diff options
Diffstat (limited to 'Emby.Dlna/PlayTo/Device.cs')
| -rw-r--r-- | Emby.Dlna/PlayTo/Device.cs | 401 |
1 files changed, 168 insertions, 233 deletions
diff --git a/Emby.Dlna/PlayTo/Device.cs b/Emby.Dlna/PlayTo/Device.cs index 6c580d15bd..d21cc69132 100644 --- a/Emby.Dlna/PlayTo/Device.cs +++ b/Emby.Dlna/PlayTo/Device.cs @@ -1,5 +1,3 @@ -#nullable disable - #pragma warning disable CS1591 using System; @@ -20,14 +18,12 @@ namespace Emby.Dlna.PlayTo { public class Device : IDisposable { - private static readonly CultureInfo UsCulture = new CultureInfo("en-US"); - private readonly IHttpClientFactory _httpClientFactory; private readonly ILogger _logger; private readonly object _timerLock = new object(); - private Timer _timer; + private Timer? _timer; private int _muteVol; private int _volume; private DateTime _lastVolumeRefresh; @@ -42,13 +38,13 @@ namespace Emby.Dlna.PlayTo _logger = logger; } - public event EventHandler<PlaybackStartEventArgs> PlaybackStart; + public event EventHandler<PlaybackStartEventArgs>? PlaybackStart; - public event EventHandler<PlaybackProgressEventArgs> PlaybackProgress; + public event EventHandler<PlaybackProgressEventArgs>? PlaybackProgress; - public event EventHandler<PlaybackStoppedEventArgs> PlaybackStopped; + public event EventHandler<PlaybackStoppedEventArgs>? PlaybackStopped; - public event EventHandler<MediaChangedEventArgs> MediaChanged; + public event EventHandler<MediaChangedEventArgs>? MediaChanged; public DeviceInfo Properties { get; set; } @@ -71,19 +67,19 @@ namespace Emby.Dlna.PlayTo public TransportState TransportState { get; private set; } - public bool IsPlaying => TransportState == TransportState.Playing; + public bool IsPlaying => TransportState == TransportState.PLAYING; - public bool IsPaused => TransportState == TransportState.Paused || TransportState == TransportState.PausedPlayback; + public bool IsPaused => TransportState == TransportState.PAUSED_PLAYBACK; - public bool IsStopped => TransportState == TransportState.Stopped; + public bool IsStopped => TransportState == TransportState.STOPPED; - public Action OnDeviceUnavailable { get; set; } + public Action? OnDeviceUnavailable { get; set; } - private TransportCommands AvCommands { get; set; } + private TransportCommands? AvCommands { get; set; } - private TransportCommands RendererCommands { get; set; } + private TransportCommands? RendererCommands { get; set; } - public UBaseObject CurrentMediaInfo { get; private set; } + public UBaseObject? CurrentMediaInfo { get; private set; } public void Start() { @@ -133,7 +129,7 @@ namespace Emby.Dlna.PlayTo _volumeRefreshActive = true; var time = immediate ? 100 : 10000; - _timer.Change(time, Timeout.Infinite); + _timer?.Change(time, Timeout.Infinite); } } @@ -151,7 +147,7 @@ namespace Emby.Dlna.PlayTo _volumeRefreshActive = false; - _timer.Change(Timeout.Infinite, Timeout.Infinite); + _timer?.Change(Timeout.Infinite, Timeout.Infinite); } } @@ -201,7 +197,7 @@ namespace Emby.Dlna.PlayTo } } - private DeviceService GetServiceRenderingControl() + private DeviceService? GetServiceRenderingControl() { var services = Properties.Services; @@ -209,7 +205,7 @@ namespace Emby.Dlna.PlayTo services.FirstOrDefault(s => (s.ServiceType ?? string.Empty).StartsWith("urn:schemas-upnp-org:service:RenderingControl", StringComparison.OrdinalIgnoreCase)); } - private DeviceService GetAvTransportService() + private DeviceService? GetAvTransportService() { var services = Properties.Services; @@ -222,14 +218,14 @@ namespace Emby.Dlna.PlayTo var rendererCommands = await GetRenderingProtocolAsync(cancellationToken).ConfigureAwait(false); var command = rendererCommands?.ServiceActions.FirstOrDefault(c => c.Name == "SetMute"); - if (command == null) + if (command is null) { return false; } var service = GetServiceRenderingControl(); - if (service == null) + if (service is null) { return false; } @@ -237,12 +233,12 @@ namespace Emby.Dlna.PlayTo _logger.LogDebug("Setting mute"); var value = mute ? 