Remove IDBBackingStoreTemporaryFileHandler
[WebKit-https.git] / Source / WebCore / Modules / indexeddb / server / IDBServer.h
1 /*
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3  *
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5  * modification, are permitted provided that the following conditions
6  * are met:
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10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
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15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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23  * THE POSSIBILITY OF SUCH DAMAGE.
24  */
25
26 #pragma once
27
28 #if ENABLE(INDEXED_DATABASE)
29
30 #include "IDBConnectionToClient.h"
31 #include "IDBDatabaseIdentifier.h"
32 #include "StorageQuotaManager.h"
33 #include "StorageQuotaUser.h"
34 #include "UniqueIDBDatabase.h"
35 #include "UniqueIDBDatabaseConnection.h"
36 #include <pal/HysteresisActivity.h>
37 #include <pal/SessionID.h>
38 #include <wtf/CrossThreadTaskHandler.h>
39 #include <wtf/HashMap.h>
40 #include <wtf/Lock.h>
41 #include <wtf/Ref.h>
42 #include <wtf/RefCounted.h>
43 #include <wtf/RefPtr.h>
44 #include <wtf/WeakPtr.h>
45
46 namespace WebCore {
47
48 class IDBCursorInfo;
49 class IDBRequestData;
50 class IDBValue;
51 class StorageQuotaManager;
52
53 struct IDBGetRecordData;
54
55 namespace IDBServer {
56
57 enum class ShouldForceStop : bool { No, Yes };
58
59 class IDBServer : public RefCounted<IDBServer>, public CrossThreadTaskHandler, public CanMakeWeakPtr<IDBServer> {
60 public:
61     using QuotaManagerGetter = WTF::Function<StorageQuotaManager*(PAL::SessionID, const ClientOrigin&)>;
62     static Ref<IDBServer> create(PAL::SessionID, QuotaManagerGetter&&);
63     WEBCORE_EXPORT static Ref<IDBServer> create(PAL::SessionID, const String& databaseDirectoryPath, QuotaManagerGetter&&);
64
65     WEBCORE_EXPORT void registerConnection(IDBConnectionToClient&);
66     WEBCORE_EXPORT void unregisterConnection(IDBConnectionToClient&);
67
68     // Operations requested by the client.
69     WEBCORE_EXPORT void openDatabase(const IDBRequestData&);
70     WEBCORE_EXPORT void deleteDatabase(const IDBRequestData&);
71     WEBCORE_EXPORT void abortTransaction(const IDBResourceIdentifier&);
72     WEBCORE_EXPORT void commitTransaction(const IDBResourceIdentifier&);
73     WEBCORE_EXPORT void didFinishHandlingVersionChangeTransaction(uint64_t databaseConnectionIdentifier, const IDBResourceIdentifier&);
74     WEBCORE_EXPORT void createObjectStore(const IDBRequestData&, const IDBObjectStoreInfo&);
75     WEBCORE_EXPORT void renameObjectStore(const IDBRequestData&, uint64_t objectStoreIdentifier, const String& newName);
76     WEBCORE_EXPORT void deleteObjectStore(const IDBRequestData&, const String& objectStoreName);
77     WEBCORE_EXPORT void clearObjectStore(const IDBRequestData&, uint64_t objectStoreIdentifier);
78     WEBCORE_EXPORT void createIndex(const IDBRequestData&, const IDBIndexInfo&);
79     WEBCORE_EXPORT void deleteIndex(const IDBRequestData&, uint64_t objectStoreIdentifier, const String& indexName);
80     WEBCORE_EXPORT void renameIndex(const IDBRequestData&, uint64_t objectStoreIdentifier, uint64_t indexIdentifier, const String& newName);
81     WEBCORE_EXPORT void putOrAdd(const IDBRequestData&, const IDBKeyData&, const IDBValue&, IndexedDB::ObjectStoreOverwriteMode);
