A new port forwarding method for upnp was added. If this method is enabled, yacy automatically determines an UPnP capable internet gateway and configures the gateway port forwarding settings properly. git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2328 6c8d7289-2bf4-0310-a012-ef5d649a1542pull/1/head
theli
19 years ago
parent
417ed5102e
commit
6e676224d0
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// serverPortForwardingSch.java
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// -------------------------------------
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// part of YACY
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// (C) by Michael Peter Christen; mc@anomic.de
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// first published on http://www.anomic.de
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// Frankfurt, Germany, 2004
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//
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// This file ist contributed by Martin Thelian
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//
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// $LastChangedDate: 2006-02-20 23:57:42 +0100 (Mo, 20 Feb 2006) $
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// $LastChangedRevision: 1715 $
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// $LastChangedBy: borg-0300 $
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// Using this software in any meaning (reading, learning, copying, compiling,
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// running) means that you agree that the Author(s) is (are) not responsible
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// for cost, loss of data or any harm that may be caused directly or indirectly
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// by usage of this softare or this documentation. The usage of this software
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// is on your own risk. The installation and usage (starting/running) of this
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// software may allow other people or application to access your computer and
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// any attached devices and is highly dependent on the configuration of the
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// software which must be done by the user of the software; the author(s) is
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// (are) also not responsible for proper configuration and usage of the
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// software, even if provoked by documentation provided together with
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// the software.
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//
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// Any changes to this file according to the GPL as documented in the file
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// gpl.txt aside this file in the shipment you received can be done to the
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// lines that follows this copyright notice here, but changes must not be
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// done inside the copyright notive above. A re-distribution must contain
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// the intact and unchanged copyright notice.
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// Contributions and changes to the program code must be marked as such.
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package de.anomic.server.portForwarding.sch;
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import java.io.IOException;
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import com.jcraft.jsch.JSch;
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import com.jcraft.jsch.ProxyHTTP;
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import com.jcraft.jsch.Session;
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import com.jcraft.jsch.UIKeyboardInteractive;
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import com.jcraft.jsch.UserInfo;
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import de.anomic.server.serverInstantThread;
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import de.anomic.server.serverSwitch;
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import de.anomic.server.logging.serverLog;
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import de.anomic.server.portForwarding.serverPortForwarding;
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import de.anomic.yacy.yacyClient;
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import de.anomic.yacy.yacyCore;
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public class serverPortForwardingSch implements serverPortForwarding{
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/* ========================================================================
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* Constants needed to read properties from the configuration file
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* ======================================================================== */
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public static final String FORWARDING_HOST = "portForwarding.sch.Host";
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public static final String FORWARDING_HOST_PORT = "portForwarding.sch.HostPort";
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public static final String FORWARDING_HOST_USER = "portForwarding.sch.HostUser";
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public static final String FORWARDING_HOST_PWD = "portForwarding.sch.HostPwd";
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public static final String FORWARDING_PORT = "portForwarding.sch.Port";
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public static final String FORWARDING_USE_PROXY = "portForwarding.sch.UseProxy";
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/* ========================================================================
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* Other object fields
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* ======================================================================== */
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private serverSwitch switchboard;
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private String forwardingHost;
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private int forwardingHostPort;
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private String forwardingHostUser;
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private String forwardingHostPwd;
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private int forwardingPort;
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private boolean useProxy;
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private String remoteProxyHost;
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private int remoteProxyPort;
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private String localHost;
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private int localHostPort;
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private static Session session;
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private static serverInstantThread sessionWatcher;
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private serverLog log;
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public serverPortForwardingSch() {
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super();
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this.log = new serverLog("PORT_FORWARDING_SCH");
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}
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public void init(
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serverSwitch switchboard,
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String localHost,
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int localPort
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) throws Exception {
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try {
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this.log.logFine("Initializing port forwarding via sch ...");
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this.switchboard = switchboard;
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this.forwardingHost = switchboard.getConfig(FORWARDING_HOST,"localhost");
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this.forwardingHostPort = Integer.valueOf(switchboard.getConfig(FORWARDING_HOST_PORT,"8080")).intValue();
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this.forwardingHostUser = switchboard.getConfig(FORWARDING_HOST_USER,"xxx");
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this.forwardingHostPwd = switchboard.getConfig(FORWARDING_HOST_PWD,"xxx");
