jellyfin-server/MediaBrowser.Server.Implementations/Session/SessionManager.cs

828 lines
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C#
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using MediaBrowser.Common.Events;
using MediaBrowser.Common.Extensions;
using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Audio;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Persistence;
using MediaBrowser.Controller.Session;
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using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Logging;
using MediaBrowser.Model.Session;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Server.Implementations.Session
{
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/// <summary>
/// Class SessionManager
/// </summary>
public class SessionManager : ISessionManager
{
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/// <summary>
/// The _user data repository
/// </summary>
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private readonly IUserDataManager _userDataRepository;
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/// <summary>
/// The _user repository
/// </summary>
private readonly IUserRepository _userRepository;
/// <summary>
/// The _logger
/// </summary>
private readonly ILogger _logger;
private readonly ILibraryManager _libraryManager;
private readonly IUserManager _userManager;
/// <summary>
/// Gets or sets the configuration manager.
/// </summary>
/// <value>The configuration manager.</value>
private readonly IServerConfigurationManager _configurationManager;
/// <summary>
/// The _active connections
/// </summary>
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private readonly ConcurrentDictionary<string, SessionInfo> _activeConnections =
new ConcurrentDictionary<string, SessionInfo>(StringComparer.OrdinalIgnoreCase);
/// <summary>
/// Occurs when [playback start].
/// </summary>
public event EventHandler<PlaybackProgressEventArgs> PlaybackStart;
/// <summary>
/// Occurs when [playback progress].
/// </summary>
public event EventHandler<PlaybackProgressEventArgs> PlaybackProgress;
/// <summary>
/// Occurs when [playback stopped].
/// </summary>
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public event EventHandler<PlaybackStopEventArgs> PlaybackStopped;
private IEnumerable<ISessionControllerFactory> _sessionFactories = new List<ISessionControllerFactory>();
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/// <summary>
/// Initializes a new instance of the <see cref="SessionManager" /> class.
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/// </summary>
/// <param name="userDataRepository">The user data repository.</param>
/// <param name="configurationManager">The configuration manager.</param>
/// <param name="logger">The logger.</param>
/// <param name="userRepository">The user repository.</param>
/// <param name="libraryManager">The library manager.</param>
public SessionManager(IUserDataManager userDataRepository, IServerConfigurationManager configurationManager, ILogger logger, IUserRepository userRepository, ILibraryManager libraryManager, IUserManager userManager)
{
_userDataRepository = userDataRepository;
_configurationManager = configurationManager;
_logger = logger;
_userRepository = userRepository;
_libraryManager = libraryManager;
_userManager = userManager;
}
/// <summary>
/// Adds the parts.
/// </summary>
/// <param name="sessionFactories">The session factories.</param>
public void AddParts(IEnumerable<ISessionControllerFactory> sessionFactories)
{
_sessionFactories = sessionFactories.ToList();
}
/// <summary>
/// Gets all connections.
/// </summary>
/// <value>All connections.</value>
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public IEnumerable<SessionInfo> Sessions
{
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get { return _activeConnections.Values.OrderByDescending(c => c.LastActivityDate).ToList(); }
}
/// <summary>
/// Logs the user activity.
