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3 | daniel-mar | 1 | <?php |
2 | |||
3 | /* |
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4 | * UUID utils for PHP |
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14 | daniel-mar | 5 | * Copyright 2011 - 2020 Daniel Marschall, ViaThinkSoft |
6 | * Version 2020-11-14 |
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3 | daniel-mar | 7 | * |
8 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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9 | * you may not use this file except in compliance with the License. |
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10 | * You may obtain a copy of the License at |
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11 | * |
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12 | * http://www.apache.org/licenses/LICENSE-2.0 |
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13 | * |
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14 | * Unless required by applicable law or agreed to in writing, software |
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15 | * distributed under the License is distributed on an "AS IS" BASIS, |
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16 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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17 | * See the License for the specific language governing permissions and |
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18 | * limitations under the License. |
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19 | */ |
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20 | |||
12 | daniel-mar | 21 | # This library requires either the GMP extension (or BCMath if gmp_supplement.inc.php is present) |
22 | |||
14 | daniel-mar | 23 | if (file_exists(__DIR__ . '/mac_utils.inc.phps')) include_once __DIR__ . '/mac_utils.inc.phps'; // optionally used for uuid_info() |
12 | daniel-mar | 24 | if (file_exists(__DIR__ . '/gmp_supplement.inc.php')) include_once __DIR__ . '/gmp_supplement.inc.php'; |
3 | daniel-mar | 25 | |
26 | define('UUID_NAMEBASED_NS_DNS', '6ba7b810-9dad-11d1-80b4-00c04fd430c8'); |
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27 | define('UUID_NAMEBASED_NS_URL', '6ba7b811-9dad-11d1-80b4-00c04fd430c8'); |
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28 | define('UUID_NAMEBASED_NS_OID', '6ba7b812-9dad-11d1-80b4-00c04fd430c8'); |
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29 | define('UUID_NAMEBASED_NS_X500_DN', '6ba7b814-9dad-11d1-80b4-00c04fd430c8'); |
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30 | |||
31 | function uuid_valid($uuid) { |
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32 | $uuid = str_replace(array('-', '{', '}'), '', $uuid); |
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33 | $uuid = strtoupper($uuid); |
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34 | |||
35 | if (strlen($uuid) != 32) return false; |
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36 | |||
37 | $uuid = preg_replace('@[0-9A-F]@', '', $uuid); |
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38 | |||
39 | return ($uuid == ''); |
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40 | } |
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41 | |||
6 | daniel-mar | 42 | # TODO: Don't echo |
3 | daniel-mar | 43 | function uuid_info($uuid) { |
44 | if (!uuid_valid($uuid)) return false; |
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45 | |||
46 | # $uuid = str_replace(array('-', '{', '}'), '', $uuid); |
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47 | $uuid = strtoupper($uuid); |
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48 | $uuid = preg_replace('@[^0-9A-F]@', '', $uuid); |
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49 | |||
50 | $x = hexdec(substr($uuid, 16, 1)); |
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51 | if ($x >= 14 /* 1110 */) $variant = 3; |
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52 | else if ($x >= 12 /* 1100 */) $variant = 2; |
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53 | else if ($x >= 8 /* 1000 */) $variant = 1; |
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54 | else if ($x >= 0 /* 0000 */) $variant = 0; |
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55 | |||
56 | |||
57 | switch ($variant) { |
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58 | case 0: |
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59 | echo sprintf("%-24s %s\n", "Variant:", "[0xx] NCS (reserved for backward compatibility)"); |
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60 | |||
61 | /* |
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62 | * Internal structure of variant #0 UUIDs |
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63 | * |
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64 | * The first 6 octets are the number of 4 usec units of time that have |
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65 | * passed since 1/1/80 0000 GMT. The next 2 octets are reserved for |
