public AuthenticatorWindow() {
    SESecurityManager.addPasswordListener(this);

    // System.out.println( "AuthenticatorWindow");

    Map cache = COConfigurationManager.getMapParameter(CONFIG_PARAM, new HashMap());

    try {
      Iterator it = cache.entrySet().iterator();

      while (it.hasNext()) {

        Map.Entry entry = (Map.Entry) it.next();

        String key = (String) entry.getKey();
        Map value = (Map) entry.getValue();

        String user = new String((byte[]) value.get("user"), "UTF-8");
        char[] pw = new String((byte[]) value.get("pw"), "UTF-8").toCharArray();

        auth_cache.put(key, new authCache(key, new PasswordAuthentication(user, pw), true));
      }

    } catch (Throwable e) {

      COConfigurationManager.setParameter(CONFIG_PARAM, new HashMap());

      Debug.printStackTrace(e);
    }
  }
Пример #2
0
  static void readConfig() {
    tracker_ip = COConfigurationManager.getStringParameter("Tracker IP", "");

    tracker_ip = UrlUtils.expandIPV6Host(tracker_ip);

    String override_ips = COConfigurationManager.getStringParameter("Override Ip", "");

    StringTokenizer tok = new StringTokenizer(override_ips, ";");

    Map new_override_map = new HashMap();

    while (tok.hasMoreTokens()) {

      String ip = tok.nextToken().trim();

      if (ip.length() > 0) {

        new_override_map.put(AENetworkClassifier.categoriseAddress(ip), ip);
      }
    }

    override_map = new_override_map;

    InetAddress bad = NetworkAdmin.getSingleton().getSingleHomedServiceBindAddress();

    if (bad == null || bad.isAnyLocalAddress()) {

      bind_ip = "";

    } else {

      bind_ip = bad.getHostAddress();
    }
  }
Пример #3
0
  public static void setAZTracker(URL tracker_url, boolean az_tracker) {
    String key = tracker_url.getHost() + ":" + tracker_url.getPort();

    synchronized (az_trackers) {
      boolean changed = false;

      if (az_trackers.get(key) == null) {

        if (az_tracker) {

          az_trackers.put(key, new Long(SystemTime.getCurrentTime()));

          changed = true;
        }
      } else {

        if (!az_tracker) {

          if (az_trackers.remove(key) != null) {

            changed = true;
          }
        }
      }

      if (changed) {

        COConfigurationManager.setParameter("Tracker Client AZ Instances", az_trackers);
      }
    }
  }
Пример #4
0
  public static String getPublicIPOverride() {
    String explicit_ips = COConfigurationManager.getStringParameter("Override Ip", "");

    if (explicit_ips.length() > 0) {

      StringTokenizer tok = new StringTokenizer(explicit_ips, ";");

      while (tok.hasMoreTokens()) {

        String this_address = tok.nextToken().trim();

        if (this_address.length() > 0) {

          String cat = AENetworkClassifier.categoriseAddress(this_address);

          if (cat == AENetworkClassifier.AT_PUBLIC) {

            return (this_address);
          }
        }
      }
    }

    return (null);
  }
Пример #5
0
  static {
    COConfigurationManager.addListener(
        new COConfigurationListener() {
          public void configurationSaved() {
            readConfig();
          }
        });

    NetworkAdmin.getSingleton()
        .addPropertyChangeListener(
            new NetworkAdminPropertyChangeListener() {
              public void propertyChanged(String property) {
                if (property == NetworkAdmin.PR_DEFAULT_BIND_ADDRESS) {

                  readConfig();
                }
              }
            });

    readConfig();
  }
Пример #6
0
  public static void setUDPProbeResult(URL tracker_url, boolean probe_ok) {
    String key = tracker_url.getHost();

    synchronized (udp_probe_results) {
      boolean changed = false;

      if (udp_probe_results.get(key) == null) {

        if (probe_ok) {

          // arbitrary max size here just in case something weird happens

          if (udp_probe_results.size() > 512) {

            udp_probe_results.clear();
          }

          udp_probe_results.put(key, new Long(SystemTime.getCurrentTime()));

          changed = true;
        }
      } else {

        if (!probe_ok) {

          if (udp_probe_results.remove(key) != null) {

            changed = true;
          }
        }
      }

      if (changed) {

        COConfigurationManager.setParameter("Tracker Client UDP Probe Results", udp_probe_results);
      }
    }
  }
  protected void saveAuthCache() {
    try {
      this_mon.enter();

