private void handleEndSessionMessage(/*MasterSecretUnion masterSecret,*/
TextSecureEnvelope envelope,
TextSecureDataMessage message /*,
* Optional<Long> smsMessageId*/)
{
/*EncryptingSmsDatabase smsDatabase = DatabaseFactory.getEncryptingSmsDatabase(context);
* IncomingTextMessage incomingTextMessage = new IncomingTextMessage(envelope.getSource(),
* envelope.getSourceDevice(),
* (long)message.getTimestamp(),
* "", May<TextSecureGroup>.NoValue);
*
* long threadId;
*
* if (!smsMessageId.isPresent())
* {
* IncomingEndSessionMessage incomingEndSessionMessage = new IncomingEndSessionMessage(incomingTextMessage);
* Pair<Long, Long> messageAndThreadId = smsDatabase.insertMessageInbox(masterSecret, incomingEndSessionMessage);
*
* threadId = messageAndThreadId.second;
* }
* else
* {
* smsDatabase.markAsEndSession(smsMessageId.get());
* threadId = smsDatabase.getThreadIdForMessage(smsMessageId.get());
* }
*
* SessionStore sessionStore = new TextSecureSessionStore();
* sessionStore.deleteAllSessions(envelope.getSource());*/
//SecurityEvent.broadcastSecurityUpdateEvent(context, threadId);
//MessageNotifier.updateNotification(context, masterSecret.getMasterSecret().orNull(), threadId);
}
private void OnMessageRecevied(TextSecureMessagePipe sender, TextSecureEnvelope envelope)
{
var task = new PushContentReceiveTask();
task.handle(envelope, false);
//throw new NotImplementedException("OnMessageReceived");
}
private byte[] decrypt(TextSecureEnvelope envelope, byte[] ciphertext)
{
AxolotlAddress sourceAddress = new AxolotlAddress(envelope.getSource(), envelope.getSourceDevice());
SessionCipher sessionCipher = new SessionCipher(axolotlStore, sourceAddress);
byte[] paddedMessage;
if (envelope.isPreKeyWhisperMessage())
{
paddedMessage = sessionCipher.decrypt(new PreKeyWhisperMessage(ciphertext));
}
else if (envelope.isWhisperMessage())
{
paddedMessage = sessionCipher.decrypt(new WhisperMessage(ciphertext));
}
else
{
throw new InvalidMessageException("Unknown type: " + envelope.getType());
}
PushTransportDetails transportDetails = new PushTransportDetails(sessionCipher.getSessionVersion());
return(transportDetails.getStrippedPaddingMessageBody(paddedMessage));
}
/**
* Decrypt a received {@link org.whispersystems.textsecure.api.messages.TextSecureEnvelope}
*
* @param envelope The received TextSecureEnvelope
* @return a decrypted TextSecureMessage
* @throws InvalidVersionException
* @throws InvalidMessageException
* @throws InvalidKeyException
* @throws DuplicateMessageException
* @throws InvalidKeyIdException
* @throws UntrustedIdentityException
* @throws LegacyMessageException
* @throws NoSessionException
*/
public TextSecureContent decrypt(TextSecureEnvelope envelope)
{
try
{
TextSecureContent content = new TextSecureContent();
if (envelope.hasLegacyMessage())
{
DataMessage message = DataMessage.ParseFrom(decrypt(envelope, envelope.getLegacyMessage()));
content = new TextSecureContent(createTextSecureMessage(envelope, message));
}
else if (envelope.hasContent())
{
Content message = Content.ParseFrom(decrypt(envelope, envelope.getContent()));
if (message.HasDataMessage)
{
content = new TextSecureContent(createTextSecureMessage(envelope, message.DataMessage));
}
else if (message.HasSyncMessage && localAddress.getNumber().Equals(envelope.getSource()))
{
