607 lines
23 KiB
C#
607 lines
23 KiB
C#
using K4os.Compression.LZ4.Legacy;
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using LightlessSync.Interop.Ipc;
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using LightlessSync.LightlessConfiguration;
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using LightlessSync.Services.Mediator;
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using LightlessSync.Utils;
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using Microsoft.Extensions.Hosting;
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using Microsoft.Extensions.Logging;
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using System.Collections.Concurrent;
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using System.Globalization;
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using System.Text;
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namespace LightlessSync.FileCache;
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public sealed class FileCacheManager : IHostedService
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{
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public const string CachePrefix = "{cache}";
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public const string CsvSplit = "|";
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public const string PenumbraPrefix = "{penumbra}";
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private readonly LightlessConfigService _configService;
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private readonly LightlessMediator _lightlessMediator;
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private readonly string _csvPath;
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private readonly ConcurrentDictionary<string, ConcurrentDictionary<string, FileCacheEntity>> _fileCaches = new(StringComparer.Ordinal);
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private readonly ConcurrentDictionary<string, FileCacheEntity> _fileCachesByPrefixedPath = new(StringComparer.OrdinalIgnoreCase);
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private readonly SemaphoreSlim _getCachesByPathsSemaphore = new(1, 1);
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private readonly Lock _fileWriteLock = new();
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private readonly IpcManager _ipcManager;
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private readonly ILogger<FileCacheManager> _logger;
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public string CacheFolder => _configService.Current.CacheFolder;
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public FileCacheManager(ILogger<FileCacheManager> logger, IpcManager ipcManager, LightlessConfigService configService, LightlessMediator lightlessMediator)
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{
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_logger = logger;
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_ipcManager = ipcManager;
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_configService = configService;
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_lightlessMediator = lightlessMediator;
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_csvPath = Path.Combine(configService.ConfigurationDirectory, "FileCache.csv");
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}
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private string CsvBakPath => _csvPath + ".bak";
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private static string NormalizeSeparators(string path)
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{
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return path.Replace("/", "\\", StringComparison.Ordinal)
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.Replace("\\\\", "\\", StringComparison.Ordinal);
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}
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private static string NormalizePrefixedPathKey(string prefixedPath)
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{
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if (string.IsNullOrEmpty(prefixedPath))
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{
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return string.Empty;
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}
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return NormalizeSeparators(prefixedPath).ToLowerInvariant();
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}
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private string NormalizeToPrefixedPath(string path)
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{
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if (string.IsNullOrEmpty(path)) return string.Empty;
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var normalized = NormalizeSeparators(path);
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if (normalized.StartsWith(CachePrefix, StringComparison.OrdinalIgnoreCase) ||
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normalized.StartsWith(PenumbraPrefix, StringComparison.OrdinalIgnoreCase))
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{
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return NormalizePrefixedPathKey(normalized);
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}
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var penumbraDir = _ipcManager.Penumbra.ModDirectory;
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if (!string.IsNullOrEmpty(penumbraDir))
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{
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var normalizedPenumbra = NormalizeSeparators(penumbraDir);
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var replacement = normalizedPenumbra.EndsWith("\\", StringComparison.Ordinal)
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? PenumbraPrefix + "\\"
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: PenumbraPrefix;
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normalized = normalized.Replace(normalizedPenumbra, replacement, StringComparison.OrdinalIgnoreCase);
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}
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var cacheFolder = _configService.Current.CacheFolder;
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if (!string.IsNullOrEmpty(cacheFolder))
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{
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var normalizedCache = NormalizeSeparators(cacheFolder);
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var replacement = normalizedCache.EndsWith("\\", StringComparison.Ordinal)
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? CachePrefix + "\\"
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: CachePrefix;
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normalized = normalized.Replace(normalizedCache, replacement, StringComparison.OrdinalIgnoreCase);
