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1 /* | 1 /* |
2 * Copyright (C) 2013 Google Inc. All rights reserved. | 2 * Copyright (C) 2013 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
(...skipping 15 matching lines...) Expand all Loading... |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 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. | 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 */ | 29 */ |
30 | 30 |
31 #include "config.h" | 31 #include "config.h" |
32 #include "modules/crypto/CryptoResultImpl.h" | 32 #include "modules/crypto/CryptoResultImpl.h" |
33 | 33 |
34 #include "bindings/v8/NewScriptState.h" | 34 #include "bindings/v8/NewScriptState.h" |
35 #include "bindings/v8/ScriptPromiseResolverWithContext.h" | 35 #include "bindings/v8/ScriptPromiseResolverWithContext.h" |
| 36 #include "core/dom/ContextLifecycleObserver.h" |
36 #include "core/dom/ExecutionContext.h" | 37 #include "core/dom/ExecutionContext.h" |
37 #include "modules/crypto/Key.h" | 38 #include "modules/crypto/Key.h" |
38 #include "modules/crypto/KeyPair.h" | 39 #include "modules/crypto/KeyPair.h" |
39 #include "modules/crypto/NormalizeAlgorithm.h" | 40 #include "modules/crypto/NormalizeAlgorithm.h" |
40 #include "public/platform/Platform.h" | 41 #include "public/platform/Platform.h" |
41 #include "public/platform/WebArrayBuffer.h" | 42 #include "public/platform/WebArrayBuffer.h" |
42 #include "public/platform/WebCryptoAlgorithm.h" | 43 #include "public/platform/WebCryptoAlgorithm.h" |
43 #include "wtf/ArrayBufferView.h" | 44 #include "wtf/ArrayBufferView.h" |
44 | 45 |
45 namespace WebCore { | 46 namespace WebCore { |
46 | 47 |
| 48 // The PromiseState class contains all the state which is tied to an |
| 49 // ExecutionContext. Whereas CryptoResultImpl can be deleted from any thread, |
| 50 // PromiseState is not thread safe and must only be accessed and deleted from |
| 51 // the blink thread. |
| 52 // |
| 53 // This is achieved by making CryptoResultImpl hold a WeakPtr to the PromiseStat
e. |
| 54 // The PromiseState deletes itself after being notified of completion. |
| 55 // Additionally the PromiseState deletes itself when the ExecutionContext is |
| 56 // destroyed (necessary to avoid leaks when dealing with WebWorker threads, |
| 57 // which may die before the operation is completed). |
| 58 class CryptoResultImpl::PromiseState FINAL : public ContextLifecycleObserver { |
| 59 public: |
| 60 static WeakPtr<PromiseState> create(ExecutionContext* context) |
| 61 { |
| 62 PromiseState* promiseState = new PromiseState(context); |
| 63 return promiseState->m_weakFactory.createWeakPtr(); |
| 64 } |
| 65 |
| 66 // Override from ContextLifecycleObserver |
| 67 virtual void contextDestroyed() OVERRIDE |
| 68 { |
| 69 ContextLifecycleObserver::contextDestroyed(); |
| 70 delete this; |
| 71 } |
| 72 |
| 73 ScriptPromise promise() |
| 74 { |
| 75 return m_promiseResolver->promise(); |
| 76 } |
| 77 |
| 78 void completeWithError(const blink::WebString& errorDetails) |
| 79 { |
| 80 if (!errorDetails.isEmpty()) { |
| 81 // FIXME: Include the line number which started the crypto operation
. |
| 82 executionContext()->addConsoleMessage(JSMessageSource, ErrorMessageL
evel, errorDetails); |
| 83 } |
| 84 m_promiseResolver->reject(V8NullType()); |
| 85 delete this; |
| 86 } |
| 87 |
| 88 void completeWithError() |
| 89 { |
| 90 completeWithError(blink::WebString()); |
| 91 } |
| 92 |
| 93 void completeWithBuffer(const blink::WebArrayBuffer& buffer) |
| 94 { |
| 95 m_promiseResolver->resolve(PassRefPtr<ArrayBuffer>(buffer)); |
| 96 delete this; |
| 97 } |
| 98 |
| 99 void completeWithBoolean(bool b) |
| 100 { |
| 101 m_promiseResolver->resolve(b); |
| 102 delete this; |
| 103 } |
| 104 |
| 105 void completeWithKey(const blink::WebCryptoKey& key) |
| 106 { |
| 107 m_promiseResolver->resolve(Key::create(key)); |
| 108 delete this; |
| 109 } |
| 110 |
| 111 void completeWithKeyPair(const blink::WebCryptoKey& publicKey, const blink::
WebCryptoKey& privateKey) |
| 112 { |
| 113 m_promiseResolver->resolve(KeyPair::create(publicKey, privateKey)); |
| 114 delete this; |
| 115 } |
| 116 |
| 117 private: |
| 118 explicit PromiseState(ExecutionContext* context) |
| 119 : ContextLifecycleObserver(context) |
| 120 , m_weakFactory(this) |
| 121 , m_promiseResolver(ScriptPromiseResolverWithContext::create(NewScriptSt
ate::current(toIsolate(context)))) |
| 122 { |
| 123 } |
| 124 |
| 125 WeakPtrFactory<PromiseState> m_weakFactory; |
| 126 RefPtr<ScriptPromiseResolverWithContext> m_promiseResolver; |
| 127 }; |
| 128 |
47 CryptoResultImpl::~CryptoResultImpl() | 129 CryptoResultImpl::~CryptoResultImpl() |
48 { | 130 { |
49 } | 131 } |
50 | 132 |
