From 8a6ec2fb713cb77e91d2fceea8b4fce8e7d17395 Mon Sep 17 00:00:00 2001 From: gion Date: Wed, 6 May 2020 23:42:53 +0200 Subject: Rename Syncplay to SyncPlay --- Emby.Server.Implementations/ApplicationHost.cs | 6 +- .../Session/SessionManager.cs | 10 +- .../SyncPlay/SyncPlayController.cs | 548 +++++++++++++++++++++ .../SyncPlay/SyncPlayManager.cs | 385 +++++++++++++++ .../Syncplay/SyncplayController.cs | 548 --------------------- .../Syncplay/SyncplayManager.cs | 385 --------------- 6 files changed, 941 insertions(+), 941 deletions(-) create mode 100644 Emby.Server.Implementations/SyncPlay/SyncPlayController.cs create mode 100644 Emby.Server.Implementations/SyncPlay/SyncPlayManager.cs delete mode 100644 Emby.Server.Implementations/Syncplay/SyncplayController.cs delete mode 100644 Emby.Server.Implementations/Syncplay/SyncplayManager.cs (limited to 'Emby.Server.Implementations') diff --git a/Emby.Server.Implementations/ApplicationHost.cs b/Emby.Server.Implementations/ApplicationHost.cs index 8419014c2..730323c22 100644 --- a/Emby.Server.Implementations/ApplicationHost.cs +++ b/Emby.Server.Implementations/ApplicationHost.cs @@ -47,7 +47,7 @@ using Emby.Server.Implementations.Session; using Emby.Server.Implementations.SocketSharp; using Emby.Server.Implementations.TV; using Emby.Server.Implementations.Updates; -using Emby.Server.Implementations.Syncplay; +using Emby.Server.Implementations.SyncPlay; using MediaBrowser.Api; using MediaBrowser.Common; using MediaBrowser.Common.Configuration; @@ -81,7 +81,7 @@ using MediaBrowser.Controller.Session; using MediaBrowser.Controller.Sorting; using MediaBrowser.Controller.Subtitles; using MediaBrowser.Controller.TV; -using MediaBrowser.Controller.Syncplay; +using MediaBrowser.Controller.SyncPlay; using MediaBrowser.LocalMetadata.Savers; using MediaBrowser.MediaEncoding.BdInfo; using MediaBrowser.Model.Activity; @@ -645,7 +645,7 @@ namespace Emby.Server.Implementations serviceCollection.AddSingleton(); - serviceCollection.AddSingleton(); + serviceCollection.AddSingleton(); serviceCollection.AddSingleton(); serviceCollection.AddSingleton(); diff --git a/Emby.Server.Implementations/Session/SessionManager.cs b/Emby.Server.Implementations/Session/SessionManager.cs index 6a64209c1..aab745de4 100644 --- a/Emby.Server.Implementations/Session/SessionManager.cs +++ b/Emby.Server.Implementations/Session/SessionManager.cs @@ -25,7 +25,7 @@ using MediaBrowser.Model.Events; using MediaBrowser.Model.Library; using MediaBrowser.Model.Querying; using MediaBrowser.Model.Session; -using MediaBrowser.Model.Syncplay; +using MediaBrowser.Model.SyncPlay; using Microsoft.Extensions.Logging; namespace Emby.Server.Implementations.Session @@ -1156,19 +1156,19 @@ namespace Emby.Server.Implementations.Session } /// - public async Task SendSyncplayCommand(string sessionId, SendCommand command, CancellationToken cancellationToken) + public async Task SendSyncPlayCommand(string sessionId, SendCommand command, CancellationToken cancellationToken) { CheckDisposed(); var session = GetSessionToRemoteControl(sessionId); - await SendMessageToSession(session, "SyncplayCommand", command, cancellationToken).ConfigureAwait(false); + await SendMessageToSession(session, "SyncPlayCommand", command, cancellationToken).ConfigureAwait(false); } /// - public async Task SendSyncplayGroupUpdate(string sessionId, GroupUpdate command, CancellationToken cancellationToken) + public async Task SendSyncPlayGroupUpdate(string sessionId, GroupUpdate command, CancellationToken cancellationToken) { CheckDisposed(); var session = GetSessionToRemoteControl(sessionId); - await SendMessageToSession(session, "SyncplayGroupUpdate", command, cancellationToken).ConfigureAwait(false); + await SendMessageToSession(session, "SyncPlayGroupUpdate", command, cancellationToken).ConfigureAwait(false); } private IEnumerable TranslateItemForPlayback(Guid id, User user) diff --git a/Emby.Server.Implementations/SyncPlay/SyncPlayController.cs b/Emby.Server.Implementations/SyncPlay/SyncPlayController.cs new file mode 100644 index 000000000..9c9758de1 --- /dev/null +++ b/Emby.Server.Implementations/SyncPlay/SyncPlayController.cs @@ -0,0 +1,548 @@ +using System; +using System.Collections.Generic; +using System.Linq; +using System.Threading; +using System.Threading.Tasks; +using MediaBrowser.Controller.Session; +using MediaBrowser.Controller.SyncPlay; +using MediaBrowser.Model.Session; +using MediaBrowser.Model.SyncPlay; + +namespace Emby.Server.Implementations.SyncPlay +{ + /// + /// Class SyncPlayController. + /// + /// + /// Class is not thread-safe, external locking is required when accessing methods. + /// + public class SyncPlayController : ISyncPlayController, IDisposable + { + /// + /// Used to filter the sessions of a group. + /// + private enum BroadcastType + { + /// + /// All sessions will receive the message. + /// + AllGroup = 0, + /// + /// Only the specified session will receive the message. + /// + CurrentSession = 1, + /// + /// All sessions, except the current one, will receive the message. + /// + AllExceptCurrentSession = 2, + /// + /// Only sessions that are not buffering will receive the message. + /// + AllReady = 3 + } + + /// + /// The session manager. + /// + private readonly ISessionManager _sessionManager; + + /// + /// The SyncPlay manager. + /// + private readonly ISyncPlayManager _syncPlayManager; + + /// + /// The group to manage. + /// + private readonly GroupInfo _group = new GroupInfo(); + + /// + public Guid GetGroupId() => _group.GroupId; + + /// + public Guid GetPlayingItemId() => _group.PlayingItem.Id; + + /// + public bool IsGroupEmpty() => _group.IsEmpty(); + + private bool _disposed = false; + + public SyncPlayController( + ISessionManager sessionManager, + ISyncPlayManager syncPlayManager) + { + _sessionManager = sessionManager; + _syncPlayManager = syncPlayManager; + } + + /// + public void Dispose() + { + Dispose(true); + GC.SuppressFinalize(this); + } + + /// + /// Releases unmanaged and optionally managed resources. + /// + /// true to release both managed and unmanaged resources; false to release only unmanaged resources. + protected virtual void Dispose(bool disposing) + { + if (_disposed) + { + return; + } + + _disposed = true; + } + + // TODO: use this somewhere + private void CheckDisposed() + { + if (_disposed) + { + throw new ObjectDisposedException(GetType().Name); + } + } + + /// + /// Converts DateTime to UTC string. + /// + /// The date to convert. + /// The UTC string. + private string DateToUTCString(DateTime date) + { + return date.ToUniversalTime().ToString("o"); + } + + /// + /// Filters sessions of this group. + /// + /// The