cerc-io/plugeth
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Merge branch 'release/0.9.25'

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This commit is contained in:
obscuren 2015-05-27 02:07:03 +02:00
commit 70867904a0
20 changed files with 363 additions and 244 deletions
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70
cmd/geth/admin.go
View File

@ -88,6 +88,7 @@ func (js *jsre) adminBindings() {
debug.Set("getBlockRlp", js.getBlockRlp)
debug.Set("setHead", js.setHead)
debug.Set("processBlock", js.debugBlock)
debug.Set("seedhash", js.seedHash)
// undocumented temporary
debug.Set("waitForBlocks", js.waitForBlocks)
}
@ -118,6 +119,27 @@ func (js *jsre) getBlock(call otto.FunctionCall) (*types.Block, error) {
return block, nil
}
func (js *jsre) seedHash(call otto.FunctionCall) otto.Value {
if len(call.ArgumentList) > 0 {
if call.Argument(0).IsNumber() {
num, _ := call.Argument(0).ToInteger()
hash, err := ethash.GetSeedHash(uint64(num))
if err != nil {
fmt.Println(err)
return otto.UndefinedValue()
}
v, _ := call.Otto.ToValue(fmt.Sprintf("0x%x", hash))
return v
} else {
fmt.Println("arg not a number")
}
} else {
fmt.Println("requires number argument")
}
return otto.UndefinedValue()
}
func (js *jsre) pendingTransactions(call otto.FunctionCall) otto.Value {
txs := js.ethereum.TxPool().GetTransactions()
@ -144,7 +166,8 @@ func (js *jsre) pendingTransactions(call otto.FunctionCall) otto.Value {
}
}
return js.re.ToVal(ltxs)
v, _ := call.Otto.ToValue(ltxs)
return v
}
func (js *jsre) resend(call otto.FunctionCall) otto.Value {
@ -175,7 +198,8 @@ func (js *jsre) resend(call otto.FunctionCall) otto.Value {
}
js.ethereum.TxPool().RemoveTransactions(types.Transactions{tx.tx})
return js.re.ToVal(ret)
v, _ := call.Otto.ToValue(ret)
return v
}
fmt.Println("first argument must be a transaction")
@ -198,12 +222,13 @@ func (js *jsre) sign(call otto.FunctionCall) otto.Value {
fmt.Println(err)
return otto.UndefinedValue()
}
v, err := js.xeth.Sign(signer, data, false)
signed, err := js.xeth.Sign(signer, data, false)
if err != nil {
fmt.Println(err)
return otto.UndefinedValue()
}
return js.re.ToVal(v)
v, _ := call.Otto.ToValue(signed)
return v
}
func (js *jsre) debugBlock(call otto.FunctionCall) otto.Value {
@ -217,10 +242,11 @@ func (js *jsre) debugBlock(call otto.FunctionCall) otto.Value {
vm.Debug = true
_, err = js.ethereum.BlockProcessor().RetryProcess(block)
if err != nil {
glog.Infoln(err)
fmt.Println(err)
}
vm.Debug = old
fmt.Println("ok")
return otto.UndefinedValue()
}
@ -237,8 +263,8 @@ func (js *jsre) setHead(call otto.FunctionCall) otto.Value {
func (js *jsre) downloadProgress(call otto.FunctionCall) otto.Value {
current, max := js.ethereum.Downloader().Stats()
return js.re.ToVal(fmt.Sprintf("%d/%d", current, max))
v, _ := call.Otto.ToValue(fmt.Sprintf("%d/%d", current, max))
return v
}
func (js *jsre) getBlockRlp(call otto.FunctionCall) otto.Value {
@ -248,7 +274,8 @@ func (js *jsre) getBlockRlp(call otto.FunctionCall) otto.Value {
return otto.UndefinedValue()
}
encoded, _ := rlp.EncodeToBytes(block)
return js.re.ToVal(fmt.Sprintf("%x", encoded))
v, _ := call.Otto.ToValue(fmt.Sprintf("%x", encoded))
return v
}
func (js *jsre) setExtra(call otto.FunctionCall) otto.Value {
@ -278,8 +305,9 @@ func (js *jsre) setGasPrice(call otto.FunctionCall) otto.Value {
return otto.UndefinedValue()
}
func (js *jsre) hashrate(otto.FunctionCall) otto.Value {
return js.re.ToVal(js.ethereum.Miner().HashRate())
func (js *jsre) hashrate(call otto.FunctionCall) otto.Value {
v, _ := call.Otto.ToValue(js.ethereum.Miner().HashRate())
return v
}
func (js *jsre) makeDAG(call otto.FunctionCall) otto.Value {
@ -495,15 +523,18 @@ func (js *jsre) newAccount(call otto.FunctionCall) otto.Value {
fmt.Printf("Could not create the account: %v", err)
return otto.UndefinedValue()
}
return js.re.ToVal(acct.Address.Hex())
v, _ := call.Otto.ToValue(acct.Address.Hex())
return v
}
func (js *jsre) nodeInfo(call otto.FunctionCall) otto.Value {
return js.re.ToVal(js.ethereum.NodeInfo())
v, _ := call.Otto.ToValue(js.ethereum.NodeInfo())
return v
}
func (js *jsre) peers(call otto.FunctionCall) otto.Value {
return js.re.ToVal(js.ethereum.PeersInfo())
v, _ := call.Otto.ToValue(js.ethereum.PeersInfo())
return v
}
func (js *jsre) importChain(call otto.FunctionCall) otto.Value {
@ -562,7 +593,8 @@ func (js *jsre) dumpBlock(call otto.FunctionCall) otto.Value {
statedb := state.New(block.Root(), js.ethereum.StateDb())
dump := statedb.RawDump()
return js.re.ToVal(dump)
v, _ := call.Otto.ToValue(dump)
return v
}
func (js *jsre) waitForBlocks(call otto.FunctionCall) otto.Value {
@ -611,7 +643,8 @@ func (js *jsre) waitForBlocks(call otto.FunctionCall) otto.Value {
return otto.UndefinedValue()
case height = <-wait:
}
return js.re.ToVal(height.Uint64())
v, _ := call.Otto.ToValue(height.Uint64())
return v
}
func (js *jsre) sleep(call otto.FunctionCall) otto.Value {
@ -704,8 +737,8 @@ func (js *jsre) register(call otto.FunctionCall) otto.Value {
return otto.UndefinedValue()
}
return js.re.ToVal(contenthash.Hex())
v, _ := call.Otto.ToValue(contenthash.Hex())
return v
}
func (js *jsre) registerUrl(call otto.FunctionCall) otto.Value {
@ -764,7 +797,8 @@ func (js *jsre) getContractInfo(call otto.FunctionCall) otto.Value {
fmt.Println(err)
return otto.UndefinedValue()
}
return js.re.ToVal(info)
v, _ := call.Otto.ToValue(info)
return v
}
func (js *jsre) startNatSpec(call otto.FunctionCall) otto.Value {

