3,7 → 3,7 |
/* |
* UUID utils for PHP |
* Copyright 2011 - 2023 Daniel Marschall, ViaThinkSoft |
* Version 2023-04-29 |
* Version 2023-07-13 |
* |
* Licensed under the Apache License, Version 2.0 (the "License"); |
* you may not use this file except in compliance with the License. |
19,15 → 19,28 |
*/ |
|
# This library requires either the GMP extension (or BCMath if gmp_supplement.inc.php is present) |
// TODO: If we are on 64 bit PHP (PHP_INT_SIZE > 4), then replace GMP with normal PHP operations |
|
if (file_exists(__DIR__ . '/mac_utils.inc.phps')) include_once __DIR__ . '/mac_utils.inc.phps'; // optionally used for uuid_info() |
if (file_exists(__DIR__ . '/mac_utils.inc.php')) include_once __DIR__ . '/mac_utils.inc.php'; // optionally used for uuid_info() |
if (file_exists(__DIR__ . '/gmp_supplement.inc.php')) include_once __DIR__ . '/gmp_supplement.inc.php'; |
|
define('UUID_NAMEBASED_NS_DNS', '6ba7b810-9dad-11d1-80b4-00c04fd430c8'); |
define('UUID_NAMEBASED_NS_URL', '6ba7b811-9dad-11d1-80b4-00c04fd430c8'); |
define('UUID_NAMEBASED_NS_OID', '6ba7b812-9dad-11d1-80b4-00c04fd430c8'); |
define('UUID_NAMEBASED_NS_X500_DN', '6ba7b814-9dad-11d1-80b4-00c04fd430c8'); |
const UUID_NAMEBASED_NS_DNS = '6ba7b810-9dad-11d1-80b4-00c04fd430c8'; // FQDN |
const UUID_NAMEBASED_NS_URL = '6ba7b811-9dad-11d1-80b4-00c04fd430c8'; |
const UUID_NAMEBASED_NS_OID = '6ba7b812-9dad-11d1-80b4-00c04fd430c8'; |
const UUID_NAMEBASED_NS_X500_DN = '6ba7b814-9dad-11d1-80b4-00c04fd430c8'; // "DER or text encoding" according to RFC4122bis |
|
if (!function_exists('_random_int')) { |
function _random_int($min, $max) { |
// This function tries a CSRNG and falls back to a RNG if no CSRNG is available |
try { |
return random_int($min, $max); |
} catch (Exception $e) { |
return mt_rand($min, $max); |
} |
} |
} |
|
function uuid_valid($uuid) { |
$uuid = str_replace(array('-', '{', '}'), '', $uuid); |
$uuid = strtoupper($uuid); |
35,30 → 48,40 |
|
if (strlen($uuid) != 32) return false; |
|
$uuid = preg_replace('@[0-9A-F]@', '', $uuid); |
$uuid = preg_replace('@[0-9A-F]@i', '', $uuid); |
|
return ($uuid == ''); |
} |
|
# TODO: Don't echo |
function uuid_info($uuid) { |
function uuid_info($uuid, $echo=true) { |
if (!uuid_valid($uuid)) return false; |
|
if (!$echo) ob_start(); |
|
#$uuid = trim($uuid); |
# $uuid = str_replace(array('-', '{', '}'), '', $uuid); |
$uuid = strtoupper($uuid); |
$uuid = preg_replace('@[^0-9A-F]@', '', $uuid); |
$uuid = strtolower($uuid); |
$uuid = preg_replace('@[^0-9A-F]@i', '', $uuid); |
|
$x = hexdec(substr($uuid, 16, 1)); |
if ($x >= 14 /* 1110 */) $variant = 3; |
else if ($x >= 12 /* 1100 */) $variant = 2; |
else if ($x >= 8 /* 1000 */) $variant = 1; |
else if ($x >= 0 /* 0000 */) $variant = 0; |
if ($x >= 14 /* 0b1110 */) $variant = 3; |
else if ($x >= 12 /* 0b110_ */) $variant = 2; |
else if ($x >= 8 /* 0b10__ */) $variant = 1; |
else if ($x >= 0 /* 0b0___ */) $variant = 0; |
else $variant = -1; // should not happen |
|
if ($uuid == '00000000000000000000000000000000') { |
echo sprintf("%-32s %s\n", "Special Use:", "Nil UUID"); |
echo "\n"; |
} |
else if ($uuid == 'ffffffffffffffffffffffffffffffff') { |
echo sprintf("%-32s %s\n", "Special Use:", "Max UUID"); |
echo "\n"; |
} |
|
switch ($variant) { |
case 0: |
echo sprintf("%-24s %s\n", "Variant:", "[0xx] NCS (reserved for backward compatibility)"); |
echo sprintf("%-32s %s\n", "Variant:", "[0b0__] Network Computing System (NCS)"); |
|
/* |
* Internal structure of variant #0 UUIDs |
72,25 → 95,34 |
* of as being able to hold values in the range [0..255], only [0..13] |
* were ever used. Thus, the 2 MSB of this field are always 0 and are |
* used to distinguish old and current UUID forms. |
* |
* +--------------------------------------------------------------+ |
* | high 32 bits of time | 0-3 .time_high |
* +-------------------------------+------------------------------- |
* | low 16 bits of time | 4-5 .time_low |
* +-------+-----------------------+ |
* | reserved | 6-7 .reserved |
* +---------------+---------------+ |
* | family | 8 .family |
* +---------------+----------...-----+ |
* | node ID | 9-16 .node |
* +--------------------------...-----+ |
* |
*/ |
|
/* |
Variant 0 UUID |
- 32 bit High Time |
- 16 bit Low Time |
- 16 bit Reserved |
- 1 bit Variant (fix 0b0) |
- 7 bit Family |
- 56 bit Node |
*/ |
|
// Example of an UUID: 333a2276-0000-0000-0d00-00809c000000 |
|
# TODO: See https://github.com/cjsv/uuid/blob/master/Doc |
// TODO: also show legacy format, e.g. 458487b55160.02.c0.64.02.03.00.00.00 |
|
# see also some notes at See https://github.com/cjsv/uuid/blob/master/Doc |
|
/* |
NOTE: A generator is not possible, because there are no timestamps left! |
The last possible timestamp was: |
[0xFFFFFFFFFFFF] 2015-09-05 05:58:26'210655 GMT |
That is in the following UUID: |
ffffffff-ffff-0000-027f-000001000000 |
Current timestamp generator: |
echo dechex(round((microtime(true)+315532800)*250000)); |
*/ |
|
# Timestamp: Count of 4us intervals since 01 Jan 1980 00:00:00 GMT |
# 1/0,000004 = 250000 |
# Seconds between 1970 and 1980 : 315532800 |
97,193 → 129,532 |
# 250000*315532800=78883200000000 |
$timestamp = substr($uuid, 0, 12); |
$ts = gmp_init($timestamp, 16); |
$ts = gmp_add($ts, gmp_init("78883200000000")); |
$ms = gmp_mod($ts, gmp_init("250000")); |
$ts = gmp_div($ts, gmp_init("250000")); |
$ts = gmp_strval($ts); |
$ms = gmp_strval($ms); |
$ts = gmdate('Y-m-d H:i:s', intval($ts))."'".str_pad($ms, 7, '0', STR_PAD_LEFT).' GMT'; |
