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using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.IO;
using System.Linq;
using System.Runtime.Serialization;
using System.Security.Cryptography;
using System.Threading;
using System.Threading.Tasks;
using Ionic.Zip;
using IPA.Config;
using IPA.Loader;
using IPA.Loader.Features;
using IPA.Utilities;
using IPA.Utilities.Async;
using Newtonsoft.Json;
using SemVer;
using UnityEngine;
using UnityEngine.Networking;
using static IPA.Loader.PluginManager;
using Logger = IPA.Logging.Logger;
using Version = SemVer.Version;
namespace IPA.Updating.BeatMods
{
[SuppressMessage("ReSharper", "ClassNeverInstantiated.Global")]
internal partial class Updater : MonoBehaviour
{
internal const string SpecialDeletionsFile = "$$delete";
}
#if BeatSaber
[SuppressMessage("ReSharper", "ClassNeverInstantiated.Global")]
internal partial class Updater : MonoBehaviour
{
public static Updater Instance;
internal static bool ModListPresent = false;
public void Awake()
{
try
{
if (Instance != null)
Destroy(this);
else
{
Instance = this;
DontDestroyOnLoad(this);
if (!ModListPresent && SelfConfig.Updates_.AutoCheckUpdates_)
CheckForUpdates();
}
}
catch (Exception e)
{
Logger.updater.Error(e);
}
}
internal delegate void CheckUpdatesComplete(List<DependencyObject> toUpdate);
public void CheckForUpdates(CheckUpdatesComplete onComplete = null) => StartCoroutine(CheckForUpdatesCoroutine(onComplete));
internal class DependencyObject
{
public string Name { get; set; }
public Version Version { get; set; }
public Version ResolvedVersion { get; set; }
public Range Requirement { get; set; }
public Range Conflicts { get; set; } // a range of versions that are not allowed to be downloaded
public bool Resolved { get; set; }
public bool Has { get; set; }
public HashSet<string> Consumers { get; set; } = new HashSet<string>();
public bool MetaRequestFailed { get; set; }
public PluginMetadata LocalPluginMeta { get; set; }
public bool IsLegacy { get; set; } = false;
public override string ToString()
{
return $"{Name}@{Version}{(Resolved ? $" -> {ResolvedVersion}" : "")} - ({Requirement} ! {Conflicts}) {(Has ? " Already have" : "")}";
}
}
public static void ResetRequestCache()
{
requestCache.Clear();
modCache.Clear();
modVersionsCache.Clear();
}
private static readonly Dictionary<string, string> requestCache = new Dictionary<string, string>();
private static IEnumerator GetBeatModsEndpoint(string url, Ref<string> result)
{
if (requestCache.TryGetValue(url, out string value))
{
result.Value = value;
}
else
{
using (var request = UnityWebRequest.Get(ApiEndpoint.ApiBase + url))
{
yield return request.SendWebRequest();
if (request.isNetworkError)
{
result.Error = new NetworkException($"Network error while trying to download: {request.error}");
yield break;
}
if (request.isHttpError)
{
if (request.responseCode == 404)
{
result.Error = new NetworkException("Not found");
yield break;
}
result.Error = new NetworkException($"Server returned error {request.error} while getting data");
yield break;
}
result.Value = request.downloadHandler.text;
requestCache[url] = result.Value;
}
}
}
private static readonly Dictionary<string, ApiEndpoint.Mod> modCache = new Dictionary<string, ApiEndpoint.Mod>();
internal static IEnumerator GetModInfo(string modName, string ver, Ref<ApiEndpoint.Mod> result)
{
var uri = string.Format(ApiEndpoint.GetModInfoEndpoint, Uri.EscapeDataString(modName), Uri.EscapeDataString(ver));
if (modCache.TryGetValue(uri, out ApiEndpoint.Mod value))
{
result.Value = value;
}
else
{
Ref<string> reqResult = new Ref<string>("");
yield return GetBeatModsEndpoint(uri, reqResult);
try
{
