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 #ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_CRYPTO_NORMALIZE_ALGORITHM_H_
32 #define THIRD_PARTY_BLINK_RENDERER_MODULES_CRYPTO_NORMALIZE_ALGORITHM_H_
33 
34 #include "third_party/blink/public/platform/web_crypto.h"
35 #include "third_party/blink/public/platform/web_crypto_algorithm.h"
36 #include "third_party/blink/public/platform/web_string.h"
37 #include "third_party/blink/renderer/bindings/modules/v8/object_or_string.h"
38 #include "third_party/blink/renderer/modules/modules_export.h"
39 #include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
40 #include "third_party/blink/renderer/platform/wtf/assertions.h"
41 #include "third_party/blink/renderer/platform/wtf/forward.h"
42 #include "v8/include/v8.h"
43 
44 namespace blink {
45 
46 using AlgorithmIdentifier = ObjectOrString;
47 
48 // Converts a javascript AlgorithmIdentifier to a WebCryptoAlgorithm object.
49 //
50 // This corresponds with "normalizing" [1] the algorithm, and then validating
51 // the expected parameters for the algorithm/operation combination.
52 //
53 // On success returns true and sets the WebCryptoAlgorithm.
54 //
55 // On failure NormalizeAlgorithm returns false and throws an exception in the
56 // ExceptionState.
57 //
58 // [1]
59 // https://w3c.github.io/webcrypto/#algorithm-normalization-normalize-an-algorithm
60 MODULES_EXPORT WARN_UNUSED_RESULT bool NormalizeAlgorithm(
61     v8::Isolate*,
62     const AlgorithmIdentifier&,
63     WebCryptoOperation,
64     WebCryptoAlgorithm&,
65     ExceptionState&);
66 
67 }  // namespace blink
68 
69 #endif
70