SecurityPermission クラス
コードに適用されるセキュリティ アクセス許可のセットを記述します。このクラスは継承できません。
この型のすべてのメンバの一覧については、SecurityPermission メンバ を参照してください。
System.Object
System.Security.CodeAccessPermission
System.Security.Permissions.SecurityPermission
<Serializable>
NotInheritable Public Class SecurityPermission Inherits CodeAccessPermission Implements IUnrestrictedPermission
[C#]
[Serializable]
public sealed class SecurityPermission : CodeAccessPermission, IUnrestrictedPermission
[C++]
[Serializable]
public __gc __sealed class SecurityPermission : public CodeAccessPermission, IUnrestrictedPermission
[JScript]
public
Serializable
class SecurityPermission extends CodeAccessPermission implements IUnrestrictedPermission
スレッドセーフ
この型の public static (Visual Basicでは Shared) のすべてのメンバは、マルチスレッド操作で安全に使用できます。インスタンスのメンバの場合は、スレッドセーフであるとは限りません。
解説
このアクセス許可は、 SecurityPermissionFlag 列挙体を使用します。この列挙体の値は、このドキュメントで参照できます。
使用例
' This sample demonstrates the IsSubsetOf, Union, Intersect, Copy, ToXml and FromXml methods
' of the SecurityPermission Class.
Imports System
Imports System.Security
Imports System.Security.Permissions
Imports Microsoft.VisualBasic
<Assembly: CLSCompliant(True)>
Public Class SecurityPermissionDemo
' IsSubsetOf determines whether the current permission is a subset of the specified permission.
Private Function IsSubsetOfDemo() As Boolean
Dim returnValue As Boolean = True
Dim Security1, Security2 As SecurityPermissionFlag
Dim SecurityPerm1, SecurityPerm2 As SecurityPermission
Dim SecurityGen1 As New SecurityGenerator()
Dim SecurityGen2 As New SecurityGenerator()
SecurityGen1.ResetIndex()
While SecurityGen1.CreateSecurity(SecurityPerm1, Security1)
If SecurityPerm1 Is Nothing Then
GoTo ContinueWhile1
End If
SecurityGen2.ResetIndex()
Console.WriteLine("********************************************************" & ControlChars.Lf)
While SecurityGen2.CreateSecurity(SecurityPerm2, Security2)
If SecurityPerm2 Is Nothing Then
GoTo ContinueWhile2
End If
Try
If SecurityPerm1.IsSubsetOf(SecurityPerm2) Then
Console.WriteLine((SecurityPerm1.Flags.ToString().ToString() _
& " is a subset of " & SecurityPerm2.Flags.ToString()))
Else
Console.WriteLine((SecurityPerm1.Flags.ToString() & " is not a subset of " _
& SecurityPerm2.Flags.ToString()))
End If
Catch e As Exception
Console.WriteLine(("An exception was thrown for subset :" & SecurityPerm1.ToString() _
& ControlChars.Lf & SecurityPerm2.ToString() & ControlChars.Lf & e.ToString()))
returnValue = False
End Try
ContinueWhile2:
End While
ContinueWhile1:
End While
Return returnValue
End Function 'IsSubsetOfDemo
' Union creates a new permission that is the union of the current permission and
' the specified permission.
Private Function UnionDemo() As Boolean
Dim returnValue As Boolean = True
Dim Security1, Security2 As SecurityPermissionFlag
Dim SecurityPerm1, SecurityPerm2 As SecurityPermission
Dim SecurityPerm3 As IPermission
Dim SecurityGen1 As New SecurityGenerator()
Dim SecurityGen2 As New SecurityGenerator()
SecurityGen1.ResetIndex()
While SecurityGen1.CreateSecurity(SecurityPerm1, Security1)
If SecurityPerm1 Is Nothing Then
GoTo ContinueWhile1
End If
Console.WriteLine("**********************************************************" & ControlChars.Lf)
SecurityGen2.ResetIndex()
While SecurityGen2.CreateSecurity(SecurityPerm2, Security2)
If SecurityPerm2 Is Nothing Then
GoTo ContinueWhile2
End If
SecurityPerm3 = CType(SecurityPerm1.Union(SecurityPerm2), SecurityPermission)
SecurityPerm3 = SecurityPerm1.Union(SecurityPerm2)
If SecurityPerm3 Is Nothing Then
Console.WriteLine(("The union of " & Security1 & " and " & Security2 & " is null."))
