cerc-io/plugeth
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Merge branch 'rpcfrontier' into develop

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This commit is contained in:
obscuren 2015-03-19 16:29:32 +01:00
commit 03b8ddd19c
12 changed files with 339 additions and 240 deletions
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20
core/block_processor.go
View File

@ -7,8 +7,8 @@ import (
"sync"
"time"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/pow"
@ -17,10 +17,6 @@ import (
"gopkg.in/fatih/set.v0"
)
type PendingBlockEvent struct {
Block *types.Block
}
var statelogger = logger.NewLogger("BLOCK")
type BlockProcessor struct {
@ -137,7 +133,7 @@ func (self *BlockProcessor) ApplyTransactions(coinbase *state.StateObject, state
block.Header().GasUsed = totalUsedGas
if transientProcess {
go self.eventMux.Post(PendingBlockEvent{block})
go self.eventMux.Post(PendingBlockEvent{block, statedb.Logs()})
}
return receipts, handled, unhandled, erroneous, err
@ -146,25 +142,25 @@ func (self *BlockProcessor) ApplyTransactions(coinbase *state.StateObject, state
// Process block will attempt to process the given block's transactions and applies them
// on top of the block's parent state (given it exists) and will return wether it was
// successful or not.
func (sm *BlockProcessor) Process(block *types.Block) (td *big.Int, err error) {
func (sm *BlockProcessor) Process(block *types.Block) (td *big.Int, logs state.Logs, err error) {
// Processing a blocks may never happen simultaneously
sm.mutex.Lock()
defer sm.mutex.Unlock()
header := block.Header()
if sm.bc.HasBlock(header.Hash()) {
return nil, &KnownBlockError{header.Number, header.Hash()}
return nil, nil, &KnownBlockError{header.Number, header.Hash()}
}
if !sm.bc.HasBlock(header.ParentHash) {
return nil, ParentError(header.ParentHash)
return nil, nil, ParentError(header.ParentHash)
}
parent := sm.bc.GetBlock(header.ParentHash)
return sm.processWithParent(block, parent)
}
func (sm *BlockProcessor) processWithParent(block, parent *types.Block) (td *big.Int, err error) {
func (sm *BlockProcessor) processWithParent(block, parent *types.Block) (td *big.Int, logs state.Logs, err error) {
sm.lastAttemptedBlock = block
// Create a new state based on the parent's root (e.g., create copy)
@ -177,7 +173,7 @@ func (sm *BlockProcessor) processWithParent(block, parent *types.Block) (td *big
// There can be at most two uncles
if len(block.Uncles()) > 2 {
return nil, ValidationError("Block can only contain one uncle (contained %v)", len(block.Uncles()))
return nil, nil, ValidationError("Block can only contain one uncle (contained %v)", len(block.Uncles()))
}
receipts, err := sm.TransitionState(state, parent, block, false)
@ -236,7 +232,7 @@ func (sm *BlockProcessor) processWithParent(block, parent *types.Block) (td *big
chainlogger.Infof("processed block #%d (%x...)\n", header.Number, block.Hash()[0:4])
return td, nil
return td, state.Logs(), nil
}
// Validates the current block. Returns an error if the block was invalid,

4
core/chain_makers.go
View File

@ -4,8 +4,8 @@ import (
"fmt"
"math/big"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/pow"
"github.com/ethereum/go-ethereum/state"
@ -93,7 +93,7 @@ func makeChain(bman *BlockProcessor, parent *types.Block, max int, db common.Dat
blocks := make(types.Blocks, max)
for i := 0; i < max; i++ {
block := makeBlock(bman, parent, i, db, seed)
td, err := bman.processWithParent(block, parent)
td, _, err := bman.processWithParent(block, parent)
if err != nil {
fmt.Println("process with parent failed", err)
panic(err)

