File.GetAccessControl Methode

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

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

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

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

Parameter

Gibt zurück

Ein FileSecurity-Objekt, das die Zugriffssteuerungsregeln für die vom path-Parameter beschriebene Datei kapselt.

Ausnahmen

Hinweise

Verwenden Sie die GetAccessControl -Methode, um die Einträge der Zugriffssteuerungsliste (Access Control List, ACL) für eine Datei abzurufen.

Eine ACL beschreibt Personen und/oder Gruppen, die über Rechte für bestimmte Aktionen für die angegebene Datei verfügen oder nicht besitzen. Weitere Informationen finden Sie unter Vorgehensweise: Hinzufügen oder Entfernen von Zugriffssteuerungslisten-Einträgen.

In NTFS-Umgebungen und werden dem Benutzer gewährt, ReadAttributesReadExtendedAttributes wenn der Benutzer über Rechte für den übergeordneten Ordner verfügt ListDirectory . Um und ReadExtendedAttributeszu verweigernReadAttributes, verweigern ListDirectory Sie im übergeordneten Verzeichnis.

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

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

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

Public Shared Function GetAccessControl (path As String) As FileSecurity

Parameter

Gibt zurück

Ein FileSecurity-Objekt, das die Zugriffssteuerungsregeln für die vom path-Parameter beschriebene Datei kapselt.

Ausnahmen

Beispiele

Im folgenden Codebeispiel werden die GetAccessControl Methoden und SetAccessControl verwendet, um einen Eintrag für die Zugriffssteuerungsliste (Access Control List, ACL) einer Datei hinzuzufügen und daraus zu entfernen. Sie müssen ein gültiges Benutzer- oder Gruppenkonto angeben, um dieses Beispiel auszuführen.

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

// Adds an ACL entry on the specified file for the specified account.

void AddFileSecurity(String^ fileName, String^ account, 
                        FileSystemRights rights, AccessControlType controlType)
{
    // Get a FileSecurity object that represents the 
    // current security settings.
    FileSecurity^ fSecurity = File::GetAccessControl(fileName);

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

    // Set the new access settings.
    File::SetAccessControl(fileName, fSecurity);
}

// Removes an ACL entry on the specified file for the specified account.

void RemoveFileSecurity(String^ fileName, String^ account, 
                        FileSystemRights rights, AccessControlType controlType)
{

    // Get a FileSecurity object that represents the 
    // current security settings.
    FileSecurity^ fSecurity = File::GetAccessControl(fileName);

    // Remove the FileSystemAccessRule from the security settings. 
    fSecurity->RemoveAccessRule(gcnew FileSystemAccessRule
                                      (account,rights, controlType));

    // Set the new access settings.
    File::SetAccessControl(fileName, fSecurity);
}

int main()
{
    try
    {
        String^ fileName = "test.xml";

        Console::WriteLine("Adding access control entry for " + fileName);

        // Add the access control entry to the file.
        AddFileSecurity(fileName, "MYDOMAIN\\MyAccount", 
            FileSystemRights::ReadData, AccessControlType::Allow);

        Console::WriteLine("Removing access control entry from " + fileName);

        // Remove the access control entry from the file.
        RemoveFileSecurity(fileName, "MYDOMAIN\\MyAccount", 
            FileSystemRights::ReadData, AccessControlType::Allow);

        Console::WriteLine("Done.");
    }
    catch (Exception^ ex)
    {
        Console::WriteLine(ex->Message);
    }
}

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

namespace FileSystemExample
{
    class FileExample
    {
        public static void Main()
        {
            try
            {
                string fileName = "test.xml";

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

                // Add the access control entry to the file.
                AddFileSecurity(fileName, @"DomainName\AccountName",
                    FileSystemRights.ReadData, AccessControlType.Allow);

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

                // Remove the access control entry from the file.
                RemoveFileSecurity(fileName, @"DomainName\AccountName",
                    FileSystemRights.ReadData, AccessControlType.Allow);

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

        // Adds an ACL entry on the specified file for the specified account.
        public static void AddFileSecurity(string fileName, string account,
            FileSystemRights rights, AccessControlType controlType)
        {

            // Get a FileSecurity object that represents the
            // current security settings.
            FileSecurity fSecurity = File.GetAccessControl(fileName);

            // Add the FileSystemAccessRule to the security settings.
            fSecurity.AddAccessRule(new FileSystemAccessRule(account,
                rights, controlType));

            // Set the new access settings.
            File.SetAccessControl(fileName, fSecurity);
        }

        // Removes an ACL entry on the specified file for the specified account.
        public static void RemoveFileSecurity(string fileName, string account,
            FileSystemRights rights, AccessControlType controlType)
        {

