Esempio n. 1
0
        internal static async Task RestoreFM(FanMission fm)
        {
            if (!GameIsKnownAndSupported(fm.Game))
            {
                Log("Game type is unknown or unsupported (" + fm.Archive + ", " + fm.InstalledDir + ", " + fm.Game + ")", stackTrace: true);
                return;
            }

            bool restoreSavesAndScreensOnly = Config.BackupFMData == BackupFMData.SavesAndScreensOnly &&
                                              (fm.Game != Game.Thief3 || !Config.T3UseCentralSaves);
            bool fmIsT3 = fm.Game == Game.Thief3;

            await Task.Run(() =>
            {
                (string Name, bool DarkLoader)fileToUse = ("", false);

                #region DarkLoader

                string dlBakDir = Path.Combine(Config.FMsBackupPath, Paths.DarkLoaderSaveBakDir);

                if (Directory.Exists(dlBakDir))
                {
                    foreach (string f in FastIO.GetFilesTopOnly(dlBakDir, "*.zip"))
                    {
                        string fn = f.GetFileNameFast();
                        int index = fn.LastIndexOf("_saves.zip", StringComparison.OrdinalIgnoreCase);
                        if (index == -1)
                        {
                            continue;
                        }

                        string an = fn.Substring(0, index).Trim();
                        // Account for the fact that DarkLoader trims archive names for save backup zips
                        // Note: I guess it doesn't?! The code heavily implies it does. Still, it works either
                        // way, so whatever.
                        if (!an.IsEmpty() && an.PathEqualsI(fm.Archive.RemoveExtension().Trim()))
                        {
                            fileToUse = (f, true);
                            break;
                        }
                    }
                }

                #endregion

                #region AngelLoader / FMSel / NewDarkLoader

                if (fileToUse.Name.IsEmpty())
                {
                    var bakFiles = new List <FileInfo>();

                    void AddBakFilesFrom(string path)
                    {
                        for (int i = 0; i < 2; i++)
                        {
                            string fNoExt  = i == 0 ? fm.Archive.RemoveExtension() : fm.InstalledDir;
                            string bakFile = Path.Combine(path, fNoExt + Paths.FMBackupSuffix);
                            if (File.Exists(bakFile))
                            {
                                bakFiles.Add(new FileInfo(bakFile));
                            }
                        }
                    }

                    // Our backup path, separate to avoid creating any more ambiguity
                    AddBakFilesFrom(Config.FMsBackupPath);

                    // If ArchiveName.bak and InstalledName.bak files both exist, use the newest of the two
                    fileToUse.Name = bakFiles.Count == 1
                        ? bakFiles[0].FullName
                        : bakFiles.Count > 1
                        ? bakFiles.OrderByDescending(x => x.LastWriteTime).ToList()[0].FullName
                        : "";

                    bakFiles.Clear();

                    // Use file from our bak dir if it exists, otherwise use the newest file from all archive dirs
                    // (for automatic use of FMSel/NDL saves)
                    if (fileToUse.Name.IsEmpty())
                    {
                        foreach (string path in FMArchives.GetFMArchivePaths())
                        {
                            AddBakFilesFrom(path);
                        }

                        if (bakFiles.Count == 0)
                        {
                            return;
                        }

                        // Use the newest of all files found in all archive dirs
                        fileToUse.Name = bakFiles.OrderByDescending(x => x.LastWriteTime).ToList()[0].FullName;
                    }
                }