echo sprintf("%-24s %s\n", "Timestamp:", "[0x$timestamp] $ts"); |
$ts = gmp_add($ts, gmp_init("78883200000000", 10)); |
$ms = gmp_mod($ts, gmp_init("250000", 10)); |
$ts = gmp_div($ts, gmp_init("250000", 10)); |
$ts = gmp_strval($ts, 10); |
$ms = gmp_strval($ms, 10); |
$ts = gmdate('Y-m-d H:i:s', intval($ts))."'".str_pad($ms, 6/*us*/, '0', STR_PAD_LEFT).' GMT'; |
echo sprintf("%-32s %s\n", "Timestamp:", "[0x$timestamp] $ts"); |
|
$reserved = substr($uuid, 12, 4); |
echo sprintf("%-24s %s\n", "Reserved:", "0x$reserved"); |
echo sprintf("%-32s %s\n", "Reserved:", "[0x$reserved]"); |
|
# Family 13 (dds) looks like node is 00 | nnnnnn 000000. |
# Family 2 is presumably (ip). |
# Not sure if anything else was used. |
$family_hex = substr($uuid, 16, 2); |
$family_dec = hexdec($family_hex); |
if ($family_dec == 2) { |
$family_ = 'IP'; |
} else if ($family_dec == 13) { |
$family_ = 'DDS (Data Link)'; |
$nodeid_hex = substr($uuid, 18, 14); |
$nodeid_dec = hexdec($nodeid_hex); |
|
// Sources: |
// - https://bitsavers.org/pdf/ibm/rs6000/aix_3.0/SC23-2206-0_AIX_Version_3_for_RS6000_Communications_Programming_Concepts_199003.pdf |
// - (For comparison) https://github.com/uuid6/uuid6-ietf-draft/issues/26#issuecomment-1062164457 |
// - (For comparison) https://learn.microsoft.com/en-us/dotnet/api/system.net.sockets.addressfamily?view=net-7.0 [numbers 0..13 are mostly identical] |
|
if ($family_dec == 0) { |
# Microsoft's AdressFamily: Unspecified 0 Unspecified address family. |
# AIX 3.0 Manual: 0 unspec = Unspecified |
$family_name = 'socket_$unspec (Unspecified)'; |
$nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
} |
else if ($family_dec == 1) { |
# Microsoft's AdressFamily: Unix 1 Unix local to host address. |
# AIX 3.0 Manual: 1 unix = Local to host (pipes, portals) |
$family_name = 'socket_$unix (Local to host, e.g. pipes, portals)'; |
$nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
} |
else if ($family_dec == 2) { |
# Microsoft's AdressFamily: InterNetwork 2 Address for IP version 4. |
# AIX 3.0 Manual: 2 ip = Internet Protocols |
$family_name = 'socket_$internet (Internet Protocols, e.g. IPv4)'; |
// 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 |
// := [ |
// time_high := 16#458487df, |
// time_low := 16#9fb2, |
// reserved := 16#000, |
// family := chr(16#02), |
// host := [chr(16#c0), chr(16#64), chr(16#02), chr(16#03), |
// chr(16#00), chr(16#00), chr(16#00)] |
// ] |
// This means that the IP address is 32 bits hex, and 32 bits are unused |
$nodeid_desc = hexdec(substr($nodeid_hex,0,2)).'.'. |
hexdec(substr($nodeid_hex,2,2)).'.'. |
hexdec(substr($nodeid_hex,4,2)).'.'. |
hexdec(substr($nodeid_hex,6,2)); |
$rest = substr($nodeid_hex,8,6); |
if ($rest != '000000') $nodeid_desc .= " + unexpected rest 0x$rest"; |
} |
else if ($family_dec == 3) { |
# Microsoft's AdressFamily: ImpLink 3 ARPANET IMP address. |
# AIX 3.0 Manual: 3 implink = ARPANET imp addresses |
$family_name = 'socket_$implink (ARPANET imp addresses)'; |
$nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
} |
else if ($family_dec == 4) { |
# Microsoft's AdressFamily: Pup 4 Address for PUP protocols. |
# AIX 3.0 Manual: 4 pup = Pup protocols (for example, BSP) |
$family_name = 'socket_$pup (Pup protocols, e.g. BSP)'; |
$nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
} |
else if ($family_dec == 5) { |
# Microsoft's AdressFamily: Chaos 5 Address for MIT CHAOS protocols. |
# AIX 3.0 Manual: 5 chaos = MIT CHAOS protocols |
$family_name = 'socket_$chaos (MIT CHAOS protocols)'; |
$nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
} |
else if ($family_dec == 6) { |
# Microsoft's AdressFamily: NS 6 Address for Xerox NS protocols. |
# Microsoft's AdressFamily: Ipx 6 IPX or SPX address. |
# AIX 3.0 Manual: 6 ns = XEROX NS protocols |
$family_name = 'socket_$ns (XEROX NS protocols)'; |
$nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
} |
else if ($family_dec == 7) { |
# Microsoft's AdressFamily: Osi 7 Address for OSI protocols. |
# Microsoft's AdressFamily: Iso 7 Address for ISO protocols. |
# AIX 3.0 Manual: 7 nbs = NBS protocols |
$family_name = 'socket_$nbs (NBS protocols)'; |
$nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
} |
else if ($family_dec == 8) { |
# Microsoft's AdressFamily: Ecma 8 European Computer Manufacturers Association (ECMA) address. |
# AIX 3.0 Manual: 8 ecma = European computer manufacturers |
$family_name = 'socket_$ecma (European computer manufacturers protocols)'; |
$nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
} |
else if ($family_dec == 9) { |
# Microsoft's AdressFamily: DataKit 9 Address for Datakit protocols. |
# AIX 3.0 Manual: 9 datakit = Datakit protocols |
$family_name = 'socket_$datakit (Datakit protocols)'; |
$nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
} |
else if ($family_dec == 10) { |
# Microsoft's AdressFamily: Ccitt 10 Addresses for CCITT protocols, such as X.25. |
# AIX 3.0 Manual: A ccitt = CCITT protocols (for example, X.25) |
$family_name = 'socket_$ccitt (CCITT protocols, e.g. X.25)'; |
$nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
} |
else if ($family_dec == 11) { |
# Microsoft's AdressFamily: Sna 11 IBM SNA address. |
# AIX 3.0 Manual: B sna = IBM SNA |
$family_name = 'socket_$sna (IBM SNA)'; |
$nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
} |
else if ($family_dec == 12) { |
