Merge pull request #17245 from karalabe/azure-deps-fixups

internal, vendor: update Azure blobstore API

build/ci.go

@@ -1019,23 +1019,14 @@ func doPurge(cmdline []string) {
 	}
 	for i := 0; i < len(blobs); i++ {
 		for j := i + 1; j < len(blobs); j++ {
-			iTime, err := time.Parse(time.RFC1123, blobs[i].Properties.LastModified)
-			if err != nil {
-				log.Fatal(err)
-			}
-			jTime, err := time.Parse(time.RFC1123, blobs[j].Properties.LastModified)
-			if err != nil {
-				log.Fatal(err)
-			}
-			if iTime.After(jTime) {
+			if blobs[i].Properties.LastModified.After(blobs[j].Properties.LastModified) {
 				blobs[i], blobs[j] = blobs[j], blobs[i]
 			}
 		}
 	}
 	// Filter out all archives more recent that the given threshold
 	for i, blob := range blobs {
-		timestamp, _ := time.Parse(time.RFC1123, blob.Properties.LastModified)
-		if time.Since(timestamp) < time.Duration(*limit)*24*time.Hour {
+		if time.Since(blob.Properties.LastModified) < time.Duration(*limit)*24*time.Hour {
 			blobs = blobs[:i]
 			break
 		}

internal/build/azure.go

@@ -17,10 +17,12 @@
 package build
 
 import (
+	"context"
 	"fmt"
+	"net/url"
 	"os"
 
-	storage "github.com/Azure/azure-storage-go"
+	"github.com/Azure/azure-storage-blob-go/2018-03-28/azblob"
 )
 
 // AzureBlobstoreConfig is an authentication and configuration struct containing
@@ -43,11 +45,14 @@ func AzureBlobstoreUpload(path string, name string, config AzureBlobstoreConfig)
 		return nil
 	}
 	// Create an authenticated client against the Azure cloud
-	rawClient, err := storage.NewBasicClient(config.Account, config.Token)
-	if err != nil {
-		return err
-	}
-	client := rawClient.GetBlobService()
+	credential := azblob.NewSharedKeyCredential(config.Account, config.Token)
+	pipeline := azblob.NewPipeline(credential, azblob.PipelineOptions{})
+
+	u, _ := url.Parse(fmt.Sprintf("https://%s.blob.core.windows.net", config.Account))
+	service := azblob.NewServiceURL(*u, pipeline)
+
+	container := service.NewContainerURL(config.Container)
+	blockblob := container.NewBlockBlobURL(name)
 
 	// Stream the file to upload into the designated blobstore container
 	in, err := os.Open(path)
@@ -56,38 +61,33 @@ func AzureBlobstoreUpload(path string, name string, config AzureBlobstoreConfig)
 	}
 	defer in.Close()
 
-	info, err := in.Stat()
-	if err != nil {
-		return err
-	}
-	return client.CreateBlockBlobFromReader(config.Container, name, uint64(info.Size()), in, nil)
+	_, err = blockblob.Upload(context.Background(), in, azblob.BlobHTTPHeaders{}, azblob.Metadata{}, azblob.BlobAccessConditions{})
+	return err
 }
 
 // AzureBlobstoreList lists all the files contained within an azure blobstore.
-func AzureBlobstoreList(config AzureBlobstoreConfig) ([]storage.Blob, error) {
-	// Create an authenticated client against the Azure cloud
-	rawClient, err := storage.NewBasicClient(config.Account, config.Token)
-	if err != nil {
-		return nil, err
-	}
-	client := rawClient.GetBlobService()
+func AzureBlobstoreList(config AzureBlobstoreConfig) ([]azblob.BlobItem, error) {
+	credential := azblob.NewSharedKeyCredential(config.Account, config.Token)
+	pipeline := azblob.NewPipeline(credential, azblob.PipelineOptions{})
+
+	u, _ := url.Parse(fmt.Sprintf("https://%s.blob.core.windows.net", config.Account))
+	service := azblob.NewServiceURL(*u, pipeline)
 
 	// List all the blobs from the container and return them
-	container := client.GetContainerReference(config.Container)
+	container := service.NewContainerURL(config.Container)
 
-	blobs, err := container.ListBlobs(storage.ListBlobsParameters{
+	res, err := container.ListBlobsFlatSegment(context.Background(), azblob.Marker{}, azblob.ListBlobsSegmentOptions{
 		MaxResults: 1024 * 1024 * 1024, // Yes, fetch all of them
-		Timeout:    3600,               // Yes, wait for all of them
 	})
 	if err != nil {
 		return nil, err
 	}
-	return blobs.Blobs, nil
+	return res.Segment.BlobItems, nil
 }
 
 // AzureBlobstoreDelete iterates over a list of files to delete and removes them
 // from the blobstore.
-func AzureBlobstoreDelete(config AzureBlobstoreConfig, blobs []storage.Blob) error {
+func AzureBlobstoreDelete(config AzureBlobstoreConfig, blobs []azblob.BlobItem) error {
 	if *DryRunFlag {
 		for _, blob := range blobs {
 			fmt.Printf("would delete %s (%s) from %s/%s\n", blob.Name, blob.Properties.LastModified, config.Account, config.Container)
@@ -95,15 +95,18 @@ func AzureBlobstoreDelete(config AzureBlobstoreConfig, blobs []storage.Blob) err
 		return nil
 	}
 	// Create an authenticated client against the Azure cloud
-	rawClient, err := storage.NewBasicClient(config.Account, config.Token)
-	if err != nil {
-		return err
-	}
-	client := rawClient.GetBlobService()
+	credential := azblob.NewSharedKeyCredential(config.Account, config.Token)
+	pipeline := azblob.NewPipeline(credential, azblob.PipelineOptions{})
+
+	u, _ := url.Parse(fmt.Sprintf("https://%s.blob.core.windows.net", config.Account))
+	service := azblob.NewServiceURL(*u, pipeline)
+
+	container := service.NewContainerURL(config.Container)
 
 	// Iterate over the blobs and delete them
 	for _, blob := range blobs {
-		if err := client.DeleteBlob(config.Container, blob.Name, nil); err != nil {
+		blockblob := container.NewBlockBlobURL(blob.Name)
+		if _, err := blockblob.Delete(context.Background(), azblob.DeleteSnapshotsOptionInclude, azblob.BlobAccessConditions{}); err != nil {
 			return err
 		}
 	}

vendor/github.com/Azure/azure-pipeline-go/LICENSE

@@ -18,4 +18,4 @@
     AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-    SOFTWARE
+    SOFTWARE

vendor/github.com/Azure/azure-pipeline-go/pipeline/core.go

@@ -0,0 +1,255 @@
+package pipeline
+
+import (
+	"context"
+	"net"
+	"net/http"
+	"os"
+	"time"
+)
+
+// The Factory interface represents an object that can create its Policy object. Each HTTP request sent
+// requires that this Factory create a new instance of its Policy object.
+type Factory interface {
+	New(next Policy, po *PolicyOptions) Policy
+}
+
+// FactoryFunc is an adapter that allows the use of an ordinary function as a Factory interface.
+type FactoryFunc func(next Policy, po *PolicyOptions) PolicyFunc
+
+// New calls f(next,po).
+func (f FactoryFunc) New(next Policy, po *PolicyOptions) Policy {
+	return f(next, po)
+}
+
+// The Policy interface represents a mutable Policy object created by a Factory. The object can mutate/process
+// the HTTP request and then forward it on to the next Policy object in the linked-list. The returned
+// Response goes backward through the linked-list for additional processing.
+// NOTE: Request is passed by value so changes do not change the caller's version of
+// the request. However, Request has some fields that reference mutable objects (not strings).
+// These references are copied; a deep copy is not performed. Specifically, this means that
+// you should avoid modifying the objects referred to by these fields: URL, Header, Body,
+// GetBody, TransferEncoding, Form, MultipartForm, Trailer, TLS, Cancel, and Response.
+type Policy interface {
+	Do(ctx context.Context, request Request) (Response, error)
+}
+
+// PolicyFunc is an adapter that allows the use of an ordinary function as a Policy interface.
+type PolicyFunc func(ctx context.Context, request Request) (Response, error)
+
+// Do calls f(ctx, request).
+func (f PolicyFunc) Do(ctx context.Context, request Request) (Response, error) {
+	return f(ctx, request)
+}
+
+// Options configures a Pipeline's behavior.
+type Options struct {
+	HTTPSender Factory // If sender is nil, then the pipeline's default client is used to send the HTTP requests.
+	Log        LogOptions
+}
+
+// LogLevel tells a logger the minimum level to log. When code reports a log entry,
+// the LogLevel indicates the level of the log entry. The logger only records entries
+// whose level is at least the level it was told to log. See the Log* constants.
+// For example, if a logger is configured with LogError, then LogError, LogPanic,
+// and LogFatal entries will be logged; lower level entries are ignored.
+type LogLevel uint32
+
+const (
+	// LogNone tells a logger not to log any entries passed to it.
+	LogNone LogLevel = iota
+
+	// LogFatal tells a logger to log all LogFatal entries passed to it.
+	LogFatal
+
+	// LogPanic tells a logger to log all LogPanic and LogFatal entries passed to it.
+	LogPanic
+
+	// LogError tells a logger to log all LogError, LogPanic and LogFatal entries passed to it.
+	LogError
+
+	// LogWarning tells a logger to log all LogWarning, LogError, LogPanic and LogFatal entries passed to it.
+	LogWarning
+
+	// LogInfo tells a logger to log all LogInfo, LogWarning, LogError, LogPanic and LogFatal entries passed to it.
+	LogInfo
+
+	// LogDebug tells a logger to log all LogDebug, LogInfo, LogWarning, LogError, LogPanic and LogFatal entries passed to it.
+	LogDebug
+)
+
+// LogOptions configures the pipeline's logging mechanism & level filtering.
+type LogOptions struct {
+	Log func(level LogLevel, message string)
+
+	// ShouldLog is called periodically allowing you to return whether the specified LogLevel should be logged or not.
+	// An application can return different values over the its lifetime; this allows the application to dynamically
+	// alter what is logged. NOTE: This method can be called by multiple goroutines simultaneously so make sure
+	// you implement it in a goroutine-safe way. If nil, nothing is logged (the equivalent of returning LogNone).
+	// Usually, the function will be implemented simply like this: return level <= LogWarning
+	ShouldLog func(level LogLevel) bool
+}
+
+type pipeline struct {
+	factories []Factory
+	options   Options
+}
+
+// The Pipeline interface represents an ordered list of Factory objects and an object implementing the HTTPSender interface.
+// You construct a Pipeline by calling the pipeline.NewPipeline function. To send an HTTP request, call pipeline.NewRequest
+// and then call Pipeline's Do method passing a context, the request, and a method-specific Factory (or nil). Passing a
+// method-specific Factory allows this one call to Do to inject a Policy into the linked-list. The policy is injected where
+// the MethodFactoryMarker (see the pipeline.MethodFactoryMarker function) is in the slice of Factory objects.
+//
+// When Do is called, the Pipeline object asks each Factory object to construct its Policy object and adds each Policy to a linked-list.
+// THen, Do sends the Context and Request through all the Policy objects. The final Policy object sends the request over the network
+// (via the HTTPSender object passed to NewPipeline) and the response is returned backwards through all the Policy objects.
+// Since Pipeline and Factory objects are goroutine-safe, you typically create 1 Pipeline object and reuse it to make many HTTP requests.
+type Pipeline interface {
+	Do(ctx context.Context, methodFactory Factory, request Request) (Response, error)
+}
+
+// NewPipeline creates a new goroutine-safe Pipeline object from the slice of Factory objects and the specified options.
+func NewPipeline(factories []Factory, o Options) Pipeline {
+	if o.HTTPSender == nil {
+		o.HTTPSender = newDefaultHTTPClientFactory()
+	}
+	if o.Log.Log == nil {
+		o.Log.Log = func(LogLevel, string) {} // No-op logger
+	}
+	return &pipeline{factories: factories, options: o}
+}
+
+// Do is called for each and every HTTP request. It tells each Factory to create its own (mutable) Policy object
+// replacing a MethodFactoryMarker factory (if it exists) with the methodFactory passed in. Then, the Context and Request
+// are sent through the pipeline of Policy objects (which can transform the Request's URL/query parameters/headers) and
+// ultimately sends the transformed HTTP request over the network.
+func (p *pipeline) Do(ctx context.Context, methodFactory Factory, request Request) (Response, error) {
+	response, err := p.newPolicies(methodFactory).Do(ctx, request)
+	request.close()
+	return response, err
+}
+
+func (p *pipeline) newPolicies(methodFactory Factory) Policy {
+	// The last Policy is the one that actually sends the request over the wire and gets the response.
+	// It is overridable via the Options' HTTPSender field.
+	po := &PolicyOptions{pipeline: p} // One object shared by all policy objects
+	next := p.options.HTTPSender.New(nil, po)
+
+	// Walk over the slice of Factory objects in reverse (from wire to API)
+	markers := 0
+	for i := len(p.factories) - 1; i >= 0; i-- {
+		factory := p.factories[i]
+		if _, ok := factory.(methodFactoryMarker); ok {
+			markers++
+			if markers > 1 {
+				panic("MethodFactoryMarker can only appear once in the pipeline")
+			}
+			if methodFactory != nil {
+				// Replace MethodFactoryMarker with passed-in methodFactory
+				next = methodFactory.New(next, po)
+			}
+		} else {
+			// Use the slice's Factory to construct its Policy
+			next = factory.New(next, po)
+		}
+	}
+
+	// Each Factory has created its Policy
+	if markers == 0 && methodFactory != nil {
+		panic("Non-nil methodFactory requires MethodFactoryMarker in the pipeline")
+	}
+	return next // Return head of the Policy object linked-list
+}
+
+// A PolicyOptions represents optional information that can be used by a node in the
+// linked-list of Policy objects. A PolicyOptions is passed to the Factory's New method
+// which passes it (if desired) to the Policy object it creates. Today, the Policy object
+// uses the options to perform logging. But, in the future, this could be used for more.
+type PolicyOptions struct {
+	pipeline *pipeline
+}
+
+// ShouldLog returns true if the specified log level should be logged.
+func (po *PolicyOptions) ShouldLog(level LogLevel) bool {
+	if po.pipeline.options.Log.ShouldLog != nil {
+		return po.pipeline.options.Log.ShouldLog(level)
+	}
+	return false
+}
+
+// Log logs a string to the Pipeline's Logger.
+func (po *PolicyOptions) Log(level LogLevel, msg string) {
+	if !po.ShouldLog(level) {
+		return // Short circuit message formatting if we're not logging it
+	}
+
+	// We are logging it, ensure trailing newline
+	if len(msg) == 0 || msg[len(msg)-1] != '\n' {
+		msg += "\n" // Ensure trailing newline
+	}
+	po.pipeline.options.Log.Log(level, msg)
+
+	// If logger doesn't handle fatal/panic, we'll do it here.
+	if level == LogFatal {
+		os.Exit(1)
+	} else if level == LogPanic {
+		panic(msg)
+	}
+}
+
+var pipelineHTTPClient = newDefaultHTTPClient()
+
+func newDefaultHTTPClient() *http.Client {
+	// We want the Transport to have a large connection pool
+	return &http.Client{
+		Transport: &http.Transport{
+			Proxy: http.ProxyFromEnvironment,
+			// We use Dial instead of DialContext as DialContext has been reported to cause slower performance.
+			Dial /*Context*/ : (&net.Dialer{
+				Timeout:   30 * time.Second,
+				KeepAlive: 30 * time.Second,
+				DualStack: true,
+			}).Dial, /*Context*/
+			MaxIdleConns:           0, // No limit
+			MaxIdleConnsPerHost:    100,
+			IdleConnTimeout:        90 * time.Second,
+			TLSHandshakeTimeout:    10 * time.Second,
+			ExpectContinueTimeout:  1 * time.Second,
+			DisableKeepAlives:      false,
+			DisableCompression:     false,
+			MaxResponseHeaderBytes: 0,
+			//ResponseHeaderTimeout:  time.Duration{},
+			//ExpectContinueTimeout:  time.Duration{},
+		},
+	}
+}
+
+// newDefaultHTTPClientFactory creates a DefaultHTTPClientPolicyFactory object that sends HTTP requests to a Go's default http.Client.
+func newDefaultHTTPClientFactory() Factory {
+	return FactoryFunc(func(next Policy, po *PolicyOptions) PolicyFunc {
+		return func(ctx context.Context, request Request) (Response, error) {
+			r, err := pipelineHTTPClient.Do(request.WithContext(ctx))
+			if err != nil {
+				err = NewError(err, "HTTP request failed")
+			}
+			return NewHTTPResponse(r), err
+		}
+	})
+}
+
+var mfm = methodFactoryMarker{} // Singleton
+
+// MethodFactoryMarker returns a special marker Factory object. When Pipeline's Do method is called, any
+// MethodMarkerFactory object is replaced with the specified methodFactory object. If nil is passed fro Do's
+// methodFactory parameter, then the MethodFactoryMarker is ignored as the linked-list of Policy objects is created.
+func MethodFactoryMarker() Factory {
+	return mfm
+}
+
+type methodFactoryMarker struct {
+}
+
+func (methodFactoryMarker) New(next Policy, po *PolicyOptions) Policy {
+	panic("methodFactoryMarker policy should have been replaced with a method policy")
+}

vendor/github.com/Azure/azure-pipeline-go/pipeline/defaultlog_syslog.go

@@ -0,0 +1,33 @@
+// +build !windows,!nacl,!plan9
+
+package pipeline
+
+import (
+	"log"
+	"log/syslog"
+)
+
+// ForceLog should rarely be used. It forceable logs an entry to the
+// Windows Event Log (on Windows) or to the SysLog (on Linux)
+func ForceLog(level LogLevel, msg string) {
+	if defaultLogger == nil {
+		return // Return fast if we failed to create the logger.
+	}
+	// We are logging it, ensure trailing newline
+	if len(msg) == 0 || msg[len(msg)-1] != '\n' {
+		msg += "\n" // Ensure trailing newline
+	}
+	switch level {
+	case LogFatal:
+		defaultLogger.Fatal(msg)
+	case LogPanic:
+		defaultLogger.Panic(msg)
+	case LogError, LogWarning, LogInfo:
+		defaultLogger.Print(msg)
+	}
+}
+
+var defaultLogger = func() *log.Logger {
+	l, _ := syslog.NewLogger(syslog.LOG_USER|syslog.LOG_WARNING, log.LstdFlags)
+	return l
+}()

vendor/github.com/Azure/azure-pipeline-go/pipeline/defaultlog_windows.go

@@ -0,0 +1,61 @@
+package pipeline
+
+import (
+	"os"
+	"syscall"
+	"unsafe"
+)
+
+// ForceLog should rarely be used. It forceable logs an entry to the
+// Windows Event Log (on Windows) or to the SysLog (on Linux)
+func ForceLog(level LogLevel, msg string) {
+	var el eventType
+	switch level {
+	case LogError, LogFatal, LogPanic:
+		el = elError
+	case LogWarning:
+		el = elWarning
+	case LogInfo:
+		el = elInfo
+	}
+	// We are logging it, ensure trailing newline
+	if len(msg) == 0 || msg[len(msg)-1] != '\n' {
+		msg += "\n" // Ensure trailing newline
+	}
+	reportEvent(el, 0, msg)
+}
+
+type eventType int16
+
+const (
+	elSuccess eventType = 0
+	elError   eventType = 1
+	elWarning eventType = 2
+	elInfo    eventType = 4
+)
+
+var reportEvent = func() func(eventType eventType, eventID int32, msg string) {
+	advAPI32 := syscall.MustLoadDLL("AdvAPI32.dll")
+	registerEventSource := advAPI32.MustFindProc("RegisterEventSourceW")
+
+	sourceName, _ := os.Executable()
+	sourceNameUTF16, _ := syscall.UTF16PtrFromString(sourceName)
+	handle, _, lastErr := registerEventSource.Call(uintptr(0), uintptr(unsafe.Pointer(sourceNameUTF16)))
+	if lastErr == nil { // On error, logging is a no-op
+		return func(eventType eventType, eventID int32, msg string) {}
+	}
+	reportEvent := advAPI32.MustFindProc("ReportEventW")
+	return func(eventType eventType, eventID int32, msg string) {
+		s, _ := syscall.UTF16PtrFromString(msg)
+		_, _, _ = reportEvent.Call(
+			uintptr(handle),             // HANDLE  hEventLog
+			uintptr(eventType),          // WORD    wType
+			uintptr(0),                  // WORD    wCategory
+			uintptr(eventID),            // DWORD   dwEventID
+			uintptr(0),                  // PSID    lpUserSid
+			uintptr(1),                  // WORD    wNumStrings
+			uintptr(0),                  // DWORD   dwDataSize
+			uintptr(unsafe.Pointer(&s)), // LPCTSTR *lpStrings
+			uintptr(0))                  // LPVOID  lpRawData
+	}
+}()

vendor/github.com/Azure/azure-pipeline-go/pipeline/doc.go

@@ -0,0 +1,161 @@
+// Copyright 2017 Microsoft Corporation. All rights reserved.
+// Use of this source code is governed by an MIT
+// license that can be found in the LICENSE file.
+
+/*
+Package pipeline implements an HTTP request/response middleware pipeline whose
+policy objects mutate an HTTP request's URL, query parameters, and/or headers before
+the request is sent over the wire.
+
+Not all policy objects mutate an HTTP request; some policy objects simply impact the
+flow of requests/responses by performing operations such as logging, retry policies,
+timeouts, failure injection, and deserialization of response payloads.
+
+Implementing the Policy Interface
+
+To implement a policy, define a struct that implements the pipeline.Policy interface's Do method. Your Do
+method is called when an HTTP request wants to be sent over the network. Your Do method can perform any
+operation(s) it desires. For example, it can log the outgoing request, mutate the URL, headers, and/or query
+parameters, inject a failure, etc. Your Do method must then forward the HTTP request to next Policy object
+in a linked-list ensuring that the remaining Policy objects perform their work. Ultimately, the last Policy
+object sends the HTTP request over the network (by calling the HTTPSender's Do method).
+
+When an HTTP response comes back, each Policy object in the linked-list gets a chance to process the response
+(in reverse order). The Policy object can log the response, retry the operation if due to a transient failure
+or timeout, deserialize the response body, etc. Ultimately, the last Policy object returns the HTTP response
+to the code that initiated the original HTTP request.
+
+Here is a template for how to define a pipeline.Policy object:
+
+   type myPolicy struct {
+      node   PolicyNode
+      // TODO: Add configuration/setting fields here (if desired)...
+   }
+
+   func (p *myPolicy) Do(ctx context.Context, request pipeline.Request) (pipeline.Response, error) {
+      // TODO: Mutate/process the HTTP request here...
+      response, err := p.node.Do(ctx, request)	// Forward HTTP request to next Policy & get HTTP response
+      // TODO: Mutate/process the HTTP response here...
+      return response, err	// Return response/error to previous Policy
+   }
+
+Implementing the Factory Interface
+
+Each Policy struct definition requires a factory struct definition that implements the pipeline.Factory interface's New
+method. The New method is called when application code wants to initiate a new HTTP request. Factory's New method is
+passed a pipeline.PolicyNode object which contains a reference to the owning pipeline.Pipeline object (discussed later) and
+a reference to the next Policy object in the linked list. The New method should create its corresponding Policy object
+passing it the PolicyNode and any other configuration/settings fields appropriate for the specific Policy object.
+
+Here is a template for how to define a pipeline.Policy object:
+
+   // NOTE: Once created & initialized, Factory objects should be goroutine-safe (ex: immutable);
+   // this allows reuse (efficient use of memory) and makes these objects usable by multiple goroutines concurrently.
+   type myPolicyFactory struct {
+      // TODO: Add any configuration/setting fields if desired...
+   }
+
+   func (f *myPolicyFactory) New(node pipeline.PolicyNode) Policy {
+      return &myPolicy{node: node} // TODO: Also initialize any configuration/setting fields here (if desired)...
+   }
+
+Using your Factory and Policy objects via a Pipeline
+
+To use the Factory and Policy objects, an application constructs a slice of Factory objects and passes
+this slice to the pipeline.NewPipeline function.
+
+   func NewPipeline(factories []pipeline.Factory, sender pipeline.HTTPSender) Pipeline
+
+This function also requires an object implementing the HTTPSender interface. For simple scenarios,
+passing nil for HTTPSender causes a standard Go http.Client object to be created and used to actually
+send the HTTP response over the network. For more advanced scenarios, you can pass your own HTTPSender
+object in. This allows sharing of http.Client objects or the use of custom-configured http.Client objects
+or other objects that can simulate the network requests for testing purposes.
+
+Now that you have a pipeline.Pipeline object, you can create a pipeline.Request object (which is a simple
+wrapper around Go's standard http.Request object) and pass it to Pipeline's Do method along with passing a
+context.Context for cancelling the HTTP request (if desired).
+
+   type Pipeline interface {
+      Do(ctx context.Context, methodFactory pipeline.Factory, request pipeline.Request) (pipeline.Response, error)
+   }
+
+Do iterates over the slice of Factory objects and tells each one to create its corresponding
+Policy object. After the linked-list of Policy objects have been created, Do calls the first
+Policy object passing it the Context & HTTP request parameters. These parameters now flow through
+all the Policy objects giving each object a chance to look at and/or mutate the HTTP request.
+The last Policy object sends the message over the network.
+
+When the network operation completes, the HTTP response and error return values pass
+back through the same Policy objects in reverse order. Most Policy objects ignore the
+response/error but some log the result, retry the operation (depending on the exact
+reason the operation failed), or deserialize the response's body. Your own Policy
+objects can do whatever they like when processing outgoing requests or incoming responses.
+
+Note that after an I/O request runs to completion, the Policy objects for that request
+are garbage collected. However, Pipeline object (like Factory objects) are goroutine-safe allowing
+them to be created once and reused over many I/O operations. This allows for efficient use of
+memory and also makes them safely usable by multiple goroutines concurrently.
+
+Inserting a Method-Specific Factory into the Linked-List of Policy Objects
+
+While Pipeline and Factory objects can be reused over many different operations, it is
+common to have special behavior for a specific operation/method. For example, a method
+may need to deserialize the response's body to an instance of a specific data type.
+To accommodate this, the Pipeline's Do method takes an additional method-specific
+Factory object. The Do method tells this Factory to create a Policy object and
+injects this method-specific Policy object into the linked-list of Policy objects.
+
+When creating a Pipeline object, the slice of Factory objects passed must have 1
+(and only 1) entry marking where the method-specific Factory should be injected.
+The Factory marker is obtained by calling the pipeline.MethodFactoryMarker() function:
+
+   func MethodFactoryMarker() pipeline.Factory
+
+Creating an HTTP Request Object
+
+The HTTP request object passed to Pipeline's Do method is not Go's http.Request struct.
+Instead, it is a pipeline.Request struct which is a simple wrapper around Go's standard
+http.Request. You create a pipeline.Request object by calling the pipeline.NewRequest function:
+
+   func NewRequest(method string, url url.URL, options pipeline.RequestOptions) (request pipeline.Request, err error)
+
+To this function, you must pass a pipeline.RequestOptions that looks like this:
+
+   type RequestOptions struct {
+      // The readable and seekable stream to be sent to the server as the request's body.
+      Body io.ReadSeeker
+
+      // The callback method (if not nil) to be invoked to report progress as the stream is uploaded in the HTTP request.
+      Progress ProgressReceiver
+   }
+
+The method and struct ensure that the request's body stream is a read/seekable stream.
+A seekable stream is required so that upon retry, the final Policy object can seek
+the stream back to the beginning before retrying the network request and re-uploading the
+body. In addition, you can associate a ProgressReceiver callback function which will be
+invoked periodically to report progress while bytes are being read from the body stream
+and sent over the network.
+
+Processing the HTTP Response
+
+When an HTTP response comes in from the network, a reference to Go's http.Response struct is
+embedded in a struct that implements the pipeline.Response interface:
+
+   type Response interface {
+      Response() *http.Response
+   }
+
+This interface is returned through all the Policy objects. Each Policy object can call the Response
+interface's Response method to examine (or mutate) the embedded http.Response object.
+
+A Policy object can internally define another struct (implementing the pipeline.Response interface)
+that embeds an http.Response and adds additional fields and return this structure to other Policy
+objects. This allows a Policy object to deserialize the body to some other struct and return the
+original http.Response and the additional struct back through the Policy chain. Other Policy objects
+can see the Response but cannot see the additional struct with the deserialized body. After all the
+Policy objects have returned, the pipeline.Response interface is returned by Pipeline's Do method.
+The caller of this method can perform a type assertion attempting to get back to the struct type
+really returned by the Policy object. If the type assertion is successful, the caller now has
+access to both the http.Response and the deserialized struct object.*/
+package pipeline

vendor/github.com/Azure/azure-pipeline-go/pipeline/error.go

@@ -0,0 +1,121 @@
+package pipeline
+
+import (
+	"fmt"
+	"runtime"
+)
+
+type causer interface {
+	Cause() error
+}
+
+// ErrorNode can be an embedded field in a private error object. This field
+// adds Program Counter support and a 'cause' (reference to a preceding error).
+// When initializing a error type with this embedded field, initialize the
+// ErrorNode field by calling ErrorNode{}.Initialize(cause).
+type ErrorNode struct {
+	pc    uintptr // Represents a Program Counter that you can get symbols for.
+	cause error   // Refers to the preceding error (or nil)
+}
+
+// Error returns a string with the PC's symbols or "" if the PC is invalid.
+// When defining a new error type, have its Error method call this one passing
+// it the string representation of the error.
+func (e *ErrorNode) Error(msg string) string {
+	s := ""
+	if fn := runtime.FuncForPC(e.pc); fn != nil {
+		file, line := fn.FileLine(e.pc)
+		s = fmt.Sprintf("-> %v, %v:%v\n", fn.Name(), file, line)
+	}
+	s += msg + "\n\n"
+	if e.cause != nil {
+		s += e.cause.Error() + "\n"
+	}
+	return s
+}
+
+// Cause returns the error that preceded this error.
+func (e *ErrorNode) Cause() error { return e.cause }
+
+// Temporary returns true if the error occurred due to a temporary condition.
+func (e ErrorNode) Temporary() bool {
+	type temporary interface {
+		Temporary() bool
+	}
+
+	for err := e.cause; err != nil; {
+		if t, ok := err.(temporary); ok {
+			return t.Temporary()
+		}
+
+		if cause, ok := err.(causer); ok {
+			err = cause.Cause()
+		} else {
+			err = nil
+		}
+	}
+	return false
+}
+
+// Timeout returns true if the error occurred due to time expiring.
+func (e ErrorNode) Timeout() bool {
+	type timeout interface {
+		Timeout() bool
+	}
+
+	for err := e.cause; err != nil; {
+		if t, ok := err.(timeout); ok {
+			return t.Timeout()
+		}
+
+		if cause, ok := err.(causer); ok {
+			err = cause.Cause()
+		} else {
+			err = nil
+		}
+	}
+	return false
+}
+
+// Initialize is used to initialize an embedded ErrorNode field.
+// It captures the caller's program counter and saves the cause (preceding error).
+// To initialize the field, use "ErrorNode{}.Initialize(cause, 3)". A callersToSkip
+// value of 3 is very common; but, depending on your code nesting, you may need
+// a different value.
+func (ErrorNode) Initialize(cause error, callersToSkip int) ErrorNode {
+	// Get the PC of Initialize method's caller.
+	pc := [1]uintptr{}
+	_ = runtime.Callers(callersToSkip, pc[:])
+	return ErrorNode{pc: pc[0], cause: cause}
+}
+
+// Cause walks all the preceding errors and return the originating error.
+func Cause(err error) error {
+	for err != nil {
+		cause, ok := err.(causer)
+		if !ok {
+			break
+		}
+		err = cause.Cause()
+	}
+	return err
+}
+
+// NewError creates a simple string error (like Error.New). But, this
+// error also captures the caller's Program Counter and the preceding error.
+func NewError(cause error, msg string) error {
+	return &pcError{
+		ErrorNode: ErrorNode{}.Initialize(cause, 3),
+		msg:       msg,
+	}
+}
+
+// pcError is a simple string error (like error.New) with an ErrorNode (PC & cause).
+type pcError struct {
+	ErrorNode
+	msg string
+}
+
+// Error satisfies the error interface. It shows the error with Program Counter
+// symbols and calls Error on the preceding error so you can see the full error chain.
+func (e *pcError) Error() string { return e.ErrorNode.Error(e.msg) }

vendor/github.com/Azure/azure-pipeline-go/pipeline/progress.go

@@ -0,0 +1,82 @@
+package pipeline
+
+import "io"
+
+// ********** The following is common between the request body AND the response body.
+
+// ProgressReceiver defines the signature of a callback function invoked as progress is reported.
+type ProgressReceiver func(bytesTransferred int64)
+
+// ********** The following are specific to the request body (a ReadSeekCloser)
+
+// This struct is used when sending a body to the network
+type requestBodyProgress struct {
+	requestBody io.ReadSeeker // Seeking is required to support retries
+	pr          ProgressReceiver
+}
+
+// NewRequestBodyProgress adds progress reporting to an HTTP request's body stream.
+func NewRequestBodyProgress(requestBody io.ReadSeeker, pr ProgressReceiver) io.ReadSeeker {
+	if pr == nil {
+		panic("pr must not be nil")
+	}
+	return &requestBodyProgress{requestBody: requestBody, pr: pr}
+}
+
+// Read reads a block of data from an inner stream and reports progress
+func (rbp *requestBodyProgress) Read(p []byte) (n int, err error) {
+	n, err = rbp.requestBody.Read(p)
+	if err != nil {
+		return
+	}
+	// Invokes the user's callback method to report progress
+	position, err := rbp.requestBody.Seek(0, io.SeekCurrent)
+	if err != nil {
+		panic(err)
+	}
+	rbp.pr(position)
+	return
+}
+
+func (rbp *requestBodyProgress) Seek(offset int64, whence int) (offsetFromStart int64, err error) {
+	return rbp.requestBody.Seek(offset, whence)
+}
+
+// requestBodyProgress supports Close but the underlying stream may not; if it does, Close will close it.
+func (rbp *requestBodyProgress) Close() error {
+	if c, ok := rbp.requestBody.(io.Closer); ok {
+		return c.Close()
+	}
+	return nil
+}
+
+// ********** The following are specific to the response body (a ReadCloser)
+
+// This struct is used when sending a body to the network
+type responseBodyProgress struct {
+	responseBody io.ReadCloser
+	pr           ProgressReceiver
+	offset       int64
+}
+
+// NewResponseBodyProgress adds progress reporting to an HTTP response's body stream.
+func NewResponseBodyProgress(responseBody io.ReadCloser, pr ProgressReceiver) io.ReadCloser {
+	if pr == nil {
+		panic("pr must not be nil")
+	}
+	return &responseBodyProgress{responseBody: responseBody, pr: pr, offset: 0}
+}
+
+// Read reads a block of data from an inner stream and reports progress
+func (rbp *responseBodyProgress) Read(p []byte) (n int, err error) {
+	n, err = rbp.responseBody.Read(p)
+	rbp.offset += int64(n)
+
+	// Invokes the user's callback method to report progress
+	rbp.pr(rbp.offset)
+	return
+}
+
+func (rbp *responseBodyProgress) Close() error {
+	return rbp.responseBody.Close()
+}

vendor/github.com/Azure/azure-pipeline-go/pipeline/request.go

@@ -0,0 +1,147 @@
+package pipeline
+
+import (
+	"io"
+	"net/http"
+	"net/url"
+	"strconv"
+)
+
+// Request is a thin wrapper over an http.Request. The wrapper provides several helper methods.
+type Request struct {
+	*http.Request
+}
+
+// NewRequest initializes a new HTTP request object with any desired options.
+func NewRequest(method string, url url.URL, body io.ReadSeeker) (request Request, err error) {
+	// Note: the url is passed by value so that any pipeline operations that modify it do so on a copy.
+
+	// This code to construct an http.Request is copied from http.NewRequest(); we intentionally omitted removeEmptyPort for now.
+	request.Request = &http.Request{
+		Method:     method,
+		URL:        &url,
+		Proto:      "HTTP/1.1",
+		ProtoMajor: 1,
+		ProtoMinor: 1,
+		Header:     make(http.Header),
+		Host:       url.Host,
+	}
+
+	if body != nil {
+		err = request.SetBody(body)
+	}
+	return
+}
+
+// SetBody sets the body and content length, assumes body is not nil.
+func (r Request) SetBody(body io.ReadSeeker) error {
+	size, err := body.Seek(0, io.SeekEnd)
+	if err != nil {
+		return err
+	}
+
+	body.Seek(0, io.SeekStart)
+	r.ContentLength = size
+	r.Header["Content-Length"] = []string{strconv.FormatInt(size, 10)}
+
+	if size != 0 {
+		r.Body = &retryableRequestBody{body: body}
+		r.GetBody = func() (io.ReadCloser, error) {
+			_, err := body.Seek(0, io.SeekStart)
+			if err != nil {
+				return nil, err
+			}
+			return r.Body, nil
+		}
+	} else {
+		// in case the body is an empty stream, we need to use http.NoBody to explicitly provide no content
+		r.Body = http.NoBody
+		r.GetBody = func() (io.ReadCloser, error) {
+			return http.NoBody, nil
+		}
+
+		// close the user-provided empty body
+		if c, ok := body.(io.Closer); ok {
+			c.Close()
+		}
+	}
+
+	return nil
+}
+
+// Copy makes a copy of an http.Request. Specifically, it makes a deep copy
+// of its Method, URL, Host, Proto(Major/Minor), Header. ContentLength, Close,
+// RemoteAddr, RequestURI. Copy makes a shallow copy of the Body, GetBody, TLS,
+// Cancel, Response, and ctx fields. Copy panics if any of these fields are
+// not nil: TransferEncoding, Form, PostForm, MultipartForm, or Trailer.
+func (r Request) Copy() Request {
+	if r.TransferEncoding != nil || r.Form != nil || r.PostForm != nil || r.MultipartForm != nil || r.Trailer != nil {
+		panic("Can't make a deep copy of the http.Request because at least one of the following is not nil:" +
+			"TransferEncoding, Form, PostForm, MultipartForm, or Trailer.")
+	}
+	copy := *r.Request          // Copy the request
+	urlCopy := *(r.Request.URL) // Copy the URL
+	copy.URL = &urlCopy
+	copy.Header = http.Header{} // Copy the header
+	for k, vs := range r.Header {
+		for _, value := range vs {
+			copy.Header.Add(k, value)
+		}
+	}
+	return Request{Request: &copy} // Return the copy
+}
+
+func (r Request) close() error {
+	if r.Body != nil && r.Body != http.NoBody {
+		c, ok := r.Body.(*retryableRequestBody)
+		if !ok {
+			panic("unexpected request body type (should be *retryableReadSeekerCloser)")
+		}
+		return c.realClose()
+	}
+	return nil
+}
+
+// RewindBody seeks the request's Body stream back to the beginning so it can be resent when retrying an operation.
+func (r Request) RewindBody() error {
+	if r.Body != nil && r.Body != http.NoBody {
+		s, ok := r.Body.(io.Seeker)
+		if !ok {
+			panic("unexpected request body type (should be io.Seeker)")
+		}
+
+		// Reset the stream back to the beginning
+		_, err := s.Seek(0, io.SeekStart)
+		return err
+	}
+	return nil
+}
+
+// ********** The following type/methods implement the retryableRequestBody (a ReadSeekCloser)
+
+// This struct is used when sending a body to the network
+type retryableRequestBody struct {
+	body io.ReadSeeker // Seeking is required to support retries
+}
+
+// Read reads a block of data from an inner stream and reports progress
+func (b *retryableRequestBody) Read(p []byte) (n int, err error) {
+	return b.body.Read(p)
+}
+
+func (b *retryableRequestBody) Seek(offset int64, whence int) (offsetFromStart int64, err error) {
+	return b.body.Seek(offset, whence)
+}
+
+func (b *retryableRequestBody) Close() error {
+	// We don't want the underlying transport to close the request body on transient failures so this is a nop.
+	// The pipeline closes the request body upon success.
+	return nil
+}
+
+func (b *retryableRequestBody) realClose() error {
+	if c, ok := b.body.(io.Closer); ok {
+		return c.Close()
+	}
+	return nil
+}

vendor/github.com/Azure/azure-pipeline-go/pipeline/response.go

@@ -0,0 +1,74 @@
+package pipeline
+
+import (
+	"bytes"
+	"fmt"
+	"net/http"
+	"sort"
+	"strings"
+)
+
+// The Response interface exposes an http.Response object as it returns through the pipeline of Policy objects.
+// This ensures that Policy objects have access to the HTTP response. However, the object this interface encapsulates
+// might be a struct with additional fields that is created by a Policy object (typically a method-specific Factory).
+// The method that injected the method-specific Factory gets this returned Response and performs a type assertion
+// to the expected struct and returns the struct to its caller.
+type Response interface {
+	Response() *http.Response
+}
+
+// This is the default struct that has the http.Response.
+// A method can replace this struct with its own struct containing an http.Response
+// field and any other additional fields.
+type httpResponse struct {
+	response *http.Response
+}
+
+// NewHTTPResponse is typically called by a Policy object to return a Response object.
+func NewHTTPResponse(response *http.Response) Response {
+	return &httpResponse{response: response}
+}
+
+// This method satisfies the public Response interface's Response method
+func (r httpResponse) Response() *http.Response {
+	return r.response
+}
+
+// WriteRequestWithResponse appends a formatted HTTP request into a Buffer. If request and/or err are
+// not nil, then these are also written into the Buffer.
+func WriteRequestWithResponse(b *bytes.Buffer, request *http.Request, response *http.Response, err error) {
+	// Write the request into the buffer.
+	fmt.Fprint(b, "   "+request.Method+" "+request.URL.String()+"\n")
+	writeHeader(b, request.Header)
+	if response != nil {
+		fmt.Fprintln(b, "   --------------------------------------------------------------------------------")
+		fmt.Fprint(b, "   RESPONSE Status: "+response.Status+"\n")
+		writeHeader(b, response.Header)
+	}
+	if err != nil {
+		fmt.Fprintln(b, "   --------------------------------------------------------------------------------")
+		fmt.Fprint(b, "   ERROR:\n"+err.Error()+"\n")
+	}
+}
+
+// formatHeaders appends an HTTP request's or response's header into a Buffer.
+func writeHeader(b *bytes.Buffer, header map[string][]string) {
+	if len(header) == 0 {
+		b.WriteString("   (no headers)\n")
+		return
+	}
+	keys := make([]string, 0, len(header))
+	// Alphabetize the headers
+	for k := range header {
+		keys = append(keys, k)
+	}
+	sort.Strings(keys)
+	for _, k := range keys {
+		// Redact the value of any Authorization header to prevent security information from persisting in logs
+		value := interface{}("REDACTED")
+		if !strings.EqualFold(k, "Authorization") {
+			value = header[k]
+		}
+		fmt.Fprintf(b, "   %s: %+v\n", k, value)
+	}
+}

vendor/github.com/Azure/azure-pipeline-go/pipeline/version.go

@@ -0,0 +1,9 @@
+package pipeline
+
+const (
+	// UserAgent is the string to be used in the user agent string when making requests.
+	UserAgent = "azure-pipeline-go/" + Version
+
+	// Version is the semantic version (see http://semver.org) of the pipeline package.
+	Version = "0.1.0"
+)

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/access_conditions.go

@@ -0,0 +1,67 @@
+package azblob
+
+import (
+	"time"
+)
+
+// HTTPAccessConditions identifies standard HTTP access conditions which you optionally set.
+type HTTPAccessConditions struct {
+	IfModifiedSince   time.Time
+	IfUnmodifiedSince time.Time
+	IfMatch           ETag
+	IfNoneMatch       ETag
+}
+
+// pointers is for internal infrastructure. It returns the fields as pointers.
+func (ac HTTPAccessConditions) pointers() (ims *time.Time, ius *time.Time, ime *ETag, inme *ETag) {
+	if !ac.IfModifiedSince.IsZero() {
+		ims = &ac.IfModifiedSince
+	}
+	if !ac.IfUnmodifiedSince.IsZero() {
+		ius = &ac.IfUnmodifiedSince
+	}
+	if ac.IfMatch != ETagNone {
+		ime = &ac.IfMatch
+	}
+	if ac.IfNoneMatch != ETagNone {
+		inme = &ac.IfNoneMatch
+	}
+	return
+}
+
+// ContainerAccessConditions identifies container-specific access conditions which you optionally set.
+type ContainerAccessConditions struct {
+	HTTPAccessConditions
+	LeaseAccessConditions
+}
+
+// BlobAccessConditions identifies blob-specific access conditions which you optionally set.
+type BlobAccessConditions struct {
+	HTTPAccessConditions
+	LeaseAccessConditions
+	AppendBlobAccessConditions
+	PageBlobAccessConditions
+}
+
+// LeaseAccessConditions identifies lease access conditions for a container or blob which you optionally set.
+type LeaseAccessConditions struct {
+	LeaseID string
+}
+
+// pointers is for internal infrastructure. It returns the fields as pointers.
+func (ac LeaseAccessConditions) pointers() (leaseID *string) {
+	if ac.LeaseID != "" {
+		leaseID = &ac.LeaseID
+	}
+	return
+}
+
+/*
+// getInt32 is for internal infrastructure. It is used with access condition values where
+// 0 (the default setting) is meaningful. The library interprets 0 as do not send the header
+// and the privately-storage field in the access condition object is stored as +1 higher than desired.
+// THis method returns true, if the value is > 0 (explicitly set) and the stored value - 1 (the set desired value).
+func getInt32(value int32) (bool, int32) {
+	return value > 0, value - 1
+}
+*/

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/atomicmorph.go

@@ -0,0 +1,79 @@
+package azblob
+
+import "sync/atomic"
+
+// AtomicMorpherInt32 identifies a method passed to and invoked by the AtomicMorphInt32 function.
+// The AtomicMorpher callback is passed a startValue and based on this value it returns
+// what the new value should be and the result that AtomicMorph should return to its caller.
+type AtomicMorpherInt32 func(startVal int32) (val int32, morphResult interface{})
+
+// AtomicMorph atomically morphs target in to new value (and result) as indicated bythe AtomicMorpher callback function.
+func AtomicMorphInt32(target *int32, morpher AtomicMorpherInt32) interface{} {
+	if target == nil || morpher == nil {
+		panic("target and morpher mut not be nil")
+	}
+	for {
+		currentVal := atomic.LoadInt32(target)
+		desiredVal, morphResult := morpher(currentVal)
+		if atomic.CompareAndSwapInt32(target, currentVal, desiredVal) {
+			return morphResult
+		}
+	}
+}
+
+// AtomicMorpherUint32 identifies a method passed to and invoked by the AtomicMorph function.
+// The AtomicMorpher callback is passed a startValue and based on this value it returns
+// what the new value should be and the result that AtomicMorph should return to its caller.
+type AtomicMorpherUint32 func(startVal uint32) (val uint32, morphResult interface{})
+
+// AtomicMorph atomically morphs target in to new value (and result) as indicated bythe AtomicMorpher callback function.
+func AtomicMorphUint32(target *uint32, morpher AtomicMorpherUint32) interface{} {
+	if target == nil || morpher == nil {
+		panic("target and morpher mut not be nil")
+	}
+	for {
+		currentVal := atomic.LoadUint32(target)
+		desiredVal, morphResult := morpher(currentVal)
+		if atomic.CompareAndSwapUint32(target, currentVal, desiredVal) {
+			return morphResult
+		}
+	}
+}
+
+// AtomicMorpherUint64 identifies a method passed to and invoked by the AtomicMorphUint64 function.
+// The AtomicMorpher callback is passed a startValue and based on this value it returns
+// what the new value should be and the result that AtomicMorph should return to its caller.
+type AtomicMorpherInt64 func(startVal int64) (val int64, morphResult interface{})
+
+// AtomicMorph atomically morphs target in to new value (and result) as indicated bythe AtomicMorpher callback function.
+func AtomicMorphInt64(target *int64, morpher AtomicMorpherInt64) interface{} {
+	if target == nil || morpher == nil {
+		panic("target and morpher mut not be nil")
+	}
+	for {
+		currentVal := atomic.LoadInt64(target)
+		desiredVal, morphResult := morpher(currentVal)
+		if atomic.CompareAndSwapInt64(target, currentVal, desiredVal) {
+			return morphResult
+		}
+	}
+}
+
+// AtomicMorpherUint64 identifies a method passed to and invoked by the AtomicMorphUint64 function.
+// The AtomicMorpher callback is passed a startValue and based on this value it returns
+// what the new value should be and the result that AtomicMorph should return to its caller.
+type AtomicMorpherUint64 func(startVal uint64) (val uint64, morphResult interface{})
+
+// AtomicMorph atomically morphs target in to new value (and result) as indicated bythe AtomicMorpher callback function.
+func AtomicMorphUint64(target *uint64, morpher AtomicMorpherUint64) interface{} {
+	if target == nil || morpher == nil {
+		panic("target and morpher mut not be nil")
+	}
+	for {
+		currentVal := atomic.LoadUint64(target)
+		desiredVal, morphResult := morpher(currentVal)
+		if atomic.CompareAndSwapUint64(target, currentVal, desiredVal) {
+			return morphResult
+		}
+	}
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/highlevel.go

@@ -0,0 +1,510 @@
+package azblob
+
+import (
+	"context"
+	"encoding/base64"
+	"fmt"
+	"io"
+	"net/http"
+
+	"bytes"
+	"os"
+	"sync"
+	"time"
+
+	"github.com/Azure/azure-pipeline-go/pipeline"
+)
+
+// CommonResponseHeaders returns the headers common to all blob REST API responses.
+type CommonResponse interface {
+	// ETag returns the value for header ETag.
+	ETag() ETag
+
+	// LastModified returns the value for header Last-Modified.
+	LastModified() time.Time
+
+	// RequestID returns the value for header x-ms-request-id.
+	RequestID() string
+
+	// Date returns the value for header Date.
+	Date() time.Time
+
+	// Version returns the value for header x-ms-version.
+	Version() string
+
+	// Response returns the raw HTTP response object.
+	Response() *http.Response
+}
+
+// UploadToBlockBlobOptions identifies options used by the UploadBufferToBlockBlob and UploadFileToBlockBlob functions.
+type UploadToBlockBlobOptions struct {
+	// BlockSize specifies the block size to use; the default (and maximum size) is BlockBlobMaxStageBlockBytes.
+	BlockSize int64
+
+	// Progress is a function that is invoked periodically as bytes are sent to the BlockBlobURL.
+	Progress pipeline.ProgressReceiver
+
+	// BlobHTTPHeaders indicates the HTTP headers to be associated with the blob.
+	BlobHTTPHeaders BlobHTTPHeaders
+
+	// Metadata indicates the metadata to be associated with the blob when PutBlockList is called.
+	Metadata Metadata
+
+	// AccessConditions indicates the access conditions for the block blob.
+	AccessConditions BlobAccessConditions
+
+	// Parallelism indicates the maximum number of blocks to upload in parallel (0=default)
+	Parallelism uint16
+}
+
+// UploadBufferToBlockBlob uploads a buffer in blocks to a block blob.
+func UploadBufferToBlockBlob(ctx context.Context, b []byte,
+	blockBlobURL BlockBlobURL, o UploadToBlockBlobOptions) (CommonResponse, error) {
+
+	// Validate parameters and set defaults
+	if o.BlockSize < 0 || o.BlockSize > BlockBlobMaxUploadBlobBytes {
+		panic(fmt.Sprintf("BlockSize option must be > 0 and <= %d", BlockBlobMaxUploadBlobBytes))
+	}
+	if o.BlockSize == 0 {
+		o.BlockSize = BlockBlobMaxUploadBlobBytes // Default if unspecified
+	}
+	size := int64(len(b))
+
+	if size <= BlockBlobMaxUploadBlobBytes {
+		// If the size can fit in 1 Upload call, do it this way
+		var body io.ReadSeeker = bytes.NewReader(b)
+		if o.Progress != nil {
+			body = pipeline.NewRequestBodyProgress(body, o.Progress)
+		}
+		return blockBlobURL.Upload(ctx, body, o.BlobHTTPHeaders, o.Metadata, o.AccessConditions)
+	}
+
+	var numBlocks = uint16(((size - 1) / o.BlockSize) + 1)
+	if numBlocks > BlockBlobMaxBlocks {
+		panic(fmt.Sprintf("The buffer's size is too big or the BlockSize is too small; the number of blocks must be <= %d", BlockBlobMaxBlocks))
+	}
+
+	blockIDList := make([]string, numBlocks) // Base-64 encoded block IDs
+	progress := int64(0)
+	progressLock := &sync.Mutex{}
+
+	err := doBatchTransfer(ctx, batchTransferOptions{
+		operationName: "UploadBufferToBlockBlob",
+		transferSize:  size,
+		chunkSize:     o.BlockSize,
+		parallelism:   o.Parallelism,
+		operation: func(offset int64, count int64) error {
+			// This function is called once per block.
+			// It is passed this block's offset within the buffer and its count of bytes
+			// Prepare to read the proper block/section of the buffer
+			var body io.ReadSeeker = bytes.NewReader(b[offset : offset+count])
+			blockNum := offset / o.BlockSize
+			if o.Progress != nil {
+				blockProgress := int64(0)
+				body = pipeline.NewRequestBodyProgress(body,
+					func(bytesTransferred int64) {
+						diff := bytesTransferred - blockProgress
+						blockProgress = bytesTransferred
+						progressLock.Lock() // 1 goroutine at a time gets a progress report
+						progress += diff
+						o.Progress(progress)
+						progressLock.Unlock()
+					})
+			}
+
+			// Block IDs are unique values to avoid issue if 2+ clients are uploading blocks
+			// at the same time causing PutBlockList to get a mix of blocks from all the clients.
+			blockIDList[blockNum] = base64.StdEncoding.EncodeToString(newUUID().bytes())
+			_, err := blockBlobURL.StageBlock(ctx, blockIDList[blockNum], body, o.AccessConditions.LeaseAccessConditions)
+			return err
+		},
+	})
+	if err != nil {
+		return nil, err
+	}
+	// All put blocks were successful, call Put Block List to finalize the blob
+	return blockBlobURL.CommitBlockList(ctx, blockIDList, o.BlobHTTPHeaders, o.Metadata, o.AccessConditions)
+}
+
+// UploadFileToBlockBlob uploads a file in blocks to a block blob.
+func UploadFileToBlockBlob(ctx context.Context, file *os.File,
+	blockBlobURL BlockBlobURL, o UploadToBlockBlobOptions) (CommonResponse, error) {
+
+	stat, err := file.Stat()
+	if err != nil {
+		return nil, err
+	}
+	m := mmf{} // Default to an empty slice; used for 0-size file
+	if stat.Size() != 0 {
+		m, err = newMMF(file, false, 0, int(stat.Size()))
+		if err != nil {
+			return nil, err
+		}
+		defer m.unmap()
+	}
+	return UploadBufferToBlockBlob(ctx, m, blockBlobURL, o)
+}
+
+///////////////////////////////////////////////////////////////////////////////
+
+
+const BlobDefaultDownloadBlockSize = int64(4 * 1024 * 1024) // 4MB
+
+// DownloadFromAzureFileOptions identifies options used by the DownloadAzureFileToBuffer and DownloadAzureFileToFile functions.
+type DownloadFromBlobOptions struct {
+	// BlockSize specifies the block size to use for each parallel download; the default size is BlobDefaultDownloadBlockSize.
+	BlockSize int64
+
+	// Progress is a function that is invoked periodically as bytes are received.
+	Progress pipeline.ProgressReceiver
+
+	// AccessConditions indicates the access conditions used when making HTTP GET requests against the blob.
+	AccessConditions BlobAccessConditions
+
+	// Parallelism indicates the maximum number of blocks to download in parallel (0=default)
+	Parallelism uint16
+
+	// RetryReaderOptionsPerBlock is used when downloading each block.
+	RetryReaderOptionsPerBlock RetryReaderOptions
+}
+
+// downloadAzureFileToBuffer downloads an Azure file to a buffer with parallel.
+func downloadBlobToBuffer(ctx context.Context, blobURL BlobURL, offset int64, count int64,
+	ac BlobAccessConditions, b []byte, o DownloadFromBlobOptions,
+	initialDownloadResponse *DownloadResponse) error {
+	// Validate parameters, and set defaults.
+	if o.BlockSize < 0 {
+		panic("BlockSize option must be >= 0")
+	}
+	if o.BlockSize == 0 {
+		o.BlockSize = BlobDefaultDownloadBlockSize
+	}
+
+	if offset < 0 {
+		panic("offset option must be >= 0")
+	}
+
+	if count < 0 {
+		panic("count option must be >= 0")
+	}
+
+	if count == CountToEnd { // If size not specified, calculate it
+		if initialDownloadResponse != nil {
+			count = initialDownloadResponse.ContentLength() - offset // if we have the length, use it
+		} else {
+			// If we don't have the length at all, get it
+			dr, err := blobURL.Download(ctx, 0, CountToEnd, ac, false)
+			if err != nil {
+				return err
+			}
+			count = dr.ContentLength() - offset
+		}
+	}
+
+	if int64(len(b)) < count {
+		panic(fmt.Errorf("the buffer's size should be equal to or larger than the request count of bytes: %d", count))
+	}
+
+	// Prepare and do parallel download.
+	progress := int64(0)
+	progressLock := &sync.Mutex{}
+
+	err := doBatchTransfer(ctx, batchTransferOptions{
+		operationName: "downloadBlobToBuffer",
+		transferSize:    count,
+		chunkSize:     o.BlockSize,
+		parallelism:   o.Parallelism,
+		operation: func(chunkStart int64, count int64) error {
+			dr, err := blobURL.Download(ctx, chunkStart+ offset, count, ac, false)
+			body := dr.Body(o.RetryReaderOptionsPerBlock)
+			if o.Progress != nil {
+				rangeProgress := int64(0)
+				body = pipeline.NewResponseBodyProgress(
+					body,
+					func(bytesTransferred int64) {
+						diff := bytesTransferred - rangeProgress
+						rangeProgress = bytesTransferred
+						progressLock.Lock()
+						progress += diff
+						o.Progress(progress)
+						progressLock.Unlock()
+					})
+			}
+			_, err = io.ReadFull(body, b[chunkStart:chunkStart+count])
+			body.Close()
+			return err
+		},
+	})
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// DownloadAzureFileToBuffer downloads an Azure file to a buffer with parallel.
+// Offset and count are optional, pass 0 for both to download the entire blob.
+func DownloadBlobToBuffer(ctx context.Context, blobURL BlobURL, offset int64, count int64,
+	ac BlobAccessConditions, b []byte, o DownloadFromBlobOptions) error {
+	return downloadBlobToBuffer(ctx, blobURL, offset, count, ac, b, o, nil)
+}
+
+// DownloadBlobToFile downloads an Azure file to a local file.
+// The file would be truncated if the size doesn't match.
+// Offset and count are optional, pass 0 for both to download the entire blob.
+func DownloadBlobToFile(ctx context.Context, blobURL BlobURL, offset int64, count int64,
+	ac BlobAccessConditions, file *os.File, o DownloadFromBlobOptions) error {
+	// 1. Validate parameters.
+	if file == nil {
+		panic("file must not be nil")
+	}
+
+	// 2. Calculate the size of the destination file
+	var size int64
+
+	if count == CountToEnd {
+		// Try to get Azure file's size
+		props, err := blobURL.GetProperties(ctx, ac)
+		if err != nil {
+			return err
+		}
+		size = props.ContentLength() - offset
+	} else {
+		size = count
+	}
+
+	// 3. Compare and try to resize local file's size if it doesn't match Azure file's size.
+	stat, err := file.Stat()
+	if err != nil {
+		return err
+	}
+	if stat.Size() != size {
+		if err = file.Truncate(size); err != nil {
+			return err
+		}
+	}
+
+	if size > 0 {
+		// 4. Set mmap and call DownloadAzureFileToBuffer.
+		m, err := newMMF(file, true, 0, int(size))
+		if err != nil {
+			return err
+		}
+		defer m.unmap()
+		return downloadBlobToBuffer(ctx, blobURL, offset, size, ac, m, o, nil)
+	} else { // if the blob's size is 0, there is no need in downloading it
+		return nil
+	}
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+
+// BatchTransferOptions identifies options used by doBatchTransfer.
+type batchTransferOptions struct {
+	transferSize  int64
+	chunkSize     int64
+	parallelism   uint16
+	operation     func(offset int64, chunkSize int64) error
+	operationName string
+}
+
+// doBatchTransfer helps to execute operations in a batch manner.
+func doBatchTransfer(ctx context.Context, o batchTransferOptions) error {
+	// Prepare and do parallel operations.
+	numChunks := uint16(((o.transferSize - 1) / o.chunkSize) + 1)
+	operationChannel := make(chan func() error, o.parallelism) // Create the channel that release 'parallelism' goroutines concurrently
+	operationResponseChannel := make(chan error, numChunks)    // Holds each response
+	ctx, cancel := context.WithCancel(ctx)
+	defer cancel()
+
+	// Create the goroutines that process each operation (in parallel).
+	if o.parallelism == 0 {
+		o.parallelism = 5 // default parallelism
+	}
+	for g := uint16(0); g < o.parallelism; g++ {
+		//grIndex := g
+		go func() {
+			for f := range operationChannel {
+				//fmt.Printf("[%s] gr-%d start action\n", o.operationName, grIndex)
+				err := f()
+				operationResponseChannel <- err
+				//fmt.Printf("[%s] gr-%d end action\n", o.operationName, grIndex)
+			}
+		}()
+	}
+
+	// Add each chunk's operation to the channel.
+	for chunkNum := uint16(0); chunkNum < numChunks; chunkNum++ {
+		curChunkSize := o.chunkSize
+
+		if chunkNum == numChunks-1 { // Last chunk
+			curChunkSize = o.transferSize - (int64(chunkNum) * o.chunkSize) // Remove size of all transferred chunks from total
+		}
+		offset := int64(chunkNum) * o.chunkSize
+
+		operationChannel <- func() error {
+			return o.operation(offset, curChunkSize)
+		}
+	}
+	close(operationChannel)
+
+	// Wait for the operations to complete.
+	for chunkNum := uint16(0); chunkNum < numChunks; chunkNum++ {
+		responseError := <-operationResponseChannel
+		if responseError != nil {
+			cancel()             // As soon as any operation fails, cancel all remaining operation calls
+			return responseError // No need to process anymore responses
+		}
+	}
+	return nil
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////
+
+type UploadStreamToBlockBlobOptions struct {
+	BufferSize       int
+	MaxBuffers       int
+	BlobHTTPHeaders  BlobHTTPHeaders
+	Metadata         Metadata
+	AccessConditions BlobAccessConditions
+}
+
+func UploadStreamToBlockBlob(ctx context.Context, reader io.Reader, blockBlobURL BlockBlobURL,
+	o UploadStreamToBlockBlobOptions) (CommonResponse, error) {
+	result, err := uploadStream(ctx, reader,
+		UploadStreamOptions{BufferSize: o.BufferSize, MaxBuffers: o.MaxBuffers},
+		&uploadStreamToBlockBlobOptions{b: blockBlobURL, o: o, blockIDPrefix: newUUID()})
+	return result.(CommonResponse), err
+}
+
+type uploadStreamToBlockBlobOptions struct {
+	b             BlockBlobURL
+	o             UploadStreamToBlockBlobOptions
+	blockIDPrefix uuid   // UUID used with all blockIDs
+	maxBlockNum   uint32 // defaults to 0
+	firstBlock    []byte // Used only if maxBlockNum is 0
+}
+
+func (t *uploadStreamToBlockBlobOptions) start(ctx context.Context) (interface{}, error) {
+	return nil, nil
+}
+
+func (t *uploadStreamToBlockBlobOptions) chunk(ctx context.Context, num uint32, buffer []byte) error {
+	if num == 0 && len(buffer) < t.o.BufferSize {
+		// If whole payload fits in 1 block, don't stage it; End will upload it with 1 I/O operation
+		t.firstBlock = buffer
+		return nil
+	}
+	// Else, upload a staged block...
+	AtomicMorphUint32(&t.maxBlockNum, func(startVal uint32) (val uint32, morphResult interface{}) {
+		// Atomically remember (in t.numBlocks) the maximum block num we've ever seen
+		if startVal < num {
+			return num, nil
+		}
+		return startVal, nil
+	})
+	blockID := newUuidBlockID(t.blockIDPrefix).WithBlockNumber(num).ToBase64()
+	_, err := t.b.StageBlock(ctx, blockID, bytes.NewReader(buffer), LeaseAccessConditions{})
+	return err
+}
+
+func (t *uploadStreamToBlockBlobOptions) end(ctx context.Context) (interface{}, error) {
+	if t.maxBlockNum == 0 {
+		// If whole payload fits in 1 block (block #0), upload it with 1 I/O operation
+		return t.b.Upload(ctx, bytes.NewReader(t.firstBlock),
+			t.o.BlobHTTPHeaders, t.o.Metadata, t.o.AccessConditions)
+	}
+	// Multiple blocks staged, commit them all now
+	blockID := newUuidBlockID(t.blockIDPrefix)
+	blockIDs := make([]string, t.maxBlockNum + 1)
+	for bn := uint32(0); bn <= t.maxBlockNum; bn++ {
+		blockIDs[bn] = blockID.WithBlockNumber(bn).ToBase64()
+	}
+	return t.b.CommitBlockList(ctx, blockIDs, t.o.BlobHTTPHeaders, t.o.Metadata, t.o.AccessConditions)
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+type iTransfer interface {
+	start(ctx context.Context) (interface{}, error)
+	chunk(ctx context.Context, num uint32, buffer []byte) error
+	end(ctx context.Context) (interface{}, error)
+}
+
+type UploadStreamOptions struct {
+	MaxBuffers int
+	BufferSize int
+}
+
+func uploadStream(ctx context.Context, reader io.Reader, o UploadStreamOptions, t iTransfer) (interface{}, error) {
+	ctx, cancel := context.WithCancel(ctx) // New context so that any failure cancels everything
+	defer cancel()
+	wg := sync.WaitGroup{} // Used to know when all outgoing messages have finished processing
+	type OutgoingMsg struct {
+		chunkNum uint32
+		buffer   []byte
+	}
+
+	// Create a channel to hold the buffers usable for incoming datsa
+	incoming := make(chan []byte, o.MaxBuffers)
+	outgoing := make(chan OutgoingMsg, o.MaxBuffers) // Channel holding outgoing buffers
+	if result, err := t.start(ctx); err != nil {
+		return result, err
+	}
+
+	numBuffers := 0 // The number of buffers & out going goroutines created so far
+	injectBuffer := func() {
+		// For each Buffer, create it and a goroutine to upload it
+		incoming <- make([]byte, o.BufferSize) // Add the new buffer to the incoming channel so this goroutine can from the reader into it
+		numBuffers++
+		go func() {
+			for outgoingMsg := range outgoing {
+				// Upload the outgoing buffer
+				err := t.chunk(ctx, outgoingMsg.chunkNum, outgoingMsg.buffer)
+				wg.Done() // Indicate this buffer was sent
+				if nil != err {
+					cancel()
+				}
+				incoming <- outgoingMsg.buffer // The goroutine reading from the stream can use reuse this buffer now
+			}
+		}()
+	}
+	injectBuffer() // Create our 1st buffer & outgoing goroutine
+
+	// This goroutine grabs a buffer, reads from the stream into the buffer,
+	// and inserts the buffer into the outgoing channel to be uploaded
+	for c := uint32(0); true; c++ { // Iterate once per chunk
+		var buffer []byte
+		if numBuffers < o.MaxBuffers {
+			select {
+			// We're not at max buffers, see if a previously-created buffer is available
+			case buffer = <-incoming:
+				break
+			default:
+				// No buffer available; inject a new buffer & go routine to process it
+				injectBuffer()
+				buffer = <-incoming // Grab the just-injected buffer
+			}
+		} else {
+			// We are at max buffers, block until we get to reuse one
+			buffer = <-incoming
+		}
+		n, err := io.ReadFull(reader, buffer)
+		if err != nil {
+			buffer = buffer[:n] // Make slice match the # of read bytes
+		}
+		if len(buffer) > 0 {
+			// Buffer not empty, upload it
+			wg.Add(1) // We're posting a buffer to be sent
+			outgoing <- OutgoingMsg{chunkNum: c, buffer: buffer}
+		}
+		if err != nil { // The reader is done, no more outgoing buffers
+			break
+		}
+	}
+	// NOTE: Don't close the incoming channel because the outgoing goroutines post buffers into it when they are done
+	close(outgoing) // Make all the outgoing goroutines terminate when this channel is empty
+	wg.Wait()       // Wait for all pending outgoing messages to complete
+	// After all blocks uploaded, commit them to the blob & return the result
+	return t.end(ctx)
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/parsing_urls.go

@@ -0,0 +1,111 @@
+package azblob
+
+import (
+	"net/url"
+	"strings"
+)
+
+const (
+	snapshot           = "snapshot"
+	SnapshotTimeFormat = "2006-01-02T15:04:05.0000000Z07:00"
+)
+
+// A BlobURLParts object represents the components that make up an Azure Storage Container/Blob URL. You parse an
+// existing URL into its parts by calling NewBlobURLParts(). You construct a URL from parts by calling URL().
+// NOTE: Changing any SAS-related field requires computing a new SAS signature.
+type BlobURLParts struct {
+	Scheme         string // Ex: "https://"
+	Host           string // Ex: "account.blob.core.windows.net"
+	ContainerName  string // "" if no container
+	BlobName       string // "" if no blob
+	Snapshot       string // "" if not a snapshot
+	SAS            SASQueryParameters
+	UnparsedParams string
+}
+
+// NewBlobURLParts parses a URL initializing BlobURLParts' fields including any SAS-related & snapshot query parameters. Any other
+// query parameters remain in the UnparsedParams field. This method overwrites all fields in the BlobURLParts object.
+func NewBlobURLParts(u url.URL) BlobURLParts {
+	up := BlobURLParts{
+		Scheme: u.Scheme,
+		Host:   u.Host,
+	}
+
+	// Find the container & blob names (if any)
+	if u.Path != "" {
+		path := u.Path
+		if path[0] == '/' {
+			path = path[1:] // If path starts with a slash, remove it
+		}
+
+		// Find the next slash (if it exists)
+		containerEndIndex := strings.Index(path, "/")
+		if containerEndIndex == -1 { // Slash not found; path has container name & no blob name
+			up.ContainerName = path
+		} else {
+			up.ContainerName = path[:containerEndIndex] // The container name is the part between the slashes
+			up.BlobName = path[containerEndIndex+1:]    // The blob name is after the container slash
+		}
+	}
+
+	// Convert the query parameters to a case-sensitive map & trim whitespace
+	paramsMap := u.Query()
+
+	up.Snapshot = "" // Assume no snapshot
+	if snapshotStr, ok := caseInsensitiveValues(paramsMap).Get(snapshot); ok {
+		up.Snapshot = snapshotStr[0]
+		// If we recognized the query parameter, remove it from the map
+		delete(paramsMap, snapshot)
+	}
+	up.SAS = newSASQueryParameters(paramsMap, true)
+	up.UnparsedParams = paramsMap.Encode()
+	return up
+}
+
+type caseInsensitiveValues url.Values // map[string][]string
+func (values caseInsensitiveValues) Get(key string) ([]string, bool) {
+	key = strings.ToLower(key)
+	for k, v := range values {
+		if strings.ToLower(k) == key {
+			return v, true
+		}
+	}
+	return []string{}, false
+}
+
+// URL returns a URL object whose fields are initialized from the BlobURLParts fields. The URL's RawQuery
+// field contains the SAS, snapshot, and unparsed query parameters.
+func (up BlobURLParts) URL() url.URL {
+	path := ""
+	// Concatenate container & blob names (if they exist)
+	if up.ContainerName != "" {
+		path += "/" + up.ContainerName
+		if up.BlobName != "" {
+			path += "/" + up.BlobName
+		}
+	}
+
+	rawQuery := up.UnparsedParams
+
+	// Concatenate blob snapshot query parameter (if it exists)
+	if up.Snapshot != "" {
+		if len(rawQuery) > 0 {
+			rawQuery += "&"
+		}
+		rawQuery += snapshot + "=" + up.Snapshot
+	}
+	sas := up.SAS.Encode()
+	if sas != "" {
+		if len(rawQuery) > 0 {
+			rawQuery += "&"
+		}
+		rawQuery += sas
+	}
+	u := url.URL{
+		Scheme:   up.Scheme,
+		Host:     up.Host,
+		Path:     path,
+		RawQuery: rawQuery,
+	}
+	return u
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/sas_service.go

