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));
}
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);
}
