mod_sasl2_fast: Improve handling when SASL profile unexpectedly lacks CB
This fixes a traceback reported by riau, but likely does not solve the
underlying cause, whatever that is.
---
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";
...
}
```