1 : 0; - await new SsdpHttpClient(_httpClientFactory) + await new DlnaHttpClient(_logger, _httpClientFactory) .SendCommandAsync( Properties.BaseUrl, service, command.Name, - rendererCommands.BuildPost(command, service.ServiceType, value), + rendererCommands!.BuildPost(command, service.ServiceType, value), // null checked above cancellationToken: cancellationToken) .ConfigureAwait(false); @@ -262,28 +258,23 @@ namespace Emby.Dlna.PlayTo var rendererCommands = await GetRenderingProtocolAsync(cancellationToken).ConfigureAwait(false); var command = rendererCommands?.ServiceActions.FirstOrDefault(c => c.Name == "SetVolume"); - if (command == null) + if (command is null) { return; } - var service = GetServiceRenderingControl(); - - if (service == null) - { - throw new InvalidOperationException("Unable to find service"); - } + var service = GetServiceRenderingControl() ?? throw new InvalidOperationException("Unable to find service"); // Set it early and assume it will succeed // Remote control will perform better Volume = value; - await new SsdpHttpClient(_httpClientFactory) + await new DlnaHttpClient(_logger, _httpClientFactory) .SendCommandAsync( Properties.BaseUrl, service, command.Name, - rendererCommands.BuildPost(command, service.ServiceType, value), + rendererCommands!.BuildPost(command, service.ServiceType, value), // null checked above cancellationToken: cancellationToken) .ConfigureAwait(false); } @@ -293,31 +284,25 @@ namespace Emby.Dlna.PlayTo var avCommands = await GetAVProtocolAsync(cancellationToken).ConfigureAwait(false); var command = avCommands?.ServiceActions.FirstOrDefault(c => c.Name == "Seek"); - if (command == null) + if (command is null) { return; } - var service = GetAvTransportService(); - - if (service == null) - { - throw new InvalidOperationException("Unable to find service"); - } - - await new SsdpHttpClient(_httpClientFactory) + var service = GetAvTransportService() ?? throw new InvalidOperationException("Unable to find service"); + await new DlnaHttpClient(_logger, _httpClientFactory) .SendCommandAsync( Properties.BaseUrl, service, command.Name, - avCommands.BuildPost(command, service.ServiceType, string.Format(CultureInfo.InvariantCulture, "{0:hh}:{0:mm}:{0:ss}", value), "REL_TIME"), + avCommands!.BuildPost(command, service.ServiceType, string.Format(CultureInfo.InvariantCulture, "{0:hh}:{0:mm}:{0:ss}", value), "REL_TIME"), // null checked above cancellationToken: cancellationToken) .ConfigureAwait(false); RestartTimer(true); } - public async Task SetAvTransport(string url, string header, string metaData, CancellationToken cancellationToken) + public async Task SetAvTransport(string url, string? header, string metaData, CancellationToken cancellationToken) { var avCommands = await GetAVProtocolAsync(cancellationToken).ConfigureAwait(false); @@ -326,7 +311,7 @@ namespace Emby.Dlna.PlayTo _logger.LogDebug("{0} - SetAvTransport Uri: {1} DlnaHeaders: {2}", Properties.Name, url, header); var command = avCommands?.ServiceActions.FirstOrDefault(c => c.Name == "SetAVTransportURI"); - if (command == null) + if (command is null) { return; } @@ -337,15 +322,9 @@ namespace Emby.Dlna.PlayTo { "CurrentURIMetaData", CreateDidlMeta(metaData) } }; - var service = GetAvTransportService(); - - if (service == null) - { - throw new InvalidOperationException("Unable to find service"); - } - - var post = avCommands.BuildPost(command, service.ServiceType, url, dictionary); - await new SsdpHttpClient(_httpClientFactory) + var service = GetAvTransportService() ?? throw new InvalidOperationException("Unable to find service"); + var post = avCommands!.BuildPost(command, service.ServiceType, url, dictionary); // null checked above + await new DlnaHttpClient(_logger, _httpClientFactory) .SendCommandAsync( Properties.BaseUrl, service, @@ -374,7 +353,7 @@ namespace Emby.Dlna.PlayTo * SetNextAvTransport is used to specify to the DLNA device what is the next track to play. * Without that information, the next track command on the device does not work. */ - public async Task SetNextAvTransport(string url, string header, string metaData, CancellationToken cancellationToken = default) + public async Task SetNextAvTransport(string url, string? header, string metaData, CancellationToken cancellationToken = default) { var avCommands = await GetAVProtocolAsync(cancellationToken).ConfigureAwait(false); @@ -382,8 +361,8 @@ namespace Emby.Dlna.PlayTo _logger.LogDebug("{PropertyName} - SetNextAvTransport Uri: {Url} DlnaHeaders: {Header}", Properties.Name, url, header); - var command = avCommands.ServiceActions.FirstOrDefault(c => string.Equals(c.Name, "SetNextAVTransportURI", StringComparison.OrdinalIgnoreCase)); - if (command == null) + var command = avCommands?.ServiceActions.FirstOrDefault(c => string.Equals(c.Name, "SetNextAVTransportURI", StringComparison.OrdinalIgnoreCase)); + if (command is null) { return; } @@ -394,15 +373,10 @@ namespace Emby.Dlna.PlayTo { "NextURIMetaData", CreateDidlMeta(metaData) } }; - var service = GetAvTransportService(); - - if (service == null) - { - throw new InvalidOperationException("Unable to find service"); - } - - var post = avCommands.BuildPost(command, service.ServiceType, url, dictionary); - await new SsdpHttpClient(_httpClientFactory).SendCommandAsync(Properties.BaseUrl, service, command.Name, post, header: header, cancellationToken) + var service = GetAvTransportService() ?? throw new InvalidOperationException("Unable to find service"); + var post = avCommands!.BuildPost(command, service.ServiceType, url, dictionary); // null checked above + await new DlnaHttpClient(_logger, _httpClientFactory) + .SendCommandAsync(Properties.BaseUrl, service, command.Name, post, header, cancellationToken) .ConfigureAwait(false); } @@ -419,18 +393,13 @@ namespace Emby.Dlna.PlayTo private Task SetPlay(TransportCommands avCommands, CancellationToken cancellationToken) { var command = avCommands.ServiceActions.FirstOrDefault(c => c.Name == "Play"); - if (command == null) + if (command is null) { return Task.CompletedTask; } - var service = GetAvTransportService(); - if (service == null) - { - throw new InvalidOperationException("Unable to find service"); - } - - return new SsdpHttpClient(_httpClientFactory).SendCommandAsync( + var service = GetAvTransportService() ?? throw new InvalidOperationException("Unable to find service"); + return new DlnaHttpClient(_logger, _httpClientFactory).SendCommandAsync( Properties.BaseUrl, service, command.Name, @@ -441,7 +410,7 @@ namespace Emby.Dlna.PlayTo public async Task SetPlay(CancellationToken cancellationToken) { var avCommands = await GetAVProtocolAsync(cancellationToken).ConfigureAwait(false); - if (avCommands == null) + if (avCommands is null) { return; } @@ -456,19 +425,18 @@ namespace Emby.Dlna.PlayTo var avCommands = await GetAVProtocolAsync(cancellationToken).ConfigureAwait(false); var command = avCommands?.ServiceActions.FirstOrDefault(c => c.Name == "Stop"); - if (command == null) + if (command is null) { return; } - var service = GetAvTransportService(); - - await new SsdpHttpClient(_httpClientFactory) + var service = GetAvTransportService() ?? throw new InvalidOperationException("Unable to find service"); + await new DlnaHttpClient(_logger, _httpClientFactory) .SendCommandAsync( Properties.BaseUrl, service, command.Name, - avCommands.BuildPost(command, service.ServiceType, 1), + avCommands!.BuildPost(command, service.ServiceType, 1), // null checked above cancellationToken: cancellationToken) .ConfigureAwait(false); @@ -480,28 +448,27 @@ namespace Emby.Dlna.PlayTo var avCommands = await GetAVProtocolAsync(cancellationToken).ConfigureAwait(false); var command = avCommands?.ServiceActions.FirstOrDefault(c => c.Name == "Pause"); - if (command == null) + if (command is null) { return; } - var service = GetAvTransportService(); - - await new SsdpHttpClient(_httpClientFactory) + var service = GetAvTransportService() ?? throw new InvalidOperationException("Unable to find service"); + await new DlnaHttpClient(_logger, _httpClientFactory) .SendCommandAsync( Properties.BaseUrl, service, command.Name, - avCommands.BuildPost(command, service.ServiceType, 1), + avCommands!.BuildPost(command, service.ServiceType, 1), // null checked above cancellationToken: cancellationToken) .ConfigureAwait(false); - TransportState = TransportState.Paused; + TransportState = TransportState.PAUSED_PLAYBACK; RestartTimer(true); } - private async void TimerCallback(object sender) + private async void TimerCallback(object? sender) { if (_disposed) { @@ -514,7 +481,7 @@ namespace Emby.Dlna.PlayTo var avCommands = await GetAVProtocolAsync(cancellationToken).ConfigureAwait(false); - if (avCommands == null) + if (avCommands is null) { return; } @@ -529,7 +496,7 @@ namespace Emby.Dlna.PlayTo if (transportState.HasValue) { // If we're not playing anything no need to get additional data - if (transportState.Value == TransportState.Stopped) + if (transportState.Value == TransportState.STOPPED) { UpdateMediaInfo(null, transportState.Value); } @@ -537,14 +504,14 @@ namespace Emby.Dlna.PlayTo { var tuple = await GetPositionInfo(avCommands, cancellationToken).ConfigureAwait(false); - var currentObject = tuple.Item2; + var