Imports System.Runtime.InteropServices
Imports System.ComponentModel
Imports System.Security.Principal
Public Class NetApi
Const READ_CONTROL As Integer = &H20000
Const TOKEN_QUERY As Integer = &H8
Const NERR_TRUE As Integer = 1
Const RPC_S_SERVER_UNAVAILABLE As Integer = 1722
Const ERROR_INVALID_LEVEL As Integer = 124
Const ERROR_ACCESS_DENIED As Integer = 5
Const ERROR_MORE_DATA As Integer = 234
Const ERROR_INVALID_PASSWORD As Integer = 86
Const NERR_Success As Integer = 0
Const NERR_BASE As Integer = 2100
Const NERR_UserNotFound As Integer = NERR_BASE + 121
Const NERR_GroupExists As Integer = NERR_BASE + 123
Const NERR_UserExists As Integer = NERR_BASE + 124
Const NERR_NotPrimary As Integer = NERR_BASE + 126
Const NERR_PasswordTooShort As Integer = NERR_BASE + 145
Const NERR_InvalidComputer As Integer = NERR_BASE + 251
Const NERR_InvalidMember As Integer = 1388
Const ERROR_NO_SUCH_GROUP As Integer = 1319
Const ERROR_NO_SUCH_MEMBER As Integer = 1387
Const ERROR_MEMBER_IN_ALIAS As Integer = 1378
Const ERROR_INVALID_SID As Integer = 1337
Const NERR_BadUsername As Integer = 2202
Const ERR_ACCOUNT_CHANGED As Integer = &H0
Const ERR_ACCOUNT_ALREADY_DISABLED As Integer = -&H10
Const ERR_ACCOUNT_ALREADY_ENABLED As Integer = -&H20
Const ERR_ACCOUNT_NOT_FOUND As Integer = -&H40
Const ERR_UPDATE_NOT_SUCCESSFUL As Integer = -&H80
Const MAX_PREFERRED_LENGTH As Integer = -1
Const USER_MAXSTORAGE_UNLIMITED As Integer = -1
Private Const TIMEQ_FOREVER As Integer = -1
Private Const DOMAIN_GROUP_RID_USERS As Integer = &H201
Private Const USER_INFO_LEVEL_0 As Integer = 0
Private Const USER_INFO_LEVEL_1 As Integer = 1
Private Const USER_INFO_LEVEL_2 As Integer = 2
Private Const USER_INFO_LEVEL_3 As Integer = 3
Private Const USER_PRIV_GUEST As Integer = 0
Private Const USER_PRIV_USER As Integer = 1
Private Const USER_PRIV_ADMIN As Integer = 2
Public Const UF_SCRIPT As Integer = &H1
Public Const UF_ACCOUNTDISABLE As Integer = &H2
Public Const UF_HOMEDIR_REQUIRED As Integer = &H8
Public Const UF_LOCKOUT As Integer = &H10
Public Const UF_PASSWD_NOTREQD As Integer = &H20
Public Const UF_PASSWD_CANT_CHANGE As Integer = &H40
Public Const UF_DONT_EXPIRE_PASSWD As Integer = &H10000
Public Const UF_NORMAL_ACCOUNT As Integer = &H200
Public Const UF_SERVER_TRUST_ACCOUNT As Integer = &H2000
Public Const UF_TEMP_DUPLICATE_ACCOUNT As Integer = &H100
Public Const UF_INTERDOMAIN_TRUST_ACCOUNT As Integer = &H800
Public Const UF_WORKSTATION_TRUST_ACCOUNT As Integer = &H1000
Public Const UF_ENCRYPTED_TEXT_PASSWORD_ALLOWED As Integer = &H80
Public Const UF_MNS_LOGON_ACCOUNT As Integer = &H20000
Public Const UF_SMARTCARD_REQUIRED As Integer = &H40000
Public Const UF_TRUSTED_FOR_DELEGATION As Integer = &H80000
Public Const UF_NOT_DELEGATED As Integer = &H100000
Public Const UF_USE_DES_KEY_ONLY As Integer = &H200000
Public Const UF_DONT_REQUIRE_PREAUTH As Integer = &H400000
Private Const STILL_ACTIVE As Integer = &H103
Private Const PROCESS_QUERY_INFORMATION As Integer = &H400
Public Structure User
Public Name As String
Public Comment As String
Public FullName As String
Public Flags As Integer
Public Id As Integer
End Structure
<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)> _
Private Structure LOCALGROUP_MEMBERS_INFO_3
<MarshalAs(UnmanagedType.LPWStr)> Public FullName As String
End Structure
<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)> _
Public Structure USER_INFO_0
Public Username As String
End Structure
<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)> _
Public Structure USER_INFO_1
Public Username As String
Public Password As String
