| 0,0 → 1,650 |
|---|
| <?php |
| |
| /* |
| * UUID utils for PHP |
| * Copyright 2011 - 2021 Daniel Marschall, ViaThinkSoft |
| * Version 2021-05-21 |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| # This library requires either the GMP extension (or BCMath if gmp_supplement.inc.php is present) |
| |
| if (file_exists(__DIR__ . '/mac_utils.inc.phps')) include_once __DIR__ . '/mac_utils.inc.phps'; // 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'); |
| |
| function uuid_valid($uuid) { |
| $uuid = str_replace(array('-', '{', '}'), '', $uuid); |
| $uuid = strtoupper($uuid); |
| #$uuid = trim($uuid); |
| |
| if (strlen($uuid) != 32) return false; |
| |
| $uuid = preg_replace('@[0-9A-F]@', '', $uuid); |
| |
| return ($uuid == ''); |
| } |
| |
| # TODO: Don't echo |
| function uuid_info($uuid) { |
| if (!uuid_valid($uuid)) return false; |
| |
| #$uuid = trim($uuid); |
| # $uuid = str_replace(array('-', '{', '}'), '', $uuid); |
| $uuid = strtoupper($uuid); |
| $uuid = preg_replace('@[^0-9A-F]@', '', $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; |
| else $variant = -1; // should not happen |
| |
| switch ($variant) { |
| case 0: |
| echo sprintf("%-24s %s\n", "Variant:", "[0xx] NCS (reserved for backward compatibility)"); |
| |
| /* |
| * Internal structure of variant #0 UUIDs |
| * |
| * The first 6 octets are the number of 4 usec units of time that have |
| * passed since 1/1/80 0000 GMT. The next 2 octets are reserved for |
| * future use. The next octet is an address family. The next 7 octets |
| * are a host ID in the form allowed by the specified address family. |
| * |
| * Note that while the family field (octet 8) was originally conceived |
| * 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 |
| * +--------------------------...-----+ |
| * |
| */ |
| |
| // Example of an UUID: 333a2276-0000-0000-0d00-00809c000000 |
| |
| # TODO: See https://github.com/cjsv/uuid/blob/master/Doc |
| |
| # Timestamp: Count of 4us intervals since 01 Jan 1980 00:00:00 GMT |
| # 1/0,000004 = 250000 |
| # Seconds between 1970 and 1980 : 315532800 |
| # 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"); |
| |
| $reserved = substr($uuid, 12, 4); |
| echo sprintf("%-24s %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)'; |
| } else { |
| $family_ = "Unknown ($family_dec)"; # There are probably no more families |
| } |
| echo sprintf("%-24s %s\n", "Family:", "[0x$family_hex = $family_dec] $family_"); |
| |
| $nodeid = substr($uuid, 18, 14); |
| echo sprintf("%-24s %s\n", "Node ID:", "0x$nodeid"); |
| # TODO: interprete node id (the family specifies it) |
| |
| break; |
| case 1: |
| echo sprintf("%-24s %s\n", "Variant:", "[10x] RFC 4122 (Leach-Mealling-Salz)"); |
| |
| $version = hexdec(substr($uuid, 12, 1)); |
| switch ($version) { |
| case 1: |
| echo sprintf("%-24s %s\n", "Version:", "[1] Time-based with unique random 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"); |
| |
| $x = hexdec(substr($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"); |
| |
| $x = substr($uuid, 20, 12); |
| $nodeid = ''; |
| for ($i=0; $i<6; $i++) { |
| $nodeid .= substr($x, $i*2, 2); |
| if ($i != 5) $nodeid .= ':'; |
| } |
| echo sprintf("%-24s %s\n", "Node ID:", "$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"; |
| echo decode_mac($nodeid); /** @phpstan-ignore-line */ |
| } |
| |
| break; |
| case 2: |
| echo sprintf("%-24s %s\n", "Version:", "[2] DCE Security version"); |
| |
| # 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"); |
| |
| # 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)"); |
| |