            // Get a FileSecurity object that represents the
            // current security settings.
            FileSecurity fSecurity = File.GetAccessControl(fileName);

            // Remove the FileSystemAccessRule from the security settings.
            fSecurity.RemoveAccessRule(new FileSystemAccessRule(account,
                rights, controlType));

            // Set the new access settings.
            File.SetAccessControl(fileName, fSecurity);
        }
    }
}

open System.IO
open System.Security.AccessControl

// Adds an ACL entry on the specified file for the specified account.
let addFileSecurity fileName (account: string) rights controlType =
    // Get a FileSecurity object that represents the
    // current security settings.
    let fSecurity = File.GetAccessControl fileName

    // Add the FileSystemAccessRule to the security settings.
    FileSystemAccessRule(account, rights, controlType)
    |> fSecurity.AddAccessRule

    // Set the new access settings.
    File.SetAccessControl(fileName, fSecurity)

// Removes an ACL entry on the specified file for the specified account.
let removeFileSecurity fileName (account: string) rights controlType =
    // Get a FileSecurity object that represents the
    // current security settings.
    let fSecurity = File.GetAccessControl fileName

    // Remove the FileSystemAccessRule from the security settings.
    fSecurity.RemoveAccessRule(FileSystemAccessRule(account, rights, controlType))
    |> ignore

    // Set the new access settings.
    File.SetAccessControl(fileName, fSecurity)

let fileName = "test.xml"

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

// Add the access control entry to the file.
addFileSecurity fileName @"DomainName\AccountName" FileSystemRights.ReadData AccessControlType.Allow

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

// Remove the access control entry from the file.
removeFileSecurity fileName @"DomainName\AccountName" FileSystemRights.ReadData AccessControlType.Allow

printfn "Done."

Imports System.IO
Imports System.Security.AccessControl



Module FileExample

    Sub Main()
        Try
            Dim fileName As String = "test.xml"

            Console.WriteLine("Adding access control entry for " & fileName)

            ' Add the access control entry to the file.
            AddFileSecurity(fileName, "DomainName\AccountName", _
                FileSystemRights.ReadData, AccessControlType.Allow)

            Console.WriteLine("Removing access control entry from " & fileName)

            ' Remove the access control entry from the file.
            RemoveFileSecurity(fileName, "DomainName\AccountName", _
                FileSystemRights.ReadData, AccessControlType.Allow)

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

    End Sub


    ' Adds an ACL entry on the specified file for the specified account.
    Sub AddFileSecurity(ByVal fileName As String, ByVal account As String, _
        ByVal rights As FileSystemRights, ByVal controlType As AccessControlType)
  
        ' Get a FileSecurity object that represents the 
        ' current security settings.
        Dim fSecurity As FileSecurity = File.GetAccessControl(fileName)

        ' Add the FileSystemAccessRule to the security settings. 
        Dim accessRule As FileSystemAccessRule = _
            New FileSystemAccessRule(account, rights, controlType)

        fSecurity.AddAccessRule(accessRule)

        ' Set the new access settings.
        File.SetAccessControl(fileName, fSecurity)

    End Sub


    ' Removes an ACL entry on the specified file for the specified account.
    Sub RemoveFileSecurity(ByVal fileName As String, ByVal account As String, _
        ByVal rights As FileSystemRights, ByVal controlType As AccessControlType)

        ' Get a FileSecurity object that represents the 
        ' current security settings.
        Dim fSecurity As FileSecurity = File.GetAccessControl(fileName)

        ' Remove the FileSystemAccessRule from the security settings. 
        fSecurity.RemoveAccessRule(New FileSystemAccessRule(account, _
            rights, controlType))

        ' Set the new access settings.
        File.SetAccessControl(fileName, fSecurity)

    End Sub
End Module

Hinweise

Verwenden Sie die GetAccessControl -Methode, um die Einträge der Zugriffssteuerungsliste (Access Control List, ACL) für eine Datei abzurufen.

Eine ACL beschreibt Personen und/oder Gruppen, die über Rechte für bestimmte Aktionen für die angegebene Datei verfügen oder nicht besitzen. Weitere Informationen finden Sie unter Vorgehensweise: Hinzufügen oder Entfernen von Zugriffssteuerungslisten-Einträgen.

In NTFS-Umgebungen und werden dem Benutzer gewährt, ReadAttributesReadExtendedAttributes wenn der Benutzer über Rechte für den übergeordneten Ordner verfügt ListDirectory . Um und ReadExtendedAttributeszu verweigernReadAttributes, verweigern ListDirectory Sie im übergeordneten Verzeichnis.