#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 "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)
, m_url(frame.loader().icon().url())
{
}
IconLoader::IconLoader(DocumentLoader& documentLoader, const URL& url)
: m_documentLoader(&documentLoader)
, m_url(url)
{
}
IconLoader::~IconLoader()
{
stopLoading();
}
void IconLoader::startLoading()
{
ASSERT(m_frame || m_documentLoader);
if (m_resource)
return;
if (m_frame && !m_frame->document())
return;
if (m_documentLoader && !m_documentLoader->frame())
return;
ResourceRequest resourceRequest = m_documentLoader ? m_url : m_frame->loader().icon().url();
resourceRequest.setPriority(ResourceLoadPriority::Low);
#if !ERROR_DISABLED
auto resourceRequestURL = resourceRequest.url();
#endif
CachedResourceRequest request(WTFMove(resourceRequest), ResourceLoaderOptions(SendCallbacks, SniffContent, BufferData, DoNotAllowStoredCredentials, ClientCredentialPolicy::CannotAskClientForCredentials, FetchOptions::Credentials::Omit, DoSecurityCheck, FetchOptions::Mode::NoCors, DoNotIncludeCertificateInfo, ContentSecurityPolicyImposition::DoPolicyCheck, DefersLoadingPolicy::AllowDefersLoading, CachingPolicy::AllowCaching));
request.setInitiator(cachedResourceRequestInitiators().icon);
auto* frame = m_frame ? m_frame : m_documentLoader->frame();
m_resource = frame->document()->cachedResourceLoader().requestIcon(WTFMove(request));
if (m_resource)
m_resource->addClient(*this);
else
LOG_ERROR("Failed to start load for icon at url %s", resourceRequestURL.string().ascii().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());
if (!m_frame) {
m_documentLoader->finishedLoadingIcon(*this, data);
return;
}
m_frame->loader().icon().commitToDatabase(m_resource->url());
iconDatabase().setIconDataForIconURL(data, m_resource->url().string());
m_frame->loader().client().dispatchDidReceiveIcon();
stopLoading();
}
}