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<?php # $Id: fileManage.lib.php 10083 2006-11-21 19:43:29Z pcool $
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/* vim: set expandtab tabstop=4 shiftwidth=4:
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===============================================================================
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Dokeos - elearning and course management software
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Copyright (c) 2004 Dokeos S.A.
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Copyright (c) 2003 Ghent University (UGent)
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Copyright (c) 2001 Universite catholique de Louvain (UCL)
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more copyrights held by individual contributors
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For a full list of contributors, see "credits.txt".
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The full license can be read in "license.txt".
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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See the GNU General Public License for more details.
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Contact: Dokeos, 181 rue Royale, B-1000 Brussels, Belgium, info@dokeos.com
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===============================================================================
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*/
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/**
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==============================================================================
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* This is the file manage library for Dokeos.
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* Include/require it in your code to use its functionality.
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*
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* @package dokeos.library
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==============================================================================
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*/
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/**
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* Update the file or directory path in the document db document table
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*
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* @author - Hugues Peeters <peeters@ipm.ucl.ac.be>
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* @param - action (string) - action type require : 'delete' or 'update'
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* @param - oldPath (string) - old path info stored to change
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* @param - newPath (string) - new path info to substitute
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* @desc Update the file or directory path in the document db document table
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*
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*/
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function update_db_info($action, $oldPath, $newPath="")
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{
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global $dbTable; // table 'document' // RH: see below
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/* DELETE */
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if ($action == "delete")
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{
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/* // RH: metadata, update 2004/08/23
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these two lines replaced by new code below:
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$query = "DELETE FROM `$dbTable`
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WHERE path='".$oldPath."' OR path LIKE '".$oldPath."/%'";
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*/
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$to_delete = "WHERE path='".$oldPath."' OR path LIKE '".$oldPath."/%'";
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$query = "DELETE FROM $dbTable " . $to_delete;
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$result = api_sql_query("SELECT id FROM $dbTable " . $to_delete);
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if (mysql_num_rows($result))
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{
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require_once(api_get_path(INCLUDE_PATH) . "../metadata/md_funcs.php");
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$mdStore = new mdstore(TRUE); // create if needed
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$mdType = (substr($dbTable, -13) == 'scormdocument') ?
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'Scorm' : 'Document';
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while ($row = mysql_fetch_array($result))
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{
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$eid = $mdType . '.' . $row['id'];
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$mdStore->mds_delete($eid);
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$mdStore->mds_delete_offspring($eid);
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}
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}
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}
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/* UPDATE */
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if ($action == "update")
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{
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//Display::display_normal_message("newPath = $newPath");
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if ($newPath[0] == ".") $newPath = substr($newPath,1);
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$newPath = str_replace('//','/',$newPath);
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//Display::display_normal_message("character 0 = " . $newPath[0] . " 1=" . $newPath[1]);
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//Display::display_normal_message("newPath = $newPath");
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//older broken version
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//$query = "UPDATE `$dbTable`
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//SET path = CONCAT('".$newPath."', SUBSTRING(path, LENGTH('".$oldPath."')+1) )
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//WHERE path = '".$oldPath."' OR path LIKE '".$oldPath."/%'";
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//attempt to update - tested & working for root dir
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$query = "UPDATE $dbTable
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SET path = CONCAT('".$newPath."', SUBSTRING(path, LENGTH('".$oldPath."')+1) )
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WHERE path = '".$oldPath."' OR path LIKE '".$oldPath."/%'";
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}
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//echo $query;
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//error_log($query,0);
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api_sql_query($query,__FILE__,__LINE__);
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//Display::display_normal_message("query = $query");
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}
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//------------------------------------------------------------------------------
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/**
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* Cheks a file or a directory actually exist at this location
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*
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* @author - Hugues Peeters <peeters@ipm.ucl.ac.be>
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* @param - filePath (string) - path of the presume existing file or dir
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* @return - boolean TRUE if the file or the directory exists
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* boolean FALSE otherwise.
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*/
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function check_name_exist($filePath)
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{
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clearstatcache();
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$save_dir = getcwd();
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chdir ( dirname($filePath) );
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$fileName = basename ($filePath);
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if (file_exists( $fileName ))
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{
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chdir($save_dir);
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return true;
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}
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else
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{
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chdir($save_dir);
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return false;
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}
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}
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/**
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* Delete a file or a directory
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*
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* @author - Hugues Peeters
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* @param - $file (String) - the path of file or directory to delete
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* @return - bolean - true if the delete succeed
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* bolean - false otherwise.
