GUAC-442: Restrict access to WebSocket tunnel using filter (rather than RestrictedHttpServlet like the rest of guac).

guacamole/src/main/webapp/WEB-INF/web.xml

@@ -47,6 +47,16 @@
         <url-pattern>/*</url-pattern>
     </filter-mapping>
 
+    <!-- Restrict requests to the WebSocket tunnel -->
+    <filter>
+        <filter-name>RestrictedFilter</filter-name>
+        <filter-class>org.glyptodon.guacamole.net.basic.RestrictedFilter</filter-class>
+    </filter>
+    <filter-mapping>
+        <filter-name>RestrictedFilter</filter-name>
+        <url-pattern>/websocket-tunnel</url-pattern>
+    </filter-mapping>
+
     <!-- Basic Login Servlet -->
     <servlet>
         <description>Login servlet.</description>