115 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			C#
		
	
	
	
	
	
			
		
		
	
	
			115 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			C#
		
	
	
	
	
	
| using DomainResults.Common;
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| 
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| using DataProviders;
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| using DataProviders.Buckets;
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| 
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| using FileSecurityService;
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| using Core.Abstractions;
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| 
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| namespace WeatherForecast.Services {
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| 
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|   /// <summary>
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|   /// 
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|   /// </summary>
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|   public interface IFilesService {
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| 
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|     /// <summary>
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|     /// 
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|     /// </summary>
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|     /// <param name="siteId"></param>
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|     /// <param name="userId"></param>
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|     /// <param name="files"></param>
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|     /// <returns></returns>
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|     (List<Guid>?, IDomainResult) Post(Guid siteId, Guid userId, List<IFormFile> files);
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| 
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|     /// <summary>
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|     /// 
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|     /// </summary>
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|     /// <param name="siteId"></param>
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|     /// <param name="userId"></param>
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|     /// <returns></returns>
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|     IDomainResult Delete(Guid siteId, Guid userId);
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|   }
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| 
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|   /// <summary>
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|   /// 
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|   /// </summary>
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|   public class FilesService : ServiceBase<FilesService>, IFilesService {
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| 
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|     private readonly IFileSecurityService _fileSecurityService;
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|     private readonly IImageBucketDataProvider _imageBucketDataProvider;
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| 
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|     /// <summary>
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|     /// 
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|     /// </summary>
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|     /// <param name="logger"></param>
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|     /// <param name="imageBucketDataProvider"></param>
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|     public FilesService(
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|       ILogger<FilesService> logger,
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|       IFileSecurityService fileSecurityService,
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|       IImageBucketDataProvider imageBucketDataProvider
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|     ) : base(logger) {
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|       _fileSecurityService = fileSecurityService;
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|       _imageBucketDataProvider = imageBucketDataProvider;
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|     }
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| 
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|     /// <summary>
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|     /// Process uploaded files
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|     /// </summary>
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|     /// <param name="siteId"></param>
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|     /// <param name="userId"></param>
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|     /// <param name="files"></param>
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|     /// <returns></returns>
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|     public (List<Guid>?, IDomainResult) Post(Guid siteId, Guid userId, List<IFormFile> files) {
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|       try {
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|         // Don't rely on or trust the FileName property without validation.
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| 
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|         if(files.Any(x => !(x.Length > 0)))
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|           return IDomainResult.Failed<List<Guid>?>();
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| 
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|         var newFiles = new List<BucketFile>();
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|         foreach (var formFile in files) {
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|           using var ms = new MemoryStream();
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|           formFile.CopyTo(ms);
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|           var bytes = ms.ToArray();
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| 
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|           var (fileCategory, signatureResult) = _fileSecurityService.CheckFileSignature(formFile.FileName, bytes, formFile.ContentType);
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|           if (!signatureResult.IsSuccess || fileCategory == null)
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|             return IDomainResult.Failed<List<Guid>?>();
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| 
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|           var bucketFile = new BucketFile(formFile.FileName, bytes, formFile.ContentType);
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| 
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|           newFiles.Add(bucketFile);
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|         }
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| 
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|         var (list, result) = _imageBucketDataProvider.UploadMany(siteId, userId, newFiles);
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| 
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|         if (!result.IsSuccess || list == null)
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|           return IDomainResult.Failed<List<Guid>?>();
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| 
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|         return IDomainResult.Success(list);
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|       }
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|       catch (Exception ex) {
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|         _logger.LogError(ex, "Unhandled exception");
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|         return IDomainResult.Failed<List<Guid>?> (ex.Message);
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|       }
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|     }
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| 
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|     /// <summary>
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|     /// 
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|     /// </summary>
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|     /// <param name="siteId"></param>
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|     /// <param name="userId"></param>
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|     /// <returns></returns>
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|     public IDomainResult Delete(Guid siteId, Guid userId) {
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|       try {
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|         return _imageBucketDataProvider.DeletMany(siteId, userId);
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|       }
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|       catch (Exception ex) {
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|         _logger.LogError(ex, "Unhandled exception");
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|         return IDomainResult.Failed(ex.Message);
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|       }
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|     }
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|   }
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| }
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