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<?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.
*/
class OC_FileStorage_DAV extends OC_Filestorage_Common{
private $password;
private $user;
private $host;
private $secure;
private $root;
/**
* @var Sabre_DAV_Client
*/
private $client;
private static $tempFiles=array();
public function __construct($params){
$host = $params['host'];
//remove leading http[s], will be generated in createBaseUri()
if (substr($host,0,8) == "https://") $host = substr($host, 8);
else if (substr($host,0,7) == "http://") $host = substr($host, 7);
$this->host=$host;
$this->user=$params['user'];
$this->password=$params['password'];
$this->secure=(isset($params['secure']) && $params['secure'] == 'true')?true:false;
$this->root=isset($params['root'])?$params['root']:'/';
if(!$this->root || $this->root[0]!='/'){
$this->root='/'.$this->root;
}
if(substr($this->root,-1,1)!='/'){
$this->root.='/';
}
$settings = array(
'baseUri' => $this->createBaseUri(),
'userName' => $this->user,
'password' => $this->password,
);
$this->client = new Sabre_DAV_Client($settings);
//create the root folder if necesary
$this->mkdir('');
}
private function createBaseUri(){
$baseUri='http';
if($this->secure){
$baseUri.='s';
}
$baseUri.='://'.$this->host.$this->root;
return $baseUri;
}
public function mkdir($path){
$path=$this->cleanPath($path);
return $this->simpleResponse('MKCOL',$path,null,201);
}
public function rmdir($path){
$path=$this->cleanPath($path);
return $this->simpleResponse('DELETE',$path,null,204);
}
public function opendir($path){
$path=$this->cleanPath($path);
try{
$response=$this->client->propfind($path, array(),1);
$stripLength=strlen($this->root)+strlen($path);
$id=md5('webdav'.$this->root.$path);
OC_FakeDirStream::$dirs[$id]=array();
foreach($response as $file=>$data){
//strip root and path
$file=trim(substr($file,$stripLength));
$file=trim($file,'/');
if($file){
OC_FakeDirStream::$dirs[$id][]=$file;
}
}
return opendir('fakedir://'.$id);
}catch(Exception $e){
return false;
}
}
public function filetype($path){
$path=$this->cleanPath($path);
try{
$response=$this->client->propfind($path, array('{DAV:}resourcetype'));
$responseType=$response["{DAV:}resourcetype"]->resourceType;
return (count($responseType)>0 and $responseType[0]=="{DAV:}collection")?'dir':'file';
}catch(Exception $e){
return false;
}
}
public function is_readable($path){
return true;//not properly supported
}
public function is_writable($path){
return true;//not properly supported
}
public function file_exists($path){
$path=$this->cleanPath($path);
try{
$response=$this->client->propfind($path, array('{DAV:}resourcetype'));
return true;//no 404 exception
}catch(Exception $e){
return false;
}
}
public function unlink($path){
return $this->simpleResponse('DELETE',$path,null,204);
}
public function fopen($path,$mode){
$path=$this->cleanPath($path);
switch($mode){
case 'r':
case 'rb':
//straight up curl instead of sabredav here, sabredav put's the entire get result in memory
$curl = curl_init();
$fp = fopen('php://temp', 'r+');
curl_setopt($curl,CURLOPT_USERPWD,$this->user.':'.$this->password);
curl_setopt($curl, CURLOPT_URL, $this->createBaseUri().$path);
curl_setopt($curl, CURLOPT_FILE, $fp);
curl_exec ($curl);
curl_close ($curl);
rewind($fp);
return $fp;
case 'w':
case 'wb':
case 'a':
case 'ab':
case 'r+':
case 'w+':
case 'wb+':
case 'a+':
case 'x':
case 'x+':
case 'c':
case 'c+':
//emulate these
if(strrpos($path,'.')!==false){
$ext=substr($path,strrpos($path,'.'));
