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Categories / C# / Security

 

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;             }         }     } }