ServiceCredentialsSecurityTokenManager.CreateSecurityTokenProvider Methode

Definitie

Naamruimte:
System.ServiceModel.Security
Assembly:
System.ServiceModel.dll

Hiermee maakt u een beveiligingstokenprovider op basis van de 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

Parameters

requirement
SecurityTokenRequirement

De vereiste van het beveiligingstoken.

Retouren

SecurityTokenProvider

De beveiligingstokenprovider.

Uitzonderingen

ArgumentNullException

requirement is null.

NotSupportedException

Er kan geen beveiligingstokenprovider worden gemaakt voor de requirement provider die is doorgegeven.

Voorbeelden

De volgende code laat zien hoe u deze methode overschrijft.

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

Opmerkingen

De SecurityTokenProvider klasse is verantwoordelijk voor het verkrijgen van tokens voor een bepaalde ServiceModelSecurityTokenRequirement. Optioneel kunnen tokenproviders ook ondersteuning bieden voor het vernieuwen en annuleren van tokens. De tokenprovider kan tokens in de cache opslaan als dit zo is geconfigureerd.

Van toepassing op