plugeth/rpc/args.go

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package rpc
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import (
"encoding/json"
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"fmt"
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"math/big"
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"github.com/ethereum/go-ethereum/common"
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)
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const (
defaultLogLimit = 100
defaultLogOffset = 0
)
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 {
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// Parse as integer
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num, ok := raw.(float64)
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if ok {
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*number = int64(num)
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return nil
}
// Parse as string/hexstring
str, ok := raw.(string)
if !ok {
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return NewInvalidTypeError("", "not a number or string")
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}
switch str {
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case "earliest":
*number = 0
case "latest":
*number = -1
case "pending":
*number = -2
default:
if common.HasHexPrefix(str) {
*number = common.String2Big(str).Int64()
} else {
return NewInvalidTypeError("blockNumber", "is not a valid string")
}
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}
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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
}
// func toNumber(v interface{}) (int64, error) {
// var str string
// if v != nil {
// var ok bool
// str, ok = v.(string)
// if !ok {
// return 0, errors.New("is not a string or undefined")
// }
// } else {
// str = "latest"
// }
// switch str {
// case "latest":
// return -1, nil
// default:
// return int64(common.Big(v.(string)).Int64()), nil
// }
// }
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// func hashString(raw interface{}, hash *string) error {
// argstr, ok := raw.(string)
// if !ok {
// return NewInvalidTypeError("", "not a string")
// }
// v := common.IsHex(argstr)
// hash = &argstr
// return nil
// }
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type GetBlockByHashArgs struct {
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BlockHash string
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IncludeTxs bool
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}
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func (args *GetBlockByHashArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
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if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
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}
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if len(obj) < 2 {
return NewInsufficientParamsError(len(obj), 2)
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}
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argstr, ok := obj[0].(string)
if !ok {
return NewInvalidTypeError("blockHash", "not a string")
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}
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args.BlockHash = argstr
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args.IncludeTxs = obj[1].(bool)
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return nil
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}
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type GetBlockByNumberArgs struct {
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BlockNumber int64
IncludeTxs bool
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}
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func (args *GetBlockByNumberArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
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if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
}
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if len(obj) < 2 {
return NewInsufficientParamsError(len(obj), 2)
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}
if v, ok := obj[0].(float64); ok {
args.BlockNumber = int64(v)
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} else if v, ok := obj[0].(string); ok {
args.BlockNumber = common.Big(v).Int64()
} else {
return NewInvalidTypeError("blockNumber", "not a number or string")
}
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args.IncludeTxs = obj[1].(bool)
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return nil
}
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type NewTxArgs struct {
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From string
To string
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Value *big.Int
Gas *big.Int
GasPrice *big.Int
Data string
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BlockNumber int64
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}
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func (args *NewTxArgs) UnmarshalJSON(b []byte) (err error) {
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var obj []json.RawMessage
var ext struct {
From string
To string
Value interface{}
Gas interface{}
GasPrice interface{}
Data string
}
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// Decode byte slice to array of RawMessages
if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
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}
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// 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())
}
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if len(ext.From) == 0 {
return NewValidationError("from", "is required")
}
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args.From = ext.From
args.To = ext.To
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args.Data = ext.Data
var num int64
if ext.Value == nil {
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num = 0
} else {
if err := numString(ext.Value, &num); err != nil {
return err
}
}
args.Value = big.NewInt(num)
if ext.Gas == nil {
num = 0
} else {
if err := numString(ext.Gas, &num); err != nil {
return err
}
}
args.Gas = big.NewInt(num)
if ext.GasPrice == nil {
num = 0
} else {
if err := numString(ext.GasPrice, &num); err != nil {
return err
}
}
args.GasPrice = big.NewInt(num)
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// Check for optional BlockNumber param
if len(obj) > 1 {
if err := blockHeightFromJson(obj[1], &args.BlockNumber); err != nil {
return err
}
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} else {
args.BlockNumber = -1
}
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 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())
}
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args.From = ext.From
if len(ext.To) == 0 {
return NewValidationError("to", "is required")
}
args.To = ext.To
var num int64
if ext.Value == nil {
num = int64(0)
} else {
if err := numString(ext.Value, &num); err != nil {
return err
}
}
args.Value = big.NewInt(num)
if ext.Gas == nil {
num = int64(0)
} else {
if err := numString(ext.Gas, &num); err != nil {
return err
}
}
args.Gas = big.NewInt(num)
if ext.GasPrice == nil {
num = int64(0)
} else {
if err := numString(ext.GasPrice, &num); err != nil {
return err
}
}
args.GasPrice = big.NewInt(num)
args.Data = ext.Data
// Check for optional BlockNumber param
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if len(obj) > 1 {
