Rev 33 | Rev 36 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 3 | daniel-mar | 1 | <?php |
| 2 | |||
| 3 | /* |
||
| 4 | * UUID utils for PHP |
||
| 33 | daniel-mar | 5 | * Copyright 2011 - 2023 Daniel Marschall, ViaThinkSoft |
| 34 | daniel-mar | 6 | * Version 2023-07-13 |
| 3 | daniel-mar | 7 | * |
| 8 | * Licensed under the Apache License, Version 2.0 (the "License"); |
||
| 9 | * you may not use this file except in compliance with the License. |
||
| 10 | * You may obtain a copy of the License at |
||
| 11 | * |
||
| 12 | * http://www.apache.org/licenses/LICENSE-2.0 |
||
| 13 | * |
||
| 14 | * Unless required by applicable law or agreed to in writing, software |
||
| 15 | * distributed under the License is distributed on an "AS IS" BASIS, |
||
| 16 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
||
| 17 | * See the License for the specific language governing permissions and |
||
| 18 | * limitations under the License. |
||
| 19 | */ |
||
| 20 | |||
| 12 | daniel-mar | 21 | # This library requires either the GMP extension (or BCMath if gmp_supplement.inc.php is present) |
| 34 | daniel-mar | 22 | // TODO: If we are on 64 bit PHP (PHP_INT_SIZE > 4), then replace GMP with normal PHP operations |
| 12 | daniel-mar | 23 | |
| 14 | daniel-mar | 24 | if (file_exists(__DIR__ . '/mac_utils.inc.phps')) include_once __DIR__ . '/mac_utils.inc.phps'; // optionally used for uuid_info() |
| 34 | daniel-mar | 25 | if (file_exists(__DIR__ . '/mac_utils.inc.php')) include_once __DIR__ . '/mac_utils.inc.php'; // optionally used for uuid_info() |
| 12 | daniel-mar | 26 | if (file_exists(__DIR__ . '/gmp_supplement.inc.php')) include_once __DIR__ . '/gmp_supplement.inc.php'; |
| 3 | daniel-mar | 27 | |
| 34 | daniel-mar | 28 | const UUID_NAMEBASED_NS_DNS = '6ba7b810-9dad-11d1-80b4-00c04fd430c8'; // FQDN |
| 29 | const UUID_NAMEBASED_NS_URL = '6ba7b811-9dad-11d1-80b4-00c04fd430c8'; |
||
| 30 | const UUID_NAMEBASED_NS_OID = '6ba7b812-9dad-11d1-80b4-00c04fd430c8'; |
||
| 31 | const UUID_NAMEBASED_NS_X500_DN = '6ba7b814-9dad-11d1-80b4-00c04fd430c8'; // "DER or text encoding" according to RFC4122bis |
||
| 3 | daniel-mar | 32 | |
| 34 | daniel-mar | 33 | if (!function_exists('_random_int')) { |
| 34 | function _random_int($min, $max) { |
||
| 35 | // This function tries a CSRNG and falls back to a RNG if no CSRNG is available |
||
| 36 | try { |
||
| 37 | return random_int($min, $max); |
||
| 38 | } catch (Exception $e) { |
||
| 39 | return mt_rand($min, $max); |
||
| 40 | } |
||
| 41 | } |
||
| 42 | } |
||
| 43 | |||
| 3 | daniel-mar | 44 | function uuid_valid($uuid) { |
| 45 | $uuid = str_replace(array('-', '{', '}'), '', $uuid); |
||
| 46 | $uuid = strtoupper($uuid); |
||
| 16 | daniel-mar | 47 | #$uuid = trim($uuid); |
| 3 | daniel-mar | 48 | |
| 49 | if (strlen($uuid) != 32) return false; |
||
| 50 | |||
| 34 | daniel-mar | 51 | $uuid = preg_replace('@[0-9A-F]@i', '', $uuid); |
| 3 | daniel-mar | 52 | |
| 53 | return ($uuid == ''); |
||
| 54 | } |
||
| 55 | |||
| 34 | daniel-mar | 56 | function uuid_info($uuid, $echo=true) { |
| 3 | daniel-mar | 57 | if (!uuid_valid($uuid)) return false; |
| 58 | |||
| 34 | daniel-mar | 59 | if (!$echo) ob_start(); |
| 60 | |||
| 16 | daniel-mar | 61 | #$uuid = trim($uuid); |
| 3 | daniel-mar | 62 | # $uuid = str_replace(array('-', '{', '}'), '', $uuid); |
| 34 | daniel-mar | 63 | $uuid = strtolower($uuid); |
| 64 | $uuid = preg_replace('@[^0-9A-F]@i', '', $uuid); |
||
| 3 | daniel-mar | 65 | |
| 66 | $x = hexdec(substr($uuid, 16, 1)); |
||
| 34 | daniel-mar | 67 | if ($x >= 14 /* 0b1110 */) $variant = 3; |
| 68 | else if ($x >= 12 /* 0b110_ */) $variant = 2; |
||
| 69 | else if ($x >= 8 /* 0b10__ */) $variant = 1; |
||
| 70 | else if ($x >= 0 /* 0b0___ */) $variant = 0; |
||
| 16 | daniel-mar | 71 | else $variant = -1; // should not happen |
| 3 | daniel-mar | 72 | |
| 34 | daniel-mar | 73 | if ($uuid == '00000000000000000000000000000000') { |
| 74 | echo sprintf("%-32s %s\n", "Special Use:", "Nil UUID"); |
||
| 75 | echo "\n"; |
||
| 76 | } |
||
| 77 | else if ($uuid == 'ffffffffffffffffffffffffffffffff') { |
||
| 78 | echo sprintf("%-32s %s\n", "Special Use:", "Max UUID"); |
||
| 79 | echo "\n"; |
||
| 80 | } |
||
| 81 | |||
| 3 | daniel-mar | 82 | switch ($variant) { |
| 83 | case 0: |
||
| 34 | daniel-mar | 84 | echo sprintf("%-32s %s\n", "Variant:", "[0b0__] Network Computing System (NCS)"); |
| 3 | daniel-mar | 85 | |
| 86 | /* |
||
| 87 | * Internal structure of variant #0 UUIDs |
||
| 88 | * |
||
| 89 | * The first 6 octets are the number of 4 usec units of time that have |
||
| 90 | * passed since 1/1/80 0000 GMT. The next 2 octets are reserved for |
||
| 91 | * future use. The next octet is an address family. The next 7 octets |
||
| 92 | * are a host ID in the form allowed by the specified address family. |
||
| 93 | * |
||
| 94 | * Note that while the family field (octet 8) was originally conceived |
||
| 95 | * of as being able to hold values in the range [0..255], only [0..13] |
||
| 96 | * were ever used. Thus, the 2 MSB of this field are always 0 and are |
||
| 97 | * used to distinguish old and current UUID forms. |
||
| 98 | */ |
||
| 99 | |||
| 34 | daniel-mar | 100 | /* |
| 101 | Variant 0 UUID |
||
| 102 | - 32 bit High Time |
||
| 103 | - 16 bit Low Time |
||
| 104 | - 16 bit Reserved |
||
| 105 | - 1 bit Variant (fix 0b0) |
||
| 106 | - 7 bit Family |
||
| 107 | - 56 bit Node |
||
| 108 | */ |
||
| 109 | |||
| 3 | daniel-mar | 110 | // Example of an UUID: 333a2276-0000-0000-0d00-00809c000000 |
| 111 | |||
| 34 | daniel-mar | 112 | // TODO: also show legacy format, e.g. 458487b55160.02.c0.64.02.03.00.00.00 |
| 3 | daniel-mar | 113 | |
| 34 | daniel-mar | 114 | # see also some notes at See https://github.com/cjsv/uuid/blob/master/Doc |
| 115 | |||
| 116 | /* |
||
| 117 | NOTE: A generator is not possible, because there are no timestamps left! |
||
| 118 | The last possible timestamp was: |
||
| 119 | [0xFFFFFFFFFFFF] 2015-09-05 05:58:26'210655 GMT |
||
| 120 | That is in the following UUID: |
||
| 121 | ffffffff-ffff-0000-027f-000001000000 |
||
| 122 | Current timestamp generator: |
||
| 123 | echo dechex(round((microtime(true)+315532800)*250000)); |
||
| 124 | */ |
||
| 125 | |||
| 3 | daniel-mar | 126 | # Timestamp: Count of 4us intervals since 01 Jan 1980 00:00:00 GMT |
| 127 | # 1/0,000004 = 250000 |
||
| 128 | # Seconds between 1970 and 1980 : 315532800 |
||
| 129 | # 250000*315532800=78883200000000 |
||
| 130 | $timestamp = substr($uuid, 0, 12); |
||
| 131 | $ts = gmp_init($timestamp, 16); |
||
| 34 | daniel-mar | 132 | $ts = gmp_add($ts, gmp_init("78883200000000", 10)); |
| 133 | $ms = gmp_mod($ts, gmp_init("250000", 10)); |
||
| 134 | $ts = gmp_div($ts, gmp_init("250000", 10)); |
||
| 135 | $ts = gmp_strval($ts, 10); |
||
| 136 | $ms = gmp_strval($ms, 10); |
||
| 137 | $ts = gmdate('Y-m-d H:i:s', intval($ts))."'".str_pad($ms, 6/*us*/, '0', STR_PAD_LEFT).' GMT'; |
||
| 138 | echo sprintf("%-32s %s\n", "Timestamp:", "[0x$timestamp] $ts"); |
||
| 3 | daniel-mar | 139 | |
| 140 | $reserved = substr($uuid, 12, 4); |
||
| 34 | daniel-mar | 141 | echo sprintf("%-32s %s\n", "Reserved:", "[0x$reserved]"); |
| 3 | daniel-mar | 142 | |
