private async void GetGalNetNewsAsync(CancellationTokenSource cancelToken, bool ignoreCache = false)
{
using (UserDialogs.Instance.Loading("Loading", () => cancelToken.Cancel(), null, true, MaskType.Clear))
{
try
{
// get the news feed
string json = String.Empty;
GalNetService news = new GalNetService();
(json, LastUpdated) = await news.GetData(cancelToken, ignoreCache).ConfigureAwait(false);
// parse the json data
GalNetNewsList.Clear();
await Task.Run(() =>
{
List <NewsItem> fullNews = JsonConvert.DeserializeObject <List <NewsItem> >(json, NewsItemConverter.Instance);
foreach (NewsItem item in fullNews.Where(o => !String.IsNullOrEmpty(o.Body)).OrderByDescending(o => o.PublishDateTime).Take(15))
{
item.ClassifyArticle();
Device.BeginInvokeOnMainThread(() => GalNetNewsList.Add(item));
}
}).ConfigureAwait(false);
}
catch (OperationCanceledException)
{
SetMessage("GalNet News download was cancelled or timed out.", true);
}
catch (HttpRequestException ex)
{
string err = ex.Message;
int start = err.IndexOf("OPENSSL_internal:", StringComparison.OrdinalIgnoreCase);
if (start > 0)
{
start += 17;
int end = err.IndexOf(" ", start, StringComparison.OrdinalIgnoreCase);
err = String.Format("SSL Error ({0})", err.Substring(start, end - start).Trim());
}
else if (err.IndexOf("Error:", StringComparison.OrdinalIgnoreCase) > 0)
{
err = err.Substring(err.IndexOf("Error:", StringComparison.OrdinalIgnoreCase) + 6).Trim();
}
SetMessage(String.Format("Network Error: {0}", err), true);
}
catch (Exception ex)
{
if (ex.Message.Contains("unexpected end of stream"))
{
SetMessage("GalNet News download was cancelled.", true);
}
else
{
SetMessage(String.Format("Error: {0}", ex.Message), true);
}
}
}
}
private async void GetGalNetNewsAsync(CancellationTokenSource cancelToken, bool ignoreCache = false)
{
using (UserDialogs.Instance.Loading("Loading", () => cancelToken.Cancel(), null, true, MaskType.Clear))
{
try
{
List <NewsArticle> newsList = new List <NewsArticle>();
GalNetService news = GalNetService.Instance();
(newsList, LastUpdated) = await news.GetData(12, settings.NewsCacheTime, cancelToken, ignoreCache : ignoreCache).ConfigureAwait(false);
GalNetNewsList.Clear();
if (newsList?.Any() == false)
{
SetMessage("No GalNet articles found.", false);
}
else
{
foreach (NewsArticle item in newsList)
{
GalNetNewsList.Add(item);
}
}
}
catch (OperationCanceledException)
{
SetMessage("GalNet News download was cancelled or timed out.", true);
}
catch (HttpRequestException ex)
{
string errorMessage = ex.Message;
if (errorMessage.IndexOf("OPENSSL_internal:", StringComparison.OrdinalIgnoreCase) > 0)
{
errorMessage = "A secure connection could not be established.";
}
else if (errorMessage.IndexOf("Error:", StringComparison.OrdinalIgnoreCase) > 0)
{
errorMessage = errorMessage.Substring(errorMessage.IndexOf("Error:", StringComparison.OrdinalIgnoreCase) + 6).Trim();
}
SetMessage($"Network Error: {errorMessage}", true);
}
catch (Exception ex)
{
if (ex.Message.Contains("unexpected end of stream"))
{
SetMessage("GalNet News download was cancelled.", true);
}
else
{
SetMessage($"Error: {ex.Message}", true);
}
}
}
}