Updated phpCAS to 1.3.4

include/limesurvey/admin/classes/phpCAS/CAS/AuthenticationException.php

@@ -0,0 +1,108 @@
+<?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 5
+ *
+ * @file     CAS/AuthenticationException.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+
+/**
+ * This interface defines methods that allow proxy-authenticated service handlers
+ * to interact with phpCAS.
+ *
+ * Proxy service handlers must implement this interface as well as call
+ * phpCAS::initializeProxiedService($this) at some point in their implementation.
+ *
+ * While not required, proxy-authenticated service handlers are encouraged to
+ * implement the CAS_ProxiedService_Testable interface to facilitate unit testing.
+ *
+ * @class    CAS_AuthenticationException
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+
+class CAS_AuthenticationException
+extends RuntimeException
+implements CAS_Exception
+{
+
+    /**
+     * This method is used to print the HTML output when the user was not
+     * authenticated.
+     *
+     * @param CAS_Client $client       phpcas client
+     * @param string     $failure      the failure that occured
+     * @param string     $cas_url      the URL the CAS server was asked for
+     * @param bool       $no_response  the response from the CAS server (other
+     * parameters are ignored if TRUE)
+     * @param bool       $bad_response bad response from the CAS server ($err_code
+     * and $err_msg ignored if TRUE)
+     * @param string     $cas_response the response of the CAS server
+     * @param int        $err_code     the error code given by the CAS server
+     * @param string     $err_msg      the error message given by the CAS server
+     */
+    public function __construct($client,$failure,$cas_url,$no_response,
+        $bad_response='',$cas_response='',$err_code='',$err_msg=''
+    ) {
+        phpCAS::traceBegin();
+        $lang = $client->getLangObj();
+        $client->printHTMLHeader($lang->getAuthenticationFailed());
+        printf(
+            $lang->getYouWereNotAuthenticated(),
+            htmlentities($client->getURL()),
+            isset($_SERVER['SERVER_ADMIN']) ? $_SERVER['SERVER_ADMIN']:''
+        );
+        phpCAS::trace('CAS URL: '.$cas_url);
+        phpCAS::trace('Authentication failure: '.$failure);
+        if ( $no_response ) {
+            phpCAS::trace('Reason: no response from the CAS server');
+        } else {
+            if ( $bad_response ) {
+                phpCAS::trace('Reason: bad response from the CAS server');
+            } else {
+                switch ($client->getServerVersion()) {
+                case CAS_VERSION_1_0:
+                    phpCAS::trace('Reason: CAS error');
+                    break;
+                case CAS_VERSION_2_0:
+                case CAS_VERSION_3_0:
+                    if ( empty($err_code) ) {
+                        phpCAS::trace('Reason: no CAS error');
+                    } else {
+                        phpCAS::trace('Reason: ['.$err_code.'] CAS error: '.$err_msg);
+                    }
+                    break;
+                }
+            }
+            phpCAS::trace('CAS response: '.$cas_response);
+        }
+        $client->printHTMLFooter();
+        phpCAS::traceExit();
+    }
+
+}
+?>

include/limesurvey/admin/classes/phpCAS/CAS/Autoload.php

@@ -0,0 +1,105 @@
+<?php
+
+/**
+ * Autoloader Class
+ *
+ *  PHP Version 5
+ *
+ * @file      CAS/Autoload.php
+ * @category  Authentication
+ * @package   SimpleCAS
+ * @author    Brett Bieber <brett.bieber@gmail.com>
+ * @copyright 2008 Regents of the University of Nebraska
+ * @license   http://www1.unl.edu/wdn/wiki/Software_License BSD License
+ * @link      http://code.google.com/p/simplecas/
+ **/
+
+/**
+ * Autoload a class
+ *
+ * @param string $class Classname to load
+ *
+ * @return bool
+ */
+function CAS_autoload($class)
+{
+    // Static to hold the Include Path to CAS
+    static $include_path;
+    // Check only for CAS classes
+    if (substr($class, 0, 4) !== 'CAS_') {
+        return false;
+    }
+    // Setup the include path if it's not already set from a previous call
+    if (empty($include_path)) {
+        $include_path = array(dirname(dirname(__FILE__)), dirname(dirname(__FILE__)) . '/../test/' );
+    }
+
+    // Declare local variable to store the expected full path to the file
+
+    foreach ($include_path as $path) {
+        $file_path = $path . '/' . str_replace('_', '/', $class) . '.php';
+        $fp = @fopen($file_path, 'r', true);
+        if ($fp) {
+            fclose($fp);
+            include $file_path;
+            if (!class_exists($class, false) && !interface_exists($class, false)) {
+                die(
+                    new Exception(
+                        'Class ' . $class . ' was not present in ' .
+                        $file_path .
+                        ' [CAS_autoload]'
+                    )
+                );
+            }
+            return true;
+        }
+    }
+    $e = new Exception(
+        'Class ' . $class . ' could not be loaded from ' .
+        $file_path . ', file does not exist (Path="'
+        . implode(':', $include_path) .'") [CAS_autoload]'
+    );
+    $trace = $e->getTrace();
+    if (isset($trace[2]) && isset($trace[2]['function'])
+        && in_array($trace[2]['function'], array('class_exists', 'interface_exists'))
+    ) {
+        return false;
+    }
+    if (isset($trace[1]) && isset($trace[1]['function'])
+        && in_array($trace[1]['function'], array('class_exists', 'interface_exists'))
+    ) {
+        return false;
+    }
+    die ((string) $e);
+}
+
+// set up __autoload
+if (function_exists('spl_autoload_register')) {
+    if (!(spl_autoload_functions())
+        || !in_array('CAS_autoload', spl_autoload_functions())
+    ) {
+        spl_autoload_register('CAS_autoload');
+        if (function_exists('__autoload')
+            && !in_array('__autoload', spl_autoload_functions())
+        ) {
+            // __autoload() was being used, but now would be ignored, add
+            // it to the autoload stack
+            spl_autoload_register('__autoload');
+        }
+    }
+} elseif (!function_exists('__autoload')) {
+
+    /**
+     * Autoload a class
+     *
+     * @param string $class Class name
+     *
+     * @return bool
+     */
+    function __autoload($class)
+    {
+        return CAS_autoload($class);
+    }
+}
+
+?>

include/limesurvey/admin/classes/phpCAS/CAS/CookieJar.php

@@ -0,0 +1,385 @@
+<?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 5
+ *
+ * @file     CAS/CookieJar.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
+ */
+
+/**
+ * This class provides access to service cookies and handles parsing of response
+ * headers to pull out cookie values.
+ *
+ * @class    CAS_CookieJar
+ * @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_CookieJar
+{
+
+    private $_cookies;
+
+    /**
+     * Create a new cookie jar by passing it a reference to an array in which it
+     * should store cookies.
+     *
+     * @param array &$storageArray Array to store cookies
+     *
+     * @return void
+     */
+    public function __construct (array &$storageArray)
+    {
+        $this->_cookies =& $storageArray;
+    }
+
+    /**
+     * Store cookies for a web service request.
+     * Cookie storage is based on RFC 2965: http://www.ietf.org/rfc/rfc2965.txt
+     *
+     * @param string $request_url      The URL that generated the response headers.
+     * @param array  $response_headers An array of the HTTP response header strings.
+     *
+     * @return void
+     *
+     * @access private
+     */
+    public function storeCookies ($request_url, $response_headers)
+    {
+        $urlParts = parse_url($request_url);
+        $defaultDomain = $urlParts['host'];
+
+        $cookies = $this->parseCookieHeaders($response_headers, $defaultDomain);
+
+        // var_dump($cookies);
+        foreach ($cookies as $cookie) {
+            // Enforce the same-origin policy by verifying that the cookie
+            // would match the url that is setting it
+            if (!$this->cookieMatchesTarget($cookie, $urlParts)) {
+                continue;
+            }
+
+            // store the cookie
+            $this->storeCookie($cookie);
+
+            phpCAS::trace($cookie['name'].' -> '.$cookie['value']);
+        }
+    }
+
+    /**
+     * Retrieve cookies applicable for a web service request.
+     * Cookie applicability is based on RFC 2965: http://www.ietf.org/rfc/rfc2965.txt
+     *
+     * @param string $request_url The url that the cookies will be for.
+     *
+     * @return array An array containing cookies. E.g. array('name' => 'val');
+     *
+     * @access private
+     */
+    public function getCookies ($request_url)
+    {
+        if (!count($this->_cookies)) {
+            return array();
+        }
+
+        // If our request URL can't be parsed, no cookies apply.
+        $target = parse_url($request_url);
+        if ($target === false) {
+            return array();
+        }
+
+        $this->expireCookies();
+
+        $matching_cookies = array();
+        foreach ($this->_cookies as $key => $cookie) {
+            if ($this->cookieMatchesTarget($cookie, $target)) {
+                $matching_cookies[$cookie['name']] = $cookie['value'];
+            }
+        }
+        return $matching_cookies;
+    }
+
+
+    /**
+     * Parse Cookies without PECL
+     * From the comments in http://php.net/manual/en/function.http-parse-cookie.php
+     *
+     * @param array  $header        array of header lines.
+     * @param string $defaultDomain The domain to use if none is specified in
+     * the cookie.
+     *
+     * @return array of cookies
+     */
+    protected function parseCookieHeaders( $header, $defaultDomain )
+    {
+        phpCAS::traceBegin();
+        $cookies = array();
+        foreach ( $header as $line ) {
+            if ( preg_match('/^Set-Cookie2?: /i', $line)) {
+                $cookies[] = $this->parseCookieHeader($line, $defaultDomain);
+            }
+        }
+
+        phpCAS::traceEnd($cookies);
+        return $cookies;
+    }
+
+    /**
+     * Parse a single cookie header line.
+     *
+     * Based on RFC2965 http://www.ietf.org/rfc/rfc2965.txt
+     *
+     * @param string $line          The header line.
+     * @param string $defaultDomain The domain to use if none is specified in
+     * the cookie.
+     *
+     * @return array
+     */
+    protected function parseCookieHeader ($line, $defaultDomain)
+    {
+        if (!$defaultDomain) {
+            throw new CAS_InvalidArgumentException(
+                '$defaultDomain was not provided.'
+            );
+        }
+
+        // Set our default values
+        $cookie = array(
+            'domain' => $defaultDomain,
+            'path' => '/',
+            'secure' => false,
+        );
+
+        $line = preg_replace('/^Set-Cookie2?: /i', '', trim($line));
+
+        // trim any trailing semicolons.
+        $line = trim($line, ';');
+
+        phpCAS::trace("Cookie Line: $line");
+
+        // This implementation makes the assumption that semicolons will not
+        // be present in quoted attribute values. While attribute values that
+        // contain semicolons are allowed by RFC2965, they are hopefully rare
+        // enough to ignore for our purposes. Most browsers make the same
+        // assumption.
+        $attributeStrings = explode(';', $line);
+
+        foreach ( $attributeStrings as $attributeString ) {
+            // split on the first equals sign and use the rest as value
+            $attributeParts = explode('=', $attributeString, 2);
+
+            $attributeName = trim($attributeParts[0]);
+            $attributeNameLC = strtolower($attributeName);
+
+            if (isset($attributeParts[1])) {
+                $attributeValue = trim($attributeParts[1]);
+                // Values may be quoted strings.
+                if (strpos($attributeValue, '"') === 0) {
+                    $attributeValue = trim($attributeValue, '"');
+                    // unescape any escaped quotes:
+                    $attributeValue = str_replace('\"', '"', $attributeValue);
+                }
+            } else {
+                $attributeValue = null;
+            }
+
+            switch ($attributeNameLC) {
+            case 'expires':
+                $cookie['expires'] = strtotime($attributeValue);
+                break;
+            case 'max-age':
+                $cookie['max-age'] = (int)$attributeValue;
+                // Set an expiry time based on the max-age
+                if ($cookie['max-age']) {
+                    $cookie['expires'] = time() + $cookie['max-age'];
+                } else {
+                    // If max-age is zero, then the cookie should be removed
+                    // imediately so set an expiry before now.
+                    $cookie['expires'] = time() - 1;
+                }
+                break;
+            case 'secure':
+                $cookie['secure'] = true;
+                break;
+            case 'domain':
+            case 'path':
+            case 'port':
+            case 'version':
+            case 'comment':
+            case 'commenturl':
+            case 'discard':
+            case 'httponly':
+                $cookie[$attributeNameLC] = $attributeValue;
+                break;
+            default:
+                $cookie['name'] = $attributeName;
+                $cookie['value'] = $attributeValue;
+            }
+        }
+
+        return $cookie;
+    }
+
+    /**
+     * Add, update, or remove a cookie.
+     *
+     * @param array $cookie A cookie array as created by parseCookieHeaders()
+     *
+     * @return void
+     *
+     * @access protected
+     */
+    protected function storeCookie ($cookie)
+    {
+        // Discard any old versions of this cookie.
+        $this->discardCookie($cookie);
+        $this->_cookies[] = $cookie;
+
+    }
+
+    /**
+     * Discard an existing cookie
+     *
+     * @param array $cookie An cookie
+     *
+     * @return void
+     *
+     * @access protected
+     */
+    protected function discardCookie ($cookie)
+    {
+        if (!isset($cookie['domain'])
+            || !isset($cookie['path'])
+            || !isset($cookie['path'])
+        ) {
+            throw new CAS_InvalidArgumentException('Invalid Cookie array passed.');
+        }
+
+        foreach ($this->_cookies as $key => $old_cookie) {
+            if ( $cookie['domain'] == $old_cookie['domain']
+                && $cookie['path'] == $old_cookie['path']
+                && $cookie['name'] == $old_cookie['name']
+            ) {
+                unset($this->_cookies[$key]);
+            }
+        }
+    }
+
+    /**
+     * Go through our stored cookies and remove any that are expired.
+     *
+     * @return void
+     *
+     * @access protected
+     */
+    protected function expireCookies ()
+    {
+        foreach ($this->_cookies as $key => $cookie) {
+            if (isset($cookie['expires']) && $cookie['expires'] < time()) {
+                unset($this->_cookies[$key]);
+            }
+        }
+    }
+
+    /**
+     * Answer true if cookie is applicable to a target.
+     *
+     * @param array $cookie An array of cookie attributes.
+     * @param array $target An array of URL attributes as generated by parse_url().
+     *
+     * @return bool
+     *
+     * @access private
+     */
+    protected function cookieMatchesTarget ($cookie, $target)
+    {
+        if (!is_array($target)) {
+            throw new CAS_InvalidArgumentException(
+                '$target must be an array of URL attributes as generated by parse_url().'
+            );
+        }
+        if (!isset($target['host'])) {
+            throw new CAS_InvalidArgumentException(
+                '$target must be an array of URL attributes as generated by parse_url().'
+            );
+        }
+
+        // Verify that the scheme matches
+        if ($cookie['secure'] && $target['scheme'] != 'https') {
+            return false;
+        }
+
+        // Verify that the host matches
+        // Match domain and mulit-host cookies
+        if (strpos($cookie['domain'], '.') === 0) {
+            // .host.domain.edu cookies are valid for host.domain.edu
+            if (substr($cookie['domain'], 1) == $target['host']) {
+                // continue with other checks
+            } else {
+                // non-exact host-name matches.
+                // check that the target host a.b.c.edu is within .b.c.edu
+                $pos = strripos($target['host'], $cookie['domain']);
+                if (!$pos) {
+                    return false;
+                }
+                // verify that the cookie domain is the last part of the host.
+                if ($pos + strlen($cookie['domain']) != strlen($target['host'])) {
+                    return false;
+                }
+                // verify that the host name does not contain interior dots as per
+                // RFC 2965 section 3.3.2  Rejecting Cookies
+                // http://www.ietf.org/rfc/rfc2965.txt
+                $hostname = substr($target['host'], 0, $pos);
+                if (strpos($hostname, '.') !== false) {
+                    return false;
+                }
+            }
+        } else {
+            // If the cookie host doesn't begin with '.',
+            // the host must case-insensitive match exactly
+            if (strcasecmp($target['host'], $cookie['domain']) !== 0) {
+                return false;
+            }
+        }
+
+        // Verify that the port matches
+        if (isset($cookie['ports'])
+            && !in_array($target['port'], $cookie['ports'])
+        ) {
+            return false;
+        }
+
+        // Verify that the path matches
+        if (strpos($target['path'], $cookie['path']) !== 0) {
+            return false;
+        }
+
+        return true;
+    }
+
+}
+
+?>

include/limesurvey/admin/classes/phpCAS/CAS/Exception.php

@@ -0,0 +1,59 @@
+<?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 5
+ *
+ * @file     CAS/Exception.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 root exception interface for all exceptions in phpCAS.
+ *
+ * All exceptions thrown in phpCAS should implement this interface to allow them
+ * to be caught as a category by clients. Each phpCAS exception should extend
+ * an appropriate SPL exception class that best fits its type.
+ *
+ * For example, an InvalidArgumentException in phpCAS should be defined as
+ *
+ *		class CAS_InvalidArgumentException
+ *			extends InvalidArgumentException
+ *			implements CAS_Exception
+ *		{ }
+ *
+ * This definition allows the CAS_InvalidArgumentException to be caught as either
+ * an InvalidArgumentException or as a CAS_Exception.
+ *
+ * @class    CAS_Exception
+ * @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
+ *
+ */
+interface CAS_Exception
+{
+
+}
+?>

include/limesurvey/admin/classes/phpCAS/CAS/GracefullTerminationException.php

@@ -0,0 +1,86 @@
+<?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 5
+ *
+ * @file     CAS/GracefullTerminationException.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @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
+ */
+
+/**
+ * An exception for terminatinating execution or to throw for unit testing
+ *
+ * @class     CAS_GracefullTerminationException.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @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_GracefullTerminationException
+extends RuntimeException
+implements CAS_Exception
+{
+
+    /**
+     * Test if exceptions should be thrown or if we should just exit.
+     * In production usage we want to just exit cleanly when prompting the user
+     * for a redirect without filling the error logs with uncaught exceptions.
+     * In unit testing scenarios we cannot exit or we won't be able to continue
+     * with our tests.
+     *
+     * @param string $message Message Text
+     * @param string $code    Error code
+     *
+     * @return void
+     */
+    public function __construct ($message = 'Terminate Gracefully', $code = 0)
+    {
+        // Exit cleanly to avoid filling up the logs with uncaught exceptions.
+        if (self::$_exitWhenThrown) {
+            exit;
+        } else {
+            // Throw exceptions to allow unit testing to continue;
+            parent::__construct($message, $code);
+        }
+    }
+
+    private static $_exitWhenThrown = true;
+    /**
+    * Force phpcas to thow Exceptions instead of calling exit()
+    * Needed for unit testing. Generally shouldn't be used in production due to
+    * an increase in Apache error logging if CAS_GracefulTerminiationExceptions
+    * are not caught and handled.
+    *
+    * @return void
+    */
+    public static function throwInsteadOfExiting()
+    {
+        self::$_exitWhenThrown = false;
+    }
+
+}
+?>

include/limesurvey/admin/classes/phpCAS/CAS/InvalidArgumentException.php

@@ -0,0 +1,46 @@
+<?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 5
+ *
+ * @file     CAS/InvalidArgumentException.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
+ */
+
+/**
+ * Exception that denotes invalid arguments were passed.
+ *
+ * @class    CAS_InvalidArgumentException
+ * @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_InvalidArgumentException
+extends InvalidArgumentException
+implements CAS_Exception
+{
+
+}
+?>

include/limesurvey/admin/classes/phpCAS/CAS/Languages/Catalan.php

@@ -0,0 +1,114 @@
+<?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 5
+ *
+ * @file     CAS/Language/Catalan.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Iván-Benjamín García Torà <ivaniclixx@gmail.com>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+
+/**
+ * Catalan language class
+ *
+ * @class    CAS_Languages_Catalan
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Iván-Benjamín García Torà <ivaniclixx@gmail.com>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ *
+ * @sa @link internalLang Internationalization @endlink
+ * @ingroup internalLang
+ */
+class CAS_Languages_Catalan implements CAS_Languages_LanguageInterface
+{
+    /**
+    * Get the using server string
+    *
+    * @return string using server
+    */
+    public function getUsingServer()
+    {
+        return 'usant servidor';
+    }
+
+    /**
+    * Get authentication wanted string
+    *
+    * @return string authentication wanted
+    */
+    public function getAuthenticationWanted()
+    {
+        return 'Autentificació CAS necessària!';
+    }
+
+    /**
+    * Get logout string
+    *
+    * @return string logout
+    */
+    public function getLogout()
+    {
+        return 'Sortida de CAS necessària!';
+    }
+
+    /**
+    * Get the should have been redirected string
+    *
+    * @return string should habe been redirected
+    */
+    public function getShouldHaveBeenRedirected()
+    {
+        return 'Ja hauria d\ haver estat redireccionat al servidor CAS. Feu click <a href="%s">aquí</a> per a continuar.';
+    }
+
+    /**
+    * Get authentication failed string
+    *
+    * @return string authentication failed
+    */
+    public function getAuthenticationFailed()
+    {
+        return 'Autentificació CAS fallida!';
+    }
+
+    /**
+    * Get the your were not authenticated string
+    *
+    * @return string not authenticated
+    */
+    public function getYouWereNotAuthenticated()
+    {
+        return '<p>No estàs autentificat.</p><p>Pots tornar a intentar-ho fent click <a href="%s">aquí</a>.</p><p>Si el problema persisteix hauría de contactar amb l\'<a href="mailto:%s">administrador d\'aquest llocc</a>.</p>';
+    }
+
+    /**
+    * Get the service unavailable string
+    *
+    * @return string service unavailable
+    */
+    public function getServiceUnavailable()
+    {
+        return 'El servei `<b>%s</b>\' no està disponible (<b>%s</b>).';
+    }
+}

include/limesurvey/admin/classes/phpCAS/CAS/Languages/English.php

@@ -0,0 +1,114 @@
+<?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 5
+ *
+ * @file     CAS/Language/English.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Pascal Aubry <pascal.aubry@univ-rennes1.fr>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+
+/**
+ * English language class
+ *
+ * @class    CAS_Languages_English
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Pascal Aubry <pascal.aubry@univ-rennes1.fr>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ *
+ * @sa @link internalLang Internationalization @endlink
+ * @ingroup internalLang
+ */
+class CAS_Languages_English implements CAS_Languages_LanguageInterface
+{
+    /**
+     * Get the using server string
+     *
+     * @return string using server
+     */
+    public function getUsingServer()
+    {
+        return 'using server';
+    }
+
+    /**
+     * Get authentication wanted string
+     *
+     * @return string authentication wanted
+     */
+    public function getAuthenticationWanted()
+    {
+        return 'CAS Authentication wanted!';
+    }
+
+    /**
+     * Get logout string
+     *
+     * @return string logout
+     */
+    public function getLogout()
+    {
+        return 'CAS logout wanted!';
+    }
+
+    /**
+     * Get the should have been redirected string
+     *
+     * @return string should habe been redirected
+     */
+    public function getShouldHaveBeenRedirected()
+    {
+        return 'You should already have been redirected to the CAS server. Click <a href="%s">here</a> to continue.';
+    }
+
+    /**
+    * Get authentication failed string
+    *
+    * @return string authentication failed
+    */
+    public function getAuthenticationFailed()
+    {
+        return 'CAS Authentication failed!';
+    }
+
+    /**
+    * Get the your were not authenticated string
+    *
+    * @return string not authenticated
+    */
+    public function getYouWereNotAuthenticated()
+    {
+        return '<p>You were not authenticated.</p><p>You may submit your request again by clicking <a href="%s">here</a>.</p><p>If the problem persists, you may contact <a href="mailto:%s">the administrator of this site</a>.</p>';
+    }
+
+    /**
+    * Get the service unavailable string
+    *
+    * @return string service unavailable
+    */
+    public function getServiceUnavailable()
+    {
+        return 'The service `<b>%s</b>\' is not available (<b>%s</b>).';
+    }
+}

include/limesurvey/admin/classes/phpCAS/CAS/Languages/French.php

@@ -0,0 +1,116 @@
+<?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 5
+ *
+ * @file     CAS/Language/French.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Pascal Aubry <pascal.aubry@univ-rennes1.fr>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+
+/**
+ * French language class
+ *
+ * @class    CAS_Languages_French
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Pascal Aubry <pascal.aubry@univ-rennes1.fr>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ *
+ * @sa @link internalLang Internationalization @endlink
+ * @ingroup internalLang
+ */
+class CAS_Languages_French implements CAS_Languages_LanguageInterface
+{
+    /**
+     * Get the using server string
+     *
+     * @return string using server
+     */
+    public function getUsingServer()
+    {
+        return 'utilisant le serveur';
+    }
+
+    /**
+     * Get authentication wanted string
+     *
+     * @return string authentication wanted
+     */
+    public function getAuthenticationWanted()
+    {
+        return 'Authentication CAS nécessaire&nbsp;!';
+    }
+
+    /**
+     * Get logout string
+     *
+     * @return string logout
+     */
+    public function getLogout()
+    {
+        return 'Déconnexion demandée&nbsp;!';
+    }
+
+    /**
+     * Get the should have been redirected string
+     *
+     * @return string should habe been redirected
+     */
+    public function getShouldHaveBeenRedirected()
+    {
+        return 'Vous auriez du etre redirigé(e) vers le serveur CAS. Cliquez <a href="%s">ici</a> pour continuer.';
+    }
+
+    /**
+     * Get authentication failed string
+     *
+     * @return string authentication failed
+     */
+    public function getAuthenticationFailed()
+    {
+        return 'Authentification CAS infructueuse&nbsp;!';
+    }
+
+    /**
+     * Get the your were not authenticated string
+     *
+     * @return string not authenticated
+     */
+    public function getYouWereNotAuthenticated()
+    {
+        return '<p>Vous n\'avez pas été authentifié(e).</p><p>Vous pouvez soumettre votre requete à nouveau en cliquant <a href="%s">ici</a>.</p><p>Si le problème persiste, vous pouvez contacter <a href="mailto:%s">l\'administrateur de ce site</a>.</p>';
+    }
+
+    /**
+     * Get the service unavailable string
+     *
+     * @return string service unavailable
+     */
+    public function getServiceUnavailable()
+    {
+        return 'Le service `<b>%s</b>\' est indisponible (<b>%s</b>)';
+    }
+}
+
+?>

include/limesurvey/admin/classes/phpCAS/CAS/Languages/German.php

@@ -0,0 +1,116 @@
+<?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 5
+ *
+ * @file     CAS/Language/German.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Henrik Genssen <hg@mediafactory.de>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+
+/**
+ * German language class
+ *
+ * @class    CAS_Languages_German
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Henrik Genssen <hg@mediafactory.de>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ *
+ * @sa @link internalLang Internationalization @endlink
+ * @ingroup internalLang
+ */
+class CAS_Languages_German implements CAS_Languages_LanguageInterface
+{
+    /**
+     * Get the using server string
+     *
+     * @return string using server
+     */
+    public function getUsingServer()
+    {
+        return 'via Server';
+    }
+
+    /**
+     * Get authentication wanted string
+     *
+     * @return string authentication wanted
+     */
+    public function getAuthenticationWanted()
+    {
+        return 'CAS Authentifizierung erforderlich!';
+    }
+
+    /**
+     * Get logout string
+     *
+     * @return string logout
+     */
+    public function getLogout()
+    {
+        return 'CAS Abmeldung!';
+    }
+
+    /**
+     * Get the should have been redirected string
+     *
+     * @return string should habe been redirected
+     */
+    public function getShouldHaveBeenRedirected()
+    {
+        return 'eigentlich h&auml;ten Sie zum CAS Server weitergeleitet werden sollen. Dr&uuml;cken Sie <a href="%s">hier</a> um fortzufahren.';
+    }
+
+    /**
+     * Get authentication failed string
+     *
+     * @return string authentication failed
+     */
+    public function getAuthenticationFailed()
+    {
+        return 'CAS Anmeldung fehlgeschlagen!';
+    }
+
+    /**
+     * Get the your were not authenticated string
+     *
+     * @return string not authenticated
+     */
+    public function getYouWereNotAuthenticated()
+    {
+        return '<p>Sie wurden nicht angemeldet.</p><p>Um es erneut zu versuchen klicken Sie <a href="%s">hier</a>.</p><p>Wenn das Problem bestehen bleibt, kontaktieren Sie den <a href="mailto:%s">Administrator</a> dieser Seite.</p>';
+    }
+
+    /**
+     * Get the service unavailable string
+     *
+     * @return string service unavailable
+     */
+    public function getServiceUnavailable()
+    {
+        return 'Der Dienst `<b>%s</b>\' ist nicht verf&uuml;gbar (<b>%s</b>).';
+    }
+}
+
+?>

include/limesurvey/admin/classes/phpCAS/CAS/Languages/Greek.php

@@ -0,0 +1,115 @@
+<?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 5
+ *
+ * @file     CAS/Language/Greek.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Vangelis Haniotakis <haniotak@ucnet.uoc.gr>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+
+/**
+ * Greek language class
+ *
+ * @class    CAS_Languages_Greek
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Vangelis Haniotakis <haniotak@ucnet.uoc.gr>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ *
+ * @sa @link internalLang Internationalization @endlink
+ * @ingroup internalLang
+ */
+class CAS_Languages_Greek implements CAS_Languages_LanguageInterface
+{
+    /**
+     * Get the using server string
+     *
+     * @return string using server
+     */
+    public function getUsingServer()
+    {
+        return '÷ñçóéìïðïéåßôáé ï åîõðçñåôçôÞò';
+    }
+
+    /**
+     * Get authentication wanted string
+     *
+     * @return string authentication wanted
+     */
+    public function getAuthenticationWanted()
+    {
+        return 'Áðáéôåßôáé ç ôáõôïðïßçóç CAS!';
+    }
+
+    /**
+     * Get logout string
+     *
+     * @return string logout
+     */
+    public function getLogout()
+    {
+        return 'Áðáéôåßôáé ç áðïóýíäåóç áðü CAS!';
+    }
+
+    /**
+     * Get the should have been redirected string
+     *
+     * @return string should habe been redirected
+     */
+    public function getShouldHaveBeenRedirected()
+    {
+        return 'Èá Ýðñåðå íá åß÷áôå áíáêáôåõèõíèåß óôïí åîõðçñåôçôÞ CAS. ÊÜíôå êëßê <a href="%s">åäþ</a> ãéá íá óõíå÷ßóåôå.';
+    }
+
+    /**
+     * Get authentication failed string
+     *
+     * @return string authentication failed
+     */
+    public function getAuthenticationFailed()
+    {
+        return 'Ç ôáõôïðïßçóç CAS áðÝôõ÷å!';
+    }
+
+    /**
+     * Get the your were not authenticated string
+     *
+     * @return string not authenticated
+     */
+    public function getYouWereNotAuthenticated()
+    {
+        return '<p>Äåí ôáõôïðïéçèÞêáôå.</p><p>Ìðïñåßôå íá îáíáðñïóðáèÞóåôå, êÜíïíôáò êëßê <a href="%s">åäþ</a>.</p><p>Åáí ôï ðñüâëçìá åðéìåßíåé, åëÜôå óå åðáöÞ ìå ôïí <a href="mailto:%s">äéá÷åéñéóôÞ</a>.</p>';
+    }
+
+    /**
+     * Get the service unavailable string
+     *
+     * @return string service unavailable
+     */
+    public function getServiceUnavailable()
+    {
+        return 'Ç õðçñåóßá `<b>%s</b>\' äåí åßíáé äéáèÝóéìç (<b>%s</b>).';
+    }
+}
+?>