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}
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return NormalizePrefixedPathKey(normalized);
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}
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public FileCacheEntity? CreateCacheEntry(string path)
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{
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FileInfo fi = new(path);
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if (!fi.Exists) return null;
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_logger.LogTrace("Creating cache entry for {path}", path);
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return CreateFileEntity(_configService.Current.CacheFolder.ToLowerInvariant(), CachePrefix, fi);
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}
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public FileCacheEntity? CreateFileEntry(string path)
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{
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FileInfo fi = new(path);
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if (!fi.Exists) return null;
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_logger.LogTrace("Creating file entry for {path}", path);
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return CreateFileEntity(_ipcManager.Penumbra.ModDirectory!.ToLowerInvariant(), PenumbraPrefix, fi);
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}
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private FileCacheEntity? CreateFileEntity(string directory, string prefix, FileInfo fi)
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{
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var fullName = fi.FullName.ToLowerInvariant();
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if (!fullName.Contains(directory, StringComparison.Ordinal)) return null;
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string prefixedPath = fullName.Replace(directory, prefix + "\\", StringComparison.Ordinal).Replace("\\\\", "\\", StringComparison.Ordinal);
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return CreateFileCacheEntity(fi, prefixedPath);
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}
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public List<FileCacheEntity> GetAllFileCaches() => _fileCaches.Values.SelectMany(v => v.Values.Where(e => e != null)).ToList();
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public List<FileCacheEntity> GetAllFileCachesByHash(string hash, bool ignoreCacheEntries = false, bool validate = true)
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{
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List<FileCacheEntity> output = [];
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if (_fileCaches.TryGetValue(hash, out var fileCacheEntities))
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{
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foreach (var fileCache in fileCacheEntities.Values.Where(c => !ignoreCacheEntries || !c.IsCacheEntry).ToList())
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{
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if (!validate)
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{
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output.Add(fileCache);
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}
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else
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{
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var validated = GetValidatedFileCache(fileCache);
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if (validated != null)
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{
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output.Add(validated);
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}
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}
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}
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}
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return output;
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}
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public Task<List<FileCacheEntity>> ValidateLocalIntegrity(IProgress<(int, int, FileCacheEntity)> progress, CancellationToken cancellationToken)
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{
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_lightlessMediator.Publish(new HaltScanMessage(nameof(ValidateLocalIntegrity)));
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_logger.LogInformation("Validating local storage");
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var cacheEntries = _fileCaches.Values.SelectMany(v => v.Values.Where(e => e != null)).Where(v => v.IsCacheEntry).ToList();
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List<FileCacheEntity> brokenEntities = [];
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int i = 0;
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foreach (var fileCache in cacheEntries)
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{
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if (cancellationToken.IsCancellationRequested) break;
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_logger.LogInformation("Validating {file}", fileCache.ResolvedFilepath);
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progress.Report((i, cacheEntries.Count, fileCache));
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i++;
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if (!File.Exists(fileCache.ResolvedFilepath))
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{
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brokenEntities.Add(fileCache);
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continue;
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}
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try
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{
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var computedHash = Crypto.GetFileHash(fileCache.ResolvedFilepath);
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if (!string.Equals(computedHash, fileCache.Hash, StringComparison.Ordinal))
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{
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_logger.LogInformation("Failed to validate {file}, got hash {computedHash}, expected hash {hash}", fileCache.ResolvedFilepath, computedHash, fileCache.Hash);
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brokenEntities.Add(fileCache);
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}
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}
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catch (Exception e)
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{