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66 | * future use. The next octet is an address family. The next 7 octets |
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67 | * are a host ID in the form allowed by the specified address family. |
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68 | * |
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69 | * Note that while the family field (octet 8) was originally conceived |
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70 | * of as being able to hold values in the range [0..255], only [0..13] |
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71 | * were ever used. Thus, the 2 MSB of this field are always 0 and are |
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72 | * used to distinguish old and current UUID forms. |
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73 | * |
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74 | * +--------------------------------------------------------------+ |
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75 | * | high 32 bits of time | 0-3 .time_high |
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76 | * +-------------------------------+------------------------------- |
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77 | * | low 16 bits of time | 4-5 .time_low |
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78 | * +-------+-----------------------+ |
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79 | * | reserved | 6-7 .reserved |
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80 | * +---------------+---------------+ |
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81 | * | family | 8 .family |
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82 | * +---------------+----------...-----+ |
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83 | * | node ID | 9-16 .node |
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84 | * +--------------------------...-----+ |
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85 | * |
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86 | */ |
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87 | |||
88 | // Example of an UUID: 333a2276-0000-0000-0d00-00809c000000 |
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89 | |||
90 | # TODO: See https://github.com/cjsv/uuid/blob/master/Doc |
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91 | |||
92 | # Timestamp: Count of 4us intervals since 01 Jan 1980 00:00:00 GMT |
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93 | # 1/0,000004 = 250000 |
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94 | # Seconds between 1970 and 1980 : 315532800 |
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95 | # 250000*315532800=78883200000000 |
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96 | $timestamp = substr($uuid, 0, 12); |
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97 | $ts = gmp_init($timestamp, 16); |
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98 | $ts = gmp_add($ts, gmp_init("78883200000000")); |
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9 | daniel-mar | 99 | $ms = gmp_mod($ts, gmp_init("250000")); |
3 | daniel-mar | 100 | $ts = gmp_div($ts, gmp_init("250000")); |
101 | $ts = gmp_strval($ts); |
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102 | $ms = gmp_strval($ms); |
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9 | daniel-mar | 103 | $ts = gmdate('Y-m-d H:i:s', $ts)."'".str_pad($ms, 7, '0', STR_PAD_LEFT).' GMT'; |
104 | echo sprintf("%-24s %s\n", "Timestamp:", "[0x$timestamp] $ts"); |
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3 | daniel-mar | 105 | |
106 | $reserved = substr($uuid, 12, 4); |
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107 | echo sprintf("%-24s %s\n", "Reserved:", "0x$reserved"); |
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108 | |||
109 | # Family 13 (dds) looks like node is 00 | nnnnnn 000000. |
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110 | # Family 2 is presumably (ip). |
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111 | # Not sure if anything else was used. |
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112 | $family_hex = substr($uuid, 16, 2); |
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113 | $family_dec = hexdec($family_hex); |
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114 | if ($family_dec == 2) { |
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115 | $family_ = 'IP'; |
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116 | } else if ($family_dec == 13) { |
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117 | $family_ = 'DDS (Data Link)'; |
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118 | } else { |
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9 | daniel-mar | 119 | $family_ = "Unknown ($family_dec)"; # There are probably no more families |
3 | daniel-mar | 120 | } |
121 | echo sprintf("%-24s %s\n", "Family:", "[0x$family_hex = $family_dec] $family_"); |
