SecurityPermissionFlag 枚举
定义
重要
一些信息与预发行产品相关,相应产品在发行之前可能会进行重大修改。 对于此处提供的信息,Microsoft 不作任何明示或暗示的担保。
注意
Code Access Security is not supported or honored by the runtime.
注意
CAS support is not available with Silverlight applications.
为安全权限对象指定访问标志。
此枚举支持其成员值的按位组合。
public enum class SecurityPermissionFlag
[System.Flags]
[System.Obsolete("Code Access Security is not supported or honored by the runtime.", DiagnosticId="SYSLIB0003", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public enum SecurityPermissionFlag
[System.Flags]
public enum SecurityPermissionFlag
[System.Flags]
[System.Serializable]
public enum SecurityPermissionFlag
[System.Flags]
[System.Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
public enum SecurityPermissionFlag
[System.Flags]
[System.Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
[System.Obsolete("CAS support is not available with Silverlight applications.")]
public enum SecurityPermissionFlag
[<System.Flags>]
[<System.Obsolete("Code Access Security is not supported or honored by the runtime.", DiagnosticId="SYSLIB0003", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
type SecurityPermissionFlag =
[<System.Flags>]
type SecurityPermissionFlag =
[<System.Flags>]
[<System.Serializable>]
type SecurityPermissionFlag =
[<System.Flags>]
[<System.Serializable>]
[<System.Runtime.InteropServices.ComVisible(true)>]
type SecurityPermissionFlag =
[<System.Flags>]
[<System.Serializable>]
[<System.Runtime.InteropServices.ComVisible(true)>]
[<System.Obsolete("CAS support is not available with Silverlight applications.")>]
type SecurityPermissionFlag =
Public Enum SecurityPermissionFlag
- 继承
- 属性
字段
AllFlags | 16383 | 权限的无限制状态。 |
Assertion | 1 | 断言此代码的所有调用方均有该操作所需的权限的能力。 |
BindingRedirects | 8192 | 在应用程序配置文件中执行显式绑定重定向所需的权限。 这包括对已统一的 .NET 程序集以及 .NET 外的其他程序集的重定向。 |
ControlAppDomain | 1024 | 能够创建和操控 AppDomain。 |
ControlDomainPolicy | 256 | 能够指定域策略。 |
ControlEvidence | 32 | 能够提供证据,包括能够更改公共语言运行时所提供的证据。 这是一种功能强大的权限,只应授予给高度受信任的代码。 |
ControlPolicy | 64 | 能够查看并修改策略。 这是一种功能强大的权限,只应授予给高度受信任的代码。 |
ControlPrincipal | 512 | 能够操控用户对象。 |
ControlThread | 16 | 能够在线程上使用某些高级操作。 |
Execution | 8 | 使代码运行的权限。 如果没有此权限,则托管代码不会执行。 与堆栈修饰符(如 Deny()、Assert() 和 PermitOnly())一起动态使用时,此标志将不起作用。 |
Infrastructure | 4096 | 用于将代码插入公共语言运行时结构的权限,如添加 Remoting Context Sink、Envoy Sink 和 Dynamic Sink。 |
NoFlags | 0 | 无安全性访问。 |
RemotingConfiguration | 2048 | 用于配置远程类型和信道的权限。 |
SerializationFormatter | 128 | 能够提供序列化服务。 由序列化格式化程序使用。 |
SkipVerification | 4 | 能够跳过此程序集内对代码的验证。 如果授予此权限,则可以运行无法验证的代码。 这是一种功能强大的权限,只应授予给高度受信任的代码。 与堆栈修饰符(如 Deny()、Assert() 和 PermitOnly())一起动态使用时,此标志将不起作用。 |
UnmanagedCode | 2 | 能够调用非托管代码。 由于非托管代码可能会绕过其他权限,所以这种权限非常危险,仅应授予给高度受信任的代码。 它可用于使用 PInvoke 或使用 COM 互操作调用本机代码的应用程序。 |
示例
以下示例演示如何使用 SecurityPermissionFlag 枚举来拒绝和要求安全权限:
// This sample demonstrates the use of the SecurityPermissionAttribute.
using namespace System;
using namespace System::Security::Permissions;
using namespace System::Security;
class MyClass
{
public:
static void PermissionDemo()
{
try
{
DenySecurityPermissions();
DenyAllSecurityPermissions();
DoNotDenySecurityPermissions();
}
catch ( Exception^ e )
{
Console::WriteLine( e->Message );
}
}
// This method demonstrates the use of the SecurityPermissionAttribute to deny individual security permissions.
