406 lines
15 KiB
C#
406 lines
15 KiB
C#
using MediaBrowser.Common.Events;
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using MediaBrowser.Common.Net;
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using MediaBrowser.Controller.Configuration;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Entities.Audio;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Controller.Persistence;
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using MediaBrowser.Controller.Session;
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using MediaBrowser.Model.Logging;
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using System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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namespace MediaBrowser.Server.Implementations.Session
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{
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/// <summary>
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/// Class SessionManager
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/// </summary>
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public class SessionManager : ISessionManager
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{
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/// <summary>
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/// The _user data repository
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/// </summary>
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private readonly IUserDataRepository _userDataRepository;
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/// <summary>
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/// The _user repository
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/// </summary>
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private readonly IUserRepository _userRepository;
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/// <summary>
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/// The _logger
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/// </summary>
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private readonly ILogger _logger;
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/// <summary>
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/// Gets or sets the configuration manager.
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/// </summary>
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/// <value>The configuration manager.</value>
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private readonly IServerConfigurationManager _configurationManager;
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/// <summary>
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/// The _active connections
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/// </summary>
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private readonly ConcurrentDictionary<string, SessionInfo> _activeConnections =
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new ConcurrentDictionary<string, SessionInfo>(StringComparer.OrdinalIgnoreCase);
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/// <summary>
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/// Occurs when [playback start].
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/// </summary>
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public event EventHandler<PlaybackProgressEventArgs> PlaybackStart;
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/// <summary>
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/// Occurs when [playback progress].
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/// </summary>
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public event EventHandler<PlaybackProgressEventArgs> PlaybackProgress;
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/// <summary>
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/// Occurs when [playback stopped].
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/// </summary>
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public event EventHandler<PlaybackProgressEventArgs> PlaybackStopped;
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/// <summary>
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/// Initializes a new instance of the <see cref="SessionManager"/> class.
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/// </summary>
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/// <param name="userDataRepository">The user data repository.</param>
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/// <param name="configurationManager">The configuration manager.</param>
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/// <param name="logger">The logger.</param>
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/// <param name="userRepository">The user repository.</param>
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public SessionManager(IUserDataRepository userDataRepository, IServerConfigurationManager configurationManager, ILogger logger, IUserRepository userRepository)
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{
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_userDataRepository = userDataRepository;
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_configurationManager = configurationManager;
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_logger = logger;
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_userRepository = userRepository;
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}
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/// <summary>
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/// Gets all connections.
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/// </summary>
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/// <value>All connections.</value>
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public IEnumerable<SessionInfo> Sessions
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{
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get { return _activeConnections.Values.OrderByDescending(c => c.LastActivityDate).ToList(); }
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}
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/// <summary>
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/// Logs the user activity.
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/// </summary>
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/// <param name="clientType">Type of the client.</param>
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/// <param name="appVersion">The app version.</param>
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/// <param name="deviceId">The device id.</param>
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/// <param name="deviceName">Name of the device.</param>
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/// <param name="user">The user.</param>
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/// <returns>Task.</returns>
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/// <exception cref="System.UnauthorizedAccessException"></exception>
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/// <exception cref="System.ArgumentNullException">user</exception>
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public async Task<SessionInfo> LogConnectionActivity(string clientType, string appVersion, string deviceId, string deviceName, User user)
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{
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if (string.IsNullOrEmpty(clientType))
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{
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throw new ArgumentNullException("clientType");
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}
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if (string.IsNullOrEmpty(appVersion))
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{
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throw new ArgumentNullException("appVersion");
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}
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if (string.IsNullOrEmpty(deviceId))
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{
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throw new ArgumentNullException("deviceId");
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}
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if (string.IsNullOrEmpty(deviceName))
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{
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throw new ArgumentNullException("deviceName");
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}
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if (user != null && user.Configuration.IsDisabled)
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{
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throw new UnauthorizedAccessException(string.Format("The {0} account is currently disabled. Please consult with your administrator.", user.Name));
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}
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var activityDate = DateTime.UtcNow;
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var session = GetSessionInfo(clientType, appVersion, deviceId, deviceName, user);
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session.LastActivityDate = activityDate;
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if (user == null)
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{
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return session;
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}
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var lastActivityDate = user.LastActivityDate;
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user.LastActivityDate = activityDate;
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// Don't log in the db anymore frequently than 10 seconds
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if (lastActivityDate.HasValue && (activityDate - lastActivityDate.Value).TotalSeconds < 10)
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{
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return session;
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}
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// Save this directly. No need to fire off all the events for this.