include/limesurvey/admin/classes/phpCAS/CAS/Languages/Japanese.php

@@ -0,0 +1,113 @@
+<?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 5
+ *
+ * @file     CAS/Language/Japanese.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   fnorif <fnorif@yahoo.co.jp>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+
+/**
+ * Japanese language class. Now Encoding is EUC-JP and LF
+ *
+ * @class    CAS_Languages_Japanese
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   fnorif <fnorif@yahoo.co.jp>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ *
+ **/
+class CAS_Languages_Japanese implements CAS_Languages_LanguageInterface
+{
+    /**
+     * Get the using server string
+     *
+     * @return string using server
+     */
+    public function getUsingServer()
+    {
+        return 'using server';
+    }
+
+    /**
+     * Get authentication wanted string
+     *
+     * @return string authentication wanted
+     */
+    public function getAuthenticationWanted()
+    {
+        return 'CAS<41>ˤ<EFBFBD><CBA4>ǧ<EFBFBD>ڤ<EFBFBD>Ԥ<EFBFBD><D4A4>ޤ<EFBFBD>';
+    }
+
+    /**
+     * Get logout string
+     *
+     * @return string logout
+     */
+    public function getLogout()
+    {
+        return 'CAS<41><53><EFBFBD><EFBFBD>?<3F><><EFBFBD><EFBFBD><EFBFBD>Ȥ<EFBFBD><C8A4>ޤ<EFBFBD>!';
+    }
+
+    /**
+     * Get the should have been redirected string
+     *
+     * @return string should habe been redirected
+     */
+    public function getShouldHaveBeenRedirected()
+    {
+        return 'CAS<41><53><EFBFBD><EFBFBD><EFBFBD>Ф˹Ԥ<CBB9>ɬ<EFBFBD>פ<EFBFBD><D7A4><EFBFBD><EFBFBD><EFBFBD>ޤ<EFBFBD><DEA4><EFBFBD><EFBFBD><EFBFBD>ưŪ<C6B0><C5AA>ž<EFBFBD><C5BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʤ<EFBFBD><CAA4><EFBFBD><EFBFBD><EFBFBD> <a href="%s"><3E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD></a> <20>򥯥<EFBFBD>å<EFBFBD><C3A5><EFBFBD><EFBFBD><EFBFBD>³<EFBFBD>Ԥ<EFBFBD><D4A4>ޤ<EFBFBD><DEA4>';
+    }
+
+    /**
+     * Get authentication failed string
+     *
+     * @return string authentication failed
+     */
+    public function getAuthenticationFailed()
+    {
+        return 'CAS<41>ˤ<EFBFBD><CBA4>ǧ<EFBFBD>ڤ˼<DAA4><CBBC>Ԥ<EFBFBD><D4A4>ޤ<EFBFBD><DEA4><EFBFBD>';
+    }
+
+    /**
+     * Get the your were not authenticated string
+     *
+     * @return string not authenticated
+     */
+    public function getYouWereNotAuthenticated()
+    {
+        return '<p>ǧ<>ڤǤ<DAA4><C7A4>ޤ<EFBFBD><DEA4><EFBFBD>Ǥ<EFBFBD><C7A4><EFBFBD>.</p><p><3E>⤦<EFBFBD><E2A4A6><EFBFBD>٥ꥯ<D9A5><EAA5AF><EFBFBD><EFBFBD><EFBFBD>Ȥ<EFBFBD><C8A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><a href="%s"><3E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD></a><3E>򥯥<EFBFBD>å<EFBFBD>.</p><p><3E><><EFBFBD>꤬<EFBFBD><EAA4AC>褷<EFBFBD>ʤ<EFBFBD><CAA4><EFBFBD><EFBFBD><EFBFBD> <a href="mailto:%s"><3E><><EFBFBD>Υ<EFBFBD><CEA5><EFBFBD><EFBFBD>Ȥδ<C8A4><CEB4><EFBFBD><EFBFBD></a><3E><><EFBFBD>䤤<EFBFBD><E4A4A4>碌<EFBFBD>Ƥ<EFBFBD><C6A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.</p>';
+    }
+
+    /**
+     * Get the service unavailable string
+     *
+     * @return string service unavailable
+     */
+    public function getServiceUnavailable()
+    {
+        return '<27><><EFBFBD><EFBFBD><EFBFBD>ӥ<EFBFBD> `<b>%s</b>\' <20><><EFBFBD><EFBFBD><EFBFBD>ѤǤ<D1A4><C7A4>ޤ<EFBFBD><DEA4><EFBFBD> (<b>%s</b>).';
+    }
+}
+?>

include/limesurvey/admin/classes/phpCAS/CAS/Languages/LanguageInterface.php

@@ -0,0 +1,96 @@
+<?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 5
+ *
+ * @file     CAS/Language/LanguageInterface.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+
+/**
+ * Language Interface class for all internationalization files
+ *
+ * @class    CAS_Languages_LanguageInterface
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ *
+ * @sa @link internalLang Internationalization @endlink
+ * @ingroup internalLang
+ */
+
+interface CAS_Languages_LanguageInterface
+{
+    /**
+     * Get the using server string
+     *
+     * @return string using server
+     */
+    public function getUsingServer();
+
+    /**
+     * Get authentication wanted string
+     *
+     * @return string authentication wanted
+     */
+    public function getAuthenticationWanted();
+
+    /**
+     * Get logout string
+     *
+     * @return string logout
+     */
+    public function getLogout();
+
+    /**
+     * Get the should have been redirected string
+     *
+     * @return string should habe been redirected
+     */
+    public function getShouldHaveBeenRedirected();
+
+    /**
+     * Get authentication failed string
+     *
+     * @return string authentication failed
+     */
+    public function getAuthenticationFailed();
+
+    /**
+     * Get the your were not authenticated string
+     *
+     * @return string not authenticated
+     */
+    public function getYouWereNotAuthenticated();
+
+    /**
+     * Get the service unavailable string
+     *
+     * @return string service unavailable
+     */
+    public function getServiceUnavailable();
+
+}
+?>

include/limesurvey/admin/classes/phpCAS/CAS/Languages/Spanish.php

@@ -0,0 +1,117 @@
+<?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 5
+ *
+ * @file     CAS/Language/Spanish.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Iván-Benjamín García Torà <ivaniclixx@gmail.com>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+
+/**
+ * Spanish language class
+ *
+ * @class    CAS_Languages_Spanish
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Iván-Benjamín García Torà <ivaniclixx@gmail.com>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ *
+
+ * @sa @link internalLang Internationalization @endlink
+ * @ingroup internalLang
+ */
+class CAS_Languages_Spanish implements CAS_Languages_LanguageInterface
+{
+
+    /**
+     * Get the using server string
+     *
+     * @return string using server
+     */
+    public function getUsingServer()
+    {
+        return 'usando servidor';
+    }
+
+    /**
+     * Get authentication wanted string
+     *
+     * @return string authentication wanted
+     */
+    public function getAuthenticationWanted()
+    {
+        return '¡Autentificación CAS necesaria!';
+    }
+
+    /**
+     * Get logout string
+     *
+     * @return string logout
+     */
+    public function getLogout()
+    {
+        return '¡Salida CAS necesaria!';
+    }
+
+    /**
+     * Get the should have been redirected string
+     *
+     * @return string should habe been redirected
+     */
+    public function getShouldHaveBeenRedirected()
+    {
+        return 'Ya debería haber sido redireccionado al servidor CAS. Haga click <a href="%s">aquí</a> para continuar.';
+    }
+
+    /**
+     * Get authentication failed string
+     *
+     * @return string authentication failed
+     */
+    public function getAuthenticationFailed()
+    {
+        return '¡Autentificación CAS fallida!';
+    }
+
+    /**
+     * Get the your were not authenticated string
+     *
+     * @return string not authenticated
+     */
+    public function getYouWereNotAuthenticated()
+    {
+        return '<p>No estás autentificado.</p><p>Puedes volver a intentarlo haciendo click <a href="%s">aquí</a>.</p><p>Si el problema persiste debería contactar con el <a href="mailto:%s">administrador de este sitio</a>.</p>';
+    }
+
+    /**
+     * Get the service unavailable string
+     *
+     * @return string service unavailable
+     */
+    public function getServiceUnavailable()
+    {
+        return 'El servicio `<b>%s</b>\' no está disponible (<b>%s</b>).';
+    }
+}
+?>

include/limesurvey/admin/classes/phpCAS/CAS/OutOfSequenceBeforeAuthenticationCallException.php

@@ -0,0 +1,56 @@
+<?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 5
+ *
+ * @file     CAS/OutOfSequenceBeforeAuthenticationCallException.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+
+/**
+ * This class defines Exceptions that should be thrown when the sequence of
+ * operations is invalid. In this case it should be thrown when an
+ * authentication call has not yet happened.
+ *
+ * @class    CAS_OutOfSequenceBeforeAuthenticationCallException
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+class CAS_OutOfSequenceBeforeAuthenticationCallException
+extends CAS_OutOfSequenceException
+implements CAS_Exception
+{
+    /**
+     * Return standard error meessage
+     *
+     * @return void
+     */
+    public function __construct ()
+    {
+        parent::__construct('An authentication call hasn\'t happened yet.');
+    }
+}

include/limesurvey/admin/classes/phpCAS/CAS/OutOfSequenceBeforeClientException.php

@@ -0,0 +1,58 @@
+<?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 5
+ *
+ * @file     CAS/OutOfSequenceBeforeClientException.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+
+/**
+ * This class defines Exceptions that should be thrown when the sequence of
+ * operations is invalid. In this case it should be thrown when the client() or
+ *  proxy() call has not yet happened and no client or proxy object exists.
+ *
+ * @class    CAS_OutOfSequenceBeforeClientException
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+class CAS_OutOfSequenceBeforeClientException
+extends CAS_OutOfSequenceException
+implements CAS_Exception
+{
+    /**
+     * Return standard error message
+     *
+     * @return void
+     */
+    public function __construct ()
+    {
+        parent::__construct(
+            'this method cannot be called before phpCAS::client() or phpCAS::proxy()'
+        );
+    }
+}

include/limesurvey/admin/classes/phpCAS/CAS/OutOfSequenceBeforeProxyException.php

@@ -0,0 +1,59 @@
+<?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 5
+ *
+ * @file     CAS/OutOfSequenceBeforeProxyException.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+
+/**
+ * This class defines Exceptions that should be thrown when the sequence of
+ * operations is invalid. In this case it should be thrown when the proxy() call
+ * has not yet happened and no proxy object exists.
+ *
+ * @class    CAS_OutOfSequenceBeforeProxyException
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+class CAS_OutOfSequenceBeforeProxyException
+extends CAS_OutOfSequenceException
+implements CAS_Exception
+{
+
+    /**
+     * Return standard error message
+     *
+     * @return void
+     */
+    public function __construct ()
+    {
+        parent::__construct(
+            'this method cannot be called before phpCAS::proxy()'
+        );
+    }
+}

include/limesurvey/admin/classes/phpCAS/CAS/OutOfSequenceException.php

@@ -0,0 +1,49 @@
+<?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 5
+ *
+ * @file     CAS/OutOfSequenceException.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
+ */
+
+/**
+ * This class defines Exceptions that should be thrown when the sequence of
+ * operations is invalid. Examples are:
+ *		- Requesting the response before executing a request.
+ *		- Changing the URL of a request after executing the request.
+ *
+ * @class    CAS_OutOfSequenceException
+ * @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_OutOfSequenceException
+extends BadMethodCallException
+implements CAS_Exception
+{
+
+}

include/limesurvey/admin/classes/phpCAS/CAS/PGTStorage/AbstractStorage.php

@@ -1,21 +1,49 @@
 <?php
 
 /**
- * @file CAS/PGTStorage/pgt-main.php
- * Basic class for PGT storage
+ * 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 5
+ *
+ * @file     CAS/PGTStorage/AbstractStorage.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Pascal Aubry <pascal.aubry@univ-rennes1.fr>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
  */
 
 /**
- * @class PGTStorage
- * The PGTStorage class is a generic class for PGT storage. This class should
- * not be instanciated itself but inherited by specific PGT storage classes.
+ * Basic class for PGT storage
+ * The CAS_PGTStorage_AbstractStorage class is a generic class for PGT storage.
+ * This class should not be instanciated itself but inherited by specific PGT
+ * storage classes.
  *
- * @author   Pascal Aubry <pascal.aubry at univ-rennes1.fr>
+ * @class CAS_PGTStorage_AbstractStorage
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Pascal Aubry <pascal.aubry@univ-rennes1.fr>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
  *
  * @ingroup internalPGTStorage
  */
 
-class PGTStorage
+abstract class CAS_PGTStorage_AbstractStorage
 {
     /**
      * @addtogroup internalPGTStorage
@@ -29,15 +57,20 @@ class PGTStorage
     /**
      * The constructor of the class, should be called only by inherited classes.
      *
-     * @param $cas_parent the CASclient instance that creates the current object.
+     * @param CAS_Client $cas_parent the CAS _client instance that creates the
+     * current object.
+     *
+     * @return void
      *
      * @protected
      */
-    function PGTStorage($cas_parent)
+    function __construct($cas_parent)
     {
         phpCAS::traceBegin();
         if ( !$cas_parent->isProxy() ) {
-            phpCAS::error('defining PGT storage makes no sense when not using a CAS proxy');
+            phpCAS::error(
+                'defining PGT storage makes no sense when not using a CAS proxy'
+            );
         }
         phpCAS::traceEnd();
     }
@@ -50,6 +83,8 @@ class PGTStorage
      * This virtual method returns an informational string giving the type of storage
      * used by the object (used for debugging purposes).
      *
+     * @return void
+     *
      * @public
      */
     function getStorageType()
@@ -61,6 +96,8 @@ class PGTStorage
      * This virtual method returns an informational string giving informations on the
      * parameters of the storage.(used for debugging purposes).
      *
+     * @return void
+     *
      * @public
      */
     function getStorageInfo()
@@ -73,22 +110,22 @@ class PGTStorage
     // ########################################################################
 
     /**
-     * string used to store an error message. Written by PGTStorage::setErrorMessage(),
-     * read by PGTStorage::getErrorMessage().
+     * string used to store an error message. Written by
+     * PGTStorage::setErrorMessage(), read by PGTStorage::getErrorMessage().
      *
      * @hideinitializer
-     * @private
      * @deprecated not used.
      */
-    var $_error_message=FALSE;
+    var $_error_message=false;
 
     /**
      * This method sets en error message, which can be read later by
      * PGTStorage::getErrorMessage().
      *
-     * @param $error_message an error message
+     * @param string $error_message an error message
+     *
+     * @return void
      *
-     * @protected
      * @deprecated not used.
      */
     function setErrorMessage($error_message)
@@ -102,7 +139,6 @@ class PGTStorage
      * @return an error message when set by PGTStorage::setErrorMessage(), FALSE
      * otherwise.
      *
-     * @public
      * @deprecated not used.
      */
     function getErrorMessage()
@@ -119,9 +155,8 @@ class PGTStorage
      * PGTStorage::init(), read by PGTStorage::isInitialized().
      *
      * @hideinitializer
-     * @private
      */
-    var $_initialized = FALSE;
+    var $_initialized = false;
 
     /**
      * This method tells if the storage has already been intialized.
@@ -138,11 +173,11 @@ class PGTStorage
     /**
      * This virtual method initializes the object.
      *
-     * @protected
+     * @return void
      */
     function init()
     {
-        $this->_initialized = TRUE;
+        $this->_initialized = true;
     }
 
     // ########################################################################
@@ -151,12 +186,14 @@ class PGTStorage
 
     /**
      * This virtual method stores a PGT and its corresponding PGT Iuo.
+     *
+     * @param string $pgt     the PGT
+     * @param string $pgt_iou the PGT iou
+     *
+     * @return void
+     *
      * @note Should never be called.
      *
-     * @param $pgt the PGT
-     * @param $pgt_iou the PGT iou
-     *
-     * @protected
      */
     function write($pgt,$pgt_iou)
     {
@@ -166,11 +203,12 @@ class PGTStorage
     /**
      * This virtual method reads a PGT corresponding to a PGT Iou and deletes
      * the corresponding storage entry.
+     *
+     * @param string $pgt_iou the PGT iou
+     *
+     * @return void
+     *
      * @note Should never be called.
-     *
-     * @param $pgt_iou the PGT iou
-     *
-     * @protected
      */
     function read($pgt_iou)
     {
@@ -181,8 +219,4 @@ class PGTStorage
 
 }
 
-// include specific PGT storage classes
-include_once(dirname(__FILE__).'/pgt-file.php');
-include_once(dirname(__FILE__).'/pgt-db.php');
-
-?>
+?>

include/limesurvey/admin/classes/phpCAS/CAS/PGTStorage/Db.php

@@ -0,0 +1,440 @@
+<?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 5
+ *
+ * @file     CAS/PGTStorage/Db.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Daniel Frett <daniel.frett@gmail.com>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+
+define('CAS_PGT_STORAGE_DB_DEFAULT_TABLE', 'cas_pgts');
+
+/**
+ * Basic class for PGT database storage
+ * The CAS_PGTStorage_Db class is a class for PGT database storage.
+ *
+ * @class    CAS_PGTStorage_Db
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Daniel Frett <daniel.frett@gmail.com>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ *
+ * @ingroup internalPGTStorageDb
+ */
+
+class CAS_PGTStorage_Db extends CAS_PGTStorage_AbstractStorage
+{
+    /**
+     * @addtogroup internalCAS_PGTStorageDb
+     * @{
+     */
+
+    /**
+     * the PDO object to use for database interactions
+     */
+    private $_pdo;
+
+    /**
+     * This method returns the PDO object to use for database interactions.
+     *
+     * @return the PDO object
+     */
+    private function _getPdo()
+    {
+        return $this->_pdo;
+    }
+
+    /**
+     * database connection options to use when creating a new PDO object
+     */
+    private $_dsn;
+    private $_username;
+    private $_password;
+    private $_table_options;
+
+    /**
+     * the table to use for storing/retrieving pgt's
+     */
+    private $_table;
+
+    /**
+     * This method returns the table to use when storing/retrieving PGT's
+     *
+     * @return the name of the pgt storage table.
+     */
+    private function _getTable()
+    {
+        return $this->_table;
+    }
+
+    // ########################################################################
+    //  DEBUGGING
+    // ########################################################################
+
+    /**
+     * This method returns an informational string giving the type of storage
+     * used by the object (used for debugging purposes).
+     *
+     * @return an informational string.
+     */
+    public function getStorageType()
+    {
+        return "db";
+    }
+
+    /**
+     * This method returns an informational string giving informations on the
+     * parameters of the storage.(used for debugging purposes).
+     *
+     * @return an informational string.
+     * @public
+     */
+    public function getStorageInfo()
+    {
+        return 'table=`'.$this->_getTable().'\'';
+    }
+
+    // ########################################################################
+    //  CONSTRUCTOR
+    // ########################################################################
+
+    /**
+     * The class constructor.
+     *
+     * @param CAS_Client $cas_parent     the CAS_Client instance that creates
+     * the object.
+     * @param string     $dsn_or_pdo     a dsn string to use for creating a PDO
+     * object or a PDO object
+     * @param string     $username       the username to use when connecting to
+     * the database
+     * @param string     $password       the password to use when connecting to
+     * the database
+     * @param string     $table          the table to use for storing and
+     * retrieving PGT's
+     * @param string     $driver_options any driver options to use when
+     * connecting to the database
+     */
+    public function __construct(
+        $cas_parent, $dsn_or_pdo, $username='', $password='', $table='',
+        $driver_options=null
+    ) {
+        phpCAS::traceBegin();
+        // call the ancestor's constructor
+        parent::__construct($cas_parent);
+
+        // set default values
+        if ( empty($table) ) {
+            $table = CAS_PGT_STORAGE_DB_DEFAULT_TABLE;
+        }
+        if ( !is_array($driver_options) ) {
+            $driver_options = array(PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION);
+        }
+
+        // store the specified parameters
+        if ($dsn_or_pdo instanceof PDO) {
+            $this->_pdo = $dsn_or_pdo;
+        } else {
+            $this->_dsn = $dsn_or_pdo;
+            $this->_username = $username;
+            $this->_password = $password;
+            $this->_driver_options = $driver_options;
+        }
+
+        // store the table name
+        $this->_table = $table;
+
+        phpCAS::traceEnd();
+    }
+
+    // ########################################################################
+    //  INITIALIZATION
+    // ########################################################################
+
+    /**
+     * This method is used to initialize the storage. Halts on error.
+     *
+     * @return void
+     */
+    public function init()
+    {
+        phpCAS::traceBegin();
+        // if the storage has already been initialized, return immediatly
+        if ($this->isInitialized()) {
+            return;
+        }
+
+        // initialize the base object
+        parent::init();
+
+        // create the PDO object if it doesn't exist already
+        if (!($this->_pdo instanceof PDO)) {
+            try {
+                $this->_pdo = new PDO(
+                    $this->_dsn, $this->_username, $this->_password,
+                    $this->_driver_options
+                );
+            }
+            catch(PDOException $e) {
+                phpCAS::error('Database connection error: ' . $e->getMessage());
+            }
+        }
+
+        phpCAS::traceEnd();
+    }
+
+    // ########################################################################
+    //  PDO database interaction
+    // ########################################################################
+
+    /**
+     * attribute that stores the previous error mode for the PDO handle while
+     * processing a transaction
+     */
+    private $_errMode;
+
+    /**
+     * This method will enable the Exception error mode on the PDO object
+     *
+     * @return void
+     */
+    private function _setErrorMode()
+    {
+        // get PDO object and enable exception error mode
+        $pdo = $this->_getPdo();
+        $this->_errMode = $pdo->getAttribute(PDO::ATTR_ERRMODE);
+        $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+    }
+
+    /**
+     * this method will reset the error mode on the PDO object
+     *
+     * @return void
+     */
+    private function _resetErrorMode()
+    {
+        // get PDO object and reset the error mode to what it was originally
+        $pdo = $this->_getPdo();
+        $pdo->setAttribute(PDO::ATTR_ERRMODE, $this->_errMode);
+    }
+
+    // ########################################################################
+    //  database queries
+    // ########################################################################
+    // these queries are potentially unsafe because the person using this library
+    // can set the table to use, but there is no reliable way to escape SQL
+    // fieldnames in PDO yet
+
+    /**
+     * This method returns the query used to create a pgt storage table
+     *
+     * @return the create table SQL, no bind params in query
+     */
+    protected function createTableSql()
+    {
+        return 'CREATE TABLE ' . $this->_getTable()
+            . ' (pgt_iou VARCHAR(255) NOT NULL PRIMARY KEY, pgt VARCHAR(255) NOT NULL)';
+    }
+
+    /**
+     * This method returns the query used to store a pgt
+     *
+     * @return the store PGT SQL, :pgt and :pgt_iou are the bind params contained
+     *         in the query
+     */
+    protected function storePgtSql()
+    {
+        return 'INSERT INTO ' . $this->_getTable()
+            . ' (pgt_iou, pgt) VALUES (:pgt_iou, :pgt)';
+    }
+
+    /**
+     * This method returns the query used to retrieve a pgt. the first column
+     * of the first row should contain the pgt
+     *
+     * @return the retrieve PGT SQL, :pgt_iou is the only bind param contained
+     *         in the query
+     */
+    protected function retrievePgtSql()
+    {
+        return 'SELECT pgt FROM ' . $this->_getTable() . ' WHERE pgt_iou = :pgt_iou';
+    }
+
+    /**
+     * This method returns the query used to delete a pgt.
+     *
+     * @return the delete PGT SQL, :pgt_iou is the only bind param contained in
+     *         the query
+     */
+    protected function deletePgtSql()
+    {
+        return 'DELETE FROM ' . $this->_getTable() . ' WHERE pgt_iou = :pgt_iou';
+    }
+
+    // ########################################################################
+    //  PGT I/O
+    // ########################################################################
+
+    /**
+     * This method creates the database table used to store pgt's and pgtiou's
+     *
+     * @return void
+     */
+    public function createTable()
+    {
+        phpCAS::traceBegin();
+
+        // initialize this PGTStorage object if it hasn't been initialized yet
+        if ( !$this->isInitialized() ) {
+            $this->init();
+        }
+
+        // initialize the PDO object for this method
+        $pdo = $this->_getPdo();
+        $this->_setErrorMode();
+
+        try {
+            $pdo->beginTransaction();
+
+            $query = $pdo->query($this->createTableSQL());
+            $query->closeCursor();
+
+            $pdo->commit();
+        }
+        catch(PDOException $e) {
+            // attempt rolling back the transaction before throwing a phpCAS error
+            try {
+                $pdo->rollBack();
+            }
+            catch(PDOException $e) {
+            }
+            phpCAS::error('error creating PGT storage table: ' . $e->getMessage());
+        }
+
+        // reset the PDO object
+        $this->_resetErrorMode();
+
+        phpCAS::traceEnd();
+    }
+
+    /**
+     * This method stores a PGT and its corresponding PGT Iou in the database.
+     * Echoes a warning on error.
+     *
+     * @param string $pgt     the PGT
+     * @param string $pgt_iou the PGT iou
+     *
+     * @return void
+     */
+    public function write($pgt, $pgt_iou)
+    {
+        phpCAS::traceBegin();
+
+        // initialize the PDO object for this method
+        $pdo = $this->_getPdo();
+        $this->_setErrorMode();
+
+        try {
+            $pdo->beginTransaction();
+
+            $query = $pdo->prepare($this->storePgtSql());
+            $query->bindValue(':pgt', $pgt, PDO::PARAM_STR);
+            $query->bindValue(':pgt_iou', $pgt_iou, PDO::PARAM_STR);
+            $query->execute();
+            $query->closeCursor();
+
+            $pdo->commit();
+        }
+        catch(PDOException $e) {
+            // attempt rolling back the transaction before throwing a phpCAS error
+            try {
+                $pdo->rollBack();
+            }
+            catch(PDOException $e) {
+            }
+            phpCAS::error('error writing PGT to database: ' . $e->getMessage());
+        }
+
+        // reset the PDO object
+        $this->_resetErrorMode();
+
+        phpCAS::traceEnd();
+    }
+
+    /**
+     * This method reads a PGT corresponding to a PGT Iou and deletes the
+     * corresponding db entry.
+     *
+     * @param string $pgt_iou the PGT iou
+     *
+     * @return the corresponding PGT, or FALSE on error
+     */
+    public function read($pgt_iou)
+    {
+        phpCAS::traceBegin();
+        $pgt = false;
+
+        // initialize the PDO object for this method
+        $pdo = $this->_getPdo();
+        $this->_setErrorMode();
+
+        try {
+            $pdo->beginTransaction();
+
+            // fetch the pgt for the specified pgt_iou
+            $query = $pdo->prepare($this->retrievePgtSql());
+            $query->bindValue(':pgt_iou', $pgt_iou, PDO::PARAM_STR);
+            $query->execute();
+            $pgt = $query->fetchColumn(0);
+            $query->closeCursor();
+
+            // delete the specified pgt_iou from the database
+            $query = $pdo->prepare($this->deletePgtSql());
+            $query->bindValue(':pgt_iou', $pgt_iou, PDO::PARAM_STR);
+            $query->execute();
+            $query->closeCursor();
+
+            $pdo->commit();
+        }
+        catch(PDOException $e) {
+            // attempt rolling back the transaction before throwing a phpCAS error
+            try {
+                $pdo->rollBack();
+            }
+            catch(PDOException $e) {
+            }
+            phpCAS::trace('error reading PGT from database: ' . $e->getMessage());
+        }
+
+        // reset the PDO object
+        $this->_resetErrorMode();
+
+        phpCAS::traceEnd();
+        return $pgt;
+    }
+
+    /** @} */
+
+}
+
+?>

include/limesurvey/admin/classes/phpCAS/CAS/PGTStorage/File.php

@@ -1,22 +1,48 @@
 <?php
 
 /**
- * @file CAS/PGTStorage/pgt-file.php
- * Basic class for PGT file storage
+ * 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 5
+ *
+ * @file     CAS/PGTStorage/AbstractStorage.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Pascal Aubry <pascal.aubry@univ-rennes1.fr>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
  */
 
 /**
- * @class PGTStorageFile
- * The PGTStorageFile class is a class for PGT file storage. An instance of
- * this class is returned by CASClient::SetPGTStorageFile().
+ * The CAS_PGTStorage_File class is a class for PGT file storage. An instance of
+ * this class is returned by CAS_Client::SetPGTStorageFile().
+ *
+ * @class    CAS_PGTStorage_File
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Pascal Aubry <pascal.aubry@univ-rennes1.fr>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
  *
- * @author Pascal Aubry <pascal.aubry at univ-rennes1.fr>
  *
  * @ingroup internalPGTStorageFile
  */
-if (!defined('PHPCAS_VERSION')) die();
 
-class PGTStorageFile extends PGTStorage
+class CAS_PGTStorage_File extends CAS_PGTStorage_AbstractStorage
 {
     /**
      * @addtogroup internalPGTStorageFile
@@ -44,26 +70,6 @@ class PGTStorageFile extends PGTStorage
         return $this->_path;
     }
 
-    /**
-     * a string telling the format to use to store PGT's (plain or xml). Written by
-     * PGTStorageFile::PGTStorageFile(), read by getFormat().
-     *
-     * @private
-     */
-    var $_format;
-
-    /**
-     * This method returns the format to use when storing PGT's on the filesystem.
-     *
-     * @return a string corresponding to the format used (plain or xml).
-     *
-     * @private
-     */
-    function getFormat()
-    {
-        return $this->_format;
-    }
-
     // ########################################################################
     //  DEBUGGING
     // ########################################################################
@@ -89,7 +95,7 @@ class PGTStorageFile extends PGTStorage
      */
     function getStorageInfo()
     {
-        return 'path=`'.$this->getPath().'\', format=`'.$this->getFormat().'\'';
+        return 'path=`'.$this->getPath().'\'';
     }
 
     // ########################################################################
@@ -97,53 +103,43 @@ class PGTStorageFile extends PGTStorage
     // ########################################################################
 
     /**
-     * The class constructor, called by CASClient::SetPGTStorageFile().
+     * The class constructor, called by CAS_Client::SetPGTStorageFile().
      *
-     * @param $cas_parent the CASClient instance that creates the object.
-     * @param $format the format used to store the PGT's (`plain' and `xml' allowed).
-     * @param $path the path where the PGT's should be stored
+     * @param CAS_Client $cas_parent the CAS_Client instance that creates the object.
+     * @param string     $path       the path where the PGT's should be stored
+     *
+     * @return void
      *
      * @public
      */
-    function PGTStorageFile($cas_parent,$format,$path)
+    function __construct($cas_parent,$path)
     {
         phpCAS::traceBegin();
         // call the ancestor's constructor
-        $this->PGTStorage($cas_parent);
-
-        if (empty($format) ) $format = CAS_PGT_STORAGE_FILE_DEFAULT_FORMAT;
-        if (empty($path) ) $path = CAS_PGT_STORAGE_FILE_DEFAULT_PATH;
+        parent::__construct($cas_parent);
 
+        if (empty($path)) {
+            $path = CAS_PGT_STORAGE_FILE_DEFAULT_PATH;
+        }
         // check that the path is an absolute path
-        if (getenv("OS")=="Windows_NT"){
+        if (getenv("OS")=="Windows_NT") {
 
             if (!preg_match('`^[a-zA-Z]:`', $path)) {
                 phpCAS::error('an absolute path is needed for PGT storage to file');
             }
 
-        }
-        else
-        {
+        } else {
 
             if ( $path[0] != '/' ) {
                 phpCAS::error('an absolute path is needed for PGT storage to file');
             }
 
             // store the path (with a leading and trailing '/')
-            $path = preg_replace('|[/]*$|','/',$path);
-            $path = preg_replace('|^[/]*|','/',$path);
+            $path = preg_replace('|[/]*$|', '/', $path);
+            $path = preg_replace('|^[/]*|', '/', $path);
         }
 