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this.forwardingPort = Integer.valueOf(switchboard.getConfig(FORWARDING_PORT,"8080")).intValue();
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this.useProxy = Boolean.valueOf(switchboard.getConfig(FORWARDING_USE_PROXY,"false")).booleanValue();
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this.localHost = localHost;
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this.localHostPort = localPort;
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// load remote proxy data
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this.remoteProxyHost = switchboard.getConfig("remoteProxyHost","");
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try {
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this.remoteProxyPort = Integer.parseInt(switchboard.getConfig("remoteProxyPort","3128"));
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} catch (NumberFormatException e) {
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remoteProxyPort = 3128;
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}
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// checking if all needed libs are availalbe
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String javaClassPath = System.getProperty("java.class.path");
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if (javaClassPath.indexOf("jsch") == -1) {
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throw new IllegalStateException("Missing library.");
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}
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} catch (Exception e) {
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this.log.logSevere("Unable to initialize port forwarding.",e);
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throw e;
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}
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}
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public String getHost() {
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return this.forwardingHost;
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}
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public int getPort() {
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return this.forwardingPort;
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}
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public synchronized void connect() throws IOException {
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try{
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if ((session != null) && (session.isConnected()))
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throw new IOException("Session already connected");
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this.log.logInfo("Trying to connect to remote port forwarding host " + this.forwardingHostUser + "@" + this.forwardingHost + ":" + this.forwardingHostPort);
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JSch jsch=new JSch();
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session=jsch.getSession(this.forwardingHostUser, this.forwardingHost, this.forwardingHostPort);
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session.setPassword(this.forwardingHostPwd);
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/*
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* Setting the StrictHostKeyChecking to ignore unknown
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* hosts because of a missing known_hosts file ...
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*/
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java.util.Properties config = new java.util.Properties();
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config.put("StrictHostKeyChecking","no");
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session.setConfig(config);
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// setting the proxy that should be used
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if (this.useProxy) {
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session.setProxy(new ProxyHTTP(this.remoteProxyHost, this.remoteProxyPort));
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}
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// username and password will be given via UserInfo interface.
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UserInfo ui= new MyUserInfo(this.forwardingHostPwd);
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session.setUserInfo(ui);
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// trying to connect ...
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session.connect();
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// activating remote port forwarding
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session.setPortForwardingR(this.forwardingPort, this.localHost, this.localHostPort);
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// using a timer task to control if the session remains open
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if (sessionWatcher == null) {
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this.log.logFine("Deploying port forwarding session watcher thread.");
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this.switchboard.deployThread("portForwardingWatcher", "Remote Port Forwarding Watcher", "this thread is used to detect broken connections and to re-establish it if necessary.", null,
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sessionWatcher = new serverInstantThread(this, "reconnect", null), 30000,30000,30000,1000);
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sessionWatcher.setSyncObject(new Object());
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}
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this.log.logInfo("Remote port forwarding connection established: " +
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this.forwardingHost+ ":" + this.forwardingPort + " -> " +
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this.localHost + ":" + this.localHostPort);
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}
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catch(Exception e){
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this.log.logSevere("Unable to connect to remote port forwarding host.",e);
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throw new IOException(e.getMessage());
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}
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}
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public synchronized boolean reconnect() throws IOException {
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if ((!this.isConnected()) && (!Thread.currentThread().isInterrupted())) {
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this.log.logFine("Trying to reconnect to port forwarding host.");
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this.disconnect();
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this.connect();
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return this.isConnected();
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}
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return false;
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}
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public synchronized void disconnect() throws IOException {
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if (session == null) throw new IOException("No connection established.");
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// terminating port watcher thread
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this.log.logFine("Terminating port forwarding session watcher thread.");
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this.switchboard.terminateThread("portForwardingWatcher",true);
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sessionWatcher = null;
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// disconnection the session
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try {
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session.disconnect();
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this.log.logFine("Successfully disconnected from port forwarding host.");
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} catch (Exception e) {
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this.log.logSevere("Error while trying to disconnect from port forwarding host.",e);
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throw new IOException(e.getMessage());
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}
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}
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public synchronized boolean isConnected() {
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if (session == null) return false;
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if (!session.isConnected()) return false;
