public async Task HandleSBAns(string[] contents, SBClient client)
{
var list = NSClients.Where(x => x.UserHandle == contents[2]).Select(nsc => nsc.SBAuths).FirstOrDefault();
if (list == null || !list.Contains(contents[3]))
{
await client.SendAsync($"911 {contents[1]}", true);
return;
}
var session = Sessions.Where(x => x.ID.ToString() == contents[4]).FirstOrDefault();
if (session == null)
{
client.Connection.Client.Close();
return;
}
var nsc = NSClients.Where(x => x.UserHandle == contents[2]).FirstOrDefault();
nsc.SBAuths.Remove(contents[3]);
client.NSClient = nsc;
client.AuthString = contents[3];
session.Clients.Add(client);
client.Session = session;
for (int i = 0; i < session.Clients.Count; i++)
{
var participant = session.Clients[i];
if (participant == client)
{
continue;
}
var partUser = await client.NSClient.Database.Users.FindAsync(participant.NSClient.UserID);
await client.SendAsync($"IRO {contents[1]} {i + 1} {session.Clients.Count - 1} {partUser.Email} {partUser.SafeNickname}");
}
await client.SendAsync($"ANS {contents[1]} OK");
var usr = await client.NSClient.Database.Users.FindAsync(nsc.UserID);
foreach (var cl in session.Clients.Where(x => x != client))
{
await cl.SendAsync($"JOI {usr.Email} {usr.SafeNickname}");
}
}
public async Task RequireSBAuthentication(string[] contents, SBClient client)
{
if (client.NSClient == null)
{
await client.SendAsync("715 " + contents[1], true);
}
}
public async Task HandleSBUsr(string[] contents, SBClient client)
{
var list = NSClients.Where(x => x.UserHandle == contents[2]).Select(nsc => nsc.SBAuths).FirstOrDefault();
if (list == null || !list.Contains(contents[3]))
{
await client.SendAsync($"911 {contents[1]}", true);
return;
}
var nsc = NSClients.Where(x => x.UserHandle == contents[2]).FirstOrDefault();
nsc.SBAuths.Remove(contents[3]);
client.NSClient = nsc;
client.AuthString = contents[3];
await client.SendAsync($"USR {contents[1]} OK {nsc.UserHandle} {(await nsc.Database.Users.FindAsync(nsc.UserID)).SafeNickname}");
}
public async Task HandleSBCal(string[] contents, SBClient client)
{
await RequireSBAuthentication(contents, client);
if (!contents[2].IsEmail())
{
await client.SendAsync($"208 {contents[1]}", true);
return;
}
var user = await client.NSClient.Database.Users.FindAsync(client.NSClient.UserID);
var match = NSClients.Where(x => x.UserHandle == contents[2]).FirstOrDefault();
if (match == null || match.Presence == Presence.Hidden)
{
await client.SendAsync($"217 {contents[1]}", true);
return;
}
var matchUser = await client.NSClient.Database.Users.FindAsync(match.UserID);
Session session = client.Session ?? new Session
{
ID = (uint)RandomNumberGenerator.GetInt32(10000000),
};
if (session.Clients.Contains(client))
{
await client.SendAsync($"215 {contents[1]}", true);
return;
}
if ((matchUser.MessagePrivacy && userManager.AreUsersInGroup(ContactList.BlockList, user, matchUser)) ||
(!matchUser.MessagePrivacy && userManager.AreUsersInGroup(ContactList.AllowList, user, matchUser)))
{
await client.SendAsync($"216 {contents[1]}", true);
return;
}
session.Clients.Add(client);
client.Session = session;
Sessions.Add(session);
var authString = $"{(DateTime.UtcNow - new DateTime(1970, 1, 1)).TotalSeconds}.{RandomNumberGenerator.GetInt32(999999)}";
match.SBAuths.Add(authString);
// AL and is on block list
// OR
// BL and it isn't on Allow List.
if ((matchUser.MessagePrivacy && userManager.AreUsersInGroup(ContactList.BlockList, user, matchUser)) ||
(!matchUser.MessagePrivacy && userManager.AreUsersInGroup(ContactList.AllowList, user, matchUser)))
{
await client.SendAsync($"216 {contents[1]}", true);
return;
}
await match.SendAsync($"RNG {session.ID} {configuration.GetValue<string>("Switchboard")} CKI {authString} {matchUser.Email} {matchUser.SafeNickname}");
await client.SendAsync($"CAL {contents[1]} RINGING 0");
}