diff options
Diffstat (limited to 'vendor/simplepie/simplepie/src/Net/IPv6.php')
| -rw-r--r-- | vendor/simplepie/simplepie/src/Net/IPv6.php | 219 |
1 files changed, 9 insertions, 210 deletions
diff --git a/vendor/simplepie/simplepie/src/Net/IPv6.php b/vendor/simplepie/simplepie/src/Net/IPv6.php index 8f192cbfb..6dee821e0 100644 --- a/vendor/simplepie/simplepie/src/Net/IPv6.php +++ b/vendor/simplepie/simplepie/src/Net/IPv6.php @@ -5,7 +5,10 @@ * A PHP-Based RSS and Atom Feed Framework. * Takes the hard work out of managing a complete RSS/Atom solution. * - * Copyright (c) 2004-2022, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors + * Please note: This file is automatically generated by a build script. The + * full original source is always available from http://simplepie.org/ + * + * Copyright (c) 2004-2016, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, are @@ -43,214 +46,10 @@ namespace SimplePie\Net; -/** - * 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 Sam Sneddon <geoffers@gmail.com> - */ -class 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) { - $ip = '0:0:0:0:0:0:0:0'; - } - // ::xxx - elseif ($c1 === -1) { - $fill = str_repeat('0:', 7 - $c2); - $ip = str_replace('::', $fill, $ip); - } - // xxx:: - elseif ($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); - } +class_exists('SimplePie_Net_IPv6'); - 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, $pos + 1); - return [$ipv6_part, $ipv4_part]; - } - - return [$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; - } - - return false; - } - - /** - * Checks if the given IP is a valid IPv6 address - * - * @codeCoverageIgnore - * @deprecated Use {@see 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); - } +if (\false) { + class IPv6 extends \SimplePie_Net_IPv6 + { + } } - -class_alias('SimplePie\Net\IPv6', 'SimplePie_Net_IPv6'); |