SocketPermission Конструкторы

  • Ссылка

Определение

Пространство имен:
System.Net
Сборка:
System.Security.Permissions.dll
Сборка:
System.dll
Пакет:
System.Security.Permissions v8.0.0
Пакет:
System.Security.Permissions v9.0.0-rc.2.24473.5

Инициализирует новый экземпляр класса SocketPermission.

Перегрузки

SocketPermission(PermissionState)

Инициализирует новый экземпляр класса SocketPermission, который предоставляет неограниченный доступ к Socket или запрещает доступ к Socket.
SocketPermission(NetworkAccess, TransportType, String, Int32)

Инициализирует новый экземпляр класса SocketPermission для заданного адреса транспорта с указанным разрешением.

SocketPermission(PermissionState)

Исходный код:
SocketPermission.cs
Исходный код:
SocketPermission.cs

Инициализирует новый экземпляр класса SocketPermission, который предоставляет неограниченный доступ к Socket или запрещает доступ к Socket.

public:
 SocketPermission(System::Security::Permissions::PermissionState state);
public SocketPermission (System.Security.Permissions.PermissionState state);
new System.Net.SocketPermission : System.Security.Permissions.PermissionState -> System.Net.SocketPermission
Public Sub New (state As PermissionState)

Параметры

state
PermissionState

Одно из значений перечисления PermissionState.

Примеры

В следующем примере создается SocketPermission с помощью перечисленного PermissionState значения.

SocketPermission^ socketPermission1 = gcnew SocketPermission( PermissionState::Unrestricted );

// Create a 'SocketPermission' Object* for two ip addresses.
SocketPermission^ socketPermission2 = gcnew SocketPermission( PermissionState::None );
SecurityElement^ securityElement1 = socketPermission2->ToXml();
// 'SocketPermission' Object* for 'Connect' permission
SecurityElement^ securityElement2 = gcnew SecurityElement( "ConnectAccess" );
// Format to specify ip address are <ip-address>#<port>#<transport-type>
// First 'SocketPermission' ip-address is '192.168.144.238' for 'All' transport types and
// for 'All'ports for the ip-address.
SecurityElement^ securityElement3 = gcnew SecurityElement( "URI","192.168.144.238#-1#3" );
// Second 'SocketPermission' ip-address is '192.168.144.240' for 'All' transport types and
// for 'All' ports for the ip-address.
SecurityElement^ securityElement4 = gcnew SecurityElement( "URI","192.168.144.240#-1#3" );
securityElement2->AddChild( securityElement3 );
securityElement2->AddChild( securityElement4 );
securityElement1->AddChild( securityElement2 );

// Obtain a 'SocketPermission' Object* using 'FromXml' method.
socketPermission2->FromXml( securityElement1 );

Console::WriteLine( "\nDisplays the result of FromXml method : \n" );
Console::WriteLine( socketPermission2 );

// Create another 'SocketPermission' Object* with two ip addresses.
// First 'SocketPermission' ip-address is '192.168.144.238' for 'All' transport types and for 'All' ports for the ip-address.
SocketPermission^ socketPermission3 =
   gcnew SocketPermission( NetworkAccess::Connect,
      TransportType::All,
      "192.168.144.238",
      SocketPermission::AllPorts );

// Second 'SocketPermission' ip-address is '192.168.144.239' for 'All' transport types and for 'All' ports for the ip-address.
socketPermission3->AddPermission( NetworkAccess::Connect,
   TransportType::All,
   "192.168.144.239",
   SocketPermission::AllPorts );

Console::WriteLine( "Displays the result of AddPermission method : \n" );
Console::WriteLine( socketPermission3 );

// Find the intersection between two 'SocketPermission' objects.
socketPermission1 = dynamic_cast<SocketPermission^>(socketPermission2->Intersect( socketPermission3 ));

Console::WriteLine( "Displays the result of Intersect method :\n " );
Console::WriteLine( socketPermission1 );

// Demand that the calling method have the requsite socket permission.
socketPermission1->Demand();

  SocketPermission socketPermission1 = new SocketPermission(PermissionState.Unrestricted);

  // Create a 'SocketPermission' object for two ip addresses.
  SocketPermission socketPermission2 = new SocketPermission(PermissionState.None);
  SecurityElement securityElement1 = socketPermission2.ToXml();
  // 'SocketPermission' object for 'Connect' permission
  SecurityElement securityElement2 = new SecurityElement("ConnectAccess");
  // Format to specify ip address are <ip-address>#<port>#<transport-type>
  // First 'SocketPermission' ip-address is '192.168.144.238' for 'All' transport types and
// for 'All'ports for the ip-address.
  SecurityElement securityElement3 = new SecurityElement("URI", "192.168.144.238#-1#3");
  // Second 'SocketPermission' ip-address is '192.168.144.240' for 'All' transport types and
// for 'All' ports for the ip-address.
  SecurityElement securityElement4 = new SecurityElement("URI", "192.168.144.240#-1#3");
  securityElement2.AddChild(securityElement3);
  securityElement2.AddChild(securityElement4);
  securityElement1.AddChild(securityElement2);
  
