Examples with DhtException i2p.bote.network.DhtException used on opensource projects

Example 1 with DhtException

use of i2p.bote.network.DhtException in project i2p.i2p-bote by i2p.

the class KademliaDHT method store.

@Override
public void store(DhtStorablePacket packet) throws DhtException, InterruptedException {
    Hash key = packet.getDhtKey();
    log.info("Looking up nodes to store a " + packet.getClass().getSimpleName() + " with key " + key);
    List<Destination> closeNodes = getClosestNodes(key);
    if (closeNodes.isEmpty())
        throw new DhtException("Cannot store packet because no storage nodes found.");
    // store on local node if appropriate
    if (!closeNodes.contains(localDestination))
        if (closeNodes.size() < KademliaConstants.K || isCloser(localDestination, closeNodes.get(0), key))
            closeNodes.add(localDestination);
    log.info("Storing a " + packet.getClass().getSimpleName() + " with key " + key + " on " + closeNodes.size() + " nodes");
    PacketBatch batch = new PacketBatch();
    for (Destination node : closeNodes) if (localDestination.equals(node))
        storeLocally(packet, null);
    else {
        // use a separate packet id for each request
        StoreRequest storeRequest = new StoreRequest(packet);
        batch.putPacket(storeRequest, node);
    }
    sendQueue.send(batch);
    batch.awaitSendCompletion();
    // TODO awaitAllResponses, repeat if necessary
    sendQueue.remove(batch);
}

Example 2 with DhtException

use of i2p.bote.network.DhtException in project i2p.i2p-bote by i2p.

the class OutboxProcessor method sendToOne.

/**
 * Sends an {@link Email} to one recipient.
 * @param senderIdentity The sender's Email Identity, or <code>null</code> for anonymous emails
 * @param recipient
 * @param email
 * @throws MessagingException
 * @throws DhtException
 * @throws GeneralSecurityException
 * @throws PasswordException
 * @throws InterruptedException
 */
private void sendToOne(EmailIdentity senderIdentity, String recipient, Email email) throws MessagingException, DhtException, GeneralSecurityException, PasswordException, InterruptedException {
    // only used for logging
    String logSuffix = null;
    try {
        logSuffix = "Recipient = '" + recipient + "' Message ID = '" + email.getMessageID() + "'";
        log.info("Sending email: " + logSuffix);
        EmailDestination recipientDest = new EmailDestination(recipient);
        EmailIdentity.IdentityConfig identityConfig;
        if (email.isAnonymous())
            identityConfig = configuration;
        else
            identityConfig = senderIdentity.getWrappedConfig(configuration);
        int hops = identityConfig.getNumStoreHops();
        long minDelay = identityConfig.getRelayMinDelay() * 60 * 1000;
        long maxDelay = identityConfig.getRelayMaxDelay() * 60 * 1000;
        int relayRedundancy = identityConfig.getRelayRedundancy();
        int maxPacketSize = getMaxEmailPacketSize(hops);
        Collection<UnencryptedEmailPacket> emailPackets = email.createEmailPackets(senderIdentity, identities, recipient, maxPacketSize);
        IndexPacket indexPacket = new IndexPacket(recipientDest);
        EmailMetadata metadata = email.getMetadata();
        for (UnencryptedEmailPacket unencryptedPacket : emailPackets) {
            EncryptedEmailPacket emailPacket = new EncryptedEmailPacket(unencryptedPacket, recipientDest);
            send(emailPacket, hops, minDelay, maxDelay, relayRedundancy);
            indexPacket.put(emailPacket);
            metadata.addPacketInfo(recipientDest, emailPacket.getDhtKey(), emailPacket.getDeleteVerificationHash());
        }
        send(indexPacket, hops, minDelay, maxDelay, relayRedundancy);
        outbox.saveMetadata(email);
    } catch (GeneralSecurityException e) {
        log.error("Invalid recipient address. " + logSuffix, e);
        outbox.setStatus(email, new EmailStatus(Status.INVALID_RECIPIENT, recipient));
        throw e;
    } catch (MessagingException e) {
        log.error("Can't create email packets. " + logSuffix, e);
        outbox.setStatus(email, new EmailStatus(Status.ERROR_CREATING_PACKETS, e.getLocalizedMessage()));
        throw e;
    } catch (DhtException e) {
        log.error("Can't store email packet on the DHT. " + logSuffix, e);
        outbox.setStatus(email, new EmailStatus(Status.ERROR_SENDING, e.getLocalizedMessage()));
        throw e;
    } catch (IOException e) {
        log.error("Can't save metadata. " + logSuffix, e);
        outbox.setStatus(email, new EmailStatus(Status.ERROR_SAVING_METADATA, e.getLocalizedMessage()));
    }
}