mod_roster_command: Fix subscription when the "user JID" is a bare domain. Do not attempt to update the roster when the user is bare domain (e.g. a component), since they don't have rosters and the attempt results in an error: $ prosodyctl mod_roster_command subscribe proxy.example.com contact@example.com xxxxxxxxxxFailed to execute command: Error: /usr/lib/prosody/core/rostermanager.lua:104: attempt to concatenate local 'username' (a nil value) stack traceback: /usr/lib/prosody/core/rostermanager.lua:104: in function 'load_roster' /usr/lib/prosody/core/rostermanager.lua:305: in function 'set_contact_pending_out' mod_roster_command.lua:44: in function 'subscribe'

---
labels:
- 'Stage-Stable'
summary: c2s connections throttling module
...

Introduction
============

This module allows to throttle those client connections which exceed a
n\*seconds limit.

Usage
=====

Copy the module folder into your prosody modules directory. Place the
module between your enabled modules either into the global or a vhost
section.

Optional configuration directives:

``` {.lua}

cthrottler_logins_count = 3 -- number of login attempts allowed, default is 3
cthrottler_time = 60 -- .. in number of seconds, default is 60
```

Info
====

-   0.8, works
-   0.9, works