2
cmd/geth/js.go
View File

@ -104,7 +104,7 @@ func newJSRE(ethereum *eth.Ethereum, libPath, corsDomain string, interactive boo
func (js *jsre) apiBindings(f xeth.Frontend) {
xe := xeth.New(js.ethereum, f)
ethApi := rpc.NewEthereumApi(xe)
jeth := rpc.NewJeth(ethApi, js.re.ToVal, js.re)
jeth := rpc.NewJeth(ethApi, js.re)
js.re.Set("jeth", struct{}{})
t, _ := js.re.Get("jeth")

4
cmd/geth/js_test.go
View File

@ -35,6 +35,7 @@ const (
var (
versionRE = regexp.MustCompile(strconv.Quote(`"compilerVersion":"` + solcVersion + `"`))
testNodeKey = crypto.ToECDSA(common.Hex2Bytes("4b50fa71f5c3eeb8fdc452224b2395af2fcc3d125e06c32c82e048c0559db03f"))
testGenesis = `{"` + testAddress[2:] + `": {"balance": "` + testBalance + `"}}`
)
@ -72,6 +73,7 @@ func testJEthRE(t *testing.T) (string, *testjethre, *eth.Ethereum) {
ks := crypto.NewKeyStorePlain(filepath.Join(tmp, "keystore"))
am := accounts.NewManager(ks)
ethereum, err := eth.New(&eth.Config{
NodeKey: testNodeKey,
DataDir: tmp,
AccountManager: am,
MaxPeers: 0,
@ -122,7 +124,7 @@ func TestNodeInfo(t *testing.T) {
}
defer ethereum.Stop()
defer os.RemoveAll(tmp)
want := `{"DiscPort":0,"IP":"0.0.0.0","ListenAddr":"","Name":"test","NodeID":"00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000","NodeUrl":"enode://00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000@0.0.0.0:0","TCPPort":0,"Td":"0"}`
want := `{"DiscPort":0,"IP":"0.0.0.0","ListenAddr":"","Name":"test","NodeID":"4cb2fc32924e94277bf94b5e4c983beedb2eabd5a0bc941db32202735c6625d020ca14a5963d1738af43b6ac0a711d61b1a06de931a499fe2aa0b1a132a902b5","NodeUrl":"enode://4cb2fc32924e94277bf94b5e4c983beedb2eabd5a0bc941db32202735c6625d020ca14a5963d1738af43b6ac0a711d61b1a06de931a499fe2aa0b1a132a902b5@0.0.0.0:0","TCPPort":0,"Td":"131072"}`
checkEvalJSON(t, repl, `admin.nodeInfo()`, want)
}

15
cmd/geth/main.go
View File

@ -48,7 +48,7 @@ import _ "net/http/pprof"
const (
ClientIdentifier = "Geth"
Version = "0.9.24"
Version = "0.9.25"
)
var (
@ -260,6 +260,7 @@ JavaScript API. See https://github.com/ethereum/go-ethereum/wiki/Javascipt-Conso
utils.AutoDAGFlag,
utils.NATFlag,
utils.NatspecEnabledFlag,
utils.NoDiscoverFlag,
utils.NodeKeyFileFlag,
utils.NodeKeyHexFlag,
utils.RPCEnabledFlag,
@ -532,9 +533,9 @@ func importchain(ctx *cli.Context) {
}
// force database flush
ethereum.BlockDb().Close()
ethereum.StateDb().Close()
ethereum.ExtraDb().Close()
ethereum.BlockDb().Flush()
ethereum.StateDb().Flush()
ethereum.ExtraDb().Flush()
fmt.Printf("Import done in %v", time.Since(start))
@ -629,9 +630,9 @@ func upgradeDb(ctx *cli.Context) {
}
// force database flush
ethereum.BlockDb().Close()
ethereum.StateDb().Close()
ethereum.ExtraDb().Close()
ethereum.BlockDb().Flush()
ethereum.StateDb().Flush()
ethereum.ExtraDb().Flush()
os.Remove(exportFile)

