PermissionSetAttribute Sınıf
Tanım
Önemli
Bazı bilgiler ürünün ön sürümüyle ilgilidir ve sürüm öncesinde önemli değişiklikler yapılmış olabilir. Burada verilen bilgilerle ilgili olarak Microsoft açık veya zımni hiçbir garanti vermez.
Dikkat
Code Access Security is not supported or honored by the runtime.
Bildirim temelli güvenlik kullanılarak koda uygulanması için güvenlik PermissionSet eylemlerine izin verir. Bu sınıf devralınamaz.
public ref class PermissionSetAttribute sealed : System::Security::Permissions::CodeAccessSecurityAttribute[System.AttributeUsage(System.AttributeTargets.Assembly | System.AttributeTargets.Class | System.AttributeTargets.Constructor | System.AttributeTargets.Method | System.AttributeTargets.Struct, AllowMultiple=true, Inherited=false)]
public sealed class PermissionSetAttribute : System.Security.Permissions.CodeAccessSecurityAttribute[System.AttributeUsage(System.AttributeTargets.Assembly | System.AttributeTargets.Class | System.AttributeTargets.Constructor | System.AttributeTargets.Method | System.AttributeTargets.Struct, AllowMultiple=true, Inherited=false)]
[System.Obsolete("Code Access Security is not supported or honored by the runtime.", DiagnosticId="SYSLIB0003", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public sealed class PermissionSetAttribute : System.Security.Permissions.CodeAccessSecurityAttribute[System.AttributeUsage(System.AttributeTargets.Assembly | System.AttributeTargets.Class | System.AttributeTargets.Constructor | System.AttributeTargets.Method | System.AttributeTargets.Struct, AllowMultiple=true, Inherited=false)]
[System.Serializable]
public sealed class PermissionSetAttribute : System.Security.Permissions.CodeAccessSecurityAttribute[System.AttributeUsage(System.AttributeTargets.Assembly | System.AttributeTargets.Class | System.AttributeTargets.Constructor | System.AttributeTargets.Method | System.AttributeTargets.Struct, AllowMultiple=true, Inherited=false)]
[System.Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
public sealed class PermissionSetAttribute : System.Security.Permissions.CodeAccessSecurityAttribute[<System.AttributeUsage(System.AttributeTargets.Assembly | System.AttributeTargets.Class | System.AttributeTargets.Constructor | System.AttributeTargets.Method | System.AttributeTargets.Struct, AllowMultiple=true, Inherited=false)>]
type PermissionSetAttribute = class
inherit CodeAccessSecurityAttribute[<System.AttributeUsage(System.AttributeTargets.Assembly | System.AttributeTargets.Class | System.AttributeTargets.Constructor | System.AttributeTargets.Method | System.AttributeTargets.Struct, AllowMultiple=true, Inherited=false)>]
[<System.Obsolete("Code Access Security is not supported or honored by the runtime.", DiagnosticId="SYSLIB0003", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
type PermissionSetAttribute = class
inherit CodeAccessSecurityAttribute[<System.AttributeUsage(System.AttributeTargets.Assembly | System.AttributeTargets.Class | System.AttributeTargets.Constructor | System.AttributeTargets.Method | System.AttributeTargets.Struct, AllowMultiple=true, Inherited=false)>]
[<System.Serializable>]
type PermissionSetAttribute = class
inherit CodeAccessSecurityAttribute[<System.AttributeUsage(System.AttributeTargets.Assembly | System.AttributeTargets.Class | System.AttributeTargets.Constructor | System.AttributeTargets.Method | System.AttributeTargets.Struct, AllowMultiple=true, Inherited=false)>]
[<System.Serializable>]
[<System.Runtime.InteropServices.ComVisible(true)>]
type PermissionSetAttribute = class
inherit CodeAccessSecurityAttributePublic NotInheritable Class PermissionSetAttribute
Inherits CodeAccessSecurityAttribute- Devralma
- Öznitelikler
Örnekler
Aşağıdaki örnekte Sınıfın kullanımı gösterilmektedir PermissionSetAttribute .
