#include "config.h"
#include "IconLoader.h"
#include "CachedRawResource.h"
#include "CachedResourceLoader.h"
#include "CachedResourceRequest.h"
#include "CachedResourceRequestInitiators.h"
#include "Document.h"
#include "DocumentLoader.h"
#include "Frame.h"
#include "FrameLoader.h"
#include "FrameLoaderClient.h"
#include "Logging.h"
#include "ResourceRequest.h"
#include "SharedBuffer.h"
#include <wtf/text/CString.h>
namespace WebCore {
IconLoader::IconLoader(DocumentLoader& documentLoader, const URL& url)
: m_documentLoader(documentLoader)
, m_url(url)
{
}
IconLoader::~IconLoader()
{
stopLoading();
}
void IconLoader::startLoading()
{
if (m_resource)
return;
auto* frame = m_documentLoader.frame();
if (!frame)
return;
ResourceRequest resourceRequest = m_url;
resourceRequest.setPriority(ResourceLoadPriority::Low);
#if !ERROR_DISABLED
auto resourceRequestURL = resourceRequest.url();
#endif
CachedResourceRequest request(WTFMove(resourceRequest), ResourceLoaderOptions(
SendCallbackPolicy::SendCallbacks,
ContentSniffingPolicy::SniffContent,
DataBufferingPolicy::BufferData,
StoredCredentialsPolicy::DoNotUse,
ClientCredentialPolicy::CannotAskClientForCredentials,
FetchOptions::Credentials::Omit,
SecurityCheckPolicy::DoSecurityCheck,
FetchOptions::Mode::NoCors,
CertificateInfoPolicy::DoNotIncludeCertificateInfo,
ContentSecurityPolicyImposition::DoPolicyCheck,
DefersLoadingPolicy::AllowDefersLoading,
CachingPolicy::AllowCaching));
request.setInitiator(cachedResourceRequestInitiators().icon);
auto cachedResource = frame->document()->cachedResourceLoader().requestIcon(WTFMove(request));
m_resource = cachedResource.value_or(nullptr);
if (m_resource)
m_resource->addClient(*this);
else
LOG_ERROR("Failed to start load for icon at url %s (error: %s)", resourceRequestURL.string().ascii().data(), cachedResource.error().localizedDescription().utf8().data());
}
void IconLoader::stopLoading()
{
if (m_resource) {
m_resource->removeClient(*this);
m_resource = nullptr;
}
}
void IconLoader::notifyFinished(CachedResource& resource)
{
ASSERT_UNUSED(resource, &resource == m_resource);
auto* data = m_resource->resourceBuffer();
int status = m_resource->response().httpStatusCode();
if (status && (status < 200 || status > 299))
data = nullptr;
static const char pdfMagicNumber[] = "%PDF";
static unsigned pdfMagicNumberLength = sizeof(pdfMagicNumber) - 1;
if (data && data->size() >= pdfMagicNumberLength && !memcmp(data->data(), pdfMagicNumber, pdfMagicNumberLength)) {
LOG(IconDatabase, "IconLoader::finishLoading() - Ignoring icon at %s because it appears to be a PDF", m_resource->url().string().ascii().data());
data = nullptr;
}
LOG(IconDatabase, "IconLoader::finishLoading() - Committing iconURL %s to database", m_resource->url().string().ascii().data());
m_documentLoader.finishedLoadingIcon(*this, data);
}
}