smt/middlewares/middlewares.go

package middlewares

import (
	"log"
	"net/http"

	"smt/models"
	"smt/utils/token"

	"github.com/gin-gonic/gin"
)

func JwtAuthMiddleware() gin.HandlerFunc {
	return func(c *gin.Context) {
		err := token.TokenValid(c)
		if err != nil {
			log.Printf("JwtAuthMiddleware token is not valid : '%s'\n", err)
			c.String(http.StatusUnauthorized, "Unauthorized")
			c.Abort()
			return
		}
		c.Next()
	}
}

func JwtAuthAdminMiddleware() gin.HandlerFunc {
	return func(c *gin.Context) {

		err := token.TokenValid(c)
		if err != nil {
			log.Printf("JwtAuthAdminMiddleware token is not valid : '%s'\n", err)
			c.String(http.StatusUnauthorized, "Unauthorized")
			c.Abort()
			return
		}

		// Once we know the token is valid, figure out if this user is an admin
		user_id, err := token.ExtractTokenID(c)

		if err != nil {
			log.Printf("JwtAuthAdminMiddleware could not extract user ID from context : '%s'\n", err)
			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
			c.Abort()
			return
		}

		ur, err := models.GetUserRoleByID(user_id)

		if err != nil {
			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
			c.Abort()
			return
		}
		log.Printf("JwtAuthAdminMiddleware retrieved UserRole object for UserId '%d'\n", ur.UserId)

		// Verify that the user has a role with the admin flag set
		if !ur.Admin {
			c.String(http.StatusUnauthorized, "User role is Non-Admin")
			c.Abort()
			return
		}

		// What does this do?
		c.Next()
	}
}