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NotificationEntryPoint.cs
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NotificationEntryPoint.cs
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using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using Jellyfin.Data.Events;
using MediaBrowser.Common.Configuration;
using MediaBrowser.Controller;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Audio;
using MediaBrowser.Controller.Entities.TV;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Notifications;
using MediaBrowser.Controller.Plugins;
using MediaBrowser.Model.Activity;
using MediaBrowser.Model.Globalization;
using MediaBrowser.Model.Notifications;
using Microsoft.Extensions.Logging;
namespace Emby.Notifications
{
/// <summary>
/// Creates notifications for various system events.
/// </summary>
public class NotificationEntryPoint : IServerEntryPoint
{
private readonly ILogger<NotificationEntryPoint> _logger;
private readonly IActivityManager _activityManager;
private readonly ILocalizationManager _localization;
private readonly INotificationManager _notificationManager;
private readonly ILibraryManager _libraryManager;
private readonly IServerApplicationHost _appHost;
private readonly IConfigurationManager _config;
private readonly object _libraryChangedSyncLock = new object();
private readonly List<BaseItem> _itemsAdded = new List<BaseItem>();
private Timer? _libraryUpdateTimer;
private string[] _coreNotificationTypes;
private bool _disposed = false;
/// <summary>
/// Initializes a new instance of the <see cref="NotificationEntryPoint" /> class.
/// </summary>
/// <param name="logger">The logger.</param>
/// <param name="activityManager">The activity manager.</param>
/// <param name="localization">The localization manager.</param>
/// <param name="notificationManager">The notification manager.</param>
/// <param name="libraryManager">The library manager.</param>
/// <param name="appHost">The application host.</param>
/// <param name="config">The configuration manager.</param>
public NotificationEntryPoint(
ILogger<NotificationEntryPoint> logger,
IActivityManager activityManager,
ILocalizationManager localization,
INotificationManager notificationManager,
ILibraryManager libraryManager,
IServerApplicationHost appHost,
IConfigurationManager config)
{
_logger = logger;
_activityManager = activityManager;
_localization = localization;
_notificationManager = notificationManager;
_libraryManager = libraryManager;
_appHost = appHost;
_config = config;
_coreNotificationTypes = new CoreNotificationTypes(localization).GetNotificationTypes().Select(i => i.Type).ToArray();
}
/// <inheritdoc />
public Task RunAsync()
{
_libraryManager.ItemAdded += OnLibraryManagerItemAdded;
_appHost.HasPendingRestartChanged += OnAppHostHasPendingRestartChanged;
_appHost.HasUpdateAvailableChanged += OnAppHostHasUpdateAvailableChanged;
_activityManager.EntryCreated += OnActivityManagerEntryCreated;
return Task.CompletedTask;
}
private async void OnAppHostHasPendingRestartChanged(object? sender, EventArgs e)
{
var type = NotificationType.ServerRestartRequired.ToString();
var notification = new NotificationRequest
{
NotificationType = type,
Name = string.Format(
CultureInfo.InvariantCulture,
_localization.GetLocalizedString("ServerNameNeedsToBeRestarted"),
_appHost.Name)
};
await SendNotification(notification, null).ConfigureAwait(false);
}
private async void OnActivityManagerEntryCreated(object? sender, GenericEventArgs<ActivityLogEntry> e)
{
var entry = e.Argument;
var type = entry.Type;
if (string.IsNullOrEmpty(type) || !_coreNotificationTypes.Contains(type, StringComparer.OrdinalIgnoreCase))
{
return;
}
var userId = e.Argument.UserId;
if (!userId.Equals(Guid.Empty) && !GetOptions().IsEnabledToMonitorUser(type, userId))
{
return;
}
var notification = new NotificationRequest
{
NotificationType = type,
Name = entry.Name,