      HashMap map = new HashMap();

      Iterator it = auth_cache.values().iterator();

      while (it.hasNext()) {

        authCache value = (authCache) it.next();

        if (value.isPersistent()) {

          try {
            HashMap entry_map = new HashMap();

            entry_map.put("user", value.getAuth().getUserName().getBytes("UTF-8"));
            entry_map.put("pw", new String(value.getAuth().getPassword()).getBytes("UTF-8"));

            map.put(value.getKey(), entry_map);

          } catch (Throwable e) {

            Debug.printStackTrace(e);
          }
        }
      }

      COConfigurationManager.setParameter(CONFIG_PARAM, map);

    } finally {

      this_mon.exit();
    }
  }
 public String getHost() {
   return (COConfigurationManager.getStringParameter("Tracker IP", ""));
 }
Пример #9
0
  static {
    COConfigurationManager.addAndFireParameterListeners(
        new String[] {
          "Proxy.Data.Enable",
          "Proxy.Data.SOCKS.inform",
          "TCP.Listen.Port.Override",
          "Tracker Client No Port Announce",
          "network.transport.encrypted.use.crypto.port",
          "network.transport.encrypted.require",
          "network.transport.encrypted.fallback.incoming",
          "TCP.Listen.Port",
          "UDP.Listen.Port",
          "HTTP.Data.Listen.Port",
          "HTTP.Data.Listen.Port.Override",
          "HTTP.Data.Listen.Port.Enable",
          "Tracker Client Min Announce Interval"
        },
        new ParameterListener() {
          public void parameterChanged(String parameterName) {
            String port = computePortsForURL(false, true);
            String port_with_crypto = computePortsForURL(true, false);

            if (ports_for_url != null && (!ports_for_url.equals(port))) {

              synchronized (listeners) {

                // back off for a bit to prevent multiple config changes from causing
                // multiple firings

                if (listener_thread == null) {

                  listener_thread =
                      new AEThread2("TRTrackerUtils:listener", true) {
                        public void run() {
                          try {
                            Thread.sleep(30000);

                          } catch (Throwable e) {
                          }

                          synchronized (listeners) {
                            listener_thread = null;
                          }

                          for (Iterator it = listeners.iterator(); it.hasNext(); ) {

                            try {
                              ((TRTrackerUtilsListener) it.next()).announceDetailsChanged();

                            } catch (Throwable e) {

                              Debug.printStackTrace(e);
                            }
                          }
                        }
                      };

                  listener_thread.start();
                }
              }
            }

            ports_for_url = port;
            ports_for_url_with_crypto = port_with_crypto;
          }
        });
  }
Пример #10
0
public class TRTrackerUtils {
  // author of MakeTorrent has requested we blacklist his site
  // as people keep embedding it as a tracker in torrents

  private static String[] BLACKLISTED_HOSTS = {"krypt.dyndns.org"};

  private static int[] BLACKLISTED_PORTS = {81};

  private static String tracker_ip;

  private static Map override_map;

  private static String bind_ip;

  private static String ports_for_url;
  private static String ports_for_url_with_crypto;

  private static CopyOnWriteList listeners = new CopyOnWriteList();

  private static AEThread2 listener_thread;

  static {
    COConfigurationManager.addAndFireParameterListeners(
        new String[] {
          "Proxy.Data.Enable",
          "Proxy.Data.SOCKS.inform",
          "TCP.Listen.Port.Override",
          "Tracker Client No Port Announce",
          "network.transport.encrypted.use.crypto.port",
          "network.transport.encrypted.require",
          "network.transport.encrypted.fallback.incoming",
          "TCP.Listen.Port",
          "UDP.Listen.Port",
          "HTTP.Data.Listen.Port",
          "HTTP.Data.Listen.Port.Override",
          "HTTP.Data.Listen.Port.Enable",
          "Tracker Client Min Announce Interval"
        },
        new ParameterListener() {
          public void parameterChanged(String parameterName) {
            String port = computePortsForURL(false, true);
            String port_with_crypto = computePortsForURL(true, false);

            if (ports_for_url != null && (!ports_for_url.equals(port))) {

              synchronized (listeners) {

                // back off for a bit to prevent multiple config changes from causing
                // multiple firings

                if (listener_thread == null) {

                  listener_thread =
                      new AEThread2("TRTrackerUtils:listener", true) {
                        public void run() {
                          try {
                            Thread.sleep(30000);