51 PassRefPtr<CryptoResultImpl> CryptoResultImpl::create() | 133 PassRefPtr<CryptoResultImpl> CryptoResultImpl::create() |
52 { | 134 { |
53 return adoptRef(new CryptoResultImpl(callingExecutionContext(v8::Isolate::Ge
tCurrent()))); | 135 return adoptRef(new CryptoResultImpl(callingExecutionContext(v8::Isolate::Ge
tCurrent()))); |
54 } | 136 } |
55 | 137 |
56 void CryptoResultImpl::completeWithError(const blink::WebString& errorDetails) | 138 void CryptoResultImpl::completeWithError(const blink::WebString& errorDetails) |
57 { | 139 { |
58 ASSERT(!m_finished); | 140 if (m_promiseState) |
59 | 141 m_promiseState->completeWithError(errorDetails); |
60 if (canCompletePromise()) { | |
61 if (!errorDetails.isEmpty()) { | |
62 // FIXME: Include the line number which started the crypto operation
. | |
63 executionContext()->addConsoleMessage(JSMessageSource, ErrorMessageL
evel, errorDetails); | |
64 } | |
65 m_promiseResolver->reject(V8NullType()); | |
66 } | |
67 } | 142 } |
68 | 143 |
69 void CryptoResultImpl::completeWithError() | 144 void CryptoResultImpl::completeWithError() |
70 { | 145 { |
71 completeWithError(blink::WebString()); | 146 completeWithError(blink::WebString()); |
72 } | 147 } |
73 | 148 |
74 void CryptoResultImpl::completeWithBuffer(const blink::WebArrayBuffer& buffer) | 149 void CryptoResultImpl::completeWithBuffer(const blink::WebArrayBuffer& buffer) |
75 { | 150 { |
76 ASSERT(!m_finished); | 151 if (m_promiseState) |
77 | 152 m_promiseState->completeWithBuffer(buffer); |
78 if (canCompletePromise()) { | |
79 m_promiseResolver->resolve(PassRefPtr<ArrayBuffer>(buffer)); | |
80 } | |
81 | |
82 finish(); | |
83 } | 153 } |
84 | 154 |
85 void CryptoResultImpl::completeWithBoolean(bool b) | 155 void CryptoResultImpl::completeWithBoolean(bool b) |
86 { | 156 { |
87 ASSERT(!m_finished); | 157 if (m_promiseState) |
88 | 158 m_promiseState->completeWithBoolean(b); |
89 if (canCompletePromise()) { | |
90 m_promiseResolver->resolve(b); | |
91 } | |
92 | |
93 finish(); | |
94 } | 159 } |
95 | 160 |
96 void CryptoResultImpl::completeWithKey(const blink::WebCryptoKey& key) | 161 void CryptoResultImpl::completeWithKey(const blink::WebCryptoKey& key) |
97 { | 162 { |
98 ASSERT(!m_finished); | 163 if (m_promiseState) |
99 | 164 m_promiseState->completeWithKey(key); |
100 if (canCompletePromise()) { | |
101 m_promiseResolver->resolve(Key::create(key)); | |
102 } | |
103 | |
104 finish(); | |
105 } | 165 } |
106 | 166 |
107 void CryptoResultImpl::completeWithKeyPair(const blink::WebCryptoKey& publicKey,
const blink::WebCryptoKey& privateKey) | 167 void CryptoResultImpl::completeWithKeyPair(const blink::WebCryptoKey& publicKey,
const blink::WebCryptoKey& privateKey) |
108 { | 168 { |
109 ASSERT(!m_finished); | 169 if (m_promiseState) |
110 | 170 m_promiseState->completeWithKeyPair(publicKey, privateKey); |
111 if (canCompletePromise()) { | |
112 m_promiseResolver->resolve(KeyPair::create(publicKey, privateKey)); | |
113 } | |
114 | |
115 finish(); | |
116 } | 171 } |
117 | 172 |
118 CryptoResultImpl::CryptoResultImpl(ExecutionContext* context) | 173 CryptoResultImpl::CryptoResultImpl(ExecutionContext* context) |
119 : ContextLifecycleObserver(context) | 174 : m_promiseState(PromiseState::create(context)) |
120 , m_promiseResolver(ScriptPromiseResolverWithContext::create(NewScriptState:
:current(toIsolate(context)))) | |
121 #if !ASSERT_DISABLED | |
122 , m_owningThread(currentThread()) | |
123 , m_finished(false) | |
124 #endif | |
125 { | 175 { |
126 } | 176 } |
127 | 177 |
128 void CryptoResultImpl::finish() | 178 ScriptPromise CryptoResultImpl::promise() |
129 { | 179 { |
130 #if !ASSERT_DISABLED | 180 return m_promiseState->promise(); |
131 m_finished = true; | |
132 #endif | |
133 clearPromiseResolver(); | |
134 } | |
135 | |
136 void CryptoResultImpl::clearPromiseResolver() | |
137 { | |
138 m_promiseResolver.clear(); | |
139 } | |
140 | |
141 void CryptoResultImpl::CheckValidThread() const | |
142 { | |
143 ASSERT(m_owningThread == currentThread()); | |
144 } | |
145 | |
146 void CryptoResultImpl::contextDestroyed() | |
147 { | |
148 ContextLifecycleObserver::contextDestroyed(); | |
149 | |
150 // Abandon the promise without completing it when the context goes away. | |
151 clearPromiseResolver(); | |
152 ASSERT(!canCompletePromise()); | |
153 } | |
154 | |
155 bool CryptoResultImpl::canCompletePromise() const | |
156 { | |
157 CheckValidThread(); | |
158 ExecutionContext* context = executionContext(); | |
159 return context && !context->activeDOMObjectsAreSuspended() && !context->acti
veDOMObjectsAreStopped(); | |
160 } | 181 } |
161 | 182 |
162 } // namespace WebCore | 183 } // namespace WebCore |
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