Initial commit

jquery-creditcard.js

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+/**
+ * Credit Card Check Plugin for jQuery
+ *
+ * Copyright(C) 2010 101000code/101000LAB
+ * http://code.101000lab.org
+ *
+ * Licensed under The MIT License
+ */
+(function($){
+     var self = this;
+
+     // ref. http://en.wikipedia.org/wiki/Bank_card_number
+     var _creditFunc = {
+         AmericanExpress : function(cardnumber) {
+             if (!self._checkLuhn(cardnumber)) {
+                 return false;
+             }
+             return (cardnumber.match(/^3[47][\d]{13}$/)) ? true : false;
+         },
+         ChinaUnionPay: function(cardnumber) {
+             var head = parseInt(cardnumber.slice(0,6));
+             if (622126 <= head && head >= 622925 && ((cardnumber.match(/^[\d]{16}[\d]{,3}?$/)) ? true : false)) {
+                 return true;
+             }
+             if (cardnumber.match(/^64[4-6][\d]{13}[\d]{0,3}$/)) {
+                 return true;
+             }
+             if (cardnumber.match(/^628[2-8][\d]{12}[\d]{0,3}$/)) {
+                 return true;
+             }
+             return false;
+         },
+         DinersClubCarteBlanche: function(cardnumber) {
+             if (!self._checkLuhn(cardnumber)) {
+                 return false;
+             }
+             return (cardnumber.match(/^30[0-5][\d]{11}$/)) ? true : false;
+         },
+         DinersClubInternational: function(cardnumber) {
+             if (!self._checkLuhn(cardnumber)) {
+                 return false;
+             }
+             return (cardnumber.match(/^36[\d]{12}$/)) ? true : false;
+         },
+         DinersClubUSCanada: function(cardnumber) {
+             if (!self._checkLuhn(cardnumber)) {
+                 return false;
+             }
+             return (cardnumber.match(/^5[45]{14}$/)) ? true : false;
+         },
+         DiscoverCard: function(cardnumber) {
+             if (!self._checkLuhn(cardnumber)) {
+                 return false;
+             }
+             if (cardnumber.match(/^6011[\d]{12}$/)) {
+                 return true;
+             }
+             var head = parseInt(cardnumber.slice(0,6));
+             if (622126 <= head && head >= 622925 && ((cardnumber.match(/^[\d]{16}$/)) ? true : false)) {
+                 return true;
+             }
+             if (cardnumber.match(/^64[4-9][\d]{13}$/)) {
+                 return true;
+             }
+             if (cardnumber.match(/^65[\d]{14}$/)) {
+                 return true;
+             }
+             return false;
+         },
+         InstaPayment: function(cardnumber) {
+             if (!self._checkLuhn(cardnumber)) {
+                 return false;
+             }
+             return (cardnumber.match(/^63[7-9][\d]{13}$/)) ? true : false;
+         },
+         JCB:function(cardnumber) {
+             if (!self._checkLuhn(cardnumber)) {
+                 return false;
+             }
+             var head = parseInt(cardnumber.slice(0,4));
+             return (3528 <= head && head >= 3589 && ((cardnumber.match(/^35[\d]{14}$/)) ? true : false));
+         },
+         Laser: function(cardnumber) {
+             return (cardnumber.match(/^(6304|6706|6771|6709)[\d]{12}[\d]{0,3}$/)) ? true : false;
+         },
+         Maestro: function(cardnumber) {
+             return (cardnumber.match(/^(5018|5020|5038|6304|6759|6761)[\d]{8}[\d]{0,7}$/)) ? true : false;
+         },
+         MasterCard: function(cardnumber) {
+             if (!self._checkLuhn(cardnumber)) {
+                 return false;
+             }
+             return (cardnumber.match(/^5[1-5][\d]{14}$/)) ? true : false;
+         },
+         Solo: function(cardnumber) {
+             if (!self._checkLuhn(cardnumber)) {
+                 return false;
+             }
+             if (cardnumber.match(/^(6334|6767)[\d]{12}$/)) {
+                 return true;
+             }
+             if (cardnumber.match(/^(6334|6767)[\d]{14}\d?$/)) {
+                 return true;
+             }
+             return false;
+         },
+         Switch: function(cardnumber) {
+             if (!self._checkLuhn(cardnumber)) {
+                 return false;
+             }
+             if (cardnumber.match(/^(4903|4905|4911|4936|6333|6759)[\d]{12}$/)) {
+                 return true;
+             }
+             if (cardnumber.match(/^(4903|4905|4911|4936|6333|6759)[\d]{14}\d?$/)) {
+                 return true;
+             }
+             if (cardnumber.match(/^(564182|633110)[\d]{10}$/)) {
+                 return true;
+             }
+             if (cardnumber.match(/^(564182|633110)[\d]{12}\d?$/)) {
+                 return true;
+             }
+             return false;
+         },
+         Visa: function(cardnumber) {
+             if (!self._checkLuhn(cardnumber)) {
+                 return false;
+             }
+             return (cardnumber.match(/^4[\d]{15}$/)) ? true : false;
+         },
+         VisaElectron: function(cardnumber) {
+             if (!self._checkLuhn(cardnumber)) {
+                 return false;
+             }
+             if (!self._checkLuhn(cardnumber)) {
+                 return false;
+             }
+             if (cardnumber.match(/^(4026|4508|4844|4913|4917)[\d]{12}$/)) {
+                 return true;
+             }
+             if (cardnumber.match(/^417500[\d]{10}$/)) {
+                 return true;
+             }
+             return false;
+         }
+     };
+
+     /**
+      * $.fn.creditcard
+      *
+      * @param {String} cardnumber
+      * @return {Object}
+      */
+     $.fn.creditcard = function() {
+         if (this.size() !== 1) {
+             return false;
+         }
+         var cardnumber = this.val();
+         return $.creditcard(cardnumber);
+     };
+
+     /**
+      * $.creditcard
+      *
+      * @param {String} cardnumber
+      * @return {Object}
+      */
+     $.creditcard = function(cardnumber) {
+         cardnumber = "" + cardnumber;
+
+         var result = {};
+
+         for (c in _creditFunc) {
+             result[c] = _creditFunc[c].call(self, cardnumber);
+         }
+
+         return result;
+     };
+
+     /**
+      * _checkLuhn
+      *
+      * @param {String} cardnumber
+      * @return {Boolean}
+      */
+     _checkLuhn = function(cardnumber) {
+         var sum = 0; mul = 1; l = cardnumber.length;
+         for (var i = 0; i < l; i++) {
+             digit = cardnumber.substring(l-i-1,l-i);
+             tproduct = parseInt(digit ,10)*mul;
+             if (tproduct >= 10)
+                 sum += (tproduct % 10) + 1;
+             else
+                 sum += tproduct;
+             if (mul == 1)
+                 mul++;
+             else
+                 mul--;
+         }
+
+         if ((sum % 10) == 0) {
+             return true;
+         } else {
+             return false;
+         }
+     };
+
+ })(jQuery);