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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/crypto/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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