v. 0.6.3 from http://dev.piwik.org/trac/ticket/598
authorRadek Czajka <radekczajka@nowoczesnapolska.org.pl>
Wed, 5 Mar 2014 08:54:34 +0000 (09:54 +0100)
committerRadek Czajka <radekczajka@nowoczesnapolska.org.pl>
Wed, 5 Mar 2014 08:54:34 +0000 (09:54 +0100)
21 files changed:
Auth.php [new file with mode: 0644]
CAS/CAS.php [new file with mode: 0644]
CAS/CAS/PGTStorage/pgt-file.php [new file with mode: 0644]
CAS/CAS/PGTStorage/pgt-main.php [new file with mode: 0644]
CAS/CAS/client.php [new file with mode: 0644]
CAS/CAS/domxml-php4-to-php5.php [new file with mode: 0644]
CAS/CAS/languages/catalan.php [new file with mode: 0644]
CAS/CAS/languages/english.php [new file with mode: 0644]
CAS/CAS/languages/french.php [new file with mode: 0644]
CAS/CAS/languages/german.php [new file with mode: 0644]
CAS/CAS/languages/greek.php [new file with mode: 0644]
CAS/CAS/languages/japanese.php [new file with mode: 0644]
CAS/CAS/languages/languages.php [new file with mode: 0644]
CAS/CAS/languages/spanish.php [new file with mode: 0644]
CASLogin.php [new file with mode: 0644]
CHANGELOG [new file with mode: 0644]
Controller.php [new file with mode: 0644]
README [new file with mode: 0644]
templates/header.tpl [new file with mode: 0644]
templates/login.css [new file with mode: 0644]
templates/login.tpl [new file with mode: 0644]

diff --git a/Auth.php b/Auth.php
new file mode 100644 (file)
index 0000000..f1a6e2b
--- /dev/null
+++ b/Auth.php
@@ -0,0 +1,199 @@
+<?php
+/**
+ * Piwik - Open source web analytics
+ * 
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html Gpl v3 or later
+ * @version $Id:$
+ * 
+ * @package Piwik_CASLogin
+ */
+
+/**
+ * Class that implements an authentication mechanism via CAS (Central Authentication Services)
+ *
+ * @package Piwik_CASLogin
+ */
+class Piwik_CASLogin_Auth implements Piwik_Auth
+{
+       protected $login = null;
+       protected $token_auth = null;
+
+       public function getName()
+       {
+               return 'CASLogin';
+       }
+
+       public function authenticate()
+       {
+               $user = '';
+               $rootLogin = Zend_Registry::get('config')->superuser->login;
+
+               $additionalSuperUsers = array();
+               $oAdditionalSuperUsers = Zend_Registry::get('config')->caslogin->additionalsuperusers;
+               if(is_object($oAdditionalSuperUsers)) {
+                       $additionalSuperUsers = $oAdditionalSuperUsers->toArray();
+               }
+
+               require_once PIWIK_INCLUDE_PATH . '/plugins/CASLogin/CAS/CAS.php';
+
+               // initialize phpCAS
+
+               // What happens here: in some piwik functionality, some additional API-style calls are
+               // made from a controller action, where the authenticate() method will be called *again*.
+               // This happens for instance when an admin changes some permissions in Settings->Users.
+               // The first authenticate() is from the page, and the second is due to an API call.
+               // This checks if there was already a phpcas instance already initialized, otherwize
+               // phpCAS::client() would fail.
+               global $PHPCAS_CLIENT;
+               if(!is_object($PHPCAS_CLIENT)) {
+                       phpCAS::client(
+                               constant( Zend_Registry::get('config')->caslogin->protocol ),
+                               Zend_Registry::get('config')->caslogin->host,
+                               (integer) Zend_Registry::get('config')->caslogin->port,
+                '',
+                false
+                       );
+               }
+
+               // no SSL validation for the CAS server
+               phpCAS::setNoCasServerValidation();
+
+               // Handle single signout requests from CAS server
+               phpCAS::handleLogoutRequests();
+
+               // force CAS authentication only if it has been requested by action argument
+               $action = Piwik::getAction();
+               
+               $auth = phpCAS::checkAuthentication();
+               if(!$auth) {
+                       if($action == 'redirectToCAS') {
+                               phpCAS::forceAuthentication();
+                       }
+
+                       if($action != 'login' && Piwik::getModule() != 'CoreUpdater') {
+                               Piwik::redirectToModule('CASLogin', 'login');
+                               return;
+                       } elseif($action == 'redirectToCAS') {
+                               phpCAS::forceAuthentication();
+                       } else {
+                               return new Piwik_Auth_Result( Piwik_Auth_Result::FAILURE, $user, NULL );
+                       }
+               }
+
+               // Additional Attributes
+               // For future retrieval of attributes; they _might_ be of some use, but are highly
+               // dependable on a specific installation. CAS|piwik hackers can do some magic
+               // here with SAML attributes etc.
+               /*
+               foreach (phpCAS::getAttributes() as $key => $value) {
+                       // syslog(LOG_DEBUG, "attribute: $key - ". print_r($value, true));
+               }
+                */
+
+               if (isset($_SESSION['phpCAS']) && isset($_SESSION['phpCAS']['user'])) {
+                       $user = $_SESSION['phpCAS']['user'];
+               }
+
+               if($user) {
+                       if($user == $rootLogin || in_array($user, $additionalSuperUsers)) {
+                               // Root / Admin login
+                               return new Piwik_Auth_Result(Piwik_Auth_Result::SUCCESS_SUPERUSER_AUTH_CODE, $user, NULL );
+                       }
+
+                       $login = Zend_Registry::get('db')->fetchOne(
+                                       'SELECT login FROM '.Piwik_Common::prefixTable('user').' WHERE login = ?',
+                                       array($user)
+                       );
+                       if($login === false) {
+                               // ***User Autocreate***
+                               // We can either add the authenticated but not-yet-authorized user to the piwik users
+                               // database, or ignore that.
+                               // TODO: make this a config option
+                               // $this->_populateDb($user);
+                               $login = $user;
+                       }
+
+                       if($login == $user)
+                       {
+                               return new Piwik_Auth_Result(Piwik_Auth_Result::SUCCESS, $login, NULL );
+                       }
+               }
+
+               return new Piwik_Auth_Result( Piwik_Auth_Result::FAILURE, $user, NULL );
+       }
+
+       public function setLogin($login)
+       {
+               $this->login = $login;
+       }
+       
+    public function setTokenAuth($token_auth)
+       {
+               $this->token_auth = $token_auth;
+       }
+
+       /**
+        * This method is used to inject user into Piwik's tables.
+        * @todo Alias could be the 'cn' returned from CAS attributes.
+        */
+       private function _populateDb($user)
+       {
+               $result = null;
+               $dummy = md5('abcd1234');
+               if ($this->_helper_userExists($user)) {
+                       $this->_helper_updateUser($user, $dummy, '', 'alias');
+               } else {
+                       $this->_helper_addUser($user, $dummy, '', 'alias');
+               }
+       }
+
+
+       ///// The following methods are taken from Piwik's UserManager, but in order to inject data into piwik's user and access tables, we need
+       ///// to make sure we don't wreck things. The UserManager API uses authenticate() to check if we're eligable to look this up,
+       ///// soi we can't use it - we need superuser permissions anyway.
+       //
+       ///// Warning - these methods are of course under Piwik's license.
+       private function _helper_userExists($name)
+       {
+               $count = Zend_Registry::get('db')->fetchOne("SELECT count(*)
+                                                                       FROM ".Piwik_Common::prefixTable("user"). "
+                                                                       WHERE login = ?", $name);
+               return $count > 0;
+       }
+
+       private function _helper_updateUser( $userLogin, $password = false, $email = false, $alias = false ) 
+       {
+               $token_auth = Piwik_UsersManager_API::getTokenAuth($userLogin, $password);
+
+               $db = Zend_Registry::get('db');
+
+               $db->update( Piwik_Common::prefixTable("user"),
+                                       array(
+                                               'password' => $password,
+                                               'alias' => $alias,
+                                               'email' => $email,
+                                               'token_auth' => $token_auth,
+                                               ),
+                                       "login = '$userLogin'"
+                       );
+       }
+
+       private function _helper_addUser( $userLogin, $password, $email, $alias = false )
+       {               
+               $token_auth = Piwik_UsersManager_API::getTokenAuth($userLogin, $password);
+
+               $db = Zend_Registry::get('db');
+
+               $db->insert( Piwik_Common::prefixTable("user"), array(
+                                                                       'login' => $userLogin,
+                                                                       'password' => $password,
+                                                                       'alias' => $alias,
+                                                                       'email' => $email,
+                                                                       'token_auth' => $token_auth,
+                                                                       )
+               );
+       }
+    
+}
+
diff --git a/CAS/CAS.php b/CAS/CAS.php
new file mode 100644 (file)
index 0000000..e6bae3f
--- /dev/null
@@ -0,0 +1,1531 @@
+<?php\r
+\r
+/*\r
+ * Copyright © 2003-2010, The ESUP-Portail consortium & the JA-SIG Collaborative.\r
+ * All rights reserved.\r
+ * \r
+ * Redistribution and use in source and binary forms, with or without\r
+ * modification, are permitted provided that the following conditions are met:\r
+ * \r
+ *     * Redistributions of source code must retain the above copyright notice,\r
+ *       this list of conditions and the following disclaimer.\r
+ *     * Redistributions in binary form must reproduce the above copyright notice,\r
+ *       this list of conditions and the following disclaimer in the documentation\r
+ *       and/or other materials provided with the distribution.\r
+ *     * Neither the name of the ESUP-Portail consortium & the JA-SIG\r
+ *       Collaborative nor the names of its contributors may be used to endorse or\r
+ *       promote products derived from this software without specific prior\r
+ *       written permission.\r
+\r
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND\r
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\r
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\r
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR\r
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\r
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;\r
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON\r
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\r
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS\r
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r
+ */\r
+\r
+//\r
+// hack by Vangelis Haniotakis to handle the absence of $_SERVER['REQUEST_URI'] in IIS\r
+//\r
+if (!isset($_SERVER['REQUEST_URI'])) {\r
+       $_SERVER['REQUEST_URI'] = $_SERVER['SCRIPT_NAME'] . '?' . $_SERVER['QUERY_STRING'];\r
+}\r
+\r
+//\r
+// another one by Vangelis Haniotakis also to make phpCAS work with PHP5\r
+//\r
+if (version_compare(PHP_VERSION, '5', '>=') && !(function_exists('domxml_new_doc'))) {\r
+       require_once (dirname(__FILE__) . '/CAS/domxml-php4-to-php5.php');\r
+}\r
+\r
+/**\r
+ * @file CAS/CAS.php\r
+ * Interface class of the phpCAS library\r
+ *\r
+ * @ingroup public\r
+ */\r
+\r
+// ########################################################################\r
+//  CONSTANTS\r
+// ########################################################################\r
+\r
+// ------------------------------------------------------------------------\r
+//  CAS VERSIONS\r
+// ------------------------------------------------------------------------\r
+\r
+/**\r
+ * phpCAS version. accessible for the user by phpCAS::getVersion().\r
+ */\r
+define('PHPCAS_VERSION', '1.1.3');\r
+\r
+// ------------------------------------------------------------------------\r
+//  CAS VERSIONS\r
+// ------------------------------------------------------------------------\r
+/**\r
+ * @addtogroup public\r
+ * @{\r
+ */\r
+\r
+/**\r
+ * CAS version 1.0\r
+ */\r
+define("CAS_VERSION_1_0", '1.0');\r
+/*!\r
+ * CAS version 2.0\r
+ */\r
+define("CAS_VERSION_2_0", '2.0');\r
+\r
+// ------------------------------------------------------------------------\r
+//  SAML defines\r
+// ------------------------------------------------------------------------\r
+\r
+/**\r
+ * SAML protocol\r
+ */\r
+define("SAML_VERSION_1_1", 'S1');\r
+\r
+/**\r
+ * XML header for SAML POST\r
+ */\r
+define("SAML_XML_HEADER", '<?xml version="1.0" encoding="UTF-8"?>');\r
+\r
+/**\r
+ * SOAP envelope for SAML POST\r
+ */\r
+define("SAML_SOAP_ENV", '<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"><SOAP-ENV:Header/>');\r
+\r
+/**\r
+ * SOAP body for SAML POST\r
+ */\r
+define("SAML_SOAP_BODY", '<SOAP-ENV:Body>');\r
+\r
+/**\r
+ * SAMLP request\r
+ */\r
+define("SAMLP_REQUEST", '<samlp:Request xmlns:samlp="urn:oasis:names:tc:SAML:1.0:protocol"  MajorVersion="1" MinorVersion="1" RequestID="_192.168.16.51.1024506224022" IssueInstant="2002-06-19T17:03:44.022Z">');\r
+define("SAMLP_REQUEST_CLOSE", '</samlp:Request>');\r
+\r
+/**\r
+ * SAMLP artifact tag (for the ticket)\r
+ */\r
+define("SAML_ASSERTION_ARTIFACT", '<samlp:AssertionArtifact>');\r
+\r
+/**\r
+ * SAMLP close\r
+ */\r
+define("SAML_ASSERTION_ARTIFACT_CLOSE", '</samlp:AssertionArtifact>');\r
+\r
+/**\r
+ * SOAP body close\r
+ */\r
+define("SAML_SOAP_BODY_CLOSE", '</SOAP-ENV:Body>');\r
+\r
+/**\r
+ * SOAP envelope close\r
+ */\r
+define("SAML_SOAP_ENV_CLOSE", '</SOAP-ENV:Envelope>');\r
+\r
+/**\r
+ * SAML Attributes\r
+ */\r
+define("SAML_ATTRIBUTES", 'SAMLATTRIBS');\r
+\r
+/** @} */\r
+/**\r
+ * @addtogroup publicPGTStorage\r
+ * @{\r
+ */\r
+// ------------------------------------------------------------------------\r
+//  FILE PGT STORAGE\r
+// ------------------------------------------------------------------------\r
+/**\r
+ * Default path used when storing PGT's to file\r
+ */\r
+define("CAS_PGT_STORAGE_FILE_DEFAULT_PATH", '/tmp');\r
+/**\r
+ * phpCAS::setPGTStorageFile()'s 2nd parameter to write plain text files\r
+ */\r
+define("CAS_PGT_STORAGE_FILE_FORMAT_PLAIN", 'plain');\r
+/**\r
+ * phpCAS::setPGTStorageFile()'s 2nd parameter to write xml files\r
+ */\r
+define("CAS_PGT_STORAGE_FILE_FORMAT_XML", 'xml');\r
+/**\r
+ * Default format used when storing PGT's to file\r
+ */\r
+define("CAS_PGT_STORAGE_FILE_DEFAULT_FORMAT", CAS_PGT_STORAGE_FILE_FORMAT_PLAIN);\r
+/** @} */\r
+// ------------------------------------------------------------------------\r
+// SERVICE ACCESS ERRORS\r
+// ------------------------------------------------------------------------\r
+/**\r
+ * @addtogroup publicServices\r
+ * @{\r
+ */\r
+\r
+/**\r
+ * phpCAS::service() error code on success\r
+ */\r
+define("PHPCAS_SERVICE_OK", 0);\r
+/**\r
+ * phpCAS::service() error code when the PT could not retrieve because\r
+ * the CAS server did not respond.\r
+ */\r
+define("PHPCAS_SERVICE_PT_NO_SERVER_RESPONSE", 1);\r
+/**\r
+ * phpCAS::service() error code when the PT could not retrieve because\r
+ * the response of the CAS server was ill-formed.\r
+ */\r
+define("PHPCAS_SERVICE_PT_BAD_SERVER_RESPONSE", 2);\r
+/**\r
+ * phpCAS::service() error code when the PT could not retrieve because\r
+ * the CAS server did not want to.\r
+ */\r
+define("PHPCAS_SERVICE_PT_FAILURE", 3);\r
+/**\r
+ * phpCAS::service() error code when the service was not available.\r
+ */\r
+define("PHPCAS_SERVICE_NOT AVAILABLE", 4);\r
+\r
+/** @} */\r
+// ------------------------------------------------------------------------\r
+//  LANGUAGES\r
+// ------------------------------------------------------------------------\r
+/**\r
+ * @addtogroup publicLang\r
+ * @{\r
+ */\r
+\r
+define("PHPCAS_LANG_ENGLISH", 'english');\r
+define("PHPCAS_LANG_FRENCH", 'french');\r
+define("PHPCAS_LANG_GREEK", 'greek');\r
+define("PHPCAS_LANG_GERMAN", 'german');\r
+define("PHPCAS_LANG_JAPANESE", 'japanese');\r
+define("PHPCAS_LANG_SPANISH", 'spanish');\r
+define("PHPCAS_LANG_CATALAN", 'catalan');\r
+\r
+/** @} */\r
+\r
+/**\r
+ * @addtogroup internalLang\r
+ * @{\r
+ */\r
+\r
+/**\r
+ * phpCAS default language (when phpCAS::setLang() is not used)\r
+ */\r
+define("PHPCAS_LANG_DEFAULT", PHPCAS_LANG_ENGLISH);\r
+\r
+/** @} */\r
+// ------------------------------------------------------------------------\r
+//  DEBUG\r
+// ------------------------------------------------------------------------\r
+/**\r
+ * @addtogroup publicDebug\r
+ * @{\r
+ */\r
+\r
+/**\r
+ * The default directory for the debug file under Unix.\r
+ */\r
+define('DEFAULT_DEBUG_DIR', '/tmp/');\r
+\r
+/** @} */\r
+// ------------------------------------------------------------------------\r
+//  MISC\r
+// ------------------------------------------------------------------------\r
+/**\r
+ * @addtogroup internalMisc\r
+ * @{\r
+ */\r
+\r
+/**\r
+ * This global variable is used by the interface class phpCAS.\r
+ *\r
+ * @hideinitializer\r
+ */\r
+$GLOBALS['PHPCAS_CLIENT'] = null;\r
+\r
+/**\r
+ * This global variable is used to store where the initializer is called from \r
+ * (to print a comprehensive error in case of multiple calls).\r
+ *\r
+ * @hideinitializer\r
+ */\r
+$GLOBALS['PHPCAS_INIT_CALL'] = array (\r
+       'done' => FALSE,\r
+       'file' => '?',\r
+       'line' => -1,\r
+       'method' => '?'\r
+);\r
+\r
+/**\r
+ * This global variable is used to store where the method checking\r
+ * the authentication is called from (to print comprehensive errors)\r
+ *\r
+ * @hideinitializer\r
+ */\r
+$GLOBALS['PHPCAS_AUTH_CHECK_CALL'] = array (\r
+       'done' => FALSE,\r
+       'file' => '?',\r
+       'line' => -1,\r
+       'method' => '?',\r
+       'result' => FALSE\r
+);\r
+\r
+/**\r
+ * This global variable is used to store phpCAS debug mode.\r
+ *\r
+ * @hideinitializer\r
+ */\r
+$GLOBALS['PHPCAS_DEBUG'] = array (\r
+       'filename' => FALSE,\r
+       'indent' => 0,\r
+       'unique_id' => ''\r
+);\r
+\r
+/** @} */\r
+\r
+// ########################################################################\r
+//  CLIENT CLASS\r
+// ########################################################################\r
+\r
+// include client class\r
+include_once (dirname(__FILE__) . '/CAS/client.php');\r
+\r
+// ########################################################################\r
+//  INTERFACE CLASS\r
+// ########################################################################\r
+\r
+/**\r
+ * @class phpCAS\r
+ * The phpCAS class is a simple container for the phpCAS library. It provides CAS\r
+ * authentication for web applications written in PHP.\r
+ *\r
+ * @ingroup public\r
+ * @author Pascal Aubry <pascal.aubry at univ-rennes1.fr>\r
+ *\r
+ * \internal All its methods access the same object ($PHPCAS_CLIENT, declared \r
+ * at the end of CAS/client.php).\r
+ */\r
+\r
+class phpCAS {\r
+\r
+       // ########################################################################\r
+       //  INITIALIZATION\r
+       // ########################################################################\r
+\r
+       /**\r
+        * @addtogroup publicInit\r
+        * @{\r
+        */\r
+\r
+       /**\r
+        * phpCAS client initializer.\r
+        * @note Only one of the phpCAS::client() and phpCAS::proxy functions should be\r
+        * called, only once, and before all other methods (except phpCAS::getVersion()\r
+        * and phpCAS::setDebug()).\r
+        *\r
+        * @param $server_version the version of the CAS server\r
+        * @param $server_hostname the hostname of the CAS server\r
+        * @param $server_port the port the CAS server is running on\r
+        * @param $server_uri the URI the CAS server is responding on\r
+        * @param $start_session Have phpCAS start PHP sessions (default true)\r
+        *\r
+        * @return a newly created CASClient object\r
+        */\r
+       function client($server_version, $server_hostname, $server_port, $server_uri, $start_session = true) {\r
+               global $PHPCAS_CLIENT, $PHPCAS_INIT_CALL;\r
+\r
+               phpCAS :: traceBegin();\r
+               if (is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error($PHPCAS_INIT_CALL['method'] . '() has already been called (at ' . $PHPCAS_INIT_CALL['file'] . ':' . $PHPCAS_INIT_CALL['line'] . ')');\r
+               }\r
+               if (gettype($server_version) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $server_version (should be `string\')');\r
+               }\r
+               if (gettype($server_hostname) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $server_hostname (should be `string\')');\r
+               }\r
+               if (gettype($server_port) != 'integer') {\r
+                       phpCAS :: error('type mismatched for parameter $server_port (should be `integer\')');\r
+               }\r
+               if (gettype($server_uri) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $server_uri (should be `string\')');\r
+               }\r
+\r
+               // store where the initializer is called from\r
+               $dbg = phpCAS :: backtrace();\r
+               $PHPCAS_INIT_CALL = array (\r
+                       'done' => TRUE,\r
+                       'file' => $dbg[0]['file'],\r
+                       'line' => $dbg[0]['line'],\r
+                       'method' => __CLASS__ . '::' . __FUNCTION__\r
+               );\r
+\r
+               // initialize the global object $PHPCAS_CLIENT\r
+               $PHPCAS_CLIENT = new CASClient($server_version, FALSE /*proxy*/\r
+               , $server_hostname, $server_port, $server_uri, $start_session);\r
+               phpCAS :: traceEnd();\r
+       }\r
+\r
+       /**\r
+        * phpCAS proxy initializer.\r
+        * @note Only one of the phpCAS::client() and phpCAS::proxy functions should be\r
+        * called, only once, and before all other methods (except phpCAS::getVersion()\r
+        * and phpCAS::setDebug()).\r
+        *\r
+        * @param $server_version the version of the CAS server\r
+        * @param $server_hostname the hostname of the CAS server\r
+        * @param $server_port the port the CAS server is running on\r
+        * @param $server_uri the URI the CAS server is responding on\r
+        * @param $start_session Have phpCAS start PHP sessions (default true)\r
+        *\r
+        * @return a newly created CASClient object\r
+        */\r
+       function proxy($server_version, $server_hostname, $server_port, $server_uri, $start_session = true) {\r
+               global $PHPCAS_CLIENT, $PHPCAS_INIT_CALL;\r
+\r
+               phpCAS :: traceBegin();\r
+               if (is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error($PHPCAS_INIT_CALL['method'] . '() has already been called (at ' . $PHPCAS_INIT_CALL['file'] . ':' . $PHPCAS_INIT_CALL['line'] . ')');\r
+               }\r
+               if (gettype($server_version) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $server_version (should be `string\')');\r
+               }\r
+               if (gettype($server_hostname) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $server_hostname (should be `string\')');\r
+               }\r
+               if (gettype($server_port) != 'integer') {\r
+                       phpCAS :: error('type mismatched for parameter $server_port (should be `integer\')');\r
+               }\r
+               if (gettype($server_uri) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $server_uri (should be `string\')');\r
+               }\r
+\r
+               // store where the initialzer is called from\r
+               $dbg = phpCAS :: backtrace();\r
+               $PHPCAS_INIT_CALL = array (\r
+                       'done' => TRUE,\r
+                       'file' => $dbg[0]['file'],\r
+                       'line' => $dbg[0]['line'],\r
+                       'method' => __CLASS__ . '::' . __FUNCTION__\r
+               );\r
+\r
+               // initialize the global object $PHPCAS_CLIENT\r
+               $PHPCAS_CLIENT = new CASClient($server_version, TRUE /*proxy*/\r
+               , $server_hostname, $server_port, $server_uri, $start_session);\r
+               phpCAS :: traceEnd();\r
+       }\r
+\r
+       /** @} */\r
+       // ########################################################################\r
+       //  DEBUGGING\r
+       // ########################################################################\r
+\r
+       /**\r
+        * @addtogroup publicDebug\r
+        * @{\r
+        */\r
+\r
+       /**\r
+        * Set/unset debug mode\r
+        *\r
+        * @param $filename the name of the file used for logging, or FALSE to stop debugging.\r
+        */\r
+       function setDebug($filename = '') {\r
+               global $PHPCAS_DEBUG;\r
+\r
+               if ($filename != FALSE && gettype($filename) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $dbg (should be FALSE or the name of the log file)');\r
+               }\r
+\r
+               if (empty ($filename)) {\r
+                       if (preg_match('/^Win.*/', getenv('OS'))) {\r
+                               if (isset ($_ENV['TMP'])) {\r
+                                       $debugDir = $_ENV['TMP'] . '/';\r
+                               } else\r
+                                       if (isset ($_ENV['TEMP'])) {\r
+                                               $debugDir = $_ENV['TEMP'] . '/';\r
+                                       } else {\r
+                                               $debugDir = '';\r
+                                       }\r
+                       } else {\r
+                               $debugDir = DEFAULT_DEBUG_DIR;\r
+                       }\r
+                       $filename = $debugDir . 'phpCAS.log';\r
+               }\r
+\r
+               if (empty ($PHPCAS_DEBUG['unique_id'])) {\r
+                       $PHPCAS_DEBUG['unique_id'] = substr(strtoupper(md5(uniqid(''))), 0, 4);\r
+               }\r
+\r
+               $PHPCAS_DEBUG['filename'] = $filename;\r
+\r
+               phpCAS :: trace('START phpCAS-' . PHPCAS_VERSION . ' ******************');\r
+       }\r
+\r
+       /** @} */\r
+       /**\r
+        * @addtogroup internalDebug\r
+        * @{\r
+        */\r
+\r
+       /**\r
+        * This method is a wrapper for debug_backtrace() that is not available \r
+        * in all PHP versions (>= 4.3.0 only)\r
+        */\r
+       function backtrace() {\r
+               if (function_exists('debug_backtrace')) {\r
+                       return debug_backtrace();\r
+               } else {\r
+                       // poor man's hack ... but it does work ...\r
+                       return array ();\r
+               }\r
+       }\r
+\r
+       /**\r
+        * Logs a string in debug mode.\r
+        *\r
+        * @param $str the string to write\r
+        *\r
+        * @private\r
+        */\r
+       function log($str) {\r
+               $indent_str = ".";\r
+               global $PHPCAS_DEBUG;\r
+\r
+               if ($PHPCAS_DEBUG['filename']) {\r
+                       for ($i = 0; $i < $PHPCAS_DEBUG['indent']; $i++) {\r
+                               $indent_str .= '|    ';\r
+                       }\r
+                       error_log($PHPCAS_DEBUG['unique_id'] . ' ' . $indent_str . $str . "\n", 3, $PHPCAS_DEBUG['filename']);\r
+               }\r
+\r
+       }\r
+\r
+       /**\r
+        * This method is used by interface methods to print an error and where the function\r
+        * was originally called from.\r
+        *\r
+        * @param $msg the message to print\r
+        *\r
+        * @private\r
+        */\r
+       function error($msg) {\r
+               $dbg = phpCAS :: backtrace();\r
+               $function = '?';\r
+               $file = '?';\r
+               $line = '?';\r
+               if (is_array($dbg)) {\r
+                       for ($i = 1; $i < sizeof($dbg); $i++) {\r
+                               if (is_array($dbg[$i])) {\r
+                                       if ($dbg[$i]['class'] == __CLASS__) {\r
+                                               $function = $dbg[$i]['function'];\r
+                                               $file = $dbg[$i]['file'];\r
+                                               $line = $dbg[$i]['line'];\r
+                                       }\r
+                               }\r
+                       }\r
+               }\r
+               echo "<br />\n<b>phpCAS error</b>: <font color=\"FF0000\"><b>" . __CLASS__ . "::" . $function . '(): ' . htmlentities($msg) . "</b></font> in <b>" . $file . "</b> on line <b>" . $line . "</b><br />\n";\r
+               phpCAS :: trace($msg);\r
+               phpCAS :: traceExit();\r
+               exit ();\r
+       }\r
+\r
+       /**\r
+        * This method is used to log something in debug mode.\r
+        */\r
+       function trace($str) {\r
+               $dbg = phpCAS :: backtrace();\r
+               phpCAS :: log($str . ' [' . basename($dbg[1]['file']) . ':' . $dbg[1]['line'] . ']');\r
+       }\r
+\r
+       /**\r
+        * This method is used to indicate the start of the execution of a function in debug mode.\r
+        */\r
+       function traceBegin() {\r
+               global $PHPCAS_DEBUG;\r
