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| Rev | Author | Line No. | Line |
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| 2 | daniel-mar | 1 | <?php |
| 2 | |||
| 3 | /* |
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| 4 | * UUID utils for PHP |
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| 15 | daniel-mar | 5 | * Copyright 2011 - 2023 Daniel Marschall, ViaThinkSoft |
| 34 | daniel-mar | 6 | * Version 2023-07-12 |
| 2 | daniel-mar | 7 | * |
| 8 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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| 9 | * you may not use this file except in compliance with the License. |
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| 10 | * You may obtain a copy of the License at |
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| 11 | * |
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| 12 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 13 | * |
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| 14 | * Unless required by applicable law or agreed to in writing, software |
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| 15 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 16 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 17 | * See the License for the specific language governing permissions and |
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| 18 | * limitations under the License. |
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| 19 | */ |
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| 20 | |||
| 21 | # This library requires either the GMP extension (or BCMath if gmp_supplement.inc.php is present) |
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| 22 | |||
| 23 | if (file_exists(__DIR__ . '/mac_utils.inc.phps')) include_once __DIR__ . '/mac_utils.inc.phps'; // optionally used for uuid_info() |
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| 24 | if (file_exists(__DIR__ . '/gmp_supplement.inc.php')) include_once __DIR__ . '/gmp_supplement.inc.php'; |
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| 25 | |||
| 31 | daniel-mar | 26 | const UUID_NAMEBASED_NS_DNS = '6ba7b810-9dad-11d1-80b4-00c04fd430c8'; // FQDN |
| 27 | const UUID_NAMEBASED_NS_URL = '6ba7b811-9dad-11d1-80b4-00c04fd430c8'; |
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| 28 | const UUID_NAMEBASED_NS_OID = '6ba7b812-9dad-11d1-80b4-00c04fd430c8'; |
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| 29 | const UUID_NAMEBASED_NS_X500_DN = '6ba7b814-9dad-11d1-80b4-00c04fd430c8'; // DER according to https://github.com/cjsv/uuid/blob/master/Doc ?! |
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| 2 | daniel-mar | 30 | |
| 24 | daniel-mar | 31 | function _random_int($min, $max) { |
| 32 | // This function tries a CSRNG and falls back to a RNG if no CSRNG is available |
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| 33 | try { |
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| 34 | return random_int($min, $max); |
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| 35 | } catch (Exception $e) { |
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| 36 | return mt_rand($min, $max); |
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| 37 | } |
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| 38 | } |
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| 39 | |||
| 2 | daniel-mar | 40 | function uuid_valid($uuid) { |
| 41 | $uuid = str_replace(array('-', '{', '}'), '', $uuid); |
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| 42 | $uuid = strtoupper($uuid); |
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| 43 | #$uuid = trim($uuid); |
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| 44 | |||
| 45 | if (strlen($uuid) != 32) return false; |
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| 46 | |||
| 29 | daniel-mar | 47 | $uuid = preg_replace('@[0-9A-F]@i', '', $uuid); |
| 2 | daniel-mar | 48 | |
| 49 | return ($uuid == ''); |
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| 50 | } |
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| 51 | |||
| 28 | daniel-mar | 52 | function uuid_info($uuid, $echo=true) { |
| 2 | daniel-mar | 53 | if (!uuid_valid($uuid)) return false; |
| 54 | |||
| 28 | daniel-mar | 55 | if (!$echo) ob_start(); |
| 56 | |||
| 2 | daniel-mar | 57 | #$uuid = trim($uuid); |
| 58 | # $uuid = str_replace(array('-', '{', '}'), '', $uuid); |
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| 29 | daniel-mar | 59 | $uuid = strtolower($uuid); |
| 60 | $uuid = preg_replace('@[^0-9A-F]@i', '', $uuid); |
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| 2 | daniel-mar | 61 | |
| 62 | $x = hexdec(substr($uuid, 16, 1)); |
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| 28 | daniel-mar | 63 | if ($x >= 14 /* 0b1110 */) $variant = 3; |
| 64 | else if ($x >= 12 /* 0b110_ */) $variant = 2; |
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| 65 | else if ($x >= 8 /* 0b10__ */) $variant = 1; |
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| 66 | else if ($x >= 0 /* 0b0___ */) $variant = 0; |
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| 2 | daniel-mar | 67 | else $variant = -1; // should not happen |
| 68 | |||
| 35 | daniel-mar | 69 | if ($uuid == '00000000000000000000000000000000') { |
| 70 | echo sprintf("%-32s %s\n", "Special Use:", "Nil UUID"); |
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| 71 | echo "\n"; |
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| 72 | } |
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| 73 | else if ($uuid == 'ffffffffffffffffffffffffffffffff') { |
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| 74 | echo sprintf("%-32s %s\n", "Special Use:", "Max UUID"); |
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| 75 | echo "\n"; |
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| 76 | } |
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| 77 | |||
| 2 | daniel-mar | 78 | switch ($variant) { |
| 79 | case 0: |
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| 33 | daniel-mar | 80 | echo sprintf("%-32s %s\n", "Variant:", "[0b0__] Network Computing System (NCS)"); |
| 2 | daniel-mar | 81 | |
| 82 | /* |
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| 83 | * Internal structure of variant #0 UUIDs |
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| 84 | * |
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| 85 | * The first 6 octets are the number of 4 usec units of time that have |
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| 86 | * passed since 1/1/80 0000 GMT. The next 2 octets are reserved for |
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| 87 | * future use. The next octet is an address family. The next 7 octets |
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| 88 | * are a host ID in the form allowed by the specified address family. |
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| 89 | * |
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| 90 | * Note that while the family field (octet 8) was originally conceived |
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| 91 | * of as being able to hold values in the range [0..255], only [0..13] |
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| 92 | * were ever used. Thus, the 2 MSB of this field are always 0 and are |
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| 93 | * used to distinguish old and current UUID forms. |
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| 94 | */ |
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| 95 | |||
| 28 | daniel-mar | 96 | /* |
| 97 | Variant 0 UUID |
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| 98 | - 32 bit High Time |
