forked from cerc-io/plugeth
1c872ddf4b
Logs are now recorded per transactions instead of tossing them out after each transaction. This should also fix an issue with `eth_getFilterLogs` (#629) Also now implemented are the `transactionHash, blockHash, transactionIndex, logIndex` on logs. Closes #654.
742 lines
18 KiB
Go
742 lines
18 KiB
Go
// eXtended ETHereum
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package xeth
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"math/big"
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"sync"
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"time"
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"github.com/ethereum/go-ethereum/accounts"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/state"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/eth"
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"github.com/ethereum/go-ethereum/event/filter"
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"github.com/ethereum/go-ethereum/logger"
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"github.com/ethereum/go-ethereum/miner"
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"github.com/ethereum/go-ethereum/rlp"
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)
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var (
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pipelogger = logger.NewLogger("XETH")
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filterTickerTime = 5 * time.Minute
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defaultGasPrice = big.NewInt(10000000000000) //150000000000
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defaultGas = big.NewInt(90000) //500000
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)
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func DefaultGas() *big.Int { return new(big.Int).Set(defaultGas) }
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func DefaultGasPrice() *big.Int { return new(big.Int).Set(defaultGasPrice) }
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type XEth struct {
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backend *eth.Ethereum
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frontend Frontend
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state *State
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whisper *Whisper
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quit chan struct{}
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filterManager *filter.FilterManager
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logMut sync.RWMutex
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logs map[int]*logFilter
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messagesMut sync.RWMutex
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messages map[int]*whisperFilter
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// regmut sync.Mutex
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// register map[string][]*interface{} // TODO improve return type
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agent *miner.RemoteAgent
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}
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// New creates an XEth that uses the given frontend.
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// If a nil Frontend is provided, a default frontend which
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// confirms all transactions will be used.
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func New(eth *eth.Ethereum, frontend Frontend) *XEth {
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xeth := &XEth{
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backend: eth,
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frontend: frontend,
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whisper: NewWhisper(eth.Whisper()),
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quit: make(chan struct{}),
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filterManager: filter.NewFilterManager(eth.EventMux()),
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logs: make(map[int]*logFilter),
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messages: make(map[int]*whisperFilter),
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agent: miner.NewRemoteAgent(),
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}
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eth.Miner().Register(xeth.agent)
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if frontend == nil {
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xeth.frontend = dummyFrontend{}
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}
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xeth.state = NewState(xeth, xeth.backend.ChainManager().TransState())
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go xeth.start()
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go xeth.filterManager.Start()
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return xeth
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}
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func (self *XEth) start() {
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timer := time.NewTicker(2 * time.Second)
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done:
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for {
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select {
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case <-timer.C:
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self.logMut.Lock()
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self.messagesMut.Lock()
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for id, filter := range self.logs {
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if time.Since(filter.timeout) > filterTickerTime {
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self.filterManager.UninstallFilter(id)
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delete(self.logs, id)
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}
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}
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for id, filter := range self.messages {
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if time.Since(filter.timeout) > filterTickerTime {
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self.Whisper().Unwatch(id)
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delete(self.messages, id)
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}
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}
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self.messagesMut.Unlock()
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self.logMut.Unlock()
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case <-self.quit:
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break done
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}
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}
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}
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func (self *XEth) stop() {
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close(self.quit)
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}
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func cAddress(a []string) []common.Address {
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bslice := make([]common.Address, len(a))
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for i, addr := range a {
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bslice[i] = common.HexToAddress(addr)
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}
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return bslice
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}
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func cTopics(t [][]string) [][]common.Hash {
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topics := make([][]common.Hash, len(t))
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for i, iv := range t {
