Examples with UndecidedOmemoIdentityException org.jivesoftware.smackx.omemo.exceptions.UndecidedOmemoIdentityException used on opensource projects

Example 1 with UndecidedOmemoIdentityException

use of org.jivesoftware.smackx.omemo.exceptions.UndecidedOmemoIdentityException in project Smack by igniterealtime.

the class OmemoExceptionsTest method undecidedOmemoIdentityExceptionTest.

@Test
public void undecidedOmemoIdentityExceptionTest() throws XmppStringprepException {
    OmemoDevice alice = new OmemoDevice(JidCreate.bareFrom("alice@server.tld"), 1234);
    OmemoDevice bob = new OmemoDevice(JidCreate.bareFrom("bob@server.tld"), 5678);
    OmemoDevice mallory = new OmemoDevice(JidCreate.bareFrom("mallory@server.tld"), 9876);
    UndecidedOmemoIdentityException u = new UndecidedOmemoIdentityException(alice);
    assertTrue(u.getUndecidedDevices().contains(alice));
    assertTrue(u.getUndecidedDevices().size() == 1);
    UndecidedOmemoIdentityException v = new UndecidedOmemoIdentityException(bob);
    v.getUndecidedDevices().add(mallory);
    assertTrue(v.getUndecidedDevices().size() == 2);
    assertTrue(v.getUndecidedDevices().contains(bob));
    assertTrue(v.getUndecidedDevices().contains(mallory));
    u.getUndecidedDevices().add(bob);
    u.join(v);
    assertTrue(u.getUndecidedDevices().size() == 3);
}

Example 2 with UndecidedOmemoIdentityException

use of org.jivesoftware.smackx.omemo.exceptions.UndecidedOmemoIdentityException in project Smack by igniterealtime.

the class OmemoMessageBuilder method addRecipient.

/**
 * Add a new recipient device to the message.
 *
 * @param contactsDevice device of the recipient
 *
 * @throws NoIdentityKeyException if we have no identityKey of that device. Can be fixed by fetching and
 *                                processing the devices bundle.
 * @throws CorruptedOmemoKeyException if the identityKey of that device is corrupted.
 * @throws UndecidedOmemoIdentityException if the user hasn't yet decided whether to trust that device or not.
 * @throws UntrustedOmemoIdentityException if the user has decided not to trust that device.
 * @throws IOException if an I/O error occurred.
 */
public void addRecipient(OmemoDevice contactsDevice) throws NoIdentityKeyException, CorruptedOmemoKeyException, UndecidedOmemoIdentityException, UntrustedOmemoIdentityException, IOException {
    OmemoFingerprint fingerprint;
    fingerprint = OmemoService.getInstance().getOmemoStoreBackend().getFingerprint(userDevice, contactsDevice);
    switch(trustCallback.getTrust(contactsDevice, fingerprint)) {
        case undecided:
            throw new UndecidedOmemoIdentityException(contactsDevice);
        case trusted:
            CiphertextTuple encryptedKey = ratchet.doubleRatchetEncrypt(contactsDevice, messageKey);
            keys.add(new OmemoKeyElement(encryptedKey.getCiphertext(), contactsDevice.getDeviceId(), encryptedKey.isPreKeyMessage()));
            break;
        case untrusted:
            throw new UntrustedOmemoIdentityException(contactsDevice, fingerprint);
    }
}

Example 3 with UndecidedOmemoIdentityException

use of org.jivesoftware.smackx.omemo.exceptions.UndecidedOmemoIdentityException in project Smack by igniterealtime.

the class OmemoService method createRatchetUpdateElement.

