1     [WebService(Namespace = "http://tempuri.org/")]
 2     [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
 3     //[System.ComponentModel.ToolboxItem(false)]
 4     // 若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务，请取消对下行的注释。
 5     //[System.Web.Script.Services.ScriptService]
 6     public class WebService1 : System.Web.Services.WebService
 7     {
 8         public MySoapHeader soapHeader = new MySoapHeader();
 9 
10 
11         [MyExtension]
12         [SoapHeader("soapHeader")]
13         public string HelloWorld()
14         {
15             return "duile";
16         }
17     }
18 
19     public class MySoapHeader : SoapHeader
20     {
21         public string Pwd { get; set; }
22         public string Act { get; set; }
23     }
24 
25     [AttributeUsage(AttributeTargets.Method)]
26     public class MyExtensionAttribute : SoapExtensionAttribute
27     {
28         int _priority = 1;
29 
30         public override int Priority
31         {
32             get { return _priority; }
33             set { _priority = value; }
34         }
35 
36         public override Type ExtensionType
37         {
38             get { return typeof(MyExtension); }
39         }
40     }
41 
42     public class MyExtension : SoapExtension
43     {
44 
45         public override void Initialize(object initializer)
46         {
47             string a = "b";
48         }
49         //这个override的方法会被调用四次
50         //分别是SoapMessageStage的BeforeSerialize,AfterSerialize,BeforeDeserialize,AfterDeserialize
51         public override void ProcessMessage(SoapMessage message)
52         {
53             if (message.Stage == SoapMessageStage.AfterDeserialize)//反序列化之后处理
54             {
55                 bool check = false;
56                 foreach (SoapHeader header in message.Headers)
57                 {
58                     if (header is MySoapHeader)
59                     {
60                         MySoapHeader myHeader = (MySoapHeader)header;
61                         //解密
62 
63                         if (myHeader.Pwd == "huwei" || myHeader.Act == "12456")
64                         {
65                             check = true;
66                             break;
67                         }
68                     }
69                 }
70                 if (!check)
71                     throw new SoapHeaderException("认证失败", SoapException.ClientFaultCode);
72             }
73         }
74         public override Object GetInitializer(Type type)
75         {
76             return GetType();
77         }
78         public override Object GetInitializer(LogicalMethodInfo info, SoapExtensionAttribute attribute)
79         {
80             return null;
81         }
82     }