 // Obtain a 'SocketPermission' object using 'FromXml' method.
  socketPermission2.FromXml(securityElement1);

  Console.WriteLine("\nDisplays the result of FromXml method : \n");
  Console.WriteLine(socketPermission2.ToString());

  // Create another 'SocketPermission' object with two ip addresses.
  // First 'SocketPermission' ip-address is '192.168.144.238' for 'All' transport types and for 'All' ports for the ip-address.
  SocketPermission socketPermission3 =
                  new SocketPermission(NetworkAccess.Connect,
                                       TransportType.All,
                                       "192.168.144.238",
                                       SocketPermission.AllPorts);

 // Second 'SocketPermission' ip-address is '192.168.144.239' for 'All' transport types and for 'All' ports for the ip-address.
  socketPermission3.AddPermission(NetworkAccess.Connect,
                                 TransportType.All,
                                 "192.168.144.239",
                                 SocketPermission.AllPorts);

  Console.WriteLine("Displays the result of AddPermission method : \n");
  Console.WriteLine(socketPermission3.ToString());

 // Find the intersection between two 'SocketPermission' objects.
  socketPermission1 = (SocketPermission)socketPermission2.Intersect(socketPermission3);

  Console.WriteLine("Displays the result of Intersect method :\n ");
  Console.WriteLine(socketPermission1.ToString());

  // Demand that the calling method have the requsite socket permission.
  socketPermission1.Demand();


Dim socketPermission1 As New SocketPermission(PermissionState.Unrestricted)

'Create a 'SocketPermission' object for two ip addresses.
Dim socketPermission2 As New SocketPermission(PermissionState.None)
Dim securityElement1 As SecurityElement = socketPermission2.ToXml()
''SocketPermission' object for 'Connect' permission
Dim securityElement2 As New SecurityElement("ConnectAccess")
'Format to specify ip address are <ip-address>#<port>#<transport-type>
'First 'SocketPermission' ip-address is '192.168.144.238' for 'All' transport types and for 'All'
' ports for the ip-address.
Dim securityElement3 As New SecurityElement("URI", "192.168.144.238#-1#3")
'Second 'SocketPermission' ip-address is '192.168.144.240' for 'All' transport types and for 'All' ports for the ip-address.
Dim securityElement4 As New SecurityElement("URI", "192.168.144.240#-1#3")
securityElement2.AddChild(securityElement3)
securityElement2.AddChild(securityElement4)
securityElement1.AddChild(securityElement2)


'Obtain a 'SocketPermission' object using 'FromXml' method.
socketPermission2.FromXml(securityElement1)

Console.WriteLine(ControlChars.Cr + "Displays the result of FromXml method : " + ControlChars.Cr)
Console.WriteLine(socketPermission2.ToString())

'Create another 'SocketPermission' object with two ip addresses.
'First 'SocketPermission' ip-address is '192.168.144.238' for 'All' transport types and for 'All' ports for the ip-address.
Dim socketPermission3 As New SocketPermission(NetworkAccess.Connect, TransportType.All, "192.168.144.238", SocketPermission.AllPorts)

'Second 'SocketPermission' ip-address is '192.168.144.239' for 'All' transport types and for 'All' ports for the ip-address.
socketPermission3.AddPermission(NetworkAccess.Connect, TransportType.All, "192.168.144.239", SocketPermission.AllPorts)

Console.WriteLine("Displays the result of AddPermission method : " + ControlChars.Cr)
Console.WriteLine(socketPermission3.ToString())

'Find the intersection between two 'SocketPermission' objects.
socketPermission1 = CType(socketPermission2.Intersect(socketPermission3), SocketPermission)

Console.WriteLine("Displays the result of Intersect method :" + ControlChars.Cr + " ")
Console.WriteLine(socketPermission1.ToString())
'Demand that the calling method have the requsite socket permission.
socketPermission1.Demand()

Комментарии

SocketPermission Если экземпляр создается со значением Unrestricted из PermissionState , то SocketPermission экземпляр выполняет все требования. Любое другое значение для state приводит к экземпляру SocketPermission , который не выполняет все требования, если разрешение на адрес транспорта не добавлено с AddPermissionпомощью .