current session. + /// The filtering type. + /// The array of sessions matching the filter. + private SessionInfo[] FilterSessions(SessionInfo from, BroadcastType type) + { + switch (type) + { + case BroadcastType.CurrentSession: + return new SessionInfo[] { from }; + case BroadcastType.AllGroup: + return _group.Participants.Values.Select( + session => session.Session + ).ToArray(); + case BroadcastType.AllExceptCurrentSession: + return _group.Participants.Values.Select( + session => session.Session + ).Where( + session => !session.Id.Equals(from.Id) + ).ToArray(); + case BroadcastType.AllReady: + return _group.Participants.Values.Where( + session => !session.IsBuffering + ).Select( + session => session.Session + ).ToArray(); + default: + return new SessionInfo[] { }; + } + } + + /// + /// Sends a GroupUpdate message to the interested sessions. + /// + /// The current session. + /// The filtering type. + /// The message to send. + /// The cancellation token. + /// The task. + private Task SendGroupUpdate(SessionInfo from, BroadcastType type, GroupUpdate message, CancellationToken cancellationToken) + { + IEnumerable GetTasks() + { + SessionInfo[] sessions = FilterSessions(from, type); + foreach (var session in sessions) + { + yield return _sessionManager.SendSyncPlayGroupUpdate(session.Id.ToString(), message, cancellationToken); + } + } + + return Task.WhenAll(GetTasks()); + } + + /// + /// Sends a playback command to the interested sessions. + /// + /// The current session. + /// The filtering type. + /// The message to send. + /// The cancellation token. + /// The task. + private Task SendCommand(SessionInfo from, BroadcastType type, SendCommand message, CancellationToken cancellationToken) + { + IEnumerable GetTasks() + { + SessionInfo[] sessions = FilterSessions(from, type); + foreach (var session in sessions) + { + yield return _sessionManager.SendSyncPlayCommand(session.Id.ToString(), message, cancellationToken); + } + } + + return Task.WhenAll(GetTasks()); + } + + /// + /// Builds a new playback command with some default values. + /// + /// The command type. + /// The SendCommand. + private SendCommand NewSyncPlayCommand(SendCommandType type) + { + return new SendCommand() + { + GroupId = _group.GroupId.ToString(), + Command = type, + PositionTicks = _group.PositionTicks, + When = DateToUTCString(_group.LastActivity), + EmittedAt = DateToUTCString(DateTime.UtcNow) + }; + } + + /// + /// Builds a new group update message. + /// + /// The update type. + /// The data to send. + /// The GroupUpdate. + private GroupUpdate NewSyncPlayGroupUpdate(GroupUpdateType type, T data) + { + return new GroupUpdate() + { + GroupId = _group.GroupId.ToString(), + Type = type, + Data = data + }; + } + + /// + 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.LastActivity = DateTime.UtcNow; + + var updateSession = NewSyncPlayGroupUpdate(GroupUpdateType.GroupJoined, DateToUTCString(DateTime.UtcNow)); + SendGroupUpdate(session, BroadcastType.CurrentSession, updateSession, cancellationToken); + var pauseCommand = NewSyncPlayCommand(SendCommandType.Pause); + SendCommand(session, BroadcastType.CurrentSession, pauseCommand, cancellationToken); + } + + /// + 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, DateToUTCString(DateTime.UtcNow)); + SendGroupUpdate(session, BroadcastType.CurrentSession, updateSession, cancellationToken); + + var updateOthers = NewSyncPlayGroupUpdate(GroupUpdateType.UserJoined, session.UserName); + 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, cancellationToken); + } + else + { + var pauseCommand = NewSyncPlayCommand(SendCommandType.Pause); + SendCommand(session, BroadcastType.CurrentSession, pauseCommand, cancellationToken); + } + } + else + { + var playRequest = new PlayRequest(); + playRequest.ItemIds = new Guid[] { _group.PlayingItem.Id }; + playRequest.StartPositionTicks = _group.PositionTicks; + var update = NewSyncPlayGroupUpdate(GroupUpdateType.PrepareSession, playRequest); + SendGroupUpdate(session, BroadcastType.CurrentSession, update, cancellationToken); + } + } + + /// + 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, cancellationToken); + + var updateOthers = NewSyncPlayGroupUpdate(GroupUpdateType.UserLeft, session.UserName); + SendGroupUpdate(session, BroadcastType.AllExceptCurrentSession, updateOthers, cancellationToken); + } + + /// + 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. + // The actual syncing of media playback happens client side. + // Clients are aware of the server's time and use it to sync. + switch (request.Type) + { + case PlaybackRequestType.Play: + HandlePlayRequest(session, request, cancellationToken); + break; + case PlaybackRequestType.Pause: + HandlePauseRequest(session, request, cancellationToken); + break; + case PlaybackRequestType.Seek: + HandleSeekRequest(session, request, cancellationToken); + break; + case PlaybackRequestType.Buffering: + HandleBufferingRequest(session, request, cancellationToken); + break; + case PlaybackRequestType.BufferingDone: + HandleBufferingDoneRequest(session, request, cancellationToken); + break; + case PlaybackRequestType.UpdatePing: + HandlePingUpdateRequest(session, request); + break; + } + } + + /// + /// Handles a play action requested by a session. + /// + /// The session. + /// The play action. + /// The cancellation token. + private void HandlePlayRequest(SessionInfo session, PlaybackRequest request, CancellationToken cancellationToken) + { + if (_group.IsPaused) + { + // Pick a suitable time that accounts for latency + var delay = _group.GetHighestPing() * 2; + delay = delay < _group.DefaulPing ? _group.DefaulPing : delay; + + // Unpause group and set starting point in future + // Clients will start playback at LastActivity (datetime) from PositionTicks (playback position) + // The added delay does not guarantee, of course, that the command will be received in time + // Playback synchronization will mainly happen client side + _group.IsPaused = false; + _group.LastActivity = DateTime.UtcNow.AddMilliseconds( + delay + ); + + var command = NewSyncPlayCommand(SendCommandType.Play); + SendCommand(session, BroadcastType.AllGroup, command, cancellationToken); + } + else + { + // Client got lost, sending current state + var command = NewSyncPlayCommand(SendCommandType.Play); + SendCommand(session, BroadcastType.CurrentSession, command, cancellationToken); + } + } + + /// + /// Handles a pause action requested by a session. + /// + /// The session. + /// The pause action. + /// The cancellation token. + private void HandlePauseRequest(SessionInfo session, PlaybackRequest request, CancellationToken cancellationToken) + { + if (!