/// </summary>
/// <param name="clientType">Type of the client.</param>
/// <param name="appVersion">The app version.</param>
/// <param name="deviceId">The device id.</param>
/// <param name="deviceName">Name of the device.</param>
/// <param name="remoteEndPoint">The remote end point.</param>
/// <param name="user">The user.</param>
/// <returns>Task.</returns>
/// <exception cref="System.ArgumentNullException">user</exception>
/// <exception cref="System.UnauthorizedAccessException"></exception>
public async Task<SessionInfo> LogSessionActivity(string clientType, string appVersion, string deviceId, string deviceName, string remoteEndPoint, User user)
{
if (string.IsNullOrEmpty(clientType))
{
throw new ArgumentNullException("clientType");
}
if (string.IsNullOrEmpty(appVersion))
{
throw new ArgumentNullException("appVersion");
}
if (string.IsNullOrEmpty(deviceId))
{
throw new ArgumentNullException("deviceId");
}
if (string.IsNullOrEmpty(deviceName))
{
throw new ArgumentNullException("deviceName");
}
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if (user != null && user.Configuration.IsDisabled)
{
throw new UnauthorizedAccessException(string.Format("The {0} account is currently disabled. Please consult with your administrator.", user.Name));
}
var activityDate = DateTime.UtcNow;
var userId = user == null ? (Guid?)null : user.Id;
var username = user == null ? null : user.Name;
var session = GetSessionInfo(clientType, appVersion, deviceId, deviceName, remoteEndPoint, userId, username);
session.LastActivityDate = activityDate;
if (user == null)
{
return session;
}
var lastActivityDate = user.LastActivityDate;
user.LastActivityDate = activityDate;
// Don't log in the db anymore frequently than 10 seconds
if (lastActivityDate.HasValue && (activityDate - lastActivityDate.Value).TotalSeconds < 10)
{
return session;
}
// Save this directly. No need to fire off all the events for this.
await _userRepository.SaveUser(user, CancellationToken.None).ConfigureAwait(false);
return session;
}
/// <summary>
/// Updates the now playing item id.
/// </summary>
/// <param name="session">The session.</param>
/// <param name="item">The item.</param>
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/// <param name="isPaused">if set to <c>true</c> [is paused].</param>
/// <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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session.IsMuted = isMuted;
session.IsPaused = isPaused;
session.NowPlayingPositionTicks = currentPositionTicks;
session.NowPlayingItem = item;
session.LastActivityDate = DateTime.UtcNow;
}
/// <summary>
/// Removes the now playing item id.
/// </summary>
/// <param name="session">The session.</param>
/// <param name="item">The item.</param>
private void RemoveNowPlayingItem(SessionInfo session, BaseItem item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
if (session.NowPlayingItem != null && session.NowPlayingItem.Id == item.Id)
{
session.NowPlayingItem = null;
session.NowPlayingPositionTicks = null;
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session.IsPaused = false;
}
}
/// <summary>
/// Gets the connection.
/// </summary>
/// <param name="clientType">Type of the client.</param>
/// <param name="appVersion">The app version.</param>
/// <param name="deviceId">The device id.</param>
/// <param name="deviceName">Name of the device.</param>
/// <param name="remoteEndPoint">The remote end point.</param>
/// <param name="userId">The user identifier.</param>
/// <param name="username">The username.</param>
/// <returns>SessionInfo.</returns>
private SessionInfo GetSessionInfo(string clientType, string appVersion, string deviceId, string deviceName, string remoteEndPoint, Guid? userId, string username)
{
var key = clientType + deviceId + appVersion;
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var connection = _activeConnections.GetOrAdd(key, keyName => new SessionInfo
{
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Client = clientType,
DeviceId = deviceId,
ApplicationVersion = appVersion,
Id = Guid.NewGuid()
});
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connection.DeviceName = deviceName;
connection.UserId = userId;
connection.UserName = username;
connection.RemoteEndPoint = remoteEndPoint;
if (!userId.HasValue)
{
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connection.AdditionalUsers.Clear();
}
if (connection.SessionController == null)
{
connection.SessionController = _sessionFactories
.Select(i => i.GetSessionController(connection))
.FirstOrDefault(i => i != null);
}
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return connection;
}
private List<User> GetUsers(SessionInfo session)
{
var users = new List<User>();
if (session.UserId.HasValue)
{
var user = _userManager.GetUserById(session.UserId.Value);
if (user == null)
{
throw new InvalidOperationException("User not found");
}
users.Add(user);
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var additionalUsers = session.AdditionalUsers
.Select(i => _userManager.GetUserById(new Guid(i.UserId)))
.Where(i => i != null);
users.AddRange(additionalUsers);
}
return users;
}
/// <summary>
/// Used to report that playback has started for an item
/// </summary>
/// <param name="info">The info.</param>
/// <returns>Task.</returns>
/// <exception cref="System.ArgumentNullException">info</exception>
public async Task OnPlaybackStart(PlaybackInfo info)
{
if (info == null)
{
throw new ArgumentNullException("info");
}
if (info.SessionId == Guid.Empty)
{
throw new ArgumentNullException("info");
}
var session = Sessions.First(i => i.Id.Equals(info.SessionId));
var item = info.Item;
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UpdateNowPlayingItem(session, item, false, false);
session.CanSeek = info.CanSeek;
session.QueueableMediaTypes = info.QueueableMediaTypes;
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var key = item.GetUserDataKey();
var users = GetUsers(session);
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foreach (var user in users)
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{
await OnPlaybackStart(user.Id, key, item).ConfigureAwait(false);
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}
// Nothing to save here
// Fire events to inform plugins
EventHelper.QueueEventIfNotNull(PlaybackStart, this, new PlaybackProgressEventArgs
{
Item = item,
Users = users
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}, _logger);
}
/// <summary>
/// Called when [playback start].