// Set the Assertion property.
[SecurityPermissionAttribute(SecurityAction::Deny,Assertion=true)]
// Set the ControlAppDomain property.
[SecurityPermissionAttribute(SecurityAction::Deny,ControlAppDomain=true)]
// Set the ControlDomainPolicy property.
[SecurityPermissionAttribute(SecurityAction::Deny,ControlDomainPolicy=true)]
[SecurityPermissionAttribute(SecurityAction::Deny,ControlEvidence=true)]
// Set the ControlEvidence property.
[SecurityPermissionAttribute(SecurityAction::Deny,ControlPolicy=true)]
// Set the ControlPolicy property.
[SecurityPermissionAttribute(SecurityAction::Deny,ControlPrincipal=true)]
// Set the ControlPrincipal property.
// Set the ControlThread property.
[SecurityPermissionAttribute(SecurityAction::Deny,ControlThread=true)]
// Set the Execution property.
[SecurityPermissionAttribute(SecurityAction::Deny,Execution=true)]
// Set the Flags property.
[SecurityPermissionAttribute(SecurityAction::Deny,Flags=SecurityPermissionFlag::NoFlags)]
// Set the Infrastructure property.
[SecurityPermissionAttribute(SecurityAction::Deny,Infrastructure=true)]
// Set the RemotingConfiguration property.
[SecurityPermissionAttribute(SecurityAction::Deny,RemotingConfiguration=true)]
// Set the SerializationFormatter property.
[SecurityPermissionAttribute(SecurityAction::Deny,SerializationFormatter=true)]
// Set the SkipVerification property.
[SecurityPermissionAttribute(SecurityAction::Deny,SkipVerification=true)]
// Set the UnmanagedCode property.
[SecurityPermissionAttribute(SecurityAction::Deny,UnmanagedCode=true)]
static void DenySecurityPermissions()
{
Console::WriteLine( "Executing DenySecurityPermissions." );
Console::WriteLine( "Denied all permissions individually." );
TestSecurityPermissions();
}
// This method demonstrates the use of SecurityPermissionFlag::AllFlags to deny all security permissions.
[SecurityPermissionAttribute(SecurityAction::Deny,Flags=SecurityPermissionFlag::AllFlags)]
static void DenyAllSecurityPermissions()
{
Console::WriteLine( "\nExecuting DenyAllSecurityPermissions." );
Console::WriteLine( "Denied all permissions using SecurityPermissionFlag::AllFlags." );
TestSecurityPermissions();
}
// This method demonstrates the effect of not denying security permissions.
static void DoNotDenySecurityPermissions()
{
Console::WriteLine( "\nExecuting DoNotDenySecurityPermissions." );
Console::WriteLine( "No permissions have been denied." );
DemandSecurityPermissions();
}
static void TestSecurityPermissions()
{
Console::WriteLine( "\nExecuting TestSecurityPermissions.\n" );
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::Assertion );
Console::WriteLine( "Demanding SecurityPermissionFlag::Assertion" );
// This demand should cause an exception.
sp->Demand();
// The TestFailed method is called if an exception is not thrown.
