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Example 1 with PreKeyRecord

use of org.whispersystems.libaxolotl.state.PreKeyRecord in project Conversations by siacs.

the class AxolotlService method publishBundlesIfNeeded.

public void publishBundlesIfNeeded(final boolean announce, final boolean wipe) {
    if (pepBroken) {
        Log.d(Config.LOGTAG, getLogprefix(account) + "publishBundlesIfNeeded called, but PEP is broken. Ignoring... ");
        return;
    }
    IqPacket packet = mXmppConnectionService.getIqGenerator().retrieveBundlesForDevice(account.getJid().toBareJid(), getOwnDeviceId());
    mXmppConnectionService.sendIqPacket(account, packet, new OnIqPacketReceived() {

        @Override
        public void onIqPacketReceived(Account account, IqPacket packet) {
            if (packet.getType() == IqPacket.TYPE.TIMEOUT) {
                //ignore timeout. do nothing
                return;
            }
            if (packet.getType() == IqPacket.TYPE.ERROR) {
                Element error = packet.findChild("error");
                if (error == null || !error.hasChild("item-not-found")) {
                    pepBroken = true;
                    Log.w(Config.LOGTAG, AxolotlService.getLogprefix(account) + "request for device bundles came back with something other than item-not-found" + packet);
                    return;
                }
            }
            PreKeyBundle bundle = mXmppConnectionService.getIqParser().bundle(packet);
            Map<Integer, ECPublicKey> keys = mXmppConnectionService.getIqParser().preKeyPublics(packet);
            boolean flush = false;
            if (bundle == null) {
                Log.w(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Received invalid bundle:" + packet);
                bundle = new PreKeyBundle(-1, -1, -1, null, -1, null, null, null);
                flush = true;
            }
            if (keys == null) {
                Log.w(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Received invalid prekeys:" + packet);
            }
            try {
                boolean changed = false;
                // Validate IdentityKey
                IdentityKeyPair identityKeyPair = axolotlStore.getIdentityKeyPair();
                if (flush || !identityKeyPair.getPublicKey().equals(bundle.getIdentityKey())) {
                    Log.i(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Adding own IdentityKey " + identityKeyPair.getPublicKey() + " to PEP.");
                    changed = true;
                }
                // Validate signedPreKeyRecord + ID
                SignedPreKeyRecord signedPreKeyRecord;
                int numSignedPreKeys = axolotlStore.loadSignedPreKeys().size();
                try {
                    signedPreKeyRecord = axolotlStore.loadSignedPreKey(bundle.getSignedPreKeyId());
                    if (flush || !bundle.getSignedPreKey().equals(signedPreKeyRecord.getKeyPair().getPublicKey()) || !Arrays.equals(bundle.getSignedPreKeySignature(), signedPreKeyRecord.getSignature())) {
                        Log.i(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Adding new signedPreKey with ID " + (numSignedPreKeys + 1) + " to PEP.");
                        signedPreKeyRecord = KeyHelper.generateSignedPreKey(identityKeyPair, numSignedPreKeys + 1);
                        axolotlStore.storeSignedPreKey(signedPreKeyRecord.getId(), signedPreKeyRecord);
                        changed = true;
                    }
                } catch (InvalidKeyIdException e) {
                    Log.i(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Adding new signedPreKey with ID " + (numSignedPreKeys + 1) + " to PEP.");
                    signedPreKeyRecord = KeyHelper.generateSignedPreKey(identityKeyPair, numSignedPreKeys + 1);
                    axolotlStore.storeSignedPreKey(signedPreKeyRecord.getId(), signedPreKeyRecord);
                    changed = true;
                }
                // Validate PreKeys
                Set<PreKeyRecord> preKeyRecords = new HashSet<>();
                if (keys != null) {
                    for (Integer id : keys.keySet()) {
                        try {
                            PreKeyRecord preKeyRecord = axolotlStore.loadPreKey(id);
                            if (preKeyRecord.getKeyPair().getPublicKey().equals(keys.get(id))) {
                                preKeyRecords.add(preKeyRecord);
                            }
                        } catch (InvalidKeyIdException ignored) {
                        }
                    }
                }
                int newKeys = NUM_KEYS_TO_PUBLISH - preKeyRecords.size();
                if (newKeys > 0) {
                    List<PreKeyRecord> newRecords = KeyHelper.generatePreKeys(axolotlStore.getCurrentPreKeyId() + 1, newKeys);
                    preKeyRecords.addAll(newRecords);
                    for (PreKeyRecord record : newRecords) {
                        axolotlStore.storePreKey(record.getId(), record);
                    }
                    changed = true;
                    Log.i(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Adding " + newKeys + " new preKeys to PEP.");
                }
                if (changed) {
                    if (account.getPrivateKeyAlias() != null && Config.X509_VERIFICATION) {
                        mXmppConnectionService.publishDisplayName(account);
                        publishDeviceVerificationAndBundle(signedPreKeyRecord, preKeyRecords, announce, wipe);
                    } else {
                        publishDeviceBundle(signedPreKeyRecord, preKeyRecords, announce, wipe);
                    }
                } else {
                    Log.d(Config.LOGTAG, getLogprefix(account) + "Bundle " + getOwnDeviceId() + " in PEP was current");
                    if (wipe) {
                        wipeOtherPepDevices();
                    } else if (announce) {
                        Log.d(Config.LOGTAG, getLogprefix(account) + "Announcing device " + getOwnDeviceId());
                        publishOwnDeviceIdIfNeeded();
                    }
                }
            } catch (InvalidKeyException e) {
                Log.e(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Failed to publish bundle " + getOwnDeviceId() + ", reason: " + e.getMessage());
            }
        }
    });
}
Also used : Account(eu.siacs.conversations.entities.Account) Set(java.util.Set) HashSet(java.util.HashSet) OnIqPacketReceived(eu.siacs.conversations.xmpp.OnIqPacketReceived) Element(eu.siacs.conversations.xml.Element) InvalidKeyException(org.whispersystems.libaxolotl.InvalidKeyException) IqPacket(eu.siacs.conversations.xmpp.stanzas.IqPacket) PreKeyBundle(org.whispersystems.libaxolotl.state.PreKeyBundle) SignedPreKeyRecord(org.whispersystems.libaxolotl.state.SignedPreKeyRecord) PreKeyRecord(org.whispersystems.libaxolotl.state.PreKeyRecord) InvalidKeyIdException(org.whispersystems.libaxolotl.InvalidKeyIdException) List(java.util.List) ArrayList(java.util.ArrayList) IdentityKeyPair(org.whispersystems.libaxolotl.IdentityKeyPair) Map(java.util.Map) HashMap(java.util.HashMap) SignedPreKeyRecord(org.whispersystems.libaxolotl.state.SignedPreKeyRecord)