content = new TextSecureContent(createSynchronizeMessage(envelope, message.SyncMessage));
}
}
return(content);
}
catch (InvalidProtocolBufferException e)
{
throw new InvalidMessageException(e);
}
}
/*private void handleGroupMessage(@NonNull MasterSecretUnion masterSecret,
* @NonNull TextSecureEnvelope envelope,
* @NonNull TextSecureDataMessage message,
* @NonNull Optional<Long> smsMessageId)
* {
* GroupMessageProcessor.process(context, masterSecret, envelope, message);
*
* if (smsMessageId.isPresent())
* {
* DatabaseFactory.getSmsDatabase(context).deleteMessage(smsMessageId.get());
* }
* }
*
* private void handleSynchronizeSentMessage(@NonNull MasterSecretUnion masterSecret,
* @NonNull SentTranscriptMessage message,
* @NonNull Optional<Long> smsMessageId)
* throws MmsException
* {
* if (message.getMessage().getAttachments().isPresent()) {
* handleSynchronizeSentMediaMessage(masterSecret, message, smsMessageId);
* } else {
* handleSynchronizeSentTextMessage(masterSecret, message, smsMessageId);
* }
* }
*
* private void handleSynchronizeRequestMessage(@NonNull MasterSecretUnion masterSecret,
* @NonNull RequestMessage message)
* {
* if (message.isContactsRequest())
* {
* ApplicationContext.getInstance(context)
* .getJobManager()
* .add(new MultiDeviceContactUpdateJob(getContext()));
* }
*
* if (message.isGroupsRequest())
* {
* ApplicationContext.getInstance(context)
* .getJobManager()
* .add(new MultiDeviceGroupUpdateJob(getContext()));
* }
* }
*
* private void handleMediaMessage(@NonNull MasterSecretUnion masterSecret,
* @NonNull TextSecureEnvelope envelope,
* @NonNull TextSecureDataMessage message,
* @NonNull Optional<Long> smsMessageId)
* throws MmsException
* {
* MmsDatabase database = DatabaseFactory.getMmsDatabase(context);
* String localNumber = TextSecurePreferences.getLocalNumber(context);
* IncomingMediaMessage mediaMessage = new IncomingMediaMessage(masterSecret, envelope.getSource(),
* localNumber, message.getTimestamp(),
* Optional.fromNullable(envelope.getRelay()),
* message.getBody(),
* message.getGroupInfo(),
* message.getAttachments());
*
* Pair<Long, Long> messageAndThreadId = database.insertSecureDecryptedMessageInbox(masterSecret, mediaMessage, -1);
*
* ApplicationContext.getInstance(context)
* .getJobManager()
* .add(new AttachmentDownloadJob(context, messageAndThreadId.first));
*
* if (smsMessageId.isPresent()) {
* DatabaseFactory.getSmsDatabase(context).deleteMessage(smsMessageId.get());
* }
*
* MessageNotifier.updateNotification(context, masterSecret.getMasterSecret().orNull(), messageAndThreadId.second);
* }
*
* private void handleSynchronizeSentMediaMessage(@NonNull MasterSecretUnion masterSecret,
* @NonNull SentTranscriptMessage message,
* @NonNull Optional<Long> smsMessageId)
* throws MmsException
* {
* MmsDatabase database = DatabaseFactory.getMmsDatabase(context);
* Recipients recipients = getSyncMessageDestination(message);
* OutgoingMediaMessage mediaMessage = new OutgoingMediaMessage(context, masterSecret, recipients,
* message.getMessage().getAttachments().get(),
* message.getMessage().getBody().orNull());
*
* mediaMessage = new OutgoingSecureMediaMessage(mediaMessage);
*
* long threadId = DatabaseFactory.getThreadDatabase(context).getThreadIdFor(recipients);
* long messageId = database.insertMessageOutbox(masterSecret, mediaMessage, threadId, false, message.getTimestamp());
