diff --git a/3rdparty b/3rdparty
index ae67e91bac..f2d8ba7bfe 160000
--- a/3rdparty
+++ b/3rdparty
@@ -1 +1 @@
-Subproject commit ae67e91bac6e959fb9666b997c02fb45e63aadf8
+Subproject commit f2d8ba7bfebb769835b637f01eaa602e36cdcca0
diff --git a/apps/files_external/3rdparty/composer.json b/apps/files_external/3rdparty/composer.json
index 84f1e19201..2eab8a8f7b 100644
--- a/apps/files_external/3rdparty/composer.json
+++ b/apps/files_external/3rdparty/composer.json
@@ -9,7 +9,7 @@
 	},
 	"require": {
 		"icewind/smb": "2.0.0",
-		"icewind/streams": "0.4.1"
+		"icewind/streams": "0.5.2"
 	}
 }
 
diff --git a/apps/files_external/3rdparty/composer.lock b/apps/files_external/3rdparty/composer.lock
index 305cc8dc4b..99ef5f9487 100644
--- a/apps/files_external/3rdparty/composer.lock
+++ b/apps/files_external/3rdparty/composer.lock
@@ -4,8 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "hash": "a8b4080027a432533f6d0597ad527fe7",
-    "content-hash": "8165981792437b03b39c11d28b061eda",
+    "content-hash": "0bbca3fe2d180fbc5681985bdf6b22e7",
     "packages": [
         {
             "name": "icewind/smb",
@@ -46,20 +45,20 @@
                 }
             ],
             "description": "php wrapper for smbclient and libsmbclient-php",
-            "time": "2016-12-13 13:56:55"
+            "time": "2016-12-13T13:56:55+00:00"
         },
         {
             "name": "icewind/streams",
-            "version": "0.4.1",
+            "version": "0.5.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/icewind1991/Streams.git",
-                "reference": "d3620e8dc410c86c2ba55579803679c4e0b289ac"
+                "reference": "6bfd2fdbd99319f5e010d0a684409189a562cb1e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/icewind1991/Streams/zipball/d3620e8dc410c86c2ba55579803679c4e0b289ac",
-                "reference": "d3620e8dc410c86c2ba55579803679c4e0b289ac",
+                "url": "https://api.github.com/repos/icewind1991/Streams/zipball/6bfd2fdbd99319f5e010d0a684409189a562cb1e",
+                "reference": "6bfd2fdbd99319f5e010d0a684409189a562cb1e",
                 "shasum": ""
             },
             "require": {
@@ -87,7 +86,7 @@
                 }
             ],
             "description": "A set of generic stream wrappers",
-            "time": "2016-06-02 14:37:52"
+            "time": "2016-12-02T14:21:23+00:00"
         }
     ],
     "packages-dev": [],
diff --git a/apps/files_external/3rdparty/composer/ClassLoader.php b/apps/files_external/3rdparty/composer/ClassLoader.php
index ac67d302a1..4626994fd4 100644
--- a/apps/files_external/3rdparty/composer/ClassLoader.php
+++ b/apps/files_external/3rdparty/composer/ClassLoader.php
@@ -55,6 +55,7 @@ class ClassLoader
     private $classMap = array();
     private $classMapAuthoritative = false;
     private $missingClasses = array();
+    private $apcuPrefix;
 
     public function getPrefixes()
     {
@@ -271,6 +272,26 @@ class ClassLoader
         return $this->classMapAuthoritative;
     }
 
+    /**
+     * APCu prefix to use to cache found/not-found classes, if the extension is enabled.
+     *
+     * @param string|null $apcuPrefix
+     */
+    public function setApcuPrefix($apcuPrefix)
+    {
+        $this->apcuPrefix = function_exists('apcu_fetch') && ini_get('apc.enabled') ? $apcuPrefix : null;
+    }
+
+    /**
+     * The APCu prefix in use, or null if APCu caching is not enabled.