currentObject = tuple.Track; - if (tuple.Item1 && currentObject == null) + if (tuple.Success && currentObject is null) { currentObject = await GetMediaInfo(avCommands, cancellationToken).ConfigureAwait(false); } - if (currentObject != null) + if (currentObject is not null) { UpdateMediaInfo(currentObject, transportState.Value); } @@ -558,7 +525,7 @@ namespace Emby.Dlna.PlayTo } // If we're not playing anything make sure we don't get data more often than necessary to keep the Session alive - if (transportState.Value == TransportState.Stopped) + if (transportState.Value == TransportState.STOPPED) { RestartTimerInactive(); } @@ -586,7 +553,7 @@ namespace Emby.Dlna.PlayTo if (_connectFailureCount >= 3) { var action = OnDeviceUnavailable; - if (action != null) + if (action is not null) { _logger.LogDebug("Disposing device due to loss of connection"); action(); @@ -608,31 +575,31 @@ namespace Emby.Dlna.PlayTo var rendererCommands = await GetRenderingProtocolAsync(cancellationToken).ConfigureAwait(false); var command = rendererCommands?.ServiceActions.FirstOrDefault(c => c.Name == "GetVolume"); - if (command == null) + if (command is null) { return; } var service = GetServiceRenderingControl(); - if (service == null) + if (service is null) { return; } - var result = await new SsdpHttpClient(_httpClientFactory).SendCommandAsync( + var result = await new DlnaHttpClient(_logger, _httpClientFactory).SendCommandAsync( Properties.BaseUrl, service, command.Name, - rendererCommands.BuildPost(command, service.ServiceType), + rendererCommands!.BuildPost(command, service.ServiceType), // null checked above cancellationToken: cancellationToken).ConfigureAwait(false); - if (result == null || result.Document == null) + if (result is null || result.Document is null) { return; } - var volume = result.Document.Descendants(UPnpNamespaces.RenderingControl + "GetVolumeResponse").Select(i => i.Element("CurrentVolume")).FirstOrDefault(i => i != null); + var volume = result.Document.Descendants(UPnpNamespaces.RenderingControl + "GetVolumeResponse").Select(i => i.Element("CurrentVolume")).FirstOrDefault(i => i is not null); var volumeValue = volume?.Value; if (string.IsNullOrWhiteSpace(volumeValue)) @@ -640,7 +607,7 @@ namespace Emby.Dlna.PlayTo return; } - Volume = int.Parse(volumeValue, UsCulture); + Volume = int.Parse(volumeValue, CultureInfo.InvariantCulture); if (Volume > 0) { @@ -658,33 +625,33 @@ namespace Emby.Dlna.PlayTo var rendererCommands = await GetRenderingProtocolAsync(cancellationToken).ConfigureAwait(false); var command = rendererCommands?.ServiceActions.FirstOrDefault(c => c.Name == "GetMute"); - if (command == null) + if (command is null) { return; } var service = GetServiceRenderingControl(); - if (service == null) + if (service is null) { return; } - var result = await new SsdpHttpClient(_httpClientFactory).SendCommandAsync( + var result = await new DlnaHttpClient(_logger, _httpClientFactory).SendCommandAsync( Properties.BaseUrl, service, command.Name, - rendererCommands.BuildPost(command, service.ServiceType), + rendererCommands!.BuildPost(command, service.ServiceType), // null checked above cancellationToken: cancellationToken).ConfigureAwait(false); - if (result == null || result.Document == null) + if (result is null || result.Document is null) { return; } var valueNode = result.Document.Descendants(UPnpNamespaces.RenderingControl + "GetMuteResponse") .Select(i => i.Element("CurrentMute")) - .FirstOrDefault(i => i != null); + .FirstOrDefault(i => i is not null); IsMuted = string.Equals(valueNode?.Value, "1", StringComparison.OrdinalIgnoreCase); } @@ -692,35 +659,35 @@ namespace Emby.Dlna.PlayTo private async Task<TransportState?> GetTransportInfo(TransportCommands avCommands, CancellationToken cancellationToken) { var command = avCommands.ServiceActions.FirstOrDefault(c => c.Name == "GetTransportInfo"); - if (command == null) + if (command is null) { return null; } var service = GetAvTransportService(); - if (service == null) + if (service is null) { return null; } - var result = await new SsdpHttpClient(_httpClientFactory).SendCommandAsync( + var result = await new DlnaHttpClient(_logger, _httpClientFactory).SendCommandAsync( Properties.BaseUrl, service, command.Name, avCommands.BuildPost(command, service.ServiceType), cancellationToken: cancellationToken).ConfigureAwait(false); - if (result == null || result.Document == null) + if (result is null || result.Document is null) { return null; } var transportState = - result.Document.Descendants(UPnpNamespaces.AvTransport + "GetTransportInfoResponse").Select(i => i.Element("CurrentTransportState")).FirstOrDefault(i => i != null); + result.Document.Descendants(UPnpNamespaces.AvTransport + "GetTransportInfoResponse").Select(i => i.Element("CurrentTransportState")).FirstOrDefault(i => i is not null); var transportStateValue = transportState?.Value; - if (transportStateValue != null + if (transportStateValue is not null && Enum.TryParse(transportStateValue, true, out TransportState state)) { return state; @@ -729,41 +696,41 @@ namespace Emby.Dlna.PlayTo return null; } - private async Task<UBaseObject> GetMediaInfo(TransportCommands avCommands, CancellationToken cancellationToken) + private async Task<UBaseObject?> GetMediaInfo(TransportCommands avCommands, CancellationToken cancellationToken) { var command = avCommands.ServiceActions.FirstOrDefault(c => c.Name == "GetMediaInfo"); - if (command == null) + if (command is null) { return null; } var service = GetAvTransportService(); - if (service == null) + if (service is null) { throw new InvalidOperationException("Unable to find service"); } var rendererCommands = await GetRenderingProtocolAsync(cancellationToken).ConfigureAwait(false); - if (rendererCommands == null) + if (rendererCommands is null) { return null; } - var result = await new SsdpHttpClient(_httpClientFactory).SendCommandAsync( + var result = await new DlnaHttpClient(_logger, _httpClientFactory).SendCommandAsync( Properties.BaseUrl, service, command.Name, rendererCommands.BuildPost(command, service.ServiceType), cancellationToken: cancellationToken).ConfigureAwait(false); - if (result == null || result.Document == null) + if (result is null || result.Document is null) { return null; } var track = result.Document.Descendants("CurrentURIMetaData").FirstOrDefault(); - if (track == null) + if (track is null) { return null; } @@ -779,7 +746,7 @@ namespace Emby.Dlna.PlayTo track = result.Document.Descendants("CurrentURI").FirstOrDefault(); - if (track == null) + if (track is null) { return null; } @@ -799,67 +766,67 @@ namespace Emby.Dlna.PlayTo return null; } - private async Task<(bool, UBaseObject)> GetPositionInfo(TransportCommands avCommands, CancellationToken cancellationToken) + private async Task<(bool Success, UBaseObject? Track)> GetPositionInfo(TransportCommands avCommands, CancellationToken cancellationToken) { var command = avCommands.ServiceActions.FirstOrDefault(c => c.Name == "GetPositionInfo"); - if (command == null) + if (command is null) { return (false, null); } var service = GetAvTransportService(); - if (service == null) + if (service is null) { throw new InvalidOperationException("Unable to find service"); } var rendererCommands = await GetRenderingProtocolAsync(cancellationToken).ConfigureAwait(false); - if (rendererCommands == null) + if (rendererCommands is null) { return (false, null); } - var result = await new SsdpHttpClient(_httpClientFactory).SendCommandAsync( + var result = await new DlnaHttpClient(_logger, _httpClientFactory).SendCommandAsync( Properties.BaseUrl, service, command.Name, rendererCommands.BuildPost(command, service.ServiceType), cancellationToken: cancellationToken).ConfigureAwait(false); - if (result == null || result.Document == null) + if (result is null || result.Document is null) { return (false, null); } - var trackUriElem = result.Document.Descendants(UPnpNamespaces.AvTransport + "GetPositionInfoResponse").Select(i => i.Element("TrackURI")).FirstOrDefault(i => i != null); + var trackUriElem = result.Document.Descendants(UPnpNamespaces.AvTransport + "GetPositionInfoResponse").Select(i => i.Element("TrackURI")).FirstOrDefault(i => i is not null); var trackUri = trackUriElem?.Value; - var durationElem = result.Document.Descendants(UPnpNamespaces.AvTransport + "GetPositionInfoResponse").Select(i => i.Element("TrackDuration")).FirstOrDefault(i => i != null); + var durationElem = result.Document.Descendants(UPnpNamespaces.AvTransport + "GetPositionInfoResponse").Select(i => i.Element("TrackDuration")).FirstOrDefault(i => i is not null); var duration = durationElem?.Value; if (!string.IsNullOrWhiteSpace(duration) && !string.Equals(duration, "NOT_IMPLEMENTED", StringComparison.OrdinalIgnoreCase)) { - Duration = TimeSpan.Parse(duration, UsCulture); + Duration = TimeSpan.Parse(duration, CultureInfo.InvariantCulture); } else { Duration = null; } - var positionElem = result.Document.Descendants(UPnpNamespaces.AvTransport + "GetPositionInfoResponse").Select(i => i.Element("RelTime")).FirstOrDefault(i => i != null); + var positionElem = result.Document.Descendants(UPnpNamespaces.AvTransport + "GetPositionInfoResponse").Select(i => i.Element("RelTime")).FirstOrDefault(i => i is not null); var position = positionElem?.Value; if (!string.IsNullOrWhiteSpace(position) && !string.Equals(position, "NOT_IMPLEMENTED", StringComparison.OrdinalIgnoreCase)) { - Position = TimeSpan.Parse(position, UsCulture); + Position = TimeSpan.Parse(position, CultureInfo.InvariantCulture); } var track = result.Document.Descendants("TrackMetaData").FirstOrDefault(); - if (track == null) + if (track is null) { // If track is null, some vendors do this, use GetMediaInfo instead. return (true, null); @@ -872,7 +839,7 @@ namespace Emby.Dlna.PlayTo return (true, null); } - XElement uPnpResponse = null; + XElement? uPnpResponse = null; try { @@ -883,7 +850,7 @@ namespace Emby.Dlna.PlayTo _logger.LogError(ex, "Uncaught exception while parsing xml"); } - if (uPnpResponse == null) + if (uPnpResponse is null) { _logger.LogError("Failed to parse xml: \n {Xml}", trackString); return (true, null); @@ -896,7 +863,7 @@ namespace Emby.Dlna.PlayTo return (true, uTrack); } - private XElement ParseResponse(string xml) + private XElement? ParseResponse(string xml) { // Handle different variations sent back by devices. try @@ -930,12 +897,9 @@ namespace Emby.Dlna.PlayTo return null; } - private static UBaseObject CreateUBaseObject(XElement container, string trackUri) + private static UBaseObject CreateUBaseObject(XElement? container, string? trackUri) { - if (container == null) - { - throw new ArgumentNullException(nameof(container)); - } + ArgumentNullException.ThrowIfNull(container); var url = container.GetValue(UPnpNamespaces.Res); @@ -959,18 +923,15 @@ namespace Emby.Dlna.PlayTo private static string[] GetProtocolInfo(XElement container) { - if (container == null) - { - throw new ArgumentNullException(nameof(container)); - } + ArgumentNullException.ThrowIfNull(container); var resElement = container.Element(UPnpNamespaces.Res); - if (resElement != null) + if (resElement is not null) { var info = resElement.Attribute(UPnpNamespaces.ProtocolInfo); - if (info != null && !string.IsNullOrWhiteSpace(info.Value)) + if (info is not null && !string.IsNullOrWhiteSpace(info.Value)) { return info.Value.Split(':'); } @@ -979,9 +940,9 @@ namespace Emby.Dlna.PlayTo return new string[4]; } - private async Task<TransportCommands> GetAVProtocolAsync(CancellationToken cancellationToken) + private async Task<TransportCommands?> GetAVProtocolAsync(CancellationToken cancellationToken) { - if (AvCommands != null) + if (AvCommands is not null) { return AvCommands; } @@ -992,17 +953,17 @@ namespace Emby.Dlna.PlayTo } var avService = GetAvTransportService(); - if (avService == null) + if (avService is null) { return null; } string url = NormalizeUrl(Properties.BaseUrl, avService.ScpdUrl); - var httpClient = new SsdpHttpClient(_httpClientFactory); + var httpClient = new DlnaHttpClient(_logger, _httpClientFactory); var document = await httpClient.GetDataAsync(url, cancellationToken).ConfigureAwait(false); - if (document == null) + if (document is null) { return null; } @@ -1011,9 +972,9 @@ namespace Emby.Dlna.PlayTo return AvCommands; } - private async Task<TransportCommands> GetRenderingProtocolAsync(CancellationToken cancellationToken) + private async Task<TransportCommands?> GetRenderingProtocolAsync(CancellationToken cancellationToken) { - if (RendererCommands != null) + if (RendererCommands is not null) { return RendererCommands; } @@ -1024,17 +985,14 @@ namespace Emby.Dlna.PlayTo } var avService = GetServiceRenderingControl(); - if (avService == null) - { - throw new ArgumentException("Device AvService is null"); - } + ArgumentNullException.ThrowIfNull(avService); string url = NormalizeUrl(Properties.BaseUrl, avService.ScpdUrl); - var httpClient = new SsdpHttpClient(_httpClientFactory); + var httpClient = new DlnaHttpClient(_logger, _httpClientFactory); _logger.LogDebug("Dlna Device.GetRenderingProtocolAsync"); var document = await httpClient.GetDataAsync(url, cancellationToken).ConfigureAwait(false); - if (document == null) + if (document is null) { return null; } @@ -1064,12 +1022,12 @@ namespace Emby.Dlna.PlayTo return baseUrl + url; } - public static async Task<Device> CreateuPnpDeviceAsync(Uri url, IHttpClientFactory httpClientFactory, ILogger logger, CancellationToken cancellationToken) + public static async Task<Device?