463 lines
11 KiB
Go
463 lines
11 KiB
Go
/*
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This file is part of go-ethereum
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go-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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go-ethereum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @authors
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* Jeffrey Wilcke <i@jev.io>
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*/
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package main
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import "C"
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import (
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"encoding/json"
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"fmt"
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"io/ioutil"
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"math/big"
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"path"
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"runtime"
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"sort"
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"time"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/eth"
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/logger"
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"github.com/ethereum/go-ethereum/ui/qt/qwhisper"
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"github.com/ethereum/go-ethereum/xeth"
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"github.com/obscuren/qml"
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)
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var guilogger = logger.NewLogger("GUI")
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type ServEv byte
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const (
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setup ServEv = iota
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update
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)
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type Gui struct {
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// The main application window
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win *qml.Window
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// QML Engine
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engine *qml.Engine
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component *qml.Common
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// The ethereum interface
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eth *eth.Ethereum
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serviceEvents chan ServEv
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// The public Ethereum library
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uiLib *UiLib
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whisper *qwhisper.Whisper
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txDb *ethdb.LDBDatabase
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open bool
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xeth *xeth.XEth
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Session string
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plugins map[string]plugin
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}
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// Create GUI, but doesn't start it
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func NewWindow(ethereum *eth.Ethereum) *Gui {
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db, err := ethdb.NewLDBDatabase(path.Join(ethereum.DataDir, "tx_database"))
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if err != nil {
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panic(err)
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}
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xeth := xeth.New(ethereum, nil)
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gui := &Gui{eth: ethereum,
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txDb: db,
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xeth: xeth,
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open: false,
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plugins: make(map[string]plugin),
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serviceEvents: make(chan ServEv, 1),
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}
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data, _ := ioutil.ReadFile(path.Join(ethereum.DataDir, "plugins.json"))
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json.Unmarshal(data, &gui.plugins)
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return gui
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}
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func (gui *Gui) Start(assetPath, libPath string) {
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defer gui.txDb.Close()
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guilogger.Infoln("Starting GUI")
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go gui.service()
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// Register ethereum functions
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qml.RegisterTypes("Ethereum", 1, 0, []qml.TypeSpec{{
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Init: func(p *xeth.Block, obj qml.Object) { p.Number = 0; p.Hash = "" },
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}, {
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Init: func(p *xeth.Transaction, obj qml.Object) { p.Value = ""; p.Hash = ""; p.Address = "" },
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}, {
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Init: func(p *xeth.KeyVal, obj qml.Object) { p.Key = ""; p.Value = "" },
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}})
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// Create a new QML engine
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gui.engine = qml.NewEngine()
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context := gui.engine.Context()
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gui.uiLib = NewUiLib(gui.engine, gui.eth, assetPath, libPath)
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gui.whisper = qwhisper.New(gui.eth.Whisper())
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// Expose the eth library and the ui library to QML
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context.SetVar("gui", gui)
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context.SetVar("eth", gui.uiLib)
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context.SetVar("shh", gui.whisper)
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//clipboard.SetQMLClipboard(context)
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win, err := gui.showWallet(context)
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if err != nil {
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guilogger.Errorln("asset not found: you can set an alternative asset path on the command line using option 'asset_path'", err)
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panic(err)
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}
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gui.open = true
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win.Show()
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win.Wait()
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gui.open = false
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}
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func (gui *Gui) Stop() {
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if gui.open {
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gui.open = false
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gui.win.Hide()
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}
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guilogger.Infoln("Stopped")
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}
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func (gui *Gui) showWallet(context *qml.Context) (*qml.Window, error) {
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component, err := gui.engine.LoadFile(gui.uiLib.AssetPath("qml/main.qml"))
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if err != nil {
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return nil, err
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}
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gui.createWindow(component)
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return gui.win, nil
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}
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func (gui *Gui) GenerateKey() {
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_, err := gui.eth.AccountManager().NewAccount("hurr")
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if err != nil {
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// TODO: UI feedback?
