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/*
* Copyright (C) 2016 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 "PendingDownload.h"
#include "Download.h"
#include "DownloadProxyMessages.h"
#include "MessageSenderInlines.h"
#include "NetworkConnectionToWebProcess.h"
#include "NetworkLoad.h"
#include "NetworkProcess.h"
#include "NetworkSession.h"
#include <WebCore/LocalFrameLoaderClient.h>
#include <wtf/TZoneMallocInlines.h>
namespace WebKit {
using namespace WebCore;
WTF_MAKE_TZONE_ALLOCATED_IMPL(PendingDownload);
PendingDownload::PendingDownload(IPC::Connection* parentProcessConnection, NetworkLoadParameters&& parameters, DownloadID downloadID, NetworkSession& networkSession, const String& suggestedName, FromDownloadAttribute fromDownloadAttribute, std::optional<WebCore::ProcessIdentifier> webProcessID)
: m_networkLoad(NetworkLoad::create(*this, WTFMove(parameters), networkSession))
, m_parentProcessConnection(parentProcessConnection)
, m_fromDownloadAttribute(fromDownloadAttribute)
, m_webProcessID(webProcessID)
{
m_networkLoad->start();
m_isAllowedToAskUserForCredentials = parameters.clientCredentialPolicy == ClientCredentialPolicy::MayAskClientForCredentials;
m_networkLoad->setPendingDownloadID(downloadID);
m_networkLoad->setPendingDownload(*this);
m_networkLoad->setSuggestedFilename(suggestedName);
send(Messages::DownloadProxy::DidStart(m_networkLoad->currentRequest(), suggestedName));
}
PendingDownload::PendingDownload(IPC::Connection* parentProcessConnection, Ref<NetworkLoad>&& networkLoad, ResponseCompletionHandler&& completionHandler, DownloadID downloadID, const ResourceRequest& request, const ResourceResponse& response)
: m_networkLoad(WTFMove(networkLoad))
, m_parentProcessConnection(parentProcessConnection)
{
m_isAllowedToAskUserForCredentials = m_networkLoad->isAllowedToAskUserForCredentials();
m_networkLoad->setPendingDownloadID(downloadID);
send(Messages::DownloadProxy::DidStart(request, String()));
m_networkLoad->convertTaskToDownload(*this, request, response, WTFMove(completionHandler));
}
PendingDownload::~PendingDownload() = default;
bool PendingDownload::isDownloadTriggeredWithDownloadAttribute() const
{
return m_fromDownloadAttribute == FromDownloadAttribute::Yes;
}
inline static bool isRedirectCrossOrigin(const WebCore::ResourceRequest& redirectRequest, const WebCore::ResourceResponse& redirectResponse)
{
return !SecurityOrigin::create(redirectResponse.url())->isSameOriginAs(SecurityOrigin::create(redirectRequest.url()));
}
void PendingDownload::willSendRedirectedRequest(WebCore::ResourceRequest&&, WebCore::ResourceRequest&& redirectRequest, WebCore::ResourceResponse&& redirectResponse, CompletionHandler<void(WebCore::ResourceRequest&&)>&& completionHandler)
{
#if PLATFORM(COCOA)
bool linkedOnOrAfterBlockCrossOriginDownloads = WTF::linkedOnOrAfterSDKWithBehavior(SDKAlignedBehavior::BlockCrossOriginRedirectDownloads);
#else
bool linkedOnOrAfterBlockCrossOriginDownloads = true;
#endif
if (linkedOnOrAfterBlockCrossOriginDownloads && isDownloadTriggeredWithDownloadAttribute() && isRedirectCrossOrigin(redirectRequest, redirectResponse)) {
completionHandler(WebCore::ResourceRequest());
m_networkLoad->cancel();
if (m_webProcessID && !redirectRequest.url().protocolIsJavaScript() && m_networkLoad->webFrameID() && m_networkLoad->webPageID())
m_networkLoad->networkProcess()->webProcessConnection(*m_webProcessID)->loadCancelledDownloadRedirectRequestInFrame(redirectRequest, *m_networkLoad->webFrameID(), *m_networkLoad->webPageID());
return;
}
sendWithAsyncReply(Messages::DownloadProxy::WillSendRequest(WTFMove(redirectRequest), WTFMove(redirectResponse)), WTFMove(completionHandler));
};
void PendingDownload::cancel(CompletionHandler<void(std::span<const uint8_t>)>&& completionHandler)
{
m_networkLoad->cancel();
completionHandler({ });
}
#if PLATFORM(COCOA)
#if HAVE(MODERN_DOWNLOADPROGRESS)
void PendingDownload::publishProgress(const URL& url, std::span<const uint8_t> bookmarkData, UseDownloadPlaceholder useDownloadPlaceholder, std::span<const uint8_t> activityAccessToken)
{
ASSERT(!m_progressURL.isValid());
m_progressURL = url;
m_bookmarkData = bookmarkData;
m_useDownloadPlaceholder = useDownloadPlaceholder;
m_activityAccessToken = activityAccessToken;
}
#else
void PendingDownload::publishProgress(const URL& url, SandboxExtension::Handle&& sandboxExtension)
{
ASSERT(!m_progressURL.isValid());
m_progressURL = url;
m_progressSandboxExtension = WTFMove(sandboxExtension);
}
#endif
void PendingDownload::didBecomeDownload(Download& download)
{
if (!m_progressURL.isValid())
return;
#if HAVE(MODERN_DOWNLOADPROGRESS)
download.publishProgress(m_progressURL, m_bookmarkData, m_useDownloadPlaceholder, m_activityAccessToken);
#else
download.publishProgress(m_progressURL, WTFMove(m_progressSandboxExtension));
#endif
}
#endif // PLATFORM(COCOA)
void PendingDownload::didFailLoading(const WebCore::ResourceError& error)
{
// FIXME: For Cross Origin redirects Cancellation happens early. So avoid repeating. Maybe there is a better way ?
if (!m_isDownloadCancelled) {
m_isDownloadCancelled = true;
send(Messages::DownloadProxy::DidFail(error, { }));
}
}
IPC::Connection* PendingDownload::messageSenderConnection() const
{
return m_parentProcessConnection.get();
}
void PendingDownload::didReceiveResponse(WebCore::ResourceResponse&& response, PrivateRelayed, ResponseCompletionHandler&& completionHandler)
{
completionHandler(WebCore::PolicyAction::Download);
}
uint64_t PendingDownload::messageSenderDestinationID() const
{
return m_networkLoad->pendingDownloadID()->toUInt64();
}
}
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