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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.
*/
#include "config.h"
#include "DatabaseProcess.h"
#if ENABLE(DATABASE_PROCESS)
#include "AsyncTask.h"
#include "DatabaseProcessCreationParameters.h"
#include "DatabaseProcessMessages.h"
#include "DatabaseProcessProxyMessages.h"
#include "DatabaseToWebProcessConnection.h"
#include "UniqueIDBDatabase.h"
#include "WebCrossThreadCopier.h"
#include "WebOriginDataManager.h"
#include "WebOriginDataManagerMessages.h"
#include "WebOriginDataManagerProxyMessages.h"
#include <WebCore/FileSystem.h>
#include <WebCore/TextEncoding.h>
#include <wtf/MainThread.h>
using namespace WebCore;
namespace WebKit {
DatabaseProcess& DatabaseProcess::shared()
{
static NeverDestroyed<DatabaseProcess> databaseProcess;
return databaseProcess;
}
DatabaseProcess::DatabaseProcess()
: m_queue(adoptRef(*WorkQueue::create("com.apple.WebKit.DatabaseProcess").leakRef()))
, m_webOriginDataManager(std::make_unique<WebOriginDataManager>(this))
{
// Make sure the UTF8Encoding encoding and the text encoding maps have been built on the main thread before a background thread needs it.
// FIXME: https://bugs.webkit.org/show_bug.cgi?id=135365 - Need a more explicit way of doing this besides accessing the UTF8Encoding.
UTF8Encoding();
}
DatabaseProcess::~DatabaseProcess()
{
}
void DatabaseProcess::initializeConnection(IPC::Connection* connection)
{
ChildProcess::initializeConnection(connection);
}
bool DatabaseProcess::shouldTerminate()
{
return true;
}
void DatabaseProcess::didClose(IPC::Connection*)
{
RunLoop::current().stop();
}
void DatabaseProcess::didReceiveMessage(IPC::Connection* connection, IPC::MessageDecoder& decoder)
{
if (messageReceiverMap().dispatchMessage(connection, decoder))
return;
if (decoder.messageReceiverName() == Messages::DatabaseProcess::messageReceiverName()) {
didReceiveDatabaseProcessMessage(connection, decoder);
return;
}
}
void DatabaseProcess::didReceiveInvalidMessage(IPC::Connection*, IPC::StringReference, IPC::StringReference)
{
RunLoop::current().stop();
}
PassRefPtr<UniqueIDBDatabase> DatabaseProcess::getOrCreateUniqueIDBDatabase(const UniqueIDBDatabaseIdentifier& identifier)
{
auto addResult = m_idbDatabases.add(identifier, nullptr);
if (!addResult.isNewEntry)
return addResult.iterator->value;
RefPtr<UniqueIDBDatabase> database = UniqueIDBDatabase::create(identifier);
addResult.iterator->value = database.get();
return database.release();
}
void DatabaseProcess::removeUniqueIDBDatabase(const UniqueIDBDatabase& database)
{
const UniqueIDBDatabaseIdentifier& identifier = database.identifier();
ASSERT(m_idbDatabases.contains(identifier));
m_idbDatabases.remove(identifier);
}
void DatabaseProcess::initializeDatabaseProcess(const DatabaseProcessCreationParameters& parameters)
{
// *********
// IMPORTANT: Do not change the directory structure for indexed databases on disk without first consulting a reviewer from Apple (<rdar://problem/17454712>)
// *********
m_indexedDatabaseDirectory = parameters.indexedDatabaseDirectory;
SandboxExtension::consumePermanently(parameters.indexedDatabaseDirectoryExtensionHandle);
ensureIndexedDatabaseRelativePathExists(StringImpl::empty());
}
void DatabaseProcess::ensureIndexedDatabaseRelativePathExists(const String& relativePath)
{
postDatabaseTask(createAsyncTask(*this, &DatabaseProcess::ensurePathExists, absoluteIndexedDatabasePathFromDatabaseRelativePath(relativePath)));
}
void DatabaseProcess::ensurePathExists(const String& path)
{
ASSERT(!RunLoop::isMain());
if (!makeAllDirectories(path))
LOG_ERROR("Failed to make all directories for path '%s'", path.utf8().data());
}
String DatabaseProcess::absoluteIndexedDatabasePathFromDatabaseRelativePath(const String& relativePath)
{
// FIXME: pathByAppendingComponent() was originally designed to append individual atomic components.