@@ -0,0 +1,206 @@
+package azblob
+
+import (
+	"bytes"
+	"fmt"
+	"strings"
+	"time"
+)
+
+// BlobSASSignatureValues is used to generate a Shared Access Signature (SAS) for an Azure Storage container or blob.
+type BlobSASSignatureValues struct {
+	Version            string      `param:"sv"`  // If not specified, this defaults to SASVersion
+	Protocol           SASProtocol `param:"spr"` // See the SASProtocol* constants
+	StartTime          time.Time   `param:"st"`  // Not specified if IsZero
+	ExpiryTime         time.Time   `param:"se"`  // Not specified if IsZero
+	Permissions        string      `param:"sp"`  // Create by initializing a ContainerSASPermissions or BlobSASPermissions and then call String()
+	IPRange            IPRange     `param:"sip"`
+	Identifier         string      `param:"si"`
+	ContainerName      string
+	BlobName           string // Use "" to create a Container SAS
+	CacheControl       string // rscc
+	ContentDisposition string // rscd
+	ContentEncoding    string // rsce
+	ContentLanguage    string // rscl
+	ContentType        string // rsct
+}
+
+// NewSASQueryParameters uses an account's shared key credential to sign this signature values to produce
+// the proper SAS query parameters.
+func (v BlobSASSignatureValues) NewSASQueryParameters(sharedKeyCredential *SharedKeyCredential) SASQueryParameters {
+	if sharedKeyCredential == nil {
+		panic("sharedKeyCredential can't be nil")
+	}
+
+	resource := "c"
+	if v.BlobName == "" {
+		// Make sure the permission characters are in the correct order
+		perms := &ContainerSASPermissions{}
+		if err := perms.Parse(v.Permissions); err != nil {
+			panic(err)
+		}
+		v.Permissions = perms.String()
+	} else {
+		resource = "b"
+		// Make sure the permission characters are in the correct order
+		perms := &BlobSASPermissions{}
+		if err := perms.Parse(v.Permissions); err != nil {
+			panic(err)
+		}
+		v.Permissions = perms.String()
+	}
+	if v.Version == "" {
+		v.Version = SASVersion
+	}
+	startTime, expiryTime := FormatTimesForSASSigning(v.StartTime, v.ExpiryTime)
+
+	// String to sign: http://msdn.microsoft.com/en-us/library/azure/dn140255.aspx
+	stringToSign := strings.Join([]string{
+		v.Permissions,
+		startTime,
+		expiryTime,
+		getCanonicalName(sharedKeyCredential.AccountName(), v.ContainerName, v.BlobName),
+		v.Identifier,
+		v.IPRange.String(),
+		string(v.Protocol),
+		v.Version,
+		v.CacheControl,       // rscc
+		v.ContentDisposition, // rscd
+		v.ContentEncoding,    // rsce
+		v.ContentLanguage,    // rscl
+		v.ContentType},       // rsct
+		"\n")
+	signature := sharedKeyCredential.ComputeHMACSHA256(stringToSign)
+
+	p := SASQueryParameters{
+		// Common SAS parameters
+		version:     v.Version,
+		protocol:    v.Protocol,
+		startTime:   v.StartTime,
+		expiryTime:  v.ExpiryTime,
+		permissions: v.Permissions,
+		ipRange:     v.IPRange,
+
+		// Container/Blob-specific SAS parameters
+		resource:   resource,
+		identifier: v.Identifier,
+
+		// Calculated SAS signature
+		signature: signature,
+	}
+	return p
+}
+
+// getCanonicalName computes the canonical name for a container or blob resource for SAS signing.
+func getCanonicalName(account string, containerName string, blobName string) string {
+	// Container: "/blob/account/containername"
+	// Blob:      "/blob/account/containername/blobname"
+	elements := []string{"/blob/", account, "/", containerName}
+	if blobName != "" {
+		elements = append(elements, "/", strings.Replace(blobName, "\\", "/", -1))
+	}
+	return strings.Join(elements, "")
+}
+
+// The ContainerSASPermissions type simplifies creating the permissions string for an Azure Storage container SAS.
+// Initialize an instance of this type and then call its String method to set BlobSASSignatureValues's Permissions field.
+type ContainerSASPermissions struct {
+	Read, Add, Create, Write, Delete, List bool
+}
+
+// String produces the SAS permissions string for an Azure Storage container.
+// Call this method to set BlobSASSignatureValues's Permissions field.
+func (p ContainerSASPermissions) String() string {
+	var b bytes.Buffer
+	if p.Read {
+		b.WriteRune('r')
+	}
+	if p.Add {
+		b.WriteRune('a')
+	}
+	if p.Create {
+		b.WriteRune('c')
+	}
+	if p.Write {
+		b.WriteRune('w')
+	}
+	if p.Delete {
+		b.WriteRune('d')
+	}
+	if p.List {
+		b.WriteRune('l')
+	}
+	return b.String()
+}
+
+// Parse initializes the ContainerSASPermissions's fields from a string.
+func (p *ContainerSASPermissions) Parse(s string) error {
+	*p = ContainerSASPermissions{} // Clear the flags
+	for _, r := range s {
+		switch r {
+		case 'r':
+			p.Read = true
+		case 'a':
+			p.Add = true
+		case 'c':
+			p.Create = true
+		case 'w':
+			p.Write = true
+		case 'd':
+			p.Delete = true
+		case 'l':
+			p.List = true
+		default:
+			return fmt.Errorf("Invalid permission: '%v'", r)
+		}
+	}
+	return nil
+}
+
+// The BlobSASPermissions type simplifies creating the permissions string for an Azure Storage blob SAS.
+// Initialize an instance of this type and then call its String method to set BlobSASSignatureValues's Permissions field.
+type BlobSASPermissions struct{ Read, Add, Create, Write, Delete bool }
+
+// String produces the SAS permissions string for an Azure Storage blob.
+// Call this method to set BlobSASSignatureValues's Permissions field.
+func (p BlobSASPermissions) String() string {
+	var b bytes.Buffer
+	if p.Read {
+		b.WriteRune('r')
+	}
+	if p.Add {
+		b.WriteRune('a')
+	}
+	if p.Create {
+		b.WriteRune('c')
+	}
+	if p.Write {
+		b.WriteRune('w')
+	}
+	if p.Delete {
+		b.WriteRune('d')
+	}
+	return b.String()
+}
+
+// Parse initializes the BlobSASPermissions's fields from a string.
+func (p *BlobSASPermissions) Parse(s string) error {
+	*p = BlobSASPermissions{} // Clear the flags
+	for _, r := range s {
+		switch r {
+		case 'r':
+			p.Read = true
+		case 'a':
+			p.Add = true
+		case 'c':
+			p.Create = true
+		case 'w':
+			p.Write = true
+		case 'd':
+			p.Delete = true
+		default:
+			return fmt.Errorf("Invalid permission: '%v'", r)
+		}
+	}
+	return nil
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/service_codes_blob.go

@@ -0,0 +1,195 @@
+package azblob
+
+// https://docs.microsoft.com/en-us/rest/api/storageservices/blob-service-error-codes
+
+// ServiceCode values indicate a service failure.
+const (
+	// ServiceCodeAppendPositionConditionNotMet means the append position condition specified was not met.
+	ServiceCodeAppendPositionConditionNotMet ServiceCodeType = "AppendPositionConditionNotMet"
+
+	// ServiceCodeBlobAlreadyExists means the specified blob already exists.
+	ServiceCodeBlobAlreadyExists ServiceCodeType = "BlobAlreadyExists"
+
+	// ServiceCodeBlobNotFound means the specified blob does not exist.
+	ServiceCodeBlobNotFound ServiceCodeType = "BlobNotFound"
+
+	// ServiceCodeBlobOverwritten means the blob has been recreated since the previous snapshot was taken.
+	ServiceCodeBlobOverwritten ServiceCodeType = "BlobOverwritten"
+
+	// ServiceCodeBlobTierInadequateForContentLength means the specified blob tier size limit cannot be less than content length.
+	ServiceCodeBlobTierInadequateForContentLength ServiceCodeType = "BlobTierInadequateForContentLength"
+
+	// ServiceCodeBlockCountExceedsLimit means the committed block count cannot exceed the maximum limit of 50,000 blocks
+	// or that the uncommitted block count cannot exceed the maximum limit of 100,000 blocks.
+	ServiceCodeBlockCountExceedsLimit ServiceCodeType = "BlockCountExceedsLimit"
+
+	// ServiceCodeBlockListTooLong means the block list may not contain more than 50,000 blocks.
+	ServiceCodeBlockListTooLong ServiceCodeType = "BlockListTooLong"
+
+	// ServiceCodeCannotChangeToLowerTier means that a higher blob tier has already been explicitly set.
+	ServiceCodeCannotChangeToLowerTier ServiceCodeType = "CannotChangeToLowerTier"
+
+	// ServiceCodeCannotVerifyCopySource means that the service could not verify the copy source within the specified time.
+	// Examine the HTTP status code and message for more information about the failure.
+	ServiceCodeCannotVerifyCopySource ServiceCodeType = "CannotVerifyCopySource"
+
+	// ServiceCodeContainerAlreadyExists means the specified container already exists.
+	ServiceCodeContainerAlreadyExists ServiceCodeType = "ContainerAlreadyExists"
+
+	// ServiceCodeContainerBeingDeleted means the specified container is being deleted.
+	ServiceCodeContainerBeingDeleted ServiceCodeType = "ContainerBeingDeleted"
+
+	// ServiceCodeContainerDisabled means the specified container has been disabled by the administrator.
+	ServiceCodeContainerDisabled ServiceCodeType = "ContainerDisabled"
+
+	// ServiceCodeContainerNotFound means the specified container does not exist.
+	ServiceCodeContainerNotFound ServiceCodeType = "ContainerNotFound"
+
+	// ServiceCodeContentLengthLargerThanTierLimit means the blob's content length cannot exceed its tier limit.
+	ServiceCodeContentLengthLargerThanTierLimit ServiceCodeType = "ContentLengthLargerThanTierLimit"
+
+	// ServiceCodeCopyAcrossAccountsNotSupported means the copy source account and destination account must be the same.
+	ServiceCodeCopyAcrossAccountsNotSupported ServiceCodeType = "CopyAcrossAccountsNotSupported"
+
+	// ServiceCodeCopyIDMismatch means the specified copy ID did not match the copy ID for the pending copy operation.
+	ServiceCodeCopyIDMismatch ServiceCodeType = "CopyIdMismatch"
+
+	// ServiceCodeFeatureVersionMismatch means the type of blob in the container is unrecognized by this version or
+	// that the operation for AppendBlob requires at least version 2015-02-21.
+	ServiceCodeFeatureVersionMismatch ServiceCodeType = "FeatureVersionMismatch"
+
+	// ServiceCodeIncrementalCopyBlobMismatch means the specified source blob is different than the copy source of the existing incremental copy blob.
+	ServiceCodeIncrementalCopyBlobMismatch ServiceCodeType = "IncrementalCopyBlobMismatch"
+
+	// ServiceCodeIncrementalCopyOfEralierVersionSnapshotNotAllowed means the specified snapshot is earlier than the last snapshot copied into the incremental copy blob.
+	ServiceCodeIncrementalCopyOfEralierVersionSnapshotNotAllowed ServiceCodeType = "IncrementalCopyOfEralierVersionSnapshotNotAllowed"
+
+	// ServiceCodeIncrementalCopySourceMustBeSnapshot means the source for incremental copy request must be a snapshot.
+	ServiceCodeIncrementalCopySourceMustBeSnapshot ServiceCodeType = "IncrementalCopySourceMustBeSnapshot"
+
+	// ServiceCodeInfiniteLeaseDurationRequired means the lease ID matched, but the specified lease must be an infinite-duration lease.
+	ServiceCodeInfiniteLeaseDurationRequired ServiceCodeType = "InfiniteLeaseDurationRequired"
+
+	// ServiceCodeInvalidBlobOrBlock means the specified blob or block content is invalid.
+	ServiceCodeInvalidBlobOrBlock ServiceCodeType = "InvalidBlobOrBlock"
+
+	// ServiceCodeInvalidBlobType means the blob type is invalid for this operation.
+	ServiceCodeInvalidBlobType ServiceCodeType = "InvalidBlobType"
+
+	// ServiceCodeInvalidBlockID means the specified block ID is invalid. The block ID must be Base64-encoded.
+	ServiceCodeInvalidBlockID ServiceCodeType = "InvalidBlockId"
+
+	// ServiceCodeInvalidBlockList means the specified block list is invalid.
+	ServiceCodeInvalidBlockList ServiceCodeType = "InvalidBlockList"
+
+	// ServiceCodeInvalidOperation means an invalid operation against a blob snapshot.
+	ServiceCodeInvalidOperation ServiceCodeType = "InvalidOperation"
+
+	// ServiceCodeInvalidPageRange means the page range specified is invalid.
+	ServiceCodeInvalidPageRange ServiceCodeType = "InvalidPageRange"
+
+	// ServiceCodeInvalidSourceBlobType means the copy source blob type is invalid for this operation.
+	ServiceCodeInvalidSourceBlobType ServiceCodeType = "InvalidSourceBlobType"
+
+	// ServiceCodeInvalidSourceBlobURL means the source URL for incremental copy request must be valid Azure Storage blob URL.
+	ServiceCodeInvalidSourceBlobURL ServiceCodeType = "InvalidSourceBlobUrl"
+
+	// ServiceCodeInvalidVersionForPageBlobOperation means that all operations on page blobs require at least version 2009-09-19.
+	ServiceCodeInvalidVersionForPageBlobOperation ServiceCodeType = "InvalidVersionForPageBlobOperation"
+
+	// ServiceCodeLeaseAlreadyPresent means there is already a lease present.
+	ServiceCodeLeaseAlreadyPresent ServiceCodeType = "LeaseAlreadyPresent"
+
+	// ServiceCodeLeaseAlreadyBroken means the lease has already been broken and cannot be broken again.
+	ServiceCodeLeaseAlreadyBroken ServiceCodeType = "LeaseAlreadyBroken"
+
+	// ServiceCodeLeaseIDMismatchWithBlobOperation means the lease ID specified did not match the lease ID for the blob.
+	ServiceCodeLeaseIDMismatchWithBlobOperation ServiceCodeType = "LeaseIdMismatchWithBlobOperation"
+
+	// ServiceCodeLeaseIDMismatchWithContainerOperation means the lease ID specified did not match the lease ID for the container.
+	ServiceCodeLeaseIDMismatchWithContainerOperation ServiceCodeType = "LeaseIdMismatchWithContainerOperation"
+
+	// ServiceCodeLeaseIDMismatchWithLeaseOperation means the lease ID specified did not match the lease ID for the blob/container.
+	ServiceCodeLeaseIDMismatchWithLeaseOperation ServiceCodeType = "LeaseIdMismatchWithLeaseOperation"
+
+	// ServiceCodeLeaseIDMissing means there is currently a lease on the blob/container and no lease ID was specified in the request.
+	ServiceCodeLeaseIDMissing ServiceCodeType = "LeaseIdMissing"
+
+	// ServiceCodeLeaseIsBreakingAndCannotBeAcquired means the lease ID matched, but the lease is currently in breaking state and cannot be acquired until it is broken.
+	ServiceCodeLeaseIsBreakingAndCannotBeAcquired ServiceCodeType = "LeaseIsBreakingAndCannotBeAcquired"
+
+	// ServiceCodeLeaseIsBreakingAndCannotBeChanged means the lease ID matched, but the lease is currently in breaking state and cannot be changed.
+	ServiceCodeLeaseIsBreakingAndCannotBeChanged ServiceCodeType = "LeaseIsBreakingAndCannotBeChanged"
+
+	// ServiceCodeLeaseIsBrokenAndCannotBeRenewed means the lease ID matched, but the lease has been broken explicitly and cannot be renewed.
+	ServiceCodeLeaseIsBrokenAndCannotBeRenewed ServiceCodeType = "LeaseIsBrokenAndCannotBeRenewed"
+
+	// ServiceCodeLeaseLost means a lease ID was specified, but the lease for the blob/container has expired.
+	ServiceCodeLeaseLost ServiceCodeType = "LeaseLost"
+
+	// ServiceCodeLeaseNotPresentWithBlobOperation means there is currently no lease on the blob.
+	ServiceCodeLeaseNotPresentWithBlobOperation ServiceCodeType = "LeaseNotPresentWithBlobOperation"
+
+	// ServiceCodeLeaseNotPresentWithContainerOperation means there is currently no lease on the container.
+	ServiceCodeLeaseNotPresentWithContainerOperation ServiceCodeType = "LeaseNotPresentWithContainerOperation"
+
+	// ServiceCodeLeaseNotPresentWithLeaseOperation means there is currently no lease on the blob/container.
+	ServiceCodeLeaseNotPresentWithLeaseOperation ServiceCodeType = "LeaseNotPresentWithLeaseOperation"
+
+	// ServiceCodeMaxBlobSizeConditionNotMet means the max blob size condition specified was not met.
+	ServiceCodeMaxBlobSizeConditionNotMet ServiceCodeType = "MaxBlobSizeConditionNotMet"
+
+	// ServiceCodeNoPendingCopyOperation means there is currently no pending copy operation.
+	ServiceCodeNoPendingCopyOperation ServiceCodeType = "NoPendingCopyOperation"
+
+	// ServiceCodeOperationNotAllowedOnIncrementalCopyBlob means the specified operation is not allowed on an incremental copy blob.
+	ServiceCodeOperationNotAllowedOnIncrementalCopyBlob ServiceCodeType = "OperationNotAllowedOnIncrementalCopyBlob"
+
+	// ServiceCodePendingCopyOperation means there is currently a pending copy operation.
+	ServiceCodePendingCopyOperation ServiceCodeType = "PendingCopyOperation"
+
+	// ServiceCodePreviousSnapshotCannotBeNewer means the prevsnapshot query parameter value cannot be newer than snapshot query parameter value.
+	ServiceCodePreviousSnapshotCannotBeNewer ServiceCodeType = "PreviousSnapshotCannotBeNewer"
+
+	// ServiceCodePreviousSnapshotNotFound means the previous snapshot is not found.
+	ServiceCodePreviousSnapshotNotFound ServiceCodeType = "PreviousSnapshotNotFound"
+
+	// ServiceCodePreviousSnapshotOperationNotSupported means that differential Get Page Ranges is not supported on the previous snapshot.
+	ServiceCodePreviousSnapshotOperationNotSupported ServiceCodeType = "PreviousSnapshotOperationNotSupported"
+
+	// ServiceCodeSequenceNumberConditionNotMet means the sequence number condition specified was not met.
+	ServiceCodeSequenceNumberConditionNotMet ServiceCodeType = "SequenceNumberConditionNotMet"
+
+	// ServiceCodeSequenceNumberIncrementTooLarge means the sequence number increment cannot be performed because it would result in overflow of the sequence number.
+	ServiceCodeSequenceNumberIncrementTooLarge ServiceCodeType = "SequenceNumberIncrementTooLarge"
+
+	// ServiceCodeSnapshotCountExceeded means the snapshot count against this blob has been exceeded.
+	ServiceCodeSnapshotCountExceeded ServiceCodeType = "SnapshotCountExceeded"
+
+	// ServiceCodeSnaphotOperationRateExceeded means the rate of snapshot operations against this blob has been exceeded.
+	ServiceCodeSnaphotOperationRateExceeded ServiceCodeType = "SnaphotOperationRateExceeded"
+
+	// ServiceCodeSnapshotsPresent means this operation is not permitted while the blob has snapshots.
+	ServiceCodeSnapshotsPresent ServiceCodeType = "SnapshotsPresent"
+
+	// ServiceCodeSourceConditionNotMet means the source condition specified using HTTP conditional header(s) is not met.
+	ServiceCodeSourceConditionNotMet ServiceCodeType = "SourceConditionNotMet"
+
+	// ServiceCodeSystemInUse means this blob is in use by the system.
+	ServiceCodeSystemInUse ServiceCodeType = "SystemInUse"
+
+	// ServiceCodeTargetConditionNotMet means the target condition specified using HTTP conditional header(s) is not met.
+	ServiceCodeTargetConditionNotMet ServiceCodeType = "TargetConditionNotMet"
+
+	// ServiceCodeUnauthorizedBlobOverwrite means this request is not authorized to perform blob overwrites.
+	ServiceCodeUnauthorizedBlobOverwrite ServiceCodeType = "UnauthorizedBlobOverwrite"
+
+	// ServiceCodeBlobBeingRehydrated means this operation is not permitted because the blob is being rehydrated.
+	ServiceCodeBlobBeingRehydrated ServiceCodeType = "BlobBeingRehydrated"
+
+	// ServiceCodeBlobArchived means this operation is not permitted on an archived blob.
+	ServiceCodeBlobArchived ServiceCodeType = "BlobArchived"
+
+	// ServiceCodeBlobNotArchived means this blob is currently not in the archived state.
+	ServiceCodeBlobNotArchived ServiceCodeType = "BlobNotArchived"
+)

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/url_append_blob.go

@@ -0,0 +1,112 @@
+package azblob
+
+import (
+	"context"
+	"io"
+	"net/url"
+
+	"github.com/Azure/azure-pipeline-go/pipeline"
+)
+
+const (
+	// AppendBlobMaxAppendBlockBytes indicates the maximum number of bytes that can be sent in a call to AppendBlock.
+	AppendBlobMaxAppendBlockBytes = 4 * 1024 * 1024 // 4MB
+
+	// AppendBlobMaxBlocks indicates the maximum number of blocks allowed in an append blob.
+	AppendBlobMaxBlocks = 50000
+)
+
+// AppendBlobURL defines a set of operations applicable to append blobs.
+type AppendBlobURL struct {
+	BlobURL
+	abClient appendBlobClient
+}
+
+// NewAppendBlobURL creates an AppendBlobURL object using the specified URL and request policy pipeline.
+func NewAppendBlobURL(url url.URL, p pipeline.Pipeline) AppendBlobURL {
+	blobClient := newBlobClient(url, p)
+	abClient := newAppendBlobClient(url, p)
+	return AppendBlobURL{BlobURL: BlobURL{blobClient: blobClient}, abClient: abClient}
+}
+
+// WithPipeline creates a new AppendBlobURL object identical to the source but with the specific request policy pipeline.
+func (ab AppendBlobURL) WithPipeline(p pipeline.Pipeline) AppendBlobURL {
+	return NewAppendBlobURL(ab.blobClient.URL(), p)
+}
+
+// WithSnapshot creates a new AppendBlobURL object identical to the source but with the specified snapshot timestamp.
+// Pass "" to remove the snapshot returning a URL to the base blob.
+func (ab AppendBlobURL) WithSnapshot(snapshot string) AppendBlobURL {
+	p := NewBlobURLParts(ab.URL())
+	p.Snapshot = snapshot
+	return NewAppendBlobURL(p.URL(), ab.blobClient.Pipeline())
+}
+
+// Create creates a 0-length append blob. Call AppendBlock to append data to an append blob.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/put-blob.
+func (ab AppendBlobURL) Create(ctx context.Context, h BlobHTTPHeaders, metadata Metadata, ac BlobAccessConditions) (*AppendBlobCreateResponse, error) {
+	ifModifiedSince, ifUnmodifiedSince, ifMatch, ifNoneMatch := ac.HTTPAccessConditions.pointers()
+	return ab.abClient.Create(ctx, 0, nil,
+		&h.ContentType, &h.ContentEncoding, &h.ContentLanguage, h.ContentMD5,
+		&h.CacheControl, metadata, ac.LeaseAccessConditions.pointers(), &h.ContentDisposition,
+		ifModifiedSince, ifUnmodifiedSince, ifMatch, ifNoneMatch, nil)
+}
+
+// AppendBlock writes a stream to a new block of data to the end of the existing append blob.
+// This method panics if the stream is not at position 0.
+// Note that the http client closes the body stream after the request is sent to the service.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/append-block.
+func (ab AppendBlobURL) AppendBlock(ctx context.Context, body io.ReadSeeker, ac BlobAccessConditions) (*AppendBlobAppendBlockResponse, error) {
+	ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag := ac.HTTPAccessConditions.pointers()
+	ifAppendPositionEqual, ifMaxSizeLessThanOrEqual := ac.AppendBlobAccessConditions.pointers()
+	return ab.abClient.AppendBlock(ctx, body, validateSeekableStreamAt0AndGetCount(body), nil,
+		ac.LeaseAccessConditions.pointers(),
+		ifMaxSizeLessThanOrEqual, ifAppendPositionEqual,
+		ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag, nil)
+}
+
+// AppendBlobAccessConditions identifies append blob-specific access conditions which you optionally set.
+type AppendBlobAccessConditions struct {
+	// IfAppendPositionEqual ensures that the AppendBlock operation succeeds
+	// only if the append position is equal to a value.
+	// IfAppendPositionEqual=0 means no 'IfAppendPositionEqual' header specified.
+	// IfAppendPositionEqual>0 means 'IfAppendPositionEqual' header specified with its value
+	// IfAppendPositionEqual==-1 means IfAppendPositionEqual' header specified with a value of 0
+	IfAppendPositionEqual int64
+
+	// IfMaxSizeLessThanOrEqual ensures that the AppendBlock operation succeeds
+	// only if the append blob's size is less than or equal to a value.
+	// IfMaxSizeLessThanOrEqual=0 means no 'IfMaxSizeLessThanOrEqual' header specified.
+	// IfMaxSizeLessThanOrEqual>0 means 'IfMaxSizeLessThanOrEqual' header specified with its value
+	// IfMaxSizeLessThanOrEqual==-1 means 'IfMaxSizeLessThanOrEqual' header specified with a value of 0
+	IfMaxSizeLessThanOrEqual int64
+}
+
+// pointers is for internal infrastructure. It returns the fields as pointers.
+func (ac AppendBlobAccessConditions) pointers() (iape *int64, imsltoe *int64) {
+	if ac.IfAppendPositionEqual < -1 {
+		panic("IfAppendPositionEqual can't be less than -1")
+	}
+	if ac.IfMaxSizeLessThanOrEqual < -1 {
+		panic("IfMaxSizeLessThanOrEqual can't be less than -1")
+	}
+	var zero int64 // defaults to 0
+	switch ac.IfAppendPositionEqual {
+	case -1:
+		iape = &zero
+	case 0:
+		iape = nil
+	default:
+		iape = &ac.IfAppendPositionEqual
+	}
+
+	switch ac.IfMaxSizeLessThanOrEqual {
+	case -1:
+		imsltoe = &zero
+	case 0:
+		imsltoe = nil
+	default:
+		imsltoe = &ac.IfMaxSizeLessThanOrEqual
+	}
+	return
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/url_blob.go

@@ -0,0 +1,222 @@
+package azblob
+
+import (
+	"context"
+	"net/url"
+
+	"github.com/Azure/azure-pipeline-go/pipeline"
+)
+
+// A BlobURL represents a URL to an Azure Storage blob; the blob may be a block blob, append blob, or page blob.
+type BlobURL struct {
+	blobClient blobClient
+}
+
+// NewBlobURL creates a BlobURL object using the specified URL and request policy pipeline.
+func NewBlobURL(url url.URL, p pipeline.Pipeline) BlobURL {
+	if p == nil {
+		panic("p can't be nil")
+	}
+	blobClient := newBlobClient(url, p)
+	return BlobURL{blobClient: blobClient}
+}
+
+// URL returns the URL endpoint used by the BlobURL object.
+func (b BlobURL) URL() url.URL {
+	return b.blobClient.URL()
+}
+
+// String returns the URL as a string.
+func (b BlobURL) String() string {
+	u := b.URL()
+	return u.String()
+}
+
+// WithPipeline creates a new BlobURL object identical to the source but with the specified request policy pipeline.
+func (b BlobURL) WithPipeline(p pipeline.Pipeline) BlobURL {
+	if p == nil {
+		panic("p can't be nil")
+	}
+	return NewBlobURL(b.blobClient.URL(), p)
+}
+
+// WithSnapshot creates a new BlobURL object identical to the source but with the specified snapshot timestamp.
+// Pass "" to remove the snapshot returning a URL to the base blob.
+func (b BlobURL) WithSnapshot(snapshot string) BlobURL {
+	p := NewBlobURLParts(b.URL())
+	p.Snapshot = snapshot
+	return NewBlobURL(p.URL(), b.blobClient.Pipeline())
+}
+
+// ToAppendBlobURL creates an AppendBlobURL using the source's URL and pipeline.
+func (b BlobURL) ToAppendBlobURL() AppendBlobURL {
+	return NewAppendBlobURL(b.URL(), b.blobClient.Pipeline())
+}
+
+// ToBlockBlobURL creates a BlockBlobURL using the source's URL and pipeline.
+func (b BlobURL) ToBlockBlobURL() BlockBlobURL {
+	return NewBlockBlobURL(b.URL(), b.blobClient.Pipeline())
+}
+
+// ToPageBlobURL creates a PageBlobURL using the source's URL and pipeline.
+func (b BlobURL) ToPageBlobURL() PageBlobURL {
+	return NewPageBlobURL(b.URL(), b.blobClient.Pipeline())
+}
+
+// DownloadBlob reads a range of bytes from a blob. The response also includes the blob's properties and metadata.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/get-blob.
+func (b BlobURL) Download(ctx context.Context, offset int64, count int64, ac BlobAccessConditions, rangeGetContentMD5 bool) (*DownloadResponse, error) {
+	var xRangeGetContentMD5 *bool
+	if rangeGetContentMD5 {
+		xRangeGetContentMD5 = &rangeGetContentMD5
+	}
+	ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag := ac.HTTPAccessConditions.pointers()
+	dr, err := b.blobClient.Download(ctx, nil, nil,
+		httpRange{offset: offset, count: count}.pointers(),
+		ac.LeaseAccessConditions.pointers(), xRangeGetContentMD5,
+		ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag, nil)
+	if err != nil {
+		return nil, err
+	}
+	return &DownloadResponse{
+		b:       b,
+		r:       dr,
+		ctx:     ctx,
+		getInfo: HTTPGetterInfo{Offset: offset, Count: count, ETag: dr.ETag()},
+	}, err
+}
+
+// DeleteBlob marks the specified blob or snapshot for deletion. The blob is later deleted during garbage collection.
+// Note that deleting a blob also deletes all its snapshots.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/delete-blob.
+func (b BlobURL) Delete(ctx context.Context, deleteOptions DeleteSnapshotsOptionType, ac BlobAccessConditions) (*BlobDeleteResponse, error) {
+	ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag := ac.HTTPAccessConditions.pointers()
+	return b.blobClient.Delete(ctx, nil, nil, ac.LeaseAccessConditions.pointers(), deleteOptions,
+		ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag, nil)
+}
+
+// Undelete restores the contents and metadata of a soft-deleted blob and any associated soft-deleted snapshots.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/undelete-blob.
+func (b BlobURL) Undelete(ctx context.Context) (*BlobUndeleteResponse, error) {
+	return b.blobClient.Undelete(ctx, nil, nil)
+}
+
+// SetTier operation sets the tier on a blob. The operation is allowed on a page
+// blob in a premium storage account and on a block blob in a blob storage account (locally
+// redundant storage only). A premium page blob's tier determines the allowed size, IOPS, and
+// bandwidth of the blob. A block blob's tier determines Hot/Cool/Archive storage type. This operation
+// does not update the blob's ETag.
+// For detailed information about block blob level tiering see https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blob-storage-tiers.
+func (b BlobURL) SetTier(ctx context.Context, tier AccessTierType) (*BlobSetTierResponse, error) {
+	return b.blobClient.SetTier(ctx, tier, nil, nil)
+}
+
+// GetBlobProperties returns the blob's properties.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/get-blob-properties.
+func (b BlobURL) GetProperties(ctx context.Context, ac BlobAccessConditions) (*BlobGetPropertiesResponse, error) {
+	ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag := ac.HTTPAccessConditions.pointers()
+	return b.blobClient.GetProperties(ctx, nil, nil, ac.LeaseAccessConditions.pointers(),
+		ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag, nil)
+}
+
+// SetBlobHTTPHeaders changes a blob's HTTP headers.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/set-blob-properties.
+func (b BlobURL) SetHTTPHeaders(ctx context.Context, h BlobHTTPHeaders, ac BlobAccessConditions) (*BlobSetHTTPHeadersResponse, error) {
+	ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag := ac.HTTPAccessConditions.pointers()
+	return b.blobClient.SetHTTPHeaders(ctx, nil,
+		&h.CacheControl, &h.ContentType, h.ContentMD5, &h.ContentEncoding, &h.ContentLanguage,
+		ac.LeaseAccessConditions.pointers(), ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag,
+		&h.ContentDisposition, nil)
+}
+
+// SetBlobMetadata changes a blob's metadata.
+// https://docs.microsoft.com/rest/api/storageservices/set-blob-metadata.
+func (b BlobURL) SetMetadata(ctx context.Context, metadata Metadata, ac BlobAccessConditions) (*BlobSetMetadataResponse, error) {
+	ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag := ac.HTTPAccessConditions.pointers()
+	return b.blobClient.SetMetadata(ctx, nil, metadata, ac.LeaseAccessConditions.pointers(),
+		ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag, nil)
+}
+
+// CreateSnapshot creates a read-only snapshot of a blob.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/snapshot-blob.
+func (b BlobURL) CreateSnapshot(ctx context.Context, metadata Metadata, ac BlobAccessConditions) (*BlobCreateSnapshotResponse, error) {
+	// CreateSnapshot does NOT panic if the user tries to create a snapshot using a URL that already has a snapshot query parameter
+	// because checking this would be a performance hit for a VERY unusual path and I don't think the common case should suffer this
+	// performance hit.
+	ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag := ac.HTTPAccessConditions.pointers()
+	return b.blobClient.CreateSnapshot(ctx, nil, metadata, ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag, ac.LeaseAccessConditions.pointers(), nil)
+}
+
+// AcquireLease acquires a lease on the blob for write and delete operations. The lease duration must be between
+// 15 to 60 seconds, or infinite (-1).
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/lease-blob.
+func (b BlobURL) AcquireLease(ctx context.Context, proposedID string, duration int32, ac HTTPAccessConditions) (*BlobAcquireLeaseResponse, error) {
+	ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag := ac.pointers()
+	return b.blobClient.AcquireLease(ctx, nil, &duration, &proposedID,
+		ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag, nil)
+}
+
+// RenewLease renews the blob's previously-acquired lease.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/lease-blob.
+func (b BlobURL) RenewLease(ctx context.Context, leaseID string, ac HTTPAccessConditions) (*BlobRenewLeaseResponse, error) {
+	ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag := ac.pointers()
+	return b.blobClient.RenewLease(ctx, leaseID, nil,
+		ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag, nil)
+}
+
+// ReleaseLease releases the blob's previously-acquired lease.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/lease-blob.
+func (b BlobURL) ReleaseLease(ctx context.Context, leaseID string, ac HTTPAccessConditions) (*BlobReleaseLeaseResponse, error) {
+	ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag := ac.pointers()
+	return b.blobClient.ReleaseLease(ctx, leaseID, nil,
+		ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag, nil)
+}
+
+// BreakLease breaks the blob's previously-acquired lease (if it exists). Pass the LeaseBreakDefault (-1)
+// constant to break a fixed-duration lease when it expires or an infinite lease immediately.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/lease-blob.
+func (b BlobURL) BreakLease(ctx context.Context, breakPeriodInSeconds int32, ac HTTPAccessConditions) (*BlobBreakLeaseResponse, error) {
+	ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag := ac.pointers()
+	return b.blobClient.BreakLease(ctx, nil, leasePeriodPointer(breakPeriodInSeconds),
+		ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag, nil)
+}
+
+// ChangeLease changes the blob's lease ID.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/lease-blob.
+func (b BlobURL) ChangeLease(ctx context.Context, leaseID string, proposedID string, ac HTTPAccessConditions) (*BlobChangeLeaseResponse, error) {
+	ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag := ac.pointers()
+	return b.blobClient.ChangeLease(ctx, leaseID, proposedID,
+		nil, ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag, nil)
+}
+
+// LeaseBreakNaturally tells ContainerURL's or BlobURL's BreakLease method to break the lease using service semantics.
+const LeaseBreakNaturally = -1
+
+func leasePeriodPointer(period int32) (p *int32) {
+	if period != LeaseBreakNaturally {
+		p = &period
+	}
+	return nil
+}
+
+// StartCopyFromURL copies the data at the source URL to a blob.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/copy-blob.
+func (b BlobURL) StartCopyFromURL(ctx context.Context, source url.URL, metadata Metadata, srcac BlobAccessConditions, dstac BlobAccessConditions) (*BlobStartCopyFromURLResponse, error) {
+	srcIfModifiedSince, srcIfUnmodifiedSince, srcIfMatchETag, srcIfNoneMatchETag := srcac.HTTPAccessConditions.pointers()
+	dstIfModifiedSince, dstIfUnmodifiedSince, dstIfMatchETag, dstIfNoneMatchETag := dstac.HTTPAccessConditions.pointers()
+	srcLeaseID := srcac.LeaseAccessConditions.pointers()
+	dstLeaseID := dstac.LeaseAccessConditions.pointers()
+
+	return b.blobClient.StartCopyFromURL(ctx, source.String(), nil, metadata,
+		srcIfModifiedSince, srcIfUnmodifiedSince,
+		srcIfMatchETag, srcIfNoneMatchETag,
+		dstIfModifiedSince, dstIfUnmodifiedSince,
+		dstIfMatchETag, dstIfNoneMatchETag,
+		dstLeaseID, srcLeaseID, nil)
+}
+
+// AbortCopyFromURL stops a pending copy that was previously started and leaves a destination blob with 0 length and metadata.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/abort-copy-blob.
+func (b BlobURL) AbortCopyFromURL(ctx context.Context, copyID string, ac LeaseAccessConditions) (*BlobAbortCopyFromURLResponse, error) {
+	return b.blobClient.AbortCopyFromURL(ctx, copyID, nil, ac.pointers(), nil)
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/url_block_blob.go

@@ -0,0 +1,157 @@
+package azblob
+
+import (
+	"context"
+	"io"
+	"net/url"
+
+	"encoding/base64"
+	"encoding/binary"
+
+	"github.com/Azure/azure-pipeline-go/pipeline"
+)
+
+const (
+	// BlockBlobMaxPutBlobBytes indicates the maximum number of bytes that can be sent in a call to Upload.
+	BlockBlobMaxUploadBlobBytes = 256 * 1024 * 1024 // 256MB
+
+	// BlockBlobMaxStageBlockBytes indicates the maximum number of bytes that can be sent in a call to StageBlock.
+	BlockBlobMaxStageBlockBytes = 100 * 1024 * 1024 // 100MB
+
+	// BlockBlobMaxBlocks indicates the maximum number of blocks allowed in a block blob.
+	BlockBlobMaxBlocks = 50000
+)
+
+// BlockBlobURL defines a set of operations applicable to block blobs.
+type BlockBlobURL struct {
+	BlobURL
+	bbClient blockBlobClient
+}
+
+// NewBlockBlobURL creates a BlockBlobURL object using the specified URL and request policy pipeline.
+func NewBlockBlobURL(url url.URL, p pipeline.Pipeline) BlockBlobURL {
+	if p == nil {
+		panic("p can't be nil")
+	}
+	blobClient := newBlobClient(url, p)
+	bbClient := newBlockBlobClient(url, p)
+	return BlockBlobURL{BlobURL: BlobURL{blobClient: blobClient}, bbClient: bbClient}
+}
+
+// WithPipeline creates a new BlockBlobURL object identical to the source but with the specific request policy pipeline.
+func (bb BlockBlobURL) WithPipeline(p pipeline.Pipeline) BlockBlobURL {
+	return NewBlockBlobURL(bb.blobClient.URL(), p)
+}
+
+// WithSnapshot creates a new BlockBlobURL object identical to the source but with the specified snapshot timestamp.
+// Pass "" to remove the snapshot returning a URL to the base blob.
+func (bb BlockBlobURL) WithSnapshot(snapshot string) BlockBlobURL {
+	p := NewBlobURLParts(bb.URL())
+	p.Snapshot = snapshot
+	return NewBlockBlobURL(p.URL(), bb.blobClient.Pipeline())
+}
+
+// Upload creates a new block blob or overwrites an existing block blob.
+// Updating an existing block blob overwrites any existing metadata on the blob. Partial updates are not
+// supported with Upload; the content of the existing blob is overwritten with the new content. To
+// perform a partial update of a block blob, use StageBlock and CommitBlockList.
+// This method panics if the stream is not at position 0.
+// Note that the http client closes the body stream after the request is sent to the service.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/put-blob.
+func (bb BlockBlobURL) Upload(ctx context.Context, body io.ReadSeeker, h BlobHTTPHeaders, metadata Metadata, ac BlobAccessConditions) (*BlockBlobUploadResponse, error) {
+	ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag := ac.HTTPAccessConditions.pointers()
+	return bb.bbClient.Upload(ctx, body, validateSeekableStreamAt0AndGetCount(body), nil,
+		&h.ContentType, &h.ContentEncoding, &h.ContentLanguage, h.ContentMD5,
+		&h.CacheControl, metadata, ac.LeaseAccessConditions.pointers(),
+		&h.ContentDisposition, ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag,
+		nil)
+}
+
+// StageBlock uploads the specified block to the block blob's "staging area" to be later committed by a call to CommitBlockList.
+// Note that the http client closes the body stream after the request is sent to the service.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/put-block.
+func (bb BlockBlobURL) StageBlock(ctx context.Context, base64BlockID string, body io.ReadSeeker, ac LeaseAccessConditions) (*BlockBlobStageBlockResponse, error) {
+	return bb.bbClient.StageBlock(ctx, base64BlockID, validateSeekableStreamAt0AndGetCount(body), body, nil, ac.pointers(), nil)
+}
+
+// StageBlockFromURL copies the specified block from a source URL to the block blob's "staging area" to be later committed by a call to CommitBlockList.
+// If count is CountToEnd (0), then data is read from specified offset to the end.
+// For more information, see https://docs.microsoft.com/en-us/rest/api/storageservices/put-block-from-url.
+func (bb BlockBlobURL) StageBlockFromURL(ctx context.Context, base64BlockID string, sourceURL url.URL, offset int64, count int64, ac LeaseAccessConditions) (*BlockBlobStageBlockFromURLResponse, error) {
+	sourceURLStr := sourceURL.String()
+	return bb.bbClient.StageBlockFromURL(ctx, base64BlockID, 0, &sourceURLStr, httpRange{offset: offset, count: count}.pointers(), nil, nil, ac.pointers(), nil)
+}
+
+// CommitBlockList writes a blob by specifying the list of block IDs that make up the blob.
+// In order to be written as part of a blob, a block must have been successfully written
+// to the server in a prior PutBlock operation. You can call PutBlockList to update a blob
+// by uploading only those blocks that have changed, then committing the new and existing
+// blocks together. Any blocks not specified in the block list and permanently deleted.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/put-block-list.
+func (bb BlockBlobURL) CommitBlockList(ctx context.Context, base64BlockIDs []string, h BlobHTTPHeaders,
+	metadata Metadata, ac BlobAccessConditions) (*BlockBlobCommitBlockListResponse, error) {
+	ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag := ac.HTTPAccessConditions.pointers()
+	return bb.bbClient.CommitBlockList(ctx, BlockLookupList{Latest: base64BlockIDs}, nil,
+		&h.CacheControl, &h.ContentType, &h.ContentEncoding, &h.ContentLanguage, h.ContentMD5,
+		metadata, ac.LeaseAccessConditions.pointers(), &h.ContentDisposition,
+		ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag, nil)
+}
+
+// GetBlockList returns the list of blocks that have been uploaded as part of a block blob using the specified block list filter.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/get-block-list.
+func (bb BlockBlobURL) GetBlockList(ctx context.Context, listType BlockListType, ac LeaseAccessConditions) (*BlockList, error) {
+	return bb.bbClient.GetBlockList(ctx, listType, nil, nil, ac.pointers(), nil)
+}
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+type BlockID [64]byte
+
+func (blockID BlockID) ToBase64() string {
+	return base64.StdEncoding.EncodeToString(blockID[:])
+}
+
+func (blockID *BlockID) FromBase64(s string) error {
+	*blockID = BlockID{} // Zero out the block ID
+	_, err := base64.StdEncoding.Decode(blockID[:], ([]byte)(s))
+	return err
+}
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+type uuidBlockID BlockID
+
+func (ubi uuidBlockID) UUID() uuid {
+	u := uuid{}
+	copy(u[:], ubi[:len(u)])
+	return u
+}
+
+func (ubi uuidBlockID) Number() uint32 {
+	return binary.BigEndian.Uint32(ubi[len(uuid{}):])
+}
+
+func newUuidBlockID(u uuid) uuidBlockID {
+	ubi := uuidBlockID{}     // Create a new uuidBlockID
+	copy(ubi[:len(u)], u[:]) // Copy the specified UUID into it
+	// Block number defaults to 0
+	return ubi
+}
+
+func (ubi *uuidBlockID) SetUUID(u uuid) *uuidBlockID {
+	copy(ubi[:len(u)], u[:])
+	return ubi
+}
+
+func (ubi uuidBlockID) WithBlockNumber(blockNumber uint32) uuidBlockID {
+	binary.BigEndian.PutUint32(ubi[len(uuid{}):], blockNumber) // Put block number after UUID
+	return ubi                                                 // Return the passed-in copy
+}
+
+func (ubi uuidBlockID) ToBase64() string {
+	return BlockID(ubi).ToBase64()
+}
+
+func (ubi *uuidBlockID) FromBase64(s string) error {
+	return (*BlockID)(ubi).FromBase64(s)
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/url_container.go

@@ -0,0 +1,300 @@
+package azblob
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"net/url"
+
+	"github.com/Azure/azure-pipeline-go/pipeline"
+)
+
+// A ContainerURL represents a URL to the Azure Storage container allowing you to manipulate its blobs.
+type ContainerURL struct {
+	client containerClient
+}
+
+// NewContainerURL creates a ContainerURL object using the specified URL and request policy pipeline.
+func NewContainerURL(url url.URL, p pipeline.Pipeline) ContainerURL {
+	if p == nil {
+		panic("p can't be nil")
+	}
+	client := newContainerClient(url, p)
+	return ContainerURL{client: client}
+}
+
+// URL returns the URL endpoint used by the ContainerURL object.
+func (c ContainerURL) URL() url.URL {
+	return c.client.URL()
+}
+
+// String returns the URL as a string.
+func (c ContainerURL) String() string {
+	u := c.URL()
+	return u.String()
+}
+
+// WithPipeline creates a new ContainerURL object identical to the source but with the specified request policy pipeline.
+func (c ContainerURL) WithPipeline(p pipeline.Pipeline) ContainerURL {
+	return NewContainerURL(c.URL(), p)
+}
+
+// NewBlobURL creates a new BlobURL object by concatenating blobName to the end of
+// ContainerURL's URL. The new BlobURL uses the same request policy pipeline as the ContainerURL.
+// To change the pipeline, create the BlobURL and then call its WithPipeline method passing in the
+// desired pipeline object. Or, call this package's NewBlobURL instead of calling this object's
+// NewBlobURL method.
+func (c ContainerURL) NewBlobURL(blobName string) BlobURL {
+	blobURL := appendToURLPath(c.URL(), blobName)
+	return NewBlobURL(blobURL, c.client.Pipeline())
+}
+
+// NewAppendBlobURL creates a new AppendBlobURL object by concatenating blobName to the end of
+// ContainerURL's URL. The new AppendBlobURL uses the same request policy pipeline as the ContainerURL.
+// To change the pipeline, create the AppendBlobURL and then call its WithPipeline method passing in the
+// desired pipeline object. Or, call this package's NewAppendBlobURL instead of calling this object's
+// NewAppendBlobURL method.
+func (c ContainerURL) NewAppendBlobURL(blobName string) AppendBlobURL {
+	blobURL := appendToURLPath(c.URL(), blobName)
+	return NewAppendBlobURL(blobURL, c.client.Pipeline())
+}
+
+// NewBlockBlobURL creates a new BlockBlobURL object by concatenating blobName to the end of
+// ContainerURL's URL. The new BlockBlobURL uses the same request policy pipeline as the ContainerURL.
+// To change the pipeline, create the BlockBlobURL and then call its WithPipeline method passing in the
+// desired pipeline object. Or, call this package's NewBlockBlobURL instead of calling this object's
+// NewBlockBlobURL method.
+func (c ContainerURL) NewBlockBlobURL(blobName string) BlockBlobURL {
+	blobURL := appendToURLPath(c.URL(), blobName)
+	return NewBlockBlobURL(blobURL, c.client.Pipeline())
+}
+
+// NewPageBlobURL creates a new PageBlobURL object by concatenating blobName to the end of
+// ContainerURL's URL. The new PageBlobURL uses the same request policy pipeline as the ContainerURL.
+// To change the pipeline, create the PageBlobURL and then call its WithPipeline method passing in the
+// desired pipeline object. Or, call this package's NewPageBlobURL instead of calling this object's
+// NewPageBlobURL method.
+func (c ContainerURL) NewPageBlobURL(blobName string) PageBlobURL {
+	blobURL := appendToURLPath(c.URL(), blobName)
+	return NewPageBlobURL(blobURL, c.client.Pipeline())
+}
+
+// Create creates a new container within a storage account. If a container with the same name already exists, the operation fails.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/create-container.
+func (c ContainerURL) Create(ctx context.Context, metadata Metadata, publicAccessType PublicAccessType) (*ContainerCreateResponse, error) {
+	return c.client.Create(ctx, nil, metadata, publicAccessType, nil)
+}
+
+// Delete marks the specified container for deletion. The container and any blobs contained within it are later deleted during garbage collection.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/delete-container.
+func (c ContainerURL) Delete(ctx context.Context, ac ContainerAccessConditions) (*ContainerDeleteResponse, error) {
+	if ac.IfMatch != ETagNone || ac.IfNoneMatch != ETagNone {
+		panic("the IfMatch and IfNoneMatch access conditions must have their default values because they are ignored by the service")
+	}
+
+	ifModifiedSince, ifUnmodifiedSince, _, _ := ac.HTTPAccessConditions.pointers()
+	return c.client.Delete(ctx, nil, ac.LeaseAccessConditions.pointers(),
+		ifModifiedSince, ifUnmodifiedSince, nil)
+}
+
+// GetProperties returns the container's properties.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/get-container-metadata.
+func (c ContainerURL) GetProperties(ctx context.Context, ac LeaseAccessConditions) (*ContainerGetPropertiesResponse, error) {
+	// NOTE: GetMetadata actually calls GetProperties internally because GetProperties returns the metadata AND the properties.
+	// This allows us to not expose a GetProperties method at all simplifying the API.
+	return c.client.GetProperties(ctx, nil, ac.pointers(), nil)
+}
+
+// SetMetadata sets the container's metadata.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/set-container-metadata.
+func (c ContainerURL) SetMetadata(ctx context.Context, metadata Metadata, ac ContainerAccessConditions) (*ContainerSetMetadataResponse, error) {
+	if !ac.IfUnmodifiedSince.IsZero() || ac.IfMatch != ETagNone || ac.IfNoneMatch != ETagNone {
+		panic("the IfUnmodifiedSince, IfMatch, and IfNoneMatch must have their default values because they are ignored by the blob service")
+	}
+	ifModifiedSince, _, _, _ := ac.HTTPAccessConditions.pointers()
+	return c.client.SetMetadata(ctx, nil, ac.LeaseAccessConditions.pointers(), metadata, ifModifiedSince, nil)
+}
+
+// GetAccessPolicy returns the container's access policy. The access policy indicates whether container's blobs may be accessed publicly.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/get-container-acl.
+func (c ContainerURL) GetAccessPolicy(ctx context.Context, ac LeaseAccessConditions) (*SignedIdentifiers, error) {
+	return c.client.GetAccessPolicy(ctx, nil, ac.pointers(), nil)
+}
+
+// The AccessPolicyPermission type simplifies creating the permissions string for a container's access policy.
+// Initialize an instance of this type and then call its String method to set AccessPolicy's Permission field.
+type AccessPolicyPermission struct {
+	Read, Add, Create, Write, Delete, List bool
+}
+
+// String produces the access policy permission string for an Azure Storage container.
+// Call this method to set AccessPolicy's Permission field.
+func (p AccessPolicyPermission) String() string {
+	var b bytes.Buffer
+	if p.Read {
+		b.WriteRune('r')
+	}
+	if p.Add {
+		b.WriteRune('a')
+	}
+	if p.Create {
+		b.WriteRune('c')
+	}
+	if p.Write {
+		b.WriteRune('w')
+	}
+	if p.Delete {
+		b.WriteRune('d')
+	}
+	if p.List {
+		b.WriteRune('l')
+	}
+	return b.String()
+}
+
+// Parse initializes the AccessPolicyPermission's fields from a string.
+func (p *AccessPolicyPermission) Parse(s string) error {
+	*p = AccessPolicyPermission{} // Clear the flags
+	for _, r := range s {
+		switch r {
+		case 'r':
+			p.Read = true
+		case 'a':
+			p.Add = true
+		case 'c':
+			p.Create = true
+		case 'w':
+			p.Write = true
+		case 'd':
+			p.Delete = true
+		case 'l':
+			p.List = true
+		default:
+			return fmt.Errorf("invalid permission: '%v'", r)
+		}
+	}
+	return nil
+}
+
+// SetAccessPolicy sets the container's permissions. The access policy indicates whether blobs in a container may be accessed publicly.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/set-container-acl.
+func (c ContainerURL) SetAccessPolicy(ctx context.Context, accessType PublicAccessType, si []SignedIdentifier,
+	ac ContainerAccessConditions) (*ContainerSetAccessPolicyResponse, error) {
+	if ac.IfMatch != ETagNone || ac.IfNoneMatch != ETagNone {
+		panic("the IfMatch and IfNoneMatch access conditions must have their default values because they are ignored by the service")
+	}
+	ifModifiedSince, ifUnmodifiedSince, _, _ := ac.HTTPAccessConditions.pointers()
+	return c.client.SetAccessPolicy(ctx, si, nil, ac.LeaseAccessConditions.pointers(),
+		accessType, ifModifiedSince, ifUnmodifiedSince, nil)
+}
+
+// AcquireLease acquires a lease on the container for delete operations. The lease duration must be between 15 to 60 seconds, or infinite (-1).
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/lease-container.
+func (c ContainerURL) AcquireLease(ctx context.Context, proposedID string, duration int32, ac HTTPAccessConditions) (*ContainerAcquireLeaseResponse, error) {
+	ifModifiedSince, ifUnmodifiedSince, _, _ := ac.pointers()
+	return c.client.AcquireLease(ctx, nil, &duration, &proposedID,
+		ifModifiedSince, ifUnmodifiedSince, nil)
+}
+
+// RenewLease renews the container's previously-acquired lease.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/lease-container.
+func (c ContainerURL) RenewLease(ctx context.Context, leaseID string, ac HTTPAccessConditions) (*ContainerRenewLeaseResponse, error) {
+	ifModifiedSince, ifUnmodifiedSince, _, _ := ac.pointers()
+	return c.client.RenewLease(ctx, leaseID, nil, ifModifiedSince, ifUnmodifiedSince, nil)
+}
+
+// ReleaseLease releases the container's previously-acquired lease.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/lease-container.
+func (c ContainerURL) ReleaseLease(ctx context.Context, leaseID string, ac HTTPAccessConditions) (*ContainerReleaseLeaseResponse, error) {
+	ifModifiedSince, ifUnmodifiedSince, _, _ := ac.pointers()
+	return c.client.ReleaseLease(ctx, leaseID, nil, ifModifiedSince, ifUnmodifiedSince, nil)
+}
+
+// BreakLease breaks the container's previously-acquired lease (if it exists).
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/lease-container.
+func (c ContainerURL) BreakLease(ctx context.Context, period int32, ac HTTPAccessConditions) (*ContainerBreakLeaseResponse, error) {
+	ifModifiedSince, ifUnmodifiedSince, _, _ := ac.pointers()
+	return c.client.BreakLease(ctx, nil, leasePeriodPointer(period), ifModifiedSince, ifUnmodifiedSince, nil)
+}
+
+// ChangeLease changes the container's lease ID.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/lease-container.
+func (c ContainerURL) ChangeLease(ctx context.Context, leaseID string, proposedID string, ac HTTPAccessConditions) (*ContainerChangeLeaseResponse, error) {
+	ifModifiedSince, ifUnmodifiedSince, _, _ := ac.pointers()
+	return c.client.ChangeLease(ctx, leaseID, proposedID, nil, ifModifiedSince, ifUnmodifiedSince, nil)
+}
+
+// ListBlobsFlatSegment returns a single segment of blobs starting from the specified Marker. Use an empty
+// Marker to start enumeration from the beginning. Blob names are returned in lexicographic order.
+// After getting a segment, process it, and then call ListBlobsFlatSegment again (passing the the
+// previously-returned Marker) to get the next segment.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/list-blobs.
+func (c ContainerURL) ListBlobsFlatSegment(ctx context.Context, marker Marker, o ListBlobsSegmentOptions) (*ListBlobsFlatSegmentResponse, error) {
+	prefix, include, maxResults := o.pointers()
+	return c.client.ListBlobFlatSegment(ctx, prefix, marker.val, maxResults, include, nil, nil)
+}
+
+// ListBlobsHierarchySegment returns a single segment of blobs starting from the specified Marker. Use an empty
+// Marker to start enumeration from the beginning. Blob names are returned in lexicographic order.
+// After getting a segment, process it, and then call ListBlobsHierarchicalSegment again (passing the the
+// previously-returned Marker) to get the next segment.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/list-blobs.
+func (c ContainerURL) ListBlobsHierarchySegment(ctx context.Context, marker Marker, delimiter string, o ListBlobsSegmentOptions) (*ListBlobsHierarchySegmentResponse, error) {
+	if o.Details.Snapshots {
+		panic("snapshots are not supported in this listing operation")
+	}
+	prefix, include, maxResults := o.pointers()
+	return c.client.ListBlobHierarchySegment(ctx, delimiter, prefix, marker.val, maxResults, include, nil, nil)
+}
+
+// ListBlobsSegmentOptions defines options available when calling ListBlobs.
+type ListBlobsSegmentOptions struct {
+	Details BlobListingDetails // No IncludeType header is produced if ""
+	Prefix  string             // No Prefix header is produced if ""
+
+	// SetMaxResults sets the maximum desired results you want the service to return. Note, the
+	// service may return fewer results than requested.
+	// MaxResults=0 means no 'MaxResults' header specified.
+	MaxResults int32
+}
+
+func (o *ListBlobsSegmentOptions) pointers() (prefix *string, include []ListBlobsIncludeItemType, maxResults *int32) {
+	if o.Prefix != "" {
+		prefix = &o.Prefix
+	}
+	include = o.Details.slice()
+	if o.MaxResults != 0 {
+		if o.MaxResults < 0 {
+			panic("MaxResults must be >= 0")
+		}
+		maxResults = &o.MaxResults
+	}
+	return
+}
+
+// BlobListingDetails indicates what additional information the service should return with each blob.
+type BlobListingDetails struct {
+	Copy, Metadata, Snapshots, UncommittedBlobs, Deleted bool
+}
+
+// string produces the Include query parameter's value.
+func (d *BlobListingDetails) slice() []ListBlobsIncludeItemType {
+	items := []ListBlobsIncludeItemType{}
+	// NOTE: Multiple strings MUST be appended in alphabetic order or signing the string for authentication fails!
+	if d.Copy {
+		items = append(items, ListBlobsIncludeItemCopy)
+	}
+	if d.Deleted {
+		items = append(items, ListBlobsIncludeItemDeleted)
+	}
+	if d.Metadata {
+		items = append(items, ListBlobsIncludeItemMetadata)
+	}
+	if d.Snapshots {
+		items = append(items, ListBlobsIncludeItemSnapshots)
+	}
+	if d.UncommittedBlobs {
+		items = append(items, ListBlobsIncludeItemUncommittedblobs)
+	}
+	return items
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/url_page_blob.go

@@ -0,0 +1,236 @@
+package azblob
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"net/url"
+	"strconv"
+
+	"github.com/Azure/azure-pipeline-go/pipeline"
+)
+
+const (
+	// PageBlobPageBytes indicates the number of bytes in a page (512).
+	PageBlobPageBytes = 512
+
+	// PageBlobMaxPutPagesBytes indicates the maximum number of bytes that can be sent in a call to PutPage.
+	PageBlobMaxUploadPagesBytes = 4 * 1024 * 1024 // 4MB
+)
+
+// PageBlobURL defines a set of operations applicable to page blobs.
+type PageBlobURL struct {
+	BlobURL
+	pbClient pageBlobClient
+}
+
+// NewPageBlobURL creates a PageBlobURL object using the specified URL and request policy pipeline.
+func NewPageBlobURL(url url.URL, p pipeline.Pipeline) PageBlobURL {
+	if p == nil {
+		panic("p can't be nil")
+	}
+	blobClient := newBlobClient(url, p)
+	pbClient := newPageBlobClient(url, p)
+	return PageBlobURL{BlobURL: BlobURL{blobClient: blobClient}, pbClient: pbClient}
+}
+
+// WithPipeline creates a new PageBlobURL object identical to the source but with the specific request policy pipeline.
+func (pb PageBlobURL) WithPipeline(p pipeline.Pipeline) PageBlobURL {
+	return NewPageBlobURL(pb.blobClient.URL(), p)
+}
+
+// WithSnapshot creates a new PageBlobURL object identical to the source but with the specified snapshot timestamp.
+// Pass "" to remove the snapshot returning a URL to the base blob.
+func (pb PageBlobURL) WithSnapshot(snapshot string) PageBlobURL {
+	p := NewBlobURLParts(pb.URL())
+	p.Snapshot = snapshot
+	return NewPageBlobURL(p.URL(), pb.blobClient.Pipeline())
+}
+
+// CreatePageBlob creates a page blob of the specified length. Call PutPage to upload data data to a page blob.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/put-blob.
+func (pb PageBlobURL) Create(ctx context.Context, size int64, sequenceNumber int64, h BlobHTTPHeaders, metadata Metadata, ac BlobAccessConditions) (*PageBlobCreateResponse, error) {
+	if sequenceNumber < 0 {
+		panic("sequenceNumber must be greater than or equal to 0")
+	}
+	ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag := ac.HTTPAccessConditions.pointers()
+	return pb.pbClient.Create(ctx, 0, nil,
+		&h.ContentType, &h.ContentEncoding, &h.ContentLanguage, h.ContentMD5, &h.CacheControl,
+		metadata, ac.LeaseAccessConditions.pointers(),
+		&h.ContentDisposition, ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag, &size, &sequenceNumber, nil)
+}
+
+// UploadPages writes 1 or more pages to the page blob. The start offset and the stream size must be a multiple of 512 bytes.
+// This method panics if the stream is not at position 0.
+// Note that the http client closes the body stream after the request is sent to the service.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/put-page.
+func (pb PageBlobURL) UploadPages(ctx context.Context, offset int64, body io.ReadSeeker, ac BlobAccessConditions) (*PageBlobUploadPagesResponse, error) {
+	count := validateSeekableStreamAt0AndGetCount(body)
+	ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag := ac.HTTPAccessConditions.pointers()
+	ifSequenceNumberLessThanOrEqual, ifSequenceNumberLessThan, ifSequenceNumberEqual := ac.PageBlobAccessConditions.pointers()
+	return pb.pbClient.UploadPages(ctx, body, count, nil,
+		PageRange{Start: offset, End: offset + count - 1}.pointers(),
+		ac.LeaseAccessConditions.pointers(),
+		ifSequenceNumberLessThanOrEqual, ifSequenceNumberLessThan, ifSequenceNumberEqual,
+		ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag, nil)
+}
+
+// ClearPages frees the specified pages from the page blob.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/put-page.
+func (pb PageBlobURL) ClearPages(ctx context.Context, offset int64, count int64, ac BlobAccessConditions) (*PageBlobClearPagesResponse, error) {
+	ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag := ac.HTTPAccessConditions.pointers()
+	ifSequenceNumberLessThanOrEqual, ifSequenceNumberLessThan, ifSequenceNumberEqual := ac.PageBlobAccessConditions.pointers()
+	return pb.pbClient.ClearPages(ctx, 0, nil,
+		PageRange{Start: offset, End: offset + count - 1}.pointers(),
+		ac.LeaseAccessConditions.pointers(),
+		ifSequenceNumberLessThanOrEqual, ifSequenceNumberLessThan,
+		ifSequenceNumberEqual, ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag, nil)
+}
+
+// GetPageRanges returns the list of valid page ranges for a page blob or snapshot of a page blob.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/get-page-ranges.
+func (pb PageBlobURL) GetPageRanges(ctx context.Context, offset int64, count int64, ac BlobAccessConditions) (*PageList, error) {
+	ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag := ac.HTTPAccessConditions.pointers()
+	return pb.pbClient.GetPageRanges(ctx, nil, nil,
+		httpRange{offset: offset, count: count}.pointers(),
+		ac.LeaseAccessConditions.pointers(),
+		ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag, nil)
+}
+
+// GetPageRangesDiff gets the collection of page ranges that differ between a specified snapshot and this page blob.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/get-page-ranges.
+func (pb PageBlobURL) GetPageRangesDiff(ctx context.Context, offset int64, count int64, prevSnapshot string, ac BlobAccessConditions) (*PageList, error) {
+	ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag := ac.HTTPAccessConditions.pointers()
+	return pb.pbClient.GetPageRangesDiff(ctx, nil, nil, &prevSnapshot,
+		httpRange{offset: offset, count: count}.pointers(),
+		ac.LeaseAccessConditions.pointers(),
+		ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag,
+		nil)
+}
+
+// Resize resizes the page blob to the specified size (which must be a multiple of 512).
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/set-blob-properties.
+func (pb PageBlobURL) Resize(ctx context.Context, size int64, ac BlobAccessConditions) (*PageBlobResizeResponse, error) {
+	if size%PageBlobPageBytes != 0 {
+		panic("Size must be a multiple of PageBlobPageBytes (512)")
+	}
+	ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag := ac.HTTPAccessConditions.pointers()
+	return pb.pbClient.Resize(ctx, size, nil, ac.LeaseAccessConditions.pointers(),
+		ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag, nil)
+}
+
+// SetSequenceNumber sets the page blob's sequence number.
+func (pb PageBlobURL) UpdateSequenceNumber(ctx context.Context, action SequenceNumberActionType, sequenceNumber int64,
+	ac BlobAccessConditions) (*PageBlobUpdateSequenceNumberResponse, error) {
+	if sequenceNumber < 0 {
+		panic("sequenceNumber must be greater than or equal to 0")
+	}
+	sn := &sequenceNumber
+	if action == SequenceNumberActionIncrement {
+		sn = nil
+	}
+	ifModifiedSince, ifUnmodifiedSince, ifMatch, ifNoneMatch := ac.HTTPAccessConditions.pointers()
+	return pb.pbClient.UpdateSequenceNumber(ctx, action, nil,
+		ac.LeaseAccessConditions.pointers(), ifModifiedSince, ifUnmodifiedSince, ifMatch, ifNoneMatch,
+		sn, nil)
+}
+
+// StartIncrementalCopy begins an operation to start an incremental copy from one page blob's snapshot to this page blob.
+// The snapshot is copied such that only the differential changes between the previously copied snapshot are transferred to the destination.
+// The copied snapshots are complete copies of the original snapshot and can be read or copied from as usual.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/incremental-copy-blob and
+// https://docs.microsoft.com/en-us/azure/virtual-machines/windows/incremental-snapshots.
+func (pb PageBlobURL) StartCopyIncremental(ctx context.Context, source url.URL, snapshot string, ac BlobAccessConditions) (*PageBlobCopyIncrementalResponse, error) {
+	ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag := ac.HTTPAccessConditions.pointers()
+	qp := source.Query()
+	qp.Set("snapshot", snapshot)
+	source.RawQuery = qp.Encode()
+	return pb.pbClient.CopyIncremental(ctx, source.String(), nil, nil,
+		ifModifiedSince, ifUnmodifiedSince, ifMatchETag, ifNoneMatchETag, nil)
+}
+
+func (pr PageRange) pointers() *string {
+	if pr.Start < 0 {
+		panic("PageRange's Start value must be greater than or equal to 0")
+	}
+	if pr.End <= 0 {
+		panic("PageRange's End value must be greater than 0")
+	}
+	if pr.Start%PageBlobPageBytes != 0 {
+		panic("PageRange's Start value must be a multiple of 512")
+	}
+	if pr.End%PageBlobPageBytes != (PageBlobPageBytes - 1) {
+		panic("PageRange's End value must be 1 less than a multiple of 512")
+	}
+	if pr.End <= pr.Start {
+		panic("PageRange's End value must be after the start")
+	}
+	endOffset := strconv.FormatInt(int64(pr.End), 10)
+	asString := fmt.Sprintf("bytes=%v-%s", pr.Start, endOffset)
+	return &asString
+}
+
+// PageBlobAccessConditions identifies page blob-specific access conditions which you optionally set.
+type PageBlobAccessConditions struct {
+	// IfSequenceNumberLessThan ensures that the page blob operation succeeds
+	// only if the blob's sequence number is less than a value.
+	// IfSequenceNumberLessThan=0 means no 'IfSequenceNumberLessThan' header specified.
+	// IfSequenceNumberLessThan>0 means 'IfSequenceNumberLessThan' header specified with its value
+	// IfSequenceNumberLessThan==-1 means 'IfSequenceNumberLessThan' header specified with a value of 0
+	IfSequenceNumberLessThan int64
+
+	// IfSequenceNumberLessThanOrEqual ensures that the page blob operation succeeds
+	// only if the blob's sequence number is less than or equal to a value.
+	// IfSequenceNumberLessThanOrEqual=0 means no 'IfSequenceNumberLessThanOrEqual' header specified.
+	// IfSequenceNumberLessThanOrEqual>0 means 'IfSequenceNumberLessThanOrEqual' header specified with its value
+	// IfSequenceNumberLessThanOrEqual=-1 means 'IfSequenceNumberLessThanOrEqual' header specified with a value of 0
+	IfSequenceNumberLessThanOrEqual int64
+
+	// IfSequenceNumberEqual ensures that the page blob operation succeeds
+	// only if the blob's sequence number is equal to a value.
+	// IfSequenceNumberEqual=0 means no 'IfSequenceNumberEqual' header specified.
+	// IfSequenceNumberEqual>0 means 'IfSequenceNumberEqual' header specified with its value
+	// IfSequenceNumberEqual=-1 means 'IfSequenceNumberEqual' header specified with a value of 0
+	IfSequenceNumberEqual int64
+}
+
+// pointers is for internal infrastructure. It returns the fields as pointers.
+func (ac PageBlobAccessConditions) pointers() (snltoe *int64, snlt *int64, sne *int64) {
+	if ac.IfSequenceNumberLessThan < -1 {
+		panic("Ifsequencenumberlessthan can't be less than -1")
+	}
+	if ac.IfSequenceNumberLessThanOrEqual < -1 {
+		panic("IfSequenceNumberLessThanOrEqual can't be less than -1")
+	}
+	if ac.IfSequenceNumberEqual < -1 {
+		panic("IfSequenceNumberEqual can't be less than -1")
+	}
+
+	var zero int64 // Defaults to 0
+	switch ac.IfSequenceNumberLessThan {
+	case -1:
+		snlt = &zero
+	case 0:
+		snlt = nil
+	default:
+		snlt = &ac.IfSequenceNumberLessThan
+	}
+
+	switch ac.IfSequenceNumberLessThanOrEqual {
+	case -1:
+		snltoe = &zero
+	case 0:
+		snltoe = nil
+	default:
+		snltoe = &ac.IfSequenceNumberLessThanOrEqual
+	}
+	switch ac.IfSequenceNumberEqual {
+	case -1:
+		sne = &zero
+	case 0:
+		sne = nil
+	default:
+		sne = &ac.IfSequenceNumberEqual
+	}
+	return
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/url_service.go

@@ -0,0 +1,140 @@
+package azblob
+
+import (
+	"context"
+	"net/url"
+	"strings"
+
+	"github.com/Azure/azure-pipeline-go/pipeline"
+)
+
+const (
+	// ContainerNameRoot is the special Azure Storage name used to identify a storage account's root container.
+	ContainerNameRoot = "$root"
+
+	// ContainerNameLogs is the special Azure Storage name used to identify a storage account's logs container.
+	ContainerNameLogs = "$logs"
+)
+
+// A ServiceURL represents a URL to the Azure Storage Blob service allowing you to manipulate blob containers.
+type ServiceURL struct {
+	client serviceClient
+}
+
+// NewServiceURL creates a ServiceURL object using the specified URL and request policy pipeline.
+func NewServiceURL(primaryURL url.URL, p pipeline.Pipeline) ServiceURL {
+	if p == nil {
+		panic("p can't be nil")
+	}
+	client := newServiceClient(primaryURL, p)
+	return ServiceURL{client: client}
+}
+
+// URL returns the URL endpoint used by the ServiceURL object.
+func (s ServiceURL) URL() url.URL {
+	return s.client.URL()
+}
+
+// String returns the URL as a string.
+func (s ServiceURL) String() string {
+	u := s.URL()
+	return u.String()
+}
+
+// WithPipeline creates a new ServiceURL object identical to the source but with the specified request policy pipeline.
+func (s ServiceURL) WithPipeline(p pipeline.Pipeline) ServiceURL {
+	return NewServiceURL(s.URL(), p)
+}
+
+// NewContainerURL creates a new ContainerURL object by concatenating containerName to the end of
+// ServiceURL's URL. The new ContainerURL uses the same request policy pipeline as the ServiceURL.
+// To change the pipeline, create the ContainerURL and then call its WithPipeline method passing in the
+// desired pipeline object. Or, call this package's NewContainerURL instead of calling this object's
+// NewContainerURL method.
+func (s ServiceURL) NewContainerURL(containerName string) ContainerURL {
+	containerURL := appendToURLPath(s.URL(), containerName)
+	return NewContainerURL(containerURL, s.client.Pipeline())
+}
+
+// appendToURLPath appends a string to the end of a URL's path (prefixing the string with a '/' if required)
+func appendToURLPath(u url.URL, name string) url.URL {
+	// e.g. "https://ms.com/a/b/?k1=v1&k2=v2#f"
+	// When you call url.Parse() this is what you'll get:
+	//     Scheme: "https"
+	//     Opaque: ""
+	//       User: nil
+	//       Host: "ms.com"
+	//       Path: "/a/b/"	This should start with a / and it might or might not have a trailing slash
+	//    RawPath: ""
+	// ForceQuery: false
+	//   RawQuery: "k1=v1&k2=v2"
+	//   Fragment: "f"
+	if len(u.Path) == 0 || u.Path[len(u.Path)-1] != '/' {
+		u.Path += "/" // Append "/" to end before appending name
+	}
+	u.Path += name
+	return u
+}
+
+// ListContainersFlatSegment returns a single segment of containers starting from the specified Marker. Use an empty
+// Marker to start enumeration from the beginning. Container names are returned in lexicographic order.
+// After getting a segment, process it, and then call ListContainersFlatSegment again (passing the the
+// previously-returned Marker) to get the next segment. For more information, see
+// https://docs.microsoft.com/rest/api/storageservices/list-containers2.
+func (s ServiceURL) ListContainersSegment(ctx context.Context, marker Marker, o ListContainersSegmentOptions) (*ListContainersResponse, error) {
+	prefix, include, maxResults := o.pointers()
+	return s.client.ListContainersSegment(ctx, prefix, marker.val, maxResults, include, nil, nil)
+}
+
+// ListContainersOptions defines options available when calling ListContainers.
+type ListContainersSegmentOptions struct {
+	Detail     ListContainersDetail // No IncludeType header is produced if ""
+	Prefix     string                   // No Prefix header is produced if ""
+	MaxResults int32                    // 0 means unspecified
+	// TODO: update swagger to generate this type?
+}
+
+func (o *ListContainersSegmentOptions) pointers() (prefix *string, include ListContainersIncludeType, maxResults *int32) {
+	if o.Prefix != "" {
+		prefix = &o.Prefix
+	}
+	if o.MaxResults != 0 {
+		if o.MaxResults < 0 {
+			panic("MaxResults must be >= 0")
+		}
+		maxResults = &o.MaxResults
+	}
+	include = ListContainersIncludeType(o.Detail.string())
+	return
+}
+
+// ListContainersFlatDetail indicates what additional information the service should return with each container.
+type ListContainersDetail struct {
+	// Tells the service whether to return metadata for each container.
+	Metadata bool
+}
+
+// string produces the Include query parameter's value.
+func (d *ListContainersDetail) string() string {
+	items := make([]string, 0, 1)
+	// NOTE: Multiple strings MUST be appended in alphabetic order or signing the string for authentication fails!
+	if d.Metadata {
+		items = append(items, string(ListContainersIncludeMetadata))
+	}
+	if len(items) > 0 {
+		return strings.Join(items, ",")
+	}
+	return string(ListContainersIncludeNone)
+}
+
+func (bsu ServiceURL) GetProperties(ctx context.Context) (*StorageServiceProperties, error) {
+	return bsu.client.GetProperties(ctx, nil, nil)
+}
+
+func (bsu ServiceURL) SetProperties(ctx context.Context, properties StorageServiceProperties) (*ServiceSetPropertiesResponse, error) {
+	return bsu.client.SetProperties(ctx, properties, nil, nil)
+}
+
+func (bsu ServiceURL) GetStatistics(ctx context.Context) (*StorageServiceStats, error) {
+	return bsu.client.GetStatistics(ctx, nil, nil)
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/version.go

@@ -0,0 +1,3 @@
+package azblob
+
+const serviceLibVersion = "0.1"

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zc_credential_anonymous.go

@@ -0,0 +1,55 @@
+package azblob
+
+import (
+	"context"
+
+	"github.com/Azure/azure-pipeline-go/pipeline"
+)
+
+// Credential represent any credential type; it is used to create a credential policy Factory.
+type Credential interface {
+	pipeline.Factory
+	credentialMarker()
+}
+
+type credentialFunc pipeline.FactoryFunc
+
+func (f credentialFunc) New(next pipeline.Policy, po *pipeline.PolicyOptions) pipeline.Policy {
+	return f(next, po)
+}
+
+// credentialMarker is a package-internal method that exists just to satisfy the Credential interface.
+func (credentialFunc) credentialMarker() {}
+
+//////////////////////////////
+
+// NewAnonymousCredential creates an anonymous credential for use with HTTP(S) requests that read public resource
+// or for use with Shared Access Signatures (SAS).
+func NewAnonymousCredential() Credential {
+	return anonymousCredentialFactory
+}
+
+var anonymousCredentialFactory Credential = &anonymousCredentialPolicyFactory{} // Singleton
+
+// anonymousCredentialPolicyFactory is the credential's policy factory.
+type anonymousCredentialPolicyFactory struct {
+}
+
+// New creates a credential policy object.
+func (f *anonymousCredentialPolicyFactory) New(next pipeline.Policy, po *pipeline.PolicyOptions) pipeline.Policy {
+	return &anonymousCredentialPolicy{next: next}
+}
+
+// credentialMarker is a package-internal method that exists just to satisfy the Credential interface.
+func (*anonymousCredentialPolicyFactory) credentialMarker() {}
+
+// anonymousCredentialPolicy is the credential's policy object.
+type anonymousCredentialPolicy struct {
+	next pipeline.Policy
+}
+
+// Do implements the credential's policy interface.
+func (p anonymousCredentialPolicy) Do(ctx context.Context, request pipeline.Request) (pipeline.Response, error) {
+	// For anonymous credentials, this is effectively a no-op
+	return p.next.Do(ctx, request)
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zc_credential_shared_key.go