| 143 | $family_hex = substr($uuid, 16, 2); |
||
| 144 | $family_dec = hexdec($family_hex); |
||
| 34 | daniel-mar | 145 | $nodeid_hex = substr($uuid, 18, 14); |
| 146 | $nodeid_dec = hexdec($nodeid_hex); |
||
| 147 | |||
| 148 | // Sources: |
||
| 149 | // - https://bitsavers.org/pdf/ibm/rs6000/aix_3.0/SC23-2206-0_AIX_Version_3_for_RS6000_Communications_Programming_Concepts_199003.pdf |
||
| 150 | // - (For comparison) https://github.com/uuid6/uuid6-ietf-draft/issues/26#issuecomment-1062164457 |
||
| 151 | // - (For comparison) https://learn.microsoft.com/en-us/dotnet/api/system.net.sockets.addressfamily?view=net-7.0 [numbers 0..13 are mostly identical] |
||
| 152 | |||
| 153 | if ($family_dec == 0) { |
||
| 154 | # Microsoft's AdressFamily: Unspecified 0 Unspecified address family. |
||
| 155 | # AIX 3.0 Manual: 0 unspec = Unspecified |
||
| 156 | $family_name = 'socket_$unspec (Unspecified)'; |
||
| 157 | $nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
||
| 158 | } |
||
| 159 | else if ($family_dec == 1) { |
||
| 160 | # Microsoft's AdressFamily: Unix 1 Unix local to host address. |
||
| 161 | # AIX 3.0 Manual: 1 unix = Local to host (pipes, portals) |
||
| 162 | $family_name = 'socket_$unix (Local to host, e.g. pipes, portals)'; |
||
| 163 | $nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
||
| 164 | } |
||
| 165 | else if ($family_dec == 2) { |
||
| 166 | # Microsoft's AdressFamily: InterNetwork 2 Address for IP version 4. |
||
| 167 | # AIX 3.0 Manual: 2 ip = Internet Protocols |
||
| 168 | $family_name = 'socket_$internet (Internet Protocols, e.g. IPv4)'; |
||
| 169 | // 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 |
||
| 170 | // := [ |
||
| 171 | // time_high := 16#458487df, |
||
| 172 | // time_low := 16#9fb2, |
||
| 173 | // reserved := 16#000, |
||
| 174 | // family := chr(16#02), |
||
| 175 | // host := [chr(16#c0), chr(16#64), chr(16#02), chr(16#03), |
||
| 176 | // chr(16#00), chr(16#00), chr(16#00)] |
||
| 177 | // ] |
||
| 178 | // This means that the IP address is 32 bits hex, and 32 bits are unused |
||
| 179 | $nodeid_desc = hexdec(substr($nodeid_hex,0,2)).'.'. |
||
| 180 | hexdec(substr($nodeid_hex,2,2)).'.'. |
||
| 181 | hexdec(substr($nodeid_hex,4,2)).'.'. |
||
| 182 | hexdec(substr($nodeid_hex,6,2)); |
||
| 183 | $rest = substr($nodeid_hex,8,6); |
||
| 184 | if ($rest != '000000') $nodeid_desc .= " + unexpected rest 0x$rest"; |
||
| 185 | } |
||
| 186 | else if ($family_dec == 3) { |
||
| 187 | # Microsoft's AdressFamily: ImpLink 3 ARPANET IMP address. |
||
| 188 | # AIX 3.0 Manual: 3 implink = ARPANET imp addresses |
||
| 189 | $family_name = 'socket_$implink (ARPANET imp addresses)'; |
||
| 190 | $nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
||
| 191 | } |
||
| 192 | else if ($family_dec == 4) { |
||
| 193 | # Microsoft's AdressFamily: Pup 4 Address for PUP protocols. |
||
| 194 | # AIX 3.0 Manual: 4 pup = Pup protocols (for example, BSP) |
||
| 195 | $family_name = 'socket_$pup (Pup protocols, e.g. BSP)'; |
||
| 196 | $nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
||
| 197 | } |
||
| 198 | else if ($family_dec == 5) { |
||
| 199 | # Microsoft's AdressFamily: Chaos 5 Address for MIT CHAOS protocols. |
||
| 200 | # AIX 3.0 Manual: 5 chaos = MIT CHAOS protocols |
||
| 201 | $family_name = 'socket_$chaos (MIT CHAOS protocols)'; |
||
| 202 | $nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
||
| 203 | } |
||
| 204 | else if ($family_dec == 6) { |
||
| 205 | # Microsoft's AdressFamily: NS 6 Address for Xerox NS protocols. |
||
| 206 | # Microsoft's AdressFamily: Ipx 6 IPX or SPX address. |
||
| 207 | # AIX 3.0 Manual: 6 ns = XEROX NS protocols |
||
| 208 | $family_name = 'socket_$ns (XEROX NS protocols)'; |
||
| 209 | $nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
||
| 210 | } |
||
| 211 | else if ($family_dec == 7) { |
||
| 212 | # Microsoft's AdressFamily: Osi 7 Address for OSI protocols. |
||
| 213 | # Microsoft's AdressFamily: Iso 7 Address for ISO protocols. |
||
| 214 | # AIX 3.0 Manual: 7 nbs = NBS protocols |
||
| 215 | $family_name = 'socket_$nbs (NBS protocols)'; |
||
| 216 | $nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
||
| 217 | } |
||
| 218 | else if ($family_dec == 8) { |
||
| 219 | # Microsoft's AdressFamily: Ecma 8 European Computer Manufacturers Association (ECMA) address. |
||
| 220 | # AIX 3.0 Manual: 8 ecma = European computer manufacturers |
||
| 221 | $family_name = 'socket_$ecma (European computer manufacturers protocols)'; |
||
| 222 | $nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
||
| 223 | } |
||
| 224 | else if ($family_dec == 9) { |
||
| 225 | # Microsoft's AdressFamily: DataKit 9 Address for Datakit protocols. |
||
| 226 | # AIX 3.0 Manual: 9 datakit = Datakit protocols |
||
| 227 | $family_name = 'socket_$datakit (Datakit protocols)'; |
||
| 228 | $nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
||
| 229 | } |
||
| 230 | else if ($family_dec == 10) { |
||
| 231 | # Microsoft's AdressFamily: Ccitt 10 Addresses for CCITT protocols, such as X.25. |
||
| 232 | # AIX 3.0 Manual: A ccitt = CCITT protocols (for example, X.25) |
||
| 233 | $family_name = 'socket_$ccitt (CCITT protocols, e.g. X.25)'; |
||
| 234 | $nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
||
| 235 | } |
||
| 236 | else if ($family_dec == 11) { |
||
| 237 | # Microsoft's AdressFamily: Sna 11 IBM SNA address. |
||
| 238 | # AIX 3.0 Manual: B sna = IBM SNA |
||
| 239 | $family_name = 'socket_$sna (IBM SNA)'; |
||
| 240 | $nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
||
| 241 | } |
||
| 242 | else if ($family_dec == 12) { |
||
| 243 | # Microsoft's AdressFamily: DecNet 12 DECnet address. |
||
| 244 | # AIX 3.0 Manual: C unspec2 = Unspecified |
||
| 245 | $family_name = 'socket_$unspec2 (Unspecified)'; |
||
| 246 | $nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
||
| 247 | } |
||
| 248 | else if ($family_dec == 13) { |
||
| 249 | # Microsoft's AdressFamily: DataLink 13 Direct data-link interface address. |
||
| 250 | # AIX 3.0 Manual: D dds = Domain DDS protocol |
||
| 251 | # Some also call this "Data Link" ... Is that correct? |
||
| 252 | $family_name = 'socket_$dds (Domain DDS protocol)'; |
||
| 253 | // 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 |
||
| 254 | // = { 0x34dc23af, |
||
| 255 | // 0xf000, |
||
| 256 | // 0x0000, |
||
| 257 | // 0x0d, |
||
| 258 | // {0x00, 0x00, 0x7c, 0x5f, 0x00, 0x00, 0x00} }; |
||
| 259 | // https://github.com/cjsv/uuid/blob/master/Doc writes: |
||
| 260 | // "Family 13 (dds) looks like node is 00 | nnnnnn 000000." |
||
| 261 | |||
| 262 | $nodeid_desc = ''; |
||
| 263 | |||
| 264 | $start = substr($nodeid_hex,0,2); |
||
| 265 | if ($start != '00') $nodeid_desc .= "unexpected start 0x$start + "; |
||
| 266 | |||
| 267 | $nodeid_desc .= ($nodeid_dec >> 24) & 0xFFFFFF; |
||
| 268 | |||
| 269 | $rest = substr($nodeid_hex,8,6); |
||
| 270 | if ($rest != '000000') $nodeid_desc .= " + unexpected rest 0x$rest"; |
||
| 3 | daniel-mar | 271 | } else { |
| 34 | daniel-mar | 272 | $family_name = "Unknown (Family $family_dec)"; # There are probably no more families |
| 273 | $nodeid_desc = "Unknown"; |
||
| 3 | daniel-mar | 274 | } |
