public void DownloadAvatar(Jid userId, string avatarId, string avatarType, RequestAvatarCallback finished)
{
PubSubIq dataiq = new PubSubIq(IqType.get, userId, Program.Jabber.conn.MyJID);
dataiq.PubSub.Items = new Items("urn:xmpp:avatar:data");
dataiq.PubSub.Items.AddItem(new Item(avatarId));
Program.Jabber.conn.IqGrabber.SendIq(dataiq, (IqCB)((object sender_3, IQ result2, object unused_4) => {
if (result2.Type != IqType.result)
{
finished(false, null); return;
}
Element data = result2.SelectSingleElement("data", true);
byte[] imageBytes = Convert.FromBase64String(data.Value);
Image img;
switch (avatarType)
{
case "image/webp":
var dec = new Imazen.WebP.SimpleDecoder();
img = dec.DecodeFromBytes(imageBytes, imageBytes.Length);
break;
default:
img = Image.FromStream(new MemoryStream(imageBytes));
break;
}
string fileName = GetAvatarFilename(userId);
img.Save(fileName, ImageFormat.Png);
finished(true, fileName);
}));
}
public void RequestAvatar(Jid userId, RequestAvatarCallback finished)
{
if (dontRequestIds.Contains(userId.ToString()))
{
return;
}
dontRequestIds.Add(userId.ToString());
PubSubIq metaiq = new PubSubIq(IqType.get, userId, Program.Jabber.conn.MyJID);
metaiq.PubSub.Items = new Items("urn:xmpp:avatar:metadata");
Program.Jabber.conn.IqGrabber.SendIq(metaiq, (IqCB)((object unused_1, IQ result, object unused_2) => {
if (result.Type != IqType.result)
{
finished(false, null); return;
}
Element info = result.SelectSingleElement("info", true);
if (info == null || !info.HasAttribute("id") || !info.HasAttribute("type"))
{
finished(false, null); return;
}
this.DownloadAvatar(userId, info.GetAttribute("id"), info.GetAttribute("type"), finished);
}));
}