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| 99 | - 16 bit Low Time |
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| 100 | - 16 bit Reserved |
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| 29 | daniel-mar | 101 | - 1 bit Variant (fix 0b0) |
| 28 | daniel-mar | 102 | - 7 bit Family |
| 103 | - 56 bit Node |
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| 104 | */ |
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| 105 | |||
| 2 | daniel-mar | 106 | // Example of an UUID: 333a2276-0000-0000-0d00-00809c000000 |
| 107 | |||
| 35 | daniel-mar | 108 | // TODO: also show legacy format, e.g. 458487b55160.02.c0.64.02.03.00.00.00 |
| 109 | |||
| 28 | daniel-mar | 110 | # see also some notes at See https://github.com/cjsv/uuid/blob/master/Doc |
| 2 | daniel-mar | 111 | |
| 29 | daniel-mar | 112 | /* |
| 113 | NOTE: A generator is not possible, because there are no timestamps left! |
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| 114 | The last possible timestamp was: |
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| 30 | daniel-mar | 115 | [0xFFFFFFFFFFFF] 2015-09-05 05:58:26'210655 GMT |
| 29 | daniel-mar | 116 | That is in the following UUID: |
| 117 | ffffffff-ffff-0000-027f-000001000000 |
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| 118 | Current timestamp generator: |
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| 119 | echo dechex(round((microtime(true)+315532800)*250000)); |
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| 120 | */ |
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| 27 | daniel-mar | 121 | |
| 2 | daniel-mar | 122 | # Timestamp: Count of 4us intervals since 01 Jan 1980 00:00:00 GMT |
| 123 | # 1/0,000004 = 250000 |
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| 124 | # Seconds between 1970 and 1980 : 315532800 |
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| 125 | # 250000*315532800=78883200000000 |
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| 126 | $timestamp = substr($uuid, 0, 12); |
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| 127 | $ts = gmp_init($timestamp, 16); |
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| 30 | daniel-mar | 128 | $ts = gmp_add($ts, gmp_init("78883200000000", 10)); |
| 129 | $ms = gmp_mod($ts, gmp_init("250000", 10)); |
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| 130 | $ts = gmp_div($ts, gmp_init("250000", 10)); |
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| 131 | $ts = gmp_strval($ts, 10); |
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| 132 | $ms = gmp_strval($ms, 10); |
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| 133 | $ts = gmdate('Y-m-d H:i:s', intval($ts))."'".str_pad($ms, 6/*us*/, '0', STR_PAD_LEFT).' GMT'; |
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| 25 | daniel-mar | 134 | echo sprintf("%-32s %s\n", "Timestamp:", "[0x$timestamp] $ts"); |
| 2 | daniel-mar | 135 | |
| 136 | $reserved = substr($uuid, 12, 4); |
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| 27 | daniel-mar | 137 | echo sprintf("%-32s %s\n", "Reserved:", "[0x$reserved]"); |
| 2 | daniel-mar | 138 | |
| 139 | $family_hex = substr($uuid, 16, 2); |
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| 140 | $family_dec = hexdec($family_hex); |
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| 28 | daniel-mar | 141 | $nodeid_hex = substr($uuid, 18, 14); |
| 142 | $nodeid_dec = hexdec($nodeid_hex); |
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| 2 | daniel-mar | 143 | if ($family_dec == 2) { |
| 29 | daniel-mar | 144 | $family_name = 'IP'; |
| 28 | daniel-mar | 145 | // https://www.ibm.com/docs/en/aix/7.1?topic=u-uuid-gen-command-ncs (AIX 7.1) shows the following example output for /etc/ncs/uuid_gen -P |
| 146 | // := [ |
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| 147 | // time_high := 16#458487df, |
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| 148 | // time_low := 16#9fb2, |
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| 149 | // reserved := 16#000, |
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| 150 | // family := chr(16#02), |
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| 151 | // host := [chr(16#c0), chr(16#64), chr(16#02), chr(16#03), |
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| 152 | // chr(16#00), chr(16#00), chr(16#00)] |
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| 153 | // ] |
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| 154 | // This means that the IP address is 32 bits hex, and 32 bits are unused |
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| 155 | $nodeid_desc = hexdec(substr($nodeid_hex,0,2)).'.'. |
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| 156 | hexdec(substr($nodeid_hex,2,2)).'.'. |
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| 157 | hexdec(substr($nodeid_hex,4,2)).'.'. |
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| 158 | hexdec(substr($nodeid_hex,6,2)); |
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| 159 | $rest = substr($nodeid_hex,8,6); |
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| 160 | if ($rest != '000000') $nodeid_desc .= " + unexpected rest 0x$rest"; |
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| 2 | daniel-mar | 161 | } else if ($family_dec == 13) { |
| 29 | daniel-mar | 162 | $family_name = 'DDS (Data Link)'; |
| 28 | daniel-mar | 163 | // https://www.ibm.com/docs/en/aix/7.1?topic=u-uuid-gen-command-ncs (AIX 7.1) shows the following example output for /etc/ncs/uuid_gen -C |
| 164 | // = { 0x34dc23af, |
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| 165 | // 0xf000, |
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| 166 | // 0x0000, |
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| 167 | // 0x0d, |
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| 168 | // {0x00, 0x00, 0x7c, 0x5f, 0x00, 0x00, 0x00} }; |
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| 169 | // https://github.com/cjsv/uuid/blob/master/Doc writes: |
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| 170 | // "Family 13 (dds) looks like node is 00 | nnnnnn 000000." |
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| 171 | |||
| 172 | $nodeid_desc = ''; |
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| 173 | |||
| 174 | $start = substr($nodeid_hex,0,2); |
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| 175 | if ($start != '00') $nodeid_desc .= "unexpected start 0x$start + "; |
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| 176 | |||
| 177 | $nodeid_desc .= ($nodeid_dec >> 24) & 0xFFFFFF; |
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| 178 | |||
| 179 | $rest = substr($nodeid_hex,8,6); |
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| 180 | if ($rest != '000000') $nodeid_desc .= " + unexpected rest 0x$rest"; |
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| 2 | daniel-mar | 181 | } else { |
| 29 | daniel-mar | 182 | $family_name = "Unknown (Family $family_dec)"; # There are probably no more families |
| 183 | $nodeid_desc = "Unknown"; |
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| 2 | daniel-mar | 184 | } |
| 29 | daniel-mar | 185 | echo sprintf("%-32s %s\n", "Family:", "[0x$family_hex] $family_name"); |
| 2 | daniel-mar | 186 | |
| 28 | daniel-mar | 187 | echo sprintf("%-32s %s\n", "Node ID:", "[0x$nodeid_hex] $nodeid_desc"); |
| 2 | daniel-mar | 188 | |
| 189 | break; |
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| 190 | case 1: |
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| 35 | daniel-mar | 191 | // TODO: Show byte order: 00112233-4455-6677-8899-aabbccddeeff => 00 11 22 33 44 55 66 77 88 99 aa bb cc dd ee ff |
| 192 | |||
| 30 | daniel-mar | 193 | $version = hexdec(substr($uuid, 12, 1)); |
| 2 | daniel-mar | 194 | |