82     WEBCORE_EXPORT void getRecord(const IDBRequestData&, const IDBGetRecordData&);
83     WEBCORE_EXPORT void getAllRecords(const IDBRequestData&, const IDBGetAllRecordsData&);
84     WEBCORE_EXPORT void getCount(const IDBRequestData&, const IDBKeyRangeData&);
85     WEBCORE_EXPORT void deleteRecord(const IDBRequestData&, const IDBKeyRangeData&);
86     WEBCORE_EXPORT void openCursor(const IDBRequestData&, const IDBCursorInfo&);
87     WEBCORE_EXPORT void iterateCursor(const IDBRequestData&, const IDBIterateCursorData&);
88
89     WEBCORE_EXPORT void establishTransaction(uint64_t databaseConnectionIdentifier, const IDBTransactionInfo&);
90     WEBCORE_EXPORT void databaseConnectionPendingClose(uint64_t databaseConnectionIdentifier);
91     WEBCORE_EXPORT void databaseConnectionClosed(uint64_t databaseConnectionIdentifier);
92     WEBCORE_EXPORT void abortOpenAndUpgradeNeeded(uint64_t databaseConnectionIdentifier, const IDBResourceIdentifier& transactionIdentifier);
93     WEBCORE_EXPORT void didFireVersionChangeEvent(uint64_t databaseConnectionIdentifier, const IDBResourceIdentifier& requestIdentifier);
94     WEBCORE_EXPORT void openDBRequestCancelled(const IDBRequestData&);
95     WEBCORE_EXPORT void confirmDidCloseFromServer(uint64_t databaseConnectionIdentifier);
96
97     WEBCORE_EXPORT void getAllDatabaseNames(IDBConnectionIdentifier serverConnectionIdentifier, const SecurityOriginData& mainFrameOrigin, const SecurityOriginData& openingOrigin, uint64_t callbackID);
98
99     void postDatabaseTask(CrossThreadTask&&);
100     void postDatabaseTaskReply(CrossThreadTask&&);
101
102     void registerDatabaseConnection(UniqueIDBDatabaseConnection&);
103     void unregisterDatabaseConnection(UniqueIDBDatabaseConnection&);
104     void registerTransaction(UniqueIDBDatabaseTransaction&);
105     void unregisterTransaction(UniqueIDBDatabaseTransaction&);
106
107     std::unique_ptr<UniqueIDBDatabase> closeAndTakeUniqueIDBDatabase(UniqueIDBDatabase&);
108
109     std::unique_ptr<IDBBackingStore> createBackingStore(const IDBDatabaseIdentifier&);
110
111     WEBCORE_EXPORT void closeAndDeleteDatabasesModifiedSince(WallTime, Function<void ()>&& completionHandler);
112     WEBCORE_EXPORT void closeAndDeleteDatabasesForOrigins(const Vector<SecurityOriginData>&, Function<void ()>&& completionHandler);
113
114     void requestSpace(const ClientOrigin&, uint64_t taskSize, CompletionHandler<void(StorageQuotaManager::Decision)>&&);
115     void increasePotentialSpaceUsed(const ClientOrigin&, uint64_t taskSize);
116     void decreasePotentialSpaceUsed(const ClientOrigin&, uint64_t taskSize);
117     void increaseSpaceUsed(const ClientOrigin&, uint64_t size);
118     void decreaseSpaceUsed(const ClientOrigin&, uint64_t size);
119     void resetSpaceUsed(const ClientOrigin&);
120
121     void initializeQuotaUser(const ClientOrigin& origin) { ensureQuotaUser(origin); }
122
123     WEBCORE_EXPORT void tryStop(ShouldForceStop);
124     WEBCORE_EXPORT void resume();
125
126 private:
127     IDBServer(PAL::SessionID, QuotaManagerGetter&&);
128     IDBServer(PAL::SessionID, const String& databaseDirectoryPath, QuotaManagerGetter&&);
129
130     UniqueIDBDatabase& getOrCreateUniqueIDBDatabase(const IDBDatabaseIdentifier&);
131     
132     String databaseDirectoryPathIsolatedCopy() const { return m_databaseDirectoryPath.isolatedCopy(); }
133
