go-ethereum/rpc/args.go
2015-03-26 19:39:40 +01:00

772 lines
15 KiB
Go

package rpc
import (
"bytes"
"encoding/json"
"math/big"
"github.com/ethereum/go-ethereum/common"
)
func blockHeightFromJson(msg json.RawMessage, number *int64) error {
var raw interface{}
if err := json.Unmarshal(msg, &raw); err != nil {
return NewDecodeParamError(err.Error())
}
return blockHeight(raw, number)
}
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 NewInvalidTypeError("blockNumber", "not a number or string")
}
switch str {
case "latest":
*number = -1
case "pending":
*number = -2
default:
*number = common.String2Big(str).Int64()
}
return nil
}
func numString(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 NewInvalidTypeError("", "not a number or string")
}
*number = common.String2Big(str).Int64()
return nil
}
type GetBlockByHashArgs struct {
BlockHash common.Hash
IncludeTxs bool
}
func (args *GetBlockByHashArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
r := bytes.NewReader(b)
if err := json.NewDecoder(r).Decode(&obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
argstr, ok := obj[0].(string)
if !ok {
return NewInvalidTypeError("blockHash", "not a string")
}
args.BlockHash = common.HexToHash(argstr)
if len(obj) > 1 {
args.IncludeTxs = obj[1].(bool)
}
return nil
}
type GetBlockByNumberArgs struct {
BlockNumber int64
IncludeTxs bool
}
func (args *GetBlockByNumberArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
r := bytes.NewReader(b)
if err := json.NewDecoder(r).Decode(&obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
if v, ok := obj[0].(float64); ok {
args.BlockNumber = int64(v)
} else if v, ok := obj[0].(string); ok {
args.BlockNumber = common.Big(v).Int64()
} else {
return NewInvalidTypeError("blockNumber", "not a number or string")
}
if len(obj) > 1 {
args.IncludeTxs = obj[1].(bool)
}
return nil
}
type NewTxArgs struct {
From common.Address
To common.Address
Value *big.Int
Gas *big.Int
GasPrice *big.Int
Data string
BlockNumber int64
}
func (args *NewTxArgs) UnmarshalJSON(b []byte) (err error) {
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())
}
// 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())
}
if len(ext.From) == 0 {
return NewValidationError("from", "is required")
}
args.From = common.HexToAddress(ext.From)
args.To = common.HexToAddress(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 {
if err := blockHeightFromJson(obj[1], &args.BlockNumber); err != nil {
return err
}
}
return nil
}
type GetStorageArgs struct {
Address common.Address
BlockNumber int64
}
func (args *GetStorageArgs) UnmarshalJSON(b []byte) (err error) {
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 NewInvalidTypeError("address", "not a string")
}
args.Address = common.HexToAddress(addstr)
if len(obj) > 1 {
if err := blockHeight(obj[1], &args.BlockNumber); err != nil {
return err
}
}
return nil
}
type GetStorageAtArgs struct {
Address common.Address
Key common.Hash
BlockNumber int64
}
func (args *GetStorageAtArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) < 2 {
return NewInsufficientParamsError(len(obj), 2)
}
addstr, ok := obj[0].(string)
if !ok {
return NewInvalidTypeError("address", "not a string")
}
args.Address = common.HexToAddress(addstr)
keystr, ok := obj[1].(string)
if !ok {
return NewInvalidTypeError("key", "not a string")
}
args.Key = common.HexToHash(keystr)
if len(obj) > 2 {
if err := blockHeight(obj[2], &args.BlockNumber); err != nil {
return err
}
}
return nil
}
type GetTxCountArgs struct {
Address common.Address
BlockNumber int64
}
func (args *GetTxCountArgs) UnmarshalJSON(b []byte) (err error) {
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 NewInvalidTypeError("address", "not a string")
}
args.Address = common.HexToAddress(addstr)
if len(obj) > 1 {
if err := blockHeight(obj[1], &args.BlockNumber); err != nil {
return err
}
}
return nil
}
type GetBalanceArgs struct {
Address common.Address
BlockNumber int64
