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https://github.com/oxen-io/session-android.git
synced 2024-12-24 16:57:50 +00:00
Stop relying on SignalServiceEnvelope and instead use SignalServiceContent to determine message sender and friend request
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@ -30,12 +30,7 @@ public class UnidentifiedAccessUtil {
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private static final String TAG = UnidentifiedAccessUtil.class.getSimpleName();
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public static CertificateValidator getCertificateValidator() {
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try {
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ECPublicKey unidentifiedSenderTrustRoot = Curve.decodePoint(Base64.decode(BuildConfig.UNIDENTIFIED_SENDER_TRUST_ROOT), 0);
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return new CertificateValidator(unidentifiedSenderTrustRoot);
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} catch (InvalidKeyException | IOException e) {
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throw new AssertionError(e);
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}
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return new CertificateValidator();
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}
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@WorkerThread
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@ -274,18 +274,14 @@ public class PushDecryptJob extends BaseJob implements InjectableType {
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SignalServiceAddress localAddress = new SignalServiceAddress(TextSecurePreferences.getLocalNumber(context));
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LokiServiceCipher cipher = new LokiServiceCipher(localAddress, axolotlStore, lokiThreadDatabase, lokiPreKeyRecordDatabase, UnidentifiedAccessUtil.getCertificateValidator());
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// Loki - Handle session reset logic
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if (!envelope.isFriendRequest() && cipher.getSessionStatus(envelope) == null && envelope.isPreKeySignalMessage()) {
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cipher.validateBackgroundMessage(envelope, envelope.getContent());
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}
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SignalServiceContent content = cipher.decrypt(envelope);
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// Loki - Ignore any friend requests that we got before restoration
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if (envelope.isFriendRequest() && envelope.getTimestamp() < TextSecurePreferences.getRestorationTime(context)) {
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if (content.isFriendRequest() && content.getTimestamp() < TextSecurePreferences.getRestorationTime(context)) {
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Log.d("Loki", "Ignoring friend request received before restoration.");
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return;
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}
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SignalServiceContent content = cipher.decrypt(envelope);
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if (shouldIgnore(content)) {
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Log.i(TAG, "Ignoring message.");
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@ -293,12 +289,12 @@ public class PushDecryptJob extends BaseJob implements InjectableType {
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}
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// Loki - Handle friend request acceptance if needed
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acceptFriendRequestIfNeeded(envelope, content);
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acceptFriendRequestIfNeeded(content);
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// Loki - Store pre key bundle
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// We shouldn't store it if it's a pairing message
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if (!content.getPairingAuthorisation().isPresent()) {
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storePreKeyBundleIfNeeded(envelope, content);
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storePreKeyBundleIfNeeded(content);
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}
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if (content.lokiServiceMessage.isPresent()) {
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@ -313,24 +309,24 @@ public class PushDecryptJob extends BaseJob implements InjectableType {
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if (rawSenderDisplayName.isPresent() && rawSenderDisplayName.get().length() > 0) {
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// If we got a name from our primary device then we set our profile name to match it
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String ourPrimaryDevice = TextSecurePreferences.getMasterHexEncodedPublicKey(context);
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if (ourPrimaryDevice != null && envelope.getSource().equals(ourPrimaryDevice)) {
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if (ourPrimaryDevice != null && content.getSender().equals(ourPrimaryDevice)) {
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TextSecurePreferences.setProfileName(context, rawSenderDisplayName.get());
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}
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// If we receive a message from our device then don't set the display name in the database (as we probably have a alias set for them)
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MultiDeviceUtilities.isOneOfOurDevices(context, Address.fromSerialized(content.getSender())).success(isOneOfOurDevice -> {
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if (!isOneOfOurDevice) { setDisplayName(envelope.getSource(), rawSenderDisplayName.get()); }
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if (!isOneOfOurDevice) { setDisplayName(content.getSender(), rawSenderDisplayName.get()); }
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return Unit.INSTANCE;
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});
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}
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if (content.getPairingAuthorisation().isPresent()) {
