uphpCAS.php

@@ -26,10 +26,12 @@
         $port = 0;
         if(isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') {
            $url = 'https://';
            if(isset($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] != '443') {
            if(isset($_SERVER['SERVER_PORT'])
                  && $_SERVER['SERVER_PORT'] != '443') {
               $port = $_SERVER['SERVER_PORT'];
            }
         } elseif(isset($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] != '80') {
         } elseif(isset($_SERVER['SERVER_PORT'])
               && $_SERVER['SERVER_PORT'] != '80') {
            $port = $_SERVER['SERVER_PORT'];
         }
         
@@ -69,9 +71,13 @@
      die();
   }
   
   public function isAuthenticated() {
      return isset($_SESSION['uphpCAS-user']);
   }
	
   public function authenticate() {
      session_start();
      if(isset($_SESSION['uphpCAS-user'])) {
      if($this->isAuthenticated()) {
         return $_SESSION['uphpCAS-user'];
      } elseif(isset($_REQUEST['ticket'])) {
         $user = $this->verifyTicket($_REQUEST['ticket']);
@@ -92,13 +98,37 @@
         ),
         'ssl' => array(
            'verify_peer' => TRUE,
            'allow_self_signed' => FALSE,
            'verify_peer_name' => TRUE,
            'verify_depth' => 5,
            'ciphers' => 'HIGH:-MD5:-aNULL:-DES',
            'allow_self_signed' => FALSE,
            'disable_compression' => TRUE,
         ),
      );
      
      $data = file_get_contents($this->serverUrl.'/serviceValidate?service='.urlencode($this->serviceUrl).'&ticket='.urlencode($ticket),
      if(version_compare(PHP_VERSION, '5.6', '<')) {
         $cafiles = array(
            '/etc/ssl/certs/ca-certificates.crt',
            '/etc/ssl/certs/ca-bundle.crt',
            '/etc/pki/tls/certs/ca-bundle.crt',
         );
         $cafile = NULL;
         foreach($cafiles as $file) {
            if(is_file($file)) {
               $cafile = $file;
               break;
            }
         }
			
         $url = parse_url($this->serverUrl);
         $context['ssl']['cafile'] = $cafile;
         $context['ssl']['ciphers'] = 'ECDH:DH:AES:CAMELLIA:!SSLv2:!aNULL'
               .':!eNULL:!EXPORT:!DES:!3DES:!MD5:!RC4:!ADH:!PSK:!SRP';
         $context['ssl']['CN_match'] = $url['host'];
      }
		
      $data = file_get_contents($this->serverUrl
               .'/serviceValidate?service='.urlencode($this->serviceUrl)
               .'&ticket='.urlencode($ticket),
            FALSE, stream_context_create($context));
      if($data === FALSE) {
         throw new JasigException('Authentication error: CAS server is unavailable');
@@ -111,19 +141,20 @@
         $xml->loadXML($data);
         
         foreach(libxml_get_errors() as $error) {
            $e = new ErrorException($error->message, $error->code, 1, $error->file, $error->line);
            $e = new ErrorException($error->message, $error->code, 1,
                  $error->file, $error->line);
            switch ($error->level) {
               case LIBXML_ERR_ERROR:
                  throw new Exception('Fatal error during XML parsing', 0, $e);
                  break;
               case LIBXML_ERR_FATAL:
                  throw new Exception('Fatal error during XML parsing', 0, $e);
                  throw new Exception('Fatal error during XML parsing',
                        0, $e);
                  break;
            }
         }
      }
      catch(Exception $e) {
         throw new JasigException('Authentication error: CAS server response invalid - parse error', 0, $e);
         throw new JasigException('Authentication error: CAS server'
               .' response invalid - parse error', 0, $e);
      } finally {
         libxml_clear_errors();
         libxml_disable_entity_loader($xmlEntityLoader);
@@ -136,23 +167,28 @@
      if($failure->length > 0) {
         $failure = $failure->item(0);
         if(!($failure instanceof DOMElement)) {
            throw new JasigException('Authentication error: CAS server response invalid - authenticationFailure');
            throw new JasigException('Authentication error: CAS server'
                  .' response invalid - authenticationFailure');
         }
         throw new JasigAuthException('Authentication error: '.$failure->textContent);
         throw new JasigAuthException('Authentication error: '
               .$failure->textContent);
      } elseif($success->length > 0) {
         $success = $success->item(0);
         if(!($success instanceof DOMElement)) {
            throw new JasigException('Authentication error: CAS server response invalid - authenticationSuccess');
            throw new JasigException('Authentication error: CAS server'
                  .' response invalid - authenticationSuccess');
         }
         
         $user = $success->getElementsByTagName('user');
         if($user->length == 0) {
            throw new JasigException('Authentication error: CAS server response invalid - user');
            throw new JasigException('Authentication error: CAS server'
                  .' response invalid - user');
         }
         
         $user = trim($user->item(0)->textContent);
         if(strlen($user)<1) {
            throw new JasigException('Authentication error: CAS server response invalid - user value');
            throw new JasigException('Authentication error: CAS server'
                  .' response invalid - user value');
         }
         
         $jusr = new JasigUser();
@@ -170,7 +206,8 @@
      }
      else
      {
         throw new JasigException('Authentication error: CAS server response invalid - required tag not found');
         throw new JasigException('Authentication error: CAS server'
               .' response invalid - required tag not found');
      }
   }
}