/Source/facebook.Linq/Web/Facebook.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Configuration;

using System.Text;

using System.Globalization;

using System.Net;

using System.IO;

using System.Security.Cryptography;

using System.Xml.Serialization;

using System.Diagnostics;



namespace facebook.Web

{

	//[Remotable]

	class Facebook

	{

		static FacebookConfiguration Configuration;

		static Facebook()

		{

			Configuration = FacebookConfiguration.Current;

			APIKey = Configuration.APIKey;

			Secret = Configuration.Secret;

			ApplicationID = Configuration.ApplicationID;

			DefaultPage = Configuration.DefaultPage;

		}



		public static bool HasValidConfiguration

		{

			get

			{

				return  APIKey.IsNotNullOrEmpty() && ApplicationID.IsNotNullOrEmpty() && Secret.IsNotNullOrEmpty();

			}

		}



		internal static string APIKey { get; set; }



		public static string DefaultPage { get; set; }



		//[Remotable(false)]

		internal static string Secret { get; set; }



		internal static string ApplicationID { get; set; }



		public static bool IsSessionAuthenticated

		{

			get

			{

				return FacebookSession.Current.IsAuthenticated;

			}

		}



		private static string FACEBOOK_LOGIN_URL = @"http://www.facebook.com/login.php?api_key=";

		private static string FACEBOOK_CANVAS_PARAM = "&canvas";

		private static string FACEBOOK_VERSION_PARAM = "&v=1.0";

		public static string FacebookLoginUrl

		{

			get

			{

				return FACEBOOK_LOGIN_URL + APIKey + FACEBOOK_CANVAS_PARAM + FACEBOOK_VERSION_PARAM;;

			}

		}



		/// <summary>

		/// When an application requires a certain (new) permission, it needs to redirect the user to the URL provided by this method. After confirmation, HasApplicationPermission may be called again.

		/// </summary>

		/// <param name="perm"></param>

		/// <returns></returns>

		public string GetGrantAccessUrl(facebook.Types.Enums.Extended_Permissions perm)

		{

			//TODO: check for permission

			return "http://www.facebook.com/authorize.php?api_key=" + APIKey + "&v=1.0&ext_perm=" + perm.ToString();

		}	

	}

}