*
* database.markAsSent(messageId, "push".getBytes(), 0);
* database.markAsPush(messageId);
*
* ApplicationContext.getInstance(context)
* .getJobManager()
* .add(new AttachmentDownloadJob(context, messageId));
*
* if (smsMessageId.isPresent())
* {
* DatabaseFactory.getSmsDatabase(context).deleteMessage(smsMessageId.get());
* }
* }
*/
private void handleTextMessage(/*@NonNull MasterSecretUnion masterSecret,*/
TextSecureEnvelope envelope,
TextSecureDataMessage message /*,
* @NonNull Optional<Long> smsMessageId*/)
{
MessageDatabase database = DatabaseFactory.getMessageDatabase();
String body = message.getBody().HasValue ? message.getBody().ForceGetValue() : "";
/*Pair<Long, Long> messageAndThreadId;
*
* if (smsMessageId.hasValue)
* {
* messageAndThreadId = database.updateBundleMessageBody(masterSecret, smsMessageId.get(), body);
* }
* else
* {*/
IncomingTextMessage textMessage = new IncomingTextMessage(envelope.getSource(),
envelope.getSourceDevice(),
(long)message.getTimestamp(), body,
message.getGroupInfo());
textMessage = new IncomingEncryptedMessage(textMessage, body);
/*messageAndThreadId = */ database.insertMessageInbox(/*masterSecret, */ textMessage);
/*}
*
* MessageNotifier.updateNotification(context, masterSecret.getMasterSecret().orNull(), messageAndThreadId.second);*/
}
protected override async Task <string> ExecuteAsync()
{
PushDatabase database = DatabaseFactory.getPushDatabase();
TextSecureEnvelope envelope = database.GetEnvelope(messageId);
/*Optional<Long> optionalSmsMessageId = smsMessageId > 0 ? Optional.of(smsMessageId) :
* Optional.< Long > absent();*/
handleMessage(/*masterSecret,*/ envelope /*, optionalSmsMessageId*/);
database.Delete(messageId);
return("");
}
private void handleMessage(TextSecureEnvelope envelope, bool sendExplicitReceipt)
{
var worker = App.Current.Worker;
long messageId = DatabaseFactory.getPushDatabase().Insert(envelope);
if (sendExplicitReceipt)
{
/* worker.AddTaskActivities(new DeliveryReceiptTask(envelope.getSource(),
* envelope.getTimestamp(),
* envelope.getRelay()));*/
}
worker.AddTaskActivities(new PushDecryptTask(messageId, envelope.getSource()));
}
private TextSecureGroup createGroupInfo(TextSecureEnvelope envelope, DataMessage content)
{
if (!content.HasGroup)
{
return(null);
}
TextSecureGroup.Type type;
switch (content.Group.Type)
{
case GroupContext.Types.Type.DELIVER: type = TextSecureGroup.Type.DELIVER; break;
case GroupContext.Types.Type.UPDATE: type = TextSecureGroup.Type.UPDATE; break;
case GroupContext.Types.Type.QUIT: type = TextSecureGroup.Type.QUIT; break;
default: type = TextSecureGroup.Type.UNKNOWN; break;
}
if (content.Group.Type != GroupContext.Types.Type.DELIVER)
{
String name = null;
IList <String> members = null;
TextSecureAttachmentPointer avatar = null;
if (content.Group.HasName)
{
name = content.Group.Name;
}
if (content.Group.MembersCount > 0)
{
members = content.Group.MembersList;
}
if (content.Group.HasAvatar)
{
avatar = new TextSecureAttachmentPointer(content.Group.Avatar.Id,
content.Group.Avatar.ContentType,
content.Group.Avatar.Key.ToByteArray(),
envelope.getRelay());
}
return(new TextSecureGroup(type, content.Group.Id.ToByteArray(), name, members, avatar));
}
return(new TextSecureGroup(content.Group.Id.ToByteArray()));
}