| 34 | daniel-mar | 275 | echo sprintf("%-32s %s\n", "Family:", "[0x$family_hex] $family_name"); |
| 3 | daniel-mar | 276 | |
| 34 | daniel-mar | 277 | echo sprintf("%-32s %s\n", "Node ID:", "[0x$nodeid_hex] $nodeid_desc"); |
| 3 | daniel-mar | 278 | |
| 279 | break; |
||
| 280 | case 1: |
||
| 34 | daniel-mar | 281 | // 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 |
| 3 | daniel-mar | 282 | |
| 283 | $version = hexdec(substr($uuid, 12, 1)); |
||
| 34 | daniel-mar | 284 | |
| 285 | if ($version <= 2) { |
||
| 286 | echo sprintf("%-32s %s\n", "Variant:", "[0b10_] RFC 4122 (Leach-Mealling-Salz) / DCE 1.1"); |
||
| 287 | } else if (($version >= 3) && ($version <= 5)) { |
||
| 288 | echo sprintf("%-32s %s\n", "Variant:", "[0b10_] RFC 4122 (Leach-Mealling-Salz)"); |
||
| 289 | } else if (($version >= 6) && ($version <= 8)) { |
||
| 290 | echo sprintf("%-32s %s\n", "Variant:", "[0b10_] RFC 4122bis (Leach-Mealling-Peabody-Davis)"); |
||
| 291 | } else { |
||
| 292 | echo sprintf("%-32s %s\n", "Variant:", "[0b10_] RFC 4122 ?"); |
||
| 293 | } |
||
| 294 | |||
| 3 | daniel-mar | 295 | switch ($version) { |
| 34 | daniel-mar | 296 | case 6: |
| 297 | /* |
||
| 298 | Variant 1, Version 6 UUID |
||
| 299 | - 48 bit High Time |
||
| 300 | - 4 bit Version (fix 0x6) |
||
| 301 | - 12 bit Low Time |
||
| 302 | - 2 bit Variant (fix 0b10) |
||
| 303 | - 6 bit Clock Sequence High |
||
| 304 | - 8 bit Clock Sequence Low |
||
| 305 | - 48 bit MAC Address |
||
| 306 | */ |
||
| 307 | echo sprintf("%-32s %s\n", "Version:", "[6] Reordered Time"); |
||
| 308 | $uuid = substr($uuid, 0, 8).'-'. |
||
| 309 | substr($uuid, 8, 4).'-'. |
||
| 310 | substr($uuid, 12, 4).'-'. |
||
| 311 | substr($uuid, 16, 4).'-'. |
||
| 312 | substr($uuid, 20, 12); |
||
| 313 | $uuid = uuid6_to_uuid1($uuid); |
||
| 314 | $uuid = str_replace('-', '', $uuid); |
||
| 315 | |||
| 316 | /* fallthrough */ |
||
| 3 | daniel-mar | 317 | case 1: |
| 34 | daniel-mar | 318 | /* |
| 319 | Variant 1, Version 1 UUID |
||
| 320 | - 32 bit Low Time |
||
| 321 | - 16 bit Mid Time |
||
| 322 | - 4 bit Version (fix 0x1) |
||
| 323 | - 12 bit High Time |
||
| 324 | - 2 bit Variant (fix 0b10) |
||
| 325 | - 6 bit Clock Sequence High |
||
| 326 | - 8 bit Clock Sequence Low |
||
| 327 | - 48 bit MAC Address |
||
| 328 | */ |
||
| 3 | daniel-mar | 329 | |
| 34 | daniel-mar | 330 | if ($version == 1) echo sprintf("%-32s %s\n", "Version:", "[1] Time-based with unique host identifier"); |
| 331 | |||
| 3 | daniel-mar | 332 | # Timestamp: Count of 100ns intervals since 15 Oct 1582 00:00:00 |
| 333 | # 1/0,0000001 = 10000000 |
||
| 334 | $timestamp = substr($uuid, 13, 3).substr($uuid, 8, 4).substr($uuid, 0, 8); |
||
| 335 | $ts = gmp_init($timestamp, 16); |
||
| 34 | daniel-mar | 336 | $ts = gmp_sub($ts, gmp_init("122192928000000000", 10)); |
| 337 | $ms = gmp_mod($ts, gmp_init("10000000", 10)); |
||
| 338 | $ts = gmp_div($ts, gmp_init("10000000", 10)); |
||
| 339 | $ts = gmp_strval($ts, 10); |
||
| 340 | $ms = gmp_strval($ms, 10); |
||
| 341 | $ts = gmdate('Y-m-d H:i:s', intval($ts))."'".str_pad($ms, 7/*0.1us*/, '0', STR_PAD_LEFT).' GMT'; |
||
| 342 | echo sprintf("%-32s %s\n", "Timestamp:", "[0x$timestamp] $ts"); |
||
| 3 | daniel-mar | 343 | |
| 344 | $x = hexdec(substr($uuid, 16, 4)); |
||
| 9 | daniel-mar | 345 | $dec = $x & 0x3FFF; // The highest 2 bits are used by "variant" (10x) |
| 346 | $hex = substr($uuid, 16, 4); |
||
| 34 | daniel-mar | 347 | echo sprintf("%-32s %s\n", "Clock ID:", "[0x$hex] $dec"); |
| 3 | daniel-mar | 348 | |
| 349 | $x = substr($uuid, 20, 12); |
||
| 350 | $nodeid = ''; |
||
| 351 | for ($i=0; $i<6; $i++) { |
||
| 352 | $nodeid .= substr($x, $i*2, 2); |
||
| 34 | daniel-mar | 353 | if ($i != 5) $nodeid .= '-'; |
| 3 | daniel-mar | 354 | } |
| 34 | daniel-mar | 355 | $nodeid = strtoupper($nodeid); |
| 356 | echo sprintf("%-32s %s\n", "Node ID:", "[0x$x] $nodeid"); |
||
| 3 | daniel-mar | 357 | |
| 358 | if (function_exists('decode_mac')) { |
||
| 34 | daniel-mar | 359 | echo "\nIn case that this Node ID is a MAC address, here is the interpretation of that MAC address:\n\n"; |
| 360 | decode_mac(strtoupper($nodeid)); |
||
| 3 | daniel-mar | 361 | } |
| 362 | |||
| 363 | break; |
||
| 364 | case 2: |
||
| 34 | daniel-mar | 365 | /* |
| 366 | Variant 1, Version 2 UUID |
||
| 367 | - 32 bit Local Domain Number |
||
| 368 | - 16 bit Mid Time |
||
| 369 | - 4 bit Version (fix 0x2) |
||
| 370 | - 12 bit High Time |
||
| 371 | - 2 bit Variant (fix 0b10) |
||
| 372 | - 6 bit Clock Sequence |
||
| 373 | - 8 bit Local Domain |
||
| 374 | - 48 bit MAC Address |
||
| 375 | */ |
||
| 3 | daniel-mar | 376 | |
| 34 | daniel-mar | 377 | // see also https://unicorn-utterances.com/posts/what-happened-to-uuid-v2 |
| 3 | daniel-mar | 378 | |
| 34 | daniel-mar | 379 | echo sprintf("%-32s %s\n", "Version:", "[2] DCE Security version"); |
| 380 | |||
| 3 | daniel-mar | 381 | # 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". |
| 9 | daniel-mar | 382 | $x = substr($uuid, 18, 2); |
| 34 | daniel-mar | 383 | if ($x == '00') $domain_info = 'Person (POSIX: User-ID)'; |
| 384 | else if ($x == '01') $domain_info = 'Group (POSIX: Group-ID)'; |
||
| 385 | else if ($x == '02') $domain_info = 'Organization'; |
||
| 386 | else $domain_info = 'site-defined (Domain '.hexdec($x).')'; |
||
| 387 | echo sprintf("%-32s %s\n", "Local Domain:", "[0x$x] $domain_info"); |
||
| 3 | daniel-mar | 388 | |
| 34 | daniel-mar | 389 | # 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. |
| 390 | $x = substr($uuid, 0, 8); |
||
| 391 | $dec = hexdec($x); |
||
| 392 | echo sprintf("%-32s %s\n", "Local Domain Number:", "[0x$x] $dec"); |
||
| 393 | |||
| 3 | daniel-mar | 394 | # Timestamp: Count of 100ns intervals since 15 Oct 1582 00:00:00 |
| 395 | # 1/0,0000001 = 10000000 |
||
| 9 | daniel-mar | 396 | $timestamp = substr($uuid, 13, 3).substr($uuid, 8, 4).'00000000'; |
| 3 | daniel-mar | 397 | $ts = gmp_init($timestamp, 16); |
| 34 | daniel-mar | 398 | $ts = gmp_sub($ts, gmp_init("122192928000000000", 10)); |
| 399 | $ms = gmp_mod($ts, gmp_init("10000000", 10)); |
||
| 400 | $ts = gmp_div($ts, gmp_init("10000000", 10)); |
||
| 401 | $ts = gmp_strval($ts, 10); |
||
| 402 | $ms = gmp_strval($ms, 10); |
||
| 403 | $ts_min = gmdate('Y-m-d H:i:s', intval($ts))."'".str_pad($ms, 7/*0.1us*/, '0', STR_PAD_LEFT).' GMT'; |
||
| 3 | daniel-mar | 404 | |
| 9 | daniel-mar | 405 | $timestamp = substr($uuid, 13, 3).substr($uuid, 8, 4).'FFFFFFFF'; |
| 406 | $ts = gmp_init($timestamp, 16); |
||
| 34 | daniel-mar | 407 | $ts = gmp_sub($ts, gmp_init("122192928000000000", 10)); |
| 408 | $ms = gmp_mod($ts, gmp_init("10000000", 10)); |
||
| 409 | $ts = gmp_div($ts, gmp_init("10000000", 10)); |
||
| 410 | $ts = gmp_strval($ts, 10); |
||
| 411 | $ms = gmp_strval($ms, 10); |
||
| 412 | $ts_max = gmdate('Y-m-d H:i:s', intval($ts))."'".str_pad($ms, 7/*0.1us*/, '0', STR_PAD_LEFT).' GMT'; |
||
| 3 | daniel-mar | 413 | |
| 34 | daniel-mar | 414 | $timestamp = substr($uuid, 13, 3).substr($uuid, 8, 4)/*.'xxxxxxxx'*/; |
| 415 | echo sprintf("%-32s %s\n", "Timestamp:", "[0x$timestamp] $ts_min - $ts_max"); |
||
| 9 | daniel-mar | 416 | |
| 34 | daniel-mar | 417 | $x = hexdec(substr($uuid, 16, 2)); |