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handlePairingMessage(content.getPairingAuthorisation().get(), envelope, content);
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handlePairingMessage(content.getPairingAuthorisation().get(), content);
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} else if (content.getDataMessage().isPresent()) {
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SignalServiceDataMessage message = content.getDataMessage().get();
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boolean isMediaMessage = message.getAttachments().isPresent() || message.getQuote().isPresent() || message.getSharedContacts().isPresent() || message.getPreviews().isPresent() || message.getSticker().isPresent();
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if (!envelope.isFriendRequest() && message.isUnpairingRequest()) {
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if (!content.isFriendRequest() && message.isUnpairingRequest()) {
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// Make sure we got the request from our primary device
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String ourPrimaryDevice = TextSecurePreferences.getMasterHexEncodedPublicKey(context);
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if (ourPrimaryDevice != null && ourPrimaryDevice.equals(content.getSender())) {
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@ -363,7 +359,7 @@ public class PushDecryptJob extends BaseJob implements InjectableType {
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}
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// Loki - Handle friend request logic if needed
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updateFriendRequestStatusIfNeeded(envelope, content, message);
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updateFriendRequestStatusIfNeeded(content, message);
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}
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} else if (content.getSyncMessage().isPresent()) {
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TextSecurePreferences.setMultiDevice(context, true);
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@ -404,8 +400,8 @@ public class PushDecryptJob extends BaseJob implements InjectableType {
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}
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// Loki - Handle session reset logic
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if (!envelope.isFriendRequest()) {
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cipher.handleSessionResetRequestIfNeeded(envelope, cipher.getSessionStatus(envelope));
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if (!content.isFriendRequest()) {
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cipher.handleSessionResetRequestIfNeeded(content, cipher.getSessionStatus(content));
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}
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} catch (ProtocolInvalidVersionException e) {
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Log.w(TAG, e);
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@ -1109,26 +1105,26 @@ public class PushDecryptJob extends BaseJob implements InjectableType {
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ApplicationContext.getInstance(context).getJobManager().add(new RetrieveProfileAvatarJob(primaryDevice, url));
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}
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private void handlePairingMessage(@NonNull PairingAuthorisation authorisation, @NonNull SignalServiceEnvelope envelope, @NonNull SignalServiceContent content) {
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private void handlePairingMessage(@NonNull PairingAuthorisation authorisation, @NonNull SignalServiceContent content) {
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String userHexEncodedPublicKey = TextSecurePreferences.getLocalNumber(context);
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if (authorisation.getType() == PairingAuthorisation.Type.REQUEST) {
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handlePairingRequestMessage(authorisation, envelope, content);
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handlePairingRequestMessage(authorisation, content);
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} else if (authorisation.getSecondaryDevicePublicKey().equals(userHexEncodedPublicKey)) {
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handlePairingAuthorisationMessage(authorisation, envelope, content);
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handlePairingAuthorisationMessage(authorisation, content);
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}
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}
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private void handlePairingRequestMessage(@NonNull PairingAuthorisation authorisation, @NonNull SignalServiceEnvelope envelope, @NonNull SignalServiceContent content) {
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private void handlePairingRequestMessage(@NonNull PairingAuthorisation authorisation, @NonNull SignalServiceContent content) {
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boolean isValid = isValidPairingMessage(authorisation);
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DeviceLinkingSession linkingSession = DeviceLinkingSession.Companion.getShared();
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if (isValid && linkingSession.isListeningForLinkingRequests()) {
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// Loki - If we successfully received a request then we should store the PreKeyBundle
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storePreKeyBundleIfNeeded(envelope, content);
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storePreKeyBundleIfNeeded(content);
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linkingSession.processLinkingRequest(authorisation);
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}
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}
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private void handlePairingAuthorisationMessage(@NonNull PairingAuthorisation authorisation, @NonNull SignalServiceEnvelope envelope, @NonNull SignalServiceContent content) {
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private void handlePairingAuthorisationMessage(@NonNull PairingAuthorisation authorisation, @NonNull SignalServiceContent content) {
