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clef: external signing fixes + signing data (#19003)

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* signer/clef: make use of json-rpc notification

* signer: tidy up output of OnApprovedTx

* accounts/external, signer: implement remote signing of text, make accounts_sign take hexdata

* clef: added basic testscript

* signer, external, api: add clique signing test to debug rpc, fix clique signing in clef

* signer: fix clique interoperability between geth and clef

* clef: rename networkid switch to chainid

* clef: enable chainid flag

* clef, signer: minor changes from review

* clef: more tests for signer
This commit is contained in:
Martin Holst Swende
2019-02-12 14:00:02 +01:00
committed by GitHub
parent edf976ee8e
commit 75d292bcf6
10 changed files with 240 additions and 73 deletions
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39
accounts/external/backend.go vendored
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@ -26,7 +26,6 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/internal/ethapi"
"github.com/ethereum/go-ethereum/log"
@ -154,13 +153,31 @@ func (api *ExternalSigner) signHash(account accounts.Account, hash []byte) ([]by
// SignData signs keccak256(data). The mimetype parameter describes the type of data being signed
func (api *ExternalSigner) SignData(account accounts.Account, mimeType string, data []byte) ([]byte, error) {
// TODO! Replace this with a call to clef SignData with correct mime-type for Clique, once we
// have that in place
return api.signHash(account, crypto.Keccak256(data))
var res hexutil.Bytes
var signAddress = common.NewMixedcaseAddress(account.Address)
if err := api.client.Call(&res, "account_signData",
mimeType,
&signAddress, // Need to use the pointer here, because of how MarshalJSON is defined
hexutil.Encode(data)); err != nil {
return nil, err
}
// If V is on 27/28-form, convert to to 0/1 for Clique
if mimeType == accounts.MimetypeClique && (res[64] == 27 || res[64] == 28) {
res[64] -= 27 // Transform V from 27/28 to 0/1 for Clique use
}
return res, nil
}
func (api *ExternalSigner) SignText(account accounts.Account, text []byte) ([]byte, error) {
return api.signHash(account, accounts.TextHash(text))
var res hexutil.Bytes
var signAddress = common.NewMixedcaseAddress(account.Address)
if err := api.client.Call(&res, "account_signData",
accounts.MimetypeTextPlain,
&signAddress, // Need to use the pointer here, because of how MarshalJSON is defined
hexutil.Encode(text)); err != nil {
return nil, err
}
return res, nil
}
func (api *ExternalSigner) SignTx(account accounts.Account, tx *types.Transaction, chainID *big.Int) (*types.Transaction, error) {
@ -202,18 +219,6 @@ func (api *ExternalSigner) listAccounts() ([]common.Address, error) {
return res, nil
}
func (api *ExternalSigner) signCliqueBlock(a common.Address, rlpBlock hexutil.Bytes) (hexutil.Bytes, error) {
var sig hexutil.Bytes
if err := api.client.Call(&sig, "account_signData", core.ApplicationClique.Mime, a, rlpBlock); err != nil {
return nil, err
}
if sig[64] != 27 && sig[64] != 28 {
return nil, fmt.Errorf("invalid Ethereum signature (V is not 27 or 28)")
}
sig[64] -= 27 // Transform V from 27/28 to 0/1 for Clique use
return sig, nil
}
func (api *ExternalSigner) pingVersion() (string, error) {
var v string
if err := api.client.Call(&v, "account_version"); err != nil {