/// <summary>
/// Gets a default list of feeds for the current user's region, with a fall back to English.
/// </summary>
/// <returns></returns>
public static List <FeedBookmark> GetDefaultRegionalFeeds()
{
if (_defaultFeeds == null)
{
try
{
// if the default feeds haven't been loaded yet, load xml from sever
using (var client = new CompressionWebClient())
{
// use our special client that has a lower timeout and uses compression by default
string defaultFeedsData = client.DownloadString(DEFAULT_FEEDS_URL);
// deserialize feeds from xml file
var serializer = new XmlSerializer(typeof(RegionalFeedBookmarksCollection));
using (var reader = new StringReader(defaultFeedsData))
{
var loadedFeeds = (RegionalFeedBookmarksCollection)serializer.Deserialize(reader);
_defaultFeeds = new Dictionary <string, List <FeedBookmark> >();
foreach (var region in loadedFeeds)
{
_defaultFeeds[region.RegionCode] = region.FeedBookmarks;
}
}
}
}
catch (Exception ex)
{
ServiceRegistration.Get <ILogger>().Warn("Unable to load default news feeds xml from server: {0}", ex.Message);
// return an empty list, so next time this method is called it will try to download the default feeds again
return(new List <FeedBookmark>());
}
}
// find the best matching list of feeds for the user's culture
List <FeedBookmark> result;
var culture = ServiceRegistration.Get <ILocalization>().CurrentCulture;
// first try to get feeds for this language and region
if (_defaultFeeds.TryGetValue(culture.Name, out result))
{
return(result.ToList());
}
// then try to get feeds for this language
if (_defaultFeeds.TryGetValue(culture.TwoLetterISOLanguageName, out result))
{
return(result.ToList());
}
// fallback is always the generic english feeds
return(_defaultFeeds["en"].ToList());
}
/// <summary>
/// Gets a default list of feeds for the current user's region, with a fall back to English.
/// </summary>
/// <returns></returns>
public static List<FeedBookmark> GetDefaultRegionalFeeds()
{
if (_defaultFeeds == null)
{
try
{
// if the default feeds haven't been loaded yet, load xml from sever
using (var client = new CompressionWebClient())
{
// use our special client that has a lower timeout and uses compression by default
string defaultFeedsData = client.DownloadString(DEFAULT_FEEDS_URL);
// deserialize feeds from xml file
var serializer = new XmlSerializer(typeof(RegionalFeedBookmarksCollection));
using (var reader = new StringReader(defaultFeedsData))
{
var loadedFeeds = (RegionalFeedBookmarksCollection) serializer.Deserialize(reader);
_defaultFeeds = new Dictionary<string, List<FeedBookmark>>();
foreach (var region in loadedFeeds)
_defaultFeeds[region.RegionCode] = region.FeedBookmarks;
}
}
}
catch (Exception ex)
{
ServiceRegistration.Get<ILogger>().Warn("Unable to load default news feeds xml from server: {0}", ex.Message);
// return an empty list, so next time this method is called it will try to download the default feeds again
return new List<FeedBookmark>();
}
}
// find the best matching list of feeds for the user's culture
List<FeedBookmark> result;
var culture = ServiceRegistration.Get<ILocalization>().CurrentCulture;
// first try to get feeds for this language and region
if (_defaultFeeds.TryGetValue(culture.Name, out result))
return result.ToList();
// then try to get feeds for this language
if (_defaultFeeds.TryGetValue(culture.TwoLetterISOLanguageName, out result))
return result.ToList();
// fallback is always the generic english feeds
return _defaultFeeds["en"].ToList();
}
protected override string DownloadJSON(string url)
{
var webClient = new CompressionWebClient(EnableCompression)
{
Encoding = Encoding.UTF8
};
foreach (var headerEntry in Headers)
{
webClient.Headers[headerEntry.Key] = headerEntry.Value;
}
LIMITER.RateLimit().Wait();
try
{
return(webClient.DownloadString(url));
}
finally
{
LIMITER.RequestDone();
}
}
protected override string DownloadJSON(string url)
{
bool retry = false;
lock (_requestSync)
{
if (_denyRequestsUntilTime.HasValue)
{
if (RequestsDisabled)
{
return(null);
}
_failedRequests = 0;
_denyRequestsUntilTime = null;
}
}
var webClient = new CompressionWebClient(EnableCompression)
{
Encoding = Encoding.UTF8
};
foreach (var headerEntry in Headers)
{
webClient.Headers[headerEntry.Key] = headerEntry.Value;
}
LIMITER.RateLimit().Wait();
try
{
string fullUrl = Mirrors[_currentMirror] + url;
string json = webClient.DownloadString(fullUrl);
if (_failedRequests > 0)
{
_failedRequests--;
}
return(json);
}
catch (WebException ex)
{
if (ex.Status == WebExceptionStatus.Timeout ||
(ex.Response != null &&
(
(((HttpWebResponse)ex.Response).StatusCode == HttpStatusCode.ServiceUnavailable ||
((HttpWebResponse)ex.Response).StatusCode == HttpStatusCode.RequestTimeout)
)))
{
//Rate limiting
_failedRequests++;
if (_failedRequests >= MAX_FAILED_REQUESTS)
{
DisableRequestsTemporarily();
return(null);
}
_currentMirror = (_currentMirror + 1) % Mirrors.Count;
retry = true;
}
else
{
throw;
}
}
finally
{
LIMITER.RequestDone();
}
if (retry)
{
return(DownloadJSON(url));
}
return(null);
}