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* @see - delete() uses check_name_exist() and removeDir() functions
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*/
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function my_delete($file)
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{
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if ( check_name_exist($file) )
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{
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if ( is_file($file) ) // FILE CASE
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{
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unlink($file);
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return true;
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}
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elseif ( is_dir($file) ) // DIRECTORY CASE
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{
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removeDir($file);
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return true;
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}
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}
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else
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{
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return false; // no file or directory to delete
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}
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}
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//------------------------------------------------------------------------------
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/**
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* removes a directory recursively
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*
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* @returns true if OK, otherwise false
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*
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* @author Amary <MasterNES@aol.com> (from Nexen.net)
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* @author Olivier Brouckaert <oli.brouckaert@skynet.be>
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*
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* @param string $dir directory to remove
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*/
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function removeDir($dir)
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{
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if(!@$opendir = opendir($dir))
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{
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return false;
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}
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while($readdir = readdir($opendir))
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{
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if($readdir != '..' && $readdir != '.')
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{
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if(is_file($dir.'/'.$readdir))
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{
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if(!@unlink($dir.'/'.$readdir))
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{
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return false;
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}
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}
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elseif(is_dir($dir.'/'.$readdir))
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{
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if(!removeDir($dir.'/'.$readdir))
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{
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return false;
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}
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}
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}
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}
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closedir($opendir);
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if(!@rmdir($dir))
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{
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return false;
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}
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return true;
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}
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//------------------------------------------------------------------------------
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/**
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* Rename a file or a directory
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*
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* @author - Hugues Peeters <peeters@ipm.ucl.ac.be>
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* @param - $filePath (string) - complete path of the file or the directory
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* @param - $newFileName (string) - new name for the file or the directory
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* @return - boolean - true if succeed
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* - boolean - false otherwise
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* @see - rename() uses the check_name_exist() and php2phps() functions
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*/
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function my_rename($filePath, $newFileName)
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{
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$save_dir = getcwd();
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$path = dirname($filePath);
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$oldFileName = basename($filePath);
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$newFileName = replace_dangerous_char($newFileName);
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// If no extension, take the old one
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if ((strpos($newFileName, '.') === FALSE)
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&& ($dotpos = strrpos($oldFileName, '.')))
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{
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$newFileName .= substr($oldFileName, $dotpos);
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}
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// Note: still possible: 'xx.yy' -rename-> '.yy' -rename-> 'zz'
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// This is useful for folder names, where otherwise '.' would be sticky
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// Extension PHP is not allowed, change to PHPS
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$newFileName = php2phps($newFileName);
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if ($newFileName == $oldFileName) return $oldFileName;
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if (strtolower($newFileName) != strtolower($oldFileName) && check_name_exist($path."/".$newFileName)) return false;
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// On a Windows server, it would be better not to do the above check
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// because it succeeds for some new names resembling the old name.
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// But on Unix/Linux the check must be done because rename overwrites.
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chdir($path);
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$res = rename($oldFileName, $newFileName) ? $newFileName : false;
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chdir($save_dir);
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return $res;
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}
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//------------------------------------------------------------------------------
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/**
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* Move a file or a directory to an other area
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*
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* @author - Hugues Peeters <peeters@ipm.ucl.ac.be>
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* @param - $source (String) - the path of file or directory to move
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* @param - $target (String) - the path of the new area
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* @return - bolean - true if the move succeed
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* bolean - false otherwise.
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* @see - move() uses check_name_exist() and copyDirTo() functions
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*/
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function move($source, $target)
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{
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if ( check_name_exist($source) )
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{
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$fileName = basename($source);
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if ( check_name_exist($target."/".$fileName) )
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{
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return false;
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}
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else
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{ /* File case */
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if ( is_file($source) )
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{
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copy($source , $target."/".$fileName);
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unlink($source);
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return true;
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}
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/* Directory case */
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elseif (is_dir($source))
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{
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// check to not copy the directory inside itself
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if (ereg("^".$source."/", $target."/"))
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{
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return false;
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}
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else
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{
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copyDirTo($source, $target);
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return true;
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}
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}
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}
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}
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else
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{
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return false;
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}
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}
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//------------------------------------------------------------------------------
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/**
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* Move a directory and its content to an other area
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*
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* @author - Hugues Peeters <peeters@ipm.ucl.ac.be>
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* @param - $origDirPath (String) - the path of the directory to move
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* @param - $destination (String) - the path of the new area
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* @return - no return !!
