如何获取用户域以创建主体上下文asp.net

Question

Using .Net 4.0 The line of code to create the PrincipalContext is:

PrincipalContext context = new PrincipalContext(ContextType.Domain, "domain");

A while back I saw a code snippet where you don't have to specify the domain name but instead use a system or httpcontext variable to pass in the domain name. It was something like user.logondomain but I can't find it any more. It was not striping the domain off the user.identity.name.

This is using windows authentication in an ASP.NET web app.

Answer 1

This should work:

string domain = "defaultDomain";
string[] splittedAuth = Request.ServerVariables["LOGON_USER"].Split('\\');
domain = (splittedAuth.Count() > 1) ? splittedAuth[0] : domain;
PrincipalContext context = new PrincipalContext(ContextType.Domain, domain);

If you were referring to the Environment.UserDomainName Property , this is definitely not what you need, as it will return the domain of the account under which the code is executed, which is not the scenario for ASP.NET.