@@ -0,0 +1,187 @@
+package azblob
+
+import (
+	"bytes"
+	"context"
+	"crypto/hmac"
+	"crypto/sha256"
+	"encoding/base64"
+	"net/http"
+	"net/url"
+	"sort"
+	"strings"
+	"time"
+
+	"github.com/Azure/azure-pipeline-go/pipeline"
+)
+
+// NewSharedKeyCredential creates an immutable SharedKeyCredential containing the
+// storage account's name and either its primary or secondary key.
+func NewSharedKeyCredential(accountName, accountKey string) *SharedKeyCredential {
+	bytes, err := base64.StdEncoding.DecodeString(accountKey)
+	if err != nil {
+		panic(err)
+	}
+	return &SharedKeyCredential{accountName: accountName, accountKey: bytes}
+}
+
+// SharedKeyCredential contains an account's name and its primary or secondary key.
+// It is immutable making it shareable and goroutine-safe.
+type SharedKeyCredential struct {
+	// Only the NewSharedKeyCredential method should set these; all other methods should treat them as read-only
+	accountName string
+	accountKey  []byte
+}
+
+// AccountName returns the Storage account's name.
+func (f SharedKeyCredential) AccountName() string {
+	return f.accountName
+}
+
+// New creates a credential policy object.
+func (f *SharedKeyCredential) New(next pipeline.Policy, po *pipeline.PolicyOptions) pipeline.Policy {
+	return pipeline.PolicyFunc(func(ctx context.Context, request pipeline.Request) (pipeline.Response, error) {
+		// Add a x-ms-date header if it doesn't already exist
+		if d := request.Header.Get(headerXmsDate); d == "" {
+			request.Header[headerXmsDate] = []string{time.Now().UTC().Format(http.TimeFormat)}
+		}
+		stringToSign := f.buildStringToSign(request)
+		signature := f.ComputeHMACSHA256(stringToSign)
+		authHeader := strings.Join([]string{"SharedKey ", f.accountName, ":", signature}, "")
+		request.Header[headerAuthorization] = []string{authHeader}
+
+		response, err := next.Do(ctx, request)
+		if err != nil && response != nil && response.Response() != nil && response.Response().StatusCode == http.StatusForbidden {
+			// Service failed to authenticate request, log it
+			po.Log(pipeline.LogError, "===== HTTP Forbidden status, String-to-Sign:\n"+stringToSign+"\n===============================\n")
+		}
+		return response, err
+	})
+}
+
+// credentialMarker is a package-internal method that exists just to satisfy the Credential interface.
+func (*SharedKeyCredential) credentialMarker() {}
+
+// Constants ensuring that header names are correctly spelled and consistently cased.
+const (
+	headerAuthorization      = "Authorization"
+	headerCacheControl       = "Cache-Control"
+	headerContentEncoding    = "Content-Encoding"
+	headerContentDisposition = "Content-Disposition"
+	headerContentLanguage    = "Content-Language"
+	headerContentLength      = "Content-Length"
+	headerContentMD5         = "Content-MD5"
+	headerContentType        = "Content-Type"
+	headerDate               = "Date"
+	headerIfMatch            = "If-Match"
+	headerIfModifiedSince    = "If-Modified-Since"
+	headerIfNoneMatch        = "If-None-Match"
+	headerIfUnmodifiedSince  = "If-Unmodified-Since"
+	headerRange              = "Range"
+	headerUserAgent          = "User-Agent"
+	headerXmsDate            = "x-ms-date"
+	headerXmsVersion         = "x-ms-version"
+)
+
+// ComputeHMACSHA256 generates a hash signature for an HTTP request or for a SAS.
+func (f *SharedKeyCredential) ComputeHMACSHA256(message string) (base64String string) {
+	h := hmac.New(sha256.New, f.accountKey)
+	h.Write([]byte(message))
+	return base64.StdEncoding.EncodeToString(h.Sum(nil))
+}
+
+func (f *SharedKeyCredential) buildStringToSign(request pipeline.Request) string {
+	// https://docs.microsoft.com/en-us/rest/api/storageservices/authentication-for-the-azure-storage-services
+	headers := request.Header
+	contentLength := headers.Get(headerContentLength)
+	if contentLength == "0" {
+		contentLength = ""
+	}
+
+	stringToSign := strings.Join([]string{
+		request.Method,
+		headers.Get(headerContentEncoding),
+		headers.Get(headerContentLanguage),
+		contentLength,
+		headers.Get(headerContentMD5),
+		headers.Get(headerContentType),
+		"", // Empty date because x-ms-date is expected (as per web page above)
+		headers.Get(headerIfModifiedSince),
+		headers.Get(headerIfMatch),
+		headers.Get(headerIfNoneMatch),
+		headers.Get(headerIfUnmodifiedSince),
+		headers.Get(headerRange),
+		buildCanonicalizedHeader(headers),
+		f.buildCanonicalizedResource(request.URL),
+	}, "\n")
+	return stringToSign
+}
+
+func buildCanonicalizedHeader(headers http.Header) string {
+	cm := map[string][]string{}
+	for k, v := range headers {
+		headerName := strings.TrimSpace(strings.ToLower(k))
+		if strings.HasPrefix(headerName, "x-ms-") {
+			cm[headerName] = v // NOTE: the value must not have any whitespace around it.
+		}
+	}
+	if len(cm) == 0 {
+		return ""
+	}
+
+	keys := make([]string, 0, len(cm))
+	for key := range cm {
+		keys = append(keys, key)
+	}
+	sort.Strings(keys)
+	ch := bytes.NewBufferString("")
+	for i, key := range keys {
+		if i > 0 {
+			ch.WriteRune('\n')
+		}
+		ch.WriteString(key)
+		ch.WriteRune(':')
+		ch.WriteString(strings.Join(cm[key], ","))
+	}
+	return string(ch.Bytes())
+}
+
+func (f *SharedKeyCredential) buildCanonicalizedResource(u *url.URL) string {
+	// https://docs.microsoft.com/en-us/rest/api/storageservices/authentication-for-the-azure-storage-services
+	cr := bytes.NewBufferString("/")
+	cr.WriteString(f.accountName)
+
+	if len(u.Path) > 0 {
+		// Any portion of the CanonicalizedResource string that is derived from
+		// the resource's URI should be encoded exactly as it is in the URI.
+		// -- https://msdn.microsoft.com/en-gb/library/azure/dd179428.aspx
+		cr.WriteString(u.EscapedPath())
+	} else {
+		// a slash is required to indicate the root path
+		cr.WriteString("/")
+	}
+
+	// params is a map[string][]string; param name is key; params values is []string
+	params, err := url.ParseQuery(u.RawQuery) // Returns URL decoded values
+	if err != nil {
+		panic(err)
+	}
+
+	if len(params) > 0 { // There is at least 1 query parameter
+		paramNames := []string{} // We use this to sort the parameter key names
+		for paramName := range params {
+			paramNames = append(paramNames, paramName) // paramNames must be lowercase
+		}
+		sort.Strings(paramNames)
+
+		for _, paramName := range paramNames {
+			paramValues := params[paramName]
+			sort.Strings(paramValues)
+
+			// Join the sorted key values separated by ','
+			// Then prepend "keyName:"; then add this string to the buffer
+			cr.WriteString("\n" + paramName + ":" + strings.Join(paramValues, ","))
+		}
+	}
+	return string(cr.Bytes())
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zc_credential_token.go

@@ -0,0 +1,126 @@
+package azblob
+
+import (
+	"context"
+	"sync/atomic"
+
+	"runtime"
+	"sync"
+	"time"
+
+	"github.com/Azure/azure-pipeline-go/pipeline"
+)
+
+// TokenCredential represents a token credential (which is also a pipeline.Factory).
+type TokenCredential interface {
+	Credential
+	Token() string
+	SetToken(newToken string)
+}
+
+// NewTokenCredential creates a token credential for use with role-based access control (RBAC) access to Azure Storage
+// resources. You initialize the TokenCredential with an initial token value. If you pass a non-nil value for
+// tokenRefresher, then the function you pass will be called immediately (so it can refresh and change the
+// TokenCredential's token value by calling SetToken; your tokenRefresher function must return a time.Duration
+// indicating how long the TokenCredential object should wait before calling your tokenRefresher function again.
+func NewTokenCredential(initialToken string, tokenRefresher func(credential TokenCredential) time.Duration) TokenCredential {
+	tc := &tokenCredential{}
+	tc.SetToken(initialToken) // We dont' set it above to guarantee atomicity
+	if tokenRefresher == nil {
+		return tc // If no callback specified, return the simple tokenCredential
+	}
+
+	tcwr := &tokenCredentialWithRefresh{token: tc}
+	tcwr.token.startRefresh(tokenRefresher)
+	runtime.SetFinalizer(tcwr, func(deadTC *tokenCredentialWithRefresh) {
+		deadTC.token.stopRefresh()
+		deadTC.token = nil //  Sanity (not really required)
+	})
+	return tcwr
+}
+
+// tokenCredentialWithRefresh is a wrapper over a token credential.
+// When this wrapper object gets GC'd, it stops the tokenCredential's timer
+// which allows the tokenCredential object to also be GC'd.
+type tokenCredentialWithRefresh struct {
+	token *tokenCredential
+}
+
+// credentialMarker is a package-internal method that exists just to satisfy the Credential interface.
+func (*tokenCredentialWithRefresh) credentialMarker() {}
+
+// Token returns the current token value
+func (f *tokenCredentialWithRefresh) Token() string { return f.token.Token() }
+
+// SetToken changes the current token value
+func (f *tokenCredentialWithRefresh) SetToken(token string) { f.token.SetToken(token) }
+
+// New satisfies pipeline.Factory's New method creating a pipeline policy object.
+func (f *tokenCredentialWithRefresh) New(next pipeline.Policy, po *pipeline.PolicyOptions) pipeline.Policy {
+	return f.token.New(next, po)
+}
+
+///////////////////////////////////////////////////////////////////////////////
+
+// tokenCredential is a pipeline.Factory is the credential's policy factory.
+type tokenCredential struct {
+	token atomic.Value
+
+	// The members below are only used if the user specified a tokenRefresher callback function.
+	timer          *time.Timer
+	tokenRefresher func(c TokenCredential) time.Duration
+	lock           sync.Mutex
+	stopped        bool
+}
+
+// credentialMarker is a package-internal method that exists just to satisfy the Credential interface.
+func (*tokenCredential) credentialMarker() {}
+
+// Token returns the current token value
+func (f *tokenCredential) Token() string { return f.token.Load().(string) }
+
+// SetToken changes the current token value
+func (f *tokenCredential) SetToken(token string) { f.token.Store(token) }
+
+// startRefresh calls refresh which immediately calls tokenRefresher
+// and then starts a timer to call tokenRefresher in the future.
+func (f *tokenCredential) startRefresh(tokenRefresher func(c TokenCredential) time.Duration) {
+	f.tokenRefresher = tokenRefresher
+	f.stopped = false // In case user calls StartRefresh, StopRefresh, & then StartRefresh again
+	f.refresh()
+}
+
+// refresh calls the user's tokenRefresher so they can refresh the token (by
+// calling SetToken) and then starts another time (based on the returned duration)
+// in order to refresh the token again in the future.
+func (f *tokenCredential) refresh() {
+	d := f.tokenRefresher(f) // Invoke the user's refresh callback outside of the lock
+	f.lock.Lock()
+	if !f.stopped {
+		f.timer = time.AfterFunc(d, f.refresh)
+	}
+	f.lock.Unlock()
+}
+
+// stopRefresh stops any pending timer and sets stopped field to true to prevent
+// any new timer from starting.
+// NOTE: Stopping the timer allows the GC to destroy the tokenCredential object.
+func (f *tokenCredential) stopRefresh() {
+	f.lock.Lock()
+	f.stopped = true
+	if f.timer != nil {
+		f.timer.Stop()
+	}
+	f.lock.Unlock()
+}
+
+// New satisfies pipeline.Factory's New method creating a pipeline policy object.
+func (f *tokenCredential) New(next pipeline.Policy, po *pipeline.PolicyOptions) pipeline.Policy {
+	return pipeline.PolicyFunc(func(ctx context.Context, request pipeline.Request) (pipeline.Response, error) {
+		if request.URL.Scheme != "https" {
+			panic("Token credentials require a URL using the https protocol scheme.")
+		}
+		request.Header[headerAuthorization] = []string{"Bearer " + f.Token()}
+		return next.Do(ctx, request)
+	})
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zc_mmf_unix.go

@@ -0,0 +1,27 @@
+// +build linux darwin freebsd
+
+package azblob
+
+import (
+	"os"
+	"syscall"
+)
+
+type mmf []byte
+
+func newMMF(file *os.File, writable bool, offset int64, length int) (mmf, error) {
+	prot, flags := syscall.PROT_READ, syscall.MAP_SHARED // Assume read-only
+	if writable {
+		prot, flags = syscall.PROT_READ|syscall.PROT_WRITE, syscall.MAP_SHARED
+	}
+	addr, err := syscall.Mmap(int(file.Fd()), offset, length, prot, flags)
+	return mmf(addr), err
+}
+
+func (m *mmf) unmap() {
+	err := syscall.Munmap(*m)
+	*m = nil
+	if err != nil {
+		panic(err)
+	}
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zc_mmf_windows.go

@@ -0,0 +1,38 @@
+package azblob
+
+import (
+	"os"
+	"reflect"
+	"syscall"
+	"unsafe"
+)
+
+type mmf []byte
+
+func newMMF(file *os.File, writable bool, offset int64, length int) (mmf, error) {
+	prot, access := uint32(syscall.PAGE_READONLY), uint32(syscall.FILE_MAP_READ) // Assume read-only
+	if writable {
+		prot, access = uint32(syscall.PAGE_READWRITE), uint32(syscall.FILE_MAP_WRITE)
+	}
+	hMMF, errno := syscall.CreateFileMapping(syscall.Handle(file.Fd()), nil, prot, uint32(int64(length)>>32), uint32(int64(length)&0xffffffff), nil)
+	if hMMF == 0 {
+		return nil, os.NewSyscallError("CreateFileMapping", errno)
+	}
+	defer syscall.CloseHandle(hMMF)
+	addr, errno := syscall.MapViewOfFile(hMMF, access, uint32(offset>>32), uint32(offset&0xffffffff), uintptr(length))
+	m := mmf{}
+	h := (*reflect.SliceHeader)(unsafe.Pointer(&m))
+	h.Data = addr
+	h.Len = length
+	h.Cap = h.Len
+	return m, nil
+}
+
+func (m *mmf) unmap() {
+	addr := uintptr(unsafe.Pointer(&(([]byte)(*m)[0])))
+	*m = mmf{}
+	err := syscall.UnmapViewOfFile(addr)
+	if err != nil {
+		panic(err)
+	}
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zc_pipeline.go

@@ -0,0 +1,46 @@
+package azblob
+
+import (
+	"github.com/Azure/azure-pipeline-go/pipeline"
+)
+
+// PipelineOptions is used to configure a request policy pipeline's retry policy and logging.
+type PipelineOptions struct {
+	// Log configures the pipeline's logging infrastructure indicating what information is logged and where.
+	Log pipeline.LogOptions
+
+	// Retry configures the built-in retry policy behavior.
+	Retry RetryOptions
+
+	// RequestLog configures the built-in request logging policy.
+	RequestLog RequestLogOptions
+
+	// Telemetry configures the built-in telemetry policy behavior.
+	Telemetry TelemetryOptions
+}
+
+// NewPipeline creates a Pipeline using the specified credentials and options.
+func NewPipeline(c Credential, o PipelineOptions) pipeline.Pipeline {
+	if c == nil {
+		panic("c can't be nil")
+	}
+
+	// Closest to API goes first; closest to the wire goes last
+	f := []pipeline.Factory{
+		NewTelemetryPolicyFactory(o.Telemetry),
+		NewUniqueRequestIDPolicyFactory(),
+		NewRetryPolicyFactory(o.Retry),
+	}
+
+	if _, ok := c.(*anonymousCredentialPolicyFactory); !ok {
+		// For AnonymousCredential, we optimize out the policy factory since it doesn't do anything
+		// NOTE: The credential's policy factory must appear close to the wire so it can sign any
+		// changes made by other factories (like UniqueRequestIDPolicyFactory)
+		f = append(f, c)
+	}
+	f = append(f,
+		pipeline.MethodFactoryMarker(), // indicates at what stage in the pipeline the method factory is invoked
+		NewRequestLogPolicyFactory(o.RequestLog))
+
+	return pipeline.NewPipeline(f, pipeline.Options{HTTPSender: nil, Log: o.Log})
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zc_policy_request_log.go

@@ -0,0 +1,150 @@
+package azblob
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"net/http"
+	"net/url"
+	"runtime"
+	"strings"
+	"time"
+
+	"github.com/Azure/azure-pipeline-go/pipeline"
+)
+
+// RequestLogOptions configures the retry policy's behavior.
+type RequestLogOptions struct {
+	// LogWarningIfTryOverThreshold logs a warning if a tried operation takes longer than the specified
+	// duration (-1=no logging; 0=default threshold).
+	LogWarningIfTryOverThreshold time.Duration
+}
+
+func (o RequestLogOptions) defaults() RequestLogOptions {
+	if o.LogWarningIfTryOverThreshold == 0 {
+		// It would be good to relate this to https://azure.microsoft.com/en-us/support/legal/sla/storage/v1_2/
+		// But this monitors the time to get the HTTP response; NOT the time to download the response body.
+		o.LogWarningIfTryOverThreshold = 3 * time.Second // Default to 3 seconds
+	}
+	return o
+}
+
+// NewRequestLogPolicyFactory creates a RequestLogPolicyFactory object configured using the specified options.
+func NewRequestLogPolicyFactory(o RequestLogOptions) pipeline.Factory {
+	o = o.defaults() // Force defaults to be calculated
+	return pipeline.FactoryFunc(func(next pipeline.Policy, po *pipeline.PolicyOptions) pipeline.PolicyFunc {
+		// These variables are per-policy; shared by multiple calls to Do
+		var try int32
+		operationStart := time.Now() // If this is the 1st try, record the operation state time
+		return func(ctx context.Context, request pipeline.Request) (response pipeline.Response, err error) {
+			try++ // The first try is #1 (not #0)
+
+			// Log the outgoing request as informational
+			if po.ShouldLog(pipeline.LogInfo) {
+				b := &bytes.Buffer{}
+				fmt.Fprintf(b, "==> OUTGOING REQUEST (Try=%d)\n", try)
+				pipeline.WriteRequestWithResponse(b, prepareRequestForLogging(request), nil, nil)
+				po.Log(pipeline.LogInfo, b.String())
+			}
+
+			// Set the time for this particular retry operation and then Do the operation.
+			tryStart := time.Now()
+			response, err = next.Do(ctx, request) // Make the request
+			tryEnd := time.Now()
+			tryDuration := tryEnd.Sub(tryStart)
+			opDuration := tryEnd.Sub(operationStart)
+
+			logLevel, forceLog := pipeline.LogInfo, false // Default logging information
+
+			// If the response took too long, we'll upgrade to warning.
+			if o.LogWarningIfTryOverThreshold > 0 && tryDuration > o.LogWarningIfTryOverThreshold {
+				// Log a warning if the try duration exceeded the specified threshold
+				logLevel, forceLog = pipeline.LogWarning, true
+			}
+
+			if err == nil { // We got a response from the service
+				sc := response.Response().StatusCode
+				if ((sc >= 400 && sc <= 499) && sc != http.StatusNotFound && sc != http.StatusConflict && sc != http.StatusPreconditionFailed && sc != http.StatusRequestedRangeNotSatisfiable) || (sc >= 500 && sc <= 599) {
+					logLevel, forceLog = pipeline.LogError, true // Promote to Error any 4xx (except those listed is an error) or any 5xx
+				} else {
+					// For other status codes, we leave the level as is.
+				}
+			} else { // This error did not get an HTTP response from the service; upgrade the severity to Error
+				logLevel, forceLog = pipeline.LogError, true
+			}
+
+			if shouldLog := po.ShouldLog(logLevel); forceLog || shouldLog {
+				// We're going to log this; build the string to log
+				b := &bytes.Buffer{}
+				slow := ""
+				if o.LogWarningIfTryOverThreshold > 0 && tryDuration > o.LogWarningIfTryOverThreshold {
+					slow = fmt.Sprintf("[SLOW >%v]", o.LogWarningIfTryOverThreshold)
+				}
+				fmt.Fprintf(b, "==> REQUEST/RESPONSE (Try=%d/%v%s, OpTime=%v) -- ", try, tryDuration, slow, opDuration)
+				if err != nil { // This HTTP request did not get a response from the service
+					fmt.Fprint(b, "REQUEST ERROR\n")
+				} else {
+					if logLevel == pipeline.LogError {
+						fmt.Fprint(b, "RESPONSE STATUS CODE ERROR\n")
+					} else {
+						fmt.Fprint(b, "RESPONSE SUCCESSFULLY RECEIVED\n")
+					}
+				}
+
+				pipeline.WriteRequestWithResponse(b, prepareRequestForLogging(request), response.Response(), err)
+				if logLevel <= pipeline.LogError {
+					b.Write(stack()) // For errors (or lower levels), we append the stack trace (an expensive operation)
+				}
+				msg := b.String()
+
+				if forceLog {
+					pipeline.ForceLog(logLevel, msg)
+				}
+				if shouldLog {
+					po.Log(logLevel, msg)
+				}
+			}
+			return response, err
+		}
+	})
+}
+
+func redactSigQueryParam(rawQuery string) (bool, string) {
+	rawQuery = strings.ToLower(rawQuery) // lowercase the string so we can look for ?sig= and &sig=
+	sigFound := strings.Contains(rawQuery, "?sig=")
+	if !sigFound {
+		sigFound = strings.Contains(rawQuery, "&sig=")
+		if !sigFound {
+			return sigFound, rawQuery // [?|&]sig= not found; return same rawQuery passed in (no memory allocation)
+		}
+	}
+	// [?|&]sig= found, redact its value
+	values, _ := url.ParseQuery(rawQuery)
+	for name := range values {
+		if strings.EqualFold(name, "sig") {
+			values[name] = []string{"REDACTED"}
+		}
+	}
+	return sigFound, values.Encode()
+}
+
+func prepareRequestForLogging(request pipeline.Request) *http.Request {
+	req := request
+	if sigFound, rawQuery := redactSigQueryParam(req.URL.RawQuery); sigFound {
+		// Make copy so we don't destroy the query parameters we actually need to send in the request
+		req = request.Copy()
+		req.Request.URL.RawQuery = rawQuery
+	}
+	return req.Request
+}
+
+func stack() []byte {
+	buf := make([]byte, 1024)
+	for {
+		n := runtime.Stack(buf, false)
+		if n < len(buf) {
+			return buf[:n]
+		}
+		buf = make([]byte, 2*len(buf))
+	}
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zc_policy_retry.go

@@ -0,0 +1,318 @@
+package azblob
+
+import (
+	"context"
+	"math/rand"
+	"net"
+	"net/http"
+	"strconv"
+	"time"
+
+	"github.com/Azure/azure-pipeline-go/pipeline"
+	"io/ioutil"
+	"io"
+)
+
+// RetryPolicy tells the pipeline what kind of retry policy to use. See the RetryPolicy* constants.
+type RetryPolicy int32
+
+const (
+	// RetryPolicyExponential tells the pipeline to use an exponential back-off retry policy
+	RetryPolicyExponential RetryPolicy = 0
+
+	// RetryPolicyFixed tells the pipeline to use a fixed back-off retry policy
+	RetryPolicyFixed RetryPolicy = 1
+)
+
+// RetryOptions configures the retry policy's behavior.
+type RetryOptions struct {
+	// Policy tells the pipeline what kind of retry policy to use. See the RetryPolicy* constants.\
+	// A value of zero means that you accept our default policy.
+	Policy RetryPolicy
+
+	// MaxTries specifies the maximum number of attempts an operation will be tried before producing an error (0=default).
+	// A value of zero means that you accept our default policy. A value of 1 means 1 try and no retries.
+	MaxTries int32
+
+	// TryTimeout indicates the maximum time allowed for any single try of an HTTP request.
+	// A value of zero means that you accept our default timeout. NOTE: When transferring large amounts
+	// of data, the default TryTimeout will probably not be sufficient. You should override this value
+	// based on the bandwidth available to the host machine and proximity to the Storage service. A good
+	// starting point may be something like (60 seconds per MB of anticipated-payload-size).
+	TryTimeout time.Duration
+
+	// RetryDelay specifies the amount of delay to use before retrying an operation (0=default).
+	// When RetryPolicy is specified as RetryPolicyExponential, the delay increases exponentially
+	// with each retry up to a maximum specified by MaxRetryDelay.
+	// If you specify 0, then you must also specify 0 for MaxRetryDelay.
+	// If you specify RetryDelay, then you must also specify MaxRetryDelay, and MaxRetryDelay should be
+	// equal to or greater than RetryDelay.
+	RetryDelay time.Duration
+
+	// MaxRetryDelay specifies the maximum delay allowed before retrying an operation (0=default).
+	// If you specify 0, then you must also specify 0 for RetryDelay.
+	MaxRetryDelay time.Duration
+
+	// RetryReadsFromSecondaryHost specifies whether the retry policy should retry a read operation against another host.
+	// If RetryReadsFromSecondaryHost is "" (the default) then operations are not retried against another host.
+	// NOTE: Before setting this field, make sure you understand the issues around reading stale & potentially-inconsistent
+	// data at this webpage: https://docs.microsoft.com/en-us/azure/storage/common/storage-designing-ha-apps-with-ragrs
+	RetryReadsFromSecondaryHost string	// Comment this our for non-Blob SDKs
+}
+
+func (o RetryOptions) retryReadsFromSecondaryHost() string {
+	return o.RetryReadsFromSecondaryHost	// This is for the Blob SDK only
+	//return "" // This is for non-blob SDKs
+}
+
+func (o RetryOptions) defaults() RetryOptions {
+	if o.Policy != RetryPolicyExponential && o.Policy != RetryPolicyFixed {
+		panic("RetryPolicy must be RetryPolicyExponential or RetryPolicyFixed")
+	}
+	if o.MaxTries < 0 {
+		panic("MaxTries must be >= 0")
+	}
+	if o.TryTimeout < 0 || o.RetryDelay < 0 || o.MaxRetryDelay < 0 {
+		panic("TryTimeout, RetryDelay, and MaxRetryDelay must all be >= 0")
+	}
+	if o.RetryDelay > o.MaxRetryDelay {
+		panic("RetryDelay must be <= MaxRetryDelay")
+	}
+	if (o.RetryDelay == 0 && o.MaxRetryDelay != 0) || (o.RetryDelay != 0 && o.MaxRetryDelay == 0) {
+		panic("Both RetryDelay and MaxRetryDelay must be 0 or neither can be 0")
+	}
+
+	IfDefault := func(current *time.Duration, desired time.Duration) {
+		if *current == time.Duration(0) {
+			*current = desired
+		}
+	}
+
+	// Set defaults if unspecified
+	if o.MaxTries == 0 {
+		o.MaxTries = 4
+	}
+	switch o.Policy {
+	case RetryPolicyExponential:
+		IfDefault(&o.TryTimeout, 1*time.Minute)
+		IfDefault(&o.RetryDelay, 4*time.Second)
+		IfDefault(&o.MaxRetryDelay, 120*time.Second)
+
+	case RetryPolicyFixed:
+		IfDefault(&o.TryTimeout, 1*time.Minute)
+		IfDefault(&o.RetryDelay, 30*time.Second)
+		IfDefault(&o.MaxRetryDelay, 120*time.Second)
+	}
+	return o
+}
+
+func (o RetryOptions) calcDelay(try int32) time.Duration { // try is >=1; never 0
+	pow := func(number int64, exponent int32) int64 { // pow is nested helper function
+		var result int64 = 1
+		for n := int32(0); n < exponent; n++ {
+			result *= number
+		}
+		return result
+	}
+
+	delay := time.Duration(0)
+	switch o.Policy {
+	case RetryPolicyExponential:
+		delay = time.Duration(pow(2, try-1)-1) * o.RetryDelay
+
+	case RetryPolicyFixed:
+		if try > 1 { // Any try after the 1st uses the fixed delay
+			delay = o.RetryDelay
+		}
+	}
+
+	// Introduce some jitter:  [0.0, 1.0) / 2 = [0.0, 0.5) + 0.8 = [0.8, 1.3)
+	delay = time.Duration(delay.Seconds() * (rand.Float64()/2 + 0.8) * float64(time.Second)) // NOTE: We want math/rand; not crypto/rand
+	if delay > o.MaxRetryDelay {
+		delay = o.MaxRetryDelay
+	}
+	return delay
+}
+
+// NewRetryPolicyFactory creates a RetryPolicyFactory object configured using the specified options.
+func NewRetryPolicyFactory(o RetryOptions) pipeline.Factory {
+	o = o.defaults() // Force defaults to be calculated
+	return pipeline.FactoryFunc(func(next pipeline.Policy, po *pipeline.PolicyOptions) pipeline.PolicyFunc {
+		return func(ctx context.Context, request pipeline.Request) (response pipeline.Response, err error) {
+			// Before each try, we'll select either the primary or secondary URL.
+			primaryTry := int32(0) // This indicates how many tries we've attempted against the primary DC
+
+			// We only consider retrying against a secondary if we have a read request (GET/HEAD) AND this policy has a Secondary URL it can use
+			considerSecondary := (request.Method == http.MethodGet || request.Method == http.MethodHead) && o.retryReadsFromSecondaryHost() != ""
+
+			// Exponential retry algorithm: ((2 ^ attempt) - 1) * delay * random(0.8, 1.2)
+			// When to retry: connection failure or temporary/timeout. NOTE: StorageError considers HTTP 500/503 as temporary & is therefore retryable
+			// If using a secondary:
+			//    Even tries go against primary; odd tries go against the secondary
+			//    For a primary wait ((2 ^ primaryTries - 1) * delay * random(0.8, 1.2)
+			//    If secondary gets a 404, don't fail, retry but future retries are only against the primary
+			//    When retrying against a secondary, ignore the retry count and wait (.1 second * random(0.8, 1.2))
+			for try := int32(1); try <= o.MaxTries; try++ {
+				logf("\n=====> Try=%d\n", try)
+
+				// Determine which endpoint to try. It's primary if there is no secondary or if it is an add # attempt.
+				tryingPrimary := !considerSecondary || (try%2 == 1)
+				// Select the correct host and delay
+				if tryingPrimary {
+					primaryTry++
+					delay := o.calcDelay(primaryTry)
+					logf("Primary try=%d, Delay=%v\n", primaryTry, delay)
+					time.Sleep(delay) // The 1st try returns 0 delay
+				} else {
+					delay := time.Second * time.Duration(rand.Float32()/2+0.8)
+					logf("Secondary try=%d, Delay=%v\n", try-primaryTry, delay)
+					time.Sleep(delay) // Delay with some jitter before trying secondary
+				}
+
+				// Clone the original request to ensure that each try starts with the original (unmutated) request.
+				requestCopy := request.Copy()
+
+				// For each try, seek to the beginning of the Body stream. We do this even for the 1st try because
+				// the stream may not be at offset 0 when we first get it and we want the same behavior for the
+				// 1st try as for additional tries.
+				if err = requestCopy.RewindBody(); err != nil {
+					panic(err)
+				}
+				if !tryingPrimary {
+					requestCopy.Request.URL.Host = o.retryReadsFromSecondaryHost()
+				}
+
+				// Set the server-side timeout query parameter "timeout=[seconds]"
+				timeout := int32(o.TryTimeout.Seconds()) // Max seconds per try
+				if deadline, ok := ctx.Deadline(); ok {  // If user's ctx has a deadline, make the timeout the smaller of the two
+					t := int32(deadline.Sub(time.Now()).Seconds()) // Duration from now until user's ctx reaches its deadline
+					logf("MaxTryTimeout=%d secs, TimeTilDeadline=%d sec\n", timeout, t)
+					if t < timeout {
+						timeout = t
+					}
+					if timeout < 0 {
+						timeout = 0 // If timeout ever goes negative, set it to zero; this happen while debugging
+					}
+					logf("TryTimeout adjusted to=%d sec\n", timeout)
+				}
+				q := requestCopy.Request.URL.Query()
+				q.Set("timeout", strconv.Itoa(int(timeout+1))) // Add 1 to "round up"
+				requestCopy.Request.URL.RawQuery = q.Encode()
+				logf("Url=%s\n", requestCopy.Request.URL.String())
+
+				// Set the time for this particular retry operation and then Do the operation.
+				tryCtx, tryCancel := context.WithTimeout(ctx, time.Second*time.Duration(timeout))
+				//requestCopy.Body = &deadlineExceededReadCloser{r: requestCopy.Request.Body}
+				response, err = next.Do(tryCtx, requestCopy) // Make the request
+				/*err = improveDeadlineExceeded(err)
+				if err == nil {
+					response.Response().Body = &deadlineExceededReadCloser{r: response.Response().Body}
+				}*/
+				logf("Err=%v, response=%v\n", err, response)
+
+				action := "" // This MUST get changed within the switch code below
+				switch {
+				case ctx.Err() != nil:
+					action = "NoRetry: Op timeout"
+				case !tryingPrimary && response != nil && response.Response().StatusCode == http.StatusNotFound:
+					// If attempt was against the secondary & it returned a StatusNotFound (404), then
+					// the resource was not found. This may be due to replication delay. So, in this
+					// case, we'll never try the secondary again for this operation.
+					considerSecondary = false
+					action = "Retry: Secondary URL returned 404"
+				case err != nil:
+					// NOTE: Protocol Responder returns non-nil if REST API returns invalid status code for the invoked operation
+					if netErr, ok := err.(net.Error); ok && (netErr.Temporary() || netErr.Timeout()) {
+						action = "Retry: net.Error and Temporary() or Timeout()"
+					} else {
+						action = "NoRetry: unrecognized error"
+					}
+				default:
+					action = "NoRetry: successful HTTP request" // no error
+				}
+
+				logf("Action=%s\n", action)
+				// fmt.Println(action + "\n") // This is where we could log the retry operation; action is why we're retrying
+				if action[0] != 'R' { // Retry only if action starts with 'R'
+					if err != nil {
+						tryCancel() // If we're returning an error, cancel this current/last per-retry timeout context
+					} else {
+						// TODO: Right now, we've decided to leak the per-try Context until the user's Context is canceled.
+						// Another option is that we wrap the last per-try context in a body and overwrite the Response's Body field with our wrapper.
+						// So, when the user closes the Body, the our per-try context gets closed too.
+						// Another option, is that the Last Policy do this wrapping for a per-retry context (not for the user's context)
+						_ = tryCancel // So, for now, we don't call cancel: cancel()
+					}
+					break // Don't retry
+				}
+				if response != nil && response.Response() != nil && response.Response().Body != nil {
+					// If we're going to retry and we got a previous response, then flush its body to avoid leaking its TCP connection
+					body := response.Response().Body
+					io.Copy(ioutil.Discard, body)
+					body.Close()
+				}
+				// If retrying, cancel the current per-try timeout context
+				tryCancel()
+			}
+			return response, err // Not retryable or too many retries; return the last response/error
+		}
+	})
+}
+
+// According to https://github.com/golang/go/wiki/CompilerOptimizations, the compiler will inline this method and hopefully optimize all calls to it away
+var logf = func(format string, a ...interface{}) {}
+
+// Use this version to see the retry method's code path (import "fmt")
+//var logf = fmt.Printf
+
+/*
+type deadlineExceededReadCloser struct {
+	r io.ReadCloser
+}
+
+func (r *deadlineExceededReadCloser) Read(p []byte) (int, error) {
+	n, err := 0, io.EOF
+	if r.r != nil {
+		n, err = r.r.Read(p)
+	}
+	return n, improveDeadlineExceeded(err)
+}
+func (r *deadlineExceededReadCloser) Seek(offset int64, whence int) (int64, error) {
+	// For an HTTP request, the ReadCloser MUST also implement seek
+	// For an HTTP response, Seek MUST not be called (or this will panic)
+	o, err := r.r.(io.Seeker).Seek(offset, whence)
+	return o, improveDeadlineExceeded(err)
+}
+func (r *deadlineExceededReadCloser) Close() error {
+	if c, ok := r.r.(io.Closer); ok {
+		c.Close()
+	}
+	return nil
+}
+
+// timeoutError is the internal struct that implements our richer timeout error.
+type deadlineExceeded struct {
+	responseError
+}
+
+var _ net.Error = (*deadlineExceeded)(nil) // Ensure deadlineExceeded implements the net.Error interface at compile time
+
+// improveDeadlineExceeded creates a timeoutError object that implements the error interface IF cause is a context.DeadlineExceeded error.
+func improveDeadlineExceeded(cause error) error {
+	// If cause is not DeadlineExceeded, return the same error passed in.
+	if cause != context.DeadlineExceeded {
+		return cause
+	}
+	// Else, convert DeadlineExceeded to our timeoutError which gives a richer string message
+	return &deadlineExceeded{
+		responseError: responseError{
+			ErrorNode: pipeline.ErrorNode{}.Initialize(cause, 3),
+		},
+	}
+}
+
+// Error implements the error interface's Error method to return a string representation of the error.
+func (e *deadlineExceeded) Error() string {
+	return e.ErrorNode.Error("context deadline exceeded; when creating a pipeline, consider increasing RetryOptions' TryTimeout field")
+}
+*/

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zc_policy_telemetry.go

@@ -0,0 +1,51 @@
+package azblob
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"os"
+	"runtime"
+
+	"github.com/Azure/azure-pipeline-go/pipeline"
+)
+
+// TelemetryOptions configures the telemetry policy's behavior.
+type TelemetryOptions struct {
+	// Value is a string prepended to each request's User-Agent and sent to the service.
+	// The service records the user-agent in logs for diagnostics and tracking of client requests.
+	Value string
+}
+
+// NewTelemetryPolicyFactory creates a factory that can create telemetry policy objects
+// which add telemetry information to outgoing HTTP requests.
+func NewTelemetryPolicyFactory(o TelemetryOptions) pipeline.Factory {
+	b := &bytes.Buffer{}
+	b.WriteString(o.Value)
+	if b.Len() > 0 {
+		b.WriteRune(' ')
+	}
+	fmt.Fprintf(b, "Azure-Storage/%s %s", serviceLibVersion, platformInfo)
+	telemetryValue := b.String()
+
+	return pipeline.FactoryFunc(func(next pipeline.Policy, po *pipeline.PolicyOptions) pipeline.PolicyFunc {
+		return func(ctx context.Context, request pipeline.Request) (pipeline.Response, error) {
+			request.Header.Set("User-Agent", telemetryValue)
+			return next.Do(ctx, request)
+		}
+	})
+}
+
+// NOTE: the ONLY function that should write to this variable is this func
+var platformInfo = func() string {
+	// Azure-Storage/version (runtime; os type and version)”
+	// Azure-Storage/1.4.0 (NODE-VERSION v4.5.0; Windows_NT 10.0.14393)'
+	operatingSystem := runtime.GOOS // Default OS string
+	switch operatingSystem {
+	case "windows":
+		operatingSystem = os.Getenv("OS") // Get more specific OS information
+	case "linux": // accept default OS info
+	case "freebsd": //  accept default OS info
+	}
+	return fmt.Sprintf("(%s; %s)", runtime.Version(), operatingSystem)
+}()

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zc_policy_unique_request_id.go

@@ -0,0 +1,24 @@
+package azblob
+
+import (
+	"context"
+
+	"github.com/Azure/azure-pipeline-go/pipeline"
+)
+
+// NewUniqueRequestIDPolicyFactory creates a UniqueRequestIDPolicyFactory object
+// that sets the request's x-ms-client-request-id header if it doesn't already exist.
+func NewUniqueRequestIDPolicyFactory() pipeline.Factory {
+	return pipeline.FactoryFunc(func(next pipeline.Policy, po *pipeline.PolicyOptions) pipeline.PolicyFunc {
+		// This is Policy's Do method:
+		return func(ctx context.Context, request pipeline.Request) (pipeline.Response, error) {
+			id := request.Header.Get(xMsClientRequestID)
+			if id == "" { // Add a unique request ID if the caller didn't specify one already
+				request.Header.Set(xMsClientRequestID, newUUID().String())
+			}
+			return next.Do(ctx, request)
+		}
+	})
+}
+
+const xMsClientRequestID = "x-ms-client-request-id"

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zc_retry_reader.go

@@ -0,0 +1,122 @@
+package azblob
+
+import (
+	"context"
+	"io"
+	"net"
+	"net/http"
+)
+
+const CountToEnd = 0
+
+// HTTPGetter is a function type that refers to a method that performs an HTTP GET operation.
+type HTTPGetter func(ctx context.Context, i HTTPGetterInfo) (*http.Response, error)
+
+// HTTPGetterInfo is passed to an HTTPGetter function passing it parameters
+// that should be used to make an HTTP GET request.
+type HTTPGetterInfo struct {
+	// Offset specifies the start offset that should be used when
+	// creating the HTTP GET request's Range header
+	Offset int64
+
+	// Count specifies the count of bytes that should be used to calculate
+	// the end offset when creating the HTTP GET request's Range header
+	Count int64
+
+	// ETag specifies the resource's etag that should be used when creating
+	// the HTTP GET request's If-Match header
+	ETag ETag
+}
+
+// RetryReaderOptions contains properties which can help to decide when to do retry.
+type RetryReaderOptions struct {
+	// MaxRetryRequests specifies the maximum number of HTTP GET requests that will be made
+	// while reading from a RetryReader. A value of zero means that no additional HTTP
+	// GET requests will be made.
+	MaxRetryRequests   int
+	doInjectError      bool
+	doInjectErrorRound int
+}
+
+// retryReader implements io.ReaderCloser methods.
+// retryReader tries to read from response, and if there is retriable network error
+// returned during reading, it will retry according to retry reader option through executing
+// user defined action with provided data to get a new response, and continue the overall reading process
+// through reading from the new response.
+type retryReader struct {
+	ctx             context.Context
+	response        *http.Response
+	info            HTTPGetterInfo
+	countWasBounded bool
+	o               RetryReaderOptions
+	getter          HTTPGetter
+}
+
+// NewRetryReader creates a retry reader.
+func NewRetryReader(ctx context.Context, initialResponse *http.Response,
+	info HTTPGetterInfo, o RetryReaderOptions, getter HTTPGetter) io.ReadCloser {
+	if getter == nil {
+		panic("getter must not be nil")
+	}
+	if info.Count < 0 {
+		panic("info.Count must be >= 0")
+	}
+	if o.MaxRetryRequests < 0 {
+		panic("o.MaxRetryRequests must be >= 0")
+	}
+	return &retryReader{ctx: ctx, getter: getter, info: info, countWasBounded: info.Count != CountToEnd, response: initialResponse, o: o}
+}
+
+func (s *retryReader) Read(p []byte) (n int, err error) {
+	for try := 0; ; try++ {
+		//fmt.Println(try)       // Comment out for debugging.
+		if s.countWasBounded && s.info.Count == CountToEnd {
+			// User specified an original count and the remaining bytes are 0, return 0, EOF
+			return 0, io.EOF
+		}
+
+		if s.response == nil { // We don't have a response stream to read from, try to get one.
+			response, err := s.getter(s.ctx, s.info)
+			if err != nil {
+				return 0, err
+			}
+			// Successful GET; this is the network stream we'll read from.
+			s.response = response
+		}
+		n, err := s.response.Body.Read(p) // Read from the stream
+
+		// Injection mechanism for testing.
+		if s.o.doInjectError && try == s.o.doInjectErrorRound {
+			err = &net.DNSError{IsTemporary: true}
+		}
+
+		// We successfully read data or end EOF.
+		if err == nil || err == io.EOF {
+			s.info.Offset += int64(n) // Increments the start offset in case we need to make a new HTTP request in the future
+			if s.info.Count != CountToEnd {
+				s.info.Count -= int64(n) // Decrement the count in case we need to make a new HTTP request in the future
+			}
+			return n, err // Return the return to the caller
+		}
+		s.Close()        // Error, close stream
+		s.response = nil // Our stream is no longer good
+
+		// Check the retry count and error code, and decide whether to retry.
+		if try >= s.o.MaxRetryRequests {
+			return n, err // All retries exhausted
+		}
+
+		if netErr, ok := err.(net.Error); ok && (netErr.Timeout() || netErr.Temporary()) {
+			continue
+			// Loop around and try to get and read from new stream.
+		}
+		return n, err // Not retryable, just return
+	}
+}
+
+func (s *retryReader) Close() error {
+	if s.response != nil && s.response.Body != nil {
+		return s.response.Body.Close()
+	}
+	return nil
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zc_sas_account.go

@@ -0,0 +1,217 @@
+package azblob
+
+import (
+	"bytes"
+	"fmt"
+	"strings"
+	"time"
+)
+
+// AccountSASSignatureValues is used to generate a Shared Access Signature (SAS) for an Azure Storage account.
+// For more information, see https://docs.microsoft.com/rest/api/storageservices/constructing-an-account-sas
+type AccountSASSignatureValues struct {
+	Version       string      `param:"sv"`  // If not specified, this defaults to SASVersion
+	Protocol      SASProtocol `param:"spr"` // See the SASProtocol* constants
+	StartTime     time.Time   `param:"st"`  // Not specified if IsZero
+	ExpiryTime    time.Time   `param:"se"`  // Not specified if IsZero
+	Permissions   string      `param:"sp"`  // Create by initializing a AccountSASPermissions and then call String()
+	IPRange       IPRange     `param:"sip"`
+	Services      string      `param:"ss"`  // Create by initializing AccountSASServices and then call String()
+	ResourceTypes string      `param:"srt"` // Create by initializing AccountSASResourceTypes and then call String()
+}
+
+// NewSASQueryParameters uses an account's shared key credential to sign this signature values to produce
+// the proper SAS query parameters.
+func (v AccountSASSignatureValues) NewSASQueryParameters(sharedKeyCredential *SharedKeyCredential) SASQueryParameters {
+	// https://docs.microsoft.com/en-us/rest/api/storageservices/Constructing-an-Account-SAS
+	if v.ExpiryTime.IsZero() || v.Permissions == "" || v.ResourceTypes == "" || v.Services == "" {
+		panic("Account SAS is missing at least one of these: ExpiryTime, Permissions, Service, or ResourceType")
+	}
+	if v.Version == "" {
+		v.Version = SASVersion
+	}
+	perms := &AccountSASPermissions{}
+	if err := perms.Parse(v.Permissions); err != nil {
+		panic(err)
+	}
+	v.Permissions = perms.String()
+
+	startTime, expiryTime := FormatTimesForSASSigning(v.StartTime, v.ExpiryTime)
+
+	stringToSign := strings.Join([]string{
+		sharedKeyCredential.AccountName(),
+		v.Permissions,
+		v.Services,
+		v.ResourceTypes,
+		startTime,
+		expiryTime,
+		v.IPRange.String(),
+		string(v.Protocol),
+		v.Version,
+		""}, // That right, the account SAS requires a terminating extra newline
+		"\n")
+
+	signature := sharedKeyCredential.ComputeHMACSHA256(stringToSign)
+	p := SASQueryParameters{
+		// Common SAS parameters
+		version:     v.Version,
+		protocol:    v.Protocol,
+		startTime:   v.StartTime,
+		expiryTime:  v.ExpiryTime,
+		permissions: v.Permissions,
+		ipRange:     v.IPRange,
+
+		// Account-specific SAS parameters
+		services:      v.Services,
+		resourceTypes: v.ResourceTypes,
+
+		// Calculated SAS signature
+		signature: signature,
+	}
+	return p
+}
+
+// The AccountSASPermissions type simplifies creating the permissions string for an Azure Storage Account SAS.
+// Initialize an instance of this type and then call its String method to set AccountSASSignatureValues's Permissions field.
+type AccountSASPermissions struct {
+	Read, Write, Delete, List, Add, Create, Update, Process bool
+}
+
+// String produces the SAS permissions string for an Azure Storage account.
+// Call this method to set AccountSASSignatureValues's Permissions field.
+func (p AccountSASPermissions) String() string {
+	var buffer bytes.Buffer
+	if p.Read {
+		buffer.WriteRune('r')
+	}
+	if p.Write {
+		buffer.WriteRune('w')
+	}
+	if p.Delete {
+		buffer.WriteRune('d')
+	}
+	if p.List {
+		buffer.WriteRune('l')
+	}
+	if p.Add {
+		buffer.WriteRune('a')
+	}
+	if p.Create {
+		buffer.WriteRune('c')
+	}
+	if p.Update {
+		buffer.WriteRune('u')
+	}
+	if p.Process {
+		buffer.WriteRune('p')
+	}
+	return buffer.String()
+}
+
+// Parse initializes the AccountSASPermissions's fields from a string.
+func (p *AccountSASPermissions) Parse(s string) error {
+	*p = AccountSASPermissions{} // Clear out the flags
+	for _, r := range s {
+		switch r {
+		case 'r':
+			p.Read = true
+		case 'w':
+			p.Write = true
+		case 'd':
+			p.Delete = true
+		case 'l':
+			p.List = true
+		case 'a':
+			p.Add = true
+		case 'c':
+			p.Create = true
+		case 'u':
+			p.Update = true
+		case 'p':
+			p.Process = true
+		default:
+			return fmt.Errorf("Invalid permission character: '%v'", r)
+		}
+	}
+	return nil
+}
+
+// The AccountSASServices type simplifies creating the services string for an Azure Storage Account SAS.
+// Initialize an instance of this type and then call its String method to set AccountSASSignatureValues's Services field.
+type AccountSASServices struct {
+	Blob, Queue, File bool
+}
+
+// String produces the SAS services string for an Azure Storage account.
+// Call this method to set AccountSASSignatureValues's Services field.
+func (s AccountSASServices) String() string {
+	var buffer bytes.Buffer
+	if s.Blob {
+		buffer.WriteRune('b')
+	}
+	if s.Queue {
+		buffer.WriteRune('q')
+	}
+	if s.File {
+		buffer.WriteRune('f')
+	}
+	return buffer.String()
+}
+
+// Parse initializes the AccountSASServices' fields from a string.
+func (a *AccountSASServices) Parse(s string) error {
+	*a = AccountSASServices{} // Clear out the flags
+	for _, r := range s {
+		switch r {
+		case 'b':
+			a.Blob = true
+		case 'q':
+			a.Queue = true
+		case 'f':
+			a.File = true
+		default:
+			return fmt.Errorf("Invalid service character: '%v'", r)
+		}
+	}
+	return nil
+}
+
+// The AccountSASResourceTypes type simplifies creating the resource types string for an Azure Storage Account SAS.
+// Initialize an instance of this type and then call its String method to set AccountSASSignatureValues's ResourceTypes field.
+type AccountSASResourceTypes struct {
+	Service, Container, Object bool
+}
+
+// String produces the SAS resource types string for an Azure Storage account.
+// Call this method to set AccountSASSignatureValues's ResourceTypes field.
+func (rt AccountSASResourceTypes) String() string {
+	var buffer bytes.Buffer
+	if rt.Service {
+		buffer.WriteRune('s')
+	}
+	if rt.Container {
+		buffer.WriteRune('c')
+	}
+	if rt.Object {
+		buffer.WriteRune('o')
+	}
+	return buffer.String()
+}
+
+// Parse initializes the AccountSASResourceType's fields from a string.
+func (rt *AccountSASResourceTypes) Parse(s string) error {
+	*rt = AccountSASResourceTypes{} // Clear out the flags
+	for _, r := range s {
+		switch r {
+		case 's':
+			rt.Service = true
+		case 'q':
+			rt.Container = true
+		case 'o':
+			rt.Object = true
+		default:
+			return fmt.Errorf("Invalid resource type: '%v'", r)
+		}
+	}
+	return nil
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zc_sas_query_params.go

@@ -0,0 +1,211 @@
+package azblob
+
+import (
+	"net"
+	"net/url"
+	"strings"
+	"time"
+)
+
+// SASVersion indicates the SAS version.
+const SASVersion = ServiceVersion
+
+type SASProtocol string
+
+const (
+	// SASProtocolHTTPS can be specified for a SAS protocol
+	SASProtocolHTTPS SASProtocol = "https"
+
+	// SASProtocolHTTPSandHTTP can be specified for a SAS protocol
+	SASProtocolHTTPSandHTTP SASProtocol = "https,http"
+)
+
+// FormatTimesForSASSigning converts a time.Time to a snapshotTimeFormat string suitable for a
+// SASField's StartTime or ExpiryTime fields. Returns "" if value.IsZero().
+func FormatTimesForSASSigning(startTime, expiryTime time.Time) (string, string) {
+	ss := ""
+	if !startTime.IsZero() {
+		ss = startTime.Format(SASTimeFormat) // "yyyy-MM-ddTHH:mm:ssZ"
+	}
+	se := ""
+	if !expiryTime.IsZero() {
+		se = expiryTime.Format(SASTimeFormat) // "yyyy-MM-ddTHH:mm:ssZ"
+	}
+	return ss, se
+}
+
+// SASTimeFormat represents the format of a SAS start or expiry time. Use it when formatting/parsing a time.Time.
+const SASTimeFormat = "2006-01-02T15:04:05Z" //"2017-07-27T00:00:00Z" // ISO 8601
+
+// https://docs.microsoft.com/en-us/rest/api/storageservices/constructing-a-service-sas
+
+// A SASQueryParameters object represents the components that make up an Azure Storage SAS' query parameters.
+// You parse a map of query parameters into its fields by calling NewSASQueryParameters(). You add the components
+// to a query parameter map by calling AddToValues().
+// NOTE: Changing any field requires computing a new SAS signature using a XxxSASSignatureValues type.
+//
+// This type defines the components used by all Azure Storage resources (Containers, Blobs, Files, & Queues).
+type SASQueryParameters struct {
+	// All members are immutable or values so copies of this struct are goroutine-safe.
+	version       string      `param:"sv"`
+	services      string      `param:"ss"`
+	resourceTypes string      `param:"srt"`
+	protocol      SASProtocol `param:"spr"`
+	startTime     time.Time   `param:"st"`
+	expiryTime    time.Time   `param:"se"`
+	ipRange       IPRange     `param:"sip"`
+	identifier    string      `param:"si"`
+	resource      string      `param:"sr"`
+	permissions   string      `param:"sp"`
+	signature     string      `param:"sig"`
+}
+
+func (p *SASQueryParameters) Version() string {
+	return p.version
+}
+
+func (p *SASQueryParameters) Services() string {
+	return p.services
+}
+func (p *SASQueryParameters) ResourceTypes() string {
+	return p.resourceTypes
+}
+func (p *SASQueryParameters) Protocol() SASProtocol {
+	return p.protocol
+}
+func (p *SASQueryParameters) StartTime() time.Time {
+	return p.startTime
+}
+func (p *SASQueryParameters) ExpiryTime() time.Time {
+	return p.expiryTime
+}
+
+func (p *SASQueryParameters) IPRange() IPRange {
+	return p.ipRange
+}
+
+func (p *SASQueryParameters) Identifier() string {
+	return p.identifier
+}
+
+func (p *SASQueryParameters) Resource() string {
+	return p.resource
+}
+func (p *SASQueryParameters) Permissions() string {
+	return p.permissions
+}
+
+func (p *SASQueryParameters) Signature() string {
+	return p.signature
+}
+
+// IPRange represents a SAS IP range's start IP and (optionally) end IP.
+type IPRange struct {
+	Start net.IP // Not specified if length = 0
+	End   net.IP // Not specified if length = 0
+}
+
+// String returns a string representation of an IPRange.
+func (ipr *IPRange) String() string {
+	if len(ipr.Start) == 0 {
+		return ""
+	}
+	start := ipr.Start.String()
+	if len(ipr.End) == 0 {
+		return start
+	}
+	return start + "-" + ipr.End.String()
+}
+
+// NewSASQueryParameters creates and initializes a SASQueryParameters object based on the
+// query parameter map's passed-in values. If deleteSASParametersFromValues is true,
+// all SAS-related query parameters are removed from the passed-in map. If
+// deleteSASParametersFromValues is false, the map passed-in map is unaltered.
+func newSASQueryParameters(values url.Values, deleteSASParametersFromValues bool) SASQueryParameters {
+	p := SASQueryParameters{}
+	for k, v := range values {
+		val := v[0]
+		isSASKey := true
+		switch strings.ToLower(k) {
+		case "sv":
+			p.version = val
+		case "ss":
+			p.services = val
+		case "srt":
+			p.resourceTypes = val
+		case "spr":
+			p.protocol = SASProtocol(val)
+		case "st":
+			p.startTime, _ = time.Parse(SASTimeFormat, val)
+		case "se":
+			p.expiryTime, _ = time.Parse(SASTimeFormat, val)
+		case "sip":
+			dashIndex := strings.Index(val, "-")
+			if dashIndex == -1 {
+				p.ipRange.Start = net.ParseIP(val)
+			} else {
+				p.ipRange.Start = net.ParseIP(val[:dashIndex])
+				p.ipRange.End = net.ParseIP(val[dashIndex+1:])
+			}
+		case "si":
+			p.identifier = val
+		case "sr":
+			p.resource = val
+		case "sp":
+			p.permissions = val
+		case "sig":
+			p.signature = val
+		default:
+			isSASKey = false // We didn't recognize the query parameter
+		}
+		if isSASKey && deleteSASParametersFromValues {
+			delete(values, k)
+		}
+	}
+	return p
+}
+
+// AddToValues adds the SAS components to the specified query parameters map.
+func (p *SASQueryParameters) addToValues(v url.Values) url.Values {
+	if p.version != "" {
+		v.Add("sv", p.version)
+	}
+	if p.services != "" {
+		v.Add("ss", p.services)
+	}
+	if p.resourceTypes != "" {
+		v.Add("srt", p.resourceTypes)
+	}
+	if p.protocol != "" {
+		v.Add("spr", string(p.protocol))
+	}
+	if !p.startTime.IsZero() {
+		v.Add("st", p.startTime.Format(SASTimeFormat))
+	}
+	if !p.expiryTime.IsZero() {
+		v.Add("se", p.expiryTime.Format(SASTimeFormat))
+	}
+	if len(p.ipRange.Start) > 0 {
+		v.Add("sip", p.ipRange.String())
+	}
+	if p.identifier != "" {
+		v.Add("si", p.identifier)
+	}
+	if p.resource != "" {
+		v.Add("sr", p.resource)
+	}
+	if p.permissions != "" {
+		v.Add("sp", p.permissions)
+	}
+	if p.signature != "" {
+		v.Add("sig", p.signature)
+	}
+	return v
+}
+
+// Encode encodes the SAS query parameters into URL encoded form sorted by key.
+func (p *SASQueryParameters) Encode() string {
+	v := url.Values{}
+	p.addToValues(v)
+	return v.Encode()
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zc_service_codes_common.go

@@ -0,0 +1,131 @@
+package azblob
+
+// https://docs.microsoft.com/en-us/rest/api/storageservices/common-rest-api-error-codes
+
+const (
+	// ServiceCodeNone is the default value. It indicates that the error was related to the service or that the service didn't return a code.
+	ServiceCodeNone ServiceCodeType = ""
+
+	// ServiceCodeAccountAlreadyExists means the specified account already exists.
+	ServiceCodeAccountAlreadyExists ServiceCodeType = "AccountAlreadyExists"
+
+	// ServiceCodeAccountBeingCreated means the specified account is in the process of being created (403).
+	ServiceCodeAccountBeingCreated ServiceCodeType = "AccountBeingCreated"
+
+	// ServiceCodeAccountIsDisabled means the specified account is disabled (403).
+	ServiceCodeAccountIsDisabled ServiceCodeType = "AccountIsDisabled"
+
+	// ServiceCodeAuthenticationFailed means the server failed to authenticate the request. Make sure the value of the Authorization header is formed correctly including the signature (403).
+	ServiceCodeAuthenticationFailed ServiceCodeType = "AuthenticationFailed"
+
+	// ServiceCodeConditionHeadersNotSupported means the condition headers are not supported (400).
+	ServiceCodeConditionHeadersNotSupported ServiceCodeType = "ConditionHeadersNotSupported"
+
+	// ServiceCodeConditionNotMet means the condition specified in the conditional header(s) was not met for a read/write operation (304/412).
+	ServiceCodeConditionNotMet ServiceCodeType = "ConditionNotMet"
+
+	// ServiceCodeEmptyMetadataKey means the key for one of the metadata key-value pairs is empty (400).
+	ServiceCodeEmptyMetadataKey ServiceCodeType = "EmptyMetadataKey"
+
+	// ServiceCodeInsufficientAccountPermissions means read operations are currently disabled or Write operations are not allowed or The account being accessed does not have sufficient permissions to execute this operation (403).
+	ServiceCodeInsufficientAccountPermissions ServiceCodeType = "InsufficientAccountPermissions"
+
+	// ServiceCodeInternalError means the server encountered an internal error. Please retry the request (500).
+	ServiceCodeInternalError ServiceCodeType = "InternalError"
+
+	// ServiceCodeInvalidAuthenticationInfo means the authentication information was not provided in the correct format. Verify the value of Authorization header (400).
+	ServiceCodeInvalidAuthenticationInfo ServiceCodeType = "InvalidAuthenticationInfo"
+
+	// ServiceCodeInvalidHeaderValue means the value provided for one of the HTTP headers was not in the correct format (400).
+	ServiceCodeInvalidHeaderValue ServiceCodeType = "InvalidHeaderValue"
+
+	// ServiceCodeInvalidHTTPVerb means the HTTP verb specified was not recognized by the server (400).
+	ServiceCodeInvalidHTTPVerb ServiceCodeType = "InvalidHttpVerb"
+
+	// ServiceCodeInvalidInput means one of the request inputs is not valid (400).
+	ServiceCodeInvalidInput ServiceCodeType = "InvalidInput"
+
+	// ServiceCodeInvalidMd5 means the MD5 value specified in the request is invalid. The MD5 value must be 128 bits and Base64-encoded (400).
+	ServiceCodeInvalidMd5 ServiceCodeType = "InvalidMd5"
+
+	// ServiceCodeInvalidMetadata means the specified metadata is invalid. It includes characters that are not permitted (400).
+	ServiceCodeInvalidMetadata ServiceCodeType = "InvalidMetadata"
+
+	// ServiceCodeInvalidQueryParameterValue means an invalid value was specified for one of the query parameters in the request URI (400).
+	ServiceCodeInvalidQueryParameterValue ServiceCodeType = "InvalidQueryParameterValue"
+
+	// ServiceCodeInvalidRange means the range specified is invalid for the current size of the resource (416).
+	ServiceCodeInvalidRange ServiceCodeType = "InvalidRange"
+
+	// ServiceCodeInvalidResourceName means the specified resource name contains invalid characters (400).
+	ServiceCodeInvalidResourceName ServiceCodeType = "InvalidResourceName"
+
+	// ServiceCodeInvalidURI means the requested URI does not represent any resource on the server (400).
+	ServiceCodeInvalidURI ServiceCodeType = "InvalidUri"
+
+	// ServiceCodeInvalidXMLDocument means the specified XML is not syntactically valid (400).
+	ServiceCodeInvalidXMLDocument ServiceCodeType = "InvalidXmlDocument"
+
+	// ServiceCodeInvalidXMLNodeValue means the value provided for one of the XML nodes in the request body was not in the correct format (400).
+	ServiceCodeInvalidXMLNodeValue ServiceCodeType = "InvalidXmlNodeValue"
+
+	// ServiceCodeMd5Mismatch means the MD5 value specified in the request did not match the MD5 value calculated by the server (400).
+	ServiceCodeMd5Mismatch ServiceCodeType = "Md5Mismatch"
+
+	// ServiceCodeMetadataTooLarge means the size of the specified metadata exceeds the maximum size permitted (400).
+	ServiceCodeMetadataTooLarge ServiceCodeType = "MetadataTooLarge"
+
+	// ServiceCodeMissingContentLengthHeader means the Content-Length header was not specified (411).
+	ServiceCodeMissingContentLengthHeader ServiceCodeType = "MissingContentLengthHeader"
+
+	// ServiceCodeMissingRequiredQueryParameter means a required query parameter was not specified for this request (400).
+	ServiceCodeMissingRequiredQueryParameter ServiceCodeType = "MissingRequiredQueryParameter"
+
+	// ServiceCodeMissingRequiredHeader means a required HTTP header was not specified (400).
+	ServiceCodeMissingRequiredHeader ServiceCodeType = "MissingRequiredHeader"
+
+	// ServiceCodeMissingRequiredXMLNode means a required XML node was not specified in the request body (400).
+	ServiceCodeMissingRequiredXMLNode ServiceCodeType = "MissingRequiredXmlNode"
+
+	// ServiceCodeMultipleConditionHeadersNotSupported means multiple condition headers are not supported (400).
+	ServiceCodeMultipleConditionHeadersNotSupported ServiceCodeType = "MultipleConditionHeadersNotSupported"
+
+	// ServiceCodeOperationTimedOut means the operation could not be completed within the permitted time (500).
+	ServiceCodeOperationTimedOut ServiceCodeType = "OperationTimedOut"
+
+	// ServiceCodeOutOfRangeInput means one of the request inputs is out of range (400).
+	ServiceCodeOutOfRangeInput ServiceCodeType = "OutOfRangeInput"
+
+	// ServiceCodeOutOfRangeQueryParameterValue means a query parameter specified in the request URI is outside the permissible range (400).
+	ServiceCodeOutOfRangeQueryParameterValue ServiceCodeType = "OutOfRangeQueryParameterValue"
+
+	// ServiceCodeRequestBodyTooLarge means the size of the request body exceeds the maximum size permitted (413).
+	ServiceCodeRequestBodyTooLarge ServiceCodeType = "RequestBodyTooLarge"
+
+	// ServiceCodeResourceTypeMismatch means the specified resource type does not match the type of the existing resource (409).
+	ServiceCodeResourceTypeMismatch ServiceCodeType = "ResourceTypeMismatch"
+
+	// ServiceCodeRequestURLFailedToParse means the url in the request could not be parsed (400).
+	ServiceCodeRequestURLFailedToParse ServiceCodeType = "RequestUrlFailedToParse"
+
+	// ServiceCodeResourceAlreadyExists means the specified resource already exists (409).
+	ServiceCodeResourceAlreadyExists ServiceCodeType = "ResourceAlreadyExists"
+
+	// ServiceCodeResourceNotFound means the specified resource does not exist (404).
+	ServiceCodeResourceNotFound ServiceCodeType = "ResourceNotFound"
+
+	// ServiceCodeServerBusy means the server is currently unable to receive requests. Please retry your request or Ingress/egress is over the account limit or operations per second is over the account limit (503).
+	ServiceCodeServerBusy ServiceCodeType = "ServerBusy"
+
+	// ServiceCodeUnsupportedHeader means one of the HTTP headers specified in the request is not supported (400).
+	ServiceCodeUnsupportedHeader ServiceCodeType = "UnsupportedHeader"
+
+	// ServiceCodeUnsupportedXMLNode means one of the XML nodes specified in the request body is not supported (400).
+	ServiceCodeUnsupportedXMLNode ServiceCodeType = "UnsupportedXmlNode"
+
+	// ServiceCodeUnsupportedQueryParameter means one of the query parameters specified in the request URI is not supported (400).
+	ServiceCodeUnsupportedQueryParameter ServiceCodeType = "UnsupportedQueryParameter"
+
+	// ServiceCodeUnsupportedHTTPVerb means the resource doesn't support the specified HTTP verb (405).
+	ServiceCodeUnsupportedHTTPVerb ServiceCodeType = "UnsupportedHttpVerb"
+)

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zc_storage_error.go

@@ -0,0 +1,110 @@
+package azblob
+
+import (
+	"bytes"
+	"encoding/xml"
+	"fmt"
+	"net/http"
+	"sort"
+
+	"github.com/Azure/azure-pipeline-go/pipeline"
+)
+
+func init() {
+	// wire up our custom error handling constructor
+	responseErrorFactory = newStorageError
+}
+
+// ServiceCodeType is a string identifying a storage service error.
+// For more information, see https://docs.microsoft.com/en-us/rest/api/storageservices/status-and-error-codes2
+type ServiceCodeType string
+
+// StorageError identifies a responder-generated network or response parsing error.
+type StorageError interface {
+	// ResponseError implements error's Error(), net.Error's Temporary() and Timeout() methods & Response().
+	ResponseError
+
+	// ServiceCode returns a service error code. Your code can use this to make error recovery decisions.
+	ServiceCode() ServiceCodeType
+}
+
+// storageError is the internal struct that implements the public StorageError interface.
+type storageError struct {
+	responseError
+	serviceCode ServiceCodeType
+	details     map[string]string
+}
+
+// newStorageError creates an error object that implements the error interface.
+func newStorageError(cause error, response *http.Response, description string) error {
+	return &storageError{
+		responseError: responseError{
+			ErrorNode:   pipeline.ErrorNode{}.Initialize(cause, 3),
+			response:    response,
+			description: description,
+		},
+	}
+}
+
+// ServiceCode returns service-error information. The caller may examine these values but should not modify any of them.
+func (e *storageError) ServiceCode() ServiceCodeType { return e.serviceCode }
+
+// Error implements the error interface's Error method to return a string representation of the error.
+func (e *storageError) Error() string {
+	b := &bytes.Buffer{}
+	fmt.Fprintf(b, "===== RESPONSE ERROR (ServiceCode=%s) =====\n", e.serviceCode)
+	fmt.Fprintf(b, "Description=%s, Details: ", e.description)
+	if len(e.details) == 0 {
+		b.WriteString("(none)\n")
+	} else {
+		b.WriteRune('\n')
+		keys := make([]string, 0, len(e.details))
+		// Alphabetize the details
+		for k := range e.details {
+			keys = append(keys, k)
+		}
+		sort.Strings(keys)
+		for _, k := range keys {
+			fmt.Fprintf(b, "   %s: %+v\n", k, e.details[k])
+		}
+	}
+	req := pipeline.Request{Request: e.response.Request}.Copy() // Make a copy of the response's request
+	pipeline.WriteRequestWithResponse(b, prepareRequestForLogging(req), e.response, nil)
+	return e.ErrorNode.Error(b.String())
+}
+
+// Temporary returns true if the error occurred due to a temporary condition (including an HTTP status of 500 or 503).
+func (e *storageError) Temporary() bool {
+	if e.response != nil {
+		if (e.response.StatusCode == http.StatusInternalServerError) || (e.response.StatusCode == http.StatusServiceUnavailable) {
+			return true
+		}
+	}
+	return e.ErrorNode.Temporary()
+}
+
+// UnmarshalXML performs custom unmarshalling of XML-formatted Azure storage request errors.
+func (e *storageError) UnmarshalXML(d *xml.Decoder, start xml.StartElement) (err error) {
+	tokName := ""
+	var t xml.Token
+	for t, err = d.Token(); err == nil; t, err = d.Token() {
+		switch tt := t.(type) {
+		case xml.StartElement:
+			tokName = tt.Name.Local
+			break
+		case xml.CharData:
+			switch tokName {
+			case "Code":
+				e.serviceCode = ServiceCodeType(tt)
+			case "Message":
+				e.description = string(tt)
+			default:
+				if e.details == nil {
+					e.details = map[string]string{}
+				}
+				e.details[tokName] = string(tt)
+			}
+		}
+	}
+	return nil
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zc_util_validate.go

@@ -0,0 +1,61 @@
+package azblob
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"strconv"
+)
+
+// httpRange defines a range of bytes within an HTTP resource, starting at offset and
+// ending at offset+count. A zero-value httpRange indicates the entire resource. An httpRange
+// which has an offset but na zero value count indicates from the offset to the resource's end.
+type httpRange struct {
+	offset int64
+	count  int64
+}
+
+func (r httpRange) pointers() *string {
+	if r.offset == 0 && r.count == 0 { // Do common case first for performance
+		return nil	// No specified range
+	}
+	if r.offset < 0 {
+		panic("The range offset must be >= 0")
+	}
+	if r.count < 0 {
+		panic("The range count must be >= 0")
+	}
+	endOffset := "" // if count == 0
+	if r.count > 0 {
+		endOffset = strconv.FormatInt((r.offset+r.count)-1, 10)
+	}
+	dataRange := fmt.Sprintf("bytes=%v-%s", r.offset, endOffset)
+	return &dataRange
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+func validateSeekableStreamAt0AndGetCount(body io.ReadSeeker) int64 {
+	if body == nil { // nil body's are "logically" seekable to 0 and are 0 bytes long
+		return 0
+	}
+	validateSeekableStreamAt0(body)
+	count, err := body.Seek(0, io.SeekEnd)
+	if err != nil {
+		panic("failed to seek stream")
+	}
+	body.Seek(0, io.SeekStart)
+	return count
+}
+
+func validateSeekableStreamAt0(body io.ReadSeeker) {
+	if body == nil { // nil body's are "logically" seekable to 0
+		return
+	}
+	if pos, err := body.Seek(0, io.SeekCurrent); pos != 0 || err != nil {
+		if err != nil {
+			panic(err)
+		}
+		panic(errors.New("stream must be set to position 0"))
+	}
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zc_uuid.go

@@ -0,0 +1,80 @@
+package azblob
+
+import (
+	"crypto/rand"
+	"fmt"
+	"strconv"
+)
+
+// The UUID reserved variants.
+const (
+	reservedNCS       byte = 0x80
+	reservedRFC4122   byte = 0x40
+	reservedMicrosoft byte = 0x20
+	reservedFuture    byte = 0x00
+)
+
+// A UUID representation compliant with specification in RFC 4122 document.
+type uuid [16]byte
+
+// NewUUID returns a new uuid using RFC 4122 algorithm.
+func newUUID() (u uuid) {
+	u = uuid{}
+	// Set all bits to randomly (or pseudo-randomly) chosen values.
+	_, err := rand.Read(u[:])
+	if err != nil {
+		panic("ran.Read failed")
+	}
+	u[8] = (u[8] | reservedRFC4122) & 0x7F // u.setVariant(ReservedRFC4122)
+
+	var version byte = 4
+	u[6] = (u[6] & 0xF) | (version << 4) // u.setVersion(4)
+	return
+}
+
+// String returns an unparsed version of the generated UUID sequence.
+func (u uuid) String() string {
+	return fmt.Sprintf("%x-%x-%x-%x-%x", u[0:4], u[4:6], u[6:8], u[8:10], u[10:])
+}
+
+// ParseUUID parses a string formatted as "003020100-0504-0706-0809-0a0b0c0d0e0f"
+// or "{03020100-0504-0706-0809-0a0b0c0d0e0f}" into a UUID.
+func parseUUID(uuidStr string) uuid {
+	char := func(hexString string) byte {
+		i, _ := strconv.ParseUint(hexString, 16, 8)
+		return byte(i)
+	}
+	if uuidStr[0] == '{' {
+		uuidStr = uuidStr[1:] // Skip over the '{'
+	}
+	// 03020100 - 05 04 - 07 06 - 08 09 - 0a 0b 0c 0d 0e 0f
+	//             1 11 1 11 11 1 12 22 2 22 22 22 33 33 33
+	// 01234567 8 90 12 3 45 67 8 90 12 3 45 67 89 01 23 45
+	uuidVal := uuid{
+		char(uuidStr[0:2]),
+		char(uuidStr[2:4]),
+		char(uuidStr[4:6]),
+		char(uuidStr[6:8]),
+
+		char(uuidStr[9:11]),
+		char(uuidStr[11:13]),
+
+		char(uuidStr[14:16]),
+		char(uuidStr[16:18]),
+
+		char(uuidStr[19:21]),
+		char(uuidStr[21:23]),
+
+		char(uuidStr[24:26]),
+		char(uuidStr[26:28]),
+		char(uuidStr[28:30]),
+		char(uuidStr[30:32]),
+		char(uuidStr[32:34]),
+		char(uuidStr[34:36]),
+	}
+	return uuidVal
+}
+
+func (u uuid) bytes() []byte {
+	return u[:]
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zt_doc.go

@@ -0,0 +1,89 @@
+// Copyright 2017 Microsoft Corporation. All rights reserved.
+// Use of this source code is governed by an MIT
+// license that can be found in the LICENSE file.
+
+/*
+Package azblob allows you to manipulate Azure Storage containers and blobs objects.
+
+URL Types
+
+The most common types you'll work with are the XxxURL types. The methods of these types make requests
+against the Azure Storage Service.
+
+ - ServiceURL's          methods perform operations on a storage account.
+    - ContainerURL's     methods perform operations on an account's container.
+       - BlockBlobURL's  methods perform operations on a container's block blob.
+       - AppendBlobURL's methods perform operations on a container's append blob.
+       - PageBlobURL's   methods perform operations on a container's page blob.
+       - BlobURL's       methods perform operations on a container's blob regardless of the blob's type.
+
+Internally, each XxxURL object contains a URL and a request pipeline. The URL indicates the endpoint where each HTTP
+request is sent and the pipeline indicates how the outgoing HTTP request and incoming HTTP response is processed.
+The pipeline specifies things like retry policies, logging, deserialization of HTTP response payloads, and more.
+
+Pipelines are threadsafe and may be shared by multiple XxxURL objects. When you create a ServiceURL, you pass
+an initial pipeline. When you call ServiceURL's NewContainerURL method, the new ContainerURL object has its own
+URL but it shares the same pipeline as the parent ServiceURL object.
+
+To work with a blob, call one of ContainerURL's 4 NewXxxBlobURL methods depending on how you want to treat the blob.
+To treat the blob as a block blob, append blob, or page blob, call NewBlockBlobURL, NewAppendBlobURL, or NewPageBlobURL
+respectively. These three types are all identical except for the methods they expose; each type exposes the methods
+relevant to the type of blob represented. If you're not sure how you want to treat a blob, you can call NewBlobURL;
+this returns an object whose methods are relevant to any kind of blob. When you call ContainerURL's NewXxxBlobURL,
+the new XxxBlobURL object has its own URL but it shares the same pipeline as the parent ContainerURL object. You
+can easily switch between blob types (method sets) by calling a ToXxxBlobURL method.
+
+If you'd like to use a different pipeline with a ServiceURL, ContainerURL, or XxxBlobURL object, then call the XxxURL
+object's WithPipeline method passing in the desired pipeline. The WithPipeline methods create a new XxxURL object
+with the same URL as the original but with the specified pipeline.
+
+Note that XxxURL objects use little memory, are goroutine-safe, and many objects share the same pipeline. This means that
+XxxURL objects share a lot of system resources making them very efficient.
+
+All of XxxURL's methods that make HTTP requests return rich error handling information so you can discern network failures,
+transient failures, timeout failures, service failures, etc. See the StorageError interface for more information and an
+example of how to do deal with errors.
+
+URL and Shared Access Signature Manipulation
+
+The library includes a BlobURLParts type for deconstructing and reconstructing URLs. And you can use the following types
+for generating and parsing Shared Access Signature (SAS)
+ - Use the AccountSASSignatureValues type to create a SAS for a storage account.
+ - Use the BlobSASSignatureValues type to create a SAS for a container or blob.
+ - Use the SASQueryParameters type to turn signature values in to query parameres or to parse query parameters.
+
+To generate a SAS, you must use the SharedKeyCredential type.
+
+Credentials
+
+When creating a request pipeline, you must specify one of this package's credential types.
+ - Call the NewAnonymousCredential function for requests that contain a Shared Access Signature (SAS).
+ - Call the NewSharedKeyCredential function (with an account name & key) to access any account resources. You must also use this
+   to generate Shared Access Signatures.
+
+HTTP Request Policy Factories
+
+This package defines several request policy factories for use with the pipeline package.
+Most applications will not use these factories directly; instead, the NewPipeline
+function creates these factories, initializes them (via the PipelineOptions type)
+and returns a pipeline object for use by the XxxURL objects.
+
+However, for advanced scenarios, developers can access these policy factories directly
+and even create their own and then construct their own pipeline in order to affect HTTP
+requests and responses performed by the XxxURL objects. For example, developers can
+introduce their own logging, random failures, request recording & playback for fast
+testing, HTTP request pacing, alternate retry mechanisms, metering, metrics, etc. The
+possibilities are endless!
+
+Below are the request pipeline policy factory functions that are provided with this
+package:
+ - NewRetryPolicyFactory           Enables rich retry semantics for failed HTTP requests.
+ - NewRequestLogPolicyFactory      Enables rich logging support for HTTP requests/responses & failures.
+ - NewTelemetryPolicyFactory       Enables simple modification of the HTTP request's User-Agent header so each request reports the SDK version & language/runtime making the requests.
+ - NewUniqueRequestIDPolicyFactory Adds a x-ms-client-request-id header with a unique UUID value to an HTTP request to help with diagnosing failures.
+
+Also, note that all the NewXxxCredential functions return request policy factory objects which get injected into the pipeline.
+*/
+package azblob
+
+// 	TokenCredential     Use this to access resources using Role-Based Access Control (RBAC).