                          } catch (Throwable e) {
                          }

                          synchronized (listeners) {
                            listener_thread = null;
                          }

                          for (Iterator it = listeners.iterator(); it.hasNext(); ) {

                            try {
                              ((TRTrackerUtilsListener) it.next()).announceDetailsChanged();

                            } catch (Throwable e) {

                              Debug.printStackTrace(e);
                            }
                          }
                        }
                      };

                  listener_thread.start();
                }
              }
            }

            ports_for_url = port;
            ports_for_url_with_crypto = port_with_crypto;
          }
        });
  }

  private static String computePortsForURL(boolean force_crypto, boolean allow_incoming) {
    boolean socks_peer_inform =
        COConfigurationManager.getBooleanParameter("Proxy.Data.Enable")
            && COConfigurationManager.getBooleanParameter("Proxy.Data.SOCKS.inform");

    // we currently don't support incoming connections when SOCKs proxying

    allow_incoming &=
        !COConfigurationManager.getBooleanParameter("Tracker Client No Port Announce");

    int tcp_port_num;
    int udp_port_num;

    if (allow_incoming) {

      if (socks_peer_inform) {

        tcp_port_num = 0;
        udp_port_num = 0;
      } else {

        tcp_port_num = COConfigurationManager.getIntParameter("TCP.Listen.Port");
        udp_port_num = COConfigurationManager.getIntParameter("UDP.Listen.Port");
      }

      String portOverride = COConfigurationManager.getStringParameter("TCP.Listen.Port.Override");

      if (!portOverride.equals("")) {

        try {
          tcp_port_num = Integer.parseInt(portOverride);

        } catch (Throwable e) {

          Debug.printStackTrace(e);
        }
      }
    } else {

      tcp_port_num = 0;
      udp_port_num = 0;
    }

    String port = "";

    if (force_crypto) {

      port += "&requirecrypto=1";

      port += "&port=0&cryptoport=" + tcp_port_num;

    } else {

      boolean require_crypto =
          COConfigurationManager.getBooleanParameter("network.transport.encrypted.require");

      if (require_crypto) {

        port += "&requirecrypto=1";

      } else {

        port += "&supportcrypto=1";
      }

      if (require_crypto
          && (!COConfigurationManager.getBooleanParameter(
              "network.transport.encrypted.fallback.incoming"))
          && COConfigurationManager.getBooleanParameter(
              "network.transport.encrypted.use.crypto.port")) {

        port += "&port=0&cryptoport=" + tcp_port_num;

      } else {

        port += "&port=" + tcp_port_num;
      }

      port += "&azudp=" + udp_port_num;

      //  BitComet extension for no incoming connections

      if (tcp_port_num == 0) {

        port += "&hide=1";
      }

      if (COConfigurationManager.getBooleanParameter("HTTP.Data.Listen.Port.Enable")) {

        int http_port = COConfigurationManager.getIntParameter("HTTP.Data.Listen.Port.Override");

        if (http_port == 0) {

          http_port = COConfigurationManager.getIntParameter("HTTP.Data.Listen.Port");
        }

        port += "&azhttp=" + http_port;
      }
    }

    return (port);
  }

  public static String getPublicIPOverride() {
    String explicit_ips = COConfigurationManager.getStringParameter("Override Ip", "");

    if (explicit_ips.length() > 0) {

      StringTokenizer tok = new StringTokenizer(explicit_ips, ";");

      while (tok.hasMoreTokens()) {

        String this_address = tok.nextToken().trim();

        if (this_address.length() > 0) {

          String cat = AENetworkClassifier.categoriseAddress(this_address);

          if (cat == AENetworkClassifier.AT_PUBLIC) {

            return (this_address);
          }
        }
      }
    }

    return (null);
  }

  private static Map az_trackers =
      COConfigurationManager.getMapParameter("Tracker Client AZ Instances", new HashMap());

  private static Map udp_probe_results =
      COConfigurationManager.getMapParameter("Tracker Client UDP Probe Results", new HashMap());

  static {
    COConfigurationManager.addListener(
        new COConfigurationListener() {
          public void configurationSaved() {
            readConfig();
          }
        });

