1/*
2 * Copyright (C) 2009 Google 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 are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "config.h"
32#include "bindings/v8/DOMWrapperWorld.h"
33
34#include "V8Window.h"
35#include "bindings/v8/DOMDataStore.h"
36#include "bindings/v8/V8Binding.h"
37#include "bindings/v8/V8DOMActivityLogger.h"
38#include "bindings/v8/V8DOMWrapper.h"
39#include "bindings/v8/WrapperTypeInfo.h"
40#include "core/dom/ScriptExecutionContext.h"
41#include "wtf/HashTraits.h"
42#include "wtf/MainThread.h"
43#include "wtf/StdLibExtras.h"
44
45namespace WebCore {
46
47int DOMWrapperWorld::isolatedWorldCount = 0;
48static bool initializingWindow = false;
49
50void DOMWrapperWorld::setInitializingWindow(bool initializing)
51{
52    initializingWindow = initializing;
53}
54
55PassRefPtr<DOMWrapperWorld> DOMWrapperWorld::createMainWorld()
56{
57    return adoptRef(new DOMWrapperWorld(mainWorldId, mainWorldExtensionGroup));
58}
59
60DOMWrapperWorld::DOMWrapperWorld(int worldId, int extensionGroup)
61    : m_worldId(worldId)
62    , m_extensionGroup(extensionGroup)
63{
64    if (isIsolatedWorld())
65        m_domDataStore = adoptPtr(new DOMDataStore(IsolatedWorld));
66}
67
68DOMWrapperWorld* DOMWrapperWorld::current()
69{
70    ASSERT(v8::Context::InContext());
71    v8::Handle<v8::Context> context = v8::Context::GetCurrent();
72    if (!V8DOMWrapper::isWrapperOfType(toInnerGlobalObject(context), &V8Window::info))
73        return 0;
74    ASSERT(isMainThread());
75    if (DOMWrapperWorld* world = isolatedWorld(context))
76        return world;
77    return mainThreadNormalWorld();
78}
79
80DOMWrapperWorld* mainThreadNormalWorld()
81{
82    ASSERT(isMainThread());
83    DEFINE_STATIC_LOCAL(RefPtr<DOMWrapperWorld>, cachedNormalWorld, (DOMWrapperWorld::createMainWorld()));
84    return cachedNormalWorld.get();
85}
86
87// FIXME: Remove this function. There is currently an issue with the inspector related to the call to dispatchDidClearWindowObjectInWorld in ScriptController::windowShell.
88DOMWrapperWorld* existingWindowShellWorkaroundWorld()
89{
90    DEFINE_STATIC_LOCAL(RefPtr<DOMWrapperWorld>, world, (adoptRef(new DOMWrapperWorld(DOMWrapperWorld::mainWorldId - 1, DOMWrapperWorld::mainWorldExtensionGroup - 1))));
91    return world.get();
92}
93
94bool DOMWrapperWorld::contextHasCorrectPrototype(v8::Handle<v8::Context> context)
95{
96    ASSERT(isMainThread());
97    if (initializingWindow)
98        return true;
99    return V8DOMWrapper::isWrapperOfType(toInnerGlobalObject(context), &V8Window::info);
100}
101
102void DOMWrapperWorld::setIsolatedWorldField(v8::Handle<v8::Context> context)
103{
104    context->SetAlignedPointerInEmbedderData(v8ContextIsolatedWorld, isMainWorld() ? 0 : this);
105}
106
107typedef HashMap<int, DOMWrapperWorld*> WorldMap;
108static WorldMap& isolatedWorldMap()
109{
110    ASSERT(isMainThread());
111    DEFINE_STATIC_LOCAL(WorldMap, map, ());
112    return map;
113}
114
115void DOMWrapperWorld::getAllWorlds(Vector<RefPtr<DOMWrapperWorld> >& worlds)
116{
117    worlds.append(mainThreadNormalWorld());
118    WorldMap& isolatedWorlds = isolatedWorldMap();
119    for (WorldMap::iterator it = isolatedWorlds.begin(); it != isolatedWorlds.end(); ++it)
120        worlds.append(it->value);
121}
122
123DOMWrapperWorld::~DOMWrapperWorld()
124{
125    ASSERT(!isMainWorld());
126
127    if (!isIsolatedWorld())
128        return;
129
130    WorldMap& map = isolatedWorldMap();
131    WorldMap::iterator i = map.find(m_worldId);
132    if (i == map.end()) {
133        ASSERT_NOT_REACHED();
134        return;
135    }
136    ASSERT(i->value == this);
137
138    map.remove(i);
139    isolatedWorldCount--;
140    ASSERT(map.size() == isolatedWorldCount);
141}
142
143PassRefPtr<DOMWrapperWorld> DOMWrapperWorld::ensureIsolatedWorld(int worldId, int extensionGroup)