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122 | |||
123 | $nodeid = substr($uuid, 18, 14); |
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124 | echo sprintf("%-24s %s\n", "Node ID:", "0x$nodeid"); |
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125 | # TODO: interprete node id (the family specifies it) |
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126 | |||
127 | break; |
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128 | case 1: |
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129 | echo sprintf("%-24s %s\n", "Variant:", "[10x] RFC 4122 (Leach-Mealling-Salz)"); |
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130 | |||
131 | $version = hexdec(substr($uuid, 12, 1)); |
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132 | switch ($version) { |
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133 | case 1: |
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134 | echo sprintf("%-24s %s\n", "Version:", "[1] Time-based with unique random host identifier"); |
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135 | |||
136 | # Timestamp: Count of 100ns intervals since 15 Oct 1582 00:00:00 |
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137 | # 1/0,0000001 = 10000000 |
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138 | $timestamp = substr($uuid, 13, 3).substr($uuid, 8, 4).substr($uuid, 0, 8); |
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139 | $ts = gmp_init($timestamp, 16); |
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140 | $ts = gmp_sub($ts, gmp_init("122192928000000000")); |
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9 | daniel-mar | 141 | $ms = gmp_mod($ts, gmp_init("10000000")); |
3 | daniel-mar | 142 | $ts = gmp_div($ts, gmp_init("10000000")); |
143 | $ts = gmp_strval($ts); |
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144 | $ms = gmp_strval($ms); |
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9 | daniel-mar | 145 | $ts = gmdate('Y-m-d H:i:s', $ts)."'".str_pad($ms, 7, '0', STR_PAD_LEFT).' GMT'; |
146 | echo sprintf("%-24s %s\n", "Timestamp:", "[0x$timestamp] $ts"); |
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3 | daniel-mar | 147 | |
148 | $x = hexdec(substr($uuid, 16, 4)); |
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9 | daniel-mar | 149 | $dec = $x & 0x3FFF; // The highest 2 bits are used by "variant" (10x) |
150 | $hex = substr($uuid, 16, 4); |
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151 | echo sprintf("%-24s %s\n", "Clock ID:", "[0x$hex] $dec"); |
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3 | daniel-mar | 152 | |
153 | $x = substr($uuid, 20, 12); |
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154 | $nodeid = ''; |
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155 | for ($i=0; $i<6; $i++) { |
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156 | $nodeid .= substr($x, $i*2, 2); |
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157 | if ($i != 5) $nodeid .= ':'; |
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158 | } |
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159 | echo sprintf("%-24s %s\n", "Node ID:", "$nodeid"); |
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160 | |||
161 | if (function_exists('decode_mac')) { |
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162 | echo "\nIn case that this Node ID is a MAC address, here is the interpretation of that MAC address:\n"; |
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163 | echo decode_mac($nodeid); |
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164 | } |
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165 | |||
166 | break; |
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167 | case 2: |
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9 | daniel-mar | 168 | echo sprintf("%-24s %s\n", "Version:", "[2] DCE Security version"); |
3 | daniel-mar | 169 | |
14 | daniel-mar | 170 | # 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. |
3 | daniel-mar | 171 | $x = substr($uuid, 0, 8); |
172 | echo sprintf("%-24s %s\n", "Local ID:", "0x$x"); |
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173 | |||
174 | # 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". |
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9 | daniel-mar | 175 | $x = substr($uuid, 18, 2); |
176 | if ($x == '00') $domain_info = 'POSIX: User-ID / Non-POSIX: site-defined'; |
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177 | else if ($x == '01') $domain_info = 'POSIX: Group-ID / Non-POSIX: site-defined'; |
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178 | else $domain_info = 'site-defined'; |
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179 | echo sprintf("%-24s %s\n", "Local Domain:", "0x$x ($domain_info)"); |
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3 | daniel-mar | 180 | |
181 | # Timestamp: Count of 100ns intervals since 15 Oct 1582 00:00:00 |
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182 | # 1/0,0000001 = 10000000 |
