PublisherIdentityPermission Class
Represents the identity of a software publisher. This class cannot be inherited.
For a list of all members of this type, see PublisherIdentityPermission Members.
System.Object
System.Security.CodeAccessPermission
System.Security.Permissions.PublisherIdentityPermission
[Visual Basic] <Serializable> NotInheritable Public Class PublisherIdentityPermission Inherits CodeAccessPermission [C#] [Serializable] public sealed class PublisherIdentityPermission : CodeAccessPermission [C++] [Serializable] public __gc __sealed class PublisherIdentityPermission : public CodeAccessPermission [JScript] public Serializable class PublisherIdentityPermission extends CodeAccessPermission
Thread Safety
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
Example
[Visual Basic] ' This sample demonstrates the IsSubsetOf, Union, Intersect, Copy, ToXml and FromXml methods ' of The PublisherIdentityPermission class. ' To execute this sample you will need two certification files, MyCert1.cer and MyCert2.cer. ' The certification files can be created using the Certification Creation Tool, MakeCert.exe. Imports System Imports System.Security Imports System.Security.Permissions Imports System.Security.Cryptography.X509Certificates Imports System.IO Imports Microsoft.VisualBasic <Assembly: CLSCompliant(True)> Public Class PublisherIdentityDemo ' IsSubsetOf determines whether the current permission is a subset of the specified permission. Private Function IsSubsetOfDemo() As Boolean Dim retCode As Boolean = True Dim publisher1, publisher2 As [String] Dim pubIdPerm1, pubIdPerm2 As PublisherIdentityPermission Dim pubGen1 As New PublisherGenerator() Dim pubGen2 As New PublisherGenerator() pubGen1.ResetIndex() While pubGen1.CreatePublisher(pubIdPerm1, publisher1) If pubIdPerm1 Is Nothing Then GoTo ContinueWhile1 End If pubGen2.ResetIndex() While pubGen2.CreatePublisher(pubIdPerm2, publisher2) If pubIdPerm2 Is Nothing Then GoTo ContinueWhile2 End If Try ' Check for whether either of the publishers is null. ' An exception will be thrown if either is null. If publisher1 <> "null" AndAlso publisher2 <> "null" Then If pubIdPerm1.IsSubsetOf(pubIdPerm2) Then Console.WriteLine((pubIdPerm1.Certificate.GetName() & " is a subset of " & pubIdPerm2.Certificate.GetName() & ControlChars.Lf)) Else Console.WriteLine((pubIdPerm1.Certificate.GetName() & " is not a subset of " & pubIdPerm2.Certificate.GetName() & ControlChars.Lf)) End If End If Catch Console.WriteLine(("An exception was thrown for " & publisher1 & " is a subset of " & publisher2 & ControlChars.Lf & ".")) retCode = False End Try ContinueWhile2: End While ContinueWhile1: End While Return retCode 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 retCode As Boolean = True Dim publisher1, publisher2 As [String] Dim pubIdPerm1, pubIdPerm2 As PublisherIdentityPermission Dim p3 As IPermission Dim pubGen1 As New PublisherGenerator() Dim pubGen2 As New PublisherGenerator() pubGen1.ResetIndex() While pubGen1.CreatePublisher(pubIdPerm1, publisher1) If pubIdPerm1 Is Nothing Or pubIdPerm1.Certificate Is Nothing Then GoTo ContinueWhile1 End If pubGen2.ResetIndex() While pubGen2.CreatePublisher(pubIdPerm2, publisher2) If pubIdPerm2 Is Nothing Or pubIdPerm2.Certificate Is Nothing Then GoTo ContinueWhile2 End If p3 = pubIdPerm1.Union(pubIdPerm2) If Not (p3 Is Nothing) Then Console.WriteLine(("The union of " & pubIdPerm1.Certificate.GetName() & " and " & pubIdPerm2.Certificate.GetName() & " = " & CType(p3, PublisherIdentityPermission).Certificate.GetName())) Else Console.WriteLine(("The union of " & pubIdPerm1.Certificate.GetName() & " and " & pubIdPerm2.Certificate.GetName() & " = null.")) End If ContinueWhile2: End While ContinueWhile1: End While Return retCode 