FileCodeGroup Sınıf
Önemli
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Dikkat
Code Access Security is not supported or honored by the runtime.
Üyelik koşuluyla eşleşen kod derlemelerine kod derlemelerinde bulunan dosyaları işleme izni verir. Bu sınıf devralınamaz.
public ref class FileCodeGroup sealed : System::Security::Policy::CodeGroupC#
[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 FileCodeGroup : System.Security.Policy.CodeGroupC#
[System.Serializable]
public sealed class FileCodeGroup : System.Security.Policy.CodeGroupC#
[System.Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
public sealed class FileCodeGroup : System.Security.Policy.CodeGroupC#
public sealed class FileCodeGroup : System.Security.Policy.CodeGroup[<System.Obsolete("Code Access Security is not supported or honored by the runtime.", DiagnosticId="SYSLIB0003", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
type FileCodeGroup = class
inherit CodeGroup[<System.Serializable>]
type FileCodeGroup = class
inherit CodeGroup[<System.Serializable>]
[<System.Runtime.InteropServices.ComVisible(true)>]
type FileCodeGroup = class
inherit CodeGrouptype FileCodeGroup = class
inherit CodeGroupPublic NotInheritable Class FileCodeGroup
Inherits CodeGroup- Devralma
- Öznitelikler
Aşağıdaki örnekte, FileCodeGroup sınıfının üyelerinin kullanımı gösterilmektedir.
using namespace System;
using namespace System::Security;
using namespace System::Security::Policy;
using namespace System::Security::Permissions;
using namespace System::Reflection;
ref class Members
{
public:
[STAThread]
static void Main()
{
FileCodeGroup^ fileCodeGroup = constructDefaultGroup();
// Create a deep copy of the FileCodeGroup.
FileCodeGroup^ copyCodeGroup =
dynamic_cast<FileCodeGroup^>(fileCodeGroup->Copy());
CompareTwoCodeGroups( fileCodeGroup, copyCodeGroup );
addPolicy( &fileCodeGroup );
addXmlMember( &fileCodeGroup );
updateMembershipCondition( &fileCodeGroup );
addChildCodeGroup( &fileCodeGroup );
Console::Write( L"Comparing the resolved code group " );
Console::WriteLine( L"with the initial code group." );
FileCodeGroup^ resolvedCodeGroup =
ResolveGroupToEvidence( fileCodeGroup );
if ( CompareTwoCodeGroups( fileCodeGroup, resolvedCodeGroup ) )
{
PrintCodeGroup( resolvedCodeGroup );
}
else
{
PrintCodeGroup( fileCodeGroup );
}
Console::WriteLine( L"This sample completed successfully; press Enter to exit." );
Console::ReadLine();
}
private:
// Construct a new FileCodeGroup with Read, Write, Append
// and PathDiscovery access.
static FileCodeGroup^ constructDefaultGroup()
{
// Construct a new file code group that has complete access to
// files in the specified path.
FileCodeGroup^ fileCodeGroup = gcnew FileCodeGroup(
gcnew AllMembershipCondition,FileIOPermissionAccess::AllAccess );
// Set the name of the file code group.
fileCodeGroup->Name = L"TempCodeGroup";
// Set the description of the file code group.
fileCodeGroup->Description = L"Temp folder permissions group";
// Retrieve the string representation of the fileCodeGroup�s
// attributes. FileCodeGroup does not use AttributeString, so the
// value should be null.
if ( fileCodeGroup->AttributeString != nullptr )
{
throw gcnew NullReferenceException(
L"The AttributeString property should be null." );
}
return fileCodeGroup;
}
// Add file permission to restrict write access to all files on the
// local machine.
static void addPolicy( interior_ptr<FileCodeGroup^> fileCodeGroup )
{
// Set the PolicyStatement property to a policy with read access to
// the root directory of drive C.
