private TRTrackerAnnouncerHelper create(
      TOTorrent torrent, String[] networks, TOTorrentAnnounceURLSet[] sets)
      throws TRTrackerAnnouncerException {
    TRTrackerAnnouncerHelper announcer;

    boolean decentralised;

    if (sets.length == 0) {

      decentralised = TorrentUtils.isDecentralised(torrent.getAnnounceURL());

    } else {

      decentralised = TorrentUtils.isDecentralised(sets[0].getAnnounceURLs()[0]);
    }

    if (decentralised) {

      announcer = new TRTrackerDHTAnnouncerImpl(torrent, networks, is_manual, getHelper());

    } else {

      announcer = new TRTrackerBTAnnouncerImpl(torrent, sets, networks, is_manual, getHelper());
    }

    for (TOTorrentAnnounceURLSet set : sets) {

      URL[] urls = set.getAnnounceURLs();

      for (URL u : urls) {

        String key = u.toExternalForm();

        StatusSummary summary = recent_responses.get(key);

        if (summary == null) {

          summary = new StatusSummary(announcer, u);

          recent_responses.put(key, summary);

        } else {

          summary.setHelper(announcer);
        }
      }
    }

    if (provider != null) {

      announcer.setAnnounceDataProvider(provider);
    }

    if (ip_override != null) {

      announcer.setIPOverride(ip_override);
    }

    return (announcer);
  }
예제 #2
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  protected String[] getAuthenticationDialog(final String realm, final String tracker) {
    final Display display = SWTThread.getInstance().getDisplay();

    if (display.isDisposed()) {

      return (null);
    }

    final AESemaphore sem = new AESemaphore("SWTAuth");

    final authDialog[] dialog = new authDialog[1];

    TOTorrent torrent = TorrentUtils.getTLSTorrent();

    final String torrent_name;

    if (torrent == null) {

      torrent_name = null;

    } else {

      torrent_name = TorrentUtils.getLocalisedName(torrent);
    }

    try {
      display.asyncExec(
          new AERunnable() {
            public void runSupport() {
              dialog[0] = new authDialog(sem, display, realm, tracker, torrent_name);
            }
          });
    } catch (Throwable e) {

      Debug.printStackTrace(e);

      return (null);
    }
    sem.reserve();

    String user = dialog[0].getUsername();
    String pw = dialog[0].getPassword();
    String persist = dialog[0].savePassword() ? "true" : "false";

    if (user == null) {

      return (null);
    }

    return (new String[] {user, pw == null ? "" : pw, persist});
  }
예제 #3
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  protected void setIgnoreList() {
    try {
      ignore_set = TorrentUtils.getIgnoreSet();

    } catch (NoClassDefFoundError e) {

      return;
    }
  }
  public void setTrackerURL(URL url) {
    List<List<String>> groups = new ArrayList<List<String>>();

    List<String> group = new ArrayList<String>();

    group.add(url.toExternalForm());

    groups.add(group);

    TorrentUtils.listToAnnounceGroups(groups, getTorrent());

    resetTrackerUrl(false);
  }
예제 #5
0
  private static void writeTorrentIfExists(TOTorrent torrent) {
    AzureusCore core = AzureusCoreFactory.getSingleton();
    if (core == null || !core.isStarted()) {
      return;
    }

    GlobalManager gm = core.getGlobalManager();
    if (gm == null || gm.getDownloadManager(torrent) == null) {
      return;
    }

    try {
      TorrentUtils.writeToFile(torrent);
    } catch (TOTorrentException e) {
      Debug.out(e);
    }
  }
예제 #6
0
  public void shareTorrent(final SelectedContentV3 currentContent, final String referer) {

    PlatformBuddyMessenger.startShare(
        referer, currentContent.isPlatformContent() ? currentContent.getHash() : null);

    if (!VuzeBuddyManager.isEnabled()) {
      VuzeBuddyManager.showDisabledDialog();
      return;
    }