Public Password_Age As Integer
Public Priv As Integer
Public Home_Dir As String
Public Comment As String
Public Flags As Integer
Public Script_Path As String
End Structure
<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)> _
Public Structure USER_INFO_2
<MarshalAs(UnmanagedType.LPWStr)> Public username As String
<MarshalAs(UnmanagedType.LPWStr)> Public password As String
Public password_age As Integer
Public priv As Integer
<MarshalAs(UnmanagedType.LPWStr)> Public home_dir As String
<MarshalAs(UnmanagedType.LPWStr)> Public comment As String
Public flags As Integer
<MarshalAs(UnmanagedType.LPWStr)> Public script_path As String
Public auth_flags As Integer
<MarshalAs(UnmanagedType.LPWStr)> Public full_name As String
<MarshalAs(UnmanagedType.LPWStr)> Public usr_comment As String
<MarshalAs(UnmanagedType.LPWStr)> Public parms As String
<MarshalAs(UnmanagedType.LPWStr)> Public workstations As String
Public last_logon As Integer
Public last_logoff As Integer
Public acct_expires As Integer
Public max_storage As Integer
Public units_per_week As Integer
Public logon_hours As IntPtr
Public bad_pw_count As Integer
Public num_logons As Integer
<MarshalAs(UnmanagedType.LPWStr)> Public logon_server As String
Public country_code As Integer
Public code_page As Integer
End Structure
<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)> _
Public Structure USER_INFO_3
<MarshalAs(UnmanagedType.LPWStr)> Public username As String
<MarshalAs(UnmanagedType.LPWStr)> Public password As String
Public password_age As Integer
Public priv As Integer
<MarshalAs(UnmanagedType.LPWStr)> Public home_dir As String
<MarshalAs(UnmanagedType.LPWStr)> Public comment As String
Public flags As Integer
<MarshalAs(UnmanagedType.LPWStr)> Public script_path As String
Public auth_flags As Integer
<MarshalAs(UnmanagedType.LPWStr)> Public full_name As String
<MarshalAs(UnmanagedType.LPWStr)> Public usr_comment As String
<MarshalAs(UnmanagedType.LPWStr)> Public parms As String
<MarshalAs(UnmanagedType.LPWStr)> Public workstations As String
Public last_logon As Integer
Public last_logoff As Integer
Public acct_expires As Integer
Public max_storage As Integer
Public units_per_week As Integer
Public logon_hours As IntPtr
Public bad_pw_count As Integer
Public num_logons As Integer
<MarshalAs(UnmanagedType.LPWStr)> Public logon_server As String
Public country_code As Integer
Public code_page As Integer
Public user_id As Integer
Public primary_group_id As Integer
<MarshalAs(UnmanagedType.LPWStr)> Public profile As String
<MarshalAs(UnmanagedType.LPWStr)> Public home_dir_drive As String
Public password_expired As Integer
End Structure
<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)> _
Private Structure USER_INFO_1008
Public flags As Integer
End Structure
<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)> _
Private Structure NET_DISPLAY_USER
Public name As IntPtr
Public comment As IntPtr
Public flags As UInteger
Public full_name As IntPtr
Public user_id As UInteger
Public next_index As UInteger
End Structure
<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)> _
Private Structure NET_DISPLAY_GROUP
Public grp_name As IntPtr
Public grp_comment As IntPtr
Public grp_group_id As Integer
Public grp_attributes As Integer
Public grp_next_index As Integer
End Structure
<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)> _
Private Structure NET_DISPLAY_MACHINE
Public name As IntPtr
Public comment As IntPtr
Public flags As Integer
Public user_id As Integer
Public next_index As Integer
End Structure
<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)> _