    NetworkAdmin.getSingleton()
        .addPropertyChangeListener(
            new NetworkAdminPropertyChangeListener() {
              public void propertyChanged(String property) {
                if (property == NetworkAdmin.PR_DEFAULT_BIND_ADDRESS) {

                  readConfig();
                }
              }
            });

    readConfig();
  }

  static void readConfig() {
    tracker_ip = COConfigurationManager.getStringParameter("Tracker IP", "");

    tracker_ip = UrlUtils.expandIPV6Host(tracker_ip);

    String override_ips = COConfigurationManager.getStringParameter("Override Ip", "");

    StringTokenizer tok = new StringTokenizer(override_ips, ";");

    Map new_override_map = new HashMap();

    while (tok.hasMoreTokens()) {

      String ip = tok.nextToken().trim();

      if (ip.length() > 0) {

        new_override_map.put(AENetworkClassifier.categoriseAddress(ip), ip);
      }
    }

    override_map = new_override_map;

    InetAddress bad = NetworkAdmin.getSingleton().getSingleHomedServiceBindAddress();

    if (bad == null || bad.isAnyLocalAddress()) {

      bind_ip = "";

    } else {

      bind_ip = bad.getHostAddress();
    }
  }

  public static boolean isHosting(URL url_in) {
    return (tracker_ip.length() > 0
        && UrlUtils.expandIPV6Host(url_in.getHost()).equalsIgnoreCase(tracker_ip));
  }

  public static String getTrackerIP() {
    return (tracker_ip);
  }

  public static boolean isTrackerEnabled() {
    return (getAnnounceURLs().length > 0);
  }

  public static URL[][] getAnnounceURLs() {
    String tracker_host = COConfigurationManager.getStringParameter("Tracker IP", "");

    List urls = new ArrayList();

    if (tracker_host.length() > 0) {

      if (COConfigurationManager.getBooleanParameter("Tracker Port Enable")) {

        int port = COConfigurationManager.getIntParameter("Tracker Port", TRHost.DEFAULT_PORT);

        try {
          List l = new ArrayList();

          l.add(
              new URL(
                  "http://" + UrlUtils.convertIPV6Host(tracker_host) + ":" + port + "/announce"));

          List ports =
              stringToPorts(COConfigurationManager.getStringParameter("Tracker Port Backups"));

          for (int i = 0; i < ports.size(); i++) {

            l.add(
                new URL(
                    "http://"
                        + UrlUtils.convertIPV6Host(tracker_host)
                        + ":"
                        + ((Integer) ports.get(i)).intValue()
                        + "/announce"));
          }

          urls.add(l);

        } catch (MalformedURLException e) {

          Debug.printStackTrace(e);
        }
      }

      if (COConfigurationManager.getBooleanParameter("Tracker Port SSL Enable")) {

        int port =
            COConfigurationManager.getIntParameter("Tracker Port SSL", TRHost.DEFAULT_PORT_SSL);

        try {
          List l = new ArrayList();

          l.add(
              new URL(
                  "https://" + UrlUtils.convertIPV6Host(tracker_host) + ":" + port + "/announce"));

          List ports =
              stringToPorts(COConfigurationManager.getStringParameter("Tracker Port SSL Backups"));

          for (int i = 0; i < ports.size(); i++) {

            l.add(
                new URL(
                    "https://"
                        + UrlUtils.convertIPV6Host(tracker_host)
                        + ":"
                        + ((Integer) ports.get(i)).intValue()
                        + "/announce"));
          }

          urls.add(l);

        } catch (MalformedURLException e) {

          Debug.printStackTrace(e);
        }
      }

      if (COConfigurationManager.getBooleanParameter("Tracker Port UDP Enable")) {

        int port = COConfigurationManager.getIntParameter("Tracker Port", TRHost.DEFAULT_PORT);

        boolean auth =
            COConfigurationManager.getBooleanParameter("Tracker Password Enable Torrent");

        try {
          List l = new ArrayList();

          l.add(
              new URL(
                  "udp://"
                      + UrlUtils.convertIPV6Host(tracker_host)
                      + ":"
                      + port
                      + "/announce"
                      + (auth ? "?auth" : "")));

          urls.add(l);

