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user_op.go
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user_op.go
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package tbsdk
import (
"crypto/ecdsa"
"encoding/hex"
"fmt"
"math/big"
"github.com/ethereum/go-ethereum/common"
)
type OperationBuilder struct {
Operation UserOp
}
func NewOperationBuilder() *OperationBuilder {
return &OperationBuilder{
Operation: UserOp{},
}
}
func (ob *OperationBuilder) Sender(sender *common.Address) *OperationBuilder {
ob.Operation.Sender = sender
return ob
}
func (ob *OperationBuilder) Nonce(nonce *big.Int) *OperationBuilder {
ob.Operation.Nonce = nonce
return ob
}
func (ob *OperationBuilder) Factory(factory *common.Address) *OperationBuilder {
ob.Operation.Factory = factory
return ob
}
func (ob *OperationBuilder) FactoryData(factoryCallData []byte) *OperationBuilder {
ob.Operation.FactoryData = factoryCallData
return ob
}
func (ob *OperationBuilder) FactoryAndData(factory *common.Address, factoryCallData []byte) *OperationBuilder {
return ob.Factory(factory).FactoryData(factoryCallData)
}
func (ob *OperationBuilder) CallData(callData []byte) *OperationBuilder {
ob.Operation.CallData = callData
return ob
}
func (ob *OperationBuilder) CallGasLimit(callGasLimit *big.Int) *OperationBuilder {
ob.Operation.CallGasLimit = callGasLimit
return ob
}
func (ob *OperationBuilder) VerificationGasLimit(verificationGasLimit *big.Int) *OperationBuilder {
ob.Operation.VerificationGasLimit = verificationGasLimit
return ob
}
func (ob *OperationBuilder) PreVerificationGas(preVerificationGas *big.Int) *OperationBuilder {
ob.Operation.PreVerificationGas = preVerificationGas
return ob
}
func (ob *OperationBuilder) MaxFeePerGas(maxFeePerGas *big.Int) *OperationBuilder {
ob.Operation.MaxFeePerGas = maxFeePerGas
return ob
}
func (ob *OperationBuilder) MaxPriorityFeePerGas(maxPriorityFeePerGas *big.Int) *OperationBuilder {
ob.Operation.MaxPriorityFeePerGas = maxPriorityFeePerGas
return ob
}
func (ob *OperationBuilder) Paymaster(paymaster *common.Address) *OperationBuilder {
ob.Operation.Paymaster = paymaster
return ob
}
func (ob *OperationBuilder) PaymasterVerificationGasLimit(paymasterVerificationGasLimit *big.Int) *OperationBuilder {
ob.Operation.PaymasterVerificationGasLimit = paymasterVerificationGasLimit
return ob
}
func (ob *OperationBuilder) PaymasterPostOpGasLimit(paymasterPostOpGasLimit *big.Int) *OperationBuilder {
ob.Operation.PaymasterPostOpGasLimit = paymasterPostOpGasLimit
return ob
}
func (ob *OperationBuilder) PaymasterData(paymasterCallData []byte) *OperationBuilder {
ob.Operation.PaymasterData = paymasterCallData
return ob
}
func (ob *OperationBuilder) PaymasterAndData(paymaster *common.Address, paymasterCallData []byte) *OperationBuilder {
return ob.Paymaster(paymaster).PaymasterData(paymasterCallData)
}
func (ob *OperationBuilder) Signature(sig string) *OperationBuilder {
ob.Operation.Signature = sig
return ob
}
func (ob *OperationBuilder) Adapt(adapter Adapter, val interface{}, args ...interface{}) string {
return adapter(val, args)
}
func (ob *OperationBuilder) Build() *PackedUserOp {
initCode := ob.Adapt(ADDRESS_PACKED_DATA_ADAPTER, ob.Operation.Factory, ob.Operation.FactoryData)
paymasterAndData := ob.Adapt(ADDRESS_PACKED_DATA_ADAPTER, ob.Operation.Paymaster, ob.Operation.PaymasterData)
packedOp := &PackedUserOp{
Sender: ob.Adapt(ADDRESS_ADAPTER, ob.Operation.Sender),
Nonce: ob.Adapt(BIG_INT_ADAPTER, ob.Operation.Nonce), // fixme
InitCode: initCode,
CallData: ob.Adapt(PACKED_DATA_ADAPTER, ob.Operation.CallData),
CallGasLimit: ob.Adapt(BIG_INT_ADAPTER, ob.Operation.CallGasLimit),
VerificationGasLimit: ob.Adapt(BIG_INT_ADAPTER, ob.Operation.VerificationGasLimit),
PreVerificationGas: ob.Adapt(BIG_INT_ADAPTER, ob.Operation.PreVerificationGas),
MaxFeePerGas: ob.Adapt(BIG_INT_ADAPTER, ob.Operation.MaxFeePerGas),
MaxPriorityFeePerGas: ob.Adapt(BIG_INT_ADAPTER, ob.Operation.MaxPriorityFeePerGas),
PaymasterAndData: paymasterAndData,
Signature: ob.Operation.Signature,
}
return packedOp
}
func (ob *OperationBuilder) BuildWithOperationHash(chainId *big.Int, entryPoint common.Address) (*PackedUserOp, []byte, error) {
packedOp := ob.Build()
uoData, err := GetUserOperationHash(packedOp, chainId.Int64(), entryPoint)
if err != nil {
return nil, nil, fmt.Errorf("err operationHash : %v", err)
}
return packedOp, uoData, nil
}
func (ob *OperationBuilder) BuildWithSignature(chainId *big.Int, entryPoint common.Address, privKey *ecdsa.PrivateKey) (*PackedUserOp, error) {
if chainId == nil {
return nil, fmt.Errorf("chainId <nil>")
}
if privKey == nil {
return nil, fmt.Errorf("privKey <nil>")
}
packedOp, uoData, err := ob.BuildWithOperationHash(chainId, entryPoint)
if err != nil {
return nil, err
}
sig, err := SignDataWithEthereumPrivateKey(uoData, privKey)
if err != nil {
return nil, fmt.Errorf("failed to sign: %v", err)
}
packedOp.Signature = "0x" + hex.EncodeToString(sig)
return packedOp, nil
}
func SignUserOp() {
}