Private Structure LOCALGROUP_USERS_INFO_0
<MarshalAs(UnmanagedType.LPWStr)> Public name As String
End Structure
<DllImport("netapi32.dll", CharSet:=CharSet.Unicode)> _
Private Shared Function NetUserChangePassword( _
<MarshalAs(UnmanagedType.LPWStr)> ByVal Domain As String, _
<MarshalAs(UnmanagedType.LPWStr)> ByVal Username As String, _
<MarshalAs(UnmanagedType.LPWStr)> ByVal OldPassword As String, _
<MarshalAs(UnmanagedType.LPWStr)> ByVal NewPassword As String) As Integer
End Function
<DllImport("netapi32.dll", CharSet:=CharSet.Unicode, SetLastError:=True)> _
Private Shared Function NetUserSetInfo( _
ByVal servername As String, _
ByVal username As String, _
ByVal level As Integer, _
ByRef buf As String, _
ByRef parm_err As Integer) As Integer
End Function
<DllImport("netapi32.dll", CharSet:=CharSet.Unicode, SetLastError:=True)> _
Private Shared Function NetUserSetInfo( _
ByVal servername As String, _
ByVal username As String, _
ByVal level As Integer, _
ByVal ptr As IntPtr, _
ByRef parm_err As Integer) As Integer
End Function
<DllImport("netapi32.dll", CharSet:=CharSet.Unicode, SetLastError:=True)> _
Private Shared Function NetUserSetInfo( _
ByVal servername As String, _
ByVal username As String, _
ByVal level As Integer, _
ByRef info As USER_INFO_0, _
ByRef parm_err As Integer) As Integer
End Function
<DllImport("netapi32.dll", CharSet:=CharSet.Unicode, SetLastError:=True)> _
Private Shared Function NetUserSetInfo( _
ByVal servername As String, _
ByVal username As String, _
ByVal level As Integer, _
ByRef info As USER_INFO_1, _
ByRef parm_err As Integer) As Integer
End Function
<DllImport("netapi32.dll", CharSet:=CharSet.Unicode, SetLastError:=True)> _
Private Shared Function NetUserSetInfo( _
ByVal servername As String, _
ByVal username As String, _
ByVal level As Integer, _
ByRef info As USER_INFO_2, _
ByRef parm_err As Integer) As Integer
End Function
<DllImport("netapi32.dll", CharSet:=CharSet.Unicode, SetLastError:=True)> _
Private Shared Function NetUserGetInfo( _
ByVal servername As String, _
ByVal username As String, _
ByVal level As Integer, _
ByRef bufptr As IntPtr) As Integer
End Function
<DllImport("netapi32.dll", CharSet:=CharSet.Unicode, SetLastError:=True)> _
Private Shared Function NetUserGetLocalGroups( _
<MarshalAs(UnmanagedType.LPWStr)> ByVal servername As String, _
<MarshalAs(UnmanagedType.LPWStr)> ByVal username As String, _
ByVal level As Integer, _
ByVal flags As Integer, _
ByRef bufptr As IntPtr, _
ByVal prefmaxlen As Integer, _
ByRef entriesread As Integer, _
ByRef totalentries As Integer) As Integer
End Function
<DllImport("netapi32.dll", CharSet:=CharSet.Unicode, SetLastError:=True)> _
Private Shared Function NetUserAdd( _
<MarshalAs(UnmanagedType.LPWStr)> ByVal ServerName As String, _
ByVal Level As Integer, _
ByRef Buffer As USER_INFO_2, _
ByVal parm_err As Integer) As Integer
End Function
<DllImport("netapi32.dll", CharSet:=CharSet.Unicode, SetLastError:=True)> _
Private Shared Function NetUserAdd( _
<MarshalAs(UnmanagedType.LPWStr)> ByVal ServerName As String, _
ByVal Level As Integer, _
ByRef Buffer As USER_INFO_1, _
ByVal parm_err As Integer) As Integer
End Function
<DllImport("netapi32.dll", CharSet:=CharSet.Unicode, SetLastError:=True)> _
Private Shared Function NetApiBufferAllocate( _
ByVal ByteCount As Integer, _
ByVal Ptr As IntPtr) As Integer
End Function
<DllImport("netapi32.dll", CharSet:=CharSet.Unicode, SetLastError:=True)> _
Private Shared Function NetApiBufferFree(ByVal bufptr As IntPtr) As Integer
End Function
<DllImport("netapi32.dll", CharSet:=CharSet.Unicode, SetLastError:=True)> _
