321 lines
7.9 KiB
PHP
Executable File
321 lines
7.9 KiB
PHP
Executable File
<?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
|
|
* @param $redirect_url redirect_url variable is appended to the URL
|
|
* @returns the url
|
|
*
|
|
* Returns a url to the given app and file.
|
|
*/
|
|
public static function linkTo( $app, $file , $redirect_url=NULL ){
|
|
global $WEBROOT;
|
|
global $SERVERROOT;
|
|
|
|
if( $app != '' ){
|
|
$app .= '/';
|
|
// Check if the app is in the app folder
|
|
if( file_exists( $SERVERROOT . '/apps/'. $app.$file )){
|
|
$urlLinkTo = $WEBROOT . '/apps/' . $app . $file;
|
|
}
|
|
else{
|
|
$urlLinkTo = $WEBROOT . '/' . $app . $file;
|
|
}
|
|
}
|
|
else{
|
|
if( file_exists( $SERVERROOT . '/core/'. $file )){
|
|
$urlLinkTo = $WEBROOT . '/core/'.$file;
|
|
}
|
|
else{
|
|
$urlLinkTo = $WEBROOT . '/'.$file;
|
|
}
|
|
}
|
|
|
|
if($redirect_url)
|
|
return $urlLinkTo.'?redirect_url='.$redirect_url;
|
|
else
|
|
return $urlLinkTo;
|
|
|
|
}
|
|
|
|
/**
|
|
* @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/$app/img/$image" )){
|
|
return "$WEBROOT/apps/$app/img/$image";
|
|
}
|
|
elseif( !empty( $app )){
|
|
return "$WEBROOT/$app/img/$image";
|
|
}
|
|
else{
|
|
return "$WEBROOT/core/img/$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/core/img/places/folder.png";
|
|
}
|
|
|
|
// Icon exists?
|
|
if( file_exists( "$SERVERROOT/core/img/mimetypes/$mimetype.png" )){
|
|
return "$WEBROOT/core/img/mimetypes/$mimetype.png";
|
|
}
|
|
//try only the first part of the mimetype
|
|
$mimetype=substr($mimetype,0,strpos($mimetype,'-'));
|
|
if( file_exists( "$SERVERROOT/core/img/mimetypes/$mimetype.png" )){
|
|
return "$WEBROOT/core/img/mimetypes/$mimetype.png";
|
|
}
|
|
else{
|
|
return "$WEBROOT/core/img/mimetypes/file.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 $filemode unix style file permissions as integer
|
|
*
|
|
*/
|
|
static function chmodr($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, $filemode))
|
|
return FALSE;
|
|
elseif(!self::chmodr($fullpath, $filemode))
|
|
return FALSE;
|
|
}
|
|
}
|
|
closedir($dh);
|
|
if(@chmod($path, $filemode))
|
|
return TRUE;
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
* @brief Recusive copying of folders
|
|
* @param string $src source folder
|
|
* @param string $dest target folder
|
|
*
|
|
*/
|
|
static function copyr($src, $dest) {
|
|
if(is_dir($src)){
|
|
if(!is_dir($dest)){
|
|
mkdir($dest);
|
|
}
|
|
$files = scandir($src);
|
|
foreach ($files as $file){
|
|
if ($file != "." && $file != ".."){
|
|
self::copyr("$src/$file", "$dest/$file");
|
|
}
|
|
}
|
|
}elseif(file_exists($src)){
|
|
copy($src, $dest);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Recusive deletion of folders
|
|
* @param string $dir path to the folder
|
|
*
|
|
*/
|
|
static function rmdirr($dir) {
|
|
if(is_dir($dir)) {
|
|
$files=scandir($dir);
|
|
foreach($files as $file){
|
|
if ($file != "." && $file != ".."){
|
|
self::rmdirr("$dir/$file");
|
|
}
|
|
}
|
|
rmdir($dir);
|
|
}elseif(file_exists($dir)){
|
|
unlink($dir);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @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.
|
|
* @param $s name of the var to escape, if set.
|
|
* @param $d default value.
|
|
* @returns the print-safe value.
|
|
*
|
|
*/
|
|
|
|
//FIXME: should also check for value validation (i.e. the email is an email).
|
|
public static function init_var($s, $d="") {
|
|
$r = $d;
|
|
if(isset($_REQUEST[$s]) && !empty($_REQUEST[$s]))
|
|
$r = stripslashes(htmlspecialchars($_REQUEST[$s]));
|
|
|
|
return $r;
|
|
}
|
|
|
|
public static function init_radio($s, $v, $d) {
|
|
if((isset($_REQUEST[$s]) && $_REQUEST[$s]==$v) || $v == $d)
|
|
print "checked=\"checked\" ";
|
|
}
|
|
|
|
/**
|
|
* detect if a given program is found in the search PATH
|
|
*
|
|
* @param string program name
|
|
* @param string optional search path, defaults to $PATH
|
|
* @return bool true if executable program found in path
|
|
*/
|
|
public static function canExecute($name, $path = false){
|
|
// path defaults to PATH from environment if not set
|
|
if ($path === false) {
|
|
$path = getenv("PATH");
|
|
}
|
|
// check method depends on operating system
|
|
if (!strncmp(PHP_OS, "WIN", 3)) {
|
|
// on Windows an appropriate COM or EXE file needs to exist
|
|
$exts = array(".exe", ".com");
|
|
$check_fn = "file_exists";
|
|
} else {
|
|
// anywhere else we look for an executable file of that name
|
|
$exts = array("");
|
|
$check_fn = "is_executable";
|
|
}
|
|
// Default check will be done with $path directories :
|
|
$dirs = explode(PATH_SEPARATOR, $path);
|
|
// WARNING : We have to check if open_basedir is enabled :
|
|
$obd = ini_get('open_basedir');
|
|
if($obd != "none")
|
|
$obd_values = explode(PATH_SEPARATOR, $obd);
|
|
if(count($obd_values) > 0 and $obd_values[0])
|
|
{
|
|
// open_basedir is in effect !
|
|
// We need to check if the program is in one of these dirs :
|
|
$dirs = $obd_values;
|
|
}
|
|
foreach($dirs as $dir)
|
|
{
|
|
foreach($exts as $ext)
|
|
{
|
|
if($check_fn("$dir/$name".$ext))
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
}
|