# Microsoft's AdressFamily: DecNet 12 DECnet address. |
# AIX 3.0 Manual: C unspec2 = Unspecified |
$family_name = 'socket_$unspec2 (Unspecified)'; |
$nodeid_desc = ''; // TODO: how to interprete the Node-ID of that family? |
} |
else if ($family_dec == 13) { |
# Microsoft's AdressFamily: DataLink 13 Direct data-link interface address. |
# AIX 3.0 Manual: D dds = Domain DDS protocol |
# Some also call this "Data Link" ... Is that correct? |
$family_name = 'socket_$dds (Domain DDS protocol)'; |
// 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 |
// = { 0x34dc23af, |
// 0xf000, |
// 0x0000, |
// 0x0d, |
// {0x00, 0x00, 0x7c, 0x5f, 0x00, 0x00, 0x00} }; |
// https://github.com/cjsv/uuid/blob/master/Doc writes: |
// "Family 13 (dds) looks like node is 00 | nnnnnn 000000." |
|
$nodeid_desc = ''; |
|
$start = substr($nodeid_hex,0,2); |
if ($start != '00') $nodeid_desc .= "unexpected start 0x$start + "; |
|
$nodeid_desc .= ($nodeid_dec >> 24) & 0xFFFFFF; |
|
$rest = substr($nodeid_hex,8,6); |
if ($rest != '000000') $nodeid_desc .= " + unexpected rest 0x$rest"; |
} else { |
$family_ = "Unknown ($family_dec)"; # There are probably no more families |
$family_name = "Unknown (Family $family_dec)"; # There are probably no more families |
$nodeid_desc = "Unknown"; |
} |
echo sprintf("%-24s %s\n", "Family:", "[0x$family_hex = $family_dec] $family_"); |
echo sprintf("%-32s %s\n", "Family:", "[0x$family_hex] $family_name"); |
|
$nodeid = substr($uuid, 18, 14); |
echo sprintf("%-24s %s\n", "Node ID:", "0x$nodeid"); |
# TODO: interprete node id (the family specifies it) |
echo sprintf("%-32s %s\n", "Node ID:", "[0x$nodeid_hex] $nodeid_desc"); |
|
break; |
case 1: |
echo sprintf("%-24s %s\n", "Variant:", "[10x] RFC 4122 (Leach-Mealling-Salz)"); |
// 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 |
|
$version = hexdec(substr($uuid, 12, 1)); |
|
if ($version <= 2) { |
echo sprintf("%-32s %s\n", "Variant:", "[0b10_] RFC 4122 (Leach-Mealling-Salz) / DCE 1.1"); |
} else if (($version >= 3) && ($version <= 5)) { |
echo sprintf("%-32s %s\n", "Variant:", "[0b10_] RFC 4122 (Leach-Mealling-Salz)"); |
} else if (($version >= 6) && ($version <= 8)) { |
echo sprintf("%-32s %s\n", "Variant:", "[0b10_] RFC 4122bis (Leach-Mealling-Peabody-Davis)"); |
} else { |
echo sprintf("%-32s %s\n", "Variant:", "[0b10_] RFC 4122 ?"); |
} |
|
switch ($version) { |
case 6: |
/* |
Variant 1, Version 6 UUID |
- 48 bit High Time |
- 4 bit Version (fix 0x6) |
- 12 bit Low Time |
- 2 bit Variant (fix 0b10) |
- 6 bit Clock Sequence High |
- 8 bit Clock Sequence Low |
- 48 bit MAC Address |
*/ |
echo sprintf("%-32s %s\n", "Version:", "[6] Reordered Time"); |
$uuid = substr($uuid, 0, 8).'-'. |
substr($uuid, 8, 4).'-'. |
substr($uuid, 12, 4).'-'. |
substr($uuid, 16, 4).'-'. |
substr($uuid, 20, 12); |
$uuid = uuid6_to_uuid1($uuid); |
$uuid = str_replace('-', '', $uuid); |
|
/* fallthrough */ |
case 1: |
echo sprintf("%-24s %s\n", "Version:", "[1] Time-based with unique random host identifier"); |
/* |
Variant 1, Version 1 UUID |
- 32 bit Low Time |
- 16 bit Mid Time |
- 4 bit Version (fix 0x1) |
- 12 bit High Time |
- 2 bit Variant (fix 0b10) |
- 6 bit Clock Sequence High |
- 8 bit Clock Sequence Low |
- 48 bit MAC Address |
*/ |
|
if ($version == 1) echo sprintf("%-32s %s\n", "Version:", "[1] Time-based with unique host identifier"); |
|
# Timestamp: Count of 100ns intervals since 15 Oct 1582 00:00:00 |
# 1/0,0000001 = 10000000 |
$timestamp = substr($uuid, 13, 3).substr($uuid, 8, 4).substr($uuid, 0, 8); |
$ts = gmp_init($timestamp, 16); |
$ts = gmp_sub($ts, gmp_init("122192928000000000")); |
$ms = gmp_mod($ts, gmp_init("10000000")); |
$ts = gmp_div($ts, gmp_init("10000000")); |
$ts = gmp_strval($ts); |
$ms = gmp_strval($ms); |
$ts = gmdate('Y-m-d H:i:s', intval($ts))."'".str_pad($ms, 7, '0', STR_PAD_LEFT).' GMT'; |
echo sprintf("%-24s %s\n", "Timestamp:", "[0x$timestamp] $ts"); |
$ts = gmp_sub($ts, gmp_init("122192928000000000", 10)); |
$ms = gmp_mod($ts, gmp_init("10000000", 10)); |
$ts = gmp_div($ts, gmp_init("10000000", 10)); |
$ts = gmp_strval($ts, 10); |
$ms = gmp_strval($ms, 10); |
$ts = gmdate('Y-m-d H:i:s', intval($ts))."'".str_pad($ms, 7/*0.1us*/, '0', STR_PAD_LEFT).' GMT'; |
echo sprintf("%-32s %s\n", "Timestamp:", "[0x$timestamp] $ts"); |
|
$x = hexdec(substr($uuid, 16, 4)); |
$dec = $x & 0x3FFF; // The highest 2 bits are used by "variant" (10x) |
$hex = substr($uuid, 16, 4); |
echo sprintf("%-24s %s\n", "Clock ID:", "[0x$hex] $dec"); |
echo sprintf("%-32s %s\n", "Clock ID:", "[0x$hex] $dec"); |
|
$x = substr($uuid, 20, 12); |
$nodeid = ''; |
for ($i=0; $i<6; $i++) { |
$nodeid .= substr($x, $i*2, 2); |
if ($i != 5) $nodeid .= ':'; |
if ($i != 5) $nodeid .= '-'; |
} |
echo sprintf("%-24s %s\n", "Node ID:", "$nodeid"); |
$nodeid = strtoupper($nodeid); |
echo sprintf("%-32s %s\n", "Node ID:", "[0x$x] $nodeid"); |
|
if (function_exists('decode_mac')) { |
echo "\nIn case that this Node ID is a MAC address, here is the interpretation of that MAC address:\n"; |
decode_mac($nodeid); |
echo "\nIn case that this Node ID is a MAC address, here is the interpretation of that MAC address:\n\n"; |
decode_mac(strtoupper($nodeid)); |
} |
|
break; |
case 2: |
echo sprintf("%-24s %s\n", "Version:", "[2] DCE Security version"); |
/* |
Variant 1, Version 2 UUID |
- 32 bit Local Domain Number |
- 16 bit Mid Time |
- 4 bit Version (fix 0x2) |
- 12 bit High Time |
- 2 bit Variant (fix 0b10) |
- 6 bit Clock Sequence |
- 8 bit Local Domain |
- 48 bit MAC Address |
*/ |
|
