diff --git a/apps/files_external/3rdparty/composer.json b/apps/files_external/3rdparty/composer.json
index 537159bbf6..caf87983c5 100644
--- a/apps/files_external/3rdparty/composer.json
+++ b/apps/files_external/3rdparty/composer.json
@@ -8,7 +8,7 @@
 		"classmap-authoritative": true
 	},
 	"require": {
-		"icewind/streams": "0.5.2",
+		"icewind/streams": "0.6.1",
 		"icewind/smb": "3.0.0"
 	}
 }
diff --git a/apps/files_external/3rdparty/composer.lock b/apps/files_external/3rdparty/composer.lock
index 7bfcdba3d2..2339220ffb 100644
--- a/apps/files_external/3rdparty/composer.lock
+++ b/apps/files_external/3rdparty/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "0235b6f1a4131c9312afef7a58f3a80e",
+    "content-hash": "1465c8a4b4139e514086d5803d90af2d",
     "packages": [
         {
             "name": "icewind/smb",
@@ -49,16 +49,16 @@
         },
         {
             "name": "icewind/streams",
-            "version": "0.5.2",
+            "version": "0.6.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/icewind1991/Streams.git",
-                "reference": "6bfd2fdbd99319f5e010d0a684409189a562cb1e"
+                "reference": "0a78597117d8a02937ea05206f219294449fb06e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/icewind1991/Streams/zipball/6bfd2fdbd99319f5e010d0a684409189a562cb1e",
-                "reference": "6bfd2fdbd99319f5e010d0a684409189a562cb1e",
+                "url": "https://api.github.com/repos/icewind1991/Streams/zipball/0a78597117d8a02937ea05206f219294449fb06e",
+                "reference": "0a78597117d8a02937ea05206f219294449fb06e",
                 "shasum": ""
             },
             "require": {
@@ -86,7 +86,7 @@
                 }
             ],
             "description": "A set of generic stream wrappers",
-            "time": "2016-12-02T14:21:23+00:00"
+            "time": "2018-04-24T09:07:38+00:00"
         }
     ],
     "packages-dev": [],
diff --git a/apps/files_external/3rdparty/composer/autoload_classmap.php b/apps/files_external/3rdparty/composer/autoload_classmap.php
index d2e658d9f6..6c5f86a579 100644
--- a/apps/files_external/3rdparty/composer/autoload_classmap.php
+++ b/apps/files_external/3rdparty/composer/autoload_classmap.php
@@ -51,14 +51,6 @@ return array(
     'Icewind\\SMB\\Native\\NativeWriteStream' => $vendorDir . '/icewind/smb/src/Native/NativeWriteStream.php',
     'Icewind\\SMB\\ServerFactory' => $vendorDir . '/icewind/smb/src/ServerFactory.php',
     'Icewind\\SMB\\System' => $vendorDir . '/icewind/smb/src/System.php',
-    'Icewind\\SMB\\Test\\AbstractShareTest' => $vendorDir . '/icewind/smb/tests/AbstractShareTest.php',
-    'Icewind\\SMB\\Test\\NativeShareTest' => $vendorDir . '/icewind/smb/tests/NativeShareTest.php',
-    'Icewind\\SMB\\Test\\NativeStreamTest' => $vendorDir . '/icewind/smb/tests/NativeStreamTest.php',
-    'Icewind\\SMB\\Test\\NotifyHandlerTest' => $vendorDir . '/icewind/smb/tests/NotifyHandlerTest.php',