134     void performGetAllDatabaseNames(IDBConnectionIdentifier serverConnectionIdentifier, const SecurityOriginData& mainFrameOrigin, const SecurityOriginData& openingOrigin, uint64_t callbackID);
135     void didGetAllDatabaseNames(IDBConnectionIdentifier serverConnectionIdentifier, uint64_t callbackID, const Vector<String>& databaseNames);
136
137     void performCloseAndDeleteDatabasesModifiedSince(WallTime, uint64_t callbackID);
138     void performCloseAndDeleteDatabasesForOrigins(const Vector<SecurityOriginData>&, uint64_t callbackID);
139     void didPerformCloseAndDeleteDatabases(uint64_t callbackID);
140
141     void upgradeFilesIfNecessary();
142     void removeDatabasesModifiedSinceForVersion(WallTime, const String&);
143     void removeDatabasesWithOriginsForVersion(const Vector<SecurityOriginData>&, const String&);
144
145     class QuotaUser final : public StorageQuotaUser {
146         WTF_MAKE_FAST_ALLOCATED;
147     public:
148         QuotaUser(IDBServer&, StorageQuotaManager*, ClientOrigin&&);
149         ~QuotaUser();
150
151         StorageQuotaManager* manager() { return m_manager.get(); }
152
153         void setSpaceUsed(uint64_t spaceUsed) { m_spaceUsed = spaceUsed; }
154         void resetSpaceUsed();
155
156         void increasePotentialSpaceUsed(uint64_t increase) { m_estimatedSpaceIncrease += increase; }
157         void decreasePotentialSpaceUsed(uint64_t decrease)
158         {
159             ASSERT(m_estimatedSpaceIncrease >= decrease);
160             m_estimatedSpaceIncrease -= decrease;
161         }
162         void increaseSpaceUsed(uint64_t size);
163         void decreaseSpaceUsed(uint64_t size);
164
165         void initializeSpaceUsed(uint64_t spaceUsed);
166
167     private:
168         uint64_t spaceUsed() const final
169         {
170             ASSERT(m_isInitialized);
171             return m_spaceUsed + m_estimatedSpaceIncrease;
172         }
173         void computeSpaceUsed() final;
174         void whenInitialized(CompletionHandler<void()>&&) final;
175
176         IDBServer& m_server;
177         WeakPtr<StorageQuotaManager> m_manager;
178         ClientOrigin m_origin;
179         bool m_isInitialized { false };
180         uint64_t m_spaceUsed { 0 };
181         uint64_t m_estimatedSpaceIncrease { 0 };
182         CompletionHandler<void()> m_initializationCallback;
183     };
184
185     WEBCORE_EXPORT QuotaUser& ensureQuotaUser(const ClientOrigin&);
186     void startComputingSpaceUsedForOrigin(const ClientOrigin&);
187     void computeSpaceUsedForOrigin(const ClientOrigin&);
188     void finishComputingSpaceUsedForOrigin(const ClientOrigin&, uint64_t spaceUsed);
189
190     PAL::SessionID m_sessionID;
191     HashMap<IDBConnectionIdentifier, RefPtr<IDBConnectionToClient>> m_connectionMap;
192     HashMap<IDBDatabaseIdentifier, std::unique_ptr<UniqueIDBDatabase>> m_uniqueIDBDatabaseMap;
193
194     HashMap<uint64_t, UniqueIDBDatabaseConnection*> m_databaseConnections;
195     HashMap<IDBResourceIdentifier, UniqueIDBDatabaseTransaction*> m_transactions;
196
197     HashMap<uint64_t, Function<void ()>> m_deleteDatabaseCompletionHandlers;
198
199     String m_databaseDirectoryPath;
200
201     HashMap<ClientOrigin, std::unique_ptr<QuotaUser>> m_quotaUsers;
202     QuotaManagerGetter m_quotaManagerGetter;
203 };
204
205 } // namespace IDBServer
206 } // namespace WebCore
207
208 #endif // ENABLE(INDEXED_DATABASE)