Separate client and server codes. Keep everything in one git repo for simplicity

[vchess.git] / client / client_OLD / javascripts / shared / challengeCheck.js

diff --git a/client/client_OLD/javascripts/shared/challengeCheck.js b/client/client_OLD/javascripts/shared/challengeCheck.js
new file mode 100644 (file)
index 0000000..85d8571
--- /dev/null
+++ b/client/client_OLD/javascripts/shared/challengeCheck.js
@@ -0,0 +1,53 @@
+// 'vname' for 'variant name' is defined when run on client side
+function checkChallenge(c, vname)
+{
+       const vid = parseInt(c.vid);
+       if (isNaN(vid) || vid <= 0)
+               return "Please select a variant";
+
+       const mainTime = parseInt(c.mainTime);
+       const increment = parseInt(c.increment);
+       if (isNaN(mainTime) || mainTime <= 0)
+               return "Main time should be strictly positive";
+       if (isNaN(increment) || increment < 0)
+               return "Increment must be positive";
+
+       // Basic alphanumeric check for players names
+       let playerCount = 0;
+       for (p of c.players)
+       {
+               if (p.name.length > 0)
+               {
+                       if (!p.name.match(/^[\w]+$/))
+                               return "Wrong characters in players names";
+                       playerCount++;
+               }
+       }
+
+       if (playerCount > 0 && playerCount != c.nbPlayers-1)
+               return "None, or all of the opponent names must be filled"
+
+       if (typeof document !== "undefined") //client side
+       {
+               const V = eval(vname + "Rules");
+               // Allow custom FEN (and check it) only for individual challenges
+               if (c.fen.length > 0 && playerCount > 0)
+               {
+                       if (!V.IsGoodFen(c.fen))
+                               return "Bad FEN string";
+               }
+               else
+               {
+                       // Generate a FEN
+                       c.fen = V.GenRandInitFen();
+               }
+       }
+       else
+       {
+               // Just characters check on server:
+               if (!c.fen.match(/^[a-zA-Z0-9, /-]*$/))
+                       return "Bad FEN string";
+       }
+}
+
+try { module.exports = checkChallenge; } catch(e) { } //for server