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using Gee;
using Xmpp.Core;
namespace Xmpp.Roster {
private const string NS_URI = "jabber:iq:roster";
public class Module : XmppStreamModule, Iq.Handler {
public const string ID = "roster_module";
public signal void received_roster(XmppStream stream, Collection<Item> roster);
public signal void item_removed(XmppStream stream, Item roster_item);
public signal void item_updated(XmppStream stream, Item roster_item);
public bool interested_resource = true;
/**
* Add a jid to the roster
*/
public void add_jid(XmppStream stream, string jid, string? handle = null) {
Item roster_item = new Item();
roster_item.jid = jid;
if (handle != null) {
roster_item.name = handle;
}
roster_set(stream, roster_item);
}
/**
* Remove a jid from the roster
*/
public void remove_jid(XmppStream stream, string jid) {
Item roster_item = new Item();
roster_item.jid = jid;
roster_item.subscription = Item.SUBSCRIPTION_REMOVE;
roster_set(stream, roster_item);
}
/**
* Set a handle for a jid
* @param handle Handle to be set. If null, any handle will be removed.
*/
public void set_jid_handle(XmppStream stream, string jid, string? handle) {
Item roster_item = new Item();
roster_item.jid = jid;
if (handle != null) {
roster_item.name = handle;
}
roster_set(stream, roster_item);
}
public void on_iq_set(XmppStream stream, Iq.Stanza iq) {
StanzaNode? query_node = iq.stanza.get_subnode("query", NS_URI);
if (query_node == null) return;
Flag flag = Flag.get_flag(stream);
Item item = new Item.from_stanza_node(query_node.get_subnode("item", NS_URI));
switch (item.subscription) {
case Item.SUBSCRIPTION_REMOVE:
flag.roster_items.unset(item.jid);
item_removed(stream, item);
break;
default:
flag.roster_items[item.jid] = item;
item_updated(stream, item);
break;
}
}
public void on_iq_get(XmppStream stream, Iq.Stanza iq) { }
public static Module? get_module(XmppStream stream) {
return (Module?) stream.get_module(NS_URI, ID);
}
public static void require(XmppStream stream) {
if (get_module(stream) == null) stream.add_module(new Module());
}
public override void attach(XmppStream stream) {
Iq.Module.require(stream);
Iq.Module.get_module(stream).register_for_namespace(NS_URI, this);
Presence.Module.require(stream);
Presence.Module.get_module(stream).initial_presence_sent.connect(roster_get);
stream.add_flag(new Flag());
}
public override void detach(XmppStream stream) {
Presence.Module.get_module(stream).initial_presence_sent.disconnect(roster_get);
}
internal override string get_ns() { return NS_URI; }
internal override string get_id() { return ID; }
private void roster_get(XmppStream stream) {
Flag.get_flag(stream).iq_id = random_uuid();
StanzaNode query_node = new StanzaNode.build("query", NS_URI).add_self_xmlns();
Iq.Stanza iq = new Iq.Stanza.get(query_node, Flag.get_flag(stream).iq_id);
Iq.Module.get_module(stream).send_iq(stream, iq, new IqResponseListenerImpl());
}
private class IqResponseListenerImpl : Iq.ResponseListener, Object {
public void on_result(XmppStream stream, Iq.Stanza iq) {
Flag flag = Flag.get_flag(stream);
if (iq.id == flag.iq_id) {
StanzaNode? query_node = iq.stanza.get_subnode("query", NS_URI);
foreach (StanzaNode item_node in query_node.sub_nodes) {
Item item = new Item.from_stanza_node(item_node);
flag.roster_items[item.jid] = item;
}
Module.get_module(stream).received_roster(stream, flag.roster_items.values);
}
}
}
private void roster_set(XmppStream stream, Item roster_item) {
StanzaNode query_node = new StanzaNode.build("query", NS_URI).add_self_xmlns()
.put_node(roster_item.stanza_node);
Iq.Stanza iq = new Iq.Stanza.set(query_node);
Iq.Module.get_module(stream).send_iq(stream, iq, null);
}
}
}
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