xmpp-vala/src/module/xep/0425_message_moderation.vala


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namespace Xmpp.Xep.MessageModeration {

    public const string NS_URI = "urn:xmpp:message-moderate:1";


    /**
     * @return whether the moderation was successful
     */
    public static async bool moderate(XmppStream stream, Jid muc_jid, string message_id) {
        try {
            StanzaNode moderate_node = new StanzaNode.build("moderate", NS_URI)
                    .add_self_xmlns()
                    .put_attribute("id", message_id)
                    .put_node(new StanzaNode.build("retract", Xep.MessageRetraction.NS_URI).add_self_xmlns());
            Iq.Stanza iq = new Iq.Stanza.set(moderate_node) { to = muc_jid };

            Iq.Stanza result_stanza = yield stream.get_module(Iq.Module.IDENTITY).send_iq_async(stream, iq);
            return !result_stanza.is_error();
        } catch (IOError e) {
            return false;
        }
    }
}