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/*
* Copyright (C) 2010 Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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.
*/
#ifndef UUID_h
#define UUID_h
#include "platform/PlatformExport.h"
#include "wtf/text/WTFString.h"
namespace blink {
// Creates a UUID that consists of 32 hexadecimal digits and returns its
// canonical form. 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.
// The hexadecimal values "a" through "f" are output as lower case characters.
//
// Note: for security reason, we should always generate version 4 UUID that use
// a scheme relying only on random numbers. This algorithm sets the version
// number as well as two reserved bits. All other bits are set using a random or
// pseudorandom data source. Version 4 UUIDs have the form
// xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx with hexadecimal digits for x and one of
// 8, 9, A, or B for y.
PLATFORM_EXPORT String createCanonicalUUIDString();
// Check that the UUID is a valid UUID. A valid UUID is a string made out of 5
// groups of lower case hexadecimal characters separated by hyphens, in the form
// 8-4-4-4-12.
PLATFORM_EXPORT bool isValidUUID(const String& uuid);
} // namespace blink
#endif
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