com.infinities.skyport.vnc.impl.LocalWebsockifyService.java Source code

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Here is the source code for com.infinities.skyport.vnc.impl.LocalWebsockifyService.java

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/*******************************************************************************
 * Copyright 2015 InfinitiesSoft Solutions Inc.
 *
 * Licensed 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 com.infinities.skyport.vnc.impl;

import static com.google.common.base.Preconditions.checkNotNull;

import java.util.Collection;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.mgt.SecurityManager;
import org.jboss.netty.channel.Channel;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.infinities.skyport.model.console.ConsoleType;
import com.infinities.skyport.model.console.ServerConfiguration;
import com.infinities.skyport.model.console.WebsockifyProfile;
import com.infinities.skyport.service.WebsockifyService;
import com.infinities.skyport.vnc.util.AvailablePortFinder;
import com.infinities.skyport.websockify.SSLSetting;
import com.infinities.skyport.websockify.WebsockifyServer;
import com.netiq.websockify.PortUnificationHandler;
import com.netiq.websockify.WebsockifySslContext;

public class LocalWebsockifyService implements WebsockifyService {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    private static final Logger logger = LoggerFactory.getLogger(LocalWebsockifyService.class);
    private WebsockifyServer skyportWebsockifyServer;
    private Map<String, Channel> channelMap;
    // private static String SEPERATOR = ":";
    private final int directProxyTimeout = 5000;
    private org.apache.shiro.mgt.SecurityManager securityManager;
    private AvailablePortFinder portFinder;
    private SSLSetting sslSetting;
    private final ServerConfiguration configuration;

    public LocalWebsockifyService(ServerConfiguration configuration) {
        this.configuration = configuration;
    }

    @Override
    public synchronized WebsockifyProfile sockify(WebsockifyProfile profile) {
        checkNotNull(profile.getTargetHost());
        checkNotNull(profile.getTargetPort());
        checkNotNull(profile.getToken());

        PortUnificationHandler.setConnectionToFirstMessageTimeout(directProxyTimeout);
        int port = portFinder.getNextAvailable();
        profile.setSourcePort(port);

        logger.debug("sockify sourcePort:{}, targetHost:{}, targetPort:{}, host:{}, username:{}",
                new Object[] { profile.getSourcePort(), profile.getTargetHost(), profile.getTargetPort(),
                        profile.getHost(), profile.getUsername() });

        logger.debug("profile:{}", profile);

        Channel channel = skyportWebsockifyServer.connect(profile, sslSetting, configuration, securityManager);

        Channel oldChannel = channelMap.put(profile.getToken(), channel);
        skyportWebsockifyServer.close(oldChannel);

        profile.setHost(configuration.getIp());
        profile.setPath(configPath(profile.getConsoleType()));
        profile.setPort(Integer.parseInt(configuration.getPort()));
        profile.setRequireSSL(configuration.isEnableSSL());

        return profile;

    }

    private String configPath(ConsoleType consoleType) {
        switch (consoleType) {
        case RDP:
            return configuration.getRdpPath();
        case SPICE:
        case VNC:
        case XVPVNC:
            return configuration.getPath();
        case SSH:
        case VPSSH:
            return configuration.getSshPath();
        default:
            throw new IllegalArgumentException("unimplemented console type:" + consoleType);

        }
    }

    public WebsockifyServer getSkyportWebsockifyServer() {
        return skyportWebsockifyServer;
    }

    @Override
    public void setWebsockifyServer(WebsockifyServer skyportWebsockifyServer) {
        this.skyportWebsockifyServer = skyportWebsockifyServer;
    }

    @Override
    public void close() {
        if (channelMap != null) {
            final Collection<Channel> set = channelMap.values();
            for (Channel channel : set) {
                skyportWebsockifyServer.close(channel);
            }
        }
    }

    @Override
    public WebsockifyProfile release(WebsockifyProfile profile) {
        checkNotNull(profile.getToken());

        logger.debug("release token:{}", new Object[] { profile.getToken() });

        Channel channel = channelMap.remove(profile.getToken());
        if (channel != null) {
            skyportWebsockifyServer.close(channel);
        }
        return profile;
    }

    // public org.apache.shiro.mgt.SecurityManager getSecurityManager() {
    // return securityManager;
    // }

    @Override
    public void setSecurityManager(Object securityManager) {
        this.securityManager = (SecurityManager) securityManager;
    }

    @Override
    public void initialize() {
        sslSetting = SSLSetting.OFF;
        boolean requireSSL = configuration.isRequireSSL();
        boolean enableSSL = configuration.isEnableSSL();
        String keystore = configuration.getKeystoreFile();
        String keystoreType = configuration.getKeystoreType();
        String keystorePassword = configuration.getKeystorePass();
        String keystoreKeyPassword = configuration.getKeystoreKeyPass();

        if (requireSSL)
            sslSetting = SSLSetting.REQUIRED;
        else if (enableSSL)
            sslSetting = SSLSetting.ON;

        if (sslSetting != SSLSetting.OFF) {
            if (keystore == null || keystore.isEmpty()) {
                throw new IllegalArgumentException("No keystore specified.");
            }

            if (keystorePassword == null || keystorePassword.isEmpty()) {
                throw new IllegalArgumentException("No keystore password specified.");
            }

            if (keystoreKeyPassword == null || keystoreKeyPassword.isEmpty()) {
                keystoreKeyPassword = keystorePassword;
            }

            try {
                WebsockifySslContext.validateKeystore(keystoreType, keystore, keystorePassword,
                        keystoreKeyPassword);
            } catch (Exception e) {
                throw new IllegalStateException("Error validating keystore", e);
            }
        }

        if (sslSetting != SSLSetting.OFF)
            logger.debug("SSL is {}", (sslSetting == SSLSetting.REQUIRED ? "required." : "enabled."));

        channelMap = new ConcurrentHashMap<String, Channel>();
        SecurityUtils.setSecurityManager(securityManager);
        portFinder = new AvailablePortFinder(configuration.getMinPort(), configuration.getMaxPort());
    }

}