Could not fetch windows identity name in web api 2.0

Ramachandran M

5y1.8k.NET

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;

5 Replies

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Sachin Singh5y ago
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.
+1
Ramachandran M5y ago
Enabled SSL certificate yesterday . doest it cause the issue ??
+1
Sachin Singh5y ago
set your IIS app pool to Local System and test
+1
Ramachandran M5y ago
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;
+1
Sachin Singh5y ago
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;
+1