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

Example 56 with DataFormatException

use of net.i2p.data.DataFormatException in project i2p.i2p-bote by i2p.

the class IndexPacket method toByteArray.

@Override
public byte[] toByteArray() {
    ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
    DataOutputStream dataStream = new DataOutputStream(byteStream);
    try {
        writeHeader(dataStream);
        destinationHash.writeBytes(dataStream);
        dataStream.writeInt(entries.size());
        for (IndexPacketEntry entry : entries) {
            dataStream.write(entry.emailPacketKey.toByteArray());
            dataStream.write(entry.delVerificationHash.toByteArray());
            // store as seconds
            dataStream.writeInt((int) (entry.storeTime / 1000L));
        }
    } catch (IOException e) {
        log.error("Can't write to ByteArrayOutputStream/DataOutputStream.", e);
    } catch (DataFormatException e) {
        log.error("Can't write destination hash to output stream: " + destinationHash, e);
    }
    return byteStream.toByteArray();
}

Example 57 with DataFormatException

use of net.i2p.data.DataFormatException in project i2p.i2p-bote by i2p.

the class I2PPacketDispatcher method messageAvailable.

@Override
public void messageAvailable(I2PSession session, int msgId, long size) {
    byte[] msg = new byte[0];
    try {
        msg = session.receiveMessage(msgId);
    } catch (I2PSessionException e) {
        log.error("Can't get new message from I2PSession.", e);
    }
    if (msg == null) {
        log.error("I2PSession returned a null message: msgId=" + msgId + ", size=" + size + ", " + session);
        return;
    }
    I2PDatagramDissector datagramDissector = new I2PDatagramDissector();
    try {
        datagramDissector.loadI2PDatagram(msg);
        // TODO keep this line or remove it?
        datagramDissector.verifySignature();
        byte[] payload = datagramDissector.extractPayload();
        Destination sender = datagramDissector.getSender();
        dispatchPacket(payload, sender);
    } catch (DataFormatException e) {
        log.error("Invalid datagram received.", e);
    } catch (I2PInvalidDatagramException e) {
        log.error("Datagram failed verification.", e);
    } catch (Exception e) {
        log.error("Error processing datagram.", e);
    }
}

Example 58 with DataFormatException

use of net.i2p.data.DataFormatException in project i2p.i2p-bote by i2p.

the class RelayPacketHandler method packetReceived.

@Override
public void packetReceived(CommunicationPacket packet, Destination sender, long receiveTime) {
    if (packet instanceof RelayRequest && dht.isReady()) {
        RelayRequest relayRequest = (RelayRequest) packet;
        CommunicationPacket payload;
        try {
            payload = relayRequest.getStoredPacket(i2pSession);
        } catch (DataFormatException e) {
            log.error("Invalid RelayRequest received from peer " + Util.toBase32(sender), e);
            return;
        } catch (MalformedPacketException e) {
            log.error("Invalid RelayRequest received from peer " + Util.toBase32(sender), e);
            return;
        }
        log.debug("Received a relay request, payload: " + payload);
        if (payload instanceof RelayRequest) {
            log.debug("Relay packet is of type " + payload.getClass().getSimpleName() + ", storing it in the relay packet folder.");
            relayPacketFolder.add((RelayRequest) payload);
            confirm(sender, relayRequest);
        } else if (payload instanceof StoreRequest) {
            log.debug("Relay packet is of type " + payload.getClass().getSimpleName() + ", storing it in the DHT.");
            final DhtStorablePacket dhtPacket = ((StoreRequest) payload).getPacketToStore();
            // do dht.store() in a separate thread so we don't block the notifier thread
            dhtTaskExecutor.submit(new Runnable() {

                @Override
                public void run() {
                    try {
                        dht.store(dhtPacket);
                        log.debug("Finished storing DHT packet: " + dhtPacket);
                    } catch (InterruptedException e) {
                        log.debug("Interrupted while storing packet in the DHT.");
                    } catch (DhtException e) {
                        log.error("Error storing packet in the DHT: " + dhtPacket, e);
                    }
                }
            });
            confirm(sender, relayRequest);
        } else
            log.error("Don't know how to handle relay packet of type " + payload.getClass());
    }
}

Example 59 with DataFormatException

use of net.i2p.data.DataFormatException in project i2p.i2p-bote by i2p.