// The #define statement for BuildFile must be included the first time this sample is run.
// This causes the sample to create a file named 'LocalIntranet.xml' in the c:\temp folder.
// After creating the LocalInternet.xml file, comment out the #define statement and rerun
// the sample to demonstrate the use of the permission set attribute.
#define BuildFile
using System;
using System.Security;
using System.Security.Permissions;
using System.Security.Policy;
using System.Collections;
using System.IO;
namespace PermissionSetAttributeDemo
{
class Class1
{
[STAThread]
static void Main(string[] args)
{
// Run this sample with the BuildFile symbol defined to create the required file, then
// comment out the #define statement to demonstrate the use of the attribute.
#if(BuildFile)
using (StreamWriter sw = new StreamWriter("c:\\temp\\LocalIntranet.xml"))
{
sw.WriteLine(GetNamedPermissionSet("LocalIntranet"));
sw.Close();
}
#endif
#if(!BuildFile)
ReadFile1();
ReadFile2();
ReadFile3();
Console.WriteLine("Press the Enter key to exit.");
Console.Read();
#endif
}
#if(!BuildFile)
// Read the LocalIntranet.xml file.
static void ReadFile1()
{
try
{
Console.WriteLine("Attempting to read a file using the FullTrust permission set.");
using (StreamReader sr = new StreamReader("c:\\temp\\LocalIntranet.xml"))
{
string permissionSet = sr.ReadToEnd();
sr.Close();
}
Console.WriteLine("The file was successfully read.");
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}
[PermissionSetAttribute(SecurityAction.PermitOnly, File = "c:\\temp\\LocalIntranet.xml")]
// Read the file with the specified security action on the file path.
static void ReadFile2()
{
try
{
Console.WriteLine("Attempting to read a file using the LocalIntranet permission set.");
using (StreamReader sr = new StreamReader("c:\\temp\\LocalIntranet.xml"))
{
string permissionSet = sr.ReadToEnd();
sr.Close();
}
Console.WriteLine("The file was successfully read.");
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}
[PermissionSetAttribute(SecurityAction.PermitOnly, Name = "LocalIntranet")]
// Read the file with the specified security action on the permission set.
static void ReadFile3()
{
try
{
Console.WriteLine("\nSecond attempt to read a file using " +
"the LocalIntranet permission set.");
using (StreamReader sr = new StreamReader("c:\\temp\\LocalIntranet.xml"))
{
string permissionSet = sr.ReadToEnd();
sr.Close();
}
Console.WriteLine("The file was successfully read.");
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}
#endif
// Locate the named permission set at the Machine level and return it as a string value.
private static string GetNamedPermissionSet(string name)
{
IEnumerator policyEnumerator = SecurityManager.PolicyHierarchy();
// Move through the policy levels to the Machine Level.
while(policyEnumerator.MoveNext())
{
PolicyLevel currentLevel = (PolicyLevel)policyEnumerator.Current;
if(currentLevel.Label == "Machine")
{
// Iterate through the permission sets at the Machine level.
IList namedPermissions = currentLevel.NamedPermissionSets;
IEnumerator namedPermission = namedPermissions.GetEnumerator();
// Locate the named permission set.
while(namedPermission.MoveNext())
{
if(((NamedPermissionSet)namedPermission.Current).Name == name)
{
return ((NamedPermissionSet)namedPermission.Current).ToString();
}
}
}
}
return null;
}
}
}
//
// This sample produces the following output:
//
// File created at c:\temp\LocalIntranet.xml
// Uncomment the BuildFile=false line and run the sample again.
//
// This sample completed successfully; press Exit to continue.
//
//
// The second time the sample is ran (without DEBUG flag):
//
// Attempting to read a file using the FullTrust permission set.
