/
transition.go
289 lines (262 loc) · 8.43 KB
/
transition.go
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// Copyright 2020 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
package t8ntool
import (
"encoding/json"
"fmt"
"io/ioutil"
"math/big"
"os"
"path"
"github.com/2cluster/go-ethereum/common"
"github.com/2cluster/go-ethereum/core"
"github.com/2cluster/go-ethereum/core/state"
"github.com/2cluster/go-ethereum/core/types"
"github.com/2cluster/go-ethereum/core/vm"
"github.com/2cluster/go-ethereum/log"
"github.com/2cluster/go-ethereum/params"
"github.com/2cluster/go-ethereum/tests"
"gopkg.in/urfave/cli.v1"
)
const (
ErrorEVM = 2
ErrorVMConfig = 3
ErrorMissingBlockhash = 4
ErrorJson = 10
ErrorIO = 11
stdinSelector = "stdin"
)
type NumberedError struct {
errorCode int
err error
}
func NewError(errorCode int, err error) *NumberedError {
return &NumberedError{errorCode, err}
}
func (n *NumberedError) Error() string {
return fmt.Sprintf("ERROR(%d): %v", n.errorCode, n.err.Error())
}
func (n *NumberedError) Code() int {
return n.errorCode
}
type input struct {
Alloc core.GenesisAlloc `json:"alloc,omitempty"`
Env *stEnv `json:"env,omitempty"`
Txs types.Transactions `json:"txs,omitempty"`
}
func Main(ctx *cli.Context) error {
// Configure the go-ethereum logger
glogger := log.NewGlogHandler(log.StreamHandler(os.Stderr, log.TerminalFormat(false)))
glogger.Verbosity(log.Lvl(ctx.Int(VerbosityFlag.Name)))
log.Root().SetHandler(glogger)
var (
err error
tracer vm.Tracer
baseDir = ""
)
var getTracer func(txIndex int, txHash common.Hash) (vm.Tracer, error)
// If user specified a basedir, make sure it exists
if ctx.IsSet(OutputBasedir.Name) {
if base := ctx.String(OutputBasedir.Name); len(base) > 0 {
err := os.MkdirAll(base, 0755) // //rw-r--r--
if err != nil {
return NewError(ErrorIO, fmt.Errorf("failed creating output basedir: %v", err))
}
baseDir = base
}
}
if ctx.Bool(TraceFlag.Name) {
// Configure the EVM logger
logConfig := &vm.LogConfig{
DisableStack: ctx.Bool(TraceDisableStackFlag.Name),
DisableMemory: ctx.Bool(TraceDisableMemoryFlag.Name),
DisableReturnData: ctx.Bool(TraceDisableReturnDataFlag.Name),
Debug: true,
}
var prevFile *os.File
// This one closes the last file
defer func() {
if prevFile != nil {
prevFile.Close()
}
}()
getTracer = func(txIndex int, txHash common.Hash) (vm.Tracer, error) {
if prevFile != nil {
prevFile.Close()
}
traceFile, err := os.Create(path.Join(baseDir, fmt.Sprintf("trace-%d-%v.jsonl", txIndex, txHash.String())))
if err != nil {
return nil, NewError(ErrorIO, fmt.Errorf("failed creating trace-file: %v", err))
}
prevFile = traceFile
return vm.NewJSONLogger(logConfig, traceFile), nil
}
} else {
getTracer = func(txIndex int, txHash common.Hash) (tracer vm.Tracer, err error) {
return nil, nil
}
}
// We need to load three things: alloc, env and transactions. May be either in
// stdin input or in files.