         $this->_path = $path;
-        // check the format and store it
-        switch ($format) {
-            case CAS_PGT_STORAGE_FILE_FORMAT_PLAIN:
-            case CAS_PGT_STORAGE_FILE_FORMAT_XML:
-                $this->_format = $format;
-                break;
-            default:
-                phpCAS::error('unknown PGT file storage format (`'.CAS_PGT_STORAGE_FILE_FORMAT_PLAIN.'\' and `'.CAS_PGT_STORAGE_FILE_FORMAT_XML.'\' allowed)');
-        }
         phpCAS::traceEnd();
     }
 
@@ -154,14 +150,16 @@ class PGTStorageFile extends PGTStorage
     /**
      * This method is used to initialize the storage. Halts on error.
      *
+     * @return void
      * @public
      */
     function init()
     {
         phpCAS::traceBegin();
         // if the storage has already been initialized, return immediatly
-        if ( $this->isInitialized() )
-        return;
+        if ($this->isInitialized()) {
+            return;
+        }
         // call the ancestor's method (mark as initialized)
         parent::init();
         phpCAS::traceEnd();
@@ -174,7 +172,7 @@ class PGTStorageFile extends PGTStorage
     /**
      * This method returns the filename corresponding to a PGT Iou.
      *
-     * @param $pgt_iou the PGT iou.
+     * @param string $pgt_iou the PGT iou.
      *
      * @return a filename
      * @private
@@ -182,7 +180,7 @@ class PGTStorageFile extends PGTStorage
     function getPGTIouFilename($pgt_iou)
     {
         phpCAS::traceBegin();
-        $filename = $this->getPath().$pgt_iou.'.'.$this->getFormat();
+        $filename = $this->getPath().$pgt_iou.'.plain';
         phpCAS::traceEnd($filename);
         return $filename;
     }
@@ -191,8 +189,10 @@ class PGTStorageFile extends PGTStorage
      * This method stores a PGT and its corresponding PGT Iou into a file. Echoes a
      * warning on error.
      *
-     * @param $pgt the PGT
-     * @param $pgt_iou the PGT iou
+     * @param string $pgt     the PGT
+     * @param string $pgt_iou the PGT iou
+     *
+     * @return void
      *
      * @public
      */
@@ -200,13 +200,21 @@ class PGTStorageFile extends PGTStorage
     {
         phpCAS::traceBegin();
         $fname = $this->getPGTIouFilename($pgt_iou);
-        if ( $f=fopen($fname,"w") ) {
-            if ( fputs($f,$pgt) === FALSE ) {
-                phpCAS::error('could not write PGT to `'.$fname.'\'');
+        if (!file_exists($fname)) {
+            touch($fname);
+            // Chmod will fail on windows
+            @chmod($fname, 0600);
+            if ($f=fopen($fname, "w")) {
+                if (fputs($f, $pgt) === false) {
+                    phpCAS::error('could not write PGT to `'.$fname.'\'');
+                }
+                phpCAS::trace('Successful write of PGT to `'.$fname.'\'');
+                fclose($f);
+            } else {
+                phpCAS::error('could not open `'.$fname.'\'');
             }
-            fclose($f);
         } else {
-            phpCAS::error('could not open `'.$fname.'\'');
+            phpCAS::error('File exists: `'.$fname.'\'');
         }
         phpCAS::traceEnd();
     }
@@ -215,7 +223,7 @@ class PGTStorageFile extends PGTStorage
      * This method reads a PGT corresponding to a PGT Iou and deletes the
      * corresponding file.
      *
-     * @param $pgt_iou the PGT iou
+     * @param string $pgt_iou the PGT iou
      *
      * @return the corresponding PGT, or FALSE on error
      *
@@ -224,20 +232,23 @@ class PGTStorageFile extends PGTStorage
     function read($pgt_iou)
     {
         phpCAS::traceBegin();
-        $pgt = FALSE;
+        $pgt = false;
         $fname = $this->getPGTIouFilename($pgt_iou);
-        if ( !($f=fopen($fname,"r")) ) {
-            phpCAS::trace('could not open `'.$fname.'\'');
-        } else {
-            if ( ($pgt=fgets($f)) === FALSE ) {
-                phpCAS::trace('could not read PGT from `'.$fname.'\'');
+        if (file_exists($fname)) {
+            if (!($f=fopen($fname, "r"))) {
+                phpCAS::error('could not open `'.$fname.'\'');
+            } else {
+                if (($pgt=fgets($f)) === false) {
+                    phpCAS::error('could not read PGT from `'.$fname.'\'');
+                }
+                phpCAS::trace('Successful read of PGT to `'.$fname.'\'');
+                fclose($f);
             }
-            fclose($f);
+            // delete the PGT file
+            @unlink($fname);
+        } else {
+            phpCAS::error('No such file `'.$fname.'\'');
         }
-
-        // delete the PGT file
-        @unlink($fname);
-
         phpCAS::traceEnd($pgt);
         return $pgt;
     }
@@ -245,6 +256,4 @@ class PGTStorageFile extends PGTStorage
     /** @} */
 
 }
-
-
 ?>

include/limesurvey/admin/classes/phpCAS/CAS/PGTStorage/pgt-db.php

@@ -1,191 +0,0 @@
-<?php
-if (!defined('PHPCAS_VERSION')) die();
-
-/**
- * @file CAS/PGTStorage/pgt-db.php
- * Basic class for PGT database storage
- */
-
-/**
- * @class PGTStorageDB
- * The PGTStorageDB class is a class for PGT database storage. An instance of
- * this class is returned by CASClient::SetPGTStorageDB().
- *
- * @author Pascal Aubry <pascal.aubry at univ-rennes1.fr>
- *
- * @ingroup internalPGTStorageDB
- */
-
-class PGTStorageDB extends PGTStorage
-{
-    /**
-     * @addtogroup internalPGTStorageDB
-     * @{
-     */
-
-    /**
-     * a string representing a PEAR DB URL to connect to the database. Written by
-     * PGTStorageDB::PGTStorageDB(), read by getURL().
-     *
-     * @hideinitializer
-     * @private
-     */
-    var $_url='';
-
-    /**
-     * This method returns the PEAR DB URL to use to connect to the database.
-     *
-     * @return a PEAR DB URL
-     *
-     * @private
-     */
-    function getURL()
-    {
-        return $this->_url;
-    }
-
-    /**
-     * The handle of the connection to the database where PGT's are stored. Written by
-     * PGTStorageDB::init(), read by getLink().
-     *
-     * @hideinitializer
-     * @private
-     */
-    var $_link = null;
-
-    /**
-     * This method returns the handle of the connection to the database where PGT's are
-     * stored.
-     *
-     * @return a handle of connection.
-     *
-     * @private
-     */
-    function getLink()
-    {
-        return $this->_link;
-    }
-
-    /**
-     * The name of the table where PGT's are stored. Written by
-     * PGTStorageDB::PGTStorageDB(), read by getTable().
-     *
-     * @hideinitializer
-     * @private
-     */
-    var $_table = '';
-
-    /**
-     * This method returns the name of the table where PGT's are stored.
-     *
-     * @return the name of a table.
-     *
-     * @private
-     */
-    function getTable()
-    {
-        return $this->_table;
-    }
-
-    // ########################################################################
-    //  DEBUGGING
-    // ########################################################################
-
-    /**
-     * This method returns an informational string giving the type of storage
-     * used by the object (used for debugging purposes).
-     *
-     * @return an informational string.
-     * @public
-     */
-    function getStorageType()
-    {
-        return "database";
-    }
-
-    /**
-     * This method returns an informational string giving informations on the
-     * parameters of the storage.(used for debugging purposes).
-     *
-     * @public
-     */
-    function getStorageInfo()
-    {
-        return 'url=`'.$this->getURL().'\', table=`'.$this->getTable().'\'';
-    }
-
-    // ########################################################################
-    //  CONSTRUCTOR
-    // ########################################################################
-
-    /**
-     * The class constructor, called by CASClient::SetPGTStorageDB().
-     *
-     * @param $cas_parent the CASClient instance that creates the object.
-     * @param $user the user to access the data with
-     * @param $password the user's password
-     * @param $database_type the type of the database hosting the data
-     * @param $hostname the server hosting the database
-     * @param $port the port the server is listening on
-     * @param $database the name of the database
-     * @param $table the name of the table storing the data
-     *
-     * @public
-     */
-    function PGTStorageDB($cas_parent,$user,$password,$database_type,$hostname,$port,$database,$table)
-    {
-        phpCAS::traceBegin();
-
-        // call the ancestor's constructor
-        $this->PGTStorage($cas_parent);
-
-        if ( empty($database_type) ) $database_type = CAS_PGT_STORAGE_DB_DEFAULT_DATABASE_TYPE;
-        if ( empty($hostname) ) $hostname = CAS_PGT_STORAGE_DB_DEFAULT_HOSTNAME;
-        if ( $port==0 ) $port = CAS_PGT_STORAGE_DB_DEFAULT_PORT;
-        if ( empty($database) ) $database = CAS_PGT_STORAGE_DB_DEFAULT_DATABASE;
-        if ( empty($table) ) $table = CAS_PGT_STORAGE_DB_DEFAULT_TABLE;
-
-        // build and store the PEAR DB URL
-        $this->_url = $database_type.':'.'//'.$user.':'.$password.'@'.$hostname.':'.$port.'/'.$database;
-
-        // XXX should use setURL and setTable
-        phpCAS::traceEnd();
-    }
-
-    // ########################################################################
-    //  INITIALIZATION
-    // ########################################################################
-
-    /**
-     * This method is used to initialize the storage. Halts on error.
-     *
-     * @public
-     */
-    function init()
-    {
-        phpCAS::traceBegin();
-        // if the storage has already been initialized, return immediatly
-        if ( $this->isInitialized() )
-        return;
-        // call the ancestor's method (mark as initialized)
-        parent::init();
-
-        //include phpDB library (the test was introduced in release 0.4.8 for
-        //the integration into Tikiwiki).
-        if (!class_exists('DB')) {
-            include_once('DB.php');
-        }
-
-        // try to connect to the database
-        $this->_link = DB::connect($this->getURL());
-        if ( DB::isError($this->_link) ) {
-            phpCAS::error('could not connect to database ('.DB::errorMessage($this->_link).')');
-        }
-        var_dump($this->_link);
-        phpCAS::traceBEnd();
-    }
-
-    /** @} */
-}
-
-?>

include/limesurvey/admin/classes/phpCAS/CAS/ProxiedService.php

@@ -0,0 +1,72 @@
+<?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 5
+ *
+ * @file     CAS/ProxiedService.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
+ */
+
+/**
+ * This interface defines methods that allow proxy-authenticated service handlers
+ * to interact with phpCAS.
+ *
+ * Proxy service handlers must implement this interface as well as call
+ * phpCAS::initializeProxiedService($this) at some point in their implementation.
+ *
+ * While not required, proxy-authenticated service handlers are encouraged to
+ * implement the CAS_ProxiedService_Testable interface to facilitate unit testing.
+ *
+ * @class    CAS_ProxiedService
+ * @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
+ */
+interface CAS_ProxiedService
+{
+
+    /**
+     * Answer a service identifier (URL) for whom we should fetch a proxy ticket.
+     *
+     * @return string
+     * @throws Exception If no service url is available.
+     */
+    public function getServiceUrl ();
+
+    /**
+     * Register a proxy ticket with the ProxiedService that it can use when
+     * making requests.
+     *
+     * @param string $proxyTicket Proxy ticket string
+     *
+     * @return void
+     * @throws InvalidArgumentException If the $proxyTicket is invalid.
+     * @throws CAS_OutOfSequenceException If called after a proxy ticket has
+     * already been initialized/set.
+     */
+    public function setProxyTicket ($proxyTicket);
+
+}
+?>

include/limesurvey/admin/classes/phpCAS/CAS/ProxiedService/Abstract.php

@@ -0,0 +1,149 @@
+<?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 5
+ *
+ * @file     CAS/ProxiedService/Abstract.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
+ */
+
+/**
+ * This class implements common methods for ProxiedService implementations included
+ * with phpCAS.
+ *
+ * @class    CAS_ProxiedService_Abstract
+ * @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
+ */
+abstract class CAS_ProxiedService_Abstract
+implements CAS_ProxiedService, CAS_ProxiedService_Testable
+{
+
+    /**
+     * The proxy ticket that can be used when making service requests.
+     * @var string $_proxyTicket;
+     */
+    private $_proxyTicket;
+
+    /**
+     * Register a proxy ticket with the Proxy that it can use when making requests.
+     *
+     * @param string $proxyTicket proxy ticket
+     *
+     * @return void
+     * @throws InvalidArgumentException If the $proxyTicket is invalid.
+     * @throws CAS_OutOfSequenceException If called after a proxy ticket has
+     *         already been initialized/set.
+     */
+    public function setProxyTicket ($proxyTicket)
+    {
+        if (empty($proxyTicket)) {
+            throw new CAS_InvalidArgumentException(
+                'Trying to initialize with an empty proxy ticket.'
+            );
+        }
+        if (!empty($this->_proxyTicket)) {
+            throw new CAS_OutOfSequenceException(
+                'Already initialized, cannot change the proxy ticket.'
+            );
+        }
+        $this->_proxyTicket = $proxyTicket;
+    }
+
+    /**
+     * Answer the proxy ticket to be used when making requests.
+     *
+     * @return string
+     * @throws CAS_OutOfSequenceException If called before a proxy ticket has
+     * already been initialized/set.
+     */
+    protected function getProxyTicket ()
+    {
+        if (empty($this->_proxyTicket)) {
+            throw new CAS_OutOfSequenceException(
+                'No proxy ticket yet. Call $this->initializeProxyTicket() to aquire the proxy ticket.'
+            );
+        }
+
+        return $this->_proxyTicket;
+    }
+
+    /**
+     * @var CAS_Client $_casClient;
+     */
+    private $_casClient;
+
+    /**
+     * Use a particular CAS_Client->initializeProxiedService() rather than the
+     * static phpCAS::initializeProxiedService().
+     *
+     * This method should not be called in standard operation, but is needed for unit
+     * testing.
+     *
+     * @param CAS_Client $casClient cas client
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after a proxy ticket has
+     * already been initialized/set.
+     */
+    public function setCasClient (CAS_Client $casClient)
+    {
+        if (!empty($this->_proxyTicket)) {
+            throw new CAS_OutOfSequenceException(
+                'Already initialized, cannot change the CAS_Client.'
+            );
+        }
+
+        $this->_casClient = $casClient;
+    }
+
+    /**
+     * Fetch our proxy ticket.
+     *
+     * Descendent classes should call this method once their service URL is available
+     * to initialize their proxy ticket.
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after a proxy ticket has
+     * already been initialized.
+     */
+    protected function initializeProxyTicket()
+    {
+        if (!empty($this->_proxyTicket)) {
+            throw new CAS_OutOfSequenceException(
+                'Already initialized, cannot initialize again.'
+            );
+        }
+        // Allow usage of a particular CAS_Client for unit testing.
+        if (empty($this->_casClient)) {
+            phpCAS::initializeProxiedService($this);
+        } else {
+            $this->_casClient->initializeProxiedService($this);
+        }
+    }
+
+}
+?>

include/limesurvey/admin/classes/phpCAS/CAS/ProxiedService/Exception.php

@@ -0,0 +1,46 @@
+<?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 5
+ *
+ * @file     CAS/ProxiedService/Exception.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
+ */
+
+/**
+ * An Exception for problems communicating with a proxied service.
+ *
+ * @class    CAS_ProxiedService_Exception
+ * @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_ProxiedService_Exception
+extends Exception
+implements CAS_Exception
+{
+
+}
+?>

include/limesurvey/admin/classes/phpCAS/CAS/ProxiedService/Http.php

@@ -0,0 +1,91 @@
+<?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 5
+ *
+ * @file     CAS/ProxiedService/Http.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
+ */
+
+/**
+ * This interface defines methods that clients should use for configuring, sending,
+ * and receiving proxied HTTP requests.
+ *
+ * @class    CAS_ProxiedService_Http
+ * @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
+ */
+interface CAS_ProxiedService_Http
+{
+
+    /*********************************************************
+     * Configure the Request
+    *********************************************************/
+
+    /**
+     * Set the URL of the Request
+     *
+     * @param string $url Url to set
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the Request has been sent.
+     */
+    public function setUrl ($url);
+
+    /*********************************************************
+     * 2. Send the Request
+    *********************************************************/
+
+    /**
+     * Perform the request.
+     *
+     * @return bool TRUE on success, FALSE on failure.
+     * @throws CAS_OutOfSequenceException If called multiple times.
+     */
+    public function send ();
+
+    /*********************************************************
+     * 3. Access the response
+    *********************************************************/
+
+    /**
+     * Answer the headers of the response.
+     *
+     * @return array An array of header strings.
+     * @throws CAS_OutOfSequenceException If called before the Request has been sent.
+     */
+    public function getResponseHeaders ();
+
+    /**
+     * Answer the body of response.
+     *
+     * @return string
+     * @throws CAS_OutOfSequenceException If called before the Request has been sent.
+     */
+    public function getResponseBody ();
+
+}
+?>

include/limesurvey/admin/classes/phpCAS/CAS/ProxiedService/Http/Abstract.php

@@ -0,0 +1,360 @@
+<?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 5
+ *
+ * @file     CAS/ProxiedService/Http/Abstract.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
+ */
+
+/**
+ * This class implements common methods for ProxiedService implementations included
+ * with phpCAS.
+ *
+ * @class    CAS_ProxiedService_Http_Abstract
+ * @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
+ */
+abstract class CAS_ProxiedService_Http_Abstract extends
+CAS_ProxiedService_Abstract implements CAS_ProxiedService_Http
+{
+    /**
+     * The HTTP request mechanism talking to the target service.
+     *
+     * @var CAS_Request_RequestInterface $requestHandler
+     */
+    protected $requestHandler;
+
+    /**
+     * The storage mechanism for cookies set by the target service.
+     *
+     * @var CAS_CookieJar $_cookieJar
+     */
+    private $_cookieJar;
+
+    /**
+     * Constructor.
+     *
+     * @param CAS_Request_RequestInterface $requestHandler request handler object
+     * @param CAS_CookieJar                $cookieJar      cookieJar object
+     *
+     * @return void
+     */
+    public function __construct(CAS_Request_RequestInterface $requestHandler,
+        CAS_CookieJar $cookieJar
+    ) {
+        $this->requestHandler = $requestHandler;
+        $this->_cookieJar = $cookieJar;
+    }
+
+    /**
+     * The target service url.
+     * @var string $_url;
+     */
+    private $_url;
+
+    /**
+     * Answer a service identifier (URL) for whom we should fetch a proxy ticket.
+     *
+     * @return string
+     * @throws Exception If no service url is available.
+     */
+    public function getServiceUrl()
+    {
+        if (empty($this->_url)) {
+            throw new CAS_ProxiedService_Exception(
+                'No URL set via ' . get_class($this) . '->setUrl($url).'
+            );
+        }
+
+        return $this->_url;
+    }
+
+    /*********************************************************
+     * Configure the Request
+     *********************************************************/
+
+    /**
+     * Set the URL of the Request
+     *
+     * @param string $url url to set
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the Request has been sent.
+     */
+    public function setUrl($url)
+    {
+        if ($this->hasBeenSent()) {
+            throw new CAS_OutOfSequenceException(
+                'Cannot set the URL, request already sent.'
+            );
+        }
+        if (!is_string($url)) {
+            throw new CAS_InvalidArgumentException('$url must be a string.');
+        }
+
+        $this->_url = $url;
+    }
+
+    /*********************************************************
+     * 2. Send the Request
+     *********************************************************/
+
+    /**
+     * Perform the request.
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called multiple times.
+     * @throws CAS_ProxyTicketException If there is a proxy-ticket failure.
+     *		The code of the Exception will be one of:
+     *			PHPCAS_SERVICE_PT_NO_SERVER_RESPONSE
+     *			PHPCAS_SERVICE_PT_BAD_SERVER_RESPONSE
+     *			PHPCAS_SERVICE_PT_FAILURE
+     * @throws CAS_ProxiedService_Exception If there is a failure sending the
+     * request to the target service.
+     */
+    public function send()
+    {
+        if ($this->hasBeenSent()) {
+            throw new CAS_OutOfSequenceException(
+                'Cannot send, request already sent.'
+            );
+        }
+
+        phpCAS::traceBegin();
+
+        // Get our proxy ticket and append it to our URL.
+        $this->initializeProxyTicket();
+        $url = $this->getServiceUrl();
+        if (strstr($url, '?') === false) {
+            $url = $url . '?ticket=' . $this->getProxyTicket();
+        } else {
+            $url = $url . '&ticket=' . $this->getProxyTicket();
+        }
+
+        try {
+            $this->makeRequest($url);
+        } catch (Exception $e) {
+            phpCAS::traceEnd();
+            throw $e;
+        }
+    }
+
+    /**
+     * Indicator of the number of requests (including redirects performed.
+     *
+     * @var int $_numRequests;
+     */
+    private $_numRequests = 0;
+
+    /**
+     * The response headers.
+     *
+     * @var array $_responseHeaders;
+     */
+    private $_responseHeaders = array();
+
+    /**
+     * The response status code.
+     *
+     * @var string $_responseStatusCode;
+     */
+    private $_responseStatusCode = '';
+
+    /**
+     * The response headers.
+     *
+     * @var string $_responseBody;
+     */
+    private $_responseBody = '';
+
+    /**
+     * Build and perform a request, following redirects
+     *
+     * @param string $url url for the request
+     *
+     * @return void
+     * @throws CAS_ProxyTicketException If there is a proxy-ticket failure.
+     *		The code of the Exception will be one of:
+     *			PHPCAS_SERVICE_PT_NO_SERVER_RESPONSE
+     *			PHPCAS_SERVICE_PT_BAD_SERVER_RESPONSE
+     *			PHPCAS_SERVICE_PT_FAILURE
+     * @throws CAS_ProxiedService_Exception If there is a failure sending the
+     * request to the target service.
+     */
+    protected function makeRequest($url)
+    {
+        // Verify that we are not in a redirect loop
+        $this->_numRequests++;
+        if ($this->_numRequests > 4) {
+            $message = 'Exceeded the maximum number of redirects (3) in proxied service request.';
+            phpCAS::trace($message);
+            throw new CAS_ProxiedService_Exception($message);
+        }
+
+        // Create a new request.
+        $request = clone $this->requestHandler;
+        $request->setUrl($url);
+
+        // Add any cookies to the request.
+        $request->addCookies($this->_cookieJar->getCookies($url));
+
+        // Add any other parts of the request needed by concrete classes
+        $this->populateRequest($request);
+
+        // Perform the request.
+        phpCAS::trace('Performing proxied service request to \'' . $url . '\'');
+        if (!$request->send()) {
+            $message = 'Could not perform proxied service request to URL`'
+            . $url . '\'. ' . $request->getErrorMessage();
+            phpCAS::trace($message);
+            throw new CAS_ProxiedService_Exception($message);
+        }
+
+        // Store any cookies from the response;
+        $this->_cookieJar->storeCookies($url, $request->getResponseHeaders());
+
+        // Follow any redirects
+        if ($redirectUrl = $this->getRedirectUrl($request->getResponseHeaders())
+        ) {
+            phpCAS::trace('Found redirect:' . $redirectUrl);
+            $this->makeRequest($redirectUrl);
+        } else {
+
+            $this->_responseHeaders = $request->getResponseHeaders();
+            $this->_responseBody = $request->getResponseBody();
+            $this->_responseStatusCode = $request->getResponseStatusCode();
+        }
+    }
+
+    /**
+     * Add any other parts of the request needed by concrete classes
+     *
+     * @param CAS_Request_RequestInterface $request request interface object
+     *
+     * @return void
+     */
+    abstract protected function populateRequest(
+        CAS_Request_RequestInterface $request
+    );
+
+    /**
+     * Answer a redirect URL if a redirect header is found, otherwise null.
+     *
+     * @param array $responseHeaders response header to extract a redirect from
+     *
+     * @return string or null
+     */
+    protected function getRedirectUrl(array $responseHeaders)
+    {
+        // Check for the redirect after authentication
+        foreach ($responseHeaders as $header) {
+            if ( preg_match('/^(Location:|URI:)\s*([^\s]+.*)$/', $header, $matches)
+            ) {
+                return trim(array_pop($matches));
+            }
+        }
+        return null;
+    }
+
+    /*********************************************************
+     * 3. Access the response
+     *********************************************************/
+
+    /**
+     * Answer true if our request has been sent yet.
+     *
+     * @return bool
+     */
+    protected function hasBeenSent()
+    {
+        return ($this->_numRequests > 0);
+    }
+
+    /**
+     * Answer the headers of the response.
+     *
+     * @return array An array of header strings.
+     * @throws CAS_OutOfSequenceException If called before the Request has been sent.
+     */
+    public function getResponseHeaders()
+    {
+        if (!$this->hasBeenSent()) {
+            throw new CAS_OutOfSequenceException(
+                'Cannot access response, request not sent yet.'
+            );
+        }
+
+        return $this->_responseHeaders;
+    }
+
+    /**
+     * Answer HTTP status code of the response
+     *
+     * @return int
+     * @throws CAS_OutOfSequenceException If called before the Request has been sent.
+     */
+    public function getResponseStatusCode()
+    {
+        if (!$this->hasBeenSent()) {
+            throw new CAS_OutOfSequenceException(
+                'Cannot access response, request not sent yet.'
+            );
+        }
+
+        return $this->_responseStatusCode;
+    }
+
+    /**
+     * Answer the body of response.
+     *
+     * @return string
+     * @throws CAS_OutOfSequenceException If called before the Request has been sent.
+     */
+    public function getResponseBody()
+    {
+        if (!$this->hasBeenSent()) {
+            throw new CAS_OutOfSequenceException(
+                'Cannot access response, request not sent yet.'
+            );
+        }
+
+        return $this->_responseBody;
+    }
+
+    /**
+     * Answer the cookies from the response. This may include cookies set during
+     * redirect responses.
+     *
+     * @return array An array containing cookies. E.g. array('name' => 'val');
+     */
+    public function getCookies()
+    {
+        return $this->_cookieJar->getCookies($this->getServiceUrl());
+    }
+
+}
+?>

include/limesurvey/admin/classes/phpCAS/CAS/ProxiedService/Http/Get.php

@@ -0,0 +1,85 @@
+<?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 5
+ *
+ * @file     CAS/ProxiedService/Http/Get.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
+ */
+
+/**
+ * This class is used to make proxied service requests via the HTTP GET method.
+ *
+ * Usage Example:
+ *
+ *	try {
+ *		$service = phpCAS::getProxiedService(PHPCAS_PROXIED_SERVICE_HTTP_GET);
+ *		$service->setUrl('http://www.example.com/path/');
+ *		$service->send();
+ *		if ($service->getResponseStatusCode() == 200)
+ *			return $service->getResponseBody();
+ *		else
+ *			// The service responded with an error code 404, 500, etc.
+ *			throw new Exception('The service responded with an error.');
+ *
+ * 	} catch (CAS_ProxyTicketException $e) {
+ *	    if ($e->getCode() == PHPCAS_SERVICE_PT_FAILURE)
+ *			return "Your login has timed out. You need to log in again.";
+ *		else
+ *			// Other proxy ticket errors are from bad request format
+ *          // (shouldn't happen) or CAS server failure (unlikely)
+ *          // so lets just stop if we hit those.
+ *			throw $e;
+ *	} catch (CAS_ProxiedService_Exception $e) {
+ *		// Something prevented the service request from being sent or received.
+ *		// We didn't even get a valid error response (404, 500, etc), so this
+ *		// might be caused by a network error or a DNS resolution failure.
+ *		// We could handle it in some way, but for now we will just stop.
+ *		throw $e;
+ *	}
+ *
+ * @class    CAS_ProxiedService_Http_Get
+ * @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_ProxiedService_Http_Get
+extends CAS_ProxiedService_Http_Abstract
+{
+
+    /**
+     * Add any other parts of the request needed by concrete classes
+     *
+     * @param CAS_Request_RequestInterface $request request interface
+     *
+     * @return void
+     */
+    protected function populateRequest (CAS_Request_RequestInterface $request)
+    {
+        // do nothing, since the URL has already been sent and that is our
+        // only data.
+    }
+}
+?>

include/limesurvey/admin/classes/phpCAS/CAS/ProxiedService/Http/Post.php

@@ -0,0 +1,152 @@
+<?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 5
+ *
+ * @file     CAS/ProxiedService/Http/Post.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
+ */
+
+/**
+ * This class is used to make proxied service requests via the HTTP POST method.
+ *
+ * Usage Example:
+ *
+ *	try {
+ * 		$service = phpCAS::getProxiedService(PHPCAS_PROXIED_SERVICE_HTTP_POST);
+ * 		$service->setUrl('http://www.example.com/path/');
+ *		$service->setContentType('text/xml');
+ *		$service->setBody('<?xml version="1.0"?'.'><methodCall><methodName>example.search</methodName></methodCall>');
+ * 		$service->send();
+ *		if ($service->getResponseStatusCode() == 200)
+ *			return $service->getResponseBody();
+ *		else
+ *			// The service responded with an error code 404, 500, etc.
+ *			throw new Exception('The service responded with an error.');
+ *
+ *	} catch (CAS_ProxyTicketException $e) {
+ *		if ($e->getCode() == PHPCAS_SERVICE_PT_FAILURE)
+ *			return "Your login has timed out. You need to log in again.";
+ *		else
+ *			// Other proxy ticket errors are from bad request format
+ *          // (shouldn't happen) or CAS server failure (unlikely) so lets just
+ *          // stop if we hit those.
+ *			throw $e;
+ *	} catch (CAS_ProxiedService_Exception $e) {
+ *		// Something prevented the service request from being sent or received.
+ *		// We didn't even get a valid error response (404, 500, etc), so this
+ *		// might be caused by a network error or a DNS resolution failure.
+ *		// We could handle it in some way, but for now we will just stop.
+ *		throw $e;
+ *	}
+ *
+ * @class    CAS_ProxiedService_Http_Post
+ * @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_ProxiedService_Http_Post
+extends CAS_ProxiedService_Http_Abstract
+{
+
+    /**
+     * The content-type of this request
+     *
+     * @var string $_contentType
+     */
+    private $_contentType;
+
+    /**
+     * The body of the this request
+     *
+     * @var string $_body
+     */
+    private $_body;
+
+    /**
+     * Set the content type of this POST request.
+     *
+     * @param string $contentType content type
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the Request has been sent.
+     */
+    public function setContentType ($contentType)
+    {
+        if ($this->hasBeenSent()) {
+            throw new CAS_OutOfSequenceException(
+                'Cannot set the content type, request already sent.'
+            );
+        }
+
+        $this->_contentType = $contentType;
+    }
+
+    /**
+     * Set the body of this POST request.
+     *
+     * @param string $body body to set
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the Request has been sent.
+     */
+    public function setBody ($body)
+    {
+        if ($this->hasBeenSent()) {
+            throw new CAS_OutOfSequenceException(
+                'Cannot set the body, request already sent.'
+            );
+        }
+
+        $this->_body = $body;
+    }
+
+    /**
+     * Add any other parts of the request needed by concrete classes
+     *
+     * @param CAS_Request_RequestInterface $request request interface class
+     *
+     * @return void
+     */
+    protected function populateRequest (CAS_Request_RequestInterface $request)
+    {
+        if (empty($this->_contentType) && !empty($this->_body)) {
+            throw new CAS_ProxiedService_Exception(
+                "If you pass a POST body, you must specify a content type via "
+                .get_class($this).'->setContentType($contentType).'
+            );
+        }
+
+        $request->makePost();
+        if (!empty($this->_body)) {
+            $request->addHeader('Content-Type: '.$this->_contentType);
+            $request->addHeader('Content-Length: '.strlen($this->_body));
+            $request->setPostBody($this->_body);
+        }
+    }
+
+
+}
+?>