+\r
+               $dbg = phpCAS :: backtrace();\r
+               $str = '=> ';\r
+               if (!empty ($dbg[2]['class'])) {\r
+                       $str .= $dbg[2]['class'] . '::';\r
+               }\r
+               $str .= $dbg[2]['function'] . '(';\r
+               if (is_array($dbg[2]['args'])) {\r
+                       foreach ($dbg[2]['args'] as $index => $arg) {\r
+                               if ($index != 0) {\r
+                                       $str .= ', ';\r
+                               }\r
+                               $str .= str_replace("\n", "", var_export($arg, TRUE));\r
+                       }\r
+               }\r
+               $str .= ') [' . basename($dbg[2]['file']) . ':' . $dbg[2]['line'] . ']';\r
+               phpCAS :: log($str);\r
+               $PHPCAS_DEBUG['indent']++;\r
+       }\r
+\r
+       /**\r
+        * This method is used to indicate the end of the execution of a function in debug mode.\r
+        *\r
+        * @param $res the result of the function\r
+        */\r
+       function traceEnd($res = '') {\r
+               global $PHPCAS_DEBUG;\r
+\r
+               $PHPCAS_DEBUG['indent']--;\r
+               $dbg = phpCAS :: backtrace();\r
+               $str = '';\r
+               $str .= '<= ' . str_replace("\n", "", var_export($res, TRUE));\r
+               phpCAS :: log($str);\r
+       }\r
+\r
+       /**\r
+        * This method is used to indicate the end of the execution of the program\r
+        */\r
+       function traceExit() {\r
+               global $PHPCAS_DEBUG;\r
+\r
+               phpCAS :: log('exit()');\r
+               while ($PHPCAS_DEBUG['indent'] > 0) {\r
+                       phpCAS :: log('-');\r
+                       $PHPCAS_DEBUG['indent']--;\r
+               }\r
+       }\r
+\r
+       /** @} */\r
+       // ########################################################################\r
+       //  INTERNATIONALIZATION\r
+       // ########################################################################\r
+       /**\r
+        * @addtogroup publicLang\r
+        * @{\r
+        */\r
+\r
+       /**\r
+        * This method is used to set the language used by phpCAS. \r
+        * @note Can be called only once.\r
+        *\r
+        * @param $lang a string representing the language.\r
+        *\r
+        * @sa PHPCAS_LANG_FRENCH, PHPCAS_LANG_ENGLISH\r
+        */\r
+       function setLang($lang) {\r
+               global $PHPCAS_CLIENT;\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should not be called before ' . __CLASS__ . '::client() or ' . __CLASS__ . '::proxy()');\r
+               }\r
+               if (gettype($lang) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $lang (should be `string\')');\r
+               }\r
+               $PHPCAS_CLIENT->setLang($lang);\r
+       }\r
+\r
+       /** @} */\r
+       // ########################################################################\r
+       //  VERSION\r
+       // ########################################################################\r
+       /**\r
+        * @addtogroup public\r
+        * @{\r
+        */\r
+\r
+       /**\r
+        * This method returns the phpCAS version.\r
+        *\r
+        * @return the phpCAS version.\r
+        */\r
+       function getVersion() {\r
+               return PHPCAS_VERSION;\r
+       }\r
+\r
+       /** @} */\r
+       // ########################################################################\r
+       //  HTML OUTPUT\r
+       // ########################################################################\r
+       /**\r
+        * @addtogroup publicOutput\r
+        * @{\r
+        */\r
+\r
+       /**\r
+        * This method sets the HTML header used for all outputs.\r
+        *\r
+        * @param $header the HTML header.\r
+        */\r
+       function setHTMLHeader($header) {\r
+               global $PHPCAS_CLIENT;\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should not be called before ' . __CLASS__ . '::client() or ' . __CLASS__ . '::proxy()');\r
+               }\r
+               if (gettype($header) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $header (should be `string\')');\r
+               }\r
+               $PHPCAS_CLIENT->setHTMLHeader($header);\r
+       }\r
+\r
+       /**\r
+        * This method sets the HTML footer used for all outputs.\r
+        *\r
+        * @param $footer the HTML footer.\r
+        */\r
+       function setHTMLFooter($footer) {\r
+               global $PHPCAS_CLIENT;\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should not be called before ' . __CLASS__ . '::client() or ' . __CLASS__ . '::proxy()');\r
+               }\r
+               if (gettype($footer) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $footer (should be `string\')');\r
+               }\r
+               $PHPCAS_CLIENT->setHTMLFooter($footer);\r
+       }\r
+\r
+       /** @} */\r
+       // ########################################################################\r
+       //  PGT STORAGE\r
+       // ########################################################################\r
+       /**\r
+        * @addtogroup publicPGTStorage\r
+        * @{\r
+        */\r
+\r
+       /**\r
+        * This method is used to tell phpCAS to store the response of the\r
+        * CAS server to PGT requests onto the filesystem. \r
+        *\r
+        * @param $format the format used to store the PGT's (`plain' and `xml' allowed)\r
+        * @param $path the path where the PGT's should be stored\r
+        */\r
+       function setPGTStorageFile($format = '', $path = '') {\r
+               global $PHPCAS_CLIENT, $PHPCAS_AUTH_CHECK_CALL;\r
+\r
+               phpCAS :: traceBegin();\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should only be called after ' . __CLASS__ . '::proxy()');\r
+               }\r
+               if (!$PHPCAS_CLIENT->isProxy()) {\r
+                       phpCAS :: error('this method should only be called after ' . __CLASS__ . '::proxy()');\r
+               }\r
+               if ($PHPCAS_AUTH_CHECK_CALL['done']) {\r
+                       phpCAS :: error('this method should only be called before ' . $PHPCAS_AUTH_CHECK_CALL['method'] . '() (called at ' . $PHPCAS_AUTH_CHECK_CALL['file'] . ':' . $PHPCAS_AUTH_CHECK_CALL['line'] . ')');\r
+               }\r
+               if (gettype($format) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $format (should be `string\')');\r
+               }\r
+               if (gettype($path) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $format (should be `string\')');\r
+               }\r
+               $PHPCAS_CLIENT->setPGTStorageFile($format, $path);\r
+               phpCAS :: traceEnd();\r
+       }\r
+\r
+\r
+       /** @} */\r
+       // ########################################################################\r
+       // ACCESS TO EXTERNAL SERVICES\r
+       // ########################################################################\r
+       /**\r
+        * @addtogroup publicServices\r
+        * @{\r
+        */\r
+\r
+       /**\r
+        * This method is used to access an HTTP[S] service.\r
+        * \r
+        * @param $url the service to access.\r
+        * @param $err_code an error code Possible values are PHPCAS_SERVICE_OK (on\r
+        * success), PHPCAS_SERVICE_PT_NO_SERVER_RESPONSE, PHPCAS_SERVICE_PT_BAD_SERVER_RESPONSE,\r
+        * PHPCAS_SERVICE_PT_FAILURE, PHPCAS_SERVICE_NOT AVAILABLE.\r
+        * @param $output the output of the service (also used to give an error\r
+        * message on failure).\r
+        *\r
+        * @return TRUE on success, FALSE otherwise (in this later case, $err_code\r
+        * gives the reason why it failed and $output contains an error message).\r
+        */\r
+       function serviceWeb($url, & $err_code, & $output) {\r
+               global $PHPCAS_CLIENT, $PHPCAS_AUTH_CHECK_CALL;\r
+\r
+               phpCAS :: traceBegin();\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should only be called after ' . __CLASS__ . '::proxy()');\r
+               }\r
+               if (!$PHPCAS_CLIENT->isProxy()) {\r
+                       phpCAS :: error('this method should only be called after ' . __CLASS__ . '::proxy()');\r
+               }\r
+               if (!$PHPCAS_AUTH_CHECK_CALL['done']) {\r
+                       phpCAS :: error('this method should only be called after the programmer is sure the user has been authenticated (by calling ' . __CLASS__ . '::checkAuthentication() or ' . __CLASS__ . '::forceAuthentication()');\r
+               }\r
+               if (!$PHPCAS_AUTH_CHECK_CALL['result']) {\r
+                       phpCAS :: error('authentication was checked (by ' . $PHPCAS_AUTH_CHECK_CALL['method'] . '() at ' . $PHPCAS_AUTH_CHECK_CALL['file'] . ':' . $PHPCAS_AUTH_CHECK_CALL['line'] . ') but the method returned FALSE');\r
+               }\r
+               if (gettype($url) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $url (should be `string\')');\r
+               }\r
+\r
+               $res = $PHPCAS_CLIENT->serviceWeb($url, $err_code, $output);\r
+\r
+               phpCAS :: traceEnd($res);\r
+               return $res;\r
+       }\r
+\r
+       /**\r
+        * This method is used to access an IMAP/POP3/NNTP service.\r
+        * \r
+        * @param $url a string giving the URL of the service, including the mailing box\r
+        * for IMAP URLs, as accepted by imap_open().\r
+        * @param $service a string giving for CAS retrieve Proxy ticket\r
+        * @param $flags options given to imap_open().\r
+        * @param $err_code an error code Possible values are PHPCAS_SERVICE_OK (on\r
+        * success), PHPCAS_SERVICE_PT_NO_SERVER_RESPONSE, PHPCAS_SERVICE_PT_BAD_SERVER_RESPONSE,\r
+        * PHPCAS_SERVICE_PT_FAILURE, PHPCAS_SERVICE_NOT AVAILABLE.\r
+        * @param $err_msg an error message on failure\r
+        * @param $pt the Proxy Ticket (PT) retrieved from the CAS server to access the URL\r
+        * on success, FALSE on error).\r
+        *\r
+        * @return an IMAP stream on success, FALSE otherwise (in this later case, $err_code\r
+        * gives the reason why it failed and $err_msg contains an error message).\r
+        */\r
+       function serviceMail($url, $service, $flags, & $err_code, & $err_msg, & $pt) {\r
+               global $PHPCAS_CLIENT, $PHPCAS_AUTH_CHECK_CALL;\r
+\r
+               phpCAS :: traceBegin();\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should only be called after ' . __CLASS__ . '::proxy()');\r
+               }\r
+               if (!$PHPCAS_CLIENT->isProxy()) {\r
+                       phpCAS :: error('this method should only be called after ' . __CLASS__ . '::proxy()');\r
+               }\r
+               if (!$PHPCAS_AUTH_CHECK_CALL['done']) {\r
+                       phpCAS :: error('this method should only be called after the programmer is sure the user has been authenticated (by calling ' . __CLASS__ . '::checkAuthentication() or ' . __CLASS__ . '::forceAuthentication()');\r
+               }\r
+               if (!$PHPCAS_AUTH_CHECK_CALL['result']) {\r
+                       phpCAS :: error('authentication was checked (by ' . $PHPCAS_AUTH_CHECK_CALL['method'] . '() at ' . $PHPCAS_AUTH_CHECK_CALL['file'] . ':' . $PHPCAS_AUTH_CHECK_CALL['line'] . ') but the method returned FALSE');\r
+               }\r
+               if (gettype($url) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $url (should be `string\')');\r
+               }\r
+\r
+               if (gettype($flags) != 'integer') {\r
+                       phpCAS :: error('type mismatched for parameter $flags (should be `integer\')');\r
+               }\r
+\r
+               $res = $PHPCAS_CLIENT->serviceMail($url, $service, $flags, $err_code, $err_msg, $pt);\r
+\r
+               phpCAS :: traceEnd($res);\r
+               return $res;\r
+       }\r
+\r
+       /** @} */\r
+       // ########################################################################\r
+       //  AUTHENTICATION\r
+       // ########################################################################\r
+       /**\r
+        * @addtogroup publicAuth\r
+        * @{\r
+        */\r
+\r
+       /**\r
+        * Set the times authentication will be cached before really accessing the CAS server in gateway mode: \r
+        * - -1: check only once, and then never again (until you pree login)\r
+        * - 0: always check\r
+        * - n: check every "n" time\r
+        *\r
+        * @param $n an integer.\r
+        */\r
+       function setCacheTimesForAuthRecheck($n) {\r
+               global $PHPCAS_CLIENT;\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should not be called before ' . __CLASS__ . '::client() or ' . __CLASS__ . '::proxy()');\r
+               }\r
+               if (gettype($n) != 'integer') {\r
+                       phpCAS :: error('type mismatched for parameter $header (should be `string\')');\r
+               }\r
+               $PHPCAS_CLIENT->setCacheTimesForAuthRecheck($n);\r
+       }\r
+\r
+       /**\r
+        * This method is called to check if the user is authenticated (use the gateway feature).\r
+        * @return TRUE when the user is authenticated; otherwise FALSE.\r
+        */\r
+       function checkAuthentication() {\r
+               global $PHPCAS_CLIENT, $PHPCAS_AUTH_CHECK_CALL;\r
+\r
+               phpCAS :: traceBegin();\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should not be called before ' . __CLASS__ . '::client() or ' . __CLASS__ . '::proxy()');\r
+               }\r
+\r
+               $auth = $PHPCAS_CLIENT->checkAuthentication();\r
+\r
+               // store where the authentication has been checked and the result\r
+               $dbg = phpCAS :: backtrace();\r
+               $PHPCAS_AUTH_CHECK_CALL = array (\r
+                       'done' => TRUE,\r
+                       'file' => $dbg[0]['file'],\r
+                       'line' => $dbg[0]['line'],\r
+                       'method' => __CLASS__ . '::' . __FUNCTION__,\r
+                       'result' => $auth\r
+               );\r
+               phpCAS :: traceEnd($auth);\r
+               return $auth;\r
+       }\r
+\r
+       /**\r
+        * This method is called to force authentication if the user was not already \r
+        * authenticated. If the user is not authenticated, halt by redirecting to \r
+        * the CAS server.\r
+        */\r
+       function forceAuthentication() {\r
+               global $PHPCAS_CLIENT, $PHPCAS_AUTH_CHECK_CALL;\r
+\r
+               phpCAS :: traceBegin();\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should not be called before ' . __CLASS__ . '::client() or ' . __CLASS__ . '::proxy()');\r
+               }\r
+\r
+               $auth = $PHPCAS_CLIENT->forceAuthentication();\r
+\r
+               // store where the authentication has been checked and the result\r
+               $dbg = phpCAS :: backtrace();\r
+               $PHPCAS_AUTH_CHECK_CALL = array (\r
+                       'done' => TRUE,\r
+                       'file' => $dbg[0]['file'],\r
+                       'line' => $dbg[0]['line'],\r
+                       'method' => __CLASS__ . '::' . __FUNCTION__,\r
+                       'result' => $auth\r
+               );\r
+\r
+               if (!$auth) {\r
+                       phpCAS :: trace('user is not authenticated, redirecting to the CAS server');\r
+                       $PHPCAS_CLIENT->forceAuthentication();\r
+               } else {\r
+                       phpCAS :: trace('no need to authenticate (user `' . phpCAS :: getUser() . '\' is already authenticated)');\r
+               }\r
+\r
+               phpCAS :: traceEnd();\r
+               return $auth;\r
+       }\r
+\r
+       /**\r
+        * This method is called to renew the authentication.\r
+        **/\r
+       function renewAuthentication() {\r
+               global $PHPCAS_CLIENT, $PHPCAS_AUTH_CHECK_CALL;\r
+\r
+               phpCAS :: traceBegin();\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should not be called before' . __CLASS__ . '::client() or ' . __CLASS__ . '::proxy()');\r
+               }\r
+\r
+               // store where the authentication has been checked and the result\r
+               $dbg = phpCAS :: backtrace();\r
+               $PHPCAS_AUTH_CHECK_CALL = array (\r
+                       'done' => TRUE,\r
+                       'file' => $dbg[0]['file'],\r
+                       'line' => $dbg[0]['line'],\r
+                       'method' => __CLASS__ . '::' . __FUNCTION__,\r
+                       'result' => $auth\r
+               );\r
+\r
+               $PHPCAS_CLIENT->renewAuthentication();\r
+               phpCAS :: traceEnd();\r
+       }\r
+\r
+       /**\r
+        * This method has been left from version 0.4.1 for compatibility reasons.\r
+        */\r
+       function authenticate() {\r
+               phpCAS :: error('this method is deprecated. You should use ' . __CLASS__ . '::forceAuthentication() instead');\r
+       }\r
+\r
+       /**\r
+        * This method is called to check if the user is authenticated (previously or by\r
+        * tickets given in the URL).\r
+        *\r
+        * @return TRUE when the user is authenticated.\r
+        */\r
+       function isAuthenticated() {\r
+               global $PHPCAS_CLIENT, $PHPCAS_AUTH_CHECK_CALL;\r
+\r
+               phpCAS :: traceBegin();\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should not be called before ' . __CLASS__ . '::client() or ' . __CLASS__ . '::proxy()');\r
+               }\r
+\r
+               // call the isAuthenticated method of the global $PHPCAS_CLIENT object\r
+               $auth = $PHPCAS_CLIENT->isAuthenticated();\r
+\r
+               // store where the authentication has been checked and the result\r
+               $dbg = phpCAS :: backtrace();\r
+               $PHPCAS_AUTH_CHECK_CALL = array (\r
+                       'done' => TRUE,\r
+                       'file' => $dbg[0]['file'],\r
+                       'line' => $dbg[0]['line'],\r
+                       'method' => __CLASS__ . '::' . __FUNCTION__,\r
+                       'result' => $auth\r
+               );\r
+               phpCAS :: traceEnd($auth);\r
+               return $auth;\r
+       }\r
+\r
+       /**\r
+        * Checks whether authenticated based on $_SESSION. Useful to avoid\r
+        * server calls.\r
+        * @return true if authenticated, false otherwise.\r
+        * @since 0.4.22 by Brendan Arnold\r
+        */\r
+       function isSessionAuthenticated() {\r
+               global $PHPCAS_CLIENT;\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should not be called before ' . __CLASS__ . '::client() or ' . __CLASS__ . '::proxy()');\r
+               }\r
+               return ($PHPCAS_CLIENT->isSessionAuthenticated());\r
+       }\r
+\r
+       /**\r
+        * This method returns the CAS user's login name.\r
+        * @warning should not be called only after phpCAS::forceAuthentication()\r
+        * or phpCAS::checkAuthentication().\r
+        *\r
+        * @return the login name of the authenticated user\r
+        */\r
+       function getUser() {\r
+               global $PHPCAS_CLIENT, $PHPCAS_AUTH_CHECK_CALL;\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should not be called before ' . __CLASS__ . '::client() or ' . __CLASS__ . '::proxy()');\r
+               }\r
+               if (!$PHPCAS_AUTH_CHECK_CALL['done']) {\r
+                       phpCAS :: error('this method should only be called after ' . __CLASS__ . '::forceAuthentication() or ' . __CLASS__ . '::isAuthenticated()');\r
+               }\r
+               if (!$PHPCAS_AUTH_CHECK_CALL['result']) {\r
+                       phpCAS :: error('authentication was checked (by ' . $PHPCAS_AUTH_CHECK_CALL['method'] . '() at ' . $PHPCAS_AUTH_CHECK_CALL['file'] . ':' . $PHPCAS_AUTH_CHECK_CALL['line'] . ') but the method returned FALSE');\r
+               }\r
+               return $PHPCAS_CLIENT->getUser();\r
+       }\r
+\r
+       /**\r
+        * This method returns the CAS user's login name.\r
+        * @warning should not be called only after phpCAS::forceAuthentication()\r
+        * or phpCAS::checkAuthentication().\r
+        *\r
+        * @return the login name of the authenticated user\r
+        */\r
+       function getAttributes() {\r
+               global $PHPCAS_CLIENT, $PHPCAS_AUTH_CHECK_CALL;\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should not be called before ' . __CLASS__ . '::client() or ' . __CLASS__ . '::proxy()');\r
+               }\r
+               if (!$PHPCAS_AUTH_CHECK_CALL['done']) {\r
+                       phpCAS :: error('this method should only be called after ' . __CLASS__ . '::forceAuthentication() or ' . __CLASS__ . '::isAuthenticated()');\r
+               }\r
+               if (!$PHPCAS_AUTH_CHECK_CALL['result']) {\r
+                       phpCAS :: error('authentication was checked (by ' . $PHPCAS_AUTH_CHECK_CALL['method'] . '() at ' . $PHPCAS_AUTH_CHECK_CALL['file'] . ':' . $PHPCAS_AUTH_CHECK_CALL['line'] . ') but the method returned FALSE');\r
+               }\r
+               return $PHPCAS_CLIENT->getAttributes();\r
+       }\r
+       /**\r
+        * Handle logout requests.\r
+        */\r
+       function handleLogoutRequests($check_client = true, $allowed_clients = false) {\r
+               global $PHPCAS_CLIENT;\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should not be called before ' . __CLASS__ . '::client() or ' . __CLASS__ . '::proxy()');\r
+               }\r
+               return ($PHPCAS_CLIENT->handleLogoutRequests($check_client, $allowed_clients));\r
+       }\r
+\r
+       /**\r
+        * This method returns the URL to be used to login.\r
+        * or phpCAS::isAuthenticated().\r
+        *\r
+        * @return the login name of the authenticated user\r
+        */\r
+       function getServerLoginURL() {\r
+               global $PHPCAS_CLIENT;\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should not be called before ' . __CLASS__ . '::client() or ' . __CLASS__ . '::proxy()');\r
+               }\r
+               return $PHPCAS_CLIENT->getServerLoginURL();\r
+       }\r
+\r
+       /**\r
+        * Set the login URL of the CAS server.\r
+        * @param $url the login URL\r
+        * @since 0.4.21 by Wyman Chan\r
+        */\r
+       function setServerLoginURL($url = '') {\r
+               global $PHPCAS_CLIENT;\r
+               phpCAS :: traceBegin();\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should only be called after\r
+                                                       ' . __CLASS__ . '::client()');\r
+               }\r
+               if (gettype($url) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $url (should be\r
+                                               `string\')');\r
+               }\r
+               $PHPCAS_CLIENT->setServerLoginURL($url);\r
+               phpCAS :: traceEnd();\r
+       }\r
+\r
+       /**\r
+        * Set the serviceValidate URL of the CAS server.\r
+        * Used only in CAS 1.0 validations\r
+        * @param $url the serviceValidate URL\r
+        * @since 1.1.0 by Joachim Fritschi\r
+        */\r
+       function setServerServiceValidateURL($url = '') {\r
+               global $PHPCAS_CLIENT;\r
+               phpCAS :: traceBegin();\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should only be called after\r
+                                                       ' . __CLASS__ . '::client()');\r
+               }\r
+               if (gettype($url) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $url (should be\r
+                                               `string\')');\r
+               }\r
+               $PHPCAS_CLIENT->setServerServiceValidateURL($url);\r
+               phpCAS :: traceEnd();\r
+       }\r
+\r
+       /**\r
+        * Set the proxyValidate URL of the CAS server.\r
+        * Used for all CAS 2.0 validations\r
+        * @param $url the proxyValidate URL\r
+        * @since 1.1.0 by Joachim Fritschi\r
+        */\r
+       function setServerProxyValidateURL($url = '') {\r
+               global $PHPCAS_CLIENT;\r
+               phpCAS :: traceBegin();\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should only be called after\r
+                                                       ' . __CLASS__ . '::client()');\r
+               }\r
+               if (gettype($url) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $url (should be\r
+                                               `string\')');\r
+               }\r
+               $PHPCAS_CLIENT->setServerProxyValidateURL($url);\r
+               phpCAS :: traceEnd();\r
+       }\r
+\r
+       /**\r
+        * Set the samlValidate URL of the CAS server.\r
+        * @param $url the samlValidate URL\r
+        * @since 1.1.0 by Joachim Fritschi\r
+        */\r
+       function setServerSamlValidateURL($url = '') {\r
+               global $PHPCAS_CLIENT;\r
+               phpCAS :: traceBegin();\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should only be called after\r
+                                                       ' . __CLASS__ . '::client()');\r
+               }\r
+               if (gettype($url) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $url (should be\r
+                                               `string\')');\r
+               }\r
+               $PHPCAS_CLIENT->setServerSamlValidateURL($url);\r
+               phpCAS :: traceEnd();\r
+       }\r
+\r
+       /**\r
+        * This method returns the URL to be used to login.\r
+        * or phpCAS::isAuthenticated().\r
+        *\r
+        * @return the login name of the authenticated user\r
+        */\r
+       function getServerLogoutURL() {\r
+               global $PHPCAS_CLIENT;\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should not be called before ' . __CLASS__ . '::client() or ' . __CLASS__ . '::proxy()');\r
+               }\r
+               return $PHPCAS_CLIENT->getServerLogoutURL();\r
+       }\r
+\r
+       /**\r
+        * Set the logout URL of the CAS server.\r
+        * @param $url the logout URL\r
+        * @since 0.4.21 by Wyman Chan\r
+        */\r
+       function setServerLogoutURL($url = '') {\r
+               global $PHPCAS_CLIENT;\r
+               phpCAS :: traceBegin();\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should only be called after\r
+                                                       ' . __CLASS__ . '::client()');\r
+               }\r
+               if (gettype($url) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $url (should be\r
+                                               `string\')');\r
+               }\r
+               $PHPCAS_CLIENT->setServerLogoutURL($url);\r
+               phpCAS :: traceEnd();\r
+       }\r
+\r
+       /**\r
+        * This method is used to logout from CAS.\r
+        * @params $params an array that contains the optional url and service parameters that will be passed to the CAS server\r
+        * @public\r
+        */\r
+       function logout($params = "") {\r
+               global $PHPCAS_CLIENT;\r
+               phpCAS :: traceBegin();\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should only be called after ' . __CLASS__ . '::client() or' . __CLASS__ . '::proxy()');\r
+               }\r
+               $parsedParams = array ();\r
+               if ($params != "") {\r
+                       if (is_string($params)) {\r
+                               phpCAS :: error('method `phpCAS::logout($url)\' is now deprecated, use `phpCAS::logoutWithUrl($url)\' instead');\r
+                       }\r
+                       if (!is_array($params)) {\r
+                               phpCAS :: error('type mismatched for parameter $params (should be `array\')');\r
+                       }\r
+                       foreach ($params as $key => $value) {\r
+                               if ($key != "service" && $key != "url") {\r
+                                       phpCAS :: error('only `url\' and `service\' parameters are allowed for method `phpCAS::logout($params)\'');\r
+                               }\r
+                               $parsedParams[$key] = $value;\r
+                       }\r
+               }\r
+               $PHPCAS_CLIENT->logout($parsedParams);\r
+               // never reached\r
+               phpCAS :: traceEnd();\r
+       }\r
+\r
+       /**\r
+        * This method is used to logout from CAS. Halts by redirecting to the CAS server.\r
+        * @param $service a URL that will be transmitted to the CAS server\r
+        */\r
+       function logoutWithRedirectService($service) {\r
+               global $PHPCAS_CLIENT;\r
+               phpCAS :: traceBegin();\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should only be called after ' . __CLASS__ . '::client() or' . __CLASS__ . '::proxy()');\r
+               }\r
+               if (!is_string($service)) {\r
+                       phpCAS :: error('type mismatched for parameter $service (should be `string\')');\r
+               }\r
+               $PHPCAS_CLIENT->logout(array (\r
+                       "service" => $service\r
+               ));\r
+               // never reached\r
+               phpCAS :: traceEnd();\r
+       }\r
+\r
+       /**\r
+        * This method is used to logout from CAS. Halts by redirecting to the CAS server.\r
+        * @param $url a URL that will be transmitted to the CAS server\r
+        */\r
+       function logoutWithUrl($url) {\r
+               global $PHPCAS_CLIENT;\r
+               phpCAS :: traceBegin();\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should only be called after ' . __CLASS__ . '::client() or' . __CLASS__ . '::proxy()');\r
+               }\r
+               if (!is_string($url)) {\r
+                       phpCAS :: error('type mismatched for parameter $url (should be `string\')');\r
+               }\r
+               $PHPCAS_CLIENT->logout(array (\r
+                       "url" => $url\r
+               ));\r
+               // never reached\r
+               phpCAS :: traceEnd();\r
+       }\r
+\r
+       /**\r
+        * This method is used to logout from CAS. Halts by redirecting to the CAS server.\r