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_logger.LogWarning(e, "Error during validation of {file}", fileCache.ResolvedFilepath);
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brokenEntities.Add(fileCache);
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}
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}
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foreach (var brokenEntity in brokenEntities)
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{
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RemoveHashedFile(brokenEntity.Hash, brokenEntity.PrefixedFilePath);
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try
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{
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File.Delete(brokenEntity.ResolvedFilepath);
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}
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catch (Exception ex)
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{
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_logger.LogWarning(ex, "Could not delete {file}", brokenEntity.ResolvedFilepath);
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}
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}
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_lightlessMediator.Publish(new ResumeScanMessage(nameof(ValidateLocalIntegrity)));
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return Task.FromResult(brokenEntities);
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}
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public string GetCacheFilePath(string hash, string extension)
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{
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return Path.Combine(_configService.Current.CacheFolder, hash + "." + extension);
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}
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public async Task<(string, byte[])> GetCompressedFileData(string fileHash, CancellationToken uploadToken)
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{
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var fileCache = GetFileCacheByHash(fileHash)!.ResolvedFilepath;
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return (fileHash, LZ4Wrapper.WrapHC(await File.ReadAllBytesAsync(fileCache, uploadToken).ConfigureAwait(false), 0,
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(int)new FileInfo(fileCache).Length));
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}
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public FileCacheEntity? GetFileCacheByHash(string hash)
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{
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if (_fileCaches.TryGetValue(hash, out var entries))
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{
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var item = entries.Values
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.OrderBy(p => p.PrefixedFilePath.Contains(PenumbraPrefix, StringComparison.Ordinal) ? 0 : 1)
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.FirstOrDefault();
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if (item != null)
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{
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return GetValidatedFileCache(item);
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}
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}
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return null;
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}
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private FileCacheEntity? GetFileCacheByPath(string path)
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{
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var normalizedPrefixedPath = NormalizeToPrefixedPath(path);
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if (string.IsNullOrEmpty(normalizedPrefixedPath))
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{
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return null;
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}
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if (_fileCachesByPrefixedPath.TryGetValue(normalizedPrefixedPath, out var entry))
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{
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return GetValidatedFileCache(entry);
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}
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_logger.LogDebug("Found no entries for {path}", normalizedPrefixedPath);
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if (normalizedPrefixedPath.Contains(CachePrefix, StringComparison.Ordinal))
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{
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return CreateCacheEntry(path);
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}
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return CreateFileEntry(path) ?? CreateCacheEntry(path);
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}
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public Dictionary<string, FileCacheEntity?> GetFileCachesByPaths(string[] paths)
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{
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_getCachesByPathsSemaphore.Wait();
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try
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{
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var result = new Dictionary<string, FileCacheEntity?>(StringComparer.OrdinalIgnoreCase);
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var seenNormalized = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
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foreach (var originalPath in paths)
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{
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if (string.IsNullOrEmpty(originalPath))
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{
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result[originalPath] = null;
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continue;
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}
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var normalized = NormalizeToPrefixedPath(originalPath);
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if (seenNormalized.Add(normalized))
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{
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if (!string.IsNullOrEmpty(normalized))
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{
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_logger.LogDebug("Normalized path {cleaned}", normalized);
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}
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}
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else if (!string.IsNullOrEmpty(normalized))
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{
