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.

# Introduction

This module exposes users [microblogging][xep277] on Prosodys built-in HTTP server.

# Usage

With default HTTP settings, the microblog of `user@example.com` would be
seen at `https://example.com:5281/atom/user`.

# Configuration

The module itself has no options. However it uses the access control
mechanisms in PubSub, so users must reconfigure their microblogging node
to allow access, by setting `access_model` to `open`.
E.g. Gajim has UI for this, look for "Personal Events" → "Configure
services".