Examples with SignalProtocolAddress org.whispersystems.libsignal.SignalProtocolAddress used on opensource projects

Example 76 with SignalProtocolAddress

use of org.whispersystems.libsignal.SignalProtocolAddress in project libsignal-service-java by signalapp.

the class SignalServiceCipher method decrypt.

private Plaintext decrypt(SignalServiceEnvelope envelope, byte[] ciphertext) throws InvalidMetadataMessageException, InvalidMetadataVersionException, ProtocolDuplicateMessageException, ProtocolUntrustedIdentityException, ProtocolLegacyMessageException, ProtocolInvalidKeyException, ProtocolInvalidVersionException, ProtocolInvalidMessageException, ProtocolInvalidKeyIdException, ProtocolNoSessionException, SelfSendException {
    try {
        byte[] paddedMessage;
        Metadata metadata;
        int sessionVersion;
        if (!envelope.hasSource() && !envelope.isUnidentifiedSender()) {
            throw new ProtocolInvalidMessageException(new InvalidMessageException("Non-UD envelope is missing a source!"), null, 0);
        }
        if (envelope.isPreKeySignalMessage()) {
            SignalProtocolAddress sourceAddress = getPreferredProtocolAddress(signalProtocolStore, envelope.getSourceAddress(), envelope.getSourceDevice());
            SessionCipher sessionCipher = new SessionCipher(signalProtocolStore, sourceAddress);
            paddedMessage = sessionCipher.decrypt(new PreKeySignalMessage(ciphertext));
            metadata = new Metadata(envelope.getSourceAddress(), envelope.getSourceDevice(), envelope.getTimestamp(), false);
            sessionVersion = sessionCipher.getSessionVersion();
        } else if (envelope.isSignalMessage()) {
            SignalProtocolAddress sourceAddress = getPreferredProtocolAddress(signalProtocolStore, envelope.getSourceAddress(), envelope.getSourceDevice());
            SessionCipher sessionCipher = new SessionCipher(signalProtocolStore, sourceAddress);
            paddedMessage = sessionCipher.decrypt(new SignalMessage(ciphertext));
            metadata = new Metadata(envelope.getSourceAddress(), envelope.getSourceDevice(), envelope.getTimestamp(), false);
            sessionVersion = sessionCipher.getSessionVersion();
        } else if (envelope.isUnidentifiedSender()) {
            SealedSessionCipher sealedSessionCipher = new SealedSessionCipher(signalProtocolStore, localAddress.getUuid().orNull(), localAddress.getNumber().orNull(), 1);
            DecryptionResult result = sealedSessionCipher.decrypt(certificateValidator, ciphertext, envelope.getServerTimestamp());
            SignalServiceAddress resultAddress = new SignalServiceAddress(UuidUtil.parse(result.getSenderUuid().orNull()), result.getSenderE164());
            SignalProtocolAddress protocolAddress = getPreferredProtocolAddress(signalProtocolStore, resultAddress, result.getDeviceId());
            paddedMessage = result.getPaddedMessage();
            metadata = new Metadata(resultAddress, result.getDeviceId(), envelope.getTimestamp(), true);
            sessionVersion = sealedSessionCipher.getSessionVersion(protocolAddress);
        } else {
            throw new InvalidMetadataMessageException("Unknown type: " + envelope.getType());
        }
        PushTransportDetails transportDetails = new PushTransportDetails(sessionVersion);
        byte[] data = transportDetails.getStrippedPaddingMessageBody(paddedMessage);
        return new Plaintext(metadata, data);
    } catch (DuplicateMessageException e) {
        throw new ProtocolDuplicateMessageException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    } catch (LegacyMessageException e) {
        throw new ProtocolLegacyMessageException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    } catch (InvalidMessageException e) {
        throw new ProtocolInvalidMessageException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    } catch (InvalidKeyIdException e) {
        throw new ProtocolInvalidKeyIdException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    } catch (InvalidKeyException e) {
        throw new ProtocolInvalidKeyException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    } catch (UntrustedIdentityException e) {
        throw new ProtocolUntrustedIdentityException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    } catch (InvalidVersionException e) {
        throw new ProtocolInvalidVersionException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    } catch (NoSessionException e) {
        throw new ProtocolNoSessionException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    }
}

Example 77 with SignalProtocolAddress

use of org.whispersystems.libsignal.SignalProtocolAddress in project libsignal-service-java by signalapp.

the class SignalServiceMessageSender method handleMismatchedDevices.

private void handleMismatchedDevices(PushServiceSocket socket, SignalServiceAddress recipient, MismatchedDevices mismatchedDevices) throws IOException, UntrustedIdentityException {
    try {
        for (int extraDeviceId : mismatchedDevices.getExtraDevices()) {
            if (recipient.getUuid().isPresent()) {
                store.deleteSession(new SignalProtocolAddress(recipient.getUuid().get().toString(), extraDeviceId));
            }
            if (recipient.getNumber().isPresent()) {
                store.deleteSession(new SignalProtocolAddress(recipient.getNumber().get(), extraDeviceId));
            }
        }
        for (int missingDeviceId : mismatchedDevices.getMissingDevices()) {
            PreKeyBundle preKey = socket.getPreKey(recipient, missingDeviceId);
            try {
                SessionBuilder sessionBuilder = new SessionBuilder(store, new SignalProtocolAddress(recipient.getIdentifier(), missingDeviceId));
                sessionBuilder.process(preKey);
            } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
                throw new UntrustedIdentityException("Untrusted identity key!", recipient.getIdentifier(), preKey.getIdentityKey());
            }
        }
    } catch (InvalidKeyException e) {
        throw new IOException(e);
    }
}