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zz_generated_append_blob.go

@@ -0,0 +1,234 @@
+package azblob
+
+// Code generated by Microsoft (R) AutoRest Code Generator.
+// Changes may cause incorrect behavior and will be lost if the code is regenerated.
+
+import (
+	"context"
+	"encoding/base64"
+	"github.com/Azure/azure-pipeline-go/pipeline"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+	"strconv"
+	"time"
+)
+
+// appendBlobClient is the client for the AppendBlob methods of the Azblob service.
+type appendBlobClient struct {
+	managementClient
+}
+
+// newAppendBlobClient creates an instance of the appendBlobClient client.
+func newAppendBlobClient(url url.URL, p pipeline.Pipeline) appendBlobClient {
+	return appendBlobClient{newManagementClient(url, p)}
+}
+
+// AppendBlock the Append Block operation commits a new block of data to the end of an existing append blob. The Append
+// Block operation is permitted only if the blob was created with x-ms-blob-type set to AppendBlob. Append Block is
+// supported only on version 2015-02-21 version or later.
+//
+// body is initial data body will be closed upon successful return. Callers should ensure closure when receiving an
+// error.contentLength is the length of the request. timeout is the timeout parameter is expressed in seconds. For more
+// information, see <a
+// href="https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/setting-timeouts-for-blob-service-operations">Setting
+// Timeouts for Blob Service Operations.</a> leaseID is if specified, the operation only succeeds if the container's
+// lease is active and matches this ID. maxSize is optional conditional header. The max length in bytes permitted for
+// the append blob. If the Append Block operation would cause the blob to exceed that limit or if the blob size is
+// already greater than the value specified in this header, the request will fail with MaxBlobSizeConditionNotMet error
+// (HTTP status code 412 - Precondition Failed). appendPosition is optional conditional header, used only for the
+// Append Block operation. A number indicating the byte offset to compare. Append Block will succeed only if the append
+// position is equal to this number. If it is not, the request will fail with the AppendPositionConditionNotMet error
+// (HTTP status code 412 - Precondition Failed). ifModifiedSince is specify this header value to operate only on a blob
+// if it has been modified since the specified date/time. ifUnmodifiedSince is specify this header value to operate
+// only on a blob if it has not been modified since the specified date/time. ifMatches is specify an ETag value to
+// operate only on blobs with a matching value. ifNoneMatch is specify an ETag value to operate only on blobs without a
+// matching value. requestID is provides a client-generated, opaque value with a 1 KB character limit that is recorded
+// in the analytics logs when storage analytics logging is enabled.
+func (client appendBlobClient) AppendBlock(ctx context.Context, body io.ReadSeeker, contentLength int64, timeout *int32, leaseID *string, maxSize *int64, appendPosition *int64, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, requestID *string) (*AppendBlobAppendBlockResponse, error) {
+	if err := validate([]validation{
+		{targetValue: body,
+			constraints: []constraint{{target: "body", name: null, rule: true, chain: nil}}},
+		{targetValue: timeout,
+			constraints: []constraint{{target: "timeout", name: null, rule: false,
+				chain: []constraint{{target: "timeout", name: inclusiveMinimum, rule: 0, chain: nil}}}}}}); err != nil {
+		return nil, err
+	}
+	req, err := client.appendBlockPreparer(body, contentLength, timeout, leaseID, maxSize, appendPosition, ifModifiedSince, ifUnmodifiedSince, ifMatches, ifNoneMatch, requestID)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := client.Pipeline().Do(ctx, responderPolicyFactory{responder: client.appendBlockResponder}, req)
+	if err != nil {
+		return nil, err
+	}
+	return resp.(*AppendBlobAppendBlockResponse), err
+}
+
+// appendBlockPreparer prepares the AppendBlock request.
+func (client appendBlobClient) appendBlockPreparer(body io.ReadSeeker, contentLength int64, timeout *int32, leaseID *string, maxSize *int64, appendPosition *int64, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, requestID *string) (pipeline.Request, error) {
+	req, err := pipeline.NewRequest("PUT", client.url, body)
+	if err != nil {
+		return req, pipeline.NewError(err, "failed to create request")
+	}
+	params := req.URL.Query()
+	if timeout != nil {
+		params.Set("timeout", strconv.FormatInt(int64(*timeout), 10))
+	}
+	params.Set("comp", "appendblock")
+	req.URL.RawQuery = params.Encode()
+	req.Header.Set("Content-Length", strconv.FormatInt(contentLength, 10))
+	if leaseID != nil {
+		req.Header.Set("x-ms-lease-id", *leaseID)
+	}
+	if maxSize != nil {
+		req.Header.Set("x-ms-blob-condition-maxsize", strconv.FormatInt(*maxSize, 10))
+	}
+	if appendPosition != nil {
+		req.Header.Set("x-ms-blob-condition-appendpos", strconv.FormatInt(*appendPosition, 10))
+	}
+	if ifModifiedSince != nil {
+		req.Header.Set("If-Modified-Since", (*ifModifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifUnmodifiedSince != nil {
+		req.Header.Set("If-Unmodified-Since", (*ifUnmodifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifMatches != nil {
+		req.Header.Set("If-Match", string(*ifMatches))
+	}
+	if ifNoneMatch != nil {
+		req.Header.Set("If-None-Match", string(*ifNoneMatch))
+	}
+	req.Header.Set("x-ms-version", ServiceVersion)
+	if requestID != nil {
+		req.Header.Set("x-ms-client-request-id", *requestID)
+	}
+	return req, nil
+}
+
+// appendBlockResponder handles the response to the AppendBlock request.
+func (client appendBlobClient) appendBlockResponder(resp pipeline.Response) (pipeline.Response, error) {
+	err := validateResponse(resp, http.StatusOK, http.StatusCreated)
+	if resp == nil {
+		return nil, err
+	}
+	io.Copy(ioutil.Discard, resp.Response().Body)
+	resp.Response().Body.Close()
+	return &AppendBlobAppendBlockResponse{rawResponse: resp.Response()}, err
+}
+
+// Create the Create Append Blob operation creates a new append blob.
+//
+// contentLength is the length of the request. timeout is the timeout parameter is expressed in seconds. For more
+// information, see <a
+// href="https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/setting-timeouts-for-blob-service-operations">Setting
+// Timeouts for Blob Service Operations.</a> blobContentType is optional. Sets the blob's content type. If specified,
+// this property is stored with the blob and returned with a read request. blobContentEncoding is optional. Sets the
+// blob's content encoding. If specified, this property is stored with the blob and returned with a read request.
+// blobContentLanguage is optional. Set the blob's content language. If specified, this property is stored with the
+// blob and returned with a read request. blobContentMD5 is optional. An MD5 hash of the blob content. Note that this
+// hash is not validated, as the hashes for the individual blocks were validated when each was uploaded.
+// blobCacheControl is optional. Sets the blob's cache control. If specified, this property is stored with the blob and
+// returned with a read request. metadata is optional. Specifies a user-defined name-value pair associated with the
+// blob. If no name-value pairs are specified, the operation will copy the metadata from the source blob or file to the
+// destination blob. If one or more name-value pairs are specified, the destination blob is created with the specified
+// metadata, and metadata is not copied from the source blob or file. Note that beginning with version 2009-09-19,
+// metadata names must adhere to the naming rules for C# identifiers. See Naming and Referencing Containers, Blobs, and
+// Metadata for more information. leaseID is if specified, the operation only succeeds if the container's lease is
+// active and matches this ID. blobContentDisposition is optional. Sets the blob's Content-Disposition header.
+// ifModifiedSince is specify this header value to operate only on a blob if it has been modified since the specified
+// date/time. ifUnmodifiedSince is specify this header value to operate only on a blob if it has not been modified
+// since the specified date/time. ifMatches is specify an ETag value to operate only on blobs with a matching value.
+// ifNoneMatch is specify an ETag value to operate only on blobs without a matching value. requestID is provides a
+// client-generated, opaque value with a 1 KB character limit that is recorded in the analytics logs when storage
+// analytics logging is enabled.
+func (client appendBlobClient) Create(ctx context.Context, contentLength int64, timeout *int32, blobContentType *string, blobContentEncoding *string, blobContentLanguage *string, blobContentMD5 []byte, blobCacheControl *string, metadata map[string]string, leaseID *string, blobContentDisposition *string, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, requestID *string) (*AppendBlobCreateResponse, error) {
+	if err := validate([]validation{
+		{targetValue: timeout,
+			constraints: []constraint{{target: "timeout", name: null, rule: false,
+				chain: []constraint{{target: "timeout", name: inclusiveMinimum, rule: 0, chain: nil}}}}},
+		{targetValue: metadata,
+			constraints: []constraint{{target: "metadata", name: null, rule: false,
+				chain: []constraint{{target: "metadata", name: pattern, rule: `^[a-zA-Z]+$`, chain: nil}}}}}}); err != nil {
+		return nil, err
+	}
+	req, err := client.createPreparer(contentLength, timeout, blobContentType, blobContentEncoding, blobContentLanguage, blobContentMD5, blobCacheControl, metadata, leaseID, blobContentDisposition, ifModifiedSince, ifUnmodifiedSince, ifMatches, ifNoneMatch, requestID)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := client.Pipeline().Do(ctx, responderPolicyFactory{responder: client.createResponder}, req)
+	if err != nil {
+		return nil, err
+	}
+	return resp.(*AppendBlobCreateResponse), err
+}
+
+// createPreparer prepares the Create request.
+func (client appendBlobClient) createPreparer(contentLength int64, timeout *int32, blobContentType *string, blobContentEncoding *string, blobContentLanguage *string, blobContentMD5 []byte, blobCacheControl *string, metadata map[string]string, leaseID *string, blobContentDisposition *string, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, requestID *string) (pipeline.Request, error) {
+	req, err := pipeline.NewRequest("PUT", client.url, nil)
+	if err != nil {
+		return req, pipeline.NewError(err, "failed to create request")
+	}
+	params := req.URL.Query()
+	if timeout != nil {
+		params.Set("timeout", strconv.FormatInt(int64(*timeout), 10))
+	}
+	req.URL.RawQuery = params.Encode()
+	req.Header.Set("Content-Length", strconv.FormatInt(contentLength, 10))
+	if blobContentType != nil {
+		req.Header.Set("x-ms-blob-content-type", *blobContentType)
+	}
+	if blobContentEncoding != nil {
+		req.Header.Set("x-ms-blob-content-encoding", *blobContentEncoding)
+	}
+	if blobContentLanguage != nil {
+		req.Header.Set("x-ms-blob-content-language", *blobContentLanguage)
+	}
+	if blobContentMD5 != nil {
+		req.Header.Set("x-ms-blob-content-md5", base64.StdEncoding.EncodeToString(blobContentMD5))
+	}
+	if blobCacheControl != nil {
+		req.Header.Set("x-ms-blob-cache-control", *blobCacheControl)
+	}
+	if metadata != nil {
+		for k, v := range metadata {
+			req.Header.Set("x-ms-meta-"+k, v)
+		}
+	}
+	if leaseID != nil {
+		req.Header.Set("x-ms-lease-id", *leaseID)
+	}
+	if blobContentDisposition != nil {
+		req.Header.Set("x-ms-blob-content-disposition", *blobContentDisposition)
+	}
+	if ifModifiedSince != nil {
+		req.Header.Set("If-Modified-Since", (*ifModifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifUnmodifiedSince != nil {
+		req.Header.Set("If-Unmodified-Since", (*ifUnmodifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifMatches != nil {
+		req.Header.Set("If-Match", string(*ifMatches))
+	}
+	if ifNoneMatch != nil {
+		req.Header.Set("If-None-Match", string(*ifNoneMatch))
+	}
+	req.Header.Set("x-ms-version", ServiceVersion)
+	if requestID != nil {
+		req.Header.Set("x-ms-client-request-id", *requestID)
+	}
+	req.Header.Set("x-ms-blob-type", "AppendBlob")
+	return req, nil
+}
+
+// createResponder handles the response to the Create request.
+func (client appendBlobClient) createResponder(resp pipeline.Response) (pipeline.Response, error) {
+	err := validateResponse(resp, http.StatusOK, http.StatusCreated)
+	if resp == nil {
+		return nil, err
+	}
+	io.Copy(ioutil.Discard, resp.Response().Body)
+	resp.Response().Body.Close()
+	return &AppendBlobCreateResponse{rawResponse: resp.Response()}, err
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zz_generated_block_blob.go

@@ -0,0 +1,498 @@
+package azblob
+
+// Code generated by Microsoft (R) AutoRest Code Generator.
+// Changes may cause incorrect behavior and will be lost if the code is regenerated.
+
+import (
+	"bytes"
+	"context"
+	"encoding/base64"
+	"encoding/xml"
+	"github.com/Azure/azure-pipeline-go/pipeline"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+	"strconv"
+	"time"
+)
+
+// blockBlobClient is the client for the BlockBlob methods of the Azblob service.
+type blockBlobClient struct {
+	managementClient
+}
+
+// newBlockBlobClient creates an instance of the blockBlobClient client.
+func newBlockBlobClient(url url.URL, p pipeline.Pipeline) blockBlobClient {
+	return blockBlobClient{newManagementClient(url, p)}
+}
+
+// CommitBlockList the Commit Block List operation writes a blob by specifying the list of block IDs that make up the
+// blob. In order to be written as part of a blob, a block must have been successfully written to the server in a prior
+// Put Block operation. You can call Put Block List to update a blob by uploading only those blocks that have changed,
+// then committing the new and existing blocks together. You can do this by specifying whether to commit a block from
+// the committed block list or from the uncommitted block list, or to commit the most recently uploaded version of the
+// block, whichever list it may belong to.
+//
+// timeout is the timeout parameter is expressed in seconds. For more information, see <a
+// href="https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/setting-timeouts-for-blob-service-operations">Setting
+// Timeouts for Blob Service Operations.</a> blobCacheControl is optional. Sets the blob's cache control. If specified,
+// this property is stored with the blob and returned with a read request. blobContentType is optional. Sets the blob's
+// content type. If specified, this property is stored with the blob and returned with a read request.
+// blobContentEncoding is optional. Sets the blob's content encoding. If specified, this property is stored with the
+// blob and returned with a read request. blobContentLanguage is optional. Set the blob's content language. If
+// specified, this property is stored with the blob and returned with a read request. blobContentMD5 is optional. An
+// MD5 hash of the blob content. Note that this hash is not validated, as the hashes for the individual blocks were
+// validated when each was uploaded. metadata is optional. Specifies a user-defined name-value pair associated with the
+// blob. If no name-value pairs are specified, the operation will copy the metadata from the source blob or file to the
+// destination blob. If one or more name-value pairs are specified, the destination blob is created with the specified
+// metadata, and metadata is not copied from the source blob or file. Note that beginning with version 2009-09-19,
+// metadata names must adhere to the naming rules for C# identifiers. See Naming and Referencing Containers, Blobs, and
+// Metadata for more information. leaseID is if specified, the operation only succeeds if the container's lease is
+// active and matches this ID. blobContentDisposition is optional. Sets the blob's Content-Disposition header.
+// ifModifiedSince is specify this header value to operate only on a blob if it has been modified since the specified
+// date/time. ifUnmodifiedSince is specify this header value to operate only on a blob if it has not been modified
+// since the specified date/time. ifMatches is specify an ETag value to operate only on blobs with a matching value.
+// ifNoneMatch is specify an ETag value to operate only on blobs without a matching value. requestID is provides a
+// client-generated, opaque value with a 1 KB character limit that is recorded in the analytics logs when storage
+// analytics logging is enabled.
+func (client blockBlobClient) CommitBlockList(ctx context.Context, blocks BlockLookupList, timeout *int32, blobCacheControl *string, blobContentType *string, blobContentEncoding *string, blobContentLanguage *string, blobContentMD5 []byte, metadata map[string]string, leaseID *string, blobContentDisposition *string, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, requestID *string) (*BlockBlobCommitBlockListResponse, error) {
+	if err := validate([]validation{
+		{targetValue: timeout,
+			constraints: []constraint{{target: "timeout", name: null, rule: false,
+				chain: []constraint{{target: "timeout", name: inclusiveMinimum, rule: 0, chain: nil}}}}},
+		{targetValue: metadata,
+			constraints: []constraint{{target: "metadata", name: null, rule: false,
+				chain: []constraint{{target: "metadata", name: pattern, rule: `^[a-zA-Z]+$`, chain: nil}}}}}}); err != nil {
+		return nil, err
+	}
+	req, err := client.commitBlockListPreparer(blocks, timeout, blobCacheControl, blobContentType, blobContentEncoding, blobContentLanguage, blobContentMD5, metadata, leaseID, blobContentDisposition, ifModifiedSince, ifUnmodifiedSince, ifMatches, ifNoneMatch, requestID)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := client.Pipeline().Do(ctx, responderPolicyFactory{responder: client.commitBlockListResponder}, req)
+	if err != nil {
+		return nil, err
+	}
+	return resp.(*BlockBlobCommitBlockListResponse), err
+}
+
+// commitBlockListPreparer prepares the CommitBlockList request.
+func (client blockBlobClient) commitBlockListPreparer(blocks BlockLookupList, timeout *int32, blobCacheControl *string, blobContentType *string, blobContentEncoding *string, blobContentLanguage *string, blobContentMD5 []byte, metadata map[string]string, leaseID *string, blobContentDisposition *string, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, requestID *string) (pipeline.Request, error) {
+	req, err := pipeline.NewRequest("PUT", client.url, nil)
+	if err != nil {
+		return req, pipeline.NewError(err, "failed to create request")
+	}
+	params := req.URL.Query()
+	if timeout != nil {
+		params.Set("timeout", strconv.FormatInt(int64(*timeout), 10))
+	}
+	params.Set("comp", "blocklist")
+	req.URL.RawQuery = params.Encode()
+	if blobCacheControl != nil {
+		req.Header.Set("x-ms-blob-cache-control", *blobCacheControl)
+	}
+	if blobContentType != nil {
+		req.Header.Set("x-ms-blob-content-type", *blobContentType)
+	}
+	if blobContentEncoding != nil {
+		req.Header.Set("x-ms-blob-content-encoding", *blobContentEncoding)
+	}
+	if blobContentLanguage != nil {
+		req.Header.Set("x-ms-blob-content-language", *blobContentLanguage)
+	}
+	if blobContentMD5 != nil {
+		req.Header.Set("x-ms-blob-content-md5", base64.StdEncoding.EncodeToString(blobContentMD5))
+	}
+	if metadata != nil {
+		for k, v := range metadata {
+			req.Header.Set("x-ms-meta-"+k, v)
+		}
+	}
+	if leaseID != nil {
+		req.Header.Set("x-ms-lease-id", *leaseID)
+	}
+	if blobContentDisposition != nil {
+		req.Header.Set("x-ms-blob-content-disposition", *blobContentDisposition)
+	}
+	if ifModifiedSince != nil {
+		req.Header.Set("If-Modified-Since", (*ifModifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifUnmodifiedSince != nil {
+		req.Header.Set("If-Unmodified-Since", (*ifUnmodifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifMatches != nil {
+		req.Header.Set("If-Match", string(*ifMatches))
+	}
+	if ifNoneMatch != nil {
+		req.Header.Set("If-None-Match", string(*ifNoneMatch))
+	}
+	req.Header.Set("x-ms-version", ServiceVersion)
+	if requestID != nil {
+		req.Header.Set("x-ms-client-request-id", *requestID)
+	}
+	b, err := xml.Marshal(blocks)
+	if err != nil {
+		return req, pipeline.NewError(err, "failed to marshal request body")
+	}
+	req.Header.Set("Content-Type", "application/xml")
+	err = req.SetBody(bytes.NewReader(b))
+	if err != nil {
+		return req, pipeline.NewError(err, "failed to set request body")
+	}
+	return req, nil
+}
+
+// commitBlockListResponder handles the response to the CommitBlockList request.
+func (client blockBlobClient) commitBlockListResponder(resp pipeline.Response) (pipeline.Response, error) {
+	err := validateResponse(resp, http.StatusOK, http.StatusCreated)
+	if resp == nil {
+		return nil, err
+	}
+	io.Copy(ioutil.Discard, resp.Response().Body)
+	resp.Response().Body.Close()
+	return &BlockBlobCommitBlockListResponse{rawResponse: resp.Response()}, err
+}
+
+// GetBlockList the Get Block List operation retrieves the list of blocks that have been uploaded as part of a block
+// blob
+//
+// listType is specifies whether to return the list of committed blocks, the list of uncommitted blocks, or both lists
+// together. snapshot is the snapshot parameter is an opaque DateTime value that, when present, specifies the blob
+// snapshot to retrieve. For more information on working with blob snapshots, see <a
+// href="https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/creating-a-snapshot-of-a-blob">Creating
+// a Snapshot of a Blob.</a> timeout is the timeout parameter is expressed in seconds. For more information, see <a
+// href="https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/setting-timeouts-for-blob-service-operations">Setting
+// Timeouts for Blob Service Operations.</a> leaseID is if specified, the operation only succeeds if the container's
+// lease is active and matches this ID. requestID is provides a client-generated, opaque value with a 1 KB character
+// limit that is recorded in the analytics logs when storage analytics logging is enabled.
+func (client blockBlobClient) GetBlockList(ctx context.Context, listType BlockListType, snapshot *string, timeout *int32, leaseID *string, requestID *string) (*BlockList, error) {
+	if err := validate([]validation{
+		{targetValue: timeout,
+			constraints: []constraint{{target: "timeout", name: null, rule: false,
+				chain: []constraint{{target: "timeout", name: inclusiveMinimum, rule: 0, chain: nil}}}}}}); err != nil {
+		return nil, err
+	}
+	req, err := client.getBlockListPreparer(listType, snapshot, timeout, leaseID, requestID)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := client.Pipeline().Do(ctx, responderPolicyFactory{responder: client.getBlockListResponder}, req)
+	if err != nil {
+		return nil, err
+	}
+	return resp.(*BlockList), err
+}
+
+// getBlockListPreparer prepares the GetBlockList request.
+func (client blockBlobClient) getBlockListPreparer(listType BlockListType, snapshot *string, timeout *int32, leaseID *string, requestID *string) (pipeline.Request, error) {
+	req, err := pipeline.NewRequest("GET", client.url, nil)
+	if err != nil {
+		return req, pipeline.NewError(err, "failed to create request")
+	}
+	params := req.URL.Query()
+	if snapshot != nil && len(*snapshot) > 0 {
+		params.Set("snapshot", *snapshot)
+	}
+	params.Set("blocklisttype", string(listType))
+	if timeout != nil {
+		params.Set("timeout", strconv.FormatInt(int64(*timeout), 10))
+	}
+	params.Set("comp", "blocklist")
+	req.URL.RawQuery = params.Encode()
+	if leaseID != nil {
+		req.Header.Set("x-ms-lease-id", *leaseID)
+	}
+	req.Header.Set("x-ms-version", ServiceVersion)
+	if requestID != nil {
+		req.Header.Set("x-ms-client-request-id", *requestID)
+	}
+	return req, nil
+}
+
+// getBlockListResponder handles the response to the GetBlockList request.
+func (client blockBlobClient) getBlockListResponder(resp pipeline.Response) (pipeline.Response, error) {
+	err := validateResponse(resp, http.StatusOK)
+	if resp == nil {
+		return nil, err
+	}
+	result := &BlockList{rawResponse: resp.Response()}
+	if err != nil {
+		return result, err
+	}
+	defer resp.Response().Body.Close()
+	b, err := ioutil.ReadAll(resp.Response().Body)
+	if err != nil {
+		return result, NewResponseError(err, resp.Response(), "failed to read response body")
+	}
+	if len(b) > 0 {
+		b = removeBOM(b)
+		err = xml.Unmarshal(b, result)
+		if err != nil {
+			return result, NewResponseError(err, resp.Response(), "failed to unmarshal response body")
+		}
+	}
+	return result, nil
+}
+
+// StageBlock the Stage Block operation creates a new block to be committed as part of a blob
+//
+// blockID is a valid Base64 string value that identifies the block. Prior to encoding, the string must be less than or
+// equal to 64 bytes in size. For a given blob, the length of the value specified for the blockid parameter must be the
+// same size for each block. contentLength is the length of the request. body is initial data body will be closed upon
+// successful return. Callers should ensure closure when receiving an error.timeout is the timeout parameter is
+// expressed in seconds. For more information, see <a
+// href="https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/setting-timeouts-for-blob-service-operations">Setting
+// Timeouts for Blob Service Operations.</a> leaseID is if specified, the operation only succeeds if the container's
+// lease is active and matches this ID. requestID is provides a client-generated, opaque value with a 1 KB character
+// limit that is recorded in the analytics logs when storage analytics logging is enabled.
+func (client blockBlobClient) StageBlock(ctx context.Context, blockID string, contentLength int64, body io.ReadSeeker, timeout *int32, leaseID *string, requestID *string) (*BlockBlobStageBlockResponse, error) {
+	if err := validate([]validation{
+		{targetValue: body,
+			constraints: []constraint{{target: "body", name: null, rule: true, chain: nil}}},
+		{targetValue: timeout,
+			constraints: []constraint{{target: "timeout", name: null, rule: false,
+				chain: []constraint{{target: "timeout", name: inclusiveMinimum, rule: 0, chain: nil}}}}}}); err != nil {
+		return nil, err
+	}
+	req, err := client.stageBlockPreparer(blockID, contentLength, body, timeout, leaseID, requestID)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := client.Pipeline().Do(ctx, responderPolicyFactory{responder: client.stageBlockResponder}, req)
+	if err != nil {
+		return nil, err
+	}
+	return resp.(*BlockBlobStageBlockResponse), err
+}
+
+// stageBlockPreparer prepares the StageBlock request.
+func (client blockBlobClient) stageBlockPreparer(blockID string, contentLength int64, body io.ReadSeeker, timeout *int32, leaseID *string, requestID *string) (pipeline.Request, error) {
+	req, err := pipeline.NewRequest("PUT", client.url, body)
+	if err != nil {
+		return req, pipeline.NewError(err, "failed to create request")
+	}
+	params := req.URL.Query()
+	params.Set("blockid", blockID)
+	if timeout != nil {
+		params.Set("timeout", strconv.FormatInt(int64(*timeout), 10))
+	}
+	params.Set("comp", "block")
+	req.URL.RawQuery = params.Encode()
+	req.Header.Set("Content-Length", strconv.FormatInt(contentLength, 10))
+	if leaseID != nil {
+		req.Header.Set("x-ms-lease-id", *leaseID)
+	}
+	req.Header.Set("x-ms-version", ServiceVersion)
+	if requestID != nil {
+		req.Header.Set("x-ms-client-request-id", *requestID)
+	}
+	return req, nil
+}
+
+// stageBlockResponder handles the response to the StageBlock request.
+func (client blockBlobClient) stageBlockResponder(resp pipeline.Response) (pipeline.Response, error) {
+	err := validateResponse(resp, http.StatusOK, http.StatusCreated)
+	if resp == nil {
+		return nil, err
+	}
+	io.Copy(ioutil.Discard, resp.Response().Body)
+	resp.Response().Body.Close()
+	return &BlockBlobStageBlockResponse{rawResponse: resp.Response()}, err
+}
+
+// StageBlockFromURL the Stage Block operation creates a new block to be committed as part of a blob where the contents
+// are read from a URL.
+//
+// blockID is a valid Base64 string value that identifies the block. Prior to encoding, the string must be less than or
+// equal to 64 bytes in size. For a given blob, the length of the value specified for the blockid parameter must be the
+// same size for each block. contentLength is the length of the request. sourceURL is specifiy an URL to the copy
+// source. sourceRange is bytes of source data in the specified range. sourceContentMD5 is specify the md5 calculated
+// for the range of bytes that must be read from the copy source. timeout is the timeout parameter is expressed in
+// seconds. For more information, see <a
+// href="https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/setting-timeouts-for-blob-service-operations">Setting
+// Timeouts for Blob Service Operations.</a> leaseID is if specified, the operation only succeeds if the container's
+// lease is active and matches this ID. requestID is provides a client-generated, opaque value with a 1 KB character
+// limit that is recorded in the analytics logs when storage analytics logging is enabled.
+func (client blockBlobClient) StageBlockFromURL(ctx context.Context, blockID string, contentLength int64, sourceURL *string, sourceRange *string, sourceContentMD5 []byte, timeout *int32, leaseID *string, requestID *string) (*BlockBlobStageBlockFromURLResponse, error) {
+	if err := validate([]validation{
+		{targetValue: timeout,
+			constraints: []constraint{{target: "timeout", name: null, rule: false,
+				chain: []constraint{{target: "timeout", name: inclusiveMinimum, rule: 0, chain: nil}}}}}}); err != nil {
+		return nil, err
+	}
+	req, err := client.stageBlockFromURLPreparer(blockID, contentLength, sourceURL, sourceRange, sourceContentMD5, timeout, leaseID, requestID)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := client.Pipeline().Do(ctx, responderPolicyFactory{responder: client.stageBlockFromURLResponder}, req)
+	if err != nil {
+		return nil, err
+	}
+	return resp.(*BlockBlobStageBlockFromURLResponse), err
+}
+
+// stageBlockFromURLPreparer prepares the StageBlockFromURL request.
+func (client blockBlobClient) stageBlockFromURLPreparer(blockID string, contentLength int64, sourceURL *string, sourceRange *string, sourceContentMD5 []byte, timeout *int32, leaseID *string, requestID *string) (pipeline.Request, error) {
+	req, err := pipeline.NewRequest("PUT", client.url, nil)
+	if err != nil {
+		return req, pipeline.NewError(err, "failed to create request")
+	}
+	params := req.URL.Query()
+	params.Set("blockid", blockID)
+	if timeout != nil {
+		params.Set("timeout", strconv.FormatInt(int64(*timeout), 10))
+	}
+	params.Set("comp", "block")
+	req.URL.RawQuery = params.Encode()
+	req.Header.Set("Content-Length", strconv.FormatInt(contentLength, 10))
+	if sourceURL != nil {
+		req.Header.Set("x-ms-copy-source", *sourceURL)
+	}
+	if sourceRange != nil {
+		req.Header.Set("x-ms-source-range", *sourceRange)
+	}
+	if sourceContentMD5 != nil {
+		req.Header.Set("x-ms-source-content-md5", base64.StdEncoding.EncodeToString(sourceContentMD5))
+	}
+	if leaseID != nil {
+		req.Header.Set("x-ms-lease-id", *leaseID)
+	}
+	req.Header.Set("x-ms-version", ServiceVersion)
+	if requestID != nil {
+		req.Header.Set("x-ms-client-request-id", *requestID)
+	}
+	return req, nil
+}
+
+// stageBlockFromURLResponder handles the response to the StageBlockFromURL request.
+func (client blockBlobClient) stageBlockFromURLResponder(resp pipeline.Response) (pipeline.Response, error) {
+	err := validateResponse(resp, http.StatusOK, http.StatusCreated)
+	if resp == nil {
+		return nil, err
+	}
+	io.Copy(ioutil.Discard, resp.Response().Body)
+	resp.Response().Body.Close()
+	return &BlockBlobStageBlockFromURLResponse{rawResponse: resp.Response()}, err
+}
+
+// Upload the Upload Block Blob operation updates the content of an existing block blob. Updating an existing block
+// blob overwrites any existing metadata on the blob. Partial updates are not supported with Put Blob; the content of
+// the existing blob is overwritten with the content of the new blob. To perform a partial update of the content of a
+// block blob, use the Put Block List operation.
+//
+// body is initial data body will be closed upon successful return. Callers should ensure closure when receiving an
+// error.contentLength is the length of the request. timeout is the timeout parameter is expressed in seconds. For more
+// information, see <a
+// href="https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/setting-timeouts-for-blob-service-operations">Setting
+// Timeouts for Blob Service Operations.</a> blobContentType is optional. Sets the blob's content type. If specified,
+// this property is stored with the blob and returned with a read request. blobContentEncoding is optional. Sets the
+// blob's content encoding. If specified, this property is stored with the blob and returned with a read request.
+// blobContentLanguage is optional. Set the blob's content language. If specified, this property is stored with the
+// blob and returned with a read request. blobContentMD5 is optional. An MD5 hash of the blob content. Note that this
+// hash is not validated, as the hashes for the individual blocks were validated when each was uploaded.
+// blobCacheControl is optional. Sets the blob's cache control. If specified, this property is stored with the blob and
+// returned with a read request. metadata is optional. Specifies a user-defined name-value pair associated with the
+// blob. If no name-value pairs are specified, the operation will copy the metadata from the source blob or file to the
+// destination blob. If one or more name-value pairs are specified, the destination blob is created with the specified
+// metadata, and metadata is not copied from the source blob or file. Note that beginning with version 2009-09-19,
+// metadata names must adhere to the naming rules for C# identifiers. See Naming and Referencing Containers, Blobs, and
+// Metadata for more information. leaseID is if specified, the operation only succeeds if the container's lease is
+// active and matches this ID. blobContentDisposition is optional. Sets the blob's Content-Disposition header.
+// ifModifiedSince is specify this header value to operate only on a blob if it has been modified since the specified
+// date/time. ifUnmodifiedSince is specify this header value to operate only on a blob if it has not been modified
+// since the specified date/time. ifMatches is specify an ETag value to operate only on blobs with a matching value.
+// ifNoneMatch is specify an ETag value to operate only on blobs without a matching value. requestID is provides a
+// client-generated, opaque value with a 1 KB character limit that is recorded in the analytics logs when storage
+// analytics logging is enabled.
+func (client blockBlobClient) Upload(ctx context.Context, body io.ReadSeeker, contentLength int64, timeout *int32, blobContentType *string, blobContentEncoding *string, blobContentLanguage *string, blobContentMD5 []byte, blobCacheControl *string, metadata map[string]string, leaseID *string, blobContentDisposition *string, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, requestID *string) (*BlockBlobUploadResponse, error) {
+	if err := validate([]validation{
+		{targetValue: body,
+			constraints: []constraint{{target: "body", name: null, rule: true, chain: nil}}},
+		{targetValue: timeout,
+			constraints: []constraint{{target: "timeout", name: null, rule: false,
+				chain: []constraint{{target: "timeout", name: inclusiveMinimum, rule: 0, chain: nil}}}}},
+		{targetValue: metadata,
+			constraints: []constraint{{target: "metadata", name: null, rule: false,
+				chain: []constraint{{target: "metadata", name: pattern, rule: `^[a-zA-Z]+$`, chain: nil}}}}}}); err != nil {
+		return nil, err
+	}
+	req, err := client.uploadPreparer(body, contentLength, timeout, blobContentType, blobContentEncoding, blobContentLanguage, blobContentMD5, blobCacheControl, metadata, leaseID, blobContentDisposition, ifModifiedSince, ifUnmodifiedSince, ifMatches, ifNoneMatch, requestID)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := client.Pipeline().Do(ctx, responderPolicyFactory{responder: client.uploadResponder}, req)
+	if err != nil {
+		return nil, err
+	}
+	return resp.(*BlockBlobUploadResponse), err
+}
+
+// uploadPreparer prepares the Upload request.
+func (client blockBlobClient) uploadPreparer(body io.ReadSeeker, contentLength int64, timeout *int32, blobContentType *string, blobContentEncoding *string, blobContentLanguage *string, blobContentMD5 []byte, blobCacheControl *string, metadata map[string]string, leaseID *string, blobContentDisposition *string, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, requestID *string) (pipeline.Request, error) {
+	req, err := pipeline.NewRequest("PUT", client.url, body)
+	if err != nil {
+		return req, pipeline.NewError(err, "failed to create request")
+	}
+	params := req.URL.Query()
+	if timeout != nil {
+		params.Set("timeout", strconv.FormatInt(int64(*timeout), 10))
+	}
+	req.URL.RawQuery = params.Encode()
+	req.Header.Set("Content-Length", strconv.FormatInt(contentLength, 10))
+	if blobContentType != nil {
+		req.Header.Set("x-ms-blob-content-type", *blobContentType)
+	}
+	if blobContentEncoding != nil {
+		req.Header.Set("x-ms-blob-content-encoding", *blobContentEncoding)
+	}
+	if blobContentLanguage != nil {
+		req.Header.Set("x-ms-blob-content-language", *blobContentLanguage)
+	}
+	if blobContentMD5 != nil {
+		req.Header.Set("x-ms-blob-content-md5", base64.StdEncoding.EncodeToString(blobContentMD5))
+	}
+	if blobCacheControl != nil {
+		req.Header.Set("x-ms-blob-cache-control", *blobCacheControl)
+	}
+	if metadata != nil {
+		for k, v := range metadata {
+			req.Header.Set("x-ms-meta-"+k, v)
+		}
+	}
+	if leaseID != nil {
+		req.Header.Set("x-ms-lease-id", *leaseID)
+	}
+	if blobContentDisposition != nil {
+		req.Header.Set("x-ms-blob-content-disposition", *blobContentDisposition)
+	}
+	if ifModifiedSince != nil {
+		req.Header.Set("If-Modified-Since", (*ifModifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifUnmodifiedSince != nil {
+		req.Header.Set("If-Unmodified-Since", (*ifUnmodifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifMatches != nil {
+		req.Header.Set("If-Match", string(*ifMatches))
+	}
+	if ifNoneMatch != nil {
+		req.Header.Set("If-None-Match", string(*ifNoneMatch))
+	}
+	req.Header.Set("x-ms-version", ServiceVersion)
+	if requestID != nil {
+		req.Header.Set("x-ms-client-request-id", *requestID)
+	}
+	req.Header.Set("x-ms-blob-type", "BlockBlob")
+	return req, nil
+}
+
+// uploadResponder handles the response to the Upload request.
+func (client blockBlobClient) uploadResponder(resp pipeline.Response) (pipeline.Response, error) {
+	err := validateResponse(resp, http.StatusOK, http.StatusCreated)
+	if resp == nil {
+		return nil, err
+	}
+	io.Copy(ioutil.Discard, resp.Response().Body)
+	resp.Response().Body.Close()
+	return &BlockBlobUploadResponse{rawResponse: resp.Response()}, err
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zz_generated_client.go

@@ -0,0 +1,38 @@
+package azblob
+
+// Code generated by Microsoft (R) AutoRest Code Generator.
+// Changes may cause incorrect behavior and will be lost if the code is regenerated.
+
+import (
+	"github.com/Azure/azure-pipeline-go/pipeline"
+	"net/url"
+)
+
+const (
+	// ServiceVersion specifies the version of the operations used in this package.
+	ServiceVersion = "2018-03-28"
+)
+
+// managementClient is the base client for Azblob.
+type managementClient struct {
+	url url.URL
+	p   pipeline.Pipeline
+}
+
+// newManagementClient creates an instance of the managementClient client.
+func newManagementClient(url url.URL, p pipeline.Pipeline) managementClient {
+	return managementClient{
+		url: url,
+		p:   p,
+	}
+}
+
+// URL returns a copy of the URL for this client.
+func (mc managementClient) URL() url.URL {
+	return mc.url
+}
+
+// Pipeline returns the pipeline for this client.
+func (mc managementClient) Pipeline() pipeline.Pipeline {
+	return mc.p
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zz_generated_page_blob.go

@@ -0,0 +1,794 @@
+package azblob
+
+// Code generated by Microsoft (R) AutoRest Code Generator.
+// Changes may cause incorrect behavior and will be lost if the code is regenerated.
+
+import (
+	"context"
+	"encoding/base64"
+	"encoding/xml"
+	"github.com/Azure/azure-pipeline-go/pipeline"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+	"strconv"
+	"time"
+)
+
+// pageBlobClient is the client for the PageBlob methods of the Azblob service.
+type pageBlobClient struct {
+	managementClient
+}
+
+// newPageBlobClient creates an instance of the pageBlobClient client.
+func newPageBlobClient(url url.URL, p pipeline.Pipeline) pageBlobClient {
+	return pageBlobClient{newManagementClient(url, p)}
+}
+
+// ClearPages the Clear Pages operation clears a set of pages from a page blob
+//
+// contentLength is the length of the request. timeout is the timeout parameter is expressed in seconds. For more
+// information, see <a
+// href="https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/setting-timeouts-for-blob-service-operations">Setting
+// Timeouts for Blob Service Operations.</a> rangeParameter is return only the bytes of the blob in the specified
+// range. leaseID is if specified, the operation only succeeds if the container's lease is active and matches this ID.
+// ifSequenceNumberLessThanOrEqualTo is specify this header value to operate only on a blob if it has a sequence number
+// less than or equal to the specified. ifSequenceNumberLessThan is specify this header value to operate only on a blob
+// if it has a sequence number less than the specified. ifSequenceNumberEqualTo is specify this header value to operate
+// only on a blob if it has the specified sequence number. ifModifiedSince is specify this header value to operate only
+// on a blob if it has been modified since the specified date/time. ifUnmodifiedSince is specify this header value to
+// operate only on a blob if it has not been modified since the specified date/time. ifMatches is specify an ETag value
+// to operate only on blobs with a matching value. ifNoneMatch is specify an ETag value to operate only on blobs
+// without a matching value. requestID is provides a client-generated, opaque value with a 1 KB character limit that is
+// recorded in the analytics logs when storage analytics logging is enabled.
+func (client pageBlobClient) ClearPages(ctx context.Context, contentLength int64, timeout *int32, rangeParameter *string, leaseID *string, ifSequenceNumberLessThanOrEqualTo *int64, ifSequenceNumberLessThan *int64, ifSequenceNumberEqualTo *int64, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, requestID *string) (*PageBlobClearPagesResponse, error) {
+	if err := validate([]validation{
+		{targetValue: timeout,
+			constraints: []constraint{{target: "timeout", name: null, rule: false,
+				chain: []constraint{{target: "timeout", name: inclusiveMinimum, rule: 0, chain: nil}}}}}}); err != nil {
+		return nil, err
+	}
+	req, err := client.clearPagesPreparer(contentLength, timeout, rangeParameter, leaseID, ifSequenceNumberLessThanOrEqualTo, ifSequenceNumberLessThan, ifSequenceNumberEqualTo, ifModifiedSince, ifUnmodifiedSince, ifMatches, ifNoneMatch, requestID)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := client.Pipeline().Do(ctx, responderPolicyFactory{responder: client.clearPagesResponder}, req)
+	if err != nil {
+		return nil, err
+	}
+	return resp.(*PageBlobClearPagesResponse), err
+}
+
+// clearPagesPreparer prepares the ClearPages request.
+func (client pageBlobClient) clearPagesPreparer(contentLength int64, timeout *int32, rangeParameter *string, leaseID *string, ifSequenceNumberLessThanOrEqualTo *int64, ifSequenceNumberLessThan *int64, ifSequenceNumberEqualTo *int64, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, requestID *string) (pipeline.Request, error) {
+	req, err := pipeline.NewRequest("PUT", client.url, nil)
+	if err != nil {
+		return req, pipeline.NewError(err, "failed to create request")
+	}
+	params := req.URL.Query()
+	if timeout != nil {
+		params.Set("timeout", strconv.FormatInt(int64(*timeout), 10))
+	}
+	params.Set("comp", "page")
+	req.URL.RawQuery = params.Encode()
+	req.Header.Set("Content-Length", strconv.FormatInt(contentLength, 10))
+	if rangeParameter != nil {
+		req.Header.Set("x-ms-range", *rangeParameter)
+	}
+	if leaseID != nil {
+		req.Header.Set("x-ms-lease-id", *leaseID)
+	}
+	if ifSequenceNumberLessThanOrEqualTo != nil {
+		req.Header.Set("x-ms-if-sequence-number-le", strconv.FormatInt(*ifSequenceNumberLessThanOrEqualTo, 10))
+	}
+	if ifSequenceNumberLessThan != nil {
+		req.Header.Set("x-ms-if-sequence-number-lt", strconv.FormatInt(*ifSequenceNumberLessThan, 10))
+	}
+	if ifSequenceNumberEqualTo != nil {
+		req.Header.Set("x-ms-if-sequence-number-eq", strconv.FormatInt(*ifSequenceNumberEqualTo, 10))
+	}
+	if ifModifiedSince != nil {
+		req.Header.Set("If-Modified-Since", (*ifModifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifUnmodifiedSince != nil {
+		req.Header.Set("If-Unmodified-Since", (*ifUnmodifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifMatches != nil {
+		req.Header.Set("If-Match", string(*ifMatches))
+	}
+	if ifNoneMatch != nil {
+		req.Header.Set("If-None-Match", string(*ifNoneMatch))
+	}
+	req.Header.Set("x-ms-version", ServiceVersion)
+	if requestID != nil {
+		req.Header.Set("x-ms-client-request-id", *requestID)
+	}
+	req.Header.Set("x-ms-page-write", "clear")
+	return req, nil
+}
+
+// clearPagesResponder handles the response to the ClearPages request.
+func (client pageBlobClient) clearPagesResponder(resp pipeline.Response) (pipeline.Response, error) {
+	err := validateResponse(resp, http.StatusOK, http.StatusCreated)
+	if resp == nil {
+		return nil, err
+	}
+	io.Copy(ioutil.Discard, resp.Response().Body)
+	resp.Response().Body.Close()
+	return &PageBlobClearPagesResponse{rawResponse: resp.Response()}, err
+}
+
+// CopyIncremental the Copy Incremental operation copies a snapshot of the source page blob to a destination page blob.
+// The snapshot is copied such that only the differential changes between the previously copied snapshot are
+// transferred to the destination. The copied snapshots are complete copies of the original snapshot and can be read or
+// copied from as usual. This API is supported since REST version 2016-05-31.
+//
+// copySource is specifies the name of the source page blob snapshot. This value is a URL of up to 2 KB in length that
+// specifies a page blob snapshot. The value should be URL-encoded as it would appear in a request URI. The source blob
+// must either be public or must be authenticated via a shared access signature. timeout is the timeout parameter is
+// expressed in seconds. For more information, see <a
+// href="https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/setting-timeouts-for-blob-service-operations">Setting
+// Timeouts for Blob Service Operations.</a> metadata is optional. Specifies a user-defined name-value pair associated
+// with the blob. If no name-value pairs are specified, the operation will copy the metadata from the source blob or
+// file to the destination blob. If one or more name-value pairs are specified, the destination blob is created with
+// the specified metadata, and metadata is not copied from the source blob or file. Note that beginning with version
+// 2009-09-19, metadata names must adhere to the naming rules for C# identifiers. See Naming and Referencing
+// Containers, Blobs, and Metadata for more information. ifModifiedSince is specify this header value to operate only
+// on a blob if it has been modified since the specified date/time. ifUnmodifiedSince is specify this header value to
+// operate only on a blob if it has not been modified since the specified date/time. ifMatches is specify an ETag value
+// to operate only on blobs with a matching value. ifNoneMatch is specify an ETag value to operate only on blobs
+// without a matching value. requestID is provides a client-generated, opaque value with a 1 KB character limit that is
+// recorded in the analytics logs when storage analytics logging is enabled.
+func (client pageBlobClient) CopyIncremental(ctx context.Context, copySource string, timeout *int32, metadata map[string]string, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, requestID *string) (*PageBlobCopyIncrementalResponse, error) {
+	if err := validate([]validation{
+		{targetValue: timeout,
+			constraints: []constraint{{target: "timeout", name: null, rule: false,
+				chain: []constraint{{target: "timeout", name: inclusiveMinimum, rule: 0, chain: nil}}}}},
+		{targetValue: metadata,
+			constraints: []constraint{{target: "metadata", name: null, rule: false,
+				chain: []constraint{{target: "metadata", name: pattern, rule: `^[a-zA-Z]+$`, chain: nil}}}}}}); err != nil {
+		return nil, err
+	}
+	req, err := client.copyIncrementalPreparer(copySource, timeout, metadata, ifModifiedSince, ifUnmodifiedSince, ifMatches, ifNoneMatch, requestID)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := client.Pipeline().Do(ctx, responderPolicyFactory{responder: client.copyIncrementalResponder}, req)
+	if err != nil {
+		return nil, err
+	}
+	return resp.(*PageBlobCopyIncrementalResponse), err
+}
+
+// copyIncrementalPreparer prepares the CopyIncremental request.
+func (client pageBlobClient) copyIncrementalPreparer(copySource string, timeout *int32, metadata map[string]string, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, requestID *string) (pipeline.Request, error) {
+	req, err := pipeline.NewRequest("PUT", client.url, nil)
+	if err != nil {
+		return req, pipeline.NewError(err, "failed to create request")
+	}
+	params := req.URL.Query()
+	if timeout != nil {
+		params.Set("timeout", strconv.FormatInt(int64(*timeout), 10))
+	}
+	params.Set("comp", "incrementalcopy")
+	req.URL.RawQuery = params.Encode()
+	if metadata != nil {
+		for k, v := range metadata {
+			req.Header.Set("x-ms-meta-"+k, v)
+		}
+	}
+	if ifModifiedSince != nil {
+		req.Header.Set("If-Modified-Since", (*ifModifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifUnmodifiedSince != nil {
+		req.Header.Set("If-Unmodified-Since", (*ifUnmodifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifMatches != nil {
+		req.Header.Set("If-Match", string(*ifMatches))
+	}
+	if ifNoneMatch != nil {
+		req.Header.Set("If-None-Match", string(*ifNoneMatch))
+	}
+	req.Header.Set("x-ms-copy-source", copySource)
+	req.Header.Set("x-ms-version", ServiceVersion)
+	if requestID != nil {
+		req.Header.Set("x-ms-client-request-id", *requestID)
+	}
+	return req, nil
+}
+
+// copyIncrementalResponder handles the response to the CopyIncremental request.
+func (client pageBlobClient) copyIncrementalResponder(resp pipeline.Response) (pipeline.Response, error) {
+	err := validateResponse(resp, http.StatusOK, http.StatusAccepted)
+	if resp == nil {
+		return nil, err
+	}
+	io.Copy(ioutil.Discard, resp.Response().Body)
+	resp.Response().Body.Close()
+	return &PageBlobCopyIncrementalResponse{rawResponse: resp.Response()}, err
+}
+
+// Create the Create operation creates a new page blob.
+//
+// contentLength is the length of the request. timeout is the timeout parameter is expressed in seconds. For more
+// information, see <a
+// href="https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/setting-timeouts-for-blob-service-operations">Setting
+// Timeouts for Blob Service Operations.</a> blobContentType is optional. Sets the blob's content type. If specified,
+// this property is stored with the blob and returned with a read request. blobContentEncoding is optional. Sets the
+// blob's content encoding. If specified, this property is stored with the blob and returned with a read request.
+// blobContentLanguage is optional. Set the blob's content language. If specified, this property is stored with the
+// blob and returned with a read request. blobContentMD5 is optional. An MD5 hash of the blob content. Note that this
+// hash is not validated, as the hashes for the individual blocks were validated when each was uploaded.
+// blobCacheControl is optional. Sets the blob's cache control. If specified, this property is stored with the blob and
+// returned with a read request. metadata is optional. Specifies a user-defined name-value pair associated with the
+// blob. If no name-value pairs are specified, the operation will copy the metadata from the source blob or file to the
+// destination blob. If one or more name-value pairs are specified, the destination blob is created with the specified
+// metadata, and metadata is not copied from the source blob or file. Note that beginning with version 2009-09-19,
+// metadata names must adhere to the naming rules for C# identifiers. See Naming and Referencing Containers, Blobs, and
+// Metadata for more information. leaseID is if specified, the operation only succeeds if the container's lease is
+// active and matches this ID. blobContentDisposition is optional. Sets the blob's Content-Disposition header.
+// ifModifiedSince is specify this header value to operate only on a blob if it has been modified since the specified
+// date/time. ifUnmodifiedSince is specify this header value to operate only on a blob if it has not been modified
+// since the specified date/time. ifMatches is specify an ETag value to operate only on blobs with a matching value.
+// ifNoneMatch is specify an ETag value to operate only on blobs without a matching value. blobContentLength is this
+// header specifies the maximum size for the page blob, up to 1 TB. The page blob size must be aligned to a 512-byte
+// boundary. blobSequenceNumber is set for page blobs only. The sequence number is a user-controlled value that you can
+// use to track requests. The value of the sequence number must be between 0 and 2^63 - 1. requestID is provides a
+// client-generated, opaque value with a 1 KB character limit that is recorded in the analytics logs when storage
+// analytics logging is enabled.
+func (client pageBlobClient) Create(ctx context.Context, contentLength int64, timeout *int32, blobContentType *string, blobContentEncoding *string, blobContentLanguage *string, blobContentMD5 []byte, blobCacheControl *string, metadata map[string]string, leaseID *string, blobContentDisposition *string, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, blobContentLength *int64, blobSequenceNumber *int64, requestID *string) (*PageBlobCreateResponse, error) {
+	if err := validate([]validation{
+		{targetValue: timeout,
+			constraints: []constraint{{target: "timeout", name: null, rule: false,
+				chain: []constraint{{target: "timeout", name: inclusiveMinimum, rule: 0, chain: nil}}}}},
+		{targetValue: metadata,
+			constraints: []constraint{{target: "metadata", name: null, rule: false,
+				chain: []constraint{{target: "metadata", name: pattern, rule: `^[a-zA-Z]+$`, chain: nil}}}}}}); err != nil {
+		return nil, err
+	}
+	req, err := client.createPreparer(contentLength, timeout, blobContentType, blobContentEncoding, blobContentLanguage, blobContentMD5, blobCacheControl, metadata, leaseID, blobContentDisposition, ifModifiedSince, ifUnmodifiedSince, ifMatches, ifNoneMatch, blobContentLength, blobSequenceNumber, requestID)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := client.Pipeline().Do(ctx, responderPolicyFactory{responder: client.createResponder}, req)
+	if err != nil {
+		return nil, err
+	}
+	return resp.(*PageBlobCreateResponse), err
+}
+
+// createPreparer prepares the Create request.
+func (client pageBlobClient) createPreparer(contentLength int64, timeout *int32, blobContentType *string, blobContentEncoding *string, blobContentLanguage *string, blobContentMD5 []byte, blobCacheControl *string, metadata map[string]string, leaseID *string, blobContentDisposition *string, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, blobContentLength *int64, blobSequenceNumber *int64, requestID *string) (pipeline.Request, error) {
+	req, err := pipeline.NewRequest("PUT", client.url, nil)
+	if err != nil {
+		return req, pipeline.NewError(err, "failed to create request")
+	}
+	params := req.URL.Query()
+	if timeout != nil {
+		params.Set("timeout", strconv.FormatInt(int64(*timeout), 10))
+	}
+	req.URL.RawQuery = params.Encode()
+	req.Header.Set("Content-Length", strconv.FormatInt(contentLength, 10))
+	if blobContentType != nil {
+		req.Header.Set("x-ms-blob-content-type", *blobContentType)
+	}
+	if blobContentEncoding != nil {
+		req.Header.Set("x-ms-blob-content-encoding", *blobContentEncoding)
+	}
+	if blobContentLanguage != nil {
+		req.Header.Set("x-ms-blob-content-language", *blobContentLanguage)
+	}
+	if blobContentMD5 != nil {
+		req.Header.Set("x-ms-blob-content-md5", base64.StdEncoding.EncodeToString(blobContentMD5))
+	}
+	if blobCacheControl != nil {
+		req.Header.Set("x-ms-blob-cache-control", *blobCacheControl)
+	}
+	if metadata != nil {
+		for k, v := range metadata {
+			req.Header.Set("x-ms-meta-"+k, v)
+		}
+	}
+	if leaseID != nil {
+		req.Header.Set("x-ms-lease-id", *leaseID)
+	}
+	if blobContentDisposition != nil {
+		req.Header.Set("x-ms-blob-content-disposition", *blobContentDisposition)
+	}
+	if ifModifiedSince != nil {
+		req.Header.Set("If-Modified-Since", (*ifModifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifUnmodifiedSince != nil {
+		req.Header.Set("If-Unmodified-Since", (*ifUnmodifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifMatches != nil {
+		req.Header.Set("If-Match", string(*ifMatches))
+	}
+	if ifNoneMatch != nil {
+		req.Header.Set("If-None-Match", string(*ifNoneMatch))
+	}
+	if blobContentLength != nil {
+		req.Header.Set("x-ms-blob-content-length", strconv.FormatInt(*blobContentLength, 10))
+	}
+	if blobSequenceNumber != nil {
+		req.Header.Set("x-ms-blob-sequence-number", strconv.FormatInt(*blobSequenceNumber, 10))
+	}
+	req.Header.Set("x-ms-version", ServiceVersion)
+	if requestID != nil {
+		req.Header.Set("x-ms-client-request-id", *requestID)
+	}
+	req.Header.Set("x-ms-blob-type", "PageBlob")
+	return req, nil
+}
+
+// createResponder handles the response to the Create request.
+func (client pageBlobClient) createResponder(resp pipeline.Response) (pipeline.Response, error) {
+	err := validateResponse(resp, http.StatusOK, http.StatusCreated)
+	if resp == nil {
+		return nil, err
+	}
+	io.Copy(ioutil.Discard, resp.Response().Body)
+	resp.Response().Body.Close()
+	return &PageBlobCreateResponse{rawResponse: resp.Response()}, err
+}
+
+// GetPageRanges the Get Page Ranges operation returns the list of valid page ranges for a page blob or snapshot of a
+// page blob
+//
+// snapshot is the snapshot parameter is an opaque DateTime value that, when present, specifies the blob snapshot to
+// retrieve. For more information on working with blob snapshots, see <a
+// href="https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/creating-a-snapshot-of-a-blob">Creating
+// a Snapshot of a Blob.</a> timeout is the timeout parameter is expressed in seconds. For more information, see <a
+// href="https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/setting-timeouts-for-blob-service-operations">Setting
+// Timeouts for Blob Service Operations.</a> rangeParameter is return only the bytes of the blob in the specified
+// range. leaseID is if specified, the operation only succeeds if the container's lease is active and matches this ID.
+// ifModifiedSince is specify this header value to operate only on a blob if it has been modified since the specified
+// date/time. ifUnmodifiedSince is specify this header value to operate only on a blob if it has not been modified
+// since the specified date/time. ifMatches is specify an ETag value to operate only on blobs with a matching value.
+// ifNoneMatch is specify an ETag value to operate only on blobs without a matching value. requestID is provides a
+// client-generated, opaque value with a 1 KB character limit that is recorded in the analytics logs when storage
+// analytics logging is enabled.
+func (client pageBlobClient) GetPageRanges(ctx context.Context, snapshot *string, timeout *int32, rangeParameter *string, leaseID *string, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, requestID *string) (*PageList, error) {
+	if err := validate([]validation{
+		{targetValue: timeout,
+			constraints: []constraint{{target: "timeout", name: null, rule: false,
+				chain: []constraint{{target: "timeout", name: inclusiveMinimum, rule: 0, chain: nil}}}}}}); err != nil {
+		return nil, err
+	}
+	req, err := client.getPageRangesPreparer(snapshot, timeout, rangeParameter, leaseID, ifModifiedSince, ifUnmodifiedSince, ifMatches, ifNoneMatch, requestID)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := client.Pipeline().Do(ctx, responderPolicyFactory{responder: client.getPageRangesResponder}, req)
+	if err != nil {
+		return nil, err
+	}
+	return resp.(*PageList), err
+}
+
+// getPageRangesPreparer prepares the GetPageRanges request.
+func (client pageBlobClient) getPageRangesPreparer(snapshot *string, timeout *int32, rangeParameter *string, leaseID *string, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, requestID *string) (pipeline.Request, error) {
+	req, err := pipeline.NewRequest("GET", client.url, nil)
+	if err != nil {
+		return req, pipeline.NewError(err, "failed to create request")
+	}
+	params := req.URL.Query()
+	if snapshot != nil && len(*snapshot) > 0 {
+		params.Set("snapshot", *snapshot)
+	}
+	if timeout != nil {
+		params.Set("timeout", strconv.FormatInt(int64(*timeout), 10))
+	}
+	params.Set("comp", "pagelist")
+	req.URL.RawQuery = params.Encode()
+	if rangeParameter != nil {
+		req.Header.Set("x-ms-range", *rangeParameter)
+	}
+	if leaseID != nil {
+		req.Header.Set("x-ms-lease-id", *leaseID)
+	}
+	if ifModifiedSince != nil {
+		req.Header.Set("If-Modified-Since", (*ifModifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifUnmodifiedSince != nil {
+		req.Header.Set("If-Unmodified-Since", (*ifUnmodifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifMatches != nil {
+		req.Header.Set("If-Match", string(*ifMatches))
+	}
+	if ifNoneMatch != nil {
+		req.Header.Set("If-None-Match", string(*ifNoneMatch))
+	}
+	req.Header.Set("x-ms-version", ServiceVersion)
+	if requestID != nil {
+		req.Header.Set("x-ms-client-request-id", *requestID)
+	}
+	return req, nil
+}
+
+// getPageRangesResponder handles the response to the GetPageRanges request.
+func (client pageBlobClient) getPageRangesResponder(resp pipeline.Response) (pipeline.Response, error) {
+	err := validateResponse(resp, http.StatusOK)
+	if resp == nil {
+		return nil, err
+	}
+	result := &PageList{rawResponse: resp.Response()}
+	if err != nil {
+		return result, err
+	}
+	defer resp.Response().Body.Close()
+	b, err := ioutil.ReadAll(resp.Response().Body)
+	if err != nil {
+		return result, NewResponseError(err, resp.Response(), "failed to read response body")
+	}
+	if len(b) > 0 {
+		b = removeBOM(b)
+		err = xml.Unmarshal(b, result)
+		if err != nil {
+			return result, NewResponseError(err, resp.Response(), "failed to unmarshal response body")
+		}
+	}
+	return result, nil
+}
+
+// GetPageRangesDiff [Update] The Get Page Ranges Diff operation returns the list of valid page ranges for a page blob
+// that were changed between target blob and previous snapshot.
+//
+// snapshot is the snapshot parameter is an opaque DateTime value that, when present, specifies the blob snapshot to
+// retrieve. For more information on working with blob snapshots, see <a
+// href="https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/creating-a-snapshot-of-a-blob">Creating
+// a Snapshot of a Blob.</a> timeout is the timeout parameter is expressed in seconds. For more information, see <a
+// href="https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/setting-timeouts-for-blob-service-operations">Setting
+// Timeouts for Blob Service Operations.</a> prevsnapshot is optional in version 2015-07-08 and newer. The prevsnapshot
+// parameter is a DateTime value that specifies that the response will contain only pages that were changed between
+// target blob and previous snapshot. Changed pages include both updated and cleared pages. The target blob may be a
+// snapshot, as long as the snapshot specified by prevsnapshot is the older of the two. Note that incremental snapshots
+// are currently supported only for blobs created on or after January 1, 2016. rangeParameter is return only the bytes
+// of the blob in the specified range. leaseID is if specified, the operation only succeeds if the container's lease is
+// active and matches this ID. ifModifiedSince is specify this header value to operate only on a blob if it has been
+// modified since the specified date/time. ifUnmodifiedSince is specify this header value to operate only on a blob if
+// it has not been modified since the specified date/time. ifMatches is specify an ETag value to operate only on blobs
+// with a matching value. ifNoneMatch is specify an ETag value to operate only on blobs without a matching value.
+// requestID is provides a client-generated, opaque value with a 1 KB character limit that is recorded in the analytics
+// logs when storage analytics logging is enabled.
+func (client pageBlobClient) GetPageRangesDiff(ctx context.Context, snapshot *string, timeout *int32, prevsnapshot *string, rangeParameter *string, leaseID *string, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, requestID *string) (*PageList, error) {
+	if err := validate([]validation{
+		{targetValue: timeout,
+			constraints: []constraint{{target: "timeout", name: null, rule: false,
+				chain: []constraint{{target: "timeout", name: inclusiveMinimum, rule: 0, chain: nil}}}}}}); err != nil {
+		return nil, err
+	}
+	req, err := client.getPageRangesDiffPreparer(snapshot, timeout, prevsnapshot, rangeParameter, leaseID, ifModifiedSince, ifUnmodifiedSince, ifMatches, ifNoneMatch, requestID)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := client.Pipeline().Do(ctx, responderPolicyFactory{responder: client.getPageRangesDiffResponder}, req)
+	if err != nil {
+		return nil, err
+	}
+	return resp.(*PageList), err
+}
+
+// getPageRangesDiffPreparer prepares the GetPageRangesDiff request.
+func (client pageBlobClient) getPageRangesDiffPreparer(snapshot *string, timeout *int32, prevsnapshot *string, rangeParameter *string, leaseID *string, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, requestID *string) (pipeline.Request, error) {
+	req, err := pipeline.NewRequest("GET", client.url, nil)
+	if err != nil {
+		return req, pipeline.NewError(err, "failed to create request")
+	}
+	params := req.URL.Query()
+	if snapshot != nil && len(*snapshot) > 0 {
+		params.Set("snapshot", *snapshot)
+	}
+	if timeout != nil {
+		params.Set("timeout", strconv.FormatInt(int64(*timeout), 10))
+	}
+	if prevsnapshot != nil && len(*prevsnapshot) > 0 {
+		params.Set("prevsnapshot", *prevsnapshot)
+	}
+	params.Set("comp", "pagelist")
+	req.URL.RawQuery = params.Encode()
+	if rangeParameter != nil {
+		req.Header.Set("x-ms-range", *rangeParameter)
+	}
+	if leaseID != nil {
+		req.Header.Set("x-ms-lease-id", *leaseID)
+	}
+	if ifModifiedSince != nil {
+		req.Header.Set("If-Modified-Since", (*ifModifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifUnmodifiedSince != nil {
+		req.Header.Set("If-Unmodified-Since", (*ifUnmodifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifMatches != nil {
+		req.Header.Set("If-Match", string(*ifMatches))
+	}
+	if ifNoneMatch != nil {
+		req.Header.Set("If-None-Match", string(*ifNoneMatch))
+	}
+	req.Header.Set("x-ms-version", ServiceVersion)
+	if requestID != nil {
+		req.Header.Set("x-ms-client-request-id", *requestID)
+	}
+	return req, nil
+}
+
+// getPageRangesDiffResponder handles the response to the GetPageRangesDiff request.
+func (client pageBlobClient) getPageRangesDiffResponder(resp pipeline.Response) (pipeline.Response, error) {
+	err := validateResponse(resp, http.StatusOK)
+	if resp == nil {
+		return nil, err
+	}
+	result := &PageList{rawResponse: resp.Response()}
+	if err != nil {
+		return result, err
+	}
+	defer resp.Response().Body.Close()
+	b, err := ioutil.ReadAll(resp.Response().Body)
+	if err != nil {
+		return result, NewResponseError(err, resp.Response(), "failed to read response body")
+	}
+	if len(b) > 0 {
+		b = removeBOM(b)
+		err = xml.Unmarshal(b, result)
+		if err != nil {
+			return result, NewResponseError(err, resp.Response(), "failed to unmarshal response body")
+		}
+	}
+	return result, nil
+}
+
+// Resize resize the Blob
+//
+// blobContentLength is this header specifies the maximum size for the page blob, up to 1 TB. The page blob size must
+// be aligned to a 512-byte boundary. timeout is the timeout parameter is expressed in seconds. For more information,
+// see <a
+// href="https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/setting-timeouts-for-blob-service-operations">Setting
+// Timeouts for Blob Service Operations.</a> leaseID is if specified, the operation only succeeds if the container's
+// lease is active and matches this ID. ifModifiedSince is specify this header value to operate only on a blob if it
+// has been modified since the specified date/time. ifUnmodifiedSince is specify this header value to operate only on a
+// blob if it has not been modified since the specified date/time. ifMatches is specify an ETag value to operate only
+// on blobs with a matching value. ifNoneMatch is specify an ETag value to operate only on blobs without a matching
+// value. requestID is provides a client-generated, opaque value with a 1 KB character limit that is recorded in the
+// analytics logs when storage analytics logging is enabled.
+func (client pageBlobClient) Resize(ctx context.Context, blobContentLength int64, timeout *int32, leaseID *string, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, requestID *string) (*PageBlobResizeResponse, error) {
+	if err := validate([]validation{
+		{targetValue: timeout,
+			constraints: []constraint{{target: "timeout", name: null, rule: false,
+				chain: []constraint{{target: "timeout", name: inclusiveMinimum, rule: 0, chain: nil}}}}}}); err != nil {
+		return nil, err
+	}
+	req, err := client.resizePreparer(blobContentLength, timeout, leaseID, ifModifiedSince, ifUnmodifiedSince, ifMatches, ifNoneMatch, requestID)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := client.Pipeline().Do(ctx, responderPolicyFactory{responder: client.resizeResponder}, req)
+	if err != nil {
+		return nil, err
+	}
+	return resp.(*PageBlobResizeResponse), err
+}
+
+// resizePreparer prepares the Resize request.
+func (client pageBlobClient) resizePreparer(blobContentLength int64, timeout *int32, leaseID *string, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, requestID *string) (pipeline.Request, error) {
+	req, err := pipeline.NewRequest("PUT", client.url, nil)
+	if err != nil {
+		return req, pipeline.NewError(err, "failed to create request")
+	}
+	params := req.URL.Query()
+	if timeout != nil {
+		params.Set("timeout", strconv.FormatInt(int64(*timeout), 10))
+	}
+	params.Set("comp", "properties")
+	req.URL.RawQuery = params.Encode()
+	if leaseID != nil {
+		req.Header.Set("x-ms-lease-id", *leaseID)
+	}
+	if ifModifiedSince != nil {
+		req.Header.Set("If-Modified-Since", (*ifModifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifUnmodifiedSince != nil {
+		req.Header.Set("If-Unmodified-Since", (*ifUnmodifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifMatches != nil {
+		req.Header.Set("If-Match", string(*ifMatches))
+	}
+	if ifNoneMatch != nil {
+		req.Header.Set("If-None-Match", string(*ifNoneMatch))
+	}
+	req.Header.Set("x-ms-blob-content-length", strconv.FormatInt(blobContentLength, 10))
+	req.Header.Set("x-ms-version", ServiceVersion)
+	if requestID != nil {
+		req.Header.Set("x-ms-client-request-id", *requestID)
+	}
+	return req, nil
+}
+
+// resizeResponder handles the response to the Resize request.
+func (client pageBlobClient) resizeResponder(resp pipeline.Response) (pipeline.Response, error) {
+	err := validateResponse(resp, http.StatusOK)
+	if resp == nil {
+		return nil, err
+	}
+	io.Copy(ioutil.Discard, resp.Response().Body)
+	resp.Response().Body.Close()
+	return &PageBlobResizeResponse{rawResponse: resp.Response()}, err
+}
+
+// UpdateSequenceNumber update the sequence number of the blob
+//
+// sequenceNumberAction is required if the x-ms-blob-sequence-number header is set for the request. This property
+// applies to page blobs only. This property indicates how the service should modify the blob's sequence number timeout
+// is the timeout parameter is expressed in seconds. For more information, see <a
+// href="https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/setting-timeouts-for-blob-service-operations">Setting
+// Timeouts for Blob Service Operations.</a> leaseID is if specified, the operation only succeeds if the container's
+// lease is active and matches this ID. ifModifiedSince is specify this header value to operate only on a blob if it
+// has been modified since the specified date/time. ifUnmodifiedSince is specify this header value to operate only on a
+// blob if it has not been modified since the specified date/time. ifMatches is specify an ETag value to operate only
+// on blobs with a matching value. ifNoneMatch is specify an ETag value to operate only on blobs without a matching
+// value. blobSequenceNumber is set for page blobs only. The sequence number is a user-controlled value that you can
+// use to track requests. The value of the sequence number must be between 0 and 2^63 - 1. requestID is provides a
+// client-generated, opaque value with a 1 KB character limit that is recorded in the analytics logs when storage
+// analytics logging is enabled.
+func (client pageBlobClient) UpdateSequenceNumber(ctx context.Context, sequenceNumberAction SequenceNumberActionType, timeout *int32, leaseID *string, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, blobSequenceNumber *int64, requestID *string) (*PageBlobUpdateSequenceNumberResponse, error) {
+	if err := validate([]validation{
+		{targetValue: timeout,
+			constraints: []constraint{{target: "timeout", name: null, rule: false,
+				chain: []constraint{{target: "timeout", name: inclusiveMinimum, rule: 0, chain: nil}}}}}}); err != nil {
+		return nil, err
+	}
+	req, err := client.updateSequenceNumberPreparer(sequenceNumberAction, timeout, leaseID, ifModifiedSince, ifUnmodifiedSince, ifMatches, ifNoneMatch, blobSequenceNumber, requestID)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := client.Pipeline().Do(ctx, responderPolicyFactory{responder: client.updateSequenceNumberResponder}, req)
+	if err != nil {
+		return nil, err
+	}
+	return resp.(*PageBlobUpdateSequenceNumberResponse), err
+}
+
+// updateSequenceNumberPreparer prepares the UpdateSequenceNumber request.
+func (client pageBlobClient) updateSequenceNumberPreparer(sequenceNumberAction SequenceNumberActionType, timeout *int32, leaseID *string, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, blobSequenceNumber *int64, requestID *string) (pipeline.Request, error) {
+	req, err := pipeline.NewRequest("PUT", client.url, nil)
+	if err != nil {
+		return req, pipeline.NewError(err, "failed to create request")
+	}
+	params := req.URL.Query()
+	if timeout != nil {
+		params.Set("timeout", strconv.FormatInt(int64(*timeout), 10))
+	}
+	params.Set("comp", "properties")
+	req.URL.RawQuery = params.Encode()
+	if leaseID != nil {
+		req.Header.Set("x-ms-lease-id", *leaseID)
+	}
+	if ifModifiedSince != nil {
+		req.Header.Set("If-Modified-Since", (*ifModifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifUnmodifiedSince != nil {
+		req.Header.Set("If-Unmodified-Since", (*ifUnmodifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifMatches != nil {
+		req.Header.Set("If-Match", string(*ifMatches))
+	}
+	if ifNoneMatch != nil {
+		req.Header.Set("If-None-Match", string(*ifNoneMatch))
+	}
+	req.Header.Set("x-ms-sequence-number-action", string(sequenceNumberAction))
+	if blobSequenceNumber != nil {
+		req.Header.Set("x-ms-blob-sequence-number", strconv.FormatInt(*blobSequenceNumber, 10))
+	}
+	req.Header.Set("x-ms-version", ServiceVersion)
+	if requestID != nil {
+		req.Header.Set("x-ms-client-request-id", *requestID)
+	}
+	return req, nil
+}
+
+// updateSequenceNumberResponder handles the response to the UpdateSequenceNumber request.
+func (client pageBlobClient) updateSequenceNumberResponder(resp pipeline.Response) (pipeline.Response, error) {
+	err := validateResponse(resp, http.StatusOK)
+	if resp == nil {
+		return nil, err
+	}
+	io.Copy(ioutil.Discard, resp.Response().Body)
+	resp.Response().Body.Close()
+	return &PageBlobUpdateSequenceNumberResponse{rawResponse: resp.Response()}, err
+}
+
+// UploadPages the Upload Pages operation writes a range of pages to a page blob
+//
+// body is initial data body will be closed upon successful return. Callers should ensure closure when receiving an
+// error.contentLength is the length of the request. timeout is the timeout parameter is expressed in seconds. For more
+// information, see <a
+// href="https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/setting-timeouts-for-blob-service-operations">Setting
+// Timeouts for Blob Service Operations.</a> rangeParameter is return only the bytes of the blob in the specified
+// range. leaseID is if specified, the operation only succeeds if the container's lease is active and matches this ID.
+// ifSequenceNumberLessThanOrEqualTo is specify this header value to operate only on a blob if it has a sequence number
+// less than or equal to the specified. ifSequenceNumberLessThan is specify this header value to operate only on a blob
+// if it has a sequence number less than the specified. ifSequenceNumberEqualTo is specify this header value to operate
+// only on a blob if it has the specified sequence number. ifModifiedSince is specify this header value to operate only
+// on a blob if it has been modified since the specified date/time. ifUnmodifiedSince is specify this header value to
+// operate only on a blob if it has not been modified since the specified date/time. ifMatches is specify an ETag value
+// to operate only on blobs with a matching value. ifNoneMatch is specify an ETag value to operate only on blobs
+// without a matching value. requestID is provides a client-generated, opaque value with a 1 KB character limit that is
+// recorded in the analytics logs when storage analytics logging is enabled.
+func (client pageBlobClient) UploadPages(ctx context.Context, body io.ReadSeeker, contentLength int64, timeout *int32, rangeParameter *string, leaseID *string, ifSequenceNumberLessThanOrEqualTo *int64, ifSequenceNumberLessThan *int64, ifSequenceNumberEqualTo *int64, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, requestID *string) (*PageBlobUploadPagesResponse, error) {
+	if err := validate([]validation{
+		{targetValue: body,
+			constraints: []constraint{{target: "body", name: null, rule: true, chain: nil}}},
+		{targetValue: timeout,
+			constraints: []constraint{{target: "timeout", name: null, rule: false,
+				chain: []constraint{{target: "timeout", name: inclusiveMinimum, rule: 0, chain: nil}}}}}}); err != nil {
+		return nil, err
+	}
+	req, err := client.uploadPagesPreparer(body, contentLength, timeout, rangeParameter, leaseID, ifSequenceNumberLessThanOrEqualTo, ifSequenceNumberLessThan, ifSequenceNumberEqualTo, ifModifiedSince, ifUnmodifiedSince, ifMatches, ifNoneMatch, requestID)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := client.Pipeline().Do(ctx, responderPolicyFactory{responder: client.uploadPagesResponder}, req)
+	if err != nil {
+		return nil, err
+	}
+	return resp.(*PageBlobUploadPagesResponse), err
+}
+
+// uploadPagesPreparer prepares the UploadPages request.
+func (client pageBlobClient) uploadPagesPreparer(body io.ReadSeeker, contentLength int64, timeout *int32, rangeParameter *string, leaseID *string, ifSequenceNumberLessThanOrEqualTo *int64, ifSequenceNumberLessThan *int64, ifSequenceNumberEqualTo *int64, ifModifiedSince *time.Time, ifUnmodifiedSince *time.Time, ifMatches *ETag, ifNoneMatch *ETag, requestID *string) (pipeline.Request, error) {
+	req, err := pipeline.NewRequest("PUT", client.url, body)
+	if err != nil {
+		return req, pipeline.NewError(err, "failed to create request")
+	}
+	params := req.URL.Query()
+	if timeout != nil {
+		params.Set("timeout", strconv.FormatInt(int64(*timeout), 10))
+	}
+	params.Set("comp", "page")
+	req.URL.RawQuery = params.Encode()
+	req.Header.Set("Content-Length", strconv.FormatInt(contentLength, 10))
+	if rangeParameter != nil {
+		req.Header.Set("x-ms-range", *rangeParameter)
+	}
+	if leaseID != nil {
+		req.Header.Set("x-ms-lease-id", *leaseID)
+	}
+	if ifSequenceNumberLessThanOrEqualTo != nil {
+		req.Header.Set("x-ms-if-sequence-number-le", strconv.FormatInt(*ifSequenceNumberLessThanOrEqualTo, 10))
+	}
+	if ifSequenceNumberLessThan != nil {
+		req.Header.Set("x-ms-if-sequence-number-lt", strconv.FormatInt(*ifSequenceNumberLessThan, 10))
+	}
+	if ifSequenceNumberEqualTo != nil {
+		req.Header.Set("x-ms-if-sequence-number-eq", strconv.FormatInt(*ifSequenceNumberEqualTo, 10))
+	}
+	if ifModifiedSince != nil {
+		req.Header.Set("If-Modified-Since", (*ifModifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifUnmodifiedSince != nil {
+		req.Header.Set("If-Unmodified-Since", (*ifUnmodifiedSince).In(gmt).Format(time.RFC1123))
+	}
+	if ifMatches != nil {
+		req.Header.Set("If-Match", string(*ifMatches))
+	}
+	if ifNoneMatch != nil {
+		req.Header.Set("If-None-Match", string(*ifNoneMatch))
+	}
+	req.Header.Set("x-ms-version", ServiceVersion)
+	if requestID != nil {
+		req.Header.Set("x-ms-client-request-id", *requestID)
+	}
+	req.Header.Set("x-ms-page-write", "update")
+	return req, nil
+}
+
+// uploadPagesResponder handles the response to the UploadPages request.
+func (client pageBlobClient) uploadPagesResponder(resp pipeline.Response) (pipeline.Response, error) {
+	err := validateResponse(resp, http.StatusOK, http.StatusCreated)
+	if resp == nil {
+		return nil, err
+	}
+	io.Copy(ioutil.Discard, resp.Response().Body)
+	resp.Response().Body.Close()
+	return &PageBlobUploadPagesResponse{rawResponse: resp.Response()}, err
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zz_generated_responder_policy.go

