fix(handlers): Upload io.Copy error → 500 not 413 (B6), Me distinguishes no-rows from DB errors (B7)

2026-09-14 19:42:25 +08:00
parent b82a891c50
commit 0e62d4aa18
2 changed files with 14 additions and 2 deletions
@@ -146,10 +146,17 @@ func (h *H) Upload(c *gin.Context) {
 		err(c, http.StatusInternalServerError, "internal", "create tmp")
 		return
 	}
+	// B6: only MaxBytesError returns 413; other io.Copy failures (disk full,
+	// connection drop) return 500.
 	if _, e := io.Copy(out, src); e != nil {
 		out.Close()
 		os.Remove(tmp)
-		err(c, http.StatusRequestEntityTooLarge, "too_large", "upload failed")
+		var mbe *http.MaxBytesError
+		if errors.As(e, &mbe) {
+			err(c, http.StatusRequestEntityTooLarge, "too_large", "file exceeds upload limit")
+			return
+		}
+		err(c, http.StatusInternalServerError, "internal", "upload failed")
 		return
 	}
 	out.Close()