// The file was successfully read.
// Attempting to read a file using the LocalIntranet permission set.
// Request for the permission of type
// System.Security.Permissions.FileIOPermission, mscorlib, Version=1.0.5000.0,
// Culture=neutral, PublicKeyToken=b77a5c561934e089 failed.
//
// Second attempt to read a file using the LocalIntranet permission set.
// Request for the permission of type System.Security.Permissions.FileIOPermission,
// mscorlib, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
// failed.
// Press the Enter key to exit.
' The #Const BuildFile = True statement must be active the first time this
' sample is run. This causes the sample to create a file named
' 'LocalIntranet.xml' in the c:\temp folder. After creating the
' LocalInternet.xml file, comment out the #Const BUILDFILE = True statement,
' uncomment the #Const BUILDFILE = False statement, and rerun the sample to
' demonstrate the use of the permission set attribute.
Imports System.Security
Imports System.Security.Permissions
Imports System.Security.Policy
Imports System.Collections
Imports System.IO
#Const BUILDFILE = True
'#Const BUILDFILE = False
Public Class Form1
Inherits System.Windows.Forms.Form
' Event handler for Run button.
<STAThread()> _
Private Sub Button1_Click( _
ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles Button1.Click
tbxOutput.Cursor = Cursors.WaitCursor
tbxOutput.Text = ""
Dim xmlFilePath As String
xmlFilePath = "c:\temp\LocalIntranet.xml"
' Run this sample with the BuildFile symbol defined to create the
' required file, then comment out the /define statement to demonstrate
' the use of the attribute.
#If (BUILDFILE) Then
Dim sw As New StreamWriter(xmlFilePath)
Try
sw.WriteLine(GetNamedPermissionSet("LocalIntranet"))
WriteLine("File created at " + xmlFilePath)
WriteLine("Uncomment the BuildFile=false line and " + _
"run the sample again.")
Finally
sw.Close()
End Try
#End If
#If (Not BUILDFILE) Then
ReadFile1()
ReadFile2()
ReadFile3()
#End If
' Align interface and conclude application.
WriteLine(vbCrLf + "This sample completed successfully;" + _
" press Exit to continue.")
' Reset the cursor.
tbxOutput.Cursor = Cursors.Default
End Sub
#If (Not BUILDFILE) Then
' Read the LocalIntranet.xml file.
Private Sub ReadFile1()
Try
WriteLine("Attempting to read a file using the FullTrust " + _
"permission set.")
Dim sr As New StreamReader("c:\temp\LocalIntranet.xml")
Try
Dim permissionSet As String = sr.ReadToEnd()
Finally
sr.Close()
End Try
WriteLine("The file was successfully read.")
Catch e As Exception
WriteLine(e.Message)
End Try
End Sub
<System.Security.Permissions.PermissionSetAttribute( _
SecurityAction.PermitOnly, _
File:="c:\temp\LocalIntranet.xml")> _
Private Sub ReadFile2()
' Read the file with the specified security action on the file path.
Try
WriteLine("Attempting to read a file using the LocalIntranet " + _
"permission set.")
Dim sr As New StreamReader("c:\temp\LocalIntranet.xml")
Try
Dim permissionSet As String = sr.ReadToEnd()
Finally
sr.Close()
End Try
WriteLine("The file was successfully read.")
Catch e As Exception
WriteLine(e.Message)
End Try
End Sub
<System.Security.Permissions.PermissionSetAttribute( _
SecurityAction.PermitOnly, _
Name:="LocalIntranet")> _
Private Sub ReadFile3()
' Read the file with the specified security action on the
' permission set.
Try
WriteLine("Second attempt to read a file using the " + _
"LocalIntranet permission set.")
Dim sr As New StreamReader("c:\temp\LocalIntranet.xml")
Try
Dim permissionSet As String = sr.ReadToEnd()
Finally
sr.Close()
End Try
WriteLine("The file was successfully read.")
