plugeth/signer/core/api_test.go
Guillaume Ballet b8ca3cb7d2 cmd/clef: enable smartcard hub (#19649)
* cmd/clef: Enable smartcard hub

* clef: don't error is pcsc is not installed
2019-06-05 15:27:37 +02:00

326 lines
8.9 KiB
Go

// Copyright 2018 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
//
package core_test
import (
"bytes"
"context"
"fmt"
"io/ioutil"
"math/big"
"os"
"path/filepath"
"testing"
"time"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/accounts/keystore"
"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/internal/ethapi"
"github.com/ethereum/go-ethereum/rlp"
"github.com/ethereum/go-ethereum/signer/core"
"github.com/ethereum/go-ethereum/signer/fourbyte"
"github.com/ethereum/go-ethereum/signer/storage"
)
//Used for testing
type headlessUi struct {
approveCh chan string // to send approve/deny
inputCh chan string // to send password
}
func (ui *headlessUi) OnInputRequired(info core.UserInputRequest) (core.UserInputResponse, error) {
input := <-ui.inputCh
return core.UserInputResponse{Text: input}, nil
}
func (ui *headlessUi) OnSignerStartup(info core.StartupInfo) {}
func (ui *headlessUi) RegisterUIServer(api *core.UIServerAPI) {}
func (ui *headlessUi) OnApprovedTx(tx ethapi.SignTransactionResult) {}
func (ui *headlessUi) ApproveTx(request *core.SignTxRequest) (core.SignTxResponse, error) {
switch <-ui.approveCh {
case "Y":
return core.SignTxResponse{request.Transaction, true}, nil
case "M": // modify
// The headless UI always modifies the transaction
old := big.Int(request.Transaction.Value)
newVal := big.NewInt(0).Add(&old, big.NewInt(1))
request.Transaction.Value = hexutil.Big(*newVal)
return core.SignTxResponse{request.Transaction, true}, nil
default:
return core.SignTxResponse{request.Transaction, false}, nil
}
}
func (ui *headlessUi) ApproveSignData(request *core.SignDataRequest) (core.SignDataResponse, error) {
approved := "Y" == <-ui.approveCh
return core.SignDataResponse{approved}, nil
}
func (ui *headlessUi) ApproveListing(request *core.ListRequest) (core.ListResponse, error) {
approval := <-ui.approveCh
//fmt.Printf("approval %s\n", approval)
switch approval {
case "A":
return core.ListResponse{request.Accounts}, nil
case "1":
l := make([]accounts.Account, 1)
l[0] = request.Accounts[1]
return core.ListResponse{l}, nil
default:
return core.ListResponse{nil}, nil
}
}
func (ui *headlessUi) ApproveNewAccount(request *core.NewAccountRequest) (core.NewAccountResponse, error) {
if "Y" == <-ui.approveCh {
return core.NewAccountResponse{true}, nil
}
return core.NewAccountResponse{false}, nil
}
func (ui *headlessUi) ShowError(message string) {
//stdout is used by communication
fmt.Fprintln(os.Stderr, message)
}
func (ui *headlessUi) ShowInfo(message string) {
//stdout is used by communication
fmt.Fprintln(os.Stderr, message)
}
func tmpDirName(t *testing.T) string {
d, err := ioutil.TempDir("", "eth-keystore-test")
if err != nil {
t.Fatal(err)
}
d, err = filepath.EvalSymlinks(d)
if err != nil {
t.Fatal(err)
}
return d
}
func setup(t *testing.T) (*core.SignerAPI, *headlessUi) {
db, err := fourbyte.New()
if err != nil {
t.Fatal(err.Error())
}
ui := &headlessUi{make(chan string, 20), make(chan string, 20)}
am := core.StartClefAccountManager(tmpDirName(t), true, true, "")
api := core.NewSignerAPI(am, 1337, true, ui, db, true, &storage.NoStorage{})
return api, ui
}
func createAccount(ui *headlessUi, api *core.SignerAPI, t *testing.T) {
ui.approveCh <- "Y"
ui.inputCh <- "a_long_password"
_, err := api.New(context.Background())
if err != nil {
t.Fatal(err)
}
// Some time to allow changes to propagate
time.Sleep(250 * time.Millisecond)
}
func failCreateAccountWithPassword(ui *headlessUi, api *core.SignerAPI, password string, t *testing.T) {
ui.approveCh <- "Y"
// We will be asked three times to provide a suitable password
ui.inputCh <- password
ui.inputCh <- password
ui.inputCh <- password
addr, err := api.New(context.Background())
if err == nil {
t.Fatal("Should have returned an error")
}
if addr != (common.Address{}) {
t.Fatal("Empty address should be returned")
}
}
func failCreateAccount(ui *headlessUi, api *core.SignerAPI, t *testing.T) {
