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https://github.com/kamilwylegala/cakephp2-php8.git
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104 lines
3.5 KiB
PHP
104 lines
3.5 KiB
PHP
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<?php
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/**
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* Digest authentication
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*
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* PHP 5
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*
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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* Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
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*
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* Licensed under The MIT License
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
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* @link http://cakephp.org CakePHP(tm) Project
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* @package cake
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* @subpackage cake.cake.libs.http
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* @since CakePHP(tm) v 2.0.0
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* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
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*/
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/**
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* Digest authentication
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*
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* @package cake
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* @subpackage cake.cake.libs.http
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*/
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class DigestMethod {
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/**
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* Authentication
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*
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* @param HttpSocket $http
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* @return void
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* @throws Exception
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* @link http://www.ietf.org/rfc/rfc2617.txt
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*/
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public static function authentication(&$http) {
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if (isset($http->request['auth']['user'], $http->request['auth']['pass'])) {
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if (!isset($http->config['request']['auth']['realm']) && !self::_getServerInformation($http)) {
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return;
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}
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$http->request['header']['Authorization'] = self::_generateHeader($http);
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}
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}
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/**
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* Retrive information about the authetication
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*
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* @param HttpSocket $http
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* @return boolean
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*/
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protected static function _getServerInformation(&$http) {
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$originalRequest = $http->request;
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$http->request['auth'] = array('method' => false);
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$http->request($http->request);
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$http->request = $originalRequest;
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if (empty($http->response['header']['Www-Authenticate'])) {
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return false;
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}
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preg_match_all('@(\w+)=(?:(?:")([^"]+)"|([^\s,$]+))@', $http->response['header']['Www-Authenticate'], $matches, PREG_SET_ORDER);
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foreach ($matches as $match) {
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$http->config['request']['auth'][$match[1]] = $match[2];
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}
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if (!empty($http->config['request']['auth']['qop']) && empty($http->config['request']['auth']['nc'])) {
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$http->config['request']['auth']['nc'] = 1;
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}
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return true;
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}
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/**
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* Generate the header Authorization
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*
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* @param HttpSocket $http
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* @return string
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*/
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protected static function _generateHeader(&$http) {
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$a1 = md5($http->request['auth']['user'] . ':' . $http->config['request']['auth']['realm'] . ':' . $http->request['auth']['pass']);
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$a2 = md5($http->request['method'] . ':' . $http->request['uri']['path']);
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if (empty($http->config['request']['auth']['qop'])) {
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$response = md5($a1 . ':' . $http->config['request']['auth']['nonce'] . ':' . $a2);
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} else {
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$http->config['request']['auth']['cnonce'] = uniqid();
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$nc = sprintf('%08x', $http->config['request']['auth']['nc']++);
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$response = md5($a1 . ':' . $http->config['request']['auth']['nonce'] . ':' . $nc . ':' . $http->config['request']['auth']['cnonce'] . ':auth:' . $a2);
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}
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$authHeader = 'Digest ';
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$authHeader .= 'username="' . str_replace(array('\\', '"'), array('\\\\', '\\"'), $http->request['auth']['user']) . '", ';
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$authHeader .= 'realm="' . $http->config['request']['auth']['realm'] . '", ';
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$authHeader .= 'nonce="' . $http->config['request']['auth']['nonce'] . '", ';
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$authHeader .= 'uri="' . $http->request['uri']['path'] . '", ';
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$authHeader .= 'response="' . $response . '"';
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if (!empty($http->config['request']['auth']['opaque'])) {
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$authHeader .= ', opaque="' . $http->config['request']['auth']['opaque'] . '"';
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}
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if (!empty($http->config['request']['auth']['qop'])) {
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$authHeader .= ', qop="auth", nc=' . $nc . ', cnonce="' . $http->config['request']['auth']['cnonce'] . '"';
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}
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return $authHeader;
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}
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}
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