view mod_bob/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 db75772afb28
children
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---
summary: Cache Bits of Binary on MUC services
rockspec:
  dependencies:
    - mod_cache_c2s_caps
---

Description
===========

This module extracts cid: URIs (as defined in XEP-0231) from messages, and
replies with their content whenever another client asks for the actual data.

Usage
=====

```lua
Component "rooms.example.org" "muc"
	modules_enabled = {
		"bob";
		...
	}
```