protected override async Task <string> ExecuteAsync()
{
try
{
String sessionKey = TextSecurePreferences.getSignalingKey();
TextSecureEnvelope envelope = new TextSecureEnvelope(data, sessionKey);
handle(envelope, true);
}
catch (/*IOException | InvalidVersion*/ Exception e) {
Debug.WriteLine($"{this.GetType().Name}: Error: {e.Message}");
}
return("");
}
private TextSecureSyncMessage createSynchronizeMessage(TextSecureEnvelope envelope, SyncMessage content)
{
if (content.HasSent)
{
SyncMessage.Types.Sent sentContent = content.Sent;
return(TextSecureSyncMessage.forSentTranscript(new SentTranscriptMessage(sentContent.Destination,
sentContent.Timestamp,
createTextSecureMessage(envelope, sentContent.Message))));
}
if (content.HasRequest)
{
return(TextSecureSyncMessage.forRequest(new RequestMessage(content.Request)));
}
return(TextSecureSyncMessage.empty());
}
private TextSecureDataMessage createTextSecureMessage(TextSecureEnvelope envelope, DataMessage content)
{
TextSecureGroup groupInfo = createGroupInfo(envelope, content);
LinkedList <TextSecureAttachment> attachments = new LinkedList <TextSecureAttachment>();
bool endSession = ((content.Flags & (uint)DataMessage.Types.Flags.END_SESSION) != 0);
foreach (AttachmentPointer pointer in content.AttachmentsList)
{
attachments.AddLast(new TextSecureAttachmentPointer(pointer.Id,
pointer.ContentType,
pointer.Key.ToByteArray(),
envelope.getRelay(),
pointer.HasSize ? new May <uint>(pointer.Size) : May <uint> .NoValue,
pointer.HasThumbnail ? new May <byte[]>(pointer.Thumbnail.ToByteArray()) : May <byte[]> .NoValue));
}
return(new TextSecureDataMessage(envelope.getTimestamp(), groupInfo, attachments,
content.Body, endSession));
}
public void handle(TextSecureEnvelope envelope, bool sendExplicitReceipt)
{
if (!isActiveNumber(envelope.getSource()))
{
TextSecureDirectory directory = DatabaseFactory.getDirectoryDatabase();
ContactTokenDetails contactTokenDetails = new ContactTokenDetails();
contactTokenDetails.setNumber(envelope.getSource());
directory.setNumber(contactTokenDetails, true);
}
if (envelope.isReceipt())
{
handleReceipt(envelope);
}
else
{
handleMessage(envelope, sendExplicitReceipt);
}
}
public async Task <List <TextSecureEnvelope> > retrieveMessages(MessageReceivedCallback callback)
{
List <TextSecureEnvelope> results = new List <TextSecureEnvelope>();
List <TextSecureEnvelopeEntity> entities = await socket.getMessages();
foreach (TextSecureEnvelopeEntity entity in entities)
{
TextSecureEnvelope envelope = new TextSecureEnvelope(entity.getType(), entity.getSource(),
entity.getSourceDevice(), entity.getRelay(),
entity.getTimestamp(), entity.getMessage(),
entity.getContent());
callback.onMessage(envelope);
results.Add(envelope);
socket.acknowledgeMessage(entity.getSource(), entity.getTimestamp());
}
return(results);
}
public long Insert(TextSecureEnvelope envelope)
{
// TODO check if exists
var push = new Push()
{
Type = envelope.getType(),
Source = envelope.getSource(),
DeviceId = envelope.getSourceDevice(),
LegacyMessage = envelope.hasLegacyMessage() ? Base64.encodeBytes(envelope.getLegacyMessage()) : "",
Content = envelope.hasContent() ? Base64.encodeBytes(envelope.getContent()) : "",
Timestamp = TimeUtil.GetDateTime(envelope.getTimestamp())
};
try
{
conn.Insert(push);
} catch (Exception e) { Debug.WriteLine(e.Message); }