result.Value = JsonConvert.DeserializeObject<List<ApiEndpoint.Mod>>(reqResult.Value).First();
modCache[uri] = result.Value;
}
catch (Exception e)
{
result.Error = new Exception("Error decoding response", e);
}
}
}
private static readonly Dictionary<string, List<ApiEndpoint.Mod>> modVersionsCache = new Dictionary<string, List<ApiEndpoint.Mod>>();
internal static IEnumerator GetModVersionsMatching(string modName, Range range, Ref<List<ApiEndpoint.Mod>> result)
{
var uri = string.Format(ApiEndpoint.GetModsByName, Uri.EscapeDataString(modName));
if (modVersionsCache.TryGetValue(uri, out List<ApiEndpoint.Mod> value))
{
result.Value = value;
}
else
{
Ref<string> reqResult = new Ref<string>("");
yield return GetBeatModsEndpoint(uri, reqResult);
try
{
result.Value = JsonConvert.DeserializeObject<List<ApiEndpoint.Mod>>(reqResult.Value)
.Where(m => range.IsSatisfied(m.Version)).ToList();
modVersionsCache[uri] = result.Value;
}
catch (Exception e)
{
result.Error = new Exception("Error decoding response", e);
}
}
}
internal IEnumerator CheckForUpdatesCoroutine(CheckUpdatesComplete onComplete)
{
var depList = new Ref<List<DependencyObject>>(new List<DependencyObject>());
foreach (var plugin in BSMetas)
{ // initialize with data to resolve (1.1)
if (plugin.Metadata.Id != null)
{ // updatable
var msinfo = plugin.Metadata;
var dep = new DependencyObject
{
Name = msinfo.Id,
Version = msinfo.Version,
Requirement = new Range($">={msinfo.Version}"),
LocalPluginMeta = msinfo
};
depList.Value.Add(dep);
}
}
foreach (var meta in PluginLoader.ignoredPlugins.Keys)
{ // update ignored
if (meta.Id != null)
{ // updatable
var dep = new DependencyObject
{
Name = meta.Id,
Version = meta.Version,
Requirement = new Range($">={meta.Version}"),
LocalPluginMeta = meta
};
depList.Value.Add(dep);
}
}
foreach (var meta in DisabledPlugins)
{ // update ignored
if (meta.Id != null)
{ // updatable
var dep = new DependencyObject
{
Name = meta.Id,
Version = meta.Version,
Requirement = new Range($">={meta.Version}"),
LocalPluginMeta = meta
};
depList.Value.Add(dep);
}
}
#pragma warning disable CS0618 // Type or member is obsolete
foreach (var plug in Plugins)
{ // throw these in the updater on the off chance that they are set up properly
try
{
var dep = new DependencyObject
{
Name = plug.Name,
Version = new Version(plug.Version),
Requirement = new Range($">={plug.Version}"),
IsLegacy = true,
LocalPluginMeta = null
};
depList.Value.Add(dep);
}
catch (Exception e)
{
Logger.updater.Warn($"Error trying to add legacy plugin {plug.Name} to updater");
Logger.updater.Warn(e);
}
}
#pragma warning restore CS0618 // Type or member is obsolete
foreach (var dep in depList.Value)
Logger.updater.Debug($"Phantom Dependency: {dep}");
yield return ResolveDependencyRanges(depList);
foreach (var dep in depList.Value)
Logger.updater.Debug($"Dependency: {dep}");
yield return ResolveDependencyPresence(depList);
foreach (var dep in depList.Value)
Logger.updater.Debug($"Dependency: {dep}");
CheckDependencies(depList);
onComplete?.Invoke(depList);
if (!ModListPresent && SelfConfig.Updates_.AutoUpdate_)
StartDownload(depList.Value);
}
internal IEnumerator ResolveDependencyRanges(Ref<List<DependencyObject>> list)
{
for (int i = 0; i < list.Value.Count; i++)
{ // Grab dependencies (1.2)
var dep = list.Value[i];
var mod = new Ref<ApiEndpoint.Mod>(null);
yield return GetModInfo(dep.Name, "", mod);
try { mod.Verify(); }
catch (Exception e)
{
Logger.updater.Error($"Error getting info for {dep.Name}");
if (SelfConfig.Debug_.ShowHandledErrorStackTraces_)
Logger.updater.Error(e);
dep.MetaRequestFailed = true;
continue;
}
list.Value.AddRange(mod.Value.Dependencies.Select(m => new DependencyObject
{
