Example: Password Extension

This topic contains code examples for a password extension. The examples assume that the connected data source uses an XML file to set passwords.

Note  For clarity, the passwords are exposed in the example. We recommend that you modify the examples so that the passwords are encrypted and not exposed.

The examples have the following members:

  • A constructor that initializes global variables.
  • A BeginConnectionToServer function that initializes an XmlTextWriter object and writes the root element. This function assumes that the XML file Sample_password.xml exists in the MaData folder.
  • An EndConnectionToServer function that writes the last element and then closes the XmlTextWriter object.
  • A GetConnectionSecurityLevel function that returns the connection security level. In this example, the connection is not secure.
  • A SetPassword function that writes the new password of the CSEntry object.
  • A ChangePassword function that writes the old and new passwords of the CSEntry object.
  • A RequireChangePasswordOnNextLogin function that throws an EntryPointNotImplementedException exception. Although this function is not used in Microsoft Identity Integration Server 2003 Service Pack 1 (SP1), the server still requires an implementation.
  • A module function in the Visual Basic .NET example or a structure function in the C# example whose members are used to manage the XML node names. These names are used when generating the XML file.

The following Visual Basic .NET example shows an implementation of a password extension.

Imports System

Imports System.IO

Imports System.Xml

Imports System.Text

Imports System.Collections.Specialized

Imports Microsoft.MetadirectoryServices

Namespace SamplePasswordManagement
    '
    ' This sample writes to an XML file when the SetPassword and ChangePassword methods are invoked
    ' on the interface.
    ' 

    Public Class SampleMAPasswordManagement
                Implements IMAPasswordManagement

        '
        ' Constructor
        '
        Public Sub New()

            m_xmlWriterExport = Nothing

            m_encoding = UnicodeEncoding.Unicode

        End Sub

        Public Sub BeginConnectionToServer(ByVal connectTo As String, _
                                       ByVal user As String, _
                                       ByVal password As String) _
                    Implements IMAPasswordManagement.BeginConnectionToServer

            ' 
            ' NOTE: The connectTo, user, and password  attributes are not
            ' used in the sample. You would use these attributes if
            ' you were to connect to a data source that requires them.
            ' 
            m_xmlWriterExport = New XmlTextWriter(MAUtils.MAFolder & "\sample_password.xml", m_encoding)

            m_xmlWriterExport.WriteStartElement(Nodes.Root)

        End Sub

        Public Sub EndConnectionToServer() _
                    Implements IMAPasswordManagement.EndConnectionToServer

            If Nothing <> m_xmlWriterExport Then

                m_xmlWriterExport.WriteEndElement()

                m_xmlWriterExport.Close()

            End If

        End Sub

        Public Function GetConnectionSecurityLevel() As ConnectionSecurityLevel _
                        Implements IMAPasswordManagement.GetConnectionSecurityLevel

            Return ConnectionSecurityLevel.NotSecure

        End Function


        Public Sub SetPassword(ByVal csentry As CSEntry, ByVal NewPassword As String) _
                        Implements IMAPasswordManagement.SetPassword

            m_xmlWriterExport.WriteStartElement(Nodes.Object)

            m_xmlWriterExport.WriteElementString(Nodes.Name, csentry.DN.ToString())

            m_xmlWriterExport.WriteElementString(Nodes.Operation, "SetPassword")

            m_xmlWriterExport.WriteElementString(Nodes.NewPassword, NewPassword)

            m_xmlWriterExport.WriteEndElement()

        End Sub

        Public Sub ChangePassword(ByVal csentry As CSEntry, _
                                  ByVal OldPassword As String, _
                                  ByVal NewPassword As String) _
                    Implements IMAPasswordManagement.ChangePassword

            m_xmlWriterExport.WriteStartElement(Nodes.Object)

            m_xmlWriterExport.WriteElementString(Nodes.Name, csentry.DN.ToString())

            m_xmlWriterExport.WriteElementString(Nodes.Operation, "ChangePassword")

            m_xmlWriterExport.WriteElementString(Nodes.OldPassword, OldPassword)

            m_xmlWriterExport.WriteElementString(Nodes.NewPassword, NewPassword)

            m_xmlWriterExport.WriteEndElement()

        End Sub


        Public Sub RequireChangePasswordOnNextLogin(ByVal csentry As CSEntry, _
                                                    ByVal fRequireChangePasswordOnNextLogin As Boolean) _
                    Implements IMAPasswordManagement.RequireChangePasswordOnNextLogin

            Throw New EntryPointNotImplementedException

        End Sub

        '
        ' Members
        '
        Private m_xmlWriterExport As XmlTextWriter

        Private m_encoding As Encoding

    End Class

    Module Nodes

        Public Const Root As String = "sample-passwords"

        Public Const [Object] As String = "object"

        Public Const Name As String = "name"

        Public Const Operation As String = "operation"

