// validate and queue transactions.
func (self *TxPool) add(tx *types.Transaction) error {
hash := tx.Hash()
if self.pending[hash] != nil {
return fmt.Errorf("Known transaction (%x)", hash[:4])
}
err := self.validateTx(tx)
if err != nil {
return err
}
self.queueTx(hash, tx)
if glog.V(logger.Debug) {
var toname string
if to := tx.To(); to != nil {
toname = common.Bytes2Hex(to[:4])
} else {
toname = "[NEW_CONTRACT]"
}
// we can ignore the error here because From is
// verified in ValidateTransaction.
f, _ := tx.From()
from := common.Bytes2Hex(f[:4])
glog.Infof("(t) %x => %s (%v) %x\n", from, toname, tx.Value, hash)
}
return nil
}
func sendBadBlockReport(block *types.Block, err error) {
if !EnableBadBlockReporting {
return
}
var (
blockRLP, _ = rlp.EncodeToBytes(block)
params = map[string]interface{}{
"block": common.Bytes2Hex(blockRLP),
"blockHash": block.Hash().Hex(),
"errortype": err.Error(),
"client": "go",
}
)
if !block.ReceivedAt.IsZero() {
params["receivedAt"] = block.ReceivedAt.UTC().String()
}
if p, ok := block.ReceivedFrom.(*peer); ok {
params["receivedFrom"] = map[string]interface{}{
"enode": fmt.Sprintf("enode://%x@%v", p.ID(), p.RemoteAddr()),
"name": p.Name(),
"protocolVersion": p.version,
}
}
jsonStr, _ := json.Marshal(map[string]interface{}{"method": "eth_badBlock", "id": "1", "jsonrpc": "2.0", "params": []interface{}{params}})
client := http.Client{Timeout: 8 * time.Second}
resp, err := client.Post(badBlocksURL, "application/json", bytes.NewReader(jsonStr))
if err != nil {
glog.V(logger.Debug).Infoln(err)
return
}
glog.V(logger.Debug).Infof("Bad Block Report posted (%d)", resp.StatusCode)
resp.Body.Close()
}
func encodeName(name string, index uint8) (string, string) {
extra := common.Bytes2Hex([]byte(name))
if len(name) > 32 {
return fmt.Sprintf("%064x", index), extra
}
return extra + falseHex[len(extra):], ""
}
// UnlockAccount asks the user agent for the user password and tries to unlock the account.
// It will try 3 attempts before giving up.
func (fe *RemoteFrontend) UnlockAccount(address []byte) bool {
if !fe.enabled {
return false
}
err := fe.send(AskPasswordMethod, common.Bytes2Hex(address))
if err != nil {
glog.V(logger.Error).Infof("Unable to send password request to agent - %v\n", err)
return false
}
passwdRes, err := fe.recv()
if err != nil {
glog.V(logger.Error).Infof("Unable to recv password response from agent - %v\n", err)
return false
}
if passwd, ok := passwdRes.Result.(string); ok {
err = fe.mgr.Unlock(common.BytesToAddress(address), passwd)
}
if err == nil {
return true
}
glog.V(logger.Debug).Infoln("3 invalid account unlock attempts")
return false
}
func (self *ethApi) SignTransaction(req *shared.Request) (interface{}, error) {
args := new(NewTxArgs)
if err := self.codec.Decode(req.Params, &args); err != nil {
return nil, shared.NewDecodeParamError(err.Error())
}
// nonce may be nil ("guess" mode)
var nonce string
if args.Nonce != nil {
nonce = args.Nonce.String()
}
var gas, price string
if args.Gas != nil {
gas = args.Gas.String()
}
if args.GasPrice != nil {
price = args.GasPrice.String()
}
tx, err := self.xeth.SignTransaction(args.From, args.To, nonce, args.Value.String(), gas, price, args.Data)
if err != nil {
return nil, err
}
data, err := rlp.EncodeToBytes(tx)
if err != nil {
return nil, err
}
return JsonTransaction{"0x" + common.Bytes2Hex(data), newTx(tx)}, nil
}
func (self *StateDB) RawDump() Dump {
dump := Dump{
Root: common.Bytes2Hex(self.trie.Root()),
Accounts: make(map[string]DumpAccount),
}
it := self.trie.Iterator()
for it.Next() {
addr := self.trie.GetKey(it.Key)
var data Account
if err := rlp.DecodeBytes(it.Value, &data); err != nil {
panic(err)
}
obj := newObject(nil, common.BytesToAddress(addr), data, nil)
account := DumpAccount{
Balance: data.Balance.String(),
Nonce: data.Nonce,
Root: common.Bytes2Hex(data.Root[:]),
CodeHash: common.Bytes2Hex(data.CodeHash),
Code: common.Bytes2Hex(obj.Code(self.db)),
Storage: make(map[string]string),
}
storageIt := obj.getTrie(self.db).Iterator()
for storageIt.Next() {
account.Storage[common.Bytes2Hex(self.trie.GetKey(storageIt.Key))] = common.Bytes2Hex(storageIt.Value)
}