TestFailed();
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::Assertion failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlAppDomain );
Console::WriteLine( "Demanding SecurityPermissionFlag::ControlAppDomain" );
sp->Demand();
TestFailed();
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::ControlAppDomain failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlDomainPolicy );
Console::WriteLine( "Demanding SecurityPermissionFlag::ControlDomainPolicy" );
sp->Demand();
TestFailed();
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::ControlDomainPolicy failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlEvidence );
Console::WriteLine( "Demanding SecurityPermissionFlag::ControlEvidence" );
sp->Demand();
TestFailed();
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::ControlEvidence failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlPolicy );
Console::WriteLine( "Demanding SecurityPermissionFlag::ControlPolicy" );
sp->Demand();
TestFailed();
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::ControlPolicy failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlPrincipal );
Console::WriteLine( "Demanding SecurityPermissionFlag::ControlPrincipal" );
sp->Demand();
TestFailed();
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::ControlPrincipal failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlThread );
Console::WriteLine( "Demanding SecurityPermissionFlag::ControlThread" );
sp->Demand();
TestFailed();
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::ControlThread failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::Execution );
Console::WriteLine( "Demanding SecurityPermissionFlag::Execution" );
sp->Demand();
TestFailed();
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::Execution failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::Infrastructure );
Console::WriteLine( "Demanding SecurityPermissionFlag::Infrastructure" );
sp->Demand();
TestFailed();
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::Infrastructure failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::RemotingConfiguration );
Console::WriteLine( "Demanding SecurityPermissionFlag::RemotingConfiguration" );
sp->Demand();
TestFailed();
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::RemotingConfiguration failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::SerializationFormatter );
Console::WriteLine( "Demanding SecurityPermissionFlag::SerializationFormatter" );
sp->Demand();
TestFailed();
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::SerializationFormatter failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::SkipVerification );
Console::WriteLine( "Demanding SecurityPermissionFlag::SkipVerification" );
sp->Demand();
TestFailed();
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::SkipVerification failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::UnmanagedCode );
Console::WriteLine( "Demanding SecurityPermissionFlag::UnmanagedCode" );
// This demand should cause an exception.
sp->Demand();
// The TestFailed method is called if an exception is not thrown.
TestFailed();
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::UnmanagedCode failed: {0}", e->Message );
}
}
static void TestFailed()
{
Console::WriteLine( "In TestFailed method." );
Console::WriteLine( "Throwing an exception." );
throw gcnew Exception;
}
static void DemandSecurityPermissions()
{
Console::WriteLine( "\nExecuting DemandSecurityPermissions.\n" );
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::Assertion );
Console::WriteLine( "Demanding SecurityPermissionFlag::Assertion" );
sp->Demand();
Console::WriteLine( "Demand for SecurityPermissionFlag::Assertion succeeded." );
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::Assertion failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlAppDomain );
Console::WriteLine( "Demanding SecurityPermissionFlag::ControlAppDomain" );
sp->Demand();
Console::WriteLine( "Demand for SecurityPermissionFlag::ControlAppDomain succeeded." );
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::ControlAppDomain failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlDomainPolicy );
Console::WriteLine( "Demanding SecurityPermissionFlag::ControlDomainPolicy" );
sp->Demand();
Console::WriteLine( "Demand for SecurityPermissionFlag::ControlDomainPolicy succeeded." );
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::ControlDomainPolicy failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlEvidence );
Console::WriteLine( "Demanding SecurityPermissionFlag::ControlEvidence" );
sp->Demand();
Console::WriteLine( "Demand for SecurityPermissionFlag::ControlEvidence succeeded." );
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::ControlEvidence failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlPolicy );
Console::WriteLine( "Demanding SecurityPermissionFlag::ControlPolicy" );
sp->Demand();
Console::WriteLine( "Demand for SecurityPermissionFlag::ControlPolicy succeeded." );
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::ControlPolicy failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlPrincipal );
Console::WriteLine( "Demanding SecurityPermissionFlag::ControlPrincipal" );
sp->Demand();
Console::WriteLine( "Demand for SecurityPermissionFlag::ControlPrincipal succeeded." );
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::ControlPrincipal failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlThread );
Console::WriteLine( "Demanding SecurityPermissionFlag::ControlThread" );
sp->Demand();
Console::WriteLine( "Demand for SecurityPermissionFlag::ControlThread succeeded." );
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::ControlThread failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::Execution );
Console::WriteLine( "Demanding SecurityPermissionFlag::Execution" );
sp->Demand();
Console::WriteLine( "Demand for SecurityPermissionFlag::Execution succeeded." );
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::Execution failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::Infrastructure );
Console::WriteLine( "Demanding SecurityPermissionFlag::Infrastructure" );
sp->Demand();
Console::WriteLine( "Demand for SecurityPermissionFlag::Infrastructure succeeded." );
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::Infrastructure failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::RemotingConfiguration );
Console::WriteLine( "Demanding SecurityPermissionFlag::RemotingConfiguration" );
sp->Demand();
Console::WriteLine( "Demand for SecurityPermissionFlag::RemotingConfiguration succeeded." );
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::RemotingConfiguration failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::SerializationFormatter );
Console::WriteLine( "Demanding SecurityPermissionFlag::SerializationFormatter" );
sp->Demand();
Console::WriteLine( "Demand for SecurityPermissionFlag::SerializationFormatter succeeded." );
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::SerializationFormatter failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::SkipVerification );
Console::WriteLine( "Demanding SecurityPermissionFlag::SkipVerification" );
sp->Demand();
Console::WriteLine( "Demand for SecurityPermissionFlag::SkipVerification succeeded." );
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::SkipVerification failed: {0}", e->Message );
}
try
{
SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::UnmanagedCode );
Console::WriteLine( "Demanding SecurityPermissionFlag::UnmanagedCode" );
sp->Demand();
Console::WriteLine( "Demand for SecurityPermissionFlag::UnmanagedCode succeeded." );
}
catch ( Exception^ e )
{
Console::WriteLine( "Demand for SecurityPermissionFlag::UnmanagedCode failed: {0}", e->Message );
}
}
};
int main()
{
MyClass::PermissionDemo();
}
// This sample demonstrates the use of the SecurityPermissionAttribute.
using System;
using System.Security.Permissions;
using System.Security;
class MyClass
{
public static void PermissionDemo()
{
try
{
DenySecurityPermissions();
DenyAllSecurityPermissions();
DoNotDenySecurityPermissions();
}
catch (Exception e)
{
Console.WriteLine(e.Message.ToString());
}
}
// This method demonstrates the use of the SecurityPermissionAttribute to deny individual security permissions.
// Set the Assertion property.
[SecurityPermissionAttribute(SecurityAction.Deny, Assertion = true)]
// Set the ControlAppDomain property.
[SecurityPermissionAttribute(SecurityAction.Deny, ControlAppDomain = true)]
// Set the ControlDomainPolicy property.
[SecurityPermissionAttribute(SecurityAction.Deny, ControlDomainPolicy = true)]
// Set the ControlEvidence property.
[SecurityPermissionAttribute(SecurityAction.Deny, ControlEvidence = true)]
// Set the ControlPolicy property.
[SecurityPermissionAttribute(SecurityAction.Deny, ControlPolicy = true)]
// Set the ControlPrincipal property.
[SecurityPermissionAttribute(SecurityAction.Deny, ControlPrincipal = true)]
// Set the ControlThread property.
[SecurityPermissionAttribute(SecurityAction.Deny, ControlThread = true)]
// Set the Execution property.
[SecurityPermissionAttribute(SecurityAction.Deny, Execution = true)]
// Set the Flags property.
[SecurityPermissionAttribute(SecurityAction.Deny, Flags = SecurityPermissionFlag.NoFlags)]
// Set the Infrastructure property.
[SecurityPermissionAttribute(SecurityAction.Deny, Infrastructure = true)]
// Set the RemotingConfiguration property.
[SecurityPermissionAttribute(SecurityAction.Deny, RemotingConfiguration = true)]
// Set the SerializationFormatter property.
[SecurityPermissionAttribute(SecurityAction.Deny, SerializationFormatter = true)]
// Set the SkipVerification property.
[SecurityPermissionAttribute(SecurityAction.Deny, SkipVerification = true)]
// Set the UnmanagedCode property.
[SecurityPermissionAttribute(SecurityAction.Deny, UnmanagedCode = true)]
public static void DenySecurityPermissions()
{
Console.WriteLine("Executing DenySecurityPermissions.");
Console.WriteLine("Denied all permissions individually.");
TestSecurityPermissions();
}
// This method demonstrates the use of SecurityPermissionFlag.AllFlags to deny all security permissions.
