1/*
2 * Copyright (C) 2017 Apple 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
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#if ENABLE(ENCRYPTED_MEDIA)
29
30#include <wtf/Function.h>
31#include <wtf/HashMap.h>
32#include <wtf/Optional.h>
33#include <wtf/Ref.h>
34#include <wtf/RefPtr.h>
35#include <wtf/Vector.h>
36#include <wtf/text/AtomicString.h>
37#include <wtf/text/AtomicStringHash.h>
38
39namespace WebCore {
40
41class SharedBuffer;
42
43class InitDataRegistry {
44public:
45 WEBCORE_EXPORT static InitDataRegistry& shared();
46 friend class NeverDestroyed<InitDataRegistry>;
47
48 RefPtr<SharedBuffer> sanitizeInitData(const AtomicString& initDataType, const SharedBuffer&);
49 WEBCORE_EXPORT Optional<Vector<Ref<SharedBuffer>>> extractKeyIDs(const AtomicString& initDataType, const SharedBuffer&);
50
51 struct InitDataTypeCallbacks {
52 using SanitizeInitDataCallback = Function<RefPtr<SharedBuffer>(const SharedBuffer&)>;
53 using ExtractKeyIDsCallback = Function<Optional<Vector<Ref<SharedBuffer>>>(const SharedBuffer&)>;
54
55 SanitizeInitDataCallback sanitizeInitData;
56 ExtractKeyIDsCallback extractKeyIDs;
57 };
58 void registerInitDataType(const AtomicString& initDataType, InitDataTypeCallbacks&&);
59
60private:
61 InitDataRegistry();
62 ~InitDataRegistry();
63
64 HashMap<AtomicString, InitDataTypeCallbacks> m_types;
65};
66
67}
68
69#endif // ENABLE(ENCRYPTED_MEDIA)
70