FileIOPermission^ rootFilePermissions =
gcnew FileIOPermission( PermissionState::None );
rootFilePermissions->AllLocalFiles =
FileIOPermissionAccess::Read;
rootFilePermissions->SetPathList(
FileIOPermissionAccess::Read, L"C:\\" );
NamedPermissionSet^ namedPermissions =
gcnew NamedPermissionSet( L"RootPermissions" );
namedPermissions->AddPermission( rootFilePermissions );
( *fileCodeGroup )->PolicyStatement =
gcnew PolicyStatement( namedPermissions );
}
// Set the membership condition of the specified FileCodeGroup
// to the Intranet zone.
static void updateMembershipCondition( interior_ptr<FileCodeGroup^> fileCodeGroup )
{
ZoneMembershipCondition^ zoneCondition =
gcnew ZoneMembershipCondition( SecurityZone::Intranet );
( *fileCodeGroup )->MembershipCondition = zoneCondition;
}
// Add a child group with read-access file permission to the specified
// code group.
static void addChildCodeGroup( interior_ptr<FileCodeGroup^> fileCodeGroup )
{
// Create a file code group with read-access permission.
FileCodeGroup^ tempFolderCodeGroup = gcnew FileCodeGroup(
gcnew AllMembershipCondition,FileIOPermissionAccess::Read );
// Set the name of the child code group and add it to
// the specified code group.
tempFolderCodeGroup->Name = L"Read-only group";
( *fileCodeGroup )->AddChild( tempFolderCodeGroup );
}
// Compare the two specified file code groups for equality.
static bool CompareTwoCodeGroups( FileCodeGroup^ firstCodeGroup,
FileCodeGroup^ secondCodeGroup )
{
if ( firstCodeGroup->Equals( secondCodeGroup ) )
{
Console::WriteLine( L"The two code groups are equal." );
return true;
}
else
{
Console::WriteLine( L"The two code groups are not equal." );
return false;
}
}
// Retrieve the resolved policy based on Evidence from the executing
// assembly found in the specified code group.
static String^ ResolveEvidence( CodeGroup^ fileCodeGroup )
{
String^ policyString = L"";
// Resolve the policy based on evidence in the executing assembly.
Assembly^ assembly = Members::typeid->Assembly;
Evidence^ executingEvidence = assembly->Evidence;
PolicyStatement^ policy = fileCodeGroup->Resolve( executingEvidence );
if ( policy != nullptr )
{
policyString = policy->ToString();
}
return policyString;
}
// Retrieve the resolved code group based on the Evidence from
// the executing assembly found in the specified code group.
static FileCodeGroup^ ResolveGroupToEvidence( FileCodeGroup^ fileCodeGroup )
{
// Resolve matching code groups to the executing assembly.
Assembly^ assembly = Members::typeid->Assembly;
Evidence^ evidence = assembly->Evidence;
CodeGroup^ codeGroup = fileCodeGroup->ResolveMatchingCodeGroups( evidence );
return dynamic_cast<FileCodeGroup^>(codeGroup);
}
// If a domain attribute is not found in the specified FileCodeGroup,
// add a child XML element identifying a custom membership condition.
static void addXmlMember( interior_ptr<FileCodeGroup^> fileCodeGroup )
{
SecurityElement^ xmlElement = ( *fileCodeGroup )->ToXml();
SecurityElement^ rootElement = gcnew SecurityElement( L"CodeGroup" );
if ( xmlElement->Attribute(L"domain") == nullptr )
{
SecurityElement^ newElement = gcnew SecurityElement(
L"CustomMembershipCondition" );
newElement->AddAttribute( L"class", L"CustomMembershipCondition" );
newElement->AddAttribute( L"version", L"1" );
newElement->AddAttribute( L"domain", L"contoso.com" );
rootElement->AddChild( newElement );
( *fileCodeGroup )->FromXml( rootElement );
}
Console::WriteLine( L"Added a custom membership condition:" );
Console::WriteLine( rootElement );
}
// Print the properties of the specified code group to the console.
static void PrintCodeGroup( CodeGroup^ codeGroup )
{
// Compare the type of the specified object with the FileCodeGroup
// type.
if ( !codeGroup->GetType()->Equals( FileCodeGroup::typeid ) )
{
throw gcnew ArgumentException( L"Expected the FileCodeGroup type." );
}
String^ codeGroupName = codeGroup->Name;
String^ membershipCondition = codeGroup->MembershipCondition->ToString();
String^ permissionSetName = codeGroup->PermissionSetName;
int hashCode = codeGroup->GetHashCode();
String^ mergeLogic = L"";
if ( codeGroup->MergeLogic->Equals( L"Union" ) )
{
mergeLogic = L" with Union merge logic";
}
// Retrieve the class path for FileCodeGroup.
String^ fileGroupClass = codeGroup->ToString();
// Write summary to the console window.