_group.IsPaused) + { + // Pause group and compute the media playback position + _group.IsPaused = true; + var currentTime = DateTime.UtcNow; + var elapsedTime = currentTime - _group.LastActivity; + _group.LastActivity = currentTime; + // Seek only if playback actually started + // (a pause request may be issued during the delay added to account for latency) + _group.PositionTicks += elapsedTime.Ticks > 0 ? elapsedTime.Ticks : 0; + + var command = NewSyncPlayCommand(SendCommandType.Pause); + SendCommand(session, BroadcastType.AllGroup, command, cancellationToken); + } + else + { + // Client got lost, sending current state + var command = NewSyncPlayCommand(SendCommandType.Pause); + SendCommand(session, BroadcastType.CurrentSession, command, cancellationToken); + } + } + + /// + /// Handles a seek action requested by a session. + /// + /// The session. + /// The seek action. + /// The cancellation token. + private void HandleSeekRequest(SessionInfo session, PlaybackRequest request, CancellationToken cancellationToken) + { + // Sanitize PositionTicks + var ticks = SanitizePositionTicks(request.PositionTicks); + + // Pause and seek + _group.IsPaused = true; + _group.PositionTicks = ticks; + _group.LastActivity = DateTime.UtcNow; + + var command = NewSyncPlayCommand(SendCommandType.Seek); + SendCommand(session, BroadcastType.AllGroup, command, cancellationToken); + } + + /// + /// Handles a buffering action requested by a session. + /// + /// The session. + /// The buffering action. + /// The cancellation token. + private void HandleBufferingRequest(SessionInfo session, PlaybackRequest request, CancellationToken cancellationToken) + { + if (!_group.IsPaused) + { + // Pause group and compute the media playback position + _group.IsPaused = true; + var currentTime = DateTime.UtcNow; + var elapsedTime = currentTime - _group.LastActivity; + _group.LastActivity = currentTime; + _group.PositionTicks += elapsedTime.Ticks > 0 ? elapsedTime.Ticks : 0; + + _group.SetBuffering(session, true); + + // Send pause command to all non-buffering sessions + var command = NewSyncPlayCommand(SendCommandType.Pause); + SendCommand(session, BroadcastType.AllReady, command, cancellationToken); + + var updateOthers = NewSyncPlayGroupUpdate(GroupUpdateType.GroupWait, session.UserName); + SendGroupUpdate(session, BroadcastType.AllExceptCurrentSession, updateOthers, cancellationToken); + } + else + { + // Client got lost, sending current state + var command = NewSyncPlayCommand(SendCommandType.Pause); + SendCommand(session, BroadcastType.CurrentSession, command, cancellationToken); + } + } + + /// + /// Handles a buffering-done action requested by a session. + /// + /// The session. + /// The buffering-done action. + /// The cancellation token. + private void HandleBufferingDoneRequest(SessionInfo session, PlaybackRequest request, CancellationToken cancellationToken) + { + if (_group.IsPaused) + { + _group.SetBuffering(session, false); + + var requestTicks = SanitizePositionTicks(request.PositionTicks); + + var when = request.When ?? DateTime.UtcNow; + var currentTime = DateTime.UtcNow; + var elapsedTime = currentTime - when; + var clientPosition = TimeSpan.FromTicks(requestTicks) + elapsedTime; + var delay = _group.PositionTicks - clientPosition.Ticks; + + if (_group.IsBuffering()) + { + // Others are still buffering, tell this client to pause when ready + var command = NewSyncPlayCommand(SendCommandType.Pause); + var pauseAtTime = currentTime.AddMilliseconds(delay); + command.When = DateToUTCString(pauseAtTime); + SendCommand(session, BroadcastType.CurrentSession, command, cancellationToken); + } + else + { + // Let other clients resume as soon as the buffering client catches up + _group.IsPaused = false; + + if (delay > _group.GetHighestPing() * 2) + { + // Client that was buffering is recovering, notifying others to resume + _group.LastActivity = currentTime.AddMilliseconds( + delay + ); + var command = NewSyncPlayCommand(SendCommandType.Play); + SendCommand(session, BroadcastType.AllExceptCurrentSession, command, cancellationToken); + } + else + { + // Client, that was buffering, resumed playback but did not update others in time + delay = _group.GetHighestPing() * 2; + delay = delay < _group.DefaulPing ? _group.DefaulPing : delay; + + _group.LastActivity = currentTime.AddMilliseconds( + delay + ); + + var command = NewSyncPlayCommand(SendCommandType.Play); + SendCommand(session, BroadcastType.AllGroup, command, cancellationToken); + } + } + } + else + { + // Group was not waiting, make sure client has latest state + var command = NewSyncPlayCommand(SendCommandType.Play); + SendCommand(session, BroadcastType.CurrentSession, command, cancellationToken); + } + } + + /// + /// Sanitizes the PositionTicks, considers the current playing item when available. + /// + /// The PositionTicks. + /// The sanitized PositionTicks. + 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; + } + + /// + /// Updates ping of a session. + /// + /// The session. + /// The update. + 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); + } + + /// + public GroupInfoView GetInfo() + { + return new GroupInfoView() + { + GroupId = GetGroupId().ToString(), + PlayingItemName = _group.PlayingItem.Name, + PlayingItemId = _group.PlayingItem.Id.ToString(), + PositionTicks = _group.PositionTicks, + Participants = _group.Participants.Values.Select(session => session.Session.UserName).Distinct().ToArray() + }; + } + } +} diff --git a/Emby.Server.Implementations/SyncPlay/SyncPlayManager.cs b/Emby.Server.Implementations/SyncPlay/SyncPlayManager.cs new file mode 100644 index 000000000..d3197d97b --- /dev/null +++ b/Emby.Server.Implementations/SyncPlay/SyncPlayManager.cs @@ -0,0 +1,385 @@ +using System; +using System.Collections.Generic; +using System.Globalization; +using System.Linq; +using System.Threading; +using Microsoft.Extensions.Logging; +using MediaBrowser.Controller.Entities; +using MediaBrowser.Controller.Library; +using MediaBrowser.Controller.Session; +using MediaBrowser.Controller.SyncPlay; +using MediaBrowser.Model.Configuration; +using MediaBrowser.Model.SyncPlay; + +namespace Emby.Server.Implementations.SyncPlay +{ + /// + /// Class SyncPlayManager. + /// + public class SyncPlayManager : ISyncPlayManager, IDisposable + { + /// + /// The logger. + /// + private readonly ILogger _logger; + + /// + /// The user manager. + /// + private readonly IUserManager _userManager; + + /// + /// The session manager. + /// + private readonly ISessionManager _sessionManager; + + /// + /// The library manager. + /// + private readonly ILibraryManager _libraryManager; + + /// + /// The map between sessions and