';
Display::display_error_message(get_lang('NotAllowedClickBack').'
'.get_lang('BackToPreviousPage').'
', false);
echo '';
exit;
}
//zip library for creation of the zipfile
include api_get_path(LIBRARY_PATH).'pclzip/pclzip.lib.php';
// We need this path to clean it out of the zip file
// I'm not using dirname as it gives too much problems (cfr.)
$remove_dir = ($path != '/') ? substr($path, 0, strlen($path) - strlen(basename($path))) : '/';
// Place to temporarily stash the zipfiles
$temp_zip_dir = $sys_course_path.$_course['path'].'/temp';
// Create the temp dir if it doesn't exist or do a cleanup befor creating the zipfile
if (!is_dir($temp_zip_dir)) {
mkdir($temp_zip_dir, api_get_permissions_for_new_directories());
}
// Cleanup: check the temp dir for old files and delete them
else {
$handle = opendir($temp_zip_dir);
while (false !== ($file = readdir($handle))) {
if ($file != '.' && $file != '..') {
// The "age" of the file in hours
$diff = (time() - filemtime("$temp_zip_dir/$file"))/60/60;
// Delete files older than 4 hours
if ($diff > 4) unlink("$temp_zip_dir/$file");
}
}
closedir($handle);
}
// Create zipfile of given directory
$temp_zip_file = $temp_zip_dir.'/'.md5(time()).'.zip';
$zip_folder = new PclZip($temp_zip_file);
$doc_table = Database::get_course_table(TABLE_DOCUMENT);
$prop_table = Database::get_course_table(TABLE_ITEM_PROPERTY);
// Put the files in the zip
// 2 possibilities: Admins get all files and folders in the selected folder (except for the deleted ones)
// Normal users get only visible files that are in visible folders
// Admins are allowed to download invisible files
if (is_allowed_to_edit()) {
// Folder we want to zip --> no longer used, deleted files are included too like this
//$what_to_zip = $sys_course_path.$_course['path'].'/document'.$path;
// Creation of the zipped folder
//$zip_folder->create($what_to_zip ,PCLZIP_OPT_REMOVE_PATH, $sys_course_path.$_course['path'].'/document'.$remove_dir );
// Set the path that will be used in the query
if ($path == '/') {
$querypath = ''; // To prevent ...path LIKE '//%'... in query
} else {
$querypath = $path;
}
// Search for all files that are not deleted => visibility != 2
$query = Database::query("SELECT path FROM $doc_table AS docs,$prop_table AS props WHERE props.tool='".TOOL_DOCUMENT."' AND docs.id=props.ref AND docs.path LIKE '".$querypath."/%' AND docs.filetype='file' AND props.visibility<>'2' AND props.to_group_id=".$to_group_id."");
// Add tem to the zip file
while ($not_deleted_file = Database::fetch_assoc($query)) {
$zip_folder->add($sys_course_path.$_course['path'].'/document'.$not_deleted_file['path'], PCLZIP_OPT_REMOVE_PATH, $sys_course_path.$_course['path'].'/document'.$remove_dir);
}
}
// For other users, we need to create a zipfile with only visible files and folders
else {
if ($path == '/') {
$querypath = ''; // To prevent ...path LIKE '//%'... in query
} else {
$querypath = $path;
}
// A big problem: Visible files that are in a hidden folder are included when we do a query for visiblity='v'
// So... I do it in a couple of steps:
// 1st: Get all files that are visible in the given path
$query = Database::query("SELECT path FROM $doc_table AS docs,$prop_table AS props WHERE props.tool='".TOOL_DOCUMENT."' AND docs.id=props.ref AND docs.path LIKE '".$querypath."/%' AND props.visibility='1' AND docs.filetype='file' AND props.to_group_id=".$to_group_id);
// Add them to an array
while ($all_visible_files = Database::fetch_assoc($query)) {
$all_visible_files_path[] = $all_visible_files['path'];
//echo "visible files: ".$sys_course_path.$_course['path'].'/document'.$all_visible_files['path']."
";
}
//echo('');
//print_r($all_visible_files_path);
//echo('');
// 2nd: Get all folders that are invisible in the given path
$query2 = Database::query("SELECT path FROM $doc_table AS docs,$prop_table AS props WHERE props.tool='".TOOL_DOCUMENT."' AND docs.id=props.ref AND docs.path LIKE '".$querypath."/%' AND props.visibility<>'1' AND docs.filetype='folder'");
// If we get invisible folders, we have to filter out these results from all visible files we found
if (Database::num_rows($query2) > 0) {
// Add tem to an array
while ($invisible_folders = Database::fetch_assoc($query2)) {
//3rd: Get all files that are in the found invisible folder (these are "invisible" too)
//echo "
invisible folders: ".$sys_course_path.$_course['path'].'/document'.$invisible_folders['path'].'
';
$query3 = Database::query("SELECT path FROM $doc_table AS docs,$prop_table AS props WHERE props.tool='".TOOL_DOCUMENT."' AND docs.id=props.ref AND docs.path LIKE '".$invisible_folders['path']."/%' AND docs.filetype='file' AND props.visibility='1'");
// Add tem to an array
while ($files_in_invisible_folder = Database::fetch_assoc($query3)) {
$files_in_invisible_folder_path[] = $files_in_invisible_folder['path'];
//echo '
files in invisible folders: '.$sys_course_path.$_course['path'].'/document'.$files_in_invisible_folder['path'].' id '.$files_in_invisible_folder['id'].'
';
}
}
// Compare the array with visible files and the array with files in invisible folders
// and keep the difference (= all visible files that are not in an invisible folder)
$files_for_zipfile = diff((array)$all_visible_files_path, (array)$files_in_invisible_folder_path);
}
// No invisible folders found, so all visible files can be added to the zipfile
else {
$files_for_zipfile = $all_visible_files_path;
}
// Add all files in our final array to the zipfile
//echo("path to remove from file ".$sys_course_path.$_course['path']."/document".$remove_dir.'
');
//echo('FILES FOR ZIP
');
//print_r($files_for_zipfile);
for ($i = 0; $i < count($files_for_zipfile); $i++) {
$zip_folder->add($sys_course_path.$_course['path'].'/document'.$files_for_zipfile[$i], PCLZIP_OPT_REMOVE_PATH, $sys_course_path.$_course['path'].'/document'.$remove_dir);
//echo $sys_course_path.$_course['path'].'/document'.$files_for_zipfile[$i].'
';
}
} // end for other users
//exit;
// Launch event
event_download(($path == '/') ? 'documents.zip (folder)' : basename($path).'.zip (folder)');
// Start download of created file
//send_file_to_client($temp_zip_file, basename(empty($_GET['id']) ? 'documents' : $_GET['id']).'.zip');
$name = ($path == '/') ? 'documents.zip' : basename($path).'.zip';
DocumentManager::file_send_for_download($temp_zip_file, true, $name);
@unlink($temp_zip_file);
exit;
/**
* Returns the difference between two arrays, as an array of those key/values
* Use this as array_diff doesn't give the
*
* @param array $arr1 first array
* @param array $arr2 second array
* @return difference between the two arrays
*/
function diff($arr1, $arr2) {
$res = array();
$r = 0;
foreach ($arr1 as & $av) {
if (!in_array($av, $arr2)) {
$res[$r] = $av;
$r++;
}
}
return $res;
}