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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 #include "config.h"
33 #include "core/loader/PingLoader.h"
34 
35 #include "core/FetchInitiatorTypeNames.h"
36 #include "core/dom/Document.h"
37 #include "core/fetch/FetchContext.h"
38 #include "core/frame/LocalFrame.h"
39 #include "core/inspector/InspectorInstrumentation.h"
40 #include "core/inspector/InspectorTraceEvents.h"
41 #include "core/loader/FrameLoader.h"
42 #include "core/loader/FrameLoaderClient.h"
43 #include "core/loader/UniqueIdentifier.h"
44 #include "core/page/Page.h"
45 #include "platform/exported/WrappedResourceRequest.h"
46 #include "platform/network/ResourceError.h"
47 #include "platform/network/ResourceRequest.h"
48 #include "platform/network/ResourceResponse.h"
49 #include "platform/weborigin/SecurityOrigin.h"
50 #include "platform/weborigin/SecurityPolicy.h"
51 #include "public/platform/Platform.h"
52 #include "public/platform/WebURLLoader.h"
53 #include "public/platform/WebURLRequest.h"
54 #include "public/platform/WebURLResponse.h"
55 #include "wtf/OwnPtr.h"
56 
57 namespace blink {
58 
loadImage(LocalFrame * frame,const KURL & url)59 void PingLoader::loadImage(LocalFrame* frame, const KURL& url)
60 {
61     if (!frame->document()->securityOrigin()->canDisplay(url)) {
62         FrameLoader::reportLocalLoadFailed(frame, url.string());
63         return;
64     }
65 
66     ResourceRequest request(url);
67     request.setRequestContext(blink::WebURLRequest::RequestContextPing);
68     request.setHTTPHeaderField("Cache-Control", "max-age=0");
69     frame->loader().fetchContext().addAdditionalRequestHeaders(frame->document(), request, FetchSubresource);
70     frame->loader().fetchContext().setFirstPartyForCookies(request);
71 
72     FetchInitiatorInfo initiatorInfo;
73     initiatorInfo.name = FetchInitiatorTypeNames::ping;
74     PingLoader::start(frame, request, initiatorInfo);
75 }
76 
77 // http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#hyperlink-auditing
sendLinkAuditPing(LocalFrame * frame,const KURL & pingURL,const KURL & destinationURL)78 void PingLoader::sendLinkAuditPing(LocalFrame* frame, const KURL& pingURL, const KURL& destinationURL)
79 {
80     ResourceRequest request(pingURL);
81     request.setRequestContext(blink::WebURLRequest::RequestContextPing);
82     request.setHTTPMethod("POST");
83     request.setHTTPContentType("text/ping");
84     request.setHTTPBody(FormData::create("PING"));
85     request.setHTTPHeaderField("Cache-Control", "max-age=0");
86     frame->loader().fetchContext().addAdditionalRequestHeaders(frame->document(), request, FetchSubresource);
87     frame->loader().fetchContext().setFirstPartyForCookies(request);
88 
89     RefPtr<SecurityOrigin> pingOrigin = SecurityOrigin::create(pingURL);
90     // addAdditionalRequestHeaders() will have added a referrer for same origin requests,
91     // but the spec omits the referrer for same origin.
92     if (frame->document()->securityOrigin()->isSameSchemeHostPort(pingOrigin.get()))
93         request.clearHTTPReferrer();
94 
95     request.setHTTPHeaderField("Ping-To", AtomicString(destinationURL.string()));
96 
97     // Ping-From follows the same rules as the default referrer beahavior for subresource requests.
98     // FIXME: Should Ping-From obey ReferrerPolicy?
99     if (!SecurityPolicy::shouldHideReferrer(pingURL, frame->document()->url().string()))
100         request.setHTTPHeaderField("Ping-From", AtomicString(frame->document()->url().string()));
101 
102     FetchInitiatorInfo initiatorInfo;
103     initiatorInfo.name = FetchInitiatorTypeNames::ping;
104     PingLoader::start(frame, request, initiatorInfo);
105 }
106 
sendViolationReport(LocalFrame * frame,const KURL & reportURL,PassRefPtr<FormData> report,ViolationReportType type)107 void PingLoader::sendViolationReport(LocalFrame* frame, const KURL& reportURL, PassRefPtr<FormData> report, ViolationReportType type)
108 {
109     ResourceRequest request(reportURL);
110     request.setRequestContext(blink::WebURLRequest::RequestContextPing);
111     request.setHTTPMethod("POST");
112     request.setHTTPContentType(type == ContentSecurityPolicyViolationReport ? "application/csp-report" : "application/json");
113     request.setHTTPBody(report);
114     frame->loader().fetchContext().addAdditionalRequestHeaders(frame->document(), request, FetchSubresource);
115     frame->loader().fetchContext().setFirstPartyForCookies(request);
116 
117     FetchInitiatorInfo initiatorInfo;
118     initiatorInfo.name = FetchInitiatorTypeNames::violationreport;
119     PingLoader::start(frame, request, initiatorInfo, SecurityOrigin::create(reportURL)->isSameSchemeHostPort(frame->document()->securityOrigin()) ? AllowStoredCredentials : DoNotAllowStoredCredentials);
120 }
121 
start(LocalFrame * frame,ResourceRequest & request,const FetchInitiatorInfo & initiatorInfo,StoredCredentials credentialsAllowed)122 void PingLoader::start(LocalFrame* frame, ResourceRequest& request, const FetchInitiatorInfo& initiatorInfo, StoredCredentials credentialsAllowed)
123 {
124     if (!frame->loader().mixedContentChecker()->canRunInsecureContent(frame->document()->securityOrigin(), request.url()))
125         return;
126 
127     OwnPtr<PingLoader> pingLoader = adoptPtr(new PingLoader(frame, request, initiatorInfo, credentialsAllowed));
128 
129     // Leak the ping loader, since it will kill itself as soon as it receives a response.
