classes/class.ilFileDataGroup.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2001 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. |
        +-----------------------------------------------------------------------------+
*/


require_once("classes/class.ilFileData.php");
                                
define('GROUP_PATH','group');

class ilFileDataGroup extends ilFileData
{
        var $group_path;

        var $group_obj = null;

        function ilFileDataGroup($group_obj)
        {
                global $ilias;

                parent::ilFileData();

                $this->ilias =& $ilias;
                $this->group_path = parent::getPath()."/".GROUP_PATH;
                $this->group_obj =& $group_obj;

                // IF DIRECTORY ISN'T CREATED CREATE IT
                if(!$this->__checkPath())
                {
                        $this->__initDirectory();
                }
                // Check import dir
                #$this->__checkImportPath();
        }

        // METHODS FOR XML IMPORT OF Groups
        function createImportFile($a_tmp_name,$a_name)
        {
                ilUtil::moveUploadedFile($a_tmp_name,
                                                                 $a_name, 
                                                                 $this->getGroupPath().'/import/'.$a_name);
                $this->import_file_info = pathinfo($this->getGroupPath().'/import/'.$a_name);

        }

        function unpackImportFile()
        {
                return ilUtil::unzip($this->getGroupPath().'/import/'.$this->import_file_info['basename']);
        }

        function validateImportFile()
        {
                if(!is_dir($this->getGroupPath().'/import/'.basename($this->import_file_info['basename'],'.zip')))
                {
                        return false;
                }
                if(!file_exists($this->getGroupPath().'/import'.
                                                '/'.basename($this->import_file_info['basename'],'.zip').
                                                '/'.basename($this->import_file_info['basename'],'.zip').'.xml'))
                {
                        return false;
                }
                return true;
        }

        function getImportFile()
        {
                return $this->getGroupPath().'/import'
                        .'/'.basename($this->import_file_info['basename'],'.zip')
                        .'/'.basename($this->import_file_info['basename'],'.zip').'.xml';
        }



        // Export functions
        function getExportFile($a_rel_name)
        {
                if(@file_exists($abs = $this->group_path.'/grp_'.$this->group_obj->getId().'/'.$a_rel_name))
                {
                        return $abs;
                }
                return false;
        }

        function getExportFiles()
        {
                $path = $this->getGroupPath().'/grp_'.$this->group_obj->getId();

                
                if(!@file_exists($path) or !is_readable($path))
                {
                        return array();
                }
                $dp = dir($path);

                // Get file
                while($entry = $dp->read())
                {
                        if ($entry != "." and
                                $entry != ".." and
                                substr($entry, -4) == ".zip" and
                                ereg("^[0-9]{10}_{2}[0-9]+_{2}(grp_)*[0-9]+\.zip\$", $entry))
                                {
                                        $files[$entry] = array("file" => $entry,
                                                                                   "size" => filesize($path."/".$entry),
                                                                                   'type' => "XML");
                                }
                }
                return $files ? $files : array();
        }

        function deleteFile($a_rel_name)
        {
                if(@file_exists($abs = $this->group_path.'/grp_'.$this->group_obj->getId().'/'.$a_rel_name))
                {
                        @unlink($abs);

                        return true;
                }
                return false;
        }

        function deleteDirectory($a_rel_dir)
        {
                if(!@file_exists($abs = $this->getGroupPath().'/grp_'.$this->group_obj->getId().'/'.$a_rel_dir))
                {
                        return false;
                }
                ilUtil::delDir($abs);

                return true;
        }

        // Static
        function _deleteAll($a_obj_id)
        {
                ilUtil::delDir(CLIENT_DATA_DIR.'/'.GROUP_PATH.'/grp_'.$a_obj_id);

                return true;
        }

        function addGroupDirectory()
        {
                if(@file_exists($this->getGroupPath().'/grp_'.$this->group_obj->getId()))
                {
                        return false;
                }
                ilUtil::makeDir($this->getGroupPath().'/grp_'.$this->group_obj->getId());

                return true;
        }

        function addImportDirectory()
        {
                if(@file_exists($this->getGroupPath().'/import'))
                {
                        return false;
                }
                ilUtil::makeDir($this->getGroupPath().'/import');

                return true;
        }               
                

        function addDirectory($a_rel_name)
        {
                if(@file_exists($this->getGroupPath().'/grp_'.$this->group_obj->getId().'/'.$a_rel_name))
                {
                        return false;
                }
                ilUtil::makeDir($this->getGroupPath().'/grp_'.$this->group_obj->getId().'/'.$a_rel_name);

                return true;
        }

        function writeToFile($a_data,$a_rel_name)
        {
                if(!$fp = @fopen($this->getGroupPath().'/grp_'.$this->group_obj->getId().'/'.$a_rel_name,'w+'))
                {
                        die("Cannot open file: ".$this->getGroupPath().'/'.$a_rel_name);
                }
                @fwrite($fp,$a_data);

                return true;
        }

        function zipFile($a_rel_name,$a_zip_name)
        {
                ilUtil::zip($this->getGroupPath().'/grp_'.$this->group_obj->getId().'/'.$a_rel_name,
                                        $this->getGroupPath().'/grp_'.$this->group_obj->getId().'/'.$a_zip_name);

                return true;
        }


        function getGroupPath()
        {
                return $this->group_path;
        }


        // PRIVATE METHODS
        function __checkPath()
        {
                if(!@file_exists($this->getGroupPath()))
                {
                        return false;
                }
                        
                $this->__checkReadWrite();

                return true;
        }
        
        function __checkReadWrite()
        {
                if(is_writable($this->group_path) && is_readable($this->group_path))
                {
                        return true;
                }
                else
                {
                        $this->ilias->raiseError("Group directory is not readable/writable by webserver",$this->ilias->error_obj->FATAL);
                }
        }
        function __initDirectory()
        {
                if(is_writable($this->getPath()))
                {
                        ilUtil::makeDir($this->getPath().'/'.GROUP_PATH);
                        $this->group_path = $this->getPath().'/'.GROUP_PATH;
                        
                        return true;
                }
                return false;
        }
}