summaryrefslogtreecommitdiff
path: root/netwerk/cache/nsDiskCacheDeviceSQL.h
blob: fcde58d3d77de3a2824fbb25f17390d2cad6ffa7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
/* vim:set ts=2 sw=2 sts=2 et cin: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nsOfflineCacheDevice_h__
#define nsOfflineCacheDevice_h__

#include "nsCacheDevice.h"
#include "nsIApplicationCache.h"
#include "nsIApplicationCacheService.h"
#include "nsIObserver.h"
#include "mozIStorageConnection.h"
#include "mozIStorageFunction.h"
#include "nsIFile.h"
#include "nsAutoPtr.h"
#include "nsCOMPtr.h"
#include "nsCOMArray.h"
#include "nsInterfaceHashtable.h"
#include "nsClassHashtable.h"
#include "nsWeakReference.h"
#include "mozilla/Attributes.h"
#include "mozilla/Mutex.h"

class nsIURI;
class nsOfflineCacheDevice;
class mozIStorageService;
class nsILoadContextInfo;
namespace mozilla { class OriginAttributesPattern; }

class nsApplicationCacheNamespace final : public nsIApplicationCacheNamespace
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSIAPPLICATIONCACHENAMESPACE

  nsApplicationCacheNamespace() : mItemType(0) {}

private:
  ~nsApplicationCacheNamespace() {}

  uint32_t mItemType;
  nsCString mNamespaceSpec;
  nsCString mData;
};

class nsOfflineCacheEvictionFunction final : public mozIStorageFunction {
public:
  NS_DECL_THREADSAFE_ISUPPORTS
  NS_DECL_MOZISTORAGEFUNCTION

  explicit nsOfflineCacheEvictionFunction(nsOfflineCacheDevice *device);

  void Init();
  void Reset();
  void Apply();

private:
  ~nsOfflineCacheEvictionFunction() {}

  nsOfflineCacheDevice *mDevice;
  bool mTLSInited;
};

class nsOfflineCacheDevice final : public nsCacheDevice
                                 , public nsISupports
{
public:
  nsOfflineCacheDevice();

  NS_DECL_THREADSAFE_ISUPPORTS

  /**
   * nsCacheDevice methods
   */

  virtual nsresult        Init() override;
  nsresult                InitWithSqlite(mozIStorageService * ss);
  virtual nsresult        Shutdown() override;

  virtual const char *    GetDeviceID(void) override;
  virtual nsCacheEntry *  FindEntry(nsCString * key, bool *collision) override;
  virtual nsresult        DeactivateEntry(nsCacheEntry * entry) override;
  virtual nsresult        BindEntry(nsCacheEntry * entry) override;
  virtual void            DoomEntry( nsCacheEntry * entry ) override;

  virtual nsresult OpenInputStreamForEntry(nsCacheEntry *    entry,
                                           nsCacheAccessMode mode,
                                           uint32_t          offset,
                                           nsIInputStream ** result) override;

  virtual nsresult OpenOutputStreamForEntry(nsCacheEntry *     entry,
                                            nsCacheAccessMode  mode,
                                            uint32_t           offset,
                                            nsIOutputStream ** result) override;

  virtual nsresult        GetFileForEntry(nsCacheEntry *    entry,
                                          nsIFile **        result) override;

  virtual nsresult        OnDataSizeChange(nsCacheEntry * entry, int32_t deltaSize) override;
  
  virtual nsresult        Visit(nsICacheVisitor * visitor) override;

  virtual nsresult        EvictEntries(const char * clientID) override;

