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gnu-social/vendor/apereo/phpcas/source/CAS.php

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[CORE][COMPOSER] Move plugins extlibs to composer (where appropriate)
2019-06-22 22:23:21 +01:00
<?php
/**
* Licensed to Jasig under one or more contributor license
* agreements. See the NOTICE file distributed with this work for
* additional information regarding copyright ownership.
*
* Jasig licenses this file to you under the Apache License,
* Version 2.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*
*
* Interface class of the phpCAS library
* PHP Version 5
*
* @file CAS/CAS.php
* @category Authentication
* @package PhpCAS
* @author Pascal Aubry <pascal.aubry@univ-rennes1.fr>
* @author Olivier Berger <olivier.berger@it-sudparis.eu>
* @author Brett Bieber <brett.bieber@gmail.com>
* @author Joachim Fritschi <jfritschi@freenet.de>
* @author Adam Franco <afranco@middlebury.edu>
* @license http://www.apache.org/licenses/LICENSE-2.0 Apache License 2.0
* @link https://wiki.jasig.org/display/CASC/phpCAS
* @ingroup public
*/
//
// hack by Vangelis Haniotakis to handle the absence of $_SERVER['REQUEST_URI']
// in IIS
//
if (!isset($_SERVER['REQUEST_URI']) && isset($_SERVER['SCRIPT_NAME']) && isset($_SERVER['QUERY_STRING'])) {
$_SERVER['REQUEST_URI'] = $_SERVER['SCRIPT_NAME'] . '?' . $_SERVER['QUERY_STRING'];
}
// Add a E_USER_DEPRECATED for php versions <= 5.2
if (!defined('E_USER_DEPRECATED')) {
define('E_USER_DEPRECATED', E_USER_NOTICE);
}
// ########################################################################
// CONSTANTS
// ########################################################################
// ------------------------------------------------------------------------
// CAS VERSIONS
// ------------------------------------------------------------------------
/**
* phpCAS version. accessible for the user by phpCAS::getVersion().
*/
define('PHPCAS_VERSION', '1.3.7');
/**
* @addtogroup public
* @{
*/
/**
* phpCAS supported protocols. accessible for the user by phpCAS::getSupportedProtocols().
*/
/**
* CAS version 1.0
*/
define("CAS_VERSION_1_0", '1.0');
/*!
* CAS version 2.0
*/
define("CAS_VERSION_2_0", '2.0');
/**
* CAS version 3.0
*/
define("CAS_VERSION_3_0", '3.0');
// ------------------------------------------------------------------------
// SAML defines
// ------------------------------------------------------------------------
/**
* SAML protocol
*/
define("SAML_VERSION_1_1", 'S1');
/**
* XML header for SAML POST
*/
define("SAML_XML_HEADER", '<?xml version="1.0" encoding="UTF-8"?>');
/**
* SOAP envelope for SAML POST
*/
define("SAML_SOAP_ENV", '<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"><SOAP-ENV:Header/>');
/**
* SOAP body for SAML POST
*/
define("SAML_SOAP_BODY", '<SOAP-ENV:Body>');
/**
* SAMLP request
*/
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">');
define("SAMLP_REQUEST_CLOSE", '</samlp:Request>');
/**
* SAMLP artifact tag (for the ticket)
*/
define("SAML_ASSERTION_ARTIFACT", '<samlp:AssertionArtifact>');
/**
* SAMLP close
*/
define("SAML_ASSERTION_ARTIFACT_CLOSE", '</samlp:AssertionArtifact>');
/**
* SOAP body close
*/
define("SAML_SOAP_BODY_CLOSE", '</SOAP-ENV:Body>');
/**
* SOAP envelope close
*/
define("SAML_SOAP_ENV_CLOSE", '</SOAP-ENV:Envelope>');
/**
* SAML Attributes
*/
define("SAML_ATTRIBUTES", 'SAMLATTRIBS');
/**
* SAML Attributes
*/
define("DEFAULT_ERROR", 'Internal script failure');
/** @} */
/**
* @addtogroup publicPGTStorage
* @{
*/
// ------------------------------------------------------------------------
// FILE PGT STORAGE
// ------------------------------------------------------------------------
/**
* Default path used when storing PGT's to file
*/
define("CAS_PGT_STORAGE_FILE_DEFAULT_PATH", session_save_path());
/** @} */
// ------------------------------------------------------------------------
// SERVICE ACCESS ERRORS
// ------------------------------------------------------------------------
/**
* @addtogroup publicServices
* @{
*/
/**
* phpCAS::service() error code on success
*/
define("PHPCAS_SERVICE_OK", 0);
/**
* phpCAS::service() error code when the PT could not retrieve because
* the CAS server did not respond.
*/
define("PHPCAS_SERVICE_PT_NO_SERVER_RESPONSE", 1);
/**
* phpCAS::service() error code when the PT could not retrieve because
* the response of the CAS server was ill-formed.
*/
define("PHPCAS_SERVICE_PT_BAD_SERVER_RESPONSE", 2);
/**
* phpCAS::service() error code when the PT could not retrieve because
* the CAS server did not want to.
*/
define("PHPCAS_SERVICE_PT_FAILURE", 3);
/**
* phpCAS::service() error code when the service was not available.
*/
define("PHPCAS_SERVICE_NOT_AVAILABLE", 4);
// ------------------------------------------------------------------------
// SERVICE TYPES
// ------------------------------------------------------------------------
/**
* phpCAS::getProxiedService() type for HTTP GET
*/
define("PHPCAS_PROXIED_SERVICE_HTTP_GET", 'CAS_ProxiedService_Http_Get');
/**
* phpCAS::getProxiedService() type for HTTP POST
*/
define("PHPCAS_PROXIED_SERVICE_HTTP_POST", 'CAS_ProxiedService_Http_Post');
/**
* phpCAS::getProxiedService() type for IMAP
*/
define("PHPCAS_PROXIED_SERVICE_IMAP", 'CAS_ProxiedService_Imap');
/** @} */
// ------------------------------------------------------------------------
// LANGUAGES
// ------------------------------------------------------------------------
/**
* @addtogroup publicLang
* @{
*/
define("PHPCAS_LANG_ENGLISH", 'CAS_Languages_English');
define("PHPCAS_LANG_FRENCH", 'CAS_Languages_French');
define("PHPCAS_LANG_GREEK", 'CAS_Languages_Greek');
define("PHPCAS_LANG_GERMAN", 'CAS_Languages_German');
define("PHPCAS_LANG_JAPANESE", 'CAS_Languages_Japanese');
define("PHPCAS_LANG_SPANISH", 'CAS_Languages_Spanish');
define("PHPCAS_LANG_CATALAN", 'CAS_Languages_Catalan');
define("PHPCAS_LANG_CHINESE_SIMPLIFIED", 'CAS_Languages_ChineseSimplified');
/** @} */
/**
* @addtogroup internalLang
* @{
*/
/**
* phpCAS default language (when phpCAS::setLang() is not used)
*/
define("PHPCAS_LANG_DEFAULT", PHPCAS_LANG_ENGLISH);
/** @} */
// ------------------------------------------------------------------------
// DEBUG
// ------------------------------------------------------------------------
/**
* @addtogroup publicDebug
* @{
*/
/**
* The default directory for the debug file under Unix.
