1 files changed, 87 insertions, 0 deletions
diff --git a/xmpp-vala/src/module/xep/0054_vcard/module.vala b/xmpp-vala/src/module/xep/0054_vcard/module.vala
new file mode 100644
index 00000000..58b71d2c
--- /dev/null
+++ b/xmpp-vala/src/module/xep/0054_vcard/module.vala
@@ -0,0 +1,87 @@
+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);
+        }
+    }
+}
+}