131 lines
4.8 KiB
C++
131 lines
4.8 KiB
C++
/*
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* Copyright (C) 2006-2017 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "IconLoader.h"
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#include "CachedRawResource.h"
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#include "CachedResourceLoader.h"
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#include "CachedResourceRequest.h"
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#include "CachedResourceRequestInitiators.h"
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#include "Document.h"
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#include "DocumentLoader.h"
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#include "Frame.h"
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#include "FrameLoader.h"
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#include "FrameLoaderClient.h"
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#include "Logging.h"
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#include "ResourceRequest.h"
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#include "SharedBuffer.h"
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#include <wtf/text/CString.h>
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namespace WebCore {
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IconLoader::IconLoader(DocumentLoader& documentLoader, const URL& url)
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: m_documentLoader(documentLoader)
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, m_url(url)
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{
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}
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IconLoader::~IconLoader()
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{
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stopLoading();
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}
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void IconLoader::startLoading()
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{
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if (m_resource)
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return;
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auto* frame = m_documentLoader.frame();
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if (!frame)
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return;
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ResourceRequest resourceRequest = m_url;
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resourceRequest.setPriority(ResourceLoadPriority::Low);
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#if !ERROR_DISABLED
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// Copy this because we may want to access it after transferring the
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// `resourceRequest` to the `request`. If we don't, then the LOG_ERROR
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// below won't print a URL.
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auto resourceRequestURL = resourceRequest.url();
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#endif
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CachedResourceRequest request(WTFMove(resourceRequest), ResourceLoaderOptions(
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SendCallbackPolicy::SendCallbacks,
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ContentSniffingPolicy::SniffContent,
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DataBufferingPolicy::BufferData,
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StoredCredentialsPolicy::DoNotUse,
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ClientCredentialPolicy::CannotAskClientForCredentials,
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FetchOptions::Credentials::Omit,
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SecurityCheckPolicy::DoSecurityCheck,
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FetchOptions::Mode::NoCors,
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CertificateInfoPolicy::DoNotIncludeCertificateInfo,
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ContentSecurityPolicyImposition::DoPolicyCheck,
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DefersLoadingPolicy::AllowDefersLoading,
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CachingPolicy::AllowCaching));
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request.setInitiator(cachedResourceRequestInitiators().icon);
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auto cachedResource = frame->document()->cachedResourceLoader().requestIcon(WTFMove(request));
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m_resource = cachedResource.value_or(nullptr);
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if (m_resource)
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m_resource->addClient(*this);
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else
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LOG_ERROR("Failed to start load for icon at url %s (error: %s)", resourceRequestURL.string().ascii().data(), cachedResource.error().localizedDescription().utf8().data());
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}
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void IconLoader::stopLoading()
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{
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if (m_resource) {
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m_resource->removeClient(*this);
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m_resource = nullptr;
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}
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}
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void IconLoader::notifyFinished(CachedResource& resource, const NetworkLoadMetrics&)
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{
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ASSERT_UNUSED(resource, &resource == m_resource);
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// If we got a status code indicating an invalid response, then lets
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// ignore the data and not try to decode the error page as an icon.
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auto* data = m_resource->resourceBuffer();
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int status = m_resource->response().httpStatusCode();
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if (status && (status < 200 || status > 299))
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data = nullptr;
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constexpr uint8_t pdfMagicNumber[] = { '%', 'P', 'D', 'F' };
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if (data && data->startsWith(Span { pdfMagicNumber, std::size(pdfMagicNumber) })) {
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LOG(IconDatabase, "IconLoader::finishLoading() - Ignoring icon at %s because it appears to be a PDF", m_resource->url().string().ascii().data());
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data = nullptr;
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}
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LOG(IconDatabase, "IconLoader::finishLoading() - Committing iconURL %s to database", m_resource->url().string().ascii().data());
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// DocumentLoader::finishedLoadingIcon destroys this IconLoader as it finishes. This will automatically
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// trigger IconLoader::stopLoading() during destruction, so we should just return here.
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m_documentLoader.finishedLoadingIcon(*this, data);
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}
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}
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