6
cmd/utils/flags.go
View File

@ -235,6 +235,10 @@ var (
Usage: "NAT port mapping mechanism (any|none|upnp|pmp|extip:<IP>)",
Value: "any",
}
NoDiscoverFlag = cli.BoolFlag{
Name: "nodiscover",
Usage: "Disables the peer discovery mechanism (manual peer addition)",
}
WhisperEnabledFlag = cli.BoolFlag{
Name: "shh",
Usage: "Enable whisper",
@ -312,6 +316,7 @@ func MakeEthConfig(clientID, version string, ctx *cli.Context) *eth.Config {
Port: ctx.GlobalString(ListenPortFlag.Name),
NAT: GetNAT(ctx),
NatSpec: ctx.GlobalBool(NatspecEnabledFlag.Name),
Discovery: !ctx.GlobalBool(NoDiscoverFlag.Name),
NodeKey: GetNodeKey(ctx),
Shh: ctx.GlobalBool(WhisperEnabledFlag.Name),
Dial: true,
@ -320,7 +325,6 @@ func MakeEthConfig(clientID, version string, ctx *cli.Context) *eth.Config {
SolcPath: ctx.GlobalString(SolcPathFlag.Name),
AutoDAG: ctx.GlobalBool(AutoDAGFlag.Name) || ctx.GlobalBool(MiningEnabledFlag.Name),
}
}
func GetChain(ctx *cli.Context) (*core.ChainManager, common.Database, common.Database) {

2
common/compiler/solidity.go
View File

@ -34,6 +34,8 @@ var (
"file", //
"--natspec-dev", // Request to output the contract's Natspec developer documentation.
"file",
"--add-std",
"1",
}
)

7
core/block_processor.go
View File

@ -21,7 +21,7 @@ import (
const (
// must be bumped when consensus algorithm is changed, this forces the upgradedb
// command to be run (forces the blocks to be imported again using the new algorithm)
BlockChainVersion = 2
BlockChainVersion = 3
)
var receiptsPre = []byte("receipts-")
@ -159,6 +159,9 @@ func (sm *BlockProcessor) RetryProcess(block *types.Block) (logs state.Logs, err
return nil, ParentError(header.ParentHash)
}
parent := sm.bc.GetBlock(header.ParentHash)
if !sm.Pow.Verify(block) {
return nil, ValidationError("Block's nonce is invalid (= %x)", block.Nonce)
}
return sm.processWithParent(block, parent)
}
@ -299,7 +302,7 @@ func (sm *BlockProcessor) ValidateHeader(block, parent *types.Header, checkPow b
a := new(big.Int).Sub(block.GasLimit, parent.GasLimit)
a.Abs(a)
b := new(big.Int).Div(parent.GasLimit, params.GasLimitBoundDivisor)
if !(a.Cmp(b) < 0) || (block.GasLimit.Cmp(params.MinGasLimit) == -1) {
if !(a.Cmp(b) <= 0) || (block.GasLimit.Cmp(params.MinGasLimit) == -1) {
return fmt.Errorf("GasLimit check failed for block %v (%v > %v)", block.GasLimit, a, b)
}

2
core/chain_manager.go
View File

@ -750,7 +750,7 @@ out:
func blockErr(block *types.Block, err error) {
h := block.Header()
glog.V(logger.Error).Infof("INVALID block #%v (%x)\n", h.Number, h.Hash().Bytes())
glog.V(logger.Error).Infof("Bad block #%v (%x)\n", h.Number, h.Hash().Bytes())
glog.V(logger.Error).Infoln(err)
glog.V(logger.Debug).Infoln(block)
}

5
core/transaction_pool.go
View File

@ -25,6 +25,7 @@ var (
ErrInsufficientFunds = errors.New("Insufficient funds for gas * price + value")
ErrIntrinsicGas = errors.New("Intrinsic gas too low")
ErrGasLimit = errors.New("Exceeds block gas limit")
ErrNegativeValue = errors.New("Negative value")
)
const txPoolQueueSize = 50
@ -125,6 +126,10 @@ func (pool *TxPool) ValidateTransaction(tx *types.Transaction) error {
return ErrGasLimit
}
if tx.Amount.Cmp(common.Big0) < 0 {
return ErrNegativeValue
}
total := new(big.Int).Mul(tx.Price, tx.GasLimit)
total.Add(total, tx.Value())
if pool.currentState().GetBalance(from).Cmp(total) < 0 {

14
core/transaction_pool_test.go
View File

@ -138,3 +138,17 @@ func TestRemoveTx(t *testing.T) {
t.Error("expected txs to be 0, got", len(pool.txs))
}
}
func TestNegativeValue(t *testing.T) {
pool, key := setupTxPool()
tx := transaction()
tx.Value().Set(big.NewInt(-1))
tx.SignECDSA(key)
from, _ := tx.From()
pool.currentState().AddBalance(from, big.NewInt(1))
err := pool.Add(tx)
if err != ErrNegativeValue {
t.Error("expected", ErrNegativeValue, "got", err)
}
}