| 30 | daniel-mar | 195 | if ($version <= 2) { |
| 196 | echo sprintf("%-32s %s\n", "Variant:", "[0b10_] RFC 4122 (Leach-Mealling-Salz) / DCE 1.1"); |
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| 197 | } else if (($version >= 3) && ($version <= 5)) { |
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| 198 | echo sprintf("%-32s %s\n", "Variant:", "[0b10_] RFC 4122 (Leach-Mealling-Salz)"); |
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| 199 | } else if (($version >= 6) && ($version <= 8)) { |
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| 200 | echo sprintf("%-32s %s\n", "Variant:", "[0b10_] RFC 4122bis (Leach-Mealling-Peabody-Davis)"); |
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| 201 | } else { |
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| 202 | echo sprintf("%-32s %s\n", "Variant:", "[0b10_] RFC 4122 ?"); |
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| 203 | } |
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| 204 | |||
| 2 | daniel-mar | 205 | switch ($version) { |
| 29 | daniel-mar | 206 | case 6: |
| 207 | /* |
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| 208 | Variant 1, Version 6 UUID |
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| 209 | - 48 bit High Time |
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| 210 | - 4 bit Version (fix 0x6) |
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| 211 | - 12 bit Low Time |
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| 212 | - 2 bit Variant (fix 0b10) |
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| 35 | daniel-mar | 213 | - 6 bit Clock Sequence High |
| 214 | - 8 bit Clock Sequence Low |
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| 29 | daniel-mar | 215 | - 48 bit MAC Address |
| 216 | */ |
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| 31 | daniel-mar | 217 | echo sprintf("%-32s %s\n", "Version:", "[6] Reordered Time"); |
| 29 | daniel-mar | 218 | $uuid = substr($uuid, 0, 8).'-'. |
| 219 | substr($uuid, 8, 4).'-'. |
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| 220 | substr($uuid, 12, 4).'-'. |
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| 221 | substr($uuid, 16, 4).'-'. |
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| 222 | substr($uuid, 20, 12); |
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| 223 | $uuid = uuid6_to_uuid1($uuid); |
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| 224 | $uuid = str_replace('-', '', $uuid); |
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| 225 | |||
| 226 | /* fallthrough */ |
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| 2 | daniel-mar | 227 | case 1: |
| 27 | daniel-mar | 228 | /* |
| 229 | Variant 1, Version 1 UUID |
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| 230 | - 32 bit Low Time |
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| 231 | - 16 bit Mid Time |
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| 232 | - 4 bit Version (fix 0x1) |
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| 233 | - 12 bit High Time |
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| 28 | daniel-mar | 234 | - 2 bit Variant (fix 0b10) |
| 35 | daniel-mar | 235 | - 6 bit Clock Sequence High |
| 236 | - 8 bit Clock Sequence Low |
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| 27 | daniel-mar | 237 | - 48 bit MAC Address |
| 238 | */ |
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| 239 | |||
| 31 | daniel-mar | 240 | if ($version == 1) echo sprintf("%-32s %s\n", "Version:", "[1] Time-based with unique host identifier"); |
| 2 | daniel-mar | 241 | |
| 242 | # Timestamp: Count of 100ns intervals since 15 Oct 1582 00:00:00 |
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| 243 | # 1/0,0000001 = 10000000 |
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| 244 | $timestamp = substr($uuid, 13, 3).substr($uuid, 8, 4).substr($uuid, 0, 8); |
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| 245 | $ts = gmp_init($timestamp, 16); |
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| 30 | daniel-mar | 246 | $ts = gmp_sub($ts, gmp_init("122192928000000000", 10)); |
| 247 | $ms = gmp_mod($ts, gmp_init("10000000", 10)); |
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| 248 | $ts = gmp_div($ts, gmp_init("10000000", 10)); |
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| 249 | $ts = gmp_strval($ts, 10); |
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| 250 | $ms = gmp_strval($ms, 10); |
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| 251 | $ts = gmdate('Y-m-d H:i:s', intval($ts))."'".str_pad($ms, 7/*0.1us*/, '0', STR_PAD_LEFT).' GMT'; |
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| 25 | daniel-mar | 252 | echo sprintf("%-32s %s\n", "Timestamp:", "[0x$timestamp] $ts"); |
| 2 | daniel-mar | 253 | |
| 254 | $x = hexdec(substr($uuid, 16, 4)); |
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| 255 | $dec = $x & 0x3FFF; // The highest 2 bits are used by "variant" (10x) |
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| 256 | $hex = substr($uuid, 16, 4); |
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| 25 | daniel-mar | 257 | echo sprintf("%-32s %s\n", "Clock ID:", "[0x$hex] $dec"); |
| 2 | daniel-mar | 258 | |
| 259 | $x = substr($uuid, 20, 12); |
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| 260 | $nodeid = ''; |
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| 261 | for ($i=0; $i<6; $i++) { |
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| 262 | $nodeid .= substr($x, $i*2, 2); |
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| 25 | daniel-mar | 263 | if ($i != 5) $nodeid .= '-'; |
| 2 | daniel-mar | 264 | } |
| 30 | daniel-mar | 265 | $nodeid = strtoupper($nodeid); |
| 27 | daniel-mar | 266 | echo sprintf("%-32s %s\n", "Node ID:", "[0x$x] $nodeid"); |
| 2 | daniel-mar | 267 | |
| 268 | if (function_exists('decode_mac')) { |
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| 25 | daniel-mar | 269 | echo "\nIn case that this Node ID is a MAC address, here is the interpretation of that MAC address:\n\n"; |
| 29 | daniel-mar | 270 | decode_mac(strtoupper($nodeid)); |
| 2 | daniel-mar | 271 | } |
| 272 | |||
| 273 | break; |
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| 274 | case 2: |
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| 27 | daniel-mar | 275 | /* |
| 276 | Variant 1, Version 2 UUID |
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| 277 | - 32 bit Local Domain Number |
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| 278 | - 16 bit Mid Time |
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| 279 | - 4 bit Version (fix 0x2) |
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| 280 | - 12 bit High Time |
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| 28 | daniel-mar | 281 | - 2 bit Variant (fix 0b10) |
| 35 | daniel-mar | 282 | - 6 bit Clock Sequence |
| 28 | daniel-mar | 283 | - 8 bit Local Domain |
| 27 | daniel-mar | 284 | - 48 bit MAC Address |
| 285 | */ |
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| 286 | |||
| 28 | daniel-mar | 287 | // see also https://unicorn-utterances.com/posts/what-happened-to-uuid-v2 |
| 288 | |||
| 25 | daniel-mar | 289 | echo sprintf("%-32s %s\n", "Version:", "[2] DCE Security version"); |
| 2 | daniel-mar | 290 | |
| 27 | daniel-mar | 291 | # The clock_seq_low field (which represents an integer in the range [0, 28-1]) is interpreted as a local domain (as represented by sec_rgy_domain_t; see sec_rgy_domain_t ); that is, an identifier domain meaningful to the local host. (Note that the data type sec_rgy_domain_t can potentially hold values outside the range [0, 28-1]; however, the only values currently registered are in the range [0, 2], so this type mismatch is not significant.) In the particular case of a POSIX host, the value sec_rgy_domain_person is to be interpreted as the "POSIX UID domain", and the value sec_rgy_domain_group is to be interpreted as the "POSIX GID domain". |
