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125 lines
3.3 KiB
JavaScript
125 lines
3.3 KiB
JavaScript
dojo.provide("dojox.validate.creditCard");
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/*=====
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dojox.validate.creditCard = {
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// summary:
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// Module provides validation functions for Credit Cards, using account number
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// rules in conjunction with the Luhn algorigthm, with a plugable card info database.
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};
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=====*/
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dojo.require("dojox.validate._base");
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dojox.validate._cardInfo = {
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// summary: A dictionary list of credit card abbreviations
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//
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// description:
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//
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// A hash of valid CC abbreviations and regular expressions
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//
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// mc: Mastercard
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// ec: Eurocard
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// vi: Visa
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// ax: American Express
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// dc: Diners Club
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// bl: Carte Blanch
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// di: Discover
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// jcb: JCB
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// er: Enroute
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//
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// example:
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// Define your own card, gift-card, whatever. Starts with 7,
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// is 15 total length.
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// | dojo.mixin(dojox.validate._cardInfo, {
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// | "my":"7[0-9]{14}"
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// | });
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'mc':'5[1-5][0-9]{14}',
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'ec':'5[1-5][0-9]{14}',
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'vi':'4(?:[0-9]{12}|[0-9]{15})',
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'ax':'3[47][0-9]{13}',
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'dc':'3(?:0[0-5][0-9]{11}|[68][0-9]{12})',
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'bl':'3(?:0[0-5][0-9]{11}|[68][0-9]{12})',
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'di':'6011[0-9]{12}',
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'jcb':'(?:3[0-9]{15}|(2131|1800)[0-9]{11})',
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'er':'2(?:014|149)[0-9]{11}'
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}
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dojox.validate.isValidCreditCard = function(value, ccType){
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// summary: Validate a credit card number by type with Luhn checking.
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//
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// description:
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// Checks if a credit card type matches the # scheme in a passed value, and if
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// the Luhn checksum is accurate (unless its an Enroute card, in which case
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// the checkSum is skipped), returning a Boolean to check against.
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//
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// value: String|Int
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// A Value (credit card number) to validate
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//
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// ccType: String
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// A credit-card abbreviation.
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//
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// example:
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// | if(dojox.validate.isValidCreditCard("12345", "mc")){
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// | console.log('inconceivable');
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// | }
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return ((ccType.toLowerCase() == 'er' || dojox.validate.isValidLuhn(value)) &&
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dojox.validate.isValidCreditCardNumber(value, ccType.toLowerCase())); // Boolean
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}
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dojox.validate.isValidCreditCardNumber = function(value, ccType){
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// summary:
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// Checks if value matches the pattern for that card or any card types if none is specified
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//
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// value: String|Int
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// CC #, white spaces and dashes are ignored
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//
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// ccType: String?
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// One of the abbreviation values in `dojox.validate._cardInfo` --
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// if Omitted, function returns a `|` delimited string of matching card types,
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// or false if no matches found.
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value = String(value).replace(/[- ]/g,''); //ignore dashes and whitespaces
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var cardinfo = dojox.validate._cardInfo, results = [];
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if(ccType){
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var expr = cardinfo[ccType.toLowerCase()];
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return expr ? !!value.match(expr) : false; // boolean
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}
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for(var p in cardinfo){
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if(value.match('^' + cardinfo[p] + '$')){
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results.push(p);
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}
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}
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return results.length ? results.join('|') : false; // String | boolean
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}
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dojox.validate.isValidCvv = function(/* String|Int */value, /* String */ccType) {
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// summary:
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// Validate the security code (CCV) for a passed credit-card type.
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//
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// description:
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//
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// value:
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if(!dojo.isString(value)){
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value = String(value);
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}
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var format;
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switch (ccType.toLowerCase()){
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case 'mc':
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case 'ec':
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case 'vi':
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case 'di':
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format = '###';
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break;
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case 'ax':
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format = '####';
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break;
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}
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return !!format && value.length && dojox.validate.isNumberFormat(value, { format: format }); // Boolean
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}
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