/// <summary>
/// Returns all available URIs (audio-only and video) for the given YouTube ID.
/// </summary>
public static async Task<YouTubeUri[]> GetUrisAsync(string youTubeId, IResourceNetworkLayer networkLayer, IProgress<float> progress, CancellationToken token)
{
var urls = new List<YouTubeUri>();
string javaScriptCode = null;
var response = await HttpGet("https://www.youtube.com/watch?v=" + youTubeId + "&nomobile=1", networkLayer, progress, token);
var match = Regex.Match(response, "url_encoded_fmt_stream_map\": ?\"(.*?)\"");
var data = Uri.UnescapeDataString(match.Groups[1].Value);
match = Regex.Match(response, "adaptive_fmts\": ?\"(.*?)\"");
var data2 = Uri.UnescapeDataString(match.Groups[1].Value);
var arr = Regex.Split(data + "," + data2, ",(?=(?:[^\"]*\"[^\"]*\")*[^\"]*$)"); // split by comma but outside quotes
foreach (var d in arr)
{
var url = "";
//var connection = "";
//var stream = "";
var signature = "";
var tuple = new YouTubeUri();
foreach (var p in d.Replace("\\u0026", "\t").Split('\t'))
{
var index = p.IndexOf('=');
if (index != -1 && index < p.Length)
{
try
{
var key = p.Substring(0, index);
var value = Uri.UnescapeDataString(p.Substring(index + 1));
if (key == "url")
url = value;
//else if (key == "conn")
// connection = value;
//else if (key == "stream")
// stream = value;
else if (key == "itag")
tuple.Itag = int.Parse(value);
else if (key == "type" && (value.Contains("video/mp4") || value.Contains("audio/mp4")))
tuple.Type = value;
else if (key == "sig")
signature = value;
else if (key == "s")
{
if (javaScriptCode == null)
{
var javaScriptUri = "http://s.ytimg.com/yts/jsbin/html5player-" +
Regex.Match(response,
"\"\\\\/\\\\/s.ytimg.com\\\\/yts\\\\/jsbin\\\\/html5player-(.+?)\\.js\"")
.Groups[1] + ".js";
javaScriptCode = await HttpGet(javaScriptUri, networkLayer, progress, token);
}
signature = GenerateSignature(value, javaScriptCode);
}
}
catch (Exception exception)
{
Debug.WriteLine("YouTube parse exception: " + exception.Message);
}
}
}
//if (string.IsNullOrEmpty(url) && !string.IsNullOrEmpty(connection) && !string.IsNullOrEmpty(stream))
//{
// url = connection + "?" + stream;
//}
if (url.Contains("&signature=") || url.Contains("?signature="))
tuple._url = url;
else
tuple._url = url + "&signature=" + signature;
if (tuple.IsValid)
urls.Add(tuple);
}
return urls.ToArray();
}
/// <summary>
/// Returns all available URIs (audio-only and video) for the given YouTube ID.
/// </summary>
public static async Task <YouTubeUri[]> GetUrisAsync(string youTubeId, IResourceNetworkLayer networkLayer, IProgress <float> progress, CancellationToken token)
{
var urls = new List <YouTubeUri>();
string javaScriptCode = null;
var response = await HttpGet("https://www.youtube.com/watch?v=" + youTubeId + "&nomobile=1", networkLayer, progress, token);
var match = Regex.Match(response, "url_encoded_fmt_stream_map\": ?\"(.*?)\"");
var data = Uri.UnescapeDataString(match.Groups[1].Value);
match = Regex.Match(response, "adaptive_fmts\": ?\"(.*?)\"");
var data2 = Uri.UnescapeDataString(match.Groups[1].Value);
var arr = Regex.Split(data + "," + data2, ",(?=(?:[^\"]*\"[^\"]*\")*[^\"]*$)"); // split by comma but outside quotes
foreach (var d in arr)
{
var url = "";
//var connection = "";
//var stream = "";
var signature = "";
var tuple = new YouTubeUri();
foreach (var p in d.Replace("\\u0026", "\t").Split('\t'))
{
var index = p.IndexOf('=');
if (index != -1 && index < p.Length)
{
try
{
var key = p.Substring(0, index);
var value = Uri.UnescapeDataString(p.Substring(index + 1));
if (key == "url")
{
url = value;
}
//else if (key == "conn")
// connection = value;
//else if (key == "stream")
// stream = value;
else if (key == "itag")
{
tuple.Itag = int.Parse(value);
}
else if (key == "type" && (value.Contains("video/mp4") || value.Contains("audio/mp4")))
{
tuple.Type = value;
}
else if (key == "sig")
{
signature = value;
}
else if (key == "s")
{
if (javaScriptCode == null)
{
var javaScriptUri = "http://s.ytimg.com/yts/jsbin/html5player-" +
Regex.Match(response,
"\"\\\\/\\\\/s.ytimg.com\\\\/yts\\\\/jsbin\\\\/html5player-(.+?)\\.js\"")
.Groups[1] + ".js";
javaScriptCode = await HttpGet(javaScriptUri, networkLayer, progress, token);
}
signature = GenerateSignature(value, javaScriptCode);
}
}
catch (Exception exception)
{
Debug.WriteLine("YouTube parse exception: " + exception.Message);
}
}
}
//if (string.IsNullOrEmpty(url) && !string.IsNullOrEmpty(connection) && !string.IsNullOrEmpty(stream))
//{
// url = connection + "?" + stream;
//}
if (url.Contains("&signature=") || url.Contains("?signature="))
{
tuple._url = url;
}
else
{
tuple._url = url + "&signature=" + signature;
}
if (tuple.IsValid)
{
urls.Add(tuple);
}
}
return(urls.ToArray());
}