Catch e As Exception
WriteLine(e.Message)
End Try
End Sub
#End If
' Locate the named permission set at the Machine level and return it as
' a string value.
Private Shared Function GetNamedPermissionSet( _
ByVal name As String) As String
Dim policyEnumerator As IEnumerator
policyEnumerator = SecurityManager.PolicyHierarchy()
' Move through the policy levels to the Machine Level.
While policyEnumerator.MoveNext()
Dim currentLevel As PolicyLevel
currentLevel = CType(policyEnumerator.Current, PolicyLevel)
If currentLevel.Label = "Machine" Then
' Iterate through the permission sets at the Machine level.
Dim namedPermissions As IList
namedPermissions = currentLevel.NamedPermissionSets
Dim namedPermission As IEnumerator
namedPermission = namedPermissions.GetEnumerator()
Dim currentPermission As NamedPermissionSet
' Locate the named permission set.
While namedPermission.MoveNext()
currentPermission = CType( _
namedPermission.Current, _
NamedPermissionSet)
If currentPermission.Name.Equals(name) Then
Return currentPermission.ToString()
End If
End While
End If
End While
Return Nothing
End Function
' Write specified message and carriage return to the output textbox.
Private Sub WriteLine(ByVal message As String)
tbxOutput.AppendText(message + vbCrLf)
End Sub
' Event handler for Exit button.
Private Sub Button2_Click( _
ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles Button2.Click
Application.Exit()
End Sub
#Region " Windows Form Designer generated code "
Public Sub New()
MyBase.New()
'This call is required by the Windows Form Designer.
InitializeComponent()
'Add any initialization after the InitializeComponent() call
End Sub
'Form overrides dispose to clean up the component list.
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing Then
If Not (components Is Nothing) Then
components.Dispose()
End If
End If
MyBase.Dispose(disposing)
End Sub
'Required by the Windows Form Designer
Private components As System.ComponentModel.IContainer
'NOTE: The following procedure is required by the Windows Form Designer
'It can be modified using the Windows Form Designer.
'Do not modify it using the code editor.
Friend WithEvents Panel2 As System.Windows.Forms.Panel
Friend WithEvents Panel1 As System.Windows.Forms.Panel
Friend WithEvents Button1 As System.Windows.Forms.Button
Friend WithEvents Button2 As System.Windows.Forms.Button
Friend WithEvents tbxOutput As System.Windows.Forms.RichTextBox
<System.Diagnostics.DebuggerStepThrough()> _
Private Sub InitializeComponent()
Me.Panel2 = New System.Windows.Forms.Panel
Me.Button1 = New System.Windows.Forms.Button
Me.Button2 = New System.Windows.Forms.Button
Me.Panel1 = New System.Windows.Forms.Panel
Me.tbxOutput = New System.Windows.Forms.RichTextBox
Me.Panel2.SuspendLayout()
Me.Panel1.SuspendLayout()
Me.SuspendLayout()
'
'Panel2
'
Me.Panel2.Controls.Add(Me.Button1)
Me.Panel2.Controls.Add(Me.Button2)
Me.Panel2.Dock = System.Windows.Forms.DockStyle.Bottom
Me.Panel2.DockPadding.All = 20
Me.Panel2.Location = New System.Drawing.Point(0, 320)
Me.Panel2.Name = "Panel2"
Me.Panel2.Size = New System.Drawing.Size(616, 64)
Me.Panel2.TabIndex = 1
'
'Button1
'
Me.Button1.Dock = System.Windows.Forms.DockStyle.Right
Me.Button1.Font = New System.Drawing.Font( _
"Microsoft Sans Serif", _
9.0!, _