| 418 | $dec = $x & 0x3F; // The highest 2 bits are used by "variant" (10xx) |
||
| 419 | $hex = substr($uuid, 16, 2); |
||
| 420 | echo sprintf("%-32s %s\n", "Clock ID:", "[0x$hex] $dec"); |
||
| 9 | daniel-mar | 421 | |
| 3 | daniel-mar | 422 | $x = substr($uuid, 20, 12); |
| 423 | $nodeid = ''; |
||
| 424 | for ($i=0; $i<6; $i++) { |
||
| 425 | $nodeid .= substr($x, $i*2, 2); |
||
| 34 | daniel-mar | 426 | if ($i != 5) $nodeid .= '-'; |
| 3 | daniel-mar | 427 | } |
| 34 | daniel-mar | 428 | $nodeid = strtoupper($nodeid); |
| 429 | echo sprintf("%-32s %s\n", "Node ID:", "[0x$x] $nodeid"); |
||
| 3 | daniel-mar | 430 | |
| 431 | if (function_exists('decode_mac')) { |
||
| 34 | daniel-mar | 432 | echo "\nIn case that this Node ID is a MAC address, here is the interpretation of that MAC address:\n\n"; |
| 433 | decode_mac(strtoupper($nodeid)); |
||
| 3 | daniel-mar | 434 | } |
| 435 | |||
| 436 | break; |
||
| 437 | case 3: |
||
| 34 | daniel-mar | 438 | /* |
| 439 | Variant 1, Version 3 UUID |
||
| 440 | - 48 bit Hash High |
||
| 441 | - 4 bit Version (fix 0x3) |
||
| 442 | - 12 bit Hash Mid |
||
| 443 | - 2 bit Variant (fix 0b10) |
||
| 444 | - 62 bit Hash Low |
||
| 445 | */ |
||
| 3 | daniel-mar | 446 | |
| 34 | daniel-mar | 447 | echo sprintf("%-32s %s\n", "Version:", "[3] Name-based (MD5 hash)"); |
| 448 | |||
| 9 | daniel-mar | 449 | $hash = str_replace('-', '', strtolower($uuid)); |
| 34 | daniel-mar | 450 | |
| 9 | daniel-mar | 451 | $hash[12] = '?'; // was overwritten by version |
| 34 | daniel-mar | 452 | |
| 453 | $var16a = strtoupper(dechex(hexdec($hash[16]) & 0b0011 | 0b0000)); |
||
| 454 | $var16b = strtoupper(dechex(hexdec($hash[16]) & 0b0011 | 0b0100)); |
||
| 455 | $var16c = strtoupper(dechex(hexdec($hash[16]) & 0b0011 | 0b1000)); |
||
| 456 | $var16d = strtoupper(dechex(hexdec($hash[16]) & 0b0011 | 0b1100)); |
||
| 9 | daniel-mar | 457 | $hash[16] = '?'; // was partially overwritten by variant |
| 3 | daniel-mar | 458 | |
| 34 | daniel-mar | 459 | echo sprintf("%-32s %s\n", "MD5(Namespace+Subject):", "[0x$hash]"); |
| 460 | echo sprintf("%-32s %s\n", "", " ^"); |
||
| 461 | echo sprintf("%-32s %s\n", "", " $var16a, $var16b, $var16c, or $var16d"); |
||
| 9 | daniel-mar | 462 | |
| 3 | daniel-mar | 463 | break; |
| 464 | case 4: |
||
| 34 | daniel-mar | 465 | /* |
| 466 | Variant 1, Version 4 UUID |
||
| 467 | - 48 bit Random High |
||
| 468 | - 4 bit Version (fix 0x4) |
||
| 469 | - 12 bit Random Mid |
||
| 470 | - 2 bit Variant (fix 0b10) |
||
| 471 | - 62 bit Random Low |
||
| 472 | */ |
||
| 3 | daniel-mar | 473 | |
| 34 | daniel-mar | 474 | echo sprintf("%-32s %s\n", "Version:", "[4] Random"); |
| 475 | |||
| 476 | $rand_line1 = ''; |
||
| 477 | $rand_line2 = ''; |
||
| 3 | daniel-mar | 478 | for ($i=0; $i<16; $i++) { |
| 479 | $bin = base_convert(substr($uuid, $i*2, 2), 16, 2); |
||
| 480 | $bin = str_pad($bin, 8, "0", STR_PAD_LEFT); |
||
| 481 | |||
| 482 | if ($i == 6) { |
||
| 34 | daniel-mar | 483 | // was overwritten by version |
| 484 | $bin[0] = '?'; |
||
| 485 | $bin[1] = '?'; |
||
| 486 | $bin[2] = '?'; |
||
| 487 | $bin[3] = '?'; |
||
| 3 | daniel-mar | 488 | } else if ($i == 8) { |
| 34 | daniel-mar | 489 | // was partially overwritten by variant |
| 490 | $bin[0] = '?'; |
||
| 491 | $bin[1] = '?'; |
||
| 3 | daniel-mar | 492 | } |
| 493 | |||
| 34 | daniel-mar | 494 | if ($i<8) $rand_line1 .= "$bin "; |
| 495 | if ($i>=8) $rand_line2 .= "$bin "; |
||
| 3 | daniel-mar | 496 | } |
| 34 | daniel-mar | 497 | echo sprintf("%-32s %s\n", "Random bits:", trim($rand_line1)); |
| 498 | echo sprintf("%-32s %s\n", "", trim($rand_line2)); |
||
| 3 | daniel-mar | 499 | |
| 34 | daniel-mar | 500 | $rand_bytes = str_replace('-', '', strtolower($uuid)); |
| 501 | $rand_bytes[12] = '?'; // was overwritten by version |
||
| 502 | $var16a = strtoupper(dechex(hexdec($rand_bytes[16]) & 0b0011 | 0b0000)); |
||
| 503 | $var16b = strtoupper(dechex(hexdec($rand_bytes[16]) & 0b0011 | 0b0100)); |
||
| 504 | $var16c = strtoupper(dechex(hexdec($rand_bytes[16]) & 0b0011 | 0b1000)); |
||
| 505 | $var16d = strtoupper(dechex(hexdec($rand_bytes[16]) & 0b0011 | 0b1100)); |
||
| 506 | $rand_bytes[16] = '?'; // was partially overwritten by variant |
||
| 507 | echo sprintf("%-32s %s\n", "Random bytes:", "[0x$rand_bytes]"); |
||
| 508 | echo sprintf("%-32s %s\n", "", " ^"); |
||
| 509 | echo sprintf("%-32s %s\n", "", " $var16a, $var16b, $var16c, or $var16d"); |
||
| 3 | daniel-mar | 510 | |
| 511 | break; |
||
| 512 | case 5: |
||
| 34 | daniel-mar | 513 | /* |
| 514 | Variant 1, Version 5 UUID |
||
| 515 | - 48 bit Hash High |
||
| 516 | - 4 bit Version (fix 0x5) |
||
| 517 | - 12 bit Hash Mid |
||
| 518 | - 2 bit Variant (fix 0b10) |
||
| 519 | - 62 bit Hash Low |
||
| 520 | */ |
||
| 3 | daniel-mar | 521 | |
| 34 | daniel-mar | 522 | echo sprintf("%-32s %s\n", "Version:", "[5] Name-based (SHA-1 hash)"); |
| 523 | |||
| 9 | daniel-mar | 524 | $hash = str_replace('-', '', strtolower($uuid)); |
| 34 | daniel-mar | 525 | |
| 9 | daniel-mar | 526 | $hash[12] = '?'; // was overwritten by version |
| 34 | daniel-mar | 527 | |
| 528 | $var16a = strtoupper(dechex(hexdec($hash[16]) & 0b0011 | 0b0000)); |
||
| 529 | $var16b = strtoupper(dechex(hexdec($hash[16]) & 0b0011 | 0b0100)); |
||
| 530 | $var16c = strtoupper(dechex(hexdec($hash[16]) & 0b0011 | 0b1000)); |
||
| 531 | $var16d = strtoupper(dechex(hexdec($hash[16]) & 0b0011 | 0b1100)); |
||
| 9 | daniel-mar | 532 | $hash[16] = '?'; // was partially overwritten by variant |
| 34 | daniel-mar | 533 | |
| 9 | daniel-mar | 534 | $hash .= '????????'; // was cut off |
| 3 | daniel-mar | 535 | |
| 34 | daniel-mar | 536 | echo sprintf("%-32s %s\n", "SHA1(Namespace+Subject):", "[0x$hash]"); |
| 537 | echo sprintf("%-32s %s\n", "", " ^"); |
||
| 538 | echo sprintf("%-32s %s\n", "", " $var16a, $var16b, $var16c, or $var16d"); |
||
| 9 | daniel-mar | 539 | |
| 34 | daniel-mar | 540 | break; |
| 541 | case 7: |
||
| 542 | /* |
||
| 543 | Variant 1, Version 7 UUID |
||
| 544 | - 48 bit Unix Time in milliseconds |
||
| 545 | - 4 bit Version (fix 0x7) |
||
| 546 | - 12 bit Random |
||
| 547 | - 2 bit Variant (fix 0b10) |
||
| 548 | - 62 bit Random |
||
| 549 | */ |
||
| 9 | daniel-mar | 550 | |
| 34 | daniel-mar | 551 | echo sprintf("%-32s %s\n", "Version:", "[7] Unix Epoch Time"); |
| 552 | |||
| 553 | $timestamp = substr($uuid, 0, 12); |
||
| 554 | |||
| 555 | // Timestamp: Split into seconds and milliseconds |
||
| 556 | $ts = gmp_init($timestamp, 16); |
||
| 557 | $ms = gmp_mod($ts, gmp_init("1000", 10)); |
||
| 558 | $ts = gmp_div($ts, gmp_init("1000", 10)); |
||
| 559 | $ts = gmp_strval($ts, 10); |
||
| 560 | $ms = gmp_strval($ms, 10); |
||
| 561 | $ts = gmdate('Y-m-d H:i:s', intval($ts))."'".str_pad($ms, 3/*ms*/, '0', STR_PAD_LEFT).' GMT'; |
||
| 562 | echo sprintf("%-32s %s\n", "Timestamp:", "[0x$timestamp] $ts"); |
||
| 563 | |||
| 564 | $rand = ''; |
||
| 565 | for ($i=6; $i<16; $i++) { |
||
| 566 | $bin = base_convert(substr($uuid, $i*2, 2), 16, 2); |
||
| 567 | $bin = str_pad($bin, 8, "0", STR_PAD_LEFT); |
||
| 568 | |||
| 569 | if ($i == 6) { |
||
| 570 | // was overwritten by version |
||
| 571 | $bin[0] = '?'; |
||
| 572 | $bin[1] = '?'; |
||