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9 | daniel-mar | 183 | $timestamp = substr($uuid, 13, 3).substr($uuid, 8, 4).'00000000'; |
3 | daniel-mar | 184 | $ts = gmp_init($timestamp, 16); |
185 | $ts = gmp_sub($ts, gmp_init("122192928000000000")); |
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9 | daniel-mar | 186 | $ms = gmp_mod($ts, gmp_init("10000000")); |
3 | daniel-mar | 187 | $ts = gmp_div($ts, gmp_init("10000000")); |
188 | $ts = gmp_strval($ts); |
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189 | $ms = gmp_strval($ms); |
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9 | daniel-mar | 190 | $ts_min = gmdate('Y-m-d H:i:s', $ts)."'".str_pad($ms, 7, '0', STR_PAD_LEFT).' GMT'; |
3 | daniel-mar | 191 | |
9 | daniel-mar | 192 | $timestamp = substr($uuid, 13, 3).substr($uuid, 8, 4).'FFFFFFFF'; |
193 | $ts = gmp_init($timestamp, 16); |
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194 | $ts = gmp_sub($ts, gmp_init("122192928000000000")); |
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195 | $ms = gmp_mod($ts, gmp_init("10000000")); |
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196 | $ts = gmp_div($ts, gmp_init("10000000")); |
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197 | $ts = gmp_strval($ts); |
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198 | $ms = gmp_strval($ms); |
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199 | $ts_max = gmdate('Y-m-d H:i:s', $ts)."'".str_pad($ms, 7, '0', STR_PAD_LEFT).' GMT'; |
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3 | daniel-mar | 200 | |
9 | daniel-mar | 201 | $timestamp = substr($uuid, 13, 3).substr($uuid, 8, 4).'xxxxxxxx'; |
202 | echo sprintf("%-24s %s\n", "Timestamp:", "[0x$timestamp] $ts_min - $ts_max"); |
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203 | |||
204 | $x = hexdec(substr($uuid, 16, 2).'00'); |
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205 | $dec_min = $x & 0x3FFF; // The highest 2 bits are used by "variant" (10x) |
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206 | $x = hexdec(substr($uuid, 16, 2).'FF'); |
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207 | $dec_max = $x & 0x3FFF; // The highest 2 bits are used by "variant" (10x) |
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208 | $hex = substr($uuid, 16, 2).'xx'; |
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209 | echo sprintf("%-24s %s\n", "Clock ID:", "[0x$hex] $dec_min - $dec_max"); |
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210 | |||
3 | daniel-mar | 211 | $x = substr($uuid, 20, 12); |
212 | $nodeid = ''; |
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213 | for ($i=0; $i<6; $i++) { |
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214 | $nodeid .= substr($x, $i*2, 2); |
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215 | if ($i != 5) $nodeid .= ':'; |
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216 | } |
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217 | echo sprintf("%-24s %s\n", "Node ID:", "$nodeid"); |
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218 | |||
219 | if (function_exists('decode_mac')) { |
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220 | echo "\nIn case that this Node ID is a MAC address, here is the interpretation of that MAC address:\n"; |
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221 | echo decode_mac($nodeid); |
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222 | } |
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223 | |||
224 | break; |
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225 | case 3: |
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226 | echo sprintf("%-24s %s\n", "Version:", "[3] Name-based (MD5 hash)"); |
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227 | |||
9 | daniel-mar | 228 | $hash = str_replace('-', '', strtolower($uuid)); |
229 | $hash[12] = '?'; // was overwritten by version |
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230 | $hash[16] = '?'; // was partially overwritten by variant |
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3 | daniel-mar | 231 | |
9 | daniel-mar | 232 | echo sprintf("%-24s %s\n", "MD5(Namespace+Subject):", "$hash"); |
233 | |||
3 | daniel-mar | 234 | break; |
235 | case 4: |
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236 | echo sprintf("%-24s %s\n", "Version:", "[4] Random"); |
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237 | |||
238 | $rand = ''; |
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239 | for ($i=0; $i<16; $i++) { |
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240 | $bin = base_convert(substr($uuid, $i*2, 2), 16, 2); |
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241 | $bin = str_pad($bin, 8, "0", STR_PAD_LEFT); |
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242 | |||
243 | if ($i == 6) { |
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244 | $bin[0] = 'x'; |
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245 | $bin[1] = 'x'; |
