Could not fetch windows identity name in web api 2.0

Question

Hi Friends,

I used below code to get windows authentication but it returns empty string after deployed empty string. Yesterday we implimented https certificate after that application failed.

i tried to add impersonate set true and false in web.config but no luck.

string sCurrentUserName = string.Empty;
if (HttpContext.Current.User != null)
{
sCurrentUserName = HttpContext.Current.User.Identity.Name.ToString();
}
if (sCurrentUserName == string.Empty)
sCurrentUserName = System.Security.Principal.WindowsIdentity.GetCurrent().Name;

if (sCurrentUserName != null && sCurrentUserName.Trim().Length > 0)
{
string[] splittedName = sCurrentUserName.Split('\\');
if (splittedName.Length > 0)
{
string sDomain = splittedName[0].ToString();
return (splittedName.Length > 1) ? splittedName[1].ToString().Trim().ToUpper() : splittedName[0].ToString().Trim().ToUpper();
}
}
return string.Empty;

Sachin Singh · Answer

if it is the case then http should have worked , have tried to change https to http to clear your doubts , and do you get the windows popup for unotherized login ? or you are sending credential over jquery or something? BTW windows Authentication doesn't make me sence when you are not on a local network.

Ramachandran M · Answer

Enabled SSL certificate yesterday . doest it cause the issue ??

Sachin Singh · Answer

set your IIS app pool to Local System and test

Ramachandran M · Answer

Sachin Thanks for your valuable reply . i tried below code but all are failed. Do i need to change anything in web config or iis settting ? kindly give a suggestion ? string sCurrentUserName = string.Empty; if (HttpContext.Current.User != null) { sCurrentUserName = HttpContext.Current.User.Identity.Name.ToString(); } if (sCurrentUserName == string.Empty) sCurrentUserName = System.Security.Principal.WindowsIdentity.GetCurrent().Name; if (sCurrentUserName == string.Empty) sCurrentUserName = Environment.UserName;

Sachin Singh · Answer

On a Network Environment.UserName; for windows Authentication enabled (check what works for you) string UserName = System.Security.Principal.WindowsIdentity.GetCurrent().Name; String UserName2 = Request.LogonUserIdentity.Name; String UserName3 = Environment.UserName; string UserName4 = HttpContext.Current.User.Identity.Name; string UserName5 = System.Windows.Forms.SystemInformation.UserName;