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topics[i] = make([]common.Hash, len(iv))
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for j, jv := range iv {
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topics[i][j] = common.HexToHash(jv)
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}
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}
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return topics
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}
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func (self *XEth) RemoteMining() *miner.RemoteAgent { return self.agent }
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func (self *XEth) AtStateNum(num int64) *XEth {
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var st *state.StateDB
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switch num {
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case -2:
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st = self.backend.Miner().PendingState().Copy()
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default:
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if block := self.getBlockByHeight(num); block != nil {
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st = state.New(block.Root(), self.backend.StateDb())
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} else {
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st = state.New(self.backend.ChainManager().GetBlockByNumber(0).Root(), self.backend.StateDb())
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}
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}
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return self.withState(st)
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}
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func (self *XEth) withState(statedb *state.StateDB) *XEth {
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xeth := &XEth{
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backend: self.backend,
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}
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xeth.state = NewState(xeth, statedb)
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return xeth
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}
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func (self *XEth) State() *State { return self.state }
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func (self *XEth) Whisper() *Whisper { return self.whisper }
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func (self *XEth) getBlockByHeight(height int64) *types.Block {
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var num uint64
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switch height {
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case -2:
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return self.backend.Miner().PendingBlock()
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case -1:
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return self.CurrentBlock()
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default:
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if height < 0 {
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return nil
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}
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num = uint64(height)
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}
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return self.backend.ChainManager().GetBlockByNumber(num)
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}
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func (self *XEth) BlockByHash(strHash string) *Block {
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hash := common.HexToHash(strHash)
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block := self.backend.ChainManager().GetBlock(hash)
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return NewBlock(block)
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}
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func (self *XEth) EthBlockByHash(strHash string) *types.Block {
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hash := common.HexToHash(strHash)
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block := self.backend.ChainManager().GetBlock(hash)
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return block
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}
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func (self *XEth) EthTransactionByHash(hash string) (tx *types.Transaction, blhash common.Hash, blnum *big.Int, txi uint64) {
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data, _ := self.backend.ExtraDb().Get(common.FromHex(hash))
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if len(data) != 0 {
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tx = types.NewTransactionFromBytes(data)
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}
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// meta
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var txExtra struct {
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BlockHash common.Hash
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BlockIndex uint64
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Index uint64
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}
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v, _ := self.backend.ExtraDb().Get(append(common.FromHex(hash), 0x0001))
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r := bytes.NewReader(v)
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err := rlp.Decode(r, &txExtra)
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if err == nil {
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blhash = txExtra.BlockHash
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blnum = big.NewInt(int64(txExtra.BlockIndex))
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txi = txExtra.Index
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} else {
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pipelogger.Errorln(err)
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}
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return
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}
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func (self *XEth) BlockByNumber(num int64) *Block {
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return NewBlock(self.getBlockByHeight(num))
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}
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func (self *XEth) EthBlockByNumber(num int64) *types.Block {
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return self.getBlockByHeight(num)
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}
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func (self *XEth) CurrentBlock() *types.Block {
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return self.backend.ChainManager().CurrentBlock()
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}
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func (self *XEth) Block(v interface{}) *Block {
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if n, ok := v.(int32); ok {
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return self.BlockByNumber(int64(n))
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} else if str, ok := v.(string); ok {
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return self.BlockByHash(str)
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} else if f, ok := v.(float64); ok { // Don't ask ...
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return self.BlockByNumber(int64(f))
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}
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return nil
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}
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func (self *XEth) Accounts() []string {
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// TODO: check err?
