using Gee; using Xmpp.Core; namespace Xmpp.Xep.Pubsub { private const string NS_URI = "http://jabber.org/protocol/pubsub"; private const string NS_URI_EVENT = NS_URI + "#event"; public class Module : XmppStreamModule { public const string ID = "0060_pubsub_module"; public static ModuleIdentity IDENTITY = new ModuleIdentity(NS_URI, ID); private HashMap event_listeners = new HashMap(); public void add_filtered_notification(XmppStream stream, string node, EventListenerDelegate.ResultFunc on_result, Object? reference = null) { stream.get_module(ServiceDiscovery.Module.IDENTITY).add_feature_notify(stream, node); event_listeners[node] = new EventListenerDelegate(on_result, reference); } public void request(XmppStream stream, string jid, string node, RequestResponseListener listener) { // TODO multiple nodes gehen auch Iq.Stanza a = new Iq.Stanza.get(new StanzaNode.build("pubsub", NS_URI).add_self_xmlns().put_node(new StanzaNode.build("items", NS_URI).put_attribute("node", node))); a.to = jid; stream.get_module(Iq.Module.IDENTITY).send_iq(stream, a, new IqRequestResponseListener(listener)); } private class IqRequestResponseListener : Iq.ResponseListener, Object { RequestResponseListener response_listener; public IqRequestResponseListener(RequestResponseListener response_listener) { this.response_listener = response_listener; } public void on_result(XmppStream stream, Iq.Stanza iq) { StanzaNode event_node = iq.stanza.get_subnode("pubsub", NS_URI); StanzaNode items_node = event_node != null ? event_node.get_subnode("items", NS_URI) : null; StanzaNode item_node = items_node != null ? items_node.get_subnode("item", NS_URI) : null; string? node = items_node != null ? items_node.get_attribute("node", NS_URI) : null; string? id = item_node != null ? item_node.get_attribute("id", NS_URI) : null; response_listener.on_result(stream, iq.from, id, item_node != null ? item_node.sub_nodes[0] : null); } } public void publish(XmppStream stream, string? jid, string node_id, string node, string item_id, StanzaNode content) { StanzaNode pubsub_node = new StanzaNode.build("pubsub", NS_URI).add_self_xmlns(); StanzaNode publish_node = new StanzaNode.build("publish", NS_URI).put_attribute("node", node_id); pubsub_node.put_node(publish_node); StanzaNode items_node = new StanzaNode.build("item", NS_URI).put_attribute("id", item_id); items_node.put_node(content); publish_node.put_node(items_node); Iq.Stanza iq = new Iq.Stanza.set(pubsub_node); stream.get_module(Iq.Module.IDENTITY).send_iq(stream, iq, null); } private class IqPublishResponseListener : Iq.ResponseListener, Object { PublishResponseListener response_listener; public IqPublishResponseListener(PublishResponseListener response_listener) { this.response_listener = response_listener; } public void on_result(XmppStream stream, Iq.Stanza iq) { if (iq.is_error()) { response_listener.on_error(stream); } else { response_listener.on_success(stream); } } } public override void attach(XmppStream stream) { Iq.Module.require(stream); Message.Module.require(stream); ServiceDiscovery.Module.require(stream); stream.get_module(Message.Module.IDENTITY).received_message.connect(on_received_message); } public override void detach(XmppStream stream) { stream.get_module(Message.Module.IDENTITY).received_message.disconnect(on_received_message); } public static void require(XmppStream stream) { if (stream.get_module(IDENTITY) == null) stream.add_module(new Module()); } public override string get_ns() { return NS_URI; } public override string get_id() { return ID; } private void on_received_message(XmppStream stream, Message.Stanza message) { StanzaNode event_node = message.stanza.get_subnode("event", NS_URI_EVENT); if (event_node == null) return; StanzaNode items_node = event_node.get_subnode("items", NS_URI_EVENT); if (items_node == null) return; StanzaNode item_node = items_node.get_subnode("item", NS_URI_EVENT); if (item_node == null) return; string node = items_node.get_attribute("node", NS_URI_EVENT); string id = item_node.get_attribute("id", NS_URI_EVENT); if (event_listeners.has_key(node)) { event_listeners[node].on_result(stream, message.from, id, item_node.sub_nodes[0]); } } } public interface RequestResponseListener : Object { public abstract void on_result(XmppStream stream, string jid, string? id, StanzaNode? node); } public class EventListenerDelegate { public delegate void ResultFunc(XmppStream stream, string jid, string id, StanzaNode node); public ResultFunc on_result { get; private set; } private Object reference; public EventListenerDelegate(ResultFunc on_result, Object? reference = null) { this.on_result = on_result; this.reference = reference; } } public interface PublishResponseListener : Object { public abstract void on_success(XmppStream stream); public abstract void on_error(XmppStream stream); } }