// Check if anything needs to be read from stdin
var (
prestate Prestate
txs types.Transactions // txs to apply
allocStr = ctx.String(InputAllocFlag.Name)
envStr = ctx.String(InputEnvFlag.Name)
txStr = ctx.String(InputTxsFlag.Name)
inputData = &input{}
)
if allocStr == stdinSelector || envStr == stdinSelector || txStr == stdinSelector {
decoder := json.NewDecoder(os.Stdin)
decoder.Decode(inputData)
}
if allocStr != stdinSelector {
inFile, err := os.Open(allocStr)
if err != nil {
return NewError(ErrorIO, fmt.Errorf("failed reading alloc file: %v", err))
}
defer inFile.Close()
decoder := json.NewDecoder(inFile)
if err := decoder.Decode(&inputData.Alloc); err != nil {
return NewError(ErrorJson, fmt.Errorf("Failed unmarshaling alloc-file: %v", err))
}
}
if envStr != stdinSelector {
inFile, err := os.Open(envStr)
if err != nil {
return NewError(ErrorIO, fmt.Errorf("failed reading env file: %v", err))
}
defer inFile.Close()
decoder := json.NewDecoder(inFile)
var env stEnv
if err := decoder.Decode(&env); err != nil {
return NewError(ErrorJson, fmt.Errorf("Failed unmarshaling env-file: %v", err))
}
inputData.Env = &env
}
if txStr != stdinSelector {
inFile, err := os.Open(txStr)
if err != nil {
return NewError(ErrorIO, fmt.Errorf("failed reading txs file: %v", err))
}
defer inFile.Close()
decoder := json.NewDecoder(inFile)
var txs types.Transactions
if err := decoder.Decode(&txs); err != nil {
return NewError(ErrorJson, fmt.Errorf("Failed unmarshaling txs-file: %v", err))
}
inputData.Txs = txs
}
prestate.Pre = inputData.Alloc
prestate.Env = *inputData.Env
txs = inputData.Txs
// Iterate over all the tests, run them and aggregate the results
vmConfig := vm.Config{
Tracer: tracer,
Debug: (tracer != nil),
}
// Construct the chainconfig
var chainConfig *params.ChainConfig
if cConf, extraEips, err := tests.GetChainConfig(ctx.String(ForknameFlag.Name)); err != nil {
return NewError(ErrorVMConfig, fmt.Errorf("Failed constructing chain configuration: %v", err))
} else {
chainConfig = cConf
vmConfig.ExtraEips = extraEips
}
// Set the chain id
chainConfig.ChainID = big.NewInt(ctx.Int64(ChainIDFlag.Name))
// Run the test and aggregate the result
state, result, err := prestate.Apply(vmConfig, chainConfig, txs, ctx.Int64(RewardFlag.Name), getTracer)
if err != nil {
return err
}
// Dump the excution result
//postAlloc := state.DumpGenesisFormat(false, false, false)
collector := make(Alloc)
state.DumpToCollector(collector, false, false, false, nil, -1)
return dispatchOutput(ctx, baseDir, result, collector)
}
type Alloc map[common.Address]core.GenesisAccount
func (g Alloc) OnRoot(common.Hash) {}
func (g Alloc) OnAccount(addr common.Address, dumpAccount state.DumpAccount) {
balance, _ := new(big.Int).SetString(dumpAccount.Balance, 10)
var storage map[common.Hash]common.Hash
if dumpAccount.Storage != nil {
storage = make(map[common.Hash]common.Hash)
for k, v := range dumpAccount.Storage {
storage[k] = common.HexToHash(v)
}
}
genesisAccount := core.GenesisAccount{
Code: common.FromHex(dumpAccount.Code),
Storage: storage,
Balance: balance,
Nonce: dumpAccount.Nonce,
}
g[addr] = genesisAccount
}
// saveFile marshalls the object to the given file
func saveFile(baseDir, filename string, data interface{}) error {
b, err := json.MarshalIndent(data, "", " ")
if err != nil {
return NewError(ErrorJson, fmt.Errorf("failed marshalling output: %v", err))
}
if err = ioutil.WriteFile(path.Join(baseDir, filename), b, 0644); err != nil {
return NewError(ErrorIO, fmt.Errorf("failed writing output: %v", err))
}
return nil
}
// dispatchOutput writes the output data to either stderr or stdout, or to the specified
// files
func dispatchOutput(ctx *cli.Context, baseDir string, result *ExecutionResult, alloc Alloc) error {
stdOutObject := make(map[string]interface{})
stdErrObject := make(map[string]interface{})
dispatch := func(baseDir, fName, name string, obj interface{}) error {
switch fName {
case "stdout":
stdOutObject[name] = obj
case "stderr":
stdErrObject[name] = obj
default: // save to file
if err := saveFile(baseDir, fName, obj); err != nil {
return err
}
}
return nil
}
if err := dispatch(baseDir, ctx.String(OutputAllocFlag.Name), "alloc", alloc); err != nil {
return err
}
if err := dispatch(baseDir, ctx.String(OutputResultFlag.Name), "result", result); err != nil {
return err
}
if len(stdOutObject) > 0 {
b, err := json.MarshalIndent(stdOutObject, "", " ")
if err != nil {
return NewError(ErrorJson, fmt.Errorf("failed marshalling output: %v", err))
}
os.Stdout.Write(b)
}
if len(stdErrObject) > 0 {
b, err := json.MarshalIndent(stdErrObject, "", " ")
if err != nil {
return NewError(ErrorJson, fmt.Errorf("failed marshalling output: %v", err))
}
os.Stderr.Write(b)
}
return nil
}