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*/
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function copyDirTo($origDirPath, $destination, $move=true)
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{
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$save_dir=getcwd();
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// extract directory name - create it at destination - update destination trail
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$dirName = basename($origDirPath);
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mkdir ($destination."/".$dirName, 0775);
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$destinationTrail = $destination."/".$dirName;
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chdir ($origDirPath) ;
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$handle = opendir($origDirPath);
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while ($element = readdir($handle) )
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{
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if ( $element == "." || $element == "..")
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{
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continue; // skip the current and parent directories
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}
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elseif ( is_file($element) )
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{
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copy($element, $destinationTrail."/".$element);
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if($move)
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{
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unlink($element) ;
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}
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}
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elseif ( is_dir($element) )
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{
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$dirToCopy[] = $origDirPath."/".$element;
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}
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}
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closedir($handle) ;
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if ( sizeof($dirToCopy) > 0)
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{
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foreach($dirToCopy as $thisDir)
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{
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copyDirTo($thisDir, $destinationTrail, $move); // recursivity
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}
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}
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if($move)
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{
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rmdir ($origDirPath) ;
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}
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chdir($save_dir);
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}
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//------------------------------------------------------------------------------
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/* NOTE: These functions batch is used to automatically build HTML forms
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* with a list of the directories contained on the course Directory.
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*
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* From a thechnical point of view, form_dir_lists calls sort_dir wich calls index_dir
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*/
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/**
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* Indexes all the directories and subdirectories
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* contented in a given directory
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*
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* @author - Hugues Peeters <peeters@ipm.ucl.ac.be>
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* @param - path (string) - directory path of the one to index
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* @return - an array containing the path of all the subdirectories
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*/
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function index_dir($path)
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{
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$save_dir = getcwd();
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chdir($path);
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$handle = opendir($path);
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// reads directory content end record subdirectoies names in $dir_array
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while ($element = readdir($handle) )
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{
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if ( $element == "." || $element == "..") continue; // skip the current and parent directories
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if ( is_dir($element) ) $dirArray[] = $path."/".$element;
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}
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closedir($handle) ;
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// recursive operation if subdirectories exist
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$dirNumber = sizeof($dirArray);
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if ( $dirNumber > 0 )
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{
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for ($i = 0 ; $i < $dirNumber ; $i++ )
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{
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$subDirArray = index_dir( $dirArray[$i] ) ; // function recursivity
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$dirArray = array_merge( (array)$dirArray , (array)$subDirArray ); // data merge
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}
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}
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chdir($save_dir) ;