10
core/chain_manager.go
View File

@ -6,8 +6,8 @@ import (
"math/big"
"sync"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/rlp"
@ -411,7 +411,7 @@ func (self *ChainManager) InsertChain(chain types.Blocks) error {
for i, block := range chain {
// Call in to the block processor and check for errors. It's likely that if one block fails
// all others will fail too (unless a known block is returned).
td, err := self.processor.Process(block)
td, logs, err := self.processor.Process(block)
if err != nil {
if IsKnownBlockErr(err) {
continue
@ -437,7 +437,7 @@ func (self *ChainManager) InsertChain(chain types.Blocks) error {
if block.Header().Number.Cmp(new(big.Int).Add(cblock.Header().Number, common.Big1)) < 0 {
chainlogger.Infof("Split detected. New head #%v (%x) TD=%v, was #%v (%x) TD=%v\n", block.Header().Number, block.Hash()[:4], td, cblock.Header().Number, cblock.Hash()[:4], self.td)
queue[i] = ChainSplitEvent{block}
queue[i] = ChainSplitEvent{block, logs}
queueEvent.splitCount++
}
@ -456,10 +456,10 @@ func (self *ChainManager) InsertChain(chain types.Blocks) error {
self.setTransState(state.New(block.Root(), self.stateDb))
self.setTxState(state.New(block.Root(), self.stateDb))
queue[i] = ChainEvent{block}
queue[i] = ChainEvent{block, logs}
queueEvent.canonicalCount++
} else {
queue[i] = ChainSideEvent{block}
queue[i] = ChainSideEvent{block, logs}
queueEvent.sideCount++
}
}

25
core/events.go
View File

@ -1,6 +1,9 @@
package core
import "github.com/ethereum/go-ethereum/core/types"
import (
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/state"
)
// TxPreEvent is posted when a transaction enters the transaction pool.
type TxPreEvent struct{ Tx *types.Transaction }
@ -15,11 +18,25 @@ type NewBlockEvent struct{ Block *types.Block }
type NewMinedBlockEvent struct{ Block *types.Block }
// ChainSplit is posted when a new head is detected
type ChainSplitEvent struct{ Block *types.Block }
type ChainSplitEvent struct {
Block *types.Block
Logs state.Logs
}
type ChainEvent struct{ Block *types.Block }
type ChainEvent struct {
Block *types.Block
Logs state.Logs
}
type ChainSideEvent struct{ Block *types.Block }
type ChainSideEvent struct {
Block *types.Block
Logs state.Logs
}
type PendingBlockEvent struct {
Block *types.Block
Logs state.Logs
}
type ChainHeadEvent struct{ Block *types.Block }

4
core/filter.go
View File

@ -33,8 +33,8 @@ type Filter struct {
max int
topics [][][]byte
BlockCallback func(*types.Block)
PendingCallback func(*types.Block)
BlockCallback func(*types.Block, state.Logs)
PendingCallback func(*types.Block, state.Logs)
LogsCallback func(state.Logs)
}

8
core/types/common.go
View File

@ -1,7 +1,11 @@
package types
import "math/big"
import (
"math/big"
"github.com/ethereum/go-ethereum/state"
)
type BlockProcessor interface {
Process(*Block) (*big.Int, error)
Process(*Block) (*big.Int, state.Logs, error)
}

6
event/filter/eth_filter.go
View File

@ -63,7 +63,7 @@ func (self *FilterManager) filterLoop() {
// Subscribe to events
events := self.eventMux.Subscribe(
core.PendingBlockEvent{},
//core.ChainEvent{},
core.ChainEvent{},
state.Logs(nil))
out:
@ -77,7 +77,7 @@ out:
self.filterMu.RLock()
for _, filter := range self.filters {
if filter.BlockCallback != nil {
filter.BlockCallback(event.Block)
filter.BlockCallback(event.Block, event.Logs)
}
}
self.filterMu.RUnlock()
@ -86,7 +86,7 @@ out:
self.filterMu.RLock()
for _, filter := range self.filters {
if filter.PendingCallback != nil {
filter.PendingCallback(event.Block)
filter.PendingCallback(event.Block, event.Logs)
}
}
self.filterMu.RUnlock()