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if err := blockHeightFromJson(obj[1], &args.BlockNumber); err != nil {
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return err
}
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} else {
args.BlockNumber = -1
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}
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return nil
}
type GetStorageArgs struct {
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Address string
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BlockNumber int64
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}
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func (args *GetStorageArgs) UnmarshalJSON(b []byte) (err error) {
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var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
}
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if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
addstr, ok := obj[0].(string)
if !ok {
return NewInvalidTypeError("address", "not a string")
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}
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args.Address = addstr
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if len(obj) > 1 {
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if err := blockHeight(obj[1], &args.BlockNumber); err != nil {
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return err
}
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} else {
args.BlockNumber = -1
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}
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return nil
}
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type GetStorageAtArgs struct {
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Address string
Key string
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BlockNumber int64
}
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func (args *GetStorageAtArgs) UnmarshalJSON(b []byte) (err error) {
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var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
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}
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if len(obj) < 2 {
return NewInsufficientParamsError(len(obj), 2)
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}
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addstr, ok := obj[0].(string)
if !ok {
return NewInvalidTypeError("address", "not a string")
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}
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args.Address = addstr
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keystr, ok := obj[1].(string)
if !ok {
return NewInvalidTypeError("key", "not a string")
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}
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args.Key = keystr
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if len(obj) > 2 {
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if err := blockHeight(obj[2], &args.BlockNumber); err != nil {
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return err
}
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} else {
args.BlockNumber = -1
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}
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return nil
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}
type GetTxCountArgs struct {
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Address string
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BlockNumber int64
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}
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func (args *GetTxCountArgs) UnmarshalJSON(b []byte) (err error) {
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var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
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}
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if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
addstr, ok := obj[0].(string)
if !ok {
return NewInvalidTypeError("address", "not a string")
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}
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args.Address = addstr
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if len(obj) > 1 {
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if err := blockHeight(obj[1], &args.BlockNumber); err != nil {
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return err
}
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} else {
args.BlockNumber = -1
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}
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return nil
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}
type GetBalanceArgs struct {
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Address string
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BlockNumber int64
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}
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func (args *GetBalanceArgs) UnmarshalJSON(b []byte) (err error) {
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var obj []interface{}
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if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
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}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
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}
addstr, ok := obj[0].(string)
if !ok {
return NewInvalidTypeError("address", "not a string")
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}
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args.Address = addstr
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if len(obj) > 1 {
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if err := blockHeight(obj[1], &args.BlockNumber); err != nil {
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return err
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}
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} else {
args.BlockNumber = -1
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}
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return nil
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}
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type GetDataArgs struct {
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Address string
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BlockNumber int64
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}
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func (args *GetDataArgs) UnmarshalJSON(b []byte) (err error) {
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var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
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}
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if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
addstr, ok := obj[0].(string)
if !ok {
return NewInvalidTypeError("address", "not a string")
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}
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args.Address = addstr
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if len(obj) > 1 {
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if err := blockHeight(obj[1], &args.BlockNumber); err != nil {
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return err
}
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} else {
args.BlockNumber = -1
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}
