Index: chrome/browser/chromeos/login/quick_unlock/fingerprint_unlock.cc |
diff --git a/chrome/browser/chromeos/login/quick_unlock/fingerprint_unlock.cc b/chrome/browser/chromeos/login/quick_unlock/fingerprint_unlock.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..b1f8eec6691958b28706093a51d098ffa153ca9c |
--- /dev/null |
+++ b/chrome/browser/chromeos/login/quick_unlock/fingerprint_unlock.cc |
@@ -0,0 +1,64 @@ |
+// Copyright 2017 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#include "chrome/browser/chromeos/login/quick_unlock/fingerprint_unlock.h" |
+ |
+#include "chrome/browser/chromeos/login/quick_unlock/quick_unlock_utils.h" |
+#include "chrome/common/pref_names.h" |
+#include "components/prefs/pref_service.h" |
+ |
+namespace chromeos { |
+namespace quick_unlock { |
+ |
+FingerprintUnlock::FingerprintUnlock(PrefService* pref_service) |
+ : pref_service_(pref_service) {} |
+ |
+FingerprintUnlock::~FingerprintUnlock() {} |
+ |
+void FingerprintUnlock::MarkStrongAuth() { |
+ last_strong_auth_ = base::Time::Now(); |
+ ResetUnlockAttemptCount(); |
+} |
+ |
+bool FingerprintUnlock::HasStrongAuth() const { |
+ if (last_strong_auth_.is_null()) |
+ return false; |
+ |
+ // Assume the policy for fingerprint is same as pin, will change if different. |
jdufault
2017/02/24 23:37:10
What about
// PIN and fingerprint share the sam
xiaoyinh(OOO Sep 11-29)
2017/02/27 21:36:42
Done.
I keep this function in both fingerprint and
jdufault
2017/02/27 21:38:38
Yes, I would merge it into QuickUnlockStorage.
|
+ PasswordConfirmationFrequency strong_auth_interval = |
+ static_cast<PasswordConfirmationFrequency>( |
+ pref_service_->GetInteger(prefs::kQuickUnlockTimeout)); |
+ base::TimeDelta strong_auth_timeout = |
+ PasswordConfirmationFrequencyToTimeDelta(strong_auth_interval); |
+ |
+ return TimeSinceLastStrongAuth() < strong_auth_timeout; |
+} |
+ |
+bool FingerprintUnlock::HasEnrollment() const { |
+ return has_enrollments_; |
+} |
+ |
+base::TimeDelta FingerprintUnlock::TimeSinceLastStrongAuth() const { |
+ DCHECK(!last_strong_auth_.is_null()); |
+ return base::Time::Now() - last_strong_auth_; |
+} |
+ |
+void FingerprintUnlock::AddUnlockAttempt() { |
+ ++unlock_attempt_count_; |
+} |
+ |
+void FingerprintUnlock::ResetUnlockAttemptCount() { |
+ unlock_attempt_count_ = 0; |
+} |
+ |
+bool FingerprintUnlock::IsFingerprintAuthenticationAvailable() const { |
+ const bool exceeded_unlock_attempts = |
+ unlock_attempt_count() >= kMaximumUnlockAttempts; |
+ |
+ return IsFingerprintEnabled() && HasEnrollment() && HasStrongAuth() && |
+ !exceeded_unlock_attempts; |
+} |
+ |
+} // namespace quick_unlock |
+} // namespace chromeos |