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1 /* | 1 /* |
2 * Copyright (C) 2010 Google Inc. All rights reserved. | 2 * Copyright (C) 2010 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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29 */ | 29 */ |
30 | 30 |
31 #ifndef UUID_h | 31 #ifndef UUID_h |
32 #define UUID_h | 32 #define UUID_h |
33 | 33 |
34 #include "platform/PlatformExport.h" | 34 #include "platform/PlatformExport.h" |
35 #include "wtf/text/WTFString.h" | 35 #include "wtf/text/WTFString.h" |
36 | 36 |
37 namespace blink { | 37 namespace blink { |
38 | 38 |
39 // Creates a UUID that consists of 32 hexadecimal digits and returns its canonic
al form. | 39 // Creates a UUID that consists of 32 hexadecimal digits and returns its |
40 // The canonical form is displayed in 5 groups separated by hyphens, in the form
8-4-4-4-12 for a total of 36 characters. | 40 // canonical form. The canonical form is displayed in 5 groups separated by |
| 41 // hyphens, in the form 8-4-4-4-12 for a total of 36 characters. |
41 // The hexadecimal values "a" through "f" are output as lower case characters. | 42 // The hexadecimal values "a" through "f" are output as lower case characters. |
42 // | 43 // |
43 // Note: for security reason, we should always generate version 4 UUID that use
a scheme relying only on random numbers. | 44 // Note: for security reason, we should always generate version 4 UUID that use |
44 // This algorithm sets the version number as well as two reserved bits. All othe
r bits are set using a random or pseudorandom | 45 // a scheme relying only on random numbers. This algorithm sets the version |
45 // data source. Version 4 UUIDs have the form xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxx
xx with hexadecimal digits for x and one of 8, | 46 // number as well as two reserved bits. All other bits are set using a random or |
46 // 9, A, or B for y. | 47 // pseudorandom data source. Version 4 UUIDs have the form |
| 48 // xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx with hexadecimal digits for x and one of |
| 49 // 8, 9, A, or B for y. |
47 PLATFORM_EXPORT String createCanonicalUUIDString(); | 50 PLATFORM_EXPORT String createCanonicalUUIDString(); |
48 | 51 |
49 // Check that the UUID is a valid UUID. A valid UUID is a string made out of 5 g
roups | 52 // Check that the UUID is a valid UUID. A valid UUID is a string made out of 5 |
50 // of lower case hexadecimal characters separated by hyphens, in the form 8-4-4-
4-12. | 53 // groups of lower case hexadecimal characters separated by hyphens, in the form |
| 54 // 8-4-4-4-12. |
51 PLATFORM_EXPORT bool isValidUUID(const String& uuid); | 55 PLATFORM_EXPORT bool isValidUUID(const String& uuid); |
52 | 56 |
53 } // namespace blink | 57 } // namespace blink |
54 | 58 |
55 #endif | 59 #endif |
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