                #endregion

                var fileExcludes = new List <string>();
                //var dirExcludes = new List<string>();

                string thisFMInstallsBasePath = Config.GetFMInstallPathUnsafe(fm.Game);
                string fmInstalledPath        = Path.Combine(thisFMInstallsBasePath, fm.InstalledDir);

                using (var archive = GetZipArchiveCharEnc(fileToUse.Name))
                {
                    int filesCount = archive.Entries.Count;
                    if (fileToUse.DarkLoader)
                    {
                        for (int i = 0; i < filesCount; i++)
                        {
                            var entry = archive.Entries[i];
                            string fn = entry.FullName;
                            if (!fn.ContainsDirSep())
                            {
                                Directory.CreateDirectory(Path.Combine(fmInstalledPath, _darkSavesDir));
                                entry.ExtractToFile(Path.Combine(fmInstalledPath, _darkSavesDir, fn), overwrite: true);
                            }
                            else if (fm.Game == Game.SS2 && (_ss2SaveDirsInZipRegex.IsMatch(fn) || fn.PathStartsWithI(_ss2CurrentDirS)))
                            {
                                Directory.CreateDirectory(Path.Combine(fmInstalledPath, fn.Substring(0, fn.LastIndexOfDirSep())));
                                entry.ExtractToFile(Path.Combine(fmInstalledPath, fn), overwrite: true);
                            }
                        }
                    }
                    else
                    {
                        string savesDirS = fmIsT3 ? _t3SavesDirS : _darkSavesDirS;
                        if (restoreSavesAndScreensOnly)
                        {
                            for (int i = 0; i < filesCount; i++)
                            {
                                var entry = archive.Entries[i];
                                string fn = entry.FullName;

                                if (fn.Length > 0 && !fn[fn.Length - 1].IsDirSep() &&
                                    (fn.PathStartsWithI(savesDirS) ||
                                     fn.PathStartsWithI(_darkNetSavesDirS) ||
                                     fn.PathStartsWithI(_screensDirS) ||
                                     (fm.Game == Game.SS2 &&
                                      (_ss2SaveDirsInZipRegex.IsMatch(fn) || fn.PathStartsWithI(_ss2CurrentDirS)))))
                                {
                                    Directory.CreateDirectory(Path.Combine(fmInstalledPath, fn.Substring(0, fn.LastIndexOfDirSep())));
                                    entry.ExtractToFile(Path.Combine(fmInstalledPath, fn), overwrite: true);
                                }
                            }
                        }
                        else
                        {
                            var fmSelInf = archive.GetEntry(Paths.FMSelInf);
                            // Cap the length, cause... well, nobody's going to put a 500MB binary file named
                            // fmsel.inf, but hey...
                            // Null check required because GetEntry() can return null
                            if (fmSelInf?.Length < ByteSize.MB * 10)
                            {
                                using var eo = fmSelInf.Open();
                                using var sr = new StreamReader(eo);

                                string?line;
                                while ((line = sr.ReadLine()) != null)
                                {
                                    bool startsWithRemoveFile = line.StartsWithFast_NoNullChecks(_removeFileEq);
                                    bool startsWithRemoveDir  = false;
                                    if (!startsWithRemoveFile)
                                    {
                                        startsWithRemoveDir = line.StartsWithFast_NoNullChecks(_removeDirEq);
                                    }

                                    if (!startsWithRemoveFile && !startsWithRemoveDir)
                                    {
                                        continue;
                                    }

                                    string val = line.Substring(startsWithRemoveFile ? 11 : 10).Trim();
                                    if (!val.PathStartsWithI(savesDirS) &&
                                        !val.PathStartsWithI(_darkNetSavesDirS) &&
                                        !val.PathStartsWithI(_screensDirS) &&
                                        (fm.Game != Game.SS2 ||
                                         (!_ss2SaveDirsInZipRegex.IsMatch(val) && !val.PathStartsWithI(_ss2CurrentDirS))) &&
                                        !val.PathEqualsI(Paths.FMSelInf) &&
                                        !val.PathEqualsI(_startMisSav) &&
                                        // Reject malformed and/or maliciously formed paths - we're going to
                                        // delete these files, and we don't want to delete anything outside
                                        // the FM folder
                                        !val.StartsWithDirSep() &&
                                        !val.Contains(':') &&
                                        // @DIRSEP: Critical: Check both / and \ here because we have no dirsep-agnostic string.Contains()
                                        !val.Contains("./") &&
                                        !val.Contains(".\\"))
                                    {
                                        if (startsWithRemoveFile)
                                        {
                                            fileExcludes.Add(val);
                                        }
                                        //else
                                        //{
                                        //    dirExcludes.Add(val);
                                        //}
                                    }
                                }
                            }

