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    Lemmy XMPP 2 Matrix Chatroom

    Matt · pubsub.do.nohost.me / dcentralised-media · Saturday, 20 February - 05:20 edit

For those who use #Lemmy (the federated reddit replacement), I've created a Lemmy #XMPP chatroom that bridges to the Lemmy Matrix room....

You can join at lemmy@muc.do.nohost.me

Now we don't need to feel left out... :D

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    1 Like

    Matt

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    Easy Self Hosting Setup in the Cloud (XMPP included)

    Matt · pubsub.do.nohost.me / dcentralised-media · Saturday, 20 February - 01:07 edit

While I run my own #Yunohost server @home, I like the idea of having a bit more separation between my public/private spaces...

Already having a Digital Ocean account, I spun up a $5 p/month Debian 10 droplet, then following these instructions to setup Yunohost on a remote server, was up and running in under 10 minutes...

For those that don't know, Yunohost has an #XMPP server running out of the box. I also wanted to bridge between the AFediverseChat Matrix room and XMPP (Chatroom can be found here afediversechat@muc.do.nohost.me) . Quick search, and Matterbridge is installed... I recommend setting up a throw away account on your Yunohost server for this

Just installed Etherpad, so will see how that works... But so far, it hasn't even put a dent in my $5 droplet...

Want to post a comment? Sign up to a Movim pod... using your XMPP account!

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    debacle , Matt , Melvin C. McDowell

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    Movim 0.19 - Ikeya is out!

    Miho · Wednesday, 17 February - 20:34 edit · 7 minutes

Movim 0.19 - Ikeya is out! This version is a major step for Movim with a lot of improvements on the performances and many (many!) small fixes and new features.

Chat and chatrooms

A critics that was coming once in a while is how difficult it was to join and/or create a chatroom in Movim. The 0.19 version follow the Modern XMPP Multi-user Chats recommendations that is already implemented in several other #XMPP clients. This standard is bringing a common naming convention and flow to create and configure chatrooms in XMPP.

Add Chatroom dialog

On top of that the the join/create #Chatroom flow was totally redesigned. The new one is inspired by the Telegram one, with one unique "+" button to start a new one-to-one or one-to-many conversation. The global chatroom search was also directly integrated in the flow to allow you to quickly search and join one of the few thousands already listed ones.

The one-to-one chat conversations views are now cached server side. This simple trick is saving some precious milliseconds during the page load. The performance boost allowed us to simply remove the chat list placeholder (you don't need a placeholder if the content is loading instantly).

Conversations improvements

The encrypted messages are now displayed in the bubbles.

An encrypted message

You can receive messages read confirmation in Group Chats and in small Channels (when there is less than 10 persons connected).

The XEP-0201: Best Practices for Message Threads has been implemented. Movim now handle Replies on the received messages. Useful to follow multiple topics during a conversation.

A replied message

Like images before, videos are now embedded in the conversations with the support of the WebM and H264 video files.

With this awesome feature, the Tenor API was also integrated. You can now search in millions of #GIF and publish them instantly in your conversations. The #Tenor API is disabled by default, the server administrator can enable it by adding its custom API key in the Movim admin panel.

The GIF picker

All the published message URLs are also now embedded in the discussions. You can also now easily browse the URL related pictures directly in the Movim picture preview gallery widget.

An embedded URL

The chatrooms with unread messages are now put on top of the chatrooms list.

A pack of ~1500 new emojis were added to the emoji picker.

A couple of new emojis

Communities and Blogs

The Explore page was reorganized with a few new features. You can now filter the Explore panel to return only the Communities or Blog articles (the same way you can filter the articles on the News page). A "More" button is also now allowing you to retrieve older articles.

The new discover page

The Communities in the servers are now ordered by last updated.

But also…

The preview Widget is now having a "copy to clipboard" button. Useful!

Preview and copy easily the picture link

There is a first integration of the #Firebase Push notifications in Movim. This is currently in test with the Android app and will require some more improvements and adjustments before being released as a stable feature.

You can now directly drag & drop files or copy paste pictures in Movim to trigger the upload dialog box.

The drag and drop box

Performances

Batch insertion

Lets now dive in the more technical aspects with the performances improvements.

Most of the performances bump in Ikeya are actually regarding how he database is requested. In the previous Movim version, a PresenceBuffer was introduced to save "batches" of incoming requests in one database query and not hundred of them.

The presence is a core concept of XMPP (eXtensible Messaging and Presence Protocol). During the connection, you will receive a presence from each online contact from your contact list, similarly, when you join a chatroom, you will as well receive a presence for each member connected to the room.