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int urls = yacyClient.queryUrlCount(yacyCore.seedDB.mySeed);
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return !(urls < 0);
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}
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class MyUserInfo
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implements UserInfo, UIKeyboardInteractive {
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String passwd;
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public MyUserInfo(String password) {
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this.passwd = password;
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}
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public String getPassword() {
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return this.passwd;
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}
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public boolean promptYesNo(String str){
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System.err.println("User was prompted from: " + str);
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return true;
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}
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public String getPassphrase() {
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return null;
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}
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public boolean promptPassphrase(String message) {
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System.out.println("promptPassphrase : " + message);
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return false;
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}
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public boolean promptPassword(String message) {
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System.out.println("promptPassword : " + message);
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return true;
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}
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/**
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* @see com.jcraft.jsch.UserInfo#showMessage(java.lang.String)
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*/
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public void showMessage(String message) {
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System.out.println("Sch has tried to show the following message to the user: " + message);
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}
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public String[] promptKeyboardInteractive(String destination,
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String name,
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String instruction,
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String[] prompt,
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boolean[] echo) {
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System.out.println("User was prompted using interactive-keyboard: " +
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"\n\tDestination: " + destination +
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"\n\tName: " + name +
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"\n\tInstruction: " + instruction +
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"\n\tPrompt: " + arrayToString2(prompt,"|") +
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"\n\techo: " + arrayToString2(echo,"|"));
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if ((prompt.length >= 1) && (prompt[0].startsWith("Password")))
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return new String[]{this.passwd};
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return new String[]{};
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}
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String arrayToString2(String[] a, String separator) {
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StringBuffer result = new StringBuffer(); // start with first element
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if (a.length > 0) {
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result.append(a[0]);
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for (int i=1; i<a.length; i++) {
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result.append(separator);
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result.append(a[i]);
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}
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}
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return result.toString();
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}
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String arrayToString2(boolean[] a, String separator) {
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StringBuffer result = new StringBuffer(); // start with first element
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if (a.length > 0) {
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result.append(a[0]);
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for (int i=1; i<a.length; i++) {
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result.append(separator);
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result.append(a[i]);
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}
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}
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return result.toString();
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}
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}
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}
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@ -0,0 +1,63 @@
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// serverPortForwarding.java
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// -------------------------------------
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// part of YACY
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||||||
|
// (C) by Michael Peter Christen; mc@anomic.de
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|
// first published on http://www.anomic.de
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|
// Frankfurt, Germany, 2004
|
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|
//
|
||||||
|
// This file ist contributed by Martin Thelian
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||||||
|
//
|
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|
// $LastChangedDate: 2006-02-20 23:57:42 +0100 (Mo, 20 Feb 2006) $
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|
// $LastChangedRevision: 1715 $
|
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|
// $LastChangedBy: borg-0300 $
|
||||||
|
//
|
||||||
|
// This program is free software; you can redistribute it and/or modify
|
||||||
|
// it under the terms of the GNU General Public License as published by
|
||||||
|
// the Free Software Foundation; either version 2 of the License, or
|
||||||
|
// (at your option) any later version.
|
||||||
|
//
|
||||||
|
// This program is distributed in the hope that it will be useful,
|
||||||
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
// GNU General Public License for more details.
|
||||||
|
//
|
||||||
|
// You should have received a copy of the GNU General Public License
|
||||||
|
// along with this program; if not, write to the Free Software
|
||||||
|
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||||
|
//
|
||||||
|
// Using this software in any meaning (reading, learning, copying, compiling,
|
||||||
|
// running) means that you agree that the Author(s) is (are) not responsible
|
||||||
|
// for cost, loss of data or any harm that may be caused directly or indirectly
|
||||||
|
// by usage of this softare or this documentation. The usage of this software
|
||||||
|
// is on your own risk. The installation and usage (starting/running) of this
|
||||||
|
// software may allow other people or application to access your computer and
|
||||||
|
// any attached devices and is highly dependent on the configuration of the
|
||||||
|
// software which must be done by the user of the software; the author(s) is
|
||||||
|
// (are) also not responsible for proper configuration and usage of the
|
||||||
|
// software, even if provoked by documentation provided together with
|
||||||
|
// the software.
|
||||||
|
//
|
||||||
|
// Any changes to this file according to the GPL as documented in the file
|
||||||
|
// gpl.txt aside this file in the shipment you received can be done to the
|
||||||
|
// lines that follows this copyright notice here, but changes must not be
|
||||||
|
// done inside the copyright notive above. A re-distribution must contain
|
||||||
|
// the intact and unchanged copyright notice.
|
||||||
|
// Contributions and changes to the program code must be marked as such.
