1/*
2 * Copyright (C) 2016-2019 Apple 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
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "PingLoad.h"
28
29#include "AuthenticationChallengeDisposition.h"
30#include "AuthenticationManager.h"
31#include "Logging.h"
32#include "NetworkConnectionToWebProcess.h"
33#include "NetworkLoadChecker.h"
34#include "NetworkProcess.h"
35#include "WebErrors.h"
36
37#define RELEASE_LOG_IF_ALLOWED(fmt, ...) RELEASE_LOG_IF(m_parameters.sessionID.isAlwaysOnLoggingAllowed(), Network, "%p - PingLoad::" fmt, this, ##__VA_ARGS__)
38
39namespace WebKit {
40
41using namespace WebCore;
42
43PingLoad::PingLoad(NetworkProcess& networkProcess, NetworkResourceLoadParameters&& parameters, CompletionHandler<void(const ResourceError&, const ResourceResponse&)>&& completionHandler)
44 : m_parameters(WTFMove(parameters))
45 , m_completionHandler(WTFMove(completionHandler))
46 , m_timeoutTimer(*this, &PingLoad::timeoutTimerFired)
47 , m_networkLoadChecker(makeUniqueRef<NetworkLoadChecker>(networkProcess, FetchOptions { m_parameters.options}, m_parameters.sessionID, m_parameters.webPageID, m_parameters.webFrameID, WTFMove(m_parameters.originalRequestHeaders), URL { m_parameters.request.url() }, m_parameters.sourceOrigin.copyRef(), m_parameters.preflightPolicy, m_parameters.request.httpReferrer()))
48{
49 initialize(networkProcess);
50}
51
52PingLoad::PingLoad(NetworkConnectionToWebProcess& connection, NetworkProcess& networkProcess, NetworkResourceLoadParameters&& parameters, CompletionHandler<void(const ResourceError&, const ResourceResponse&)>&& completionHandler)
53 : m_parameters(WTFMove(parameters))
54 , m_completionHandler(WTFMove(completionHandler))
55 , m_timeoutTimer(*this, &PingLoad::timeoutTimerFired)
56 , m_networkLoadChecker(makeUniqueRef<NetworkLoadChecker>(networkProcess, FetchOptions { m_parameters.options}, m_parameters.sessionID, m_parameters.webPageID, m_parameters.webFrameID, WTFMove(m_parameters.originalRequestHeaders), URL { m_parameters.request.url() }, m_parameters.sourceOrigin.copyRef(), m_parameters.preflightPolicy, m_parameters.request.httpReferrer()))
57 , m_blobFiles(connection.resolveBlobReferences(m_parameters))
58{
59 for (auto& file : m_blobFiles) {
60 if (file)
61 file->prepareForFileAccess();
62 }
63
64 initialize(networkProcess);
65}
66
67void PingLoad::initialize(NetworkProcess& networkProcess)
68{
69 m_networkLoadChecker->enableContentExtensionsCheck();
70 if (m_parameters.cspResponseHeaders)
71 m_networkLoadChecker->setCSPResponseHeaders(WTFMove(m_parameters.cspResponseHeaders.value()));
72#if ENABLE(CONTENT_EXTENSIONS)
73 m_networkLoadChecker->setContentExtensionController(WTFMove(m_parameters.mainDocumentURL), m_parameters.userContentControllerIdentifier);
74#endif
75
76 // If the server never responds, this object will hang around forever.
77 // Set a very generous timeout, just in case.
78 m_timeoutTimer.startOneShot(60000_s);
79
80 m_networkLoadChecker->check(ResourceRequest { m_parameters.request }, nullptr, [this, weakThis = makeWeakPtr(*this), networkProcess = makeRef(networkProcess)] (auto&& result) {
81 if (!weakThis)
82 return;
83 WTF::switchOn(result,
84 [this] (ResourceError& error) {
85 this->didFinish(error);
86 },
87 [] (NetworkLoadChecker::RedirectionTriplet& triplet) {
88 // We should never send a synthetic redirect for PingLoads.