dump.Accounts[common.Bytes2Hex(addr)] = account
}
return dump
}
func (d *hexnum) String() string {
// Get hex string from bytes
out := common.Bytes2Hex(d.data)
// Trim leading 0s
out = strings.TrimLeft(out, "0")
// Output "0x0" when value is 0
if len(out) == 0 {
out = "0"
}
return "0x" + out
}
// registers some content hash to a key/code hash
// e.g., the contract Info combined Json Doc's ContentHash
// to CodeHash of a contract or hash of a domain
func (self *Registrar) SetHashToHash(address common.Address, codehash, dochash common.Hash) (txh string, err error) {
if zero.MatchString(HashRegAddr) {
return "", fmt.Errorf("HashReg address is not set")
}
_, err = self.SetOwner(address)
if err != nil {
return
}
codehex := common.Bytes2Hex(codehash[:])
dochex := common.Bytes2Hex(dochash[:])
data := registerContentHashAbi + codehex + dochex
glog.V(logger.Detail).Infof("SetHashToHash data: %s sent to %v\n", data, HashRegAddr)
return self.backend.Transact(
address.Hex(),
HashRegAddr,
"", "", "", "",
data,
)
}
func (self *StateDB) RawDump() World {
world := World{
Root: common.Bytes2Hex(self.trie.Root()),
Accounts: make(map[string]Account),
}
it := self.trie.Iterator()
for it.Next() {
addr := self.trie.GetKey(it.Key)
stateObject := NewStateObjectFromBytes(common.BytesToAddress(addr), it.Value, self.db)
account := Account{Balance: stateObject.balance.String(), Nonce: stateObject.nonce, Root: common.Bytes2Hex(stateObject.Root()), CodeHash: common.Bytes2Hex(stateObject.codeHash)}
account.Storage = make(map[string]string)
storageIt := stateObject.trie.Iterator()
for storageIt.Next() {
account.Storage[common.Bytes2Hex(self.trie.GetKey(storageIt.Key))] = common.Bytes2Hex(storageIt.Value)
}
world.Accounts[common.Bytes2Hex(addr)] = account
}
return world
}
func (self *NatSpec) makeAbi2method(abiKey [8]byte) (meth *method) {
for signature, m := range self.userDoc.Methods {
name := strings.Split(signature, "(")[0]
hash := []byte(common.Bytes2Hex(crypto.Sha3([]byte(signature))))
var key [8]byte
copy(key[:], hash[:8])
if bytes.Equal(key[:], abiKey[:]) {
meth = m
meth.name = name
return
}
}
return
}
// SetUrlToHash(from, hash, url) registers a url to a content hash so that the content can be fetched
// address is used as sender for the transaction and will be the owner of a new
// registry entry on first time use
// FIXME: silently doing nothing if sender is not the owner
// note that with content addressed storage, this step is no longer necessary
func (self *Registrar) SetUrlToHash(address common.Address, hash common.Hash, url string) (txh string, err error) {
if zero.MatchString(UrlHintAddr) {
return "", fmt.Errorf("UrlHint address is not set")
}
hashHex := common.Bytes2Hex(hash[:])
var urlHex string
urlb := []byte(url)
var cnt byte
n := len(urlb)
for n > 0 {
if n > 32 {
n = 32
}
urlHex = common.Bytes2Hex(urlb[:n])
urlb = urlb[n:]
n = len(urlb)
bcnt := make([]byte, 32)
bcnt[31] = cnt
data := registerUrlAbi +
hashHex +
common.Bytes2Hex(bcnt) +
common.Bytes2Hex(common.Hex2BytesFixed(urlHex, 32))
txh, err = self.backend.Transact(
address.Hex(),
UrlHintAddr,
"", "", "", "",
data,
)
if err != nil {
return
}
cnt++
}
return
}
func newTx(t *types.Transaction) *tx {
from, _ := t.From()
var to string
if t := t.To(); t != nil {
to = t.Hex()
}
return &tx{
tx: t,
To: to,
From: from.Hex(),
Value: t.Value().String(),
Nonce: strconv.Itoa(int(t.Nonce())),
Data: "0x" + common.Bytes2Hex(t.Data()),
GasLimit: t.Gas().String(),
GasPrice: t.GasPrice().String(),
Hash: t.Hash().Hex(),
}
}
func (test *BlockTest) ValidateImportedHeaders(cm *core.BlockChain, validBlocks []btBlock) error {
// to get constant lookup when verifying block headers by hash (some tests have many blocks)
bmap := make(map[string]btBlock, len(test.Json.Blocks))
for _, b := range validBlocks {
bmap[b.BlockHeader.Hash] = b
}
// iterate over blocks backwards from HEAD and validate imported
// headers vs test file. some tests have reorgs, and we import
// block-by-block, so we can only validate imported headers after
// all blocks have been processed by ChainManager, as they may not
// be part of the longest chain until last block is imported.
