public async Task Parse(RssSource rssSource)
{
var _UserAgent = "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; WOW64; Trident/6.0)";
httpClient.DefaultRequestHeaders.Add("user-agent", _UserAgent);
var response = await httpClient.GetStringAsync(rssSource.Url);
XNamespace xmlns = "http://www.w3.org/2005/Atom";
XNamespace media = "http://search.yahoo.com/mrss/";
XDocument Feed = XDocument.Parse(response);
string group = rssSource.Group.Length > 1 ? rssSource.Group : Feed.Descendants("channel").Select(e => (string)e.Element("title").Value).First();
IEnumerable<Item> items = new List<Item>();
if (rssSource.Url.StartsWith("http://gdata.youtube.com/feeds/api/playlists/")) //parse Youtube Playlist RSS
{
//0 is link, 1 is image, 2 is title, 3 is description
string youtubeHtmlTemplate = "<p><a href=\"{0}\"><img src=\"{1}\" alt=\"\" width=300></a></p><p><a style=\"font-size: 15px; font-weight: bold; font-decoration: none;\" href=\"{0}\">{2}</a></p><p>{3}</p>";
items = from item in Feed.Descendants("item")
select new Item()
{
Title = item.Element("title").Value,
Subtitle = item.Element("pubDate").Value,
Description = item.Descendants(media + "thumbnail").Count() > 0 ? string.Format(youtubeHtmlTemplate, item.Element("link").Value, item.Descendants(media + "thumbnail").Select(e => (string)e.Attribute("url")).FirstOrDefault(), item.Element("title").Value, item.Element("description").Value.Substring(0, Math.Min(580, item.Element("description").Value.Length))) : string.Empty,
Image = item.Descendants(media + "thumbnail") != null ? item.Descendants(media + "thumbnail").Select(e => (string)e.Attribute("url")).FirstOrDefault() : string.Empty,
Group = @group,
};
items = items.Where(x => x.Description != string.Empty);
}
else
{
string audio_template = "<audio src=\"{0}\" controls autoplay>Your browser does not support the <code>audio</code> element.<br/><a href=\"{0}\">Link to file</a>.</audio><br/>";
var feeditems = AppSettings.RssMaxItemsPerFeed < 0
? Feed.Descendants("item")
: Feed.Descendants("item").Take(AppSettings.RssMaxItemsPerFeed);
items = from item in feeditems
select new Item()
{
Title = item.Element("title") != null ? item.Element("title").Value : string.Empty,
Subtitle = item.Element("pubDate") != null ? item.Element("pubDate").Value : string.Empty,
Description =
// TODO: perhaps this needs to use the url's MIME type to determine the tag for audio, video, PDFs, etc.?
(item.Element("enclosure") != null
? string.Format(audio_template, (string)(item.Element("enclosure").Attribute("url")))
: string.Empty)
+ (item.Element("description") != null
? (string)(item.Element("description").Value)
: string.Empty),
Image = item.Descendants(media + "thumbnail") != null ? item.Descendants(media + "thumbnail").Select(e => (string)e.Attribute("url")).FirstOrDefault() : "",
Group = @group,
};
}
if (items.ToList().Count > 0)
{
foreach (var item in items)
{
if (item.Image == null) //Attempt to parse an image out of the description if one is not returned in the RSS
item.Image = Regex.Match(item.Description, "(https?:)?//?[^'\"<>]+?.(jpg|jpeg|gif|png)").Value;
//Format dates to look cleaner
DateTime dateTimeResult = new DateTime();
if (DateTime.TryParse(item.Subtitle, out dateTimeResult))
item.Subtitle = dateTimeResult.ToString("ddd, d MMM yyyy");
RssData.Add(item);
};
}
else
{
await ServiceLocator.MessageService.ShowErrorAsync("Zero items retrieved from " + rssSource.Url, "Application Error");
}
}
public async Task Parse(RssSource rssSource)
{
