/*
* 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/v8/NewScriptState.h"
#include "platform/weborigin/SecurityOrigin.h"
#include "wtf/MainThread.h"
#include "wtf/PassRefPtr.h"
#include "wtf/RefCounted.h"
#include "wtf/RefPtr.h"
#include "wtf/text/WTFString.h"
#include <v8.h>
namespace WebCore {
class DOMDataStore;
class ScriptController;
class ExecutionContext;
enum WorldIdConstants {
MainWorldId = 0,
// Embedder isolated worlds can use IDs in [1, 1<<29).
EmbedderWorldIdLimit = (1 << 29),
ScriptPreprocessorIsolatedWorldId,
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 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 NewScriptState::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();
// 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>);
static void clearIsolatedWorldSecurityOrigin(int worldID);
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);
static void clearIsolatedWorldContentSecurityPolicy(int worldID);
bool isolatedWorldHasContentSecurityPolicy();
bool isMainWorld() const { return m_worldId == MainWorldId; }
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() { 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:
DOMWrapperWorld(int worldId, int extensionGroup);
static unsigned isolatedWorldCount;
static DOMWrapperWorld* worldOfInitializingWindow;
const int m_worldId;
const int m_extensionGroup;
OwnPtr<DOMDataStore> m_domDataStore;
};
} // namespace WebCore
#endif // DOMWrapperWorld_h