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return nil
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}
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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 NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
if err := blockHeight(obj[0], &args.BlockNumber); err != nil {
return err
}
return nil
}
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type BlockNumIndexArgs struct {
BlockNumber int64
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Index int64
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}
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func (args *BlockNumIndexArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
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if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
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}
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if len(obj) < 2 {
return NewInsufficientParamsError(len(obj), 2)
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}
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if err := blockHeight(obj[0], &args.BlockNumber); err != nil {
return err
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}
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arg1, ok := obj[1].(string)
if !ok {
return NewInvalidTypeError("index", "not a string")
}
args.Index = common.Big(arg1).Int64()
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 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")
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}
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args.Hash = arg0
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return nil
}
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type HashIndexArgs struct {
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Hash string
Index int64
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}
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func (args *HashIndexArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
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if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
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}
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if len(obj) < 2 {
return NewInsufficientParamsError(len(obj), 2)
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}
arg0, ok := obj[0].(string)
if !ok {
return NewInvalidTypeError("hash", "not a string")
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}
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args.Hash = arg0
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arg1, ok := obj[1].(string)
if !ok {
return NewInvalidTypeError("index", "not a string")
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}
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args.Index = common.Big(arg1).Int64()
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return nil
}
type Sha3Args struct {
Data string
}
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func (args *Sha3Args) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
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if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
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}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
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}
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argstr, ok := obj[0].(string)
if !ok {
return NewInvalidTypeError("data", "is not a string")
}
args.Data = argstr
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return nil
}
type BlockFilterArgs struct {
Earliest int64
Latest int64
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Address []string
Topics [][]string
Skip int
Max int
}
func (args *BlockFilterArgs) UnmarshalJSON(b []byte) (err error) {
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var obj []struct {
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FromBlock interface{} `json:"fromBlock"`
ToBlock interface{} `json:"toBlock"`
Limit interface{} `json:"limit"`
Offset interface{} `json:"offset"`
Address interface{} `json:"address"`
Topics interface{} `json:"topics"`
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}
if err = json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
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}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
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}
// args.Earliest, err = toNumber(obj[0].ToBlock)
// if err != nil {
// return NewDecodeParamError(fmt.Sprintf("FromBlock %v", err))
// }
// args.Latest, err = toNumber(obj[0].FromBlock)
// if err != nil {
// return NewDecodeParamError(fmt.Sprintf("ToBlock %v", err))
var num int64
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// if blank then latest
if obj[0].FromBlock == nil {
num = -1
} else {
if err := blockHeight(obj[0].FromBlock, &num); err != nil {
return err
}
}
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// if -2 or other "silly" number, use latest
if num < 0 {
args.Earliest = -1 //latest block
} else {
args.Earliest = num
}
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// if blank than latest
if obj[0].ToBlock == nil {
num = -1
} else {
if err := blockHeight(obj[0].ToBlock, &num); err != nil {
return err
}
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}
args.Latest = num
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if obj[0].Limit == nil {
num = defaultLogLimit
} else {
if err := numString(obj[0].Limit, &num); err != nil {
return err
}
}
args.Max = int(num)
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if obj[0].Offset == nil {
num = defaultLogOffset
} else {
if err := numString(obj[0].Offset, &num); err != nil {
return err
}
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}
args.Skip = int(num)
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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 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 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 {
return NewInvalidTypeError(fmt.Sprintf("topic[%d][%d]", i, j), "is not a string")
}
}
} else {
return NewInvalidTypeError(fmt.Sprintf("topic[%d]", i), "not a string or array")
}
}
args.Topics = topicdbl
return nil
} else {
return NewInvalidTypeError("topic", "is not a string or array")
}
}
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return nil
}
type DbArgs struct {
Database string
Key string
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Value []byte
}
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func (args *DbArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
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if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
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}
if len(obj) < 2 {
return NewInsufficientParamsError(len(obj), 2)
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}
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var objstr string
var ok bool
if objstr, ok = obj[0].(string); !ok {
return NewInvalidTypeError("database", "not a string")
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}
args.Database = objstr
if objstr, ok = obj[1].(string); !ok {
return NewInvalidTypeError("key", "not a string")
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}
args.Key = objstr
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if len(obj) > 2 {
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objstr, ok = obj[2].(string)
