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'

---
summary: Serve PEP avatars from HTTP
---

# Introduction

This module serves avatars from local users who have published
[XEP-0084: User Avatar] via [PEP][doc:modules:mod_pep].

# Configuring

Simply load the module. Avatars are then available at
`http://<host>:5280/pep_avatar/<username>`

    modules_enabled = {
        ...
        "http_avatar";
    }

# Access

Users must [configure] their Avatar PEP nodes to be public, otherwise
access is denied.

# Compatibility

  ------- ---------------
  trunk   Works
  0.11    Works
  0.10    Does not work
  ------- ---------------

[configure]: https://xmpp.org/extensions/xep-0060.html#owner-configure