+     *
+     * @return string|null
+     */
+    public function getApcuPrefix()
+    {
+        return $this->apcuPrefix;
+    }
+
     /**
      * Registers this instance as an autoloader.
      *
@@ -313,11 +334,6 @@ class ClassLoader
      */
     public function findFile($class)
     {
-        // work around for PHP 5.3.0 - 5.3.2 https://bugs.php.net/50731
-        if ('\\' == $class[0]) {
-            $class = substr($class, 1);
-        }
-
         // class map lookup
         if (isset($this->classMap[$class])) {
             return $this->classMap[$class];
@@ -325,6 +341,12 @@ class ClassLoader
         if ($this->classMapAuthoritative || isset($this->missingClasses[$class])) {
             return false;
         }
+        if (null !== $this->apcuPrefix) {
+            $file = apcu_fetch($this->apcuPrefix.$class, $hit);
+            if ($hit) {
+                return $file;
+            }
+        }
 
         $file = $this->findFileWithExtension($class, '.php');
 
@@ -333,6 +355,10 @@ class ClassLoader
             $file = $this->findFileWithExtension($class, '.hh');
         }
 
+        if (null !== $this->apcuPrefix) {
+            apcu_add($this->apcuPrefix.$class, $file);
+        }
+
         if (false === $file) {
             // Remember that this class does not exist.
             $this->missingClasses[$class] = true;
diff --git a/apps/files_external/3rdparty/composer/autoload_classmap.php b/apps/files_external/3rdparty/composer/autoload_classmap.php
index ba5d06f701..e6bba3a9a1 100644
--- a/apps/files_external/3rdparty/composer/autoload_classmap.php
+++ b/apps/files_external/3rdparty/composer/autoload_classmap.php
@@ -7,7 +7,6 @@ $baseDir = $vendorDir;
 
 return array(
     'Icewind\\SMB\\AbstractShare' => $vendorDir . '/icewind/smb/src/AbstractShare.php',
-    'Icewind\\SMB\\Change' => $vendorDir . '/icewind/smb/src/Change.php',
     'Icewind\\SMB\\Connection' => $vendorDir . '/icewind/smb/src/Connection.php',
     'Icewind\\SMB\\ErrorCodes' => $vendorDir . '/icewind/smb/src/ErrorCodes.php',
     'Icewind\\SMB\\Exception\\AccessDeniedException' => $vendorDir . '/icewind/smb/src/Exception/AccessDeniedException.php',
@@ -16,7 +15,6 @@ return array(
     'Icewind\\SMB\\Exception\\ConnectException' => $vendorDir . '/icewind/smb/src/Exception/ConnectException.php',
     'Icewind\\SMB\\Exception\\ConnectionException' => $vendorDir . '/icewind/smb/src/Exception/ConnectionException.php',
     'Icewind\\SMB\\Exception\\ConnectionRefusedException' => $vendorDir . '/icewind/smb/src/Exception/ConnectionRefusedException.php',
-    'Icewind\\SMB\\Exception\\DependencyException' => $vendorDir . '/icewind/smb/src/Exception/DependencyException.php',
     'Icewind\\SMB\\Exception\\Exception' => $vendorDir . '/icewind/smb/src/Exception/Exception.php',
     'Icewind\\SMB\\Exception\\FileInUseException' => $vendorDir . '/icewind/smb/src/Exception/FileInUseException.php',
     'Icewind\\SMB\\Exception\\ForbiddenException' => $vendorDir . '/icewind/smb/src/Exception/ForbiddenException.php',
@@ -33,14 +31,12 @@ return array(
     'Icewind\\SMB\\Exception\\TimedOutException' => $vendorDir . '/icewind/smb/src/Exception/TimedOutException.php',
