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639 lines
20 KiB
639 lines
20 KiB
// Copyright 2015 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// go-ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package api
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import (
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"bytes"
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"encoding/json"
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"math/big"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/eth"
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"github.com/ethereum/go-ethereum/rpc/codec"
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"github.com/ethereum/go-ethereum/rpc/shared"
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"github.com/ethereum/go-ethereum/xeth"
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"gopkg.in/fatih/set.v0"
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)
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const (
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EthApiVersion = "1.0"
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)
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// eth api provider
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// See https://github.com/ethereum/wiki/wiki/JSON-RPC
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type ethApi struct {
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xeth *xeth.XEth
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ethereum *eth.Ethereum
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methods map[string]ethhandler
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codec codec.ApiCoder
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}
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// eth callback handler
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type ethhandler func(*ethApi, *shared.Request) (interface{}, error)
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var (
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ethMapping = map[string]ethhandler{
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"eth_accounts": (*ethApi).Accounts,
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"eth_blockNumber": (*ethApi).BlockNumber,
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"eth_getBalance": (*ethApi).GetBalance,
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"eth_protocolVersion": (*ethApi).ProtocolVersion,
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"eth_coinbase": (*ethApi).Coinbase,
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"eth_mining": (*ethApi).IsMining,
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"eth_gasPrice": (*ethApi).GasPrice,
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"eth_getStorage": (*ethApi).GetStorage,
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"eth_storageAt": (*ethApi).GetStorage,
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"eth_getStorageAt": (*ethApi).GetStorageAt,
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"eth_getTransactionCount": (*ethApi).GetTransactionCount,
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"eth_getBlockTransactionCountByHash": (*ethApi).GetBlockTransactionCountByHash,
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"eth_getBlockTransactionCountByNumber": (*ethApi).GetBlockTransactionCountByNumber,
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"eth_getUncleCountByBlockHash": (*ethApi).GetUncleCountByBlockHash,
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"eth_getUncleCountByBlockNumber": (*ethApi).GetUncleCountByBlockNumber,
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"eth_getData": (*ethApi).GetData,
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"eth_getCode": (*ethApi).GetData,
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"eth_sign": (*ethApi).Sign,
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"eth_sendRawTransaction": (*ethApi).SendRawTransaction,
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"eth_sendTransaction": (*ethApi).SendTransaction,
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"eth_transact": (*ethApi).SendTransaction,
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"eth_estimateGas": (*ethApi).EstimateGas,
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"eth_call": (*ethApi).Call,
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"eth_flush": (*ethApi).Flush,
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"eth_getBlockByHash": (*ethApi).GetBlockByHash,
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"eth_getBlockByNumber": (*ethApi).GetBlockByNumber,
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"eth_getTransactionByHash": (*ethApi).GetTransactionByHash,
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"eth_getTransactionByBlockNumberAndIndex": (*ethApi).GetTransactionByBlockNumberAndIndex,
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"eth_getTransactionByBlockHashAndIndex": (*ethApi).GetTransactionByBlockHashAndIndex,
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"eth_getUncleByBlockHashAndIndex": (*ethApi).GetUncleByBlockHashAndIndex,
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"eth_getUncleByBlockNumberAndIndex": (*ethApi).GetUncleByBlockNumberAndIndex,
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"eth_getCompilers": (*ethApi).GetCompilers,
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"eth_compileSolidity": (*ethApi).CompileSolidity,
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"eth_newFilter": (*ethApi).NewFilter,
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"eth_newBlockFilter": (*ethApi).NewBlockFilter,
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"eth_newPendingTransactionFilter": (*ethApi).NewPendingTransactionFilter,
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"eth_uninstallFilter": (*ethApi).UninstallFilter,
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"eth_getFilterChanges": (*ethApi).GetFilterChanges,
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"eth_getFilterLogs": (*ethApi).GetFilterLogs,
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"eth_getLogs": (*ethApi).GetLogs,
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"eth_hashrate": (*ethApi).Hashrate,
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"eth_getWork": (*ethApi).GetWork,
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"eth_submitWork": (*ethApi).SubmitWork,
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"eth_resend": (*ethApi).Resend,
