diff --git a/apps/workflowengine/js/requesturlplugin.js b/apps/workflowengine/js/requesturlplugin.js
new file mode 100644
index 0000000000000000000000000000000000000000..5f21d2a59fc410cfbe19986853fa9de6e86e136e
Binary files /dev/null and b/apps/workflowengine/js/requesturlplugin.js differ
diff --git a/apps/workflowengine/lib/AppInfo/Application.php b/apps/workflowengine/lib/AppInfo/Application.php
index 82a07aa59e2eb20f6eda1c3a69056b5be1685cbd..b024518c4c538fc30f8c791a5a3758b198006487 100644
--- a/apps/workflowengine/lib/AppInfo/Application.php
+++ b/apps/workflowengine/lib/AppInfo/Application.php
@@ -59,6 +59,7 @@ class Application extends \OCP\AppFramework\App {
 					'filesizeplugin',
 					'filesystemtagsplugin',
 					'requestuseragentplugin',
+					'requesturlplugin',
 					'usergroupmembershipplugin',
 				]);
 			},
diff --git a/apps/workflowengine/lib/Check/RequestURL.php b/apps/workflowengine/lib/Check/RequestURL.php
new file mode 100644
index 0000000000000000000000000000000000000000..0cae3cf7e5619ccb2d0363f345b0042b1192b8eb
--- /dev/null
+++ b/apps/workflowengine/lib/Check/RequestURL.php
@@ -0,0 +1,89 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @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 OCA\WorkflowEngine\Check;
+
+
+use OCP\IRequest;
+
+class RequestURL extends AbstractStringCheck {
+
+	/** @var string */
+	protected $url;
+
+	/** @var IRequest */
+	protected $request;
+
+	/**
+	 * @param IRequest $request
+	 */
+	public function __construct(IRequest $request) {
+		$this->request = $request;
+	}
+
+	/**
+	 * @param string $operator
+	 * @param string $value
+	 * @return bool
+	 */
+	public function executeCheck($operator, $value)  {
+		$actualValue = $this->getActualValue();
+		if (in_array($operator, ['is', '!is'])) {
+			switch ($value) {
+				case 'webdav':
+					if ($operator === 'is') {
+						return $this->isWebDAVRequest();
+					} else {
+						return !$this->isWebDAVRequest();
+					}
+			}
+		}
+		return $this->executeStringCheck($operator, $value, $actualValue);
+	}
+
+	/**
+	 * @return string
+	 */
+	protected function getActualValue() {
+		if ($this->url !== null) {
+			return $this->url;
+		}
+
+		$this->url = $this->request->getServerProtocol() . '://';// E.g. http(s) + ://
+		$this->url .= $this->request->getServerHost();// E.g. localhost
+		$this->url .= $this->request->getScriptName();// E.g. /nextcloud/index.php
+		$this->url .= $this->request->getPathInfo();// E.g. /apps/files_texteditor/ajax/loadfile
+
+		return $this->url; // E.g. https://localhost/nextcloud/index.php/apps/files_texteditor/ajax/loadfile
+	}
+
+	/**
+	 * @return bool
+	 */
+	protected function isWebDAVRequest() {
+		return substr($this->request->getScriptName(), 0 - strlen('/remote.php')) === '/remote.php' && (
+			$this->request->getPathInfo() === '/webdav' ||
+			strpos($this->request->getPathInfo(), '/webdav/') === 0 ||
+			$this->request->getPathInfo() === '/dav/files' ||
+			strpos($this->request->getPathInfo(), '/dav/files/') === 0
+		);
+	}
+}