[SecurityPermissionAttribute(SecurityAction.Deny, Flags = SecurityPermissionFlag.AllFlags)]
public static void DenyAllSecurityPermissions()
{
Console.WriteLine("\nExecuting DenyAllSecurityPermissions.");
Console.WriteLine("Denied all permissions using SecurityPermissionFlag.AllFlags.");
TestSecurityPermissions();
}
// This method demonstrates the effect of not denying security permissions.
public static void DoNotDenySecurityPermissions()
{
Console.WriteLine("\nExecuting DoNotDenySecurityPermissions.");
Console.WriteLine("No permissions have been denied.");
DemandSecurityPermissions();
}
public static void TestSecurityPermissions()
{
Console.WriteLine("\nExecuting TestSecurityPermissions.\n");
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.Assertion);
Console.WriteLine("Demanding SecurityPermissionFlag.Assertion");
// This demand should cause an exception.
sp.Demand();
// The TestFailed method is called if an exception is not thrown.
TestFailed();
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.Assertion failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.ControlAppDomain);
Console.WriteLine("Demanding SecurityPermissionFlag.ControlAppDomain");
sp.Demand();
TestFailed();
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.ControlAppDomain failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.ControlDomainPolicy);
Console.WriteLine("Demanding SecurityPermissionFlag.ControlDomainPolicy");
sp.Demand();
TestFailed();
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.ControlDomainPolicy failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.ControlEvidence);
Console.WriteLine("Demanding SecurityPermissionFlag.ControlEvidence");
sp.Demand();
TestFailed();
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.ControlEvidence failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.ControlPolicy);
Console.WriteLine("Demanding SecurityPermissionFlag.ControlPolicy");
sp.Demand();
TestFailed();
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.ControlPolicy failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.ControlPrincipal);
Console.WriteLine("Demanding SecurityPermissionFlag.ControlPrincipal");
sp.Demand();
TestFailed();
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.ControlPrincipal failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.ControlThread);
Console.WriteLine("Demanding SecurityPermissionFlag.ControlThread");
sp.Demand();
TestFailed();
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.ControlThread failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.Execution);
Console.WriteLine("Demanding SecurityPermissionFlag.Execution");
sp.Demand();
TestFailed();
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.Execution failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.Infrastructure);
Console.WriteLine("Demanding SecurityPermissionFlag.Infrastructure");
sp.Demand();
TestFailed();
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.Infrastructure failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.RemotingConfiguration);
Console.WriteLine("Demanding SecurityPermissionFlag.RemotingConfiguration");
sp.Demand();
TestFailed();
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.RemotingConfiguration failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.SerializationFormatter);
Console.WriteLine("Demanding SecurityPermissionFlag.SerializationFormatter");
sp.Demand();
TestFailed();
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.SerializationFormatter failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.SkipVerification);
Console.WriteLine("Demanding SecurityPermissionFlag.SkipVerification");
sp.Demand();
TestFailed();
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.SkipVerification failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.UnmanagedCode);
Console.WriteLine("Demanding SecurityPermissionFlag.UnmanagedCode");
// This demand should cause an exception.
sp.Demand();
// The TestFailed method is called if an exception is not thrown.
TestFailed();
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.UnmanagedCode failed: " + e.Message);
}
}
public static void TestFailed()
{
Console.WriteLine("In TestFailed method.");
Console.WriteLine("Throwing an exception.");
throw new Exception();
}
public static void DemandSecurityPermissions()
{
Console.WriteLine("\nExecuting DemandSecurityPermissions.\n");
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.Assertion);
Console.WriteLine("Demanding SecurityPermissionFlag.Assertion");
sp.Demand();
Console.WriteLine("Demand for SecurityPermissionFlag.Assertion succeeded.");
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.Assertion failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.ControlAppDomain);
Console.WriteLine("Demanding SecurityPermissionFlag.ControlAppDomain");
sp.Demand();
Console.WriteLine("Demand for SecurityPermissionFlag.ControlAppDomain succeeded.");
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.ControlAppDomain failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.ControlDomainPolicy);
Console.WriteLine("Demanding SecurityPermissionFlag.ControlDomainPolicy");
sp.Demand();
Console.WriteLine("Demand for SecurityPermissionFlag.ControlDomainPolicy succeeded.");