Private Shared Function NetQueryDisplayInformation( _
<MarshalAs(UnmanagedType.LPWStr)> ByVal ServerName As String, _
ByVal Level As Integer, _
ByVal Index As Integer, _
ByVal EntriesRequested As Integer, _
ByVal PreferredMaximumLength As Integer, _
ByRef ReturnedEntryCount As Integer, _
ByRef SortedBuffer As IntPtr) As Integer
End Function
<DllImport("netapi32.dll", CharSet:=CharSet.Unicode, SetLastError:=True)> _
Private Shared Function NetUserEnum( _
<MarshalAs(UnmanagedType.LPWStr)> ByVal servername As String, _
ByVal level As Integer, _
ByVal filter As Integer, _
ByRef bufptr As IntPtr, _
ByVal prefmaxlen As Integer, _
ByRef entriesread As Integer, _
ByRef totalentries As Integer, _
ByRef resume_handle As Integer) As Integer
End Function
<DllImport("netapi32.dll", CharSet:=CharSet.Unicode, SetLastError:=True)> _
Private Shared Function NetUserDel( _
ByVal ServerName As String, _
ByVal UserName As String) As Integer
End Function
<DllImport("userenv.dll", SetLastError:=True, CharSet:=CharSet.Unicode)> _
Private Shared Function DeleteProfile( _
ByVal lpSidString As String, _
ByVal lpProfilePath As String, _
ByVal lpComputerName As String) As Integer
End Function
<DllImport("netapi32.dll", CharSet:=CharSet.Unicode, SetLastError:=True)> _
Private Shared Function NetLocalGroupAddMembers( _
ByVal ServerName As String, _
ByVal GroupName As String, _
ByVal Level As UInteger, _
ByRef Buffer As LOCALGROUP_MEMBERS_INFO_3, _
ByVal TotalEntries As UInteger) As Integer
End Function
Public Shared Sub DeleteUser(ByVal fullname As String, ByVal deleteProfile As Boolean)
Utilities.ParseUsername(fullname, Nothing, fullname)
Dim result As Integer
Dim sid As SecurityIdentifier = Utilities.GetSidForUser(fullname)
If deleteProfile Then
Dim profilePath As String = Utilities.ReadProfilePath(sid)
If Not String.IsNullOrEmpty(profilePath) Then
Dim retries As Integer = 0
Try
Retry:
result = NetApi.DeleteProfile(sid.Value, Nothing, Nothing)
If result = 0 Then
Throw New Win32Exception(Marshal.GetLastWin32Error())
End If
Catch ex As Exception
retries += 1
If retries < 3 Then
GoTo retry
End If
Try
If System.IO.Directory.Exists(profilePath) Then
System.IO.Directory.Delete(profilePath, True)
End If
Catch ex2 As Exception
Logger.WriteEntry("Unable to delete profile: " + ex2.Message, EventLogEntryType.Error)
End Try
End Try
End If
End If
result = NetUserDel(Nothing, fullname)
If result <> NERR_Success Then
Throw New Win32Exception(result)
End If
End Sub
Public Shared Function GetUsers() As List(Of User)
Dim _users As New List(Of User)
Dim buf As IntPtr = IntPtr.Zero
Dim nextIndex As Integer
Dim entriesRead As Integer
Dim usr As NET_DISPLAY_USER
Dim result As Integer = ERROR_MORE_DATA
Do While result = ERROR_MORE_DATA
Try
result = NetQueryDisplayInformation(Nothing, 1, nextIndex, 100, MAX_PREFERRED_LENGTH, entriesRead, buf)
If result = ERROR_ACCESS_DENIED OrElse result = ERROR_INVALID_LEVEL Then
Throw New Win32Exception(Marshal.GetLastWin32Error())
End If
Dim users(entriesRead) As NET_DISPLAY_USER
Dim iter As IntPtr = buf
For i As Integer = 0 To entriesRead - 1
users(i) = CType(Marshal.PtrToStructure(iter, GetType(NET_DISPLAY_USER)), NET_DISPLAY_USER)
iter = New IntPtr(iter.ToInt32 + Marshal.SizeOf(GetType(NET_DISPLAY_USER)))
Dim u As New User
u.Name = Marshal.PtrToStringAuto(users(i).name)
u.Flags = CInt(users(i).flags)
u.Id = CInt(users(i).user_id)
'u.FullName = Marshal.PtrToStringAuto(users(i).full_name)
_users.Add(u)
nextIndex = CInt(usr.next_index)
Next i
Finally
NetApiBufferFree(buf)
End Try
Loop
Return _users
End Function
Public Shared Function UserListEnum() As ArrayList