| 573 | $bin[2] = '?'; |
||
| 574 | $bin[3] = '?'; |
||
| 575 | } else if ($i == 8) { |
||
| 576 | // was partially overwritten by variant |
||
| 577 | $bin[0] = '?'; |
||
| 578 | $bin[1] = '?'; |
||
| 579 | } |
||
| 580 | |||
| 581 | $rand .= "$bin "; |
||
| 582 | } |
||
| 583 | echo sprintf("%-32s %s\n", "Random bits:", trim($rand)); |
||
| 584 | |||
| 585 | $rand_bytes = substr(str_replace('-', '', strtolower($uuid)),13); |
||
| 586 | $var16a = strtoupper(dechex(hexdec($rand_bytes[3]) & 0b0011 | 0b0000)); |
||
| 587 | $var16b = strtoupper(dechex(hexdec($rand_bytes[3]) & 0b0011 | 0b0100)); |
||
| 588 | $var16c = strtoupper(dechex(hexdec($rand_bytes[3]) & 0b0011 | 0b1000)); |
||
| 589 | $var16d = strtoupper(dechex(hexdec($rand_bytes[3]) & 0b0011 | 0b1100)); |
||
| 590 | $rand_bytes[3] = '?'; // was partially overwritten by variant |
||
| 591 | echo sprintf("%-32s %s\n", "Random bytes:", "[0x$rand_bytes]"); |
||
| 592 | echo sprintf("%-32s %s\n", "", " ^"); |
||
| 593 | echo sprintf("%-32s %s\n", "", " $var16a, $var16b, $var16c, or $var16d"); |
||
| 594 | |||
| 595 | // TODO: convert to and from Base32 CROCKFORD ULID (make 2 methods in uuid_utils.inc.php) |
||
| 596 | // e.g. ULID: 01GCZ05N3JFRKBRWKNGCQZGP44 |
||
| 597 | // "Be aware that all version 7 UUIDs may be converted to ULIDs but not all ULIDs may be converted to UUIDs." |
||
| 598 | |||
| 3 | daniel-mar | 599 | break; |
| 34 | daniel-mar | 600 | case 8: |
| 601 | /* |
||
| 602 | Variant 1, Version 8 UUID |
||
| 603 | - 48 bit Custom data |
||
| 604 | - 4 bit Version (fix 0x8) |
||
| 605 | - 12 bit Custom data |
||
| 606 | - 2 bit Variant (fix 0b10) |
||
| 607 | - 62 bit Custom data |
||
| 608 | */ |
||
| 609 | |||
| 610 | echo sprintf("%-32s %s\n", "Version:", "[8] Custom implementation"); |
||
| 611 | |||
| 612 | $custom_data = substr($uuid,0,12).substr($uuid,13); // exclude version nibble |
||
| 613 | $custom_data[15] = dechex(hexdec($custom_data[15]) & 0b0011); // nibble was partially overwritten by variant |
||
| 614 | $custom_data = strtolower($custom_data); |
||
| 615 | |||
| 616 | $custom_block1 = substr($uuid, 0, 8); |
||
| 617 | $custom_block2 = substr($uuid, 8, 4); |
||
| 618 | $custom_block3 = substr($uuid, 12, 4); |
||
| 619 | $custom_block4 = substr($uuid, 16, 4); |
||
| 620 | $custom_block5 = substr($uuid, 20); |
||
| 621 | |||
| 622 | $custom_block3 = substr($custom_block3, 1); // remove version |
||
| 623 | $custom_block4[0] = dechex(hexdec($custom_block4[0]) & 0b0011); // remove variant |
||
| 624 | |||
| 625 | echo sprintf("%-32s %s\n", "Custom data:", "[0x$custom_data]"); |
||
| 626 | echo sprintf("%-32s %s\n", "Custom block1 (32 bit):", "[0x$custom_block1]"); |
||
| 627 | echo sprintf("%-32s %s\n", "Custom block2 (16 bit):", "[0x$custom_block2]"); |
||
| 628 | echo sprintf("%-32s %s\n", "Custom block3 (12 bit):", "[0x$custom_block3]"); |
||
| 629 | echo sprintf("%-32s %s\n", "Custom block4 (14 bit):", "[0x$custom_block4]"); |
||
| 630 | echo sprintf("%-32s %s\n", "Custom block5 (48 bit):", "[0x$custom_block5]"); |
||
| 631 | |||
| 632 | break; |
||
| 3 | daniel-mar | 633 | default: |
| 34 | daniel-mar | 634 | echo sprintf("%-32s %s\n", "Version:", "[$version] Unknown"); |
| 3 | daniel-mar | 635 | break; |
| 636 | } |
||
| 637 | |||
| 638 | break; |
||
| 639 | case 2: |
||
| 34 | daniel-mar | 640 | // TODO: Show byte order: 00112233-4455-6677-8899-aabbccddeeff => 33 22 11 00 55 44 77 66 88 99 aa bb cc dd ee ff |
| 641 | |||
| 642 | // TODO: Is there any scheme in that legacy Microsoft GUIDs? |
||
| 643 | echo sprintf("%-32s %s\n", "Variant:", "[0b110] Reserved for Microsoft Corporation"); |
||
| 3 | daniel-mar | 644 | break; |
| 645 | case 3: |
||
| 34 | daniel-mar | 646 | echo sprintf("%-32s %s\n", "Variant:", "[0b111] Reserved for future use"); |
| 3 | daniel-mar | 647 | break; |
| 648 | } |
||
| 34 | daniel-mar | 649 | |
| 650 | if (!$echo) { |
||
| 651 | $out = ob_get_contents(); |
||
| 652 | ob_end_clean(); |
||
| 653 | return $out; |
||
| 654 | } else { |
||
| 655 | return true; |
||
| 656 | } |
||
| 3 | daniel-mar | 657 | } |
| 658 | |||
| 659 | function uuid_canonize($uuid) { |
||
| 660 | if (!uuid_valid($uuid)) return false; |
||
| 661 | return oid_to_uuid(uuid_to_oid($uuid)); |
||
| 662 | } |
||
| 663 | |||
| 664 | function oid_to_uuid($oid) { |
||
| 665 | if (!is_uuid_oid($oid)) return false; |
||
| 666 | |||
| 27 | daniel-mar | 667 | if (substr($oid,0,1) == '.') { |
| 3 | daniel-mar | 668 | $oid = substr($oid, 1); |
| 669 | } |
||
| 670 | $ary = explode('.', $oid); |
||
| 16 | daniel-mar | 671 | |
| 672 | if (!isset($ary[2])) return false; |
||
| 673 | |||
| 3 | daniel-mar | 674 | $val = $ary[2]; |
| 675 | |||
| 676 | $x = gmp_init($val, 10); |
||
| 677 | $y = gmp_strval($x, 16); |
||
| 678 | $y = str_pad($y, 32, "0", STR_PAD_LEFT); |
||
| 679 | return substr($y, 0, 8).'-'. |
||
| 680 | substr($y, 8, 4).'-'. |
||
| 681 | substr($y, 12, 4).'-'. |
||
| 682 | substr($y, 16, 4).'-'. |
||
| 683 | substr($y, 20, 12); |
||
| 684 | } |
||
| 685 | |||
| 686 | function is_uuid_oid($oid, $only_allow_root=false) { |
||
| 27 | daniel-mar | 687 | if (substr($oid,0,1) == '.') $oid = substr($oid, 1); // remove leading dot |
| 3 | daniel-mar | 688 | |
| 689 | $ary = explode('.', $oid); |
||
| 690 | |||
| 691 | if ($only_allow_root) { |
||
| 692 | if (count($ary) != 3) return false; |
||
| 16 | daniel-mar | 693 | } else { |
| 694 | if (count($ary) < 3) return false; |
||
| 3 | daniel-mar | 695 | } |
| 696 | |||
| 9 | daniel-mar | 697 | if ($ary[0] != '2') return false; |
| 698 | if ($ary[1] != '25') return false; |
||
| 3 | daniel-mar | 699 | for ($i=2; $i<count($ary); $i++) { |
| 700 | $v = $ary[$i]; |
||
| 701 | if (!is_numeric($v)) return false; |
||
| 9 | daniel-mar | 702 | if ($i == 2) { |
| 703 | // Must be in the range of 128 bit UUID |
||
| 704 | $test = gmp_init($v, 10); |
||
| 705 | if (strlen(gmp_strval($test, 16)) > 32) return false; |
||
| 706 | } |
||
| 3 | daniel-mar | 707 | if ($v < 0) return false; |
| 708 | } |
||
| 709 | |||
| 710 | return true; |
||
| 711 | } |
||
| 712 | |||
| 713 | function uuid_to_oid($uuid) { |
||
| 714 | if (!uuid_valid($uuid)) return false; |
||
| 715 | |||
| 716 | $uuid = str_replace(array('-', '{', '}'), '', $uuid); |
||
| 717 | $x = gmp_init($uuid, 16); |
||
| 34 | daniel-mar | 718 | return '2.25.'.gmp_strval($x, 10); |
| 3 | daniel-mar | 719 | } |
| 720 | |||
| 34 | daniel-mar | 721 | function uuid_numeric_value($uuid) { |
| 722 | $oid = uuid_to_oid($uuid); |
||
| 723 | if (!$oid) return false; |
||
| 724 | return substr($oid, strlen('2.25.')); |
||
| 725 | } |
||
| 726 | |||
| 727 | function uuid_c_syntax($uuid) { |
||
| 728 | $uuid = str_replace('{', '', $uuid); |
||
| 729 | return '{ 0x' . substr($uuid, 0, 8) . |
||
| 730 | ', 0x' . substr($uuid, 9, 4) . |
||
| 731 | ', 0x' . substr($uuid, 14, 4) . |
||
| 732 | ', { 0x' . substr($uuid, 19, 2). |
||
| 733 | ', 0x' . substr($uuid, 21, 2) . |
||
| 734 | ', 0x' . substr($uuid, 24, 2) . |
||
| 735 | ', 0x' . substr($uuid, 26, 2) . |
||
| 736 | ', 0x' . substr($uuid, 28, 2) . |
||
| 737 | ', 0x' . substr($uuid, 30, 2) . |
||
| 738 | ', 0x' . substr($uuid, 32, 2) . |
||
| 739 | ', 0x' . substr($uuid, 34, 2) . ' } }'; |
||
