511 lines
16 KiB
C#
511 lines
16 KiB
C#
using Newtonsoft.Json;
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using YoutubeExplode.Videos.Streams;
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using System.Linq;
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using System;
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using System.Threading.Tasks;
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using YoutubeExplode.Videos;
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using System.Threading;
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using YoutubeExplode.Exceptions;
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using System.Collections.Generic;
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using System.IO;
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using YoutubeExplode.Channels;
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using YoutubeExplode.Playlists;
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using System.Net.Http;
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using System.Net;
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using System.Diagnostics.CodeAnalysis;
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using YoutubeExplode.Utils.Extensions;
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using System.Net.Http.Headers;
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namespace Tesses.YouTubeDownloader
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{
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//From YouTubeExplode
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internal static class Helpers
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{
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public static async ValueTask<HttpResponseMessage> HeadAsync(
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this HttpClient http,
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string requestUri,
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CancellationToken cancellationToken = default)
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{
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using var request = new HttpRequestMessage(HttpMethod.Head, requestUri);
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return await http.SendAsync(
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request,
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HttpCompletionOption.ResponseHeadersRead,
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cancellationToken
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);
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}
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public static async ValueTask<Stream> GetStreamAsync(
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this HttpClient http,
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string requestUri,
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long? from = null,
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long? to = null,
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bool ensureSuccess = true,
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CancellationToken cancellationToken = default)
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{
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using var request = new HttpRequestMessage(HttpMethod.Get, requestUri);
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request.Headers.Range = new RangeHeaderValue(from, to);
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var response = await http.SendAsync(
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request,
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HttpCompletionOption.ResponseHeadersRead,
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cancellationToken
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);
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if (ensureSuccess)
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response.EnsureSuccessStatusCode();
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return await response.Content.ReadAsStreamAsync();
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}
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public static async ValueTask<long?> TryGetContentLengthAsync(
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this HttpClient http,
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string requestUri,
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bool ensureSuccess = true,
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CancellationToken cancellationToken = default)
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{
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using var response = await http.HeadAsync(requestUri, cancellationToken);
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if (ensureSuccess)
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response.EnsureSuccessStatusCode();
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return response.Content.Headers.ContentLength;
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}
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}
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// Special abstraction that works around YouTube's stream throttling
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// and provides seeking support.
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// From YouTubeExplode
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internal class SegmentedHttpStream : Stream
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{
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private readonly HttpClient _http;
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private readonly string _url;
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private readonly long? _segmentSize;
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private Stream _segmentStream;
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private long _actualPosition;
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[ExcludeFromCodeCoverage]
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public override bool CanRead => true;
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[ExcludeFromCodeCoverage]
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public override bool CanSeek => true;
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[ExcludeFromCodeCoverage]
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public override bool CanWrite => false;
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public override long Length { get; }
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public override long Position { get; set; }
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public SegmentedHttpStream(HttpClient http, string url, long length, long? segmentSize)
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{
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_url = url;
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_http = http;
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Length = length;
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_segmentSize = segmentSize;
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}
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private void ResetSegmentStream()
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{
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_segmentStream?.Dispose();
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_segmentStream = null;
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}
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private async ValueTask<Stream> ResolveSegmentStreamAsync(
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CancellationToken cancellationToken = default)
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{
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if (_segmentStream != null)
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return _segmentStream;
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var from = Position;
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var to = _segmentSize != null
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? Position + _segmentSize - 1
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: null;
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var stream = await _http.GetStreamAsync(_url, from, to, true, cancellationToken);
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return _segmentStream = stream;
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}
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public async ValueTask PreloadAsync(CancellationToken cancellationToken = default) =>
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await ResolveSegmentStreamAsync(cancellationToken);
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public override async Task<int> ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
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{
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while (true)
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{
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// Check if consumer changed position between reads
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if (_actualPosition != Position)
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ResetSegmentStream();
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// Check if finished reading (exit condition)
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if (Position >= Length)
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return 0;
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var stream = await ResolveSegmentStreamAsync(cancellationToken);
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var bytesRead = await stream.ReadAsync(buffer, offset, count, cancellationToken);
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_actualPosition = Position += bytesRead;
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if (bytesRead != 0)
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return bytesRead;
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// Reached the end of the segment, try to load the next one
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ResetSegmentStream();
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}
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}
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[ExcludeFromCodeCoverage]
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public override int Read(byte[] buffer, int offset, int count) =>
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ReadAsync(buffer, offset, count).GetAwaiter().GetResult();
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[ExcludeFromCodeCoverage]
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public override long Seek(long offset, SeekOrigin origin) => Position = origin switch
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{
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SeekOrigin.Begin => offset,
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SeekOrigin.Current => Position + offset,
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SeekOrigin.End => Length + offset,
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_ => throw new ArgumentOutOfRangeException(nameof(origin))
