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diff --git a/3rdparty/simplepie/library/SimplePie/Net/IPv6.php b/3rdparty/simplepie/library/SimplePie/Net/IPv6.php
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-<?php
-/**
- * SimplePie
- *
- * A PHP-Based RSS and Atom Feed Framework.
- * Takes the hard work out of managing a complete RSS/Atom solution.
- *
- * Copyright (c) 2004-2012, Ryan Parman, Geoffrey Sneddon, Ryan McCue, and contributors
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification, are
- * permitted provided that the following conditions are met:
- *
- * * Redistributions of source code must retain the above copyright notice, this list of
- * conditions and the following disclaimer.
- *
- * * Redistributions in binary form must reproduce the above copyright notice, this list
- * of conditions and the following disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * * Neither the name of the SimplePie Team nor the names of its contributors may be used
- * to endorse or promote products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
- * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
- * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- * @package SimplePie
- * @version 1.3.1
- * @copyright 2004-2012 Ryan Parman, Geoffrey Sneddon, Ryan McCue
- * @author Ryan Parman
- * @author Geoffrey Sneddon
- * @author Ryan McCue
- * @link http://simplepie.org/ SimplePie
- * @license http://www.opensource.org/licenses/bsd-license.php BSD License
- */
-
-
-/**
- * Class to validate and to work with IPv6 addresses.
- *
- * @package SimplePie
- * @subpackage HTTP
- * @copyright 2003-2005 The PHP Group
- * @license http://www.opensource.org/licenses/bsd-license.php
- * @link http://pear.php.net/package/Net_IPv6
- * @author Alexander Merz <alexander.merz@web.de>
- * @author elfrink at introweb dot nl
- * @author Josh Peck <jmp at joshpeck dot org>
- * @author Geoffrey Sneddon <geoffers@gmail.com>
- */
-class SimplePie_Net_IPv6
-{
- /**
- * Uncompresses an IPv6 address
- *
- * RFC 4291 allows you to compress concecutive zero pieces in an address to
- * '::'. This method expects a valid IPv6 address and expands the '::' to
- * the required number of zero pieces.
- *
- * Example: FF01::101 -> FF01:0:0:0:0:0:0:101
- * ::1 -> 0:0:0:0:0:0:0:1
- *
- * @author Alexander Merz <alexander.merz@web.de>
- * @author elfrink at introweb dot nl
- * @author Josh Peck <jmp at joshpeck dot org>
- * @copyright 2003-2005 The PHP Group
- * @license http://www.opensource.org/licenses/bsd-license.php
- * @param string $ip An IPv6 address
- * @return string The uncompressed IPv6 address
- */
- public static function uncompress($ip)
- {
- $c1 = -1;
- $c2 = -1;
- if (substr_count($ip, '::') === 1)
- {
- list($ip1, $ip2) = explode('::', $ip);
- if ($ip1 === '')
- {
- $c1 = -1;
- }
- else
- {
- $c1 = substr_count($ip1, ':');
- }
- if ($ip2 === '')
- {
- $c2 = -1;
- }
- else
- {
- $c2 = substr_count($ip2, ':');
- }
- if (strpos($ip2, '.') !== false)
- {
- $c2++;
- }
- // ::
- if ($c1 === -1 && $c2 === -1)
- {
- $ip = '0:0:0:0:0:0:0:0';
- }
- // ::xxx
- else if ($c1 === -1)
- {
- $fill = str_repeat('0:', 7 - $c2);
- $ip = str_replace('::', $fill, $ip);
- }
- // xxx::
- else if ($c2 === -1)
- {
- $fill = str_repeat(':0', 7 - $c1);
- $ip = str_replace('::', $fill, $ip);
- }
- // xxx::xxx
- else
- {
- $fill = ':' . str_repeat('0:', 6 - $c2 - $c1);
- $ip = str_replace('::', $fill, $ip);
- }
- }
- return $ip;
- }
-
- /**
- * Compresses an IPv6 address
- *
- * RFC 4291 allows you to compress concecutive zero pieces in an address to
- * '::'. This method expects a valid IPv6 address and compresses consecutive
- * zero pieces to '::'.
