sojorn/go-backend/internal/middleware/admin.go
2026-02-15 00:33:24 -06:00

42 lines
1.1 KiB
Go

package middleware
import (
"net/http"
"github.com/gin-gonic/gin"
"github.com/jackc/pgx/v5/pgxpool"
"github.com/rs/zerolog/log"
)
// AdminMiddleware checks that the authenticated user has role = 'admin' in profiles.
// Must be placed AFTER AuthMiddleware so that "user_id" is already in context.
func AdminMiddleware(pool *pgxpool.Pool) gin.HandlerFunc {
return func(c *gin.Context) {
userID, exists := c.Get("user_id")
if !exists {
c.JSON(http.StatusUnauthorized, gin.H{"error": "Authentication required"})
c.Abort()
return
}
var role string
err := pool.QueryRow(c.Request.Context(),
`SELECT COALESCE(role, 'user') FROM public.profiles WHERE id = $1::uuid`, userID).Scan(&role)
if err != nil {
log.Error().Err(err).Str("user_id", userID.(string)).Msg("Failed to check admin role")
c.JSON(http.StatusForbidden, gin.H{"error": "Access denied"})
c.Abort()
return
}
if role != "admin" {
c.JSON(http.StatusForbidden, gin.H{"error": "Admin access required"})
c.Abort()
return
}
c.Set("is_admin", true)
c.Next()
}
}