417 lines
12 KiB
PHP
417 lines
12 KiB
PHP
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<?php
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/*
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************************************
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* Configuration *
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************************************
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*/
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// PhpCAS library path
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$phpCAS_path = "CAS.php";
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// All valid CAS servers
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$cas_servers = array(
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// CAS server hostname
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$_SERVER['SERVER_NAME'] => array(
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// Context of the CAS Server
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'context' => '/idp/cas',
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// CAS server port
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'port' => 8443,
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// If you running this application in HTTP only, uncomment following parameter
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//'insecure' => true,
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// Disable CAS server Validation
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'ssl_validation' => false,
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// If ssl_validation is enable you must define
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'ssl_cacert_path' => '/etc/ssl/certs/ca-certificates.crt',
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'ssl_cn_validation' => true,
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// Extra CURL options (for phpCAS client)
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'extra_curl_options' => array(
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// Uncomment it in case of 'dh key too small' error
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// 'CURLOPT_SSL_CIPHER_LIST' => 'DEFAULT@SECLEVEL=1',
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),
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),
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$_SERVER['SERVER_NAME'].'2' => array(
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// Context of the CAS Server
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'context' => '/idp/cas',
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// CAS server port
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'port' => 8443,
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// If you running this application in HTTP only, uncomment following parameter
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//'insecure' => true,
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// Disable CAS server Validation
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'ssl_validation' => false,
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// If ssl_validation is enable you must define
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'ssl_cacert_path' => '/etc/ssl/certs/ca-certificates.crt',
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'ssl_cn_validation' => true,
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// Extra CURL options (for phpCAS client)
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'extra_curl_options' => array(
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// Uncomment it in case of 'dh key too small' error
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// 'CURLOPT_SSL_CIPHER_LIST' => 'DEFAULT@SECLEVEL=1',
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),
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),
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);
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// FQDN of CAS server
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$default_cas_server = key($cas_servers);
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// PhpCAS debug logs
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// Log directory path
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$phpCAS_logdir = 'logs';
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// Log filename format
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// Compose with :
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// - {cas_server} : the CAS server
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// - {remote_addr} : connected user remote IP address
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// - {session_id} : connected user session_id
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$phpCAS_logfile_format = '{session_id}-{cas_server}.log';
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// Local app URL (auto-detect on first acces if null)
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$service_url = null;
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/*
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************************************
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* Main *
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************************************
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*/
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$warnings = array();
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session_start();
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require $phpCAS_path;
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CAS_GracefullTerminationException::throwInsteadOfExiting();
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// Initialize session variables
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if (isset($_SESSION['cas_server']) && array_key_exists($_SESSION['cas_server'], $cas_servers)) {
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$cas_host = $_SESSION['cas_server'];
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}
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else {
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$_SESSION['cas_server'] = $cas_host = $default_cas_server;
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}
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if (!isset($_SESSION['user'])) $_SESSION['user'] = null;
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if (!isset($_SESSION['attributes'])) $_SESSION['attributes'] = null;
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// Generate phpCAS debug log file path
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$phpCAS_logfile = "$phpCAS_logdir/$phpCAS_logfile_format";
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$phpCAS_logfile = str_replace('{cas_server}', $cas_host, $phpCAS_logfile);
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$phpCAS_logfile = str_replace('{remote_addr}', $_SERVER['REMOTE_ADDR'], $phpCAS_logfile);
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$phpCAS_logfile = str_replace('{session_id}', session_id(), $phpCAS_logfile);
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$phpCAS_config = array();
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function init_phpCAS() {
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global $phpCAS_logfile, $phpCAS_config, $warnings, $cas_host, $cas_servers, $service_url;
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// Make sure service URL is defined (otherwise, load it from session or auto-detect)
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if (is_null($service_url)) {
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if (isset($_SESSION['service_url'])) {
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$service_url = $_SESSION['service_url'];
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}
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else {
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$https = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off');
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$request_uri = $_SERVER['REQUEST_URI'];
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$request_uri = preg_replace('/\?.*$/', '', $request_uri);
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$service_url = "http".($https?"s":"")."://".$_SERVER['SERVER_NAME'];
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if (($_SERVER['SERVER_PORT'] != 443 && $https) || ($_SERVER['SERVER_PORT'] != 80 && !$https))
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$service_url .= ":".$_SERVER['SERVER_PORT'];
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$service_url .= $request_uri;
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$_SESSION['service_url'] = $service_url;
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}
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}
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// Compute phpCAS configuration
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$phpCAS_config = array(
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'CAS Hostname' => $cas_host,
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'CAS server port' => $cas_servers[$cas_host]['port'],
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'CAS server context' => $cas_servers[$cas_host]['context'],