                            for (int i = 0; i < filesCount; i++)
                            {
                                var f     = archive.Entries[i];
                                string fn = f.FullName;

                                if (fn.PathEqualsI(Paths.FMSelInf) ||
                                    fn.PathEqualsI(_startMisSav) ||
                                    (fn.Length > 0 && fn[fn.Length - 1].IsDirSep()) ||
                                    fileExcludes.PathContainsI(fn))
                                {
                                    continue;
                                }

                                if (fn.ContainsDirSep())
                                {
                                    Directory.CreateDirectory(Path.Combine(fmInstalledPath, fn.Substring(0, fn.LastIndexOfDirSep())));
                                }

                                f.ExtractToFile(Path.Combine(fmInstalledPath, fn), overwrite: true);
                            }
                        }
                    }
                }

                if (!restoreSavesAndScreensOnly)
                {
                    foreach (string f in Directory.GetFiles(fmInstalledPath, "*", SearchOption.AllDirectories))
                    {
                        if (fileExcludes.PathContainsI(f.Substring(fmInstalledPath.Length).Trim(CA_BS_FS)))
                        {
                            // TODO: Deleted dirs are not detected, they're detected as "delete every file in this dir"
                            // If we have crf files replacing dirs, the empty dir will override the crf. We want
                            // to store whether dirs were actually removed so we can remove them again.
                            File.Delete(f);
                        }
                    }

                    // Disabled till this is working completely
#if false
                    // Crappy hack method
                    var crfs          = Directory.GetFiles(fmInstalledPath, "*.crf", SearchOption.TopDirectoryOnly);
                    var dirRemoveList = new List <string>();
                    foreach (string d in Directory.GetDirectories(fmInstalledPath, "*", SearchOption.TopDirectoryOnly))
                    {
                        string dt = d.GetDirNameFast();
                        if (Directory.GetFiles(d, "*", SearchOption.AllDirectories).Length == 0)
                        {
                            for (int i = 0; i < crfs.Length; i++)
                            {
                                string ft = crfs[i].GetFileNameFast().RemoveExtension();
                                if (ft.PathEqualsI(dt))
                                {
                                    dirRemoveList.Add(d);
                                }
                            }
                        }
                    }

                    if (dirRemoveList.Count > 0)
                    {
                        for (int i = 0; i < dirRemoveList.Count; i++)
                        {
                            Directory.Delete(dirRemoveList[i], recursive: true);
                        }
                    }

                    // Proper method
                    foreach (string d in Directory.GetDirectories(fmInstalledPath, "*", SearchOption.AllDirectories))
                    {
                        if (dirExcludes.PathContainsI(d.Substring(fmInstalledPath.Length).Trim(CA_BS_FS)))
                        {
                            Directory.Delete(d, recursive: true);
                        }
                    }
#endif
                }
                if (fileToUse.DarkLoader)
                {
                    string dlOrigBakDir = Path.Combine(Config.FMsBackupPath, Paths.DarkLoaderSaveOrigBakDir);
                    Directory.CreateDirectory(dlOrigBakDir);
                    File.Move(fileToUse.Name, Path.Combine(dlOrigBakDir, fileToUse.Name.GetFileNameFast()));
                }
            });
        }
Esempio n. 2
0
        // MT: On startup only, this is run in parallel with MainForm.ctor and .InitThreadable()
        // So don't touch anything the other touches: anything affecting the view.
        // @CAN_RUN_BEFORE_VIEW_INIT
        private static List <int> FindInternal(bool startup)
        {
            if (!startup)
            {
                // Make sure we don't lose anything when we re-find!
                // NOTE: This also writes out TagsStrings and then reads them back in and syncs them with Tags.
                // Critical that that gets done.
                Ini.WriteFullFMDataIni();