Console::WriteLine( L"\n*** {0} summary ***", fileGroupClass );
Console::Write( L"A FileCodeGroup named " );
Console::Write( L"{0}{1}", codeGroupName, mergeLogic );
Console::Write( L" has been created with hash code{0}.", hashCode );
Console::Write( L"This code group contains a {0}", membershipCondition );
Console::Write( L" membership condition with the " );
Console::Write( L"{0} permission set. ", permissionSetName );
Console::Write( L"The code group has the following security policy: " );
Console::WriteLine( ResolveEvidence( codeGroup ) );
int childCount = codeGroup->Children->Count;
if ( childCount > 0 )
{
Console::Write( L"There are {0}", childCount );
Console::WriteLine( L" child code groups in this code group." );
// Iterate through the child code groups to display their names
// and remove them from the specified code group.
for ( int i = 0; i < childCount; i++ )
{
// Get child code group as type FileCodeGroup.
FileCodeGroup^ childCodeGroup =
dynamic_cast<FileCodeGroup^>(codeGroup->Children->default[ i ]);
Console::Write( L"Removing the {0}.", childCodeGroup->Name );
// Remove child code group.
codeGroup->RemoveChild( childCodeGroup );
}
Console::WriteLine();
}
else
{
Console::Write( L"There are no child code groups" );
Console::WriteLine( L" in this code group." );
}
}
};
int main()
{
Members::Main();
}
//
// This sample produces the following output:
//
// The two code groups are equal.
// Added a custom membership condition:
// <CustomMembershipCondition class="CustomMembershipCondition"
// version="1"
// domain="contoso.com"/>
// Comparing the resolved code group with the initial code group.
// The two code groups are not equal.
//
// *** System.Security.Policy.FileCodeGroup summary ***
// A FileCodeGroup named with Union merge logic has been created with hash
// code 113151473. This code group contains a Zone - Intranet membership
// condition with the Same directory FileIO - NoAccess permission set. The
// code group has the following security policy:
// There are 1 child code groups in this code group.
// Removing the Read-only group.
// This sample completed successfully; press Enter to exit.
C#
using System;
using System.Security;
using System.Security.Policy;
using System.Security.Permissions;
using System.Reflection;
class Members
{
[STAThread]
static void Main(string[] args)
{
FileCodeGroup fileCodeGroup = constructDefaultGroup();
// Create a deep copy of the FileCodeGroup.
FileCodeGroup copyCodeGroup = (FileCodeGroup)fileCodeGroup.Copy();
CompareTwoCodeGroups(fileCodeGroup, copyCodeGroup);
addPolicy(ref fileCodeGroup);
addXmlMember(ref fileCodeGroup);
updateMembershipCondition(ref fileCodeGroup);
addChildCodeGroup(ref fileCodeGroup);
Console.Write("Comparing the resolved code group ");
Console.WriteLine("with the initial code group.");
FileCodeGroup resolvedCodeGroup =
ResolveGroupToEvidence(fileCodeGroup);
if (CompareTwoCodeGroups(fileCodeGroup, resolvedCodeGroup))
{
PrintCodeGroup(resolvedCodeGroup);
}
else
{
PrintCodeGroup(fileCodeGroup);
}
Console.WriteLine("This sample completed successfully; " +
"press Enter to exit.");
Console.ReadLine();
}
// Construct a new FileCodeGroup with Read, Write, Append
// and PathDiscovery access.
private static FileCodeGroup constructDefaultGroup()
{
// Construct a new file code group that has complete access to
// files in the specified path.
FileCodeGroup fileCodeGroup =
new FileCodeGroup(
new AllMembershipCondition(),
FileIOPermissionAccess.AllAccess);
// Set the name of the file code group.
fileCodeGroup.Name = "TempCodeGroup";
// Set the description of the file code group.
fileCodeGroup.Description = "Temp folder permissions group";
// Retrieve the string representation of the fileCodeGroup’s
// attributes. FileCodeGroup does not use AttributeString, so the
// value should be null.
if (fileCodeGroup.AttributeString != null)
{
throw new NullReferenceException(
"The AttributeString property should be null.");
}
return fileCodeGroup;
}
// Add file permission to restrict write access to all files on the
// local machine.
private static void addPolicy(ref FileCodeGroup fileCodeGroup)
{
// Set the PolicyStatement property to a policy with read access to
// the root directory of drive C.