- *
- * Example: FF01:0:0:0:0:0:0:101 -> FF01::101
- * 0:0:0:0:0:0:0:1 -> ::1
- *
- * @see uncompress()
- * @param string $ip An IPv6 address
- * @return string The compressed IPv6 address
- */
- public static function compress($ip)
- {
- // Prepare the IP to be compressed
- $ip = self::uncompress($ip);
- $ip_parts = self::split_v6_v4($ip);
-
- // Replace all leading zeros
- $ip_parts[0] = preg_replace('/(^|:)0+([0-9])/', '\1\2', $ip_parts[0]);
-
- // Find bunches of zeros
- if (preg_match_all('/(?:^|:)(?:0(?::|$))+/', $ip_parts[0], $matches, PREG_OFFSET_CAPTURE))
- {
- $max = 0;
- $pos = null;
- foreach ($matches[0] as $match)
- {
- if (strlen($match[0]) > $max)
- {
- $max = strlen($match[0]);
- $pos = $match[1];
- }
- }
-
- $ip_parts[0] = substr_replace($ip_parts[0], '::', $pos, $max);
- }
-
- if ($ip_parts[1] !== '')
- {
- return implode(':', $ip_parts);
- }
- else
- {
- return $ip_parts[0];
- }
- }
-
- /**
- * Splits an IPv6 address into the IPv6 and IPv4 representation parts
- *
- * RFC 4291 allows you to represent the last two parts of an IPv6 address
- * using the standard IPv4 representation
- *
- * Example: 0:0:0:0:0:0:13.1.68.3
- * 0:0:0:0:0:FFFF:129.144.52.38
- *
- * @param string $ip An IPv6 address
- * @return array [0] contains the IPv6 represented part, and [1] the IPv4 represented part
- */
- private static function split_v6_v4($ip)
- {
- if (strpos($ip, '.') !== false)
- {
- $pos = strrpos($ip, ':');
- $ipv6_part = substr($ip, 0, $pos);
- $ipv4_part = substr($ip, $pos + 1);
- return array($ipv6_part, $ipv4_part);
- }
- else
- {
- return array($ip, '');
- }
- }
-
- /**
- * Checks an IPv6 address
- *
- * Checks if the given IP is a valid IPv6 address
- *
- * @param string $ip An IPv6 address
- * @return bool true if $ip is a valid IPv6 address
- */
- public static function check_ipv6($ip)
- {
- $ip = self::uncompress($ip);
- list($ipv6, $ipv4) = self::split_v6_v4($ip);
- $ipv6 = explode(':', $ipv6);
- $ipv4 = explode('.', $ipv4);
- if (count($ipv6) === 8 && count($ipv4) === 1 || count($ipv6) === 6 && count($ipv4) === 4)
- {
- foreach ($ipv6 as $ipv6_part)
- {
- // The section can't be empty
- if ($ipv6_part === '')
- return false;
-
- // Nor can it be over four characters
- if (strlen($ipv6_part) > 4)
- return false;
-
- // Remove leading zeros (this is safe because of the above)
- $ipv6_part = ltrim($ipv6_part, '0');
- if ($ipv6_part === '')
- $ipv6_part = '0';
-
- // Check the value is valid
- $value = hexdec($ipv6_part);
- if (dechex($value) !== strtolower($ipv6_part) || $value < 0 || $value > 0xFFFF)
- return false;
- }
- if (count($ipv4) === 4)
- {
- foreach ($ipv4 as $ipv4_part)
- {
- $value = (int) $ipv4_part;
- if ((string) $value !== $ipv4_part || $value < 0 || $value > 0xFF)
- return false;
- }
- }
- return true;
- }
- else
- {
- return false;
- }
- }
-
- /**
- * Checks if the given IP is a valid IPv6 address
- *
- * @codeCoverageIgnore
- * @deprecated Use {@see SimplePie_Net_IPv6::check_ipv6()} instead
- * @see check_ipv6
- * @param string $ip An IPv6 address
- * @return bool true if $ip is a valid IPv6 address
- */
- public static function checkIPv6($ip)
- {
- return self::check_ipv6($ip);
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-19 18:56:58 +0000