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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Brought to you by the letter D and the number 2. | 5 // Brought to you by the letter D and the number 2. |
6 | 6 |
7 #ifndef NET_COOKIES_COOKIE_MONSTER_H_ | 7 #ifndef NET_COOKIES_COOKIE_MONSTER_H_ |
8 #define NET_COOKIES_COOKIE_MONSTER_H_ | 8 #define NET_COOKIES_COOKIE_MONSTER_H_ |
9 | 9 |
10 #include <deque> | 10 #include <deque> |
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30 class GURL; | 30 class GURL; |
31 | 31 |
32 namespace base { | 32 namespace base { |
33 class Histogram; | 33 class Histogram; |
34 class HistogramBase; | 34 class HistogramBase; |
35 class TimeTicks; | 35 class TimeTicks; |
36 } // namespace base | 36 } // namespace base |
37 | 37 |
38 namespace net { | 38 namespace net { |
39 | 39 |
| 40 class CookieMonsterDelegate; |
40 class ParsedCookie; | 41 class ParsedCookie; |
41 | 42 |
42 // The cookie monster is the system for storing and retrieving cookies. It has | 43 // The cookie monster is the system for storing and retrieving cookies. It has |
43 // an in-memory list of all cookies, and synchronizes non-session cookies to an | 44 // an in-memory list of all cookies, and synchronizes non-session cookies to an |
44 // optional permanent storage that implements the PersistentCookieStore | 45 // optional permanent storage that implements the PersistentCookieStore |
45 // interface. | 46 // interface. |
46 // | 47 // |
47 // This class IS thread-safe. Normally, it is only used on the I/O thread, but | 48 // This class IS thread-safe. Normally, it is only used on the I/O thread, but |
48 // is also accessed directly through Automation for UI testing. | 49 // is also accessed directly through Automation for UI testing. |
49 // | 50 // |
50 // All cookie tasks are handled asynchronously. Tasks may be deferred if | 51 // All cookie tasks are handled asynchronously. Tasks may be deferred if |
51 // all affected cookies are not yet loaded from the backing store. Otherwise, | 52 // all affected cookies are not yet loaded from the backing store. Otherwise, |
52 // the callback may be invoked immediately (prior to return of the asynchronous | 53 // the callback may be invoked immediately (prior to return of the asynchronous |
53 // function). | 54 // function). |
54 // | 55 // |
55 // A cookie task is either pending loading of the entire cookie store, or | 56 // A cookie task is either pending loading of the entire cookie store, or |
56 // loading of cookies for a specfic domain key(eTLD+1). In the former case, the | 57 // loading of cookies for a specfic domain key(eTLD+1). In the former case, the |
57 // cookie task will be queued in tasks_pending_ while PersistentCookieStore | 58 // cookie task will be queued in tasks_pending_ while PersistentCookieStore |
58 // chain loads the cookie store on DB thread. In the latter case, the cookie | 59 // chain loads the cookie store on DB thread. In the latter case, the cookie |
59 // task will be queued in tasks_pending_for_key_ while PermanentCookieStore | 60 // task will be queued in tasks_pending_for_key_ while PermanentCookieStore |
60 // loads cookies for the specified domain key(eTLD+1) on DB thread. | 61 // loads cookies for the specified domain key(eTLD+1) on DB thread. |
61 // | 62 // |
62 // Callbacks are guaranteed to be invoked on the calling thread. | 63 // Callbacks are guaranteed to be invoked on the calling thread. |
63 // | 64 // |
64 // TODO(deanm) Implement CookieMonster, the cookie database. | 65 // TODO(deanm) Implement CookieMonster, the cookie database. |
65 // - Verify that our domain enforcement and non-dotted handling is correct | 66 // - Verify that our domain enforcement and non-dotted handling is correct |
66 class NET_EXPORT CookieMonster : public CookieStore { | 67 class NET_EXPORT CookieMonster : public CookieStore { |
67 public: | 68 public: |
68 class Delegate; | |
69 class PersistentCookieStore; | 69 class PersistentCookieStore; |
| 70 typedef CookieMonsterDelegate Delegate; |
70 | 71 |
71 // Terminology: | 72 // Terminology: |
72 // * The 'top level domain' (TLD) of an internet domain name is | 73 // * The 'top level domain' (TLD) of an internet domain name is |
73 // the terminal "." free substring (e.g. "com" for google.com | 74 // the terminal "." free substring (e.g. "com" for google.com |
74 // or world.std.com). | 75 // or world.std.com). |
75 // * The 'effective top level domain' (eTLD) is the longest | 76 // * The 'effective top level domain' (eTLD) is the longest |