        } catch (MalformedURLException e) {

          Debug.printStackTrace(e);
        }
      }
    }

    URL[][] res = new URL[urls.size()][];

    for (int i = 0; i < urls.size(); i++) {

      List l = (List) urls.get(i);

      URL[] u = new URL[l.size()];

      l.toArray(u);

      res[i] = u;
    }

    return (res);
  }

  protected static List stringToPorts(String str) {
    str = str.replace(',', ';');

    StringTokenizer tok = new StringTokenizer(str, ";");

    List res = new ArrayList();

    while (tok.hasMoreTokens()) {

      try {
        res.add(new Integer(tok.nextToken().trim()));

      } catch (Throwable e) {

        Debug.out("Invalid port entry in '" + str + "'", e);
      }
    }

    return (res);
  }

  public static URL adjustURLForHosting(URL url_in) {
    if (isHosting(url_in)) {

      String url = url_in.getProtocol() + "://";

      if (bind_ip.length() < 7) {

        url += "127.0.0.1";

      } else {

        url += bind_ip;
      }

      int port = url_in.getPort();

      if (port != -1) {

        url += ":" + url_in.getPort();
      }

      url += url_in.getPath();

      String query = url_in.getQuery();

      if (query != null) {

        url += "?" + query;
      }

      try {
        return (new URL(url));

      } catch (MalformedURLException e) {

        Debug.printStackTrace(e);
      }
    }

    return (url_in);
  }

  public static String adjustHostFromHosting(String host_in) {
    if (tracker_ip.length() > 0) {

      String address_type = AENetworkClassifier.categoriseAddress(host_in);

      String target_ip = (String) override_map.get(address_type);

      if (target_ip == null) {

        target_ip = tracker_ip;
      }

      if (host_in.equals("127.0.0.1")) {

        // System.out.println( "adjustHostFromHosting: " + host_in + " -> " + tracker_ip );

        return (target_ip);
      }

      if (host_in.equals(bind_ip)) {

        // System.out.println( "adjustHostFromHosting: " + host_in +  " -> " + tracker_ip );

        return (target_ip);
      }
    }

    return (host_in);
  }

  public static boolean isLoopback(String host) {
    return (host.equals("127.0.0.1") || host.equals(bind_ip));
  }

  public static void checkForBlacklistedURLs(URL url) throws IOException {

    for (int i = 0; i < BLACKLISTED_HOSTS.length; i++) {

      if (url.getHost().equalsIgnoreCase(BLACKLISTED_HOSTS[i])
          && url.getPort() == BLACKLISTED_PORTS[i]) {

        throw (new IOException(
            "http://" + BLACKLISTED_HOSTS[i] + ":" + BLACKLISTED_PORTS[i] + "/ is not a tracker"));
      }
    }
  }

  public static Map mergeResponseCache(Map map1, Map map2) {
    return (TRTrackerBTAnnouncerImpl.mergeResponseCache(map1, map2));
  }

  public static String getPortsForURL() {
    return (ports_for_url);
  }

  public static String getPortsForURLFullCrypto() {
    return (ports_for_url_with_crypto);
  }

  public static boolean isAZTracker(URL tracker_url) {
    String host = tracker_url.getHost();

    if (Constants.isAzureusDomain(host)) {

      return (true);
    }

    synchronized (az_trackers) {
      return (az_trackers.containsKey(host + ":" + tracker_url.getPort()));
    }
  }

  public static void setAZTracker(URL tracker_url, boolean az_tracker) {
    String key = tracker_url.getHost() + ":" + tracker_url.getPort();

    synchronized (az_trackers) {
      boolean changed = false;

      if (az_trackers.get(key) == null) {

        if (az_tracker) {

          az_trackers.put(key, new Long(SystemTime.getCurrentTime()));

          changed = true;
        }
      } else {

        if (!az_tracker) {

          if (az_trackers.remove(key) != null) {

            changed = true;
          }
        }
      }

      if (changed) {

        COConfigurationManager.setParameter("Tracker Client AZ Instances", az_trackers);
      }
    }
  }

  public static boolean isUDPProbeOK(URL tracker_url) {
    String host = tracker_url.getHost();

    if (Constants.isAzureusDomain(host)) {

      return (false);
    }

    synchronized (udp_probe_results) {
      return (udp_probe_results.containsKey(host));
    }
  }

