Dont task external storages with creating their own root

apps/files_external/lib/dropbox.php

@@ -45,7 +45,6 @@ class Dropbox extends \OC\Files\Storage\Common {
 			$oauth = new \Dropbox_OAuth_Curl($params['app_key'], $params['app_secret']);
 			$oauth->setToken($params['token'], $params['token_secret']);
 			$this->dropbox = new \Dropbox_API($oauth, 'dropbox');
-			$this->mkdir('');
 		} else {
 			throw new \Exception('Creating \OC\Files\Storage\Dropbox storage failed');
 		}

apps/files_external/lib/ftp.php

@@ -35,10 +35,6 @@ class FTP extends \OC\Files\Storage\StreamWrapper{
 			if ( ! $this->root || $this->root[0]!='/') {
 				$this->root='/'.$this->root;
 			}
-			//create the root folder if necessary
-			if ( ! $this->is_dir('')) {
-				$this->mkdir('');
-			}
 		} else {
 			throw new \Exception();
 		}
@@ -63,7 +59,6 @@ class FTP extends \OC\Files\Storage\StreamWrapper{
 		return $url;
 	}
 	public function fopen($path,$mode) {
-		$this->init();
 		switch($mode) {
 			case 'r':
 			case 'rb':
@@ -100,7 +95,6 @@ class FTP extends \OC\Files\Storage\StreamWrapper{
 	}
 
 	public function writeBack($tmpFile) {
-		$this->init();
 		if (isset(self::$tempFiles[$tmpFile])) {
 			$this->uploadFile($tmpFile, self::$tempFiles[$tmpFile]);
 			unlink($tmpFile);

apps/files_external/lib/sftp.php

@@ -50,10 +50,6 @@ class SFTP extends \OC\Files\Storage\Common {
 			$host_keys[$this->host] = $current_host_key;
 			$this->write_host_keys($host_keys);
 		}
-
-		if(!$this->file_exists('')){
-			$this->mkdir('');
-		}
 	}
 
 	public function test() {

apps/files_external/lib/smb.php

@@ -73,7 +73,6 @@ class SMB extends \OC\Files\Storage\StreamWrapper{
 	 * @return bool
 	 */
 	public function hasUpdated($path,$time) {
-		$this->init();
 		if(!$path and $this->root=='/') {
 			// mtime doesn't work for shares, but giving the nature of the backend,
 			// doing a full update is still just fast enough

apps/files_external/lib/streamwrapper.php

@@ -8,46 +8,28 @@
 
 namespace OC\Files\Storage;
 
-abstract class StreamWrapper extends \OC\Files\Storage\Common{
-	private $ready = false;
-
-	protected function init(){
-		if($this->ready) {
-			return;
-		}
-		$this->ready = true;
-
-		//create the root folder if necesary
-		if(!$this->is_dir('')) {
-			$this->mkdir('');
-		}
-	}
-
+abstract class StreamWrapper extends Common{
 	abstract public function constructUrl($path);
 
 	public function mkdir($path) {
-		$this->init();
 		return mkdir($this->constructUrl($path));
 	}
 
 	public function rmdir($path) {
-		$this->init();
 		if($this->file_exists($path)) {
-			$succes = rmdir($this->constructUrl($path));
+			$success = rmdir($this->constructUrl($path));
 			clearstatcache();
-			return $succes;
+			return $success;
 		} else {
 			return false;
 		}
 	}
 
 	public function opendir($path) {
-		$this->init();
 		return opendir($this->constructUrl($path));
 	}
 
 	public function filetype($path) {
-		$this->init();
 		return filetype($this->constructUrl($path));
 	}
 
@@ -60,24 +42,20 @@ abstract class StreamWrapper extends \OC\Files\Storage\Common{
 	}
 
 	public function file_exists($path) {
-		$this->init();
 		return file_exists($this->constructUrl($path));
 	}
 
 	public function unlink($path) {
-		$this->init();
-		$succes = unlink($this->constructUrl($path));
+		$success = unlink($this->constructUrl($path));
 		clearstatcache();
-		return $succes;
+		return $success;
 	}
 
 	public function fopen($path, $mode) {
-		$this->init();
 		return fopen($this->constructUrl($path), $mode);
 	}
 
 	public function touch($path, $mtime=null) {
-		$this->init();
 		if(is_null($mtime)) {
 			$fh = $this->fopen($path, 'a');
 			fwrite($fh, '');
@@ -88,22 +66,18 @@ abstract class StreamWrapper extends \OC\Files\Storage\Common{
 	}
 
 	public function getFile($path, $target) {
-		$this->init();
 		return copy($this->constructUrl($path), $target);
 	}
 
 	public function uploadFile($path, $target) {
-		$this->init();
 		return copy($path, $this->constructUrl($target));
 	}
 
 	public function rename($path1, $path2) {
-		$this->init();
 		return rename($this->constructUrl($path1), $this->constructUrl($path2));
 	}
 
 	public function stat($path) {
-		$this->init();
 		return stat($this->constructUrl($path));
 	}
 

apps/files_external/lib/webdav.php

@@ -73,8 +73,6 @@ class DAV extends \OC\Files\Storage\Common{
 				$this->client->addTrustedCertificates($certPath);
 			}
 		}
-		//create the root folder if necessary
-		$this->mkdir('');
 	}
 
 	public function getId(){

apps/files_external/tests/ftp.php

@@ -19,6 +19,7 @@ class FTP extends Storage {
 		}
 		$this->config['ftp']['root'] .= '/' . $id; //make sure we have an new empty folder to work in
 		$this->instance = new \OC\Files\Storage\FTP($this->config['ftp']);
+		$this->instance->mkdir('/');
 	}
 
 	public function tearDown() {

apps/files_external/tests/sftp.php

@@ -33,6 +33,7 @@ class SFTP extends Storage {
 		}
 		$this->config['sftp']['root'] .= '/' . $id; //make sure we have an new empty folder to work in
 		$this->instance = new \OC\Files\Storage\SFTP($this->config['sftp']);
+		$this->instance->mkdir('/');
 	}
 
 	public function tearDown() {
@@ -40,4 +41,4 @@ class SFTP extends Storage {
 			$this->instance->rmdir('/');
 		}
 	}
-}
+}

apps/files_external/tests/smb.php

@@ -20,6 +20,7 @@ class SMB extends Storage {
 		}
 		$this->config['smb']['root'] .= $id; //make sure we have an new empty folder to work in
 		$this->instance = new \OC\Files\Storage\SMB($this->config['smb']);
+		$this->instance->mkdir('/');
 	}
 
 	public function tearDown() {

apps/files_external/tests/webdav.php

@@ -20,6 +20,7 @@ class DAV extends Storage {
 		}
 		$this->config['webdav']['root'] .= '/' . $id; //make sure we have an new empty folder to work in
 		$this->instance = new \OC\Files\Storage\DAV($this->config['webdav']);
+		$this->instance->mkdir('/');
 	}
 
 	public function tearDown() {