Porting Javascript
| From: | Chronos | Date: | Tue, 03 Oct 2000 06:09:55 +0000 |
| Subject: | Porting Javascript | ||
| Groups: | php.general | ||
| Request: | Send a blank email to php-general+get-18370@lists.php.net to get a copy of this message | ||
Hello, I am looking for someone to help port over a credit card verification
script from javascript to PHP.
If anyone is interested here is the javascript. If you manage to get it
going please let the group know.
I have also added a link to a txt file with the source here:
http://www.budcommercials.com/javasource.txt
Thank you
<script ID="clientEventHandlersJS" LANGUAGE="javascript">
<!--
function form1_onsubmit(theForm) {
if (theForm.name_on_card.value == "")
{
alert("Please enter a value for the \"Name on card\" field.");
theForm.name_on_card.focus();
return (false);
}
if (theForm.street.value == "")
{
alert("Please enter a value for the \"Street\" field.");
theForm.street.focus();
return (false);
}
if (theForm.city.value == "")
{
alert("Please enter a value for the \"City\" field.");
theForm.city.focus();
return (false);
}
if (theForm.zip.value == "")
{
alert("Please enter a value for the \"Zip\" field.");
theForm.zip.focus();
return (false);
}
if (theForm.country.value == "")
{
alert("Please enter a value for the \"Country\" field.");
theForm.country.focus();
return (false);
}
if (theForm.phone.value == "")
{
alert("Please enter a value for the \"Phone\" field.");
theForm.phone.focus();
return (false);
}
if (theForm.email.value == "")
{
alert("Please enter a value for the \"Email\" field.");
theForm.country.focus();
return (false);
}
if (theForm.CardNumber.value == "")
{
alert("Please enter a value for the \"Card Number\" field.");
theForm.CardNumber.focus();
return (false);
}
if (CheckCardNumber(theForm) == false)
{
theForm.CardNumber.focus();
return (false);
}
if (theForm.user_name.value == "")
{
alert("Please enter a value for the \"Domain Name\" field.");
theForm.user_name.focus();
return (false);
}
return (true);
}
//begin credit card check
var Cards = new makeArray(5);
Cards[0] = new CardType("MasterCard", "51,52,53,54,55", "16");
var MasterCard = Cards[0];
Cards[1] = new CardType("VisaCard", "4", "13,16");
var VisaCard = Cards[1];
Cards[2] = new CardType("AmExCard", "34,37", "15");
var AmExCard = Cards[2];
Cards[3] = new CardType("DiscoverCard", "6011", "16");
var DiscoverCard = Cards[3];
var LuhnCheckSum = Cards[4] = new CardType();
/*************************************************************************\
CheckCardNumber(form)
function called when users click the "check" button.
\*************************************************************************/
function CheckCardNumber(form) {
var tmpyear;
if (form.ExpYear.value > 96)
tmpyear = "19" + form.ExpYear.value;
else if (form.ExpYear.value < 21)
tmpyear = "20" + form.ExpYear.value;
else {
alert("The Expiration Year is not valid.");
return (false);
}
tmpmonth = form.ExpMon.options[form.ExpMon.selectedIndex].value;
// The following line doesn't work in IE3, you need to change it
// to something like "(new CardType())...".
// if (!CardType().isExpiryDate(tmpyear, tmpmonth)) {
if (!(new CardType()).isExpiryDate(tmpyear, tmpmonth)) {
alert("This card has already expired!");
return (false);
}
card = form.CardType.options[form.CardType.selectedIndex].value;
var retval = eval(card + ".checkCardNumber(\"" + form.CardNumber.value +
"\", " + tmpyear + ", " + tmpmonth + ");");
cardname = "";
if (retval){
// comment this out if used on an order form
//alert("This card number appears to be valid.");
return (true);
}
else {
// The cardnumber has the valid luhn checksum, but we want to know which
// cardtype it belongs to.
for (var n = 0; n < Cards.size; n++) {
if (Cards[n].checkCardNumber(form.CardNumber.value, tmpyear, tmpmonth)) {
cardname = Cards[n].getCardType();
break;
}
}
if (cardname.length > 0) {
alert("This looks like a " + cardname + " number, not a " + card + "
number.");
return (false);
}
else {
alert("This card number is not valid.");
return (false);
}
}
}
/*************************************************************************\
Object CardType([String cardtype, String rules, String len, int year,
int month])
cardtype : type of card, eg: MasterCard, Visa, etc.
rules : rules of the cardnumber, eg: "4", "6011", "34,37".
len : valid length of cardnumber, eg: "16,19", "13,16".
year : year of expiry date.
month : month of expiry date.
