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<?php
require_once('uphpCAS.php');
session_start();
 
try {
    $cas = new uphpCAS($_SESSION['cas']);
    if(isset($_SESSION['cafile'])) {
        $cas->setCaFile($_SESSION['cafile']);
    }
    if(isset($_SESSION['method'])) {
        $cas->setMethod($_SESSION['method']);
    }
    if(isset($_SESSION['url'])) {
        $cas->setServiceUrl($_SESSION['url']);
    }
    $user = $cas->authenticate();
    
    echo 'Authenticated as '.$user->user;
} catch(Exception $e) {
    echo 'Jasig authentication failed: '.$e->getMessage();
    die();
}