| # 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'; |
| |
| $timestamp = substr($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'; |
| |
| $timestamp = substr($uuid, 13, 3).substr($uuid, 8, 4).'xxxxxxxx'; |
| echo sprintf("%-24s %s\n", "Timestamp:", "[0x$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"); |
| |
| $x = substr($uuid, 20, 12); |
| $nodeid = ''; |
| for ($i=0; $i<6; $i++) { |
| $nodeid .= substr($x, $i*2, 2); |
| if ($i != 5) $nodeid .= ':'; |
| } |
| echo sprintf("%-24s %s\n", "Node ID:", "$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"; |
| echo decode_mac($nodeid); /** @phpstan-ignore-line */ |
| } |
| |
| break; |
| case 3: |
| echo sprintf("%-24s %s\n", "Version:", "[3] Name-based (MD5 hash)"); |
| |
| $hash = str_replace('-', '', strtolower($uuid)); |
| $hash[12] = '?'; // was overwritten by version |
| $hash[16] = '?'; // was partially overwritten by variant |
| |
| echo sprintf("%-24s %s\n", "MD5(Namespace+Subject):", "$hash"); |
| |
| break; |
| case 4: |
| echo sprintf("%-24s %s\n", "Version:", "[4] Random"); |
| |
| $rand = ''; |
| for ($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'; |
| $bin[1] = 'x'; |
| } else if ($i == 8) { |
| $bin[0] = 'x'; |
| $bin[1] = 'x'; |
| $bin[2] = 'x'; |
| $bin[3] = 'x'; |
| } |
| |
| $rand .= "$bin "; |
| } |
| |
| echo sprintf("%-24s %s\n", "Random bits:", trim($rand)); |
| |
| break; |
| case 5: |
| echo sprintf("%-24s %s\n", "Version:", "[5] Name-based (SHA-1 hash)"); |
| |
| $hash = str_replace('-', '', strtolower($uuid)); |
| $hash[12] = '?'; // was overwritten by version |
| $hash[16] = '?'; // was partially overwritten by variant |
| $hash .= '????????'; // was cut off |
| |
| echo sprintf("%-24s %s\n", "SHA1(Namespace+Subject):", "$hash"); |
| |
| |
| break; |
| default: |
| echo sprintf("%-24s %s\n", "Version:", "[$version] Unknown"); |
| break; |
| } |
| |
| break; |
| case 2: |
| echo sprintf("%-24s %s\n", "Variant:", "[110] Reserved for Microsoft Corporation"); |
| break; |
| case 3: |
| echo sprintf("%-24s %s\n", "Variant:", "[111] Reserved for future use"); |
| break; |
| } |
| } |
| |
| function uuid_canonize($uuid) { |
| if (!uuid_valid($uuid)) return false; |
| return oid_to_uuid(uuid_to_oid($uuid)); |
| } |
| |
| function oid_to_uuid($oid) { |
| if (!is_uuid_oid($oid)) return false; |
| |
| if ($oid[0] == '.') { |
| $oid = substr($oid, 1); |
| } |
| $ary = explode('.', $oid); |
| |
| if (!isset($ary[2])) return false; |
| |
| $val = $ary[2]; |
| |
| $x = gmp_init($val, 10); |
| $y = gmp_strval($x, 16); |
| $y = str_pad($y, 32, "0", STR_PAD_LEFT); |
| return substr($y, 0, 8).'-'. |
| substr($y, 8, 4).'-'. |
| substr($y, 12, 4).'-'. |
| substr($y, 16, 4).'-'. |
| substr($y, 20, 12); |
| } |
| |
| function is_uuid_oid($oid, $only_allow_root=false) { |
| if ($oid[0] == '.') $oid = substr($oid, 1); // remove leading dot |
| |
| $ary = explode('.', $oid); |
| |
| if ($only_allow_root) { |
| if (count($ary) != 3) return false; |
| } else { |
| if (count($ary) < 3) return false; |
| } |
| |
| if ($ary[0] != '2') return false; |
| if ($ary[1] != '25') return false; |
| for ($i=2; $i<count($ary); $i++) { |
| $v = $ary[$i]; |
| if (!is_numeric($v)) return false; |
| if ($i == 2) { |
| // Must be in the range of 128 bit UUID |
| $test = gmp_init($v, 10); |
| if (strlen(gmp_strval($test, 16)) > 32) return false; |
| } |
| if ($v < 0) return false; |
| } |
| |
| return true; |
| } |
| |
| function uuid_to_oid($uuid) { |
| if (!uuid_valid($uuid)) return false; |
| |
| $uuid = str_replace(array('-', '{', '}'), '', $uuid); |
| $x = gmp_init($uuid, 16); |
