42d4222fb3
Previously, the method directly converted a byte array to a string
without accounting for a potential UTF-8 Byte Order Mark (BOM).
This commit introduces logic to remove the BOM (if present)
using `TrimStart('\uFEFF')` after converting the byte array
to a string.
Additionally, a comment was added to clarify the purpose of
this change.
37 lines
1.1 KiB
C#
37 lines
1.1 KiB
C#
namespace DXApp.TemplateKitProject.Services
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{
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using DevExpress.Pdf;
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using System.Text;
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public class ZugferdExtractorService
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{
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private static readonly string[] KnownFileNames =
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[
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"zugferd-invoice.xml",
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"factur-x.xml",
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"xrechnung.xml"
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];
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public string? ExtractXml(Stream pdfStream)
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{
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using var processor = new PdfDocumentProcessor();
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processor.LoadDocument(pdfStream);
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foreach (var attachment in processor.Document.FileAttachments)
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{
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bool isZugferd = KnownFileNames.Any(name =>
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attachment.FileName.Equals(name, StringComparison.OrdinalIgnoreCase));
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if (isZugferd || attachment.MimeType == "text/xml")
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{
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byte[] data = attachment.Data;
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// BOM entfernen falls vorhanden (EF BB BF am Anfang)
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var text = Encoding.UTF8.GetString(data);
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return text.TrimStart('\uFEFF');
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}
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}
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return null; // Kein ZUGFeRD-Anhang gefunden
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}
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}
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} |