omemo changes: use 12 byte IV, no longer accept auth tag appended to payload
This commit is contained in:
parent
b56f6fbf4c
commit
e38a9cd729
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@ -100,7 +100,7 @@ public final class Config {
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public static final boolean REMOVE_BROKEN_DEVICES = false;
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public static final boolean REMOVE_BROKEN_DEVICES = false;
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public static final boolean OMEMO_PADDING = false;
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public static final boolean OMEMO_PADDING = false;
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public static final boolean PUT_AUTH_TAG_INTO_KEY = true;
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public static final boolean PUT_AUTH_TAG_INTO_KEY = true;
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public static final boolean TWELVE_BYTE_IV = false;
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public static final boolean TWELVE_BYTE_IV = true;
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public static final boolean USE_BOOKMARKS2 = false;
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public static final boolean USE_BOOKMARKS2 = false;
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@ -125,7 +125,7 @@ public final class Config {
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public static final long MAM_MAX_CATCHUP = MILLISECONDS_IN_DAY * 5;
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public static final long MAM_MAX_CATCHUP = MILLISECONDS_IN_DAY * 5;
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public static final int MAM_MAX_MESSAGES = 750;
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public static final int MAM_MAX_MESSAGES = 750;
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public static final ChatState DEFAULT_CHATSTATE = ChatState.ACTIVE;
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public static final ChatState DEFAULT_CHAT_STATE = ChatState.ACTIVE;
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public static final int TYPING_TIMEOUT = 8;
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public static final int TYPING_TIMEOUT = 8;
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public static final int EXPIRY_INTERVAL = 30 * 60 * 1000; // 30 minutes
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public static final int EXPIRY_INTERVAL = 30 * 60 * 1000; // 30 minutes
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@ -79,16 +79,37 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
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private final Map<Jid, Boolean> fetchDeviceListStatus = new HashMap<>();
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private final Map<Jid, Boolean> fetchDeviceListStatus = new HashMap<>();
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private final HashMap<Jid, List<OnDeviceIdsFetched>> fetchDeviceIdsMap = new HashMap<>();
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private final HashMap<Jid, List<OnDeviceIdsFetched>> fetchDeviceIdsMap = new HashMap<>();
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private final SerialSingleThreadExecutor executor;
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private final SerialSingleThreadExecutor executor;
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private final Set<SignalProtocolAddress> healingAttempts = new HashSet<>();
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private final HashSet<Integer> cleanedOwnDeviceIds = new HashSet<>();
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private final Set<Integer> PREVIOUSLY_REMOVED_FROM_ANNOUNCEMENT = new HashSet<>();
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private int numPublishTriesOnEmptyPep = 0;
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private int numPublishTriesOnEmptyPep = 0;
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private boolean pepBroken = false;
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private boolean pepBroken = false;
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private final Set<SignalProtocolAddress> healingAttempts = new HashSet<>();
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private int lastDeviceListNotificationHash = 0;
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private int lastDeviceListNotificationHash = 0;
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private final HashSet<Integer> cleanedOwnDeviceIds = new HashSet<>();
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private Set<XmppAxolotlSession> postponedSessions = new HashSet<>(); //sessions stored here will receive after mam catchup treatment
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private Set<XmppAxolotlSession> postponedSessions = new HashSet<>(); //sessions stored here will receive after mam catchup treatment
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private Set<SignalProtocolAddress> postponedHealing = new HashSet<>(); //addresses stored here will need a healing notification after mam catchup
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private Set<SignalProtocolAddress> postponedHealing = new HashSet<>(); //addresses stored here will need a healing notification after mam catchup
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private AtomicBoolean changeAccessMode = new AtomicBoolean(false);
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private AtomicBoolean changeAccessMode = new AtomicBoolean(false);
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public AxolotlService(Account account, XmppConnectionService connectionService) {
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if (account == null || connectionService == null) {
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throw new IllegalArgumentException("account and service cannot be null");
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}
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if (Security.getProvider("BC") == null) {
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Security.addProvider(new BouncyCastleProvider());
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}
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this.mXmppConnectionService = connectionService;
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this.account = account;
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this.axolotlStore = new SQLiteAxolotlStore(this.account, this.mXmppConnectionService);
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this.deviceIds = new HashMap<>();
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this.messageCache = new HashMap<>();
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this.sessions = new SessionMap(mXmppConnectionService, axolotlStore, account);
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this.fetchStatusMap = new FetchStatusMap();
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this.executor = new SerialSingleThreadExecutor("Axolotl");
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}
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public static String getLogprefix(Account account) {
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return LOGPREFIX + " (" + account.getJid().asBareJid().toString() + "): ";
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}
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@Override
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@Override
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public void onAdvancedStreamFeaturesAvailable(Account account) {
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public void onAdvancedStreamFeaturesAvailable(Account account) {
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if (Config.supportOmemo()
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if (Config.supportOmemo()
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@ -106,7 +127,7 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
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}
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}
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public boolean hasErrorFetchingDeviceList(List<Jid> jids) {
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public boolean hasErrorFetchingDeviceList(List<Jid> jids) {
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for(Jid jid : jids) {
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for (Jid jid : jids) {
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if (hasErrorFetchingDeviceList(jid)) {
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if (hasErrorFetchingDeviceList(jid)) {
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return true;
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return true;
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}
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}
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@ -145,172 +166,6 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
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return false;
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return false;
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}
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}
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private static class AxolotlAddressMap<T> {
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protected Map<String, Map<Integer, T>> map;