|
||||||
|
|
||||||
|
package de.anomic.server.portForwarding;
|
||||||
|
|
||||||
|
import java.io.IOException;
|
||||||
|
|
||||||
|
import de.anomic.server.serverSwitch;
|
||||||
|
|
||||||
|
public interface serverPortForwarding {
|
||||||
|
public void init(serverSwitch switchboard, String localHost, int localPort) throws Exception;
|
||||||
|
|
||||||
|
public String getHost();
|
||||||
|
public int getPort();
|
||||||
|
|
||||||
|
public void connect() throws IOException;
|
||||||
|
public void disconnect() throws IOException;
|
||||||
|
public boolean reconnect() throws IOException;
|
||||||
|
public boolean isConnected();
|
||||||
|
}
|
||||||
@ -0,0 +1,174 @@
|
|||||||
|
package de.anomic.server.portForwarding.upnp;
|
||||||
|
|
||||||
|
import java.io.IOException;
|
||||||
|
import java.net.InetAddress;
|
||||||
|
import java.net.URL;
|
||||||
|
|
||||||
|
import com.jcraft.jsch.Session;
|
||||||
|
|
||||||
|
import net.sbbi.upnp.devices.UPNPRootDevice;
|
||||||
|
import net.sbbi.upnp.impls.InternetGatewayDevice;
|
||||||
|
import net.sbbi.upnp.messages.ActionResponse;
|
||||||
|
import net.sbbi.upnp.messages.UPNPResponseException;
|
||||||
|
|
||||||
|
import de.anomic.server.serverInstantThread;
|
||||||
|
import de.anomic.server.serverSwitch;
|
||||||
|
import de.anomic.server.logging.serverLog;
|
||||||
|
import de.anomic.server.portForwarding.serverPortForwarding;
|
||||||
|
|
||||||
|
public class serverPortForwardingUpnp implements serverPortForwarding {
|
||||||
|
private InternetGatewayDevice gateway;
|
||||||
|
|
||||||
|
private serverSwitch switchboard;
|
||||||
|
|
||||||
|
private String localHost;
|
||||||
|
private int localHostPort;
|
||||||
|
|
||||||
|
private String externalAddress = null;
|
||||||
|
|
||||||
|
private serverLog log;
|
||||||
|
|
||||||
|
public serverPortForwardingUpnp() {
|
||||||
|
super();
|
||||||
|
this.log = new serverLog("PORT_FORWARDING_UPNP");
|
||||||
|
}
|
||||||
|
|
||||||
|
public void connect() throws IOException {
|
||||||
|
try {
|
||||||
|
if (this.gateway != null)
|
||||||
|
throw new IOException("Session already connected");
|
||||||
|
|
||||||
|
int timeout = 8000;
|
||||||
|
try {
|
||||||
|
// trying to get all internet gateways on the local network
|
||||||
|
this.log.logInfo("Trying to find all available internet gateways.");
|
||||||
|
InternetGatewayDevice[] IGDs = InternetGatewayDevice.getDevices(timeout);
|
||||||
|
boolean mapped = false;
|
||||||
|
if ( IGDs != null ) {
|
||||||
|
for ( int i = 0; i < IGDs.length; i++ ) {
|
||||||
|
|
||||||
|
this.gateway = IGDs[i];
|
||||||
|
this.log.logInfo("Found device " + this.gateway.getIGDRootDevice().getModelName() );
|
||||||
|
this.log.logInfo("NAT table size is " + this.gateway.getNatTableSize() );
|
||||||
|
|
||||||
|
// now let's open the port
|
||||||
|
this.log.logInfo("Adding port mapping ...");
|
||||||
|
mapped = this.gateway.addPortMapping(
|
||||||
|
"YaCy port forwarding",
|
||||||
|
null,
|
||||||
|
this.localHostPort,
|
||||||
|
this.localHostPort,
|
||||||
|
this.localHost,
|
||||||
|
0,
|
||||||
|
"TCP"
|
||||||
|
);
|
||||||
|
|
||||||
|
if ( mapped ) {
|
||||||
|
this.log.logInfo("Gateway port " + this.localHostPort + " mapped to " + this.localHost );
|
||||||
|
this.log.logInfo("Current mappings count is " + this.gateway.getNatMappingsCount() );
|
||||||
|
mapped = isConnected();
|
||||||
|
}
|
||||||
|
if (mapped) break;
|
||||||
|
}
|
||||||
|
if (!mapped) {
|
||||||
|
throw new IOException("Unable to configure the port mapping.");
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
throw new IOException("No internet gateway device found.");
|
||||||
|
}
|
||||||
|
|
||||||
|
} catch ( IOException ex ) {
