X-Git-Url: http://git.pk910.de/?p=PHP-P10.git;a=blobdiff_plain;f=Uplink%2FIPAddr.class.php;fp=Uplink%2FIPAddr.class.php;h=217fbe727dfbecb7951d51b86329694925b11801;hp=0000000000000000000000000000000000000000;hb=f1a1066826a5cc04606cc12f0bd0b8e0383ca190;hpb=d551b4197fb637366fa640526fbf914fc1173874

diff --git a/Uplink/IPAddr.class.php b/Uplink/IPAddr.class.php
new file mode 100644
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+++ b/Uplink/IPAddr.class.php
@@ -0,0 +1,176 @@
+<?php
+/********************************* PHP-P10 ******************************
+ *    P10 uplink class by pk910   (c)2011 pk910                         *
+ ************************************************************************
+ *                          Version 2 (OOP)                             *
+ *                                                                      *
+ * PHP-P10 is free software; you can redistribute it and/or modify      *
+ * it under the terms of the GNU General Public License as published by *
+ * the Free Software Foundation; either version 2 of the License, or    *
+ * (at your option) any later version.                                  *
+ *                                                                      *
+ * This program is distributed in the hope that it will be useful,      *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of       *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        *
+ * GNU General Public License for more details.                         *
+ *                                                                      *
+ * You should have received a copy of the GNU General Public License    *
+ * along with PHP-P10; if not, write to the Free Software Foundation,   *
+ * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.       *
+ *                                                                      *
+ ************************************************************************
+ * 
+ *  Uplink/IpAddr.class.php
+ *
+ * This class represents an IPv4 or IPv6 address.
+ *
+ */
+
+class IPAddr {
+	private static $pattern_IPv6 = '/^((([0-9A-Fa-f]{1,4}:){7}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){6}:[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){5}:([0-9A-Fa-f]{1,4}:)?[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){4}:([0-9A-Fa-f]{1,4}:){0,2}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){3}:([0-9A-Fa-f]{1,4}:){0,3}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){2}:([0-9A-Fa-f]{1,4}:){0,4}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){6}((\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b)\.){3}(\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b))|(([0-9A-Fa-f]{1,4}:){0,5}:((\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b)\.){3}(\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b))|(::([0-9A-Fa-f]{1,4}:){0,5}((\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b)\.){3}(\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b))|([0-9A-Fa-f]{1,4}::([0-9A-Fa-f]{1,4}:){0,5}[0-9A-Fa-f]{1,4})|(::([0-9A-Fa-f]{1,4}:){0,6}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){1,7}:))(|\/[0-9]{1,3})$/';
+	private static $pattern_IPv4 = '/^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}(|\/[0-9]{1,2})$/';
+	private $ip6 = array();
+	private $addr_is_ipv6 = false;
+	
+	public function __construct($initial_value) {
+		for($i = 0; $i < 8; $i++) {
+			$ip6[$i] = 0;
+		}
+		if($initial_value == null) {
+			//nothing
+		} elseif(preg_match(self::$pattern_IPv6, $initial_value)) {
