mod_muc_rtbl: also filter messages This was a bit tricky because we don't want to run the JIDs through SHA256 on each message. Took a while to come up with this simple plan of just caching the SHA256 of the JIDs on the occupants. This will leave some dirt in the occupants after unloading the module, but that should be ok; once they cycle the room, the hashes will be gone. This is direly needed, otherwise, there is a tight race between the moderation activities and the actors joining the room.

---
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";
		...
	}
```