FileIOPermission rootFilePermissions =
new FileIOPermission(PermissionState.None);
rootFilePermissions.AllLocalFiles = FileIOPermissionAccess.Read;
rootFilePermissions.SetPathList(FileIOPermissionAccess.Read,"C:\\");
NamedPermissionSet namedPermissions =
new NamedPermissionSet("RootPermissions");
namedPermissions.AddPermission(rootFilePermissions);
fileCodeGroup.PolicyStatement =
new PolicyStatement(namedPermissions);
}
// Set the membership condition of the specified FileCodeGroup
// to the Intranet zone.
private static void updateMembershipCondition(
ref FileCodeGroup fileCodeGroup)
{
ZoneMembershipCondition zoneCondition =
new ZoneMembershipCondition(SecurityZone.Intranet);
fileCodeGroup.MembershipCondition = zoneCondition;
}
// Add a child group with read-access file permission to the specified
// code group.
private static void addChildCodeGroup(ref FileCodeGroup fileCodeGroup)
{
// Create a file code group with read-access permission.
FileCodeGroup tempFolderCodeGroup = new FileCodeGroup(
new AllMembershipCondition(),
FileIOPermissionAccess.Read);
// Set the name of the child code group and add it to
// the specified code group.
tempFolderCodeGroup.Name = "Read-only group";
fileCodeGroup.AddChild(tempFolderCodeGroup);
}
// Compare the two specified file code groups for equality.
private static bool CompareTwoCodeGroups(
FileCodeGroup firstCodeGroup, FileCodeGroup secondCodeGroup)
{
if (firstCodeGroup.Equals(secondCodeGroup))
{
Console.WriteLine("The two code groups are equal.");
return true;
}
else
{
Console.WriteLine("The two code groups are not equal.");
return false;
}
}
// Retrieve the resolved policy based on Evidence from the executing
// assembly found in the specified code group.
private static string ResolveEvidence(CodeGroup fileCodeGroup)
{
string policyString = "";
// Resolve the policy based on evidence in the executing assembly.
Assembly assembly = typeof(Members).Assembly;
Evidence executingEvidence = assembly.Evidence;
PolicyStatement policy = fileCodeGroup.Resolve(executingEvidence);
if (policy != null)
{
policyString = policy.ToString();
}
return policyString;
}
// Retrieve the resolved code group based on the Evidence from
// the executing assembly found in the specified code group.
private static FileCodeGroup ResolveGroupToEvidence(
FileCodeGroup fileCodeGroup)
{
// Resolve matching code groups to the executing assembly.
Assembly assembly = typeof(Members).Assembly;
Evidence evidence = assembly.Evidence;
CodeGroup codeGroup =
fileCodeGroup.ResolveMatchingCodeGroups(evidence);
return (FileCodeGroup)codeGroup;
}
// If a domain attribute is not found in the specified FileCodeGroup,
// add a child XML element identifying a custom membership condition.
private static void addXmlMember(ref FileCodeGroup fileCodeGroup)
{
SecurityElement xmlElement = fileCodeGroup.ToXml();
SecurityElement rootElement = new SecurityElement("CodeGroup");
if (xmlElement.Attribute("domain") == null)
{
SecurityElement newElement =
new SecurityElement("CustomMembershipCondition");
newElement.AddAttribute("class","CustomMembershipCondition");
newElement.AddAttribute("version","1");
newElement.AddAttribute("domain","contoso.com");
rootElement.AddChild(newElement);
fileCodeGroup.FromXml(rootElement);
}
Console.WriteLine("Added a custom membership condition:");
Console.WriteLine(rootElement.ToString());
}
// Print the properties of the specified code group to the console.
private static void PrintCodeGroup(CodeGroup codeGroup)
{
// Compare the type of the specified object with the FileCodeGroup
// type.
if (!codeGroup.GetType().Equals(typeof(FileCodeGroup)))
{
throw new ArgumentException("Expected the FileCodeGroup type.");
}
string codeGroupName = codeGroup.Name;
string membershipCondition = codeGroup.MembershipCondition.ToString();
string permissionSetName = codeGroup.PermissionSetName;
int hashCode = codeGroup.GetHashCode();
string mergeLogic = "";
if (codeGroup.MergeLogic.Equals("Union"))
{
mergeLogic = " with Union merge logic";
}
// Retrieve the class path for FileCodeGroup.
string fileGroupClass = codeGroup.ToString();
// Write summary to the console window.