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protected final Object MAP_LOCK = new Object();
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public AxolotlAddressMap() {
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this.map = new HashMap<>();
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}
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public void put(SignalProtocolAddress address, T value) {
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synchronized (MAP_LOCK) {
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Map<Integer, T> devices = map.get(address.getName());
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if (devices == null) {
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devices = new HashMap<>();
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map.put(address.getName(), devices);
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}
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devices.put(address.getDeviceId(), value);
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}
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}
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public T get(SignalProtocolAddress address) {
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synchronized (MAP_LOCK) {
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Map<Integer, T> devices = map.get(address.getName());
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if (devices == null) {
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return null;
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}
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return devices.get(address.getDeviceId());
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}
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}
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public Map<Integer, T> getAll(String name) {
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synchronized (MAP_LOCK) {
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Map<Integer, T> devices = map.get(name);
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if (devices == null) {
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return new HashMap<>();
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}
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return devices;
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}
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}
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public boolean hasAny(SignalProtocolAddress address) {
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synchronized (MAP_LOCK) {
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Map<Integer, T> devices = map.get(address.getName());
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return devices != null && !devices.isEmpty();
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}
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}
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public void clear() {
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map.clear();
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}
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}
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private static class SessionMap extends AxolotlAddressMap<XmppAxolotlSession> {
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private final XmppConnectionService xmppConnectionService;
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private final Account account;
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public SessionMap(XmppConnectionService service, SQLiteAxolotlStore store, Account account) {
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super();
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this.xmppConnectionService = service;
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this.account = account;
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this.fillMap(store);
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}
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public Set<Jid> findCounterpartsForSourceId(Integer sid) {
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Set<Jid> candidates = new HashSet<>();
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synchronized (MAP_LOCK) {
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for(Map.Entry<String,Map<Integer,XmppAxolotlSession>> entry : map.entrySet()) {
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String key = entry.getKey();
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if (entry.getValue().containsKey(sid)) {
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candidates.add(Jid.of(key));
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}
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}
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}
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return candidates;
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}
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private void putDevicesForJid(String bareJid, List<Integer> deviceIds, SQLiteAxolotlStore store) {
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for (Integer deviceId : deviceIds) {
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SignalProtocolAddress axolotlAddress = new SignalProtocolAddress(bareJid, deviceId);
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IdentityKey identityKey = store.loadSession(axolotlAddress).getSessionState().getRemoteIdentityKey();
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if (Config.X509_VERIFICATION) {
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X509Certificate certificate = store.getFingerprintCertificate(CryptoHelper.bytesToHex(identityKey.getPublicKey().serialize()));
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if (certificate != null) {
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Bundle information = CryptoHelper.extractCertificateInformation(certificate);
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try {
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final String cn = information.getString("subject_cn");
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final Jid jid = Jid.of(bareJid);
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Log.d(Config.LOGTAG, "setting common name for " + jid + " to " + cn);
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account.getRoster().getContact(jid).setCommonName(cn);
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} catch (final IllegalArgumentException ignored) {
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//ignored
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}
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}
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}
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this.put(axolotlAddress, new XmppAxolotlSession(account, store, axolotlAddress, identityKey));
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}
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}
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private void fillMap(SQLiteAxolotlStore store) {
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List<Integer> deviceIds = store.getSubDeviceSessions(account.getJid().asBareJid().toString());
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putDevicesForJid(account.getJid().asBareJid().toString(), deviceIds, store);
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for (String address : store.getKnownAddresses()) {
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deviceIds = store.getSubDeviceSessions(address);
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putDevicesForJid(address, deviceIds, store);
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}
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}
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@Override
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public void put(SignalProtocolAddress address, XmppAxolotlSession value) {
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super.put(address, value);
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value.setNotFresh();
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}
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public void put(XmppAxolotlSession session) {
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this.put(session.getRemoteAddress(), session);
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}
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}
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public enum FetchStatus {
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PENDING,
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SUCCESS,
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SUCCESS_VERIFIED,
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TIMEOUT,
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SUCCESS_TRUSTED,
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ERROR
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}
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private static class FetchStatusMap extends AxolotlAddressMap<FetchStatus> {
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public void clearErrorFor(Jid jid) {
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synchronized (MAP_LOCK) {
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Map<Integer, FetchStatus> devices = this.map.get(jid.asBareJid().toString());
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if (devices == null) {