}
func (args *GetBalanceArgs) UnmarshalJSON(b []byte) (err error) {
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 NewInvalidTypeError("address", "not a string")
}
args.Address = common.HexToAddress(addstr)
if len(obj) > 1 {
if err := blockHeight(obj[1], &args.BlockNumber); err != nil {
return err
}
}
return nil
}
type GetDataArgs struct {
Address common.Address
BlockNumber int64
}
func (args *GetDataArgs) UnmarshalJSON(b []byte) (err error) {
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 NewInvalidTypeError("address", "not a string")
}
args.Address = common.HexToAddress(addstr)
if len(obj) > 1 {
if err := blockHeight(obj[1], &args.BlockNumber); err != nil {
return err
}
}
return nil
}
type BlockNumIndexArgs struct {
BlockNumber int64
Index int64
}
func (args *BlockNumIndexArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
r := bytes.NewReader(b)
if err := json.NewDecoder(r).Decode(&obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
if err := blockHeight(obj[0], &args.BlockNumber); err != nil {
return err
}
if len(obj) > 1 {
arg1, ok := obj[1].(string)
if !ok {
return NewInvalidTypeError("index", "not a string")
}
args.Index = common.Big(arg1).Int64()
}
return nil
}
type HashIndexArgs struct {
Hash common.Hash
Index int64
}
func (args *HashIndexArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
r := bytes.NewReader(b)
if err := json.NewDecoder(r).Decode(&obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
arg0, ok := obj[0].(string)
if !ok {
return NewInvalidTypeError("hash", "not a string")
}
args.Hash = common.HexToHash(arg0)
if len(obj) > 1 {
arg1, ok := obj[1].(string)
if !ok {
return NewInvalidTypeError("index", "not a string")
}
args.Index = common.Big(arg1).Int64()
}
return nil
}
type Sha3Args struct {
Data string
}
func (args *Sha3Args) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
r := bytes.NewReader(b)
if err := json.NewDecoder(r).Decode(&obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
argstr, ok := obj[0].(string)
if !ok {
return NewInvalidTypeError("data", "is not a string")
}
args.Data = argstr
return nil
}
type BlockFilterArgs struct {
Earliest int64
Latest int64
Address interface{}
Topics []interface{}
Skip int
Max int
}
func (args *BlockFilterArgs) UnmarshalJSON(b []byte) (err error) {
var obj []struct {
FromBlock interface{} `json:"fromBlock"`
ToBlock interface{} `json:"toBlock"`
Limit interface{} `json:"limit"`
Offset interface{} `json:"offset"`
Address string `json:"address"`
Topics []interface{} `json:"topics"`
}
if err = json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
var num int64
if err := blockHeight(obj[0].FromBlock, &num); err != nil {
return err
}
if num < 0 {
args.Earliest = -1 //latest block
} else {
args.Earliest = num
}
if err := blockHeight(obj[0].ToBlock, &num); err != nil {
return err
}
args.Latest = num
if err := numString(obj[0].Limit, &num); err != nil {
return err
}
args.Max = int(num)
if err := numString(obj[0].Offset, &num); err != nil {
return err
}
args.Skip = int(num)
args.Address = obj[0].Address
args.Topics = obj[0].Topics
return nil
}
type DbArgs struct {
Database string
Key string
Value []byte
}
func (args *DbArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) < 2 {
return NewInsufficientParamsError(len(obj), 2)
}
var objstr string
var ok bool
if objstr, ok = obj[0].(string); !ok {
return NewInvalidTypeError("database", "not a string")
}
args.Database = objstr
if objstr, ok = obj[1].(string); !ok {
return NewInvalidTypeError("key", "not a string")
}
args.Key = objstr
if len(obj) > 2 {
objstr, ok = obj[2].(string)
if !ok {
return NewInvalidTypeError("value", "not a string")
}
args.Value = []byte(objstr)
}
return nil
}
func (a *DbArgs) requirements() error {
if len(a.Database) == 0 {
return NewValidationError("Database", "cannot be blank")
}
if len(a.Key) == 0 {
return NewValidationError("Key", "cannot be blank")
}
return nil
}
type DbHexArgs struct {