|
||||||
|
throw new Exception("IOException occured during discovery or ports mapping " + ex.getMessage());
|
||||||
|
} catch( UPNPResponseException respEx ) {
|
||||||
|
throw new Exception("UPNP device unhappy " + respEx.getDetailErrorCode() + " " + respEx.getDetailErrorDescription() );
|
||||||
|
}
|
||||||
|
} catch (Exception e) {
|
||||||
|
this.gateway = null;
|
||||||
|
this.log.logSevere("Unable to connect to remote port forwarding host. ",e);
|
||||||
|
throw new IOException(e.getMessage());
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
public void disconnect() throws IOException {
|
||||||
|
if (this.gateway == null) throw new IOException("No connection established.");
|
||||||
|
|
||||||
|
boolean unmapped;
|
||||||
|
try {
|
||||||
|
this.log.logInfo("Trying to disable port mapping ...");
|
||||||
|
unmapped = this.gateway.deletePortMapping( null, this.localHostPort, "TCP" );
|
||||||
|
if ( unmapped ) {
|
||||||
|
this.log.logInfo("Port mapping disabled");
|
||||||
|
}
|
||||||
|
} catch (UPNPResponseException e) {
|
||||||
|
new IOException("Unable to disable port forwarding. " + e.getMessage());
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
public String getHost() {
|
||||||
|
if (this.gateway == null) return "";
|
||||||
|
if (this.externalAddress == null) {
|
||||||
|
try {
|
||||||
|
this.externalAddress = this.gateway.getExternalIPAddress();
|
||||||
|
} catch (Exception e) {
|
||||||
|
this.log.logWarning("Unable to get the external address of the gateway");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return this.externalAddress;
|
||||||
|
}
|
||||||
|
|
||||||
|
public int getPort() {
|
||||||
|
return this.localHostPort;
|
||||||
|
}
|
||||||
|
|
||||||
|
public void init(serverSwitch switchboard, String localHost, int localPort)
|
||||||
|
throws Exception {
|
||||||
|
try {
|
||||||
|
this.log.logFine("Initializing port forwarding via sch ...");
|
||||||
|
this.switchboard = switchboard;
|
||||||
|
|
||||||
|
if (localHost.equals("0.0.0.0")) {
|
||||||
|
this.localHost = InetAddress.getLocalHost().getHostAddress();
|
||||||
|
} else {
|
||||||
|
this.localHost = localHost;
|
||||||
|
}
|
||||||
|
this.localHostPort = localPort;
|
||||||
|
|
||||||
|
// checking if all needed libs are availalbe
|
||||||
|
String javaClassPath = System.getProperty("java.class.path");
|
||||||
|
if (javaClassPath.indexOf("sbbi-upnplib") == -1) {
|
||||||
|
throw new IllegalStateException("Missing library.");
|
||||||
|
}
|
||||||
|
|
||||||
|
// setting the proper xml parser
|
||||||
|
// if (System.getProperty("javax.xml.parsers.DocumentBuilderFactory", "").equals("")) {
|
||||||
|
// System.setProperty("javax.xml.parsers.DocumentBuilderFactory", "");
|
||||||
|
// }
|
||||||
|
|
||||||
|
} catch (Exception e) {
|
||||||
|
this.log.logSevere("Unable to initialize port forwarding.",e);
|
||||||
|
throw e;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
public boolean isConnected() {
|
||||||
|
if (this.gateway == null) return false;
|
||||||
|
try {
|
||||||
|
ActionResponse resp = this.gateway.getSpecificPortMappingEntry( null, this.localHostPort, "TCP" );
|
||||||
|
return ( resp != null );
|
||||||
|
} catch (Exception e) {
|
||||||
|
this.log.logSevere("Unable to determine the connection status");
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
public boolean reconnect() throws IOException {
|
||||||
|
if (!this.isConnected()) {
|
||||||
|
this.log.logFine("Trying to reconnect to port forwarding host.");
|
||||||
|
this.disconnect();
|
||||||
|
this.connect();
|
||||||
|
return this.isConnected();
|
||||||
|
}
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
Loading…
Reference in new issue