  /* Entry ownership */
  nsresult                GetOwnerDomains(const char *        clientID,
                                          uint32_t *          count,
                                          char ***            domains);
  nsresult                GetOwnerURIs(const char *           clientID,
                                       const nsACString &     ownerDomain,
                                       uint32_t *             count,
                                       char ***               uris);
  nsresult                SetOwnedKeys(const char *           clientID,
                                       const nsACString &     ownerDomain,
                                       const nsACString &     ownerUrl,
                                       uint32_t               count,
                                       const char **          keys);
  nsresult                GetOwnedKeys(const char *           clientID,
                                       const nsACString &     ownerDomain,
                                       const nsACString &     ownerUrl,
                                       uint32_t *             count,
                                       char ***               keys);
  nsresult                AddOwnedKey(const char *            clientID,
                                      const nsACString &      ownerDomain,
                                      const nsACString &      ownerURI,
                                      const nsACString &      key);
  nsresult                RemoveOwnedKey(const char *         clientID,
                                         const nsACString &   ownerDomain,
                                         const nsACString &   ownerURI,
                                         const nsACString &   key);
  nsresult                KeyIsOwned(const char *             clientID,
                                     const nsACString &       ownerDomain,
                                     const nsACString &       ownerURI,
                                     const nsACString &       key,
                                     bool *                 isOwned);

  nsresult                ClearKeysOwnedByDomain(const char *clientID,
                                                 const nsACString &ownerDomain);
  nsresult                EvictUnownedEntries(const char *clientID);

  static nsresult         BuildApplicationCacheGroupID(nsIURI *aManifestURL,
                                                       nsACString const &aOriginSuffix,
                                                       nsACString &_result);

  nsresult                ActivateCache(const nsCSubstring &group,
                                        const nsCSubstring &clientID);
  bool                    IsActiveCache(const nsCSubstring &group,
                                        const nsCSubstring &clientID);
  nsresult                CreateApplicationCache(const nsACString &group,
                                                 nsIApplicationCache **out);

  nsresult                GetApplicationCache(const nsACString &clientID,
                                              nsIApplicationCache **out);
  nsresult                GetApplicationCache_Unlocked(const nsACString &clientID,
                                                       nsIApplicationCache **out);

  nsresult                GetActiveCache(const nsACString &group,
                                         nsIApplicationCache **out);

  nsresult                DeactivateGroup(const nsACString &group);

  nsresult                ChooseApplicationCache(const nsACString &key,
                                                 nsILoadContextInfo *loadContext,
                                                 nsIApplicationCache **out);

  nsresult                CacheOpportunistically(nsIApplicationCache* cache,
                                                 const nsACString &key);

  nsresult                Evict(nsILoadContextInfo *aInfo);
  nsresult                Evict(mozilla::OriginAttributesPattern const &aPattern);

  nsresult                GetGroups(uint32_t *count,char ***keys);

  nsresult                GetGroupsTimeOrdered(uint32_t *count,
                                               char ***keys);

  bool                    IsLocked(const nsACString &key);
  void                    Lock(const nsACString &key);
  void                    Unlock(const nsACString &key);

  /**
   * Preference accessors
   */

  void                    SetCacheParentDirectory(nsIFile * parentDir);
  void                    SetCapacity(uint32_t  capacity);
  void                    SetAutoShutdown() { mAutoShutdown = true; }
  bool                    AutoShutdown(nsIApplicationCache * aAppCache);

  nsIFile *               BaseDirectory() { return mBaseDirectory; }
  nsIFile *               CacheDirectory() { return mCacheDirectory; }
  uint32_t                CacheCapacity() { return mCacheCapacity; }
  uint32_t                CacheSize();
  uint32_t                EntryCount();

private:
  ~nsOfflineCacheDevice();

  friend class nsApplicationCache;

  static bool GetStrictFileOriginPolicy();

  bool     Initialized() { return mDB != nullptr; }

  nsresult InitActiveCaches();
  nsresult UpdateEntry(nsCacheEntry *entry);
  nsresult UpdateEntrySize(nsCacheEntry *entry, uint32_t newSize);
  nsresult DeleteEntry(nsCacheEntry *entry, bool deleteData);
  nsresult DeleteData(nsCacheEntry *entry);
  nsresult EnableEvictionObserver();
  nsresult DisableEvictionObserver();

  bool CanUseCache(nsIURI *keyURI, const nsACString &clientID, nsILoadContextInfo *loadContext);

