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feat(otel): add OpenTelemetry support

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This commit is contained in:
Julien Neuhart
2026-03-27 16:28:45 +01:00
parent 08088c15f4
commit 4e9f63004d
86 changed files with 4396 additions and 1283 deletions
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31
pkg/modules/pdftk/pdftk.go
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@@ -5,13 +5,12 @@ import (
"context"
"errors"
"fmt"
"log/slog"
"os"
"os/exec"
"path/filepath"
"syscall"
"go.uber.org/zap"
"github.com/gotenberg/gotenberg/v8/pkg/gotenberg"
)
@@ -79,7 +78,7 @@ func (engine *PdfTk) Debug() map[string]any {
}
// Split splits a given PDF file.
func (engine *PdfTk) Split(ctx context.Context, logger *zap.Logger, mode gotenberg.SplitMode, inputPath, outputDirPath string) ([]string, error) {
func (engine *PdfTk) Split(ctx context.Context, logger *slog.Logger, mode gotenberg.SplitMode, inputPath, outputDirPath string) ([]string, error) {
var args []string
outputPath := fmt.Sprintf("%s/%s", outputDirPath, filepath.Base(inputPath))
@@ -107,7 +106,7 @@ func (engine *PdfTk) Split(ctx context.Context, logger *zap.Logger, mode gotenbe
}
// Merge combines multiple PDFs into a single PDF.
func (engine *PdfTk) Merge(ctx context.Context, logger *zap.Logger, inputPaths []string, outputPath string) error {
func (engine *PdfTk) Merge(ctx context.Context, logger *slog.Logger, inputPaths []string, outputPath string) error {
args := make([]string, 0, 3+len(inputPaths))
args = append(args, inputPaths...)
args = append(args, "cat", "output", outputPath)
@@ -126,42 +125,42 @@ func (engine *PdfTk) Merge(ctx context.Context, logger *zap.Logger, inputPaths [
}
// Flatten is not available in this implementation.
func (engine *PdfTk) Flatten(ctx context.Context, logger *zap.Logger, inputPath string) error {
func (engine *PdfTk) Flatten(ctx context.Context, logger *slog.Logger, inputPath string) error {
return fmt.Errorf("flatten PDF with PDFtk: %w", gotenberg.ErrPdfEngineMethodNotSupported)
}
// Convert is not available in this implementation.
func (engine *PdfTk) Convert(ctx context.Context, logger *zap.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
func (engine *PdfTk) Convert(ctx context.Context, logger *slog.Logger, formats gotenberg.PdfFormats, inputPath, outputPath string) error {
return fmt.Errorf("convert PDF to '%+v' with PDFtk: %w", formats, gotenberg.ErrPdfEngineMethodNotSupported)
}
// ReadMetadata is not available in this implementation.
func (engine *PdfTk) ReadMetadata(ctx context.Context, logger *zap.Logger, inputPath string) (map[string]any, error) {
func (engine *PdfTk) ReadMetadata(ctx context.Context, logger *slog.Logger, inputPath string) (map[string]any, error) {
return nil, fmt.Errorf("read PDF metadata with PDFtk: %w", gotenberg.ErrPdfEngineMethodNotSupported)
}
// WriteMetadata is not available in this implementation.
func (engine *PdfTk) WriteMetadata(ctx context.Context, logger *zap.Logger, metadata map[string]any, inputPath string) error {
func (engine *PdfTk) WriteMetadata(ctx context.Context, logger *slog.Logger, metadata map[string]any, inputPath string) error {
return fmt.Errorf("write PDF metadata with PDFtk: %w", gotenberg.ErrPdfEngineMethodNotSupported)
}
// PageCount is not available in this implementation.
func (engine *PdfTk) PageCount(ctx context.Context, logger *zap.Logger, inputPath string) (int, error) {
func (engine *PdfTk) PageCount(ctx context.Context, logger *slog.Logger, inputPath string) (int, error) {
return 0, fmt.Errorf("page count with PDFtk: %w", gotenberg.ErrPdfEngineMethodNotSupported)
}
// WriteBookmarks is not available in this implementation.