if !ok {
return NewInvalidTypeError("value", "not a string")
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}
args.Value = []byte(objstr)
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}
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
}
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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")
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}
args.Database = objstr
if objstr, ok = obj[1].(string); !ok {
return NewInvalidTypeError("key", "not a string")
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}
args.Key = objstr
if len(obj) > 2 {
objstr, ok = obj[2].(string)
if !ok {
return NewInvalidTypeError("value", "not a string")
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}
args.Value = common.FromHex(objstr)
}
return nil
}
func (a *DbHexArgs) requirements() error {
if len(a.Database) == 0 {
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return NewValidationError("Database", "cannot be blank")
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}
if len(a.Key) == 0 {
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return NewValidationError("Key", "cannot be blank")
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}
return nil
}
type WhisperMessageArgs struct {
Payload string
To string
From string
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Topics []string
Priority uint32
Ttl uint32
}
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func (args *WhisperMessageArgs) UnmarshalJSON(b []byte) (err error) {
var obj []struct {
Payload string
To string
From string
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Topics []string
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Priority interface{}
Ttl interface{}
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}
if err = json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
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}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
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}
args.Payload = obj[0].Payload
args.To = obj[0].To
args.From = obj[0].From
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args.Topics = obj[0].Topics
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var num int64
if err := numString(obj[0].Priority, &num); err != nil {
return err
}
args.Priority = uint32(num)
if err := numString(obj[0].Ttl, &num); err != nil {
return err
}
args.Ttl = uint32(num)
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return nil
}
type CompileArgs struct {
Source string
}
func (args *CompileArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
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if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
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}
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if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
argstr, ok := obj[0].(string)
if !ok {
return NewInvalidTypeError("arg0", "is not a string")
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}
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args.Source = argstr
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return nil
}
type FilterStringArgs struct {
Word string
}
func (args *FilterStringArgs) UnmarshalJSON(b []byte) (err error) {
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var obj []interface{}
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if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
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}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
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}
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var argstr string
argstr, ok := obj[0].(string)
if !ok {
return NewInvalidTypeError("filter", "not a string")
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}
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switch argstr {
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case "latest", "pending":
break
default:
return NewValidationError("Word", "Must be `latest` or `pending`")
}
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args.Word = argstr
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return nil
}
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type FilterIdArgs struct {
Id int
}
func (args *FilterIdArgs) UnmarshalJSON(b []byte) (err error) {
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var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
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}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
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}
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var num int64
if err := numString(obj[0], &num); err != nil {
return err
}
args.Id = int(num)
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return nil
}
type WhisperIdentityArgs struct {
Identity string
}
func (args *WhisperIdentityArgs) UnmarshalJSON(b []byte) (err error) {
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var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
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}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
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}
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argstr, ok := obj[0].(string)
if !ok {
return NewInvalidTypeError("arg0", "not a string")
}
// if !common.IsHex(argstr) {
// return NewValidationError("arg0", "not a hexstring")
// }
args.Identity = argstr
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return nil
}
type WhisperFilterArgs struct {
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To string `json:"to"`
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From string
Topics []string
}
func (args *WhisperFilterArgs) UnmarshalJSON(b []byte) (err error) {
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var obj []struct {
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To interface{}
Topics []interface{}
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}
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if err = json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
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}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
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}
if obj[0].To == nil {
args.To = ""
} else {
argstr, ok := obj[0].To.(string)
if !ok {
return NewInvalidTypeError("to", "is not a string")
}
args.To = argstr
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}
t := make([]string, len(obj[0].Topics))
for i, j := range obj[0].Topics {
argstr, ok := j.(string)
if !ok {
return NewInvalidTypeError("topics["+string(i)+"]", "is not a string")
}
t[i] = argstr
}
args.Topics = t
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return nil
}
type SubmitWorkArgs struct {
Nonce uint64
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Header string
Digest string
}
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")
}
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args.Nonce = common.String2Big(objstr).Uint64()
if objstr, ok = obj[1].(string); !ok {
return NewInvalidTypeError("header", "not a string")
}
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args.Header = objstr
if objstr, ok = obj[2].(string); !ok {
return NewInvalidTypeError("digest", "not a string")
}
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args.Digest = objstr
return nil
}