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.ControlDomainPolicy failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.ControlEvidence);
Console.WriteLine("Demanding SecurityPermissionFlag.ControlEvidence");
sp.Demand();
Console.WriteLine("Demand for SecurityPermissionFlag.ControlEvidence succeeded.");
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.ControlEvidence failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.ControlPolicy);
Console.WriteLine("Demanding SecurityPermissionFlag.ControlPolicy");
sp.Demand();
Console.WriteLine("Demand for SecurityPermissionFlag.ControlPolicy succeeded.");
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.ControlPolicy failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.ControlPrincipal);
Console.WriteLine("Demanding SecurityPermissionFlag.ControlPrincipal");
sp.Demand();
Console.WriteLine("Demand for SecurityPermissionFlag.ControlPrincipal succeeded.");
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.ControlPrincipal failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.ControlThread);
Console.WriteLine("Demanding SecurityPermissionFlag.ControlThread");
sp.Demand();
Console.WriteLine("Demand for SecurityPermissionFlag.ControlThread succeeded.");
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.ControlThread failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.Execution);
Console.WriteLine("Demanding SecurityPermissionFlag.Execution");
sp.Demand();
Console.WriteLine("Demand for SecurityPermissionFlag.Execution succeeded.");
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.Execution failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.Infrastructure);
Console.WriteLine("Demanding SecurityPermissionFlag.Infrastructure");
sp.Demand();
Console.WriteLine("Demand for SecurityPermissionFlag.Infrastructure succeeded.");
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.Infrastructure failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.RemotingConfiguration);
Console.WriteLine("Demanding SecurityPermissionFlag.RemotingConfiguration");
sp.Demand();
Console.WriteLine("Demand for SecurityPermissionFlag.RemotingConfiguration succeeded.");
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.RemotingConfiguration failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.SerializationFormatter);
Console.WriteLine("Demanding SecurityPermissionFlag.SerializationFormatter");
sp.Demand();
Console.WriteLine("Demand for SecurityPermissionFlag.SerializationFormatter succeeded.");
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.SerializationFormatter failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.SkipVerification);
Console.WriteLine("Demanding SecurityPermissionFlag.SkipVerification");
sp.Demand();
Console.WriteLine("Demand for SecurityPermissionFlag.SkipVerification succeeded.");
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.SkipVerification failed: " + e.Message);
}
try
{
SecurityPermission sp =
new SecurityPermission(SecurityPermissionFlag.UnmanagedCode);
Console.WriteLine("Demanding SecurityPermissionFlag.UnmanagedCode");
sp.Demand();
Console.WriteLine("Demand for SecurityPermissionFlag.UnmanagedCode succeeded.");
}
catch (Exception e)
{
Console.WriteLine("Demand for SecurityPermissionFlag.UnmanagedCode failed: " + e.Message);
}
}
static void Main(string[] args)
{
PermissionDemo();
}
}
' This sample demonstrates the use of the SecurityPermissionAttribute.
Imports System.Security.Permissions
Imports System.Security
Class [MyClass]
Public Shared Sub PermissionDemo()
Try
DenySecurityPermissions()
DenyAllSecurityPermissions()
DoNotDenySecurityPermissions()
Catch e As Exception
Console.WriteLine(e.Message.ToString())
End Try
End Sub
' This method demonstrates the use of the SecurityPermissionAttribute to deny individual security permissions.
' Set the Assertion,UnmanagedCode, ControlAppDomain, ControlDomainPolicy, ontrolEvidence,
' ControlPolicy, ControlPrincipal, ControlThread, Execution, Flags, Infrastructure,
' RemotingConfiguration, SerializationFormatter, and SkipVerification properties.
<SecurityPermissionAttribute(SecurityAction.Deny, Assertion:=True), _
SecurityPermissionAttribute(SecurityAction.Deny, ControlAppDomain:=True), _
SecurityPermissionAttribute(SecurityAction.Deny, ControlDomainPolicy:=True), _
SecurityPermissionAttribute(SecurityAction.Deny, ControlEvidence:=True), _
SecurityPermissionAttribute(SecurityAction.Deny, ControlPolicy:=True), _
SecurityPermissionAttribute(SecurityAction.Deny, ControlPrincipal:=True), _
SecurityPermissionAttribute(SecurityAction.Deny, ControlThread:=True), _
SecurityPermissionAttribute(SecurityAction.Deny, Execution:=True), _
SecurityPermissionAttribute(SecurityAction.Deny, Flags:=SecurityPermissionFlag.NoFlags), _
SecurityPermissionAttribute(SecurityAction.Deny, Infrastructure:=True), _
SecurityPermissionAttribute(SecurityAction.Deny, RemotingConfiguration:=True), _
SecurityPermissionAttribute(SecurityAction.Deny, SerializationFormatter:=True), _
SecurityPermissionAttribute(SecurityAction.Deny, SkipVerification:=True), _
SecurityPermissionAttribute(SecurityAction.Deny, UnmanagedCode:=True)> _
Public Shared Sub DenySecurityPermissions()
Console.WriteLine("Executing DenySecurityPermissions.")