| return '2.25.'.gmp_strval($x, 10); # TODO: parameter with or without leading dot |
| } |
| |
| function gen_uuid($prefer_timebased = true) { |
| $uuid = $prefer_timebased ? gen_uuid_timebased() : false; |
| if ($uuid === false) $uuid = gen_uuid_random(); |
| return $uuid; |
| } |
| |
| // Version 1 (Time based) UUID |
| function gen_uuid_timebased() { |
| # On Debian: apt-get install php-uuid |
| # extension_loaded('uuid') |
| if (function_exists('uuid_create')) { |
| # OSSP uuid extension like seen in php5-uuid at Debian 8 |
| /* |
| $x = uuid_create($context); |
| uuid_make($context, UUID_MAKE_V1); |
| uuid_export($context, UUID_FMT_STR, $uuid); |
| return trim($uuid); |
| */ |
| |
| # PECL uuid extension like seen in php-uuid at Debian 9 |
| return trim(uuid_create(UUID_TYPE_TIME)); |
| } |
| |
| # On Debian: apt-get install uuid-runtime |
| if (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') { |
| $out = array(); |
| $ec = -1; |
| exec('uuidgen -t 2>/dev/null', $out, $ec); |
| if ($ec == 0) return trim($out[0]); |
| } |
| |
| # If we hadn't any success yet, then implement the time based generation routine ourselves! |
| # Based on https://github.com/fredriklindberg/class.uuid.php/blob/master/class.uuid.php |
| |
| $uuid = array( |
| 'time_low' => 0, /* 32-bit */ |
| 'time_mid' => 0, /* 16-bit */ |
| 'time_hi' => 0, /* 16-bit */ |
| 'clock_seq_hi' => 0, /* 8-bit */ |
| 'clock_seq_low' => 0, /* 8-bit */ |
| 'node' => array() /* 48-bit */ |
| ); |
| |
| /* |
| * Get current time in 100 ns intervals. The magic value |
| * is the offset between UNIX epoch and the UUID UTC |
| * time base October 15, 1582. |
| */ |
| $tp = gettimeofday(); |
| $time = ($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); |
| |
| /* |
| * Node should be set to the 48-bit IEEE node identifier |
| */ |
| $mac = get_mac_address(); |
| if ($mac) { |
| $node = str_replace(':','',$mac); |
| for ($i = 0; $i < 6; $i++) { |
| $uuid['node'][$i] = hexdec(substr($node, $i*2, 2)); |
| } |
| |
| /* |
| * Now output the UUID |
| */ |
| return sprintf( |
| '%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x', |
| ($uuid['time_low']), ($uuid['time_mid']), ($uuid['time_hi']), |
| $uuid['clock_seq_hi'], $uuid['clock_seq_low'], |
| $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 $detected_mac = false; |
| |
| if ($detected_mac !== false) { // false NOT null! |
| return $detected_mac; |
| } |
| |
| // TODO: This 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 |
| $cmds = array( |
| "ipconfig /all", // faster |
| "getmac" |
| ); |
| foreach ($cmds as $cmd) { |
| $out = array(); |
| $ec = -1; |
| exec($cmd, $out, $ec); |
| if ($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])); |
| return $detected_mac; |
| } |
| } |
| } |
| } else if (strtoupper(PHP_OS) == 'DARWIN') { |
| // Mac OS X |
| $cmds = array( |
| "networksetup -listallhardwareports 2>/dev/null", |
| "netstat -i 2>/dev/null" |
| ); |
| foreach ($cmds as $cmd) { |
| $out = array(); |
| $ec = -1; |
| exec($cmd, $out, $ec); |
| if ($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 = $m[1]; |
| return $detected_mac; |
| } |
| } |
| } |
| } else { |
| // Linux |
| foreach (glob('/sys/class/net/'.'*'.'/address') as $x) { |
| if (!strstr($x,'/lo/')) { |
| $detected_mac = trim(file_get_contents($x)); |
| return $detected_mac; |
| } |
| } |
| $cmds = array( |
| "netstat -ie 2>/dev/null", |
| "ifconfig 2>/dev/null" // only available for root (because it is in sbin) |
| ); |
| foreach ($cmds as $cmd) { |
| $out = array(); |
| $ec = -1; |
| exec($cmd, $out, $ec); |
