public static bool TryNormalizeYoutubeUrl(string url, out string normalizedUrl)
{
// If you fix something in here, please be sure to fix in
// YouTubeService.TryNormalize as well.
normalizedUrl = null;
var builder = new StringBuilder(url);
url = builder.Replace("youtu.be/", "youtube.com/watch?v=")
.Replace("youtube.com/embed/", "youtube.com/watch?v=")
.Replace("/v/", "/watch?v=")
.Replace("/watch#", "/watch?")
.ToString();
string value;
var query = new Query(url);
if (!query.TryGetValue("v", out value))
return false;
normalizedUrl = "https://youtube.com/watch?v=" + value;
return true;
}
private async Task<string> DecryptAsync(string uri)
{
var query = new Query(uri);
string signature;
if (!query.TryGetValue("signature", out signature))
return uri;
string js =
await sourceFactory(jsPlayer)
.ConfigureAwait(false);
query["signature"] = DecryptedSignature(signature, js);
return query.ToString();
}
private async Task<string> DecryptAsync(string uri, Func<DelegatingClient> makeClient)
{
var query = new Query(uri);
string signature;
if (!query.TryGetValue("signature", out signature))
return uri;
string js =
await makeClient()
.GetStringAsync(jsPlayer)
.ConfigureAwait(false);
query["signature"] = DecryptedSignature(signature, js);
return query.ToString();
}