the class SeedlessAnnounce method doSeedlessAnnounce.

private synchronized void doSeedlessAnnounce() {
    List<String> seedlessServers = seedlessScrapeServers.getSeedlessServers();
    if (seedlessServers.isEmpty()) {
        // try again in a minute.
        log.error("SeedlessServers.isEmpty, will retry shortly.");
        lastSeedlessAnnounce = System.currentTimeMillis() - (interval - TimeUnit.MINUTES.toMillis(1));
        return;
    }
    // Announce to 10 servers.
    // We do this over the i2pSocket.
    int successful = Math.min(10, seedlessServers.size());
    log.debug("Try to announce to " + successful + " Seedless Servers");
    Collections.shuffle(seedlessServers, new Random());
    Iterator<String> it = seedlessServers.iterator();
    String line;
    I2PSocket I2P;
    InputStream Iin;
    OutputStream Iout;
    BufferedReader data;
    Boolean didsomething = false;
    BufferedWriter output;
    while (successful > 0 && it.hasNext()) {
        lastSeedlessAnnounce = System.currentTimeMillis();
        String b32 = it.next();
        Destination dest = null;
        I2P = null;
        try {
            lastSeedlessAnnounce = System.currentTimeMillis();
            // deprecated dest = I2PTunnel.destFromName(b32);
            dest = I2PAppContext.getGlobalContext().namingService().lookup(b32);
            lastSeedlessAnnounce = System.currentTimeMillis();
            if (dest == null) {
                log.debug("Could not find the destination: <" + b32 + ">");
                continue;
            }
            line = dest.toBase64();
            dest = new Destination();
            dest.fromBase64(line);
            I2P = socketManager.connect(dest);
            // I2P.setReadTimeout(0); // temp bugfix, this *SHOULD* be the default
            // make readers/writers
            Iin = I2P.getInputStream();
            Iout = I2P.getOutputStream();
            output = new BufferedWriter(new OutputStreamWriter(Iout));
            output.write(announceString);
            output.flush();
            data = new BufferedReader(new InputStreamReader(Iin));
            // Check for success.
            line = data.readLine();
            if (line != null) {
                if (line.contains(" 200 ")) {
                    log.debug("Announced to " + b32);
                    successful--;
                    didsomething = true;
                } else {
                    log.debug("Announce to " + b32 + " Failed with Error " + line);
                    log.debug("We sent " + announceString);
                }
            }
            while ((line = data.readLine()) != null) {
            }
        } catch (DataFormatException ex) {
            log.debug("Not base64!", ex);
        } catch (ConnectException ex) {
            log.debug("ConnectException", ex);
        } catch (NoRouteToHostException ex) {
            log.debug("NoRouteToHostException", ex);
        } catch (InterruptedIOException ex) {
            log.debug("InterruptedIOException", ex);
        } catch (IOException ex) {
            log.debug("IOException", ex);
            ex.printStackTrace();
        } catch (I2PException ex) {
            log.debug("I2PException", ex);
        }
        if (I2P != null) {
            try {
                I2P.close();
            } catch (IOException ex) {
            // don't care.
            }
        }
    }
    if (!didsomething) {
        // try again in 1 minute.
        lastSeedlessAnnounce = System.currentTimeMillis() - (interval - TimeUnit.MINUTES.toMillis(1));
        return;
    }
    lastSeedlessAnnounce = System.currentTimeMillis();
}

Example 60 with DataFormatException

use of net.i2p.data.DataFormatException in project i2p.i2p-bote by i2p.

the class ElGamal2048_DSA1024 method createPublicKeyPair.

@Override
public PublicKeyPair createPublicKeyPair(String base64) throws GeneralSecurityException {
    Destination i2pDestination;
    // add a null certificate
    base64 += "AAAA";
    try {
        i2pDestination = new Destination(base64);
    } catch (DataFormatException e) {
        throw new KeyException("Can't create I2P destination from Base64: <" + base64 + ">", e);
    }
    PublicKeyPair keyPair = new PublicKeyPair();
    keyPair.encryptionKey = new ElGamalPublicKey(i2pDestination.getPublicKey());
    keyPair.signingKey = new DSAPublicKey(i2pDestination.getSigningPublicKey());
    return keyPair;
}