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};
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[ExcludeFromCodeCoverage]
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public override void Flush() =>
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throw new NotSupportedException();
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[ExcludeFromCodeCoverage]
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public override void SetLength(long value) =>
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throw new NotSupportedException();
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[ExcludeFromCodeCoverage]
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public override void Write(byte[] buffer, int offset, int count) =>
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throw new NotSupportedException();
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protected override void Dispose(bool disposing)
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{
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base.Dispose(disposing);
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if (disposing)
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{
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ResetSegmentStream();
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}
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}
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}
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public class TYTDClient : TYTDBase,IDownloader
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{
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string url;
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public TYTDClient(string url)
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{
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client=new HttpClient();
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this.url = url.TrimEnd('/') + '/';
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}
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public TYTDClient(HttpClient clt,string url)
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{
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client = clt;
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this.url = url.TrimEnd('/') + '/';
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}
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public TYTDClient(HttpClient clt, Uri uri)
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{
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client=clt;
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this.url = url.ToString().TrimEnd('/') + '/';
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}
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public TYTDClient(Uri uri)
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{
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client=new HttpClient();
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this.url = url.ToString().TrimEnd('/') + '/';
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}
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HttpClient client;
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public async Task AddChannelAsync(ChannelId id, Resolution resolution = Resolution.PreMuxed)
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{
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try{
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await client.GetStringAsync($"{url}api/v2/AddChannel?v={id.Value}&res={resolution.ToString()}");
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}catch(Exception ex)
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{
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_=ex;
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}
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}
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public async Task AddPlaylistAsync(PlaylistId id, Resolution resolution = Resolution.PreMuxed)
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{
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try{
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await client.GetStringAsync($"{url}api/v2/AddPlaylist?v={id.Value}&res={resolution.ToString()}");
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}catch(Exception ex)
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{
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_=ex;
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}
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}
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public async Task AddUserAsync(UserName userName, Resolution resolution = Resolution.PreMuxed)
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{
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try{
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await client.GetStringAsync($"{url}api/v2/AddUser?v={userName.Value}&res={resolution.ToString()}");
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}catch(Exception ex)
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{
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_=ex;
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}
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}
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public async Task AddVideoAsync(VideoId id, Resolution resolution = Resolution.PreMuxed)
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{
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try{
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await client.GetStringAsync($"{url}api/v2/AddVideo?v={id.Value}&res={resolution.ToString()}");
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}catch(Exception ex)
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{
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_=ex;
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}
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}
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public async Task AddFileAsync(string url,bool download=true)
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{
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try{
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await client.GetStringAsync($"{url}api/v2/AddFile?url={WebUtility.UrlEncode(url)}&download={download}");
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}catch(Exception ex)
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{
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_=ex;
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}
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}
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public override async Task<bool> DirectoryExistsAsync(string path)
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{
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try{
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string v=await client.GetStringAsync($"{url}api/Storage/DirectoryExists/{path}");
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return v=="true";
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}catch(Exception ex)
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{
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_=ex;
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}
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return false;
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}
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public async override IAsyncEnumerable<string> EnumerateDirectoriesAsync(string path)
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{
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List<string> items=null;
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try{
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string v=await client.GetStringAsync($"{url}api/Storage/GetDirectory/{path}");
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items=JsonConvert.DeserializeObject<List<string>>(v);
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}catch(Exception ex)
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{
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_=ex;
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}
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if(items==null)
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{
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yield break;
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}else{
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foreach(var item in items)
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{
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yield return await Task.FromResult(item);
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}
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}
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}
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public async IAsyncEnumerable<Subscription> GetSubscriptionsAsync()
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{
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string v="[]";
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try{
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v=await client.GetStringAsync("{url}api/v2/subscriptions");
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}catch(Exception ex)
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{
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_=ex;
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}
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foreach(var item in JsonConvert.DeserializeObject<List<Subscription>>(v))
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{
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yield return await Task.FromResult(item);
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}
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}
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public async Task UnsubscribeAsync(ChannelId id)
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{
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try{
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string v=await client.GetStringAsync($"{url}api/v2/unsubscribe?id={id.Value}");
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}catch(Exception ex)
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{
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_=ex;
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}
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}
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public async Task SubscribeAsync(ChannelId id,bool downloadChannelInfo=false,ChannelBellInfo bellInfo = ChannelBellInfo.NotifyAndDownload)
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{
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try{
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string dlcid=downloadChannelInfo ? "true" : "false";
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string v=await client.GetStringAsync($"{url}api/v2/subscribe?id={id.Value}&conf={bellInfo.ToString()}&getinfo={dlcid}");
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}catch(Exception ex)
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{
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_=ex;
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}
