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#nullable disable
#pragma warning disable CS1591
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Net.Http;
using System.Threading;
using System.Threading.Tasks;
using Jellyfin.Extensions;
using MediaBrowser.Common.Extensions;
using MediaBrowser.Common.Net;
using MediaBrowser.Controller;
using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.LiveTv;
using MediaBrowser.Model.Dto;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.IO;
using MediaBrowser.Model.LiveTv;
using MediaBrowser.Model.MediaInfo;
using Microsoft.Extensions.Caching.Memory;
using Microsoft.Extensions.Logging;
using Microsoft.Net.Http.Headers;
namespace Emby.Server.Implementations.LiveTv.TunerHosts
{
public class M3UTunerHost : BaseTunerHost, ITunerHost, IConfigurableTunerHost
{
private static readonly string[] _disallowedSharedStreamExtensions =
{
".mkv",
".mp4",
".m3u8",
".mpd"
};
private readonly IHttpClientFactory _httpClientFactory;
private readonly IServerApplicationHost _appHost;
private readonly INetworkManager _networkManager;
private readonly IMediaSourceManager _mediaSourceManager;
private readonly IStreamHelper _streamHelper;
public M3UTunerHost(
IServerConfigurationManager config,
IMediaSourceManager mediaSourceManager,
ILogger<M3UTunerHost> logger,
IFileSystem fileSystem,
IHttpClientFactory httpClientFactory,
IServerApplicationHost appHost,
INetworkManager networkManager,
IStreamHelper streamHelper,
IMemoryCache memoryCache)
: base(config, logger, fileSystem, memoryCache)
{
_httpClientFactory = httpClientFactory;
_appHost = appHost;
_networkManager = networkManager;
_mediaSourceManager = mediaSourceManager;
_streamHelper = streamHelper;
}
public override string Type => "m3u";
public virtual string Name => "M3U Tuner";
private string GetFullChannelIdPrefix(TunerHostInfo info)
{
return ChannelIdPrefix + info.Url.GetMD5().ToString("N", CultureInfo.InvariantCulture);
}
protected override async Task<List<ChannelInfo>> GetChannelsInternal(TunerHostInfo tuner, CancellationToken cancellationToken)
{
var channelIdPrefix = GetFullChannelIdPrefix(tuner);
return await new M3uParser(Logger, _httpClientFactory)
.Parse(tuner, channelIdPrefix, cancellationToken)
.ConfigureAwait(false);
}
public Task<List<LiveTvTunerInfo>> GetTunerInfos(CancellationToken cancellationToken)
{
var list = GetTunerHosts()
.Select(i => new LiveTvTunerInfo()
{
Name = Name,
SourceType = Type,
Status = LiveTvTunerStatus.Available,
Id = i.Url.GetMD5().ToString("N", CultureInfo.InvariantCulture),
Url = i.Url
})
.ToList();
return Task.FromResult(list);
}
protected override async Task<ILiveStream> GetChannelStream(TunerHostInfo tunerHost, ChannelInfo channel, string streamId, List<ILiveStream> currentLiveStreams, CancellationToken cancellationToken)
{
var tunerCount = tunerHost.TunerCount;
if (tunerCount > 0)
{
var tunerHostId = tunerHost.Id;
var liveStreams = currentLiveStreams.Where(i => string.Equals(i.TunerHostId, tunerHostId, StringComparison.OrdinalIgnoreCase));
if (liveStreams.Count() >= tunerCount)
{
throw new LiveTvConflictException("M3U simultaneous stream limit has been reached.");
}
}
var sources = await GetChannelStreamMediaSources(tunerHost, channel, cancellationToken).ConfigureAwait(false);
var mediaSource = sources[0];
if (mediaSource.Protocol == MediaProtocol.Http && !mediaSource.RequiresLooping)
{
var extension = Path.GetExtension(mediaSource.Path) ?? string.Empty;
if (!_disallowedSharedStreamExtensions.Contains(extension, StringComparison.OrdinalIgnoreCase))
{
return new SharedHttpStream(mediaSource, tunerHost, streamId, FileSystem, _httpClientFactory, Logger, Config, _appHost, _streamHelper);
}
}
return new LiveStream(mediaSource, tunerHost, FileSystem, Logger, Config, _streamHelper);
}
public async Task Validate(TunerHostInfo info)
{
using (await new M3uParser(Logger, _httpClientFactory).GetListingsStream(info, CancellationToken.None).ConfigureAwait(false))
{
}
}
protected override Task<List<MediaSourceInfo>> GetChannelStreamMediaSources(TunerHostInfo tuner, ChannelInfo channel, CancellationToken cancellationToken)
{
return Task.FromResult(new List<MediaSourceInfo> { CreateMediaSourceInfo(tuner, channel) });
}
protected virtual MediaSourceInfo CreateMediaSourceInfo(TunerHostInfo info, ChannelInfo channel)
{
var path = channel.Path;
var supportsDirectPlay = !info.EnableStreamLooping && info.TunerCount == 0;
var supportsDirectStream = !info.EnableStreamLooping;
var protocol = _mediaSourceManager.GetPathProtocol(path);
var isRemote = true;
if (Uri.TryCreate(path, UriKind.Absolute, out var uri))
{
isRemote = !_networkManager.IsInLocalNetwork(uri.Host);
}
var httpHeaders = new Dictionary<string, string>();
if (protocol == MediaProtocol.Http)
{
// Use user-defined user-agent. If there isn't one, make it look like a browser.
httpHeaders[HeaderNames.UserAgent] = string.IsNullOrWhiteSpace(info.UserAgent) ?
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.85 Safari/537.36" :
info.UserAgent;
}
var mediaSource = new MediaSourceInfo
{
Path = path,
Protocol = protocol,
MediaStreams = new List<MediaStream>
{
new MediaStream
{
Type = MediaStreamType.Video,
// Set the index to -1 because we don't know the exact index of the video stream within the container
Index = -1,
IsInterlaced = true
},
new MediaStream
{
Type = MediaStreamType.Audio,
// Set the index to -1 because we don't know the exact index of the audio stream within the container
Index = -1
}
},
RequiresOpening = true,
RequiresClosing = true,
RequiresLooping = info.EnableStreamLooping,
ReadAtNativeFramerate = false,
Id = channel.Path.GetMD5().ToString("N", CultureInfo.InvariantCulture),
IsInfiniteStream = true,
IsRemote = isRemote,
IgnoreDts = true,
SupportsDirectPlay = supportsDirectPlay,
SupportsDirectStream = supportsDirectStream,
RequiredHttpHeaders = httpHeaders
};
mediaSource.InferTotalBitrate();
return mediaSource;
}
public Task<List<TunerHostInfo>> DiscoverDevices(int discoveryDurationMs, CancellationToken cancellationToken)
{
return Task.FromResult(new List<TunerHostInfo>());
}
}
}
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