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/*
* GNU AFFERO GENERAL PUBLIC LICENSE
* Version 3, 19 November 2007
* Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
* Everyone is permitted to copy and distribute verbatim copies
* of this license document, but changing it is not allowed.
*/
using System;
using System.Diagnostics;
using System.Net;
using Avalonia.Threading;
using UVtools.Core;
using UVtools.Core.Objects;
namespace UVtools.WPF.Structures
{
public class AppVersionChecker : BindableBase
{
private string _version;
private string _url;
public string Version
{
get => _version;
set
{
if(!RaiseAndSetIfChanged(ref _version, value)) return;
RaisePropertyChanged(nameof(VersionAnnouncementText));
RaisePropertyChanged(nameof(HaveNewVersion));
}
}
public string VersionAnnouncementText => $"New version {_version} is available!";
public string Url => $"{About.Website}/releases/tag/{_version}";
public bool HaveNewVersion => !string.IsNullOrEmpty(Version);
public bool Check()
{
try
{
using (WebClient client = new WebClient())
{
string htmlCode = client.DownloadString($"{About.Website}/releases");
const string searchFor = "/releases/tag/";
var startIndex = htmlCode.IndexOf(searchFor, StringComparison.InvariantCultureIgnoreCase) +
searchFor.Length;
var endIndex = htmlCode.IndexOf("\"", startIndex, StringComparison.InvariantCultureIgnoreCase);
var version = htmlCode.Substring(startIndex, endIndex - startIndex);
if (string.Compare(version, $"v{AppSettings.AssemblyVersion}", StringComparison.OrdinalIgnoreCase) > 0)
{
Dispatcher.UIThread.InvokeAsync(() =>
{
Version = version;;
});
return true;
}
}
}
catch (Exception e)
{
Debug.WriteLine(e.ToString());
}
return false;
}
}
}
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