12
eth/backend.go
View File

@ -72,6 +72,7 @@ type Config struct {
MaxPeers int
MaxPendingPeers int
Discovery bool
Port string
// Space-separated list of discovery node URLs
@ -311,6 +312,7 @@ func New(config *Config) (*Ethereum, error) {
Name: config.Name,
MaxPeers: config.MaxPeers,
MaxPendingPeers: config.MaxPendingPeers,
Discovery: config.Discovery,
Protocols: protocols,
NAT: config.NAT,
NoDial: !config.Dial,
@ -449,14 +451,10 @@ func (s *Ethereum) Start() error {
ClientString: s.net.Name,
ProtocolVersion: ProtocolVersion,
})
if s.net.MaxPeers > 0 {
err := s.net.Start()
if err != nil {
return err
}
err := s.net.Start()
if err != nil {
return err
}
// periodically flush databases
go s.syncDatabases()

2
eth/downloader/downloader.go
View File

@ -415,7 +415,7 @@ out:
peer.Demote()
break
}
if glog.V(logger.Debug) {
if glog.V(logger.Debug) && len(blockPack.blocks) > 0 {
glog.Infof("Added %d blocks from: %s\n", len(blockPack.blocks), blockPack.peerId)
}
// Promote the peer and update it's idle state

1
eth/sync.go
View File

@ -70,7 +70,6 @@ func (pm *ProtocolManager) processBlocks() error {
// Try to inset the blocks, drop the originating peer if there's an error
index, err := pm.chainman.InsertChain(raw)
if err != nil {
glog.V(logger.Warn).Infof("Block insertion failed: %v", err)
pm.removePeer(blocks[index].OriginPeer)
pm.downloader.Cancel()
return err