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"eth_pendingTransactions": (*ethApi).PendingTransactions,
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"eth_getTransactionReceipt": (*ethApi).GetTransactionReceipt,
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}
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)
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// create new ethApi instance
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func NewEthApi(xeth *xeth.XEth, eth *eth.Ethereum, codec codec.Codec) *ethApi {
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return ðApi{xeth, eth, ethMapping, codec.New(nil)}
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}
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// collection with supported methods
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func (self *ethApi) Methods() []string {
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methods := make([]string, len(self.methods))
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i := 0
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for k := range self.methods {
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methods[i] = k
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i++
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}
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return methods
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}
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// Execute given request
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func (self *ethApi) Execute(req *shared.Request) (interface{}, error) {
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if callback, ok := self.methods[req.Method]; ok {
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return callback(self, req)
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}
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return nil, shared.NewNotImplementedError(req.Method)
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}
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func (self *ethApi) Name() string {
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return shared.EthApiName
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}
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func (self *ethApi) ApiVersion() string {
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return EthApiVersion
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}
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func (self *ethApi) Accounts(req *shared.Request) (interface{}, error) {
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return self.xeth.Accounts(), nil
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}
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func (self *ethApi) Hashrate(req *shared.Request) (interface{}, error) {
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return newHexNum(self.xeth.HashRate()), nil
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}
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func (self *ethApi) BlockNumber(req *shared.Request) (interface{}, error) {
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num := self.xeth.CurrentBlock().Number()
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return newHexNum(num.Bytes()), nil
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}
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func (self *ethApi) GetBalance(req *shared.Request) (interface{}, error) {
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args := new(GetBalanceArgs)
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if err := self.codec.Decode(req.Params, &args); err != nil {
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return nil, shared.NewDecodeParamError(err.Error())
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}
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return self.xeth.AtStateNum(args.BlockNumber).BalanceAt(args.Address), nil
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}
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func (self *ethApi) ProtocolVersion(req *shared.Request) (interface{}, error) {
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return self.xeth.EthVersion(), nil
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}
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func (self *ethApi) Coinbase(req *shared.Request) (interface{}, error) {
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return newHexData(self.xeth.Coinbase()), nil
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}
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func (self *ethApi) IsMining(req *shared.Request) (interface{}, error) {
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return self.xeth.IsMining(), nil
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}
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func (self *ethApi) GasPrice(req *shared.Request) (interface{}, error) {
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return newHexNum(self.xeth.DefaultGasPrice().Bytes()), nil
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}
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func (self *ethApi) GetStorage(req *shared.Request) (interface{}, error) {
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args := new(GetStorageArgs)
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if err := self.codec.Decode(req.Params, &args); err != nil {
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return nil, shared.NewDecodeParamError(err.Error())
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}
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return self.xeth.AtStateNum(args.BlockNumber).State().SafeGet(args.Address).Storage(), nil
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}
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func (self *ethApi) GetStorageAt(req *shared.Request) (interface{}, error) {
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args := new(GetStorageAtArgs)
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if err := self.codec.Decode(req.Params, &args); err != nil {
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return nil, shared.NewDecodeParamError(err.Error())
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}
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return self.xeth.AtStateNum(args.BlockNumber).StorageAt(args.Address, args.Key), nil
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}
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func (self *ethApi) GetTransactionCount(req *shared.Request) (interface{}, error) {