include/limesurvey/admin/classes/phpCAS/CAS/ProxiedService/Imap.php

@@ -0,0 +1,280 @@
+<?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 5
+ *
+ * @file     CAS/ProxiedService/Imap.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
+ */
+
+/**
+ * Provides access to a proxy-authenticated IMAP stream
+ *
+ * @class    CAS_ProxiedService_Imap
+ * @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_ProxiedService_Imap
+extends CAS_ProxiedService_Abstract
+{
+
+    /**
+     * The username to send via imap_open.
+     *
+     * @var string $_username;
+     */
+    private $_username;
+
+    /**
+     * Constructor.
+     *
+     * @param string $username Username
+     *
+     * @return void
+     */
+    public function __construct ($username)
+    {
+        if (!is_string($username) || !strlen($username)) {
+            throw new CAS_InvalidArgumentException('Invalid username.');
+        }
+
+        $this->_username = $username;
+    }
+
+    /**
+     * The target service url.
+     * @var string $_url;
+     */
+    private $_url;
+
+    /**
+     * Answer a service identifier (URL) for whom we should fetch a proxy ticket.
+     *
+     * @return string
+     * @throws Exception If no service url is available.
+     */
+    public function getServiceUrl ()
+    {
+        if (empty($this->_url)) {
+            throw new CAS_ProxiedService_Exception(
+                'No URL set via '.get_class($this).'->getServiceUrl($url).'
+            );
+        }
+
+        return $this->_url;
+    }
+
+    /*********************************************************
+     * Configure the Stream
+    *********************************************************/
+
+    /**
+     * Set the URL of the service to pass to CAS for proxy-ticket retrieval.
+     *
+     * @param string $url Url to set
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the stream has been opened.
+     */
+    public function setServiceUrl ($url)
+    {
+        if ($this->hasBeenOpened()) {
+            throw new CAS_OutOfSequenceException(
+                'Cannot set the URL, stream already opened.'
+            );
+        }
+        if (!is_string($url) || !strlen($url)) {
+            throw new CAS_InvalidArgumentException('Invalid url.');
+        }
+
+        $this->_url = $url;
+    }
+
+    /**
+     * The mailbox to open. See the $mailbox parameter of imap_open().
+     *
+     * @var string $_mailbox
+     */
+    private $_mailbox;
+
+    /**
+     * Set the mailbox to open. See the $mailbox parameter of imap_open().
+     *
+     * @param string $mailbox Mailbox to set
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the stream has been opened.
+     */
+    public function setMailbox ($mailbox)
+    {
+        if ($this->hasBeenOpened()) {
+            throw new CAS_OutOfSequenceException(
+                'Cannot set the mailbox, stream already opened.'
+            );
+        }
+        if (!is_string($mailbox) || !strlen($mailbox)) {
+            throw new CAS_InvalidArgumentException('Invalid mailbox.');
+        }
+
+        $this->_mailbox = $mailbox;
+    }
+
+    /**
+     * A bit mask of options to pass to imap_open() as the $options parameter.
+     *
+     * @var int $_options
+     */
+    private $_options = null;
+
+    /**
+     * Set the options for opening the stream. See the $options parameter of
+     * imap_open().
+     *
+     * @param int $options Options for the stream
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the stream has been opened.
+     */
+    public function setOptions ($options)
+    {
+        if ($this->hasBeenOpened()) {
+            throw new CAS_OutOfSequenceException(
+                'Cannot set options, stream already opened.'
+            );
+        }
+        if (!is_int($options)) {
+            throw new CAS_InvalidArgumentException('Invalid options.');
+        }
+
+        $this->_options = $options;
+    }
+
+    /*********************************************************
+     * 2. Open the stream
+    *********************************************************/
+
+    /**
+     * Open the IMAP stream (similar to imap_open()).
+     *
+     * @return resource Returns an IMAP stream on success
+     * @throws CAS_OutOfSequenceException If called multiple times.
+     * @throws CAS_ProxyTicketException If there is a proxy-ticket failure.
+     *		The code of the Exception will be one of:
+     *			PHPCAS_SERVICE_PT_NO_SERVER_RESPONSE
+     *			PHPCAS_SERVICE_PT_BAD_SERVER_RESPONSE
+     *			PHPCAS_SERVICE_PT_FAILURE
+     * @throws CAS_ProxiedService_Exception If there is a failure sending the
+     *         request to the target service.
+     */
+    public function open ()
+    {
+        if ($this->hasBeenOpened()) {
+            throw new CAS_OutOfSequenceException('Stream already opened.');
+        }
+        if (empty($this->_mailbox)) {
+            throw new CAS_ProxiedService_Exception(
+                'You must specify a mailbox via '.get_class($this)
+                .'->setMailbox($mailbox)'
+            );
+        }
+
+        phpCAS::traceBegin();
+
+        // Get our proxy ticket and append it to our URL.
+        $this->initializeProxyTicket();
+        phpCAS::trace('opening IMAP mailbox `'.$this->_mailbox.'\'...');
+        $this->_stream = @imap_open(
+            $this->_mailbox, $this->_username, $this->getProxyTicket(),
+            $this->_options
+        );
+        if ($this->_stream) {
+            phpCAS::trace('ok');
+        } else {
+            phpCAS::trace('could not open mailbox');
+            // @todo add localization integration.
+            $message = 'IMAP Error: '.$this->_url.' '. var_export(imap_errors(), true);
+            phpCAS::trace($message);
+            throw new CAS_ProxiedService_Exception($message);
+        }
+
+        phpCAS::traceEnd();
+        return $this->_stream;
+    }
+
+    /**
+     * Answer true if our request has been sent yet.
+     *
+     * @return bool
+     */
+    protected function hasBeenOpened ()
+    {
+        return !empty($this->_stream);
+    }
+
+    /*********************************************************
+     * 3. Access the result
+    *********************************************************/
+    /**
+     * The IMAP stream
+     *
+     * @var resource $_stream
+     */
+    private $_stream;
+
+    /**
+     * Answer the IMAP stream
+     *
+     * @return resource
+     */
+    public function getStream ()
+    {
+        if (!$this->hasBeenOpened()) {
+            throw new CAS_OutOfSequenceException(
+                'Cannot access stream, not opened yet.'
+            );
+        }
+        return $this->_stream;
+    }
+
+    /**
+     * CAS_Client::serviceMail() needs to return the proxy ticket for some reason,
+     * so this method provides access to it.
+     *
+     * @return string
+     * @throws CAS_OutOfSequenceException If called before the stream has been
+     * opened.
+     */
+    public function getImapProxyTicket ()
+    {
+        if (!$this->hasBeenOpened()) {
+            throw new CAS_OutOfSequenceException(
+                'Cannot access errors, stream not opened yet.'
+            );
+        }
+        return $this->getProxyTicket();
+    }
+}
+?>

include/limesurvey/admin/classes/phpCAS/CAS/ProxiedService/Testable.php

@@ -0,0 +1,75 @@
+<?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 5
+ *
+ * @file     CAS/ProxiedService/Testabel.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
+ */
+
+/**
+ * This interface defines methods that allow proxy-authenticated service handlers
+ * to be tested in unit tests.
+ *
+ * Classes implementing this interface SHOULD store the CAS_Client passed and
+ * initialize themselves with that client rather than via the static phpCAS
+ * method. For example:
+ *
+ *		/ **
+ *		 * Fetch our proxy ticket.
+ *		 * /
+ *		protected function initializeProxyTicket() {
+ *			// Allow usage of a particular CAS_Client for unit testing.
+ *			if (is_null($this->casClient))
+ *				phpCAS::initializeProxiedService($this);
+ *			else
+ *				$this->casClient->initializeProxiedService($this);
+ *		}
+ *
+ * @class    CAS_ProxiedService_Testabel
+ * @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
+ */
+interface CAS_ProxiedService_Testable
+{
+
+    /**
+     * Use a particular CAS_Client->initializeProxiedService() rather than the
+     * static phpCAS::initializeProxiedService().
+     *
+     * This method should not be called in standard operation, but is needed for unit
+     * testing.
+     *
+     * @param CAS_Client $casClient Cas client object
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after a proxy ticket has
+     *         already been initialized/set.
+     */
+    public function setCasClient (CAS_Client $casClient);
+
+}
+?>

include/limesurvey/admin/classes/phpCAS/CAS/ProxyChain.php

@@ -0,0 +1,127 @@
+<?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 5
+ *
+ * @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));
+    }
+}

include/limesurvey/admin/classes/phpCAS/CAS/ProxyChain/AllowedList.php

@@ -0,0 +1,119 @@
+<?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 5
+ *
+ * @file     CAS/ProxyChain/AllowedList.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
+ */
+
+
+/**
+ * ProxyChain is a container for storing chains of valid proxies that can
+ * be used to validate proxied requests to a service
+ *
+ * @class    CAS_ProxyChain_AllowedList
+ * @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_AllowedList
+{
+
+    private $_chains = array();
+
+    /**
+     * Check whether proxies are allowed by configuration
+     *
+     * @return bool
+     */
+    public function isProxyingAllowed()
+    {
+        return (count($this->_chains) > 0);
+    }
+
+    /**
+     * Add a chain of proxies to the list of possible chains
+     *
+     * @param CAS_ProxyChain_Interface $chain A chain of proxies
+     *
+     * @return void
+     */
+    public function allowProxyChain(CAS_ProxyChain_Interface $chain)
+    {
+        $this->_chains[] = $chain;
+    }
+
+    /**
+     * Check if the proxies found in the response match the allowed proxies
+     *
+     * @param array $proxies list of proxies to check
+     *
+     * @return bool whether the proxies match the allowed proxies
+     */
+    public function isProxyListAllowed(array $proxies)
+    {
+        phpCAS::traceBegin();
+        if (empty($proxies)) {
+            phpCAS::trace("No proxies were found in the response");
+            phpCAS::traceEnd(true);
+            return true;
+        } elseif (!$this->isProxyingAllowed()) {
+            phpCAS::trace("Proxies are not allowed");
+            phpCAS::traceEnd(false);
+            return false;
+        } else {
+            $res = $this->contains($proxies);
+            phpCAS::traceEnd($res);
+            return $res;
+        }
+    }
+
+    /**
+     * Validate the proxies from the proxy ticket validation against the
+     * chains that were definded.
+     *
+     * @param array $list List of proxies from the proxy ticket validation.
+     *
+     * @return if any chain fully matches the supplied list
+     */
+    public function contains(array $list)
+    {
+        phpCAS::traceBegin();
+        $count = 0;
+        foreach ($this->_chains as $chain) {
+            phpCAS::trace("Checking chain ". $count++);
+            if ($chain->matches($list)) {
+                phpCAS::traceEnd(true);
+                return true;
+            }
+        }
+        phpCAS::trace("No proxy chain matches.");
+        phpCAS::traceEnd(false);
+        return false;
+    }
+}
+?>

include/limesurvey/admin/classes/phpCAS/CAS/ProxyChain/Any.php

@@ -0,0 +1,64 @@
+<?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 5
+ *
+ * @file     CAS/ProxyChain/Any.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 proxy-chain definition that will match any list of proxies.
+ *
+ * Use this class for quick testing or in certain production screnarios you
+ * might want to allow allow any other valid service to proxy your service.
+ *
+ * THIS CLASS IS HOWEVER NOT RECOMMENDED FOR PRODUCTION AND HAS SECURITY
+ * IMPLICATIONS: YOU ARE ALLOWING ANY SERVICE TO ACT ON BEHALF OF A USER
+ * ON THIS SERVICE.
+ *
+ * @class    CAS_ProxyChain_Any
+ * @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_Any
+implements CAS_ProxyChain_Interface
+{
+
+    /**
+     * Match a list of proxies.
+     *
+     * @param array $list The list of proxies in front of this service.
+     *
+     * @return bool
+     */
+    public function matches(array $list)
+    {
+        phpCAS::trace("Using CAS_ProxyChain_Any. No proxy validation is performed.");
+        return true;
+    }
+
+}

include/limesurvey/admin/classes/phpCAS/CAS/ProxyChain/Interface.php

@@ -0,0 +1,53 @@
+<?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 5
+ *
+ * @file     CAS/ProxyChain/Interface.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
+ */
+
+/**
+ * An interface for classes that define a list of allowed proxies in front of
+ * the current application.
+ *
+ * @class    CAS_ProxyChain_Interface
+ * @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
+ */
+interface CAS_ProxyChain_Interface
+{
+
+    /**
+     * Match a list of proxies.
+     *
+     * @param array $list The list of proxies in front of this service.
+     *
+     * @return bool
+     */
+    public function matches(array $list);
+
+}

include/limesurvey/admin/classes/phpCAS/CAS/ProxyChain/Trusted.php

@@ -0,0 +1,59 @@
+<?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 5
+ *
+ * @file     CAS/ProxyChain/Trusted.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 proxy-chain definition that defines a chain up to a trusted proxy and
+ * delegates the resposibility of validating the rest of the chain to that
+ * trusted proxy.
+ *
+ * @class    CAS_ProxyChain_Trusted
+ * @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_Trusted
+extends CAS_ProxyChain
+implements CAS_ProxyChain_Interface
+{
+
+    /**
+     * 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));
+    }
+
+}

include/limesurvey/admin/classes/phpCAS/CAS/ProxyTicketException.php

@@ -0,0 +1,71 @@
+<?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 5
+ *
+ * @class    CAS/ProxyTicketException.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
+ *
+ */
+
+/**
+ * An Exception for errors related to fetching or validating proxy tickets.
+ *
+ * @class    CAS_ProxyTicketException
+ * @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_ProxyTicketException
+extends BadMethodCallException
+implements CAS_Exception
+{
+
+    /**
+     * Constructor
+     *
+     * @param string $message Message text
+     * @param int    $code    Error code
+     *
+     * @return void
+     */
+    public function __construct ($message, $code = PHPCAS_SERVICE_PT_FAILURE)
+    {
+        // Warn if the code is not in our allowed list
+        $ptCodes = array(
+        PHPCAS_SERVICE_PT_FAILURE,
+        PHPCAS_SERVICE_PT_NO_SERVER_RESPONSE,
+        PHPCAS_SERVICE_PT_BAD_SERVER_RESPONSE,
+        );
+        if (!in_array($code, $ptCodes)) {
+            trigger_error(
+                'Invalid code '.$code
+                .' passed. Must be one of PHPCAS_SERVICE_PT_FAILURE, PHPCAS_SERVICE_PT_NO_SERVER_RESPONSE, or PHPCAS_SERVICE_PT_BAD_SERVER_RESPONSE.'
+            );
+        }
+
+        parent::__construct($message, $code);
+    }
+}

include/limesurvey/admin/classes/phpCAS/CAS/Request/AbstractRequest.php

@@ -0,0 +1,379 @@
+<?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 5
+ *
+ * @file     CAS/Request/AbstractRequest.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
+ */
+
+/**
+ * Provides support for performing web-requests via curl
+ *
+ * @class    CAS_Request_AbstractRequest
+ * @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
+ */
+abstract class CAS_Request_AbstractRequest
+implements CAS_Request_RequestInterface
+{
+
+    protected $url = null;
+    protected $cookies = array();
+    protected $headers = array();
+    protected $isPost = false;
+    protected $postBody = null;
+    protected $caCertPath = null;
+    protected $validateCN = true;
+    private $_sent = false;
+    private $_responseHeaders = array();
+    private $_responseBody = null;
+    private $_errorMessage = '';
+
+    /*********************************************************
+     * Configure the Request
+    *********************************************************/
+
+    /**
+     * Set the URL of the Request
+     *
+     * @param string $url Url to set
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the Request has been sent.
+     */
+    public function setUrl ($url)
+    {
+        if ($this->_sent) {
+            throw new CAS_OutOfSequenceException(
+                'Request has already been sent cannot '.__METHOD__
+            );
+        }
+
+        $this->url = $url;
+    }
+
+    /**
+     * Add a cookie to the request.
+     *
+     * @param string $name  Name of entry
+     * @param string $value value of entry
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the Request has been sent.
+     */
+    public function addCookie ($name, $value)
+    {
+        if ($this->_sent) {
+            throw new CAS_OutOfSequenceException(
+                'Request has already been sent cannot '.__METHOD__
+            );
+        }
+
+        $this->cookies[$name] = $value;
+    }
+
+    /**
+     * Add an array of cookies to the request.
+     * The cookie array is of the form
+     *     array('cookie_name' => 'cookie_value', 'cookie_name2' => cookie_value2')
+     *
+     * @param array $cookies cookies to add
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the Request has been sent.
+     */
+    public function addCookies (array $cookies)
+    {
+        if ($this->_sent) {
+            throw new CAS_OutOfSequenceException(
+                'Request has already been sent cannot '.__METHOD__
+            );
+        }
+
+        $this->cookies = array_merge($this->cookies, $cookies);
+    }
+
+    /**
+     * Add a header string to the request.
+     *
+     * @param string $header Header to add
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the Request has been sent.
+     */
+    public function addHeader ($header)
+    {
+        if ($this->_sent) {
+            throw new CAS_OutOfSequenceException(
+                'Request has already been sent cannot '.__METHOD__
+            );
+        }
+
+        $this->headers[] = $header;
+    }
+
+    /**
+     * Add an array of header strings to the request.
+     *
+     * @param array $headers headers to add
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the Request has been sent.
+     */
+    public function addHeaders (array $headers)
+    {
+        if ($this->_sent) {
+            throw new CAS_OutOfSequenceException(
+                'Request has already been sent cannot '.__METHOD__
+            );
+        }
+
+        $this->headers = array_merge($this->headers, $headers);
+    }
+
+    /**
+     * Make the request a POST request rather than the default GET request.
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the Request has been sent.
+     */
+    public function makePost ()
+    {
+        if ($this->_sent) {
+            throw new CAS_OutOfSequenceException(
+                'Request has already been sent cannot '.__METHOD__
+            );
+        }
+
+        $this->isPost = true;
+    }
+
+    /**
+     * Add a POST body to the request
+     *
+     * @param string $body body to add
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the Request has been sent.
+     */
+    public function setPostBody ($body)
+    {
+        if ($this->_sent) {
+            throw new CAS_OutOfSequenceException(
+                'Request has already been sent cannot '.__METHOD__
+            );
+        }
+        if (!$this->isPost) {
+            throw new CAS_OutOfSequenceException(
+                'Cannot add a POST body to a GET request, use makePost() first.'
+            );
+        }
+
+        $this->postBody = $body;
+    }
+
+    /**
+     * Specify the path to an SSL CA certificate to validate the server with.
+     *
+     * @param string $caCertPath  path to cert
+     * @param bool   $validate_cn valdiate CN of certificate
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the Request has been sent.
+     */
+    public function setSslCaCert ($caCertPath,$validate_cn=true)
+    {
+        if ($this->_sent) {
+            throw new CAS_OutOfSequenceException(
+                'Request has already been sent cannot '.__METHOD__
+            );
+        }
+        $this->caCertPath = $caCertPath;
+        $this->validateCN = $validate_cn;
+    }
+
+    /*********************************************************
+     * 2. Send the Request
+    *********************************************************/
+
+    /**
+     * Perform the request.
+     *
+     * @return bool TRUE on success, FALSE on failure.
+     * @throws CAS_OutOfSequenceException If called multiple times.
+     */
+    public function send ()
+    {
+        if ($this->_sent) {
+            throw new CAS_OutOfSequenceException(
+                'Request has already been sent cannot send again.'
+            );
+        }
+        if (is_null($this->url) || !$this->url) {
+            throw new CAS_OutOfSequenceException(
+                'A url must be specified via setUrl() before the request can be sent.'
+            );
+        }
+        $this->_sent = true;
+        return $this->sendRequest();
+    }
+
+    /**
+     * Send the request and store the results.
+     *
+     * @return bool TRUE on success, FALSE on failure.
+     */
+    abstract protected function sendRequest ();
+
+    /**
+     * Store the response headers.
+     *
+     * @param array $headers headers to store
+     *
+     * @return void
+     */
+    protected function storeResponseHeaders (array $headers)
+    {
+        $this->_responseHeaders = array_merge($this->_responseHeaders, $headers);
+    }
+
+    /**
+     * Store a single response header to our array.
+     *
+     * @param string $header header to store
+     *
+     * @return void
+     */
+    protected function storeResponseHeader ($header)
+    {
+        $this->_responseHeaders[] = $header;
+    }
+
+    /**
+     * Store the response body.
+     *
+     * @param string $body body to store
+     *
+     * @return void
+     */
+    protected function storeResponseBody ($body)
+    {
+        $this->_responseBody = $body;
+    }
+
+    /**
+     * Add a string to our error message.
+     *
+     * @param string $message message to add
+     *
+     * @return void
+     */
+    protected function storeErrorMessage ($message)
+    {
+        $this->_errorMessage .= $message;
+    }
+
+    /*********************************************************
+     * 3. Access the response
+    *********************************************************/
+
+    /**
+     * Answer the headers of the response.
+     *
+     * @return array An array of header strings.
+     * @throws CAS_OutOfSequenceException If called before the Request has been sent.
+     */
+    public function getResponseHeaders ()
+    {
+        if (!$this->_sent) {
+            throw new CAS_OutOfSequenceException(
+                'Request has not been sent yet. Cannot '.__METHOD__
+            );
+        }
+        return $this->_responseHeaders;
+    }
+
+    /**
+     * Answer HTTP status code of the response
+     *
+     * @return int
+     * @throws CAS_OutOfSequenceException If called before the Request has been sent.
+     */
+    public function getResponseStatusCode ()
+    {
+        if (!$this->_sent) {
+            throw new CAS_OutOfSequenceException(
+                'Request has not been sent yet. Cannot '.__METHOD__
+            );
+        }
+
+        if (!preg_match(
+            '/HTTP\/[0-9.]+\s+([0-9]+)\s*(.*)/',
+            $this->_responseHeaders[0], $matches
+        )
+        ) {
+            throw new CAS_Request_Exception(
+                'Bad response, no status code was found in the first line.'
+            );
+        }
+
+        return intval($matches[1]);
+    }
+
+    /**
+     * Answer the body of response.
+     *
+     * @return string
+     * @throws CAS_OutOfSequenceException If called before the Request has been sent.
+     */
+    public function getResponseBody ()
+    {
+        if (!$this->_sent) {
+            throw new CAS_OutOfSequenceException(
+                'Request has not been sent yet. Cannot '.__METHOD__
+            );
+        }
+
+        return $this->_responseBody;
+    }
+
+    /**
+     * Answer a message describing any errors if the request failed.
+     *
+     * @return string
+     * @throws CAS_OutOfSequenceException If called before the Request has been sent.
+     */
+    public function getErrorMessage ()
+    {
+        if (!$this->_sent) {
+            throw new CAS_OutOfSequenceException(
+                'Request has not been sent yet. Cannot '.__METHOD__
+            );
+        }
+        return $this->_errorMessage;
+    }
+}

include/limesurvey/admin/classes/phpCAS/CAS/Request/CurlMultiRequest.php

@@ -0,0 +1,146 @@
+<?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 5
+ *
+ * @file     CAS/Request/AbstractRequest.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
+ */
+
+/**
+ * This interface defines a class library for performing multiple web requests
+ * in batches. Implementations of this interface may perform requests serially
+ * or in parallel.
+ *
+ * @class    CAS_Request_CurlMultiRequest
+ * @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_Request_CurlMultiRequest
+implements CAS_Request_MultiRequestInterface
+{
+    private $_requests = array();
+    private $_sent = false;
+
+    /*********************************************************
+     * Add Requests
+    *********************************************************/
+
+    /**
+     * Add a new Request to this batch.
+     * Note, implementations will likely restrict requests to their own concrete
+     * class hierarchy.
+     *
+     * @param CAS_Request_RequestInterface $request reqest to add
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the Request has been sent.
+     * @throws CAS_InvalidArgumentException If passed a Request of the wrong
+     * implmentation.
+     */
+    public function addRequest (CAS_Request_RequestInterface $request)
+    {
+        if ($this->_sent) {
+            throw new CAS_OutOfSequenceException(
+                'Request has already been sent cannot '.__METHOD__
+            );
+        }
+        if (!$request instanceof CAS_Request_CurlRequest) {
+            throw new CAS_InvalidArgumentException(
+                'As a CAS_Request_CurlMultiRequest, I can only work with CAS_Request_CurlRequest objects.'
+            );
+        }
+
+        $this->_requests[] = $request;
+    }
+
+    /**
+     * Retrieve the number of requests added to this batch.
+     *
+     * @return number of request elements
+     */
+    public function getNumRequests()
+    {
+        if ($this->_sent) {
+            throw new CAS_OutOfSequenceException(
+                'Request has already been sent cannot '.__METHOD__
+            );
+        }
+        return count($this->_requests);
+    }
+
+    /*********************************************************
+     * 2. Send the Request
+    *********************************************************/
+
+    /**
+     * Perform the request. After sending, all requests will have their
+     * responses poulated.
+     *
+     * @return bool TRUE on success, FALSE on failure.
+     * @throws CAS_OutOfSequenceException If called multiple times.
+     */
+    public function send ()
+    {
+        if ($this->_sent) {
+            throw new CAS_OutOfSequenceException(
+                'Request has already been sent cannot send again.'
+            );
+        }
+        if (!count($this->_requests)) {
+            throw new CAS_OutOfSequenceException(
+                'At least one request must be added via addRequest() before the multi-request can be sent.'
+            );
+        }
+
+        $this->_sent = true;
+
+        // Initialize our handles and configure all requests.
+        $handles = array();
+        $multiHandle = curl_multi_init();
+        foreach ($this->_requests as $i => $request) {
+            $handle = $request->_initAndConfigure();
+            curl_setopt($handle, CURLOPT_RETURNTRANSFER, true);
+            $handles[$i] = $handle;
+            curl_multi_add_handle($multiHandle, $handle);
+        }
+
+        // Execute the requests in parallel.
+        do {
+            curl_multi_exec($multiHandle, $running);
+        } while ($running > 0);
+
+        // Populate all of the responses or errors back into the request objects.
+        foreach ($this->_requests as $i => $request) {
+            $buf = curl_multi_getcontent($handles[$i]);
+            $request->_storeResponseBody($buf);
+            curl_multi_remove_handle($multiHandle, $handles[$i]);
+            curl_close($handles[$i]);
+        }
+
+        curl_multi_close($multiHandle);
+    }
+}

include/limesurvey/admin/classes/phpCAS/CAS/Request/CurlRequest.php

@@ -0,0 +1,200 @@
+<?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 5
+ *
+ * @file     CAS/Request/CurlRequest.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
+ */
+
+/**
+ * Provides support for performing web-requests via curl
+ *
+ * @class    CAS_Request_CurlRequest
+ * @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_Request_CurlRequest
+extends CAS_Request_AbstractRequest
+implements CAS_Request_RequestInterface
+{
+
+    /**
+     * Set additional curl options
+     *
+     * @param array $options option to set
+     *
+     * @return void
+     */
+    public function setCurlOptions (array $options)
+    {
+        $this->_curlOptions = $options;
+    }
+    private $_curlOptions = array();
+
+    /**
+     * Send the request and store the results.
+     *
+     * @return bool true on success, false on failure.
+     */
+    protected function sendRequest ()
+    {
+        phpCAS::traceBegin();
+
+        /*********************************************************
+         * initialize the CURL session
+        *********************************************************/
+        $ch = $this->_initAndConfigure();
+
+        /*********************************************************
+         * Perform the query
+        *********************************************************/
+        $buf = curl_exec($ch);
+        if ( $buf === false ) {
+            phpCAS::trace('curl_exec() failed');
+            $this->storeErrorMessage(
+                'CURL error #'.curl_errno($ch).': '.curl_error($ch)
+            );
+            $res = false;
+        } else {
+            $this->storeResponseBody($buf);
+            phpCAS::trace("Response Body: \n".$buf."\n");
+            $res = true;
+
+        }
+        // close the CURL session
+        curl_close($ch);
+
+        phpCAS::traceEnd($res);
+        return $res;
+    }
+
+    /**
+     * Internal method to initialize our cURL handle and configure the request.
+     * This method should NOT be used outside of the CurlRequest or the
+     * CurlMultiRequest.
+     *
+     * @return resource The cURL handle on success, false on failure
+     */
+    private function _initAndConfigure()
+    {
+        /*********************************************************
+         * initialize the CURL session
+        *********************************************************/
+        $ch = curl_init($this->url);
+
+        if (version_compare(PHP_VERSION, '5.1.3', '>=')) {
+            //only avaible in php5
+            curl_setopt_array($ch, $this->_curlOptions);
+        } else {
+            foreach ($this->_curlOptions as $key => $value) {
+                curl_setopt($ch, $key, $value);
+            }
+        }
+
+        /*********************************************************
+         * Set SSL configuration
+        *********************************************************/
+        if ($this->caCertPath) {
+            if ($this->validateCN) {
+                curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
+            } else {
+                curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
+            }
+            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1);
+            curl_setopt($ch, CURLOPT_CAINFO, $this->caCertPath);
+            phpCAS::trace('CURL: Set CURLOPT_CAINFO ' . $this->caCertPath);
+        } else {
+            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
+            curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
+        }
+
+        /*********************************************************
+         * Configure curl to capture our output.
+        *********************************************************/
+        // return the CURL output into a variable
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
+
+        // get the HTTP header with a callback
+        curl_setopt($ch, CURLOPT_HEADERFUNCTION, array($this, '_curlReadHeaders'));
+
+        /*********************************************************
+         * Add cookie headers to our request.
+        *********************************************************/
+        if (count($this->cookies)) {
+            $cookieStrings = array();
+            foreach ($this->cookies as $name => $val) {
+                $cookieStrings[] = $name.'='.$val;
+            }
+            curl_setopt($ch, CURLOPT_COOKIE, implode(';', $cookieStrings));
+        }
+
+        /*********************************************************
+         * Add any additional headers
+        *********************************************************/
+        if (count($this->headers)) {
+            curl_setopt($ch, CURLOPT_HTTPHEADER, $this->headers);
+        }
+
+        /*********************************************************
+         * Flag and Body for POST requests
+        *********************************************************/
+        if ($this->isPost) {
+            curl_setopt($ch, CURLOPT_POST, 1);
+            curl_setopt($ch, CURLOPT_POSTFIELDS, $this->postBody);
+        }
+
+        return $ch;
+    }
+
+    /**
+     * Store the response body.
+     * This method should NOT be used outside of the CurlRequest or the
+     * CurlMultiRequest.
+     *
+     * @param string $body body to stor
+     *
+     * @return void
+     */
+    private function _storeResponseBody ($body)
+    {
+        $this->storeResponseBody($body);
+    }
+
+    /**
+     * Internal method for capturing the headers from a curl request.
+     *
+     * @param handle $ch     handle of curl
+     * @param string $header header
+     *
+     * @return void
+     */
+    private function _curlReadHeaders ($ch, $header)
+    {
+        $this->storeResponseHeader($header);
+        return strlen($header);
+    }
+}

include/limesurvey/admin/classes/phpCAS/CAS/Request/Exception.php

@@ -0,0 +1,45 @@
+<?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 5
+ *
+ * @file     CAS/Request/Exception.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
+ */
+
+/**
+ * An Exception for problems performing requests
+ *
+ * @class    CAS_Request_Exception
+ * @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_Request_Exception
+extends Exception
+implements CAS_Exception
+{
+
+}

include/limesurvey/admin/classes/phpCAS/CAS/Request/MultiRequestInterface.php

@@ -0,0 +1,83 @@
+<?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 5
+ *
+ * @file     CAS/Request/MultiRequestInterface.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
+ */
+
+/**
+ * This interface defines a class library for performing multiple web requests
+ * in batches. Implementations of this interface may perform requests serially
+ * or in parallel.
+ *
+ * @class    CAS_Request_MultiRequestInterface
+ * @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
+ */
+interface CAS_Request_MultiRequestInterface
+{
+
+    /*********************************************************
+     * Add Requests
+    *********************************************************/
+
+    /**
+     * Add a new Request to this batch.
+     * Note, implementations will likely restrict requests to their own concrete
+     * class hierarchy.
+     *
+     * @param CAS_Request_RequestInterface $request request interface
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the Request has been
+     * sent.
+     * @throws CAS_InvalidArgumentException If passed a Request of the wrong
+     * implmentation.
+     */
+    public function addRequest (CAS_Request_RequestInterface $request);
+
+    /**
+     * Retrieve the number of requests added to this batch.
+     *
+     * @return number of request elements
+     */
+    public function getNumRequests ();
+
+    /*********************************************************
+     * 2. Send the Request
+    *********************************************************/
+
+    /**
+     * Perform the request. After sending, all requests will have their
+     * responses poulated.
+     *
+     * @return bool TRUE on success, FALSE on failure.
+     * @throws CAS_OutOfSequenceException If called multiple times.
+     */
+    public function send ();
+}

