After testing with all implementation variants on my Note-8 with email@example.com account, I am experiencing wiered device behavior:
a. omemo table is not in a proper state. e.g. the identity table contains the identityPrekey instead of identityPrekeyPairs
b. sending of omemo messaging is not working.
c At one instance, omemoManager throws “user not login” in actual fact the init was only call after callback from smack upon authentication. This was observed when account only successfully login on second attempt after first attempt failed; In impelementation, I block fetching new instance of omemoManger if not null. I suspect the problem arises due to aTalk smack and omemoManger is referring to a different instance of connection. I decided to revert the change to allow fetching new instance of omemoManger whenever a connection is connected (before authentication).
Sine unable to continue testing with a broken database, I decided to conduct the test with everything fresh by doing the followings.
a. Clear all the aTalk apk data on android Note-8
b. Clean up all the published items on my ejabberd server for user firstname.lastname@example.org
Following are my observation with this new setup and confirmed with repeated tests.
- When I use the following method to get an instance of omemoManager upon connection.
OmemoManager omemoManager = OmemoManager.getInstanceFor(mConnection);
I found that all my omemo database is populated with own OmemoDevice as email@example.com:-1 and all other tables i.e.
prekeys, signedPrekey etc are filled with deviceId -1 in the respective deviceId column.
If I try to setup a omemo chat from my Note-3 (installed with aTalk v1.0.3 i.e. old omemo library), it was prompted to confirm the fingerPrint for firstname.lastname@example.org:-1.
- When I use following method to get an instance of omemoManager upon connection i.e. with own local generated randomID e.g. 903218477
defaultDeviceId = OmemoManager.randomDeviceId();
((SQLiteOmemoStore) mOmemoStore).setDefaultDeviceId(userJid, defaultDeviceId);
OmemoManager omemoManager = OmemoManager.getInstanceFor(mConnection, defaultDeviceId);
As expected, the omemo database are now correctly filled with email@example.com:903218477
and also Note-3 is prompted to confirm the fingerPrint for the correct omemoDevice firstname.lastname@example.org:903218477.
However whenever I try to send omemo messages between Note-3 to Note-8, sent messages cannot received by either party.
And both throws error as follow: I restart both devices, one after the other repeated many times, but nothing help.
===== Note-3 =======
For the problem exhibit by Note-3, I believe it was the problem of PEP Manager failing to publish the deviceID on server as highlighted in my previous comments.
===== Note-8 =======
In my previous omemo implementation I actually have a
private method i.e. private PEPListener buddyDeviceListUpdateListener(). You may refer to the source in my github repository. that listens for the PEP event deviceList broadcast from server, and re-create buddy identities when found missing. This is to resolve problem as exhibited by Note-8; it uses method
OmemoService.getInstance().buildSessionFromOmemoBundle(mOmemoManager, omemoDevice, false) but has been removed from the latest OmemoService. I try the new method
OmemoManager.getInstanceFor(mConnection).rebuildSessionWith(contactDevice) but does not seem to work. It actually corrupted the atalk omemo database for own IdentityKeyPairs and overwritten with identityKey containing only public key.
OmemoManger has a similar implementation i.e.
private final PEPListener deviceListUpdateListener, but it takes care only for own DeviceIDs.
Any help is appreciated. Now I am stuck unable to carry out further test since Note-8 omemo data is not complete.
=========== On Note-3 on receive omemo message from Note-8 =============== 01-20 16:19:30.371 D/SMACK: RECV (0): <message xml:lang='en' email@example.com/atalk' firstname.lastname@example.org/atalk' type='chat' id='pCVp7-194'><encrypted xmlns='eu.siacs.conversations.axolotl'><header sid='903218477'><iv>iv5UvM3c1EkIKZuIp8jwlA==</iv></header><payload>1LaNeQI=</payload></encrypted><store xmlns='urn:xmpp:hints'/><encryption xmlns='urn:xmpp:eme:0' namespace='eu.siacs.conversations.axolotl' name='OMEMO'/><body>I sent you an OMEMO encrypted message but your client doesn't seem to support that. Find more information on https://conversations.im/omemo</body><thread>7745e59b-2a65-4c5e-8e08-fc38d47f42f6</thread></message> 01-20 16:19:30.371 I/aTalk:  org.jivesoftware.smackx.omemo.OmemoService.processReceivingMessage() There is no key with our deviceId. Silently discard the message. =========== On Note-8 on receive omemo message from Note-3 =============== 01-20 16:18:10.081 D/SMACK: RECV (1): <message xml:lang='en' email@example.com/atalk' firstname.lastname@example.org/atalk' type='chat' id='Tp0VL-947'><encrypted xmlns='eu.siacs.conversations.axolotl'><header sid='19359559'><key prekey='true' rid='903218477'>MwhiEiEFSyp2PitMJy0LXYIs+f0VHSfJC4ibPDm4pb4slxZXjF8aIQW2pyW5zLtfPT2nE2NqkvTRLDhuTjDEJwm9xcYf9wX2CiJiMwohBR1/taRvpJF0yVFd8BO2xWs2L1zKcVqKeWOEk3lLHnQyEAQYACIw9ymHWbdBW2qRK8w7gW00jrB3rPLgyHATx1VtUMtiXVGTGiCppn5UkRtSFjTeB5nGHjdRqPySxfMoADAB</key><key prekey='true' rid='10139552'>Mwg0EiEFbQ6dFIYDbf3+lxOZh1aVSHcc42epqcNrrEyTDM46/2EaIQW2pyW5zLtfPT2nE2NqkvTRLDhuTjDEJwm9xcYf9wX2CiJiMwohBRQoOLufXZZKFTdnmilBiCH+pCUkqf0rJQJ1r54Ar9cJECIYACIwIbV8dlzy9A7bIqPDdRGNmXRheukaMdcPO3ya30Wj2c7DIh7NBOByoR5AMSdJ6OdRiguEtn9VeDgoADAB</key><iv>G14sa3XUOYoqIuaW00mngQ==</iv></header><payload>QOee</payload></encrypted><store xmlns='urn:xmpp:hints'/><encryption xmlns='urn:xmpp:eme:0' namespace='eu.siacs.conversations.axolotl' name='OMEMO'/><body>I sent you an OMEMO encrypted message but your client doesn’t seem to support that. Find more information on https://conversations.im/omemo</body><thread>dd74fb02-6831-4e34-964e-43e3898bc7c9</thread></message> 01-20 16:18:10.159 E/aTalk:  util.UtilActivator.uncaughtException().95 An uncaught exception occurred in thread=Thread[Thread-69,5,main] and message was: Cannot retrieve OmemoFingerprint of sender although decryption was successful: org.jivesoftware.smackx.omemo.exceptions.NoIdentityKeyException java.lang.AssertionError: Cannot retrieve OmemoFingerprint of sender although decryption was successful: org.jivesoftware.smackx.omemo.exceptions.NoIdentityKeyException at org.jivesoftware.smackx.omemo.OmemoService.decryptMessage(OmemoService.java:453) at org.jivesoftware.smackx.omemo.OmemoService.onOmemoMessageStanzaReceived(OmemoService.java:1169) at org.jivesoftware.smackx.omemo.OmemoManager$3$1.run(OmemoManager.java:984) at java.lang.Thread.run(Thread.java:762)