Console.WriteLine("\n*** " + fileGroupClass + " summary ***");
Console.Write("A FileCodeGroup named ");
Console.Write(codeGroupName + mergeLogic);
Console.Write(" has been created with hash code" + hashCode + ".");
Console.Write("This code group contains a " + membershipCondition);
Console.Write(" membership condition with the ");
Console.Write(permissionSetName + " permission set. ");
Console.Write("The code group has the following security policy: ");
Console.WriteLine(ResolveEvidence(codeGroup));
int childCount = codeGroup.Children.Count;
if (childCount > 0 )
{
Console.Write("There are " + childCount);
Console.WriteLine(" child code groups in this code group.");
// Iterate through the child code groups to display their names
// and remove them from the specified code group.
for (int i=0; i < childCount; i++)
{
// Get child code group as type FileCodeGroup.
FileCodeGroup childCodeGroup =
(FileCodeGroup)codeGroup.Children[i];
Console.Write("Removing the " + childCodeGroup.Name + ".");
// Remove child code group.
codeGroup.RemoveChild(childCodeGroup);
}
Console.WriteLine();
}
else
{
Console.Write("There are no child code groups");
Console.WriteLine(" in this code group.");
}
}
}
//
// This sample produces the following output:
//
// The two code groups are equal.
// Added a custom membership condition:
// <CustomMembershipCondition class="CustomMembershipCondition"
// version="1"
// domain="contoso.com"/>
// Comparing the resolved code group with the initial code group.
// The two code groups are not equal.
//
// *** System.Security.Policy.FileCodeGroup summary ***
// A FileCodeGroup named with Union merge logic has been created with hash
// code 113151473. This code group contains a Zone - Intranet membership
// condition with the Same directory FileIO - NoAccess permission set. The
// code group has the following security policy:
// There are 1 child code groups in this code group.
// Removing the Read-only group.
// This sample completed successfully; press Enter to exit.
Imports System.Security
Imports System.Security.Policy
Imports System.Security.Permissions
Imports System.Reflection
Imports System.Windows.Forms
Public Class Form1
Inherits System.Windows.Forms.Form
' Event handler for Run button.
Private Sub Button1_Click( _
ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles Button1.Click
tbxOutput.Cursor = Cursors.WaitCursor
tbxOutput.Text = ""
Dim fileCodeGroup As FileCodeGroup = constructDefaultGroup()
' Create a deep copy of the FileCodeGroup;
Dim copyCodeGroup As FileCodeGroup = _
CType(fileCodeGroup.Copy(), FileCodeGroup)
CompareTwoCodeGroups(fileCodeGroup, copyCodeGroup)
addPolicy(fileCodeGroup)
addXmlMember(fileCodeGroup)
updateMembershipCondition(fileCodeGroup)
addChildCodeGroup(fileCodeGroup)
WriteLine("Comparing the resolved code group with the initial " + _
"code group:")
Dim resolvedCodeGroup As FileCodeGroup
resolvedCodeGroup = ResolveGroupToEvidence(fileCodeGroup)
If (CompareTwoCodeGroups(fileCodeGroup, resolvedCodeGroup)) Then
PrintCodeGroup(resolvedCodeGroup)
Else
PrintCodeGroup(fileCodeGroup)
End If
' Reset the cursor and conclude application.
tbxOutput.AppendText(vbCrLf + "This sample completed " + _
"successfully; press Exit to continue.")
tbxOutput.Cursor = Cursors.Default
End Sub
' Construct a new FileCodeGroup with read, write, append and
' discovery access.
Private Function constructDefaultGroup() As FileCodeGroup
' Construct a file code group with read, write, append and
' discovery access.
Dim fileCodeGroup As New FileCodeGroup( _
New AllMembershipCondition, _
FileIOPermissionAccess.AllAccess)
' Set the name of the file code group.
fileCodeGroup.Name = "TempCodeGroup"
' Set the description of the file code group.
fileCodeGroup.Description = "Temp folder permissions group"
' Retrieve the string representation of the Policy's attributes.
' FileCodeGroup does not use AttributeString, so the value should
' be null.
If (Not fileCodeGroup.AttributeString Is Nothing) Then
Throw New NullReferenceException( _
"AttributeString property is not empty")
End If
Return fileCodeGroup
End Function
' Add file permission to restrict write access to all files on the
' local machine.