                // Do this every time we modify FMsViewList in realtime, to prevent FMsDGV from redrawing from
                // the list when it's in an indeterminate state (which can cause a selection change (bad) and/or
                // a visible change of the list (not really bad but unprofessional looking)).
                // MT: Don't do this on startup because we're running in parallel with the form new/init in that case.
                Core.View.SetRowCount(0);
            }

            // Init or reinit - must be deep-copied or changes propagate back because reference types
            // MT: This is thread-safe, the view ctor and InitThreadable() doesn't touch it.
            PresetTags.DeepCopyTo(GlobalTags);

            #region Back up lists and read FM data file

            // Copy FMs to backup lists before clearing, in case we can't read the ini file. We don't want to end
            // up with a blank or incomplete list and then glibly save it out later.
            FanMission[] backupList = new FanMission[FMDataIniList.Count];
            FMDataIniList.CopyTo(backupList);

            FanMission[] viewBackupList = new FanMission[FMsViewList.Count];
            FMsViewList.CopyTo(viewBackupList);

            FMDataIniList.Clear();
            FMsViewList.Clear();

            bool fmDataIniExists = File.Exists(Paths.FMDataIni);

            if (fmDataIniExists)
            {
                try
                {
                    Ini.ReadFMDataIni(Paths.FMDataIni, FMDataIniList);
                }
                catch (Exception ex)
                {
                    Log("Exception reading FM data ini", ex);
                    if (startup)
                    {
                        // Language will be loaded by this point
                        Dialogs.ShowError(LText.AlertMessages.FindFMs_ExceptionReadingFMDataIni);
                        Core.EnvironmentExitDoShutdownTasks(1);
                    }
                    else
                    {
                        FMDataIniList.ClearAndAdd(backupList);
                        FMsViewList.ClearAndAdd(viewBackupList);
                        return(new List <int>());
                    }
                }
            }

            #endregion

            #region Get installed dirs from disk

            // Could check inside the folder for a .mis file to confirm it's really an FM folder, but that's
            // horrendously expensive. Talking like eight seconds vs. < 4ms for the 1098 set. Weird.
            var perGameInstFMDirsList      = new List <List <string> >(SupportedGameCount);
            var perGameInstFMDirsDatesList = new List <List <DateTime> >(SupportedGameCount);

            for (int gi = 0; gi < SupportedGameCount; gi++)
            {
                // NOTE! Make sure this list ends up with SupportedGameCount items in it. Just in case I change
                // the loop or something.
                perGameInstFMDirsList.Add(new List <string>());
                perGameInstFMDirsDatesList.Add(new List <DateTime>());

                string instPath = Config.GetFMInstallPath((GameIndex)gi);
                if (Directory.Exists(instPath))
                {
                    try
                    {
                        var dirs = FastIO.GetDirsTopOnly_FMs(instPath, "*", out List <DateTime> dateTimes);
                        for (int di = 0; di < dirs.Count; di++)
                        {
                            string d = dirs[di];
                            if (!d.EqualsI(Paths.FMSelCache))
                            {
                                perGameInstFMDirsList[gi].Add(d);
                                perGameInstFMDirsDatesList[gi].Add(dateTimes[di]);
                            }
                        }
                    }
                    catch (Exception ex)
                    {
                        Log("Exception getting directories in " + instPath, ex);
                    }
                }
            }

            #endregion

            #region Get archives from disk

            var fmArchivesAndDatesDict = new DictionaryI <DateTime>();

