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creditCard.js
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if(!dojo._hasResource["dojox.validate.creditCard"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dojox.validate.creditCard"] = true;
dojo.provide("dojox.validate.creditCard");
dojo.require("dojox.validate._base");
/*
Validates Credit Cards using account number rules in conjunction with the Luhn algorigthm
*/
dojox.validate.isValidCreditCard = function(/*String|Int*/value, /*String*/ccType){
//Summary:
// checks if type matches the # scheme, and if Luhn checksum is accurate (unless its an Enroute card, the checkSum is skipped)
//Value: Boolean
if(value&&ccType&&((ccType.toLowerCase()=='er'||dojox.validate.isValidLuhn(value))&&(dojox.validate.isValidCreditCardNumber(value,ccType.toLowerCase())))){
return true; //Boolean
}
return false; //Boolean
}
dojox.validate.isValidCreditCardNumber = function(/*String|Int*/value,/*String?*/ccType) {
//Summary:
// checks if the # matches the pattern for that card or any card types if none is specified
// value == CC #, white spaces and dashes are ignored
// ccType is of the values in cardinfo -- if Omitted it it returns a | delimited string of matching card types, or false if no matches found
//Value: Boolean
if(typeof value!='string'){
value = String(value);
}
value = value.replace(/[- ]/g,''); //ignore dashes and whitespaces
/* FIXME: not sure on all the abbreviations for credit cards,below is what each stands for atleast to my knowledge
mc: Mastercard
ec: Eurocard
vi: Visa
ax: American Express
dc: Diners Club
bl: Carte Blanch
di: Discover
jcb: JCB
er: Enroute
*/
var results=[];
var cardinfo = {
'mc':'5[1-5][0-9]{14}','ec':'5[1-5][0-9]{14}','vi':'4([0-9]{12}|[0-9]{15})',
'ax':'3[47][0-9]{13}', 'dc':'3(0[0-5][0-9]{11}|[68][0-9]{12})',
'bl':'3(0[0-5][0-9]{11}|[68][0-9]{12})','di':'6011[0-9]{12}',
'jcb':'(3[0-9]{15}|(2131|1800)[0-9]{11})','er':'2(014|149)[0-9]{11}'
};
if(ccType&&dojo.indexOf(cardinfo,ccType.toLowerCase())){
return Boolean(value.match(cardinfo[ccType.toLowerCase()])); // boolean
}else{
for(var p in cardinfo){
if(value.match('^'+cardinfo[p]+'$')!=null){
results.push(p);
}
}
return (results.length)?results.join('|'):false; // string | boolean
}
}
dojox.validate.isValidCvv = function(/*String|Int*/value, /*String*/ccType) {
//Summary:
// returns true if the security code (CCV) matches the correct format for supplied ccType
//Value: Boolean
if(typeof value!='string'){
value=String(value);
}
var format;
switch (ccType.toLowerCase()){
case 'mc':
case 'ec':
case 'vi':
case 'di':
format = '###';
break;
case 'ax':
format = '####';
break;
default:
return false; //Boolean
}
var flags = {format:format};
//FIXME? Why does isNumberFormat take an object for flags when its only parameter is either a string or an array inside the object?
if ((value.length == format.length)&&(dojox.validate.isNumberFormat(value, flags))){
return true; //Boolean
}
return false; //Boolean
}
}

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