nextcloud/inc/lib_files.php

279 lines
7.1 KiB
PHP
Executable File

<?php
/**
* ownCloud
*
* @author Frank Karlitschek
* @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 Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
oc_require_once("lib_log.php");
/**
* Class for fileserver access
*
*/
class OC_FILES {
static $tmpFiles=array();
/**
* show a web GUI filebrowser
*
* @param basedir $basedir
* @param dir $dir
*/
public static function showbrowser($basedir,$dir){
echo '<div id="content"></div>';
}
/**
* get the content of a directory
* @param dir $directory
*/
public static function getdirectorycontent($directory){
global $CONFIG_DATADIRECTORY;
if(strpos($directory,$CONFIG_DATADIRECTORY)===0){
$directory=substr($directory,strlen($CONFIG_DATADIRECTORY));
}
$filesfound=true;
$content=array();
$dirs=array();
$file=array();
$files=array();
if (OC_FILESYSTEM::is_dir($directory)) {
if ($dh = OC_FILESYSTEM::opendir($directory)) {
while (($filename = readdir($dh)) !== false) {
if($filename<>'.' and $filename<>'..' and substr($filename,0,1)!='.'){
$file=array();
$filesfound=true;
$file['name']=$filename;
$file['directory']=$directory;
$stat=OC_FILESYSTEM::stat($directory.'/'.$filename);
$file=array_merge($file,$stat);
$file['mime']=OC_FILES::getMimeType($directory .'/'. $filename);
$file['readable']=OC_FILESYSTEM::is_readable($directory .'/'. $filename);
$file['writeable']=OC_FILESYSTEM::is_writeable($directory .'/'. $filename);
$file['type']=OC_FILESYSTEM::filetype($directory .'/'. $filename);
if($file['type']=='dir'){
$dirs[$file['name']]=$file;
}else{
$files[$file['name']]=$file;
}
}
}
closedir($dh);
}
}
ksort($dirs);
ksort($files);
$content=array_merge($dirs,$files);
if($filesfound){
return $content;
}else{
return false;
}
}
/**
* return the content of a file or return a zip file containning multiply files
*
* @param dir $dir
* @param file $file
*/
public static function get($dir,$files){
if(strpos($files,';')){
$files=explode(';',$files);
}
if(is_array($files)){
$zip = new ZipArchive();
$filename = sys_get_temp_dir()."/ownCloud.zip";
if ($zip->open($filename, ZIPARCHIVE::CREATE)!==TRUE) {
exit("cannot open <$filename>\n");
}
foreach($files as $file){
$file=$dir.'/'.$file;
if(OC_FILESYSTEM::is_file($file)){
$tmpFile=OC_FILESYSTEM::toTmpFile($file);
self::$tmpFiles[]=$tmpFile;
$zip->addFile($tmpFile,basename($file));
}elseif(OC_FILESYSTEM::is_dir($file)){
zipAddDir($file,$zip);
}
}
$zip->close();
}elseif(OC_FILESYSTEM::is_dir($dir.'/'.$files)){
$zip = new ZipArchive();
$filename = sys_get_temp_dir()."/ownCloud.zip";
if ($zip->open($filename, ZIPARCHIVE::CREATE)!==TRUE) {
exit("cannot open <$filename>\n");
}
$file=$dir.'/'.$files;
zipAddDir($file,$zip);
$zip->close();
}else{
$zip=false;
$filename=$dir.'/'.$files;
}
if($zip or OC_FILESYSTEM::is_readable($filename)){
header('Content-Disposition: attachment; filename='.basename($filename));
header('Content-Transfer-Encoding: binary');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
header('Content-Length: ' . filesize($filename));
}elseif($zip or !OC_FILESYSTEM::file_exists($filename)){
header("HTTP/1.0 404 Not Found");
die('404 Not Found');
}else{
header("HTTP/1.0 403 Forbidden");
die('403 Forbidden');
}
ob_end_clean();
OC_LOG::event($_SESSION['username'],3,"$dir/$files");
if($zip){
readfile($filename);
unlink($filename);
}else{
OC_FILESYSTEM::readfile($filename);
}
foreach(self::$tmpFiles as $tmpFile){
if(file_exists($tmpFile) and is_file($tmpFile)){
unlink($tmpFile);
}
}
}
/**
* move a file or folder
*
* @param dir $sourceDir
* @param file $source
* @param dir $targetDir
* @param file $target
*/
public static function move($sourceDir,$source,$targetDir,$target){
if(OC_USER::isLoggedIn()){
$targetFile=$targetDir.'/'.$target;
$sourceFile=$sourceDir.'/'.$source;
return OC_FILESYSTEM::rename($sourceFile,$targetFile);
}
}
/**
* copy a file or folder
*
* @param dir $sourceDir
* @param file $source
* @param dir $targetDir
* @param file $target
*/
public static function copy($sourceDir,$source,$targetDir,$target){
if(OC_USER::isLoggedIn()){
$targetFile=$targetDir.'/'.$target;
$sourceFile=$sourceDir.'/'.$source;
return OC_FILESYSTEM::copy($sourceFile,$targetFile);
}
}
/**
* create a new file or folder
*
* @param dir $dir
* @param file $name
* @param type $type
*/
public static function newfile($dir,$name,$type){
if(OC_USER::isLoggedIn()){
$file=$dir.'/'.$name;
if($type=='dir'){
return OC_FILESYSTEM::mkdir($file);
}elseif($type=='file'){
$fileHandle=OC_FILESYSTEM::fopen($file, 'w');
if($fileHandle){
fclose($fileHandle);
OC_LOG::event($_SESSION['username'],4,"$dir/$name");
return true;
}else{
return false;
}
}
}
}
/**
* deletes a file or folder
*
* @param dir $dir
* @param file $name
*/
public static function delete($dir,$file){
if(OC_USER::isLoggedIn()){
$file=$dir.'/'.$file;
if(OC_FILESYSTEM::is_file($file)){
return OC_FILESYSTEM::unlink($file);
}elseif(OC_FILESYSTEM::is_dir($file)){
return OC_FILESYSTEM::delTree($file);
}
}
}
/**
* try to detect the mime type of a file
*
* @param string path
* @return string guessed mime type
*/
static function getMimeType($path){
return OC_FILESYSTEM::getMimeType($path);
}
}
function zipAddDir($dir,$zip,$internalDir=''){
$dirname=basename($dir);
$zip->addEmptyDir($internalDir.$dirname);
$internalDir.=$dirname.='/';
$files=OC_FILES::getdirectorycontent($dir);
foreach($files as $file){
$filename=$file['name'];
$file=$dir.'/'.$filename;
if(OC_FILESYSTEM::is_file($file)){
$tmpFile=OC_FILESYSTEM::toTmpFile($file);
OC_FILES::$tmpFiles[]=$tmpFile;
$zip->addFile($tmpFile,$internalDir.$filename);
}elseif(OC_FILESYSTEM::is_dir($file)){
zipAddDir($file,$zip,$internalDir);
}
}
}
if(!function_exists('sys_get_temp_dir')) {
function sys_get_temp_dir() {
if( $temp=getenv('TMP') ) return $temp;
if( $temp=getenv('TEMP') ) return $temp;
if( $temp=getenv('TMPDIR') ) return $temp;
$temp=tempnam(__FILE__,'');
if (file_exists($temp)) {
unlink($temp);
return dirname($temp);
}
return null;
}
}
?>