76 // "." initiated terminal substring of an internet domain name | 77 // "." initiated terminal substring of an internet domain name |
77 // that is controlled by a general domain registrar. | 78 // that is controlled by a general domain registrar. |
78 // (e.g. "co.uk" for news.bbc.co.uk). | 79 // (e.g. "co.uk" for news.bbc.co.uk). |
79 // * The 'effective top level domain plus one' (eTLD+1) is the | 80 // * The 'effective top level domain plus one' (eTLD+1) is the |
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131 static const size_t kDomainCookiesQuotaLow; | 132 static const size_t kDomainCookiesQuotaLow; |
132 static const size_t kDomainCookiesQuotaMedium; | 133 static const size_t kDomainCookiesQuotaMedium; |
133 static const size_t kDomainCookiesQuotaHigh; | 134 static const size_t kDomainCookiesQuotaHigh; |
134 | 135 |
135 // The store passed in should not have had Init() called on it yet. This | 136 // The store passed in should not have had Init() called on it yet. This |
136 // class will take care of initializing it. The backing store is NOT owned by | 137 // class will take care of initializing it. The backing store is NOT owned by |
137 // this class, but it must remain valid for the duration of the cookie | 138 // this class, but it must remain valid for the duration of the cookie |
138 // monster's existence. If |store| is NULL, then no backing store will be | 139 // monster's existence. If |store| is NULL, then no backing store will be |
139 // updated. If |delegate| is non-NULL, it will be notified on | 140 // updated. If |delegate| is non-NULL, it will be notified on |
140 // creation/deletion of cookies. | 141 // creation/deletion of cookies. |
141 CookieMonster(PersistentCookieStore* store, Delegate* delegate); | 142 CookieMonster(PersistentCookieStore* store, CookieMonsterDelegate* delegate); |
142 | 143 |
143 // Only used during unit testing. | 144 // Only used during unit testing. |
144 CookieMonster(PersistentCookieStore* store, | 145 CookieMonster(PersistentCookieStore* store, |
145 Delegate* delegate, | 146 CookieMonsterDelegate* delegate, |
146 int last_access_threshold_milliseconds); | 147 int last_access_threshold_milliseconds); |
147 | 148 |
148 // Helper function that adds all cookies from |list| into this instance. | 149 // Helper function that adds all cookies from |list| into this instance. |
149 bool InitializeFrom(const CookieList& list); | 150 bool InitializeFrom(const CookieList& list); |
150 | 151 |
151 typedef base::Callback<void(const CookieList& cookies)> GetCookieListCallback; | 152 typedef base::Callback<void(const CookieList& cookies)> GetCookieListCallback; |
152 typedef base::Callback<void(bool success)> DeleteCookieCallback; | 153 typedef base::Callback<void(bool success)> DeleteCookieCallback; |
153 typedef base::Callback<void(bool cookies_exist)> HasCookiesForETLDP1Callback; | 154 typedef base::Callback<void(bool cookies_exist)> HasCookiesForETLDP1Callback; |
154 | 155 |
155 // Sets a cookie given explicit user-provided cookie attributes. The cookie | 156 // Sets a cookie given explicit user-provided cookie attributes. The cookie |
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333 FRIEND_TEST_ALL_PREFIXES(CookieMonsterTest, GetKey); | 334 FRIEND_TEST_ALL_PREFIXES(CookieMonsterTest, GetKey); |
334 FRIEND_TEST_ALL_PREFIXES(CookieMonsterTest, TestGetKey); | 335 FRIEND_TEST_ALL_PREFIXES(CookieMonsterTest, TestGetKey); |
335 | 336 |
336 // For FindCookiesForKey. | 337 // For FindCookiesForKey. |
337 FRIEND_TEST_ALL_PREFIXES(CookieMonsterTest, ShortLivedSessionCookies); | 338 FRIEND_TEST_ALL_PREFIXES(CookieMonsterTest, ShortLivedSessionCookies); |
338 | 339 |
339 // Internal reasons for deletion, used to populate informative histograms | 340 // Internal reasons for deletion, used to populate informative histograms |
340 // and to provide a public cause for onCookieChange notifications. | 341 // and to provide a public cause for onCookieChange notifications. |
341 // | 342 // |
342 // If you add or remove causes from this list, please be sure to also update | 343 // If you add or remove causes from this list, please be sure to also update |
343 // the Delegate::ChangeCause mapping inside ChangeCauseMapping. Moreover, | 344 // the CookieMonsterDelegate::ChangeCause mapping inside ChangeCauseMapping. |
344 // these are used as array indexes, so avoid reordering to keep the | 345 // Moreover, these are used as array indexes, so avoid reordering to keep the |
