internal async Task <string> GetChannelIdFromUserId(IYouTubeLiveServer server, string userId)
{
var url = "https://www.youtube.com/user/" + userId;
var html = await server.GetAsync(url);
var match = Regex.Match(html, "<meta property=\"og:url\" content=\"https://www.youtube.com/channel/([^\"]+)\">");
if (match.Success)
{
var channelId = match.Groups[1].Value;
return(channelId);
}
throw new ParseException(html);
}
internal async Task <(string channelId, string reason)> TryGetChannelIdFromCustomChannel(IYouTubeLiveServer server, string input)
{
var match1 = _regexCustomChannel.Match(input);
if (match1.Success)
{
var userId = match1.Groups[1].Value;
var html = await server.GetAsync($"https://www.youtube.com/c/{userId}");
var match2 = Regex.Match(html, "property=\"og:url\" content=\"https://www\\.youtube\\.com/channel/(?<channelid>[^/\"?]+)\">");
if (match2.Success)
{
var channelId = match2.Groups["channelid"].Value;
return(channelId, null);
}
}
return(null, "");
}