FileInfo.GetAccessControl Metoda

Definicja

Pobiera FileSecurity obiekt, który hermetyzuje wpisy listy kontroli dostępu (ACL) dla pliku opisanego przez bieżący FileInfo obiekt.Gets a FileSecurity object that encapsulates the access control list (ACL) entries for the file described by the current FileInfo object.

Przeciążenia

GetAccessControl()

Pobiera FileSecurity obiekt, który hermetyzuje wpisy listy kontroli dostępu (ACL) dla pliku opisanego przez bieżący FileInfo obiekt.Gets a FileSecurity object that encapsulates the access control list (ACL) entries for the file described by the current FileInfo object.

GetAccessControl(AccessControlSections)

Pobiera FileSecurity obiekt, który hermetyzuje określony typ wpisów listy kontroli dostępu (ACL) dla pliku opisanego przez bieżący FileInfo obiekt.Gets a FileSecurity object that encapsulates the specified type of access control list (ACL) entries for the file described by the current FileInfo object.

Uwagi

Użyj GetAccessControl metod, aby pobrać wpisy listy kontroli dostępu (ACL) dla bieżącego pliku.Use the GetAccessControl methods to retrieve the access control list (ACL) entries for the current file.

GetAccessControl()

Pobiera FileSecurity obiekt, który hermetyzuje wpisy listy kontroli dostępu (ACL) dla pliku opisanego przez bieżący FileInfo obiekt.Gets a FileSecurity object that encapsulates the access control list (ACL) entries for the file described by the current FileInfo object.

public:
 System::Security::AccessControl::FileSecurity ^ GetAccessControl();
public System.Security.AccessControl.FileSecurity GetAccessControl ();
member this.GetAccessControl : unit -> System.Security.AccessControl.FileSecurity
Public Function GetAccessControl () As FileSecurity

Zwraca

FileSecurity

FileSecurityObiekt, który hermetyzuje reguły kontroli dostępu dla bieżącego pliku.A FileSecurity object that encapsulates the access control rules for the current file.

Wyjątki

Podczas otwierania pliku wystąpił błąd We/Wy.An I/O error occurred while opening the file.

Bieżące konto systemowe nie ma uprawnień administracyjnych.The current system account does not have administrative privileges.

Nie można odnaleźć pliku.The file could not be found.

Ta operacja nie jest obsługiwana na bieżącej platformie.This operation is not supported on the current platform.

-lub--or-

Obiekt wywołujący nie posiada wymaganych uprawnień.The caller does not have the required permission.

Przykłady

Poniższy przykład kodu używa GetAccessControl metody i SetAccessControl metody do dodawania i usuwania wpisu listy kontroli dostępu (ACL) z pliku.The following code example uses the GetAccessControl method and the SetAccessControl method to add and then remove an access control list (ACL) entry from a file. Aby uruchomić ten przykład, należy podać prawidłowe konto użytkownika lub grupy.You must supply a valid user or group account to run this example.

#using <System.Security.dll>
using namespace System;
using namespace System::IO;
using namespace System::Security::AccessControl;
using namespace System::Security::Principal;

// Adds an ACL entry on the specified file for the specified account.
static void AddFileSecurity(String^ fileName, String^ account,
                     FileSystemRights^ rights, 
                     AccessControlType^ controlType)
{
    // Create a new FileInfo object.
    FileInfo^ fInfo = gcnew FileInfo(fileName);
    if (!fInfo->Exists)
    {
        fInfo->Create();
    }

    // Get a FileSecurity object that represents the
    // current security settings.
    FileSecurity^ fSecurity = fInfo->GetAccessControl();

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

    // Set the new access settings.
    fInfo->SetAccessControl(fSecurity);
}

// Removes an ACL entry on the specified file for the specified account.
static void RemoveFileSecurity(String^ fileName, String^ account,
                        FileSystemRights^ rights, 
                        AccessControlType^ controlType)
{
    // Create a new FileInfo object.
    FileInfo^ fInfo = gcnew FileInfo(fileName);
    if (!fInfo->Exists)
    {
        fInfo->Create();
    }

    // Get a FileSecurity object that represents the
    // current security settings.
    FileSecurity^ fSecurity = fInfo->GetAccessControl();

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

    // Set the new access settings.
    fInfo->SetAccessControl(fSecurity);
}

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

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

        // Add the access control entry to the file.
        // Before compiling this snippet, change MyDomain to your 
        // domain name and MyAccessAccount to the name 
        // you use to access your domain.
        AddFileSecurity(fileName, "MyDomain\\MyAccessAccount",
            FileSystemRights::ReadData, AccessControlType::Allow);

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

        // Remove the access control entry from the file.
        // Before compiling this snippet, change MyDomain to your 
        // domain name and MyAccessAccount to the name 
        // you use to access your domain.
        RemoveFileSecurity(fileName, "MyDomain\\MyAccessAccount",
            FileSystemRights::ReadData, AccessControlType::Allow);

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

}
//This code produces output similar to the following; 
//results may vary based on the computer/file structure/etc.:
//
//Adding access control entry for c:\test.xml
//Removing access control entry from c:\test.xml
//Done.
//
using System;
using System.IO;
using System.Security.AccessControl;

namespace FileSystemExample
{
    class FileExample
    {
        public static void Main()
        {
            try
            {
                string FileName = "c:/test.xml";

