Mercurial > prosody-modules
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`)