The accountCache contains a file cache, and remembers from scan to scan what files were present earlier. Thus, whenever there's a change, the scan phase only bothers processing new and removed files.
		
			
				
	
	
		
			388 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			388 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// Copyright 2017 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 keystore
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import (
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	"io/ioutil"
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	"math/rand"
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	"os"
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	"runtime"
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	"sort"
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	"strings"
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	"testing"
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	"time"
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	"github.com/ethereum/go-ethereum/accounts"
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	"github.com/ethereum/go-ethereum/common"
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	"github.com/ethereum/go-ethereum/event"
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)
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var testSigData = make([]byte, 32)
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func TestKeyStore(t *testing.T) {
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	dir, ks := tmpKeyStore(t, true)
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	defer os.RemoveAll(dir)
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	a, err := ks.NewAccount("foo")
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	if err != nil {
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		t.Fatal(err)
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	}
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	if !strings.HasPrefix(a.URL.Path, dir) {
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		t.Errorf("account file %s doesn't have dir prefix", a.URL)
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	}
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	stat, err := os.Stat(a.URL.Path)
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	if err != nil {
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		t.Fatalf("account file %s doesn't exist (%v)", a.URL, err)
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	}
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	if runtime.GOOS != "windows" && stat.Mode() != 0600 {
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		t.Fatalf("account file has wrong mode: got %o, want %o", stat.Mode(), 0600)
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	}
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	if !ks.HasAddress(a.Address) {
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		t.Errorf("HasAccount(%x) should've returned true", a.Address)
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	}
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	if err := ks.Update(a, "foo", "bar"); err != nil {
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		t.Errorf("Update error: %v", err)
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	}
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	if err := ks.Delete(a, "bar"); err != nil {
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		t.Errorf("Delete error: %v", err)
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	}
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	if common.FileExist(a.URL.Path) {
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		t.Errorf("account file %s should be gone after Delete", a.URL)
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	}
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	if ks.HasAddress(a.Address) {
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		t.Errorf("HasAccount(%x) should've returned true after Delete", a.Address)
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	}
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}
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func TestSign(t *testing.T) {
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	dir, ks := tmpKeyStore(t, true)
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	defer os.RemoveAll(dir)
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	pass := "" // not used but required by API
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	a1, err := ks.NewAccount(pass)
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	if err != nil {
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		t.Fatal(err)
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	}
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	if err := ks.Unlock(a1, ""); err != nil {
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		t.Fatal(err)
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	}
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	if _, err := ks.SignHash(accounts.Account{Address: a1.Address}, testSigData); err != nil {
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		t.Fatal(err)
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	}
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}
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func TestSignWithPassphrase(t *testing.T) {
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	dir, ks := tmpKeyStore(t, true)
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	defer os.RemoveAll(dir)
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	pass := "passwd"
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	acc, err := ks.NewAccount(pass)
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	if err != nil {
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		t.Fatal(err)
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	}
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	if _, unlocked := ks.unlocked[acc.Address]; unlocked {
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		t.Fatal("expected account to be locked")
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	}
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	_, err = ks.SignHashWithPassphrase(acc, pass, testSigData)
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	if err != nil {
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		t.Fatal(err)
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	}
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	if _, unlocked := ks.unlocked[acc.Address]; unlocked {
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		t.Fatal("expected account to be locked")
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	}
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	if _, err = ks.SignHashWithPassphrase(acc, "invalid passwd", testSigData); err == nil {
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		t.Fatal("expected SignHashWithPassphrase to fail with invalid password")
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	}
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}
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func TestTimedUnlock(t *testing.T) {
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	dir, ks := tmpKeyStore(t, true)
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	defer os.RemoveAll(dir)
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	pass := "foo"
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	a1, err := ks.NewAccount(pass)
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	if err != nil {
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		t.Fatal(err)
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	}
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	// Signing without passphrase fails because account is locked
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	_, err = ks.SignHash(accounts.Account{Address: a1.Address}, testSigData)
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	if err != ErrLocked {
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		t.Fatal("Signing should've failed with ErrLocked before unlocking, got ", err)
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	}
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	// Signing with passphrase works
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	if err = ks.TimedUnlock(a1, pass, 100*time.Millisecond); err != nil {
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		t.Fatal(err)
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	}
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	// Signing without passphrase works because account is temp unlocked
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	_, err = ks.SignHash(accounts.Account{Address: a1.Address}, testSigData)
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	if err != nil {
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		t.Fatal("Signing shouldn't return an error after unlocking, got ", err)
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	}
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	// Signing fails again after automatic locking
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	time.Sleep(250 * time.Millisecond)
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	_, err = ks.SignHash(accounts.Account{Address: a1.Address}, testSigData)
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	if err != ErrLocked {
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		t.Fatal("Signing should've failed with ErrLocked timeout expired, got ", err)
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	}
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}
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func TestOverrideUnlock(t *testing.T) {
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	dir, ks := tmpKeyStore(t, false)
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	defer os.RemoveAll(dir)
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	pass := "foo"
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	a1, err := ks.NewAccount(pass)
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	if err != nil {
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		t.Fatal(err)
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	}
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	// Unlock indefinitely.
