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// Copyright 2015 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package api
import (
"fmt"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/rpc/codec"
"github.com/ethereum/go-ethereum/rpc/shared"
"github.com/ethereum/go-ethereum/xeth"
)
const (
PersonalApiVersion = "1.0"
)
var (
// mapping between methods and handlers
personalMapping = map[string]personalhandler{
"personal_listAccounts": (*personalApi).ListAccounts,
"personal_newAccount": (*personalApi).NewAccount,
"personal_unlockAccount": (*personalApi).UnlockAccount,
}
)
// net callback handler
type personalhandler func(*personalApi, *shared.Request) (interface{}, error)
// net api provider
type personalApi struct {
xeth *xeth.XEth
ethereum *eth.Ethereum
methods map[string]personalhandler
codec codec.ApiCoder
}
// create a new net api instance
func NewPersonalApi(xeth *xeth.XEth, eth *eth.Ethereum, coder codec.Codec) *personalApi {
return &personalApi{
xeth: xeth,
ethereum: eth,
methods: personalMapping,
codec: coder.New(nil),
}
}
// collection with supported methods
func (self *personalApi) Methods() []string {
methods := make([]string, len(self.methods))
i := 0
for k := range self.methods {
methods[i] = k
i++
}
return methods
}
// Execute given request
func (self *personalApi) Execute(req *shared.Request) (interface{}, error) {
if callback, ok := self.methods[req.Method]; ok {
return callback(self, req)
}
return nil, shared.NewNotImplementedError(req.Method)
}
func (self *personalApi) Name() string {
return shared.PersonalApiName
}
func (self *personalApi) ApiVersion() string {
return PersonalApiVersion
}
func (self *personalApi) ListAccounts(req *shared.Request) (interface{}, error) {
return self.xeth.Accounts(), nil
}
func (self *personalApi) NewAccount(req *shared.Request) (interface{}, error) {
args := new(NewAccountArgs)
if err := self.codec.Decode(req.Params, &args); err != nil {
return nil, shared.NewDecodeParamError(err.Error())
}
var passwd string
if args.Passphrase == nil {
fe := self.xeth.Frontend()
if fe == nil {
return false, fmt.Errorf("unable to create account: unable to interact with user")
}
var ok bool
passwd, ok = fe.AskPassword()
if !ok {
return false, fmt.Errorf("unable to create account: no password given")
}
} else {
passwd = *args.Passphrase
}
am := self.ethereum.AccountManager()
acc, err := am.NewAccount(passwd)
return acc.Address.Hex(), err
}
func (self *personalApi) UnlockAccount(req *shared.Request) (interface{}, error) {
args := new(UnlockAccountArgs)
if err := self.codec.Decode(req.Params, &args); err != nil {
return nil, shared.NewDecodeParamError(err.Error())
}
if args.Passphrase == nil {
fe := self.xeth.Frontend()
if fe == nil {
return false, fmt.Errorf("No password provided")
}
return fe.UnlockAccount(common.HexToAddress(args.Address).Bytes()), nil
}
am := self.ethereum.AccountManager()
addr := common.HexToAddress(args.Address)
err := am.TimedUnlock(addr, *args.Passphrase, time.Duration(args.Duration)*time.Second)
return err == nil, err
}