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使用WMI修改文件文件夾的NTFS權(quán)限實(shí)現(xiàn)方法，需要的朋友可以參考下

使用WMI修改文件文件夾的NTFS權(quán)限, 代碼：

代碼如下:

strUser = "guests"

strPath = "D:\\abc.txt"

RetVal = AddPermission(strUser,strPath,"R",True)

'-------------------------------------------------------------------------

'用于給文件和文件夾添加一條權(quán)限設(shè)置.返回值: 0-成功,1-賬戶不存在,2-路徑不存在

'strUser表示用戶名或組名

'strPath表示文件夾路徑或文件路徑

'strAccess表示允許權(quán)限設(shè)置的字符串,字符串中帶有相應(yīng)字母表示允許相應(yīng)權(quán)限: R-讀,C-讀寫,F-完全控制

'blInherit表示是否繼承父目錄權(quán)限.True為繼承,False為不繼承

Function AddPermission(strUser,strPath,strAccess,blInherit)

Set objWMIService = GetObject("winmgmts:\\.\root\Cimv2")

Set fso = CreateObject("Scripting.FileSystemObject")

'得到Win32_SID并判斷用戶/組/內(nèi)置賬戶是否存在

Set colUsers = objWMIService.ExecQuery("SELECT * FROM Win32_Account WHERE Name='"&strUser&"'")

If colUsers.count<>0 Then

For Each objUser In colUsers

strSID = objUser.SID

Next

Else

AddPermission = 1

Exit Function

End If

Set objSID = objWMIService.Get("Win32_SID.SID='"&strSID&"'")

'判斷文件/文件夾是否存在

pathType = ""

If fso.fileExists(strPath) Then pathType = "FILE"

If fso.folderExists(strPath) Then pathType = "FOLDER"

If pathType = "" Then

AddPermission = 2

Exit Function

End If

'設(shè)置Trustee

Set objTrustee = objWMIService.Get("Win32_Trustee").SpawnInstance_()

objTrustee.Domain = objSID.ReferencedDomainName

objTrustee.Name = objSID.AccountName

objTrustee.SID = objSID.BinaryRepresentation

objTrustee.SidLength = objSID.SidLength

objTrustee.SIDString = objSID.Sid

'設(shè)置ACE

Set objNewACE = objWMIService.Get("Win32_ACE").SpawnInstance_()

objNewACE.Trustee = objTrustee

objNewACE.AceType = 0

If InStr(UCase(strAccess),"R") > 0 Then objNewACE.AccessMask = 1179817

If InStr(UCase(strAccess),"C") > 0 Then objNewACE.AccessMask = 1245631

If InStr(UCase(strAccess),"F") > 0 Then objNewACE.AccessMask = 2032127

If pathType = "FILE" And blInherit = True Then objNewACE.AceFlags = 16

If pathType = "FILE" And blInherit = False Then objNewACE.AceFlags = 0

If pathType = "FOLDER" And blInherit = True Then objNewACE.AceFlags = 19

If pathType = "FOLDER" And blInherit = False Then objNewACE.AceFlags = 3

'設(shè)置SD

Set objFileSecSetting = objWMIService.Get("Win32_LogicalFileSecuritySetting.Path='"&strPath&"'")

Call objFileSecSetting.GetSecurityDescriptor(objSD)

blSE_DACL_AUTO_INHERITED = True

If (objSD.ControlFlags And &H400) = 0 Then

blSE_DACL_AUTO_INHERITED = False

objSD.ControlFlags = (objSD.ControlFlags Or &H400)

'自動(dòng)繼承位置位,如果是剛創(chuàng)建的目錄或文件該位是不置位的,需要置位

End If

If blInherit = True Then

objSD.ControlFlags = (objSD.ControlFlags And &HEFFF)

'阻止繼承復(fù)位

Else

objSD.ControlFlags = (objSD.ControlFlags Or &H1400)

'阻止繼承位置位,自動(dòng)繼承位置位

End If

objOldDacl = objSD.Dacl

ReDim objNewDacl(0)

Set objNewDacl(0) = objNewACE

If IsArray(objOldDacl) Then

'權(quán)限為空時(shí)objOldDacl不是集合不可遍歷

For Each objACE In objOldDacl

If (blSE_DACL_AUTO_INHERITED=False And blInherit=True) Or ((objACE.AceFlags And 16)>0 And (blInherit=True) Or (LCase(objACE.Trustee.Name)=LCase(strUser))) Then

'Do nothing

'當(dāng)自動(dòng)繼承位置位為0時(shí)即使時(shí)繼承的權(quán)限也會(huì)顯示為非繼承,這時(shí)所有權(quán)限都不設(shè)置

'當(dāng)自動(dòng)繼承位置位為0時(shí),在繼承父目錄權(quán)限的情況下不設(shè)置繼承的權(quán)限.賬戶和需要加權(quán)限的賬戶一樣時(shí)不設(shè)置權(quán)限

Else

Ubd = UBound(objNewDacl)

ReDim preserve objNewDacl(Ubd+1)

Set objNewDacl(Ubd+1) = objACE

End If

Next

End If

objSD.Dacl = objNewDacl

'提交設(shè)置修改

Call objFileSecSetting.SetSecurityDescriptor(objSD)

AddPermission = 0

Set fso = Nothing

End Function

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