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 retCode As Boolean = True Dim publisher1, publisher2 As [String] Dim pubIdPerm1, pubIdPerm2, p3 As PublisherIdentityPermission Dim pubGen1 As New PublisherGenerator() Dim pubGen2 As New PublisherGenerator() pubGen1.ResetIndex() While pubGen1.CreatePublisher(pubIdPerm1, publisher1) If pubIdPerm1 Is Nothing Or pubIdPerm1.Certificate Is Nothing Then GoTo ContinueWhile1 End If pubGen2.ResetIndex() While pubGen2.CreatePublisher(pubIdPerm2, publisher2) If pubIdPerm2 Is Nothing Or pubIdPerm2.Certificate Is Nothing Then GoTo ContinueWhile2 End If p3 = CType(pubIdPerm1.Intersect(pubIdPerm2), PublisherIdentityPermission) If Not (p3 Is Nothing) AndAlso Not (p3.Certificate Is Nothing) Then Console.WriteLine(("The intersection of " & pubIdPerm1.Certificate.GetName() & " and " & pubIdPerm2.Certificate.GetName() & " = " & CType(p3, PublisherIdentityPermission).Certificate.GetName())) Else Console.WriteLine(("The intersection of " & pubIdPerm1.Certificate.GetName() & " and " & pubIdPerm2.Certificate.GetName() & " is null.")) End If ContinueWhile2: End While ContinueWhile1: End While Return retCode End Function 'IntersectDemo '//Copy creates and returns an identical copy of the current permission. Private Function CopyDemo() As Boolean Dim retCode As Boolean = True Dim publisher1 As [String] Dim pubIdPerm1, pubIdPerm2 As PublisherIdentityPermission Dim pubGen1 As New PublisherGenerator() Dim pubGen2 As New PublisherGenerator() pubGen1.ResetIndex() While pubGen1.CreatePublisher(pubIdPerm1, publisher1) If pubIdPerm1 Is Nothing Then GoTo ContinueWhile1 End If pubGen2.ResetIndex() Try pubIdPerm2 = CType(pubIdPerm1.Copy(), PublisherIdentityPermission) If Not (pubIdPerm2 Is Nothing) Then Console.WriteLine(("Result of copy = " & pubIdPerm2.ToString() & ControlChars.Lf)) Else Console.WriteLine("Result of copy is null. " & ControlChars.Lf) End If Catch e As Exception Console.WriteLine(("Copy failed :" & pubIdPerm1.ToString() & e.ToString())) GoTo ContinueWhile1 End Try ContinueWhile1: End While Return retCode 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 retCode As Boolean = True Dim publisher1 As [String] Dim pubIdPerm1, pubIdPerm2 As PublisherIdentityPermission Dim pubGen1 As New PublisherGenerator() Dim pubGen2 As New PublisherGenerator() pubGen1.ResetIndex() While pubGen1.CreatePublisher(pubIdPerm1, publisher1) If pubIdPerm1 Is Nothing Then GoTo ContinueWhile1 End If pubGen2.ResetIndex() Try pubIdPerm2 = New PublisherIdentityPermission(PermissionState.None) pubIdPerm2.FromXml(pubIdPerm1.ToXml()) Console.WriteLine(("Result of ToFromXml = " & pubIdPerm2.ToString() & ControlChars.Lf)) Catch e As Exception Console.WriteLine(("ToFromXml failed :" & pubIdPerm1.ToString() & e.ToString())) GoTo ContinueWhile1 End Try ContinueWhile1: End While Return retCode End Function 'ToFromXmlDemo ' Invoke all demos. Public Function RunDemo() As Boolean Dim ret As Boolean = True Dim retTmp As Boolean ' Call the IsSubsetOf demo. retTmp = IsSubsetOfDemo() If retTmp Then Console.Out.WriteLine("IsSubsetOf demo completed successfully.") Else Console.Out.WriteLine("IsSubsetOf demo failed.") End If ret = retTmp AndAlso ret Console.WriteLine("************************************************************************") ' Call the Union demo. retTmp = UnionDemo() If retTmp Then Console.Out.WriteLine("Union demo completed successfully.") Else Console.Out.WriteLine("Union demo failed.") End If ret = retTmp AndAlso ret Console.WriteLine("************************************************************************") ' Call the Intersect demo. retTmp = IntersectDemo() If retTmp Then Console.Out.WriteLine("Intersect demo completed successfully.") Else Console.Out.WriteLine("Intersect demo failed.") End If ret = retTmp AndAlso ret Console.WriteLine("************************************************************************") ' Call the Copy demo. retTmp = CopyDemo() If retTmp Then Console.Out.WriteLine("Copy demo completed successfully. ") Else Console.Out.WriteLine("Copy demo failed.") End If ret = retTmp AndAlso ret Console.WriteLine("************************************************************************") ' Call the ToFromXml demo retTmp = ToFromXmlDemo() If retTmp Then Console.Out.WriteLine("ToFromXml demo completed successfully.") Else Console.Out.WriteLine("ToFromXml demo failed.") End If ret = retTmp AndAlso ret Console.WriteLine("************************************************************************") Return ret End Function 'RunDemo ' Test harness. Public Overloads Shared Sub Main(ByVal args() As [String]) Try Dim democase As New PublisherIdentityDemo() Dim ret As Boolean = democase.RunDemo() If ret Then Console.Out.WriteLine("The PublisherIdentityPermission 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("The PublisherIdentityPermission 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("The PublisherIdentityPermission 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 'PublisherIdentityDemo ' This class generates PublisherIdentityPermission objects. Friend Class PublisherGenerator Private publisherCertificate(1) As X509Certificate Private publisherIndex As Integer = 0 Public Sub New() Try Dim fs1 As New FileStream("MyCert1.cer", FileMode.Open) Dim certSBytes1(Fix(fs1.Length)) As [Byte] fs1.Read(certSBytes1, 0, Fix(fs1.Length)) publisherCertificate(0) = New X509Certificate(certSBytes1) fs1.Close() Dim fs2 As New FileStream("MyCert2.cer", FileMode.Open) Dim certSBytes2(Fix(fs2.Length)) As [Byte] fs2.Read(certSBytes2, 0, Fix(fs2.Length)) publisherCertificate(1) = New X509Certificate(certSBytes2) fs2.Close() ResetIndex() Catch e As Exception Console.WriteLine(("Cannot create certificate : " & e.ToString())) Console.Out.WriteLine("PublisherIdentityPermission demo failed.") System.Environment.ExitCode = 101 End Try End Sub 'New Public Sub ResetIndex() publisherIndex = 0 End Sub 'ResetIndex ' CreatePublisher creates a PublisherIdentityPermission. Public Function CreatePublisher(ByRef publisherPerm As PublisherIdentityPermission, ByRef publisher As [String]) As Boolean If publisherIndex >= publisherCertificate.Length & 1 Then publisherPerm = Nothing publisher = "null" Return False End If If publisherIndex >= publisherCertificate.Length Then publisherPerm = New PublisherIdentityPermission(PermissionState.None) publisher = "null" publisherIndex &= 1 Return True End If Dim cert As X509Certificate = publisherCertificate(publisherIndex) publisherIndex = publisherIndex + 1 publisher = cert.ToString() Try publisherPerm = New PublisherIdentityPermission(cert) Return True Catch e As Exception Console.WriteLine(("Cannot create PublisherIdentityPermission: " & publisher & " " & e.ToString())) publisherPerm = New PublisherIdentityPermission(PermissionState.None) publisher = "null" Return True End Try End Function 'CreatePublisher End Class 'PublisherGenerator ' End of PublisherGenerator. [C#] // This sample demonstrates the IsSubsetOf, Union, Intersect, Copy, ToXml and FromXml methods // of The PublisherIdentityPermission class. // To execute this sample you will need two certification files, MyCert1.cer and MyCert2.cer. // The certification files can be created using the Certification Creation Tool, MakeCert.exe. using System; using System.Security; using System.Security.Permissions; using System.Security.Cryptography.X509Certificates; using System.IO; [assembly:CLSCompliant(true)] public class PublisherIdentityDemo { // IsSubsetOf determines whether the current permission is a subset of the specified