* @return string directory for the debug file
*/
function gettmpdir() {
if (!empty($_ENV['TMP'])) { return realpath($_ENV['TMP']); }
if (!empty($_ENV['TMPDIR'])) { return realpath( $_ENV['TMPDIR']); }
if (!empty($_ENV['TEMP'])) { return realpath( $_ENV['TEMP']); }
return "/tmp";
}
define('DEFAULT_DEBUG_DIR', gettmpdir()."/");
/** @} */
// include the class autoloader
require_once dirname(__FILE__) . '/CAS/Autoload.php';
/**
* The phpCAS class is a simple container for the phpCAS library. It provides CAS
* authentication for web applications written in PHP.
*
* @ingroup public
* @class phpCAS
* @category Authentication
* @package PhpCAS
* @author Pascal Aubry <pascal.aubry@univ-rennes1.fr>
* @author Olivier Berger <olivier.berger@it-sudparis.eu>
* @author Brett Bieber <brett.bieber@gmail.com>
* @author Joachim Fritschi <jfritschi@freenet.de>
* @author Adam Franco <afranco@middlebury.edu>
* @license http://www.apache.org/licenses/LICENSE-2.0 Apache License 2.0
* @link https://wiki.jasig.org/display/CASC/phpCAS
*/
class phpCAS
{
/**
* This variable is used by the interface class phpCAS.
*
* @var CAS_Client
* @hideinitializer
*/
private static $_PHPCAS_CLIENT;
/**
* @var array
* This variable is used to store where the initializer is called from
* (to print a comprehensive error in case of multiple calls).
*
* @hideinitializer
*/
private static $_PHPCAS_INIT_CALL;
/**
* @var array
* This variable is used to store phpCAS debug mode.
*
* @hideinitializer
*/
private static $_PHPCAS_DEBUG;
/**
* This variable is used to enable verbose mode
* This pevents debug info to be show to the user. Since it's a security
* feature the default is false
*
* @hideinitializer
*/
private static $_PHPCAS_VERBOSE = false;
// ########################################################################
// INITIALIZATION
// ########################################################################
/**
* @addtogroup publicInit
* @{
*/
/**
* phpCAS client initializer.
*
* @param string $server_version the version of the CAS server
* @param string $server_hostname the hostname of the CAS server
* @param int $server_port the port the CAS server is running on
* @param string $server_uri the URI the CAS server is responding on
* @param bool $changeSessionID Allow phpCAS to change the session_id (Single
* Sign Out/handleLogoutRequests is based on that change)
*
* @return void a newly created CAS_Client object
* @note Only one of the phpCAS::client() and phpCAS::proxy functions should be
* called, only once, and before all other methods (except phpCAS::getVersion()
* and phpCAS::setDebug()).
*/
public static function client($server_version, $server_hostname,
$server_port, $server_uri, $changeSessionID = true
) {
phpCAS :: traceBegin();
if (is_object(self::$_PHPCAS_CLIENT)) {
phpCAS :: error(self::$_PHPCAS_INIT_CALL['method'] . '() has already been called (at ' . self::$_PHPCAS_INIT_CALL['file'] . ':' . self::$_PHPCAS_INIT_CALL['line'] . ')');
}
// store where the initializer is called from
$dbg = debug_backtrace();
self::$_PHPCAS_INIT_CALL = array (
'done' => true,
'file' => $dbg[0]['file'],
'line' => $dbg[0]['line'],
'method' => __CLASS__ . '::' . __FUNCTION__
);
// initialize the object $_PHPCAS_CLIENT
try {
self::$_PHPCAS_CLIENT = new CAS_Client(
$server_version, false, $server_hostname, $server_port, $server_uri,
$changeSessionID
);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
phpCAS :: traceEnd();
}
/**
* phpCAS proxy initializer.
*
* @param string $server_version the version of the CAS server
* @param string $server_hostname the hostname of the CAS server
* @param int $server_port the port the CAS server is running on
* @param string $server_uri the URI the CAS server is responding on
* @param bool $changeSessionID Allow phpCAS to change the session_id (Single
* Sign Out/handleLogoutRequests is based on that change)
*
* @return void a newly created CAS_Client object
* @note Only one of the phpCAS::client() and phpCAS::proxy functions should be
* called, only once, and before all other methods (except phpCAS::getVersion()
* and phpCAS::setDebug()).
*/
public static function proxy($server_version, $server_hostname,
$server_port, $server_uri, $changeSessionID = true
) {
phpCAS :: traceBegin();
if (is_object(self::$_PHPCAS_CLIENT)) {
phpCAS :: error(self::$_PHPCAS_INIT_CALL['method'] . '() has already been called (at ' . self::$_PHPCAS_INIT_CALL['file'] . ':' . self::$_PHPCAS_INIT_CALL['line'] . ')');
}
// store where the initialzer is called from
$dbg = debug_backtrace();
self::$_PHPCAS_INIT_CALL = array (
'done' => true,
'file' => $dbg[0]['file'],
'line' => $dbg[0]['line'],
'method' => __CLASS__ . '::' . __FUNCTION__
);
// initialize the object $_PHPCAS_CLIENT
try {
self::$_PHPCAS_CLIENT = new CAS_Client(
$server_version, true, $server_hostname, $server_port, $server_uri,
$changeSessionID
);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
phpCAS :: traceEnd();
}
/**
* Answer whether or not the client or proxy has been initialized
*
* @return bool
*/
public static function isInitialized ()
{
return (is_object(self::$_PHPCAS_CLIENT));
}
/** @} */
// ########################################################################
// DEBUGGING
// ########################################################################
/**
* @addtogroup publicDebug
* @{
*/
/**
* Set/unset debug mode
*
* @param string $filename the name of the file used for logging, or false
* to stop debugging.