@@ -0,0 +1,74 @@
+package azblob
+
+// Code generated by Microsoft (R) AutoRest Code Generator.
+// Changes may cause incorrect behavior and will be lost if the code is regenerated.
+
+import (
+	"bytes"
+	"context"
+	"encoding/xml"
+	"github.com/Azure/azure-pipeline-go/pipeline"
+	"io/ioutil"
+)
+
+type responder func(resp pipeline.Response) (result pipeline.Response, err error)
+
+// ResponderPolicyFactory is a Factory capable of creating a responder pipeline.
+type responderPolicyFactory struct {
+	responder responder
+}
+
+// New creates a responder policy factory.
+func (arpf responderPolicyFactory) New(next pipeline.Policy, po *pipeline.PolicyOptions) pipeline.Policy {
+	return responderPolicy{next: next, responder: arpf.responder}
+}
+
+type responderPolicy struct {
+	next      pipeline.Policy
+	responder responder
+}
+
+// Do sends the request to the service and validates/deserializes the HTTP response.
+func (arp responderPolicy) Do(ctx context.Context, request pipeline.Request) (pipeline.Response, error) {
+	resp, err := arp.next.Do(ctx, request)
+	if err != nil {
+		return resp, err
+	}
+	return arp.responder(resp)
+}
+
+// validateResponse checks an HTTP response's status code against a legal set of codes.
+// If the response code is not legal, then validateResponse reads all of the response's body
+// (containing error information) and returns a response error.
+func validateResponse(resp pipeline.Response, successStatusCodes ...int) error {
+	if resp == nil {
+		return NewResponseError(nil, nil, "nil response")
+	}
+	responseCode := resp.Response().StatusCode
+	for _, i := range successStatusCodes {
+		if i == responseCode {
+			return nil
+		}
+	}
+	// only close the body in the failure case. in the
+	// success case responders will close the body as required.
+	defer resp.Response().Body.Close()
+	b, err := ioutil.ReadAll(resp.Response().Body)
+	if err != nil {
+		return NewResponseError(err, resp.Response(), "failed to read response body")
+	}
+	// the service code, description and details will be populated during unmarshalling
+	responseError := NewResponseError(nil, resp.Response(), resp.Response().Status)
+	if len(b) > 0 {
+		if err = xml.Unmarshal(b, &responseError); err != nil {
+			return NewResponseError(err, resp.Response(), "failed to unmarshal response body")
+		}
+	}
+	return responseError
+}
+
+// removes any BOM from the byte slice
+func removeBOM(b []byte) []byte {
+	// UTF8
+	return bytes.TrimPrefix(b, []byte("\xef\xbb\xbf"))
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zz_generated_response_error.go

@@ -0,0 +1,95 @@
+package azblob
+
+// Code generated by Microsoft (R) AutoRest Code Generator.
+// Changes may cause incorrect behavior and will be lost if the code is regenerated.
+
+import (
+	"bytes"
+	"fmt"
+	"github.com/Azure/azure-pipeline-go/pipeline"
+	"net"
+	"net/http"
+)
+
+// if you want to provide custom error handling set this variable to your constructor function
+var responseErrorFactory func(cause error, response *http.Response, description string) error
+
+// ResponseError identifies a responder-generated network or response parsing error.
+type ResponseError interface {
+	// Error exposes the Error(), Temporary() and Timeout() methods.
+	net.Error // Includes the Go error interface
+	// Response returns the HTTP response. You may examine this but you should not modify it.
+	Response() *http.Response
+}
+
+// NewResponseError creates an error object that implements the error interface.
+func NewResponseError(cause error, response *http.Response, description string) error {
+	if responseErrorFactory != nil {
+		return responseErrorFactory(cause, response, description)
+	}
+	return &responseError{
+		ErrorNode:   pipeline.ErrorNode{}.Initialize(cause, 3),
+		response:    response,
+		description: description,
+	}
+}
+
+// responseError is the internal struct that implements the public ResponseError interface.
+type responseError struct {
+	pipeline.ErrorNode // This is embedded so that responseError "inherits" Error, Temporary, Timeout, and Cause
+	response           *http.Response
+	description        string
+}
+
+// Error implements the error interface's Error method to return a string representation of the error.
+func (e *responseError) Error() string {
+	b := &bytes.Buffer{}
+	fmt.Fprintf(b, "===== RESPONSE ERROR (Code=%v) =====\n", e.response.StatusCode)
+	fmt.Fprintf(b, "Status=%s, Description: %s\n", e.response.Status, e.description)
+	s := b.String()
+	return e.ErrorNode.Error(s)
+}
+
+// Response implements the ResponseError interface's method to return the HTTP response.
+func (e *responseError) Response() *http.Response {
+	return e.response
+}
+
+// RFC7807 PROBLEM ------------------------------------------------------------------------------------
+// RFC7807Problem ... This type can be publicly embedded in another type that wants to add additional members.
+/*type RFC7807Problem struct {
+	// Mandatory: A (relative) URI reference identifying the problem type (it MAY refer to human-readable documentation).
+	typeURI string // Should default to "about:blank"
+	// Optional: Short, human-readable summary (maybe localized).
+	title string
+	// Optional: HTTP status code generated by the origin server
+	status int
+	// Optional: Human-readable explanation for this problem occurance.
+	// Should help client correct the problem. Clients should NOT parse this string.
+	detail string
+	// Optional: A (relative) URI identifying this specific problem occurence (it may or may not be dereferenced).
+	instance string
+}
+// NewRFC7807Problem ...
+func NewRFC7807Problem(typeURI string, status int, titleFormat string, a ...interface{}) error {
+	return &RFC7807Problem{
+		typeURI: typeURI,
+		status:  status,
+		title:   fmt.Sprintf(titleFormat, a...),
+	}
+}
+// Error returns the error information as a string.
+func (e *RFC7807Problem) Error() string {
+	return e.title
+}
+// TypeURI ...
+func (e *RFC7807Problem) TypeURI() string {
+	if e.typeURI == "" {
+		e.typeURI = "about:blank"
+	}
+	return e.typeURI
+}
+// Members ...
+func (e *RFC7807Problem) Members() (status int, title, detail, instance string) {
+	return e.status, e.title, e.detail, e.instance
+}*/

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zz_generated_service.go

@@ -0,0 +1,350 @@
+package azblob
+
+// Code generated by Microsoft (R) AutoRest Code Generator.
+// Changes may cause incorrect behavior and will be lost if the code is regenerated.
+
+import (
+	"bytes"
+	"context"
+	"encoding/xml"
+	"github.com/Azure/azure-pipeline-go/pipeline"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+	"strconv"
+)
+
+// serviceClient is the client for the Service methods of the Azblob service.
+type serviceClient struct {
+	managementClient
+}
+
+// newServiceClient creates an instance of the serviceClient client.
+func newServiceClient(url url.URL, p pipeline.Pipeline) serviceClient {
+	return serviceClient{newManagementClient(url, p)}
+}
+
+// GetProperties gets the properties of a storage account's Blob service, including properties for Storage Analytics
+// and CORS (Cross-Origin Resource Sharing) rules.
+//
+// timeout is the timeout parameter is expressed in seconds. For more information, see <a
+// href="https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/setting-timeouts-for-blob-service-operations">Setting
+// Timeouts for Blob Service Operations.</a> requestID is provides a client-generated, opaque value with a 1 KB
+// character limit that is recorded in the analytics logs when storage analytics logging is enabled.
+func (client serviceClient) GetProperties(ctx context.Context, timeout *int32, requestID *string) (*StorageServiceProperties, error) {
+	if err := validate([]validation{
+		{targetValue: timeout,
+			constraints: []constraint{{target: "timeout", name: null, rule: false,
+				chain: []constraint{{target: "timeout", name: inclusiveMinimum, rule: 0, chain: nil}}}}}}); err != nil {
+		return nil, err
+	}
+	req, err := client.getPropertiesPreparer(timeout, requestID)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := client.Pipeline().Do(ctx, responderPolicyFactory{responder: client.getPropertiesResponder}, req)
+	if err != nil {
+		return nil, err
+	}
+	return resp.(*StorageServiceProperties), err
+}
+
+// getPropertiesPreparer prepares the GetProperties request.
+func (client serviceClient) getPropertiesPreparer(timeout *int32, requestID *string) (pipeline.Request, error) {
+	req, err := pipeline.NewRequest("GET", client.url, nil)
+	if err != nil {
+		return req, pipeline.NewError(err, "failed to create request")
+	}
+	params := req.URL.Query()
+	if timeout != nil {
+		params.Set("timeout", strconv.FormatInt(int64(*timeout), 10))
+	}
+	params.Set("restype", "service")
+	params.Set("comp", "properties")
+	req.URL.RawQuery = params.Encode()
+	req.Header.Set("x-ms-version", ServiceVersion)
+	if requestID != nil {
+		req.Header.Set("x-ms-client-request-id", *requestID)
+	}
+	return req, nil
+}
+
+// getPropertiesResponder handles the response to the GetProperties request.
+func (client serviceClient) getPropertiesResponder(resp pipeline.Response) (pipeline.Response, error) {
+	err := validateResponse(resp, http.StatusOK)
+	if resp == nil {
+		return nil, err
+	}
+	result := &StorageServiceProperties{rawResponse: resp.Response()}
+	if err != nil {
+		return result, err
+	}
+	defer resp.Response().Body.Close()
+	b, err := ioutil.ReadAll(resp.Response().Body)
+	if err != nil {
+		return result, NewResponseError(err, resp.Response(), "failed to read response body")
+	}
+	if len(b) > 0 {
+		b = removeBOM(b)
+		err = xml.Unmarshal(b, result)
+		if err != nil {
+			return result, NewResponseError(err, resp.Response(), "failed to unmarshal response body")
+		}
+	}
+	return result, nil
+}
+
+// GetStatistics retrieves statistics related to replication for the Blob service. It is only available on the
+// secondary location endpoint when read-access geo-redundant replication is enabled for the storage account.
+//
+// timeout is the timeout parameter is expressed in seconds. For more information, see <a
+// href="https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/setting-timeouts-for-blob-service-operations">Setting
+// Timeouts for Blob Service Operations.</a> requestID is provides a client-generated, opaque value with a 1 KB
+// character limit that is recorded in the analytics logs when storage analytics logging is enabled.
+func (client serviceClient) GetStatistics(ctx context.Context, timeout *int32, requestID *string) (*StorageServiceStats, error) {
+	if err := validate([]validation{
+		{targetValue: timeout,
+			constraints: []constraint{{target: "timeout", name: null, rule: false,
+				chain: []constraint{{target: "timeout", name: inclusiveMinimum, rule: 0, chain: nil}}}}}}); err != nil {
+		return nil, err
+	}
+	req, err := client.getStatisticsPreparer(timeout, requestID)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := client.Pipeline().Do(ctx, responderPolicyFactory{responder: client.getStatisticsResponder}, req)
+	if err != nil {
+		return nil, err
+	}
+	return resp.(*StorageServiceStats), err
+}
+
+// getStatisticsPreparer prepares the GetStatistics request.
+func (client serviceClient) getStatisticsPreparer(timeout *int32, requestID *string) (pipeline.Request, error) {
+	req, err := pipeline.NewRequest("GET", client.url, nil)
+	if err != nil {
+		return req, pipeline.NewError(err, "failed to create request")
+	}
+	params := req.URL.Query()
+	if timeout != nil {
+		params.Set("timeout", strconv.FormatInt(int64(*timeout), 10))
+	}
+	params.Set("restype", "service")
+	params.Set("comp", "stats")
+	req.URL.RawQuery = params.Encode()
+	req.Header.Set("x-ms-version", ServiceVersion)
+	if requestID != nil {
+		req.Header.Set("x-ms-client-request-id", *requestID)
+	}
+	return req, nil
+}
+
+// getStatisticsResponder handles the response to the GetStatistics request.
+func (client serviceClient) getStatisticsResponder(resp pipeline.Response) (pipeline.Response, error) {
+	err := validateResponse(resp, http.StatusOK)
+	if resp == nil {
+		return nil, err
+	}
+	result := &StorageServiceStats{rawResponse: resp.Response()}
+	if err != nil {
+		return result, err
+	}
+	defer resp.Response().Body.Close()
+	b, err := ioutil.ReadAll(resp.Response().Body)
+	if err != nil {
+		return result, NewResponseError(err, resp.Response(), "failed to read response body")
+	}
+	if len(b) > 0 {
+		b = removeBOM(b)
+		err = xml.Unmarshal(b, result)
+		if err != nil {
+			return result, NewResponseError(err, resp.Response(), "failed to unmarshal response body")
+		}
+	}
+	return result, nil
+}
+
+// ListContainersSegment the List Containers Segment operation returns a list of the containers under the specified
+// account
+//
+// prefix is filters the results to return only containers whose name begins with the specified prefix. marker is a
+// string value that identifies the portion of the list of containers to be returned with the next listing operation.
+// The operation returns the NextMarker value within the response body if the listing operation did not return all
+// containers remaining to be listed with the current page. The NextMarker value can be used as the value for the
+// marker parameter in a subsequent call to request the next page of list items. The marker value is opaque to the
+// client. maxresults is specifies the maximum number of containers to return. If the request does not specify
+// maxresults, or specifies a value greater than 5000, the server will return up to 5000 items. Note that if the
+// listing operation crosses a partition boundary, then the service will return a continuation token for retrieving the
+// remainder of the results. For this reason, it is possible that the service will return fewer results than specified
+// by maxresults, or than the default of 5000. include is include this parameter to specify that the container's
+// metadata be returned as part of the response body. timeout is the timeout parameter is expressed in seconds. For
+// more information, see <a
+// href="https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/setting-timeouts-for-blob-service-operations">Setting
+// Timeouts for Blob Service Operations.</a> requestID is provides a client-generated, opaque value with a 1 KB
+// character limit that is recorded in the analytics logs when storage analytics logging is enabled.
+func (client serviceClient) ListContainersSegment(ctx context.Context, prefix *string, marker *string, maxresults *int32, include ListContainersIncludeType, timeout *int32, requestID *string) (*ListContainersResponse, error) {
+	if err := validate([]validation{
+		{targetValue: maxresults,
+			constraints: []constraint{{target: "maxresults", name: null, rule: false,
+				chain: []constraint{{target: "maxresults", name: inclusiveMinimum, rule: 1, chain: nil}}}}},
+		{targetValue: timeout,
+			constraints: []constraint{{target: "timeout", name: null, rule: false,
+				chain: []constraint{{target: "timeout", name: inclusiveMinimum, rule: 0, chain: nil}}}}}}); err != nil {
+		return nil, err
+	}
+	req, err := client.listContainersSegmentPreparer(prefix, marker, maxresults, include, timeout, requestID)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := client.Pipeline().Do(ctx, responderPolicyFactory{responder: client.listContainersSegmentResponder}, req)
+	if err != nil {
+		return nil, err
+	}
+	return resp.(*ListContainersResponse), err
+}
+
+// listContainersSegmentPreparer prepares the ListContainersSegment request.
+func (client serviceClient) listContainersSegmentPreparer(prefix *string, marker *string, maxresults *int32, include ListContainersIncludeType, timeout *int32, requestID *string) (pipeline.Request, error) {
+	req, err := pipeline.NewRequest("GET", client.url, nil)
+	if err != nil {
+		return req, pipeline.NewError(err, "failed to create request")
+	}
+	params := req.URL.Query()
+	if prefix != nil && len(*prefix) > 0 {
+		params.Set("prefix", *prefix)
+	}
+	if marker != nil && len(*marker) > 0 {
+		params.Set("marker", *marker)
+	}
+	if maxresults != nil {
+		params.Set("maxresults", strconv.FormatInt(int64(*maxresults), 10))
+	}
+	if include != ListContainersIncludeNone {
+		params.Set("include", string(include))
+	}
+	if timeout != nil {
+		params.Set("timeout", strconv.FormatInt(int64(*timeout), 10))
+	}
+	params.Set("comp", "list")
+	req.URL.RawQuery = params.Encode()
+	req.Header.Set("x-ms-version", ServiceVersion)
+	if requestID != nil {
+		req.Header.Set("x-ms-client-request-id", *requestID)
+	}
+	return req, nil
+}
+
+// listContainersSegmentResponder handles the response to the ListContainersSegment request.
+func (client serviceClient) listContainersSegmentResponder(resp pipeline.Response) (pipeline.Response, error) {
+	err := validateResponse(resp, http.StatusOK)
+	if resp == nil {
+		return nil, err
+	}
+	result := &ListContainersResponse{rawResponse: resp.Response()}
+	if err != nil {
+		return result, err
+	}
+	defer resp.Response().Body.Close()
+	b, err := ioutil.ReadAll(resp.Response().Body)
+	if err != nil {
+		return result, NewResponseError(err, resp.Response(), "failed to read response body")
+	}
+	if len(b) > 0 {
+		b = removeBOM(b)
+		err = xml.Unmarshal(b, result)
+		if err != nil {
+			return result, NewResponseError(err, resp.Response(), "failed to unmarshal response body")
+		}
+	}
+	return result, nil
+}
+
+// SetProperties sets properties for a storage account's Blob service endpoint, including properties for Storage
+// Analytics and CORS (Cross-Origin Resource Sharing) rules
+//
+// storageServiceProperties is the StorageService properties. timeout is the timeout parameter is expressed in seconds.
+// For more information, see <a
+// href="https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/setting-timeouts-for-blob-service-operations">Setting
+// Timeouts for Blob Service Operations.</a> requestID is provides a client-generated, opaque value with a 1 KB
+// character limit that is recorded in the analytics logs when storage analytics logging is enabled.
+func (client serviceClient) SetProperties(ctx context.Context, storageServiceProperties StorageServiceProperties, timeout *int32, requestID *string) (*ServiceSetPropertiesResponse, error) {
+	if err := validate([]validation{
+		{targetValue: storageServiceProperties,
+			constraints: []constraint{{target: "storageServiceProperties.Logging", name: null, rule: false,
+				chain: []constraint{{target: "storageServiceProperties.Logging.RetentionPolicy", name: null, rule: true,
+					chain: []constraint{{target: "storageServiceProperties.Logging.RetentionPolicy.Days", name: null, rule: false,
+						chain: []constraint{{target: "storageServiceProperties.Logging.RetentionPolicy.Days", name: inclusiveMinimum, rule: 1, chain: nil}}},
+					}},
+				}},
+				{target: "storageServiceProperties.HourMetrics", name: null, rule: false,
+					chain: []constraint{{target: "storageServiceProperties.HourMetrics.RetentionPolicy", name: null, rule: false,
+						chain: []constraint{{target: "storageServiceProperties.HourMetrics.RetentionPolicy.Days", name: null, rule: false,
+							chain: []constraint{{target: "storageServiceProperties.HourMetrics.RetentionPolicy.Days", name: inclusiveMinimum, rule: 1, chain: nil}}},
+						}},
+					}},
+				{target: "storageServiceProperties.MinuteMetrics", name: null, rule: false,
+					chain: []constraint{{target: "storageServiceProperties.MinuteMetrics.RetentionPolicy", name: null, rule: false,
+						chain: []constraint{{target: "storageServiceProperties.MinuteMetrics.RetentionPolicy.Days", name: null, rule: false,
+							chain: []constraint{{target: "storageServiceProperties.MinuteMetrics.RetentionPolicy.Days", name: inclusiveMinimum, rule: 1, chain: nil}}},
+						}},
+					}},
+				{target: "storageServiceProperties.DeleteRetentionPolicy", name: null, rule: false,
+					chain: []constraint{{target: "storageServiceProperties.DeleteRetentionPolicy.Days", name: null, rule: false,
+						chain: []constraint{{target: "storageServiceProperties.DeleteRetentionPolicy.Days", name: inclusiveMinimum, rule: 1, chain: nil}}},
+					}}}},
+		{targetValue: timeout,
+			constraints: []constraint{{target: "timeout", name: null, rule: false,
+				chain: []constraint{{target: "timeout", name: inclusiveMinimum, rule: 0, chain: nil}}}}}}); err != nil {
+		return nil, err
+	}
+	req, err := client.setPropertiesPreparer(storageServiceProperties, timeout, requestID)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := client.Pipeline().Do(ctx, responderPolicyFactory{responder: client.setPropertiesResponder}, req)
+	if err != nil {
+		return nil, err
+	}
+	return resp.(*ServiceSetPropertiesResponse), err
+}
+
+// setPropertiesPreparer prepares the SetProperties request.
+func (client serviceClient) setPropertiesPreparer(storageServiceProperties StorageServiceProperties, timeout *int32, requestID *string) (pipeline.Request, error) {
+	req, err := pipeline.NewRequest("PUT", client.url, nil)
+	if err != nil {
+		return req, pipeline.NewError(err, "failed to create request")
+	}
+	params := req.URL.Query()
+	if timeout != nil {
+		params.Set("timeout", strconv.FormatInt(int64(*timeout), 10))
+	}
+	params.Set("restype", "service")
+	params.Set("comp", "properties")
+	req.URL.RawQuery = params.Encode()
+	req.Header.Set("x-ms-version", ServiceVersion)
+	if requestID != nil {
+		req.Header.Set("x-ms-client-request-id", *requestID)
+	}
+	b, err := xml.Marshal(storageServiceProperties)
+	if err != nil {
+		return req, pipeline.NewError(err, "failed to marshal request body")
+	}
+	req.Header.Set("Content-Type", "application/xml")
+	err = req.SetBody(bytes.NewReader(b))
+	if err != nil {
+		return req, pipeline.NewError(err, "failed to set request body")
+	}
+	return req, nil
+}
+
+// setPropertiesResponder handles the response to the SetProperties request.
+func (client serviceClient) setPropertiesResponder(resp pipeline.Response) (pipeline.Response, error) {
+	err := validateResponse(resp, http.StatusOK, http.StatusAccepted)
+	if resp == nil {
+		return nil, err
+	}
+	io.Copy(ioutil.Discard, resp.Response().Body)
+	resp.Response().Body.Close()
+	return &ServiceSetPropertiesResponse{rawResponse: resp.Response()}, err
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zz_generated_validation.go

@@ -0,0 +1,367 @@
+package azblob
+
+// Code generated by Microsoft (R) AutoRest Code Generator.
+// Changes may cause incorrect behavior and will be lost if the code is regenerated.
+
+import (
+	"fmt"
+	"github.com/Azure/azure-pipeline-go/pipeline"
+	"reflect"
+	"regexp"
+	"strings"
+)
+
+// Constraint stores constraint name, target field name
+// Rule and chain validations.
+type constraint struct {
+	// Target field name for validation.
+	target string
+
+	// Constraint name e.g. minLength, MaxLength, Pattern, etc.
+	name string
+
+	// Rule for constraint e.g. greater than 10, less than 5 etc.
+	rule interface{}
+
+	// Chain validations for struct type
+	chain []constraint
+}
+
+// Validation stores parameter-wise validation.
+type validation struct {
+	targetValue interface{}
+	constraints []constraint
+}
+
+// Constraint list
+const (
+	empty            = "Empty"
+	null             = "Null"
+	readOnly         = "ReadOnly"
+	pattern          = "Pattern"
+	maxLength        = "MaxLength"
+	minLength        = "MinLength"
+	maxItems         = "MaxItems"
+	minItems         = "MinItems"
+	multipleOf       = "MultipleOf"
+	uniqueItems      = "UniqueItems"
+	inclusiveMaximum = "InclusiveMaximum"
+	exclusiveMaximum = "ExclusiveMaximum"
+	exclusiveMinimum = "ExclusiveMinimum"
+	inclusiveMinimum = "InclusiveMinimum"
+)
+
+// Validate method validates constraints on parameter
+// passed in validation array.
+func validate(m []validation) error {
+	for _, item := range m {
+		v := reflect.ValueOf(item.targetValue)
+		for _, constraint := range item.constraints {
+			var err error
+			switch v.Kind() {
+			case reflect.Ptr:
+				err = validatePtr(v, constraint)
+			case reflect.String:
+				err = validateString(v, constraint)
+			case reflect.Struct:
+				err = validateStruct(v, constraint)
+			case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+				err = validateInt(v, constraint)
+			case reflect.Float32, reflect.Float64:
+				err = validateFloat(v, constraint)
+			case reflect.Array, reflect.Slice, reflect.Map:
+				err = validateArrayMap(v, constraint)
+			default:
+				err = createError(v, constraint, fmt.Sprintf("unknown type %v", v.Kind()))
+			}
+			if err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+func validateStruct(x reflect.Value, v constraint, name ...string) error {
+	//Get field name from target name which is in format a.b.c
+	s := strings.Split(v.target, ".")
+	f := x.FieldByName(s[len(s)-1])
+	if isZero(f) {
+		return createError(x, v, fmt.Sprintf("field %q doesn't exist", v.target))
+	}
+	err := validate([]validation{
+		{
+			targetValue: getInterfaceValue(f),
+			constraints: []constraint{v},
+		},
+	})
+	return err
+}
+
+func validatePtr(x reflect.Value, v constraint) error {
+	if v.name == readOnly {
+		if !x.IsNil() {
+			return createError(x.Elem(), v, "readonly parameter; must send as nil or empty in request")
+		}
+		return nil
+	}
+	if x.IsNil() {
+		return checkNil(x, v)
+	}
+	if v.chain != nil {
+		return validate([]validation{
+			{
+				targetValue: getInterfaceValue(x.Elem()),
+				constraints: v.chain,
+			},
+		})
+	}
+	return nil
+}
+
+func validateInt(x reflect.Value, v constraint) error {
+	i := x.Int()
+	r, ok := v.rule.(int)
+	if !ok {
+		return createError(x, v, fmt.Sprintf("rule must be integer value for %v constraint; got: %v", v.name, v.rule))
+	}
+	switch v.name {
+	case multipleOf:
+		if i%int64(r) != 0 {
+			return createError(x, v, fmt.Sprintf("value must be a multiple of %v", r))
+		}
+	case exclusiveMinimum:
+		if i <= int64(r) {
+			return createError(x, v, fmt.Sprintf("value must be greater than %v", r))
+		}
+	case exclusiveMaximum:
+		if i >= int64(r) {
+			return createError(x, v, fmt.Sprintf("value must be less than %v", r))
+		}
+	case inclusiveMinimum:
+		if i < int64(r) {
+			return createError(x, v, fmt.Sprintf("value must be greater than or equal to %v", r))
+		}
+	case inclusiveMaximum:
+		if i > int64(r) {
+			return createError(x, v, fmt.Sprintf("value must be less than or equal to %v", r))
+		}
+	default:
+		return createError(x, v, fmt.Sprintf("constraint %v is not applicable for type integer", v.name))
+	}
+	return nil
+}
+
+func validateFloat(x reflect.Value, v constraint) error {
+	f := x.Float()
+	r, ok := v.rule.(float64)
+	if !ok {
+		return createError(x, v, fmt.Sprintf("rule must be float value for %v constraint; got: %v", v.name, v.rule))
+	}
+	switch v.name {
+	case exclusiveMinimum:
+		if f <= r {
+			return createError(x, v, fmt.Sprintf("value must be greater than %v", r))
+		}
+	case exclusiveMaximum:
+		if f >= r {
+			return createError(x, v, fmt.Sprintf("value must be less than %v", r))
+		}
+	case inclusiveMinimum:
+		if f < r {
+			return createError(x, v, fmt.Sprintf("value must be greater than or equal to %v", r))
+		}
+	case inclusiveMaximum:
+		if f > r {
+			return createError(x, v, fmt.Sprintf("value must be less than or equal to %v", r))
+		}
+	default:
+		return createError(x, v, fmt.Sprintf("constraint %s is not applicable for type float", v.name))
+	}
+	return nil
+}
+
+func validateString(x reflect.Value, v constraint) error {
+	s := x.String()
+	switch v.name {
+	case empty:
+		if len(s) == 0 {
+			return checkEmpty(x, v)
+		}
+	case pattern:
+		reg, err := regexp.Compile(v.rule.(string))
+		if err != nil {
+			return createError(x, v, err.Error())
+		}
+		if !reg.MatchString(s) {
+			return createError(x, v, fmt.Sprintf("value doesn't match pattern %v", v.rule))
+		}
+	case maxLength:
+		if _, ok := v.rule.(int); !ok {
+			return createError(x, v, fmt.Sprintf("rule must be integer value for %v constraint; got: %v", v.name, v.rule))
+		}
+		if len(s) > v.rule.(int) {
+			return createError(x, v, fmt.Sprintf("value length must be less than %v", v.rule))
+		}
+	case minLength:
+		if _, ok := v.rule.(int); !ok {
+			return createError(x, v, fmt.Sprintf("rule must be integer value for %v constraint; got: %v", v.name, v.rule))
+		}
+		if len(s) < v.rule.(int) {
+			return createError(x, v, fmt.Sprintf("value length must be greater than %v", v.rule))
+		}
+	case readOnly:
+		if len(s) > 0 {
+			return createError(reflect.ValueOf(s), v, "readonly parameter; must send as nil or empty in request")
+		}
+	default:
+		return createError(x, v, fmt.Sprintf("constraint %s is not applicable to string type", v.name))
+	}
+	if v.chain != nil {
+		return validate([]validation{
+			{
+				targetValue: getInterfaceValue(x),
+				constraints: v.chain,
+			},
+		})
+	}
+	return nil
+}
+
+func validateArrayMap(x reflect.Value, v constraint) error {
+	switch v.name {
+	case null:
+		if x.IsNil() {
+			return checkNil(x, v)
+		}
+	case empty:
+		if x.IsNil() || x.Len() == 0 {
+			return checkEmpty(x, v)
+		}
+	case maxItems:
+		if _, ok := v.rule.(int); !ok {
+			return createError(x, v, fmt.Sprintf("rule must be integer for %v constraint; got: %v", v.name, v.rule))
+		}
+		if x.Len() > v.rule.(int) {
+			return createError(x, v, fmt.Sprintf("maximum item limit is %v; got: %v", v.rule, x.Len()))
+		}
+	case minItems:
+		if _, ok := v.rule.(int); !ok {
+			return createError(x, v, fmt.Sprintf("rule must be integer for %v constraint; got: %v", v.name, v.rule))
+		}
+		if x.Len() < v.rule.(int) {
+			return createError(x, v, fmt.Sprintf("minimum item limit is %v; got: %v", v.rule, x.Len()))
+		}
+	case uniqueItems:
+		if x.Kind() == reflect.Array || x.Kind() == reflect.Slice {
+			if !checkForUniqueInArray(x) {
+				return createError(x, v, fmt.Sprintf("all items in parameter %q must be unique; got:%v", v.target, x))
+			}
+		} else if x.Kind() == reflect.Map {
+			if !checkForUniqueInMap(x) {
+				return createError(x, v, fmt.Sprintf("all items in parameter %q must be unique; got:%v", v.target, x))
+			}
+		} else {
+			return createError(x, v, fmt.Sprintf("type must be array, slice or map for constraint %v; got: %v", v.name, x.Kind()))
+		}
+	case readOnly:
+		if x.Len() != 0 {
+			return createError(x, v, "readonly parameter; must send as nil or empty in request")
+		}
+	case pattern:
+		reg, err := regexp.Compile(v.rule.(string))
+		if err != nil {
+			return createError(x, v, err.Error())
+		}
+		keys := x.MapKeys()
+		for _, k := range keys {
+			if !reg.MatchString(k.String()) {
+				return createError(k, v, fmt.Sprintf("map key doesn't match pattern %v", v.rule))
+			}
+		}
+	default:
+		return createError(x, v, fmt.Sprintf("constraint %v is not applicable to array, slice and map type", v.name))
+	}
+	if v.chain != nil {
+		return validate([]validation{
+			{
+				targetValue: getInterfaceValue(x),
+				constraints: v.chain,
+			},
+		})
+	}
+	return nil
+}
+
+func checkNil(x reflect.Value, v constraint) error {
+	if _, ok := v.rule.(bool); !ok {
+		return createError(x, v, fmt.Sprintf("rule must be bool value for %v constraint; got: %v", v.name, v.rule))
+	}
+	if v.rule.(bool) {
+		return createError(x, v, "value can not be null; required parameter")
+	}
+	return nil
+}
+
+func checkEmpty(x reflect.Value, v constraint) error {
+	if _, ok := v.rule.(bool); !ok {
+		return createError(x, v, fmt.Sprintf("rule must be bool value for %v constraint; got: %v", v.name, v.rule))
+	}
+	if v.rule.(bool) {
+		return createError(x, v, "value can not be null or empty; required parameter")
+	}
+	return nil
+}
+
+func checkForUniqueInArray(x reflect.Value) bool {
+	if x == reflect.Zero(reflect.TypeOf(x)) || x.Len() == 0 {
+		return false
+	}
+	arrOfInterface := make([]interface{}, x.Len())
+	for i := 0; i < x.Len(); i++ {
+		arrOfInterface[i] = x.Index(i).Interface()
+	}
+	m := make(map[interface{}]bool)
+	for _, val := range arrOfInterface {
+		if m[val] {
+			return false
+		}
+		m[val] = true
+	}
+	return true
+}
+
+func checkForUniqueInMap(x reflect.Value) bool {
+	if x == reflect.Zero(reflect.TypeOf(x)) || x.Len() == 0 {
+		return false
+	}
+	mapOfInterface := make(map[interface{}]interface{}, x.Len())
+	keys := x.MapKeys()
+	for _, k := range keys {
+		mapOfInterface[k.Interface()] = x.MapIndex(k).Interface()
+	}
+	m := make(map[interface{}]bool)
+	for _, val := range mapOfInterface {
+		if m[val] {
+			return false
+		}
+		m[val] = true
+	}
+	return true
+}
+
+func getInterfaceValue(x reflect.Value) interface{} {
+	if x.Kind() == reflect.Invalid {
+		return nil
+	}
+	return x.Interface()
+}
+
+func isZero(x interface{}) bool {
+	return x == reflect.Zero(reflect.TypeOf(x)).Interface()
+}
+
+func createError(x reflect.Value, v constraint, message string) error {
+	return pipeline.NewError(nil, fmt.Sprintf("validation failed: parameter=%s constraint=%s value=%#v details: %s",
+		v.target, v.name, getInterfaceValue(x), message))
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zz_generated_version.go

@@ -0,0 +1,14 @@
+package azblob
+
+// Code generated by Microsoft (R) AutoRest Code Generator.
+// Changes may cause incorrect behavior and will be lost if the code is regenerated.
+
+// UserAgent returns the UserAgent string to use when sending http.Requests.
+func UserAgent() string {
+	return "Azure-SDK-For-Go/0.0.0 azblob/2018-03-28"
+}
+
+// Version returns the semantic version (see http://semver.org) of the client.
+func Version() string {
+	return "0.0.0"
+}

vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zz_response_helpers.go

@@ -0,0 +1,242 @@
+package azblob
+
+import (
+	"context"
+	"io"
+	"net/http"
+	"time"
+)
+
+// BlobHTTPHeaders contains read/writeable blob properties.
+type BlobHTTPHeaders struct {
+	ContentType        string
+	ContentMD5         []byte
+	ContentEncoding    string
+	ContentLanguage    string
+	ContentDisposition string
+	CacheControl       string
+}
+
+// NewHTTPHeaders returns the user-modifiable properties for this blob.
+func (bgpr BlobGetPropertiesResponse) NewHTTPHeaders() BlobHTTPHeaders {
+	return BlobHTTPHeaders{
+		ContentType:        bgpr.ContentType(),
+		ContentEncoding:    bgpr.ContentEncoding(),
+		ContentLanguage:    bgpr.ContentLanguage(),
+		ContentDisposition: bgpr.ContentDisposition(),
+		CacheControl:       bgpr.CacheControl(),
+		ContentMD5:         bgpr.ContentMD5(),
+	}
+}
+
+///////////////////////////////////////////////////////////////////////////////
+
+// NewHTTPHeaders returns the user-modifiable properties for this blob.
+func (dr downloadResponse) NewHTTPHeaders() BlobHTTPHeaders {
+	return BlobHTTPHeaders{
+		ContentType:        dr.ContentType(),
+		ContentEncoding:    dr.ContentEncoding(),
+		ContentLanguage:    dr.ContentLanguage(),
+		ContentDisposition: dr.ContentDisposition(),
+		CacheControl:       dr.CacheControl(),
+		ContentMD5:         dr.ContentMD5(),
+	}
+}
+
+///////////////////////////////////////////////////////////////////////////////
+
+// DownloadResponse wraps AutoRest generated downloadResponse and helps to provide info for retry.
+type DownloadResponse struct {
+	r       *downloadResponse
+	ctx     context.Context
+	b       BlobURL
+	getInfo HTTPGetterInfo
+}
+
+// Body constructs new RetryReader stream for reading data. If a connection failes
+// while reading, it will make additional requests to reestablish a connection and
+// continue reading. Specifying a RetryReaderOption's with MaxRetryRequests set to 0
+// (the default), returns the original response body and no retries will be performed.
+func (r *DownloadResponse) Body(o RetryReaderOptions) io.ReadCloser {
+	if o.MaxRetryRequests == 0 { // No additional retries
+		return r.Response().Body
+	}
+	return NewRetryReader(r.ctx, r.Response(), r.getInfo, o,
+		func(ctx context.Context, getInfo HTTPGetterInfo) (*http.Response, error) {
+			resp, err := r.b.Download(ctx, getInfo.Offset, getInfo.Count,
+				BlobAccessConditions{
+					HTTPAccessConditions: HTTPAccessConditions{IfMatch: getInfo.ETag},
+				},
+				false)
+			if err != nil {
+				return nil, err
+			}
+			return resp.Response(), err
+		},
+	)
+}
+
+// Response returns the raw HTTP response object.
+func (r DownloadResponse) Response() *http.Response {
+	return r.r.Response()
+}
+
+// NewHTTPHeaders returns the user-modifiable properties for this blob.
+func (r DownloadResponse) NewHTTPHeaders() BlobHTTPHeaders {
+	return r.r.NewHTTPHeaders()
+}
+
+// BlobContentMD5 returns the value for header x-ms-blob-content-md5.
+func (r DownloadResponse) BlobContentMD5() []byte {
+	return r.r.BlobContentMD5()
+}
+
+// ContentMD5 returns the value for header Content-MD5.
+func (r DownloadResponse) ContentMD5() []byte {
+	return r.r.ContentMD5()
+}
+
+// StatusCode returns the HTTP status code of the response, e.g. 200.
+func (r DownloadResponse) StatusCode() int {
+	return r.r.StatusCode()
+}
+
+// Status returns the HTTP status message of the response, e.g. "200 OK".
+func (r DownloadResponse) Status() string {
+	return r.r.Status()
+}
+
+// AcceptRanges returns the value for header Accept-Ranges.
+func (r DownloadResponse) AcceptRanges() string {
+	return r.r.AcceptRanges()
+}
+
+// BlobCommittedBlockCount returns the value for header x-ms-blob-committed-block-count.
+func (r DownloadResponse) BlobCommittedBlockCount() int32 {
+	return r.r.BlobCommittedBlockCount()
+}
+
+// BlobSequenceNumber returns the value for header x-ms-blob-sequence-number.
+func (r DownloadResponse) BlobSequenceNumber() int64 {
+	return r.r.BlobSequenceNumber()
+}
+
+// BlobType returns the value for header x-ms-blob-type.
+func (r DownloadResponse) BlobType() BlobType {
+	return r.r.BlobType()
+}
+
+// CacheControl returns the value for header Cache-Control.
+func (r DownloadResponse) CacheControl() string {
+	return r.r.CacheControl()
+}
+
+// ContentDisposition returns the value for header Content-Disposition.
+func (r DownloadResponse) ContentDisposition() string {
+	return r.r.ContentDisposition()
+}
+
+// ContentEncoding returns the value for header Content-Encoding.
+func (r DownloadResponse) ContentEncoding() string {
+	return r.r.ContentEncoding()
+}
+
+// ContentLanguage returns the value for header Content-Language.
+func (r DownloadResponse) ContentLanguage() string {
+	return r.r.ContentLanguage()
+}
+
+// ContentLength returns the value for header Content-Length.
+func (r DownloadResponse) ContentLength() int64 {
+	return r.r.ContentLength()
+}
+
+// ContentRange returns the value for header Content-Range.
+func (r DownloadResponse) ContentRange() string {
+	return r.r.ContentRange()
+}
+
+// ContentType returns the value for header Content-Type.
+func (r DownloadResponse) ContentType() string {
+	return r.r.ContentType()
+}
+
+// CopyCompletionTime returns the value for header x-ms-copy-completion-time.
+func (r DownloadResponse) CopyCompletionTime() time.Time {
+	return r.r.CopyCompletionTime()
+}
+
+// CopyID returns the value for header x-ms-copy-id.
+func (r DownloadResponse) CopyID() string {
+	return r.r.CopyID()
+}
+
+// CopyProgress returns the value for header x-ms-copy-progress.
+func (r DownloadResponse) CopyProgress() string {
+	return r.r.CopyProgress()
+}
+
+// CopySource returns the value for header x-ms-copy-source.
+func (r DownloadResponse) CopySource() string {
+	return r.r.CopySource()
+}
+
+// CopyStatus returns the value for header x-ms-copy-status.
+func (r DownloadResponse) CopyStatus() CopyStatusType {
+	return r.r.CopyStatus()
+}
+
+// CopyStatusDescription returns the value for header x-ms-copy-status-description.
+func (r DownloadResponse) CopyStatusDescription() string {
+	return r.r.CopyStatusDescription()
+}
+
+// Date returns the value for header Date.
+func (r DownloadResponse) Date() time.Time {
+	return r.r.Date()
+}
+
+// ETag returns the value for header ETag.
+func (r DownloadResponse) ETag() ETag {
+	return r.r.ETag()
+}
+
+// IsServerEncrypted returns the value for header x-ms-server-encrypted.
+func (r DownloadResponse) IsServerEncrypted() string {
+	return r.r.IsServerEncrypted()
+}
+
+// LastModified returns the value for header Last-Modified.
+func (r DownloadResponse) LastModified() time.Time {
+	return r.r.LastModified()
+}
+
+// LeaseDuration returns the value for header x-ms-lease-duration.
+func (r DownloadResponse) LeaseDuration() LeaseDurationType {
+	return r.r.LeaseDuration()
+}
+
+// LeaseState returns the value for header x-ms-lease-state.
+func (r DownloadResponse) LeaseState() LeaseStateType {
+	return r.r.LeaseState()
+}
+
+// LeaseStatus returns the value for header x-ms-lease-status.
+func (r DownloadResponse) LeaseStatus() LeaseStatusType {
+	return r.r.LeaseStatus()
+}
+
+// RequestID returns the value for header x-ms-request-id.
+func (r DownloadResponse) RequestID() string {
+	return r.r.RequestID()
+}
+
+// Version returns the value for header x-ms-version.
+func (r DownloadResponse) Version() string {
+	return r.r.Version()
+}
+
+// NewMetadata returns user-defined key/value pairs.
+func (r DownloadResponse) NewMetadata() Metadata {
+	return r.r.NewMetadata()
+}

vendor/github.com/Azure/azure-storage-blob-go/LICENSE

@@ -0,0 +1,21 @@
+    MIT License
+
+    Copyright (c) Microsoft Corporation. All rights reserved.
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in all
+    copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+    SOFTWARE

vendor/github.com/Azure/azure-storage-go/README.md

@@ -1,10 +0,0 @@
-# Azure Storage SDK for Go
-[![GoDoc](https://godoc.org/github.com/Azure/azure-storage-go?status.svg)](https://godoc.org/github.com/Azure/azure-storage-go) [![Build Status](https://travis-ci.org/Azure/azure-storage-go.svg?branch=master)](https://travis-ci.org/Azure/azure-storage-go) [![Go Report Card](https://goreportcard.com/badge/github.com/Azure/azure-storage-go)](https://goreportcard.com/report/github.com/Azure/azure-storage-go)
-
-The `github.com/Azure/azure-sdk-for-go/storage` package is used to perform operations in Azure Storage Service. To manage your storage accounts (Azure Resource Manager / ARM), use the [github.com/Azure/azure-sdk-for-go/arm/storage](../arm/storage) package. For your classic storage accounts (Azure Service Management / ASM), use [github.com/Azure/azure-sdk-for-go/management/storageservice](../management/storageservice) package.
-
-This package includes support for [Azure Storage Emulator](https://azure.microsoft.com/documentation/articles/storage-use-emulator/)
-
-# Contributing
-
-This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/). For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any additional questions or comments.

vendor/github.com/Azure/azure-storage-go/authorization.go

@@ -1,223 +0,0 @@
-// Package storage provides clients for Microsoft Azure Storage Services.
-package storage
-
-import (
-	"bytes"
-	"fmt"
-	"net/url"
-	"sort"
-	"strings"
-)
-
-// See: https://docs.microsoft.com/rest/api/storageservices/fileservices/authentication-for-the-azure-storage-services
-
-type authentication string
-
-const (
-	sharedKey             authentication = "sharedKey"
-	sharedKeyForTable     authentication = "sharedKeyTable"
-	sharedKeyLite         authentication = "sharedKeyLite"
-	sharedKeyLiteForTable authentication = "sharedKeyLiteTable"
-
-	// headers
-	headerAuthorization     = "Authorization"
-	headerContentLength     = "Content-Length"
-	headerDate              = "Date"
-	headerXmsDate           = "x-ms-date"
-	headerXmsVersion        = "x-ms-version"
-	headerContentEncoding   = "Content-Encoding"
-	headerContentLanguage   = "Content-Language"
-	headerContentType       = "Content-Type"
-	headerContentMD5        = "Content-MD5"
-	headerIfModifiedSince   = "If-Modified-Since"
-	headerIfMatch           = "If-Match"
-	headerIfNoneMatch       = "If-None-Match"
-	headerIfUnmodifiedSince = "If-Unmodified-Since"
-	headerRange             = "Range"
-)
-
-func (c *Client) addAuthorizationHeader(verb, url string, headers map[string]string, auth authentication) (map[string]string, error) {
-	authHeader, err := c.getSharedKey(verb, url, headers, auth)
-	if err != nil {
-		return nil, err
-	}
-	headers[headerAuthorization] = authHeader
-	return headers, nil
-}
-
-func (c *Client) getSharedKey(verb, url string, headers map[string]string, auth authentication) (string, error) {
-	canRes, err := c.buildCanonicalizedResource(url, auth)
-	if err != nil {
-		return "", err
-	}
-
-	canString, err := buildCanonicalizedString(verb, headers, canRes, auth)
-	if err != nil {
-		return "", err
-	}
-	return c.createAuthorizationHeader(canString, auth), nil
-}
-
-func (c *Client) buildCanonicalizedResource(uri string, auth authentication) (string, error) {
-	errMsg := "buildCanonicalizedResource error: %s"
-	u, err := url.Parse(uri)
-	if err != nil {
-		return "", fmt.Errorf(errMsg, err.Error())
-	}
-
-	cr := bytes.NewBufferString("/")
-	cr.WriteString(c.getCanonicalizedAccountName())
-
-	if len(u.Path) > 0 {
-		// Any portion of the CanonicalizedResource string that is derived from
-		// the resource's URI should be encoded exactly as it is in the URI.
-		// -- https://msdn.microsoft.com/en-gb/library/azure/dd179428.aspx
-		cr.WriteString(u.EscapedPath())
-	}
-
-	params, err := url.ParseQuery(u.RawQuery)
-	if err != nil {
-		return "", fmt.Errorf(errMsg, err.Error())
-	}
-
-	// See https://github.com/Azure/azure-storage-net/blob/master/Lib/Common/Core/Util/AuthenticationUtility.cs#L277
-	if auth == sharedKey {
-		if len(params) > 0 {
-			cr.WriteString("\n")
-
-			keys := []string{}
-			for key := range params {
-				keys = append(keys, key)
-			}
-			sort.Strings(keys)
-
-			completeParams := []string{}
-			for _, key := range keys {
-				if len(params[key]) > 1 {
-					sort.Strings(params[key])
-				}
-
-				completeParams = append(completeParams, fmt.Sprintf("%s:%s", key, strings.Join(params[key], ",")))
-			}
-			cr.WriteString(strings.Join(completeParams, "\n"))
-		}
-	} else {
-		// search for "comp" parameter, if exists then add it to canonicalizedresource
-		if v, ok := params["comp"]; ok {
-			cr.WriteString("?comp=" + v[0])
-		}
-	}
-
-	return string(cr.Bytes()), nil
-}
-
-func (c *Client) getCanonicalizedAccountName() string {
-	// since we may be trying to access a secondary storage account, we need to
-	// remove the -secondary part of the storage name
-	return strings.TrimSuffix(c.accountName, "-secondary")
-}
-
-func buildCanonicalizedString(verb string, headers map[string]string, canonicalizedResource string, auth authentication) (string, error) {
-	contentLength := headers[headerContentLength]
-	if contentLength == "0" {
-		contentLength = ""
-	}
-	date := headers[headerDate]
-	if v, ok := headers[headerXmsDate]; ok {
-		if auth == sharedKey || auth == sharedKeyLite {
-			date = ""
-		} else {
-			date = v
-		}
-	}
-	var canString string
-	switch auth {
-	case sharedKey:
-		canString = strings.Join([]string{
-			verb,
-			headers[headerContentEncoding],
-			headers[headerContentLanguage],
-			contentLength,
-			headers[headerContentMD5],
-			headers[headerContentType],
-			date,
-			headers[headerIfModifiedSince],
-			headers[headerIfMatch],
-			headers[headerIfNoneMatch],
-			headers[headerIfUnmodifiedSince],
-			headers[headerRange],
-			buildCanonicalizedHeader(headers),
-			canonicalizedResource,
-		}, "\n")
-	case sharedKeyForTable:
-		canString = strings.Join([]string{
-			verb,
-			headers[headerContentMD5],
-			headers[headerContentType],
-			date,
-			canonicalizedResource,
-		}, "\n")
-	case sharedKeyLite:
-		canString = strings.Join([]string{
-			verb,
-			headers[headerContentMD5],
-			headers[headerContentType],
-			date,
-			buildCanonicalizedHeader(headers),
-			canonicalizedResource,
-		}, "\n")
-	case sharedKeyLiteForTable:
-		canString = strings.Join([]string{
-			date,
-			canonicalizedResource,
-		}, "\n")
-	default:
-		return "", fmt.Errorf("%s authentication is not supported yet", auth)
-	}
-	return canString, nil
-}
-
-func buildCanonicalizedHeader(headers map[string]string) string {
-	cm := make(map[string]string)
-
-	for k, v := range headers {
-		headerName := strings.TrimSpace(strings.ToLower(k))
-		if strings.HasPrefix(headerName, "x-ms-") {
-			cm[headerName] = v
-		}
-	}
-
-	if len(cm) == 0 {
-		return ""
-	}
-
-	keys := []string{}
-	for key := range cm {
-		keys = append(keys, key)
-	}
-
-	sort.Strings(keys)
-
-	ch := bytes.NewBufferString("")
-
-	for _, key := range keys {
-		ch.WriteString(key)
-		ch.WriteRune(':')
-		ch.WriteString(cm[key])
-		ch.WriteRune('\n')
-	}
-
-	return strings.TrimSuffix(string(ch.Bytes()), "\n")
-}
-
-func (c *Client) createAuthorizationHeader(canonicalizedString string, auth authentication) string {
-	signature := c.computeHmac256(canonicalizedString)
-	var key string
-	switch auth {
-	case sharedKey, sharedKeyForTable:
-		key = "SharedKey"
-	case sharedKeyLite, sharedKeyLiteForTable:
-		key = "SharedKeyLite"
-	}
-	return fmt.Sprintf("%s %s:%s", key, c.getCanonicalizedAccountName(), signature)
-}

vendor/github.com/Azure/azure-storage-go/blobserviceclient.go

@@ -1,92 +0,0 @@
-package storage
-
-import (
-	"fmt"
-	"net/http"
-	"net/url"
-)
-
-// BlobStorageClient contains operations for Microsoft Azure Blob Storage
-// Service.
-type BlobStorageClient struct {
-	client Client
-	auth   authentication
-}
-
-// GetServiceProperties gets the properties of your storage account's blob service.
-// See: https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/get-blob-service-properties
-func (b *BlobStorageClient) GetServiceProperties() (*ServiceProperties, error) {
-	return b.client.getServiceProperties(blobServiceName, b.auth)
-}
-
-// SetServiceProperties sets the properties of your storage account's blob service.
-// See: https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/set-blob-service-properties
-func (b *BlobStorageClient) SetServiceProperties(props ServiceProperties) error {
-	return b.client.setServiceProperties(props, blobServiceName, b.auth)
-}
-
-// ListContainersParameters defines the set of customizable parameters to make a
-// List Containers call.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dd179352.aspx
-type ListContainersParameters struct {
-	Prefix     string
-	Marker     string
-	Include    string
-	MaxResults uint
-	Timeout    uint
-}
-
-// GetContainerReference returns a Container object for the specified container name.
-func (b BlobStorageClient) GetContainerReference(name string) Container {
-	return Container{
-		bsc:  &b,
-		Name: name,
-	}
-}
-
-// ListContainers returns the list of containers in a storage account along with
-// pagination token and other response details.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dd179352.aspx
-func (b BlobStorageClient) ListContainers(params ListContainersParameters) (*ContainerListResponse, error) {
-	q := mergeParams(params.getParameters(), url.Values{"comp": {"list"}})
-	uri := b.client.getEndpoint(blobServiceName, "", q)
-	headers := b.client.getStandardHeaders()
-
-	var out ContainerListResponse
-	resp, err := b.client.exec(http.MethodGet, uri, headers, nil, b.auth)
-	if err != nil {
-		return nil, err
-	}
-	defer resp.body.Close()
-	err = xmlUnmarshal(resp.body, &out)
-
-	// assign our client to the newly created Container objects
-	for i := range out.Containers {
-		out.Containers[i].bsc = &b
-	}
-	return &out, err
-}
-
-func (p ListContainersParameters) getParameters() url.Values {
-	out := url.Values{}
-
-	if p.Prefix != "" {
-		out.Set("prefix", p.Prefix)
-	}
-	if p.Marker != "" {
-		out.Set("marker", p.Marker)
-	}
-	if p.Include != "" {
-		out.Set("include", p.Include)
-	}
-	if p.MaxResults != 0 {
-		out.Set("maxresults", fmt.Sprintf("%v", p.MaxResults))
-	}
-	if p.Timeout != 0 {
-		out.Set("timeout", fmt.Sprintf("%v", p.Timeout))
-	}
-
-	return out
-}

vendor/github.com/Azure/azure-storage-go/client.go

@@ -1,479 +0,0 @@
-// Package storage provides clients for Microsoft Azure Storage Services.
-package storage
-
-import (
-	"bytes"
-	"encoding/base64"
-	"encoding/json"
-	"encoding/xml"
-	"errors"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"net/http"
-	"net/url"
-	"runtime"
-	"strconv"
-	"strings"
-
-	"github.com/Azure/go-autorest/autorest/azure"
-)
-
-const (
-	// DefaultBaseURL is the domain name used for storage requests in the
-	// public cloud when a default client is created.
-	DefaultBaseURL = "core.windows.net"
-
-	// DefaultAPIVersion is the Azure Storage API version string used when a
-	// basic client is created.
-	DefaultAPIVersion = "2016-05-31"
-
-	defaultUseHTTPS = true
-
-	// StorageEmulatorAccountName is the fixed storage account used by Azure Storage Emulator
-	StorageEmulatorAccountName = "devstoreaccount1"
-
-	// StorageEmulatorAccountKey is the the fixed storage account used by Azure Storage Emulator
-	StorageEmulatorAccountKey = "Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw=="
-
-	blobServiceName  = "blob"
-	tableServiceName = "table"
-	queueServiceName = "queue"
-	fileServiceName  = "file"
-
-	storageEmulatorBlob  = "127.0.0.1:10000"
-	storageEmulatorTable = "127.0.0.1:10002"
-	storageEmulatorQueue = "127.0.0.1:10001"
-
-	userAgentHeader = "User-Agent"
-)
-
-// Client is the object that needs to be constructed to perform
-// operations on the storage account.
-type Client struct {
-	// HTTPClient is the http.Client used to initiate API
-	// requests.  If it is nil, http.DefaultClient is used.
-	HTTPClient *http.Client
-
-	accountName      string
-	accountKey       []byte
-	useHTTPS         bool
-	UseSharedKeyLite bool
-	baseURL          string
-	apiVersion       string
-	userAgent        string
-}
-
-type storageResponse struct {
-	statusCode int
-	headers    http.Header
-	body       io.ReadCloser
-}
-
-type odataResponse struct {
-	storageResponse
-	odata odataErrorMessage
-}
-
-// AzureStorageServiceError contains fields of the error response from
-// Azure Storage Service REST API. See https://msdn.microsoft.com/en-us/library/azure/dd179382.aspx
-// Some fields might be specific to certain calls.
-type AzureStorageServiceError struct {
-	Code                      string `xml:"Code"`
-	Message                   string `xml:"Message"`
-	AuthenticationErrorDetail string `xml:"AuthenticationErrorDetail"`
-	QueryParameterName        string `xml:"QueryParameterName"`
-	QueryParameterValue       string `xml:"QueryParameterValue"`
-	Reason                    string `xml:"Reason"`
-	StatusCode                int
-	RequestID                 string
-}
-
-type odataErrorMessageMessage struct {
-	Lang  string `json:"lang"`
-	Value string `json:"value"`
-}
-
-type odataErrorMessageInternal struct {
-	Code    string                   `json:"code"`
-	Message odataErrorMessageMessage `json:"message"`
-}
-
-type odataErrorMessage struct {
-	Err odataErrorMessageInternal `json:"odata.error"`
-}
-
-// UnexpectedStatusCodeError is returned when a storage service responds with neither an error
-// nor with an HTTP status code indicating success.
-type UnexpectedStatusCodeError struct {
-	allowed []int
-	got     int
-}
-
-func (e UnexpectedStatusCodeError) Error() string {
-	s := func(i int) string { return fmt.Sprintf("%d %s", i, http.StatusText(i)) }
-
-	got := s(e.got)
-	expected := []string{}
-	for _, v := range e.allowed {
-		expected = append(expected, s(v))
-	}
-	return fmt.Sprintf("storage: status code from service response is %s; was expecting %s", got, strings.Join(expected, " or "))
-}
-
-// Got is the actual status code returned by Azure.
-func (e UnexpectedStatusCodeError) Got() int {
-	return e.got
-}
-
-// NewBasicClient constructs a Client with given storage service name and
-// key.
-func NewBasicClient(accountName, accountKey string) (Client, error) {
-	if accountName == StorageEmulatorAccountName {
-		return NewEmulatorClient()
-	}
-	return NewClient(accountName, accountKey, DefaultBaseURL, DefaultAPIVersion, defaultUseHTTPS)
-}
-
-// NewBasicClientOnSovereignCloud constructs a Client with given storage service name and
-// key in the referenced cloud.
-func NewBasicClientOnSovereignCloud(accountName, accountKey string, env azure.Environment) (Client, error) {
-	if accountName == StorageEmulatorAccountName {
-		return NewEmulatorClient()
-	}
-	return NewClient(accountName, accountKey, env.StorageEndpointSuffix, DefaultAPIVersion, defaultUseHTTPS)
-}
-
-//NewEmulatorClient contructs a Client intended to only work with Azure
-//Storage Emulator
-func NewEmulatorClient() (Client, error) {
-	return NewClient(StorageEmulatorAccountName, StorageEmulatorAccountKey, DefaultBaseURL, DefaultAPIVersion, false)
-}
-
-// NewClient constructs a Client. This should be used if the caller wants
-// to specify whether to use HTTPS, a specific REST API version or a custom
-// storage endpoint than Azure Public Cloud.
-func NewClient(accountName, accountKey, blobServiceBaseURL, apiVersion string, useHTTPS bool) (Client, error) {
-	var c Client
-	if accountName == "" {
-		return c, fmt.Errorf("azure: account name required")
-	} else if accountKey == "" {
-		return c, fmt.Errorf("azure: account key required")
-	} else if blobServiceBaseURL == "" {
-		return c, fmt.Errorf("azure: base storage service url required")
-	}
-
-	key, err := base64.StdEncoding.DecodeString(accountKey)
-	if err != nil {
-		return c, fmt.Errorf("azure: malformed storage account key: %v", err)
-	}
-
-	c = Client{
-		accountName:      accountName,
-		accountKey:       key,
-		useHTTPS:         useHTTPS,
-		baseURL:          blobServiceBaseURL,
-		apiVersion:       apiVersion,
-		UseSharedKeyLite: false,
-	}
-	c.userAgent = c.getDefaultUserAgent()
-	return c, nil
-}
-
-func (c Client) getDefaultUserAgent() string {
-	return fmt.Sprintf("Go/%s (%s-%s) Azure-SDK-For-Go/%s storage-dataplane/%s",
-		runtime.Version(),
-		runtime.GOARCH,
-		runtime.GOOS,
-		sdkVersion,
-		c.apiVersion,
-	)
-}
-
-// AddToUserAgent adds an extension to the current user agent
-func (c *Client) AddToUserAgent(extension string) error {
-	if extension != "" {
-		c.userAgent = fmt.Sprintf("%s %s", c.userAgent, extension)
-		return nil
-	}
-	return fmt.Errorf("Extension was empty, User Agent stayed as %s", c.userAgent)
-}
-
-// protectUserAgent is used in funcs that include extraheaders as a parameter.
-// It prevents the User-Agent header to be overwritten, instead if it happens to
-// be present, it gets added to the current User-Agent. Use it before getStandardHeaders
-func (c *Client) protectUserAgent(extraheaders map[string]string) map[string]string {
-	if v, ok := extraheaders[userAgentHeader]; ok {
-		c.AddToUserAgent(v)
-		delete(extraheaders, userAgentHeader)
-	}
-	return extraheaders
-}
-
-func (c Client) getBaseURL(service string) string {
-	scheme := "http"
-	if c.useHTTPS {
-		scheme = "https"
-	}
-	host := ""
-	if c.accountName == StorageEmulatorAccountName {
-		switch service {
-		case blobServiceName:
-			host = storageEmulatorBlob
-		case tableServiceName:
-			host = storageEmulatorTable
-		case queueServiceName:
-			host = storageEmulatorQueue
-		}
-	} else {
-		host = fmt.Sprintf("%s.%s.%s", c.accountName, service, c.baseURL)
-	}
-
-	u := &url.URL{
-		Scheme: scheme,
-		Host:   host}
-	return u.String()
-}
-
-func (c Client) getEndpoint(service, path string, params url.Values) string {
-	u, err := url.Parse(c.getBaseURL(service))
-	if err != nil {
-		// really should not be happening
-		panic(err)
-	}
-
-	// API doesn't accept path segments not starting with '/'
-	if !strings.HasPrefix(path, "/") {
-		path = fmt.Sprintf("/%v", path)
-	}
-
-	if c.accountName == StorageEmulatorAccountName {
-		path = fmt.Sprintf("/%v%v", StorageEmulatorAccountName, path)
-	}
-
-	u.Path = path
-	u.RawQuery = params.Encode()
-	return u.String()
-}
-
-// GetBlobService returns a BlobStorageClient which can operate on the blob
-// service of the storage account.
-func (c Client) GetBlobService() BlobStorageClient {
-	b := BlobStorageClient{
-		client: c,
-	}
-	b.client.AddToUserAgent(blobServiceName)
-	b.auth = sharedKey
-	if c.UseSharedKeyLite {
-		b.auth = sharedKeyLite
-	}
-	return b
-}
-
-// GetQueueService returns a QueueServiceClient which can operate on the queue
-// service of the storage account.
-func (c Client) GetQueueService() QueueServiceClient {
-	q := QueueServiceClient{
-		client: c,
-	}
-	q.client.AddToUserAgent(queueServiceName)
-	q.auth = sharedKey
-	if c.UseSharedKeyLite {
-		q.auth = sharedKeyLite
-	}
-	return q
-}
-
-// GetTableService returns a TableServiceClient which can operate on the table
-// service of the storage account.
-func (c Client) GetTableService() TableServiceClient {
-	t := TableServiceClient{
-		client: c,
-	}
-	t.client.AddToUserAgent(tableServiceName)
-	t.auth = sharedKeyForTable
-	if c.UseSharedKeyLite {
-		t.auth = sharedKeyLiteForTable
-	}
-	return t
-}
-
-// GetFileService returns a FileServiceClient which can operate on the file
-// service of the storage account.
-func (c Client) GetFileService() FileServiceClient {
-	f := FileServiceClient{
-		client: c,
-	}
-	f.client.AddToUserAgent(fileServiceName)
-	f.auth = sharedKey
-	if c.UseSharedKeyLite {
-		f.auth = sharedKeyLite
-	}
-	return f
-}
-
-func (c Client) getStandardHeaders() map[string]string {
-	return map[string]string{
-		userAgentHeader: c.userAgent,
-		"x-ms-version":  c.apiVersion,
-		"x-ms-date":     currentTimeRfc1123Formatted(),
-	}
-}
-
-func (c Client) exec(verb, url string, headers map[string]string, body io.Reader, auth authentication) (*storageResponse, error) {
-	headers, err := c.addAuthorizationHeader(verb, url, headers, auth)
-	if err != nil {
-		return nil, err
-	}
-
-	req, err := http.NewRequest(verb, url, body)
-	if err != nil {
-		return nil, errors.New("azure/storage: error creating request: " + err.Error())
-	}
-
-	if clstr, ok := headers["Content-Length"]; ok {
-		// content length header is being signed, but completely ignored by golang.
-		// instead we have to use the ContentLength property on the request struct
-		// (see https://golang.org/src/net/http/request.go?s=18140:18370#L536 and
-		// https://golang.org/src/net/http/transfer.go?s=1739:2467#L49)
-		req.ContentLength, err = strconv.ParseInt(clstr, 10, 64)
-		if err != nil {
-			return nil, err
-		}
-	}
-	for k, v := range headers {
-		req.Header.Add(k, v)
-	}
-
-	httpClient := c.HTTPClient
-	if httpClient == nil {
-		httpClient = http.DefaultClient
-	}
-	resp, err := httpClient.Do(req)
-	if err != nil {
-		return nil, err
-	}
-
-	statusCode := resp.StatusCode
-	if statusCode >= 400 && statusCode <= 505 {
-		var respBody []byte
-		respBody, err = readAndCloseBody(resp.Body)
-		if err != nil {
-			return nil, err
-		}
-
-		requestID := resp.Header.Get("x-ms-request-id")
-		if len(respBody) == 0 {
-			// no error in response body, might happen in HEAD requests
-			err = serviceErrFromStatusCode(resp.StatusCode, resp.Status, requestID)
-		} else {
-			// response contains storage service error object, unmarshal
-			storageErr, errIn := serviceErrFromXML(respBody, resp.StatusCode, requestID)
-			if err != nil { // error unmarshaling the error response
-				err = errIn
-			}
-			err = storageErr
-		}
-		return &storageResponse{
-			statusCode: resp.StatusCode,
-			headers:    resp.Header,
-			body:       ioutil.NopCloser(bytes.NewReader(respBody)), /* restore the body */
-		}, err
-	}
-
-	return &storageResponse{
-		statusCode: resp.StatusCode,
-		headers:    resp.Header,
-		body:       resp.Body}, nil
-}
-
-func (c Client) execInternalJSON(verb, url string, headers map[string]string, body io.Reader, auth authentication) (*odataResponse, error) {
-	headers, err := c.addAuthorizationHeader(verb, url, headers, auth)
-	if err != nil {
-		return nil, err
-	}
-
-	req, err := http.NewRequest(verb, url, body)
-	for k, v := range headers {
-		req.Header.Add(k, v)
-	}
-
-	httpClient := c.HTTPClient
-	if httpClient == nil {
-		httpClient = http.DefaultClient
-	}
-
-	resp, err := httpClient.Do(req)
-	if err != nil {
-		return nil, err
-	}
-
-	respToRet := &odataResponse{}
-	respToRet.body = resp.Body
-	respToRet.statusCode = resp.StatusCode
-	respToRet.headers = resp.Header
-
-	statusCode := resp.StatusCode
-	if statusCode >= 400 && statusCode <= 505 {
-		var respBody []byte
-		respBody, err = readAndCloseBody(resp.Body)
-		if err != nil {
-			return nil, err
-		}
-
-		if len(respBody) == 0 {
-			// no error in response body, might happen in HEAD requests
-			err = serviceErrFromStatusCode(resp.StatusCode, resp.Status, resp.Header.Get("x-ms-request-id"))
-			return respToRet, err
-		}
-		// try unmarshal as odata.error json
-		err = json.Unmarshal(respBody, &respToRet.odata)
-		return respToRet, err
-	}
-
-	return respToRet, nil
-}
-
-func readAndCloseBody(body io.ReadCloser) ([]byte, error) {
-	defer body.Close()
-	out, err := ioutil.ReadAll(body)
-	if err == io.EOF {
-		err = nil
-	}
-	return out, err
-}
-
-func serviceErrFromXML(body []byte, statusCode int, requestID string) (AzureStorageServiceError, error) {
-	var storageErr AzureStorageServiceError
-	if err := xml.Unmarshal(body, &storageErr); err != nil {
-		return storageErr, err
-	}
-	storageErr.StatusCode = statusCode
-	storageErr.RequestID = requestID
-	return storageErr, nil
-}
-
-func serviceErrFromStatusCode(code int, status string, requestID string) AzureStorageServiceError {
-	return AzureStorageServiceError{
-		StatusCode: code,
-		Code:       status,
-		RequestID:  requestID,
-		Message:    "no response body was available for error status code",
-	}
-}
-
-func (e AzureStorageServiceError) Error() string {
-	return fmt.Sprintf("storage: service returned error: StatusCode=%d, ErrorCode=%s, ErrorMessage=%s, RequestId=%s, QueryParameterName=%s, QueryParameterValue=%s",
-		e.StatusCode, e.Code, e.Message, e.RequestID, e.QueryParameterName, e.QueryParameterValue)
-}
-
-// checkRespCode returns UnexpectedStatusError if the given response code is not
-// one of the allowed status codes; otherwise nil.
-func checkRespCode(respCode int, allowed []int) error {
-	for _, v := range allowed {
-		if respCode == v {
-			return nil
-		}
-	}
-	return UnexpectedStatusCodeError{allowed, respCode}
-}