+			$this->parseIPv6($initial_value);
+		} elseif(preg_match(self::$pattern_IPv4, $initial_value)) {
+			$this->parseIPv4($initial_value);
+		} else {
+			$this->parseNumeric($initial_value);
+		}
+	}
+	
+	public function parseNumeric($numeric) {
+		if(strlen($numeric) == 6) { //IPv4
+			$value = self::numToInt($numeric);
+			$this->ip6[6] = ($value & 0xffff0000) >> 16;
+			$this->ip6[7] = ($value & 0x0000ffff);
+			$this->addr_is_ipv6 = false;
+		} else { //IPv6
+			$j = 0;
+			for($i = 0; $i < strlen($numeric);) {
+				if($numeric[$i] == "_") {
+					$rightBlocks = (strlen($numeric) - $i - 1) / 3;
+					$skipBlocks = 8 - $j - $rightBlocks;
+					$j += $skipBlocks;
+				} else {
+					$value = self::numToInt($numeric[$i].$numeric[$i+1].$numeric[$i+2]);
+					$this->ip6[$j++] = dechex($value);
+					$i += 3;
+				}
+			}
+		}
+	}
+	
+	public function parseIPv6($ipv6) {
+		if(substr($ipv6,0,2) == "::") $ipv6 = substr($ipv6, 1);
+		if(substr($ipv6,-2) == "::") $ipv6 = substr($ipv6, 0, -1);
+		$ipv6blocks = explode(":", $ipv6);
+		$j = 0;
+		foreach($ipv6blocks as $i => $block) {
+			if($block == "") {
+				$skipBlocks = 8 - count($ipv6blocks);
+				$j += $skipBlocks + 1;
+			} else {
+				$this->ip6[$j++] = hexdec($block);
+			}
+		}
+	}
+	
+	public function parseIPv4($ipv4) {
+		$ipv4blocks = explode(".",$ipv4);
+		$this->ip6[6] = intval($ipv4blocks[0]) << 8;
+		$this->ip6[6] |= intval($ipv4blocks[1]);
+		$this->ip6[7] = intval($ipv4blocks[2]) << 8;
+		$this->ip6[7] |= intval($ipv4blocks[3]);
+	}
+	
+	public function isIPv6() {
+		return $this->addr_is_ipv6;
+	}
+	
+	public function getAddress() {
+		if($this->isIPv6()) {	
+			$max_start = 0;
+			$max_zeros = 0;
+			$curr_zeros = 0;
+			for ($i = 0; $i < 8; $i++) {
+				if ($this->ip6[$i] == 0)
+					$curr_zeros++;
+				else if ($curr_zeros > $max_zeros) {
+					$max_start = $i - $curr_zeros;
+					$max_zeros = $curr_zeros;
+					$curr_zeros = 0;
+				}
+			}
+			if ($curr_zeros > $max_zeros) {
+				$max_start = $i - $curr_zeros;
+				$max_zeros = $curr_zeros;
+			}
+			$ipv6 = "";
+			for($i = 0; $i < 8; $i++) {
+				if($max_zeros > 1 && $i == $max_start) {
+					$ipv6 .= "::";
+					$i += $max_zeros - 1;
+				} else {
+					if($ipv6 != "") $ipv6 .= ":";
+					$ipv6 .= dechex($this->ip6[$i]);
+				}
+			}
+			return $ipv6;
+		} else {
+			$ipv4 = array();
+			$ipv4[0] = ($this->ip6[6] >> 8) & 0xff;
+			$ipv4[1] = ($this->ip6[6]) & 0xff;
+			$ipv4[2] = ($this->ip6[7] >> 8) & 0xff;
+			$ipv4[3] = ($this->ip6[7]) & 0xff;
+			return implode(".", $ipv4);
+		}
+	}
+	
+	public function getNumeric() {
+		if($this->isIPv6()) {	
+			$max_start = 0;
+			$max_zeros = 0;
+			$curr_zeros = 0;
+			for ($i = 0; $i < 8; $i++) {
+				if ($this->ip6[$i] == 0)
+					$curr_zeros++;
+				else if ($curr_zeros > $max_zeros) {
+					$max_start = $i - $curr_zeros;
+					$max_zeros = $curr_zeros;
+					$curr_zeros = 0;
+				}
+			}
+			if ($curr_zeros > $max_zeros) {
+				$max_start = $i - $curr_zeros;
+				$max_zeros = $curr_zeros;
+			}
+			$ipv6 = "";
+			for($i = 0; $i < 8; $i++) {
+				if($max_zeros > 0 && $i == $max_start) {
+					$ipv6 .= "_";
+					$i += $max_zeros - 1;
+				} else {
+					$ipv6 .= Numerics::intToNum($this->ip6[$i],3);
+				}
+			}
+			return $ipv6;
+		} else {
+			$ipv4 = array();
+			$ipv4[0] = Numerics::intToNum($this->ip6[6], 3);
+			$ipv4[1] = Numerics::intToNum($this->ip6[7], 3);
+			return $ipv4[0].$ipv4[1];
+		}
+	}
+	
+}
+
+?>
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