*
* @return void
*/
public static function setDebug($filename = '')
{
if ($filename != false && gettype($filename) != 'string') {
phpCAS :: error('type mismatched for parameter $dbg (should be false or the name of the log file)');
}
if ($filename === false) {
self::$_PHPCAS_DEBUG['filename'] = false;
} else {
if (empty ($filename)) {
if (preg_match('/^Win.*/', getenv('OS'))) {
if (isset ($_ENV['TMP'])) {
$debugDir = $_ENV['TMP'] . '/';
} else {
$debugDir = '';
}
} else {
$debugDir = DEFAULT_DEBUG_DIR;
}
$filename = $debugDir . 'phpCAS.log';
}
if (empty (self::$_PHPCAS_DEBUG['unique_id'])) {
self::$_PHPCAS_DEBUG['unique_id'] = substr(strtoupper(md5(uniqid(''))), 0, 4);
}
self::$_PHPCAS_DEBUG['filename'] = $filename;
self::$_PHPCAS_DEBUG['indent'] = 0;
phpCAS :: trace('START ('.date("Y-m-d H:i:s").') phpCAS-' . PHPCAS_VERSION . ' ******************');
}
}
/**
* Enable verbose errors messages in the website output
* This is a security relevant since internal status info may leak an may
* help an attacker. Default is therefore false
*
* @param bool $verbose enable verbose output
*
* @return void
*/
public static function setVerbose($verbose)
{
if ($verbose === true) {
self::$_PHPCAS_VERBOSE = true;
} else {
self::$_PHPCAS_VERBOSE = false;
}
}
/**
* Show is verbose mode is on
*
* @return bool verbose
*/
public static function getVerbose()
{
return self::$_PHPCAS_VERBOSE;
}
/**
* Logs a string in debug mode.
*
* @param string $str the string to write
*
* @return void
* @private
*/
public static function log($str)
{
$indent_str = ".";
if (!empty(self::$_PHPCAS_DEBUG['filename'])) {
// Check if file exists and modifiy file permissions to be only
// readable by the webserver
if (!file_exists(self::$_PHPCAS_DEBUG['filename'])) {
touch(self::$_PHPCAS_DEBUG['filename']);
// Chmod will fail on windows
@chmod(self::$_PHPCAS_DEBUG['filename'], 0600);
}
for ($i = 0; $i < self::$_PHPCAS_DEBUG['indent']; $i++) {
$indent_str .= '| ';
}
// allow for multiline output with proper identing. Usefull for
// dumping cas answers etc.
$str2 = str_replace("\n", "\n" . self::$_PHPCAS_DEBUG['unique_id'] . ' ' . $indent_str, $str);
error_log(self::$_PHPCAS_DEBUG['unique_id'] . ' ' . $indent_str . $str2 . "\n", 3, self::$_PHPCAS_DEBUG['filename']);
}
}
/**
* This method is used by interface methods to print an error and where the
* function was originally called from.
*
* @param string $msg the message to print
*
* @return void
* @private
*/
public static function error($msg)
{
phpCAS :: traceBegin();
$dbg = debug_backtrace();
$function = '?';
$file = '?';
$line = '?';
if (is_array($dbg)) {
for ($i = 1; $i < sizeof($dbg); $i++) {
if (is_array($dbg[$i]) && isset($dbg[$i]['class']) ) {
if ($dbg[$i]['class'] == __CLASS__) {
$function = $dbg[$i]['function'];
$file = $dbg[$i]['file'];
$line = $dbg[$i]['line'];
}
}
}
}
if (self::$_PHPCAS_VERBOSE) {
echo "<br />\n<b>phpCAS error</b>: <font color=\"FF0000\"><b>" . __CLASS__ . "::" . $function . '(): ' . htmlentities($msg) . "</b></font> in <b>" . $file . "</b> on line <b>" . $line . "</b><br />\n";
} else {
echo "<br />\n<b>Error</b>: <font color=\"FF0000\"><b>". DEFAULT_ERROR ."</b><br />\n";
}
phpCAS :: trace($msg . ' in ' . $file . 'on line ' . $line );
phpCAS :: traceEnd();
throw new CAS_GracefullTerminationException(__CLASS__ . "::" . $function . '(): ' . $msg);
}
/**
* This method is used to log something in debug mode.
*
* @param string $str string to log
*
* @return void
*/
public static function trace($str)
{
$dbg = debug_backtrace();
phpCAS :: log($str . ' [' . basename($dbg[0]['file']) . ':' . $dbg[0]['line'] . ']');
}
/**
* This method is used to indicate the start of the execution of a function
* in debug mode.
*
* @return void
*/
public static function traceBegin()
{
$dbg = debug_backtrace();
$str = '=> ';
if (!empty ($dbg[1]['class'])) {
$str .= $dbg[1]['class'] . '::';
}
$str .= $dbg[1]['function'] . '(';
if (is_array($dbg[1]['args'])) {
foreach ($dbg[1]['args'] as $index => $arg) {
if ($index != 0) {
$str .= ', ';
}
if (is_object($arg)) {
$str .= get_class($arg);
} else {
$str .= str_replace(array("\r\n", "\n", "\r"), "", var_export($arg, true));
}
}
}
if (isset($dbg[1]['file'])) {
$file = basename($dbg[1]['file']);
} else {
$file = 'unknown_file';
}
if (isset($dbg[1]['line'])) {
$line = $dbg[1]['line'];
} else {
$line = 'unknown_line';
}
$str .= ') [' . $file . ':' . $line . ']';
phpCAS :: log($str);
if (!isset(self::$_PHPCAS_DEBUG['indent'])) {
self::$_PHPCAS_DEBUG['indent'] = 0;
} else {
self::$_PHPCAS_DEBUG['indent']++;
}
}
/**
* This method is used to indicate the end of the execution of a function in
* debug mode.
*
* @param mixed $res the result of the function
*
* @return void
*/
public static function traceEnd($res = '')
{
if (empty(self::$_PHPCAS_DEBUG['indent'])) {
self::$_PHPCAS_DEBUG['indent'] = 0;
} else {
self::$_PHPCAS_DEBUG['indent']--;
}
$str = '';
if (is_object($res)) {
$str .= '<= ' . get_class($res);
} else {
$str .= '<= ' . str_replace(array("\r\n", "\n", "\r"), "", var_export($res, true));
}
phpCAS :: log($str);
}
/**
* This method is used to indicate the end of the execution of the program
*
* @return void
*/
public static function traceExit()
{
phpCAS :: log('exit()');
while (self::$_PHPCAS_DEBUG['indent'] > 0) {
phpCAS :: log('-');
self::$_PHPCAS_DEBUG['indent']--;
}
}
/** @} */
// ########################################################################
// INTERNATIONALIZATION
// ########################################################################
/**
* @addtogroup publicLang
* @{
*/
/**
* This method is used to set the language used by phpCAS.
