#region License Information (GPL v3)
/*
ShareX - A program that allows you to take screenshots and share any file type
Copyright (C) 2007-2015 ShareX Developers
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Optionally you can also view the license at .
*/
#endregion License Information (GPL v3)
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Cache;
namespace ShareX.HelpersLib
{
public class GitHubUpdateChecker : UpdateChecker
{
public string Owner { get; private set; }
public string Repo { get; private set; }
public bool IncludePreRelease { get; set; }
private const string APIURL = "https://api.github.com";
private string ReleasesURL
{
get
{
return string.Format("{0}/repos/{1}/{2}/releases", APIURL, Owner, Repo);
}
}
public GitHubUpdateChecker(string owner, string repo)
{
Owner = owner;
Repo = repo;
}
public override void CheckUpdate()
{
try
{
List releases = GetReleases();
if (releases != null && releases.Count > 0)
{
GitHubRelease latestRelease;
if (IncludePreRelease)
{
latestRelease = releases[0];
}
else
{
latestRelease = releases.FirstOrDefault(x => !x.prerelease);
}
if (latestRelease != null && !string.IsNullOrEmpty(latestRelease.tag_name) && latestRelease.tag_name.Length > 1 &&
latestRelease.tag_name[0] == 'v')
{
LatestVersion = new Version(latestRelease.tag_name.Substring(1));
if (latestRelease.assets != null && latestRelease.assets.Count > 0)
{
foreach (GitHubAsset asset in latestRelease.assets)
{
if (asset != null && !string.IsNullOrEmpty(asset.name) && asset.name.EndsWith(".exe", StringComparison.InvariantCultureIgnoreCase))
{
Filename = asset.name;
DownloadURL = asset.url;
RefreshStatus();
return;
}
}
}
}
}
}
catch (Exception e)
{
DebugHelper.WriteException(e, "GitHub update check failed");
}
Status = UpdateStatus.UpdateCheckFailed;
}
public string GetLatestDownloadURL()
{
List releases = GetReleases();
if (releases != null && releases.Count > 0)
{
return GetDownloadURL(releases[0]);
}
return null;
}
private string GetDownloadURL(GitHubRelease release)
{
if (release.assets != null && release.assets.Count > 0)
{
GitHubAsset asset = release.assets[0];
if (asset != null && !string.IsNullOrEmpty(asset.name))
{
return string.Format("https://github.com/{0}/{1}/releases/download/{2}/{3}", Owner, Repo, release.tag_name, asset.name);
}
}
return null;
}
private List GetReleases()
{
using (WebClient wc = new WebClient())
{
wc.CachePolicy = new RequestCachePolicy(RequestCacheLevel.NoCacheNoStore);
wc.Headers.Add("user-agent", "ShareX");
wc.Proxy = Proxy;
string response = wc.DownloadString(ReleasesURL);
if (!string.IsNullOrEmpty(response))
{
return JsonConvert.DeserializeObject>(response);
}
}
return null;
}
}
public class GitHubRelease
{
public string url { get; set; }
public string assets_url { get; set; }
public string upload_url { get; set; }
public string html_url { get; set; }
public int id { get; set; }
public string tag_name { get; set; }
public string target_commitish { get; set; }
public string name { get; set; }
public string body { get; set; }
public bool draft { get; set; }
public bool prerelease { get; set; }
public string created_at { get; set; }
public string published_at { get; set; }
public List assets { get; set; }
public string tarball_url { get; set; }
public string zipball_url { get; set; }
}
public class GitHubAsset
{
public string url { get; set; }
public int id { get; set; }
public string name { get; set; }
public string label { get; set; }
public string content_type { get; set; }
public string state { get; set; }
public int size { get; set; }
public int download_count { get; set; }
public string created_at { get; set; }
public string updated_at { get; set; }
}
}