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 "PingLoader.h"
34
35 #include "FormData.h"
36 #include "Frame.h"
37 #include "FrameLoaderClient.h"
38 #include "Page.h"
39 #include "ProgressTracker.h"
40 #include "ResourceHandle.h"
41 #include "SecurityOrigin.h"
42 #include <wtf/OwnPtr.h>
43 #include <wtf/UnusedParam.h>
44 #include <wtf/text/CString.h>
45
46 namespace WebCore {
47
loadImage(Frame * frame,const KURL & url)48 void PingLoader::loadImage(Frame* frame, const KURL& url)
49 {
50 if (!frame->document()->securityOrigin()->canDisplay(url)) {
51 FrameLoader::reportLocalLoadFailed(frame, url);
52 return;
53 }
54
55 ResourceRequest request(url);
56 request.setTargetType(ResourceRequest::TargetIsImage);
57 request.setHTTPHeaderField("Cache-Control", "max-age=0");
58 if (!SecurityOrigin::shouldHideReferrer(request.url(), frame->loader()->outgoingReferrer()))
59 request.setHTTPReferrer(frame->loader()->outgoingReferrer());
60 frame->loader()->addExtraFieldsToSubresourceRequest(request);
61 OwnPtr<PingLoader> pingLoader = adoptPtr(new PingLoader(frame, request));
62
63 // Leak the ping loader, since it will kill itself as soon as it receives a response.
64 PingLoader* leakedPingLoader = pingLoader.leakPtr();
65 UNUSED_PARAM(leakedPingLoader);
66 }
67
68 // http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#hyperlink-auditing
sendPing(Frame * frame,const KURL & pingURL,const KURL & destinationURL)69 void PingLoader::sendPing(Frame* frame, const KURL& pingURL, const KURL& destinationURL)
70 {
71 ResourceRequest request(pingURL);
72 request.setTargetType(ResourceRequest::TargetIsSubresource);
73 request.setHTTPMethod("POST");
74 request.setHTTPContentType("text/ping");
75 request.setHTTPBody(FormData::create("PING"));
76 request.setHTTPHeaderField("Cache-Control", "max-age=0");
77 frame->loader()->addExtraFieldsToSubresourceRequest(request);
78
79 SecurityOrigin* sourceOrigin = frame->document()->securityOrigin();
80 RefPtr<SecurityOrigin> pingOrigin = SecurityOrigin::create(pingURL);
81 FrameLoader::addHTTPOriginIfNeeded(request, sourceOrigin->toString());
82 request.setHTTPHeaderField("Ping-To", destinationURL);
83 if (sourceOrigin->isSameSchemeHostPort(pingOrigin.get()))
84 request.setHTTPHeaderField("Ping-From", frame->document()->url());
85 else if (!SecurityOrigin::shouldHideReferrer(pingURL, frame->loader()->outgoingReferrer()))
86 request.setHTTPReferrer(frame->loader()->outgoingReferrer());
87 OwnPtr<PingLoader> pingLoader = adoptPtr(new PingLoader(frame, request));
88
89 // Leak the ping loader, since it will kill itself as soon as it receives a response.
90 PingLoader* leakedPingLoader = pingLoader.leakPtr();
91 UNUSED_PARAM(leakedPingLoader);
92 }
93
PingLoader(Frame * frame,const ResourceRequest & request)94 PingLoader::PingLoader(Frame* frame, const ResourceRequest& request)
95 : m_timeout(this, &PingLoader::timeout)
96 {
97 unsigned long identifier = frame->page()->progress()->createUniqueIdentifier();
98 m_shouldUseCredentialStorage = frame->loader()->client()->shouldUseCredentialStorage(frame->loader()->activeDocumentLoader(), identifier);
99 m_handle = ResourceHandle::create(frame->loader()->networkingContext(), request, this, false, false);
100
101 // If the server never responds, FrameLoader won't be able to cancel this load and
102 // we'll sit here waiting forever. Set a very generous timeout, just in case.
103 m_timeout.startOneShot(60000);
104 }
105
~PingLoader()106 PingLoader::~PingLoader()
107 {
108 m_handle->cancel();
109 }
110
111 }
112