permission. private bool IsSubsetOfDemo() { bool retCode = true; String publisher1,publisher2; PublisherIdentityPermission pubIdPerm1,pubIdPerm2; PublisherGenerator pubGen1 = new PublisherGenerator(); PublisherGenerator pubGen2 = new PublisherGenerator(); pubGen1.ResetIndex(); while(pubGen1.CreatePublisher(out pubIdPerm1, out publisher1)) { if(pubIdPerm1 == null) continue; pubGen2.ResetIndex(); while(pubGen2.CreatePublisher(out pubIdPerm2, out publisher2)) { if(pubIdPerm2 == null) continue; try { // Check for whether either of the publishers is null. // An exception will be thrown if either is null. if (publisher1 != "null" && publisher2 != "null") { if (pubIdPerm1.IsSubsetOf(pubIdPerm2)) { Console.WriteLine(pubIdPerm1.Certificate.GetName() + " is a subset of " + pubIdPerm2.Certificate.GetName() + "\n"); } else { Console.WriteLine(pubIdPerm1.Certificate.GetName() + " is not a subset of " + pubIdPerm2.Certificate.GetName() + "\n"); } } } catch { Console.WriteLine("An exception was thrown for " + publisher1 + " is a subset of " + publisher2 +"\n." ); retCode=false; } } } return retCode; } // Union creates a new permission that is the union of the current permission and the specified permission. private bool UnionDemo() { bool retCode = true; String publisher1,publisher2; PublisherIdentityPermission pubIdPerm1,pubIdPerm2; IPermission p3; PublisherGenerator pubGen1 = new PublisherGenerator(); PublisherGenerator pubGen2 = new PublisherGenerator(); pubGen1.ResetIndex(); while(pubGen1.CreatePublisher(out pubIdPerm1, out publisher1)) { if(pubIdPerm1 == null | pubIdPerm1.Certificate == null) continue; pubGen2.ResetIndex(); while(pubGen2.CreatePublisher(out pubIdPerm2, out publisher2)) { if(pubIdPerm2 == null | pubIdPerm2.Certificate == null) continue; p3 = pubIdPerm1.Union(pubIdPerm2); if(p3 != null) { Console.WriteLine("The union of " + pubIdPerm1.Certificate.GetName() + " and " + pubIdPerm2.Certificate.GetName() + " = " + ((PublisherIdentityPermission)p3).Certificate.GetName()); } else { Console.WriteLine ("The union of " + pubIdPerm1.Certificate.GetName() + " and " + pubIdPerm2.Certificate.GetName() + " = null."); } } } return retCode; } // Intersect creates and returns a new permission that is the intersection of the // current permission and the permission specified. private bool IntersectDemo() { bool retCode = true; String publisher1,publisher2; PublisherIdentityPermission pubIdPerm1,pubIdPerm2,p3; PublisherGenerator pubGen1 = new PublisherGenerator(); PublisherGenerator pubGen2 = new PublisherGenerator(); pubGen1.ResetIndex(); while(pubGen1.CreatePublisher(out pubIdPerm1, out publisher1)) { if(pubIdPerm1 == null | pubIdPerm1.Certificate == null) continue; pubGen2.ResetIndex(); while(pubGen2.CreatePublisher(out pubIdPerm2, out publisher2)) { if(pubIdPerm2 == null | pubIdPerm2.Certificate == null) continue; p3 = (PublisherIdentityPermission)pubIdPerm1.Intersect(pubIdPerm2); if (p3 != null && p3.Certificate != null) { Console.WriteLine("The intersection of " + pubIdPerm1.Certificate.GetName() + " and " + pubIdPerm2.Certificate.GetName() + " = " + ((PublisherIdentityPermission)p3).Certificate.GetName()); } else { Console.WriteLine("The intersection of " + pubIdPerm1.Certificate.GetName() + " and " + pubIdPerm2.Certificate.GetName() + " is null."); } } } return retCode; } ////Copy creates and returns an identical copy of the current permission. private bool CopyDemo() { bool retCode = true; String publisher1; PublisherIdentityPermission pubIdPerm1,pubIdPerm2; PublisherGenerator pubGen1 = new PublisherGenerator(); PublisherGenerator pubGen2 = new PublisherGenerator(); pubGen1.ResetIndex(); while(pubGen1.CreatePublisher(out pubIdPerm1, out publisher1)) { if(pubIdPerm1 == null) continue; pubGen2.ResetIndex(); try { pubIdPerm2 = (PublisherIdentityPermission)pubIdPerm1.Copy(); if (pubIdPerm2 != null) { Console.WriteLine("Result of copy = " + pubIdPerm2.ToString() + "\n"); } else { Console.WriteLine("Result of copy is null. \n"); } } catch(Exception e) { Console.WriteLine("Copy failed :" + pubIdPerm1.ToString() + e); continue; } } return retCode; } // 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 retCode = true; String publisher1; PublisherIdentityPermission pubIdPerm1,pubIdPerm2; PublisherGenerator pubGen1 = new PublisherGenerator(); PublisherGenerator pubGen2 = new PublisherGenerator(); pubGen1.ResetIndex(); while(pubGen1.CreatePublisher(out pubIdPerm1, out publisher1)) { if(pubIdPerm1 == null) continue; pubGen2.ResetIndex(); try { pubIdPerm2= new PublisherIdentityPermission(PermissionState.None); pubIdPerm2.FromXml(pubIdPerm1.ToXml()); Console.WriteLine("Result of ToFromXml = " +pubIdPerm2.ToString() + "\n"); } catch(Exception e) { Console.WriteLine("ToFromXml failed :" + pubIdPerm1.ToString() + e); continue; } } return retCode; } // Invoke all demos. public bool RunDemo() { bool ret=true; bool retTmp; // Call the IsSubsetOf demo. if(retTmp= IsSubsetOfDemo())Console.Out.WriteLine("IsSubsetOf demo completed successfully."); else Console.Out.WriteLine("IsSubsetOf demo failed."); ret=retTmp && ret; Console.WriteLine("************************************************************************"); // Call the Union demo. if(retTmp= UnionDemo())Console.Out.WriteLine("Union demo completed successfully."); else Console.Out.WriteLine("Union demo failed."); ret=retTmp && ret; Console.WriteLine("************************************************************************"); // Call the Intersect demo. if(retTmp= IntersectDemo())Console.Out.WriteLine("Intersect demo completed successfully."); else Console.Out.WriteLine("Intersect demo failed."); ret=retTmp && ret; Console.WriteLine("************************************************************************"); // Call the Copy demo. if(retTmp= CopyDemo())Console.Out.WriteLine("Copy demo completed successfully. "); else Console.Out.WriteLine("Copy demo failed."); ret=retTmp && ret; Console.WriteLine("************************************************************************"); // Call the ToFromXml demo if(retTmp= ToFromXmlDemo())Console.Out.WriteLine("ToFromXml demo completed successfully."); else Console.Out.WriteLine("ToFromXml demo failed."); ret=retTmp && ret; Console.WriteLine("************************************************************************"); return ret; } // Test harness. public static void Main(String[] args) { try { PublisherIdentityDemo democase = new PublisherIdentityDemo(); bool ret = democase.RunDemo(); if (ret) { Console.Out.WriteLine("The PublisherIdentityPermission demo completed successfully."); Console.Out.WriteLine("Press the Enter key to exit."); string consoleInput = Console.ReadLine(); System.Environment.ExitCode = 100; } else { Console.Out.WriteLine("The PublisherIdentityPermission 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("The PublisherIdentityPermission 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 PublisherIdentityPermission objects. internal class PublisherGenerator { private X509Certificate[] publisherCertificate = new X509Certificate[2]; private int publisherIndex = 0; public PublisherGenerator() { try { FileStream fs1 = new FileStream("MyCert1.cer",FileMode.Open); Byte[] certSBytes1 = new Byte[(int)fs1.Length]; fs1.Read(certSBytes1, 0, (int)fs1.Length); publisherCertificate[0] = new X509Certificate(certSBytes1); fs1.Close(); FileStream fs2 = new FileStream("MyCert2.cer",FileMode.Open); Byte[] certSBytes2 = new Byte[(int)fs2.Length]; fs2.Read(certSBytes2, 0, (int)fs2.Length); publisherCertificate[1] = new