Directory Services Change Password : Password « Security « C# / C Sharp

1. C# / C Sharp
2. Security
3. Password

Directory Services Change Password

  

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using System.DirectoryServices;
using System.DirectoryServices.ActiveDirectory;
using System.Runtime.InteropServices;

namespace Homelink.AD.Utility
{
    public class Functions
    {
        public static void ChangePassword(string userID, string oldPassword, string newPassword)
        {           
            DirectoryEntry userEntry = Functions.GetUserEntry(userID);
            if (userEntry != null)
            {
                try
                {
                    // Check old password
                    // string userName = userEntry.Properties["CN"][0].ToString();
                    // DirectoryEntry en = new DirectoryEntry(userEntry.Path, userName, oldPassword, AuthenticationTypes.Secure);
                    // string cn = en.Properties["CN"][0].ToString();

                    userEntry.UsePropertyCache = true;
                    userEntry.Invoke("ChangePassword", new object[] { oldPassword, newPassword });
                    // userEntry.Invoke("SetPassword", new object[] { oldPassword });
                    userEntry.CommitChanges();
                    userEntry.Close();
                }
                catch (Exception e)
                {
                    Exception baseException = e.GetBaseException();
                    if (baseException is COMException)
                    {
                        COMException comException = baseException as COMException;
                        switch (comException.ErrorCode)
                        {
                            case -2147024810:
                                throw new Exception("The current password does not match our records. Please try again.");
                            case -2147022651:
                                throw new Exception("indicating password does not meet security requirements of the domain.");
                            case -2147023570:
                                throw new Exception("invalidate user or password.");
                            case -2147016657:
                                throw new Exception("invalidate user or password. Please try again. ");
                            default:
                                throw e;
                        }
                    }
                }
            }
            else
            {
                throw new Exception("UserID = '" + userID + "' not found");
            }
        }

        public static DirectoryEntry GetUserEntry(string userID)
        {
            DirectoryEntry entry = Environment.GetDirectoryEntry();
            string filter = "(&(objectClass=user)(Pager=" + userID + "))";
            DirectorySearcher search = new DirectorySearcher(entry, filter);
            search.SearchScope = SearchScope.Subtree;
            SearchResult result = search.FindOne();

            if (result != null)
            {
                DirectoryEntry userEntry = new DirectoryEntry(result.Path, Environment.AD_AdminAccountName, Environment.AD_AdminPassword, AuthenticationTypes.Secure);
                return userEntry;
            }
            else
            {
                return null;
            }
        }
    }
}

   
    
  

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