func (engine *PdfTk) WriteBookmarks(ctx context.Context, logger *zap.Logger, inputPath string, bookmarks []gotenberg.Bookmark) error {
func (engine *PdfTk) WriteBookmarks(ctx context.Context, logger *slog.Logger, inputPath string, bookmarks []gotenberg.Bookmark) error {
return fmt.Errorf("write PDF bookmarks with PDFtk: %w", gotenberg.ErrPdfEngineMethodNotSupported)
}
// ReadBookmarks is not available in this implementation.
func (engine *PdfTk) ReadBookmarks(ctx context.Context, logger *zap.Logger, inputPath string) ([]gotenberg.Bookmark, error) {
func (engine *PdfTk) ReadBookmarks(ctx context.Context, logger *slog.Logger, inputPath string) ([]gotenberg.Bookmark, error) {
return nil, fmt.Errorf("read PDF bookmarks with PDFtk: %w", gotenberg.ErrPdfEngineMethodNotSupported)
}
// Encrypt adds password protection to a PDF file using PDFtk.
func (engine *PdfTk) Encrypt(ctx context.Context, logger *zap.Logger, inputPath, userPassword, ownerPassword string) error {
func (engine *PdfTk) Encrypt(ctx context.Context, logger *slog.Logger, inputPath, userPassword, ownerPassword string) error {
if userPassword == "" {
return errors.New("user password cannot be empty")
}
@@ -199,13 +198,13 @@ func (engine *PdfTk) Encrypt(ctx context.Context, logger *zap.Logger, inputPath,
}
// EmbedFiles is not available in this implementation.
func (engine *PdfTk) EmbedFiles(ctx context.Context, logger *zap.Logger, filePaths []string, inputPath string) error {
func (engine *PdfTk) EmbedFiles(ctx context.Context, logger *slog.Logger, filePaths []string, inputPath string) error {
return fmt.Errorf("embed files with PDFtk: %w", gotenberg.ErrPdfEngineMethodNotSupported)
}
// Watermark applies a watermark (behind page content) to a PDF file using PDFtk.
// Only PDF source is supported.
func (engine *PdfTk) Watermark(ctx context.Context, logger *zap.Logger, inputPath string, stamp gotenberg.Stamp) error {
func (engine *PdfTk) Watermark(ctx context.Context, logger *slog.Logger, inputPath string, stamp gotenberg.Stamp) error {
if stamp.Source != gotenberg.StampSourcePDF {
return fmt.Errorf("watermark PDF with PDFtk: %w", gotenberg.ErrPdfStampSourceNotSupported)
}
@@ -234,7 +233,7 @@ func (engine *PdfTk) Watermark(ctx context.Context, logger *zap.Logger, inputPat
// Stamp applies a stamp (on top of page content) to a PDF file using PDFtk.
// Only PDF source is supported.
func (engine *PdfTk) Stamp(ctx context.Context, logger *zap.Logger, inputPath string, stamp gotenberg.Stamp) error {
func (engine *PdfTk) Stamp(ctx context.Context, logger *slog.Logger, inputPath string, stamp gotenberg.Stamp) error {
if stamp.Source != gotenberg.StampSourcePDF {
return fmt.Errorf("stamp PDF with PDFtk: %w", gotenberg.ErrPdfStampSourceNotSupported)
}
@@ -264,7 +263,7 @@ func (engine *PdfTk) Stamp(ctx context.Context, logger *zap.Logger, inputPath st
// Rotate rotates all pages of a PDF file by the given angle using PDFtk.
// Page-specific rotation is not supported; if pages is non-empty,
// ErrPdfEngineMethodNotSupported is returned.
func (engine *PdfTk) Rotate(ctx context.Context, logger *zap.Logger, inputPath string, angle int, pages string) error {
func (engine *PdfTk) Rotate(ctx context.Context, logger *slog.Logger, inputPath string, angle int, pages string) error {
if pages != "" {
return fmt.Errorf("rotate PDF with PDFtk (page-specific rotation): %w", gotenberg.ErrPdfEngineMethodNotSupported)
}