Dim _users As New ArrayList
Dim entriesRead As Integer
Dim totalEntries As Integer
Dim resumeHandle As Integer
Dim bufPtr As IntPtr
NetUserEnum(Nothing, 0, 2, bufPtr, -1, entriesRead, totalEntries, resumeHandle)
If entriesRead = 0 Then
Throw New Win32Exception(Marshal.GetLastWin32Error())
End If
Dim users(entriesRead) As USER_INFO_0
Dim iter As IntPtr = bufPtr
For i As Integer = 0 To entriesRead - 1
users(i) = CType(Marshal.PtrToStructure(iter, GetType(USER_INFO_0)), USER_INFO_0)
iter = New IntPtr(iter.ToInt32 + Marshal.SizeOf(GetType(USER_INFO_0)))
_users.Add(users(i).Username)
Next i
NetApiBufferFree(bufPtr)
Return _users
End Function
Public Shared Function CreateUser(ByVal username As String, ByVal password As String, ByVal isAdmin As Boolean, ByVal fullname As String, ByVal comments As String) As SecurityIdentifier
Dim flags As Integer = UF_NORMAL_ACCOUNT
'Dim info As New USER_INFO_2()
Dim info As New USER_INFO_1()
Utilities.ParseUsername(username, Nothing, username)
With info
.username = username ' Name of user account
.password = password ' Password for user account
.password_age = 25637 ' Ignored by NetUserAdd
.priv = USER_PRIV_USER ' Must be USER_PRIV_USER
.home_dir = Nothing ' Can be null
.comment = comments ' Can be null or null terminated string
.flags = UF_DONT_EXPIRE_PASSWD Or UF_NORMAL_ACCOUNT Or UF_SCRIPT ' There are a number of variations
.script_path = Nothing ' Path of user's logon script. Can be null
'.auth_flags = 0 ' NetUserAdd must be 0
'.full_name = fullname ' User's full name. Can be null
'.usr_comment = Nothing ' User comment. Can be null
'.parms = Nothing ' Used by specific applications. Can be null
'.workstations = Nothing ' Workstations a user can log onto (null = all stations)
'.last_logon = 0 ' Ignored by NetUserAdd
'.last_logoff = 0 ' Not used
'.acct_expires = TIMEQ_FOREVER ' Never expires
'.max_storage = USER_MAXSTORAGE_UNLIMITED ' Can use any amount of disk space
'.units_per_week = 0 ' Ignored by NetUserAdd
'.logon_hours = IntPtr.Zero ' Null means no restrictions
'.bad_pw_count = 0 ' Ignored by NetUserAdd
'.num_logons = 0 ' Ignored by NetUserAdd
'.logon_server = Nothing ' Null means logon to domain server
'.country_code = 0 ' Country code for user's language
'.code_page = 0 ' Code page for user's language
End With
Try
Dim parmErr As Integer
Dim result As Integer
result = NetUserAdd(Nothing, USER_INFO_LEVEL_1, info, parmErr)
If result <> NERR_Success Then
Throw New Win32Exception(result)
End If
Dim groupInfo3 As LOCALGROUP_MEMBERS_INFO_3
groupInfo3.FullName = Environment.MachineName + "\" + username
Dim groupName As String
If isAdmin Then
groupName = KernelApi.AdministratorsGroupName()
Else
groupName = "Users"
End If
result = NetLocalGroupAddMembers(Nothing, groupName, 3, groupInfo3, 1)
If result <> NERR_Success Then
Throw New Win32Exception(result)
End If
Return Utilities.GetSidForUser(username)
Finally
'Marshal.FreeHGlobal(ptr)
End Try
End Function
Public Shared Function UserExists(ByVal username As String) As Boolean
Try
NetApi.GetUserInfo0(username)
Return True
Catch aex As ArgumentOutOfRangeException
'user not found
End Try
Return False
End Function
Public Shared Function GetUserLocalGroups(ByVal username As String) As List(Of String)
Dim entriesRead As Integer
Dim totalEntries As Integer
Dim bufPtr As IntPtr = IntPtr.Zero
Dim result As Integer
Try
result = NetApi.NetUserGetLocalGroups(Nothing, username, 0, 0, bufPtr, 1024, entriesRead, totalEntries)
Select Case result
Case NERR_Success
'ok
Case ERROR_ACCESS_DENIED
Throw New AccessViolationException("Unable to retrieve groups. Access denied.")
