package main // #include "/Users/jeffrey/go/src/github.com/go-qml/qml/cpp/capi.h" import "C" import ( "bytes" "encoding/json" "fmt" "math/big" "path" "runtime" "strconv" "strings" "time" "bitbucket.org/binet/go-ffi/pkg/ffi" "github.com/ethereum/eth-go" "github.com/ethereum/eth-go/ethchain" "github.com/ethereum/eth-go/ethdb" "github.com/ethereum/eth-go/ethlog" "github.com/ethereum/eth-go/ethminer" "github.com/ethereum/eth-go/ethpipe" "github.com/ethereum/eth-go/ethreact" "github.com/ethereum/eth-go/ethutil" "github.com/ethereum/eth-go/ethwire" "gopkg.in/qml.v1" ) 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 } var logger = ethlog.NewLogger("GUI") type Gui struct { // The main application window win *qml.Window // QML Engine engine *qml.Engine component *qml.Common qmlDone bool // The ethereum interface eth *eth.Ethereum // The public Ethereum library uiLib *UiLib txDb *ethdb.LDBDatabase logLevel ethlog.LogLevel open bool pipe *ethpipe.JSPipe Session string clientIdentity *ethwire.SimpleClientIdentity config *ethutil.ConfigManager plugins map[string]plugin miner *ethminer.Miner stdLog ethlog.LogSystem } // Create GUI, but doesn't start it func NewWindow(ethereum *eth.Ethereum, config *ethutil.ConfigManager, clientIdentity *ethwire.SimpleClientIdentity, session string, logLevel int) *Gui { db, err := ethdb.NewLDBDatabase("tx_database") if err != nil { panic(err) } pipe := ethpipe.NewJSPipe(ethereum) gui := &Gui{eth: ethereum, txDb: db, pipe: pipe, logLevel: ethlog.LogLevel(logLevel), Session: session, open: false, clientIdentity: clientIdentity, config: config, plugins: make(map[string]plugin)} 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() // Register ethereum functions qml.RegisterTypes("Ethereum", 1, 0, []qml.TypeSpec{{ Init: func(p *ethpipe.JSBlock, obj qml.Object) { p.Number = 0; p.Hash = "" }, }, { Init: func(p *ethpipe.JSTransaction, obj qml.Object) { p.Value = ""; p.Hash = ""; p.Address = "" }, }, { Init: func(p *ethpipe.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) // Expose the eth library and the ui library to QML context.SetVar("gui", gui) context.SetVar("eth", gui.uiLib) /* 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)) } */ // Load the main QML interface data, _ := ethutil.Config.Db.Get([]byte("KeyRing")) var win *qml.Window var err error var addlog = false if len(data) == 0 { win, err = gui.showKeyImport(context) } else { win, err = gui.showWallet(context) addlog = true } if err != nil { logger.Errorln("asset not found: you can set an alternative asset path on the command line using option 'asset_path'", err) panic(err) } logger.Infoln("Starting GUI") gui.open = true win.Show() // only add the gui logger after window is shown otherwise slider wont be shown if addlog { ethlog.AddLogSystem(gui) } win.Wait() // need to silence gui logger after window closed otherwise logsystem hangs (but do not save loglevel) gui.logLevel = ethlog.Silence gui.open = false } func (gui *Gui) Stop() { if gui.open { gui.logLevel = ethlog.Silence gui.open = false gui.win.Hide() } gui.uiLib.jsEngine.Stop() logger.Infoln("Stopped") } func (gui *Gui) showWallet(context *qml.Context) (*qml.Window, error) { component, err := gui.engine.LoadFile(gui.uiLib.AssetPath("qml/wallet.qml")) if err != nil { return nil, err } gui.win = gui.createWindow(component) gui.update() return gui.win, nil } // The done handler will be called by QML when all views have been loaded func (gui *Gui) Done() { gui.qmlDone = true } 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 { win := comp.CreateWindow(nil) gui.win = win gui.uiLib.win = win return gui.win } func (gui *Gui) ImportAndSetPrivKey(secret string) bool { err := gui.eth.KeyManager().InitFromString(gui.Session, 0, secret) if err != nil { logger.Errorln("unable to import: ", err) return false } logger.