*
* @param string $lang string representing the language.
*
* @return void
*
* @sa PHPCAS_LANG_FRENCH, PHPCAS_LANG_ENGLISH
* @note Can be called only once.
*/
public static function setLang($lang)
{
phpCAS::_validateClientExists();
try {
self::$_PHPCAS_CLIENT->setLang($lang);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
}
/** @} */
// ########################################################################
// VERSION
// ########################################################################
/**
* @addtogroup public
* @{
*/
/**
* This method returns the phpCAS version.
*
* @return string the phpCAS version.
*/
public static function getVersion()
{
return PHPCAS_VERSION;
}
/**
* This method returns supported protocols.
*
* @return array an array of all supported protocols. Use internal protocol name as array key.
*/
public static function getSupportedProtocols()
{
$supportedProtocols = array();
$supportedProtocols[CAS_VERSION_1_0] = 'CAS 1.0';
$supportedProtocols[CAS_VERSION_2_0] = 'CAS 2.0';
$supportedProtocols[CAS_VERSION_3_0] = 'CAS 3.0';
$supportedProtocols[SAML_VERSION_1_1] = 'SAML 1.1';
return $supportedProtocols;
}
/** @} */
// ########################################################################
// HTML OUTPUT
// ########################################################################
/**
* @addtogroup publicOutput
* @{
*/
/**
* This method sets the HTML header used for all outputs.
*
* @param string $header the HTML header.
*
* @return void
*/
public static function setHTMLHeader($header)
{
phpCAS::_validateClientExists();
try {
self::$_PHPCAS_CLIENT->setHTMLHeader($header);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
}
/**
* This method sets the HTML footer used for all outputs.
*
* @param string $footer the HTML footer.
*
* @return void
*/
public static function setHTMLFooter($footer)
{
phpCAS::_validateClientExists();
try {
self::$_PHPCAS_CLIENT->setHTMLFooter($footer);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
}
/** @} */
// ########################################################################
// PGT STORAGE
// ########################################################################
/**
* @addtogroup publicPGTStorage
* @{
*/
/**
* This method can be used to set a custom PGT storage object.
*
* @param CAS_PGTStorage_AbstractStorage $storage a PGT storage object that inherits from the
* CAS_PGTStorage_AbstractStorage class
*
* @return void
*/
public static function setPGTStorage($storage)
{
phpCAS :: traceBegin();
phpCAS::_validateProxyExists();
try {
self::$_PHPCAS_CLIENT->setPGTStorage($storage);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
phpCAS :: traceEnd();
}
/**
* This method is used to tell phpCAS to store the response of the
* CAS server to PGT requests in a database.
*
* @param string $dsn_or_pdo a dsn string to use for creating a PDO
* object or a PDO object
* @param string $username the username to use when connecting to the
* database
* @param string $password the password to use when connecting to the
* database
* @param string $table the table to use for storing and retrieving
* PGT's
* @param string $driver_options any driver options to use when connecting
* to the database
*
* @return void
*/
public static function setPGTStorageDb($dsn_or_pdo, $username='',
$password='', $table='', $driver_options=null
) {
phpCAS :: traceBegin();
phpCAS::_validateProxyExists();
try {
self::$_PHPCAS_CLIENT->setPGTStorageDb($dsn_or_pdo, $username, $password, $table, $driver_options);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
phpCAS :: traceEnd();
}
/**
* This method is used to tell phpCAS to store the response of the
* CAS server to PGT requests onto the filesystem.
*
* @param string $path the path where the PGT's should be stored
*
* @return void
*/
public static function setPGTStorageFile($path = '')
{
phpCAS :: traceBegin();
phpCAS::_validateProxyExists();
try {
self::$_PHPCAS_CLIENT->setPGTStorageFile($path);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
phpCAS :: traceEnd();
}
/** @} */
// ########################################################################
// ACCESS TO EXTERNAL SERVICES
// ########################################################################
/**
* @addtogroup publicServices
* @{
*/
/**
* Answer a proxy-authenticated service handler.
*
* @param string $type The service type. One of
* PHPCAS_PROXIED_SERVICE_HTTP_GET; PHPCAS_PROXIED_SERVICE_HTTP_POST;
* PHPCAS_PROXIED_SERVICE_IMAP
*
* @return CAS_ProxiedService
* @throws InvalidArgumentException If the service type is unknown.
*/
public static function getProxiedService ($type)
{
phpCAS :: traceBegin();
phpCAS::_validateProxyExists();
try {
$res = self::$_PHPCAS_CLIENT->getProxiedService($type);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
phpCAS :: traceEnd();
return $res;
}
/**
* Initialize a proxied-service handler with the proxy-ticket it should use.
*
* @param CAS_ProxiedService $proxiedService Proxied Service Handler
*
* @return void
* @throws CAS_ProxyTicketException If there is a proxy-ticket failure.
* The code of the Exception will be one of:
* PHPCAS_SERVICE_PT_NO_SERVER_RESPONSE
* PHPCAS_SERVICE_PT_BAD_SERVER_RESPONSE
* PHPCAS_SERVICE_PT_FAILURE
*/
public static function initializeProxiedService (CAS_ProxiedService $proxiedService)
{
phpCAS::_validateProxyExists();
try {
self::$_PHPCAS_CLIENT->initializeProxiedService($proxiedService);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
}
/**
* This method is used to access an HTTP[S] service.
*
* @param string $url the service to access.
* @param int &$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 string &$output the output of the service (also used to give an
* error message on failure).
*
* @return bool true on success, false otherwise (in this later case,
* $err_code gives the reason why it failed and $output contains an error
* message).
*/
public static function serviceWeb($url, & $err_code, & $output)
{
phpCAS :: traceBegin();
phpCAS::_validateProxyExists();
try {
$res = self::$_PHPCAS_CLIENT->serviceWeb($url, $err_code, $output);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
phpCAS :: traceEnd($res);
return $res;
}
/**
* This method is used to access an IMAP/POP3/NNTP service.
*
* @param string $url a string giving the URL of the service,
* including the mailing box for IMAP URLs, as accepted by imap_open().
* @param string $service a string giving for CAS retrieve Proxy ticket
* @param string $flags options given to imap_open().
* @param int &$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 string &$err_msg an error message on failure
* @param string &$pt the Proxy Ticket (PT) retrieved from the CAS
* server to access the URL on success, false on error).
*
* @return object|false IMAP stream on success, false otherwise (in this later
* case, $err_code gives the reason why it failed and $err_msg contains an
* error message).