Else
Console.WriteLine(("The union of " & SecurityPerm1.Flags.ToString() _
& " and " & SecurityPerm2.Flags.ToString() & " = " & CType(SecurityPerm3, SecurityPermission).Flags.ToString().ToString()))
End If
ContinueWhile2:
End While
ContinueWhile1:
End While
Return returnValue
End Function 'UnionDemo
' Intersect creates and returns a new permission that is the intersection of the current
' permission and the permission specified.
Private Function IntersectDemo() As Boolean
Dim returnValue As Boolean = True
Dim Security1, Security2 As SecurityPermissionFlag
Dim SecurityPerm1, SecurityPerm2, SecurityPerm3 As SecurityPermission
Dim SecurityGen1 As New SecurityGenerator()
Dim SecurityGen2 As New SecurityGenerator()
SecurityGen1.ResetIndex()
While SecurityGen1.CreateSecurity(SecurityPerm1, Security1)
If SecurityPerm1 Is Nothing Then
GoTo ContinueWhile1
End If
Console.WriteLine("**********************************************************" & ControlChars.Lf)
SecurityGen2.ResetIndex()
While SecurityGen2.CreateSecurity(SecurityPerm2, Security2)
If SecurityPerm2 Is Nothing Then
GoTo ContinueWhile2
End If
SecurityPerm3 = CType(SecurityPerm1.Intersect(SecurityPerm2), SecurityPermission)
If Not (SecurityPerm3 Is Nothing) Then
Console.WriteLine(("The intersection of " & Security1.ToString() & " and " _
& Security2.ToString() & " = " _
& CType(SecurityPerm3, SecurityPermission).Flags.ToString().ToString()))
Else
Console.WriteLine(("The intersection of " & Security1.ToString() & " and " _
& Security2.ToString() & " is null."))
End If
ContinueWhile2:
End While
ContinueWhile1:
End While
Return returnValue
End Function 'IntersectDemo
'Copy creates and returns an identical copy of the current permission.
Private Function CopyDemo() As Boolean
Dim returnValue As Boolean = True
Dim Security1 As SecurityPermissionFlag
Dim SecurityPerm1, SecurityPerm2 As SecurityPermission
Dim SecurityGen1 As New SecurityGenerator()
Dim SecurityGen2 As New SecurityGenerator()
SecurityGen1.ResetIndex()
While SecurityGen1.CreateSecurity(SecurityPerm1, Security1)
If SecurityPerm1 Is Nothing Then
GoTo ContinueWhile1
End If
SecurityGen2.ResetIndex()
Console.WriteLine("********************************************************" & ControlChars.Lf)
Try
SecurityPerm2 = CType(SecurityPerm1.Copy(), SecurityPermission)
Console.WriteLine(("Result of copy = " & SecurityPerm2.ToString()))
Catch e As Exception
Console.WriteLine(("Copy failed :" & SecurityPerm1.ToString() & e.ToString()))
GoTo ContinueWhile1
End Try
ContinueWhile1:
End While
Return returnValue
End Function 'CopyDemo
' ToXml creates an XML encoding of the permission and its current state;
' FromXml reconstructs a permission with the specified state from the XML encoding.
Private Function ToFromXmlDemo() As Boolean
Dim returnValue As Boolean = True
Dim Security1 As SecurityPermissionFlag
Dim SecurityPerm1, SecurityPerm2 As SecurityPermission
Dim SecurityGen1 As New SecurityGenerator()
Dim SecurityGen2 As New SecurityGenerator()
SecurityGen1.ResetIndex()
While SecurityGen1.CreateSecurity(SecurityPerm1, Security1)
If SecurityPerm1 Is Nothing Then
GoTo ContinueWhile1
End If
Console.WriteLine("********************************************************" & ControlChars.Lf)
SecurityGen2.ResetIndex()
Try
SecurityPerm2 = New SecurityPermission(PermissionState.None)
SecurityPerm2.FromXml(SecurityPerm1.ToXml())
Console.WriteLine(("Result of ToFromXml = " & SecurityPerm2.ToString()))
Catch e As Exception
Console.WriteLine(("ToFromXml failed :" & SecurityPerm1.ToString() & e.ToString()))
GoTo ContinueWhile1
End Try
ContinueWhile1:
End While
Return returnValue
End Function 'ToFromXmlDemo
' Invoke all demos.
Public Function runDemo() As Boolean
Dim returnCode As Boolean = True
Dim tempReturnCode As Boolean
' Call the IsSubsetOf demo.
tempReturnCode = IsSubsetOfDemo()
If tempReturnCode Then
Console.Out.WriteLine("IsSubsetOf demo completed successfully.")