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// Prepare
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boolean isSecondaryDevice = TextSecurePreferences.getMasterHexEncodedPublicKey(context) != null;
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if (isSecondaryDevice) {
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@ -1147,7 +1143,7 @@ public class PushDecryptJob extends BaseJob implements InjectableType {
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if (authorisation.getType() != PairingAuthorisation.Type.GRANT) { return; }
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Log.d("Loki", "Received pairing authorisation message from: " + authorisation.getPrimaryDevicePublicKey() + ".");
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// Save PreKeyBundle if for whatever reason we got one
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storePreKeyBundleIfNeeded(envelope, content);
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storePreKeyBundleIfNeeded(content);
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// Process
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DeviceLinkingSession.Companion.getShared().processLinkingAuthorization(authorisation);
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// Store the primary device's public key
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@ -1188,7 +1184,7 @@ public class PushDecryptJob extends BaseJob implements InjectableType {
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}
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}
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private void storePreKeyBundleIfNeeded(@NonNull SignalServiceEnvelope envelope, @NonNull SignalServiceContent content) {
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private void storePreKeyBundleIfNeeded(@NonNull SignalServiceContent content) {
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Recipient sender = Recipient.from(context, Address.fromSerialized(content.getSender()), false);
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if (!sender.isGroupRecipient() && content.lokiServiceMessage.isPresent()) {
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LokiServiceMessage lokiMessage = content.lokiServiceMessage.get();
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@ -1205,7 +1201,7 @@ public class PushDecryptJob extends BaseJob implements InjectableType {
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lokiPreKeyBundleDatabase.setPreKeyBundle(content.getSender(), preKeyBundle);
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// Loki - If we received a friend request, but we were already friends with this user, then reset the session
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if (envelope.isFriendRequest()) {
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if (content.isFriendRequest()) {
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long threadID = threadDatabase.getThreadIdIfExistsFor(sender);
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if (lokiThreadDatabase.getFriendRequestStatus(threadID) == LokiThreadFriendRequestStatus.FRIENDS) {
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resetSession(content.getSender(), threadID);
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@ -1218,9 +1214,9 @@ public class PushDecryptJob extends BaseJob implements InjectableType {
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}
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}
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private void acceptFriendRequestIfNeeded(@NonNull SignalServiceEnvelope envelope, @NonNull SignalServiceContent content) {
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private void acceptFriendRequestIfNeeded(@NonNull SignalServiceContent content) {
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// If we get anything other than a friend request, we can assume that we have a session with the other user
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if (envelope.isFriendRequest() || isGroupChatMessage(content)) { return; }
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if (content.isFriendRequest() || isGroupChatMessage(content)) { return; }
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becomeFriendsWithContact(content.getSender(), true);
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}
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@ -1251,8 +1247,8 @@ public class PushDecryptJob extends BaseJob implements InjectableType {
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});
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}
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private void updateFriendRequestStatusIfNeeded(@NonNull SignalServiceEnvelope envelope, @NonNull SignalServiceContent content, @NonNull SignalServiceDataMessage message) {
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if (!envelope.isFriendRequest() || message.isGroupUpdate()) { return; }
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private void updateFriendRequestStatusIfNeeded(@NonNull SignalServiceContent content, @NonNull SignalServiceDataMessage message) {
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if (!content.isFriendRequest() || message.isGroupUpdate()) { return; }
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// This handles the case where another user sends us a regular message without authorisation
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Promise<Boolean, Exception> promise = PromiseUtil.timeout(MultiDeviceUtilities.shouldAutomaticallyBecomeFriendsWithDevice(content.getSender(), context), 8000);
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boolean shouldBecomeFriends = PromiseUtil.get(promise, false);
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@ -164,7 +164,7 @@ class LokiPublicChatPoller(private val context: Context, private val group: Loki
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val senderPublicKey = primaryDevice ?: message.hexEncodedPublicKey
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val serviceDataMessage = getDataMessage(message)
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val serviceContent = SignalServiceContent(serviceDataMessage, senderPublicKey, SignalServiceAddress.DEFAULT_DEVICE_ID, message.timestamp, false)
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val serviceContent = SignalServiceContent(serviceDataMessage, senderPublicKey, SignalServiceAddress.DEFAULT_DEVICE_ID, message.timestamp, false, false)