            var  archivePaths = FMArchives.GetFMArchivePaths();
            bool onlyOnePath  = archivePaths.Count == 1;
            for (int ai = 0; ai < archivePaths.Count; ai++)
            {
                try
                {
                    // Returns filenames only (not full paths)
                    var files = FastIO.GetFilesTopOnly_FMs(archivePaths[ai], "*", out List <DateTime> dateTimes);
                    for (int fi = 0; fi < files.Count; fi++)
                    {
                        string f = files[fi];
                        // Do this first because it should be faster than a dictionary lookup
                        if (!f.ExtIsArchive())
                        {
                            continue;
                        }
                        // NOTE: We do a ContainsKey check to keep behavior the same as previously. When we use
                        // dict[key] = value, it _replaces_ the value with the new one every time. What we want
                        // is for it to just not touch it at all if the key is already in there. This check does
                        // technically slow it down some, but the actual perf degradation is negligible. And we
                        // still avoid the n-squared 1.6-million-call nightmare we get with ~1600 FMs in the list.
                        // Nevertheless, we can avoid even this small extra cost if we only have one FM archive
                        // path, so no harm in keeping the only-one-path check.
                        if ((onlyOnePath || !fmArchivesAndDatesDict.ContainsKey(f)) &&
                            // @DIRSEP: These are filename only, no need for PathContainsI()
                            !f.ContainsI(Paths.FMSelBak))
                        {
                            fmArchivesAndDatesDict[f] = dateTimes[fi];
                        }
                    }
                }
                catch (Exception ex)
                {
                    Log("Exception getting files in " + archivePaths[ai], ex);
                }
            }

            int fmArchivesAndDatesDictLen = fmArchivesAndDatesDict.Count;
            // PERF_TODO: May want to keep these as dicts later or change other vars to dicts
            string[]   fmArchives      = new string[fmArchivesAndDatesDictLen];
            DateTime[] fmArchivesDates = new DateTime[fmArchivesAndDatesDictLen];
            {
                int i = 0;
                foreach (var item in fmArchivesAndDatesDict)
                {
                    fmArchives[i]      = item.Key;
                    fmArchivesDates[i] = item.Value;
                    i++;
                }
            }

            #endregion

            #region Build FanMission objects from installed dirs

            var perGameFMsList = new List <List <FanMission> >(SupportedGameCount);

            for (int gi = 0; gi < SupportedGameCount; gi++)
            {
                // NOTE! List must have SupportedGameCount items in it
                perGameFMsList.Add(new List <FanMission>());

                for (int di = 0; di < perGameInstFMDirsList[gi].Count; di++)
                {
                    perGameFMsList[gi].Add(new FanMission
                    {
                        InstalledDir = perGameInstFMDirsList[gi][di],
                        Game         = GameIndexToGame((GameIndex)gi),
                        Installed    = true
                    });
                }
            }

            #endregion

            MergeNewArchiveFMs(fmArchives, fmArchivesDates);

            int instInitCount = FMDataIniList.Count;
            for (int i = 0; i < SupportedGameCount; i++)
            {
                var curGameInstFMsList = perGameFMsList[i];
                if (curGameInstFMsList.Count > 0)
                {
                    MergeNewInstalledFMs(curGameInstFMsList, perGameInstFMDirsDatesList[i], instInitCount);
                }
            }

            SetArchiveNames(fmArchives);

            SetInstalledNames();

            // Super quick-n-cheap hack for perf: So we don't have to iterate the whole list looking for unscanned
            // FMs. This will contain indexes into FMDataIniList (not FMsViewList!)
            var fmsViewListUnscanned = new List <int>(FMDataIniList.Count);

            BuildViewList(fmArchives, perGameInstFMDirsList, fmsViewListUnscanned);

            return(fmsViewListUnscanned);

            /*
             * TODO: There's an extreme corner case where duplicate FMs can appear in the list
             * It's so unlikely it's almost not worth worrying about, but here's the scenario:
             * -The FM is installed by hand and not truncated
             * -The FM is not in the list
             * -A matching archive exists for the FM
             * In this scenario, the FM is added twice to the list, once with the full installed folder name and
             * NoArchive set to true, and once with a truncated installed dir name, the correct archive name, and
             * NoArchive not present (false).
             * The code in here is so crazy-go-nuts I can't even find where this is happening. But putting this
             * note down for the future.
             */
        }
Esempio n. 3
0
        internal static async Task <bool> InstallFM(FanMission fm)
        {
            #region Checks

