jellyfin/MediaBrowser.Providers/Playlists/PlaylistItemsProvider.cs
2019-01-17 20:24:39 +01:00

164 lines
5.1 KiB
C#

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Playlists;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.IO;
using Microsoft.Extensions.Logging;
using PlaylistsNET.Content;
namespace MediaBrowser.Providers.Playlists
{
public class PlaylistItemsProvider : ICustomMetadataProvider<Playlist>,
IHasOrder,
IForcedProvider,
IPreRefreshProvider,
IHasItemChangeMonitor
{
private ILogger _logger;
private IFileSystem _fileSystem;
public PlaylistItemsProvider(IFileSystem fileSystem, ILogger logger)
{
_fileSystem = fileSystem;
_logger = logger;
}
public string Name => "Playlist Reader";
public Task<ItemUpdateType> FetchAsync(Playlist item, MetadataRefreshOptions options, CancellationToken cancellationToken)
{
var path = item.Path;
if (!Playlist.IsPlaylistFile(path))
{
return Task.FromResult(ItemUpdateType.None);
}
var extension = Path.GetExtension(path);
if (!Playlist.SupportedExtensions.Contains(extension ?? string.Empty, StringComparer.OrdinalIgnoreCase))
{
return Task.FromResult(ItemUpdateType.None);
}
using (var stream = _fileSystem.OpenRead(path))
{
var items = GetItems(stream, extension).ToArray();
item.LinkedChildren = items;
}
return Task.FromResult(ItemUpdateType.None);
}
private IEnumerable<LinkedChild> GetItems(Stream stream, string extension)
{
if (string.Equals(".wpl", extension, StringComparison.OrdinalIgnoreCase))
{
return GetWplItems(stream);
}
if (string.Equals(".zpl", extension, StringComparison.OrdinalIgnoreCase))
{
return GetZplItems(stream);
}
if (string.Equals(".m3u", extension, StringComparison.OrdinalIgnoreCase))
{
return GetM3uItems(stream);
}
if (string.Equals(".m3u8", extension, StringComparison.OrdinalIgnoreCase))
{
return GetM3u8Items(stream);
}
if (string.Equals(".pls", extension, StringComparison.OrdinalIgnoreCase))
{
return GetPlsItems(stream);
}
return new List<LinkedChild>();
}
private IEnumerable<LinkedChild> GetPlsItems(Stream stream)
{
var content = new PlsContent();
var playlist = content.GetFromStream(stream);
return playlist.PlaylistEntries.Select(i => new LinkedChild
{
Path = i.Path,
Type = LinkedChildType.Manual
});
}
private IEnumerable<LinkedChild> GetM3u8Items(Stream stream)
{
var content = new M3u8Content();
var playlist = content.GetFromStream(stream);
return playlist.PlaylistEntries.Select(i => new LinkedChild
{
Path = i.Path,
Type = LinkedChildType.Manual
});
}
private IEnumerable<LinkedChild> GetM3uItems(Stream stream)
{
var content = new M3uContent();
var playlist = content.GetFromStream(stream);
return playlist.PlaylistEntries.Select(i => new LinkedChild
{
Path = i.Path,
Type = LinkedChildType.Manual
});
}
private IEnumerable<LinkedChild> GetZplItems(Stream stream)
{
var content = new ZplContent();
var playlist = content.GetFromStream(stream);
return playlist.PlaylistEntries.Select(i => new LinkedChild
{
Path = i.Path,
Type = LinkedChildType.Manual
});
}
private IEnumerable<LinkedChild> GetWplItems(Stream stream)
{
var content = new WplContent();
var playlist = content.GetFromStream(stream);
return playlist.PlaylistEntries.Select(i => new LinkedChild
{
Path = i.Path,
Type = LinkedChildType.Manual
});
}
public bool HasChanged(BaseItem item, IDirectoryService directoryService)
{
var path = item.Path;
if (!string.IsNullOrWhiteSpace(path) && item.IsFileProtocol)
{
var file = directoryService.GetFile(path);
if (file != null && file.LastWriteTimeUtc != item.DateModified)
{
_logger.LogDebug("Refreshing {0} due to date modified timestamp change.", path);
return true;
}
}
return false;
}
// Run last
public int Order => 100;
}
}