Authentication Policy in Web Service-use custom SOAP Headers

You can customize the SOAP header to restrict the service calling user range from 1 using System;
2 using System. Web;
3 using System. Web. Services;
4 using System. Web. Services. Protocols;
5
6 [WebService (Namespace = "http://livebaby.cn")]
7 [WebServiceBinding (ConformsTo = WsiProfiles. BasicProfile1_1)]
8 public class Service: System. Web. Services. WebService
9 {
10 public SecurityHeader currentUser;
11 public Service ()
12 {
13
14 // if you use the designed component, uncomment the following line
15 // InitializeComponent ();
16}
17 [WebMethod, SoapHeader ("currentUser")]
18 public string GetResult (string queryString)
19 {
20 if (ValidateUser (currentUser. UserName, currentUser. UserPass ))
21 {
22 return "the string you sent is:" + queryString;
23}
24 else
25 return "Sorry:" + currentUser. UserName + ", you are not a legal user! ";
26}
27 // check the SOAP HEADER
28 private bool ValidateUser (string user, string pass)
29 {
30 if (user. Equals ("user") & pass. Equals ("user "))
31 return true;
32 else
33 return false;
34}
35}
36 // custom Soap Header Class
37 public class SecurityHeader: System. Web. Services. Protocols. SoapHeader
38 {
39 public string UserName;
40 public string UserPass;
41}

The following is the client's call of 1 using System;
2 using System. Collections. Generic;
3 using System. ComponentModel;
4 using System. Data;
5 using System. Drawing;
6 using System. Text;
7 using System. Windows. Forms;
8
9 namespace SoapHeader
10 {
11 public partial class Form1: Form
12 {
13 public Form1 ()
14 {
15 InitializeComponent ();
16}
17
18 private void button_Invoke_Click (object sender, EventArgs e)
19 {
20 SoapHeader. localhost. SecurityHeader header = new SoapHeader. localhost. SecurityHeader ();
21 header. UserName = textBox_User.Text;
22 header. UserPass = textBox_Pass.Text;
23 SoapHeader. localhost. Service service = new SoapHeader. localhost. Service ();
24 service. SecurityHeaderValue = header;
25 this. textBox_Output.Text + = service. GetResult (this. textBox_Input.Text) + Environment. NewLine;
26}
27}
28}
29