+        * @param $service a URL that will be transmitted to the CAS server\r
+        * @param $url a URL that will be transmitted to the CAS server\r
+        */\r
+       function logoutWithRedirectServiceAndUrl($service, $url) {\r
+               global $PHPCAS_CLIENT;\r
+               phpCAS :: traceBegin();\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should only be called after ' . __CLASS__ . '::client() or' . __CLASS__ . '::proxy()');\r
+               }\r
+               if (!is_string($service)) {\r
+                       phpCAS :: error('type mismatched for parameter $service (should be `string\')');\r
+               }\r
+               if (!is_string($url)) {\r
+                       phpCAS :: error('type mismatched for parameter $url (should be `string\')');\r
+               }\r
+               $PHPCAS_CLIENT->logout(array (\r
+                       "service" => $service,\r
+                       "url" => $url\r
+               ));\r
+               // never reached\r
+               phpCAS :: traceEnd();\r
+       }\r
+\r
+       /**\r
+        * Set the fixed URL that will be used by the CAS server to transmit the PGT.\r
+        * When this method is not called, a phpCAS script uses its own URL for the callback.\r
+        *\r
+        * @param $url the URL\r
+        */\r
+       function setFixedCallbackURL($url = '') {\r
+               global $PHPCAS_CLIENT;\r
+               phpCAS :: traceBegin();\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should only be called after ' . __CLASS__ . '::proxy()');\r
+               }\r
+               if (!$PHPCAS_CLIENT->isProxy()) {\r
+                       phpCAS :: error('this method should only be called after ' . __CLASS__ . '::proxy()');\r
+               }\r
+               if (gettype($url) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $url (should be `string\')');\r
+               }\r
+               $PHPCAS_CLIENT->setCallbackURL($url);\r
+               phpCAS :: traceEnd();\r
+       }\r
+\r
+       /**\r
+        * Set the fixed URL that will be set as the CAS service parameter. When this\r
+        * method is not called, a phpCAS script uses its own URL.\r
+        *\r
+        * @param $url the URL\r
+        */\r
+       function setFixedServiceURL($url) {\r
+               global $PHPCAS_CLIENT;\r
+               phpCAS :: traceBegin();\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should only be called after ' . __CLASS__ . '::proxy()');\r
+               }\r
+               if (gettype($url) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $url (should be `string\')');\r
+               }\r
+               $PHPCAS_CLIENT->setURL($url);\r
+               phpCAS :: traceEnd();\r
+       }\r
+\r
+       /**\r
+        * Get the URL that is set as the CAS service parameter.\r
+        */\r
+       function getServiceURL() {\r
+               global $PHPCAS_CLIENT;\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should only be called after ' . __CLASS__ . '::proxy()');\r
+               }\r
+               return ($PHPCAS_CLIENT->getURL());\r
+       }\r
+\r
+       /**\r
+        * Retrieve a Proxy Ticket from the CAS server.\r
+        */\r
+       function retrievePT($target_service, & $err_code, & $err_msg) {\r
+               global $PHPCAS_CLIENT;\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should only be called after ' . __CLASS__ . '::proxy()');\r
+               }\r
+               if (gettype($target_service) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $target_service(should be `string\')');\r
+               }\r
+               return ($PHPCAS_CLIENT->retrievePT($target_service, $err_code, $err_msg));\r
+       }\r
+\r
+       /**\r
+        * Set the certificate of the CAS server.\r
+        *\r
+        * @param $cert the PEM certificate\r
+        */\r
+       function setCasServerCert($cert) {\r
+               global $PHPCAS_CLIENT;\r
+               phpCAS :: traceBegin();\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should only be called after ' . __CLASS__ . '::client() or' . __CLASS__ . '::proxy()');\r
+               }\r
+               if (gettype($cert) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $cert (should be `string\')');\r
+               }\r
+               $PHPCAS_CLIENT->setCasServerCert($cert);\r
+               phpCAS :: traceEnd();\r
+       }\r
+\r
+       /**\r
+        * Set the certificate of the CAS server CA.\r
+        *\r
+        * @param $cert the CA certificate\r
+        */\r
+       function setCasServerCACert($cert) {\r
+               global $PHPCAS_CLIENT;\r
+               phpCAS :: traceBegin();\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should only be called after ' . __CLASS__ . '::client() or' . __CLASS__ . '::proxy()');\r
+               }\r
+               if (gettype($cert) != 'string') {\r
+                       phpCAS :: error('type mismatched for parameter $cert (should be `string\')');\r
+               }\r
+               $PHPCAS_CLIENT->setCasServerCACert($cert);\r
+               phpCAS :: traceEnd();\r
+       }\r
+\r
+       /**\r
+        * Set no SSL validation for the CAS server.\r
+        */\r
+       function setNoCasServerValidation() {\r
+               global $PHPCAS_CLIENT;\r
+               phpCAS :: traceBegin();\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should only be called after ' . __CLASS__ . '::client() or' . __CLASS__ . '::proxy()');\r
+               }\r
+               $PHPCAS_CLIENT->setNoCasServerValidation();\r
+               phpCAS :: traceEnd();\r
+       }\r
+\r
+       /** @} */\r
+\r
+       /**\r
+        * Change CURL options.\r
+        * CURL is used to connect through HTTPS to CAS server\r
+        * @param $key the option key\r
+        * @param $value the value to set\r
+        */\r
+       function setExtraCurlOption($key, $value) {\r
+               global $PHPCAS_CLIENT;\r
+               phpCAS :: traceBegin();\r
+               if (!is_object($PHPCAS_CLIENT)) {\r
+                       phpCAS :: error('this method should only be called after ' . __CLASS__ . '::client() or' . __CLASS__ . '::proxy()');\r
+               }\r
+               $PHPCAS_CLIENT->setExtraCurlOption($key, $value);\r
+               phpCAS :: traceEnd();\r
+       }\r
+\r
+}\r
+\r
+// ########################################################################\r
+// DOCUMENTATION\r
+// ########################################################################\r
+\r
+// ########################################################################\r
+//  MAIN PAGE\r
+\r
+/**\r
+ * @mainpage\r
+ *\r
+ * The following pages only show the source documentation.\r
+ *\r
+ */\r
+\r
+// ########################################################################\r
+//  MODULES DEFINITION\r
+\r
+/** @defgroup public User interface */\r
+\r
+/** @defgroup publicInit Initialization\r
+ *  @ingroup public */\r
+\r
+/** @defgroup publicAuth Authentication\r
+ *  @ingroup public */\r
+\r
+/** @defgroup publicServices Access to external services\r
+ *  @ingroup public */\r
+\r
+/** @defgroup publicConfig Configuration\r
+ *  @ingroup public */\r
+\r
+/** @defgroup publicLang Internationalization\r
+ *  @ingroup publicConfig */\r
+\r
+/** @defgroup publicOutput HTML output\r
+ *  @ingroup publicConfig */\r
+\r
+/** @defgroup publicPGTStorage PGT storage\r
+ *  @ingroup publicConfig */\r
+\r
+/** @defgroup publicDebug Debugging\r
+ *  @ingroup public */\r
+\r
+/** @defgroup internal Implementation */\r
+\r
+/** @defgroup internalAuthentication Authentication\r
+ *  @ingroup internal */\r
+\r
+/** @defgroup internalBasic CAS Basic client features (CAS 1.0, Service Tickets)\r
+ *  @ingroup internal */\r
+\r
+/** @defgroup internalProxy CAS Proxy features (CAS 2.0, Proxy Granting Tickets)\r
+ *  @ingroup internal */\r
+\r
+/** @defgroup internalPGTStorage PGT storage\r
+ *  @ingroup internalProxy */\r
+\r
+/** @defgroup internalPGTStorageFile PGT storage on the filesystem\r
+ *  @ingroup internalPGTStorage */\r
+\r
+/** @defgroup internalCallback Callback from the CAS server\r
+ *  @ingroup internalProxy */\r
+\r
+/** @defgroup internalProxied CAS proxied client features (CAS 2.0, Proxy Tickets)\r
+ *  @ingroup internal */\r
+\r
+/** @defgroup internalConfig Configuration\r
+ *  @ingroup internal */\r
+\r
+/** @defgroup internalOutput HTML output\r
+ *  @ingroup internalConfig */\r
+\r
+/** @defgroup internalLang Internationalization\r
+ *  @ingroup internalConfig\r
+ *\r
+ * To add a new language:\r
+ * - 1. define a new constant PHPCAS_LANG_XXXXXX in CAS/CAS.php\r
+ * - 2. copy any file from CAS/languages to CAS/languages/XXXXXX.php\r
+ * - 3. Make the translations\r
+ */\r
+\r
+/** @defgroup internalDebug Debugging\r
+ *  @ingroup internal */\r
+\r
+/** @defgroup internalMisc Miscellaneous\r
+ *  @ingroup internal */\r
+\r
+// ########################################################################\r
+//  EXAMPLES\r
+\r
+/**\r
+ * @example example_simple.php\r
+ */\r
+/**\r
+ * @example example_proxy.php\r
+ */\r
+/**\r
+ * @example example_proxy2.php\r
+ */\r
+/**\r
+ * @example example_lang.php\r
+ */\r
+/**\r
+ * @example example_html.php\r
+ */\r
+/**\r
+ * @example example_file.php\r
+ */\r
+/**\r
+ * @example example_db.php\r
+ */\r
+/**\r
+ * @example example_service.php\r
+ */\r
+/**\r
+ * @example example_session_proxy.php\r
+ */\r
+/**\r
+ * @example example_session_service.php\r
+ */\r
+/**\r
+ * @example example_gateway.php\r
+ */\r
+/**\r
+ * @example example_custom_urls.php\r
+ */\r
+?>\r
diff --git a/CAS/CAS/PGTStorage/pgt-file.php b/CAS/CAS/PGTStorage/pgt-file.php
new file mode 100644 (file)
index 0000000..e4190a8
--- /dev/null
@@ -0,0 +1,283 @@
+<?php\r
+/*\r
+ * Copyright © 2003-2010, The ESUP-Portail consortium & the JA-SIG Collaborative.\r
+ * All rights reserved.\r
+ * \r
+ * Redistribution and use in source and binary forms, with or without\r
+ * modification, are permitted provided that the following conditions are met:\r
+ * \r
+ *     * Redistributions of source code must retain the above copyright notice,\r
+ *       this list of conditions and the following disclaimer.\r
+ *     * Redistributions in binary form must reproduce the above copyright notice,\r
+ *       this list of conditions and the following disclaimer in the documentation\r
+ *       and/or other materials provided with the distribution.\r
+ *     * Neither the name of the ESUP-Portail consortium & the JA-SIG\r
+ *       Collaborative nor the names of its contributors may be used to endorse or\r
+ *       promote products derived from this software without specific prior\r
+ *       written permission.\r
+\r
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND\r
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\r
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\r
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR\r
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\r
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;\r
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON\r
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\r
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS\r
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r
+ */\r
+/**\r
+ * @file CAS/PGTStorage/pgt-file.php\r
+ * Basic class for PGT file storage\r
+ */\r
+\r
+/**\r
+ * @class PGTStorageFile\r
+ * The PGTStorageFile class is a class for PGT file storage. An instance of \r
+ * this class is returned by CASClient::SetPGTStorageFile().\r
+ *\r
+ * @author Pascal Aubry <pascal.aubry at univ-rennes1.fr>\r
+ *\r
+ * @ingroup internalPGTStorageFile\r
+ */\r
+\r
+class PGTStorageFile extends PGTStorage\r
+{\r
+  /** \r
+   * @addtogroup internalPGTStorageFile \r
+   * @{ \r
+   */\r
+\r
+  /**\r
+   * a string telling where PGT's should be stored on the filesystem. Written by\r
+   * PGTStorageFile::PGTStorageFile(), read by getPath().\r
+   *\r
+   * @private\r
+   */\r
+  var $_path;\r
+\r
+  /**\r
+   * This method returns the name of the directory where PGT's should be stored \r
+   * on the filesystem.\r
+   *\r
+   * @return the name of a directory (with leading and trailing '/')\r
+   *\r
+   * @private\r
+   */\r
+  function getPath()\r
+    {\r
+      return $this->_path;\r
+    }\r
+\r
+  /**\r
+   * a string telling the format to use to store PGT's (plain or xml). Written by\r
+   * PGTStorageFile::PGTStorageFile(), read by getFormat().\r
+   *\r
+   * @private\r
+   */\r
+  var $_format;\r
+\r
+  /**\r
+   * This method returns the format to use when storing PGT's on the filesystem.\r
+   *\r
+   * @return a string corresponding to the format used (plain or xml).\r
+   *\r
+   * @private\r
+   */\r
+  function getFormat()\r
+    {\r
+      return $this->_format;\r
+    }\r
+\r
+  // ########################################################################\r
+  //  DEBUGGING\r
+  // ########################################################################\r
+  \r
+  /**\r
+   * This method returns an informational string giving the type of storage\r
+   * used by the object (used for debugging purposes).\r
+   *\r
+   * @return an informational string.\r
+   * @public\r
+   */\r
+  function getStorageType()\r
+    {\r
+      return "file";\r
+    }\r
+\r
+  /**\r
+   * This method returns an informational string giving informations on the\r
+   * parameters of the storage.(used for debugging purposes).\r
+   *\r
+   * @return an informational string.\r
+   * @public\r
+   */\r
+  function getStorageInfo()\r
+    {\r
+      return 'path=`'.$this->getPath().'\', format=`'.$this->getFormat().'\'';\r
+    }\r
+\r
+  // ########################################################################\r
+  //  CONSTRUCTOR\r
+  // ########################################################################\r
+  \r
+  /**\r
+   * The class constructor, called by CASClient::SetPGTStorageFile().\r
+   *\r
+   * @param $cas_parent the CASClient instance that creates the object.\r
+   * @param $format the format used to store the PGT's (`plain' and `xml' allowed).\r
+   * @param $path the path where the PGT's should be stored\r
+   *\r
+   * @public\r
+   */\r
+  function PGTStorageFile($cas_parent,$format,$path)\r
+    {\r
+      phpCAS::traceBegin();\r
+      // call the ancestor's constructor\r
+      $this->PGTStorage($cas_parent);\r
+\r
+      if (empty($format) ) $format = CAS_PGT_STORAGE_FILE_DEFAULT_FORMAT;\r
+      if (empty($path) ) $path = CAS_PGT_STORAGE_FILE_DEFAULT_PATH;\r
+\r
+      // check that the path is an absolute path\r
+      if (getenv("OS")=="Windows_NT"){\r
+       \r
+        if (!preg_match('`^[a-zA-Z]:`', $path)) {\r
+               phpCAS::error('an absolute path is needed for PGT storage to file');\r
+       }\r
+       \r
+      }\r
+      else\r
+      {\r
+      \r
+       if ( $path[0] != '/' ) {\r
+                       phpCAS::error('an absolute path is needed for PGT storage to file');\r
+       }\r
+\r
+       // store the path (with a leading and trailing '/')      \r
+       $path = preg_replace('|[/]*$|','/',$path);\r
+       $path = preg_replace('|^[/]*|','/',$path);\r
+      }\r
+      \r
+      $this->_path = $path;\r
+      // check the format and store it\r
+      switch ($format) {\r
+      case CAS_PGT_STORAGE_FILE_FORMAT_PLAIN:\r
+      case CAS_PGT_STORAGE_FILE_FORMAT_XML:\r
+       $this->_format = $format;\r
+       break;\r
+      default:\r
+       phpCAS::error('unknown PGT file storage format (`'.CAS_PGT_STORAGE_FILE_FORMAT_PLAIN.'\' and `'.CAS_PGT_STORAGE_FILE_FORMAT_XML.'\' allowed)');\r
+      }\r
+      phpCAS::traceEnd();      \r
+    }\r
+\r
+  // ########################################################################\r
+  //  INITIALIZATION\r
+  // ########################################################################\r
+  \r
+  /**\r
+   * This method is used to initialize the storage. Halts on error.\r
+   *\r
+   * @public\r
+   */\r
+  function init()\r
+    {\r
+      phpCAS::traceBegin();\r
+      // if the storage has already been initialized, return immediatly\r
+      if ( $this->isInitialized() )\r
+       return;\r
+      // call the ancestor's method (mark as initialized)\r
+      parent::init();\r
+      phpCAS::traceEnd();      \r
+    }\r
+\r
+  // ########################################################################\r
+  //  PGT I/O\r
+  // ########################################################################\r
+\r
+  /**\r
+   * This method returns the filename corresponding to a PGT Iou.\r
+   *\r
+   * @param $pgt_iou the PGT iou.\r
+   *\r
+   * @return a filename\r
+   * @private\r
+   */\r
+  function getPGTIouFilename($pgt_iou)\r
+    {\r
+      phpCAS::traceBegin();\r
+      $filename = $this->getPath().$pgt_iou.'.'.$this->getFormat();\r
+      phpCAS::traceEnd($filename);\r
+      return $filename;\r
+    }\r
+  \r
+  /**\r
+   * This method stores a PGT and its corresponding PGT Iou into a file. Echoes a\r
+   * warning on error.\r
+   *\r
+   * @param $pgt the PGT\r
+   * @param $pgt_iou the PGT iou\r
+   *\r
+   * @public\r
+   */\r
+  function write($pgt,$pgt_iou)\r
+         {\r
+         phpCAS::traceBegin();\r
+         $fname = $this->getPGTIouFilename($pgt_iou);\r
+         if(!file_exists($fname)){\r
+                 if ( $f=fopen($fname,"w") ) {\r
+                         if ( fputs($f,$pgt) === FALSE ) {\r
+                                 phpCAS::error('could not write PGT to `'.$fname.'\'');\r
+                         }\r
+                         fclose($f);\r
+                 } else {\r
+                         phpCAS::error('could not open `'.$fname.'\'');\r
+                 }\r
+         }else{\r
+                 phpCAS::error('File exists: `'.$fname.'\'');\r
+         }\r
+         phpCAS::traceEnd();      \r
+         }\r
+\r
+  /**\r
+   * This method reads a PGT corresponding to a PGT Iou and deletes the \r
+   * corresponding file.\r
+   *\r
+   * @param $pgt_iou the PGT iou\r
+   *\r
+   * @return the corresponding PGT, or FALSE on error\r
+   *\r
+   * @public\r
+   */\r
+  function read($pgt_iou)\r
+         {\r
+         phpCAS::traceBegin();\r
+         $pgt = FALSE;\r
+         $fname = $this->getPGTIouFilename($pgt_iou);\r
+         if (file_exists($fname)){\r
+                 if ( !($f=fopen($fname,"r")) ) {\r
+                         phpCAS::trace('could not open `'.$fname.'\'');\r
+                 } else {\r
+                         if ( ($pgt=fgets($f)) === FALSE ) {\r
+                                 phpCAS::trace('could not read PGT from `'.$fname.'\'');\r
+                         } \r
+                         fclose($f);\r
+                 }\r
+                 \r
+                 // delete the PGT file\r
+                 @unlink($fname);\r
+         }else{\r
+                 phpCAS::trace('No such file `'.$fname.'\'');\r
+         }\r
+         phpCAS::traceEnd($pgt);\r
+         return $pgt;\r
+         }\r
+  \r
+  /** @} */\r
+  \r
+}\r
+\r
+  \r
+?>
\ No newline at end of file
diff --git a/CAS/CAS/PGTStorage/pgt-main.php b/CAS/CAS/PGTStorage/pgt-main.php
new file mode 100644 (file)
index 0000000..aaf377f
--- /dev/null
@@ -0,0 +1,214 @@
+<?php\r
+/*\r
+ * Copyright © 2003-2010, The ESUP-Portail consortium & the JA-SIG Collaborative.\r
+ * All rights reserved.\r
+ * \r
+ * Redistribution and use in source and binary forms, with or without\r
+ * modification, are permitted provided that the following conditions are met:\r
+ * \r
+ *     * Redistributions of source code must retain the above copyright notice,\r
+ *       this list of conditions and the following disclaimer.\r
+ *     * Redistributions in binary form must reproduce the above copyright notice,\r
+ *       this list of conditions and the following disclaimer in the documentation\r
+ *       and/or other materials provided with the distribution.\r
+ *     * Neither the name of the ESUP-Portail consortium & the JA-SIG\r
+ *       Collaborative nor the names of its contributors may be used to endorse or\r
+ *       promote products derived from this software without specific prior\r
+ *       written permission.\r
+\r
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND\r
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\r
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\r
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR\r
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\r
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;\r
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON\r
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\r
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS\r
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r
+ */\r
+/**\r
+ * @file CAS/PGTStorage/pgt-main.php\r
+ * Basic class for PGT storage\r
+ */\r
+\r
+/**\r
+ * @class PGTStorage\r
+ * The PGTStorage class is a generic class for PGT storage. This class should\r
+ * not be instanciated itself but inherited by specific PGT storage classes.\r
+ *\r
+ * @author   Pascal Aubry <pascal.aubry at univ-rennes1.fr>\r
+ *\r
+ * @ingroup internalPGTStorage\r
+ */\r
+\r
+class PGTStorage\r
+{\r
+  /** \r
+   * @addtogroup internalPGTStorage\r
+   * @{ \r
+   */\r
+\r
+  // ########################################################################\r
+  //  CONSTRUCTOR\r
+  // ########################################################################\r
+  \r
+  /**\r
+   * The constructor of the class, should be called only by inherited classes.\r
+   *\r
+   * @param $cas_parent the CASclient instance that creates the current object.\r
+   *\r
+   * @protected\r
+   */\r
+  function PGTStorage($cas_parent)\r
+    {\r
+      phpCAS::traceBegin();\r
+      if ( !$cas_parent->isProxy() ) {\r
+       phpCAS::error('defining PGT storage makes no sense when not using a CAS proxy'); \r
+      }\r
+      phpCAS::traceEnd();\r
+    }\r
+\r
+  // ########################################################################\r
+  //  DEBUGGING\r
+  // ########################################################################\r
+  \r
+  /**\r
+   * This virtual method returns an informational string giving the type of storage\r
+   * used by the object (used for debugging purposes).\r
+   *\r
+   * @public\r
+   */\r
+  function getStorageType()\r
+    {\r
+      phpCAS::error(__CLASS__.'::'.__FUNCTION__.'() should never be called'); \r
+    }\r
+\r
+  /**\r
+   * This virtual method returns an informational string giving informations on the\r
+   * parameters of the storage.(used for debugging purposes).\r
+   *\r
+   * @public\r
+   */\r
+  function getStorageInfo()\r
+    {\r
+      phpCAS::error(__CLASS__.'::'.__FUNCTION__.'() should never be called'); \r
+    }\r
+\r
+  // ########################################################################\r
+  //  ERROR HANDLING\r
+  // ########################################################################\r
+  \r
+  /**\r
+   * string used to store an error message. Written by PGTStorage::setErrorMessage(),\r
+   * read by PGTStorage::getErrorMessage().\r
+   *\r
+   * @hideinitializer\r
+   * @private\r
+   * @deprecated not used.\r
+   */\r
+  var $_error_message=FALSE;\r
+\r
+  /**\r
+   * This method sets en error message, which can be read later by \r
+   * PGTStorage::getErrorMessage().\r
+   *\r
+   * @param $error_message an error message\r
+   *\r
+   * @protected\r
+   * @deprecated not used.\r
+   */\r
+  function setErrorMessage($error_message)\r
+    {\r
+      $this->_error_message = $error_message;\r
+    }\r
+\r
+  /**\r
+   * This method returns an error message set by PGTStorage::setErrorMessage().\r
+   *\r
+   * @return an error message when set by PGTStorage::setErrorMessage(), FALSE\r
+   * otherwise.\r
+   *\r
+   * @public\r
+   * @deprecated not used.\r
+   */\r
+  function getErrorMessage()\r
+    {\r
+      return $this->_error_message;\r
+    }\r
+\r
+  // ########################################################################\r
+  //  INITIALIZATION\r
+  // ########################################################################\r
+\r
+  /**\r
+   * a boolean telling if the storage has already been initialized. Written by \r
+   * PGTStorage::init(), read by PGTStorage::isInitialized().\r
+   *\r
+   * @hideinitializer\r
+   * @private\r
+   */\r
+  var $_initialized = FALSE;\r
+\r
+  /**\r
+   * This method tells if the storage has already been intialized.\r
+   *\r
+   * @return a boolean\r
+   *\r
+   * @protected\r
+   */\r
+  function isInitialized()\r
+    {\r
+      return $this->_initialized;\r
+    }\r
+\r
+  /**\r
+   * This virtual method initializes the object.\r
+   *\r
+   * @protected\r
+   */\r
+  function init()\r
+    {\r
+      $this->_initialized = TRUE;\r
+    }\r
+\r
+  // ########################################################################\r
+  //  PGT I/O\r
+  // ########################################################################\r
+\r
+  /**\r
+   * This virtual method stores a PGT and its corresponding PGT Iuo.\r
+   * @note Should never be called.\r
+   *\r
+   * @param $pgt the PGT\r
+   * @param $pgt_iou the PGT iou\r
+   *\r
+   * @protected\r
+   */\r
+  function write($pgt,$pgt_iou)\r
+    {\r
+      phpCAS::error(__CLASS__.'::'.__FUNCTION__.'() should never be called'); \r
+    }\r
+\r
+  /**\r
+   * This virtual method reads a PGT corresponding to a PGT Iou and deletes\r
+   * the corresponding storage entry.\r
+   * @note Should never be called.\r
+   *\r
+   * @param $pgt_iou the PGT iou\r
+   *\r
+   * @protected\r
+   */\r
+  function read($pgt_iou)\r
+    {\r
+      phpCAS::error(__CLASS__.'::'.__FUNCTION__.'() should never be called'); \r
+    }\r
+\r
+  /** @} */\r
+  \r
+} \r
+\r
+// include specific PGT storage classes\r
+include_once(dirname(__FILE__).'/pgt-file.php'); \r
+  \r
+?>
\ No newline at end of file
diff --git a/CAS/CAS/client.php b/CAS/CAS/client.php
new file mode 100644 (file)
index 0000000..74d6893
--- /dev/null
@@ -0,0 +1,2776 @@
+<?php
+
+/*
+ * Copyright © 2003-2010, 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.
+ */
+
+/**
+ * @file CAS/client.php
+ * Main class of the phpCAS library
+ */
+
+// include internationalization stuff
+include_once(dirname(__FILE__).'/languages/languages.php');
+
+// include PGT storage classes
+include_once(dirname(__FILE__).'/PGTStorage/pgt-main.php');
+
+/**
+ * @class CASClient
+ * The CASClient class is a client interface that provides CAS authentication
+ * to PHP applications.
+ *
+ * @author Pascal Aubry <pascal.aubry at univ-rennes1.fr>
+ */
+
+class CASClient
+{
+       
+       // XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+       // XX                                                                    XX
+       // XX                          CONFIGURATION                             XX
+       // XX                                                                    XX
+       // XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+       
+       // ########################################################################
+       //  HTML OUTPUT
+       // ########################################################################
+       /**
+        * @addtogroup internalOutput
+        * @{
+        */  
+       
+       /**
+        * This method filters a string by replacing special tokens by appropriate values
+        * and prints it. The corresponding tokens are taken into account:
+        * - __CAS_VERSION__
+        * - __PHPCAS_VERSION__
+        * - __SERVER_BASE_URL__
+        *
+        * Used by CASClient::PrintHTMLHeader() and CASClient::printHTMLFooter().
+        *
+        * @param $str the string to filter and output
+        *
+        * @private
+        */
+       function HTMLFilterOutput($str)
+               {
+               $str = str_replace('__CAS_VERSION__',$this->getServerVersion(),$str);
+               $str = str_replace('__PHPCAS_VERSION__',phpCAS::getVersion(),$str);
+               $str = str_replace('__SERVER_BASE_URL__',$this->getServerBaseURL(),$str);
+               echo $str;
+               }
+       
+       /**
+        * A string used to print the header of HTML pages. Written by CASClient::setHTMLHeader(),
+        * read by CASClient::printHTMLHeader().
+        *
+        * @hideinitializer
+        * @private
+        * @see CASClient::setHTMLHeader, CASClient::printHTMLHeader()
+        */
+       var $_output_header = '';
+       
+       /**
+        * This method prints the header of the HTML output (after filtering). If
+        * CASClient::setHTMLHeader() was not used, a default header is output.
+        *
+        * @param $title the title of the page
+        *
+        * @see HTMLFilterOutput()
+        * @private
+        */
+       function printHTMLHeader($title)
+               {
+               $this->HTMLFilterOutput(str_replace('__TITLE__',
+                       $title,
+                       (empty($this->_output_header)
+                                       ? '<html><head><title>__TITLE__</title></head><body><h1>__TITLE__</h1>'
+                                                       : $this->_output_header)
+               )
+               );
+               }
+       
+       /**
+        * A string used to print the footer of HTML pages. Written by CASClient::setHTMLFooter(),
+        * read by printHTMLFooter().
+        *
+        * @hideinitializer
+        * @private
+        * @see CASClient::setHTMLFooter, CASClient::printHTMLFooter()
+        */
+       var $_output_footer = '';
+       
+       /**
+        * This method prints the footer of the HTML output (after filtering). If
+        * CASClient::setHTMLFooter() was not used, a default footer is output.
+        *
+        * @see HTMLFilterOutput()
+        * @private
+        */
+       function printHTMLFooter()
+               {
+               $this->HTMLFilterOutput(empty($this->_output_footer)
+                       ?('<hr><address>phpCAS __PHPCAS_VERSION__ '.$this->getString(CAS_STR_USING_SERVER).' <a href="__SERVER_BASE_URL__">__SERVER_BASE_URL__</a> (CAS __CAS_VERSION__)</a></address></body></html>')
+                                       :$this->_output_footer);
+               }
+       
+       /**
+        * This method set the HTML header used for all outputs.