| 292 | $x = substr($uuid, 18, 2); |
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| 293 | if ($x == '00') $domain_info = 'Person (POSIX: User-ID)'; |
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| 294 | else if ($x == '01') $domain_info = 'Group (POSIX: Group-ID)'; |
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| 295 | else if ($x == '02') $domain_info = 'Organization'; |
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| 296 | else $domain_info = 'site-defined (Domain '.hexdec($x).')'; |
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| 297 | echo sprintf("%-32s %s\n", "Local Domain:", "[0x$x] $domain_info"); |
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| 298 | |||
| 2 | daniel-mar | 299 | # The time_low field (which represents an integer in the range [0, 232-1]) is interpreted as a local-ID; that is, an identifier (within the domain specified by clock_seq_low) meaningful to the local host. In the particular case of a POSIX host, when combined with a POSIX UID or POSIX GID domain in the clock_seq_low field (above), the time_low field represents a POSIX UID or POSIX GID, respectively. |
| 300 | $x = substr($uuid, 0, 8); |
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| 29 | daniel-mar | 301 | $dec = hexdec($x); |
| 302 | echo sprintf("%-32s %s\n", "Local Domain Number:", "[0x$x] $dec"); |
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| 2 | daniel-mar | 303 | |
| 304 | # Timestamp: Count of 100ns intervals since 15 Oct 1582 00:00:00 |
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| 305 | # 1/0,0000001 = 10000000 |
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| 306 | $timestamp = substr($uuid, 13, 3).substr($uuid, 8, 4).'00000000'; |
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| 307 | $ts = gmp_init($timestamp, 16); |
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| 30 | daniel-mar | 308 | $ts = gmp_sub($ts, gmp_init("122192928000000000", 10)); |
| 309 | $ms = gmp_mod($ts, gmp_init("10000000", 10)); |
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| 310 | $ts = gmp_div($ts, gmp_init("10000000", 10)); |
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| 311 | $ts = gmp_strval($ts, 10); |
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| 312 | $ms = gmp_strval($ms, 10); |
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| 313 | $ts_min = gmdate('Y-m-d H:i:s', intval($ts))."'".str_pad($ms, 7/*0.1us*/, '0', STR_PAD_LEFT).' GMT'; |
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| 2 | daniel-mar | 314 | |
| 315 | $timestamp = substr($uuid, 13, 3).substr($uuid, 8, 4).'FFFFFFFF'; |
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| 316 | $ts = gmp_init($timestamp, 16); |
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| 30 | daniel-mar | 317 | $ts = gmp_sub($ts, gmp_init("122192928000000000", 10)); |
| 318 | $ms = gmp_mod($ts, gmp_init("10000000", 10)); |
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| 319 | $ts = gmp_div($ts, gmp_init("10000000", 10)); |
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| 320 | $ts = gmp_strval($ts, 10); |
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| 321 | $ms = gmp_strval($ms, 10); |
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| 322 | $ts_max = gmdate('Y-m-d H:i:s', intval($ts))."'".str_pad($ms, 7/*0.1us*/, '0', STR_PAD_LEFT).' GMT'; |
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| 2 | daniel-mar | 323 | |
| 29 | daniel-mar | 324 | $timestamp = substr($uuid, 13, 3).substr($uuid, 8, 4)/*.'xxxxxxxx'*/; |
| 25 | daniel-mar | 325 | echo sprintf("%-32s %s\n", "Timestamp:", "[0x$timestamp] $ts_min - $ts_max"); |
| 2 | daniel-mar | 326 | |
| 28 | daniel-mar | 327 | $x = hexdec(substr($uuid, 16, 2)); |
| 328 | $dec = $x & 0x3F; // The highest 2 bits are used by "variant" (10xx) |
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| 329 | $hex = substr($uuid, 16, 2); |
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| 27 | daniel-mar | 330 | echo sprintf("%-32s %s\n", "Clock ID:", "[0x$hex] $dec"); |
| 2 | daniel-mar | 331 | |
| 332 | $x = substr($uuid, 20, 12); |
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| 333 | $nodeid = ''; |
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| 334 | for ($i=0; $i<6; $i++) { |
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| 335 | $nodeid .= substr($x, $i*2, 2); |
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| 25 | daniel-mar | 336 | if ($i != 5) $nodeid .= '-'; |
| 2 | daniel-mar | 337 | } |
| 30 | daniel-mar | 338 | $nodeid = strtoupper($nodeid); |
| 27 | daniel-mar | 339 | echo sprintf("%-32s %s\n", "Node ID:", "[0x$x] $nodeid"); |
| 2 | daniel-mar | 340 | |
| 341 | if (function_exists('decode_mac')) { |
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| 25 | daniel-mar | 342 | echo "\nIn case that this Node ID is a MAC address, here is the interpretation of that MAC address:\n\n"; |
| 29 | daniel-mar | 343 | decode_mac(strtoupper($nodeid)); |
| 2 | daniel-mar | 344 | } |
| 345 | |||
| 346 | break; |
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| 347 | case 3: |
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| 28 | daniel-mar | 348 | /* |
| 349 | Variant 1, Version 3 UUID |
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| 350 | - 48 bit Hash High |
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| 29 | daniel-mar | 351 | - 4 bit Version (fix 0x3) |
| 28 | daniel-mar | 352 | - 12 bit Hash Mid |
| 353 | - 2 bit Variant (fix 0b10) |
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| 354 | - 62 bit Hash Low |
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| 355 | */ |
||
| 356 | |||
| 25 | daniel-mar | 357 | echo sprintf("%-32s %s\n", "Version:", "[3] Name-based (MD5 hash)"); |
| 2 | daniel-mar | 358 | |
| 359 | $hash = str_replace('-', '', strtolower($uuid)); |
||
| 27 | daniel-mar | 360 | |
| 2 | daniel-mar | 361 | $hash[12] = '?'; // was overwritten by version |
| 27 | daniel-mar | 362 | |
| 32 | daniel-mar | 363 | $var16a = strtoupper(dechex((hexdec($hash[16])&3) + 0x0/*00__*/)); |
| 364 | $var16b = strtoupper(dechex((hexdec($hash[16])&3) + 0x4/*01__*/)); |
||
| 365 | $var16c = strtoupper(dechex((hexdec($hash[16])&3) + 0x8/*10__*/)); |
||
| 366 | $var16d = strtoupper(dechex((hexdec($hash[16])&3) + 0xC/*11__*/)); |
||
| 2 | daniel-mar | 367 | $hash[16] = '?'; // was partially overwritten by variant |
| 368 | |||
| 27 | daniel-mar | 369 | echo sprintf("%-32s %s\n", "MD5(Namespace+Subject):", "[0x$hash]"); |
| 370 | echo sprintf("%-32s %s\n", "", " ^"); |
||
| 371 | echo sprintf("%-32s %s\n", "", " $var16a, $var16b, $var16c, or $var16d"); |
||
| 2 | daniel-mar | 372 | |
| 373 | break; |
||
| 374 | case 4: |
||
| 28 | daniel-mar | 375 | /* |
| 376 | Variant 1, Version 4 UUID |
||
| 377 | - 48 bit Random High |
||
| 29 | daniel-mar | 378 | - 4 bit Version (fix 0x4) |
| 28 | daniel-mar | 379 | - 12 bit Random Mid |
| 380 | - 2 bit Variant (fix 0b10) |
||
| 381 | - 62 bit Random Low |
||
| 382 | */ |
||
| 383 | |||
| 25 | daniel-mar | 384 | echo sprintf("%-32s %s\n", "Version:", "[4] Random"); |
| 2 | daniel-mar | 385 | |
| 25 | daniel-mar | 386 | $rand_line1 = ''; |
| 387 | $rand_line2 = ''; |
||
| 2 | daniel-mar | 388 | for ($i=0; $i<16; $i++) { |
| 389 | $bin = base_convert(substr($uuid, $i*2, 2), 16, 2); |
||
| 390 | $bin = str_pad($bin, 8, "0", STR_PAD_LEFT); |
||
| 391 | |||
| 392 | if ($i == 6) { |
||
| 25 | daniel-mar | 393 | // was overwritten by version |
| 394 | $bin[0] = '?'; |
||
| 395 | $bin[1] = '?'; |
||
