client/src/data/challengeCheck.js

   1
   2
   3 function timeUnitToSeconds(value, unit)
   4 {
   5   let seconds = value;
   6   switch (unit)
   7   {
   8     case 'd':
   9       seconds *= 24;
  10     case 'h':
  11       seconds *= 60;
  12     case 'm':
  13       seconds *= 60;
  14   }
  15   return seconds;
  16 }
  17
  18 function isLargerUnit(unit1, unit2)
  19 {
  20   return (unit1 == 'd' && unit2 != 'd')
  21     || (unit1 == 'h' && ['s','m'].includes(unit2))
  22     || (unit1 == 'm' && unit2 == 's');
  23 }
  24
  25 export function checkChallenge(c)
  26 {
  27     const vid = parseInt(c.vid);
  28     if (isNaN(vid) || vid <= 0)
  29         return "Please select a variant";
  30
  31   const tcParts = c.timeControl.replace(/ /g,"").split('+');
  32     const mainTime = tcParts[0].match(/([0-9]+)([smhd])/);
  33   if (!mainTime)
  34     return "Wrong time control";
  35   const mainTimeValue = parseInt(mainTime[1]);
  36   const mainTimeUnit = mainTime[2];
  37     if (isNaN(mainTimeValue) || mainTimeValue <= 0)
  38         return "Main time should be strictly positive";
  39   c.mainTime = timeUnitToSeconds(mainTimeValue, mainTimeUnit);
  40   if (tcParts.length >= 2)
  41   {
  42     const increment = tcParts[1].match(/([0-9]+)([smhd])/);
  43     if (!increment)
  44       return "Wrong time control";
  45     const incrementValue = parseInt(increment[1]);
  46     const incrementUnit = increment[2];
  47     if (isLargerUnit(incrementUnit, mainTimeUnit))
  48       return "Increment unit cannot be larger than main unit";
  49     if (isNaN(incrementValue) || incrementValue < 0)
  50       return "Increment must be positive";
  51     c.increment = timeUnitToSeconds(incrementValue, incrementUnit);
  52   }
  53   else
  54     c.increment = 0;
  55
  56     // Basic alphanumeric check for players names
  57     let playerCount = 0;
  58     for (const p of c.to)
  59     {
  60         if (p.name.length > 0)
  61         {
  62       // TODO: slightly redundant (see data/userCheck.js)
  63             if (!p.name.match(/^[\w]+$/))
  64                 return "Wrong characters in players names";
  65             playerCount++;
  66         }
  67     }
  68
  69     if (playerCount > 0 && playerCount != c.nbPlayers-1)
  70         return "None, or all of the opponent names must be filled"
  71
  72   // Allow custom FEN (and check it) only for individual challenges
  73   if (c.fen.length > 0 && playerCount > 0)
  74   {
  75     if (!V.IsGoodFen(c.fen))
  76       return "Bad FEN string";
  77   }
  78   else //generate a FEN
  79     c.fen = V.GenRandInitFen();
  80 }