*/
public static function serviceMail($url, $service, $flags, & $err_code, & $err_msg, & $pt)
{
phpCAS :: traceBegin();
phpCAS::_validateProxyExists();
try {
$res = self::$_PHPCAS_CLIENT->serviceMail($url, $service, $flags, $err_code, $err_msg, $pt);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
phpCAS :: traceEnd($res);
return $res;
}
/** @} */
// ########################################################################
// AUTHENTICATION
// ########################################################################
/**
* @addtogroup publicAuth
* @{
*/
/**
* Set the times authentication will be cached before really accessing the
* CAS server in gateway mode:
* - -1: check only once, and then never again (until you pree login)
* - 0: always check
* - n: check every "n" time
*
* @param int $n an integer.
*
* @return void
*/
public static function setCacheTimesForAuthRecheck($n)
{
phpCAS::_validateClientExists();
try {
self::$_PHPCAS_CLIENT->setCacheTimesForAuthRecheck($n);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
}
/**
* Set a callback function to be run when receiving CAS attributes
*
* The callback function will be passed an $success_elements
* payload of the response (\DOMElement) as its first parameter.
*
* @param string $function Callback function
* @param array $additionalArgs optional array of arguments
*
* @return void
*/
public static function setCasAttributeParserCallback($function, array $additionalArgs = array())
{
phpCAS::_validateClientExists();
self::$_PHPCAS_CLIENT->setCasAttributeParserCallback($function, $additionalArgs);
}
/**
* Set a callback function to be run when a user authenticates.
*
* The callback function will be passed a $logoutTicket as its first
* parameter, followed by any $additionalArgs you pass. The $logoutTicket
* parameter is an opaque string that can be used to map the session-id to
* logout request in order to support single-signout in applications that
* manage their own sessions (rather than letting phpCAS start the session).
*
* phpCAS::forceAuthentication() will always exit and forward client unless
* they are already authenticated. To perform an action at the moment the user
* logs in (such as registering an account, performing logging, etc), register
* a callback function here.
*
* @param callable $function Callback function
* @param array $additionalArgs optional array of arguments
*
* @return void
*/
public static function setPostAuthenticateCallback ($function, array $additionalArgs = array())
{
phpCAS::_validateClientExists();
self::$_PHPCAS_CLIENT->setPostAuthenticateCallback($function, $additionalArgs);
}
/**
* Set a callback function to be run when a single-signout request is
* received. The callback function will be passed a $logoutTicket as its
* first parameter, followed by any $additionalArgs you pass. The
* $logoutTicket parameter is an opaque string that can be used to map a
* session-id to the logout request in order to support single-signout in
* applications that manage their own sessions (rather than letting phpCAS
* start and destroy the session).
*
* @param callable $function Callback function
* @param array $additionalArgs optional array of arguments
*
* @return void
*/
public static function setSingleSignoutCallback ($function, array $additionalArgs = array())
{
phpCAS::_validateClientExists();
self::$_PHPCAS_CLIENT->setSingleSignoutCallback($function, $additionalArgs);
}
/**
* This method is called to check if the user is already authenticated
* locally or has a global cas session. A already existing cas session is
* determined by a cas gateway call.(cas login call without any interactive
* prompt)
*
* @return bool true when the user is authenticated, false when a previous
* gateway login failed or the function will not return if the user is
* redirected to the cas server for a gateway login attempt
*/
public static function checkAuthentication()
{
phpCAS :: traceBegin();
phpCAS::_validateClientExists();
$auth = self::$_PHPCAS_CLIENT->checkAuthentication();
// store where the authentication has been checked and the result
self::$_PHPCAS_CLIENT->markAuthenticationCall($auth);
phpCAS :: traceEnd($auth);
return $auth;
}
/**
* This method is called to force authentication if the user was not already
* authenticated. If the user is not authenticated, halt by redirecting to
* the CAS server.
*
* @return bool Authentication
*/
public static function forceAuthentication()
{
phpCAS :: traceBegin();
phpCAS::_validateClientExists();
$auth = self::$_PHPCAS_CLIENT->forceAuthentication();
// store where the authentication has been checked and the result
self::$_PHPCAS_CLIENT->markAuthenticationCall($auth);
/* if (!$auth) {
phpCAS :: trace('user is not authenticated, redirecting to the CAS server');
self::$_PHPCAS_CLIENT->forceAuthentication();
} else {
phpCAS :: trace('no need to authenticate (user `' . phpCAS :: getUser() . '\' is already authenticated)');
}*/
phpCAS :: traceEnd();
return $auth;
}
/**
* This method is called to renew the authentication.
*
* @return void
**/
public static function renewAuthentication()
{
phpCAS :: traceBegin();
phpCAS::_validateClientExists();
$auth = self::$_PHPCAS_CLIENT->renewAuthentication();
// store where the authentication has been checked and the result
self::$_PHPCAS_CLIENT->markAuthenticationCall($auth);
//self::$_PHPCAS_CLIENT->renewAuthentication();
phpCAS :: traceEnd();
}
/**
* This method is called to check if the user is authenticated (previously or by
* tickets given in the URL).
*
* @return bool true when the user is authenticated.
*/
public static function isAuthenticated()
{
phpCAS :: traceBegin();
phpCAS::_validateClientExists();
// call the isAuthenticated method of the $_PHPCAS_CLIENT object
$auth = self::$_PHPCAS_CLIENT->isAuthenticated();
// store where the authentication has been checked and the result
self::$_PHPCAS_CLIENT->markAuthenticationCall($auth);
phpCAS :: traceEnd($auth);
return $auth;
}
/**
* Checks whether authenticated based on $_SESSION. Useful to avoid
* server calls.
*
* @return bool true if authenticated, false otherwise.
* @since 0.4.22 by Brendan Arnold
*/
public static function isSessionAuthenticated()
{
phpCAS::_validateClientExists();
return (self::$_PHPCAS_CLIENT->isSessionAuthenticated());
}
/**
* This method returns the CAS user's login name.
*
* @return string the login name of the authenticated user
* @warning should only be called after phpCAS::forceAuthentication()
* or phpCAS::checkAuthentication().
* */
public static function getUser()
{
phpCAS::_validateClientExists();
try {
return self::$_PHPCAS_CLIENT->getUser();
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
}
/**
* Answer attributes about the authenticated user.
*
* @warning should only be called after phpCAS::forceAuthentication()
* or phpCAS::checkAuthentication().
*
* @return array
*/
public static function getAttributes()
{
phpCAS::_validateClientExists();
try {
return self::$_PHPCAS_CLIENT->getAttributes();
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
}
/**
* Answer true if there are attributes for the authenticated user.
