-->

  <role rolename="tomcat"/>
  <role rolename="role1"/>
  <user username="admin" password="admin" roles="manager-gui"/>
  <user username="preetham" password="kinney" roles="tomcat,role1"/>
  <user username="user" password="password" roles="role1"/>

</tomcat-users>



  <security-constraint>
    <web-resource-collection>
      <web-resource-name>HTML Manager interface (for humans)</web-resource-name>
      <url-pattern>/html/*</url-pattern>
    </web-resource-collection>
    <auth-constraint>
       <role-name>manager-gui</role-name>
	   <role-name>role1</role-name>
    </auth-constraint>
  </security-constraint>

      request = (HttpWebRequest)WebRequest.Create(url);
                        request.Method = "GET";
                        request.KeepAlive = true;
                        request.PreAuthenticate = true;
                        credidentials = uname + ":" + pass;
                        authorization = Convert.ToBase64String(Encoding.Default.GetBytes(credidentials));
                        string t = Encoding.UTF8.GetString(Convert.FromBase64String(authorization));
                        request.Headers["Authorization"] = "Basic " + authorization;
                        HttpWebResponse response = (HttpWebResponse)request.GetResponse();
                        string myResponse = "";