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_logger.LogWarning("Duplicate normalized path detected: {cleaned}", normalized);
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}
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if (_fileCachesByPrefixedPath.TryGetValue(normalized, out var entity))
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{
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result[originalPath] = GetValidatedFileCache(entity);
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continue;
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}
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FileCacheEntity? created = null;
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if (normalized.Contains(CachePrefix, StringComparison.Ordinal))
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{
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created = CreateCacheEntry(originalPath);
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}
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else if (normalized.Contains(PenumbraPrefix, StringComparison.Ordinal))
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{
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created = CreateFileEntry(originalPath);
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}
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else
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{
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created = CreateFileEntry(originalPath) ?? CreateCacheEntry(originalPath);
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}
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result[originalPath] = created;
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}
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return result;
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}
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finally
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{
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_getCachesByPathsSemaphore.Release();
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}
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}
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public void RemoveHashedFile(string hash, string prefixedFilePath)
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{
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var normalizedPath = NormalizePrefixedPathKey(prefixedFilePath);
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if (_fileCaches.TryGetValue(hash, out var caches))
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{
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_logger.LogTrace("Removing from DB: {hash} => {path}", hash, prefixedFilePath);
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if (caches.TryRemove(normalizedPath, out var removedEntity))
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{
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_logger.LogTrace("Removed from DB: {hash} => {path}", hash, removedEntity.PrefixedFilePath);
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}
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if (caches.IsEmpty)
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{
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_fileCaches.TryRemove(hash, out _);
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}
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}
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_fileCachesByPrefixedPath.TryRemove(normalizedPath, out _);
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}
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public void UpdateHashedFile(FileCacheEntity fileCache, bool computeProperties = true)
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{
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_logger.LogTrace("Updating hash for {path}", fileCache.ResolvedFilepath);
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var oldHash = fileCache.Hash;
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var prefixedPath = fileCache.PrefixedFilePath;
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if (computeProperties)
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{
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var fi = new FileInfo(fileCache.ResolvedFilepath);
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fileCache.Size = fi.Length;
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fileCache.CompressedSize = null;
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fileCache.Hash = Crypto.GetFileHash(fileCache.ResolvedFilepath);
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fileCache.LastModifiedDateTicks = fi.LastWriteTimeUtc.Ticks.ToString(CultureInfo.InvariantCulture);
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}
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RemoveHashedFile(oldHash, prefixedPath);
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AddHashedFile(fileCache);
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}
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public (FileState State, FileCacheEntity FileCache) ValidateFileCacheEntity(FileCacheEntity fileCache)
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{
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fileCache = ReplacePathPrefixes(fileCache);
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FileInfo fi = new(fileCache.ResolvedFilepath);
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if (!fi.Exists)
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{
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return (FileState.RequireDeletion, fileCache);
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}
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if (!string.Equals(fi.LastWriteTimeUtc.Ticks.ToString(CultureInfo.InvariantCulture), fileCache.LastModifiedDateTicks, StringComparison.Ordinal))
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{
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return (FileState.RequireUpdate, fileCache);
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}
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return (FileState.Valid, fileCache);
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}
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public void WriteOutFullCsv()
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{
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lock (_fileWriteLock)
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{
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StringBuilder sb = new();
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foreach (var entry in _fileCaches.Values.SelectMany(k => k.Values).OrderBy(f => f.PrefixedFilePath, StringComparer.OrdinalIgnoreCase))
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{
