Examples with Lease net.i2p.data.Lease used on opensource projects

Example 1 with Lease

use of net.i2p.data.Lease in project i2p.i2p by i2p.

the class NetDbRenderer method renderLeaseSetHTML.

/**
 *  @param debug @since 0.7.14 sort by distance from us, display
 *               median distance, and other stuff, useful when floodfill
 */
public void renderLeaseSetHTML(Writer out, boolean debug) throws IOException {
    StringBuilder buf = new StringBuilder(4 * 1024);
    if (debug)
        buf.append("<p id=\"debugmode\">Debug mode - Sorted by hash distance, closest first</p>\n");
    Hash ourRKey;
    Set<LeaseSet> leases;
    DecimalFormat fmt;
    if (debug) {
        ourRKey = _context.routerHash();
        leases = new TreeSet<LeaseSet>(new LeaseSetRoutingKeyComparator(ourRKey));
        fmt = new DecimalFormat("#0.00");
    } else {
        ourRKey = null;
        leases = new TreeSet<LeaseSet>(new LeaseSetComparator());
        fmt = null;
    }
    leases.addAll(_context.netDb().getLeases());
    int medianCount = 0;
    int rapCount = 0;
    BigInteger median = null;
    int c = 0;
    // Summary
    FloodfillNetworkDatabaseFacade netdb = (FloodfillNetworkDatabaseFacade) _context.netDb();
    if (debug) {
        buf.append("<table id=\"leasesetdebug\">\n");
    } else {
        buf.append("<table id=\"leasesetsummary\">\n");
    }
    buf.append("<tr><th colspan=\"3\">Leaseset Summary</th>").append("<th><a href=\"/configadvanced\" title=\"").append(_t("Manually Configure Floodfill Participation")).append("\">[").append(_t("Configure Floodfill Participation")).append("]</a></th></tr>\n").append("<tr><td><b>Total Leasesets:</b></td><td colspan=\"3\">").append(leases.size()).append("</td></tr>\n");
    if (debug) {
        buf.append("<tr><td><b>Published (RAP) Leasesets:</b></td><td colspan=\"3\">").append(netdb.getKnownLeaseSets()).append("</td></tr>\n").append("<tr><td><b>Mod Data:</b></td><td>").append(DataHelper.getUTF8(_context.routerKeyGenerator().getModData())).append("</td>").append("<td><b>Last Changed:</b></td><td>").append(new Date(_context.routerKeyGenerator().getLastChanged())).append("</td></tr>\n").append("<tr><td><b>Next Mod Data:</b></td><td>").append(DataHelper.getUTF8(_context.routerKeyGenerator().getNextModData())).append("</td>").append("<td><b>Change in:</b></td><td>").append(DataHelper.formatDuration(_context.routerKeyGenerator().getTimeTillMidnight())).append("</td></tr>\n");
    }
    int ff = _context.peerManager().getPeersByCapability(FloodfillNetworkDatabaseFacade.CAPABILITY_FLOODFILL).size();
    buf.append("<tr><td><b>Known Floodfills:</b></td><td colspan=\"3\">").append(ff).append("</td></tr>\n").append("<tr><td><b>Currently Floodfill?</b></td><td colspan=\"3\">").append(netdb.floodfillEnabled() ? "yes" : "no").append("</td></tr>\n");
    buf.append("</table>\n");
    if (leases.isEmpty()) {
        if (!debug)
            buf.append("<div id=\"noleasesets\"><i>").append(_t("No Leasesets currently active.")).append("</i></div>");
    } else {
        if (debug) {
            // Find the center of the RAP leasesets
            for (LeaseSet ls : leases) {
                if (ls.getReceivedAsPublished())
                    rapCount++;
            }
            medianCount = rapCount / 2;
        }
        boolean linkSusi = WebAppStarter.isWebAppRunning("susidns");
        long now = _context.clock().now();
        buf.append("<div class=\"leasesets_container\">");
        for (LeaseSet ls : leases) {
            Destination dest = ls.getDestination();
            Hash key = dest.calculateHash();
            buf.append("<table class=\"leaseset\">\n").append("<tr><th><b>").append(_t("LeaseSet")).append(":</b>&nbsp;<code>").append(key.toBase64()).append("</code>");
