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Fixed the updater to use github releases.
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This allows the removal of compiled exe to the git repo
It also cleans up older releases, so the upgrades continue to work.

resolves #5
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@sir-wilhelm
sir-wilhelm committed Feb 13, 2020
1 parent 2d7065e commit ba128f8
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Showing 3 changed files with 66 additions and 101 deletions.
137 changes: 43 additions & 94 deletions SmartHunter/Core/Helpers/Updater.cs
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Original file line number Diff line number Diff line change
@@ -1,126 +1,75 @@
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Reflection;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using SmartHunter.Game.Helpers;

namespace SmartHunter.Core.Helpers
{
public class Updater
{
private readonly List<UpdateNode> _needUpdates = new List<UpdateNode>();
private readonly string _apiEndpoint = "https://api.github.com/repos/gabrielefilipp/SmartHunter/commits?path=";
private readonly string _apiRaw = "https://github.com/gabrielefilipp/SmartHunter/raw";
private readonly string _dummyUserAgent = "Mozilla/4.0 (Compatible; Windows NT 5.1; MSIE 6.0) (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)";
private readonly string _apiEndpoint = "https://api.github.com/repos/sir-wilhelm/SmartHunter/releases/latest";
private readonly string _userAgent = "Mozilla/4.0 (Compatible; Windows NT 5.1; MSIE 6.0) (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)";

public bool CheckForUpdates(bool forceCheck = false)
public bool CheckForUpdates()
{
if (_needUpdates.Count == 0 || forceCheck == true)
try
{
try
{
using var client = new WebClient();
using var stream = client.OpenRead("http://google.com/generate_204");// check connection (maybe pointless?)
var branch = "master";
//var files = new string[5] { "SmartHunter/Game/Config/MemoryConfig.cs", "SmartHunter/Game/Config/PlayerDataConfig.cs", "SmartHunter/Game/Config/MonsterDataConfig.cs", "SmartHunter/Game/Config/LocalizationConfig.cs", "SmartHunter/bin/Debug/SmartHunter.exe" };

UpdateNode[] nodes = new UpdateNode[5] { new UpdateNode("", "SmartHunter/Game/Config/MemoryConfig.cs", "Memory.json", "", false), new UpdateNode("", "SmartHunter/Game/Config/PlayerDataConfig.cs", "PlayerData.json", "", false), new UpdateNode("", "SmartHunter/Game/Config/MonsterDataConfig.cs", "MonsterData.json", "", false), new UpdateNode("", "SmartHunter/Game/Config/LocalizationConfig.cs", "en-US.json", "", false), new UpdateNode("", "SmartHunter/bin/Debug/SmartHunter.exe", "SmartHunter.exe", "", true) };

foreach (UpdateNode node in nodes)
{
string apiUrl = $"{_apiEndpoint}{node.FilePath}";
client.Dispose();
client.Headers["User-Agent"] = _dummyUserAgent;

string apiResponseStr = client.DownloadString(apiUrl);
JArray json = JArray.Parse(apiResponseStr);
if (json.Count > 0)
{
JObject lastCommit = (JObject)json[0];
string hash = (string)lastCommit["sha"];
if (!ConfigHelper.Versions.Values.GetType().GetField(Path.GetFileNameWithoutExtension(node.FilePath)).GetValue(ConfigHelper.Versions.Values).Equals(hash))
{
Log.WriteLine($"Found a new version of '{Path.GetFileName(node.FileName)}'");
node.Hash = hash;
if (node.NeedDownload)
{
node.DownloadUrl = $"{_apiRaw}/{branch}/{node.FilePath}";
}
_needUpdates.Add(node);
}
}
}
}
catch
{
Log.WriteLine($"An error has occured while searching for updates... Resuming the normal flow of the application!");
return false;
}
var latestRelease = GetLatestRelease();
return new Version(latestRelease.tag_name) > Assembly.GetExecutingAssembly().GetName().Version;
}
catch (Exception e)
{
Log.WriteLine($"An error has occured while searching for updates:{Environment.NewLine}{e}");
Log.WriteLine("Resuming the normal flow of the application.");
return false;
}
return _needUpdates.Count > 0;
}

private LatestRelease GetLatestRelease()
{
var request = WebRequest.CreateHttp(_apiEndpoint);
request.ContentType = "application/json";
request.UserAgent = _userAgent;
using var stream = request.GetResponse().GetResponseStream();
using var reader = new StreamReader(stream);
var latestReleaseAsJson = reader.ReadToEnd();
return JsonConvert.DeserializeObject<LatestRelease>(latestReleaseAsJson);
}