Private Sub addPolicy(ByRef fileCodeGroup As FileCodeGroup)
' Set the PolicyStatement property to a policy with
' read access to c:\.
Dim rootFilePermissions As New FileIOPermission(PermissionState.None)
rootFilePermissions.AllLocalFiles = FileIOPermissionAccess.Read
rootFilePermissions.SetPathList(FileIOPermissionAccess.Read, "C:\\")
Dim namedPermissions As New NamedPermissionSet("RootPermissions")
namedPermissions.AddPermission(rootFilePermissions)
fileCodeGroup.PolicyStatement = New PolicyStatement(namedPermissions)
End Sub
' Set the membership condition of the specified FileCodeGroup to
' Intranet zone.
Private Sub updateMembershipCondition( _
ByRef fileCodeGroup As FileCodeGroup)
' Set the membership condition to the Intranet zone.
Dim zoneCondition As _
New ZoneMembershipCondition(SecurityZone.Intranet)
fileCodeGroup.MembershipCondition = zoneCondition
End Sub
' Add a child group with read-access file permissions to the specified
' code group.
Private Sub addChildCodeGroup(ByRef fileCodeGroup As FileCodeGroup)
' Create a file code group with read access.
Dim tempFolderCodeGroup As New FileCodeGroup( _
New AllMembershipCondition, _
FileIOPermissionAccess.Read)
' Set the name of the child code group and add it to the specified
' code group.
tempFolderCodeGroup.Name = "Read-only group"
fileCodeGroup.AddChild(tempFolderCodeGroup)
End Sub
' Compare two specified FileCodeGroups for equality.
Private Function CompareTwoCodeGroups( _
ByVal firstCodeGroup As FileCodeGroup, _
ByVal secondCodeGroup As FileCodeGroup) As Boolean
' Compare two FileCodeGroups for equality.
If (firstCodeGroup.Equals(secondCodeGroup)) Then
WriteLine("The two code groups are equal.")
Return True
Else
WriteLine("The two code groups are not equal.")
Return False
End If
End Function
' Retrieve the resolved policy based on the executing evidence found
' in the specified code group.
Private Function ResolveEvidence( _
ByVal fileCodeGroup As CodeGroup) As String
Dim policyString As String = ""
' Resolve the policy based on the executing assemlby's evidence.
Dim executingAssembly As [Assembly]
executingAssembly = Me.GetType().Assembly
Dim executingEvidence As Evidence = executingAssembly.Evidence
Dim policy As PolicyStatement
policy = fileCodeGroup.Resolve(executingEvidence)
If (Not policy Is Nothing) Then
policyString = policy.ToString()
End If
Return policyString
End Function
' Retrieve the resolved code group based on the executing evidence found
' in the specified code group.
Private Function ResolveGroupToEvidence( _
ByVal fileCodeGroup As FileCodeGroup) As FileCodeGroup
' Resolve matching code groups to the executing assembly.
Dim executingAssembly As [Assembly]
executingAssembly = Me.GetType().Assembly
Dim evidence As Evidence = executingAssembly.Evidence
Dim codeGroup As CodeGroup
codeGroup = fileCodeGroup.ResolveMatchingCodeGroups(evidence)
Return CType(codeGroup, FileCodeGroup)
End Function
' If domain attribute is not found in specified FileCodeGroup,
' add a child Xml element identifying a custom membership condition.
Private Sub addXmlMember(ByRef fileCodeGroup As FileCodeGroup)
Dim xmlElement As SecurityElement = fileCodeGroup.ToXml()
Dim rootElement As New SecurityElement("CodeGroup")
If (xmlElement.Attribute("domain") Is Nothing) Then
Dim newElement As New SecurityElement("CustomMembershipCondition")
newElement.AddAttribute("class", "CustomMembershipCondition")
newElement.AddAttribute("version", "1")
newElement.AddAttribute("domain", "contoso.com")
rootElement.AddChild(newElement)
fileCodeGroup.FromXml(rootElement)
End If
WriteLine("Added a custom membership condition:")
WriteLine(rootElement.ToString())
End Sub
' Print the properties of the specified code group to the output textbox.
Private Sub PrintCodeGroup(ByVal codeGroup As CodeGroup)
' Compare specified object's type with the FileCodeGroup type.
