1 /*
2 * Copyright (C) 2008 Apple Inc. All Rights Reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "config.h"
27 #include "StorageNamespaceImpl.h"
28
29 #if ENABLE(DOM_STORAGE)
30
31 #include "SecurityOriginHash.h"
32 #include "StorageAreaImpl.h"
33 #include "StorageMap.h"
34 #include "StorageSyncManager.h"
35 #include "StorageTracker.h"
36 #include <wtf/StdLibExtras.h>
37 #include <wtf/text/StringHash.h>
38
39 #ifdef ANDROID
40 #include "Page.h"
41 #endif
42
43 namespace WebCore {
44
45 typedef HashMap<String, StorageNamespace*> LocalStorageNamespaceMap;
46
localStorageNamespaceMap()47 static LocalStorageNamespaceMap& localStorageNamespaceMap()
48 {
49 DEFINE_STATIC_LOCAL(LocalStorageNamespaceMap, localStorageNamespaceMap, ());
50 return localStorageNamespaceMap;
51 }
52
localStorageNamespace(const String & path,unsigned quota)53 PassRefPtr<StorageNamespace> StorageNamespaceImpl::localStorageNamespace(const String& path, unsigned quota)
54 {
55 const String lookupPath = path.isNull() ? String("") : path;
56 LocalStorageNamespaceMap::iterator it = localStorageNamespaceMap().find(lookupPath);
57 if (it == localStorageNamespaceMap().end()) {
58 RefPtr<StorageNamespace> storageNamespace = adoptRef(new StorageNamespaceImpl(LocalStorage, lookupPath, quota));
59 localStorageNamespaceMap().set(lookupPath, storageNamespace.get());
60 return storageNamespace.release();
61 }
62
63 return it->second;
64 }
65
sessionStorageNamespace(unsigned quota)66 PassRefPtr<StorageNamespace> StorageNamespaceImpl::sessionStorageNamespace(unsigned quota)
67 {
68 return adoptRef(new StorageNamespaceImpl(SessionStorage, String(), quota));
69 }
70
StorageNamespaceImpl(StorageType storageType,const String & path,unsigned quota)71 StorageNamespaceImpl::StorageNamespaceImpl(StorageType storageType, const String& path, unsigned quota)
72 : m_storageType(storageType)
73 , m_path(path.crossThreadString())
74 , m_syncManager(0)
75 , m_quota(quota)
76 , m_isShutdown(false)
77 {
78 if (m_storageType == LocalStorage && !m_path.isEmpty())
79 m_syncManager = StorageSyncManager::create(m_path);
80 }
81
~StorageNamespaceImpl()82 StorageNamespaceImpl::~StorageNamespaceImpl()
83 {
84 ASSERT(isMainThread());
85
86 if (m_storageType == LocalStorage) {
87 ASSERT(localStorageNamespaceMap().get(m_path) == this);
88 localStorageNamespaceMap().remove(m_path);
89 }
90
91 if (!m_isShutdown)
92 close();
93 }
94
copy()95 PassRefPtr<StorageNamespace> StorageNamespaceImpl::copy()
96 {
97 ASSERT(isMainThread());
98 ASSERT(!m_isShutdown);
99 ASSERT(m_storageType == SessionStorage);
100
101 RefPtr<StorageNamespaceImpl> newNamespace = adoptRef(new StorageNamespaceImpl(m_storageType, m_path, m_quota));
102
103 StorageAreaMap::iterator end = m_storageAreaMap.end();
104 for (StorageAreaMap::iterator i = m_storageAreaMap.begin(); i != end; ++i)
105 newNamespace->m_storageAreaMap.set(i->first, i->second->copy());
106 return newNamespace.release();
107 }
108
storageArea(PassRefPtr<SecurityOrigin> prpOrigin)109 PassRefPtr<StorageArea> StorageNamespaceImpl::storageArea(PassRefPtr<SecurityOrigin> prpOrigin)
110 {
111 ASSERT(isMainThread());
112 ASSERT(!m_isShutdown);
113
114 RefPtr<SecurityOrigin> origin = prpOrigin;
115 RefPtr<StorageAreaImpl> storageArea;
116 if ((storageArea = m_storageAreaMap.get(origin)))
117 return storageArea.release();
118
119 storageArea = StorageAreaImpl::create(m_storageType, origin, m_syncManager, m_quota);
120 m_storageAreaMap.set(origin.release(), storageArea);
121 return storageArea.release();
122 }
123
close()124 void StorageNamespaceImpl::close()
125 {
126 ASSERT(isMainThread());
127
128 if (m_isShutdown)
129 return;
130
131 // If we're session storage, we shouldn't need to do any work here.
132 if (m_storageType == SessionStorage) {
133 ASSERT(!m_syncManager);
134 return;
135 }
136
137 StorageAreaMap::iterator end = m_storageAreaMap.end();
138 for (StorageAreaMap::iterator it = m_storageAreaMap.begin(); it != end; ++it)
139 it->second->close();
140
141 if (m_syncManager)
142 m_syncManager->close();
143
144 m_isShutdown = true;
145 }
146
147 #ifdef ANDROID
clear(Page * page)148 void StorageNamespaceImpl::clear(Page* page)
149 {
150 ASSERT(isMainThread());
151 if (m_isShutdown)
152 return;
153
154 // Clear all the keys for each of the storage areas.
155 StorageAreaMap::iterator end = m_storageAreaMap.end();
156 for (StorageAreaMap::iterator it = m_storageAreaMap.begin(); it != end; ++it) {
157 // if there is no page provided, then the user tried to clear storage
158 // with only pages in private browsing mode open. So we do not need to
159 // provide a Frame* here (as the frame is only used to dispatch storage events
160 // and private browsing pages won't be using them).
161 it->second->clear(page ? page->mainFrame() : 0);
162 }
163 }
164 #endif
165
unlock()166 void StorageNamespaceImpl::unlock()
167 {
168 // Because there's a single event loop per-process, this is a no-op.
169 }
170
clearOriginForDeletion(SecurityOrigin * origin)171 void StorageNamespaceImpl::clearOriginForDeletion(SecurityOrigin* origin)
172 {
173 ASSERT(isMainThread());
174
175 RefPtr<StorageAreaImpl> storageArea = m_storageAreaMap.get(origin);
176 if (storageArea)
177 storageArea->clearForOriginDeletion();
178 }
179
clearAllOriginsForDeletion()180 void StorageNamespaceImpl::clearAllOriginsForDeletion()
181 {
182 ASSERT(isMainThread());
183
184 StorageAreaMap::iterator end = m_storageAreaMap.end();
185 for (StorageAreaMap::iterator it = m_storageAreaMap.begin(); it != end; ++it)
186 it->second->clearForOriginDeletion();
187 }
188
sync()189 void StorageNamespaceImpl::sync()
190 {
191 ASSERT(isMainThread());
192 StorageAreaMap::iterator end = m_storageAreaMap.end();
193 for (StorageAreaMap::iterator it = m_storageAreaMap.begin(); it != end; ++it)
194 it->second->sync();
195 }
196
197 } // namespace WebCore
198
199 #endif // ENABLE(DOM_STORAGE)
200