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'

#!/bin/bash

IFS=":"
AUTH_OK=1
AUTH_FAILED=0
LOGFILE="/var/log/prosody/auth.log"
USELOG=false

while read ACTION USER HOST PASS ; do

    [ $USELOG == true ] && { echo "Date: $(date) Action: $ACTION User: $USER Host: $HOST Pass: $PASS" >> $LOGFILE; }

    case $ACTION in
	"auth")
	    if [ $USER == "someone" ] ; then
        	echo $AUTH_OK
            else
		echo $AUTH_FAILED
	    fi
	;;
	*)
	    echo $AUTH_FAILED
	;;
    esac

done