    // TODO : Gudy : make sure that this private detection method is reliable enough
    if (currentContent.getDM() != null
        && (TorrentUtils.isReallyPrivate(currentContent.getDM().getTorrent()))) {
      Utils.openMessageBox(Utils.findAnyShell(), SWT.OK, "v3.share.private", (String[]) null);
      return;
    }

    SWTLoginUtils.waitForLogin(
        new SWTLoginUtils.loginWaitListener() {
          public void loginComplete() {
            if (null != sharePage) {
              try {
                // sharePage.setShareItem(currentContent, referer);

                ShareWizard wizard =
                    new ShareWizard(
                        UIFunctionsManagerSWT.getUIFunctionsSWT().getMainShell(),
                        SWT.DIALOG_TRIM | SWT.RESIZE);
                wizard.setText("Vuze - Wizard");
                wizard.setSize(500, 550);

                com.aelitis.azureus.ui.swt.shells.friends.SharePage newSharePage =
                    (com.aelitis.azureus.ui.swt.shells.friends.SharePage)
                        wizard.getPage(com.aelitis.azureus.ui.swt.shells.friends.SharePage.ID);
                newSharePage.setShareItem(currentContent, referer);

                /*
                 * Opens a centered free-floating shell
                 */

                UIFunctionsSWT uiFunctions = UIFunctionsManagerSWT.getUIFunctionsSWT();
                if (null == uiFunctions) {
                  /*
                   * Centers on the active monitor
                   */
                  Utils.centreWindow(wizard.getShell());
                } else {
                  /*
                   * Centers on the main application window
                   */
                  Utils.centerWindowRelativeTo(wizard.getShell(), uiFunctions.getMainShell());
                }

                wizard.open();

              } catch (Exception e) {
                e.printStackTrace();
              }
            }
          }
        });
  }
  public void runSupport() {

    try {
      new URL(url_str); // determine if this is already a proper URL
    } catch (Throwable t) { // it's not

      //  			//check if the string is just a base32/hex-encoded torrent infohash
      //
      //  		String magnet_uri = UrlUtils.normaliseMagnetURI( url_str );
      //
      //  		if ( magnet_uri != null ){
      //
      //  			url_str = magnet_uri;
      //  		}
    }

    try {
      url = AddressUtils.adjustURL(new URL(url_str));

      String protocol = url.getProtocol().toLowerCase();

      // hack here - the magnet download process requires an additional paramter to cause it to
      // stall on error so the error can be reported

      //    	if ( protocol.equals( "magnet" ) || protocol.equals( "dht" )){
      //
      //    		url = AddressUtils.adjustURL( new URL(url_str+"&pause_on_error=true"));
      //    	}

      for (int i = 0; i < 2; i++) {
        try {

          //	      if ( protocol.equals("https")){
          //
          //	      	// see ConfigurationChecker for SSL client defaults
          //
          //	      	HttpsURLConnection ssl_con = (HttpsURLConnection)url.openConnection();
          //
          //	      	// allow for certs that contain IP addresses rather than dns names
          //
          //	      	ssl_con.setHostnameVerifier(
          //	      			new HostnameVerifier()
          //	      			{
          //	      				public boolean
          //	      				verify(
          //	      					String		host,
          //							SSLSession	session )
          //	      				{
          //	      					return( true );
          //	      				}
          //	      			});
          //
          //	      	con = ssl_con;
          //
          //	      }else{
          //
          con = (HttpURLConnection) url.openConnection();

          //	      }

          con.setRequestProperty(
              "User-Agent", Constants.AZUREUS_NAME + " " + Constants.AZUREUS_VERSION);

          if (referrer != null && referrer.length() > 0) {

            con.setRequestProperty("Referer", referrer);
          }

          if (request_properties != null) {

            Iterator it = request_properties.entrySet().iterator();

            while (it.hasNext()) {

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

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

              // currently this code doesn't support gzip/deflate...

              if (!key.equalsIgnoreCase("Accept-Encoding")) {

                con.setRequestProperty(key, value);
              }
            }
          }

          this.con.connect();

          break;

