Pushing missing changes

MediaBrowser.Common/ScheduledTasks/Tasks/SystemUpdateTask.cs

@@ -0,0 +1,108 @@
+using MediaBrowser.Common.Kernel;
+using MediaBrowser.Common.Logging;
+using MediaBrowser.Common.Updates;
+using MediaBrowser.Model.Tasks;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.Deployment.Application;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.Common.ScheduledTasks.Tasks
+{
+    /// <summary>
+    /// Plugin Update Task
+    /// </summary>
+    [Export(typeof(IScheduledTask))]
+    public class SystemUpdateTask : BaseScheduledTask<IKernel>
+    {
+        /// <summary>
+        /// Creates the triggers that define when the task will run
+        /// </summary>
+        /// <returns>IEnumerable{BaseTaskTrigger}.</returns>
+        protected override IEnumerable<BaseTaskTrigger> GetDefaultTriggers()
+        {
+            return new BaseTaskTrigger[] { 
+            
+                // 1am
+                new DailyTrigger { TimeOfDay = TimeSpan.FromHours(1) },
+
+                new IntervalTrigger { Interval = TimeSpan.FromHours(2)}
+            };
+        }
+
+        /// <summary>
+        /// Returns the task to be executed
+        /// </summary>
+        /// <param name="cancellationToken">The cancellation token.</param>
+        /// <param name="progress">The progress.</param>
+        /// <returns>Task.</returns>
+        protected override async Task ExecuteInternal(CancellationToken cancellationToken, IProgress<TaskProgress> progress)
+        {
+            if (!ApplicationDeployment.IsNetworkDeployed) return;
+
+            EventHandler<TaskProgress> innerProgressHandler = (sender, e) => progress.Report(new TaskProgress { PercentComplete = e.PercentComplete * .1 });
+
+            // Create a progress object for the update check
+            var innerProgress = new Progress<TaskProgress>();
+            innerProgress.ProgressChanged += innerProgressHandler;
+
+            var updateInfo = await new ApplicationUpdateCheck().CheckForApplicationUpdate(cancellationToken, innerProgress).ConfigureAwait(false);
+
+            // Release the event handler
+            innerProgress.ProgressChanged -= innerProgressHandler;
+
+            progress.Report(new TaskProgress { PercentComplete = 10 });
+
+            if (!updateInfo.UpdateAvailable)
+            {
+                progress.Report(new TaskProgress { PercentComplete = 100 });
+                return;
+            }
+
+            cancellationToken.ThrowIfCancellationRequested();
+
+            if (Kernel.Configuration.EnableAutoUpdate)
+            {
+                Logger.Info("Update Revision {0} available.  Updating...", updateInfo.AvailableVersion);
+
+                innerProgressHandler = (sender, e) => progress.Report(new TaskProgress { PercentComplete = (e.PercentComplete * .9) + .1 });
+
+                innerProgress = new Progress<TaskProgress>();
+                innerProgress.ProgressChanged += innerProgressHandler;
+
+                await new ApplicationUpdater().UpdateApplication(cancellationToken, innerProgress).ConfigureAwait(false);
+
+                // Release the event handler
+                innerProgress.ProgressChanged -= innerProgressHandler;
+                
+                Kernel.OnApplicationUpdated(updateInfo.AvailableVersion);
+            }
+            else
+            {
+                Logger.Info("A new version of Media Browser is available.");
+            }
+
+            progress.Report(new TaskProgress { PercentComplete = 100 });
+        }
+
+        /// <summary>
+        /// Gets the name of the task
+        /// </summary>
+        /// <value>The name.</value>
+        public override string Name
+        {
+            get { return "Check for application updates"; }
+        }
+
+        /// <summary>
+        /// Gets the description.
+        /// </summary>
+        /// <value>The description.</value>
+        public override string Description
+        {
+            get { return "Downloads and installs application updates."; }
+        }
+    }
+}