24
rpc/api.go
View File

@ -86,7 +86,7 @@ func (self *EthereumApi) getStateWithNum(num int64) *xeth.State {
}
func (self *EthereumApi) start() {
timer := time.NewTicker(filterTickerTime)
timer := time.NewTicker(2 * time.Second)
done:
for {
select {
@ -94,20 +94,20 @@ done:
self.logMut.Lock()
self.messagesMut.Lock()
for id, filter := range self.logs {
if time.Since(filter.timeout) > 20*time.Second {
if time.Since(filter.timeout) > filterTickerTime {
self.filterManager.UninstallFilter(id)
delete(self.logs, id)
}
}
for id, filter := range self.messages {
if time.Since(filter.timeout) > 20*time.Second {
if time.Since(filter.timeout) > filterTickerTime {
self.xeth().Whisper().Unwatch(id)
delete(self.messages, id)
}
}
self.logMut.Unlock()
self.messagesMut.Unlock()
self.logMut.Unlock()
case <-self.quit:
break done
}
@ -161,7 +161,7 @@ func (self *EthereumApi) NewFilter(args *FilterOptions, reply *interface{}) erro
id = self.filterManager.InstallFilter(filter)
self.logs[id] = &logFilter{timeout: time.Now()}
*reply = i2hex(id)
*reply = common.ToHex(big.NewInt(int64(id)).Bytes())
return nil
}
@ -180,10 +180,13 @@ func (self *EthereumApi) NewFilterString(args *FilterStringArgs, reply *interfac
var id int
filter := core.NewFilter(self.xeth().Backend())
callback := func(block *types.Block) {
callback := func(block *types.Block, logs state.Logs) {
self.logMut.Lock()
defer self.logMut.Unlock()
for _, log := range logs {
self.logs[id].add(log)
}
self.logs[id].add(&state.StateLog{})
}
@ -198,7 +201,7 @@ func (self *EthereumApi) NewFilterString(args *FilterStringArgs, reply *interfac
id = self.filterManager.InstallFilter(filter)
self.logs[id] = &logFilter{timeout: time.Now()}
*reply = i2hex(id)
*reply = common.ToHex(big.NewInt(int64(id)).Bytes())
return nil
}
@ -257,6 +260,11 @@ func (p *EthereumApi) Transact(args *NewTxArgs, reply *interface{}) (err error)
p.register[ags.From] = append(p.register[args.From], args)
}
*/
if err := args.requirements(); err != nil {
return err
}
// TODO: align default values to have the same type, e.g. not depend on
// common.Value conversions later on
if args.Gas.Cmp(big.NewInt(0)) == 0 {
@ -478,7 +486,7 @@ func (p *EthereumApi) GetBlockUncleCountByNumber(blocknum int64) (int64, error)
func (p *EthereumApi) GetRequestReply(req *RpcRequest, reply *interface{}) error {
// Spec at https://github.com/ethereum/wiki/wiki/Generic-JSON-RPC
rpclogger.Debugf("%s %s", req.Method, req.Params)
rpclogger.Infof("%s %s", req.Method, req.Params)
switch req.Method {
case "web3_sha3":
args := new(Sha3Args)

