bsc/cmd/mist/gui.go
2015-02-14 00:12:37 +01:00

573 lines
14 KiB
Go

/*
This file is part of go-ethereum
go-ethereum is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
go-ethereum is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @authors
* Jeffrey Wilcke <i@jev.io>
*/
package main
import "C"
import (
"bytes"
"encoding/json"
"fmt"
"io/ioutil"
"math/big"
"os"
"path"
"runtime"
"sort"
"strconv"
"time"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/ethutil"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/miner"
"github.com/ethereum/go-ethereum/ui/qt/qwhisper"
"github.com/ethereum/go-ethereum/xeth"
"github.com/obscuren/qml"
)
var guilogger = logger.NewLogger("GUI")
type ServEv byte
const (
setup ServEv = iota
update
)
type Gui struct {
// The main application window
win *qml.Window
// QML Engine
engine *qml.Engine
component *qml.Common
// The ethereum interface
eth *eth.Ethereum
serviceEvents chan ServEv
// The public Ethereum library
uiLib *UiLib
whisper *qwhisper.Whisper
txDb *ethdb.LDBDatabase
logLevel logger.LogLevel
open bool
xeth *xeth.XEth
Session string
config *ethutil.ConfigManager
plugins map[string]plugin
miner *miner.Miner
}
// Create GUI, but doesn't start it
func NewWindow(ethereum *eth.Ethereum, config *ethutil.ConfigManager, session string, logLevel int) *Gui {
db, err := ethdb.NewLDBDatabase("tx_database")
if err != nil {
panic(err)
}
xeth := xeth.New(ethereum)
gui := &Gui{eth: ethereum,
txDb: db,
xeth: xeth,
logLevel: logger.LogLevel(logLevel),
Session: session,
open: false,
config: config,
plugins: make(map[string]plugin),
serviceEvents: make(chan ServEv, 1),
}
data, _ := ethutil.ReadAllFile(path.Join(ethutil.Config.ExecPath, "plugins.json"))
json.Unmarshal([]byte(data), &gui.plugins)
return gui
}
func (gui *Gui) Start(assetPath string) {
defer gui.txDb.Close()
guilogger.Infoln("Starting GUI")
go gui.service()
// Register ethereum functions
qml.RegisterTypes("Ethereum", 1, 0, []qml.TypeSpec{{
Init: func(p *xeth.Block, obj qml.Object) { p.Number = 0; p.Hash = "" },
}, {
Init: func(p *xeth.Transaction, obj qml.Object) { p.Value = ""; p.Hash = ""; p.Address = "" },
}, {
Init: func(p *xeth.KeyVal, obj qml.Object) { p.Key = ""; p.Value = "" },
}})
// Create a new QML engine
gui.engine = qml.NewEngine()
context := gui.engine.Context()
gui.uiLib = NewUiLib(gui.engine, gui.eth, assetPath)
gui.whisper = qwhisper.New(gui.eth.Whisper())
// Expose the eth library and the ui library to QML
context.SetVar("gui", gui)
context.SetVar("eth", gui.uiLib)
context.SetVar("shh", gui.whisper)
win, err := gui.showWallet(context)
if err != nil {
guilogger.Errorln("asset not found: you can set an alternative asset path on the command line using option 'asset_path'", err)
panic(err)
}
gui.open = true
win.Show()
// only add the gui guilogger after window is shown otherwise slider wont be shown
logger.AddLogSystem(gui)
win.Wait()
// need to silence gui guilogger after window closed otherwise logsystem hangs (but do not save loglevel)
gui.logLevel = logger.Silence
gui.open = false
}
func (gui *Gui) Stop() {
if gui.open {
gui.logLevel = logger.Silence
gui.open = false
gui.win.Hide()
}
