From 7110856b184e7bf89b0c8b753bde01bbf836072f Mon Sep 17 00:00:00 2001
From: Jeff Carr <jcarr@wit.com>
Date: Sat, 25 May 2019 13:10:25 -0700
Subject: [PATCH] allow 'OPTIONS' aka 'CORS' on http sockets

Signed-off-by: Jeff Carr <jcarr@wit.com>
---
 emaild/Makefile   |  4 +++-
 emaild/alfonso.go | 10 +++++++++-
 emaild/server.go  | 25 ++-----------------------
 3 files changed, 14 insertions(+), 25 deletions(-)

diff --git a/emaild/Makefile b/emaild/Makefile
index 28eca96..e66c826 100644
--- a/emaild/Makefile
+++ b/emaild/Makefile
@@ -3,7 +3,9 @@
 all:
 	go run alfonso.go
 
-run:
+# this is the raw socket server. it will
+# show all socket connects recieved
+raw-socket:
 	go run server.go
 
 build:
diff --git a/emaild/alfonso.go b/emaild/alfonso.go
index d73eaa7..86a2635 100644
--- a/emaild/alfonso.go
+++ b/emaild/alfonso.go
@@ -13,6 +13,10 @@ func handler(w http.ResponseWriter, r *http.Request) {
 }
 
 func handler2(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Access-Control-Allow-Origin", "*")
+	w.Header().Set("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, DELETE")
+	w.Header().Set("Access-Control-Allow-Headers", "Accept, Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token, Authorization")
+
 	spew.Dump(r)
 	fmt.Fprintf(w, "Hi there, handler2 %s!", r.URL.Path[1:])
 
@@ -30,9 +34,13 @@ func handler2(w http.ResponseWriter, r *http.Request) {
 	case http.MethodDelete:
 		// Remove the record.
 		log.Printf("handler2 DELETE")
+	case http.MethodOptions:
+		// Remove the record.
+		log.Printf("handler2 OPTIONS")
 	default:
 		// Give an error message.
-		log.Printf("handler2 DEFAULT")
+		log.Printf("handler2 DEFAULT Method=", r.Method)
+		spew.Dump(r.Method)
 	}
 }
 
diff --git a/emaild/server.go b/emaild/server.go
index 14da621..cd9d4c6 100644
--- a/emaild/server.go
+++ b/emaild/server.go
@@ -20,7 +20,7 @@ import "github.com/davecgh/go-spew/spew"
 
 const (
 	CONN_HOST = "localhost"
-	CONN_PORT = "3333"
+	CONN_PORT = "9000"
 	CONN_TYPE = "tcp"
 )
 
@@ -38,20 +38,6 @@ func random() int {
 }
 
 func main() {
-/*
-	// redirect all this output to systemd
-	dnssecsocket.UseJournalctl()
-
-	hostname := fqdn.Get()
-	log.Println("FQDN hostname is", hostname)
-
-	// lookup the IP address from DNS
-	dnsRR := dnssecsocket.Dnstrace(hostname, "AAAA")
-	spew.Dump(dnsRR)
-	ipaddr := dns.Field(dnsRR, 1)
-	log.Println("ipaddr", ipaddr)
-*/
-
 	listenstr :=  "[" + "localhost" + "]:" + CONN_PORT
 	log.Println("listenstr", listenstr)
 
@@ -103,6 +89,7 @@ func HandleConnection(conn *net.TCPConn) {
 	log.Println("Waiting for the client to tell me its name")
 	netData, err := newreader.ReadString('\n')
 	spew.Dump(netData)
+	log.Println("netData =", string(netData))
 	if err != nil {
 		log.Println(err)
 		return
@@ -124,14 +111,6 @@ func HandleConnection(conn *net.TCPConn) {
 		}
 		log.Println("Recieved: ", temp)
 
-		if (temp == "list") {
-			log.Println("Should run list here")
-		}
-
-		if (temp == "cpuinfo") {
-			log.Println("Should cat /proc/cpuinfo")
-		}
-
 		result := strconv.Itoa(random()) + "\n"
 		conn.Write([]byte(string(result)))
 		return