<?php
/*
 * @version $Id: fqdn.class.php 22657 2014-02-12 16:17:54Z moyo $
 -------------------------------------------------------------------------
 GLPI - Gestionnaire Libre de Parc Informatique
 Copyright (C) 2003-2014 by the INDEPNET Development Team.

 http://indepnet.net/   http://glpi-project.org
 -------------------------------------------------------------------------

 LICENSE

 This file is part of GLPI.

 GLPI is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2 of the License, or
 (at your option) any later version.

 GLPI is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with GLPI. If not, see <http://www.gnu.org/licenses/>.
 --------------------------------------------------------------------------
*/

/** @file
* @brief
*/

if (!defined('GLPI_ROOT')) {
   die("Sorry. You can't access directly to this file");
}

/// Class FQDN : Fully Qualified Domain Name
/// since version 0.84
class FQDN extends CommonDropdown {

   public $dohistory = true;


   static function canCreate() {
      return Session::haveRight('internet', 'w');
   }


   static function canView() {
      return Session::haveRight('internet', 'r');
   }


   static function getTypeName($nb=0) {
      return _n('Internet domain', 'Internet domains', $nb);
   }


   function getAdditionalFields() {

      return array(array('name'    => 'fqdn',
                         'label'   => __('FQDN'),
                         'type'    => 'text',
                         'comment'
                          => __('Fully Qualified Domain Name. Use the classical notation (labels separated by dots). For example: indepnet.net'),
                         'list'    => true));
   }


   /**
    * \brief Prepare the input before adding or updating
    * Checking suppose that each FQDN is compose of dot separated array of labels and its unique
    * \see (FQDNLabel)
    *
    * @param $input fields of the record to check
    *
    * @return false or fields checks and update (lowercase for the fqdn field)
   **/
   function prepareInput($input) {

      if (isset($input['fqdn'])
          || $this->isNewID($this->getID())) {

         // Check that FQDN is not empty
         if (empty($input['fqdn'])) {
            Session::addMessageAfterRedirect(__('FQDN must not be empty'), false, ERROR);
            return false;
         }

         // Transform it to lower case
         $input["fqdn"] = strtolower($input['fqdn']);

         // Then check its validity
         if (!self::checkFQDN($input["fqdn"])) {
            Session::addMessageAfterRedirect(__('FQDN is not valid'), false, ERROR);
            return false;
         }

      }
      return $input;
   }


   function prepareInputForAdd($input) {
      return $this->prepareInput(parent::prepareInputForAdd($input));
   }


   function prepareInputForUpdate($input) {
      return $this->prepareInput(parent::prepareInputForUpdate($input));
   }


   function defineTabs($options=array()) {

      $ong = array();
      $this->addStandardTab('NetworkName', $ong, $options);
      $this->addStandardTab('NetworkAlias', $ong, $options);
      $this->addStandardTab('Log', $ong, $options);

      return $ong;
   }


   /**
    * @return the FQDN of the element, or "" if invalid FQDN
   **/
   function getFQDN() {

      if ($this->can($this->getID(), 'r')) {
         return $this->fields["fqdn"];
      }
      return "";
   }


   /**
    * Search FQDN id from string FDQDN
    *
    * @param $fqdn            string   value of the fdqn (for instance : indeptnet.net)
    * @param $wildcard_search boolean  true if we search with wildcard (false by default)
    *
    * @return if $wildcard_search == false : the id of the fqdn, -1 if not found or several answers
    *         if $wildcard_search == true : an array of the id of the fqdn
   **/
   static function getFQDNIDByFQDN($fqdn, $wildcard_search=false) {
      global $DB;

      if (empty($fqdn)) {
         return 0;
      }

      $fqdn = strtolower($fqdn);
      if ($wildcard_search) {
         $count = 0;
         $fqdn  = str_replace('*', '%', $fqdn, $count);
         if ($count == 0) {
            $fqdn = '%'.$fqdn.'%';
         }
         $relation = "LIKE '$fqdn'";
      } else {
         $relation = "= '$fqdn'";
      }

      $query = "SELECT `id`
                FROM `glpi_fqdns`
                WHERE `fqdn` $relation ";

      $fqdns_id_list = array();
      foreach ($DB->request($query) as $line) {
         $fqdns_id_list[] = $line['id'];
      }

      if (!$wildcard_search) {
         if (count($fqdns_id_list) != 1) {
            return -1;
         }
         return $fqdns_id_list[0];
      }

      return $fqdns_id_list;
   }


   /**
    * @param $ID id of the FQDN
    *
    * @return the FQDN of the element, or "" if invalid FQDN
   **/
   static function getFQDNFromID($ID) {

      $thisDomain = new self();
      if ($thisDomain->getFromDB($ID)) {
         return $thisDomain->getFQDN();
      }
      return "";
   }


   function getSearchOptions() {

      $tab                 = parent::getSearchOptions();

      $tab[11]['table']    = $this->getTable();
      $tab[11]['field']    = 'fqdn';
      $tab[11]['name']     = __('FQDN');
      $tab[11]['datatype'] = 'string';

      return $tab;
   }


   /**
    * Check FQDN Validity
    *
    * @param $fqdn the FQDN to check
    *
    * @return true if the FQDN is valid
   **/
   static function checkFQDN($fqdn) {

      // The FQDN must be compose of several labels separated by dots '.'
      $labels = explode("." , $fqdn);
      foreach ($labels as $label) {
         if (($label == "") || (!FQDNLabel::checkFQDNLabel($label))) {
            return false;
         }
      }
      return true;
   }
}
?>
