org.apache.guacamole.net.auth.simple.SimpleConnection Maven / Gradle / Ivy

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/*
 * 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.Date;
import java.util.List;
import java.util.Map;
import org.apache.guacamole.GuacamoleException;
import org.apache.guacamole.GuacamoleServerException;
import org.apache.guacamole.environment.Environment;
import org.apache.guacamole.environment.LocalEnvironment;
import org.apache.guacamole.net.GuacamoleSocket;
import org.apache.guacamole.net.GuacamoleTunnel;
import org.apache.guacamole.net.InetGuacamoleSocket;
import org.apache.guacamole.net.SSLGuacamoleSocket;
import org.apache.guacamole.net.SimpleGuacamoleTunnel;
import org.apache.guacamole.net.auth.AbstractConnection;
import org.apache.guacamole.net.auth.ConnectionRecord;
import org.apache.guacamole.net.auth.GuacamoleProxyConfiguration;
import org.apache.guacamole.protocol.ConfiguredGuacamoleSocket;
import org.apache.guacamole.protocol.GuacamoleClientInformation;
import org.apache.guacamole.protocol.GuacamoleConfiguration;

/**
 * An extremely basic Connection implementation.
 */
public class SimpleConnection extends AbstractConnection {

    /**
     * Backing configuration, containing all sensitive information.
     */
    private GuacamoleConfiguration config;

    /**
     * Creates a completely uninitialized SimpleConnection.
     */
    public SimpleConnection() {
    }

    /**
     * Creates a new SimpleConnection having the given identifier and
     * GuacamoleConfiguration.
     *
     * @param name The name to associate with this connection.
     * @param identifier The identifier to associate with this connection.
     * @param config The configuration describing how to connect to this
     *               connection.
     */
    public SimpleConnection(String name, String identifier,
            GuacamoleConfiguration config) {
        
        // Set name
        setName(name);

        // Set identifier
        setIdentifier(identifier);

        // Set config
        setConfiguration(config);
        this.config = config;

    }

    @Override
    public int getActiveConnections() {
        return 0;
    }

    @Override
    public Map getAttributes() {
        return Collections.emptyMap();
    }

    @Override
    public void setAttributes(Map attributes) {
        // Do nothing - there are no attributes
    }

    @Override
    public GuacamoleTunnel connect(GuacamoleClientInformation info)
            throws GuacamoleException {

        // Retrieve proxy configuration from environment
        Environment environment = new LocalEnvironment();
        GuacamoleProxyConfiguration proxyConfig = environment.getDefaultGuacamoleProxyConfiguration();

        // Get guacd connection parameters
        String hostname = proxyConfig.getHostname();
        int port = proxyConfig.getPort();

        GuacamoleSocket socket;

        // Determine socket type based on required encryption method
        switch (proxyConfig.getEncryptionMethod()) {

            // If guacd requires SSL, use it
            case SSL:
                socket = new ConfiguredGuacamoleSocket(
                    new SSLGuacamoleSocket(hostname, port),
                    config, info
                );
                break;

            // Connect directly via TCP if encryption is not enabled
            case NONE:
                socket = new ConfiguredGuacamoleSocket(
                    new InetGuacamoleSocket(hostname, port),
                    config, info
                );
                break;

            // Abort if encryption method is unknown
            default:
                throw new GuacamoleServerException("Unimplemented encryption method.");

        }

        return new SimpleGuacamoleTunnel(socket);
        
    }

    @Override
    public Date getLastActive() {
        return null;
    }

    @Override
    public List getHistory() throws GuacamoleException {
        return Collections.emptyList();
    }

}