  public static void setUDPProbeResult(URL tracker_url, boolean probe_ok) {
    String key = tracker_url.getHost();

    synchronized (udp_probe_results) {
      boolean changed = false;

      if (udp_probe_results.get(key) == null) {

        if (probe_ok) {

          // arbitrary max size here just in case something weird happens

          if (udp_probe_results.size() > 512) {

            udp_probe_results.clear();
          }

          udp_probe_results.put(key, new Long(SystemTime.getCurrentTime()));

          changed = true;
        }
      } else {

        if (!probe_ok) {

          if (udp_probe_results.remove(key) != null) {

            changed = true;
          }
        }
      }

      if (changed) {

        COConfigurationManager.setParameter("Tracker Client UDP Probe Results", udp_probe_results);
      }
    }
  }

  public static void addListener(TRTrackerUtilsListener l) {
    listeners.add(l);
  }

  public static void removeListener(TRTrackerUtilsListener l) {
    listeners.remove(l);
  }
}
Пример #11
0
  public static URL[][] getAnnounceURLs() {
    String tracker_host = COConfigurationManager.getStringParameter("Tracker IP", "");

    List urls = new ArrayList();

    if (tracker_host.length() > 0) {

      if (COConfigurationManager.getBooleanParameter("Tracker Port Enable")) {

        int port = COConfigurationManager.getIntParameter("Tracker Port", TRHost.DEFAULT_PORT);

        try {
          List l = new ArrayList();

          l.add(
              new URL(
                  "http://" + UrlUtils.convertIPV6Host(tracker_host) + ":" + port + "/announce"));

          List ports =
              stringToPorts(COConfigurationManager.getStringParameter("Tracker Port Backups"));

          for (int i = 0; i < ports.size(); i++) {

            l.add(
                new URL(
                    "http://"
                        + UrlUtils.convertIPV6Host(tracker_host)
                        + ":"
                        + ((Integer) ports.get(i)).intValue()
                        + "/announce"));
          }

          urls.add(l);

        } catch (MalformedURLException e) {

          Debug.printStackTrace(e);
        }
      }

      if (COConfigurationManager.getBooleanParameter("Tracker Port SSL Enable")) {

        int port =
            COConfigurationManager.getIntParameter("Tracker Port SSL", TRHost.DEFAULT_PORT_SSL);

        try {
          List l = new ArrayList();

          l.add(
              new URL(
                  "https://" + UrlUtils.convertIPV6Host(tracker_host) + ":" + port + "/announce"));

          List ports =
              stringToPorts(COConfigurationManager.getStringParameter("Tracker Port SSL Backups"));

          for (int i = 0; i < ports.size(); i++) {

            l.add(
                new URL(
                    "https://"
                        + UrlUtils.convertIPV6Host(tracker_host)
                        + ":"
                        + ((Integer) ports.get(i)).intValue()
                        + "/announce"));
          }

          urls.add(l);

        } catch (MalformedURLException e) {

          Debug.printStackTrace(e);
        }
      }

      if (COConfigurationManager.getBooleanParameter("Tracker Port UDP Enable")) {

        int port = COConfigurationManager.getIntParameter("Tracker Port", TRHost.DEFAULT_PORT);

        boolean auth =
            COConfigurationManager.getBooleanParameter("Tracker Password Enable Torrent");

        try {
          List l = new ArrayList();

          l.add(
              new URL(
                  "udp://"
                      + UrlUtils.convertIPV6Host(tracker_host)
                      + ":"
                      + port
                      + "/announce"
                      + (auth ? "?auth" : "")));

          urls.add(l);

        } catch (MalformedURLException e) {

          Debug.printStackTrace(e);
        }
      }
    }

    URL[][] res = new URL[urls.size()][];

    for (int i = 0; i < urls.size(); i++) {

      List l = (List) urls.get(i);

      URL[] u = new URL[l.size()];

      l.toArray(u);

      res[i] = u;
    }

    return (res);
  }
Пример #12
0
  private static String computePortsForURL(boolean force_crypto, boolean allow_incoming) {
    boolean socks_peer_inform =
        COConfigurationManager.getBooleanParameter("Proxy.Data.Enable")
            && COConfigurationManager.getBooleanParameter("Proxy.Data.SOCKS.inform");

