public override Task Invoke(IOwinContext context)
{
var cookies = new Dictionary <string, string>();
foreach (var pair in context.Request.Cookies)
{
cookies.Add(pair.Key, pair.Value);
}
Context.Current = new Context
{
Cookies = cookies,
};
var response = context.Response;
try
{
return(_Instance.RequestWrapper(() =>
{
var uri = context.Request.Uri;
string path = uri.PathAndQuery;
if (path.Length == 0)
{
throw new MiddlewareException("Path is empty.");
}
if (path == "/favicon.ico")
{
response.StatusCode = 404;
return response.WriteAsync("Not found.");
}
string output = _Instance.GetCachedResponse(context);
if (output == null)
{
TimeSpan invokeDuration;
TimeSpan renderDuration;
output = ProcessRequest(context, out invokeDuration, out renderDuration);
_Instance.OnResponse(context, output, invokeDuration, renderDuration);
}
var task = context.Response.WriteAsync(output);
return task;
}));
}
catch (Exception exception)
{
var targetInvocationException = exception as TargetInvocationException;
if (targetInvocationException != null)
{
exception = targetInvocationException.InnerException;
}
Logger.Error("Request error: {0} ({1})", exception.Message, exception.GetType());
response.StatusCode = 500;
response.ContentType = "text/plain";
string message;
string remoteAddress = context.Request.RemoteIpAddress;
bool isLocal = remoteAddress == "127.0.0.1" || remoteAddress == "::1";
if (exception.GetType() == typeof(MiddlewareException) || isLocal)
{
message = string.Format("{0}\n{1}", exception.Message, exception.StackTrace);
}
else
{
message = "An error occurred.";
}
return(response.WriteAsync(message));
}
finally
{
Context.Current = null;
}
}
