作法：設定 ProtectionLevel 屬性

發行項
05/22/2023

您可以套用適當的屬性 (Attribute) 並設定屬性 (Property)，藉此設定保護層級。您可以設定服務層級的保護，以影響每一個訊息的所有部分，或是從方法到訊息部分，設定越發細微的保護層級。如需 ProtectionLevel 屬性的詳細資訊，請參閱了解保護等級。

注意

您只能在程式碼中設定保護層級，而不能在組態中設定。

簽署服務的所有訊息

建立服務的介面。

將 ServiceContractAttribute 屬性 (Attribute) 套用至服務，並且將 ProtectionLevel 屬性 (Property) 設為 Sign，如以下程式碼中所示 (預設層級為 EncryptAndSign)。

// Set the ProtectionLevel on the whole service to Sign.
[ServiceContract(ProtectionLevel = ProtectionLevel.Sign)]
public interface ICalculator

' Set the ProtectionLevel on the whole service to Sign.
<ServiceContract(ProtectionLevel:=ProtectionLevel.Sign)> _
Public Interface ICalculator

簽署作業的所有訊息部分

建立服務的介面，並且將 ServiceContractAttribute 屬性套用至介面。
將方法宣告加入至介面。

將 OperationContractAttribute 屬性 (Attribute) 套用至方法，並且將 ProtectionLevel 屬性 (Property) 設為 Sign，如以下程式碼中所示。

// Set the ProtectionLevel on the whole service to Sign.
[ServiceContract(ProtectionLevel = ProtectionLevel.Sign)]
public interface ICalculator
{
    // Set the ProtectionLevel on this operation to None.
    [OperationContract(ProtectionLevel = ProtectionLevel.Sign)]
    double Add(double a, double b);
}

' Set the ProtectionLevel on the whole service to Sign.
<ServiceContract(ProtectionLevel:=ProtectionLevel.Sign)> _
Public Interface ICalculator

    ' Set the ProtectionLevel on this operation to Sign.
    <OperationContract(ProtectionLevel:=ProtectionLevel.Sign)> _
    Function Add(ByVal a As Double, ByVal b As Double) As Double
End Interface

保護錯誤訊息

在服務上擲回的例外狀況可以當成 SOAP 錯誤傳送至用戶端。如需建立強型別錯誤的詳細資訊，請參閱在合約與服務中指定及處理錯誤，以及操作說明：在服務合約中宣告錯誤。

保護錯誤訊息

建立表示錯誤訊息的類型。以下範例將建立名為 MathFault 的類別，其中包含兩個欄位。

將 DataContractAttribute 屬性套用至類型，並且將 DataMemberAttribute 屬性套用至應序列化的每一個欄位，如以下程式碼所示。

[DataContract]
public class MathFault
{
    [DataMember]
    public string operation;
    [DataMember]
    public string description;
}

<DataContract()> _
Public Class MathFault
    <DataMember()> _
    Public operation As String
    <DataMember()> _
    Public description As String
End Class

在傳回錯誤的介面中，將 FaultContractAttribute 屬性套用至傳回錯誤的方法，並且將 detailType 參數設為錯誤類別的類型。

同時，在建構函式中，將 ProtectionLevel 屬性設為 EncryptAndSign，如以下程式碼所示。

public interface ICalculator
{
    // Set the ProtectionLevel on a FaultContractAttribute.
    [OperationContract(ProtectionLevel = ProtectionLevel.EncryptAndSign)]
    [FaultContract(
        typeof(MathFault),
        Action = @"http://localhost/Add",
        Name = "AddFault",
        Namespace = "http://contoso.com",
        ProtectionLevel = ProtectionLevel.EncryptAndSign)]
    double Add(double a, double b);
}

Public Interface ICalculator
    ' Set the ProtectionLevel on a FaultContractAttribute.
    <OperationContract(ProtectionLevel:=ProtectionLevel.EncryptAndSign), _
     FaultContract(GetType(MathFault), ProtectionLevel:=ProtectionLevel.EncryptAndSign)> _
    Function Add(ByVal a As Double, ByVal b As Double) As Double
End Interface

保護訊息部分

使用訊息合約保護訊息的部分。如需訊息合約的詳細資訊，請參閱使用訊息合約。

保護訊息本文

建立表示訊息的類型。以下範例將建立 Company 類別，其中包含兩個欄位 CompanyName 和 CompanyID。
將 MessageContractAttribute 屬性 (Attribute) 套用至類別，並且將 ProtectionLevel 屬性 (Property) 設為 EncryptAndSign。
將 MessageHeaderAttribute 屬性 (Attribute) 套用以訊息標頭表示的欄位，並且將 ProtectionLevel 屬性 (Property) 設為 EncryptAndSign。

將 MessageBodyMemberAttribute 套用至任何以訊息本文部分表示的欄位，且將 ProtectionLevel 屬性設定為 EncryptAndSign，如以下範例所示。

