private static JObject LoadJson(string url)
{
string str = HttpHelper.DownloadString(url);
if (DownloadUrlResolver.IsVideoUnavailable(str))
{
throw new VideoNotAvailableException();
}
return(JObject.Parse(new Regex("ytplayer\\.config\\s*=\\s*(\\{.+?\\});", RegexOptions.Multiline).Match(str).Result("$1")));
}
public static IEnumerable <VideoInfo> GetDownloadUrls(string videoUrl, bool decryptSignature = true)
{
if (videoUrl == null)
{
throw new ArgumentNullException("videoUrl");
}
if (!DownloadUrlResolver.TryNormalizeYoutubeUrl(videoUrl, out videoUrl))
{
throw new ArgumentException("URL is not a valid youtube URL!");
}
try
{
JObject json = DownloadUrlResolver.LoadJson(videoUrl);
string videoTitle = DownloadUrlResolver.GetVideoTitle(json);
IEnumerable <VideoInfo> list = (IEnumerable <VideoInfo>)Enumerable.ToList <VideoInfo>(DownloadUrlResolver.GetVideoInfos(DownloadUrlResolver.ExtractDownloadUrls(json), videoTitle));
string html5PlayerVersion = DownloadUrlResolver.GetHtml5PlayerVersion(json);
IEnumerator <VideoInfo> enumerator = list.GetEnumerator();
try
{
while (((IEnumerator)enumerator).MoveNext())
{
VideoInfo current = enumerator.Current;
current.HtmlPlayerVersion = html5PlayerVersion;
if (decryptSignature && current.RequiresDecryption)
{
DownloadUrlResolver.DecryptDownloadUrl(current);
}
}
}
finally
{
if (enumerator != null)
{
((IDisposable)enumerator).Dispose();
}
}
return(list);
}
catch (Exception ex)
{
if (ex is WebException || ex is VideoNotAvailableException)
{
throw;
}
else
{
DownloadUrlResolver.ThrowYoutubeParseException(ex, videoUrl);
}
}
return(null);
}
public static async Task <Uri> GetVideoUriAsync(string videoId)
{
var videoUrl = "http://www.youtube.com/watch?v=" + videoId;
var videoInfos = await GetDownloadUrls(videoUrl, false);
// TODO - parameterize video resolution
VideoInfo video = videoInfos
.First(info => info.VideoType == VideoType.Mp4 && info.Resolution == 360);
// If the video has an encrypted signature, decipher it
if (video.RequiresDecryption)
{
await DownloadUrlResolver.DecryptDownloadUrl(video);
}
return(new Uri(video.DownloadUrl));
}
public static void DecryptDownloadUrl(VideoInfo videoInfo)
{
IDictionary <string, string> queryString = HttpHelper.ParseQueryString(videoInfo.DownloadUrl);
if (!queryString.ContainsKey("signature"))
{
return;
}
string signature = queryString["signature"];
string decipheredSignature;
try
{
decipheredSignature = DownloadUrlResolver.GetDecipheredSignature(videoInfo.HtmlPlayerVersion, signature);
}
catch (Exception ex)
{
throw new YoutubeParseException("Could not decipher signature", ex);
}
videoInfo.DownloadUrl = HttpHelper.ReplaceQueryStringParameter(videoInfo.DownloadUrl, "signature", decipheredSignature);
videoInfo.RequiresDecryption = false;
}
static void Main(string[] args)
{
try
{
//var link = new List<string>();
//link.Add("https://www.youtube.com/watch?v=GlGuLcQhrWg");
string link = @"https://www.youtube.com/watch?v=YzC-FYg66xA&list=PL0kIvpOlieSNWR3YPSjh9P2p43SFnNBlB&index=1";
//foreach (var item in link)
//{
IEnumerable <VideoInfo> videoInfos = DownloadUrlResolver.GetDownloadUrls("https://www.youtube.com/watch?v=YzC-FYg66xA&list=PL0kIvpOlieSNWR3YPSjh9P2p43SFnNBlB&index=1");
VideoInfo video = videoInfos.First(info => info.VideoType == VideoType.Mp4 && info.Resolution == 720);
var videoDownloader = new VideoDownloader(video, Path.Combine(@"C:\Users\lalomarquez\Desktop\", video.Title + video.VideoExtension));
videoDownloader.DownloadProgressChanged += (sender, argss) => Console.WriteLine(argss.ProgressPercentage);
videoDownloader.Execute();
//}
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
private static IEnumerable <DownloadUrlResolver.ExtractionInfo> ExtractDownloadUrls(JObject json)
{
string[] strArray = (string[])Enumerable.ToArray <string>(Enumerable.Concat <string>(((string)DownloadUrlResolver.GetStreamMap(json)).Split((char[])new char[1]
{
','
}), ((string)DownloadUrlResolver.GetAdaptiveStreamMap(json)).Split((char[])new char[1]
{
','
})));
for (int index = 0; index < strArray.Length; ++index)
{
IDictionary <string, string> queryString = HttpHelper.ParseQueryString(strArray[index]);
bool flag = false;
string url;
if (queryString.ContainsKey("s") || queryString.ContainsKey("sig"))
{
flag = queryString.ContainsKey("s");
string str = queryString.ContainsKey("s") ? queryString["s"] : queryString["sig"];
url = string.Concat(string.Format("{0}&{1}={2}", queryString["url"], "signature", str), queryString.ContainsKey("fallback_host") ? string.Concat("&fallback_host=", queryString["fallback_host"]) : string.Empty);
}
else
{
url = queryString["url"];
}
string str1 = HttpHelper.UrlDecode(HttpHelper.UrlDecode(url));
if (!HttpHelper.ParseQueryString(str1).ContainsKey("ratebypass"))
{
str1 = string.Concat(str1, string.Format("&{0}={1}", "ratebypass", "yes"));
}
DownloadUrlResolver.ExtractionInfo extractionInfo = new DownloadUrlResolver.ExtractionInfo();
extractionInfo.RequiresDecryption = flag;
Uri uri = new Uri(str1);
extractionInfo.Uri = uri;
yield return(extractionInfo);
}
strArray = (string[])null;
}
public static Task <IEnumerable <VideoInfo> > GetDownloadUrlsAsync(string videoUrl, bool decryptSignature = true)
{
return(Task.Run <IEnumerable <VideoInfo> >(() => DownloadUrlResolver.GetDownloadUrls(videoUrl, decryptSignature)));
}