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return $dirArray ;
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}
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/**
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* Indexes all the directories and subdirectories
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* contented in a given directory, and sort them alphabetically
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*
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* @author - Hugues Peeters <peeters@ipm.ucl.ac.be>
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* @param - path (string) - directory path of the one to index
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* @return - an array containing the path of all the subdirectories sorted
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* false, if there is no directory
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* @see - index_and_sort_dir uses the index_dir() function
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*/
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function index_and_sort_dir($path)
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{
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$dir_list = index_dir($path);
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if ($dir_list)
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{
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sort($dir_list);
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return $dir_list;
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}
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else
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{
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return false;
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}
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}
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/**
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* build an html form listing all directories of a given directory
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*
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*/
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function form_dir_list($sourceType, $sourceComponent, $command, $baseWorkDir)
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{
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$dirList = index_and_sort_dir($baseWorkDir);
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$dialogBox .= "<form action=\"".$_SERVER['PHP_SELF']."\" method=\"post\">\n" ;
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|
|
$dialogBox .= "<input type=\"hidden\" name=\"".$sourceType."\" value=\"".$sourceComponent."\">\n" ;
|
|
|
$dialogBox .= get_lang('Move').' '.$sourceComponent.' '.get_lang('To');
|
|
|
$dialogBox .= "<select name=\"".$command."\">\n" ;
|
|
|
$dialogBox .= "<option value=\"\" style=\"color:#999999\">".get_lang('Root')."\n";
|
|
|
|
|
|
$bwdLen = strlen($baseWorkDir) ; // base directories lenght, used under
|
|
|
|
|
|
/* build html form inputs */
|
|
|
|
|
|
if ($dirList)
|
|
|
{
|
|
|
while (list( , $pathValue) = each($dirList) )
|
|
|
{
|
|
|
|
|
|
$pathValue = substr ( $pathValue , $bwdLen ); // truncate cunfidential informations confidentielles
|
|
|
$dirname = basename ($pathValue); // extract $pathValue directory name du nom
|
|
|
|
|
|
/* compute de the display tab */
|
|
|
|
|
|
$tab = ""; // $tab reinitialisation
|
|
|
$depth = substr_count($pathValue, "/"); // The number of nombre '/' indicates the directory deepness
|
|
|
|
|
|
for ($h=0; $h<$depth; $h++)
|
|
|
{
|
|
|
$tab .= "  ";
|
|
|
}
|
|
|
$dialogBox .= "<option value=\"$pathValue\">$tab>$dirname\n";
|
|
|
}
|
|
|
}
|
|
|
|
|
|
$dialogBox .= "</select>\n";
|
|
|
$dialogBox .= "<input type=\"submit\" value=\"".get_lang('Ok')."\">";
|
|
|
$dialogBox .= "</form>\n";
|
|
|
|
|
|
return $dialogBox;
|
|
|
}
|
|
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
|
|
/**
|
|
|
* to create missing directory in a gived path
|
|
|
*
|
|
|
* @returns a resource identifier or FALSE if the query was not executed correctly.
|
|
|
* @author KilerCris@Mail.com original function from php manual
|
|
|
* @author Christophe Gesch<EFBFBD> gesche@ipm.ucl.ac.be Claroline Team
|
|
|
* @since 28-Aug-2001 09:12
|
|
|
* @param sting $path wanted path
|
|
|
* @param boolean $verbose fix if comments must be printed
|
|
|
* @param string $mode fix if chmod is same of parent or default
|
|
|
* @global string $langCreatedIn string to say "create in"
|
|
|
*/
|
|
|
function mkpath($path, $verbose = false, $mode = "herit")
|
|
|
{
|
|
|
global $langCreatedIn, $_configuration;
|
|
|
|
|
|
$path=str_replace("/","\\",$path);
|
|
|
$dirs=explode("\\",$path);
|
|
|
|
|
|
$path=$dirs[0];
|
|
|
|
|
|
if($verbose)
|
|
|
{
|
|
|
echo "<UL>";
|
|
|
}
|
|
|
|
|
|
for($i=1;$i < sizeof($dirs);$i++)
|
|
|
{
|
|
|
$path.='/'.$dirs[$i];
|
|
|
|
|
|
if(ereg('^'.$path,$_configuration['root_sys']) && strlen($path) < strlen($_configuration['root_sys']))
|
|
|
{
|
|
|
continue;
|
|
|
}
|
|
|
|
|
|
if(!is_dir($path))
|
|
|
{
|
|
|
$ret=mkdir($path,0770);
|
|
|
|
|
|
if($ret)
|
|
|
{
|
|
|
if($verbose)
|
|
|
{
|
|
|
echo '<li><strong>'.basename($path).'</strong><br>'.$langCreatedIn.'<br><strong>'.realpath($path.'/..').'</strong></li>';
|
|
|
}
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
if($verbose)
|
|
|
{
|
|
|
echo '</UL>error : '.$path.' not created';
|
|
|
}
|
|
|
|
|
|
$ret=false;
|
|
|
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
if($verbose)
|
|
|
{
|
|
|
echo '</UL>';
|
|
|
}
|
|
|
|
|
|
return $ret;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* to extract the extention of the filename
|
|
|
*
|
|
|
* @returns array
|
|
|
* @param string $filename filename
|
|
|
*/
|
|
|
function getextension($filename)
|
|
|
{
|
|
|
$bouts = explode(".", $filename);
|
|
|
return array(array_pop($bouts), implode(".", $bouts));
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* to compute the size of the directory
|
|
|
*
|
|
|
* @returns integer size
|
|
|
* @param string $path path to size
|
|
|
* @param boolean $recursive if true , include subdir in total
|
|
|
*/
|
|
|
function dirsize($root,$recursive=true)
|
|
|
{
|
|
|
$dir=@opendir($root);
|
|
|
|
|
|
$size=0;
|
|
|
|
|
|
while($file=@readdir($dir))
|
|
|
{
|
|
|
if(!in_array($file,array('.','..')))
