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blog.bouah.net/content/posts/xmpp-sprint.md
Maxime “pep” Buquet a3853b2b4c
Reword Objectives section 
Signed-off-by: Maxime “pep” Buquet <pep@bouah.net>
2018-08-29 01:37:14 +01:00

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title date draft tags
Xmpp Sprint 2018-08-27T23:56:33+01:00 true
XMPP
IM
Sprint

A week ago, on August 18-19th, was held the first developer event in the XMPP community for a long time.

The idea came up at the Gulaschprogrammiernacht, in Karlsruhe earlier this year, talking with Daniel Gultsch, and JC Brand. We gathered there to work on an implementation of OMEMO encryption mechanism for conversejs, and poezio. The former is currently being merged, the latter is taking a bit more time, but we'll get there eventually.

JC mentioned sprints organised by the Plone community, and I felt that was something we were missing for XMPP. While the XMPP summit is held every year before FOSDEM, it is often more oriented towards protocol discussions. Developer events are scarce.

I set a goal for myself to start a movement in the community, gather interested people, and work together to improve the ecosystem.

The first event -- of this hopefully long series of events -- was held two weeks ago, sponsored by my employer, Collabora, in their UK office in Cambridge!

Who attended

And remotely:

Objectives

In retrospective, User Experience seems to fit the ambiance of the sprint (badly said), and is generally a theme that comes back regularly within the community lately.

At the beginning of the sprint, here is roughly what we planned to work on:

  1. Bookmarks: Sync Private XML bookmarks with PEP ones.
    XMPP has different standard places to store bookmarks, and this has often proved to be a painful experience to the user, when using different clients for examle. The objective here was to transparently synchronize both stores, so that the user gets an overall nicer experience.
  2. Message Attaching
    TDB
  3. In-Band Registration in clients that don't support it, namely dino and poezio.
    In-Band Registration is a mechanism that allows clients to provide an interface to create accounts on servers that allow it. This way the user doesn't have to go through multiple hops to start chatting with their friends.
  4. Reactions
    TBD
  5. Consistent color generation
    This specification aims at providing algorithms that will be used to generate deterministic colors, so that they stay consistent across clients, and thus help with recognition, for nicknames in groupchats, for example.
  6. Hats
    Hats are TBD

Hard working developers

Accomplishments

Not everything that was mentioned on the saturday morning was worked on, but we did manage to get quite a few a lot done. This was also the opportunity to discuss about various topics.

Here is a non-exhaustive list of issues/topics we worked on:

Prosody

Converse.js

  • Better ordering of name fallbacks in Converse.js: pull/1168
  • Attempt at a new UI/design for Converse.js: pull/1167

Conversations

  • Use PEP Bookmarks in Conversations if urn:xmpp:bookmarks-conversion:0 is annouced. commit
  • Experiments with XEP-0392
    • Conversations: Disabled by default variant that uses HSLUV instead of YCbCr. HSLUV provides more uniform colors and also 'nicer' colors by default. commit

Dino

Poezio

  • Start implementation of IBR

XEPs

  • Message attachments XEP updated: pull/696

Misc/Packaging

Day 1

  • Bookmarks sync in Prosody: mod_bookmarks
  • Use PEP Bookmarks in Conversations if urn:xmpp:bookmarks-conversion:0 is annouced. commit
  • Message attachments XEP updated: pull/696
  • Added XMPP-related software to main Gentoo package repository
  • Experiments with XEP-0392 (Consistent Color Generation) in Conversations and Dino
    • Conversations: Disabled by default variant that uses HSLUV instead of YCbCr. HSLUV provides more uniform colors and also 'nicer' colors by default. commit
  • Start implementation of IBR in poezio and Dino
  • Mention threads, talk about how (not) to implement them, (comparing with other IM solutions).
  • Better ordering of name fallbacks in Converse.js: pull/1168
  • Attempt at a new UI/design for Converse.js: pull/1167

Day 2

  • Detailed Converse.js walkthrough by JC
  • XML pretty-printing plugin for poezio: xmlindent.py
  • Updated Conversations Compliance Checker help for Prosody: pull/6
  • SCRAM-SHA-1 for Dino: tree/scram-sha-1
  • Fixed nVidia specific rendering and performance issue in Dino
  • Working on adding the following projects to the Gentoo main repo:
    • Biboumi (IRC gateway)
    • Spectrum (multiprotocol gateway)
    • Swift (client and library)
    • Profanity (console client)
  • Almost working XEP-0156 implementation for Converse.js: pull/1170
  • Visually improve Sign In dialog in Dino
  • Add IBR support to Dino (supports forms and OOB)
  • Initial attempt at IBR in poezio!10 and slixmpp!4
  • Fix launch script version
  • Fix display names in MUCs without localparts in Dino (!)
  • Discuss about how to correctly handle xmpp URIs in poezio

I would like to thank everybody who participated, helped organise the event, and made all this possible. Thanks Collabora again for sponsoring us and providing the venue.

What's Next

Talks of organising a next sprint this year in Düsseldorf, or Paris, are already happening. If you are interested and want to participate, please join the chatroom to stay updated.