Console.WriteLine("Denied all permissions individually.")
TestSecurityPermissions()
End Sub
' This method demonstrates the use of SecurityPermissionFlag.AllFlags to deny all security permissions.
<SecurityPermissionAttribute(SecurityAction.Deny, Flags:=SecurityPermissionFlag.AllFlags)> _
Public Shared Sub DenyAllSecurityPermissions()
Console.WriteLine(ControlChars.Lf & "Executing DenyAllSecurityPermissions.")
Console.WriteLine("Denied all permissions using SecurityPermissionFlag.AllFlags.")
TestSecurityPermissions()
End Sub
' This method demonstrates the effect of not denying security permissions.
Public Shared Sub DoNotDenySecurityPermissions()
Console.WriteLine(ControlChars.Lf & "Executing DoNotDenySecurityPermissions.")
Console.WriteLine("No permissions have been denied.")
DemandSecurityPermissions()
End Sub
Public Shared Sub TestSecurityPermissions()
Console.WriteLine(ControlChars.Lf & "Executing TestSecurityPermissions." & ControlChars.Lf)
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.Assertion)
Console.WriteLine("Demanding SecurityPermissionFlag.Assertion")
' This demand should cause an exception.
sp.Demand()
' The TestFailed method is called if an exception is not thrown.
TestFailed()
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.Assertion failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlAppDomain)
Console.WriteLine("Demanding SecurityPermissionFlag.ControlAppDomain")
sp.Demand()
TestFailed()
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.ControlAppDomain failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlDomainPolicy)
Console.WriteLine("Demanding SecurityPermissionFlag.ControlDomainPolicy")
sp.Demand()
TestFailed()
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.ControlDomainPolicy failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlEvidence)
Console.WriteLine("Demanding SecurityPermissionFlag.ControlEvidence")
sp.Demand()
TestFailed()
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.ControlEvidence failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlPolicy)
Console.WriteLine("Demanding SecurityPermissionFlag.ControlPolicy")
sp.Demand()
TestFailed()
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.ControlPolicy failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlPrincipal)
Console.WriteLine("Demanding SecurityPermissionFlag.ControlPrincipal")
sp.Demand()
TestFailed()
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.ControlPrincipal failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlThread)
Console.WriteLine("Demanding SecurityPermissionFlag.ControlThread")
sp.Demand()
TestFailed()
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.ControlThread failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.Execution)
Console.WriteLine("Demanding SecurityPermissionFlag.Execution")
sp.Demand()
TestFailed()
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.Execution failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.Infrastructure)
Console.WriteLine("Demanding SecurityPermissionFlag.Infrastructure")
sp.Demand()
TestFailed()
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.Infrastructure failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.RemotingConfiguration)
Console.WriteLine("Demanding SecurityPermissionFlag.RemotingConfiguration")
sp.Demand()
TestFailed()
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.RemotingConfiguration failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.SerializationFormatter)
Console.WriteLine("Demanding SecurityPermissionFlag.SerializationFormatter")
sp.Demand()
TestFailed()
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.SerializationFormatter failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.SkipVerification)
Console.WriteLine("Demanding SecurityPermissionFlag.SkipVerification")
sp.Demand()
TestFailed()
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.SkipVerification failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.UnmanagedCode)
Console.WriteLine("Demanding SecurityPermissionFlag.UnmanagedCode")
' This demand should cause an exception.
sp.Demand()
' The TestFailed method is called if an exception is not thrown.
TestFailed()
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.UnmanagedCode failed: " & e.Message))
End Try
End Sub
Public Shared Sub TestFailed()
Console.WriteLine("In TestFailed method.")
Console.WriteLine("Throwing an exception.")
