refactor

internal/delivery/http/middleware/auth.go

@@ -0,0 +1,57 @@
+package middleware
+
+import (
+	"net/http"
+	"strings"
+
+	"counter/internal/infrastructure/security"
+
+	"github.com/gin-gonic/gin"
+)
+
+// AuthMiddleware validates JWT token and sets user context
+func AuthMiddleware(jwtService security.JWTService) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		authHeader := c.GetHeader("Authorization")
+		if authHeader == "" {
+			c.JSON(http.StatusUnauthorized, gin.H{"error": "Authorization header required"})
+			c.Abort()
+			return
+		}
+
+		// Extract token from "Bearer <token>"
+		tokenParts := strings.Split(authHeader, " ")
+		if len(tokenParts) != 2 || tokenParts[0] != "Bearer" {
+			c.JSON(http.StatusUnauthorized, gin.H{"error": "Invalid authorization header format"})
+			c.Abort()
+			return
+		}
+
+		tokenString := tokenParts[1]
+		claims, err := jwtService.ValidateToken(tokenString)
+		if err != nil {
+			c.JSON(http.StatusUnauthorized, gin.H{"error": "Invalid token"})
+			c.Abort()
+			return
+		}
+
+		// Set user information in context
+		userID, ok := claims["user_id"].(float64)
+		if !ok {
+			c.JSON(http.StatusUnauthorized, gin.H{"error": "Invalid token claims"})
+			c.Abort()
+			return
+		}
+
+		username, ok := claims["username"].(string)
+		if !ok {
+			c.JSON(http.StatusUnauthorized, gin.H{"error": "Invalid token claims"})
+			c.Abort()
+			return
+		}
+
+		c.Set("user_id", int(userID))
+		c.Set("username", username)
+		c.Next()
+	}
+}