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  • AD活动目录操作类(VB.net)

在园子里找到就翻成VB.net的了。
原文见：
http://www.cnblogs.com/rickie/category/29428.html
对这个类的使用，我会在下篇post中补上
开始要添加对System.DirectoryServices，System.DirectoryServices.Protocols 这两个DLL的引用。
在公共程序集里面都可以找到。
Imports System.DirectoryServices
Imports System.Data
Imports System
Imports Microsoft.VisualBasic

Public Class ADHelper

    Public Shared ADPath As String = System.Configuration.ConfigurationManager.AppSettings.Get("ADPath")
    Public Shared UserName As String
    Public Shared PassWord As String
    Public Enum ADAccountOptions
        UF_TEMP_DUPLICATE_ACCOUNT = &H100
        UF_NORMAL_ACCOUNT = &H200
        UF_INTERDOMAIN_TRUST_ACCOUNT = &H800
        UF_WORKSTATION_TRUST_ACCOUNT = &H1000
        UF_SERVER_TRUST_ACCOUNT = &H2000
        UF_DONT_EXPIRE_PASSWD = &H10000
        UF_SCRIPT = &H1
        UF_ACCOUNTDISABLE = &H2
        UF_HOMEDIR_REQUIRED = &H8
        UF_LOCKOUT = &H10
        UF_PASSWD_NOTREQD = &H20
        UF_PASSWD_CANT_CHANGE = &H40
        UF_ACCOUNT_LOCKOUT = &H10
        UF_ENCRYPTED_TEXT_PASSWORD_ALLOWED = &H80
    End Enum

    Public Enum LoginResult

        LOGIN_OK = 0
        LOGIN_USER_DOESNT_EXIST
        LOGIN_USER_ACCOUNT_INACTIVE
    End Enum

    Public Shared Function IsUserValid(ByVal UserName As String, ByVal PassWord As String) As Boolean
        Dim deUser As DirectoryEntry

        deUser = New DirectoryEntry(ADPath, UserName, PassWord, AuthenticationTypes.Secure)
        Try
            Dim native As Object = deUser.NativeObject
            Return True
        Catch ex As Exception
            Return False
        Finally
            deUser.Close()
        End Try
    End Function


    Public Shared Function IsAccountActive(ByVal userAccountControl As Integer) As Boolean

        Dim userAccountControl_Disabled As Integer = Convert.ToInt32(ADAccountOptions.UF_ACCOUNTDISABLE)
        Dim flagExists As Integer = userAccountControl And userAccountControl_Disabled
        If (flagExists > 0) Then
            Return False
        Else
            Return True
        End If

    End Function

    Public Shared Function Login(ByVal UserName As String, ByVal PassWord As String) As LoginResult
        If (IsUserValid(UserName, PassWord)) Then
            Dim de As DirectoryEntry = GetUser(UserName)
            If (de IsNot DBNull.Value) Then
                Dim userAccountControl As Integer = Convert.ToInt32(de.Properties("userAccountControl")(0))
                de.Close()
                If (Not IsAccountActive(userAccountControl)) Then
                    Return LoginResult.LOGIN_USER_ACCOUNT_INACTIVE
                Else
                    Return LoginResult.LOGIN_OK
                End If
            Else
                Return LoginResult.LOGIN_USER_DOESNT_EXIST

            End If
        Else
            Return LoginResult.LOGIN_USER_DOESNT_EXIST
        End If
    End Function

    Public Shared Function GetUser(ByVal UserName As String) As DirectoryEntry
        Dim de As DirectoryEntry = GetDirectoryObject()
        Dim deSearch As New DirectorySearcher
        deSearch.SearchRoot = de
        deSearch.Filter = "(&(objectClass=user)(objectCategory=person)(sAMAccountName=" + UserName + "))"
        deSearch.SearchScope = SearchScope.Subtree
        Dim results As SearchResult = deSearch.FindOne
        If (results IsNot DBNull.Value) Then
            de = New DirectoryEntry(results.Path, UserName, PassWord, AuthenticationTypes.Secure)
            Return de
        Else
            Return Nothing
        End If
    End Function

    Public Shared Function GetDirectoryObject() As DirectoryEntry
        Dim oDe As DirectoryEntry
        oDe = New DirectoryEntry(ADPath, UserName, PassWord, AuthenticationTypes.Secure)
        Return oDe
    End Function

    Public Shared Function GetProperty(ByVal searchResult As SearchResult, ByVal PropertyName As String) As String
        If (searchResult.Properties.Contains(PropertyName)) Then
            Return searchResult.Properties(PropertyName)(0).ToString
        Else
            Return String.Empty
        End If
    End Function
    Public Shared Function test(ByVal UserName As String) As SearchResult
        Dim de As DirectoryEntry = GetDirectoryObject()
        Dim deSearch As New DirectorySearcher
        deSearch.SearchRoot = de
        deSearch.Filter = "(&(objectClass=user)(objectCategory=person)(sAMAccountName=" + UserName + "))"
        deSearch.SearchScope = SearchScope.Subtree
        Dim results As SearchResult = deSearch.FindOne
        If (results IsNot DBNull.Value) Then
            Return results
        Else
            Return Nothing
        End If
    End Function
    Public Shared Function nopassword(ByVal UserName As String) As SearchResult
        Dim de As DirectoryEntry = New DirectoryEntry(ADPath)
        Dim deSearch As New DirectorySearcher
        deSearch.SearchRoot = de
        deSearch.Filter = "(&(objectClass=user)(objectCategory=person)(sAMAccountName=" + UserName + "))"
        deSearch.SearchScope = SearchScope.Subtree
        Dim results As SearchResult = deSearch.FindOne
        If (results IsNot DBNull.Value) Then
            Return results
        Else
            Return Nothing
        End If
    End Function
End Class

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