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await _userRepository.SaveUser(user, CancellationToken.None).ConfigureAwait(false);
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return session;
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}
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/// <summary>
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/// Updates the now playing item id.
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/// </summary>
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/// <param name="session">The session.</param>
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/// <param name="item">The item.</param>
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/// <param name="isPaused">if set to <c>true</c> [is paused].</param>
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/// <param name="currentPositionTicks">The current position ticks.</param>
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private void UpdateNowPlayingItem(SessionInfo session, BaseItem item, bool isPaused, bool isMuted, long? currentPositionTicks = null)
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{
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session.IsMuted = isMuted;
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session.IsPaused = isPaused;
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session.NowPlayingPositionTicks = currentPositionTicks;
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session.NowPlayingItem = item;
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session.LastActivityDate = DateTime.UtcNow;
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}
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/// <summary>
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/// Removes the now playing item id.
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/// </summary>
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/// <param name="session">The session.</param>
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/// <param name="item">The item.</param>
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private void RemoveNowPlayingItem(SessionInfo session, BaseItem item)
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{
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if (session.NowPlayingItem != null && session.NowPlayingItem.Id == item.Id)
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{
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session.NowPlayingItem = null;
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session.NowPlayingPositionTicks = null;
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session.IsPaused = false;
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}
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}
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/// <summary>
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/// Gets the connection.
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/// </summary>
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/// <param name="clientType">Type of the client.</param>
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/// <param name="appVersion">The app version.</param>
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/// <param name="deviceId">The device id.</param>
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/// <param name="deviceName">Name of the device.</param>
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/// <param name="user">The user.</param>
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/// <returns>SessionInfo.</returns>
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private SessionInfo GetSessionInfo(string clientType, string appVersion, string deviceId, string deviceName, User user)
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{
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var key = clientType + deviceId + appVersion;
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var connection = _activeConnections.GetOrAdd(key, keyName => new SessionInfo
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{
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Client = clientType,
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DeviceId = deviceId,
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ApplicationVersion = appVersion,
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Id = Guid.NewGuid()
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});
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connection.DeviceName = deviceName;
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connection.User = user;
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return connection;
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}
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/// <summary>
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/// Used to report that playback has started for an item
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/// </summary>
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/// <param name="item">The item.</param>
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/// <param name="sessionId">The session id.</param>
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/// <returns>Task.</returns>
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/// <exception cref="System.ArgumentNullException"></exception>
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public async Task OnPlaybackStart(BaseItem item, Guid sessionId)
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{
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if (item == null)
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{
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throw new ArgumentNullException();
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}
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var session = Sessions.First(i => i.Id.Equals(sessionId));
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UpdateNowPlayingItem(session, item, false, false);
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var key = item.GetUserDataKey();
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var user = session.User;
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var data = _userDataRepository.GetUserData(user.Id, key);
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data.PlayCount++;
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data.LastPlayedDate = DateTime.UtcNow;
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if (!(item is Video))
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{
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data.Played = true;
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}
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await _userDataRepository.SaveUserData(user.Id, key, data, CancellationToken.None).ConfigureAwait(false);
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// Nothing to save here
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// Fire events to inform plugins
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EventHelper.QueueEventIfNotNull(PlaybackStart, this, new PlaybackProgressEventArgs
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{
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Item = item,
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User = user
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}, _logger);
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}
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/// <summary>
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/// Used to report playback progress for an item
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/// </summary>
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/// <param name="item">The item.</param>
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/// <param name="positionTicks">The position ticks.</param>
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/// <param name="isPaused">if set to <c>true</c> [is paused].</param>
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/// <param name="sessionId">The session id.</param>
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/// <returns>Task.</returns>
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/// <exception cref="System.ArgumentNullException"></exception>
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/// <exception cref="System.ArgumentOutOfRangeException">positionTicks</exception>
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public async Task OnPlaybackProgress(BaseItem item, long? positionTicks, bool isPaused, bool isMuted, Guid sessionId)
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{
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if (item == null)
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{
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throw new ArgumentNullException();
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}
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if (positionTicks.HasValue && positionTicks.Value < 0)
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{