Else
Console.Out.WriteLine("IsSubsetOf demo failed.")
End If
returnCode = tempReturnCode AndAlso returnCode
' Call the Union demo.
tempReturnCode = UnionDemo()
If tempReturnCode Then
Console.Out.WriteLine("Union demo completed successfully.")
Else
Console.Out.WriteLine("Union demo failed.")
End If
returnCode = tempReturnCode AndAlso returnCode
' Call the Intersect demo.
tempReturnCode = IntersectDemo()
If tempReturnCode Then
Console.Out.WriteLine("Intersect demo completed successfully.")
Else
Console.Out.WriteLine("Intersect demo failed.")
End If
returnCode = tempReturnCode AndAlso returnCode
' Call the Copy demo.
tempReturnCode = CopyDemo()
If tempReturnCode Then
Console.Out.WriteLine("Copy demo completed successfully.")
Else
Console.Out.WriteLine("Copy demo failed.")
End If
returnCode = tempReturnCode AndAlso returnCode
' Call the ToFromXml demo.
tempReturnCode = ToFromXmlDemo()
If tempReturnCode Then
Console.Out.WriteLine("ToFromXml demo completed successfully.")
Else
Console.Out.WriteLine("ToFromXml demo failed.")
End If
returnCode = tempReturnCode AndAlso returnCode
Return returnCode
End Function 'runDemo
' Test harness.
Public Overloads Shared Sub Main(ByVal args() As [String])
Try
Dim democase As New SecurityPermissionDemo()
Dim returnCode As Boolean = democase.runDemo()
If returnCode Then
Console.Out.WriteLine("SecurityPermission demo completed successfully.")
Console.Out.WriteLine("Press the Enter key to exit.")
Dim consoleInput As String = Console.ReadLine()
System.Environment.ExitCode = 100
Else
Console.Out.WriteLine("SecurityPermission demo failed.")
Console.Out.WriteLine("Press the Enter key to exit.")
Dim consoleInput As String = Console.ReadLine()
System.Environment.ExitCode = 101
End If
Catch e As Exception
Console.Out.WriteLine("SecurityPermission demo failed.")
Console.WriteLine(e.ToString())
Console.Out.WriteLine("Press the Enter key to exit.")
Dim consoleInput As String = Console.ReadLine()
System.Environment.ExitCode = 101
End Try
End Sub 'Main
End Class 'SecurityPermissionDemo
' This class generates SecurityPermission objects.
Friend Class SecurityGenerator
Private mySecurity As SecurityPermissionFlag() = {SecurityPermissionFlag.AllFlags, _
SecurityPermissionFlag.Assertion, SecurityPermissionFlag.ControlAppDomain, _
SecurityPermissionFlag.ControlDomainPolicy, SecurityPermissionFlag.ControlEvidence, _
SecurityPermissionFlag.ControlPolicy, SecurityPermissionFlag.ControlPrincipal, _
SecurityPermissionFlag.ControlThread, SecurityPermissionFlag.Execution, _
SecurityPermissionFlag.Infrastructure, SecurityPermissionFlag.NoFlags, _
SecurityPermissionFlag.RemotingConfiguration, _
SecurityPermissionFlag.SerializationFormatter, _
SecurityPermissionFlag.SkipVerification, _
SecurityPermissionFlag.UnmanagedCode}
Private reflectionIndex As Integer = 0
Public Sub New()
ResetIndex()
End Sub 'New
Public Sub ResetIndex()
reflectionIndex = 0
End Sub 'ResetIndex
' CreateSecurity creates a SecurityPermission object.
Public Function CreateSecurity(ByRef SecurityPerm As SecurityPermission, _
ByRef Security As SecurityPermissionFlag) As Boolean
If reflectionIndex >= mySecurity.Length Then
SecurityPerm = New SecurityPermission(PermissionState.None)
Security = SecurityPermissionFlag.NoFlags
reflectionIndex &= 1
Return False
End If
Security = mySecurity(reflectionIndex)
reflectionIndex = reflectionIndex + 1
Try
SecurityPerm = New SecurityPermission(Security)
Return True
Catch e As Exception
Console.WriteLine(("Cannot create SecurityPermission: " & Security & " " & e.ToString()))
SecurityPerm = New SecurityPermission(PermissionState.None)
Security = SecurityPermissionFlag.NoFlags
Return True
End Try
End Function 'CreateSecurity
' End of SecurityGenerator.