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246 | } else if ($i == 8) { |
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247 | $bin[0] = 'x'; |
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248 | $bin[1] = 'x'; |
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249 | $bin[2] = 'x'; |
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250 | $bin[3] = 'x'; |
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251 | } |
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252 | |||
253 | $rand .= "$bin "; |
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254 | } |
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255 | |||
256 | echo sprintf("%-24s %s\n", "Random bits:", trim($rand)); |
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257 | |||
258 | break; |
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259 | case 5: |
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260 | echo sprintf("%-24s %s\n", "Version:", "[5] Name-based (SHA-1 hash)"); |
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261 | |||
9 | daniel-mar | 262 | $hash = str_replace('-', '', strtolower($uuid)); |
263 | $hash[12] = '?'; // was overwritten by version |
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264 | $hash[16] = '?'; // was partially overwritten by variant |
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265 | $hash .= '????????'; // was cut off |
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3 | daniel-mar | 266 | |
9 | daniel-mar | 267 | echo sprintf("%-24s %s\n", "SHA1(Namespace+Subject):", "$hash"); |
268 | |||
269 | |||
3 | daniel-mar | 270 | break; |
271 | default: |
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272 | echo sprintf("%-24s %s\n", "Version:", "[$version] Unknown"); |
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273 | break; |
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274 | } |
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275 | |||
276 | break; |
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277 | case 2: |
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278 | echo sprintf("%-24s %s\n", "Variant:", "[110] Reserved for Microsoft Corporation"); |
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279 | break; |
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280 | case 3: |
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281 | echo sprintf("%-24s %s\n", "Variant:", "[111] Reserved for future use"); |
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282 | break; |
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283 | } |
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284 | } |
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285 | |||
286 | function uuid_canonize($uuid) { |
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287 | if (!uuid_valid($uuid)) return false; |
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288 | return oid_to_uuid(uuid_to_oid($uuid)); |
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289 | } |
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290 | |||
291 | function oid_to_uuid($oid) { |
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292 | if (!is_uuid_oid($oid)) return false; |
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293 | |||
294 | if ($oid[0] == '.') { |
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295 | $oid = substr($oid, 1); |
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296 | } |
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297 | $ary = explode('.', $oid); |
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298 | $val = $ary[2]; |
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299 | |||
300 | $x = gmp_init($val, 10); |
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301 | $y = gmp_strval($x, 16); |
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302 | $y = str_pad($y, 32, "0", STR_PAD_LEFT); |
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303 | return substr($y, 0, 8).'-'. |
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304 | substr($y, 8, 4).'-'. |
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305 | substr($y, 12, 4).'-'. |
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306 | substr($y, 16, 4).'-'. |
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307 | substr($y, 20, 12); |
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308 | } |
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309 | |||
310 | function is_uuid_oid($oid, $only_allow_root=false) { |
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9 | daniel-mar | 311 | if ($oid[0] == '.') $oid = substr($oid, 1); // remove leading dot |
3 | daniel-mar | 312 | |
313 | $ary = explode('.', $oid); |
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314 | |||
315 | if ($only_allow_root) { |
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316 | if (count($ary) != 3) return false; |
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317 | } |
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318 | |||