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 { logger.Errorln("unable to create key: ", err) return "", "", "", "" } return gui.eth.KeyManager().KeyPair().AsStrings() } func (gui *Gui) setInitialBlockChain() { sBlk := gui.eth.BlockChain().LastBlockHash blk := gui.eth.BlockChain().GetBlock(sBlk) for ; blk != nil; blk = gui.eth.BlockChain().GetBlock(sBlk) { sBlk = blk.PrevHash addr := gui.address() // Loop through all transactions to see if we missed any while being offline for _, tx := range blk.Transactions() { if bytes.Compare(tx.Sender(), addr) == 0 || bytes.Compare(tx.Recipient, addr) == 0 { if ok, _ := gui.txDb.Get(tx.Hash()); ok == nil { gui.txDb.Put(tx.Hash(), tx.RlpEncode()) } } } gui.processBlock(blk, true) } } type address struct { Name, Address string } func (gui *Gui) loadAddressBook() { view := gui.getObjectByName("infoView") view.Call("clearAddress") nameReg := gui.pipe.World().Config().Get("NameReg") if nameReg != nil { nameReg.EachStorage(func(name string, value *ethutil.Value) { if name[0] != 0 { value.Decode() view.Call("addAddress", struct{ Name, Address string }{name, ethutil.Bytes2Hex(value.Bytes())}) } }) } } func (gui *Gui) insertTransaction(window string, tx *ethchain.Transaction) { nameReg := ethpipe.New(gui.eth).World().Config().Get("NameReg") addr := gui.address() var inout string if bytes.Compare(tx.Sender(), addr) == 0 { inout = "send" } else { inout = "recv" } var ( ptx = ethpipe.NewJSTx(tx) send = nameReg.Storage(tx.Sender()) rec = nameReg.Storage(tx.Recipient) s, r string ) if tx.CreatesContract() { rec = nameReg.Storage(tx.CreationAddress()) } if send.Len() != 0 { s = strings.Trim(send.Str(), "\x00") } else { s = ethutil.Bytes2Hex(tx.Sender()) } if rec.Len() != 0 { r = strings.Trim(rec.Str(), "\x00") } else { if tx.CreatesContract() { r = ethutil.Bytes2Hex(tx.CreationAddress()) } else { r = ethutil.Bytes2Hex(tx.Recipient) } } ptx.Sender = s ptx.Address = r 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.Db().NewIterator(nil, nil) for it.Next() { tx := ethchain.NewTransactionFromBytes(it.Value()) gui.insertTransaction("post", tx) } it.Release() } func (gui *Gui) processBlock(block *ethchain.Block, initial bool) { name := strings.Trim(gui.pipe.World().Config().Get("NameReg").Storage(block.Coinbase).Str(), "\x00") b := ethpipe.NewJSBlock(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) } // Simple go routine function that updates the list of peers in the GUI func (gui *Gui) update() { // We have to wait for qml to be done loading all the windows. for !gui.qmlDone { time.Sleep(500 * time.Millisecond) } go func() { go gui.setInitialBlockChain() gui.loadAddressBook() gui.setPeerInfo() gui.readPreviousTransactions() }() for _, plugin := range gui.plugins { logger.Infoln("Loading plugin ", plugin.Name) gui.win.Root().Call("addPlugin", plugin.Path, "") } var ( blockChan = make(chan ethreact.Event, 100) txChan = make(chan ethreact.Event, 100) objectChan = make(chan ethreact.Event, 100) peerChan = make(chan ethreact.Event, 100) chainSyncChan = make(chan ethreact.Event, 100) miningChan = make(chan ethreact.Event, 100) ) peerUpdateTicker := time.NewTicker(5 * time.Second) generalUpdateTicker := time.NewTicker(1 * time.Second) statsUpdateTicker := time.NewTicker(5 * time.Second) state := gui.eth.StateManager().TransState() unconfirmedFunds := new(big.Int) gui.win.Root().Call("setWalletValue", fmt.Sprintf("%v", ethutil.CurrencyToString(state.GetAccount(gui.address()).Balance))) gui.getObjectByName("syncProgressIndicator").Set("visible", !gui.eth.IsUpToDate()) lastBlockLabel := gui.getObjectByName("lastBlockLabel") miningLabel := gui.getObjectByName("miningLabel") go func() { for { select { case b := <-blockChan: block := b.Resource.