            if (_context.keyRing().get(key) != null)
                buf.append(" (").append(_t("Encrypted")).append(')');
            buf.append("</th>");
            if (_context.clientManager().isLocal(dest)) {
                buf.append("<th><a href=\"tunnels#" + key.toBase64().substring(0, 4) + "\">" + _t("Local") + "</a> ");
                boolean unpublished = !_context.clientManager().shouldPublishLeaseSet(key);
                if (unpublished)
                    buf.append("<b>").append(_t("Unpublished")).append("</b> ");
                buf.append("<b>").append(_t("Destination")).append(":</b> ");
                TunnelPoolSettings in = _context.tunnelManager().getInboundSettings(key);
                if (in != null && in.getDestinationNickname() != null)
                    buf.append(in.getDestinationNickname());
                else
                    buf.append(dest.toBase64().substring(0, 6));
                buf.append("</th></tr>\n<tr><td");
                // If the dest is published but not in the addressbook, an extra
                // <td> is appended with an "Add to addressbook" link, so this
                // <td> should not span 2 columns.
                String host = null;
                if (!unpublished) {
                    host = _context.namingService().reverseLookup(dest);
                }
                if (unpublished || host != null || !linkSusi) {
                    buf.append(" colspan=\"2\"");
                }
                buf.append(">");
                String b32 = dest.toBase32();
                buf.append("<a href=\"http://").append(b32).append("\">").append(b32).append("</a></td>");
                if (linkSusi && !unpublished) {
                    if (host == null) {
                        buf.append("<td class=\"addtobook\" colspan=\"2\">").append("<a title=\"").append(_t("Add to addressbook")).append("\" href=\"/susidns/addressbook.jsp?book=private&amp;destination=").append(dest.toBase64()).append("#add\">").append(_t("Add to local addressbook")).append("</a></td>");
                    }
                }
            // else probably a client
            } else {
                buf.append("<th><b>").append(_t("Destination")).append(":</b> ");
                String host = _context.namingService().reverseLookup(dest);
                if (host != null) {
                    buf.append("<a href=\"http://").append(host).append("/\">").append(host).append("</a></th>");
                } else {
                    String b32 = dest.toBase32();
                    buf.append("<code>").append(dest.toBase64().substring(0, 6)).append("</code></th>").append("</tr>\n<tr><td");
                    if (!linkSusi)
                        buf.append(" colspan=\"2\"");
                    buf.append("><a href=\"http://").append(b32).append("\">").append(b32).append("</a></td>\n");
                    if (linkSusi) {
                        buf.append("<td class=\"addtobook\"><a title=\"").append(_t("Add to addressbook")).append("\" href=\"/susidns/addressbook.jsp?book=private&amp;destination=").append(dest.toBase64()).append("#add\">").append(_t("Add to local addressbook")).append("</a></td>");
                    }
                }
            }
            buf.append("</tr>\n<tr><td colspan=\"2\">\n");
            long exp = ls.getLatestLeaseDate() - now;
            if (exp > 0)
                buf.append("<b>").append(_t("Expires in {0}", DataHelper.formatDuration2(exp))).append("</b>");
            else
                buf.append("<b>").append(_t("Expired {0} ago", DataHelper.formatDuration2(0 - exp))).append("</b>");
            buf.append("</td></tr>\n");
            if (debug) {
                buf.append("<tr><td colspan=\"2\">");
