#include "config.h"
#include "IconLoader.h"
#include "CachedRawResource.h"
#include "CachedResourceLoader.h"
#include "CachedResourceRequest.h"
#include "CachedResourceRequestInitiators.h"
#include "Document.h"
#include "Frame.h"
#include "FrameLoader.h"
#include "FrameLoaderClient.h"
#include "IconController.h"
#include "IconDatabase.h"
#include "Logging.h"
#include "ResourceRequest.h"
#include "SharedBuffer.h"
#include <wtf/text/CString.h>
namespace WebCore {
IconLoader::IconLoader(Frame& frame)
: m_frame(frame)
{
}
IconLoader::~IconLoader()
{
stopLoading();
}
void IconLoader::startLoading()
{
if (m_resource || !m_frame.document())
return;
CachedResourceRequest request(ResourceRequest(m_frame.loader().icon().url()), ResourceLoaderOptions(SendCallbacks, SniffContent, BufferData, DoNotAllowStoredCredentials, DoNotAskClientForAnyCredentials, FetchOptions::Credentials::Omit, DoSecurityCheck, FetchOptions::Mode::NoCors, DoNotIncludeCertificateInfo, ContentSecurityPolicyImposition::DoPolicyCheck, DefersLoadingPolicy::AllowDefersLoading, CachingPolicy::AllowCaching));
request.mutableResourceRequest().setPriority(ResourceLoadPriority::Low);
request.setInitiator(cachedResourceRequestInitiators().icon);
m_resource = m_frame.document()->cachedResourceLoader().requestRawResource(request);
if (m_resource)
m_resource->addClient(this);
else
LOG_ERROR("Failed to start load for icon at url %s", m_frame.loader().icon().url().string().ascii().data());
}
void IconLoader::stopLoading()
{
if (m_resource) {
m_resource->removeClient(this);
m_resource = nullptr;
}
}
void IconLoader::notifyFinished(CachedResource* resource)
{
ASSERT(resource == m_resource);
auto* data = resource->resourceBuffer();
int status = 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", resource->url().string().ascii().data());
data = nullptr;
}
LOG(IconDatabase, "IconLoader::finishLoading() - Committing iconURL %s to database", resource->url().string().ascii().data());
m_frame.loader().icon().commitToDatabase(resource->url());
iconDatabase().setIconDataForIconURL(data, resource->url().string());
m_frame.loader().client().dispatchDidReceiveIcon();
stopLoading();
}
}