/// </summary>
/// <param name="userId">The user identifier.</param>
/// <param name="userDataKey">The user data key.</param>
/// <param name="item">The item.</param>
/// <returns>Task.</returns>
private async Task OnPlaybackStart(Guid userId, string userDataKey, IHasUserData item)
{
var data = _userDataRepository.GetUserData(userId, userDataKey);
data.PlayCount++;
data.LastPlayedDate = DateTime.UtcNow;
if (!(item is Video))
{
data.Played = true;
}
await _userDataRepository.SaveUserData(userId, item, data, UserDataSaveReason.PlaybackStart, CancellationToken.None).ConfigureAwait(false);
}
/// <summary>
/// Used to report playback progress for an item
/// </summary>
/// <param name="info">The info.</param>
/// <returns>Task.</returns>
/// <exception cref="System.ArgumentNullException"></exception>
/// <exception cref="System.ArgumentOutOfRangeException">positionTicks</exception>
public async Task OnPlaybackProgress(PlaybackProgressInfo info)
{
if (info == null)
{
throw new ArgumentNullException("info");
}
if (info.PositionTicks.HasValue && info.PositionTicks.Value < 0)
{
throw new ArgumentOutOfRangeException("positionTicks");
}
var session = Sessions.First(i => i.Id.Equals(info.SessionId));
UpdateNowPlayingItem(session, info.Item, info.IsPaused, info.IsMuted, info.PositionTicks);
var key = info.Item.GetUserDataKey();
var users = GetUsers(session);
foreach (var user in users)
{
await OnPlaybackProgress(user.Id, key, info.Item, info.PositionTicks).ConfigureAwait(false);
}
EventHelper.QueueEventIfNotNull(PlaybackProgress, this, new PlaybackProgressEventArgs
{
Item = info.Item,
Users = users,
PlaybackPositionTicks = info.PositionTicks
}, _logger);
}
private async Task OnPlaybackProgress(Guid userId, string userDataKey, BaseItem item, long? positionTicks)
{
var data = _userDataRepository.GetUserData(userId, userDataKey);
if (positionTicks.HasValue)
{
UpdatePlayState(item, data, positionTicks.Value);
await _userDataRepository.SaveUserData(userId, item, data, UserDataSaveReason.PlaybackProgress, CancellationToken.None).ConfigureAwait(false);
}
}
/// <summary>
/// Used to report that playback has ended for an item
/// </summary>
/// <param name="info">The info.</param>
/// <returns>Task.</returns>
/// <exception cref="System.ArgumentNullException">info</exception>
/// <exception cref="System.ArgumentOutOfRangeException">positionTicks</exception>
public async Task OnPlaybackStopped(PlaybackStopInfo info)
{
if (info == null)
{
throw new ArgumentNullException("info");
}
if (info.Item == null)
{
throw new ArgumentException("PlaybackStopInfo.Item cannot be null");
}
if (info.SessionId == Guid.Empty)
{
throw new ArgumentException("PlaybackStopInfo.SessionId cannot be Guid.Empty");
}
if (info.PositionTicks.HasValue && info.PositionTicks.Value < 0)
{
throw new ArgumentOutOfRangeException("positionTicks");
}
var session = Sessions.First(i => i.Id.Equals(info.SessionId));
RemoveNowPlayingItem(session, info.Item);
var key = info.Item.GetUserDataKey();
var users = GetUsers(session);
var playedToCompletion = false;
foreach (var user in users)
{
playedToCompletion = await OnPlaybackStopped(user.Id, key, info.Item, info.PositionTicks).ConfigureAwait(false);
}
EventHelper.QueueEventIfNotNull(PlaybackStopped, this, new PlaybackStopEventArgs
{
Item = info.Item,
Users = users,
PlaybackPositionTicks = info.PositionTicks,
PlayedToCompletion = playedToCompletion
}, _logger);
}
