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| 1 /* | |
| 2 * Copyright (C) 2013 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 #ifndef CryptoOperation_h | |
| 32 #define CryptoOperation_h | |
| 33 | |
| 34 #include "bindings/v8/ScriptObject.h" | |
| 35 #include "bindings/v8/ScriptWrappable.h" | |
| 36 #include "modules/crypto/Algorithm.h" | |
| 37 #include "public/platform/WebCrypto.h" | |
| 38 #include "public/platform/WebCryptoAlgorithm.h" | |
| 39 #include "wtf/Forward.h" | |
| 40 #include "wtf/PassRefPtr.h" | |
| 41 #include "wtf/ThreadSafeRefCounted.h" | |
| 42 | |
| 43 namespace WebCore { | |
| 44 | |
| 45 class ScriptPromiseResolver; | |
| 46 class ExceptionState; | |
| 47 | |
| 48 typedef int ExceptionCode; | |
| 49 | |
| 50 // CryptoOperation vs CryptoOperationImpl: | |
| 51 // | |
| 52 // A CryptoOperation corresponds with the request from JavaScript to start a | |
| 53 // multi-part cryptographic operation. This is forwarded to the Platform layer, | |
| 54 // which creates a WebCryptoOperation. When the WebCryptoOperation eventually | |
| 55 // completes, it resolves a Promise. | |
| 56 // | |
| 57 // To avoid a reference cycle between WebCryptoOperation and CryptoOperation, | |
| 58 // WebCryptoOperation's result handle holds a reference to | |
| 59 // CryptoOperationImpl rather than CryptoOperation. This prevents extending the | |
| 60 // lifetime of CryptoOperation beyond JavaScript garbage collection, which is | |
| 61 // important since: | |
| 62 // | |
| 63 // * When JavaScript garbage collects CryptoOperation and finish() has NOT | |
| 64 // been called on it, the Platform operation can no longer complete and | |
| 65 // should therefore be aborted. | |
| 66 // * The WebCryptoOperation may outlive CryptoOperation if finish() was | |
| 67 // called, as the result is delivered to a separate Promise (this is | |
| 68 // different than what the current version of the spec says). | |
| 69 | |
| 70 class CryptoOperationImpl : public WebKit::WebCryptoOperationResultPrivate, publ
ic ThreadSafeRefCounted<CryptoOperationImpl> { | |
| 71 public: | |
| 72 static PassRefPtr<CryptoOperationImpl> create() { return adoptRef(new Crypto
OperationImpl); } | |
| 73 | |
| 74 bool throwInitializationError(ExceptionState&); | |
| 75 | |
| 76 // The CryptoOperation which started the request is getting destroyed. | |
| 77 void detach(); | |
| 78 | |
| 79 void process(const void* bytes, size_t); | |
| 80 | |
| 81 ScriptObject finish(); | |
| 82 ScriptObject abort(); | |
| 83 | |
| 84 // WebCryptoOperationResultPrivate implementation. | |
| 85 virtual void initializationFailed() OVERRIDE; | |
| 86 virtual void initializationSucceeded(WebKit::WebCryptoOperation*) OVERRIDE; | |
| 87 virtual void completeWithError() OVERRIDE; | |
| 88 virtual void completeWithArrayBuffer(const WebKit::WebArrayBuffer&) OVERRIDE
; | |
| 89 virtual void completeWithBoolean(bool) OVERRIDE; | |
| 90 virtual void ref() OVERRIDE; | |
| 91 virtual void deref() OVERRIDE; | |
| 92 | |
| 93 private: | |
| 94 enum State { | |
| 95 // Constructing the WebCryptoOperationImpl. | |
| 96 Initializing, | |
| 97 | |
| 98 // Accepting calls to process(). | |
| 99 Processing, | |
| 100 | |
| 101 // finish() has been called, but the Promise has not been resolved yet. | |
| 102 Finishing, | |
| 103 | |
| 104 // The operation either: | |
| 105 // - completed successfully | |
| 106 // - failed | |
| 107 // - was aborted | |
| 108 Done, | |
| 109 }; | |
| 110 | |
| 111 CryptoOperationImpl(); | |
| 112 | |
| 113 ScriptPromiseResolver* promiseResolver(); | |
| 114 | |
| 115 State m_state; | |
| 116 | |
| 117 WebKit::WebCryptoOperation* m_impl; | |
| 118 RefPtr<ScriptPromiseResolver> m_promiseResolver; | |
| 119 ExceptionCode m_initializationError; | |
| 120 }; | |
| 121 | |
| 122 class CryptoOperation : public ScriptWrappable, public RefCounted<CryptoOperatio
n> { | |
| 123 public: | |
| 124 ~CryptoOperation(); | |
| 125 static PassRefPtr<CryptoOperation> create(const WebKit::WebCryptoAlgorithm&,
CryptoOperationImpl*); | |
| 126 | |
| 127 CryptoOperation* process(ArrayBuffer* data); | |
| 128 CryptoOperation* process(ArrayBufferView* data); | |
| 129 | |
| 130 ScriptObject finish(); | |
| 131 ScriptObject abort(); | |
| 132 | |
| 133 Algorithm* algorithm(); | |
| 134 | |
| 135 CryptoOperationImpl* impl() { return m_impl.get(); } | |
| 136 | |
| 137 private: | |
| 138 explicit CryptoOperation(const WebKit::WebCryptoAlgorithm&, CryptoOperationI
mpl*); | |
| 139 | |
| 140 WebKit::WebCryptoAlgorithm m_algorithm; | |
| 141 RefPtr<Algorithm> m_algorithmNode; | |
| 142 | |
| 143 RefPtr<CryptoOperationImpl> m_impl; | |
| 144 }; | |
| 145 | |
| 146 } // namespace WebCore | |
| 147 | |
| 148 #endif | |
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Chromium Code Reviews
Issue 23164012:
WebCrypto: Remove support for multi-part operations. (Closed)
Base URL: svn://svn.chromium.org/blink/trunk