280 lines
7.2 KiB
PHP
280 lines
7.2 KiB
PHP
<?php
|
|
/**
|
|
* Copyright (c) 2012 Robin Appelman <icewind@owncloud.com>
|
|
* This file is licensed under the Affero General Public License version 3 or
|
|
* later.
|
|
* See the COPYING-README file.
|
|
*/
|
|
|
|
namespace OC\Files\Storage;
|
|
|
|
/**
|
|
* Storage backend class for providing common filesystem operation methods
|
|
* which are not storage-backend specific.
|
|
*
|
|
* \OC\Files\Storage\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\Files\Storage\Common methods call functions which are first defined
|
|
* in classes which extend it, e.g. $this->stat() .
|
|
*/
|
|
|
|
abstract class Common implements \OC\Files\Storage\Storage {
|
|
|
|
public function __construct($parameters) {}
|
|
public function is_dir($path) {
|
|
return $this->filetype($path)=='dir';
|
|
}
|
|
public function is_file($path) {
|
|
return $this->filetype($path)=='file';
|
|
}
|
|
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) {
|
|
if ($this->is_dir($path) && $this->isUpdatable($path)) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
public function isDeletable($path) {
|
|
return $this->isUpdatable($path);
|
|
}
|
|
public function isSharable($path) {
|
|
return $this->isReadable($path);
|
|
}
|
|
public function getPermissions($path){
|
|
$permissions = 0;
|
|
if($this->isCreatable($path)){
|
|
$permissions |= \OCP\PERMISSION_CREATE;
|
|
}
|
|
if($this->isReadable($path)){
|
|
$permissions |= \OCP\PERMISSION_READ;
|
|
}
|
|
if($this->isUpdatable($path)){
|
|
$permissions |= \OCP\PERMISSION_UPDATE;
|
|
}
|
|
if($this->isDeletable($path)){
|
|
$permissions |= \OCP\PERMISSION_DELETE;
|
|
}
|
|
if($this->isSharable($path)){
|
|
$permissions |= \OCP\PERMISSION_SHARE;
|
|
}
|
|
return $permissions;
|
|
}
|
|
public function filemtime($path) {
|
|
$stat = $this->stat($path);
|
|
return $stat['mtime'];
|
|
}
|
|
public function file_get_contents($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, $data);
|
|
}
|
|
public function rename($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;
|
|
}
|
|
|
|
/**
|
|
* @brief Deletes all files and folders recursively within a directory
|
|
* @param string $directory The directory whose contents will be deleted
|
|
* @param bool $empty Flag indicating whether directory will be emptied
|
|
* @returns bool
|
|
*
|
|
* @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 ) {
|
|
$directory = trim($directory,'/');
|
|
|
|
if ( !$this->file_exists( \OCP\USER::getUser() . '/' . $directory ) || !$this->is_dir( \OCP\USER::getUser() . '/' . $directory ) ) {
|
|
return false;
|
|
} elseif( !$this->isReadable( \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 ) ) {
|
|
$this->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($path);
|
|
$hash=hash($type,$tmpFile,$raw);
|
|
unlink($tmpFile);
|
|
return $hash;
|
|
}
|
|
public function search($query) {
|
|
return $this->searchInDir($query);
|
|
}
|
|
public function getLocalFile($path) {
|
|
return $this->toTmpFile($path);
|
|
}
|
|
private function toTmpFile($path) {//no longer in the storage api, still useful 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.'/'.$file);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
protected function searchInDir($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 string $path
|
|
* @param int $time
|
|
* @return bool
|
|
*/
|
|
public function hasUpdated($path,$time) {
|
|
return $this->filemtime($path)>$time;
|
|
}
|
|
|
|
public function getCache($path=''){
|
|
return new \OC\Files\Cache\Cache($this);
|
|
}
|
|
|
|
public function getScanner($path=''){
|
|
return new \OC\Files\Cache\Scanner($this);
|
|
}
|
|
|
|
public function getPermissionsCache($path=''){
|
|
return new \OC\Files\Cache\Permissions($this);
|
|
}
|
|
|
|
public function getWatcher($path=''){
|
|
return new \OC\Files\Cache\Watcher($this);
|
|
}
|
|
|
|
/**
|
|
* get the owner of a path
|
|
* @param string $path The path to get the owner
|
|
* @return string uid or false
|
|
*/
|
|
public function getOwner($path) {
|
|
return \OC_User::getUser();
|
|
}
|
|
|
|
/**
|
|
* get the ETag for a file or folder
|
|
*
|
|
* @param string $path
|
|
* @return string
|
|
*/
|
|
public function getETag($path){
|
|
$ETagFunction = \OC_Connector_Sabre_Node::$ETagFunction;
|
|
if($ETagFunction) {
|
|
$hash = call_user_func($ETagFunction, $path);
|
|
return $hash;
|
|
}else{
|
|
return uniqid();
|
|
}
|
|
}
|
|
}
|