package ethui import ( "bitbucket.org/kardianos/osext" "fmt" "github.com/ethereum/eth-go" "github.com/ethereum/eth-go/ethchain" "github.com/ethereum/eth-go/ethutil" "github.com/niemeyer/qml" "github.com/obscuren/mutan" "math/big" "os" "path" "path/filepath" "runtime" "strings" ) type memAddr struct { Num string Value string } // UI Library that has some basic functionality exposed type UiLib struct { engine *qml.Engine eth *eth.Ethereum connected bool assetPath string // The main application window win *qml.Window Db *Debugger } func NewUiLib(engine *qml.Engine, eth *eth.Ethereum, assetPath string) *UiLib { if assetPath == "" { assetPath = DefaultAssetPath() } return &UiLib{engine: engine, eth: eth, assetPath: assetPath} } // Opens a QML file (external application) func (ui *UiLib) Open(path string) { component, err := ui.engine.LoadFile(path[7:]) if err != nil { ethutil.Config.Log.Debugln(err) } win := component.CreateWindow(nil) go func() { win.Show() win.Wait() }() } func (ui *UiLib) Connect(button qml.Object) { if !ui.connected { ui.eth.Start() ui.connected = true button.Set("enabled", false) } } func (ui *UiLib) ConnectToPeer(addr string) { ui.eth.ConnectToPeer(addr) } func (ui *UiLib) AssetPath(p string) string { return path.Join(ui.assetPath, p) } func DefaultAssetPath() string { var base string // If the current working directory is the go-ethereum dir // assume a debug build and use the source directory as // asset directory. pwd, _ := os.Getwd() if pwd == path.Join(os.Getenv("GOPATH"), "src", "github.com", "ethereum", "go-ethereum", "ethereal") { base = path.Join(pwd, "assets") } else { switch runtime.GOOS { case "darwin": // Get Binary Directory exedir, _ := osext.ExecutableFolder() base = filepath.Join(exedir, "../Resources") case "linux": base = "/usr/share/ethereal" case "window": fallthrough default: base = "." } } return base } func (ui *UiLib) DebugTx(recipient, valueStr, gasStr, gasPriceStr, data string) { state := ui.eth.BlockChain().CurrentBlock.State() mainInput, _ := ethutil.PreProcess(data) asm, err := mutan.Compile(strings.NewReader(mainInput), false) if err != nil { fmt.Println(err) for _, e := range err { ui.win.Root().Call("addDebugMessage", e.Error()) } } callerScript := ethutil.Assemble(asm...) dis := ethchain.Disassemble(callerScript) ui.win.Root().Call("clearAsm") for _, str := range dis { ui.win.Root().Call("setAsm", str) } callerTx := ethchain.NewContractCreationTx(ethutil.Big(valueStr), ethutil.Big(gasPriceStr), callerScript) // Contract addr as test address keyPair := ethutil.Config.Db.GetKeys()[0] account := ui.eth.StateManager().GetAddrState(keyPair.Address()).Account c := ethchain.MakeContract(callerTx, state) callerClosure := ethchain.NewClosure(account, c, c.Script(), state, ethutil.Big(gasStr), new(big.Int)) block := ui.eth.BlockChain().CurrentBlock vm := ethchain.NewVm(state, ethchain.RuntimeVars{ Origin: account.Address(), BlockNumber: block.BlockInfo().Number, PrevHash: block.PrevHash, Coinbase: block.Coinbase, Time: block.Time, Diff: block.Difficulty, TxData: nil, }) go func() { callerClosure.Call(vm, nil, ui.Db.halting) state.Reset() }() } func (ui *UiLib) Next() { ui.Db.Next() } type Debugger struct { win *qml.Window N chan bool } func (d *Debugger) halting(pc int, op ethchain.OpCode, mem *ethchain.Memory, stack *ethchain.Stack) { d.win.Root().Call("setInstruction", pc) d.win.Root().Call("clearMem") d.win.Root().Call("clearStack") addr := 0 for i := 0; i+32 <= mem.Len(); i += 32 { d.win.Root().Call("setMem", memAddr{fmt.Sprintf("%03d", addr), fmt.Sprintf("% x", mem.Data()[i:i+32])}) addr++ } for _, val := range stack.Data() { d.win.Root().Call("setStack", val.String()) } out: for { select { case <-d.N: break out default: } } } func (d *Debugger) Next() { d.N <- true }