groups. + /// + private readonly Dictionary _sessionToGroupMap = + new Dictionary(StringComparer.OrdinalIgnoreCase); + + /// + /// The groups. + /// + private readonly Dictionary _groups = + new Dictionary(StringComparer.OrdinalIgnoreCase); + + /// + /// Lock used for accesing any group. + /// + private readonly object _groupsLock = new object(); + + private bool _disposed = false; + + public SyncPlayManager( + ILogger logger, + IUserManager userManager, + ISessionManager sessionManager, + ILibraryManager libraryManager) + { + _logger = logger; + _userManager = userManager; + _sessionManager = sessionManager; + _libraryManager = libraryManager; + + _sessionManager.SessionEnded += OnSessionManagerSessionEnded; + _sessionManager.PlaybackStopped += OnSessionManagerPlaybackStopped; + } + + /// + /// Gets all groups. + /// + /// All groups. + public IEnumerable Groups => _groups.Values; + + /// + public void Dispose() + { + Dispose(true); + GC.SuppressFinalize(this); + } + + /// + /// Releases unmanaged and optionally managed resources. + /// + /// true to release both managed and unmanaged resources; false to release only unmanaged resources. + protected virtual void Dispose(bool disposing) + { + if (_disposed) + { + return; + } + + _sessionManager.SessionEnded -= OnSessionManagerSessionEnded; + _sessionManager.PlaybackStopped -= OnSessionManagerPlaybackStopped; + + _disposed = true; + } + + private void CheckDisposed() + { + if (_disposed) + { + throw new ObjectDisposedException(GetType().Name); + } + } + + private void OnSessionManagerSessionEnded(object sender, SessionEventArgs e) + { + var session = e.SessionInfo; + if (!IsSessionInGroup(session)) return; + LeaveGroup(session, CancellationToken.None); + } + + private void OnSessionManagerPlaybackStopped(object sender, PlaybackStopEventArgs e) + { + var session = e.Session; + if (!IsSessionInGroup(session)) return; + LeaveGroup(session, CancellationToken.None); + } + + private bool IsSessionInGroup(SessionInfo session) + { + return _sessionToGroupMap.ContainsKey(session.Id); + } + + private bool HasAccessToItem(User user, Guid itemId) + { + var item = _libraryManager.GetItemById(itemId); + + // Check ParentalRating access + var hasParentalRatingAccess = true; + if (user.Policy.MaxParentalRating.HasValue) + { + hasParentalRatingAccess = item.InheritedParentalRatingValue <= user.Policy.MaxParentalRating; + } + + if (!user.Policy.EnableAllFolders && hasParentalRatingAccess) + { + var collections = _libraryManager.GetCollectionFolders(item).Select( + folder => folder.Id.ToString("N", CultureInfo.InvariantCulture) + ); + var intersect = collections.Intersect(user.Policy.EnabledFolders); + return intersect.Any(); + } + else + { + return hasParentalRatingAccess; + } + } + + private Guid? GetSessionGroup(SessionInfo session) + { + ISyncPlayController group; + _sessionToGroupMap.TryGetValue(session.Id, out group); + if (group != null) + { + return group.GetGroupId(); + } + else + { + return null; + } + } + + /// + public void NewGroup(SessionInfo session, CancellationToken cancellationToken) + { + var user = _userManager.GetUserById(session.UserId); + + if (user.Policy.SyncPlayAccess != SyncPlayAccess.CreateAndJoinGroups) + { + _logger.LogWarning("NewGroup: {0} does not have permission to create groups.", session.Id); + + var error = new GroupUpdate() + { + Type = GroupUpdateType.CreateGroupDenied + }; + _sessionManager.SendSyncPlayGroupUpdate(session.Id.ToString(), error, CancellationToken.None); + return; + } + + lock (_groupsLock) + { + if (IsSessionInGroup(session)) + { + LeaveGroup(session, cancellationToken); + } + + var group = new SyncPlayController(_sessionManager, this); + _groups[group.GetGroupId().ToString()] = group; + + group.InitGroup(session, cancellationToken); + } + } + + /// + public void JoinGroup(SessionInfo session, string groupId, JoinGroupRequest request, CancellationToken cancellationToken) + { + var user = _userManager.GetUserById(session.UserId); + + if (user.Policy.SyncPlayAccess == SyncPlayAccess.None) + { + _logger.LogWarning("JoinGroup: {0} does not have access to SyncPlay.", session.Id); + + var error = new GroupUpdate() + { + Type = GroupUpdateType.JoinGroupDenied + }; + _sessionManager.SendSyncPlayGroupUpdate(session.Id.ToString(), error, CancellationToken.None); + return; + } + + lock (_groupsLock) + { + ISyncPlayController group; + _groups.TryGetValue(groupId, out group); + + if (group == null) + { + _logger.LogWarning("JoinGroup: {0} tried to join group {0} that does not exist.", session.Id, groupId); + + var error = new GroupUpdate() + { + Type = GroupUpdateType.GroupDoesNotExist + }; + _sessionManager.SendSyncPlayGroupUpdate(session.Id.ToString(), error, CancellationToken.None); + return; + } + + if (!HasAccessToItem(user, group.GetPlayingItemId())) + { + _logger.LogWarning("JoinGroup: {0} does not have access to {1}.", session.Id, group.GetPlayingItemId()); + + var error = new GroupUpdate() + { + GroupId = group.GetGroupId().ToString(), + Type = GroupUpdateType.LibraryAccessDenied + }; + _sessionManager.SendSyncPlayGroupUpdate(session.Id.ToString(), error, CancellationToken.None); + return; + } + + if (IsSessionInGroup(session)) + { + if (GetSessionGroup(session).Equals(groupId)) return; + LeaveGroup(session, cancellationToken); + } + + group.SessionJoin(session, request, cancellationToken); + } + } + + /// + public void LeaveGroup(SessionInfo session, CancellationToken cancellationToken) + { + // TODO: determine what happens to users that are in a group and get their permissions revoked + lock (_groupsLock) + { + ISyncPlayController group; + _sessionToGroupMap.TryGetValue(session.Id, out group); + + if (group == null) + { + _logger.LogWarning("LeaveGroup: {0} does not belong to any group.", session.Id); + + var error = new GroupUpdate() + { + Type = GroupUpdateType.NotInGroup + }; + _sessionManager.SendSyncPlayGroupUpdate(session.Id.ToString(), error, CancellationToken.None); + return; + } + + group.SessionLeave(session, cancellationToken); + + if (group.IsGroupEmpty()) + { + _logger.LogInformation("LeaveGroup: removing empty group {0}.", group.GetGroupId()); + _groups.Remove(group.GetGroupId().ToString(), out _); + } + } + } + + /// + public List ListGroups(SessionInfo session, Guid filterItemId) + { + var user = _userManager.GetUserById(session.UserId); + + if (user.Policy.SyncPlayAccess == SyncPlayAccess.None) + { + return new List(); + } + + // Filter by item if requested + if (!filterItemId.Equals(Guid.Empty)) + { + return _groups.Values.Where( + group => group.GetPlayingItemId().Equals(filterItemId) && HasAccessToItem(user, group.GetPlayingItemId()) + ).Select( + group => group.GetInfo() + ).ToList(); + } + // Otherwise show all available groups + else + { + return _groups.Values.Where( + group => HasAccessToItem(user, group.GetPlayingItemId()) + ).Select( + group => group.GetInfo() + ).ToList(); + } + } + + /// + public void HandleRequest(SessionInfo session, PlaybackRequest request, CancellationToken cancellationToken) + { + var user = _userManager.GetUserById(session.UserId); + + if (user.Policy.SyncPlayAccess == SyncPlayAccess.None) + { + _logger.LogWarning("HandleRequest: {0} does not have access to SyncPlay.", session.Id); + + var error = new GroupUpdate() + { + Type = GroupUpdateType.JoinGroupDenied + }; + _sessionManager.SendSyncPlayGroupUpdate(session.Id.ToString(), error, CancellationToken.None); + return; + } + + lock (_groupsLock) + { + ISyncPlayController group; + _sessionToGroupMap.TryGetValue(session.Id, out group); + + if (group == null) + { + _logger.LogWarning("HandleRequest: {0} does not belong to any group.", session.Id); + + var error = new GroupUpdate() + { + Type = GroupUpdateType.NotInGroup + }; + _sessionManager.SendSyncPlayGroupUpdate(session.Id.ToString(), error, CancellationToken.None); + return; + } + + group.HandleRequest(session, request, cancellationToken); + } + } + + /// + public void AddSessionToGroup(SessionInfo session, ISyncPlayController group) + { + if (IsSessionInGroup(session)) + { + throw new InvalidOperationException("Session in other group already!"); + } + _sessionToGroupMap[session.Id] = group; + } + + /// + public void RemoveSessionFromGroup(SessionInfo session, ISyncPlayController group) + { + if (!IsSessionInGroup(session)) + { + throw new InvalidOperationException("Session not in any group!"); + } + + ISyncPlayController tempGroup; + _sessionToGroupMap.Remove(session.Id, out tempGroup); + + if (!tempGroup.GetGroupId().Equals(group.GetGroupId())) + { + throw new InvalidOperationException("Session was in wrong group!"); + } + } + } +} diff --git a/Emby.Server.Implementations/Syncplay/SyncplayController.cs b/Emby.Server.Implementations/Syncplay/SyncplayController.cs deleted file mode 100644 index 8cc3d1fac..000000000 --- a/Emby.Server.Implementations/Syncplay/SyncplayController.cs +++ /dev/null @@ -1,548 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Threading; -using System.Threading.Tasks; -using MediaBrowser.Controller.Session; -using MediaBrowser.Controller.Syncplay; -using MediaBrowser.Model.Session; -using MediaBrowser.Model.Syncplay; - -namespace Emby.Server.Implementations.Syncplay -{ - /// - /// Class SyncplayController. - /// - /// - /// Class is not thread-safe, external locking is required when accessing methods. - /// - public class SyncplayController : ISyncplayController, IDisposable - { - /// - /// Used to filter the sessions of a group. - /// - private enum BroadcastType - { - /// - /// All sessions will receive the message. - /// - AllGroup = 0, - /// - /// Only the specified session will receive the message. - /// - CurrentSession = 1, - /// - /// All sessions, except the current one, will receive the message. - /// - AllExceptCurrentSession = 2, - /// - /// Only sessions that are not buffering will receive the message. - /// - AllReady = 3 - } - - /// - /// The session manager. - /// - private readonly ISessionManager _sessionManager; - - /// - /// The syncplay manager. - /// - private readonly ISyncplayManager _syncplayManager; - - /// - /// The group to manage. - /// - private readonly GroupInfo _group = new GroupInfo(); - - /// - public Guid GetGroupId() => _group.GroupId; - - /// - public Guid GetPlayingItemId() => _group.PlayingItem.Id; - - /// - public bool IsGroupEmpty() => _group.IsEmpty(); - - private bool _disposed = false; - - public SyncplayController( - ISessionManager sessionManager, - ISyncplayManager syncplayManager) - { - _sessionManager = sessionManager; - _syncplayManager = syncplayManager; - } - - /// - public void Dispose() - { - Dispose(true); - GC.SuppressFinalize(this); - } - - /// - /// Releases unmanaged and optionally managed resources. - /// - /// true to release both managed and unmanaged resources; false to release only unmanaged resources. - protected virtual void Dispose(bool disposing) - { - if (_disposed) - { - return; - } - - _disposed = true; - } - - // TODO: use this somewhere - private void CheckDisposed() - { - if (_disposed) - { - throw new ObjectDisposedException(GetType().Name); - } - } - - /// - /// Converts DateTime to UTC string. - /// - /// The date to convert. - /// The UTC string. - private string DateToUTCString(DateTime date) - { - return date.ToUniversalTime().ToString("o"); - } - - /// - /// Filters sessions of this group. - /// - /// The current session. - /// The filtering type. - /// The array of sessions matching the filter. - private SessionInfo[] FilterSessions(SessionInfo from, BroadcastType type) - { - switch (type) - { - case BroadcastType.CurrentSession: - return new SessionInfo[] { from }; - case BroadcastType.AllGroup: - return _group.Participants.Values.Select( - session => session.Session - ).ToArray(); - case BroadcastType.AllExceptCurrentSession: - return _group.Participants.Values.Select( - session => session.Session - ).Where( - session => !session.Id.Equals(from.Id) - ).ToArray(); - case BroadcastType.AllReady: - return _group.Participants.Values.Where( - session => !session.IsBuffering - ).Select( - session => session.Session - ).ToArray(); - default: - return new SessionInfo[] { }; - } - } - - /// - /// Sends a GroupUpdate message to the interested sessions. - /// - /// The current session. - /// The filtering type. - /// The message to send. - /// The cancellation token. - /// The task. - private Task SendGroupUpdate(SessionInfo from, BroadcastType type, GroupUpdate message, CancellationToken cancellationToken) - { - IEnumerable GetTasks() - { - SessionInfo[] sessions = FilterSessions(from, type); - foreach (var session in sessions) - { - yield return _sessionManager.SendSyncplayGroupUpdate(session.Id.ToString(), message, cancellationToken); - } - } - - return Task.WhenAll(GetTasks()); - } - - /// - /// Sends a playback command to the interested sessions. - /// - /// The current session. - /// The filtering type. - /// The message to send. - /// The cancellation token. - /// The task. - private Task SendCommand(SessionInfo from, BroadcastType type, SendCommand message, CancellationToken cancellationToken) - { - IEnumerable GetTasks() - { - SessionInfo[] sessions = FilterSessions(from, type); - foreach (var session in sessions) - { - yield return _sessionManager.SendSyncplayCommand(session.Id.ToString(), message, cancellationToken); - } - } - - return