public async Task <bool> RefreshAsync(RssFeed rssFeed, CancellationToken cancellationToken)
{
using var client = _clientFactory.CreateClient(RefreshRssFeedsServiceProviderExtensions.DefaultHttpClient);
using var response = await client.GetAsync(rssFeed.Uri, cancellationToken);
if (!response.IsSuccessStatusCode)
{
_logger.LogWarning($"Could not refresh feed {rssFeed.Id} from {rssFeed.Uri}: response status: {response.StatusCode}, content: {await response.Content?.ReadAsStringAsync()}");
return(false);
}
_logger.LogInformation($"Successfully download feed from {rssFeed.Uri}");
FeedParseResult parseResult;
if (!((parseResult = await _feedParser.ParseAsync(await response.Content.ReadAsStreamAsync(), cancellationToken))?.IsValid ?? false))
{
_logger.LogWarning($"Could not parse feed response from {rssFeed.Uri} - content: {await response.Content.ReadAsStringAsync()}");
return(false);
}
_logger.LogDebug($"Feed {rssFeed.Uri} was last updated {parseResult.Feed.LastUpdated} - our version was updated: {rssFeed.LastUpdated}");
if (!rssFeed.LastUpdated.HasValue || parseResult.Feed.LastUpdated > rssFeed.LastUpdated)
{
_logger.LogTrace($"Feed {rssFeed.Uri} has new items...updating articles");
await UpdateFeedItemsAsync(rssFeed, parseResult);
rssFeed.LastUpdated = parseResult.Feed.LastUpdated;
rssFeed.Link = parseResult.Feed.Link;
return(true);
}
return(false);
}
public async Task <ActionResult <object> > Read([Required] string uri)
{
if (!Uri.TryCreate(HttpUtility.UrlDecode(uri), UriKind.Absolute, out var feedUri))
{
_logger.LogWarning($"Could not parse uri {uri}");
return(BadRequest());
}
using var client = _clientFactory.CreateClient(RefreshRssFeedsServiceProviderExtensions.DefaultHttpClient);
using var response = await client.GetAsync(feedUri.ToString(), CancellationToken.None);
if (!response.IsSuccessStatusCode)
{
_logger.LogWarning($"Could not load feed {feedUri}: response status: {response.StatusCode}, content: {await response.Content?.ReadAsStringAsync()}");
return(BadRequest());
}
_logger.LogInformation($"Successfully download feed from {feedUri}");
FeedParseResult parseResult;
if (!((parseResult = await _feedParser.ParseAsync(await response.Content.ReadAsStreamAsync(), CancellationToken.None))?.IsValid ?? false))
{
_logger.LogWarning($"Could not parse feed response from {feedUri} - content: {await response.Content.ReadAsStringAsync()}");
return(BadRequest());
}
return(new { Title = parseResult.FeedTitle, parseResult.Feed.LastUpdated, parseResult.Feed.Link });
}