          //      	}catch( SSLException e ){
          //
          //      		if ( i == 0 ){
          //
          //      			if ( SESecurityManager.installServerCertificates( url ) != null ){
          //
          //      				// certificate has been installed
          //
          //      				continue;	// retry with new certificate
          //      			}
          //      		}
          //
          //      		throw( e );
          //
        } catch (IOException e) {

          if (i == 0) {

            URL retry_url = UrlUtils.getIPV4Fallback(url);

            if (retry_url != null) {

              url = retry_url;

            } else {

              throw (e);
            }
          }
        }
      }

      int response = this.con.getResponseCode();
      if (!ignoreReponseCode) {
        if ((response != HttpURLConnection.HTTP_ACCEPTED)
            && (response != HttpURLConnection.HTTP_OK)) {
          this.error(response, Integer.toString(response) + ": " + this.con.getResponseMessage());
          return;
        }
      }

      /*
           Map headerFields = this.con.getHeaderFields();

           System.out.println("Header of download of " + url_str);
           for (Iterator iter = headerFields.keySet().iterator(); iter.hasNext();) {
      			String s = (String) iter.next();
      			System.out.println(s + ":" + headerFields.get(s));

      		}
      */
      filename = this.con.getHeaderField("Content-Disposition");
      if ((filename != null)
          && filename
              .toLowerCase()
              .matches(".*attachment.*")) // Some code to handle b0rked servers.
      while (filename.toLowerCase().charAt(0) != 'a') filename = filename.substring(1);
      if ((filename == null)
          || !filename.toLowerCase().startsWith("attachment")
          || (filename.indexOf('=') == -1)) {
        String tmp = this.url.getFile();
        if (tmp.length() == 0 || tmp.equals("/")) {
          filename = url.getHost();
        } else if (tmp.startsWith("?")) {

          // probably a magnet URI - use the hash
          // magnet:?xt=urn:sha1:VGC53ZWCUXUWVGX7LQPVZIYF4L6RXSU6

          String query = tmp.toUpperCase();

          int pos = query.indexOf("XT=URN:SHA1:");

          if (pos == -1) {

            pos = query.indexOf("XT=URN:BTIH:");
          }

          if (pos != -1) {

            pos += 12;

            int p2 = query.indexOf("&", pos);

            if (p2 == -1) {

              filename = query.substring(pos);

            } else {

              filename = query.substring(pos, p2);
            }
          } else {

            filename = "Torrent" + (long) (Math.random() * Long.MAX_VALUE);
          }

          filename += ".tmp";

        } else {
          if (tmp.lastIndexOf('/') != -1) tmp = tmp.substring(tmp.lastIndexOf('/') + 1);

          // remove any params in the url

          int param_pos = tmp.indexOf('?');

          if (param_pos != -1) {
            tmp = tmp.substring(0, param_pos);
          }

          filename = URLDecoder.decode(tmp, Constants.DEFAULT_ENCODING);
        }
      } else {
        filename = filename.substring(filename.indexOf('=') + 1);
        if (filename.startsWith("\"") && filename.endsWith("\""))
          filename = filename.substring(1, filename.lastIndexOf('\"'));

        filename = URLDecoder.decode(filename, Constants.DEFAULT_ENCODING);

        // not sure of this piece of logic here but I'm not changing it at the moment

        File temp = new File(filename);
        filename = temp.getName();
      }

      filename = FileUtil.convertOSSpecificChars(filename, false);

      //      directoryname =
      // COConfigurationManager.getDirectoryParameter("General_sDefaultTorrent_Directory");
      //      boolean useTorrentSave = COConfigurationManager.getBooleanParameter("Save Torrent
      // Files");
      directoryname = "D:\\Development\\testDownloads\\";
      boolean useTorrentSave = true;
      if (file_str != null) {
        // not completely sure about the whole logic in this block
        File temp = new File(file_str);