*
* @warning should only be called after phpCAS::forceAuthentication()
* or phpCAS::checkAuthentication().
*
* @return bool
*/
public static function hasAttributes()
{
phpCAS::_validateClientExists();
try {
return self::$_PHPCAS_CLIENT->hasAttributes();
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
}
/**
* Answer true if an attribute exists for the authenticated user.
*
* @param string $key attribute name
*
* @return bool
* @warning should only be called after phpCAS::forceAuthentication()
* or phpCAS::checkAuthentication().
*/
public static function hasAttribute($key)
{
phpCAS::_validateClientExists();
try {
return self::$_PHPCAS_CLIENT->hasAttribute($key);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
}
/**
* Answer an attribute for the authenticated user.
*
* @param string $key attribute name
*
* @return mixed string for a single value or an array if multiple values exist.
* @warning should only be called after phpCAS::forceAuthentication()
* or phpCAS::checkAuthentication().
*/
public static function getAttribute($key)
{
phpCAS::_validateClientExists();
try {
return self::$_PHPCAS_CLIENT->getAttribute($key);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
}
/**
* Handle logout requests.
*
* @param bool $check_client additional safety check
* @param array $allowed_clients array of allowed clients
*
* @return void
*/
public static function handleLogoutRequests($check_client = true, $allowed_clients = array())
{
phpCAS::_validateClientExists();
return (self::$_PHPCAS_CLIENT->handleLogoutRequests($check_client, $allowed_clients));
}
/**
* This method returns the URL to be used to login.
*
* @return string the login URL
*/
public static function getServerLoginURL()
{
phpCAS::_validateClientExists();
return self::$_PHPCAS_CLIENT->getServerLoginURL();
}
/**
* Set the login URL of the CAS server.
*
* @param string $url the login URL
*
* @return void
* @since 0.4.21 by Wyman Chan
*/
public static function setServerLoginURL($url = '')
{
phpCAS :: traceBegin();
phpCAS::_validateClientExists();
try {
self::$_PHPCAS_CLIENT->setServerLoginURL($url);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
phpCAS :: traceEnd();
}
/**
* Set the serviceValidate URL of the CAS server.
* Used for all CAS versions of URL validations.
* Examples:
* CAS 1.0 http://www.exemple.com/validate
* CAS 2.0 http://www.exemple.com/validateURL
* CAS 3.0 http://www.exemple.com/p3/serviceValidate
*
* @param string $url the serviceValidate URL
*
* @return void
*/
public static function setServerServiceValidateURL($url = '')
{
phpCAS :: traceBegin();
phpCAS::_validateClientExists();
try {
self::$_PHPCAS_CLIENT->setServerServiceValidateURL($url);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
phpCAS :: traceEnd();
}
/**
* Set the proxyValidate URL of the CAS server.
* Used for all CAS versions of proxy URL validations
* Examples:
* CAS 1.0 http://www.exemple.com/
* CAS 2.0 http://www.exemple.com/proxyValidate
* CAS 3.0 http://www.exemple.com/p3/proxyValidate
*
* @param string $url the proxyValidate URL
*
* @return void
*/
public static function setServerProxyValidateURL($url = '')
{
phpCAS :: traceBegin();
phpCAS::_validateClientExists();
try {
self::$_PHPCAS_CLIENT->setServerProxyValidateURL($url);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
phpCAS :: traceEnd();
}
/**
* Set the samlValidate URL of the CAS server.
*
* @param string $url the samlValidate URL
*
* @return void
*/
public static function setServerSamlValidateURL($url = '')
{
phpCAS :: traceBegin();
phpCAS::_validateClientExists();
try {
self::$_PHPCAS_CLIENT->setServerSamlValidateURL($url);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
phpCAS :: traceEnd();
}
/**
* This method returns the URL to be used to logout.
*
* @return string the URL to use to log out
*/
public static function getServerLogoutURL()
{
phpCAS::_validateClientExists();
return self::$_PHPCAS_CLIENT->getServerLogoutURL();
}
/**
* Set the logout URL of the CAS server.
*
* @param string $url the logout URL
*
* @return void
* @since 0.4.21 by Wyman Chan
*/
public static function setServerLogoutURL($url = '')
{
phpCAS :: traceBegin();
phpCAS::_validateClientExists();
try {
self::$_PHPCAS_CLIENT->setServerLogoutURL($url);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
phpCAS :: traceEnd();
}
/**
* This method is used to logout from CAS.
*
* @param string $params an array that contains the optional url and
* service parameters that will be passed to the CAS server
*
* @return void
*/
public static function logout($params = "")
{
phpCAS :: traceBegin();
phpCAS::_validateClientExists();
$parsedParams = array ();
if ($params != "") {
if (is_string($params)) {
phpCAS :: error('method `phpCAS::logout($url)\' is now deprecated, use `phpCAS::logoutWithUrl($url)\' instead');
}
if (!is_array($params)) {
phpCAS :: error('type mismatched for parameter $params (should be `array\')');
}
foreach ($params as $key => $value) {
if ($key != "service" && $key != "url") {
phpCAS :: error('only `url\' and `service\' parameters are allowed for method `phpCAS::logout($params)\'');
}
$parsedParams[$key] = $value;
}
}
self::$_PHPCAS_CLIENT->logout($parsedParams);
// never reached
phpCAS :: traceEnd();
}
/**
* This method is used to logout from CAS. Halts by redirecting to the CAS
* server.
*
* @param string $service a URL that will be transmitted to the CAS server
*
* @return void
*/
public static function logoutWithRedirectService($service)
{
phpCAS :: traceBegin();
phpCAS::_validateClientExists();
if (!is_string($service)) {
phpCAS :: error('type mismatched for parameter $service (should be `string\')');
}
self::$_PHPCAS_CLIENT->logout(array ( "service" => $service ));
// never reached
phpCAS :: traceEnd();
}
/**
* This method is used to logout from CAS. Halts by redirecting to the CAS
* server.
*
* @param string $url a URL that will be transmitted to the CAS server
*
* @return void
* @deprecated The url parameter has been removed from the CAS server as of
* version 3.3.5.1
*/
public static function logoutWithUrl($url)
{
trigger_error('Function deprecated for cas servers >= 3.3.5.1', E_USER_DEPRECATED);
phpCAS :: traceBegin();
if (!is_object(self::$_PHPCAS_CLIENT)) {
phpCAS :: error('this method should only be called after ' . __CLASS__ . '::client() or' . __CLASS__ . '::proxy()');
}
if (!is_string($url)) {
phpCAS :: error('type mismatched for parameter $url (should be `string\')');
}
self::$_PHPCAS_CLIENT->logout(array ( "url" => $url ));
// never reached
phpCAS :: traceEnd();
}
/**
* This method is used to logout from CAS. Halts by redirecting to the CAS
* server.