private async Task<bool> OnPlaybackStopped(Guid userId, string userDataKey, BaseItem item, long? positionTicks)
{
var data = _userDataRepository.GetUserData(userId, userDataKey);
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bool playedToCompletion;
if (positionTicks.HasValue)
{
playedToCompletion = UpdatePlayState(item, data, positionTicks.Value);
}
else
{
// If the client isn't able to report this, then we'll just have to make an assumption
data.PlayCount++;
data.Played = true;
data.PlaybackPositionTicks = 0;
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playedToCompletion = true;
}
await _userDataRepository.SaveUserData(userId, item, data, UserDataSaveReason.PlaybackFinished, CancellationToken.None).ConfigureAwait(false);
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return playedToCompletion;
}
/// <summary>
/// Updates playstate position for an item but does not save
/// </summary>
/// <param name="item">The item</param>
/// <param name="data">User data for the item</param>
/// <param name="positionTicks">The current playback position</param>
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private bool UpdatePlayState(BaseItem item, UserItemData data, long positionTicks)
{
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var playedToCompletion = false;
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var hasRuntime = item.RunTimeTicks.HasValue && item.RunTimeTicks > 0;
// If a position has been reported, and if we know the duration
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if (positionTicks > 0 && hasRuntime)
{
var pctIn = Decimal.Divide(positionTicks, item.RunTimeTicks.Value) * 100;
// Don't track in very beginning
if (pctIn < _configurationManager.Configuration.MinResumePct)
{
positionTicks = 0;
}
// If we're at the end, assume completed
else if (pctIn > _configurationManager.Configuration.MaxResumePct || positionTicks >= item.RunTimeTicks.Value)
{
positionTicks = 0;
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data.Played = playedToCompletion = true;
}
else
{
// Enforce MinResumeDuration
var durationSeconds = TimeSpan.FromTicks(item.RunTimeTicks.Value).TotalSeconds;
if (durationSeconds < _configurationManager.Configuration.MinResumeDurationSeconds)
{
positionTicks = 0;
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data.Played = playedToCompletion = true;
}
}
}
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else if (!hasRuntime)
{
// If we don't know the runtime we'll just have to assume it was fully played
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data.Played = playedToCompletion = true;
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positionTicks = 0;
}
if (item is Audio)
{
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positionTicks = 0;
}
data.PlaybackPositionTicks = positionTicks;
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return playedToCompletion;
}
/// <summary>
/// Gets the session.
/// </summary>
/// <param name="sessionId">The session identifier.</param>
/// <returns>SessionInfo.</returns>
/// <exception cref="ResourceNotFoundException"></exception>
private SessionInfo GetSession(Guid sessionId)
{
var session = Sessions.First(i => i.Id.Equals(sessionId));
if (session == null)
{
throw new ResourceNotFoundException(string.Format("Session {0} not found.", sessionId));
}
return session;
}
/// <summary>
/// Gets the session for remote control.
