diff options
Diffstat (limited to 'Emby.Server.Implementations/Syncplay/SyncplayController.cs')
| -rw-r--r-- | Emby.Server.Implementations/Syncplay/SyncplayController.cs | 158 |
1 files changed, 91 insertions, 67 deletions
diff --git a/Emby.Server.Implementations/Syncplay/SyncplayController.cs b/Emby.Server.Implementations/Syncplay/SyncplayController.cs index 02cf08cd7..8cc3d1fac 100644 --- a/Emby.Server.Implementations/Syncplay/SyncplayController.cs +++ b/Emby.Server.Implementations/Syncplay/SyncplayController.cs @@ -7,13 +7,15 @@ using MediaBrowser.Controller.Session; using MediaBrowser.Controller.Syncplay; using MediaBrowser.Model.Session; using MediaBrowser.Model.Syncplay; -using Microsoft.Extensions.Logging; namespace Emby.Server.Implementations.Syncplay { /// <summary> /// Class SyncplayController. /// </summary> + /// <remarks> + /// Class is not thread-safe, external locking is required when accessing methods. + /// </remarks> public class SyncplayController : ISyncplayController, IDisposable { /// <summary> @@ -40,11 +42,6 @@ namespace Emby.Server.Implementations.Syncplay } /// <summary> - /// The logger. - /// </summary> - private readonly ILogger _logger; - - /// <summary> /// The session manager. /// </summary> private readonly ISessionManager _sessionManager; @@ -71,11 +68,9 @@ namespace Emby.Server.Implementations.Syncplay private bool _disposed = false; public SyncplayController( - ILogger logger, ISessionManager sessionManager, ISyncplayManager syncplayManager) { - _logger = logger; _sessionManager = sessionManager; _syncplayManager = syncplayManager; } @@ -111,6 +106,16 @@ namespace Emby.Server.Implementations.Syncplay } /// <summary> + /// Converts DateTime to UTC string. + /// </summary> + /// <param name="date">The date to convert.</param> + /// <value>The UTC string.</value> + private string DateToUTCString(DateTime date) + { + return date.ToUniversalTime().ToString("o"); + } + + /// <summary> /// Filters sessions of this group. /// </summary> /// <param name="from">The current session.</param> @@ -149,15 +154,16 @@ namespace Emby.Server.Implementations.Syncplay /// <param name="from">The current session.</param> /// <param name="type">The filtering type.</param> /// <param name="message">The message to send.</param> + /// <param name="cancellationToken">The cancellation token.</param> /// <value>The task.</value> - private Task SendGroupUpdate<T>(SessionInfo from, BroadcastType type, GroupUpdate<T> message) + private Task SendGroupUpdate<T>(SessionInfo from, BroadcastType type, GroupUpdate<T> message, CancellationToken cancellationToken) { IEnumerable<Task> GetTasks() { SessionInfo[] sessions = FilterSessions(from, type); foreach (var session in sessions) { - yield return _sessionManager.SendSyncplayGroupUpdate(session.Id.ToString(), message, CancellationToken.None); + yield return _sessionManager.SendSyncplayGroupUpdate(session.Id.ToString(), message, cancellationToken); } } @@ -170,15 +176,16 @@ namespace Emby.Server.Implementations.Syncplay /// <param name="from">The current session.</param> /// <param name="type">The filtering type.</param> /// <param name="message">The message to send.</param> + /// <param name="cancellationToken">The cancellation token.</param> /// <value>The task.</value> - private Task SendCommand(SessionInfo from, BroadcastType type, SendCommand message) + private Task SendCommand(SessionInfo from, BroadcastType type, SendCommand message, CancellationToken cancellationToken) { IEnumerable<Task> GetTasks() { SessionInfo[] sessions = FilterSessions(from, type); foreach (var session in sessions) { - yield return _sessionManager.SendSyncplayCommand(session.Id.ToString(), message, CancellationToken.None); + yield return _sessionManager.SendSyncplayCommand(session.Id.ToString(), message, cancellationToken); } } @@ -197,8 +204,8 @@ namespace Emby.Server.Implementations.Syncplay GroupId = _group.GroupId.ToString(), Command = type, PositionTicks = _group.PositionTicks, - When = _group.LastActivity.ToUniversalTime().ToString("o"), - EmittedAt = DateTime.UtcNow.ToUniversalTime().ToString("o") + When = DateToUTCString(_group.LastActivity), + EmittedAt = DateToUTCString(DateTime.UtcNow) }; } @@ -219,46 +226,46 @@ namespace Emby.Server.Implementations.Syncplay } /// <inheritdoc /> - public void InitGroup(SessionInfo session) + public void InitGroup(SessionInfo session, CancellationToken cancellationToken) { _group.AddSession(session); _syncplayManager.AddSessionToGroup(session, this); _group.PlayingItem = session.FullNowPlayingItem; _group.IsPaused = true; - _group.PositionTicks = session.PlayState.PositionTicks ??