-    'Icewind\\SMB\\Test\\ParserTest' => $vendorDir . '/icewind/smb/tests/ParserTest.php',
-    'Icewind\\SMB\\Test\\ServerTest' => $vendorDir . '/icewind/smb/tests/ServerTest.php',
-    'Icewind\\SMB\\Test\\ShareTest' => $vendorDir . '/icewind/smb/tests/ShareTest.php',
-    'Icewind\\SMB\\Test\\TestCase' => $vendorDir . '/icewind/smb/tests/TestCase.php',
     'Icewind\\SMB\\TimeZoneProvider' => $vendorDir . '/icewind/smb/src/TimeZoneProvider.php',
     'Icewind\\SMB\\Wrapped\\Connection' => $vendorDir . '/icewind/smb/src/Wrapped/Connection.php',
     'Icewind\\SMB\\Wrapped\\ErrorCodes' => $vendorDir . '/icewind/smb/src/Wrapped/ErrorCodes.php',
@@ -69,6 +61,7 @@ return array(
     'Icewind\\SMB\\Wrapped\\Server' => $vendorDir . '/icewind/smb/src/Wrapped/Server.php',
     'Icewind\\SMB\\Wrapped\\Share' => $vendorDir . '/icewind/smb/src/Wrapped/Share.php',
     'Icewind\\Streams\\CallbackWrapper' => $vendorDir . '/icewind/streams/src/CallbackWrapper.php',
+    'Icewind\\Streams\\CountWrapper' => $vendorDir . '/icewind/streams/src/CountWrapper.php',
     'Icewind\\Streams\\Directory' => $vendorDir . '/icewind/streams/src/Directory.php',
     'Icewind\\Streams\\DirectoryFilter' => $vendorDir . '/icewind/streams/src/DirectoryFilter.php',
     'Icewind\\Streams\\DirectoryWrapper' => $vendorDir . '/icewind/streams/src/DirectoryWrapper.php',
diff --git a/apps/files_external/3rdparty/composer/autoload_static.php b/apps/files_external/3rdparty/composer/autoload_static.php
index 3234d89e5b..658c947c9c 100644
--- a/apps/files_external/3rdparty/composer/autoload_static.php
+++ b/apps/files_external/3rdparty/composer/autoload_static.php
@@ -81,14 +81,6 @@ class ComposerStaticInit98fe9b281934250b3a93f69a5ce843b3
         'Icewind\\SMB\\Native\\NativeWriteStream' => __DIR__ . '/..' . '/icewind/smb/src/Native/NativeWriteStream.php',
         'Icewind\\SMB\\ServerFactory' => __DIR__ . '/..' . '/icewind/smb/src/ServerFactory.php',
         'Icewind\\SMB\\System' => __DIR__ . '/..' . '/icewind/smb/src/System.php',
-        'Icewind\\SMB\\Test\\AbstractShareTest' => __DIR__ . '/..' . '/icewind/smb/tests/AbstractShareTest.php',
-        'Icewind\\SMB\\Test\\NativeShareTest' => __DIR__ . '/..' . '/icewind/smb/tests/NativeShareTest.php',
-        'Icewind\\SMB\\Test\\NativeStreamTest' => __DIR__ . '/..' . '/icewind/smb/tests/NativeStreamTest.php',
-        'Icewind\\SMB\\Test\\NotifyHandlerTest' => __DIR__ . '/..' . '/icewind/smb/tests/NotifyHandlerTest.php',
-        'Icewind\\SMB\\Test\\ParserTest' => __DIR__ . '/..' . '/icewind/smb/tests/ParserTest.php',
-        'Icewind\\SMB\\Test\\ServerTest' => __DIR__ . '/..' . '/icewind/smb/tests/ServerTest.php',
-        'Icewind\\SMB\\Test\\ShareTest' => __DIR__ . '/..' . '/icewind/smb/tests/ShareTest.php',
-        'Icewind\\SMB\\Test\\TestCase' => __DIR__ . '/..' . '/icewind/smb/tests/TestCase.php',
         'Icewind\\SMB\\TimeZoneProvider' => __DIR__ . '/..' . '/icewind/smb/src/TimeZoneProvider.php',
