package api
import (
"encoding/json"
"fmt"
"math/big"
"strconv"
"strings"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/rpc/shared"
)
const (
defaultLogLimit = 100
defaultLogOffset = 0
)
type GetBalanceArgs struct {
Address string
BlockNumber int64
}
func (args *GetBalanceArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return shared.NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return shared.NewInsufficientParamsError(len(obj), 1)
}
addstr, ok := obj[0].(string)
if !ok {
return shared.NewInvalidTypeError("address", "not a string")
}
args.Address = addstr
if len(obj) > 1 {
if err := blockHeight(obj[1], &args.BlockNumber); err != nil {
return err
}
} else {
args.BlockNumber = -1
}
return nil
}
type GetStorageArgs struct {
Address string
BlockNumber int64
}
func (args *GetStorageArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return shared.NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return shared.NewInsufficientParamsError(len(obj), 1)
}
addstr, ok := obj[0].(string)
if !ok {
return shared.NewInvalidTypeError("address", "not a string")
}
args.Address = addstr
if len(obj) > 1 {
if err := blockHeight(obj[1], &args.BlockNumber); err != nil {
return err
}
} else {
args.BlockNumber = -1
}
return nil
}
type GetStorageAtArgs struct {
Address string
BlockNumber int64
Key string
}
func (args *GetStorageAtArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return shared.NewDecodeParamError(err.Error())
}
if len(obj) < 2 {
return shared.NewInsufficientParamsError(len(obj), 2)
}
addstr, ok := obj[0].(string)
if !ok {
return shared.NewInvalidTypeError("address", "not a string")
}
args.Address = addstr
keystr, ok := obj[1].(string)
if !ok {
return shared.NewInvalidTypeError("key", "not a string")
}
args.Key = keystr
if len(obj) > 2 {
if err := blockHeight(obj[2], &args.BlockNumber); err != nil {
return err
}
} else {
args.BlockNumber = -1
}
return nil
}
type GetTxCountArgs struct {
Address string
BlockNumber int64
}
func (args *GetTxCountArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return shared.NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return shared.NewInsufficientParamsError(len(obj), 1)
}
addstr, ok := obj[0].(string)
if !ok {
return shared.NewInvalidTypeError("address", "not a string")
}
args.Address = addstr
if len(obj) > 1 {
if err := blockHeight(obj[1], &args.BlockNumber); err != nil {
return err
}
} else {
args.BlockNumber = -1
}
return nil
}
type HashArgs struct {
Hash string
}
func (args *HashArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return shared.NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return shared.NewInsufficientParamsError(len(obj), 1)
}
arg0, ok := obj[0].(string)
if !ok {
return shared.NewInvalidTypeError("hash", "not a string")
}
args.Hash = arg0
return nil
}
type BlockNumArg struct {
BlockNumber int64
}
func (args *BlockNumArg) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return shared.NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return shared.NewInsufficientParamsError(len(obj), 1)
}
if err := blockHeight(obj[0], &args.BlockNumber); err != nil {
return err
}
return nil
}
type GetDataArgs struct {
Address string
BlockNumber int64
}
func (args *GetDataArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return shared.NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return shared.NewInsufficientParamsError(len(obj), 1)
}
addstr, ok := obj[0].(string)
if !ok {
return shared.NewInvalidTypeError("address", "not a string")
}
args.Address = addstr
if len(obj) > 1 {
if err := blockHeight(obj[1], &args.BlockNumber); err != nil {
return err
}
} else {