Применяется к

SocketPermission(NetworkAccess, TransportType, String, Int32)

Исходный код:
SocketPermission.cs
Исходный код:
SocketPermission.cs

Инициализирует новый экземпляр класса SocketPermission для заданного адреса транспорта с указанным разрешением.

public:
 SocketPermission(System::Net::NetworkAccess access, System::Net::TransportType transport, System::String ^ hostName, int portNumber);
public SocketPermission (System.Net.NetworkAccess access, System.Net.TransportType transport, string hostName, int portNumber);
new System.Net.SocketPermission : System.Net.NetworkAccess * System.Net.TransportType * string * int -> System.Net.SocketPermission
Public Sub New (access As NetworkAccess, transport As TransportType, hostName As String, portNumber As Integer)

Параметры

access
NetworkAccess

Одно из значений перечисления NetworkAccess.

transport
TransportType

Одно из значений перечисления TransportType.

hostName
String

Имя узла для адреса транспорта.

portNumber
Int32

Номер порта для адреса транспорта.

Исключения

ArgumentNullException

hostName имеет значение null.

Примеры

В следующем примере создается SocketPermission с использованием перечислимого NetworkAccessTransportType значения, перечисленного значения, имени узла и номера порта.

SocketPermission^ socketPermission1 = gcnew SocketPermission( PermissionState::Unrestricted );

// Create a 'SocketPermission' Object* for two ip addresses.
SocketPermission^ socketPermission2 = gcnew SocketPermission( PermissionState::None );
SecurityElement^ securityElement1 = socketPermission2->ToXml();
// 'SocketPermission' Object* for 'Connect' permission
SecurityElement^ securityElement2 = gcnew SecurityElement( "ConnectAccess" );
// Format to specify ip address are <ip-address>#<port>#<transport-type>
// First 'SocketPermission' ip-address is '192.168.144.238' for 'All' transport types and
// for 'All'ports for the ip-address.
SecurityElement^ securityElement3 = gcnew SecurityElement( "URI","192.168.144.238#-1#3" );
// Second 'SocketPermission' ip-address is '192.168.144.240' for 'All' transport types and
// for 'All' ports for the ip-address.
SecurityElement^ securityElement4 = gcnew SecurityElement( "URI","192.168.144.240#-1#3" );
securityElement2->AddChild( securityElement3 );
securityElement2->AddChild( securityElement4 );
securityElement1->AddChild( securityElement2 );

// Obtain a 'SocketPermission' Object* using 'FromXml' method.
socketPermission2->FromXml( securityElement1 );

Console::WriteLine( "\nDisplays the result of FromXml method : \n" );
Console::WriteLine( socketPermission2 );

// Create another 'SocketPermission' Object* with two ip addresses.
// First 'SocketPermission' ip-address is '192.168.144.238' for 'All' transport types and for 'All' ports for the ip-address.
SocketPermission^ socketPermission3 =
   gcnew SocketPermission( NetworkAccess::Connect,
      TransportType::All,
      "192.168.144.238",
      SocketPermission::AllPorts );

// Second 'SocketPermission' ip-address is '192.168.144.239' for 'All' transport types and for 'All' ports for the ip-address.
socketPermission3->AddPermission( NetworkAccess::Connect,
   TransportType::All,
   "192.168.144.239",
   SocketPermission::AllPorts );

Console::WriteLine( "Displays the result of AddPermission method : \n" );
Console::WriteLine( socketPermission3 );

// Find the intersection between two 'SocketPermission' objects.
socketPermission1 = dynamic_cast<SocketPermission^>(socketPermission2->Intersect( socketPermission3 ));

Console::WriteLine( "Displays the result of Intersect method :\n " );
Console::WriteLine( socketPermission1 );

// Demand that the calling method have the requsite socket permission.
socketPermission1->Demand();

  SocketPermission socketPermission1 = new SocketPermission(PermissionState.Unrestricted);

  // Create a 'SocketPermission' object for two ip addresses.
  SocketPermission socketPermission2 = new SocketPermission(PermissionState.None);
  SecurityElement securityElement1 = socketPermission2.ToXml();
  // 'SocketPermission' object for 'Connect' permission
  SecurityElement securityElement2 = new SecurityElement("ConnectAccess");
  // Format to specify ip address are <ip-address>#<port>#<transport-type>
  // First 'SocketPermission' ip-address is '192.168.144.238' for 'All' transport types and
// for 'All'ports for the ip-address.
  SecurityElement securityElement3 = new SecurityElement("URI", "192.168.144.238#-1#3");
  // Second 'SocketPermission' ip-address is '192.168.144.240' for 'All' transport types and
// for 'All' ports for the ip-address.
  SecurityElement securityElement4 = new SecurityElement("URI", "192.168.144.240#-1#3");
  securityElement2.AddChild(securityElement3);
  securityElement2.AddChild(securityElement4);
  securityElement1.AddChild(securityElement2);
  
