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<?php
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<?php
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/*
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/*
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 * UUID utils for PHP
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 * UUID utils for PHP
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 * Copyright 2011 - 2023 Daniel Marschall, ViaThinkSoft
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 * Copyright 2011 - 2023 Daniel Marschall, ViaThinkSoft
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 * Version 2023-04-29
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 * Version 2023-05-06
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 *
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 *
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 * Licensed under the Apache License, Version 2.0 (the "License");
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 * Licensed under the Apache License, Version 2.0 (the "License");
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 * you may not use this file except in compliance with the License.
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 * you may not use this file except in compliance with the License.
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 * You may obtain a copy of the License at
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 * You may obtain a copy of the License at
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 *
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 *
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define('UUID_NAMEBASED_NS_DNS',     '6ba7b810-9dad-11d1-80b4-00c04fd430c8');
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define('UUID_NAMEBASED_NS_DNS',     '6ba7b810-9dad-11d1-80b4-00c04fd430c8');
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define('UUID_NAMEBASED_NS_URL',     '6ba7b811-9dad-11d1-80b4-00c04fd430c8');
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define('UUID_NAMEBASED_NS_URL',     '6ba7b811-9dad-11d1-80b4-00c04fd430c8');
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define('UUID_NAMEBASED_NS_OID',     '6ba7b812-9dad-11d1-80b4-00c04fd430c8');
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define('UUID_NAMEBASED_NS_OID',     '6ba7b812-9dad-11d1-80b4-00c04fd430c8');
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define('UUID_NAMEBASED_NS_X500_DN', '6ba7b814-9dad-11d1-80b4-00c04fd430c8');
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define('UUID_NAMEBASED_NS_X500_DN', '6ba7b814-9dad-11d1-80b4-00c04fd430c8');
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function _random_int($min, $max) {
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        // This function tries a CSRNG and falls back to a RNG if no CSRNG is available
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        try {
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                return random_int($min, $max);
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        } catch (Exception $e) {
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                return mt_rand($min, $max);
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        }
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}
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function uuid_valid($uuid) {
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function uuid_valid($uuid) {
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        $uuid = str_replace(array('-', '{', '}'), '', $uuid);
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        $uuid = str_replace(array('-', '{', '}'), '', $uuid);
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        $uuid = strtoupper($uuid);
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        $uuid = strtoupper($uuid);
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        #$uuid = trim($uuid);
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        #$uuid = trim($uuid);
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        /*
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        /*
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         * We don't support saved state information and generate
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         * We don't support saved state information and generate
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         * a random clock sequence each time.
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         * a random clock sequence each time.
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         */
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         */
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        $uuid['clock_seq_hi'] = 0x80 | mt_rand(0, 64);
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        $uuid['clock_seq_hi'] = 0x80 | _random_int(0, 64);
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        $uuid['clock_seq_low'] = mt_rand(0, 255);
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        $uuid['clock_seq_low'] = _random_int(0, 255);
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        /*
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        /*
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         * Node should be set to the 48-bit IEEE node identifier
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         * Node should be set to the 48-bit IEEE node identifier
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         */
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         */
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        $mac = get_mac_address();
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        $mac = get_mac_address();
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        }
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        }
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        # Make the UUID by ourselves
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        # Make the UUID by ourselves
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        # Source: http://rogerstringer.com/2013/11/15/generate-uuids-php
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        # Source: http://rogerstringer.com/2013/11/15/generate-uuids-php
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        return sprintf( '%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
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        return sprintf( '%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
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                mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff ),
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                _random_int( 0, 0xffff ), _random_int( 0, 0xffff ),
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                mt_rand( 0, 0xffff ),
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                _random_int( 0, 0xffff ),
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                mt_rand( 0, 0x0fff ) | 0x4000,
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                _random_int( 0, 0x0fff ) | 0x4000,
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                mt_rand( 0, 0x3fff ) | 0x8000,
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                _random_int( 0, 0x3fff ) | 0x8000,
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                mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff )
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                _random_int( 0, 0xffff ), _random_int( 0, 0xffff ), _random_int( 0, 0xffff )
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        );
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        );
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}
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}
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// Version 5 (SHA1 name based) UUID
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// Version 5 (SHA1 name based) UUID
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function gen_uuid_sha1_namebased($namespace_uuid, $name) {
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function gen_uuid_sha1_namebased($namespace_uuid, $name) {