+        *
+        * @param $header the HTML header.
+        *
+        * @public
+        */
+       function setHTMLHeader($header)
+               {
+               $this->_output_header = $header;
+               }
+       
+       /**
+        * This method set the HTML footer used for all outputs.
+        *
+        * @param $footer the HTML footer.
+        *
+        * @public
+        */
+       function setHTMLFooter($footer)
+               {
+               $this->_output_footer = $footer;
+               }
+       
+       /** @} */
+       // ########################################################################
+       //  INTERNATIONALIZATION
+       // ########################################################################
+       /**
+        * @addtogroup internalLang
+        * @{
+        */  
+       /**
+        * A string corresponding to the language used by phpCAS. Written by 
+        * CASClient::setLang(), read by CASClient::getLang().
+        
+        * @note debugging information is always in english (debug purposes only).
+        *
+        * @hideinitializer
+        * @private
+        * @sa CASClient::_strings, CASClient::getString()
+        */
+       var $_lang = '';
+       
+       /**
+        * This method returns the language used by phpCAS.
+        *
+        * @return a string representing the language
+        *
+        * @private
+        */
+       function getLang()
+               {
+               if ( empty($this->_lang) )
+                       $this->setLang(PHPCAS_LANG_DEFAULT);
+               return $this->_lang;
+               }
+       
+       /**
+        * array containing the strings used by phpCAS. Written by CASClient::setLang(), read by 
+        * CASClient::getString() and used by CASClient::setLang().
+        *
+        * @note This array is filled by instructions in CAS/languages/<$this->_lang>.php
+        *
+        * @private
+        * @see CASClient::_lang, CASClient::getString(), CASClient::setLang(), CASClient::getLang()
+        */
+       var $_strings;
+       
+       /**
+        * This method returns a string depending on the language.
+        *
+        * @param $str the index of the string in $_string.
+        *
+        * @return the string corresponding to $index in $string.
+        *
+        * @private
+        */
+       function getString($str)
+               {
+               // call CASclient::getLang() to be sure the language is initialized
+               $this->getLang();
+               
+               if ( !isset($this->_strings[$str]) ) {
+                       trigger_error('string `'.$str.'\' not defined for language `'.$this->getLang().'\'',E_USER_ERROR);
+               }
+               return $this->_strings[$str];
+               }
+       
+       /**
+        * This method is used to set the language used by phpCAS. 
+        * @note Can be called only once.
+        *
+        * @param $lang a string representing the language.
+        *
+        * @public
+        * @sa CAS_LANG_FRENCH, CAS_LANG_ENGLISH
+        */
+       function setLang($lang)
+               {
+               // include the corresponding language file
+               include_once(dirname(__FILE__).'/languages/'.$lang.'.php');
+               
+               if ( !is_array($this->_strings) ) {
+                       trigger_error('language `'.$lang.'\' is not implemented',E_USER_ERROR);
+               }
+               $this->_lang = $lang;
+               }
+       
+       /** @} */
+       // ########################################################################
+       //  CAS SERVER CONFIG
+       // ########################################################################
+       /**
+        * @addtogroup internalConfig
+        * @{
+        */  
+       
+       /**
+        * a record to store information about the CAS server.
+        * - $_server["version"]: the version of the CAS server
+        * - $_server["hostname"]: the hostname of the CAS server
+        * - $_server["port"]: the port the CAS server is running on
+        * - $_server["uri"]: the base URI the CAS server is responding on
+        * - $_server["base_url"]: the base URL of the CAS server
+        * - $_server["login_url"]: the login URL of the CAS server
+        * - $_server["service_validate_url"]: the service validating URL of the CAS server
+        * - $_server["proxy_url"]: the proxy URL of the CAS server
+        * - $_server["proxy_validate_url"]: the proxy validating URL of the CAS server
+        * - $_server["logout_url"]: the logout URL of the CAS server
+        *
+        * $_server["version"], $_server["hostname"], $_server["port"] and $_server["uri"]
+        * are written by CASClient::CASClient(), read by CASClient::getServerVersion(), 
+        * CASClient::getServerHostname(), CASClient::getServerPort() and CASClient::getServerURI().
+        *
+        * The other fields are written and read by CASClient::getServerBaseURL(), 
+        * CASClient::getServerLoginURL(), CASClient::getServerServiceValidateURL(), 
+        * CASClient::getServerProxyValidateURL() and CASClient::getServerLogoutURL().
+        *
+        * @hideinitializer
+        * @private
+        */
+       var $_server = array(
+               'version' => -1,
+               'hostname' => 'none',
+               'port' => -1,
+               'uri' => 'none'
+       );
+       
+       /**
+        * This method is used to retrieve the version of the CAS server.
+        * @return the version of the CAS server.
+        * @private
+        */
+       function getServerVersion()
+               { 
+               return $this->_server['version']; 
+               }
+       
+       /**
+        * This method is used to retrieve the hostname of the CAS server.
+        * @return the hostname of the CAS server.
+        * @private
+        */
+       function getServerHostname()
+               { return $this->_server['hostname']; }
+       
+       /**
+        * This method is used to retrieve the port of the CAS server.
+        * @return the port of the CAS server.
+        * @private
+        */
+       function getServerPort()
+               { return $this->_server['port']; }
+       
+       /**
+        * This method is used to retrieve the URI of the CAS server.
+        * @return a URI.
+        * @private
+        */
+       function getServerURI()
+               { return $this->_server['uri']; }
+       
+       /**
+        * This method is used to retrieve the base URL of the CAS server.
+        * @return a URL.
+        * @private
+        */
+       function getServerBaseURL()
+               { 
+                       // the URL is build only when needed
+                       if ( empty($this->_server['base_url']) ) {
+                               $this->_server['base_url'] = 'https://' . $this->getServerHostname();
+                               if ($this->getServerPort()!=443) {
+                                       $this->_server['base_url'] .= ':'
+                                       .$this->getServerPort();
+                               }
+                               $this->_server['base_url'] .= $this->getServerURI();
+                       }
+                       return $this->_server['base_url'];
+               }
+       
+       /**
+        * This method is used to retrieve the login URL of the CAS server.
+        * @param $gateway true to check authentication, false to force it
+        * @param $renew true to force the authentication with the CAS server
+        * NOTE : It is recommended that CAS implementations ignore the
+        "gateway" parameter if "renew" is set
+        * @return a URL.
+        * @private
+        */
+       function getServerLoginURL($gateway=false,$renew=false) {
+               phpCAS::traceBegin();
+               // the URL is build only when needed
+               if ( empty($this->_server['login_url']) ) {
+                       $this->_server['login_url'] = $this->getServerBaseURL();
+                       $this->_server['login_url'] .= 'login?service=';
+                       // $this->_server['login_url'] .= preg_replace('/&/','%26',$this->getURL());
+                       $this->_server['login_url'] .= urlencode($this->getURL());
+                       if($renew) {
+                               // It is recommended that when the "renew" parameter is set, its value be "true"
+                               $this->_server['login_url'] .= '&renew=true';
+                       } elseif ($gateway) {
+                               // It is recommended that when the "gateway" parameter is set, its value be "true"
+                               $this->_server['login_url'] .= '&gateway=true';
+                       }
+               }
+               phpCAS::traceEnd($this->_server['login_url']);
+               return $this->_server['login_url'];
+       } 
+       
+       /**
+        * This method sets the login URL of the CAS server.
+        * @param $url the login URL
+        * @private
+        * @since 0.4.21 by Wyman Chan
+        */
+       function setServerLoginURL($url)
+               {
+               return $this->_server['login_url'] = $url;
+               }
+       
+       
+       /**
+        * This method sets the serviceValidate URL of the CAS server.
+        * @param $url the serviceValidate URL
+        * @private
+        * @since 1.1.0 by Joachim Fritschi
+        */
+       function setServerServiceValidateURL($url)
+               {
+               return $this->_server['service_validate_url'] = $url;
+               }
+       
+       
+       /**
+        * This method sets the proxyValidate URL of the CAS server.
+        * @param $url the proxyValidate URL
+        * @private
+        * @since 1.1.0 by Joachim Fritschi
+        */
+       function setServerProxyValidateURL($url)
+               {
+               return $this->_server['proxy_validate_url'] = $url;
+               }
+       
+       
+       /**
+        * This method sets the samlValidate URL of the CAS server.
+        * @param $url the samlValidate URL
+        * @private
+        * @since 1.1.0 by Joachim Fritschi
+        */
+       function setServerSamlValidateURL($url)
+               {
+               return $this->_server['saml_validate_url'] = $url;
+               }
+       
+       
+       /**
+        * This method is used to retrieve the service validating URL of the CAS server.
+        * @return a URL.
+        * @private
+        */
+       function getServerServiceValidateURL()
+               { 
+               // the URL is build only when needed
+               if ( empty($this->_server['service_validate_url']) ) {
+                       switch ($this->getServerVersion()) {
+                               case CAS_VERSION_1_0:
+                                       $this->_server['service_validate_url'] = $this->getServerBaseURL().'validate';
+                                       break;
+                               case CAS_VERSION_2_0:
+                                       $this->_server['service_validate_url'] = $this->getServerBaseURL().'serviceValidate';
+                                       break;
+                       }
+               }
+               //      return $this->_server['service_validate_url'].'?service='.preg_replace('/&/','%26',$this->getURL()); 
+               return $this->_server['service_validate_url'].'?service='.urlencode($this->getURL()); 
+               }
+       /**
+        * This method is used to retrieve the SAML validating URL of the CAS server.
+        * @return a URL.
+        * @private
+        */
+       function getServerSamlValidateURL()
+               {
+               phpCAS::traceBegin();
+               // the URL is build only when needed
+               if ( empty($this->_server['saml_validate_url']) ) {
+                       switch ($this->getServerVersion()) {
+                               case SAML_VERSION_1_1:
+                                       $this->_server['saml_validate_url'] = $this->getServerBaseURL().'samlValidate';
+                                       break;
+                       }
+               }
+               phpCAS::traceEnd($this->_server['saml_validate_url'].'?TARGET='.urlencode($this->getURL()));
+               return $this->_server['saml_validate_url'].'?TARGET='.urlencode($this->getURL());
+               }
+       /**
+        * This method is used to retrieve the proxy validating URL of the CAS server.
+        * @return a URL.
+        * @private
+        */
+       function getServerProxyValidateURL()
+               { 
+               // the URL is build only when needed
+               if ( empty($this->_server['proxy_validate_url']) ) {
+                       switch ($this->getServerVersion()) {
+                               case CAS_VERSION_1_0:
+                                       $this->_server['proxy_validate_url'] = '';
+                                       break;
+                               case CAS_VERSION_2_0:
+                                       $this->_server['proxy_validate_url'] = $this->getServerBaseURL().'proxyValidate';
+                                       break;
+                       }
+               }
+               //      return $this->_server['proxy_validate_url'].'?service='.preg_replace('/&/','%26',$this->getURL()); 
+               return $this->_server['proxy_validate_url'].'?service='.urlencode($this->getURL()); 
+               }
+       
+       /**
+        * This method is used to retrieve the proxy URL of the CAS server.
+        * @return a URL.
+        * @private
+        */
+       function getServerProxyURL()
+               { 
+               // the URL is build only when needed
+               if ( empty($this->_server['proxy_url']) ) {
+                       switch ($this->getServerVersion()) {
+                               case CAS_VERSION_1_0:
+                                       $this->_server['proxy_url'] = '';
+                                       break;
+                               case CAS_VERSION_2_0:
+                                       $this->_server['proxy_url'] = $this->getServerBaseURL().'proxy';
+                                       break;
+                       }
+               }
+               return $this->_server['proxy_url']; 
+               }
+       
+       /**
+        * This method is used to retrieve the logout URL of the CAS server.
+        * @return a URL.
+        * @private
+        */
+       function getServerLogoutURL()
+               { 
+               // the URL is build only when needed
+               if ( empty($this->_server['logout_url']) ) {
+                       $this->_server['logout_url'] = $this->getServerBaseURL().'logout';
+               }
+               return $this->_server['logout_url']; 
+               }
+       
+       /**
+        * This method sets the logout URL of the CAS server.
+        * @param $url the logout URL
+        * @private
+        * @since 0.4.21 by Wyman Chan
+        */
+       function setServerLogoutURL($url)
+               {
+               return $this->_server['logout_url'] = $url;
+               }
+       
+       /**
+        * An array to store extra curl options.
+        */     
+       var $_curl_options = array();
+       
+       /**
+        * This method is used to set additional user curl options.
+        */
+       function setExtraCurlOption($key, $value)
+               {
+               $this->_curl_options[$key] = $value;
+               }
+       
+       /**
+        * This method checks to see if the request is secured via HTTPS
+        * @return true if https, false otherwise
+        * @private
+        */
+       function isHttps() {
+               //if ( isset($_SERVER['HTTPS']) && !empty($_SERVER['HTTPS']) ) {
+               //0.4.24 by Hinnack
+               if ( isset($_SERVER['HTTPS']) && !empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') {
+                       return true;
+               } else {
+                       return false;
+               }
+       }
+       
+       // ########################################################################
+       //  CONSTRUCTOR
+       // ########################################################################
+       /**
+        * CASClient constructor.
+        *
+        * @param $server_version the version of the CAS server
+        * @param $proxy TRUE if the CAS client is a CAS proxy, FALSE otherwise
+        * @param $server_hostname the hostname of the CAS server
+        * @param $server_port the port the CAS server is running on
+        * @param $server_uri the URI the CAS server is responding on
+        * @param $start_session Have phpCAS start PHP sessions (default true)
+        *
+        * @return a newly created CASClient object
+        *
+        * @public
+        */
+       function CASClient(
+                                          $server_version,
+                                          $proxy,
+                                          $server_hostname,
+                                          $server_port,
+                                          $server_uri,
+                                          $start_session = true) {
+               
+               phpCAS::traceBegin();
+               
+               // the redirect header() call and DOM parsing code from domxml-php4-php5.php won't work in PHP4 compatibility mode
+               if (version_compare(PHP_VERSION,'5','>=') && ini_get('zend.ze1_compatibility_mode')) {
+                       phpCAS::error('phpCAS cannot support zend.ze1_compatibility_mode. Sorry.');
+               }
+               $this->_start_session = $start_session;
+
+               if ($this->_start_session && session_id() !== "")
+               {
+                       phpCAS :: error("Another session was started before phpcas. Either disable the session" .
+                               " handling for phpcas in the client() call or modify your application to leave" .
+                               " session handling to phpcas");                 
+               }
+               // skip Session Handling for logout requests and if don't want it'
+               if ($start_session && !$this->isLogoutRequest())
+               {
+                       phpCAS :: trace("Starting a new session");
+                       session_start();
+               }
+               
+               
+               // are we in proxy mode ?
+               $this->_proxy = $proxy;
+               
+               //check version
+               switch ($server_version) {
+                       case CAS_VERSION_1_0:
+                               if ( $this->isProxy() )
+                                       phpCAS::error('CAS proxies are not supported in CAS '
+                                               .$server_version);
+                               break;
+                       case CAS_VERSION_2_0:
+                               break;
+                       case SAML_VERSION_1_1:
+                               break;
+                       default:
+                               phpCAS::error('this version of CAS (`'
+                                       .$server_version
+                                       .'\') is not supported by phpCAS '
+                                       .phpCAS::getVersion());
+               }
+               $this->_server['version'] = $server_version;
+               
+               // check hostname
+               if ( empty($server_hostname) 
+                               || !preg_match('/[\.\d\-abcdefghijklmnopqrstuvwxyz]*/',$server_hostname) ) {
+                       phpCAS::error('bad CAS server hostname (`'.$server_hostname.'\')');
+               }
+               $this->_server['hostname'] = $server_hostname;
+               
+               // check port
+               if ( $server_port == 0 
+                       || !is_int($server_port) ) {
+                       phpCAS::error('bad CAS server port (`'.$server_hostname.'\')');
+               }
+               $this->_server['port'] = $server_port;
+               
+               // check URI
+               if ( !preg_match('/[\.\d\-_abcdefghijklmnopqrstuvwxyz\/]*/',$server_uri) ) {
+                       phpCAS::error('bad CAS server URI (`'.$server_uri.'\')');
+               }
+               // add leading and trailing `/' and remove doubles      
+               $server_uri = preg_replace('/\/\//','/','/'.$server_uri.'/');
+               $this->_server['uri'] = $server_uri;
+               
+               // set to callback mode if PgtIou and PgtId CGI GET parameters are provided 
+               if ( $this->isProxy() ) {
+                       $this->setCallbackMode(!empty($_GET['pgtIou'])&&!empty($_GET['pgtId']));
+               }
+               
+               if ( $this->isCallbackMode() ) {
+                       //callback mode: check that phpCAS is secured
+                       if ( !$this->isHttps() ) {
+                               phpCAS::error('CAS proxies must be secured to use phpCAS; PGT\'s will not be received from the CAS server');
+                       }
+               } else {
+                       //normal mode: get ticket and remove it from CGI parameters for developpers
+                       $ticket = (isset($_GET['ticket']) ? $_GET['ticket'] : null);
+                       switch ($this->getServerVersion()) {
+                               case CAS_VERSION_1_0: // check for a Service Ticket
+                                       if( preg_match('/^ST-/',$ticket) ) {
+                                               phpCAS::trace('ST \''.$ticket.'\' found');
+                                               //ST present
+                                               $this->setST($ticket);
+                                               //ticket has been taken into account, unset it to hide it to applications
+                                               unset($_GET['ticket']);
+                                       } else if ( !empty($ticket) ) {
+                                               //ill-formed ticket, halt
+                                               phpCAS::error('ill-formed ticket found in the URL (ticket=`'.htmlentities($ticket).'\')');
+                                       }
+                                       break;
+                               case CAS_VERSION_2_0: // check for a Service or Proxy Ticket
+                                       if( preg_match('/^[SP]T-/',$ticket) ) {
+                                               phpCAS::trace('ST or PT \''.$ticket.'\' found');
+                                               $this->setPT($ticket);
+                                               unset($_GET['ticket']);
+                                       } else if ( !empty($ticket) ) {
+                                               //ill-formed ticket, halt
+                                               phpCAS::error('ill-formed ticket found in the URL (ticket=`'.htmlentities($ticket).'\')');
+                                       } 
+                                       break;
+                               case SAML_VERSION_1_1: // SAML just does Service Tickets
+                                       if( preg_match('/^[SP]T-/',$ticket) ) {
+                                               phpCAS::trace('SA \''.$ticket.'\' found');
+                                               $this->setSA($ticket);
+                                               unset($_GET['ticket']);
+                                       } else if ( !empty($ticket) ) {
+                                               //ill-formed ticket, halt
+                                               phpCAS::error('ill-formed ticket found in the URL (ticket=`'.htmlentities($ticket).'\')');
+                                       }
+                                       break;
+                       }
+               }
+               phpCAS::traceEnd();
+       }
+       
+       /** @} */
+       
+       // XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+       // XX                                                                    XX
+       // XX                           Session Handling                         XX
+       // XX                                                                    XX
+       // XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+
+       /**
+       * A variable to whether phpcas will use its own session handling. Default = true
+       * @hideinitializer
+       * @private
+       */
+       var $_start_session = true;
+
+       function setStartSession($session)
+       {
+               $this->_start_session = session;
+       }
+
+       function getStartSession($session)
+       {
+               $this->_start_session = session;
+       }
+
+               /**
+        * Renaming the session 
+        */
+       function renameSession($ticket)
+       {
+               phpCAS::traceBegin();
+               if($this->_start_session){
+                       if (!empty ($this->_user))
+                       {
+                               $old_session = $_SESSION;
+                               session_destroy();
+                               // set up a new session, of name based on the ticket
+                               $session_id = preg_replace('/[^\w]/', '', $ticket);
+                               phpCAS :: trace("Session ID: ".$session_id);
+                               session_id($session_id);
+                               session_start();
+                               phpCAS :: trace("Restoring old session vars");
+                               $_SESSION = $old_session;
+                       } else
+                       {
+                               phpCAS :: error('Session should only be renamed after successfull authentication');
+                       }
+               }else{
+                       phpCAS :: trace("Skipping session rename since phpCAS is not handling the session.");                   
+               }
+               phpCAS::traceEnd();             
+       }       
+       
+       // XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+       // XX                                                                    XX
+       // XX                           AUTHENTICATION                           XX
+       // XX                                                                    XX
+       // XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+       
+       /**
+        * @addtogroup internalAuthentication
+        * @{
+        */  
+       
+       /**
+        * The Authenticated user. Written by CASClient::setUser(), read by CASClient::getUser().
+        * @attention client applications should use phpCAS::getUser().
+        *
+        * @hideinitializer
+        * @private
+        */
+       var $_user = '';
+       
+       /**
+        * This method sets the CAS user's login name.
+        *
+        * @param $user the login name of the authenticated user.
+        *
+        * @private
+        */
+       function setUser($user)
+               {
+               $this->_user = $user;
+               }
+       
+       /**
+        * This method returns the CAS user's login name.
+        * @warning should be called only after CASClient::forceAuthentication() or 
+        * CASClient::isAuthenticated(), otherwise halt with an error.
+        *
+        * @return the login name of the authenticated user
+        */
+       function getUser()
+               {
+               if ( empty($this->_user) ) {
+                       phpCAS::error('this method should be used only after '.__CLASS__.'::forceAuthentication() or '.__CLASS__.'::isAuthenticated()');
+               }
+               return $this->_user;
+               }
+       
+       
+       
+       /***********************************************************************************************************************
+        * Atrributes section
+        * 
+        * @author Matthias Crauwels <matthias.crauwels@ugent.be>, Ghent University, Belgium
+        * 
+        ***********************************************************************************************************************/
+       /**
+        * The Authenticated users attributes. Written by CASClient::setAttributes(), read by CASClient::getAttributes().
+        * @attention client applications should use phpCAS::getAttributes().
+        *
+        * @hideinitializer
+        * @private
+        */     
+       var $_attributes = array();
+       
+       function setAttributes($attributes)     
+               { $this->_attributes = $attributes; }
+       
+       function getAttributes() {
+               if ( empty($this->_user) ) { // if no user is set, there shouldn't be any attributes also...
+                       phpCAS::error('this method should be used only after '.__CLASS__.'::forceAuthentication() or '.__CLASS__.'::isAuthenticated()');
+               }
+               return $this->_attributes;
+       }
+       
+       function hasAttributes()
+               { return !empty($this->_attributes); }
+       
+       function hasAttribute($key)
+               { return (is_array($this->_attributes) && array_key_exists($key, $this->_attributes)); }
+       
+       function getAttribute($key)     {
+               if($this->hasAttribute($key)) {
+                       return $this->_attributes[$key];
+               }
+       }
+       
+       /**
+        * This method is called to renew the authentication of the user
+        * If the user is authenticated, renew the connection
+        * If not, redirect to CAS
+        * @public
+        */
+       function renewAuthentication(){
+               phpCAS::traceBegin();
+               // Either way, the user is authenticated by CAS
+               if( isset( $_SESSION['phpCAS']['auth_checked'] ) )
+                       unset($_SESSION['phpCAS']['auth_checked']);
+               if ( $this->isAuthenticated() ) {
+                       phpCAS::trace('user already authenticated; renew');
+                       $this->redirectToCas(false,true);
+               } else {
+                       $this->redirectToCas();
+               }
+               phpCAS::traceEnd();
+       }
+       
+       /**
+        * This method is called to be sure that the user is authenticated. When not 
+        * authenticated, halt by redirecting to the CAS server; otherwise return TRUE.
+        * @return TRUE when the user is authenticated; otherwise halt.
+        * @public
+        */
+       function forceAuthentication()
+               {
+               phpCAS::traceBegin();
+               
+               if ( $this->isAuthenticated() ) {
+                       // the user is authenticated, nothing to be done.
+                       phpCAS::trace('no need to authenticate');
+                       $res = TRUE;
+               } else {
+                       // the user is not authenticated, redirect to the CAS server
+                       if (isset($_SESSION['phpCAS']['auth_checked'])) {
+                               unset($_SESSION['phpCAS']['auth_checked']);
+                       }
+                       $this->redirectToCas(FALSE/* no gateway */);    
+                       // never reached
+                       $res = FALSE;
+               }
+               phpCAS::traceEnd($res);
+               return $res;
+               }
+       
+       /**
+        * An integer that gives the number of times authentication will be cached before rechecked.
+        *
+        * @hideinitializer
+        * @private
+        */
+       var $_cache_times_for_auth_recheck = 0;
+       
+       /**
+        * Set the number of times authentication will be cached before rechecked.
+        *
+        * @param $n an integer.
+        *
+        * @public
+        */
+       function setCacheTimesForAuthRecheck($n)
+               {
+               $this->_cache_times_for_auth_recheck = $n;
+               }
+       
+       /**
+        * This method is called to check whether the user is authenticated or not.
+        * @return TRUE when the user is authenticated, FALSE otherwise.
+        * @public
+        */
+       function checkAuthentication()
+               {
+               phpCAS::traceBegin();
+               
+               if ( $this->isAuthenticated() ) {
+                       phpCAS::trace('user is authenticated');
+                       $res = TRUE;
+               } else if (isset($_SESSION['phpCAS']['auth_checked'])) {
+                       // the previous request has redirected the client to the CAS server with gateway=true
+                       unset($_SESSION['phpCAS']['auth_checked']);
+                       $res = FALSE;
+               } else {
+                       //        $_SESSION['phpCAS']['auth_checked'] = true;
+                       //          $this->redirectToCas(TRUE/* gateway */);    
+                       //          // never reached
+                       //          $res = FALSE;
+                       // avoid a check against CAS on every request
+                       if (! isset($_SESSION['phpCAS']['unauth_count']) )
+                               $_SESSION['phpCAS']['unauth_count'] = -2; // uninitialized
+                       
+                       if (($_SESSION['phpCAS']['unauth_count'] != -2 && $this->_cache_times_for_auth_recheck == -1) 
+                                       || ($_SESSION['phpCAS']['unauth_count'] >= 0 && $_SESSION['phpCAS']['unauth_count'] < $this->_cache_times_for_auth_recheck))
+                       {
+                               $res = FALSE;
+                               
+                               if ($this->_cache_times_for_auth_recheck != -1)
+                               {
+                                       $_SESSION['phpCAS']['unauth_count']++;
+                                       phpCAS::trace('user is not authenticated (cached for '.$_SESSION['phpCAS']['unauth_count'].' times of '.$this->_cache_times_for_auth_recheck.')');
+                               }
+                               else
+                               {
+                                       phpCAS::trace('user is not authenticated (cached for until login pressed)');
+                               }
+                       }
+                       else
+                       {
+                               $_SESSION['phpCAS']['unauth_count'] = 0;
+                               $_SESSION['phpCAS']['auth_checked'] = true;
+                               phpCAS::trace('user is not authenticated (cache reset)');
+                               $this->redirectToCas(TRUE/* gateway */);        
+                               // never reached
+                               $res = FALSE;
+                       }
+               }
+               phpCAS::traceEnd($res);
+               return $res;
+               }
+       
+       /**
+        * This method is called to check if the user is authenticated (previously or by
+        * tickets given in the URL).
+        *
+        * @return TRUE when the user is authenticated. Also may redirect to the same URL without the ticket.
+        *
+        * @public
+        */
+       function isAuthenticated()
+               {
+               phpCAS::traceBegin();
+               $res = FALSE;
+               $validate_url = '';
+               
+               if ( $this->wasPreviouslyAuthenticated() ) {
+                       if($this->hasST() || $this->hasPT() || $this->hasSA()){
+                               // User has a additional ticket but was already authenticated
+                               phpCAS::trace('ticket was present and will be discarded, use renewAuthenticate()');
+                               header('Location: '.$this->getURL());
+                               phpCAS::log( "Prepare redirect to remove ticket: ".$this->getURL() );
+                               phpCAS::traceExit();
+                               exit();
+                       }else{
+                               // the user has already (previously during the session) been
+                               // authenticated, nothing to be done.
+                               phpCAS::trace('user was already authenticated, no need to look for tickets');
+                               $res = TRUE;
+                       }
+               }
+               else {
+                       if ( $this->hasST() ) {
+                               // if a Service Ticket was given, validate it
+                               phpCAS::trace('ST `'.$this->getST().'\' is present');
+                               $this->validateST($validate_url,$text_response,$tree_response); // if it fails, it halts
+                               phpCAS::trace('ST `'.$this->getST().'\' was validated');
+                               if ( $this->isProxy() ) {
+                                       $this->validatePGT($validate_url,$text_response,$tree_response); // idem
+                                       phpCAS::trace('PGT `'.$this->getPGT().'\' was validated');
+                                       $_SESSION['phpCAS']['pgt'] = $this->getPGT();
+                               }
+                               $_SESSION['phpCAS']['user'] = $this->getUser();
+                               $res = TRUE;
+                       }
+                       elseif ( $this->hasPT() ) {
+                               // if a Proxy Ticket was given, validate it
+                               phpCAS::trace('PT `'.$this->getPT().'\' is present');
+                               $this->validatePT($validate_url,$text_response,$tree_response); // note: if it fails, it halts
+                               phpCAS::trace('PT `'.$this->getPT().'\' was validated');
+                               if ( $this->isProxy() ) {
+                                       $this->validatePGT($validate_url,$text_response,$tree_response); // idem
+                                       phpCAS::trace('PGT `'.$this->getPGT().'\' was validated');
+                                       $_SESSION['phpCAS']['pgt'] = $this->getPGT();
+                               }
+                               $_SESSION['phpCAS']['user'] = $this->getUser();
+                               $res = TRUE;
+                       }
+                       elseif ( $this->hasSA() ) {
+                               // if we have a SAML ticket, validate it.