Name = m.Name,
Requirement = new Range($"^{m.Version}"),
Consumers = new HashSet<string> { dep.Name }
}));
// currently no conflicts exist in BeatMods
//list.Value.AddRange(mod.Value.Links.Dependencies.Select(d => new DependencyObject { Name = d.Name, Requirement = d.VersionRange, Consumers = new HashSet<string> { dep.Name } }));
//list.Value.AddRange(mod.Value.Links.Conflicts.Select(d => new DependencyObject { Name = d.Name, Conflicts = d.VersionRange, Consumers = new HashSet<string> { dep.Name } }));
}
var depNames = new HashSet<string>();
var final = new List<DependencyObject>();
foreach (var dep in list.Value)
{ // agregate ranges and the like (1.3)
if (!depNames.Contains(dep.Name))
{ // should add it
depNames.Add(dep.Name);
final.Add(dep);
}
else
{
var toMod = final.First(d => d.Name == dep.Name);
if (dep.Requirement != null)
{
toMod.Requirement = toMod.Requirement.Intersect(dep.Requirement);
foreach (var consume in dep.Consumers)
toMod.Consumers.Add(consume);
}
if (dep.Conflicts != null)
{
toMod.Conflicts = toMod.Conflicts == null
? dep.Conflicts
: new Range($"{toMod.Conflicts} || {dep.Conflicts}");
}
}
}
list.Value = final;
}
internal IEnumerator ResolveDependencyPresence(Ref<List<DependencyObject>> list)
{
foreach(var dep in list.Value)
{
dep.Has = dep.Version != null; // dep.Version is only not null if its already installed
if (dep.MetaRequestFailed)
{
Logger.updater.Warn($"{dep.Name} info request failed, not trying again");
continue;
}
var modsMatching = new Ref<List<ApiEndpoint.Mod>>(null);
yield return GetModVersionsMatching(dep.Name, dep.Requirement, modsMatching);
try { modsMatching.Verify(); }
catch (Exception e)
{
Logger.updater.Error($"Error getting mod list for {dep.Name}");
if (SelfConfig.Debug_.ShowHandledErrorStackTraces_)
Logger.updater.Error(e);
dep.MetaRequestFailed = true;
continue;
}
var ver = modsMatching.Value
.NonNull() // entry is not null
.Where(versionCheck => versionCheck.GameVersion == UnityGame.GameVersion) // game version matches
.Where(approvalCheck => approvalCheck.Status == ApiEndpoint.Mod.ApprovedStatus) // version approved
// TODO: fix; it seems wrong somehow
.Where(conflictsCheck => dep.Conflicts == null || !dep.Conflicts.IsSatisfied(conflictsCheck.Version)) // not a conflicting version
.Select(mod => mod.Version).Max(); // (2.1) get the max version
dep.Resolved = ver != null;
if (dep.Resolved) dep.ResolvedVersion = ver; // (2.2)
dep.Has = dep.Resolved && dep.Version == dep.ResolvedVersion;
}
}
internal void CheckDependencies(Ref<List<DependencyObject>> list)
{
var toDl = new List<DependencyObject>();
foreach (var dep in list.Value)
{ // figure out which ones need to be downloaded (3.1)
if (dep.Resolved)
{
Logger.updater.Debug($"Resolved: {dep}");
if (!dep.Has)
{
Logger.updater.Debug($"To Download: {dep}");
toDl.Add(dep);
}
}
else if (!dep.Has)
{
if (dep.Version != null && dep.Requirement.IsSatisfied(dep.Version))
Logger.updater.Notice($"Mod {dep.Name} running a newer version than is on BeatMods ({dep.Version})");
else
Logger.updater.Warn($"Could not resolve dependency {dep}");
}
}
Logger.updater.Debug($"To Download {string.Join(", ", toDl.Select(d => $"{d.Name}@{d.ResolvedVersion}"))}");
list.Value = toDl;
}
internal delegate void DownloadStart(DependencyObject obj);
internal delegate void DownloadProgress(DependencyObject obj, long totalBytes, long currentBytes, double progress);
internal delegate void DownloadFailed(DependencyObject obj, string error);
internal delegate void DownloadFinish(DependencyObject obj);
/// <summary>
/// This will still be called even if there was an error. Called after all three download/install attempts, or after a successful installation.