239
jsre/jsre.go
View File

@ -19,9 +19,7 @@ It provides some helper functions to
- bind native go objects
*/
type JSRE struct {
assetPath string
vm *otto.Otto
assetPath string
evalQueue chan *evalReq
stopEventLoop chan bool
loopWg sync.WaitGroup
@ -35,68 +33,37 @@ type jsTimer struct {
call otto.FunctionCall
}
// evalResult is a structure to store the result of any serialized vm execution
type evalResult struct {
result otto.Value
err error
}
// evalReq is a serialized vm execution request put in evalQueue and processed by runEventLoop
// evalReq is a serialized vm execution request processed by runEventLoop.
type evalReq struct {
fn func(res *evalResult)
fn func(vm *otto.Otto)
done chan bool
res evalResult
}
// runtime must be stopped with Stop() after use and cannot be used after stopping
func New(assetPath string) *JSRE {
re := &JSRE{
assetPath: assetPath,
vm: otto.New(),
assetPath: assetPath,
evalQueue: make(chan *evalReq),
stopEventLoop: make(chan bool),
}
// load prettyprint func definition
re.vm.Run(pp_js)
re.vm.Set("loadScript", re.loadScript)
re.evalQueue = make(chan *evalReq)
re.stopEventLoop = make(chan bool)
re.loopWg.Add(1)
go re.runEventLoop()
re.Compile("pp.js", pp_js) // load prettyprint func definition
re.Set("loadScript", re.loadScript)
return re
}
// this function runs a piece of JS code either in a serialized way (when useEQ is true) or instantly, circumventing the evalQueue
func (self *JSRE) run(src interface{}, useEQ bool) (value otto.Value, err error) {
if useEQ {
done := make(chan bool)
req := &evalReq{
fn: func(res *evalResult) {
res.result, res.err = self.vm.Run(src)
},
done: done,
}
self.evalQueue <- req
<-done
return req.res.result, req.res.err
} else {
return self.vm.Run(src)
}
}
// This function runs the main event loop from a goroutine that is started
// when JSRE is created. Use Stop() before exiting to properly stop it.
// The event loop processes vm access requests from the evalQueue in a
// serialized way and calls timer callback functions at the appropriate time.
/*
This function runs the main event loop from a goroutine that is started
when JSRE is created. Use Stop() before exiting to properly stop it.
The event loop processes vm access requests from the evalQueue in a
serialized way and calls timer callback functions at the appropriate time.
Exported functions always access the vm through the event queue. You can
call the functions of the otto vm directly to circumvent the queue. These
functions should be used if and only if running a routine that was already
called from JS through an RPC call.
*/
// Exported functions always access the vm through the event queue. You can
// call the functions of the otto vm directly to circumvent the queue. These
// functions should be used if and only if running a routine that was already
// called from JS through an RPC call.
func (self *JSRE) runEventLoop() {
vm := otto.New()
registry := map[*jsTimer]*jsTimer{}
ready := make(chan *jsTimer)
@ -143,10 +110,10 @@ func (self *JSRE) runEventLoop() {
}
return otto.UndefinedValue()
}
self.vm.Set("setTimeout", setTimeout)
self.vm.Set("setInterval", setInterval)
self.vm.Set("clearTimeout", clearTimeout)
self.vm.Set("clearInterval", clearTimeout)
vm.Set("setTimeout", setTimeout)
vm.Set("setInterval", setInterval)
vm.Set("clearTimeout", clearTimeout)
vm.Set("clearInterval", clearTimeout)
var waitForCallbacks bool
@ -166,8 +133,7 @@ loop:
arguments = make([]interface{}, 1)
}
arguments[0] = timer.call.ArgumentList[0]
_, err := self.vm.Call(`Function.call.call`, nil, arguments...)
_, err := vm.Call(`Function.call.call`, nil, arguments...)
if err != nil {
fmt.Println("js error:", err, arguments)
}
@ -179,10 +145,10 @@ loop:
break loop
}
}
case evalReq := <-self.evalQueue:
case req := <-self.evalQueue:
// run the code, send the result back
evalReq.fn(&evalReq.res)
close(evalReq.done)
req.fn(vm)
close(req.done)
if waitForCallbacks && (len(registry) == 0) {
break loop
}
@ -201,6 +167,14 @@ loop:
self.loopWg.Done()
}
// do schedules the given function on the event loop.
func (self *JSRE) do(fn func(*otto.Otto)) {
done := make(chan bool)
req := &evalReq{fn, done}
self.evalQueue <- req
<-done
}
// stops the event loop before exit, optionally waits for all timers to expire
func (self *JSRE) Stop(waitForCallbacks bool) {
self.stopEventLoop <- waitForCallbacks
@ -210,119 +184,78 @@ func (self *JSRE) Stop(waitForCallbacks bool) {
// Exec(file) loads and runs the contents of a file
// if a relative path is given, the jsre's assetPath is used
func (self *JSRE) Exec(file string) error {
return self.exec(common.AbsolutePath(self.assetPath, file), true)
}
// circumvents the eval queue, see runEventLoop
func (self *JSRE) execWithoutEQ(file string) error {
return self.exec(common.AbsolutePath(self.assetPath, file), false)
}
func (self *JSRE) exec(path string, useEQ bool) error {
code, err := ioutil.ReadFile(path)
code, err := ioutil.ReadFile(common.AbsolutePath(self.assetPath, file))
if err != nil {
return err
}
_, err = self.run(code, useEQ)
self.do(func(vm *otto.Otto) { _, err = vm.Run(code) })
return err
}
// assigns value v to a variable in the JS environment
func (self *JSRE) Bind(name string, v interface{}) (err error) {
self.Set(name, v)
return
// Bind assigns value v to a variable in the JS environment
// This method is deprecated, use Set.
func (self *JSRE) Bind(name string, v interface{}) error {
return self.Set(name, v)
}
// runs a piece of JS code
func (self *JSRE) Run(code string) (otto.Value, error) {
return self.run(code, true)
// Run runs a piece of JS code.
func (self *JSRE) Run(code string) (v otto.Value, err error) {
self.do(func(vm *otto.Otto) { v, err = vm.Run(code) })
return v, err
}
// returns the value of a variable in the JS environment
func (self *JSRE) Get(ns string) (otto.Value, error) {
done := make(chan bool)
req := &evalReq{
fn: func(res *evalResult) {
res.result, res.err = self.vm.Get(ns)
},
done: done,
}
self.evalQueue <- req
<-done
return req.res.result, req.res.err
// Get returns the value of a variable in the JS environment.
func (self *JSRE) Get(ns string) (v otto.Value, err error) {
self.do(func(vm *otto.Otto) { v, err = vm.Get(ns) })
return v, err
}
// assigns value v to a variable in the JS environment
func (self *JSRE) Set(ns string, v interface{}) error {
done := make(chan bool)
req := &evalReq{
fn: func(res *evalResult) {
res.err = self.vm.Set(ns, v)
},
done: done,
}
self.evalQueue <- req
<-done
return req.res.err
// Set assigns value v to a variable in the JS environment.
func (self *JSRE) Set(ns string, v interface{}) (err error) {
self.do(func(vm *otto.Otto) { err = vm.Set(ns, v) })
return err
}
/*
Executes a JS script from inside the currently executing JS code.
Should only be called from inside an RPC routine.
*/
// loadScript executes a JS script from inside the currently executing JS code.
func (self *JSRE) loadScript(call otto.FunctionCall) otto.Value {
file, err := call.Argument(0).ToString()
if err != nil {
// TODO: throw exception
return otto.FalseValue()
}
if err := self.execWithoutEQ(file); err != nil { // loadScript is only called from inside js
file = common.AbsolutePath(self.assetPath, file)
source, err := ioutil.ReadFile(file)
if err != nil {
// TODO: throw exception
return otto.FalseValue()
}
if _, err := compileAndRun(call.Otto, file, source); err != nil {
// TODO: throw exception
fmt.Println("err:", err)
return otto.FalseValue()
}
// TODO: return evaluation result
return otto.TrueValue()
}
// uses the "prettyPrint" JS function to format a value
// PrettyPrint writes v to standard output.
func (self *JSRE) PrettyPrint(v interface{}) (val otto.Value, err error) {
var method otto.Value
v, err = self.ToValue(v)
if err != nil {
return
}
method, err = self.vm.Get("prettyPrint")
if err != nil {
return
}
return method.Call(method, v)
self.do(func(vm *otto.Otto) {
val, err = vm.ToValue(v)
if err != nil {
return
}
method, err = vm.Get("prettyPrint")
if err != nil {
return
}
val, err = method.Call(method, val)
})
return val, err
}
// creates an otto value from a go type (serialized version)
func (self *JSRE) ToValue(v interface{}) (otto.Value, error) {
done := make(chan bool)
req := &evalReq{
fn: func(res *evalResult) {
res.result, res.err = self.vm.ToValue(v)
},
done: done,
}
self.evalQueue <- req
<-done
return req.res.result, req.res.err
}
// creates an otto value from a go type (non-serialized version)
func (self *JSRE) ToVal(v interface{}) otto.Value {
result, err := self.vm.ToValue(v)
if err != nil {
fmt.Println("Value unknown:", err)
return otto.UndefinedValue()
}
return result
}
// evaluates JS function and returns result in a pretty printed string format
// Eval evaluates JS function and returns result in a pretty printed string format.
func (self *JSRE) Eval(code string) (s string, err error) {
var val otto.Value
val, err = self.Run(code)
@ -336,12 +269,16 @@ func (self *JSRE) Eval(code string) (s string, err error) {
return fmt.Sprintf("%v", val), nil
}
// compiles and then runs a piece of JS code
func (self *JSRE) Compile(fn string, src interface{}) error {
script, err := self.vm.Compile(fn, src)
if err != nil {
return err
}
self.run(script, true)
return nil
// Compile compiles and then runs a piece of JS code.
func (self *JSRE) Compile(filename string, src interface{}) (err error) {
self.do(func(vm *otto.Otto) { _, err = compileAndRun(vm, filename, src) })
return err
}
func compileAndRun(vm *otto.Otto, filename string, src interface{}) (otto.Value, error) {
script, err := vm.Compile(filename, src)
if err != nil {
return otto.Value{}, err
}
return vm.Run(script)
}

