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using Gee;
using Xmpp.Core;
namespace Xmpp.Iq {
private const string NS_URI = "jabber:client";
public class Module : XmppStreamNegotiationModule {
public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, "iq_module");
private HashMap<string, ResponseListener> responseListeners = new HashMap<string, ResponseListener>();
private HashMap<string, ArrayList<Handler>> namespaceRegistrants = new HashMap<string, ArrayList<Handler>>();
[CCode (has_target = false)] public delegate void OnResult(XmppStream stream, Iq.Stanza iq, Object reference);
public void send_iq(XmppStream stream, Iq.Stanza iq, OnResult? listener = null, Object? reference = null) {
try {
stream.write(iq.stanza);
} catch (IOStreamError e) {
print(@"$(e.message)\n");
}
if (listener != null) {
responseListeners[iq.id] = new ResponseListener(listener, reference);
}
}
public void register_for_namespace(string namespace, Handler module) {
if (!namespaceRegistrants.has_key(namespace)) {
namespaceRegistrants.set(namespace, new ArrayList<Handler>());
}
namespaceRegistrants[namespace].add(module);
}
public override void attach(XmppStream stream) {
stream.received_iq_stanza.connect(on_received_iq_stanza);
}
public override void detach(XmppStream stream) {
stream.received_iq_stanza.disconnect(on_received_iq_stanza);
}
public static void require(XmppStream stream) {
if (stream.get_module(IDENTITY) == null) stream.add_module(new Iq.Module());
}
public override bool mandatory_outstanding(XmppStream stream) { return false; }
public override bool negotiation_active(XmppStream stream) { return false; }
public override string get_ns() { return NS_URI; }
public override string get_id() { return IDENTITY.id; }
private void on_received_iq_stanza(XmppStream stream, StanzaNode node) {
Iq.Stanza iq = new Iq.Stanza.from_stanza(node, stream.has_flag(Bind.Flag.IDENTITY) ? stream.get_flag(Bind.Flag.IDENTITY).my_jid : null);
if (iq.type_ == Iq.Stanza.TYPE_RESULT || iq.is_error()) {
if (responseListeners.has_key(iq.id)) {
ResponseListener? listener = responseListeners.get(iq.id);
if (listener != null) {
listener.on_result(stream, iq, listener.reference);
}
responseListeners.unset(iq.id);
}
} else {
ArrayList<StanzaNode> children = node.get_all_subnodes();
if (children.size == 1 && namespaceRegistrants.has_key(children[0].ns_uri)) {
ArrayList<Handler> handlers = namespaceRegistrants[children[0].ns_uri];
foreach (Handler handler in handlers) {
if (iq.type_ == Iq.Stanza.TYPE_GET) {
handler.on_iq_get(stream, iq);
} else if (iq.type_ == Iq.Stanza.TYPE_SET) {
handler.on_iq_set(stream, iq);
}
}
} else {
Iq.Stanza unaviable_error = new Iq.Stanza.error(iq, new StanzaNode.build("service-unaviable", "urn:ietf:params:xml:ns:xmpp-stanzas").add_self_xmlns());
send_iq(stream, unaviable_error);
}
}
}
private class ResponseListener {
public OnResult on_result { get; private set; }
public Object? reference { get; private set; }
public ResponseListener(OnResult on_result, Object? reference = null) {
this.on_result = on_result;
this.reference = reference;
}
}
}
public interface Handler : Object {
public abstract void on_iq_get(XmppStream stream, Iq.Stanza iq);
public abstract void on_iq_set(XmppStream stream, Iq.Stanza iq);
}
}
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