     'Icewind\\SMB\\FileInfo' => $vendorDir . '/icewind/smb/src/FileInfo.php',
     'Icewind\\SMB\\IFileInfo' => $vendorDir . '/icewind/smb/src/IFileInfo.php',
-    'Icewind\\SMB\\INotifyHandler' => $vendorDir . '/icewind/smb/src/INotifyHandler.php',
     'Icewind\\SMB\\IShare' => $vendorDir . '/icewind/smb/src/IShare.php',
     'Icewind\\SMB\\NativeFileInfo' => $vendorDir . '/icewind/smb/src/NativeFileInfo.php',
     'Icewind\\SMB\\NativeServer' => $vendorDir . '/icewind/smb/src/NativeServer.php',
     'Icewind\\SMB\\NativeShare' => $vendorDir . '/icewind/smb/src/NativeShare.php',
     'Icewind\\SMB\\NativeState' => $vendorDir . '/icewind/smb/src/NativeState.php',
     'Icewind\\SMB\\NativeStream' => $vendorDir . '/icewind/smb/src/NativeStream.php',
-    'Icewind\\SMB\\NotifyHandler' => $vendorDir . '/icewind/smb/src/NotifyHandler.php',
     'Icewind\\SMB\\Parser' => $vendorDir . '/icewind/smb/src/Parser.php',
     'Icewind\\SMB\\RawConnection' => $vendorDir . '/icewind/smb/src/RawConnection.php',
     'Icewind\\SMB\\Server' => $vendorDir . '/icewind/smb/src/Server.php',
@@ -63,8 +59,23 @@ return array(
     'Icewind\\Streams\\IteratorDirectory' => $vendorDir . '/icewind/streams/src/IteratorDirectory.php',
     'Icewind\\Streams\\NullWrapper' => $vendorDir . '/icewind/streams/src/NullWrapper.php',
     'Icewind\\Streams\\Path' => $vendorDir . '/icewind/streams/src/Path.php',
+    'Icewind\\Streams\\PathWrapper' => $vendorDir . '/icewind/streams/src/PathWrapper.php',
     'Icewind\\Streams\\RetryWrapper' => $vendorDir . '/icewind/streams/src/RetryWrapper.php',
     'Icewind\\Streams\\SeekableWrapper' => $vendorDir . '/icewind/streams/src/SeekableWrapper.php',
+    'Icewind\\Streams\\Tests\\CallbackWrapper' => $vendorDir . '/icewind/streams/tests/CallbackWrapper.php',
+    'Icewind\\Streams\\Tests\\DirectoryFilter' => $vendorDir . '/icewind/streams/tests/DirectoryFilter.php',
+    'Icewind\\Streams\\Tests\\DirectoryWrapper' => $vendorDir . '/icewind/streams/tests/DirectoryWrapper.php',
+    'Icewind\\Streams\\Tests\\DirectoryWrapperDummy' => $vendorDir . '/icewind/streams/tests/DirectoryWrapper.php',
+    'Icewind\\Streams\\Tests\\DirectoryWrapperNull' => $vendorDir . '/icewind/streams/tests/DirectoryWrapper.php',
+    'Icewind\\Streams\\Tests\\FailWrapper' => $vendorDir . '/icewind/streams/tests/RetryWrapper.php',
+    'Icewind\\Streams\\Tests\\IteratorDirectory' => $vendorDir . '/icewind/streams/tests/IteratorDirectory.php',
+    'Icewind\\Streams\\Tests\\NullWrapper' => $vendorDir . '/icewind/streams/tests/NullWrapper.php',
+    'Icewind\\Streams\\Tests\\PartialWrapper' => $vendorDir . '/icewind/streams/tests/RetryWrapper.php',
+    'Icewind\\Streams\\Tests\\PathWrapper' => $vendorDir . '/icewind/streams/tests/PathWrapper.php',
+    'Icewind\\Streams\\Tests\\RetryWrapper' => $vendorDir . '/icewind/streams/tests/RetryWrapper.php',
+    'Icewind\\Streams\\Tests\\SeekableWrapper' => $vendorDir . '/icewind/streams/tests/SeekableWrapper.php',
+    'Icewind\\Streams\\Tests\\UrlCallBack' => $vendorDir . '/icewind/streams/tests/UrlCallBack.php',
+    'Icewind\\Streams\\Tests\\Wrapper' => $vendorDir . '/icewind/streams/tests/Wrapper.php',
     'Icewind\\Streams\\Url' => $vendorDir . '/icewind/streams/src/Url.php',
