How can I retrieve the users full name using LDAP?

Hi,

I have an asp.net page in VB that I am trying to populate the user field with the full name. The code below gets me the domain/username but I need the actual name of the person. How would I get that using LDAP and populate a text box? Thanks!

test = Right(Request.ServerVariables("REMOTE_USER"), 5)

Re: How can I retrieve the users full name using LDAP?

You will just need to remove the "Domain\" part from the REMOTE_USER to get the person's username by itself then use it to search ldap using the samaccountname and return the displayname. For example:

DirectoryEntry de = new DirectoryEntry("LDAP://...", ldapusername, password);
DirectorySearcher ds = new DirectorySearcher(de);
ds.PropertiesToLoad.Add("displayname");
ds.SearchScope = SearchScope.Subtree;
ds.Filter = "(sAMAccountName=" & username & ")";
SearchResult result = ds.FindOne();

If the user is found you can return the displayname with result.properties("displayname").value. I can probably post a complete function later.

Re: How can I retrieve the users full name using LDAP?

Thanks! Can you convert that to VB for me? Sorry I am kinda new to this. Thank you so much

Re: How can I retrieve the users full name using LDAP?

Dim entry As DirectoryEntry = New DirectoryEntry(LDAPstr, LDAPuser, LDAPpass)
		Dim FullName as string
		Try
			Dim obj As Object = entry.NativeObject
			Dim search As DirectorySearcher = New DirectorySearcher(entry)
			
			search.Filter = "(&(objectClass=user)(SAMAccountName=" & UserName & "))"
			search.PropertiesToLoad.Add("cn")
							
			Dim result As SearchResult = search.FindOne()
			If (result Is Nothing) Then
				FullName = "not found"
			Else
				FullName = result.Properties("cn")(0).toString()h
			End If
		Catch ex As Exception
		End Try
		Return FullName
	End Function

Here is a function I use to pull the CN which you can also use instead of displayname. But you can use either.

Re: How can I retrieve the users full name using LDAP?

Thank you, I am getting a directory entry is not defined. Do I need to add a reference?

Re: How can I retrieve the users full name using LDAP?

yes add this to your page references

<% @ Import Namespace = "System.DirectoryServices" %>

Re: How can I retrieve the users full name using LDAP?

Thank you for your help, I have it working on my computer but if I try externally I am getting the error Unable to cast object of type 'System.DirectoryServices.AccountManagement.GroupPrincipal' to type 'System.DirectoryServices.AccountManagement.UserPrincipal'

Any ideas on this?

Imports System.Security
Imports System.Security.Principal.WindowsIdentity
Imports Microsoft.Win32
Imports System.DirectoryServices.AccountManagement
Imports System.DirectoryServices.AccountManagement.UserPrincipal
Imports System.Web.Hosting
 
Partial Class _Default
    Inherits System.Web.UI.Page
    Dim UserAccount As String
    Dim test As String
 
 
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        test = Right(Request.ServerVariables("REMOTE_USER"), 5)
 
        Dim userFullName As String = UserPrincipal.Current.DisplayName
        EmployeeTextBox.Text = userFullName
        ReportingPeriodTextBox.Text = Now.Year
    End Sub
 
 
 
 
 
End Class.

Re: How can I retrieve the users full name using LDAP?

You probably need to make sure the code is running under permissions that can access the ldap. Either with impersonnation in the web.config or as I have in my function, passing the username and password with the directoryentry

Re: How can I retrieve the users full name using LDAP?

If I do impersonation will I still need a username and password?

Re: How can I retrieve the users full name using LDAP?

In order to make sure the code is run under that specific account, yes.

I also posted this link in your other thread, should answer some questions, http://forums.asp.net/t/897609.aspx