> CreateuPnpDeviceAsync(Uri url, IHttpClientFactory httpClientFactory, ILogger logger, CancellationToken cancellationToken) { - var ssdpHttpClient = new SsdpHttpClient(httpClientFactory); + var ssdpHttpClient = new DlnaHttpClient(logger, httpClientFactory); var document = await ssdpHttpClient.GetDataAsync(url.ToString(), cancellationToken).ConfigureAwait(false); - if (document == null) + if (document is null) { return null; } @@ -1077,13 +1035,13 @@ namespace Emby.Dlna.PlayTo var friendlyNames = new List<string>(); var name = document.Descendants(UPnpNamespaces.Ud.GetName("friendlyName")).FirstOrDefault(); - if (name != null && !string.IsNullOrWhiteSpace(name.Value)) + if (name is not null && !string.IsNullOrWhiteSpace(name.Value)) { friendlyNames.Add(name.Value); } var room = document.Descendants(UPnpNamespaces.Ud.GetName("roomName")).FirstOrDefault(); - if (room != null && !string.IsNullOrWhiteSpace(room.Value)) + if (room is not null && !string.IsNullOrWhiteSpace(room.Value)) { friendlyNames.Add(room.Value); } @@ -1095,74 +1053,74 @@ namespace Emby.Dlna.PlayTo }; var model = document.Descendants(UPnpNamespaces.Ud.GetName("modelName")).FirstOrDefault(); - if (model != null) + if (model is not null) { deviceProperties.ModelName = model.Value; } var modelNumber = document.Descendants(UPnpNamespaces.Ud.GetName("modelNumber")).FirstOrDefault(); - if (modelNumber != null) + if (modelNumber is not null) { deviceProperties.ModelNumber = modelNumber.Value; } var uuid = document.Descendants(UPnpNamespaces.Ud.GetName("UDN")).FirstOrDefault(); - if (uuid != null) + if (uuid is not null) { deviceProperties.UUID = uuid.Value; } var manufacturer = document.Descendants(UPnpNamespaces.Ud.GetName("manufacturer")).FirstOrDefault(); - if (manufacturer != null) + if (manufacturer is not null) { deviceProperties.Manufacturer = manufacturer.Value; } var manufacturerUrl = document.Descendants(UPnpNamespaces.Ud.GetName("manufacturerURL")).FirstOrDefault(); - if (manufacturerUrl != null) + if (manufacturerUrl is not null) { deviceProperties.ManufacturerUrl = manufacturerUrl.Value; } var presentationUrl = document.Descendants(UPnpNamespaces.Ud.GetName("presentationURL")).FirstOrDefault(); - if (presentationUrl != null) + if (presentationUrl is not null) { deviceProperties.PresentationUrl = presentationUrl.Value; } var modelUrl = document.Descendants(UPnpNamespaces.Ud.GetName("modelURL")).FirstOrDefault(); - if (modelUrl != null) + if (modelUrl is not null) { deviceProperties.ModelUrl = modelUrl.Value; } var serialNumber = document.Descendants(UPnpNamespaces.Ud.GetName("serialNumber")).FirstOrDefault(); - if (serialNumber != null) + if (serialNumber is not null) { deviceProperties.SerialNumber = serialNumber.Value; } var modelDescription = document.Descendants(UPnpNamespaces.Ud.GetName("modelDescription")).FirstOrDefault(); - if (modelDescription != null) + if (modelDescription is not null) { deviceProperties.ModelDescription = modelDescription.Value; } var icon = document.Descendants(UPnpNamespaces.Ud.GetName("icon")).FirstOrDefault(); - if (icon != null) + if (icon is not null) { deviceProperties.Icon = CreateIcon(icon); } foreach (var services in document.Descendants(UPnpNamespaces.Ud.GetName("serviceList"))) { - if (services == null) + if (services is null) { continue; } var servicesList = services.Descendants(UPnpNamespaces.Ud.GetName("service")); - if (servicesList == null) + if (servicesList is null) { continue; } @@ -1171,7 +1129,7 @@ namespace Emby.Dlna.PlayTo { var service = Create(element); - if (service != null) + if (service is not null) { deviceProperties.Services.Add(service); } @@ -1181,75 +1139,65 @@ namespace Emby.Dlna.PlayTo return new Device(deviceProperties, httpClientFactory, logger); } +#nullable enable private static DeviceIcon CreateIcon(XElement element) { - if (element == null) - { - throw new ArgumentNullException(nameof(element)); - } + ArgumentNullException.ThrowIfNull(element); - var mimeType = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("mimetype")); var width = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("width")); var height = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("height")); - var depth = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("depth")); - var url = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("url")); - var widthValue = int.Parse(width, NumberStyles.Integer, UsCulture); - var heightValue = int.Parse(height, NumberStyles.Integer, UsCulture); + _ = int.TryParse(width, NumberStyles.Integer, CultureInfo.InvariantCulture, out var widthValue); + _ = int.TryParse(height, NumberStyles.Integer, CultureInfo.InvariantCulture, out var heightValue); return new DeviceIcon { - Depth = depth, + Depth = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("depth")) ?? string.Empty, Height = heightValue, - MimeType = mimeType, - Url = url, + MimeType = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("mimetype")) ?? string.Empty, + Url = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("url")) ?? string.Empty, Width = widthValue }; } private static DeviceService Create(XElement element) - { - var type = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("serviceType")); - var id = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("serviceId")); - var scpdUrl = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("SCPDURL")); - var controlURL = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("controlURL")); - var eventSubURL = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("eventSubURL")); - - return new DeviceService - { - ControlUrl = controlURL, - EventSubUrl = eventSubURL, - ScpdUrl = scpdUrl, - ServiceId = id, - ServiceType = type + => new DeviceService() + { + ControlUrl = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("controlURL")) ?? string.Empty, + EventSubUrl = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("eventSubURL")) ?? string.Empty, + ScpdUrl = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("SCPDURL")) ?? string.Empty, + ServiceId = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("serviceId")) ?? string.Empty, + ServiceType = element.GetDescendantValue(UPnpNamespaces.Ud.GetName("serviceType")) ?? string.Empty }; - } - private void UpdateMediaInfo(UBaseObject mediaInfo, TransportState state) + private void UpdateMediaInfo(UBaseObject? mediaInfo, TransportState state) { TransportState = state; var previousMediaInfo = CurrentMediaInfo; CurrentMediaInfo = mediaInfo; - if (previousMediaInfo == null && mediaInfo != null) + if (mediaInfo is null) { - if (state != TransportState.Stopped) + if (previousMediaInfo is not null) { - OnPlaybackStart(mediaInfo); + OnPlaybackStop(previousMediaInfo); } } - else if (mediaInfo != null && previousMediaInfo != null && !mediaInfo.Equals(previousMediaInfo)) + else if (previousMediaInfo is null) { - OnMediaChanged(previousMediaInfo, mediaInfo); + if (state != TransportState.STOPPED) + { + OnPlaybackStart(mediaInfo); + } } - else if (mediaInfo == null && previousMediaInfo != null) + else if (mediaInfo.Equals(previousMediaInfo)) { - OnPlaybackStop(previousMediaInfo); + OnPlaybackProgress(mediaInfo); } - else if (mediaInfo != null && mediaInfo.Equals(previousMediaInfo)) + else { - OnPlaybackProgress(mediaInfo); + OnMediaChanged(previousMediaInfo, mediaInfo); } } @@ -1260,10 +1208,7 @@ namespace Emby.Dlna.PlayTo return; } - PlaybackStart?.Invoke(this, new PlaybackStartEventArgs - { - MediaInfo = mediaInfo - }); + PlaybackStart?.Invoke(this, new PlaybackStartEventArgs(mediaInfo)); } private void OnPlaybackProgress(UBaseObject mediaInfo) @@ -1273,27 +1218,17 @@ namespace Emby.Dlna.PlayTo return; } - PlaybackProgress?.Invoke(this, new PlaybackProgressEventArgs - { - MediaInfo = mediaInfo - }); + PlaybackProgress?.Invoke(this, new PlaybackProgressEventArgs(mediaInfo)); } private void OnPlaybackStop(UBaseObject mediaInfo) { - PlaybackStopped?.Invoke(this, new PlaybackStoppedEventArgs - { - MediaInfo = mediaInfo - }); + PlaybackStopped?.Invoke(this, new PlaybackStoppedEventArgs(mediaInfo)); } private void OnMediaChanged(UBaseObject old, UBaseObject newMedia) { - MediaChanged?.Invoke(this, new MediaChangedEventArgs - { - OldMediaInfo = old, - NewMediaInfo = newMedia - }); + MediaChanged?.Invoke(this, new MediaChangedEventArgs(old, newMedia)); } /// <inheritdoc /> @@ -1320,7 +1255,7 @@ namespace Emby.Dlna.PlayTo } _timer = null; - Properties = null; + Properties = null!; _disposed = true; } |