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| 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_QUICK_UNLOCK_FINGERPRINT_STORAGE_H_ |
| 6 #define CHROME_BROWSER_CHROMEOS_LOGIN_QUICK_UNLOCK_FINGERPRINT_STORAGE_H_ |
| 7 |
| 8 #include "base/time/time.h" |
| 9 |
| 10 class PrefService; |
| 11 |
| 12 namespace chromeos { |
| 13 |
| 14 class FingerprintStorageTestApi; |
| 15 |
| 16 namespace quick_unlock { |
| 17 |
| 18 class FingerprintStorage { |
| 19 public: |
| 20 static const int kMaximumUnlockAttempts = 5; |
| 21 |
| 22 explicit FingerprintStorage(PrefService* pref_service); |
| 23 ~FingerprintStorage(); |
| 24 |
| 25 // Mark in storage that the user has had a strong authentication. This means |
| 26 // that they authenticated with their password, for example. Fingerprint |
| 27 // unlock will timeout after a delay. |
| 28 void MarkStrongAuth(); |
| 29 |
| 30 // Returns true if the user has been strongly authenticated. |
| 31 bool HasStrongAuth() const; |
| 32 |
| 33 // Returns the time since the last strong authentication. This should not be |
| 34 // called if HasStrongAuth returns false. |
| 35 base::TimeDelta TimeSinceLastStrongAuth() const; |
| 36 |
| 37 // Returns true if fingerprint unlock is currently available. |
| 38 bool IsFingerprintAuthenticationAvailable() const; |
| 39 |
| 40 // Returns true if the user has fingerprint enrollments registered. |
| 41 bool HasEnrollment() const; |
| 42 |
| 43 // Add a fingerprint unlock attempt count. |
| 44 void AddUnlockAttempt(); |
| 45 |
| 46 // Reset the number of unlock attempts to 0. |
| 47 void ResetUnlockAttemptCount(); |
| 48 |
| 49 int unlock_attempt_count() const { return unlock_attempt_count_; } |
| 50 |
| 51 private: |
| 52 friend class chromeos::FingerprintStorageTestApi; |
| 53 |
| 54 PrefService* pref_service_; |
| 55 // Number of fingerprint unlock attempt. |
| 56 int unlock_attempt_count_ = 0; |
| 57 bool has_enrollments_ = false; |
| 58 base::Time last_strong_auth_; |
| 59 |
| 60 DISALLOW_COPY_AND_ASSIGN(FingerprintStorage); |
| 61 }; |
| 62 |
| 63 } // namespace quick_unlock |
| 64 } // namespace chromeos |
| 65 |
| 66 #endif // CHROME_BROWSER_CHROMEOS_LOGIN_QUICK_UNLOCK_FINGERPRINT_STORAGE_H_ |
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