/
card-swipe.js
217 lines (212 loc) · 8.04 KB
/
card-swipe.js
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var objectTool = require('async-objects');
var CharacterScanBuffer = require('character-scanner');
var Keyboard = {};
var extractIssuerData = function(account){
var results = {}
if(!Keyboard.Sequence.issuers) return results;
var sequence;
var subsequence;
var issuerInfo;
var width;
var issuer = false;
for(var lcv=0; lcv <= 2; lcv++){
sequence = account.substring(0,4)+account.substring(4,4+lcv);
if(issuerInfo = Keyboard.Sequence.issuers[sequence]){
if(typeof issuerInfo == 'string'){
issuer = issuerInfo;
}else if(issuerInfo.from && issuerInfo.to){
width = issuerInfo.from.length;
subsequence = account.substring(4+lcv, width);
if(subsequence >= issuerInfo.from && subsequence <= issuerInfo.to){
issuer = issuerInfo.issuer;
}
}else if(issuerInfo.in){
width = issuerInfo.in[0].length;
subsequence = account.substring(4+lcv, width);
if(issuerInfo.in.contains(subsequence)){
issuer = issuerInfo.issuer;
}
}else throw('unknown issuer node type')
}
}
if(issuer){
results.issuer = issuer;
}
return results;
};
var extractTypeData = function(account){
var results = {}
if(!Keyboard.Sequence.types) return results;
var length = account.length;
if(Keyboard.Sequence.types[length]){
objectTool.forEach(Keyboard.Sequence.types[length], function(type, prefix){
if(account.indexOf(prefix) === 0) results.type = type;
});
}else{
results.type = 'unknown';
}
return results;
};
var matchTree = function(tree, value){
var keys = Object.keys(tree);
var size = 0;
var match = false;
keys.forEach(function(key){
if(value.indexOf(key) === 0 && size < key.length){
match = key;
size = key.length
}
});
if(!match) return undefined;
};
var internalScanner;
var CreditSwipe = function(options){
if(typeof options == 'function') options = {onScan:options};
if(!options) options = {};
if(!options.scanner && !internalScanner) internalScanner = new CharacterScanBuffer();
var scanner = options.scanner || internalScanner;
if(!options.onScan) throw('Missing \'onScan\' option!');
var res = [];
var callback = options.onScan || options.callback;
scanner.addScanner({
name:'credit-swipe',
scan: function(str){
return str.match(/%B[0-9 ]{13,18}\^[\/A-Z ]+\^[0-9]{13,}\?/mi) || str.match(/;[0-9]{13,16}=[0-9]{13,}\?/mi);
}
});
var swipes = {};
var finalSwipe = function(results, cb){
if(!swipes[results.account]) swipes[results.account] = results;
else{
Object.keys(results).forEach((key)=>{
swipes[results.account][key] = results[key];
});
}
setTimeout(()=>{
let swipe = swipes[results.account];
delete swipes[results.account];
if(swipe) cb(swipe)
}, 200);
}
scanner.on('credit-swipe', function(res){
var result = res[0] || res;
var results = {};
var something = false;
if(result.substring(0,1) == '%'){
var parts = result.substring(2,result.length-2).split('^');
results.account = parts[0];
if(parts[1].indexOf('/') != -1){
var last = parts[1].substring(0, parts[1].indexOf('/'));
last = last.substring(0,1).toUpperCase()+last.substring(1, last.length).toLowerCase();
results.last_name = last;
var first = parts[1].substring(parts[1].indexOf('/')+1, parts[1].length);
if(first.indexOf(' ') != -1){
results.middle_initial = first.substring(first.indexOf(' ')+1, first.length).trim();
first = first.substring(0, first.indexOf(' '));
}
first = first.substring(0,1).toUpperCase()+first.substring(1, first.length).toLowerCase();
results.first_name = first;
results.name = first+' '+last;
}else results.name = parts[1];
results.exp_year = parts[2].substring(0, 2);
results.exp_month = parts[2].substring(2, 4);
results.expiration = new Date(results.exp_month+'/01/'+results.exp_year);
results.track_one = result;
something = true;
}
if(result.substring(0,1) == ';'){
var parts = result.substring(1,result.length-1).split('=');
results.account = parts[0];
results.exp_year = parts[1].substring(0, 2);
results.exp_month = parts[1].substring(2, 4);
results.expiration = new Date(results.exp_month+'/01/'+results.exp_year);
results.track_two = result;
something = true;
}
if(Keyboard.Sequence.issuers && results.account){
results = objectTool.merge(results, extractIssuerData(results.account));
}
if(Keyboard.Sequence.types && results.account){
results = objectTool.merge(results, extractTypeData(results.account));
}
if(options.luhn){
results['valid'] = require("luhn").validate(results.account);
}
finalSwipe(results, callback);
});
};
Keyboard.Sequence = {};
Keyboard.Sequence.types = require('./card_type');
var intKeys = {};
Object.keys(Keyboard.Sequence.types).forEach(function(stringKey){
intKeys[parseInt(stringKey)] = Keyboard.Sequence.types[stringKey];
});
Keyboard.Sequence.types = intKeys;
//todo: switch to new format:
// Issuer Name [Card Name]<Network>|country|{details}
Keyboard.Sequence.issuers = require('./issuer_data');
module.exports = CreditSwipe;
module.exports.Scanner = CharacterScanBuffer;
module.exports.types = Keyboard.Sequence.types;
module.exports.generate = function(type, options){
if(!options) options = {};
var get = function(name){
if(options[name]) return options[name];
else{
var result = module.exports.generate(name, options);
options[name] = result;
return result;
}
};
switch(type){
case 'account':
var luhn = require("luhn");
var keys = Object.keys(Keyboard.Sequence.types);
var size = keys[Math.floor(Math.random()*keys.length)];
var options = Keyboard.Sequence.types[size];
var number = '';
objectTool.random(options, function(item, prefix){
number = prefix;
});
while(number.length < size){
number += ''+Math.floor(Math.random()*10);
}
while(!luhn.validate(number)) number = (parseInt(number)+1)+'';
return number;
break;
case 'expiration':
return '1504';
case 'list_name':
return 'Ed Beggler';
case 'track_one':
return '%B'+get('account')+'^'+get('list_name').toUpperCase()+'^'+get('expiration')+'333'+'333333' /* 'A', 'BBB' or 'CCCC'*/ +'?';
case 'track_two':
return ';'+get('account')+'='+get('expiration')+'333'+'333333' /* 'A', 'BBB' or 'CCCC'*/ +'?';
case 'track_data' :
return [
get('track_one'),
get('track_two')
]
default : return 'blah';
}
};
module.exports.stdIn = function(){
process.stdin.setRawMode();
process.stdin.resume();
process.stdin.on('data', function (chunk, key) {
chunk = chunk.toString();
for(var lcv=0; lcv < chunk.length; lcv++){
if(internalScanner) internalScanner.input(chunk[lcv]);
}
if (key && key.ctrl && key.name == 'c') process.exit();
});
return CreditSwipe;
}
module.exports.fake = function(scanner, options){
var tracks = module.exports.generate('track_data', options);
tracks.forEach(function(track){
for(var lcv=0; lcv < track.length; lcv++){
scanner.input(track[lcv]);
}
});
}