prosody virtualhost for onion address

src/freedombone

         exit 65349
     fi
     XMPP_ONION_HOSTNAME=$(cat /var/lib/tor/hidden_service_xmpp/hostname)
-    echo "XMPP onion domain:${XMPP_ONION_HOSTNAME}" >> $COMPLETION_FILE
+    if ! grep -q "${XMPP_ONION_HOSTNAME}" /etc/prosody/conf.avail/xmpp.cfg.lua; then
+        echo "VirtualHost \"${XMPP_ONION_HOSTNAME}\"" >> /etc/prosody/conf.avail/xmpp.cfg.lua
+        echo '    modules_enabled = { "onions" };' >> /etc/prosody/conf.avail/xmpp.cfg.lua
+    fi
+    if ! grep -q "XMPP onion domain" $COMPLETION_FILE; then
+        echo "XMPP onion domain:${XMPP_ONION_HOSTNAME}" >> $COMPLETION_FILE
+    else
+        sed -i "s|XMPP onion domain.*|XMPP onion domain:${XMPP_ONION_HOSTNAME}|g" $COMPLETION_FILE
+    fi
 
     if ! grep -q "Your XMPP password is" /home/$MY_USERNAME/README; then
         if [ -f $IMAGE_PASSWORD_FILE ]; then