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;
31 private $is_server_addr = false;
33 public function __construct($initial_value) {
34 for($i = 0; $i < 8; $i++) {
37 if($initial_value == null) {
39 } elseif(preg_match(self::$pattern_IPv6, $initial_value)) {
40 $this->parseIPv6($initial_value);
41 } elseif(preg_match(self::$pattern_IPv4, $initial_value)) {
42 $this->parseIPv4($initial_value);
44 $this->parseNumeric($initial_value);
48 public function parseNumeric($numeric) {
49 if(strlen($numeric) == 6) { //IPv4
50 $value = Numerics::numToInt($numeric);
51 $this->ip6[6] = ($value & 0xffff0000) >> 16;
52 $this->ip6[7] = ($value & 0x0000ffff);
53 $this->addr_is_ipv6 = false;
56 for($i = 0; $i < strlen($numeric);) {
57 if($numeric[$i] == "_") {
58 $rightBlocks = (strlen($numeric) - $i - 1) / 3;
59 $skipBlocks = 8 - $j - $rightBlocks;
63 $value = Numerics::numToInt($numeric[$i].$numeric[$i+1].$numeric[$i+2]);
64 $this->ip6[$j++] = dechex($value);
68 $this->addr_is_ipv6 = true;
72 public function parseIPv6($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);
85 $this->addr_is_ipv6 = true;
88 public function parseIPv4($ipv4) {
89 $ipv4blocks = explode(".",$ipv4);
90 $this->ip6[6] = intval($ipv4blocks[0]) << 8;
91 $this->ip6[6] |= intval($ipv4blocks[1]);
92 $this->ip6[7] = intval($ipv4blocks[2]) << 8;
93 $this->ip6[7] |= intval($ipv4blocks[3]);
94 $this->addr_is_ipv6 = false;
97 public function isIPv6() {
98 return $this->addr_is_ipv6;
101 public function setServerAddr($serverAddr) {
102 $this->is_server_addr = $serverAddr;
105 public function isServerAddr() {
106 return $this->is_server_addr;
109 public function isLocalAddress($serverAddr = false) {
110 /* checks if address is out of:
118 * if $serverAddr is true also return true for server IP's
120 if($this->addr_is_ipv6) {
122 (($this->ip6[0] & 0xFE00) == 0xFC00) || /* fc00::/7 */
123 ($this->ip6[0] == 0 && $this->ip6[1] == 0 && $this->ip6[2] == 0 && $this->ip6[3] == 0 &&
124 $this->ip6[4] == 0 && $this->ip6[5] == 0 && $this->ip6[6] == 0 && $this->ip6[7] == 1)
129 (($this->ip6[6] & 0xFFFF) == 0x7F00 && ($this->ip6[7] & 0xFFFF) == 0x0001) || /* 127.0.0.1/32 */
130 (($this->ip6[6] & 0xFF00) == 0x0A00) || /* 10.0.0.0/8 */
131 (($this->ip6[6] & 0xFFF0) == 0xAC10) || /* 172.16.0.0/12 */
132 (($this->ip6[6] & 0xFFFF) == 0xC0A8) /* 192.168.0.0/16 */
136 if($serverAddr && $this->is_server_addr)
141 public function getAddress() {
142 if($this->isIPv6()) {
146 for ($i = 0; $i < 8; $i++) {
147 if ($this->ip6[$i] == 0)
149 else if ($curr_zeros > $max_zeros) {
150 $max_start = $i - $curr_zeros;
151 $max_zeros = $curr_zeros;
155 if ($curr_zeros > $max_zeros) {
156 $max_start = $i - $curr_zeros;
157 $max_zeros = $curr_zeros;
160 for($i = 0; $i < 8; $i++) {
161 if($max_zeros > 1 && $i == $max_start) {
163 $i += $max_zeros - 1;
165 if($ipv6 != "") $ipv6 .= ":";
166 $ipv6 .= dechex($this->ip6[$i]);
172 $ipv4[0] = ($this->ip6[6] >> 8) & 0xff;
173 $ipv4[1] = ($this->ip6[6]) & 0xff;
174 $ipv4[2] = ($this->ip6[7] >> 8) & 0xff;
175 $ipv4[3] = ($this->ip6[7]) & 0xff;
176 return implode(".", $ipv4);
180 public function getNumeric() {
181 if($this->isIPv6()) {
185 for ($i = 0; $i < 8; $i++) {
186 if ($this->ip6[$i] == 0)
188 else if ($curr_zeros > $max_zeros) {
189 $max_start = $i - $curr_zeros;
190 $max_zeros = $curr_zeros;
194 if ($curr_zeros > $max_zeros) {
195 $max_start = $i - $curr_zeros;
196 $max_zeros = $curr_zeros;
199 for($i = 0; $i < 8; $i++) {
200 if($max_zeros > 0 && $i == $max_start) {
202 $i += $max_zeros - 1;
204 $ipv6 .= Numerics::intToNum($this->ip6[$i],3);
210 $ipv4[0] = Numerics::intToNum($this->ip6[6], 3);
211 $ipv4[1] = Numerics::intToNum($this->ip6[7], 3);
212 return $ipv4[0].$ipv4[1];