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args := new(GetTxCountArgs)
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if err := self.codec.Decode(req.Params, &args); err != nil {
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return nil, shared.NewDecodeParamError(err.Error())
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}
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count := self.xeth.AtStateNum(args.BlockNumber).TxCountAt(args.Address)
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return newHexNum(big.NewInt(int64(count)).Bytes()), nil
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}
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func (self *ethApi) GetBlockTransactionCountByHash(req *shared.Request) (interface{}, error) {
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args := new(HashArgs)
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if err := self.codec.Decode(req.Params, &args); err != nil {
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return nil, shared.NewDecodeParamError(err.Error())
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}
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block := NewBlockRes(self.xeth.EthBlockByHash(args.Hash), false)
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if block == nil {
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return nil, nil
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} else {
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return newHexNum(big.NewInt(int64(len(block.Transactions))).Bytes()), nil
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}
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}
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func (self *ethApi) GetBlockTransactionCountByNumber(req *shared.Request) (interface{}, error) {
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args := new(BlockNumArg)
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if err := self.codec.Decode(req.Params, &args); err != nil {
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return nil, shared.NewDecodeParamError(err.Error())
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}
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block := NewBlockRes(self.xeth.EthBlockByNumber(args.BlockNumber), false)
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if block == nil {
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return nil, nil
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} else {
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return newHexNum(big.NewInt(int64(len(block.Transactions))).Bytes()), nil
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}
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}
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func (self *ethApi) GetUncleCountByBlockHash(req *shared.Request) (interface{}, error) {
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args := new(HashArgs)
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if err := self.codec.Decode(req.Params, &args); err != nil {
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return nil, shared.NewDecodeParamError(err.Error())
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}
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block := self.xeth.EthBlockByHash(args.Hash)
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br := NewBlockRes(block, false)
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if br == nil {
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return nil, nil
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}
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return newHexNum(big.NewInt(int64(len(br.Uncles))).Bytes()), nil
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}
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func (self *ethApi) GetUncleCountByBlockNumber(req *shared.Request) (interface{}, error) {
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args := new(BlockNumArg)
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if err := self.codec.Decode(req.Params, &args); err != nil {
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return nil, shared.NewDecodeParamError(err.Error())
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}
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block := self.xeth.EthBlockByNumber(args.BlockNumber)
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br := NewBlockRes(block, false)
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if br == nil {
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return nil, nil
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}
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return newHexNum(big.NewInt(int64(len(br.Uncles))).Bytes()), nil
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}
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func (self *ethApi) GetData(req *shared.Request) (interface{}, error) {
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args := new(GetDataArgs)
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if err := self.codec.Decode(req.Params, &args); err != nil {
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return nil, shared.NewDecodeParamError(err.Error())
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}
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v := self.xeth.AtStateNum(args.BlockNumber).CodeAtBytes(args.Address)
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return newHexData(v), nil
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}
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func (self *ethApi) Sign(req *shared.Request) (interface{}, error) {
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args := new(NewSigArgs)
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if err := self.codec.Decode(req.Params, &args); err != nil {
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return nil, shared.NewDecodeParamError(err.Error())
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}
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v, err := self.xeth.Sign(args.From, args.Data, false)
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if err != nil {
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return nil, err
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}
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return v, nil
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}
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func (self *ethApi) SendRawTransaction(req *shared.Request) (interface{}, error) {