= 0; + _group.PositionTicks = session.PlayState.PositionTicks ?? 0; _group.LastActivity = DateTime.UtcNow; - var updateSession = NewSyncplayGroupUpdate(GroupUpdateType.GroupJoined, DateTime.UtcNow.ToUniversalTime().ToString("o")); - SendGroupUpdate(session, BroadcastType.CurrentSession, updateSession); + var updateSession = NewSyncplayGroupUpdate(GroupUpdateType.GroupJoined, DateToUTCString(DateTime.UtcNow)); + SendGroupUpdate(session, BroadcastType.CurrentSession, updateSession, cancellationToken); var pauseCommand = NewSyncplayCommand(SendCommandType.Pause); - SendCommand(session, BroadcastType.CurrentSession, pauseCommand); + SendCommand(session, BroadcastType.CurrentSession, pauseCommand, cancellationToken); } /// <inheritdoc /> - public void SessionJoin(SessionInfo session, JoinGroupRequest request) + public void SessionJoin(SessionInfo session, JoinGroupRequest request, CancellationToken cancellationToken) { if (session.NowPlayingItem?.Id == _group.PlayingItem.Id && request.PlayingItemId == _group.PlayingItem.Id) { _group.AddSession(session); _syncplayManager.AddSessionToGroup(session, this); - var updateSession = NewSyncplayGroupUpdate(GroupUpdateType.GroupJoined, DateTime.UtcNow.ToUniversalTime().ToString("o")); - SendGroupUpdate(session, BroadcastType.CurrentSession, updateSession); + var updateSession = NewSyncplayGroupUpdate(GroupUpdateType.GroupJoined, DateToUTCString(DateTime.UtcNow)); + SendGroupUpdate(session, BroadcastType.CurrentSession, updateSession, cancellationToken); var updateOthers = NewSyncplayGroupUpdate(GroupUpdateType.UserJoined, session.UserName); - SendGroupUpdate(session, BroadcastType.AllExceptCurrentSession, updateOthers); + SendGroupUpdate(session, BroadcastType.AllExceptCurrentSession, updateOthers, cancellationToken); // Client join and play, syncing will happen client side if (!_group.IsPaused) { var playCommand = NewSyncplayCommand(SendCommandType.Play); - SendCommand(session, BroadcastType.CurrentSession, playCommand); + SendCommand(session, BroadcastType.CurrentSession, playCommand, cancellationToken); } else { var pauseCommand = NewSyncplayCommand(SendCommandType.Pause); - SendCommand(session, BroadcastType.CurrentSession, pauseCommand); + SendCommand(session, BroadcastType.CurrentSession, pauseCommand, cancellationToken); } } else @@ -267,25 +274,25 @@ namespace Emby.Server.Implementations.Syncplay playRequest.ItemIds = new Guid[] { _group.PlayingItem.Id }; playRequest.StartPositionTicks = _group.PositionTicks; var update = NewSyncplayGroupUpdate(GroupUpdateType.PrepareSession, playRequest); - SendGroupUpdate(session, BroadcastType.CurrentSession, update); + SendGroupUpdate(session, BroadcastType.CurrentSession, update, cancellationToken); } } /// <inheritdoc /> - public void SessionLeave(SessionInfo session) + public void SessionLeave(SessionInfo session, CancellationToken cancellationToken) { _group.RemoveSession(session); _syncplayManager.RemoveSessionFromGroup(session, this); var updateSession = NewSyncplayGroupUpdate(GroupUpdateType.GroupLeft, _group.PositionTicks); - SendGroupUpdate(session, BroadcastType.CurrentSession, updateSession); + SendGroupUpdate(session, BroadcastType.CurrentSession, updateSession, cancellationToken); var updateOthers = NewSyncplayGroupUpdate(GroupUpdateType.UserLeft, session.UserName); - SendGroupUpdate(session, BroadcastType.AllExceptCurrentSession, updateOthers); + SendGroupUpdate(session, BroadcastType.AllExceptCurrentSession, updateOthers, cancellationToken); } /// <inheritdoc /> - public void HandleRequest(SessionInfo session, PlaybackRequest request) + public void HandleRequest(SessionInfo session, PlaybackRequest request, CancellationToken cancellationToken) { // The server's job is to mantain a consistent state to which clients refer to, // as also to notify clients of state changes. @@ -294,19 +301,19 @@ namespace Emby.Server.Implementations.Syncplay switch (request.Type) { case PlaybackRequestType.Play: - HandlePlayRequest(session, request); + HandlePlayRequest(session, request, cancellationToken); break; case PlaybackRequestType.Pause: - HandlePauseRequest(session, request); + HandlePauseRequest(session, request, cancellationToken); break; case PlaybackRequestType.Seek: - HandleSeekRequest(session, request); + HandleSeekRequest(session, request, cancellationToken); break; case PlaybackRequestType.Buffering: - HandleBufferingRequest(session, request); + HandleBufferingRequest(session, request, cancellationToken); break; case PlaybackRequestType.BufferingDone: - HandleBufferingDoneRequest(session, request); + HandleBufferingDoneRequest(session, request, cancellationToken); break; case PlaybackRequestType.UpdatePing: HandlePingUpdateRequest(session, request); @@ -319,7 +326,8 @@ namespace Emby.Server.Implementations.Syncplay /// </summary> /// <param name="session">The session.