public async Task HandleNSChg(string[] contents, NSClient client)
{
await RequireNSAuthentication(contents, client);
var presence = FromPresenceAcronym(contents[2]);
if (presence == null)
{
client.Connection.Client.Close();
}
client.Presence = presence;
await client.SendAsync("CHG " + contents[1] + " " + contents[2]);
foreach (var x in client.Database.Contacts.Where(x => x.User == client.UserID && x.ContactList == ContactList.ReverseList))
{
var target = NSClients.Find(y => y.UserID == x.Target);
if (target != null)
{
var user = await client.Database.Users.FindAsync(x.User);
var uc = NSClients.Find(x => x.UserID == user.ID);
if (uc.Presence == Presence.Hidden)
{
await target.SendAsync($"FLN {user.Email}");
}
else
{
await target.SendAsync($"NLN {ToPresenceAcronym(uc.Presence)} {user.Email} {user.SafeNickname}");
}
}
}
}
public async Task HandleNSOut(string[] contents, NSClient client)
{
foreach (var target in from x in client.Database.Contacts.AsEnumerable().Where(x => x.User == client.UserID && x.ContactList == ContactList.ReverseList)
let target = NSClients.Find(y => y.UserID == x.Target)
where target != null
where target != client
select target)
{
await target.SendAsync($"FLN {client.UserHandle}");
}
client.Connection.Client.Close();
}
public async Task HandleNSSyn(string[] contents, NSClient client)
{
await RequireNSAuthentication(contents, client);
if (!uint.TryParse(contents[2], out var count))
{
await client.SendAsync("715 " + contents[1], true);
}
var user = client.Database.Users.Where(x => x.ID == client.UserID).First();
await client.SendAsync("SYN " + contents[1] + " " + user.SyncID);
var fl = client.Database.Contacts.Where(x => x.ContactList == ContactList.ForwardList && x.User == client.UserID).ToArray();
if (count != user.SyncID)
{
await client.SendAsync($"GTC {contents[1]} {user.SyncID} {(user.Notify ? "A" : "N")}");
await client.SendAsync($"BLP {contents[1]} {user.SyncID} {(user.MessagePrivacy ? "AL" : "BL")}");
await SendList(contents, user, client, ContactList.ForwardList);
await SendList(contents, user, client, ContactList.AllowList);
await SendList(contents, user, client, ContactList.BlockList);
await SendList(contents, user, client, ContactList.ReverseList);
}
foreach (var forward in fl)
{
var u = client.Database.Users.Find(forward.Target);
var uc = NSClients.Find(x => x.UserID == u.ID);
var presence = uc != null?ToPresenceAcronym(uc.Presence) : "FLN";
await client.SendAsync($"ILN {contents[1]} {presence} {u.Email} {u.SafeNickname}");
}
}