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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 |
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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 "modules/crypto/Crypto.h" | 31 #include "modules/crypto/Crypto.h" |
32 | 32 |
33 #include "core/dom/ExceptionCode.h" | |
34 #include "wtf/ArrayBufferView.h" | |
35 #include "wtf/CryptographicallyRandomNumber.h" | |
36 | |
37 namespace WebCore { | 33 namespace WebCore { |
38 | 34 |
39 namespace { | |
40 | |
41 bool isIntegerArray(ArrayBufferView* array) | |
42 { | |
43 ArrayBufferView::ViewType type = array->getType(); | |
44 return type == ArrayBufferView::TypeInt8 | |
45 || type == ArrayBufferView::TypeUint8 | |
46 || type == ArrayBufferView::TypeUint8Clamped | |
47 || type == ArrayBufferView::TypeInt16 | |
48 || type == ArrayBufferView::TypeUint16 | |
49 || type == ArrayBufferView::TypeInt32 | |
50 || type == ArrayBufferView::TypeUint32; | |
51 } | |
52 | |
53 } | |
54 | |
55 Crypto::Crypto() | 35 Crypto::Crypto() |
56 { | 36 { |
57 ScriptWrappable::init(this); | 37 ScriptWrappable::init(this); |
58 } | 38 } |
59 | 39 |
60 void Crypto::getRandomValues(ArrayBufferView* array, ExceptionCode& ec) | |
61 { | |
62 if (!array || !isIntegerArray(array)) { | |
63 ec = TYPE_MISMATCH_ERR; | |
64 return; | |
65 } | |
66 if (array->byteLength() > 65536) { | |
67 ec = QUOTA_EXCEEDED_ERR; | |
68 return; | |
69 } | |
70 cryptographicallyRandomValues(array->baseAddress(), array->byteLength()); | |
71 } | |
72 | |
73 SubtleCrypto* Crypto::subtle() | 40 SubtleCrypto* Crypto::subtle() |
74 { | 41 { |
75 if (!m_subtleCrypto) | 42 if (!m_subtleCrypto) |
76 m_subtleCrypto = SubtleCrypto::create(); | 43 m_subtleCrypto = SubtleCrypto::create(); |
77 return m_subtleCrypto.get(); | 44 return m_subtleCrypto.get(); |
78 } | 45 } |
79 | 46 |
80 } | 47 } |
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