public bool DownloadUpdates()
{
try
{
var latestRelease = GetLatestRelease();

using var client = new WebClient();
while (_needUpdates.Count > 0)
{
UpdateNode node = _needUpdates.First();
string hash = node.Hash;
string filePath = node.FilePath;
string fileName = node.FileName;
string fileNamePath = Path.GetFileName(filePath);
string fileNamePathWithNoExtension = Path.GetFileNameWithoutExtension(filePath);
if (node.NeedDownload)
{
string url = node.DownloadUrl;
Log.WriteLine($"Downloading file '{fileNamePath}'");
client.Dispose();
client.Headers["User-Agent"] = _dummyUserAgent;
if (Path.GetExtension(fileNamePath).Equals(".exe"))
{
client.DownloadFile(url, $"{fileNamePathWithNoExtension}_NEW.exe");
}
else
{
client.DownloadFile(url, fileNamePath);
}
}
else
{
Log.WriteLine($"Deleting file '{fileName}'");
File.Delete(fileName);
}
ConfigHelper.Versions.Values.GetType().GetField(fileNamePathWithNoExtension).SetValue(ConfigHelper.Versions.Values, hash);
ConfigHelper.Versions.Save();
_needUpdates.Remove(node);
}
var releaseZip = latestRelease.assets[0];
Log.WriteLine("Deleting older update.");
File.Delete(releaseZip.name);
client.DownloadFile(releaseZip.browser_download_url, releaseZip.name);
return true;
}
catch
catch (Exception e)
{
Log.WriteLine($"An error has occured while downloading update:{Environment.NewLine}{e}");
return false;
}
return true;
}

private class UpdateNode // TODO: Add a variable to contain a function pointer to execute a specific action if that Node needs to be updated
internal class LatestRelease
{
public string Hash { get; set; }
public string FilePath { get; }
public string FileName { get; set; }
public string DownloadUrl { get; set; }
public bool NeedDownload { get; }
public UpdateNode(string h, string path, string name, string url, bool download = false)
{
Hash = h;
FilePath = path;
FileName = name;
DownloadUrl = url;
NeedDownload = download;
}
public string tag_name { get; set; }
public Asset[] assets { get; set; }
}
internal class Asset
{
public string name { get; set; }
public string browser_download_url { get; set; }
}
}
}
29 changes: 22 additions & 7 deletions SmartHunter/Core/MemoryUpdater.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.IO.Compression;
using System.Linq;
using System.Reflection;
using System.Windows;
Expand Down Expand Up @@ -127,15 +128,29 @@ void CreateStateMachine()
() => true,
() =>
{
Log.WriteLine("Restarting Application!");
string update = ".\\SmartHunter_NEW.exe";
string exec = Assembly.GetEntryAssembly()?.Location;
if (File.Exists(update) && exec != null && File.Exists(exec))
Log.WriteLine("Deleting older updates");
var currentDirectory = Directory.GetCurrentDirectory();
var oldFiles = Directory.GetFiles(currentDirectory, "OLD_*", SearchOption.TopDirectoryOnly);
foreach (var oldFile in oldFiles)
{
File.Move(exec, "SmartHunter_OLD.exe");
File.Move(update, "SmartHunter.exe");
Process.Start("SmartHunter.exe");
File.Delete(oldFile);
}

Log.WriteLine("Renaming files that will be replaced");
using var archive = ZipFile.OpenRead("SmartHunter.zip");
foreach (var entry in archive.Entries)
{
if (File.Exists(entry.Name))
{
File.Move(entry.Name, $"OLD_{entry.Name}");
}
}

Log.WriteLine("Extracting new files.");
archive.ExtractToDirectory(currentDirectory);

Log.WriteLine("Update complete, Starting new SmartHunter, and exiting");
Process.Start("SmartHunter.exe");
Environment.Exit(1);
})
}));
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1 change: 1 addition & 0 deletions SmartHunter/SmartHunter.csproj
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,7 @@
</Target>
<ItemGroup>
<PackageReference Include="Newtonsoft.Json" Version="12.0.1" />
<PackageReference Include="System.IO.Compression" Version="4.3.0" />
</ItemGroup>
<ItemGroup>
<Reference Include="Microsoft.CSharp" />
Expand Down

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