Case ERROR_MORE_DATA
'ok
Case NERR_InvalidComputer
Throw New ArgumentOutOfRangeException("Unable to retrieve groups. Invalid computer name.")
Case NERR_UserNotFound
Throw New ArgumentOutOfRangeException("username, value is: " + username)
End Select
If result <> 0 Then
Throw New Win32Exception(Marshal.GetLastWin32Error())
End If
Dim groupList As New List(Of String)
If entriesRead > 0 Then
Dim groups(entriesRead - 1) As LOCALGROUP_USERS_INFO_0
Dim iter As IntPtr = bufPtr
For i As Integer = 0 To entriesRead - 1
groups(i) = CType(Marshal.PtrToStructure(iter, GetType(LOCALGROUP_USERS_INFO_0)), LOCALGROUP_USERS_INFO_0)
iter = CType(iter.ToInt32() + Marshal.SizeOf(GetType(LOCALGROUP_USERS_INFO_0)), IntPtr)
groupList.Add(groups(i).name)
Next
End If
Return groupList
Catch argEx As ArgumentOutOfRangeException
'username isn't valid
Return New List(Of String)
Finally
If bufPtr <> IntPtr.Zero Then
NetApiBufferFree(bufPtr)
End If
End Try
End Function
Public Shared Sub ChangeUsername(ByVal existingName As String, ByVal newName As String)
Dim username As String = Nothing
Utilities.ParseUsername(existingName, Nothing, existingName)
If NetApi.UserExists(newName) Then
Throw New ArgumentException("Username already exists")
End If
Dim info As USER_INFO_0
info = GetUserInfo0(existingName)
info.Username = newName
Dim result As Integer
result = NetUserSetInfo(Nothing, existingName, USER_INFO_LEVEL_0, info, 0)
Select Case result
Case NERR_Success
'
Case ERROR_ACCESS_DENIED
Throw New AccessViolationException("Privilege not held: SE_CHANGE_NOTIFY_NAME")
Case NERR_InvalidComputer
Throw New ArgumentOutOfRangeException("Invalid computer name")
Case NERR_NotPrimary
Throw New InvalidOperationException("Not valid on primary domain")
Case NERR_UserNotFound
Throw New ArgumentOutOfRangeException("User not found")
Case NERR_BadUsername
Throw New ArgumentOutOfRangeException("Bad user name: " + newName)
Case Else
Throw New Exception("Unknown error while renaming: " + CStr(result))
End Select
End Sub
Public Shared Function GetUserInfo0(ByVal fullname As String) As USER_INFO_0
Dim username As String = Nothing
Dim domain As String = Nothing
Utilities.ParseUsername(fullname, domain, username)
Dim ptr As IntPtr
Try
Dim result As Integer
result = NetUserGetInfo(Nothing, username, USER_INFO_LEVEL_1, ptr)
Select Case result
Case NERR_Success
'
Case ERROR_ACCESS_DENIED
Throw New AccessViolationException("Privilege not held: SE_CHANGE_NOTIFY_NAME")
Case NERR_InvalidComputer
Throw New ArgumentOutOfRangeException("Invalid computer name")
Case NERR_NotPrimary
Throw New InvalidOperationException("Not primary domain")
Case NERR_UserNotFound
Throw New ArgumentOutOfRangeException("User not found")
Case NERR_PasswordTooShort
Throw New ArgumentOutOfRangeException("New password does not meet policy restrictions")
Case NERR_BadUsername
Throw New ArgumentOutOfRangeException("Bad user name: " + username)
Case Else
Throw New Exception("Unknown error retrieving GetUserInfo0: " + CStr(result))
End Select
Return CType(Marshal.PtrToStructure(ptr, GetType(USER_INFO_0)), USER_INFO_0)
Finally
NetApiBufferFree(ptr)
End Try
End Function
Public Shared Function GetUserInfo1(ByVal fullname As String) As USER_INFO_1
Dim username As String = Nothing
Dim domain As String = Nothing
Utilities.ParseUsername(fullname, domain, username)
Dim ptr As IntPtr
Try
Dim result As Integer
result = NetUserGetInfo(Nothing, username, USER_INFO_LEVEL_1, ptr)
