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| 1 /* | 1 /* |
| 2 * Copyright (C) 2011 Google Inc. All rights reserved. | 2 * Copyright (C) 2011 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 | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * | 7 * |
| 8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. 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 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
| 11 * notice, this list of conditions and the following disclaimer in the | 11 * notice, this list of conditions and the following disclaimer in the |
| 12 * documentation and/or other materials provided with the distribution. | 12 * documentation and/or other materials provided with the distribution. |
| 13 * 3. Neither the name of Google, Inc. ("Google") nor the names of | 13 * 3. Neither the name of Google, Inc. ("Google") nor the names of |
| 14 * its contributors may be used to endorse or promote products derived | 14 * its contributors may be used to endorse or promote products derived |
| 15 * from this software without specific prior written permission. | 15 * from this software without specific prior written permission. |
| 16 * | 16 * |
| 17 * THIS SOFTWARE IS PROVIDED BY GOOGLE AND ITS CONTRIBUTORS "AS IS" AND ANY | 17 * THIS SOFTWARE IS PROVIDED BY GOOGLE AND ITS CONTRIBUTORS "AS IS" AND ANY |
| 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY | 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
| 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 */ | 27 */ |
| 28 | 28 |
| 29 | 29 |
| 30 #include "config.h" | 30 #include "config.h" |
| 31 #include "core/page/Crypto.h" | 31 #include "modules/webcrypto/Crypto.h" |
| 32 | 32 |
| 33 #include "core/dom/ExceptionCode.h" | 33 #include "core/dom/ExceptionCode.h" |
| 34 #include <wtf/ArrayBufferView.h> | 34 #include "wtf/ArrayBufferView.h" |
| 35 #include <wtf/CryptographicallyRandomNumber.h> | 35 #include "wtf/CryptographicallyRandomNumber.h" |
| 36 | 36 |
| 37 namespace WebCore { | 37 namespace WebCore { |
| 38 | 38 |
| 39 namespace { | 39 namespace { |
| 40 | 40 |
| 41 bool isIntegerArray(ArrayBufferView* array) | 41 bool isIntegerArray(ArrayBufferView* array) |
| 42 { | 42 { |
| 43 ArrayBufferView::ViewType type = array->getType(); | 43 ArrayBufferView::ViewType type = array->getType(); |
| 44 return type == ArrayBufferView::TypeInt8 | 44 return type == ArrayBufferView::TypeInt8 |
| 45 || type == ArrayBufferView::TypeUint8 | 45 || type == ArrayBufferView::TypeUint8 |
| 46 || type == ArrayBufferView::TypeUint8Clamped | 46 || type == ArrayBufferView::TypeUint8Clamped |
| 47 || type == ArrayBufferView::TypeInt16 | 47 || type == ArrayBufferView::TypeInt16 |
| 48 || type == ArrayBufferView::TypeUint16 | 48 || type == ArrayBufferView::TypeUint16 |
| 49 || type == ArrayBufferView::TypeInt32 | 49 || type == ArrayBufferView::TypeInt32 |
| 50 || type == ArrayBufferView::TypeUint32; | 50 || type == ArrayBufferView::TypeUint32; |
| 51 } | 51 } |
| 52 | 52 |
| 53 } | 53 } |
| 54 | 54 |
| 55 Crypto::Crypto() | 55 Crypto::Crypto() |
| 56 { | 56 { |
| 57 ScriptWrappable::init(this); | 57 ScriptWrappable::init(this); |
| 58 } | 58 } |
| 59 | 59 |
| 60 void Crypto::getRandomValues(ArrayBufferView* array, ExceptionCode& ec) | 60 void Crypto::getRandomValues(ArrayBufferView* array, ExceptionCode& ec) |
| 61 { | 61 { |
| 62 if (!array || !isIntegerArray(array)) { | 62 if (!array || !isIntegerArray(array)) { |
| 63 ec = TYPE_MISMATCH_ERR; | 63 ec = TYPE_MISMATCH_ERR; |
| 64 return; | 64 return; |
| 65 } | 65 } |
| 66 if (array->byteLength() > 65536) { | 66 if (array->byteLength() > 65536) { |
| 67 ec = QUOTA_EXCEEDED_ERR; | 67 ec = QUOTA_EXCEEDED_ERR; |
| 68 return; | 68 return; |
| 69 } | 69 } |
| 70 cryptographicallyRandomValues(array->baseAddress(), array->byteLength()); | 70 cryptographicallyRandomValues(array->baseAddress(), array->byteLength()); |
| 71 } | 71 } |
| 72 | 72 |
| 73 } | 73 } |
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