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using IllusionInjector.Updating.Backup;
using IllusionInjector.Utilities;
using Ionic.Zip;
using Newtonsoft.Json;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading;
using System.Threading.Tasks;
using UnityEngine;
using UnityEngine.Networking;
using Logger = IllusionInjector.Logging.Logger;
namespace IllusionInjector.Updating.ModsaberML
{
class Updater : MonoBehaviour
{
public static Updater instance;
public void Awake()
{
try
{
if (instance != null)
Destroy(this);
else
{
instance = this;
CheckForUpdates();
}
}
catch (Exception e)
{
Logger.log.Error(e);
}
}
public void CheckForUpdates()
{
StartCoroutine(CheckForUpdatesCoroutine());
}
private struct UpdateStruct
{
public PluginManager.BSPluginMeta plugin;
public ApiEndpoint.Mod externInfo;
}
IEnumerator CheckForUpdatesCoroutine()
{
Logger.log.Info("Checking for mod updates...");
var toUpdate = new List<UpdateStruct>();
var GameVersion = new Version(Application.version);
foreach (var plugin in PluginManager.BSMetas)
{
var info = plugin.ModsaberInfo;
if (info == null) continue;
using (var request = UnityWebRequest.Get(ApiEndpoint.ApiBase + string.Format(ApiEndpoint.GetApprovedEndpoint, info.InternalName)))
{
yield return request.SendWebRequest();
if (request.isNetworkError)
{
Logger.log.Error("Network error while trying to update mods");
Logger.log.Error(request.error);
continue;
}
if (request.isHttpError)
{
if (request.responseCode == 404)
{
Logger.log.Error($"Mod {plugin.Plugin.Name} not found under name {info.InternalName}");
continue;
}
Logger.log.Error($"Server returned an error code while trying to update mod {plugin.Plugin.Name}");
Logger.log.Error(request.error);
continue;
}
var json = request.downloadHandler.text;
ApiEndpoint.Mod modRegistry;
try
{
modRegistry = JsonConvert.DeserializeObject<ApiEndpoint.Mod>(json);
Logger.log.Debug(modRegistry.ToString());
}
catch (Exception e)
{
Logger.log.Error($"Parse error while trying to update mods");
Logger.log.Error(e);
continue;
}
Logger.log.Debug($"Found Modsaber.ML registration for {plugin.Plugin.Name} ({info.InternalName})");
Logger.log.Debug($"Installed version: {info.CurrentVersion}; Latest version: {modRegistry.Version}");
if (modRegistry.Version > info.CurrentVersion)
{
Logger.log.Debug($"{plugin.Plugin.Name} needs an update!");
if (modRegistry.GameVersion == GameVersion)
{
Logger.log.Debug($"Queueing update...");
toUpdate.Add(new UpdateStruct
{
plugin = plugin,
externInfo = modRegistry
});
}
else
{
Logger.log.Warn($"Update avaliable for {plugin.Plugin.Name}, but for a different Beat Saber version!");
}
}
}
}
Logger.log.Info($"{toUpdate.Count} mods need updating");
if (toUpdate.Count == 0) yield break;
string tempDirectory = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName() + Path.GetRandomFileName());
Directory.CreateDirectory(tempDirectory);
foreach (var item in toUpdate)
{
StartCoroutine(UpdateModCoroutine(item, tempDirectory));
}
}
class StreamDownloadHandler : DownloadHandlerScript
{
public MemoryStream Stream { get; set; }
public StreamDownloadHandler(MemoryStream stream) : base()
{
Stream = stream;
}
protected override void ReceiveContentLength(int contentLength)
{
Stream.Capacity = contentLength;
Logger.log.Debug($"Got content length: {contentLength}");
}
protected override void CompleteContent()
{
Logger.log.Debug("Download complete");
}
protected override bool ReceiveData(byte[] data, int dataLength)
{
if (data == null || data.Length < 1)
{
Logger.log.Debug("CustomWebRequest :: ReceiveData - received a null/empty buffer");
return false;
}
Stream.Write(data, 0, dataLength);
return true;
}
protected override byte[] GetData() { return null; }
protected override float GetProgress()
{
return 0f;
}
public override string ToString()
{
return $"{base.ToString()} ({Stream?.ToString()})";
}
}
private void ExtractPluginAsync(MemoryStream stream, UpdateStruct item, ApiEndpoint.Mod.PlatformFile fileInfo, string tempDirectory)
{
Logger.log.Debug($"Extracting ZIP file for {item.plugin.Plugin.Name}");
var data = stream.GetBuffer();
