/*
* 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.GuacamoleUnsupportedException;
import org.glyptodon.guacamole.net.auth.UserContext;
import org.glyptodon.guacamole.properties.BooleanGuacamoleProperty;
import org.glyptodon.guacamole.properties.GuacamoleProperties;
/**
* Servlet which dumps the current contents of the clipboard.
*
* @author Michael Jumper
*/
public class CaptureClipboard extends RestrictedHttpServlet {
/**
* The amount of time to wait for clipboard changes, in milliseconds.
*/
private static final int CLIPBOARD_TIMEOUT = 250;
/**
* Whether clipboard integration is enabled.
*/
public static final BooleanGuacamoleProperty INTEGRATION_ENABLED = new BooleanGuacamoleProperty() {
@Override
public String getName() { return "enable-clipboard-integration"; }
};
@Override
protected void restrictedService(
UserContext context,
HttpServletRequest request, HttpServletResponse response)
throws GuacamoleException {
// Only bother if actually enabled
if (GuacamoleProperties.getProperty(INTEGRATION_ENABLED, false)) {
// Get clipboard
final HttpSession session = request.getSession(true);
final ClipboardState clipboard = AuthenticatingFilter.getClipboardState(session);
// Send clipboard contents
try {
synchronized (clipboard) {
clipboard.waitForContents(CLIPBOARD_TIMEOUT);
response.setContentType(clipboard.getMimetype());
response.getOutputStream().write(clipboard.getContents());
}
}
catch (IOException e) {
throw new GuacamoleServerException("Unable to send clipboard contents", e);
}
}
// Otherwise, inform not supported
else
throw new GuacamoleUnsupportedException("Clipboard integration not supported");
}
}