class.ilObjMediaCastAccess.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2006 ILIAS open source, University of Cologne            |
        |                                                                             |
        | This program 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.                      |
        |                                                                             |
        | This program 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 this program; if not, write to the Free Software                 |
        | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
        +-----------------------------------------------------------------------------+
*/

include_once("classes/class.ilObjectAccess.php");

class ilObjMediaCastAccess extends ilObjectAccess
{

        function _getCommands()
        {
                $commands = array
                (
                        array("permission" => "read", "cmd" => "listItems", "lang_var" => "show",
                                "default" => true),
                        array("permission" => "write", "cmd" => "editSettings", "lang_var" => "edit")
                );
                
                return $commands;
        }
        
        function _checkAccess($a_cmd, $a_permission, $a_ref_id, $a_obj_id, $a_user_id = "")
        {
                global $ilUser, $lng, $rbacsystem, $ilAccess;

                if ($a_user_id == "")
                {
                        $a_user_id = $ilUser->getId();
                }

                switch ($a_cmd)
                {
                        case "listItems":

                                if(!ilObjMediaCastAccess::_lookupOnline($a_obj_id)
                                        && !$rbacsystem->checkAccessOfUser($a_user_id,'write',$a_ref_id))
                                {
                                        $ilAccess->addInfoItem(IL_NO_OBJECT_ACCESS, $lng->txt("offline"));
                                        return false;
                                }
                                break;
                                
                        // for permission query feature
                        case "infoScreen":
                                if(!ilObjMediaCastAccess::_lookupOnline($a_obj_id))
                                {
                                        $ilAccess->addInfoItem(IL_NO_OBJECT_ACCESS, $lng->txt("offline"));
                                }
                                else
                                {
                                        $ilAccess->addInfoItem(IL_STATUS_MESSAGE, $lng->txt("online"));
                                }
                                break;

                }
                switch ($a_permission)
                {
                        case "read":
                        case "visible":
                                if (!ilObjMediaCastAccess::_lookupOnline($a_obj_id) &&
                                        (!$rbacsystem->checkAccessOfUser($a_user_id, 'write', $a_ref_id)))
                                {
                                        $ilAccess->addInfoItem(IL_NO_OBJECT_ACCESS, $lng->txt("offline"));
                                        return false;
                                }
                                break;
                }

                return true;
        }

        function _checkGoto($a_target)
        {
                global $ilAccess;
                
                $t_arr = explode("_", $a_target);

                if ($t_arr[0] != "mcst" || ((int) $t_arr[1]) <= 0)
                {
                        return false;
                }

                if ($ilAccess->checkAccess("read", "", $t_arr[1]))
                {
                        return true;
                }
                return false;
        }
        
        function _lookupOnline($a_id)
        {
                global $ilDB;

                $q = "SELECT * FROM il_media_cast_data WHERE id = ".$ilDB->quote($a_id);
                $mc_set = $ilDB->query($q);
                $mc_rec = $mc_set->fetchRow(DB_FETCHMODE_ASSOC);

                return $mc_rec["online"];
        }

        function _lookupPublicFiles($a_id)
        {
                global $ilDB;

                $q = "SELECT * FROM il_media_cast_data WHERE id = ".$ilDB->quote($a_id);
                $mc_set = $ilDB->query($q);
                $mc_rec = $mc_set->fetchRow(DB_FETCHMODE_ASSOC);

                return $mc_rec["public_files"];
        }

        //BEGIN DiskQuota: Get used disk space..
        function _getDiskSpaceUsed($a_id)
        {
                require_once('Modules/MediaCast/classes/class.ilObjMediaCast.php');
                require_once("./Services/News/classes/class.ilNewsItem.php");
                require_once("./Services/MediaObjects/classes/class.ilObjMediaObject.php");
                $obj = new ilObjMediaCast($a_id, false);
                $obj->read();
                $items = $obj->getItemsArray();
                $size = 0;
                foreach ($items as $item)
                {
                        $news_item = new ilNewsItem($item["id"]);
                        $news_item->read();
                        $mobId = $news_item->getMobId();
                        $size += ilUtil::dirsize(ilObjMediaObject::_getDirectory($mobId));
                }
                return $size;
        }
        function _getDiskSpaceUsedBy($user_id, $as_string = false)
        {
                global $ilDB, $lng;
                
                $q = "SELECT obj_id FROM object_data WHERE type = 'mcst' AND owner = $user_id";
                $us_set = $ilDB->query($q);
                $size = 0;
                $count = 0;
                while($us_rec = $us_set->fetchRow(DB_FETCHMODE_ASSOC))
                {
                        $size += ilObjMediaCastAccess::_getDiskSpaceUsed($us_rec["obj_id"]);
                        $count++;
                }
                
                require_once("./Modules/File/classes/class.ilObjFileAccess.php");
                return ($as_string) ? $count.' '.$lng->txt('obj_mcst').', '.ilObjFileAccess::_sizeToString($size) : $size;
        }
        //END DiskQuota: Get used disk space..
}

?>