diff options
Diffstat (limited to 'cmd/ethereum/js.go')
| -rw-r--r-- | cmd/ethereum/js.go | 246 |
1 files changed, 0 insertions, 246 deletions
diff --git a/cmd/ethereum/js.go b/cmd/ethereum/js.go deleted file mode 100644 index 8e88a1c54..000000000 --- a/cmd/ethereum/js.go +++ /dev/null @@ -1,246 +0,0 @@ -// Copyright (c) 2013-2014, Jeffrey Wilcke. All rights reserved. -// -// This library 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 2.1 of the License, or (at your option) any later version. -// -// This library 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 this library; if not, write to the Free Software -// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, -// MA 02110-1301 USA - -package main - -import ( - "bufio" - "fmt" - "os" - "path" - "strings" - - "github.com/ethereum/go-ethereum/cmd/utils" - "github.com/ethereum/go-ethereum/core/types" - "github.com/ethereum/go-ethereum/eth" - re "github.com/ethereum/go-ethereum/jsre" - "github.com/ethereum/go-ethereum/rpc" - "github.com/ethereum/go-ethereum/xeth" - "github.com/peterh/liner" - "github.com/robertkrimen/otto" -) - -type prompter interface { - AppendHistory(string) - Prompt(p string) (string, error) - PasswordPrompt(p string) (string, error) -} - -type dumbterm struct{ r *bufio.Reader } - -func (r dumbterm) Prompt(p string) (string, error) { - fmt.Print(p) - return r.r.ReadString('\n') -} - -func (r dumbterm) PasswordPrompt(p string) (string, error) { - fmt.Println("!! Unsupported terminal, password will echo.") - fmt.Print(p) - input, err := bufio.NewReader(os.Stdin).ReadString('\n') - fmt.Println() - return input, err -} - -func (r dumbterm) AppendHistory(string) {} - -type jsre struct { - re *re.JSRE - ethereum *eth.Ethereum - xeth *xeth.XEth - ps1 string - atexit func() - - prompter -} - -func newJSRE(ethereum *eth.Ethereum, libPath string, interactive bool) *jsre { - js := &jsre{ethereum: ethereum, ps1: "> "} - js.xeth = xeth.New(ethereum, js) - js.re = re.New(libPath) - js.apiBindings() - js.adminBindings() - - if !liner.TerminalSupported() || !interactive { - js.prompter = dumbterm{bufio.NewReader(os.Stdin)} - } else { - lr := liner.NewLiner() - js.withHistory(func(hist *os.File) { lr.ReadHistory(hist) }) - lr.SetCtrlCAborts(true) - js.prompter = lr - js.atexit = func() { - js.withHistory(func(hist *os.File) { hist.Truncate(0); lr.WriteHistory(hist) }) - lr.Close() - } - } - return js -} - -func (js *jsre) apiBindings() { - - ethApi := rpc.NewEthereumApi(js.xeth, js.ethereum.DataDir) - ethApi.Close() - //js.re.Bind("jeth", rpc.NewJeth(ethApi, js.re.ToVal)) - - jeth := rpc.NewJeth(ethApi, js.re.ToVal, js.re) - //js.re.Bind("jeth", jeth) - js.re.Set("jeth", struct{}{}) - t, _ := js.re.Get("jeth") - jethObj := t.Object() - jethObj.Set("send", jeth.Send) - - err := js.re.Compile("bignumber.js", re.BigNumber_JS) - if err != nil { - utils.Fatalf("Error loading bignumber.js: %v", err) - } - - // we need to declare a dummy setTimeout. Otto does not support it - _, err = js.re.Eval("setTimeout = function(cb, delay) {};") - if err != nil { - utils.Fatalf("Error defining setTimeout: %v", err) - } - - err = js.re.Compile("ethereum.js", re.Ethereum_JS) - if err != nil { - utils.Fatalf("Error loading ethereum.js: %v", err) - } - - _, err = js.re.Eval("var web3 = require('ethereum.js');") - if err != nil { - utils.Fatalf("Error requiring web3: %v", err) - } - - _, err = js.re.Eval("web3.setProvider(jeth)") - if err != nil { - utils.Fatalf("Error setting web3 provider: %v", err) - } - _, err = js.re.Eval(` -var eth = web3.eth; -var shh = web3.shh; -var db = web3.db; -var net = web3.net; - `) - if err != nil { - utils.Fatalf("Error setting namespaces: %v", err) - } - -} - -func (self *jsre) ConfirmTransaction(tx *types.Transaction) bool { - p := fmt.Sprintf("Confirm Transaction %v\n[y/n] ", tx) - answer, _ := self.Prompt(p) - return strings.HasPrefix(strings.Trim(answer, " "), "y") -} - -func (self *jsre) UnlockAccount(addr []byte) bool { - fmt.Printf("Please unlock account %x.\n", addr) - pass, err := self.PasswordPrompt("Passphrase: ") - if err != nil { - return false - } - // TODO: allow retry - if err := self.ethereum.AccountManager().Unlock(addr, pass); err != nil { - return false - } else { - fmt.Println("Account is now unlocked for this session.") - return true - } -} - -func (self *jsre) exec(filename string) error { - if err := self.re.Exec(filename); err != nil { - return fmt.Errorf("Javascript Error: %v", err) - } - return nil -} - -func (self *jsre) interactive() { - for { - input, err := self.Prompt(self.ps1) - if err != nil { - break - } - if input == "" { - continue - } - str += input + "\n" - self.setIndent() - if indentCount <= 0 { - if input == "exit" { - break - } - hist := str[:len(str)-1] - self.AppendHistory(hist) - self.parseInput(str) - str = "" - } - } - if self.atexit != nil { - self.atexit() - } -} - -func (self *jsre) withHistory(op func(*os.File)) { - hist, err := os.OpenFile(path.Join(self.ethereum.DataDir, "history"), os.O_RDWR|os.O_CREATE, os.ModePerm) - if err != nil { - fmt.Printf("unable to open history file: %v\n", err) - return - } - op(hist) - hist.Close() -} - -func (self *jsre) parseInput(code string) { - defer func() { - if r := recover(); r != nil { - fmt.Println("[native] error", r) - } - }() - value, err := self.re.Run(code) - if err != nil { - if ottoErr, ok := err.(*otto.Error); ok { - fmt.Println(ottoErr.String()) - } else { - fmt.Println(err) - } - return - } - self.printValue(value) -} - -var indentCount = 0 -var str = "" - -func (self *jsre) setIndent() { - open := strings.Count(str, "{") - open += strings.Count(str, "(") - closed := strings.Count(str, "}") - closed += strings.Count(str, ")") - indentCount = open - closed - if indentCount <= 0 { - self.ps1 = "> " - } else { - self.ps1 = strings.Join(make([]string, indentCount*2), "..") - self.ps1 += " " - } -} - -func (self *jsre) printValue(v interface{}) { - val, err := self.re.PrettyPrint(v) - if err == nil { - fmt.Printf("%v", val) - } -} |