2 /******************************* PHP-P10 v2 *****************************
3 * Copyright (C) 2011-2012 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 $this->addr_is_ipv6;
100 public function isLocalAddress() {
101 /* checks if address is out of:
109 if($this->addr_is_ipv6) {
111 (($this->ip6[0] & 0xFE00) == 0xFC00) || /* fc00::/7 */
112 ($this->ip6[0] == 0 && $this->ip6[1] == 0 && $this->ip6[2] == 0 && $this->ip6[3] == 0 &&
113 $this->ip6[4] == 0 && $this->ip6[5] == 0 && $this->ip6[6] == 0 && $this->ip6[7] == 1)
118 (($this->ip6[6] & 0xFFFF) == 0x7F00 && ($this->ip6[7] & 0xFFFF) == 0x0001) || /* 127.0.0.1/32 */
119 (($this->ip6[6] & 0xFF00) == 0x0A00) || /* 10.0.0.0/8 */
120 (($this->ip6[6] & 0xFFF0) == 0xAC10) || /* 172.16.0.0/12 */
121 (($this->ip6[6] & 0xFFFF) == 0xC0A8) /* 192.168.0.0/16 */
128 public function getAddress() {
129 if($this->isIPv6()) {
133 for ($i = 0; $i < 8; $i++) {
134 if ($this->ip6[$i] == 0)
136 else if ($curr_zeros > $max_zeros) {
137 $max_start = $i - $curr_zeros;
138 $max_zeros = $curr_zeros;
142 if ($curr_zeros > $max_zeros) {
143 $max_start = $i - $curr_zeros;
144 $max_zeros = $curr_zeros;
147 for($i = 0; $i < 8; $i++) {
148 if($max_zeros > 1 && $i == $max_start) {
150 $i += $max_zeros - 1;
152 if($ipv6 != "") $ipv6 .= ":";
153 $ipv6 .= dechex($this->ip6[$i]);
159 $ipv4[0] = ($this->ip6[6] >> 8) & 0xff;
160 $ipv4[1] = ($this->ip6[6]) & 0xff;
161 $ipv4[2] = ($this->ip6[7] >> 8) & 0xff;
162 $ipv4[3] = ($this->ip6[7]) & 0xff;
163 return implode(".", $ipv4);
167 public function getNumeric() {
168 if($this->isIPv6()) {
172 for ($i = 0; $i < 8; $i++) {
173 if ($this->ip6[$i] == 0)
175 else if ($curr_zeros > $max_zeros) {
176 $max_start = $i - $curr_zeros;
177 $max_zeros = $curr_zeros;
181 if ($curr_zeros > $max_zeros) {
182 $max_start = $i - $curr_zeros;
183 $max_zeros = $curr_zeros;
186 for($i = 0; $i < 8; $i++) {
187 if($max_zeros > 0 && $i == $max_start) {
189 $i += $max_zeros - 1;
191 $ipv6 .= Numerics::intToNum($this->ip6[$i],3);
197 $ipv4[0] = Numerics::intToNum($this->ip6[6], 3);
198 $ipv4[1] = Numerics::intToNum($this->ip6[7], 3);
199 return $ipv4[0].$ipv4[1];