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}
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}
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func (gui *Gui) showKeyImport(context *qml.Context) (*qml.Window, error) {
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context.SetVar("lib", gui)
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component, err := gui.engine.LoadFile(gui.uiLib.AssetPath("qml/first_run.qml"))
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if err != nil {
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return nil, err
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}
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return gui.createWindow(component), nil
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}
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func (gui *Gui) createWindow(comp qml.Object) *qml.Window {
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gui.win = comp.CreateWindow(nil)
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gui.uiLib.win = gui.win
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return gui.win
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}
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func (gui *Gui) setInitialChain(ancientBlocks bool) {
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sBlk := gui.eth.ChainManager().LastBlockHash()
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blk := gui.eth.ChainManager().GetBlock(sBlk)
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for ; blk != nil; blk = gui.eth.ChainManager().GetBlock(sBlk) {
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sBlk = blk.ParentHash()
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gui.processBlock(blk, true)
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}
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}
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func (gui *Gui) loadAddressBook() {
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/*
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view := gui.getObjectByName("infoView")
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nameReg := gui.xeth.World().Config().Get("NameReg")
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if nameReg != nil {
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it := nameReg.Trie().Iterator()
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for it.Next() {
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if it.Key[0] != 0 {
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view.Call("addAddress", struct{ Name, Address string }{string(it.Key), common.Bytes2Hex(it.Value)})
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}
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}
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}
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*/
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}
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func (self *Gui) loadMergedMiningOptions() {
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/*
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view := self.getObjectByName("mergedMiningModel")
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mergeMining := self.xeth.World().Config().Get("MergeMining")
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if mergeMining != nil {
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i := 0
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it := mergeMining.Trie().Iterator()
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for it.Next() {
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view.Call("addMergedMiningOption", struct {
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Checked bool
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Name, Address string
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Id, ItemId int
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}{false, string(it.Key), common.Bytes2Hex(it.Value), 0, i})
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i++
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}
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}
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*/
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}
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func (gui *Gui) insertTransaction(window string, tx *types.Transaction) {
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var inout string
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from, _ := tx.From()
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if gui.eth.AccountManager().HasAccount(common.Hex2Bytes(from.Hex())) {
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inout = "send"
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} else {
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inout = "recv"
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}
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ptx := xeth.NewTx(tx)
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ptx.Sender = from.Hex()
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if to := tx.To(); to != nil {
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ptx.Address = to.Hex()
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}
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if window == "post" {
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//gui.getObjectByName("transactionView").Call("addTx", ptx, inout)
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} else {
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gui.getObjectByName("pendingTxView").Call("addTx", ptx, inout)
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}
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}
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func (gui *Gui) readPreviousTransactions() {
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it := gui.txDb.NewIterator()
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for it.Next() {
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tx := types.NewTransactionFromBytes(it.Value())
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gui.insertTransaction("post", tx)
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}
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it.Release()
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}
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func (gui *Gui) processBlock(block *types.Block, initial bool) {
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name := block.Coinbase().Hex()
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b := xeth.NewBlock(block)
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b.Name = name
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gui.getObjectByName("chainView").Call("addBlock", b, initial)
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}
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func (gui *Gui) setWalletValue(amount, unconfirmedFunds *big.Int) {
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var str string
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if unconfirmedFunds != nil {
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pos := "+"
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if unconfirmedFunds.Cmp(big.NewInt(0)) < 0 {
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pos = "-"
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}
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val := common.CurrencyToString(new(big.Int).Abs(common.BigCopy(unconfirmedFunds)))
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str = fmt.Sprintf("%v (%s %v)", common.CurrencyToString(amount), pos, val)
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} else {
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str = fmt.Sprintf("%v", common.CurrencyToString(amount))
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}
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gui.win.Root().Call("setWalletValue", str)
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}
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func (self *Gui) getObjectByName(objectName string) qml.Object {
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return self.win.Root().ObjectByName(objectName)
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}
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func (gui *Gui) SendCommand(cmd ServEv) {
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gui.serviceEvents <- cmd
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}
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func (gui *Gui) service() {
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for ev := range gui.serviceEvents {
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switch ev {
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case setup:
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go gui.setup()
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case update:
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go gui.update()
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}
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}
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}
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func (gui *Gui) setup() {
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for gui.win == nil {
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time.Sleep(time.Millisecond * 200)
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}
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for _, plugin := range gui.plugins {
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guilogger.Infoln("Loading plugin ", plugin.Name)
