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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"
49 class ResourceRequest;
50 class ResourceResponse;
52 // This class triggers asynchronous loads independent of LocalFrame staying alive (i.e., auditing pingbacks).
53 // Since nothing depends on resources loaded through this class, we just want
54 // to allow the load to live long enough to ensure the message was actually sent.
55 // Therefore, as soon as a callback is received from the ResourceHandle, this class
56 // will cancel the load and delete itself.
57 class PingLoader FINAL : public PageLifecycleObserver, private blink::WebURLLoaderClient {
58 WTF_MAKE_NONCOPYABLE(PingLoader); WTF_MAKE_FAST_ALLOCATED;
60 enum ViolationReportType {
61 ContentSecurityPolicyViolationReport,
62 XSSAuditorViolationReport
65 static void loadImage(LocalFrame*, const KURL& url);
66 static void sendPing(LocalFrame*, const KURL& pingURL, const KURL& destinationURL);
67 static void sendViolationReport(LocalFrame*, const KURL& reportURL, PassRefPtr<FormData> report, ViolationReportType);
69 virtual ~PingLoader();
72 PingLoader(LocalFrame*, ResourceRequest&, const FetchInitiatorInfo&, StoredCredentials);
74 static void start(LocalFrame*, ResourceRequest&, const FetchInitiatorInfo&, StoredCredentials = AllowStoredCredentials);
76 virtual void didReceiveResponse(blink::WebURLLoader*, const blink::WebURLResponse&) OVERRIDE;
77 virtual void didReceiveData(blink::WebURLLoader*, const char*, int, int) OVERRIDE;
78 virtual void didFinishLoading(blink::WebURLLoader*, double, int64_t) OVERRIDE;
79 virtual void didFail(blink::WebURLLoader*, const blink::WebURLError&) OVERRIDE;
81 void timeout(Timer<PingLoader>*);
83 OwnPtr<blink::WebURLLoader> m_loader;
84 Timer<PingLoader> m_timeout;
86 unsigned long m_identifier;