include/limesurvey/admin/classes/phpCAS/CAS/Request/RequestInterface.php

@@ -0,0 +1,179 @@
+<?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 5
+ *
+ * @file     CAS/Request/RequestInterface.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
+ */
+
+/**
+ * This interface defines a class library for performing web requests.
+ *
+ * @class    CAS_Request_RequestInterface
+ * @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
+ */
+interface CAS_Request_RequestInterface
+{
+
+    /*********************************************************
+     * Configure the Request
+    *********************************************************/
+
+    /**
+     * Set the URL of the Request
+     *
+     * @param string $url url to set
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the Request has been sent.
+     */
+    public function setUrl ($url);
+
+    /**
+     * Add a cookie to the request.
+     *
+     * @param string $name  name of cookie
+     * @param string $value value of cookie
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the Request has been sent.
+     */
+    public function addCookie ($name, $value);
+
+    /**
+     * Add an array of cookies to the request.
+     * The cookie array is of the form
+     *     array('cookie_name' => 'cookie_value', 'cookie_name2' => cookie_value2')
+     *
+     * @param array $cookies cookies to add
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the Request has been sent.
+     */
+    public function addCookies (array $cookies);
+
+    /**
+     * Add a header string to the request.
+     *
+     * @param string $header header to add
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the Request has been sent.
+     */
+    public function addHeader ($header);
+
+    /**
+     * Add an array of header strings to the request.
+     *
+     * @param array $headers headers to add
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the Request has been sent.
+     */
+    public function addHeaders (array $headers);
+
+    /**
+     * Make the request a POST request rather than the default GET request.
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the Request has been sent.
+     */
+    public function makePost ();
+
+    /**
+     * Add a POST body to the request
+     *
+     * @param string $body body to add
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the Request has been sent.
+     */
+    public function setPostBody ($body);
+
+
+    /**
+     * Specify the path to an SSL CA certificate to validate the server with.
+     *
+     * @param string  $caCertPath  path to cert file
+     * @param boolean $validate_cn validate CN of SSL certificate
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the Request has been sent.
+     */
+    public function setSslCaCert ($caCertPath, $validate_cn = true);
+
+
+
+    /*********************************************************
+     * 2. Send the Request
+    *********************************************************/
+
+    /**
+     * Perform the request.
+     *
+     * @return bool TRUE on success, FALSE on failure.
+     * @throws CAS_OutOfSequenceException If called multiple times.
+     */
+    public function send ();
+
+    /*********************************************************
+     * 3. Access the response
+    *********************************************************/
+
+    /**
+     * Answer the headers of the response.
+     *
+     * @return array An array of header strings.
+     * @throws CAS_OutOfSequenceException If called before the Request has been sent.
+     */
+    public function getResponseHeaders ();
+
+    /**
+     * Answer HTTP status code of the response
+     *
+     * @return int
+     * @throws CAS_OutOfSequenceException If called before the Request has been sent.
+     */
+    public function getResponseStatusCode ();
+
+    /**
+     * Answer the body of response.
+     *
+     * @return string
+     * @throws CAS_OutOfSequenceException If called before the Request has been sent.
+     */
+    public function getResponseBody ();
+
+    /**
+     * Answer a message describing any errors if the request failed.
+     *
+     * @return string
+     * @throws CAS_OutOfSequenceException If called before the Request has been sent.
+     */
+    public function getErrorMessage ();
+}

include/limesurvey/admin/classes/phpCAS/CAS/TypeMismatchException.php

@@ -0,0 +1,70 @@
+<?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 5
+ *
+ * @file     CAS/InvalidArgumentException.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
+ */
+
+/**
+ * Exception that denotes invalid arguments were passed.
+ *
+ * @class    CAS_InvalidArgumentException
+ * @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_TypeMismatchException
+extends CAS_InvalidArgumentException
+{
+    /**
+     * Constructor, provides a nice message.
+     *
+     * @param mixed   $argument     Argument
+     * @param string  $argumentName Argument Name
+     * @param string  $type         Type
+     * @param string  $message      Error Message
+     * @param integer $code         Code
+     *
+     * @return void
+     */
+    public function __construct (
+        $argument, $argumentName, $type, $message = '', $code = 0
+    ) {
+        if (is_object($argument)) {
+            $foundType = get_class($argument).' object';
+        } else {
+            $foundType = gettype($argument);
+        }
+
+        parent::__construct(
+            'type mismatched for parameter '
+            . $argumentName . ' (should be \'' . $type .' \'), '
+            . $foundType . ' given. ' . $message, $code
+        );
+    }
+}
+?>

include/limesurvey/admin/classes/phpCAS/CAS/domxml-php4-php5.php

@@ -1,277 +0,0 @@
-<?php
-/**
- * @file domxml-php4-php5.php
- * Require PHP5, uses built-in DOM extension.
- * To be used in PHP4 scripts using DOMXML extension.
- * Allows PHP4/DOMXML scripts to run on PHP5/DOM.
- * (Requires PHP5/XSL extension for domxml_xslt functions)
- *
- * Typical use:
- * <pre>
- * {
- *  if (version_compare(PHP_VERSION,'5','>='))
- *   require_once('domxml-php4-to-php5.php');
- * }
- * </pre>
- *
- * Version 1.5.5, 2005-01-18, http://alexandre.alapetite.net/doc-alex/domxml-php4-php5/
- *
- * ------------------------------------------------------------------<br>
- * Written by Alexandre Alapetite, http://alexandre.alapetite.net/cv/
- *
- * Copyright 2004, Licence: Creative Commons "Attribution-ShareAlike 2.0 France" BY-SA (FR),
- * http://creativecommons.org/licenses/by-sa/2.0/fr/
- * http://alexandre.alapetite.net/divers/apropos/#by-sa
- * - Attribution. You must give the original author credit
- * - Share Alike. If you alter, transform, or build upon this work,
- *   you may distribute the resulting work only under a license identical to this one
- * - The French law is authoritative
- * - Any of these conditions can be waived if you get permission from Alexandre Alapetite
- * - Please send to Alexandre Alapetite the modifications you make,
- *   in order to improve this file for the benefit of everybody
- *
- * If you want to distribute this code, please do it as a link to:
- * http://alexandre.alapetite.net/doc-alex/domxml-php4-php5/
- */
-
-function domxml_new_doc($version) {return new php4DOMDocument('');}
-function domxml_open_file($filename) {return new php4DOMDocument($filename);}
-function domxml_open_mem($str)
-{
-    $dom=new php4DOMDocument('');
-    $dom->myDOMNode->loadXML($str);
-    return $dom;
-}
-function xpath_eval($xpath_context,$eval_str,$contextnode=null) {return $xpath_context->query($eval_str,$contextnode);}
-function xpath_new_context($dom_document) {return new php4DOMXPath($dom_document);}
-
-class php4DOMAttr extends php4DOMNode
-{
-    function php4DOMAttr($aDOMAttr) {$this->myDOMNode=$aDOMAttr;}
-    function Name() {return $this->myDOMNode->name;}
-    function Specified() {return $this->myDOMNode->specified;}
-    function Value() {return $this->myDOMNode->value;}
-}
-
-class php4DOMDocument extends php4DOMNode
-{
-    function php4DOMDocument($filename='')
-    {
-        $this->myDOMNode=new DOMDocument();
-        if ($filename!='') $this->myDOMNode->load($filename);
-    }
-    function create_attribute($name,$value)
-    {
-        $myAttr=$this->myDOMNode->createAttribute($name);
-        $myAttr->value=$value;
-        return new php4DOMAttr($myAttr,$this);
-    }
-    function create_cdata_section($content) {return new php4DOMNode($this->myDOMNode->createCDATASection($content),$this);}
-    function create_comment($data) {return new php4DOMNode($this->myDOMNode->createComment($data),$this);}
-    function create_element($name) {return new php4DOMElement($this->myDOMNode->createElement($name),$this);}
-    function create_text_node($content) {return new php4DOMNode($this->myDOMNode->createTextNode($content),$this);}
-    function document_element() {return new php4DOMElement($this->myDOMNode->documentElement,$this);}
-    function dump_file($filename,$compressionmode=false,$format=false) {return $this->myDOMNode->save($filename);}
-    function dump_mem($format=false,$encoding=false) {return $this->myDOMNode->saveXML();}
-    function get_element_by_id($id) {return new php4DOMElement($this->myDOMNode->getElementById($id),$this);}
-    function get_elements_by_tagname($name)
-    {
-        $myDOMNodeList=$this->myDOMNode->getElementsByTagName($name);
-        $nodeSet=array();
-        $i=0;
-        if (isset($myDOMNodeList))
-        while ($node=$myDOMNodeList->item($i))
-        {
-            $nodeSet[]=new php4DOMElement($node,$this);
-            $i++;
-        }
-        return $nodeSet;
-    }
-    function html_dump_mem() {return $this->myDOMNode->saveHTML();}
-    function root() {return new php4DOMElement($this->myDOMNode->documentElement,$this);}
-}
-
-class php4DOMElement extends php4DOMNode
-{
-    function get_attribute($name) {return $this->myDOMNode->getAttribute($name);}
-    function get_elements_by_tagname($name)
-    {
-        $myDOMNodeList=$this->myDOMNode->getElementsByTagName($name);
-        $nodeSet=array();
-        $i=0;
-        if (isset($myDOMNodeList))
-        while ($node=$myDOMNodeList->item($i))
-        {
-            $nodeSet[]=new php4DOMElement($node,$this->myOwnerDocument);
-            $i++;
-        }
-        return $nodeSet;
-    }
-    function has_attribute($name) {return $this->myDOMNode->hasAttribute($name);}
-    function remove_attribute($name) {return $this->myDOMNode->removeAttribute($name);}
-    function set_attribute($name,$value) {return $this->myDOMNode->setAttribute($name,$value);}
-    function tagname() {return $this->myDOMNode->tagName;}
-}
-
-class php4DOMNode
-{
-    var $myDOMNode;
-    var $myOwnerDocument;
-    function php4DOMNode($aDomNode,$aOwnerDocument)
-    {
-        $this->myDOMNode=$aDomNode;
-        $this->myOwnerDocument=$aOwnerDocument;
-    }
-    function __get($name)
-    {
-        if ($name=='type') return $this->myDOMNode->nodeType;
-        elseif ($name=='tagname') return $this->myDOMNode->tagName;
-        elseif ($name=='content') return $this->myDOMNode->textContent;
-        else
-        {
-            $myErrors=debug_backtrace();
-            trigger_error('Undefined property: '.get_class($this).'::$'.$name.' ['.$myErrors[0]['file'].':'.$myErrors[0]['line'].']',E_USER_NOTICE);
-            return false;
-        }
-    }
-    function append_child($newnode) {return new php4DOMElement($this->myDOMNode->appendChild($newnode->myDOMNode),$this->myOwnerDocument);}
-    function append_sibling($newnode) {return new php4DOMElement($this->myDOMNode->parentNode->appendChild($newnode->myDOMNode),$this->myOwnerDocument);}
-    function attributes()
-    {
-        $myDOMNodeList=$this->myDOMNode->attributes;
-        $nodeSet=array();
-        $i=0;
-        if (isset($myDOMNodeList))
-        while ($node=$myDOMNodeList->item($i))
-        {
-            $nodeSet[]=new php4DOMAttr($node,$this->myOwnerDocument);
-            $i++;
-        }
-        return $nodeSet;
-    }
-    function child_nodes()
-    {
-        $myDOMNodeList=$this->myDOMNode->childNodes;
-        $nodeSet=array();
-        $i=0;
-        if (isset($myDOMNodeList))
-        while ($node=$myDOMNodeList->item($i))
-        {
-            $nodeSet[]=new php4DOMElement($node,$this->myOwnerDocument);
-            $i++;
-        }
-        return $nodeSet;
-    }
-    function children() {return $this->child_nodes();}
-    function clone_node($deep=false) {return new php4DOMElement($this->myDOMNode->cloneNode($deep),$this->myOwnerDocument);}
-    function first_child() {return new php4DOMElement($this->myDOMNode->firstChild,$this->myOwnerDocument);}
-    function get_content() {return $this->myDOMNode->textContent;}
-    function has_attributes() {return $this->myDOMNode->hasAttributes();}
-    function has_child_nodes() {return $this->myDOMNode->hasChildNodes();}
-    function insert_before($newnode,$refnode) {return new php4DOMElement($this->myDOMNode->insertBefore($newnode->myDOMNode,$refnode->myDOMNode),$this->myOwnerDocument);}
-    function is_blank_node()
-    {
-        $myDOMNodeList=$this->myDOMNode->childNodes;
-        $i=0;
-        if (isset($myDOMNodeList))
-        while ($node=$myDOMNodeList->item($i))
-        {
-            if (($node->nodeType==XML_ELEMENT_NODE)||
-            (($node->nodeType==XML_TEXT_NODE)&&!preg_match('/^([[:cntrl:]]|[[:space:]])*$/',$node->nodeValue)))
-            return false;
-            $i++;
-        }
-        return true;
-    }
-    function last_child() {return new php4DOMElement($this->myDOMNode->lastChild,$this->myOwnerDocument);}
-    function new_child($name,$content)
-    {
-        $mySubNode=$this->myDOMNode->ownerDocument->createElement($name);
-        $mySubNode->appendChild($this->myDOMNode->ownerDocument->createTextNode($content));
-        $this->myDOMNode->appendChild($mySubNode);
-        return new php4DOMElement($mySubNode,$this->myOwnerDocument);
-    }
-    function next_sibling() {return new php4DOMElement($this->myDOMNode->nextSibling,$this->myOwnerDocument);}
-    function node_name() {return $this->myDOMNode->localName;}
-    function node_type() {return $this->myDOMNode->nodeType;}
-    function node_value() {return $this->myDOMNode->nodeValue;}
-    function owner_document() {return $this->myOwnerDocument;}
-    function parent_node() {return new php4DOMElement($this->myDOMNode->parentNode,$this->myOwnerDocument);}
-    function prefix() {return $this->myDOMNode->prefix;}
-    function previous_sibling() {return new php4DOMElement($this->myDOMNode->previousSibling,$this->myOwnerDocument);}
-    function remove_child($oldchild) {return new php4DOMElement($this->myDOMNode->removeChild($oldchild->myDOMNode),$this->myOwnerDocument);}
-    function replace_child($oldnode,$newnode) {return new php4DOMElement($this->myDOMNode->replaceChild($oldnode->myDOMNode,$newnode->myDOMNode),$this->myOwnerDocument);}
-    function set_content($text)
-    {
-        if (($this->myDOMNode->hasChildNodes())&&($this->myDOMNode->firstChild->nodeType==XML_TEXT_NODE))
-        $this->myDOMNode->removeChild($this->myDOMNode->firstChild);
-        return $this->myDOMNode->appendChild($this->myDOMNode->ownerDocument->createTextNode($text));
-    }
-}
-
-class php4DOMNodelist
-{
-    var $myDOMNodelist;
-    var $nodeset;
-    function php4DOMNodelist($aDOMNodelist,$aOwnerDocument)
-    {
-        $this->myDOMNodelist=$aDOMNodelist;
-        $this->nodeset=array();
-        $i=0;
-        if (isset($this->myDOMNodelist))
-        while ($node=$this->myDOMNodelist->item($i))
-        {
-            $this->nodeset[]=new php4DOMElement($node,$aOwnerDocument);
-            $i++;
-        }
-    }
-}
-
-class php4DOMXPath
-{
-    var $myDOMXPath;
-    var $myOwnerDocument;
-    function php4DOMXPath($dom_document)
-    {
-        $this->myOwnerDocument=$dom_document;
-        $this->myDOMXPath=new DOMXPath($dom_document->myDOMNode);
-    }
-    function query($eval_str,$contextnode)
-    {
-        if (isset($contextnode)) return new php4DOMNodelist($this->myDOMXPath->query($eval_str,$contextnode->myDOMNode),$this->myOwnerDocument);
-        else return new php4DOMNodelist($this->myDOMXPath->query($eval_str),$this->myOwnerDocument);
-    }
-    function xpath_register_ns($prefix,$namespaceURI) {return $this->myDOMXPath->registerNamespace($prefix,$namespaceURI);}
-}
-
-if (extension_loaded('xsl'))
-{//See also: http://alexandre.alapetite.net/doc-alex/xslt-php4-php5/
-function domxml_xslt_stylesheet($xslstring) {return new php4DomXsltStylesheet(DOMDocument::loadXML($xslstring));}
-function domxml_xslt_stylesheet_doc($dom_document) {return new php4DomXsltStylesheet($dom_document);}
-function domxml_xslt_stylesheet_file($xslfile) {return new php4DomXsltStylesheet(DOMDocument::load($xslfile));}
-class php4DomXsltStylesheet
-{
-    var $myxsltProcessor;
-    function php4DomXsltStylesheet($dom_document)
-    {
-        $this->myxsltProcessor=new xsltProcessor();
-        $this->myxsltProcessor->importStyleSheet($dom_document);
-    }
-    function process($dom_document,$xslt_parameters=array(),$param_is_xpath=false)
-    {
-        foreach ($xslt_parameters as $param=>$value)
-        $this->myxsltProcessor->setParameter('',$param,$value);
-        $myphp4DOMDocument=new php4DOMDocument();
-        $myphp4DOMDocument->myDOMNode=$this->myxsltProcessor->transformToDoc($dom_document->myDOMNode);
-        return $myphp4DOMDocument;
-    }
-    function result_dump_file($dom_document,$filename)
-    {
-        $html=$dom_document->myDOMNode->saveHTML();
-        file_put_contents($filename,$html);
-        return $html;
-    }
-    function result_dump_mem($dom_document) {return $dom_document->myDOMNode->saveHTML();}
-}
-}
-?>

include/limesurvey/admin/classes/phpCAS/CAS/languages/catalan.php

@@ -1,28 +0,0 @@
-<?php
-if (!defined('PHPCAS_VERSION')) die();
-
-/**
- * @file languages/spanish.php
- * @author Iván-Benjamín García Torà <ivaniclixx AT gmail DOT com
- * @sa @link internalLang Internationalization @endlink
- * @ingroup internalLang
- */
-
-$this->_strings = array(
-CAS_STR_USING_SERVER
-=> 'usant servidor',
-CAS_STR_AUTHENTICATION_WANTED
-=> 'Autentificació CAS necessària!',
-CAS_STR_LOGOUT
-=> 'Sortida de CAS necessària!',
-CAS_STR_SHOULD_HAVE_BEEN_REDIRECTED
-=> 'Ja hauria d\ haver estat redireccionat al servidor CAS. Feu click <a href="%s">aquí</a> per a continuar.',
-CAS_STR_AUTHENTICATION_FAILED
-=> 'Autentificació CAS fallida!',
-CAS_STR_YOU_WERE_NOT_AUTHENTICATED
-=> '<p>No estàs autentificat.</p><p>Pots tornar a intentar-ho fent click <a href="%s">aquí</a>.</p><p>Si el problema persisteix hauría de contactar amb l\'<a href="mailto:%s">administrador d\'aquest llocc</a>.</p>',
-CAS_STR_SERVICE_UNAVAILABLE
-=> 'El servei `<b>%s</b>\' no està disponible (<b>%s</b>).'
-);
-
-?>

include/limesurvey/admin/classes/phpCAS/CAS/languages/english.php

@@ -1,28 +0,0 @@
-<?php
-if (!defined('PHPCAS_VERSION')) die();
-
-/**
- * @file languages/english.php
- * @author Pascal Aubry <pascal.aubry at univ-rennes1.fr>
- * @sa @link internalLang Internationalization @endlink
- * @ingroup internalLang
- */
-
-$this->_strings = array(
-CAS_STR_USING_SERVER
-=> 'using server',
-CAS_STR_AUTHENTICATION_WANTED
-=> 'CAS Authentication wanted!',
-CAS_STR_LOGOUT
-=> 'CAS logout wanted!',
-CAS_STR_SHOULD_HAVE_BEEN_REDIRECTED
-=> 'You should already have been redirected to the CAS server. Click <a href="%s">here</a> to continue.',
-CAS_STR_AUTHENTICATION_FAILED
-=> 'CAS Authentication failed!',
-CAS_STR_YOU_WERE_NOT_AUTHENTICATED
-=> '<p>You were not authenticated.</p><p>You may submit your request again by clicking <a href="%s">here</a>.</p><p>If the problem persists, you may contact <a href="mailto:%s">the administrator of this site</a>.</p>',
-CAS_STR_SERVICE_UNAVAILABLE
-=> 'The service `<b>%s</b>\' is not available (<b>%s</b>).'
-);
-
-?>

include/limesurvey/admin/classes/phpCAS/CAS/languages/french.php

@@ -1,29 +0,0 @@
-<?php
-if (!defined('PHPCAS_VERSION')) die();
-
-/**
- * @file languages/english.php
- * @author Pascal Aubry <pascal.aubry at univ-rennes1.fr>
- * @sa @link internalLang Internationalization @endlink
- * @ingroup internalLang
- */
-
-$this->_strings = array(
-CAS_STR_USING_SERVER
-=> 'utilisant le serveur',
-CAS_STR_AUTHENTICATION_WANTED
-=> 'Authentication CAS n<>cessaire&nbsp;!',
-CAS_STR_LOGOUT
-=> 'D<>connexion demand<6E>e&nbsp;!',
-CAS_STR_SHOULD_HAVE_BEEN_REDIRECTED
-=> 'Vous auriez du etre redirig<69>(e) vers le serveur CAS. Cliquez <a href="%s">ici</a> pour continuer.',
-CAS_STR_AUTHENTICATION_FAILED
-=> 'Authentification CAS infructueuse&nbsp;!',
-CAS_STR_YOU_WERE_NOT_AUTHENTICATED
-=> '<p>Vous n\'avez pas <20>t<EFBFBD> authentifi<66>(e).</p><p>Vous pouvez soumettre votre requete <20> nouveau en cliquant <a href="%s">ici</a>.</p><p>Si le probl<62>me persiste, vous pouvez contacter <a href="mailto:%s">l\'administrateur de ce site</a>.</p>',
-CAS_STR_SERVICE_UNAVAILABLE
-=> 'Le service `<b>%s</b>\' est indisponible (<b>%s</b>)'
-
-);
-
-?>

include/limesurvey/admin/classes/phpCAS/CAS/languages/german.php

@@ -1,28 +0,0 @@
-<?php
-if (!defined('PHPCAS_VERSION')) die();
-
-/**
- * @file languages/german.php
- * @author Henrik Genssen <hg at mediafactory.de>
- * @sa @link internalLang Internationalization @endlink
- * @ingroup internalLang
- */
-
-$this->_strings = array(
-CAS_STR_USING_SERVER
-=> 'via Server',
-CAS_STR_AUTHENTICATION_WANTED
-=> 'CAS Authentifizierung erforderlich!',
-CAS_STR_LOGOUT
-=> 'CAS Abmeldung!',
-CAS_STR_SHOULD_HAVE_BEEN_REDIRECTED
-=> 'eigentlich h&auml;ten Sie zum CAS Server weitergeleitet werden sollen. Dr&uuml;cken Sie <a href="%s">hier</a> um fortzufahren.',
-CAS_STR_AUTHENTICATION_FAILED
-=> 'CAS Anmeldung fehlgeschlagen!',
-CAS_STR_YOU_WERE_NOT_AUTHENTICATED
-=> '<p>Sie wurden nicht angemeldet.</p><p>Um es erneut zu versuchen klicken Sie <a href="%s">hier</a>.</p><p>Wenn das Problem bestehen bleibt, kontkatieren Sie den <a href="mailto:%s">Administrator</a> dieser Seite.</p>',
-CAS_STR_SERVICE_UNAVAILABLE
-=> 'Der Dienst `<b>%s</b>\' ist nicht verf&uuml;gbar (<b>%s</b>).'
-);
-
-?>

include/limesurvey/admin/classes/phpCAS/CAS/languages/greek.php

@@ -1,28 +0,0 @@
-<?php
-if (!defined('PHPCAS_VERSION')) die();
-
-/**
- * @file languages/greek.php
- * @author Vangelis Haniotakis <haniotak at ucnet.uoc.gr>
- * @sa @link internalLang Internationalization @endlink
- * @ingroup internalLang
- */
-
-$this->_strings = array(
-CAS_STR_USING_SERVER
-=> '<27><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>',
-CAS_STR_AUTHENTICATION_WANTED
-=> '<27><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> CAS!',
-CAS_STR_LOGOUT
-=> '<27><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> CAS!',
-CAS_STR_SHOULD_HAVE_BEEN_REDIRECTED
-=> '<27><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> CAS. <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <a href="%s"><3E><><EFBFBD></a> <20><><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.',
-CAS_STR_AUTHENTICATION_FAILED
-=> '<27> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> CAS <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>!',
-CAS_STR_YOU_WERE_NOT_AUTHENTICATED
-=> '<p><3E><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.</p><p><3E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <a href="%s"><3E><><EFBFBD></a>.</p><p><3E><><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD> <a href="mailto:%s"><3E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD></a>.</p>',
-CAS_STR_SERVICE_UNAVAILABLE
-=> '<27> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> `<b>%s</b>\' <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (<b>%s</b>).'
-);
-
-?>

include/limesurvey/admin/classes/phpCAS/CAS/languages/japanese.php

@@ -1,28 +0,0 @@
-<?php
-if (!defined('PHPCAS_VERSION')) die();
-
-/**
- * @file languages/japanese.php
- * @author fnorif (fnorif@yahoo.co.jp)
- *
- * Now Encoding is EUC-JP and LF
- **/
-
-$this->_strings = array(
-CAS_STR_USING_SERVER
-=> 'using server',
-CAS_STR_AUTHENTICATION_WANTED
-=> 'CAS<41>ˤ<EFBFBD><CBA4>ǧ<EFBFBD>ڤ<EFBFBD>Ԥ<EFBFBD><D4A4>ޤ<EFBFBD>',
-CAS_STR_LOGOUT
-=> 'CAS<41><53><EFBFBD><EFBFBD>?<3F><><EFBFBD><EFBFBD><EFBFBD>Ȥ<EFBFBD><C8A4>ޤ<EFBFBD>!',
-CAS_STR_SHOULD_HAVE_BEEN_REDIRECTED
-=> 'CAS<41><53><EFBFBD><EFBFBD><EFBFBD>Ф˹Ԥ<CBB9>ɬ<EFBFBD>פ<EFBFBD><D7A4><EFBFBD><EFBFBD><EFBFBD>ޤ<EFBFBD><DEA4><EFBFBD><EFBFBD><EFBFBD>ưŪ<C6B0><C5AA>ž<EFBFBD><C5BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʤ<EFBFBD><CAA4><EFBFBD><EFBFBD><EFBFBD> <a href="%s"><3E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD></a> <20>򥯥<EFBFBD>å<EFBFBD><C3A5><EFBFBD><EFBFBD><EFBFBD>³<EFBFBD>Ԥ<EFBFBD><D4A4>ޤ<EFBFBD><DEA4><EFBFBD>',
-CAS_STR_AUTHENTICATION_FAILED
-=> 'CAS<41>ˤ<EFBFBD><CBA4>ǧ<EFBFBD>ڤ˼<DAA4><CBBC>Ԥ<EFBFBD><D4A4>ޤ<EFBFBD><DEA4><EFBFBD>',
-CAS_STR_YOU_WERE_NOT_AUTHENTICATED
-=> '<p>ǧ<>ڤǤ<DAA4><C7A4>ޤ<EFBFBD><DEA4><EFBFBD>Ǥ<EFBFBD><C7A4><EFBFBD>.</p><p><3E>⤦<EFBFBD><E2A4A6><EFBFBD>٥ꥯ<D9A5><EAA5AF><EFBFBD><EFBFBD><EFBFBD>Ȥ<EFBFBD><C8A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><a href="%s"><3E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD></a><3E>򥯥<EFBFBD>å<EFBFBD>.</p><p><3E><><EFBFBD>꤬<EFBFBD><EAA4AC>褷<EFBFBD>ʤ<EFBFBD><CAA4><EFBFBD><EFBFBD><EFBFBD> <a href="mailto:%s"><3E><><EFBFBD>Υ<EFBFBD><CEA5><EFBFBD><EFBFBD>Ȥδ<C8A4><CEB4><EFBFBD><EFBFBD></a><3E><><EFBFBD>䤤<EFBFBD><E4A4A4>碌<EFBFBD>Ƥ<EFBFBD><C6A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.</p>',
-CAS_STR_SERVICE_UNAVAILABLE
-=> '<27><><EFBFBD><EFBFBD><EFBFBD>ӥ<EFBFBD> `<b>%s</b>\' <20><><EFBFBD><EFBFBD><EFBFBD>ѤǤ<D1A4><C7A4>ޤ<EFBFBD><DEA4><EFBFBD> (<b>%s</b>).'
-);
-
-?>

include/limesurvey/admin/classes/phpCAS/CAS/languages/languages.php

@@ -1,24 +0,0 @@
-<?php
-
-/**
- * @file languages/languages.php
- * Internationalization constants
- * @author Pascal Aubry <pascal.aubry at univ-rennes1.fr>
- * @sa @link internalLang Internationalization @endlink
- * @ingroup internalLang
- */
-
-//@{
-/**
- * a phpCAS string index
- */
-define("CAS_STR_USING_SERVER",                1);
-define("CAS_STR_AUTHENTICATION_WANTED",       2);
-define("CAS_STR_LOGOUT",                      3);
-define("CAS_STR_SHOULD_HAVE_BEEN_REDIRECTED", 4);
-define("CAS_STR_AUTHENTICATION_FAILED",       5);
-define("CAS_STR_YOU_WERE_NOT_AUTHENTICATED",  6);
-define("CAS_STR_SERVICE_UNAVAILABLE",         7);
-//@}
-
-?>

include/limesurvey/admin/classes/phpCAS/CAS/languages/spanish.php

@@ -1,28 +0,0 @@
-<?php
-  if (!defined('PHPCAS_VERSION')) die();
-
-/**
- * @file languages/spanish.php
- * @author Iván-Benjamín García Torà <ivaniclixx AT gmail DOT com
- * @sa @link internalLang Internationalization @endlink
- * @ingroup internalLang
- */
-
-$this->_strings = array(
-CAS_STR_USING_SERVER
-=> 'usando servidor',
-CAS_STR_AUTHENTICATION_WANTED
-=> '¡Autentificación CAS necesaria!',
-CAS_STR_LOGOUT
-=> '¡Salida CAS necesaria!',
-CAS_STR_SHOULD_HAVE_BEEN_REDIRECTED
-=> 'Ya debería haber sido redireccionado al servidor CAS. Haga click <a href="%s">aquí</a> para continuar.',
-CAS_STR_AUTHENTICATION_FAILED
-=> '¡Autentificación CAS fallida!',
-CAS_STR_YOU_WERE_NOT_AUTHENTICATED
-=> '<p>No estás autentificado.</p><p>Puedes volver a intentarlo haciendo click <a href="%s">aquí</a>.</p><p>Si el problema persiste debería contactar con el <a href="mailto:%s">administrador de este sitio</a>.</p>',
-CAS_STR_SERVICE_UNAVAILABLE
-=> 'El servicio `<b>%s</b>\' no está disponible (<b>%s</b>).'
-);
-
-?>

include/limesurvey/admin/classes/phpCAS/LICENSE

@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
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+      the terms of any separate license agreement you may have executed
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+
+   6. Trademarks. This License does not grant permission to use the trade
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include/limesurvey/admin/classes/phpCAS/NOTICE

