Initial commit including .env

utils/helper.go

@@ -0,0 +1,66 @@
+package utils
+
+import (
+	"errors"
+	"time"
+
+	"github.com/golang-jwt/jwt/v5"
+	"golang.org/x/crypto/bcrypt"
+)
+
+func HashPassword(password string) (string, error) {
+	bytes, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+	return string(bytes), err
+}
+
+func CheckPasswordHash(password, hash string) bool {
+	err := bcrypt.CompareHashAndPassword([]byte(hash), []byte(password))
+	return err == nil
+}
+
+type Claims struct {
+	UserID   int    `json:"userid"`
+	Email    string `json:"email"`
+	RoleID   int    `json:"roleid"`
+	TenantID int    `json:"tenantid"`
+	ConfigID int    `json:"configid,omitempty"`
+	jwt.RegisteredClaims
+}
+
+func GenerateToken(userID int, email string, roleID int, tenantID int, configID int, secret string) (string, error) {
+	expirationTime := time.Now().Add(24 * time.Hour)
+	claims := &Claims{
+		UserID:   userID,
+		Email:    email,
+		RoleID:   roleID,
+		TenantID: tenantID,
+		ConfigID: configID,
+		RegisteredClaims: jwt.RegisteredClaims{
+			ExpiresAt: jwt.NewNumericDate(expirationTime),
+			IssuedAt:  jwt.NewNumericDate(time.Now()),
+		},
+	}
+
+	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
+	return token.SignedString([]byte(secret))
+}
+
+func ParseToken(tokenString string, secret string) (*Claims, error) {
+	token, err := jwt.ParseWithClaims(tokenString, &Claims{}, func(token *jwt.Token) (interface{}, error) {
+		return []byte(secret), nil
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	if claims, ok := token.Claims.(*Claims); ok && token.Valid {
+		return claims, nil
+	}
+
+	return nil, errors.New("invalid token")
+}
+
+func IntPtr(v int) *int {
+	return &v
+}