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/*
* Copyright (C) 2006 Apple Computer, 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 COMPUTER, INC. ``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 COMPUTER, INC. OR
* 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 "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 "ResourceBuffer.h"
#include "ResourceRequest.h"
#include <wtf/text/CString.h>
namespace WebCore {
IconLoader::IconLoader(Frame* frame)
: m_frame(frame)
{
}
PassOwnPtr<IconLoader> IconLoader::create(Frame* frame)
{
return adoptPtr(new IconLoader(frame));
}
IconLoader::~IconLoader()
{
}
void IconLoader::startLoading()
{
if (m_resource || !m_frame->document())
return;
CachedResourceRequest request(ResourceRequest(m_frame->loader()->icon()->url()), ResourceLoaderOptions(SendCallbacks, SniffContent, BufferData, DoNotAllowStoredCredentials, DoNotAskClientForAnyCredentials, DoSecurityCheck, UseDefaultOriginRestrictionsForType));
#if PLATFORM(BLACKBERRY)
request.mutableResourceRequest().setTargetType(ResourceRequest::TargetIsFavicon);
#endif
request.mutableResourceRequest().setPriority(ResourceLoadPriorityLow);
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 = 0;
}
}
void IconLoader::notifyFinished(CachedResource* resource)
{
ASSERT(resource == m_resource);
// If we got a status code indicating an invalid response, then lets
// ignore the data and not try to decode the error page as an icon.
RefPtr<ResourceBuffer> data = resource->resourceBuffer();
int status = resource->response().httpStatusCode();
if (status && (status < 200 || status > 299))
data = 0;
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 = 0;
}
LOG(IconDatabase, "IconLoader::finishLoading() - Committing iconURL %s to database", resource->url().string().ascii().data());
m_frame->loader()->icon()->commitToDatabase(resource->url());
// Setting the icon data only after committing to the database ensures that the data is
// kept in memory (so it does not have to be read from the database asynchronously), since
// there is a page URL referencing it.
iconDatabase().setIconDataForIconURL(data ? data->sharedBuffer() : 0, resource->url().string());
m_frame->loader()->client()->dispatchDidReceiveIcon();
stopLoading();
}
}
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