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accounts, _ := self.backend.AccountManager().Accounts()
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accountAddresses := make([]string, len(accounts))
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for i, ac := range accounts {
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accountAddresses[i] = common.ToHex(ac.Address)
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}
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return accountAddresses
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}
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func (self *XEth) DbPut(key, val []byte) bool {
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self.backend.ExtraDb().Put(key, val)
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return true
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}
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func (self *XEth) DbGet(key []byte) ([]byte, error) {
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val, err := self.backend.ExtraDb().Get(key)
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return val, err
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}
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func (self *XEth) PeerCount() int {
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return self.backend.PeerCount()
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}
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func (self *XEth) IsMining() bool {
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return self.backend.IsMining()
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}
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func (self *XEth) EthVersion() string {
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return fmt.Sprintf("%d", self.backend.EthVersion())
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}
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func (self *XEth) NetworkVersion() string {
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return fmt.Sprintf("%d", self.backend.NetVersion())
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}
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func (self *XEth) WhisperVersion() string {
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return fmt.Sprintf("%d", self.backend.ShhVersion())
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}
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func (self *XEth) ClientVersion() string {
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return self.backend.ClientVersion()
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}
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func (self *XEth) SetMining(shouldmine bool) bool {
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ismining := self.backend.IsMining()
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if shouldmine && !ismining {
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err := self.backend.StartMining()
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return err == nil
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}
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if ismining && !shouldmine {
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self.backend.StopMining()
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}
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return self.backend.IsMining()
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}
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func (self *XEth) IsListening() bool {
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return self.backend.IsListening()
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}
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func (self *XEth) Coinbase() string {
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eb, _ := self.backend.Etherbase()
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return eb.Hex()
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}
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func (self *XEth) NumberToHuman(balance string) string {
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b := common.Big(balance)
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return common.CurrencyToString(b)
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}
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func (self *XEth) StorageAt(addr, storageAddr string) string {
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return common.ToHex(self.State().state.GetState(common.HexToAddress(addr), common.HexToHash(storageAddr)))
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}
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func (self *XEth) BalanceAt(addr string) string {
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return common.ToHex(self.State().state.GetBalance(common.HexToAddress(addr)).Bytes())
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}
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func (self *XEth) TxCountAt(address string) int {
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return int(self.State().state.GetNonce(common.HexToAddress(address)))
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}
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func (self *XEth) CodeAt(address string) string {
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return common.ToHex(self.State().state.GetCode(common.HexToAddress(address)))
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}
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func (self *XEth) CodeAtBytes(address string) []byte {
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return self.State().SafeGet(address).Code()
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}
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func (self *XEth) IsContract(address string) bool {
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return len(self.State().SafeGet(address).Code()) > 0
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}
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func (self *XEth) SecretToAddress(key string) string {
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pair, err := crypto.NewKeyPairFromSec(common.FromHex(key))
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if err != nil {
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return ""
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}
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return common.ToHex(pair.Address())
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}
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func (self *XEth) RegisterFilter(earliest, latest int64, skip, max int, address []string, topics [][]string) int {
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var id int
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filter := core.NewFilter(self.backend)
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filter.SetEarliestBlock(earliest)
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filter.SetLatestBlock(latest)
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filter.SetSkip(skip)
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filter.SetMax(max)
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filter.SetAddress(cAddress(address))
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filter.SetTopics(cTopics(topics))
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filter.LogsCallback = func(logs state.Logs) {
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self.logMut.Lock()
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defer self.logMut.Unlock()
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self.logs[id].add(logs...)
