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using MediaBrowser.Common;
using MediaBrowser.Common.Configuration;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
using MediaBrowser.Common.Progress;
using MediaBrowser.Model.Tasks;
namespace Emby.Server.Implementations.ScheduledTasks
{
/// <summary>
/// Plugin Update Task
/// </summary>
public class SystemUpdateTask : IScheduledTask
{
/// <summary>
/// The _app host
/// </summary>
private readonly IApplicationHost _appHost;
/// <summary>
/// Gets or sets the configuration manager.
/// </summary>
/// <value>The configuration manager.</value>
private IConfigurationManager ConfigurationManager { get; set; }
/// <summary>
/// Gets or sets the logger.
/// </summary>
/// <value>The logger.</value>
private ILogger Logger { get; set; }
/// <summary>
/// Initializes a new instance of the <see cref="SystemUpdateTask" /> class.
/// </summary>
/// <param name="appHost">The app host.</param>
/// <param name="configurationManager">The configuration manager.</param>
/// <param name="logger">The logger.</param>
public SystemUpdateTask(IApplicationHost appHost, IConfigurationManager configurationManager, ILogger logger)
{
_appHost = appHost;
ConfigurationManager = configurationManager;
Logger = logger;
}
/// <summary>
/// Creates the triggers that define when the task will run
/// </summary>
/// <returns>IEnumerable{BaseTaskTrigger}.</returns>
public IEnumerable<TaskTriggerInfo> GetDefaultTriggers()
{
return new[] {
// At startup
new TaskTriggerInfo {Type = TaskTriggerInfo.TriggerStartup},
// Every so often
new TaskTriggerInfo { Type = TaskTriggerInfo.TriggerInterval, IntervalTicks = TimeSpan.FromHours(24).Ticks}
};
}
/// <summary>
/// Returns the task to be executed
/// </summary>
/// <param name="cancellationToken">The cancellation token.</param>
/// <param name="progress">The progress.</param>
/// <returns>Task.</returns>
public async Task Execute(CancellationToken cancellationToken, IProgress<double> progress)
{
// Create a progress object for the update check
var updateInfo = await _appHost.CheckForApplicationUpdate(cancellationToken, new SimpleProgress<double>()).ConfigureAwait(false);
if (!updateInfo.IsUpdateAvailable)
{
Logger.LogDebug("No application update available.");
return;
}
cancellationToken.ThrowIfCancellationRequested();
if (!_appHost.CanSelfUpdate) return;
if (ConfigurationManager.CommonConfiguration.EnableAutoUpdate)
{
Logger.LogInformation("Update Revision {0} available. Updating...", updateInfo.AvailableVersion);
await _appHost.UpdateApplication(updateInfo.Package, cancellationToken, progress).ConfigureAwait(false);
}
else
{
Logger.LogInformation("A new version of " + _appHost.Name + " is available.");
}
}
/// <summary>
/// Gets the name of the task
/// </summary>
/// <value>The name.</value>
public string Name
{
get { return "Check for application updates"; }
}
/// <summary>
/// Gets the description.
/// </summary>
/// <value>The description.</value>
public string Description
{
get { return "Downloads and installs application updates."; }
}
/// <summary>
/// Gets the category.
/// </summary>
/// <value>The category.</value>
public string Category
{
get { return "Application"; }
}
public string Key
{
get { return "SystemUpdateTask"; }
}
}
}
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