*
* @param string $service a URL that will be transmitted to the CAS server
* @param string $url a URL that will be transmitted to the CAS server
*
* @return void
*
* @deprecated The url parameter has been removed from the CAS server as of
* version 3.3.5.1
*/
public static function logoutWithRedirectServiceAndUrl($service, $url)
{
trigger_error('Function deprecated for cas servers >= 3.3.5.1', E_USER_DEPRECATED);
phpCAS :: traceBegin();
phpCAS::_validateClientExists();
if (!is_string($service)) {
phpCAS :: error('type mismatched for parameter $service (should be `string\')');
}
if (!is_string($url)) {
phpCAS :: error('type mismatched for parameter $url (should be `string\')');
}
self::$_PHPCAS_CLIENT->logout(
array (
"service" => $service,
"url" => $url
)
);
// never reached
phpCAS :: traceEnd();
}
/**
* Set the fixed URL that will be used by the CAS server to transmit the
* PGT. When this method is not called, a phpCAS script uses its own URL
* for the callback.
*
* @param string $url the URL
*
* @return void
*/
public static function setFixedCallbackURL($url = '')
{
phpCAS :: traceBegin();
phpCAS::_validateProxyExists();
try {
self::$_PHPCAS_CLIENT->setCallbackURL($url);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
phpCAS :: traceEnd();
}
/**
* Set the fixed URL that will be set as the CAS service parameter. When this
* method is not called, a phpCAS script uses its own URL.
*
* @param string $url the URL
*
* @return void
*/
public static function setFixedServiceURL($url)
{
phpCAS :: traceBegin();
phpCAS::_validateProxyExists();
try {
self::$_PHPCAS_CLIENT->setURL($url);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
phpCAS :: traceEnd();
}
/**
* Get the URL that is set as the CAS service parameter.
*
* @return string Service Url
*/
public static function getServiceURL()
{
phpCAS::_validateProxyExists();
return (self::$_PHPCAS_CLIENT->getURL());
}
/**
* Retrieve a Proxy Ticket from the CAS server.
*
* @param string $target_service Url string of service to proxy
* @param int &$err_code error code
* @param string &$err_msg error message
*
* @return string Proxy Ticket
*/
public static function retrievePT($target_service, & $err_code, & $err_msg)
{
phpCAS::_validateProxyExists();
try {
return (self::$_PHPCAS_CLIENT->retrievePT($target_service, $err_code, $err_msg));
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
}
/**
* Set the certificate of the CAS server CA and if the CN should be properly
* verified.
*
* @param string $cert CA certificate file name
* @param bool $validate_cn Validate CN in certificate (default true)
*
* @return void
*/
public static function setCasServerCACert($cert, $validate_cn = true)
{
phpCAS :: traceBegin();
phpCAS::_validateClientExists();
try {
self::$_PHPCAS_CLIENT->setCasServerCACert($cert, $validate_cn);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
phpCAS :: traceEnd();
}
/**
* Set no SSL validation for the CAS server.
*
* @return void
*/
public static function setNoCasServerValidation()
{
phpCAS :: traceBegin();
phpCAS::_validateClientExists();
phpCAS :: trace('You have configured no validation of the legitimacy of the cas server. This is not recommended for production use.');
self::$_PHPCAS_CLIENT->setNoCasServerValidation();
phpCAS :: traceEnd();
}
/**
* Disable the removal of a CAS-Ticket from the URL when authenticating
* DISABLING POSES A SECURITY RISK:
* We normally remove the ticket by an additional redirect as a security
* precaution to prevent a ticket in the HTTP_REFERRER or be carried over in
* the URL parameter
*
* @return void
*/
public static function setNoClearTicketsFromUrl()
{
phpCAS :: traceBegin();
phpCAS::_validateClientExists();
self::$_PHPCAS_CLIENT->setNoClearTicketsFromUrl();
phpCAS :: traceEnd();
}
/** @} */
/**
* Change CURL options.
* CURL is used to connect through HTTPS to CAS server
*
* @param string $key the option key
* @param string $value the value to set
*
* @return void
*/
public static function setExtraCurlOption($key, $value)
{
phpCAS :: traceBegin();
phpCAS::_validateClientExists();
self::$_PHPCAS_CLIENT->setExtraCurlOption($key, $value);
phpCAS :: traceEnd();
}
/**
* Set a salt/seed for the session-id hash to make it harder to guess.
*
* When $changeSessionID = true phpCAS will create a session-id that is derived
* from the service ticket. Doing so allows phpCAS to look-up and destroy the
* proper session on single-log-out requests. While the service tickets
* provided by the CAS server may include enough data to generate a strong
* hash, clients may provide an additional salt to ensure that session ids
* are not guessable if the session tickets do not have enough entropy.
*
* @param string $salt The salt to combine with the session ticket.
*
* @return void
*/
public static function setSessionIdSalt($salt) {
phpCAS :: traceBegin();
phpCAS::_validateClientExists();
self::$_PHPCAS_CLIENT->setSessionIdSalt($salt);
phpCAS :: traceEnd();
}
/**
* If you want your service to be proxied you have to enable it (default
* disabled) and define an accepable list of proxies that are allowed to
* proxy your service.
*
* Add each allowed proxy definition object. For the normal CAS_ProxyChain
* class, the constructor takes an array of proxies to match. The list is in
* reverse just as seen from the service. Proxies have to be defined in reverse
* from the service to the user. If a user hits service A and gets proxied via
* B to service C the list of acceptable on C would be array(B,A). The definition
* of an individual proxy can be either a string or a regexp (preg_match is used)
* that will be matched against the proxy list supplied by the cas server
* when validating the proxy tickets. The strings are compared starting from
* the beginning and must fully match with the proxies in the list.
* Example:
* phpCAS::allowProxyChain(new CAS_ProxyChain(array(
* 'https://app.example.com/'
* )));
* phpCAS::allowProxyChain(new CAS_ProxyChain(array(
* '/^https:\/\/app[0-9]\.example\.com\/rest\//',
* 'http://client.example.com/'
* )));
*
* For quick testing or in certain production screnarios you might want to
* allow allow any other valid service to proxy your service. To do so, add
* the "Any" chain:
* phpCAS::allowProxyChain(new CAS_ProxyChain_Any);
* THIS SETTING IS HOWEVER NOT RECOMMENDED FOR PRODUCTION AND HAS SECURITY
* IMPLICATIONS: YOU ARE ALLOWING ANY SERVICE TO ACT ON BEHALF OF A USER
* ON THIS SERVICE.