(*ethchain.Block) gui.processBlock(block, false) if bytes.Compare(block.Coinbase, gui.address()) == 0 { gui.setWalletValue(gui.eth.StateManager().CurrentState().GetAccount(gui.address()).Balance, nil) } case txMsg := <-txChan: tx := txMsg.Resource.(*ethchain.Transaction) if txMsg.Name == "newTx:pre" { object := state.GetAccount(gui.address()) if bytes.Compare(tx.Sender(), gui.address()) == 0 { unconfirmedFunds.Sub(unconfirmedFunds, tx.Value) } else if bytes.Compare(tx.Recipient, gui.address()) == 0 { unconfirmedFunds.Add(unconfirmedFunds, tx.Value) } gui.setWalletValue(object.Balance, unconfirmedFunds) gui.insertTransaction("pre", tx) } else { object := state.GetAccount(gui.address()) if bytes.Compare(tx.Sender(), gui.address()) == 0 { object.SubAmount(tx.Value) //gui.getObjectByName("transactionView").Call("addTx", ethpipe.NewJSTx(tx), "send") gui.txDb.Put(tx.Hash(), tx.RlpEncode()) } else if bytes.Compare(tx.Recipient, gui.address()) == 0 { object.AddAmount(tx.Value) //gui.getObjectByName("transactionView").Call("addTx", ethpipe.NewJSTx(tx), "recv") gui.txDb.Put(tx.Hash(), tx.RlpEncode()) } gui.setWalletValue(object.Balance, nil) state.UpdateStateObject(object) } case msg := <-chainSyncChan: sync := msg.Resource.(bool) gui.win.Root().ObjectByName("syncProgressIndicator").Set("visible", sync) case <-objectChan: gui.loadAddressBook() case <-peerChan: gui.setPeerInfo() case <-peerUpdateTicker.C: gui.setPeerInfo() case msg := <-miningChan: if msg.Name == "miner:start" { gui.miner = msg.Resource.(*ethminer.Miner) } else { gui.miner = nil } case <-generalUpdateTicker.C: statusText := "#" + gui.eth.BlockChain().CurrentBlock.Number.String() lastBlockLabel.Set("text", statusText) if gui.miner != nil { pow := gui.miner.GetPow() miningLabel.Set("text", "Mining @ "+strconv.FormatInt(pow.GetHashrate(), 10)+"Khash") } case <-statsUpdateTicker.C: gui.setStatsPane() } } }() reactor := gui.eth.Reactor() reactor.Subscribe("newBlock", blockChan) reactor.Subscribe("newTx:pre", txChan) reactor.Subscribe("newTx:post", txChan) reactor.Subscribe("chainSync", chainSyncChan) reactor.Subscribe("miner:start", miningChan) reactor.Subscribe("miner:stop", miningChan) nameReg := gui.pipe.World().Config().Get("NameReg") reactor.Subscribe("object:"+string(nameReg.Address()), objectChan) reactor.Subscribe("peerList", peerChan) } func (gui *Gui) setStatsPane() { var memStats runtime.MemStats runtime.ReadMemStats(&memStats) statsPane := gui.getObjectByName("statsPane") statsPane.Set("text", fmt.Sprintf(`###### Ethereal 0.6.4 (%s) ####### CPU: # %d Goroutines: # %d CGoCalls: # %d Alloc: %d Heap Alloc: %d CGNext: %x NumGC: %d `, runtime.Version(), runtime.NumCPU, runtime.NumGoroutine(), runtime.NumCgoCall(), memStats.Alloc, memStats.HeapAlloc, memStats.NextGC, memStats.NumGC, )) } func (gui *Gui) setPeerInfo() { gui.win.Root().Call("setPeers", fmt.Sprintf("%d / %d", gui.eth.PeerCount(), gui.eth.MaxPeers)) gui.win.Root().Call("resetPeers") for _, peer := range gui.pipe.Peers() { gui.win.Root().Call("addPeer", peer) } } func (gui *Gui) privateKey() string { return ethutil.Bytes2Hex(gui.eth.KeyManager().PrivateKey()) } func (gui *Gui) address() []byte { return gui.eth.KeyManager().Address() }