Task.WhenAll(GetTasks()); - } - - /// - /// Builds a new playback command with some default values. - /// - /// The command type. - /// The SendCommand. - private SendCommand NewSyncplayCommand(SendCommandType type) - { - return new SendCommand() - { - GroupId = _group.GroupId.ToString(), - Command = type, - PositionTicks = _group.PositionTicks, - When = DateToUTCString(_group.LastActivity), - EmittedAt = DateToUTCString(DateTime.UtcNow) - }; - } - - /// - /// Builds a new group update message. - /// - /// The update type. - /// The data to send. - /// The GroupUpdate. - private GroupUpdate NewSyncplayGroupUpdate(GroupUpdateType type, T data) - { - return new GroupUpdate() - { - GroupId = _group.GroupId.ToString(), - Type = type, - Data = data - }; - } - - /// - 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.LastActivity = DateTime.UtcNow; - - var updateSession = NewSyncplayGroupUpdate(GroupUpdateType.GroupJoined, DateToUTCString(DateTime.UtcNow)); - SendGroupUpdate(session, BroadcastType.CurrentSession, updateSession, cancellationToken); - var pauseCommand = NewSyncplayCommand(SendCommandType.Pause); - SendCommand(session, BroadcastType.CurrentSession, pauseCommand, cancellationToken); - } - - /// - 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, DateToUTCString(DateTime.UtcNow)); - SendGroupUpdate(session, BroadcastType.CurrentSession, updateSession, cancellationToken); - - var updateOthers = NewSyncplayGroupUpdate(GroupUpdateType.UserJoined, session.UserName); - 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, cancellationToken); - } - else - { - var pauseCommand = NewSyncplayCommand(SendCommandType.Pause); - SendCommand(session, BroadcastType.CurrentSession, pauseCommand, cancellationToken); - } - } - else - { - var playRequest = new PlayRequest(); - playRequest.ItemIds = new Guid[] { _group.PlayingItem.Id }; - playRequest.StartPositionTicks = _group.PositionTicks; - var update = NewSyncplayGroupUpdate(GroupUpdateType.PrepareSession, playRequest); - SendGroupUpdate(session, BroadcastType.CurrentSession, update, cancellationToken); - } - } - - /// - 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, cancellationToken); - - var updateOthers = NewSyncplayGroupUpdate(GroupUpdateType.UserLeft, session.UserName); - SendGroupUpdate(session, BroadcastType.AllExceptCurrentSession, updateOthers, cancellationToken); - } - - /// - 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. - // The actual syncing of media playback happens client side. - // Clients are aware of the server's time and use it to sync. - switch (request.Type) - { - case PlaybackRequestType.Play: - HandlePlayRequest(session, request, cancellationToken); - break; - case PlaybackRequestType.Pause: - HandlePauseRequest(session, request, cancellationToken); - break; - case PlaybackRequestType.Seek: - HandleSeekRequest(session, request, cancellationToken); - break; - case PlaybackRequestType.Buffering: - HandleBufferingRequest(session, request, cancellationToken); - break; - case PlaybackRequestType.BufferingDone: - HandleBufferingDoneRequest(session, request, cancellationToken); - break; - case PlaybackRequestType.UpdatePing: - HandlePingUpdateRequest(session, request); - break; - } - } - - /// - /// Handles a play action requested by a session. - /// - /// The session. - /// The play action. - /// The cancellation token. - private void HandlePlayRequest(SessionInfo session, PlaybackRequest request, CancellationToken cancellationToken) - { - if (_group.IsPaused) - { - // Pick a suitable time that accounts for latency - var delay = _group.GetHighestPing() * 2; - delay = delay < _group.DefaulPing ? _group.DefaulPing : delay; - - // Unpause group and set starting point in future - // Clients will start playback at LastActivity (datetime) from PositionTicks (playback position) - // The added delay does not guarantee, of course, that the command will be received in time - // Playback synchronization will mainly happen client side - _group.IsPaused = false; - _group.LastActivity = DateTime.UtcNow.AddMilliseconds( - delay - ); - - var command = NewSyncplayCommand(SendCommandType.Play); - SendCommand(session, BroadcastType.AllGroup, command, cancellationToken); - } - else - { - // Client got lost, sending current state - var command = NewSyncplayCommand(SendCommandType.Play); - SendCommand(session, BroadcastType.CurrentSession, command, cancellationToken); - } - } - - /// - /// Handles a pause action requested by a session. - /// - /// The session. - /// The pause action. - /// The cancellation token. - private void HandlePauseRequest(SessionInfo session, PlaybackRequest request, CancellationToken cancellationToken) - { - if (!_group.IsPaused) - { - // Pause group and compute the media playback position - _group.IsPaused = true; - var currentTime = DateTime.UtcNow; - var elapsedTime = currentTime - _group.LastActivity; - _group.LastActivity = currentTime; - // Seek only if playback actually started - // (a pause request may be issued during the delay added to account for latency) - _group.PositionTicks += elapsedTime.Ticks > 0 ? elapsedTime.Ticks : 0; - - var command = NewSyncplayCommand(SendCommandType.Pause); - SendCommand(session, BroadcastType.AllGroup, command, cancellationToken); - } - else - { - // Client got lost, sending current state - var command = NewSyncplayCommand(SendCommandType.Pause); - SendCommand(session, BroadcastType.CurrentSession, command, cancellationToken); - } - } - - /// - /// Handles a seek action requested by a session. - /// - /// The session. - /// The seek action. - /// The cancellation token. - private void HandleSeekRequest(SessionInfo session, PlaybackRequest request, CancellationToken cancellationToken) - { - // Sanitize PositionTicks - var ticks = SanitizePositionTicks(request.PositionTicks); - - // Pause and seek - _group.IsPaused = true; - _group.PositionTicks = ticks; - _group.LastActivity = DateTime.UtcNow; - - var command = NewSyncplayCommand(SendCommandType.Seek); - SendCommand(session, BroadcastType.AllGroup, command, cancellationToken); - } - - /// - /// Handles a buffering action requested by a session. - /// - /// The session. - /// The buffering action. - /// The cancellation token. - private void HandleBufferingRequest(SessionInfo session, PlaybackRequest request, CancellationToken cancellationToken) - { - if (!