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sb.AppendLine(entry.CsvEntry);
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}
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if (File.Exists(_csvPath))
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{
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File.Copy(_csvPath, CsvBakPath, overwrite: true);
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}
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try
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{
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File.WriteAllText(_csvPath, sb.ToString());
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File.Delete(CsvBakPath);
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}
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catch
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{
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File.WriteAllText(CsvBakPath, sb.ToString());
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}
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}
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}
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internal FileCacheEntity MigrateFileHashToExtension(FileCacheEntity fileCache, string ext)
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{
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try
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{
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RemoveHashedFile(fileCache.Hash, fileCache.PrefixedFilePath);
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var extensionPath = fileCache.ResolvedFilepath.ToUpper(CultureInfo.InvariantCulture) + "." + ext;
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File.Move(fileCache.ResolvedFilepath, extensionPath, overwrite: true);
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var newHashedEntity = new FileCacheEntity(fileCache.Hash, fileCache.PrefixedFilePath + "." + ext, DateTime.UtcNow.Ticks.ToString(CultureInfo.InvariantCulture));
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newHashedEntity.SetResolvedFilePath(extensionPath);
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AddHashedFile(newHashedEntity);
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_logger.LogTrace("Migrated from {oldPath} to {newPath}", fileCache.ResolvedFilepath, newHashedEntity.ResolvedFilepath);
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return newHashedEntity;
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}
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catch (Exception ex)
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{
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AddHashedFile(fileCache);
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_logger.LogWarning(ex, "Failed to migrate entity {entity}", fileCache.PrefixedFilePath);
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return fileCache;
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}
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}
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private void AddHashedFile(FileCacheEntity fileCache)
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{
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var normalizedPath = NormalizePrefixedPathKey(fileCache.PrefixedFilePath);
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var entries = _fileCaches.GetOrAdd(fileCache.Hash, _ => new ConcurrentDictionary<string, FileCacheEntity>(StringComparer.OrdinalIgnoreCase));
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entries[normalizedPath] = fileCache;
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_fileCachesByPrefixedPath[normalizedPath] = fileCache;
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}
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private FileCacheEntity? CreateFileCacheEntity(FileInfo fileInfo, string prefixedPath, string? hash = null)
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{
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hash ??= Crypto.GetFileHash(fileInfo.FullName);
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var entity = new FileCacheEntity(hash, prefixedPath, fileInfo.LastWriteTimeUtc.Ticks.ToString(CultureInfo.InvariantCulture), fileInfo.Length);
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entity = ReplacePathPrefixes(entity);
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AddHashedFile(entity);
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lock (_fileWriteLock)
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{
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File.AppendAllLines(_csvPath, new[] { entity.CsvEntry });
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}
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var result = GetFileCacheByPath(fileInfo.FullName);
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_logger.LogTrace("Creating cache entity for {name} success: {success}", fileInfo.FullName, (result != null));
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return result;
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}
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private FileCacheEntity? GetValidatedFileCache(FileCacheEntity fileCache)
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{
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var resultingFileCache = ReplacePathPrefixes(fileCache);
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//_logger.LogTrace("Validating {path}", fileCache.PrefixedFilePath);
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resultingFileCache = Validate(resultingFileCache);
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return resultingFileCache;
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}
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private FileCacheEntity ReplacePathPrefixes(FileCacheEntity fileCache)
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{
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if (fileCache.PrefixedFilePath.StartsWith(PenumbraPrefix, StringComparison.OrdinalIgnoreCase))
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{
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fileCache.SetResolvedFilePath(fileCache.PrefixedFilePath.Replace(PenumbraPrefix, _ipcManager.Penumbra.ModDirectory, StringComparison.Ordinal));
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}
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else if (fileCache.PrefixedFilePath.StartsWith(CachePrefix, StringComparison.OrdinalIgnoreCase))
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{
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fileCache.SetResolvedFilePath(fileCache.PrefixedFilePath.Replace(CachePrefix, _configService.Current.CacheFolder, StringComparison.Ordinal));
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}