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}
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id = self.filterManager.InstallFilter(filter)
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self.logs[id] = &logFilter{timeout: time.Now()}
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return id
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}
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func (self *XEth) UninstallFilter(id int) bool {
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if _, ok := self.logs[id]; ok {
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delete(self.logs, id)
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self.filterManager.UninstallFilter(id)
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return true
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}
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return false
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}
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func (self *XEth) NewFilterString(word string) int {
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var id int
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filter := core.NewFilter(self.backend)
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switch word {
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case "pending":
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filter.PendingCallback = func(tx *types.Transaction) {
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self.logMut.Lock()
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defer self.logMut.Unlock()
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self.logs[id].add(&state.Log{})
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}
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case "latest":
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filter.BlockCallback = func(block *types.Block, logs state.Logs) {
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self.logMut.Lock()
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defer self.logMut.Unlock()
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for _, log := range logs {
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self.logs[id].add(log)
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}
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self.logs[id].add(&state.Log{})
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}
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}
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id = self.filterManager.InstallFilter(filter)
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self.logs[id] = &logFilter{timeout: time.Now()}
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return id
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}
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func (self *XEth) FilterChanged(id int) state.Logs {
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self.logMut.Lock()
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defer self.logMut.Unlock()
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if self.logs[id] != nil {
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return self.logs[id].get()
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}
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return nil
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}
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func (self *XEth) Logs(id int) state.Logs {
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self.logMut.Lock()
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defer self.logMut.Unlock()
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filter := self.filterManager.GetFilter(id)
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if filter != nil {
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return filter.Find()
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}
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return nil
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}
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func (self *XEth) AllLogs(earliest, latest int64, skip, max int, address []string, topics [][]string) state.Logs {
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filter := core.NewFilter(self.backend)
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filter.SetEarliestBlock(earliest)
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filter.SetLatestBlock(latest)
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filter.SetSkip(skip)
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filter.SetMax(max)
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filter.SetAddress(cAddress(address))
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filter.SetTopics(cTopics(topics))
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return filter.Find()
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}
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func (p *XEth) NewWhisperFilter(opts *Options) int {
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var id int
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opts.Fn = func(msg WhisperMessage) {