If (Not codeGroup.GetType() Is GetType(FileCodeGroup)) Then
Throw New ArgumentException("Excepted FileCodeGroup type")
End If
Dim codeGroupName As String = codeGroup.Name
Dim membershipCondition As String
membershipCondition = codeGroup.MembershipCondition.ToString()
Dim permissionSetName As String = codeGroup.PermissionSetName
Dim hashCode As Integer = codeGroup.GetHashCode()
Dim mergeLogic As String = ""
If (codeGroup.MergeLogic.Equals("Union")) Then
mergeLogic = " with Union merge logic"
End If
' Retrieve the class path for FileCodeGroup.
Dim fileGroupClass As String = codeGroup.ToString()
' Write summary to console window.
WriteLine(vbCrLf + "*** " + fileGroupClass + " summary ***")
Write("A FileCodeGroup named " + codeGroupName + mergeLogic)
Write(" has been created with hash code(" + hashCode.ToString())
Write("). It contains a " + membershipCondition)
Write(" membership condition with the ")
Write(permissionSetName + " permission set. ")
WriteLine("It has the following policy: " + _
ResolveEvidence(codeGroup))
Dim childCount As Integer = codeGroup.Children.Count
If (childCount > 0) Then
Write("There are " + childCount.ToString())
WriteLine(" child elements in the code group:")
' Iterate through the child code groups to display their names and
' remove them from the specified code group.
For i As Int16 = 0 To childCount - 1 Step 1
' Get child code group as type FileCodeGroup.
Dim childCodeGroup As FileCodeGroup
childCodeGroup = CType(codeGroup.Children(i), FileCodeGroup)
Write("Removing the " + childCodeGroup.Name + ".")
' Remove child codegroup.
codeGroup.RemoveChild(childCodeGroup)
Next
WriteLine("")
Else
WriteLine("There are no children found in the code group:")
End If
End Sub
' Write message to the output textbox.
Private Sub Write(ByVal message As String)
tbxOutput.AppendText(message)
End Sub
' Write message with 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 = "FileCodeGroup"
Me.Panel2.ResumeLayout(False)
Me.Panel1.ResumeLayout(False)
Me.ResumeLayout(False)
End Sub
#End Region
End Class
'
' This sample produces the following output:
'
' The two code groups are equal.
' Added a custom membership condition:
' <CustomMembershipCondition class="CustomMembershipCondition"
' version="1"
' domain="contoso.com"/>
'
' Comparing the resolved code group with the initial code group:
' The two code groups are not equal.
'
' *** System.Security.Policy.FileCodeGroup summary ***
' A FileCodeGroup named with Union merge logic has been created with hash
' code (113152269). It contains a Zone - Intranet membership condition with
' the Same directory FileIO - NoAccess permission set. Has the following
' policy:
' There are 1 child elements in the code group:
' Removing the Read-only group.
'
' This sample completed successfully; press Exit to continue.
Dikkat
Kod Erişim Güvenliği (CAS), .NET Framework ve .NET'in tüm sürümlerinde kullanım dışı bırakılmıştır. .NET'in son sürümleri CAS ek açıklamalarını dikkate almaz ve CAS ile ilgili API'ler kullanılırsa hata üretir. Geliştiriciler, güvenlik görevlerini yerine getirmek için alternatif yöntemler aramalıdır.
Kod grupları, kod erişim güvenlik ilkesinin yapı taşlarıdır. Her ilke düzeyi, alt kod gruplarına sahip olabilecek bir kök kod grubundan oluşur. Her alt kod grubunun kendi alt kod grupları olabilir; bu davranış herhangi bir sayıda düzeye genişleterek bir ağaç oluşturur. Her kod grubu, belirli bir derlemenin bu derlemeye ait olup olmadığını bu derlemenin kanıtına göre belirleyen bir üyelik koşuluna sahiptir. Yalnızca üyelik koşulları belirli bir derlemeyle eşleşen kod grupları ve alt kod grupları ilke uygular.
FileCodeGroup, UnionCodeGroupile aynı alt eşleme semantiğine sahiptir. Ancak FileCodeGroup, kodun çalıştırıldığı dizine dosya erişimi veren dinamik olarak hesaplanan bir FileIOPermission içeren bir izin kümesi döndürür; UnionCodeGroup yalnızca statik bir izin kümesi döndürür. Verilen dosya erişimi türü oluşturucuya parametre olarak geçirilir.
