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/*
* Copyright (C) 2022 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 "WebPermissionControllerProxy.h"
#include "WebPageProxy.h"
#include "WebPermissionControllerProxyMessages.h"
#include "WebProcessProxy.h"
#include <WebCore/ClientOrigin.h>
#include <WebCore/PermissionDescriptor.h>
#include <WebCore/PermissionQuerySource.h>
#include <WebCore/PermissionState.h>
#include <WebCore/SecurityOriginData.h>
#include <optional>
#include <wtf/GetPtr.h>
#include <wtf/TZoneMallocInlines.h>
#include <wtf/Vector.h>
#include <wtf/WeakHashSet.h>
namespace WebKit {
WTF_MAKE_TZONE_ALLOCATED_IMPL(WebPermissionControllerProxy);
WebPermissionControllerProxy::WebPermissionControllerProxy(WebProcessProxy& process)
: m_process(process)
{
protectedProcess()->addMessageReceiver(Messages::WebPermissionControllerProxy::messageReceiverName(), *this);
}
WebPermissionControllerProxy::~WebPermissionControllerProxy()
{
protectedProcess()->removeMessageReceiver(Messages::WebPermissionControllerProxy::messageReceiverName());
}
void WebPermissionControllerProxy::ref() const
{
m_process->ref();
}
void WebPermissionControllerProxy::deref() const
{
m_process->deref();
}
Ref<WebProcessProxy> WebPermissionControllerProxy::protectedProcess() const
{
return m_process.get();
}
void WebPermissionControllerProxy::query(const WebCore::ClientOrigin& clientOrigin, const WebCore::PermissionDescriptor& descriptor, std::optional<WebPageProxyIdentifier> identifier, WebCore::PermissionQuerySource source, CompletionHandler<void(std::optional<WebCore::PermissionState>)>&& completionHandler)
{
auto webPageProxy = identifier ? protectedProcess()->webPage(identifier.value()) : mostReasonableWebPageProxy(clientOrigin.topOrigin, source);
if (!webPageProxy) {
completionHandler(WebCore::PermissionState::Prompt);
return;
}
webPageProxy->queryPermission(clientOrigin, descriptor, WTFMove(completionHandler));
}
RefPtr<WebPageProxy> WebPermissionControllerProxy::mostReasonableWebPageProxy(const WebCore::SecurityOriginData& topOrigin, WebCore::PermissionQuerySource source) const
{
ASSERT(source == WebCore::PermissionQuerySource::SharedWorker || source == WebCore::PermissionQuerySource::ServiceWorker);
RefPtr<WebPageProxy> webPageProxy;
auto findWebPageProxy = [&topOrigin, &webPageProxy] (auto* processes) {
if (!processes)
return;
for (auto& process : *processes) {
for (Ref potentialWebPageProxy : getPtr(process)->pages()) {
if (WebCore::SecurityOriginData::fromURLWithoutStrictOpaqueness(URL { potentialWebPageProxy->currentURL() }) != topOrigin)
continue;
// The most reasonable webPageProxy is the newest one (the one with the greatest identifier).
if (webPageProxy && webPageProxy->identifier() > potentialWebPageProxy->identifier())
continue;
webPageProxy = WTFMove(potentialWebPageProxy);
}
}
};
Vector<Ref<WebProcessProxy>> currentProcess { protectedProcess() };
findWebPageProxy(¤tProcess);
switch (source) {
case WebCore::PermissionQuerySource::ServiceWorker:
findWebPageProxy(protectedProcess()->serviceWorkerClientProcesses());
break;
case WebCore::PermissionQuerySource::SharedWorker:
findWebPageProxy(protectedProcess()->sharedWorkerClientProcesses());
break;
default:
RELEASE_ASSERT_NOT_REACHED();
}
return webPageProxy;
}
} // namespace WebKit
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