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path: root/cmd/ethereum/admin.go
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package main

import (
    "fmt"
    "net"
    "net/http"
    "os"
    "time"

    "github.com/ethereum/go-ethereum/cmd/utils"
    "github.com/ethereum/go-ethereum/common"
    "github.com/ethereum/go-ethereum/core/types"
    "github.com/ethereum/go-ethereum/rlp"
    "github.com/ethereum/go-ethereum/rpc"
    "github.com/ethereum/go-ethereum/state"
    "github.com/ethereum/go-ethereum/xeth"
    "github.com/obscuren/otto"
)

/*
node admin bindings
*/

func (js *jsre) adminBindings() {
    js.re.Set("admin", struct{}{})
    t, _ := js.re.Get("admin")
    admin := t.Object()
    admin.Set("suggestPeer", js.suggestPeer)
    admin.Set("startRPC", js.startRPC)
    admin.Set("startMining", js.startMining)
    admin.Set("stopMining", js.stopMining)
    admin.Set("nodeInfo", js.nodeInfo)
    admin.Set("peers", js.peers)
    admin.Set("newAccount", js.newAccount)
    admin.Set("unlock", js.unlock)
    admin.Set("import", js.importChain)
    admin.Set("export", js.exportChain)
    admin.Set("dumpBlock", js.dumpBlock)
}

func (js *jsre) startMining(call otto.FunctionCall) otto.Value {
    _, err := call.Argument(0).ToInteger()
    if err != nil {
        fmt.Println(err)
        return otto.FalseValue()
    }
    // threads now ignored
    err = js.ethereum.StartMining()
    if err != nil {
        fmt.Println(err)
        return otto.FalseValue()
    }
    return otto.TrueValue()
}

func (js *jsre) stopMining(call otto.FunctionCall) otto.Value {
    js.ethereum.StopMining()
    return otto.TrueValue()
}

func (js *jsre) startRPC(call otto.FunctionCall) otto.Value {
    addr, err := call.Argument(0).ToString()
    if err != nil {
        fmt.Println(err)
        return otto.FalseValue()
    }
    port, err := call.Argument(1).ToInteger()
    if err != nil {
        fmt.Println(err)
        return otto.FalseValue()
    }
    dataDir := js.ethereum.DataDir

    l, err := net.Listen("tcp", fmt.Sprintf("%s:%d", addr, port))
    if err != nil {
        fmt.Printf("Can't listen on %s:%d: %v", addr, port, err)
        return otto.FalseValue()
    }
    go http.Serve(l, rpc.JSONRPC(xeth.New(js.ethereum, nil), dataDir))
    return otto.TrueValue()
}

func (js *jsre) suggestPeer(call otto.FunctionCall) otto.Value {
    nodeURL, err := call.Argument(0).ToString()
    if err != nil {
        fmt.Println(err)
        return otto.FalseValue()
    }
    err = js.ethereum.SuggestPeer(nodeURL)
    if err != nil {
        fmt.Println(err)
        return otto.FalseValue()
    }
    return otto.TrueValue()
}

func (js *jsre) unlock(call otto.FunctionCall) otto.Value {
    addr, err := call.Argument(0).ToString()
    if err != nil {
        fmt.Println(err)
        return otto.FalseValue()
    }
    seconds, err := call.Argument(2).ToInteger()
    if err != nil {
        fmt.Println(err)
        return otto.FalseValue()
    }
    arg := call.Argument(1)
    var passphrase string
    if arg.IsUndefined() {
        fmt.Println("Please enter a passphrase now.")
        passphrase, err = readPassword("Passphrase: ", true)
        if err != nil {
            utils.Fatalf("%v", err)
        }
    } else {
        passphrase, err = arg.ToString()
        if err != nil {
            fmt.Println(err)
            return otto.FalseValue()
        }
    }
    am := js.ethereum.AccountManager()
    // err := am.Unlock(common.FromHex(split[0]), split[1])
    // if err != nil {
    //  utils.Fatalf("Unlock account failed '%v'", err)
    // }
    err = am.TimedUnlock(common.FromHex(addr), passphrase, time.Duration(seconds)*time.Second)
    if err != nil {
        fmt.Printf("Unlock account failed '%v'\n", err)
        return otto.FalseValue()
    }
    return otto.TrueValue()
}

func (js *jsre) newAccount(call otto.FunctionCall) otto.Value {
    arg := call.Argument(0)
    var passphrase string
    if arg.IsUndefined() {
        fmt.Println("The new account will be encrypted with a passphrase.")
        fmt.Println("Please enter a passphrase now.")
        auth, err := readPassword("Passphrase: ", true)
        if err != nil {
            utils.Fatalf("%v", err)
        }
        confirm, err := readPassword("Repeat Passphrase: ", false)
        if err != nil {
            utils.Fatalf("%v", err)
        }
        if auth != confirm {
            utils.Fatalf("Passphrases did not match.")
        }
        passphrase = auth
    } else {
        var err error
        passphrase, err = arg.ToString()
        if err != nil {
            fmt.Println(err)
            return otto.FalseValue()
        }
    }
    acct, err := js.ethereum.AccountManager().NewAccount(passphrase)
    if err != nil {
        fmt.Printf("Could not create the account: %v", err)
        return otto.UndefinedValue()
    }
    return js.re.ToVal(common.Bytes2Hex(acct.Address))
}

func (js *jsre) nodeInfo(call otto.FunctionCall) otto.Value {
    return js.re.ToVal(js.ethereum.NodeInfo())
}

func (js *jsre) peers(call otto.FunctionCall) otto.Value {
    return js.re.ToVal(js.ethereum.PeersInfo())
}

func (js *jsre) importChain(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()
    }

    var fh *os.File
    fh, err = os.OpenFile(fn, os.O_RDONLY, os.ModePerm)
    if err != nil {
        fmt.Println(err)
        return otto.FalseValue()
    }
    defer fh.Close()

    var blocks types.Blocks
    if err = rlp.Decode(fh, &blocks); err != nil {
        fmt.Println(err)
        return otto.FalseValue()
    }

    js.ethereum.ChainManager().Reset()
    if err = js.ethereum.ChainManager().InsertChain(blocks); err != nil {
        fmt.Println(err)
        return otto.FalseValue()
    }

    return otto.TrueValue()
}

func (js *jsre) exportChain(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 := js.ethereum.ChainManager().Export()
    if err := common.WriteFile(fn, data); err != nil {
        fmt.Println(err)
        return otto.FalseValue()
    }

    return otto.TrueValue()
}

func (js *jsre) dumpBlock(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 = js.ethereum.ChainManager().GetBlockByNumber(uint64(num))
        } else if call.Argument(0).IsString() {
            hash, _ := call.Argument(0).ToString()
            block = js.ethereum.ChainManager().GetBlock(common.HexToHash(hash))
        } else {
            fmt.Println("invalid argument for dump. Either hex string or number")
        }

    } else {
        block = js.ethereum.ChainManager().CurrentBlock()
    }
    if block == nil {
        fmt.Println("block not found")
        return otto.UndefinedValue()
    }

    statedb := state.New(block.Root(), js.ethereum.StateDb())
    dump := statedb.RawDump()
    return js.re.ToVal(dump)

}