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if (serviceDataMessage.quote.isPresent || (serviceDataMessage.attachments.isPresent && serviceDataMessage.attachments.get().size > 0) || serviceDataMessage.previews.isPresent) {
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PushDecryptJob(context).handleMediaMessage(serviceContent, serviceDataMessage, Optional.absent(), Optional.of(message.serverID))
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} else {
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@ -66,7 +66,7 @@ class LokiRSSFeedPoller(private val context: Context, private val feed: LokiRSSF
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val id = feed.id.toByteArray()
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val x1 = SignalServiceGroup(SignalServiceGroup.Type.UPDATE, id, null, null, null)
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val x2 = SignalServiceDataMessage(timestamp, x1, null, body)
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val x3 = SignalServiceContent(x2, "Loki", SignalServiceAddress.DEFAULT_DEVICE_ID, timestamp, false)
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val x3 = SignalServiceContent(x2, "Loki", SignalServiceAddress.DEFAULT_DEVICE_ID, timestamp, false, false)
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PushDecryptJob(context).handleTextMessage(x3, x2, Optional.absent(), Optional.absent())
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}
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} catch (exception: Exception) {
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@ -13,6 +13,7 @@ import org.thoughtcrime.securesms.ApplicationContext
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import org.thoughtcrime.securesms.crypto.IdentityKeyUtil
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import org.thoughtcrime.securesms.crypto.PreKeyUtil
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import org.thoughtcrime.securesms.crypto.ProfileKeyUtil
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import org.thoughtcrime.securesms.crypto.UnidentifiedAccessUtil
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import org.thoughtcrime.securesms.database.Address
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import org.thoughtcrime.securesms.database.DatabaseFactory
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import org.thoughtcrime.securesms.logging.Log
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@ -128,7 +129,8 @@ fun sendPairingAuthorisationMessage(context: Context, contactHexEncodedPublicKey
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return try {
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Log.d("Loki", "Sending authorisation message to: $contactHexEncodedPublicKey.")
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val result = messageSender.sendMessage(0, address, Optional.absent<UnidentifiedAccessPair>(), message.build())
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val udAccess = UnidentifiedAccessUtil.getAccessFor(context, Recipient.from(context, Address.fromSerialized(contactHexEncodedPublicKey), false))
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val result = messageSender.sendMessage(0, address, udAccess, message.build())
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if (result.success == null) {
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val exception = when {
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result.isNetworkFailure -> "Failed to send authorisation message due to a network error."
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@ -1,12 +1,15 @@
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package org.thoughtcrime.securesms.loki
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import org.thoughtcrime.securesms.ApplicationContext
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import org.thoughtcrime.securesms.crypto.UnidentifiedAccessUtil
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import org.thoughtcrime.securesms.database.Address
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import org.thoughtcrime.securesms.database.DatabaseFactory
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import org.thoughtcrime.securesms.jobmanager.Data
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import org.thoughtcrime.securesms.jobmanager.Job
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import org.thoughtcrime.securesms.jobmanager.impl.NetworkConstraint
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import org.thoughtcrime.securesms.jobs.BaseJob
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import org.thoughtcrime.securesms.logging.Log
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import org.thoughtcrime.securesms.recipients.Recipient
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import org.whispersystems.libsignal.util.guava.Optional
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import org.whispersystems.signalservice.api.crypto.UnidentifiedAccessPair
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import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage
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@ -99,7 +102,8 @@ class PushBackgroundMessageSendJob private constructor(
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val messageSender = ApplicationContext.getInstance(context).communicationModule.provideSignalMessageSender()
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val address = SignalServiceAddress(recipient)
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try {
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messageSender.sendMessage(-1, address, Optional.absent<UnidentifiedAccessPair>(), dataMessage.build()) // The message ID doesn't matter
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val udAccess = UnidentifiedAccessUtil.getAccessFor(context, Recipient.from(context, Address.fromSerialized(recipient), false))
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messageSender.sendMessage(-1, address, udAccess, dataMessage.build()) // The message ID doesn't matter
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} catch (e: Exception) {
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Log.d("Loki", "Failed to send background message to: ${recipient}.")
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throw e
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