/// ALWAYS called.
/// </summary>
/// <param name="obj"></param>
/// <param name="didError"></param>
internal delegate void InstallFinish(DependencyObject obj, bool didError);
/// <summary>
/// This can be called multiple times
/// </summary>
/// <param name="obj"></param>
/// <param name="error"></param>
internal delegate void InstallFailed(DependencyObject obj, Exception error);
internal void StartDownload(IEnumerable<DependencyObject> download, DownloadStart downloadStart = null,
DownloadProgress downloadProgress = null, DownloadFailed downloadFail = null, DownloadFinish downloadFinish = null,
InstallFailed installFail = null, InstallFinish installFinish = null)
{
foreach (var item in download)
StartCoroutine(UpdateModCoroutine(item, downloadStart, downloadProgress, downloadFail, downloadFinish, installFail, installFinish));
}
private static IEnumerator UpdateModCoroutine(DependencyObject item, DownloadStart downloadStart,
DownloadProgress progress, DownloadFailed dlFail, DownloadFinish finish,
InstallFailed installFail, InstallFinish installFinish)
{ // (3.2)
Logger.updater.Debug($"Release: {UnityGame.ReleaseType}");
var mod = new Ref<ApiEndpoint.Mod>(null);
yield return GetModInfo(item.Name, item.ResolvedVersion.ToString(), mod);
try { mod.Verify(); }
catch (Exception e)
{
Logger.updater.Error($"Error occurred while trying to get information for {item}");
if (SelfConfig.Debug_.ShowHandledErrorStackTraces_)
Logger.updater.Error(e);
yield break;
}
var releaseName = UnityGame.ReleaseType == UnityGame.Release.Steam
? ApiEndpoint.Mod.DownloadsObject.TypeSteam : ApiEndpoint.Mod.DownloadsObject.TypeOculus;
var platformFile = mod.Value.Downloads.First(f => f.Type == ApiEndpoint.Mod.DownloadsObject.TypeUniversal || f.Type == releaseName);
string url = ApiEndpoint.BeatModBase + platformFile.Path;
Logger.updater.Debug($"URL = {url}");
const int maxTries = 3;
int tries = maxTries;
while (tries > 0)
{
if (tries-- != maxTries)
Logger.updater.Debug("Re-trying download...");
using (var stream = new MemoryStream())
using (var request = UnityWebRequest.Get(url))
using (var taskTokenSource = new CancellationTokenSource())
{
var dlh = new StreamDownloadHandler(stream, (int i1, int i2, double d) => progress?.Invoke(item, i1, i2, d));
request.downloadHandler = dlh;
downloadStart?.Invoke(item);
Logger.updater.Debug("Sending request");
//Logger.updater.Debug(request?.downloadHandler?.ToString() ?? "DLH==NULL");
yield return request.SendWebRequest();
Logger.updater.Debug("Download finished");
if (request.isNetworkError)
{
Logger.updater.Error("Network error while trying to update mod");
Logger.updater.Error(request.error);
dlFail?.Invoke(item, request.error);
taskTokenSource.Cancel();
continue;
}
if (request.isHttpError)
{
Logger.updater.Error("Server returned an error code while trying to update mod");
Logger.updater.Error(request.error);
dlFail?.Invoke(item, request.error);
taskTokenSource.Cancel();
continue;
}
finish?.Invoke(item);
stream.Seek(0, SeekOrigin.Begin); // reset to beginning
var downloadTask = Task.Run(() =>
{ // use slightly more multi threaded approach than co-routines
// ReSharper disable once AccessToDisposedClosure