</param> /// <param name="request">The play action.</param> - private void HandlePlayRequest(SessionInfo session, PlaybackRequest request) + /// <param name="cancellationToken">The cancellation token.</param> + private void HandlePlayRequest(SessionInfo session, PlaybackRequest request, CancellationToken cancellationToken) { if (_group.IsPaused) { @@ -337,13 +345,13 @@ namespace Emby.Server.Implementations.Syncplay ); var command = NewSyncplayCommand(SendCommandType.Play); - SendCommand(session, BroadcastType.AllGroup, command); + SendCommand(session, BroadcastType.AllGroup, command, cancellationToken); } else { // Client got lost, sending current state var command = NewSyncplayCommand(SendCommandType.Play); - SendCommand(session, BroadcastType.CurrentSession, command); + SendCommand(session, BroadcastType.CurrentSession, command, cancellationToken); } } @@ -352,7 +360,8 @@ namespace Emby.Server.Implementations.Syncplay /// </summary> /// <param name="session">The session.</param> /// <param name="request">The pause action.</param> - private void HandlePauseRequest(SessionInfo session, PlaybackRequest request) + /// <param name="cancellationToken">The cancellation token.</param> + private void HandlePauseRequest(SessionInfo session, PlaybackRequest request, CancellationToken cancellationToken) { if (!_group.IsPaused) { @@ -366,13 +375,13 @@ namespace Emby.Server.Implementations.Syncplay _group.PositionTicks += elapsedTime.Ticks > 0 ? elapsedTime.Ticks : 0; var command = NewSyncplayCommand(SendCommandType.Pause); - SendCommand(session, BroadcastType.AllGroup, command); + SendCommand(session, BroadcastType.AllGroup, command, cancellationToken); } else { // Client got lost, sending current state var command = NewSyncplayCommand(SendCommandType.Pause); - SendCommand(session, BroadcastType.CurrentSession, command); + SendCommand(session, BroadcastType.CurrentSession, command, cancellationToken); } } @@ -381,16 +390,11 @@ namespace Emby.Server.Implementations.Syncplay /// </summary> /// <param name="session">The session.</param> /// <param name="request">The seek action.</param> - private void HandleSeekRequest(SessionInfo session, PlaybackRequest request) + /// <param name="cancellationToken">The cancellation token.</param> + private void HandleSeekRequest(SessionInfo session, PlaybackRequest request, CancellationToken cancellationToken) { // Sanitize PositionTicks - var ticks = request.PositionTicks ??= 0; - ticks = ticks >= 0 ? ticks : 0; - if (_group.PlayingItem.RunTimeTicks != null) - { - var runTimeTicks = _group.PlayingItem.RunTimeTicks ??= 0; - ticks = ticks > runTimeTicks ? runTimeTicks : ticks; - } + var ticks = SanitizePositionTicks(request.PositionTicks); // Pause and seek _group.IsPaused = true; @@ -398,7 +402,7 @@ namespace Emby.Server.Implementations.Syncplay _group.LastActivity = DateTime.UtcNow; var command = NewSyncplayCommand(SendCommandType.Seek); - SendCommand(session, BroadcastType.AllGroup, command); + SendCommand(session, BroadcastType.AllGroup, command, cancellationToken); } /// <summary> @@ -406,7 +410,8 @@ namespace Emby.Server.Implementations.Syncplay /// </summary> /// <param name="session">The session.</param> /// <param name="request">The buffering action.</param> - private void HandleBufferingRequest(SessionInfo session, PlaybackRequest request) + /// <param name="cancellationToken">The cancellation token.</param> + private void HandleBufferingRequest(SessionInfo session, PlaybackRequest request, CancellationToken cancellationToken) { if (!