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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<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, ID);
private HashMap<string, EventListenerDelegate> event_listeners = new HashMap<string, EventListenerDelegate>();
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);
}
[CCode (has_target = false)] public delegate void OnResult(XmppStream stream, string jid, string? id, StanzaNode? node, Object? storage);
public void request(XmppStream stream, string jid, string node, OnResult listener, Object? store) { // 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, on_received_request_response, Tuple.create(listener, store));
}
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);
}
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]);
}
}
private static void on_received_request_response(XmppStream stream, Iq.Stanza iq, Object o) {
Tuple<OnResult, Object?> tuple = o as Tuple<OnResult, Object?>;
OnResult on_result = tuple.a;
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? id = item_node != null ? item_node.get_attribute("id", NS_URI) : null;
on_result(stream, iq.from, id, item_node != null ? item_node.sub_nodes[0] : null, tuple.b);
}
}
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;
}
}
}
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