1 package net.sourceforge.guacamole.net.basic.properties;
4 * Guacamole - Clientless Remote Desktop
5 * Copyright (C) 2010 Michael Jumper
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Affero General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Affero General Public License for more details.
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
21 import java.lang.reflect.InvocationTargetException;
22 import net.sourceforge.guacamole.GuacamoleException;
23 import net.sourceforge.guacamole.net.auth.AuthenticationProvider;
24 import net.sourceforge.guacamole.net.basic.GuacamoleClassLoader;
25 import net.sourceforge.guacamole.properties.GuacamoleProperty;
28 * A GuacamoleProperty whose value is the name of a class to use to
29 * authenticate users. This class must implement AuthenticationProvider.
31 * @author Michael Jumper
33 public abstract class AuthenticationProviderProperty implements GuacamoleProperty<AuthenticationProvider> {
36 public AuthenticationProvider parseValue(String authProviderClassName) throws GuacamoleException {
38 // If no property provided, return null.
39 if (authProviderClassName == null)
42 // Get auth provider instance
45 Object obj = GuacamoleClassLoader.getInstance().loadClass(authProviderClassName)
46 .getConstructor().newInstance();
48 if (!(obj instanceof AuthenticationProvider))
49 throw new GuacamoleException("Specified authentication provider class is not a AuthenticationProvider.");
51 return (AuthenticationProvider) obj;
54 catch (ClassNotFoundException e) {
55 throw new GuacamoleException("Authentication provider class not found", e);
57 catch (NoSuchMethodException e) {
58 throw new GuacamoleException("Default constructor for authentication provider not present", e);
60 catch (SecurityException e) {
61 throw new GuacamoleException("Creation of authentication provider disallowed; check your security settings", e);
63 catch (InstantiationException e) {
64 throw new GuacamoleException("Unable to instantiate authentication provider", e);
66 catch (IllegalAccessException e) {
67 throw new GuacamoleException("Unable to access default constructor of authentication provider", e);
69 catch (InvocationTargetException e) {
70 throw new GuacamoleException("Internal error in constructor of authentication provider", e.getTargetException());