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.

---
labels:
- 'Stage-Alpha'
summary: API to notify server admins
---

# Introduction

This module provides an API for other module developers to send
notification messages to host admins.

# Configuration

None required.

# Developers

Example:

```
local notify_admins = module:depends("admin_notify").notify;

notify("This is an important message for you, admins")
```

# Compatibility

Prosody trunk or later. Incompatible with 0.11 or lower.