mirror of https://github.com/TakeV-Lambda/dino.git
80 lines
3.2 KiB
Vala
80 lines
3.2 KiB
Vala
using Xmpp.Core;
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namespace Xmpp.Bind {
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private const string NS_URI = "urn:ietf:params:xml:ns:xmpp-bind";
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/** The parties to a stream MUST consider resource binding as mandatory-to-negotiate. (RFC6120 7.3.1) */
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public class Module : XmppStreamNegotiationModule {
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public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, "bind_module");
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private string requested_resource;
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public signal void bound_to_resource(XmppStream stream, string my_jid);
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public Module(string requested_resource) {
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this.requested_resource = requested_resource;
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}
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public void iq_response_stanza(XmppStream stream, Iq.Stanza iq) {
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var flag = stream.get_flag(Flag.IDENTITY);
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if (flag == null || flag.finished) return;
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if (iq.type_ == Iq.Stanza.TYPE_RESULT) {
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flag.my_jid = iq.stanza.get_subnode("jid", NS_URI, true).get_string_content();
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flag.finished = true;
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bound_to_resource(stream, flag.my_jid);
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}
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}
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public void received_features_node(XmppStream stream) {
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if (stream.is_setup_needed()) return;
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var bind = stream.features.get_subnode("bind", NS_URI);
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if (bind != null) {
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var flag = new Flag();
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StanzaNode bind_node = new StanzaNode.build("bind", NS_URI).add_self_xmlns();
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bind_node.put_node(new StanzaNode.build("resource", NS_URI).put_node(new StanzaNode.text(requested_resource)));
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stream.get_module(Iq.Module.IDENTITY).send_iq(stream, new Iq.Stanza.set(bind_node), on_bind_response);
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stream.add_flag(flag);
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}
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}
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public override void attach(XmppStream stream) {
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Iq.Module.require(stream);
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stream.received_features_node.connect(this.received_features_node);
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}
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public override void detach(XmppStream stream) {
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stream.received_features_node.disconnect(this.received_features_node);
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}
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public static void require(XmppStream stream) {
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if (stream.get_module(IDENTITY) == null) stream.add_module(new Bind.Module(""));
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}
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public override bool mandatory_outstanding(XmppStream stream) {
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return !stream.has_flag(Flag.IDENTITY) || !stream.get_flag(Flag.IDENTITY).finished;
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}
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public override bool negotiation_active(XmppStream stream) {
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return stream.has_flag(Flag.IDENTITY) && !stream.get_flag(Flag.IDENTITY).finished;
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}
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public override string get_ns() { return NS_URI; }
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public override string get_id() { return IDENTITY.id; }
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private static void on_bind_response(XmppStream stream, Iq.Stanza iq) {
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stream.get_module(Bind.Module.IDENTITY).iq_response_stanza(stream, iq);
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}
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}
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public class Flag : XmppStreamFlag {
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public static FlagIdentity<Flag> IDENTITY = new FlagIdentity<Flag>(NS_URI, "bind");
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public string? my_jid;
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public bool finished = false;
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public override string get_ns() { return NS_URI; }
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public override string get_id() { return IDENTITY.id; }
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}
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}
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