331 lines
		
	
	
		
			7.5 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			331 lines
		
	
	
		
			7.5 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// Copyright (c) 2013-2014, Jeffrey Wilcke. All rights reserved.
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library 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 GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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// MA 02110-1301  USA
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package main
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import (
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	"bytes"
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	"fmt"
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	"path"
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	"strconv"
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	"strings"
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	"github.com/ethereum/go-ethereum"
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	"github.com/ethereum/go-ethereum/ethchain"
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	"github.com/ethereum/go-ethereum/ethcrypto"
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	"github.com/ethereum/go-ethereum/ethpipe"
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	"github.com/ethereum/go-ethereum/ethstate"
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	"github.com/ethereum/go-ethereum/ethutil"
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	"github.com/ethereum/go-ethereum/javascript"
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	"github.com/ethereum/go-ethereum/ui/qt"
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	"gopkg.in/qml.v1"
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)
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type memAddr struct {
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	Num   string
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	Value string
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}
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// UI Library that has some basic functionality exposed
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type UiLib struct {
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	*ethpipe.JSPipe
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	engine    *qml.Engine
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	eth       *eth.Ethereum
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	connected bool
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	assetPath string
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	// The main application window
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	win      *qml.Window
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	Db       *Debugger
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	DbWindow *DebuggerWindow
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	jsEngine *javascript.JSRE
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	filterCallbacks map[int][]int
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}
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func NewUiLib(engine *qml.Engine, eth *eth.Ethereum, assetPath string) *UiLib {
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	return &UiLib{JSPipe: ethpipe.NewJSPipe(eth), engine: engine, eth: eth, assetPath: assetPath, jsEngine: javascript.NewJSRE(eth), filterCallbacks: make(map[int][]int)} //, filters: make(map[int]*ethpipe.JSFilter)}
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}
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func (self *UiLib) Notef(args []interface{}) {
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	logger.Infoln(args...)
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}
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func (self *UiLib) LookupDomain(domain string) string {
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	world := self.World()
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	if len(domain) > 32 {
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		domain = string(ethcrypto.Sha3([]byte(domain)))
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	}
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	data := world.Config().Get("DnsReg").StorageString(domain).Bytes()
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	// Left padded = A record, Right padded = CNAME
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	if len(data) > 0 && data[0] == 0 {
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		data = bytes.TrimLeft(data, "\x00")
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		var ipSlice []string
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		for _, d := range data {
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			ipSlice = append(ipSlice, strconv.Itoa(int(d)))
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		}
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		return strings.Join(ipSlice, ".")
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	} else {
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		data = bytes.TrimRight(data, "\x00")
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		return string(data)
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	}
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}
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func (self *UiLib) LookupName(addr string) string {
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	var (
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		nameReg = self.World().Config().Get("NameReg")
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		lookup  = nameReg.Storage(ethutil.Hex2Bytes(addr))
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	)
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	if lookup.Len() != 0 {
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		return strings.Trim(lookup.Str(), "\x00")
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	}
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	return addr
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}
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func (self *UiLib) LookupAddress(name string) string {
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	var (
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		nameReg = self.World().Config().Get("NameReg")
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		lookup  = nameReg.Storage(ethutil.RightPadBytes([]byte(name), 32))
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	)
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	if lookup.Len() != 0 {
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		return ethutil.Bytes2Hex(lookup.Bytes())
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	}
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	return ""
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}
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func (self *UiLib) PastPeers() *ethutil.List {
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	return ethutil.NewList(eth.PastPeers())
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}
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func (self *UiLib) ImportTx(rlpTx string) {
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	tx := ethchain.NewTransactionFromBytes(ethutil.Hex2Bytes(rlpTx))
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	self.eth.TxPool().QueueTransaction(tx)
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}
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func (self *UiLib) EvalJavascriptFile(path string) {
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	self.jsEngine.LoadExtFile(path[7:])
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}
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func (self *UiLib) EvalJavascriptString(str string) string {
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	value, err := self.jsEngine.Run(str)
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	if err != nil {
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		return err.Error()
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	}
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	return fmt.Sprintf("%v", value)
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}
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func (ui *UiLib) OpenQml(path string) {
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	container := NewQmlApplication(path[7:], ui)
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	app := NewExtApplication(container, ui)
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	go app.run()
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}
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func (ui *UiLib) OpenHtml(path string) {
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	container := NewHtmlApplication(path, ui)
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	app := NewExtApplication(container, ui)
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	go app.run()
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}
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func (ui *UiLib) OpenBrowser() {
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	ui.OpenHtml("file://" + ui.AssetPath("ext/home.html"))
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}
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func (ui *UiLib) Muted(content string) {
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	component, err := ui.engine.LoadFile(ui.AssetPath("qml/muted.qml"))
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	if err != nil {
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		logger.Debugln(err)
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		return
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	}
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	win := component.CreateWindow(nil)
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	go func() {
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		path := "file://" + ui.AssetPath("muted/index.html")
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		win.Set("url", path)
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		win.Show()
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		win.Wait()
