private int CompareLDAPUsers(LDAPUserObject x, LDAPUserObject y)
{
if (x == null)
{
if (y == null)
{
return(0);
}
else
{
return(-1);
}
}
else
{
if (y == null)
{
return(1);
}
else
{
return(string.Compare(x.DisplayName, y.DisplayName));
}
}
}
public IEnumerable <LDAPUserObject> GetUsers(string filter = "")
{
List <LDAPUserObject> users = null;
LDAPUserObject ldapUser;
using (DirectoryEntry de = GetDirectoryEntry())
{
using (DirectorySearcher deSearcher = new DirectorySearcher(de))
{
if (string.IsNullOrEmpty(filter))
{
deSearcher.Filter = "(&(objectCategory=person))";
}
else
{
deSearcher.Filter = filter;
}
deSearcher.PropertiesToLoad.Add("samAccountName");
deSearcher.PropertiesToLoad.Add("displayName");
using (SearchResultCollection results = deSearcher.FindAll())
{
users = new List <LDAPUserObject>();
foreach (SearchResult result in results)
{
ldapUser = new LDAPUserObject();
ldapUser.UserName = result.Properties["samAccountName"][0].ToString();
if (result.Properties["displayName"].Count > 0)
{
ldapUser.DisplayName = result.Properties["displayName"][0].ToString();
}
users.Add(ldapUser);
}
users.Sort(CompareLDAPUsers);
return(users);
}
}
}
}
/// <summary>
/// Returns a list of users and their password expiration date.
/// </summary>
/// <returns></returns>
public IEnumerable <LDAPUserObject> GetUsersPasswordExpiration(string filter = "")
{
List <LDAPUserObject> users = null;
LDAPUserObject ldapUser;
using (DirectoryEntry de = GetDirectoryEntry())
{
using (DirectorySearcher deSearcher = new DirectorySearcher(de))
{
if (filter == "")
{
deSearcher.Filter = "(&(objectCategory=person))";
}
else
{
deSearcher.Filter = filter;
}
deSearcher.PropertiesToLoad.Add("samAccountName");
deSearcher.PropertiesToLoad.Add("displayName");
deSearcher.PropertiesToLoad.Add("pwdLastSet");
using (SearchResultCollection results = deSearcher.FindAll())
{
users = new List <LDAPUserObject>();
foreach (SearchResult result in results)
{
ldapUser = new LDAPUserObject();
ldapUser.UserName = result.Properties["samAccountName"][0].ToString();
ldapUser.DisplayName = result.Properties["displayName"][0].ToString();
ldapUser.PasswordLastSet = DateTime.FromFileTime((long)result.Properties["pwdLastSet"][0]);
users.Add(ldapUser);
}
users.Sort(CompareLDAPUsers);
return(users);
}
}
}
}