mod_pubsub_text_interface: A chat interface to PubSub 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.

<tr>
  <th>What is {x} {op} {y}?</th><td>
    <input name="captcha_challenge" type="hidden" value="{challenge}">
    <input name="captcha_reply" pattern="[0-9]+" required type="number">
  </td></tr>