/
native_param.go
254 lines (238 loc) · 7.82 KB
/
native_param.go
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/*
* Copyright (C) 2019 The onyxchain Authors
* This file is part of The onyxchain library.
*
* The onyxchain is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The onyxchain is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with The onyxchain. If not, see <http://www.gnu.org/licenses/>.
*/
package utils
import (
"bytes"
"encoding/hex"
"fmt"
"github.com/OnyxPay/OnyxChain/cmd/abi"
"github.com/OnyxPay/OnyxChain/common"
"github.com/OnyxPay/OnyxChain/core/types"
httpcom "github.com/OnyxPay/OnyxChain/http/base/common"
svrneovm "github.com/OnyxPay/OnyxChain/smartcontract/service/neovm"
"github.com/OnyxPay/OnyxChain/vm/neovm"
"math"
"math/big"
"strconv"
"strings"
)
func NewNativeInvokeTransaction(gasPrice, gasLimit uint64, contractAddr common.Address, version byte,
params []interface{}, funcAbi *abi.NativeContractFunctionAbi) (*types.MutableTransaction, error) {
builder := neovm.NewParamsBuilder(new(bytes.Buffer))
err := ParseNativeFuncParam(builder, funcAbi.Name, params, funcAbi.Parameters)
if err != nil {
return nil, err
}
builder.EmitPushByteArray([]byte(funcAbi.Name))
builder.EmitPushByteArray(contractAddr[:])
builder.EmitPushInteger(new(big.Int).SetInt64(int64(version)))
builder.Emit(neovm.SYSCALL)
builder.EmitPushByteArray([]byte(svrneovm.NATIVE_INVOKE_NAME))
invokeCode := builder.ToArray()
return httpcom.NewSmartContractTransaction(gasPrice, gasLimit, invokeCode)
}
func ParseNativeFuncParam(builder *neovm.ParamsBuilder, funName string, params []interface{}, paramsAbi []*abi.NativeContractParamAbi) error {
size := len(paramsAbi)
if size == 0 {
//Params cannot empty, if params is empty, fulfil with func name
params = []interface{}{funName}
paramsAbi = []*abi.NativeContractParamAbi{{
Name: "funcName",
Type: abi.NATIVE_PARAM_TYPE_STRING,
}}
} else if size > 1 {
//If more than one param in func, must using struct
paramRoot := &abi.NativeContractParamAbi{
Name: "root",
Type: abi.NATIVE_PARAM_TYPE_STRUCT,
SubType: paramsAbi,
}
params = []interface{}{params}
paramsAbi = []*abi.NativeContractParamAbi{paramRoot}
}
return ParseNativeParams(builder, params, paramsAbi)
}
func ParseNativeParams(builder *neovm.ParamsBuilder, params []interface{}, paramsAbi []*abi.NativeContractParamAbi) error {
if len(params) != len(paramsAbi) {
return fmt.Errorf("abi unmatch")
}
var err error
for i, param := range params {
paramAbi := paramsAbi[i]
switch strings.ToLower(paramAbi.Type) {
case abi.NATIVE_PARAM_TYPE_STRUCT:
err = ParseNativeParamStruct(builder, param, paramAbi)
if err != nil {
return fmt.Errorf("param:%s parse:%v error:%s", paramAbi.Name, param, err)
}
case abi.NATIVE_PARAM_TYPE_ARRAY:
err = ParseNativeParamArray(builder, param, paramAbi)
default:
rawParam, ok := param.(string)
if !ok {
return fmt.Errorf("param:%v assert to string failed", param)
}
rawParam = strings.TrimSpace(rawParam)
switch strings.ToLower(paramAbi.Type) {
case abi.NATIVE_PARAM_TYPE_ADDRESS:
err = ParseNativeParamAddress(builder, rawParam)
case abi.NATIVE_PARAM_TYPE_BOOL:
err = ParseNativeParamBool(builder, rawParam)
case abi.NATIVE_PARAM_TYPE_BYTE:
err = ParseNativeParamByte(builder, rawParam)
case abi.NATIVE_PARAM_TYPE_BYTEARRAY:
err = ParseNativeParamByteArray(builder, rawParam)
case abi.NATIVE_PARAM_TYPE_INTEGER:
err = ParseNativeParamInteger(builder, rawParam)
case abi.NATIVE_PARAM_TYPE_STRING:
err = ParseNativeParamString(builder, rawParam)
case abi.NATIVE_PARAM_TYPE_UINT256:
err = ParseNativeParamUint256(builder, rawParam)
default:
return fmt.Errorf("unknown param type:%s", paramAbi.Type)
}
}
