/// <summary>
/// Starts the listener and request processing threads.
/// </summary>
internal void Start(System.Net.HttpListener listener, AppFunc appFunc, IList <IDictionary <string, object> > addresses,
IDictionary <string, object> capabilities, LoggerFactoryFunc loggerFactory)
{
Contract.Assert(_appFunc == null); // Start should only be called once
Contract.Assert(listener != null);
Contract.Assert(appFunc != null);
Contract.Assert(addresses != null);
_listener = listener;
_appFunc = appFunc;
_loggerFactory = loggerFactory;
if (_loggerFactory != null)
{
_logger = _loggerFactory(typeof(OwinHttpListener).FullName);
}
_basePaths = new List <string>();
foreach (var address in addresses)
{
// build url from parts
string scheme = address.Get <string>("scheme") ?? Uri.UriSchemeHttp;
string host = address.Get <string>("host") ?? "localhost";
string port = address.Get <string>("port") ?? "5000";
string path = address.Get <string>("path") ?? string.Empty;
// if port is present, add delimiter to value before concatenation
if (!string.IsNullOrWhiteSpace(port))
{
port = ":" + port;
}
// Assume http(s)://+:9090/BasePath/, including the first path slash. May be empty. Must end with a slash.
if (!path.EndsWith("/", StringComparison.Ordinal))
{
// Http.Sys requires that the URL end in a slash
path += "/";
}
_basePaths.Add(path);
// add a server for each url
string url = scheme + "://" + host + port + path;
_listener.Prefixes.Add(url);
}
_capabilities = capabilities;
_disconnectHandler = new DisconnectHandler(_listener);
if (!_listener.IsListening)
{
_listener.Start();
_disconnectHandler.Initialize();
}
OffloadStartNextRequest();
}
internal static void LogException(LoggerFunc logger, string location, Exception exception)
{
if (logger == null)
{
Debug.WriteLine(exception);
}
else
{
logger(TraceEventType.Error, 0, location, exception, LogStateAndError);
}
}
internal static void LogInfo(LoggerFunc logger, string data)
{
if (logger == null)
{
Debug.WriteLine(data);
}
else
{
logger(TraceEventType.Information, 0, data, null, LogState);
}
}
internal static void LogException(LoggerFunc logger, string location, Exception exception)
{
if (logger == null)
{
Debug.WriteLine(exception);
}
else
{
logger(TraceEventType.Error, 0, location, exception, LogStateAndError);
}
}
internal static void LogInfo(LoggerFunc logger, string data)
{
if (logger == null)
{
Debug.WriteLine(data);
}
else
{
logger(TraceEventType.Information, 0, data, null, LogState);
}
}
private static void DetectWebSocketSupport(IDictionary <string, object> properties)
{
// There is no explicit API to detect server side websockets, just check for v4.5 / Win8.
// Per request we can provide actual verification.
if (Environment.OSVersion.Version >= new Version(6, 2))
{
var capabilities = properties.Get <CapabilitiesDictionary>(Constants.ServerCapabilitiesKey);
capabilities[Constants.WebSocketVersionKey] = Constants.WebSocketVersion;
}
else
{
var loggerFactory = properties.Get <LoggerFactoryFunc>(Constants.ServerLoggerFactoryKey);
LoggerFunc logger = LogHelper.CreateLogger(loggerFactory, typeof(OwinServerFactory));
LogHelper.LogInfo(logger, "No WebSocket support detected, Windows 8 or later is required.");
}
}
internal DisconnectHandler(System.Net.HttpListener listener, LoggerFunc logger)
{
_connectionCancellationTokens = new ConcurrentDictionary <ulong, ConnectionCancellation>();
_listener = listener;
_logger = logger;
// Get the request queue handle so we can register for disconnect
FieldInfo requestQueueHandleField = typeof(System.Net.HttpListener).GetField("m_RequestQueueHandle", BindingFlags.Instance | BindingFlags.NonPublic);
// Get the connection id field info from the request object
_connectionIdField = typeof(HttpListenerRequest).GetField("m_ConnectionId", BindingFlags.Instance | BindingFlags.NonPublic);
if (requestQueueHandleField != null && requestQueueHandleField.FieldType == typeof(CriticalHandle))
{