| 740 | } |
||
| 741 | |||
| 742 | function gen_uuid($prefer_mac_address_based = true) { |
||
| 743 | $uuid = $prefer_mac_address_based ? gen_uuid_reordered()/*UUIDv6*/ : false; |
||
| 744 | if ($uuid === false) $uuid = gen_uuid_unix_epoch()/*UUIDv7*/; |
||
| 9 | daniel-mar | 745 | return $uuid; |
| 3 | daniel-mar | 746 | } |
| 747 | |||
| 34 | daniel-mar | 748 | # -------------------------------------- |
| 749 | // Variant 1, Version 1 (Time based) UUID |
||
| 750 | # -------------------------------------- |
||
| 751 | |||
| 752 | function gen_uuid_v1() { |
||
| 753 | return gen_uuid_timebased(); |
||
| 754 | } |
||
| 755 | function gen_uuid_timebased($force_php_implementation=false) { |
||
| 14 | daniel-mar | 756 | # On Debian: apt-get install php-uuid |
| 3 | daniel-mar | 757 | # extension_loaded('uuid') |
| 34 | daniel-mar | 758 | if (!$force_php_implementation && function_exists('uuid_create')) { |
| 3 | daniel-mar | 759 | # OSSP uuid extension like seen in php5-uuid at Debian 8 |
| 760 | /* |
||
| 761 | $x = uuid_create($context); |
||
| 9 | daniel-mar | 762 | uuid_make($context, UUID_MAKE_V1); |
| 3 | daniel-mar | 763 | uuid_export($context, UUID_FMT_STR, $uuid); |
| 764 | return trim($uuid); |
||
| 765 | */ |
||
| 766 | |||
| 767 | # PECL uuid extension like seen in php-uuid at Debian 9 |
||
| 9 | daniel-mar | 768 | return trim(uuid_create(UUID_TYPE_TIME)); |
| 3 | daniel-mar | 769 | } |
| 770 | |||
| 14 | daniel-mar | 771 | # On Debian: apt-get install uuid-runtime |
| 34 | daniel-mar | 772 | if (!$force_php_implementation && strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') { |
| 14 | daniel-mar | 773 | $out = array(); |
| 774 | $ec = -1; |
||
| 775 | exec('uuidgen -t 2>/dev/null', $out, $ec); |
||
| 16 | daniel-mar | 776 | if ($ec == 0) return trim($out[0]); |
| 14 | daniel-mar | 777 | } |
| 3 | daniel-mar | 778 | |
| 14 | daniel-mar | 779 | # If we hadn't any success yet, then implement the time based generation routine ourselves! |
| 780 | # Based on https://github.com/fredriklindberg/class.uuid.php/blob/master/class.uuid.php |
||
| 781 | |||
| 782 | $uuid = array( |
||
| 783 | 'time_low' => 0, /* 32-bit */ |
||
| 784 | 'time_mid' => 0, /* 16-bit */ |
||
| 785 | 'time_hi' => 0, /* 16-bit */ |
||
| 786 | 'clock_seq_hi' => 0, /* 8-bit */ |
||
| 787 | 'clock_seq_low' => 0, /* 8-bit */ |
||
| 788 | 'node' => array() /* 48-bit */ |
||
| 789 | ); |
||
| 790 | |||
| 791 | /* |
||
| 792 | * Get current time in 100 ns intervals. The magic value |
||
| 793 | * is the offset between UNIX epoch and the UUID UTC |
||
| 794 | * time base October 15, 1582. |
||
| 795 | */ |
||
| 34 | daniel-mar | 796 | if (time_nanosleep(0,100) !== true) usleep(1); // Wait 100ns, to make sure that the time part changes if multiple UUIDs are generated |
| 14 | daniel-mar | 797 | $tp = gettimeofday(); |
| 34 | daniel-mar | 798 | if (PHP_INT_SIZE == 4) { |
| 799 | $tp['sec'] = gmp_init($tp['sec'],10); |
||
| 800 | $tp['usec'] = gmp_init($tp['usec'],10); |
||
| 801 | $time = gmp_add(gmp_add(gmp_mul($tp['sec'], gmp_init('10000000',10)),gmp_mul($tp['usec'], gmp_init('10',10))),gmp_init('01B21DD213814000',16)); |
||
| 802 | $uuid['time_low'] = gmp_and($time, gmp_init('ffffffff',16)); |
||
| 803 | $high = gmp_shiftr($time,32); |
||
| 804 | $uuid['time_mid'] = gmp_and($high, gmp_init('ffff',16)); |
||
| 805 | $uuid['time_hi'] = intval(gmp_and(gmp_shiftr($high,16),gmp_init('fff',16)),10) | (1/*TimeBased*/ << 12); |
||
| 806 | } else { |
||
| 807 | $time = ($tp['sec'] * 10000000) + ($tp['usec'] * 10) + 0x01B21DD213814000; |
||
| 808 | $uuid['time_low'] = $time & 0xffffffff; |
||
| 809 | /* Work around PHP 32-bit bit-operation limits */ |
||
| 810 | $high = intval($time / 0xffffffff); |
||
| 811 | $uuid['time_mid'] = $high & 0xffff; |
||
| 812 | $uuid['time_hi'] = (($high >> 16) & 0xfff) | (1/*TimeBased*/ << 12); |
||
| 813 | } |
||
| 14 | daniel-mar | 814 | |
| 815 | /* |
||
| 816 | * We don't support saved state information and generate |
||
| 817 | * a random clock sequence each time. |
||
| 818 | */ |
||
| 34 | daniel-mar | 819 | $uuid['clock_seq_hi'] = _random_int(0, 255) & 0b00111111 | 0b10000000; // set variant to 0b10__ (RFC 4122) |
| 820 | $uuid['clock_seq_low'] = _random_int(0, 255); |
||
| 14 | daniel-mar | 821 | |
| 822 | /* |
||
| 823 | * Node should be set to the 48-bit IEEE node identifier |
||
| 824 | */ |
||
| 825 | $mac = get_mac_address(); |
||
| 826 | if ($mac) { |
||
| 34 | daniel-mar | 827 | $node = str_replace('-','',str_replace(':','',$mac)); |
| 14 | daniel-mar | 828 | for ($i = 0; $i < 6; $i++) { |
| 829 | $uuid['node'][$i] = hexdec(substr($node, $i*2, 2)); |
||
| 830 | } |
||
| 34 | daniel-mar | 831 | } else { |
| 832 | // If we cannot get a MAC address, then generate a random AAI |
||
| 833 | $uuid['node'] = explode('-', gen_aai(48, false)); |
||
| 834 | $uuid['node'] = array_map('hexdec', $uuid['node']); |
||
| 14 | daniel-mar | 835 | } |
| 836 | |||
| 34 | daniel-mar | 837 | /* |
| 838 | * Now output the UUID |
||
| 839 | */ |
||
| 840 | return sprintf( |
||
| 841 | '%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x', |
||
| 842 | ($uuid['time_low']), ($uuid['time_mid']), ($uuid['time_hi']), |
||
| 843 | $uuid['clock_seq_hi'], $uuid['clock_seq_low'], |
||
| 844 | $uuid['node'][0], $uuid['node'][1], $uuid['node'][2], |
||
| 845 | $uuid['node'][3], $uuid['node'][4], $uuid['node'][5]); |
||
| 9 | daniel-mar | 846 | } |
| 14 | daniel-mar | 847 | function get_mac_address() { |
| 848 | static $detected_mac = false; |
||
| 849 | |||
| 850 | if ($detected_mac !== false) { // false NOT null! |
||
| 851 | return $detected_mac; |
||
| 852 | } |
||
| 853 | |||
| 34 | daniel-mar | 854 | // TODO: This method get_mac_address() should actually be part of mac_utils.inc.php, but we need it |
| 14 | daniel-mar | 855 | // here, and mac_utils.inc.php shall only be optional. What to do? |
| 856 | if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') { |
||
| 857 | // Windows |
||
| 858 | $cmds = array( |
||
| 859 | "ipconfig /all", // faster |
||
| 860 | "getmac" |
||
| 861 | ); |
||
| 862 | foreach ($cmds as $cmd) { |
||
| 863 | $out = array(); |
||
| 864 | $ec = -1; |
||
| 865 | exec($cmd, $out, $ec); |
||
| 866 | if ($ec == 0) { |
||
| 867 | $out = implode("\n",$out); |
||
| 868 | $m = array(); |
||
| 34 | daniel-mar | 869 | 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)) { |
| 870 | $detected_mac = strtolower($m[1]); |
||
| 14 | daniel-mar | 871 | return $detected_mac; |
| 872 | } |
||
| 873 | } |
||
| 874 | } |
||
| 875 | } else if (strtoupper(PHP_OS) == 'DARWIN') { |
||
| 876 | // Mac OS X |
||
| 877 | $cmds = array( |
||
| 878 | "networksetup -listallhardwareports 2>/dev/null", |
||
| 879 | "netstat -i 2>/dev/null" |
||
| 880 | ); |
||
| 881 | foreach ($cmds as $cmd) { |
||
| 882 | $out = array(); |
||
| 883 | $ec = -1; |
||
| 884 | exec($cmd, $out, $ec); |
||
| 885 | if ($ec == 0) { |
||
| 886 | $out = implode("\n",$out); |
||
| 887 | $m = array(); |
||
| 888 | 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)) { |
||
| 889 | $detected_mac = $m[1]; |
||
| 890 | return $detected_mac; |
||
| 891 | } |
||
| 892 | } |
||
| 893 | } |
||
| 894 | } else { |
||
| 895 | // Linux |