SHA1 sha = new SHA1CryptoServiceProvider();
var hash = sha.ComputeHash(data);
if (!LoneFunctions.UnsafeCompare(hash, fileInfo.Hash))
throw new Exception("The hash for the file doesn't match what is defined");
var newFiles = new List<FileInfo>();
var backup = new BackupUnit(tempDirectory, $"backup-{item.plugin.ModsaberInfo.InternalName}");
try
{
bool shouldDeleteOldFile = true;
using (var zipFile = ZipFile.Read(stream))
{
Logger.log.Debug("Streams opened");
foreach (var entry in zipFile)
{
if (entry.IsDirectory)
{
Logger.log.Debug($"Creating directory {entry.FileName}");
Directory.CreateDirectory(Path.Combine(Environment.CurrentDirectory, entry.FileName));
}
else
{
using (var ostream = new MemoryStream((int)entry.UncompressedSize))
{
entry.Extract(ostream);
ostream.Seek(0, SeekOrigin.Begin);
sha = new SHA1CryptoServiceProvider();
var fileHash = sha.ComputeHash(ostream);
if (!LoneFunctions.UnsafeCompare(fileHash, fileInfo.FileHashes[entry.FileName]))
throw new Exception("The hash for the file doesn't match what is defined");
ostream.Seek(0, SeekOrigin.Begin);
FileInfo targetFile = new FileInfo(Path.Combine(Environment.CurrentDirectory, entry.FileName));
Directory.CreateDirectory(targetFile.DirectoryName);
if (targetFile.FullName == item.plugin.Filename)
shouldDeleteOldFile = false; // overwriting old file, no need to delete
if (targetFile.Exists)
backup.Add(targetFile);
else
newFiles.Add(targetFile);
Logger.log.Debug($"Extracting file {targetFile.FullName}");
var fstream = targetFile.Create();
ostream.CopyTo(fstream);
}
}
}
}
if (item.plugin.Plugin is SelfPlugin)
{ // currently updating self
Process.Start(new ProcessStartInfo
{
FileName = item.plugin.Filename,
Arguments = $"--waitfor={Process.GetCurrentProcess().Id} --nowait",
UseShellExecute = false
});
}
else if (shouldDeleteOldFile)
File.Delete(item.plugin.Filename);
}
catch (Exception)
{ // something failed; restore
foreach (var file in newFiles)
file.Delete();
backup.Restore();
backup.Delete();
throw;
}
backup.Delete();
Logger.log.Debug("Downloader exited");
}
IEnumerator UpdateModCoroutine(UpdateStruct item, string tempDirectory)
{
Logger.log.Debug($"Steam avaliable: {SteamCheck.IsAvailable}");
ApiEndpoint.Mod.PlatformFile platformFile;
if (SteamCheck.IsAvailable || item.externInfo.Files.Oculus == null)
platformFile = item.externInfo.Files.Steam;
else
platformFile = item.externInfo.Files.Oculus;
string url = platformFile.DownloadPath;
Logger.log.Debug($"URL = {url}");
const int MaxTries = 3;
int maxTries = MaxTries;
while (maxTries > 0)
{
if (maxTries-- != MaxTries)
Logger.log.Info($"Re-trying download...");
using (var stream = new MemoryStream())
using (var request = UnityWebRequest.Get(url))
using (var taskTokenSource = new CancellationTokenSource())
{
var dlh = new StreamDownloadHandler(stream);
request.downloadHandler = dlh;
Logger.log.Debug("Sending request");
//Logger.log.Debug(request?.downloadHandler?.ToString() ?? "DLH==NULL");
yield return request.SendWebRequest();
Logger.log.Debug("Download finished");
if (request.isNetworkError)
{
Logger.log.Error("Network error while trying to update mod");
Logger.log.Error(request.error);
taskTokenSource.Cancel();
continue;
}
if (request.isHttpError)
{
Logger.log.Error($"Server returned an error code while trying to update mod");
Logger.log.Error(request.error);
taskTokenSource.Cancel();
continue;
}
stream.Seek(0, SeekOrigin.Begin); // reset to beginning
var downloadTask = Task.Run(() =>
{ // use slightly more multithreaded approach than coroutines
ExtractPluginAsync(stream, item, platformFile, tempDirectory);
}, taskTokenSource.Token);
while (!(downloadTask.IsCompleted || downloadTask.IsCanceled || downloadTask.IsFaulted))
yield return null; // pause coroutine until task is done
if (downloadTask.IsFaulted)
{
Logger.log.Error($"Error downloading mod {item.plugin.Plugin.Name}");
Logger.log.Error(downloadTask.Exception);
continue;
}
break;
}
}
if (maxTries == 0)
Logger.log.Warn($"Plugin download failed {MaxTries} times, not re-trying");
else
Logger.log.Debug("Download complete");
}
}
}