/// </summary>
/// <param name="sessionId">The session id.</param>
/// <returns>SessionInfo.</returns>
/// <exception cref="ResourceNotFoundException"></exception>
private SessionInfo GetSessionForRemoteControl(Guid sessionId)
{
var session = GetSession(sessionId);
if (!session.SupportsRemoteControl)
{
throw new ArgumentException(string.Format("Session {0} does not support remote control.", session.Id));
}
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return session;
}
/// <summary>
/// Sends the system command.
/// </summary>
/// <param name="sessionId">The session id.</param>
/// <param name="command">The command.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
public Task SendSystemCommand(Guid sessionId, SystemCommand command, CancellationToken cancellationToken)
{
var session = GetSessionForRemoteControl(sessionId);
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return session.SessionController.SendSystemCommand(command, cancellationToken);
}
/// <summary>
/// Sends the message command.
/// </summary>
/// <param name="sessionId">The session id.</param>
/// <param name="command">The command.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
public Task SendMessageCommand(Guid sessionId, MessageCommand command, CancellationToken cancellationToken)
{
var session = GetSessionForRemoteControl(sessionId);
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return session.SessionController.SendMessageCommand(command, cancellationToken);
}
/// <summary>
/// Sends the play command.
/// </summary>
/// <param name="sessionId">The session id.</param>
/// <param name="command">The command.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
public Task SendPlayCommand(Guid sessionId, PlayRequest command, CancellationToken cancellationToken)
{
var session = GetSessionForRemoteControl(sessionId);
var items = command.ItemIds.Select(i => _libraryManager.GetItemById(new Guid(i)))
.ToList();
if (items.Any(i => i.LocationType == LocationType.Virtual))
{
throw new ArgumentException("Virtual items are not playable.");
}
if (command.PlayCommand != PlayCommand.PlayNow)
{
if (items.Any(i => !session.QueueableMediaTypes.Contains(i.MediaType, StringComparer.OrdinalIgnoreCase)))
{
throw new ArgumentException(string.Format("{0} is unable to queue the requested media type.", session.DeviceName ?? session.Id.ToString()));
}
}
else
{
if (items.Any(i => !session.PlayableMediaTypes.Contains(i.MediaType, StringComparer.OrdinalIgnoreCase)))
{
throw new ArgumentException(string.Format("{0} is unable to play the requested media type.", session.DeviceName ?? session.Id.ToString()));
}
}
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return session.SessionController.SendPlayCommand(command, cancellationToken);
}
/// <summary>
/// Sends the browse command.
/// </summary>
/// <param name="sessionId">The session id.</param>
/// <param name="command">The command.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
public Task SendBrowseCommand(Guid sessionId, BrowseRequest command, CancellationToken cancellationToken)
{
var session = GetSessionForRemoteControl(sessionId);
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return session.SessionController.SendBrowseCommand(command, cancellationToken);
}
/// <summary>
/// Sends the playstate command.
/// </summary>
/// <param name="sessionId">The session id.</param>
/// <param name="command">The command.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
public Task SendPlaystateCommand(Guid sessionId, PlaystateRequest command, CancellationToken cancellationToken)
{
var session = GetSessionForRemoteControl(sessionId);
if (command.Command == PlaystateCommand.Seek && !session.CanSeek)
{
throw new ArgumentException(string.Format("Session {0} is unable to seek.", session.Id));
}
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return session.SessionController.SendPlaystateCommand(command, cancellationToken);
}
/// <summary>
/// Sends the restart required message.
/// </summary>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
public Task SendRestartRequiredNotification(CancellationToken cancellationToken)
{
var sessions = Sessions.Where(i => i.IsActive && i.SessionController != null).ToList();
var tasks = sessions.Select(session => Task.Run(async () =>
{
try
{
await session.SessionController.SendRestartRequiredNotification(cancellationToken).ConfigureAwait(false);
}
catch (Exception ex)
{
_logger.ErrorException("Error in SendRestartRequiredNotification.", ex);
}
}, cancellationToken));
return Task.WhenAll(tasks);
}
/// <summary>
/// Sends the server shutdown notification.
