1/*
2 * Copyright (C) 2011 Google Inc. All rights reserved.
3 * Copyright (C) 2013 Apple Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1.  Redistributions of source code must retain the above copyright
10 *     notice, this list of conditions and the following disclaimer.
11 * 2.  Redistributions in binary form must reproduce the above copyright
12 *     notice, this list of conditions and the following disclaimer in the
13 *     documentation and/or other materials provided with the distribution.
14 * 3.  Neither the name of Google, Inc. ("Google") nor the names of
15 *     its contributors may be used to endorse or promote products derived
16 *     from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY GOOGLE AND ITS CONTRIBUTORS "AS IS" AND ANY
19 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30#ifndef Crypto_h
31#define Crypto_h
32
33#include "ContextDestructionObserver.h"
34#include <wtf/Forward.h>
35#include <wtf/PassRefPtr.h>
36#include <wtf/RefCounted.h>
37#include <wtf/RefPtr.h>
38
39namespace JSC {
40class ArrayBufferView;
41}
42
43namespace WebCore {
44
45typedef int ExceptionCode;
46
47class Document;
48class SubtleCrypto;
49
50class Crypto : public ContextDestructionObserver, public RefCounted<Crypto> {
51public:
52    static PassRefPtr<Crypto> create(Document& document) { return adoptRef(new Crypto(document)); }
53    virtual ~Crypto();
54
55    Document* document() const;
56
57    void getRandomValues(JSC::ArrayBufferView*, ExceptionCode&);
58
59#if ENABLE(SUBTLE_CRYPTO)
60    SubtleCrypto* subtle();
61#endif
62
63private:
64    Crypto(Document&);
65
66#if ENABLE(SUBTLE_CRYPTO)
67    RefPtr<SubtleCrypto> m_subtle;
68#endif
69};
70
71}
72
73#endif
74