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throw new ArgumentOutOfRangeException("positionTicks");
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}
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var session = Sessions.First(i => i.Id.Equals(sessionId));
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UpdateNowPlayingItem(session, item, isPaused, isMuted, positionTicks);
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var key = item.GetUserDataKey();
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var user = session.User;
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if (positionTicks.HasValue)
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{
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var data = _userDataRepository.GetUserData(user.Id, key);
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UpdatePlayState(item, data, positionTicks.Value);
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await _userDataRepository.SaveUserData(user.Id, key, data, CancellationToken.None).ConfigureAwait(false);
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}
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EventHelper.QueueEventIfNotNull(PlaybackProgress, this, new PlaybackProgressEventArgs
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{
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Item = item,
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User = user,
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PlaybackPositionTicks = positionTicks
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}, _logger);
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}
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/// <summary>
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/// Used to report that playback has ended for an item
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/// </summary>
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/// <param name="item">The item.</param>
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/// <param name="positionTicks">The position ticks.</param>
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/// <param name="sessionId">The session id.</param>
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/// <returns>Task.</returns>
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/// <exception cref="System.ArgumentNullException"></exception>
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public async Task OnPlaybackStopped(BaseItem item, long? positionTicks, Guid sessionId)
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{
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if (item == null)
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{
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throw new ArgumentNullException();
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}
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if (positionTicks.HasValue && positionTicks.Value < 0)
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{
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throw new ArgumentOutOfRangeException("positionTicks");
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}
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var session = Sessions.First(i => i.Id.Equals(sessionId));
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RemoveNowPlayingItem(session, item);
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var key = item.GetUserDataKey();
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var user = session.User;
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var data = _userDataRepository.GetUserData(user.Id, key);
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if (positionTicks.HasValue)
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{
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UpdatePlayState(item, data, positionTicks.Value);
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}
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else
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{
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// If the client isn't able to report this, then we'll just have to make an assumption
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data.PlayCount++;
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data.Played = true;
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data.PlaybackPositionTicks = 0;
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}
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await _userDataRepository.SaveUserData(user.Id, key, data, CancellationToken.None).ConfigureAwait(false);
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EventHelper.QueueEventIfNotNull(PlaybackStopped, this, new PlaybackProgressEventArgs
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{
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Item = item,
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User = user,
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PlaybackPositionTicks = positionTicks
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}, _logger);
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}
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/// <summary>
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/// Updates playstate position for an item but does not save
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/// </summary>
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/// <param name="item">The item</param>
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/// <param name="data">User data for the item</param>
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/// <param name="positionTicks">The current playback position</param>
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private void UpdatePlayState(BaseItem item, UserItemData data, long positionTicks)
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{
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var hasRuntime = item.RunTimeTicks.HasValue && item.RunTimeTicks > 0;
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// If a position has been reported, and if we know the duration
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if (positionTicks > 0 && hasRuntime)
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{
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var pctIn = Decimal.Divide(positionTicks, item.RunTimeTicks.Value) * 100;
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// Don't track in very beginning
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if (pctIn < _configurationManager.Configuration.MinResumePct)
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{
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positionTicks = 0;
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}
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// If we're at the end, assume completed
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else if (pctIn > _configurationManager.Configuration.MaxResumePct || positionTicks >= item.RunTimeTicks.Value)
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{
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positionTicks = 0;
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data.Played = true;
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}
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else
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{
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// Enforce MinResumeDuration
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var durationSeconds = TimeSpan.FromTicks(item.RunTimeTicks.Value).TotalSeconds;
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if (durationSeconds < _configurationManager.Configuration.MinResumeDurationSeconds)
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{
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positionTicks = 0;
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data.Played = true;
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}
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}
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}
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else if (!hasRuntime)
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{
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// If we don't know the runtime we'll just have to assume it was fully played
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data.Played = true;
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positionTicks = 0;
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}
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if (item is Audio)
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{
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positionTicks = 0;
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}
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data.PlaybackPositionTicks = positionTicks;
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}
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}
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}
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