/**
 * Create an empty OMEMO message, which is used to forward the ratchet of the recipient.
 * This message type is typically used to create stable sessions.
 * Note that trust decisions are ignored for the creation of this message.
 *
 * @param managerGuard Logged in OmemoManager
 * @param contactsDevice OmemoDevice of the contact
 * @return ratchet update message
 *
 * @throws NoSuchAlgorithmException if AES algorithms are not supported on this system.
 * @throws InterruptedException if the calling thread was interrupted.
 * @throws SmackException.NoResponseException if there was no response from the remote entity.
 * @throws CorruptedOmemoKeyException if our IdentityKeyPair is corrupted.
 * @throws SmackException.NotConnectedException if the XMPP connection is not connected.
 * @throws CannotEstablishOmemoSessionException if session negotiation fails.
 * @throws IOException if an I/O error occurred.
 */
OmemoElement createRatchetUpdateElement(OmemoManager.LoggedInOmemoManager managerGuard, OmemoDevice contactsDevice) throws InterruptedException, SmackException.NoResponseException, CorruptedOmemoKeyException, SmackException.NotConnectedException, CannotEstablishOmemoSessionException, NoSuchAlgorithmException, CryptoFailedException, IOException {
    OmemoManager manager = managerGuard.get();
    OmemoDevice userDevice = manager.getOwnDevice();
    if (contactsDevice.equals(userDevice)) {
        throw new IllegalArgumentException("\"Thou shall not update thy own ratchet!\" - William Shakespeare");
    }
    // Establish session if necessary
    if (!hasSession(userDevice, contactsDevice)) {
        buildFreshSessionWithDevice(manager.getConnection(), userDevice, contactsDevice);
    }
    // Generate fresh AES key and IV
    byte[] messageKey = OmemoMessageBuilder.generateKey(KEYTYPE, KEYLENGTH);
    byte[] iv = OmemoMessageBuilder.generateIv();
    // Create message builder
    OmemoMessageBuilder<T_IdKeyPair, T_IdKey, T_PreKey, T_SigPreKey, T_Sess, T_Addr, T_ECPub, T_Bundle, T_Ciph> builder;
    try {
        builder = new OmemoMessageBuilder<>(userDevice, gullibleTrustCallback, getOmemoRatchet(manager), messageKey, iv, null);
    } catch (InvalidKeyException | InvalidAlgorithmParameterException | NoSuchPaddingException | BadPaddingException | IllegalBlockSizeException e) {
        throw new CryptoFailedException(e);
    }
    // Add recipient
    try {
        builder.addRecipient(contactsDevice);
    } catch (UndecidedOmemoIdentityException | UntrustedOmemoIdentityException e) {
        throw new AssertionError("Gullible Trust Callback reported undecided or untrusted device, " + "even though it MUST NOT do that.");
    } catch (NoIdentityKeyException e) {
        throw new AssertionError("We MUST have an identityKey for " + contactsDevice + " since we built a session." + e);
    }
    return builder.finish();
}

Example 4 with UndecidedOmemoIdentityException

use of org.jivesoftware.smackx.omemo.exceptions.UndecidedOmemoIdentityException in project Smack by igniterealtime.

the class OmemoService method encrypt.

/**
 * Encrypt a message with a messageKey and an IV and create an OmemoMessage from it.
 *
 * @param managerGuard authenticated OmemoManager
 * @param contactsDevices set of recipient OmemoDevices
 * @param messageKey AES key to encrypt the message
 * @param iv iv to be used with the messageKey
 * @return OmemoMessage object which contains the OmemoElement and some information.
 *
 * @throws SmackException.NotConnectedException if the XMPP connection is not connected.
 * @throws InterruptedException if the calling thread was interrupted.
 * @throws SmackException.NoResponseException if there was no response from the remote entity.
 * @throws UndecidedOmemoIdentityException if the list of recipient devices contains undecided devices
 * @throws CryptoFailedException if we are lacking some crypto primitives
 * @throws IOException if an I/O error occurred.
 */
private OmemoMessage.Sent encrypt(OmemoManager.LoggedInOmemoManager managerGuard, Set<OmemoDevice> contactsDevices, byte[] messageKey, byte[] iv, String message) throws SmackException.NotConnectedException, InterruptedException, SmackException.NoResponseException, UndecidedOmemoIdentityException, CryptoFailedException, IOException {
    OmemoManager manager = managerGuard.get();
    OmemoDevice userDevice = manager.getOwnDevice();
    // Do not encrypt for our own device.
    removeOurDevice(userDevice, contactsDevices);
    buildMissingSessionsWithDevices(manager.getConnection(), userDevice, contactsDevices);
    Set<OmemoDevice> undecidedDevices = getUndecidedDevices(userDevice, manager.getTrustCallback(), contactsDevices);
    if (!undecidedDevices.isEmpty()) {
        throw new UndecidedOmemoIdentityException(undecidedDevices);
    }
    // Keep track of skipped devices
    HashMap<OmemoDevice, Throwable> skippedRecipients = new HashMap<>();
    OmemoMessageBuilder<T_IdKeyPair, T_IdKey, T_PreKey, T_SigPreKey, T_Sess, T_Addr, T_ECPub, T_Bundle, T_Ciph> builder;
    try {
        builder = new OmemoMessageBuilder<>(userDevice, manager.getTrustCallback(), getOmemoRatchet(managerGuard.get()), messageKey, iv, message);
    } catch (BadPaddingException | IllegalBlockSizeException | NoSuchPaddingException | InvalidAlgorithmParameterException | InvalidKeyException | NoSuchAlgorithmException e) {
        throw new CryptoFailedException(e);
    }
    for (OmemoDevice contactsDevice : contactsDevices) {
        // Build missing sessions
        if (!hasSession(userDevice, contactsDevice)) {
            try {
                buildFreshSessionWithDevice(manager.getConnection(), userDevice, contactsDevice);
            } catch (CorruptedOmemoKeyException | CannotEstablishOmemoSessionException e) {
                LOGGER.log(Level.WARNING, "Could not build session with " + contactsDevice + ".", e);
                skippedRecipients.put(contactsDevice, e);
                continue;
            }
        }
        int messageCounter = omemoStore.loadOmemoMessageCounter(userDevice, contactsDevice);
        // Ignore read-only devices
        if (OmemoConfiguration.getIgnoreReadOnlyDevices()) {
            boolean readOnly = messageCounter >= OmemoConfiguration.getMaxReadOnlyMessageCount();
            if (readOnly) {
                LOGGER.log(Level.FINE, "Device " + contactsDevice + " seems to be read-only (We sent " + messageCounter + " messages without getting a reply back (max allowed is " + OmemoConfiguration.getMaxReadOnlyMessageCount() + "). Ignoring the device.");
                skippedRecipients.put(contactsDevice, new ReadOnlyDeviceException(contactsDevice));
                // Skip this device and handle next device
                continue;
            }
        }
        // Add recipients
        try {
            builder.addRecipient(contactsDevice);
        } catch (NoIdentityKeyException | CorruptedOmemoKeyException e) {
            LOGGER.log(Level.WARNING, "Encryption failed for device " + contactsDevice + ".", e);
            skippedRecipients.put(contactsDevice, e);
        } catch (UndecidedOmemoIdentityException e) {
            throw new AssertionError("Recipients device seems to be undecided, even though we should have thrown" + " an exception earlier in that case. " + e);
        } catch (UntrustedOmemoIdentityException e) {
            LOGGER.log(Level.WARNING, "Device " + contactsDevice + " is untrusted. Message is not encrypted for it.");
            skippedRecipients.put(contactsDevice, e);
        }
        // Increment the message counter of the device
        omemoStore.storeOmemoMessageCounter(userDevice, contactsDevice, messageCounter + 1);
    }
    OmemoElement element = builder.finish();
    return new OmemoMessage.Sent(element, messageKey, iv, contactsDevices, skippedRecipients);
}

