<?php
function filehandler()
{
	global $UTIL_DIR, $task, $_FILES, $FILE_MAX_SIZE, $DATA_DIR;
	global $DEFAULT_MIME_TYPE, $MIME_TYPES;
	
	include_once($UTIL_DIR . "/files.php");

	$str = "";

	$files = new Files($DATA_DIR . "/files.xml");

	if($task == "upload") {

		if(is_uploaded_file($_FILES['userfile']['tmp_name'])) {
			$name = $filename;
			if(!$filename) $name = $_FILES['userfile']['name'];
			if(filesize($_FILES['userfile']['tmp_name']) <= $FILE_MAX_SIZE) $files->newFile($_FILES['userfile']['tmp_name'], $name);
			else $str .= "File is too big " . sprintf("%.0f", filesize($_FILES['userfile']['tmp_name'])/1024).
						 "kb, max file size: " . sprintf("%.0f", $FILE_MAX_SIZE/1024) . "kb.";
			krsort($files->files);
		}
	}
	
	if($task == "delete" && $fid) {
		$files->deleteFile($fid);
	}
	
	$str .= "<form class=\"files\" enctype=\"multipart/form-data\" action=\"?mode=filehandler&amp;task=upload\" method=\"post\">";
  $str .= "<p>File: <input name=\"userfile\" type=\"file\"></p>\n";
  $str .= "<p>Use alternative filename (leave empty to use original filename):<input name=\"filename\" value=\"".$description."\"/></p>\n";
  $str .= "<p><button type=\"submit\">Add file</button></p>";
	$str .= "</form>";

	$str .= $files->show();


	return $str;
}