Domain layer: - PdfAMetadata value object (isValid, pdfVersion, pageCount, encrypted, pdfaVersion, pdfaCompliant, errors, warnings) Infrastructure layer: - IPdfProcessor.ValidatePdfAAsync() interface method - DevExpressPdfProcessor.ValidatePdfAAsync() implementation - DetectEncryption() - scans PDF raw data for /Encrypt keyword - DetectPdfAConformance() - parses XMP metadata (pdfaid:part, pdfaid:conformance) - Validation: encrypted PDF cannot be PDF/A compliant Application layer: - ValidatePdfAQuery + ValidatePdfAQueryHandler (co-located) - ValidatePdfAQueryValidator (FluentValidation: PdfBytes XOR Base64Pdf) - PdfAValidationResult DTO - AutoMapper: PdfAMetadata -> PdfAValidationResult API layer: - PdfValidationController.ValidatePdfAFromFile() (multipart/form-data) - PdfValidationController.ValidatePdfAFromBase64() (application/json) - XML documentation with response codes Result: - POST /api/pdf/validation/validate-pdfa (both multipart and JSON) - Returns: conformance level, errors, warnings - Build: 0 errors, 4 warnings (DevExpress eval) - Tests: 20/20 passing Next: Integration tests + Swagger test case
46 lines
1.5 KiB
C#
46 lines
1.5 KiB
C#
using AutoMapper;
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using DocumentOperator.Application.Common.DTOs;
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using DocumentOperator.Application.Common.Interfaces;
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using MediatR;
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namespace DocumentOperator.Application.ValidatePdfA.Queries;
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/// <summary>
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/// Query for PDF/A validation (supports both byte array and Base64 input)
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/// </summary>
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public record ValidatePdfAQuery : IRequest<PdfAValidationResult>
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{
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/// <summary>
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/// PDF as byte array (direct upload)
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/// </summary>
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public byte[]? PdfBytes { get; init; }
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/// <summary>
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/// PDF as Base64 string (API clients)
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/// </summary>
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public string? Base64Pdf { get; init; }
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}
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/// <summary>
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/// Handler for ValidatePdfAQuery
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/// Orchestrates PDF/A validation using IPdfProcessor and AutoMapper
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/// </summary>
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public class ValidatePdfAQueryHandler(IPdfProcessor PdfProcessor, IMapper Mapper)
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: IRequestHandler<ValidatePdfAQuery, PdfAValidationResult>
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{
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/// <summary>
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/// Validates PDF/A and returns metadata with conformance level
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/// </summary>
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public async Task<PdfAValidationResult> Handle(ValidatePdfAQuery request, CancellationToken cancellationToken)
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{
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// Use byte[] if available, otherwise convert Base64
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byte[] pdfBytes = request.PdfBytes ?? Convert.FromBase64String(request.Base64Pdf!);
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// Call DevExpress service (can throw PdfProcessingException)
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var metadata = await PdfProcessor.ValidatePdfAAsync(pdfBytes);
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// Map domain entity to DTO using AutoMapper
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return Mapper.Map<PdfAValidationResult>(metadata);
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}
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}
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