public static void LoadFBMLPage(FacebookService fbService, bool autoAdd, HttpRequest request, HttpResponse response)
{
string sessionKey = null;
string userId = null;
string inCanvas = request[REQUEST_IN_CANVAS];
fbService.IsDesktopApplication = false;
if (string.IsNullOrEmpty(fbService.SessionKey) || string.IsNullOrEmpty(fbService.UserId))
{
sessionKey = request[REQUEST_SESSION_KEY];
userId = request[REQUEST_USER_ID];
}
else
{
sessionKey = fbService.SessionKey;
userId = fbService.UserId;
}
// When the user uses the facebook login page, the redirect back here will will have the auth_token in the query params
string authToken = request.QueryString[QUERY_AUTH_TOKEN];
// We have already established a session on behalf of this user
if (!String.IsNullOrEmpty(sessionKey))
{
fbService.SessionKey = sessionKey;
fbService.UserId = userId;
}
//// This will be executed when facebook login redirects to our page
else if (!String.IsNullOrEmpty(authToken))
{
fbService.CreateSession(authToken);
}
else
{
//response.Redirect(@"http://www.facebook.com/login.php?api_key=" + fbService.ApplicationKey + @"&v=1.0");
response.Write("<fb:redirect url=\"" + FACEBOOK_LOGIN_URL + fbService.ApplicationKey + @"&v=1.0" + "\"/>");
response.End();
}
if (!fbService.IsAppAdded() && autoAdd)
{
if ((!string.IsNullOrEmpty(inCanvas) && inCanvas.Equals("1")) || (!string.IsNullOrEmpty(request.Url.ToString()) && request.Url.ToString().ToLower().Contains("facebook.com")))
{
response.Write("<fb:redirect url=\"" + FACEBOOK_ADD_URL + fbService.ApplicationKey + @"&v=1.0" + "\"/>");
response.End();
}
else
{
response.Redirect(FACEBOOK_ADD_URL + fbService.ApplicationKey + @"&v=1.0");
}
}
}
private void EstablishSession(string sessionKey, string userId, string authToken, bool retry)
{
try
{
object sessionKeyFromSession = _useSession ? _session[SESSION_SESSION_KEY] :
_request.Cookies[SESSION_SESSION_KEY];
if (String.IsNullOrEmpty(sessionKey) && sessionKeyFromSession != null)
{
sessionKey = _useSession ? sessionKeyFromSession.ToString() : ((HttpCookie)sessionKeyFromSession).Value;
userId = _useSession ? _session[SESSION_USER_ID].ToString() : _request.Cookies[SESSION_USER_ID].Value;
}
if (!String.IsNullOrEmpty(sessionKey))
{
_fbService.SessionKey = sessionKey;
_fbService.UserId = userId;
SetSessionInfo(sessionKey, userId);
}
//// This will be executed when facebook login redirects to our page
else if (!String.IsNullOrEmpty(authToken))
{
_fbService.CreateSession(authToken);
SetSessionInfo(_fbService.SessionKey, _fbService.UserId);
}
else
{
RedirectToLogin();
return;
}
TryAddApp();
}
catch (Facebook.Exceptions.FacebookTimeoutException)
{
if (retry)
{
ClearSessionInfo();
EstablishSession(null, null, authToken, false);
}
else
{
throw;
}
}
}