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args := new(NewDataArgs)
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if err := self.codec.Decode(req.Params, &args); err != nil {
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return nil, shared.NewDecodeParamError(err.Error())
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}
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v, err := self.xeth.PushTx(args.Data)
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if err != nil {
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return nil, err
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}
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return v, nil
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}
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func (self *ethApi) SendTransaction(req *shared.Request) (interface{}, error) {
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args := new(NewTxArgs)
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if err := self.codec.Decode(req.Params, &args); err != nil {
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return nil, shared.NewDecodeParamError(err.Error())
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}
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// nonce may be nil ("guess" mode)
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var nonce string
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if args.Nonce != nil {
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nonce = args.Nonce.String()
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}
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var gas, price string
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if args.Gas != nil {
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gas = args.Gas.String()
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}
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if args.GasPrice != nil {
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price = args.GasPrice.String()
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}
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v, err := self.xeth.Transact(args.From, args.To, nonce, args.Value.String(), gas, price, args.Data)
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if err != nil {
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return nil, err
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}
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return v, nil
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}
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func (self *ethApi) EstimateGas(req *shared.Request) (interface{}, error) {
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_, gas, err := self.doCall(req.Params)
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if err != nil {
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return nil, err
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}
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// TODO unwrap the parent method's ToHex call
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if len(gas) == 0 {
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return newHexNum(0), nil
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} else {
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return newHexNum(gas), nil
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}
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}
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func (self *ethApi) Call(req *shared.Request) (interface{}, error) {
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v, _, err := self.doCall(req.Params)
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if err != nil {
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return nil, err
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}
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// TODO unwrap the parent method's ToHex call
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if v == "0x0" {
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return newHexData([]byte{}), nil
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} else {
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return newHexData(common.FromHex(v)), nil
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}
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}
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func (self *ethApi) Flush(req *shared.Request) (interface{}, error) {
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return nil, shared.NewNotImplementedError(req.Method)
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}
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func (self *ethApi) doCall(params json.RawMessage) (string, string, error) {
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args := new(CallArgs)
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if err := self.codec.Decode(params, &args); err != nil {
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return "", "", err
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}
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return self.xeth.AtStateNum(args.BlockNumber).Call(args.From, args.To, args.Value.String(), args.Gas.String(), args.GasPrice.String(), args.Data)
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}
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func (self *ethApi) GetBlockByHash(req *shared.Request) (interface{}, error) {
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args := new(GetBlockByHashArgs)
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if err := self.codec.Decode(req.Params, &args); err != nil {
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return nil, shared.NewDecodeParamError(err.Error())
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}
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block := self.xeth.EthBlockByHash(args.BlockHash)
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return NewBlockRes(block, args.IncludeTxs), nil
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}
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func (self *ethApi) GetBlockByNumber(req *shared.Request) (interface{}, error) {
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args := new(GetBlockByNumberArgs)
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if err := json.Unmarshal(req.Params, &args); err != nil {
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return nil, shared.NewDecodeParamError(err.Error())
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}
