ajout app

Voltaserve/conversion/processor/pdf_processor.go

@@ -0,0 +1,65 @@
+package processor
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"voltaserve/config"
+	"voltaserve/core"
+	"voltaserve/helper"
+	"voltaserve/infra"
+)
+
+type PDFProcessor struct {
+	cmd       *infra.Command
+	imageProc *ImageProcessor
+	config    config.Config
+}
+
+func NewPDFProcessor() *PDFProcessor {
+	return &PDFProcessor{
+		cmd:       infra.NewCommand(),
+		imageProc: NewImageProcessor(),
+		config:    config.GetConfig(),
+	}
+}
+
+func (p *PDFProcessor) Base64Thumbnail(inputPath string) (core.ImageBase64, error) {
+	outputPath := filepath.FromSlash(os.TempDir() + "/" + helper.NewID() + ".png")
+	if err := p.imageProc.ThumbnailFromImage(inputPath, 0, p.config.Limits.ImagePreviewMaxHeight, outputPath); err != nil {
+		return core.ImageBase64{}, err
+	}
+	b64, err := helper.ImageToBase64(outputPath)
+	if err != nil {
+		return core.ImageBase64{}, err
+	}
+	imageProps, err := p.imageProc.MeasureImage(outputPath)
+	if err != nil {
+		return core.ImageBase64{}, err
+	}
+	if _, err := os.Stat(outputPath); err == nil {
+		if err := os.Remove(outputPath); err != nil {
+			return core.ImageBase64{}, err
+		}
+	}
+	return core.ImageBase64{
+		Base64: b64,
+		Width:  imageProps.Width,
+		Height: imageProps.Height,
+	}, nil
+}
+
+func (p *PDFProcessor) TextFromPDF(inputPath string) (string, error) {
+	outputPath := filepath.FromSlash(os.TempDir() + "/" + helper.NewID() + ".txt")
+	if err := infra.NewCommand().Exec("pdftotext", inputPath, outputPath); err != nil {
+		return "", err
+	}
+	b, err := os.ReadFile(outputPath)
+	if err != nil {
+		return "", err
+	}
+	if err := os.Remove(outputPath); err != nil {
+		return "", err
+	}
+	return strings.TrimSpace(string(b)), nil
+}