        // if we're not using a default torrent save dir
        if (!useTorrentSave || directoryname.length() == 0) {
          // if it's already a dir
          if (temp.isDirectory()) {
            // use it
            directoryname = temp.getCanonicalPath();
          }
          // it's a file
          else {
            // so use its parent dir
            directoryname = temp.getCanonicalFile().getParent();
          }
        }

        // if it's a file
        if (!temp.isDirectory()) {
          // set the file name
          filename = temp.getName();
        }
      }
      // what would happen here if directoryname == null and file_str == null??

      this.state = STATE_INIT;
      this.notifyListener();
    } catch (java.net.MalformedURLException e) {
      this.error(0, "Exception while parsing URL '" + url + "':" + e.getMessage());
    } catch (java.net.UnknownHostException e) {
      this.error(
          0,
          "Exception while initializing download of '"
              + url
              + "': Unknown Host '"
              + e.getMessage()
              + "'");
    } catch (java.io.IOException ioe) {
      this.error(0, "I/O Exception while initializing download of '" + url + "':" + ioe.toString());
    } catch (Throwable e) {
      this.error(0, "Exception while initializing download of '" + url + "':" + e.toString());
    }

    if (this.state == STATE_ERROR) {

      return;
    }

    try {
      final boolean status_reader_run[] = {true};

      this.state = STATE_START;

      notifyListener();

      this.state = STATE_DOWNLOADING;

      notifyListener();

      Thread status_reader =
          new AEThread("TorrentDownloader:statusreader") {
            public void runSupport() {
              boolean changed_status = false;

              while (true) {

                try {
                  Thread.sleep(100);

                  try {
                    this_mon.enter();

                    if (!status_reader_run[0]) {

                      break;
                    }
                  } finally {

                    this_mon.exit();
                  }

                  String s = con.getResponseMessage();

                  if (!s.equals(getStatus())) {

                    if (!s.toLowerCase().startsWith("error:")) {

                      if (s.toLowerCase().indexOf("alive") != -1) {

                        if (percentDone < 10) {

                          percentDone++;
                        }
                      }

                      int pos = s.indexOf('%');

                      if (pos != -1) {

                        int i;

                        for (i = pos - 1; i >= 0; i--) {

                          char c = s.charAt(i);

                          if (!Character.isDigit(c) && c != ' ') {

                            i++;

                            break;
                          }
                        }

                        try {
                          percentDone = Integer.parseInt(s.substring(i, pos).trim());

                        } catch (Throwable e) {

                        }
                      }

                      setStatus(s);

                    } else {

                      error(con.getResponseCode(), s.substring(6));
                    }

                    changed_status = true;
                  }

                } catch (Throwable e) {

                  break;
                }
              }

              if (changed_status) {

                setStatus("");
              }
            }
          };

      status_reader.setDaemon(true);

      status_reader.start();

      InputStream in;

      try {
        in = this.con.getInputStream();

      } catch (FileNotFoundException e) {
        if (ignoreReponseCode) {

          in = this.con.getErrorStream();
        } else {

          throw e;
        }

      } finally {

        try {
          this_mon.enter();

          status_reader_run[0] = false;

        } finally {

          this_mon.exit();
        }
      }

      // handle some servers that return gzip'd torrents even though we don't request it!

      String encoding = con.getHeaderField("content-encoding");

      if (encoding != null) {

        if (encoding.equalsIgnoreCase("gzip")) {

          in = new GZIPInputStream(in);

        } else if (encoding.equalsIgnoreCase("deflate")) {

          in = new InflaterInputStream(in);
        }
      }

      if (this.state != STATE_ERROR) {

        this.file = new File(this.directoryname, filename);

        boolean useTempFile = false;
        try {
          this.file.createNewFile();
          useTempFile = !this.file.exists();
        } catch (Throwable t) {
          useTempFile = true;
        }

        if (useTempFile) {
          this.file = File.createTempFile("AZU", ".torrent", new File(this.directoryname));
          this.file.createNewFile();
        }

