client/client_OLD/javascripts/shared/challengeCheck.js

   1 // 'vname' for 'variant name' is defined when run on client side
   2 function checkChallenge(c, vname)
   3 {
   4     const vid = parseInt(c.vid);
   5     if (isNaN(vid) || vid <= 0)
   6         return "Please select a variant";
   7
   8     const mainTime = parseInt(c.mainTime);
   9     const increment = parseInt(c.increment);
  10     if (isNaN(mainTime) || mainTime <= 0)
  11         return "Main time should be strictly positive";
  12     if (isNaN(increment) || increment < 0)
  13         return "Increment must be positive";
  14
  15     // Basic alphanumeric check for players names
  16     let playerCount = 0;
  17     for (p of c.players)
  18     {
  19         if (p.name.length > 0)
  20         {
  21             if (!p.name.match(/^[\w]+$/))
  22                 return "Wrong characters in players names";
  23             playerCount++;
  24         }
  25     }
  26
  27     if (playerCount > 0 && playerCount != c.nbPlayers-1)
  28         return "None, or all of the opponent names must be filled"
  29
  30     if (typeof document !== "undefined") //client side
  31     {
  32         const V = eval(vname + "Rules");
  33         // Allow custom FEN (and check it) only for individual challenges
  34         if (c.fen.length > 0 && playerCount > 0)
  35         {
  36             if (!V.IsGoodFen(c.fen))
  37                 return "Bad FEN string";
  38         }
  39         else
  40         {
  41             // Generate a FEN
  42             c.fen = V.GenRandInitFen();
  43         }
  44     }
  45     else
  46     {
  47         // Just characters check on server:
  48         if (!c.fen.match(/^[a-zA-Z0-9, /-]*$/))
  49             return "Bad FEN string";
  50     }
  51 }
  52
  53 try { module.exports = checkChallenge; } catch(e) { } //for server