vendor/github.com/Azure/azure-storage-go/container.go

@@ -1,376 +0,0 @@
-package storage
-
-import (
-	"encoding/xml"
-	"errors"
-	"fmt"
-	"io"
-	"net/http"
-	"net/url"
-	"strconv"
-	"time"
-)
-
-// Container represents an Azure container.
-type Container struct {
-	bsc        *BlobStorageClient
-	Name       string              `xml:"Name"`
-	Properties ContainerProperties `xml:"Properties"`
-}
-
-func (c *Container) buildPath() string {
-	return fmt.Sprintf("/%s", c.Name)
-}
-
-// ContainerProperties contains various properties of a container returned from
-// various endpoints like ListContainers.
-type ContainerProperties struct {
-	LastModified  string `xml:"Last-Modified"`
-	Etag          string `xml:"Etag"`
-	LeaseStatus   string `xml:"LeaseStatus"`
-	LeaseState    string `xml:"LeaseState"`
-	LeaseDuration string `xml:"LeaseDuration"`
-}
-
-// ContainerListResponse contains the response fields from
-// ListContainers call.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dd179352.aspx
-type ContainerListResponse struct {
-	XMLName    xml.Name    `xml:"EnumerationResults"`
-	Xmlns      string      `xml:"xmlns,attr"`
-	Prefix     string      `xml:"Prefix"`
-	Marker     string      `xml:"Marker"`
-	NextMarker string      `xml:"NextMarker"`
-	MaxResults int64       `xml:"MaxResults"`
-	Containers []Container `xml:"Containers>Container"`
-}
-
-// BlobListResponse contains the response fields from ListBlobs call.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dd135734.aspx
-type BlobListResponse struct {
-	XMLName    xml.Name `xml:"EnumerationResults"`
-	Xmlns      string   `xml:"xmlns,attr"`
-	Prefix     string   `xml:"Prefix"`
-	Marker     string   `xml:"Marker"`
-	NextMarker string   `xml:"NextMarker"`
-	MaxResults int64    `xml:"MaxResults"`
-	Blobs      []Blob   `xml:"Blobs>Blob"`
-
-	// BlobPrefix is used to traverse blobs as if it were a file system.
-	// It is returned if ListBlobsParameters.Delimiter is specified.
-	// The list here can be thought of as "folders" that may contain
-	// other folders or blobs.
-	BlobPrefixes []string `xml:"Blobs>BlobPrefix>Name"`
-
-	// Delimiter is used to traverse blobs as if it were a file system.
-	// It is returned if ListBlobsParameters.Delimiter is specified.
-	Delimiter string `xml:"Delimiter"`
-}
-
-// ListBlobsParameters defines the set of customizable
-// parameters to make a List Blobs call.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dd135734.aspx
-type ListBlobsParameters struct {
-	Prefix     string
-	Delimiter  string
-	Marker     string
-	Include    string
-	MaxResults uint
-	Timeout    uint
-}
-
-func (p ListBlobsParameters) getParameters() url.Values {
-	out := url.Values{}
-
-	if p.Prefix != "" {
-		out.Set("prefix", p.Prefix)
-	}
-	if p.Delimiter != "" {
-		out.Set("delimiter", p.Delimiter)
-	}
-	if p.Marker != "" {
-		out.Set("marker", p.Marker)
-	}
-	if p.Include != "" {
-		out.Set("include", p.Include)
-	}
-	if p.MaxResults != 0 {
-		out.Set("maxresults", fmt.Sprintf("%v", p.MaxResults))
-	}
-	if p.Timeout != 0 {
-		out.Set("timeout", fmt.Sprintf("%v", p.Timeout))
-	}
-
-	return out
-}
-
-// ContainerAccessType defines the access level to the container from a public
-// request.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dd179468.aspx and "x-ms-
-// blob-public-access" header.
-type ContainerAccessType string
-
-// Access options for containers
-const (
-	ContainerAccessTypePrivate   ContainerAccessType = ""
-	ContainerAccessTypeBlob      ContainerAccessType = "blob"
-	ContainerAccessTypeContainer ContainerAccessType = "container"
-)
-
-// ContainerAccessPolicy represents each access policy in the container ACL.
-type ContainerAccessPolicy struct {
-	ID         string
-	StartTime  time.Time
-	ExpiryTime time.Time
-	CanRead    bool
-	CanWrite   bool
-	CanDelete  bool
-}
-
-// ContainerPermissions represents the container ACLs.
-type ContainerPermissions struct {
-	AccessType     ContainerAccessType
-	AccessPolicies []ContainerAccessPolicy
-}
-
-// ContainerAccessHeader references header used when setting/getting container ACL
-const (
-	ContainerAccessHeader string = "x-ms-blob-public-access"
-)
-
-// Create creates a blob container within the storage account
-// with given name and access level. Returns error if container already exists.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dd179468.aspx
-func (c *Container) Create() error {
-	resp, err := c.create()
-	if err != nil {
-		return err
-	}
-	defer readAndCloseBody(resp.body)
-	return checkRespCode(resp.statusCode, []int{http.StatusCreated})
-}
-
-// CreateIfNotExists creates a blob container if it does not exist. Returns
-// true if container is newly created or false if container already exists.
-func (c *Container) CreateIfNotExists() (bool, error) {
-	resp, err := c.create()
-	if resp != nil {
-		defer readAndCloseBody(resp.body)
-		if resp.statusCode == http.StatusCreated || resp.statusCode == http.StatusConflict {
-			return resp.statusCode == http.StatusCreated, nil
-		}
-	}
-	return false, err
-}
-
-func (c *Container) create() (*storageResponse, error) {
-	uri := c.bsc.client.getEndpoint(blobServiceName, c.buildPath(), url.Values{"restype": {"container"}})
-	headers := c.bsc.client.getStandardHeaders()
-	return c.bsc.client.exec(http.MethodPut, uri, headers, nil, c.bsc.auth)
-}
-
-// Exists returns true if a container with given name exists
-// on the storage account, otherwise returns false.
-func (c *Container) Exists() (bool, error) {
-	uri := c.bsc.client.getEndpoint(blobServiceName, c.buildPath(), url.Values{"restype": {"container"}})
-	headers := c.bsc.client.getStandardHeaders()
-
-	resp, err := c.bsc.client.exec(http.MethodHead, uri, headers, nil, c.bsc.auth)
-	if resp != nil {
-		defer readAndCloseBody(resp.body)
-		if resp.statusCode == http.StatusOK || resp.statusCode == http.StatusNotFound {
-			return resp.statusCode == http.StatusOK, nil
-		}
-	}
-	return false, err
-}
-
-// SetPermissions sets up container permissions as per https://msdn.microsoft.com/en-us/library/azure/dd179391.aspx
-func (c *Container) SetPermissions(permissions ContainerPermissions, timeout int, leaseID string) error {
-	params := url.Values{
-		"restype": {"container"},
-		"comp":    {"acl"},
-	}
-
-	if timeout > 0 {
-		params.Add("timeout", strconv.Itoa(timeout))
-	}
-
-	uri := c.bsc.client.getEndpoint(blobServiceName, c.buildPath(), params)
-	headers := c.bsc.client.getStandardHeaders()
-	if permissions.AccessType != "" {
-		headers[ContainerAccessHeader] = string(permissions.AccessType)
-	}
-
-	if leaseID != "" {
-		headers[headerLeaseID] = leaseID
-	}
-
-	body, length, err := generateContainerACLpayload(permissions.AccessPolicies)
-	headers["Content-Length"] = strconv.Itoa(length)
-
-	resp, err := c.bsc.client.exec(http.MethodPut, uri, headers, body, c.bsc.auth)
-	if err != nil {
-		return err
-	}
-	defer readAndCloseBody(resp.body)
-
-	if err := checkRespCode(resp.statusCode, []int{http.StatusOK}); err != nil {
-		return errors.New("Unable to set permissions")
-	}
-
-	return nil
-}
-
-// GetPermissions gets the container permissions as per https://msdn.microsoft.com/en-us/library/azure/dd179469.aspx
-// If timeout is 0 then it will not be passed to Azure
-// leaseID will only be passed to Azure if populated
-func (c *Container) GetPermissions(timeout int, leaseID string) (*ContainerPermissions, error) {
-	params := url.Values{
-		"restype": {"container"},
-		"comp":    {"acl"},
-	}
-
-	if timeout > 0 {
-		params.Add("timeout", strconv.Itoa(timeout))
-	}
-
-	uri := c.bsc.client.getEndpoint(blobServiceName, c.buildPath(), params)
-	headers := c.bsc.client.getStandardHeaders()
-
-	if leaseID != "" {
-		headers[headerLeaseID] = leaseID
-	}
-
-	resp, err := c.bsc.client.exec(http.MethodGet, uri, headers, nil, c.bsc.auth)
-	if err != nil {
-		return nil, err
-	}
-	defer resp.body.Close()
-
-	var ap AccessPolicy
-	err = xmlUnmarshal(resp.body, &ap.SignedIdentifiersList)
-	if err != nil {
-		return nil, err
-	}
-	return buildAccessPolicy(ap, &resp.headers), nil
-}
-
-func buildAccessPolicy(ap AccessPolicy, headers *http.Header) *ContainerPermissions {
-	// containerAccess. Blob, Container, empty
-	containerAccess := headers.Get(http.CanonicalHeaderKey(ContainerAccessHeader))
-	permissions := ContainerPermissions{
-		AccessType:     ContainerAccessType(containerAccess),
-		AccessPolicies: []ContainerAccessPolicy{},
-	}
-
-	for _, policy := range ap.SignedIdentifiersList.SignedIdentifiers {
-		capd := ContainerAccessPolicy{
-			ID:         policy.ID,
-			StartTime:  policy.AccessPolicy.StartTime,
-			ExpiryTime: policy.AccessPolicy.ExpiryTime,
-		}
-		capd.CanRead = updatePermissions(policy.AccessPolicy.Permission, "r")
-		capd.CanWrite = updatePermissions(policy.AccessPolicy.Permission, "w")
-		capd.CanDelete = updatePermissions(policy.AccessPolicy.Permission, "d")
-
-		permissions.AccessPolicies = append(permissions.AccessPolicies, capd)
-	}
-	return &permissions
-}
-
-// Delete deletes the container with given name on the storage
-// account. If the container does not exist returns error.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dd179408.aspx
-func (c *Container) Delete() error {
-	resp, err := c.delete()
-	if err != nil {
-		return err
-	}
-	defer readAndCloseBody(resp.body)
-	return checkRespCode(resp.statusCode, []int{http.StatusAccepted})
-}
-
-// DeleteIfExists deletes the container with given name on the storage
-// account if it exists. Returns true if container is deleted with this call, or
-// false if the container did not exist at the time of the Delete Container
-// operation.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dd179408.aspx
-func (c *Container) DeleteIfExists() (bool, error) {
-	resp, err := c.delete()
-	if resp != nil {
-		defer readAndCloseBody(resp.body)
-		if resp.statusCode == http.StatusAccepted || resp.statusCode == http.StatusNotFound {
-			return resp.statusCode == http.StatusAccepted, nil
-		}
-	}
-	return false, err
-}
-
-func (c *Container) delete() (*storageResponse, error) {
-	uri := c.bsc.client.getEndpoint(blobServiceName, c.buildPath(), url.Values{"restype": {"container"}})
-	headers := c.bsc.client.getStandardHeaders()
-	return c.bsc.client.exec(http.MethodDelete, uri, headers, nil, c.bsc.auth)
-}
-
-// ListBlobs returns an object that contains list of blobs in the container,
-// pagination token and other information in the response of List Blobs call.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dd135734.aspx
-func (c *Container) ListBlobs(params ListBlobsParameters) (BlobListResponse, error) {
-	q := mergeParams(params.getParameters(), url.Values{
-		"restype": {"container"},
-		"comp":    {"list"}},
-	)
-	uri := c.bsc.client.getEndpoint(blobServiceName, c.buildPath(), q)
-	headers := c.bsc.client.getStandardHeaders()
-
-	var out BlobListResponse
-	resp, err := c.bsc.client.exec(http.MethodGet, uri, headers, nil, c.bsc.auth)
-	if err != nil {
-		return out, err
-	}
-	defer resp.body.Close()
-
-	err = xmlUnmarshal(resp.body, &out)
-	return out, err
-}
-
-func generateContainerACLpayload(policies []ContainerAccessPolicy) (io.Reader, int, error) {
-	sil := SignedIdentifiers{
-		SignedIdentifiers: []SignedIdentifier{},
-	}
-	for _, capd := range policies {
-		permission := capd.generateContainerPermissions()
-		signedIdentifier := convertAccessPolicyToXMLStructs(capd.ID, capd.StartTime, capd.ExpiryTime, permission)
-		sil.SignedIdentifiers = append(sil.SignedIdentifiers, signedIdentifier)
-	}
-	return xmlMarshal(sil)
-}
-
-func (capd *ContainerAccessPolicy) generateContainerPermissions() (permissions string) {
-	// generate the permissions string (rwd).
-	// still want the end user API to have bool flags.
-	permissions = ""
-
-	if capd.CanRead {
-		permissions += "r"
-	}
-
-	if capd.CanWrite {
-		permissions += "w"
-	}
-
-	if capd.CanDelete {
-		permissions += "d"
-	}
-
-	return permissions
-}

vendor/github.com/Azure/azure-storage-go/directory.go

@@ -1,217 +0,0 @@
-package storage
-
-import (
-	"encoding/xml"
-	"net/http"
-	"net/url"
-)
-
-// Directory represents a directory on a share.
-type Directory struct {
-	fsc        *FileServiceClient
-	Metadata   map[string]string
-	Name       string `xml:"Name"`
-	parent     *Directory
-	Properties DirectoryProperties
-	share      *Share
-}
-
-// DirectoryProperties contains various properties of a directory.
-type DirectoryProperties struct {
-	LastModified string `xml:"Last-Modified"`
-	Etag         string `xml:"Etag"`
-}
-
-// ListDirsAndFilesParameters defines the set of customizable parameters to
-// make a List Files and Directories call.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dn166980.aspx
-type ListDirsAndFilesParameters struct {
-	Marker     string
-	MaxResults uint
-	Timeout    uint
-}
-
-// DirsAndFilesListResponse contains the response fields from
-// a List Files and Directories call.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dn166980.aspx
-type DirsAndFilesListResponse struct {
-	XMLName     xml.Name    `xml:"EnumerationResults"`
-	Xmlns       string      `xml:"xmlns,attr"`
-	Marker      string      `xml:"Marker"`
-	MaxResults  int64       `xml:"MaxResults"`
-	Directories []Directory `xml:"Entries>Directory"`
-	Files       []File      `xml:"Entries>File"`
-	NextMarker  string      `xml:"NextMarker"`
-}
-
-// builds the complete directory path for this directory object.
-func (d *Directory) buildPath() string {
-	path := ""
-	current := d
-	for current.Name != "" {
-		path = "/" + current.Name + path
-		current = current.parent
-	}
-	return d.share.buildPath() + path
-}
-
-// Create this directory in the associated share.
-// If a directory with the same name already exists, the operation fails.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dn166993.aspx
-func (d *Directory) Create() error {
-	// if this is the root directory exit early
-	if d.parent == nil {
-		return nil
-	}
-
-	headers, err := d.fsc.createResource(d.buildPath(), resourceDirectory, nil, mergeMDIntoExtraHeaders(d.Metadata, nil), []int{http.StatusCreated})
-	if err != nil {
-		return err
-	}
-
-	d.updateEtagAndLastModified(headers)
-	return nil
-}
-
-// CreateIfNotExists creates this directory under the associated share if the
-// directory does not exists. Returns true if the directory is newly created or
-// false if the directory already exists.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dn166993.aspx
-func (d *Directory) CreateIfNotExists() (bool, error) {
-	// if this is the root directory exit early
-	if d.parent == nil {
-		return false, nil
-	}
-
-	resp, err := d.fsc.createResourceNoClose(d.buildPath(), resourceDirectory, nil, nil)
-	if resp != nil {
-		defer readAndCloseBody(resp.body)
-		if resp.statusCode == http.StatusCreated || resp.statusCode == http.StatusConflict {
-			if resp.statusCode == http.StatusCreated {
-				d.updateEtagAndLastModified(resp.headers)
-				return true, nil
-			}
-
-			return false, d.FetchAttributes()
-		}
-	}
-
-	return false, err
-}
-
-// Delete removes this directory.  It must be empty in order to be deleted.
-// If the directory does not exist the operation fails.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dn166969.aspx
-func (d *Directory) Delete() error {
-	return d.fsc.deleteResource(d.buildPath(), resourceDirectory)
-}
-
-// DeleteIfExists removes this directory if it exists.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dn166969.aspx
-func (d *Directory) DeleteIfExists() (bool, error) {
-	resp, err := d.fsc.deleteResourceNoClose(d.buildPath(), resourceDirectory)
-	if resp != nil {
-		defer readAndCloseBody(resp.body)
-		if resp.statusCode == http.StatusAccepted || resp.statusCode == http.StatusNotFound {
-			return resp.statusCode == http.StatusAccepted, nil
-		}
-	}
-	return false, err
-}
-
-// Exists returns true if this directory exists.
-func (d *Directory) Exists() (bool, error) {
-	exists, headers, err := d.fsc.resourceExists(d.buildPath(), resourceDirectory)
-	if exists {
-		d.updateEtagAndLastModified(headers)
-	}
-	return exists, err
-}
-
-// FetchAttributes retrieves metadata for this directory.
-func (d *Directory) FetchAttributes() error {
-	headers, err := d.fsc.getResourceHeaders(d.buildPath(), compNone, resourceDirectory, http.MethodHead)
-	if err != nil {
-		return err
-	}
-
-	d.updateEtagAndLastModified(headers)
-	d.Metadata = getMetadataFromHeaders(headers)
-
-	return nil
-}
-
-// GetDirectoryReference returns a child Directory object for this directory.
-func (d *Directory) GetDirectoryReference(name string) *Directory {
-	return &Directory{
-		fsc:    d.fsc,
-		Name:   name,
-		parent: d,
-		share:  d.share,
-	}
-}
-
-// GetFileReference returns a child File object for this directory.
-func (d *Directory) GetFileReference(name string) *File {
-	return &File{
-		fsc:    d.fsc,
-		Name:   name,
-		parent: d,
-		share:  d.share,
-	}
-}
-
-// ListDirsAndFiles returns a list of files and directories under this directory.
-// It also contains a pagination token and other response details.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dn166980.aspx
-func (d *Directory) ListDirsAndFiles(params ListDirsAndFilesParameters) (*DirsAndFilesListResponse, error) {
-	q := mergeParams(params.getParameters(), getURLInitValues(compList, resourceDirectory))
-
-	resp, err := d.fsc.listContent(d.buildPath(), q, nil)
-	if err != nil {
-		return nil, err
-	}
-
-	defer resp.body.Close()
-	var out DirsAndFilesListResponse
-	err = xmlUnmarshal(resp.body, &out)
-	return &out, err
-}
-
-// SetMetadata replaces the metadata for this directory.
-//
-// Some keys may be converted to Camel-Case before sending. All keys
-// are returned in lower case by GetDirectoryMetadata. HTTP header names
-// are case-insensitive so case munging should not matter to other
-// applications either.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/mt427370.aspx
-func (d *Directory) SetMetadata() error {
-	headers, err := d.fsc.setResourceHeaders(d.buildPath(), compMetadata, resourceDirectory, mergeMDIntoExtraHeaders(d.Metadata, nil))
-	if err != nil {
-		return err
-	}
-
-	d.updateEtagAndLastModified(headers)
-	return nil
-}
-
-// updates Etag and last modified date
-func (d *Directory) updateEtagAndLastModified(headers http.Header) {
-	d.Properties.Etag = headers.Get("Etag")
-	d.Properties.LastModified = headers.Get("Last-Modified")
-}
-
-// URL gets the canonical URL to this directory.
-// This method does not create a publicly accessible URL if the directory
-// is private and this method does not check if the directory exists.
-func (d *Directory) URL() string {
-	return d.fsc.client.getEndpoint(fileServiceName, d.buildPath(), url.Values{})
-}

vendor/github.com/Azure/azure-storage-go/file.go

@@ -1,412 +0,0 @@
-package storage
-
-import (
-	"errors"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"net/http"
-	"net/url"
-	"strconv"
-)
-
-const fourMB = uint64(4194304)
-const oneTB = uint64(1099511627776)
-
-// File represents a file on a share.
-type File struct {
-	fsc                *FileServiceClient
-	Metadata           map[string]string
-	Name               string `xml:"Name"`
-	parent             *Directory
-	Properties         FileProperties `xml:"Properties"`
-	share              *Share
-	FileCopyProperties FileCopyState
-}
-
-// FileProperties contains various properties of a file.
-type FileProperties struct {
-	CacheControl string `header:"x-ms-cache-control"`
-	Disposition  string `header:"x-ms-content-disposition"`
-	Encoding     string `header:"x-ms-content-encoding"`
-	Etag         string
-	Language     string `header:"x-ms-content-language"`
-	LastModified string
-	Length       uint64 `xml:"Content-Length"`
-	MD5          string `header:"x-ms-content-md5"`
-	Type         string `header:"x-ms-content-type"`
-}
-
-// FileCopyState contains various properties of a file copy operation.
-type FileCopyState struct {
-	CompletionTime string
-	ID             string `header:"x-ms-copy-id"`
-	Progress       string
-	Source         string
-	Status         string `header:"x-ms-copy-status"`
-	StatusDesc     string
-}
-
-// FileStream contains file data returned from a call to GetFile.
-type FileStream struct {
-	Body       io.ReadCloser
-	ContentMD5 string
-}
-
-// FileRequestOptions will be passed to misc file operations.
-// Currently just Timeout (in seconds) but will expand.
-type FileRequestOptions struct {
-	Timeout uint // timeout duration in seconds.
-}
-
-// getParameters, construct parameters for FileRequestOptions.
-// currently only timeout, but expecting to grow as functionality fills out.
-func (p FileRequestOptions) getParameters() url.Values {
-	out := url.Values{}
-
-	if p.Timeout != 0 {
-		out.Set("timeout", fmt.Sprintf("%v", p.Timeout))
-	}
-
-	return out
-}
-
-// FileRanges contains a list of file range information for a file.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dn166984.aspx
-type FileRanges struct {
-	ContentLength uint64
-	LastModified  string
-	ETag          string
-	FileRanges    []FileRange `xml:"Range"`
-}
-
-// FileRange contains range information for a file.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dn166984.aspx
-type FileRange struct {
-	Start uint64 `xml:"Start"`
-	End   uint64 `xml:"End"`
-}
-
-func (fr FileRange) String() string {
-	return fmt.Sprintf("bytes=%d-%d", fr.Start, fr.End)
-}
-
-// builds the complete file path for this file object
-func (f *File) buildPath() string {
-	return f.parent.buildPath() + "/" + f.Name
-}
-
-// ClearRange releases the specified range of space in a file.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dn194276.aspx
-func (f *File) ClearRange(fileRange FileRange) error {
-	headers, err := f.modifyRange(nil, fileRange, nil)
-	if err != nil {
-		return err
-	}
-
-	f.updateEtagAndLastModified(headers)
-	return nil
-}
-
-// Create creates a new file or replaces an existing one.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dn194271.aspx
-func (f *File) Create(maxSize uint64) error {
-	if maxSize > oneTB {
-		return fmt.Errorf("max file size is 1TB")
-	}
-
-	extraHeaders := map[string]string{
-		"x-ms-content-length": strconv.FormatUint(maxSize, 10),
-		"x-ms-type":           "file",
-	}
-
-	headers, err := f.fsc.createResource(f.buildPath(), resourceFile, nil, mergeMDIntoExtraHeaders(f.Metadata, extraHeaders), []int{http.StatusCreated})
-	if err != nil {
-		return err
-	}
-
-	f.Properties.Length = maxSize
-	f.updateEtagAndLastModified(headers)
-	return nil
-}
-
-// CopyFile operation copied a file/blob from the sourceURL to the path provided.
-//
-// See https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/copy-file
-func (f *File) CopyFile(sourceURL string, options *FileRequestOptions) error {
-	extraHeaders := map[string]string{
-		"x-ms-type":        "file",
-		"x-ms-copy-source": sourceURL,
-	}
-
-	var parameters url.Values
-	if options != nil {
-		parameters = options.getParameters()
-	}
-
-	headers, err := f.fsc.createResource(f.buildPath(), resourceFile, parameters, mergeMDIntoExtraHeaders(f.Metadata, extraHeaders), []int{http.StatusAccepted})
-	if err != nil {
-		return err
-	}
-
-	f.updateEtagLastModifiedAndCopyHeaders(headers)
-	return nil
-}
-
-// Delete immediately removes this file from the storage account.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dn689085.aspx
-func (f *File) Delete() error {
-	return f.fsc.deleteResource(f.buildPath(), resourceFile)
-}
-
-// DeleteIfExists removes this file if it exists.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dn689085.aspx
-func (f *File) DeleteIfExists() (bool, error) {
-	resp, err := f.fsc.deleteResourceNoClose(f.buildPath(), resourceFile)
-	if resp != nil {
-		defer readAndCloseBody(resp.body)
-		if resp.statusCode == http.StatusAccepted || resp.statusCode == http.StatusNotFound {
-			return resp.statusCode == http.StatusAccepted, nil
-		}
-	}
-	return false, err
-}
-
-// DownloadRangeToStream operation downloads the specified range of this file with optional MD5 hash.
-//
-// See https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/get-file
-func (f *File) DownloadRangeToStream(fileRange FileRange, getContentMD5 bool) (fs FileStream, err error) {
-	if getContentMD5 && isRangeTooBig(fileRange) {
-		return fs, fmt.Errorf("must specify a range less than or equal to 4MB when getContentMD5 is true")
-	}
-
-	extraHeaders := map[string]string{
-		"Range": fileRange.String(),
-	}
-	if getContentMD5 == true {
-		extraHeaders["x-ms-range-get-content-md5"] = "true"
-	}
-
-	resp, err := f.fsc.getResourceNoClose(f.buildPath(), compNone, resourceFile, http.MethodGet, extraHeaders)
-	if err != nil {
-		return fs, err
-	}
-
-	if err = checkRespCode(resp.statusCode, []int{http.StatusOK, http.StatusPartialContent}); err != nil {
-		resp.body.Close()
-		return fs, err
-	}
-
-	fs.Body = resp.body
-	if getContentMD5 {
-		fs.ContentMD5 = resp.headers.Get("Content-MD5")
-	}
-	return fs, nil
-}
-
-// Exists returns true if this file exists.
-func (f *File) Exists() (bool, error) {
-	exists, headers, err := f.fsc.resourceExists(f.buildPath(), resourceFile)
-	if exists {
-		f.updateEtagAndLastModified(headers)
-		f.updateProperties(headers)
-	}
-	return exists, err
-}
-
-// FetchAttributes updates metadata and properties for this file.
-func (f *File) FetchAttributes() error {
-	headers, err := f.fsc.getResourceHeaders(f.buildPath(), compNone, resourceFile, http.MethodHead)
-	if err != nil {
-		return err
-	}
-
-	f.updateEtagAndLastModified(headers)
-	f.updateProperties(headers)
-	f.Metadata = getMetadataFromHeaders(headers)
-	return nil
-}
-
-// returns true if the range is larger than 4MB
-func isRangeTooBig(fileRange FileRange) bool {
-	if fileRange.End-fileRange.Start > fourMB {
-		return true
-	}
-
-	return false
-}
-
-// ListRanges returns the list of valid ranges for this file.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dn166984.aspx
-func (f *File) ListRanges(listRange *FileRange) (*FileRanges, error) {
-	params := url.Values{"comp": {"rangelist"}}
-
-	// add optional range to list
-	var headers map[string]string
-	if listRange != nil {
-		headers = make(map[string]string)
-		headers["Range"] = listRange.String()
-	}
-
-	resp, err := f.fsc.listContent(f.buildPath(), params, headers)
-	if err != nil {
-		return nil, err
-	}
-
-	defer resp.body.Close()
-	var cl uint64
-	cl, err = strconv.ParseUint(resp.headers.Get("x-ms-content-length"), 10, 64)
-	if err != nil {
-		ioutil.ReadAll(resp.body)
-		return nil, err
-	}
-
-	var out FileRanges
-	out.ContentLength = cl
-	out.ETag = resp.headers.Get("ETag")
-	out.LastModified = resp.headers.Get("Last-Modified")
-
-	err = xmlUnmarshal(resp.body, &out)
-	return &out, err
-}
-
-// modifies a range of bytes in this file
-func (f *File) modifyRange(bytes io.Reader, fileRange FileRange, contentMD5 *string) (http.Header, error) {
-	if err := f.fsc.checkForStorageEmulator(); err != nil {
-		return nil, err
-	}
-	if fileRange.End < fileRange.Start {
-		return nil, errors.New("the value for rangeEnd must be greater than or equal to rangeStart")
-	}
-	if bytes != nil && isRangeTooBig(fileRange) {
-		return nil, errors.New("range cannot exceed 4MB in size")
-	}
-
-	uri := f.fsc.client.getEndpoint(fileServiceName, f.buildPath(), url.Values{"comp": {"range"}})
-
-	// default to clear
-	write := "clear"
-	cl := uint64(0)
-
-	// if bytes is not nil then this is an update operation
-	if bytes != nil {
-		write = "update"
-		cl = (fileRange.End - fileRange.Start) + 1
-	}
-
-	extraHeaders := map[string]string{
-		"Content-Length": strconv.FormatUint(cl, 10),
-		"Range":          fileRange.String(),
-		"x-ms-write":     write,
-	}
-
-	if contentMD5 != nil {
-		extraHeaders["Content-MD5"] = *contentMD5
-	}
-
-	headers := mergeHeaders(f.fsc.client.getStandardHeaders(), extraHeaders)
-	resp, err := f.fsc.client.exec(http.MethodPut, uri, headers, bytes, f.fsc.auth)
-	if err != nil {
-		return nil, err
-	}
-	defer readAndCloseBody(resp.body)
-	return resp.headers, checkRespCode(resp.statusCode, []int{http.StatusCreated})
-}
-
-// SetMetadata replaces the metadata for this file.
-//
-// Some keys may be converted to Camel-Case before sending. All keys
-// are returned in lower case by GetFileMetadata. HTTP header names
-// are case-insensitive so case munging should not matter to other
-// applications either.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dn689097.aspx
-func (f *File) SetMetadata() error {
-	headers, err := f.fsc.setResourceHeaders(f.buildPath(), compMetadata, resourceFile, mergeMDIntoExtraHeaders(f.Metadata, nil))
-	if err != nil {
-		return err
-	}
-
-	f.updateEtagAndLastModified(headers)
-	return nil
-}
-
-// SetProperties sets system properties on this file.
-//
-// Some keys may be converted to Camel-Case before sending. All keys
-// are returned in lower case by SetFileProperties. HTTP header names
-// are case-insensitive so case munging should not matter to other
-// applications either.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dn166975.aspx
-func (f *File) SetProperties() error {
-	headers, err := f.fsc.setResourceHeaders(f.buildPath(), compProperties, resourceFile, headersFromStruct(f.Properties))
-	if err != nil {
-		return err
-	}
-
-	f.updateEtagAndLastModified(headers)
-	return nil
-}
-
-// updates Etag and last modified date
-func (f *File) updateEtagAndLastModified(headers http.Header) {
-	f.Properties.Etag = headers.Get("Etag")
-	f.Properties.LastModified = headers.Get("Last-Modified")
-}
-
-// updates Etag, last modified date and x-ms-copy-id
-func (f *File) updateEtagLastModifiedAndCopyHeaders(headers http.Header) {
-	f.Properties.Etag = headers.Get("Etag")
-	f.Properties.LastModified = headers.Get("Last-Modified")
-	f.FileCopyProperties.ID = headers.Get("X-Ms-Copy-Id")
-	f.FileCopyProperties.Status = headers.Get("X-Ms-Copy-Status")
-}
-
-// updates file properties from the specified HTTP header
-func (f *File) updateProperties(header http.Header) {
-	size, err := strconv.ParseUint(header.Get("Content-Length"), 10, 64)
-	if err == nil {
-		f.Properties.Length = size
-	}
-
-	f.updateEtagAndLastModified(header)
-	f.Properties.CacheControl = header.Get("Cache-Control")
-	f.Properties.Disposition = header.Get("Content-Disposition")
-	f.Properties.Encoding = header.Get("Content-Encoding")
-	f.Properties.Language = header.Get("Content-Language")
-	f.Properties.MD5 = header.Get("Content-MD5")
-	f.Properties.Type = header.Get("Content-Type")
-}
-
-// URL gets the canonical URL to this file.
-// This method does not create a publicly accessible URL if the file
-// is private and this method does not check if the file exists.
-func (f *File) URL() string {
-	return f.fsc.client.getEndpoint(fileServiceName, f.buildPath(), url.Values{})
-}
-
-// WriteRange writes a range of bytes to this file with an optional MD5 hash of the content.
-// Note that the length of bytes must match (rangeEnd - rangeStart) + 1 with a maximum size of 4MB.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dn194276.aspx
-func (f *File) WriteRange(bytes io.Reader, fileRange FileRange, contentMD5 *string) error {
-	if bytes == nil {
-		return errors.New("bytes cannot be nil")
-	}
-
-	headers, err := f.modifyRange(bytes, fileRange, contentMD5)
-	if err != nil {
-		return err
-	}
-
-	f.updateEtagAndLastModified(headers)
-	return nil
-}

vendor/github.com/Azure/azure-storage-go/fileserviceclient.go

@@ -1,375 +0,0 @@
-package storage
-
-import (
-	"encoding/xml"
-	"fmt"
-	"net/http"
-	"net/url"
-	"strings"
-)
-
-// FileServiceClient contains operations for Microsoft Azure File Service.
-type FileServiceClient struct {
-	client Client
-	auth   authentication
-}
-
-// ListSharesParameters defines the set of customizable parameters to make a
-// List Shares call.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dn167009.aspx
-type ListSharesParameters struct {
-	Prefix     string
-	Marker     string
-	Include    string
-	MaxResults uint
-	Timeout    uint
-}
-
-// ShareListResponse contains the response fields from
-// ListShares call.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dn167009.aspx
-type ShareListResponse struct {
-	XMLName    xml.Name `xml:"EnumerationResults"`
-	Xmlns      string   `xml:"xmlns,attr"`
-	Prefix     string   `xml:"Prefix"`
-	Marker     string   `xml:"Marker"`
-	NextMarker string   `xml:"NextMarker"`
-	MaxResults int64    `xml:"MaxResults"`
-	Shares     []Share  `xml:"Shares>Share"`
-}
-
-type compType string
-
-const (
-	compNone       compType = ""
-	compList       compType = "list"
-	compMetadata   compType = "metadata"
-	compProperties compType = "properties"
-	compRangeList  compType = "rangelist"
-)
-
-func (ct compType) String() string {
-	return string(ct)
-}
-
-type resourceType string
-
-const (
-	resourceDirectory resourceType = "directory"
-	resourceFile      resourceType = ""
-	resourceShare     resourceType = "share"
-)
-
-func (rt resourceType) String() string {
-	return string(rt)
-}
-
-func (p ListSharesParameters) getParameters() url.Values {
-	out := url.Values{}
-
-	if p.Prefix != "" {
-		out.Set("prefix", p.Prefix)
-	}
-	if p.Marker != "" {
-		out.Set("marker", p.Marker)
-	}
-	if p.Include != "" {
-		out.Set("include", p.Include)
-	}
-	if p.MaxResults != 0 {
-		out.Set("maxresults", fmt.Sprintf("%v", p.MaxResults))
-	}
-	if p.Timeout != 0 {
-		out.Set("timeout", fmt.Sprintf("%v", p.Timeout))
-	}
-
-	return out
-}
-
-func (p ListDirsAndFilesParameters) getParameters() url.Values {
-	out := url.Values{}
-
-	if p.Marker != "" {
-		out.Set("marker", p.Marker)
-	}
-	if p.MaxResults != 0 {
-		out.Set("maxresults", fmt.Sprintf("%v", p.MaxResults))
-	}
-	if p.Timeout != 0 {
-		out.Set("timeout", fmt.Sprintf("%v", p.Timeout))
-	}
-
-	return out
-}
-
-// returns url.Values for the specified types
-func getURLInitValues(comp compType, res resourceType) url.Values {
-	values := url.Values{}
-	if comp != compNone {
-		values.Set("comp", comp.String())
-	}
-	if res != resourceFile {
-		values.Set("restype", res.String())
-	}
-	return values
-}
-
-// GetShareReference returns a Share object for the specified share name.
-func (f FileServiceClient) GetShareReference(name string) Share {
-	return Share{
-		fsc:  &f,
-		Name: name,
-		Properties: ShareProperties{
-			Quota: -1,
-		},
-	}
-}
-
-// ListShares returns the list of shares in a storage account along with
-// pagination token and other response details.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dd179352.aspx
-func (f FileServiceClient) ListShares(params ListSharesParameters) (*ShareListResponse, error) {
-	q := mergeParams(params.getParameters(), url.Values{"comp": {"list"}})
-
-	var out ShareListResponse
-	resp, err := f.listContent("", q, nil)
-	if err != nil {
-		return nil, err
-	}
-	defer resp.body.Close()
-	err = xmlUnmarshal(resp.body, &out)
-
-	// assign our client to the newly created Share objects
-	for i := range out.Shares {
-		out.Shares[i].fsc = &f
-	}
-	return &out, err
-}
-
-// GetServiceProperties gets the properties of your storage account's file service.
-// File service does not support logging
-// See: https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/get-file-service-properties
-func (f *FileServiceClient) GetServiceProperties() (*ServiceProperties, error) {
-	return f.client.getServiceProperties(fileServiceName, f.auth)
-}
-
-// SetServiceProperties sets the properties of your storage account's file service.
-// File service does not support logging
-// See: https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/set-file-service-properties
-func (f *FileServiceClient) SetServiceProperties(props ServiceProperties) error {
-	return f.client.setServiceProperties(props, fileServiceName, f.auth)
-}
-
-// retrieves directory or share content
-func (f FileServiceClient) listContent(path string, params url.Values, extraHeaders map[string]string) (*storageResponse, error) {
-	if err := f.checkForStorageEmulator(); err != nil {
-		return nil, err
-	}
-
-	uri := f.client.getEndpoint(fileServiceName, path, params)
-	extraHeaders = f.client.protectUserAgent(extraHeaders)
-	headers := mergeHeaders(f.client.getStandardHeaders(), extraHeaders)
-
-	resp, err := f.client.exec(http.MethodGet, uri, headers, nil, f.auth)
-	if err != nil {
-		return nil, err
-	}
-
-	if err = checkRespCode(resp.statusCode, []int{http.StatusOK}); err != nil {
-		readAndCloseBody(resp.body)
-		return nil, err
-	}
-
-	return resp, nil
-}
-
-// returns true if the specified resource exists
-func (f FileServiceClient) resourceExists(path string, res resourceType) (bool, http.Header, error) {
-	if err := f.checkForStorageEmulator(); err != nil {
-		return false, nil, err
-	}
-
-	uri := f.client.getEndpoint(fileServiceName, path, getURLInitValues(compNone, res))
-	headers := f.client.getStandardHeaders()
-
-	resp, err := f.client.exec(http.MethodHead, uri, headers, nil, f.auth)
-	if resp != nil {
-		defer readAndCloseBody(resp.body)
-		if resp.statusCode == http.StatusOK || resp.statusCode == http.StatusNotFound {
-			return resp.statusCode == http.StatusOK, resp.headers, nil
-		}
-	}
-	return false, nil, err
-}
-
-// creates a resource depending on the specified resource type
-func (f FileServiceClient) createResource(path string, res resourceType, urlParams url.Values, extraHeaders map[string]string, expectedResponseCodes []int) (http.Header, error) {
-	resp, err := f.createResourceNoClose(path, res, urlParams, extraHeaders)
-	if err != nil {
-		return nil, err
-	}
-	defer readAndCloseBody(resp.body)
-	return resp.headers, checkRespCode(resp.statusCode, expectedResponseCodes)
-}
-
-// creates a resource depending on the specified resource type, doesn't close the response body
-func (f FileServiceClient) createResourceNoClose(path string, res resourceType, urlParams url.Values, extraHeaders map[string]string) (*storageResponse, error) {
-	if err := f.checkForStorageEmulator(); err != nil {
-		return nil, err
-	}
-
-	values := getURLInitValues(compNone, res)
-	combinedParams := mergeParams(values, urlParams)
-	uri := f.client.getEndpoint(fileServiceName, path, combinedParams)
-	extraHeaders = f.client.protectUserAgent(extraHeaders)
-	headers := mergeHeaders(f.client.getStandardHeaders(), extraHeaders)
-
-	return f.client.exec(http.MethodPut, uri, headers, nil, f.auth)
-}
-
-// returns HTTP header data for the specified directory or share
-func (f FileServiceClient) getResourceHeaders(path string, comp compType, res resourceType, verb string) (http.Header, error) {
-	resp, err := f.getResourceNoClose(path, comp, res, verb, nil)
-	if err != nil {
-		return nil, err
-	}
-	defer readAndCloseBody(resp.body)
-
-	if err = checkRespCode(resp.statusCode, []int{http.StatusOK}); err != nil {
-		return nil, err
-	}
-
-	return resp.headers, nil
-}
-
-// gets the specified resource, doesn't close the response body
-func (f FileServiceClient) getResourceNoClose(path string, comp compType, res resourceType, verb string, extraHeaders map[string]string) (*storageResponse, error) {
-	if err := f.checkForStorageEmulator(); err != nil {
-		return nil, err
-	}
-
-	params := getURLInitValues(comp, res)
-	uri := f.client.getEndpoint(fileServiceName, path, params)
-	extraHeaders = f.client.protectUserAgent(extraHeaders)
-	headers := mergeHeaders(f.client.getStandardHeaders(), extraHeaders)
-
-	return f.client.exec(verb, uri, headers, nil, f.auth)
-}
-
-// deletes the resource and returns the response
-func (f FileServiceClient) deleteResource(path string, res resourceType) error {
-	resp, err := f.deleteResourceNoClose(path, res)
-	if err != nil {
-		return err
-	}
-	defer readAndCloseBody(resp.body)
-	return checkRespCode(resp.statusCode, []int{http.StatusAccepted})
-}
-
-// deletes the resource and returns the response, doesn't close the response body
-func (f FileServiceClient) deleteResourceNoClose(path string, res resourceType) (*storageResponse, error) {
-	if err := f.checkForStorageEmulator(); err != nil {
-		return nil, err
-	}
-
-	values := getURLInitValues(compNone, res)
-	uri := f.client.getEndpoint(fileServiceName, path, values)
-	return f.client.exec(http.MethodDelete, uri, f.client.getStandardHeaders(), nil, f.auth)
-}
-
-// merges metadata into extraHeaders and returns extraHeaders
-func mergeMDIntoExtraHeaders(metadata, extraHeaders map[string]string) map[string]string {
-	if metadata == nil && extraHeaders == nil {
-		return nil
-	}
-	if extraHeaders == nil {
-		extraHeaders = make(map[string]string)
-	}
-	for k, v := range metadata {
-		extraHeaders[userDefinedMetadataHeaderPrefix+k] = v
-	}
-	return extraHeaders
-}
-
-// merges extraHeaders into headers and returns headers
-func mergeHeaders(headers, extraHeaders map[string]string) map[string]string {
-	for k, v := range extraHeaders {
-		headers[k] = v
-	}
-	return headers
-}
-
-// sets extra header data for the specified resource
-func (f FileServiceClient) setResourceHeaders(path string, comp compType, res resourceType, extraHeaders map[string]string) (http.Header, error) {
-	if err := f.checkForStorageEmulator(); err != nil {
-		return nil, err
-	}
-
-	params := getURLInitValues(comp, res)
-	uri := f.client.getEndpoint(fileServiceName, path, params)
-	extraHeaders = f.client.protectUserAgent(extraHeaders)
-	headers := mergeHeaders(f.client.getStandardHeaders(), extraHeaders)
-
-	resp, err := f.client.exec(http.MethodPut, uri, headers, nil, f.auth)
-	if err != nil {
-		return nil, err
-	}
-	defer readAndCloseBody(resp.body)
-
-	return resp.headers, checkRespCode(resp.statusCode, []int{http.StatusOK})
-}
-
-// gets metadata for the specified resource
-func (f FileServiceClient) getMetadata(path string, res resourceType) (map[string]string, error) {
-	if err := f.checkForStorageEmulator(); err != nil {
-		return nil, err
-	}
-
-	headers, err := f.getResourceHeaders(path, compMetadata, res, http.MethodGet)
-	if err != nil {
-		return nil, err
-	}
-
-	return getMetadataFromHeaders(headers), nil
-}
-
-// returns a map of custom metadata values from the specified HTTP header
-func getMetadataFromHeaders(header http.Header) map[string]string {
-	metadata := make(map[string]string)
-	for k, v := range header {
-		// Can't trust CanonicalHeaderKey() to munge case
-		// reliably. "_" is allowed in identifiers:
-		// https://msdn.microsoft.com/en-us/library/azure/dd179414.aspx
-		// https://msdn.microsoft.com/library/aa664670(VS.71).aspx
-		// http://tools.ietf.org/html/rfc7230#section-3.2
-		// ...but "_" is considered invalid by
-		// CanonicalMIMEHeaderKey in
-		// https://golang.org/src/net/textproto/reader.go?s=14615:14659#L542
-		// so k can be "X-Ms-Meta-Foo" or "x-ms-meta-foo_bar".
-		k = strings.ToLower(k)
-		if len(v) == 0 || !strings.HasPrefix(k, strings.ToLower(userDefinedMetadataHeaderPrefix)) {
-			continue
-		}
-		// metadata["foo"] = content of the last X-Ms-Meta-Foo header
-		k = k[len(userDefinedMetadataHeaderPrefix):]
-		metadata[k] = v[len(v)-1]
-	}
-
-	if len(metadata) == 0 {
-		return nil
-	}
-
-	return metadata
-}
-
-//checkForStorageEmulator determines if the client is setup for use with
-//Azure Storage Emulator, and returns a relevant error
-func (f FileServiceClient) checkForStorageEmulator() error {
-	if f.client.accountName == StorageEmulatorAccountName {
-		return fmt.Errorf("Error: File service is not currently supported by Azure Storage Emulator")
-	}
-	return nil
-}

vendor/github.com/Azure/azure-storage-go/glide.lock

@@ -1,14 +0,0 @@
-hash: a97c0c90fe4d23bbd8e5745431f633e75530bb611131b786d76b8e1763bce85e
-updated: 2017-02-23T09:58:57.3701584-08:00
-imports:
-- name: github.com/Azure/go-autorest
-  version: ec5f4903f77ed9927ac95b19ab8e44ada64c1356
-  subpackages:
-  - autorest/azure
-  - autorest
-  - autorest/date
-- name: github.com/dgrijalva/jwt-go
-  version: 2268707a8f0843315e2004ee4f1d021dc08baedf
-testImports:
-- name: gopkg.in/check.v1
-  version: 20d25e2804050c1cd24a7eea1e7a6447dd0e74ec

vendor/github.com/Azure/azure-storage-go/glide.yaml

@@ -1,4 +0,0 @@
-package: github.com/Azure/azure-sdk-for-go-storage
-import: []
-testImport:
-- package: gopkg.in/check.v1

vendor/github.com/Azure/azure-storage-go/queue.go

@@ -1,339 +0,0 @@
-package storage
-
-import (
-	"encoding/xml"
-	"fmt"
-	"net/http"
-	"net/url"
-	"strconv"
-	"strings"
-)
-
-const (
-	// casing is per Golang's http.Header canonicalizing the header names.
-	approximateMessagesCountHeader  = "X-Ms-Approximate-Messages-Count"
-	userDefinedMetadataHeaderPrefix = "X-Ms-Meta-"
-)
-
-func pathForQueue(queue string) string         { return fmt.Sprintf("/%s", queue) }
-func pathForQueueMessages(queue string) string { return fmt.Sprintf("/%s/messages", queue) }
-func pathForMessage(queue, name string) string { return fmt.Sprintf("/%s/messages/%s", queue, name) }
-
-type putMessageRequest struct {
-	XMLName     xml.Name `xml:"QueueMessage"`
-	MessageText string   `xml:"MessageText"`
-}
-
-// PutMessageParameters is the set of options can be specified for Put Messsage
-// operation. A zero struct does not use any preferences for the request.
-type PutMessageParameters struct {
-	VisibilityTimeout int
-	MessageTTL        int
-}
-
-func (p PutMessageParameters) getParameters() url.Values {
-	out := url.Values{}
-	if p.VisibilityTimeout != 0 {
-		out.Set("visibilitytimeout", strconv.Itoa(p.VisibilityTimeout))
-	}
-	if p.MessageTTL != 0 {
-		out.Set("messagettl", strconv.Itoa(p.MessageTTL))
-	}
-	return out
-}
-
-// GetMessagesParameters is the set of options can be specified for Get
-// Messsages operation. A zero struct does not use any preferences for the
-// request.
-type GetMessagesParameters struct {
-	NumOfMessages     int
-	VisibilityTimeout int
-}
-
-func (p GetMessagesParameters) getParameters() url.Values {
-	out := url.Values{}
-	if p.NumOfMessages != 0 {
-		out.Set("numofmessages", strconv.Itoa(p.NumOfMessages))
-	}
-	if p.VisibilityTimeout != 0 {
-		out.Set("visibilitytimeout", strconv.Itoa(p.VisibilityTimeout))
-	}
-	return out
-}
-
-// PeekMessagesParameters is the set of options can be specified for Peek
-// Messsage operation. A zero struct does not use any preferences for the
-// request.
-type PeekMessagesParameters struct {
-	NumOfMessages int
-}
-
-func (p PeekMessagesParameters) getParameters() url.Values {
-	out := url.Values{"peekonly": {"true"}} // Required for peek operation
-	if p.NumOfMessages != 0 {
-		out.Set("numofmessages", strconv.Itoa(p.NumOfMessages))
-	}
-	return out
-}
-
-// UpdateMessageParameters is the set of options can be specified for Update Messsage
-// operation. A zero struct does not use any preferences for the request.
-type UpdateMessageParameters struct {
-	PopReceipt        string
-	VisibilityTimeout int
-}
-
-func (p UpdateMessageParameters) getParameters() url.Values {
-	out := url.Values{}
-	if p.PopReceipt != "" {
-		out.Set("popreceipt", p.PopReceipt)
-	}
-	if p.VisibilityTimeout != 0 {
-		out.Set("visibilitytimeout", strconv.Itoa(p.VisibilityTimeout))
-	}
-	return out
-}
-
-// GetMessagesResponse represents a response returned from Get Messages
-// operation.
-type GetMessagesResponse struct {
-	XMLName           xml.Name             `xml:"QueueMessagesList"`
-	QueueMessagesList []GetMessageResponse `xml:"QueueMessage"`
-}
-
-// GetMessageResponse represents a QueueMessage object returned from Get
-// Messages operation response.
-type GetMessageResponse struct {
-	MessageID       string `xml:"MessageId"`
-	InsertionTime   string `xml:"InsertionTime"`
-	ExpirationTime  string `xml:"ExpirationTime"`
-	PopReceipt      string `xml:"PopReceipt"`
-	TimeNextVisible string `xml:"TimeNextVisible"`
-	DequeueCount    int    `xml:"DequeueCount"`
-	MessageText     string `xml:"MessageText"`
-}
-
-// PeekMessagesResponse represents a response returned from Get Messages
-// operation.
-type PeekMessagesResponse struct {
-	XMLName           xml.Name              `xml:"QueueMessagesList"`
-	QueueMessagesList []PeekMessageResponse `xml:"QueueMessage"`
-}
-
-// PeekMessageResponse represents a QueueMessage object returned from Peek
-// Messages operation response.
-type PeekMessageResponse struct {
-	MessageID      string `xml:"MessageId"`
-	InsertionTime  string `xml:"InsertionTime"`
-	ExpirationTime string `xml:"ExpirationTime"`
-	DequeueCount   int    `xml:"DequeueCount"`
-	MessageText    string `xml:"MessageText"`
-}
-
-// QueueMetadataResponse represents user defined metadata and queue
-// properties on a specific queue.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dd179384.aspx
-type QueueMetadataResponse struct {
-	ApproximateMessageCount int
-	UserDefinedMetadata     map[string]string
-}
-
-// SetMetadata operation sets user-defined metadata on the specified queue.
-// Metadata is associated with the queue as name-value pairs.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dd179348.aspx
-func (c QueueServiceClient) SetMetadata(name string, metadata map[string]string) error {
-	uri := c.client.getEndpoint(queueServiceName, pathForQueue(name), url.Values{"comp": []string{"metadata"}})
-	metadata = c.client.protectUserAgent(metadata)
-	headers := c.client.getStandardHeaders()
-	for k, v := range metadata {
-		headers[userDefinedMetadataHeaderPrefix+k] = v
-	}
-
-	resp, err := c.client.exec(http.MethodPut, uri, headers, nil, c.auth)
-	if err != nil {
-		return err
-	}
-	defer readAndCloseBody(resp.body)
-
-	return checkRespCode(resp.statusCode, []int{http.StatusNoContent})
-}
-
-// GetMetadata operation retrieves user-defined metadata and queue
-// properties on the specified queue. Metadata is associated with
-// the queue as name-values pairs.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dd179384.aspx
-//
-// Because the way Golang's http client (and http.Header in particular)
-// canonicalize header names, the returned metadata names would always
-// be all lower case.
-func (c QueueServiceClient) GetMetadata(name string) (QueueMetadataResponse, error) {
-	qm := QueueMetadataResponse{}
-	qm.UserDefinedMetadata = make(map[string]string)
-	uri := c.client.getEndpoint(queueServiceName, pathForQueue(name), url.Values{"comp": []string{"metadata"}})
-	headers := c.client.getStandardHeaders()
-	resp, err := c.client.exec(http.MethodGet, uri, headers, nil, c.auth)
-	if err != nil {
-		return qm, err
-	}
-	defer readAndCloseBody(resp.body)
-
-	for k, v := range resp.headers {
-		if len(v) != 1 {
-			return qm, fmt.Errorf("Unexpected number of values (%d) in response header '%s'", len(v), k)
-		}
-
-		value := v[0]
-
-		if k == approximateMessagesCountHeader {
-			qm.ApproximateMessageCount, err = strconv.Atoi(value)
-			if err != nil {
-				return qm, fmt.Errorf("Unexpected value in response header '%s': '%s' ", k, value)
-			}
-		} else if strings.HasPrefix(k, userDefinedMetadataHeaderPrefix) {
-			name := strings.TrimPrefix(k, userDefinedMetadataHeaderPrefix)
-			qm.UserDefinedMetadata[strings.ToLower(name)] = value
-		}
-	}
-
-	return qm, checkRespCode(resp.statusCode, []int{http.StatusOK})
-}
-
-// CreateQueue operation creates a queue under the given account.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dd179342.aspx
-func (c QueueServiceClient) CreateQueue(name string) error {
-	uri := c.client.getEndpoint(queueServiceName, pathForQueue(name), url.Values{})
-	headers := c.client.getStandardHeaders()
-	resp, err := c.client.exec(http.MethodPut, uri, headers, nil, c.auth)
-	if err != nil {
-		return err
-	}
-	defer readAndCloseBody(resp.body)
-	return checkRespCode(resp.statusCode, []int{http.StatusCreated})
-}
-
-// DeleteQueue operation permanently deletes the specified queue.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dd179436.aspx
-func (c QueueServiceClient) DeleteQueue(name string) error {
-	uri := c.client.getEndpoint(queueServiceName, pathForQueue(name), url.Values{})
-	resp, err := c.client.exec(http.MethodDelete, uri, c.client.getStandardHeaders(), nil, c.auth)
-	if err != nil {
-		return err
-	}
-	defer readAndCloseBody(resp.body)
-	return checkRespCode(resp.statusCode, []int{http.StatusNoContent})
-}
-
-// QueueExists returns true if a queue with given name exists.
-func (c QueueServiceClient) QueueExists(name string) (bool, error) {
-	uri := c.client.getEndpoint(queueServiceName, pathForQueue(name), url.Values{"comp": {"metadata"}})
-	resp, err := c.client.exec(http.MethodGet, uri, c.client.getStandardHeaders(), nil, c.auth)
-	if resp != nil && (resp.statusCode == http.StatusOK || resp.statusCode == http.StatusNotFound) {
-		return resp.statusCode == http.StatusOK, nil
-	}
-
-	return false, err
-}
-
-// PutMessage operation adds a new message to the back of the message queue.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dd179346.aspx
-func (c QueueServiceClient) PutMessage(queue string, message string, params PutMessageParameters) error {
-	uri := c.client.getEndpoint(queueServiceName, pathForQueueMessages(queue), params.getParameters())
-	req := putMessageRequest{MessageText: message}
-	body, nn, err := xmlMarshal(req)
-	if err != nil {
-		return err
-	}
-	headers := c.client.getStandardHeaders()
-	headers["Content-Length"] = strconv.Itoa(nn)
-	resp, err := c.client.exec(http.MethodPost, uri, headers, body, c.auth)
-	if err != nil {
-		return err
-	}
-	defer readAndCloseBody(resp.body)
-	return checkRespCode(resp.statusCode, []int{http.StatusCreated})
-}
-
-// ClearMessages operation deletes all messages from the specified queue.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dd179454.aspx
-func (c QueueServiceClient) ClearMessages(queue string) error {
-	uri := c.client.getEndpoint(queueServiceName, pathForQueueMessages(queue), url.Values{})
-	resp, err := c.client.exec(http.MethodDelete, uri, c.client.getStandardHeaders(), nil, c.auth)
-	if err != nil {
-		return err
-	}
-	defer readAndCloseBody(resp.body)
-	return checkRespCode(resp.statusCode, []int{http.StatusNoContent})
-}
-
-// GetMessages operation retrieves one or more messages from the front of the
-// queue.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dd179474.aspx
-func (c QueueServiceClient) GetMessages(queue string, params GetMessagesParameters) (GetMessagesResponse, error) {
-	var r GetMessagesResponse
-	uri := c.client.getEndpoint(queueServiceName, pathForQueueMessages(queue), params.getParameters())
-	resp, err := c.client.exec(http.MethodGet, uri, c.client.getStandardHeaders(), nil, c.auth)
-	if err != nil {
-		return r, err
-	}
-	defer resp.body.Close()
-	err = xmlUnmarshal(resp.body, &r)
-	return r, err
-}
-
-// PeekMessages retrieves one or more messages from the front of the queue, but
-// does not alter the visibility of the message.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dd179472.aspx
-func (c QueueServiceClient) PeekMessages(queue string, params PeekMessagesParameters) (PeekMessagesResponse, error) {
-	var r PeekMessagesResponse
-	uri := c.client.getEndpoint(queueServiceName, pathForQueueMessages(queue), params.getParameters())
-	resp, err := c.client.exec(http.MethodGet, uri, c.client.getStandardHeaders(), nil, c.auth)
-	if err != nil {
-		return r, err
-	}
-	defer resp.body.Close()
-	err = xmlUnmarshal(resp.body, &r)
-	return r, err
-}
-
-// DeleteMessage operation deletes the specified message.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dd179347.aspx
-func (c QueueServiceClient) DeleteMessage(queue, messageID, popReceipt string) error {
-	uri := c.client.getEndpoint(queueServiceName, pathForMessage(queue, messageID), url.Values{
-		"popreceipt": {popReceipt}})
-	resp, err := c.client.exec(http.MethodDelete, uri, c.client.getStandardHeaders(), nil, c.auth)
-	if err != nil {
-		return err
-	}
-	defer readAndCloseBody(resp.body)
-	return checkRespCode(resp.statusCode, []int{http.StatusNoContent})
-}
-
-// UpdateMessage operation deletes the specified message.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/hh452234.aspx
-func (c QueueServiceClient) UpdateMessage(queue string, messageID string, message string, params UpdateMessageParameters) error {
-	uri := c.client.getEndpoint(queueServiceName, pathForMessage(queue, messageID), params.getParameters())
-	req := putMessageRequest{MessageText: message}
-	body, nn, err := xmlMarshal(req)
-	if err != nil {
-		return err
-	}
-	headers := c.client.getStandardHeaders()
-	headers["Content-Length"] = fmt.Sprintf("%d", nn)
-	resp, err := c.client.exec(http.MethodPut, uri, headers, body, c.auth)
-	if err != nil {
-		return err
-	}
-	defer readAndCloseBody(resp.body)
-	return checkRespCode(resp.statusCode, []int{http.StatusNoContent})
-}

vendor/github.com/Azure/azure-storage-go/queueserviceclient.go

@@ -1,20 +0,0 @@
-package storage
-
-// QueueServiceClient contains operations for Microsoft Azure Queue Storage
-// Service.
-type QueueServiceClient struct {
-	client Client
-	auth   authentication
-}
-
-// GetServiceProperties gets the properties of your storage account's queue service.
-// See: https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/get-queue-service-properties
-func (c *QueueServiceClient) GetServiceProperties() (*ServiceProperties, error) {
-	return c.client.getServiceProperties(queueServiceName, c.auth)
-}
-
-// SetServiceProperties sets the properties of your storage account's queue service.
-// See: https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/set-queue-service-properties
-func (c *QueueServiceClient) SetServiceProperties(props ServiceProperties) error {
-	return c.client.setServiceProperties(props, queueServiceName, c.auth)
-}

vendor/github.com/Azure/azure-storage-go/share.go

@@ -1,186 +0,0 @@
-package storage
-
-import (
-	"fmt"
-	"net/http"
-	"net/url"
-	"strconv"
-)
-
-// Share represents an Azure file share.
-type Share struct {
-	fsc        *FileServiceClient
-	Name       string          `xml:"Name"`
-	Properties ShareProperties `xml:"Properties"`
-	Metadata   map[string]string
-}
-
-// ShareProperties contains various properties of a share.
-type ShareProperties struct {
-	LastModified string `xml:"Last-Modified"`
-	Etag         string `xml:"Etag"`
-	Quota        int    `xml:"Quota"`
-}
-
-// builds the complete path for this share object.
-func (s *Share) buildPath() string {
-	return fmt.Sprintf("/%s", s.Name)
-}
-
-// Create this share under the associated account.
-// If a share with the same name already exists, the operation fails.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dn167008.aspx
-func (s *Share) Create() error {
-	headers, err := s.fsc.createResource(s.buildPath(), resourceShare, nil, mergeMDIntoExtraHeaders(s.Metadata, nil), []int{http.StatusCreated})
-	if err != nil {
-		return err
-	}
-
-	s.updateEtagAndLastModified(headers)
-	return nil
-}
-
-// CreateIfNotExists creates this share under the associated account if
-// it does not exist. Returns true if the share is newly created or false if
-// the share already exists.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dn167008.aspx
-func (s *Share) CreateIfNotExists() (bool, error) {
-	resp, err := s.fsc.createResourceNoClose(s.buildPath(), resourceShare, nil, nil)
-	if resp != nil {
-		defer readAndCloseBody(resp.body)
-		if resp.statusCode == http.StatusCreated || resp.statusCode == http.StatusConflict {
-			if resp.statusCode == http.StatusCreated {
-				s.updateEtagAndLastModified(resp.headers)
-				return true, nil
-			}
-			return false, s.FetchAttributes()
-		}
-	}
-
-	return false, err
-}
-
-// Delete marks this share for deletion. The share along with any files
-// and directories contained within it are later deleted during garbage
-// collection.  If the share does not exist the operation fails
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dn689090.aspx
-func (s *Share) Delete() error {
-	return s.fsc.deleteResource(s.buildPath(), resourceShare)
-}
-
-// DeleteIfExists operation marks this share for deletion if it exists.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dn689090.aspx
-func (s *Share) DeleteIfExists() (bool, error) {
-	resp, err := s.fsc.deleteResourceNoClose(s.buildPath(), resourceShare)
-	if resp != nil {
-		defer readAndCloseBody(resp.body)
-		if resp.statusCode == http.StatusAccepted || resp.statusCode == http.StatusNotFound {
-			return resp.statusCode == http.StatusAccepted, nil
-		}
-	}
-	return false, err
-}
-
-// Exists returns true if this share already exists
-// on the storage account, otherwise returns false.
-func (s *Share) Exists() (bool, error) {
-	exists, headers, err := s.fsc.resourceExists(s.buildPath(), resourceShare)
-	if exists {
-		s.updateEtagAndLastModified(headers)
-		s.updateQuota(headers)
-	}
-	return exists, err
-}
-
-// FetchAttributes retrieves metadata and properties for this share.
-func (s *Share) FetchAttributes() error {
-	headers, err := s.fsc.getResourceHeaders(s.buildPath(), compNone, resourceShare, http.MethodHead)
-	if err != nil {
-		return err
-	}
-
-	s.updateEtagAndLastModified(headers)
-	s.updateQuota(headers)
-	s.Metadata = getMetadataFromHeaders(headers)
-
-	return nil
-}
-
-// GetRootDirectoryReference returns a Directory object at the root of this share.
-func (s *Share) GetRootDirectoryReference() *Directory {
-	return &Directory{
-		fsc:   s.fsc,
-		share: s,
-	}
-}
-
-// ServiceClient returns the FileServiceClient associated with this share.
-func (s *Share) ServiceClient() *FileServiceClient {
-	return s.fsc
-}
-
-// SetMetadata replaces the metadata for this share.
-//
-// Some keys may be converted to Camel-Case before sending. All keys
-// are returned in lower case by GetShareMetadata. HTTP header names
-// are case-insensitive so case munging should not matter to other
-// applications either.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/dd179414.aspx
-func (s *Share) SetMetadata() error {
-	headers, err := s.fsc.setResourceHeaders(s.buildPath(), compMetadata, resourceShare, mergeMDIntoExtraHeaders(s.Metadata, nil))
-	if err != nil {
-		return err
-	}
-
-	s.updateEtagAndLastModified(headers)
-	return nil
-}
-
-// SetProperties sets system properties for this share.
-//
-// Some keys may be converted to Camel-Case before sending. All keys
-// are returned in lower case by SetShareProperties. HTTP header names
-// are case-insensitive so case munging should not matter to other
-// applications either.
-//
-// See https://msdn.microsoft.com/en-us/library/azure/mt427368.aspx
-func (s *Share) SetProperties() error {
-	if s.Properties.Quota < 1 || s.Properties.Quota > 5120 {
-		return fmt.Errorf("invalid value %v for quota, valid values are [1, 5120]", s.Properties.Quota)
-	}
-
-	headers, err := s.fsc.setResourceHeaders(s.buildPath(), compProperties, resourceShare, map[string]string{
-		"x-ms-share-quota": strconv.Itoa(s.Properties.Quota),
-	})
-	if err != nil {
-		return err
-	}
-
-	s.updateEtagAndLastModified(headers)
-	return nil
-}
-
-// updates Etag and last modified date
-func (s *Share) updateEtagAndLastModified(headers http.Header) {
-	s.Properties.Etag = headers.Get("Etag")
-	s.Properties.LastModified = headers.Get("Last-Modified")
-}
-
-// updates quota value
-func (s *Share) updateQuota(headers http.Header) {
-	quota, err := strconv.Atoi(headers.Get("x-ms-share-quota"))
-	if err == nil {
-		s.Properties.Quota = quota
-	}
-}
-
-// URL gets the canonical URL to this share. This method does not create a publicly accessible
-// URL if the share is private and this method does not check if the share exists.
-func (s *Share) URL() string {
-	return s.fsc.client.getEndpoint(fileServiceName, s.buildPath(), url.Values{})
-}

vendor/github.com/Azure/azure-storage-go/storagepolicy.go

@@ -1,47 +0,0 @@
-package storage
-
-import (
-	"strings"
-	"time"
-)
-
-// AccessPolicyDetailsXML has specifics about an access policy
-// annotated with XML details.
-type AccessPolicyDetailsXML struct {
-	StartTime  time.Time `xml:"Start"`
-	ExpiryTime time.Time `xml:"Expiry"`
-	Permission string    `xml:"Permission"`
-}
-
-// SignedIdentifier is a wrapper for a specific policy
-type SignedIdentifier struct {
-	ID           string                 `xml:"Id"`
-	AccessPolicy AccessPolicyDetailsXML `xml:"AccessPolicy"`
-}
-
-// SignedIdentifiers part of the response from GetPermissions call.
-type SignedIdentifiers struct {
-	SignedIdentifiers []SignedIdentifier `xml:"SignedIdentifier"`
-}
-
-// AccessPolicy is the response type from the GetPermissions call.
-type AccessPolicy struct {
-	SignedIdentifiersList SignedIdentifiers `xml:"SignedIdentifiers"`
-}
-
-// convertAccessPolicyToXMLStructs converts between AccessPolicyDetails which is a struct better for API usage to the
-// AccessPolicy struct which will get converted to XML.
-func convertAccessPolicyToXMLStructs(id string, startTime time.Time, expiryTime time.Time, permissions string) SignedIdentifier {
-	return SignedIdentifier{
-		ID: id,
-		AccessPolicy: AccessPolicyDetailsXML{
-			StartTime:  startTime.UTC().Round(time.Second),
-			ExpiryTime: expiryTime.UTC().Round(time.Second),
-			Permission: permissions,
-		},
-	}
-}
-
-func updatePermissions(permissions, permission string) bool {
-	return strings.Contains(permissions, permission)
-}

vendor/github.com/Azure/azure-storage-go/storageservice.go

@@ -1,118 +0,0 @@
-package storage
-
-import (
-	"fmt"
-	"net/http"
-	"net/url"
-)
-
-// ServiceProperties represents the storage account service properties
-type ServiceProperties struct {
-	Logging       *Logging
-	HourMetrics   *Metrics
-	MinuteMetrics *Metrics
-	Cors          *Cors
-}
-
-// Logging represents the Azure Analytics Logging settings
-type Logging struct {
-	Version         string
-	Delete          bool
-	Read            bool
-	Write           bool
-	RetentionPolicy *RetentionPolicy
-}
-
-// RetentionPolicy indicates if retention is enabled and for how many days
-type RetentionPolicy struct {
-	Enabled bool
-	Days    *int
-}
-
-// Metrics provide request statistics.
-type Metrics struct {
-	Version         string
-	Enabled         bool
-	IncludeAPIs     *bool
-	RetentionPolicy *RetentionPolicy
-}
-
-// Cors includes all the CORS rules
-type Cors struct {
-	CorsRule []CorsRule
-}
-
-// CorsRule includes all settings for a Cors rule
-type CorsRule struct {
-	AllowedOrigins  string
-	AllowedMethods  string
-	MaxAgeInSeconds int
-	ExposedHeaders  string
-	AllowedHeaders  string
-}
-
-func (c Client) getServiceProperties(service string, auth authentication) (*ServiceProperties, error) {
-	query := url.Values{
-		"restype": {"service"},
-		"comp":    {"properties"},
-	}
-	uri := c.getEndpoint(service, "", query)
-	headers := c.getStandardHeaders()
-
-	resp, err := c.exec(http.MethodGet, uri, headers, nil, auth)
-	if err != nil {
-		return nil, err
-	}
-	defer resp.body.Close()
-
-	if err := checkRespCode(resp.statusCode, []int{http.StatusOK}); err != nil {
-		return nil, err
-	}
-
-	var out ServiceProperties
-	err = xmlUnmarshal(resp.body, &out)
-	if err != nil {
-		return nil, err
-	}
-
-	return &out, nil
-}
-
-func (c Client) setServiceProperties(props ServiceProperties, service string, auth authentication) error {
-	query := url.Values{
-		"restype": {"service"},
-		"comp":    {"properties"},
-	}
-	uri := c.getEndpoint(service, "", query)
-
-	// Ideally, StorageServiceProperties would be the output struct
-	// This is to avoid golint stuttering, while generating the correct XML
-	type StorageServiceProperties struct {
-		Logging       *Logging
-		HourMetrics   *Metrics
-		MinuteMetrics *Metrics
-		Cors          *Cors
-	}
-	input := StorageServiceProperties{
-		Logging:       props.Logging,
-		HourMetrics:   props.HourMetrics,
-		MinuteMetrics: props.MinuteMetrics,
-		Cors:          props.Cors,
-	}
-
-	body, length, err := xmlMarshal(input)
-	if err != nil {
-		return err
-	}
-
-	headers := c.getStandardHeaders()
-	headers["Content-Length"] = fmt.Sprintf("%v", length)
-
-	resp, err := c.exec(http.MethodPut, uri, headers, body, auth)
-	if err != nil {
-		return err
-	}
-	defer readAndCloseBody(resp.body)
-
-	return checkRespCode(resp.statusCode, []int{http.StatusAccepted})
-}