144{
145    ASSERT(worldId > mainWorldId);
146
147    WorldMap& map = isolatedWorldMap();
148    WorldMap::AddResult result = map.add(worldId, 0);
149    RefPtr<DOMWrapperWorld> world = result.iterator->value;
150    if (world) {
151        ASSERT(world->worldId() == worldId);
152        ASSERT(world->extensionGroup() == extensionGroup);
153        return world.release();
154    }
155
156    world = adoptRef(new DOMWrapperWorld(worldId, extensionGroup));
157    result.iterator->value = world.get();
158    isolatedWorldCount++;
159    ASSERT(map.size() == isolatedWorldCount);
160
161    return world.release();
162}
163
164typedef HashMap<int, RefPtr<SecurityOrigin> > IsolatedWorldSecurityOriginMap;
165static IsolatedWorldSecurityOriginMap& isolatedWorldSecurityOrigins()
166{
167    ASSERT(isMainThread());
168    DEFINE_STATIC_LOCAL(IsolatedWorldSecurityOriginMap, map, ());
169    return map;
170}
171
172SecurityOrigin* DOMWrapperWorld::isolatedWorldSecurityOrigin()
173{
174    ASSERT(this->isIsolatedWorld());
175    IsolatedWorldSecurityOriginMap& origins = isolatedWorldSecurityOrigins();
176    IsolatedWorldSecurityOriginMap::iterator it = origins.find(worldId());
177    return it == origins.end() ? 0 : it->value.get();
178}
179
180void DOMWrapperWorld::setIsolatedWorldSecurityOrigin(int worldID, PassRefPtr<SecurityOrigin> securityOrigin)
181{
182    ASSERT(DOMWrapperWorld::isIsolatedWorldId(worldID));
183    if (securityOrigin)
184        isolatedWorldSecurityOrigins().set(worldID, securityOrigin);
185    else
186        isolatedWorldSecurityOrigins().remove(worldID);
187}
188
189void DOMWrapperWorld::clearIsolatedWorldSecurityOrigin(int worldID)
190{
191    ASSERT(DOMWrapperWorld::isIsolatedWorldId(worldID));
192    isolatedWorldSecurityOrigins().remove(worldID);
193}
194
195typedef HashMap<int, bool> IsolatedWorldContentSecurityPolicyMap;
196static IsolatedWorldContentSecurityPolicyMap& isolatedWorldContentSecurityPolicies()
197{
198    ASSERT(isMainThread());
199    DEFINE_STATIC_LOCAL(IsolatedWorldContentSecurityPolicyMap, map, ());
200    return map;
201}
202
203bool DOMWrapperWorld::isolatedWorldHasContentSecurityPolicy()
204{
205    ASSERT(this->isIsolatedWorld());
206    IsolatedWorldContentSecurityPolicyMap& policies = isolatedWorldContentSecurityPolicies();
207    IsolatedWorldContentSecurityPolicyMap::iterator it = policies.find(worldId());
208    return it == policies.end() ? false : it->value;
209}
210
211void DOMWrapperWorld::setIsolatedWorldContentSecurityPolicy(int worldID, const String& policy)
212{
213    ASSERT(DOMWrapperWorld::isIsolatedWorldId(worldID));
214    if (!policy.isEmpty())
215        isolatedWorldContentSecurityPolicies().set(worldID, true);
216    else
217        isolatedWorldContentSecurityPolicies().remove(worldID);
218}
219
220void DOMWrapperWorld::clearIsolatedWorldContentSecurityPolicy(int worldID)
221{
222    ASSERT(DOMWrapperWorld::isIsolatedWorldId(worldID));
223    isolatedWorldContentSecurityPolicies().remove(worldID);
224}
225
226typedef HashMap<int, OwnPtr<V8DOMActivityLogger>, WTF::IntHash<int>, WTF::UnsignedWithZeroKeyHashTraits<int> > DOMActivityLoggerMap;
227static DOMActivityLoggerMap& domActivityLoggers()
228{
229    ASSERT(isMainThread());
230    DEFINE_STATIC_LOCAL(DOMActivityLoggerMap, map, ());
231    return map;
232}
233
234void DOMWrapperWorld::setActivityLogger(int worldId, PassOwnPtr<V8DOMActivityLogger> logger)
235{
236    domActivityLoggers().set(worldId, logger);
237}
238
239V8DOMActivityLogger* DOMWrapperWorld::activityLogger(int worldId)
240{
241    DOMActivityLoggerMap& loggers = domActivityLoggers();
242    DOMActivityLoggerMap::iterator it = loggers.find(worldId);
243    return it == loggers.end() ? 0 : it->value.get();
244}
245
246} // namespace WebCore
247