9 | daniel-mar | 319 | if ($ary[0] != '2') return false; |
320 | if ($ary[1] != '25') return false; |
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3 | daniel-mar | 321 | for ($i=2; $i<count($ary); $i++) { |
322 | $v = $ary[$i]; |
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323 | if (!is_numeric($v)) return false; |
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9 | daniel-mar | 324 | if ($i == 2) { |
325 | // Must be in the range of 128 bit UUID |
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326 | $test = gmp_init($v, 10); |
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327 | if (strlen(gmp_strval($test, 16)) > 32) return false; |
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328 | } |
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3 | daniel-mar | 329 | if ($v < 0) return false; |
330 | } |
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331 | |||
332 | return true; |
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333 | } |
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334 | |||
335 | function uuid_to_oid($uuid) { |
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336 | if (!uuid_valid($uuid)) return false; |
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337 | |||
338 | $uuid = str_replace(array('-', '{', '}'), '', $uuid); |
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339 | $x = gmp_init($uuid, 16); |
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6 | daniel-mar | 340 | return '2.25.'.gmp_strval($x, 10); # TODO: parameter with or without leading dot |
3 | daniel-mar | 341 | } |
342 | |||
9 | daniel-mar | 343 | function gen_uuid($prefer_timebased = true) { |
14 | daniel-mar | 344 | $uuid = $prefer_timebased ? gen_uuid_timebased() : false; |
9 | daniel-mar | 345 | if ($uuid === false) $uuid = gen_uuid_random(); |
346 | return $uuid; |
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3 | daniel-mar | 347 | } |
348 | |||
9 | daniel-mar | 349 | // Version 1 (Time based) UUID |
350 | function gen_uuid_timebased() { |
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14 | daniel-mar | 351 | # On Debian: apt-get install php-uuid |
3 | daniel-mar | 352 | # extension_loaded('uuid') |
353 | if (function_exists('uuid_create')) { |
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354 | # OSSP uuid extension like seen in php5-uuid at Debian 8 |
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355 | /* |
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356 | $x = uuid_create($context); |
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9 | daniel-mar | 357 | uuid_make($context, UUID_MAKE_V1); |
3 | daniel-mar | 358 | uuid_export($context, UUID_FMT_STR, $uuid); |
359 | return trim($uuid); |
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360 | */ |
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361 | |||
362 | # PECL uuid extension like seen in php-uuid at Debian 9 |
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9 | daniel-mar | 363 | return trim(uuid_create(UUID_TYPE_TIME)); |
3 | daniel-mar | 364 | } |
365 | |||
14 | daniel-mar | 366 | # On Debian: apt-get install uuid-runtime |
367 | if (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') { |
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368 | $out = array(); |
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369 | $ec = -1; |
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370 | exec('uuidgen -t 2>/dev/null', $out, $ec); |
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371 | if ($ec == 0) return $out[0]; |
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372 | } |
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3 | daniel-mar | 373 | |
14 | daniel-mar | 374 | # If we hadn't any success yet, then implement the time based generation routine ourselves! |
375 | # Based on https://github.com/fredriklindberg/class.uuid.php/blob/master/class.uuid.php |
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376 | |||
377 | $uuid = array( |
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378 | 'time_low' => 0, /* 32-bit */ |
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379 | 'time_mid' => 0, /* 16-bit */ |
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380 | 'time_hi' => 0, /* 16-bit */ |
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381 | 'clock_seq_hi' => 0, /* 8-bit */ |
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382 | 'clock_seq_low' => 0, /* 8-bit */ |
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383 | 'node' => array() /* 48-bit */ |
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384 | ); |
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385 | |||
386 | /* |
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387 | * Get current time in 100 ns intervals. The magic value |
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388 | * is the offset between UNIX epoch and the UUID UTC |
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389 | * time base October 15, 1582. |