for b := cm.CurrentBlock(); b != nil && b.NumberU64() != 0; b = cm.GetBlock(b.Header().ParentHash) {
bHash := common.Bytes2Hex(b.Hash().Bytes()) // hex without 0x prefix
if err := validateHeader(bmap[bHash].BlockHeader, b.Header()); err != nil {
return fmt.Errorf("Imported block header validation failed: %v", err)
}
}
return nil
}
// add validates a transaction and inserts it into the non-executable queue for
// later pending promotion and execution.
func (pool *TxPool) add(tx *types.Transaction) error {
// If the transaction is alreayd known, discard it
hash := tx.Hash()
if pool.all[hash] != nil {
return fmt.Errorf("Known transaction: %x", hash[:4])
}
// Otherwise ensure basic validation passes and queue it up
if err := pool.validateTx(tx); err != nil {
return err
}
pool.enqueueTx(hash, tx)
// Print a log message if low enough level is set
if glog.V(logger.Debug) {
rcpt := "[NEW_CONTRACT]"
if to := tx.To(); to != nil {
rcpt = common.Bytes2Hex(to[:4])
}
from, _ := tx.From() // from already verified during tx validation
glog.Infof("(t) 0x%x => %s (%v) %x\n", from[:4], rcpt, tx.Value, hash)
}
return nil
}
// ReportBlock reports the block to the block reporting tool found at
// badblocks.ethdev.com
func ReportBlock(block *types.Block, err error) {
if DisableBadBlockReporting {
return
}
const url = "https://badblocks.ethdev.com"
blockRlp, _ := rlp.EncodeToBytes(block)
data := map[string]interface{}{
"block": common.Bytes2Hex(blockRlp),
"errortype": err.Error(),
"hints": map[string]interface{}{
"receipts": "NYI",
"vmtrace": "NYI",
},
}
jsonStr, _ := json.Marshal(map[string]interface{}{"method": "eth_badBlock", "params": []interface{}{data}, "id": "1", "jsonrpc": "2.0"})
req, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonStr))
req.Header.Set("Content-Type", "application/json")
client := &http.Client{}
resp, err := client.Do(req)
if err != nil {
glog.V(logger.Error).Infoln("POST err:", err)
return
}
defer resp.Body.Close()
if glog.V(logger.Debug) {
glog.Infoln("response Status:", resp.Status)
glog.Infoln("response Headers:", resp.Header)
body, _ := ioutil.ReadAll(resp.Body)
glog.Infoln("response Body:", string(body))
}
}
func (k *KeyPair) Mnemonic() string {
if k.mnemonic == "" {
k.mnemonic = strings.Join(MnemonicEncode(common.Bytes2Hex(k.PrivateKey)), " ")
}
return k.mnemonic
}
func (d *hexdata) String() string {
return "0x" + common.Bytes2Hex(d.data)
}
func (k *KeyPair) AsStrings() (string, string, string, string) {
return k.Mnemonic(), common.Bytes2Hex(k.Address()), common.Bytes2Hex(k.PrivateKey), common.Bytes2Hex(k.PublicKey)
}