[C#]
// This sample demonstrates the IsSubsetOf, Union, Intersect, Copy, ToXml and FromXml methods
// of the SecurityPermission Class.
using System;
using System.Security;
using System.Security.Permissions;
[assembly:CLSCompliant(true)]
public class SecurityPermissionDemo
{
// IsSubsetOf determines whether the current permission is a subset of the specified permission.
private bool IsSubsetOfDemo()
{
bool returnValue = true;
SecurityPermissionFlag Security1,Security2;
SecurityPermission SecurityPerm1,SecurityPerm2;
SecurityGenerator SecurityGen1 = new SecurityGenerator();
SecurityGenerator SecurityGen2 = new SecurityGenerator();
SecurityGen1.ResetIndex();
while(SecurityGen1.CreateSecurity(out SecurityPerm1, out Security1))
{
if(SecurityPerm1 == null) continue;
SecurityGen2.ResetIndex();
Console.WriteLine("********************************************************\n");
while(SecurityGen2.CreateSecurity(out SecurityPerm2, out Security2))
{
if(SecurityPerm2 == null) continue;
try
{
if (SecurityPerm1.IsSubsetOf(SecurityPerm2))
{
Console.WriteLine(SecurityPerm1.Flags + " is a subset of " +
SecurityPerm2.Flags);
}
else
{
Console.WriteLine(SecurityPerm1.Flags + " is not a subset of " +
SecurityPerm2.Flags);
}
}
catch(Exception e)
{
Console.WriteLine("An exception was thrown for subset :" + SecurityPerm1 + "\n" +
SecurityPerm2 +"\n" + e);
returnValue=false;
}
}
}
return returnValue;
}
// Union creates a new permission that is the union of the current permission and the specified permission.
private bool UnionDemo()
{
bool returnValue = true;
SecurityPermissionFlag Security1,Security2;
SecurityPermission SecurityPerm1,SecurityPerm2;
IPermission SecurityPerm3;
SecurityGenerator SecurityGen1 = new SecurityGenerator();
SecurityGenerator SecurityGen2 = new SecurityGenerator();
SecurityGen1.ResetIndex();
while(SecurityGen1.CreateSecurity(out SecurityPerm1, out Security1))
{
if(SecurityPerm1 == null) continue;
Console.WriteLine("**********************************************************\n");
SecurityGen2.ResetIndex();
while(SecurityGen2.CreateSecurity(out SecurityPerm2, out Security2))
{
if(SecurityPerm2 == null) continue;
SecurityPerm3 = (SecurityPermission)SecurityPerm1.Union(SecurityPerm2);
SecurityPerm3 = SecurityPerm1.Union(SecurityPerm2);
if(SecurityPerm3 == null)
{
Console.WriteLine("The union of " + Security1 + " and " + Security2 + " is null." );
}
else
{
Console.WriteLine("The union of " + SecurityPerm1.Flags + " and " +
SecurityPerm2.Flags + " = " +
((SecurityPermission)SecurityPerm3).Flags.ToString());
}
}
}
return returnValue;
}
// Intersect creates and returns a new permission that is the intersection of the current
// permission and the permission specified.
private bool IntersectDemo()
{
bool returnValue = true;
SecurityPermissionFlag Security1,Security2;
SecurityPermission SecurityPerm1,SecurityPerm2,SecurityPerm3;
SecurityGenerator SecurityGen1 = new SecurityGenerator();
SecurityGenerator SecurityGen2 = new SecurityGenerator();
SecurityGen1.ResetIndex();
while(SecurityGen1.CreateSecurity(out SecurityPerm1, out Security1))
{
if(SecurityPerm1 == null) continue;
Console.WriteLine("**********************************************************\n");
SecurityGen2.ResetIndex();
while(SecurityGen2.CreateSecurity(out SecurityPerm2, out Security2))
{
if(SecurityPerm2 == null) continue;
SecurityPerm3 = (SecurityPermission)SecurityPerm1.Intersect(SecurityPerm2);
if (SecurityPerm3 != null)
{
Console.WriteLine("The intersection of " + Security1 + " and " + Security2 + " = " +
((SecurityPermission)SecurityPerm3).Flags.ToString());
}
else
{
Console.WriteLine("The intersection of " + Security1 + " and " + Security2 + " is null." );
}
}
}
return returnValue;
}
//Copy creates and returns an identical copy of the current permission.