||
| 27 | daniel-mar | 896 | $addresses = @glob('/sys/class/net/'.'*'.'/address'); |
| 897 | foreach ($addresses as $x) { |
||
| 14 | daniel-mar | 898 | if (!strstr($x,'/lo/')) { |
| 899 | $detected_mac = trim(file_get_contents($x)); |
||
| 34 | daniel-mar | 900 | if (substr(mac_type($detected_mac),0,6) == 'EUI-48') { |
| 901 | return $detected_mac; |
||
| 902 | } |
||
| 14 | daniel-mar | 903 | } |
| 904 | } |
||
| 905 | $cmds = array( |
||
| 906 | "netstat -ie 2>/dev/null", |
||
| 907 | "ifconfig 2>/dev/null" // only available for root (because it is in sbin) |
||
| 908 | ); |
||
| 909 | foreach ($cmds as $cmd) { |
||
| 910 | $out = array(); |
||
| 911 | $ec = -1; |
||
| 912 | exec($cmd, $out, $ec); |
||
| 913 | if ($ec == 0) { |
||
| 914 | $out = implode("\n",$out); |
||
| 915 | $m = array(); |
||
| 916 | 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)) { |
||
| 917 | $detected_mac = $m[1]; |
||
| 918 | return $detected_mac; |
||
| 919 | } |
||
| 920 | } |
||
| 921 | } |
||
| 922 | } |
||
| 923 | |||
| 924 | $detected_mac = null; |
||
| 925 | return $detected_mac; |
||
| 926 | } |
||
| 927 | |||
| 34 | daniel-mar | 928 | # -------------------------------------- |
| 929 | // Variant 1, Version 2 (DCE Security) UUID |
||
| 930 | # -------------------------------------- |
||
| 931 | |||
| 932 | define('DCE_DOMAIN_PERSON', 0); |
||
| 933 | define('DCE_DOMAIN_GROUP', 1); |
||
| 934 | define('DCE_DOMAIN_ORG', 2); |
||
| 935 | function gen_uuid_v2($domain, $id) { |
||
| 936 | return gen_uuid_dce($domain, $id); |
||
| 937 | } |
||
| 9 | daniel-mar | 938 | function gen_uuid_dce($domain, $id) { |
| 34 | daniel-mar | 939 | if (($domain ?? '') === '') throw new Exception("Domain ID missing"); |
| 940 | if (!is_numeric($domain)) throw new Exception("Invalid Domain ID"); |
||
| 941 | if (($domain < 0) || ($domain > 255)) throw new Exception("Domain ID must be in range 0..255"); |
||
| 942 | |||
| 943 | if (($id ?? '') === '') throw new Exception("ID value missing"); |
||
| 944 | if (!is_numeric($id)) throw new Exception("Invalid ID value"); |
||
| 945 | if (($id < 0) || ($id > 4294967295)) throw new Exception("ID value must be in range 0..4294967295"); |
||
| 946 | |||
| 9 | daniel-mar | 947 | # Start with a version 1 UUID |
| 948 | $uuid = gen_uuid_timebased(); |
||
| 949 | |||
| 34 | daniel-mar | 950 | # Add Domain Number |
| 9 | daniel-mar | 951 | $uuid = str_pad(dechex($id), 8, '0', STR_PAD_LEFT) . substr($uuid, 8); |
| 952 | |||
| 34 | daniel-mar | 953 | # Add Domain (this overwrites part of the clock sequence) |
| 9 | daniel-mar | 954 | $uuid = substr($uuid,0,21) . str_pad(dechex($domain), 2, '0', STR_PAD_LEFT) . substr($uuid, 23); |
| 955 | |||
| 956 | # Change version to 2 |
||
| 957 | $uuid[14] = '2'; |
||
| 958 | |||
| 959 | return $uuid; |
||
| 960 | } |
||
| 961 | |||
| 34 | daniel-mar | 962 | # -------------------------------------- |
| 963 | // Variant 1, Version 3 (MD5 name based) UUID |
||
| 964 | # -------------------------------------- |
||
| 965 | |||
| 966 | function gen_uuid_v3($namespace_uuid, $name) { |
||
| 967 | return gen_uuid_md5_namebased($namespace_uuid, $name); |
||
| 968 | } |
||
| 9 | daniel-mar | 969 | function gen_uuid_md5_namebased($namespace_uuid, $name) { |
| 34 | daniel-mar | 970 | if (($namespace_uuid ?? '') === '') throw new Exception("Namespace UUID missing"); |
| 971 | if (!uuid_valid($namespace_uuid)) throw new Exception("Invalid namespace UUID '$namespace_uuid'"); |
||
| 972 | |||
| 9 | daniel-mar | 973 | $namespace_uuid = uuid_canonize($namespace_uuid); |
| 974 | $namespace_uuid = str_replace('-', '', $namespace_uuid); |
||
| 975 | $namespace_uuid = hex2bin($namespace_uuid); |
||
| 976 | |||
| 977 | $hash = md5($namespace_uuid.$name); |
||
| 978 | $hash[12] = '3'; // Set version: 3 = MD5 |
||
| 34 | daniel-mar | 979 | $hash[16] = dechex(hexdec($hash[16]) & 0b0011 | 0b1000); // Set variant to "10xx" (RFC4122) |
| 9 | daniel-mar | 980 | |
| 981 | return substr($hash, 0, 8).'-'. |
||
| 982 | substr($hash, 8, 4).'-'. |
||
| 983 | substr($hash, 12, 4).'-'. |
||
| 984 | substr($hash, 16, 4).'-'. |
||
| 985 | substr($hash, 20, 12); |
||
| 986 | } |
||
| 987 | |||
| 34 | daniel-mar | 988 | # -------------------------------------- |
| 989 | // Variant 1, Version 4 (Random) UUID |
||
| 990 | # -------------------------------------- |
||
| 991 | |||
| 992 | function gen_uuid_v4() { |
||
| 993 | return gen_uuid_random(); |
||
| 994 | } |
||
| 9 | daniel-mar | 995 | function gen_uuid_random() { |
| 16 | daniel-mar | 996 | # On Windows: Requires |
| 997 | # extension_dir = "C:\php-8.0.3-nts-Win32-vs16-x64\ext" |
||
| 998 | # extension=com_dotnet |
||
| 34 | daniel-mar | 999 | // TODO: can we trust that com_create_guid() always outputs UUIDv4? |
| 1000 | /* |
||
| 16 | daniel-mar | 1001 | if (function_exists('com_create_guid')) { |
| 1002 | return strtolower(trim(com_create_guid(), '{}')); |
||
| 1003 | } |
||
| 34 | daniel-mar | 1004 | */ |
| 16 | daniel-mar | 1005 | |
| 14 | daniel-mar | 1006 | # On Debian: apt-get install php-uuid |
| 9 | daniel-mar | 1007 | # extension_loaded('uuid') |
| 1008 | if (function_exists('uuid_create')) { |
||
| 1009 | # OSSP uuid extension like seen in php5-uuid at Debian 8 |
||
| 1010 | /* |
||
| 1011 | $x = uuid_create($context); |
||
| 1012 | uuid_make($context, UUID_MAKE_V4); |
||
| 1013 | uuid_export($context, UUID_FMT_STR, $uuid); |
||
| 1014 | return trim($uuid); |
||
| 1015 | */ |
||
| 1016 | |||
| 1017 | # PECL uuid extension like seen in php-uuid at Debian 9 |
||
| 1018 | return trim(uuid_create(UUID_TYPE_RANDOM)); |
||
| 3 | daniel-mar | 1019 | } |
| 1020 | |||
| 14 | daniel-mar | 1021 | if (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') { |
| 1022 | # On Debian: apt-get install uuid-runtime |
||
| 1023 | $out = array(); |
||
| 1024 | $ec = -1; |
||
| 1025 | exec('uuidgen -r 2>/dev/null', $out, $ec); |
||
| 16 | daniel-mar | 1026 | if ($ec == 0) return trim($out[0]); |
| 3 | daniel-mar | 1027 | |
| 14 | daniel-mar | 1028 | # On Debian Jessie: UUID V4 (Random) |
| 1029 | if (file_exists('/proc/sys/kernel/random/uuid')) { |
||
| 16 | daniel-mar | 1030 | return trim(file_get_contents('/proc/sys/kernel/random/uuid')); |
| 14 | daniel-mar | 1031 | } |
| 3 | daniel-mar | 1032 | } |
| 1033 | |||
| 9 | daniel-mar | 1034 | # Make the UUID by ourselves |
| 1035 | # Source: http://rogerstringer.com/2013/11/15/generate-uuids-php |
||
| 1036 | return sprintf( '%04x%04x-%04x-%04x-%04x-%04x%04x%04x', |
||
| 34 | daniel-mar | 1037 | _random_int( 0, 0xffff ), _random_int( 0, 0xffff ), |
| 1038 | _random_int( 0, 0xffff ), |
||
| 1039 | _random_int( 0, 0x0fff ) | 0x4000, |
||
| 1040 | _random_int( 0, 0x3fff ) | 0x8000, |
||
| 1041 | _random_int( 0, 0xffff ), _random_int( 0, 0xffff ), _random_int( 0, 0xffff ) |
||
| 9 | daniel-mar | 1042 | ); |
| 3 | daniel-mar | 1043 | } |
| 1044 | |||
| 34 | daniel-mar | 1045 | # -------------------------------------- |
| 1046 | // Variant 1, Version 5 (SHA1 name based) UUID |
||
| 1047 | # -------------------------------------- |
||
| 1048 | |||
| 1049 | function gen_uuid_v5($namespace_uuid, $name) { |
||
| 1050 | return gen_uuid_sha1_namebased($namespace_uuid, $name); |
||
| 1051 | } |
||