| 396 | $bin[2] = '?'; |
||
| 397 | $bin[3] = '?'; |
||
| 2 | daniel-mar | 398 | } else if ($i == 8) { |
| 25 | daniel-mar | 399 | // was partially overwritten by variant |
| 400 | $bin[0] = '?'; |
||
| 401 | $bin[1] = '?'; |
||
| 2 | daniel-mar | 402 | } |
| 403 | |||
| 25 | daniel-mar | 404 | if ($i<8) $rand_line1 .= "$bin "; |
| 405 | if ($i>=8) $rand_line2 .= "$bin "; |
||
| 2 | daniel-mar | 406 | } |
| 25 | daniel-mar | 407 | echo sprintf("%-32s %s\n", "Random bits:", trim($rand_line1)); |
| 408 | echo sprintf("%-32s %s\n", "", trim($rand_line2)); |
||
| 2 | daniel-mar | 409 | |
| 27 | daniel-mar | 410 | $rand_bytes = str_replace('-', '', strtolower($uuid)); |
| 411 | $rand_bytes[12] = '?'; // was overwritten by version |
||
| 32 | daniel-mar | 412 | $var16a = strtoupper(dechex((hexdec($rand_bytes[16])&3) + 0x0/*00__*/)); |
| 413 | $var16b = strtoupper(dechex((hexdec($rand_bytes[16])&3) + 0x4/*01__*/)); |
||
| 414 | $var16c = strtoupper(dechex((hexdec($rand_bytes[16])&3) + 0x8/*10__*/)); |
||
| 415 | $var16d = strtoupper(dechex((hexdec($rand_bytes[16])&3) + 0xC/*11__*/)); |
||
| 27 | daniel-mar | 416 | $rand_bytes[16] = '?'; // was partially overwritten by variant |
| 417 | echo sprintf("%-32s %s\n", "Random bytes:", "[0x$rand_bytes]"); |
||
| 418 | echo sprintf("%-32s %s\n", "", " ^"); |
||
| 419 | echo sprintf("%-32s %s\n", "", " $var16a, $var16b, $var16c, or $var16d"); |
||
| 420 | |||
| 2 | daniel-mar | 421 | break; |
| 422 | case 5: |
||
| 28 | daniel-mar | 423 | /* |
| 424 | Variant 1, Version 5 UUID |
||
| 425 | - 48 bit Hash High |
||
| 29 | daniel-mar | 426 | - 4 bit Version (fix 0x5) |
| 28 | daniel-mar | 427 | - 12 bit Hash Mid |
| 428 | - 2 bit Variant (fix 0b10) |
||
| 429 | - 62 bit Hash Low |
||
| 430 | */ |
||
| 431 | |||
| 25 | daniel-mar | 432 | echo sprintf("%-32s %s\n", "Version:", "[5] Name-based (SHA-1 hash)"); |
| 2 | daniel-mar | 433 | |
| 434 | $hash = str_replace('-', '', strtolower($uuid)); |
||
| 27 | daniel-mar | 435 | |
| 2 | daniel-mar | 436 | $hash[12] = '?'; // was overwritten by version |
| 27 | daniel-mar | 437 | |
| 32 | daniel-mar | 438 | $var16a = strtoupper(dechex((hexdec($hash[16])&3) + 0x0/*00__*/)); |
| 439 | $var16b = strtoupper(dechex((hexdec($hash[16])&3) + 0x4/*01__*/)); |
||
| 440 | $var16c = strtoupper(dechex((hexdec($hash[16])&3) + 0x8/*10__*/)); |
||
| 441 | $var16d = strtoupper(dechex((hexdec($hash[16])&3) + 0xC/*11__*/)); |
||
| 2 | daniel-mar | 442 | $hash[16] = '?'; // was partially overwritten by variant |
| 27 | daniel-mar | 443 | |
| 2 | daniel-mar | 444 | $hash .= '????????'; // was cut off |
| 445 | |||
| 27 | daniel-mar | 446 | echo sprintf("%-32s %s\n", "SHA1(Namespace+Subject):", "[0x$hash]"); |
| 447 | echo sprintf("%-32s %s\n", "", " ^"); |
||
| 448 | echo sprintf("%-32s %s\n", "", " $var16a, $var16b, $var16c, or $var16d"); |
||
| 2 | daniel-mar | 449 | |
| 450 | break; |
||
| 27 | daniel-mar | 451 | case 7: |
| 29 | daniel-mar | 452 | /* |
| 453 | Variant 1, Version 7 UUID |
||
| 454 | - 48 bit Unix Time in milliseconds |
||
| 455 | - 4 bit Version (fix 0x7) |
||
| 456 | - 12 bit Random |
||
| 457 | - 2 bit Variant (fix 0b10) |
||
| 458 | - 62 bit Random |
||
| 459 | */ |
||
| 460 | |||
| 31 | daniel-mar | 461 | echo sprintf("%-32s %s\n", "Version:", "[7] Unix Epoch Time"); |
| 29 | daniel-mar | 462 | |
| 463 | $timestamp = substr($uuid, 0, 12); |
||
| 30 | daniel-mar | 464 | |
| 465 | // Timestamp: Split into seconds and milliseconds |
||
| 29 | daniel-mar | 466 | $ts = gmp_init($timestamp, 16); |
| 30 | daniel-mar | 467 | $ms = gmp_mod($ts, gmp_init("1000", 10)); |
| 468 | $ts = gmp_div($ts, gmp_init("1000", 10)); |
||
| 469 | $ts = gmp_strval($ts, 10); |
||
| 470 | $ms = gmp_strval($ms, 10); |
||
| 471 | $ts = gmdate('Y-m-d H:i:s', intval($ts))."'".str_pad($ms, 3/*ms*/, '0', STR_PAD_LEFT).' GMT'; |
||
| 29 | daniel-mar | 472 | echo sprintf("%-32s %s\n", "Timestamp:", "[0x$timestamp] $ts"); |
| 473 | |||
| 474 | $rand = ''; |
||
| 475 | for ($i=6; $i<16; $i++) { |
||
| 476 | $bin = base_convert(substr($uuid, $i*2, 2), 16, 2); |
||
| 477 | $bin = str_pad($bin, 8, "0", STR_PAD_LEFT); |
||
| 478 | |||
| 479 | if ($i == 6) { |
||
| 480 | // was overwritten by version |
||
| 481 | $bin[0] = '?'; |
||
| 482 | $bin[1] = '?'; |
||
| 483 | $bin[2] = '?'; |
||
| 484 | $bin[3] = '?'; |
||
| 485 | } else if ($i == 8) { |
||
| 486 | // was partially overwritten by variant |
||
| 487 | $bin[0] = '?'; |
||
| 488 | $bin[1] = '?'; |
||
| 489 | } |
||
| 490 | |||
| 491 | $rand .= "$bin "; |
||
| 492 | } |
||
| 493 | echo sprintf("%-32s %s\n", "Random bits:", trim($rand)); |
||
| 494 | |||
| 495 | $rand_bytes = substr(str_replace('-', '', strtolower($uuid)),13); |
||
| 32 | daniel-mar | 496 | $var16a = strtoupper(dechex((hexdec($rand_bytes[3])&3) + 0x0/*00__*/)); |
| 497 | $var16b = strtoupper(dechex((hexdec($rand_bytes[3])&3) + 0x4/*01__*/)); |
||
| 498 | $var16c = strtoupper(dechex((hexdec($rand_bytes[3])&3) + 0x8/*10__*/)); |
||
| 499 | $var16d = strtoupper(dechex((hexdec($rand_bytes[3])&3) + 0xC/*11__*/)); |
||
| 29 | daniel-mar | 500 | $rand_bytes[3] = '?'; // was partially overwritten by variant |
| 501 | echo sprintf("%-32s %s\n", "Random bytes:", "[0x$rand_bytes]"); |
||
| 502 | echo sprintf("%-32s %s\n", "", " ^"); |
||
| 503 | echo sprintf("%-32s %s\n", "", " $var16a, $var16b, $var16c, or $var16d"); |
||
| 504 | |||
| 505 | // TODO: convert to and from Base32 CROCKFORD ULID (make 2 methods in uuid_utils.inc.php) |
||
| 506 | // e.g. ULID: 01GCZ05N3JFRKBRWKNGCQZGP44 |
||
| 507 | // "Be aware that all version 7 UUIDs may be converted to ULIDs but not all ULIDs may be converted to UUIDs." |
||
| 508 | |||
| 27 | daniel-mar | 509 | break; |
| 510 | case 8: |
||
| 29 | daniel-mar | 511 | /* |
| 512 | Variant 1, Version 8 UUID |
||
| 35 | daniel-mar | 513 | - 48 bit Custom data |
| 29 | daniel-mar | 514 | - 4 bit Version (fix 0x8) |
| 35 | daniel-mar | 515 | - 12 bit Custom data |
| 29 | daniel-mar | 516 | - 2 bit Variant (fix 0b10) |
| 35 | daniel-mar | 517 | - 62 bit Custom data |
| 29 | daniel-mar | 518 | */ |
| 519 | |||
| 31 | daniel-mar | 520 | echo sprintf("%-32s %s\n", "Version:", "[8] Custom implementation"); |
| 29 | daniel-mar | 521 | |
| 522 | $custom_data = substr($uuid,0,12).substr($uuid,13); // exclude version nibble |
||
| 523 | $custom_data[15] = dechex(hexdec($custom_data[15])&3); // nibble was partially overwritten by variant |
||
| 524 | $custom_data = strtolower($custom_data); |
||
| 525 | |||
| 34 | daniel-mar | 526 | $custom_block1 = substr($uuid, 0, 8); |
| 527 | $custom_block2 = substr($uuid, 8, 4); |
||
| 528 | $custom_block3 = substr($uuid, 12, 4); |
||
| 529 | $custom_block4 = substr($uuid, 16, 4); |
||
| 530 | $custom_block5 = substr($uuid, 20); |
||
| 531 | |||
| 532 | $custom_block3 = substr($custom_block3, 1); // remove version |
||
| 533 | $custom_block4[0] = dechex(hexdec($custom_block4[0])&3); // remove variant |
||
| 534 | |||
| 29 | daniel-mar | 535 | echo sprintf("%-32s %s\n", "Custom data:", "[0x$custom_data]"); |
| 34 | daniel-mar | 536 | echo sprintf("%-32s %s\n", "Custom block1 (32 bit):", "[0x$custom_block1]"); |
| 537 | echo sprintf("%-32s %s\n", "Custom block2 (16 bit):", "[0x$custom_block2]"); |
||
| 538 | echo sprintf("%-32s %s\n", "Custom block3 (12 bit):", "[0x$custom_block3]"); |
||
| 539 | echo sprintf("%-32s %s\n", "Custom block4 (14 bit):", "[0x$custom_block4]"); |
||
| 540 | echo sprintf("%-32s %s\n", "Custom block5 (48 bit):", "[0x$custom_block5]"); |
||
| 29 | daniel-mar | 541 | |
| 27 | daniel-mar | 542 | break; |
| 2 | daniel-mar | 543 | default: |
| 25 | daniel-mar | 544 | echo sprintf("%-32s %s\n", "Version:", "[$version] Unknown"); |
| 2 | daniel-mar | 545 | break; |
| 546 | } |
||
| 547 | |||
| 548 | break; |
||