@@ -0,0 +1,81 @@
+Copyright 2007-2011, JA-SIG, Inc.
+This project includes software developed by Jasig.
+http://www.jasig.org/
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this software 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.
+
+===========================================================================
+
+Copyright © 2003-2007, The ESUP-Portail consortium
+
+Requirements for sources originally licensed under the New BSD License:
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+- Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+
+- Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+- Neither the name of JA-SIG, Inc. nor the names of its contributors may be
+used to endorse or promote products derived from this software without
+specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+
+===========================================================================
+
+Copyright (c) 2009, Regents of the University of Nebraska
+All rights reserved.
+
+Requirements for CAS_Autloader originally licensed under the New BSD License:
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+Redistributions of source code must retain the above copyright notice, this list
+of conditions and the following disclaimer.
+
+Redistributions in binary form must reproduce the above copyright notice, this
+list of conditions and the following disclaimer in the documentation and/or
+other materials provided with the distribution.
+
+Neither the name of the University of Nebraska nor the names of its contributors
+may be used to endorse or promote products derived from this software without
+specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.

include/limesurvey/admin/classes/phpCAS/README

@@ -1,36 +0,0 @@
-README
-phpCAS - http://www.ja-sig.org/wiki/display/CASC/phpCAS
-This software contains a client library for PHP, which can be used to identify
-Central Authentication Service (CAS) authenticated users.
-
-Please see the phpCAS website for more information.
-
-http://www.ja-sig.org/wiki/display/CASC/phpCAS
-
-LICENSE
-Copyright © 2003-2008, The ESUP-Portail consortium & the JA-SIG Collaborative.
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-    * Redistributions of source code must retain the above copyright notice,
-      this list of conditions and the following disclaimer.
-    * Redistributions in binary form must reproduce the above copyright notice,
-      this list of conditions and the following disclaimer in the documentation
-      and/or other materials provided with the distribution.
-    * Neither the name of the ESUP-Portail consortium & the JA-SIG
-      Collaborative nor the names of its contributors may be used to endorse or
-      promote products derived from this software without specific prior
-      written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
-ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

include/limesurvey/admin/classes/phpCAS/README.md

@@ -0,0 +1,31 @@
+phpCAS
+=======
+
+phpCAS is an authentication library that allows PHP applications to easily authenticate
+users via a Central Authentication Service (CAS) server.
+
+Please see the phpCAS website for more information:
+
+https://wiki.jasig.org/display/CASC/phpCAS
+
+[![Build Status](https://travis-ci.org/Jasig/phpCAS.png)](https://travis-ci.org/Jasig/phpCAS)
+
+
+LICENSE
+-------
+
+Copyright 2007-2015, JA-SIG, Inc.
+This project includes software developed by Jasig.
+http://www.jasig.org/
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this software 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.

include/limesurvey/admin/classes/phpCAS/docs/Building

@@ -0,0 +1,34 @@
+########################################
+### Build process for phpCAS package ###
+########################################
+
+1. Prepare your own build config:
+
+go to the utils/ dir and copy build-example.properties to a
+build.properties file and adjust the path for all needed binaries. You need
+at least php and doxygen for package creation. Git is needed as a developer with
+commit priviledges and upload right for the distribution package.
+
+2. Install necessary php packages:
+
+Install the pear package PEAR_PackageFileManager2 via the command
+
+"pear install PEAR_PackageFileManager2"
+
+
+3. Run the "ant" tasks to build the phpCAS package and other developer tasks:
+
+ant dist      # create a local package
+ant clean     # clear local packages and temporary files
+ant prepare   # The default action, tags, packages, and commits to the local git repository
+ant push      # Push the new commits and tags to the origin repository (github)
+ant upload    # Upload to jasig
+ant makeCurrentSymlink # Set the symbolic link on the jasig site for the most current packages
+ant revert    # To revert any "ant prepare" actions before they are pushed to the github repo
+
+The ant prepare target is equivalent to ant tag && ant dist && ant markdev.
+
+To revert the commits and tag additions added in the ant tag and ant markdev
+targets, use the new ant revert target. This should not be done after pushing.
+Running ant prepare is safe and can be followed by ant revert to get rid of the
+added commits and tag in your local repository.

include/limesurvey/admin/classes/phpCAS/docs/ChangeLog

@@ -0,0 +1,565 @@
+Changes in version 1.3.4
+Security Fixes:
+
+Bug Fixes:
+   * Mark auth call completed for post-auth callback [#131] (Daniel Frett)
+   * Remove typo CAS_TypeMismatchException [#133] (Gabrijel Gavranović)
+   * Fix SERVER_ADMIN error for alternate Webservers [#103] (Joachim Fritschi)
+   * Fix non-strict string comparision in _isHttps check [#139] (Brandon Peters)
+   * Fix setNoCasServerValidation for cURL 7.10 [#122] (Joachim Fritschi)
+   * Fix renew support [#93] (Joachim Fritschi)
+   * _getClientUrl() fixes with reverse proxies [#154] adongy
+   * Param type doc should be 'string' in CAS::logoutWithRedirectService() [#167] Chris McCafferty
+   * Fix broken class reference [#161] Joachim Fritschi
+
+
+Improvement:
+   * Add phpCAS::isInitialized() API method [#112] (Adam Franco)
+   * select temporary directory based on env vars [#136) (Geoffroy Desvernay)
+   * Add gitattributes to reduce unnecessary files from composer installs. [#141] (Jon Dufresne)
+   * Allow cas endpoint to be a 'get url' [#146] (flushbi)
+   * Add documentation for phpCAS::$_PHPCAS_CLIENT [#156] (Sylvain)
+   * Improve https check [#139] (Joachim Fritschi)
+   * Add time to trace [#158] (cwsterling)
+   * Add php5.6 tests, move to faster docker env [#169] (Florian Holzhauer)
+   * Introduce a setVerbose() toggle to prevent debug info leaking in production [#152 #147] (Joachim Fritschi)
+ 
+ 
+Changes in version 1.3.3
+Security Fixes:
+   * CVE-2014-4172 Urlencode all tickets [#125] (Marvin Addison)
+
+Bug Fixes:
+   * Fix CURL compatibility CURL >= 7.28.0 [#66] (adoy)
+   * Commit session before redirect [#79] (kakawait)
+   * Fix warnings for php => 5.5 [87] (fh)
+   * Update wrong wording in examples [#90] (misilot)
+   * Fixed bug in imap.php [#105] (echampet)
+   * Fix missing Server_Admin variable for nginex [#121](arianf)
+   * Fix error in TypeMismatchException [#123 ](Develle)
+   * Fix bug in https test [#126] (Florent Baldino)
+   
+
+Improvement:
+   * Fix grammar of documentation [#61] (frett)
+   * Improved testability of the phpCAS client [#7] (Adam Franco)
+   * Fixed typo [#70] (fh)
+   * Example for improved cookie hardening [#67] (Joachim Fritschi)
+   * Added support for X-Forwarded-Proto Header [#77] (Paul Donohue)
+   * Added composer support [#73] (dhyde)
+   * Travis for continuous integration [#82] (fh)
+   * Support for X-Forwared-Port [#100] (neopeak)
+   * Support for CAS 3.0 protocol [#116] (fredrik-w)
+
+
+Changes in version 1.3.2
+Security Fixes:
+   * CVE-2012-5583 Missing CN validation of CAS server certificate [#58] (Joachim Fritschi)
+
+Bug Fixes:
+   * Fix broken character encoding in Greek and French [#40] (Joachim Fritschi)
+   * Minor error corrections in a few example files [] (Joachim Fritschi)
+   * Remove erroneous break statement [#44] (jbittel)
+   * Use X-Forwarded-Port [#45] (Andrew Kirkpatrick)
+   * Stop autoloader using set_include_path [#51/#52] (drysdaleb)
+   * Fix undefined property in the rebroadcast code [#47] (Joachim Fritschi)
+
+Improvement:
+   * Enable getCookies on a proxied sevices [#56] (Adam Franco)
+
+Changes in version 1.3.1
+Bug Fixes:
+   * Readd PEAR support to the package [#30]  (Joachim Fritschi)
+   * fix a __autoload conflicts in the autoloader [#36] (Joachim Fritschi)
+   * fix PEAR code style errors [25] (Joachim Fritschi)
+   * properly unset variables during checkAuthenticate[#35] (Joachim Fritschi)
+
+Changes in version 1.3.0
+Improvements:
+   * enable single sign-out when session has already started [#29] (Benvii)
+
+Changes in version 1.3.0RC1
+
+Bug Fixes:
+   * the saml logout url should be parsed urlencoded [#24] (dlineate)
+   * fix a proxy mode bug introduced in a previous comitt [#16] (Adam Franco)
+   * Fix include_path order so that the phpCAS path takes precedence [#13] (Adam Franco)
+   * fix invalid characters in the php session naming [#17] (Joachim Fritschi)
+   * fix an initialisation problem introduced in the PGT storage [18] (Daniel Frett)
+   * make sure the PGTStorage object is initialized if a user is utilizing the createTable method [#4] (Daniel Frett)
+   * Fix error message in phpCAS::setCacheTimesForAuthRecheck() [PHPCAS-132/#1] (Bradley Froehle)
+   * Always return attributes in utf8 [PHPCAS-102]
+   * Fix warning during debugging if debug is set to false [PHPCAS-123] (Sean Watkins)
+
+New Features:
+    * Add a script to create the PGT db table in proxy mode [#11] (Joachim Fritschi)
+    * Switch to the Apache License [#5] (Adam Franco, Joachim Fritschi)
+    * Move to github and add all necessary file to package [#12] (Adam Franco)
+    * New build process for github [#12] (Adam Franco)
+    * Update unit tests to work with the lastest phpunit version [PHPCAS-128] (Adam Franco)
+    * Refacatoring of the protocol decision making to allow validation of proxied usage [PHPCAS-69] (Joachim Fritschi, Adam Franco)
+    * Rebroadcast of logout and pgtiou to support clustered phpcas [PHPCAS-100] (Matthew Selwood, Adam Franco)
+
+Improvements:
+    * Improved cookie handling [] (Adam Franco
+    * Indent, format and user name guidelines of PEAR [#14] (Joachim Fritschi)
+    * Add a class autoloading feature [PHPCAS-125/#8] (Joachim Fritschi)
+    * Remove global variables [PHPCAS-126] (Adam Franco)
+    * Implementation of an exception framework to allow gracefull termination [PHPCAS-109] (Joachim Fritschi)
+
+Security Fixes:
+    * CVE-2012-1104 validate proxied usage of a service [PHPCAS-69] (Joachim Fritschi, Adam Franco)
+    * CVE-2012-1105 change the default PGT save path to the session storage path and set proper permissions [#22] (Joachim Fritschi)
+
+Changes in version 1.2.2
+
+Bug Fixes:
+    * Improve compatibility with php < 5.3 for E_USER_DEPRECATED [PHPCAS-116] (Hugh Eaves)
+
+Changes in version 1.2.2RC1
+
+Bug Fixes:
+    * CASClient::getURL() cannot be private [PHPCAS-103] (Joachim Fritschi)
+    * CASClient::getServerServiceValidateURL() doesn't respect existing query strings [PHPCAS-104] (Bradley Froehle, Joachim Fritschi)
+    * CASClient::retrievePT() must be a public function [PHPCAS-107] (Joachim Fritschi)
+    * Expose setNoClearTicketsFromUrl() to the client [PHPCAS-108]  (Joachim Fritschi)
+    * Remove the PGT filestorage in xml format that is not implemented [PHPCAS-112] (Joachim Fritschi)
+    * Fix compatibility of the PGT db storage interface with postgres [PHPCAS-113] (Joachim Fritschi)
+
+Improvement
+    * Support for proxied POST requests. [PHPCAS-90] (Adam Franco)
+    * Add missing example for the new pgt-db storage [PHPCAS-101] (Joachim Fritschi)
+    * CASClient::getServerLoginURL(): Don't cache gateway/renew parameters [PHPCAS-105] (Bradley Froehle)
+    * fix parsing of cookies with special symbols in their values [PHPCAS-106] (Joachim Fritschi)
+    * Removal of the debug_backtrace hack for php4 [PHPCAS-110] (Joachim Fritschi)
+    * Clean up the naming structure of the classes [PHPCAS-111] (Joachim Fritschi)
+    * Better debug log output format [PHPCAS-114] (Joachim Fritschi)
+    * Many more examples and one central config. Improved code documentation [PHPCAS-86] (Joachim Fritschi, Adam Franco)
+
+Changes in version 1.2.1
+   * None
+
+Changes in version 1.2.1RC1
+Improvements
+   * add support for storing PGTs in a database [PHPCAS-94] (Daniel Frett)
+
+Bug Fixes
+   * phpCAS::setDebug(FALSE) should stop logging [PHPCAS-95] (Joachim Fritschi)
+   * fix checkAuthenticate return value documentation [PHPCAS-92] (Joachim Fritschi)
+   * fix PGTStorage contructor name [PHPCAS-93] (Daniel Frett)
+   * fix the PHPCAS_SERVICE_NOT_AVAILABLE constant [PHPCAS-91] (Daniel Frett)
+   * fix redirection with multiple proxies in HTTP_X_FORWARDED_HOST [PHPCAS-98] (Joachim Fritschi)
+   * fix some undefinde variable warnings in debug mode [PHPCAS-96] (Joachim Fritschi)
+
+Changes in version 1.2.0
+   * None
+
+Changes in version 1.2.0RC2
+Improvements
+   * add callback hooks during authentication and single sign-out [PHPCAS-76] (Adam Franco)
+
+Changes in version 1.2.0RC1
+Improvements
+   * add hasAttribute($key) and getAttribute($key) [PHPCAS-43] (Adam Franco)
+   * add unit tests for cas 2.0 attribute support [PHPCAS-88] (Adam Franco)
+   * expose the proxy chain through the phpcas interface [PHPCAS-89] (Adam Franco)
+   * add deprecation messages to the logout functions with an url parameter [PHPCAS-85] (Joachim Fritschi)
+
+Bug Fixes
+	* fix  public/private modifier for some functions [PHPCAS-87] (Joachim Fritschi)
+
+Changes in version 1.2.0-beta1
+
+Bug Fixes
+  * fix redirection behind a proxy. [PHPCAS-78] (Alex Barker)
+  * remove the bogus setCasServerCert() function and clean up the curl ssl settings [PHPCAS-84] (Joachim Fritschi)
+
+Improvements
+   * mark the logout functions with an url parameter a deprecated [PHPCAS-85] (Joachim Fritschi)
+   * add public/private modifier for all vars and functions [PHPCAS-77] (Joachim Fritschi)
+   * add a testing framwork that implement on and offline testing capabilities [PHPCAS-66] (Adam Franco)
+   * add RFC compliant cookie storage for the proxy() mode. [PHPCAS-54] (Adam Franco)
+   * removal of the domxml compatibility lib [PHPCAS-72] (Matthew Brooks, Joachim Fritschi)
+   * add support for attributes for the cas_2.0 protocol [PHPCAS-43] (Joachim Fritschi, Adam Franco)
+   * removal of unused code and comments [PHPCAS-63] (Joachim Fritschi)
+   * fix static function warnings for php 5.x [PHPCAS-46] (Joachim Fritschi)
+
+Changes in version 1.1.3
+  Bug Fixes
+   * removal of the non functional pgt-db backend [PHPCAS-65] (Joachim Fritschi)
+
+Changes in version 1.1.3RC1
+ Security Issue
+    * CVE-2010-3690 phpCAS: XSS during a proxy callback [PHPCAS-80] (Joachim Fritschi)
+    * CVE-2010-3691 phpCAS: prevent symlink attacks during a proxy callback [PHPCAS-80] (Joachim Fritschi)
+    * CVE-2010-3692 phpCAS: directory traversal during a proxy callback [PHPCAS-80] (Joachim Fritschi)
+
+ Bug Fixes
+   * fix missing $this in domxml-php4-to-php5 [PHPCAS-73] (Iñaki Arenaza)
+   * fix broken redirection with safari [PHPCAS-79] (Alex Barker)
+   * fix missing exit() call during ticket validation [PHPCAS-76] (Igor Blanco,Joachim Fritschi)
+   * fix a notice because REQUEST_URL is not defined on IIS [PHPCAS-81] (Iñaki Arenaza)
+   * fix a typo in pgt-db.php [PHPCAS-75] (Julien Cochennec)
+
+ Improvements
+   * upgrade domxml-php4-to-php5 to the newest version [PHPCAS-74] (Joachim Fritschi)
+
+Changes in version 1.1.2
+   * None
+
+Changes in version 1.1.2RC2
+ Bug Fixes
+    * Prevent domxml-php4-to-php5 to be inclueded twice [PHPCAS-48] (Brad Krane)
+
+Changes in version 1.1.2RC1
+Security Issue
+    * Fix a session hijacking hole CVE-2010-2795 [PHPCAS-61] (Joachim Fritschi)
+    * callbackurl in proxy mode should be urlencoded CVE-2010-2796 [PHPCAS-67] (Joachim Fritschi)
+
+ Improvement
+    * Debuglog contains phpCAS version information [PHPCAS-62] (Joachim Fritschi)
+
+ Bug Fixes
+    * Fix warnings for SAML responses without attributes [PHPCAS-59] (Joachim Fritschi)
+    * Fix duplicate SAML debug output [PHPCAS-64] (Joachim Fritschi)
+    * Providing a new ST/PT/SA during an authenticated session will be ignored
+      and a warning will be issued to the debug log. [PHPCAS-61] (Joachim Fritschi)
+    * fix 2 undefinded variable notices in serviceWeb() [PHPCAS-68] (Joachim Fritschi)
+
+Changes in version 1.1.1
+Improvement
+    * On Single Sign Out destroy any existing application session before deleting the phpcas session [PHPCAS-58] (Joachim Fritschi)
+
+Changes in version 1.1.1RC2
+Bug fixes
+    * Fix bug in handling urls containing parameters without values [PHPCAS-57] (Joe Lencioni)
+    * New XSS patch for PHPCAS-52 that was undone in r48507 [PHPCAS-57] (Joachim Fritschi)
+
+Changes in version 1.1.1RC1
+Bug fixes
+    * Fix bug in restoring an existing session [PHPCAS-55] (Joachim Fritschi)
+
+Changes in version 1.1.0
+Improvement
+    * Replace deprecated split() with explode(). [PHPCAS-42] (Joe Lencioni)
+
+Changes in version 1.1.0RC8
+Bug fixes
+    * Add additional comments regarding the use of serviceValidate and proxyValdiate [PHPCAS-44] (Joachim Fritschi)
+    * Revert all changes made to the ticket parsing in r47347 r48210 [PHPCAS-44] (Joachim Fritschi)
+    * Fix warning when destroying uninitialized session [PHPCAS-53] (Yann Richard,Joachim Fritschi)
+
+Changes in version 1.1.0RC7
+Security fixes
+    * Fix XSS Vulnerability. Sanatize parameters before using the url submitted by a client [PHPCAS-52] (Joachim Fritschi)
+
+Changes in version 1.1.0RC6
+Bug fixes
+    * restore any possible old session before renaming the session [PHPCAS-50] (Joachim Fritschi)
+
+Changes in version 1.1.0RC5
+Bug fixes
+    * fixed don't destroy existing sessions unless needed, more debug output [PHPCAS-50] (Joachim Fritschi)
+
+Changes in version 1.1.0RC4
+Bug fixes
+
+    * fixed use PHP4 functions to parse saml11 attributes [PHPCAS-51] (Joachim Fritschi)
+
+Changes in version 1.1.0RC3
+Bug fixes
+
+    * added a check for missing params [PHPCAS-42] (Joachim Fritschi)
+
+Changes in version 1.1.0RC2
+New features
+
+    * added custom validation Urls [PHPCAS-45] (Joachim Fritschi).
+
+Bug fixes
+
+    * fixed PGT DB storage parameter list [PHPCAS-47] (Paul Merchant, Jr.)
+    * fixed parsing of STs [PHPCAS-44] (Joachim Fritschi)
+    * fixed session initialisation [PHPCAS-50] (Joachim Fritschi)
+    * fixed urls with than one query parameter [PHPCAS-42] (Caio Chassot)
+
+Changes in version 1.1.0RC1
+New features
+
+    * added SAML support [PHPCAS-40] (Brian Long and Matthias Crauwels).
+
+Bug fixes
+
+    * fixed invalid validation URLs [PHPCAS-39] (Alex Danieli).
+    * removed old PHP4 references [PHPCAS-41] (Yann Richard).
+    * fixed curl options [PHPCAS-38] (Andy Cowling).
+
+Improvement
+
+    * added accept IP addresses for allowed clients [PHPCAS-37] (Arunas Stockus)
+
+Changes in version 1.0.2RC1
+Bug fixes
+
+    * fix redirections masking error messages [PHPCAS-36] (Olivier Berger)
+    * fixed validatePGT() failing on phpCAS::traceBegin() with newer domxml-php4-to-php5.php [PHPCAS-35] (Olivier Berger)
+    * Fixed missing exit() at end of callback() method [PHPCAS-34] (Olivier Berger)
+    * Update included domxml-php4-php5.php to most recent version now under LGPL [PHPCAS-30] (Olivier Berger)
+    * fixed empty $target_service in CAS_Client:serviceMail [PHPCAS-22] (Julien Marchal).
+
+Changes in version 1.0.1
+Bug fixes
+
+    * fixed PEAR base install directory [PHPCAS-28] (Brett Bieber).
+    * fixed illegal characters in session id [PHPCAS-29] (Michael Ströder, Brett Bieber).
+    * fixed refresh with ticket causes authentication failure [related to PHPCAS-27] (Brett Bieber).
+    * fixed conflict with custom session handlers [PHPCAS-26] (Martin Gonzalez).
+
+Changes in version 1.0.0
+New features
+
+    * phpCAS is now PEAR-installable (Brett Bieber).
+    * added method handleLogoutRequests() to handle logout requests incoming from the CAS server (Julien Marchal and Pascal Aubry, requested by Craig Andrews).
+    * added methods setHttpProxy(), setNetworkInterface() and setExtraCurlOptions() (Stéphane Gully).
+
+Enhancements
+
+    * removed undesirable notice (Glennie Vignarajah).
+    * removed PEAR DB dependency when storing PGTs to the filesytem (Stéphane Gully).
+
+Changes in version 0.6.0
+New features
+
+    * added methods setCasServerCert() and setCasServerCaCert() to authenticate the CAS server, and method setNoCasServerValidation() to skip the SSL checks (Pascal Aubry, requested by Andrew Petro).
+    * Added spanish and catalan translations (Ivan Garcia).
+
+Bug fix
+
+    * fixed PGT storage path on Windows (Olivier Thebault).
+
+Changes in version 0.5.1
+New features
+
+    * restored method isAuthenticated() (Julien Marchal).
+
+Changes in version 0.5.0
+New features
+
+    * added japanese translation (Noriyuki Fukuoka).
+    * added german translation (Henrik Genssen).
+    * phpCAS now works for CAS v3 proxy tickets (Matt Zukowski).
+    * phpCAS now also works with lighttpd (Marvin Addison)
+
+Bug fixes
+
+    * fixed method setHTMLFooter() (Noriyuki Fukuoka).
+    * fixed method setHTMLHeader() (Xavier Castanho).
+    * fixed method isHttps() (Henrik Genssen).
+    * fixed method PGTStorageDB() (Ray Lambe).
+    * encode all the parameters, not only '&' characters (Matthew Debus).
+    * fixed ST proxy tickets (Julien Marchal).
+
+Changes in version 0.4.23
+Enhancement
+
+    * removed notice messages (David Lowry).
+
+Changes in version 0.4.22
+Bug fix
+
+    * added default value for parameter gateway in methods setServerLoginUrl() and redirectToCas() (Velpi).
+
+New Feature
+
+    * added method isSessionAuthenticated() (Brendan Arnold).
+
+Other change
+
+    * removed the call to error_reporting() to allow the configuration of error reporting at server level (Pascal Aubry, requested by Sylvain Derosiaux).
+
+Changes in version 0.4.21
+Bug fix
+
+    * some URLs were ill-formed in some rare circumstances (Jérôme Andrieux).
+
+New Feature
+
+    * added methods setServerLoginURL() and setServerLogoutURL() (Wyman Chan).
+
+Changes in version 0.4.20
+New feature
+
+    * phpCAS::checkAuthentication() implements the gateway feature of CAS (Pascal Aubry, requested by Romuald Lorthioir).
+
+Other change
+
+    * phpCAS::authenticateIfNeeded() was renamed phpCAS::forceAuthentication() (Pascal Aubry).
+
+Changes in version 0.4.19
+New features
+
+    * the service URL for the CAs server can be fixed with method phpCAS::setFixedServiceURL (Julien Marchal).
+    * the callback URL used to receive PGTs can be fixed with method phpCAS::setFixedCallbackURL() (Julien Marchal).
+
+    * added a CAS_Client wrapper to class phpCAS for method retrievePGT() (Julien Marchal).
+
+Changes in version 0.4.18
+Bug fixes
+
+    * debugging information was missing (Alexandre Boisseau).
+    * used an undefined variable in pgt-file.php (Alexandre Boisseau).
+
+Changes in version 0.4.17
+Enhancement
+
+    * made phpCAS PHP5 compliant (Vangelis Haniotakis).
+
+Changes in version 0.4.16
+Enhancement
+
+    * added the possibility not to start the session management (Vangelis Haniotakis).
+
+Changes in version 0.4.15
+Enhancement
+
+    * added a hack to make phpCAS work with IIS (Vangelis Haniotakis).
+
+Changes in version 0.4.14
+Enhancement
+
+    * a URL can be given to the CAS server on logout (Sébastien Gougeon and Yann Richard).
+
+Changes in version 0.4.13
+Bug fix
+
+    * Removed infinite loop in debug mode (Robert Legros).
+
+Changes in version 0.4.12
+Enhancement
+
+    * phpCAS now works even if the web server does not set SERVER_NAME, by relying on HTTP_HOST (Terence Chiu).
+
+Changes in version 0.4.11
+Bug fix
+
+    * A typo prevented ticket validation to work correctly (Robert Legros).
+
+Changes in version 0.4.10
+Enhancement
+
+    * phpCAS was previously working with PHP >= 4.3.0. A debug_backtrace() wrapper was added and get_elements_by_tagname() calls were modified to make phpCAS work with phpCAS >= 4.2.2 (Robert Legros).
+
+Changes in version 0.4.9
+New features
+
+    * Added greek translation (Haniotakis Vangelis).
+
+Changes in version 0.4.8
+Enhancements
+
+    * PEAR's DB.php inclusion is done only if a DB class was not already included. This eases the integration into some stand-alone tools that already include DB.php, like Tikiwiki (Pascal Aubry, requested by Terence Chiu).
+
+Changes in version 0.4.7
+Enhancements
+
+    * PHP session is now destroyed when using the phpCAS::logout() method (Pascal Aubry, requested by Ruben Recaba).
+    * Call getenv() whenever possible instead of directly dealing with environment variables (with $_ENV['xxx']), as $_ENV is not available par default on some Windows systems (Pascal Aubry).
+    * Set error reporting level to E_ALL ~ E_NOTICE (Pascal Aubry).
+    * Added the release number in the name of the main directory of the zip distribution file (Pascal Aubry, requested by Vincent Mathieu).
+    * Explicitly set certificate control to get round with different curl default configurations (Wyman Chan).
+
+Changes in version 0.4.6
+Security bug fix
+
+    * Credentials given to HTTP realms were given in the service URLs to the CAS server (Julien Marchal).
+
+Enhancements
+
+    * phpCAS now works behind an Apache reverse proxy (Julien Marchal).
+
+Changes in version 0.4.5
+Enhancements
+
+    * Developer releasing is now made by ant (Pascal Aubry).
+
+Bug fixes
+
+    * CAS/PGTStorage files have been renamed to fit to Windows case insensitivity (Pascal Aubry);
+    * %TMP% and %TEMP% environment variables are now taken into account to set the location of the log file (Pascal Aubry).
+
+Changes in version 0.4.4
+Enhancement
+
+    * ticket retrieval and validation is now made with curl (Pascal Aubry).
+
+Changes in version 0.4.3
+Bug fix
+
+    * phpCAS was not exiting right after redirecting in callback mode (Julien Marchal)
+
+Changes in version 0.4.2
+New features
+
+    * Authentication checking is not necessarily redirecting to the CAS server (introduced phpCAS::isAuthenticated()) (Pascal Aubry)
+    * phpCAS can now be used to access IMAP/POP3/NNTP services (cf phpCAS::serviceMail()) (Pascal Aubry)
+
+Enhancements
+
+    * debugging informations has been improved and is now send to a separate file (/tmp/phpCAS.log by default, can be changed by phpCAS::setDebug()) (Pascal Aubry)
+
+Changes
+
+    * phpCAS::authenticate() is replaced by phpCAS::authenticateIfNeeded() (semantics unchanged) (Pascal Aubry)
+    * phpCAS::service() is replaced by phpCAS::serviceWeb() (semantics unchanged) (Pascal Aubry)
+    * phpCAS::setDebug() accepts FALSE (to stop debugging) or the name of a file (to log informations) (Pascal Aubry)
+
+Changes in version 0.4.1
+New features
+
+    * Sessionning between CAS proxies and services (Pascal Aubry)
+
+Changes in version 0.4
+New features
+
+    * CAS proxies can be chained (Pascal Aubry)
+    * improved error printing and debugging (introduced phpCAS::error()) (Pascal Aubry)
+
+Enhancements
+
+    * proxy parameter removed from phpCAS::client() and introduced phpCAS::proxy() (Pascal Aubry)
+    * moved history from CAS/doc.php to history.php (create_version script updated accordingly) (Pascal Aubry)
+    * improved type-checking and controls for phpCAS methods (Pascal Aubry)
+
+Changes in version 0.3.2
+New features
+
+    * CAS proxies now work with HTTP (HTTPS only used for callbacks) (Pascal Aubry)
+
+Changes in version 0.3.1
+Bug fixes
+
+    * syntax error in CAS/Client.php (Julien Marchal)
+
+Changes in version 0.3
+New features
+
+    * CAS proxies are now supported (but no PGT retrieving for proxied client) (Pascal Aubry)
+    * introduced phpCAS container (Pascal Aubry)
+
+Bug fixes
+
+    * CAS_LANG_DEFAULT is now taken into account (Pascal Aubry)
+
+TODO
+
+    * support for PGT storage to databases (Pascal Aubry)
+    * PGT retrieving for proxied clients (Pascal Aubry)
+
+Version 0.2
+Features (Pascal Aubry)
+
+    * `Basic' (1.0) CAS mechanism supported (CAS proxies not implemented)
+    * Support for CAS versions 1.0 and 2.0 URL's
+    * Debug mode
+    * Customization of all output pages
+    * Internationalization (english and french, looking for translators...)