        FileOutputStream fileout = new FileOutputStream(this.file, false);

        bufBytes = 0;

        int size = (int) UrlUtils.getContentLength(con);

        this.percentDone = -1;

        do {
          if (this.cancel) {
            break;
          }

          try {
            bufBytes = in.read(buf);

            this.readTotal += bufBytes;

            if (size != 0) {
              this.percentDone = (100 * this.readTotal) / size;
            }

            notifyListener();

          } catch (IOException e) {
          }

          if (bufBytes > 0) {
            fileout.write(buf, 0, bufBytes);
          }
        } while (bufBytes > 0);

        in.close();

        fileout.flush();

        fileout.close();

        if (this.cancel) {
          this.state = STATE_CANCELLED;
          if (deleteFileOnCancel) {
            this.cleanUpFile();
          }
        } else {
          if (this.readTotal <= 0) {
            this.error(0, "No data contained in '" + this.url.toString() + "'");
            return;
          }

          // if the file has come down with a not-so-useful name then we try to rename
          // it to something more useful

          try {
            if (!filename.toLowerCase().endsWith(".torrent")) {

              TOTorrent torrent = TorrentUtils.readFromFile(file, false);

              String name = TorrentUtils.getLocalisedName(torrent) + ".torrent";

              File new_file = new File(directoryname, name);

              if (file.renameTo(new_file)) {

                filename = name;

                file = new_file;
              }
            }
          } catch (Throwable e) {

            Debug.printStackTrace(e);
          }

          //	          TorrentUtils.setObtainedFrom( file, original_url );

          this.state = STATE_FINISHED;
        }
        this.notifyListener();
      }
    } catch (Exception e) {

      if (!cancel) {

        Debug.out("'" + this.directoryname + "' '" + filename + "'", e);
      }

      this.error(0, "Exception while downloading '" + this.url.toString() + "':" + e.getMessage());
    }
  }
  protected String[] getAuthenticationDialog(final String realm, final String location) {
    final Display display = SWTThread.getInstance().getDisplay();

    if (display.isDisposed()) {

      return (null);
    }

    final AESemaphore sem = new AESemaphore("SWTAuth");

    final authDialog[] dialog = new authDialog[1];

    TOTorrent torrent = TorrentUtils.getTLSTorrent();

    final boolean is_tracker;
    final String details;

    if (torrent == null) {

      is_tracker = false;

      details = TorrentUtils.getTLSDescription();

    } else {

      details = TorrentUtils.getLocalisedName(torrent);
      is_tracker = true;
    }

    try {
      if (display.getThread() == Thread.currentThread()) {

        dialog[0] = new authDialog(sem, display, realm, is_tracker, location, details);

        while (!(display.isDisposed() || sem.isReleasedForever())) {

          if (!display.readAndDispatch()) {

            display.sleep();
          }
        }

        if (display.isDisposed()) {

          return (null);
        }
      } else {

        display.asyncExec(
            new AERunnable() {
              public void runSupport() {
                dialog[0] = new authDialog(sem, display, realm, is_tracker, location, details);
              }
            });
      }
    } catch (Throwable e) {

      Debug.printStackTrace(e);

      return (null);
    }

    sem.reserve();

    String user = dialog[0].getUsername();
    String pw = dialog[0].getPassword();
    String persist = dialog[0].savePassword() ? "true" : "false";

    if (user == null) {

      return (null);
    }

    return (new String[] {user, pw == null ? "" : pw, persist});
  }
  protected void split() throws TRTrackerAnnouncerException {

    String[] networks = f_provider == null ? null : f_provider.getNetworks();

    TRTrackerAnnouncerHelper to_activate = null;

    synchronized (this) {
      if (stopped || destroyed) {

        return;
      }

      TOTorrent torrent = getTorrent();

      TOTorrentAnnounceURLSet[] sets = torrent.getAnnounceURLGroup().getAnnounceURLSets();

      // sanitise dht entries

      if (sets.length == 0) {

        sets =
            new TOTorrentAnnounceURLSet[] {
              torrent
                  .getAnnounceURLGroup()
                  .createAnnounceURLSet(new URL[] {torrent.getAnnounceURL()})
            };