private bool CopyDemo()
{
bool returnValue = true;
SecurityPermissionFlag Security1;
SecurityPermission SecurityPerm1,SecurityPerm2;
SecurityGenerator SecurityGen1 = new SecurityGenerator();
SecurityGenerator SecurityGen2 = new SecurityGenerator();
SecurityGen1.ResetIndex();
while(SecurityGen1.CreateSecurity(out SecurityPerm1, out Security1))
{
if(SecurityPerm1 == null) continue;
SecurityGen2.ResetIndex();
Console.WriteLine("********************************************************\n");
try
{
SecurityPerm2 = (SecurityPermission)SecurityPerm1.Copy();
Console.WriteLine("Result of copy = " + SecurityPerm2.ToString());
}
catch(Exception e)
{
Console.WriteLine("Copy failed :" + SecurityPerm1.ToString() + e);
continue;
}
}
return returnValue;
}
// ToXml creates an XML encoding of the permission and its current state;
// FromXml reconstructs a permission with the specified state from the XML encoding.
private bool ToFromXmlDemo()
{
bool returnValue = true;
SecurityPermissionFlag Security1;
SecurityPermission SecurityPerm1,SecurityPerm2;
SecurityGenerator SecurityGen1 = new SecurityGenerator();
SecurityGenerator SecurityGen2 = new SecurityGenerator();
SecurityGen1.ResetIndex();
while(SecurityGen1.CreateSecurity(out SecurityPerm1, out Security1))
{
if(SecurityPerm1 == null) continue;
Console.WriteLine("********************************************************\n");
SecurityGen2.ResetIndex();
try
{
SecurityPerm2= new SecurityPermission(PermissionState.None);
SecurityPerm2.FromXml(SecurityPerm1.ToXml());
Console.WriteLine("Result of ToFromXml = " +
SecurityPerm2.ToString());
}
catch(Exception e)
{
Console.WriteLine("ToFromXml failed :" + SecurityPerm1.ToString() + e);
continue;
}
}
return returnValue;
}
// Invoke all demos.
public bool runDemo()
{
bool returnCode = true;
bool tempReturnCode;
// Call the IsSubsetOf demo.
tempReturnCode= IsSubsetOfDemo();
if(tempReturnCode)Console.Out.WriteLine("IsSubsetOf demo completed successfully.");
else Console.Out.WriteLine("IsSubsetOf demo failed.");
returnCode=tempReturnCode && returnCode;
// Call the Union demo.
tempReturnCode= UnionDemo();
if(tempReturnCode)Console.Out.WriteLine("Union demo completed successfully.");
else Console.Out.WriteLine("Union demo failed.");
returnCode=tempReturnCode && returnCode;
// Call the Intersect demo.
tempReturnCode= IntersectDemo();
if(tempReturnCode)Console.Out.WriteLine("Intersect demo completed successfully.");
else Console.Out.WriteLine("Intersect demo failed.");
returnCode=tempReturnCode && returnCode;
// Call the Copy demo.
tempReturnCode= CopyDemo();
if(tempReturnCode)Console.Out.WriteLine("Copy demo completed successfully.");
else Console.Out.WriteLine("Copy demo failed.");
returnCode=tempReturnCode && returnCode;
// Call the ToFromXml demo.
tempReturnCode= ToFromXmlDemo();
if(tempReturnCode)Console.Out.WriteLine("ToFromXml demo completed successfully.");
else Console.Out.WriteLine("ToFromXml demo failed.");
returnCode=tempReturnCode && returnCode;
return ( returnCode );
}
// Test harness.
public static void Main(String[] args)
{
try
{
SecurityPermissionDemo democase = new SecurityPermissionDemo();
bool returnCode = democase.runDemo();
if (returnCode)
{
Console.Out.WriteLine("SecurityPermission demo completed successfully.");
Console.Out.WriteLine("Press the Enter key to exit.");
string consoleInput = Console.ReadLine();
System.Environment.ExitCode = 100;
}
else
{
Console.Out.WriteLine("SecurityPermission demo failed.");
Console.Out.WriteLine("Press the Enter key to exit.");
string consoleInput = Console.ReadLine();
System.Environment.ExitCode = 101;
}
}
catch(Exception e)
{
Console.Out.WriteLine("SecurityPermission demo failed.");
Console.WriteLine(e.ToString());
Console.Out.WriteLine("Press the Enter key to exit.");
string consoleInput = Console.ReadLine();
System.Environment.ExitCode = 101;
}
}
}
// This class generates SecurityPermission objects.