System.Drawing.FontStyle.Regular, _
System.Drawing.GraphicsUnit.Point, _
CType(0, Byte))
Me.Button1.Location = New System.Drawing.Point(446, 20)
Me.Button1.Name = "Button1"
Me.Button1.Size = New System.Drawing.Size(75, 24)
Me.Button1.TabIndex = 2
Me.Button1.Text = "&Run"
'
'Button2
'
Me.Button2.Dock = System.Windows.Forms.DockStyle.Right
Me.Button2.Font = New System.Drawing.Font( _
"Microsoft Sans Serif", _
9.0!, _
System.Drawing.FontStyle.Regular, _
System.Drawing.GraphicsUnit.Point, _
CType(0, Byte))
Me.Button2.Location = New System.Drawing.Point(521, 20)
Me.Button2.Name = "Button2"
Me.Button2.Size = New System.Drawing.Size(75, 24)
Me.Button2.TabIndex = 3
Me.Button2.Text = "E&xit"
'
'Panel1
'
Me.Panel1.Controls.Add(Me.tbxOutput)
Me.Panel1.Dock = System.Windows.Forms.DockStyle.Fill
Me.Panel1.DockPadding.All = 20
Me.Panel1.Location = New System.Drawing.Point(0, 0)
Me.Panel1.Name = "Panel1"
Me.Panel1.Size = New System.Drawing.Size(616, 320)
Me.Panel1.TabIndex = 2
'
'tbxOutput
'
Me.tbxOutput.AccessibleDescription = _
"Displays output from application."
Me.tbxOutput.AccessibleName = "Output textbox."
Me.tbxOutput.Dock = System.Windows.Forms.DockStyle.Fill
Me.tbxOutput.Location = New System.Drawing.Point(20, 20)
Me.tbxOutput.Name = "tbxOutput"
Me.tbxOutput.Size = New System.Drawing.Size(576, 280)
Me.tbxOutput.TabIndex = 1
Me.tbxOutput.Text = "Click the Run button to run the application."
'
'Form1
'
Me.AutoScaleBaseSize = New System.Drawing.Size(6, 15)
Me.ClientSize = New System.Drawing.Size(616, 384)
Me.Controls.Add(Me.Panel1)
Me.Controls.Add(Me.Panel2)
Me.Name = "Form1"
Me.Text = "PermisstionSetAttribute"
Me.Panel2.ResumeLayout(False)
Me.Panel1.ResumeLayout(False)
Me.ResumeLayout(False)
End Sub
#End Region
End Class
'
' This sample produces the following output:
'
' File created at c:\temp\LocalIntranet.xml
' Uncomment the BuildFile=false line and run the sample again.
'
' This sample completed successfully; press Exit to continue.
'
'
' The second time the sample is ran (without DEBUG flag):
'
' Attempting to read a file using the FullTrust permission set.
' The file was successfully read.
' Attempting to read a file using the LocalIntranet permission set.
' Request for the permission of type
' System.Security.Permissions.FileIOPermission, mscorlib, Version=1.0.5000.0,
' Culture=neutral, PublicKeyToken=b77a5c561934e089 failed.
'
' Second attempt to read a file using the LocalIntranet permission set.
' Request for the permission of type System.Security.Permissions.FileIOPermission,
' mscorlib, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
' failed.
' This sample completed successfully; press Exit to continue.
Açıklamalar
Önemli
Kısmen güvenilen kod artık desteklenmiyor. Bu özniteliğin .NET Core'da hiçbir etkisi yoktur.
PermissionSetAttribute, Fileve XML özellikleri Namebirbirini dışlar; başka bir deyişle, bir izin kümesinin kaynağı aşağıdakilerden yalnızca birine sahip olabilir: adlandırılmış izin kümesi, izin kümesinin XML gösterimini içeren bir dosya veya izin kümesinin XML gösterimini içeren bir dize.
İzin verilen bildirimin kapsamı kullanılana SecurityAction bağlıdır. SecurityAction üzerinde PermissionSet gerçekleştirilen, küme içindeki izinlerin her birinde bu eylemi gerçekleştirmenin eşdeğeridir.
