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

Example 1 with Payload

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

the class I2CPMessageProducer method createPayload.

/**
 * Create a new signed payload and send it off to the destination
 *
 * @param tag unused - no end-to-end crypto
 * @param tags unused - no end-to-end crypto
 * @param key unused - no end-to-end crypto
 * @param newKey unused - no end-to-end crypto
 */
private Payload createPayload(Destination dest, byte[] payload, SessionTag tag, SessionKey key, Set<SessionTag> tags, SessionKey newKey) throws I2PSessionException {
    if (dest == null)
        throw new I2PSessionException("No destination specified");
    if (payload == null)
        throw new I2PSessionException("No payload specified");
    Payload data = new Payload();
    if (!END_TO_END_CRYPTO) {
        data.setEncryptedData(payload);
        return data;
    }
    // no padding at this level
    // the garlic may pad, and the tunnels may pad, and the transports may pad
    int size = payload.length;
    byte[] encr = _context.elGamalAESEngine().encrypt(payload, dest.getPublicKey(), key, tags, tag, newKey, size);
    // yes, in an intelligent component, newTags would be queued for confirmation along with key, and
    // generateNewTags would only generate tags if necessary
    data.setEncryptedData(encr);
    // + data.calculateHash());
    return data;
}

Example 2 with Payload

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

the class I2CPMessageProducer method sendMessage.

/**
 * Package up and send the payload to the router for delivery
 *
 * @param nonce 0 to 0xffffffff; if 0, the router will not reply with a MessageStatusMessage
 * @since 0.9.2
 */
public void sendMessage(I2PSessionImpl session, Destination dest, long nonce, byte[] payload, SendMessageOptions options) throws I2PSessionException {
    long expires = options.getTime();
    if (!updateBps(payload.length, expires))
        // drop the message... send fail notification?
        return;
    SendMessageMessage msg = new SendMessageExpiresMessage(options);
    msg.setDestination(dest);
    SessionId sid = session.getSessionId();
    if (sid == null) {
        _log.error(session.toString() + " send message w/o session", new Exception());
        return;
    }
    msg.setSessionId(sid);
    msg.setNonce(nonce);
    Payload data = createPayload(dest, payload, null, null, null, null);
    msg.setPayload(data);
    session.sendMessage(msg);
}

Example 3 with Payload

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

the class MessagePayloadMessage method doReadMessage.

@Override
protected void doReadMessage(InputStream in, int size) throws I2CPMessageException, IOException {
    try {
        _sessionId = (int) DataHelper.readLong(in, 2);
        _messageId = DataHelper.readLong(in, 4);
        _payload = new Payload();
        _payload.readBytes(in);
    } catch (DataFormatException dfe) {
        throw new I2CPMessageException("Unable to load the message data", dfe);
    }
}

Example 4 with Payload

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

the class ClientConnectionRunner method distributeMessage.

/**
 * Distribute the message.  If the dest is local, it blocks until its passed
 * to the target ClientConnectionRunner (which then fires it into a MessageReceivedJob).
 * If the dest is remote, it blocks until it is added into the ClientMessagePool
 */
MessageId distributeMessage(SendMessageMessage message) {
    Payload payload = message.getPayload();
    Destination dest = message.getDestination();
    MessageId id = new MessageId();
    id.setMessageId(getNextMessageId());
    long expiration = 0;
    int flags = 0;
    if (message.getType() == SendMessageExpiresMessage.MESSAGE_TYPE) {
        SendMessageExpiresMessage msg = (SendMessageExpiresMessage) message;
        expiration = msg.getExpirationTime();
        flags = msg.getFlags();
    }
    if ((!_dontSendMSM) && message.getNonce() != 0)
        _acceptedPending.add(id);
    if (_log.shouldLog(Log.DEBUG))
        _log.debug("** Receiving message " + id.getMessageId() + " with payload of size " + payload.getSize() + " for session " + message.getSessionId());
    // long beforeDistribute = _context.clock().now();
    // the following blocks as described above
    Destination fromDest = getDestination(message.getSessionId());
    if (fromDest != null)
        _manager.distributeMessage(fromDest, dest, payload, id, message.getNonce(), expiration, flags);
    // + timeToDistribute);
    return id;
}

Example 5 with Payload

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

the class ClientMessageEventListener method handleReceiveBegin.

/**
 * The client asked for a message, so we send it to them.
 *
 * This is only when not in fast receive mode.
 * In the default fast receive mode, data is sent in MessageReceivedJob.
 */
private void handleReceiveBegin(ReceiveMessageBeginMessage message) {
    if (_runner.isDead())
        return;
    if (_log.shouldLog(Log.DEBUG))
        _log.debug("Handling receive begin: id = " + message.getMessageId());
    MessagePayloadMessage msg = new MessagePayloadMessage();
    msg.setMessageId(message.getMessageId());
    // TODO validate session id
    msg.setSessionId(message.getSessionId());
    Payload payload = _runner.getPayload(new MessageId(message.getMessageId()));
    if (payload == null) {
        if (_log.shouldLog(Log.WARN))
            _log.warn("Payload for message id [" + message.getMessageId() + "] is null!  Dropped or Unknown message id");
        return;
    }
    msg.setPayload(payload);
    try {
        _runner.doSend(msg);
    } catch (I2CPMessageException ime) {
        String emsg = "Error sending data to client " + _runner.getDestHash();
        if (_log.shouldWarn())
            _log.warn(emsg, ime);
        else
            _log.logAlways(Log.WARN, emsg);
        _runner.removePayload(new MessageId(message.getMessageId()));
    }
}