# 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. |
$x = substr($uuid, 0, 8); |
echo sprintf("%-24s %s\n", "Local ID:", "0x$x"); |
// see also https://unicorn-utterances.com/posts/what-happened-to-uuid-v2 |
|
echo sprintf("%-32s %s\n", "Version:", "[2] DCE Security version"); |
|
# 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". |
$x = substr($uuid, 18, 2); |
if ($x == '00') $domain_info = 'POSIX: User-ID / Non-POSIX: site-defined'; |
else if ($x == '01') $domain_info = 'POSIX: Group-ID / Non-POSIX: site-defined'; |
else $domain_info = 'site-defined'; |
echo sprintf("%-24s %s\n", "Local Domain:", "0x$x ($domain_info)"); |
if ($x == '00') $domain_info = 'Person (POSIX: User-ID)'; |
else if ($x == '01') $domain_info = 'Group (POSIX: Group-ID)'; |
else if ($x == '02') $domain_info = 'Organization'; |
else $domain_info = 'site-defined (Domain '.hexdec($x).')'; |
echo sprintf("%-32s %s\n", "Local Domain:", "[0x$x] $domain_info"); |
|
# 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. |
$x = substr($uuid, 0, 8); |
$dec = hexdec($x); |
echo sprintf("%-32s %s\n", "Local Domain Number:", "[0x$x] $dec"); |
|
# Timestamp: Count of 100ns intervals since 15 Oct 1582 00:00:00 |
# 1/0,0000001 = 10000000 |
$timestamp = substr($uuid, 13, 3).substr($uuid, 8, 4).'00000000'; |
$ts = gmp_init($timestamp, 16); |
$ts = gmp_sub($ts, gmp_init("122192928000000000")); |
$ms = gmp_mod($ts, gmp_init("10000000")); |
$ts = gmp_div($ts, gmp_init("10000000")); |
$ts = gmp_strval($ts); |
$ms = gmp_strval($ms); |
$ts_min = gmdate('Y-m-d H:i:s', intval($ts))."'".str_pad($ms, 7, '0', STR_PAD_LEFT).' GMT'; |
$ts = gmp_sub($ts, gmp_init("122192928000000000", 10)); |
$ms = gmp_mod($ts, gmp_init("10000000", 10)); |
$ts = gmp_div($ts, gmp_init("10000000", 10)); |
$ts = gmp_strval($ts, 10); |
$ms = gmp_strval($ms, 10); |
$ts_min = gmdate('Y-m-d H:i:s', intval($ts))."'".str_pad($ms, 7/*0.1us*/, '0', STR_PAD_LEFT).' GMT'; |
|
$timestamp = substr($uuid, 13, 3).substr($uuid, 8, 4).'FFFFFFFF'; |
$ts = gmp_init($timestamp, 16); |
$ts = gmp_sub($ts, gmp_init("122192928000000000")); |
$ms = gmp_mod($ts, gmp_init("10000000")); |
$ts = gmp_div($ts, gmp_init("10000000")); |
$ts = gmp_strval($ts); |
$ms = gmp_strval($ms); |
$ts_max = gmdate('Y-m-d H:i:s', intval($ts))."'".str_pad($ms, 7, '0', STR_PAD_LEFT).' GMT'; |
$ts = gmp_sub($ts, gmp_init("122192928000000000", 10)); |
$ms = gmp_mod($ts, gmp_init("10000000", 10)); |
$ts = gmp_div($ts, gmp_init("10000000", 10)); |
$ts = gmp_strval($ts, 10); |
$ms = gmp_strval($ms, 10); |
$ts_max = gmdate('Y-m-d H:i:s', intval($ts))."'".str_pad($ms, 7/*0.1us*/, '0', STR_PAD_LEFT).' GMT'; |
|
$timestamp = substr($uuid, 13, 3).substr($uuid, 8, 4).'xxxxxxxx'; |
echo sprintf("%-24s %s\n", "Timestamp:", "[0x$timestamp] $ts_min - $ts_max"); |
$timestamp = substr($uuid, 13, 3).substr($uuid, 8, 4)/*.'xxxxxxxx'*/; |
echo sprintf("%-32s %s\n", "Timestamp:", "[0x$timestamp] $ts_min - $ts_max"); |
|
$x = hexdec(substr($uuid, 16, 2).'00'); |
$dec_min = $x & 0x3FFF; // The highest 2 bits are used by "variant" (10x) |
$x = hexdec(substr($uuid, 16, 2).'FF'); |
$dec_max = $x & 0x3FFF; // The highest 2 bits are used by "variant" (10x) |
$hex = substr($uuid, 16, 2).'xx'; |
echo sprintf("%-24s %s\n", "Clock ID:", "[0x$hex] $dec_min - $dec_max"); |
$x = hexdec(substr($uuid, 16, 2)); |
$dec = $x & 0x3F; // The highest 2 bits are used by "variant" (10xx) |
$hex = substr($uuid, 16, 2); |
echo sprintf("%-32s %s\n", "Clock ID:", "[0x$hex] $dec"); |
|
$x = substr($uuid, 20, 12); |
$nodeid = ''; |
for ($i=0; $i<6; $i++) { |
$nodeid .= substr($x, $i*2, 2); |
if ($i != 5) $nodeid .= ':'; |
if ($i != 5) $nodeid .= '-'; |
} |
echo sprintf("%-24s %s\n", "Node ID:", "$nodeid"); |
$nodeid = strtoupper($nodeid); |
echo sprintf("%-32s %s\n", "Node ID:", "[0x$x] $nodeid"); |
|
if (function_exists('decode_mac')) { |
echo "\nIn case that this Node ID is a MAC address, here is the interpretation of that MAC address:\n"; |
decode_mac($nodeid); |
echo "\nIn case that this Node ID is a MAC address, here is the interpretation of that MAC address:\n\n"; |
decode_mac(strtoupper($nodeid)); |
} |
|
break; |
case 3: |
echo sprintf("%-24s %s\n", "Version:", "[3] Name-based (MD5 hash)"); |
/* |
Variant 1, Version 3 UUID |
- 48 bit Hash High |
- 4 bit Version (fix 0x3) |
- 12 bit Hash Mid |
- 2 bit Variant (fix 0b10) |
- 62 bit Hash Low |
*/ |
|
echo sprintf("%-32s %s\n", "Version:", "[3] Name-based (MD5 hash)"); |
|
$hash = str_replace('-', '', strtolower($uuid)); |
|
$hash[12] = '?'; // was overwritten by version |
|
$var16a = strtoupper(dechex(hexdec($hash[16]) & 0b0011 | 0b0000)); |
$var16b = strtoupper(dechex(hexdec($hash[16]) & 0b0011 | 0b0100)); |
$var16c = strtoupper(dechex(hexdec($hash[16]) & 0b0011 | 0b1000)); |
$var16d = strtoupper(dechex(hexdec($hash[16]) & 0b0011 | 0b1100)); |
$hash[16] = '?'; // was partially overwritten by variant |
|
echo sprintf("%-24s %s\n", "MD5(Namespace+Subject):", "$hash"); |
echo sprintf("%-32s %s\n", "MD5(Namespace+Subject):", "[0x$hash]"); |
echo sprintf("%-32s %s\n", "", " ^"); |
echo sprintf("%-32s %s\n", "", " $var16a, $var16b, $var16c, or $var16d"); |
|
break; |
case 4: |
echo sprintf("%-24s %s\n", "Version:", "[4] Random"); |
/* |
Variant 1, Version 4 UUID |
- 48 bit Random High |
- 4 bit Version (fix 0x4) |
- 12 bit Random Mid |
- 2 bit Variant (fix 0b10) |
- 62 bit Random Low |
*/ |
|
$rand = ''; |
echo sprintf("%-32s %s\n", "Version:", "[4] Random"); |
|
$rand_line1 = ''; |
