initial auth route

utils/utils.go

@@ -0,0 +1,73 @@
+package utils
+
+import (
+	"encoding/json"
+	"fmt"
+	"log"
+	"os"
+	"strings"
+
+	"github.com/dgrijalva/jwt-go"
+	"github.com/gofiber/fiber/v2"
+	"golang.org/x/crypto/bcrypt"
+)
+
+func HashPassword(password string) ([]byte, error) {
+	return bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+}
+
+func VerifyAuthentication(c *fiber.Ctx, cookie string) (*jwt.StandardClaims, error) {
+
+	token, err := jwt.ParseWithClaims(cookie, &jwt.StandardClaims{}, func(token *jwt.Token) (interface{}, error) {
+		return []byte(os.Getenv("API_SECRET")), nil
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	claims := token.Claims.(*jwt.StandardClaims)
+
+	return claims, nil
+}
+
+func ProcessToken(c *fiber.Ctx) (interface{}, error) {
+	bearToken := c.Get("Authorization")
+
+	var token string
+
+	// Normally Authorization HTTP header.
+	onlyToken := strings.Split(bearToken, " ")
+	if len(onlyToken) == 2 {
+		token = onlyToken[1]
+	} else {
+		token = bearToken
+	}
+
+	tk, err := jwt.Parse(token, jwtKeyFunc)
+
+	if err != nil {
+		fmt.Println("Error 1")
+		return nil, err
+	}
+
+	claims, ok := tk.Claims.(jwt.MapClaims)
+
+	if ok && tk.Valid {
+		return claims["user"], nil
+	}
+
+	return nil, err
+}
+
+func jwtKeyFunc(token *jwt.Token) (interface{}, error) {
+	return []byte(os.Getenv("API_SECRET")), nil
+}
+
+func PrettyPrintJson(data interface{}) {
+	b, err := json.MarshalIndent(data, "", "  ")
+	if err != nil {
+		fmt.Println("error:", err)
+	}
+	log.Println(string(b))
+}