| if ($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 = $m[1]; |
| return $detected_mac; |
| } |
| } |
| } |
| } |
| |
| $detected_mac = null; |
| return $detected_mac; |
| } |
| |
| // Version 2 (DCE Security) UUID |
| function gen_uuid_dce($domain, $id) { |
| # Start with a version 1 UUID |
| $uuid = gen_uuid_timebased(); |
| |
| # Add ID |
| $uuid = str_pad(dechex($id), 8, '0', STR_PAD_LEFT) . substr($uuid, 8); |
| |
| # Add domain |
| $uuid = substr($uuid,0,21) . str_pad(dechex($domain), 2, '0', STR_PAD_LEFT) . substr($uuid, 23); |
| |
| # Change version to 2 |
| $uuid[14] = '2'; |
| |
| return $uuid; |
| } |
| |
| // Version 3 (MD5 name based) UUID |
| function gen_uuid_md5_namebased($namespace_uuid, $name) { |
| if (!uuid_valid($namespace_uuid)) return false; |
| $namespace_uuid = uuid_canonize($namespace_uuid); |
| $namespace_uuid = str_replace('-', '', $namespace_uuid); |
| $namespace_uuid = hex2bin($namespace_uuid); |
| |
| $hash = md5($namespace_uuid.$name); |
| $hash[12] = '3'; // Set version: 3 = MD5 |
| $hash[16] = dechex(hexdec($hash[16]) & 0x3 | 0x8); // Set variant to "10xx" (RFC4122) |
| |
| return substr($hash, 0, 8).'-'. |
| substr($hash, 8, 4).'-'. |
| substr($hash, 12, 4).'-'. |
| substr($hash, 16, 4).'-'. |
| substr($hash, 20, 12); |
| } |
| |
| // Version 4 (Random) UUID |
| function gen_uuid_random() { |
| # On Windows: Requires |
| # extension_dir = "C:\php-8.0.3-nts-Win32-vs16-x64\ext" |
| # extension=com_dotnet |
| if (function_exists('com_create_guid')) { |
| return strtolower(trim(com_create_guid(), '{}')); |
| } |
| |
| # On Debian: apt-get install php-uuid |
| # extension_loaded('uuid') |
| if (function_exists('uuid_create')) { |
| # OSSP uuid extension like seen in php5-uuid at Debian 8 |
| /* |
| $x = uuid_create($context); |
| uuid_make($context, UUID_MAKE_V4); |
| uuid_export($context, UUID_FMT_STR, $uuid); |
| return trim($uuid); |
| */ |
| |
| # PECL uuid extension like seen in php-uuid at Debian 9 |
| return trim(uuid_create(UUID_TYPE_RANDOM)); |
| } |
| |
| if (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') { |
| # On Debian: apt-get install uuid-runtime |
| $out = array(); |
| $ec = -1; |
| exec('uuidgen -r 2>/dev/null', $out, $ec); |
| if ($ec == 0) return trim($out[0]); |
| |
| # On Debian Jessie: UUID V4 (Random) |
| if (file_exists('/proc/sys/kernel/random/uuid')) { |
| return trim(file_get_contents('/proc/sys/kernel/random/uuid')); |
| } |
| } |
| |
| # Make the UUID by ourselves |
| # Source: http://rogerstringer.com/2013/11/15/generate-uuids-php |
| return sprintf( '%04x%04x-%04x-%04x-%04x-%04x%04x%04x', |
| mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff ), |
| mt_rand( 0, 0xffff ), |
| mt_rand( 0, 0x0fff ) | 0x4000, |
| mt_rand( 0, 0x3fff ) | 0x8000, |
| mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff ) |
| ); |
| } |
| |
| // Version 5 (SHA1 name based) UUID |
| function gen_uuid_sha1_namebased($namespace_uuid, $name) { |
| $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) |
| |
| return substr($hash, 0, 8).'-'. |
| substr($hash, 8, 4).'-'. |
| substr($hash, 12, 4).'-'. |
| substr($hash, 16, 4).'-'. |
| substr($hash, 20, 12); |
| } |
| |
| function uuid_numeric_value($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) . ' } }'; |
| } |
| |
| # --- |
| |
| // http://php.net/manual/de/function.hex2bin.php#113057 |
| if ( !function_exists( 'hex2bin' ) ) { |
| function hex2bin( $str ) { |
| $sbin = ""; |
| $len = strlen( $str ); |
| for ( $i = 0; $i < $len; $i += 2 ) { |
| $sbin .= pack( "H*", substr( $str, $i, 2 ) ); |
| } |
| |
| return $sbin; |
| } |
| } |