mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
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81 lines
2.8 KiB
Go
81 lines
2.8 KiB
Go
// Copyright 2016 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package bind
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import (
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"crypto/ecdsa"
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"errors"
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"math/big"
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"github.com/ledgerwatch/erigon/common"
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"github.com/ledgerwatch/erigon/core/types"
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"github.com/ledgerwatch/erigon/crypto"
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"github.com/ledgerwatch/log/v3"
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)
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// ErrNoChainID is returned whenever the user failed to specify a chain id.
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var ErrNoChainID = errors.New("no chain id specified")
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// ErrNotAuthorized is returned when an account is not properly unlocked.
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var ErrNotAuthorized = errors.New("not authorized to sign this account")
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// NewKeyedTransactor is a utility method to easily create a transaction signer
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// from a single private key.
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//
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// Deprecated: Use NewKeyedTransactorWithChainID instead.
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func NewKeyedTransactor(key *ecdsa.PrivateKey) *TransactOpts {
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log.Warn("WARNING: NewKeyedTransactor has been deprecated in favour of NewKeyedTransactorWithChainID")
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keyAddr := crypto.PubkeyToAddress(key.PublicKey)
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signer := types.LatestSignerForChainID(nil)
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return &TransactOpts{
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From: keyAddr,
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Signer: func(address common.Address, tx types.Transaction) (types.Transaction, error) {
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if address != keyAddr {
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return nil, ErrNotAuthorized
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}
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signature, err := crypto.Sign(tx.SigningHash(nil).Bytes(), key)
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if err != nil {
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return nil, err
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}
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return tx.WithSignature(*signer, signature)
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},
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}
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}
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// NewKeyedTransactorWithChainID is a utility method to easily create a transaction signer
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// from a single private key.
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func NewKeyedTransactorWithChainID(key *ecdsa.PrivateKey, chainID *big.Int) (*TransactOpts, error) {
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keyAddr := crypto.PubkeyToAddress(key.PublicKey)
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if chainID == nil {
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return nil, ErrNoChainID
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}
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signer := types.LatestSignerForChainID(chainID)
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return &TransactOpts{
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From: keyAddr,
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Signer: func(address common.Address, tx types.Transaction) (types.Transaction, error) {
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if address != keyAddr {
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return nil, ErrNotAuthorized
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}
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signature, err := crypto.Sign(tx.SigningHash(chainID).Bytes(), key)
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if err != nil {
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return nil, err
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}
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return tx.WithSignature(*signer, signature)
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},
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}, nil
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}
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