$rand_line2 = ''; |
for ($i=0; $i<16; $i++) { |
$bin = base_convert(substr($uuid, $i*2, 2), 16, 2); |
$bin = str_pad($bin, 8, "0", STR_PAD_LEFT); |
|
if ($i == 6) { |
$bin[0] = 'x'; |
$bin[1] = 'x'; |
// was overwritten by version |
$bin[0] = '?'; |
$bin[1] = '?'; |
$bin[2] = '?'; |
$bin[3] = '?'; |
} else if ($i == 8) { |
$bin[0] = 'x'; |
$bin[1] = 'x'; |
$bin[2] = 'x'; |
$bin[3] = 'x'; |
// was partially overwritten by variant |
$bin[0] = '?'; |
$bin[1] = '?'; |
} |
|
$rand .= "$bin "; |
if ($i<8) $rand_line1 .= "$bin "; |
if ($i>=8) $rand_line2 .= "$bin "; |
} |
echo sprintf("%-32s %s\n", "Random bits:", trim($rand_line1)); |
echo sprintf("%-32s %s\n", "", trim($rand_line2)); |
|
echo sprintf("%-24s %s\n", "Random bits:", trim($rand)); |
$rand_bytes = str_replace('-', '', strtolower($uuid)); |
$rand_bytes[12] = '?'; // was overwritten by version |
$var16a = strtoupper(dechex(hexdec($rand_bytes[16]) & 0b0011 | 0b0000)); |
$var16b = strtoupper(dechex(hexdec($rand_bytes[16]) & 0b0011 | 0b0100)); |
$var16c = strtoupper(dechex(hexdec($rand_bytes[16]) & 0b0011 | 0b1000)); |
$var16d = strtoupper(dechex(hexdec($rand_bytes[16]) & 0b0011 | 0b1100)); |
$rand_bytes[16] = '?'; // was partially overwritten by variant |
echo sprintf("%-32s %s\n", "Random bytes:", "[0x$rand_bytes]"); |
echo sprintf("%-32s %s\n", "", " ^"); |
echo sprintf("%-32s %s\n", "", " $var16a, $var16b, $var16c, or $var16d"); |
|
break; |
case 5: |
echo sprintf("%-24s %s\n", "Version:", "[5] Name-based (SHA-1 hash)"); |
/* |
Variant 1, Version 5 UUID |
- 48 bit Hash High |
- 4 bit Version (fix 0x5) |
- 12 bit Hash Mid |
- 2 bit Variant (fix 0b10) |
- 62 bit Hash Low |
*/ |
|
echo sprintf("%-32s %s\n", "Version:", "[5] Name-based (SHA-1 hash)"); |
|
$hash = str_replace('-', '', strtolower($uuid)); |
|
$hash[12] = '?'; // was overwritten by version |
|
$var16a = strtoupper(dechex(hexdec($hash[16]) & 0b0011 | 0b0000)); |
$var16b = strtoupper(dechex(hexdec($hash[16]) & 0b0011 | 0b0100)); |
$var16c = strtoupper(dechex(hexdec($hash[16]) & 0b0011 | 0b1000)); |
$var16d = strtoupper(dechex(hexdec($hash[16]) & 0b0011 | 0b1100)); |
$hash[16] = '?'; // was partially overwritten by variant |
|
$hash .= '????????'; // was cut off |
|
echo sprintf("%-24s %s\n", "SHA1(Namespace+Subject):", "$hash"); |
echo sprintf("%-32s %s\n", "SHA1(Namespace+Subject):", "[0x$hash]"); |
echo sprintf("%-32s %s\n", "", " ^"); |
echo sprintf("%-32s %s\n", "", " $var16a, $var16b, $var16c, or $var16d"); |
|
break; |
case 7: |
/* |
Variant 1, Version 7 UUID |
- 48 bit Unix Time in milliseconds |
- 4 bit Version (fix 0x7) |
- 12 bit Random |
- 2 bit Variant (fix 0b10) |
- 62 bit Random |
*/ |
|
echo sprintf("%-32s %s\n", "Version:", "[7] Unix Epoch Time"); |
|
$timestamp = substr($uuid, 0, 12); |
|
// Timestamp: Split into seconds and milliseconds |
$ts = gmp_init($timestamp, 16); |
$ms = gmp_mod($ts, gmp_init("1000", 10)); |
$ts = gmp_div($ts, gmp_init("1000", 10)); |
$ts = gmp_strval($ts, 10); |
$ms = gmp_strval($ms, 10); |
$ts = gmdate('Y-m-d H:i:s', intval($ts))."'".str_pad($ms, 3/*ms*/, '0', STR_PAD_LEFT).' GMT'; |
echo sprintf("%-32s %s\n", "Timestamp:", "[0x$timestamp] $ts"); |
|
$rand = ''; |
for ($i=6; $i<16; $i++) { |
$bin = base_convert(substr($uuid, $i*2, 2), 16, 2); |
$bin = str_pad($bin, 8, "0", STR_PAD_LEFT); |
|
if ($i == 6) { |
// was overwritten by version |
$bin[0] = '?'; |
$bin[1] = '?'; |
$bin[2] = '?'; |
$bin[3] = '?'; |
} else if ($i == 8) { |
// was partially overwritten by variant |
$bin[0] = '?'; |
$bin[1] = '?'; |
} |
|
$rand .= "$bin "; |
} |
echo sprintf("%-32s %s\n", "Random bits:", trim($rand)); |
|
$rand_bytes = substr(str_replace('-', '', strtolower($uuid)),13); |
$var16a = strtoupper(dechex(hexdec($rand_bytes[3]) & 0b0011 | 0b0000)); |
$var16b = strtoupper(dechex(hexdec($rand_bytes[3]) & 0b0011 | 0b0100)); |
$var16c = strtoupper(dechex(hexdec($rand_bytes[3]) & 0b0011 | 0b1000)); |
$var16d = strtoupper(dechex(hexdec($rand_bytes[3]) & 0b0011 | 0b1100)); |
$rand_bytes[3] = '?'; // was partially overwritten by variant |
echo sprintf("%-32s %s\n", "Random bytes:", "[0x$rand_bytes]"); |
echo sprintf("%-32s %s\n", "", " ^"); |
echo sprintf("%-32s %s\n", "", " $var16a, $var16b, $var16c, or $var16d"); |
|
// TODO: convert to and from Base32 CROCKFORD ULID (make 2 methods in uuid_utils.inc.php) |
// e.g. ULID: 01GCZ05N3JFRKBRWKNGCQZGP44 |
// "Be aware that all version 7 UUIDs may be converted to ULIDs but not all ULIDs may be converted to UUIDs." |
|
break; |
case 8: |
/* |
Variant 1, Version 8 UUID |
- 48 bit Custom data |
- 4 bit Version (fix 0x8) |
- 12 bit Custom data |
- 2 bit Variant (fix 0b10) |
- 62 bit Custom data |
*/ |
|
echo sprintf("%-32s %s\n", "Version:", "[8] Custom implementation"); |
|
$custom_data = substr($uuid,0,12).substr($uuid,13); // exclude version nibble |
$custom_data[15] = dechex(hexdec($custom_data[15]) & 0b0011); // nibble was partially overwritten by variant |
$custom_data = strtolower($custom_data); |
|
$custom_block1 = substr($uuid, 0, 8); |
$custom_block2 = substr($uuid, 8, 4); |
$custom_block3 = substr($uuid, 12, 4); |
$custom_block4 = substr($uuid, 16, 4); |
$custom_block5 = substr($uuid, 20); |
|
$custom_block3 = substr($custom_block3, 1); // remove version |
$custom_block4[0] = dechex(hexdec($custom_block4[0]) & 0b0011); // remove variant |
|
echo sprintf("%-32s %s\n", "Custom data:", "[0x$custom_data]"); |
echo sprintf("%-32s %s\n", "Custom block1 (32 bit):", "[0x$custom_block1]"); |