        Public Const OldPassword As String = "old-password"

        Public Const NewPassword As String = "new-password"

        Public Const ObjectClass As String = "objectclass"

    End Module

End Namespace 'SamplePasswordManagement

The following C# example shows an implementation of a password extension.

using System;

using System.IO;

using System.Xml;

using System.Text;

using System.Collections.Specialized;

using Microsoft.MetadirectoryServices;

namespace SamplePasswordManagement
{
    //
    // This sample writes to a XML file when the SetPassword and ChangePasssword methods are invoked
    // on the interface.
    // 
    public class SampleMAPasswordManagement : IMAPasswordManagement
    
    {
        //
        // Constructor
        //
        public SampleMAPasswordManagement()
        
        {
        
            m_xmlWriterExport   = null;
        
            m_encoding          = UnicodeEncoding.Unicode;
        
        }

        
        
        public void BeginConnectionToServer(
                                             string connectTo,
                                             
                                             string user,
                                             
                                             string password
            
                                           )
                                           
        {
            // 
            // NOTE: The connectTo, user, and password attributes are not
            // used in the sample. You would use these attributes if
            // you were to connect to a data source that requires them.
            // 
           
            m_xmlWriterExport = new XmlTextWriter(
            
                                                    MAUtils.MAFolder +
                                                    
                                                    @"\sample_password.xml", 
                                                    
                                                    m_encoding
                                                    
                                                 );

            m_xmlWriterExport.WriteStartElement(Nodes.Root);
            
        }

        public void EndConnectionToServer()
        
        {
        
            if (null != m_xmlWriterExport) 
        
            {
        
                m_xmlWriterExport.WriteEndElement();
    
                m_xmlWriterExport.Close();
        
            }
        
        }
        
        public ConnectionSecurityLevel GetConnectionSecurityLevel()
        
        {
        
            return ConnectionSecurityLevel.NotSecure;
        
        }
        
        public void SetPassword(
                                 CSEntry csentry, 
                                
                                 string  NewPassword
            
                               )
        
        {
            
            m_xmlWriterExport.WriteStartElement(Nodes.Object);

            m_xmlWriterExport.WriteElementString(
                                                  Nodes.Name,
                                                   
                                                  csentry.DN.ToString()
                                                
                                                );

            m_xmlWriterExport.WriteElementString(
                                                  Nodes.Operation, 
                                                  
                                                  "SetPassword"
                                                    
                                                );
            
            m_xmlWriterExport.WriteElementString(
                                                  Nodes.NewPassword, 
                                                  
                                                  NewPassword
                                                
                                                );

            m_xmlWriterExport.WriteEndElement();
            
        }
 
        
        public void ChangePassword(
                                    CSEntry csentry,
                                     
                                    string  OldPassword,
                                    
                                    string  NewPassword
                                    
                                  )
        {
            
            
            m_xmlWriterExport.WriteStartElement(Nodes.Object);

            m_xmlWriterExport.WriteElementString(
                                                 Nodes.Name, 
                                                 
                                                 csentry.DN.ToString()
                
                                                );

            m_xmlWriterExport.WriteElementString(
                                                 Nodes.Operation, 
                
                                                 "ChangePassword"
                                                 
                                                );

            m_xmlWriterExport.WriteElementString(
                                                 Nodes.OldPassword, 
                
                                                 OldPassword
                
                                                );

            m_xmlWriterExport.WriteElementString(
                                                 Nodes.NewPassword, 
                                                 
                                                 NewPassword
                                                 
                                                );

            m_xmlWriterExport.WriteEndElement();
            
        }
      
        public void RequireChangePasswordOnNextLogin(
                                                      CSEntry csentry, 
                                                    
                                                      bool    fRequireChangePasswordOnNextLogin
                                                    
                                                    )
        {
            
            throw new EntryPointNotImplementedException();
            
        }

        //
        // Members
        //
        XmlTextWriter       m_xmlWriterExport;
        
        Encoding            m_encoding;
    }

    struct Nodes
    {
        
        public const string Root        = "sample-passwords";
        
        public const string Object      = "object";
        
        public const string Name        = "name";
        
        public const string Operation   = "operation";
        
        public const string OldPassword = "old-password";
        
        public const string NewPassword = "new-password";
        
        public const string ObjectClass = "objectclass";
        
    }
}

See Also

IMAPasswordManagement
EntryPointNotImplementedException
IMAPasswordManagement.BeginConnectionToServer(String, String, String)
IMAPasswordManagement.ChangePassword(CSEntry, String, String)
IMAPasswordManagement.EndConnectionToServer()
IMAPasswordManagement.GetConnectionSecurityLevel()
IMAPasswordManagement.RequireChangePasswordOnNextLogin(CSEntry, Boolean)
IMAPasswordManagement.SetPassword(CSEntry, String)
XmlTextWriter

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Build date: 2/16/2009