Example 5 with UndecidedOmemoIdentityException

use of org.jivesoftware.smackx.omemo.exceptions.UndecidedOmemoIdentityException in project Smack by igniterealtime.

the class OmemoClient method handleInput.

public void handleInput(String input) throws NotConnectedException, NotLoggedInException, InterruptedException, IOException {
    String[] com = input.split(" ", 3);
    switch(com[0]) {
        case "/omemo":
            if (com.length < 3) {
                print("Usage: /omemo <contact-jid> <message>");
                return;
            }
            BareJid recipient = JidCreate.bareFrom(com[1]);
            String body = com[2];
            MessageBuilder messageBuilder = connection.getStanzaFactory().buildMessageStanza();
            try {
                Message omemoMessage = omemoManager.encrypt(recipient, body).buildMessage(messageBuilder, recipient);
                connection.sendStanza(omemoMessage);
            } catch (UndecidedOmemoIdentityException e) {
                print("Undecided Identities!\n" + Arrays.toString(e.getUndecidedDevices().toArray()));
            } catch (CryptoFailedException | SmackException.NoResponseException e) {
                LOGGER.log(Level.SEVERE, "Unexpected Exception", e);
            }
            break;
        case "/trust":
            print("Trust");
            if (com.length != 2) {
                print("Usage: /trust <contact-jid>");
            }
            BareJid contact = JidCreate.bareFrom(com[1]);
            HashMap<OmemoDevice, OmemoFingerprint> devices;
            try {
                devices = omemoManager.getActiveFingerprints(contact);
            } catch (CorruptedOmemoKeyException | CannotEstablishOmemoSessionException | SmackException.NoResponseException e) {
                LOGGER.log(Level.SEVERE, "Unexpected Exception", e);
                return;
            }
            for (OmemoDevice d : devices.keySet()) {
                print("Trust (1) or distrust (2)?\n" + devices.get(d).blocksOf8Chars());
                if (Integer.parseInt(scanner.nextLine()) == 1) {
                    omemoManager.trustOmemoIdentity(d, devices.get(d));
                } else {
                    omemoManager.distrustOmemoIdentity(d, devices.get(d));
                }
            }
            print("Done.");
            break;
        case "/purge":
            try {
                omemoManager.purgeDeviceList();
                print("Purged.");
            } catch (XMPPException.XMPPErrorException | SmackException.NoResponseException | PubSubException.NotALeafNodeException e) {
                LOGGER.log(Level.SEVERE, "Unexpected Exception", e);
            }
    }
}