Description = entry.Overview
};
await SendNotification(notification, null).ConfigureAwait(false);
}
private NotificationOptions GetOptions()
{
return _config.GetConfiguration<NotificationOptions>("notifications");
}
private async void OnAppHostHasUpdateAvailableChanged(object? sender, EventArgs e)
{
if (!_appHost.HasUpdateAvailable)
{
return;
}
var type = NotificationType.ApplicationUpdateAvailable.ToString();
var notification = new NotificationRequest
{
Description = "Please see jellyfin.org for details.",
NotificationType = type,
Name = _localization.GetLocalizedString("NewVersionIsAvailable")
};
await SendNotification(notification, null).ConfigureAwait(false);
}
private void OnLibraryManagerItemAdded(object? sender, ItemChangeEventArgs e)
{
if (!FilterItem(e.Item))
{
return;
}
lock (_libraryChangedSyncLock)
{
if (_libraryUpdateTimer == null)
{
_libraryUpdateTimer = new Timer(
LibraryUpdateTimerCallback,
null,
5000,
Timeout.Infinite);
}
else
{
_libraryUpdateTimer.Change(5000, Timeout.Infinite);
}
_itemsAdded.Add(e.Item);
}
}
private bool FilterItem(BaseItem item)
{
if (item.IsFolder)
{
return false;
}
if (!item.HasPathProtocol)
{
return false;
}
if (item is IItemByName)
{
return false;
}
return item.SourceType == SourceType.Library;
}
private async void LibraryUpdateTimerCallback(object? state)
{
List<BaseItem> items;
lock (_libraryChangedSyncLock)
{
items = _itemsAdded.ToList();
_itemsAdded.Clear();
_libraryUpdateTimer!.Dispose(); // Shouldn't be null as it just set off this callback
_libraryUpdateTimer = null;
}
if (items.Count > 10)
{
items = items.GetRange(0, 10);
}
foreach (var item in items)
{
var notification = new NotificationRequest
{
NotificationType = NotificationType.NewLibraryContent.ToString(),
Name = string.Format(
CultureInfo.InvariantCulture,
_localization.GetLocalizedString("ValueHasBeenAddedToLibrary"),
GetItemName(item)),
Description = item.Overview
};
await SendNotification(notification, item).ConfigureAwait(false);
}
}
/// <summary>
/// Creates a human readable name for the item.
/// </summary>
/// <param name="item">The item.</param>
/// <returns>A human readable name for the item.</returns>
public static string GetItemName(BaseItem item)
{
var name = item.Name;
if (item is Episode episode)
{
if (episode.IndexNumber.HasValue)
{
name = string.Format(
CultureInfo.InvariantCulture,
"Ep{0} - {1}",
episode.IndexNumber.Value,
name);
}
if (episode.ParentIndexNumber.HasValue)
{
name = string.Format(
CultureInfo.InvariantCulture,
"S{0}, {1}",
episode.ParentIndexNumber.Value,
name);
}
}
if (item is IHasSeries hasSeries)
{
name = hasSeries.SeriesName + " - " + name;
}
if (item is IHasAlbumArtist hasAlbumArtist)
{
var artists = hasAlbumArtist.AlbumArtists;
if (artists.Count > 0)
{
name = artists[0] + " - " + name;
}
}
else if (item is IHasArtist hasArtist)
{
var artists = hasArtist.Artists;
if (artists.Count > 0)
{
name = artists[0] + " - " + name;
}
}
return name;
}
private async Task SendNotification(NotificationRequest notification, BaseItem? relatedItem)
{
try
{
await _notificationManager.SendNotification(notification, relatedItem, CancellationToken.None).ConfigureAwait(false);
}
catch (Exception ex)
{
_logger.LogError(ex, "Error sending notification");
}
}
/// <inheritdoc />
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
/// <summary>
/// Releases unmanaged and optionally managed resources.
/// </summary>
/// <param name="disposing"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
protected virtual void Dispose(bool disposing)
{
if (_disposed)
{
return;
}
if (disposing)
{
_libraryUpdateTimer?.Dispose();
}
_libraryUpdateTimer = null;
_libraryManager.ItemAdded -= OnLibraryManagerItemAdded;
_appHost.HasPendingRestartChanged -= OnAppHostHasPendingRestartChanged;
_appHost.HasUpdateAvailableChanged -= OnAppHostHasUpdateAvailableChanged;
_activityManager.EntryCreated -= OnActivityManagerEntryCreated;
_disposed = true;
}
}
}