194
rpc/args.go
View File

@ -8,10 +8,18 @@ import (
"github.com/ethereum/go-ethereum/common"
)
func blockNumber(raw json.RawMessage, number *int64) (err error) {
var str string
if err = json.Unmarshal(raw, &str); err != nil {
return NewDecodeParamError(err.Error())
func blockAge(raw interface{}, number *int64) (err error) {
// Parse as integer
num, ok := raw.(float64)
if ok {
*number = int64(num)
return nil
}
// Parse as string/hexstring
str, ok := raw.(string)
if !ok {
return NewDecodeParamError("BlockNumber is not a string")
}
switch str {
@ -22,6 +30,7 @@ func blockNumber(raw json.RawMessage, number *int64) (err error) {
default:
*number = common.String2Big(str).Int64()
}
return nil
}
@ -95,18 +104,51 @@ type NewTxArgs struct {
}
func (args *NewTxArgs) UnmarshalJSON(b []byte) (err error) {
var obj struct{ From, To, Value, Gas, GasPrice, Data string }
if err = UnmarshalRawMessages(b, &obj, &args.BlockNumber); err != nil {
return err
var obj []json.RawMessage
var ext struct{ From, To, Value, Gas, GasPrice, Data string }
// Decode byte slice to array of RawMessages
if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
}
args.From = obj.From
args.To = obj.To
args.Value = common.Big(obj.Value)
args.Gas = common.Big(obj.Gas)
args.GasPrice = common.Big(obj.GasPrice)
args.Data = obj.Data
// Check for sufficient params
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
// Decode 0th RawMessage to temporary struct
if err := json.Unmarshal(obj[0], &ext); err != nil {
return NewDecodeParamError(err.Error())
}
// var ok bool
args.From = ext.From
args.To = ext.To
args.Value = common.String2Big(ext.Value)
args.Gas = common.String2Big(ext.Gas)
args.GasPrice = common.String2Big(ext.GasPrice)
args.Data = ext.Data
// Check for optional BlockNumber param
if len(obj) > 1 {
var raw interface{}
if err = json.Unmarshal(obj[1], &raw); err != nil {
return NewDecodeParamError(err.Error())
}
if err := blockAge(raw, &args.BlockNumber); err != nil {
return err
}
}
return nil
}
func (args *NewTxArgs) requirements() error {
if len(args.From) == 0 {
return NewValidationError("From", "Is required")
}
return nil
}
@ -116,10 +158,27 @@ type GetStorageArgs struct {
}
func (args *GetStorageArgs) UnmarshalJSON(b []byte) (err error) {
if err = UnmarshalRawMessages(b, &args.Address, &args.BlockNumber); err != nil {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
addstr, ok := obj[0].(string)
if !ok {
return NewDecodeParamError("Address is not a string")
}
args.Address = addstr
if len(obj) > 1 {
if err := blockAge(obj[1], &args.BlockNumber); err != nil {
return err
}
}
return nil
}
@ -137,16 +196,32 @@ type GetStorageAtArgs struct {
}
func (args *GetStorageAtArgs) UnmarshalJSON(b []byte) (err error) {
var obj []string
if err = UnmarshalRawMessages(b, &obj, &args.BlockNumber); err != nil {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) < 2 {
return NewInsufficientParamsError(len(obj), 2)
}
args.Address = obj[0]
args.Key = obj[1]
addstr, ok := obj[0].(string)
if !ok {
return NewDecodeParamError("Address is not a string")
}
args.Address = addstr
keystr, ok := obj[1].(string)
if !ok {
return NewDecodeParamError("Key is not a string")
}
args.Key = keystr
if len(obj) > 2 {
if err := blockAge(obj[2], &args.BlockNumber); err != nil {
return err
}
}
return nil
}
@ -168,10 +243,27 @@ type GetTxCountArgs struct {
}
func (args *GetTxCountArgs) UnmarshalJSON(b []byte) (err error) {
if err = UnmarshalRawMessages(b, &args.Address, &args.BlockNumber); err != nil {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
addstr, ok := obj[0].(string)
if !ok {
return NewDecodeParamError("Address is not a string")
}
args.Address = addstr
if len(obj) > 1 {
if err := blockAge(obj[1], &args.BlockNumber); err != nil {
return err
}
}
return nil
}
@ -189,8 +281,7 @@ type GetBalanceArgs struct {
func (args *GetBalanceArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
r := bytes.NewReader(b)
if err := json.NewDecoder(r).Decode(&obj); err != nil {
if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
}
@ -205,17 +296,11 @@ func (args *GetBalanceArgs) UnmarshalJSON(b []byte) (err error) {
args.Address = addstr
if len(obj) > 1 {
if obj[1].(string) == "latest" {
args.BlockNumber = -1
} else {
args.BlockNumber = common.Big(obj[1].(string)).Int64()
if err := blockAge(obj[1], &args.BlockNumber); err != nil {
return err
}
}
// if err = UnmarshalRawMessages(b, &args.Address, &args.BlockNumber); err != nil {
// return NewDecodeParamError(err.Error())
// }
return nil
}
@ -232,10 +317,27 @@ type GetDataArgs struct {
}
func (args *GetDataArgs) UnmarshalJSON(b []byte) (err error) {
if err = UnmarshalRawMessages(b, &args.Address, &args.BlockNumber); err != nil {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
addstr, ok := obj[0].(string)
if !ok {
return NewDecodeParamError("Address is not a string")
}
args.Address = addstr
if len(obj) > 1 {
if err := blockAge(obj[1], &args.BlockNumber); err != nil {
return err
}
}
return nil
}
@ -392,10 +494,6 @@ func (args *FilterOptions) UnmarshalJSON(b []byte) (err error) {
return nil
}
// type FilterChangedArgs struct {
// n int
// }
type DbArgs struct {
Database string
Key string
@ -578,31 +676,3 @@ func (args *WhisperFilterArgs) UnmarshalJSON(b []byte) (err error) {
return nil
}
// func (req *RpcRequest) ToRegisterArgs() (string, error) {
// if len(req.Params) < 1 {
// return "", errArguments
// }
// var args string
// err := json.Unmarshal(req.Params, &args)
// if err != nil {
// return "", err
// }
// return args, nil
// }
// func (req *RpcRequest) ToWatchTxArgs() (string, error) {
// if len(req.Params) < 1 {
// return "", errArguments
// }
// var args string
// err := json.Unmarshal(req.Params, &args)
// if err != nil {
// return "", err
// }
// return args, nil
// }