12
jsre/jsre_test.go
View File

@ -1,16 +1,15 @@
package jsre
import (
"github.com/robertkrimen/otto"
"io/ioutil"
"os"
"testing"
"time"
"github.com/robertkrimen/otto"
)
type testNativeObjectBinding struct {
toVal func(interface{}) otto.Value
}
type testNativeObjectBinding struct{}
type msg struct {
Msg string
@ -21,7 +20,8 @@ func (no *testNativeObjectBinding) TestMethod(call otto.FunctionCall) otto.Value
if err != nil {
return otto.UndefinedValue()
}
return no.toVal(&msg{m})
v, _ := call.Otto.ToValue(&msg{m})
return v
}
func TestExec(t *testing.T) {
@ -74,7 +74,7 @@ func TestNatto(t *testing.T) {
func TestBind(t *testing.T) {
jsre := New("/tmp")
jsre.Bind("no", &testNativeObjectBinding{jsre.ToVal})
jsre.Bind("no", &testNativeObjectBinding{})
val, err := jsre.Run(`no.TestMethod("testMsg")`)
if err != nil {

17
p2p/discover/database.go
View File

@ -44,9 +44,10 @@ var (
nodeDBVersionKey = []byte("version") // Version of the database to flush if changes
nodeDBItemPrefix = []byte("n:") // Identifier to prefix node entries with
nodeDBDiscoverRoot = ":discover"
nodeDBDiscoverPing = nodeDBDiscoverRoot + ":lastping"
nodeDBDiscoverPong = nodeDBDiscoverRoot + ":lastpong"
nodeDBDiscoverRoot = ":discover"
nodeDBDiscoverPing = nodeDBDiscoverRoot + ":lastping"
nodeDBDiscoverPong = nodeDBDiscoverRoot + ":lastpong"
nodeDBDiscoverFindFails = nodeDBDiscoverRoot + ":findfail"
)
// newNodeDB creates a new node database for storing and retrieving infos about
@ -275,6 +276,16 @@ func (db *nodeDB) updateLastPong(id NodeID, instance time.Time) error {
return db.storeInt64(makeKey(id, nodeDBDiscoverPong), instance.Unix())
}
// findFails retrieves the number of findnode failures since bonding.
func (db *nodeDB) findFails(id NodeID) int {
return int(db.fetchInt64(makeKey(id, nodeDBDiscoverFindFails)))
}
// updateFindFails updates the number of findnode failures since bonding.
func (db *nodeDB) updateFindFails(id NodeID, fails int) error {
return db.storeInt64(makeKey(id, nodeDBDiscoverFindFails), int64(fails))
}
// querySeeds retrieves a batch of nodes to be used as potential seed servers
// during bootstrapping the node into the network.
//

11
p2p/discover/database_test.go
View File

@ -93,6 +93,7 @@ func TestNodeDBFetchStore(t *testing.T) {
30303,
)
inst := time.Now()
num := 314
db, _ := newNodeDB("", Version, NodeID{})
defer db.close()
@ -117,6 +118,16 @@ func TestNodeDBFetchStore(t *testing.T) {
if stored := db.lastPong(node.ID); stored.Unix() != inst.Unix() {
t.Errorf("pong: value mismatch: have %v, want %v", stored, inst)
}
// Check fetch/store operations on a node findnode-failure object
if stored := db.findFails(node.ID); stored != 0 {
t.Errorf("find-node fails: non-existing object: %v", stored)
}
if err := db.updateFindFails(node.ID, num); err != nil {
t.Errorf("find-node fails: failed to update: %v", err)
}
if stored := db.findFails(node.ID); stored != num {
t.Errorf("find-node fails: value mismatch: have %v, want %v", stored, num)
}
// Check fetch/store operations on an actual node object
if stored := db.node(node.ID); stored != nil {
t.Errorf("node: non-existing object: %v", stored)