                buf.append("<b>RAP?</b> ").append(ls.getReceivedAsPublished());
                buf.append("&nbsp;&nbsp;<b>RAR?</b> ").append(ls.getReceivedAsReply());
                BigInteger dist = HashDistance.getDistance(ourRKey, ls.getRoutingKey());
                if (ls.getReceivedAsPublished()) {
                    if (c++ == medianCount)
                        median = dist;
                }
                buf.append("&nbsp;&nbsp;<b>Distance: </b>").append(fmt.format(biLog2(dist)));
                buf.append("</td></tr>\n<tr><td colspan=\"2\">");
                // buf.append(dest.toBase32()).append("<br>");
                buf.append("<b>Signature type:</b> ").append(dest.getSigningPublicKey().getType());
                buf.append("&nbsp;&nbsp;<b>Encryption Key:</b> ").append(ls.getEncryptionKey().toBase64().substring(0, 20)).append("&hellip;");
                buf.append("</td></tr>\n<tr><td colspan=\"2\">");
                buf.append("<b>Routing Key:</b> ").append(ls.getRoutingKey().toBase64());
                buf.append("</td></tr>");
            }
            buf.append("<tr><td colspan=\"2\"><ul class=\"netdb_leases\">");
            for (int i = 0; i < ls.getLeaseCount(); i++) {
                Lease lease = ls.getLease(i);
                buf.append("<li><b>").append(_t("Lease")).append(' ').append(i + 1).append(":</b> <span class=\"netdb_gateway\" title=\"").append(_t("Gateway")).append("\"><img src=\"themes/console/images/info/gateway.png\" alt=\"").append(_t("Gateway")).append("\"></span> <span class=\"tunnel_peer\">");
                buf.append(_context.commSystem().renderPeerHTML(lease.getGateway()));
                buf.append("</span> <span class=\"netdb_tunnel\">").append(_t("Tunnel")).append(" <span class=\"tunnel_id\">").append(lease.getTunnelId().getTunnelId()).append("</span></span> ");
                if (debug) {
                    long exl = lease.getEndDate().getTime() - now;
                    if (exl > 0)
                        buf.append("<b class=\"netdb_expiry\">").append(_t("Expires in {0}", DataHelper.formatDuration2(exl))).append("</b>");
                    else
                        buf.append("<b class=\"netdb_expiry\">").append(_t("Expired {0} ago", DataHelper.formatDuration2(0 - exl))).append("</b>");
                }
                buf.append("</li>");
            }
            buf.append("</ul></td></tr>\n");
            buf.append("</table>\n");
            out.write(buf.toString());
            buf.setLength(0);
        }
        // for each
        if (debug) {
            buf.append("<table id=\"leasesetdebug\"><tr><td><b>Network data (only valid if floodfill):</b></td><td colspan=\"3\">");
            // buf.append("</b></p><p><b>Center of Key Space (router hash): " + ourRKey.toBase64());
            if (median != null) {
                double log2 = biLog2(median);
                buf.append("</td></tr>").append("<tr><td><b>Median distance (bits):</b></td><td colspan=\"3\">").append(fmt.format(log2)).append("</td></tr>\n");
                // 2 for 4 floodfills... -1 for median
                // this can be way off for unknown reasons
                int total = (int) Math.round(Math.pow(2, 2 + 256 - 1 - log2));
                buf.append("<tr><td><b>Estimated total floodfills:</b></td><td colspan=\"3\">").append(total).append("</td></tr>\n");
                buf.append("<tr><td><b>Estimated total leasesets:</b></td><td colspan=\"3\">").append(total * rapCount / 4);
            } else {
                buf.append("<i>Not floodfill or no data.</i>");
            }
            buf.append("</td></tr></table>\n");
        }
        // median table
        buf.append("</div>");
    }
    // !empty
    out.write(buf.toString());
    out.flush();
}

