292 lines
10 KiB
C#
292 lines
10 KiB
C#
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using System.Text;
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using System.Web;
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using Tesses.WebServer;
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using YoutubeExplode;
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using YoutubeExplode.Search;
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using YoutubeExplode.Videos;
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using LiteDB;
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using Newtonsoft.Json;
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using System.Security.Cryptography;
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using YoutubeExplode.Videos.Streams;
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using System.Net.Mime;
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namespace TYTDThrowback;
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class Program
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{
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static readonly ILiteDatabase liteDatabase=new LiteDatabase("data/database.db");
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static ILiteCollection<VideoInfo> Videos => liteDatabase.GetCollection<VideoInfo>("videos");
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public class VideoInfo {
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public VideoInfo()
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{
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}
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public VideoInfo(SavedVideo tytd)
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{
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VideoId = tytd.Id;
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VideoTitle = tytd.Title;
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ChannelId = tytd.AuthorId;
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ChannelTitle=tytd.AuthorTitle;
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Description = tytd.Description;
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Likes = tytd.Likes;
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Views = tytd.Views;
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}
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public VideoInfo(Video video)
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{
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VideoId = video.Id;
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VideoTitle = video.Title;
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ChannelId = video.Author.ChannelId;
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ChannelTitle = video.Author.ChannelTitle;
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Views = video.Engagement.ViewCount;
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Likes = video.Engagement.LikeCount;
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Duration = video.Duration ?? TimeSpan.Zero;
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UploadDate = video.UploadDate.DateTime;
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Description = video.Description;
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}
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public long Id {get;set;}
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public string VideoId {get;set;}="";
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public string VideoTitle {get;set;}="";
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public string ChannelId {get;set;}="";
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public string ChannelTitle {get;set;}="";
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public long Views {get;set;}=0;
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public long Likes {get;set;}=0;
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public string Description {get;set;}="";
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public TimeSpan Duration {get;set;}=TimeSpan.Zero;
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public DateTime UploadDate {get;set;}=DateTime.Now;
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public DateTime Expires {get;set;}=DateTime.Now;
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public string Url {get;set;}="";
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public long Bitrate {get;set;}=0;
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public long Size {get;set;}=0;
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public string Container {get;set;}="";
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public void SetIStream(IStreamInfo info)
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{
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Bitrate=info.Bitrate.BitsPerSecond;
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Url = info.Url;
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Size = info.Size.Bytes;
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Container = info.Container.Name;
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}
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public IStreamInfo GetIStream()
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{
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return new SStreamInfo(Url,Bitrate,Size,Container);
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}
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}
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static readonly HttpClient http = new HttpClient();
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static readonly YoutubeClient client=new YoutubeClient(http);
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static string Downloader {get;set;}="https://tytd.site.tesses.net/";
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static bool AllowAddingTo {get;set;}=true;
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static bool AllowDownloadingFrom {get;set;}=true;
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static bool AllowDownloadingInfoFrom {get;set;}=false;
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static void Main(string[] args)
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{
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if(File.Exists("data/tytd.json"))
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{
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var res=JsonConvert.DeserializeObject<dynamic?>(File.ReadAllText("data/tytd.json"));
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AllowDownloadingFrom = res?.AllowDownloadingFrom ?? true;
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AllowAddingTo = res?.AllowAddingTo ?? true;
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AllowDownloadingInfoFrom = res?.AllowDownloadingInfoFrom ?? false;
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Downloader = res?.Downloader ?? "https://tytd.site.tesses.net/";
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}
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RouteServer routeServer = new RouteServer(new StaticServer("data/www"));
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routeServer.Add("/search",SearchAsync);
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routeServer.Add("/info", InfoAsync);
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routeServer.Add("/download",DownloadAsync);
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routeServer.StartServer(9900);
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}
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static async Task StreamAsync(ServerContext ctx,bool play, VideoInfo video)
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{
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ContentDisposition disposition=new ContentDisposition();
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disposition.FileName = $"{video.VideoTitle}-{video.VideoId}.{video.Container}";
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disposition.Inline = play;
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//disposition.
