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(refactoring) Added a method to generate UUIDs.

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SVN:trunk[4756]
This commit is contained in:
Denis Flaven
2017-06-06 13:59:01 +00:00
parent 636356f479
commit 04e1f32860
1 changed files with 31 additions and 1 deletions
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32
application/utils.inc.php
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@@ -1458,5 +1458,35 @@ class utils
return $oResampledImage;
}
}
}
/**
* Create a 128 bit UUID in the format: {########-####-####-####-############}
*
* Note: this method can be run from the command line as well as from the web server.
* Note2: this method is not cryptographically secure! If you need a cryptographically secure value
* consider using open_ssl or PHP 7 methods.
* @param string $sPrefix
* @return string
*/
static public function CreateUUID($sPrefix = '')
{
$uid = uniqid("", true);
$data = $sPrefix;
$data .= __FILE__;
$data .= mt_rand();
$hash = strtoupper(hash('ripemd128', $uid . md5($data)));
$sUUID = '{' .
substr($hash, 0, 8) .
'-' .
substr($hash, 8, 4) .
'-' .
substr($hash, 12, 4) .
'-' .
substr($hash, 16, 4) .
'-' .
substr($hash, 20, 12) .
'}';
return $sUUID;
}
}