2 /********************************* PHP-P10 ******************************
3 * P10 uplink class by pk910 (c)2011 pk910 *
4 ************************************************************************
7 * PHP-P10 is free software; you can redistribute it and/or modify *
8 * it under the terms of the GNU General Public License as published by *
9 * the Free Software Foundation; either version 2 of the License, or *
10 * (at your option) any later version. *
12 * This program is distributed in the hope that it will be useful, *
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
15 * GNU General Public License for more details. *
17 * You should have received a copy of the GNU General Public License *
18 * along with PHP-P10; if not, write to the Free Software Foundation, *
19 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. *
21 ************************************************************************
23 * Uplink/IpAddr.class.php
25 * This class represents an IPv4 or IPv6 address.
30 private static $pattern_IPv6 = '/^((([0-9A-Fa-f]{1,4}:){7}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){6}:[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){5}:([0-9A-Fa-f]{1,4}:)?[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){4}:([0-9A-Fa-f]{1,4}:){0,2}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){3}:([0-9A-Fa-f]{1,4}:){0,3}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){2}:([0-9A-Fa-f]{1,4}:){0,4}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){6}((\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b)\.){3}(\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b))|(([0-9A-Fa-f]{1,4}:){0,5}:((\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b)\.){3}(\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b))|(::([0-9A-Fa-f]{1,4}:){0,5}((\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b)\.){3}(\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b))|([0-9A-Fa-f]{1,4}::([0-9A-Fa-f]{1,4}:){0,5}[0-9A-Fa-f]{1,4})|(::([0-9A-Fa-f]{1,4}:){0,6}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){1,7}:))(|\/[0-9]{1,3})$/';
31 private static $pattern_IPv4 = '/^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}(|\/[0-9]{1,2})$/';
32 private $ip6 = array();
33 private $addr_is_ipv6 = false;
35 public function __construct($initial_value) {
36 for($i = 0; $i < 8; $i++) {
39 if($initial_value == null) {
41 } elseif(preg_match(self::$pattern_IPv6, $initial_value)) {
42 $this->parseIPv6($initial_value);
43 } elseif(preg_match(self::$pattern_IPv4, $initial_value)) {
44 $this->parseIPv4($initial_value);
46 $this->parseNumeric($initial_value);
50 public function parseNumeric($numeric) {
51 if(strlen($numeric) == 6) { //IPv4
52 $value = Numerics::numToInt($numeric);
53 $this->ip6[6] = ($value & 0xffff0000) >> 16;
54 $this->ip6[7] = ($value & 0x0000ffff);
55 $this->addr_is_ipv6 = false;
58 for($i = 0; $i < strlen($numeric);) {
59 if($numeric[$i] == "_") {
60 $rightBlocks = (strlen($numeric) - $i - 1) / 3;
61 $skipBlocks = 8 - $j - $rightBlocks;
64 $value = Numerics::numToInt($numeric[$i].$numeric[$i+1].$numeric[$i+2]);
65 $this->ip6[$j++] = dechex($value);
72 public function parseIPv6($ipv6) {
73 if(substr($ipv6,0,2) == "::") $ipv6 = substr($ipv6, 1);
74 if(substr($ipv6,-2) == "::") $ipv6 = substr($ipv6, 0, -1);
75 $ipv6blocks = explode(":", $ipv6);
77 foreach($ipv6blocks as $i => $block) {
79 $skipBlocks = 8 - count($ipv6blocks);
80 $j += $skipBlocks + 1;
82 $this->ip6[$j++] = hexdec($block);
87 public function parseIPv4($ipv4) {
88 $ipv4blocks = explode(".",$ipv4);
89 $this->ip6[6] = intval($ipv4blocks[0]) << 8;
90 $this->ip6[6] |= intval($ipv4blocks[1]);
91 $this->ip6[7] = intval($ipv4blocks[2]) << 8;
92 $this->ip6[7] |= intval($ipv4blocks[3]);
95 public function isIPv6() {
96 return $this->addr_is_ipv6;
99 public function getAddress() {
100 if($this->isIPv6()) {
104 for ($i = 0; $i < 8; $i++) {
105 if ($this->ip6[$i] == 0)
107 else if ($curr_zeros > $max_zeros) {
108 $max_start = $i - $curr_zeros;
109 $max_zeros = $curr_zeros;
113 if ($curr_zeros > $max_zeros) {
114 $max_start = $i - $curr_zeros;
115 $max_zeros = $curr_zeros;
118 for($i = 0; $i < 8; $i++) {
119 if($max_zeros > 1 && $i == $max_start) {
121 $i += $max_zeros - 1;
123 if($ipv6 != "") $ipv6 .= ":";
124 $ipv6 .= dechex($this->ip6[$i]);
130 $ipv4[0] = ($this->ip6[6] >> 8) & 0xff;
131 $ipv4[1] = ($this->ip6[6]) & 0xff;
132 $ipv4[2] = ($this->ip6[7] >> 8) & 0xff;
133 $ipv4[3] = ($this->ip6[7]) & 0xff;
134 return implode(".", $ipv4);
138 public function getNumeric() {
139 if($this->isIPv6()) {
143 for ($i = 0; $i < 8; $i++) {
144 if ($this->ip6[$i] == 0)
146 else if ($curr_zeros > $max_zeros) {
147 $max_start = $i - $curr_zeros;
148 $max_zeros = $curr_zeros;
152 if ($curr_zeros > $max_zeros) {
153 $max_start = $i - $curr_zeros;
154 $max_zeros = $curr_zeros;
157 for($i = 0; $i < 8; $i++) {
158 if($max_zeros > 0 && $i == $max_start) {
160 $i += $max_zeros - 1;
162 $ipv6 .= Numerics::intToNum($this->ip6[$i],3);
168 $ipv4[0] = Numerics::intToNum($this->ip6[6], 3);
169 $ipv4[1] = Numerics::intToNum($this->ip6[7], 3);
170 return $ipv4[0].$ipv4[1];