helper.php

<?php
/**
 * ownCloud
 *
 * @author Frank Karlitschek
 * @author Jakob Sack
 * @copyright 2012 Frank Karlitschek frank@owncloud.org
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library 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 AFFERO GENERAL PUBLIC LICENSE for more details.
 *
 * You should have received a copy of the GNU Affero General Public
 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

/**
 * Collection of useful functions
 */
class OC_Helper {
	private static $mimetypes=array();
	private static $tmpFiles=array();
	private static $mimetypeIcons = array();

	/**
	 * @brief Creates an url using a defined route
	 * @param $route
	 * @param array $parameters
	 * @return
	 * @internal param array $args with param=>value, will be appended to the returned url
	 * @returns the url
	 *
	 * Returns a url to the given app and file.
	 */
	public static function linkToRoute( $route, $parameters = array() ) {
		$urlLinkTo = OC::getRouter()->generate($route, $parameters);
		return $urlLinkTo;
	}

	/**
	 * @brief Creates an url
	 * @param string $app app
	 * @param string $file file
	 * @param array $args array with param=>value, will be appended to the returned url
	 * 	The value of $args will be urlencoded
	 * @return string the url
	 *
	 * Returns a url to the given app and file.
	 */
	public static function linkTo( $app, $file, $args = array() ) {
		if( $app != '' ) {
			$app_path = OC_App::getAppPath($app);
			// Check if the app is in the app folder
			if( $app_path && file_exists( $app_path.'/'.$file )) {
				if(substr($file, -3) == 'php' || substr($file, -3) == 'css') {
					$urlLinkTo =  OC::$WEBROOT . '/index.php/apps/' . $app;
					$urlLinkTo .= ($file!='index.php') ? '/' . $file : '';
				}else{
					$urlLinkTo =  OC_App::getAppWebPath($app) . '/' . $file;
				}
			}
			else{
				$urlLinkTo =  OC::$WEBROOT . '/' . $app . '/' . $file;