            AssertR(!fm.Installed, "fm.Installed == false");

            if (!GameIsKnownAndSupported(fm.Game))
            {
                Log("FM game type is unknown or unsupported.\r\n" +
                    "FM: " + (!fm.Archive.IsEmpty() ? fm.Archive : fm.InstalledDir) + "\r\n" +
                    "FM game was: " + fm.Game);
                Dialogs.ShowError(ErrorText.FMGameTypeUnknownOrUnsupported);
                return(false);
            }

            GameIndex gameIndex = GameToGameIndex(fm.Game);

            string fmArchivePath = FMArchives.FindFirstMatch(fm.Archive);

            if (fmArchivePath.IsEmpty())
            {
                Log("FM archive field was empty; this means an archive was not found for it on the last search.\r\n" +
                    "FM: " + (!fm.Archive.IsEmpty() ? fm.Archive : fm.InstalledDir) + "\r\n" +
                    "FM game was: " + fm.Game);
                Dialogs.ShowError(LText.AlertMessages.Install_ArchiveNotFound);
                return(false);
            }

            string gameExe  = Config.GetGameExe(gameIndex);
            string gameName = GetLocalizedGameName(gameIndex);
            if (!File.Exists(gameExe))
            {
                Log("Game executable not found.\r\n" +
                    "Game executable: " + gameExe);
                Dialogs.ShowError(gameName + ":\r\n" +
                                  LText.AlertMessages.Install_ExecutableNotFound);
                return(false);
            }

            string instBasePath = Config.GetFMInstallPath(gameIndex);

            if (!Directory.Exists(instBasePath))
            {
                Log("FM install path not found.\r\n" +
                    "FM: " + (!fm.Archive.IsEmpty() ? fm.Archive : fm.InstalledDir) + "\r\n" +
                    "FM game was: " + fm.Game + "\r\n" +
                    "FM install path: " + instBasePath
                    );
                Dialogs.ShowError(gameName + ":\r\n" +
                                  LText.AlertMessages.Install_FMInstallPathNotFound);
                return(false);
            }

            if (GameIsRunning(gameExe))
            {
                Dialogs.ShowAlert(gameName + ":\r\n" +
                                  LText.AlertMessages.Install_GameIsRunning, LText.AlertMessages.Alert);
                return(false);
            }

            #endregion

            string fmInstalledPath = Path.Combine(instBasePath, fm.InstalledDir);

            _extractCts = new CancellationTokenSource();

            Core.View.ShowProgressBox(ProgressTask.InstallFM);

            // Framework zip extracting is much faster, so use it if possible
            bool canceled = !await(fmArchivePath.ExtIsZip()
                ? Task.Run(() => InstallFMZip(fmArchivePath, fmInstalledPath))
                : Task.Run(() => InstallFMSevenZip(fmArchivePath, fmInstalledPath)));

            if (canceled)
            {
                Core.View.SetCancelingFMInstall();
                await Task.Run(() =>
                {
                    try
                    {
                        Directory.Delete(fmInstalledPath, recursive: true);
                    }
                    catch (Exception ex)
                    {
                        // @BetterErrors(InstallFM() - install cancellation (folder deletion) failed)
                        Log("Unable to delete FM installed directory " + fmInstalledPath, ex);
                    }
                });

                Core.View.HideProgressBox();
                return(false);
            }

            fm.Installed = true;

            Ini.WriteFullFMDataIni();

            try
            {
                using var sw = new StreamWriter(Path.Combine(fmInstalledPath, Paths.FMSelInf), append: false);
                await sw.WriteLineAsync("Name=" + fm.InstalledDir);

                await sw.WriteLineAsync("Archive=" + fm.Archive);
            }
            catch (Exception ex)
            {
                Log("Couldn't create " + Paths.FMSelInf + " in " + fmInstalledPath, ex);
            }

            // Only Dark engine games need audio conversion
            if (GameIsDark(gameIndex))
            {
                try
                {
                    Core.View.ShowProgressBox(ProgressTask.ConvertFiles);