include/limesurvey/admin/classes/phpCAS/docs/Upgrading

@@ -0,0 +1,100 @@
+################################
+### Upgrading 1.3.1 -> 1.3.2 ###
+################################
+
+Due to the missing validation of the CN of the SSL certifcate it may be that
+phpcas fails validation of CAS server certicates that do not match the IP/DNS
+name you use in the phpcas client() or proxy() setup.
+If this happens a quick workaround to change the setup to the old but unsecure
+behaviour. This can be seen in the no_ssl_cn_validation example.
+This is not a recommended setting and is no a secure setup!
+
+################################
+### Upgrading 1.2.x -> 1.3.0 ###
+################################
+
+
+------------------------------------------------------------------
+1. Changing of the default debug.log permissions:
+------------------------------------------------------------------
+
+The default debug log is now created with 0600 permissions to be only readable
+by the webserver
+
+-------------------------------------------------------
+2. Changing of the behaviour of proxied applications:
+-------------------------------------------------------
+
+If your application is being proxied (Another casified application is using
+proxy tickets to access your service you need to change your configuration. The
+new default configuration is now to deny any proxied use of your service unless
+it is exlicitly allowed:
+
+If you want your service to be proxied you have to enable it (default disabled)
+and define an accepable list of proxies that are allowed to proxy your service.
+
+Add each allowed proxy definition object. For the normal CAS_ProxyChain
+class, the constructor takes an array of proxies to match. The list is in
+reverse just as seen from the service. Proxies have to be defined in reverse
+from the service to the user. If a user hits service A and gets proxied via
+B to service C the list of acceptable on C would be array(B,A). The definition
+of an individual proxy can be either a string or a regexp (preg_match is used)
+that will be matched against the proxy list supplied by the cas server
+when validating the proxy tickets. The strings are compared starting from
+the beginning and must fully match with the proxies in the list.
+
+Examples:
+      phpCAS::allowProxyChain(new CAS_ProxyChain(array(
+              'https://app.example.com/'
+          )));
+or
+      phpCAS::allowProxyChain(new CAS_ProxyChain(array(
+              '/^https:\/\/app[0-9]\.example\.com\/rest\//',
+              'http://client.example.com/'
+          )));
+
+For quick testing or in certain production screnarios you might want to
+allow allow any other valid service to proxy your service. To do so, add
+the "Any" chain:
+
+      phpcas::allowProxyChain(new CAS_ProxyChain_Any);
+
+THIS SETTING IS HOWEVER NOT RECOMMENDED FOR PRODUCTION AND HAS SECURITY
+ IMPLICATIONS: YOU ARE ALLOWING ANY SERVICE TO ACT ON BEHALF OF A USER
+ ON THIS SERVICE.
+
+
+----------------------------------------------------------------
+3. Changing of the default PGT file storage location in proxy mode:
+----------------------------------------------------------------
+
+The default storage of the sensitive PGT session files is the
+session_save_path() now. This is a php environment dependent dir which is also
+used for storing your php session data. The default permissions are also changed
+to 0600 to be only readable by the webserver.
+
+
+
+
+------------------------------------------------------------------
+4. The setPGTStorageFile() function has changed it parameters.
+------------------------------------------------------------------
+
+The setPGTStorageFile() function no longer needs an storage "format" argument.
+Since the format functionality was never implemented it has now been dropped
+and only the path argument is necessary.
+
+------------------------------------------------------------------
+5. The startSession boolean in the constructor has been changed to
+changeSessionID
+------------------------------------------------------------------
+
+The last parameter of the constructor for has been changed from "start session"
+to "change session ID". This has no negative effects on existion integrations
+but will allow integration with other frameworks to take advantage of single
+sign-out if they switch to "true". phpCAS will then rename the session id
+(keeping all vars) and be able to single sign-out users.
+
+
+
+

include/limesurvey/admin/classes/phpCAS/docs/examples/config.example.php

@@ -0,0 +1,104 @@
+<?php
+
+/**
+ * The purpose of this central config file is configuring all examples
+ * in one place with minimal work for your working environment
+ * Just configure all the items in this config according to your environment
+ * and rename the file to config.php
+ *
+ * PHP Version 5
+ *
+ * @file     config.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @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
+ */
+
+$phpcas_path = '../../source/';
+
+///////////////////////////////////////
+// Basic Config of the phpCAS client //
+///////////////////////////////////////
+
+// Full Hostname of your CAS Server
+$cas_host = 'cas.example.com';
+
+// Context of the CAS Server
+$cas_context = '/cas';
+
+// Port of your CAS server. Normally for a https server it's 443
+$cas_port = 443;
+
+// Path to the ca chain that issued the cas server certificate
+$cas_server_ca_cert_path = '/path/to/cachain.pem';
+
+//////////////////////////////////////////
+// Advanced Config for special purposes //
+//////////////////////////////////////////
+
+// The "real" hosts of clustered cas server that send SAML logout messages
+// Assumes the cas server is load balanced across multiple hosts
+$cas_real_hosts = array('cas-real-1.example.com', 'cas-real-2.example.com');
+
+// Client config for cookie hardening
+$client_domain = '127.0.0.1';
+$client_path = 'phpcas';
+$client_secure = true;
+$client_httpOnly = true;
+$client_lifetime = 0;
+
+// Database config for PGT Storage
+$db = 'pgsql:host=localhost;dbname=phpcas';
+//$db = 'mysql:host=localhost;dbname=phpcas';
+$db_user = 'phpcasuser';
+$db_password = 'mysupersecretpass';
+$db_table = 'phpcastabel';
+$driver_options = '';
+
+///////////////////////////////////////////
+// End Configuration -- Don't edit below //
+///////////////////////////////////////////
+
+// Generating the URLS for the local cas example services for proxy testing
+if (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') {
+    $curbase = 'https://' . $_SERVER['SERVER_NAME'];
+} else {
+    $curbase = 'http://' . $_SERVER['SERVER_NAME'];
+}
+if ($_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443) {
+    $curbase .= ':' . $_SERVER['SERVER_PORT'];
+}
+
+$curdir = dirname($_SERVER['REQUEST_URI']) . "/";
+
+// CAS client nodes for rebroadcasting pgtIou/pgtId and logoutRequest
+$rebroadcast_node_1 = 'http://cas-client-1.example.com';
+$rebroadcast_node_2 = 'http://cas-client-2.example.com';
+
+// access to a single service
+$serviceUrl = $curbase . $curdir . 'example_service.php';
+// access to a second service
+$serviceUrl2 = $curbase . $curdir . 'example_service_that_proxies.php';
+
+$pgtBase = preg_quote(preg_replace('/^http:/', 'https:', $curbase . $curdir), '/');
+$pgtUrlRegexp = '/^' . $pgtBase . '.*$/';
+
+$cas_url = 'https://' . $cas_host;
+if ($cas_port != '443') {
+    $cas_url = $cas_url . ':' . $cas_port;
+}
+$cas_url = $cas_url . $cas_context;
+
+// Set the session-name to be unique to the current script so that the client script
+// doesn't share its session with a proxied script.
+// This is just useful when running the example code, but not normally.
+session_name(
+    'session_for:'
+    . preg_replace('/[^a-z0-9-]/i', '_', basename($_SERVER['SCRIPT_NAME']))
+);
+// Set an UTF-8 encoding header for internation characters (User attributes)
+header('Content-Type: text/html; charset=utf-8');
+?>

include/limesurvey/admin/classes/phpCAS/docs/examples/create_pgt_storage_db_table.php

@@ -0,0 +1,53 @@
+<?php
+
+/**
+ *  Script that generates a default table for PGT/PGTiou storage. This script
+ *  assumes a database with proper permissions exists and we are habe
+ *  permissions to create a table.
+ *  All database settings have to be set in the config.php file. Or the
+ *  CAS_PGTStorage_Db() options:
+ *  $db, $db_user, $db_password, $db_table, $driver_options
+ *  have to filled out directly. Option examples can be found in the
+ *  config.example.php
+ *
+ * PHP Version 5
+ *
+ * @file     create_pgt_storage_table.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+
+// Load the settings from the central config file
+require_once 'config.php';
+// Load the CAS lib
+require_once $phpcas_path . '/CAS.php';
+
+
+// Dummy client because we need a 'client' object
+$client = new CAS_Client(
+    CAS_VERSION_2_0, true, $cas_host, $cas_port, $cas_context, false
+);
+
+// Set the torage object
+$cas_obj = new CAS_PGTStorage_Db(
+    $client, $db, $db_user, $db_password, $db_table, $driver_options
+);
+$cas_obj->init();
+$cas_obj->createTable();
+?>
+<html>
+  <head>
+    <title>phpCAS PGT db storage table creation</title>
+    <link rel="stylesheet" type='text/css' href='example.css'/>
+  </head>
+<body>
+<div class="success">
+<?php
+echo 'Table <b>' . $db_table . '</b> successfully created in database <b>' . $db . '</b>';
+?>
+</div>
+</body>
+</html>

include/limesurvey/admin/classes/phpCAS/docs/examples/example.css

@@ -0,0 +1,10 @@
+.error {
+	border: 1px solid #aa0000;
+	color: #aa0000;
+	padding: 5px;
+}
+.success {
+	border: 1px solid #00aa00;
+	color: #00aa00;
+	padding: 5px;
+}

include/limesurvey/admin/classes/phpCAS/docs/examples/example_advanced_saml11.php

@@ -0,0 +1,82 @@
+<?php
+
+/**
+ * Advanced example for SAML with attributes and single logout
+ *
+ * PHP Version 5
+ *
+ * @file     example_advanced_saml11.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @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
+ */
+
+// Load the settings from the central config file
+require_once 'config.php';
+// Load the CAS lib
+require_once $phpcas_path . '/CAS.php';
+
+// Enable debugging
+phpCAS::setDebug();
+// Enable verbose error messages. Disable in production!
+phpCAS::setVerbose(true);
+
+// Initialize phpCAS
+phpCAS::client(SAML_VERSION_1_1, $cas_host, $cas_port, $cas_context);
+
+// For production use set the CA certificate that is the issuer of the cert
+// on the CAS server and uncomment the line below
+phpCAS::setCasServerCACert($cas_server_ca_cert_path);
+
+// For quick testing you can disable SSL validation of the CAS server.
+// THIS SETTING IS NOT RECOMMENDED FOR PRODUCTION.
+// VALIDATING THE CAS SERVER IS CRUCIAL TO THE SECURITY OF THE CAS PROTOCOL!
+// phpCAS::setNoCasServerValidation();
+
+// Handle SAML logout requests that emanate from the CAS host exclusively.
+// Failure to restrict SAML logout requests to authorized hosts could
+// allow denial of service attacks where at the least the server is
+// tied up parsing bogus XML messages.
+phpCAS::handleLogoutRequests(true, $cas_real_hosts);
+
+// Force CAS authentication on any page that includes this file
+phpCAS::forceAuthentication();
+
+// Some small code triggered by the logout button
+if (isset($_REQUEST['logout'])) {
+    phpCAS::logout();
+}
+?>
+<html>
+  <head>
+    <title>Advanced SAML 1.1 example</title>
+  </head>
+  <body>
+<h2>Advanced SAML 1.1 example</h2>
+<?php require 'script_info.php' ?>
+
+Authentication succeeded for user
+<strong><?php echo phpCAS::getUser(); ?></strong>.
+
+<h3>User Attributes</h3>
+<ul>
+<?php
+foreach (phpCAS::getAttributes() as $key => $value) {
+    if (is_array($value)) {
+        echo '<li>', $key, ':<ol>';
+        foreach ($value as $item) {
+            echo '<li><strong>', $item, '</strong></li>';
+        }
+        echo '</ol></li>';
+    } else {
+        echo '<li>', $key, ': <strong>', $value, '</strong></li>' . PHP_EOL;
+    }
+}
+    ?>
+</ul>
+<p><a href="?logout=">Logout</a></p>
+</body>
+</html>

include/limesurvey/admin/classes/phpCAS/docs/examples/example_custom_urls.php

@@ -0,0 +1,70 @@
+<?php
+
+/**
+ * Example for overriding validation urls
+ *
+ * PHP Version 5
+ *
+ * @file     example_custom_urls.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @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
+ */
+
+// Load the settings from the central config file
+require_once 'config.php';
+// Load the CAS lib
+require_once $phpcas_path . '/CAS.php';
+
+// Enable debugging
+phpCAS::setDebug();
+// Enable verbose error messages. Disable in production!
+phpCAS::setVerbose(true);
+
+// Initialize phpCAS
+phpCAS::client(CAS_VERSION_2_0, $cas_host, $cas_port, $cas_context);
+
+// For production use set the CA certificate that is the issuer of the cert
+// on the CAS server and uncomment the line below
+// phpCAS::setCasServerCACert($cas_server_ca_cert_path);
+
+// For quick testing you can disable SSL validation of the CAS server.
+// THIS SETTING IS NOT RECOMMENDED FOR PRODUCTION.
+// VALIDATING THE CAS SERVER IS CRUCIAL TO THE SECURITY OF THE CAS PROTOCOL!
+phpCAS::setNoCasServerValidation();
+
+// Override the validation url for any (ST and PT) CAS 2.0 validation
+phpCAS::setServerProxyValidateURL('https://cas.example.org:1443/proxyValidate');
+// Override the validation url for any CAS 1.0 validation
+//phpCAS::setServerServiceValidateURL('https://cas.example.org:1443/serviceValidate');
+//Override the validation url for any SAML11 validation
+//phpCAS::setServerSamlValidateURL('https://cas.example.org:1443/samlValidate');
+
+// force CAS authentication
+phpCAS::forceAuthentication();
+
+// at this step, the user has been authenticated by the CAS server
+// and the user's login name can be read with phpCAS::getUser().
+
+// logout if desired
+if (isset($_REQUEST['logout'])) {
+    phpCAS::logout();
+}
+
+// for this test, simply print that the authentication was successfull
+?>
+<html>
+  <head>
+    <title>phpCAS simple client</title>
+  </head>
+  <body>
+    <h1>Successfull Authentication!</h1>
+    <?php require 'script_info.php' ?>
+    <p>the user's login is <b><?php echo phpCAS::getUser(); ?></b>.</p>
+    <p>phpCAS version is <b><?php echo phpCAS::getVersion(); ?></b>.</p>
+    <p><a href="?logout=">Logout</a></p>
+  </body>
+</html>

include/limesurvey/admin/classes/phpCAS/docs/examples/example_gateway.php

@@ -0,0 +1,71 @@
+<?php
+
+/**
+ * Example that uses the CAS gateway feature
+ *
+ * PHP Version 5
+ *
+ * @file     example_gateway.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @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
+ */
+
+// Load the settings from the central config file
+require_once 'config.php';
+// Load the CAS lib
+require_once $phpcas_path . '/CAS.php';
+
+// Enable debugging
+phpCAS::setDebug();
+// Enable verbose error messages. Disable in production!
+phpCAS::setVerbose(true);
+
+// Initialize phpCAS
+phpCAS::client(CAS_VERSION_2_0, $cas_host, $cas_port, $cas_context);
+
+// For production use set the CA certificate that is the issuer of the cert
+// on the CAS server and uncomment the line below
+// phpCAS::setCasServerCACert($cas_server_ca_cert_path);
+
+// For quick testing you can disable SSL validation of the CAS server.
+// THIS SETTING IS NOT RECOMMENDED FOR PRODUCTION.
+// VALIDATING THE CAS SERVER IS CRUCIAL TO THE SECURITY OF THE CAS PROTOCOL!
+phpCAS::setNoCasServerValidation();
+
+if (isset($_REQUEST['logout'])) {
+    phpCAS::logout();
+}
+if (isset($_REQUEST['login'])) {
+    phpCAS::forceAuthentication();
+}
+
+// check CAS authentication
+$auth = phpCAS::checkAuthentication();
+
+?>
+<html>
+  <head>
+    <title>phpCAS simple client</title>
+  </head>
+  <body>
+<?php
+if ($auth) {
+    // for this test, simply print that the authentication was successfull
+        ?>
+    <h1>Successfull Authentication!</h1>
+    <?php include 'script_info.php' ?>
+    <p>the user's login is <b><?php echo phpCAS::getUser(); ?></b>.</p>
+    <p><a href="?logout=">Logout</a></p><?php
+} else {
+                                        ?>
+    <h1>Guest mode</h1>
+    <p><a href="?login=">Login</a></p><?php
+}
+                                      ?>
+    <p>phpCAS version is <b><?php echo phpCAS::getVersion(); ?></b>.</p>
+  </body>
+</html>

include/limesurvey/admin/classes/phpCAS/docs/examples/example_hardening.php

@@ -0,0 +1,85 @@
+<?php
+
+/**
+ * Advanced example for hardening the phpcas client
+ *
+ * PHP Version 5
+ *
+ * @file     example_hardening.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @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
+ */
+
+// Load the settings from the central config file
+require_once 'config.php';
+// Load the CAS lib
+require_once $phpcas_path . '/CAS.php';
+
+// Enable debugging
+phpCAS::setDebug();
+// Enable verbose error messages. Disable in production!
+phpCAS::setVerbose(false);
+
+// Harden session cookie to prevent some attacks on the cookie (e.g. XSS)
+session_set_cookie_params($client_lifetime, $client_path, $client_domain, $client_secure, $client_httpOnly);
+
+// Initialize phpCAS
+phpCAS::client(SAML_VERSION_1_1, $cas_host, $cas_port, $cas_context);
+
+// For production use set the CA certificate that is the issuer of the cert
+// on the CAS server and uncomment the line below
+phpCAS::setCasServerCACert($cas_server_ca_cert_path);
+
+// For quick testing you can disable SSL validation of the CAS server.
+// THIS SETTING IS NOT RECOMMENDED FOR PRODUCTION.
+// VALIDATING THE CAS SERVER IS CRUCIAL TO THE SECURITY OF THE CAS PROTOCOL!
+// phpCAS::setNoCasServerValidation();
+
+// Handle SAML logout requests that emanate from the CAS host exclusively.
+// Failure to restrict SAML logout requests to authorized hosts could
+// allow denial of service attacks where at the least the server is
+// tied up parsing bogus XML messages.
+phpCAS::handleLogoutRequests(true, $cas_real_hosts);
+
+// Force CAS authentication on any page that includes this file
+phpCAS::forceAuthentication();
+
+// Some small code triggered by the logout button
+if (isset($_REQUEST['logout'])) {
+    phpCAS::logout();
+}
+?>
+<html>
+  <head>
+    <title>Advanced SAML 1.1 example</title>
+  </head>
+  <body>
+<h2>Advanced SAML 1.1 example</h2>
+<?php require 'script_info.php' ?>
+
+Authentication succeeded for user
+<strong><?php echo phpCAS::getUser(); ?></strong>.
+
+<h3>User Attributes</h3>
+<ul>
+<?php
+foreach (phpCAS::getAttributes() as $key => $value) {
+    if (is_array($value)) {
+        echo '<li>', $key, ':<ol>';
+        foreach ($value as $item) {
+            echo '<li><strong>', $item, '</strong></li>';
+        }
+        echo '</ol></li>';
+    } else {
+        echo '<li>', $key, ': <strong>', $value, '</strong></li>' . PHP_EOL;
+    }
+}
+    ?>
+</ul>
+<p><a href="?logout=">Logout</a></p>
+</body>
+</html>

include/limesurvey/admin/classes/phpCAS/docs/examples/example_html.php

@@ -0,0 +1,76 @@
+<?php
+
+/**
+ * Example that changes html of phpcas messages
+ *
+ * PHP Version 5
+ *
+ * @file     example_html.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @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
+ */
+
+// Load the settings from the central config file
+require_once 'config.php';
+// Load the CAS lib
+require_once $phpcas_path . '/CAS.php';
+
+// Enable debugging
+phpCAS::setDebug();
+// Enable verbose error messages. Disable in production!
+phpCAS::setVerbose(true);
+
+// Initialize phpCAS
+phpCAS::client(CAS_VERSION_2_0, $cas_host, $cas_port, $cas_context);
+
+// For production use set the CA certificate that is the issuer of the cert
+// on the CAS server and uncomment the line below
+// phpCAS::setCasServerCACert($cas_server_ca_cert_path);
+
+// For quick testing you can disable SSL validation of the CAS server.
+// THIS SETTING IS NOT RECOMMENDED FOR PRODUCTION.
+// VALIDATING THE CAS SERVER IS CRUCIAL TO THE SECURITY OF THE CAS PROTOCOL!
+phpCAS::setNoCasServerValidation();
+
+// customize HTML output
+phpCAS::setHTMLHeader(
+    '<html>
+  <head>
+    <title>__TITLE__</title>
+  </head>
+  <body>
+  <h1>__TITLE__</h1>'
+);
+phpCAS::setHTMLFooter(
+    '<hr>
+    <address>
+      phpCAS __PHPCAS_VERSION__,
+      CAS __CAS_VERSION__ (__SERVER_BASE_URL__)
+    </address>
+  </body>
+</html>'
+);
+
+// force CAS authentication
+phpCAS::forceAuthentication();
+
+// at this step, the user has been authenticated by the CAS server
+// and the user's login name can be read with phpCAS::getUser().
+
+// for this test, simply print that the authentication was successfull
+?>
+<html>
+  <head>
+    <title>phpCAS simple client with HTML output customization</title>
+  </head>
+  <body>
+    <h1>Successfull Authentication!</h1>
+    <?php require 'script_info.php' ?>
+    <p>the user's login is <b><?php echo phpCAS::getUser(); ?></b>.</p>
+    <p>phpCAS version is <b><?php echo phpCAS::getVersion(); ?></b>.</p>
+  </body>
+</html>

include/limesurvey/admin/classes/phpCAS/docs/examples/example_lang.php

@@ -0,0 +1,63 @@
+<?php
+
+/**
+ *  Example that changes language of phpcas pages
+ *
+ * PHP Version 5
+ *
+ * @file     example_lang.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @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
+ */
+
+// Load the settings from the central config file
+require_once 'config.php';
+// Load the CAS lib
+require_once $phpcas_path . '/CAS.php';
+
+// Enable debugging
+phpCAS::setDebug();
+// Enable verbose error messages. Disable in production!
+phpCAS::setVerbose(true);
+
+// Initialize phpCAS
+phpCAS::client(CAS_VERSION_2_0, $cas_host, $cas_port, $cas_context);
+
+// For production use set the CA certificate that is the issuer of the cert
+// on the CAS server and uncomment the line below
+// phpCAS::setCasServerCACert($cas_server_ca_cert_path);
+
+// For quick testing you can disable SSL validation of the CAS server.
+// THIS SETTING IS NOT RECOMMENDED FOR PRODUCTION.
+// VALIDATING THE CAS SERVER IS CRUCIAL TO THE SECURITY OF THE CAS PROTOCOL!
+phpCAS::setNoCasServerValidation();
+
+// set the language to french
+phpCAS::setLang(PHPCAS_LANG_FRENCH);
+
+// force CAS authentication
+phpCAS::forceAuthentication();
+
+// at this step, the user has been authenticated by the CAS server
+// and the user's login name can be read with phpCAS::getUser().
+
+// moreover, a PGT was retrieved from the CAS server that will
+// permit to gain accesses to new services.
+
+// for this test, simply print that the authentication was successfull
+?>
+<html>
+  <head>
+    <title>Exemple d'internationalisation de phpCAS</title>
+  </head>
+  <body>
+    <h1>Authentification r&eacute;ussie&nbsp;!</h1>
+    <?php require 'script_info.php' ?>
+    <p>L'utilisateur connect&eacute; est <b><?php echo phpCAS::getUser(); ?></b>.</p>
+    <p>La version de phpCAS est <b><?php echo phpCAS::getVersion(); ?></b>.</p>
+  </body>
+</html>

include/limesurvey/admin/classes/phpCAS/docs/examples/example_logout.php

@@ -0,0 +1,64 @@
+<?php
+
+/**
+ *  Example for handling logout requests
+ *
+ * PHP Version 5
+ *
+ * @file     example_logout.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @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
+ */
+
+// Load the settings from the central config file
+require_once 'config.php';
+// Load the CAS lib
+require_once $phpcas_path . '/CAS.php';
+
+// Enable debugging
+phpCAS::setDebug();
+// Enable verbose error messages. Disable in production!
+phpCAS::setVerbose(true);
+
+// Initialize phpCAS
+phpCAS::client(CAS_VERSION_2_0, $cas_host, $cas_port, $cas_context);
+
+// For production use set the CA certificate that is the issuer of the cert
+// on the CAS server and uncomment the line below
+// phpCAS::setCasServerCACert($cas_server_ca_cert_path);
+
+// For quick testing you can disable SSL validation of the CAS server.
+// THIS SETTING IS NOT RECOMMENDED FOR PRODUCTION.
+// VALIDATING THE CAS SERVER IS CRUCIAL TO THE SECURITY OF THE CAS PROTOCOL!
+phpCAS::setNoCasServerValidation();
+
+// handle incoming logout requests
+phpCAS::handleLogoutRequests();
+
+// Or as an advanced featue handle SAML logout requests that emanate from the
+// CAS host exclusively.
+// Failure to restrict SAML logout requests to authorized hosts could
+// allow denial of service attacks where at the least the server is
+// tied up parsing bogus XML messages.
+// phpCAS::handleLogoutRequests(true, $cas_real_hosts);
+
+// force CAS authentication
+phpCAS::forceAuthentication();
+
+// for this test, simply print that the authentication was successfull
+?>
+<html>
+  <head>
+    <title>phpCAS simple client</title>
+  </head>
+  <body>
+    <h1>Successfull Authentication!</h1>
+    <?php require 'script_info.php' ?>
+    <p>the user's login is <b><?php echo phpCAS::getUser(); ?></b>.</p>
+    <p>phpCAS version is <b><?php echo phpCAS::getVersion(); ?></b>.</p>
+  </body>
+</html>

include/limesurvey/admin/classes/phpCAS/docs/examples/example_no_ssl_cn_validation.php

@@ -0,0 +1,68 @@
+<?php
+
+/**
+ *   Example for diabling SSL CN valdiation
+ *
+ * PHP Version 5
+ *
+ * @file     example_simple.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @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
+ */
+
+// Load the settings from the central config file
+require_once 'config.php';
+// Load the CAS lib
+require_once $phpcas_path . '/CAS.php';
+
+// Enable debugging
+phpCAS::setDebug();
+// Enable verbose error messages. Disable in production!
+phpCAS::setVerbose(true);
+
+// Initialize phpCAS
+phpCAS::client(CAS_VERSION_2_0, $cas_host, $cas_port, $cas_context);
+
+// For production use set the CA certificate that is the issuer of the cert
+// on the CAS server and uncomment the line below
+// phpCAS::setCasServerCACert($cas_server_ca_cert_path);
+
+// For quick testing you can disable SSL validation of the CAS server.
+// THIS SETTING IS NOT RECOMMENDED FOR PRODUCTION.
+// VALIDATING THE CAS SERVER IS CRUCIAL TO THE SECURITY OF THE CAS PROTOCOL!
+// phpCAS::setNoCasServerValidation();
+// You can also disable the validation of the certficate CN. This means the
+// certificate must be valid but the CN of the certificate must not match the
+// IP or hostname you are using to access the server
+phpCAS::setCasServerCACert($cas_server_ca_cert_path, false);
+
+
+// force CAS authentication
+phpCAS::forceAuthentication();
+
+// at this step, the user has been authenticated by the CAS server
+// and the user's login name can be read with phpCAS::getUser().
+
+// logout if desired
+if (isset($_REQUEST['logout'])) {
+	phpCAS::logout();
+}
+
+// for this test, simply print that the authentication was successfull
+?>
+<html>
+  <head>
+    <title>phpCAS simple client</title>
+  </head>
+  <body>
+    <h1>Successfull Authentication!</h1>
+    <?php require 'script_info.php' ?>
+    <p>the user's login is <b><?php echo phpCAS::getUser(); ?></b>.</p>
+    <p>phpCAS version is <b><?php echo phpCAS::getVersion(); ?></b>.</p>
+    <p><a href="?logout=">Logout</a></p>
+  </body>
+</html>

include/limesurvey/admin/classes/phpCAS/docs/examples/example_pgt_storage_db.php

@@ -0,0 +1,74 @@
+<?php
+
+/**
+ *  Example that changes the storage of the pgt tickets
+ *
+ * PHP Version 5
+ *
+ * @file     example_pgt_storage_db.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @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
+ */
+
+// Load the settings from the central config file
+require_once 'config.php';
+// Load the CAS lib
+require_once $phpcas_path . '/CAS.php';
+
+// Enable debugging
+phpCAS::setDebug();
+// Enable verbose error messages. Disable in production!
+phpCAS::setVerbose(true);
+
+// Initialize phpCAS
+phpCAS::proxy(CAS_VERSION_2_0, $cas_host, $cas_port, $cas_context);
+
+// For production use set the CA certificate that is the issuer of the cert
+// on the CAS server and uncomment the line below
+// phpCAS::setCasServerCACert($cas_server_ca_cert_path);
+
+// For quick testing you can disable SSL validation of the CAS server.
+// THIS SETTING IS NOT RECOMMENDED FOR PRODUCTION.
+// VALIDATING THE CAS SERVER IS CRUCIAL TO THE SECURITY OF THE CAS PROTOCOL!
+phpCAS::setNoCasServerValidation();
+
+// set PGT storage to file in plain format in the same directory as session files
+phpCAS::setPGTStorageDB($db, $db_user, $db_password, $db_table);
+
+// force CAS authentication
+phpCAS::forceAuthentication();
+
+// at this step, the user has been authenticated by the CAS server
+// and the user's login name can be read with phpCAS::getUser().
+
+// moreover, a PGT was retrieved from the CAS server that will
+// permit to gain accesses to new services.
+
+?>
+<html>
+  <head>
+    <title>phpCAS proxy example with PGT storage to a database</title>
+    <link rel="stylesheet" type='text/css' href='example.css'/>
+  </head>
+  <body>
+    <h1>phpCAS proxy example with PGT storage to file</h1>
+    <?php require 'script_info.php' ?>
+    <p>the user's login is <b><?php echo phpCAS::getUser(); ?></b>.</p>
+    <h2>Response from service <?php echo $serviceUrl; ?></h2>
+<?php
+flush();
+// call a service and change the color depending on the result
+if (phpCAS::serviceWeb($serviceUrl, $err_code, $output)) {
+    echo '<div class="success">';
+} else {
+    echo '<div class="error">';
+}
+echo $output;
+echo '</div>';
+                                                             ?>
+  </body>
+</html>

include/limesurvey/admin/classes/phpCAS/docs/examples/example_pgt_storage_file.php

