283 lines
7.3 KiB
PHP
283 lines
7.3 KiB
PHP
<?php
|
|
|
|
/**
|
|
* ownCloud
|
|
*
|
|
* @author Michael Gapczynski
|
|
* @copyright 2012 Michael Gapczynski GapczynskiM@gmail.com
|
|
*
|
|
* 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/>.
|
|
*/
|
|
|
|
/**
|
|
* Storage backend class for providing common filesystem operation methods
|
|
* which are not storage-backend specific.
|
|
*
|
|
* OC_Filestorage_Common is never used directly; it is extended by all other
|
|
* storage backends, where its methods may be overridden, and additional
|
|
* (backend-specific) methods are defined.
|
|
*
|
|
* Some OC_Filestorage_Common methods call functions which are first defined
|
|
* in classes which extend it, e.g. $this->stat() .
|
|
*/
|
|
|
|
abstract class OC_Filestorage_Common extends OC_Filestorage {
|
|
|
|
public function __construct($parameters) {}
|
|
// abstract public function mkdir($path);
|
|
// abstract public function rmdir($path);
|
|
// abstract public function opendir($path);
|
|
public function is_dir($path) {
|
|
return $this->filetype($path)=='dir';
|
|
}
|
|
public function is_file($path) {
|
|
return $this->filetype($path)=='file';
|
|
}
|
|
// abstract public function stat($path);
|
|
// abstract public function filetype($path);
|
|
public function filesize($path) {
|
|
if($this->is_dir($path)) {
|
|
return 0;//by definition
|
|
}else{
|
|
$stat = $this->stat($path);
|
|
return $stat['size'];
|
|
}
|
|
}
|
|
public function isCreatable($path) {
|
|
return $this->isUpdatable($path);
|
|
}
|
|
// abstract public function isReadable($path);
|
|
// abstract public function isUpdatable($path);
|
|
public function isDeletable($path) {
|
|
return $this->isUpdatable($path);
|
|
}
|
|
public function isSharable($path) {
|
|
return $this->isReadable($path);
|
|
}
|
|
// abstract public function file_exists($path);
|
|
public function filectime($path) {
|
|
$stat = $this->stat($path);
|
|
return $stat['ctime'];
|
|
}
|
|
public function filemtime($path) {
|
|
$stat = $this->stat($path);
|
|
return $stat['mtime'];
|
|
}
|
|
public function fileatime($path) {
|
|
$stat = $this->stat($path);
|
|
return $stat['atime'];
|
|
}
|
|
public function file_get_contents($path) {
|
|
$handle = $this->fopen($path, "r");
|
|
if(!$handle) {
|
|
return false;
|
|
}
|
|
$size=$this->filesize($path);
|
|
if($size==0) {
|
|
return '';
|
|
}
|
|
return fread($handle, $size);
|
|
}
|
|
public function file_put_contents($path,$data) {
|
|
$handle = $this->fopen($path, "w");
|
|
return fwrite($handle, $data);
|
|
}
|
|
// abstract public function unlink($path);
|
|
public function rename($path1,$path2) {
|
|
if($this->copy($path1,$path2)) {
|
|
return $this->unlink($path1);
|
|
}else{
|
|
return false;
|
|
}
|
|
}
|
|
public function copy($path1,$path2) {
|
|
$source=$this->fopen($path1,'r');
|
|
$target=$this->fopen($path2,'w');
|
|
$count=OC_Helper::streamCopy($source,$target);
|
|
return $count>0;
|
|
}
|
|
// abstract public function fopen($path,$mode);
|
|
|
|
/**
|
|
* @brief Deletes all files and folders recursively within a directory
|
|
* @param $directory The directory whose contents will be deleted
|
|
* @param $empty Flag indicating whether directory will be emptied
|
|
* @returns true/false
|
|
*
|
|
* @note By default the directory specified by $directory will be
|
|
* deleted together with its contents. To avoid this set $empty to true
|
|
*/
|
|
public function deleteAll( $directory, $empty = false ) {
|
|
|
|
// strip leading slash
|
|
if( substr( $directory, 0, 1 ) == "/" ) {
|
|
|
|
$directory = substr( $directory, 1 );
|
|
|
|
}
|
|
|
|
// strip trailing slash
|
|
if( substr( $directory, -1) == "/" ) {
|
|
|
|
$directory = substr( $directory, 0, -1 );
|
|
|
|
}