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return;
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}
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for (Map.Entry<Integer, FetchStatus> entry : devices.entrySet()) {
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if (entry.getValue() == FetchStatus.ERROR) {
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Log.d(Config.LOGTAG, "resetting error for " + jid.asBareJid() + "(" + entry.getKey() + ")");
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entry.setValue(FetchStatus.TIMEOUT);
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}
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}
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}
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}
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}
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public static String getLogprefix(Account account) {
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return LOGPREFIX + " (" + account.getJid().asBareJid().toString() + "): ";
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}
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public AxolotlService(Account account, XmppConnectionService connectionService) {
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if (account == null || connectionService == null) {
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throw new IllegalArgumentException("account and service cannot be null");
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}
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if (Security.getProvider("BC") == null) {
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Security.addProvider(new BouncyCastleProvider());
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}
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this.mXmppConnectionService = connectionService;
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this.account = account;
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this.axolotlStore = new SQLiteAxolotlStore(this.account, this.mXmppConnectionService);
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this.deviceIds = new HashMap<>();
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this.messageCache = new HashMap<>();
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this.sessions = new SessionMap(mXmppConnectionService, axolotlStore, account);
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this.fetchStatusMap = new FetchStatusMap();
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this.executor = new SerialSingleThreadExecutor("Axolotl");
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}
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public String getOwnFingerprint() {
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public String getOwnFingerprint() {
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return CryptoHelper.bytesToHex(axolotlStore.getIdentityKeyPair().getPublicKey().serialize());
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return CryptoHelper.bytesToHex(axolotlStore.getIdentityKeyPair().getPublicKey().serialize());
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}
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}
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@ -359,7 +214,6 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
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return s;
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return s;
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}
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}
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public Collection<XmppAxolotlSession> findSessionsForContact(Contact contact) {
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public Collection<XmppAxolotlSession> findSessionsForContact(Contact contact) {
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SignalProtocolAddress contactAddress = getAddressForJid(contact.getJid());
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SignalProtocolAddress contactAddress = getAddressForJid(contact.getJid());
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ArrayList<XmppAxolotlSession> s = new ArrayList<>(this.sessions.getAll(contactAddress.getName()).values());
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ArrayList<XmppAxolotlSession> s = new ArrayList<>(this.sessions.getAll(contactAddress.getName()).values());
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@ -495,7 +349,7 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
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mXmppConnectionService.updateAccountUi();
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mXmppConnectionService.updateAccountUi();
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}
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}
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} else {
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} else {
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Log.d(Config.LOGTAG,"skipped device list update because it hasn't changed");
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Log.d(Config.LOGTAG, "skipped device list update because it hasn't changed");
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}
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}
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}
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}
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@ -610,7 +464,7 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
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}
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}
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if (packet.getType() == IqPacket.TYPE.ERROR) {
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if (packet.getType() == IqPacket.TYPE.ERROR) {
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if (preConditionNotMet) {
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if (preConditionNotMet) {
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Log.d(Config.LOGTAG,account.getJid().asBareJid()+": device list pre condition still not met on second attempt");
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Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": device list pre condition still not met on second attempt");
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} else if (error != null) {
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} else if (error != null) {
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pepBroken = true;
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pepBroken = true;
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Log.d(Config.LOGTAG, getLogprefix(account) + "Error received while publishing own device id" + packet.findChild("error"));
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Log.d(Config.LOGTAG, getLogprefix(account) + "Error received while publishing own device id" + packet.findChild("error"));
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@ -829,7 +683,7 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
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}
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}
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} else if (packet.getType() == IqPacket.TYPE.ERROR) {
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} else if (packet.getType() == IqPacket.TYPE.ERROR) {
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if (preconditionNotMet) {
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if (preconditionNotMet) {
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Log.d(Config.LOGTAG,getLogprefix(account) + "bundle precondition still not met after second attempt");
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Log.d(Config.LOGTAG, getLogprefix(account) + "bundle precondition still not met after second attempt");
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} else {
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} else {
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Log.d(Config.LOGTAG, getLogprefix(account) + "Error received while publishing bundle: " + packet.toString());
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Log.d(Config.LOGTAG, getLogprefix(account) + "Error received while publishing bundle: " + packet.toString());
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}
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}
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@ -924,8 +778,6 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
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}
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}
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}
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}
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private final Set<Integer> PREVIOUSLY_REMOVED_FROM_ANNOUNCEMENT = new HashSet<>();
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private void finishBuildingSessionsFromPEP(final SignalProtocolAddress address) {
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private void finishBuildingSessionsFromPEP(final SignalProtocolAddress address) {
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SignalProtocolAddress ownAddress = new SignalProtocolAddress(account.getJid().asBareJid().toString(), 0);
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SignalProtocolAddress ownAddress = new SignalProtocolAddress(account.getJid().asBareJid().toString(), 0);
