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>

# Introduction

This module lets you manage subscriptions to pubsub nodes via simple
chat messages. Subscriptions are always added based on bare JID. The
`include_body` flag is enabled so that a plain text body version of
events can be included, where supported.

# Configuring

``` {.lua}
Component "pubsub.example.com" "pubsub"
modules_enabled = {
    "pubsub_text_interface",
}
```

# Commands

The following commands are supported. Simply send a normal chat message
to the PubSub component where this module is enabled. When subscribing
or unsubscribing, be sure to replace `node` with the node you want to
subscribe to or unsubscribe from.

-   `help` - a help message, listing these commands
-   `list` - list available nodes
-   `subscribe node` - subscribe to a node
-   `unsubscribe node` - unsubscribe from a node
-   `last node` - sends the last published item from the node to you

# Compatibility

Should work with Prosody since 0.9, when
[mod\_pubsub][doc:modules:mod_pubsub] was introduced.

The `last` command is available from Prosody 0.11.