mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2024-12-24 20:47:16 +00:00
293 lines
6.8 KiB
Go
293 lines
6.8 KiB
Go
// 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"
|
|
"io/ioutil"
|
|
"os"
|
|
"path"
|
|
"strings"
|
|
|
|
"github.com/ethereum/go-ethereum/core/types"
|
|
"github.com/ethereum/go-ethereum/eth"
|
|
"github.com/ethereum/go-ethereum/ethutil"
|
|
"github.com/ethereum/go-ethereum/javascript"
|
|
"github.com/ethereum/go-ethereum/state"
|
|
"github.com/ethereum/go-ethereum/xeth"
|
|
"github.com/obscuren/otto"
|
|
"github.com/peterh/liner"
|
|
)
|
|
|
|
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 *javascript.JSRE
|
|
ethereum *eth.Ethereum
|
|
xeth *xeth.XEth
|
|
ps1 string
|
|
atexit func()
|
|
|
|
prompter
|
|
}
|
|
|
|
func newJSRE(ethereum *eth.Ethereum) *jsre {
|
|
js := &jsre{ethereum: ethereum, ps1: "> "}
|
|
js.xeth = xeth.New(ethereum, js)
|
|
js.re = javascript.NewJSRE(js.xeth)
|
|
js.initStdFuncs()
|
|
|
|
if !liner.TerminalSupported() {
|
|
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 (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 {
|
|
file, err := os.Open(filename)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
content, err := ioutil.ReadAll(file)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if _, err := self.re.Run(string(content)); 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 {
|
|
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{}) {
|
|
method, _ := self.re.Vm.Get("prettyPrint")
|
|
v, err := self.re.Vm.ToValue(v)
|
|
if err == nil {
|
|
val, err := method.Call(method, v)
|
|
if err == nil {
|
|
fmt.Printf("%v", val)
|
|
}
|
|
}
|
|
}
|
|
|
|
func (self *jsre) initStdFuncs() {
|
|
t, _ := self.re.Vm.Get("eth")
|
|
eth := t.Object()
|
|
eth.Set("connect", self.connect)
|
|
eth.Set("stopMining", self.stopMining)
|
|
eth.Set("startMining", self.startMining)
|
|
eth.Set("dump", self.dump)
|
|
eth.Set("export", self.export)
|
|
}
|
|
|
|
/*
|
|
* The following methods are natively implemented javascript functions.
|
|
*/
|
|
|
|
func (self *jsre) dump(call otto.FunctionCall) otto.Value {
|
|
var block *types.Block
|
|
|
|
if len(call.ArgumentList) > 0 {
|
|
if call.Argument(0).IsNumber() {
|
|
num, _ := call.Argument(0).ToInteger()
|
|
block = self.ethereum.ChainManager().GetBlockByNumber(uint64(num))
|
|
} else if call.Argument(0).IsString() {
|
|
hash, _ := call.Argument(0).ToString()
|
|
block = self.ethereum.ChainManager().GetBlock(ethutil.Hex2Bytes(hash))
|
|
} else {
|
|
fmt.Println("invalid argument for dump. Either hex string or number")
|
|
}
|
|
|
|
if block == nil {
|
|
fmt.Println("block not found")
|
|
|
|
return otto.UndefinedValue()
|
|
}
|
|
|
|
} else {
|
|
block = self.ethereum.ChainManager().CurrentBlock()
|
|
}
|
|
|
|
statedb := state.New(block.Root(), self.ethereum.StateDb())
|
|
|
|
v, _ := self.re.Vm.ToValue(statedb.RawDump())
|
|
|
|
return v
|
|
}
|
|
|
|
func (self *jsre) stopMining(call otto.FunctionCall) otto.Value {
|
|
self.xeth.Miner().Stop()
|
|
return otto.TrueValue()
|
|
}
|
|
|
|
func (self *jsre) startMining(call otto.FunctionCall) otto.Value {
|
|
self.xeth.Miner().Start()
|
|
return otto.TrueValue()
|
|
}
|
|
|
|
func (self *jsre) connect(call otto.FunctionCall) otto.Value {
|
|
nodeURL, err := call.Argument(0).ToString()
|
|
if err != nil {
|
|
return otto.FalseValue()
|
|
}
|
|
if err := self.ethereum.SuggestPeer(nodeURL); err != nil {
|
|
return otto.FalseValue()
|
|
}
|
|
return otto.TrueValue()
|
|
}
|
|
|
|
func (self *jsre) export(call otto.FunctionCall) otto.Value {
|
|
if len(call.ArgumentList) == 0 {
|
|
fmt.Println("err: require file name")
|
|
return otto.FalseValue()
|
|
}
|
|
|
|
fn, err := call.Argument(0).ToString()
|
|
if err != nil {
|
|
fmt.Println(err)
|
|
return otto.FalseValue()
|
|
}
|
|
|
|
data := self.ethereum.ChainManager().Export()
|
|
|
|
if err := ethutil.WriteFile(fn, data); err != nil {
|
|
fmt.Println(err)
|
|
return otto.FalseValue()
|
|
}
|
|
|
|
return otto.TrueValue()
|
|
}
|