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return fileCache;
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}
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private FileCacheEntity? Validate(FileCacheEntity fileCache)
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{
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if (string.IsNullOrWhiteSpace(fileCache.ResolvedFilepath))
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{
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_logger.LogWarning("FileCacheEntity has empty ResolvedFilepath for hash {hash}, prefixed path {prefixed}", fileCache.Hash, fileCache.PrefixedFilePath);
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RemoveHashedFile(fileCache.Hash, fileCache.PrefixedFilePath);
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return null;
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}
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var file = new FileInfo(fileCache.ResolvedFilepath);
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if (!file.Exists)
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{
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RemoveHashedFile(fileCache.Hash, fileCache.PrefixedFilePath);
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return null;
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}
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if (!string.Equals(file.LastWriteTimeUtc.Ticks.ToString(CultureInfo.InvariantCulture), fileCache.LastModifiedDateTicks, StringComparison.Ordinal))
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{
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UpdateHashedFile(fileCache);
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}
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return fileCache;
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}
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public Task StartAsync(CancellationToken cancellationToken)
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{
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_logger.LogInformation("Starting FileCacheManager");
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lock (_fileWriteLock)
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{
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try
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{
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_logger.LogInformation("Checking for {bakPath}", CsvBakPath);
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if (File.Exists(CsvBakPath))
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{
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_logger.LogInformation("{bakPath} found, moving to {csvPath}", CsvBakPath, _csvPath);
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File.Move(CsvBakPath, _csvPath, overwrite: true);
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}
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}
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catch (Exception ex)
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{
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_logger.LogWarning(ex, "Failed to move BAK to ORG, deleting BAK");
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try
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{
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if (File.Exists(CsvBakPath))
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File.Delete(CsvBakPath);
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}
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catch (Exception ex1)
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{
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_logger.LogWarning(ex1, "Could not delete bak file");
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}
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}
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}
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if (File.Exists(_csvPath))
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{
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if (!_ipcManager.Penumbra.APIAvailable || string.IsNullOrEmpty(_ipcManager.Penumbra.ModDirectory))
|
|
{
|
|
_lightlessMediator.Publish(new NotificationMessage("Penumbra not connected",
|
|
"Could not load local file cache data. Penumbra is not connected or not properly set up. Please enable and/or configure Penumbra properly to use Lightless. After, reload Lightless in the Plugin installer.",
|
|
LightlessConfiguration.Models.NotificationType.Error));
|
|
}
|
|
|
|
_logger.LogInformation("{csvPath} found, parsing", _csvPath);
|
|
|
|
bool success = false;
|
|
string[] entries = [];
|
|
int attempts = 0;
|
|
while (!success && attempts < 10)
|
|
{
|
|
try
|
|
{
|
|
_logger.LogInformation("Attempting to read {csvPath}", _csvPath);
|
|
entries = File.ReadAllLines(_csvPath);
|
|
success = true;
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
attempts++;
|
|
_logger.LogWarning(ex, "Could not open {file}, trying again", _csvPath);
|
|
Task.Delay(100, cancellationToken);
|
|
}
|
|
}
|
|
|
|
if (!entries.Any())
|
|
{
|
|
_logger.LogWarning("Could not load entries from {path}, continuing with empty file cache", _csvPath);
|
|
}
|
|
|
|
_logger.LogInformation("Found {amount} files in {path}", entries.Length, _csvPath);
|
|
|
|
Dictionary<string, bool> processedFiles = new(StringComparer.OrdinalIgnoreCase);
|
|
foreach (var entry in entries)
|
|
{
|
|
var splittedEntry = entry.Split(CsvSplit, StringSplitOptions.None);
|
|
try
|
|
{
|
|
var hash = splittedEntry[0];
|
|
if (hash.Length != 40) throw new InvalidOperationException("Expected Hash length of 40, received " + hash.Length);
|
|
var path = splittedEntry[1];
|
|
var time = splittedEntry[2];
|
|
|
|
if (processedFiles.ContainsKey(path))
|
|
{
|
|
_logger.LogWarning("Already processed {file}, ignoring", path);
|
|
continue;
|
|
}
|
|
|
|
processedFiles.Add(path, value: true);
|
|
|
|
long size = -1;
|
|
long compressed = -1;
|
|
if (splittedEntry.Length > 3)
|
|
{
|
|
if (long.TryParse(splittedEntry[3], CultureInfo.InvariantCulture, out long result))
|
|
{
|
|
size = result;
|
|
}
|
|
if (long.TryParse(splittedEntry[4], CultureInfo.InvariantCulture, out long resultCompressed))
|
|
{
|
|
compressed = resultCompressed;
|
|
}
|
|
}
|
|
AddHashedFile(ReplacePathPrefixes(new FileCacheEntity(hash, path, time, size, compressed)));
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
_logger.LogWarning(ex, "Failed to initialize entry {entry}, ignoring", entry);
|
|
}
|
|
}
|
|
|
|
if (processedFiles.Count != entries.Length)
|
|
{
|
|
WriteOutFullCsv();
|
|
}
|
|
}
|
|
|
|
_logger.LogInformation("Started FileCacheManager");
|
|
|
|
return Task.CompletedTask;
|
|
}
|
|
|
|
public Task StopAsync(CancellationToken cancellationToken)
|
|
{
|
|
WriteOutFullCsv();
|
|
return Task.CompletedTask;
|
|
}
|
|
} |