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Use actual MIME type for trust center file exports

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The export endpoint was hardcoding application/pdf for all trust center
files. Now the real MIME type from the stored file metadata is threaded
through the service layer and returned as a data URI, so non-PDF files
are handled correctly on the frontend. Watermarking is only applied when
the file is actually a PDF.

Signed-off-by: Bryan Frimin <bryan@getprobo.com>
This commit is contained in:
Bryan Frimin
2026-03-20 17:43:19 +01:00
parent 8142637e79
commit 190baeebed
3 changed files with 39 additions and 23 deletions
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29
pkg/trust/trust_center_file_service.go
View File

@@ -97,31 +97,34 @@ func (s *TrustCenterFileService) ExportFile(
ctx context.Context,
trustCenterFileID gid.GID,
email mail.Addr,
) ([]byte, error) {
pdfData, err := s.exportFileData(ctx, trustCenterFileID)
) ([]byte, string, error) {
fileData, mimeType, err := s.exportFileData(ctx, trustCenterFileID)
if err != nil {
return nil, fmt.Errorf("cannot export trust center file: %w", err)
return nil, "", fmt.Errorf("cannot export trust center file: %w", err)
}
watermarkedPDF, err := watermarkpdf.AddConfidentialWithTimestamp(pdfData, email)
if err != nil {
return nil, fmt.Errorf("cannot add watermark to PDF: %w", err)
if mimeType == "application/pdf" {
watermarkedPDF, err := watermarkpdf.AddConfidentialWithTimestamp(fileData, email)
if err != nil {
return nil, "", fmt.Errorf("cannot add watermark to PDF: %w", err)
}
return watermarkedPDF, mimeType, nil
}
return watermarkedPDF, nil
return fileData, mimeType, nil
}
func (s *TrustCenterFileService) ExportFileWithoutWatermark(
ctx context.Context,
trustCenterFileID gid.GID,
) ([]byte, error) {
) ([]byte, string, error) {
return s.exportFileData(ctx, trustCenterFileID)
}
func (s *TrustCenterFileService) exportFileData(
ctx context.Context,
trustCenterFileID gid.GID,
) ([]byte, error) {
) ([]byte, string, error) {
var trustCenterFile *coredata.TrustCenterFile
var file *coredata.File
@@ -139,7 +142,7 @@ func (s *TrustCenterFileService) exportFileData(
return nil
})
if err != nil {
return nil, err
return nil, "", err
}
result, err := s.svc.s3.GetObject(ctx, &s3.GetObjectInput{
@@ -147,14 +150,14 @@ func (s *TrustCenterFileService) exportFileData(
Key: new(file.FileKey),
})
if err != nil {
return nil, fmt.Errorf("cannot download file from S3: %w", err)
return nil, "", fmt.Errorf("cannot download file from S3: %w", err)
}
defer func() { _ = result.Body.Close() }()
fileData, err := io.ReadAll(result.Body)
if err != nil {
return nil, fmt.Errorf("cannot read file data: %w", err)
return nil, "", fmt.Errorf("cannot read file data: %w", err)
}
return fileData, nil
return fileData, file.MimeType, nil
}