1 /*
2 * Copyright (C) 2013 Google 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 are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "config.h"
32 #include "public/platform/WebCryptoAlgorithm.h"
33
34 #include "public/platform/WebCryptoAlgorithmParams.h"
35 #include "wtf/OwnPtr.h"
36 #include "wtf/ThreadSafeRefCounted.h"
37
38 namespace blink {
39
40 class WebCryptoAlgorithmPrivate : public ThreadSafeRefCounted<WebCryptoAlgorithmPrivate> {
41 public:
WebCryptoAlgorithmPrivate(WebCryptoAlgorithmId id,PassOwnPtr<WebCryptoAlgorithmParams> params)42 WebCryptoAlgorithmPrivate(WebCryptoAlgorithmId id, PassOwnPtr<WebCryptoAlgorithmParams> params)
43 : id(id)
44 , params(params)
45 {
46 }
47
48 WebCryptoAlgorithmId id;
49 OwnPtr<WebCryptoAlgorithmParams> params;
50 };
51
WebCryptoAlgorithm(WebCryptoAlgorithmId id,PassOwnPtr<WebCryptoAlgorithmParams> params)52 WebCryptoAlgorithm::WebCryptoAlgorithm(WebCryptoAlgorithmId id, PassOwnPtr<WebCryptoAlgorithmParams> params)
53 : m_private(adoptRef(new WebCryptoAlgorithmPrivate(id, params)))
54 {
55 }
56
createNull()57 WebCryptoAlgorithm WebCryptoAlgorithm::createNull()
58 {
59 return WebCryptoAlgorithm();
60 }
61
adoptParamsAndCreate(WebCryptoAlgorithmId id,WebCryptoAlgorithmParams * params)62 WebCryptoAlgorithm WebCryptoAlgorithm::adoptParamsAndCreate(WebCryptoAlgorithmId id, WebCryptoAlgorithmParams* params)
63 {
64 return WebCryptoAlgorithm(id, adoptPtr(params));
65 }
66
isNull() const67 bool WebCryptoAlgorithm::isNull() const
68 {
69 return m_private.isNull();
70 }
71
id() const72 WebCryptoAlgorithmId WebCryptoAlgorithm::id() const
73 {
74 ASSERT(!isNull());
75 return m_private->id;
76 }
77
paramsType() const78 WebCryptoAlgorithmParamsType WebCryptoAlgorithm::paramsType() const
79 {
80 ASSERT(!isNull());
81 if (!m_private->params)
82 return WebCryptoAlgorithmParamsTypeNone;
83 return m_private->params->type();
84 }
85
aesCbcParams() const86 const WebCryptoAesCbcParams* WebCryptoAlgorithm::aesCbcParams() const
87 {
88 ASSERT(!isNull());
89 if (paramsType() == WebCryptoAlgorithmParamsTypeAesCbcParams)
90 return static_cast<WebCryptoAesCbcParams*>(m_private->params.get());
91 return 0;
92 }
93
aesCtrParams() const94 const WebCryptoAesCtrParams* WebCryptoAlgorithm::aesCtrParams() const
95 {
96 ASSERT(!isNull());
97 if (paramsType() == WebCryptoAlgorithmParamsTypeAesCtrParams)
98 return static_cast<WebCryptoAesCtrParams*>(m_private->params.get());
99 return 0;
100 }
101
aesKeyGenParams() const102 const WebCryptoAesKeyGenParams* WebCryptoAlgorithm::aesKeyGenParams() const
103 {
104 ASSERT(!isNull());
105 if (paramsType() == WebCryptoAlgorithmParamsTypeAesKeyGenParams)
106 return static_cast<WebCryptoAesKeyGenParams*>(m_private->params.get());
107 return 0;
108 }
109
hmacParams() const110 const WebCryptoHmacParams* WebCryptoAlgorithm::hmacParams() const
111 {
112 ASSERT(!isNull());
113 if (paramsType() == WebCryptoAlgorithmParamsTypeHmacParams)
114 return static_cast<WebCryptoHmacParams*>(m_private->params.get());
115 return 0;
116 }
117
hmacKeyParams() const118 const WebCryptoHmacKeyParams* WebCryptoAlgorithm::hmacKeyParams() const
119 {
120 ASSERT(!isNull());
121 if (paramsType() == WebCryptoAlgorithmParamsTypeHmacKeyParams)
122 return static_cast<WebCryptoHmacKeyParams*>(m_private->params.get());
123 return 0;
124 }
125
rsaSsaParams() const126 const WebCryptoRsaSsaParams* WebCryptoAlgorithm::rsaSsaParams() const
127 {
128 ASSERT(!isNull());
129 if (paramsType() == WebCryptoAlgorithmParamsTypeRsaSsaParams)
130 return static_cast<WebCryptoRsaSsaParams*>(m_private->params.get());
131 return 0;
132 }
133
rsaKeyGenParams() const134 const WebCryptoRsaKeyGenParams* WebCryptoAlgorithm::rsaKeyGenParams() const
135 {
136 ASSERT(!isNull());
137 if (paramsType() == WebCryptoAlgorithmParamsTypeRsaKeyGenParams)
138 return static_cast<WebCryptoRsaKeyGenParams*>(m_private->params.get());
139 return 0;
140 }
141
aesGcmParams() const142 const WebCryptoAesGcmParams* WebCryptoAlgorithm::aesGcmParams() const
143 {
144 ASSERT(!isNull());
145 if (paramsType() == WebCryptoAlgorithmParamsTypeAesGcmParams)
146 return static_cast<WebCryptoAesGcmParams*>(m_private->params.get());
147 return 0;
148 }
149
rsaOaepParams() const150 const WebCryptoRsaOaepParams* WebCryptoAlgorithm::rsaOaepParams() const
151 {
152 ASSERT(!isNull());
153 if (paramsType() == WebCryptoAlgorithmParamsTypeRsaOaepParams)
154 return static_cast<WebCryptoRsaOaepParams*>(m_private->params.get());
155 return 0;
156 }
157
assign(const WebCryptoAlgorithm & other)158 void WebCryptoAlgorithm::assign(const WebCryptoAlgorithm& other)
159 {
160 m_private = other.m_private;
161 }
162
reset()163 void WebCryptoAlgorithm::reset()
164 {
165 m_private.reset();
166 }
167
168 } // namespace blink
169