FileSecurity 类
定义
重要
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表示文件的访问控制和审核安全。 此类不能被继承。
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- 继承
- 属性
示例
下面的代码示例使用 FileSecurity 类从文件中添加和删除访问控制列表 (ACL) 条目。 你必须提供有效的用户或组帐户以运行此示例。
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
注解
FileSecurity类指定系统文件的访问权限以及如何审核访问尝试。 此类将访问和审核权限表示为一组规则。 每个访问规则由一个 FileSystemAccessRule 对象表示，而每个审核规则由一个 FileSystemAuditRule 对象表示。
类FileSecurity是基础Microsoft Windows 文件安全系统的抽象。 在此系统中，每个文件都有一个可自由支配的访问控制列表 (DACL) ，用于控制对文件的访问，以及一个系统访问控制列表 (SACL) ，该列表指定要审核的访问控制尝试。 FileSystemAccessRule和 FileSystemAuditRule 类是访问控制项的抽象， (ACE) 组成 DACL 和 SCL。
类 FileSecurity 隐藏了 DACL 和 SCL 的许多详细信息;无需担心 ACE 排序或 NULL DACLS。
FileSecurity使用 类检索、添加或更改表示文件的 DACL 和 SACL 的访问规则。
若要对文件保留新的或更改的访问或审核规则，请使用 SetAccessControl 方法。 若要从现有文件检索访问或审核规则，请使用 GetAccessControl 方法。
构造函数
| FileSecurity() |
初始化 FileSecurity 类的新实例。 |
| FileSecurity(String, AccessControlSections) |
使用 FileSecurity 枚举的指定值从指定文件初始化 AccessControlSections 类的新实例。 |
属性
方法
适用于
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