gui.uiLib.jsEngine.Stop()
guilogger.Infoln("Stopped")
}
func (gui *Gui) showWallet(context *qml.Context) (*qml.Window, error) {
component, err := gui.engine.LoadFile(gui.uiLib.AssetPath("qml/main.qml"))
if err != nil {
return nil, err
}
gui.createWindow(component)
return gui.win, nil
}
func (gui *Gui) ImportKey(filePath string) {
}
func (gui *Gui) showKeyImport(context *qml.Context) (*qml.Window, error) {
context.SetVar("lib", gui)
component, err := gui.engine.LoadFile(gui.uiLib.AssetPath("qml/first_run.qml"))
if err != nil {
return nil, err
}
return gui.createWindow(component), nil
}
func (gui *Gui) createWindow(comp qml.Object) *qml.Window {
gui.win = comp.CreateWindow(nil)
gui.uiLib.win = gui.win
return gui.win
}
func (gui *Gui) ImportAndSetPrivKey(secret string) bool {
err := gui.eth.KeyManager().InitFromString(gui.Session, 0, secret)
if err != nil {
guilogger.Errorln("unable to import: ", err)
return false
}
guilogger.Errorln("successfully imported: ", err)
return true
}
func (gui *Gui) CreateAndSetPrivKey() (string, string, string, string) {
err := gui.eth.KeyManager().Init(gui.Session, 0, true)
if err != nil {
guilogger.Errorln("unable to create key: ", err)
return "", "", "", ""
}
return gui.eth.KeyManager().KeyPair().AsStrings()
}
func (gui *Gui) setInitialChain(ancientBlocks bool) {
sBlk := gui.eth.ChainManager().LastBlockHash()
blk := gui.eth.ChainManager().GetBlock(sBlk)
for ; blk != nil; blk = gui.eth.ChainManager().GetBlock(sBlk) {
sBlk = blk.ParentHash()
gui.processBlock(blk, true)
}
}
func (gui *Gui) loadAddressBook() {
/*
view := gui.getObjectByName("infoView")
nameReg := gui.xeth.World().Config().Get("NameReg")
if nameReg != nil {
it := nameReg.Trie().Iterator()
for it.Next() {
if it.Key[0] != 0 {
view.Call("addAddress", struct{ Name, Address string }{string(it.Key), ethutil.Bytes2Hex(it.Value)})
}
}
}
*/
}
func (self *Gui) loadMergedMiningOptions() {
/*
view := self.getObjectByName("mergedMiningModel")
mergeMining := self.xeth.World().Config().Get("MergeMining")
if mergeMining != nil {
i := 0
it := mergeMining.Trie().Iterator()
for it.Next() {
view.Call("addMergedMiningOption", struct {
Checked bool
Name, Address string
Id, ItemId int
}{false, string(it.Key), ethutil.Bytes2Hex(it.Value), 0, i})
i++
}
}
*/
}
func (gui *Gui) insertTransaction(window string, tx *types.Transaction) {
addr := gui.address()
var inout string
if bytes.Compare(tx.From(), addr) == 0 {
inout = "send"
} else {
inout = "recv"
}
var (
ptx = xeth.NewTx(tx)
send = ethutil.Bytes2Hex(tx.From())
rec = ethutil.Bytes2Hex(tx.To())
)
ptx.Sender = send
ptx.Address = rec
if window == "post" {
//gui.getObjectByName("transactionView").Call("addTx", ptx, inout)
} else {
gui.getObjectByName("pendingTxView").Call("addTx", ptx, inout)
}
}
func (gui *Gui) readPreviousTransactions() {
it := gui.txDb.NewIterator()
for it.Next() {
tx := types.NewTransactionFromBytes(it.Value())
gui.insertTransaction("post", tx)
}
it.Release()
}
func (gui *Gui) processBlock(block *types.Block, initial bool) {
name := ethutil.Bytes2Hex(block.Coinbase())
b := xeth.NewBlock(block)
b.Name = name
gui.getObjectByName("chainView").Call("addBlock", b, initial)
