Add automatic locking / unlocking of accounts

* Change account signing API to two sign functions;
  Sign without passphrase - works if account is unlocked
  Sign with passphrase - always works and unlocks the account
* Account stays unlocked for X ms and is then automatically locked

1 files changed, 51 insertions, 2 deletions

diff --git a/accounts/accounts_test.go b/accounts/accounts_test.go
index 4e97de545..8f036fd1f 100644
--- a/accounts/accounts_test.go
+++ b/accounts/accounts_test.go
@@ -6,20 +6,69 @@ import (
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/crypto/randentropy"
 	"github.com/ethereum/go-ethereum/ethutil"
+	"time"
 )
 
 func TestAccountManager(t *testing.T) {
 	ks := crypto.NewKeyStorePlain(ethutil.DefaultDataDir() + "/testaccounts")
-	am := NewAccountManager(ks)
+	am := NewAccountManager(ks, 100)
 	pass := "" // not used but required by API
 	a1, err := am.NewAccount(pass)
 	toSign := randentropy.GetEntropyCSPRNG(32)
-	_, err = am.Sign(a1, pass, toSign)
+	_, err = am.SignLocked(a1, pass, toSign)
 	if err != nil {
 		t.Fatal(err)
 	}
 
 	// Cleanup
+	time.Sleep(time.Millisecond * time.Duration(150)) // wait for locking
+
+	accounts, err := am.Accounts()
+	if err != nil {
+		t.Fatal(err)
+	}
+	for _, account := range accounts {
+		err := am.DeleteAccount(account.Address, pass)
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+}
+
+func TestAccountManagerLocking(t *testing.T) {
+	ks := crypto.NewKeyStorePassphrase(ethutil.DefaultDataDir() + "/testaccounts")
+	am := NewAccountManager(ks, 200)
+	pass := "foo"
+	a1, err := am.NewAccount(pass)
+	toSign := randentropy.GetEntropyCSPRNG(32)
+
+	// Signing without passphrase fails because account is locked
+	_, err = am.Sign(a1, toSign)
+	if err != ErrLocked {
+		t.Fatal(err)
+	}
+
+	// Signing with passphrase works
+	_, err = am.SignLocked(a1, pass, toSign)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Signing without passphrase works because account is temp unlocked
+	_, err = am.Sign(a1, toSign)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Signing without passphrase fails after automatic locking
+	time.Sleep(time.Millisecond * time.Duration(250))
+
+	_, err = am.Sign(a1, toSign)
+	if err != ErrLocked {
+		t.Fatal(err)
+	}
+
+	// Cleanup
 	accounts, err := am.Accounts()
 	if err != nil {
 		t.Fatal(err)