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feat(pdfengines): add PDF/UA (#714)

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This commit is contained in:
Julien Neuhart
2023-11-05 20:14:36 +01:00
committed by GitHub
parent 9c3dfc78df
commit 143b7ce678
39 changed files with 1300 additions and 1013 deletions
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23
pkg/modules/libreoffice/pdfengine/pdfengine.go
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@@ -16,7 +16,7 @@ func init() {
}
// LibreOfficePdfEngine interacts with the LibreOffice (Universal Network Objects) API
// and implements the [gotenberg.PDFEngine] interface.
// and implements the [gotenberg.PdfEngine] interface.
type LibreOfficePdfEngine struct {
unoAPI api.Uno
}
@@ -46,17 +46,18 @@ func (engine *LibreOfficePdfEngine) Provision(ctx *gotenberg.Context) error {
return nil
}
// Merge is not available for this PDF engine.
func (engine *LibreOfficePdfEngine) Merge(_ context.Context, _ *zap.Logger, _ []string, _ string) error {
return fmt.Errorf("merge PDFs with LibreOffice: %w", gotenberg.ErrPDFEngineMethodNotAvailable)
// Merge is not available in this implementation.
func (engine *LibreOfficePdfEngine) Merge(ctx context.Context, logger *zap.Logger, inputPaths []string, outputPath string) error {
return fmt.Errorf("merge PDFs with LibreOffice: %w", gotenberg.ErrPdfEngineMethodNotSupported)
}
// Convert converts the given PDF to a specific PDF format. Currently, only the
// PDF/A-1a, PDF/A-2b and PDF/A-3b formats are available. If another PDF format
// is requested, it returns a [gotenberg.ErrPDFFormatNotAvailable] error.
func (engine *LibreOfficePdfEngine) Convert(ctx context.Context, logger *zap.Logger, format, inputPath, outputPath string) error {
// PDF/A-1a, PDF/A-2b, PDF/A-3b and PDF/UA formats are available. If another
// PDF format is requested, it returns a [gotenberg.ErrPdfFormatNotSupported]
// error.
func (engine *LibreOfficePdfEngine) Convert(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
err := engine.unoAPI.Pdf(ctx, logger, inputPath, outputPath, api.Options{
PdfFormat: format,
PdfFormats: formats,
})
if err == nil {
@@ -64,15 +65,15 @@ func (engine *LibreOfficePdfEngine) Convert(ctx context.Context, logger *zap.Log
}
if errors.Is(err, api.ErrInvalidPdfFormat) {
return fmt.Errorf("convert PDF to '%s' with LibreOffice: %w", format, gotenberg.ErrPDFFormatNotAvailable)
return fmt.Errorf("convert PDF to '%+v' with LibreOffice: %w", formats, gotenberg.ErrPdfFormatNotSupported)
}
return fmt.Errorf("convert PDF to '%s' with unoconv: %w", format, err)
return fmt.Errorf("convert PDF to '%+v' with LibreOffice: %w", formats, err)
}
// Interface guards.
var (
_ gotenberg.Module = (*LibreOfficePdfEngine)(nil)
_ gotenberg.Provisioner = (*LibreOfficePdfEngine)(nil)
_ gotenberg.PDFEngine = (*LibreOfficePdfEngine)(nil)
_ gotenberg.PdfEngine = (*LibreOfficePdfEngine)(nil)
)