var _UserAgent = "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; WOW64; Trident/6.0)";
httpClient.DefaultRequestHeaders.Add("user-agent", _UserAgent);
var response = await httpClient.GetStringAsync(rssSource.Url);
XNamespace xmlns = "http://www.w3.org/2005/Atom";
XNamespace media = "http://search.yahoo.com/mrss/";
XDocument Feed = XDocument.Parse(response);
string group = rssSource.Group.Length > 1 ? rssSource.Group : Feed.Descendants("channel").Select(e => (string)e.Element("title").Value).First();
IEnumerable<Item> items = new List<Item>();
if (rssSource.Url.StartsWith("http://gdata.youtube.com/feeds/api/playlists/")) //parse Youtube Playlist RSS
{
//0 is link, 1 is image, 2 is title, 3 is description
string youtubeHtmlTemplate = "<div style=\"color: #000000;font-family: Arial, Helvetica, sans-serif; font-size:12px; font-size: 12px; width: 555px;\"><table cellspacing=\"0\" cellpadding=\"0\" border=\"0\"><tbody><tr><td width=\"140\" valign=\"top\" rowspan=\"2\"><div style=\"border: 1px solid #999999; margin: 0px 10px 5px 0px;\"><a href=\"{0}\"><img alt=\"\" src=\"{1}\"></a></div></td><td width=\"256\" valign=\"top\"><div style=\"font-size: 12px; font-weight: bold;\"><a style=\"font-size: 15px; font-weight: bold; font-decoration: none;\" href=\"{0}\">{2}</a><br></div><div style=\"font-size: 12px; margin: 3px 0px;\"><span>{3}</span></div></td>";
items = from item in Feed.Descendants("item")
select new Item()
{
Title = item.Element("title").Value,
Subtitle = item.Element("pubDate").Value,
Description = item.Descendants(media + "thumbnail").Count() > 0 ? string.Format(youtubeHtmlTemplate, item.Element("link").Value, item.Descendants(media + "thumbnail").Select(e => (string)e.Attribute("url")).FirstOrDefault(), item.Element("title").Value, item.Element("description").Value.Substring(0, Math.Min(580, item.Element("description").Value.Length))):string.Empty,
Image = item.Descendants(media + "thumbnail") != null ? item.Descendants(media + "thumbnail").Select(e => (string)e.Attribute("url")).FirstOrDefault() : string.Empty,
Group = @group,
};
items = items.Where(x => x.Description != string.Empty);
}
else
{
string audio_template = "<audio src=\"{0}\" controls autoplay>Your browser does not support the <code>audio</code> element.</audio><br/>";
items = from item in Feed.Descendants("item")
select new Item()
{
Title = item.Element("title") != null ? item.Element("title").Value : string.Empty,
Subtitle = item.Element("pubDate") != null ? item.Element("pubDate").Value : string.Empty,
Description =
// TODO: perhaps this needs to use the url's MIME type to determine the tag for audio, video, PDFs, etc.?
( item.Element("enclosure") != null
? string.Format(audio_template, (string)(item.Element("enclosure").Attribute("url")))
: string.Empty )
+ ( item.Element("description") != null
? (string)(item.Element("description").Value)
: string.Empty ),
Image = item.Descendants(media + "thumbnail") != null ? item.Descendants(media + "thumbnail").Select(e => (string)e.Attribute("url")).FirstOrDefault() : "",
Group = @group,
};
}
if (items.ToList().Count > 0)
{
foreach (var item in items)
{
if (item.Image == null) //Attempt to parse an image out of the description if one is not returned in the RSS
item.Image = Regex.Match(item.Description, "(https?:)?//?[^'\"<>]+?.(jpg|jpeg|gif|png)").Value;
RssData.Add(item);
};
}
else
{
await ServiceLocator.MessageService.ShowErrorAsync("Zero items retrieved from " + rssSource.Url, "Application Error");
}
}