Bu kod grubu yalnızca bir dosya protokolü üzerinden çalıştırılacak derlemelerle, yani bir dosyaya veya UNC yoluna işaret eden URL'lere sahip derlemelerle eşleşir.
|
File |
Geçersiz.
FileCodeGroup sınıfının yeni bir örneğini başlatır. |
|
Attribute |
Geçersiz.
Kod grubu için ilke deyiminin özniteliklerinin dize gösterimini alır. |
| Children |
Geçersiz.
Bir kod grubunun alt kod gruplarının sıralı listesini alır veya ayarlar. (Devralındığı yer: CodeGroup) |
| Description |
Geçersiz.
Kod grubunun açıklamasını alır veya ayarlar. (Devralındığı yer: CodeGroup) |
|
Membership |
Geçersiz.
Kod grubunun üyelik koşulunu alır veya ayarlar. (Devralındığı yer: CodeGroup) |
|
Merge |
Geçersiz.
Birleştirme mantığını alır. |
| Name |
Geçersiz.
Kod grubunun adını alır veya ayarlar. (Devralındığı yer: CodeGroup) |
|
Permission |
Geçersiz.
Kod grubu için adlandırılmış izin kümesinin adını alır. |
|
Policy |
Geçersiz.
Kod grubuyla ilişkili ilke deyimini alır veya ayarlar. (Devralındığı yer: CodeGroup) |
|
Add |
Geçersiz.
Geçerli kod grubuna bir alt kod grubu ekler. (Devralındığı yer: CodeGroup) |
| Copy() |
Geçersiz.
Geçerli kod grubunun derin bir kopyasını oluşturur. |
|
Create |
Geçersiz.
Türetilmiş bir sınıfta geçersiz kılındığında, türetilmiş bir kod grubuna özgü özellikleri ve iç durumu serileştirir ve serileştirmeyi belirtilen SecurityElementekler. (Devralındığı yer: CodeGroup) |
|
Equals(Code |
Geçersiz.
Belirtilen kod grubunun geçerli kod grubuyla eşdeğer olup olmadığını belirler ve belirtilmişse alt kod gruplarını da denetler. (Devralındığı yer: CodeGroup) |
| Equals(Object) |
Geçersiz.
Belirtilen kod grubunun geçerli kod grubuyla eşdeğer olup olmadığını belirler. |
|
From |
Geçersiz.
Belirli bir durum ve ilke düzeyine sahip bir güvenlik nesnesini XML kodlamasından yeniden oluşturur. (Devralındığı yer: CodeGroup) |
|
From |
Geçersiz.
Xml kodlamasından belirli bir duruma sahip bir güvenlik nesnesini yeniden oluşturur. (Devralındığı yer: CodeGroup) |
|
Get |
Geçersiz.
Geçerli kod grubunun karma kodunu alır. |
|
Get |
Geçersiz.
Geçerli örneğin Type alır. (Devralındığı yer: Object) |
|
Memberwise |
Geçersiz.
Geçerli Objectbasit bir kopyasını oluşturur. (Devralındığı yer: Object) |
|
Parse |
Geçersiz.
Türetilmiş bir sınıfta geçersiz kılındığında, belirtilen SecurityElementtüretilmiş bir kod grubuna özgü özellikleri ve iç durumu yeniden oluşturur. (Devralındığı yer: CodeGroup) |
|
Remove |
Geçersiz.
Belirtilen alt kod grubunu kaldırır. (Devralındığı yer: CodeGroup) |
| Resolve(Evidence) |
Geçersiz.
Bir dizi kanıt için kod grubu ve alt öğeleri için ilkeyi çözümler. |
|
Resolve |
Geçersiz.
Eşleşen kod gruplarını çözümler. |
|
To |
Geçersiz.
Geçerli nesneyi temsil eden bir dize döndürür. (Devralındığı yer: Object) |
|
To |
Geçersiz.
Güvenlik nesnesinin ve geçerli durumunun XML kodlamasını oluşturur. (Devralındığı yer: CodeGroup) |
|
To |
Geçersiz.
Güvenlik nesnesinin, geçerli durumunun ve kodun bulunduğu ilke düzeyinin XML kodlamasını oluşturur. (Devralındığı yer: CodeGroup) |
| Ürün | Sürümler (Kullanım dışı) |
|---|---|
| .NET | (6, 7, 8, 9) |
| .NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 2.0 |
| Windows Desktop | 3.0, 3.1 (5, 6, 7, 8, 9) |
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