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Map<Integer, FetchStatus> own = fetchStatusMap.getAll(ownAddress.getName());
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Map<Integer, FetchStatus> own = fetchStatusMap.getAll(ownAddress.getName());
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@ -963,14 +815,6 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
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return !hasAny(jid) && (!deviceIds.containsKey(jid) || deviceIds.get(jid).isEmpty());
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return !hasAny(jid) && (!deviceIds.containsKey(jid) || deviceIds.get(jid).isEmpty());
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}
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}
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public interface OnDeviceIdsFetched {
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void fetched(Jid jid, Set<Integer> deviceIds);
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}
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public interface OnMultipleDeviceIdFetched {
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void fetched();
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}
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public void fetchDeviceIds(final Jid jid) {
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public void fetchDeviceIds(final Jid jid) {
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fetchDeviceIds(jid, null);
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fetchDeviceIds(jid, null);
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}
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}
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@ -1047,11 +891,6 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
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}
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}
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}
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}
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interface OnSessionBuildFromPep {
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void onSessionBuildSuccessful();
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void onSessionBuildFailed();
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}
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private void buildSessionFromPEP(final SignalProtocolAddress address) {
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private void buildSessionFromPEP(final SignalProtocolAddress address) {
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buildSessionFromPEP(address, null);
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buildSessionFromPEP(address, null);
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}
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}
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@ -1153,7 +992,7 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
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private void removeFromDeviceAnnouncement(Integer id) {
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private void removeFromDeviceAnnouncement(Integer id) {
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HashSet<Integer> temp = new HashSet<>(getOwnDeviceIds());
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HashSet<Integer> temp = new HashSet<>(getOwnDeviceIds());
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if (temp.remove(id)) {
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if (temp.remove(id)) {
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Log.d(Config.LOGTAG,account.getJid().asBareJid()+" remove own device id "+id+" from announcement. devices left:"+temp);
|
Log.d(Config.LOGTAG, account.getJid().asBareJid() + " remove own device id " + id + " from announcement. devices left:" + temp);
|
||||||
publishOwnDeviceId(temp);
|
publishOwnDeviceId(temp);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
@ -1310,7 +1149,7 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
|
||||||
return false;
|
return false;
|
||||||
}
|
}
|
||||||
sessions.addAll(findOwnSessions());
|
sessions.addAll(findOwnSessions());
|
||||||
for(XmppAxolotlSession session : sessions) {
|
for (XmppAxolotlSession session : sessions) {
|
||||||
axolotlMessage.addDevice(session);
|
axolotlMessage.addDevice(session);
|
||||||
}
|
}
|
||||||
return true;
|
return true;
|
||||||
|
@ -1399,7 +1238,6 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
|
||||||
private XmppAxolotlSession getReceivingSession(SignalProtocolAddress senderAddress) {
|
private XmppAxolotlSession getReceivingSession(SignalProtocolAddress senderAddress) {
|
||||||
XmppAxolotlSession session = sessions.get(senderAddress);
|
XmppAxolotlSession session = sessions.get(senderAddress);
|
||||||
if (session == null) {
|
if (session == null) {
|
||||||
//Log.d(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Account: " + account.getJid() + " No axolotl session found while parsing received message " + message);
|
|
||||||
session = recreateUncachedSession(senderAddress);
|
session = recreateUncachedSession(senderAddress);
|
||||||
if (session == null) {
|
if (session == null) {
|
||||||
session = new XmppAxolotlSession(account, axolotlStore, senderAddress);
|
session = new XmppAxolotlSession(account, axolotlStore, senderAddress);
|
||||||
|
@ -1408,7 +1246,7 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
|
||||||
return session;
|
return session;
|
||||||
}
|
}
|
||||||
|
|
||||||
public XmppAxolotlMessage.XmppAxolotlPlaintextMessage processReceivingPayloadMessage(XmppAxolotlMessage message, boolean postponePreKeyMessageHandling) throws NotEncryptedForThisDeviceException, BrokenSessionException {
|
public XmppAxolotlMessage.XmppAxolotlPlaintextMessage processReceivingPayloadMessage(XmppAxolotlMessage message, boolean postponePreKeyMessageHandling) throws NotEncryptedForThisDeviceException, BrokenSessionException, OutdatedSenderException {
|
||||||
XmppAxolotlMessage.XmppAxolotlPlaintextMessage plaintextMessage = null;
|
XmppAxolotlMessage.XmppAxolotlPlaintextMessage plaintextMessage = null;
|
||||||
|
|
||||||
XmppAxolotlSession session = getReceivingSession(message);
|
XmppAxolotlSession session = getReceivingSession(message);
|
||||||
|
@ -1427,6 +1265,9 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
|
||||||
}
|
}
|
||||||
} catch (final BrokenSessionException e) {
|
} catch (final BrokenSessionException e) {
|
||||||
throw e;
|
throw e;
|
||||||
|
} catch (final OutdatedSenderException e) {
|
||||||
|
Log.e(Config.LOGTAG,account.getJid().asBareJid()+": "+e.getMessage());
|
||||||
|
throw e;
|
||||||
} catch (CryptoFailedException e) {
|
} catch (CryptoFailedException e) {
|
||||||
Log.w(Config.LOGTAG, getLogprefix(account) + "Failed to decrypt message from " + message.getFrom(), e);
|
Log.w(Config.LOGTAG, getLogprefix(account) + "Failed to decrypt message from " + message.getFrom(), e);
|
||||||
}
|
}
|
||||||
|
@ -1439,7 +1280,7 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
|
||||||
}
|
}
|
||||||
|
|
||||||
public void reportBrokenSessionException(BrokenSessionException e, boolean postpone) {
|
public void reportBrokenSessionException(BrokenSessionException e, boolean postpone) {
|
||||||
Log.e(Config.LOGTAG,account.getJid().asBareJid()+": broken session with "+e.getSignalProtocolAddress().toString()+" detected", e);
|
Log.e(Config.LOGTAG, account.getJid().asBareJid() + ": broken session with " + e.getSignalProtocolAddress().toString() + " detected", e);
|
||||||
if (postpone) {
|
if (postpone) {
|
||||||
postponedHealing.add(e.getSignalProtocolAddress());
|
postponedHealing.add(e.getSignalProtocolAddress());
|
||||||
} else {
|
} else {
|
||||||
|
@ -1449,7 +1290,7 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
|
||||||
|
|
||||||
private void notifyRequiresHealing(final SignalProtocolAddress signalProtocolAddress) {
|
private void notifyRequiresHealing(final SignalProtocolAddress signalProtocolAddress) {
|
||||||
if (healingAttempts.add(signalProtocolAddress)) {
|
if (healingAttempts.add(signalProtocolAddress)) {
|
||||||
Log.d(Config.LOGTAG,account.getJid().asBareJid()+": attempt to heal "+signalProtocolAddress);
|
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": attempt to heal " + signalProtocolAddress);
|
||||||
buildSessionFromPEP(signalProtocolAddress, new OnSessionBuildFromPep() {
|
buildSessionFromPEP(signalProtocolAddress, new OnSessionBuildFromPep() {
|
||||||
@Override
|
@Override
|
||||||
public void onSessionBuildSuccessful() {
|
public void onSessionBuildSuccessful() {
|
||||||
|
@ -1463,7 +1304,7 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
|
||||||
}
|
}
|
||||||
});
|
});
|
||||||
} else {
|
} else {
|
||||||
Log.d(Config.LOGTAG,account.getJid().asBareJid()+": do not attempt to heal "+signalProtocolAddress+" again");
|
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": do not attempt to heal " + signalProtocolAddress + " again");
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -1474,7 +1315,7 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
|
||||||
if (axolotlStore.flushPreKeys()) {
|
if (axolotlStore.flushPreKeys()) {
|
||||||
publishBundlesIfNeeded(false, false);
|
publishBundlesIfNeeded(false, false);
|
||||||
} else {
|
} else {
|
||||||
Log.d(Config.LOGTAG,account.getJid().asBareJid()+": nothing to flush. Not republishing key");
|
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": nothing to flush. Not republishing key");
|
||||||
}
|
}
|
||||||
if (trustedOrPreviouslyResponded(session)) {
