feat: jwt and check

internal/middleware/jwt.go

@@ -0,0 +1,41 @@
+// internal/middleware/jwt.go
+package middleware
+
+import (
+	"net/http"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+
+	"feedsystem_video_go/internal/auth"
+)
+
+// JWTAuth check jwt token
+func JWTAuth() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		authHeader := c.GetHeader("Authorization")
+		if authHeader == "" {
+			c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"error": "missing authorization header"})
+			return
+		}
+
+		parts := strings.SplitN(authHeader, " ", 2)
+		if len(parts) != 2 || !strings.EqualFold(parts[0], "Bearer") {
+			c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"error": "invalid authorization header"})
+			return
+		}
+
+		tokenString := parts[1]
+
+		claims, err := auth.ParseToken(tokenString)
+		if err != nil {
+			c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"error": "invalid or expired token"})
+			return
+		}
+
+		c.Set("userID", claims.UserID)
+		c.Set("username", claims.Username)
+
+		c.Next()
+	}
+}