| 9 | daniel-mar | 1052 | function gen_uuid_sha1_namebased($namespace_uuid, $name) { |
| 34 | daniel-mar | 1053 | if (($namespace_uuid ?? '') === '') throw new Exception("Namespace UUID missing"); |
| 1054 | if (!uuid_valid($namespace_uuid)) throw new Exception("Invalid namespace UUID '$namespace_uuid'"); |
||
| 1055 | |||
| 9 | daniel-mar | 1056 | $namespace_uuid = str_replace('-', '', $namespace_uuid); |
| 1057 | $namespace_uuid = hex2bin($namespace_uuid); |
||
| 1058 | |||
| 1059 | $hash = sha1($namespace_uuid.$name); |
||
| 1060 | $hash[12] = '5'; // Set version: 5 = SHA1 |
||
| 34 | daniel-mar | 1061 | $hash[16] = dechex(hexdec($hash[16]) & 0b0011 | 0b1000); // Set variant to "0b10__" (RFC4122/DCE1.1) |
| 9 | daniel-mar | 1062 | |
| 1063 | return substr($hash, 0, 8).'-'. |
||
| 1064 | substr($hash, 8, 4).'-'. |
||
| 1065 | substr($hash, 12, 4).'-'. |
||
| 1066 | substr($hash, 16, 4).'-'. |
||
| 1067 | substr($hash, 20, 12); |
||
| 1068 | } |
||
| 1069 | |||
| 34 | daniel-mar | 1070 | # -------------------------------------- |
| 1071 | // Variant 1, Version 6 (Reordered) UUID |
||
| 1072 | # -------------------------------------- |
||
| 1073 | |||
| 1074 | function gen_uuid_v6() { |
||
| 1075 | return gen_uuid_reordered(); |
||
| 3 | daniel-mar | 1076 | } |
| 34 | daniel-mar | 1077 | function gen_uuid_reordered() { |
| 1078 | // Start with a UUIDv1 |
||
| 1079 | $uuid = gen_uuid_timebased(); |
||
| 3 | daniel-mar | 1080 | |
| 34 | daniel-mar | 1081 | // Convert to UUIDv6 |
| 1082 | return uuid1_to_uuid6($uuid); |
||
| 3 | daniel-mar | 1083 | } |
| 34 | daniel-mar | 1084 | function uuid6_to_uuid1($hex) { |
| 1085 | $hex = uuid_canonize($hex); |
||
| 1086 | if ($hex === false) return false; |
||
| 1087 | $hex = preg_replace('@[^0-9A-F]@i', '', $hex); |
||
| 1088 | $hex = substr($hex, 7, 5). |
||
| 1089 | substr($hex, 13, 3). |
||
| 1090 | substr($hex, 3, 4). |
||
| 1091 | '1' . substr($hex, 0, 3). |
||
| 1092 | substr($hex, 16); |
||
| 1093 | return substr($hex, 0, 8).'-'. |
||
| 1094 | substr($hex, 8, 4).'-'. |
||
| 1095 | substr($hex, 12, 4).'-'. |
||
| 1096 | substr($hex, 16, 4).'-'. |
||
| 1097 | substr($hex, 20, 12); |
||
| 1098 | } |
||
| 1099 | function uuid1_to_uuid6($hex) { |
||
| 1100 | $hex = uuid_canonize($hex); |
||
| 1101 | if ($hex === false) return false; |
||
| 1102 | $hex = preg_replace('@[^0-9A-F]@i', '', $hex); |
||
| 1103 | $hex = substr($hex, 13, 3). |
||
| 1104 | substr($hex, 8, 4). |
||
| 1105 | substr($hex, 0, 5). |
||
| 1106 | '6' . substr($hex, 5, 3). |
||
| 1107 | substr($hex, 16); |
||
| 1108 | return substr($hex, 0, 8).'-'. |
||
| 1109 | substr($hex, 8, 4).'-'. |
||
| 1110 | substr($hex, 12, 4).'-'. |
||
| 1111 | substr($hex, 16, 4).'-'. |
||
| 1112 | substr($hex, 20, 12); |
||
| 1113 | } |
||
| 3 | daniel-mar | 1114 | |
| 34 | daniel-mar | 1115 | # -------------------------------------- |
| 1116 | // Variant 1, Version 7 (Unix Epoch) UUID |
||
| 1117 | # -------------------------------------- |
||
| 3 | daniel-mar | 1118 | |
| 34 | daniel-mar | 1119 | function gen_uuid_v7() { |
| 1120 | return gen_uuid_unix_epoch(); |
||
| 1121 | } |
||
| 1122 | function gen_uuid_unix_epoch() { |
||
| 1123 | // Start with an UUIDv4 |
||
| 1124 | $uuid = gen_uuid_random(); |
||
| 1125 | |||
| 1126 | // Add the timestamp |
||
| 1127 | usleep(1000); // Wait 1ms, to make sure that the time part changes if multiple UUIDs are generated |
||
| 1128 | if (function_exists('gmp_init')) { |
||
| 1129 | list($ms,$sec) = explode(' ', microtime(false)); |
||
| 1130 | $sec = gmp_init($sec, 10); |
||
| 1131 | $ms = gmp_init(substr($ms,2,3), 10); |
||
| 1132 | $unix_ts = gmp_strval(gmp_add(gmp_mul($sec, '1000'), $ms),16); |
||
| 1133 | } else { |
||
| 1134 | $unix_ts = dechex((int)round(microtime(true)*1000)); |
||
| 1135 | } |
||
| 1136 | $unix_ts = str_pad($unix_ts, 12, '0', STR_PAD_LEFT); |
||
| 1137 | for ($i=0;$i<8;$i++) $uuid[$i] = substr($unix_ts, $i, 1); |
||
| 1138 | for ($i=0;$i<4;$i++) $uuid[9+$i] = substr($unix_ts, 8+$i, 1); |
||
| 1139 | |||
| 1140 | // set version |
||
| 1141 | $uuid[14] = '7'; |
||
| 1142 | |||
| 1143 | return $uuid; |
||
| 1144 | } |
||
| 1145 | |||
| 1146 | # -------------------------------------- |
||
| 1147 | // Variant 1, Version 8 (Custom) UUID |
||
| 1148 | # -------------------------------------- |
||
| 1149 | |||
| 1150 | function gen_uuid_v8($block1_32bit, $block2_16bit, $block3_12bit, $block4_14bit, $block5_48bit) { |
||
| 1151 | return gen_uuid_custom($block1_32bit, $block2_16bit, $block3_12bit, $block4_14bit, $block5_48bit); |
||
| 1152 | } |
||
| 1153 | function gen_uuid_custom($block1_32bit, $block2_16bit, $block3_12bit, $block4_14bit, $block5_48bit) { |
||
| 1154 | if (preg_replace('@[0-9A-F]@i', '', $block1_32bit) != '') throw new Exception("Invalid data for block 1. Must be hex input"); |
||
| 1155 | if (preg_replace('@[0-9A-F]@i', '', $block2_16bit) != '') throw new Exception("Invalid data for block 2. Must be hex input"); |
||
| 1156 | if (preg_replace('@[0-9A-F]@i', '', $block3_12bit) != '') throw new Exception("Invalid data for block 3. Must be hex input"); |
||
| 1157 | if (preg_replace('@[0-9A-F]@i', '', $block4_14bit) != '') throw new Exception("Invalid data for block 4. Must be hex input"); |
||
| 1158 | if (preg_replace('@[0-9A-F]@i', '', $block5_48bit) != '') throw new Exception("Invalid data for block 5. Must be hex input"); |
||
| 1159 | |||
| 1160 | $block1 = str_pad(substr($block1_32bit, -8), 8, '0', STR_PAD_LEFT); |
||
| 1161 | $block2 = str_pad(substr($block2_16bit, -4), 4, '0', STR_PAD_LEFT); |
||
| 1162 | $block3 = str_pad(substr($block3_12bit, -4), 4, '0', STR_PAD_LEFT); |
||
| 1163 | $block4 = str_pad(substr($block4_14bit, -4), 4, '0', STR_PAD_LEFT); |
||
| 1164 | $block5 = str_pad(substr($block5_48bit,-12), 12, '0', STR_PAD_LEFT); |
||
| 1165 | |||
| 1166 | $block3[0] = '8'; // Version 8 = Custom |
||
| 1167 | $block4[0] = dechex(hexdec($block4[0]) & 0b0011 | 0b1000); // Variant 0b10__ = RFC4122 |
||
| 1168 | |||
| 1169 | return strtolower($block1.'-'.$block2.'-'.$block3.'-'.$block4.'-'.$block5); |
||
| 1170 | } |
||
| 1171 | |||
| 1172 | # -------------------------------------- |
||
| 1173 | |||
| 3 | daniel-mar | 1174 | // http://php.net/manual/de/function.hex2bin.php#113057 |
| 34 | daniel-mar | 1175 | if (!function_exists('hex2bin')) { |
| 1176 | function hex2bin($str) { |
||
| 3 | daniel-mar | 1177 | $sbin = ""; |
| 34 | daniel-mar | 1178 | $len = strlen($str); |
| 3 | daniel-mar | 1179 | for ( $i = 0; $i < $len; $i += 2 ) { |
| 34 | daniel-mar | 1180 | $sbin .= pack("H*", substr($str, $i, 2)); |
| 3 | daniel-mar | 1181 | } |
| 1182 | return $sbin; |
||
| 1183 | } |
||
| 1184 | } |
||
| 34 | daniel-mar | 1185 | |
| 1186 | // https://stackoverflow.com/questions/72127764/shift-right-left-bitwise-operators-in-php7-gmp-extension |
||
| 1187 | if (!function_exists('gmp_shiftl')) { |
||
| 1188 | function gmp_shiftl($x,$n) { // shift left |
||
| 1189 | return(gmp_mul($x,gmp_pow(2,$n))); |
||
| 1190 | } |
||
| 1191 | } |
||
| 1192 | |||
| 1193 | if (!function_exists('gmp_shiftr')) { |
||
| 1194 | function gmp_shiftr($x,$n) { // shift right |
||
| 1195 | return(gmp_div_q($x,gmp_pow(2,$n))); |
||
| 1196 | } |
||
| 1197 | } |