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'Service URL' => $service_url,
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);
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// Set phpCAS log file
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if (is_writable($phpCAS_logfile) || (!is_file($phpCAS_logfile) && is_writable(dirname($phpCAS_logfile)))) {
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$phpCAS_config['Debug file'] = $phpCAS_logfile;
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phpCAS::setDebug($phpCAS_logfile);
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}
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try {
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phpCAS::client(
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CAS_VERSION_2_0,
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$cas_host,
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$cas_servers[$cas_host]['port'],
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$cas_servers[$cas_host]['context']
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);
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phpCAS::setNoClearTicketsFromUrl();
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phpCAS::setFixedServiceURL($service_url);
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// Set extra CURL options
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if (isset($cas_servers[$cas_host]['extra_curl_options']) && is_array($cas_servers[$cas_host]['extra_curl_options'])) {
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foreach($cas_servers[$cas_host]['extra_curl_options'] as $opt => $value) {
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if (is_string($opt) && substr($opt, 0, 7) == 'CURLOPT' && defined($opt))
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$opt = constant($opt);
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phpCAS::setExtraCurlOption($opt, $value);
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}
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}
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if ($cas_servers[$cas_host]['insecure']) {
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$phpCAS_config['Insecure'] = 'Yes';
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$phpCAS_config['Base URL'] = 'http://'.$cas_host.($cas_servers[$cas_host]['port']?':'.$cas_servers[$cas_host]['port']:'').$cas_servers[$cas_host]['context'];
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// Remove trailing slash if present
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if (substr($phpCAS_config['Base URL'], -1)=='/')
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$phpCAS_config['Base URL'] = substr($phpCAS_config['Base URL'], 0, -1);
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$phpCAS_config['Login URL'] = $phpCAS_config['Base URL']."/login?service=".urlencode($service_url);
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$phpCAS_config['Logout URL'] = $phpCAS_config['Base URL']."/logout";
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$phpCAS_config['Service validate URL'] = $phpCAS_config['Base URL']."/serviceValidate";
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phpCAS::setServerLoginURL($phpCAS_config['Login URL']);
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phpCAS::setServerLogoutURL($phpCAS_config['Logout URL']);
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phpCAS::setServerServiceValidateURL($phpCAS_config['Service validate URL']);
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// Be sure SSL validation is disabled
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$cas_servers[$cas_host]['ssl_validation'] = false;
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}
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else
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$phpCAS_config['Insecure'] = 'No';
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if ($cas_servers[$cas_host]['ssl_validation'] === true) {
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if (is_readable($cas_servers[$cas_host]['ssl_cacert_path'])) {
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$phpCAS_config['SSL Validation'] = 'Enabled';
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$phpCAS_config['SSL CA Cert Validation File'] = $cas_servers[$cas_host]['ssl_cacert_path'];
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$phpCAS_config['SSL CN Validation'] = (
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$cas_servers[$cas_host]['ssl_cn_validation']?
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'Enabled':'Disabled'
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);
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phpCAS::setCasServerCACert(
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$cas_servers[$cas_host]['ssl_cacert_path'],
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$cas_servers[$cas_host]['ssl_cn_validation']
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);
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}
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else {
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$warnings[] = 'SSL validation enable for this server but CA Cert file configured does not exists or is not readable';
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$phpCAS_config['SSL Validation'] = 'Disabled';
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phpCAS::setNoCasServerValidation();
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}
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}
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else {
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$phpCAS_config['SSL Validation'] = 'Disabled';
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phpCAS::setNoCasServerValidation();
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}
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phpCAS::setCacheTimesForAuthRecheck(0);
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}
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catch (CAS_GracefullTerminationException $e) {
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$warnings[] = 'PhpCAS return exception';
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return false;
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}
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return true;
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}
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function local_logout() {
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unset($_SESSION['session_url']);
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unset($_SESSION['phpCAS']);
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unset($_SESSION['user']);
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unset($_SESSION['attributes']);
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return !isset($_SESSION['phpCAS']);
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}
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function json_output($success=true, $data=null, $return_code=200, $exit=true) {
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global $warnings, $phpCAS_config, $phpCAS_logfile, $cas_servers;
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// Retreive phpCAS logs
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$logs = false;
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if (is_writable($phpCAS_logfile)) {
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$lines = file($phpCAS_logfile);
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if (is_array($lines)) {
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$logs = implode('',$lines);
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}
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else {
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$warnings[] = "Error reading PhpCAS debug log file ($phpCAS_logfile).";
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}
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}
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else {
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$warnings[] = "PhpCAS debug log file does not exists or is not writable ($phpCAS_logfile).";
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}
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// Compute return data
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$return = array(
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'success' => $success,
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'data' => $data,
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'logs' => $logs,
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'warnings' => $warnings,
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'config' => $phpCAS_config,
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'cas_servers' => $cas_servers,
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'cas_server' => $_SESSION['cas_server'],
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'user' => $_SESSION['user'],
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'attributes' => $_SESSION['attributes'],
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);
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// Handle JSON output
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http_response_code($return_code);
