diff --git a/3rdparty/Dropbox/API.php b/3rdparty/Dropbox/API.php
index cff6c35c7fbbda510e92baa205dcd3d317f782b6..8cdce678e1c8101d756cd72d36f4d9fbb49c18df 100644
--- a/3rdparty/Dropbox/API.php
+++ b/3rdparty/Dropbox/API.php
@@ -139,7 +139,7 @@ class Dropbox_API {
     public function copy($from, $to, $root = null) {
 
         if (is_null($root)) $root = $this->root;
-        $response = $this->oauth->fetch($this->api_url . 'fileops/copy', array('from_path' => $from, 'to_path' => $to, 'root' => $root));
+        $response = $this->oauth->fetch($this->api_url . 'fileops/copy', array('from_path' => $from, 'to_path' => $to, 'root' => $root), 'POST');
 
         return json_decode($response['body'],true);
 
@@ -178,7 +178,7 @@ class Dropbox_API {
     public function delete($path, $root = null) {
 
         if (is_null($root)) $root = $this->root;
-        $response = $this->oauth->fetch($this->api_url . 'fileops/delete', array('path' => $path, 'root' => $root));
+        $response = $this->oauth->fetch($this->api_url . 'fileops/delete', array('path' => $path, 'root' => $root), 'POST');
         return json_decode($response['body']);
 
     }
@@ -196,7 +196,7 @@ class Dropbox_API {
     public function move($from, $to, $root = null) {
 
         if (is_null($root)) $root = $this->root;
-        $response = $this->oauth->fetch($this->api_url . 'fileops/move', array('from_path' => rawurldecode($from), 'to_path' => rawurldecode($to), 'root' => $root));
+        $response = $this->oauth->fetch($this->api_url . 'fileops/move', array('from_path' => rawurldecode($from), 'to_path' => rawurldecode($to), 'root' => $root), 'POST');
 
         return json_decode($response['body'],true);
 
diff --git a/apps/files_external/lib/dropbox.php b/apps/files_external/lib/dropbox.php
index e3fbb2449968e4d6362303343b19edafd1f852b4..35663d431f8e30637c7fc10f49156653451f5143 100755
--- a/apps/files_external/lib/dropbox.php
+++ b/apps/files_external/lib/dropbox.php
@@ -70,11 +70,16 @@ class OC_Filestorage_Dropbox extends OC_Filestorage_Common {
 	}
 
 	public function mkdir($path) {
-		return $this->dropbox->createFolder($path);
+		try {
+			$this->dropbox->createFolder($path);
+			return true;
+		} catch (Exception $exception) {
+			return false;
+		}
 	}
 
 	public function rmdir($path) {
-		return $this->dropbox->delete($path);
+		return $this->unlink($path);
 	}
 
 	public function opendir($path) {
@@ -114,11 +119,11 @@ class OC_Filestorage_Dropbox extends OC_Filestorage_Common {
 	}
 
 	public function is_readable($path) {
-		return self::file_exists($path);
+		return $this->file_exists($path);
 	}
 
 	public function is_writable($path) {
-		return self::file_exists($path);
+		return $this->file_exists($path);
 	}
 
 	public function file_exists($path) {
@@ -132,7 +137,30 @@ class OC_Filestorage_Dropbox extends OC_Filestorage_Common {
 	}
 
 	public function unlink($path) {
-		return $this->dropbox->delete($path);
+		try {
+			$this->dropbox->delete($path);
+			return true;
+		} catch (Exception $exception) {
+			return false;
+		}
+	}
+
+	public function rename($path1, $path2) {
+		try {
+			$this->dropbox->move($path1, $path2);
+			return true;
+		} catch (Exception $exception) {
+			return false;
+		}
+	}
+
+	public function copy($path1, $path2) {
+		try {
+			$this->dropbox->copy($path1, $path2);
+			return true;
+		} catch (Exception $exception) {
+			return false;
+		}
 	}
 
 	public function fopen($path, $mode) {
@@ -140,8 +168,13 @@ class OC_Filestorage_Dropbox extends OC_Filestorage_Common {
 			case 'r':
 			case 'rb':
 				$tmpFile = OC_Helper::tmpFile();
-				file_put_contents($tmpFile, $this->dropbox->getFile($path));
-				return fopen($tmpFile, 'r');
+				try {
+					$data = $this->dropbox->getFile($path);
+					file_put_contents($tmpFile, $data);
+					return fopen($tmpFile, 'r');
+				} catch (Exception $exception) {
+					return false;
+				}
 			case 'w':
 			case 'wb':
 			case 'a':
@@ -174,9 +207,11 @@ class OC_Filestorage_Dropbox extends OC_Filestorage_Common {
 	public function writeBack($tmpFile) {
 		if (isset(self::$tempFiles[$tmpFile])) {
 			$handle = fopen($tmpFile, 'r');
-			$response = $this->dropbox->putFile(self::$tempFiles[$tmpFile], $handle);
-			if ($response) {
+			try {
+				$response = $this->dropbox->putFile(self::$tempFiles[$tmpFile], $handle);
 				unlink($tmpFile);
+			} catch (Exception $exception) {
+				
 			}
 		}
 	}
@@ -191,10 +226,12 @@ class OC_Filestorage_Dropbox extends OC_Filestorage_Common {
 	}
 
 	public function free_space($path) {
-		if ($info = $this->dropbox->getAccountInfo()) {
+		try {
+			$info = $this->dropbox->getAccountInfo();
 			return $info['quota_info']['quota'] - $info['quota_info']['normal'];
+		} catch (Exception $exception) {
+			return false;
 		}
-		return false;
 	}
 
 	public function touch($path, $mtime = null) {