view mod_muc_notifications/README.markdown @ 4651:8231774f5bfd

mod_cloud_notify_encrypted: Ensure body substring remains valid UTF-8 The `body:sub()` call risks splitting the string in the middle of a multi-byte UTF-8 sequence. This should have been caught by util.stanza validation, but that would have caused some havoc, at the very least causing the notification to not be sent. There have been no reports of this happening. Likely because this module isn't widely deployed among users with languages that use many longer UTF-8 sequences. The util.encodings.utf8.valid() function is O(n) where only the last sequence really needs to be checked, but it's in C and expected to be fast.
author Kim Alvefur <zash@zash.se>
date Sun, 22 Aug 2021 13:22:59 +0200
parents 69219097aa85
children
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---
labels:
- 'Stage-alpha'
summary: 'Notify of MUC messages to not present members'
...

Introduction
============

This module listens to MUC messages and sends a notification to the
MUC members not present in the MUC at that moment.

By default, the notification will be a message with a simple text as body.

By sending this "out-of-MUC" notification, not-joined members will be able to
know that new messages are available.

Usage
=====

First copy the module to the prosody plugins directory.

Then add "muc\_notifications" to your modules\_enabled list in your
MUC component:

```{.lua}
Component "conference.example.org" "muc"
modules_enabled = {
	"muc_notifications",
}
```

You may also want to enable "offline\_hints" module so the notification messages
sent by this module are not added to the offline storage for later delivery.

Configuration
=============

  Option                      Description
  --------------------------- ----------------------------------------------------------------------------------------------
  muc\_notification\_invite   If set to `true`, the notification sent will take the form of a MUC invite. (default: `false`)