So now imagine that you have a big account, with hundred of contacts and a few dozen chatrooms with hundred of connected users in each of them. During the login, your XMPP client will then receive thousands of presences. The PresenceBuffer is there to "stack them" when they are received and save them in batches in the database and then notify only once the UI (your browser) that "all those presences were saved".

This PresenceBuffer element was greatly improved and will now not only save the Presences in batches, but also handle some related data like Capabilities Requests (those information are used to know what your contacts XMPP clients are capable of) as well as Vcard request (your contact personal information and avatars).

In a similar aspect, the retrieved Bookmarked Conferences and Community Subscriptions are also now saved in batches in the database, saving dozens of requests.

Preload

Another important optimization that can be done when dealing with databases is to preload some information when retrieving list of items. Lets imagine that you need to retrieve 50 messages from the database. Those messages might have related data, such as reactions, replies or attached files. It is often good to load in parallel all those data "in batches".

The wrong way
1. Get the messages A, B, E and F
2. Process the messages
  - Check if A has an attached file
  - Check if B has an attached file
  …

The good way
1. Get the messages A, B, E and F
2. Try to get files for the A, B, E and F messages
3. Once the two lists are retrieved, see if some files matches the messages

This was already done in many places in Movim (hopefully), bu even after years we are still finding some small optimizations that were missing. All those small improvements is now allowing Movim to retrieve full conversations and scroll the history in a few hundred milliseconds, even if the database is filled with millions of messages.

You should know that each time you open a discussion in Movim, your browser is actually asking the server about all the messages that will be displayed, there is no local cache. If you have a backend that is fast enough, you don't need complex Javascript frontends to process and store things ;)

Database connection auto-close

Each connected user on a Movim instance is having it's own specific process launched on the server. This is bringing some nice isolation an performances distribution, especially if on servers with many parallel available threads (this also brings some memory consumption issues that will be improved in the upcoming versions).

For each of those launched "user-session-processes" a database connection was opened to allow them to perform database queries quickly.

The main issue there is that database servers (such as MySQL and PostGreSQL, the two supported servers for Movim) can only handle a certain limit of parallel connections. Movim is then now automatically closing unused connections after a few seconds and resume them once a new query is sent. This allow Movim to handle hundred of parallel sessions without overloading the database server anymore.

Translations cache

The languages translations are now cached when the daemon is launched once for all. This bring a few milliseconds gain during page load. It's not much but it's an easy win!

The translations can also be manually recompiled using the following command

php daemon.php compileLanguages

Picture proxyfying and caching

Most of the Movim pictures are now proxyfied by Movim. This way the Movim pod will hide its users personnal IPs and browser information when the pictures are retrieved. The proxy is also moving all the pictures URL under a specific picture/ directory. This simple trick can allow server admins to create a nice caching system directly on the web-server level.

For example, if a friend in a chatroom is sharing a nice picture that is a bit heavy. The first person that will receive the picture will ask Movim, through the Movim web-server to download it and return an optimized version of it. The web-server will then keep a copy of the optimized picture. All the other users will then ask the same resource, and the web-server will simply returned the cached version, without even asking anything to Movim anymore.

A specific section in the Movim setup tutorial was added to explain you how to setup and configure this cache system during the Movim deployment.

To conclude

This was quite a big version indeed, we hope that you will enjoy it. The upcoming one will be a special release and will focus on one specific feature, we will come back to it in the upcoming weeks, be patient.

A clue about the upcoming release?

As always, if you like Movim please share it around. You can always help us by directly contributing to the project and help funding us on our Patreon.

That's all folks!

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    Movim | Basic Review & Beginner's Guide

    debacle · Saturday, 13 February - 11:33

Movim | Basic Review & Beginner's Guide

by Ade Malsasa Akbar

Movim is a free, beautiful looking, complete communication solution which is like a combination of Facebook, WhatsApp and Blogger. With Movim you can connect to friends, make posts and blog news, create groups, plus voice & video calls -- aside from its Xmpp network. See features it offers and you can expect it can be used for many purposes including online meetings and classrooms. This simple guide exists to help you start Movim. Let's go!

#alternative #beginnersguide #degoogle #freesoftware #instantmessenger #movim #switchfromwhatsapp #videocall #xmpp

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    Timothée Jaussoin , ericbuijs , Archer Ships

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    Prosody Debugging

    pubsub.slavino.sk / warlord0blog · Tuesday, 9 February - 20:38 edit

After building an ejabberd container set I’m continuing my foray into the world of xmpp by looking at prosody. I’ve run into a few man traps along the way and thought I’d document some of my failings to act as a catch all for search engines to help others with similar issues. Are the certificates &ellipsisRead the full post »

Značky: #xmpp, #Linux

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    Mollusk · Monday, 8 February - 23:48

    I just think it's great how much stuff we can do with #xmpp