[MessageContract(ProtectionLevel = ProtectionLevel.EncryptAndSign)]
public class Company
{
    [MessageHeader(ProtectionLevel = ProtectionLevel.Sign)]
    public string CompanyName;

    [MessageBodyMember(ProtectionLevel = ProtectionLevel.EncryptAndSign)]
    public string CompanyID;
}

<MessageContract(ProtectionLevel:=ProtectionLevel.EncryptAndSign)> _
Public Class Company
    <MessageHeader(ProtectionLevel:=ProtectionLevel.Sign)> _
    Public CompanyName As String

    <MessageBodyMember(ProtectionLevel:=ProtectionLevel.EncryptAndSign)> _
    Public CompanyID As String
End Class

範例

以下範例會在服務中的不同位置，設定數個屬性 (Attribute) 類別的 ProtectionLevel 屬性 (Property)。

[ServiceContract(ProtectionLevel = ProtectionLevel.EncryptAndSign)]
public interface ICalculator
{
    [OperationContract(ProtectionLevel = ProtectionLevel.Sign)]
    double Add(double a, double b);

    [OperationContract()]
    [FaultContract(typeof(MathFault),
        ProtectionLevel = ProtectionLevel.EncryptAndSign)]
    double Subtract(double a, double b);

    [OperationContract(ProtectionLevel = ProtectionLevel.EncryptAndSign)]
    Company GetCompanyInfo();
}

[DataContract]
public class MathFault
{
    [DataMember]
    public string operation;
    [DataMember]
    public string description;
}

[MessageContract(ProtectionLevel = ProtectionLevel.EncryptAndSign)]
public class Company
{
    [MessageHeader(ProtectionLevel = ProtectionLevel.Sign)]
    public string CompanyName;

    [MessageBodyMember(ProtectionLevel = ProtectionLevel.EncryptAndSign)]
    public string CompanyID;
}

[MessageContract(ProtectionLevel = ProtectionLevel.Sign)]
public class Calculator : ICalculator
{
    public double Add(double a, double b)
    {
        return a + b;
    }

    public double Subtract(double a, double b)
    {
        return a - b;
    }

    public Company GetCompanyInfo()
    {
        Company co = new Company();
        co.CompanyName = "www.cohowinery.com";
        return co;
    }
}

public class Test
{
    static void Main()
    {
        Test t = new Test();
        try
        {
            t.Run();
        }
        catch (System.InvalidOperationException inv)
        {
            Console.WriteLine(inv.Message);
        }
    }

    private void Run()
    {
        // Create a binding and set the security mode to Message.
        WSHttpBinding b = new WSHttpBinding();
        b.Security.Mode = SecurityMode.Message;

        Type contractType = typeof(ICalculator);
        Type implementedContract = typeof(Calculator);
        Uri baseAddress = new Uri("http://localhost:8044/base");

        // Create the ServiceHost and add an endpoint.
        ServiceHost sh = new ServiceHost(implementedContract, baseAddress);
        sh.AddServiceEndpoint(contractType, b, "Calculator");

        ServiceMetadataBehavior sm = new ServiceMetadataBehavior();
        sm.HttpGetEnabled = true;
        sh.Description.Behaviors.Add(sm);
        sh.Credentials.ServiceCertificate.SetCertificate(
            StoreLocation.CurrentUser,
            StoreName.My,
            X509FindType.FindByIssuerName,
            "ValidCertificateIssuer");

        foreach (ServiceEndpoint se in sh.Description.Endpoints)
        {
            ContractDescription cd = se.Contract;
            Console.WriteLine("\nContractDescription: ProtectionLevel = {0}", cd.Name, cd.ProtectionLevel);
            foreach (OperationDescription od in cd.Operations)
            {
                Console.WriteLine("\nOperationDescription: Name = {0}", od.Name, od.ProtectionLevel);
                Console.WriteLine("ProtectionLevel = {1}", od.Name, od.ProtectionLevel);
                foreach (MessageDescription m in od.Messages)
                {
                    Console.WriteLine("\t {0}: {1}", m.Action, m.ProtectionLevel);
                    foreach (MessageHeaderDescription mh in m.Headers)
                    {
                        Console.WriteLine("\t\t {0}: {1}", mh.Name, mh.ProtectionLevel);

                        foreach (MessagePropertyDescription mp in m.Properties)
                        {
                            Console.WriteLine("{0}: {1}", mp.Name, mp.ProtectionLevel);
                        }
                    }
                }
            }
        }
        sh.Open();
        Console.WriteLine("Listening");
        Console.ReadLine();
        sh.Close();
    }
}

<ServiceContract(ProtectionLevel:=ProtectionLevel.EncryptAndSign)> _
Public Interface ICalculator
    <OperationContract(ProtectionLevel:=ProtectionLevel.EncryptAndSign)> _
    Function Add(ByVal a As Double, ByVal b As Double) As Double


