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

Example 26 with LeaseSet

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

the class HandleFloodfillDatabaseStoreMessageJob method runJob.

public void runJob() {
    // if (_log.shouldLog(Log.DEBUG))
    // _log.debug("Handling database store message");
    long recvBegin = System.currentTimeMillis();
    String invalidMessage = null;
    // set if invalid store but not his fault
    boolean dontBlamePeer = false;
    boolean wasNew = false;
    RouterInfo prevNetDb = null;
    Hash key = _message.getKey();
    DatabaseEntry entry = _message.getEntry();
    if (entry.getType() == DatabaseEntry.KEY_TYPE_LEASESET) {
        getContext().statManager().addRateData("netDb.storeLeaseSetHandled", 1);
        if (_log.shouldLog(Log.INFO))
            _log.info("Handling dbStore of leaseset " + _message);
        try {
            // storing the other guy's leaseset, it will confuse us badly.
            if (getContext().clientManager().isLocal(key)) {
                // getContext().statManager().addRateData("netDb.storeLocalLeaseSetAttempt", 1, 0);
                // throw rather than return, so that we send the ack below (prevent easy attack)
                dontBlamePeer = true;
                throw new IllegalArgumentException("Peer attempted to store local leaseSet: " + key.toBase64().substring(0, 4));
            }
            LeaseSet ls = (LeaseSet) entry;
            // See ../HDLMJ for more info
            if (!ls.getReceivedAsReply())
                ls.setReceivedAsPublished(true);
            // boolean rap = ls.getReceivedAsPublished();
            // if (_log.shouldLog(Log.INFO))
            // _log.info("oldrap? " + oldrap + " oldrar? " + oldrar + " newrap? " + rap);
            LeaseSet match = getContext().netDb().store(key, ls);
            if (match == null) {
                wasNew = true;
            } else if (match.getEarliestLeaseDate() < ls.getEarliestLeaseDate()) {
                wasNew = true;
                if (match.getReceivedAsPublished())
                    ls.setReceivedAsPublished(true);
            } else {
                wasNew = false;
            // The FloodOnlyLookupSelector goes away after the first good reply
            // So on the second reply, FloodOnlyMatchJob is not called to set ReceivedAsReply.
            // So then we think it's an unsolicited store.
            // So we should skip this.
            // If the 2nd reply is newer than the first, ReceivedAsPublished will be set incorrectly,
            // that will hopefully be rare.
            // A more elaborate solution would be a List of recent ReceivedAsReply LeaseSets, with receive time ?
            // A real unsolicited store is likely to be new - hopefully...
            // if (!ls.getReceivedAsReply())
            // match.setReceivedAsPublished(true);
            }
        } catch (UnsupportedCryptoException uce) {
            invalidMessage = uce.getMessage();
            dontBlamePeer = true;
        } catch (IllegalArgumentException iae) {
            invalidMessage = iae.getMessage();
        }
    } else if (entry.getType() == DatabaseEntry.KEY_TYPE_ROUTERINFO) {
        RouterInfo ri = (RouterInfo) entry;
        getContext().statManager().addRateData("netDb.storeRouterInfoHandled", 1);
        if (_log.shouldLog(Log.INFO))
            _log.info("Handling dbStore of router " + key + " with publishDate of " + new Date(ri.getPublished()));
        try {
            // somebody has our keys...
            if (getContext().routerHash().equals(key)) {
                // getContext().statManager().addRateData("netDb.storeLocalRouterInfoAttempt", 1, 0);
                // This is initiated by PeerTestJob from another peer
                // throw rather than return, so that we send the ack below (prevent easy attack)
                dontBlamePeer = true;
                throw new IllegalArgumentException("Peer attempted to store our RouterInfo");
            }
            getContext().profileManager().heardAbout(key);
            prevNetDb = getContext().netDb().store(key, ri);
            wasNew = ((null == prevNetDb) || (prevNetDb.getPublished() < ri.getPublished()));
            // Check new routerinfo address against blocklist
            if (wasNew) {
                if (prevNetDb == null) {
                    if ((!getContext().banlist().isBanlistedForever(key)) && getContext().blocklist().isBlocklisted(ri) && _log.shouldLog(Log.WARN))
                        _log.warn("Blocklisting new peer " + key + ' ' + ri);
                } else {
                    Collection<RouterAddress> oldAddr = prevNetDb.getAddresses();
                    Collection<RouterAddress> newAddr = ri.getAddresses();
                    if ((!newAddr.equals(oldAddr)) && (!getContext().banlist().isBanlistedForever(key)) && getContext().blocklist().isBlocklisted(ri) && _log.shouldLog(Log.WARN))
                        _log.warn("New address received, Blocklisting old peer " + key + ' ' + ri);
                }
            }
        } catch (UnsupportedCryptoException uce) {
            invalidMessage = uce.getMessage();
            dontBlamePeer = true;
        } catch (IllegalArgumentException iae) {
            invalidMessage = iae.getMessage();
        }
    } else {
        if (_log.shouldLog(Log.ERROR))
            _log.error("Invalid DatabaseStoreMessage data type - " + entry.getType() + ": " + _message);
        // don't ack or flood
        return;
    }
    long recvEnd = System.currentTimeMillis();
    getContext().statManager().addRateData("netDb.storeRecvTime", recvEnd - recvBegin);
    // TODO any cases where we shouldn't?
    if (_message.getReplyToken() > 0)
        sendAck(key);
    long ackEnd = System.currentTimeMillis();
    if (_from != null)
        _fromHash = _from.getHash();
    if (_fromHash != null) {
        if (invalidMessage == null || dontBlamePeer) {
            getContext().profileManager().dbStoreReceived(_fromHash, wasNew);
            getContext().statManager().addRateData("netDb.storeHandled", ackEnd - recvEnd);
        } else {
            // Should we record in the profile?
            if (_log.shouldLog(Log.WARN))
                _log.warn("Peer " + _fromHash.toBase64() + " sent bad data: " + invalidMessage);
        }
    } else if (invalidMessage != null && !dontBlamePeer) {
        if (_log.shouldLog(Log.WARN))
            _log.warn("Unknown peer sent bad data: " + invalidMessage);
    }
    // flood it
    if (invalidMessage == null && getContext().netDb().floodfillEnabled() && _message.getReplyToken() > 0) {
        if (wasNew) {
            // Note this does not throttle the ack above
            if (_facade.shouldThrottleFlood(key)) {
                if (_log.shouldLog(Log.WARN))
                    _log.warn("Too many recent stores, not flooding key: " + key);
                getContext().statManager().addRateData("netDb.floodThrottled", 1);
                return;
            }
            long floodBegin = System.currentTimeMillis();
            _facade.flood(_message.getEntry());
            // ERR: see comment in HandleDatabaseLookupMessageJob regarding hidden mode
            // else if (!_message.getRouterInfo().isHidden())
            long floodEnd = System.currentTimeMillis();
            getContext().statManager().addRateData("netDb.storeFloodNew", floodEnd - floodBegin, 60 * 1000);
        } else {
            // don't flood it *again*
            getContext().statManager().addRateData("netDb.storeFloodOld", 1);
        }
    }
}

