' 导入命名空间
Imports System.ServiceModel
Imports System.Collections.Generic
Imports System.IdentityModel.Tokens
Imports System.Security.Cryptography.X509Certificates
Imports System.ServiceModel.Channels
Imports System.ServiceModel.Security
Imports System.ServiceModel.Security.Tokens
Imports System.Security.Permissions

' Define a service contract for the calculator. 
<ServiceContract()> _
Public Interface ICalculator
    <OperationContract(IsOneWay := False)> _
    Function Add(ByVal n1 As Double, ByVal n2 As Double) As Double
    <OperationContract(IsOneWay := False)> _
    Function Subtract(ByVal n1 As Double, ByVal n2 As Double) As Double
    <OperationContract(IsOneWay := False)> _
    Function Multiply(ByVal n1 As Double, ByVal n2 As Double) As Double
    <OperationContract(IsOneWay := False)> _
    Function Divide(ByVal n1 As Double, ByVal n2 As Double) As Double
End Interface

Public NotInheritable Class CustomBindingCreator

    Public Shared Sub snippetSecurity()
        Dim wsHttpBinding As New WSHttpBinding()
        Dim whSecurity As WSHttpSecurity = wsHttpBinding.Security
    End Sub


    Public Shared Sub snippetCreateBindingElements()
        Dim wsHttpBinding As New WSHttpBinding()
        Dim beCollection As BindingElementCollection = wsHttpBinding.CreateBindingElements()
    End Sub


    Private Sub snippetCreateMessageSecurity()
        Dim wsHttpBinding As New WSHttpBinding()
    End Sub

    Public Shared Sub snippetGetTransport()
        Dim wsHttpBinding As New WSHttpBinding()
    End Sub

    Public Shared Sub snippetAllowCookies()
        Dim wsHttpBinding As New WSHttpBinding()
        wsHttpBinding.AllowCookies = True
    End Sub

    Public Shared Function GetBinding() As Binding
        ' securityMode is Message
        ' reliableSessionEnabled is true
        Dim binding As New WSHttpBinding(SecurityMode.Message, True)
        binding.Security.Message.ClientCredentialType = MessageCredentialType.Windows

        Dim security As WSHttpSecurity = binding.Security
        Return binding

    End Function

    Public Shared Function GetBinding2() As Binding

        ' The security mode is set to Message.
        Dim binding As New WSHttpBinding(SecurityMode.Message)
        binding.Security.Message.ClientCredentialType = MessageCredentialType.Windows
        Return binding

    End Function

    ' This method creates a WSFederationHttpBinding.
    Public Shared Function CreateWSFederationHttpBinding() As WSFederationHttpBinding
        ' Create an instance of the WSFederationHttpBinding
        Dim b As New WSFederationHttpBinding()

        ' Set the security mode to Message
        b.Security.Mode = WSFederationHttpSecurityMode.Message

        ' Set the Algorithm Suite to Basic256Rsa15
        b.Security.Message.AlgorithmSuite = SecurityAlgorithmSuite.Basic256Rsa15

        ' Set NegotiateServiceCredential to true
        b.Security.Message.NegotiateServiceCredential = True

        ' Set IssuedKeyType to Symmetric
        b.Security.Message.IssuedKeyType = SecurityKeyType.SymmetricKey

        ' Set IssuedTokenType to SAML 1.1
        b.Security.Message.IssuedTokenType = "http://docs.oasis-open.org/wss/oasis-wss-saml-token-profile-1.1#samlv1.1"

        ' Extract the STS certificate from the certificate store
        Dim store As New X509Store(StoreName.TrustedPeople, StoreLocation.CurrentUser)
        store.Open(OpenFlags.ReadOnly)
        Dim certs As X509Certificate2Collection = store.Certificates.Find(X509FindType.FindByThumbprint, "cd 54 88 85 0d 63 db ac 92 59 05 af ce b8 b1 de c3 67 9e 3f", False)
        store.Close()

        ' Create an EndpointIdentity from the STS certificate
        Dim identity As EndpointIdentity = EndpointIdentity.CreateX509CertificateIdentity(certs(0))

        ' Set the IssuerAddress using the address of the STS and the previously created EndpointIdentity
        b.Security.Message.IssuerAddress = New EndpointAddress(New Uri("http://localhost:8000/sts/x509"), identity)

        ' Set the IssuerBinding to a WSHttpBinding loaded from config
        b.Security.Message.IssuerBinding = New WSHttpBinding("Issuer")

        ' Set the IssuerMetadataAddress using the metadata address of the STS and the previously created EndpointIdentity
        b.Security.Message.IssuerMetadataAddress = New EndpointAddress(New Uri("http://localhost:8001/sts/mex"), identity)

        ' Create a ClaimTypeRequirement
        Dim ctr As New ClaimTypeRequirement("http://example.org/claim/c1", False)

        ' Add the ClaimTypeRequirement to ClaimTypeRequirements
        b.Security.Message.ClaimTypeRequirements.Add(ctr)

        ' Return the created binding
        Return b
    End Function

End Class

' Service class which implements the service contract. 
Public Class CalculatorService
    Implements ICalculator
    Public Function Add(ByVal n1 As Double, ByVal n2 As Double) As Double Implements ICalculator.Add
        Dim result = n1 + n2
        Return result
    End Function
    Public Function Subtract(ByVal n1 As Double, ByVal n2 As Double) As Double Implements ICalculator.Subtract
        Dim result = n1 - n2
        Return result
    End Function
    Public Function Multiply(ByVal n1 As Double, ByVal n2 As Double) As Double Implements ICalculator.Multiply
        Dim result = n1 * n2
        Return result
    End Function
    Public Function Divide(ByVal n1 As Double, ByVal n2 As Double) As Double Implements ICalculator.Divide
        Dim result = n1 / n2
        Return result
    End Function


    ' Host the service within this EXE console application. 
    Public Shared Sub Main()
        ' Create a WSHttpBinding and set its property values. 
        Dim binding As New WSHttpBinding()
        With binding
            .Name = "binding1"
            .HostNameComparisonMode = HostNameComparisonMode.StrongWildcard
            .Security.Mode = SecurityMode.Message
            .ReliableSession.Enabled = False
            .TransactionFlow = False
        End With
        
        'Specify a base address for the service endpoint. 
        Dim baseAddress As New Uri("http://localhost:8000/servicemodelsamples/service")
        ' Create a ServiceHost for the CalculatorService type 
        ' and provide it with a base address. 
        Dim serviceHost As New ServiceHost(GetType(CalculatorService), baseAddress)
        serviceHost.AddServiceEndpoint(GetType(ICalculator), binding, baseAddress)
        ' Open the ServiceHostBase to create listeners 
        ' and start listening for messages. 
        serviceHost.Open()
        ' The service can now be accessed. 
        Console.WriteLine("The service is ready.")
        Console.WriteLine("Press <ENTER> to terminate service.")
        Console.WriteLine()
        Console.ReadLine()
        ' Close the ServiceHost to shutdown the service. 
        serviceHost.Close()
    End Sub
End Class