345 // histogram buckets consistent. New items (if necessary) should be added | 346 // histogram buckets consistent. New items (if necessary) should be added |
346 // at the end of the list, just before DELETE_COOKIE_LAST_ENTRY. | 347 // at the end of the list, just before DELETE_COOKIE_LAST_ENTRY. |
347 enum DeletionCause { | 348 enum DeletionCause { |
348 DELETE_COOKIE_EXPLICIT = 0, | 349 DELETE_COOKIE_EXPLICIT = 0, |
349 DELETE_COOKIE_OVERWRITE, | 350 DELETE_COOKIE_OVERWRITE, |
350 DELETE_COOKIE_EXPIRED, | 351 DELETE_COOKIE_EXPIRED, |
351 DELETE_COOKIE_EVICTED, | 352 DELETE_COOKIE_EVICTED, |
352 DELETE_COOKIE_DUPLICATE_IN_BACKING_STORE, | 353 DELETE_COOKIE_DUPLICATE_IN_BACKING_STORE, |
353 DELETE_COOKIE_DONT_RECORD, // e.g. For final cleanup after flush to store. | 354 DELETE_COOKIE_DONT_RECORD, // e.g. For final cleanup after flush to store. |
354 DELETE_COOKIE_EVICTED_DOMAIN, | 355 DELETE_COOKIE_EVICTED_DOMAIN, |
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518 // Helper function that sets a canonical cookie, deleting equivalents and | 519 // Helper function that sets a canonical cookie, deleting equivalents and |
519 // performing garbage collection. | 520 // performing garbage collection. |
520 bool SetCanonicalCookie(scoped_ptr<CanonicalCookie>* cc, | 521 bool SetCanonicalCookie(scoped_ptr<CanonicalCookie>* cc, |
521 const base::Time& creation_time, | 522 const base::Time& creation_time, |
522 const CookieOptions& options); | 523 const CookieOptions& options); |
523 | 524 |
524 void InternalUpdateCookieAccessTime(CanonicalCookie* cc, | 525 void InternalUpdateCookieAccessTime(CanonicalCookie* cc, |
525 const base::Time& current_time); | 526 const base::Time& current_time); |
526 | 527 |
527 // |deletion_cause| argument is used for collecting statistics and choosing | 528 // |deletion_cause| argument is used for collecting statistics and choosing |
528 // the correct Delegate::ChangeCause for OnCookieChanged notifications. | 529 // the correct CookieMonsterDelegate::ChangeCause for OnCookieChanged |
| 530 // notifications. |
529 void InternalDeleteCookie(CookieMap::iterator it, bool sync_to_store, | 531 void InternalDeleteCookie(CookieMap::iterator it, bool sync_to_store, |
530 DeletionCause deletion_cause); | 532 DeletionCause deletion_cause); |
531 | 533 |
532 // If the number of cookies for CookieMap key |key|, or globally, are | 534 // If the number of cookies for CookieMap key |key|, or globally, are |
533 // over the preset maximums above, garbage collect, first for the host and | 535 // over the preset maximums above, garbage collect, first for the host and |
534 // then globally. See comments above garbage collection threshold | 536 // then globally. See comments above garbage collection threshold |
535 // constants for details. | 537 // constants for details. |
536 // | 538 // |
537 // Returns the number of cookies deleted (useful for debugging). | 539 // Returns the number of cookies deleted (useful for debugging). |
538 int GarbageCollect(const base::Time& current, const std::string& key); | 540 int GarbageCollect(const base::Time& current, const std::string& key); |
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640 base::Time earliest_access_time_; | 642 base::Time earliest_access_time_; |
641 | 643 |
642 // During loading, holds the set of all loaded cookie creation times. Used to | 644 // During loading, holds the set of all loaded cookie creation times. Used to |
643 // avoid ever letting cookies with duplicate creation times into the store; | 645 // avoid ever letting cookies with duplicate creation times into the store; |
644 // that way we don't have to worry about what sections of code are safe | 646 // that way we don't have to worry about what sections of code are safe |
645 // to call while it's in that state. | 647 // to call while it's in that state. |
646 std::set<int64> creation_times_; | 648 std::set<int64> creation_times_; |
647 | 649 |
648 std::vector<std::string> cookieable_schemes_; | 650 std::vector<std::string> cookieable_schemes_; |
649 | 651 |
650 scoped_refptr<Delegate> delegate_; | 652 scoped_refptr<CookieMonsterDelegate> delegate_; |
651 | 653 |
652 // Lock for thread-safety | 654 // Lock for thread-safety |
653 base::Lock lock_; | 655 base::Lock lock_; |
654 | 656 |
655 base::Time last_statistic_record_time_; | 657 base::Time last_statistic_record_time_; |
656 | 658 |
657 bool keep_expired_cookies_; | 659 bool keep_expired_cookies_; |
658 bool persist_session_cookies_; | 660 bool persist_session_cookies_; |
