private async static void DecryptingLink(VideoModels videoModel)
{
IDictionary<string, string> queries = HttpRequestHelper.AnalyseQueryString(videoModel.DownloadableLink);
if (queries.ContainsKey(SignatureQuery))
{
string encryptedSignature = queries[SignatureQuery];
string decrypted;
try
{
decrypted = await GetDecipheredSignature(videoModel.HtmlPlayerVersion, encryptedSignature);
}
catch (Exception ex)
{
throw new YoutubeException("Could not decipher signature", ex);
}
videoModel.DownloadableLink = HttpRequestHelper.ReplacingQueryStringParameter(videoModel.DownloadableLink, SignatureQuery, decrypted);
videoModel.RequiresDecryption = false;
}
}
internal VideoModels(VideoModels info)
: this(info.FormatCode, info.VideoQuality, info.Resolution, info.Is3D, info.AudioModel, info.AudioBit, info.Type)
{
}
private static List<VideoModels> GetVideoModels(List<Information> extractionInfos, string videoTitle)
{
var downLoadInfos = new List<VideoModels>();
foreach (Information Info in extractionInfos)
{
string itag = HttpRequestHelper.AnalyseQueryString(Info.Uri.Query)["itag"];
int formatCode = int.Parse(itag);
VideoModels info = VideoModels.Defaults.SingleOrDefault(videoModels => videoModels.FormatCode == formatCode);
if (info != null)
{
info = new VideoModels(info)
{
DownloadableLink = Info.Uri.ToString(),
Title = videoTitle,
RequiresDecryption = Info.RequiresDecryption
};
}
else
{
info = new VideoModels(formatCode)
{
DownloadableLink = Info.Uri.ToString()
};
}
downLoadInfos.Add(info);
}
return downLoadInfos;
}