When receiving, add mock session if none exists

Andreas Straub created 

We need a session object in order to build a session from a
PreKeyWhisperMessage, so add an empty one when none exists on receiving
a message.

Warning: this will break right now if the session can not be constructed
from the received message.There will be an invalid session which will
break if we try to send using it.

Change summary

src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java | 2 
1 file changed, 1 insertion(+), 1 deletion(-)

Detailed changes

src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java 🔗 

@@ -904,7 +904,7 @@ public class AxolotlService {
 			Log.d(Config.LOGTAG, "No axolotl session found while parsing received message " + message);
 			// TODO: handle this properly
 			session = new XmppAxolotlSession(axolotlStore, senderAddress);
-
+			sessions.put(senderAddress,session);
 		}
 
 		for(XmppAxolotlMessage.XmppAxolotlMessageHeader header : message.getHeaders()) {