Directory.GetAccessControl 方法

參考

定義

命名空間:: System.IO

組件:: mscorlib.dll

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

傳回目錄的 Windows 存取控制清單 (ACL)。

多載

GetAccessControl(String)	取得 DirectorySecurity 物件，該物件會封裝指定目錄的存取控制清單 (ACL) 項目。
GetAccessControl(String, AccessControlSections)	取得 DirectorySecurity 物件，該物件會為指定的目錄封裝指定類型的存取控制清單 (ACL) 項目。

GetAccessControl(String)

取得 DirectorySecurity 物件，該物件會封裝指定目錄的存取控制清單 (ACL) 項目。

public:
 static System::Security::AccessControl::DirectorySecurity ^ GetAccessControl(System::String ^ path);

public static System.Security.AccessControl.DirectorySecurity GetAccessControl (string path);

static member GetAccessControl : string -> System.Security.AccessControl.DirectorySecurity

Public Shared Function GetAccessControl (path As String) As DirectorySecurity

參數

path: String

目錄的路徑，內含 DirectorySecurity 物件，其描述了檔案的存取控制清單 (ACL) 資訊。

傳回

DirectorySecurity

封裝 path 參數所描述之檔案存取控制規則的物件。

例外狀況

ArgumentNullException

path 參數為 null。

IOException

開啟目錄時發生 I/O 錯誤。

SystemException

發生系統層級錯誤，例如找不到目錄。特定的例外狀況可能為 SystemException 的子類別。

UnauthorizedAccessException

path 參數指定了唯讀的目錄。

-或-

這個作業在目前平台不受支援。

-或-

呼叫端沒有必要的權限。

範例

下列範例會使用 GetAccessControl 和 SetAccessControl 方法來新增訪問控制清單 (ACL) 項目，然後從目錄中移除 ACL 專案。您必須提供有效的使用者或群組帳戶，才能執行這個範例。

using namespace System;
using namespace System::IO;
using namespace System::Security::AccessControl;

// Adds an ACL entry on the specified directory for the
// specified account.
void AddDirectorySecurity(String^ directoryName, String^ account, 
     FileSystemRights rights, AccessControlType controlType)
{
    // Create a new DirectoryInfo object.
    DirectoryInfo^ dInfo = gcnew DirectoryInfo(directoryName);

    // Get a DirectorySecurity object that represents the
    // current security settings.
    DirectorySecurity^ dSecurity = dInfo->GetAccessControl();

    // Add the FileSystemAccessRule to the security settings.
    dSecurity->AddAccessRule( gcnew FileSystemAccessRule(account,
        rights, controlType));

    // Set the new access settings.
    dInfo->SetAccessControl(dSecurity);
}

// Removes an ACL entry on the specified directory for the
// specified account.
void RemoveDirectorySecurity(String^ directoryName, String^ account,
     FileSystemRights rights, AccessControlType controlType)
{
    // Create a new DirectoryInfo object.
    DirectoryInfo^ dInfo = gcnew DirectoryInfo(directoryName);

    // Get a DirectorySecurity object that represents the
    // current security settings.
    DirectorySecurity^ dSecurity = dInfo->GetAccessControl();

    // Add the FileSystemAccessRule to the security settings.
    dSecurity->RemoveAccessRule(gcnew FileSystemAccessRule(account,
        rights, controlType));

    // Set the new access settings.
    dInfo->SetAccessControl(dSecurity);
}    

int main()
{
    String^ directoryName = "TestDirectory";
    String^ accountName = "MYDOMAIN\\MyAccount";
    if (!Directory::Exists(directoryName))
    {
        Console::WriteLine("The directory {0} could not be found.", 
            directoryName);
        return 0;
    }
    try
    {
        Console::WriteLine("Adding access control entry for {0}",
            directoryName);

        // Add the access control entry to the directory.
        AddDirectorySecurity(directoryName, accountName,
            FileSystemRights::ReadData, AccessControlType::Allow);

        Console::WriteLine("Removing access control entry from {0}",
            directoryName);

        // Remove the access control entry from the directory.
        RemoveDirectorySecurity(directoryName, accountName, 
            FileSystemRights::ReadData, AccessControlType::Allow);

        Console::WriteLine("Done.");
    }
    catch (UnauthorizedAccessException^)
    {
        Console::WriteLine("You are not authorised to carry" +
            " out this procedure.");
    }
    catch (System::Security::Principal::
        IdentityNotMappedException^)
    {
        Console::WriteLine("The account {0} could not be found.", accountName);
    }
}

using System;
using System.IO;
using System.Security.AccessControl;

namespace FileSystemExample
{
    class DirectoryExample
    {
        public static void Main()
        {
            try
            {
                string DirectoryName = "TestDirectory";

