phpCAS::setPGTStorageFile PHP Method

    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();
    }

 /**
  * Initializes the authority objects based on an associative array of arguments
  * @param array $args an associate array of arguments. The argument list is dependent on the authority
  *
  * General - Required keys:
  *   TITLE => The human readable title of the AuthorityImage
  *   INDEX => The tag used to identify this authority @see AuthenticationAuthority::getAuthenticationAuthority
  *
  * General - Optional keys:
  *   LOGGEDIN_IMAGE_URL => a url to an image/badge that is placed next to the user name when logged in
  *
  * CAS - Required keys:
  *   CAS_PROTOCOL => The protocol to use. Should be equivalent to one of the phpCAS constants, e.g. "2.0":
  *                   CAS_VERSION_1_0 => '1.0', CAS_VERSION_2_0 => '2.0', SAML_VERSION_1_1 => 'S1'
  *   CAS_HOST => The host name of the CAS server, e.g. "cas.example.edu"
  *   CAS_PORT => The port the CAS server is listening on, e.g. "443"
  *   CAS_PATH => The path of the CAS application, e.g. "/cas/"
  *   CAS_CA_CERT => The filesystem path to a CA certificate that will be used to validate the authenticity
  *                  of the CAS server, e.g. "/etc/tls/pki/certs/my_ca_cert.crt". If empty, no certificate
  *                  validation will be performed (not recommended for production).
  *
  * CAS - Optional keys:
  *   ATTRA_EMAIL => Attribute name for the user's email adress, e.g. "email". This only applies if your 
  *                  CAS server returns attributes in a SAML-1.1 or CAS-2.0 response.
  *   ATTRA_FIRST_NAME => Attribute name for the user's first name, e.g. "givename". This only applies if your 
  *                       CAS server returns attributes in a SAML-1.1 or CAS-2.0 response.
  *   ATTRA_LAST_NAME => Attribute name for the user's last name, e.g. "surname". This only applies if your 
  *                      CAS server returns attributes in a SAML-1.1 or CAS-2.0 response.
  *   ATTRA_FULL_NAME => Attribute name for the user's full name, e.g. "displayname". This only applies if your 
  *                      CAS server returns attributes in a SAML-1.1 or CAS-2.0 response.
  *   ATTRA_MEMBER_OF => Attribute name for the user's groups, e.g. "memberof". This only applies if your 
  *                      CAS server returns attributes in a SAML-1.1 or CAS-2.0 response.
  *
  * NOTE: Any subclass MUST call parent::init($args) to ensure proper operation
  *
  */
 public function init($args)
 {
     parent::init($args);
     // include the PHPCAS library
     if (empty($args['CAS_PHPCAS_PATH'])) {
         require_once 'CAS.php';
     } else {
         require_once $args['CAS_PHPCAS_PATH'] . '/CAS.php';
     }
     if (empty($args['CAS_PROTOCOL'])) {
         throw new KurogoConfigurationException('CAS_PROTOCOL value not set for ' . $this->AuthorityTitle);
     }
     if (empty($args['CAS_HOST'])) {
         throw new KurogoConfigurationException('CAS_HOST value not set for ' . $this->AuthorityTitle);
     }
     if (empty($args['CAS_PORT'])) {
         throw new KurogoConfigurationException('CAS_PORT value not set for ' . $this->AuthorityTitle);
     }
     if (empty($args['CAS_PATH'])) {
         throw new KurogoConfigurationException('CAS_PATH value not set for ' . $this->AuthorityTitle);
     }
     if (empty($args['CAS_PROXY_INIT'])) {
         phpCAS::client($args['CAS_PROTOCOL'], $args['CAS_HOST'], intval($args['CAS_PORT']), $args['CAS_PATH'], false);
     } else {
         phpCAS::proxy($args['CAS_PROTOCOL'], $args['CAS_HOST'], intval($args['CAS_PORT']), $args['CAS_PATH'], false);
         if (!empty($args['CAS_PROXY_TICKET_PATH'])) {
             phpCAS::setPGTStorageFile('', $args['CAS_PROXY_TICKET_PATH']);
         }
         if (!empty($args['CAS_PROXY_FIXED_CALLBACK_URL'])) {
             phpCAS::setFixedCallbackURL($args['CAS_PROXY_FIXED_CALLBACK_URL']);
         }
     }
     if (empty($args['CAS_CA_CERT'])) {
         phpCAS::setNoCasServerValidation();
     } else {
         phpCAS::setCasServerCACert($args['CAS_CA_CERT']);
     }
     // Record any attribute mapping configured.
     if (!empty($args['ATTRA_EMAIL'])) {
         CASUser::mapAttribute('Email', $args['ATTRA_EMAIL']);
     }
     if (!empty($args['ATTRA_FIRST_NAME'])) {
         CASUser::mapAttribute('FirstName', $args['ATTRA_FIRST_NAME']);
     }
     if (!empty($args['ATTRA_LAST_NAME'])) {
         CASUser::mapAttribute('LastName', $args['ATTRA_LAST_NAME']);
     }
     if (!empty($args['ATTRA_FULL_NAME'])) {
         CASUser::mapAttribute('FullName', $args['ATTRA_FULL_NAME']);
     }
     // Store an attribute for group membership if configured.
     if (!empty($args['ATTRA_MEMBER_OF'])) {
         CASUser::mapAttribute('MemberOf', $args['ATTRA_MEMBER_OF']);
     }
 }