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block := self.xeth.EthBlockByNumber(args.BlockNumber)
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br := NewBlockRes(block, args.IncludeTxs)
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return br, nil
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}
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func (self *ethApi) GetTransactionByHash(req *shared.Request) (interface{}, error) {
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args := new(HashArgs)
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if err := self.codec.Decode(req.Params, &args); err != nil {
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return nil, shared.NewDecodeParamError(err.Error())
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}
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tx, bhash, bnum, txi := self.xeth.EthTransactionByHash(args.Hash)
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if tx != nil {
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v := NewTransactionRes(tx)
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// if the blockhash is 0, assume this is a pending transaction
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if bytes.Compare(bhash.Bytes(), bytes.Repeat([]byte{0}, 32)) != 0 {
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v.BlockHash = newHexData(bhash)
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v.BlockNumber = newHexNum(bnum)
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v.TxIndex = newHexNum(txi)
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}
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return v, nil
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}
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return nil, nil
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}
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func (self *ethApi) GetTransactionByBlockHashAndIndex(req *shared.Request) (interface{}, error) {
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args := new(HashIndexArgs)
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if err := self.codec.Decode(req.Params, &args); err != nil {
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return nil, shared.NewDecodeParamError(err.Error())
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}
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block := self.xeth.EthBlockByHash(args.Hash)
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br := NewBlockRes(block, true)
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if br == nil {
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return nil, nil
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}
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if args.Index >= int64(len(br.Transactions)) || args.Index < 0 {
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return nil, nil
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} else {
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return br.Transactions[args.Index], nil
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}
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}
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func (self *ethApi) GetTransactionByBlockNumberAndIndex(req *shared.Request) (interface{}, error) {
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args := new(BlockNumIndexArgs)
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if err := self.codec.Decode(req.Params, &args); err != nil {
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return nil, shared.NewDecodeParamError(err.Error())
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}
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block := self.xeth.EthBlockByNumber(args.BlockNumber)
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v := NewBlockRes(block, true)
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if v == nil {
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return nil, nil
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}
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if args.Index >= int64(len(v.Transactions)) || args.Index < 0 {
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// return NewValidationError("Index", "does not exist")
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return nil, nil
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}
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return v.Transactions[args.Index], nil
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}
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func (self *ethApi) GetUncleByBlockHashAndIndex(req *shared.Request) (interface{}, error) {
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args := new(HashIndexArgs)
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if err := self.codec.Decode(req.Params, &args); err != nil {
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return nil, shared.NewDecodeParamError(err.Error())
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}
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br := NewBlockRes(self.xeth.EthBlockByHash(args.Hash), false)
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if br == nil {
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return nil, nil
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}
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if args.Index >= int64(len(br.Uncles)) || args.Index < 0 {
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// return NewValidationError("Index", "does not exist")
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return nil, nil
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}
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return br.Uncles[args.Index], nil
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}
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func (self *ethApi) GetUncleByBlockNumberAndIndex(req *shared.Request) (interface{}, error) {
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args := new(BlockNumIndexArgs)
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if err := self.codec.Decode(req.Params, &args); err != nil {
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return nil, shared.NewDecodeParamError(err.Error())
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}
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block := self.xeth.EthBlockByNumber(args.BlockNumber)
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v := NewBlockRes(block, true)
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if v == nil {
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return nil, nil