args.BlockNumber = -1
}
return nil
}
type NewDataArgs struct {
Data string
}
func (args *NewDataArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return shared.NewDecodeParamError(err.Error())
}
// Check for sufficient params
if len(obj) < 1 {
return shared.NewInsufficientParamsError(len(obj), 1)
}
data, ok := obj[0].(string)
if !ok {
return shared.NewInvalidTypeError("data", "not a string")
}
args.Data = data
if len(args.Data) == 0 {
return shared.NewValidationError("data", "is required")
}
return nil
}
type NewSigArgs struct {
From string
Data string
}
func (args *NewSigArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return shared.NewDecodeParamError(err.Error())
}
// Check for sufficient params
if len(obj) < 1 {
return shared.NewInsufficientParamsError(len(obj), 1)
}
from, ok := obj[0].(string)
if !ok {
return shared.NewInvalidTypeError("from", "not a string")
}
args.From = from
if len(args.From) == 0 {
return shared.NewValidationError("from", "is required")
}
data, ok := obj[1].(string)
if !ok {
return shared.NewInvalidTypeError("data", "not a string")
}
args.Data = data
if len(args.Data) == 0 {
return shared.NewValidationError("data", "is required")
}
return nil
}
type NewTxArgs struct {
From string
To string
Nonce *big.Int
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 string
To string
Nonce interface{}
Value interface{}
Gas interface{}
GasPrice interface{}
Data string
}
// Decode byte slice to array of RawMessages
if err := json.Unmarshal(b, &obj); err != nil {
return shared.NewDecodeParamError(err.Error())
}
// Check for sufficient params
if len(obj) < 1 {
return shared.NewInsufficientParamsError(len(obj), 1)
}
// Decode 0th RawMessage to temporary struct
if err := json.Unmarshal(obj[0], &ext); err != nil {
return shared.NewDecodeParamError(err.Error())
}
if len(ext.From) == 0 {
return shared.NewValidationError("from", "is required")
}
args.From = ext.From
args.To = ext.To
args.Data = ext.Data
var num *big.Int
if ext.Nonce != nil {
num, err = numString(ext.Nonce)
if err != nil {
return err
}
}
args.Nonce = num
if ext.Value == nil {
num = big.NewInt(0)
} else {
num, err = numString(ext.Value)
if err != nil {
return err
}
}
args.Value = num
num = nil
if ext.Gas != nil {
if num, err = numString(ext.Gas); err != nil {
return err
}
}
args.Gas = num
num = nil
if ext.GasPrice != nil {
if num, err = numString(ext.GasPrice); err != nil {
return err
}
}
args.GasPrice = num
// Check for optional BlockNumber param
if len(obj) > 1 {
if err := blockHeightFromJson(obj[1], &args.BlockNumber); err != nil {
return err
}
} else {
args.BlockNumber = -1
}
return nil
}
type SourceArgs struct {
Source string
}
func (args *SourceArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return shared.NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return shared.NewInsufficientParamsError(len(obj), 1)
}
arg0, ok := obj[0].(string)
if !ok {
return shared.NewInvalidTypeError("source code", "not a string")
}
args.Source = arg0
return nil
}
type CallArgs struct {
From string
To string
Value *big.Int
Gas *big.Int
GasPrice *big.Int
Data string
BlockNumber int64
}
func (args *CallArgs) UnmarshalJSON(b []byte) (err error) {
var obj []json.RawMessage
var ext struct {
From string
To string
Value interface{}
Gas interface{}
GasPrice interface{}
Data string
}
// Decode byte slice to array of RawMessages
if err := json.Unmarshal(b, &obj); err != nil {
return shared.NewDecodeParamError(err.Error())
}
// Check for sufficient params
if len(obj) < 1 {
return shared.NewInsufficientParamsError(len(obj), 1)
}
// Decode 0th RawMessage to temporary struct
if err := json.Unmarshal(obj[0], &ext); err != nil {