Bir güvenlik özniteliği tarafından bildirilen güvenlik bilgileri, öznitelik hedefinin meta verilerinde depolanır ve sistem tarafından çalışma zamanında erişilir. Güvenlik öznitelikleri yalnızca bildirim temelli güvenlik için kullanılır. Kesinlik temelli güvenlik için ilgili izin sınıfını kullanın.
Oluşturucular
| PermissionSetAttribute(SecurityAction) |
Belirtilen güvenlik eylemiyle sınıfının yeni bir örneğini PermissionSetAttribute başlatır. |
Özellikler
| Action |
Bir güvenlik eylemi alır veya ayarlar. (Devralındığı yer: SecurityAttribute) |
| File |
Bildirilecek özel izin kümesinin XML gösterimini içeren bir dosyayı alır veya ayarlar. |
| Hex |
XML kodlanmış izin kümesinin onaltılık gösterimini alır veya ayarlar. |
| Name |
İzin kümesinin adını alır veya ayarlar. |
| TypeId |
Türetilmiş bir sınıfta uygulandığında, bu Attributeiçin benzersiz bir tanımlayıcı alır. (Devralındığı yer: Attribute) |
| UnicodeEncoded |
tarafından File belirtilen dosyanın Unicode mu yoksa ASCII kodlanmış mı olduğunu belirten bir değer alır veya ayarlar. |
| Unrestricted |
Özniteliği tarafından korunan kaynağa yönelik tam (sınırsız) iznin bildirilip bildirilmediğini belirten bir değer alır veya ayarlar. (Devralındığı yer: SecurityAttribute) |
| XML |
İzin kümesinin XML gösterimini alır veya ayarlar. |
Yöntemler
| CreatePermission() |
Bu yöntem kullanılmaz. |
| CreatePermissionSet() |
Bu izin kümesi öznitelik nesnesini temel alan yeni bir izin kümesi oluşturur ve döndürür. |
| Equals(Object) |
Bu örneğin belirtilen bir nesneye eşit olup olmadığını gösteren bir değeri döndürür. (Devralındığı yer: Attribute) |
| GetHashCode() |
Bu örneğe ilişkin karma kodu döndürür. (Devralındığı yer: Attribute) |
| GetType() |
Type Geçerli örneğini alır. (Devralındığı yer: Object) |
| IsDefaultAttribute() |
Türetilmiş bir sınıfta geçersiz kılındığında, bu örneğin değerinin türetilmiş sınıf için varsayılan değer olup olmadığını gösterir. (Devralındığı yer: Attribute) |
| Match(Object) |
Türetilmiş bir sınıfta geçersiz kılındığında, bu örneğin belirtilen bir nesneye eşit olup olmadığını gösteren bir değer döndürür. (Devralındığı yer: Attribute) |
| MemberwiseClone() |
Geçerli Objectöğesinin sığ bir kopyasını oluşturur. (Devralındığı yer: Object) |
| ToString() |
Geçerli nesneyi temsil eden dizeyi döndürür. (Devralındığı yer: Object) |
Belirtik Arabirim Kullanımları
| _Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr) |
Bir ad kümesini karşılık gelen bir dağıtma tanımlayıcısı kümesine eşler. (Devralındığı yer: Attribute) |
| _Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) |
Bir arabirimin tür bilgilerini almak için kullanılabilecek bir nesnenin tür bilgilerini alır. (Devralındığı yer: Attribute) |
| _Attribute.GetTypeInfoCount(UInt32) |
Bir nesnenin sağladığı tür bilgisi arabirimlerinin sayısını alır (0 ya da 1). (Devralındığı yer: Attribute) |
| _Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) |
Bir nesne tarafından sunulan özelliklere ve yöntemlere erişim sağlar. (Devralındığı yer: Attribute) |