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Public Overridable Function IsUnrestricted() As Boolean Implements _ IUnrestrictedPermission.IsUnrestricted
[C#]
public virtual bool IsUnrestricted();
[C++]
public: virtual bool IsUnrestricted();
[JScript]
public function IsUnrestricted() : Boolean;
戻り値
SocketPermission インスタンスが PermissionState の Unrestricted 値で作成された場合は true 。それ以外の場合は false 。
実装
IUnrestrictedPermission.IsUnrestricted
使用例
[Visual Basic, C#, C++] 指定した SocketPermission に制限があるかどうかを、 IsUnrestricted プロパティを使用して確認する例を次に示します。
Dim socketPermission1 As New SocketPermission(PermissionState.Unrestricted)
'Create a 'SocketPermission' object for two ip addresses.
Dim socketPermission2 As New SocketPermission(PermissionState.None)
Dim securityElement4 As SecurityElement = socketPermission2.ToXml()
''SocketPermission' object for 'Connect' permission
Dim securityElement1 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 securityElement2 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 securityElement3 As New SecurityElement("URI", "192.168.144.240#-1#3")
securityElement1.AddChild(securityElement2)
securityElement1.AddChild(securityElement3)
securityElement4.AddChild(securityElement1)
'Obtain a 'SocketPermission' object using 'FromXml' method.
socketPermission2.FromXml(securityElement4)
'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(ControlChars.Cr + "Checks the Socket permissions using IsUnrestricted method : ")
If socketPermission1.IsUnrestricted() Then
Console.WriteLine("Socket permission is unrestricted")
Else
Console.WriteLine("Socket permission is restricted")
End If
Console.WriteLine()
Console.WriteLine("Display result of ConnectList property : " + ControlChars.Cr)
Dim enumerator As IEnumerator = socketPermission3.ConnectList
While enumerator.MoveNext()
Console.WriteLine("The hostname is : {0}", CType(enumerator.Current, EndpointPermission).Hostname)
Console.WriteLine("The port is : {0}", CType(enumerator.Current, EndpointPermission).Port)
Console.WriteLine("The Transport type is : {0}", CType(enumerator.Current, EndpointPermission).Transport)
End While
Console.WriteLine("")
Console.WriteLine("Display Security Elements :" + ControlChars.Cr + " ")
PrintSecurityElement(socketPermission2.ToXml(), 0)
'Get a 'SocketPermission' object which is a union of two other 'SocketPermission' objects.
socketPermission1 = CType(socketPermission3.Union(socketPermission2), SocketPermission)
'Demand that the calling method have the socket permission.
socketPermission1.Demand()
[C#]
SocketPermission socketPermission1 = new SocketPermission(PermissionState.Unrestricted);
// Create a 'SocketPermission' object for two ip addresses.
SocketPermission socketPermission2 = new SocketPermission(PermissionState.None);
SecurityElement securityElement4 = socketPermission2.ToXml();
// 'SocketPermission' object for 'Connect' permission
SecurityElement securityElement1 = 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 securityElement2 = 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 securityElement3 = new SecurityElement("URI", "192.168.144.240#-1#3");
securityElement1.AddChild(securityElement2);
securityElement1.AddChild(securityElement3);
securityElement4.AddChild(securityElement1);
// Obtain a 'SocketPermission' object using 'FromXml' method.
socketPermission2.FromXml(securityElement4);
// 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("\nChecks the Socket permissions using IsUnrestricted method : ");
if(socketPermission1.IsUnrestricted())
Console.WriteLine("Socket permission is unrestricted");
else
Console.WriteLine("Socket permission is restricted");
Console.WriteLine();
Console.WriteLine("Display result of ConnectList property : \n");
IEnumerator enumerator = socketPermission3.ConnectList;
while(enumerator.MoveNext()) {
Console.WriteLine("The hostname is : {0}", ((EndpointPermission)enumerator.Current).Hostname);
Console.WriteLine("The port is : {0}", ((EndpointPermission)enumerator.Current).Port);
Console.WriteLine("The Transport type is : {0}", ((EndpointPermission)enumerator.Current).Transport);
}
Console.WriteLine("");
Console.WriteLine("Display Security Elements :\n ");
PrintSecurityElement(socketPermission2.ToXml(), 0);
// Get a 'SocketPermission' object which is a union of two other 'SocketPermission' objects.
socketPermission1 = (SocketPermission)socketPermission3.Union(socketPermission2);
// Demand that the calling method have the socket permission.
socketPermission1.Demand();
[C++]
SocketPermission* socketPermission1 = new SocketPermission(PermissionState::Unrestricted);
// Create a 'SocketPermission' Object* for two ip addresses.
SocketPermission* socketPermission2 = new SocketPermission(PermissionState::None);
SecurityElement* securityElement4 = socketPermission2->ToXml();
// 'SocketPermission' Object* for 'Connect' permission
SecurityElement* securityElement1 = new SecurityElement(S"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* securityElement2 = new SecurityElement(S"URI", S"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* securityElement3 = new SecurityElement(S"URI", S"192.168.144.240#-1#3");
securityElement1->AddChild(securityElement2);
securityElement1->AddChild(securityElement3);
securityElement4->AddChild(securityElement1);
// Obtain a 'SocketPermission' Object* using 'FromXml' method.
socketPermission2->FromXml(securityElement4);
// 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,
S"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,
S"192.168.144.239",
SocketPermission::AllPorts);
Console::WriteLine(S"\nChecks the Socket permissions using IsUnrestricted method : ");
if (socketPermission1->IsUnrestricted())
Console::WriteLine(S"Socket permission is unrestricted");
else
Console::WriteLine(S"Socket permission is restricted");
Console::WriteLine();
Console::WriteLine(S"Display result of ConnectList property : \n");
IEnumerator* enumerator = socketPermission3->ConnectList;
while(enumerator->MoveNext())
{
Console::WriteLine(S"The hostname is : {0}", dynamic_cast<EndpointPermission*>(enumerator->Current)->Hostname);
Console::WriteLine(S"The port is : {0}",__box( dynamic_cast<EndpointPermission*>(enumerator->Current)->Port));
Console::WriteLine(S"The Transport type is : {0}",__box( dynamic_cast<EndpointPermission*>(enumerator->Current)->Transport));
}
Console::WriteLine(S"");
Console::WriteLine(S"Display Security Elements :\n ");
PrintSecurityElement(socketPermission2->ToXml(), 0);
// Get a 'SocketPermission' Object* which is a union of two other 'SocketPermission' objects.
socketPermission1 = dynamic_cast<SocketPermission*>(socketPermission3->Union(socketPermission2));
// Demand that the calling method have the socket permission.
socketPermission1->Demand();
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必要条件
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
参照
SocketPermission クラス | SocketPermission メンバ | System.Net 名前空間