      } else {

        boolean found_decentralised = false;
        boolean modified = false;

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

          TOTorrentAnnounceURLSet set = sets[i];

          URL[] urls = set.getAnnounceURLs().clone();

          for (int j = 0; j < urls.length; j++) {

            URL u = urls[j];

            if (u != null && TorrentUtils.isDecentralised(u)) {

              if (found_decentralised) {

                modified = true;

                urls[j] = null;

              } else {

                found_decentralised = true;
              }
            }
          }
        }

        if (modified) {

          List<TOTorrentAnnounceURLSet> s_list = new ArrayList<TOTorrentAnnounceURLSet>();

          for (TOTorrentAnnounceURLSet set : sets) {

            URL[] urls = set.getAnnounceURLs();

            List<URL> u_list = new ArrayList<URL>(urls.length);

            for (URL u : urls) {

              if (u != null) {

                u_list.add(u);
              }
            }

            if (u_list.size() > 0) {

              s_list.add(
                  torrent
                      .getAnnounceURLGroup()
                      .createAnnounceURLSet(u_list.toArray(new URL[u_list.size()])));
            }
          }

          sets = s_list.toArray(new TOTorrentAnnounceURLSet[s_list.size()]);
        }
      }

      List<TOTorrentAnnounceURLSet[]> new_sets = new ArrayList<TOTorrentAnnounceURLSet[]>();

      if (is_manual || sets.length < 2) {

        new_sets.add(sets);

      } else {

        List<TOTorrentAnnounceURLSet> list =
            new ArrayList<TOTorrentAnnounceURLSet>(Arrays.asList(sets));

        // often we have http:/xxxx/ and udp:/xxxx/ as separate groups - keep these together

        while (list.size() > 0) {

          TOTorrentAnnounceURLSet set1 = list.remove(0);

          boolean done = false;

          URL[] urls1 = set1.getAnnounceURLs();

          if (urls1.length == 1) {

            URL url1 = urls1[0];

            String prot1 = url1.getProtocol().toLowerCase();
            String host1 = url1.getHost();

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

              TOTorrentAnnounceURLSet set2 = list.get(i);

              URL[] urls2 = set2.getAnnounceURLs();

              if (urls2.length == 1) {

                URL url2 = urls2[0];

                String prot2 = url2.getProtocol().toLowerCase();
                String host2 = url2.getHost();

                if (host1.equals(host2)) {

                  if ((prot1.equals("udp") && prot2.startsWith("http"))
                      || (prot2.equals("udp") && prot1.startsWith("http"))) {

                    list.remove(i);

                    new_sets.add(new TOTorrentAnnounceURLSet[] {set1, set2});

                    done = true;
                  }
                }
              }
            }
          }

          if (!done) {

            new_sets.add(new TOTorrentAnnounceURLSet[] {set1});
          }
        }
      }

      // work out the difference

      Iterator<TOTorrentAnnounceURLSet[]> ns_it = new_sets.iterator();

      // need to copy list as we modify it and returned list ain't thread safe

      List<TRTrackerAnnouncerHelper> existing_announcers =
          new ArrayList<TRTrackerAnnouncerHelper>(announcers.getList());

      List<TRTrackerAnnouncerHelper> new_announcers = new ArrayList<TRTrackerAnnouncerHelper>();

      // first look for unchanged sets

      while (ns_it.hasNext()) {

        TOTorrentAnnounceURLSet[] ns = ns_it.next();

        Iterator<TRTrackerAnnouncerHelper> a_it = existing_announcers.iterator();

        while (a_it.hasNext()) {

          TRTrackerAnnouncerHelper a = a_it.next();