Example 27 with LeaseSet

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

the class ClientConnectionRunner method stopRunning.

/**
 *  Die a horrible death. Cannot be restarted.
 */
public synchronized void stopRunning() {
    if (_dead)
        return;
    // router may be null in unit tests
    if ((_context.router() == null || _context.router().isAlive()) && _log.shouldWarn())
        _log.warn("Stop the I2CP connection!", new Exception("Stop client connection"));
    _dead = true;
    // we need these keys to unpublish the leaseSet
    if (_reader != null)
        _reader.stopReading();
    if (_writer != null)
        _writer.stopWriting();
    if (_socket != null)
        try {
            _socket.close();
        } catch (IOException ioe) {
        }
    _messages.clear();
    _acceptedPending.clear();
    if (_sessionKeyManager != null)
        _sessionKeyManager.shutdown();
    _manager.unregisterConnection(this);
    // netdb may be null in unit tests
    if (_context.netDb() != null) {
        for (SessionParams sp : _sessions.values()) {
            LeaseSet ls = sp.currentLeaseSet;
            if (ls != null)
                _context.netDb().unpublish(ls);
            if (!sp.isPrimary)
                _context.tunnelManager().removeAlias(sp.dest);
        }
    }
    synchronized (_alreadyProcessed) {
        _alreadyProcessed.clear();
    }
    _sessions.clear();
}

Example 28 with LeaseSet

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

the class ClientConnectionRunner method removeSession.

/**
 *  Kill the session. Caller must kill runner if none left.
 *
 *  @since 0.9.21
 */
void removeSession(SessionId id) {
    if (id == null)
        return;
    boolean isPrimary = false;
    for (Iterator<SessionParams> iter = _sessions.values().iterator(); iter.hasNext(); ) {
        SessionParams sp = iter.next();
        if (id.equals(sp.sessionId)) {
            if (_log.shouldLog(Log.INFO))
                _log.info("Destroying client session " + id);
            iter.remove();
            // Tell client manger
            _manager.unregisterSession(id, sp.dest);
            LeaseSet ls = sp.currentLeaseSet;
            if (ls != null)
                _context.netDb().unpublish(ls);
            isPrimary = sp.isPrimary;
            if (!isPrimary)
                _context.tunnelManager().removeAlias(sp.dest);
            break;
        }
    }
    if (isPrimary && !_sessions.isEmpty()) {
        // kill all the others also
        for (SessionParams sp : _sessions.values()) {
            if (_log.shouldLog(Log.INFO))
                _log.info("Destroying remaining client subsession " + sp.sessionId);
            _manager.unregisterSession(sp.sessionId, sp.dest);
            LeaseSet ls = sp.currentLeaseSet;
            if (ls != null)
                _context.netDb().unpublish(ls);
            _context.tunnelManager().removeAlias(sp.dest);
        }
    }
}

Example 29 with LeaseSet

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

the class ClientManagerFacadeImpl method verifyClientLiveliness.

@Override
public boolean verifyClientLiveliness() {
    if (_manager == null)
        return true;
    boolean lively = true;
    for (Destination dest : _manager.getRunnerDestinations()) {
        ClientConnectionRunner runner = _manager.getRunner(dest);
        if ((runner == null) || (runner.getIsDead()))
            continue;
        LeaseSet ls = runner.getLeaseSet(dest.calculateHash());
        if (ls == null)
            // still building
            continue;
        long howLongAgo = _context.clock().now() - ls.getEarliestLeaseDate();
        if (howLongAgo > MAX_TIME_TO_REBUILD) {
            if (_log.shouldLog(Log.ERROR))
                _log.error("Client " + dest.toBase32() + " has a leaseSet that expired " + DataHelper.formatDuration(howLongAgo) + " ago");
            lively = false;
        }
    }
    return lively;
}