first commit

backend/user/Middleware.go

@@ -0,0 +1,41 @@
+package user
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	"github.com/golang-jwt/jwt/v5"
+)
+
+func AuthMiddleware() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		// Read access token from cookie
+		cookie, err := c.Cookie("access_token")
+		if err != nil {
+			c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"message": "not logged in"})
+			return
+		}
+
+		token, err := jwt.Parse(cookie, func(t *jwt.Token) (any, error) {
+			return JWT_SECRET, nil
+		})
+		if err != nil || !token.Valid {
+			c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"message": "invalid token"})
+			return
+		}
+		c.Next()
+	}
+}
+
+func AuthorizeRole(roles ...string) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		userRole := c.GetString("role")
+		for _, role := range roles {
+			if userRole == role {
+				c.Next()
+				return
+			}
+			c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"message": "Forbidden"})
+		}
+	}
+}