ccfa2dd24c
Filled username field when oc_username is set repaired. Problems with "advanced settings" button in installation wizard fixed. CSS improved - login and installation now looks more clean. Request password link removed (email feature not implemented yet). Database radio button bugs removed. It is possible to have an empty database password, now ownCloud will support this "security issue". Ignore Mac OS X ".DSstore" files. Fade in/out of login button and remember checkbox removed due to some display errors.
324 lines
8.4 KiB
PHP
324 lines
8.4 KiB
PHP
<?php
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/**
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* ownCloud
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*
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* @author Frank Karlitschek
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* @author Jakob Sack
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* @copyright 2010 Frank Karlitschek karlitschek@kde.org
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
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*
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* You should have received a copy of the GNU Affero General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/**
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* Collection of useful functions
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*/
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class OC_Helper {
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/**
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* @brief Creates an url
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* @param $app app
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* @param $file file
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* @param $redirect_url redirect_url variable is appended to the URL
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* @returns the url
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*
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* Returns a url to the given app and file.
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*/
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public static function linkTo( $app, $file, $redirect_url=NULL, $absolute=false ){
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if( $app != '' ){
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$app .= '/';
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// Check if the app is in the app folder
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if( file_exists( OC::$SERVERROOT . '/apps/'. $app.$file )){
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$urlLinkTo = OC::$WEBROOT . '/apps/' . $app . $file;
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}
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else{
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$urlLinkTo = OC::$WEBROOT . '/' . $app . $file;
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}
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}
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else{
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if( file_exists( OC::$SERVERROOT . '/core/'. $file )){
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$urlLinkTo = OC::$WEBROOT . '/core/'.$file;
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}
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else{
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$urlLinkTo = OC::$WEBROOT . '/'.$file;
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}
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}
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if($absolute){
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// Checking if the request was made through HTTPS. The last in line is for IIS
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$protocol = isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS']) && ($_SERVER['HTTPS']!='off');
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$urlLinkTo = ($protocol?'https':'http') . '://' . $_SERVER['HTTP_HOST'] . $urlLinkTo;
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}
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if($redirect_url)
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return $urlLinkTo.'?redirect_url='.$redirect_url;
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else
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return $urlLinkTo;
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}
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/**
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* @brief Creates path to an image
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* @param $app app
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* @param $image image name
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* @returns the url
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*
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* Returns the path to the image.
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*/
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public static function imagePath( $app, $image ){
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// Check if the app is in the app folder
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if( file_exists( OC::$SERVERROOT."/apps/$app/img/$image" )){
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return OC::$WEBROOT."/apps/$app/img/$image";
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}
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elseif( !empty( $app )){
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return OC::$WEBROOT."/$app/img/$image";
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}
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else{
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return OC::$WEBROOT."/core/img/$image";
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}
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}
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/**
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* @brief get path to icon of file type
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* @param $mimetype mimetype
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* @returns the url
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*
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* Returns the path to the image of this file type.
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*/
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public static function mimetypeIcon( $mimetype ){
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// Replace slash with a minus
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$mimetype = str_replace( "/", "-", $mimetype );
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// Is it a dir?
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if( $mimetype == "dir" ){
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return OC::$WEBROOT."/core/img/places/folder.svg";
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}
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// Icon exists?
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if( file_exists( OC::$SERVERROOT."/core/img/filetypes/$mimetype.svg" )){
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return OC::$WEBROOT."/core/img/filetypes/$mimetype.svg";
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}
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//try only the first part of the filetype
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$mimetype=substr($mimetype,0,strpos($mimetype,'-'));
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if( file_exists( OC::$SERVERROOT."/core/img/filetypes/$mimetype.svg" )){
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return OC::$WEBROOT."/core/img/filetypes/$mimetype.svg";
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}
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else{
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return OC::$WEBROOT."/core/img/filetypes/file.svg";
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}
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}
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/**
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* @brief Make a human file size
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* @param $bytes file size in bytes
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* @returns a human readable file size
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*
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* Makes 2048 to 2 kB.
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*/
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public static function humanFileSize( $bytes ){
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if( $bytes < 1024 ){
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return "$bytes B";
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}
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$bytes = round( $bytes / 1024, 1 );
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if( $bytes < 1024 ){
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return "$bytes kB";
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}
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$bytes = round( $bytes / 1024, 1 );
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if( $bytes < 1024 ){
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return "$bytes MB";
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}
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// Wow, heavy duty for owncloud
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$bytes = round( $bytes / 1024, 1 );
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return "$bytes GB";
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}
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/**
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* @brief Make a computer file size
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* @param $str file size in a fancy format
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* @returns a file size in bytes
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*
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* Makes 2kB to 2048.