if err != nil {
return fmt.Errorf("param:%s parse:%v error:%s", paramAbi.Name, param, err)
}
}
return nil
}
func ParseNativeParamStruct(builder *neovm.ParamsBuilder, param interface{}, structAbi *abi.NativeContractParamAbi) error {
params, ok := param.([]interface{})
if !ok {
return fmt.Errorf("assert to []interface{} failed")
}
if len(params) != len(structAbi.SubType) {
return fmt.Errorf("struct abi not match")
}
builder.EmitPushInteger(big.NewInt(0))
builder.Emit(neovm.NEWSTRUCT)
builder.Emit(neovm.TOALTSTACK)
for i, param := range params {
builder.Emit(neovm.DUPFROMALTSTACK)
paramAbi := structAbi.SubType[i]
err := ParseNativeParams(builder, []interface{}{param}, []*abi.NativeContractParamAbi{paramAbi})
if err != nil {
return fmt.Errorf("params struct:%s item:%s error:%s", structAbi.Name, paramAbi.Name, err)
}
builder.Emit(neovm.APPEND)
}
builder.Emit(neovm.FROMALTSTACK)
return nil
}
func ParseNativeParamArray(builder *neovm.ParamsBuilder, param interface{}, arrayAbi *abi.NativeContractParamAbi) error {
params, ok := param.([]interface{})
if !ok {
return fmt.Errorf("assert to []interface{} failed")
}
abis := make([]*abi.NativeContractParamAbi, 0, len(params))
for i := 0; i < len(params); i++ {
abis = append(abis, &abi.NativeContractParamAbi{
Name: fmt.Sprintf("%s_%d", arrayAbi.Name, i),
Type: arrayAbi.SubType[0].Type,
SubType: arrayAbi.SubType[0].SubType,
})
}
err := ParseNativeParams(builder, params, abis)
if err != nil {
return fmt.Errorf("parse array error:%s", err)
}
builder.EmitPushInteger(big.NewInt(int64(len(params))))
builder.Emit(neovm.PACK)
return nil
}
func ParseNativeParamByte(builder *neovm.ParamsBuilder, param string) error {
if param == "" {
return fmt.Errorf("invalid byte")
}
i, err := strconv.ParseInt(param, 10, 32)
if err != nil {
return fmt.Errorf("parse int error:%s", err)
}
if i > math.MaxUint8 || i < 0 {
return fmt.Errorf("invalid byte value")
}
builder.EmitPushInteger(new(big.Int).SetInt64(i))
return nil
}
func ParseNativeParamByteArray(builder *neovm.ParamsBuilder, param string) error {
data, err := hex.DecodeString(param)
if err != nil {
return fmt.Errorf("hex decode string error:%s", err)
}
builder.EmitPushByteArray(data)
return nil
}
func ParseNativeParamUint256(builder *neovm.ParamsBuilder, param string) error {
if param == "" {
return fmt.Errorf("invalid uint256")
}
uint256, err := common.Uint256FromHexString(param)
if err != nil {
return fmt.Errorf("invalid uint256")
}
builder.EmitPushByteArray(uint256.ToArray())
return nil
}
func ParseNativeParamString(builder *neovm.ParamsBuilder, param string) error {
builder.EmitPushByteArray([]byte(param))
return nil
}
func ParseNativeParamInteger(builder *neovm.ParamsBuilder, param string) error {
if param == "" {
return fmt.Errorf("invalid integer")
}
i, err := strconv.ParseInt(param, 10, 64)
if err != nil {
return fmt.Errorf("parse int error:%s", err)
}
builder.EmitPushInteger(new(big.Int).SetInt64(i))
return nil
}
func ParseNativeParamBool(builder *neovm.ParamsBuilder, param string) error {
var b bool
switch strings.ToLower(param) {
case "true":
b = true
case "false":
b = false
default:
return fmt.Errorf("invalid bool value")
}
builder.EmitPushBool(b)
return nil
}
func ParseNativeParamAddress(builder *neovm.ParamsBuilder, param string) error {
if param == "" {
return fmt.Errorf("invalid address")
}
var addr common.Address
var err error
//Maybe param is a contract address
addr, err = common.AddressFromHexString(param)
if err != nil {
//Maybe param is a account address
addr, err = common.AddressFromBase58(param)
if err != nil {
return fmt.Errorf("invalid address")
}
}
builder.EmitPushByteArray(addr[:])
return nil
}