/// <summary>
/// Parse out an article by URL and return a strongly typed object
/// </summary>
/// <param name="url"></param>
/// <returns></returns>
public DiffBotArticleResultModel Article( string url, bool useHtml = false )
{
var model = new DiffBotArticleResultModel( );
System.Uri uri;
if (!IsValidUrl( url, out uri )) // no need to waste cycles on an incorrect url
return model;
try
{
var source = GetWebClient().DownloadString(
GetEndpointUrl( EndPoints.Article, url, useHtml )
);
model = model.Create( source );
}
catch // if it fails, try using a backup regex
{
var html = DownloadUrlAsString( url );
if (!string.IsNullOrWhiteSpace( url ))
{
model.title = GetTitleFromHtmlString( html );
}
}
return model;
}
/// <summary>
/// Gets a basic 300 word preview for this article, or if this is a video, returns the proper embed tag for the video contents
/// </summary>
/// <param name="article"></param>
/// <returns></returns>
public string ArticleGetPreview( DiffBotArticleResultModel article )
{
var description = "";
// check for videos
if (article.media.Count > 0)
{
foreach( var media in article.media )
{
if ( string.IsNullOrEmpty(description)
&& media.type == "video"
&& (media.primary || article.media.Count == 1 )
)
{
description = string.Format( VideoYouTubeTemplate, media.link );
continue;
}
}
}
if (string.IsNullOrWhiteSpace( article.text )) // don't parse if there's no text
return description;
var end = article.text.Length < 300 ? article.text.Length : 300;
return description + "\n" + article.text.Substring( 0, end );
}
public JsonResult Article( string url, bool? html )
{
var diffbot = new DiffbotAPI( );
var source = new WebClient( ).DownloadString
(
diffbot.GetEndpointUrl
(
DiffbotAPI.EndPoints.Article,
url,
html ?? false
)
);
var model = new DiffBotArticleResultModel().Create( source );
return Json( model, JsonRequestBehavior.AllowGet );
}