+                               phpCAS::trace('SA `'.$this->getSA().'\' is present');
+                               $this->validateSA($validate_url,$text_response,$tree_response); // if it fails, it halts
+                               phpCAS::trace('SA `'.$this->getSA().'\' was validated');
+                               $_SESSION['phpCAS']['user'] = $this->getUser();
+                               $_SESSION['phpCAS']['attributes'] = $this->getAttributes();
+                               $res = TRUE;
+                       }
+                       else {
+                               // no ticket given, not authenticated
+                               phpCAS::trace('no ticket found');
+                       }
+                       if ($res) {
+                               // if called with a ticket parameter, we need to redirect to the app without the ticket so that CAS-ification is transparent to the browser (for later POSTS)
+                               // most of the checks and errors should have been made now, so we're safe for redirect without masking error messages.
+                               // remove the ticket as a security precaution to prevent a ticket in the HTTP_REFERRER
+                               header('Location: '.$this->getURL());
+                               phpCAS::log( "Prepare redirect to : ".$this->getURL() );
+                               phpCAS::traceExit();
+                               exit();
+                       }
+               }
+               
+               phpCAS::traceEnd($res);
+               return $res;
+               }
+       
+       /**
+        * This method tells if the current session is authenticated.
+        * @return true if authenticated based soley on $_SESSION variable
+        * @since 0.4.22 by Brendan Arnold
+        */
+       function isSessionAuthenticated ()
+               {
+               return !empty($_SESSION['phpCAS']['user']);
+               }
+       
+       /**
+        * This method tells if the user has already been (previously) authenticated
+        * by looking into the session variables.
+        *
+        * @note This function switches to callback mode when needed.
+        *
+        * @return TRUE when the user has already been authenticated; FALSE otherwise.
+        *
+        * @private
+        */
+       function wasPreviouslyAuthenticated()
+               {
+               phpCAS::traceBegin();
+               
+               if ( $this->isCallbackMode() ) {
+                       $this->callback();
+               }
+               
+               $auth = FALSE;
+               
+               if ( $this->isProxy() ) {
+                       // CAS proxy: username and PGT must be present
+                       if ( $this->isSessionAuthenticated() && !empty($_SESSION['phpCAS']['pgt']) ) {
+                               // authentication already done
+                               $this->setUser($_SESSION['phpCAS']['user']);
+                               $this->setPGT($_SESSION['phpCAS']['pgt']);
+                               phpCAS::trace('user = `'.$_SESSION['phpCAS']['user'].'\', PGT = `'.$_SESSION['phpCAS']['pgt'].'\''); 
+                               $auth = TRUE;
+                       } elseif ( $this->isSessionAuthenticated() && empty($_SESSION['phpCAS']['pgt']) ) {
+                               // these two variables should be empty or not empty at the same time
+                               phpCAS::trace('username found (`'.$_SESSION['phpCAS']['user'].'\') but PGT is empty');
+                               // unset all tickets to enforce authentication
+                               unset($_SESSION['phpCAS']);
+                               $this->setST('');
+                               $this->setPT('');
+                       } elseif ( !$this->isSessionAuthenticated() && !empty($_SESSION['phpCAS']['pgt']) ) {
+                               // these two variables should be empty or not empty at the same time
+                               phpCAS::trace('PGT found (`'.$_SESSION['phpCAS']['pgt'].'\') but username is empty'); 
+                               // unset all tickets to enforce authentication
+                               unset($_SESSION['phpCAS']);
+                               $this->setST('');
+                               $this->setPT('');
+                       } else {
+                               phpCAS::trace('neither user not PGT found'); 
+                       }
+               } else {
+                       // `simple' CAS client (not a proxy): username must be present
+                       if ( $this->isSessionAuthenticated() ) {
+                               // authentication already done
+                               $this->setUser($_SESSION['phpCAS']['user']);
+                               if(isset($_SESSION['phpCAS']['attributes'])){
+                                       $this->setAttributes($_SESSION['phpCAS']['attributes']);
+                               }
+                               phpCAS::trace('user = `'.$_SESSION['phpCAS']['user'].'\''); 
+                               $auth = TRUE;
+                       } else {
+                               phpCAS::trace('no user found');
+                       }
+               }
+               
+               phpCAS::traceEnd($auth);
+               return $auth;
+               }
+       
+       /**
+        * This method is used to redirect the client to the CAS server.
+        * It is used by CASClient::forceAuthentication() and CASClient::checkAuthentication().
+        * @param $gateway true to check authentication, false to force it
+        * @param $renew true to force the authentication with the CAS server
+        * @public
+        */
+       function redirectToCas($gateway=false,$renew=false){
+               phpCAS::traceBegin();
+               $cas_url = $this->getServerLoginURL($gateway,$renew);
+               header('Location: '.$cas_url);
+               phpCAS::log( "Redirect to : ".$cas_url );
+               
+               $this->printHTMLHeader($this->getString(CAS_STR_AUTHENTICATION_WANTED));
+               
+               printf('<p>'.$this->getString(CAS_STR_SHOULD_HAVE_BEEN_REDIRECTED).'</p>',$cas_url);
+               $this->printHTMLFooter();
+               
+               phpCAS::traceExit();
+               exit();
+       }
+       
+       
+       /**
+        * This method is used to logout from CAS.
+        * @params $params an array that contains the optional url and service parameters that will be passed to the CAS server
+        * @public
+        */
+       function logout($params) {
+               phpCAS::traceBegin();
+               $cas_url = $this->getServerLogoutURL();
+               $paramSeparator = '?';
+               if (isset($params['url'])) {
+                       $cas_url = $cas_url . $paramSeparator . "url=" . urlencode($params['url']); 
+                       $paramSeparator = '&';
+               }
+               if (isset($params['service'])) {
+                       $cas_url = $cas_url . $paramSeparator . "service=" . urlencode($params['service']); 
+               }
+               header('Location: '.$cas_url);
+               phpCAS::log( "Prepare redirect to : ".$cas_url );
+               
+               session_unset();
+               session_destroy();
+               
+               $this->printHTMLHeader($this->getString(CAS_STR_LOGOUT));
+               printf('<p>'.$this->getString(CAS_STR_SHOULD_HAVE_BEEN_REDIRECTED).'</p>',$cas_url);
+               $this->printHTMLFooter();
+               
+               phpCAS::traceExit();
+               exit();
+       }
+       
+       /**
+        * @return true if the current request is a logout request.
+        * @private
+        */
+       function isLogoutRequest() {
+               return !empty($_POST['logoutRequest']);
+       }
+       
+       /**
+        * @return true if a logout request is allowed.
+        * @private
+        */
+       function isLogoutRequestAllowed() {
+       }
+       
+       /**
+        * This method handles logout requests.
+        * @param $check_client true to check the client bofore handling the request, 
+        * false not to perform any access control. True by default.
+        * @param $allowed_clients an array of host names allowed to send logout requests. 
+        * By default, only the CAs server (declared in the constructor) will be allowed.
+        * @public
+        */
+       function handleLogoutRequests($check_client=true, $allowed_clients=false) {
+               phpCAS::traceBegin();
+               if (!$this->isLogoutRequest()) {
+                       phpCAS::log("Not a logout request");
+                       phpCAS::traceEnd();
+                       return;
+               }
+               if(!$this->_start_session){
+                       phpCAS::log("phpCAS can't handle logout requests if it does not manage the session.");
+               }
+               phpCAS::log("Logout requested");
+               phpCAS::log("SAML REQUEST: ".$_POST['logoutRequest']);
+               if ($check_client) {
+                       if (!$allowed_clients) {
+                               $allowed_clients = array( $this->getServerHostname() ); 
+                       }
+                       $client_ip = $_SERVER['REMOTE_ADDR'];
+                       $client = gethostbyaddr($client_ip);
+                       phpCAS::log("Client: ".$client."/".$client_ip); 
+                       $allowed = false;
+                       foreach ($allowed_clients as $allowed_client) {
+                               if (($client == $allowed_client) or ($client_ip == $allowed_client)) { 
+                                       phpCAS::log("Allowed client '".$allowed_client."' matches, logout request is allowed");
+                                       $allowed = true;
+                                       break;
+                               } else {
+                                       phpCAS::log("Allowed client '".$allowed_client."' does not match");
+                               }
+                       }
+                       if (!$allowed) {
+                               phpCAS::error("Unauthorized logout request from client '".$client."'");
+                               printf("Unauthorized!");
+                               phpCAS::traceExit();
+                               exit();
+                       }
+               } else {
+                       phpCAS::log("No access control set");
+               }
+               // Extract the ticket from the SAML Request
+               preg_match("|<samlp:SessionIndex>(.*)</samlp:SessionIndex>|", $_POST['logoutRequest'], $tick, PREG_OFFSET_CAPTURE, 3);
+               $wrappedSamlSessionIndex = preg_replace('|<samlp:SessionIndex>|','',$tick[0][0]);
+               $ticket2logout = preg_replace('|</samlp:SessionIndex>|','',$wrappedSamlSessionIndex);
+               phpCAS::log("Ticket to logout: ".$ticket2logout);
+               $session_id = preg_replace('/[^\w]/','',$ticket2logout);
+               phpCAS::log("Session id: ".$session_id);
+               
+               // destroy a possible application session created before phpcas
+               if(session_id()  !== ""){
+                       session_unset();
+                       session_destroy();
+               }
+               // fix session ID
+               session_id($session_id);
+               $_COOKIE[session_name()]=$session_id;
+               $_GET[session_name()]=$session_id;
+               
+               // Overwrite session
+               session_start();        
+               session_unset();
+               session_destroy();
+               printf("Disconnected!");
+               phpCAS::traceExit();
+               exit();
+       }
+       
+       /** @} */
+       
+       // XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+       // XX                                                                    XX
+       // XX                  BASIC CLIENT FEATURES (CAS 1.0)                   XX
+       // XX                                                                    XX
+       // XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+       
+       // ########################################################################
+       //  ST
+       // ########################################################################
+       /**
+        * @addtogroup internalBasic
+        * @{
+        */  
+       
+       /**
+        * the Service Ticket provided in the URL of the request if present
+        * (empty otherwise). Written by CASClient::CASClient(), read by 
+        * CASClient::getST() and CASClient::hasPGT().
+        *
+        * @hideinitializer
+        * @private
+        */
+       var $_st = '';
+       
+       /**
+        * This method returns the Service Ticket provided in the URL of the request.
+        * @return The service ticket.
+        * @private
+        */
+       function getST()
+               { return $this->_st; }
+       
+       /**
+        * This method stores the Service Ticket.
+        * @param $st The Service Ticket.
+        * @private
+        */
+       function setST($st)
+               { $this->_st = $st; }
+       
+       /**
+        * This method tells if a Service Ticket was stored.
+        * @return TRUE if a Service Ticket has been stored.
+        * @private
+        */
+       function hasST()
+               { return !empty($this->_st); }
+       
+       /** @} */
+       
+       // ########################################################################
+       //  ST VALIDATION
+       // ########################################################################
+       /**
+        * @addtogroup internalBasic
+        * @{
+        */  
+       
+       /**
+        * the certificate of the CAS server.
+        *
+        * @hideinitializer
+        * @private
+        */
+       var $_cas_server_cert = '';
+       
+       /**
+        * the certificate of the CAS server CA.
+        *
+        * @hideinitializer
+        * @private
+        */
+       var $_cas_server_ca_cert = '';
+       
+       /**
+        * Set to true not to validate the CAS server.
+        *
+        * @hideinitializer
+        * @private
+        */
+       var $_no_cas_server_validation = false;
+       
+       /**
+        * Set the certificate of the CAS server.
+        *
+        * @param $cert the PEM certificate
+        */
+       function setCasServerCert($cert)
+               {
+               $this->_cas_server_cert = $cert;
+               }
+       
+       /**
+        * Set the CA certificate of the CAS server.
+        *
+        * @param $cert the PEM certificate of the CA that emited the cert of the server
+        */
+       function setCasServerCACert($cert)
+               {
+               $this->_cas_server_ca_cert = $cert;
+               }
+       
+       /**
+        * Set no SSL validation for the CAS server.
+        */
+       function setNoCasServerValidation()
+               {
+               $this->_no_cas_server_validation = true;
+               }
+       
+       /**
+        * This method is used to validate a ST; halt on failure, and sets $validate_url,
+        * $text_reponse and $tree_response on success. These parameters are used later
+        * by CASClient::validatePGT() for CAS proxies.
+        * Used for all CAS 1.0 validations
+        * @param $validate_url the URL of the request to the CAS server.
+        * @param $text_response the response of the CAS server, as is (XML text).
+        * @param $tree_response the response of the CAS server, as a DOM XML tree.
+        *
+        * @return bool TRUE when successfull, halt otherwise by calling CASClient::authError().
+        *
+        * @private
+        */
+       function validateST($validate_url,&$text_response,&$tree_response)
+               {
+               phpCAS::traceBegin();
+               // build the URL to validate the ticket
+               $validate_url = $this->getServerServiceValidateURL().'&ticket='.$this->getST();
+               if ( $this->isProxy() ) {
+                       // pass the callback url for CAS proxies
+                       $validate_url .= '&pgtUrl='.urlencode($this->getCallbackURL());
+               }
+               
+               // open and read the URL
+               if ( !$this->readURL($validate_url,''/*cookies*/,$headers,$text_response,$err_msg) ) {
+                       phpCAS::trace('could not open URL \''.$validate_url.'\' to validate ('.$err_msg.')');
+                       $this->authError('ST not validated',
+                               $validate_url,
+                               TRUE/*$no_response*/);
+               }
+               
+               // analyze the result depending on the version
+               switch ($this->getServerVersion()) {
+                       case CAS_VERSION_1_0:
+                               if (preg_match('/^no\n/',$text_response)) {
+                                       phpCAS::trace('ST has not been validated');
+                                       $this->authError('ST not validated',
+                                               $validate_url,
+                                               FALSE/*$no_response*/,
+                                               FALSE/*$bad_response*/,
+                                               $text_response);
+                               }
+                               if (!preg_match('/^yes\n/',$text_response)) {
+                                       phpCAS::trace('ill-formed response');
+                                       $this->authError('ST not validated',
+                                               $validate_url,
+                                               FALSE/*$no_response*/,
+                                               TRUE/*$bad_response*/,
+                                               $text_response);
+                               }
+                               // ST has been validated, extract the user name
+                               $arr = preg_split('/\n/',$text_response);
+                               $this->setUser(trim($arr[1]));
+                               break;
+                       case CAS_VERSION_2_0:
+                               // read the response of the CAS server into a DOM object
+                               if ( !($dom = domxml_open_mem($text_response))) {
+                                       phpCAS::trace('domxml_open_mem() failed');
+                                       $this->authError('ST not validated',
+                                               $validate_url,
+                                               FALSE/*$no_response*/,
+                                               TRUE/*$bad_response*/,
+                                               $text_response);
+                               }
+                               // read the root node of the XML tree
+                               if ( !($tree_response = $dom->document_element()) ) {
+                                       phpCAS::trace('document_element() failed');
+                                       $this->authError('ST not validated',
+                                               $validate_url,
+                                               FALSE/*$no_response*/,
+                                               TRUE/*$bad_response*/,
+                                               $text_response);
+                               }
+                               // insure that tag name is 'serviceResponse'
+                               if ( $tree_response->node_name() != 'serviceResponse' ) {
+                                       phpCAS::trace('bad XML root node (should be `serviceResponse\' instead of `'.$tree_response->node_name().'\'');
+                                       $this->authError('ST not validated',
+                                               $validate_url,
+                                               FALSE/*$no_response*/,
+                                               TRUE/*$bad_response*/,
+                                               $text_response);
+                               }
+                               if ( sizeof($success_elements = $tree_response->get_elements_by_tagname("authenticationSuccess")) != 0) {
+                                       // authentication succeded, extract the user name
+                                       if ( sizeof($user_elements = $success_elements[0]->get_elements_by_tagname("user")) == 0) {
+                                               phpCAS::trace('<authenticationSuccess> found, but no <user>');
+                                               $this->authError('ST not validated',
+                                                       $validate_url,
+                                                       FALSE/*$no_response*/,
+                                                       TRUE/*$bad_response*/,
+                                                       $text_response);
+                                       }
+                                       $user = trim($user_elements[0]->get_content());
+                                       phpCAS::trace('user = `'.$user);
+                                       $this->setUser($user);
+                                       
+                               } else if ( sizeof($failure_elements = $tree_response->get_elements_by_tagname("authenticationFailure")) != 0) {
+                                       phpCAS::trace('<authenticationFailure> found');
+                                       // authentication failed, extract the error code and message
+                                       $this->authError('ST not validated',
+                                               $validate_url,
+                                               FALSE/*$no_response*/,
+                                               FALSE/*$bad_response*/,
+                                               $text_response,
+                                               $failure_elements[0]->get_attribute('code')/*$err_code*/,
+                                               trim($failure_elements[0]->get_content())/*$err_msg*/);
+                               } else {
+                                       phpCAS::trace('neither <authenticationSuccess> nor <authenticationFailure> found');
+                                       $this->authError('ST not validated',
+                                               $validate_url,
+                                               FALSE/*$no_response*/,
+                                               TRUE/*$bad_response*/,
+                                               $text_response);
+                               }
+                               break;
+               }
+               $this->renameSession($this->getST());
+               // at this step, ST has been validated and $this->_user has been set,
+               phpCAS::traceEnd(TRUE);
+               return TRUE;
+               }
+       
+       // ########################################################################
+       //  SAML VALIDATION
+       // ########################################################################
+       /**
+        * @addtogroup internalBasic
+        * @{
+        */
+       
+       /**
+        * This method is used to validate a SAML TICKET; halt on failure, and sets $validate_url,
+        * $text_reponse and $tree_response on success. These parameters are used later
+        * by CASClient::validatePGT() for CAS proxies.
+        *
+        * @param $validate_url the URL of the request to the CAS server.
+        * @param $text_response the response of the CAS server, as is (XML text).
+        * @param $tree_response the response of the CAS server, as a DOM XML tree.
+        *
+        * @return bool TRUE when successfull, halt otherwise by calling CASClient::authError().
+        *
+        * @private
+        */
+       function validateSA($validate_url,&$text_response,&$tree_response)
+               {
+               phpCAS::traceBegin();
+               
+               // build the URL to validate the ticket
+               $validate_url = $this->getServerSamlValidateURL();
+               
+               // open and read the URL
+               if ( !$this->readURL($validate_url,''/*cookies*/,$headers,$text_response,$err_msg) ) {
+                       phpCAS::trace('could not open URL \''.$validate_url.'\' to validate ('.$err_msg.')');
+                       $this->authError('SA not validated', $validate_url, TRUE/*$no_response*/);
+               }
+               
+               phpCAS::trace('server version: '.$this->getServerVersion());
+               
+               // analyze the result depending on the version
+               switch ($this->getServerVersion()) {
+                       case SAML_VERSION_1_1:
+                               
+                               // read the response of the CAS server into a DOM object
+                               if ( !($dom = domxml_open_mem($text_response))) {
+                                       phpCAS::trace('domxml_open_mem() failed');
+                                       $this->authError('SA not validated',
+                                               $validate_url,
+                                               FALSE/*$no_response*/,
+                                               TRUE/*$bad_response*/,
+                                               $text_response);
+                               }
+                               // read the root node of the XML tree
+                               if ( !($tree_response = $dom->document_element()) ) {
+                                       phpCAS::trace('document_element() failed');
+                                       $this->authError('SA not validated',
+                                               $validate_url,
+                                               FALSE/*$no_response*/,
+                                               TRUE/*$bad_response*/,
+                                               $text_response);
+                               }
+                               // insure that tag name is 'Envelope'
+                               if ( $tree_response->node_name() != 'Envelope' ) {
+                                       phpCAS::trace('bad XML root node (should be `Envelope\' instead of `'.$tree_response->node_name().'\'');
+                                       $this->authError('SA not validated',
+                                               $validate_url,
+                                               FALSE/*$no_response*/,
+                                               TRUE/*$bad_response*/,
+                                               $text_response);
+                               }
+                               // check for the NameIdentifier tag in the SAML response
+                               if ( sizeof($success_elements = $tree_response->get_elements_by_tagname("NameIdentifier")) != 0) {
+                                       phpCAS::trace('NameIdentifier found');
+                                       $user = trim($success_elements[0]->get_content());
+                                       phpCAS::trace('user = `'.$user.'`');
+                                       $this->setUser($user);
+                                       $this->setSessionAttributes($text_response);
+                               } else {
+                                       phpCAS::trace('no <NameIdentifier> tag found in SAML payload');
+                                       $this->authError('SA not validated',
+                                               $validate_url,
+                                               FALSE/*$no_response*/,
+                                               TRUE/*$bad_response*/,
+                                               $text_response);
+                               }
+                               break;
+               }
+               $this->renameSession($this->getSA());
+               // at this step, ST has been validated and $this->_user has been set,
+               phpCAS::traceEnd(TRUE);
+               return TRUE;
+               }
+       
+       /**
+        * This method will parse the DOM and pull out the attributes from the SAML
+        * payload and put them into an array, then put the array into the session.
+        *
+        * @param $text_response the SAML payload.
+        * @return bool TRUE when successfull and FALSE if no attributes a found
+        *
+        * @private
+        */
+       function setSessionAttributes($text_response)
+               {
+               phpCAS::traceBegin();
+               
+               $result = FALSE;
+               
+               if (isset($_SESSION[SAML_ATTRIBUTES])) {
+                       phpCAS::trace("session attrs already set.");  //testbml - do we care?
+               }
+               
+               $attr_array = array();
+               
+               if (($dom = domxml_open_mem($text_response))) {
+                       $xPath = $dom->xpath_new_context();
+                       $xPath->xpath_register_ns('samlp', 'urn:oasis:names:tc:SAML:1.0:protocol');
+                       $xPath->xpath_register_ns('saml', 'urn:oasis:names:tc:SAML:1.0:assertion');
+                       $nodelist = $xPath->xpath_eval("//saml:Attribute");
+                       if($nodelist){
+                               $attrs = $nodelist->nodeset;
+                               foreach($attrs as $attr){
+                                       $xres = $xPath->xpath_eval("saml:AttributeValue", $attr);
+                                       $name = $attr->get_attribute("AttributeName");
+                                       $value_array = array();
+                                       foreach($xres->nodeset as $node){
+                                               $value_array[] = $node->get_content();
+                                       }
+                                       $attr_array[$name] = $value_array;
+                               }
+                               $_SESSION[SAML_ATTRIBUTES] = $attr_array;
+                               // UGent addition...
+                               foreach($attr_array as $attr_key => $attr_value) {
+                                       if(count($attr_value) > 1) {
+                                               $this->_attributes[$attr_key] = $attr_value;
+                                               phpCAS::trace("* " . $attr_key . "=" . $attr_value);
+                                       }
+                                       else {
+                                               $this->_attributes[$attr_key] = $attr_value[0];
+                                               phpCAS::trace("* " . $attr_key . "=" . $attr_value[0]);
+                                       }
+                               }
+                               $result = TRUE;
+                       }else{
+                               phpCAS::trace("SAML Attributes are empty");
+                               $result = FALSE;
+                       }
+               }
+               phpCAS::traceEnd($result);
+               return $result;
+               }
+       
+       /** @} */
+       
+       // XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+       // XX                                                                    XX
+       // XX                     PROXY FEATURES (CAS 2.0)                       XX
+       // XX                                                                    XX
+       // XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+       
+       // ########################################################################
+       //  PROXYING
+       // ########################################################################
+       /**
+        * @addtogroup internalProxy
+        * @{
+        */
+       
+       /**
+        * A boolean telling if the client is a CAS proxy or not. Written by CASClient::CASClient(), 
+        * read by CASClient::isProxy().
+        *
+        * @private
+        */
+       var $_proxy;
+       
+       /**
+        * Tells if a CAS client is a CAS proxy or not
+        *
+        * @return TRUE when the CAS client is a CAs proxy, FALSE otherwise
+        *
+        * @private
+        */
+       function isProxy()
+               {
+               return $this->_proxy;
+               }
+       
+       /** @} */
+       // ########################################################################
+       //  PGT
+       // ########################################################################
+       /**
+        * @addtogroup internalProxy
+        * @{
+        */  
+       
+       /**
+        * the Proxy Grnting Ticket given by the CAS server (empty otherwise). 
+        * Written by CASClient::setPGT(), read by CASClient::getPGT() and CASClient::hasPGT().
+        *
+        * @hideinitializer
+        * @private
+        */
+       var $_pgt = '';
+       
+       /**
+        * This method returns the Proxy Granting Ticket given by the CAS server.
+        * @return The Proxy Granting Ticket.
+        * @private
+        */
+       function getPGT()
+               { return $this->_pgt; }
+       
+       /**
+        * This method stores the Proxy Granting Ticket.
+        * @param $pgt The Proxy Granting Ticket.
+        * @private
+        */
+       function setPGT($pgt)
+               { $this->_pgt = $pgt; }
+       
+       /**
+        * This method tells if a Proxy Granting Ticket was stored.
+        * @return TRUE if a Proxy Granting Ticket has been stored.
+        * @private
+        */
+       function hasPGT()
+               { return !empty($this->_pgt); }
+       
+       /** @} */
+       
+       // ########################################################################
+       //  CALLBACK MODE
+       // ########################################################################
+       /**
+        * @addtogroup internalCallback
+        * @{
+        */  
+       /**
+        * each PHP script using phpCAS in proxy mode is its own callback to get the
+        * PGT back from the CAS server. callback_mode is detected by the constructor
+        * thanks to the GET parameters.
+        */
+       
+       /**
+        * a boolean to know if the CAS client is running in callback mode. Written by
+        * CASClient::setCallBackMode(), read by CASClient::isCallbackMode().
+        *
+        * @hideinitializer
+        * @private
+        */
+       var $_callback_mode = FALSE;
+       
+       /**
+        * This method sets/unsets callback mode.
+        *
+        * @param $callback_mode TRUE to set callback mode, FALSE otherwise.
+        *
+        * @private
+        */
+       function setCallbackMode($callback_mode)
+               {
+               $this->_callback_mode = $callback_mode;
+               }
+       
+       /**
+        * This method returns TRUE when the CAs client is running i callback mode, 
+        * FALSE otherwise.
+        *
+        * @return A boolean.
+        *
+        * @private
+        */
+       function isCallbackMode()
+               {
+               return $this->_callback_mode;
+               }
+       
+       /**
+        * the URL that should be used for the PGT callback (in fact the URL of the 
+        * current request without any CGI parameter). Written and read by 
+        * CASClient::getCallbackURL().
+        *
+        * @hideinitializer
+        * @private
+        */
+       var $_callback_url = '';
+       
+       /**
+        * This method returns the URL that should be used for the PGT callback (in
+        * fact the URL of the current request without any CGI parameter, except if
+        * phpCAS::setFixedCallbackURL() was used).
+        *
+        * @return The callback URL
+        *
+        * @private
+        */
+       function getCallbackURL()
+               {
+               // the URL is built when needed only
+               if ( empty($this->_callback_url) ) {
+                       $final_uri = '';
+                       // remove the ticket if present in the URL
+                       $final_uri = 'https://';
+                       /* replaced by Julien Marchal - v0.4.6
+                        * $this->uri .= $_SERVER['SERVER_NAME'];
+                        */
+                       if(empty($_SERVER['HTTP_X_FORWARDED_SERVER'])){
+                               /* replaced by teedog - v0.4.12
+                                * $final_uri .= $_SERVER['SERVER_NAME'];
+                                */
+                               if (empty($_SERVER['SERVER_NAME'])) {
+                                       $final_uri .= $_SERVER['HTTP_HOST'];
+                               } else {
+                                       $final_uri .= $_SERVER['SERVER_NAME'];
+                               }
+                       } else {
+                               $final_uri .= $_SERVER['HTTP_X_FORWARDED_SERVER'];
+                       }
+                       if ( ($this->isHttps() && $_SERVER['SERVER_PORT']!=443)
+                                       || (!$this->isHttps() && $_SERVER['SERVER_PORT']!=80) ) {
+                               $final_uri .= ':';
+                               $final_uri .= $_SERVER['SERVER_PORT'];
+                       }
+                       $request_uri = $_SERVER['REQUEST_URI'];
+                       $request_uri = preg_replace('/\?.*$/','',$request_uri);
+                       $final_uri .= $request_uri;
+                       $this->setCallbackURL($final_uri);
+               }
+               return $this->_callback_url;
+               }
+       
+       /**
+        * This method sets the callback url.