Example 2 with PreKeyRecord

use of org.whispersystems.libaxolotl.state.PreKeyRecord in project Conversations by siacs.

the class DatabaseBackend method loadPreKey.

public PreKeyRecord loadPreKey(Account account, int preKeyId) {
    PreKeyRecord record = null;
    Cursor cursor = getCursorForPreKey(account, preKeyId);
    if (cursor.getCount() != 0) {
        cursor.moveToFirst();
        try {
            record = new PreKeyRecord(Base64.decode(cursor.getString(cursor.getColumnIndex(SQLiteAxolotlStore.KEY)), Base64.DEFAULT));
        } catch (IOException e) {
            throw new AssertionError(e);
        }
    }
    cursor.close();
    return record;
}
Also used : SignedPreKeyRecord(org.whispersystems.libaxolotl.state.SignedPreKeyRecord) PreKeyRecord(org.whispersystems.libaxolotl.state.PreKeyRecord) IOException(java.io.IOException) Cursor(android.database.Cursor)

Example 3 with PreKeyRecord

use of org.whispersystems.libaxolotl.state.PreKeyRecord in project Conversations by siacs.

the class IqGenerator method publishBundles.

public IqPacket publishBundles(final SignedPreKeyRecord signedPreKeyRecord, final IdentityKey identityKey, final Set<PreKeyRecord> preKeyRecords, final int deviceId) {
    final Element item = new Element("item");
    final Element bundle = item.addChild("bundle", AxolotlService.PEP_PREFIX);
    final Element signedPreKeyPublic = bundle.addChild("signedPreKeyPublic");
    signedPreKeyPublic.setAttribute("signedPreKeyId", signedPreKeyRecord.getId());
    ECPublicKey publicKey = signedPreKeyRecord.getKeyPair().getPublicKey();
    signedPreKeyPublic.setContent(Base64.encodeToString(publicKey.serialize(), Base64.DEFAULT));
    final Element signedPreKeySignature = bundle.addChild("signedPreKeySignature");
    signedPreKeySignature.setContent(Base64.encodeToString(signedPreKeyRecord.getSignature(), Base64.DEFAULT));
    final Element identityKeyElement = bundle.addChild("identityKey");
    identityKeyElement.setContent(Base64.encodeToString(identityKey.serialize(), Base64.DEFAULT));
    final Element prekeys = bundle.addChild("prekeys", AxolotlService.PEP_PREFIX);
    for (PreKeyRecord preKeyRecord : preKeyRecords) {
        final Element prekey = prekeys.addChild("preKeyPublic");
        prekey.setAttribute("preKeyId", preKeyRecord.getId());
        prekey.setContent(Base64.encodeToString(preKeyRecord.getKeyPair().getPublicKey().serialize(), Base64.DEFAULT));
    }
    return publish(AxolotlService.PEP_BUNDLES + ":" + deviceId, item);
}
Also used : ECPublicKey(org.whispersystems.libaxolotl.ecc.ECPublicKey) Element(eu.siacs.conversations.xml.Element) PreKeyRecord(org.whispersystems.libaxolotl.state.PreKeyRecord) SignedPreKeyRecord(org.whispersystems.libaxolotl.state.SignedPreKeyRecord)

Aggregations

PreKeyRecord (org.whispersystems.libaxolotl.state.PreKeyRecord)3 SignedPreKeyRecord (org.whispersystems.libaxolotl.state.SignedPreKeyRecord)3 Element (eu.siacs.conversations.xml.Element)2 Cursor (android.database.Cursor)1 Account (eu.siacs.conversations.entities.Account)1 OnIqPacketReceived (eu.siacs.conversations.xmpp.OnIqPacketReceived)1 IqPacket (eu.siacs.conversations.xmpp.stanzas.IqPacket)1 IOException (java.io.IOException)1 ArrayList (java.util.ArrayList)1 HashMap (java.util.HashMap)1 HashSet (java.util.HashSet)1 List (java.util.List)1 Map (java.util.Map)1 Set (java.util.Set)1 IdentityKeyPair (org.whispersystems.libaxolotl.IdentityKeyPair)1 InvalidKeyException (org.whispersystems.libaxolotl.InvalidKeyException)1 InvalidKeyIdException (org.whispersystems.libaxolotl.InvalidKeyIdException)1 ECPublicKey (org.whispersystems.libaxolotl.ecc.ECPublicKey)1 PreKeyBundle (org.whispersystems.libaxolotl.state.PreKeyBundle)1