102 lines
3.6 KiB
C#
102 lines
3.6 KiB
C#
using PARR.API.Domain;
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using PARR.API.Services.Interfaces;
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using PARR.API.Settings;
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namespace PARR.API.Services.Implementations
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{
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public class FileService : IFileService
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{
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private readonly StorageSettings storageSettings;
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private readonly ILogger<FileService> logger;
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public FileService(StorageSettings storageSettings, ILogger<FileService> logger)
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{
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this.storageSettings = storageSettings;
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this.logger = logger;
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}
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public bool IsExtensionAllowed(IFormFile formFile, string[] allowedExtensions)
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{
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var extension = Path.GetExtension(formFile.FileName).ToLower();
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return !string.IsNullOrEmpty(extension) && allowedExtensions.Contains(extension);
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}
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public bool IsNotExceededLimit(IFormFile formFile, int limitMb)
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{
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var fileSizeByte = formFile.Length;
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var fileSizeMByte = fileSizeByte / 1024.0 / 1024.0;
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return fileSizeMByte < limitMb;
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}
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public async Task<UploadResult?> UploadAsync(IFormFile formFile, string[] rootFolderWithoutStorage)
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{
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InitRootFolders(rootFolderWithoutStorage);
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//Генерим уникальное имя файла: старое имя + рандом в середину
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var newFileName = $"{Path.GetFileNameWithoutExtension(formFile.FileName)}-{Path.GetFileNameWithoutExtension(Path.GetRandomFileName())}{Path.GetExtension(formFile.FileName)}";
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var relativePath = Path.Combine(Path.Combine(rootFolderWithoutStorage), newFileName);
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var absPath = Path.Combine(storageSettings.StoragePath, relativePath);
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if (File.Exists(absPath))
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{
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logger.LogError($"Не могу сохранить файл, такой файл уже существует: {absPath}");
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return null;
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}
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try
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{
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var origFileName = Path.GetFileName(formFile.FileName);
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using (var stream = new FileStream(absPath, FileMode.Create))
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{
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await formFile.CopyToAsync(stream);
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logger.LogInformation($"Файл сохранен {origFileName}, {absPath}");
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}
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return new UploadResult { FileName = origFileName, Path = relativePath };
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}
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catch (Exception ex)
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{
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logger.LogError(ex, $"Ошибка при сохранении файла {absPath}");
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return null;
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}
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}
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private void InitRootFolders(string[] rootFolderWithoutStorage)
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{
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if (!rootFolderWithoutStorage.Any())
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return;
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var path = string.Empty;
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foreach (var item in rootFolderWithoutStorage)
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{
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path = Path.Combine(path, item);
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CreateDirectory(path);
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}
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}
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private void CreateDirectory(string relativePath)
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{
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var absolutePath = Path.Combine(storageSettings.StoragePath, relativePath);
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try
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{
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if (!Directory.Exists(absolutePath))
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Directory.CreateDirectory(absolutePath);
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// не нужно ничего возвращать, при сохраненнии файла будет ошибка и ее обработаем
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//return true;
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}
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catch (Exception e)
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{
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logger.LogError(e, $"Не могу создать директорию: {absolutePath}");
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//return false;
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}
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}
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}
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}
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