DirectoryInfo.GetAccessControl Método

Definição

Obtém as entradas da ACL (lista de controle de acesso) para o diretório atual.Gets the access control list (ACL) entries for the current directory.

Sobrecargas

GetAccessControl()

Obtém um objeto DirectorySecurity que encapsula as entradas de ACL (lista de controle de acesso) do diretório descrito pelo objeto DirectoryInfo atual.Gets a DirectorySecurity object that encapsulates the access control list (ACL) entries for the directory described by the current DirectoryInfo object.

GetAccessControl(AccessControlSections)

Obtém um objeto DirectorySecurity que encapsula o tipo especificado de entradas de ACL (lista de controle de acesso) do diretório descrito pelo objeto DirectoryInfo atual.Gets a DirectorySecurity object that encapsulates the specified type of access control list (ACL) entries for the directory described by the current DirectoryInfo object.

Comentários

Use GetAccessControl métodos para recuperar as entradas de ACL (lista de controle de acesso) do arquivo atual.Use GetAccessControl methods to retrieve the access control list (ACL) entries for the current file.

Para saber mais, confira Como adicionar ou remover entradas da lista de controle de acesso.For more information, see How to: Add or Remove Access Control List Entries.

GetAccessControl()

Obtém um objeto DirectorySecurity que encapsula as entradas de ACL (lista de controle de acesso) do diretório descrito pelo objeto DirectoryInfo atual.Gets a DirectorySecurity object that encapsulates the access control list (ACL) entries for the directory described by the current DirectoryInfo object.

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

Retornos

DirectorySecurity

Um objeto DirectorySecurity que encapsula as regras de controle de acesso do diretório.A DirectorySecurity object that encapsulates the access control rules for the directory.

Exceções

O diretório não pode ser encontrado ou modificado.The directory could not be found or modified.

O diretório é somente leitura.The directory is read-only.

- ou --or-

Não há suporte para essa operação na plataforma atual.This operation is not supported on the current platform.

- ou --or-

O chamador não tem a permissão necessária.The caller does not have the required permission.

Ocorreu um erro de E/S ao abrir o diretório.An I/O error occurred while opening the directory.

Exemplos

O exemplo a seguir usa GetAccessControl os SetAccessControl métodos e para adicionar e remover uma entrada de lista de controle de acesso (ACL) de um diretório.The following example uses the GetAccessControl and SetAccessControl methods to add and then remove an access control list (ACL) entry from a directory.

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 FileName, string Account, FileSystemRights Rights, AccessControlType ControlType)
        {
            // Create a new DirectoryInfo object.
            DirectoryInfo dInfo = new DirectoryInfo(FileName);

            // 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 FileName, string Account, FileSystemRights Rights, AccessControlType ControlType)
        {
            // Create a new DirectoryInfo object.
            DirectoryInfo dInfo = new DirectoryInfo(FileName);

            // 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);
        }
    }
}

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

Comentários

Chamar essa sobrecarga de método é equivalente a chamar a GetAccessControl sobrecarga do método e especificar as seções de controle de acesso AccessControlSections.Access | AccessControlSections.Owner | AccessControlSections.Group ( AccessControlSections.Access Or AccessControlSections.Owner Or AccessControlSections.Group em Visual Basic).Calling this method overload is equivalent to calling the GetAccessControl method overload and specifying the access control sections AccessControlSections.Access | AccessControlSections.Owner | AccessControlSections.Group (AccessControlSections.Access Or AccessControlSections.Owner Or AccessControlSections.Group in Visual Basic).

Use o GetAccessControl método para recuperar as entradas da ACL (lista de controle de acesso) para o arquivo atual.Use the GetAccessControl method to retrieve the access control list (ACL) entries for the current file.

Uma ACL descreve indivíduos e/ou grupos que têm ou não têm direitos sobre ações específicas no arquivo ou diretório determinado.An ACL describes individuals and/or groups who have, or do not have, rights to specific actions on the given file or directory. Para saber mais, confira Como adicionar ou remover entradas da lista de controle de acesso.For more information, see How to: Add or Remove Access Control List Entries.

Aplica-se a

GetAccessControl(AccessControlSections)

Obtém um objeto DirectorySecurity que encapsula o tipo especificado de entradas de ACL (lista de controle de acesso) do diretório descrito pelo objeto DirectoryInfo atual.Gets a DirectorySecurity object that encapsulates the specified type of access control list (ACL) entries for the directory described by the current DirectoryInfo object.

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

Parâmetros

includeSections
AccessControlSections

Um dos valores AccessControlSections que especifica o tipo de informações de ACL (lista de controle de acesso) a serem recebidas.One of the AccessControlSections values that specifies the type of access control list (ACL) information to receive.

Retornos

DirectorySecurity

Um objeto DirectorySecurity que encapsula as regras de controle de acesso para o arquivo descrito pelo parâmetro path.A DirectorySecurity object that encapsulates the access control rules for the file described by the path parameter.

Exceções

O diretório não pode ser encontrado ou modificado.The directory could not be found or modified.

O processo atual não tem acesso para abrir o diretório.The current process does not have access to open the directory.
OUOR
O diretório é somente leitura.The directory is read-only.
OUOR
Não há suporte para essa operação na plataforma atual.This operation is not supported on the current platform.
OUOR
O chamador não tem a permissão necessária.The caller does not have the required permission.

Ocorreu um erro de E/S ao abrir o diretório.An I/O error occurred while opening the directory.

Comentários

Use o GetAccessControl método para recuperar as entradas da ACL (lista de controle de acesso) para o arquivo atual.Use the GetAccessControl method to retrieve the access control list (ACL) entries for the current file.

Uma ACL descreve indivíduos e/ou grupos que têm ou não têm direitos sobre ações específicas no arquivo ou diretório determinado.An ACL describes individuals and/or groups who have, or do not have, rights to specific actions on the given file or directory. Para saber mais, confira Como adicionar ou remover entradas da lista de controle de acesso.For more information, see How to: Add or Remove Access Control List Entries.

Aplica-se a