          TOTorrentAnnounceURLSet[] os = a.getAnnounceSets();

          if (same(ns, os)) {

            ns_it.remove();
            a_it.remove();

            new_announcers.add(a);

            break;
          }
        }
      }

      // reuse existing announcers

      // first remove dht ones from the equation

      TRTrackerAnnouncerHelper existing_dht_announcer = null;
      TOTorrentAnnounceURLSet[] new_dht_set = null;

      ns_it = new_sets.iterator();

      while (ns_it.hasNext()) {

        TOTorrentAnnounceURLSet[] x = ns_it.next();

        if (TorrentUtils.isDecentralised(x[0].getAnnounceURLs()[0])) {

          new_dht_set = x;

          ns_it.remove();

          break;
        }
      }

      Iterator<TRTrackerAnnouncerHelper> an_it = existing_announcers.iterator();

      while (an_it.hasNext()) {

        TRTrackerAnnouncerHelper a = an_it.next();

        TOTorrentAnnounceURLSet[] x = a.getAnnounceSets();

        if (TorrentUtils.isDecentralised(x[0].getAnnounceURLs()[0])) {

          existing_dht_announcer = a;

          an_it.remove();

          break;
        }
      }

      if (existing_dht_announcer != null && new_dht_set != null) {

        new_announcers.add(existing_dht_announcer);

      } else if (existing_dht_announcer != null) {

        activated.remove(existing_dht_announcer);

        existing_dht_announcer.destroy();

      } else if (new_dht_set != null) {

        TRTrackerAnnouncerHelper a = create(torrent, networks, new_dht_set);

        new_announcers.add(a);
      }

      // now do the non-dht ones

      ns_it = new_sets.iterator();

      while (ns_it.hasNext() && existing_announcers.size() > 0) {

        TRTrackerAnnouncerHelper a = existing_announcers.remove(0);

        TOTorrentAnnounceURLSet[] s = ns_it.next();

        ns_it.remove();

        if (activated.contains(a)
            && torrent.getPrivate()
            && a instanceof TRTrackerBTAnnouncerImpl) {

          URL url = a.getTrackerURL();

          if (url != null) {

            forceStop((TRTrackerBTAnnouncerImpl) a, networks, url);
          }
        }

        a.setAnnounceSets(s, networks);

        new_announcers.add(a);
      }

      // create any new ones required

      ns_it = new_sets.iterator();

      while (ns_it.hasNext()) {

        TOTorrentAnnounceURLSet[] s = ns_it.next();

        TRTrackerAnnouncerHelper a = create(torrent, networks, s);

        new_announcers.add(a);
      }

      // finally fix up the announcer list to represent the new state

      Iterator<TRTrackerAnnouncerHelper> a_it = announcers.iterator();

      while (a_it.hasNext()) {

        TRTrackerAnnouncerHelper a = a_it.next();

        if (!new_announcers.contains(a)) {

          a_it.remove();

          try {
            if (activated.contains(a)
                && torrent.getPrivate()
                && a instanceof TRTrackerBTAnnouncerImpl) {

              URL url = a.getTrackerURL();

              if (url != null) {

                forceStop((TRTrackerBTAnnouncerImpl) a, networks, url);
              }
            }
          } finally {

            if (Logger.isEnabled()) {
              Logger.log(
                  new LogEvent(
                      getTorrent(), LOGID, "Deactivating " + getString(a.getAnnounceSets())));
            }

            activated.remove(a);

            a.destroy();
          }
        }
      }

      a_it = new_announcers.iterator();

      while (a_it.hasNext()) {

        TRTrackerAnnouncerHelper a = a_it.next();

        if (!announcers.contains(a)) {

          announcers.add(a);
        }
      }

      if (!is_manual && announcers.size() > 0) {

        if (activated.size() == 0) {

          TRTrackerAnnouncerHelper a = announcers.get(0);

          if (Logger.isEnabled()) {
            Logger.log(
                new LogEvent(getTorrent(), LOGID, "Activating " + getString(a.getAnnounceSets())));
          }

          activated.add(a);

          last_activation_time = SystemTime.getMonotonousTime();

          if (provider != null) {

            to_activate = a;
          }
        }

        setupActivationCheck(ACT_CHECK_INIT_DELAY);
      }
    }

    if (to_activate != null) {

      if (complete) {

        to_activate.complete(true);

      } else {

        to_activate.update(false);
      }
    }
  }