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1 /* | |
2 * Copyright (C) 2009 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 #include "web/SharedWorkerRepositoryClientImpl.h" | |
32 | |
33 #include <memory> | |
34 #include <utility> | |
35 #include "core/dom/ExecutionContext.h" | |
36 #include "core/events/Event.h" | |
37 #include "core/frame/UseCounter.h" | |
38 #include "core/frame/csp/ContentSecurityPolicy.h" | |
39 #include "core/probe/CoreProbes.h" | |
40 #include "core/workers/SharedWorker.h" | |
41 #include "platform/loader/fetch/ResourceResponse.h" | |
42 #include "platform/wtf/PtrUtil.h" | |
43 #include "public/platform/WebContentSecurityPolicy.h" | |
44 #include "public/platform/WebMessagePortChannel.h" | |
45 #include "public/platform/WebString.h" | |
46 #include "public/platform/WebURL.h" | |
47 #include "public/web/WebFrameClient.h" | |
48 #include "public/web/WebKit.h" | |
49 #include "public/web/WebSharedWorker.h" | |
50 #include "public/web/WebSharedWorkerConnectListener.h" | |
51 #include "public/web/WebSharedWorkerCreationErrors.h" | |
52 #include "public/web/WebSharedWorkerRepositoryClient.h" | |
53 #include "web/WebLocalFrameImpl.h" | |
54 | |
55 namespace blink { | |
56 | |
57 // Implementation of the callback interface passed to the embedder. This will be | |
58 // destructed when a connection to a shared worker is established. | |
59 class SharedWorkerConnectListener final | |
60 : public WebSharedWorkerConnectListener { | |
61 public: | |
62 explicit SharedWorkerConnectListener(SharedWorker* worker) | |
63 : worker_(worker) {} | |
64 | |
65 ~SharedWorkerConnectListener() override { | |
66 DCHECK(!worker_->IsBeingConnected()); | |
67 } | |
68 | |
69 // WebSharedWorkerConnectListener overrides. | |
70 | |
71 void WorkerCreated(WebWorkerCreationError creation_error) override { | |
72 worker_->SetIsBeingConnected(true); | |
73 | |
74 // No nested workers (for now) - connect() should only be called from | |
75 // document context. | |
76 DCHECK(worker_->GetExecutionContext()->IsDocument()); | |
77 Document* document = ToDocument(worker_->GetExecutionContext()); | |
78 bool is_secure_context = worker_->GetExecutionContext()->IsSecureContext(); | |
79 switch (creation_error) { | |
80 case kWebWorkerCreationErrorNone: | |
81 return; | |
82 case kWebWorkerCreationErrorSecureContextMismatch: | |
83 UseCounter::Feature feature = | |
84 is_secure_context | |
85 ? UseCounter::kNonSecureSharedWorkerAccessedFromSecureContext | |
86 : UseCounter::kSecureSharedWorkerAccessedFromNonSecureContext; | |
87 UseCounter::Count(document, feature); | |
88 return; | |
89 } | |
90 } | |
91 | |
92 void ScriptLoadFailed() override { | |
93 worker_->DispatchEvent(Event::CreateCancelable(EventTypeNames::error)); | |
94 worker_->SetIsBeingConnected(false); | |
95 } | |
96 | |
97 void Connected() override { worker_->SetIsBeingConnected(false); } | |
98 | |
99 void CountFeature(uint32_t feature) override { | |
100 UseCounter::Count(worker_->GetExecutionContext(), | |
101 static_cast<UseCounter::Feature>(feature)); | |
102 } | |
103 | |
104 Persistent<SharedWorker> worker_; | |
105 }; | |
106 | |
107 static WebSharedWorkerRepositoryClient::DocumentID GetId(void* document) { | |
108 DCHECK(document); | |
109 return reinterpret_cast<WebSharedWorkerRepositoryClient::DocumentID>( | |
110 document); | |
111 } | |
112 | |
113 void SharedWorkerRepositoryClientImpl::Connect( | |
114 SharedWorker* worker, | |
115 std::unique_ptr<WebMessagePortChannel> port, | |
116 const KURL& url, | |
117 const String& name) { | |
118 DCHECK(client_); | |
119 | |
120 // No nested workers (for now) - connect() should only be called from document | |
121 // context. | |
122 DCHECK(worker->GetExecutionContext()->IsDocument()); | |
123 Document* document = ToDocument(worker->GetExecutionContext()); | |
124 | |
125 // TODO(estark): this is broken, as it only uses the first header | |
126 // when multiple might have been sent. Fix by making the | |
127 // SharedWorkerConnectListener interface take a map that can contain | |
128 // multiple headers. | |
129 std::unique_ptr<Vector<CSPHeaderAndType>> headers = | |
130 worker->GetExecutionContext()->GetContentSecurityPolicy()->Headers(); | |
131 WebString header; | |
132 WebContentSecurityPolicyType header_type = | |
133 kWebContentSecurityPolicyTypeReport; | |
134 | |
135 if (headers->size() > 0) { | |
136 header = (*headers)[0].first; | |
137 header_type = | |
138 static_cast<WebContentSecurityPolicyType>((*headers)[0].second); | |
139 } | |
140 | |
141 bool is_secure_context = worker->GetExecutionContext()->IsSecureContext(); | |
142 std::unique_ptr<WebSharedWorkerConnectListener> listener = | |
143 WTF::MakeUnique<SharedWorkerConnectListener>(worker); | |
144 client_->Connect( | |
145 url, name, GetId(document), header, header_type, | |
146 worker->GetExecutionContext()->GetSecurityContext().AddressSpace(), | |
147 is_secure_context ? kWebSharedWorkerCreationContextTypeSecure | |
148 : kWebSharedWorkerCreationContextTypeNonsecure, | |
149 std::move(port), std::move(listener)); | |
150 } | |
151 | |
152 void SharedWorkerRepositoryClientImpl::DocumentDetached(Document* document) { | |
153 DCHECK(client_); | |
154 client_->DocumentDetached(GetId(document)); | |
155 } | |
156 | |
157 SharedWorkerRepositoryClientImpl::SharedWorkerRepositoryClientImpl( | |
158 WebSharedWorkerRepositoryClient* client) | |
159 : client_(client) {} | |
160 | |
161 } // namespace blink | |
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