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390 | */ |
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391 | $tp = gettimeofday(); |
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392 | $time = ($tp['sec'] * 10000000) + ($tp['usec'] * 10) + 0x01B21DD213814000; |
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393 | |||
394 | $uuid['time_low'] = $time & 0xffffffff; |
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395 | /* Work around PHP 32-bit bit-operation limits */ |
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396 | $high = intval($time / 0xffffffff); |
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397 | $uuid['time_mid'] = $high & 0xffff; |
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398 | $uuid['time_hi'] = (($high >> 16) & 0xfff) | (1/*TimeBased*/ << 12); |
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399 | |||
400 | /* |
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401 | * We don't support saved state information and generate |
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402 | * a random clock sequence each time. |
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403 | */ |
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404 | $uuid['clock_seq_hi'] = 0x80 | mt_rand(0, 64); |
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405 | $uuid['clock_seq_low'] = mt_rand(0, 255); |
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406 | |||
407 | /* |
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408 | * Node should be set to the 48-bit IEEE node identifier |
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409 | */ |
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410 | $mac = get_mac_address(); |
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411 | if ($mac) { |
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412 | $node = str_replace(':','',$mac); |
||
413 | for ($i = 0; $i < 6; $i++) { |
||
414 | $uuid['node'][$i] = hexdec(substr($node, $i*2, 2)); |
||
415 | } |
||
416 | |||
417 | /* |
||
418 | * Now output the UUID |
||
419 | */ |
||
420 | return sprintf( |
||
421 | '%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x', |
||
422 | ($uuid['time_low']), ($uuid['time_mid']), ($uuid['time_hi']), |
||
423 | $uuid['clock_seq_hi'], $uuid['clock_seq_low'], |
||
424 | $uuid['node'][0], $uuid['node'][1], $uuid['node'][2], |
||
425 | $uuid['node'][3], $uuid['node'][4], $uuid['node'][5]); |
||
426 | } |
||
427 | |||
428 | # We cannot generate the timebased UUID! |
||
9 | daniel-mar | 429 | return false; |
430 | } |
||
431 | |||
14 | daniel-mar | 432 | function get_mac_address() { |
433 | static $detected_mac = false; |
||
434 | |||
435 | if ($detected_mac !== false) { // false NOT null! |
||
436 | return $detected_mac; |
||
437 | } |
||
438 | |||
439 | // TODO: This should actually be part of mac_utils.inc.php, but we need it |
||
440 | // here, and mac_utils.inc.php shall only be optional. What to do? |
||
441 | if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') { |
||
442 | // Windows |
||
443 | $cmds = array( |
||
444 | "ipconfig /all", // faster |
||
445 | "getmac" |
||
446 | ); |
||
447 | foreach ($cmds as $cmd) { |
||
448 | $out = array(); |
||
449 | $ec = -1; |
||
450 | exec($cmd, $out, $ec); |
||
451 | if ($ec == 0) { |
||
452 | $out = implode("\n",$out); |
||
453 | $m = array(); |
||
454 | 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)) { |
||
455 | $detected_mac = str_replace('-', ':', strtolower($m[1])); |
||
456 | return $detected_mac; |
||
457 | } |
||
458 | } |
||
459 | } |
||
460 | } else if (strtoupper(PHP_OS) == 'DARWIN') { |
||
461 | // Mac OS X |
||
462 | $cmds = array( |
||
463 | "networksetup -listallhardwareports 2>/dev/null", |
||
464 | "netstat -i 2>/dev/null" |
||
465 | ); |
||
466 | foreach ($cmds as $cmd) { |
||
467 | $out = array(); |
||
468 | $ec = -1; |
||
469 | exec($cmd, $out, $ec); |
||
470 | if ($ec == 0) { |
||
471 | $out = implode("\n",$out); |
||
472 | $m = array(); |
||
473 | 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)) { |
||
474 | $detected_mac = $m[1]; |
||
475 | return $detected_mac; |
||
476 | } |
||
477 | } |
||
478 | } |
||
479 | } else { |
||
480 | // Linux |
||
481 | foreach (glob('/sys/class/net/'.'*'.'/address') as $x) { |
||
482 | if (!strstr($x,'/lo/')) { |
||
483 | $detected_mac = trim(file_get_contents($x)); |
||
484 | return $detected_mac; |
||
485 | } |
||
486 | } |
||
487 | $cmds = array( |
||
488 | "netstat -ie 2>/dev/null", |
||
489 | "ifconfig 2>/dev/null" // only available for root (because it is in sbin) |
||
490 | ); |
||
491 | foreach ($cmds as $cmd) { |
||
492 | $out = array(); |
||
493 | $ec = -1; |
||
494 | exec($cmd, $out, $ec); |
||
495 | if ($ec == 0) { |
||
496 | $out = implode("\n",$out); |
||
497 | $m = array(); |
||
498 | 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)) { |
||
499 | $detected_mac = $m[1]; |
||
500 | return $detected_mac; |
||
501 | } |
||
502 | } |
||
503 | } |
||
504 | } |
||
505 | |||
506 | $detected_mac = null; |
||