+        *
+        * @param $callback_url url to set callback 
+        *
+        * @private
+        */
+       function setCallbackURL($url)
+               {
+               return $this->_callback_url = $url;
+               }
+       
+       /**
+        * This method is called by CASClient::CASClient() when running in callback
+        * mode. It stores the PGT and its PGT Iou, prints its output and halts.
+        *
+        * @private
+        */
+       function callback()
+               {
+               phpCAS::traceBegin();
+               if (preg_match('/PGTIOU-[\.\-\w]/', $_GET['pgtIou'])){
+                       if(preg_match('/[PT]GT-[\.\-\w]/', $_GET['pgtId'])){
+                               $this->printHTMLHeader('phpCAS callback');
+                               $pgt_iou = $_GET['pgtIou'];
+                               $pgt = $_GET['pgtId'];
+                               phpCAS::trace('Storing PGT `'.$pgt.'\' (id=`'.$pgt_iou.'\')');
+                               echo '<p>Storing PGT `'.$pgt.'\' (id=`'.$pgt_iou.'\').</p>';
+                               $this->storePGT($pgt,$pgt_iou);
+                               $this->printHTMLFooter();
+                       }else{
+                               phpCAS::error('PGT format invalid' . $_GET['pgtId']);
+                       }
+               }else{
+                       phpCAS::error('PGTiou format invalid' . $_GET['pgtIou']);
+               }
+               phpCAS::traceExit();
+               exit();
+               }
+       
+       /** @} */
+       
+       // ########################################################################
+       //  PGT STORAGE
+       // ########################################################################
+       /**
+        * @addtogroup internalPGTStorage
+        * @{
+        */  
+       
+       /**
+        * an instance of a class inheriting of PGTStorage, used to deal with PGT
+        * storage. Created by CASClient::setPGTStorageFile() or CASClient::setPGTStorageDB(), used 
+        * by CASClient::setPGTStorageFile(), CASClient::setPGTStorageDB() and CASClient::initPGTStorage().
+        *
+        * @hideinitializer
+        * @private
+        */
+       var $_pgt_storage = null;
+       
+       /**
+        * This method is used to initialize the storage of PGT's.
+        * Halts on error.
+        *
+        * @private
+        */
+       function initPGTStorage()
+               {
+               // if no SetPGTStorageXxx() has been used, default to file
+               if ( !is_object($this->_pgt_storage) ) {
+                       $this->setPGTStorageFile();
+               }
+               
+               // initializes the storage
+               $this->_pgt_storage->init();
+               }
+       
+       /**
+        * This method stores a PGT. Halts on error.
+        *
+        * @param $pgt the PGT to store
+        * @param $pgt_iou its corresponding Iou
+        *
+        * @private
+        */
+       function storePGT($pgt,$pgt_iou)
+               {
+               // ensure that storage is initialized
+               $this->initPGTStorage();
+               // writes the PGT
+               $this->_pgt_storage->write($pgt,$pgt_iou);
+               }
+       
+       /**
+        * This method reads a PGT from its Iou and deletes the corresponding storage entry.
+        *
+        * @param $pgt_iou the PGT Iou
+        *
+        * @return The PGT corresponding to the Iou, FALSE when not found.
+        *
+        * @private
+        */
+       function loadPGT($pgt_iou)
+               {
+               // ensure that storage is initialized
+               $this->initPGTStorage();
+               // read the PGT
+               return $this->_pgt_storage->read($pgt_iou);
+               }
+       
+       /**
+        * This method is used to tell phpCAS to store the response of the
+        * CAS server to PGT requests onto the filesystem. 
+        *
+        * @param $format the format used to store the PGT's (`plain' and `xml' allowed)
+        * @param $path the path where the PGT's should be stored
+        *
+        * @public
+        */
+       function setPGTStorageFile($format='',
+               $path='')
+               {
+               // check that the storage has not already been set
+               if ( is_object($this->_pgt_storage) ) {
+                       phpCAS::error('PGT storage already defined');
+               }
+               
+               // create the storage object
+               $this->_pgt_storage = new PGTStorageFile($this,$format,$path);
+               }
+       
+       // ########################################################################
+       //  PGT VALIDATION
+       // ########################################################################
+       /**
+        * This method is used to validate a PGT; halt on failure.
+        * 
+        * @param $validate_url the URL of the request to the CAS server.
+        * @param $text_response the response of the CAS server, as is (XML text); result
+        * of CASClient::validateST() or CASClient::validatePT().
+        * @param $tree_response the response of the CAS server, as a DOM XML tree; result
+        * of CASClient::validateST() or CASClient::validatePT().
+        *
+        * @return bool TRUE when successfull, halt otherwise by calling CASClient::authError().
+        *
+        * @private
+        */
+       function validatePGT(&$validate_url,$text_response,$tree_response)
+               {
+               // here cannot use phpCAS::traceBegin(); alongside domxml-php4-to-php5.php
+               phpCAS::log('start validatePGT()');
+               if ( sizeof($arr = $tree_response->get_elements_by_tagname("proxyGrantingTicket")) == 0) {
+                       phpCAS::trace('<proxyGrantingTicket> not found');
+                       // authentication succeded, but no PGT Iou was transmitted
+                       $this->authError('Ticket validated but no PGT Iou transmitted',
+                               $validate_url,
+                               FALSE/*$no_response*/,
+                               FALSE/*$bad_response*/,
+                               $text_response);
+               } else {
+                       // PGT Iou transmitted, extract it
+                       $pgt_iou = trim($arr[0]->get_content());
+                       if(preg_match('/PGTIOU-[\.\-\w]/',$pgt_iou)){ 
+                               $pgt = $this->loadPGT($pgt_iou);
+                               if ( $pgt == FALSE ) {
+                                       phpCAS::trace('could not load PGT');
+                                       $this->authError('PGT Iou was transmitted but PGT could not be retrieved',
+                                               $validate_url,
+                                               FALSE/*$no_response*/,
+                                               FALSE/*$bad_response*/,
+                                               $text_response);
+                               }
+                               $this->setPGT($pgt);
+                       }else{
+                               phpCAS::trace('PGTiou format error');
+                               $this->authError('PGT Iou was transmitted but has wrong fromat',
+                                       $validate_url,
+                                       FALSE/*$no_response*/,
+                                       FALSE/*$bad_response*/,
+                                       $text_response);
+                       }
+                       
+               }
+               // here, cannot use     phpCAS::traceEnd(TRUE); alongside domxml-php4-to-php5.php
+               phpCAS::log('end validatePGT()');
+               return TRUE;
+               }
+       
+       // ########################################################################
+       //  PGT VALIDATION
+       // ########################################################################
+       
+       /**
+        * This method is used to retrieve PT's from the CAS server thanks to a PGT.
+        * 
+        * @param $target_service the service to ask for with the PT.
+        * @param $err_code an error code (PHPCAS_SERVICE_OK on success).
+        * @param $err_msg an error message (empty on success).
+        *
+        * @return a Proxy Ticket, or FALSE on error.
+        *
+        * @private
+        */
+       function retrievePT($target_service,&$err_code,&$err_msg)
+               {
+               phpCAS::traceBegin();
+               
+               // by default, $err_msg is set empty and $pt to TRUE. On error, $pt is
+               // set to false and $err_msg to an error message. At the end, if $pt is FALSE 
+               // and $error_msg is still empty, it is set to 'invalid response' (the most
+               // commonly encountered error).
+               $err_msg = '';
+               
+               // build the URL to retrieve the PT
+               //      $cas_url = $this->getServerProxyURL().'?targetService='.preg_replace('/&/','%26',$target_service).'&pgt='.$this->getPGT();
+               $cas_url = $this->getServerProxyURL().'?targetService='.urlencode($target_service).'&pgt='.$this->getPGT();
+               
+               // open and read the URL
+               if ( !$this->readURL($cas_url,''/*cookies*/,$headers,$cas_response,$err_msg) ) {
+                       phpCAS::trace('could not open URL \''.$cas_url.'\' to validate ('.$err_msg.')');
+                       $err_code = PHPCAS_SERVICE_PT_NO_SERVER_RESPONSE;
+                       $err_msg = 'could not retrieve PT (no response from the CAS server)';
+                       phpCAS::traceEnd(FALSE);
+                       return FALSE;
+               }
+               
+               $bad_response = FALSE;
+               
+               if ( !$bad_response ) {
+                       // read the response of the CAS server into a DOM object
+                       if ( !($dom = @domxml_open_mem($cas_response))) {
+                               phpCAS::trace('domxml_open_mem() failed');
+                               // read failed
+                               $bad_response = TRUE;
+                       } 
+               }
+               
+               if ( !$bad_response ) {
+                       // read the root node of the XML tree
+                       if ( !($root = $dom->document_element()) ) {
+                               phpCAS::trace('document_element() failed');
+                               // read failed
+                               $bad_response = TRUE;
+                       } 
+               }
+               
+               if ( !$bad_response ) {
+                       // insure that tag name is 'serviceResponse'
+                       if ( $root->node_name() != 'serviceResponse' ) {
+                               phpCAS::trace('node_name() failed');
+                               // bad root node
+                               $bad_response = TRUE;
+                       } 
+               }
+               
+               if ( !$bad_response ) {
+                       // look for a proxySuccess tag
+                       if ( sizeof($arr = $root->get_elements_by_tagname("proxySuccess")) != 0) {
+                               // authentication succeded, look for a proxyTicket tag
+                               if ( sizeof($arr = $root->get_elements_by_tagname("proxyTicket")) != 0) {
+                                       $err_code = PHPCAS_SERVICE_OK;
+                                       $err_msg = '';
+                                       phpCAS::trace('original PT: '.trim($arr[0]->get_content()));
+                                       $pt = trim($arr[0]->get_content());
+                                       phpCAS::traceEnd($pt);
+                                       return $pt;
+                               } else {
+                                       phpCAS::trace('<proxySuccess> was found, but not <proxyTicket>');
+                               }
+                       } 
+                       // look for a proxyFailure tag
+                       else if ( sizeof($arr = $root->get_elements_by_tagname("proxyFailure")) != 0) {
+                               // authentication failed, extract the error
+                               $err_code = PHPCAS_SERVICE_PT_FAILURE;
+                               $err_msg = 'PT retrieving failed (code=`'
+                                       .$arr[0]->get_attribute('code')
+                                       .'\', message=`'
+                                       .trim($arr[0]->get_content())
+                                       .'\')';
+                               phpCAS::traceEnd(FALSE);
+                               return FALSE;
+                       } else {
+                               phpCAS::trace('neither <proxySuccess> nor <proxyFailure> found');
+                       }
+               }
+               
+               // at this step, we are sure that the response of the CAS server was ill-formed
+               $err_code = PHPCAS_SERVICE_PT_BAD_SERVER_RESPONSE;
+               $err_msg = 'Invalid response from the CAS server (response=`'.$cas_response.'\')';
+               
+               phpCAS::traceEnd(FALSE);
+               return FALSE;
+               }
+       
+       // ########################################################################
+       // ACCESS TO EXTERNAL SERVICES
+       // ########################################################################
+       
+       /**
+        * This method is used to acces a remote URL.
+        *
+        * @param $url the URL to access.
+        * @param $cookies an array containing cookies strings such as 'name=val'
+        * @param $headers an array containing the HTTP header lines of the response
+        * (an empty array on failure).
+        * @param $body the body of the response, as a string (empty on failure).
+        * @param $err_msg an error message, filled on failure.
+        *
+        * @return TRUE on success, FALSE otherwise (in this later case, $err_msg
+        * contains an error message).
+        *
+        * @private
+        */
+       function readURL($url,$cookies,&$headers,&$body,&$err_msg)
+               {
+               phpCAS::traceBegin();
+               $headers = '';
+               $body = '';
+               $err_msg = '';
+               
+               $res = TRUE;
+               
+               // initialize the CURL session
+               $ch = curl_init($url);
+               
+               if (version_compare(PHP_VERSION,'5.1.3','>=')) {
+                       //only avaible in php5
+                       curl_setopt_array($ch, $this->_curl_options);
+               } else {
+                       foreach ($this->_curl_options as $key => $value) {
+                               curl_setopt($ch, $key, $value);
+                       }
+               }
+               
+               if ($this->_cas_server_cert == '' && $this->_cas_server_ca_cert == '' && !$this->_no_cas_server_validation) {
+                       phpCAS::error('one of the methods phpCAS::setCasServerCert(), phpCAS::setCasServerCACert() or phpCAS::setNoCasServerValidation() must be called.');
+               }
+               if ($this->_cas_server_cert != '' && $this->_cas_server_ca_cert != '') {
+                       // This branch added by IDMS. Seems phpCAS implementor got a bit confused about the curl options CURLOPT_SSLCERT and CURLOPT_CAINFO
+                       curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1);
+                       curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 1);
+                       curl_setopt($ch, CURLOPT_SSLCERT, $this->_cas_server_cert);
+                       curl_setopt($ch, CURLOPT_CAINFO, $this->_cas_server_ca_cert);
+                       curl_setopt($ch, CURLOPT_VERBOSE, '1');
+                       phpCAS::trace('CURL: Set all required opts for mutual authentication ------');
+               } else if ($this->_cas_server_cert != '' ) {
+                       curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1);
+                       curl_setopt($ch, CURLOPT_SSLCERT, $this->_cas_server_cert);
+               } else if ($this->_cas_server_ca_cert != '') {
+                       curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1);
+                       curl_setopt($ch, CURLOPT_CAINFO, $this->_cas_server_ca_cert);
+               } else {
+                       curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 1);
+                       curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
+               }
+               
+               // return the CURL output into a variable
+               curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
+               // get the HTTP header with a callback
+               $this->_curl_headers = array(); // empty the headers array
+               curl_setopt($ch, CURLOPT_HEADERFUNCTION, array($this, '_curl_read_headers'));
+               // add cookies headers
+               if ( is_array($cookies) ) {
+                       curl_setopt($ch,CURLOPT_COOKIE,implode(';',$cookies));
+               }
+               // add extra stuff if SAML
+               if ($this->hasSA()) {
+                       $more_headers = array ("soapaction: http://www.oasis-open.org/committees/security",
+                               "cache-control: no-cache",
+                               "pragma: no-cache",
+                               "accept: text/xml",
+                               "connection: keep-alive",
+                       "content-type: text/xml");
+                       
+                       curl_setopt($ch, CURLOPT_HTTPHEADER, $more_headers);
+                       curl_setopt($ch, CURLOPT_POST, 1);
+                       $data = $this->buildSAMLPayload();
+                       //phpCAS::trace('SAML Payload: '.print_r($data, TRUE));
+                       curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
+               }
+               // perform the query
+               $buf = curl_exec ($ch);
+               //phpCAS::trace('CURL: Call completed. Response body is: \''.$buf.'\'');
+               if ( $buf === FALSE ) {
+                       phpCAS::trace('curl_exec() failed');
+                       $err_msg = 'CURL error #'.curl_errno($ch).': '.curl_error($ch);
+                       //phpCAS::trace('curl error: '.$err_msg);
+                       // close the CURL session
+                       curl_close ($ch);
+                       $res = FALSE;
+               } else {
+                       // close the CURL session
+                       curl_close ($ch);
+                       
+                       $headers = $this->_curl_headers;
+                       $body = $buf;
+               }
+               
+               phpCAS::traceEnd($res);
+               return $res;
+               }
+       
+       /**
+        * This method is used to build the SAML POST body sent to /samlValidate URL.
+        *
+        * @return the SOAP-encased SAMLP artifact (the ticket).
+        *
+        * @private
+        */
+       function buildSAMLPayload()
+               {
+               phpCAS::traceBegin();
+               
+               //get the ticket
+               $sa = $this->getSA();
+               //phpCAS::trace("SA: ".$sa);
+               
+               $body=SAML_SOAP_ENV.SAML_SOAP_BODY.SAMLP_REQUEST.SAML_ASSERTION_ARTIFACT.$sa.SAML_ASSERTION_ARTIFACT_CLOSE.SAMLP_REQUEST_CLOSE.SAML_SOAP_BODY_CLOSE.SAML_SOAP_ENV_CLOSE;
+               
+               phpCAS::traceEnd($body);
+               return ($body);
+               }
+       
+       /**
+        * This method is the callback used by readURL method to request HTTP headers.
+        */
+       var $_curl_headers = array();
+       function _curl_read_headers($ch, $header)
+               {
+               $this->_curl_headers[] = $header;
+               return strlen($header);
+               }
+       
+       /**
+        * This method is used to access an HTTP[S] service.
+        * 
+        * @param $url the service to access.
+        * @param $err_code an error code Possible values are PHPCAS_SERVICE_OK (on
+        * success), PHPCAS_SERVICE_PT_NO_SERVER_RESPONSE, PHPCAS_SERVICE_PT_BAD_SERVER_RESPONSE,
+        * PHPCAS_SERVICE_PT_FAILURE, PHPCAS_SERVICE_NOT AVAILABLE.
+        * @param $output the output of the service (also used to give an error
+        * message on failure).
+        *
+        * @return TRUE on success, FALSE otherwise (in this later case, $err_code
+        * gives the reason why it failed and $output contains an error message).
+        *
+        * @public
+        */
+       function serviceWeb($url,&$err_code,&$output)
+               {
+               phpCAS::traceBegin();
+               // at first retrieve a PT
+               $pt = $this->retrievePT($url,$err_code,$output);
+               
+               $res = TRUE;
+               
+               // test if PT was retrieved correctly
+               if ( !$pt ) {
+                       // note: $err_code and $err_msg are filled by CASClient::retrievePT()
+                       phpCAS::trace('PT was not retrieved correctly');
+                       $res = FALSE;
+               } else {
+                       // add cookies if necessary
+                       $cookies = $this->getCookies($url);
+                       
+                       // build the URL including the PT
+                       if ( strstr($url,'?') === FALSE ) {
+                               $service_url = $url.'?ticket='.$pt;
+                       } else {
+                               $service_url = $url.'&ticket='.$pt;
+                       }
+                       
+                       phpCAS::trace('reading URL`'.$service_url.'\'');
+                       if ( !$this->readURL($service_url,$cookies,$headers,$output,$err_msg) ) {
+                               phpCAS::trace('could not read URL`'.$service_url.'\'');
+                               $err_code = PHPCAS_SERVICE_NOT_AVAILABLE;
+                               // give an error message
+                               $output = sprintf($this->getString(CAS_STR_SERVICE_UNAVAILABLE),
+                                       $service_url,
+                                       $err_msg);
+                               $res = FALSE;
+                       } else {
+                               // URL has been fetched, extract the cookies
+                               phpCAS::trace('URL`'.$service_url.'\' has been read, storing cookies:');
+                               $this->setCookies($headers,$url);
+                               // Check for a possible redirect (phpCAS authenticiation redirect after ticket removal)
+                               foreach($headers as $header){
+                                       if (preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches))
+                                       {
+                                               $redirect_url = trim(array_pop($matches));
+                                               phpCAS :: trace('Found redirect:'.$redirect_url);
+                                               $cookies = $this->getCookies($redirect_url);
+                                               phpCAS::trace('reading URL`'.$redirect_url.'\'');
+                                               if ( !$this->readURL($redirect_url,$cookies,$headers,$output,$err_msg) ) {
+                                                       phpCAS::trace('could not read URL`'.$redirect_url.'\'');
+                                                       $err_code = PHPCAS_SERVICE_NOT_AVAILABLE;
+                                                       // give an error message
+                                                       $output = sprintf($this->getString(CAS_STR_SERVICE_UNAVAILABLE),
+                                                               $service_url,
+                                                               $err_msg);
+                                                       $res = FALSE;
+                                               } else {
+                                                       // URL has been fetched, extract the cookies
+                                                       phpCAS::trace('URL`'.$redirect_url.'\' has been read, storing cookies:');
+                                                       $this->setCookies($headers,$redirect_url);
+                                               }
+                                               break;
+                                       }
+                               }
+                       }
+               }
+               
+               phpCAS::traceEnd($res);
+               return $res;
+               }
+       
+       /**
+        * This method stores cookies from a HTTP Header in the session
+        * @param $header HTTP Header
+        * @param $url the url the Header is from
+        */
+       
+       function setCookies($headers,$url){
+               phpCAS::traceBegin();
+               foreach ( $headers as $header ) {
+                       // test if the header is a cookie
+                       if ( preg_match('/^Set-Cookie:/',$header) ) {
+                               // the header is a cookie, remove the beginning
+                               $header_val = preg_replace('/^Set-Cookie: */','',$header);
+                               // extract interesting information
+                               $name_val = strtok($header_val,'; ');
+                               // extract the name and the value of the cookie
+                               $cookie_name = strtok($name_val,'=');
+                               $cookie_val = strtok('=');
+                               // store the cookie 
+                               $_SESSION['phpCAS']['services'][$url]['cookies'][$cookie_name] = $cookie_val;
+                               phpCAS::trace($cookie_name.' -> '.$cookie_val);
+                       }
+               }
+               phpCAS::traceEnd();
+       }
+       
+       /**
+        * This method get the cookies from the session
+        */
+        
+       function getCookies($url){
+               $cookies = array();
+               if ( isset($_SESSION['phpCAS']['services'][$url]['cookies']) && 
+                               is_array($_SESSION['phpCAS']['services'][$url]['cookies']) ) {
+                       foreach ( $_SESSION['phpCAS']['services'][$url]['cookies'] as $name => $val ) { 
+                               $cookies[] = $name.'='.$val;
+                       }
+               }
+               return $cookies;
+       }
+       
+       /**
+        * This method is used to access an IMAP/POP3/NNTP service.
+        * 
+        * @param $url a string giving the URL of the service, including the mailing box
+        * for IMAP URLs, as accepted by imap_open().
+        * @param $service a string giving for CAS retrieve Proxy ticket
+        * @param $flags options given to imap_open().
+        * @param $err_code an error code Possible values are PHPCAS_SERVICE_OK (on
+        * success), PHPCAS_SERVICE_PT_NO_SERVER_RESPONSE, PHPCAS_SERVICE_PT_BAD_SERVER_RESPONSE,
+        * PHPCAS_SERVICE_PT_FAILURE, PHPCAS_SERVICE_NOT AVAILABLE.
+        * @param $err_msg an error message on failure
+        * @param $pt the Proxy Ticket (PT) retrieved from the CAS server to access the URL
+        * on success, FALSE on error).
+        *
+        * @return an IMAP stream on success, FALSE otherwise (in this later case, $err_code
+        * gives the reason why it failed and $err_msg contains an error message).
+        *
+        * @public
+        */
+       function serviceMail($url,$service,$flags,&$err_code,&$err_msg,&$pt)
+               {
+               phpCAS::traceBegin();
+               // at first retrieve a PT
+               $pt = $this->retrievePT($service,$err_code,$output);
+               
+               $stream = FALSE;
+               
+               // test if PT was retrieved correctly
+               if ( !$pt ) {
+                       // note: $err_code and $err_msg are filled by CASClient::retrievePT()
+                       phpCAS::trace('PT was not retrieved correctly');
+               } else {
+                       phpCAS::trace('opening IMAP URL `'.$url.'\'...');
+                       $stream = @imap_open($url,$this->getUser(),$pt,$flags);
+                       if ( !$stream ) {
+                               phpCAS::trace('could not open URL');
+                               $err_code = PHPCAS_SERVICE_NOT_AVAILABLE;
+                               // give an error message
+                               $err_msg = sprintf($this->getString(CAS_STR_SERVICE_UNAVAILABLE),
+                                       $service_url,
+                                       var_export(imap_errors(),TRUE));
+                               $pt = FALSE;
+                               $stream = FALSE;
+                       } else {
+                               phpCAS::trace('ok');
+                       }
+               }
+               
+               phpCAS::traceEnd($stream);
+               return $stream;
+               }
+       
+       /** @} */
+       
+       // XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+       // XX                                                                    XX
+       // XX                  PROXIED CLIENT FEATURES (CAS 2.0)                 XX
+       // XX                                                                    XX
+       // XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+       
+       // ########################################################################
+       //  PT
+       // ########################################################################
+       /**
+        * @addtogroup internalProxied
+        * @{
+        */  
+       
+       /**
+        * the Proxy Ticket provided in the URL of the request if present
+        * (empty otherwise). Written by CASClient::CASClient(), read by 
+        * CASClient::getPT() and CASClient::hasPGT().
+        *
+        * @hideinitializer
+        * @private
+        */
+       var $_pt = '';
+       
+       /**
+        * This method returns the Proxy Ticket provided in the URL of the request.
+        * @return The proxy ticket.
+        * @private
+        */
+       function getPT()
+               {
+               //      return 'ST'.substr($this->_pt, 2);
+               return $this->_pt;
+               }
+       
+       /**
+        * This method stores the Proxy Ticket.
+        * @param $pt The Proxy Ticket.
+        * @private
+        */
+       function setPT($pt)
+               { $this->_pt = $pt; }
+       
+       /**
+        * This method tells if a Proxy Ticket was stored.
+        * @return TRUE if a Proxy Ticket has been stored.
+        * @private
+        */
+       function hasPT()
+               { return !empty($this->_pt); }
+       /**
+        * This method returns the SAML Ticket provided in the URL of the request.
+        * @return The SAML ticket.
+        * @private
+        */
+       function getSA()
+               { return 'ST'.substr($this->_sa, 2); }
+       
+       /**
+        * This method stores the SAML Ticket.
+        * @param $sa The SAML Ticket.
+        * @private
+        */
+       function setSA($sa)
+               { $this->_sa = $sa; }
+       
+       /**
+        * This method tells if a SAML Ticket was stored.
+        * @return TRUE if a SAML Ticket has been stored.
+        * @private
+        */
+       function hasSA()
+               { return !empty($this->_sa); }
+       
+       /** @} */
+       // ########################################################################
+       //  PT VALIDATION
+       // ########################################################################
+       /**
+        * @addtogroup internalProxied
+        * @{
+        */  
+       
+       /**
+        * This method is used to validate a ST or PT; halt on failure
+        * Used for all CAS 2.0 validations
+        * @return bool TRUE when successfull, halt otherwise by calling CASClient::authError().
+        *
+        * @private
+        */
+       function validatePT(&$validate_url,&$text_response,&$tree_response)
+               {
+               phpCAS::traceBegin();
+               // build the URL to validate the ticket
+               $validate_url = $this->getServerProxyValidateURL().'&ticket='.$this->getPT();
+               
+               if ( $this->isProxy() ) {
+                       // pass the callback url for CAS proxies
+                       $validate_url .= '&pgtUrl='.urlencode($this->getCallbackURL());
+               }
+               
+               // open and read the URL
+               if ( !$this->readURL($validate_url,''/*cookies*/,$headers,$text_response,$err_msg) ) {
+                       phpCAS::trace('could not open URL \''.$validate_url.'\' to validate ('.$err_msg.')');
+                       $this->authError('PT not validated',
+                               $validate_url,
+                               TRUE/*$no_response*/);
+               }
+               
+               // read the response of the CAS server into a DOM object
+               if ( !($dom = domxml_open_mem($text_response))) {
+                       // read failed
+                       $this->authError('PT not validated',
+                               $validate_url,
+                               FALSE/*$no_response*/,
+                               TRUE/*$bad_response*/,
+                               $text_response);
+               }
+               // read the root node of the XML tree
+               if ( !($tree_response = $dom->document_element()) ) {
+                       // read failed
+                       $this->authError('PT not validated',
+                               $validate_url,
+                               FALSE/*$no_response*/,
+                               TRUE/*$bad_response*/,
+                               $text_response);
+               }
+               // insure that tag name is 'serviceResponse'
+               if ( $tree_response->node_name() != 'serviceResponse' ) {
+                       // bad root node
+                       $this->authError('PT not validated',
+                               $validate_url,
+                               FALSE/*$no_response*/,
+                               TRUE/*$bad_response*/,
+                               $text_response);
+               }
+               if ( sizeof($arr = $tree_response->get_elements_by_tagname("authenticationSuccess")) != 0) {
+                       // authentication succeded, extract the user name
+                       if ( sizeof($arr = $tree_response->get_elements_by_tagname("user")) == 0) {
+                               // no user specified => error
+                               $this->authError('PT not validated',
+                                       $validate_url,
+                                       FALSE/*$no_response*/,
+                                       TRUE/*$bad_response*/,
+                                       $text_response);
+                       }
+                       $this->setUser(trim($arr[0]->get_content()));
+                       
+               } else if ( sizeof($arr = $tree_response->get_elements_by_tagname("authenticationFailure")) != 0) {
+                       // authentication succeded, extract the error code and message
+                       $this->authError('PT not validated',
+                               $validate_url,
+                               FALSE/*$no_response*/,
+                               FALSE/*$bad_response*/,
+                               $text_response,
+                               $arr[0]->get_attribute('code')/*$err_code*/,
+                               trim($arr[0]->get_content())/*$err_msg*/);
+               } else {
+                       $this->authError('PT not validated',
+                               $validate_url,  
+                               FALSE/*$no_response*/,
+                               TRUE/*$bad_response*/,
+                               $text_response);
+               }
+               
+               $this->renameSession($this->getPT());
+               // at this step, PT has been validated and $this->_user has been set,
+               
+               phpCAS::traceEnd(TRUE);
+               return TRUE;
+               }
+       
+       /** @} */
+       
+       // XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+       // XX                                                                    XX
+       // XX                               MISC                                 XX
+       // XX                                                                    XX
+       // XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+       
+       /**
+        * @addtogroup internalMisc
+        * @{
+        */  
+       
+       // ########################################################################
+       //  URL
+       // ########################################################################
+       /**
+        * the URL of the current request (without any ticket CGI parameter). Written 
+        * and read by CASClient::getURL().
