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Directory >> /home/s/g/s/sgspfrnwbu/www/wp-includes/Requests/

File / Folder	Size	Action
.	-
Auth	--	ren
Cookie	--	ren
Exception	--	ren
Proxy	--	ren
Response	--	ren
Transport	--	ren
Utility	--	ren
.htaccess	0.268KB	edt ren
Auth.php	0.791KB	edt ren
Cookie.php	12.553KB	edt ren
Exception.php	1.002KB	edt ren
Hooker.php	0.691KB	edt ren
Hooks.php	1.475KB	edt ren
IDNAEncoder.php	11.06KB	edt ren
IPv6.php	4.812KB	edt ren
IRI.php	28.35KB	edt ren
Proxy.php	0.794KB	edt ren
Response.php	2.446KB	edt ren
SSL.php	3.928KB	edt ren
Session.php	7.093KB	edt ren
Transport.php	1.191KB	edt ren

<?php
/**
 * SSL utilities for Requests
 *
 * @package Requests
 * @subpackage Utilities
 */

/**
 * SSL utilities for Requests
 *
 * Collection of utilities for working with and verifying SSL certificates.
 *
 * @package Requests
 * @subpackage Utilities
 */
class Requests_SSL {
	/**
	 * Verify the certificate against common name and subject alternative names
	 *
	 * Unfortunately, PHP doesn't check the certificate against the alternative
	 * names, leading things like 'https://www.github.com/' to be invalid.
	 * Instead
	 *
	 * @see https://tools.ietf.org/html/rfc2818#section-3.1 RFC2818, Section 3.1
	 *
	 * @throws Requests_Exception On not obtaining a match for the host (`fsockopen.ssl.no_match`)
	 * @param string $host Host name to verify against
	 * @param array $cert Certificate data from openssl_x509_parse()
	 * @return bool
	 */
	public static function verify_certificate($host, $cert) {
		// Calculate the valid wildcard match if the host is not an IP address
		$parts = explode('.', $host);
		if (ip2long($host) === false) {
			$parts[0] = '*';
		}
		$wildcard = implode('.', $parts);

$has_dns_alt = false;

// Check the subjectAltName
		if (!empty($cert['extensions']) && !empty($cert['extensions']['subjectAltName'])) {
			$altnames = explode(',', $cert['extensions']['subjectAltName']);
			foreach ($altnames as $altname) {
				$altname = trim($altname);
				if (strpos($altname, 'DNS:') !== 0) {
					continue;
				}

$has_dns_alt = true;

// Strip the 'DNS:' prefix and trim whitespace
				$altname = trim(substr($altname, 4));

// Check for a match
				if (self::match_domain($host, $altname) === true) {
					return true;
				}
			}
		}

// Fall back to checking the common name if we didn't get any dNSName
		// alt names, as per RFC2818
		if (!$has_dns_alt && !empty($cert['subject']['CN'])) {
			// Check for a match
			if (self::match_domain($host, $cert['subject']['CN']) === true) {
				return true;
			}
		}

return false;
	}

/**
	 * Verify that a reference name is valid
	 *
	 * Verifies a dNSName for HTTPS usage, (almost) as per Firefox's rules:
	 * - Wildcards can only occur in a name with more than 3 components
	 * - Wildcards can only occur as the last character in the first
	 *   component
	 * - Wildcards may be preceded by additional characters
	 *
	 * We modify these rules to be a bit stricter and only allow the wildcard
	 * character to be the full first component; that is, with the exclusion of
	 * the third rule.
	 *
	 * @param string $reference Reference dNSName
	 * @return boolean Is the name valid?
	 */
	public static function verify_reference_name($reference) {
		$parts = explode('.', $reference);

// Check the first part of the name
		$first = array_shift($parts);

if (strpos($first, '*') !== false) {
			// Check that the wildcard is the full part
			if ($first !== '*') {
				return false;
			}

// Check that we have at least 3 components (including first)
			if (count($parts) < 2) {
				return false;
			}
		}

// Check the remaining parts
		foreach ($parts as $part) {
			if (strpos($part, '*') !== false) {
				return false;
			}
		}

// Nothing found, verified!
		return true;
	}

/**
	 * Match a hostname against a dNSName reference
	 *
	 * @param string $host Requested host
	 * @param string $reference dNSName to match against
	 * @return boolean Does the domain match?
	 */
	public static function match_domain($host, $reference) {
		// Check if the reference is blacklisted first
		if (self::verify_reference_name($reference) !== true) {
			return false;
		}

// Check for a direct match
		if ($host === $reference) {
			return true;
		}

// Calculate the valid wildcard match if the host is not an IP address
		// Also validates that the host has 3 parts or more, as per Firefox's
		// ruleset.
		if (ip2long($host) === false) {
			$parts = explode('.', $host);
			$parts[0] = '*';
			$wildcard = implode('.', $parts);
			if ($wildcard === $reference) {
				return true;
			}
		}

return false;
	}
}