                Console.WriteLine("Adding access control entry for " + DirectoryName);

                // Add the access control entry to the directory.
                AddDirectorySecurity(DirectoryName, @"MYDOMAIN\MyAccount", FileSystemRights.ReadData, AccessControlType.Allow);

                Console.WriteLine("Removing access control entry from " + DirectoryName);

                // Remove the access control entry from the directory.
                RemoveDirectorySecurity(DirectoryName, @"MYDOMAIN\MyAccount", FileSystemRights.ReadData, AccessControlType.Allow);

                Console.WriteLine("Done.");
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
            }

            Console.ReadLine();
        }

        // Adds an ACL entry on the specified directory for the specified account.
        public static void AddDirectorySecurity(string DirectoryName, string Account, FileSystemRights Rights, AccessControlType ControlType)
        {
            // Create a new DirectoryInfo object.
            DirectoryInfo dInfo = new DirectoryInfo(DirectoryName);

            // Get a DirectorySecurity object that represents the
            // current security settings.
            DirectorySecurity dSecurity = dInfo.GetAccessControl();

            // Add the FileSystemAccessRule to the security settings.
            dSecurity.AddAccessRule(new FileSystemAccessRule(Account,
                                                            Rights,
                                                            ControlType));

            // Set the new access settings.
            dInfo.SetAccessControl(dSecurity);
        }

        // Removes an ACL entry on the specified directory for the specified account.
        public static void RemoveDirectorySecurity(string DirectoryName, string Account, FileSystemRights Rights, AccessControlType ControlType)
        {
            // Create a new DirectoryInfo object.
            DirectoryInfo dInfo = new DirectoryInfo(DirectoryName);

            // Get a DirectorySecurity object that represents the
            // current security settings.
            DirectorySecurity dSecurity = dInfo.GetAccessControl();

            // Add the FileSystemAccessRule to the security settings.
            dSecurity.RemoveAccessRule(new FileSystemAccessRule(Account,
                                                            Rights,
                                                            ControlType));

            // Set the new access settings.
            dInfo.SetAccessControl(dSecurity);
        }
    }
}

open System
open System.IO
open System.Security.AccessControl

// Adds an ACL entry on the specified directory for the specified account.
let addDirectorySecurity fileName (account: string) rights controlType =
    // Create a new DirectoryInfo object.
    let dInfo = DirectoryInfo fileName

    // Get a DirectorySecurity object that represents the
    // current security settings.
    let dSecurity = dInfo.GetAccessControl()

    // Add the FileSystemAccessRule to the security settings.
    dSecurity.AddAccessRule(FileSystemAccessRule(account, rights, controlType))

    // Set the new access settings.
    dInfo.SetAccessControl dSecurity

// Removes an ACL entry on the specified directory for the specified account.
let removeDirectorySecurity fileName (account: string) rights controlType =
    // Create a new DirectoryInfo object.
    let dInfo = DirectoryInfo fileName

    // Get a DirectorySecurity object that represents the
    // current security settings.
    let dSecurity = dInfo.GetAccessControl()

    // Add the FileSystemAccessRule to the security settings.
    dSecurity.RemoveAccessRule(FileSystemAccessRule(account, rights, controlType)) |> ignore

    // Set the new access settings.
    dInfo.SetAccessControl dSecurity

try
    let DirectoryName = "TestDirectory"

    printfn $"Adding access control entry for {DirectoryName}"

    // Add the access control entry to the directory.
    addDirectorySecurity DirectoryName @"MYDOMAIN\MyAccount" FileSystemRights.ReadData AccessControlType.Allow

    printfn $"Removing access control entry from {DirectoryName}"

    // Remove the access control entry from the directory.
    removeDirectorySecurity DirectoryName @"MYDOMAIN\MyAccount" FileSystemRights.ReadData AccessControlType.Allow

    printfn "Done."
with e ->
    printfn $"{e}"

Imports System.IO
Imports System.Security.AccessControl



Module DirectoryExample

    Sub Main()
        Try
            Dim DirectoryName As String = "TestDirectory"

            Console.WriteLine("Adding access control entry for " + DirectoryName)

            ' Add the access control entry to the directory.
            AddDirectorySecurity(DirectoryName, "MYDOMAIN\MyAccount", FileSystemRights.ReadData, AccessControlType.Allow)