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

                // Add the access control entry to the file.
                // Before compiling this snippet, change MyDomain to your
                // domain name and MyAccessAccount to the name
                // you use to access your domain.
                AddFileSecurity(FileName, @"MyDomain\MyAccessAccount", FileSystemRights.ReadData, AccessControlType.Allow);

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

                // Remove the access control entry from the file.
                // Before compiling this snippet, change MyDomain to your
                // domain name and MyAccessAccount to the name
                // you use to access your domain.
                RemoveFileSecurity(FileName, @"MyDomain\MyAccessAccount", 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)
        {
            // Create a new FileInfo object.
            FileInfo fInfo = new FileInfo(FileName);

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

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

            // Set the new access settings.
            fInfo.SetAccessControl(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)
        {
            // Create a new FileInfo object.
            FileInfo fInfo = new FileInfo(FileName);

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

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

            // Set the new access settings.
            fInfo.SetAccessControl(fSecurity);
        }
    }
}
//This code produces output similar to the following;
//results may vary based on the computer/file structure/etc.:
//
//Adding access control entry for c:\test.xml
//Removing access control entry from c:\test.xml
//Done.
//
Imports System.IO
Imports System.Security.AccessControl



Module FileExample

    Sub Main()
        Try
            Dim FileName As String = "c:\test.xml"

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

            ' Add the access control entry to the file.
            ' Before compiling this snippet, change MyDomain to your 
            ' domain name and MyAccessAccount to the name 
            ' you use to access your domain.
            AddFileSecurity(FileName, "MyDomain\\MyAccessAccount", FileSystemRights.ReadData, AccessControlType.Allow)

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

            ' Remove the access control entry from the file.
            ' Before compiling this snippet, change MyDomain to your 
            ' domain name and MyAccessAccount to the name 
            ' you use to access your domain.
            RemoveFileSecurity(FileName, "MyDomain\\MyAccessAccount", 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)
        ' Create a new FileInfo object.
        Dim fInfo As New FileInfo(FileName)

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

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

        ' Set the new access settings.
        fInfo.SetAccessControl(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)
        ' Create a new FileInfo object.
        Dim fInfo As New FileInfo(FileName)

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

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

        ' Set the new access settings.
        fInfo.SetAccessControl(fSecurity)

    End Sub
End Module
'This code produces output similar to the following; 
'results may vary based on the computer/file structure/etc.:
'
'Adding access control entry for c:\test.xml
'Removing access control entry from c:\test.xml
'Done.
'

Uwagi

Użyj GetAccessControl metody, aby pobrać wpisy listy kontroli dostępu (ACL) dla bieżącego pliku.Use the GetAccessControl method to retrieve the access control list (ACL) entries for the current file.

Lista ACL opisuje osoby i/lub grupy, które mają lub nie mają uprawnień do określonych działań w danym pliku.An ACL describes individuals and/or groups who have, or do not have, rights to specific actions on the given file. Aby uzyskać więcej informacji, zobacz jak: Dodawanie lub usuwanie wpisów listy Access Control.For more information, see How to: Add or Remove Access Control List Entries.

Dotyczy

GetAccessControl(AccessControlSections)

Pobiera FileSecurity obiekt, który hermetyzuje określony typ wpisów listy kontroli dostępu (ACL) dla pliku opisanego przez bieżący FileInfo obiekt.Gets a FileSecurity object that encapsulates the specified type of access control list (ACL) entries for the file described by the current FileInfo object.

public:
 System::Security::AccessControl::FileSecurity ^ GetAccessControl(System::Security::AccessControl::AccessControlSections includeSections);
public System.Security.AccessControl.FileSecurity GetAccessControl (System.Security.AccessControl.AccessControlSections includeSections);
member this.GetAccessControl : System.Security.AccessControl.AccessControlSections -> System.Security.AccessControl.FileSecurity
Public Function GetAccessControl (includeSections As AccessControlSections) As FileSecurity

Parametry

includeSections
AccessControlSections

Jedna z AccessControlSections wartości, która określa grupę wpisów kontroli dostępu do pobrania.One of the AccessControlSections values that specifies which group of access control entries to retrieve.

Zwraca

FileSecurity

FileSecurityObiekt, który hermetyzuje reguły kontroli dostępu dla bieżącego pliku.A FileSecurity object that encapsulates the access control rules for the current file.

Wyjątki

Podczas otwierania pliku wystąpił błąd We/Wy.An I/O error occurred while opening the file.

Bieżące konto systemowe nie ma uprawnień administracyjnych.The current system account does not have administrative privileges.

Nie można odnaleźć pliku.The file could not be found.

Ta operacja nie jest obsługiwana na bieżącej platformie.This operation is not supported on the current platform.

-lub--or-

Obiekt wywołujący nie posiada wymaganych uprawnień.The caller does not have the required permission.

Uwagi

Użyj GetAccessControl metody, aby pobrać wpisy listy kontroli dostępu (ACL) dla bieżącego pliku.Use the GetAccessControl method to retrieve the access control list (ACL) entries for the current file.

Lista ACL opisuje osoby i/lub grupy, które mają lub nie mają uprawnień do określonych działań w danym pliku.An ACL describes individuals and/or groups who have, or do not have, rights to specific actions on the given file. Aby uzyskać więcej informacji, zobacz jak: Dodawanie lub usuwanie wpisów listy Access Control.For more information, see How to: Add or Remove Access Control List Entries.

Dotyczy