_group.IsPaused) - { - // Pause group and compute the media playback position - _group.IsPaused = true; - var currentTime = DateTime.UtcNow; - var elapsedTime = currentTime - _group.LastActivity; - _group.LastActivity = currentTime; - _group.PositionTicks += elapsedTime.Ticks > 0 ? elapsedTime.Ticks : 0; - - _group.SetBuffering(session, true); - - // Send pause command to all non-buffering sessions - var command = NewSyncplayCommand(SendCommandType.Pause); - SendCommand(session, BroadcastType.AllReady, command, cancellationToken); - - var updateOthers = NewSyncplayGroupUpdate(GroupUpdateType.GroupWait, session.UserName); - SendGroupUpdate(session, BroadcastType.AllExceptCurrentSession, updateOthers, cancellationToken); - } - else - { - // Client got lost, sending current state - var command = NewSyncplayCommand(SendCommandType.Pause); - SendCommand(session, BroadcastType.CurrentSession, command, cancellationToken); - } - } - - /// - /// Handles a buffering-done action requested by a session. - /// - /// The session. - /// The buffering-done action. - /// The cancellation token. - private void HandleBufferingDoneRequest(SessionInfo session, PlaybackRequest request, CancellationToken cancellationToken) - { - if (_group.IsPaused) - { - _group.SetBuffering(session, false); - - var requestTicks = SanitizePositionTicks(request.PositionTicks); - - var when = request.When ?? DateTime.UtcNow; - var currentTime = DateTime.UtcNow; - var elapsedTime = currentTime - when; - var clientPosition = TimeSpan.FromTicks(requestTicks) + elapsedTime; - var delay = _group.PositionTicks - clientPosition.Ticks; - - if (_group.IsBuffering()) - { - // Others are still buffering, tell this client to pause when ready - var command = NewSyncplayCommand(SendCommandType.Pause); - var pauseAtTime = currentTime.AddMilliseconds(delay); - command.When = DateToUTCString(pauseAtTime); - SendCommand(session, BroadcastType.CurrentSession, command, cancellationToken); - } - else - { - // Let other clients resume as soon as the buffering client catches up - _group.IsPaused = false; - - if (delay > _group.GetHighestPing() * 2) - { - // Client that was buffering is recovering, notifying others to resume - _group.LastActivity = currentTime.AddMilliseconds( - delay - ); - var command = NewSyncplayCommand(SendCommandType.Play); - SendCommand(session, BroadcastType.AllExceptCurrentSession, command, cancellationToken); - } - else - { - // Client, that was buffering, resumed playback but did not update others in time - delay = _group.GetHighestPing() * 2; - delay = delay < _group.DefaulPing ? _group.DefaulPing : delay; - - _group.LastActivity = currentTime.AddMilliseconds( - delay - ); - - var command = NewSyncplayCommand(SendCommandType.Play); - SendCommand(session, BroadcastType.AllGroup, command, cancellationToken); - } - } - } - else - { - // Group was not waiting, make sure client has latest state - var command = NewSyncplayCommand(SendCommandType.Play); - SendCommand(session, BroadcastType.CurrentSession, command, cancellationToken); - } - } - - /// - /// Sanitizes the PositionTicks, considers the current playing item when available. - /// - /// The PositionTicks. - /// The sanitized PositionTicks. - 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; - } - - /// - /// Updates ping of a session. - /// - /// The session. - /// The update. - 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); - } - - /// - public GroupInfoView GetInfo() - { - return new GroupInfoView() - { - GroupId = GetGroupId().ToString(), - PlayingItemName = _group.PlayingItem.Name, - PlayingItemId = _group.PlayingItem.Id.ToString(), - PositionTicks = _group.PositionTicks, - Participants = _group.Participants.Values.Select(session => session.Session.UserName).Distinct().ToArray() - }; - } - } -} diff --git a/Emby.Server.Implementations/Syncplay/SyncplayManager.cs b/Emby.Server.Implementations/Syncplay/SyncplayManager.cs deleted file mode 100644 index 7074e2225..000000000 --- a/Emby.Server.Implementations/Syncplay/SyncplayManager.cs +++ /dev/null @@ -1,385 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Globalization; -using System.Linq; -using System.Threading; -using Microsoft.Extensions.Logging; -using MediaBrowser.Controller.Entities; -using MediaBrowser.Controller.Library; -using MediaBrowser.Controller.Session; -using MediaBrowser.Controller.Syncplay; -using MediaBrowser.Model.Configuration; -using MediaBrowser.Model.Syncplay; - -namespace Emby.Server.Implementations.Syncplay -{ - /// - /// Class SyncplayManager. - /// - public class SyncplayManager : ISyncplayManager, IDisposable - { - /// - /// The logger. - /// - private readonly ILogger _logger; - - /// - /// The user manager. - /// - private readonly IUserManager _userManager; - - /// - /// The session manager. - /// - private readonly ISessionManager _sessionManager; - - /// - /// The library manager. - /// - private readonly ILibraryManager _libraryManager; - - /// - /// The map between sessions and groups. - /// - private readonly Dictionary _sessionToGroupMap = - new Dictionary(StringComparer.OrdinalIgnoreCase); - - /// - /// The groups. - /// - private readonly Dictionary _groups = - new Dictionary(StringComparer.OrdinalIgnoreCase); - - /// - /// Lock used for accesing any group. - /// - private readonly object _groupsLock = new object(); - - private bool _disposed = false; - - public SyncplayManager( - ILogger logger, - IUserManager userManager, - ISessionManager sessionManager, - ILibraryManager libraryManager) - { - _logger = logger; - _userManager = userManager; - _sessionManager = sessionManager; - _libraryManager = libraryManager; - - _sessionManager.SessionEnded += OnSessionManagerSessionEnded; - _sessionManager.PlaybackStopped += OnSessionManagerPlaybackStopped; - } - - /// - /// Gets all groups. - /// - /// All groups. - public IEnumerable Groups => _groups.Values; - - /// - public void Dispose() - { - Dispose(true); - GC.SuppressFinalize(this); - } - - /// - /// Releases unmanaged and optionally managed resources. - /// - /// true to release both managed and unmanaged resources; false to release only unmanaged resources. - protected virtual void Dispose(bool disposing) - { - if (_disposed) - { - return; - } - - _sessionManager.SessionEnded -= OnSessionManagerSessionEnded; - _sessionManager.PlaybackStopped -= OnSessionManagerPlaybackStopped; - - _disposed = true; - } - - private void CheckDisposed() - { - if (_disposed) - { - throw new ObjectDisposedException(GetType().Name); - } - } - - private void OnSessionManagerSessionEnded(object sender, SessionEventArgs e) - { - var session = e.SessionInfo; - if (!IsSessionInGroup(session)) return; - LeaveGroup(session, CancellationToken.None); - } - - private void OnSessionManagerPlaybackStopped(object sender, PlaybackStopEventArgs e) - { - var session = e.Session; - if (!IsSessionInGroup(session)) return; - LeaveGroup(session, CancellationToken.None); - } - - private bool IsSessionInGroup(SessionInfo