Examples with InvalidMessageIdException com.github.dedis.popstellar.utility.error.InvalidMessageIdException used on opensource projects

Example 1 with InvalidMessageIdException

use of com.github.dedis.popstellar.utility.error.InvalidMessageIdException in project popstellar by dedis.

the class LaoHandler method handleStateLao.

/**
 * Process a StateLao message.
 *
 * @param context the HandlerContext of the message
 * @param stateLao the message that was received
 */
public static void handleStateLao(HandlerContext context, StateLao stateLao) throws DataHandlingException {
    LAORepository laoRepository = context.getLaoRepository();
    Channel channel = context.getChannel();
    Log.d(TAG, "Receive State Lao Broadcast msg=" + stateLao);
    Lao lao = laoRepository.getLaoByChannel(channel);
    Log.d(TAG, "Receive State Lao Broadcast " + stateLao.getName());
    if (!laoRepository.getMessageById().containsKey(stateLao.getModificationId())) {
        Log.d(TAG, "Can't find modification id : " + stateLao.getModificationId());
        // queue it if we haven't received the update message yet
        throw new InvalidMessageIdException(stateLao, stateLao.getModificationId());
    }
    Log.d(TAG, "Verifying signatures");
    for (PublicKeySignaturePair pair : stateLao.getModificationSignatures()) {
        if (!pair.getWitness().verify(pair.getSignature(), stateLao.getModificationId())) {
            throw new InvalidSignatureException(stateLao, pair.getSignature());
        }
    }
    Log.d(TAG, "Success to verify state lao signatures");
    // TODO: verify if lao/state_lao is consistent with the lao/update message
    lao.setId(stateLao.getId());
    lao.setWitnesses(stateLao.getWitnesses());
    lao.setName(stateLao.getName());
    lao.setLastModified(stateLao.getLastModified());
    lao.setModificationId(stateLao.getModificationId());
    PublicKey publicKey = context.getKeyManager().getMainPublicKey();
    if (lao.getOrganizer().equals(publicKey) || lao.getWitnesses().contains(publicKey)) {
        context.getMessageSender().subscribe(lao.getChannel().subChannel("consensus")).subscribe();
    }
    // Now we're going to remove all pending updates which came prior to this state lao
    long targetTime = stateLao.getLastModified();
    lao.getPendingUpdates().removeIf(pendingUpdate -> pendingUpdate.getModificationTime() <= targetTime);
    laoRepository.updateNodes(channel);
}

Example 2 with InvalidMessageIdException

use of com.github.dedis.popstellar.utility.error.InvalidMessageIdException in project popstellar by dedis.

the class ConsensusHandler method handleElectAccept.

public static void handleElectAccept(HandlerContext context, ConsensusElectAccept consensusElectAccept) throws DataHandlingException {
    LAORepository laoRepository = context.getLaoRepository();
    Channel channel = context.getChannel();
    MessageID messageId = context.getMessageId();
    PublicKey senderPk = context.getSenderPk();
    Lao lao = laoRepository.getLaoByChannel(channel);
    Optional<ElectInstance> electInstanceOpt = lao.getElectInstance(consensusElectAccept.getMessageId());
    if (!electInstanceOpt.isPresent()) {
        Log.w(TAG, "elect_accept for invalid messageId : " + consensusElectAccept.getMessageId());
        throw new InvalidMessageIdException(consensusElectAccept, consensusElectAccept.getMessageId());
    }
    ElectInstance electInstance = electInstanceOpt.get();
    electInstance.addElectAccept(senderPk, messageId, consensusElectAccept);
    lao.updateElectInstance(electInstance);
    laoRepository.updateNodes(lao.getChannel());
}

Example 3 with InvalidMessageIdException

use of com.github.dedis.popstellar.utility.error.InvalidMessageIdException in project popstellar by dedis.

the class ConsensusHandler method handleConsensusFailure.

public static void handleConsensusFailure(HandlerContext context, ConsensusFailure failure) throws InvalidMessageIdException {
    LAORepository laoRepository = context.getLaoRepository();
    Channel channel = context.getChannel();
    Lao lao = laoRepository.getLaoByChannel(channel);
    Optional<ElectInstance> electInstanceOpt = lao.getElectInstance(failure.getMessageId());
    if (!electInstanceOpt.isPresent()) {
        Log.w(TAG, "Failure for invalid messageId : " + failure.getMessageId());
        throw new InvalidMessageIdException(failure, failure.getMessageId());
    }
    ElectInstance electInstance = electInstanceOpt.get();
    electInstance.setState(ElectInstance.State.FAILED);
    lao.updateElectInstance(electInstance);
    laoRepository.updateNodes(lao.getChannel());
}

Example 4 with InvalidMessageIdException

use of com.github.dedis.popstellar.utility.error.InvalidMessageIdException in project popstellar by dedis.

the class ConsensusHandler method handleLearn.

public static void handleLearn(HandlerContext context, ConsensusLearn consensusLearn) throws DataHandlingException {
    LAORepository laoRepository = context.getLaoRepository();
    Channel channel = context.getChannel();
    Lao lao = laoRepository.getLaoByChannel(channel);
    Optional<ElectInstance> electInstanceOpt = lao.getElectInstance(consensusLearn.getMessageId());
    if (!electInstanceOpt.isPresent()) {
        Log.w(TAG, "learn for invalid messageId : " + consensusLearn.getMessageId());
        throw new InvalidMessageIdException(consensusLearn, consensusLearn.getMessageId());
    }
    ElectInstance electInstance = electInstanceOpt.get();
    if (consensusLearn.getLearnValue().isDecision()) {
        electInstance.setState(ElectInstance.State.ACCEPTED);
    }
    lao.updateElectInstance(electInstance);
    laoRepository.updateNodes(lao.getChannel());
}

Example 5 with InvalidMessageIdException

use of com.github.dedis.popstellar.utility.error.InvalidMessageIdException in project popstellar by dedis.

the class ChirpHandler method handleDeleteChirp.

/**
 * process a DeleteChirp message.
 *
 * @param context the HandlerContext of the message
 * @param deleteChirp the data of the message that was received
 */
public static void handleDeleteChirp(HandlerContext context, DeleteChirp deleteChirp) throws DataHandlingException {
    LAORepository laoRepository = context.getLaoRepository();
    Channel channel = context.getChannel();
    Lao lao = laoRepository.getLaoByChannel(channel);
    Optional<Chirp> chirpOptional = lao.getChirp(deleteChirp.getChirpId());
    Chirp chirp;
    if (!chirpOptional.isPresent()) {
        throw new InvalidMessageIdException(deleteChirp, deleteChirp.getChirpId());
    }
    chirp = chirpOptional.get();
    if (chirp.getIsDeleted()) {
        Log.d(TAG, "The chirp is already deleted");
    } else {
        chirp.setIsDeleted(true);
        chirp.setText("");
    }
}