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p.messagesMut.Lock()
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defer p.messagesMut.Unlock()
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p.messages[id].add(msg) // = append(p.messages[id], msg)
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}
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id = p.Whisper().Watch(opts)
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p.messages[id] = &whisperFilter{timeout: time.Now()}
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return id
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}
|
|
|
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func (p *XEth) UninstallWhisperFilter(id int) bool {
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if _, ok := p.messages[id]; ok {
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delete(p.messages, id)
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return true
|
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}
|
|
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return false
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}
|
|
|
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func (self *XEth) MessagesChanged(id int) []WhisperMessage {
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self.messagesMut.Lock()
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defer self.messagesMut.Unlock()
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|
|
|
if self.messages[id] != nil {
|
|
return self.messages[id].get()
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// func (self *XEth) Register(args string) bool {
|
|
// self.regmut.Lock()
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// defer self.regmut.Unlock()
|
|
|
|
// if _, ok := self.register[args]; ok {
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// self.register[args] = nil // register with empty
|
|
// }
|
|
// return true
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// }
|
|
|
|
// func (self *XEth) Unregister(args string) bool {
|
|
// self.regmut.Lock()
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// defer self.regmut.Unlock()
|
|
|
|
// if _, ok := self.register[args]; ok {
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// delete(self.register, args)
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// return true
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// }
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|
|
|
// return false
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// }
|
|
|
|
// // TODO improve return type
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|
// func (self *XEth) PullWatchTx(args string) []*interface{} {
|
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// self.regmut.Lock()
|
|
// defer self.regmut.Unlock()
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|
|
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// txs := self.register[args]
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// self.register[args] = nil
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|
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// return txs
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// }
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|
|
|
type KeyVal struct {
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Key string `json:"key"`
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Value string `json:"value"`
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}
|
|
|
|
func (self *XEth) EachStorage(addr string) string {
|
|
var values []KeyVal
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object := self.State().SafeGet(addr)
|
|
it := object.Trie().Iterator()
|
|
for it.Next() {
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values = append(values, KeyVal{common.ToHex(object.Trie().GetKey(it.Key)), common.ToHex(it.Value)})
|
|
}
|
|
|
|
valuesJson, err := json.Marshal(values)
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|
if err != nil {
|
|
return ""
|
|
}
|
|
|
|
return string(valuesJson)
|
|
}
|
|
|
|
func (self *XEth) ToAscii(str string) string {
|
|
padded := common.RightPadBytes([]byte(str), 32)
|
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|
|
return "0x" + common.ToHex(padded)
|
|
}
|
|
|
|
func (self *XEth) FromAscii(str string) string {
|
|
if common.IsHex(str) {
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str = str[2:]
|
|
}
|
|
|
|
return string(bytes.Trim(common.FromHex(str), "\x00"))
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|
}
|
|
|
|
func (self *XEth) FromNumber(str string) string {
|
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if common.IsHex(str) {
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str = str[2:]
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}
|
|
|
|
return common.BigD(common.FromHex(str)).String()
|
|
}
|
|
|
|
func (self *XEth) PushTx(encodedTx string) (string, error) {
|
|
tx := types.NewTransactionFromBytes(common.FromHex(encodedTx))
|
|
err := self.backend.TxPool().Add(tx)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
if tx.To() == nil {
