Examples with InvalidBEncodingException org.klomp.snark.bencode.InvalidBEncodingException used on opensource projects

Example 1 with InvalidBEncodingException

use of org.klomp.snark.bencode.InvalidBEncodingException in project i2p.i2p by i2p.

the class KRPC method receiveMessage.

// /// Reception.....
/**
 *  @param from dest or null if it didn't come in on signed port
 */
private void receiveMessage(Destination from, int fromPort, byte[] payload) {
    try {
        InputStream is = new ByteArrayInputStream(payload);
        BDecoder dec = new BDecoder(is);
        BEValue bev = dec.bdecodeMap();
        Map<String, BEValue> map = bev.getMap();
        if (_log.shouldLog(Log.DEBUG))
            _log.debug("Got KRPC message " + bev.toString());
        // Lazy here, just let missing Map entries throw NPEs, caught below
        byte[] msgIDBytes = map.get("t").getBytes();
        MsgID mID = new MsgID(msgIDBytes);
        String type = map.get("y").getString();
        if (type.equals("q")) {
            // queries must be repliable
            String method = map.get("q").getString();
            Map<String, BEValue> args = map.get("a").getMap();
            receiveQuery(mID, from, fromPort, method, args);
        } else if (type.equals("r") || type.equals("e")) {
            // get dest from id->dest map
            ReplyWaiter waiter = _sentQueries.remove(mID);
            if (waiter != null) {
                // TODO verify waiter NID and port?
                if (type.equals("r")) {
                    Map<String, BEValue> response = map.get("r").getMap();
                    receiveResponse(waiter, response);
                } else {
                    List<BEValue> error = map.get("e").getList();
                    receiveError(waiter, error);
                }
            } else {
                if (_log.shouldLog(Log.WARN))
                    _log.warn("Rcvd msg with no one waiting: " + bev.toString());
            }
        } else {
            if (_log.shouldLog(Log.WARN))
                _log.warn("Unknown msg type rcvd: " + bev.toString());
            throw new InvalidBEncodingException("Unknown type: " + type);
        }
    // success
    /**
     *        } catch (InvalidBEncodingException e) {
     *        } catch (IOException e) {
     *        } catch (ArrayIndexOutOfBoundsException e) {
     *        } catch (IllegalArgumentException e) {
     *        } catch (ClassCastException e) {
     *        } catch (NullPointerException e) {
     **
     */
    } catch (Exception e) {
        if (_log.shouldLog(Log.WARN))
            _log.warn("Receive error for message", e);
    }
}

Example 2 with InvalidBEncodingException

use of org.klomp.snark.bencode.InvalidBEncodingException in project i2p.i2p by i2p.

the class PeerCoordinator method sendPeers.

/**
 *  Send a PEX message to the peer, if he supports PEX.
 *  This just sends everybody we are connected to, we don't
 *  track new vs. old peers yet.
 *  @since 0.8.4
 */
void sendPeers(Peer peer) {
    if (metainfo != null && metainfo.isPrivate())
        return;
    Map<String, BEValue> handshake = peer.getHandshakeMap();
    if (handshake == null)
        return;
    BEValue bev = handshake.get("m");
    if (bev == null)
        return;
    try {
        if (bev.getMap().get(ExtensionHandler.TYPE_PEX) != null) {
            List<Peer> pList = peerList();
            pList.remove(peer);
            if (!pList.isEmpty())
                ExtensionHandler.sendPEX(peer, pList);
        }
    } catch (InvalidBEncodingException ibee) {
    }
}

Example 3 with InvalidBEncodingException

use of org.klomp.snark.bencode.InvalidBEncodingException in project i2p.i2p by i2p.

the class TrackerClient method getPeersFromDHT.