80
rpc/args_test.go
View File

@ -43,6 +43,30 @@ func TestGetBalanceArgs(t *testing.T) {
}
}
func TestGetBalanceArgsLatest(t *testing.T) {
input := `["0x407d73d8a49eeb85d32cf465507dd71d507100c1", "latest"]`
expected := new(GetBalanceArgs)
expected.Address = "0x407d73d8a49eeb85d32cf465507dd71d507100c1"
expected.BlockNumber = -1
args := new(GetBalanceArgs)
if err := json.Unmarshal([]byte(input), &args); err != nil {
t.Error(err)
}
if err := args.requirements(); err != nil {
t.Error(err)
}
if args.Address != expected.Address {
t.Errorf("Address should be %v but is %v", expected.Address, args.Address)
}
if args.BlockNumber != expected.BlockNumber {
t.Errorf("BlockNumber should be %v but is %v", expected.BlockNumber, args.BlockNumber)
}
}
func TestGetBalanceEmptyArgs(t *testing.T) {
input := `[]`
@ -120,7 +144,8 @@ func TestNewTxArgs(t *testing.T) {
"gas": "0x76c0",
"gasPrice": "0x9184e72a000",
"value": "0x9184e72a000",
"data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"}]`
"data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"},
"0x10"]`
expected := new(NewTxArgs)
expected.From = "0xb60e8dd61c5d32be8058bb8eb970870f07233155"
expected.To = "0xd46e8dd67c5d32be8058bb8eb970870f072445675"
@ -128,6 +153,7 @@ func TestNewTxArgs(t *testing.T) {
expected.GasPrice = big.NewInt(10000000000000)
expected.Value = big.NewInt(10000000000000)
expected.Data = "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"
expected.BlockNumber = big.NewInt(16).Int64()
args := new(NewTxArgs)
if err := json.Unmarshal([]byte(input), &args); err != nil {
@ -157,6 +183,30 @@ func TestNewTxArgs(t *testing.T) {
if expected.Data != args.Data {
t.Errorf("Data shoud be %#v but is %#v", expected.Data, args.Data)
}
if expected.BlockNumber != args.BlockNumber {
t.Errorf("BlockNumber shoud be %#v but is %#v", expected.BlockNumber, args.BlockNumber)
}
}
func TestNewTxArgsBlockInt(t *testing.T) {
input := `[{"from": "0xb60e8dd61c5d32be8058bb8eb970870f07233155"}, 5]`
expected := new(NewTxArgs)
expected.From = "0xb60e8dd61c5d32be8058bb8eb970870f07233155"
expected.BlockNumber = big.NewInt(5).Int64()
args := new(NewTxArgs)
if err := json.Unmarshal([]byte(input), &args); err != nil {
t.Error(err)
}
if expected.From != args.From {
t.Errorf("From shoud be %#v but is %#v", expected.From, args.From)
}
if expected.BlockNumber != args.BlockNumber {
t.Errorf("BlockNumber shoud be %#v but is %#v", expected.BlockNumber, args.BlockNumber)
}
}
func TestNewTxArgsEmpty(t *testing.T) {
@ -169,6 +219,34 @@ func TestNewTxArgsEmpty(t *testing.T) {
}
}
func TestNewTxArgsReqs(t *testing.T) {
args := new(NewTxArgs)
args.From = "0xb60e8dd61c5d32be8058bb8eb970870f07233155"
err := args.requirements()
switch err.(type) {
case nil:
break
default:
t.Errorf("Get %T", err)
}
}
func TestNewTxArgsReqsFromBlank(t *testing.T) {
args := new(NewTxArgs)
args.From = ""
err := args.requirements()
switch err.(type) {
case nil:
t.Error("Expected error but didn't get one")
case *ValidationError:
break
default:
t.Error("Wrong type of error")
}
}
func TestGetStorageArgs(t *testing.T) {
input := `["0x407d73d8a49eeb85d32cf465507dd71d507100c1", "latest"]`
expected := new(GetStorageArgs)

