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using System;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
using MediaBrowser.Common.Plugins;
using MediaBrowser.Common.Updates;
using MediaBrowser.Controller;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Plugins;
using MediaBrowser.Controller.Session;
using MediaBrowser.Model.Events;
using MediaBrowser.Model.Tasks;
namespace Emby.Server.Implementations.EntryPoints
{
/// <summary>
/// Class WebSocketEvents
/// </summary>
public class ServerEventNotifier : IServerEntryPoint
{
/// <summary>
/// The _user manager
/// </summary>
private readonly IUserManager _userManager;
/// <summary>
/// The _installation manager
/// </summary>
private readonly IInstallationManager _installationManager;
/// <summary>
/// The _kernel
/// </summary>
private readonly IServerApplicationHost _appHost;
/// <summary>
/// The _task manager
/// </summary>
private readonly ITaskManager _taskManager;
private readonly ISessionManager _sessionManager;
public ServerEventNotifier(IServerApplicationHost appHost, IUserManager userManager, IInstallationManager installationManager, ITaskManager taskManager, ISessionManager sessionManager)
{
_userManager = userManager;
_installationManager = installationManager;
_appHost = appHost;
_taskManager = taskManager;
_sessionManager = sessionManager;
}
public Task RunAsync()
{
_userManager.UserDeleted += userManager_UserDeleted;
_userManager.UserUpdated += userManager_UserUpdated;
_userManager.UserPolicyUpdated += _userManager_UserPolicyUpdated;
_userManager.UserConfigurationUpdated += _userManager_UserConfigurationUpdated;
_appHost.HasPendingRestartChanged += kernel_HasPendingRestartChanged;
_installationManager.PluginUninstalled += InstallationManager_PluginUninstalled;
_installationManager.PackageInstalling += _installationManager_PackageInstalling;
_installationManager.PackageInstallationCancelled += _installationManager_PackageInstallationCancelled;
_installationManager.PackageInstallationCompleted += _installationManager_PackageInstallationCompleted;
_installationManager.PackageInstallationFailed += _installationManager_PackageInstallationFailed;
_taskManager.TaskCompleted += _taskManager_TaskCompleted;
return Task.CompletedTask;
}
void _installationManager_PackageInstalling(object sender, InstallationEventArgs e)
{
SendMessageToAdminSessions("PackageInstalling", e.InstallationInfo);
}
void _installationManager_PackageInstallationCancelled(object sender, InstallationEventArgs e)
{
SendMessageToAdminSessions("PackageInstallationCancelled", e.InstallationInfo);
}
void _installationManager_PackageInstallationCompleted(object sender, InstallationEventArgs e)
{
SendMessageToAdminSessions("PackageInstallationCompleted", e.InstallationInfo);
}
void _installationManager_PackageInstallationFailed(object sender, InstallationFailedEventArgs e)
{
SendMessageToAdminSessions("PackageInstallationFailed", e.InstallationInfo);
}
void _taskManager_TaskCompleted(object sender, TaskCompletionEventArgs e)
{
SendMessageToAdminSessions("ScheduledTaskEnded", e.Result);
}
/// <summary>
/// Installations the manager_ plugin uninstalled.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The e.</param>
void InstallationManager_PluginUninstalled(object sender, GenericEventArgs<IPlugin> e)
{
SendMessageToAdminSessions("PluginUninstalled", e.Argument.GetPluginInfo());
}
/// <summary>
/// Handles the HasPendingRestartChanged event of the kernel control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="EventArgs" /> instance containing the event data.</param>
void kernel_HasPendingRestartChanged(object sender, EventArgs e)
{
_sessionManager.SendRestartRequiredNotification(CancellationToken.None);
}
/// <summary>
/// Users the manager_ user updated.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The e.</param>
void userManager_UserUpdated(object sender, GenericEventArgs<User> e)
{
var dto = _userManager.GetUserDto(e.Argument);
SendMessageToUserSession(e.Argument, "UserUpdated", dto);
}
/// <summary>
/// Users the manager_ user deleted.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The e.</param>
void userManager_UserDeleted(object sender, GenericEventArgs<User> e)
{
SendMessageToUserSession(e.Argument, "UserDeleted", e.Argument.Id.ToString("N"));
}
void _userManager_UserPolicyUpdated(object sender, GenericEventArgs<User> e)
{
var dto = _userManager.GetUserDto(e.Argument);
SendMessageToUserSession(e.Argument, "UserPolicyUpdated", dto);
}
void _userManager_UserConfigurationUpdated(object sender, GenericEventArgs<User> e)
{
var dto = _userManager.GetUserDto(e.Argument);
SendMessageToUserSession(e.Argument, "UserConfigurationUpdated", dto);
}
private async void SendMessageToAdminSessions<T>(string name, T data)
{
try
{
await _sessionManager.SendMessageToAdminSessions(name, data, CancellationToken.None);
}
catch (Exception)
{
}
}
private async void SendMessageToUserSession<T>(User user, string name, T data)
{
try
{
await _sessionManager.SendMessageToUserSessions(new List<Guid> { user.Id }, name, data, CancellationToken.None);
}
catch (Exception)
{
}
}
/// <summary>
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
/// </summary>
public void Dispose()
{
Dispose(true);
}
/// <summary>
/// Releases unmanaged and - optionally - managed resources.
/// </summary>
/// <param name="dispose"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
protected virtual void Dispose(bool dispose)
{
if (dispose)
{
_userManager.UserDeleted -= userManager_UserDeleted;
_userManager.UserUpdated -= userManager_UserUpdated;
_userManager.UserPolicyUpdated -= _userManager_UserPolicyUpdated;
_userManager.UserConfigurationUpdated -= _userManager_UserConfigurationUpdated;
_installationManager.PluginUninstalled -= InstallationManager_PluginUninstalled;
_installationManager.PackageInstalling -= _installationManager_PackageInstalling;
_installationManager.PackageInstallationCancelled -= _installationManager_PackageInstallationCancelled;
_installationManager.PackageInstallationCompleted -= _installationManager_PackageInstallationCompleted;
_installationManager.PackageInstallationFailed -= _installationManager_PackageInstallationFailed;
_appHost.HasPendingRestartChanged -= kernel_HasPendingRestartChanged;
}
}
}
}
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