重构后端服务架构并优化前端错误处理

go-backend/utils/jwt.go

@@ -0,0 +1,62 @@
+package utils
+
+import (
+	"os"
+	"time"
+
+	"github.com/golang-jwt/jwt/v5"
+)
+
+var jwtSecret = []byte(os.Getenv("JWT_SECRET"))
+
+type Claims struct {
+	UUID string `json:"uuid"`
+	jwt.RegisteredClaims
+}
+
+// GenerateJWT generates a new JWT token for a user
+func GenerateJWT(uuid string) (string, error) {
+	// Set expiration time (24 hours from now)
+	expirationTime := time.Now().Add(24 * time.Hour)
+
+	// Create claims
+	claims := &Claims{
+		UUID: uuid,
+		RegisteredClaims: jwt.RegisteredClaims{
+			ExpiresAt: jwt.NewNumericDate(expirationTime),
+			IssuedAt:  jwt.NewNumericDate(time.Now()),
+		},
+	}
+
+	// Create token with claims
+	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
+
+	// Generate encoded token
+	tokenString, err := token.SignedString(jwtSecret)
+	if err != nil {
+		return "", err
+	}
+
+	return tokenString, nil
+}
+
+// ParseJWT parses and validates a JWT token
+func ParseJWT(tokenString string) (*Claims, error) {
+	claims := &Claims{}
+
+	// Parse token
+	token, err := jwt.ParseWithClaims(tokenString, claims, func(token *jwt.Token) (interface{}, error) {
+		return jwtSecret, nil
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	// Check if token is valid
+	if !token.Valid {
+		return nil, jwt.ErrTokenMalformed
+	}
+
+	return claims, nil
+}

go-backend/utils/password.go

@@ -0,0 +1,17 @@
+package utils
+
+import (
+	"golang.org/x/crypto/bcrypt"
+)
+
+// HashPassword generates a bcrypt hash of the password
+func HashPassword(password string) (string, error) {
+	bytes, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+	return string(bytes), err
+}
+
+// CheckPasswordHash compares a bcrypt hashed password with its possible plaintext equivalent
+func CheckPasswordHash(password, hash string) bool {
+	err := bcrypt.CompareHashAndPassword([]byte(hash), []byte(password))
+	return err == nil
+}