/// <summary>
/// Starts the HTTP listener.
/// </summary>
private void StartHttpListener()
{
try
{
//create http listener
_logger.WriteMessage("Service", $"Creating HTTP listener..");
_httpListener = new SimpleHttpListener(_config.ListenPort, _errorHandler);
//add statistics handler
_logger.WriteMessage("Service", $"Registering 'Statistics' HTTP handler..");
StatisticsHandler statisticsHandler = new StatisticsHandler(_errorHandler, _config, _logger, _serviceStats, _statsWriters);
_httpListener.RegisterHandler("statistics", statisticsHandler);
//add config handler
_logger.WriteMessage("Service", $"Registering 'Config' HTTP handler..");
ConfigHandler configHandler = new ConfigHandler(_errorHandler, _config, _logger, _serviceStats);
_httpListener.RegisterHandler("config", configHandler);
//add gpio handler
_logger.WriteMessage("Service", $"Registering 'GPIO' HTTP handler..");
GpioHandler gpioHandler = new GpioHandler(_errorHandler, _config, _logger, _serviceStats, _gpio);
_httpListener.RegisterHandler("gpio", gpioHandler);
//pre-init
_logger.WriteMessage("Service", $"Running pre-init handler functions..");
foreach (IHttpHandler handler in _httpListener.GetHandlers())
{
handler.PreInitialize();
}
//start http listener
_logger.WriteMessage("Service", $"Starting HTTP listener on port {_config.ListenPort}..");
_httpListener.Start();
//pre-init
_logger.WriteMessage("Service", $"Running post-init handler functions..");
foreach (IHttpHandler handler in _httpListener.GetHandlers())
{
handler.PostInitialize();
}
//success
_logger.WriteMessage("Service", $"HTTP listener successfully connected");
//state
_serviceState.SetState(ServiceStateType.Up);
}
catch (Exception ex)
{
_errorHandler?.LogError(ex);
}
}
public async Task RunAsync()
{
_listener.Start();
while (!_stopRequired)
{
try
{
MyHttpListenerContext context = await _listener.GetContextAsync().ConfigureAwait(false);
if (context == null)
{
return; // Слушатель был остановлен.
}
if (context.Request.Method == "GET" && context.Request.Uri.LocalPath.StartsWith("/.well-known/acme-challenge/"))
{
Log.Information($"Принят HTTP запрос: {context.Request.Uri.Scheme}://{context.Request.Uri.Host}/...");
MyHttpListenerResponse response = context.Response;
response.ContentType = "plain/text";
byte[] content = Encoding.ASCII.GetBytes(_keyAuthString);
response.ContentLength64 = content.Length;
using (response.OutputStream)
{
await response.OutputStream.WriteAsync(content, 0, content.Length).ConfigureAwait(false);
await response.OutputStream.CloseAsync().ConfigureAwait(false);
}
_tcs.TrySetResult(0);
Log.Information($"Отправлен ключ подтверждения.");
}
}
catch (HttpListenerClosedException)
{
// Грациозная остановка.
break;
}
catch when(_stopRequired)
{
// Грязная остановка.
break;
}
}
}
