diff options
Diffstat (limited to 'rpc/api/parsing.go')
| -rw-r--r-- | rpc/api/parsing.go | 460 |
1 files changed, 460 insertions, 0 deletions
diff --git a/rpc/api/parsing.go b/rpc/api/parsing.go new file mode 100644 index 000000000..85a9165e5 --- /dev/null +++ b/rpc/api/parsing.go @@ -0,0 +1,460 @@ +package api + +import ( + "encoding/binary" + "encoding/hex" + "encoding/json" + "math/big" + "strings" + + "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/core/types" + "github.com/ethereum/go-ethereum/rpc/shared" +) + +type hexdata struct { + data []byte + isNil bool +} + +func (d *hexdata) String() string { + return "0x" + common.Bytes2Hex(d.data) +} + +func (d *hexdata) MarshalJSON() ([]byte, error) { + if d.isNil { + return json.Marshal(nil) + } + return json.Marshal(d.String()) +} + +func newHexData(input interface{}) *hexdata { + d := new(hexdata) + + if input == nil { + d.isNil = true + return d + } + switch input := input.(type) { + case []byte: + d.data = input + case common.Hash: + d.data = input.Bytes() + case *common.Hash: + if input == nil { + d.isNil = true + } else { + d.data = input.Bytes() + } + case common.Address: + d.data = input.Bytes() + case *common.Address: + if input == nil { + d.isNil = true + } else { + d.data = input.Bytes() + } + case types.Bloom: + d.data = input.Bytes() + case *types.Bloom: + if input == nil { + d.isNil = true + } else { + d.data = input.Bytes() + } + case *big.Int: + if input == nil { + d.isNil = true + } else { + d.data = input.Bytes() + } + case int64: + d.data = big.NewInt(input).Bytes() + case uint64: + buff := make([]byte, 8) + binary.BigEndian.PutUint64(buff, input) + d.data = buff + case int: + d.data = big.NewInt(int64(input)).Bytes() + case uint: + d.data = big.NewInt(int64(input)).Bytes() + case int8: + d.data = big.NewInt(int64(input)).Bytes() + case uint8: + d.data = big.NewInt(int64(input)).Bytes() + case int16: + d.data = big.NewInt(int64(input)).Bytes() + case uint16: + buff := make([]byte, 2) + binary.BigEndian.PutUint16(buff, input) + d.data = buff + case int32: + d.data = big.NewInt(int64(input)).Bytes() + case uint32: + buff := make([]byte, 4) + binary.BigEndian.PutUint32(buff, input) + d.data = buff + case string: // hexstring + // aaargh ffs TODO: avoid back-and-forth hex encodings where unneeded + bytes, err := hex.DecodeString(strings.TrimPrefix(input, "0x")) + if err != nil { + d.isNil = true + } else { + d.data = bytes + } + default: + d.isNil = true + } + + return d +} + +type hexnum struct { + data []byte + isNil bool +} + +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 +} + +func (d *hexnum) MarshalJSON() ([]byte, error) { + if d.isNil { + return json.Marshal(nil) + } + return json.Marshal(d.String()) +} + +func newHexNum(input interface{}) *hexnum { + d := new(hexnum) + + d.data = newHexData(input).data + + return d +} + +type BlockRes struct { + fullTx bool + + BlockNumber *hexnum `json:"number"` + BlockHash *hexdata `json:"hash"` + ParentHash *hexdata `json:"parentHash"` + Nonce *hexdata `json:"nonce"` + Sha3Uncles *hexdata `json:"sha3Uncles"` + LogsBloom *hexdata `json:"logsBloom"` + TransactionRoot *hexdata `json:"transactionsRoot"` + StateRoot *hexdata `json:"stateRoot"` + Miner *hexdata `json:"miner"` + Difficulty *hexnum `json:"difficulty"` + TotalDifficulty *hexnum `json:"totalDifficulty"` + Size *hexnum `json:"size"` + ExtraData *hexdata `json:"extraData"` + GasLimit *hexnum `json:"gasLimit"` + GasUsed *hexnum `json:"gasUsed"` + UnixTimestamp *hexnum `json:"timestamp"` + Transactions []*TransactionRes `json:"transactions"` + Uncles []*UncleRes `json:"uncles"` +} + +func (b *BlockRes) MarshalJSON() ([]byte, error) { + if b.fullTx { + var ext struct { + BlockNumber *hexnum `json:"number"` + BlockHash *hexdata `json:"hash"` + ParentHash *hexdata `json:"parentHash"` + Nonce *hexdata `json:"nonce"` + Sha3Uncles *hexdata `json:"sha3Uncles"` + LogsBloom *hexdata `json:"logsBloom"` + TransactionRoot *hexdata `json:"transactionsRoot"` + StateRoot *hexdata `json:"stateRoot"` + Miner *hexdata `json:"miner"` + Difficulty *hexnum `json:"difficulty"` + TotalDifficulty *hexnum `json:"totalDifficulty"` + Size *hexnum `json:"size"` + ExtraData *hexdata `json:"extraData"` + GasLimit *hexnum `json:"gasLimit"` + GasUsed *hexnum `json:"gasUsed"` + UnixTimestamp *hexnum `json:"timestamp"` + Transactions []*TransactionRes `json:"transactions"` + Uncles []*hexdata `json:"uncles"` + } + + ext.BlockNumber = b.BlockNumber + ext.BlockHash = b.BlockHash + ext.ParentHash = b.ParentHash + ext.Nonce = b.Nonce + ext.Sha3Uncles = b.Sha3Uncles + ext.LogsBloom = b.LogsBloom + ext.TransactionRoot = b.TransactionRoot + ext.StateRoot = b.StateRoot + ext.Miner = b.Miner + ext.Difficulty = b.Difficulty + ext.TotalDifficulty = b.TotalDifficulty + ext.Size = b.Size + ext.ExtraData = b.ExtraData + ext.GasLimit = b.GasLimit + ext.GasUsed = b.GasUsed + ext.UnixTimestamp = b.UnixTimestamp + ext.Transactions = b.Transactions + ext.Uncles = make([]*hexdata, len(b.Uncles)) + for i, u := range b.Uncles { + ext.Uncles[i] = u.BlockHash + } + return json.Marshal(ext) + } else { + var ext struct { + BlockNumber *hexnum `json:"number"` + BlockHash *hexdata `json:"hash"` + ParentHash *hexdata `json:"parentHash"` + Nonce *hexdata `json:"nonce"` + Sha3Uncles *hexdata `json:"sha3Uncles"` + LogsBloom *hexdata `json:"logsBloom"` + TransactionRoot *hexdata `json:"transactionsRoot"` + StateRoot *hexdata `json:"stateRoot"` + Miner *hexdata `json:"miner"` + Difficulty *hexnum `json:"difficulty"` + TotalDifficulty *hexnum `json:"totalDifficulty"` + Size *hexnum `json:"size"` + ExtraData *hexdata `json:"extraData"` + GasLimit *hexnum `json:"gasLimit"` + GasUsed *hexnum `json:"gasUsed"` + UnixTimestamp *hexnum `json:"timestamp"` + Transactions []*hexdata `json:"transactions"` + Uncles []*hexdata `json:"uncles"` + } + + ext.BlockNumber = b.BlockNumber + ext.BlockHash = b.BlockHash + ext.ParentHash = b.ParentHash + ext.Nonce = b.Nonce + ext.Sha3Uncles = b.Sha3Uncles + ext.LogsBloom = b.LogsBloom + ext.TransactionRoot = b.TransactionRoot + ext.StateRoot = b.StateRoot + ext.Miner = b.Miner + ext.Difficulty = b.Difficulty + ext.TotalDifficulty = b.TotalDifficulty + ext.Size = b.Size + ext.ExtraData = b.ExtraData + ext.GasLimit = b.GasLimit + ext.GasUsed = b.GasUsed + ext.UnixTimestamp = b.UnixTimestamp + ext.Transactions = make([]*hexdata, len(b.Transactions)) + for i, tx := range b.Transactions { + ext.Transactions[i] = tx.Hash + } + ext.Uncles = make([]*hexdata, len(b.Uncles)) + for i, u := range b.Uncles { + ext.Uncles[i] = u.BlockHash + } + return json.Marshal(ext) + } +} + +func NewBlockRes(block *types.Block, fullTx bool) *BlockRes { + if block == nil { + return nil + } + + res := new(BlockRes) + res.fullTx = fullTx + res.BlockNumber = newHexNum(block.Number()) + res.BlockHash = newHexData(block.Hash()) + res.ParentHash = newHexData(block.ParentHash()) + res.Nonce = newHexData(block.Nonce()) + res.Sha3Uncles = newHexData(block.Header().UncleHash) + res.LogsBloom = newHexData(block.Bloom()) + res.TransactionRoot = newHexData(block.Header().TxHash) + res.StateRoot = newHexData(block.Root()) + res.Miner = newHexData(block.Header().Coinbase) + res.Difficulty = newHexNum(block.Difficulty()) + res.TotalDifficulty = newHexNum(block.Td) + res.Size = newHexNum(block.Size().Int64()) + res.ExtraData = newHexData(block.Header().Extra) + res.GasLimit = newHexNum(block.GasLimit()) + res.GasUsed = newHexNum(block.GasUsed()) + res.UnixTimestamp = newHexNum(block.Time()) + + res.Transactions = make([]*TransactionRes, len(block.Transactions())) + for i, tx := range block.Transactions() { + res.Transactions[i] = NewTransactionRes(tx) + res.Transactions[i].BlockHash = res.BlockHash + res.Transactions[i].BlockNumber = res.BlockNumber + res.Transactions[i].TxIndex = newHexNum(i) + } + + res.Uncles = make([]*UncleRes, len(block.Uncles())) + for i, uncle := range block.Uncles() { + res.Uncles[i] = NewUncleRes(uncle) + } + + return res +} + +type TransactionRes