private static AppFunc Fail(int status, string body, string headerName = null, string headerValue = null)
{
return env =>
{
Request request = new Request(env);
Response response = new Response(env);
response.StatusCode = status;
response.Headers
.SetHeader("Content-Type", "text/plain")
.SetHeader("Content-Length", body.Length.ToString(CultureInfo.InvariantCulture))
.SetHeader("X-Cascade", "pass");
if (headerName != null && headerValue != null)
{
response.Headers.SetHeader(headerName, headerValue);
}
if ("HEAD".Equals(request.Method, StringComparison.OrdinalIgnoreCase))
{
return TaskHelpers.Completed();
}
return response.WriteAsync(body);
};
}
public static Task Call(IDictionary<string, object> env)
{
Response response = new Response(env)
{
StatusCode = 404,
ReasonPhrase = "Not Found",
ContentType = "text/html",
ContentLength = body.Length,
};
if ("HEAD".Equals(new Request(env).Method, StringComparison.OrdinalIgnoreCase))
{
return TaskHelpers.Completed();
}
return response.WriteAsync(body);
}