<?php

/**
 * @file 
 * Connection Helper Class
 */
module_load_include('inc', 'ConnectionHelper', '');

/**
 * Connection Helper Class ??
 */
class ConnectionHelper {

  /**
   * Constructor
   */
  function ConnectionHelper() {
    drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL);
  }

  /**
   * fixURL ??
   * @param type $url
   * @param type $_name
   * @param type $_pass
   * @return string 
   */
  function _fixURL($url, $_name, $_pass) {
    if (empty($url)) {
      $url = variable_get('fedora_soap_url', 'http://localhost:8080/fedora/services/access?wsdl');
    }

    $creds = urlencode($_name) . ':' . urlencode($_pass);

    if (strpos($url, 'http://') === 0) {
      $new_url = 'http://' . $creds . '@' . substr($url, 7);
    }
    elseif (strpos($url, 'https://') === 0) {
      $new_url = 'https://' . $creds . '@' . substr($url, 8);
    }
    else {
      drupal_set_message(t('Invalid URL: !url', array('!url' => $url)));
      return NULL;
    }

    return $new_url;
  }

  /**
   * getSoapClient
   * @global type $user
   * @param type $url
   * @param type $exceptions
   * @return SoapClient 
   */
  function getSoapClient($url = NULL, $exceptions = TRUE) {
    if (empty($url)) {
      $url = variable_get('fedora_soap_url', 'http://localhost:8080/fedora/services/access?wsdl');
    }

    global $user;
    if ($user->uid == 0) {
      //anonymous user.  We will need an entry in the fedora users.xml file
      //with the appropriate entry for a username of anonymous password of anonymous
      try {
        $client = new SoapClient($url, array(
            'login' => 'anonymous',
            'password' => 'anonymous',
            'exceptions' => $exceptions,
            'authentication' => SOAP_AUTHENTICATION_BASIC
          ));
      } catch (SoapFault $e) {
        drupal_set_message(t('@e', array('@e' => check_plain($e->getMessage()))));
        return NULL;
      }
    }
    else {
      try {
        $client = new SoapClient($url, array(
            'login' => $user->name,
            'password' => $user->pass,
            'exceptions' => TRUE,
            'authentication' => SOAP_AUTHENTICATION_BASIC,
            'cache_wsdl' => WSDL_CACHE_MEMORY
          ));
      } catch (SoapFault $e) {
        drupal_set_message(t('@e', array('@e' => check_plain($e->getMessage()))));
        return NULL;
      }
    }
    if (isset($_SESSION['islandora_soapcookies'])) {

      // just set the cookies

      $client->_cookies = ($_SESSION['islandora_soapcookies']);
    }
    else {
      try {
        //we need to make a call to set the cookie this extra call would only happen once per session
        $client->__soapCall('describeRepository', array());
        $_SESSION['islandora_soapcookies'] = $client->_cookies;
      } catch (exception $e) {
        //connection is tested elsewhere so eat this for now here we just want the cookie
      }
    }


    return $client;
  }

}