         'Icewind\\SMB\\Wrapped\\Connection' => __DIR__ . '/..' . '/icewind/smb/src/Wrapped/Connection.php',
         'Icewind\\SMB\\Wrapped\\ErrorCodes' => __DIR__ . '/..' . '/icewind/smb/src/Wrapped/ErrorCodes.php',
@@ -99,6 +91,7 @@ class ComposerStaticInit98fe9b281934250b3a93f69a5ce843b3
         'Icewind\\SMB\\Wrapped\\Server' => __DIR__ . '/..' . '/icewind/smb/src/Wrapped/Server.php',
         'Icewind\\SMB\\Wrapped\\Share' => __DIR__ . '/..' . '/icewind/smb/src/Wrapped/Share.php',
         'Icewind\\Streams\\CallbackWrapper' => __DIR__ . '/..' . '/icewind/streams/src/CallbackWrapper.php',
+        'Icewind\\Streams\\CountWrapper' => __DIR__ . '/..' . '/icewind/streams/src/CountWrapper.php',
         'Icewind\\Streams\\Directory' => __DIR__ . '/..' . '/icewind/streams/src/Directory.php',
         'Icewind\\Streams\\DirectoryFilter' => __DIR__ . '/..' . '/icewind/streams/src/DirectoryFilter.php',
         'Icewind\\Streams\\DirectoryWrapper' => __DIR__ . '/..' . '/icewind/streams/src/DirectoryWrapper.php',
diff --git a/apps/files_external/3rdparty/composer/installed.json b/apps/files_external/3rdparty/composer/installed.json
index 3b2870a13b..707b876e58 100644
--- a/apps/files_external/3rdparty/composer/installed.json
+++ b/apps/files_external/3rdparty/composer/installed.json
@@ -44,17 +44,17 @@
     },
     {
         "name": "icewind/streams",
-        "version": "0.5.2",
-        "version_normalized": "0.5.2.0",
+        "version": "0.6.1",
+        "version_normalized": "0.6.1.0",
         "source": {
             "type": "git",
             "url": "https://github.com/icewind1991/Streams.git",
-            "reference": "6bfd2fdbd99319f5e010d0a684409189a562cb1e"
+            "reference": "0a78597117d8a02937ea05206f219294449fb06e"
         },
         "dist": {
             "type": "zip",
-            "url": "https://api.github.com/repos/icewind1991/Streams/zipball/6bfd2fdbd99319f5e010d0a684409189a562cb1e",
-            "reference": "6bfd2fdbd99319f5e010d0a684409189a562cb1e",
+            "url": "https://api.github.com/repos/icewind1991/Streams/zipball/0a78597117d8a02937ea05206f219294449fb06e",
+            "reference": "0a78597117d8a02937ea05206f219294449fb06e",
             "shasum": ""
         },
         "require": {
@@ -64,7 +64,7 @@
             "phpunit/phpunit": "^4.8",
             "satooshi/php-coveralls": "v1.0.0"
         },
-        "time": "2016-12-02T14:21:23+00:00",
+        "time": "2018-04-24T09:07:38+00:00",
         "type": "library",
         "installation-source": "dist",
         "autoload": {
diff --git a/apps/files_external/3rdparty/icewind/streams/.travis.yml b/apps/files_external/3rdparty/icewind/streams/.travis.yml
index d2e1afaad6..68efcd2c74 100644
--- a/apps/files_external/3rdparty/icewind/streams/.travis.yml
+++ b/apps/files_external/3rdparty/icewind/streams/.travis.yml
@@ -4,11 +4,8 @@ php:
   - 5.5
   - 5.6
   - 7.0
-  - hhvm
-
-matrix:
-  allow_failures:
-    - php: hhvm # due to facebook/hhvm#3321
+  - 7.1
+  - 7.2
 