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}
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public async Task SubscribeAsync(UserName name,ChannelBellInfo info=ChannelBellInfo.NotifyAndDownload)
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{
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try{
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string v=await client.GetStringAsync($"{url}api/v2/subscribe?id={ WebUtility.UrlEncode(name.Value)}&conf={info.ToString()}");
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}catch(Exception ex)
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{
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_=ex;
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}
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}
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public async Task ResubscribeAsync(ChannelId id,ChannelBellInfo info=ChannelBellInfo.NotifyAndDownload)
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{
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try{
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string v=await client.GetStringAsync($"{url}api/v2/resubscribe?id={id.Value}&conf={info.ToString()}");
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}catch(Exception ex)
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{
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_=ex;
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}
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}
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public async override IAsyncEnumerable<string> EnumerateFilesAsync(string path)
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{
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List<string> items=null;
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try{
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string v=await client.GetStringAsync($"{url}api/Storage/GetFiles/{path}");
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items=JsonConvert.DeserializeObject<List<string>>(v);
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}catch(Exception ex)
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{
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_=ex;
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}
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if(items==null)
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{
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yield break;
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}else{
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foreach(var item in items)
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{
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yield return await Task.FromResult(item);
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}
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}
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}
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public async override Task<bool> FileExistsAsync(string path)
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{
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try{
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string v=await client.GetStringAsync($"{url}api/Storage/FileExists/{path}");
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return v=="true";
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}catch(Exception ex)
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{
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_=ex;
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}
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return false;
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}
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private async Task<IReadOnlyList<(SavedVideo Video, Resolution Resolution)>> GetQueueListAsync()
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{
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try{
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string v=await client.GetStringAsync($"{url}api/v2/QueueList");
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return JsonConvert.DeserializeObject<List<(SavedVideo Video,Resolution res)>>(v);
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}catch(Exception ex)
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{
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_=ex;
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}
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return new List<(SavedVideo video,Resolution resolution)>();
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}
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private async Task<SavedVideoProgress> GetProgressAsync()
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{
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try{
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string v=await client.GetStringAsync($"{url}api/v2/Progress");
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return JsonConvert.DeserializeObject<SavedVideoProgress>(v);
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}catch(Exception ex)
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{
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_=ex;
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}
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return null;
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}
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public SavedVideoProgress GetProgress()
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{
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return GetProgressAsync().GetAwaiter().GetResult();
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}
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public IReadOnlyList<(SavedVideo Video, Resolution Resolution)> GetQueueList()
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{
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return GetQueueListAsync().GetAwaiter().GetResult();
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}
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public async override Task<Stream> OpenReadAsync(string path)
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{
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try{
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var strmLen= await client.TryGetContentLengthAsync($"{url}api/Storage/File/{path}",true);
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SegmentedHttpStream v=new SegmentedHttpStream(client,$"{url}api/Storage/File/{path}",strmLen.GetValueOrDefault(),null);
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return v;
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}catch(Exception ex)
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{
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_=ex;
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}
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return Stream.Null;
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}
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public async Task AddToPersonalPlaylistAsync(string name, IEnumerable<ListContentItem> items)
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{
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Dictionary<string,string> values=new Dictionary<string, string>
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{
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{ "name", name},
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{ "data", JsonConvert.SerializeObject(items.ToArray())}
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};
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var content = new FormUrlEncodedContent(values);
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var response = await client.PostAsync($"{url}api/v2/AddToList",content);
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var resposeStr = await response.Content.ReadAsStringAsync();
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}
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public async Task ReplacePersonalPlaylistAsync(string name, IEnumerable<ListContentItem> items)
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{
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//ReplaceList
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Dictionary<string,string> values=new Dictionary<string, string>
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{
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{ "name", name},
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{ "data", JsonConvert.SerializeObject(items.ToArray())}
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};
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var content = new FormUrlEncodedContent(values);
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var response = await client.PostAsync($"{url}api/v2/ReplaceList",content);
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var resposeStr = await response.Content.ReadAsStringAsync();
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}
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public async Task RemoveItemFromPersonalPlaylistAsync(string name, VideoId id)
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{
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try{
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await client.GetStringAsync($"{url}api/v2/DeleteFromList?name={WebUtility.UrlEncode(name)}&v={id.Value}");
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}catch(Exception ex)
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{
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_=ex;
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}
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}
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public async Task SetResolutionForItemInPersonalPlaylistAsync(string name, VideoId id, Resolution resolution)
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{
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try{
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await client.GetStringAsync($"{url}api/v2/SetResolutionInList?name={WebUtility.UrlEncode(name)}&v={id.Value}&res={resolution.ToString()}");
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}catch(Exception ex)
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{
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_=ex;
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}
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}
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public void DeletePersonalPlaylist(string name)
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{
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try{
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client.GetStringAsync($"{url}api/v2/DeleteList?name={WebUtility.UrlEncode(name)}").GetAwaiter().GetResult();
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}catch(Exception ex)
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{
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_=ex;
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}
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}
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}
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} |