}
func (gui *Gui) setWalletValue(amount, unconfirmedFunds *big.Int) {
var str string
if unconfirmedFunds != nil {
pos := "+"
if unconfirmedFunds.Cmp(big.NewInt(0)) < 0 {
pos = "-"
}
val := ethutil.CurrencyToString(new(big.Int).Abs(ethutil.BigCopy(unconfirmedFunds)))
str = fmt.Sprintf("%v (%s %v)", ethutil.CurrencyToString(amount), pos, val)
} else {
str = fmt.Sprintf("%v", ethutil.CurrencyToString(amount))
}
gui.win.Root().Call("setWalletValue", str)
}
func (self *Gui) getObjectByName(objectName string) qml.Object {
return self.win.Root().ObjectByName(objectName)
}
func loadJavascriptAssets(gui *Gui) (jsfiles string) {
for _, fn := range []string{"ext/q.js", "ext/eth.js/main.js", "ext/eth.js/qt.js", "ext/setup.js"} {
f, err := os.Open(gui.uiLib.AssetPath(fn))
if err != nil {
fmt.Println(err)
continue
}
content, err := ioutil.ReadAll(f)
if err != nil {
fmt.Println(err)
continue
}
jsfiles += string(content)
}
return
}
func (gui *Gui) SendCommand(cmd ServEv) {
gui.serviceEvents <- cmd
}
func (gui *Gui) service() {
for ev := range gui.serviceEvents {
switch ev {
case setup:
go gui.setup()
case update:
go gui.update()
}
}
}
func (gui *Gui) setup() {
for gui.win == nil {
time.Sleep(time.Millisecond * 200)
}
for _, plugin := range gui.plugins {
guilogger.Infoln("Loading plugin ", plugin.Name)
gui.win.Root().Call("addPlugin", plugin.Path, "")
}
go func() {
go gui.setInitialChain(false)
gui.loadAddressBook()
gui.loadMergedMiningOptions()
gui.setPeerInfo()
}()
gui.whisper.SetView(gui.getObjectByName("whisperView"))
gui.SendCommand(update)
}
// Simple go routine function that updates the list of peers in the GUI
func (gui *Gui) update() {
peerUpdateTicker := time.NewTicker(5 * time.Second)
generalUpdateTicker := time.NewTicker(500 * time.Millisecond)
statsUpdateTicker := time.NewTicker(5 * time.Second)
state := gui.eth.ChainManager().TransState()
gui.win.Root().Call("setWalletValue", fmt.Sprintf("%v", ethutil.CurrencyToString(state.GetAccount(gui.address()).Balance())))
lastBlockLabel := gui.getObjectByName("lastBlockLabel")
miningLabel := gui.getObjectByName("miningLabel")
events := gui.eth.EventMux().Subscribe(
//eth.PeerListEvent{},
core.NewBlockEvent{},
core.TxPreEvent{},
core.TxPostEvent{},
)
defer events.Unsubscribe()
for {
select {
case ev, isopen := <-events.Chan():
if !isopen {
return
}
switch ev := ev.(type) {
case core.NewBlockEvent:
gui.processBlock(ev.Block, false)
//gui.setWalletValue(gui.eth.ChainManager().State().GetBalance(gui.address()), nil)
balance := ethutil.CurrencyToString(gui.eth.ChainManager().State().GetBalance(gui.address()))
gui.getObjectByName("balanceLabel").Set("text", fmt.Sprintf("%v", balance))
case core.TxPreEvent:
tx := ev.Tx
tstate := gui.eth.ChainManager().TransState()
cstate := gui.eth.ChainManager().State()
taccount := tstate.GetAccount(gui.address())
caccount := cstate.GetAccount(gui.address())
unconfirmedFunds := new(big.Int).Sub(taccount.Balance(), caccount.Balance())
gui.setWalletValue(taccount.Balance(), unconfirmedFunds)
gui.insertTransaction("pre", tx)
case core.TxPostEvent:
tx := ev.Tx
object := state.GetAccount(gui.address())