 // Obtain a 'SocketPermission' object using 'FromXml' method.
  socketPermission2.FromXml(securityElement1);

  Console.WriteLine("\nDisplays the result of FromXml method : \n");
  Console.WriteLine(socketPermission2.ToString());

  // Create another 'SocketPermission' object with two ip addresses.
  // First 'SocketPermission' ip-address is '192.168.144.238' for 'All' transport types and for 'All' ports for the ip-address.
  SocketPermission socketPermission3 =
                  new SocketPermission(NetworkAccess.Connect,
                                       TransportType.All,
                                       "192.168.144.238",
                                       SocketPermission.AllPorts);

 // Second 'SocketPermission' ip-address is '192.168.144.239' for 'All' transport types and for 'All' ports for the ip-address.
  socketPermission3.AddPermission(NetworkAccess.Connect,
                                 TransportType.All,
                                 "192.168.144.239",
                                 SocketPermission.AllPorts);

  Console.WriteLine("Displays the result of AddPermission method : \n");
  Console.WriteLine(socketPermission3.ToString());

 // Find the intersection between two 'SocketPermission' objects.
  socketPermission1 = (SocketPermission)socketPermission2.Intersect(socketPermission3);

  Console.WriteLine("Displays the result of Intersect method :\n ");
  Console.WriteLine(socketPermission1.ToString());

  // Demand that the calling method have the requsite socket permission.
  socketPermission1.Demand();


Dim socketPermission1 As New SocketPermission(PermissionState.Unrestricted)

'Create a 'SocketPermission' object for two ip addresses.
Dim socketPermission2 As New SocketPermission(PermissionState.None)
Dim securityElement1 As SecurityElement = socketPermission2.ToXml()
''SocketPermission' object for 'Connect' permission
Dim securityElement2 As New SecurityElement("ConnectAccess")
'Format to specify ip address are <ip-address>#<port>#<transport-type>
'First 'SocketPermission' ip-address is '192.168.144.238' for 'All' transport types and for 'All'
' ports for the ip-address.
Dim securityElement3 As New SecurityElement("URI", "192.168.144.238#-1#3")
'Second 'SocketPermission' ip-address is '192.168.144.240' for 'All' transport types and for 'All' ports for the ip-address.
Dim securityElement4 As New SecurityElement("URI", "192.168.144.240#-1#3")
securityElement2.AddChild(securityElement3)
securityElement2.AddChild(securityElement4)
securityElement1.AddChild(securityElement2)


'Obtain a 'SocketPermission' object using 'FromXml' method.
socketPermission2.FromXml(securityElement1)

Console.WriteLine(ControlChars.Cr + "Displays the result of FromXml method : " + ControlChars.Cr)
Console.WriteLine(socketPermission2.ToString())

'Create another 'SocketPermission' object with two ip addresses.
'First 'SocketPermission' ip-address is '192.168.144.238' for 'All' transport types and for 'All' ports for the ip-address.
Dim socketPermission3 As New SocketPermission(NetworkAccess.Connect, TransportType.All, "192.168.144.238", SocketPermission.AllPorts)

'Second 'SocketPermission' ip-address is '192.168.144.239' for 'All' transport types and for 'All' ports for the ip-address.
socketPermission3.AddPermission(NetworkAccess.Connect, TransportType.All, "192.168.144.239", SocketPermission.AllPorts)

Console.WriteLine("Displays the result of AddPermission method : " + ControlChars.Cr)
Console.WriteLine(socketPermission3.ToString())

'Find the intersection between two 'SocketPermission' objects.
socketPermission1 = CType(socketPermission2.Intersect(socketPermission3), SocketPermission)

Console.WriteLine("Displays the result of Intersect method :" + ControlChars.Cr + " ")
Console.WriteLine(socketPermission1.ToString())
'Demand that the calling method have the requsite socket permission.
socketPermission1.Demand()

Комментарии

Этот конструктор создает объект , который управляет доступом SocketPermission к указанному hostName объекту и portNumber с помощью указанного transportобъекта .

Может hostName быть DNS-именем, IP-адресом или указанной IP-подсетью, например 192.168.1.*.

Может portNumber быть любым допустимым номером порта, определенным транспортом, или SocketPermission.AllPorts.

Применяется к