ExtractPluginAsync(stream, item, platformFile);
}, taskTokenSource.Token);
yield return Coroutines.WaitForTask(downloadTask);
if (downloadTask.IsFaulted)
{
if (downloadTask.Exception != null && downloadTask.Exception.InnerExceptions.Any(e => e is BeatmodsInterceptException))
{ // any exception is an intercept exception
Logger.updater.Error($"BeatMods did not return expected data for {item.Name}");
}
else
Logger.updater.Error($"Error downloading mod {item.Name}");
if (SelfConfig.Debug_.ShowHandledErrorStackTraces_)
Logger.updater.Error(downloadTask.Exception);
installFail?.Invoke(item, downloadTask.Exception);
continue;
}
break;
}
}
if (tries == 0)
{
Logger.updater.Warn($"Plugin download failed {maxTries} times, not re-trying");
installFinish?.Invoke(item, true);
}
else
{
Logger.updater.Debug("Download complete");
installFinish?.Invoke(item, false);
}
}
internal class StreamDownloadHandler : DownloadHandlerScript
{
internal int length;
internal int cLen;
internal Action<int, int, double> progress;
public MemoryStream Stream { get; set; }
public StreamDownloadHandler(MemoryStream stream, Action<int, int, double> progress = null)
{
Stream = stream;
this.progress = progress;
}
protected override void ReceiveContentLength(int contentLength)
{
Stream.Capacity = length = contentLength;
cLen = 0;
Logger.updater.Debug($"Got content length: {contentLength}");
}
protected override void CompleteContent()
{
Logger.updater.Debug("Download complete");
}
protected override bool ReceiveData(byte[] rData, int dataLength)
{
if (rData == null || rData.Length < 1)
{
Logger.updater.Debug("CustomWebRequest :: ReceiveData - received a null/empty buffer");
return false;
}
cLen += dataLength;
Stream.Write(rData, 0, dataLength);
progress?.Invoke(length, cLen, ((double)cLen) / length);
return true;
}
protected override byte[] GetData() { return null; }
protected override float GetProgress()
{
return 0f;
}
public override string ToString()
{
return $"{base.ToString()} ({Stream})";
}
}
private static void ExtractPluginAsync(MemoryStream stream, DependencyObject item, ApiEndpoint.Mod.DownloadsObject fileInfo)
{ // (3.3)
Logger.updater.Debug($"Extracting ZIP file for {item.Name}");
/*var data = stream.GetBuffer();
SHA1 sha = new SHA1CryptoServiceProvider();
var hash = sha.ComputeHash(data);
if (!Utils.UnsafeCompare(hash, fileInfo.Hash))
throw new Exception("The hash for the file doesn't match what is defined");*/
var targetDir = Path.Combine(UnityGame.InstallPath, "IPA", Path.GetRandomFileName() + "_Pending");
Directory.CreateDirectory(targetDir);
var eventualOutput = Path.Combine(UnityGame.InstallPath, "IPA", "Pending");
if (!Directory.Exists(eventualOutput))
Directory.CreateDirectory(eventualOutput);
try
{
bool shouldDeleteOldFile = !(item.LocalPluginMeta?.IsSelf).Unwrap();
using (var zipFile = ZipFile.Read(stream))
{
Logger.updater.Debug("Streams opened");
foreach (var entry in zipFile)
{
if (entry.IsDirectory)
{
Logger.updater.Debug($"Creating directory {entry.FileName}");
Directory.CreateDirectory(Path.Combine(targetDir, entry.FileName));
}
else
{
using (var ostream = new MemoryStream((int)entry.UncompressedSize))
{
entry.Extract(ostream);