+        *
+        * @hideinitializer
+        * @private
+        */
+       var $_url = '';
+       
+       /**
+        * This method returns the URL of the current request (without any ticket
+        * CGI parameter).
+        *
+        * @return The URL
+        *
+        * @private
+        */
+       function getURL()
+               {
+               phpCAS::traceBegin();
+               // the URL is built when needed only
+               if ( empty($this->_url) ) {
+                       $final_uri = '';
+                       // remove the ticket if present in the URL
+                       $final_uri = ($this->isHttps()) ? 'https' : 'http';
+                       $final_uri .= '://';
+                       /* replaced by Julien Marchal - v0.4.6
+                        * $this->_url .= $_SERVER['SERVER_NAME'];
+                        */
+                       if(empty($_SERVER['HTTP_X_FORWARDED_SERVER'])){
+                               /* replaced by teedog - v0.4.12
+                                * $this->_url .= $_SERVER['SERVER_NAME'];
+                                */
+                               if (empty($_SERVER['SERVER_NAME'])) {
+                                       $server_name = $_SERVER['HTTP_HOST'];
+                               } else {
+                                       $server_name = $_SERVER['SERVER_NAME'];
+                               }
+                       } else {
+                               $server_name = $_SERVER['HTTP_X_FORWARDED_SERVER'];
+                       }
+                       $final_uri .= $server_name;
+                       if (!strpos($server_name, ':')) {
+                               if ( ($this->isHttps() && $_SERVER['SERVER_PORT']!=443)
+                                               || (!$this->isHttps() && $_SERVER['SERVER_PORT']!=80) ) {
+                                       $final_uri .= ':';
+                                       $final_uri .= $_SERVER['SERVER_PORT'];
+                               }
+                       }
+                       
+                       $request_uri    = explode('?', $_SERVER['REQUEST_URI'], 2);
+                       $final_uri              .= $request_uri[0];
+                       
+                       if (isset($request_uri[1]) && $request_uri[1])
+                       {
+                               $query_string   = $this->removeParameterFromQueryString('ticket', $request_uri[1]);
+                               
+                               // If the query string still has anything left, append it to the final URI
+                               if ($query_string !== '')
+                                       $final_uri      .= "?$query_string";
+                               
+                       }
+                       
+                       phpCAS::trace("Final URI: $final_uri");
+                       $this->setURL($final_uri);
+               }
+               phpCAS::traceEnd($this->_url);
+               return $this->_url;
+       }
+       
+
+               
+       /**
+        * Removes a parameter from a query string
+        * 
+        * @param string $parameterName 
+        * @param string $queryString
+        * @return string
+        *
+        * @link http://stackoverflow.com/questions/1842681/regular-expression-to-remove-one-parameter-from-query-string
+        */
+       function removeParameterFromQueryString($parameterName, $queryString)
+       {
+               $parameterName  = preg_quote($parameterName);
+               return preg_replace("/&$parameterName(=[^&]*)?|^$parameterName(=[^&]*)?&?/", '', $queryString);
+       }
+
+       
+       /**
+        * This method sets the URL of the current request 
+        *
+        * @param $url url to set for service
+        *
+        * @private
+        */
+       function setURL($url)
+               {
+               $this->_url = $url;
+               }
+       
+       // ########################################################################
+       //  AUTHENTICATION ERROR HANDLING
+       // ########################################################################
+       /**
+        * This method is used to print the HTML output when the user was not authenticated.
+        *
+        * @param $failure the failure that occured
+        * @param $cas_url the URL the CAS server was asked for
+        * @param $no_response the response from the CAS server (other 
+        * parameters are ignored if TRUE)
+        * @param $bad_response bad response from the CAS server ($err_code
+        * and $err_msg ignored if TRUE)
+        * @param $cas_response the response of the CAS server
+        * @param $err_code the error code given by the CAS server
+        * @param $err_msg the error message given by the CAS server
+        *
+        * @private
+        */
+       function authError($failure,$cas_url,$no_response,$bad_response='',$cas_response='',$err_code='',$err_msg='')
+               {
+               phpCAS::traceBegin();
+               
+               $this->printHTMLHeader($this->getString(CAS_STR_AUTHENTICATION_FAILED));
+               printf($this->getString(CAS_STR_YOU_WERE_NOT_AUTHENTICATED),htmlentities($this->getURL()),$_SERVER['SERVER_ADMIN']);
+               phpCAS::trace('CAS URL: '.$cas_url);
+               phpCAS::trace('Authentication failure: '.$failure);
+               if ( $no_response ) {
+                       phpCAS::trace('Reason: no response from the CAS server');
+               } else {
+                       if ( $bad_response ) {
+                               phpCAS::trace('Reason: bad response from the CAS server');
+                       } else {
+                               switch ($this->getServerVersion()) {
+                                       case CAS_VERSION_1_0:
+                                               phpCAS::trace('Reason: CAS error');
+                                               break;
+                                       case CAS_VERSION_2_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);
+               }
+               $this->printHTMLFooter();
+               phpCAS::traceExit();
+               exit();
+               }
+       
+       /** @} */
+}
+
+?>
diff --git a/CAS/CAS/domxml-php4-to-php5.php b/CAS/CAS/domxml-php4-to-php5.php
new file mode 100644 (file)
index 0000000..966836d
--- /dev/null
@@ -0,0 +1,499 @@
+<?php
+/*
+       Requires PHP5, uses built-in DOM extension.
+       To be used in PHP4 scripts using DOMXML extension: allows PHP4/DOMXML scripts to run on PHP5/DOM.
+       (Optional: requires PHP5/XSL extension for domxml_xslt functions, PHP>=5.1 for XPath evaluation functions, and PHP>=5.1/libxml for DOMXML error reports)
+
+       Typical use:
+       {
+               if (PHP_VERSION>='5')
+                       require_once('domxml-php4-to-php5.php');
+       }
+
+       Version 1.21.1a, 2009-03-13, http://alexandre.alapetite.fr/doc-alex/domxml-php4-php5/
+
+       ------------------------------------------------------------------
+       Written by Alexandre Alapetite, http://alexandre.alapetite.fr/cv/
+
+       Copyright 2004-2009, GNU Lesser General Public License,
+       http://www.gnu.org/licenses/lgpl.html
+
+       This program is free software: you can redistribute it and/or modify
+       it under the terms of the GNU Lesser General Public License as published by
+       the Free Software Foundation, either version 3 of the License, or
+       (at your option) any later version.
+       This program is distributed in the hope that it will be useful,
+       but WITHOUT ANY WARRANTY; without even the implied warranty of
+       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+       GNU Lesser General Public License for more details.
+       You should have received a copy of the GNU Lesser General Public License
+       along with this program. If not, see <http://www.gnu.org/licenses/lgpl.html>
+
+       == Rights and obligations ==
+       - Attribution: You must give the original author credit.
+       - Share Alike: If you alter or transform this library,
+          you may distribute the resulting library only under the same license GNU/LGPL.
+       - In case of jurisdiction dispute, the French law is authoritative.
+       - Any of these conditions can be waived if you get permission from Alexandre Alapetite.
+       - Not required, but 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.fr/doc-alex/domxml-php4-php5/
+*/
+
+define('DOMXML_LOAD_PARSING',0);
+define('DOMXML_LOAD_VALIDATING',1);
+define('DOMXML_LOAD_RECOVERING',2);
+define('DOMXML_LOAD_SUBSTITUTE_ENTITIES',4);
+//define('DOMXML_LOAD_COMPLETE_ATTRS',8);
+define('DOMXML_LOAD_DONT_KEEP_BLANKS',16);
+
+function domxml_new_doc($version) {return new php4DOMDocument();}
+function domxml_new_xmldoc($version) {return new php4DOMDocument();}
+function domxml_open_file($filename,$mode=DOMXML_LOAD_PARSING,&$error=null)
+{
+       $dom=new php4DOMDocument($mode);
+       $errorMode=(func_num_args()>2)&&defined('LIBXML_VERSION');
+       if ($errorMode) libxml_use_internal_errors(true);
+       if (!$dom->myDOMNode->load($filename)) $dom=null;
+       if ($errorMode)
+       {
+               $error=array_map('_error_report',libxml_get_errors());
+               libxml_clear_errors();
+       }
+       return $dom;
+}
+function domxml_open_mem($str,$mode=DOMXML_LOAD_PARSING,&$error=null)
+{
+       $dom=new php4DOMDocument($mode);
+       $errorMode=(func_num_args()>2)&&defined('LIBXML_VERSION');
+       if ($errorMode) libxml_use_internal_errors(true);
+       if (!$dom->myDOMNode->loadXML($str)) $dom=null;
+       if ($errorMode)
+       {
+               $error=array_map('_error_report',libxml_get_errors());
+               libxml_clear_errors();
+       }
+       return $dom;
+}
+function html_doc($html_doc,$from_file=false)
+{
+       $dom=new php4DOMDocument();
+       if ($from_file) $result=$dom->myDOMNode->loadHTMLFile($html_doc);
+       else $result=$dom->myDOMNode->loadHTML($html_doc);
+       return $result ? $dom : null;
+}
+function html_doc_file($filename) {return html_doc($filename,true);}
+function xmldoc($str) {return domxml_open_mem($str);}
+function xmldocfile($filename) {return domxml_open_file($filename);}
+function xpath_eval($xpath_context,$eval_str,$contextnode=null) {return $xpath_context->xpath_eval($eval_str,$contextnode);}
+function xpath_new_context($dom_document) {return new php4DOMXPath($dom_document);}
+function xpath_register_ns($xpath_context,$prefix,$namespaceURI) {return $xpath_context->myDOMXPath->registerNamespace($prefix,$namespaceURI);}
+function _entityDecode($text) {return html_entity_decode(strtr($text,array('&apos;'=>'\'')),ENT_QUOTES,'UTF-8');}
+function _error_report($error) {return array('errormessage'=>$error->message,'nodename'=>'','line'=>$error->line,'col'=>$error->column)+($error->file==''?array():array('directory'=>dirname($error->file),'file'=>basename($error->file)));}
+
+class php4DOMAttr extends php4DOMNode
+{
+       function __get($name)
+       {
+               if ($name==='name') return $this->myDOMNode->name;
+               else return parent::__get($name);
+       }
+       function name() {return $this->myDOMNode->name;}
+       function set_content($text) {}
+       //function set_value($content) {return $this->myDOMNode->value=htmlspecialchars($content,ENT_QUOTES);}
+       function specified() {return $this->myDOMNode->specified;}
+       function value() {return $this->myDOMNode->value;}
+}
+
+class php4DOMDocument extends php4DOMNode
+{
+       function php4DOMDocument($mode=DOMXML_LOAD_PARSING)
+       {
+               $this->myDOMNode=new DOMDocument();
+               $this->myOwnerDocument=$this;
+               if ($mode & DOMXML_LOAD_VALIDATING) $this->myDOMNode->validateOnParse=true;
+               if ($mode & DOMXML_LOAD_RECOVERING) $this->myDOMNode->recover=true;
+               if ($mode & DOMXML_LOAD_SUBSTITUTE_ENTITIES) $this->myDOMNode->substituteEntities=true;
+               if ($mode & DOMXML_LOAD_DONT_KEEP_BLANKS) $this->myDOMNode->preserveWhiteSpace=false;
+       }
+       function add_root($name)
+       {
+               if ($this->myDOMNode->hasChildNodes()) $this->myDOMNode->removeChild($this->myDOMNode->firstChild);
+               return new php4DOMElement($this->myDOMNode->appendChild($this->myDOMNode->createElement($name)),$this->myOwnerDocument);
+       }
+       function create_attribute($name,$value)
+       {
+               $myAttr=$this->myDOMNode->createAttribute($name);
+               $myAttr->value=htmlspecialchars($value,ENT_QUOTES);
+               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_element_ns($uri,$name,$prefix=null)
+       {
+               if ($prefix==null) $prefix=$this->myDOMNode->lookupPrefix($uri);
+               if (($prefix==null)&&(($this->myDOMNode->documentElement==null)||(!$this->myDOMNode->documentElement->isDefaultNamespace($uri)))) $prefix='a'.sprintf('%u',crc32($uri));
+               return new php4DOMElement($this->myDOMNode->createElementNS($uri,$prefix==null ? $name : $prefix.':'.$name),$this);
+       }
+       function create_entity_reference($content) {return new php4DOMNode($this->myDOMNode->createEntityReference($content),$this);} //By Walter Ebert 2007-01-22
+       function create_processing_instruction($target,$data=''){return new php4DomProcessingInstruction($this->myDOMNode->createProcessingInstruction($target,$data),$this);}
+       function create_text_node($content) {return new php4DOMText($this->myDOMNode->createTextNode($content),$this);}
+       function document_element() {return parent::_newDOMElement($this->myDOMNode->documentElement,$this);}
+       function dump_file($filename,$compressionmode=false,$format=false)
+       {
+               $format0=$this->myDOMNode->formatOutput;
+               $this->myDOMNode->formatOutput=$format;
+               $res=$this->myDOMNode->save($filename);
+               $this->myDOMNode->formatOutput=$format0;
+               return $res;
+       }
+       function dump_mem($format=false,$encoding=false)
+       {
+               $format0=$this->myDOMNode->formatOutput;
+               $this->myDOMNode->formatOutput=$format;
+               $encoding0=$this->myDOMNode->encoding;
+               if ($encoding) $this->myDOMNode->encoding=$encoding;
+               $dump=$this->myDOMNode->saveXML();
+               $this->myDOMNode->formatOutput=$format0;
+               if ($encoding) $this->myDOMNode->encoding= $encoding0=='' ? 'UTF-8' : $encoding0; //UTF-8 is XML default encoding
+               return $dump;
+       }
+       function free()
+       {
+               if ($this->myDOMNode->hasChildNodes()) $this->myDOMNode->removeChild($this->myDOMNode->firstChild);
+               $this->myDOMNode=null;
+               $this->myOwnerDocument=null;
+       }
+       function get_element_by_id($id) {return parent::_newDOMElement($this->myDOMNode->getElementById($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);
+               return $nodeSet;
+       }
+       function html_dump_mem() {return $this->myDOMNode->saveHTML();}
+       function root() {return parent::_newDOMElement($this->myDOMNode->documentElement,$this);}
+       function xinclude() {return $this->myDOMNode->xinclude();}
+       function xpath_new_context() {return new php4DOMXPath($this);}
+}
+
+class php4DOMElement extends php4DOMNode
+{
+       function add_namespace($uri,$prefix)
+       {
+               if ($this->myDOMNode->hasAttributeNS('http://www.w3.org/2000/xmlns/',$prefix)) return false;
+               else
+               {
+                       $this->myDOMNode->setAttributeNS('http://www.w3.org/2000/xmlns/','xmlns:'.$prefix,$uri); //By Daniel Walker 2006-09-08
+                       return true;
+               }
+       }
+       function get_attribute($name) {return $this->myDOMNode->getAttribute($name);}
+       function get_attribute_node($name) {return parent::_newDOMElement($this->myDOMNode->getAttributeNode($name),$this->myOwnerDocument);}
+       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);
+               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); //Does not return a DomAttr
+               $myAttr=$this->myDOMNode->ownerDocument->createAttribute($name);
+               $myAttr->value=htmlspecialchars($value,ENT_QUOTES); //Entity problem reported by AL-DesignWorks 2007-09-07
+               $this->myDOMNode->setAttributeNode($myAttr);
+               return new php4DOMAttr($myAttr,$this->myOwnerDocument);
+       }
+       /*function set_attribute_node($attr)
+       {
+               $this->myDOMNode->setAttributeNode($this->_importNode($attr));
+               return $attr;
+       }*/
+       function set_name($name)
+       {
+               if ($this->myDOMNode->prefix=='') $newNode=$this->myDOMNode->ownerDocument->createElement($name);
+               else $newNode=$this->myDOMNode->ownerDocument->createElementNS($this->myDOMNode->namespaceURI,$this->myDOMNode->prefix.':'.$name);
+               $myDOMNodeList=$this->myDOMNode->attributes;
+               $i=0;
+               if (isset($myDOMNodeList))
+                       while ($node=$myDOMNodeList->item($i++))
+                               if ($node->namespaceURI=='') $newNode->setAttribute($node->name,$node->value);
+                               else $newNode->setAttributeNS($node->namespaceURI,$node->nodeName,$node->value);
+               $myDOMNodeList=$this->myDOMNode->childNodes;
+               if (isset($myDOMNodeList))
+                       while ($node=$myDOMNodeList->item(0)) $newNode->appendChild($node);
+               $this->myDOMNode->parentNode->replaceChild($newNode,$this->myDOMNode);
+               $this->myDOMNode=$newNode;
+               return true;
+       }
+       function tagname() {return $this->tagname;}
+}
+
+class php4DOMNode
+{
+       public $myDOMNode;
+       public $myOwnerDocument;
+       function php4DOMNode($aDomNode,$aOwnerDocument)
+       {
+               $this->myDOMNode=$aDomNode;
+               $this->myOwnerDocument=$aOwnerDocument;
+       }
+       function __get($name)
+       {
+               switch ($name)
+               {
+                       case 'type': return $this->myDOMNode->nodeType;
+                       case 'tagname': return ($this->myDOMNode->nodeType===XML_ELEMENT_NODE) ? $this->myDOMNode->localName : $this->myDOMNode->tagName; //Avoid namespace prefix for DOMElement
+                       case 'content': return $this->myDOMNode->textContent;
+                       case 'value': return $this->myDOMNode->value;
+                       default:
+                               $myErrors=debug_backtrace();
+                               trigger_error('Undefined property: '.get_class($this).'::$'.$name.' ['.$myErrors[0]['file'].':'.$myErrors[0]['line'].']',E_USER_NOTICE);
+                               return false;
+               }
+       }
+       function add_child($newnode) {return $this->append_child($newnode);}
+       function add_namespace($uri,$prefix) {return false;}
+       function append_child($newnode) {return self::_newDOMElement($this->myDOMNode->appendChild($this->_importNode($newnode)),$this->myOwnerDocument);}
+       function append_sibling($newnode) {return self::_newDOMElement($this->myDOMNode->parentNode->appendChild($this->_importNode($newnode)),$this->myOwnerDocument);}
+       function attributes()
+       {
+               $myDOMNodeList=$this->myDOMNode->attributes;
+               if (!(isset($myDOMNodeList)&&$this->myDOMNode->hasAttributes())) return null;
+               $nodeSet=array();
+               $i=0;
+               while ($node=$myDOMNodeList->item($i++)) $nodeSet[]=new php4DOMAttr($node,$this->myOwnerDocument);
+               return $nodeSet;
+       }
+       function child_nodes()
+       {
+               $myDOMNodeList=$this->myDOMNode->childNodes;
+               $nodeSet=array();
+               $i=0;
+               if (isset($myDOMNodeList))
+                       while ($node=$myDOMNodeList->item($i++)) $nodeSet[]=self::_newDOMElement($node,$this->myOwnerDocument);
+               return $nodeSet;
+       }
+       function children() {return $this->child_nodes();}
+       function clone_node($deep=false) {return self::_newDOMElement($this->myDOMNode->cloneNode($deep),$this->myOwnerDocument);}
+       //dump_node($node) should only be called on php4DOMDocument
+       function dump_node($node=null) {return $node==null ? $this->myOwnerDocument->myDOMNode->saveXML($this->myDOMNode) : $this->myOwnerDocument->myDOMNode->saveXML($node->myDOMNode);}
+       function first_child() {return self::_newDOMElement($this->myDOMNode->firstChild,$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,$refnode) {return self::_newDOMElement($this->myDOMNode->insertBefore($this->_importNode($newnode),$refnode==null?null:$refnode->myDOMNode),$this->myOwnerDocument);}
+       function is_blank_node() {return ($this->myDOMNode->nodeType===XML_TEXT_NODE)&&preg_match('%^\s*$%',$this->myDOMNode->nodeValue);}
+       function last_child() {return self::_newDOMElement($this->myDOMNode->lastChild,$this->myOwnerDocument);}
+       function new_child($name,$content)
+       {
+               $mySubNode=$this->myDOMNode->ownerDocument->createElement($name);
+               $mySubNode->appendChild($this->myDOMNode->ownerDocument->createTextNode(_entityDecode($content)));
+               $this->myDOMNode->appendChild($mySubNode);
+               return new php4DOMElement($mySubNode,$this->myOwnerDocument);
+       }
+       function next_sibling() {return self::_newDOMElement($this->myDOMNode->nextSibling,$this->myOwnerDocument);}
+       function node_name() {return ($this->myDOMNode->nodeType===XML_ELEMENT_NODE) ? $this->myDOMNode->localName : $this->myDOMNode->nodeName;} //Avoid namespace prefix for DOMElement
+       function node_type() {return $this->myDOMNode->nodeType;}
+       function node_value() {return $this->myDOMNode->nodeValue;}
+       function owner_document() {return $this->myOwnerDocument;}
+       function parent_node() {return self::_newDOMElement($this->myDOMNode->parentNode,$this->myOwnerDocument);}
+       function prefix() {return $this->myDOMNode->prefix;}
+       function previous_sibling() {return self::_newDOMElement($this->myDOMNode->previousSibling,$this->myOwnerDocument);}
+       function remove_child($oldchild) {return self::_newDOMElement($this->myDOMNode->removeChild($oldchild->myDOMNode),$this->myOwnerDocument);}
+       function replace_child($newnode,$oldnode) {return self::_newDOMElement($this->myDOMNode->replaceChild($this->_importNode($newnode),$oldnode->myDOMNode),$this->myOwnerDocument);}
+       function replace_node($newnode) {return self::_newDOMElement($this->myDOMNode->parentNode->replaceChild($this->_importNode($newnode),$this->myDOMNode),$this->myOwnerDocument);}
+       function set_content($text) {return $this->myDOMNode->appendChild($this->myDOMNode->ownerDocument->createTextNode(_entityDecode($text)));} //Entity problem reported by AL-DesignWorks 2007-09-07
+       //function set_name($name) {return $this->myOwnerDocument->renameNode($this->myDOMNode,$this->myDOMNode->namespaceURI,$name);}
+       function set_namespace($uri,$prefix=null)
+       {//Contributions by Daniel Walker 2006-09-08
+               $nsprefix=$this->myDOMNode->lookupPrefix($uri);
+               if ($nsprefix==null)
+               {
+                       $nsprefix= $prefix==null ? $nsprefix='a'.sprintf('%u',crc32($uri)) : $prefix;
+                       if ($this->myDOMNode->nodeType===XML_ATTRIBUTE_NODE)
+                       {
+                               if (($prefix!=null)&&$this->myDOMNode->ownerElement->hasAttributeNS('http://www.w3.org/2000/xmlns/',$nsprefix)&&
+                                       ($this->myDOMNode->ownerElement->getAttributeNS('http://www.w3.org/2000/xmlns/',$nsprefix)!=$uri))
+                               {//Remove namespace
+                                       $parent=$this->myDOMNode->ownerElement;
+                                       $parent->removeAttributeNode($this->myDOMNode);
+                                       $parent->setAttribute($this->myDOMNode->localName,$this->myDOMNode->nodeValue);
+                                       $this->myDOMNode=$parent->getAttributeNode($this->myDOMNode->localName);
+                                       return;
+                               }
+                               $this->myDOMNode->ownerElement->setAttributeNS('http://www.w3.org/2000/xmlns/','xmlns:'.$nsprefix,$uri);
+                       }
+               }
+               if ($this->myDOMNode->nodeType===XML_ATTRIBUTE_NODE)
+               {
+                       $parent=$this->myDOMNode->ownerElement;
+                       $parent->removeAttributeNode($this->myDOMNode);
+                       $parent->setAttributeNS($uri,$nsprefix.':'.$this->myDOMNode->localName,$this->myDOMNode->nodeValue);
+                       $this->myDOMNode=$parent->getAttributeNodeNS($uri,$this->myDOMNode->localName);
+               }
+               elseif ($this->myDOMNode->nodeType===XML_ELEMENT_NODE)
+               {
+                       $NewNode=$this->myDOMNode->ownerDocument->createElementNS($uri,$nsprefix.':'.$this->myDOMNode->localName);
+                       foreach ($this->myDOMNode->attributes as $n) $NewNode->appendChild($n->cloneNode(true));
+                       foreach ($this->myDOMNode->childNodes as $n) $NewNode->appendChild($n->cloneNode(true));
+                       $xpath=new DOMXPath($this->myDOMNode->ownerDocument);
+                       $myDOMNodeList=$xpath->query('namespace::*[name()!="xml"]',$this->myDOMNode); //Add old namespaces
+                       foreach ($myDOMNodeList as $n) $NewNode->setAttributeNS('http://www.w3.org/2000/xmlns/',$n->nodeName,$n->nodeValue); 
+                       $this->myDOMNode->parentNode->replaceChild($NewNode,$this->myDOMNode);
+                       $this->myDOMNode=$NewNode;
+               }
+       }
+       function unlink_node()
+       {
+               if ($this->myDOMNode->parentNode!=null)
+               {
+                       if ($this->myDOMNode->nodeType===XML_ATTRIBUTE_NODE) $this->myDOMNode->parentNode->removeAttributeNode($this->myDOMNode);
+                       else $this->myDOMNode->parentNode->removeChild($this->myDOMNode);
+               }
+       }
+       protected function _importNode($newnode) {return $this->myOwnerDocument===$newnode->myOwnerDocument ? $newnode->myDOMNode : $this->myOwnerDocument->myDOMNode->importNode($newnode->myDOMNode,true);} //To import DOMNode from another DOMDocument
+       static function _newDOMElement($aDOMNode,$aOwnerDocument)
+       {//Check the PHP5 DOMNode before creating a new associated PHP4 DOMNode wrapper
+               if ($aDOMNode==null) return null;
+               switch ($aDOMNode->nodeType)
+               {