if bytes.Compare(tx.From(), gui.address()) == 0 {
object.SubAmount(tx.Value())
gui.txDb.Put(tx.Hash(), tx.RlpEncode())
} else if bytes.Compare(tx.To(), gui.address()) == 0 {
object.AddAmount(tx.Value())
gui.txDb.Put(tx.Hash(), tx.RlpEncode())
}
gui.setWalletValue(object.Balance(), nil)
state.UpdateStateObject(object)
}
case <-peerUpdateTicker.C:
gui.setPeerInfo()
case <-generalUpdateTicker.C:
statusText := "#" + gui.eth.ChainManager().CurrentBlock().Number().String()
lastBlockLabel.Set("text", statusText)
miningLabel.Set("text", "Mining @ "+strconv.FormatInt(gui.uiLib.miner.HashRate(), 10)+"/Khash")
/*
blockLength := gui.eth.BlockPool().BlocksProcessed
chainLength := gui.eth.BlockPool().ChainLength
var (
pct float64 = 1.0 / float64(chainLength) * float64(blockLength)
dlWidget = gui.win.Root().ObjectByName("downloadIndicator")
dlLabel = gui.win.Root().ObjectByName("downloadLabel")
)
dlWidget.Set("value", pct)
dlLabel.Set("text", fmt.Sprintf("%d / %d", blockLength, chainLength))
*/
case <-statsUpdateTicker.C:
gui.setStatsPane()
}
}
}
func (gui *Gui) setStatsPane() {
var memStats runtime.MemStats
runtime.ReadMemStats(&memStats)
statsPane := gui.getObjectByName("statsPane")
statsPane.Set("text", fmt.Sprintf(`###### Mist %s (%s) #######
eth %d (p2p = %d)
CPU: # %d
Goroutines: # %d
CGoCalls: # %d
Alloc: %d
Heap Alloc: %d
CGNext: %x
NumGC: %d
`, Version, runtime.Version(),
eth.ProtocolVersion, 2,
runtime.NumCPU, runtime.NumGoroutine(), runtime.NumCgoCall(),
memStats.Alloc, memStats.HeapAlloc,
memStats.NextGC, memStats.NumGC,
))
}
type qmlpeer struct{ Addr, NodeID, Caps string }
type peersByID []*qmlpeer
func (s peersByID) Len() int { return len(s) }
func (s peersByID) Less(i, j int) bool { return s[i].NodeID < s[j].NodeID }
func (s peersByID) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
func (gui *Gui) setPeerInfo() {
peers := gui.eth.Peers()
qpeers := make(peersByID, len(peers))
for i, p := range peers {
qpeers[i] = &qmlpeer{
NodeID: p.ID().String(),
Addr: p.RemoteAddr().String(),
Caps: fmt.Sprint(p.Caps()),
}
}
// we need to sort the peers because they jump around randomly
// otherwise. order returned by eth.Peers is random because they
// are taken from a map.
sort.Sort(qpeers)
gui.win.Root().Call("setPeerCounters", fmt.Sprintf("%d / %d", len(peers), gui.eth.MaxPeers()))
gui.win.Root().Call("clearPeers")
for _, p := range qpeers {
gui.win.Root().Call("addPeer", p)
}
}
func (gui *Gui) privateKey() string {
return ethutil.Bytes2Hex(gui.eth.KeyManager().PrivateKey())
}
func (gui *Gui) address() []byte {
return gui.eth.KeyManager().Address()
}
/*
func LoadExtension(path string) (uintptr, error) {
lib, err := ffi.NewLibrary(path)
if err != nil {
return 0, err
}
so, err := lib.Fct("sharedObject", ffi.Pointer, nil)
if err != nil {
return 0, err
}
ptr := so()
err = lib.Close()
if err != nil {
return 0, err
}
return ptr.Interface().(uintptr), nil
}
*/
/*
vec, errr := LoadExtension("/Users/jeffrey/Desktop/build-libqmltest-Desktop_Qt_5_2_1_clang_64bit-Debug/liblibqmltest_debug.dylib")
fmt.Printf("Fetched vec with addr: %#x\n", vec)
if errr != nil {
fmt.Println(errr)
} else {
context.SetVar("vec", (unsafe.Pointer)(vec))
}
*/