nextcloud/lib/helper.php

189 lines
4.4 KiB
PHP

<?php
/**
* ownCloud
*
* @author Frank Karlitschek
* @author Jakob Sack
* @copyright 2010 Frank Karlitschek karlitschek@kde.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 {
/**
* @brief Creates an url
* @param $app app
* @param $file file
* @returns the url
*
* Returns a url to the given app and file.
*/
public static function linkTo( $app, $file ){
global $WEBROOT;
global $SERVERROOT;
if(!empty($app)) {
$app .= '/';
}
// Check if the app is in the app folder
if( file_exists( $SERVERROOT . '/apps/'. $app . $file )){
return $WEBROOT . '/apps/' . $app . $file;
}
return $WEBROOT . '/' . $app . $file;
}
/**
* @brief Creates path to an image
* @param $app app
* @param $image image name
* @returns the url
*
* Returns the path to the image.
*/
public static function imagePath( $app, $image ){
global $SERVERROOT;
global $WEBROOT;
// Check if the app is in the app folder
if( file_exists( "$SERVERROOT/apps/img/$app/$image" )){
return "$WEBROOT/apps/img/$app/$image";
}
return "$WEBROOT/$app/img/$image";
}
/**
* @brief get path to icon of mime type
* @param $mimetype mimetype
* @returns the url
*
* Returns the path to the image of this mime type.
*/
public static function mimetypeIcon( $mimetype ){
global $SERVERROOT;
global $WEBROOT;
// Replace slash with a minus
$mimetype = str_replace( "/", "-", $mimetype );
// Is it a dir?
if( $mimetype == "dir" ){
return "$WEBROOT/img/places/folder.png";
}
// Icon exists?
if( file_exists( "$SERVERROOT/img/mimetypes/$mimetype.png" )){
return "$WEBROOT/img/mimetypes/$mimetype.png";
}
else{
return "$WEBROOT/img/mimetypes/application-octet-stream.png";
}
}
/**
* @brief Make a human file size
* @param $bytes file size in bytes
* @returns a human readable file size
*
* Makes 2048 to 2 kB.
*/
public static function humanFileSize( $bytes ){
if( $bytes < 1024 ){
return "$bytes B";
}
$bytes = round( $bytes / 1024, 1 );
if( $bytes < 1024 ){
return "$bytes kB";
}
$bytes = round( $bytes / 1024, 1 );
if( $bytes < 1024 ){
return "$bytes MB";
}
// Wow, heavy duty for owncloud
$bytes = round( $bytes / 1024, 1 );
return "$bytes GB";
}
/**
* @brief Make a computer file size
* @param $str file size in a fancy format
* @returns a file size in bytes
*
* Makes 2kB to 2048.
*
* Inspired by: http://www.php.net/manual/en/function.filesize.php#92418
*/
public static function computerFileSize( $str ){
$bytes = 0;
$bytes_array = array(
'B' => 1,
'K' => 1024,
'KB' => 1024,
'MB' => 1024 * 1024,
'M' => 1024 * 1024,
'GB' => 1024 * 1024 * 1024,
'G' => 1024 * 1024 * 1024,
'TB' => 1024 * 1024 * 1024 * 1024,
'T' => 1024 * 1024 * 1024 * 1024,
'PB' => 1024 * 1024 * 1024 * 1024 * 1024,
'P' => 1024 * 1024 * 1024 * 1024 * 1024,
);
$bytes = floatval($str);
if (preg_match('#([KMGTP]?B?)$#si', $str, $matches) && !empty($bytes_array[$matches[1]])) {
$bytes *= $bytes_array[$matches[1]];
}
$bytes = intval(round($bytes, 2));
return $bytes;
}
/**
* @brief Recusive editing of file permissions
* @param $path path to file or folder
* @param $filemode unix style file permissions as integer
*
* Makes 2048 to 2 kB.
*/
function chmodr($path, $filemode) {
if (!is_dir($path))
return chmod($path, $filemode);
$dh = opendir($path);
while (($file = readdir($dh)) !== false) {
if($file != '.' && $file != '..') {
$fullpath = $path.'/'.$file;
if(is_link($fullpath))
return FALSE;
elseif(!is_dir($fullpath) && !chmod($fullpath, $filemode))
return FALSE;
elseif(!chmodr($fullpath, $filemode))
return FALSE;
}
}
closedir($dh);
if(chmod($path, $filemode))
return TRUE;
else
return FALSE;
}
}
?>