     'Icewind\\Streams\\UrlCallback' => $vendorDir . '/icewind/streams/src/UrlCallBack.php',
     'Icewind\\Streams\\Wrapper' => $vendorDir . '/icewind/streams/src/Wrapper.php',
diff --git a/apps/files_external/3rdparty/composer/autoload_static.php b/apps/files_external/3rdparty/composer/autoload_static.php
index 10c09bfc40..9fa922caea 100644
--- a/apps/files_external/3rdparty/composer/autoload_static.php
+++ b/apps/files_external/3rdparty/composer/autoload_static.php
@@ -37,7 +37,6 @@ class ComposerStaticInit98fe9b281934250b3a93f69a5ce843b3
 
     public static $classMap = array (
         'Icewind\\SMB\\AbstractShare' => __DIR__ . '/..' . '/icewind/smb/src/AbstractShare.php',
-        'Icewind\\SMB\\Change' => __DIR__ . '/..' . '/icewind/smb/src/Change.php',
         'Icewind\\SMB\\Connection' => __DIR__ . '/..' . '/icewind/smb/src/Connection.php',
         'Icewind\\SMB\\ErrorCodes' => __DIR__ . '/..' . '/icewind/smb/src/ErrorCodes.php',
         'Icewind\\SMB\\Exception\\AccessDeniedException' => __DIR__ . '/..' . '/icewind/smb/src/Exception/AccessDeniedException.php',
@@ -46,7 +45,6 @@ class ComposerStaticInit98fe9b281934250b3a93f69a5ce843b3
         'Icewind\\SMB\\Exception\\ConnectException' => __DIR__ . '/..' . '/icewind/smb/src/Exception/ConnectException.php',
         'Icewind\\SMB\\Exception\\ConnectionException' => __DIR__ . '/..' . '/icewind/smb/src/Exception/ConnectionException.php',
         'Icewind\\SMB\\Exception\\ConnectionRefusedException' => __DIR__ . '/..' . '/icewind/smb/src/Exception/ConnectionRefusedException.php',
-        'Icewind\\SMB\\Exception\\DependencyException' => __DIR__ . '/..' . '/icewind/smb/src/Exception/DependencyException.php',
         'Icewind\\SMB\\Exception\\Exception' => __DIR__ . '/..' . '/icewind/smb/src/Exception/Exception.php',
         'Icewind\\SMB\\Exception\\FileInUseException' => __DIR__ . '/..' . '/icewind/smb/src/Exception/FileInUseException.php',
         'Icewind\\SMB\\Exception\\ForbiddenException' => __DIR__ . '/..' . '/icewind/smb/src/Exception/ForbiddenException.php',
@@ -63,14 +61,12 @@ class ComposerStaticInit98fe9b281934250b3a93f69a5ce843b3
         'Icewind\\SMB\\Exception\\TimedOutException' => __DIR__ . '/..' . '/icewind/smb/src/Exception/TimedOutException.php',
         'Icewind\\SMB\\FileInfo' => __DIR__ . '/..' . '/icewind/smb/src/FileInfo.php',
         'Icewind\\SMB\\IFileInfo' => __DIR__ . '/..' . '/icewind/smb/src/IFileInfo.php',
-        'Icewind\\SMB\\INotifyHandler' => __DIR__ . '/..' . '/icewind/smb/src/INotifyHandler.php',
         'Icewind\\SMB\\IShare' => __DIR__ . '/..' . '/icewind/smb/src/IShare.php',
         'Icewind\\SMB\\NativeFileInfo' => __DIR__ . '/..' . '/icewind/smb/src/NativeFileInfo.php',
         'Icewind\\SMB\\NativeServer' => __DIR__ . '/..' . '/icewind/smb/src/NativeServer.php',
         'Icewind\\SMB\\NativeShare' => __DIR__ . '/..' . '/icewind/smb/src/NativeShare.php',
         'Icewind\\SMB\\NativeState' => __DIR__ . '/..' . '/icewind/smb/src/NativeState.php',
         'Icewind\\SMB\\NativeStream' => __DIR__ . '/..' . '/icewind/smb/src/NativeStream.php',
-        'Icewind\\SMB\\NotifyHandler' => __DIR__ . '/..' . '/icewind/smb/src/NotifyHandler.php',