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gui.win.Root().Call("addPlugin", plugin.Path, "")
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}
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go func() {
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go gui.setInitialChain(false)
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gui.loadAddressBook()
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gui.loadMergedMiningOptions()
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gui.setPeerInfo()
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}()
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gui.whisper.SetView(gui.getObjectByName("whisperView"))
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gui.SendCommand(update)
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}
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// Simple go routine function that updates the list of peers in the GUI
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func (gui *Gui) update() {
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peerUpdateTicker := time.NewTicker(5 * time.Second)
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generalUpdateTicker := time.NewTicker(500 * time.Millisecond)
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statsUpdateTicker := time.NewTicker(5 * time.Second)
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lastBlockLabel := gui.getObjectByName("lastBlockLabel")
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//miningLabel := gui.getObjectByName("miningLabel")
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events := gui.eth.EventMux().Subscribe(
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core.ChainEvent{},
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core.TxPreEvent{},
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core.TxPostEvent{},
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)
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defer events.Unsubscribe()
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for {
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select {
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case ev, isopen := <-events.Chan():
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if !isopen {
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return
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}
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switch ev := ev.(type) {
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case core.ChainEvent:
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gui.processBlock(ev.Block, false)
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case core.TxPreEvent:
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gui.insertTransaction("pre", ev.Tx)
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case core.TxPostEvent:
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gui.getObjectByName("pendingTxView").Call("removeTx", xeth.NewTx(ev.Tx))
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}
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case <-peerUpdateTicker.C:
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gui.setPeerInfo()
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case <-generalUpdateTicker.C:
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statusText := "#" + gui.eth.ChainManager().CurrentBlock().Number().String()
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lastBlockLabel.Set("text", statusText)
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//miningLabel.Set("text", strconv.FormatInt(gui.uiLib.Miner().HashRate(), 10))
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case <-statsUpdateTicker.C:
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gui.setStatsPane()
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}
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}
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}
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func (gui *Gui) setStatsPane() {
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var memStats runtime.MemStats
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runtime.ReadMemStats(&memStats)
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statsPane := gui.getObjectByName("statsPane")
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statsPane.Set("text", fmt.Sprintf(`###### Mist %s (%s) #######
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eth %d (p2p = %d)
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CPU: # %d
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Goroutines: # %d
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CGoCalls: # %d
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Alloc: %d
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Heap Alloc: %d
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CGNext: %x
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NumGC: %d
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`, Version, runtime.Version(),
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eth.ProtocolVersion, 2,
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runtime.NumCPU, runtime.NumGoroutine(), runtime.NumCgoCall(),
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memStats.Alloc, memStats.HeapAlloc,
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memStats.NextGC, memStats.NumGC,
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))
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}
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type qmlpeer struct{ Addr, NodeID, Name, Caps string }
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type peersByID []*qmlpeer
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func (s peersByID) Len() int { return len(s) }
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func (s peersByID) Less(i, j int) bool { return s[i].NodeID < s[j].NodeID }
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func (s peersByID) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
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func (gui *Gui) setPeerInfo() {
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peers := gui.eth.Peers()
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qpeers := make(peersByID, len(peers))
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for i, p := range peers {
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qpeers[i] = &qmlpeer{
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NodeID: p.ID().String(),
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Addr: p.RemoteAddr().String(),
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Name: p.Name(),
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Caps: fmt.Sprint(p.Caps()),
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}
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}
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// we need to sort the peers because they jump around randomly
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// otherwise. order returned by eth.Peers is random because they
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// are taken from a map.
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sort.Sort(qpeers)
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gui.win.Root().Call("setPeerCounters", fmt.Sprintf("%d / %d", len(peers), gui.eth.MaxPeers()))
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gui.win.Root().Call("clearPeers")
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for _, p := range qpeers {
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gui.win.Root().Call("addPeer", p)
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}
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}
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/*
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func LoadExtension(path string) (uintptr, error) {
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lib, err := ffi.NewLibrary(path)
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if err != nil {
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return 0, err
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}
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so, err := lib.Fct("sharedObject", ffi.Pointer, nil)
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if err != nil {
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return 0, err
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}
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ptr := so()
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err = lib.Close()
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if err != nil {
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return 0, err
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}
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return ptr.Interface().(uintptr), nil
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}
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*/
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/*
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vec, errr := LoadExtension("/Users/jeffrey/Desktop/build-libqmltest-Desktop_Qt_5_2_1_clang_64bit-Debug/liblibqmltest_debug.dylib")
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fmt.Printf("Fetched vec with addr: %#x\n", vec)
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if errr != nil {
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fmt.Println(errr)
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} else {
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context.SetVar("vec", (unsafe.Pointer)(vec))
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}
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*/
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