vendor/github.com/Azure/azure-storage-go/table.go

@@ -1,254 +0,0 @@
-package storage
-
-import (
-	"bytes"
-	"encoding/json"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"net/http"
-	"net/url"
-	"strconv"
-	"time"
-)
-
-// AzureTable is the typedef of the Azure Table name
-type AzureTable string
-
-const (
-	tablesURIPath = "/Tables"
-)
-
-type createTableRequest struct {
-	TableName string `json:"TableName"`
-}
-
-// TableAccessPolicy are used for SETTING table policies
-type TableAccessPolicy struct {
-	ID         string
-	StartTime  time.Time
-	ExpiryTime time.Time
-	CanRead    bool
-	CanAppend  bool
-	CanUpdate  bool
-	CanDelete  bool
-}
-
-func pathForTable(table AzureTable) string { return fmt.Sprintf("%s", table) }
-
-func (c *TableServiceClient) getStandardHeaders() map[string]string {
-	return map[string]string{
-		"x-ms-version":   "2015-02-21",
-		"x-ms-date":      currentTimeRfc1123Formatted(),
-		"Accept":         "application/json;odata=nometadata",
-		"Accept-Charset": "UTF-8",
-		"Content-Type":   "application/json",
-		userAgentHeader:  c.client.userAgent,
-	}
-}
-
-// QueryTables returns the tables created in the
-// *TableServiceClient storage account.
-func (c *TableServiceClient) QueryTables() ([]AzureTable, error) {
-	uri := c.client.getEndpoint(tableServiceName, tablesURIPath, url.Values{})
-
-	headers := c.getStandardHeaders()
-	headers["Content-Length"] = "0"
-
-	resp, err := c.client.execInternalJSON(http.MethodGet, uri, headers, nil, c.auth)
-	if err != nil {
-		return nil, err
-	}
-	defer resp.body.Close()
-
-	if err := checkRespCode(resp.statusCode, []int{http.StatusOK}); err != nil {
-		ioutil.ReadAll(resp.body)
-		return nil, err
-	}
-
-	buf := new(bytes.Buffer)
-	if _, err := buf.ReadFrom(resp.body); err != nil {
-		return nil, err
-	}
-
-	var respArray queryTablesResponse
-	if err := json.Unmarshal(buf.Bytes(), &respArray); err != nil {
-		return nil, err
-	}
-
-	s := make([]AzureTable, len(respArray.TableName))
-	for i, elem := range respArray.TableName {
-		s[i] = AzureTable(elem.TableName)
-	}
-
-	return s, nil
-}
-
-// CreateTable creates the table given the specific
-// name. This function fails if the name is not compliant
-// with the specification or the tables already exists.
-func (c *TableServiceClient) CreateTable(table AzureTable) error {
-	uri := c.client.getEndpoint(tableServiceName, tablesURIPath, url.Values{})
-
-	headers := c.getStandardHeaders()
-
-	req := createTableRequest{TableName: string(table)}
-	buf := new(bytes.Buffer)
-
-	if err := json.NewEncoder(buf).Encode(req); err != nil {
-		return err
-	}
-
-	headers["Content-Length"] = fmt.Sprintf("%d", buf.Len())
-
-	resp, err := c.client.execInternalJSON(http.MethodPost, uri, headers, buf, c.auth)
-
-	if err != nil {
-		return err
-	}
-	defer readAndCloseBody(resp.body)
-
-	if err := checkRespCode(resp.statusCode, []int{http.StatusCreated}); err != nil {
-		return err
-	}
-
-	return nil
-}
-
-// DeleteTable deletes the table given the specific
-// name. This function fails if the table is not present.
-// Be advised: DeleteTable deletes all the entries
-// that may be present.
-func (c *TableServiceClient) DeleteTable(table AzureTable) error {
-	uri := c.client.getEndpoint(tableServiceName, tablesURIPath, url.Values{})
-	uri += fmt.Sprintf("('%s')", string(table))
-
-	headers := c.getStandardHeaders()
-
-	headers["Content-Length"] = "0"
-
-	resp, err := c.client.execInternalJSON(http.MethodDelete, uri, headers, nil, c.auth)
-
-	if err != nil {
-		return err
-	}
-	defer readAndCloseBody(resp.body)
-
-	if err := checkRespCode(resp.statusCode, []int{http.StatusNoContent}); err != nil {
-		return err
-
-	}
-	return nil
-}
-
-// SetTablePermissions sets up table ACL permissions as per REST details https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/Set-Table-ACL
-func (c *TableServiceClient) SetTablePermissions(table AzureTable, policies []TableAccessPolicy, timeout uint) (err error) {
-	params := url.Values{"comp": {"acl"}}
-
-	if timeout > 0 {
-		params.Add("timeout", fmt.Sprint(timeout))
-	}
-
-	uri := c.client.getEndpoint(tableServiceName, string(table), params)
-	headers := c.client.getStandardHeaders()
-
-	body, length, err := generateTableACLPayload(policies)
-	if err != nil {
-		return err
-	}
-	headers["Content-Length"] = fmt.Sprintf("%v", length)
-
-	resp, err := c.client.execInternalJSON(http.MethodPut, uri, headers, body, c.auth)
-	if err != nil {
-		return err
-	}
-	defer readAndCloseBody(resp.body)
-
-	if err := checkRespCode(resp.statusCode, []int{http.StatusNoContent}); err != nil {
-		return err
-	}
-	return nil
-}
-
-func generateTableACLPayload(policies []TableAccessPolicy) (io.Reader, int, error) {
-	sil := SignedIdentifiers{
-		SignedIdentifiers: []SignedIdentifier{},
-	}
-	for _, tap := range policies {
-		permission := generateTablePermissions(&tap)
-		signedIdentifier := convertAccessPolicyToXMLStructs(tap.ID, tap.StartTime, tap.ExpiryTime, permission)
-		sil.SignedIdentifiers = append(sil.SignedIdentifiers, signedIdentifier)
-	}
-	return xmlMarshal(sil)
-}
-
-// GetTablePermissions gets the table ACL permissions, as per REST details https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/get-table-acl
-func (c *TableServiceClient) GetTablePermissions(table AzureTable, timeout int) (permissionResponse []TableAccessPolicy, err error) {
-	params := url.Values{"comp": {"acl"}}
-
-	if timeout > 0 {
-		params.Add("timeout", strconv.Itoa(timeout))
-	}
-
-	uri := c.client.getEndpoint(tableServiceName, string(table), params)
-	headers := c.client.getStandardHeaders()
-	resp, err := c.client.execInternalJSON(http.MethodGet, uri, headers, nil, c.auth)
-	if err != nil {
-		return nil, err
-	}
-	defer resp.body.Close()
-
-	if err = checkRespCode(resp.statusCode, []int{http.StatusOK}); err != nil {
-		ioutil.ReadAll(resp.body)
-		return nil, err
-	}
-
-	var ap AccessPolicy
-	err = xmlUnmarshal(resp.body, &ap.SignedIdentifiersList)
-	if err != nil {
-		return nil, err
-	}
-	out := updateTableAccessPolicy(ap)
-	return out, nil
-}
-
-func updateTableAccessPolicy(ap AccessPolicy) []TableAccessPolicy {
-	out := []TableAccessPolicy{}
-	for _, policy := range ap.SignedIdentifiersList.SignedIdentifiers {
-		tap := TableAccessPolicy{
-			ID:         policy.ID,
-			StartTime:  policy.AccessPolicy.StartTime,
-			ExpiryTime: policy.AccessPolicy.ExpiryTime,
-		}
-		tap.CanRead = updatePermissions(policy.AccessPolicy.Permission, "r")
-		tap.CanAppend = updatePermissions(policy.AccessPolicy.Permission, "a")
-		tap.CanUpdate = updatePermissions(policy.AccessPolicy.Permission, "u")
-		tap.CanDelete = updatePermissions(policy.AccessPolicy.Permission, "d")
-
-		out = append(out, tap)
-	}
-	return out
-}
-
-func generateTablePermissions(tap *TableAccessPolicy) (permissions string) {
-	// generate the permissions string (raud).
-	// still want the end user API to have bool flags.
-	permissions = ""
-
-	if tap.CanRead {
-		permissions += "r"
-	}
-
-	if tap.CanAppend {
-		permissions += "a"
-	}
-
-	if tap.CanUpdate {
-		permissions += "u"
-	}
-
-	if tap.CanDelete {
-		permissions += "d"
-	}
-	return permissions
-}

vendor/github.com/Azure/azure-storage-go/table_entities.go

@@ -1,354 +0,0 @@
-package storage
-
-import (
-	"bytes"
-	"encoding/json"
-	"fmt"
-	"io"
-	"net/http"
-	"net/url"
-	"reflect"
-)
-
-// Annotating as secure for gas scanning
-/* #nosec */
-const (
-	partitionKeyNode                    = "PartitionKey"
-	rowKeyNode                          = "RowKey"
-	tag                                 = "table"
-	tagIgnore                           = "-"
-	continuationTokenPartitionKeyHeader = "X-Ms-Continuation-Nextpartitionkey"
-	continuationTokenRowHeader          = "X-Ms-Continuation-Nextrowkey"
-	maxTopParameter                     = 1000
-)
-
-type queryTablesResponse struct {
-	TableName []struct {
-		TableName string `json:"TableName"`
-	} `json:"value"`
-}
-
-const (
-	tableOperationTypeInsert          = iota
-	tableOperationTypeUpdate          = iota
-	tableOperationTypeMerge           = iota
-	tableOperationTypeInsertOrReplace = iota
-	tableOperationTypeInsertOrMerge   = iota
-)
-
-type tableOperation int
-
-// TableEntity interface specifies
-// the functions needed to support
-// marshaling and unmarshaling into
-// Azure Tables. The struct must only contain
-// simple types because Azure Tables do not
-// support hierarchy.
-type TableEntity interface {
-	PartitionKey() string
-	RowKey() string
-	SetPartitionKey(string) error
-	SetRowKey(string) error
-}
-
-// ContinuationToken is an opaque (ie not useful to inspect)
-// struct that Get... methods can return if there are more
-// entries to be returned than the ones already
-// returned. Just pass it to the same function to continue
-// receiving the remaining entries.
-type ContinuationToken struct {
-	NextPartitionKey string
-	NextRowKey       string
-}
-
-type getTableEntriesResponse struct {
-	Elements []map[string]interface{} `json:"value"`
-}
-
-// QueryTableEntities queries the specified table and returns the unmarshaled
-// entities of type retType.
-// top parameter limits the returned entries up to top. Maximum top
-// allowed by Azure API is 1000. In case there are more than top entries to be
-// returned the function will return a non nil *ContinuationToken. You can call the
-// same function again passing the received ContinuationToken as previousContToken
-// parameter in order to get the following entries. The query parameter
-// is the odata query. To retrieve all the entries pass the empty string.
-// The function returns a pointer to a TableEntity slice, the *ContinuationToken
-// if there are more entries to be returned and an error in case something went
-// wrong.
-//
-// Example:
-// 		entities, cToken, err = tSvc.QueryTableEntities("table", cToken, reflect.TypeOf(entity), 20, "")
-func (c *TableServiceClient) QueryTableEntities(tableName AzureTable, previousContToken *ContinuationToken, retType reflect.Type, top int, query string) ([]TableEntity, *ContinuationToken, error) {
-	if top > maxTopParameter {
-		return nil, nil, fmt.Errorf("top accepts at maximum %d elements. Requested %d instead", maxTopParameter, top)
-	}
-
-	uri := c.client.getEndpoint(tableServiceName, pathForTable(tableName), url.Values{})
-	uri += fmt.Sprintf("?$top=%d", top)
-	if query != "" {
-		uri += fmt.Sprintf("&$filter=%s", url.QueryEscape(query))
-	}
-
-	if previousContToken != nil {
-		uri += fmt.Sprintf("&NextPartitionKey=%s&NextRowKey=%s", previousContToken.NextPartitionKey, previousContToken.NextRowKey)
-	}
-
-	headers := c.getStandardHeaders()
-
-	headers["Content-Length"] = "0"
-
-	resp, err := c.client.execInternalJSON(http.MethodGet, uri, headers, nil, c.auth)
-
-	if err != nil {
-		return nil, nil, err
-	}
-
-	contToken := extractContinuationTokenFromHeaders(resp.headers)
-
-	defer resp.body.Close()
-
-	if err = checkRespCode(resp.statusCode, []int{http.StatusOK}); err != nil {
-		return nil, contToken, err
-	}
-
-	retEntries, err := deserializeEntity(retType, resp.body)
-	if err != nil {
-		return nil, contToken, err
-	}
-
-	return retEntries, contToken, nil
-}
-
-// InsertEntity inserts an entity in the specified table.
-// The function fails if there is an entity with the same
-// PartitionKey and RowKey in the table.
-func (c *TableServiceClient) InsertEntity(table AzureTable, entity TableEntity) error {
-	sc, err := c.execTable(table, entity, false, http.MethodPost)
-	if err != nil {
-		return err
-	}
-
-	return checkRespCode(sc, []int{http.StatusCreated})
-}
-
-func (c *TableServiceClient) execTable(table AzureTable, entity TableEntity, specifyKeysInURL bool, method string) (int, error) {
-	uri := c.client.getEndpoint(tableServiceName, pathForTable(table), url.Values{})
-	if specifyKeysInURL {
-		uri += fmt.Sprintf("(PartitionKey='%s',RowKey='%s')", url.QueryEscape(entity.PartitionKey()), url.QueryEscape(entity.RowKey()))
-	}
-
-	headers := c.getStandardHeaders()
-
-	var buf bytes.Buffer
-
-	if err := injectPartitionAndRowKeys(entity, &buf); err != nil {
-		return 0, err
-	}
-
-	headers["Content-Length"] = fmt.Sprintf("%d", buf.Len())
-
-	resp, err := c.client.execInternalJSON(method, uri, headers, &buf, c.auth)
-
-	if err != nil {
-		return 0, err
-	}
-
-	defer resp.body.Close()
-
-	return resp.statusCode, nil
-}
-
-// UpdateEntity updates the contents of an entity with the
-// one passed as parameter. The function fails if there is no entity
-// with the same PartitionKey and RowKey in the table.
-func (c *TableServiceClient) UpdateEntity(table AzureTable, entity TableEntity) error {
-	sc, err := c.execTable(table, entity, true, http.MethodPut)
-	if err != nil {
-		return err
-	}
-
-	return checkRespCode(sc, []int{http.StatusNoContent})
-}
-
-// MergeEntity merges the contents of an entity with the
-// one passed as parameter.
-// The function fails if there is no entity
-// with the same PartitionKey and RowKey in the table.
-func (c *TableServiceClient) MergeEntity(table AzureTable, entity TableEntity) error {
-	sc, err := c.execTable(table, entity, true, "MERGE")
-	if err != nil {
-		return err
-	}
-
-	return checkRespCode(sc, []int{http.StatusNoContent})
-}
-
-// DeleteEntityWithoutCheck deletes the entity matching by
-// PartitionKey and RowKey. There is no check on IfMatch
-// parameter so the entity is always deleted.
-// The function fails if there is no entity
-// with the same PartitionKey and RowKey in the table.
-func (c *TableServiceClient) DeleteEntityWithoutCheck(table AzureTable, entity TableEntity) error {
-	return c.DeleteEntity(table, entity, "*")
-}
-
-// DeleteEntity deletes the entity matching by
-// PartitionKey, RowKey and ifMatch field.
-// The function fails if there is no entity
-// with the same PartitionKey and RowKey in the table or
-// the ifMatch is different.
-func (c *TableServiceClient) DeleteEntity(table AzureTable, entity TableEntity, ifMatch string) error {
-	uri := c.client.getEndpoint(tableServiceName, pathForTable(table), url.Values{})
-	uri += fmt.Sprintf("(PartitionKey='%s',RowKey='%s')", url.QueryEscape(entity.PartitionKey()), url.QueryEscape(entity.RowKey()))
-
-	headers := c.getStandardHeaders()
-
-	headers["Content-Length"] = "0"
-	headers["If-Match"] = ifMatch
-
-	resp, err := c.client.execInternalJSON(http.MethodDelete, uri, headers, nil, c.auth)
-
-	if err != nil {
-		return err
-	}
-	defer resp.body.Close()
-
-	if err := checkRespCode(resp.statusCode, []int{http.StatusNoContent}); err != nil {
-		return err
-	}
-
-	return nil
-}
-
-// InsertOrReplaceEntity inserts an entity in the specified table
-// or replaced the existing one.
-func (c *TableServiceClient) InsertOrReplaceEntity(table AzureTable, entity TableEntity) error {
-	sc, err := c.execTable(table, entity, true, http.MethodPut)
-	if err != nil {
-		return err
-	}
-
-	return checkRespCode(sc, []int{http.StatusNoContent})
-}
-
-// InsertOrMergeEntity inserts an entity in the specified table
-// or merges the existing one.
-func (c *TableServiceClient) InsertOrMergeEntity(table AzureTable, entity TableEntity) error {
-	sc, err := c.execTable(table, entity, true, "MERGE")
-	if err != nil {
-		return err
-	}
-
-	return checkRespCode(sc, []int{http.StatusNoContent})
-}
-
-func injectPartitionAndRowKeys(entity TableEntity, buf *bytes.Buffer) error {
-	if err := json.NewEncoder(buf).Encode(entity); err != nil {
-		return err
-	}
-
-	dec := make(map[string]interface{})
-	if err := json.NewDecoder(buf).Decode(&dec); err != nil {
-		return err
-	}
-
-	// Inject PartitionKey and RowKey
-	dec[partitionKeyNode] = entity.PartitionKey()
-	dec[rowKeyNode] = entity.RowKey()
-
-	// Remove tagged fields
-	// The tag is defined in the const section
-	// This is useful to avoid storing the PartitionKey and RowKey twice.
-	numFields := reflect.ValueOf(entity).Elem().NumField()
-	for i := 0; i < numFields; i++ {
-		f := reflect.ValueOf(entity).Elem().Type().Field(i)
-
-		if f.Tag.Get(tag) == tagIgnore {
-			// we must look for its JSON name in the dictionary
-			// as the user can rename it using a tag
-			jsonName := f.Name
-			if f.Tag.Get("json") != "" {
-				jsonName = f.Tag.Get("json")
-			}
-			delete(dec, jsonName)
-		}
-	}
-
-	buf.Reset()
-
-	if err := json.NewEncoder(buf).Encode(&dec); err != nil {
-		return err
-	}
-
-	return nil
-}
-
-func deserializeEntity(retType reflect.Type, reader io.Reader) ([]TableEntity, error) {
-	buf := new(bytes.Buffer)
-
-	var ret getTableEntriesResponse
-	if err := json.NewDecoder(reader).Decode(&ret); err != nil {
-		return nil, err
-	}
-
-	tEntries := make([]TableEntity, len(ret.Elements))
-
-	for i, entry := range ret.Elements {
-
-		buf.Reset()
-		if err := json.NewEncoder(buf).Encode(entry); err != nil {
-			return nil, err
-		}
-
-		dec := make(map[string]interface{})
-		if err := json.NewDecoder(buf).Decode(&dec); err != nil {
-			return nil, err
-		}
-
-		var pKey, rKey string
-		// strip pk and rk
-		for key, val := range dec {
-			switch key {
-			case partitionKeyNode:
-				pKey = val.(string)
-			case rowKeyNode:
-				rKey = val.(string)
-			}
-		}
-
-		delete(dec, partitionKeyNode)
-		delete(dec, rowKeyNode)
-
-		buf.Reset()
-		if err := json.NewEncoder(buf).Encode(dec); err != nil {
-			return nil, err
-		}
-
-		// Create a empty retType instance
-		tEntries[i] = reflect.New(retType.Elem()).Interface().(TableEntity)
-		// Popolate it with the values
-		if err := json.NewDecoder(buf).Decode(&tEntries[i]); err != nil {
-			return nil, err
-		}
-
-		// Reset PartitionKey and RowKey
-		if err := tEntries[i].SetPartitionKey(pKey); err != nil {
-			return nil, err
-		}
-		if err := tEntries[i].SetRowKey(rKey); err != nil {
-			return nil, err
-		}
-	}
-
-	return tEntries, nil
-}
-
-func extractContinuationTokenFromHeaders(h http.Header) *ContinuationToken {
-	ct := ContinuationToken{h.Get(continuationTokenPartitionKeyHeader), h.Get(continuationTokenRowHeader)}
-
-	if ct.NextPartitionKey != "" && ct.NextRowKey != "" {
-		return &ct
-	}
-	return nil
-}

vendor/github.com/Azure/azure-storage-go/tableserviceclient.go

@@ -1,20 +0,0 @@
-package storage
-
-// TableServiceClient contains operations for Microsoft Azure Table Storage
-// Service.
-type TableServiceClient struct {
-	client Client
-	auth   authentication
-}
-
-// GetServiceProperties gets the properties of your storage account's table service.
-// See: https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/get-table-service-properties
-func (c *TableServiceClient) GetServiceProperties() (*ServiceProperties, error) {
-	return c.client.getServiceProperties(tableServiceName, c.auth)
-}
-
-// SetServiceProperties sets the properties of your storage account's table service.
-// See: https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/set-table-service-properties
-func (c *TableServiceClient) SetServiceProperties(props ServiceProperties) error {
-	return c.client.setServiceProperties(props, tableServiceName, c.auth)
-}

vendor/github.com/Azure/azure-storage-go/util.go

@@ -1,85 +0,0 @@
-package storage
-
-import (
-	"bytes"
-	"crypto/hmac"
-	"crypto/sha256"
-	"encoding/base64"
-	"encoding/xml"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"net/http"
-	"net/url"
-	"reflect"
-	"time"
-)
-
-func (c Client) computeHmac256(message string) string {
-	h := hmac.New(sha256.New, c.accountKey)
-	h.Write([]byte(message))
-	return base64.StdEncoding.EncodeToString(h.Sum(nil))
-}
-
-func currentTimeRfc1123Formatted() string {
-	return timeRfc1123Formatted(time.Now().UTC())
-}
-
-func timeRfc1123Formatted(t time.Time) string {
-	return t.Format(http.TimeFormat)
-}
-
-func mergeParams(v1, v2 url.Values) url.Values {
-	out := url.Values{}
-	for k, v := range v1 {
-		out[k] = v
-	}
-	for k, v := range v2 {
-		vals, ok := out[k]
-		if ok {
-			vals = append(vals, v...)
-			out[k] = vals
-		} else {
-			out[k] = v
-		}
-	}
-	return out
-}
-
-func prepareBlockListRequest(blocks []Block) string {
-	s := `<?xml version="1.0" encoding="utf-8"?><BlockList>`
-	for _, v := range blocks {
-		s += fmt.Sprintf("<%s>%s</%s>", v.Status, v.ID, v.Status)
-	}
-	s += `</BlockList>`
-	return s
-}
-
-func xmlUnmarshal(body io.Reader, v interface{}) error {
-	data, err := ioutil.ReadAll(body)
-	if err != nil {
-		return err
-	}
-	return xml.Unmarshal(data, v)
-}
-
-func xmlMarshal(v interface{}) (io.Reader, int, error) {
-	b, err := xml.Marshal(v)
-	if err != nil {
-		return nil, 0, err
-	}
-	return bytes.NewReader(b), len(b), nil
-}
-
-func headersFromStruct(v interface{}) map[string]string {
-	headers := make(map[string]string)
-	value := reflect.ValueOf(v)
-	for i := 0; i < value.NumField(); i++ {
-		key := value.Type().Field(i).Tag.Get("header")
-		val := value.Field(i).String()
-		if key != "" && val != "" {
-			headers[key] = val
-		}
-	}
-	return headers
-}

vendor/github.com/Azure/azure-storage-go/version.go

@@ -1,5 +0,0 @@
-package storage
-
-var (
-	sdkVersion = "0.1.0"
-)

vendor/github.com/Azure/go-autorest/LICENSE

@@ -1,191 +0,0 @@
-
-                                 Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-   1. Definitions.
-
-      "License" shall mean the terms and conditions for use, reproduction,
-      and distribution as defined by Sections 1 through 9 of this document.
-
-      "Licensor" shall mean the copyright owner or entity authorized by
-      the copyright owner that is granting the License.
-
-      "Legal Entity" shall mean the union of the acting entity and all
-      other entities that control, are controlled by, or are under common
-      control with that entity. For the purposes of this definition,
-      "control" means (i) the power, direct or indirect, to cause the
-      direction or management of such entity, whether by contract or
-      otherwise, or (ii) ownership of fifty percent (50%) or more of the
-      outstanding shares, or (iii) beneficial ownership of such entity.
-
-      "You" (or "Your") shall mean an individual or Legal Entity
-      exercising permissions granted by this License.
-
-      "Source" form shall mean the preferred form for making modifications,
-      including but not limited to software source code, documentation
-      source, and configuration files.
-
-      "Object" form shall mean any form resulting from mechanical
-      transformation or translation of a Source form, including but
-      not limited to compiled object code, generated documentation,
-      and conversions to other media types.
-
-      "Work" shall mean the work of authorship, whether in Source or
-      Object form, made available under the License, as indicated by a
-      copyright notice that is included in or attached to the work
-      (an example is provided in the Appendix below).
-
-      "Derivative Works" shall mean any work, whether in Source or Object
-      form, that is based on (or derived from) the Work and for which the
-      editorial revisions, annotations, elaborations, or other modifications
-      represent, as a whole, an original work of authorship. For the purposes
-      of this License, Derivative Works shall not include works that remain
-      separable from, or merely link (or bind by name) to the interfaces of,
-      the Work and Derivative Works thereof.
-
-      "Contribution" shall mean any work of authorship, including
-      the original version of the Work and any modifications or additions
-      to that Work or Derivative Works thereof, that is intentionally
-      submitted to Licensor for inclusion in the Work by the copyright owner
-      or by an individual or Legal Entity authorized to submit on behalf of
-      the copyright owner. For the purposes of this definition, "submitted"
-      means any form of electronic, verbal, or written communication sent
-      to the Licensor or its representatives, including but not limited to
-      communication on electronic mailing lists, source code control systems,
-      and issue tracking systems that are managed by, or on behalf of, the
-      Licensor for the purpose of discussing and improving the Work, but
-      excluding communication that is conspicuously marked or otherwise
-      designated in writing by the copyright owner as "Not a Contribution."
-
-      "Contributor" shall mean Licensor and any individual or Legal Entity
-      on behalf of whom a Contribution has been received by Licensor and
-      subsequently incorporated within the Work.
-
-   2. Grant of Copyright License. Subject to the terms and conditions of
-      this License, each Contributor hereby grants to You a perpetual,
-      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
-      copyright license to reproduce, prepare Derivative Works of,
-      publicly display, publicly perform, sublicense, and distribute the
-      Work and such Derivative Works in Source or Object form.
-
-   3. Grant of Patent License. Subject to the terms and conditions of
-      this License, each Contributor hereby grants to You a perpetual,
-      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
-      (except as stated in this section) patent license to make, have made,
-      use, offer to sell, sell, import, and otherwise transfer the Work,
-      where such license applies only to those patent claims licensable
-      by such Contributor that are necessarily infringed by their
-      Contribution(s) alone or by combination of their Contribution(s)
-      with the Work to which such Contribution(s) was submitted. If You
-      institute patent litigation against any entity (including a
-      cross-claim or counterclaim in a lawsuit) alleging that the Work
-      or a Contribution incorporated within the Work constitutes direct
-      or contributory patent infringement, then any patent licenses
-      granted to You under this License for that Work shall terminate
-      as of the date such litigation is filed.
-
-   4. Redistribution. You may reproduce and distribute copies of the
-      Work or Derivative Works thereof in any medium, with or without
-      modifications, and in Source or Object form, provided that You
-      meet the following conditions:
-
-      (a) You must give any other recipients of the Work or
-          Derivative Works a copy of this License; and
-
-      (b) You must cause any modified files to carry prominent notices
-          stating that You changed the files; and
-
-      (c) You must retain, in the Source form of any Derivative Works
-          that You distribute, all copyright, patent, trademark, and
-          attribution notices from the Source form of the Work,
-          excluding those notices that do not pertain to any part of
-          the Derivative Works; and
-
-      (d) If the Work includes a "NOTICE" text file as part of its
-          distribution, then any Derivative Works that You distribute must
-          include a readable copy of the attribution notices contained
-          within such NOTICE file, excluding those notices that do not
-          pertain to any part of the Derivative Works, in at least one
-          of the following places: within a NOTICE text file distributed
-          as part of the Derivative Works; within the Source form or
-          documentation, if provided along with the Derivative Works; or,
-          within a display generated by the Derivative Works, if and
-          wherever such third-party notices normally appear. The contents
-          of the NOTICE file are for informational purposes only and
-          do not modify the License. You may add Your own attribution
-          notices within Derivative Works that You distribute, alongside
-          or as an addendum to the NOTICE text from the Work, provided
-          that such additional attribution notices cannot be construed
-          as modifying the License.
-
-      You may add Your own copyright statement to Your modifications and
-      may provide additional or different license terms and conditions
-      for use, reproduction, or distribution of Your modifications, or
-      for any such Derivative Works as a whole, provided Your use,
-      reproduction, and distribution of the Work otherwise complies with
-      the conditions stated in this License.
-
-   5. Submission of Contributions. Unless You explicitly state otherwise,
-      any Contribution intentionally submitted for inclusion in the Work
-      by You to the Licensor shall be under the terms and conditions of
-      this License, without any additional terms or conditions.
-      Notwithstanding the above, nothing herein shall supersede or modify
-      the terms of any separate license agreement you may have executed
-      with Licensor regarding such Contributions.
-
-   6. Trademarks. This License does not grant permission to use the trade
-      names, trademarks, service marks, or product names of the Licensor,
-      except as required for reasonable and customary use in describing the
-      origin of the Work and reproducing the content of the NOTICE file.
-
-   7. Disclaimer of Warranty. Unless required by applicable law or
-      agreed to in writing, Licensor provides the Work (and each
-      Contributor provides its Contributions) on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
-      implied, including, without limitation, any warranties or conditions
-      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
-      PARTICULAR PURPOSE. You are solely responsible for determining the
-      appropriateness of using or redistributing the Work and assume any
-      risks associated with Your exercise of permissions under this License.
-
-   8. Limitation of Liability. In no event and under no legal theory,
-      whether in tort (including negligence), contract, or otherwise,
-      unless required by applicable law (such as deliberate and grossly
-      negligent acts) or agreed to in writing, shall any Contributor be
-      liable to You for damages, including any direct, indirect, special,
-      incidental, or consequential damages of any character arising as a
-      result of this License or out of the use or inability to use the
-      Work (including but not limited to damages for loss of goodwill,
-      work stoppage, computer failure or malfunction, or any and all
-      other commercial damages or losses), even if such Contributor
-      has been advised of the possibility of such damages.
-
-   9. Accepting Warranty or Additional Liability. While redistributing
-      the Work or Derivative Works thereof, You may choose to offer,
-      and charge a fee for, acceptance of support, warranty, indemnity,
-      or other liability obligations and/or rights consistent with this
-      License. However, in accepting such obligations, You may act only
-      on Your own behalf and on Your sole responsibility, not on behalf
-      of any other Contributor, and only if You agree to indemnify,
-      defend, and hold each Contributor harmless for any liability
-      incurred by, or claims asserted against, such Contributor by reason
-      of your accepting any such warranty or additional liability.
-
-   END OF TERMS AND CONDITIONS
-
-   Copyright 2015 Microsoft Corporation
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.

vendor/github.com/Azure/go-autorest/autorest/autorest.go

@@ -1,115 +0,0 @@
-/*
-Package autorest implements an HTTP request pipeline suitable for use across multiple go-routines
-and provides the shared routines relied on by AutoRest (see https://github.com/Azure/autorest/)
-generated Go code.
-
-The package breaks sending and responding to HTTP requests into three phases: Preparing, Sending,
-and Responding. A typical pattern is:
-
-  req, err := Prepare(&http.Request{},
-    token.WithAuthorization())
-
-  resp, err := Send(req,
-    WithLogging(logger),
-    DoErrorIfStatusCode(http.StatusInternalServerError),
-    DoCloseIfError(),
-    DoRetryForAttempts(5, time.Second))
-
-  err = Respond(resp,
-    ByDiscardingBody(),
-    ByClosing())
-
-Each phase relies on decorators to modify and / or manage processing. Decorators may first modify
-and then pass the data along, pass the data first and then modify the result, or wrap themselves
-around passing the data (such as a logger might do). Decorators run in the order provided. For
-example, the following:
-
-  req, err := Prepare(&http.Request{},
-    WithBaseURL("https://microsoft.com/"),
-    WithPath("a"),
-    WithPath("b"),
-    WithPath("c"))
-
-will set the URL to:
-
-  https://microsoft.com/a/b/c
-
-Preparers and Responders may be shared and re-used (assuming the underlying decorators support
-sharing and re-use). Performant use is obtained by creating one or more Preparers and Responders
-shared among multiple go-routines, and a single Sender shared among multiple sending go-routines,
-all bound together by means of input / output channels.
-
-Decorators hold their passed state within a closure (such as the path components in the example
-above). Be careful to share Preparers and Responders only in a context where such held state
-applies. For example, it may not make sense to share a Preparer that applies a query string from a
-fixed set of values. Similarly, sharing a Responder that reads the response body into a passed
-struct (e.g., ByUnmarshallingJson) is likely incorrect.
-
-Lastly, the Swagger specification (https://swagger.io) that drives AutoRest
-(https://github.com/Azure/autorest/) precisely defines two date forms: date and date-time. The
-github.com/Azure/go-autorest/autorest/date package provides time.Time derivations to ensure
-correct parsing and formatting.
-
-Errors raised by autorest objects and methods will conform to the autorest.Error interface.
-
-See the included examples for more detail. For details on the suggested use of this package by
-generated clients, see the Client described below.
-*/
-package autorest
-
-import (
-	"net/http"
-	"time"
-)
-
-const (
-	// HeaderLocation specifies the HTTP Location header.
-	HeaderLocation = "Location"
-
-	// HeaderRetryAfter specifies the HTTP Retry-After header.
-	HeaderRetryAfter = "Retry-After"
-)
-
-// ResponseHasStatusCode returns true if the status code in the HTTP Response is in the passed set
-// and false otherwise.
-func ResponseHasStatusCode(resp *http.Response, codes ...int) bool {
-	return containsInt(codes, resp.StatusCode)
-}
-
-// GetLocation retrieves the URL from the Location header of the passed response.
-func GetLocation(resp *http.Response) string {
-	return resp.Header.Get(HeaderLocation)
-}
-
-// GetRetryAfter extracts the retry delay from the Retry-After header of the passed response. If
-// the header is absent or is malformed, it will return the supplied default delay time.Duration.
-func GetRetryAfter(resp *http.Response, defaultDelay time.Duration) time.Duration {
-	retry := resp.Header.Get(HeaderRetryAfter)
-	if retry == "" {
-		return defaultDelay
-	}
-
-	d, err := time.ParseDuration(retry + "s")
-	if err != nil {
-		return defaultDelay
-	}
-
-	return d
-}
-
-// NewPollingRequest allocates and returns a new http.Request to poll for the passed response.
-func NewPollingRequest(resp *http.Response, cancel <-chan struct{}) (*http.Request, error) {
-	location := GetLocation(resp)
-	if location == "" {
-		return nil, NewErrorWithResponse("autorest", "NewPollingRequest", resp, "Location header missing from response that requires polling")
-	}
-
-	req, err := Prepare(&http.Request{Cancel: cancel},
-		AsGet(),
-		WithBaseURL(location))
-	if err != nil {
-		return nil, NewErrorWithError(err, "autorest", "NewPollingRequest", nil, "Failure creating poll request to %s", location)
-	}
-
-	return req, nil
-}

vendor/github.com/Azure/go-autorest/autorest/azure/async.go

@@ -1,308 +0,0 @@
-package azure
-
-import (
-	"bytes"
-	"fmt"
-	"io/ioutil"
-	"net/http"
-	"strings"
-	"time"
-
-	"github.com/Azure/go-autorest/autorest"
-	"github.com/Azure/go-autorest/autorest/date"
-)
-
-const (
-	headerAsyncOperation = "Azure-AsyncOperation"
-)
-
-const (
-	methodDelete = "DELETE"
-	methodPatch  = "PATCH"
-	methodPost   = "POST"
-	methodPut    = "PUT"
-	methodGet    = "GET"
-
-	operationInProgress string = "InProgress"
-	operationCanceled   string = "Canceled"
-	operationFailed     string = "Failed"
-	operationSucceeded  string = "Succeeded"
-)
-
-// DoPollForAsynchronous returns a SendDecorator that polls if the http.Response is for an Azure
-// long-running operation. It will delay between requests for the duration specified in the
-// RetryAfter header or, if the header is absent, the passed delay. Polling may be canceled by
-// closing the optional channel on the http.Request.
-func DoPollForAsynchronous(delay time.Duration) autorest.SendDecorator {
-	return func(s autorest.Sender) autorest.Sender {
-		return autorest.SenderFunc(func(r *http.Request) (resp *http.Response, err error) {
-			resp, err = s.Do(r)
-			if err != nil {
-				return resp, err
-			}
-			pollingCodes := []int{http.StatusAccepted, http.StatusCreated, http.StatusOK}
-			if !autorest.ResponseHasStatusCode(resp, pollingCodes...) {
-				return resp, nil
-			}
-
-			ps := pollingState{}
-			for err == nil {
-				err = updatePollingState(resp, &ps)
-				if err != nil {
-					break
-				}
-				if ps.hasTerminated() {
-					if !ps.hasSucceeded() {
-						err = ps
-					}
-					break
-				}
-
-				r, err = newPollingRequest(resp, ps)
-				if err != nil {
-					return resp, err
-				}
-
-				delay = autorest.GetRetryAfter(resp, delay)
-				resp, err = autorest.SendWithSender(s, r,
-					autorest.AfterDelay(delay))
-			}
-
-			return resp, err
-		})
-	}
-}
-
-func getAsyncOperation(resp *http.Response) string {
-	return resp.Header.Get(http.CanonicalHeaderKey(headerAsyncOperation))
-}
-
-func hasSucceeded(state string) bool {
-	return state == operationSucceeded
-}
-
-func hasTerminated(state string) bool {
-	switch state {
-	case operationCanceled, operationFailed, operationSucceeded:
-		return true
-	default:
-		return false
-	}
-}
-
-func hasFailed(state string) bool {
-	return state == operationFailed
-}
-
-type provisioningTracker interface {
-	state() string
-	hasSucceeded() bool
-	hasTerminated() bool
-}
-
-type operationResource struct {
-	// Note:
-	// 	The specification states services should return the "id" field. However some return it as
-	// 	"operationId".
-	ID              string                 `json:"id"`
-	OperationID     string                 `json:"operationId"`
-	Name            string                 `json:"name"`
-	Status          string                 `json:"status"`
-	Properties      map[string]interface{} `json:"properties"`
-	OperationError  ServiceError           `json:"error"`
-	StartTime       date.Time              `json:"startTime"`
-	EndTime         date.Time              `json:"endTime"`
-	PercentComplete float64                `json:"percentComplete"`
-}
-
-func (or operationResource) state() string {
-	return or.Status
-}
-
-func (or operationResource) hasSucceeded() bool {
-	return hasSucceeded(or.state())
-}
-
-func (or operationResource) hasTerminated() bool {
-	return hasTerminated(or.state())
-}
-
-type provisioningProperties struct {
-	ProvisioningState string `json:"provisioningState"`
-}
-
-type provisioningStatus struct {
-	Properties        provisioningProperties `json:"properties,omitempty"`
-	ProvisioningError ServiceError           `json:"error,omitempty"`
-}
-
-func (ps provisioningStatus) state() string {
-	return ps.Properties.ProvisioningState
-}
-
-func (ps provisioningStatus) hasSucceeded() bool {
-	return hasSucceeded(ps.state())
-}
-
-func (ps provisioningStatus) hasTerminated() bool {
-	return hasTerminated(ps.state())
-}
-
-func (ps provisioningStatus) hasProvisioningError() bool {
-	return ps.ProvisioningError != ServiceError{}
-}
-
-type pollingResponseFormat string
-
-const (
-	usesOperationResponse  pollingResponseFormat = "OperationResponse"
-	usesProvisioningStatus pollingResponseFormat = "ProvisioningStatus"
-	formatIsUnknown        pollingResponseFormat = ""
-)
-
-type pollingState struct {
-	responseFormat pollingResponseFormat
-	uri            string
-	state          string
-	code           string
-	message        string
-}
-
-func (ps pollingState) hasSucceeded() bool {
-	return hasSucceeded(ps.state)
-}
-
-func (ps pollingState) hasTerminated() bool {
-	return hasTerminated(ps.state)
-}
-
-func (ps pollingState) hasFailed() bool {
-	return hasFailed(ps.state)
-}
-
-func (ps pollingState) Error() string {
-	return fmt.Sprintf("Long running operation terminated with status '%s': Code=%q Message=%q", ps.state, ps.code, ps.message)
-}
-
-//	updatePollingState maps the operation status -- retrieved from either a provisioningState
-// 	field, the status field of an OperationResource, or inferred from the HTTP status code --
-// 	into a well-known states. Since the process begins from the initial request, the state
-//	always comes from either a the provisioningState returned or is inferred from the HTTP
-//	status code. Subsequent requests will read an Azure OperationResource object if the
-//	service initially returned the Azure-AsyncOperation header. The responseFormat field notes
-//	the expected response format.
-func updatePollingState(resp *http.Response, ps *pollingState) error {
-	// Determine the response shape
-	// -- The first response will always be a provisioningStatus response; only the polling requests,
-	//    depending on the header returned, may be something otherwise.
-	var pt provisioningTracker
-	if ps.responseFormat == usesOperationResponse {
-		pt = &operationResource{}
-	} else {
-		pt = &provisioningStatus{}
-	}
-
-	// If this is the first request (that is, the polling response shape is unknown), determine how
-	// to poll and what to expect
-	if ps.responseFormat == formatIsUnknown {
-		req := resp.Request
-		if req == nil {
-			return autorest.NewError("azure", "updatePollingState", "Azure Polling Error - Original HTTP request is missing")
-		}
-
-		// Prefer the Azure-AsyncOperation header
-		ps.uri = getAsyncOperation(resp)
-		if ps.uri != "" {
-			ps.responseFormat = usesOperationResponse
-		} else {
-			ps.responseFormat = usesProvisioningStatus
-		}
-
-		// Else, use the Location header
-		if ps.uri == "" {
-			ps.uri = autorest.GetLocation(resp)
-		}
-
-		// Lastly, requests against an existing resource, use the last request URI
-		if ps.uri == "" {
-			m := strings.ToUpper(req.Method)
-			if m == methodPatch || m == methodPut || m == methodGet {
-				ps.uri = req.URL.String()
-			}
-		}
-	}
-
-	// Read and interpret the response (saving the Body in case no polling is necessary)
-	b := &bytes.Buffer{}
-	err := autorest.Respond(resp,
-		autorest.ByCopying(b),
-		autorest.ByUnmarshallingJSON(pt),
-		autorest.ByClosing())
-	resp.Body = ioutil.NopCloser(b)
-	if err != nil {
-		return err
-	}
-
-	// Interpret the results
-	// -- Terminal states apply regardless
-	// -- Unknown states are per-service inprogress states
-	// -- Otherwise, infer state from HTTP status code
-	if pt.hasTerminated() {
-		ps.state = pt.state()
-	} else if pt.state() != "" {
-		ps.state = operationInProgress
-	} else {
-		switch resp.StatusCode {
-		case http.StatusAccepted:
-			ps.state = operationInProgress
-
-		case http.StatusNoContent, http.StatusCreated, http.StatusOK:
-			ps.state = operationSucceeded
-
-		default:
-			ps.state = operationFailed
-		}
-	}
-
-	if ps.state == operationInProgress && ps.uri == "" {
-		return autorest.NewError("azure", "updatePollingState", "Azure Polling Error - Unable to obtain polling URI for %s %s", resp.Request.Method, resp.Request.URL)
-	}
-
-	// For failed operation, check for error code and message in
-	// -- Operation resource
-	// -- Response
-	// -- Otherwise, Unknown
-	if ps.hasFailed() {
-		if ps.responseFormat == usesOperationResponse {
-			or := pt.(*operationResource)
-			ps.code = or.OperationError.Code
-			ps.message = or.OperationError.Message
-		} else {
-			p := pt.(*provisioningStatus)
-			if p.hasProvisioningError() {
-				ps.code = p.ProvisioningError.Code
-				ps.message = p.ProvisioningError.Message
-			} else {
-				ps.code = "Unknown"
-				ps.message = "None"
-			}
-		}
-	}
-	return nil
-}
-
-func newPollingRequest(resp *http.Response, ps pollingState) (*http.Request, error) {
-	req := resp.Request
-	if req == nil {
-		return nil, autorest.NewError("azure", "newPollingRequest", "Azure Polling Error - Original HTTP request is missing")
-	}
-
-	reqPoll, err := autorest.Prepare(&http.Request{Cancel: req.Cancel},
-		autorest.AsGet(),
-		autorest.WithBaseURL(ps.uri))
-	if err != nil {
-		return nil, autorest.NewErrorWithError(err, "azure", "newPollingRequest", nil, "Failure creating poll request to %s", ps.uri)
-	}
-
-	return reqPoll, nil
-}

vendor/github.com/Azure/go-autorest/autorest/azure/azure.go

@@ -1,180 +0,0 @@
-/*
-Package azure provides Azure-specific implementations used with AutoRest.
-
-See the included examples for more detail.
-*/
-package azure
-
-import (
-	"encoding/json"
-	"fmt"
-	"io/ioutil"
-	"net/http"
-	"strconv"
-
-	"github.com/Azure/go-autorest/autorest"
-)
-
-const (
-	// HeaderClientID is the Azure extension header to set a user-specified request ID.
-	HeaderClientID = "x-ms-client-request-id"
-
-	// HeaderReturnClientID is the Azure extension header to set if the user-specified request ID
-	// should be included in the response.
-	HeaderReturnClientID = "x-ms-return-client-request-id"
-
-	// HeaderRequestID is the Azure extension header of the service generated request ID returned
-	// in the response.
-	HeaderRequestID = "x-ms-request-id"
-)
-
-// ServiceError encapsulates the error response from an Azure service.
-type ServiceError struct {
-	Code    string         `json:"code"`
-	Message string         `json:"message"`
-	Details *[]interface{} `json:"details"`
-}
-
-func (se ServiceError) Error() string {
-	if se.Details != nil {
-		d, err := json.Marshal(*(se.Details))
-		if err != nil {
-			return fmt.Sprintf("Code=%q Message=%q Details=%v", se.Code, se.Message, *se.Details)
-		}
-		return fmt.Sprintf("Code=%q Message=%q Details=%v", se.Code, se.Message, string(d))
-	}
-	return fmt.Sprintf("Code=%q Message=%q", se.Code, se.Message)
-}
-
-// RequestError describes an error response returned by Azure service.
-type RequestError struct {
-	autorest.DetailedError
-
-	// The error returned by the Azure service.
-	ServiceError *ServiceError `json:"error"`
-
-	// The request id (from the x-ms-request-id-header) of the request.
-	RequestID string
-}
-
-// Error returns a human-friendly error message from service error.
-func (e RequestError) Error() string {
-	return fmt.Sprintf("autorest/azure: Service returned an error. Status=%v %v",
-		e.StatusCode, e.ServiceError)
-}
-
-// IsAzureError returns true if the passed error is an Azure Service error; false otherwise.
-func IsAzureError(e error) bool {
-	_, ok := e.(*RequestError)
-	return ok
-}
-
-// NewErrorWithError creates a new Error conforming object from the
-// passed packageType, method, statusCode of the given resp (UndefinedStatusCode
-// if resp is nil), message, and original error. message is treated as a format
-// string to which the optional args apply.
-func NewErrorWithError(original error, packageType string, method string, resp *http.Response, message string, args ...interface{}) RequestError {
-	if v, ok := original.(*RequestError); ok {
-		return *v
-	}
-
-	statusCode := autorest.UndefinedStatusCode
-	if resp != nil {
-		statusCode = resp.StatusCode
-	}
-	return RequestError{
-		DetailedError: autorest.DetailedError{
-			Original:    original,
-			PackageType: packageType,
-			Method:      method,
-			StatusCode:  statusCode,
-			Message:     fmt.Sprintf(message, args...),
-		},
-	}
-}
-
-// WithReturningClientID returns a PrepareDecorator that adds an HTTP extension header of
-// x-ms-client-request-id whose value is the passed, undecorated UUID (e.g.,
-// "0F39878C-5F76-4DB8-A25D-61D2C193C3CA"). It also sets the x-ms-return-client-request-id
-// header to true such that UUID accompanies the http.Response.
-func WithReturningClientID(uuid string) autorest.PrepareDecorator {
-	preparer := autorest.CreatePreparer(
-		WithClientID(uuid),
-		WithReturnClientID(true))
-
-	return func(p autorest.Preparer) autorest.Preparer {
-		return autorest.PreparerFunc(func(r *http.Request) (*http.Request, error) {
-			r, err := p.Prepare(r)
-			if err != nil {
-				return r, err
-			}
-			return preparer.Prepare(r)
-		})
-	}
-}
-
-// WithClientID returns a PrepareDecorator that adds an HTTP extension header of
-// x-ms-client-request-id whose value is passed, undecorated UUID (e.g.,
-// "0F39878C-5F76-4DB8-A25D-61D2C193C3CA").
-func WithClientID(uuid string) autorest.PrepareDecorator {
-	return autorest.WithHeader(HeaderClientID, uuid)
-}
-
-// WithReturnClientID returns a PrepareDecorator that adds an HTTP extension header of
-// x-ms-return-client-request-id whose boolean value indicates if the value of the
-// x-ms-client-request-id header should be included in the http.Response.
-func WithReturnClientID(b bool) autorest.PrepareDecorator {
-	return autorest.WithHeader(HeaderReturnClientID, strconv.FormatBool(b))
-}
-
-// ExtractClientID extracts the client identifier from the x-ms-client-request-id header set on the
-// http.Request sent to the service (and returned in the http.Response)
-func ExtractClientID(resp *http.Response) string {
-	return autorest.ExtractHeaderValue(HeaderClientID, resp)
-}
-
-// ExtractRequestID extracts the Azure server generated request identifier from the
-// x-ms-request-id header.
-func ExtractRequestID(resp *http.Response) string {
-	return autorest.ExtractHeaderValue(HeaderRequestID, resp)
-}
-
-// WithErrorUnlessStatusCode returns a RespondDecorator that emits an
-// azure.RequestError by reading the response body unless the response HTTP status code
-// is among the set passed.
-//
-// If there is a chance service may return responses other than the Azure error
-// format and the response cannot be parsed into an error, a decoding error will
-// be returned containing the response body. In any case, the Responder will
-// return an error if the status code is not satisfied.
-//
-// If this Responder returns an error, the response body will be replaced with
-// an in-memory reader, which needs no further closing.
-func WithErrorUnlessStatusCode(codes ...int) autorest.RespondDecorator {
-	return func(r autorest.Responder) autorest.Responder {
-		return autorest.ResponderFunc(func(resp *http.Response) error {
-			err := r.Respond(resp)
-			if err == nil && !autorest.ResponseHasStatusCode(resp, codes...) {
-				var e RequestError
-				defer resp.Body.Close()
-
-				// Copy and replace the Body in case it does not contain an error object.
-				// This will leave the Body available to the caller.
-				b, decodeErr := autorest.CopyAndDecode(autorest.EncodedAsJSON, resp.Body, &e)
-				resp.Body = ioutil.NopCloser(&b)
-				if decodeErr != nil {
-					return fmt.Errorf("autorest/azure: error response cannot be parsed: %q error: %v", b.String(), decodeErr)
-				} else if e.ServiceError == nil {
-					e.ServiceError = &ServiceError{Code: "Unknown", Message: "Unknown service error"}
-				}
-
-				e.RequestID = ExtractRequestID(resp)
-				if e.StatusCode == nil {
-					e.StatusCode = resp.StatusCode
-				}
-				err = &e
-			}
-			return err
-		})
-	}
-}

vendor/github.com/Azure/go-autorest/autorest/azure/config.go

@@ -1,13 +0,0 @@
-package azure
-
-import (
-	"net/url"
-)
-
-// OAuthConfig represents the endpoints needed
-// in OAuth operations
-type OAuthConfig struct {
-	AuthorizeEndpoint  url.URL
-	TokenEndpoint      url.URL
-	DeviceCodeEndpoint url.URL
-}

vendor/github.com/Azure/go-autorest/autorest/azure/devicetoken.go

@@ -1,193 +0,0 @@
-package azure
-
-/*
-  This file is largely based on rjw57/oauth2device's code, with the follow differences:
-   * scope -> resource, and only allow a single one
-   * receive "Message" in the DeviceCode struct and show it to users as the prompt
-   * azure-xplat-cli has the following behavior that this emulates:
-     - does not send client_secret during the token exchange
-     - sends resource again in the token exchange request
-*/
-
-import (
-	"fmt"
-	"net/http"
-	"net/url"
-	"time"
-
-	"github.com/Azure/go-autorest/autorest"
-)
-
-const (
-	logPrefix = "autorest/azure/devicetoken:"
-)
-
-var (
-	// ErrDeviceGeneric represents an unknown error from the token endpoint when using device flow
-	ErrDeviceGeneric = fmt.Errorf("%s Error while retrieving OAuth token: Unknown Error", logPrefix)
-
-	// ErrDeviceAccessDenied represents an access denied error from the token endpoint when using device flow
-	ErrDeviceAccessDenied = fmt.Errorf("%s Error while retrieving OAuth token: Access Denied", logPrefix)
-
-	// ErrDeviceAuthorizationPending represents the server waiting on the user to complete the device flow
-	ErrDeviceAuthorizationPending = fmt.Errorf("%s Error while retrieving OAuth token: Authorization Pending", logPrefix)
-
-	// ErrDeviceCodeExpired represents the server timing out and expiring the code during device flow
-	ErrDeviceCodeExpired = fmt.Errorf("%s Error while retrieving OAuth token: Code Expired", logPrefix)
-
-	// ErrDeviceSlowDown represents the service telling us we're polling too often during device flow
-	ErrDeviceSlowDown = fmt.Errorf("%s Error while retrieving OAuth token: Slow Down", logPrefix)
-
-	errCodeSendingFails   = "Error occurred while sending request for Device Authorization Code"
-	errCodeHandlingFails  = "Error occurred while handling response from the Device Endpoint"
-	errTokenSendingFails  = "Error occurred while sending request with device code for a token"
-	errTokenHandlingFails = "Error occurred while handling response from the Token Endpoint (during device flow)"
-)
-
-// DeviceCode is the object returned by the device auth endpoint
-// It contains information to instruct the user to complete the auth flow
-type DeviceCode struct {
-	DeviceCode      *string `json:"device_code,omitempty"`
-	UserCode        *string `json:"user_code,omitempty"`
-	VerificationURL *string `json:"verification_url,omitempty"`
-	ExpiresIn       *int64  `json:"expires_in,string,omitempty"`
-	Interval        *int64  `json:"interval,string,omitempty"`
-
-	Message     *string `json:"message"` // Azure specific
-	Resource    string  // store the following, stored when initiating, used when exchanging
-	OAuthConfig OAuthConfig
-	ClientID    string
-}
-
-// TokenError is the object returned by the token exchange endpoint
-// when something is amiss
-type TokenError struct {
-	Error            *string `json:"error,omitempty"`
-	ErrorCodes       []int   `json:"error_codes,omitempty"`
-	ErrorDescription *string `json:"error_description,omitempty"`
-	Timestamp        *string `json:"timestamp,omitempty"`
-	TraceID          *string `json:"trace_id,omitempty"`
-}
-
-// DeviceToken is the object return by the token exchange endpoint
-// It can either look like a Token or an ErrorToken, so put both here
-// and check for presence of "Error" to know if we are in error state
-type deviceToken struct {
-	Token
-	TokenError
-}
-
-// InitiateDeviceAuth initiates a device auth flow. It returns a DeviceCode
-// that can be used with CheckForUserCompletion or WaitForUserCompletion.
-func InitiateDeviceAuth(client *autorest.Client, oauthConfig OAuthConfig, clientID, resource string) (*DeviceCode, error) {
-	req, _ := autorest.Prepare(
-		&http.Request{},
-		autorest.AsPost(),
-		autorest.AsFormURLEncoded(),
-		autorest.WithBaseURL(oauthConfig.DeviceCodeEndpoint.String()),
-		autorest.WithFormData(url.Values{
-			"client_id": []string{clientID},
-			"resource":  []string{resource},
-		}),
-	)
-
-	resp, err := autorest.SendWithSender(client, req)
-	if err != nil {
-		return nil, fmt.Errorf("%s %s: %s", logPrefix, errCodeSendingFails, err)
-	}
-
-	var code DeviceCode
-	err = autorest.Respond(
-		resp,
-		autorest.WithErrorUnlessStatusCode(http.StatusOK),
-		autorest.ByUnmarshallingJSON(&code),
-		autorest.ByClosing())
-	if err != nil {
-		return nil, fmt.Errorf("%s %s: %s", logPrefix, errCodeHandlingFails, err)
-	}
-
-	code.ClientID = clientID
-	code.Resource = resource
-	code.OAuthConfig = oauthConfig
-
-	return &code, nil
-}
-
-// CheckForUserCompletion takes a DeviceCode and checks with the Azure AD OAuth endpoint
-// to see if the device flow has: been completed, timed out, or otherwise failed
-func CheckForUserCompletion(client *autorest.Client, code *DeviceCode) (*Token, error) {
-	req, _ := autorest.Prepare(
-		&http.Request{},
-		autorest.AsPost(),
-		autorest.AsFormURLEncoded(),
-		autorest.WithBaseURL(code.OAuthConfig.TokenEndpoint.String()),
-		autorest.WithFormData(url.Values{
-			"client_id":  []string{code.ClientID},
-			"code":       []string{*code.DeviceCode},
-			"grant_type": []string{OAuthGrantTypeDeviceCode},
-			"resource":   []string{code.Resource},
-		}),
-	)
-
-	resp, err := autorest.SendWithSender(client, req)
-	if err != nil {
-		return nil, fmt.Errorf("%s %s: %s", logPrefix, errTokenSendingFails, err)
-	}
-
-	var token deviceToken
-	err = autorest.Respond(
-		resp,
-		autorest.WithErrorUnlessStatusCode(http.StatusOK, http.StatusBadRequest),
-		autorest.ByUnmarshallingJSON(&token),
-		autorest.ByClosing())
-	if err != nil {
-		return nil, fmt.Errorf("%s %s: %s", logPrefix, errTokenHandlingFails, err)
-	}
-
-	if token.Error == nil {
-		return &token.Token, nil
-	}
-
-	switch *token.Error {
-	case "authorization_pending":
-		return nil, ErrDeviceAuthorizationPending
-	case "slow_down":
-		return nil, ErrDeviceSlowDown
-	case "access_denied":
-		return nil, ErrDeviceAccessDenied
-	case "code_expired":
-		return nil, ErrDeviceCodeExpired
-	default:
-		return nil, ErrDeviceGeneric
-	}
-}
-
-// WaitForUserCompletion calls CheckForUserCompletion repeatedly until a token is granted or an error state occurs.
-// This prevents the user from looping and checking against 'ErrDeviceAuthorizationPending'.
-func WaitForUserCompletion(client *autorest.Client, code *DeviceCode) (*Token, error) {
-	intervalDuration := time.Duration(*code.Interval) * time.Second
-	waitDuration := intervalDuration
-
-	for {
-		token, err := CheckForUserCompletion(client, code)
-
-		if err == nil {
-			return token, nil
-		}
-
-		switch err {
-		case ErrDeviceSlowDown:
-			waitDuration += waitDuration
-		case ErrDeviceAuthorizationPending:
-			// noop
-		default: // everything else is "fatal" to us
-			return nil, err
-		}
-
-		if waitDuration > (intervalDuration * 3) {
-			return nil, fmt.Errorf("%s Error waiting for user to complete device flow. Server told us to slow_down too much", logPrefix)
-		}
-
-		time.Sleep(waitDuration)
-	}
-}

vendor/github.com/Azure/go-autorest/autorest/azure/environments.go

@@ -1,167 +0,0 @@
-package azure
-
-import (
-	"fmt"
-	"net/url"
-	"strings"
-)
-
-const (
-	activeDirectoryAPIVersion = "1.0"
-)
-
-var environments = map[string]Environment{
-	"AZURECHINACLOUD":        ChinaCloud,
-	"AZUREGERMANCLOUD":       GermanCloud,
-	"AZUREPUBLICCLOUD":       PublicCloud,
-	"AZUREUSGOVERNMENTCLOUD": USGovernmentCloud,
-}
-
-// Environment represents a set of endpoints for each of Azure's Clouds.
-type Environment struct {
-	Name                         string `json:"name"`
-	ManagementPortalURL          string `json:"managementPortalURL"`
-	PublishSettingsURL           string `json:"publishSettingsURL"`
-	ServiceManagementEndpoint    string `json:"serviceManagementEndpoint"`
-	ResourceManagerEndpoint      string `json:"resourceManagerEndpoint"`
-	ActiveDirectoryEndpoint      string `json:"activeDirectoryEndpoint"`
-	GalleryEndpoint              string `json:"galleryEndpoint"`
-	KeyVaultEndpoint             string `json:"keyVaultEndpoint"`
-	GraphEndpoint                string `json:"graphEndpoint"`
-	StorageEndpointSuffix        string `json:"storageEndpointSuffix"`
-	SQLDatabaseDNSSuffix         string `json:"sqlDatabaseDNSSuffix"`
-	TrafficManagerDNSSuffix      string `json:"trafficManagerDNSSuffix"`
-	KeyVaultDNSSuffix            string `json:"keyVaultDNSSuffix"`
-	ServiceBusEndpointSuffix     string `json:"serviceBusEndpointSuffix"`
-	ServiceManagementVMDNSSuffix string `json:"serviceManagementVMDNSSuffix"`
-	ResourceManagerVMDNSSuffix   string `json:"resourceManagerVMDNSSuffix"`
-	ContainerRegistryDNSSuffix   string `json:"containerRegistryDNSSuffix"`
-}
-
-var (
-	// PublicCloud is the default public Azure cloud environment
-	PublicCloud = Environment{
-		Name:                         "AzurePublicCloud",
-		ManagementPortalURL:          "https://manage.windowsazure.com/",
-		PublishSettingsURL:           "https://manage.windowsazure.com/publishsettings/index",
-		ServiceManagementEndpoint:    "https://management.core.windows.net/",
-		ResourceManagerEndpoint:      "https://management.azure.com/",
-		ActiveDirectoryEndpoint:      "https://login.microsoftonline.com/",
-		GalleryEndpoint:              "https://gallery.azure.com/",
-		KeyVaultEndpoint:             "https://vault.azure.net/",
-		GraphEndpoint:                "https://graph.windows.net/",
-		StorageEndpointSuffix:        "core.windows.net",
-		SQLDatabaseDNSSuffix:         "database.windows.net",
-		TrafficManagerDNSSuffix:      "trafficmanager.net",
-		KeyVaultDNSSuffix:            "vault.azure.net",
-		ServiceBusEndpointSuffix:     "servicebus.azure.com",
-		ServiceManagementVMDNSSuffix: "cloudapp.net",
-		ResourceManagerVMDNSSuffix:   "cloudapp.azure.com",
-		ContainerRegistryDNSSuffix:   "azurecr.io",
-	}
-
-	// USGovernmentCloud is the cloud environment for the US Government
-	USGovernmentCloud = Environment{
-		Name:                         "AzureUSGovernmentCloud",
-		ManagementPortalURL:          "https://manage.windowsazure.us/",
-		PublishSettingsURL:           "https://manage.windowsazure.us/publishsettings/index",
-		ServiceManagementEndpoint:    "https://management.core.usgovcloudapi.net/",
-		ResourceManagerEndpoint:      "https://management.usgovcloudapi.net/",
-		ActiveDirectoryEndpoint:      "https://login.microsoftonline.com/",
-		GalleryEndpoint:              "https://gallery.usgovcloudapi.net/",
-		KeyVaultEndpoint:             "https://vault.usgovcloudapi.net/",
-		GraphEndpoint:                "https://graph.usgovcloudapi.net/",
-		StorageEndpointSuffix:        "core.usgovcloudapi.net",
-		SQLDatabaseDNSSuffix:         "database.usgovcloudapi.net",
-		TrafficManagerDNSSuffix:      "usgovtrafficmanager.net",
-		KeyVaultDNSSuffix:            "vault.usgovcloudapi.net",
-		ServiceBusEndpointSuffix:     "servicebus.usgovcloudapi.net",
-		ServiceManagementVMDNSSuffix: "usgovcloudapp.net",
-		ResourceManagerVMDNSSuffix:   "cloudapp.windowsazure.us",
-		ContainerRegistryDNSSuffix:   "azurecr.io",
-	}
-
-	// ChinaCloud is the cloud environment operated in China
-	ChinaCloud = Environment{
-		Name:                         "AzureChinaCloud",
-		ManagementPortalURL:          "https://manage.chinacloudapi.com/",
-		PublishSettingsURL:           "https://manage.chinacloudapi.com/publishsettings/index",
-		ServiceManagementEndpoint:    "https://management.core.chinacloudapi.cn/",
-		ResourceManagerEndpoint:      "https://management.chinacloudapi.cn/",
-		ActiveDirectoryEndpoint:      "https://login.chinacloudapi.cn/",
-		GalleryEndpoint:              "https://gallery.chinacloudapi.cn/",
-		KeyVaultEndpoint:             "https://vault.azure.cn/",
-		GraphEndpoint:                "https://graph.chinacloudapi.cn/",
-		StorageEndpointSuffix:        "core.chinacloudapi.cn",
-		SQLDatabaseDNSSuffix:         "database.chinacloudapi.cn",
-		TrafficManagerDNSSuffix:      "trafficmanager.cn",
-		KeyVaultDNSSuffix:            "vault.azure.cn",
-		ServiceBusEndpointSuffix:     "servicebus.chinacloudapi.net",
-		ServiceManagementVMDNSSuffix: "chinacloudapp.cn",
-		ResourceManagerVMDNSSuffix:   "cloudapp.azure.cn",
-		ContainerRegistryDNSSuffix:   "azurecr.io",
-	}
-
-	// GermanCloud is the cloud environment operated in Germany
-	GermanCloud = Environment{
-		Name:                         "AzureGermanCloud",
-		ManagementPortalURL:          "http://portal.microsoftazure.de/",
-		PublishSettingsURL:           "https://manage.microsoftazure.de/publishsettings/index",
-		ServiceManagementEndpoint:    "https://management.core.cloudapi.de/",
-		ResourceManagerEndpoint:      "https://management.microsoftazure.de/",
-		ActiveDirectoryEndpoint:      "https://login.microsoftonline.de/",
-		GalleryEndpoint:              "https://gallery.cloudapi.de/",
-		KeyVaultEndpoint:             "https://vault.microsoftazure.de/",
-		GraphEndpoint:                "https://graph.cloudapi.de/",
-		StorageEndpointSuffix:        "core.cloudapi.de",
-		SQLDatabaseDNSSuffix:         "database.cloudapi.de",
-		TrafficManagerDNSSuffix:      "azuretrafficmanager.de",
-		KeyVaultDNSSuffix:            "vault.microsoftazure.de",
-		ServiceBusEndpointSuffix:     "servicebus.cloudapi.de",
-		ServiceManagementVMDNSSuffix: "azurecloudapp.de",
-		ResourceManagerVMDNSSuffix:   "cloudapp.microsoftazure.de",
-		ContainerRegistryDNSSuffix:   "azurecr.io",
-	}
-)
-
-// EnvironmentFromName returns an Environment based on the common name specified
-func EnvironmentFromName(name string) (Environment, error) {
-	name = strings.ToUpper(name)
-	env, ok := environments[name]
-	if !ok {
-		return env, fmt.Errorf("autorest/azure: There is no cloud environment matching the name %q", name)
-	}
-	return env, nil
-}
-
-// OAuthConfigForTenant returns an OAuthConfig with tenant specific urls
-func (env Environment) OAuthConfigForTenant(tenantID string) (*OAuthConfig, error) {
-	return OAuthConfigForTenant(env.ActiveDirectoryEndpoint, tenantID)
-}
-
-// OAuthConfigForTenant returns an OAuthConfig with tenant specific urls for target cloud auth endpoint
-func OAuthConfigForTenant(activeDirectoryEndpoint, tenantID string) (*OAuthConfig, error) {
-	template := "%s/oauth2/%s?api-version=%s"
-	u, err := url.Parse(activeDirectoryEndpoint)
-	if err != nil {
-		return nil, err
-	}
-	authorizeURL, err := u.Parse(fmt.Sprintf(template, tenantID, "authorize", activeDirectoryAPIVersion))
-	if err != nil {
-		return nil, err
-	}
-	tokenURL, err := u.Parse(fmt.Sprintf(template, tenantID, "token", activeDirectoryAPIVersion))
-	if err != nil {
-		return nil, err
-	}
-	deviceCodeURL, err := u.Parse(fmt.Sprintf(template, tenantID, "devicecode", activeDirectoryAPIVersion))
-	if err != nil {
-		return nil, err
-	}
-
-	return &OAuthConfig{
-		AuthorizeEndpoint:  *authorizeURL,
-		TokenEndpoint:      *tokenURL,
-		DeviceCodeEndpoint: *deviceCodeURL,
-	}, nil
-}

vendor/github.com/Azure/go-autorest/autorest/azure/persist.go

@@ -1,59 +0,0 @@
-package azure
-
-import (
-	"encoding/json"
-	"fmt"
-	"io/ioutil"
-	"os"
-	"path/filepath"
-)
-
-// LoadToken restores a Token object from a file located at 'path'.
-func LoadToken(path string) (*Token, error) {
-	file, err := os.Open(path)
-	if err != nil {
-		return nil, fmt.Errorf("failed to open file (%s) while loading token: %v", path, err)
-	}
-	defer file.Close()
-
-	var token Token
-
-	dec := json.NewDecoder(file)
-	if err = dec.Decode(&token); err != nil {
-		return nil, fmt.Errorf("failed to decode contents of file (%s) into Token representation: %v", path, err)
-	}
-	return &token, nil
-}
-
-// SaveToken persists an oauth token at the given location on disk.
-// It moves the new file into place so it can safely be used to replace an existing file
-// that maybe accessed by multiple processes.
-func SaveToken(path string, mode os.FileMode, token Token) error {
-	dir := filepath.Dir(path)
-	err := os.MkdirAll(dir, os.ModePerm)
-	if err != nil {
-		return fmt.Errorf("failed to create directory (%s) to store token in: %v", dir, err)
-	}
-
-	newFile, err := ioutil.TempFile(dir, "token")
-	if err != nil {
-		return fmt.Errorf("failed to create the temp file to write the token: %v", err)
-	}
-	tempPath := newFile.Name()
-
-	if err := json.NewEncoder(newFile).Encode(token); err != nil {
-		return fmt.Errorf("failed to encode token to file (%s) while saving token: %v", tempPath, err)
-	}
-	if err := newFile.Close(); err != nil {
-		return fmt.Errorf("failed to close temp file %s: %v", tempPath, err)
-	}
-
-	// Atomic replace to avoid multi-writer file corruptions
-	if err := os.Rename(tempPath, path); err != nil {
-		return fmt.Errorf("failed to move temporary token to desired output location. src=%s dst=%s: %v", tempPath, path, err)
-	}
-	if err := os.Chmod(path, mode); err != nil {
-		return fmt.Errorf("failed to chmod the token file %s: %v", path, err)
-	}
-	return nil
-}