         'Icewind\\SMB\\Parser' => __DIR__ . '/..' . '/icewind/smb/src/Parser.php',
         'Icewind\\SMB\\RawConnection' => __DIR__ . '/..' . '/icewind/smb/src/RawConnection.php',
         'Icewind\\SMB\\Server' => __DIR__ . '/..' . '/icewind/smb/src/Server.php',
@@ -93,8 +89,23 @@ class ComposerStaticInit98fe9b281934250b3a93f69a5ce843b3
         'Icewind\\Streams\\IteratorDirectory' => __DIR__ . '/..' . '/icewind/streams/src/IteratorDirectory.php',
         'Icewind\\Streams\\NullWrapper' => __DIR__ . '/..' . '/icewind/streams/src/NullWrapper.php',
         'Icewind\\Streams\\Path' => __DIR__ . '/..' . '/icewind/streams/src/Path.php',
+        'Icewind\\Streams\\PathWrapper' => __DIR__ . '/..' . '/icewind/streams/src/PathWrapper.php',
         'Icewind\\Streams\\RetryWrapper' => __DIR__ . '/..' . '/icewind/streams/src/RetryWrapper.php',
         'Icewind\\Streams\\SeekableWrapper' => __DIR__ . '/..' . '/icewind/streams/src/SeekableWrapper.php',
+        'Icewind\\Streams\\Tests\\CallbackWrapper' => __DIR__ . '/..' . '/icewind/streams/tests/CallbackWrapper.php',
+        'Icewind\\Streams\\Tests\\DirectoryFilter' => __DIR__ . '/..' . '/icewind/streams/tests/DirectoryFilter.php',
+        'Icewind\\Streams\\Tests\\DirectoryWrapper' => __DIR__ . '/..' . '/icewind/streams/tests/DirectoryWrapper.php',
+        'Icewind\\Streams\\Tests\\DirectoryWrapperDummy' => __DIR__ . '/..' . '/icewind/streams/tests/DirectoryWrapper.php',
+        'Icewind\\Streams\\Tests\\DirectoryWrapperNull' => __DIR__ . '/..' . '/icewind/streams/tests/DirectoryWrapper.php',
+        'Icewind\\Streams\\Tests\\FailWrapper' => __DIR__ . '/..' . '/icewind/streams/tests/RetryWrapper.php',
+        'Icewind\\Streams\\Tests\\IteratorDirectory' => __DIR__ . '/..' . '/icewind/streams/tests/IteratorDirectory.php',
+        'Icewind\\Streams\\Tests\\NullWrapper' => __DIR__ . '/..' . '/icewind/streams/tests/NullWrapper.php',
+        'Icewind\\Streams\\Tests\\PartialWrapper' => __DIR__ . '/..' . '/icewind/streams/tests/RetryWrapper.php',
+        'Icewind\\Streams\\Tests\\PathWrapper' => __DIR__ . '/..' . '/icewind/streams/tests/PathWrapper.php',
+        'Icewind\\Streams\\Tests\\RetryWrapper' => __DIR__ . '/..' . '/icewind/streams/tests/RetryWrapper.php',
+        'Icewind\\Streams\\Tests\\SeekableWrapper' => __DIR__ . '/..' . '/icewind/streams/tests/SeekableWrapper.php',
+        'Icewind\\Streams\\Tests\\UrlCallBack' => __DIR__ . '/..' . '/icewind/streams/tests/UrlCallBack.php',
+        'Icewind\\Streams\\Tests\\Wrapper' => __DIR__ . '/..' . '/icewind/streams/tests/Wrapper.php',
         'Icewind\\Streams\\Url' => __DIR__ . '/..' . '/icewind/streams/src/Url.php',
         'Icewind\\Streams\\UrlCallback' => __DIR__ . '/..' . '/icewind/streams/src/UrlCallBack.php',
         'Icewind\\Streams\\Wrapper' => __DIR__ . '/..' . '/icewind/streams/src/Wrapper.php',
diff --git a/apps/files_external/3rdparty/composer/installed.json b/apps/files_external/3rdparty/composer/installed.json
index bc71c6d045..8e065858d0 100644
--- a/apps/files_external/3rdparty/composer/installed.json
+++ b/apps/files_external/3rdparty/composer/installed.json
@@ -1,47 +1,4 @@
 [
-    {
-        "name": "icewind/streams",
-        "version": "0.4.1",