return(push.PushId);
}
private void OnMessageReceived(WebSocketConnection sender, WebSocketRequestMessage request)
{
WebSocketResponseMessage response = createWebSocketResponse(request);
Debug.WriteLine($"Verb: {request.Verb}, Path {request.Path}, Body({request.Body.Length}): {request.Body}, Id: {request.Id}");
try
{
if (isTextSecureEnvelope(request))
{
TextSecureEnvelope envelope = new TextSecureEnvelope(request.Body.ToByteArray(),
credentialsProvider.GetSignalingKey());
MessageReceived(this, envelope);
}
}
//catch (Exception e) { } // ignore for now
finally
{
websocket.sendResponse(response);
}
}
private void handleMessage(/*MasterSecretUnion masterSecret, */ TextSecureEnvelope envelope /*, Optional<Long> smsMessageId*/)
{
try
{
AxolotlStore axolotlStore = new TextSecureAxolotlStore();
TextSecureAddress localAddress = new TextSecureAddress(TextSecurePreferences.getLocalNumber());
TextSecureCipher cipher = new TextSecureCipher(localAddress, axolotlStore);
TextSecureContent content = cipher.decrypt(envelope);
if (content.getDataMessage().HasValue)
{
TextSecureDataMessage message = content.getDataMessage().ForceGetValue();
if (message.isEndSession())
{
handleEndSessionMessage(/*masterSecret, */ envelope, message /*, smsMessageId*/);
}
//else if (message.isGroupUpdate()) handleGroupMessage(masterSecret, envelope, message, smsMessageId);
//else if (message.getAttachments().isPresent()) handleMediaMessage(masterSecret, envelope, message, smsMessageId);
else
{
handleTextMessage(/*masterSecret, */ envelope, message /*, smsMessageId*/);
}
}
/*else if (content.getSyncMessage().HasValue) TODO: SYNC enable
* {
* TextSecureSyncMessage syncMessage = content.getSyncMessage().ForceGetValue();
*
* if (syncMessage.getSent().HasValue) handleSynchronizeSentMessage(masterSecret, syncMessage.getSent().ForceGetValue(), smsMessageId);
* else if (syncMessage.getRequest().HasValue) handleSynchronizeRequestMessage(masterSecret, syncMessage.getRequest().ForceGetValue());
* }*/
if (envelope.isPreKeyWhisperMessage())
{
App.Current.Worker.AddTaskActivities(new RefreshPreKeysTask());
//ApplicationContext.getInstance(context).getJobManager().add(new RefreshPreKeysJob(context));
}
}
catch (InvalidVersionException e)
{
//Log.w(TAG, e);
//handleInvalidVersionMessage(masterSecret, envelope, smsMessageId);
}
/* catch (InvalidMessageException | InvalidKeyIdException | InvalidKeyException | MmsException e) {
* Log.w(TAG, e);
* handleCorruptMessage(masterSecret, envelope, smsMessageId);
* } catch (NoSessionException e)
* {
* Log.w(TAG, e);
* handleNoSessionMessage(masterSecret, envelope, smsMessageId);
* }
* catch (LegacyMessageException e)
* {
* Log.w(TAG, e);
* handleLegacyMessage(masterSecret, envelope, smsMessageId);
* }
* catch (DuplicateMessageException e)
* {
* Log.w(TAG, e);
* handleDuplicateMessage(masterSecret, envelope, smsMessageId);
* }
* catch (UntrustedIdentityException e)
* {
* Log.w(TAG, e);
* handleUntrustedIdentityMessage(masterSecret, envelope, smsMessageId);
* }*/
}
public void onMessage(TextSecureEnvelope envelope)
{
}
private void handleReceipt(TextSecureEnvelope envelope)
{
Debug.WriteLine($"Received receipt: (XXXXX, {envelope.getTimestamp()})");
DatabaseFactory.getMessageDatabase().incrementDeliveryReceiptCount(envelope.getSource(),
(long)envelope.getTimestamp());
}