ServiceCredentialsSecurityTokenManager.CreateSecurityTokenProvider Metod

Definition

Namnområde:
System.ServiceModel.Security
Sammansättning:
System.ServiceModel.dll

Skapar en säkerhetstokenprovider baserat på SecurityTokenRequirement.

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

Parametrar

requirement
SecurityTokenRequirement

Krav för säkerhetstoken.

Returer

SecurityTokenProvider

Providern för säkerhetstoken.

Undantag

ArgumentNullException

requirement är null.

NotSupportedException

Det går inte att skapa en säkerhetstokenprovider för den requirement som skickades in.

Exempel

Följande kod visar hur du åsidosätter den här metoden.

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

Kommentarer

Klassen SecurityTokenProvider ansvarar för att hämta token för en viss ServiceModelSecurityTokenRequirement. Du kan också använda tokenprovidrar för att förnya och avbryta token. Tokenprovidern kan cachelagras om den är konfigurerad för att göra det.

Gäller för