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*
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* Inspired by: http://www.php.net/manual/en/function.filesize.php#92418
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*/
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public static function computerFileSize( $str ){
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$bytes = 0;
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$bytes_array = array(
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'B' => 1,
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'K' => 1024,
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'KB' => 1024,
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'MB' => 1024 * 1024,
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'M' => 1024 * 1024,
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'GB' => 1024 * 1024 * 1024,
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'G' => 1024 * 1024 * 1024,
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'TB' => 1024 * 1024 * 1024 * 1024,
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'T' => 1024 * 1024 * 1024 * 1024,
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'PB' => 1024 * 1024 * 1024 * 1024 * 1024,
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'P' => 1024 * 1024 * 1024 * 1024 * 1024,
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);
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$bytes = floatval($str);
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if (preg_match('#([KMGTP]?B?)$#si', $str, $matches) && !empty($bytes_array[$matches[1]])) {
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$bytes *= $bytes_array[$matches[1]];
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}
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$bytes = intval(round($bytes, 2));
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return $bytes;
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}
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/**
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* @brief Recusive editing of file permissions
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* @param $path path to file or folder
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* @param $filemode unix style file permissions as integer
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*
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*/
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static function chmodr($path, $filemode) {
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if (!is_dir($path))
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return chmod($path, $filemode);
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$dh = opendir($path);
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while (($file = readdir($dh)) !== false) {
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if($file != '.' && $file != '..') {
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$fullpath = $path.'/'.$file;
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if(is_link($fullpath))
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return FALSE;
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elseif(!is_dir($fullpath) && !chmod($fullpath, $filemode))
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return FALSE;
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elseif(!self::chmodr($fullpath, $filemode))
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return FALSE;
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}
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}
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closedir($dh);
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if(@chmod($path, $filemode))
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return TRUE;
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else
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return FALSE;
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}
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/**
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* @brief Recusive copying of folders
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* @param string $src source folder
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* @param string $dest target folder
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*
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*/
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static function copyr($src, $dest) {
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if(is_dir($src)){
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if(!is_dir($dest)){
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mkdir($dest);
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}
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$files = scandir($src);
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foreach ($files as $file){
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if ($file != "." && $file != ".."){
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self::copyr("$src/$file", "$dest/$file");
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}
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}
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}elseif(file_exists($src)){
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copy($src, $dest);
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}
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}
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/**
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* @brief Recusive deletion of folders
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* @param string $dir path to the folder
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*
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*/
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static function rmdirr($dir) {
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if(is_dir($dir)) {
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$files=scandir($dir);
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foreach($files as $file){
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if ($file != "." && $file != ".."){
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self::rmdirr("$dir/$file");
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}
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}
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rmdir($dir);
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}elseif(file_exists($dir)){
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unlink($dir);
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}
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}
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/**
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* @brief Checks $_REQUEST contains a var for the $s key. If so, returns the html-escaped value of this var; otherwise returns the default value provided by $d.
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* @param $s name of the var to escape, if set.
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* @param $d default value.
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* @returns the print-safe value.
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*
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*/
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//FIXME: should also check for value validation (i.e. the email is an email).
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public static function init_var($s, $d="") {
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$r = $d;
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if(isset($_REQUEST[$s]) && !empty($_REQUEST[$s]))
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$r = stripslashes(htmlspecialchars($_REQUEST[$s]));
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return $r;
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}
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/**
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* returns "checked"-attribut if request contains selected radio element OR if radio element is the default one -- maybe?
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* @param string $s Name of radio-button element name
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* @param string $v Value of current radio-button element
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* @param string $d Value of default radio-button element
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*/
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public static function init_radio($s, $v, $d) {
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if((isset($_REQUEST[$s]) && $_REQUEST[$s]==$v) || (!isset($_REQUEST[$s]) && $v == $d))
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print "checked=\"checked\" ";
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}
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/**
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* detect if a given program is found in the search PATH
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*
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* @param string program name
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* @param string optional search path, defaults to $PATH
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* @return bool true if executable program found in path
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*/
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public static function canExecute($name, $path = false){
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// path defaults to PATH from environment if not set
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if ($path === false) {
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$path = getenv("PATH");
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}
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// check method depends on operating system
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if (!strncmp(PHP_OS, "WIN", 3)) {
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// on Windows an appropriate COM or EXE file needs to exist
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$exts = array(".exe", ".com");
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$check_fn = "file_exists";
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} else {
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// anywhere else we look for an executable file of that name
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$exts = array("");
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$check_fn = "is_executable";
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}
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// Default check will be done with $path directories :
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$dirs = explode(PATH_SEPARATOR, $path);
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// WARNING : We have to check if open_basedir is enabled :
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$obd = ini_get('open_basedir');
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if($obd != "none")
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$obd_values = explode(PATH_SEPARATOR, $obd);
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if(count($obd_values) > 0 and $obd_values[0])
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{
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// open_basedir is in effect !
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// We need to check if the program is in one of these dirs :
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$dirs = $obd_values;
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}
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foreach($dirs as $dir)
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{
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foreach($exts as $ext)
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{
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if($check_fn("$dir/$name".$ext))
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return true;
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}
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}
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return false;
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}
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}
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