@@ -0,0 +1,74 @@
+<?php
+
+/**
+*  Example that changes the storage of the pgt tickets to file
+*
+* PHP Version 5
+*
+* @file     example_pgt_storage_db.php
+* @category Authentication
+* @package  PhpCAS
+* @author   Joachim Fritschi <jfritschi@freenet.de>
+* @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
+*/
+
+// Load the settings from the central config file
+require_once 'config.php';
+// Load the CAS lib
+require_once $phpcas_path . '/CAS.php';
+
+// Enable debugging
+phpCAS::setDebug();
+// Enable verbose error messages. Disable in production!
+phpCAS::setVerbose(true);
+
+// Initialize phpCAS
+phpCAS::proxy(CAS_VERSION_2_0, $cas_host, $cas_port, $cas_context);
+
+// For production use set the CA certificate that is the issuer of the cert
+// on the CAS server and uncomment the line below
+// phpCAS::setCasServerCACert($cas_server_ca_cert_path);
+
+// For quick testing you can disable SSL validation of the CAS server.
+// THIS SETTING IS NOT RECOMMENDED FOR PRODUCTION.
+// VALIDATING THE CAS SERVER IS CRUCIAL TO THE SECURITY OF THE CAS PROTOCOL!
+phpCAS::setNoCasServerValidation();
+
+// set PGT storage to file in plain format in the same directory as session files
+phpCAS::setPGTStorageFile(session_save_path());
+
+// force CAS authentication
+phpCAS::forceAuthentication();
+
+// at this step, the user has been authenticated by the CAS server
+// and the user's login name can be read with phpCAS::getUser().
+
+// moreover, a PGT was retrieved from the CAS server that will
+// permit to gain accesses to new services.
+
+?>
+<html>
+  <head>
+    <title>phpCAS proxy example with PGT storage to file</title>
+    <link rel="stylesheet" type='text/css' href='example.css'/>
+  </head>
+  <body>
+    <h1>phpCAS proxy example with PGT storage to file</h1>
+    <?php require 'script_info.php' ?>
+    <p>the user's login is <b><?php echo phpCAS::getUser(); ?></b>.</p>
+    <h2>Response from service <?php echo $serviceUrl; ?></h2>
+<?php
+  flush();
+  // call a service and change the color depending on the result
+if ( phpCAS::serviceWeb($serviceUrl, $err_code, $output) ) {
+    echo '<div class="success">';
+} else {
+    echo '<div class="error">';
+}
+  echo $output;
+  echo '</div>';
+?>
+  </body>
+</html>

include/limesurvey/admin/classes/phpCAS/docs/examples/example_proxy_GET.php

@@ -0,0 +1,98 @@
+<?php
+
+/**
+ *  Example for a proxy that makes a GET request.
+ *
+ * PHP Version 5
+ *
+ * @file     example_proxy_GET.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @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
+ */
+
+// Load the settings from the central config file
+require_once 'config.php';
+// Load the CAS lib
+require_once $phpcas_path . '/CAS.php';
+
+// Enable debugging
+phpCAS::setDebug();
+// Enable verbose error messages. Disable in production!
+phpCAS::setVerbose(true);
+
+// Initialize phpCAS
+phpCAS::proxy(CAS_VERSION_2_0, $cas_host, $cas_port, $cas_context);
+
+// For production use set the CA certificate that is the issuer of the cert
+// on the CAS server and uncomment the line below
+// phpCAS::setCasServerCACert($cas_server_ca_cert_path);
+
+// For quick testing you can disable SSL validation of the CAS server.
+// THIS SETTING IS NOT RECOMMENDED FOR PRODUCTION.
+// VALIDATING THE CAS SERVER IS CRUCIAL TO THE SECURITY OF THE CAS PROTOCOL!
+phpCAS::setNoCasServerValidation();
+
+// force CAS authentication
+phpCAS::forceAuthentication();
+
+// at this step, the user has been authenticated by the CAS server
+// and the user's login name can be read with phpCAS::getUser().
+
+// moreover, a PGT was retrieved from the CAS server that will
+// permit to gain accesses to new services.
+
+?>
+<html>
+  <head>
+    <title>phpCAS proxy example #2</title>
+    <link rel="stylesheet" type='text/css' href='example.css'/>
+  </head>
+  <body>
+    <h1>phpCAS proxied proxy example</h1>
+    <?php require 'script_info.php' ?>
+    <p>the user's login is <b><?php echo phpCAS::getUser(); ?></b>.</p>
+    <h2>Response from service <?php echo $serviceUrl; ?></h2>
+<?php
+flush();
+
+// call a service and change the color depending on the result
+try {
+    $service = phpCAS::getProxiedService(PHPCAS_PROXIED_SERVICE_HTTP_GET);
+    $service->setUrl($serviceUrl);
+    $service->send();
+    if ($service->getResponseStatusCode() == 200) {
+        echo '<div class="success">';
+        echo $service->getResponseBody();
+        echo '</div>';
+    } else {
+        // The service responded with an error code 404, 500, etc.
+        echo '<div class="error">';
+        echo 'The service responded with a '
+        . $service->getResponseStatusCode() . ' error.';
+        echo '</div>';
+    }
+} catch (CAS_ProxyTicketException $e) {
+    if ($e->getCode() == PHPCAS_SERVICE_PT_FAILURE) {
+        echo '<div class="error">';
+        echo "Your login has timed out. You need to log in again.";
+        echo '</div>';
+    } else {
+        // Other proxy ticket errors are from bad request format (shouldn't happen)
+        // or CAS server failure (unlikely) so lets just stop if we hit those.
+        throw $e;
+    }
+} catch (CAS_ProxiedService_Exception $e) {
+    // Something prevented the service request from being sent or received.
+    // We didn't even get a valid error response (404, 500, etc), so this
+    // might be caused by a network error or a DNS resolution failure.
+    // We could handle it in some way, but for now we will just stop.
+    throw $e;
+}
+
+                                                             ?>
+  </body>
+</html>

include/limesurvey/admin/classes/phpCAS/docs/examples/example_proxy_POST.php

@@ -0,0 +1,103 @@
+<?php
+
+/**
+ *  Example for a proxy that makes a POST request.
+ *
+ * PHP Version 5
+ *
+ * @file     example_proxy_POST.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @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
+ */
+
+// Load the settings from the central config file
+require_once 'config.php';
+// Load the CAS lib
+require_once $phpcas_path . '/CAS.php';
+
+// Enable debugging
+phpCAS::setDebug();
+// Enable verbose error messages. Disable in production!
+phpCAS::setVerbose(true);
+
+// Initialize phpCAS
+phpCAS::proxy(CAS_VERSION_2_0, $cas_host, $cas_port, $cas_context);
+
+// For production use set the CA certificate that is the issuer of the cert
+// on the CAS server and uncomment the line below
+// phpCAS::setCasServerCACert($cas_server_ca_cert_path);
+
+// For quick testing you can disable SSL validation of the CAS server.
+// THIS SETTING IS NOT RECOMMENDED FOR PRODUCTION.
+// VALIDATING THE CAS SERVER IS CRUCIAL TO THE SECURITY OF THE CAS PROTOCOL!
+phpCAS::setNoCasServerValidation();
+
+// force CAS authentication
+phpCAS::forceAuthentication();
+
+// at this step, the user has been authenticated by the CAS server
+// and the user's login name can be read with phpCAS::getUser().
+
+// moreover, a PGT was retrieved from the CAS server that will
+// permit to gain accesses to new services.
+
+$serviceUrl = $curbase . $curdir . 'example_service_POST.php';
+
+?>
+<html>
+  <head>
+    <title>phpCAS proxy POST example</title>
+    <link rel="stylesheet" type='text/css' href='example.css'/>
+  </head>
+  <body>
+    <h1>phpCAS proxy POST example</h1>
+    <?php require 'script_info.php' ?>
+    <p>the user's login is <b><?php echo phpCAS::getUser(); ?></b>.</p>
+    <h2>Response from service <?php echo $serviceUrl; ?></h2>
+<?php
+flush();
+
+// call a service and change the color depending on the result
+try {
+    $service = phpCAS::getProxiedService(PHPCAS_PROXIED_SERVICE_HTTP_POST);
+    $service->setUrl($serviceUrl);
+    $service->setContentType('application/x-www-form-urlencoded');
+    $service->setBody('favorite_color=blue');
+    $service->send();
+    if ($service->getResponseStatusCode() == 200) {
+        echo '<div class="success">';
+        echo $service->getResponseBody();
+        echo '</div>';
+    } else {
+        // The service responded with an error code 404, 500, etc.
+        echo '<div class="error">';
+        echo 'The service responded with a '
+        . $service->getResponseStatusCode() . ' error.';
+        echo $service->getResponseBody();
+        echo '</div>';
+    }
+} catch (CAS_ProxyTicketException $e) {
+    if ($e->getCode() == PHPCAS_SERVICE_PT_FAILURE) {
+        echo '<div class="error">';
+        echo "Your login has timed out. You need to log in again.";
+        echo '</div>';
+    } else {
+        // Other proxy ticket errors are from bad request format (shouldn't happen)
+        // or CAS server failure (unlikely) so lets just stop if we hit those.
+        throw $e;
+    }
+} catch (CAS_ProxiedService_Exception $e) {
+    // Something prevented the service request from being sent or received.
+    // We didn't even get a valid error response (404, 500, etc), so this
+    // might be caused by a network error or a DNS resolution failure.
+    // We could handle it in some way, but for now we will just stop.
+    throw $e;
+}
+
+                                                             ?>
+  </body>
+</html>

include/limesurvey/admin/classes/phpCAS/docs/examples/example_proxy_rebroadcast.php

@@ -0,0 +1,63 @@
+<?php
+
+/**
+ *  Example for a proxy that rebroadcasts all PGTs to different servers in the
+ *  cluster
+ *
+ * PHP Version 5
+ *
+ * @file     example_proxy_rebroadcast.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @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
+ */
+
+// Load the settings from the central config file
+require_once 'config.php';
+// Load the CAS lib
+require_once $phpcas_path . '/CAS.php';
+
+// Enable debugging
+phpCAS::setDebug();
+// Enable verbose error messages. Disable in production!
+phpCAS::setVerbose(true);
+
+// Initialize phpCAS
+phpCAS::proxy(CAS_VERSION_2_0, $cas_host, $cas_port, $cas_context);
+
+// For production use set the CA certificate that is the issuer of the cert
+// on the CAS server and uncomment the line below
+// phpCAS::setCasServerCACert($cas_server_ca_cert_path);
+
+// For quick testing you can disable SSL validation of the CAS server.
+// THIS SETTING IS NOT RECOMMENDED FOR PRODUCTION.
+// VALIDATING THE CAS SERVER IS CRUCIAL TO THE SECURITY OF THE CAS PROTOCOL!
+phpCAS::setNoCasServerValidation();
+
+// Set the nodes for rebroadcasting pgtIou/pgtId and logoutRequest
+phpCAS::addRebroadcastNode($rebroadcast_node_1);
+phpCAS::addRebroadcastNode($rebroadcast_node_2);
+
+// handle incoming logout requests
+phpCAS::handleLogoutRequests();
+
+// force CAS authentication
+phpCAS::forceAuthentication();
+
+// at this step, the user has been authenticated by the CAS server
+// and the user's login name can be read with phpCAS::getUser().
+
+?>
+<html>
+  <head>
+    <title>phpCAS proxy rebroadcast example</title>
+    <link rel="stylesheet" type='text/css' href='example.css'/>
+  </head>
+  <body>
+    <h1>phpCAS proxy rebroadcast example</h1>
+    <p>the user's login is <b><?php echo phpCAS::getUser(); ?></b>.</p>
+  </body>
+</html>

include/limesurvey/admin/classes/phpCAS/docs/examples/example_proxy_serviceWeb.php

@@ -0,0 +1,71 @@
+<?php
+
+/**
+ * Example for a proxy with session usage
+ *
+ * PHP Version 5
+ *
+ * @file     example_proxy_GET.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @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
+ */
+
+// Load the settings from the central config file
+require_once 'config.php';
+// Load the CAS lib
+require_once $phpcas_path . '/CAS.php';
+
+// Enable debugging
+phpCAS::setDebug();
+// Enable verbose error messages. Disable in production!
+phpCAS::setVerbose(true);
+
+// Initialize phpCAS
+phpCAS::proxy(CAS_VERSION_2_0, $cas_host, $cas_port, $cas_context);
+
+// For production use set the CA certificate that is the issuer of the cert
+// on the CAS server and uncomment the line below
+// phpCAS::setCasServerCACert($cas_server_ca_cert_path);
+
+// For quick testing you can disable SSL validation of the CAS server.
+// THIS SETTING IS NOT RECOMMENDED FOR PRODUCTION.
+// VALIDATING THE CAS SERVER IS CRUCIAL TO THE SECURITY OF THE CAS PROTOCOL!
+phpCAS::setNoCasServerValidation();
+
+// force CAS authentication
+phpCAS::forceAuthentication();
+
+// at this step, the user has been authenticated by the CAS server
+// and the user's login name can be read with phpCAS::getUser().
+
+// moreover, a PGT was retrieved from the CAS server that will
+// permit to gain accesses to new services.
+
+?>
+<html>
+  <head>
+    <title>phpCAS proxied proxy example (with sessioning)</title>
+    <link rel="stylesheet" type='text/css' href='example.css'/>
+  </head>
+  <body>
+    <h1>phpCAS proxied proxy example (with sessioning)</h1>
+    <?php require 'script_info.php' ?>
+    <p>the user's login is <b><?php echo phpCAS::getUser(); ?></b>.</p>
+    <h2>Response from service <?php echo $serviceUrl; ?></h2>
+<?php
+flush();
+// call a service and change the color depending on the result
+if (phpCAS::serviceWeb($serviceUrl, $err_code, $output)) {
+    echo '<div class="success">';
+} else {
+    echo '<div class="error">';
+}
+echo $output;
+echo '</div>';
+                                                             ?>
+  </body>
+</html>

include/limesurvey/admin/classes/phpCAS/docs/examples/example_proxy_serviceWeb_chaining.php

@@ -0,0 +1,71 @@
+<?php
+
+/**
+ *  Example for a proxy with session usage
+ *
+ * PHP Version 5
+ *
+ * @file     example_proxy_serviceWeb_chaining.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @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
+ */
+
+// Load the settings from the central config file
+require_once 'config.php';
+// Load the CAS lib
+require_once $phpcas_path . '/CAS.php';
+
+// Enable debugging
+phpCAS::setDebug();
+// Enable verbose error messages. Disable in production!
+phpCAS::setVerbose(true);
+
+// Initialize phpCAS
+phpCAS::proxy(CAS_VERSION_2_0, $cas_host, $cas_port, $cas_context);
+
+// For production use set the CA certificate that is the issuer of the cert
+// on the CAS server and uncomment the line below
+// phpCAS::setCasServerCACert($cas_server_ca_cert_path);
+
+// For quick testing you can disable SSL validation of the CAS server.
+// THIS SETTING IS NOT RECOMMENDED FOR PRODUCTION.
+// VALIDATING THE CAS SERVER IS CRUCIAL TO THE SECURITY OF THE CAS PROTOCOL!
+phpCAS::setNoCasServerValidation();
+
+// force CAS authentication
+phpCAS::forceAuthentication();
+
+// at this step, the user has been authenticated by the CAS server
+// and the user's login name can be read with phpCAS::getUser().
+
+// moreover, a PGT was retrieved from the CAS server that will
+// permit to gain accesses to new services.
+
+?>
+<html>
+  <head>
+    <title>phpCAS proxy example #2</title>
+    <link rel="stylesheet" type='text/css' href='example.css'/>
+  </head>
+  <body>
+    <h1>phpCAS proxied proxy example</h1>
+    <?php require 'script_info.php' ?>
+    <p>the user's login is <b><?php echo phpCAS::getUser(); ?></b>.</p>
+    <h2>Response from service <?php echo $serviceUrl2; ?></h2>
+<?php
+flush();
+// call a service and change the color depending on the result
+if (phpCAS::serviceWeb($serviceUrl2, $err_code, $output)) {
+    echo '<div class="success">';
+} else {
+    echo '<div class="error">';
+}
+echo $output;
+echo '</div>';
+                                                              ?>
+  </body>
+</html>

include/limesurvey/admin/classes/phpCAS/docs/examples/example_renew.php

@@ -0,0 +1,72 @@
+<?php
+
+/**
+ *   Example for a simple cas 2.0 client
+ *
+ * PHP Version 5
+ *
+ * @file     example_renew.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @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
+ */
+
+// Load the settings from the central config file
+require_once 'config.php';
+// Load the CAS lib
+require_once $phpcas_path . '/CAS.php';
+
+// Enable debugging
+phpCAS::setDebug();
+// Enable verbose error messages. Disable in production!
+phpCAS::setVerbose(true);
+
+// Initialize phpCAS
+phpCAS::client(CAS_VERSION_2_0, $cas_host, $cas_port, $cas_context);
+
+// For production use set the CA certificate that is the issuer of the cert
+// on the CAS server and uncomment the line below
+// phpCAS::setCasServerCACert($cas_server_ca_cert_path);
+
+// For quick testing you can disable SSL validation of the CAS server.
+// THIS SETTING IS NOT RECOMMENDED FOR PRODUCTION.
+// VALIDATING THE CAS SERVER IS CRUCIAL TO THE SECURITY OF THE CAS PROTOCOL!
+phpCAS::setNoCasServerValidation();
+
+// force CAS authentication
+phpCAS::renewAuthentication();
+
+// at this step, the user has been authenticated by the CAS server
+// and the user's login name can be read with phpCAS::getUser().
+
+// logout if desired
+if (isset($_REQUEST['logout'])) {
+    phpCAS::logout();
+}
+
+// logout if desired
+if (isset($_REQUEST['session'])) {
+    session_unset();
+    session_destroy();
+    unset($_REQUEST['session']);
+    header("Location: ".$_SERVER['PHP_SELF']);
+}
+
+// for this test, simply print that the authentication was successfull
+?>
+<html>
+  <head>
+    <title>phpCAS simple client</title>
+  </head>
+  <body>
+    <h1>Successfull Authentication!</h1>
+    <?php require 'script_info.php' ?>
+    <p>the user's login is <b><?php echo phpCAS::getUser(); ?></b>.</p>
+    <p>phpCAS version is <b><?php echo phpCAS::getVersion(); ?></b>.</p>
+    <p><a href="?logout=">Logout</a></p>
+    <p><a href="?session=">Kill local Session</a></p>
+  </body>
+</html>

include/limesurvey/admin/classes/phpCAS/docs/examples/example_service.php

@@ -0,0 +1,96 @@
+<?php
+
+/**
+ * Example for proxied service with session support
+ *
+ * PHP Version 5
+ *
+ * @file     example_service.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @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
+ */
+
+// Load the settings from the central config file
+require_once 'config.php';
+// Load the CAS lib
+require_once $phpcas_path . '/CAS.php';
+
+// Enable debugging
+phpCAS::setDebug();
+// Enable verbose error messages. Disable in production!
+phpCAS::setVerbose(true);
+
+// Initialize phpCAS
+phpCAS::client(CAS_VERSION_2_0, $cas_host, $cas_port, $cas_context);
+
+// For production use set the CA certificate that is the issuer of the cert
+// on the CAS server and uncomment the line below
+// phpCAS::setCasServerCACert($cas_server_ca_cert_path);
+
+// For quick testing you can disable SSL validation of the CAS server.
+// THIS SETTING IS NOT RECOMMENDED FOR PRODUCTION.
+// VALIDATING THE CAS SERVER IS CRUCIAL TO THE SECURITY OF THE CAS PROTOCOL!
+phpCAS::setNoCasServerValidation();
+
+// If you want your service to be proxied you have to enable it (default
+// disabled) and define an accepable list of proxies that are allowed to
+// proxy your service.
+//
+// Add each allowed proxy definition object. For the normal CAS_ProxyChain
+// class, the constructor takes an array of proxies to match. The list is in
+// reverse just as seen from the service. Proxies have to be defined in reverse
+// from the service to the user. If a user hits service A and gets proxied via
+// B to service C the list of acceptable on C would be array(B,A). The definition
+// of an individual proxy can be either a string or a regexp (preg_match is used)
+// that will be matched against the proxy list supplied by the cas server
+// when validating the proxy tickets. The strings are compared starting from
+// the beginning and must fully match with the proxies in the list.
+// Example:
+// 		phpCAS::allowProxyChain(new CAS_ProxyChain(array(
+// 				'https://app.example.com/'
+// 			)));
+// 		phpCAS::allowProxyChain(new CAS_ProxyChain(array(
+// 				'/^https:\/\/app[0-9]\.example\.com\/rest\//',
+// 				'http://client.example.com/'
+// 			)));
+phpCAS::allowProxyChain(new CAS_ProxyChain(array($pgtUrlRegexp)));
+phpCAS::allowProxyChain(
+    new CAS_ProxyChain(
+        array('/^' . $pgtBase . 'example_service_that_proxies.php$/',
+            '/^' . $pgtBase . 'example_proxy_serviceWeb_chaining.php$/'
+        )
+    )
+);
+
+// For quick testing or in certain production screnarios you might want to
+// allow allow any other valid service to proxy your service. To do so, add
+// the "Any" chain:
+// 		phpcas::allowProxyChain(new CAS_ProxyChain_Any);
+// THIS SETTING IS HOWEVER NOT RECOMMENDED FOR PRODUCTION AND HAS SECURITY
+// IMPLICATIONS: YOU ARE ALLOWING ANY SERVICE TO ACT ON BEHALF OF A USER
+// ON THIS SERVICE.
+//phpcas::allowProxyChain(new CAS_ProxyChain_Any);
+
+// force CAS authentication
+phpCAS::forceAuthentication();
+
+print '<h1>I am a service that can be proxied.</h1>';
+
+// at this step, the user has been authenticated by the CAS server
+// and the user's login name can be read with phpCAS::getUser().
+require 'script_info.php';
+
+// for this test, simply print that the authentication was successfull
+echo '<p>The user\'s login is <b>' . phpCAS::getUser() . '</b>.</p>';
+
+// increment the number of requests of the session and print it
+if (!isset($_SESSION['n'])) {
+    $_SESSION['n'] = 0;
+}
+echo '<p>request #' . (++$_SESSION['n']) . '</p>';
+
+?>

include/limesurvey/admin/classes/phpCAS/docs/examples/example_service_POST.php

@@ -0,0 +1,105 @@
+<?php
+
+/**
+ *   Example for proxied service with session support and POST support
+ *
+ * PHP Version 5
+ *
+ * @file     example_service_POST.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @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
+ */
+
+// Load the settings from the central config file
+require_once 'config.php';
+// Load the CAS lib
+require_once $phpcas_path . '/CAS.php';
+
+// Enable debugging
+phpCAS::setDebug();
+// Enable verbose error messages. Disable in production!
+phpCAS::setVerbose(true);
+
+// Initialize phpCAS
+phpCAS::client(CAS_VERSION_2_0, $cas_host, $cas_port, $cas_context);
+
+// For production use set the CA certificate that is the issuer of the cert
+// on the CAS server and uncomment the line below
+// phpCAS::setCasServerCACert($cas_server_ca_cert_path);
+
+// For quick testing you can disable SSL validation of the CAS server.
+// THIS SETTING IS NOT RECOMMENDED FOR PRODUCTION.
+// VALIDATING THE CAS SERVER IS CRUCIAL TO THE SECURITY OF THE CAS PROTOCOL!
+phpCAS::setNoCasServerValidation();
+
+// If you want your service to be proxied you have to enable it (default
+// disabled) and define an accepable list of proxies that are allowed to
+// proxy your service.
+//
+// Add each allowed proxy definition object. For the normal CAS_ProxyChain
+// class, the constructor takes an array of proxies to match. The list is in
+// reverse just as seen from the service. Proxies have to be defined in reverse
+// from the service to the user. If a user hits service A and gets proxied via
+// B to service C the list of acceptable on C would be array(B,A). The definition
+// of an individual proxy can be either a string or a regexp (preg_match is used)
+// that will be matched against the proxy list supplied by the cas server
+// when validating the proxy tickets. The strings are compared starting from
+// the beginning and must fully match with the proxies in the list.
+// Example:
+// 		phpCAS::allowProxyChain(new CAS_ProxyChain(array(
+// 				'https://app.example.com/'
+// 			)));
+// 		phpCAS::allowProxyChain(new CAS_ProxyChain(array(
+// 				'/^https:\/\/app[0-9]\.example\.com\/rest\//',
+// 				'http://client.example.com/'
+// 			)));
+phpCAS::allowProxyChain(new CAS_ProxyChain(array($pgtUrlRegexp)));
+
+// For quick testing or in certain production screnarios you might want to
+// allow allow any other valid service to proxy your service. To do so, add
+// the "Any" chain:
+// 		phpcas::allowProxyChain(new CAS_ProxyChain_Any);
+// THIS SETTING IS HOWEVER NOT RECOMMENDED FOR PRODUCTION AND HAS SECURITY
+// IMPLICATIONS: YOU ARE ALLOWING ANY SERVICE TO ACT ON BEHALF OF A USER
+// ON THIS SERVICE.
+//phpcas::allowProxyChain(new CAS_ProxyChain_Any);
+
+// force CAS authentication
+phpCAS::forceAuthentication();
+
+if ($_SERVER['REQUEST_METHOD'] != 'POST') {
+    header('HTTP/1.1 400 Bad Request');
+    print
+        "<h1>I only respond to POST requests. This is a "
+        . $_SERVER['REQUEST_METHOD'] . " request.</h1>";
+    exit;
+}
+if (empty($_POST['favorite_color'])) {
+    header('HTTP/1.1 400 Bad Request');
+    print '<h1>You must post a <strong>favorite_color</strong>.</h1>';
+    exit;
+}
+
+print '<h1>I am a service that responds to POST requests.</h1>';
+
+// at this step, the user has been authenticated by the CAS server
+// and the user's login name can be read with phpCAS::getUser().
+require 'script_info.php';
+
+// for this test, simply print that the authentication was successfull
+echo '<p>The user\'s login is <b>' . phpCAS::getUser() . '</b>.</p>';
+
+print
+    '<h1>Your favorite color is ' . htmlentities($_POST['favorite_color'])
+    . '</h1>';
+
+// increment the number of requests of the session and print it
+if (!isset($_SESSION['n'])) {
+    $_SESSION['n'] = 0;
+}
+echo '<p>request #' . (++$_SESSION['n']) . '</p>';
+

include/limesurvey/admin/classes/phpCAS/docs/examples/example_service_that_proxies.php

@@ -0,0 +1,106 @@
+<?php
+
+/**
+ *  Example for a proxied proxy
+ *
+ * PHP Version 5
+ *
+ * @file     example_service_that_proxies.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @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
+ */
+
+// Load the settings from the central config file
+require_once 'config.php';
+// Load the CAS lib
+require_once $phpcas_path . '/CAS.php';
+
+// Enable debugging
+phpCAS::setDebug();
+// Enable verbose error messages. Disable in production!
+phpCAS::setVerbose(true);
+
+// Initialize phpCAS
+phpCAS::proxy(CAS_VERSION_2_0, $cas_host, $cas_port, $cas_context);
+
+// For production use set the CA certificate that is the issuer of the cert
+// on the CAS server and uncomment the line below
+// phpCAS::setCasServerCACert($cas_server_ca_cert_path);
+
+// For quick testing you can disable SSL validation of the CAS server.
+// THIS SETTING IS NOT RECOMMENDED FOR PRODUCTION.
+// VALIDATING THE CAS SERVER IS CRUCIAL TO THE SECURITY OF THE CAS PROTOCOL!
+phpCAS::setNoCasServerValidation();
+
+// If you want your service to be proxied you have to enable it (default
+// disabled) and define an accepable list of proxies that are allowed to
+// proxy your service.
+//
+// Add each allowed proxy definition object. For the normal CAS_ProxyChain
+// class, the constructor takes an array of proxies to match. The list is in
+// reverse just as seen from the service. Proxies have to be defined in reverse
+// from the service to the user. If a user hits service A and gets proxied via
+// B to service C the list of acceptable on C would be array(B,A). The definition
+// of an individual proxy can be either a string or a regexp (preg_match is used)
+// that will be matched against the proxy list supplied by the cas server
+// when validating the proxy tickets. The strings are compared starting from
+// the beginning and must fully match with the proxies in the list.
+// Example:
+// 		phpCAS::allowProxyChain(new CAS_ProxyChain(array(
+// 				'https://app.example.com/'
+// 			)));
+// 		phpCAS::allowProxyChain(new CAS_ProxyChain(array(
+// 				'/^https:\/\/app[0-9]\.example\.com\/rest\//',
+// 				'http://client.example.com/'
+// 			)));
+phpCAS::allowProxyChain(new CAS_ProxyChain(array($pgtUrlRegexp)));
+
+// For quick testing or in certain production screnarios you might want to
+// allow allow any other valid service to proxy your service. To do so, add
+// the "Any" chain:
+// 		phpcas::allowProxyChain(new CAS_ProxyChain_Any);
+// THIS SETTING IS HOWEVER NOT RECOMMENDED FOR PRODUCTION AND HAS SECURITY
+// IMPLICATIONS: YOU ARE ALLOWING ANY SERVICE TO ACT ON BEHALF OF A USER
+// ON THIS SERVICE.
+//phpcas::allowProxyChain(new CAS_ProxyChain_Any);
+
+// force CAS authentication
+phpCAS::forceAuthentication();
+
+// at this step, the user has been authenticated by the CAS server
+// and the user's login name can be read with phpCAS::getUser().
+
+// moreover, a PGT was retrieved from the CAS server that will
+// permit to gain accesses to new services.
+
+
+
+?>
+<html>
+  <head>
+    <title>phpCAS proxied proxy service example</title>
+    <link rel="stylesheet" type='text/css' href='example.css'/>
+  </head>
+  <body>
+    <h1>I am a service that can be proxied. In turn, I proxy another service.</h1>
+    <?php require 'script_info.php' ?>
+    <p>the user's login is <b><?php echo phpCAS::getUser(); ?></b>.</p>
+    <h2>Response from service <?php echo $serviceUrl; ?></h2>
+<?php
+  flush();
+  // call a service and change the color depending on the result
+if ( phpCAS::serviceWeb($serviceUrl, $err_code, $output) ) {
+    echo '<div class="success">';
+} else {
+    echo '<div class="error">';
+}
+  echo $output;
+  echo '</div>';
+?>
+  </body>
+</html>
+

include/limesurvey/admin/classes/phpCAS/docs/examples/example_simple.php

@@ -0,0 +1,63 @@
+<?php
+
+/**
+ *   Example for a simple cas 2.0 client
+ *
+ * PHP Version 5
+ *
+ * @file     example_simple.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @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
+ */
+
+// Load the settings from the central config file
+require_once 'config.php';
+// Load the CAS lib
+require_once $phpcas_path . '/CAS.php';
+
+// Enable debugging
+phpCAS::setDebug();
+// Enable verbose error messages. Disable in production!
+phpCAS::setVerbose(true);
+
+// Initialize phpCAS
+phpCAS::client(CAS_VERSION_2_0, $cas_host, $cas_port, $cas_context);
+
+// For production use set the CA certificate that is the issuer of the cert
+// on the CAS server and uncomment the line below
+// phpCAS::setCasServerCACert($cas_server_ca_cert_path);
+
+// For quick testing you can disable SSL validation of the CAS server.
+// THIS SETTING IS NOT RECOMMENDED FOR PRODUCTION.
+// VALIDATING THE CAS SERVER IS CRUCIAL TO THE SECURITY OF THE CAS PROTOCOL!
+phpCAS::setNoCasServerValidation();
+
+// force CAS authentication
+phpCAS::forceAuthentication();
+
+// at this step, the user has been authenticated by the CAS server
+// and the user's login name can be read with phpCAS::getUser().
+
+// logout if desired
+if (isset($_REQUEST['logout'])) {
+	phpCAS::logout();
+}
+
+// for this test, simply print that the authentication was successfull
+?>
+<html>
+  <head>
+    <title>phpCAS simple client</title>
+  </head>
+  <body>
+    <h1>Successfull Authentication!</h1>
+    <?php require 'script_info.php' ?>
+    <p>the user's login is <b><?php echo phpCAS::getUser(); ?></b>.</p>
+    <p>phpCAS version is <b><?php echo phpCAS::getVersion(); ?></b>.</p>
+    <p><a href="?logout=">Logout</a></p>
+  </body>
+</html>

include/limesurvey/admin/classes/phpCAS/docs/examples/script_info.php

@@ -0,0 +1,20 @@
+<?php
+/**
+ *  Small script to add some info about the example script that is running.
+ *  Adds some info that makes it easier to distinguish different proxy sessions
+ *
+ * PHP Version 5
+ *
+ * @file     script_info.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Joachim Fritschi <jfritschi@freenet.de>
+ * @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
+ */ ?>
+    <dl style='border: 1px dotted; padding: 5px;'>
+      <dt>Current script</dt><dd><?php print basename($_SERVER['SCRIPT_NAME']); ?></dd>
+      <dt>session_name():</dt><dd> <?php print session_name(); ?></dd>
+      <dt>session_id():</dt><dd> <?php print session_id(); ?></dd>
+    </dl>

include/limesurvey/admin/classes/phpCAS/docs/index.html

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
+"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+  <head>
+    <title>phpCAS</title>
+  </head>
+  <body>
+	<p><img src="images/phpcas.png" width="191" height="68"/></p>
+	<p>phpCAS documentation is hosted at <a href="https://wiki.jasig.org/display/CASC/phpCAS">https://wiki.jasig.org/display/CASC/phpCAS</a>.</p>
+	<ul>
+	  <li><a href="examples">examples</a></li>
+	  <li><a href="http://downloads.jasig.org/cas-clients/php/1.3.4/docs/api/">source documentation</a></li>
+  </ul>
+	<p><img src="images/esup-portail.png" width="182" height="68"/> <img src="images/jasig.png" width="169" height="87"/></p>
+	<p>&nbsp;</p>
+  </body>
+</html>
+