internal class SecurityGenerator
{
private SecurityPermissionFlag[] mySecurity =
{SecurityPermissionFlag.AllFlags,
SecurityPermissionFlag.Assertion,
SecurityPermissionFlag.ControlAppDomain,
SecurityPermissionFlag.ControlDomainPolicy,
SecurityPermissionFlag.ControlEvidence,
SecurityPermissionFlag.ControlPolicy,
SecurityPermissionFlag.ControlPrincipal,
SecurityPermissionFlag.ControlThread,
SecurityPermissionFlag.Execution,
SecurityPermissionFlag.Infrastructure,
SecurityPermissionFlag.NoFlags,
SecurityPermissionFlag.RemotingConfiguration,
SecurityPermissionFlag.SerializationFormatter,
SecurityPermissionFlag.SkipVerification,
SecurityPermissionFlag.UnmanagedCode};
private int reflectionIndex = 0;
public SecurityGenerator()
{
ResetIndex();
}
public void ResetIndex()
{
reflectionIndex = 0;
}
// CreateSecurity creates a SecurityPermission object.
public bool CreateSecurity(out SecurityPermission SecurityPerm, out SecurityPermissionFlag Security)
{
if(reflectionIndex >= mySecurity.Length)
{
SecurityPerm = new SecurityPermission(PermissionState.None);
Security=SecurityPermissionFlag.NoFlags;
reflectionIndex++;
return false;
}
Security = mySecurity[reflectionIndex++];
try
{
SecurityPerm = new SecurityPermission(Security);
return true;
}
catch(Exception e)
{
Console.WriteLine("Cannot create SecurityPermission: " + Security +" "+e);
SecurityPerm = new SecurityPermission(PermissionState.None);
Security=SecurityPermissionFlag.NoFlags;
return true;
}
}
} // End of SecurityGenerator.
[C++]
// This sample demonstrates the IsSubsetOf, Union, Intersect, Copy, ToXml and FromXml methods
// of the SecurityPermission Class.
#using <mscorlib.dll>
using namespace System;
using namespace System::Security;
using namespace System::Security::Permissions;
using namespace System::Runtime::InteropServices;
[assembly:CLSCompliant(true)];
// This class generates SecurityPermission objects.
private __gc class SecurityGenerator
{
private:
SecurityPermissionFlag mySecurity[];
int reflectionIndex;
public:
SecurityGenerator()
{
SecurityPermissionFlag temp[] =
{SecurityPermissionFlag::AllFlags,
SecurityPermissionFlag::Assertion,
SecurityPermissionFlag::ControlAppDomain,
SecurityPermissionFlag::ControlDomainPolicy,
SecurityPermissionFlag::ControlEvidence,
SecurityPermissionFlag::ControlPolicy,
SecurityPermissionFlag::ControlPrincipal,
SecurityPermissionFlag::ControlThread,
SecurityPermissionFlag::Execution,
SecurityPermissionFlag::Infrastructure,
SecurityPermissionFlag::NoFlags,
SecurityPermissionFlag::RemotingConfiguration,
SecurityPermissionFlag::SerializationFormatter,
SecurityPermissionFlag::SkipVerification,
SecurityPermissionFlag::UnmanagedCode};
mySecurity = temp;
reflectionIndex = 0;
ResetIndex();
}
void ResetIndex()
{
reflectionIndex = 0;
}
// CreateSecurity creates a SecurityPermission object.
bool CreateSecurity([Out] SecurityPermission** SecurityPerm, [Out] SecurityPermissionFlag* Security)
{
if(reflectionIndex >= mySecurity->Length)
{
*SecurityPerm = new SecurityPermission(PermissionState::None);
*Security=SecurityPermissionFlag::NoFlags;
reflectionIndex++;
return false;
}
*Security = mySecurity[reflectionIndex++];
try
{
*SecurityPerm = new SecurityPermission(*Security);
return true;
}
catch(Exception* e)
{
Console::WriteLine(S"Cannot create SecurityPermission: {0} {1}", __box(*Security), e);
*SecurityPerm = new SecurityPermission(PermissionState::None);
*Security=SecurityPermissionFlag::NoFlags;
return true;
}
}
}; // End of SecurityGenerator.
public __gc class SecurityPermissionDemo
{
// IsSubsetOf determines whether the current permission is a subset of the specified permission.
