#1129 mod_mam_muc support for mam:2 on Prosody 0.10

Reporter Thomas
Owner MattJ
Stars ★★★★★ (14)
  • Type-Enhancement
  • Component-Community
  • Status-WontFix
  • Priority-Medium
  1. Thomas on

    What steps will reproduce the problem? 1. Install recent version of prosody-modules 2. Open Conversations XMPP client 3. Open MUC settings for details What is the expected output? - Settings show: mam_muc: yes What do you see instead? - Settings view shows: mam_muc: no - No MAM support for MUCs :-( What version of the product are you using? On what operating system? prosod-modules version of 2018-04-17 Prosody 0.10.0 Please provide any additional information below. Configuration was not changed in the meantime - only prosody-modules update triggered and new Conversations App version. Maybe there is some imcompatibility with the new Conversations app. Not sure if this is maybe related: https://hg.prosody.im/prosody-modules/rev/39994c6bb314

  2. MotoGP-Fan on

    Exactly the same on my server in association with the Conversations app since version 2.0

  3. MattJ on

    Hi folks, thanks for the report. The current mod_mam_muc does not support the latest version of MAM when used with Prosody 0.10 (it works with trunk only). On 0.10 it uses the previous version of MAM. I've therefore converted this issue to a feature request.

    • title MAM_MUC not supported on Conversations mod_mam_muc support for mam:2 on Prosody 0.10
    • tags Type-Enhancement Component-Community
  4. Frank on

    mam_muc worked fine with prosody 0.10 until the latest update. I had to downgrade mod_mam_muc to fix this. Bug or feature? Clients: Conversations 2.x, converse.js / inverse.js

  5. Thomas on

    @Frank which version are you running now?

  6. ValdikSS on

    This is because Conversations tries to use only mam:2 OR mam:0, while Prosody 0.10 announces mam:1. Prosody should announce mam:0 too.

  7. Frank on

    @Thomas - I'm running Prosody 0.10.0 with the mod_mam_muc I downloaded in December. I restored it from backup. Should be this one: https://hg.prosody.im/prosody-modules/file/b69ef062806e/mod_mam_muc/mod_mam_muc.lua

  8. cjinh on

    same issues here : prosody 0.10 and lastest module update.

  9. Martin on

    Revert of mod_mam_muc to old version solved my issue.

  10. MattJ on

    Just want to post a summary of this issue. The problem is: There are two versions of MAM in use, version 1 and version 2. mod_mam_muc supports version 2 when running with Prosody trunk, and supports version 1 when running with Prosody 0.10. Conversations only supports version 2 (it checks that the server announces version 2 support). mod_mam_muc had a bug where it announced support for version 2, even when it was running on 0.10. This broke some clients (e.g. Gajim, see #1118). Based on user reports, it seems Conversations somehow works even when version 1 is used but version 2 is announced. My guess is that Conversations in this mode will quietly use twice as much bandwidth (because it will sync from MAM all the messages it already received). The solutions are: - Use Prosody trunk nightly builds, where version 2 is supported and everyone is happy - Revert this module to the buggy version, where Conversations works (inefficiently) and other clients break - Wait for mod_mam_muc to support version 2 in Prosody 0.10. It's not clear if/when this will happen (our priority is finishing and releasing trunk), but it is a community module: if someone wanted to work on this we would support them. Hope this helps to make the issue more clear.

  11. Daniel Gultsch on

    @Matt this is about injecting stanza-ids into live messages right? Conversations always uses the last received message as a starting point for the catch up. If that message has a stanza-id it will be used. If not it will fall back to using the time stamp. I’m not aware of any bugs that would cause Conversations to receive the messages twice. So if this is just about Conversations it should be relatively save to revert to an old version of the module.

  12. MattJ on

    @Daniel: That helps further clarify the matter, thanks! If Conversations functions ok without stanza-id, would you consider enabling MUC MAM also when the server advertises :1 support but not :2? That would make it compatible with Prosody 0.10 without needing to break the protocol or other clients.

  13. tmolitor on

    @MattJ: Daniel did add mam:1 support recently: https://github.com/siacs/Conversations/commit/48e366e4108cf509631f753dc3d16ab0ab483276

  14. cjinh on

    Fixed in Conversations 2.2.6 https://github.com/siacs/Conversations/blob/master/CHANGELOG.md Thanks You

  15. MattJ on

    Great! Then I shall close this issue and look forward to the release of trunk which supports mam :2 for MUC already.

    • tags Status-WontFix
    • owner MattJ

New comment

Not published. Used for spam prevention and optional update notifications.