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/*
* Copyright (C) 2021 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 "WebLockRegistryProxy.h"
#include "Connection.h"
#include "RemoteWebLockRegistryMessages.h"
#include "WebLockRegistryProxyMessages.h"
#include "WebProcessProxy.h"
#include "WebsiteDataStore.h"
#include <WebCore/WebLock.h>
#include <WebCore/WebLockIdentifier.h>
#include <WebCore/WebLockManagerSnapshot.h>
#include <WebCore/WebLockRegistry.h>
#include <wtf/TZoneMallocInlines.h>
namespace WebKit {
#define MESSAGE_CHECK(assertion) MESSAGE_CHECK_BASE(assertion, m_process->connection())
#define MESSAGE_CHECK_COMPLETION(assertion, completion) MESSAGE_CHECK_COMPLETION_BASE(assertion, m_process->connection(), completion)
WTF_MAKE_TZONE_ALLOCATED_IMPL(WebLockRegistryProxy);
WebLockRegistryProxy::WebLockRegistryProxy(WebProcessProxy& process)
: m_process(process)
{
protectedProcess()->addMessageReceiver(Messages::WebLockRegistryProxy::messageReceiverName(), *this);
}
WebLockRegistryProxy::~WebLockRegistryProxy()
{
protectedProcess()->removeMessageReceiver(Messages::WebLockRegistryProxy::messageReceiverName());
}
void WebLockRegistryProxy::requestLock(WebCore::ClientOrigin&& clientOrigin, WebCore::WebLockIdentifier lockIdentifier, WebCore::ScriptExecutionContextIdentifier clientID, String&& name, WebCore::WebLockMode lockMode, bool steal, bool ifAvailable)
{
Ref process = m_process.get();
MESSAGE_CHECK(lockIdentifier.processIdentifier() == process->coreProcessIdentifier());
MESSAGE_CHECK(clientID.processIdentifier() == process->coreProcessIdentifier());
MESSAGE_CHECK(name.length() <= WebCore::WebLock::maxNameLength);
m_hasEverRequestedLocks = true;
RefPtr dataStore = process->websiteDataStore();
if (!dataStore) {
process->send(Messages::RemoteWebLockRegistry::DidCompleteLockRequest(lockIdentifier, clientID, false), 0);
return;
}
dataStore->protectedWebLockRegistry()->requestLock(process->sessionID(), WTFMove(clientOrigin), lockIdentifier, clientID, WTFMove(name), lockMode, steal, ifAvailable, [weakThis = WeakPtr { *this }, lockIdentifier, clientID](bool success) {
if (weakThis)
weakThis->protectedProcess()->send(Messages::RemoteWebLockRegistry::DidCompleteLockRequest(lockIdentifier, clientID, success), 0);
}, [weakThis = WeakPtr { *this }, lockIdentifier, clientID] {
if (weakThis)
weakThis->protectedProcess()->send(Messages::RemoteWebLockRegistry::DidStealLock(lockIdentifier, clientID), 0);
});
}
void WebLockRegistryProxy::releaseLock(WebCore::ClientOrigin&& clientOrigin, WebCore::WebLockIdentifier lockIdentifier, WebCore::ScriptExecutionContextIdentifier clientID, String&& name)
{
MESSAGE_CHECK(lockIdentifier.processIdentifier() == m_process->coreProcessIdentifier());
MESSAGE_CHECK(clientID.processIdentifier() == m_process->coreProcessIdentifier());
Ref process = m_process.get();
if (RefPtr dataStore = process->websiteDataStore())
dataStore->protectedWebLockRegistry()->releaseLock(process->sessionID(), WTFMove(clientOrigin), lockIdentifier, clientID, WTFMove(name));
}
void WebLockRegistryProxy::abortLockRequest(WebCore::ClientOrigin&& clientOrigin, WebCore::WebLockIdentifier lockIdentifier, WebCore::ScriptExecutionContextIdentifier clientID, String&& name, CompletionHandler<void(bool)>&& completionHandler)
{
MESSAGE_CHECK_COMPLETION(lockIdentifier.processIdentifier() == m_process->coreProcessIdentifier(), completionHandler(false));
MESSAGE_CHECK_COMPLETION(clientID.processIdentifier() == m_process->coreProcessIdentifier(), completionHandler(false));
RefPtr dataStore = m_process->websiteDataStore();
if (!dataStore) {
completionHandler(false);
return;
}
dataStore->protectedWebLockRegistry()->abortLockRequest(protectedProcess()->sessionID(), WTFMove(clientOrigin), lockIdentifier, clientID, WTFMove(name), WTFMove(completionHandler));
}
void WebLockRegistryProxy::snapshot(WebCore::ClientOrigin&& clientOrigin, CompletionHandler<void(WebCore::WebLockManagerSnapshot&&)>&& completionHandler)
{
RefPtr dataStore = m_process->websiteDataStore();
if (!dataStore) {
completionHandler(WebCore::WebLockManagerSnapshot { });
return;
}
dataStore->protectedWebLockRegistry()->snapshot(protectedProcess()->sessionID(), WTFMove(clientOrigin), WTFMove(completionHandler));
}
void WebLockRegistryProxy::clientIsGoingAway(WebCore::ClientOrigin&& clientOrigin, WebCore::ScriptExecutionContextIdentifier clientID)
{
Ref process = m_process.get();
MESSAGE_CHECK(clientID.processIdentifier() == process->coreProcessIdentifier());
if (RefPtr dataStore = WebsiteDataStore::existingDataStoreForSessionID(process->sessionID()))
dataStore->protectedWebLockRegistry()->clientIsGoingAway(process->sessionID(), WTFMove(clientOrigin), clientID);
}
void WebLockRegistryProxy::processDidExit()
{
if (!m_hasEverRequestedLocks)
return;
Ref process = m_process.get();
if (RefPtr dataStore = WebsiteDataStore::existingDataStoreForSessionID(process->sessionID()))
dataStore->protectedWebLockRegistry()->clientsAreGoingAway(process->coreProcessIdentifier());
}
#undef MESSAGE_CHECK
#undef MESSAGE_CHECK_COMPLETION
} // namespace WebKit
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