/*
* 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.crud.users;
import java.io.IOException;
import java.util.Set;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.xml.stream.XMLOutputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamWriter;
import org.glyptodon.guacamole.GuacamoleException;
import org.glyptodon.guacamole.GuacamoleServerException;
import org.glyptodon.guacamole.net.auth.Directory;
import org.glyptodon.guacamole.net.auth.User;
import org.glyptodon.guacamole.net.auth.UserContext;
import org.glyptodon.guacamole.net.basic.RestrictedHttpServlet;
/**
* Simple HttpServlet which outputs XML containing a list of all visible users.
*
* @author Michael Jumper
*/
public class List extends RestrictedHttpServlet {
@Override
protected void restrictedService(
UserContext context,
HttpServletRequest request, HttpServletResponse response)
throws GuacamoleException {
// Do not cache
response.setHeader("Cache-Control", "no-cache");
// Write XML content type
response.setHeader("Content-Type", "text/xml");
// Set encoding
response.setCharacterEncoding("UTF-8");
// Write actual XML
try {
// Get user directory
Directory<String, User> directory = context.getUserDirectory();
// Get users
Set<String> users = directory.getIdentifiers();
XMLOutputFactory outputFactory = XMLOutputFactory.newInstance();
XMLStreamWriter xml = outputFactory.createXMLStreamWriter(response.getWriter());
// Begin document
xml.writeStartDocument();
xml.writeStartElement("users");
// For each entry, write corresponding user element
for (String username : users) {
// Get user
User user = directory.get(username);
// Write user
xml.writeEmptyElement("user");
xml.writeAttribute("name", user.getUsername());
}
// End document
xml.writeEndElement();
xml.writeEndDocument();
}
catch (XMLStreamException e) {
throw new GuacamoleServerException(
"Unable to write configuration list XML.", e);
}
catch (IOException e) {
throw new GuacamoleServerException(
"I/O error writing configuration list XML.", e);
}
}
}