| 549 | case 2: |
||
| 35 | daniel-mar | 550 | // TODO: Show byte order: 00112233-4455-6677-8899-aabbccddeeff => 33 22 11 00 55 44 77 66 88 99 aa bb cc dd ee ff |
| 551 | |||
| 31 | daniel-mar | 552 | // TODO: Is there any scheme in that legacy Microsoft GUIDs? |
| 27 | daniel-mar | 553 | echo sprintf("%-32s %s\n", "Variant:", "[0b110] Reserved for Microsoft Corporation"); |
| 2 | daniel-mar | 554 | break; |
| 555 | case 3: |
||
| 27 | daniel-mar | 556 | echo sprintf("%-32s %s\n", "Variant:", "[0b111] Reserved for future use"); |
| 2 | daniel-mar | 557 | break; |
| 558 | } |
||
| 28 | daniel-mar | 559 | |
| 560 | if (!$echo) { |
||
| 561 | $out = ob_get_contents(); |
||
| 562 | ob_end_clean(); |
||
| 563 | return $out; |
||
| 31 | daniel-mar | 564 | } else { |
| 565 | return true; |
||
| 28 | daniel-mar | 566 | } |
| 2 | daniel-mar | 567 | } |
| 568 | |||
| 569 | function uuid_canonize($uuid) { |
||
| 570 | if (!uuid_valid($uuid)) return false; |
||
| 571 | return oid_to_uuid(uuid_to_oid($uuid)); |
||
| 572 | } |
||
| 573 | |||
| 574 | function oid_to_uuid($oid) { |
||
| 575 | if (!is_uuid_oid($oid)) return false; |
||
| 576 | |||
| 8 | daniel-mar | 577 | if (substr($oid,0,1) == '.') { |
| 2 | daniel-mar | 578 | $oid = substr($oid, 1); |
| 579 | } |
||
| 580 | $ary = explode('.', $oid); |
||
| 581 | |||
| 582 | if (!isset($ary[2])) return false; |
||
| 583 | |||
| 584 | $val = $ary[2]; |
||
| 585 | |||
| 586 | $x = gmp_init($val, 10); |
||
| 587 | $y = gmp_strval($x, 16); |
||
| 588 | $y = str_pad($y, 32, "0", STR_PAD_LEFT); |
||
| 589 | return substr($y, 0, 8).'-'. |
||
| 590 | substr($y, 8, 4).'-'. |
||
| 591 | substr($y, 12, 4).'-'. |
||
| 592 | substr($y, 16, 4).'-'. |
||
| 593 | substr($y, 20, 12); |
||
| 594 | } |
||
| 595 | |||
| 596 | function is_uuid_oid($oid, $only_allow_root=false) { |
||
| 9 | daniel-mar | 597 | if (substr($oid,0,1) == '.') $oid = substr($oid, 1); // remove leading dot |
| 2 | daniel-mar | 598 | |
| 599 | $ary = explode('.', $oid); |
||
| 600 | |||
| 601 | if ($only_allow_root) { |
||
| 602 | if (count($ary) != 3) return false; |
||
| 603 | } else { |
||
| 604 | if (count($ary) < 3) return false; |
||
| 605 | } |
||
| 606 | |||
| 607 | if ($ary[0] != '2') return false; |
||
| 608 | if ($ary[1] != '25') return false; |
||
| 609 | for ($i=2; $i<count($ary); $i++) { |
||
| 610 | $v = $ary[$i]; |
||
| 611 | if (!is_numeric($v)) return false; |
||
| 612 | if ($i == 2) { |
||
| 613 | // Must be in the range of 128 bit UUID |
||
| 614 | $test = gmp_init($v, 10); |
||
| 615 | if (strlen(gmp_strval($test, 16)) > 32) return false; |
||
| 616 | } |
||
| 617 | if ($v < 0) return false; |
||
| 618 | } |
||
| 619 | |||
| 620 | return true; |
||
| 621 | } |
||
| 622 | |||
| 623 | function uuid_to_oid($uuid) { |
||
| 624 | if (!uuid_valid($uuid)) return false; |
||
| 625 | |||
| 626 | $uuid = str_replace(array('-', '{', '}'), '', $uuid); |
||
| 627 | $x = gmp_init($uuid, 16); |
||
| 29 | daniel-mar | 628 | return '2.25.'.gmp_strval($x, 10); |
| 2 | daniel-mar | 629 | } |
| 630 | |||
| 31 | daniel-mar | 631 | function uuid_numeric_value($uuid) { |
| 632 | $oid = uuid_to_oid($uuid); |
||
| 633 | if (!$oid) return false; |
||
| 634 | return substr($oid, strlen('2.25.')); |
||
| 635 | } |
||
| 636 | |||
| 637 | function uuid_c_syntax($uuid) { |
||
| 638 | $uuid = str_replace('{', '', $uuid); |
||
| 639 | return '{ 0x' . substr($uuid, 0, 8) . |
||
| 640 | ', 0x' . substr($uuid, 9, 4) . |
||
| 641 | ', 0x' . substr($uuid, 14, 4) . |
||
| 642 | ', { 0x' . substr($uuid, 19, 2). |
||
| 643 | ', 0x' . substr($uuid, 21, 2) . |
||
| 644 | ', 0x' . substr($uuid, 24, 2) . |
||
| 645 | ', 0x' . substr($uuid, 26, 2) . |
||
| 646 | ', 0x' . substr($uuid, 28, 2) . |
||
| 647 | ', 0x' . substr($uuid, 30, 2) . |
||
| 648 | ', 0x' . substr($uuid, 32, 2) . |
||
| 649 | ', 0x' . substr($uuid, 34, 2) . ' } }'; |
||
| 650 | } |
||
| 651 | |||
| 30 | daniel-mar | 652 | function gen_uuid($prefer_mac_address_based = true) { |
| 653 | $uuid = $prefer_mac_address_based ? gen_uuid_reordered()/*UUIDv6*/ : false; |
||
| 654 | if ($uuid === false) $uuid = gen_uuid_unix_epoch()/*UUIDv7*/; |
||
| 2 | daniel-mar | 655 | return $uuid; |
| 656 | } |
||
| 657 | |||
| 30 | daniel-mar | 658 | # -------------------------------------- |
| 659 | // Variant 1, Version 1 (Time based) UUID |
||
| 660 | # -------------------------------------- |
||
| 28 | daniel-mar | 661 | |
| 30 | daniel-mar | 662 | function gen_uuid_v1() { |
| 663 | return gen_uuid_timebased(); |
||
| 664 | } |
||
| 2 | daniel-mar | 665 | function gen_uuid_timebased() { |
| 666 | # On Debian: apt-get install php-uuid |
||
| 667 | # extension_loaded('uuid') |
||
| 668 | if (function_exists('uuid_create')) { |
||
| 669 | # OSSP uuid extension like seen in php5-uuid at Debian 8 |
||
| 670 | /* |
||
| 671 | $x = uuid_create($context); |
||
| 672 | uuid_make($context, UUID_MAKE_V1); |
||
| 673 | uuid_export($context, UUID_FMT_STR, $uuid); |
||
| 674 | return trim($uuid); |
||
| 675 | */ |
||
| 676 | |||
| 677 | # PECL uuid extension like seen in php-uuid at Debian 9 |
||
| 678 | return trim(uuid_create(UUID_TYPE_TIME)); |
||
| 679 | } |
||
| 680 | |||
| 681 | # On Debian: apt-get install uuid-runtime |
||
| 682 | if (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') { |
||
| 683 | $out = array(); |
||
| 684 | $ec = -1; |
||
| 685 | exec('uuidgen -t 2>/dev/null', $out, $ec); |
||
| 686 | if ($ec == 0) return trim($out[0]); |
||
| 687 | } |
||
| 688 | |||
| 689 | # If we hadn't any success yet, then implement the time based generation routine ourselves! |
||
| 690 | # Based on https://github.com/fredriklindberg/class.uuid.php/blob/master/class.uuid.php |
||
| 691 | |||
| 692 | $uuid = array( |
||
| 693 | 'time_low' => 0, /* 32-bit */ |
||
| 694 | 'time_mid' => 0, /* 16-bit */ |
||
| 695 | 'time_hi' => 0, /* 16-bit */ |
||
| 696 | 'clock_seq_hi' => 0, /* 8-bit */ |
||
| 697 | 'clock_seq_low' => 0, /* 8-bit */ |
||
| 698 | 'node' => array() /* 48-bit */ |
||
| 699 | ); |
||
| 700 | |||
| 701 | /* |
||
| 702 | * Get current time in 100 ns intervals. The magic value |
||
| 703 | * is the offset between UNIX epoch and the UUID UTC |
||
| 704 | * time base October 15, 1582. |
||
| 705 | */ |
||
| 29 | daniel-mar | 706 | usleep(1); // make sure the timestamp is not used before |
| 2 | daniel-mar | 707 | $tp = gettimeofday(); |
| 708 | $time = ($tp['sec'] * 10000000) + ($tp['usec'] * 10) + 0x01B21DD213814000; |
||
| 709 | |||
| 710 | $uuid['time_low'] = $time & 0xffffffff; |
||
| 711 | /* Work around PHP 32-bit bit-operation limits */ |
||
| 712 | $high = intval($time / 0xffffffff); |
||
| 713 | $uuid['time_mid'] = $high & 0xffff; |
||
| 714 | $uuid['time_hi'] = (($high >> 16) & 0xfff) | (1/*TimeBased*/ << 12); |
||
| 715 | |||
| 716 | /* |
||
| 717 | * We don't support saved state information and generate |
||
| 718 | * a random clock sequence each time. |
||
| 719 | */ |
||
| 24 | daniel-mar | 720 | $uuid['clock_seq_hi'] = 0x80 | _random_int(0, 64); |
| 721 | $uuid['clock_seq_low'] = _random_int(0, 255); |
||
| 2 | daniel-mar | 722 | |
| 723 | /* |
||
| 724 | * Node should be set to the 48-bit IEEE node identifier |
||
| 725 | */ |
||
| 726 | $mac = get_mac_address(); |
||
| 727 | if ($mac) { |
||
| 25 | daniel-mar | 728 | $node = str_replace('-','',str_replace(':','',$mac)); |
| 2 | daniel-mar | 729 | for ($i = 0; $i < 6; $i++) { |
| 730 | $uuid['node'][$i] = hexdec(substr($node, $i*2, 2)); |
||
| 731 | } |
||
| 732 | |||
| 733 | /* |
||
| 734 | * Now output the UUID |
||
| 735 | */ |
||
| 736 | return sprintf( |
||
| 737 | '%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x', |
||
| 738 | ($uuid['time_low']), ($uuid['time_mid']), ($uuid['time_hi']), |
||
| 739 | $uuid['clock_seq_hi'], $uuid['clock_seq_low'], |