|
|
|
{
|
|
|
if(is_dir($root.'/'.$file))
|
|
|
{
|
|
|
$size+=$recursive?dirsize($root.'/'.$file):0;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
$size+=@filesize($root.'/'.$file);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
@closedir($dir);
|
|
|
|
|
|
return $size;
|
|
|
}
|
|
|
|
|
|
/*
|
|
|
===============================================================
|
|
|
CLASS FileManager
|
|
|
===============================================================
|
|
|
*/
|
|
|
|
|
|
/**
|
|
|
This class contains functions that you can access statically.
|
|
|
|
|
|
FileManager::list_all_directories($path)
|
|
|
FileManager::list_all_files($dir_array)
|
|
|
FileManager::compat_load_file($file_name)
|
|
|
FileManager::set_default_settings($upload_path, $filename, $filetype="file", $glued_table, $default_visibility='v')
|
|
|
|
|
|
@author Roan Embrechts
|
|
|
@version 1.1, July 2004
|
|
|
*/
|
|
|
class FileManager
|
|
|
{
|
|
|
|
|
|
/**
|
|
|
---------------------------------------------------------------
|
|
|
Returns a list of all directories, except the base dir,
|
|
|
of the current course. This function uses recursion.
|
|
|
|
|
|
Convention: the parameter $path does not end with a slash.
|
|
|
|
|
|
@author Roan Embrechts
|
|
|
@version 1.0.1
|
|
|
---------------------------------------------------------------
|
|
|
*/
|
|
|
function list_all_directories($path)
|
|
|
{
|
|
|
$save_dir = getcwd();
|
|
|
chdir($path);
|
|
|
$handle = opendir($path);
|
|
|
while ($element = readdir($handle) )
|
|
|
{
|
|
|
if ( $element == "." || $element == "..") continue; // skip the current and parent directories
|
|
|
if ( is_dir($element) )
|
|
|
{
|
|
|
$dirArray[] = $path."/".$element;
|
|
|
}
|
|
|
|
|
|
}
|
|
|
closedir($handle) ;
|
|
|
// recursive operation if subdirectories exist
|
|
|
$dirNumber = sizeof($dirArray);
|
|
|
if ( $dirNumber > 0 )
|
|
|
{
|
|
|
for ($i = 0 ; $i < $dirNumber ; $i++ )
|
|
|
{
|
|
|
$subDirArray = FileManager::list_all_directories( $dirArray[$i] ) ; // function recursivity
|
|
|
$dirArray = array_merge( $dirArray , $subDirArray ) ; // data merge
|
|
|
}
|
|
|
}
|
|
|
$resultArray = $dirArray;
|
|
|
chdir($save_dir) ;
|
|
|
return $resultArray ;
|
|
|
}
|
|
|
|
|
|
|
|
|
/**
|
|
|
===============================================================
|
|
|
This function receives a list of directories.
|
|
|
It returns a list of all files in these directories
|
|
|
|
|
|
@author Roan Embrechts
|
|
|
@version 1.0
|
|
|
===============================================================
|
|
|
*/
|
|
|
function list_all_files($dirArray)
|
|
|
{
|
|
|
$save_dir = getcwd();
|
|
|
foreach ($dirArray as $directory)
|
|
|
{
|
|
|
chdir($directory);
|
|
|
$handle = opendir($directory);
|
|
|
|
|
|
while ($element = readdir($handle) )
|
|
|
{
|
|
|
if ( $element == "." || $element == ".." || $element == '.htaccess') continue; // skip the current and parent directories
|
|
|
if ( ! is_dir($element) )
|
|
|
{
|
|
|
$elementArray[] = $directory."/".$element;
|
|
|
}
|
|
|
}
|
|
|
closedir($handle) ;
|
|
|
chdir("..") ;
|
|
|
}
|
|
|
chdir($save_dir);
|
|
|
return $elementArray;
|
|
|
}
|
|
|
|
|
|
|
|
|
/**
|
|
|
Load contents of file $filename into memory
|
|
|
and return them as a string.
