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/*
* Copyright (C) 2010 Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 THE COPYRIGHT
* OWNER 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.
*
*/
#ifndef PingLoader_h
#define PingLoader_h
#include "core/CoreExport.h"
#include "core/fetch/ResourceLoaderOptions.h"
#include "core/frame/LocalFrameLifecycleObserver.h"
#include "platform/Timer.h"
#include "platform/heap/Handle.h"
#include "public/platform/WebURLLoaderClient.h"
#include "wtf/Noncopyable.h"
#include "wtf/RefPtr.h"
namespace blink {
class EncodedFormData;
class LocalFrame;
class KURL;
class ResourceRequest;
// Issue an asynchronous, one-directional request at some resources, ignoring
// any response. The request is made independent of any LocalFrame staying alive,
// and must only stay alive until the transmission has completed successfully
// (or not -- errors are not propagated back either.) Upon transmission, the
// the load is cancelled and the loader cancels itself.
//
// The ping loader is used by audit pings, beacon transmissions and image loads
// during page unloading.
//
class CORE_EXPORT PingLoader : public RefCountedWillBeRefCountedGarbageCollected<PingLoader>, public LocalFrameLifecycleObserver, private WebURLLoaderClient {
WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(PingLoader);
WTF_MAKE_NONCOPYABLE(PingLoader);
USING_FAST_MALLOC_WILL_BE_REMOVED(PingLoader);
public:
~PingLoader() override;
enum ViolationReportType {
ContentSecurityPolicyViolationReport,
XSSAuditorViolationReport
};
static void loadImage(LocalFrame*, const KURL&);
static void sendLinkAuditPing(LocalFrame*, const KURL& pingURL, const KURL& destinationURL);
static void sendViolationReport(LocalFrame*, const KURL& reportURL, PassRefPtr<EncodedFormData> report, ViolationReportType);
DECLARE_VIRTUAL_TRACE();
protected:
PingLoader(LocalFrame*, ResourceRequest&, const FetchInitiatorInfo&, StoredCredentials);
static void start(LocalFrame*, ResourceRequest&, const FetchInitiatorInfo&, StoredCredentials = AllowStoredCredentials);
void dispose();
private:
void didReceiveResponse(WebURLLoader*, const WebURLResponse&) final;
void didReceiveData(WebURLLoader*, const char*, int, int) final;
void didFinishLoading(WebURLLoader*, double, int64_t) final;
void didFail(WebURLLoader*, const WebURLError&) final;
void timeout(Timer<PingLoader>*);
void didFailLoading(LocalFrame*);
OwnPtr<WebURLLoader> m_loader;
Timer<PingLoader> m_timeout;
String m_url;
unsigned long m_identifier;
};
} // namespace blink
#endif // PingLoader_h