public static string GetDomain(this IPrincipal principal)
{
try
{
return(principal.GetSingleOrDefaultClaimValue(CustomClaimTypes.Domain));
}
catch (Exception exc)
{
var principalName = principal.GetName();
var methodName = MethodBase.GetCurrentMethod().Name;
if (principal == null)
{
Trace.TraceError($"{principalName}: {methodName}: principal is NULL");
}
LogException(principalName, methodName, exc);
return(null);
}
}
