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The Java API for extending the main Guacamole web application. This
is not needed for authoring a new Guacamole-based web application.
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.guacamole.net.auth.simple;
import java.util.Collections;
import java.util.Map;
import java.util.Set;
import java.util.UUID;
import org.apache.guacamole.GuacamoleException;
import org.apache.guacamole.net.auth.AbstractAuthenticatedUser;
import org.apache.guacamole.net.auth.AbstractAuthenticationProvider;
import org.apache.guacamole.net.auth.AuthenticationProvider;
import org.apache.guacamole.net.auth.AuthenticatedUser;
import org.apache.guacamole.net.auth.Credentials;
import org.apache.guacamole.net.auth.UserContext;
import org.apache.guacamole.protocol.GuacamoleConfiguration;
/**
* Provides means of retrieving a set of named GuacamoleConfigurations for a
* given Credentials object. This is a simple AuthenticationProvider
* implementation intended to be easily extended. It is useful for simple
* authentication situations where access to web-based administration and
* complex users and permissions are not required.
*
* The interface provided by SimpleAuthenticationProvider is similar to that of
* the AuthenticationProvider interface of older Guacamole releases.
*/
public abstract class SimpleAuthenticationProvider
extends AbstractAuthenticationProvider {
/**
* Given an arbitrary credentials object, returns a Map containing all
* configurations authorized by those credentials. The keys of this Map
* are Strings which uniquely identify each configuration.
*
* @param credentials The credentials to use to retrieve authorized
* configurations.
* @return A Map of all configurations authorized by the given credentials,
* or null if the credentials given are not authorized.
* @throws GuacamoleException If an error occurs while retrieving
* configurations.
*/
public abstract Map
getAuthorizedConfigurations(Credentials credentials)
throws GuacamoleException;
/**
* AuthenticatedUser which contains its own predefined set of authorized
* configurations.
*/
private class SimpleAuthenticatedUser extends AbstractAuthenticatedUser {
/**
* The credentials provided when this AuthenticatedUser was
* authenticated.
*/
private final Credentials credentials;
/**
* The GuacamoleConfigurations that this AuthenticatedUser is
* authorized to use.
*/
private final Map configs;
/**
* Creates a new SimpleAuthenticatedUser associated with the given
* credentials and having access to the given Map of
* GuacamoleConfigurations.
*
* @param credentials
* The credentials provided by the user when they authenticated.
*
* @param configs
* A Map of all GuacamoleConfigurations for which this user has
* access. The keys of this Map are Strings which uniquely identify
* each configuration.
*/
public SimpleAuthenticatedUser(Credentials credentials, Map configs) {
// Store credentials and configurations
this.credentials = credentials;
this.configs = configs;
// Pull username from credentials if it exists
String username = credentials.getUsername();
if (username != null && !username.isEmpty())
setIdentifier(username);
// Otherwise generate a random username
else
setIdentifier(UUID.randomUUID().toString());
}
/**
* Returns a Map containing all GuacamoleConfigurations that this user
* is authorized to use. The keys of this Map are Strings which
* uniquely identify each configuration.
*
* @return
* A Map of all configurations for which this user is authorized.
*/
public Map getAuthorizedConfigurations() {
return configs;
}
@Override
public AuthenticationProvider getAuthenticationProvider() {
return SimpleAuthenticationProvider.this;
}
@Override
public Credentials getCredentials() {
return credentials;
}
@Override
public Set getEffectiveUserGroups() {
return Collections.emptySet();
}
}
@Override
public AuthenticatedUser authenticateUser(final Credentials credentials)
throws GuacamoleException {
// Get configurations
Map configs =
getAuthorizedConfigurations(credentials);
// Return as unauthorized if not authorized to retrieve configs
if (configs == null)
return null;
return new SimpleAuthenticatedUser(credentials, configs);
}
@Override
public UserContext getUserContext(AuthenticatedUser authenticatedUser)
throws GuacamoleException {
// Get configurations
Map configs =
getAuthorizedConfigurations(authenticatedUser.getCredentials());
// Return as unauthorized if not authorized to retrieve configs
if (configs == null)
return null;
// Return user context restricted to authorized configs
return new SimpleUserContext(this, authenticatedUser.getIdentifier(), configs, true);
}
}