private bool HandleAsExpiredToken(FacebookOAuthException OAuth_ex)
{
bool _HandleAsExpiredToken = false;
if (OAuth_ex.ErrorCode == 190) //OAuthException
{
switch (OAuth_ex.ErrorSubcode)
{
case 458: //App Not Installed
_HandleAsExpiredToken = true;
break;
case 459: //User Checkpointed
_HandleAsExpiredToken = true;
break;
case 460: //Password Changed
_HandleAsExpiredToken = true;
break;
case 463: //Expired
_HandleAsExpiredToken = true;
break;
case 464: //Unconfirmed User
_HandleAsExpiredToken = true;
break;
case 467: //Invalid access token
_HandleAsExpiredToken = true;
break;
default:
_HandleAsExpiredToken = false;
break;
}
}
else if (OAuth_ex.ErrorCode == 102)
{
//API Session. Login status or access token has expired,
//been revoked, or is otherwise invalid
_HandleAsExpiredToken = true;
}
else if (OAuth_ex.ErrorCode == 10)
{
//API Permission Denied. Permission is either not granted or has been removed -
//Handle the missing permissions
_HandleAsExpiredToken = false;
}
else if (OAuth_ex.ErrorCode >= 200 && OAuth_ex.ErrorCode <= 299)
{
//API Permission (Multiple values depending on permission).
//Permission is either not granted or has been removed - Handle the missing permissions
_HandleAsExpiredToken = false;
}
return(_HandleAsExpiredToken);
}
private static void HandleException(string url, Exception e, out Exception resultException)
{
resultException = null;
string message = null;
HttpStatusCode statusCode = HttpStatusCode.OK;
string type = null;
if (e is WebException)
{
WebException webException = (WebException)e;
HttpWebResponse response = (HttpWebResponse)webException.Response;
message = response.GetBody();
statusCode = response.StatusCode;
dynamic jsonResult = JsonConvert.DeserializeObject(message);
if (jsonResult != null && jsonResult.error != null)
{
if (jsonResult.error.type != null)
{
type = jsonResult.error.type;
}
else
{
type = jsonResult.error;
}
}
switch (type)
{
case "OAuthException":
case "190":
resultException = new FacebookOAuthException(type, message);
break;
default:
resultException = new FacebookApiException(type, message);
break;
}
}
else
{
message = e.Message;
}
// replacing ; character since it's our delimiter
url = url.Replace(";", "%3b");
message = message.Replace(";", "%3b");
StringBuilder sb = new StringBuilder();
sb.AppendFormat("{0};{1};{2};{3}", (int)statusCode, statusCode, url, message);
Logger.Current.Error("GraphAPI.HandleException", sb.ToString(), e);
}
protected override void OnException(ExceptionContext filterContext)
{
if (filterContext.Exception is FacebookApiLimitException)
{
//Status message banner notifying user to try again later
filterContext.ExceptionHandled = true;
ViewBag.GlobalStatusMessage = "Facebook Graph API limit reached, Please try again later...";
}
else if (filterContext.Exception is FacebookOAuthException)
{
FacebookOAuthException OAuth_ex = (FacebookOAuthException)filterContext.Exception;
if (OAuth_ex.ErrorCode == 190 || OAuth_ex.ErrorSubcode > 0)
{
filterContext.ExceptionHandled = true;
filterContext.Result = GetFacebookLoginURL();
}
else
{
//redirect to Facebook Custom Error Page
ViewBag.ErrorMessage = filterContext.Exception.Message;
filterContext.ExceptionHandled = true;
filterContext.Result = RedirectToAction("Index", "Error");
}
}
else if (filterContext.Exception is FacebookApiException)
{
//redirect to Facebook Custom Error Page
ViewBag.ErrorMessage = filterContext.Exception.Message;
filterContext.ExceptionHandled = true;
filterContext.Result = RedirectToAction("Index", "Error");
}
else
{
base.OnException(filterContext);
}
}
public static ExceptionWithCode FacebookOauthException(FacebookOAuthException fbOauthException)
{
return(new ExceptionWithCode(40001, fbOauthException.Message, fbOauthException));
}