echo sprintf("%-32s %s\n", "Custom block2 (16 bit):", "[0x$custom_block2]"); |
echo sprintf("%-32s %s\n", "Custom block3 (12 bit):", "[0x$custom_block3]"); |
echo sprintf("%-32s %s\n", "Custom block4 (14 bit):", "[0x$custom_block4]"); |
echo sprintf("%-32s %s\n", "Custom block5 (48 bit):", "[0x$custom_block5]"); |
|
break; |
default: |
echo sprintf("%-24s %s\n", "Version:", "[$version] Unknown"); |
echo sprintf("%-32s %s\n", "Version:", "[$version] Unknown"); |
break; |
} |
|
break; |
case 2: |
echo sprintf("%-24s %s\n", "Variant:", "[110] Reserved for Microsoft Corporation"); |
// 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 |
|
// TODO: Is there any scheme in that legacy Microsoft GUIDs? |
echo sprintf("%-32s %s\n", "Variant:", "[0b110] Reserved for Microsoft Corporation"); |
break; |
case 3: |
echo sprintf("%-24s %s\n", "Variant:", "[111] Reserved for future use"); |
echo sprintf("%-32s %s\n", "Variant:", "[0b111] Reserved for future use"); |
break; |
} |
|
if (!$echo) { |
$out = ob_get_contents(); |
ob_end_clean(); |
return $out; |
} else { |
return true; |
} |
} |
|
function uuid_canonize($uuid) { |
if (!uuid_valid($uuid)) return false; |
344,20 → 715,47 |
|
$uuid = str_replace(array('-', '{', '}'), '', $uuid); |
$x = gmp_init($uuid, 16); |
return '2.25.'.gmp_strval($x, 10); # TODO: parameter with or without leading dot |
return '2.25.'.gmp_strval($x, 10); |
} |
|
function gen_uuid($prefer_timebased = true) { |
$uuid = $prefer_timebased ? gen_uuid_timebased() : false; |
if ($uuid === false) $uuid = gen_uuid_random(); |
function uuid_numeric_value($uuid) { |
$oid = uuid_to_oid($uuid); |
if (!$oid) return false; |
return substr($oid, strlen('2.25.')); |
} |
|
function uuid_c_syntax($uuid) { |
$uuid = str_replace('{', '', $uuid); |
return '{ 0x' . substr($uuid, 0, 8) . |
', 0x' . substr($uuid, 9, 4) . |
', 0x' . substr($uuid, 14, 4) . |
', { 0x' . substr($uuid, 19, 2). |
', 0x' . substr($uuid, 21, 2) . |
', 0x' . substr($uuid, 24, 2) . |
', 0x' . substr($uuid, 26, 2) . |
', 0x' . substr($uuid, 28, 2) . |
', 0x' . substr($uuid, 30, 2) . |
', 0x' . substr($uuid, 32, 2) . |
', 0x' . substr($uuid, 34, 2) . ' } }'; |
} |
|
function gen_uuid($prefer_mac_address_based = true) { |
$uuid = $prefer_mac_address_based ? gen_uuid_reordered()/*UUIDv6*/ : false; |
if ($uuid === false) $uuid = gen_uuid_unix_epoch()/*UUIDv7*/; |
return $uuid; |
} |
|
// Version 1 (Time based) UUID |
function gen_uuid_timebased() { |
# -------------------------------------- |
// Variant 1, Version 1 (Time based) UUID |
# -------------------------------------- |
|
function gen_uuid_v1() { |
return gen_uuid_timebased(); |
} |
function gen_uuid_timebased($force_php_implementation=false) { |
# On Debian: apt-get install php-uuid |
# extension_loaded('uuid') |
if (function_exists('uuid_create')) { |
if (!$force_php_implementation && function_exists('uuid_create')) { |
# OSSP uuid extension like seen in php5-uuid at Debian 8 |
/* |
$x = uuid_create($context); |
371,7 → 769,7 |
} |
|
# On Debian: apt-get install uuid-runtime |
if (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') { |
if (!$force_php_implementation && strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') { |
$out = array(); |
$ec = -1; |
exec('uuidgen -t 2>/dev/null', $out, $ec); |
395,21 → 793,31 |
* is the offset between UNIX epoch and the UUID UTC |
* time base October 15, 1582. |
*/ |
if (time_nanosleep(0,100) !== true) usleep(1); // Wait 100ns, to make sure that the time part changes if multiple UUIDs are generated |
$tp = gettimeofday(); |
if (PHP_INT_SIZE == 4) { |
$tp['sec'] = gmp_init($tp['sec'],10); |
$tp['usec'] = gmp_init($tp['usec'],10); |
$time = gmp_add(gmp_add(gmp_mul($tp['sec'], gmp_init('10000000',10)),gmp_mul($tp['usec'], gmp_init('10',10))),gmp_init('01B21DD213814000',16)); |
$uuid['time_low'] = gmp_and($time, gmp_init('ffffffff',16)); |
$high = gmp_shiftr($time,32); |
$uuid['time_mid'] = gmp_and($high, gmp_init('ffff',16)); |
$uuid['time_hi'] = intval(gmp_and(gmp_shiftr($high,16),gmp_init('fff',16)),10) | (1/*TimeBased*/ << 12); |
} else { |
$time = ($tp['sec'] * 10000000) + ($tp['usec'] * 10) + 0x01B21DD213814000; |
|
$uuid['time_low'] = $time & 0xffffffff; |
/* Work around PHP 32-bit bit-operation limits */ |
$high = intval($time / 0xffffffff); |
$uuid['time_mid'] = $high & 0xffff; |
$uuid['time_hi'] = (($high >> 16) & 0xfff) | (1/*TimeBased*/ << 12); |
} |
|
/* |
* We don't support saved state information and generate |
* a random clock sequence each time. |
*/ |
$uuid['clock_seq_hi'] = 0x80 | mt_rand(0, 64); |
$uuid['clock_seq_low'] = mt_rand(0, 255); |
$uuid['clock_seq_hi'] = _random_int(0, 255) & 0b00111111 | 0b10000000; // set variant to 0b10__ (RFC 4122) |
$uuid['clock_seq_low'] = _random_int(0, 255); |
|
/* |
* Node should be set to the 48-bit IEEE node identifier |
416,10 → 824,15 |
*/ |
$mac = get_mac_address(); |
if ($mac) { |
$node = str_replace(':','',$mac); |
$node = str_replace('-','',str_replace(':','',$mac)); |
for ($i = 0; $i < 6; $i++) { |
$uuid['node'][$i] = hexdec(substr($node, $i*2, 2)); |
} |
} else { |
// If we cannot get a MAC address, then generate a random AAI |
$uuid['node'] = explode('-', gen_aai(48, false)); |
$uuid['node'] = array_map('hexdec', $uuid['node']); |
} |
|
/* |
* Now output the UUID |
431,11 → 844,6 |
$uuid['node'][0], $uuid['node'][1], $uuid['node'][2], |
$uuid['node'][3], $uuid['node'][4], $uuid['node'][5]); |
} |
|