_group.IsPaused) { @@ -421,16 +426,16 @@ namespace Emby.Server.Implementations.Syncplay // Send pause command to all non-buffering sessions var command = NewSyncplayCommand(SendCommandType.Pause); - SendCommand(session, BroadcastType.AllReady, command); + SendCommand(session, BroadcastType.AllReady, command, cancellationToken); var updateOthers = NewSyncplayGroupUpdate(GroupUpdateType.GroupWait, session.UserName); - SendGroupUpdate(session, BroadcastType.AllExceptCurrentSession, updateOthers); + SendGroupUpdate(session, BroadcastType.AllExceptCurrentSession, updateOthers, cancellationToken); } else { // Client got lost, sending current state var command = NewSyncplayCommand(SendCommandType.Pause); - SendCommand(session, BroadcastType.CurrentSession, command); + SendCommand(session, BroadcastType.CurrentSession, command, cancellationToken); } } @@ -439,26 +444,28 @@ namespace Emby.Server.Implementations.Syncplay /// </summary> /// <param name="session">The session.</param> /// <param name="request">The buffering-done action.</param> - private void HandleBufferingDoneRequest(SessionInfo session, PlaybackRequest request) + /// <param name="cancellationToken">The cancellation token.</param> + private void HandleBufferingDoneRequest(SessionInfo session, PlaybackRequest request, CancellationToken cancellationToken) { if (_group.IsPaused) { _group.SetBuffering(session, false); - var when = request.When ??= DateTime.UtcNow; + var requestTicks = SanitizePositionTicks(request.PositionTicks); + + var when = request.When ?? DateTime.UtcNow; var currentTime = DateTime.UtcNow; var elapsedTime = currentTime - when; - var clientPosition = TimeSpan.FromTicks(request.PositionTicks ??= 0) + elapsedTime; + var clientPosition = TimeSpan.FromTicks(requestTicks) + elapsedTime; var delay = _group.PositionTicks - clientPosition.Ticks; if (_group.IsBuffering()) { - // Others are buffering, tell this client to pause when ready + // Others are still buffering, tell this client to pause when ready var command = NewSyncplayCommand(SendCommandType.Pause); - command.When = currentTime.AddMilliseconds( - delay - ).ToUniversalTime().ToString("o"); - SendCommand(session, BroadcastType.CurrentSession, command); + var pauseAtTime = currentTime.AddMilliseconds(delay); + command.When = DateToUTCString(pauseAtTime); + SendCommand(session, BroadcastType.CurrentSession, command, cancellationToken); } else { @@ -472,7 +479,7 @@ namespace Emby.Server.Implementations.Syncplay delay ); var command = NewSyncplayCommand(SendCommandType.Play); - SendCommand(session, BroadcastType.AllExceptCurrentSession, command); + SendCommand(session, BroadcastType.AllExceptCurrentSession, command, cancellationToken); } else { @@ -485,7 +492,7 @@ namespace Emby.Server.Implementations.Syncplay ); var command = NewSyncplayCommand(SendCommandType.Play); - SendCommand(session, BroadcastType.AllGroup, command); + SendCommand(session, BroadcastType.AllGroup, command, cancellationToken); } } } @@ -493,8 +500,25 @@ namespace Emby.Server.Implementations.Syncplay { // Group was not waiting, make sure client has latest state var command = NewSyncplayCommand(SendCommandType.Play); - SendCommand(session, BroadcastType.CurrentSession, command); + SendCommand(session, BroadcastType.CurrentSession, command, cancellationToken); + } + } + + /// <summary> + /// Sanitizes the PositionTicks, considers the current playing item when available. + /// </summary> + /// <param name="positionTicks">The PositionTicks.</param> + /// <value>The sanitized PositionTicks.</value> + private long SanitizePositionTicks(long? positionTicks) + { + var ticks = positionTicks ?? 0; + ticks = ticks >= 0 ? ticks : 0; + if (_group.PlayingItem != null) + { + var runTimeTicks = _group.PlayingItem.RunTimeTicks ?? 0; + ticks = ticks > runTimeTicks ? runTimeTicks : ticks; } + return ticks; } /// <summary> @@ -505,7 +529,7 @@ namespace Emby.Server.Implementations.Syncplay private void HandlePingUpdateRequest(SessionInfo session, PlaybackRequest request) { // Collected pings are used to account for network latency when unpausing playback - _group.UpdatePing(session, request.Ping ??= _group.DefaulPing); + _group.UpdatePing(session, request.Ping ?? _group.DefaulPing); } /// <inheritdoc /> @@ -517,7 +541,7 @@ namespace Emby.Server.Implementations.Syncplay PlayingItemName = _group.PlayingItem.Name, PlayingItemId = _group.PlayingItem.Id.ToString(), PositionTicks = _group.PositionTicks, - Participants = _group.Participants.Values.Select(session => session.Session.UserName).ToArray() + Participants = _group.Participants.Values.Select(session => session.Session.UserName).Distinct().ToArray() }; } } |