89 ASSERT_NOT_REACHED();
90 },
91 [&] (ResourceRequest& request) {
92 this->loadRequest(networkProcess, WTFMove(request));
93 }
94 );
95 });
96}
97
98PingLoad::~PingLoad()
99{
100 if (m_task) {
101 ASSERT(m_task->client() == this);
102 m_task->clearClient();
103 m_task->cancel();
104 }
105 for (auto& file : m_blobFiles) {
106 if (file)
107 file->revokeFileAccess();
108 }
109}
110
111void PingLoad::didFinish(const ResourceError& error, const ResourceResponse& response)
112{
113 m_completionHandler(error, response);
114 delete this;
115}
116
117void PingLoad::loadRequest(NetworkProcess& networkProcess, ResourceRequest&& request)
118{
119 RELEASE_LOG_IF_ALLOWED("startNetworkLoad");
120 if (auto* networkSession = networkProcess.networkSession(m_parameters.sessionID)) {
121 auto loadParameters = m_parameters;
122 loadParameters.request = WTFMove(request);
123 m_task = NetworkDataTask::create(*networkSession, *this, WTFMove(loadParameters));
124 m_task->resume();
125 } else
126 ASSERT_NOT_REACHED();
127}
128
129void PingLoad::willPerformHTTPRedirection(ResourceResponse&& redirectResponse, ResourceRequest&& request, RedirectCompletionHandler&& completionHandler)
130{
131 m_networkLoadChecker->checkRedirection(ResourceRequest { }, WTFMove(request), WTFMove(redirectResponse), nullptr, [this, completionHandler = WTFMove(completionHandler)] (auto&& result) mutable {
132 if (!result.has_value()) {
133 completionHandler({ });
134 this->didFinish(result.error());
135 return;
136 }
137 auto request = WTFMove(result->redirectRequest);
138 if (!request.url().protocolIsInHTTPFamily()) {
139 this->didFinish(ResourceError { String { }, 0, request.url(), "Redirection to URL with a scheme that is not HTTP(S)"_s, ResourceError::Type::AccessControl });
140 return;
141 }
142
143 completionHandler(WTFMove(request));
144 });
145}
146
147void PingLoad::didReceiveChallenge(AuthenticationChallenge&& challenge, ChallengeCompletionHandler&& completionHandler)
148{
149 RELEASE_LOG_IF_ALLOWED("didReceiveChallenge");
150 if (challenge.protectionSpace().authenticationScheme() == ProtectionSpaceAuthenticationSchemeServerTrustEvaluationRequested) {
151 completionHandler(AuthenticationChallengeDisposition::PerformDefaultHandling, { });
152 return;
153 }
154 auto weakThis = makeWeakPtr(*this);
155 completionHandler(AuthenticationChallengeDisposition::Cancel, { });
156 if (!weakThis)
157 return;
158 didFinish(ResourceError { String(), 0, currentURL(), "Failed HTTP authentication"_s, ResourceError::Type::AccessControl });
159}
160
161void PingLoad::didReceiveResponse(ResourceResponse&& response, ResponseCompletionHandler&& completionHandler)
162{
163 RELEASE_LOG_IF_ALLOWED("didReceiveResponse - httpStatusCode: %d", response.httpStatusCode());
164 auto weakThis = makeWeakPtr(*this);
165 completionHandler(PolicyAction::Ignore);
166 if (!weakThis)
167 return;
168 didFinish({ }, response);
169}
170
171void PingLoad::didReceiveData(Ref<SharedBuffer>&&)
172{
173 RELEASE_LOG_IF_ALLOWED("didReceiveData");
174 ASSERT_NOT_REACHED();
175}
176
177void PingLoad::didCompleteWithError(const ResourceError& error, const NetworkLoadMetrics&)
178{
179 if (error.isNull())
180 RELEASE_LOG_IF_ALLOWED("didComplete");
181 else
182 RELEASE_LOG_IF_ALLOWED("didCompleteWithError, error_code: %d", error.errorCode());
183
184 didFinish(error);
185}
186
187void PingLoad::didSendData(uint64_t totalBytesSent, uint64_t totalBytesExpectedToSend)
188{
189}
190
191void PingLoad::wasBlocked()
192{
193 RELEASE_LOG_IF_ALLOWED("wasBlocked");
194 didFinish(blockedError(ResourceRequest { currentURL() }));
195}
196
197void PingLoad::cannotShowURL()
198{
199 RELEASE_LOG_IF_ALLOWED("cannotShowURL");
200 didFinish(cannotShowURLError(ResourceRequest { currentURL() }));
201}
202
203void PingLoad::timeoutTimerFired()
204{
205 RELEASE_LOG_IF_ALLOWED("timeoutTimerFired");
206 didFinish(ResourceError { String(), 0, currentURL(), "Load timed out"_s, ResourceError::Type::Timeout });
207}
208
209const URL& PingLoad::currentURL() const
210{
211 return m_networkLoadChecker->url();
212}
213
214} // namespace WebKit
215
216#undef RELEASE_LOG_IF_ALLOWED
217