refactor

internal/infrastructure/security/jwt.go

@@ -0,0 +1,59 @@
+package security
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/golang-jwt/jwt/v5"
+)
+
+// JWTService interface defines the contract for JWT operations
+type JWTService interface {
+	GenerateToken(userID int, username string) (string, error)
+	ValidateToken(tokenString string) (jwt.MapClaims, error)
+}
+
+// JWTServiceImpl implements JWTService using golang-jwt
+type JWTServiceImpl struct {
+	secret []byte
+}
+
+// NewJWTService creates a new JWT service
+func NewJWTService(secret string) JWTService {
+	return &JWTServiceImpl{
+		secret: []byte(secret),
+	}
+}
+
+// GenerateToken generates a JWT token for a user
+func (j *JWTServiceImpl) GenerateToken(userID int, username string) (string, error) {
+	claims := jwt.MapClaims{
+		"user_id":  userID,
+		"username": username,
+		"exp":      time.Now().Add(time.Hour * 24 * 7).Unix(), // 7 days
+		"iat":      time.Now().Unix(),
+	}
+
+	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
+	return token.SignedString(j.secret)
+}
+
+// ValidateToken validates a JWT token and returns the claims
+func (j *JWTServiceImpl) ValidateToken(tokenString string) (jwt.MapClaims, error) {
+	token, err := jwt.Parse(tokenString, func(token *jwt.Token) (interface{}, error) {
+		if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
+			return nil, fmt.Errorf("unexpected signing method: %v", token.Header["alg"])
+		}
+		return j.secret, nil
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	if claims, ok := token.Claims.(jwt.MapClaims); ok && token.Valid {
+		return claims, nil
+	}
+
+	return nil, fmt.Errorf("invalid token")
+}

internal/infrastructure/security/password.go

@@ -0,0 +1,29 @@
+package security
+
+import "golang.org/x/crypto/bcrypt"
+
+// PasswordService interface defines the contract for password operations
+type PasswordService interface {
+	HashPassword(password string) (string, error)
+	CheckPasswordHash(password, hash string) bool
+}
+
+// PasswordServiceImpl implements PasswordService using bcrypt
+type PasswordServiceImpl struct{}
+
+// NewPasswordService creates a new password service
+func NewPasswordService() PasswordService {
+	return &PasswordServiceImpl{}
+}
+
+// HashPassword hashes a password using bcrypt
+func (p *PasswordServiceImpl) HashPassword(password string) (string, error) {
+	bytes, err := bcrypt.GenerateFromPassword([]byte(password), 14)
+	return string(bytes), err
+}
+
+// CheckPasswordHash compares a password with its hash
+func (p *PasswordServiceImpl) CheckPasswordHash(password, hash string) bool {
+	err := bcrypt.CompareHashAndPassword([]byte(hash), []byte(password))
+	return err == nil
+}