ostream.Seek(0, SeekOrigin.Begin);
var md5 = new MD5CryptoServiceProvider();
var fileHash = md5.ComputeHash(ostream);
try
{
if (!Utils.UnsafeCompare(fileHash, fileInfo.Hashes.Where(h => h.File == entry.FileName).Select(h => h.Hash).First()))
throw new Exception("The hash for the file doesn't match what is defined");
}
catch (KeyNotFoundException)
{
throw new BeatmodsInterceptException("BeatMods did not send the hashes for the zip's content!");
}
ostream.Seek(0, SeekOrigin.Begin);
FileInfo targetFile = new FileInfo(Path.Combine(targetDir, entry.FileName));
Directory.CreateDirectory(targetFile.DirectoryName ?? throw new InvalidOperationException());
if (item.LocalPluginMeta != null &&
Utils.GetRelativePath(targetFile.FullName, targetDir) == Utils.GetRelativePath(item.LocalPluginMeta?.File.FullName, UnityGame.InstallPath))
shouldDeleteOldFile = false; // overwriting old file, no need to delete
/*if (targetFile.Exists)
backup.Add(targetFile);
else
newFiles.Add(targetFile);*/
Logger.updater.Debug($"Extracting file {targetFile.FullName}");
targetFile.Delete();
using (var fstream = targetFile.Create())
ostream.CopyTo(fstream);
}
}
}
}
if (shouldDeleteOldFile && item.LocalPluginMeta != null)
File.AppendAllLines(Path.Combine(targetDir, SpecialDeletionsFile), new[] { Utils.GetRelativePath(item.LocalPluginMeta?.File.FullName, UnityGame.InstallPath) });
}
catch (Exception)
{ // something failed; restore
Directory.Delete(targetDir, true); // delete extraction site
throw;
}
if ((item.LocalPluginMeta?.IsSelf).Unwrap())
{ // currently updating self, so copy to working dir and update
NeedsManualRestart = true; // flag so that ModList keeps the restart button hidden
Utils.CopyAll(new DirectoryInfo(targetDir), new DirectoryInfo(UnityGame.InstallPath));
var deleteFile = Path.Combine(UnityGame.InstallPath, SpecialDeletionsFile);
if (File.Exists(deleteFile)) File.Delete(deleteFile);
Process.Start(new ProcessStartInfo
{
// will never actually be null
FileName = item.LocalPluginMeta?.File.FullName ?? throw new InvalidOperationException(),
Arguments = $"-nw={Process.GetCurrentProcess().Id}",
UseShellExecute = false
});
}
else
Utils.CopyAll(new DirectoryInfo(targetDir), new DirectoryInfo(eventualOutput), SpecialDeletionsFile);
Directory.Delete(targetDir, true); // delete extraction site
Logger.updater.Debug("Extractor exited");
}
internal static bool NeedsManualRestart = false;
}
[Serializable]
internal class NetworkException : Exception
{
public NetworkException()
{
}
public NetworkException(string message) : base(message)
{
}
public NetworkException(string message, Exception innerException) : base(message, innerException)
{
}
protected NetworkException(SerializationInfo info, StreamingContext context) : base(info, context)
{
}
}
[Serializable]
internal class BeatmodsInterceptException : Exception
{
public BeatmodsInterceptException()
{
}
public BeatmodsInterceptException(string message) : base(message)
{
}
public BeatmodsInterceptException(string message, Exception innerException) : base(message, innerException)
{
}
protected BeatmodsInterceptException(SerializationInfo info, StreamingContext context) : base(info, context)
{
}
}
#endif
}