131
p2p/discover/table.go
View File

@ -27,6 +27,7 @@ const (
nBuckets = hashBits + 1 // Number of buckets
maxBondingPingPongs = 16
maxFindnodeFailures = 5
)
type Table struct {
@ -190,6 +191,12 @@ func (tab *Table) Lookup(targetID NodeID) []*Node {
result := tab.closest(target, bucketSize)
tab.mutex.Unlock()
// If the result set is empty, all nodes were dropped, refresh
if len(result.entries) == 0 {
tab.refresh()
return nil
}
for {
// ask the alpha closest nodes that we haven't asked yet
for i := 0; i < len(result.entries) && pendingQueries < alpha; i++ {
@ -198,7 +205,19 @@ func (tab *Table) Lookup(targetID NodeID) []*Node {
asked[n.ID] = true
pendingQueries++
go func() {
r, _ := tab.net.findnode(n.ID, n.addr(), targetID)
// Find potential neighbors to bond with
r, err := tab.net.findnode(n.ID, n.addr(), targetID)
if err != nil {
// Bump the failure counter to detect and evacuate non-bonded entries
fails := tab.db.findFails(n.ID) + 1
tab.db.updateFindFails(n.ID, fails)
glog.V(logger.Detail).Infof("Bumping failures for %x: %d", n.ID[:8], fails)
if fails >= maxFindnodeFailures {
glog.V(logger.Detail).Infof("Evacuating node %x: %d findnode failures", n.ID[:8], fails)
tab.del(n)
}
}
reply <- tab.bondall(r)
}()
}
@ -219,30 +238,53 @@ func (tab *Table) Lookup(targetID NodeID) []*Node {
return result.entries
}
// refresh performs a lookup for a random target to keep buckets full.
// refresh performs a lookup for a random target to keep buckets full, or seeds
// the table if it is empty (initial bootstrap or discarded faulty peers).
func (tab *Table) refresh() {
// The Kademlia paper specifies that the bucket refresh should
// perform a refresh in the least recently used bucket. We cannot
// adhere to this because the findnode target is a 512bit value
// (not hash-sized) and it is not easily possible to generate a
// sha3 preimage that falls into a chosen bucket.
//
// We perform a lookup with a random target instead.
var target NodeID
rand.Read(target[:])
result := tab.Lookup(target)
if len(result) == 0 {
seed := true
// If the discovery table is empty, seed with previously known nodes
tab.mutex.Lock()
for _, bucket := range tab.buckets {
if len(bucket.entries) > 0 {
seed = false
break
}
}
tab.mutex.Unlock()
// If the table is not empty, try to refresh using the live entries
if !seed {
// The Kademlia paper specifies that the bucket refresh should
// perform a refresh in the least recently used bucket. We cannot
// adhere to this because the findnode target is a 512bit value
// (not hash-sized) and it is not easily possible to generate a
// sha3 preimage that falls into a chosen bucket.
//
// We perform a lookup with a random target instead.
var target NodeID
rand.Read(target[:])
result := tab.Lookup(target)
if len(result) == 0 {
// Lookup failed, seed after all
seed = true
}
}
if seed {
// Pick a batch of previously know seeds to lookup with
seeds := tab.db.querySeeds(10)
for _, seed := range seeds {
glog.V(logger.Debug).Infoln("Seeding network with", seed)
}
// Bootstrap the table with a self lookup
all := tab.bondall(append(tab.nursery, seeds...))
tab.mutex.Lock()
tab.add(all)
tab.mutex.Unlock()
tab.Lookup(tab.self.ID)
nodes := append(tab.nursery, seeds...)
// Bond with all the seed nodes (will pingpong only if failed recently)
bonded := tab.bondall(nodes)
if len(bonded) > 0 {
tab.Lookup(tab.self.ID)
}
// TODO: the Kademlia paper says that we're supposed to perform
// random lookups in all buckets further away than our closest neighbor.
}
@ -305,8 +347,16 @@ func (tab *Table) bondall(nodes []*Node) (result []*Node) {
// If pinged is true, the remote node has just pinged us and one half
// of the process can be skipped.
func (tab *Table) bond(pinged bool, id NodeID, addr *net.UDPAddr, tcpPort uint16) (*Node, error) {
var n *Node
if n = tab.db.node(id); n == nil {
// Retrieve a previously known node and any recent findnode failures
node, fails := tab.db.node(id), 0
if node != nil {
fails = tab.db.findFails(id)
}
// If the node is unknown (non-bonded) or failed (remotely unknown), bond from scratch
var result error
if node == nil || fails > 0 {
glog.V(logger.Detail).Infof("Bonding %x: known=%v, fails=%v", id[:8], node != nil, fails)
tab.bondmu.Lock()
w := tab.bonding[id]
if w != nil {
@ -325,18 +375,24 @@ func (tab *Table) bond(pinged bool, id NodeID, addr *net.UDPAddr, tcpPort uint16
delete(tab.bonding, id)
tab.bondmu.Unlock()
}
n = w.n
if w.err != nil {
return nil, w.err
// Retrieve the bonding results
result = w.err
if result == nil {
node = w.n
}
}
tab.mutex.Lock()
defer tab.mutex.Unlock()
b := tab.buckets[logdist(tab.self.sha, n.sha)]
if !b.bump(n) {
tab.pingreplace(n, b)
// Even if bonding temporarily failed, give the node a chance
if node != nil {
tab.mutex.Lock()
defer tab.mutex.Unlock()
b := tab.buckets[logdist(tab.self.sha, node.sha)]
if !b.bump(node) {
tab.pingreplace(node, b)
}
tab.db.updateFindFails(id, 0)
}
return n, nil
return node, result
}
func (tab *Table) pingpong(w *bondproc, pinged bool, id NodeID, addr *net.UDPAddr, tcpPort uint16) {
@ -414,6 +470,21 @@ outer:
}
}
// del removes an entry from the node table (used to evacuate failed/non-bonded
// discovery peers).
func (tab *Table) del(node *Node) {
tab.mutex.Lock()
defer tab.mutex.Unlock()
bucket := tab.buckets[logdist(tab.self.sha, node.sha)]
for i := range bucket.entries {
if bucket.entries[i].ID == node.ID {
bucket.entries = append(bucket.entries[:i], bucket.entries[i+1:]...)
return
}
}
}
func (b *bucket) bump(n *Node) bool {
for i := range b.entries {
if b.entries[i].ID == n.ID {