// We don't have a function designed to append a multi-component subpath, but we should.
return pathByAppendingComponent(m_indexedDatabaseDirectory, relativePath);
}
void DatabaseProcess::postDatabaseTask(std::unique_ptr<AsyncTask> task)
{
ASSERT(RunLoop::isMain());
MutexLocker locker(m_databaseTaskMutex);
m_databaseTasks.append(WTF::move(task));
m_queue->dispatch(bind(&DatabaseProcess::performNextDatabaseTask, this));
}
void DatabaseProcess::performNextDatabaseTask()
{
ASSERT(!RunLoop::isMain());
std::unique_ptr<AsyncTask> task;
{
MutexLocker locker(m_databaseTaskMutex);
ASSERT(!m_databaseTasks.isEmpty());
task = m_databaseTasks.takeFirst();
}
task->performTask();
}
void DatabaseProcess::createDatabaseToWebProcessConnection()
{
#if OS(DARWIN)
// Create the listening port.
mach_port_t listeningPort;
mach_port_allocate(mach_task_self(), MACH_PORT_RIGHT_RECEIVE, &listeningPort);
// Create a listening connection.
RefPtr<DatabaseToWebProcessConnection> connection = DatabaseToWebProcessConnection::create(IPC::Connection::Identifier(listeningPort));
m_databaseToWebProcessConnections.append(connection.release());
IPC::Attachment clientPort(listeningPort, MACH_MSG_TYPE_MAKE_SEND);
parentProcessConnection()->send(Messages::DatabaseProcessProxy::DidCreateDatabaseToWebProcessConnection(clientPort), 0);
#else
notImplemented();
#endif
}
void DatabaseProcess::getIndexedDatabaseOrigins(uint64_t callbackID)
{
postDatabaseTask(createAsyncTask(*this, &DatabaseProcess::doGetIndexedDatabaseOrigins, callbackID));
}
void DatabaseProcess::doGetIndexedDatabaseOrigins(uint64_t callbackID)
{
Vector<SecurityOriginData> results;
if (m_indexedDatabaseDirectory.isEmpty()) {
send(Messages::WebOriginDataManagerProxy::DidGetOrigins(results, callbackID), 0);
return;
}
Vector<String> originPaths = listDirectory(m_indexedDatabaseDirectory, "*");
for (auto& originPath : originPaths) {
URL url;
url.setProtocol(ASCIILiteral("file"));
url.setPath(originPath);
String databaseIdentifier = url.lastPathComponent();
RefPtr<SecurityOrigin> securityOrigin = SecurityOrigin::maybeCreateFromDatabaseIdentifier(databaseIdentifier);
if (!securityOrigin)
continue;
results.append(SecurityOriginData::fromSecurityOrigin(securityOrigin.get()));
}
send(Messages::WebOriginDataManagerProxy::DidGetOrigins(results, callbackID), 0);
}
static void removeAllDatabasesForOriginPath(const String& originPath, double startDate, double endDate)
{
// FIXME: We should also close/invalidate any live handles to the database files we are about to delete.
// Right now:
// - For read-only operations, they will continue functioning as normal on the unlinked file.
// - For write operations, they will start producing errors as SQLite notices the missing backing store.