-        "version_normalized": "0.4.1.0",
-        "source": {
-            "type": "git",
-            "url": "https://github.com/icewind1991/Streams.git",
-            "reference": "d3620e8dc410c86c2ba55579803679c4e0b289ac"
-        },
-        "dist": {
-            "type": "zip",
-            "url": "https://api.github.com/repos/icewind1991/Streams/zipball/d3620e8dc410c86c2ba55579803679c4e0b289ac",
-            "reference": "d3620e8dc410c86c2ba55579803679c4e0b289ac",
-            "shasum": ""
-        },
-        "require": {
-            "php": ">=5.3"
-        },
-        "require-dev": {
-            "phpunit/phpunit": "^4.8",
-            "satooshi/php-coveralls": "v1.0.0"
-        },
-        "time": "2016-06-02 14:37:52",
-        "type": "library",
-        "installation-source": "dist",
-        "autoload": {
-            "psr-4": {
-                "Icewind\\Streams\\Tests\\": "tests/",
-                "Icewind\\Streams\\": "src/"
-            }
-        },
-        "notification-url": "https://packagist.org/downloads/",
-        "license": [
-            "MIT"
-        ],
-        "authors": [
-            {
-                "name": "Robin Appelman",
-                "email": "icewind@owncloud.com"
-            }
-        ],
-        "description": "A set of generic stream wrappers"
-    },
     {
         "name": "icewind/smb",
         "version": "v2.0.0",
@@ -64,7 +21,7 @@
         "require-dev": {
             "phpunit/phpunit": "^4.8"
         },
-        "time": "2016-12-13 13:56:55",
+        "time": "2016-12-13T13:56:55+00:00",
         "type": "library",
         "installation-source": "source",
         "autoload": {
@@ -84,5 +41,48 @@
             }
         ],
         "description": "php wrapper for smbclient and libsmbclient-php"
+    },
+    {
+        "name": "icewind/streams",
+        "version": "0.5.2",
+        "version_normalized": "0.5.2.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/icewind1991/Streams.git",
+            "reference": "6bfd2fdbd99319f5e010d0a684409189a562cb1e"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/icewind1991/Streams/zipball/6bfd2fdbd99319f5e010d0a684409189a562cb1e",
+            "reference": "6bfd2fdbd99319f5e010d0a684409189a562cb1e",
+            "shasum": ""
+        },
+        "require": {
+            "php": ">=5.3"
+        },
+        "require-dev": {
+            "phpunit/phpunit": "^4.8",
+            "satooshi/php-coveralls": "v1.0.0"
+        },
+        "time": "2016-12-02T14:21:23+00:00",
+        "type": "library",
+        "installation-source": "dist",
+        "autoload": {
+            "psr-4": {
+                "Icewind\\Streams\\Tests\\": "tests/",
+                "Icewind\\Streams\\": "src/"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "MIT"
+        ],
+        "authors": [
+            {
+                "name": "Robin Appelman",
+                "email": "icewind@owncloud.com"
+            }
+        ],
+        "description": "A set of generic stream wrappers"
     }
 ]
diff --git a/apps/files_external/3rdparty/icewind/streams/src/CallbackWrapper.php b/apps/files_external/3rdparty/icewind/streams/src/CallbackWrapper.php
index c5847b95fd..4eef55681c 100644