private:
bool IsSubsetOfDemo()
{
bool returnValue = true;
SecurityPermissionFlag Security1,Security2;
SecurityPermission* SecurityPerm1;
SecurityPermission* SecurityPerm2;
SecurityGenerator* SecurityGen1 = new SecurityGenerator();
SecurityGenerator* SecurityGen2 = new SecurityGenerator();
SecurityGen1->ResetIndex();
while(SecurityGen1->CreateSecurity(&SecurityPerm1, &Security1))
{
if(SecurityPerm1 == 0) continue;
SecurityGen2->ResetIndex();
Console::WriteLine(S"********************************************************\n");
while(SecurityGen2->CreateSecurity(&SecurityPerm2, &Security2))
{
if(SecurityPerm2 == 0) continue;
try
{
if (SecurityPerm1->IsSubsetOf(SecurityPerm2))
{
Console::WriteLine(S"{0} is a subset of {1}",
__box(SecurityPerm1->Flags), __box(SecurityPerm2->Flags));
}
else
{
Console::WriteLine(S"{0} is not a subset of {1}",
__box(SecurityPerm1->Flags), __box(SecurityPerm2->Flags));
}
}
catch(Exception* e)
{
Console::WriteLine(S"An exception was thrown for subset :{0}\n{1}\n{2}",
SecurityPerm1, SecurityPerm2, e);
returnValue=false;
}
}
}
return returnValue;
}
// Union creates a new permission that is the union of the current permission and the specified permission.
bool UnionDemo()
{
bool returnValue = true;
SecurityPermissionFlag Security1,Security2;
SecurityPermission* SecurityPerm1;
SecurityPermission* SecurityPerm2;
IPermission* SecurityPerm3;
SecurityGenerator* SecurityGen1 = new SecurityGenerator();
SecurityGenerator* SecurityGen2 = new SecurityGenerator();
SecurityGen1->ResetIndex();
while(SecurityGen1->CreateSecurity(&SecurityPerm1, &Security1))
{
if(SecurityPerm1 == 0) continue;
Console::WriteLine(S"**********************************************************\n");
SecurityGen2->ResetIndex();
while(SecurityGen2->CreateSecurity(&SecurityPerm2, &Security2))
{
if(SecurityPerm2 == 0) continue;
SecurityPerm3 = dynamic_cast<SecurityPermission*>(SecurityPerm1->Union(SecurityPerm2));
SecurityPerm3 = SecurityPerm1->Union(SecurityPerm2);
if(SecurityPerm3 == 0)
{
Console::WriteLine(S"The union of {0} and {1} is null.", __box(Security1), __box(Security2));
}
else
{
Console::WriteLine(S"The union of {0} and {1} = {2}",
__box(SecurityPerm1->Flags), __box(SecurityPerm2->Flags),
__box((dynamic_cast<SecurityPermission*>(SecurityPerm3))->Flags));
}
}
}
return returnValue;
}
// Intersect creates and returns a new permission that is the intersection of the current
// permission and the permission specified.
bool IntersectDemo()
{
bool returnValue = true;
SecurityPermissionFlag Security1,Security2;
SecurityPermission* SecurityPerm1;
SecurityPermission* SecurityPerm2;
SecurityPermission* SecurityPerm3;
SecurityGenerator* SecurityGen1 = new SecurityGenerator();
SecurityGenerator* SecurityGen2 = new SecurityGenerator();
SecurityGen1->ResetIndex();
while(SecurityGen1->CreateSecurity(&SecurityPerm1, &Security1))
{
if(SecurityPerm1 == 0) continue;
Console::WriteLine(S"**********************************************************\n");
SecurityGen2->ResetIndex();
while(SecurityGen2->CreateSecurity(&SecurityPerm2, &Security2))
{
if(SecurityPerm2 == 0) continue;
SecurityPerm3 = dynamic_cast<SecurityPermission*>(SecurityPerm1->Intersect(SecurityPerm2));
if (SecurityPerm3 != 0)
{
Console::WriteLine(S"The intersection of {0} and {1} = {2}",
__box(Security1), __box(Security2),
__box((dynamic_cast<SecurityPermission*>(SecurityPerm3))->Flags));
}
else
{
Console::WriteLine(S"The intersection of {0} and {1} is null.", __box(Security1), __box(Security2));
}
}
}
return returnValue;
}
//Copy creates and returns an identical copy of the current permission.