session) - { - return _sessionToGroupMap.ContainsKey(session.Id); - } - - private bool HasAccessToItem(User user, Guid itemId) - { - var item = _libraryManager.GetItemById(itemId); - - // Check ParentalRating access - var hasParentalRatingAccess = true; - if (user.Policy.MaxParentalRating.HasValue) - { - hasParentalRatingAccess = item.InheritedParentalRatingValue <= user.Policy.MaxParentalRating; - } - - if (!user.Policy.EnableAllFolders && hasParentalRatingAccess) - { - var collections = _libraryManager.GetCollectionFolders(item).Select( - folder => folder.Id.ToString("N", CultureInfo.InvariantCulture) - ); - var intersect = collections.Intersect(user.Policy.EnabledFolders); - return intersect.Any(); - } - else - { - return hasParentalRatingAccess; - } - } - - private Guid? GetSessionGroup(SessionInfo session) - { - ISyncplayController group; - _sessionToGroupMap.TryGetValue(session.Id, out group); - if (group != null) - { - return group.GetGroupId(); - } - else - { - return null; - } - } - - /// - public void NewGroup(SessionInfo session, CancellationToken cancellationToken) - { - var user = _userManager.GetUserById(session.UserId); - - if (user.Policy.SyncplayAccess != SyncplayAccess.CreateAndJoinGroups) - { - _logger.LogWarning("NewGroup: {0} does not have permission to create groups.", session.Id); - - var error = new GroupUpdate() - { - Type = GroupUpdateType.CreateGroupDenied - }; - _sessionManager.SendSyncplayGroupUpdate(session.Id.ToString(), error, CancellationToken.None); - return; - } - - lock (_groupsLock) - { - if (IsSessionInGroup(session)) - { - LeaveGroup(session, cancellationToken); - } - - var group = new SyncplayController(_sessionManager, this); - _groups[group.GetGroupId().ToString()] = group; - - group.InitGroup(session, cancellationToken); - } - } - - /// - public void JoinGroup(SessionInfo session, string groupId, JoinGroupRequest request, CancellationToken cancellationToken) - { - var user = _userManager.GetUserById(session.UserId); - - if (user.Policy.SyncplayAccess == SyncplayAccess.None) - { - _logger.LogWarning("JoinGroup: {0} does not have access to Syncplay.", session.Id); - - var error = new GroupUpdate() - { - Type = GroupUpdateType.JoinGroupDenied - }; - _sessionManager.SendSyncplayGroupUpdate(session.Id.ToString(), error, CancellationToken.None); - return; - } - - lock (_groupsLock) - { - ISyncplayController group; - _groups.TryGetValue(groupId, out group); - - if (group == null) - { - _logger.LogWarning("JoinGroup: {0} tried to join group {0} that does not exist.", session.Id, groupId); - - var error = new GroupUpdate() - { - Type = GroupUpdateType.GroupDoesNotExist - }; - _sessionManager.SendSyncplayGroupUpdate(session.Id.ToString(), error, CancellationToken.None); - return; - } - - if (!HasAccessToItem(user, group.GetPlayingItemId())) - { - _logger.LogWarning("JoinGroup: {0} does not have access to {1}.", session.Id, group.GetPlayingItemId()); - - var error = new GroupUpdate() - { - GroupId = group.GetGroupId().ToString(), - Type = GroupUpdateType.LibraryAccessDenied - }; - _sessionManager.SendSyncplayGroupUpdate(session.Id.ToString(), error, CancellationToken.None); - return; - } - - if (IsSessionInGroup(session)) - { - if (GetSessionGroup(session).Equals(groupId)) return; - LeaveGroup(session, cancellationToken); - } - - group.SessionJoin(session, request, cancellationToken); - } - } - - /// - public void LeaveGroup(SessionInfo session, CancellationToken cancellationToken) - { - // TODO: determine what happens to users that are in a group and get their permissions revoked - lock (_groupsLock) - { - ISyncplayController group; - _sessionToGroupMap.TryGetValue(session.Id, out group); - - if (group == null) - { - _logger.LogWarning("LeaveGroup: {0} does not belong to any group.", session.Id); - - var error = new GroupUpdate() - { - Type = GroupUpdateType.NotInGroup - }; - _sessionManager.SendSyncplayGroupUpdate(session.Id.ToString(), error, CancellationToken.None); - return; - } - - group.SessionLeave(session, cancellationToken); - - if (group.IsGroupEmpty()) - { - _logger.LogInformation("LeaveGroup: removing empty group {0}.", group.GetGroupId()); - _groups.Remove(group.GetGroupId().ToString(), out _); - } - } - } - - /// - public List ListGroups(SessionInfo session, Guid filterItemId) - { - var user = _userManager.GetUserById(session.UserId); - - if (user.Policy.SyncplayAccess == SyncplayAccess.None) - { - return new List(); - } - - // Filter by item if requested - if (!filterItemId.Equals(Guid.Empty)) - { - return _groups.Values.Where( - group => group.GetPlayingItemId().Equals(filterItemId) && HasAccessToItem(user, group.GetPlayingItemId()) - ).Select( - group => group.GetInfo() - ).ToList(); - } - // Otherwise show all available groups - else - { - return _groups.Values.Where( - group => HasAccessToItem(user, group.GetPlayingItemId()) - ).Select( - group => group.GetInfo() - ).ToList(); - } - } - - /// - public void HandleRequest(SessionInfo session, PlaybackRequest request, CancellationToken cancellationToken) - { - var user = _userManager.GetUserById(session.UserId); - - if (user.Policy.SyncplayAccess == SyncplayAccess.None) - { - _logger.LogWarning("HandleRequest: {0} does not have access to Syncplay.", session.Id); - - var error = new GroupUpdate() - { - Type = GroupUpdateType.JoinGroupDenied - }; - _sessionManager.SendSyncplayGroupUpdate(session.Id.ToString(), error, CancellationToken.None); - return; - } - - lock (_groupsLock) - { - ISyncplayController group; - _sessionToGroupMap.TryGetValue(session.Id, out group); - - if (group == null) - { - _logger.LogWarning("HandleRequest: {0} does not belong to any group.", session.Id); - - var error = new GroupUpdate() - { - Type = GroupUpdateType.NotInGroup - }; - _sessionManager.SendSyncplayGroupUpdate(session.Id.ToString(), error, CancellationToken.None); - return; - } - - group.HandleRequest(session, request, cancellationToken); - } - } - - /// - public void AddSessionToGroup(SessionInfo session, ISyncplayController group) - { - if (IsSessionInGroup(session)) - { - throw new InvalidOperationException("Session in other group already!"); - } - _sessionToGroupMap[session.Id] = group; - } - - /// - public void RemoveSessionFromGroup(SessionInfo session, ISyncplayController group) - { - if (!IsSessionInGroup(session)) - { - throw new InvalidOperationException("Session not in any group!"); - } - - ISyncplayController tempGroup; - _sessionToGroupMap.Remove(session.Id, out tempGroup); - - if (!tempGroup.GetGroupId().Equals(group.GetGroupId())) - { - throw new InvalidOperationException("Session was in wrong group!"); - } - } - } -} -- cgit v1.2.3