为什么DirectoryEntry(“WinNT://”)不会显示所有人?

时间:2011-02-18 13:42:51

标签: c# .net vb.net permissions directoryservices

以下功能(应该)列出本地计算机上的所有组 现在的问题是:为什么“所有人”组都没有出现? 如果我以用户身份更改目录权限,我会看到“所有人”组,因此它必须在某处。

    Public Shared Function GetAllGroups() As DataTable
        Return GetAllGroups(System.Environment.MachineName)
    End Function


    ' Tools.Permissions.Local.GetAllGroups() '
    Public Shared Function GetAllGroups(ByVal strDomain As String) As DataTable
        Dim dt As New DataTable
        Dim dr As DataRow = Nothing

        Try
            Dim bException As Boolean = False
            Dim deLocalMachine As System.DirectoryServices.DirectoryEntry = New System.DirectoryServices.DirectoryEntry("WinNT://" + strDomain)
            'Dim deRootObject As System.DirectoryServices.DirectoryEntry = GetDirectoryEntry(strPath, strUserName, strPassword, bException) '
            If bException Then
                Return Nothing
            End If


            For Each child As System.DirectoryServices.DirectoryEntry In deLocalMachine.Children
                Try

                    If StringComparer.OrdinalIgnoreCase.Equals(child.SchemaClassName, "group") Then

                        If Not dt.Columns.Contains("Members") Then
                            dt.Columns.Add("Members", GetType(System.String))
                        End If

                        For Each strPropertyName As String In child.Properties.PropertyNames
                            If Not dt.Columns.Contains(strPropertyName) Then
                                dt.Columns.Add(strPropertyName, GetType(System.String))
                            End If
                        Next strPropertyName

                        dr = dt.NewRow

                        Dim strMembers As String = ""
                        For Each member As Object In DirectCast(child.Invoke("Members"), IEnumerable)
                            Using memberEntry As New System.DirectoryServices.DirectoryEntry(member)

                                Try
                                    strMembers += memberEntry.Properties("Name").Value.ToString() + Environment.NewLine
                                    Console.WriteLine(memberEntry.Path)
                                Catch exFixMeIsNotNullNotWorking As Exception

                                End Try

                            End Using
                        Next

                        dr("Members") = strMembers

                        For Each strPropertyName As String In child.Properties.PropertyNames

                            If StringComparer.OrdinalIgnoreCase.Equals(strPropertyName, "objectSid") Then
                                Dim strSID As String = ""
                                Try
                                    Dim sidThisSid As New System.Security.Principal.SecurityIdentifier(child.Properties(strPropertyName).Value, 0)
                                    strSID = sidThisSid.ToString()
                                    ' http://stackoverflow.com/questions/1040623/convert-a-username-to-a-sid-string-in-c-net '
                                    '  NTAccount ntAccount = (NTAccount)sid.Translate( typeof( NTAccount ) ); '
                                    ' Dim ntAccount As Security.Principal.NTAccount = CType(sidThisSid.Translate(GetType(Security.Principal.NTAccount)), Security.Principal.NTAccount) '
                                Catch ex As Exception

                                End Try

                                dr(strPropertyName) = strSID
                            Else
                                dr(strPropertyName) = child.Properties(strPropertyName).Value.ToString()
                            End If



                        Next strPropertyName
                        dt.Rows.Add(dr)

                    End If

                Catch ex As Exception ' Don't finish just because one fails
                    Console.WriteLine(ex.Message.ToString & vbLf & vbLf & ex.StackTrace.ToString, MsgBoxStyle.Critical, "FEHLER ...")
                End Try
            Next
        Catch ex As Exception
            Console.WriteLine(ex.Message.ToString & vbLf & vbLf & ex.StackTrace.ToString, MsgBoxStyle.Critical, "FEHLER ...")
        End Try

        Return dt
    End Function ' ListEverything

1 个答案:

答案 0 :(得分:2)

Everyone组不是标准组,而是隐式组或内置主体。如果您打开本地“用户和组”,则不会在其中列出它。其他“群体”也是如此,例如Authenticated Users。如果要访问这些,则需要使用System.Security.Principal.WellKnownSidType枚举。此Windows 2008 article也与旧版Windows相关。