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accounts, cmd, contracts, les: integrate clef for transaction signing (#19783)

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* accounts, cmd, contracts, les: integrate clef for transaction signing

* accounts, cmd/checkpoint-admin, signer/core: minor fixups
This commit is contained in:
gary rong
2019-07-04 03:54:59 +08:00
committed by Péter Szilágyi
parent 59a3198382
commit 6814797173
8 changed files with 61 additions and 120 deletions
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17
accounts/abi/bind/auth.go
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@ -23,6 +23,7 @@ import (
"io/ioutil"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/accounts/external"
"github.com/ethereum/go-ethereum/accounts/keystore"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
@ -43,7 +44,7 @@ func NewTransactor(keyin io.Reader, passphrase string) (*TransactOpts, error) {
return NewKeyedTransactor(key.PrivateKey), nil
}
// NewKeystoreTransactor is a utility method to easily create a transaction signer from
// NewKeyStoreTransactor is a utility method to easily create a transaction signer from
// an decrypted key from a keystore
func NewKeyStoreTransactor(keystore *keystore.KeyStore, account accounts.Account) (*TransactOpts, error) {
return &TransactOpts{
@ -79,3 +80,17 @@ func NewKeyedTransactor(key *ecdsa.PrivateKey) *TransactOpts {
},
}
}
// NewClefTransactor is a utility method to easily create a transaction signer
// with a clef backend.
func NewClefTransactor(clef *external.ExternalSigner, account accounts.Account) *TransactOpts {
return &TransactOpts{
From: account.Address,
Signer: func(signer types.Signer, address common.Address, transaction *types.Transaction) (*types.Transaction, error) {
if address != account.Address {
return nil, errors.New("not authorized to sign this account")
}
return clef.SignTx(account, transaction, nil) // Clef enforces its own chain id
},
}
}