1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
/*
* Copyright (C) 2013 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "CryptoAlgorithmRegistry.h"
#if ENABLE(WEB_CRYPTO)
#include "CryptoAlgorithm.h"
#include <wtf/NeverDestroyed.h>
namespace WebCore {
CryptoAlgorithmRegistry& CryptoAlgorithmRegistry::singleton()
{
static LazyNeverDestroyed<CryptoAlgorithmRegistry> registry;
static std::once_flag onceKey;
std::call_once(onceKey, [&] {
registry.construct();
});
return registry;
}
CryptoAlgorithmRegistry::CryptoAlgorithmRegistry()
{
platformRegisterAlgorithms();
}
std::optional<CryptoAlgorithmIdentifier> CryptoAlgorithmRegistry::identifier(const String& name)
{
if (name.isEmpty())
return std::nullopt;
Locker locker { m_lock };
// FIXME: How is it helpful to call isolatedCopy on the argument to find?
auto identifier = m_identifiers.find(name.isolatedCopy());
if (identifier == m_identifiers.end())
return std::nullopt;
return identifier->value;
}
String CryptoAlgorithmRegistry::name(CryptoAlgorithmIdentifier identifier)
{
Locker locker { m_lock };
auto contructor = m_constructors.find(static_cast<unsigned>(identifier));
if (contructor == m_constructors.end())
return { };
return contructor->value.first.isolatedCopy();
}
RefPtr<CryptoAlgorithm> CryptoAlgorithmRegistry::create(CryptoAlgorithmIdentifier identifier)
{
Locker locker { m_lock };
auto contructor = m_constructors.find(static_cast<unsigned>(identifier));
if (contructor == m_constructors.end())
return nullptr;
return contructor->value.second();
}
void CryptoAlgorithmRegistry::registerAlgorithm(const String& name, CryptoAlgorithmIdentifier identifier, CryptoAlgorithmConstructor constructor)
{
Locker locker { m_lock };
ASSERT(!m_identifiers.contains(name));
ASSERT(!m_constructors.contains(static_cast<unsigned>(identifier)));
m_identifiers.add(name, identifier);
m_constructors.add(static_cast<unsigned>(identifier), std::make_pair(name, constructor));
}
} // namespace WebCore
#endif // ENABLE(WEB_CRYPTO)
|