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	if err = ks.TimedUnlock(a1, pass, 5*time.Minute); err != nil {
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		t.Fatal(err)
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	}
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	// Signing without passphrase works because account is temp unlocked
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	_, err = ks.SignHash(accounts.Account{Address: a1.Address}, testSigData)
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	if err != nil {
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		t.Fatal("Signing shouldn't return an error after unlocking, got ", err)
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	}
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	// reset unlock to a shorter period, invalidates the previous unlock
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	if err = ks.TimedUnlock(a1, pass, 100*time.Millisecond); err != nil {
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		t.Fatal(err)
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	}
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	// Signing without passphrase still works because account is temp unlocked
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	_, err = ks.SignHash(accounts.Account{Address: a1.Address}, testSigData)
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	if err != nil {
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		t.Fatal("Signing shouldn't return an error after unlocking, got ", err)
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	}
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	// Signing fails again after automatic locking
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	time.Sleep(250 * time.Millisecond)
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	_, err = ks.SignHash(accounts.Account{Address: a1.Address}, testSigData)
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	if err != ErrLocked {
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		t.Fatal("Signing should've failed with ErrLocked timeout expired, got ", err)
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	}
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}
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// This test should fail under -race if signing races the expiration goroutine.
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func TestSignRace(t *testing.T) {
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	dir, ks := tmpKeyStore(t, false)
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	defer os.RemoveAll(dir)
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	// Create a test account.
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	a1, err := ks.NewAccount("")
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	if err != nil {
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		t.Fatal("could not create the test account", err)
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	}
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	if err := ks.TimedUnlock(a1, "", 15*time.Millisecond); err != nil {
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		t.Fatal("could not unlock the test account", err)
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	}
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	end := time.Now().Add(500 * time.Millisecond)
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	for time.Now().Before(end) {
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		if _, err := ks.SignHash(accounts.Account{Address: a1.Address}, testSigData); err == ErrLocked {
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			return
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		} else if err != nil {
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			t.Errorf("Sign error: %v", err)
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			return
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		}
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		time.Sleep(1 * time.Millisecond)
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	}
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	t.Errorf("Account did not lock within the timeout")
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}
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// Tests that the wallet notifier loop starts and stops correctly based on the
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// addition and removal of wallet event subscriptions.
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func TestWalletNotifierLifecycle(t *testing.T) {
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	// Create a temporary kesytore to test with
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	dir, ks := tmpKeyStore(t, false)
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	defer os.RemoveAll(dir)
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	// Ensure that the notification updater is not running yet
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	time.Sleep(250 * time.Millisecond)
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	ks.mu.RLock()
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	updating := ks.updating
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	ks.mu.RUnlock()
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	if updating {
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		t.Errorf("wallet notifier running without subscribers")
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	}
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	// Subscribe to the wallet feed and ensure the updater boots up
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	updates := make(chan accounts.WalletEvent)
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	subs := make([]event.Subscription, 2)
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	for i := 0; i < len(subs); i++ {
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		// Create a new subscription
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		subs[i] = ks.Subscribe(updates)
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		// Ensure the notifier comes online
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		time.Sleep(250 * time.Millisecond)
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		ks.mu.RLock()
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		updating = ks.updating
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		ks.mu.RUnlock()
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		if !updating {
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			t.Errorf("sub %d: wallet notifier not running after subscription", i)
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		}
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	}
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	// Unsubscribe and ensure the updater terminates eventually
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	for i := 0; i < len(subs); i++ {
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		// Close an existing subscription
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		subs[i].Unsubscribe()
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		// Ensure the notifier shuts down at and only at the last close
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		for k := 0; k < int(walletRefreshCycle/(250*time.Millisecond))+2; k++ {
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			ks.mu.RLock()
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			updating = ks.updating
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			ks.mu.RUnlock()
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			if i < len(subs)-1 && !updating {
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				t.Fatalf("sub %d: event notifier stopped prematurely", i)
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			}
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			if i == len(subs)-1 && !updating {
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				return
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			}
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			time.Sleep(250 * time.Millisecond)
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		}
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	}
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	t.Errorf("wallet notifier didn't terminate after unsubscribe")
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}
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type walletEvent struct {
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	accounts.WalletEvent
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	a accounts.Account
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}
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// Tests that wallet notifications and correctly fired when accounts are added
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// or deleted from the keystore.