130     PingLoader* leakedPingLoader ALLOW_UNUSED = pingLoader.leakPtr();
131 }
132 
PingLoader(LocalFrame * frame,ResourceRequest & request,const FetchInitiatorInfo & initiatorInfo,StoredCredentials credentialsAllowed)133 PingLoader::PingLoader(LocalFrame* frame, ResourceRequest& request, const FetchInitiatorInfo& initiatorInfo, StoredCredentials credentialsAllowed)
134     : PageLifecycleObserver(frame->page())
135     , m_timeout(this, &PingLoader::timeout)
136     , m_url(request.url())
137     , m_identifier(createUniqueIdentifier())
138 {
139     frame->loader().client()->didDispatchPingLoader(request.url());
140 
141     TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "ResourceSendRequest", "data", InspectorSendRequestEvent::data(m_identifier, frame, request));
142     TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline.stack"), "CallStack", "stack", InspectorCallStackEvent::currentCallStack());
143     // FIXME(361045): remove InspectorInstrumentation calls once DevTools Timeline migrates to tracing.
144     InspectorInstrumentation::willSendRequest(frame, m_identifier, frame->loader().documentLoader(), request, ResourceResponse(), initiatorInfo);
145 
146     m_loader = adoptPtr(blink::Platform::current()->createURLLoader());
147     ASSERT(m_loader);
148     blink::WrappedResourceRequest wrappedRequest(request);
149     wrappedRequest.setAllowStoredCredentials(credentialsAllowed == AllowStoredCredentials);
150     m_loader->loadAsynchronously(wrappedRequest, this);
151 
152     // If the server never responds, FrameLoader won't be able to cancel this load and
153     // we'll sit here waiting forever. Set a very generous timeout, just in case.
154     m_timeout.startOneShot(60000, FROM_HERE);
155 }
156 
~PingLoader()157 PingLoader::~PingLoader()
158 {
159     if (m_loader)
160         m_loader->cancel();
161 }
162 
didReceiveResponse(blink::WebURLLoader *,const blink::WebURLResponse & response)163 void PingLoader::didReceiveResponse(blink::WebURLLoader*, const blink::WebURLResponse& response)
164 {
165     if (Page* page = this->page()) {
166         TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "ResourceFinish", "data", InspectorResourceFinishEvent::data(m_identifier, 0, true));
167         const ResourceResponse& resourceResponse = response.toResourceResponse();
168         InspectorInstrumentation::didReceiveResourceResponse(page->deprecatedLocalMainFrame(), m_identifier, 0, resourceResponse, 0);
169         InspectorInstrumentation::didFailLoading(page->deprecatedLocalMainFrame(), m_identifier, ResourceError::cancelledError(m_url));
170     }
171     delete this;
172 }
173 
didReceiveData(blink::WebURLLoader *,const char *,int,int)174 void PingLoader::didReceiveData(blink::WebURLLoader*, const char*, int, int)
175 {
176     if (Page* page = this->page()) {
177         TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "ResourceFinish", "data", InspectorResourceFinishEvent::data(m_identifier, 0, true));
178         InspectorInstrumentation::didFailLoading(page->deprecatedLocalMainFrame(), m_identifier, ResourceError::cancelledError(m_url));
179     }
180     delete this;
181 }
182 
didFinishLoading(blink::WebURLLoader *,double,int64_t)183 void PingLoader::didFinishLoading(blink::WebURLLoader*, double, int64_t)
184 {
185     if (Page* page = this->page()) {
186         TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "ResourceFinish", "data", InspectorResourceFinishEvent::data(m_identifier, 0, true));
187         InspectorInstrumentation::didFailLoading(page->deprecatedLocalMainFrame(), m_identifier, ResourceError::cancelledError(m_url));
188     }
189     delete this;
190 }
191 
didFail(blink::WebURLLoader *,const blink::WebURLError & resourceError)192 void PingLoader::didFail(blink::WebURLLoader*, const blink::WebURLError& resourceError)
193 {
194     if (Page* page = this->page()) {
195         TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "ResourceFinish", "data", InspectorResourceFinishEvent::data(m_identifier, 0, true));
196         InspectorInstrumentation::didFailLoading(page->deprecatedLocalMainFrame(), m_identifier, ResourceError(resourceError));
197     }
198     delete this;
199 }
200 
timeout(Timer<PingLoader> *)201 void PingLoader::timeout(Timer<PingLoader>*)
202 {
203     if (Page* page = this->page()) {
204         TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "ResourceFinish", "data", InspectorResourceFinishEvent::data(m_identifier, 0, true));
205         InspectorInstrumentation::didFailLoading(page->deprecatedLocalMainFrame(), m_identifier, ResourceError::cancelledError(m_url));
206     }
207     delete this;
208 }
209 
210 }
211