84
rpc/http.go
View File

@ -1,6 +1,9 @@
package rpc
import (
"encoding/json"
"io"
"io/ioutil"
"net/http"
"github.com/ethereum/go-ethereum/logger"
@ -16,54 +19,83 @@ const (
// JSONRPC returns a handler that implements the Ethereum JSON-RPC API.
func JSONRPC(pipe *xeth.XEth, dataDir string) http.Handler {
var json JsonWrapper
api := NewEthereumApi(pipe, dataDir)
return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
// TODO this needs to be configurable
w.Header().Set("Access-Control-Allow-Origin", "*")
rpchttplogger.DebugDetailln("Handling request")
// Limit request size to resist DoS
if req.ContentLength > maxSizeReqLength {
jsonerr := &RpcErrorObject{-32700, "Request too large"}
json.Send(w, &RpcErrorResponse{Jsonrpc: jsonrpcver, Id: nil, Error: jsonerr})
Send(w, &RpcErrorResponse{Jsonrpc: jsonrpcver, Id: nil, Error: jsonerr})
return
}
reqParsed, reqerr := json.ParseRequestBody(req)
switch reqerr.(type) {
case nil:
break
case *DecodeParamError, *InsufficientParamsError, *ValidationError:
jsonerr := &RpcErrorObject{-32602, reqerr.Error()}
json.Send(w, &RpcErrorResponse{Jsonrpc: jsonrpcver, Id: nil, Error: jsonerr})
return
default:
jsonerr := &RpcErrorObject{-32700, "Could not parse request"}
json.Send(w, &RpcErrorResponse{Jsonrpc: jsonrpcver, Id: nil, Error: jsonerr})
// Read request body
defer req.Body.Close()
body, err := ioutil.ReadAll(req.Body)
if err != nil {
jsonerr := &RpcErrorObject{-32700, "Could not read request body"}
Send(w, &RpcErrorResponse{Jsonrpc: jsonrpcver, Id: nil, Error: jsonerr})
}
// Try to parse the request as a single
var reqSingle RpcRequest
if err := json.Unmarshal(body, &reqSingle); err == nil {
response := RpcResponse(api, &reqSingle)
Send(w, &response)
return
}
var response interface{}
reserr := api.GetRequestReply(&reqParsed, &response)
// Try to parse the request to batch
var reqBatch []RpcRequest
if err := json.Unmarshal(body, &reqBatch); err == nil {
// Build response batch
resBatch := make([]*interface{}, len(reqBatch))
for i, request := range reqBatch {
response := RpcResponse(api, &request)
resBatch[i] = response
}
Send(w, resBatch)
return
}
// Not a batch or single request, error
jsonerr := &RpcErrorObject{-32600, "Could not decode request"}
Send(w, &RpcErrorResponse{Jsonrpc: jsonrpcver, Id: nil, Error: jsonerr})
})
}
func RpcResponse(api *EthereumApi, request *RpcRequest) *interface{} {
var reply, response interface{}
reserr := api.GetRequestReply(request, &reply)
switch reserr.(type) {
case nil:
break
response = &RpcSuccessResponse{Jsonrpc: jsonrpcver, Id: request.Id, Result: reply}
case *NotImplementedError:
jsonerr := &RpcErrorObject{-32601, reserr.Error()}
json.Send(w, &RpcErrorResponse{Jsonrpc: jsonrpcver, Id: reqParsed.Id, Error: jsonerr})
return
response = &RpcErrorResponse{Jsonrpc: jsonrpcver, Id: request.Id, Error: jsonerr}
case *DecodeParamError, *InsufficientParamsError, *ValidationError:
jsonerr := &RpcErrorObject{-32602, reserr.Error()}
json.Send(w, &RpcErrorResponse{Jsonrpc: jsonrpcver, Id: reqParsed.Id, Error: jsonerr})
return
response = &RpcErrorResponse{Jsonrpc: jsonrpcver, Id: request.Id, Error: jsonerr}
default:
jsonerr := &RpcErrorObject{-32603, reserr.Error()}
json.Send(w, &RpcErrorResponse{Jsonrpc: jsonrpcver, Id: reqParsed.Id, Error: jsonerr})
return
response = &RpcErrorResponse{Jsonrpc: jsonrpcver, Id: request.Id, Error: jsonerr}
}
rpchttplogger.DebugDetailf("Generated response: %T %s", response, response)
json.Send(w, &RpcSuccessResponse{Jsonrpc: jsonrpcver, Id: reqParsed.Id, Result: response})
})
return &response
}
func Send(writer io.Writer, v interface{}) (n int, err error) {
var payload []byte
payload, err = json.MarshalIndent(v, "", "\t")
if err != nil {
rpclogger.Fatalln("Error marshalling JSON", err)
return 0, err
}
rpclogger.DebugDetailf("Sending payload: %s", payload)
return writer.Write(payload)
}

