private static ArtistCache GetInitialArtists(
ArtistCache artistCache,
string httpResponseResults,
out string continuation)
{
continuation = string.Empty;
var jo = JObject.Parse(httpResponseResults);
var musicShelfRendererTokens = jo.Descendants().Where(t => t.Type == JTokenType.Property && ((JProperty)t).Name == "musicShelfRenderer")
.Select(p => ((JProperty)p).Value)
.ToList();
foreach (var token in musicShelfRendererTokens)
{
var msr = token.ToObject <BrowseArtistsResultsContext.Musicshelfrenderer>();
if (msr.continuations != null &&
msr.continuations.Length > 0 &&
msr.continuations[0].nextContinuationData != null &&
msr.continuations[0].nextContinuationData.continuation != null)
{
continuation = msr.continuations[0].nextContinuationData.continuation;
}
foreach (var item in msr.contents)
{
foreach (var run in item.musicResponsiveListItemRenderer
.flexColumns[0]
.musicResponsiveListItemFlexColumnRenderer
.text
.runs)
{
artistCache.Artists.Add(new ArtistCache.Artist
{
BrowseId = item.musicResponsiveListItemRenderer.navigationEndpoint.browseEndpoint.browseId,
ArtistName = run.text,
});
}
}
}
return(artistCache);
}
private static ArtistCache GetArtistsContinuation(
ArtistCache artistCache,
string httpResponseResults,
out string continuation)
{
var browseArtistsResults = JsonConvert.DeserializeObject <BrowseArtistsResultsContinuationContext>(httpResponseResults);
continuation = string.Empty;
var musicShelfRenderer = browseArtistsResults.continuationContents.musicShelfContinuation;
if (musicShelfRenderer.continuations != null &&
musicShelfRenderer.continuations.Length > 0 &&
musicShelfRenderer.continuations[0].nextContinuationData != null &&
musicShelfRenderer.continuations[0].nextContinuationData.continuation != null)
{
continuation = musicShelfRenderer.continuations[0].nextContinuationData.continuation;
}
foreach (var item in musicShelfRenderer.contents)
{
foreach (var run in item.musicResponsiveListItemRenderer
.flexColumns[0]
.musicResponsiveListItemFlexColumnRenderer
.text
.runs)
{
artistCache.Artists.Add(new ArtistCache.Artist
{
BrowseId = item.musicResponsiveListItemRenderer.navigationEndpoint.browseEndpoint.browseId,
ArtistName = run.text
});
}
}
return(artistCache);
}
/// <summary>
/// HttpWebRequest POST request - Recursively fetches all the artists from YouTube Music's 'Upload' section
/// </summary>
/// <param name="cookieValue">Cookie from a previous YouTube Music sign in via this application (stored in the database)</param>
/// <param name="artistCache">Input ArtistCache object (should be empty when initialising - this is a recursive method)</param>
/// <param name="continuationToken">Token from YouTube Music indicated more results to fetch, and the token to get them
/// (shoult be empty when initialising - this is a recursive method)</param>
/// <returns>ArtistCache object</returns>
public static ArtistCache GetArtists(
string cookieValue,
ArtistCache artistCache = null,
string continuationToken = null)
{
if (artistCache == null)
{
artistCache = new ArtistCache();
}
try
{
var request = (HttpWebRequest)WebRequest.Create(Global.YouTubeMusicBaseUrl +
"browse" +
(string.IsNullOrEmpty(continuationToken)
? ""
: "?ctoken=" + continuationToken +
"&continuation=" + continuationToken) +
(string.IsNullOrEmpty(continuationToken)
? Global.YouTubeMusicParams
: Global.YouTubeMusicParams.Replace('?', '&')));
request = AddStandardHeaders(request, cookieValue);
request.ContentType = "application/json; charset=UTF-8";
request.Headers["X-Goog-AuthUser"] = "******";
request.Headers["x-origin"] = "https://music.youtube.com";
request.Headers["X-Goog-Visitor-Id"] = Global.GoogleVisitorId;
request.Headers["Authorization"] = GetAuthorisation(GetSAPISIDFromCookie(cookieValue));
byte[] postBytes = GetPostBytes(
SafeFileStream.ReadAllText(
Path.Combine(Global.WorkingDirectory, @"AppData\get_artists_context.json")));
request.ContentLength = postBytes.Length;
using (var requestStream = request.GetRequestStream())
{
requestStream.Write(postBytes, 0, postBytes.Length);
requestStream.Close();
}
postBytes = null;
using (var response = (HttpWebResponse)request.GetResponse())
{
string result;
using (var brotli = new Brotli.BrotliStream(response.GetResponseStream(),
System.IO.Compression.CompressionMode.Decompress,
true))
{
var streamReader = new StreamReader(brotli);
result = streamReader.ReadToEnd();
}
if (string.IsNullOrEmpty(continuationToken))
{
artistCache = GetInitialArtists(artistCache, result, out string continuation);
if (!string.IsNullOrEmpty(continuation))
{
return(GetArtists(cookieValue, artistCache, continuation));
}
}
else
{
artistCache = GetArtistsContinuation(artistCache, result, out string continuation);
if (!string.IsNullOrEmpty(continuation))
{
return(GetArtists(cookieValue, artistCache, continuation));
}
}
}
}
catch (Exception e)
{
var _ = e;
#if DEBUG
Console.Out.WriteLine("GetArtists: " + e.Message);
#endif
}
return(artistCache);
}
