WCF .NET 4.0 Console Hosted Json Rest Secure HTTP Web Service with Authentication and Roles

using System;
using System.Collections.Generic;
using System.Linq;
using System.ServiceModel;
using System.ServiceModel.Activation;
using System.ServiceModel.Web;
using System.Text;
using System.Security.Permissions;
using log4net;
using System.IO;
using System.Runtime.Serialization;

namespace WtfService
{
    // Start the service and browse to http://<machine_name>:<port>/Service1/help to view the service's generated help page
    // NOTE: By default, a new instance of the service is created for each call; change the InstanceContextMode to Single if you want
    // a single instance of the service to process all calls.	
    [ServiceContract]
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    [ServiceBehavior(InstanceContextMode = InstanceContextMode.PerCall)]
    // NOTE: If the service is renamed, remember to update the global.asax.cs file
    public class WtfSvc
    {
        private static readonly ILog log = LogManager.GetLogger(typeof(WtfSvc));

        /// <summary>
        /// Demonstrates http get where parameters are passed in the URL.
        /// Also requires the user to be in the role of 'WtfUser'.
        /// </summary>
        /// <param name="firstName"></param>
        /// <param name="lastName"></param>
        /// <returns></returns>
        [WebGet(UriTemplate = "HelloWorld/{firstName}/{lastName}")]
        [PrincipalPermission(SecurityAction.Demand, Role = "WtfUser")]
        public string HelloWorld(string firstName, string lastName)
        {
            return string.Format("Hello {0} {1}", firstName, lastName);
        }

        /// <summary>
        /// Demonstrates http post where request body contains two parameters of simple type.
        /// Also requires the user to be in the role of 'WtfUser'
        /// </summary>
        /// <param name="firstName">comes from the json content of the body of the post e.g. "{\"firstName\" : \"John\", \"lastName\" : \"Doe\" } }"</param>
        /// <param name="lastName">comes from the json content of the body of the post e.g. "{\"firstName\" : \"John\", \"lastName\" : \"Doe\" } }"</param>
        /// <returns></returns>
        [WebInvoke(Method = "POST", UriTemplate = "HelloWorldPostSimple")]
        [PrincipalPermission(SecurityAction.Demand, Role = "WtfUser")]
        public string HelloWorldPostSimple(string firstName, string lastName)
        {
            return string.Format("Hello {0} {1}", firstName, lastName);
        }

        /// <summary>
        /// Demonstrates http post where request body contains the json string representing an object of type Person.
        /// Also requires the user to be in the role of 'WtfUser'
        /// </summary>
        /// <param name="person">comes from the json content of the body of the post e.g. "{\"person\":{\"FirstName\" : \"John\", \"LastName\" : \"Doe\" } }"</param>
        /// <returns></returns>
        [WebInvoke(Method = "POST", UriTemplate = "HelloWorldPostComplex")]
        [PrincipalPermission(SecurityAction.Demand, Role = "WtfUser")]
        public string HelloWorldPostComplex(Person person)
        {
            return string.Format("Hello {0} {1}", person.FirstName, person.LastName);
        }

    }

    public class Person
    {
        public string FirstName { get; set; }
        public string LastName { get; set; }
    }

}