return shared.NewDecodeParamError(err.Error())
}
args.From = ext.From
if len(ext.To) == 0 {
return shared.NewValidationError("to", "is required")
}
args.To = ext.To
var num *big.Int
if ext.Value == nil {
num = big.NewInt(0)
} else {
if num, err = numString(ext.Value); err != nil {
return err
}
}
args.Value = num
if ext.Gas != nil {
if num, err = numString(ext.Gas); err != nil {
return err
}
} else {
num = nil
}
args.Gas = num
if ext.GasPrice != nil {
if num, err = numString(ext.GasPrice); err != nil {
return err
}
} else {
num = nil
}
args.GasPrice = num
args.Data = ext.Data
// Check for optional BlockNumber param
if len(obj) > 1 {
if err := blockHeightFromJson(obj[1], &args.BlockNumber); err != nil {
return err
}
} else {
args.BlockNumber = -1
}
return nil
}
type HashIndexArgs struct {
Hash string
Index int64
}
func (args *HashIndexArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return shared.NewDecodeParamError(err.Error())
}
if len(obj) < 2 {
return shared.NewInsufficientParamsError(len(obj), 2)
}
arg0, ok := obj[0].(string)
if !ok {
return shared.NewInvalidTypeError("hash", "not a string")
}
args.Hash = arg0
arg1, ok := obj[1].(string)
if !ok {
return shared.NewInvalidTypeError("index", "not a string")
}
args.Index = common.Big(arg1).Int64()
return nil
}
type BlockNumIndexArgs struct {
BlockNumber int64
Index int64
}
func (args *BlockNumIndexArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return shared.NewDecodeParamError(err.Error())
}
if len(obj) < 2 {
return shared.NewInsufficientParamsError(len(obj), 2)
}
if err := blockHeight(obj[0], &args.BlockNumber); err != nil {
return err
}
var arg1 *big.Int
if arg1, err = numString(obj[1]); err != nil {
return err
}
args.Index = arg1.Int64()
return nil
}
type GetBlockByHashArgs struct {
BlockHash string
IncludeTxs bool
}
func (args *GetBlockByHashArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return shared.NewDecodeParamError(err.Error())
}
if len(obj) < 2 {
return shared.NewInsufficientParamsError(len(obj), 2)
}
argstr, ok := obj[0].(string)
if !ok {
return shared.NewInvalidTypeError("blockHash", "not a string")
}
args.BlockHash = argstr
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{}
if err := json.Unmarshal(b, &obj); err != nil {
return shared.NewDecodeParamError(err.Error())
}
if len(obj) < 2 {
return shared.NewInsufficientParamsError(len(obj), 2)
}
if err := blockHeight(obj[0], &args.BlockNumber); err != nil {
return err
}
args.IncludeTxs = obj[1].(bool)
return nil
}
type BlockFilterArgs struct {
Earliest int64
Latest int64
Address []string
Topics [][]string
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 interface{} `json:"address"`
Topics interface{} `json:"topics"`
}
if err = json.Unmarshal(b, &obj); err != nil {
return shared.NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return shared.NewInsufficientParamsError(len(obj), 1)
}
// args.Earliest, err = toNumber(obj[0].ToBlock)
// if err != nil {
// return shared.NewDecodeParamError(fmt.Sprintf("FromBlock %v", err))
// }
// args.Latest, err = toNumber(obj[0].FromBlock)
// if err != nil {
// return shared.NewDecodeParamError(fmt.Sprintf("ToBlock %v", err))
var num int64
var numBig *big.Int
// if blank then latest
if obj[0].FromBlock == nil {
num = -1
} else {
if err := blockHeight(obj[0].FromBlock, &num); err != nil {
return err
}
}
// if -2 or other "silly" number, use latest
if num < 0 {
args.Earliest = -1 //latest block
} else {
args.Earliest = num
}
// if blank than latest
if obj[0].ToBlock == nil {
num = -1
} else {
if err := blockHeight(obj[0].ToBlock, &num); err != nil {
return err
}
}
args.Latest = num
