init

utils/utils.go

@@ -0,0 +1,32 @@
+package utils
+
+import (
+	"crypto/rand"
+	"encoding/hex"
+	"fmt"
+	"github.com/pdfcpu/pdfcpu/pkg/api"
+)
+
+func GenerateSessionId(length int) string {
+	bytes := make([]byte, length) // 16 bytes = 128 bits
+	_, err := rand.Read(bytes)
+	if err != nil {
+		panic("failed to generate session ID")
+	}
+	return hex.EncodeToString(bytes)
+}
+
+func GenerateToken() string {
+	return GenerateSessionId(16)
+}
+
+func CountPagesAtPath(path string) (pages int) {
+	ctx, err := api.ReadContextFile(path)
+	if err != nil {
+		fmt.Println("Error reading PDF:", err)
+		return
+	}
+
+	pages = ctx.PageCount
+	return
+}