add rest api for api_bb vue a lot of files

serv_nginx/api_bb/internal/service/jwt_service.go

@@ -0,0 +1,61 @@
+// service/jwt_service.go
+package service
+
+import (
+	"errors"
+	"fmt"
+	"time"
+	
+	"github.com/golang-jwt/jwt/v5"
+)
+
+type JWTService interface {
+	GenerateToken(userID uint, email string) (string, error)
+	ValidateToken(tokenString string) (*jwt.Token, error)
+	ExtractUserID(token *jwt.Token) (uint, error)
+}
+
+type jwtService struct {
+	secretKey string
+}
+
+func NewJWTService(secretKey string) JWTService {
+	return &jwtService{secretKey: secretKey}
+}
+
+type Claims struct {
+	UserID uint   `json:"user_id"`
+	Email  string `json:"email"`
+	jwt.RegisteredClaims
+}
+
+func (j *jwtService) GenerateToken(userID uint, email string) (string, error) {
+	claims := &Claims{
+		UserID: userID,
+		Email:  email,
+		RegisteredClaims: jwt.RegisteredClaims{
+			ExpiresAt: jwt.NewNumericDate(time.Now().Add(24 * time.Hour)),
+			IssuedAt:  jwt.NewNumericDate(time.Now()),
+		},
+	}
+	
+	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
+	return token.SignedString([]byte(j.secretKey))
+}
+
+func (j *jwtService) ValidateToken(tokenString string) (*jwt.Token, error) {
+	return jwt.ParseWithClaims(tokenString, &Claims{}, 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 []byte(j.secretKey), nil
+	})
+}
+
+func (j *jwtService) ExtractUserID(token *jwt.Token) (uint, error) {
+	claims, ok := token.Claims.(*Claims)
+	if !ok {
+		return 0, errors.New("invalid token claims")
+	}
+	return claims.UserID, nil
+}