|
|
|
|
if ( !$this->file_exists( \OCP\USER::getUser() . '/' . $directory ) || !$this->is_dir( \OCP\USER::getUser() . '/' . $directory ) ) {
|
|
|
|
return false;
|
|
|
|
} elseif( !$this->is_readable( \OCP\USER::getUser() . '/' . $directory ) ) {
|
|
|
|
return false;
|
|
|
|
} else {
|
|
|
|
$directoryHandle = $this->opendir( \OCP\USER::getUser() . '/' . $directory );
|
|
|
|
while ( $contents = readdir( $directoryHandle ) ) {
|
|
|
|
if ( $contents != '.' && $contents != '..') {
|
|
|
|
$path = $directory . "/" . $contents;
|
|
|
|
if ( $this->is_dir( $path ) ) {
|
|
|
|
deleteAll( $path );
|
|
|
|
} else {
|
|
|
|
$this->unlink( \OCP\USER::getUser() .'/' . $path ); // TODO: make unlink use same system path as is_dir
|
|
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
//$this->closedir( $directoryHandle ); // TODO: implement closedir in OC_FSV
|
|
|
|
if ( $empty == false ) {
|
|
|
|
if ( !$this->rmdir( $directory ) ) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
}
|
|
public function getMimeType($path) {
|
|
if(!$this->file_exists($path)) {
|
|
return false;
|
|
}
|
|
if($this->is_dir($path)) {
|
|
return 'httpd/unix-directory';
|
|
}
|
|
$source=$this->fopen($path,'r');
|
|
if(!$source) {
|
|
return false;
|
|
}
|
|
$head=fread($source,8192);//8kb should suffice to determine a mimetype
|
|
if($pos=strrpos($path,'.')) {
|
|
$extension=substr($path,$pos);
|
|
}else{
|
|
$extension='';
|
|
}
|
|
$tmpFile=OC_Helper::tmpFile($extension);
|
|
file_put_contents($tmpFile,$head);
|
|
$mime=OC_Helper::getMimeType($tmpFile);
|
|
unlink($tmpFile);
|
|
return $mime;
|
|
}
|
|
public function hash($type,$path,$raw = false) {
|
|
$tmpFile=$this->getLocalFile();
|
|
$hash=hash($type,$tmpFile,$raw);
|
|
unlink($tmpFile);
|
|
return $hash;
|
|
}
|
|
// abstract public function free_space($path);
|
|
public function search($query) {
|
|
return $this->searchInDir($query);
|
|
}
|
|
public function getLocalFile($path) {
|
|
return $this->toTmpFile($path);
|
|
}
|
|
private function toTmpFile($path) {//no longer in the storage api, still usefull here
|
|
$source=$this->fopen($path,'r');
|
|
if(!$source) {
|
|
return false;
|
|
}
|
|
if($pos=strrpos($path,'.')) {
|
|
$extension=substr($path,$pos);
|
|
}else{
|
|
$extension='';
|
|
}
|
|
$tmpFile=OC_Helper::tmpFile($extension);
|
|
$target=fopen($tmpFile,'w');
|
|
OC_Helper::streamCopy($source,$target);
|
|
return $tmpFile;
|
|
}
|
|
public function getLocalFolder($path) {
|
|
$baseDir=OC_Helper::tmpFolder();
|
|
$this->addLocalFolder($path,$baseDir);
|
|
return $baseDir;
|
|
}
|
|
private function addLocalFolder($path,$target) {
|
|
if($dh=$this->opendir($path)) {
|
|
while($file=readdir($dh)) {
|
|
if($file!=='.' and $file!=='..') {
|
|
if($this->is_dir($path.'/'.$file)) {
|
|
mkdir($target.'/'.$file);
|
|
$this->addLocalFolder($path.'/'.$file,$target.'/'.$file);
|
|
}else{
|
|
$tmp=$this->toTmpFile($path.'/'.$file);
|
|
rename($tmp,$target.'/'.$file);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// abstract public function touch($path, $mtime=null);
|
|
|
|
protected function searchInDir($query,$dir='') {
|
|
$files=array();
|
|
$dh=$this->opendir($dir);
|
|
if($dh) {
|
|
while($item=readdir($dh)) {
|
|
if ($item == '.' || $item == '..') continue;
|
|
if(strstr(strtolower($item),strtolower($query))!==false) {
|
|
$files[]=$dir.'/'.$item;
|
|
}
|
|
if($this->is_dir($dir.'/'.$item)) {
|
|
$files=array_merge($files,$this->searchInDir($query,$dir.'/'.$item));
|
|
}
|
|
}
|
|
}
|
|
return $files;
|
|
}
|
|
|
|
/**
|
|
* check if a file or folder has been updated since $time
|
|
* @param int $time
|
|
* @return bool
|
|
*/
|
|
public function hasUpdated($path,$time) {
|
|
return $this->filemtime($path)>$time;
|
|
}
|
|
}
|