# We cannot generate the timebased UUID! |
return false; |
} |
|
function get_mac_address() { |
static $detected_mac = false; |
|
443,7 → 851,7 |
return $detected_mac; |
} |
|
// TODO: This should actually be part of mac_utils.inc.php, but we need it |
// TODO: This method get_mac_address() should actually be part of mac_utils.inc.php, but we need it |
// here, and mac_utils.inc.php shall only be optional. What to do? |
if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') { |
// Windows |
458,8 → 866,8 |
if ($ec == 0) { |
$out = implode("\n",$out); |
$m = array(); |
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)) { |
$detected_mac = str_replace('-', ':', strtolower($m[1])); |
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)) { |
$detected_mac = strtolower($m[1]); |
return $detected_mac; |
} |
} |
489,9 → 897,11 |
foreach ($addresses as $x) { |
if (!strstr($x,'/lo/')) { |
$detected_mac = trim(file_get_contents($x)); |
if (substr(mac_type($detected_mac),0,6) == 'EUI-48') { |
return $detected_mac; |
} |
} |
} |
$cmds = array( |
"netstat -ie 2>/dev/null", |
"ifconfig 2>/dev/null" // only available for root (because it is in sbin) |
515,15 → 925,32 |
return $detected_mac; |
} |
|
// Version 2 (DCE Security) UUID |
# -------------------------------------- |
// Variant 1, Version 2 (DCE Security) UUID |
# -------------------------------------- |
|
define('DCE_DOMAIN_PERSON', 0); |
define('DCE_DOMAIN_GROUP', 1); |
define('DCE_DOMAIN_ORG', 2); |
function gen_uuid_v2($domain, $id) { |
return gen_uuid_dce($domain, $id); |
} |
function gen_uuid_dce($domain, $id) { |
if (($domain ?? '') === '') throw new Exception("Domain ID missing"); |
if (!is_numeric($domain)) throw new Exception("Invalid Domain ID"); |
if (($domain < 0) || ($domain > 255)) throw new Exception("Domain ID must be in range 0..255"); |
|
if (($id ?? '') === '') throw new Exception("ID value missing"); |
if (!is_numeric($id)) throw new Exception("Invalid ID value"); |
if (($id < 0) || ($id > 4294967295)) throw new Exception("ID value must be in range 0..4294967295"); |
|
# Start with a version 1 UUID |
$uuid = gen_uuid_timebased(); |
|
# Add ID |
# Add Domain Number |
$uuid = str_pad(dechex($id), 8, '0', STR_PAD_LEFT) . substr($uuid, 8); |
|
# Add domain |
# Add Domain (this overwrites part of the clock sequence) |
$uuid = substr($uuid,0,21) . str_pad(dechex($domain), 2, '0', STR_PAD_LEFT) . substr($uuid, 23); |
|
# Change version to 2 |
532,9 → 959,17 |
return $uuid; |
} |
|
// Version 3 (MD5 name based) UUID |
# -------------------------------------- |
// Variant 1, Version 3 (MD5 name based) UUID |
# -------------------------------------- |
|
function gen_uuid_v3($namespace_uuid, $name) { |
return gen_uuid_md5_namebased($namespace_uuid, $name); |
} |
function gen_uuid_md5_namebased($namespace_uuid, $name) { |
if (!uuid_valid($namespace_uuid)) return false; |
if (($namespace_uuid ?? '') === '') throw new Exception("Namespace UUID missing"); |
if (!uuid_valid($namespace_uuid)) throw new Exception("Invalid namespace UUID '$namespace_uuid'"); |
|
$namespace_uuid = uuid_canonize($namespace_uuid); |
$namespace_uuid = str_replace('-', '', $namespace_uuid); |
$namespace_uuid = hex2bin($namespace_uuid); |
541,7 → 976,7 |
|
$hash = md5($namespace_uuid.$name); |
$hash[12] = '3'; // Set version: 3 = MD5 |
$hash[16] = dechex(hexdec($hash[16]) & 0x3 | 0x8); // Set variant to "10xx" (RFC4122) |
$hash[16] = dechex(hexdec($hash[16]) & 0b0011 | 0b1000); // Set variant to "10xx" (RFC4122) |
|
return substr($hash, 0, 8).'-'. |
substr($hash, 8, 4).'-'. |
550,14 → 985,23 |
substr($hash, 20, 12); |
} |
|
// Version 4 (Random) UUID |
# -------------------------------------- |
// Variant 1, Version 4 (Random) UUID |
# -------------------------------------- |
|
function gen_uuid_v4() { |
return gen_uuid_random(); |
} |
function gen_uuid_random() { |
# On Windows: Requires |
# extension_dir = "C:\php-8.0.3-nts-Win32-vs16-x64\ext" |
# extension=com_dotnet |
// TODO: can we trust that com_create_guid() always outputs UUIDv4? |
/* |
if (function_exists('com_create_guid')) { |
return strtolower(trim(com_create_guid(), '{}')); |
} |
*/ |
|
# On Debian: apt-get install php-uuid |
# extension_loaded('uuid') |
590,22 → 1034,31 |
# Make the UUID by ourselves |
# Source: http://rogerstringer.com/2013/11/15/generate-uuids-php |
return sprintf( '%04x%04x-%04x-%04x-%04x-%04x%04x%04x', |
mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff ), |
mt_rand( 0, 0xffff ), |
mt_rand( 0, 0x0fff ) | 0x4000, |
mt_rand( 0, 0x3fff ) | 0x8000, |
mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff ) |
_random_int( 0, 0xffff ), _random_int( 0, 0xffff ), |
_random_int( 0, 0xffff ), |
_random_int( 0, 0x0fff ) | 0x4000, |
_random_int( 0, 0x3fff ) | 0x8000, |
_random_int( 0, 0xffff ), _random_int( 0, 0xffff ), _random_int( 0, 0xffff ) |
); |
} |
|
// Version 5 (SHA1 name based) UUID |
# -------------------------------------- |
// Variant 1, Version 5 (SHA1 name based) UUID |
# -------------------------------------- |
|
function gen_uuid_v5($namespace_uuid, $name) { |
return gen_uuid_sha1_namebased($namespace_uuid, $name); |
} |
function gen_uuid_sha1_namebased($namespace_uuid, $name) { |
if (($namespace_uuid ?? '') === '') throw new Exception("Namespace UUID missing"); |
if (!uuid_valid($namespace_uuid)) throw new Exception("Invalid namespace UUID '$namespace_uuid'"); |
|
$namespace_uuid = str_replace('-', '', $namespace_uuid); |
$namespace_uuid = hex2bin($namespace_uuid); |