49
p2p/server.go
View File

@ -55,6 +55,10 @@ type Server struct {
// Zero defaults to preset values.
MaxPendingPeers int
// Discovery specifies whether the peer discovery mechanism should be started
// or not. Disabling is usually useful for protocol debugging (manual topology).
Discovery bool
// Name sets the node name of this server.
// Use common.MakeName to create a name that follows existing conventions.
Name string
@ -237,9 +241,26 @@ func (srv *Server) AddPeer(node *discover.Node) {
func (srv *Server) Self() *discover.Node {
srv.lock.Lock()
defer srv.lock.Unlock()
// If the server's not running, return an empty node
if !srv.running {
return &discover.Node{IP: net.ParseIP("0.0.0.0")}
}
// If the node is running but discovery is off, manually assemble the node infos
if srv.ntab == nil {
// Inbound connections disabled, use zero address
if srv.listener == nil {
return &discover.Node{IP: net.ParseIP("0.0.0.0"), ID: discover.PubkeyID(&srv.PrivateKey.PublicKey)}
}
// Otherwise inject the listener address too
addr := srv.listener.Addr().(*net.TCPAddr)
return &discover.Node{
ID: discover.PubkeyID(&srv.PrivateKey.PublicKey),
IP: addr.IP,
TCP: uint16(addr.Port),
}
}
// Otherwise return the live node infos
return srv.ntab.Self()
}
@ -275,9 +296,6 @@ func (srv *Server) Start() (err error) {
if srv.PrivateKey == nil {
return fmt.Errorf("Server.PrivateKey must be set to a non-nil key")
}
if srv.MaxPeers <= 0 {
return fmt.Errorf("Server.MaxPeers must be > 0")
}
if srv.newTransport == nil {
srv.newTransport = newRLPX
}
@ -293,15 +311,22 @@ func (srv *Server) Start() (err error) {
srv.peerOpDone = make(chan struct{})
// node table
ntab, err := discover.ListenUDP(srv.PrivateKey, srv.ListenAddr, srv.NAT, srv.NodeDatabase)
if err != nil {
return err
if srv.Discovery {
ntab, err := discover.ListenUDP(srv.PrivateKey, srv.ListenAddr, srv.NAT, srv.NodeDatabase)
if err != nil {
return err
}
srv.ntab = ntab
}
srv.ntab = ntab
dialer := newDialState(srv.StaticNodes, srv.ntab, srv.MaxPeers/2)
dynPeers := srv.MaxPeers / 2
if !srv.Discovery {
dynPeers = 0
}
dialer := newDialState(srv.StaticNodes, srv.ntab, dynPeers)
// handshake
srv.ourHandshake = &protoHandshake{Version: baseProtocolVersion, Name: srv.Name, ID: ntab.Self().ID}
srv.ourHandshake = &protoHandshake{Version: baseProtocolVersion, Name: srv.Name, ID: discover.PubkeyID(&srv.PrivateKey.PublicKey)}
for _, p := range srv.Protocols {
srv.ourHandshake.Caps = append(srv.ourHandshake.Caps, p.cap())
}
@ -457,7 +482,9 @@ running:
}
// Terminate discovery. If there is a running lookup it will terminate soon.
srv.ntab.Close()
if srv.ntab != nil {
srv.ntab.Close()
}
// Disconnect all peers.
for _, p := range peers {
p.Disconnect(DiscQuitting)
@ -489,7 +516,7 @@ func (srv *Server) encHandshakeChecks(peers map[discover.NodeID]*Peer, c *conn)
return DiscTooManyPeers
case peers[c.id] != nil:
return DiscAlreadyConnected
case c.id == srv.ntab.Self().ID:
case c.id == srv.Self().ID:
return DiscSelf
default:
return nil

6
rpc/jeth.go
View File

@ -3,18 +3,18 @@ package rpc
import (
"encoding/json"
"fmt"
"github.com/ethereum/go-ethereum/jsre"
"github.com/robertkrimen/otto"
)
type Jeth struct {
ethApi *EthereumApi
toVal func(interface{}) otto.Value
re *jsre.JSRE
}
func NewJeth(ethApi *EthereumApi, toVal func(interface{}) otto.Value, re *jsre.JSRE) *Jeth {
return &Jeth{ethApi, toVal, re}
func NewJeth(ethApi *EthereumApi, re *jsre.JSRE) *Jeth {
return &Jeth{ethApi, re}
}
func (self *Jeth) err(call otto.FunctionCall, code int, msg string, id interface{}) (response otto.Value) {