client/src/data/challengeCheck.js

   1 import { extractTime } from "@/utils/timeControl";
   2
   3 export function checkChallenge(c)
   4 {
   5   const vid = parseInt(c.vid);
   6   if (isNaN(vid) || vid <= 0)
   7     return "Please select a variant";
   8
   9   const tc = extractTime(c.cadence);
  10   if (!tc)
  11     return "Wrong time control";
  12
  13   // Basic alphanumeric check for opponent name
  14   if (!!c.to)
  15   {
  16      // NOTE: slightly redundant (see data/userCheck.js)
  17     if (!c.to.match(/^[\w]+$/))
  18       return "Wrong characters in opponent name";
  19   }
  20
  21   // Allow custom FEN (and check it) only for individual challenges
  22   if (c.fen.length > 0 && !!c.to)
  23   {
  24     if (!V.IsGoodFen(c.fen))
  25       return "Bad FEN string";
  26   }
  27   else
  28     c.fen = "";
  29 }