659 bool priority_aware_garbage_collection_; | 661 bool priority_aware_garbage_collection_; |
660 | 662 |
661 // Static setting for whether or not file scheme cookies are allows when | 663 // Static setting for whether or not file scheme cookies are allows when |
662 // a new CookieMonster is created, or the accepted schemes on a CookieMonster | 664 // a new CookieMonster is created, or the accepted schemes on a CookieMonster |
663 // instance are reset back to defaults. | 665 // instance are reset back to defaults. |
664 static bool default_enable_file_scheme_; | 666 static bool default_enable_file_scheme_; |
665 | 667 |
666 DISALLOW_COPY_AND_ASSIGN(CookieMonster); | 668 DISALLOW_COPY_AND_ASSIGN(CookieMonster); |
667 }; | 669 }; |
668 | 670 |
669 class NET_EXPORT CookieMonster::Delegate | 671 class NET_EXPORT CookieMonsterDelegate |
670 : public base::RefCountedThreadSafe<CookieMonster::Delegate> { | 672 : public base::RefCountedThreadSafe<CookieMonsterDelegate> { |
671 public: | 673 public: |
672 // The publicly relevant reasons a cookie might be changed. | 674 // The publicly relevant reasons a cookie might be changed. |
673 enum ChangeCause { | 675 enum ChangeCause { |
674 // The cookie was changed directly by a consumer's action. | 676 // The cookie was changed directly by a consumer's action. |
675 CHANGE_COOKIE_EXPLICIT, | 677 CHANGE_COOKIE_EXPLICIT, |
676 // The cookie was automatically removed due to an insert operation that | 678 // The cookie was automatically removed due to an insert operation that |
677 // overwrote it. | 679 // overwrote it. |
678 CHANGE_COOKIE_OVERWRITE, | 680 CHANGE_COOKIE_OVERWRITE, |
679 // The cookie was automatically removed as it expired. | 681 // The cookie was automatically removed as it expired. |
680 CHANGE_COOKIE_EXPIRED, | 682 CHANGE_COOKIE_EXPIRED, |
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692 // | 694 // |
693 // As a special case, note that updating a cookie's properties is implemented | 695 // As a special case, note that updating a cookie's properties is implemented |
694 // as a two step process: the cookie to be updated is first removed entirely, | 696 // as a two step process: the cookie to be updated is first removed entirely, |
695 // generating a notification with cause CHANGE_COOKIE_OVERWRITE. Afterwards, | 697 // generating a notification with cause CHANGE_COOKIE_OVERWRITE. Afterwards, |
696 // a new cookie is written with the updated values, generating a notification | 698 // a new cookie is written with the updated values, generating a notification |
697 // with cause CHANGE_COOKIE_EXPLICIT. | 699 // with cause CHANGE_COOKIE_EXPLICIT. |
698 virtual void OnCookieChanged(const CanonicalCookie& cookie, | 700 virtual void OnCookieChanged(const CanonicalCookie& cookie, |
699 bool removed, | 701 bool removed, |
700 ChangeCause cause) = 0; | 702 ChangeCause cause) = 0; |
701 protected: | 703 protected: |
702 friend class base::RefCountedThreadSafe<CookieMonster::Delegate>; | 704 friend class base::RefCountedThreadSafe<CookieMonsterDelegate>; |
703 virtual ~Delegate() {} | 705 virtual ~CookieMonsterDelegate() {} |
704 }; | 706 }; |
705 | 707 |
706 typedef base::RefCountedThreadSafe<CookieMonster::PersistentCookieStore> | 708 typedef base::RefCountedThreadSafe<CookieMonster::PersistentCookieStore> |
707 RefcountedPersistentCookieStore; | 709 RefcountedPersistentCookieStore; |
708 | 710 |
709 class NET_EXPORT CookieMonster::PersistentCookieStore | 711 class NET_EXPORT CookieMonster::PersistentCookieStore |
710 : public RefcountedPersistentCookieStore { | 712 : public RefcountedPersistentCookieStore { |
711 public: | 713 public: |
712 typedef base::Callback<void(const std::vector<CanonicalCookie*>&)> | 714 typedef base::Callback<void(const std::vector<CanonicalCookie*>&)> |
713 LoadedCallback; | 715 LoadedCallback; |
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740 virtual ~PersistentCookieStore() {} | 742 virtual ~PersistentCookieStore() {} |
741 | 743 |
742 private: | 744 private: |
743 friend class base::RefCountedThreadSafe<PersistentCookieStore>; | 745 friend class base::RefCountedThreadSafe<PersistentCookieStore>; |
744 DISALLOW_COPY_AND_ASSIGN(PersistentCookieStore); | 746 DISALLOW_COPY_AND_ASSIGN(PersistentCookieStore); |
745 }; | 747 }; |
746 | 748 |
747 } // namespace net | 749 } // namespace net |
748 | 750 |
749 #endif // NET_COOKIES_COOKIE_MONSTER_H_ | 751 #endif // NET_COOKIES_COOKIE_MONSTER_H_ |
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