WebService的两种用户验证方式

1,使用SoapHeader传递和验证用户
Web Service端的代码:
1.1先创建一个继承自System.Web.Services.Protocols.SoapHeader

   CredentialSoapHeader类:

   public class CredentialSoapHeader : SoapHeader

   {
private string _userName ;;
private string _userPassword ;;

public string UserName
{

  get { return _userName ;; }

  set { _userName = value ;; }
}

public string UserPassword
{

  get { return _userPassword ;; }

  set { _userPassword = value ;; }
}

   }


  1.2创建对外发布的Web Service方法

  public class MyService : System.Web.Services.WebService

  {
private CredentialSoapHeader m_credentials ;;
public CredentialSoapHeader Credentails
{

  get { return m_credentials ;; }

  set { m_credentials = value ;; }
}

  

   //对外发布的服务

   [WebMethod(BufferResponse = true,Description = "欢迎方法" ,CacheDuration = 0,EnableSession=false,

   MessageName = "HelloFriend",TransactionOption = TransactionOption.Required)]
[SoapHeader("Credentails")]
public string Welcome(string userName)
{

  this.VerifyCredential(this) ;;

  return "Welcome " + userName ;;
}


   //验证是否合法

   private void VerifyCredential(MyService s)
{

  if ( s.Credentails == null || s.Credentails.UserName == null || s.Credentails.UserPassword == null )

  {

   throw new SoapException("验证失败",SoapException.ClientFaultCode,"Security") ;;

  }

   //在这里可以进一步进行自定义的用户验证
}

  }


  创建使用MyService的客户端(本处使用WinForm来做实例)

  先把MyService的引用添加进来

  public class ClientForm : System.Windows.Forms.Form

  {
public ClientForm()
{

  MyService s = new MyService() ;;

  this.InitWebServiceProxy(s) ;;

  string temp = s.Welcome("test") ;;

  

  MessageBox.Show(temp) ;;
}

private void InitWebServiceProxy(MyService s)
{

  CredentialSoapHeader soapHeader = new CredentialSoapHeader() ;;

  soapHeader.UserName = "test" ;;

  soapHeader.UserPassword = "test" ;;

  s.CredentialSoapHeaderValue = soapHeader ;;


  string urlSettings = null ;; //这里可以从配置文件中获取


  if (urlSettings != null )

  {

   s.Url = urlSettings ;;

  }


  s.Credentials = (System.Net.NetworkCredential)CredentialCache.DefaultCredentials ;;
}

  }

  

  
2,使用验证票(AuthorizationTicket)
using System.Web.Security ;;
[WebMethod()]
public string GetAuthorizationTicket(string userName , string password)
{

   //这里可以做一些自定义的验证动作,比如在数据库里验证用户的合法性等

   FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(userName, false, timeOut) ;;

   string encryptedTicket = FormsAuthentication.Encrypt(ticket) ;;

   Context.Cache.Insert(encryptedTicket, userName, null, DateTime.Now.AddMinutes(timeout), TimeSpan.Zero) ;;

   return encryptedTicket ;;
}

private bool IsTicketValid(string ticket, bool IsAdminCall)
{

   if (ticket == null || Context.Cache[ticket] == null)

   {

  // not authenticated

  return false;;

   }

   else

   {

   //这里再做一些验证,比如在数据库里验证用户的合法性等

   }
}

[WebMethod()]
public Book GetBookByBookId(int bookId)
{

   if (IsTicketValid)

   {

   //验证通过才可以执行特定操作了

   }
}

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