}else{
$ext='';
}
$tmpFile=OCP\Files::tmpFile($ext);
OC_CloseStreamWrapper::$callBacks[$tmpFile]=array($this,'writeBack');
if($this->file_exists($path)){
$this->getFile($path,$tmpFile);
}
self::$tempFiles[$tmpFile]=$path;
return fopen('close://'.$tmpFile,$mode);
}
}
public function writeBack($tmpFile){
if(isset(self::$tempFiles[$tmpFile])){
$this->uploadFile($tmpFile,self::$tempFiles[$tmpFile]);
unlink($tmpFile);
}
}
public function free_space($path){
$path=$this->cleanPath($path);
try{
$response=$this->client->propfind($path, array('{DAV:}quota-available-bytes'));
if(isset($response['{DAV:}quota-available-bytes'])){
return (int)$response['{DAV:}quota-available-bytes'];
}else{
return 0;
}
}catch(Exception $e){
return 0;
}
}
public function touch($path,$mtime=null){
if(is_null($mtime)){
$mtime=time();
}
$path=$this->cleanPath($path);
$this->client->proppatch($path, array('{DAV:}lastmodified' => $mtime,));
}
public function getFile($path,$target){
$source=$this->fopen($path,'r');
file_put_contents($target,$source);
}
public function uploadFile($path,$target){
$source=fopen($path,'r');
$curl = curl_init();
curl_setopt($curl,CURLOPT_USERPWD,$this->user.':'.$this->password);
curl_setopt($curl, CURLOPT_URL, $this->createBaseUri().$target);
curl_setopt($curl, CURLOPT_BINARYTRANSFER, true);
curl_setopt($curl, CURLOPT_INFILE, $source); // file pointer
curl_setopt($curl, CURLOPT_INFILESIZE, filesize($path));
curl_setopt($curl, CURLOPT_PUT, true);
curl_exec ($curl);
curl_close ($curl);
}
public function rename($path1,$path2){
$path1=$this->cleanPath($path1);
$path2=$this->root.$this->cleanPath($path2);
try{
$response=$this->client->request('MOVE',$path1,null,array('Destination'=>$path2));
return true;
}catch(Exception $e){
echo $e;
echo 'fail';
var_dump($response);
return false;
}
}
public function copy($path1,$path2){
$path1=$this->cleanPath($path1);
$path2=$this->root.$this->cleanPath($path2);
try{
$response=$this->client->request('COPY',$path1,null,array('Destination'=>$path2));
return true;
}catch(Exception $e){
echo $e;
echo 'fail';
var_dump($response);
return false;
}
}
public function stat($path){
$path=$this->cleanPath($path);
try{
$response=$this->client->propfind($path, array('{DAV:}getlastmodified','{DAV:}getcontentlength'));
if(isset($response['{DAV:}getlastmodified']) and isset($response['{DAV:}getcontentlength'])){
return array(
'mtime'=>strtotime($response['{DAV:}getlastmodified']),
'size'=>(int)$response['{DAV:}getcontentlength'],
'ctime'=>-1,
);
}else{
return array();
}
}catch(Exception $e){
return array();
}
}
public function getMimeType($path){
$path=$this->cleanPath($path);
try{
$response=$this->client->propfind($path, array('{DAV:}getcontenttype','{DAV:}resourcetype'));
$responseType=$response["{DAV:}resourcetype"]->resourceType;
$type=(count($responseType)>0 and $responseType[0]=="{DAV:}collection")?'dir':'file';
if($type=='dir'){
return 'httpd/unix-directory';
}elseif(isset($response['{DAV:}getcontenttype'])){
return $response['{DAV:}getcontenttype'];
}else{
return false;
}
}catch(Exception $e){
return false;
}
}
private function cleanPath($path){
if(!$path || $path[0]=='/'){
return substr($path,1);
}else{
return $path;
}
}
private function simpleResponse($method,$path,$body,$expected){
$path=$this->cleanPath($path);
try{
$response=$this->client->request($method,$path,$body);
return $response['statusCode']==$expected;
}catch(Exception $e){
return false;
}
}
}
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