third_party/WebKit/Source/platform/exported/WebCryptoKey.cpp

   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
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   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
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  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,
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  28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #include "config.h"
  32 #include "public/platform/WebCryptoKey.h"
  33
  34 #include "public/platform/WebCryptoAlgorithm.h"
  35 #include "public/platform/WebCryptoAlgorithmParams.h"
  36 #include "public/platform/WebCryptoKeyAlgorithm.h"
  37 #include "wtf/OwnPtr.h"
  38 #include "wtf/ThreadSafeRefCounted.h"
  39
  40 namespace blink {
  41
  42 class WebCryptoKeyPrivate : public ThreadSafeRefCounted<WebCryptoKeyPrivate> {
  43 public:
  44     WebCryptoKeyPrivate(PassOwnPtr<WebCryptoKeyHandle> handle, WebCryptoKeyType type, bool extractable, const WebCryptoKeyAlgorithm& algorithm, WebCryptoKeyUsageMask usages)
  45         : handle(handle)
  46         , type(type)
  47         , extractable(extractable)
  48         , algorithm(algorithm)
  49         , usages(usages)
  50     {
  51         ASSERT(!algorithm.isNull());
  52     }
  53
  54     const OwnPtr<WebCryptoKeyHandle> handle;
  55     const WebCryptoKeyType type;
  56     const bool extractable;
  57     const WebCryptoKeyAlgorithm algorithm;
  58     const WebCryptoKeyUsageMask usages;
  59 };
  60
  61 WebCryptoKey WebCryptoKey::create(WebCryptoKeyHandle* handle, WebCryptoKeyType type, bool extractable, const WebCryptoKeyAlgorithm& algorithm, WebCryptoKeyUsageMask usages)
  62 {
  63     WebCryptoKey key;
  64     key.m_private = adoptRef(new WebCryptoKeyPrivate(adoptPtr(handle), type, extractable, algorithm, usages));
  65     return key;
  66 }
  67
  68 WebCryptoKey WebCryptoKey::createNull()
  69 {
  70     return WebCryptoKey();
  71 }
  72
  73 WebCryptoKeyHandle* WebCryptoKey::handle() const
  74 {
  75     ASSERT(!isNull());
  76     return m_private->handle.get();
  77 }
  78
  79 WebCryptoKeyType WebCryptoKey::type() const
  80 {
  81     ASSERT(!isNull());
  82     return m_private->type;
  83 }
  84
  85 bool WebCryptoKey::extractable() const
  86 {
  87     ASSERT(!isNull());
  88     return m_private->extractable;
  89 }
  90
  91 const WebCryptoKeyAlgorithm& WebCryptoKey::algorithm() const
  92 {
  93     ASSERT(!isNull());
  94     return m_private->algorithm;
  95 }
  96
  97 WebCryptoKeyUsageMask WebCryptoKey::usages() const
  98 {
  99     ASSERT(!isNull());
 100     return m_private->usages;
 101 }
 102
 103 bool WebCryptoKey::isNull() const
 104 {
 105     return m_private.isNull();
 106 }
 107
 108 bool WebCryptoKey::keyUsageAllows(const blink::WebCryptoKeyUsage usage) const
 109 {
 110     return ((m_private->usages & usage) != 0);
 111 }
 112
 113 void WebCryptoKey::assign(const WebCryptoKey& other)
 114 {
 115     m_private = other.m_private;
 116 }
 117
 118 void WebCryptoKey::reset()
 119 {
 120     m_private.reset();
 121 }
 122
 123 } // namespace blink