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using Xmpp.Core;
namespace Xmpp.Xep.VCard {
private const string NS_URI = "vcard-temp";
private const string NS_URI_UPDATE = NS_URI + ":x:update";
public class Module : XmppStreamModule {
public const string ID = "0027_current_pgp_usage";
public signal void received_avatar(XmppStream stream, string jid, string id);
private PixbufStorage storage;
public Module(PixbufStorage storage) {
this.storage = storage;
}
public override void attach(XmppStream stream) {
Iq.Module.require(stream);
Presence.Module.require(stream);
Presence.Module.get_module(stream).received_presence.connect(on_received_presence);
}
public override void detach(XmppStream stream) {
Presence.Module.get_module(stream).received_presence.disconnect(on_received_presence);
}
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) stderr.printf("VCardModule required but not attached!\n"); ;
}
public override string get_ns() { return NS_URI; }
public override string get_id() { return ID; }
private void on_received_presence(XmppStream stream, Presence.Stanza presence) {
StanzaNode? update_node = presence.stanza.get_subnode("x", NS_URI_UPDATE);
if (update_node == null) return;
StanzaNode? photo_node = update_node.get_subnode("photo", NS_URI_UPDATE);
if (photo_node == null) return;
string? sha1 = photo_node.get_string_content();
if (sha1 == null) return;
if (storage.has_image(sha1)) {
if (Muc.Flag.get_flag(stream).is_occupant(presence.from)) {
received_avatar(stream, presence.from, sha1);
} else {
received_avatar(stream, get_bare_jid(presence.from), sha1);
}
} else {
Iq.Stanza iq = new Iq.Stanza.get(new StanzaNode.build("vCard", NS_URI).add_self_xmlns());
if (Muc.Flag.get_flag(stream).is_occupant(presence.from)) {
iq.to = presence.from;
} else {
iq.to = get_bare_jid(presence.from);
}
Iq.Module.get_module(stream).send_iq(stream, iq, new IqResponseListenerImpl(this, storage, sha1));
}
}
private class IqResponseListenerImpl : Iq.ResponseListener, Object {
Module outer;
PixbufStorage storage;
string id;
public IqResponseListenerImpl(Module outer, PixbufStorage storage, string id) {
this.outer = outer;
this.id = id;
this.storage = storage;
}
public void on_result(XmppStream stream, Iq.Stanza iq) {
if (iq.is_error()) return;
StanzaNode? vcard_node = iq.stanza.get_subnode("vCard", NS_URI);
if (vcard_node == null) return;
StanzaNode? photo_node = vcard_node.get_subnode("PHOTO", NS_URI);
if (photo_node == null) return;
StanzaNode? binary_node = photo_node.get_subnode("BINVAL", NS_URI);
if (binary_node == null) return;
string? content = binary_node.get_string_content();
if (content == null) return;
storage.store(id, Base64.decode(content));
outer.received_avatar(stream, iq.from, id);
}
}
}
}
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