    // we currently don't support incoming connections when SOCKs proxying

    allow_incoming &=
        !COConfigurationManager.getBooleanParameter("Tracker Client No Port Announce");

    int tcp_port_num;
    int udp_port_num;

    if (allow_incoming) {

      if (socks_peer_inform) {

        tcp_port_num = 0;
        udp_port_num = 0;
      } else {

        tcp_port_num = COConfigurationManager.getIntParameter("TCP.Listen.Port");
        udp_port_num = COConfigurationManager.getIntParameter("UDP.Listen.Port");
      }

      String portOverride = COConfigurationManager.getStringParameter("TCP.Listen.Port.Override");

      if (!portOverride.equals("")) {

        try {
          tcp_port_num = Integer.parseInt(portOverride);

        } catch (Throwable e) {

          Debug.printStackTrace(e);
        }
      }
    } else {

      tcp_port_num = 0;
      udp_port_num = 0;
    }

    String port = "";

    if (force_crypto) {

      port += "&requirecrypto=1";

      port += "&port=0&cryptoport=" + tcp_port_num;

    } else {

      boolean require_crypto =
          COConfigurationManager.getBooleanParameter("network.transport.encrypted.require");

      if (require_crypto) {

        port += "&requirecrypto=1";

      } else {

        port += "&supportcrypto=1";
      }

      if (require_crypto
          && (!COConfigurationManager.getBooleanParameter(
              "network.transport.encrypted.fallback.incoming"))
          && COConfigurationManager.getBooleanParameter(
              "network.transport.encrypted.use.crypto.port")) {

        port += "&port=0&cryptoport=" + tcp_port_num;

      } else {

        port += "&port=" + tcp_port_num;
      }

      port += "&azudp=" + udp_port_num;

      //  BitComet extension for no incoming connections

      if (tcp_port_num == 0) {

        port += "&hide=1";
      }

      if (COConfigurationManager.getBooleanParameter("HTTP.Data.Listen.Port.Enable")) {

        int http_port = COConfigurationManager.getIntParameter("HTTP.Data.Listen.Port.Override");

        if (http_port == 0) {

          http_port = COConfigurationManager.getIntParameter("HTTP.Data.Listen.Port");
        }

        port += "&azhttp=" + http_port;
      }
    }

    return (port);
  }
  public PasswordAuthentication getAuthentication(
      String realm, String protocol, String host, int port) {
    try {
      this_mon.enter();

      String tracker = protocol + "://" + host + ":" + port + "/";

      InetAddress bind_ip = NetworkAdmin.getSingleton().getSingleHomedServiceBindAddress();

      String self_addr;

      // System.out.println( "auth req for " + realm + " - " + tracker );

      if (bind_ip == null || bind_ip.isAnyLocalAddress()) {

        self_addr = "127.0.0.1";

      } else {

        self_addr = bind_ip.getHostAddress();
      }

      // when the tracker is connected to internally we don't want to prompt
      // for the password. Here we return a special user and the password hash
      // which is picked up in the tracker auth code - search for "<internal>"!

      // also include the tracker IP as well as for scrapes these can occur on
      // a raw torrent which hasn't been modified to point to localhost

      if (host.equals(self_addr)
          || host.equals(COConfigurationManager.getStringParameter("Tracker IP", ""))) {

        try {
          byte[] pw = COConfigurationManager.getByteParameter("Tracker Password", new byte[0]);

          String str_pw = new String(Base64.encode(pw));

          return (new PasswordAuthentication("<internal>", str_pw.toCharArray()));

        } catch (Throwable e) {

          Debug.printStackTrace(e);
        }
      }

      String auth_key = realm + ":" + tracker;

      authCache cache = (authCache) auth_cache.get(auth_key);

      if (cache != null) {

        PasswordAuthentication auth = cache.getAuth();

        if (auth != null) {

          return (auth);
        }
      }

      String[] res = getAuthenticationDialog(realm, tracker);

      if (res == null) {

        return (null);

      } else {

        PasswordAuthentication auth = new PasswordAuthentication(res[0], res[1].toCharArray());

        boolean save_pw = res[2].equals("true");

        boolean old_entry_existed =
            auth_cache.put(auth_key, new authCache(auth_key, auth, save_pw)) != null;

        if (save_pw || old_entry_existed) {

          saveAuthCache();
        }

        return (auth);
      }
    } finally {

      this_mon.exit();
    }
  }