/// <summary>
/// Parses the session value from a cookie.
/// </summary>
/// <param name="appSecret">
/// The app Secret.
/// </param>
/// <param name="cookieValue">
/// The session value.
/// </param>
/// <returns>
/// The Facebook session object.
/// </returns>
internal static FacebookSession ParseCookieValue(string appSecret, string cookieValue)
{
Contract.Requires(!String.IsNullOrEmpty(appSecret));
Contract.Requires(!String.IsNullOrEmpty(cookieValue));
Contract.Requires(!cookieValue.Contains(","), "Session value must not contain a comma.");
// var cookieValue = "\"access_token=124973200873702%7C2.OAaqICOCk_B4sZNv59q8Yg__.3600.1295118000-100001327642026%7Cvz4H9xjlRZPfg2quCv0XOM5g9_o&expires=1295118000&secret=lddpssZCuPoEtjcDFcWtoA__&session_key=2.OAaqICOCk_B4sZNv59q8Yg__.3600.1295118000-100001327642026&sig=1d95fa4b3dfa5b26c01c8ac8676d80b8&uid=100001327642026\"";
// var result = FacebookSession.Parse("3b4a872617be2ae1932baa1d4d240272", cookieValue);
// Parse the cookie
var dictionary = new JsonObject();
var parts = cookieValue.Replace("\"", string.Empty).Split('&');
foreach (var part in parts)
{
if (!string.IsNullOrEmpty(part) && part.Contains("="))
{
var nameValue = part.Split('=');
if (nameValue.Length == 2)
{
var s = FacebookUtils.UrlDecode(nameValue[1]);
dictionary.Add(nameValue[0], s);
}
}
}
var signature = GenerateSessionSignature(appSecret, dictionary);
if (dictionary.ContainsKey("sig") && dictionary["sig"].ToString() == signature)
{
return(new FacebookSession(dictionary));
}
return(null);
}
