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|
package api
import (
"fmt"
"github.com/ethereum/ethash"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/rlp"
"github.com/ethereum/go-ethereum/rpc/codec"
"github.com/ethereum/go-ethereum/rpc/shared"
"github.com/ethereum/go-ethereum/xeth"
)
const (
DebugApiVersion = "1.0"
)
var (
// mapping between methods and handlers
DebugMapping = map[string]debughandler{
"debug_dumpBlock": (*debugApi).DumpBlock,
"debug_getBlockRlp": (*debugApi).GetBlockRlp,
"debug_printBlock": (*debugApi).PrintBlock,
"debug_processBlock": (*debugApi).ProcessBlock,
"debug_seedHash": (*debugApi).SeedHash,
"debug_setHead": (*debugApi).SetHead,
}
)
// debug callback handler
type debughandler func(*debugApi, *shared.Request) (interface{}, error)
// admin api provider
type debugApi struct {
xeth *xeth.XEth
ethereum *eth.Ethereum
methods map[string]debughandler
codec codec.ApiCoder
}
// create a new debug api instance
func NewDebugApi(xeth *xeth.XEth, ethereum *eth.Ethereum, coder codec.Codec) *debugApi {
return &debugApi{
xeth: xeth,
ethereum: ethereum,
methods: DebugMapping,
codec: coder.New(nil),
}
}
// collection with supported methods
func (self *debugApi) 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 *debugApi) Execute(req *shared.Request) (interface{}, error) {
if callback, ok := self.methods[req.Method]; ok {
return callback(self, req)
}
return nil, &shared.NotImplementedError{req.Method}
}
func (self *debugApi) Name() string {
return shared.DebugApiName
}
func (self *debugApi) ApiVersion() string {
return DebugApiVersion
}
func (self *debugApi) PrintBlock(req *shared.Request) (interface{}, error) {
args := new(BlockNumArg)
if err := self.codec.Decode(req.Params, &args); err != nil {
return nil, shared.NewDecodeParamError(err.Error())
}
block := self.xeth.EthBlockByNumber(args.BlockNumber)
return fmt.Sprintf("%s", block), nil
}
func (self *debugApi) DumpBlock(req *shared.Request) (interface{}, error) {
args := new(BlockNumArg)
if err := self.codec.Decode(req.Params, &args); err != nil {
return nil, shared.NewDecodeParamError(err.Error())
}
block := self.xeth.EthBlockByNumber(args.BlockNumber)
if block == nil {
return nil, fmt.Errorf("block #%d not found", args.BlockNumber)
}
stateDb := state.New(block.Root(), self.ethereum.StateDb())
if stateDb == nil {
return nil, nil
}
return stateDb.RawDump(), nil
}
func (self *debugApi) GetBlockRlp(req *shared.Request) (interface{}, error) {
args := new(BlockNumArg)
if err := self.codec.Decode(req.Params, &args); err != nil {
return nil, shared.NewDecodeParamError(err.Error())
}
block := self.xeth.EthBlockByNumber(args.BlockNumber)
if block == nil {
return nil, fmt.Errorf("block #%d not found", args.BlockNumber)
}
encoded, err := rlp.EncodeToBytes(block)
return fmt.Sprintf("%x", encoded), err
}
func (self *debugApi) SetHead(req *shared.Request) (interface{}, error) {
args := new(BlockNumArg)
if err := self.codec.Decode(req.Params, &args); err != nil {
return nil, shared.NewDecodeParamError(err.Error())
}
block := self.xeth.EthBlockByNumber(args.BlockNumber)
if block == nil {
return nil, fmt.Errorf("block #%d not found", args.BlockNumber)
}
self.ethereum.ChainManager().SetHead(block)
return nil, nil
}
func (self *debugApi) ProcessBlock(req *shared.Request) (interface{}, error) {
args := new(BlockNumArg)
if err := self.codec.Decode(req.Params, &args); err != nil {
return nil, shared.NewDecodeParamError(err.Error())
}
block := self.xeth.EthBlockByNumber(args.BlockNumber)
if block == nil {
return nil, fmt.Errorf("block #%d not found", args.BlockNumber)
}
old := vm.Debug
defer func() { vm.Debug = old }()
vm.Debug = true
_, err := self.ethereum.BlockProcessor().RetryProcess(block)
if err == nil {
return true, nil
}
return false, err
}
func (self *debugApi) SeedHash(req *shared.Request) (interface{}, error) {
args := new(BlockNumArg)
if err := self.codec.Decode(req.Params, &args); err != nil {
return nil, shared.NewDecodeParamError(err.Error())
}
if hash, err := ethash.GetSeedHash(uint64(args.BlockNumber)); err == nil {
return fmt.Sprintf("0x%x", hash), nil
} else {
return nil, err
}
}
|