|
|
|
Function kept for compatibility with older PHP versions.
|
|
|
Function is binary safe (is needed on Windows)
|
|
|
*/
|
|
|
function compat_load_file($file_name)
|
|
|
{
|
|
|
$fp = fopen($file_name, "rb");
|
|
|
$buffer = fread ($fp, filesize ($file_name));
|
|
|
fclose ($fp);
|
|
|
//api_display_debug_info(htmlentities($buffer));
|
|
|
return $buffer;
|
|
|
}
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Adds file/folder to document table in database
|
|
|
* improvement from set_default_settings (see below):
|
|
|
* take all info from function parameters
|
|
|
* no global variables needed
|
|
|
*
|
|
|
* NOTE $glued_table should already have backticks around it
|
|
|
* (get it from the database library, and it is done automatically)
|
|
|
*
|
|
|
* @param path, filename, filetype,
|
|
|
$glued_table, default_visibility
|
|
|
|
|
|
* @action Adds an entry to the document table with the default settings.
|
|
|
* @author Olivier Cauberghe <olivier.cauberghe@ugent.be>
|
|
|
* @author Roan Embrechts
|
|
|
* @version 1.2
|
|
|
*/
|
|
|
function set_default_settings($upload_path, $filename, $filetype="file", $glued_table, $default_visibility='v')
|
|
|
{
|
|
|
if (!$default_visibility) $default_visibility="v";
|
|
|
|
|
|
//make sure path is not wrongly formed
|
|
|
if( strlen($upload_path) ) $upload_path = "/$upload_path";
|
|
|
else $upload_path = "";
|
|
|
|
|
|
$endchar=substr($filename,strlen($filename)-1,1);
|
|
|
if($endchar=="\\" || $endchar=="/")
|
|
|
{
|
|
|
$filename=substr($filename,0,strlen($filename)-1);
|
|
|
}
|
|
|
|
|
|
$full_file_name = $upload_path."/".$filename;
|
|
|
//$upload_path = str_replace("//", "/", $upload_path);
|
|
|
$full_file_name = str_replace("//", "/", $full_file_name);
|
|
|
|
|
|
$sql_query = "SELECT count(*) as number_existing FROM $glued_table WHERE path='$full_file_name'";
|
|
|
//api_display_debug_info($sql_query);
|
|
|
$sql_result = api_sql_query($sql_query,__FILE__,__LINE__);
|
|
|
$result = mysql_fetch_array($sql_result);
|
|
|
|
|
|
//determine which query to execute
|
|
|
if( $result["number_existing"] > 0 )
|
|
|
{
|
|
|
//entry exists, update
|
|
|
$query="UPDATE $glued_table SET path='$full_file_name',visibility='$default_visibility', filetype='$filetype' WHERE path='$full_file_name'";
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
//no entry exists, create new one
|
|
|
$query="INSERT INTO $glued_table (path,visibility,filetype) VALUES('$full_file_name','$default_visibility','$filetype')";
|
|
|
}
|
|
|
api_sql_query($query,__FILE__,__LINE__);
|
|
|
}
|
|
|
/**
|
|
|
* Like in Java, creates the directory named by this abstract pathname,
|
|
|
* including any necessary but nonexistent parent directories.
|
|
|
*
|
|
|
* @author Hugues Peeters <peeters@ipm.ucl.ac.be>
|
|
|
* @author Christophe Gesche <gesche@ipm.ucl.ac.be>
|
|
|
*
|
|
|
* @param string $path - path to create
|
|
|
* @param string $mode - directory permission (default is '777')
|
|
|
*
|
|
|
* @return boolean TRUE if succeeds FALSE otherwise
|
|
|
*/
|
|
|
function mkdirs($path, $mode = '0777')
|
|
|
{
|
|
|
if (file_exists($path))
|
|
|
{
|
|
|
return false;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
FileManager :: mkdirs(dirname($path), $mode);
|
|
|
return mkdir($path, $mode);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
} //end class FileManager
|
|
|
|
|
|
?>
|