if obj[0].Limit == nil {
numBig = big.NewInt(defaultLogLimit)
} else {
if numBig, err = numString(obj[0].Limit); err != nil {
return err
}
}
args.Max = int(numBig.Int64())
if obj[0].Offset == nil {
numBig = big.NewInt(defaultLogOffset)
} else {
if numBig, err = numString(obj[0].Offset); err != nil {
return err
}
}
args.Skip = int(numBig.Int64())
if obj[0].Address != nil {
marg, ok := obj[0].Address.([]interface{})
if ok {
v := make([]string, len(marg))
for i, arg := range marg {
argstr, ok := arg.(string)
if !ok {
return shared.NewInvalidTypeError(fmt.Sprintf("address[%d]", i), "is not a string")
}
v[i] = argstr
}
args.Address = v
} else {
argstr, ok := obj[0].Address.(string)
if ok {
v := make([]string, 1)
v[0] = argstr
args.Address = v
} else {
return shared.NewInvalidTypeError("address", "is not a string or array")
}
}
}
if obj[0].Topics != nil {
other, ok := obj[0].Topics.([]interface{})
if ok {
topicdbl := make([][]string, len(other))
for i, iv := range other {
if argstr, ok := iv.(string); ok {
// Found a string, push into first element of array
topicsgl := make([]string, 1)
topicsgl[0] = argstr
topicdbl[i] = topicsgl
} else if argarray, ok := iv.([]interface{}); ok {
// Found an array of other
topicdbl[i] = make([]string, len(argarray))
for j, jv := range argarray {
if v, ok := jv.(string); ok {
topicdbl[i][j] = v
} else if jv == nil {
topicdbl[i][j] = ""
} else {
return shared.NewInvalidTypeError(fmt.Sprintf("topic[%d][%d]", i, j), "is not a string")
}
}
} else if iv == nil {
topicdbl[i] = []string{""}
} else {
return shared.NewInvalidTypeError(fmt.Sprintf("topic[%d]", i), "not a string or array")
}
}
args.Topics = topicdbl
return nil
} else {
return shared.NewInvalidTypeError("topic", "is not a string or array")
}
}
return nil
}
type FilterIdArgs struct {
Id int
}
func (args *FilterIdArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return shared.NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return shared.NewInsufficientParamsError(len(obj), 1)
}
var num *big.Int
if num, err = numString(obj[0]); err != nil {
return err
}
args.Id = int(num.Int64())
return nil
}
type LogRes struct {
Address *hexdata `json:"address"`
Topics []*hexdata `json:"topics"`
Data *hexdata `json:"data"`
BlockNumber *hexnum `json:"blockNumber"`
LogIndex *hexnum `json:"logIndex"`
BlockHash *hexdata `json:"blockHash"`
TransactionHash *hexdata `json:"transactionHash"`
TransactionIndex *hexnum `json:"transactionIndex"`
}
func NewLogRes(log *state.Log) LogRes {
var l LogRes
l.Topics = make([]*hexdata, len(log.Topics))
for j, topic := range log.Topics {
l.Topics[j] = newHexData(topic)
}
l.Address = newHexData(log.Address)
l.Data = newHexData(log.Data)
l.BlockNumber = newHexNum(log.Number)
l.LogIndex = newHexNum(log.Index)
l.TransactionHash = newHexData(log.TxHash)
l.TransactionIndex = newHexNum(log.TxIndex)
l.BlockHash = newHexData(log.BlockHash)
return l
}
func NewLogsRes(logs state.Logs) (ls []LogRes) {
ls = make([]LogRes, len(logs))
for i, log := range logs {
ls[i] = NewLogRes(log)
}
return
}
func NewHashesRes(hs []common.Hash) []string {
hashes := make([]string, len(hs))
for i, hash := range hs {
hashes[i] = hash.Hex()
}
return hashes
}
type SubmitWorkArgs struct {
Nonce uint64
Header string
Digest string
}
func (args *SubmitWorkArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
if err = json.Unmarshal(b, &obj); err != nil {
return shared.NewDecodeParamError(err.Error())
}
if len(obj) < 3 {
return shared.NewInsufficientParamsError(len(obj), 3)
}
var objstr string
var ok bool
if objstr, ok = obj[0].(string); !ok {
return shared.NewInvalidTypeError("nonce", "not a string")