Throw New Exception()
End Sub
Public Shared Sub DemandSecurityPermissions()
Console.WriteLine(ControlChars.Lf & "Executing DemandSecurityPermissions." & ControlChars.Lf)
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.Assertion)
Console.WriteLine("Demanding SecurityPermissionFlag.Assertion")
sp.Demand()
Console.WriteLine("Demand for SecurityPermissionFlag.Assertion succeeded.")
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.Assertion failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlAppDomain)
Console.WriteLine("Demanding SecurityPermissionFlag.ControlAppDomain")
sp.Demand()
Console.WriteLine("Demand for SecurityPermissionFlag.ControlAppDomain succeeded.")
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.ControlAppDomain failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlDomainPolicy)
Console.WriteLine("Demanding SecurityPermissionFlag.ControlDomainPolicy")
sp.Demand()
Console.WriteLine("Demand for SecurityPermissionFlag.ControlDomainPolicy succeeded.")
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.ControlDomainPolicy failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlEvidence)
Console.WriteLine("Demanding SecurityPermissionFlag.ControlEvidence")
sp.Demand()
Console.WriteLine("Demand for SecurityPermissionFlag.ControlEvidence succeeded.")
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.ControlEvidence failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlPolicy)
Console.WriteLine("Demanding SecurityPermissionFlag.ControlPolicy")
sp.Demand()
Console.WriteLine("Demand for SecurityPermissionFlag.ControlPolicy succeeded.")
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.ControlPolicy failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlPrincipal)
Console.WriteLine("Demanding SecurityPermissionFlag.ControlPrincipal")
sp.Demand()
Console.WriteLine("Demand for SecurityPermissionFlag.ControlPrincipal succeeded.")
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.ControlPrincipal failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlThread)
Console.WriteLine("Demanding SecurityPermissionFlag.ControlThread")
sp.Demand()
Console.WriteLine("Demand for SecurityPermissionFlag.ControlThread succeeded.")
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.ControlThread failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.Execution)
Console.WriteLine("Demanding SecurityPermissionFlag.Execution")
sp.Demand()
Console.WriteLine("Demand for SecurityPermissionFlag.Execution succeeded.")
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.Execution failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.Infrastructure)
Console.WriteLine("Demanding SecurityPermissionFlag.Infrastructure")
sp.Demand()
Console.WriteLine("Demand for SecurityPermissionFlag.Infrastructure succeeded.")
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.Infrastructure failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.RemotingConfiguration)
Console.WriteLine("Demanding SecurityPermissionFlag.RemotingConfiguration")
sp.Demand()
Console.WriteLine("Demand for SecurityPermissionFlag.RemotingConfiguration succeeded.")
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.RemotingConfiguration failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.SerializationFormatter)
Console.WriteLine("Demanding SecurityPermissionFlag.SerializationFormatter")
sp.Demand()
Console.WriteLine("Demand for SecurityPermissionFlag.SerializationFormatter succeeded.")
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.SerializationFormatter failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.SkipVerification)
Console.WriteLine("Demanding SecurityPermissionFlag.SkipVerification")
sp.Demand()
Console.WriteLine("Demand for SecurityPermissionFlag.SkipVerification succeeded.")
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.SkipVerification failed: " & e.Message))
End Try
Try
Dim sp As New SecurityPermission(SecurityPermissionFlag.UnmanagedCode)
Console.WriteLine("Demanding SecurityPermissionFlag.UnmanagedCode")
sp.Demand()
Console.WriteLine("Demand for SecurityPermissionFlag.UnmanagedCode succeeded.")
Catch e As Exception
Console.WriteLine(("Demand for SecurityPermissionFlag.UnmanagedCode failed: " & e.Message))
End Try
End Sub
Overloads Shared Sub Main(ByVal args() As String)
PermissionDemo()
End Sub
End Class
注解
注意
代码访问安全性 (CAS) 已在所有版本的 .NET Framework 和 .NET 中弃用。 使用与 CAS 相关的 API 时,最新版本的 .NET 不遵循 CAS 注释并生成错误。 开发人员应寻求实现安全任务的替代方法。
此枚举由 SecurityPermission.
注意
其中许多标志非常强大,只应授予高度受信任的代码。