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ctx.ResponseHeaders.Add("Content-Disposition",disposition.ToString());
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await ctx.SendStreamAsync(await client.Videos.Streams.GetAsync(video.GetIStream()),HeyRed.Mime.MimeTypesMap.GetMimeType($"file.{video.Container}"));
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}
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static async Task DownloadAsync(ServerContext ctx)
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{
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VideoId? vi=null;
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if(ctx.QueryParams.TryGetFirst("v", out var v) && (vi = VideoId.TryParse(v) ).HasValue)
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{
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bool play = ctx.QueryParams.ContainsKey("play");
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var info=await EnsureVideoAsync(vi.Value);
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DateTime now = DateTime.Now;
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if(now<info.Expires)
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{
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await StreamAsync(ctx,play,info);
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}
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else
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{
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info.Expires = now.AddHours(6);
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info.SetIStream((await client.Videos.Streams.GetManifestAsync(vi.Value)).GetMuxedStreams().GetWithHighestVideoQuality());
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Videos.Update(info);
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await StreamAsync(ctx,play,info);
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}
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}
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}
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static async Task InfoAsync(ServerContext ctx)
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{
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VideoId? vi=null;
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if(ctx.QueryParams.TryGetFirst("v", out var v) && (vi = VideoId.TryParse(v) ).HasValue)
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{
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var video=await EnsureVideoAsync(vi.Value);
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string desc = string.IsNullOrWhiteSpace(video.Description) ? "" : HttpUtility.HtmlEncode(video.Description).Replace("\n","<br>");
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string dfm = "./not_allowed_df.html";
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string atm = "./not_allowed_at.html";
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if(!string.IsNullOrWhiteSpace(Downloader) && AllowDownloadingFrom)
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{
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dfm = $"{Downloader.TrimEnd('/')}/api/Storage/Video/{video.VideoId}";
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}
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if(!string.IsNullOrWhiteSpace(Downloader) && AllowAddingTo)
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{
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atm = $"{Downloader.TrimEnd('/')}/api/AddVideo/{video.VideoId}";
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}
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await ctx.SendTextAsync((await File.ReadAllTextAsync("data/www/info.html")).Replace("$TITLE---429492492942",HttpUtility.HtmlEncode(video.VideoTitle)).Replace("$AUTHOR---429492492942",HttpUtility.HtmlEncode(video.ChannelTitle)).Replace("$UPLOAD---429492492942",$"{video.UploadDate.Month}/{video.UploadDate.Day}/{video.UploadDate.Year}").Replace("$LIKES---429492492942",video.Likes.ToString()).Replace("$VIEWS---429492492942",video.Views.ToString()).Replace("$DURATION---429492492942",video.Duration.ToString()).Replace("$WOY---429492492942",$"https://www.youtube.com/watch?v={video.VideoId}").Replace("$WFY---429492492942",$"./download?v={video.VideoId}&play").Replace("$DFY---429492492942",$"./download?v={video.VideoId}").Replace("$DFM---429492492942",dfm).Replace("$ATM---429492492942",atm).Replace("$DESC---429492492942",desc));
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}
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}
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static async Task SearchAsync(ServerContext ctx)
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{
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if(!ctx.QueryParams.TryGetFirst("q",out var query))
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query="Trending";
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StringBuilder b = new StringBuilder();
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void AddLi(VideoInfo info)
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{
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b.Append($"<li><a href=\"./info?v={info.VideoId}\" class=\"tytd-li-span\">{HttpUtility.HtmlEncode(info.VideoTitle)}</a><br><span class=\"tytd-li-span\">{HttpUtility.HtmlEncode(info.ChannelTitle)}</span><span class=\"tytd-li-span-2\">{info.UploadDate.Month}/{info.UploadDate.Day}/{info.UploadDate.Year}</span><br><span class=\"tytd-li-span\">V: {info.Views} L: {info.Likes}</span><span class=\"tytd-li-span-2\">{info.Duration.ToString()}</span></li>");
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}
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await foreach(var item in client.Search.GetResultBatchesAsync(query,YoutubeExplode.Search.SearchFilter.Video))
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{
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foreach(var v in item.Items)
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{
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var v2 = v as VideoSearchResult;
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if(v2 != null)
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AddLi(await EnsureVideoAsync(v2.Id));
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}
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break;
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}
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await ctx.SendTextAsync((await File.ReadAllTextAsync("data/www/search.html")).Replace("$QUERY---429492492942",HttpUtility.HtmlAttributeEncode(query)).Replace("$LI---429492492942",b.ToString()));
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}
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private static async Task<VideoInfo?> TYTDVideoInfo(VideoId id)
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{
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if(!AllowDownloadingInfoFrom) return null;
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if(string.IsNullOrWhiteSpace(Downloader))
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return null;
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try{
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string url = Downloader.TrimEnd('/');
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if((await http.GetStringAsync($"{url}/api/Storage/FileExists/Info/{id.Value}.json")) == "false") return null;
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var res=JsonConvert.DeserializeObject<SavedVideo>(await http.GetStringAsync($"{url}/api/Storage/File/Info/{id.Value}.json"));
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if(res != null)
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{
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return new VideoInfo(res);
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}
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return null;
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}
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catch(Exception ex)
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{
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_=ex;
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return null;
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}
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}
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private static async Task<VideoInfo> EnsureVideoAsync(VideoId v)
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{
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var vid = Videos.FindOne(e=>e.VideoId == v.Value);
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if(vid == null)
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{
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var res=await TYTDVideoInfo(v.Value);
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if(res != null)
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{
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Videos.Insert(res);
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return res;
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}
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try{
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var _res=await client.Videos.GetAsync(v.Value);
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res=new VideoInfo(_res);
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Videos.Insert(res);
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return res;
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}
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catch(Exception ex)
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{
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_=ex;
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}
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vid=new VideoInfo();
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}
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return vid;
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}
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}
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internal class SStreamInfo : IStreamInfo
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{
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private string url;
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private long bitrate;
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private long size;
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private string container;
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public SStreamInfo(string url, long bitrate, long size, string container)
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{
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this.url = url;
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this.bitrate = bitrate;
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this.size = size;
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this.container = container;
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}
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public string Url => url;
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public Container Container => new Container(container);
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public FileSize Size => new FileSize(size);
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public Bitrate Bitrate => new Bitrate(bitrate);
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}
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public class SavedVideo
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{
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public string Id {get;set;}="";
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public string Title {get;set;}="";
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public string AuthorId {get;set;}="";
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public string AuthorTitle {get;set;}="";
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public long Likes {get;set;}=0;
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public long Views {get;set;}=0;
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public TimeSpan Duration {get;set;}=TimeSpan.Zero;
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public DateTime UploadDate {get;set;}=DateTime.Now;
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public string Description {get;set;}="";
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}
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