/// </summary>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
public Task SendServerShutdownNotification(CancellationToken cancellationToken)
{
var sessions = Sessions.Where(i => i.IsActive && i.SessionController != null).ToList();
var tasks = sessions.Select(session => Task.Run(async () =>
{
try
{
await session.SessionController.SendServerShutdownNotification(cancellationToken).ConfigureAwait(false);
}
catch (Exception ex)
{
_logger.ErrorException("Error in SendServerShutdownNotification.", ex);
}
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}, cancellationToken));
return Task.WhenAll(tasks);
}
/// <summary>
/// Sends the server restart notification.
/// </summary>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
public Task SendServerRestartNotification(CancellationToken cancellationToken)
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{
var sessions = Sessions.Where(i => i.IsActive && i.SessionController != null).ToList();
var tasks = sessions.Select(session => Task.Run(async () =>
{
try
{
await session.SessionController.SendServerRestartNotification(cancellationToken).ConfigureAwait(false);
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}
catch (Exception ex)
{
_logger.ErrorException("Error in SendServerRestartNotification.", ex);
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}
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}, cancellationToken));
return Task.WhenAll(tasks);
}
/// <summary>
/// Adds the additional user.
/// </summary>
/// <param name="sessionId">The session identifier.</param>
/// <param name="userId">The user identifier.</param>
/// <exception cref="System.UnauthorizedAccessException">Cannot modify additional users without authenticating first.</exception>
/// <exception cref="System.ArgumentException">The requested user is already the primary user of the session.</exception>
public void AddAdditionalUser(Guid sessionId, Guid userId)
{
var session = GetSession(sessionId);
if (!session.UserId.HasValue)
{
throw new UnauthorizedAccessException("Cannot modify additional users without authenticating first.");
}
if (session.UserId.Value == userId)
{
throw new ArgumentException("The requested user is already the primary user of the session.");
}
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if (session.AdditionalUsers.All(i => new Guid(i.UserId) != userId))
{
var user = _userManager.GetUserById(userId);
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session.AdditionalUsers.Add(new SessionUserInfo
{
UserId = userId.ToString("N"),
UserName = user.Name
});
}
}
/// <summary>
/// Removes the additional user.
/// </summary>
/// <param name="sessionId">The session identifier.</param>
/// <param name="userId">The user identifier.</param>
/// <exception cref="System.UnauthorizedAccessException">Cannot modify additional users without authenticating first.</exception>
/// <exception cref="System.ArgumentException">The requested user is already the primary user of the session.</exception>
public void RemoveAdditionalUser(Guid sessionId, Guid userId)
{
var session = GetSession(sessionId);
if (!session.UserId.HasValue)
{
throw new UnauthorizedAccessException("Cannot modify additional users without authenticating first.");
}
if (session.UserId.Value == userId)
{
throw new ArgumentException("The requested user is already the primary user of the session.");
}
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var user = session.AdditionalUsers.FirstOrDefault(i => new Guid(i.UserId) == userId);
if (user != null)
{
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session.AdditionalUsers.Remove(user);
}
}
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/// <summary>
/// Authenticates the new session.
/// </summary>
/// <param name="user">The user.</param>
/// <param name="password">The password.</param>
/// <param name="clientType">Type of the client.</param>
/// <param name="appVersion">The application version.</param>
/// <param name="deviceId">The device identifier.</param>
/// <param name="deviceName">Name of the device.</param>
/// <param name="remoteEndPoint">The remote end point.</param>
/// <returns>Task{SessionInfo}.</returns>
/// <exception cref="UnauthorizedAccessException"></exception>
public async Task<SessionInfo> AuthenticateNewSession(User user, string password, string clientType, string appVersion, string deviceId, string deviceName, string remoteEndPoint)
{
var result = await _userManager.AuthenticateUser(user, password).ConfigureAwait(false);
if (!result)
{
throw new UnauthorizedAccessException("Invalid user or password entered.");
}
return await LogSessionActivity(clientType, appVersion, deviceId, deviceName, remoteEndPoint, user).ConfigureAwait(false);
}
}
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}