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func TestWalletNotifications(t *testing.T) {
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	dir, ks := tmpKeyStore(t, false)
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	defer os.RemoveAll(dir)
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	// Subscribe to the wallet feed and collect events.
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	var (
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		events  []walletEvent
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		updates = make(chan accounts.WalletEvent)
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		sub     = ks.Subscribe(updates)
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	)
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	defer sub.Unsubscribe()
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	go func() {
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		for {
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			select {
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			case ev := <-updates:
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				events = append(events, walletEvent{ev, ev.Wallet.Accounts()[0]})
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			case <-sub.Err():
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				close(updates)
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				return
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			}
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		}
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	}()
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	// Randomly add and remove accounts.
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	var (
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		live       = make(map[common.Address]accounts.Account)
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		wantEvents []walletEvent
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	)
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	for i := 0; i < 1024; i++ {
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		if create := len(live) == 0 || rand.Int()%4 > 0; create {
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			// Add a new account and ensure wallet notifications arrives
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			account, err := ks.NewAccount("")
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			if err != nil {
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				t.Fatalf("failed to create test account: %v", err)
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			}
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			live[account.Address] = account
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			wantEvents = append(wantEvents, walletEvent{accounts.WalletEvent{Kind: accounts.WalletArrived}, account})
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		} else {
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			// Delete a random account.
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			var account accounts.Account
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			for _, a := range live {
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				account = a
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				break
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			}
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			if err := ks.Delete(account, ""); err != nil {
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				t.Fatalf("failed to delete test account: %v", err)
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			}
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			delete(live, account.Address)
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			wantEvents = append(wantEvents, walletEvent{accounts.WalletEvent{Kind: accounts.WalletDropped}, account})
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		}
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	}
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	// Shut down the event collector and check events.
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	sub.Unsubscribe()
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	<-updates
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	checkAccounts(t, live, ks.Wallets())
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	checkEvents(t, wantEvents, events)
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}
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// checkAccounts checks that all known live accounts are present in the wallet list.
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func checkAccounts(t *testing.T, live map[common.Address]accounts.Account, wallets []accounts.Wallet) {
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	if len(live) != len(wallets) {
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		t.Errorf("wallet list doesn't match required accounts: have %d, want %d", len(wallets), len(live))
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		return
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	}
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	liveList := make([]accounts.Account, 0, len(live))
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	for _, account := range live {
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		liveList = append(liveList, account)
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	}
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	sort.Sort(accountsByURL(liveList))
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	for j, wallet := range wallets {
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		if accs := wallet.Accounts(); len(accs) != 1 {
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			t.Errorf("wallet %d: contains invalid number of accounts: have %d, want 1", j, len(accs))
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		} else if accs[0] != liveList[j] {
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			t.Errorf("wallet %d: account mismatch: have %v, want %v", j, accs[0], liveList[j])
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		}
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	}
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}
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// checkEvents checks that all events in 'want' are present in 'have'. Events may be present multiple times.
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func checkEvents(t *testing.T, want []walletEvent, have []walletEvent) {
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	for _, wantEv := range want {
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		nmatch := 0
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		for ; len(have) > 0; nmatch++ {
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						|
			if have[0].Kind != wantEv.Kind || have[0].a != wantEv.a {
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				break
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			}
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			have = have[1:]
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		}
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		if nmatch == 0 {
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			t.Fatalf("can't find event with Kind=%v for %x", wantEv.Kind, wantEv.a.Address)
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		}
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	}
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}
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func tmpKeyStore(t *testing.T, encrypted bool) (string, *KeyStore) {
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	d, err := ioutil.TempDir("", "eth-keystore-test")
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						|
	if err != nil {
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		t.Fatal(err)
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	}
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	new := NewPlaintextKeyStore
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	if encrypted {
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		new = func(kd string) *KeyStore { return NewKeyStore(kd, veryLightScryptN, veryLightScryptP) }
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	}
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	return d, new(d)
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}
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