/// <summary>
/// Starts a new MiniProfiler and associates it with the current <see cref="HttpContext.Current"/>.
/// </summary>
public override MiniProfiler Start()
{
var context = HttpContext.Current;
if (context == null)
{
return(null);
}
var url = context.Request.Url;
var path = context.Request.AppRelativeCurrentExecutionFilePath.Substring(1).ToUpperInvariant();
var name = context.Request.Url.Segments[context.Request.Url.Segments.Length - 1].ToString();
var result = new MiniProfiler(name);
Current = result;
SetProfilerActive(result);
result.Action = HttpContext.Current.Request.HttpMethod.ToUpper();
result.Url = url.OriginalString;
result.Event = GetEvent();
result.Referer = context.Request.ServerVariables["HTTP_REFERER"];
result.ClientIP = context.Request.ServerVariables["REMOTE_ADDR"];
result.ClientAgent = context.Request.ServerVariables["HTTP_USER_AGENT"];
result.RequestID = Guid.NewGuid().ToString().ToUpper();
result.RequestSize = HttpContext.Current.Request.TotalBytes;
result.ActiveUser = "";
result.Exception = "";
// Read cookie with client timings
if (HttpContext.Current != null && HttpContext.Current.Request != null)
{
HttpCookie trackingCookie = HttpContext.Current.Request.Cookies["CorpNetProfilerTracking"];
if (trackingCookie != null)
{
string[] parts = trackingCookie.Value.Split('|');
// Malformed?
if (parts.Length == 9)
{
string requestID = parts[0].ToString();
Guid guid;
// Only save if the requestID is a valid GUID
if (Guid.TryParse(requestID, out guid))
{
result.ClientRequestID = requestID;
result.ClientTotalDuration = parts[1].ToDecimal();
result.ClientRedirectDuration = parts[2].ToDecimal();
result.ClientDnsDuration = parts[3].ToDecimal();
result.ClientConnectionDuration = parts[4].ToDecimal();
result.ClientRequestDuration = parts[5].ToDecimal();
result.ClientResponseDuration = parts[6].ToDecimal();
result.ClientDomDuration = parts[7].ToDecimal();
result.ClientLoadDuration = parts[8].ToDecimal();
}
}
}
}
// Add session ID
if (HttpContext.Current != null && HttpContext.Current.Session != null)
{
result.SessionID = HttpContext.Current.Session.SessionID;
}
// Add header id response header (for tracing on IIS)
context.Response.AddHeader("Request-ID", result.RequestID);
// Obtain activeuser from session
if (!String.IsNullOrEmpty(Settings.ActiveUserLocator))
{
result.ActiveUser = GetActiveUser(Settings.ActiveUserLocator);
}
return(result);
}
public static IDisposable Step(this MiniProfiler profiler, string name)
{
return(profiler == null ? null : profiler.StepImpl(name, ""));
}