--- a/apps/files_external/3rdparty/icewind/streams/src/CallbackWrapper.php
+++ b/apps/files_external/3rdparty/icewind/streams/src/CallbackWrapper.php
@@ -107,6 +107,8 @@ class CallbackWrapper extends Wrapper {
 		$result = parent::stream_close();
 		if (is_callable($this->closeCallback)) {
 			call_user_func($this->closeCallback);
+			// prevent further calls by potential PHP 7 GC ghosts
+			$this->closeCallback = null;
 		}
 		return $result;
 	}
diff --git a/apps/files_external/3rdparty/icewind/streams/src/Path.php b/apps/files_external/3rdparty/icewind/streams/src/Path.php
index 46d2156b69..bef9fd5f61 100644
--- a/apps/files_external/3rdparty/icewind/streams/src/Path.php
+++ b/apps/files_external/3rdparty/icewind/streams/src/Path.php
@@ -56,7 +56,7 @@ class Path {
 
 	protected function register() {
 		if (!$this->registered) {
-			$this->appendDefaultContent($this->getProtocol(), $this->contextOptions);
+			$this->appendDefaultContent($this->contextOptions);
 			stream_wrapper_register($this->getProtocol(), $this->class);
 			$this->registered = true;
 		}
@@ -71,13 +71,17 @@ class Path {
 	/**
 	 * Add values to the default stream context
 	 *
-	 * @param string $key
 	 * @param array $values
 	 */
-	protected function appendDefaultContent($key, $values) {
+	protected function appendDefaultContent($values) {
+		if (!is_array(current($values))) {
+			$values = array($this->getProtocol() => $values);
+		}
 		$context = stream_context_get_default();
 		$defaults = stream_context_get_options($context);
-		$defaults[$key] = $values;
+		foreach ($values as $key => $value) {
+			$defaults[$key] = $value;
+		}
 		stream_context_set_default($defaults);
 	}
 
diff --git a/apps/files_external/3rdparty/icewind/streams/src/PathWrapper.php b/apps/files_external/3rdparty/icewind/streams/src/PathWrapper.php
new file mode 100644
index 0000000000..88af7e17b3
--- /dev/null
+++ b/apps/files_external/3rdparty/icewind/streams/src/PathWrapper.php
@@ -0,0 +1,25 @@
+<?php
+/**
+ * Copyright (c) 2016 Robin Appelman <icewind@owncloud.com>
+ * This file is licensed under the Licensed under the MIT license:
+ * http://opensource.org/licenses/MIT
+ */
+
+namespace Icewind\Streams;
+
+/**
+ * A string-like object that maps to an existing stream when opened
+ */
+class PathWrapper extends NullWrapper {
+	/**
+	 * @param resource $source
+	 * @return Path|string
+	 */
+	public static function getPath($source) {
+		return new Path(__CLASS__, [
+			'null' => [
+				'source' => $source
+			]
+		]);
+	}
+}
diff --git a/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php b/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php
index 53de2942ca..8e52eff9a0 100644
--- a/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php
+++ b/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php
@@ -53,7 +53,7 @@ abstract class Wrapper implements File, Directory {
 		if (isset($context[$name])) {
 			$context = $context[$name];
 		} else {
-			throw new \BadMethodCallException('Invalid context, "callable" options not set');
+			throw new \BadMethodCallException('Invalid context, "' . $name . '" options not set');
 		}
 		if (isset($context['source']) and is_resource($context['source'])) {
 			$this->setSourceStream($context['source']);