ui.approveCh <- "N"
addr, err := api.New(context.Background())
if err != core.ErrRequestDenied {
t.Fatal(err)
}
if addr != (common.Address{}) {
t.Fatal("Empty address should be returned")
}
}
func list(ui *headlessUi, api *core.SignerAPI, t *testing.T) ([]common.Address, error) {
ui.approveCh <- "A"
return api.List(context.Background())
}
func TestNewAcc(t *testing.T) {
api, control := setup(t)
verifyNum := func(num int) {
list, err := list(control, api, t)
if err != nil {
t.Errorf("Unexpected error %v", err)
}
if len(list) != num {
t.Errorf("Expected %d accounts, got %d", num, len(list))
}
}
// Testing create and create-deny
createAccount(control, api, t)
createAccount(control, api, t)
failCreateAccount(control, api, t)
failCreateAccount(control, api, t)
createAccount(control, api, t)
failCreateAccount(control, api, t)
createAccount(control, api, t)
failCreateAccount(control, api, t)
verifyNum(4)
// Fail to create this, due to bad password
failCreateAccountWithPassword(control, api, "short", t)
failCreateAccountWithPassword(control, api, "longerbutbad\rfoo", t)
verifyNum(4)
// Testing listing:
// Listing one Account
control.approveCh <- "1"
list, err := api.List(context.Background())
if err != nil {
t.Fatal(err)
}
if len(list) != 1 {
t.Fatalf("List should only show one Account")
}
// Listing denied
control.approveCh <- "Nope"
list, err = api.List(context.Background())
if len(list) != 0 {
t.Fatalf("List should be empty")
}
if err != core.ErrRequestDenied {
t.Fatal("Expected deny")
}
}
func mkTestTx(from common.MixedcaseAddress) core.SendTxArgs {
to := common.NewMixedcaseAddress(common.HexToAddress("0x1337"))
gas := hexutil.Uint64(21000)
gasPrice := (hexutil.Big)(*big.NewInt(2000000000))
value := (hexutil.Big)(*big.NewInt(1e18))
nonce := (hexutil.Uint64)(0)
data := hexutil.Bytes(common.Hex2Bytes("01020304050607080a"))
tx := core.SendTxArgs{
From: from,
To: &to,
Gas: gas,
GasPrice: gasPrice,
Value: value,
Data: &data,
Nonce: nonce}
return tx
}
func TestSignTx(t *testing.T) {
var (
list []common.Address
res, res2 *ethapi.SignTransactionResult
err error
)
api, control := setup(t)
createAccount(control, api, t)
control.approveCh <- "A"
list, err = api.List(context.Background())
if err != nil {
t.Fatal(err)
}
a := common.NewMixedcaseAddress(list[0])
methodSig := "test(uint)"
tx := mkTestTx(a)
control.approveCh <- "Y"
control.inputCh <- "wrongpassword"
res, err = api.SignTransaction(context.Background(), tx, &methodSig)
if res != nil {
t.Errorf("Expected nil-response, got %v", res)
}
if err != keystore.ErrDecrypt {
t.Errorf("Expected ErrLocked! %v", err)
}
control.approveCh <- "No way"
res, err = api.SignTransaction(context.Background(), tx, &methodSig)
if res != nil {
t.Errorf("Expected nil-response, got %v", res)
}
if err != core.ErrRequestDenied {
t.Errorf("Expected ErrRequestDenied! %v", err)
}
// Sign with correct password
control.approveCh <- "Y"
control.inputCh <- "a_long_password"
res, err = api.SignTransaction(context.Background(), tx, &methodSig)
if err != nil {
t.Fatal(err)
}
parsedTx := &types.Transaction{}
rlp.Decode(bytes.NewReader(res.Raw), parsedTx)
//The tx should NOT be modified by the UI
if parsedTx.Value().Cmp(tx.Value.ToInt()) != 0 {
t.Errorf("Expected value to be unchanged, expected %v got %v", tx.Value, parsedTx.Value())
}
control.approveCh <- "Y"
control.inputCh <- "a_long_password"
res2, err = api.SignTransaction(context.Background(), tx, &methodSig)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(res.Raw, res2.Raw) {
t.Error("Expected tx to be unmodified by UI")
}
//The tx is modified by the UI
control.approveCh <- "M"
control.inputCh <- "a_long_password"
res2, err = api.SignTransaction(context.Background(), tx, &methodSig)
if err != nil {
t.Fatal(err)
}
parsedTx2 := &types.Transaction{}
rlp.Decode(bytes.NewReader(res.Raw), parsedTx2)
//The tx should be modified by the UI
if parsedTx2.Value().Cmp(tx.Value.ToInt()) != 0 {
t.Errorf("Expected value to be unchanged, got %v", parsedTx.Value())
}
if bytes.Equal(res.Raw, res2.Raw) {
t.Error("Expected tx to be modified by UI")
}
}