*
* @param CAS_ProxyChain_Interface $proxy_chain A proxy-chain that will be
* matched against the proxies requesting access
*
* @return void
*/
public static function allowProxyChain(CAS_ProxyChain_Interface $proxy_chain)
{
phpCAS :: traceBegin();
phpCAS::_validateClientExists();
if (self::$_PHPCAS_CLIENT->getServerVersion() !== CAS_VERSION_2_0
&& self::$_PHPCAS_CLIENT->getServerVersion() !== CAS_VERSION_3_0
) {
phpCAS :: error('this method can only be used with the cas 2.0/3.0 protocols');
}
self::$_PHPCAS_CLIENT->getAllowedProxyChains()->allowProxyChain($proxy_chain);
phpCAS :: traceEnd();
}
/**
* Answer an array of proxies that are sitting in front of this application.
* This method will only return a non-empty array if we have received and
* validated a Proxy Ticket.
*
* @return array
* @access public
* @since 6/25/09
*/
public static function getProxies ()
{
phpCAS::_validateProxyExists();
return(self::$_PHPCAS_CLIENT->getProxies());
}
// ########################################################################
// PGTIOU/PGTID and logoutRequest rebroadcasting
// ########################################################################
/**
* Add a pgtIou/pgtId and logoutRequest rebroadcast node.
*
* @param string $rebroadcastNodeUrl The rebroadcast node URL. Can be
* hostname or IP.
*
* @return void
*/
public static function addRebroadcastNode($rebroadcastNodeUrl)
{
phpCAS::traceBegin();
phpCAS::log('rebroadcastNodeUrl:'.$rebroadcastNodeUrl);
phpCAS::_validateClientExists();
try {
self::$_PHPCAS_CLIENT->addRebroadcastNode($rebroadcastNodeUrl);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
phpCAS::traceEnd();
}
/**
* This method is used to add header parameters when rebroadcasting
* pgtIou/pgtId or logoutRequest.
*
* @param String $header Header to send when rebroadcasting.
*
* @return void
*/
public static function addRebroadcastHeader($header)
{
phpCAS :: traceBegin();
phpCAS::_validateClientExists();
try {
self::$_PHPCAS_CLIENT->addRebroadcastHeader($header);
} catch (Exception $e) {
phpCAS :: error(get_class($e) . ': ' . $e->getMessage());
}
phpCAS :: traceEnd();
}
/**
* Checks if a client already exists
*
* @throws CAS_OutOfSequenceBeforeClientException
*
* @return void
*/
private static function _validateClientExists()
{
if (!is_object(self::$_PHPCAS_CLIENT)) {
throw new CAS_OutOfSequenceBeforeClientException();
}
}
/**
* Checks of a proxy client aready exists
*
* @throws CAS_OutOfSequenceBeforeProxyException
*
* @return void
*/
private static function _validateProxyExists()
{
if (!is_object(self::$_PHPCAS_CLIENT)) {
throw new CAS_OutOfSequenceBeforeProxyException();
}
}
/**
* For testing purposes, use this method to set the client to a test double
*
* @return void
*/
public static function setCasClient(\CAS_Client $client)
{
self::$_PHPCAS_CLIENT = $client;
}
}
// ########################################################################
// DOCUMENTATION
// ########################################################################
// ########################################################################
// MAIN PAGE
/**
* @mainpage
*
* The following pages only show the source documentation.
*
*/
// ########################################################################
// MODULES DEFINITION
/** @defgroup public User interface */
/** @defgroup publicInit Initialization
* @ingroup public */
/** @defgroup publicAuth Authentication
* @ingroup public */
/** @defgroup publicServices Access to external services
* @ingroup public */
/** @defgroup publicConfig Configuration
* @ingroup public */
/** @defgroup publicLang Internationalization
* @ingroup publicConfig */
/** @defgroup publicOutput HTML output
* @ingroup publicConfig */
/** @defgroup publicPGTStorage PGT storage
* @ingroup publicConfig */
/** @defgroup publicDebug Debugging
* @ingroup public */
/** @defgroup internal Implementation */
/** @defgroup internalAuthentication Authentication
* @ingroup internal */
/** @defgroup internalBasic CAS Basic client features (CAS 1.0, Service Tickets)
* @ingroup internal */
/** @defgroup internalProxy CAS Proxy features (CAS 2.0, Proxy Granting Tickets)
* @ingroup internal */
/** @defgroup internalSAML CAS SAML features (SAML 1.1)
* @ingroup internal */
/** @defgroup internalPGTStorage PGT storage
* @ingroup internalProxy */
/** @defgroup internalPGTStorageDb PGT storage in a database
* @ingroup internalPGTStorage */
/** @defgroup internalPGTStorageFile PGT storage on the filesystem
* @ingroup internalPGTStorage */
/** @defgroup internalCallback Callback from the CAS server
* @ingroup internalProxy */
/** @defgroup internalProxyServices Proxy other services
* @ingroup internalProxy */
/** @defgroup internalService CAS client features (CAS 2.0, Proxied service)
* @ingroup internal */
/** @defgroup internalConfig Configuration
* @ingroup internal */
/** @defgroup internalBehave Internal behaviour of phpCAS
* @ingroup internalConfig */
/** @defgroup internalOutput HTML output
* @ingroup internalConfig */
/** @defgroup internalLang Internationalization
* @ingroup internalConfig
*
* To add a new language:
* - 1. define a new constant PHPCAS_LANG_XXXXXX in CAS/CAS.php
* - 2. copy any file from CAS/languages to CAS/languages/XXXXXX.php
* - 3. Make the translations
*/
/** @defgroup internalDebug Debugging
* @ingroup internal */
/** @defgroup internalMisc Miscellaneous
* @ingroup internal */
// ########################################################################
// EXAMPLES
/**
* @example example_simple.php
*/
/**
* @example example_service.php
*/
/**
* @example example_service_that_proxies.php
*/
/**
* @example example_service_POST.php
*/
/**
* @example example_proxy_serviceWeb.php
*/
/**
* @example example_proxy_serviceWeb_chaining.php
*/
/**
* @example example_proxy_POST.php
*/
/**
* @example example_proxy_GET.php
*/
/**
* @example example_lang.php
*/
/**
* @example example_html.php
*/
/**
* @example example_pgt_storage_file.php
*/
/**
* @example example_pgt_storage_db.php
*/
/**
* @example example_gateway.php
*/
/**
* @example example_logout.php
*/
/**
* @example example_rebroadcast.php
*/
/**
* @example example_custom_urls.php
*/
/**
* @example example_advanced_saml11.php
*/
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