  nsresult MarkEntry(const nsCString &clientID,
                     const nsACString &key,
                     uint32_t typeBits);
  nsresult UnmarkEntry(const nsCString &clientID,
                       const nsACString &key,
                       uint32_t typeBits);

  nsresult CacheOpportunistically(const nsCString &clientID,
                                  const nsACString &key);
  nsresult GetTypes(const nsCString &clientID,
                    const nsACString &key,
                    uint32_t *typeBits);

  nsresult GetMatchingNamespace(const nsCString &clientID,
                                const nsACString &key,
                                nsIApplicationCacheNamespace **out);
  nsresult GatherEntries(const nsCString &clientID,
                         uint32_t typeBits,
                         uint32_t *count,
                         char *** values);
  nsresult AddNamespace(const nsCString &clientID,
                        nsIApplicationCacheNamespace *ns);

  nsresult GetUsage(const nsACString &clientID,
                    uint32_t *usage);

  nsresult RunSimpleQuery(mozIStorageStatement *statment,
                          uint32_t resultIndex,
                          uint32_t * count,
                          char *** values);

  nsCOMPtr<mozIStorageConnection>          mDB;
  RefPtr<nsOfflineCacheEvictionFunction> mEvictionFunction;

  nsCOMPtr<mozIStorageStatement>  mStatement_CacheSize;
  nsCOMPtr<mozIStorageStatement>  mStatement_ApplicationCacheSize;
  nsCOMPtr<mozIStorageStatement>  mStatement_EntryCount;
  nsCOMPtr<mozIStorageStatement>  mStatement_UpdateEntry;
  nsCOMPtr<mozIStorageStatement>  mStatement_UpdateEntrySize;
  nsCOMPtr<mozIStorageStatement>  mStatement_DeleteEntry;
  nsCOMPtr<mozIStorageStatement>  mStatement_FindEntry;
  nsCOMPtr<mozIStorageStatement>  mStatement_BindEntry;
  nsCOMPtr<mozIStorageStatement>  mStatement_ClearDomain;
  nsCOMPtr<mozIStorageStatement>  mStatement_MarkEntry;
  nsCOMPtr<mozIStorageStatement>  mStatement_UnmarkEntry;
  nsCOMPtr<mozIStorageStatement>  mStatement_GetTypes;
  nsCOMPtr<mozIStorageStatement>  mStatement_FindNamespaceEntry;
  nsCOMPtr<mozIStorageStatement>  mStatement_InsertNamespaceEntry;
  nsCOMPtr<mozIStorageStatement>  mStatement_CleanupUnmarked;
  nsCOMPtr<mozIStorageStatement>  mStatement_GatherEntries;
  nsCOMPtr<mozIStorageStatement>  mStatement_ActivateClient;
  nsCOMPtr<mozIStorageStatement>  mStatement_DeactivateGroup;
  nsCOMPtr<mozIStorageStatement>  mStatement_FindClient;
  nsCOMPtr<mozIStorageStatement>  mStatement_FindClientByNamespace;
  nsCOMPtr<mozIStorageStatement>  mStatement_EnumerateApps;
  nsCOMPtr<mozIStorageStatement>  mStatement_EnumerateGroups;
  nsCOMPtr<mozIStorageStatement>  mStatement_EnumerateGroupsTimeOrder;

  nsCOMPtr<nsIFile>               mBaseDirectory;
  nsCOMPtr<nsIFile>               mCacheDirectory;
  uint32_t                        mCacheCapacity; // in bytes
  int32_t                         mDeltaCounter;
  bool                            mAutoShutdown;

  mozilla::Mutex                  mLock;

  nsInterfaceHashtable<nsCStringHashKey, nsIWeakReference> mCaches;
  nsClassHashtable<nsCStringHashKey, nsCString> mActiveCachesByGroup;
  nsTHashtable<nsCStringHashKey> mActiveCaches;
  nsTHashtable<nsCStringHashKey> mLockedEntries;

  nsCOMPtr<nsIThread> mInitThread;
};

#endif // nsOfflineCacheDevice_h__