/**
 *  @return max peers seen
 */
private int getPeersFromDHT() {
    // Get peers from DHT
    // FIXME this needs to be in its own thread
    int rv = 0;
    DHT dht = _util.getDHT();
    if (dht != null && (meta == null || !meta.isPrivate()) && (!stop) && (meta == null || _util.getContext().clock().now() > lastDHTAnnounce + MIN_DHT_ANNOUNCE_INTERVAL)) {
        int numwant;
        if (!coordinator.needOutboundPeers())
            numwant = 1;
        else
            numwant = _util.getMaxConnections();
        Collection<Hash> hashes = dht.getPeersAndAnnounce(snark.getInfoHash(), numwant, 5 * 60 * 1000, DHT_ANNOUNCE_PEERS, 3 * 60 * 1000, coordinator.completed(), numwant <= 1);
        if (!hashes.isEmpty()) {
            runStarted = true;
            lastDHTAnnounce = _util.getContext().clock().now();
            rv = hashes.size();
        } else {
            lastDHTAnnounce = 0;
        }
        if (_log.shouldLog(Log.INFO))
            _log.info("Got " + hashes + " from DHT");
        // now try these peers
        if ((!stop) && !hashes.isEmpty()) {
            List<Peer> peers = new ArrayList<Peer>(hashes.size());
            for (Hash h : hashes) {
                try {
                    PeerID pID = new PeerID(h.getData(), _util);
                    peers.add(new Peer(pID, snark.getID(), snark.getInfoHash(), snark.getMetaInfo()));
                } catch (InvalidBEncodingException ibe) {
                }
            }
            Random r = _util.getContext().random();
            Collections.shuffle(peers, r);
            Iterator<Peer> it = peers.iterator();
            while ((!stop) && it.hasNext() && coordinator.needOutboundPeers()) {
                Peer cur = it.next();
                if (coordinator.addPeer(cur) && it.hasNext()) {
                    int delay = r.nextInt(DELAY_RAND) + DELAY_MIN;
                    try {
                        Thread.sleep(delay);
                    } catch (InterruptedException ie) {
                    }
                }
            }
        }
    } else {
        if (_log.shouldLog(Log.INFO))
            _log.info("Not getting DHT peers");
    }
    return rv;
}

Example 4 with InvalidBEncodingException

use of org.klomp.snark.bencode.InvalidBEncodingException in project i2p.i2p by i2p.

the class TrackerInfo method getPeers.

/**
 ****
 *  public static Set<Peer> getPeers(InputStream in, byte[] my_id, MetaInfo metainfo)
 *    throws IOException
 *  {
 *    return getPeers(new BDecoder(in), my_id, metainfo);
 *  }
 *
 *  public static Set<Peer> getPeers(BDecoder be, byte[] my_id, MetaInfo metainfo)
 *    throws IOException
 *  {
 *    return getPeers(be.bdecodeList().getList(), my_id, metainfo);
 *  }
 *****
 */
/**
 * List of Dictionaries or List of Strings
 */
private static Set<Peer> getPeers(List<BEValue> l, byte[] my_id, byte[] infohash, MetaInfo metainfo, I2PSnarkUtil util) throws IOException {
    Set<Peer> peers = new HashSet<Peer>(l.size());
    for (BEValue bev : l) {
        PeerID peerID;
        try {
            // Case 1 - non-compact - A list of dictionaries (maps)
            peerID = new PeerID(bev.getMap());
        } catch (InvalidBEncodingException ibe) {
            try {
                // Case 2 - compact - A list of 32-byte binary strings (hashes)
                // This was just for testing and is not the official format
                peerID = new PeerID(bev.getBytes(), util);
            } catch (InvalidBEncodingException ibe2) {
                // Snark.debug("Discarding peer from list: " + ibe, Snark.ERROR);
                continue;
            }
        }
        peers.add(new Peer(peerID, my_id, infohash, metainfo));
    }
    return peers;
}

Example 5 with InvalidBEncodingException

use of org.klomp.snark.bencode.InvalidBEncodingException in project i2p.i2p by i2p.

the class PeerCoordinator method sendDHT.

/**
 *  Send a DHT message to the peer, if we both support DHT.
 *  @since DHT
 */
void sendDHT(Peer peer) {
    DHT dht = _util.getDHT();
    if (dht == null)
        return;
    Map<String, BEValue> handshake = peer.getHandshakeMap();
    if (handshake == null)
        return;
    BEValue bev = handshake.get("m");
    if (bev == null)
        return;
    try {
        if (bev.getMap().get(ExtensionHandler.TYPE_DHT) != null)
            ExtensionHandler.sendDHT(peer, dht.getPort(), dht.getRPort());
    } catch (InvalidBEncodingException ibee) {
    }
}