507 | return $detected_mac; |
||
508 | } |
||
509 | |||
9 | daniel-mar | 510 | // Version 2 (DCE Security) UUID |
511 | function gen_uuid_dce($domain, $id) { |
||
512 | # Start with a version 1 UUID |
||
513 | $uuid = gen_uuid_timebased(); |
||
514 | |||
515 | # Add ID |
||
516 | $uuid = str_pad(dechex($id), 8, '0', STR_PAD_LEFT) . substr($uuid, 8); |
||
517 | |||
518 | # Add domain |
||
519 | $uuid = substr($uuid,0,21) . str_pad(dechex($domain), 2, '0', STR_PAD_LEFT) . substr($uuid, 23); |
||
520 | |||
521 | # Change version to 2 |
||
522 | $uuid[14] = '2'; |
||
523 | |||
524 | return $uuid; |
||
525 | } |
||
526 | |||
527 | // Version 3 (MD5 name based) UUID |
||
528 | function gen_uuid_md5_namebased($namespace_uuid, $name) { |
||
529 | if (!uuid_valid($namespace_uuid)) return false; |
||
530 | $namespace_uuid = uuid_canonize($namespace_uuid); |
||
531 | $namespace_uuid = str_replace('-', '', $namespace_uuid); |
||
532 | $namespace_uuid = hex2bin($namespace_uuid); |
||
533 | |||
534 | $hash = md5($namespace_uuid.$name); |
||
535 | $hash[12] = '3'; // Set version: 3 = MD5 |
||
536 | $hash[16] = dechex(hexdec($hash[16]) & 0x3 | 0x8); // Set variant to "10xx" (RFC4122) |
||
537 | |||
538 | return substr($hash, 0, 8).'-'. |
||
539 | substr($hash, 8, 4).'-'. |
||
540 | substr($hash, 12, 4).'-'. |
||
541 | substr($hash, 16, 4).'-'. |
||
542 | substr($hash, 20, 12); |
||
543 | } |
||
544 | |||
545 | // Version 4 (Random) UUID |
||
546 | function gen_uuid_random() { |
||
14 | daniel-mar | 547 | # On Debian: apt-get install php-uuid |
9 | daniel-mar | 548 | # extension_loaded('uuid') |
549 | if (function_exists('uuid_create')) { |
||
550 | # OSSP uuid extension like seen in php5-uuid at Debian 8 |
||
551 | /* |
||
552 | $x = uuid_create($context); |
||
553 | uuid_make($context, UUID_MAKE_V4); |
||
554 | uuid_export($context, UUID_FMT_STR, $uuid); |
||
555 | return trim($uuid); |
||
556 | */ |
||
557 | |||
558 | # PECL uuid extension like seen in php-uuid at Debian 9 |
||
559 | return trim(uuid_create(UUID_TYPE_RANDOM)); |
||
3 | daniel-mar | 560 | } |
561 | |||
14 | daniel-mar | 562 | if (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') { |
563 | # On Debian: apt-get install uuid-runtime |
||
564 | $out = array(); |
||
565 | $ec = -1; |
||
566 | exec('uuidgen -r 2>/dev/null', $out, $ec); |
||
567 | if ($ec == 0) return $out[0]; |
||
3 | daniel-mar | 568 | |
14 | daniel-mar | 569 | # On Debian Jessie: UUID V4 (Random) |
570 | if (file_exists('/proc/sys/kernel/random/uuid')) { |
||
571 | return file_get_contents('/proc/sys/kernel/random/uuid'); |
||
572 | } |
||
3 | daniel-mar | 573 | } |
574 | |||
9 | daniel-mar | 575 | # Make the UUID by ourselves |
576 | # Source: http://rogerstringer.com/2013/11/15/generate-uuids-php |
||
577 | return sprintf( '%04x%04x-%04x-%04x-%04x-%04x%04x%04x', |
||
578 | mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff ), |
||
579 | mt_rand( 0, 0xffff ), |
||
580 | mt_rand( 0, 0x0fff ) | 0x4000, |
||
581 | mt_rand( 0, 0x3fff ) | 0x8000, |
||
582 | mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff ) |
||
583 | ); |
||
3 | daniel-mar | 584 | } |
585 | |||
9 | daniel-mar | 586 | // Version 5 (SHA1 name based) UUID |
587 | function gen_uuid_sha1_namebased($namespace_uuid, $name) { |
||
588 | $namespace_uuid = str_replace('-', '', $namespace_uuid); |
||
589 | $namespace_uuid = hex2bin($namespace_uuid); |
||
590 | |||
591 | $hash = sha1($namespace_uuid.$name); |
||
592 | $hash[12] = '5'; // Set version: 5 = SHA1 |
||
593 | $hash[16] = dechex(hexdec($hash[16]) & 0x3 | 0x8); // Set variant to "10xx" (RFC4122) |
||
594 | |||
595 | return substr($hash, 0, 8).'-'. |
||
596 | substr($hash, 8, 4).'-'. |
||
597 | substr($hash, 12, 4).'-'. |
||
598 | substr($hash, 16, 4).'-'. |
||
599 | substr($hash, 20, 12); |
||
600 | } |
||
601 | |||
3 | daniel-mar | 602 | function uuid_numeric_value($uuid) { |
603 | $oid = uuid_to_oid($uuid); |
||
604 | if (!$oid) return false; |
||
605 | return substr($oid, strlen('2.25.')); |
||
606 | } |
||
607 | |||
608 | function uuid_c_syntax($uuid) { |
||
609 | $uuid = str_replace('{', '', $uuid); |
||
610 | return '{ 0x' . substr($uuid, 0, 8) . |
||
611 | ', 0x' . substr($uuid, 9, 4) . |
||
612 | ', 0x' . substr($uuid, 14, 4) . |
||
613 | ', { 0x' . substr($uuid, 19, 2). |
||
614 | ', 0x' . substr($uuid, 21, 2) . |
||
615 | ', 0x' . substr($uuid, 24, 2) . |
||
616 | ', 0x' . substr($uuid, 26, 2) . |
||
617 | ', 0x' . substr($uuid, 28, 2) . |
||
618 | ', 0x' . substr($uuid, 30, 2) . |
||
619 | ', 0x' . substr($uuid, 32, 2) . |
||
620 | ', 0x' . substr($uuid, 34, 2) . ' } }'; |
||
621 | } |
||
622 | |||
623 | # --- |
||
624 | |||
625 | // http://php.net/manual/de/function.hex2bin.php#113057 |
||
626 | if ( !function_exists( 'hex2bin' ) ) { |
||
627 | function hex2bin( $str ) { |
||
628 | $sbin = ""; |
||
629 | $len = strlen( $str ); |
||
630 | for ( $i = 0; $i < $len; $i += 2 ) { |
||
631 | $sbin .= pack( "H*", substr( $str, $i, 2 ) ); |
||
632 | } |
||
633 | |||
634 | return $sbin; |
||
635 | } |
||
636 | } |