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}
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if args.Index >= int64(len(v.Uncles)) || args.Index < 0 {
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return nil, nil
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} else {
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return v.Uncles[args.Index], nil
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}
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}
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func (self *ethApi) GetCompilers(req *shared.Request) (interface{}, error) {
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var lang string
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if solc, _ := self.xeth.Solc(); solc != nil {
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lang = "Solidity"
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}
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c := []string{lang}
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return c, nil
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}
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|
func (self *ethApi) CompileSolidity(req *shared.Request) (interface{}, error) {
|
|
solc, _ := self.xeth.Solc()
|
|
if solc == nil {
|
|
return nil, shared.NewNotAvailableError(req.Method, "solc (solidity compiler) not found")
|
|
}
|
|
|
|
args := new(SourceArgs)
|
|
if err := self.codec.Decode(req.Params, &args); err != nil {
|
|
return nil, shared.NewDecodeParamError(err.Error())
|
|
}
|
|
|
|
contracts, err := solc.Compile(args.Source)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return contracts, nil
|
|
}
|
|
|
|
func (self *ethApi) NewFilter(req *shared.Request) (interface{}, error) {
|
|
args := new(BlockFilterArgs)
|
|
if err := self.codec.Decode(req.Params, &args); err != nil {
|
|
return nil, shared.NewDecodeParamError(err.Error())
|
|
}
|
|
|
|
id := self.xeth.NewLogFilter(args.Earliest, args.Latest, args.Skip, args.Max, args.Address, args.Topics)
|
|
return newHexNum(big.NewInt(int64(id)).Bytes()), nil
|
|
}
|
|
|
|
func (self *ethApi) NewBlockFilter(req *shared.Request) (interface{}, error) {
|
|
return newHexNum(self.xeth.NewBlockFilter()), nil
|
|
}
|
|
|
|
func (self *ethApi) NewPendingTransactionFilter(req *shared.Request) (interface{}, error) {
|
|
return newHexNum(self.xeth.NewTransactionFilter()), nil
|
|
}
|
|
|
|
func (self *ethApi) UninstallFilter(req *shared.Request) (interface{}, error) {
|
|
args := new(FilterIdArgs)
|
|
if err := self.codec.Decode(req.Params, &args); err != nil {
|
|
return nil, shared.NewDecodeParamError(err.Error())
|
|
}
|
|
return self.xeth.UninstallFilter(args.Id), nil
|
|
}
|
|
|
|
func (self *ethApi) GetFilterChanges(req *shared.Request) (interface{}, error) {
|
|
args := new(FilterIdArgs)
|
|
if err := self.codec.Decode(req.Params, &args); err != nil {
|
|
return nil, shared.NewDecodeParamError(err.Error())
|
|
}
|
|
|
|
switch self.xeth.GetFilterType(args.Id) {
|
|
case xeth.BlockFilterTy:
|
|
return NewHashesRes(self.xeth.BlockFilterChanged(args.Id)), nil
|
|
case xeth.TransactionFilterTy:
|
|
return NewHashesRes(self.xeth.TransactionFilterChanged(args.Id)), nil
|
|
case xeth.LogFilterTy:
|
|
return NewLogsRes(self.xeth.LogFilterChanged(args.Id)), nil
|
|
default:
|
|
return []string{}, nil // reply empty string slice
|
|
}
|
|
}
|
|
|
|
func (self *ethApi) GetFilterLogs(req *shared.Request) (interface{}, error) {
|
|
args := new(FilterIdArgs)
|
|
if err := self.codec.Decode(req.Params, &args); err != nil {
|
|
return nil, shared.NewDecodeParamError(err.Error())
|
|
}
|
|
|
|
return NewLogsRes(self.xeth.Logs(args.Id)), nil
|
|
}
|
|
|
|
func (self *ethApi) GetLogs(req *shared.Request) (interface{}, error) {
|
|
args := new(BlockFilterArgs)
|
|
if err := self.codec.Decode(req.Params, &args); err != nil {
|
|
return nil, shared.NewDecodeParamError(err.Error())
|
|
}
|
|
return NewLogsRes(self.xeth.AllLogs(args.Earliest, args.Latest, args.Skip, args.Max, args.Address, args.Topics)), nil
|
|
}
|
|
|
|
func (self *ethApi) GetWork(req *shared.Request) (interface{}, error) {
|
|
self.xeth.SetMining(true, 0)
|
|
return self.xeth.RemoteMining().GetWork(), nil
|
|
}
|
|
|
|
func (self *ethApi) SubmitWork(req *shared.Request) (interface{}, error) {
|
|
args := new(SubmitWorkArgs)
|
|
if err := self.codec.Decode(req.Params, &args); err != nil {
|
|
return nil, shared.NewDecodeParamError(err.Error())
|
|
}
|
|
return self.xeth.RemoteMining().SubmitWork(args.Nonce, common.HexToHash(args.Digest), common.HexToHash(args.Header)), nil
|
|
}
|
|
|
|
func (self *ethApi) Resend(req *shared.Request) (interface{}, error) {
|
|
args := new(ResendArgs)
|
|
if err := self.codec.Decode(req.Params, &args); err != nil {
|
|
return nil, shared.NewDecodeParamError(err.Error())
|
|
}
|
|
|
|
ret, err := self.xeth.Transact(args.Tx.From, args.Tx.To, args.Tx.Nonce, args.Tx.Value, args.GasLimit, args.GasPrice, args.Tx.Data)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
self.ethereum.TxPool().RemoveTransactions(types.Transactions{args.Tx.tx})
|
|
|
|
return ret, nil
|
|
}
|
|
|
|
func (self *ethApi) PendingTransactions(req *shared.Request) (interface{}, error) {
|
|
txs := self.ethereum.TxPool().GetTransactions()
|
|
|
|
// grab the accounts from the account manager. This will help with determining which
|
|
// transactions should be returned.
|
|
accounts, err := self.ethereum.AccountManager().Accounts()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Add the accouns to a new set
|
|
accountSet := set.New()
|
|
for _, account := range accounts {
|
|
accountSet.Add(account.Address)
|
|
}
|
|
|
|
var ltxs []*tx
|
|
for _, tx := range txs {
|
|
if from, _ := tx.From(); accountSet.Has(from) {
|
|
ltxs = append(ltxs, newTx(tx))
|
|
}
|
|
}
|
|
|
|
return ltxs, nil
|
|
}
|
|
|
|
func (self *ethApi) GetTransactionReceipt(req *shared.Request) (interface{}, error) {
|
|
args := new(HashArgs)
|
|
if err := self.codec.Decode(req.Params, &args); err != nil {
|
|
return nil, shared.NewDecodeParamError(err.Error())
|
|
}
|
|
|
|
txhash := common.BytesToHash(common.FromHex(args.Hash))
|
|
tx, bhash, bnum, txi := self.xeth.EthTransactionByHash(args.Hash)
|
|
rec := self.xeth.GetTxReceipt(txhash)
|
|
// We could have an error of "not found". Should disambiguate
|
|
// if err != nil {
|
|
// return err, nil
|
|
// }
|
|
if rec != nil && tx != nil {
|
|
v := NewReceiptRes(rec)
|
|
v.BlockHash = newHexData(bhash)
|
|
v.BlockNumber = newHexNum(bnum)
|
|
v.TransactionIndex = newHexNum(txi)
|
|
return v, nil
|
|
}
|
|
|
|
return nil, nil
|
|
}
|
|
|