+                       case XML_ELEMENT_NODE: return new php4DOMElement($aDOMNode,$aOwnerDocument);
+                       case XML_TEXT_NODE: return new php4DOMText($aDOMNode,$aOwnerDocument);
+                       case XML_ATTRIBUTE_NODE: return new php4DOMAttr($aDOMNode,$aOwnerDocument);
+                       case XML_PI_NODE: return new php4DomProcessingInstruction($aDOMNode,$aOwnerDocument);
+                       default: return new php4DOMNode($aDOMNode,$aOwnerDocument);
+               }
+       }
+}
+
+class php4DomProcessingInstruction extends php4DOMNode
+{
+       function data() {return $this->myDOMNode->data;}
+       function target() {return $this->myDOMNode->target;}
+}
+
+class php4DOMText extends php4DOMNode
+{
+       function __get($name)
+       {
+               if ($name==='tagname') return '#text';
+               else return parent::__get($name);
+       }
+       function tagname() {return '#text';}
+       function set_content($text) {$this->myDOMNode->nodeValue=$text; return true;}
+}
+
+if (!defined('XPATH_NODESET'))
+{
+       define('XPATH_UNDEFINED',0);
+       define('XPATH_NODESET',1);
+       define('XPATH_BOOLEAN',2);
+       define('XPATH_NUMBER',3);
+       define('XPATH_STRING',4);
+       /*define('XPATH_POINT',5);
+       define('XPATH_RANGE',6);
+       define('XPATH_LOCATIONSET',7);
+       define('XPATH_USERS',8);
+       define('XPATH_XSLT_TREE',9);*/
+}
+
+class php4DOMNodelist
+{
+       private $myDOMNodelist;
+       public $nodeset;
+       public $type=XPATH_UNDEFINED;
+       public $value;
+       function php4DOMNodelist($aDOMNodelist,$aOwnerDocument)
+       {
+               if (!isset($aDOMNodelist)) return; 
+               elseif (is_object($aDOMNodelist)||is_array($aDOMNodelist))
+               {
+                       if ($aDOMNodelist->length>0)
+                       {
+                               $this->myDOMNodelist=$aDOMNodelist;
+                               $this->nodeset=array();
+                               $this->type=XPATH_NODESET;
+                               $i=0;
+                               while ($node=$this->myDOMNodelist->item($i++)) $this->nodeset[]=php4DOMNode::_newDOMElement($node,$aOwnerDocument);
+                       }
+               }
+               elseif (is_int($aDOMNodelist)||is_float($aDOMNodelist))
+               {
+                       $this->type=XPATH_NUMBER;
+                       $this->value=$aDOMNodelist;
+               }
+               elseif (is_bool($aDOMNodelist))
+               {
+                       $this->type=XPATH_BOOLEAN;
+                       $this->value=$aDOMNodelist;
+               }
+               elseif (is_string($aDOMNodelist))
+               {
+                       $this->type=XPATH_STRING;
+                       $this->value=$aDOMNodelist;
+               }
+       }
+}
+
+class php4DOMXPath
+{
+       public $myDOMXPath;
+       private $myOwnerDocument;
+       function php4DOMXPath($dom_document)
+       {
+               //TODO: If $dom_document is a DomElement, make that default $contextnode and modify XPath. Ex: '/test'
+               $this->myOwnerDocument=$dom_document->myOwnerDocument;
+               $this->myDOMXPath=new DOMXPath($this->myOwnerDocument->myDOMNode);
+       }
+       function xpath_eval($eval_str,$contextnode=null)
+       {
+               if (method_exists($this->myDOMXPath,'evaluate')) $xp=isset($contextnode->myDOMNode) ? $this->myDOMXPath->evaluate($eval_str,$contextnode->myDOMNode) : $this->myDOMXPath->evaluate($eval_str);
+               else $xp=isset($contextnode->myDOMNode) ? $this->myDOMXPath->query($eval_str,$contextnode->myDOMNode) : $this->myDOMXPath->query($eval_str);
+               $xp=new php4DOMNodelist($xp,$this->myOwnerDocument);
+               return ($xp->type===XPATH_UNDEFINED) ? false : $xp;
+       }
+       function xpath_register_ns($prefix,$namespaceURI) {return $this->myDOMXPath->registerNamespace($prefix,$namespaceURI);}
+}
+
+if (extension_loaded('xsl'))
+{//See also: http://alexandre.alapetite.fr/doc-alex/xslt-php4-php5/
+       function domxml_xslt_stylesheet($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
+       {
+               private $myxsltProcessor;
+               function php4DomXsltStylesheet($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 $dom_document->myDOMNode->saveHTML();}
+       }
+}
+?>
diff --git a/CAS/CAS/languages/catalan.php b/CAS/CAS/languages/catalan.php
new file mode 100644 (file)
index 0000000..3d67473
--- /dev/null
@@ -0,0 +1,27 @@
+<?php\r
+\r
+/**\r
+ * @file languages/spanish.php\r
+ * @author Iván-Benjamín García Torà <ivaniclixx AT gmail DOT com>\r
+ * @sa @link internalLang Internationalization @endlink\r
+ * @ingroup internalLang\r
+ */\r
+\r
+$this->_strings = array(\r
+ CAS_STR_USING_SERVER \r
+ => 'usant servidor',\r
+ CAS_STR_AUTHENTICATION_WANTED \r
+ => 'Autentificació CAS necessària!',\r
+ CAS_STR_LOGOUT \r
+ => 'Sortida de CAS necessària!',\r
+ CAS_STR_SHOULD_HAVE_BEEN_REDIRECTED \r
+ => 'Ja hauria d\ haver estat redireccionat al servidor CAS. Feu click <a href="%s">aquí</a> per a continuar.',\r
+ CAS_STR_AUTHENTICATION_FAILED \r
+ => 'Autentificació CAS fallida!',\r
+ CAS_STR_YOU_WERE_NOT_AUTHENTICATED \r
+ => '<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>',\r
+ CAS_STR_SERVICE_UNAVAILABLE\r
+ => 'El servei `<b>%s</b>\' no està disponible (<b>%s</b>).'\r
+);\r
+\r
+?>\r
diff --git a/CAS/CAS/languages/english.php b/CAS/CAS/languages/english.php
new file mode 100644 (file)
index 0000000..c143450
--- /dev/null
@@ -0,0 +1,27 @@
+<?php\r
+\r
+/**\r
+ * @file languages/english.php\r
+ * @author Pascal Aubry <pascal.aubry at univ-rennes1.fr>\r
+ * @sa @link internalLang Internationalization @endlink\r
+ * @ingroup internalLang\r
+ */\r
+\r
+$this->_strings = array(\r
+ CAS_STR_USING_SERVER \r
+ => 'using server',\r
+ CAS_STR_AUTHENTICATION_WANTED \r
+ => 'CAS Authentication wanted!',\r
+ CAS_STR_LOGOUT \r
+ => 'CAS logout wanted!',\r
+ CAS_STR_SHOULD_HAVE_BEEN_REDIRECTED \r
+ => 'You should already have been redirected to the CAS server. Click <a href="%s">here</a> to continue.',\r
+ CAS_STR_AUTHENTICATION_FAILED \r
+ => 'CAS Authentication failed!',\r
+ CAS_STR_YOU_WERE_NOT_AUTHENTICATED \r
+ => '<p>You were not authenticated.</p><p>You may submit your request again by clicking <a href="%s">here</a>.</p><p>If the problem persists, you may contact <a href="mailto:%s">the administrator of this site</a>.</p>',\r
+ CAS_STR_SERVICE_UNAVAILABLE\r
+ => 'The service `<b>%s</b>\' is not available (<b>%s</b>).'\r
+);\r
+\r
+?>
\ No newline at end of file
diff --git a/CAS/CAS/languages/french.php b/CAS/CAS/languages/french.php
new file mode 100644 (file)
index 0000000..b077ec0
--- /dev/null
@@ -0,0 +1,28 @@
+<?php\r
+\r
+/**\r
+ * @file languages/english.php\r
+ * @author Pascal Aubry <pascal.aubry at univ-rennes1.fr>\r
+ * @sa @link internalLang Internationalization @endlink\r
+ * @ingroup internalLang\r
+ */\r
+\r
+$this->_strings = array(\r
+ CAS_STR_USING_SERVER \r
+ => 'utilisant le serveur',\r
+ CAS_STR_AUTHENTICATION_WANTED \r
+ => 'Authentication CAS n�cessaire&nbsp;!',\r
+ CAS_STR_LOGOUT \r
+ => 'D�connexion demand�e&nbsp;!',\r
+ CAS_STR_SHOULD_HAVE_BEEN_REDIRECTED \r
+ => 'Vous auriez du etre redirig�(e) vers le serveur CAS. Cliquez <a href="%s">ici</a> pour continuer.',\r
+ CAS_STR_AUTHENTICATION_FAILED \r
+ => 'Authentification CAS infructueuse&nbsp;!',\r
+ CAS_STR_YOU_WERE_NOT_AUTHENTICATED \r
+ => '<p>Vous n\'avez pas �t� authentifi�(e).</p><p>Vous pouvez soumettre votre requete � nouveau en cliquant <a href="%s">ici</a>.</p><p>Si le probl�me persiste, vous pouvez contacter <a href="mailto:%s">l\'administrateur de ce site</a>.</p>',\r
+ CAS_STR_SERVICE_UNAVAILABLE\r
+ => 'Le service `<b>%s</b>\' est indisponible (<b>%s</b>)'\r
+\r
+);\r
+\r
+?>
\ No newline at end of file
diff --git a/CAS/CAS/languages/german.php b/CAS/CAS/languages/german.php
new file mode 100644 (file)
index 0000000..29daeb3
--- /dev/null
@@ -0,0 +1,27 @@
+<?php\r
+\r
+/**\r
+ * @file languages/german.php\r
+ * @author Henrik Genssen <hg at mediafactory.de>\r
+ * @sa @link internalLang Internationalization @endlink\r
+ * @ingroup internalLang\r
+ */\r
+\r
+$this->_strings = array(\r
+ CAS_STR_USING_SERVER \r
+ => 'via Server',\r
+ CAS_STR_AUTHENTICATION_WANTED \r
+ => 'CAS Authentifizierung erforderlich!',\r
+ CAS_STR_LOGOUT \r
+ => 'CAS Abmeldung!',\r
+ CAS_STR_SHOULD_HAVE_BEEN_REDIRECTED \r
+ => 'eigentlich h&auml;ten Sie zum CAS Server weitergeleitet werden sollen. Dr&uuml;cken Sie <a href="%s">hier</a> um fortzufahren.',\r
+ CAS_STR_AUTHENTICATION_FAILED \r
+ => 'CAS Anmeldung fehlgeschlagen!',\r
+ CAS_STR_YOU_WERE_NOT_AUTHENTICATED \r
+ => '<p>Sie wurden nicht angemeldet.</p><p>Um es erneut zu versuchen klicken Sie <a href="%s">hier</a>.</p><p>Wenn das Problem bestehen bleibt, kontkatieren Sie den <a href="mailto:%s">Administrator</a> dieser Seite.</p>',\r
+ CAS_STR_SERVICE_UNAVAILABLE\r
+ => 'Der Dienst `<b>%s</b>\' ist nicht verf&uuml;gbar (<b>%s</b>).'\r
+);\r
+\r
+?>
\ No newline at end of file
diff --git a/CAS/CAS/languages/greek.php b/CAS/CAS/languages/greek.php
new file mode 100644 (file)
index 0000000..fdff77e
--- /dev/null
@@ -0,0 +1,27 @@
+<?php\r
+\r
+/**\r
+ * @file languages/greek.php\r
+ * @author Vangelis Haniotakis <haniotak at ucnet.uoc.gr>\r
+ * @sa @link internalLang Internationalization @endlink\r
+ * @ingroup internalLang\r
+ */\r
+\r
+$this->_strings = array(\r
+ CAS_STR_USING_SERVER \r
+ => '��������������� � ������������',\r
+ CAS_STR_AUTHENTICATION_WANTED \r
+ => '���������� � ����������� CAS!',\r
+ CAS_STR_LOGOUT \r
+ => '���������� � ���������� ��� CAS!',\r
+ CAS_STR_SHOULD_HAVE_BEEN_REDIRECTED \r
+ => '�� ������ �� ������ �������������� ���� ����������� CAS. ����� ���� <a href="%s">���</a> ��� �� ����������.',\r
+ CAS_STR_AUTHENTICATION_FAILED \r
+ => '� ����������� CAS �������!',\r
+ CAS_STR_YOU_WERE_NOT_AUTHENTICATED \r
+ => '<p>��� ���������������.</p><p>�������� �� ����������������, �������� ���� <a href="%s">���</a>.</p><p>��� �� �������� ���������, ����� �� ����� �� ��� <a href="mailto:%s">�����������</a>.</p>',\r
+ CAS_STR_SERVICE_UNAVAILABLE\r
+ => '� �������� `<b>%s</b>\' ��� ����� ��������� (<b>%s</b>).'\r
+);\r
+\r
+?>
\ No newline at end of file
diff --git a/CAS/CAS/languages/japanese.php b/CAS/CAS/languages/japanese.php
new file mode 100644 (file)
index 0000000..76ebe77
--- /dev/null
@@ -0,0 +1,27 @@
+<?php
+
+/**
+ * @file languages/japanese.php
+ * @author fnorif (fnorif@yahoo.co.jp)
+ * 
+ * Now Encoding is EUC-JP and LF
+ **/
+
+$this->_strings = array(
+ CAS_STR_USING_SERVER 
+ => 'using server',
+ CAS_STR_AUTHENTICATION_WANTED 
+ => 'CAS�ˤ��ǧ�ڤ�Ԥ��ޤ�',
+ CAS_STR_LOGOUT 
+ => 'CAS����?�����Ȥ��ޤ�!',
+ CAS_STR_SHOULD_HAVE_BEEN_REDIRECTED 
+ => 'CAS�����Ф˹Ԥ�ɬ�פ�����ޤ�����ưŪ��ž������ʤ����� <a href="%s">������</a> �򥯥�å�����³�Ԥ��ޤ���',
+ CAS_STR_AUTHENTICATION_FAILED 
+ => 'CAS�ˤ��ǧ�ڤ˼��Ԥ��ޤ���',
+ CAS_STR_YOU_WERE_NOT_AUTHENTICATED 
+ => '<p>ǧ�ڤǤ��ޤ���Ǥ���.</p><p>�⤦���٥ꥯ�����Ȥ������������<a href="%s">������</a>�򥯥�å�.</p><p>���꤬��褷�ʤ����� <a href="mailto:%s">���Υ����Ȥδ����</a>���䤤��碌�Ƥ�������.</p>',
+ CAS_STR_SERVICE_UNAVAILABLE
+ => '�����ӥ� `<b>%s</b>\' �����ѤǤ��ޤ��� (<b>%s</b>).'
+);
+
+?>
\ No newline at end of file
diff --git a/CAS/CAS/languages/languages.php b/CAS/CAS/languages/languages.php
new file mode 100644 (file)
index 0000000..2c6f8bb
--- /dev/null
@@ -0,0 +1,24 @@
+<?php\r
+\r
+/**\r
+ * @file languages/languages.php\r
+ * Internationalization constants\r
+ * @author Pascal Aubry <pascal.aubry at univ-rennes1.fr>\r
+ * @sa @link internalLang Internationalization @endlink\r
+ * @ingroup internalLang\r
+ */\r
+\r
+//@{\r
+/**\r
+ * a phpCAS string index\r
+ */\r
+define("CAS_STR_USING_SERVER",                1);\r
+define("CAS_STR_AUTHENTICATION_WANTED",       2);\r
+define("CAS_STR_LOGOUT",                      3);\r
+define("CAS_STR_SHOULD_HAVE_BEEN_REDIRECTED", 4);\r
+define("CAS_STR_AUTHENTICATION_FAILED",       5);\r
+define("CAS_STR_YOU_WERE_NOT_AUTHENTICATED",  6);\r
+define("CAS_STR_SERVICE_UNAVAILABLE",         7);\r
+//@}\r
+\r
+?>
\ No newline at end of file
diff --git a/CAS/CAS/languages/spanish.php b/CAS/CAS/languages/spanish.php
new file mode 100644 (file)
index 0000000..3a8ffc2
--- /dev/null
@@ -0,0 +1,27 @@
+<?php\r
+\r
+/**\r
+ * @file languages/spanish.php\r
+ * @author Iván-Benjamín García Torà <ivaniclixx AT gmail DOT com>\r
+ * @sa @link internalLang Internationalization @endlink\r
+ * @ingroup internalLang\r
+ */\r
+\r
+$this->_strings = array(\r
+ CAS_STR_USING_SERVER \r
+ => 'usando servidor',\r
+ CAS_STR_AUTHENTICATION_WANTED \r
+ => '¡Autentificación CAS necesaria!',\r
+ CAS_STR_LOGOUT \r
+ => '¡Salida CAS necesaria!',\r
+ CAS_STR_SHOULD_HAVE_BEEN_REDIRECTED \r
+ => 'Ya debería haber sido redireccionado al servidor CAS. Haga click <a href="%s">aquí</a> para continuar.',\r
+ CAS_STR_AUTHENTICATION_FAILED \r
+ => '¡Autentificación CAS fallida!',\r
+ CAS_STR_YOU_WERE_NOT_AUTHENTICATED \r
+ => '<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>',\r
+ CAS_STR_SERVICE_UNAVAILABLE\r
+ => 'El servicio `<b>%s</b>\' no está disponible (<b>%s</b>).'\r
+);\r
+\r
+?>\r
diff --git a/CASLogin.php b/CASLogin.php
new file mode 100644 (file)
index 0000000..69c8524
--- /dev/null
@@ -0,0 +1,42 @@
+<?php
+/**
+ * Piwik - Open source web analytics
+ * 
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html Gpl v3 or later
+ * @version $Id: ExamplePlugin.php 838 2008-12-17 17:26:15Z matt $
+ * 
+ * @package Piwik_CASLogin
+ */
+
+require PIWIK_INCLUDE_PATH . '/plugins/CASLogin/Auth.php';
+
+class Piwik_CASLogin extends Piwik_Plugin
+{
+       public function getInformation()
+       {
+               return array(
+                       'name' => 'CAS Login',
+                       'description' => 'CAS Login plugin. It uses JA-SIG Central Authentication Services to authenticate users and grant them access to piwik.',
+                       'author' => 'OW',
+                        'homepage' => 'http://dev.piwik.org/trac/ticket/598/',
+                        'version' => '0.6',
+               );
+       }
+
+       function getListHooksRegistered()
+       {
+               $hooks = array(
+                       'FrontController.initAuthenticationObject'      => 'initAuthenticationObject',
+                       );
+               return $hooks;
+       }
+
+       function initAuthenticationObject($notification)
+       {
+        set_include_path(get_include_path() . PATH_SEPARATOR . PIWIK_INCLUDE_PATH . '/plugins/CASLogin/CAS');
+        require_once('CAS/CAS.php');
+               $auth = new Piwik_CASLogin_Auth();
+               Zend_Registry::set('auth', $auth);
+       }
+}
diff --git a/CHANGELOG b/CHANGELOG
new file mode 100644 (file)
index 0000000..0660e77
--- /dev/null
+++ b/CHANGELOG
@@ -0,0 +1,31 @@
+== Changelog ==
+0.6.3
+ * Bugfix: Added $this->setBasicVariablesView($view) to Controller.php to fix missing variables issue 
+   after upgrading to Piwik 1.6
+
+0.6:
+ * Security : Upgraded bundled phpCAS to version 1.1.3. See CVE-2010-3690, CVE-2010-3691, CVE-2010-3692
+ * Work with Piwik 1.1.1 (Fixed bug with enableFramedlogins)
+
+0.5:
+ * Bugfix: Rename Piwik:prefixTable() to Piwik_Common:prefixTable()
+
+0.4:
+ * Security: Upgraded bundled phpCAS to version 1.1.2. See CVE-2010-2795, CVE-2010-2796.
+ * Works with Piwik 0.8.
+
+0.3:
+ * Enabled single signout feature
+ * Upgraded to phpCAS library 1.1.0RC8
+ * Slightly modified phpCAS so as not to emit any PHP 5.3 warnings / deprecated messages.
+ * Compatible with Piwik 0.6.x.
+ * Allows use of CoreUpdater without signing in via CAS. (Fixed bug with endless loop redirects).
+
+
+0.2: Fixes and slight improvements
+ * Added the config option "additional root logins"
+ * Bugfix in login template
+ * Cleanups
+ * Coding style fixes
+
+0.1: Initial release
diff --git a/Controller.php b/Controller.php
new file mode 100644 (file)
index 0000000..4a8db55
--- /dev/null
@@ -0,0 +1,93 @@
+<?php
+/**
+ * Piwik - Open source web analytics
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html Gpl v3 or later
+ * @version $Id: Controller.php 943 2009-03-01 23:36:36Z matt $
+ *
+ * @package Piwik_CASLogin
+ */
+
+require PIWIK_INCLUDE_PATH . '/plugins/UsersManager/API.php';
+require PIWIK_INCLUDE_PATH . '/core/View.php';
+
+/**
+ * @package Piwik_CASLogin
+ */
+class Piwik_CASLogin_Controller extends Piwik_Controller
+{
+       public function index()
+       {
+               Piwik::redirectToModule('CoreHome');
+       }
+       
+       /**
+        * Configure common view properties
+        *
+        * @param Piwik_View $view
+        */
+       private function configureView($view)
+       {
+               
+                $this->setBasicVariablesView($view);
+                $view->linkTitle = Piwik::getRandomTitle();
+
+               $enableFramedLogins = Zend_Registry::get('config')->General->enable_framed_logins;
+               $view->enableFramedLogins = $enableFramedLogins;
+               if(!$enableFramedLogins)
+               {
+                       $view->setXFrameOptions('sameorigin');
+               }
+               $view->forceSslLogin = Zend_Registry::get('config')->General->force_ssl_login;
+               // crsf token: don't trust the submitted value; generate/fetch it from session data
+               $view->nonce = Piwik_Nonce::getNonce('Piwik_Login.login');
+       }
+    
+       /**
+        * Login form
+        *
+        * @param string $messageNoAccess Access error message
+        * @param string $currentUrl Current URL
+        * @return void
+        */
+       function login($messageNoAccess = null)
+       {
+               $view = Piwik_View::factory('login');
+               $view->AccessErrorString = $messageNoAccess;
+               $view->linkTitle = Piwik::getRandomTitle();
+               $view->subTemplate = 'genericForm.tpl';
+               $this->configureView($view);
+               echo $view->render();
+       }
+    
+    public function redirectToCAS() {
+               // This is simply if we are coming back from CAS.
+        // the actual redirect happens in the authentication class.
+        if(Piwik::getCurrentUserLogin() != 'anonymous') {
+            Piwik::redirectToModule('CoreHome');
+        }
+    }
+
+       private function clearSession()
+       {       
+               /* Note: some browsers don't respect server revokation */
+               $auth = Zend_Registry::get('auth');
+               $auth->setLogin(null);
+               $auth->setTokenAuth(null);
+
+               $access = Zend_Registry::get('access');
+               $access->reloadAccess($auth);
+
+        $authCookieName = Zend_Registry::get('config')->General->login_cookie_name;
+        $cookie = new Piwik_Cookie($authCookieName);
+        $cookie->delete();
+
+               @Zend_Session::destroy(true);
+       }
+       
+       public function logout()
+       {
+        phpCAS::logoutWithUrl(Piwik_Url::getCurrentUrlWithoutQueryString() );
+       }
+}
diff --git a/README b/README
new file mode 100644 (file)
index 0000000..0479817
--- /dev/null
+++ b/README
@@ -0,0 +1,94 @@
+== Introduction ==
+
+This plugin allows users to login to piwik using a CAS central login service.
+
+
+== User Provisioning Rationale ==
+
+CASLogin currently authenticates users against the CAS service, but then
+authorizes them to piwik according to the user configuration tables inside
+piwik itself.
+
+To make this work, first you need to make sure that the user that logs in
+also exists in piwik user tables and has some rights to view or edit sites.
+
+The superuser login value in piwik itself should also correspond to a proper
+user in CAS.
+
+So a way to make this work in *new* piwik installations is:
+
+ * In main piwik configuration, set the "login" in [superuser] section to
+   correspond to an actual CAS user.
+ * Enable the CASLogin plugin (see "Installation" below).
+ * Log in as the superuser. Go to Settings -> Users. Add a username (just
+   the actual username is needed, other data can be left empty). And for that
+   username, add some rights.
+
+A further authorization and auto-provisioning mechanism can be written based
+on specific SAML attributes or any other data. See "Further Customization,
+Hacking" below.
+
+
+== Installation ==
+
+ * Disable the "Login" plugin in administration panel.
+ * Enable the "CASLogin" plugin.
+ * In your main config/config.ini.php piwik configuration file, add a section that reads like this:
+
+{{{
+[caslogin]
+protocol = SAML_VERSION_1_1
+host = login.example.org
+port = 443
+}}}
+
+Option "protocol" is one of CAS_VERSION_1_0, CAS_VERSION_2_0 or SAML_VERSION_1_1 .
+
+
+== Additional Options ==
+
+By default, only the user defined in piwik configuration (config/config.ini.php) in
+the [superuser] section is regarded as a superuser / root administrator.
+
+However, with the CAS Login scheme, you might need to add additional accounts as
+superusers, each one of them logging in as normal with their own password.
+
+If you'd like to do that, add these accounts in section [caslogin] as follows:
+
+{{{
+additionalsuperusers[] = uid1
+additionalsuperusers[] = uid2
+}}}
+
+
+== Further Customization, Hacking ==
+
+If you want to grab some additional attributes, e.g. SAML, from your login
+server, then you can edit the file Auth.php. Search for "Additional
+Attributes", that's where they can be added to the session and made available
+to piwik.
+
+If you want a user to be added automatically to the piwik users database, edit
+Auth.php and search for "User Autocreate". This is the place where you can
+enable adding to the database and probably add some default ACLs later,
+depending on specific SAML attributes or anything else you use in your CAS
+solution. The superuser can add rights by hand, or you can choose to add
+them at this step using the piwik API.
+
+
+== TODO ==
+
+ * Credit the authors of the plugins CASLogin was based on
+ * Remove some duplicate functions
+ * Allow more configurable provisioning
+ * Make default login page somewhat more elegant
+
+
+== Author ==
+
+Alexandros Vellis
+National & Kapodistrian University of Athens
+Network Operations Centre
+avel at noc.uoa.gr
+http://www.noc.uoa.gr
+http://email.uoa.gr
diff --git a/templates/header.tpl b/templates/header.tpl
new file mode 100644 (file)
index 0000000..1a8a499
--- /dev/null
@@ -0,0 +1,33 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" dir="ltr">
+<head>
+       <title>Piwik &rsaquo; Login</title>
+       <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+       <link rel="shortcut icon" href="plugins/CoreHome/templates/images/favicon.ico" />
+
+       <link rel="stylesheet" type="text/css" href="plugins/CASLogin/templates/login.css" media="screen" />
+       {postEvent name="template_css_import"}
+       
+       {literal}
+       <script type="text/javascript">
+               function focusit() {
+                       var formLogin = document.getElementById('form_login');
+                       if(formLogin)
+                       {
+                               formLogin.focus();
+                       }
+               }
+               window.onload = focusit;
+       </script>
+       {/literal}
+       <script type="text/javascript" src="libs/jquery/jquery.js"></script>
+       {postEvent name="template_js_import"}
+</head>
+
+<body class="login">
+<!-- shamelessly taken from wordpress 2.5 - thank you guys!!! -->
+
+<div id="logo">
+       <a href="http://piwik.org" title="{$linkTitle}"><span class="h1"><span style="color: rgb(245, 223, 114);">P</span><span style="color: rgb(241, 175, 108);">i</span><span style="color: rgb(241, 117, 117);">w</span><span style="color: rgb(155, 106, 58);">i</span><span style="color: rgb(107, 50, 11);">k</span> <span class="description"># {'General_OpenSourceWebAnalytics'|translate}</span></span></a>
+</div>
diff --git a/templates/login.css b/templates/login.css
new file mode 100644 (file)
index 0000000..8d48b91
--- /dev/null
@@ -0,0 +1,125 @@
+/* shamelessly taken from wordpress 2.5 - thank you guys!!! */
+* {
+       margin: 0;
+       padding: 0;
+}
+
+body {
+       font: 12px "Lucida Grande", "Lucida Sans Unicode", Tahoma, Verdana,
+               sans-serif;
+}
+
+#loginbox {
+       margin-left: 8px;
+       padding: 16px 16px 40px 16px;
+       font-weight: bold;
+       -moz-border-radius: 5px;
+       -khtml-border-radius: 5px;
+       -webkit-border-radius: 5px;
+       border-radius: 5px;
+}
+
+#loginlink {
+       font-family: "Lucida Grande", "Lucida Sans Unicode", Tahoma, Verdana,
+               sans-serif;
+       padding: 3px 5px;
+       border: none;
+       border-width: 1px;
+       border-style: solid;
+       -moz-border-radius: 3px;
+       -khtml-border-radius: 3px;
+       -webkit-border-radius: 3px;
+       border-radius: 3px;
+       cursor: default;
+       text-decoration: none;
+       margin-top: -6px;
+    font-size: 1.8em;
+    font-weight: bold;
+}
+
+.updated,.login #login_error,.login .message {
+       background-color: #ffffe0;
+       border-color: #e6db55;
+}
+
+#login {
+       width: 292px;
+       margin: 7em auto;
+       margin-top: 20px;
+}
+
+#login_error,.message {
+       margin: 0 0 16px 8px;
+       border-width: 1px;
+       border-style: solid;
+       padding: 12px;
+}
+
+#nav {
+       margin: 0 0 0 8px;
+       padding: 16px;
+}
+
+#loginbox {
+       background-color: #eaf3fa;
+}
+
+#login #login_error {
+       background-color: #ffebe8;
+       border-color: #c00;
+}
+
+#login form .submit input {
+       background-color: #e5e5e5;
+       color: #246;
+       border-color: #80b5d0;
+}
+
+#login form .submit input:hover {
+       color: #d54e21;
+}
+
+#login form .submit input:hover {
+       border-color: #328ab2;
+}
+
+.login #login_error {
+       background-color: #ffffe0;
+       border-color: #e6db55;
+}
+
+.login #nav a {
+       color: #777;
+}
+
+body.login {
+       border-top-color: #464646;
+}
+
+#login form input {
+       color: #555;
+}
+
+a {
+       text-decoration: none;
+}
+
+#logo {
+       margin-left: 38%;
+       margin-top: 100px;
+}
+
+#logo .h1 {
+       font-family: Georgia, "Times New Roman", Times, serif;
+       font-weight: normal;
+       color: #136F8B;
+       font-size: 45pt;
+       text-transform: none;
+}
+
+#logo .description {
+       font-family: Georgia, "Times New Roman", Times, serif;
+       font-weight: normal;
+       color: #879dbd;
+       font-size: 19pt;
+}
diff --git a/templates/login.tpl b/templates/login.tpl
new file mode 100644 (file)
index 0000000..3fe269a
--- /dev/null
@@ -0,0 +1,18 @@
+{include file="Login/templates/header.tpl"}
+
+<div id="login">
+
+{if $AccessErrorString}
+<div id="login_error"><strong>{'General_Error'|translate}</strong>: {$AccessErrorString}<br /></div>
+{/if}
+
+<div id="loginbox">
+    <div id="loginlink">
+               <a href="index.php?module=CASLogin&amp;action=redirectToCAS">{'Login_LogIn'|translate}</a>
+    </div>
+</div>
+
+</div>
+
+</body>
+</html>