FileSecurity 類別
定義
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。
表示檔案的存取控制和稽核安全性。 此類別無法獲得繼承。
public ref class FileSecurity sealed : System::Security::AccessControl::FileSystemSecuritypublic sealed class FileSecurity : System.Security.AccessControl.FileSystemSecurity[System.Security.SecurityCritical]
public sealed class FileSecurity : System.Security.AccessControl.FileSystemSecuritytype FileSecurity = class
inherit FileSystemSecurity[<System.Security.SecurityCritical>]
type FileSecurity = class
inherit FileSystemSecurityPublic NotInheritable Class FileSecurity
Inherits FileSystemSecurity- 繼承
- 屬性
範例
下列程式碼範例會 FileSecurity 使用 類別，從檔案中新增和移除存取控制清單 (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 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);
}
}
}
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
備註
類別 FileSecurity 會指定系統檔案的存取權限，以及如何稽核存取嘗試。 這個類別會將存取權和稽核許可權表示為一組規則。 每個存取規則都是由 FileSystemAccessRule 物件表示，而每個稽核規則則由 FileSystemAuditRule 物件表示。
類別 FileSecurity 是基礎Microsoft Windows 檔案系統的抽象概念。 在此系統中，每個檔案都有一個選擇性存取控制清單 (DACL) ，可控制檔案的存取權，而系統存取控制清單 (SACL) ，這會指定稽核的存取控制嘗試。 FileSystemAccessRule和 FileSystemAuditRule 類別是組成 DACL 和 SCL 的 ACE (ACE) 存取控制專案的抽象概念。
類別 FileSecurity 會隱藏 DACL 和 SCL 的許多詳細資料;您不必擔心 ACE 排序或 Null DACLS。
FileSecurity使用 類別來擷取、新增或變更代表檔案 DACL 和 SACL 的存取規則。
若要將新的或變更的存取或稽核規則保存到檔案，請使用 SetAccessControl 方法。 若要從現有的檔案擷取存取或稽核規則，請使用 GetAccessControl 方法。
建構函式
| FileSecurity() |
初始化 FileSecurity 類別的新執行個體。 |
| FileSecurity(String, AccessControlSections) |
使用 FileSecurity 列舉型別 (Enumeration) 之指定的值，從指定的檔案初始化 AccessControlSections 類別的新執行個體。 |
屬性
方法
適用於
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