Select Case result
Case NERR_Success
'
Case ERROR_ACCESS_DENIED
Throw New AccessViolationException("Privilege not held: SE_CHANGE_NOTIFY_NAME")
Case NERR_InvalidComputer
Throw New ArgumentOutOfRangeException("Invalid computer name")
Case NERR_NotPrimary
Throw New InvalidOperationException("Not valid on primary domain")
Case NERR_UserNotFound
Throw New ArgumentOutOfRangeException("User not found")
Case NERR_PasswordTooShort
Throw New ArgumentOutOfRangeException("New password does not meet policy restrictions")
Case NERR_BadUsername
Throw New ArgumentOutOfRangeException("Bad user name: " + username)
Case Else
Throw New Exception("Unknown error retrieving GetUserInfo1: " + CStr(result))
End Select
Return CType(Marshal.PtrToStructure(ptr, GetType(USER_INFO_1)), USER_INFO_1)
Finally
NetApiBufferFree(ptr)
End Try
End Function
Public Shared Function GetUserInfo2(ByVal fullname As String) As USER_INFO_2
Dim username As String = Nothing
Dim domain As String = Nothing
Utilities.ParseUsername(fullname, domain, username)
Dim ptr As IntPtr
Try
Dim result As Integer
result = NetUserGetInfo(Nothing, username, USER_INFO_LEVEL_2, ptr)
Select Case result
Case NERR_Success
'
Case ERROR_ACCESS_DENIED
Throw New AccessViolationException("Privilege not held: SE_CHANGE_NOTIFY_NAME")
Case NERR_InvalidComputer
Throw New ArgumentOutOfRangeException("Invalid computer name")
Case NERR_NotPrimary
Throw New InvalidOperationException("Not valid on primary domain")
Case NERR_UserNotFound
Throw New ArgumentOutOfRangeException("User not found")
Case NERR_PasswordTooShort
Throw New ArgumentOutOfRangeException("New password does not meet policy restrictions")
Case NERR_BadUsername
Throw New ArgumentOutOfRangeException("Bad user name: " + username)
Case Else
Throw New Exception("Unknown error retrieving GetUserInfo2: " + CStr(result))
End Select
Return CType(Marshal.PtrToStructure(ptr, GetType(USER_INFO_2)), USER_INFO_2)
Finally
NetApiBufferFree(ptr)
End Try
End Function
Public Shared Function GetUserInfo3(ByVal fullname As String) As USER_INFO_3
Dim username As String = Nothing
Dim domain As String = Nothing
Utilities.ParseUsername(fullname, domain, username)
Dim ptr As IntPtr
Try
Dim result As Integer
result = NetUserGetInfo(Nothing, username, USER_INFO_LEVEL_3, ptr)
Select Case result
Case NERR_Success
'
Case ERROR_ACCESS_DENIED
Throw New AccessViolationException("Privilege not held: SE_CHANGE_NOTIFY_NAME")
Case NERR_InvalidComputer
Throw New ArgumentOutOfRangeException("Invalid computer name")
Case NERR_NotPrimary
Throw New InvalidOperationException("Not valid on primary domain")
Case NERR_UserNotFound
Throw New ArgumentOutOfRangeException("User not found")
Case NERR_PasswordTooShort
Throw New ArgumentOutOfRangeException("New password does not meet policy restrictions")
Case NERR_BadUsername
Throw New ArgumentOutOfRangeException("Bad user name: " + username)
Case Else
Throw New Exception("Unknown error retrieving GetUserInfo3: " + CStr(result))
End Select
Return CType(Marshal.PtrToStructure(ptr, GetType(USER_INFO_3)), USER_INFO_3)
Finally
NetApiBufferFree(ptr)
End Try
End Function
Public Shared Function IsDisabled(ByVal fullname As String) As Boolean
Dim info As USER_INFO_1
info = GetUserInfo1(fullname)
If (info.Flags And NetApi.UF_ACCOUNTDISABLE) = NetApi.UF_ACCOUNTDISABLE Then
Return True
Else
Return False
End If
End Function
Public Shared Sub EnableAccount(ByVal fullname As String)
EnableAccount(fullname, True)