X509Certificate(certSBytes2); fs2.Close(); ResetIndex(); } catch(Exception e) { Console.WriteLine("Cannot create certificate : " +e); Console.Out.WriteLine("PublisherIdentityPermission demo failed."); System.Environment.ExitCode = 101; } } public void ResetIndex(){ publisherIndex = 0; } // CreatePublisher creates a PublisherIdentityPermission. public bool CreatePublisher(out PublisherIdentityPermission publisherPerm, out String publisher) { if(publisherIndex >= publisherCertificate.Length + 1) { publisherPerm = null; publisher = "null"; return false; } if(publisherIndex >= publisherCertificate.Length) { publisherPerm = new PublisherIdentityPermission(PermissionState.None); publisher="null"; publisherIndex++; return true; } X509Certificate cert = publisherCertificate[publisherIndex++]; publisher = cert.ToString(); try { publisherPerm = new PublisherIdentityPermission(cert); return true; } catch(Exception e) { Console.WriteLine("Cannot create PublisherIdentityPermission: " + publisher +" "+e); publisherPerm = new PublisherIdentityPermission(PermissionState.None); publisher="null"; return true; } } } // End of PublisherGenerator. [C++] // This sample demonstrates the IsSubsetOf, Union, Intersect, Copy, ToXml and FromXml methods // of The PublisherIdentityPermission class. // To execute this sample you will need two certification files, MyCert1.cer and MyCert2.cer. // The certification files can be created using the Certification Creation Tool, MakeCert.exe. #using <mscorlib.dll> using namespace System::Runtime::InteropServices; using namespace System; using namespace System::Security; using namespace System::Security::Permissions; using namespace System::Security::Cryptography::X509Certificates; using namespace System::IO; [assembly:CLSCompliant(true)]; // This class generates PublisherIdentityPermission objects. private __gc class PublisherGenerator { private: X509Certificate* publisherCertificate[]; int publisherIndex; public: PublisherGenerator() { publisherCertificate = new X509Certificate*[2]; try { FileStream* fs1 = new FileStream(S"MyCert1.cer",FileMode::Open); Byte certSBytes1[] = new Byte[(int)fs1->Length]; fs1->Read(certSBytes1, 0, (int)fs1->Length); publisherCertificate[0] = new X509Certificate(certSBytes1); fs1->Close(); FileStream* fs2 = new FileStream(S"MyCert2.cer",FileMode::Open); Byte certSBytes2[] = new Byte[(int)fs2->Length]; fs2->Read(certSBytes2, 0, (int)fs2->Length); publisherCertificate[1] = new X509Certificate(certSBytes2); fs2->Close(); ResetIndex(); } catch(Exception* e) { Console::WriteLine(S"Cannot create certificate : {0}", e); Console::WriteLine(S"PublisherIdentityPermission demo failed."); System::Environment::ExitCode = 101; } } void ResetIndex(){ publisherIndex = 0; } // CreatePublisher creates a PublisherIdentityPermission. public: bool CreatePublisher([Out]PublisherIdentityPermission** publisherPerm, [Out]String** publisher) { if(publisherIndex >= publisherCertificate->Length + 1) { *publisherPerm = 0; *publisher = S"null"; return false; } if(publisherIndex >= publisherCertificate->Length) { *publisherPerm = new PublisherIdentityPermission(PermissionState::None); *publisher=S"null"; publisherIndex++; return true; } X509Certificate* cert = publisherCertificate[publisherIndex++]; *publisher = cert->ToString(); try { *publisherPerm = new PublisherIdentityPermission(cert); return true; } catch(Exception* e) { Console::WriteLine(S"Cannot create PublisherIdentityPermission: {0} {1}", *publisher, e); *publisherPerm = new PublisherIdentityPermission(PermissionState::None); *publisher=S"null"; return true; } } }; // End of PublisherGenerator. // IsSubsetOf determines whether the current permission is a subset of the specified permission. bool IsSubsetOfDemo() { bool retCode = true; String* publisher1; String* publisher2; PublisherIdentityPermission* pubIdPerm1; PublisherIdentityPermission* pubIdPerm2; PublisherGenerator* pubGen1 = new PublisherGenerator(); PublisherGenerator* pubGen2 = new PublisherGenerator(); pubGen1->ResetIndex(); while(pubGen1->CreatePublisher(&pubIdPerm1, &publisher1)) { if(pubIdPerm1 == 0) continue; pubGen2->ResetIndex(); while(pubGen2->CreatePublisher(&pubIdPerm2, &publisher2)) { if(pubIdPerm2 == 0) continue; try { // Check for whether either of the publishers is null. // An exception will be thrown if either is null. if (!publisher1->Equals(S"null") && !publisher2->Equals(S"null")) { if (pubIdPerm1->IsSubsetOf(pubIdPerm2)) { Console::WriteLine(S"{0} is a subset of {1}\n", pubIdPerm1->Certificate->GetName(), pubIdPerm2->Certificate->GetName()); } else { Console::WriteLine(S"{0} is not a subset of {1}\n", pubIdPerm1->Certificate->GetName(), pubIdPerm2->Certificate->GetName()); } } } catch (Exception*) { Console::WriteLine(S"An exception was thrown for {0} is a subset of {1}\n.", publisher1, publisher2 ); retCode=false; } } } return retCode; } // Union creates a new permission that is the union of the current permission and the specified permission. bool UnionDemo() { bool retCode = true; String* publisher1; String* publisher2; PublisherIdentityPermission* pubIdPerm1; PublisherIdentityPermission* pubIdPerm2; IPermission* p3; PublisherGenerator* pubGen1 = new PublisherGenerator(); PublisherGenerator* pubGen2 = new PublisherGenerator(); pubGen1->ResetIndex(); while(pubGen1->CreatePublisher(&pubIdPerm1, &publisher1)) { if(pubIdPerm1 == 0 || pubIdPerm1->Certificate == 0) continue; pubGen2->ResetIndex(); while(pubGen2->CreatePublisher(&pubIdPerm2, &publisher2)) { if(pubIdPerm2 == 0 || pubIdPerm2->Certificate == 0) continue; p3 = pubIdPerm1->Union(pubIdPerm2); if(p3 != 0) { Console::WriteLine(S"The union of {0} and {1} = {2}", pubIdPerm1->Certificate->GetName(), pubIdPerm2->Certificate->GetName(), (dynamic_cast<PublisherIdentityPermission*>(p3))->Certificate->GetName()); } else { Console::WriteLine (S"The union of {0} and {1} = null.", pubIdPerm1->Certificate->GetName(), pubIdPerm2->Certificate->GetName()); } } } return retCode; } // Intersect creates and returns a new permission that is the intersection of the // current permission and the permission specified. bool IntersectDemo() { bool retCode = true; String* publisher1; String* publisher2; PublisherIdentityPermission* pubIdPerm1; PublisherIdentityPermission* pubIdPerm2; PublisherIdentityPermission* p3; PublisherGenerator* pubGen1 = new PublisherGenerator(); PublisherGenerator* pubGen2 = new PublisherGenerator(); pubGen1->ResetIndex(); while(pubGen1->CreatePublisher(&pubIdPerm1, &publisher1)) { if(pubIdPerm1 == 0 || pubIdPerm1->Certificate == 0) continue; pubGen2->ResetIndex(); while(pubGen2->CreatePublisher(&pubIdPerm2, &publisher2)) { if(pubIdPerm2 == 0 || pubIdPerm2->Certificate == 0) continue; p3 = dynamic_cast<PublisherIdentityPermission*>(pubIdPerm1->Intersect(pubIdPerm2)); if (p3 != 0 && p3->Certificate != 0) { Console::WriteLine(S"The intersection of {0} and {1} = {2}", pubIdPerm1->Certificate->GetName(), pubIdPerm2->Certificate->GetName(), (dynamic_cast<PublisherIdentityPermission*>(p3))->Certificate->GetName()); } else { Console::WriteLine(S"The intersection of {0} and {1} is null.", pubIdPerm1->Certificate->GetName(), pubIdPerm2->Certificate->GetName()); } } } return retCode; } ////Copy creates and returns an identical copy of the current permission. bool CopyDemo() { bool retCode = true; String* publisher1; PublisherIdentityPermission* pubIdPerm1; PublisherIdentityPermission* pubIdPerm2; PublisherGenerator* pubGen1 = new PublisherGenerator(); PublisherGenerator* pubGen2 = new