/AirLib/Slideshow.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Net.Sockets;

using System.Threading;

using System.IO;

using System.Diagnostics;



namespace AirLib

{

    public class Slideshow

    {

        #region Fields



        private Guid _sessionGuid = Guid.NewGuid();

        private List<string> _photoList = new List<string>();

        private string _appleTvIpAddress;

        private int _currentPhoto = 0;

        

        #endregion Fields

        



        #region Properties



        /// <summary>

        /// Gets the photo list.

        /// </summary>

        /// <value>

        /// The photo list.

        /// </value>

        public List<string> PhotoList

        {

            get { return _photoList; }

        }



        #endregion Properties



        #region Constructor



        /// <summary>

        /// Initializes a new instance of the <see cref="Slideshow"/> class.

        /// </summary>

        public Slideshow(string ipAddress, int streamHostPort)

        {

            _appleTvIpAddress = ipAddress;



            ReverseConnectionHandler eventHandler = new ReverseConnectionHandler(ipAddress, "event", _sessionGuid);

            eventHandler.EventRaised += new ReverseConnectionHandler.EventFiredDelegate(EventHandler_EventRaised);



            ReverseConnectionHandler photoEventHandler = new ReverseConnectionHandler(ipAddress, "photo", _sessionGuid);

            eventHandler.EventRaised += new ReverseConnectionHandler.EventFiredDelegate(PhotoEventHandler_EventRaised);



            ReverseConnectionHandler photoConnectionHandler = new ReverseConnectionHandler(_appleTvIpAddress, "slideshow", _sessionGuid);

            photoConnectionHandler.EventRaised += new ReverseConnectionHandler.EventFiredDelegate(ReverseConnectionHandler_EventRaised);



            

        }



        /// <summary>

        /// Event raised.

        /// </summary>

        /// <param name="eventMessage">The event message.</param>

        /// <returns></returns>

        byte[] EventHandler_EventRaised(string eventMessage)

        {

            Debug.WriteLine(eventMessage);

            return null;

        }



        /// <summary>

        /// Event raised.

        /// </summary>

        /// <param name="eventMessage">The event message.</param>

        /// <returns></returns>

        byte[] PhotoEventHandler_EventRaised(string eventMessage)

        {

            Debug.WriteLine(eventMessage);

            return null;

        }



        /// <summary>

        /// Reverses the connection handler_ event raised.

        /// </summary>

        /// <param name="eventMessage">The event message.</param>

        /// <returns>Response</returns>

        byte[] ReverseConnectionHandler_EventRaised(string eventMessage)

        {

            if(eventMessage.Contains("GET /slideshows/1/assets/1"))

            {            

                string body = Properties.Resources.SlideshowResponsePlist;

                string image = Convert.ToBase64String(File.ReadAllBytes(_photoList[_currentPhoto]));

                int photoNumber = _currentPhoto + 1;

                body = body.Replace("{1}", photoNumber.ToString());                

                body = body.Replace("{0}", image);

                byte[] bodyData = System.Text.Encoding.ASCII.GetBytes(body);



                string response = "HTTP/1.1 200 OK\n" +

                                "Content-Type: application/x-apple-binary-plist\n" +

                                "Content-Length: " + bodyData.Length + "\n\n";



               byte[] byData = System.Text.Encoding.ASCII.GetBytes(response + body);

               _currentPhoto++;



               return byData;

            }

            else

            {

                return null;

            }



        }



        #endregion Constructor



        #region Methods



      



        public void Start()

        {



            int length = Encoding.ASCII.GetBytes(Properties.Resources.SlideshowPutPlist).Length;



            string request = "PUT /slideshows/1 HTTP/1.1\n" +

            "Content-Type: text/x-apple-plist+xml\n" +

            "Content-Length: " + length + "\n" +

            "User-Agent: MediaControl/1.0\n" +

            "X-Apple-Session-ID: " + _sessionGuid.ToString() + "\n\n";

            request += Properties.Resources.SlideshowPutPlist + "\n\n";               





            using (TcpClient tcpClient = new TcpClient(_appleTvIpAddress, AppleTv.AppleTvPort))

            {



                byte[] byData = System.Text.Encoding.ASCII.GetBytes(request);



                //get the client stream to read data from.

                NetworkStream clientStream = tcpClient.GetStream();



                SendMessage(clientStream, request);                                



                byte[] buffer = new byte[10000];



                int recieved = clientStream.Read(buffer, 0, buffer.Length);

                string str = Encoding.ASCII.GetString(buffer, 0, recieved);



               



                //Now start doing a "keepalive"

                //while (true)

                //{

                //    //Simply send the characters "ok" every two seconds

                //    //Todo: Determine what the actual message that apple products send

                //    //SendMessage(clientStream, "ok");

                //    Thread.Sleep(1000);

                //}

                                

            }

        }



        /// <summary>

        /// Sends a message across the NetworkStream

        /// </summary>

        /// <param name="clientStream">The stream to send the message down</param>

        /// <param name="message">The message to send</param>

        public void SendMessage(NetworkStream clientStream, string message)

        {

            byte[] buffer = new ASCIIEncoding().GetBytes(message);

            try

            {

                clientStream.Write(buffer, 0, buffer.Length);

                clientStream.Flush();

            }

            catch (System.IO.IOException e)

            {

                Debug.WriteLine("IOException: " + e.Message);

            }

        }



        #endregion Methods





    }

}