|
if (trustedOrPreviouslyResponded(session)) {
|
||||||
completeSession(session);
|
completeSession(session);
|
||||||
|
@ -1503,7 +1344,6 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
private boolean trustedOrPreviouslyResponded(XmppAxolotlSession session) {
|
private boolean trustedOrPreviouslyResponded(XmppAxolotlSession session) {
|
||||||
try {
|
try {
|
||||||
return trustedOrPreviouslyResponded(Jid.of(session.getRemoteAddress().getName()));
|
return trustedOrPreviouslyResponded(Jid.of(session.getRemoteAddress().getName()));
|
||||||
|
@ -1533,7 +1373,6 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
public XmppAxolotlMessage.XmppAxolotlKeyTransportMessage processReceivingKeyTransportMessage(XmppAxolotlMessage message, final boolean postponePreKeyMessageHandling) {
|
public XmppAxolotlMessage.XmppAxolotlKeyTransportMessage processReceivingKeyTransportMessage(XmppAxolotlMessage message, final boolean postponePreKeyMessageHandling) {
|
||||||
final XmppAxolotlMessage.XmppAxolotlKeyTransportMessage keyTransportMessage;
|
final XmppAxolotlMessage.XmppAxolotlKeyTransportMessage keyTransportMessage;
|
||||||
final XmppAxolotlSession session = getReceivingSession(message);
|
final XmppAxolotlSession session = getReceivingSession(message);
|
||||||
|
@ -1565,4 +1404,164 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
public enum FetchStatus {
|
||||||
|
PENDING,
|
||||||
|
SUCCESS,
|
||||||
|
SUCCESS_VERIFIED,
|
||||||
|
TIMEOUT,
|
||||||
|
SUCCESS_TRUSTED,
|
||||||
|
ERROR
|
||||||
|
}
|
||||||
|
|
||||||
|
public interface OnDeviceIdsFetched {
|
||||||
|
void fetched(Jid jid, Set<Integer> deviceIds);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
public interface OnMultipleDeviceIdFetched {
|
||||||
|
void fetched();
|
||||||
|
}
|
||||||
|
|
||||||
|
interface OnSessionBuildFromPep {
|
||||||
|
void onSessionBuildSuccessful();
|
||||||
|
|
||||||
|
void onSessionBuildFailed();
|
||||||
|
}
|
||||||
|
|
||||||
|
private static class AxolotlAddressMap<T> {
|
||||||
|
protected final Object MAP_LOCK = new Object();
|
||||||
|
protected Map<String, Map<Integer, T>> map;
|
||||||
|
|
||||||
|
public AxolotlAddressMap() {
|
||||||
|
this.map = new HashMap<>();
|
||||||
|
}
|
||||||
|
|
||||||
|
public void put(SignalProtocolAddress address, T value) {
|
||||||
|
synchronized (MAP_LOCK) {
|
||||||
|
Map<Integer, T> devices = map.get(address.getName());
|
||||||
|
if (devices == null) {
|
||||||
|
devices = new HashMap<>();
|
||||||
|
map.put(address.getName(), devices);
|
||||||
|
}
|
||||||
|
devices.put(address.getDeviceId(), value);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
public T get(SignalProtocolAddress address) {
|
||||||
|
synchronized (MAP_LOCK) {
|
||||||
|
Map<Integer, T> devices = map.get(address.getName());
|
||||||
|
if (devices == null) {
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
return devices.get(address.getDeviceId());
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
public Map<Integer, T> getAll(String name) {
|
||||||
|
synchronized (MAP_LOCK) {
|
||||||
|
Map<Integer, T> devices = map.get(name);
|
||||||
|
if (devices == null) {
|
||||||
|
return new HashMap<>();
|
||||||
|
}
|
||||||
|
return devices;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
public boolean hasAny(SignalProtocolAddress address) {
|
||||||
|
synchronized (MAP_LOCK) {
|
||||||
|
Map<Integer, T> devices = map.get(address.getName());
|
||||||
|
return devices != null && !devices.isEmpty();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
public void clear() {
|
||||||
|
map.clear();
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
private static class SessionMap extends AxolotlAddressMap<XmppAxolotlSession> {
|
||||||
|
private final XmppConnectionService xmppConnectionService;
|
||||||
|
private final Account account;
|
||||||
|
|
||||||
|
public SessionMap(XmppConnectionService service, SQLiteAxolotlStore store, Account account) {
|
||||||
|
super();
|
||||||
|
this.xmppConnectionService = service;
|
||||||
|
this.account = account;
|
||||||
|
this.fillMap(store);
|
||||||
|
}
|
||||||
|
|
||||||
|
public Set<Jid> findCounterpartsForSourceId(Integer sid) {
|
||||||
|
Set<Jid> candidates = new HashSet<>();
|
||||||
|
synchronized (MAP_LOCK) {
|
||||||
|
for (Map.Entry<String, Map<Integer, XmppAxolotlSession>> entry : map.entrySet()) {
|
||||||
|
String key = entry.getKey();
|
||||||
|
if (entry.getValue().containsKey(sid)) {
|
||||||
|
candidates.add(Jid.of(key));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return candidates;
|
||||||
|
}
|
||||||
|
|
||||||
|
private void putDevicesForJid(String bareJid, List<Integer> deviceIds, SQLiteAxolotlStore store) {
|
||||||
|
for (Integer deviceId : deviceIds) {
|
||||||
|
SignalProtocolAddress axolotlAddress = new SignalProtocolAddress(bareJid, deviceId);
|
||||||
|
IdentityKey identityKey = store.loadSession(axolotlAddress).getSessionState().getRemoteIdentityKey();
|
||||||
|
if (Config.X509_VERIFICATION) {
|
||||||
|
X509Certificate certificate = store.getFingerprintCertificate(CryptoHelper.bytesToHex(identityKey.getPublicKey().serialize()));
|
||||||
|
if (certificate != null) {
|
||||||
|
Bundle information = CryptoHelper.extractCertificateInformation(certificate);
|
||||||
|
try {
|
||||||
|
final String cn = information.getString("subject_cn");
|
||||||
|
final Jid jid = Jid.of(bareJid);
|
||||||
|
Log.d(Config.LOGTAG, "setting common name for " + jid + " to " + cn);
|
||||||
|
account.getRoster().getContact(jid).setCommonName(cn);
|
||||||
|
} catch (final IllegalArgumentException ignored) {
|
||||||
|
//ignored
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
this.put(axolotlAddress, new XmppAxolotlSession(account, store, axolotlAddress, identityKey));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
private void fillMap(SQLiteAxolotlStore store) {
|
||||||
|
List<Integer> deviceIds = store.getSubDeviceSessions(account.getJid().asBareJid().toString());
|
||||||
|
putDevicesForJid(account.getJid().asBareJid().toString(), deviceIds, store);
|
||||||
|
for (String address : store.getKnownAddresses()) {
|
||||||
|
deviceIds = store.getSubDeviceSessions(address);
|
||||||
|
putDevicesForJid(address, deviceIds, store);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public void put(SignalProtocolAddress address, XmppAxolotlSession value) {
|
||||||
|
super.put(address, value);
|
||||||
|
value.setNotFresh();
|
||||||
|
}
|
||||||
|
|
||||||
|
public void put(XmppAxolotlSession session) {
|
||||||
|
this.put(session.getRemoteAddress(), session);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
private static class FetchStatusMap extends AxolotlAddressMap<FetchStatus> {
|
||||||
|
|
||||||
|
public void clearErrorFor(Jid jid) {
|
||||||
|
synchronized (MAP_LOCK) {
|
||||||
|
Map<Integer, FetchStatus> devices = this.map.get(jid.asBareJid().toString());
|
||||||
|
if (devices == null) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
for (Map.Entry<Integer, FetchStatus> entry : devices.entrySet()) {
|
||||||
|
if (entry.getValue() == FetchStatus.ERROR) {
|
||||||
|
Log.d(Config.LOGTAG, "resetting error for " + jid.asBareJid() + "(" + entry.getKey() + ")");
|
||||||
|
entry.setValue(FetchStatus.TIMEOUT);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
|
@ -0,0 +1,8 @@
|
||||||
|
package eu.siacs.conversations.crypto.axolotl;
|
||||||
|
|
||||||
|
public class OutdatedSenderException extends CryptoFailedException {
|
||||||
|
|
||||||
|
public OutdatedSenderException(final String msg) {
|
||||||
|
super(msg);
|
||||||
|
}
|
||||||
|
}
|
|
@ -38,14 +38,241 @@ public class XmppAxolotlMessage {
|
||||||
private static final String KEYTYPE = "AES";
|
private static final String KEYTYPE = "AES";
|
||||||
private static final String CIPHERMODE = "AES/GCM/NoPadding";
|
private static final String CIPHERMODE = "AES/GCM/NoPadding";
|
||||||
private static final String PROVIDER = "BC";
|
private static final String PROVIDER = "BC";
|
||||||
|
private final List<XmppAxolotlSession.AxolotlKey> keys;
|
||||||
|
private final Jid from;
|
||||||
|
private final int sourceDeviceId;
|
||||||
private byte[] innerKey;
|
private byte[] innerKey;
|
||||||
private byte[] ciphertext = null;
|
private byte[] ciphertext = null;
|
||||||
private byte[] authtagPlusInnerKey = null;
|
private byte[] authtagPlusInnerKey = null;
|
||||||
private byte[] iv = null;
|
private byte[] iv = null;
|
||||||
private final List<XmppAxolotlSession.AxolotlKey> keys;
|
|
||||||
private final Jid from;
|
private XmppAxolotlMessage(final Element axolotlMessage, final Jid from) throws IllegalArgumentException {
|
||||||
private final int sourceDeviceId;
|
this.from = from;
|
||||||
|
Element header = axolotlMessage.findChild(HEADER);
|
||||||
|
try {
|
||||||
|
this.sourceDeviceId = Integer.parseInt(header.getAttribute(SOURCEID));
|
||||||
|
} catch (NumberFormatException e) {
|
||||||
|
throw new IllegalArgumentException("invalid source id");
|
||||||
|
}
|
||||||
|
List<Element> keyElements = header.getChildren();
|
||||||
|
this.keys = new ArrayList<>();
|
||||||
|
for (Element keyElement : keyElements) {
|
||||||
|
switch (keyElement.getName()) {
|
||||||
|
case KEYTAG:
|
||||||
|
try {
|
||||||
|
Integer recipientId = Integer.parseInt(keyElement.getAttribute(REMOTEID));
|
||||||
|
byte[] key = Base64.decode(keyElement.getContent().trim(), Base64.DEFAULT);
|
||||||
|
boolean isPreKey = keyElement.getAttributeAsBoolean("prekey");
|
||||||
|
this.keys.add(new XmppAxolotlSession.AxolotlKey(recipientId, key, isPreKey));
|
||||||
|
} catch (NumberFormatException e) {
|
||||||