PublisherGenerator(); pubGen1->ResetIndex(); while(pubGen1->CreatePublisher(&pubIdPerm1, &publisher1)) { if(pubIdPerm1 == 0) continue; pubGen2->ResetIndex(); try { pubIdPerm2 = dynamic_cast<PublisherIdentityPermission*>(pubIdPerm1->Copy()); if (pubIdPerm2 != 0) { Console::WriteLine(S"Result of copy = {0}\n", pubIdPerm2); } else { Console::WriteLine(S"Result of copy is null. \n"); } } catch(Exception* e) { Console::WriteLine(S"Copy failed :{0}{1}", pubIdPerm1, e); continue; } } return retCode; } // 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 retCode = true; String* publisher1; PublisherIdentityPermission* pubIdPerm1; PublisherIdentityPermission* pubIdPerm2; PublisherGenerator* pubGen1 = new PublisherGenerator(); PublisherGenerator* pubGen2 = new PublisherGenerator(); pubGen1->ResetIndex(); while(pubGen1->CreatePublisher(&pubIdPerm1, &publisher1)) { if(pubIdPerm1 == 0) continue; pubGen2->ResetIndex(); try { pubIdPerm2= new PublisherIdentityPermission(PermissionState::None); pubIdPerm2->FromXml(pubIdPerm1->ToXml()); Console::WriteLine(S"Result of ToFromXml = {0}\n", pubIdPerm2); } catch(Exception* e) { Console::WriteLine(S"ToFromXml failed :{0}{1}", pubIdPerm1, e); continue; } } return retCode; } // Invoke all demos. bool RunDemo() { bool ret=true; bool retTmp; // Call the IsSubsetOf demo. if(retTmp= IsSubsetOfDemo())Console::WriteLine(S"IsSubsetOf demo completed successfully."); else Console::WriteLine(S"IsSubsetOf demo failed."); ret=retTmp && ret; Console::WriteLine(S"************************************************************************"); // Call the Union demo. if(retTmp= UnionDemo())Console::WriteLine(S"Union demo completed successfully."); else Console::WriteLine(S"Union demo failed."); ret=retTmp && ret; Console::WriteLine(S"************************************************************************"); // Call the Intersect demo. if(retTmp= IntersectDemo())Console::WriteLine(S"Intersect demo completed successfully."); else Console::WriteLine(S"Intersect demo failed."); ret=retTmp && ret; Console::WriteLine(S"************************************************************************"); // Call the Copy demo. if(retTmp= CopyDemo())Console::WriteLine(S"Copy demo completed successfully. "); else Console::WriteLine(S"Copy demo failed."); ret=retTmp && ret; Console::WriteLine(S"************************************************************************"); // Call the ToFromXml demo if(retTmp= ToFromXmlDemo())Console::WriteLine(S"ToFromXml demo completed successfully."); else Console::WriteLine(S"ToFromXml demo failed."); ret=retTmp && ret; Console::WriteLine(S"************************************************************************"); return ret; } // Test harness. int main() { try { bool ret = RunDemo(); if (ret) { Console::WriteLine(S"The PublisherIdentityPermission demo completed successfully."); Console::WriteLine(S"Press the Enter key to exit."); Console::ReadLine(); System::Environment::ExitCode = 100; } else { Console::WriteLine(S"The PublisherIdentityPermission demo failed."); Console::WriteLine(S"Press the Enter key to exit."); Console::ReadLine(); System::Environment::ExitCode = 101; } } catch(Exception* e) { Console::WriteLine(S"The PublisherIdentityPermission demo failed."); Console::WriteLine(e); Console::WriteLine(S"Press the Enter key to exit."); Console::ReadLine(); System::Environment::ExitCode = 101; } }
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Requirements
Namespace: System.Security.Permissions
Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family
Assembly: Mscorlib (in Mscorlib.dll)
See Also
PublisherIdentityPermission Members | System.Security.Permissions Namespace | Permissions | Requesting Permissions | PublisherIdentityPermissionAttribute | Publisher | PublisherMembershipCondition