<?php
/*
************************************
* Configuration *
************************************
*/
// PhpCAS library path
$phpCAS_path="CAS.php";
// All valid CAS servers
$cas_servers=array(
// CAS server hostname
$_SERVER['SERVER_NAME'] => array(
// Context of the CAS Server
'context' => '/cas',
// CAS server port
'port' => 443,
// Disable CAS server Validation
'ssl_validation' => false,
// If ssl_validation is enable you must define
'ssl_cacert_path' => '/path/to/cacert.crt',
'ssl_cn_validation' => true
)
);
// FQDN of CAS server
$default_cas_server=key($cas_servers);
// PhpCAS log file
$phpCAS_logfile='/tmp/cas.log';
/*
************************************
* Main *
************************************
*/
$warnings=array();
session_start();
require $phpCAS_path;
CAS_GracefullTerminationException::throwInsteadOfExiting();
if (isset($_REQUEST['server']) && !isset($cas_servers[$_REQUEST['server']])) {
$warnings[]="Invalid CAS server choiced";
unset($_REQUEST['server']);
}
if (isset($_REQUEST['server'])) {
$cas_host=$_REQUEST['server'];
if ($_SESSION['cas_server']!=$cas_host) {
$_SESSION['cas_server']=$cas_host;
unset($_SESSION['phpCAS']['user']);
}
}
elseif (isset($_SESSION['cas_server'])) {
$cas_host=$_SESSION['cas_server'];
}
else {
$cas_host=$default_cas_server;
$_SESSION['cas_server']=$cas_host;
unset($_SESSION['phpCAS']['user']);
}
$_SESSION['cas_server']=$cas_host;
$_show_cas_client_config=false;
function show_cas_client_config() {
global $phpCAS_config, $_show_cas_client_config;
if ($_show_cas_client_config) return true;
$_show_cas_client_config=true;
echo "<h3>CAS Client configuration</h3><ul>";
foreach($phpCAS_config as $cfg_name => $cfg_val) {
echo "<li><strong>$cfg_name :</strong> <em>$cfg_val</em></li>";
}
echo "</ul>";
}
$_show_warnings=false;
function show_warnings() {
global $warnings,$_show_warnings;
if ($_show_warnings) return true;
$_show_warnings=true;
if (!empty($warnings)) {
echo "<h2 style='color: #f00'>Warnings message</h2><ul>";
foreach ($warnings as $msg) {
echo "<li>$msg</li>";
}
echo "</ul>";
}
}
function show_cas_log() {
global $phpCAS_logfile;
echo "<h2>PhpCAS Debug Log</h2>";
if (is_writable($phpCAS_logfile)) {
$lines=file($phpCAS_logfile);
if (is_array($lines)) {
echo '<pre>'.implode('',$lines).'</pre>';
}
else {
echo "<strong>Error reading PhpCAS debug log file ($phpCAS_logfile).</strong>";
}
}
else {
echo "<strong>PhpCAS debug log file does not exists or is not writable ($phpCAS_logfile).</strong>";
}
}
function show_user_infos() {
echo "<strong>Login :</strong> <em>".phpCAS::getUser()."</em><br/>";
echo "<strong>Attributes : </strong><pre>".print_r(phpCAS::getAttributes(),True).'</pre>';
}
?>
<html>
<head>
<title>Test CAS</title>
<style>
strong {
font-size: 0.9em;
}
em {
font-size: 0.8em;
}
pre {
margin-left: 1em;
padding: 1em;
border-left: 1px solid;
background-color: #eee;
font-size: 0.9em;
}
div.success, div.error {
padding: 0.2em;
width: 50%;
font-weight: bold;
margin: 1em;
text-align: center;
}
div.success {
color: #0E4700;
border: 1px solid #0E4700;
background-color: #99E774;
}
div.error {
color: #f00;
border: 1px solid #f00;
padding: 1em;
background-color: #C56E6E;
}
h2 {
border-bottom: 1px solid;
}
</style>
<body>
<h1>Test CAS Application</h1>