Example 2 with Lease

use of net.i2p.data.Lease in project i2p.i2p by i2p.

the class RequestLeaseSetMessageHandler method handleMessage.

public void handleMessage(I2CPMessage message, I2PSessionImpl session) {
    if (_log.shouldLog(Log.DEBUG))
        _log.debug("Handle message " + message);
    RequestLeaseSetMessage msg = (RequestLeaseSetMessage) message;
    LeaseSet leaseSet = new LeaseSet();
    for (int i = 0; i < msg.getEndpoints(); i++) {
        Lease lease = new Lease();
        lease.setGateway(msg.getRouter(i));
        lease.setTunnelId(msg.getTunnelId(i));
        lease.setEndDate(msg.getEndDate());
        // lease.setStartDate(msg.getStartDate());
        leaseSet.addLease(lease);
    }
    signLeaseSet(leaseSet, session);
}

Example 3 with Lease

use of net.i2p.data.Lease in project i2p.i2p by i2p.

the class TunnelPool method locked_buildNewLeaseSet.

/**
 * Build a leaseSet with the required tunnels that aren't about to expire.
 * Caller must synchronize on _tunnels.
 *
 * @return null on failure
 */
protected LeaseSet locked_buildNewLeaseSet() {
    if (!_alive)
        return null;
    int wanted = Math.min(_settings.getQuantity(), LeaseSet.MAX_LEASES);
    if (_tunnels.size() < wanted) {
        if (_log.shouldLog(Log.WARN))
            _log.warn(toString() + ": Not enough tunnels (" + _tunnels.size() + ", wanted " + wanted + ")");
        // see comment below
        if (_tunnels.isEmpty())
            return null;
    }
    // + _settings.getRebuildPeriod();
    long expireAfter = _context.clock().now();
    TunnelInfo zeroHopTunnel = null;
    Lease zeroHopLease = null;
    TreeSet<Lease> leases = new TreeSet<Lease>(new LeaseComparator());
    for (int i = 0; i < _tunnels.size(); i++) {
        TunnelInfo tunnel = _tunnels.get(i);
        if (tunnel.getExpiration() <= expireAfter)
            // expires too soon, skip it
            continue;
        if (tunnel.getLength() <= 1) {
            // Keep only the one that expires the latest.
            if (zeroHopTunnel != null) {
                if (zeroHopTunnel.getExpiration() > tunnel.getExpiration())
                    continue;
                if (zeroHopLease != null)
                    leases.remove(zeroHopLease);
            }
            zeroHopTunnel = tunnel;
        }
        TunnelId inId = tunnel.getReceiveTunnelId(0);
        Hash gw = tunnel.getPeer(0);
        if ((inId == null) || (gw == null)) {
            _log.error(toString() + ": broken? tunnel has no inbound gateway/tunnelId? " + tunnel);
            continue;
        }
        Lease lease = new Lease();
        // bugfix
        // ExpireJob reduces the expiration, which causes a 2nd leaseset with the same lease
        // to have an earlier expiration, so it isn't stored.
        // Get the "real" expiration from the gateway hop config,
        // HopConfig expirations are the same as the "real" expiration and don't change
        // see configureNewTunnel()
        lease.setEndDate(new Date(((TunnelCreatorConfig) tunnel).getConfig(0).getExpiration()));
        lease.setTunnelId(inId);
        lease.setGateway(gw);
        leases.add(lease);
        // remember in case we want to remove it for a later-expiring zero-hopper
        if (tunnel.getLength() <= 1)
            zeroHopLease = lease;
    }
    // Do we want a config option for this, or are there times when we shouldn't do this?
    if (leases.size() < wanted) {
        if (_log.shouldLog(Log.WARN))
            _log.warn(toString() + ": Not enough leases (" + leases.size() + ", wanted " + wanted + ")");
        if (leases.isEmpty())
            return null;
    }
    LeaseSet ls = new LeaseSet();
    Iterator<Lease> iter = leases.iterator();
    int count = Math.min(leases.size(), wanted);
    for (int i = 0; i < count; i++) ls.addLease(iter.next());
    if (_log.shouldLog(Log.INFO))
        _log.info(toString() + ": built new leaseSet: " + ls);
    return ls;
}

Example 4 with Lease

use of net.i2p.data.Lease in project i2p.i2p by i2p.

the class AliasedTunnelPool method locked_buildNewLeaseSet.

@Override
protected LeaseSet locked_buildNewLeaseSet() {
    LeaseSet ls = _context.netDb().lookupLeaseSetLocally(_aliasOf.getSettings().getDestination());
    if (ls == null)
        return null;
    // copy everything so it isn't corrupted
    LeaseSet rv = new LeaseSet();
    for (int i = 0; i < ls.getLeaseCount(); i++) {
        Lease old = ls.getLease(i);
        Lease lease = new Lease();
        lease.setEndDate(old.getEndDate());
        lease.setTunnelId(old.getTunnelId());
        lease.setGateway(old.getGateway());
        rv.addLease(lease);
    }
    return rv;
}

Example 5 with Lease

use of net.i2p.data.Lease in project i2p.i2p by i2p.

the class RequestVariableLeaseSetMessage method doReadMessage.

@Override
protected void doReadMessage(InputStream in, int size) throws I2CPMessageException, IOException {
    try {
        if (_sessionId != null)
            throw new IllegalStateException();
        _sessionId = new SessionId();
        _sessionId.readBytes(in);
        int numTunnels = (int) DataHelper.readLong(in, 1);
        for (int i = 0; i < numTunnels; i++) {
            Lease lease = new Lease();
            lease.readBytes(in);
            _endpoints.add(lease);
        }
    } catch (DataFormatException dfe) {
        throw new I2CPMessageException("Unable to load the message data", dfe);
    }
}