struct { + Hash *hexdata `json:"hash"` + Nonce *hexnum `json:"nonce"` + BlockHash *hexdata `json:"blockHash"` + BlockNumber *hexnum `json:"blockNumber"` + TxIndex *hexnum `json:"transactionIndex"` + From *hexdata `json:"from"` + To *hexdata `json:"to"` + Value *hexnum `json:"value"` + Gas *hexnum `json:"gas"` + GasPrice *hexnum `json:"gasPrice"` + Input *hexdata `json:"input"` +} + +func NewTransactionRes(tx *types.Transaction) *TransactionRes { + if tx == nil { + return nil + } + + var v = new(TransactionRes) + v.Hash = newHexData(tx.Hash()) + v.Nonce = newHexNum(tx.Nonce()) + // v.BlockHash = + // v.BlockNumber = + // v.TxIndex = + from, _ := tx.From() + v.From = newHexData(from) + v.To = newHexData(tx.To()) + v.Value = newHexNum(tx.Value()) + v.Gas = newHexNum(tx.Gas()) + v.GasPrice = newHexNum(tx.GasPrice()) + v.Input = newHexData(tx.Data()) + return v +} + +type UncleRes struct { + BlockNumber *hexnum `json:"number"` + BlockHash *hexdata `json:"hash"` + ParentHash *hexdata `json:"parentHash"` + Nonce *hexdata `json:"nonce"` + Sha3Uncles *hexdata `json:"sha3Uncles"` + ReceiptHash *hexdata `json:"receiptHash"` + LogsBloom *hexdata `json:"logsBloom"` + TransactionRoot *hexdata `json:"transactionsRoot"` + StateRoot *hexdata `json:"stateRoot"` + Miner *hexdata `json:"miner"` + Difficulty *hexnum `json:"difficulty"` + ExtraData *hexdata `json:"extraData"` + GasLimit *hexnum `json:"gasLimit"` + GasUsed *hexnum `json:"gasUsed"` + UnixTimestamp *hexnum `json:"timestamp"` +} + +func NewUncleRes(h *types.Header) *UncleRes { + if h == nil { + return nil + } + + var v = new(UncleRes) + v.BlockNumber = newHexNum(h.Number) + v.BlockHash = newHexData(h.Hash()) + v.ParentHash = newHexData(h.ParentHash) + v.Sha3Uncles = newHexData(h.UncleHash) + v.Nonce = newHexData(h.Nonce[:]) + v.LogsBloom = newHexData(h.Bloom) + v.TransactionRoot = newHexData(h.TxHash) + v.StateRoot = newHexData(h.Root) + v.Miner = newHexData(h.Coinbase) + v.Difficulty = newHexNum(h.Difficulty) + v.ExtraData = newHexData(h.Extra) + v.GasLimit = newHexNum(h.GasLimit) + v.GasUsed = newHexNum(h.GasUsed) + v.UnixTimestamp = newHexNum(h.Time) + v.ReceiptHash = newHexData(h.ReceiptHash) + + return v +} + +// type FilterLogRes struct { +// Hash string `json:"hash"` +// Address string `json:"address"` +// Data string `json:"data"` +// BlockNumber string `json:"blockNumber"` +// TransactionHash string `json:"transactionHash"` +// BlockHash string `json:"blockHash"` +// TransactionIndex string `json:"transactionIndex"` +// LogIndex string `json:"logIndex"` +// } + +// type FilterWhisperRes struct { +// Hash string `json:"hash"` +// From string `json:"from"` +// To string `json:"to"` +// Expiry string `json:"expiry"` +// Sent string `json:"sent"` +// Ttl string `json:"ttl"` +// Topics string `json:"topics"` +// Payload string `json:"payload"` +// WorkProved string `json:"workProved"` +// } + +func numString(raw interface{}) (*big.Int, error) { + var number *big.Int + // Parse as integer + num, ok := raw.(float64) + if ok { + number = big.NewInt(int64(num)) + return number, nil + } + + // Parse as string/hexstring + str, ok := raw.(string) + if ok { + number = common.String2Big(str) + return number, nil + } + + return nil, shared.NewInvalidTypeError("", "not a number or string") +} + +func blockHeight(raw interface{}, number *int64) 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 shared.NewInvalidTypeError("", "not a number or string") + } + + switch str { + case "earliest": + *number = 0 + case "latest": + *number = -1 + case "pending": + *number = -2 + default: + if common.HasHexPrefix(str) { + *number = common.String2Big(str).Int64() + } else { + return shared.NewInvalidTypeError("blockNumber", "is not a valid string") + } + } + + return nil +} + +func blockHeightFromJson(msg json.RawMessage, number *int64) error { + var raw interface{} + if err := json.Unmarshal(msg, &raw); err != nil { + return shared.NewDecodeParamError(err.Error()) + } + return blockHeight(raw, number) +} |