Mask 16 digit credit card but not 20 digit numbers

[deepaltrivedi]

Hi All - We have a change in requirement where we want to mask 16 digit credit card information in inbound email body but not 20 digit numbers as they are not credit card. I've below script that works perfectly but it masks any number over 12 digits -- i don't want to mask 20 digits number.

Thoughts on how i need to modify the bolded portion??

(function executeRule(current, previous /*null when async*/) {
var emailVars = [current.body,current.subject,current.body_text];
var arr = [];
for(e = 0; e < emailVars.length; e++) {


var wt = emailVars[e].match(/(https:\/\/.*wetransfer\.com)(.*)[^\s]/g);
var matches = emailVars[e].match(/(https:\/\/.*wetransfer\.com)(.*)[^\s]|([\d]){4}([ -])?([\d]){4}([ -])?([\d]){4}([ -])?([\d]){4}/g);
if(matches){
for(var i = 0; i < 16; i++) {
if(!wt || matches[i] != wt[0]) {
var numCount = 0;
var maskedCredCard = '';
for(var j = 0; j < matches[i].length; j++) {
if(matches[i][j] == '-' ||matches[i][j] == ' '|| numCount >= 12) {
maskedCredCard += matches[i][j];
}
else if(numCount < 12) {
maskedCredCard += '*';
numCount++;
}
}
if(e == 0) {
current.body = current.body.replace(matches[i] ,maskedCredCard);
}
else if(e == 1) {
current.subject = current.subject.replace(matches[i] ,maskedCredCard);
}
else if(e == 2) {
current.body_text = current.body_text.replace(matches[i], maskedCredCard);
}
} //closes WT if statement
}//closes matches for loop


} //closes if there are matches
} //closes loop through email variables
})(current, previous);

[Facelesss]

Asifnoor Thank you very much! I also considered how to accomplish it, and your assistance was very appreciated.

[Alienka]

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