            Console.WriteLine("Removing access control entry from " + DirectoryName)

            ' Remove the access control entry from the directory.
            RemoveDirectorySecurity(DirectoryName, "MYDOMAIN\MyAccount", FileSystemRights.ReadData, AccessControlType.Allow)

            Console.WriteLine("Done.")
        Catch e As Exception
            Console.WriteLine(e)
        End Try

        Console.ReadLine()

    End Sub


    ' Adds an ACL entry on the specified directory for the specified account.
    Sub AddDirectorySecurity(ByVal FileName As String, ByVal Account As String, ByVal Rights As FileSystemRights, ByVal ControlType As AccessControlType)
        ' Create a new DirectoryInfoobject.
        Dim dInfo As New DirectoryInfo(FileName)

        ' Get a DirectorySecurity object that represents the 
        ' current security settings.
        Dim dSecurity As DirectorySecurity = dInfo.GetAccessControl()

        ' Add the FileSystemAccessRule to the security settings. 
        dSecurity.AddAccessRule(New FileSystemAccessRule(Account, Rights, ControlType))

        ' Set the new access settings.
        dInfo.SetAccessControl(dSecurity)

    End Sub


    ' Removes an ACL entry on the specified directory for the specified account.
    Sub RemoveDirectorySecurity(ByVal FileName As String, ByVal Account As String, ByVal Rights As FileSystemRights, ByVal ControlType As AccessControlType)
        ' Create a new DirectoryInfo object.
        Dim dInfo As New DirectoryInfo(FileName)

        ' Get a DirectorySecurity object that represents the 
        ' current security settings.
        Dim dSecurity As DirectorySecurity = dInfo.GetAccessControl()

        ' Add the FileSystemAccessRule to the security settings. 
        dSecurity.RemoveAccessRule(New FileSystemAccessRule(Account, Rights, ControlType))

        ' Set the new access settings.
        dInfo.SetAccessControl(dSecurity)

    End Sub
End Module

備註

GetAccessControl使用方法來擷取目錄 (ACL) 項目的訪問控制清單。

ACL 描述具有或沒有指定檔案或目錄上特定動作許可權的個人和/或群組。如需詳細資訊，請參閱如何：新增或移除存取控制清單項目。

在NTFS環境中，如果使用者具有ListDirectory父資料夾的許可權，ReadAttributes則會ReadExtendedAttributes授與使用者。若要拒絕 ReadAttributes 和 ReadExtendedAttributes，請在父目錄上拒絕 ListDirectory 。

適用於

GetAccessControl(String, AccessControlSections)

取得 DirectorySecurity 物件，該物件會為指定的目錄封裝指定類型的存取控制清單 (ACL) 項目。

public:
 static System::Security::AccessControl::DirectorySecurity ^ GetAccessControl(System::String ^ path, System::Security::AccessControl::AccessControlSections includeSections);

public static System.Security.AccessControl.DirectorySecurity GetAccessControl (string path, System.Security.AccessControl.AccessControlSections includeSections);

static member GetAccessControl : string * System.Security.AccessControl.AccessControlSections -> System.Security.AccessControl.DirectorySecurity

Public Shared Function GetAccessControl (path As String, includeSections As AccessControlSections) As DirectorySecurity

參數

path: String

目錄的路徑，內含 DirectorySecurity 物件，其描述了檔案的存取控制清單 (ACL) 資訊。

includeSections: AccessControlSections

其中一個 AccessControlSections 值，指定要接收的存取控制清單 (ACL) 資訊之類型。

傳回

DirectorySecurity

封裝 path 參數所描述之檔案存取控制規則的物件。

例外狀況

ArgumentNullException

path 參數為 null。

IOException

開啟目錄時發生 I/O 錯誤。

SystemException

發生系統層級錯誤，例如找不到目錄。特定的例外狀況可能為 SystemException 的子類別。

UnauthorizedAccessException

path 參數指定了唯讀的目錄。

-或-

這個作業在目前平台不受支援。

-或-

呼叫端沒有必要的權限。

備註

GetAccessControl使用方法來擷取目錄 (ACL) 項目的訪問控制清單。

ACL 描述具有或沒有指定檔案或目錄上特定動作許可權的個人和/或群組。如需詳細資訊，請參閱如何：新增或移除存取控制清單項目。

適用於

Directory.GetAccessControl 方法

定義

多載

GetAccessControl(String)

參數

傳回

例外狀況

範例

備註

適用於

GetAccessControl(String, AccessControlSections)

參數

傳回

例外狀況

備註

適用於

意見反應

其他資源