    <OperationContract(), _
       FaultContract _
       (GetType(MathFault), _
       Action:="http://localhost/Add", _
       Name:="AddFault", _
       Namespace:="http://contoso.com", _
       ProtectionLevel:=ProtectionLevel.EncryptAndSign)> _
    Function Subtract(ByVal a As Double, ByVal b As Double) As Double

    <OperationContract(ProtectionLevel:=ProtectionLevel.EncryptAndSign)> _
    Function GetCompanyInfo() As Company
End Interface


<DataContract()> _
Public Class MathFault
    <DataMember()> _
    Public operation As String
    <DataMember()> _
    Public description As String
End Class

<MessageContract(ProtectionLevel:=ProtectionLevel.EncryptAndSign)> _
Public Class Company
    <MessageHeader(ProtectionLevel:=ProtectionLevel.Sign)> _
    Public CompanyName As String

    <MessageBodyMember(ProtectionLevel:=ProtectionLevel.EncryptAndSign)> _
    Public CompanyID As String
End Class

<MessageContract(ProtectionLevel:=ProtectionLevel.Sign)> _
Public Class Calculator
    Implements ICalculator

    Public Function Add(ByVal a As Double, ByVal b As Double) As Double _
      Implements ICalculator.Add
        Return a + b

    End Function

    Public Function Subtract(ByVal a As Double, ByVal b As Double) As Double _
       Implements ICalculator.Subtract
        Return a - b

    End Function

    Public Function GetCompanyInfo() As Company Implements ICalculator.GetCompanyInfo
        Dim co As New Company()
        co.CompanyName = "www.cohowinery.com"
        Return co
    End Function
End Class


Public Class Test

    Shared Sub Main()
        Dim t As New Test()
        Try
            t.Run()
        Catch inv As System.InvalidOperationException
            Console.WriteLine(inv.Message)
        End Try
    End Sub


    Private Sub Run()
        ' Create a binding and set the security mode to Message.
        Dim b As New WSHttpBinding()
        b.Security.Mode = SecurityMode.Message

        Dim contractType As Type = GetType(ICalculator)
        Dim implementedContract As Type = GetType(Calculator)
        Dim baseAddress As New Uri("http://localhost:8044/base")

        ' Create the ServiceHost and add an endpoint.
        Dim sh As New ServiceHost(implementedContract, baseAddress)
        sh.AddServiceEndpoint(contractType, b, "Calculator")

        Dim sm As New ServiceMetadataBehavior()
        sm.HttpGetEnabled = True
        sh.Description.Behaviors.Add(sm)
        sh.Credentials.ServiceCertificate.SetCertificate( _
           StoreLocation.CurrentUser, StoreName.My, _
           X509FindType.FindByIssuerName, "ValidCertificateIssuer")

        Dim se As ServiceEndpoint
        For Each se In sh.Description.Endpoints
            Dim cd As ContractDescription = se.Contract
            Console.WriteLine(vbLf + "ContractDescription: ProtectionLevel = {0}", _
               cd.Name, cd.ProtectionLevel)
            Dim od As OperationDescription
            For Each od In cd.Operations
                Console.WriteLine(vbLf + "OperationDescription: Name = {0}", od.Name, od.ProtectionLevel)
                Console.WriteLine("ProtectionLevel = {1}", od.Name, od.ProtectionLevel)
                Dim m As MessageDescription
                For Each m In od.Messages
                    Console.WriteLine(vbTab + " {0}: {1}", m.Action, m.ProtectionLevel)
                    Dim mh As MessageHeaderDescription
                    For Each mh In m.Headers
                        Console.WriteLine(vbTab + vbTab + " {0}: {1}", mh.Name, mh.ProtectionLevel)

                        Dim mp As MessagePropertyDescription
                        For Each mp In m.Properties
                            Console.WriteLine("{0}: {1}", mp.Name, mp.ProtectionLevel)
                        Next mp
                    Next mh
                Next m
            Next od
        Next se
        sh.Open()
        Console.WriteLine("Listening")
        Console.ReadLine()
        sh.Close()

    End Sub
End Class

編譯程式碼

以下範例示範編譯範例程式碼所需的命名空間。

using System;
using System.ServiceModel;
using System.Net.Security;
using System.ServiceModel.Description;
using System.Security.Cryptography.X509Certificates;
using System.Runtime.Serialization;

Imports System.ServiceModel
Imports System.Net.Security
Imports System.ServiceModel.Description
Imports System.Security.Cryptography.X509Certificates
Imports System.Runtime.Serialization

作法：設定 ProtectionLevel 屬性

簽署服務的所有訊息

簽署作業的所有訊息部分

保護錯誤訊息

保護錯誤訊息

保護訊息部分

保護訊息本文

範例

編譯程式碼

另請參閱

其他資源