Database string
Key string
Value []byte
}
func (args *DbHexArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) < 2 {
return NewInsufficientParamsError(len(obj), 2)
}
var objstr string
var ok bool
if objstr, ok = obj[0].(string); !ok {
return NewInvalidTypeError("database", "not a string")
}
args.Database = objstr
if objstr, ok = obj[1].(string); !ok {
return NewInvalidTypeError("key", "not a string")
}
args.Key = objstr
if len(obj) > 2 {
objstr, ok = obj[2].(string)
if !ok {
return NewInvalidTypeError("value", "not a string")
}
args.Value = common.FromHex(objstr)
}
return nil
}
func (a *DbHexArgs) requirements() error {
if len(a.Database) == 0 {
return NewValidationError("Database", "cannot be blank")
}
if len(a.Key) == 0 {
return NewValidationError("Key", "cannot be blank")
}
return nil
}
type WhisperMessageArgs struct {
Payload string
To string
From string
Topics []string
Priority uint32
Ttl uint32
}
func (args *WhisperMessageArgs) UnmarshalJSON(b []byte) (err error) {
var obj []struct {
Payload string
To string
From string
Topics []string
Priority string
Ttl string
}
if err = json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
args.Payload = obj[0].Payload
args.To = obj[0].To
args.From = obj[0].From
args.Topics = obj[0].Topics
args.Priority = uint32(common.Big(obj[0].Priority).Int64())
args.Ttl = uint32(common.Big(obj[0].Ttl).Int64())
return nil
}
type CompileArgs struct {
Source string
}
func (args *CompileArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
r := bytes.NewReader(b)
if err := json.NewDecoder(r).Decode(&obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) > 0 {
args.Source = obj[0].(string)
}
return nil
}
type FilterStringArgs struct {
Word string
}
func (args *FilterStringArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
r := bytes.NewReader(b)
if err := json.NewDecoder(r).Decode(&obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
var argstr string
argstr, ok := obj[0].(string)
if !ok {
return NewInvalidTypeError("filter", "not a string")
}
args.Word = argstr
return nil
}
func (args *FilterStringArgs) requirements() error {
switch args.Word {
case "latest", "pending":
break
default:
return NewValidationError("Word", "Must be `latest` or `pending`")
}
return nil
}
type FilterIdArgs struct {
Id int
}
func (args *FilterIdArgs) UnmarshalJSON(b []byte) (err error) {
var obj []string
r := bytes.NewReader(b)
if err := json.NewDecoder(r).Decode(&obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
args.Id = int(common.Big(obj[0]).Int64())
return nil
}
type WhisperIdentityArgs struct {
Identity string
}
func (args *WhisperIdentityArgs) UnmarshalJSON(b []byte) (err error) {
var obj []string
r := bytes.NewReader(b)
if err := json.NewDecoder(r).Decode(&obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
args.Identity = obj[0]
return nil
}
type WhisperFilterArgs struct {
To string `json:"to"`
From string
Topics []string
}
func (args *WhisperFilterArgs) UnmarshalJSON(b []byte) (err error) {
var obj []struct {
To string
From string
Topics []string
}
if err = json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
args.To = obj[0].To
args.From = obj[0].From
args.Topics = obj[0].Topics
return nil
}
type SubmitWorkArgs struct {
Nonce uint64
Header common.Hash
Digest common.Hash
}
func (args *SubmitWorkArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
if err = json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) < 3 {
return NewInsufficientParamsError(len(obj), 3)
}
var objstr string
var ok bool
if objstr, ok = obj[0].(string); !ok {
return NewInvalidTypeError("nonce", "not a string")
}
args.Nonce = common.String2Big(objstr).Uint64()
if objstr, ok = obj[1].(string); !ok {
return NewInvalidTypeError("header", "not a string")
}
args.Header = common.HexToHash(objstr)
if objstr, ok = obj[2].(string); !ok {
return NewInvalidTypeError("digest", "not a string")
}
args.Digest = common.HexToHash(objstr)
return nil
}