bool CopyDemo()
{
bool returnValue = true;
SecurityPermissionFlag Security1;
SecurityPermission* SecurityPerm1;
SecurityPermission* SecurityPerm2;
SecurityGenerator* SecurityGen1 = new SecurityGenerator();
SecurityGenerator* SecurityGen2 = new SecurityGenerator();
SecurityGen1->ResetIndex();
while(SecurityGen1->CreateSecurity(&SecurityPerm1, &Security1))
{
if(SecurityPerm1 == 0) continue;
SecurityGen2->ResetIndex();
Console::WriteLine(S"********************************************************\n");
try
{
SecurityPerm2 = dynamic_cast<SecurityPermission*>(SecurityPerm1->Copy());
Console::WriteLine(S"Result of copy = {0}", SecurityPerm2);
}
catch(Exception* e)
{
Console::WriteLine(S"Copy failed :{0}{1}", SecurityPerm1, e);
continue;
}
}
return returnValue;
}
// ToXml creates an XML encoding of the permission and its current state;
// FromXml reconstructs a permission with the specified state from the XML encoding.
bool ToFromXmlDemo()
{
bool returnValue = true;
SecurityPermissionFlag Security1;
SecurityPermission* SecurityPerm1;
SecurityPermission* SecurityPerm2;
SecurityGenerator* SecurityGen1 = new SecurityGenerator();
SecurityGenerator* SecurityGen2 = new SecurityGenerator();
SecurityGen1->ResetIndex();
while(SecurityGen1->CreateSecurity(&SecurityPerm1, &Security1))
{
if(SecurityPerm1 == 0) continue;
Console::WriteLine(S"********************************************************\n");
SecurityGen2->ResetIndex();
try
{
SecurityPerm2= new SecurityPermission(PermissionState::None);
SecurityPerm2->FromXml(SecurityPerm1->ToXml());
Console::WriteLine(S"Result of ToFromXml = {0}", SecurityPerm2);
}
catch(Exception* e)
{
Console::WriteLine(S"ToFromXml failed :{0}{1}", SecurityPerm1, e);
continue;
}
}
return returnValue;
}
// Invoke all demos.
public:
bool runDemo()
{
bool returnCode = true;
bool tempReturnCode;
// Call the IsSubsetOf demo.
tempReturnCode= IsSubsetOfDemo();
if(tempReturnCode)Console::Out->WriteLine(S"IsSubsetOf demo completed successfully.");
else Console::Out->WriteLine(S"IsSubsetOf demo failed.");
returnCode=tempReturnCode && returnCode;
// Call the Union demo.
tempReturnCode= UnionDemo();
if(tempReturnCode)Console::Out->WriteLine(S"Union demo completed successfully.");
else Console::Out->WriteLine(S"Union demo failed.");
returnCode=tempReturnCode && returnCode;
// Call the Intersect demo.
tempReturnCode= IntersectDemo();
if(tempReturnCode)Console::Out->WriteLine(S"Intersect demo completed successfully.");
else Console::Out->WriteLine(S"Intersect demo failed.");
returnCode=tempReturnCode && returnCode;
// Call the Copy demo.
tempReturnCode= CopyDemo();
if(tempReturnCode)Console::Out->WriteLine(S"Copy demo completed successfully.");
else Console::Out->WriteLine(S"Copy demo failed.");
returnCode=tempReturnCode && returnCode;
// Call the ToFromXml demo.
tempReturnCode= ToFromXmlDemo();
if(tempReturnCode)Console::Out->WriteLine(S"ToFromXml demo completed successfully.");
else Console::Out->WriteLine(S"ToFromXml demo failed.");
returnCode=tempReturnCode && returnCode;
return ( returnCode );
}
};
// Test harness.
int main()
{
try
{
SecurityPermissionDemo* democase = new SecurityPermissionDemo();
bool returnCode = democase->runDemo();
if (returnCode)
{
Console::Out->WriteLine(S"SecurityPermission demo completed successfully.");
Console::Out->WriteLine(S"Press the Enter key to exit.");
String* consoleInput = Console::ReadLine();
System::Environment::ExitCode = 100;
}
else
{
Console::Out->WriteLine(S"SecurityPermission demo failed.");
Console::Out->WriteLine(S"Press the Enter key to exit.");
String* consoleInput = Console::ReadLine();
System::Environment::ExitCode = 101;
}
}
catch(Exception* e)
{
Console::Out->WriteLine(S"SecurityPermission demo failed.");
Console::WriteLine(e);
Console::Out->WriteLine(S"Press the Enter key to exit.");
String* consoleInput = Console::ReadLine();
System::Environment::ExitCode = 101;
}
}
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をクリックします。
必要条件
名前空間: System.Security.Permissions
プラットフォーム: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 ファミリ
アセンブリ: Mscorlib (Mscorlib.dll 内)
参照
SecurityPermission メンバ | System.Security.Permissions 名前空間 | アクセス許可 | アクセス許可の要求 | SecurityPermissionAttribute | SecurityPermissionFlag