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);
// TODO: evtl DirectoryRefresh
}
if (envelope.isReceipt()) handleReceipt(envelope);
else if (envelope.isPreKeyWhisperMessage() || envelope.isWhisperMessage())
{
handleMessage(envelope, sendExplicitReceipt);
}
else
{
Log.Warn($"Received envelope of unknown type: {envelope.GetType()}");
}
}
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);
}