End Sub
Public Shared Sub DisableAccount(ByVal fullname As String)
EnableAccount(fullname, False)
End Sub
Private Shared Sub EnableAccount(ByVal fullname As String, ByVal value As Boolean)
Dim username As String = Nothing
Dim domain As String = Nothing
Utilities.ParseUsername(fullname, domain, username)
Dim info As USER_INFO_1
info = GetUserInfo1(fullname)
If value Then
info.Flags = info.Flags And Not NetApi.UF_ACCOUNTDISABLE
Else
info.Flags = info.Flags Or NetApi.UF_ACCOUNTDISABLE
End If
Dim result As Integer
result = NetUserSetInfo(Nothing, username, USER_INFO_LEVEL_1, info, 0)
Select Case result
Case NERR_Success
'
Case ERROR_ACCESS_DENIED
Throw New AccessViolationException("Privilege not held: SE_CHANGE_NOTIFY_NAME")
Case NERR_InvalidComputer
Throw New ArgumentOutOfRangeException("Invalid computer name")
Case NERR_NotPrimary
Throw New InvalidOperationException("Not valid on primary domain")
Case NERR_UserNotFound
Throw New ArgumentOutOfRangeException("User not found")
Case NERR_BadUsername
Throw New ArgumentOutOfRangeException("Bad user name: " + username)
Case Else
Throw New Exception("Unknown error enabling account: " + CStr(result))
End Select
End Sub
Public Shared Sub SetPassword(ByVal fullname As String, ByVal password As String)
Dim username As String = Nothing
Dim domain As String = Nothing
Utilities.ParseUsername(fullname, domain, username)
Dim result As Integer
result = NetUserSetInfo(domain, username, 1003, password, 0)
Select Case result
Case NERR_Success
'
Case ERROR_ACCESS_DENIED
Throw New AccessViolationException("Privilege not held: SE_CHANGE_NOTIFY_NAME")
Case ERROR_INVALID_PASSWORD
Throw New ArgumentException("Invalid password")
Case NERR_InvalidComputer
Throw New ArgumentOutOfRangeException("Invalid computer name")
Case NERR_NotPrimary
Throw New InvalidOperationException("Not valid on primary domain")
Case NERR_UserNotFound
Throw New ArgumentOutOfRangeException("User not found")
Case NERR_PasswordTooShort
Throw New ArgumentOutOfRangeException("New password does not meet policy restrictions")
Case NERR_BadUsername
Throw New ArgumentOutOfRangeException("Bad user name: " + username)
Case Else
Throw New Exception("Unknown error setting password: " + CStr(result))
End Select
End Sub
Public Shared Sub ChangePassword(ByVal fullname As String, ByVal oldPassword As String, ByVal newPassword As String)
Dim username As String = Nothing
Dim domain As String = Nothing
Utilities.ParseUsername(fullname, domain, username)
Dim result As Integer
result = NetUserChangePassword(domain, username, oldPassword, newPassword)
Select Case result
Case NERR_Success
'
Case ERROR_ACCESS_DENIED
Throw New AccessViolationException("Privilege not held: SE_CHANGE_NOTIFY_NAME")
Case ERROR_INVALID_PASSWORD
Throw New ArgumentException("The password is incorrect")
Case NERR_InvalidComputer
Throw New ArgumentOutOfRangeException("Invalid computer name")
Case NERR_NotPrimary
Throw New InvalidOperationException("Not valid on primary domain")
Case NERR_UserNotFound
Throw New ArgumentOutOfRangeException("User not found")
Case NERR_PasswordTooShort
Throw New ArgumentOutOfRangeException("New password does not meet policy restrictions")
Case NERR_BadUsername
Throw New ArgumentOutOfRangeException("Bad user name: " + username)
Case Else
Throw New Exception("Unknown error changing password: " + CStr(result))
End Select
End Sub
End Class
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