WIBUHAX0R1337

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<?php
/**
 * Class to validate and to work with IPv6 addresses
 *
 * @package Requests\Utilities
 */

namespace WpOrg\Requests;

use WpOrg\Requests\Exception\InvalidArgument;
use WpOrg\Requests\Utility\InputValidator;

/**
 * Class to validate and to work with IPv6 addresses
 *
 * This was originally based on the PEAR class of the same name, but has been
 * entirely rewritten.
 *
 * @package Requests\Utilities
 */
final class Ipv6 {
	/**
	 * Uncompresses an IPv6 address
	 *
	 * RFC 4291 allows you to compress consecutive 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 https://opensource.org/licenses/bsd-license.php
	 *
	 * @param string|Stringable $ip An IPv6 address
	 * @return string The uncompressed IPv6 address
	 *
	 * @throws \WpOrg\Requests\Exception\InvalidArgument When the passed argument is not a string or a stringable object.
	 */
	public static function uncompress($ip) {
		if (InputValidator::is_string_or_stringable($ip) === false) {
			throw InvalidArgument::create(1, '$ip', 'string|Stringable', gettype($ip));
		}

$ip = (string) $ip;

if (substr_count($ip, '::') !== 1) {
			return $ip;
		}

list($ip1, $ip2) = explode('::', $ip);
		$c1              = ($ip1 === '') ? -1 : substr_count($ip1, ':');
		$c2              = ($ip2 === '') ? -1 : substr_count($ip2, ':');

if (strpos($ip2, '.') !== false) {
			$c2++;
		}

if ($c1 === -1 && $c2 === -1) {
			// ::
			$ip = '0:0:0:0:0:0:0:0';
		} elseif ($c1 === -1) {
			// ::xxx
			$fill = str_repeat('0:', 7 - $c2);
			$ip   = str_replace('::', $fill, $ip);
		} elseif ($c2 === -1) {
			// xxx::
			$fill = str_repeat(':0', 7 - $c1);
			$ip   = str_replace('::', $fill, $ip);
		} else {
			// xxx::xxx
			$fill = ':' . str_repeat('0:', 6 - $c2 - $c1);
			$ip   = str_replace('::', $fill, $ip);
		}

return $ip;
	}

/**
	 * Compresses an IPv6 address
	 *
	 * RFC 4291 allows you to compress consecutive 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 \WpOrg\Requests\Ipv6::uncompress()
	 *
	 * @param string $ip An IPv6 address
	 * @return string The compressed IPv6 address
	 */
	public static function compress($ip) {
		// Prepare the IP to be compressed.
		// Note: Input validation is handled in the `uncompress()` method, which is the first call made in this method.
		$ip       = self::uncompress($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 $ip An IPv6 address
	 * @return string[] [0] contains the IPv6 represented part, and [1] the IPv4 represented part
	 */
	private static function split_v6_v4($ip) {
		if (strpos($ip, '.') !== false) {
			$pos       = strrpos($ip, ':');
			$ipv6_part = substr($ip, 0, $pos);
			$ipv4_part = substr($ip, $pos + 1);
			return [$ipv6_part, $ipv4_part];
		} else {
			return [$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) {
		// Note: Input validation is handled in the `uncompress()` method, which is the first call made in this method.
		$ip                = self::uncompress($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;
		}
	}
}

Nama File / Folder	Size	Action
Auth	--	NONE
Cookie	--	NONE
Exception	--	NONE
Proxy	--	NONE
Response	--	NONE
Transport	--	NONE
Utility	--	NONE
.htaccess	0.231KB	Edit File Delete File Rename
Auth.php	0.84KB	Edit File Delete File Rename
Autoload.php	9.116KB	Edit File Delete File Rename
Capability.php	0.637KB	Edit File Delete File Rename
Cookie.php	15.028KB	Edit File Delete File Rename
Exception.php	1.088KB	Edit File Delete File Rename
HookManager.php	0.692KB	Edit File Delete File Rename
Hooks.php	2.961KB	Edit File Delete File Rename
IdnaEncoder.php	12.144KB	Edit File Delete File Rename
Ipv6.php	5.507KB	Edit File Delete File Rename
Iri.php	28.928KB	Edit File Delete File Rename
Port.php	1.47KB	Edit File Delete File Rename
Proxy.php	0.847KB	Edit File Delete File Rename
Requests.php	33.204KB	Edit File Delete File Rename
Response.php	4.181KB	Edit File Delete File Rename
Session.php	8.894KB	Edit File Delete File Rename
Ssl.php	5.298KB	Edit File Delete File Rename
Transport.php	1.508KB	Edit File Delete File Rename