|
throw new IllegalArgumentException("invalid remote id");
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case IVTAG:
|
||||||
|
if (this.iv != null) {
|
||||||
|
throw new IllegalArgumentException("Duplicate iv entry");
|
||||||
|
}
|
||||||
|
iv = Base64.decode(keyElement.getContent().trim(), Base64.DEFAULT);
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
Log.w(Config.LOGTAG, "Unexpected element in header: " + keyElement.toString());
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
final Element payloadElement = axolotlMessage.findChildEnsureSingle(PAYLOAD, AxolotlService.PEP_PREFIX);
|
||||||
|
if (payloadElement != null) {
|
||||||
|
ciphertext = Base64.decode(payloadElement.getContent().trim(), Base64.DEFAULT);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
XmppAxolotlMessage(Jid from, int sourceDeviceId) {
|
||||||
|
this.from = from;
|
||||||
|
this.sourceDeviceId = sourceDeviceId;
|
||||||
|
this.keys = new ArrayList<>();
|
||||||
|
this.iv = generateIv();
|
||||||
|
this.innerKey = generateKey();
|
||||||
|
}
|
||||||
|
|
||||||
|
public static int parseSourceId(final Element axolotlMessage) throws IllegalArgumentException {
|
||||||
|
final Element header = axolotlMessage.findChild(HEADER);
|
||||||
|
if (header == null) {
|
||||||
|
throw new IllegalArgumentException("No header found");
|
||||||
|
}
|
||||||
|
try {
|
||||||
|
return Integer.parseInt(header.getAttribute(SOURCEID));
|
||||||
|
} catch (NumberFormatException e) {
|
||||||
|
throw new IllegalArgumentException("invalid source id");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
public static XmppAxolotlMessage fromElement(Element element, Jid from) {
|
||||||
|
return new XmppAxolotlMessage(element, from);
|
||||||
|
}
|
||||||
|
|
||||||
|
private static byte[] generateKey() {
|
||||||
|
try {
|
||||||
|
KeyGenerator generator = KeyGenerator.getInstance(KEYTYPE);
|
||||||
|
generator.init(128);
|
||||||
|
return generator.generateKey().getEncoded();
|
||||||
|
} catch (NoSuchAlgorithmException e) {
|
||||||
|
Log.e(Config.LOGTAG, e.getMessage());
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
private static byte[] generateIv() {
|
||||||
|
final SecureRandom random = new SecureRandom();
|
||||||
|
byte[] iv = new byte[Config.TWELVE_BYTE_IV ? 12 : 16];
|
||||||
|
random.nextBytes(iv);
|
||||||
|
return iv;
|
||||||
|
}
|
||||||
|
|
||||||
|
private static byte[] getPaddedBytes(String plaintext) {
|
||||||
|
int plainLength = plaintext.getBytes().length;
|
||||||
|
int pad = Math.max(64, (plainLength / 32 + 1) * 32) - plainLength;
|
||||||
|
SecureRandom random = new SecureRandom();
|
||||||
|
int left = random.nextInt(pad);
|
||||||
|
int right = pad - left;
|
||||||
|
StringBuilder builder = new StringBuilder(plaintext);
|
||||||
|
for (int i = 0; i < left; ++i) {
|
||||||
|
builder.insert(0, random.nextBoolean() ? "\t" : " ");
|
||||||
|
}
|
||||||
|
for (int i = 0; i < right; ++i) {
|
||||||
|
builder.append(random.nextBoolean() ? "\t" : " ");
|
||||||
|
}
|
||||||
|
return builder.toString().getBytes();
|
||||||
|
}
|
||||||
|
|
||||||
|
public boolean hasPayload() {
|
||||||
|
return ciphertext != null;
|
||||||
|
}
|
||||||
|
|
||||||
|
void encrypt(String plaintext) throws CryptoFailedException {
|
||||||
|
try {
|
||||||
|
SecretKey secretKey = new SecretKeySpec(innerKey, KEYTYPE);
|
||||||
|
IvParameterSpec ivSpec = new IvParameterSpec(iv);
|
||||||
|
Cipher cipher = Compatibility.twentyEight() ? Cipher.getInstance(CIPHERMODE) : Cipher.getInstance(CIPHERMODE, PROVIDER);
|
||||||
|
cipher.init(Cipher.ENCRYPT_MODE, secretKey, ivSpec);
|
||||||
|
this.ciphertext = cipher.doFinal(Config.OMEMO_PADDING ? getPaddedBytes(plaintext) : plaintext.getBytes());
|
||||||
|
if (Config.PUT_AUTH_TAG_INTO_KEY && this.ciphertext != null) {
|
||||||
|
this.authtagPlusInnerKey = new byte[16 + 16];
|
||||||
|
byte[] ciphertext = new byte[this.ciphertext.length - 16];
|
||||||
|
System.arraycopy(this.ciphertext, 0, ciphertext, 0, ciphertext.length);
|
||||||
|
System.arraycopy(this.ciphertext, ciphertext.length, authtagPlusInnerKey, 16, 16);
|
||||||
|
System.arraycopy(this.innerKey, 0, authtagPlusInnerKey, 0, this.innerKey.length);
|
||||||
|
this.ciphertext = ciphertext;
|
||||||
|
}
|
||||||
|
} catch (NoSuchAlgorithmException | NoSuchPaddingException | InvalidKeyException
|
||||||
|
| IllegalBlockSizeException | BadPaddingException | NoSuchProviderException
|
||||||
|
| InvalidAlgorithmParameterException e) {
|
||||||
|
throw new CryptoFailedException(e);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
public Jid getFrom() {
|
||||||
|
return this.from;
|
||||||
|
}
|
||||||
|
|
||||||
|
int getSenderDeviceId() {
|
||||||
|
return sourceDeviceId;
|
||||||
|
}
|
||||||
|
|
||||||
|
void addDevice(XmppAxolotlSession session) {
|
||||||
|
addDevice(session, false);
|
||||||
|
}
|
||||||
|
|
||||||
|
void addDevice(XmppAxolotlSession session, boolean ignoreSessionTrust) {
|
||||||
|
XmppAxolotlSession.AxolotlKey key;
|
||||||
|
if (authtagPlusInnerKey != null) {
|
||||||
|
key = session.processSending(authtagPlusInnerKey, ignoreSessionTrust);
|
||||||
|
} else {
|
||||||
|
key = session.processSending(innerKey, ignoreSessionTrust);
|
||||||
|
}
|
||||||
|
if (key != null) {
|
||||||
|
keys.add(key);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
public byte[] getInnerKey() {
|
||||||
|
return innerKey;
|
||||||
|
}
|
||||||
|
|
||||||
|
public byte[] getIV() {
|
||||||
|
return this.iv;
|
||||||
|
}
|
||||||
|
|
||||||
|
public Element toElement() {
|
||||||
|
Element encryptionElement = new Element(CONTAINERTAG, AxolotlService.PEP_PREFIX);
|
||||||
|
Element headerElement = encryptionElement.addChild(HEADER);
|
||||||
|
headerElement.setAttribute(SOURCEID, sourceDeviceId);
|
||||||
|
for (XmppAxolotlSession.AxolotlKey key : keys) {
|
||||||
|
Element keyElement = new Element(KEYTAG);
|
||||||
|
keyElement.setAttribute(REMOTEID, key.deviceId);
|
||||||
|
if (key.prekey) {
|
||||||
|
keyElement.setAttribute("prekey", "true");
|
||||||
|
}
|
||||||
|
keyElement.setContent(Base64.encodeToString(key.key, Base64.NO_WRAP));
|
||||||
|
headerElement.addChild(keyElement);
|
||||||
|
}
|
||||||
|
headerElement.addChild(IVTAG).setContent(Base64.encodeToString(iv, Base64.NO_WRAP));
|
||||||
|
if (ciphertext != null) {
|
||||||
|
Element payload = encryptionElement.addChild(PAYLOAD);
|
||||||
|
payload.setContent(Base64.encodeToString(ciphertext, Base64.NO_WRAP));
|
||||||
|
}
|
||||||
|
return encryptionElement;
|
||||||
|
}
|
||||||
|
|
||||||
|
private byte[] unpackKey(XmppAxolotlSession session, Integer sourceDeviceId) throws CryptoFailedException {
|
||||||
|
ArrayList<XmppAxolotlSession.AxolotlKey> possibleKeys = new ArrayList<>();
|
||||||
|
for (XmppAxolotlSession.AxolotlKey key : keys) {
|
||||||
|
if (key.deviceId == sourceDeviceId) {
|
||||||
|
possibleKeys.add(key);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (possibleKeys.size() == 0) {
|
||||||
|
throw new NotEncryptedForThisDeviceException();
|
||||||
|
}
|
||||||
|
return session.processReceiving(possibleKeys);
|
||||||
|
}
|
||||||
|
|
||||||
|
XmppAxolotlKeyTransportMessage getParameters(XmppAxolotlSession session, Integer sourceDeviceId) throws CryptoFailedException {
|
||||||
|
return new XmppAxolotlKeyTransportMessage(session.getFingerprint(), unpackKey(session, sourceDeviceId), getIV());
|
||||||
|
}
|
||||||
|
|
||||||
|
public XmppAxolotlPlaintextMessage decrypt(XmppAxolotlSession session, Integer sourceDeviceId) throws CryptoFailedException {
|
||||||
|
XmppAxolotlPlaintextMessage plaintextMessage = null;
|
||||||
|
byte[] key = unpackKey(session, sourceDeviceId);
|
||||||
|
if (key != null) {
|
||||||
|
try {
|
||||||
|
if (key.length < 32) {
|
||||||
|
throw new OutdatedSenderException("Key did not contain auth tag. Sender needs to update their OMEMO client");
|
||||||
|
}
|
||||||
|
final int authTagLength = key.length - 16;
|
||||||
|
byte[] newCipherText = new byte[key.length - 16 + ciphertext.length];
|
||||||
|
byte[] newKey = new byte[16];
|
||||||
|
System.arraycopy(ciphertext, 0, newCipherText, 0, ciphertext.length);
|
||||||
|
System.arraycopy(key, 16, newCipherText, ciphertext.length, authTagLength);
|
||||||
|
System.arraycopy(key, 0, newKey, 0, newKey.length);
|
||||||
|
ciphertext = newCipherText;
|
||||||
|
key = newKey;
|
||||||
|
|
||||||
|
final Cipher cipher = Compatibility.twentyEight() ? Cipher.getInstance(CIPHERMODE) : Cipher.getInstance(CIPHERMODE, PROVIDER);
|
||||||
|
SecretKeySpec keySpec = new SecretKeySpec(key, KEYTYPE);
|
||||||
|
IvParameterSpec ivSpec = new IvParameterSpec(iv);
|
||||||
|
|
||||||
|
cipher.init(Cipher.DECRYPT_MODE, keySpec, ivSpec);
|
||||||
|
|
||||||
|
String plaintext = new String(cipher.doFinal(ciphertext));
|
||||||
|
plaintextMessage = new XmppAxolotlPlaintextMessage(Config.OMEMO_PADDING ? plaintext.trim() : plaintext, session.getFingerprint());
|
||||||
|
|
||||||
|
} catch (NoSuchAlgorithmException | NoSuchPaddingException | InvalidKeyException
|
||||||
|
| InvalidAlgorithmParameterException | IllegalBlockSizeException
|
||||||
|
| BadPaddingException | NoSuchProviderException e) {
|
||||||
|
throw new CryptoFailedException(e);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return plaintextMessage;
|
||||||
|
}
|
||||||
|
|
||||||
public static class XmppAxolotlPlaintextMessage {
|
public static class XmppAxolotlPlaintextMessage {
|
||||||
private final String plaintext;
|
private final String plaintext;
|
||||||
|
@ -89,233 +316,4 @@ public class XmppAxolotlMessage {
|
||||||
return iv;
|