||
| 740 | $uuid['node'][0], $uuid['node'][1], $uuid['node'][2], |
||
| 741 | $uuid['node'][3], $uuid['node'][4], $uuid['node'][5]); |
||
| 742 | } |
||
| 743 | |||
| 744 | # We cannot generate the timebased UUID! |
||
| 745 | return false; |
||
| 746 | } |
||
| 747 | function get_mac_address() { |
||
| 748 | static $detected_mac = false; |
||
| 749 | |||
| 750 | if ($detected_mac !== false) { // false NOT null! |
||
| 751 | return $detected_mac; |
||
| 752 | } |
||
| 753 | |||
| 754 | // TODO: This should actually be part of mac_utils.inc.php, but we need it |
||
| 755 | // here, and mac_utils.inc.php shall only be optional. What to do? |
||
| 756 | if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') { |
||
| 757 | // Windows |
||
| 758 | $cmds = array( |
||
| 759 | "ipconfig /all", // faster |
||
| 760 | "getmac" |
||
| 761 | ); |
||
| 762 | foreach ($cmds as $cmd) { |
||
| 763 | $out = array(); |
||
| 764 | $ec = -1; |
||
| 765 | exec($cmd, $out, $ec); |
||
| 766 | if ($ec == 0) { |
||
| 767 | $out = implode("\n",$out); |
||
| 768 | $m = array(); |
||
| 31 | daniel-mar | 769 | if (preg_match("/([0-9a-f]{2}-[0-9a-f]{2}-[0-9a-f]{2}-[0-9a-f]{2}-[0-9a-f]{2}-[0-9a-f]{2})/ismU", $out, $m)) { |
| 25 | daniel-mar | 770 | $detected_mac = strtolower($m[1]); |
| 2 | daniel-mar | 771 | return $detected_mac; |
| 772 | } |
||
| 773 | } |
||
| 774 | } |
||
| 775 | } else if (strtoupper(PHP_OS) == 'DARWIN') { |
||
| 776 | // Mac OS X |
||
| 777 | $cmds = array( |
||
| 778 | "networksetup -listallhardwareports 2>/dev/null", |
||
| 779 | "netstat -i 2>/dev/null" |
||
| 780 | ); |
||
| 781 | foreach ($cmds as $cmd) { |
||
| 782 | $out = array(); |
||
| 783 | $ec = -1; |
||
| 784 | exec($cmd, $out, $ec); |
||
| 785 | if ($ec == 0) { |
||
| 786 | $out = implode("\n",$out); |
||
| 787 | $m = array(); |
||
| 788 | if (preg_match("/([0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2})/ismU", $out, $m)) { |
||
| 789 | $detected_mac = $m[1]; |
||
| 790 | return $detected_mac; |
||
| 791 | } |
||
| 792 | } |
||
| 793 | } |
||
| 794 | } else { |
||
| 795 | // Linux |
||
| 8 | daniel-mar | 796 | $addresses = @glob('/sys/class/net/'.'*'.'/address'); |
| 797 | foreach ($addresses as $x) { |
||
| 2 | daniel-mar | 798 | if (!strstr($x,'/lo/')) { |
| 799 | $detected_mac = trim(file_get_contents($x)); |
||
| 800 | return $detected_mac; |
||
| 801 | } |
||
| 802 | } |
||
| 803 | $cmds = array( |
||
| 804 | "netstat -ie 2>/dev/null", |
||
| 805 | "ifconfig 2>/dev/null" // only available for root (because it is in sbin) |
||
| 806 | ); |
||
| 807 | foreach ($cmds as $cmd) { |
||
| 808 | $out = array(); |
||
| 809 | $ec = -1; |
||
| 810 | exec($cmd, $out, $ec); |
||
| 811 | if ($ec == 0) { |
||
| 812 | $out = implode("\n",$out); |
||
| 813 | $m = array(); |
||
| 814 | if (preg_match("/([0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2})/ismU", $out, $m)) { |
||
| 815 | $detected_mac = $m[1]; |
||
| 816 | return $detected_mac; |
||
| 817 | } |
||
| 818 | } |
||
| 819 | } |
||
| 820 | } |
||
| 821 | |||
| 822 | $detected_mac = null; |
||
| 823 | return $detected_mac; |
||
| 824 | } |
||
| 825 | |||
| 30 | daniel-mar | 826 | # -------------------------------------- |
| 28 | daniel-mar | 827 | // Variant 1, Version 2 (DCE Security) UUID |
| 30 | daniel-mar | 828 | # -------------------------------------- |
| 829 | |||
| 27 | daniel-mar | 830 | define('DCE_DOMAIN_PERSON', 0); |
| 831 | define('DCE_DOMAIN_GROUP', 1); |
||
| 832 | define('DCE_DOMAIN_ORG', 2); |
||
| 30 | daniel-mar | 833 | function gen_uuid_v2($domain, $id) { |
| 834 | return gen_uuid_dce($domain, $id); |
||
| 835 | } |
||
| 2 | daniel-mar | 836 | function gen_uuid_dce($domain, $id) { |
| 31 | daniel-mar | 837 | if (($domain ?? '') === '') throw new Exception("Domain ID missing"); |
| 838 | if (!is_numeric($domain)) throw new Exception("Invalid Domain ID"); |
||
| 839 | if (($domain < 0) || ($domain > 255)) throw new Exception("Domain ID must be in range 0..255"); |
||
| 840 | |||
| 841 | if (($id ?? '') === '') throw new Exception("ID value missing"); |
||
| 842 | if (!is_numeric($id)) throw new Exception("Invalid ID value"); |
||
| 843 | if (($id < 0) || ($id > 4294967295)) throw new Exception("ID value must be in range 0..4294967295"); |
||
| 844 | |||
| 2 | daniel-mar | 845 | # Start with a version 1 UUID |
| 846 | $uuid = gen_uuid_timebased(); |
||
| 847 | |||
| 27 | daniel-mar | 848 | # Add Domain Number |
| 2 | daniel-mar | 849 | $uuid = str_pad(dechex($id), 8, '0', STR_PAD_LEFT) . substr($uuid, 8); |
| 850 | |||
| 27 | daniel-mar | 851 | # Add Domain (this overwrites part of the clock sequence) |
| 2 | daniel-mar | 852 | $uuid = substr($uuid,0,21) . str_pad(dechex($domain), 2, '0', STR_PAD_LEFT) . substr($uuid, 23); |
| 853 | |||
| 854 | # Change version to 2 |
||
| 855 | $uuid[14] = '2'; |
||
| 856 | |||
| 857 | return $uuid; |
||
| 858 | } |
||
| 859 | |||
| 30 | daniel-mar | 860 | # -------------------------------------- |
| 28 | daniel-mar | 861 | // Variant 1, Version 3 (MD5 name based) UUID |
| 30 | daniel-mar | 862 | # -------------------------------------- |
| 863 | |||
| 864 | function gen_uuid_v3($namespace_uuid, $name) { |
||
| 865 | return gen_uuid_md5_namebased($namespace_uuid, $name); |
||
| 866 | } |
||
| 2 | daniel-mar | 867 | function gen_uuid_md5_namebased($namespace_uuid, $name) { |
| 31 | daniel-mar | 868 | if (($namespace_uuid ?? '') === '') throw new Exception("Namespace UUID missing"); |
| 869 | if (!uuid_valid($namespace_uuid)) throw new Exception("Invalid namespace UUID '$namespace_uuid'"); |
||
| 870 | |||
| 2 | daniel-mar | 871 | $namespace_uuid = uuid_canonize($namespace_uuid); |
| 872 | $namespace_uuid = str_replace('-', '', $namespace_uuid); |
||
| 873 | $namespace_uuid = hex2bin($namespace_uuid); |
||
| 874 | |||
| 875 | $hash = md5($namespace_uuid.$name); |
||
| 876 | $hash[12] = '3'; // Set version: 3 = MD5 |
||
| 877 | $hash[16] = dechex(hexdec($hash[16]) & 0x3 | 0x8); // Set variant to "10xx" (RFC4122) |
||
| 878 | |||
| 879 | return substr($hash, 0, 8).'-'. |
||
| 880 | substr($hash, 8, 4).'-'. |
||
| 881 | substr($hash, 12, 4).'-'. |
||
| 882 | substr($hash, 16, 4).'-'. |
||
| 883 | substr($hash, 20, 12); |
||
| 884 | } |
||
| 885 | |||
| 30 | daniel-mar | 886 | # -------------------------------------- |
| 28 | daniel-mar | 887 | // Variant 1, Version 4 (Random) UUID |
| 30 | daniel-mar | 888 | # -------------------------------------- |
| 889 | |||
| 890 | function gen_uuid_v4() { |
||
| 891 | return gen_uuid_random(); |
||
| 892 | } |
||
| 2 | daniel-mar | 893 | function gen_uuid_random() { |
| 894 | # On Windows: Requires |
||
| 895 | # extension_dir = "C:\php-8.0.3-nts-Win32-vs16-x64\ext" |
||
| 896 | # extension=com_dotnet |
||
| 31 | daniel-mar | 897 | // TODO: can we trust that com_create_guid() always outputs UUIDv4? |
| 30 | daniel-mar | 898 | /* |
| 2 | daniel-mar | 899 | if (function_exists('com_create_guid')) { |
| 900 | return strtolower(trim(com_create_guid(), '{}')); |
||
| 901 | } |
||
| 30 | daniel-mar | 902 | */ |
| 2 | daniel-mar | 903 | |
| 904 | # On Debian: apt-get install php-uuid |
||
| 905 | # extension_loaded('uuid') |
||
| 906 | if (function_exists('uuid_create')) { |
||
| 907 | # OSSP uuid extension like seen in php5-uuid at Debian 8 |
||
| 908 | /* |
||
| 909 | $x = uuid_create($context); |
||
| 910 | uuid_make($context, UUID_MAKE_V4); |
||
| 911 | uuid_export($context, UUID_FMT_STR, $uuid); |
||
| 912 | return trim($uuid); |
||
| 913 | */ |
||
| 914 | |||
| 915 | # PECL uuid extension like seen in php-uuid at Debian 9 |
||
| 916 | return trim(uuid_create(UUID_TYPE_RANDOM)); |
||
| 917 | } |
||
| 918 | |||
| 919 | if (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') { |
||