 env:
   global:
diff --git a/apps/files_external/3rdparty/icewind/streams/README.md b/apps/files_external/3rdparty/icewind/streams/README.md
index ca13db28e4..88ab2dd92a 100644
--- a/apps/files_external/3rdparty/icewind/streams/README.md
+++ b/apps/files_external/3rdparty/icewind/streams/README.md
@@ -1,4 +1,4 @@
-#Streams#
+# Streams #
 
 [![Build Status](https://travis-ci.org/icewind1991/Streams.svg?branch=master)](https://travis-ci.org/icewind1991/Streams)
 [![Coverage Status](https://img.shields.io/coveralls/icewind1991/Streams.svg)](https://coveralls.io/r/icewind1991/Streams?branch=master)
@@ -6,7 +6,7 @@
 
 Generic stream wrappers for php.
 
-##CallBackWrapper##
+## CallBackWrapper ##
 
 A `CallBackWrapper` can be used to register callbacks on read, write and closing of the stream,
 it wraps an existing stream and can thus be used for any stream in php
diff --git a/apps/files_external/3rdparty/icewind/streams/src/CountWrapper.php b/apps/files_external/3rdparty/icewind/streams/src/CountWrapper.php
new file mode 100644
index 0000000000..8b86ab9187
--- /dev/null
+++ b/apps/files_external/3rdparty/icewind/streams/src/CountWrapper.php
@@ -0,0 +1,106 @@
+<?php
+/**
+ * @copyright Copyright (c) 2018 Robin Appelman <robin@icewind.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program 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 program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace Icewind\Streams;
+
+/**
+ * Wrapper that counts the amount of data read and written
+ *
+ * The following options should be passed in the context when opening the stream
+ * [
+ *     'callback' => [
+ *        'source'  => resource
+ *        'callback'    => function($readCount, $writeCount){}
+ *     ]
+ * ]
+ *
+ * The callback will be called when the stream is closed
+ */
+class CountWrapper extends Wrapper {
+	/**
+	 * @var int
+	 */
+	protected $readCount = 0;
+
+	/**
+	 * @var int
+	 */
+	protected $writeCount = 0;
+
+	/**
+	 * @var callable
+	 */
+	protected $callback;
+
+	/**
+	 * Wraps a stream with the provided callbacks
+	 *
+	 * @param resource $source
+	 * @param callable $callback
+	 * @return resource
+	 *
+	 * @throws \BadMethodCallException
+	 */
+	public static function wrap($source, $callback) {
+		if (!is_callable($callback)) {
+			throw new \InvalidArgumentException('Invalid or missing callback');
+		}
+		$context = stream_context_create(array(
+			'count' => array(
+				'source' => $source,
+				'callback' => $callback
+			)
+		));
+		return Wrapper::wrapSource($source, $context, 'callback', '\Icewind\Streams\CountWrapper');
+	}
+
+	protected function open() {
+		$context = $this->loadContext('count');
+		$this->callback = $context['callback'];
+		return true;
+	}
+
+	public function dir_opendir($path, $options) {
+		return $this->open();
+	}
+
+	public function stream_open($path, $mode, $options, &$opened_path) {
+		return $this->open();
+	}
+
+	public function stream_read($count) {
+		$result = parent::stream_read($count);
+		$this->readCount += strlen($result);
+		return $result;
+	}
+
+	public function stream_write($data) {
+		$result = parent::stream_write($data);
+		$this->writeCount += strlen($data);
+		return $result;
+	}
+
+	public function stream_close() {
+		$result = parent::stream_close();
+		call_user_func($this->callback, $this->readCount, $this->writeCount);
+		return $result;
+	}
+}
diff --git a/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php b/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php
index 8e52eff9a0..babd2c1a0b 100644
--- a/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php
+++ b/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php
@@ -26,12 +26,15 @@ abstract class Wrapper implements File, Directory {
 	protected $source;
 
 	protected static function wrapSource($source, $context, $protocol, $class) {
+		if (!is_resource($source)) {
+			throw new \BadMethodCallException();
+		}
 		try {
 			stream_wrapper_register($protocol, $class);
-			if (@rewinddir($source) === false) {
-				$wrapped = fopen($protocol . '://', 'r+', false, $context);
-			} else {
+			if (self::isDirectoryHandle($source)) {
 				$wrapped = opendir($protocol . '://', $context);
+			} else {
+				$wrapped = fopen($protocol . '://', 'r+', false, $context);
 			}
 		} catch (\BadMethodCallException $e) {
 			stream_wrapper_unregister($protocol);
@@ -41,6 +44,11 @@ abstract class Wrapper implements File, Directory {
 		return $wrapped;
 	}
 
+	protected static function isDirectoryHandle($resource) {
+		$meta = stream_get_meta_data($resource);
+		return $meta['stream_type'] == 'dir';
+	}
+
 	/**
 	 * Load the source from the stream context and return the context options
 	 *