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

Example 16 with LeaseSet

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

the class KademliaNetworkDatabaseFacade method processStoreFailure.

/**
 *  If the validate fails, call this
 *  to determine if it was because of unsupported crypto.
 *
 *  If so, this will banlist-forever the router hash or permanently negative cache the dest hash,
 *  and then throw the exception. Otherwise it does nothing.
 *
 *  @throws UnsupportedCryptoException if that's why it failed.
 *  @since 0.9.16
 */
private void processStoreFailure(Hash h, DatabaseEntry entry) throws UnsupportedCryptoException {
    if (entry.getHash().equals(h)) {
        if (entry.getType() == DatabaseEntry.KEY_TYPE_LEASESET) {
            LeaseSet ls = (LeaseSet) entry;
            Destination d = ls.getDestination();
            Certificate c = d.getCertificate();
            if (c.getCertificateType() == Certificate.CERTIFICATE_TYPE_KEY) {
                try {
                    KeyCertificate kc = c.toKeyCertificate();
                    SigType type = kc.getSigType();
                    if (type == null || !type.isAvailable() || type.getBaseAlgorithm() == SigAlgo.RSA) {
                        failPermanently(d);
                        String stype = (type != null) ? type.toString() : Integer.toString(kc.getSigTypeCode());
                        if (_log.shouldLog(Log.WARN))
                            _log.warn("Unsupported sig type " + stype + " for destination " + h);
                        throw new UnsupportedCryptoException("Sig type " + stype);
                    }
                } catch (DataFormatException dfe) {
                }
            }
        } else if (entry.getType() == DatabaseEntry.KEY_TYPE_ROUTERINFO) {
            RouterInfo ri = (RouterInfo) entry;
            RouterIdentity id = ri.getIdentity();
            Certificate c = id.getCertificate();
            if (c.getCertificateType() == Certificate.CERTIFICATE_TYPE_KEY) {
                try {
                    KeyCertificate kc = c.toKeyCertificate();
                    SigType type = kc.getSigType();
                    if (type == null || !type.isAvailable()) {
                        String stype = (type != null) ? type.toString() : Integer.toString(kc.getSigTypeCode());
                        _context.banlist().banlistRouterForever(h, "Unsupported signature type " + stype);
                        if (_log.shouldLog(Log.WARN))
                            _log.warn("Unsupported sig type " + stype + " for router " + h);
                        throw new UnsupportedCryptoException("Sig type " + stype);
                    }
                } catch (DataFormatException dfe) {
                }
            }
        }
    }
    if (_log.shouldLog(Log.WARN))
        _log.warn("Verify fail, cause unknown: " + entry);
}

Example 17 with LeaseSet

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

the class RepublishLeaseSetJob method runJob.

public void runJob() {
    if (!getContext().clientManager().shouldPublishLeaseSet(_dest))
        return;
    try {
        if (getContext().clientManager().isLocal(_dest)) {
            LeaseSet ls = _facade.lookupLeaseSetLocally(_dest);
            if (ls != null) {
                if (!ls.isCurrent(Router.CLOCK_FUDGE_FACTOR)) {
                    if (_log.shouldLog(Log.WARN))
                        _log.warn("Not publishing a LOCAL lease that isn't current - " + _dest, new Exception("Publish expired LOCAL lease?"));
                } else {
                    if (_log.shouldLog(Log.INFO))
                        _log.info("Publishing " + ls);
                    getContext().statManager().addRateData("netDb.republishLeaseSetCount", 1);
                    _facade.sendStore(_dest, ls, null, new OnRepublishFailure(getContext(), this), REPUBLISH_LEASESET_TIMEOUT, null);
                    _lastPublished = getContext().clock().now();
                // getContext().jobQueue().addJob(new StoreJob(getContext(), _facade, _dest, ls, new OnSuccess(getContext()), new OnFailure(getContext()), REPUBLISH_LEASESET_TIMEOUT));
                }
            } else {
                if (_log.shouldLog(Log.WARN))
                    _log.warn("Client " + _dest + " is local, but we can't find a valid LeaseSet?  perhaps its being rebuilt?");
            }
            // }
            return;
        } else {
            if (_log.shouldLog(Log.INFO))
                _log.info("Client " + _dest + " is no longer local, so no more republishing their leaseSet");
        }
        _facade.stopPublishing(_dest);
    } catch (RuntimeException re) {
        if (_log.shouldLog(Log.ERROR))
            _log.error("Uncaught error republishing the leaseSet", re);
        _facade.stopPublishing(_dest);
        throw re;
    }
}

Example 18 with LeaseSet

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

the class CreateLeaseSetMessage method doReadMessage.

@Override
protected void doReadMessage(InputStream in, int size) throws I2CPMessageException, IOException {
    try {
        _sessionId = new SessionId();
        _sessionId.readBytes(in);
        // Revocation is unimplemented.
        // As the SPK comes before the LeaseSet, we don't know the key type.
        // We could have some sort of callback or state setting so we get the
        // expected type from the session. But for now, we just assume it's 20 bytes.
        // Clients outside router context should throw in a dummy 20 bytes.
        _signingPrivateKey = new SigningPrivateKey();
        _signingPrivateKey.readBytes(in);
        _privateKey = new PrivateKey();
        _privateKey.readBytes(in);
        _leaseSet = new LeaseSet();
        _leaseSet.readBytes(in);
    } catch (DataFormatException dfe) {
        throw new I2CPMessageException("Error reading the CreateLeaseSetMessage", dfe);
    }
}

Example 19 with LeaseSet

use of net.i2p.data.LeaseSet 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 20 with LeaseSet

use of net.i2p.data.LeaseSet 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;
}