ServiceCredentialsSecurityTokenManager.CreateSecurityTokenProvider Yöntem

Tanım

Ad Alanı:

System.ServiceModel.Security

Bütünleştirilmiş Kod:

System.ServiceModel.dll

tabanlı SecurityTokenRequirementbir güvenlik belirteci sağlayıcısı oluşturur.

public:
 override System::IdentityModel::Selectors::SecurityTokenProvider ^ CreateSecurityTokenProvider(System::IdentityModel::Selectors::SecurityTokenRequirement ^ requirement);

public override System.IdentityModel.Selectors.SecurityTokenProvider CreateSecurityTokenProvider (System.IdentityModel.Selectors.SecurityTokenRequirement requirement);

override this.CreateSecurityTokenProvider : System.IdentityModel.Selectors.SecurityTokenRequirement -> System.IdentityModel.Selectors.SecurityTokenProvider

Public Overrides Function CreateSecurityTokenProvider (requirement As SecurityTokenRequirement) As SecurityTokenProvider

Parametreler

requirement

SecurityTokenRequirement

Güvenlik belirteci gereksinimi.

Döndürülenler

SecurityTokenProvider

Güvenlik belirteci sağlayıcısı.

Özel durumlar

ArgumentNullException

requirement, null değeridir.

NotSupportedException

geçirilen için requirement bir güvenlik belirteci sağlayıcısı oluşturulamaz.

Örnekler

Aşağıdaki kodda bu yöntemin nasıl geçersiz kılınacakları gösterilmektedir.

internal class MyServiceCredentialsSecurityTokenManager :
    ServiceCredentialsSecurityTokenManager
{
    MyServiceCredentials credentials;

    public MyServiceCredentialsSecurityTokenManager(
        MyServiceCredentials credentials)
        : base(credentials)
    {
        this.credentials = credentials;
    }

    public override SecurityTokenProvider CreateSecurityTokenProvider(
        SecurityTokenRequirement requirement)
    {
        SecurityTokenProvider result = null;
        if (requirement.TokenType == SecurityTokenTypes.X509Certificate)
        {
            MessageDirection direction = requirement.
                GetProperty<MessageDirection>(
                ServiceModelSecurityTokenRequirement.
                MessageDirectionProperty);
            if (direction == MessageDirection.Input)
            {
                if (requirement.KeyUsage == SecurityKeyUsage.Exchange)
                {
                    result = new X509SecurityTokenProvider(
                        credentials.ServiceEncryptingCertificate);
                }
                else
                {
                    result = new X509SecurityTokenProvider(
                        credentials.ClientSigningCertificate);
                }
            }
            else
            {
                if (requirement.KeyUsage == SecurityKeyUsage.Signature)
                {
                    result = new X509SecurityTokenProvider(
                        credentials.ServiceSigningCertificate);
                }
                else
                {
                    result = new X509SecurityTokenProvider(
                        credentials.ClientEncryptingCertificate);
                }
            }
        }
        else
        {
            result = base.CreateSecurityTokenProvider(requirement);
        }
        return result;
    }
}

Friend Class MyServiceCredentialsSecurityTokenManager
    Inherits ServiceCredentialsSecurityTokenManager
    Private credentials As MyServiceCredentials

    Public Sub New(ByVal credentials As MyServiceCredentials)
        MyBase.New(credentials)
        Me.credentials = credentials
    End Sub

    Public Overrides Function CreateSecurityTokenProvider(ByVal requirement As SecurityTokenRequirement) As SecurityTokenProvider
        Dim result As SecurityTokenProvider = Nothing
        If requirement.TokenType = SecurityTokenTypes.X509Certificate Then
            Dim direction As MessageDirection = requirement. GetProperty(Of MessageDirection)(ServiceModelSecurityTokenRequirement. MessageDirectionProperty)
            If direction = MessageDirection.Input Then
                If requirement.KeyUsage = SecurityKeyUsage.Exchange Then
                    result = New X509SecurityTokenProvider(credentials.ServiceEncryptingCertificate)
                Else
                    result = New X509SecurityTokenProvider(credentials.ClientSigningCertificate)
                End If
            Else
                If requirement.KeyUsage = SecurityKeyUsage.Signature Then
                    result = New X509SecurityTokenProvider(credentials.ServiceSigningCertificate)
                Else
                    result = New X509SecurityTokenProvider(credentials.ClientEncryptingCertificate)
                End If
            End If
        Else
            result = MyBase.CreateSecurityTokenProvider(requirement)
        End If
        Return result
    End Function
End Class

Açıklamalar

SecurityTokenProvider sınıfı, belirli ServiceModelSecurityTokenRequirementbir için belirteçleri almakla sorumludur. İsteğe bağlı olarak, belirteç sağlayıcıları belirteçleri yenilemeyi ve iptal etme işlemini de destekleyebilir. Belirteç sağlayıcısı, bunu yapacak şekilde yapılandırılmışsa belirteçleri önbelleğe alabilir.