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📁 ..
📄 AuthenticationException.php(4.33 KB)
📄 Autoload.php(2.92 KB)
📄 Client.php(151.21 KB)
📄 CookieJar.php(11.98 KB)
📄 Exception.php(1.94 KB)
📄 GracefullTerminationException.php(2.86 KB)
📄 InvalidArgumentException.php(1.48 KB)
📁 Languages
📄 OutOfSequenceBeforeAuthenticationCallException.php(1.88 KB)
📄 OutOfSequenceBeforeClientException.php(1.93 KB)
📄 OutOfSequenceBeforeProxyException.php(1.89 KB)
📄 OutOfSequenceException.php(1.65 KB)
📁 PGTStorage
📁 ProxiedService
📄 ProxiedService.php(2.41 KB)
📁 ProxyChain
📄 ProxyChain.php(4.25 KB)
📄 ProxyTicketException.php(2.26 KB)
📁 Request
📁 ServiceBaseUrl
📁 Session
📄 TypeMismatchException.php(2.25 KB)

Editing: ProxyChain.php

<?php

/**
 * Licensed to Jasig under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for
 * additional information regarding copyright ownership.
 *
 * Jasig licenses this file to you under the Apache License,
 * Version 2.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at:
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * PHP Version 7
 *
 * @file     CAS/ProxyChain.php
 * @category Authentication
 * @package  PhpCAS
 * @author   Adam Franco <afranco@middlebury.edu>
 * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
 * @link     https://wiki.jasig.org/display/CASC/phpCAS
 */

/**
 * A normal proxy-chain definition that lists each level of the chain as either
 * a string or regular expression.
 *
 * @class    CAS_ProxyChain
 * @category Authentication
 * @package  PhpCAS
 * @author   Adam Franco <afranco@middlebury.edu>
 * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
 * @link     https://wiki.jasig.org/display/CASC/phpCAS
 */

class CAS_ProxyChain
implements CAS_ProxyChain_Interface
{

protected $chain = array();

/**
     * A chain is an array of strings or regexp strings that will be matched
     * against. Regexp will be matched with preg_match and strings will be
     * matched from the beginning. A string must fully match the beginning of
     * an proxy url. So you can define a full domain as acceptable or go further
     * down.
     * Proxies have to be defined in reverse from the service to the user. If a
     * user hits service A get proxied via B to service C the list of acceptable
     * proxies on C would be array(B,A);
     *
     * @param array $chain A chain of proxies
     */
    public function __construct(array $chain)
    {
        // Ensure that we have an indexed array
        $this->chain = array_values($chain);
    }

/**
     * Match a list of proxies.
     *
     * @param array $list The list of proxies in front of this service.
     *
     * @return bool
     */
    public function matches(array $list)
    {
        $list = array_values($list);  // Ensure that we have an indexed array
        if ($this->isSizeValid($list)) {
            $mismatch = false;
            foreach ($this->chain as $i => $search) {
                $proxy_url = $list[$i];
                if (preg_match('/^\/.*\/[ixASUXu]*$/s', $search)) {
                    if (preg_match($search, $proxy_url)) {
                        phpCAS::trace(
                            "Found regexp " .  $search . " matching " . $proxy_url
                        );
                    } else {
                        phpCAS::trace(
                            "No regexp match " .  $search . " != " . $proxy_url
                        );
                        $mismatch = true;
                        break;
                    }
                } else {
                    if (strncasecmp($search, $proxy_url, strlen($search)) == 0) {
                        phpCAS::trace(
                            "Found string " .  $search . " matching " . $proxy_url
                        );
                    } else {
                        phpCAS::trace(
                            "No match " .  $search . " != " . $proxy_url
                        );
                        $mismatch = true;
                        break;
                    }
                }
            }
            if (!$mismatch) {
                phpCAS::trace("Proxy chain matches");
                return true;
            }
        } else {
            phpCAS::trace("Proxy chain skipped: size mismatch");
        }
        return false;
    }

/**
     * Validate the size of the the list as compared to our chain.
     *
     * @param array $list List of proxies
     *
     * @return bool
     */
    protected function isSizeValid (array $list)
    {
        return (sizeof($this->chain) == sizeof($list));
    }
}

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Editing: ProxyChain.php

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