1 /* 2 * Copyright (C) 2010 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 * 30 */ 31 32 #ifndef PingLoader_h 33 #define PingLoader_h 34 35 #include "core/fetch/ResourceLoaderOptions.h" 36 #include "core/page/PageLifecycleObserver.h" 37 #include "platform/Timer.h" 38 #include "public/platform/WebURLLoaderClient.h" 39 #include "wtf/Noncopyable.h" 40 #include "wtf/RefPtr.h" 41 42 namespace blink { 43 44 class FormData; 45 class LocalFrame; 46 class KURL; 47 class ResourceRequest; 48 49 // Issue an asynchronous, one-directional request at some resources, ignoring 50 // any response. The request is made independent of any LocalFrame staying alive, 51 // and must only stay alive until the transmission has completed successfully 52 // (or not -- errors are not propagated back either.) Upon transmission, the 53 // the load is cancelled and the loader cancels itself. 54 // 55 // The ping loader is used by audit pings, beacon transmissions and image loads 56 // during page unloading. 57 // 58 class PingLoader : public PageLifecycleObserver, private blink::WebURLLoaderClient { 59 WTF_MAKE_NONCOPYABLE(PingLoader); 60 WTF_MAKE_FAST_ALLOCATED; 61 public: 62 virtual ~PingLoader(); 63 64 enum ViolationReportType { 65 ContentSecurityPolicyViolationReport, 66 XSSAuditorViolationReport 67 }; 68 69 static void loadImage(LocalFrame*, const KURL& url); 70 static void sendLinkAuditPing(LocalFrame*, const KURL& pingURL, const KURL& destinationURL); 71 static void sendViolationReport(LocalFrame*, const KURL& reportURL, PassRefPtr<FormData> report, ViolationReportType); 72 73 protected: 74 PingLoader(LocalFrame*, ResourceRequest&, const FetchInitiatorInfo&, StoredCredentials); 75 76 static void start(LocalFrame*, ResourceRequest&, const FetchInitiatorInfo&, StoredCredentials = AllowStoredCredentials); 77 78 private: 79 virtual void didReceiveResponse(blink::WebURLLoader*, const blink::WebURLResponse&) OVERRIDE; 80 virtual void didReceiveData(blink::WebURLLoader*, const char*, int, int) OVERRIDE; 81 virtual void didFinishLoading(blink::WebURLLoader*, double, int64_t) OVERRIDE; 82 virtual void didFail(blink::WebURLLoader*, const blink::WebURLError&) OVERRIDE; 83 84 void timeout(Timer<PingLoader>*); 85 86 OwnPtr<blink::WebURLLoader> m_loader; 87 Timer<PingLoader> m_timeout; 88 String m_url; 89 unsigned long m_identifier; 90 }; 91 92 } 93 94 #endif // PingLoader_h 95