106
rpc/util.go
View File

@ -17,12 +17,6 @@
package rpc
import (
"encoding/json"
"fmt"
"io"
"math/big"
"net/http"
"reflect"
"time"
"github.com/ethereum/go-ethereum/common"
@ -33,106 +27,6 @@ import (
var rpclogger = logger.NewLogger("RPC")
type JsonWrapper struct{}
// Unmarshal state is a helper method which has the ability to decode messsages
// that use the `defaultBlock` (https://github.com/ethereum/wiki/wiki/JSON-RPC#the-default-block-parameter)
// For example a `call`: [{to: "0x....", data:"0x..."}, "latest"]. The first argument is the transaction
// message and the second one refers to the block height (or state) to which to apply this `call`.
func UnmarshalRawMessages(b []byte, iface interface{}, number *int64) (err error) {
var data []json.RawMessage
if err = json.Unmarshal(b, &data); err != nil && len(data) == 0 {
return NewDecodeParamError(err.Error())
}
// Hrm... Occurs when no params
if len(data) == 0 {
return NewDecodeParamError("No data")
}
// Number index determines the index in the array for a possible block number
numberIndex := 0
value := reflect.ValueOf(iface)
rvalue := reflect.Indirect(value)
switch rvalue.Kind() {
case reflect.Slice:
// This is a bit of a cheat, but `data` is expected to be larger than 2 if iface is a slice
if number != nil {
numberIndex = len(data) - 1
} else {
numberIndex = len(data)
}
slice := reflect.MakeSlice(rvalue.Type(), numberIndex, numberIndex)
for i, raw := range data[0:numberIndex] {
v := slice.Index(i).Interface()
if err = json.Unmarshal(raw, &v); err != nil {
fmt.Println(err, v)
return err
}
slice.Index(i).Set(reflect.ValueOf(v))
}
reflect.Indirect(rvalue).Set(slice) //value.Set(slice)
case reflect.Struct:
fallthrough
default:
if err = json.Unmarshal(data[0], iface); err != nil {
return NewDecodeParamError(err.Error())
}
numberIndex = 1
}
// <0 index means out of bound for block number
if numberIndex >= 0 && len(data) > numberIndex {
if err = blockNumber(data[numberIndex], number); err != nil {
return NewDecodeParamError(err.Error())
}
}
return nil
}
func (self JsonWrapper) Send(writer io.Writer, v interface{}) (n int, err error) {
var payload []byte
payload, err = json.MarshalIndent(v, "", "\t")
if err != nil {
rpclogger.Fatalln("Error marshalling JSON", err)
return 0, err
}
rpclogger.DebugDetailf("Sending payload: %s", payload)
return writer.Write(payload)
}
func (self JsonWrapper) ParseRequestBody(req *http.Request) (RpcRequest, error) {
var reqParsed RpcRequest
// Convert JSON to native types
d := json.NewDecoder(req.Body)
defer req.Body.Close()
err := d.Decode(&reqParsed)
if err != nil {
rpclogger.Errorln("Error decoding JSON: ", err)
return reqParsed, err
}
rpclogger.DebugDetailf("Parsed request: %s", reqParsed)
return reqParsed, nil
}
func i2hex(n int) string {
return common.ToHex(big.NewInt(int64(n)).Bytes())
}
type RpcServer interface {
Start()
Stop()
}
type Log struct {
Address string `json:"address"`
Topic []string `json:"topic"`