mod_report_affiliations: Fix traceback a non-user is sending a presence For now we won’t touch their presence instead of emiting this traceback: error Traceback[s2s]: /usr/lib/prosody/core/rostermanager.lua:275: attempt to concatenate a nil value (local 'username') stack traceback: /usr/lib/prosody/core/rostermanager.lua:275: in function 'prosody.core.rostermanager.is_user_subscribed' ...ules/mod_report_affiliations/mod_report_affiliations.lua:116: in field '?' /usr/lib/prosody/util/events.lua:81: in function </usr/lib/prosody/util/events.lua:77> (...tail calls...) /usr/lib/prosody/core/stanza_router.lua:184: in upvalue 'core_post_stanza' /usr/lib/prosody/modules/mod_presence.lua:244: in function </usr/lib/prosody/modules/mod_presence.lua:231> (...tail calls...) /usr/lib/prosody/util/events.lua:81: in function </usr/lib/prosody/util/events.lua:77> (...tail calls...) /usr/lib/prosody/core/stanza_router.lua:188: in upvalue 'core_post_stanza' /usr/lib/prosody/core/stanza_router.lua:128: in upvalue 'core_process_stanza' /usr/lib/prosody/modules/mod_s2s.lua:818: in upvalue 'func' /usr/lib/prosody/util/async.lua:149: in function </usr/lib/prosody/util/async.lua:147>

---
labels:
summary: 'Test account credentials using HTTP'
...

Introduction
------------

This module lets you test whether a set of credentials are valid,
using Prosody's configured authentication mechanism.

This is useful as an easy way to allow other (e.g. non-XMPP) applications
to authenticate users using their XMPP credentials.

Syntax
------

To test credentials, issue a simple GET request with HTTP basic auth:

    GET /auth_check HTTP/1.1
    Authorization: Basic <base64(jid:password)>

Prosody will return a 2xx code on success (user exists and credentials are
correct), or 401 if the credentials are invalid. Any other code may be returned
if there is a problem handling the request.

### Example usage

Here follows some example usage using `curl`.

    curl http://prosody.local:5280/auth_check -u user@example.com:secr1t