feat: auth middleware;

fix: backend healthcheck

backend/internal/middleware/auth.go

@@ -0,0 +1,56 @@
+package middleware
+
+import (
+	"easywish/config"
+	"errors"
+	"fmt"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	"github.com/golang-jwt/jwt/v5"
+)
+
+type Claims struct {
+	Username string `json:"username"`
+	jwt.RegisteredClaims
+}
+
+func JWTAuthMiddleware() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		cfg := config.GetConfig()
+		authHeader := c.GetHeader("Authorization")
+		if authHeader == "" {
+			c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"error": "Authorization header required"})
+			return
+		}
+
+		tokenString := authHeader
+
+		token, err := jwt.ParseWithClaims(
+			tokenString, 
+			&Claims{}, 
+			func(token *jwt.Token) (any, error) {
+				if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
+					return nil, fmt.Errorf("unexpected signing method: %v", token.Header["alg"])
+				}
+				return []byte(cfg.JwtSecret), nil
+			},
+		)
+
+		if err != nil {
+			if errors.Is(err, jwt.ErrTokenExpired) {
+				c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"error": "Token expired"})
+			} else {
+				c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"error": "Invalid token"})
+			}
+			return
+		}
+
+		if claims, ok := token.Claims.(*Claims); ok && token.Valid {
+			c.Set("userID", claims.Username)
+			c.Next()
+		} else {
+			c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"error": "Invalid claims"})
+		}
+	}
+}

backend/internal/routes/setup.go

@@ -2,6 +2,7 @@ package routes
 
 import (
 	"easywish/internal/controllers"
+	"easywish/internal/middleware"
 
 	"github.com/gin-gonic/gin"
 )
@@ -24,18 +25,27 @@ func SetupRoutes(r *gin.Engine) *gin.Engine {
 			authGroup.POST("/passwordResetComplete", controllers.PasswordResetComplete)
 		}
 
-		accountGroup := apiGroup.Group("/account")
-		{
-			accountGroup.PUT("/changePassword", controllers.ChangePassword)
-		}
-
 		profileGroup := apiGroup.Group("/profile")
 		{
 			profileGroup.GET("/:username", controllers.GetProfile)
-			profileGroup.GET("/me", controllers.GetOwnProfile)
-			profileGroup.GET("/privacy", controllers.GetPrivacySettings)
-			profileGroup.PATCH("/privacy", controllers.UpdatePrivacySettings)
 		}
+
+		protected := apiGroup.Group("")
+		protected.Use(middleware.JWTAuthMiddleware())
+		{
+			accountGroup := protected.Group("/account")
+			{
+				accountGroup.PUT("/changePassword", controllers.ChangePassword)
+			}
+
+			profileGroup := protected.Group("/profile")
+			{
+				profileGroup.GET("/me", controllers.GetOwnProfile)
+				profileGroup.GET("/privacy", controllers.GetPrivacySettings)
+				profileGroup.PATCH("/privacy", controllers.UpdatePrivacySettings)
+			}
+		}
+
 	}
 	
 	return r

backend/internal/utils/jwt.go

@@ -0,0 +1,26 @@
+package utils
+
+import (
+	"easywish/config"
+	"time"
+
+	"github.com/golang-jwt/jwt/v5"
+)
+
+func GenerateTokens(username string) (accessToken, refreshToken string, err error) {
+	cfg := config.GetConfig()
+
+	accessClaims := jwt.MapClaims{
+		"username": username,
+		"exp":     time.Now().Add(time.Minute * time.Duration(cfg.JwtExpAccess)).Unix(),
+	}
+	accessToken, err = jwt.NewWithClaims(jwt.SigningMethodHS256, accessClaims).SignedString([]byte(cfg.JwtSecret))
+
+	refreshClaims := jwt.MapClaims{
+		"username": username,
+		"exp":     time.Now().Add(time.Hour * time.Duration(cfg.JwtExpRefresh)).Unix(),
+	}
+	refreshToken, err = jwt.NewWithClaims(jwt.SigningMethodHS256, refreshClaims).SignedString([]byte(cfg.JwtSecret))
+
+	return
+}