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/* UpdateService.cs $
This file is part of the HandBrake source code.
Homepage: <http://handbrake.fr>.
It may be used under the terms of the GNU General Public License. */
namespace HandBrake.ApplicationServices.Services
{
using System;
using System.IO;
using System.Net;
using System.Threading;
using HandBrake.ApplicationServices.Model.General;
using HandBrake.ApplicationServices.Utilities;
/// <summary>
/// The Update Service
/// </summary>
public class UpdateService
{
/*
* TODO: Refactor this to use Caliburn Invocation
*/
/// <summary>
/// Begins checking for an update to HandBrake.
/// </summary>
/// <param name="callback">
/// The method that will be called when the check is finished.
/// </param>
/// <param name="debug">
/// Whether or not to execute this in debug mode.
/// </param>
/// <param name="url">
/// The url.
/// </param>
/// <param name="currentBuild">
/// The current Build.
/// </param>
/// <param name="skipBuild">
/// The skip Build.
/// </param>
public static void BeginCheckForUpdates(AsyncCallback callback, bool debug, string url, int currentBuild, int skipBuild)
{
ThreadPool.QueueUserWorkItem(delegate
{
try
{
// Initialize variables
WebRequest request = WebRequest.Create(url);
WebResponse response = request.GetResponse();
AppcastReader reader = new AppcastReader();
// Get the data, convert it to a string, and parse it into the AppcastReader
reader.GetUpdateInfo(new StreamReader(response.GetResponseStream()).ReadToEnd());
// Further parse the information
string build = reader.Build;
int latest = int.Parse(build);
int current = currentBuild;
int skip = skipBuild;
// If the user wanted to skip this version, don't report the update
if (latest == skip)
{
UpdateCheckInformation info = new UpdateCheckInformation { NewVersionAvailable = false };
callback(new UpdateCheckResult(debug, info));
return;
}
UpdateCheckInformation info2 = new UpdateCheckInformation
{
NewVersionAvailable = latest > current,
DescriptionUrl = reader.DescriptionUrl,
DownloadFile = reader.DownloadFile,
Build = reader.Build,
Version = reader.Version,
};
callback(new UpdateCheckResult(debug, info2));
}
catch (Exception exc)
{
callback(new UpdateCheckResult(debug, new UpdateCheckInformation { Error = exc }));
}
});
}
/// <summary>
/// End Check for Updates
/// </summary>
/// <param name="result">
/// The result.
/// </param>
/// <returns>
/// Update Check information
/// </returns>
public static UpdateCheckInformation EndCheckForUpdates(IAsyncResult result)
{
return ((UpdateCheckResult)result).Result;
}
}
}
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