<h2>CAS server selection</h2>
<form action='index.php' method='POST'>
<label for='server'>CAS server</label> :
<select name='server' id='server' onchange="javascript:submit();">
<?php
foreach($cas_servers as $srv => $opts) {
echo "<option value='$srv'".(($cas_host==$srv)?'selected':'').">$srv</option>\n";
}
?>
</select>
<input type='submit' value='Change'/>
</form>
<h2>Menu</h2>
<ul>
<li><a href='?do=login'>Login</a></li>
<li><a href='?do=caslogout'>Logout on CAS server</a></li>
<li><a href='?do=locallogout'>Logout on local application</a></li>
<?php
if (is_writable($phpCAS_logfile)) {
echo "<li><a href='?truncatelog=true'>Truncate Debug log file content</a></li>";
}
?>
</ul>
<h2>CAS Client Initialization ...</h2>
<?php
try {
$phpCAS_config=array(
'CAS Hostname' => $cas_host,
'CAS server port' => $cas_servers[$cas_host]['port'],
'CAS server context' => $cas_servers[$cas_host]['context'],
);
if (is_writable($phpCAS_logfile)) {
if (isset($_REQUEST['truncatelog'])) {
$fh = fopen($phpCAS_logfile, 'w');
fclose($fh);
}
$phpCAS_config['Debug file'] = $phpCAS_logfile;
phpCAS::setDebug($phpCAS_logfile);
}
phpCAS::client(CAS_VERSION_2_0, $cas_host, $cas_servers[$cas_host]['port'], $cas_servers[$cas_host]['context']);
echo "<div class='success'>Client successfully initialized</div>";
if ($cas_servers[$cas_host]['ssl_validation']===true) {
if (is_readable($cas_servers[$cas_host]['ssl_cacert_path'])) {
$phpCAS_config['SSL Validation']='Enabled';
$phpCAS_config['SSL CA Cert Validation File']=$cas_servers[$cas_host]['ssl_cacert_path'];
$phpCAS_config['SSL CN Validation']=($cas_servers[$cas_host]['ssl_cn_validation']?'Enabled':'Disabled');
phpCAS::setCasServerCACert($cas_servers[$cas_host]['ssl_cacert_path'],$cas_servers[$cas_host]['ssl_cn_validation']);
}
else {
$warnings[]='SSL validation enable for this server but CA Cert file configured does not exists or is not readable';
$phpCAS_config['SSL Validation']='Disabled';
phpCAS::setNoCasServerValidation();
}
}
else {
$phpCAS_config['SSL Validation']='Disabled';
phpCAS::setNoCasServerValidation();
}
phpCAS::setCacheTimesForAuthRecheck(0);
show_cas_client_config();
show_warnings();
?>
<h2>Action</h2>
<h3>State before running action</h3>
<?php
if (phpCAS::isAuthenticated()) {
echo "Authenticated";
}
else {
echo "Not authenticated";
}
?>
<h3>Running action...</h3>
<?php
if (isset($_REQUEST['do'])) {
switch($_REQUEST['do']) {
case 'login':
phpCAS::forceAuthentication();
echo "<div class='success'>Successfully authenticated</div>";
break;
case 'caslogout':
phpCAS::forceAuthentication();
phpCAS::logout();
break;
case 'locallogout':
unset($_SESSION['phpCAS']);
if (!isset($_SESSION['phpCAS'])) {
echo "<div class='success'>Successfully logout</div>";
}
else {
echo "<div class='error'>Failed to unset phpCAS session informations</div>";
}
break;
default:
echo "<div class='error'>Incorrect parameters</div>";
}
}
else {
echo "Nothing to do";
}
if (phpCAS::isAuthenticated()) {
echo "<h2>Authenticated user informations</h2>";
show_user_infos();
}
// End of catch
}
catch (CAS_GracefullTerminationException $e) {
echo "<div class='error'>PhpCAS return exception</div>";
show_cas_client_config();
show_warnings();
}
show_cas_log();
?>
</body>
</html>