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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 9754eedbc4d1
children
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---
labels:
- 'Type-Storage'
- 'Stage-Alpha'
summary: MU-Conference SQL Read-only Storage Module
...

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

This is a storage backend using MU-Conference’s SQL storage. It depends
on [LuaDBI][doc:depends#luadbi]

This module only works in read-only, and was made to be used by
[mod_migrate] to migrate from MU-Conference’s SQL storage.

You may need to convert your 'rooms' and 'rooms\_lists' tables to
utf8mb4 before running that script, in order not to end up with
mojibake.  Note that MySQL doesn’t support having more than
191 characters in the jid field in this case, so you may have to change
the table schema as well.

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

Copy the module to the prosody modules/plugins directory.

In Prosody's configuration file, set:

    storage = "muconference_readonly"

MUConferenceSQL options are the same as the [SQL
ones][doc:modules:mod_storage_sql#usage].

Compatibility
=============

  ------- ---------------------------
  trunk   Works
  0.10    Untested, but should work
  0.9     Does not work
  ------- ---------------------------