_requestQueueHandle = (CriticalHandle)requestQueueHandleField.GetValue(_listener);
}
if (_connectionIdField == null || _requestQueueHandle == null)
{
LogHelper.LogInfo(_logger, "Unable to resolve handles. Disconnect notifications will be ignored.");
}
}
internal DisconnectHandler(System.Net.HttpListener listener, LoggerFunc logger)
{
_connectionCancellationTokens = new ConcurrentDictionary<ulong, ConnectionCancellation>();
_listener = listener;
_logger = logger;
// Get the request queue handle so we can register for disconnect
FieldInfo requestQueueHandleField = typeof(System.Net.HttpListener).GetField("m_RequestQueueHandle", BindingFlags.Instance | BindingFlags.NonPublic);
// Get the connection id field info from the request object
_connectionIdField = typeof(HttpListenerRequest).GetField("m_ConnectionId", BindingFlags.Instance | BindingFlags.NonPublic);
if (requestQueueHandleField != null && requestQueueHandleField.FieldType == typeof(CriticalHandle))
{
_requestQueueHandle = (CriticalHandle)requestQueueHandleField.GetValue(_listener);
}
if (_connectionIdField == null || _requestQueueHandle == null)
{
LogHelper.LogInfo(_logger, "Unable to resolve handles. Disconnect notifications will be ignored.");
}
}
public static void Main(string[] args)
{
// Build the chain of responsibility
Logger Logger, LoggerFunc, LoggerWarnErr;
Logger = new ConsoleLogger(LogLevel.ALL);
LoggerFunc = Logger.SetNext(new EmailLogger(LogLevel.FUNCTIONAL_ERR | LogLevel.FUNCTIONAL_MSG));
LoggerWarnErr = LoggerFunc.SetNext(new FileLogger(LogLevel.WARN | LogLevel.ERR));
// Handled by ConsoleLogger since the console has a loglevel of all
Logger.Message("Entering function", LogLevel.DBG);
Logger.Message("Data retrieved", LogLevel.INFO);
// Handled by ConsoleLogger and FileLogger - Warning & Error
Logger.Message("Warning empty field", LogLevel.WARN);
Logger.Message("Error getting data", LogLevel.ERR);
// Handled by ConsoleLogger and EmailLogger - functional error
Logger.Message("Error calculating events", LogLevel.FUNCTIONAL_ERR);
// Handled by ConsoleLogger and EmailLogger
Logger.Message("Date is not valid", LogLevel.FUNCTIONAL_MSG);
}
public YogaConfig(LoggerFunc logger = null)
{
Logger = logger ?? LogToConsole;
}
public static void YGConfigSetLogger(YogaConfig config, LoggerFunc logger) => config.LoggerFunc = logger;
/// <summary>
/// Starts the listener and request processing threads.
/// </summary>
internal void Start(System.Net.HttpListener listener, AppFunc appFunc, IList<IDictionary<string, object>> addresses,
IDictionary<string, object> capabilities, LoggerFactoryFunc loggerFactory)
{
Contract.Assert(_appFunc == null); // Start should only be called once
Contract.Assert(listener != null);
Contract.Assert(appFunc != null);
Contract.Assert(addresses != null);
_listener = listener;
_appFunc = appFunc;
_loggerFactory = loggerFactory;
if (_loggerFactory != null)
{
_logger = _loggerFactory(typeof(OwinHttpListener).FullName);
}
_basePaths = new List<string>();
foreach (var address in addresses)
{
// build url from parts
string scheme = address.Get<string>("scheme") ?? Uri.UriSchemeHttp;
string host = address.Get<string>("host") ?? "localhost";
string port = address.Get<string>("port") ?? "5000";
string path = address.Get<string>("path") ?? string.Empty;
// if port is present, add delimiter to value before concatenation
if (!string.IsNullOrWhiteSpace(port))
{
port = ":" + port;
}
// Assume http(s)://+:9090/BasePath/, including the first path slash. May be empty. Must end with a slash.
if (!path.EndsWith("/", StringComparison.Ordinal))
{
// Http.Sys requires that the URL end in a slash
path += "/";
}
_basePaths.Add(path);
// add a server for each url
string url = scheme + "://" + host + port + path;
_listener.Prefixes.Add(url);
}
_capabilities = capabilities;
_disconnectHandler = new DisconnectHandler(_listener);
if (!_listener.IsListening)
{
_listener.Start();
_disconnectHandler.Initialize();
}
OffloadStartNextRequest();
}