|
|
addr := core.AddressFromMessage(tx)
|
|
return addr.Hex(), nil
|
|
}
|
|
return tx.Hash().Hex(), nil
|
|
}
|
|
|
|
func (self *XEth) Call(fromStr, toStr, valueStr, gasStr, gasPriceStr, dataStr string) (string, error) {
|
|
statedb := self.State().State() //self.eth.ChainManager().TransState()
|
|
msg := callmsg{
|
|
from: statedb.GetOrNewStateObject(common.HexToAddress(fromStr)),
|
|
to: common.HexToAddress(toStr),
|
|
gas: common.Big(gasStr),
|
|
gasPrice: common.Big(gasPriceStr),
|
|
value: common.Big(valueStr),
|
|
data: common.FromHex(dataStr),
|
|
}
|
|
|
|
if msg.gas.Cmp(big.NewInt(0)) == 0 {
|
|
msg.gas = DefaultGas()
|
|
}
|
|
|
|
if msg.gasPrice.Cmp(big.NewInt(0)) == 0 {
|
|
msg.gasPrice = DefaultGasPrice()
|
|
}
|
|
|
|
block := self.CurrentBlock()
|
|
vmenv := core.NewEnv(statedb, self.backend.ChainManager(), msg, block)
|
|
|
|
res, err := vmenv.Call(msg.from, msg.to, msg.data, msg.gas, msg.gasPrice, msg.value)
|
|
return common.ToHex(res), err
|
|
}
|
|
|
|
func (self *XEth) Transact(fromStr, toStr, valueStr, gasStr, gasPriceStr, codeStr string) (string, error) {
|
|
var (
|
|
from = common.HexToAddress(fromStr)
|
|
to = common.HexToAddress(toStr)
|
|
value = common.NewValue(valueStr)
|
|
gas = common.Big(gasStr)
|
|
price = common.Big(gasPriceStr)
|
|
data []byte
|
|
contractCreation bool
|
|
)
|
|
|
|
// TODO if no_private_key then
|
|
//if _, exists := p.register[args.From]; exists {
|
|
// p.register[args.From] = append(p.register[args.From], args)
|
|
//} else {
|
|
/*
|
|
account := accounts.Get(common.FromHex(args.From))
|
|
if account != nil {
|
|
if account.Unlocked() {
|
|
if !unlockAccount(account) {
|
|
return
|
|
}
|
|
}
|
|
|
|
result, _ := account.Transact(common.FromHex(args.To), common.FromHex(args.Value), common.FromHex(args.Gas), common.FromHex(args.GasPrice), common.FromHex(args.Data))
|
|
if len(result) > 0 {
|
|
*reply = common.ToHex(result)
|
|
}
|
|
} else if _, exists := p.register[args.From]; exists {
|
|
p.register[ags.From] = append(p.register[args.From], args)
|
|
}
|
|
*/
|
|
|
|
// TODO: align default values to have the same type, e.g. not depend on
|
|
// common.Value conversions later on
|
|
if gas.Cmp(big.NewInt(0)) == 0 {
|
|
gas = DefaultGas()
|
|
}
|
|
|
|
if price.Cmp(big.NewInt(0)) == 0 {
|
|
price = DefaultGasPrice()
|
|
}
|
|
|
|
data = common.FromHex(codeStr)
|
|
if len(toStr) == 0 {
|
|
contractCreation = true
|
|
}
|
|
|
|
var tx *types.Transaction
|
|
if contractCreation {
|
|
tx = types.NewContractCreationTx(value.BigInt(), gas, price, data)
|
|
} else {
|
|
tx = types.NewTransactionMessage(to, value.BigInt(), gas, price, data)
|
|
}
|
|
|
|
state := self.backend.ChainManager().TxState()
|
|
nonce := state.NewNonce(from)
|
|
tx.SetNonce(nonce)
|
|
|
|
if err := self.sign(tx, from, false); err != nil {
|
|
return "", err
|
|
}
|
|
if err := self.backend.TxPool().Add(tx); err != nil {
|
|
return "", err
|
|
}
|
|
|
|
if contractCreation {
|
|
addr := core.AddressFromMessage(tx)
|
|
pipelogger.Infof("Contract addr %x\n", addr)
|
|
|
|
return core.AddressFromMessage(tx).Hex(), nil
|
|
}
|
|
return tx.Hash().Hex(), nil
|
|
}
|
|
|
|
func (self *XEth) sign(tx *types.Transaction, from common.Address, didUnlock bool) error {
|
|
sig, err := self.backend.AccountManager().Sign(accounts.Account{Address: from.Bytes()}, tx.Hash().Bytes())
|
|
if err == accounts.ErrLocked {
|
|
if didUnlock {
|
|
return fmt.Errorf("sender account still locked after successful unlock")
|
|
}
|
|
if !self.frontend.UnlockAccount(from.Bytes()) {
|
|
return fmt.Errorf("could not unlock sender account")
|
|
}
|
|
// retry signing, the account should now be unlocked.
|
|
return self.sign(tx, from, true)
|
|
} else if err != nil {
|
|
return err
|
|
}
|
|
tx.SetSignatureValues(sig)
|
|
return nil
|
|
}
|
|
|
|
// callmsg is the message type used for call transations.
|
|
type callmsg struct {
|
|
from *state.StateObject
|
|
to common.Address
|
|
gas, gasPrice *big.Int
|
|
value *big.Int
|
|
data []byte
|
|
}
|
|
|
|
// accessor boilerplate to implement core.Message
|
|
func (m callmsg) From() (common.Address, error) { return m.from.Address(), nil }
|
|
func (m callmsg) Nonce() uint64 { return m.from.Nonce() }
|
|
func (m callmsg) To() *common.Address { return &m.to }
|
|
func (m callmsg) GasPrice() *big.Int { return m.gasPrice }
|
|
func (m callmsg) Gas() *big.Int { return m.gas }
|
|
func (m callmsg) Value() *big.Int { return m.value }
|
|
func (m callmsg) Data() []byte { return m.data }
|
|
|
|
type whisperFilter struct {
|
|
messages []WhisperMessage
|
|
timeout time.Time
|
|
id int
|
|
}
|
|
|
|
func (w *whisperFilter) add(msgs ...WhisperMessage) {
|
|
w.messages = append(w.messages, msgs...)
|
|
}
|
|
func (w *whisperFilter) get() []WhisperMessage {
|
|
w.timeout = time.Now()
|
|
tmp := w.messages
|
|
w.messages = nil
|
|
return tmp
|
|
}
|
|
|
|
type logFilter struct {
|
|
logs state.Logs
|
|
timeout time.Time
|
|
id int
|
|
}
|
|
|
|
func (l *logFilter) add(logs ...*state.Log) {
|
|
l.logs = append(l.logs, logs...)
|
|
}
|
|
|
|
func (l *logFilter) get() state.Logs {
|
|
l.timeout = time.Now()
|
|
tmp := l.logs
|
|
l.logs = nil
|
|
return tmp
|
|
}
|