}
args.Nonce = common.String2Big(objstr).Uint64()
if objstr, ok = obj[1].(string); !ok {
return shared.NewInvalidTypeError("header", "not a string")
}
args.Header = objstr
if objstr, ok = obj[2].(string); !ok {
return shared.NewInvalidTypeError("digest", "not a string")
}
args.Digest = objstr
return nil
}
type tx struct {
tx *types.Transaction
To string
From string
Nonce string
Value string
Data string
GasLimit string
GasPrice string
}
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.Amount.String(),
Nonce: strconv.Itoa(int(t.Nonce())),
Data: "0x" + common.Bytes2Hex(t.Data()),
GasLimit: t.GasLimit.String(),
GasPrice: t.GasPrice().String(),
}
}
type ResendArgs struct {
Tx *tx
GasPrice string
GasLimit string
}
func (tx *tx) UnmarshalJSON(b []byte) (err error) {
var fields map[string]interface{}
if err := json.Unmarshal(b, &fields); err != nil {
return shared.NewDecodeParamError(err.Error())
}
trans := new(types.Transaction)
if val, found := fields["To"]; found {
if strVal, ok := val.(string); ok && len(strVal) > 0 {
tx.To = strVal
to := common.StringToAddress(strVal)
trans.Recipient = &to
}
}
if val, found := fields["From"]; found {
if strVal, ok := val.(string); ok {
tx.From = strVal
}
}
if val, found := fields["Nonce"]; found {
if strVal, ok := val.(string); ok {
tx.Nonce = strVal
if trans.AccountNonce, err = strconv.ParseUint(strVal, 10, 64); err != nil {
return shared.NewDecodeParamError(fmt.Sprintf("Unable to decode tx.Nonce - %v", err))
}
}
}
var parseOk bool
if val, found := fields["Value"]; found {
if strVal, ok := val.(string); ok {
tx.Value = strVal
if trans.Amount, parseOk = new(big.Int).SetString(strVal, 0); !parseOk {
return shared.NewDecodeParamError(fmt.Sprintf("Unable to decode tx.Amount - %v", err))
}
}
}
if val, found := fields["Data"]; found {
if strVal, ok := val.(string); ok {
tx.Data = strVal
if strings.HasPrefix(strVal, "0x") {
trans.Payload = common.Hex2Bytes(strVal[2:])
} else {
trans.Payload = common.Hex2Bytes(strVal)
}
}
}
if val, found := fields["GasLimit"]; found {
if strVal, ok := val.(string); ok {
tx.GasLimit = strVal
if trans.GasLimit, parseOk = new(big.Int).SetString(strVal, 0); !parseOk {
return shared.NewDecodeParamError(fmt.Sprintf("Unable to decode tx.GasLimit - %v", err))
}
}
}
if val, found := fields["GasPrice"]; found {
if strVal, ok := val.(string); ok {
tx.GasPrice = strVal
if trans.Price, parseOk = new(big.Int).SetString(strVal, 0); !parseOk {
return shared.NewDecodeParamError(fmt.Sprintf("Unable to decode tx.GasPrice - %v", err))
}
}
}
tx.tx = trans
return nil
}
func (args *ResendArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
if err = json.Unmarshal(b, &obj); err != nil {
return shared.NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return shared.NewInsufficientParamsError(len(obj), 1)
}
data, err := json.Marshal(obj[0])
if err != nil {
return shared.NewDecodeParamError("Unable to parse transaction object")
}
trans := new(tx)
err = json.Unmarshal(data, trans)
if err != nil {
return shared.NewDecodeParamError("Unable to parse transaction object")
}
if trans == nil || trans.tx == nil {
return shared.NewDecodeParamError("Unable to parse transaction object")
}
gasLimit, gasPrice := trans.GasLimit, trans.GasPrice
if len(obj) > 1 && obj[1] != nil {
if gp, ok := obj[1].(string); ok {
gasPrice = gp
} else {
return shared.NewInvalidTypeError("gasPrice", "not a string")
}
}
if len(obj) > 2 && obj[2] != nil {
if gl, ok := obj[2].(string); ok {
gasLimit = gl
} else {
return shared.NewInvalidTypeError("gasLimit", "not a string")
}
}
args.Tx = trans
args.GasPrice = gasPrice
args.GasLimit = gasLimit
return nil
}