// This is tracked by https://bugs.webkit.org/show_bug.cgi?id=135347
Vector<String> databasePaths = listDirectory(originPath, "*");
for (auto& databasePath : databasePaths) {
String databaseFile = pathByAppendingComponent(databasePath, "IndexedDB.sqlite3");
if (!fileExists(databaseFile))
continue;
time_t modTime;
getFileModificationTime(databaseFile, modTime);
if (modTime < startDate || modTime > endDate)
continue;
deleteFile(databaseFile);
deleteEmptyDirectory(databasePath);
}
deleteEmptyDirectory(originPath);
}
void DatabaseProcess::deleteIndexedDatabaseEntriesForOrigin(const SecurityOriginData& origin, uint64_t callbackID)
{
postDatabaseTask(createAsyncTask(*this, &DatabaseProcess::doDeleteIndexedDatabaseEntriesForOrigin, origin, callbackID));
}
void DatabaseProcess::doDeleteIndexedDatabaseEntriesForOrigin(const SecurityOriginData& originData, uint64_t callbackID)
{
if (m_indexedDatabaseDirectory.isEmpty()) {
send(Messages::WebOriginDataManagerProxy::DidDeleteEntries(callbackID), 0);
return;
}
RefPtr<SecurityOrigin> origin = originData.securityOrigin();
String databaseIdentifier = origin->databaseIdentifier();
String originPath = pathByAppendingComponent(m_indexedDatabaseDirectory, databaseIdentifier);
removeAllDatabasesForOriginPath(originPath, std::numeric_limits<double>::lowest(), std::numeric_limits<double>::max());
send(Messages::WebOriginDataManagerProxy::DidDeleteEntries(callbackID), 0);
}
void DatabaseProcess::deleteIndexedDatabaseEntriesModifiedBetweenDates(double startDate, double endDate, uint64_t callbackID)
{
postDatabaseTask(createAsyncTask(*this, &DatabaseProcess::doDeleteIndexedDatabaseEntriesModifiedBetweenDates, startDate, endDate, callbackID));
}
void DatabaseProcess::doDeleteIndexedDatabaseEntriesModifiedBetweenDates(double startDate, double endDate, uint64_t callbackID)
{
if (m_indexedDatabaseDirectory.isEmpty()) {
send(Messages::WebOriginDataManagerProxy::DidDeleteEntries(callbackID), 0);
return;
}
Vector<String> originPaths = listDirectory(m_indexedDatabaseDirectory, "*");
for (auto& originPath : originPaths)
removeAllDatabasesForOriginPath(originPath, startDate, endDate);
send(Messages::WebOriginDataManagerProxy::DidDeleteEntries(callbackID), 0);
}
void DatabaseProcess::deleteAllIndexedDatabaseEntries(uint64_t callbackID)
{
postDatabaseTask(createAsyncTask(*this, &DatabaseProcess::doDeleteAllIndexedDatabaseEntries, callbackID));
}
void DatabaseProcess::doDeleteAllIndexedDatabaseEntries(uint64_t callbackID)
{
if (m_indexedDatabaseDirectory.isEmpty()) {
send(Messages::WebOriginDataManagerProxy::DidDeleteAllEntries(callbackID), 0);
return;
}
Vector<String> originPaths = listDirectory(m_indexedDatabaseDirectory, "*");
for (auto& originPath : originPaths)
removeAllDatabasesForOriginPath(originPath, std::numeric_limits<double>::lowest(), std::numeric_limits<double>::max());
send(Messages::WebOriginDataManagerProxy::DidDeleteAllEntries(callbackID), 0);
}
#if !PLATFORM(COCOA)
void DatabaseProcess::initializeProcess(const ChildProcessInitializationParameters&)
{
}
void DatabaseProcess::initializeProcessName(const ChildProcessInitializationParameters&)
{
}
void DatabaseProcess::initializeSandbox(const ChildProcessInitializationParameters&, SandboxInitializationParameters&)
{
}
#endif
} // namespace WebKit
#endif // ENABLE(DATABASE_PROCESS)
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