| /* |
| * Copyright (C) 2009 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef DOMWrapperWorld_h |
| #define DOMWrapperWorld_h |
| |
| #include "bindings/core/v8/ScriptState.h" |
| #include "platform/weborigin/SecurityOrigin.h" |
| #include "wtf/MainThread.h" |
| #include "wtf/PassRefPtr.h" |
| #include "wtf/RefCounted.h" |
| #include "wtf/RefPtr.h" |
| #include <v8.h> |
| |
| namespace blink { |
| |
| class DOMDataStore; |
| |
| enum WorldIdConstants { |
| MainWorldId = 0, |
| // Embedder isolated worlds can use IDs in [1, 1<<29). |
| EmbedderWorldIdLimit = (1 << 29), |
| ScriptPreprocessorIsolatedWorldId, |
| PrivateScriptIsolatedWorldId, |
| IsolatedWorldIdLimit, |
| WorkerWorldId, |
| TestingWorldId, |
| }; |
| |
| // This class represent a collection of DOM wrappers for a specific world. |
| class DOMWrapperWorld : public RefCounted<DOMWrapperWorld> { |
| public: |
| static PassRefPtr<DOMWrapperWorld> create(int worldId = -1, int extensionGroup = -1); |
| |
| static const int mainWorldExtensionGroup = 0; |
| static const int privateScriptIsolatedWorldExtensionGroup = 1; |
| static PassRefPtr<DOMWrapperWorld> ensureIsolatedWorld(int worldId, int extensionGroup); |
| ~DOMWrapperWorld(); |
| void dispose(); |
| |
| static bool isolatedWorldsExist() { return isolatedWorldCount; } |
| static void allWorldsInMainThread(Vector<RefPtr<DOMWrapperWorld> >& worlds); |
| |
| static DOMWrapperWorld& world(v8::Handle<v8::Context> context) |
| { |
| return ScriptState::from(context)->world(); |
| } |
| |
| static DOMWrapperWorld& current(v8::Isolate* isolate) |
| { |
| if (isMainThread() && worldOfInitializingWindow) { |
| // It's possible that current() is being called while window is being initialized. |
| // In order to make current() workable during the initialization phase, |
| // we cache the world of the initializing window on worldOfInitializingWindow. |
| // If there is no initiazing window, worldOfInitializingWindow is 0. |
| return *worldOfInitializingWindow; |
| } |
| return world(isolate->GetCurrentContext()); |
| } |
| |
| static DOMWrapperWorld& mainWorld(); |
| static DOMWrapperWorld& privateScriptIsolatedWorld(); |
| |
| static void setIsolatedWorldHumanReadableName(int worldID, const String&); |
| String isolatedWorldHumanReadableName(); |
| |
| // Associates an isolated world (see above for description) with a security |
| // origin. XMLHttpRequest instances used in that world will be considered |
| // to come from that origin, not the frame's. |
| static void setIsolatedWorldSecurityOrigin(int worldId, PassRefPtr<SecurityOrigin>); |
| SecurityOrigin* isolatedWorldSecurityOrigin(); |
| |
| // Associated an isolated world with a Content Security Policy. Resources |
| // embedded into the main world's DOM from script executed in an isolated |
| // world should be restricted based on the isolated world's DOM, not the |
| // main world's. |
| // |
| // FIXME: Right now, resource injection simply bypasses the main world's |
| // DOM. More work is necessary to allow the isolated world's policy to be |
| // applied correctly. |
| static void setIsolatedWorldContentSecurityPolicy(int worldId, const String& policy); |
| bool isolatedWorldHasContentSecurityPolicy(); |
| |
| bool isMainWorld() const { return m_worldId == MainWorldId; } |
| bool isPrivateScriptIsolatedWorld() const { return m_worldId == PrivateScriptIsolatedWorldId; } |
| bool isWorkerWorld() const { return m_worldId == WorkerWorldId; } |
| bool isIsolatedWorld() const { return MainWorldId < m_worldId && m_worldId < IsolatedWorldIdLimit; } |
| |
| int worldId() const { return m_worldId; } |
| int extensionGroup() const { return m_extensionGroup; } |
| DOMDataStore& domDataStore() const { return *m_domDataStore; } |
| |
| static void setWorldOfInitializingWindow(DOMWrapperWorld* world) |
| { |
| ASSERT(isMainThread()); |
| worldOfInitializingWindow = world; |
| } |
| // FIXME: Remove this method once we fix crbug.com/345014. |
| static bool windowIsBeingInitialized() { return !!worldOfInitializingWindow; } |
| |
| private: |
| class DOMObjectHolderBase { |
| public: |
| DOMObjectHolderBase(v8::Isolate* isolate, v8::Handle<v8::Value> wrapper) |
| : m_wrapper(isolate, wrapper) |
| , m_world(0) |
| { |
| } |
| virtual ~DOMObjectHolderBase() { } |
| |
| DOMWrapperWorld* world() const { return m_world; } |
| void setWorld(DOMWrapperWorld* world) { m_world = world; } |
| void setWeak(void (*callback)(const v8::WeakCallbackData<v8::Value, DOMObjectHolderBase>&)) |
| { |
| m_wrapper.setWeak(this, callback); |
| } |
| |
| private: |
| ScopedPersistent<v8::Value> m_wrapper; |
| DOMWrapperWorld* m_world; |
| }; |
| |
| template<typename T> |
| class DOMObjectHolder : public DOMObjectHolderBase { |
| public: |
| static PassOwnPtr<DOMObjectHolder<T> > create(v8::Isolate* isolate, T* object, v8::Handle<v8::Value> wrapper) |
| { |
| return adoptPtr(new DOMObjectHolder(isolate, object, wrapper)); |
| } |
| |
| private: |
| DOMObjectHolder(v8::Isolate* isolate, T* object, v8::Handle<v8::Value> wrapper) |
| : DOMObjectHolderBase(isolate, wrapper) |
| , m_object(object) |
| { |
| } |
| |
| Persistent<T> m_object; |
| }; |
| |
| public: |
| template<typename T> |
| void registerDOMObjectHolder(v8::Isolate* isolate, T* object, v8::Handle<v8::Value> wrapper) |
| { |
| registerDOMObjectHolderInternal(DOMObjectHolder<T>::create(isolate, object, wrapper)); |
| } |
| |
| private: |
| DOMWrapperWorld(int worldId, int extensionGroup); |
| |
| static void weakCallbackForDOMObjectHolder(const v8::WeakCallbackData<v8::Value, DOMObjectHolderBase>&); |
| void registerDOMObjectHolderInternal(PassOwnPtr<DOMObjectHolderBase>); |
| void unregisterDOMObjectHolder(DOMObjectHolderBase*); |
| |
| static unsigned isolatedWorldCount; |
| static DOMWrapperWorld* worldOfInitializingWindow; |
| |
| const int m_worldId; |
| const int m_extensionGroup; |
| OwnPtr<DOMDataStore> m_domDataStore; |
| HashSet<OwnPtr<DOMObjectHolderBase> > m_domObjectHolders; |
| }; |
| |
| } // namespace blink |
| |
| #endif // DOMWrapperWorld_h |