Use servlet to retrieve clipboard state.

guacamole/src/main/java/org/glyptodon/guacamole/net/basic/CaptureClipboard.java

@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2013 Glyptodon LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package org.glyptodon.guacamole.net.basic;
+
+import java.io.IOException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpSession;
+import org.glyptodon.guacamole.GuacamoleException;
+import org.glyptodon.guacamole.GuacamoleServerException;
+import org.glyptodon.guacamole.net.auth.UserContext;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Servlet which dumps the current contents of the clipboard.
+ *
+ * @author Michael Jumper
+ */
+public class CaptureClipboard extends AuthenticatingHttpServlet {
+
+    /**
+     * Logger for this class.
+     */
+    private Logger logger = LoggerFactory.getLogger(CaptureClipboard.class);
+
+    /**
+     * The amount of time to wait for clipboard changes, in milliseconds.
+     */
+    private static final int CLIPBOARD_TIMEOUT = 250;
+    
+    @Override
+    protected void authenticatedService(
+            UserContext context,
+            HttpServletRequest request, HttpServletResponse response)
+    throws GuacamoleException {
+
+        // Get clipboard
+        final HttpSession session = request.getSession(true);
+        final ClipboardState clipboard = getClipboardState(session);
+        
+        // FIXME: Don't do this
+        try {
+            Thread.sleep(CLIPBOARD_TIMEOUT);
+        }
+        catch (InterruptedException e) { /* ignore */ }
+       
+        // Send clipboard contents
+        try {
+            response.setContentType("text/plain");
+            response.getWriter().print(clipboard.getContents());
+        }
+        catch (IOException e) {
+            throw new GuacamoleServerException("Unable to send clipboard contents", e);
+        }
+        
+    }
+
+}

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

@@ -59,6 +59,17 @@
         <url-pattern>/logout</url-pattern>
     </servlet-mapping>
 
+    <!-- Clipboard State Servlet -->
+    <servlet>
+        <description>Clipboard state servlet.</description>
+        <servlet-name>Clipboard</servlet-name>
+        <servlet-class>org.glyptodon.guacamole.net.basic.CaptureClipboard</servlet-class>
+    </servlet>
+    <servlet-mapping>
+        <servlet-name>Clipboard</servlet-name>
+        <url-pattern>/clipboard</url-pattern>
+    </servlet-mapping>
+
     <!-- Connection Creation Servlet -->
     <servlet>
         <description>Connection creation servlet.</description>

guacamole/src/main/webapp/client.xhtml

@@ -66,6 +66,7 @@
         <!-- guacamole-default-webapp scripts -->
         <script type="text/javascript" src="scripts/session.js"></script>
         <script type="text/javascript" src="scripts/history.js"></script>
+        <script type="text/javascript" src="scripts/service.js"></script>
         <script type="text/javascript" src="scripts/guac-ui.js"></script>
         <script type="text/javascript" src="scripts/client-ui.js"></script>
 

guacamole/src/main/webapp/scripts/client-ui.js

@@ -985,16 +985,16 @@ GuacUI.Client.attach = function(guac) {
 
     // Set local clipboard contents on cut 
     document.body.addEventListener("cut", function handle_cut(e) {
-        /* STUB */
         e.preventDefault();
-        e.clipboardData.setData("text/plain", "STUB: CUT");
+        var data = GuacamoleService.Clipboard.get();
+        e.clipboardData.setData("text/plain", data);
     }, false);
 
     // Set local clipboard contents on copy 
     document.body.addEventListener("copy", function handle_copy(e) {
-        /* STUB */
         e.preventDefault();
-        e.clipboardData.setData("text/plain", "STUB: COPY");
+        var data = GuacamoleService.Clipboard.get();
+        e.clipboardData.setData("text/plain", data);
     }, false);
 
     // Set remote clipboard contents on paste

guacamole/src/main/webapp/scripts/service.js

@@ -1410,3 +1410,28 @@ GuacamoleService.Protocols = {
     }
 
 };
+
+/**
+ * Collection of service functions which deal with the clipboard state. Each
+ * function makes an explicit HTTP query to the server, and parses the response.
+ */
+GuacamoleService.Clipboard = {
+    
+    "get" : function(parameters) {
+        
+        // Construct request URL
+        var list_url = "clipboard";
+        if (parameters) list_url += "?" + parameters;
+        
+        // Get permission list
+        var xhr = new XMLHttpRequest();
+        xhr.open("GET", list_url, false);
+        xhr.send(null);
+        
+        // Handle response
+        GuacamoleService.handleResponse(xhr);
+        return xhr.responseText;
+        
+    }
+    
+};