jellyfin/MediaBrowser.Server.Implementations/LiveTv/ChannelImageProvider.cs

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C#
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using MediaBrowser.Common.IO;
using MediaBrowser.Controller.Configuration;
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using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.LiveTv;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Logging;
using MediaBrowser.Model.Net;
using System;
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using System.IO;
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using System.Linq;
using System.Net;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Server.Implementations.LiveTv
{
public class ChannelImageProvider : BaseMetadataProvider
{
private readonly ILiveTvManager _liveTvManager;
private readonly IProviderManager _providerManager;
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private readonly IFileSystem _fileSystem;
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public ChannelImageProvider(ILogManager logManager, IServerConfigurationManager configurationManager, ILiveTvManager liveTvManager, IProviderManager providerManager, IFileSystem fileSystem)
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: base(logManager, configurationManager)
{
_liveTvManager = liveTvManager;
_providerManager = providerManager;
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_fileSystem = fileSystem;
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}
public override bool Supports(BaseItem item)
{
return item is Channel;
}
protected override bool NeedsRefreshInternal(BaseItem item, BaseProviderInfo providerInfo)
{
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return !item.HasImage(ImageType.Primary);
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}
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public override async Task<bool> FetchAsync(BaseItem item, bool force, BaseProviderInfo providerInfo, CancellationToken cancellationToken)
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{
if (item.HasImage(ImageType.Primary))
{
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SetLastRefreshed(item, DateTime.UtcNow, providerInfo);
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return true;
}
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var channel = (Channel)item;
if (channel.HasProviderImage ?? true)
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{
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try
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{
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await DownloadImage(item, cancellationToken).ConfigureAwait(false);
}
catch (HttpException ex)
{
// Don't fail the provider on a 404
if (!ex.StatusCode.HasValue || ex.StatusCode.Value != HttpStatusCode.NotFound)
{
throw;
}
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}
}
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SetLastRefreshed(item, DateTime.UtcNow, providerInfo);
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return true;
}
private async Task DownloadImage(BaseItem item, CancellationToken cancellationToken)
{
var channel = (Channel)item;
var service = _liveTvManager.Services.FirstOrDefault(i => string.Equals(i.Name, channel.ServiceName, StringComparison.OrdinalIgnoreCase));
if (service != null)
{
var response = await service.GetChannelImageAsync(channel.ChannelId, cancellationToken).ConfigureAwait(false);
// Dummy up the original url
var url = channel.ServiceName + channel.ChannelId;
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await _providerManager.SaveImage(channel, response.Stream, response.MimeType, ImageType.Primary, null, url, cancellationToken).ConfigureAwait(false);
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}
}
public override MetadataProviderPriority Priority
{
get { return MetadataProviderPriority.Second; }
}
public override ItemUpdateType ItemUpdateType
{
get
{
return ItemUpdateType.ImageUpdate;
}
}
}
}