return iv;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
public static int parseSourceId(final Element axolotlMessage) throws IllegalArgumentException {
|
|
||||||
final Element header = axolotlMessage.findChild(HEADER);
|
|
||||||
if (header == null) {
|
|
||||||
throw new IllegalArgumentException("No header found");
|
|
||||||
}
|
|
||||||
try {
|
|
||||||
return Integer.parseInt(header.getAttribute(SOURCEID));
|
|
||||||
} catch (NumberFormatException e) {
|
|
||||||
throw new IllegalArgumentException("invalid source id");
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
private XmppAxolotlMessage(final Element axolotlMessage, final Jid from) throws IllegalArgumentException {
|
|
||||||
this.from = from;
|
|
||||||
Element header = axolotlMessage.findChild(HEADER);
|
|
||||||
try {
|
|
||||||
this.sourceDeviceId = Integer.parseInt(header.getAttribute(SOURCEID));
|
|
||||||
} catch (NumberFormatException e) {
|
|
||||||
throw new IllegalArgumentException("invalid source id");
|
|
||||||
}
|
|
||||||
List<Element> keyElements = header.getChildren();
|
|
||||||
this.keys = new ArrayList<>();
|
|
||||||
for (Element keyElement : keyElements) {
|
|
||||||
switch (keyElement.getName()) {
|
|
||||||
case KEYTAG:
|
|
||||||
try {
|
|
||||||
Integer recipientId = Integer.parseInt(keyElement.getAttribute(REMOTEID));
|
|
||||||
byte[] key = Base64.decode(keyElement.getContent().trim(), Base64.DEFAULT);
|
|
||||||
boolean isPreKey =keyElement.getAttributeAsBoolean("prekey");
|
|
||||||
this.keys.add(new XmppAxolotlSession.AxolotlKey(recipientId, key,isPreKey));
|
|
||||||
} catch (NumberFormatException e) {
|
|
||||||
throw new IllegalArgumentException("invalid remote id");
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
case IVTAG:
|
|
||||||
if (this.iv != null) {
|
|
||||||
throw new IllegalArgumentException("Duplicate iv entry");
|
|
||||||
}
|
|
||||||
iv = Base64.decode(keyElement.getContent().trim(), Base64.DEFAULT);
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
Log.w(Config.LOGTAG, "Unexpected element in header: " + keyElement.toString());
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
final Element payloadElement = axolotlMessage.findChildEnsureSingle(PAYLOAD, AxolotlService.PEP_PREFIX);
|
|
||||||
if (payloadElement != null) {
|
|
||||||
ciphertext = Base64.decode(payloadElement.getContent().trim(), Base64.DEFAULT);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
XmppAxolotlMessage(Jid from, int sourceDeviceId) {
|
|
||||||
this.from = from;
|
|
||||||
this.sourceDeviceId = sourceDeviceId;
|
|
||||||
this.keys = new ArrayList<>();
|
|
||||||
this.iv = generateIv();
|
|
||||||
this.innerKey = generateKey();
|
|
||||||
}
|
|
||||||
|
|
||||||
public static XmppAxolotlMessage fromElement(Element element, Jid from) {
|
|
||||||
return new XmppAxolotlMessage(element, from);
|
|
||||||
}
|
|
||||||
|
|
||||||
private static byte[] generateKey() {
|
|
||||||
try {
|
|
||||||
KeyGenerator generator = KeyGenerator.getInstance(KEYTYPE);
|
|
||||||
generator.init(128);
|
|
||||||
return generator.generateKey().getEncoded();
|
|
||||||
} catch (NoSuchAlgorithmException e) {
|
|
||||||
Log.e(Config.LOGTAG, e.getMessage());
|
|
||||||
return null;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
private static byte[] generateIv() {
|
|
||||||
final SecureRandom random = new SecureRandom();
|
|
||||||
byte[] iv = new byte[Config.TWELVE_BYTE_IV ? 12 : 16];
|
|
||||||
random.nextBytes(iv);
|
|
||||||
return iv;
|
|
||||||
}
|
|
||||||
|
|
||||||
public boolean hasPayload() {
|
|
||||||
return ciphertext != null;
|
|
||||||
}
|
|
||||||
|
|
||||||
void encrypt(String plaintext) throws CryptoFailedException {
|
|
||||||
try {
|
|
||||||
SecretKey secretKey = new SecretKeySpec(innerKey, KEYTYPE);
|
|
||||||
IvParameterSpec ivSpec = new IvParameterSpec(iv);
|
|
||||||
Cipher cipher = Compatibility.twentyEight() ? Cipher.getInstance(CIPHERMODE) : Cipher.getInstance(CIPHERMODE, PROVIDER);
|
|
||||||
cipher.init(Cipher.ENCRYPT_MODE, secretKey, ivSpec);
|
|
||||||
this.ciphertext = cipher.doFinal(Config.OMEMO_PADDING ? getPaddedBytes(plaintext) : plaintext.getBytes());
|
|
||||||
if (Config.PUT_AUTH_TAG_INTO_KEY && this.ciphertext != null) {
|
|
||||||
this.authtagPlusInnerKey = new byte[16+16];
|
|
||||||
byte[] ciphertext = new byte[this.ciphertext.length - 16];
|
|
||||||
System.arraycopy(this.ciphertext,0,ciphertext,0,ciphertext.length);
|
|
||||||
System.arraycopy(this.ciphertext,ciphertext.length,authtagPlusInnerKey,16,16);
|
|
||||||
System.arraycopy(this.innerKey,0,authtagPlusInnerKey,0,this.innerKey.length);
|
|
||||||
this.ciphertext = ciphertext;
|
|
||||||
}
|
|
||||||
} catch (NoSuchAlgorithmException | NoSuchPaddingException | InvalidKeyException
|
|
||||||
| IllegalBlockSizeException | BadPaddingException | NoSuchProviderException
|
|
||||||
| InvalidAlgorithmParameterException e) {
|
|
||||||
throw new CryptoFailedException(e);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
private static byte[] getPaddedBytes(String plaintext) {
|
|
||||||
int plainLength = plaintext.getBytes().length;
|
|
||||||
int pad = Math.max(64,(plainLength / 32 + 1) * 32) - plainLength;
|
|
||||||
SecureRandom random = new SecureRandom();
|
|
||||||
int left = random.nextInt(pad);
|
|
||||||
int right = pad - left;
|
|
||||||
StringBuilder builder = new StringBuilder(plaintext);
|
|
||||||
for(int i = 0; i < left; ++i) {
|
|
||||||
builder.insert(0,random.nextBoolean() ? "\t" : " ");
|
|
||||||
}
|
|
||||||
for(int i = 0; i < right; ++i) {
|
|
||||||
builder.append(random.nextBoolean() ? "\t" : " ");
|
|
||||||
}
|
|
||||||
return builder.toString().getBytes();
|
|
||||||
}
|
|
||||||
|
|
||||||
public Jid getFrom() {
|
|
||||||
return this.from;
|
|
||||||
}
|
|
||||||
|
|
||||||
int getSenderDeviceId() {
|
|
||||||
return sourceDeviceId;
|
|
||||||
}
|
|
||||||
|
|
||||||
void addDevice(XmppAxolotlSession session) {
|
|
||||||
addDevice(session, false);
|
|
||||||
}
|
|
||||||
|
|
||||||
void addDevice(XmppAxolotlSession session, boolean ignoreSessionTrust) {
|
|
||||||
XmppAxolotlSession.AxolotlKey key;
|
|
||||||
if (authtagPlusInnerKey != null) {
|
|
||||||
key = session.processSending(authtagPlusInnerKey, ignoreSessionTrust);
|
|
||||||
} else {
|
|
||||||
key = session.processSending(innerKey, ignoreSessionTrust);
|
|
||||||
}
|
|
||||||
if (key != null) {
|
|
||||||
keys.add(key);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
public byte[] getInnerKey() {
|
|
||||||
return innerKey;
|
|
||||||
}
|
|
||||||
|
|
||||||
public byte[] getIV() {
|
|
||||||
return this.iv;
|
|
||||||
}
|
|
||||||
|
|
||||||
public Element toElement() {
|
|
||||||
Element encryptionElement = new Element(CONTAINERTAG, AxolotlService.PEP_PREFIX);
|
|
||||||
Element headerElement = encryptionElement.addChild(HEADER);
|
|
||||||
headerElement.setAttribute(SOURCEID, sourceDeviceId);
|
|
||||||
for(XmppAxolotlSession.AxolotlKey key : keys) {
|
|
||||||
Element keyElement = new Element(KEYTAG);
|
|
||||||
keyElement.setAttribute(REMOTEID, key.deviceId);
|
|
||||||
if (key.prekey) {
|
|
||||||
keyElement.setAttribute("prekey","true");
|
|
||||||
}
|
|
||||||
keyElement.setContent(Base64.encodeToString(key.key, Base64.NO_WRAP));
|
|
||||||
headerElement.addChild(keyElement);
|
|
||||||
}
|
|
||||||
headerElement.addChild(IVTAG).setContent(Base64.encodeToString(iv, Base64.NO_WRAP));
|
|
||||||
if (ciphertext != null) {
|
|
||||||
Element payload = encryptionElement.addChild(PAYLOAD);
|
|
||||||
payload.setContent(Base64.encodeToString(ciphertext, Base64.NO_WRAP));
|
|
||||||
}
|
|
||||||
return encryptionElement;
|
|
||||||
}
|
|
||||||
|
|
||||||
private byte[] unpackKey(XmppAxolotlSession session, Integer sourceDeviceId) throws CryptoFailedException {
|
|
||||||
ArrayList<XmppAxolotlSession.AxolotlKey> possibleKeys = new ArrayList<>();
|
|
||||||
for(XmppAxolotlSession.AxolotlKey key : keys) {
|
|
||||||
if (key.deviceId == sourceDeviceId) {
|
|
||||||
possibleKeys.add(key);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
if (possibleKeys.size() == 0) {
|
|
||||||
throw new NotEncryptedForThisDeviceException();
|
|
||||||
}
|
|
||||||
return session.processReceiving(possibleKeys);
|
|
||||||
}
|
|
||||||
|
|
||||||
XmppAxolotlKeyTransportMessage getParameters(XmppAxolotlSession session, Integer sourceDeviceId) throws CryptoFailedException {
|
|
||||||
return new XmppAxolotlKeyTransportMessage(session.getFingerprint(), unpackKey(session, sourceDeviceId), getIV());
|
|
||||||
}
|
|
||||||
|
|
||||||
public XmppAxolotlPlaintextMessage decrypt(XmppAxolotlSession session, Integer sourceDeviceId) throws CryptoFailedException {
|
|
||||||
XmppAxolotlPlaintextMessage plaintextMessage = null;
|
|
||||||
byte[] key = unpackKey(session, sourceDeviceId);
|
|
||||||
if (key != null) {
|
|
||||||
try {
|
|
||||||
//TODO remove support for *not* having auth tag in key
|
|
||||||
if (key.length >= 32) {
|
|
||||||
int authtaglength = key.length - 16;
|
|
||||||
Log.d(Config.LOGTAG,"found auth tag as part of omemo key");
|
|
||||||
byte[] newCipherText = new byte[key.length - 16 + ciphertext.length];
|
|
||||||
byte[] newKey = new byte[16];
|
|
||||||
System.arraycopy(ciphertext, 0, newCipherText, 0, ciphertext.length);
|
|
||||||
System.arraycopy(key, 16, newCipherText, ciphertext.length, authtaglength);
|
|
||||||
System.arraycopy(key,0,newKey,0,newKey.length);
|
|
||||||
ciphertext = newCipherText;
|
|
||||||
key = newKey;
|
|
||||||
}
|
|
||||||
|
|
||||||
Cipher cipher = Compatibility.twentyEight() ? Cipher.getInstance(CIPHERMODE) : Cipher.getInstance(CIPHERMODE, PROVIDER);
|
|
||||||
