2 /******************************* PHP-P10 v2 *****************************
3 * Copyright (C) 2011 Philipp Kreil (pk910) *
5 * This program is free software: you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation, either version 3 of the License, or *
8 * (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program. If not, see <http://www.gnu.org/licenses/>. *
18 ************************************************************************
20 * Uplink/IpAddr.class.php
22 * This class represents an IPv4 or IPv6 address.
27 private static $pattern_IPv6 = '/^((([0-9A-Fa-f]{1,4}:){7}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){6}:[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){5}:([0-9A-Fa-f]{1,4}:)?[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){4}:([0-9A-Fa-f]{1,4}:){0,2}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){3}:([0-9A-Fa-f]{1,4}:){0,3}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){2}:([0-9A-Fa-f]{1,4}:){0,4}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){6}((\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b)\.){3}(\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b))|(([0-9A-Fa-f]{1,4}:){0,5}:((\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b)\.){3}(\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b))|(::([0-9A-Fa-f]{1,4}:){0,5}((\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b)\.){3}(\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b))|([0-9A-Fa-f]{1,4}::([0-9A-Fa-f]{1,4}:){0,5}[0-9A-Fa-f]{1,4})|(::([0-9A-Fa-f]{1,4}:){0,6}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){1,7}:))(|\/[0-9]{1,3})$/';
28 private static $pattern_IPv4 = '/^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}(|\/[0-9]{1,2})$/';
29 private $ip6 = array();
30 private $addr_is_ipv6 = false;
32 public function __construct($initial_value) {
33 for($i = 0; $i < 8; $i++) {
36 if($initial_value == null) {
38 } elseif(preg_match(self::$pattern_IPv6, $initial_value)) {
39 $this->parseIPv6($initial_value);
40 } elseif(preg_match(self::$pattern_IPv4, $initial_value)) {
41 $this->parseIPv4($initial_value);
43 $this->parseNumeric($initial_value);
47 public function parseNumeric($numeric) {
48 if(strlen($numeric) == 6) { //IPv4
49 $value = Numerics::numToInt($numeric);
50 $this->ip6[6] = ($value & 0xffff0000) >> 16;
51 $this->ip6[7] = ($value & 0x0000ffff);
52 $this->addr_is_ipv6 = false;
55 for($i = 0; $i < strlen($numeric);) {
56 if($numeric[$i] == "_") {
57 $rightBlocks = (strlen($numeric) - $i - 1) / 3;
58 $skipBlocks = 8 - $j - $rightBlocks;
62 $value = Numerics::numToInt($numeric[$i].$numeric[$i+1].$numeric[$i+2]);
63 $this->ip6[$j++] = dechex($value);
67 $this->addr_is_ipv6 = true;
71 public function parseIPv6($ipv6) {
72 if(substr($ipv6,0,2) == "::") $ipv6 = substr($ipv6, 1);
73 if(substr($ipv6,-2) == "::") $ipv6 = substr($ipv6, 0, -1);
74 $ipv6blocks = explode(":", $ipv6);
76 foreach($ipv6blocks as $i => $block) {
78 $skipBlocks = 8 - count($ipv6blocks);
79 $j += $skipBlocks + 1;
81 $this->ip6[$j++] = hexdec($block);
84 $this->addr_is_ipv6 = true;
87 public function parseIPv4($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]);
93 $this->addr_is_ipv6 = false;
96 public function isIPv6() {
97 return $this->addr_is_ipv6;
100 public function getAddress() {
101 if($this->isIPv6()) {
105 for ($i = 0; $i < 8; $i++) {
106 if ($this->ip6[$i] == 0)
108 else if ($curr_zeros > $max_zeros) {
109 $max_start = $i - $curr_zeros;
110 $max_zeros = $curr_zeros;
114 if ($curr_zeros > $max_zeros) {
115 $max_start = $i - $curr_zeros;
116 $max_zeros = $curr_zeros;
119 for($i = 0; $i < 8; $i++) {
120 if($max_zeros > 1 && $i == $max_start) {
122 $i += $max_zeros - 1;
124 if($ipv6 != "") $ipv6 .= ":";
125 $ipv6 .= dechex($this->ip6[$i]);
131 $ipv4[0] = ($this->ip6[6] >> 8) & 0xff;
132 $ipv4[1] = ($this->ip6[6]) & 0xff;
133 $ipv4[2] = ($this->ip6[7] >> 8) & 0xff;
134 $ipv4[3] = ($this->ip6[7]) & 0xff;
135 return implode(".", $ipv4);
139 public function getNumeric() {
140 if($this->isIPv6()) {
144 for ($i = 0; $i < 8; $i++) {
145 if ($this->ip6[$i] == 0)
147 else if ($curr_zeros > $max_zeros) {
148 $max_start = $i - $curr_zeros;
149 $max_zeros = $curr_zeros;
153 if ($curr_zeros > $max_zeros) {
154 $max_start = $i - $curr_zeros;
155 $max_zeros = $curr_zeros;
158 for($i = 0; $i < 8; $i++) {
159 if($max_zeros > 0 && $i == $max_start) {
161 $i += $max_zeros - 1;
163 $ipv6 .= Numerics::intToNum($this->ip6[$i],3);
169 $ipv4[0] = Numerics::intToNum($this->ip6[6], 3);
170 $ipv4[1] = Numerics::intToNum($this->ip6[7], 3);
171 return $ipv4[0].$ipv4[1];