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/*
* Copyright (C) 2013 Apple 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
*/
#pragma once
#if ENABLE(DATABASE_PROCESS)
#include "ChildProcess.h"
#include "SandboxExtension.h"
#include <WebCore/IDBBackingStore.h>
#include <WebCore/IDBServer.h>
#include <WebCore/UniqueIDBDatabase.h>
#include <wtf/CrossThreadTask.h>
#include <wtf/NeverDestroyed.h>
namespace WebCore {
class SessionID;
struct SecurityOriginData;
}
namespace WebKit {
class DatabaseToWebProcessConnection;
enum class WebsiteDataType;
struct DatabaseProcessCreationParameters;
class DatabaseProcess : public ChildProcess
#if ENABLE(INDEXED_DATABASE)
, public WebCore::IDBServer::IDBBackingStoreTemporaryFileHandler
#endif
{
WTF_MAKE_NONCOPYABLE(DatabaseProcess);
friend class NeverDestroyed<DatabaseProcess>;
public:
static DatabaseProcess& singleton();
~DatabaseProcess();
#if ENABLE(INDEXED_DATABASE)
const String& indexedDatabaseDirectory() const { return m_indexedDatabaseDirectory; }
void ensureIndexedDatabaseRelativePathExists(const String&);
String absoluteIndexedDatabasePathFromDatabaseRelativePath(const String&);
WebCore::IDBServer::IDBServer& idbServer();
#endif
WorkQueue& queue() { return m_queue.get(); }
void postDatabaseTask(CrossThreadTask&&);
#if ENABLE(INDEXED_DATABASE)
// WebCore::IDBServer::IDBBackingStoreFileHandler
void prepareForAccessToTemporaryFile(const String& path) final;
void accessToTemporaryFileComplete(const String& path) final;
#endif
#if ENABLE(SANDBOX_EXTENSIONS)
void getSandboxExtensionsForBlobFiles(const Vector<String>& filenames, std::function<void (SandboxExtension::HandleArray&&)> completionHandler);
#endif
private:
DatabaseProcess();
// ChildProcess
void initializeProcess(const ChildProcessInitializationParameters&) override;
void initializeProcessName(const ChildProcessInitializationParameters&) override;
void initializeSandbox(const ChildProcessInitializationParameters&, SandboxInitializationParameters&) override;
void initializeConnection(IPC::Connection*) override;
bool shouldTerminate() override;
// IPC::Connection::Client
void didReceiveMessage(IPC::Connection&, IPC::Decoder&) override;
void didClose(IPC::Connection&) override;
void didReceiveDatabaseProcessMessage(IPC::Connection&, IPC::Decoder&);
// Message Handlers
void initializeDatabaseProcess(const DatabaseProcessCreationParameters&);
void createDatabaseToWebProcessConnection();
void fetchWebsiteData(WebCore::SessionID, OptionSet<WebsiteDataType> websiteDataTypes, uint64_t callbackID);
void deleteWebsiteData(WebCore::SessionID, OptionSet<WebsiteDataType> websiteDataTypes, std::chrono::system_clock::time_point modifiedSince, uint64_t callbackID);
void deleteWebsiteDataForOrigins(WebCore::SessionID, OptionSet<WebsiteDataType> websiteDataTypes, const Vector<WebCore::SecurityOriginData>& origins, uint64_t callbackID);
#if ENABLE(SANDBOX_EXTENSIONS)
void grantSandboxExtensionsForBlobs(const Vector<String>& paths, const SandboxExtension::HandleArray&);
void didGetSandboxExtensionsForBlobFiles(uint64_t requestID, SandboxExtension::HandleArray&&);
#endif
#if ENABLE(INDEXED_DATABASE)
Vector<WebCore::SecurityOriginData> indexedDatabaseOrigins();
#endif
// For execution on work queue thread only
void performNextDatabaseTask();
void ensurePathExists(const String&);
Vector<RefPtr<DatabaseToWebProcessConnection>> m_databaseToWebProcessConnections;
Ref<WorkQueue> m_queue;
#if ENABLE(INDEXED_DATABASE)
String m_indexedDatabaseDirectory;
RefPtr<WebCore::IDBServer::IDBServer> m_idbServer;
#endif
HashMap<String, RefPtr<SandboxExtension>> m_blobTemporaryFileSandboxExtensions;
HashMap<uint64_t, std::function<void (SandboxExtension::HandleArray&&)>> m_sandboxExtensionForBlobsCompletionHandlers;
Deque<CrossThreadTask> m_databaseTasks;
Lock m_databaseTaskMutex;
};
} // namespace WebKit
#endif // ENABLE(DATABASE_PROCESS)
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