                    // Dark engine games can't play MP3s, so they must be converted in all cases.
                    // This one won't be called anywhere except during install, because it always runs during
                    // install so there's no need to make it optional elsewhere. So we don't need to have a
                    // check bool or anything.
                    await FMAudio.ConvertToWAVs(fm, AudioConvert.MP3ToWAV, false);

                    if (Config.ConvertOGGsToWAVsOnInstall)
                    {
                        await FMAudio.ConvertToWAVs(fm, AudioConvert.OGGToWAV, false);
                    }
                    if (Config.ConvertWAVsTo16BitOnInstall)
                    {
                        await FMAudio.ConvertToWAVs(fm, AudioConvert.WAVToWAV16, false);
                    }
                }
                catch (Exception ex)
                {
                    Log("Exception in audio conversion", ex);
                }
            }

            // Don't be lazy about this; there can be no harm and only benefits by doing it right away
            GenerateMissFlagFileIfRequired(fm);

            // TODO: Put up a "Restoring saves and screenshots" box here to avoid the "converting files" one lasting beyond its time?
            try
            {
                await RestoreFM(fm);
            }
            catch (Exception ex)
            {
                Log(ex: ex);
            }
            finally
            {
                Core.View.HideProgressBox();
            }

            // Not doing RefreshFM(rowOnly: true) because that wouldn't update the install/uninstall buttons
            Core.View.RefreshFM(fm);

            return(true);
        }
Esempio n. 4
0
        GetFMSupportedLanguagesFromArchive(string archiveName, bool earlyOutOnEnglish)
        {
            // @DIRSEP: '/' conversion in here due to string.IndexOf()

            (bool, List <string>)failed = (false, new List <string>());

            string archivePath = FMArchives.FindFirstMatch(archiveName);

            if (archivePath.IsEmpty())
            {
                return(failed);
            }

            var ret = new List <string>(Supported.Length);

            bool[] FoundLangInArchive = new bool[Supported.Length];
            // Pre-concat each string only once for perf
            string[] SLangsFSPrefixed = new string[Supported.Length];
            for (int i = 0; i < Supported.Length; i++)
            {
                SLangsFSPrefixed[i] = "/" + Supported[i];
            }

            FMScanner.FastZipReader.ZipArchiveFast?zipArchive = null;
            SevenZipExtractor?sevenZipArchive = null;

            try
            {
                bool fmIsZip = archivePath.ExtIsZip();

                if (fmIsZip)
                {
                    zipArchive = new FMScanner.FastZipReader.ZipArchiveFast(File.OpenRead(archivePath));
                }
                else
                {
                    sevenZipArchive = new SevenZipExtractor(archivePath);
                }

                int filesCount = fmIsZip ? zipArchive !.Entries.Count : (int)sevenZipArchive !.FilesCount;
                for (int i = 0; i < filesCount; i++)
                {
                    string fn = fmIsZip
                                // ZipArchiveFast guarantees full names to never contain backslashes
                        ? zipArchive !.Entries[i].FullName
                                // For some reason ArchiveFileData[i].FileName is like 20x faster than ArchiveFileNames[i]
                        : sevenZipArchive !.ArchiveFileData[i].FileName.ToForwardSlashes();

                    for (int j = 0; j < Supported.Length; j++)
                    {
                        string sl = Supported[j];
                        if (!FoundLangInArchive[j])
                        {
                            // Do as few string operations as humanly possible
                            int index = fn.IndexOf(SLangsFSPrefixed[j], StringComparison.OrdinalIgnoreCase);
                            if (index < 1)
                            {
                                continue;
                            }

                            if ((fn.Length > index + sl.Length + 1 && fn[index + sl.Length + 1] == '/') ||
                                (index == (fn.Length - sl.Length) - 1))
                            {
                                if (earlyOutOnEnglish && j == 0)
                                {
                                    return(true, new List <string> {
                                        "English"
                                    });
                                }
                                ret.Add(sl);
                                FoundLangInArchive[j] = true;
                            }
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                Log("Scanning archive '" + archivePath + "' for languages failed.", ex);
                return(false, new List <string>());
            }
            finally
            {
                zipArchive?.Dispose();
                sevenZipArchive?.Dispose();
            }

            return(true, ret);
        }