SecretKeySpec keySpec = new SecretKeySpec(key, KEYTYPE);
|
|
||||||
IvParameterSpec ivSpec = new IvParameterSpec(iv);
|
|
||||||
|
|
||||||
cipher.init(Cipher.DECRYPT_MODE, keySpec, ivSpec);
|
|
||||||
|
|
||||||
String plaintext = new String(cipher.doFinal(ciphertext));
|
|
||||||
plaintextMessage = new XmppAxolotlPlaintextMessage(Config.OMEMO_PADDING ? plaintext.trim() : plaintext, session.getFingerprint());
|
|
||||||
|
|
||||||
} catch (NoSuchAlgorithmException | NoSuchPaddingException | InvalidKeyException
|
|
||||||
| InvalidAlgorithmParameterException | IllegalBlockSizeException
|
|
||||||
| BadPaddingException | NoSuchProviderException e) {
|
|
||||||
throw new CryptoFailedException(e);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
return plaintextMessage;
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
|
|
|
@ -76,8 +76,8 @@ public class Conversation extends AbstractEntity implements Blockable, Comparabl
|
||||||
private Jid nextCounterpart;
|
private Jid nextCounterpart;
|
||||||
private transient MucOptions mucOptions = null;
|
private transient MucOptions mucOptions = null;
|
||||||
private boolean messagesLeftOnServer = true;
|
private boolean messagesLeftOnServer = true;
|
||||||
private ChatState mOutgoingChatState = Config.DEFAULT_CHATSTATE;
|
private ChatState mOutgoingChatState = Config.DEFAULT_CHAT_STATE;
|
||||||
private ChatState mIncomingChatState = Config.DEFAULT_CHATSTATE;
|
private ChatState mIncomingChatState = Config.DEFAULT_CHAT_STATE;
|
||||||
private String mFirstMamReference = null;
|
private String mFirstMamReference = null;
|
||||||
|
|
||||||
public Conversation(final String name, final Account account, final Jid contactJid,
|
public Conversation(final String name, final Account account, final Jid contactJid,
|
||||||
|
|
|
@ -94,7 +94,7 @@ public class MucOptions {
|
||||||
public void resetChatState() {
|
public void resetChatState() {
|
||||||
synchronized (users) {
|
synchronized (users) {
|
||||||
for (User user : users) {
|
for (User user : users) {
|
||||||
user.chatState = Config.DEFAULT_CHATSTATE;
|
user.chatState = Config.DEFAULT_CHAT_STATE;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
@ -746,7 +746,7 @@ public class MucOptions {
|
||||||
private long pgpKeyId = 0;
|
private long pgpKeyId = 0;
|
||||||
private Avatar avatar;
|
private Avatar avatar;
|
||||||
private MucOptions options;
|
private MucOptions options;
|
||||||
private ChatState chatState = Config.DEFAULT_CHATSTATE;
|
private ChatState chatState = Config.DEFAULT_CHAT_STATE;
|
||||||
|
|
||||||
public User(MucOptions options, Jid fullJid) {
|
public User(MucOptions options, Jid fullJid) {
|
||||||
this.options = options;
|
this.options = options;
|
||||||
|
|
|
@ -19,6 +19,7 @@ import eu.siacs.conversations.R;
|
||||||
import eu.siacs.conversations.crypto.axolotl.AxolotlService;
|
import eu.siacs.conversations.crypto.axolotl.AxolotlService;
|
||||||
import eu.siacs.conversations.crypto.axolotl.BrokenSessionException;
|
import eu.siacs.conversations.crypto.axolotl.BrokenSessionException;
|
||||||
import eu.siacs.conversations.crypto.axolotl.NotEncryptedForThisDeviceException;
|
import eu.siacs.conversations.crypto.axolotl.NotEncryptedForThisDeviceException;
|
||||||
|
import eu.siacs.conversations.crypto.axolotl.OutdatedSenderException;
|
||||||
import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage;
|
import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage;
|
||||||
import eu.siacs.conversations.entities.Account;
|
import eu.siacs.conversations.entities.Account;
|
||||||
import eu.siacs.conversations.entities.Bookmark;
|
import eu.siacs.conversations.entities.Bookmark;
|
||||||
|
@ -140,6 +141,8 @@ public class MessageParser extends AbstractParser implements OnMessagePacketRece
|
||||||
}
|
}
|
||||||
} catch (NotEncryptedForThisDeviceException e) {
|
} catch (NotEncryptedForThisDeviceException e) {
|
||||||
return new Message(conversation, "", Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE, status);
|
return new Message(conversation, "", Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE, status);
|
||||||
|
} catch (OutdatedSenderException e) {
|
||||||
|
return new Message(conversation, "", Message.ENCRYPTION_AXOLOTL_FAILED, status);
|
||||||
}
|
}
|
||||||
if (plaintextMessage != null) {
|
if (plaintextMessage != null) {
|
||||||
Message finishedMessage = new Message(conversation, plaintextMessage.getPlaintext(), Message.ENCRYPTION_AXOLOTL, status);
|
Message finishedMessage = new Message(conversation, plaintextMessage.getPlaintext(), Message.ENCRYPTION_AXOLOTL, status);
|
||||||
|
|
|
@ -34,7 +34,6 @@ import android.provider.ContactsContract;
|
||||||
import android.security.KeyChain;
|
import android.security.KeyChain;
|
||||||
import android.support.annotation.BoolRes;
|
import android.support.annotation.BoolRes;
|
||||||
import android.support.annotation.IntegerRes;
|
import android.support.annotation.IntegerRes;
|
||||||
import android.support.annotation.NonNull;
|
|
||||||
import android.support.v4.app.RemoteInput;
|
import android.support.v4.app.RemoteInput;
|
||||||
import android.support.v4.content.ContextCompat;
|
import android.support.v4.content.ContextCompat;
|
||||||
import android.text.TextUtils;
|
import android.text.TextUtils;
|
||||||
|
@ -1515,7 +1514,7 @@ public class XmppConnectionService extends Service {
|
||||||
if (delay) {
|
if (delay) {
|
||||||
mMessageGenerator.addDelay(packet, message.getTimeSent());
|
mMessageGenerator.addDelay(packet, message.getTimeSent());
|
||||||
}
|
}
|
||||||
if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
|
if (conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
|
||||||
if (this.sendChatStates()) {
|
if (this.sendChatStates()) {
|
||||||
packet.addChild(ChatState.toElement(conversation.getOutgoingChatState()));
|
packet.addChild(ChatState.toElement(conversation.getOutgoingChatState()));
|
||||||
}
|
}
|
||||||
|
@ -2514,7 +2513,7 @@ public class XmppConnectionService extends Service {
|
||||||
if (conversation.getMode() == Conversation.MODE_MULTI) {
|
if (conversation.getMode() == Conversation.MODE_MULTI) {
|
||||||
conversation.getMucOptions().resetChatState();
|
conversation.getMucOptions().resetChatState();
|
||||||
} else {
|
} else {
|
||||||
conversation.setIncomingChatState(Config.DEFAULT_CHATSTATE);
|
conversation.setIncomingChatState(Config.DEFAULT_CHAT_STATE);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
for (Account account : getAccounts()) {
|
for (Account account : getAccounts()) {
|
||||||
|
|
|
@ -1721,7 +1721,7 @@ public class ConversationFragment extends XmppFragment implements EditMessage.Ke
|
||||||
}
|
}
|
||||||
|
|
||||||
public void privateMessageWith(final Jid counterpart) {
|
public void privateMessageWith(final Jid counterpart) {
|
||||||
if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
|
if (conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
|
||||||
activity.xmppConnectionService.sendChatState(conversation);
|
activity.xmppConnectionService.sendChatState(conversation);
|
||||||
}
|
}
|
||||||
this.binding.textinput.setText("");
|
this.binding.textinput.setText("");
|
||||||
|
@ -1859,7 +1859,7 @@ public class ConversationFragment extends XmppFragment implements EditMessage.Ke
|
||||||
}
|
}
|
||||||
|
|
||||||
private void updateChatState(final Conversation conversation, final String msg) {
|
private void updateChatState(final Conversation conversation, final String msg) {
|
||||||
ChatState state = msg.length() == 0 ? Config.DEFAULT_CHATSTATE : ChatState.PAUSED;
|
ChatState state = msg.length() == 0 ? Config.DEFAULT_CHAT_STATE : ChatState.PAUSED;
|
||||||
Account.State status = conversation.getAccount().getStatus();
|
Account.State status = conversation.getAccount().getStatus();
|
||||||
if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
|
if (status == Account.State.ONLINE && conversation.setOutgoingChatState(state)) {
|
||||||
activity.xmppConnectionService.sendChatState(conversation);
|
activity.xmppConnectionService.sendChatState(conversation);
|
||||||
|
@ -2619,7 +2619,7 @@ public class ConversationFragment extends XmppFragment implements EditMessage.Ke
|
||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
Account.State status = conversation.getAccount().getStatus();
|
Account.State status = conversation.getAccount().getStatus();
|
||||||
if (status == Account.State.ONLINE && conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
|
if (status == Account.State.ONLINE && conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
|
||||||
service.sendChatState(conversation);
|
service.sendChatState(conversation);
|
||||||
}
|
}
|
||||||
if (storeNextMessage()) {
|
if (storeNextMessage()) {
|
||||||
|
|
|
@ -31,7 +31,7 @@
|
||||||
<resources>
|
<resources>
|
||||||
<string name="pref_about_message" translatable="false">
|
<string name="pref_about_message" translatable="false">
|
||||||
Conversations • the very last word in instant messaging.
|
Conversations • the very last word in instant messaging.
|
||||||
\n\nCopyright © 2014-2019 Daniel Gultsch
|
\n\nCopyright © 2014-2020 Daniel Gultsch
|
||||||
\n\nThis program is free software: you can redistribute it and/or modify
|
\n\nThis program is free software: you can redistribute it and/or modify
|
||||||
it under the terms of the GNU General Public License as published by
|
it under the terms of the GNU General Public License as published by
|
||||||
the Free Software Foundation, either version 3 of the License, or
|
the Free Software Foundation, either version 3 of the License, or
|
||||||
|
|
Loading…
Reference in a new issue