Club Drupal

<?php

/**

 * @file

 * Response callbacks for the CAS Server module.

 */

/**

 * Returns a CAS 2.0 service response for a validation success.

 *

 * @param $variables

 *   An associative array containing the keys:

 *   - 'name': CAS username.

 *   - 'attributes': (optional) CAS attributes.

 */

function theme_cas_service_validate_success($variables) {

  $cas_name = $variables['name'];

  $output = "<cas:serviceResponse xmlns:cas='http://www.yale.edu/tp/cas'>\n";

  $output .= "<cas:authenticationSuccess>\n";

  $output .= "<cas:user>$cas_name</cas:user>\n";

  $output .= theme('cas_service_validate_attributes', $variables);

  $output .= "</cas:authenticationSuccess>\n";

  $output .= "</cas:serviceResponse>\n";

  return $output;

}

/**

 * Returns CAS attributes as part of a CAS 2.0 service response.

 *

 * @param $variables

 *   An asociative array containing the keys 'attributes' and 'style', where

 *   the value of 'style' must be one of:

 *     - 'jasig' (default)

 *     - 'rubycas'

 *     - 'name-value'

 */

function theme_cas_service_validate_attributes($variables) {

  $attributes = $variables['attributes'];

  $style = $variables['style'];

  $output = '';

  switch ($style) {

    case 'jasig':

    default:

      $output .= "<cas:attributes>\n";

      $output .= "<cas:attraStyle>Jasig</cas:attraStyle>\n";

      foreach ($attributes as $name => $values) {

        foreach ((array) $values as $value) {

          $output .= strtr("<cas:!name>!value</cas:!name>\n", array('!name' => $name, '!value' => $value));

        }

      }

      $output .= "</cas:attributes>\n";

      break;

    case 'rubycas':

      $output .= "<cas:attraStyle>RubyCAS</cas:attraStyle>\n";

      foreach ($attributes as $name => $values) {

        foreach ((array) $values as $value) {

          $output .= strtr("<cas:!name>!value</cas:!name>\n", array('!name' => $name, '!value' => $value));

        }

      }

      break;

    case 'name-value':

      $output .= "<cas:attribute name='attraStyle' value='Name-Value' />\n";

      foreach ($attributes as $name => $values) {

        foreach ((array) $values as $value) {

          $output .= strtr("<cas:attribute name='!name' value='!value' />\n", array('!name' => $name, '!value' => $value));

        }

      }

      break;

  }

  return $output;

}

/**

 * Returns a CAS 2.0 service response for a validation failure.

 *

 * @param $variables

 *  An associative array containing the keys 'ticket' and 'error_code'.

 */

function theme_cas_service_validate_failure($variables) {

  $ticket = $variables['ticket'];

  $error_code = $variables['error_code'];

  $output = "<cas:serviceResponse xmlns:cas='http://www.yale.edu/tp/cas'>\n";

  $output .= "<cas:authenticationFailure code=\"$error_code\">\n";

  $output .= "Ticket $ticket not recognized.\n";

  $output .= "</cas:authenticationFailure>\n";

  $output .= "</cas:serviceResponse>\n";

  return $output;

}

/**

 * Generate the Single Sign Out request.

 *

 * @param unknown_type $variables

 *   An associative array containing the key, date and logout id request

 */

function theme_cas_service_logout_request($variables) {

  $id = $variables['id'];

  $date = $variables['date'];

  $ticket = $variables['ticket'];

  $output = "<samlp:LogoutRequest xmlns:samlp='urn:oasis:names:tc:SAML:2.0:protocol' ID='$id' Version='2.0' IssueInstant='$date'>\n";

  $output .= "<saml:NameID xmlns:saml='urn:oasis:names:tc:SAML:2.0:assertion'>@NOT_USED@</saml:NameID>\n";

  $output .= "<samlp:SessionIndex>$ticket</samlp:SessionIndex>\n";

  $output .= "</samlp:LogoutRequest>\n";

  return $output;

}