| 920 | # On Debian: apt-get install uuid-runtime |
||
| 921 | $out = array(); |
||
| 922 | $ec = -1; |
||
| 923 | exec('uuidgen -r 2>/dev/null', $out, $ec); |
||
| 924 | if ($ec == 0) return trim($out[0]); |
||
| 925 | |||
| 926 | # On Debian Jessie: UUID V4 (Random) |
||
| 927 | if (file_exists('/proc/sys/kernel/random/uuid')) { |
||
| 928 | return trim(file_get_contents('/proc/sys/kernel/random/uuid')); |
||
| 929 | } |
||
| 930 | } |
||
| 931 | |||
| 932 | # Make the UUID by ourselves |
||
| 933 | # Source: http://rogerstringer.com/2013/11/15/generate-uuids-php |
||
| 934 | return sprintf( '%04x%04x-%04x-%04x-%04x-%04x%04x%04x', |
||
| 24 | daniel-mar | 935 | _random_int( 0, 0xffff ), _random_int( 0, 0xffff ), |
| 936 | _random_int( 0, 0xffff ), |
||
| 937 | _random_int( 0, 0x0fff ) | 0x4000, |
||
| 938 | _random_int( 0, 0x3fff ) | 0x8000, |
||
| 939 | _random_int( 0, 0xffff ), _random_int( 0, 0xffff ), _random_int( 0, 0xffff ) |
||
| 2 | daniel-mar | 940 | ); |
| 941 | } |
||
| 942 | |||
| 30 | daniel-mar | 943 | # -------------------------------------- |
| 28 | daniel-mar | 944 | // Variant 1, Version 5 (SHA1 name based) UUID |
| 30 | daniel-mar | 945 | # -------------------------------------- |
| 946 | |||
| 947 | function gen_uuid_v5($namespace_uuid, $name) { |
||
| 948 | return gen_uuid_sha1_namebased($namespace_uuid, $name); |
||
| 949 | } |
||
| 2 | daniel-mar | 950 | function gen_uuid_sha1_namebased($namespace_uuid, $name) { |
| 31 | daniel-mar | 951 | if (($namespace_uuid ?? '') === '') throw new Exception("Namespace UUID missing"); |
| 952 | if (!uuid_valid($namespace_uuid)) throw new Exception("Invalid namespace UUID '$namespace_uuid'"); |
||
| 953 | |||
| 2 | daniel-mar | 954 | $namespace_uuid = str_replace('-', '', $namespace_uuid); |
| 955 | $namespace_uuid = hex2bin($namespace_uuid); |
||
| 956 | |||
| 957 | $hash = sha1($namespace_uuid.$name); |
||
| 958 | $hash[12] = '5'; // Set version: 5 = SHA1 |
||
| 27 | daniel-mar | 959 | $hash[16] = dechex(hexdec($hash[16]) & 0x3 | 0x8); // Set variant to "0b10__" (RFC4122/DCE1.1) |
| 2 | daniel-mar | 960 | |
| 961 | return substr($hash, 0, 8).'-'. |
||
| 962 | substr($hash, 8, 4).'-'. |
||
| 963 | substr($hash, 12, 4).'-'. |
||
| 964 | substr($hash, 16, 4).'-'. |
||
| 965 | substr($hash, 20, 12); |
||
| 966 | } |
||
| 967 | |||
| 30 | daniel-mar | 968 | # -------------------------------------- |
| 969 | // Variant 1, Version 6 (Reordered) UUID |
||
| 970 | # -------------------------------------- |
||
| 971 | |||
| 972 | function gen_uuid_v6() { |
||
| 973 | return gen_uuid_reordered(); |
||
| 974 | } |
||
| 975 | function gen_uuid_reordered() { |
||
| 976 | // Start with a UUIDv1 |
||
| 977 | $uuid = gen_uuid_timebased(); |
||
| 978 | |||
| 979 | // Convert to UUIDv6 |
||
| 980 | return uuid1_to_uuid6($uuid); |
||
| 981 | } |
||
| 982 | function uuid6_to_uuid1($hex) { |
||
| 983 | $hex = uuid_canonize($hex); |
||
| 984 | if ($hex === false) return false; |
||
| 985 | $hex = preg_replace('@[^0-9A-F]@i', '', $hex); |
||
| 986 | $hex = substr($hex, 7, 5). |
||
| 987 | substr($hex, 13, 3). |
||
| 988 | substr($hex, 3, 4). |
||
| 989 | '1' . substr($hex, 0, 3). |
||
| 990 | substr($hex, 16); |
||
| 991 | return substr($hex, 0, 8).'-'. |
||
| 992 | substr($hex, 8, 4).'-'. |
||
| 993 | substr($hex, 12, 4).'-'. |
||
| 994 | substr($hex, 16, 4).'-'. |
||
| 995 | substr($hex, 20, 12); |
||
| 996 | } |
||
| 997 | function uuid1_to_uuid6($hex) { |
||
| 998 | $hex = uuid_canonize($hex); |
||
| 999 | if ($hex === false) return false; |
||
| 1000 | $hex = preg_replace('@[^0-9A-F]@i', '', $hex); |
||
| 1001 | $hex = substr($hex, 13, 3). |
||
| 1002 | substr($hex, 8, 4). |
||
| 1003 | substr($hex, 0, 5). |
||
| 1004 | '6' . substr($hex, 5, 3). |
||
| 1005 | substr($hex, 16); |
||
| 1006 | return substr($hex, 0, 8).'-'. |
||
| 1007 | substr($hex, 8, 4).'-'. |
||
| 1008 | substr($hex, 12, 4).'-'. |
||
| 1009 | substr($hex, 16, 4).'-'. |
||
| 1010 | substr($hex, 20, 12); |
||
| 1011 | } |
||
| 1012 | |||
| 1013 | # -------------------------------------- |
||
| 1014 | // Variant 1, Version 7 (Unix Epoch) UUID |
||
| 1015 | # -------------------------------------- |
||
| 1016 | |||
| 1017 | function gen_uuid_v7() { |
||
| 1018 | return gen_uuid_unix_epoch(); |
||
| 1019 | } |
||
| 1020 | function gen_uuid_unix_epoch() { |
||
| 1021 | // Start with an UUIDv4 |
||
| 1022 | $uuid = gen_uuid_random(); |
||
| 1023 | |||
| 1024 | // Add the timestamp |
||
| 1025 | usleep(1); // make sure the timestamp is not repeated |
||
| 1026 | if (function_exists('gmp_init')) { |
||
| 1027 | list($ms,$sec) = explode(' ', microtime(false)); |
||
| 1028 | $sec = gmp_init($sec, 10); |
||
| 1029 | $ms = gmp_init(substr($ms,2,3), 10); |
||
| 1030 | $unix_ts = gmp_strval(gmp_add(gmp_mul($sec, '1000'), $ms),16); |
||
| 1031 | } else { |
||
| 1032 | $unix_ts = dechex((int)round(microtime(true)*1000)); |
||
| 1033 | } |
||
| 1034 | $unix_ts = str_pad($unix_ts, 12, '0', STR_PAD_LEFT); |
||
| 1035 | for ($i=0;$i<8;$i++) $uuid[$i] = substr($unix_ts, $i, 1); |
||
| 1036 | for ($i=0;$i<4;$i++) $uuid[9+$i] = substr($unix_ts, 8+$i, 1); |
||
| 1037 | |||
| 1038 | // set version |
||
| 1039 | $uuid[14] = '7'; |
||
| 1040 | |||
| 1041 | return $uuid; |
||
| 1042 | } |
||
| 1043 | |||
| 1044 | # -------------------------------------- |
||
| 34 | daniel-mar | 1045 | // Variant 1, Version 8 (Custom) UUID |
| 1046 | # -------------------------------------- |
||
| 30 | daniel-mar | 1047 | |
| 34 | daniel-mar | 1048 | function gen_uuid_v8($block1_32bit, $block2_16bit, $block3_12bit, $block4_14bit, $block5_48bit) { |
| 1049 | return gen_uuid_custom($block1_32bit, $block2_16bit, $block3_12bit, $block4_14bit, $block5_48bit); |
||
| 1050 | } |
||
| 1051 | function gen_uuid_custom($block1_32bit, $block2_16bit, $block3_12bit, $block4_14bit, $block5_48bit) { |
||
| 1052 | if (preg_replace('@[0-9A-F]@i', '', $block1_32bit) != '') throw new Exception("Invalid data for block 1. Must be hex input"); |
||
| 1053 | if (preg_replace('@[0-9A-F]@i', '', $block2_16bit) != '') throw new Exception("Invalid data for block 2. Must be hex input"); |
||
| 1054 | if (preg_replace('@[0-9A-F]@i', '', $block3_12bit) != '') throw new Exception("Invalid data for block 3. Must be hex input"); |
||
| 1055 | if (preg_replace('@[0-9A-F]@i', '', $block4_14bit) != '') throw new Exception("Invalid data for block 4. Must be hex input"); |
||
| 1056 | if (preg_replace('@[0-9A-F]@i', '', $block5_48bit) != '') throw new Exception("Invalid data for block 5. Must be hex input"); |
||
| 1057 | |||
| 1058 | $block1 = str_pad(substr($block1_32bit, -8), 8, '0', STR_PAD_LEFT); |
||
| 1059 | $block2 = str_pad(substr($block2_16bit, -4), 4, '0', STR_PAD_LEFT); |
||
| 1060 | $block3 = str_pad(substr($block3_12bit, -4), 4, '0', STR_PAD_LEFT); |
||
| 1061 | $block4 = str_pad(substr($block4_14bit, -4), 4, '0', STR_PAD_LEFT); |
||
| 1062 | $block5 = str_pad(substr($block5_48bit,-12), 12, '0', STR_PAD_LEFT); |
||
| 1063 | |||
| 1064 | $block3[0] = '8'; // Version 8 = Custom |
||
| 1065 | $block4[0] = dechex((hexdec($block4[0])&3) + 0b1000); // Variant 0b10__ = RFC4122 |
||
| 1066 | |||
| 1067 | return strtolower($block1.'-'.$block2.'-'.$block3.'-'.$block4.'-'.$block5); |
||
| 1068 | } |
||
| 1069 | |||
| 1070 | # -------------------------------------- |
||
| 1071 | |||
| 2 | daniel-mar | 1072 | // http://php.net/manual/de/function.hex2bin.php#113057 |
| 1073 | if ( !function_exists( 'hex2bin' ) ) { |
||
| 1074 | function hex2bin( $str ) { |
||
| 1075 | $sbin = ""; |
||
| 1076 | $len = strlen( $str ); |
||
| 1077 | for ( $i = 0; $i < $len; $i += 2 ) { |
||
| 1078 | $sbin .= pack( "H*", substr( $str, $i, 2 ) ); |
||
| 1079 | } |
||
| 1080 | |||
| 1081 | return $sbin; |
||
| 1082 | } |
||
| 1083 | } |