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/*
* Copyright (C) 2017-2025 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 "ApplicationManifestLoader.h"
#if ENABLE(APPLICATION_MANIFEST)
#include "CachedApplicationManifest.h"
#include "CachedResourceRequest.h"
#include "CachedResourceRequestInitiatorTypes.h"
#include "DocumentLoader.h"
#include "DocumentResourceLoader.h"
#include "FrameDestructionObserverInlines.h"
#include "LocalFrameInlines.h"
namespace WebCore {
ApplicationManifestLoader::ApplicationManifestLoader(DocumentLoader& documentLoader, const URL& url, bool useCredentials)
: m_documentLoader(documentLoader)
, m_url(url)
, m_useCredentials(useCredentials)
{
}
ApplicationManifestLoader::~ApplicationManifestLoader()
{
stopLoading();
}
bool ApplicationManifestLoader::startLoading()
{
ASSERT(!m_resource);
RefPtr frame = m_documentLoader->frame();
if (!frame)
return false;
ResourceRequest resourceRequest { URL { m_url } };
resourceRequest.setPriority(ResourceLoadPriority::Low);
#if !ERROR_DISABLED
// Copy this because we may want to access it after transferring the
// `resourceRequest` to the `request`. If we don't, then the LOG_ERROR
// below won't print a URL.
auto resourceRequestURL = resourceRequest.url();
#endif
auto credentials = m_useCredentials ? FetchOptions::Credentials::Include : FetchOptions::Credentials::Omit;
// The "linked resource fetch setup steps" are defined as part of:
// https://html.spec.whatwg.org/#link-type-manifest
auto options = ResourceLoaderOptions(
SendCallbackPolicy::SendCallbacks,
ContentSniffingPolicy::SniffContent,
DataBufferingPolicy::BufferData,
StoredCredentialsPolicy::DoNotUse,
ClientCredentialPolicy::CannotAskClientForCredentials,
credentials,
SecurityCheckPolicy::DoSecurityCheck,
FetchOptions::Mode::Cors,
CertificateInfoPolicy::DoNotIncludeCertificateInfo,
ContentSecurityPolicyImposition::DoPolicyCheck,
DefersLoadingPolicy::AllowDefersLoading,
CachingPolicy::AllowCaching);
options.destination = FetchOptions::Destination::Manifest;
options.sameOriginDataURLFlag = SameOriginDataURLFlag::Set;
CachedResourceRequest request(WTFMove(resourceRequest), options);
auto cachedResource = frame->document()->protectedCachedResourceLoader()->requestApplicationManifest(WTFMove(request));
m_resource = cachedResource.value_or(nullptr);
if (CachedResourceHandle resource = m_resource)
resource->addClient(*this);
else {
LOG_ERROR("Failed to start load for application manifest at url %s (error: %s)", resourceRequestURL.string().ascii().data(), cachedResource.error().localizedDescription().utf8().data());
return false;
}
return true;
}
void ApplicationManifestLoader::stopLoading()
{
if (CachedResourceHandle resource = std::exchange(m_resource, nullptr))
resource->removeClient(*this);
}
std::optional<ApplicationManifest>& ApplicationManifestLoader::processManifest()
{
if (!m_processedManifest) {
if (CachedResourceHandle resource = m_resource) {
auto manifestURL = m_url;
auto documentURL = m_documentLoader->url();
auto frame = m_documentLoader->frame();
RefPtr document = frame ? frame->document() : nullptr;
m_processedManifest = resource->process(manifestURL, documentURL, document.get());
}
}
return m_processedManifest;
}
void ApplicationManifestLoader::notifyFinished(CachedResource& resource, const NetworkLoadMetrics&, LoadWillContinueInAnotherProcess)
{
ASSERT_UNUSED(resource, &resource == m_resource);
Ref { m_documentLoader.get() }->finishedLoadingApplicationManifest(*this);
}
} // namespace WebCore
#endif // ENABLE(APPLICATION_MANIFEST)
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