|
$hash = sha1($namespace_uuid.$name); |
$hash[12] = '5'; // Set version: 5 = SHA1 |
$hash[16] = dechex(hexdec($hash[16]) & 0x3 | 0x8); // Set variant to "10xx" (RFC4122) |
$hash[16] = dechex(hexdec($hash[16]) & 0b0011 | 0b1000); // Set variant to "0b10__" (RFC4122/DCE1.1) |
|
return substr($hash, 0, 8).'-'. |
substr($hash, 8, 4).'-'. |
614,29 → 1067,110 |
substr($hash, 20, 12); |
} |
|
function uuid_numeric_value($uuid) { |
$oid = uuid_to_oid($uuid); |
if (!$oid) return false; |
return substr($oid, strlen('2.25.')); |
# -------------------------------------- |
// Variant 1, Version 6 (Reordered) UUID |
# -------------------------------------- |
|
function gen_uuid_v6() { |
return gen_uuid_reordered(); |
} |
function gen_uuid_reordered() { |
// Start with a UUIDv1 |
$uuid = gen_uuid_timebased(); |
|
function uuid_c_syntax($uuid) { |
$uuid = str_replace('{', '', $uuid); |
return '{ 0x' . substr($uuid, 0, 8) . |
', 0x' . substr($uuid, 9, 4) . |
', 0x' . substr($uuid, 14, 4) . |
', { 0x' . substr($uuid, 19, 2). |
', 0x' . substr($uuid, 21, 2) . |
', 0x' . substr($uuid, 24, 2) . |
', 0x' . substr($uuid, 26, 2) . |
', 0x' . substr($uuid, 28, 2) . |
', 0x' . substr($uuid, 30, 2) . |
', 0x' . substr($uuid, 32, 2) . |
', 0x' . substr($uuid, 34, 2) . ' } }'; |
// Convert to UUIDv6 |
return uuid1_to_uuid6($uuid); |
} |
function uuid6_to_uuid1($hex) { |
$hex = uuid_canonize($hex); |
if ($hex === false) return false; |
$hex = preg_replace('@[^0-9A-F]@i', '', $hex); |
$hex = substr($hex, 7, 5). |
substr($hex, 13, 3). |
substr($hex, 3, 4). |
'1' . substr($hex, 0, 3). |
substr($hex, 16); |
return substr($hex, 0, 8).'-'. |
substr($hex, 8, 4).'-'. |
substr($hex, 12, 4).'-'. |
substr($hex, 16, 4).'-'. |
substr($hex, 20, 12); |
} |
function uuid1_to_uuid6($hex) { |
$hex = uuid_canonize($hex); |
if ($hex === false) return false; |
$hex = preg_replace('@[^0-9A-F]@i', '', $hex); |
$hex = substr($hex, 13, 3). |
substr($hex, 8, 4). |
substr($hex, 0, 5). |
'6' . substr($hex, 5, 3). |
substr($hex, 16); |
return substr($hex, 0, 8).'-'. |
substr($hex, 8, 4).'-'. |
substr($hex, 12, 4).'-'. |
substr($hex, 16, 4).'-'. |
substr($hex, 20, 12); |
} |
|
# --- |
# -------------------------------------- |
// Variant 1, Version 7 (Unix Epoch) UUID |
# -------------------------------------- |
|
function gen_uuid_v7() { |
return gen_uuid_unix_epoch(); |
} |
function gen_uuid_unix_epoch() { |
// Start with an UUIDv4 |
$uuid = gen_uuid_random(); |
|
// Add the timestamp |
usleep(1000); // Wait 1ms, to make sure that the time part changes if multiple UUIDs are generated |
if (function_exists('gmp_init')) { |
list($ms,$sec) = explode(' ', microtime(false)); |
$sec = gmp_init($sec, 10); |
$ms = gmp_init(substr($ms,2,3), 10); |
$unix_ts = gmp_strval(gmp_add(gmp_mul($sec, '1000'), $ms),16); |
} else { |
$unix_ts = dechex((int)round(microtime(true)*1000)); |
} |
$unix_ts = str_pad($unix_ts, 12, '0', STR_PAD_LEFT); |
for ($i=0;$i<8;$i++) $uuid[$i] = substr($unix_ts, $i, 1); |
for ($i=0;$i<4;$i++) $uuid[9+$i] = substr($unix_ts, 8+$i, 1); |
|
// set version |
$uuid[14] = '7'; |
|
return $uuid; |
} |
|
# -------------------------------------- |
// Variant 1, Version 8 (Custom) UUID |
# -------------------------------------- |
|
function gen_uuid_v8($block1_32bit, $block2_16bit, $block3_12bit, $block4_14bit, $block5_48bit) { |
return gen_uuid_custom($block1_32bit, $block2_16bit, $block3_12bit, $block4_14bit, $block5_48bit); |
} |
function gen_uuid_custom($block1_32bit, $block2_16bit, $block3_12bit, $block4_14bit, $block5_48bit) { |
if (preg_replace('@[0-9A-F]@i', '', $block1_32bit) != '') throw new Exception("Invalid data for block 1. Must be hex input"); |
if (preg_replace('@[0-9A-F]@i', '', $block2_16bit) != '') throw new Exception("Invalid data for block 2. Must be hex input"); |
if (preg_replace('@[0-9A-F]@i', '', $block3_12bit) != '') throw new Exception("Invalid data for block 3. Must be hex input"); |
if (preg_replace('@[0-9A-F]@i', '', $block4_14bit) != '') throw new Exception("Invalid data for block 4. Must be hex input"); |
if (preg_replace('@[0-9A-F]@i', '', $block5_48bit) != '') throw new Exception("Invalid data for block 5. Must be hex input"); |
|
$block1 = str_pad(substr($block1_32bit, -8), 8, '0', STR_PAD_LEFT); |
$block2 = str_pad(substr($block2_16bit, -4), 4, '0', STR_PAD_LEFT); |
$block3 = str_pad(substr($block3_12bit, -4), 4, '0', STR_PAD_LEFT); |
$block4 = str_pad(substr($block4_14bit, -4), 4, '0', STR_PAD_LEFT); |
$block5 = str_pad(substr($block5_48bit,-12), 12, '0', STR_PAD_LEFT); |
|
$block3[0] = '8'; // Version 8 = Custom |
$block4[0] = dechex(hexdec($block4[0]) & 0b0011 | 0b1000); // Variant 0b10__ = RFC4122 |
|
return strtolower($block1.'-'.$block2.'-'.$block3.'-'.$block4.'-'.$block5); |
} |
|
# -------------------------------------- |
|
// http://php.net/manual/de/function.hex2bin.php#113057 |
if ( !function_exists( 'hex2bin' ) ) { |
function hex2bin( $str ) { |
645,7 → 1179,19 |
for ( $i = 0; $i < $len; $i += 2 ) { |
$sbin .= pack( "H*", substr( $str, $i, 2 ) ); |
} |
|
return $sbin; |
} |
} |
|
// https://stackoverflow.com/questions/72127764/shift-right-left-bitwise-operators-in-php7-gmp-extension |
if (!function_exists('gmp_shiftl')) { |
function gmp_shiftl($x,$n) { // shift left |
return(gmp_mul($x,gmp_pow(2,$n))); |
} |
} |
|
if (!function_exists('gmp_shiftr')) { |
function gmp_shiftr($x,$n) { // shift right |
return(gmp_div_q($x,gmp_pow(2,$n))); |
} |
} |