vendor/github.com/Azure/go-autorest/autorest/azure/token.go

@@ -1,363 +0,0 @@
-package azure
-
-import (
-	"crypto/rand"
-	"crypto/rsa"
-	"crypto/sha1"
-	"crypto/x509"
-	"encoding/base64"
-	"fmt"
-	"net/http"
-	"net/url"
-	"strconv"
-	"time"
-
-	"github.com/Azure/go-autorest/autorest"
-	"github.com/dgrijalva/jwt-go"
-)
-
-const (
-	defaultRefresh = 5 * time.Minute
-	tokenBaseDate  = "1970-01-01T00:00:00Z"
-
-	// OAuthGrantTypeDeviceCode is the "grant_type" identifier used in device flow
-	OAuthGrantTypeDeviceCode = "device_code"
-
-	// OAuthGrantTypeClientCredentials is the "grant_type" identifier used in credential flows
-	OAuthGrantTypeClientCredentials = "client_credentials"
-
-	// OAuthGrantTypeRefreshToken is the "grant_type" identifier used in refresh token flows
-	OAuthGrantTypeRefreshToken = "refresh_token"
-)
-
-var expirationBase time.Time
-
-func init() {
-	expirationBase, _ = time.Parse(time.RFC3339, tokenBaseDate)
-}
-
-// TokenRefreshCallback is the type representing callbacks that will be called after
-// a successful token refresh
-type TokenRefreshCallback func(Token) error
-
-// Token encapsulates the access token used to authorize Azure requests.
-type Token struct {
-	AccessToken  string `json:"access_token"`
-	RefreshToken string `json:"refresh_token"`
-
-	ExpiresIn string `json:"expires_in"`
-	ExpiresOn string `json:"expires_on"`
-	NotBefore string `json:"not_before"`
-
-	Resource string `json:"resource"`
-	Type     string `json:"token_type"`
-}
-
-// Expires returns the time.Time when the Token expires.
-func (t Token) Expires() time.Time {
-	s, err := strconv.Atoi(t.ExpiresOn)
-	if err != nil {
-		s = -3600
-	}
-	return expirationBase.Add(time.Duration(s) * time.Second).UTC()
-}
-
-// IsExpired returns true if the Token is expired, false otherwise.
-func (t Token) IsExpired() bool {
-	return t.WillExpireIn(0)
-}
-
-// WillExpireIn returns true if the Token will expire after the passed time.Duration interval
-// from now, false otherwise.
-func (t Token) WillExpireIn(d time.Duration) bool {
-	return !t.Expires().After(time.Now().Add(d))
-}
-
-// WithAuthorization returns a PrepareDecorator that adds an HTTP Authorization header whose
-// value is "Bearer " followed by the AccessToken of the Token.
-func (t *Token) WithAuthorization() autorest.PrepareDecorator {
-	return func(p autorest.Preparer) autorest.Preparer {
-		return autorest.PreparerFunc(func(r *http.Request) (*http.Request, error) {
-			return (autorest.WithBearerAuthorization(t.AccessToken)(p)).Prepare(r)
-		})
-	}
-}
-
-// ServicePrincipalNoSecret represents a secret type that contains no secret
-// meaning it is not valid for fetching a fresh token. This is used by Manual
-type ServicePrincipalNoSecret struct {
-}
-
-// SetAuthenticationValues is a method of the interface ServicePrincipalSecret
-// It only returns an error for the ServicePrincipalNoSecret type
-func (noSecret *ServicePrincipalNoSecret) SetAuthenticationValues(spt *ServicePrincipalToken, v *url.Values) error {
-	return fmt.Errorf("Manually created ServicePrincipalToken does not contain secret material to retrieve a new access token")
-}
-
-// ServicePrincipalSecret is an interface that allows various secret mechanism to fill the form
-// that is submitted when acquiring an oAuth token.
-type ServicePrincipalSecret interface {
-	SetAuthenticationValues(spt *ServicePrincipalToken, values *url.Values) error
-}
-
-// ServicePrincipalTokenSecret implements ServicePrincipalSecret for client_secret type authorization.
-type ServicePrincipalTokenSecret struct {
-	ClientSecret string
-}
-
-// SetAuthenticationValues is a method of the interface ServicePrincipalSecret.
-// It will populate the form submitted during oAuth Token Acquisition using the client_secret.
-func (tokenSecret *ServicePrincipalTokenSecret) SetAuthenticationValues(spt *ServicePrincipalToken, v *url.Values) error {
-	v.Set("client_secret", tokenSecret.ClientSecret)
-	return nil
-}
-
-// ServicePrincipalCertificateSecret implements ServicePrincipalSecret for generic RSA cert auth with signed JWTs.
-type ServicePrincipalCertificateSecret struct {
-	Certificate *x509.Certificate
-	PrivateKey  *rsa.PrivateKey
-}
-
-// SignJwt returns the JWT signed with the certificate's private key.
-func (secret *ServicePrincipalCertificateSecret) SignJwt(spt *ServicePrincipalToken) (string, error) {
-	hasher := sha1.New()
-	_, err := hasher.Write(secret.Certificate.Raw)
-	if err != nil {
-		return "", err
-	}
-
-	thumbprint := base64.URLEncoding.EncodeToString(hasher.Sum(nil))
-
-	// The jti (JWT ID) claim provides a unique identifier for the JWT.
-	jti := make([]byte, 20)
-	_, err = rand.Read(jti)
-	if err != nil {
-		return "", err
-	}
-
-	token := jwt.New(jwt.SigningMethodRS256)
-	token.Header["x5t"] = thumbprint
-	token.Claims = jwt.MapClaims{
-		"aud": spt.oauthConfig.TokenEndpoint.String(),
-		"iss": spt.clientID,
-		"sub": spt.clientID,
-		"jti": base64.URLEncoding.EncodeToString(jti),
-		"nbf": time.Now().Unix(),
-		"exp": time.Now().Add(time.Hour * 24).Unix(),
-	}
-
-	signedString, err := token.SignedString(secret.PrivateKey)
-	return signedString, err
-}
-
-// SetAuthenticationValues is a method of the interface ServicePrincipalSecret.
-// It will populate the form submitted during oAuth Token Acquisition using a JWT signed with a certificate.
-func (secret *ServicePrincipalCertificateSecret) SetAuthenticationValues(spt *ServicePrincipalToken, v *url.Values) error {
-	jwt, err := secret.SignJwt(spt)
-	if err != nil {
-		return err
-	}
-
-	v.Set("client_assertion", jwt)
-	v.Set("client_assertion_type", "urn:ietf:params:oauth:client-assertion-type:jwt-bearer")
-	return nil
-}
-
-// ServicePrincipalToken encapsulates a Token created for a Service Principal.
-type ServicePrincipalToken struct {
-	Token
-
-	secret        ServicePrincipalSecret
-	oauthConfig   OAuthConfig
-	clientID      string
-	resource      string
-	autoRefresh   bool
-	refreshWithin time.Duration
-	sender        autorest.Sender
-
-	refreshCallbacks []TokenRefreshCallback
-}
-
-// NewServicePrincipalTokenWithSecret create a ServicePrincipalToken using the supplied ServicePrincipalSecret implementation.
-func NewServicePrincipalTokenWithSecret(oauthConfig OAuthConfig, id string, resource string, secret ServicePrincipalSecret, callbacks ...TokenRefreshCallback) (*ServicePrincipalToken, error) {
-	spt := &ServicePrincipalToken{
-		oauthConfig:      oauthConfig,
-		secret:           secret,
-		clientID:         id,
-		resource:         resource,
-		autoRefresh:      true,
-		refreshWithin:    defaultRefresh,
-		sender:           &http.Client{},
-		refreshCallbacks: callbacks,
-	}
-	return spt, nil
-}
-
-// NewServicePrincipalTokenFromManualToken creates a ServicePrincipalToken using the supplied token
-func NewServicePrincipalTokenFromManualToken(oauthConfig OAuthConfig, clientID string, resource string, token Token, callbacks ...TokenRefreshCallback) (*ServicePrincipalToken, error) {
-	spt, err := NewServicePrincipalTokenWithSecret(
-		oauthConfig,
-		clientID,
-		resource,
-		&ServicePrincipalNoSecret{},
-		callbacks...)
-	if err != nil {
-		return nil, err
-	}
-
-	spt.Token = token
-
-	return spt, nil
-}
-
-// NewServicePrincipalToken creates a ServicePrincipalToken from the supplied Service Principal
-// credentials scoped to the named resource.
-func NewServicePrincipalToken(oauthConfig OAuthConfig, clientID string, secret string, resource string, callbacks ...TokenRefreshCallback) (*ServicePrincipalToken, error) {
-	return NewServicePrincipalTokenWithSecret(
-		oauthConfig,
-		clientID,
-		resource,
-		&ServicePrincipalTokenSecret{
-			ClientSecret: secret,
-		},
-		callbacks...,
-	)
-}
-
-// NewServicePrincipalTokenFromCertificate create a ServicePrincipalToken from the supplied pkcs12 bytes.
-func NewServicePrincipalTokenFromCertificate(oauthConfig OAuthConfig, clientID string, certificate *x509.Certificate, privateKey *rsa.PrivateKey, resource string, callbacks ...TokenRefreshCallback) (*ServicePrincipalToken, error) {
-	return NewServicePrincipalTokenWithSecret(
-		oauthConfig,
-		clientID,
-		resource,
-		&ServicePrincipalCertificateSecret{
-			PrivateKey:  privateKey,
-			Certificate: certificate,
-		},
-		callbacks...,
-	)
-}
-
-// EnsureFresh will refresh the token if it will expire within the refresh window (as set by
-// RefreshWithin).
-func (spt *ServicePrincipalToken) EnsureFresh() error {
-	if spt.WillExpireIn(spt.refreshWithin) {
-		return spt.Refresh()
-	}
-	return nil
-}
-
-// InvokeRefreshCallbacks calls any TokenRefreshCallbacks that were added to the SPT during initialization
-func (spt *ServicePrincipalToken) InvokeRefreshCallbacks(token Token) error {
-	if spt.refreshCallbacks != nil {
-		for _, callback := range spt.refreshCallbacks {
-			err := callback(spt.Token)
-			if err != nil {
-				return autorest.NewErrorWithError(err,
-					"azure.ServicePrincipalToken", "InvokeRefreshCallbacks", nil, "A TokenRefreshCallback handler returned an error")
-			}
-		}
-	}
-	return nil
-}
-
-// Refresh obtains a fresh token for the Service Principal.
-func (spt *ServicePrincipalToken) Refresh() error {
-	return spt.refreshInternal(spt.resource)
-}
-
-// RefreshExchange refreshes the token, but for a different resource.
-func (spt *ServicePrincipalToken) RefreshExchange(resource string) error {
-	return spt.refreshInternal(resource)
-}
-
-func (spt *ServicePrincipalToken) refreshInternal(resource string) error {
-	v := url.Values{}
-	v.Set("client_id", spt.clientID)
-	v.Set("resource", resource)
-
-	if spt.RefreshToken != "" {
-		v.Set("grant_type", OAuthGrantTypeRefreshToken)
-		v.Set("refresh_token", spt.RefreshToken)
-	} else {
-		v.Set("grant_type", OAuthGrantTypeClientCredentials)
-		err := spt.secret.SetAuthenticationValues(spt, &v)
-		if err != nil {
-			return err
-		}
-	}
-
-	req, _ := autorest.Prepare(&http.Request{},
-		autorest.AsPost(),
-		autorest.AsFormURLEncoded(),
-		autorest.WithBaseURL(spt.oauthConfig.TokenEndpoint.String()),
-		autorest.WithFormData(v))
-
-	resp, err := autorest.SendWithSender(spt.sender, req)
-	if err != nil {
-		return autorest.NewErrorWithError(err,
-			"azure.ServicePrincipalToken", "Refresh", resp, "Failure sending request for Service Principal %s",
-			spt.clientID)
-	}
-
-	var newToken Token
-	err = autorest.Respond(resp,
-		autorest.WithErrorUnlessStatusCode(http.StatusOK),
-		autorest.ByUnmarshallingJSON(&newToken),
-		autorest.ByClosing())
-	if err != nil {
-		return autorest.NewErrorWithError(err,
-			"azure.ServicePrincipalToken", "Refresh", resp, "Failure handling response to Service Principal %s request",
-			spt.clientID)
-	}
-
-	spt.Token = newToken
-
-	err = spt.InvokeRefreshCallbacks(newToken)
-	if err != nil {
-		// its already wrapped inside InvokeRefreshCallbacks
-		return err
-	}
-
-	return nil
-}
-
-// SetAutoRefresh enables or disables automatic refreshing of stale tokens.
-func (spt *ServicePrincipalToken) SetAutoRefresh(autoRefresh bool) {
-	spt.autoRefresh = autoRefresh
-}
-
-// SetRefreshWithin sets the interval within which if the token will expire, EnsureFresh will
-// refresh the token.
-func (spt *ServicePrincipalToken) SetRefreshWithin(d time.Duration) {
-	spt.refreshWithin = d
-	return
-}
-
-// SetSender sets the autorest.Sender used when obtaining the Service Principal token. An
-// undecorated http.Client is used by default.
-func (spt *ServicePrincipalToken) SetSender(s autorest.Sender) {
-	spt.sender = s
-}
-
-// WithAuthorization returns a PrepareDecorator that adds an HTTP Authorization header whose
-// value is "Bearer " followed by the AccessToken of the ServicePrincipalToken.
-//
-// By default, the token will automatically refresh if nearly expired (as determined by the
-// RefreshWithin interval). Use the AutoRefresh method to enable or disable automatically refreshing
-// tokens.
-func (spt *ServicePrincipalToken) WithAuthorization() autorest.PrepareDecorator {
-	return func(p autorest.Preparer) autorest.Preparer {
-		return autorest.PreparerFunc(func(r *http.Request) (*http.Request, error) {
-			if spt.autoRefresh {
-				err := spt.EnsureFresh()
-				if err != nil {
-					return r, autorest.NewErrorWithError(err,
-						"azure.ServicePrincipalToken", "WithAuthorization", nil, "Failed to refresh Service Principal Token for request to %s",
-						r.URL)
-				}
-			}
-			return (autorest.WithBearerAuthorization(spt.AccessToken)(p)).Prepare(r)
-		})
-	}
-}

vendor/github.com/Azure/go-autorest/autorest/client.go

@@ -1,235 +0,0 @@
-package autorest
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"log"
-	"net/http"
-	"net/http/cookiejar"
-	"runtime"
-	"time"
-)
-
-const (
-	// DefaultPollingDelay is a reasonable delay between polling requests.
-	DefaultPollingDelay = 60 * time.Second
-
-	// DefaultPollingDuration is a reasonable total polling duration.
-	DefaultPollingDuration = 15 * time.Minute
-
-	// DefaultRetryAttempts is number of attempts for retry status codes (5xx).
-	DefaultRetryAttempts = 3
-)
-
-var (
-	// defaultUserAgent builds a string containing the Go version, system archityecture and OS,
-	// and the go-autorest version.
-	defaultUserAgent = fmt.Sprintf("Go/%s (%s-%s) go-autorest/%s",
-		runtime.Version(),
-		runtime.GOARCH,
-		runtime.GOOS,
-		Version(),
-	)
-
-	statusCodesForRetry = []int{
-		http.StatusRequestTimeout,      // 408
-		http.StatusInternalServerError, // 500
-		http.StatusBadGateway,          // 502
-		http.StatusServiceUnavailable,  // 503
-		http.StatusGatewayTimeout,      // 504
-	}
-)
-
-const (
-	requestFormat = `HTTP Request Begin ===================================================
-%s
-===================================================== HTTP Request End
-`
-	responseFormat = `HTTP Response Begin ===================================================
-%s
-===================================================== HTTP Response End
-`
-)
-
-// Response serves as the base for all responses from generated clients. It provides access to the
-// last http.Response.
-type Response struct {
-	*http.Response `json:"-"`
-}
-
-// LoggingInspector implements request and response inspectors that log the full request and
-// response to a supplied log.
-type LoggingInspector struct {
-	Logger *log.Logger
-}
-
-// WithInspection returns a PrepareDecorator that emits the http.Request to the supplied logger. The
-// body is restored after being emitted.
-//
-// Note: Since it reads the entire Body, this decorator should not be used where body streaming is
-// important. It is best used to trace JSON or similar body values.
-func (li LoggingInspector) WithInspection() PrepareDecorator {
-	return func(p Preparer) Preparer {
-		return PreparerFunc(func(r *http.Request) (*http.Request, error) {
-			var body, b bytes.Buffer
-
-			defer r.Body.Close()
-
-			r.Body = ioutil.NopCloser(io.TeeReader(r.Body, &body))
-			if err := r.Write(&b); err != nil {
-				return nil, fmt.Errorf("Failed to write response: %v", err)
-			}
-
-			li.Logger.Printf(requestFormat, b.String())
-
-			r.Body = ioutil.NopCloser(&body)
-			return p.Prepare(r)
-		})
-	}
-}
-
-// ByInspecting returns a RespondDecorator that emits the http.Response to the supplied logger. The
-// body is restored after being emitted.
-//
-// Note: Since it reads the entire Body, this decorator should not be used where body streaming is
-// important. It is best used to trace JSON or similar body values.
-func (li LoggingInspector) ByInspecting() RespondDecorator {
-	return func(r Responder) Responder {
-		return ResponderFunc(func(resp *http.Response) error {
-			var body, b bytes.Buffer
-			defer resp.Body.Close()
-			resp.Body = ioutil.NopCloser(io.TeeReader(resp.Body, &body))
-			if err := resp.Write(&b); err != nil {
-				return fmt.Errorf("Failed to write response: %v", err)
-			}
-
-			li.Logger.Printf(responseFormat, b.String())
-
-			resp.Body = ioutil.NopCloser(&body)
-			return r.Respond(resp)
-		})
-	}
-}
-
-// Client is the base for autorest generated clients. It provides default, "do nothing"
-// implementations of an Authorizer, RequestInspector, and ResponseInspector. It also returns the
-// standard, undecorated http.Client as a default Sender.
-//
-// Generated clients should also use Error (see NewError and NewErrorWithError) for errors and
-// return responses that compose with Response.
-//
-// Most customization of generated clients is best achieved by supplying a custom Authorizer, custom
-// RequestInspector, and / or custom ResponseInspector. Users may log requests, implement circuit
-// breakers (see https://msdn.microsoft.com/en-us/library/dn589784.aspx) or otherwise influence
-// sending the request by providing a decorated Sender.
-type Client struct {
-	Authorizer        Authorizer
-	Sender            Sender
-	RequestInspector  PrepareDecorator
-	ResponseInspector RespondDecorator
-
-	// PollingDelay sets the polling frequency used in absence of a Retry-After HTTP header
-	PollingDelay time.Duration
-
-	// PollingDuration sets the maximum polling time after which an error is returned.
-	PollingDuration time.Duration
-
-	// RetryAttempts sets the default number of retry attempts for client.
-	RetryAttempts int
-
-	// RetryDuration sets the delay duration for retries.
-	RetryDuration time.Duration
-
-	// UserAgent, if not empty, will be set as the HTTP User-Agent header on all requests sent
-	// through the Do method.
-	UserAgent string
-
-	Jar http.CookieJar
-}
-
-// NewClientWithUserAgent returns an instance of a Client with the UserAgent set to the passed
-// string.
-func NewClientWithUserAgent(ua string) Client {
-	c := Client{
-		PollingDelay:    DefaultPollingDelay,
-		PollingDuration: DefaultPollingDuration,
-		RetryAttempts:   DefaultRetryAttempts,
-		RetryDuration:   30 * time.Second,
-		UserAgent:       defaultUserAgent,
-	}
-	c.AddToUserAgent(ua)
-	return c
-}
-
-// AddToUserAgent adds an extension to the current user agent
-func (c *Client) AddToUserAgent(extension string) error {
-	if extension != "" {
-		c.UserAgent = fmt.Sprintf("%s %s", c.UserAgent, extension)
-		return nil
-	}
-	return fmt.Errorf("Extension was empty, User Agent stayed as %s", c.UserAgent)
-}
-
-// Do implements the Sender interface by invoking the active Sender after applying authorization.
-// If Sender is not set, it uses a new instance of http.Client. In both cases it will, if UserAgent
-// is set, apply set the User-Agent header.
-func (c Client) Do(r *http.Request) (*http.Response, error) {
-	if r.UserAgent() == "" {
-		r, _ = Prepare(r,
-			WithUserAgent(c.UserAgent))
-	}
-	r, err := Prepare(r,
-		c.WithInspection(),
-		c.WithAuthorization())
-	if err != nil {
-		return nil, NewErrorWithError(err, "autorest/Client", "Do", nil, "Preparing request failed")
-	}
-	resp, err := SendWithSender(c.sender(), r,
-		DoRetryForStatusCodes(c.RetryAttempts, c.RetryDuration, statusCodesForRetry...))
-	Respond(resp,
-		c.ByInspecting())
-	return resp, err
-}
-
-// sender returns the Sender to which to send requests.
-func (c Client) sender() Sender {
-	if c.Sender == nil {
-		j, _ := cookiejar.New(nil)
-		return &http.Client{Jar: j}
-	}
-	return c.Sender
-}
-
-// WithAuthorization is a convenience method that returns the WithAuthorization PrepareDecorator
-// from the current Authorizer. If not Authorizer is set, it uses the NullAuthorizer.
-func (c Client) WithAuthorization() PrepareDecorator {
-	return c.authorizer().WithAuthorization()
-}
-
-// authorizer returns the Authorizer to use.
-func (c Client) authorizer() Authorizer {
-	if c.Authorizer == nil {
-		return NullAuthorizer{}
-	}
-	return c.Authorizer
-}
-
-// WithInspection is a convenience method that passes the request to the supplied RequestInspector,
-// if present, or returns the WithNothing PrepareDecorator otherwise.
-func (c Client) WithInspection() PrepareDecorator {
-	if c.RequestInspector == nil {
-		return WithNothing()
-	}
-	return c.RequestInspector
-}
-
-// ByInspecting is a convenience method that passes the response to the supplied ResponseInspector,
-// if present, or returns the ByIgnoring RespondDecorator otherwise.
-func (c Client) ByInspecting() RespondDecorator {
-	if c.ResponseInspector == nil {
-		return ByIgnoring()
-	}
-	return c.ResponseInspector
-}

vendor/github.com/Azure/go-autorest/autorest/date/date.go

@@ -1,82 +0,0 @@
-/*
-Package date provides time.Time derivatives that conform to the Swagger.io (https://swagger.io/)
-defined date   formats: Date and DateTime. Both types may, in most cases, be used in lieu of
-time.Time types. And both convert to time.Time through a ToTime method.
-*/
-package date
-
-import (
-	"fmt"
-	"time"
-)
-
-const (
-	fullDate     = "2006-01-02"
-	fullDateJSON = `"2006-01-02"`
-	dateFormat   = "%04d-%02d-%02d"
-	jsonFormat   = `"%04d-%02d-%02d"`
-)
-
-// Date defines a type similar to time.Time but assumes a layout of RFC3339 full-date (i.e.,
-// 2006-01-02).
-type Date struct {
-	time.Time
-}
-
-// ParseDate create a new Date from the passed string.
-func ParseDate(date string) (d Date, err error) {
-	return parseDate(date, fullDate)
-}
-
-func parseDate(date string, format string) (Date, error) {
-	d, err := time.Parse(format, date)
-	return Date{Time: d}, err
-}
-
-// MarshalBinary preserves the Date as a byte array conforming to RFC3339 full-date (i.e.,
-// 2006-01-02).
-func (d Date) MarshalBinary() ([]byte, error) {
-	return d.MarshalText()
-}
-
-// UnmarshalBinary reconstitutes a Date saved as a byte array conforming to RFC3339 full-date (i.e.,
-// 2006-01-02).
-func (d *Date) UnmarshalBinary(data []byte) error {
-	return d.UnmarshalText(data)
-}
-
-// MarshalJSON preserves the Date as a JSON string conforming to RFC3339 full-date (i.e.,
-// 2006-01-02).
-func (d Date) MarshalJSON() (json []byte, err error) {
-	return []byte(fmt.Sprintf(jsonFormat, d.Year(), d.Month(), d.Day())), nil
-}
-
-// UnmarshalJSON reconstitutes the Date from a JSON string conforming to RFC3339 full-date (i.e.,
-// 2006-01-02).
-func (d *Date) UnmarshalJSON(data []byte) (err error) {
-	d.Time, err = time.Parse(fullDateJSON, string(data))
-	return err
-}
-
-// MarshalText preserves the Date as a byte array conforming to RFC3339 full-date (i.e.,
-// 2006-01-02).
-func (d Date) MarshalText() (text []byte, err error) {
-	return []byte(fmt.Sprintf(dateFormat, d.Year(), d.Month(), d.Day())), nil
-}
-
-// UnmarshalText reconstitutes a Date saved as a byte array conforming to RFC3339 full-date (i.e.,
-// 2006-01-02).
-func (d *Date) UnmarshalText(data []byte) (err error) {
-	d.Time, err = time.Parse(fullDate, string(data))
-	return err
-}
-
-// String returns the Date formatted as an RFC3339 full-date string (i.e., 2006-01-02).
-func (d Date) String() string {
-	return fmt.Sprintf(dateFormat, d.Year(), d.Month(), d.Day())
-}
-
-// ToTime returns a Date as a time.Time
-func (d Date) ToTime() time.Time {
-	return d.Time
-}

vendor/github.com/Azure/go-autorest/autorest/date/time.go

@@ -1,89 +0,0 @@
-package date
-
-import (
-	"regexp"
-	"time"
-)
-
-// Azure reports time in UTC but it doesn't include the 'Z' time zone suffix in some cases.
-const (
-	azureUtcFormatJSON = `"2006-01-02T15:04:05.999999999"`
-	azureUtcFormat     = "2006-01-02T15:04:05.999999999"
-	rfc3339JSON        = `"` + time.RFC3339Nano + `"`
-	rfc3339            = time.RFC3339Nano
-	tzOffsetRegex      = `(Z|z|\+|-)(\d+:\d+)*"*$`
-)
-
-// Time defines a type similar to time.Time but assumes a layout of RFC3339 date-time (i.e.,
-// 2006-01-02T15:04:05Z).
-type Time struct {
-	time.Time
-}
-
-// MarshalBinary preserves the Time as a byte array conforming to RFC3339 date-time (i.e.,
-// 2006-01-02T15:04:05Z).
-func (t Time) MarshalBinary() ([]byte, error) {
-	return t.Time.MarshalText()
-}
-
-// UnmarshalBinary reconstitutes a Time saved as a byte array conforming to RFC3339 date-time
-// (i.e., 2006-01-02T15:04:05Z).
-func (t *Time) UnmarshalBinary(data []byte) error {
-	return t.UnmarshalText(data)
-}
-
-// MarshalJSON preserves the Time as a JSON string conforming to RFC3339 date-time (i.e.,
-// 2006-01-02T15:04:05Z).
-func (t Time) MarshalJSON() (json []byte, err error) {
-	return t.Time.MarshalJSON()
-}
-
-// UnmarshalJSON reconstitutes the Time from a JSON string conforming to RFC3339 date-time
-// (i.e., 2006-01-02T15:04:05Z).
-func (t *Time) UnmarshalJSON(data []byte) (err error) {
-	timeFormat := azureUtcFormatJSON
-	match, err := regexp.Match(tzOffsetRegex, data)
-	if err != nil {
-		return err
-	} else if match {
-		timeFormat = rfc3339JSON
-	}
-	t.Time, err = ParseTime(timeFormat, string(data))
-	return err
-}
-
-// MarshalText preserves the Time as a byte array conforming to RFC3339 date-time (i.e.,
-// 2006-01-02T15:04:05Z).
-func (t Time) MarshalText() (text []byte, err error) {
-	return t.Time.MarshalText()
-}
-
-// UnmarshalText reconstitutes a Time saved as a byte array conforming to RFC3339 date-time
-// (i.e., 2006-01-02T15:04:05Z).
-func (t *Time) UnmarshalText(data []byte) (err error) {
-	timeFormat := azureUtcFormat
-	match, err := regexp.Match(tzOffsetRegex, data)
-	if err != nil {
-		return err
-	} else if match {
-		timeFormat = rfc3339
-	}
-	t.Time, err = ParseTime(timeFormat, string(data))
-	return err
-}
-
-// String returns the Time formatted as an RFC3339 date-time string (i.e.,
-// 2006-01-02T15:04:05Z).
-func (t Time) String() string {
-	// Note: time.Time.String does not return an RFC3339 compliant string, time.Time.MarshalText does.
-	b, err := t.MarshalText()
-	if err != nil {
-		return ""
-	}
-	return string(b)
-}
-
-// ToTime returns a Time as a time.Time
-func (t Time) ToTime() time.Time {
-	return t.Time
-}

vendor/github.com/Azure/go-autorest/autorest/date/timerfc1123.go

@@ -1,86 +0,0 @@
-package date
-
-import (
-	"errors"
-	"time"
-)
-
-const (
-	rfc1123JSON = `"` + time.RFC1123 + `"`
-	rfc1123     = time.RFC1123
-)
-
-// TimeRFC1123 defines a type similar to time.Time but assumes a layout of RFC1123 date-time (i.e.,
-// Mon, 02 Jan 2006 15:04:05 MST).
-type TimeRFC1123 struct {
-	time.Time
-}
-
-// UnmarshalJSON reconstitutes the Time from a JSON string conforming to RFC1123 date-time
-// (i.e., Mon, 02 Jan 2006 15:04:05 MST).
-func (t *TimeRFC1123) UnmarshalJSON(data []byte) (err error) {
-	t.Time, err = ParseTime(rfc1123JSON, string(data))
-	if err != nil {
-		return err
-	}
-	return nil
-}
-
-// MarshalJSON preserves the Time as a JSON string conforming to RFC1123 date-time (i.e.,
-// Mon, 02 Jan 2006 15:04:05 MST).
-func (t TimeRFC1123) MarshalJSON() ([]byte, error) {
-	if y := t.Year(); y < 0 || y >= 10000 {
-		return nil, errors.New("Time.MarshalJSON: year outside of range [0,9999]")
-	}
-	b := []byte(t.Format(rfc1123JSON))
-	return b, nil
-}
-
-// MarshalText preserves the Time as a byte array conforming to RFC1123 date-time (i.e.,
-// Mon, 02 Jan 2006 15:04:05 MST).
-func (t TimeRFC1123) MarshalText() ([]byte, error) {
-	if y := t.Year(); y < 0 || y >= 10000 {
-		return nil, errors.New("Time.MarshalText: year outside of range [0,9999]")
-	}
-
-	b := []byte(t.Format(rfc1123))
-	return b, nil
-}
-
-// UnmarshalText reconstitutes a Time saved as a byte array conforming to RFC1123 date-time
-// (i.e., Mon, 02 Jan 2006 15:04:05 MST).
-func (t *TimeRFC1123) UnmarshalText(data []byte) (err error) {
-	t.Time, err = ParseTime(rfc1123, string(data))
-	if err != nil {
-		return err
-	}
-	return nil
-}
-
-// MarshalBinary preserves the Time as a byte array conforming to RFC1123 date-time (i.e.,
-// Mon, 02 Jan 2006 15:04:05 MST).
-func (t TimeRFC1123) MarshalBinary() ([]byte, error) {
-	return t.MarshalText()
-}
-
-// UnmarshalBinary reconstitutes a Time saved as a byte array conforming to RFC1123 date-time
-// (i.e., Mon, 02 Jan 2006 15:04:05 MST).
-func (t *TimeRFC1123) UnmarshalBinary(data []byte) error {
-	return t.UnmarshalText(data)
-}
-
-// ToTime returns a Time as a time.Time
-func (t TimeRFC1123) ToTime() time.Time {
-	return t.Time
-}
-
-// String returns the Time formatted as an RFC1123 date-time string (i.e.,
-// Mon, 02 Jan 2006 15:04:05 MST).
-func (t TimeRFC1123) String() string {
-	// Note: time.Time.String does not return an RFC1123 compliant string, time.Time.MarshalText does.
-	b, err := t.MarshalText()
-	if err != nil {
-		return ""
-	}
-	return string(b)
-}

vendor/github.com/Azure/go-autorest/autorest/date/utility.go

@@ -1,11 +0,0 @@
-package date
-
-import (
-	"strings"
-	"time"
-)
-
-// ParseTime to parse Time string to specified format.
-func ParseTime(format string, t string) (d time.Time, err error) {
-	return time.Parse(format, strings.ToUpper(t))
-}

vendor/github.com/Azure/go-autorest/autorest/error.go

@@ -1,80 +0,0 @@
-package autorest
-
-import (
-	"fmt"
-	"net/http"
-)
-
-const (
-	// UndefinedStatusCode is used when HTTP status code is not available for an error.
-	UndefinedStatusCode = 0
-)
-
-// DetailedError encloses a error with details of the package, method, and associated HTTP
-// status code (if any).
-type DetailedError struct {
-	Original error
-
-	// PackageType is the package type of the object emitting the error. For types, the value
-	// matches that produced the the '%T' format specifier of the fmt package. For other elements,
-	// such as functions, it is just the package name (e.g., "autorest").
-	PackageType string
-
-	// Method is the name of the method raising the error.
-	Method string
-
-	// StatusCode is the HTTP Response StatusCode (if non-zero) that led to the error.
-	StatusCode interface{}
-
-	// Message is the error message.
-	Message string
-
-	// Service Error is the response body of failed API in bytes
-	ServiceError []byte
-}
-
-// NewError creates a new Error conforming object from the passed packageType, method, and
-// message. message is treated as a format string to which the optional args apply.
-func NewError(packageType string, method string, message string, args ...interface{}) DetailedError {
-	return NewErrorWithError(nil, packageType, method, nil, message, args...)
-}
-
-// NewErrorWithResponse creates a new Error conforming object from the passed
-// packageType, method, statusCode of the given resp (UndefinedStatusCode if
-// resp is nil), and message. message is treated as a format string to which the
-// optional args apply.
-func NewErrorWithResponse(packageType string, method string, resp *http.Response, message string, args ...interface{}) DetailedError {
-	return NewErrorWithError(nil, packageType, method, resp, message, args...)
-}
-
-// NewErrorWithError creates a new Error conforming object from the
-// passed packageType, method, statusCode of the given resp (UndefinedStatusCode
-// if resp is nil), message, and original error. message is treated as a format
-// string to which the optional args apply.
-func NewErrorWithError(original error, packageType string, method string, resp *http.Response, message string, args ...interface{}) DetailedError {
-	if v, ok := original.(DetailedError); ok {
-		return v
-	}
-
-	statusCode := UndefinedStatusCode
-	if resp != nil {
-		statusCode = resp.StatusCode
-	}
-
-	return DetailedError{
-		Original:    original,
-		PackageType: packageType,
-		Method:      method,
-		StatusCode:  statusCode,
-		Message:     fmt.Sprintf(message, args...),
-	}
-}
-
-// Error returns a formatted containing all available details (i.e., PackageType, Method,
-// StatusCode, Message, and original error (if any)).
-func (e DetailedError) Error() string {
-	if e.Original == nil {
-		return fmt.Sprintf("%s#%s: %s: StatusCode=%d", e.PackageType, e.Method, e.Message, e.StatusCode)
-	}
-	return fmt.Sprintf("%s#%s: %s: StatusCode=%d -- Original Error: %v", e.PackageType, e.Method, e.Message, e.StatusCode, e.Original)
-}

vendor/github.com/Azure/go-autorest/autorest/preparer.go

@@ -1,443 +0,0 @@
-package autorest
-
-import (
-	"bytes"
-	"encoding/json"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"mime/multipart"
-	"net/http"
-	"net/url"
-	"strings"
-)
-
-const (
-	mimeTypeJSON     = "application/json"
-	mimeTypeFormPost = "application/x-www-form-urlencoded"
-
-	headerAuthorization = "Authorization"
-	headerContentType   = "Content-Type"
-	headerUserAgent     = "User-Agent"
-)
-
-// Preparer is the interface that wraps the Prepare method.
-//
-// Prepare accepts and possibly modifies an http.Request (e.g., adding Headers). Implementations
-// must ensure to not share or hold per-invocation state since Preparers may be shared and re-used.
-type Preparer interface {
-	Prepare(*http.Request) (*http.Request, error)
-}
-
-// PreparerFunc is a method that implements the Preparer interface.
-type PreparerFunc func(*http.Request) (*http.Request, error)
-
-// Prepare implements the Preparer interface on PreparerFunc.
-func (pf PreparerFunc) Prepare(r *http.Request) (*http.Request, error) {
-	return pf(r)
-}
-
-// PrepareDecorator takes and possibly decorates, by wrapping, a Preparer. Decorators may affect the
-// http.Request and pass it along or, first, pass the http.Request along then affect the result.
-type PrepareDecorator func(Preparer) Preparer
-
-// CreatePreparer creates, decorates, and returns a Preparer.
-// Without decorators, the returned Preparer returns the passed http.Request unmodified.
-// Preparers are safe to share and re-use.
-func CreatePreparer(decorators ...PrepareDecorator) Preparer {
-	return DecoratePreparer(
-		Preparer(PreparerFunc(func(r *http.Request) (*http.Request, error) { return r, nil })),
-		decorators...)
-}
-
-// DecoratePreparer accepts a Preparer and a, possibly empty, set of PrepareDecorators, which it
-// applies to the Preparer. Decorators are applied in the order received, but their affect upon the
-// request depends on whether they are a pre-decorator (change the http.Request and then pass it
-// along) or a post-decorator (pass the http.Request along and alter it on return).
-func DecoratePreparer(p Preparer, decorators ...PrepareDecorator) Preparer {
-	for _, decorate := range decorators {
-		p = decorate(p)
-	}
-	return p
-}
-
-// Prepare accepts an http.Request and a, possibly empty, set of PrepareDecorators.
-// It creates a Preparer from the decorators which it then applies to the passed http.Request.
-func Prepare(r *http.Request, decorators ...PrepareDecorator) (*http.Request, error) {
-	if r == nil {
-		return nil, NewError("autorest", "Prepare", "Invoked without an http.Request")
-	}
-	return CreatePreparer(decorators...).Prepare(r)
-}
-
-// WithNothing returns a "do nothing" PrepareDecorator that makes no changes to the passed
-// http.Request.
-func WithNothing() PrepareDecorator {
-	return func(p Preparer) Preparer {
-		return PreparerFunc(func(r *http.Request) (*http.Request, error) {
-			return p.Prepare(r)
-		})
-	}
-}
-
-// WithHeader returns a PrepareDecorator that sets the specified HTTP header of the http.Request to
-// the passed value. It canonicalizes the passed header name (via http.CanonicalHeaderKey) before
-// adding the header.
-func WithHeader(header string, value string) PrepareDecorator {
-	return func(p Preparer) Preparer {
-		return PreparerFunc(func(r *http.Request) (*http.Request, error) {
-			r, err := p.Prepare(r)
-			if err == nil {
-				if r.Header == nil {
-					r.Header = make(http.Header)
-				}
-				r.Header.Set(http.CanonicalHeaderKey(header), value)
-			}
-			return r, err
-		})
-	}
-}
-
-// WithBearerAuthorization returns a PrepareDecorator that adds an HTTP Authorization header whose
-// value is "Bearer " followed by the supplied token.
-func WithBearerAuthorization(token string) PrepareDecorator {
-	return WithHeader(headerAuthorization, fmt.Sprintf("Bearer %s", token))
-}
-
-// AsContentType returns a PrepareDecorator that adds an HTTP Content-Type header whose value
-// is the passed contentType.
-func AsContentType(contentType string) PrepareDecorator {
-	return WithHeader(headerContentType, contentType)
-}
-
-// WithUserAgent returns a PrepareDecorator that adds an HTTP User-Agent header whose value is the
-// passed string.
-func WithUserAgent(ua string) PrepareDecorator {
-	return WithHeader(headerUserAgent, ua)
-}
-
-// AsFormURLEncoded returns a PrepareDecorator that adds an HTTP Content-Type header whose value is
-// "application/x-www-form-urlencoded".
-func AsFormURLEncoded() PrepareDecorator {
-	return AsContentType(mimeTypeFormPost)
-}
-
-// AsJSON returns a PrepareDecorator that adds an HTTP Content-Type header whose value is
-// "application/json".
-func AsJSON() PrepareDecorator {
-	return AsContentType(mimeTypeJSON)
-}
-
-// WithMethod returns a PrepareDecorator that sets the HTTP method of the passed request. The
-// decorator does not validate that the passed method string is a known HTTP method.
-func WithMethod(method string) PrepareDecorator {
-	return func(p Preparer) Preparer {
-		return PreparerFunc(func(r *http.Request) (*http.Request, error) {
-			r.Method = method
-			return p.Prepare(r)
-		})
-	}
-}
-
-// AsDelete returns a PrepareDecorator that sets the HTTP method to DELETE.
-func AsDelete() PrepareDecorator { return WithMethod("DELETE") }
-
-// AsGet returns a PrepareDecorator that sets the HTTP method to GET.
-func AsGet() PrepareDecorator { return WithMethod("GET") }
-
-// AsHead returns a PrepareDecorator that sets the HTTP method to HEAD.
-func AsHead() PrepareDecorator { return WithMethod("HEAD") }
-
-// AsOptions returns a PrepareDecorator that sets the HTTP method to OPTIONS.
-func AsOptions() PrepareDecorator { return WithMethod("OPTIONS") }
-
-// AsPatch returns a PrepareDecorator that sets the HTTP method to PATCH.
-func AsPatch() PrepareDecorator { return WithMethod("PATCH") }
-
-// AsPost returns a PrepareDecorator that sets the HTTP method to POST.
-func AsPost() PrepareDecorator { return WithMethod("POST") }
-
-// AsPut returns a PrepareDecorator that sets the HTTP method to PUT.
-func AsPut() PrepareDecorator { return WithMethod("PUT") }
-
-// WithBaseURL returns a PrepareDecorator that populates the http.Request with a url.URL constructed
-// from the supplied baseUrl.
-func WithBaseURL(baseURL string) PrepareDecorator {
-	return func(p Preparer) Preparer {
-		return PreparerFunc(func(r *http.Request) (*http.Request, error) {
-			r, err := p.Prepare(r)
-			if err == nil {
-				var u *url.URL
-				if u, err = url.Parse(baseURL); err != nil {
-					return r, err
-				}
-				if u.Scheme == "" {
-					err = fmt.Errorf("autorest: No scheme detected in URL %s", baseURL)
-				}
-				if err == nil {
-					r.URL = u
-				}
-			}
-			return r, err
-		})
-	}
-}
-
-// WithCustomBaseURL returns a PrepareDecorator that replaces brace-enclosed keys within the
-// request base URL (i.e., http.Request.URL) with the corresponding values from the passed map.
-func WithCustomBaseURL(baseURL string, urlParameters map[string]interface{}) PrepareDecorator {
-	parameters := ensureValueStrings(urlParameters)
-	for key, value := range parameters {
-		baseURL = strings.Replace(baseURL, "{"+key+"}", value, -1)
-	}
-	return WithBaseURL(baseURL)
-}
-
-// WithFormData returns a PrepareDecoratore that "URL encodes" (e.g., bar=baz&foo=quux) into the
-// http.Request body.
-func WithFormData(v url.Values) PrepareDecorator {
-	return func(p Preparer) Preparer {
-		return PreparerFunc(func(r *http.Request) (*http.Request, error) {
-			r, err := p.Prepare(r)
-			if err == nil {
-				s := v.Encode()
-				r.ContentLength = int64(len(s))
-				r.Body = ioutil.NopCloser(strings.NewReader(s))
-			}
-			return r, err
-		})
-	}
-}
-
-// WithMultiPartFormData returns a PrepareDecoratore that "URL encodes" (e.g., bar=baz&foo=quux) form parameters
-// into the http.Request body.
-func WithMultiPartFormData(formDataParameters map[string]interface{}) PrepareDecorator {
-	return func(p Preparer) Preparer {
-		return PreparerFunc(func(r *http.Request) (*http.Request, error) {
-			r, err := p.Prepare(r)
-			if err == nil {
-				var body bytes.Buffer
-				writer := multipart.NewWriter(&body)
-				for key, value := range formDataParameters {
-					if rc, ok := value.(io.ReadCloser); ok {
-						var fd io.Writer
-						if fd, err = writer.CreateFormFile(key, key); err != nil {
-							return r, err
-						}
-						if _, err = io.Copy(fd, rc); err != nil {
-							return r, err
-						}
-					} else {
-						if err = writer.WriteField(key, ensureValueString(value)); err != nil {
-							return r, err
-						}
-					}
-				}
-				if err = writer.Close(); err != nil {
-					return r, err
-				}
-				if r.Header == nil {
-					r.Header = make(http.Header)
-				}
-				r.Header.Set(http.CanonicalHeaderKey(headerContentType), writer.FormDataContentType())
-				r.Body = ioutil.NopCloser(bytes.NewReader(body.Bytes()))
-				r.ContentLength = int64(body.Len())
-				return r, err
-			}
-			return r, err
-		})
-	}
-}
-
-// WithFile returns a PrepareDecorator that sends file in request body.
-func WithFile(f io.ReadCloser) PrepareDecorator {
-	return func(p Preparer) Preparer {
-		return PreparerFunc(func(r *http.Request) (*http.Request, error) {
-			r, err := p.Prepare(r)
-			if err == nil {
-				b, err := ioutil.ReadAll(f)
-				if err != nil {
-					return r, err
-				}
-				r.Body = ioutil.NopCloser(bytes.NewReader(b))
-				r.ContentLength = int64(len(b))
-			}
-			return r, err
-		})
-	}
-}
-
-// WithBool returns a PrepareDecorator that encodes the passed bool into the body of the request
-// and sets the Content-Length header.
-func WithBool(v bool) PrepareDecorator {
-	return WithString(fmt.Sprintf("%v", v))
-}
-
-// WithFloat32 returns a PrepareDecorator that encodes the passed float32 into the body of the
-// request and sets the Content-Length header.
-func WithFloat32(v float32) PrepareDecorator {
-	return WithString(fmt.Sprintf("%v", v))
-}
-
-// WithFloat64 returns a PrepareDecorator that encodes the passed float64 into the body of the
-// request and sets the Content-Length header.
-func WithFloat64(v float64) PrepareDecorator {
-	return WithString(fmt.Sprintf("%v", v))
-}
-
-// WithInt32 returns a PrepareDecorator that encodes the passed int32 into the body of the request
-// and sets the Content-Length header.
-func WithInt32(v int32) PrepareDecorator {
-	return WithString(fmt.Sprintf("%v", v))
-}
-
-// WithInt64 returns a PrepareDecorator that encodes the passed int64 into the body of the request
-// and sets the Content-Length header.
-func WithInt64(v int64) PrepareDecorator {
-	return WithString(fmt.Sprintf("%v", v))
-}
-
-// WithString returns a PrepareDecorator that encodes the passed string into the body of the request
-// and sets the Content-Length header.
-func WithString(v string) PrepareDecorator {
-	return func(p Preparer) Preparer {
-		return PreparerFunc(func(r *http.Request) (*http.Request, error) {
-			r, err := p.Prepare(r)
-			if err == nil {
-				r.ContentLength = int64(len(v))
-				r.Body = ioutil.NopCloser(strings.NewReader(v))
-			}
-			return r, err
-		})
-	}
-}
-
-// WithJSON returns a PrepareDecorator that encodes the data passed as JSON into the body of the
-// request and sets the Content-Length header.
-func WithJSON(v interface{}) PrepareDecorator {
-	return func(p Preparer) Preparer {
-		return PreparerFunc(func(r *http.Request) (*http.Request, error) {
-			r, err := p.Prepare(r)
-			if err == nil {
-				b, err := json.Marshal(v)
-				if err == nil {
-					r.ContentLength = int64(len(b))
-					r.Body = ioutil.NopCloser(bytes.NewReader(b))
-				}
-			}
-			return r, err
-		})
-	}
-}
-
-// WithPath returns a PrepareDecorator that adds the supplied path to the request URL. If the path
-// is absolute (that is, it begins with a "/"), it replaces the existing path.
-func WithPath(path string) PrepareDecorator {
-	return func(p Preparer) Preparer {
-		return PreparerFunc(func(r *http.Request) (*http.Request, error) {
-			r, err := p.Prepare(r)
-			if err == nil {
-				if r.URL == nil {
-					return r, NewError("autorest", "WithPath", "Invoked with a nil URL")
-				}
-				if r.URL, err = parseURL(r.URL, path); err != nil {
-					return r, err
-				}
-			}
-			return r, err
-		})
-	}
-}
-
-// WithEscapedPathParameters returns a PrepareDecorator that replaces brace-enclosed keys within the
-// request path (i.e., http.Request.URL.Path) with the corresponding values from the passed map. The
-// values will be escaped (aka URL encoded) before insertion into the path.
-func WithEscapedPathParameters(path string, pathParameters map[string]interface{}) PrepareDecorator {
-	parameters := escapeValueStrings(ensureValueStrings(pathParameters))
-	return func(p Preparer) Preparer {
-		return PreparerFunc(func(r *http.Request) (*http.Request, error) {
-			r, err := p.Prepare(r)
-			if err == nil {
-				if r.URL == nil {
-					return r, NewError("autorest", "WithEscapedPathParameters", "Invoked with a nil URL")
-				}
-				for key, value := range parameters {
-					path = strings.Replace(path, "{"+key+"}", value, -1)
-				}
-				if r.URL, err = parseURL(r.URL, path); err != nil {
-					return r, err
-				}
-			}
-			return r, err
-		})
-	}
-}
-
-// WithPathParameters returns a PrepareDecorator that replaces brace-enclosed keys within the
-// request path (i.e., http.Request.URL.Path) with the corresponding values from the passed map.
-func WithPathParameters(path string, pathParameters map[string]interface{}) PrepareDecorator {
-	parameters := ensureValueStrings(pathParameters)
-	return func(p Preparer) Preparer {
-		return PreparerFunc(func(r *http.Request) (*http.Request, error) {
-			r, err := p.Prepare(r)
-			if err == nil {
-				if r.URL == nil {
-					return r, NewError("autorest", "WithPathParameters", "Invoked with a nil URL")
-				}
-				for key, value := range parameters {
-					path = strings.Replace(path, "{"+key+"}", value, -1)
-				}
-
-				if r.URL, err = parseURL(r.URL, path); err != nil {
-					return r, err
-				}
-			}
-			return r, err
-		})
-	}
-}
-
-func parseURL(u *url.URL, path string) (*url.URL, error) {
-	p := strings.TrimRight(u.String(), "/")
-	if !strings.HasPrefix(path, "/") {
-		path = "/" + path
-	}
-	return url.Parse(p + path)
-}
-
-// WithQueryParameters returns a PrepareDecorators that encodes and applies the query parameters
-// given in the supplied map (i.e., key=value).
-func WithQueryParameters(queryParameters map[string]interface{}) PrepareDecorator {
-	parameters := ensureValueStrings(queryParameters)
-	return func(p Preparer) Preparer {
-		return PreparerFunc(func(r *http.Request) (*http.Request, error) {
-			r, err := p.Prepare(r)
-			if err == nil {
-				if r.URL == nil {
-					return r, NewError("autorest", "WithQueryParameters", "Invoked with a nil URL")
-				}
-				v := r.URL.Query()
-				for key, value := range parameters {
-					v.Add(key, value)
-				}
-				r.URL.RawQuery = createQuery(v)
-			}
-			return r, err
-		})
-	}
-}
-
-// Authorizer is the interface that provides a PrepareDecorator used to supply request
-// authorization. Most often, the Authorizer decorator runs last so it has access to the full
-// state of the formed HTTP request.
-type Authorizer interface {
-	WithAuthorization() PrepareDecorator
-}
-
-// NullAuthorizer implements a default, "do nothing" Authorizer.
-type NullAuthorizer struct{}
-
-// WithAuthorization returns a PrepareDecorator that does nothing.
-func (na NullAuthorizer) WithAuthorization() PrepareDecorator {
-	return WithNothing()
-}

vendor/github.com/Azure/go-autorest/autorest/responder.go

@@ -1,236 +0,0 @@
-package autorest
-
-import (
-	"bytes"
-	"encoding/json"
-	"encoding/xml"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"net/http"
-	"strings"
-)
-
-// Responder is the interface that wraps the Respond method.
-//
-// Respond accepts and reacts to an http.Response. Implementations must ensure to not share or hold
-// state since Responders may be shared and re-used.
-type Responder interface {
-	Respond(*http.Response) error
-}
-
-// ResponderFunc is a method that implements the Responder interface.
-type ResponderFunc func(*http.Response) error
-
-// Respond implements the Responder interface on ResponderFunc.
-func (rf ResponderFunc) Respond(r *http.Response) error {
-	return rf(r)
-}
-
-// RespondDecorator takes and possibly decorates, by wrapping, a Responder. Decorators may react to
-// the http.Response and pass it along or, first, pass the http.Response along then react.
-type RespondDecorator func(Responder) Responder
-
-// CreateResponder creates, decorates, and returns a Responder. Without decorators, the returned
-// Responder returns the passed http.Response unmodified. Responders may or may not be safe to share
-// and re-used: It depends on the applied decorators. For example, a standard decorator that closes
-// the response body is fine to share whereas a decorator that reads the body into a passed struct
-// is not.
-//
-// To prevent memory leaks, ensure that at least one Responder closes the response body.
-func CreateResponder(decorators ...RespondDecorator) Responder {
-	return DecorateResponder(
-		Responder(ResponderFunc(func(r *http.Response) error { return nil })),
-		decorators...)
-}
-
-// DecorateResponder accepts a Responder and a, possibly empty, set of RespondDecorators, which it
-// applies to the Responder. Decorators are applied in the order received, but their affect upon the
-// request depends on whether they are a pre-decorator (react to the http.Response and then pass it
-// along) or a post-decorator (pass the http.Response along and then react).
-func DecorateResponder(r Responder, decorators ...RespondDecorator) Responder {
-	for _, decorate := range decorators {
-		r = decorate(r)
-	}
-	return r
-}
-
-// Respond accepts an http.Response and a, possibly empty, set of RespondDecorators.
-// It creates a Responder from the decorators it then applies to the passed http.Response.
-func Respond(r *http.Response, decorators ...RespondDecorator) error {
-	if r == nil {
-		return nil
-	}
-	return CreateResponder(decorators...).Respond(r)
-}
-
-// ByIgnoring returns a RespondDecorator that ignores the passed http.Response passing it unexamined
-// to the next RespondDecorator.
-func ByIgnoring() RespondDecorator {
-	return func(r Responder) Responder {
-		return ResponderFunc(func(resp *http.Response) error {
-			return r.Respond(resp)
-		})
-	}
-}
-
-// ByCopying copies the contents of the http.Response Body into the passed bytes.Buffer as
-// the Body is read.
-func ByCopying(b *bytes.Buffer) RespondDecorator {
-	return func(r Responder) Responder {
-		return ResponderFunc(func(resp *http.Response) error {
-			err := r.Respond(resp)
-			if err == nil && resp != nil && resp.Body != nil {
-				resp.Body = TeeReadCloser(resp.Body, b)
-			}
-			return err
-		})
-	}
-}
-
-// ByDiscardingBody returns a RespondDecorator that first invokes the passed Responder after which
-// it copies the remaining bytes (if any) in the response body to ioutil.Discard. Since the passed
-// Responder is invoked prior to discarding the response body, the decorator may occur anywhere
-// within the set.
-func ByDiscardingBody() RespondDecorator {
-	return func(r Responder) Responder {
-		return ResponderFunc(func(resp *http.Response) error {
-			err := r.Respond(resp)
-			if err == nil && resp != nil && resp.Body != nil {
-				if _, err := io.Copy(ioutil.Discard, resp.Body); err != nil {
-					return fmt.Errorf("Error discarding the response body: %v", err)
-				}
-			}
-			return err
-		})
-	}
-}
-
-// ByClosing returns a RespondDecorator that first invokes the passed Responder after which it
-// closes the response body. Since the passed Responder is invoked prior to closing the response
-// body, the decorator may occur anywhere within the set.
-func ByClosing() RespondDecorator {
-	return func(r Responder) Responder {
-		return ResponderFunc(func(resp *http.Response) error {
-			err := r.Respond(resp)
-			if resp != nil && resp.Body != nil {
-				if err := resp.Body.Close(); err != nil {
-					return fmt.Errorf("Error closing the response body: %v", err)
-				}
-			}
-			return err
-		})
-	}
-}
-
-// ByClosingIfError returns a RespondDecorator that first invokes the passed Responder after which
-// it closes the response if the passed Responder returns an error and the response body exists.
-func ByClosingIfError() RespondDecorator {
-	return func(r Responder) Responder {
-		return ResponderFunc(func(resp *http.Response) error {
-			err := r.Respond(resp)
-			if err != nil && resp != nil && resp.Body != nil {
-				if err := resp.Body.Close(); err != nil {
-					return fmt.Errorf("Error closing the response body: %v", err)
-				}
-			}
-			return err
-		})
-	}
-}
-
-// ByUnmarshallingJSON returns a RespondDecorator that decodes a JSON document returned in the
-// response Body into the value pointed to by v.
-func ByUnmarshallingJSON(v interface{}) RespondDecorator {
-	return func(r Responder) Responder {
-		return ResponderFunc(func(resp *http.Response) error {
-			err := r.Respond(resp)
-			if err == nil {
-				b, errInner := ioutil.ReadAll(resp.Body)
-				// Some responses might include a BOM, remove for successful unmarshalling
-				b = bytes.TrimPrefix(b, []byte("\xef\xbb\xbf"))
-				if errInner != nil {
-					err = fmt.Errorf("Error occurred reading http.Response#Body - Error = '%v'", errInner)
-				} else if len(strings.Trim(string(b), " ")) > 0 {
-					errInner = json.Unmarshal(b, v)
-					if errInner != nil {
-						err = fmt.Errorf("Error occurred unmarshalling JSON - Error = '%v' JSON = '%s'", errInner, string(b))
-					}
-				}
-			}
-			return err
-		})
-	}
-}
-
-// ByUnmarshallingXML returns a RespondDecorator that decodes a XML document returned in the
-// response Body into the value pointed to by v.
-func ByUnmarshallingXML(v interface{}) RespondDecorator {
-	return func(r Responder) Responder {
-		return ResponderFunc(func(resp *http.Response) error {
-			err := r.Respond(resp)
-			if err == nil {
-				b, errInner := ioutil.ReadAll(resp.Body)
-				if errInner != nil {
-					err = fmt.Errorf("Error occurred reading http.Response#Body - Error = '%v'", errInner)
-				} else {
-					errInner = xml.Unmarshal(b, v)
-					if errInner != nil {
-						err = fmt.Errorf("Error occurred unmarshalling Xml - Error = '%v' Xml = '%s'", errInner, string(b))
-					}
-				}
-			}
-			return err
-		})
-	}
-}
-
-// WithErrorUnlessStatusCode returns a RespondDecorator that emits an error unless the response
-// StatusCode is among the set passed. On error, response body is fully read into a buffer and
-// presented in the returned error, as well as in the response body.
-func WithErrorUnlessStatusCode(codes ...int) RespondDecorator {
-	return func(r Responder) Responder {
-		return ResponderFunc(func(resp *http.Response) error {
-			err := r.Respond(resp)
-			if err == nil && !ResponseHasStatusCode(resp, codes...) {
-				derr := NewErrorWithResponse("autorest", "WithErrorUnlessStatusCode", resp, "%v %v failed with %s",
-					resp.Request.Method,
-					resp.Request.URL,
-					resp.Status)
-				if resp.Body != nil {
-					defer resp.Body.Close()
-					b, _ := ioutil.ReadAll(resp.Body)
-					derr.ServiceError = b
-					resp.Body = ioutil.NopCloser(bytes.NewReader(b))
-				}
-				err = derr
-			}
-			return err
-		})
-	}
-}
-
-// WithErrorUnlessOK returns a RespondDecorator that emits an error if the response StatusCode is
-// anything other than HTTP 200.
-func WithErrorUnlessOK() RespondDecorator {
-	return WithErrorUnlessStatusCode(http.StatusOK)
-}
-
-// ExtractHeader extracts all values of the specified header from the http.Response. It returns an
-// empty string slice if the passed http.Response is nil or the header does not exist.
-func ExtractHeader(header string, resp *http.Response) []string {
-	if resp != nil && resp.Header != nil {
-		return resp.Header[http.CanonicalHeaderKey(header)]
-	}
-	return nil
-}
-
-// ExtractHeaderValue extracts the first value of the specified header from the http.Response. It
-// returns an empty string if the passed http.Response is nil or the header does not exist.
-func ExtractHeaderValue(header string, resp *http.Response) string {
-	h := ExtractHeader(header, resp)
-	if len(h) > 0 {
-		return h[0]
-	}
-	return ""
-}

vendor/github.com/Azure/go-autorest/autorest/sender.go

@@ -1,270 +0,0 @@
-package autorest
-
-import (
-	"bytes"
-	"fmt"
-	"io/ioutil"
-	"log"
-	"math"
-	"net/http"
-	"time"
-)
-
-// Sender is the interface that wraps the Do method to send HTTP requests.
-//
-// The standard http.Client conforms to this interface.
-type Sender interface {
-	Do(*http.Request) (*http.Response, error)
-}
-
-// SenderFunc is a method that implements the Sender interface.
-type SenderFunc func(*http.Request) (*http.Response, error)
-
-// Do implements the Sender interface on SenderFunc.
-func (sf SenderFunc) Do(r *http.Request) (*http.Response, error) {
-	return sf(r)
-}
-
-// SendDecorator takes and possibily decorates, by wrapping, a Sender. Decorators may affect the
-// http.Request and pass it along or, first, pass the http.Request along then react to the
-// http.Response result.
-type SendDecorator func(Sender) Sender
-
-// CreateSender creates, decorates, and returns, as a Sender, the default http.Client.
-func CreateSender(decorators ...SendDecorator) Sender {
-	return DecorateSender(&http.Client{}, decorators...)
-}
-
-// DecorateSender accepts a Sender and a, possibly empty, set of SendDecorators, which is applies to
-// the Sender. Decorators are applied in the order received, but their affect upon the request
-// depends on whether they are a pre-decorator (change the http.Request and then pass it along) or a
-// post-decorator (pass the http.Request along and react to the results in http.Response).
-func DecorateSender(s Sender, decorators ...SendDecorator) Sender {
-	for _, decorate := range decorators {
-		s = decorate(s)
-	}
-	return s
-}
-
-// Send sends, by means of the default http.Client, the passed http.Request, returning the
-// http.Response and possible error. It also accepts a, possibly empty, set of SendDecorators which
-// it will apply the http.Client before invoking the Do method.
-//
-// Send is a convenience method and not recommended for production. Advanced users should use
-// SendWithSender, passing and sharing their own Sender (e.g., instance of http.Client).
-//
-// Send will not poll or retry requests.
-func Send(r *http.Request, decorators ...SendDecorator) (*http.Response, error) {
-	return SendWithSender(&http.Client{}, r, decorators...)
-}
-
-// SendWithSender sends the passed http.Request, through the provided Sender, returning the
-// http.Response and possible error. It also accepts a, possibly empty, set of SendDecorators which
-// it will apply the http.Client before invoking the Do method.
-//
-// SendWithSender will not poll or retry requests.
-func SendWithSender(s Sender, r *http.Request, decorators ...SendDecorator) (*http.Response, error) {
-	return DecorateSender(s, decorators...).Do(r)
-}
-
-// AfterDelay returns a SendDecorator that delays for the passed time.Duration before
-// invoking the Sender. The delay may be terminated by closing the optional channel on the
-// http.Request. If canceled, no further Senders are invoked.
-func AfterDelay(d time.Duration) SendDecorator {
-	return func(s Sender) Sender {
-		return SenderFunc(func(r *http.Request) (*http.Response, error) {
-			if !DelayForBackoff(d, 0, r.Cancel) {
-				return nil, fmt.Errorf("autorest: AfterDelay canceled before full delay")
-			}
-			return s.Do(r)
-		})
-	}
-}
-
-// AsIs returns a SendDecorator that invokes the passed Sender without modifying the http.Request.
-func AsIs() SendDecorator {
-	return func(s Sender) Sender {
-		return SenderFunc(func(r *http.Request) (*http.Response, error) {
-			return s.Do(r)
-		})
-	}
-}
-
-// DoCloseIfError returns a SendDecorator that first invokes the passed Sender after which
-// it closes the response if the passed Sender returns an error and the response body exists.
-func DoCloseIfError() SendDecorator {
-	return func(s Sender) Sender {
-		return SenderFunc(func(r *http.Request) (*http.Response, error) {
-			resp, err := s.Do(r)
-			if err != nil {
-				Respond(resp, ByDiscardingBody(), ByClosing())
-			}
-			return resp, err
-		})
-	}
-}
-
-// DoErrorIfStatusCode returns a SendDecorator that emits an error if the response StatusCode is
-// among the set passed. Since these are artificial errors, the response body may still require
-// closing.
-func DoErrorIfStatusCode(codes ...int) SendDecorator {
-	return func(s Sender) Sender {
-		return SenderFunc(func(r *http.Request) (*http.Response, error) {
-			resp, err := s.Do(r)
-			if err == nil && ResponseHasStatusCode(resp, codes...) {
-				err = NewErrorWithResponse("autorest", "DoErrorIfStatusCode", resp, "%v %v failed with %s",
-					resp.Request.Method,
-					resp.Request.URL,
-					resp.Status)
-			}
-			return resp, err
-		})
-	}
-}
-
-// DoErrorUnlessStatusCode returns a SendDecorator that emits an error unless the response
-// StatusCode is among the set passed. Since these are artificial errors, the response body
-// may still require closing.
-func DoErrorUnlessStatusCode(codes ...int) SendDecorator {
-	return func(s Sender) Sender {
-		return SenderFunc(func(r *http.Request) (*http.Response, error) {
-			resp, err := s.Do(r)
-			if err == nil && !ResponseHasStatusCode(resp, codes...) {
-				err = NewErrorWithResponse("autorest", "DoErrorUnlessStatusCode", resp, "%v %v failed with %s",
-					resp.Request.Method,
-					resp.Request.URL,
-					resp.Status)
-			}
-			return resp, err
-		})
-	}
-}
-
-// DoPollForStatusCodes returns a SendDecorator that polls if the http.Response contains one of the
-// passed status codes. It expects the http.Response to contain a Location header providing the
-// URL at which to poll (using GET) and will poll until the time passed is equal to or greater than
-// the supplied duration. It will delay between requests for the duration specified in the
-// RetryAfter header or, if the header is absent, the passed delay. Polling may be canceled by
-// closing the optional channel on the http.Request.
-func DoPollForStatusCodes(duration time.Duration, delay time.Duration, codes ...int) SendDecorator {
-	return func(s Sender) Sender {
-		return SenderFunc(func(r *http.Request) (resp *http.Response, err error) {
-			resp, err = s.Do(r)
-
-			if err == nil && ResponseHasStatusCode(resp, codes...) {
-				r, err = NewPollingRequest(resp, r.Cancel)
-
-				for err == nil && ResponseHasStatusCode(resp, codes...) {
-					Respond(resp,
-						ByDiscardingBody(),
-						ByClosing())
-					resp, err = SendWithSender(s, r,
-						AfterDelay(GetRetryAfter(resp, delay)))
-				}
-			}
-
-			return resp, err
-		})
-	}
-}
-
-// DoRetryForAttempts returns a SendDecorator that retries a failed request for up to the specified
-// number of attempts, exponentially backing off between requests using the supplied backoff
-// time.Duration (which may be zero). Retrying may be canceled by closing the optional channel on
-// the http.Request.
-func DoRetryForAttempts(attempts int, backoff time.Duration) SendDecorator {
-	return func(s Sender) Sender {
-		return SenderFunc(func(r *http.Request) (resp *http.Response, err error) {
-			for attempt := 0; attempt < attempts; attempt++ {
-				resp, err = s.Do(r)
-				if err == nil {
-					return resp, err
-				}
-				DelayForBackoff(backoff, attempt, r.Cancel)
-			}
-			return resp, err
-		})
-	}
-}
-
-// DoRetryForStatusCodes returns a SendDecorator that retries for specified statusCodes for up to the specified
-// number of attempts, exponentially backing off between requests using the supplied backoff
-// time.Duration (which may be zero). Retrying may be canceled by closing the optional channel on
-// the http.Request.
-func DoRetryForStatusCodes(attempts int, backoff time.Duration, codes ...int) SendDecorator {
-	return func(s Sender) Sender {
-		return SenderFunc(func(r *http.Request) (resp *http.Response, err error) {
-			b := []byte{}
-			if r.Body != nil {
-				b, err = ioutil.ReadAll(r.Body)
-				if err != nil {
-					return resp, err
-				}
-			}
-
-			// Increment to add the first call (attempts denotes number of retries)
-			attempts++
-			for attempt := 0; attempt < attempts; attempt++ {
-				r.Body = ioutil.NopCloser(bytes.NewBuffer(b))
-				resp, err = s.Do(r)
-				if err != nil || !ResponseHasStatusCode(resp, codes...) {
-					return resp, err
-				}
-				DelayForBackoff(backoff, attempt, r.Cancel)
-			}
-			return resp, err
-		})
-	}
-}
-
-// DoRetryForDuration returns a SendDecorator that retries the request until the total time is equal
-// to or greater than the specified duration, exponentially backing off between requests using the
-// supplied backoff time.Duration (which may be zero). Retrying may be canceled by closing the
-// optional channel on the http.Request.
-func DoRetryForDuration(d time.Duration, backoff time.Duration) SendDecorator {
-	return func(s Sender) Sender {
-		return SenderFunc(func(r *http.Request) (resp *http.Response, err error) {
-			end := time.Now().Add(d)
-			for attempt := 0; time.Now().Before(end); attempt++ {
-				resp, err = s.Do(r)
-				if err == nil {
-					return resp, err
-				}
-				DelayForBackoff(backoff, attempt, r.Cancel)
-			}
-			return resp, err
-		})
-	}
-}
-
-// WithLogging returns a SendDecorator that implements simple before and after logging of the
-// request.
-func WithLogging(logger *log.Logger) SendDecorator {
-	return func(s Sender) Sender {
-		return SenderFunc(func(r *http.Request) (*http.Response, error) {
-			logger.Printf("Sending %s %s", r.Method, r.URL)
-			resp, err := s.Do(r)
-			if err != nil {
-				logger.Printf("%s %s received error '%v'", r.Method, r.URL, err)
-			} else {
-				logger.Printf("%s %s received %s", r.Method, r.URL, resp.Status)
-			}
-			return resp, err
-		})
-	}
-}
-
-// DelayForBackoff invokes time.After for the supplied backoff duration raised to the power of
-// passed attempt (i.e., an exponential backoff delay). Backoff duration is in seconds and can set
-// to zero for no delay. The delay may be canceled by closing the passed channel. If terminated early,
-// returns false.
-// Note: Passing attempt 1 will result in doubling "backoff" duration. Treat this as a zero-based attempt
-// count.
-func DelayForBackoff(backoff time.Duration, attempt int, cancel <-chan struct{}) bool {
-	select {
-	case <-time.After(time.Duration(backoff.Seconds()*math.Pow(2, float64(attempt))) * time.Second):
-		return true
-	case <-cancel:
-		return false
-	}
-}

vendor/github.com/Azure/go-autorest/autorest/utility.go

@@ -1,178 +0,0 @@
-package autorest
-
-import (
-	"bytes"
-	"encoding/json"
-	"encoding/xml"
-	"fmt"
-	"io"
-	"net/url"
-	"reflect"
-	"sort"
-	"strings"
-)
-
-// EncodedAs is a series of constants specifying various data encodings
-type EncodedAs string
-
-const (
-	// EncodedAsJSON states that data is encoded as JSON
-	EncodedAsJSON EncodedAs = "JSON"
-
-	// EncodedAsXML states that data is encoded as Xml
-	EncodedAsXML EncodedAs = "XML"
-)
-
-// Decoder defines the decoding method json.Decoder and xml.Decoder share
-type Decoder interface {
-	Decode(v interface{}) error
-}
-
-// NewDecoder creates a new decoder appropriate to the passed encoding.
-// encodedAs specifies the type of encoding and r supplies the io.Reader containing the
-// encoded data.
-func NewDecoder(encodedAs EncodedAs, r io.Reader) Decoder {
-	if encodedAs == EncodedAsJSON {
-		return json.NewDecoder(r)
-	} else if encodedAs == EncodedAsXML {
-		return xml.NewDecoder(r)
-	}
-	return nil
-}
-
-// CopyAndDecode decodes the data from the passed io.Reader while making a copy. Having a copy
-// is especially useful if there is a chance the data will fail to decode.
-// encodedAs specifies the expected encoding, r provides the io.Reader to the data, and v
-// is the decoding destination.
-func CopyAndDecode(encodedAs EncodedAs, r io.Reader, v interface{}) (bytes.Buffer, error) {
-	b := bytes.Buffer{}
-	return b, NewDecoder(encodedAs, io.TeeReader(r, &b)).Decode(v)
-}
-
-// TeeReadCloser returns a ReadCloser that writes to w what it reads from rc.
-// It utilizes io.TeeReader to copy the data read and has the same behavior when reading.
-// Further, when it is closed, it ensures that rc is closed as well.
-func TeeReadCloser(rc io.ReadCloser, w io.Writer) io.ReadCloser {
-	return &teeReadCloser{rc, io.TeeReader(rc, w)}
-}
-
-type teeReadCloser struct {
-	rc io.ReadCloser
-	r  io.Reader
-}
-
-func (t *teeReadCloser) Read(p []byte) (int, error) {
-	return t.r.Read(p)
-}
-
-func (t *teeReadCloser) Close() error {
-	return t.rc.Close()
-}
-
-func containsInt(ints []int, n int) bool {
-	for _, i := range ints {
-		if i == n {
-			return true
-		}
-	}
-	return false
-}
-
-func escapeValueStrings(m map[string]string) map[string]string {
-	for key, value := range m {
-		m[key] = url.QueryEscape(value)
-	}
-	return m
-}
-
-func ensureValueStrings(mapOfInterface map[string]interface{}) map[string]string {
-	mapOfStrings := make(map[string]string)
-	for key, value := range mapOfInterface {
-		mapOfStrings[key] = ensureValueString(value)
-	}
-	return mapOfStrings
-}
-
-func ensureValueString(value interface{}) string {
-	if value == nil {
-		return ""
-	}
-	switch v := value.(type) {
-	case string:
-		return v
-	case []byte:
-		return string(v)
-	default:
-		return fmt.Sprintf("%v", v)
-	}
-}
-
-// MapToValues method converts map[string]interface{} to url.Values.
-func MapToValues(m map[string]interface{}) url.Values {
-	v := url.Values{}
-	for key, value := range m {
-		x := reflect.ValueOf(value)
-		if x.Kind() == reflect.Array || x.Kind() == reflect.Slice {
-			for i := 0; i < x.Len(); i++ {
-				v.Add(key, ensureValueString(x.Index(i)))
-			}
-		} else {
-			v.Add(key, ensureValueString(value))
-		}
-	}
-	return v
-}
-
-// String method converts interface v to string. If interface is a list, it
-// joins list elements using separator.
-func String(v interface{}, sep ...string) string {
-	if len(sep) > 0 {
-		return ensureValueString(strings.Join(v.([]string), sep[0]))
-	}
-	return ensureValueString(v)
-}
-
-// Encode method encodes url path and query parameters.
-func Encode(location string, v interface{}, sep ...string) string {
-	s := String(v, sep...)
-	switch strings.ToLower(location) {
-	case "path":
-		return pathEscape(s)
-	case "query":
-		return queryEscape(s)
-	default:
-		return s
-	}
-}
-
-func pathEscape(s string) string {
-	return strings.Replace(url.QueryEscape(s), "+", "%20", -1)
-}
-
-func queryEscape(s string) string {
-	return url.QueryEscape(s)
-}
-
-// This method is same as Encode() method of "net/url" go package,
-// except it does not encode the query parameters because they
-// already come encoded. It formats values map in query format (bar=foo&a=b).
-func createQuery(v url.Values) string {
-	var buf bytes.Buffer
-	keys := make([]string, 0, len(v))
-	for k := range v {
-		keys = append(keys, k)
-	}
-	sort.Strings(keys)
-	for _, k := range keys {
-		vs := v[k]
-		prefix := url.QueryEscape(k) + "="
-		for _, v := range vs {
-			if buf.Len() > 0 {
-				buf.WriteByte('&')
-			}
-			buf.WriteString(prefix)
-			buf.WriteString(v)
-		}
-	}
-	return buf.String()
-}

vendor/github.com/Azure/go-autorest/autorest/version.go

@@ -1,23 +0,0 @@
-package autorest
-
-import (
-	"fmt"
-)
-
-const (
-	major        = "7"
-	minor        = "3"
-	patch        = "0"
-	tag          = ""
-	semVerFormat = "%s.%s.%s%s"
-)
-
-var version string
-
-// Version returns the semantic version (see http://semver.org).
-func Version() string {
-	if version == "" {
-		version = fmt.Sprintf(semVerFormat, major, minor, patch, tag)
-	}
-	return version
-}

vendor/vendor.json

@@ -21,28 +21,16 @@
 			"revisionTime": "2016-08-11T21:22:31Z"
 		},
 		{
-			"checksumSHA1": "24EW3PGLGVSy/5joAOZdHzN/S2E=",
-			"path": "github.com/Azure/azure-storage-go",
-			"revision": "12ccaadb081cdd217702067d28da9a7ff4305239",
-			"revisionTime": "2017-03-02T22:15:08Z"
+			"checksumSHA1": "z+M6FYl9EKsoZZMLcT0Ktwfk8pI=",
+			"path": "github.com/Azure/azure-pipeline-go/pipeline",
+			"revision": "7571e8eb0876932ab505918ff7ed5107773e5ee2",
+			"revisionTime": "2018-06-07T21:19:23Z"
 		},
 		{
-			"checksumSHA1": "+sxS3YEvxf1VxlRskIdXFRWq9rY=",
-			"path": "github.com/Azure/go-autorest/autorest",
-			"revision": "ec5f4903f77ed9927ac95b19ab8e44ada64c1356",
-			"revisionTime": "2017-02-15T19:58:14Z"
-		},
-		{
-			"checksumSHA1": "ghrnc4vZv6q8zzeakZnrS8CGFhE=",
-			"path": "github.com/Azure/go-autorest/autorest/azure",
-			"revision": "ec5f4903f77ed9927ac95b19ab8e44ada64c1356",
-			"revisionTime": "2017-02-15T19:58:14Z"
-		},
-		{
-			"checksumSHA1": "q9Qz8PAxK5FTOZwgYKe5Lj38u4c=",
-			"path": "github.com/Azure/go-autorest/autorest/date",
-			"revision": "ec5f4903f77ed9927ac95b19ab8e44ada64c1356",
-			"revisionTime": "2017-02-15T19:58:14Z"
+			"checksumSHA1": "5nsGu77r69lloEWbFhMof2UA9rY=",
+			"path": "github.com/Azure/azure-storage-blob-go/2018-03-28/azblob",
+			"revision": "eaae161d9d5e07363f04ddb19d84d57efc66d1a1",
+			"revisionTime": "2018-07-12T00:56:34Z"
 		},
 		{
 			"checksumSHA1": "QC55lHNOv1+UAL2xtIHw17MJ8J8=",