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	}()
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}
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func (ui *UiLib) Connect(button qml.Object) {
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	if !ui.connected {
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		ui.eth.Start(true)
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		ui.connected = true
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		button.Set("enabled", false)
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	}
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}
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func (ui *UiLib) ConnectToPeer(addr string) {
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	ui.eth.ConnectToPeer(addr)
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}
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func (ui *UiLib) AssetPath(p string) string {
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	return path.Join(ui.assetPath, p)
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}
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func (self *UiLib) StartDbWithContractAndData(contractHash, data string) {
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	dbWindow := NewDebuggerWindow(self)
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	object := self.eth.StateManager().CurrentState().GetStateObject(ethutil.Hex2Bytes(contractHash))
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	if len(object.Code) > 0 {
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		dbWindow.SetCode("0x" + ethutil.Bytes2Hex(object.Code))
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	}
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	dbWindow.SetData("0x" + data)
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	dbWindow.Show()
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}
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func (self *UiLib) StartDbWithCode(code string) {
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	dbWindow := NewDebuggerWindow(self)
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	dbWindow.SetCode("0x" + code)
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	dbWindow.Show()
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}
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func (self *UiLib) StartDebugger() {
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	dbWindow := NewDebuggerWindow(self)
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	dbWindow.Show()
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}
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func (self *UiLib) NewFilter(object map[string]interface{}) (id int) {
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	filter := qt.NewFilterFromMap(object, self.eth)
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	filter.MessageCallback = func(messages ethstate.Messages) {
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		self.win.Root().Call("invokeFilterCallback", ethpipe.ToJSMessages(messages), id)
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	}
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	id = self.eth.InstallFilter(filter)
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	return id
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}
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func (self *UiLib) NewFilterString(typ string) (id int) {
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	filter := ethchain.NewFilter(self.eth)
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	filter.BlockCallback = func(block *ethchain.Block) {
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		self.win.Root().Call("invokeFilterCallback", "{}", id)
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	}
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	id = self.eth.InstallFilter(filter)
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	return id
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}
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func (self *UiLib) Messages(id int) *ethutil.List {
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	filter := self.eth.GetFilter(id)
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	if filter != nil {
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		messages := ethpipe.ToJSMessages(filter.Find())
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		return messages
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	}
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	return ethutil.EmptyList()
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}
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func (self *UiLib) UninstallFilter(id int) {
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	self.eth.UninstallFilter(id)
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}
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func mapToTxParams(object map[string]interface{}) map[string]string {
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	// Default values
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	if object["from"] == nil {
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		object["from"] = ""
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	}
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	if object["to"] == nil {
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		object["to"] = ""
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	}
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	if object["value"] == nil {
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		object["value"] = ""
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	}
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	if object["gas"] == nil {
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		object["gas"] = ""
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	}
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	if object["gasPrice"] == nil {
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		object["gasPrice"] = ""
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	}
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	var dataStr string
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	var data []string
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	if list, ok := object["data"].(*qml.List); ok {
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		list.Convert(&data)
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	} else if str, ok := object["data"].(string); ok {
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		data = []string{str}
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	}
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	for _, str := range data {
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		if ethutil.IsHex(str) {
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			str = str[2:]
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			if len(str) != 64 {
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				str = ethutil.LeftPadString(str, 64)
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			}
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		} else {
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			str = ethutil.Bytes2Hex(ethutil.LeftPadBytes(ethutil.Big(str).Bytes(), 32))
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		}
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		dataStr += str
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	}
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	object["data"] = dataStr
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	conv := make(map[string]string)
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	for key, value := range object {
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		if v, ok := value.(string); ok {
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			conv[key] = v
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		}
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	}
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	return conv
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}
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func (self *UiLib) Transact(params map[string]interface{}) (*ethpipe.JSReceipt, error) {
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	object := mapToTxParams(params)
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	return self.JSPipe.Transact(
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		object["from"],
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		object["to"],
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		object["value"],
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		object["gas"],
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		object["gasPrice"],
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		object["data"],
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	)
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}
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func (self *UiLib) Compile(code string) (string, error) {
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	bcode, err := ethutil.Compile(code, false)
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	if err != nil {
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		return err.Error(), err
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	}
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	return ethutil.Bytes2Hex(bcode), err
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}
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func (self *UiLib) Call(params map[string]interface{}) (string, error) {
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	object := mapToTxParams(params)
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	return self.JSPipe.Execute(
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		object["to"],
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		object["value"],
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		object["gas"],
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		object["gasPrice"],
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		object["data"],
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	)
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}
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