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header('Content-Type: application/json; charset=utf-8');
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echo json_encode($return);
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if ($exit) exit();
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}
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// Handle API call
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if (isset($_REQUEST['do'])) {
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switch($_REQUEST['do']) {
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case 'status':
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json_output(init_phpCAS());
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break;
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case 'change_server':
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if (!isset($_REQUEST['server'])) {
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$warnings[] = "Invalid parameters: selected CAS server is missing.";
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json_output(false);
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}
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if (!isset($cas_servers[$_REQUEST['server']])) {
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$warnings[] = "Invalid CAS server choiced";
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json_output(false);
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}
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if ($_SESSION['cas_server'] != $_REQUEST['server']) {
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local_logout();
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}
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$cas_host = $_SESSION['cas_server'] = $_REQUEST['server'];
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json_output(init_phpCAS());
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break;
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case 'login':
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if (!init_phpCAS()) json_output(false);
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if (phpCAS::isAuthenticated()) {
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$warnings[] = 'Already authenticated. Please logout (at least local logout) before.';
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json_output(false);
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}
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json_output(true, array('login_url' => phpCAS::getServerLoginURL()));
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break;
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case 'validate_ticket':
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if (!init_phpCAS()) json_output(false);
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if (phpCAS::isAuthenticated()) {
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$_SESSION['user'] = phpCAS::getUser();
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$_SESSION['attributes'] = phpCAS::getAttributes();
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json_output(true);
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}
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else {
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$warnings[] = 'Fail to validate ticket, please check logs.';
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json_output(false);
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}
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break;
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case 'logout':
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if (!init_phpCAS()) json_output(false);
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if (!phpCAS::isAuthenticated()) {
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$warnings[] = 'Not currently authenticated.';
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json_output(false);
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}
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if (!local_logout()) {
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$warnings[] = 'Fail to purge local session.';
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json_output(false);
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}
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$logout_url = phpCAS::getServerLogoutURL().'?<se></se>rvice='.$service_url;
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json_output(true, array('logout_url' => $logout_url));
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break;
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case 'locallogout':
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unset($_SESSION['session_url']);
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unset($_SESSION['phpCAS']);
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unset($_SESSION['user']);
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unset($_SESSION['attributes']);
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json_output();
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break;
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case 'truncatelog':
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$success = false;
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if (is_file($phpCAS_logfile)) {
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if (!is_writable(dirname($phpCAS_logfile))) {
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$warnings[] = 'Logs directory is not writable ('.dirname($phpCAS_logfile).').';
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json_output(false);
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}
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$fh = fopen($phpCAS_logfile, 'w');
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fclose($fh);
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}
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json_output(true);
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break;
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default:
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$warnings[] = 'Invalid request';
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json_output(false);
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}
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}
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?>
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<html>
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<head>
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<title>Test CAS</title>
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<script src="jquery-3.6.0.min.js"></script>
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<script src="app.js"></script>
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<style>
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h2 {
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border-bottom: 1px solid;
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}
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strong {
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font-size: 0.9em;
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}
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em {
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font-size: 0.8em;
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}
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#warnings {
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color: #fff;
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background-color: #C56E6E;
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}
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pre {
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margin-left: 1em;
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padding: 1em;
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border-left: 1px solid;
|
||
|
|
background-color: #eee;
|
||
|
|
font-size: 0.9em;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Defaulty hide UI components (expect menu) */
|
||
|
|
#cas_server_selection, #cas_config, #user_info, #warnings, #cas_logs {
|
||
|
|
display: none;
|
||
|
|
}
|
||
|
|
</style>
|
||
|
|
|
||
|
|
</style>
|
||
|
|
<body>
|
||
|
|
<h1>Test CAS Application</h1>
|
||
|
|
|
||
|
|
<div id='cas_server_selection'>
|
||
|
|
<h2>CAS server selection</h2>
|
||
|
|
<form action='index.php' method='POST'>
|
||
|
|
<label for='server'>CAS server</label> :
|
||
|
|
<select name='server' id='select_server'></select>
|
||
|
|
</form>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<div id='cas_config'>
|
||
|
|
<h2>PhpCAS configuration</h2>
|
||
|
|
<ul></ul>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<h2>Menu</h2>
|
||
|
|
<ul>
|
||
|
|
<li><button id='login_btn'>Login</button></li>
|
||
|
|
<li><button id='caslogout_btn'>Logout on CAS server</button></li>
|
||
|
|
<li><button id='locallogout_btn'>Logout on local application</button></li>
|
||
|
|
<li><button id='truncatelog_btn'>Truncate Debug log file content</button></li>
|
||
|
|
</ul>
|
||
|
|
|
||
|
|
<div id='user_info'></div>
|
||
|
|
|
||
|
|
<div id='warnings'></div>
|
||
|
|
|
||
|
|
<div id='cas_logs'>
|
||
|
|
<h2>PhpCAS Debug logs</h2>
|
||
|
|
<pre></pre>
|
||
|
|
</div
|
||
|
|
|
||
|
|
</body>
|
||
|
|
</html>
|