protected void RemoveConnection(HttpConnection connection)
{
_ = connection ?? throw new ArgumentNullException(nameof(connection));
if (KeepAliveConnections.Contains(connection))
{
KeepAliveConnections.Remove(connection);
}
AllConnections.Remove(connection);
connection.NetworkClient?.Close();
}
protected virtual async Task ClientStartListen(HttpConnection connection)
{
connection.LastWorkTime = -1;
if (connection.NetworkClient != null && connection.NetworkClient.Connected)
{
WebServerLog.Add(ServerLogType.Information, GetType(), "Connection", "Listen to Connection {0}",
connection.NetworkClient?.Client.RemoteEndPoint);
var task = PrepairProgressTask(connection);
if (task == null)
{
WebServerLog.Add(ServerLogType.Information, GetType(), "Connection",
$"Cannot establish data stream to {connection.Ip}");
RemoveConnection(connection);
return;
}
var start = task.Monitor.Enabled ? DateTime.UtcNow : DateTime.MinValue;
try
{
await ExecuteTaskChain(task).ConfigureAwait(false);
}
catch (Exception e)
{
task.Monitor.Current.Log("Unhandled exception: {0}", e);
WebServerLog.Add(ServerLogType.Error, GetType(), "runtime exception", $"unhandled exception: {e}");
throw;
}
finally
{
if (Settings.MonitoringOutputDirectory is string monitorOut && task.Monitor.Enabled)
{
await task.Monitor.Save(monitorOut, start, task);
}
}
if (task.SwitchProtocolHandler != null)
{
KeepAliveConnections.Remove(connection);
AllConnections.Remove(connection);
task.Dispose();
_ = task.SwitchProtocolHandler();
return;
}
if (task.Request.FieldConnection == HttpConnectionType.KeepAlive)
{
if (!KeepAliveConnections.Contains(connection))
{
KeepAliveConnections.Add(connection);
}
}
else
{
RemoveConnection(connection);
}
connection.LastWorkTime = Environment.TickCount;
task.Dispose();
}
else
{
RemoveConnection(connection);
}
}