private async void RetriveMessages(bool initialization = false)
{
_timer?.Stop();
using (var connection = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp)) {
connection.Connect(_config.Incoming.Host, _config.Incoming.Port);
if (!connection.Connected)
{
Disconnect();
App.Current.Dispatcher.Invoke(
delegate {
DisplayDialog("Błąd", "Nie udało się nawiązać połączenia z serwerem");
}
);
return;
}
Status = "Połączono";
StatusColor = Brushes.Green;
StreamReader reader;
StreamWriter writer;
if (_config.Incoming.SSL)
{
var ssl = new SslStream(new NetworkStream(connection));
try {
ssl.AuthenticateAsClient(_config.Incoming.Host);
} catch {
Disconnect();
App.Current.Dispatcher.Invoke(
delegate {
DisplayDialog("Błąd", "Wystąpił błąd z połączeniem SSL");
}
);
return;
}
reader = new StreamReader(ssl);
writer = new StreamWriter(ssl);
}
else
{
reader = new StreamReader(new NetworkStream(connection));
writer = new StreamWriter(new NetworkStream(connection));
}
IsLoading = true;
await Task.Run(() => {
reader.ReadLine(); // Powitanie serwera
// AUTHENTICATION mode
writer.WriteLine($"USER {_config.Incoming.Username}");
writer.Flush();
reader.ReadLine(); // Potwierdzenie odbioru loginu
writer.WriteLine($"PASS {_config.Incoming.Password}");
writer.Flush();
reader.ReadLine(); // potwierdzenie odbioru hasła
// TRANSACTION mode
writer.WriteLine("UIDL");
writer.Flush();
string strTemp;
var line = 0;
while ((strTemp = reader.ReadLine()) != null)
{
if (".".Equals(strTemp) || strTemp.IndexOf("-ERR") != -1)
{
break;
}
if (line != 0)
{
if (!Mails.Contains(new Mail(strTemp.Substring(0, strTemp.IndexOf(" ")), strTemp.Substring(strTemp.IndexOf(" ") + 1), false)))
{
System.Windows.Application.Current.Dispatcher.Invoke(
delegate {
Mails.Add(new Mail(strTemp.Substring(0, strTemp.IndexOf(" ")), strTemp.Substring(strTemp.IndexOf(" ") + 1), !initialization));
}
);
AllMessagesCounter++;
if (!initialization)
{
NewMessagesCounter++;
}
}
}
else
{
line++;
}
}
writer.WriteLine("QUIT");
writer.Flush();
reader.ReadLine(); // Potwierdzenie rozłączenia sesji
});
IsLoading = false;
}
_timer?.Start();
}