eg:
var VisaCard = new CardType("Visa", "4", "16");
var AmExCard = new CardType("AmEx", "34,37", "15");
\*************************************************************************/
function CardType() {
var n;
var argv = CardType.arguments;
var argc = CardType.arguments.length;
this.objname = "object CardType";
var tmpcardtype = (argc > 0) ? argv[0] : "CardObject";
var tmprules = (argc > 1) ? argv[1] : "0,1,2,3,4,5,6,7,8,9";
var tmplen = (argc > 2) ? argv[2] : "13,14,15,16,19";
this.setCardNumber = setCardNumber; // set CardNumber method.
this.setCardType = setCardType; // setCardType method.
this.setLen = setLen; // setLen method.
this.setRules = setRules; // setRules method.
this.setExpiryDate = setExpiryDate; // setExpiryDate method.
this.setCardType(tmpcardtype);
this.setLen(tmplen);
this.setRules(tmprules);
if (argc > 4)
this.setExpiryDate(argv[3], argv[4]);
this.checkCardNumber = checkCardNumber; // checkCardNumber method.
this.getExpiryDate = getExpiryDate; // getExpiryDate method.
this.getCardType = getCardType; // getCardType method.
this.isCardNumber = isCardNumber; // isCardNumber method.
this.isExpiryDate = isExpiryDate; // isExpiryDate method.
this.luhnCheck = luhnCheck;// luhnCheck method.
return this;
}
/*************************************************************************\
boolean checkCardNumber([String cardnumber, int year, int month])
return true if cardnumber pass the luhncheck and the expiry date is
valid, else return false.
\*************************************************************************/
function checkCardNumber() {
var argv = checkCardNumber.arguments;
var argc = checkCardNumber.arguments.length;
var cardnumber = (argc > 0) ? argv[0] : this.cardnumber;
var year = (argc > 1) ? argv[1] : this.year;
var month = (argc > 2) ? argv[2] : this.month;
this.setCardNumber(cardnumber);
this.setExpiryDate(year, month);
if (!this.isCardNumber())
return false;
if (!this.isExpiryDate())
return false;
return true;
}
/*************************************************************************\
String getCardType()
return the cardtype.
\*************************************************************************/
function getCardType() {
return this.cardtype;
}
/*************************************************************************\
String getExpiryDate()
return the expiry date.
\*************************************************************************/
function getExpiryDate() {
return this.month + "/" + this.year;
}
/*************************************************************************\
boolean isCardNumber([String cardnumber])
return true if cardnumber pass the luhncheck and the rules, else return
false.
\*************************************************************************/
function isCardNumber() {
var argv = isCardNumber.arguments;
var argc = isCardNumber.arguments.length;
var cardnumber = (argc > 0) ? argv[0] : this.cardnumber;
if (!this.luhnCheck())
return false;
for (var n = 0; n < this.len.size; n++)
if (cardnumber.toString().length == this.len[n]) {
for (var m = 0; m < this.rules.size; m++) {
var headdigit = cardnumber.substring(0, this.rules[m].toString().length);
if (headdigit == this.rules[m])
return true;
}
return false;
}
return false;
}
/*************************************************************************\
boolean isExpiryDate([int year, int month])
return true if the date is a valid expiry date,
else return false.
\*************************************************************************/
function isExpiryDate() {
var argv = isExpiryDate.arguments;
var argc = isExpiryDate.arguments.length;
year = argc > 0 ? argv[0] : this.year;
month = argc > 1 ? argv[1] : this.month;
if (!isNum(year+""))
return false;
if (!isNum(month+""))
return false;
today = new Date();
expiry = new Date(year, month);
if (today.getTime() > expiry.getTime())
return false;
else
return true;
}
/*************************************************************************\
boolean isNum(String argvalue)
return true if argvalue contains only numeric characters,
else return false.
\*************************************************************************/
function isNum(argvalue) {
argvalue = argvalue.toString();
if (argvalue.length == 0)
return false;
for (var n = 0; n < argvalue.length; n++)
if (argvalue.substring(n, n+1) < "0" || argvalue.substring(n, n+1) >
"9")
return false;
return true;
}
/*************************************************************************\
boolean luhnCheck([String CardNumber])
return true if CardNumber pass the luhn check else return false.
Reference: http://www.ling.nwu.edu/~sburke/pub/luhn_lib.pl
\*************************************************************************/
function luhnCheck() {
var argv = luhnCheck.arguments;
var argc = luhnCheck.arguments.length;
var CardNumber = argc > 0 ? argv[0] : this.cardnumber;
if (! isNum(CardNumber)) {
return false;
}
var no_digit = CardNumber.length;
var oddoeven = no_digit & 1;
var sum = 0;
for (var count = 0; count < no_digit; count++) {
var digit = parseInt(CardNumber.charAt(count));
if (!((count & 1) ^ oddoeven)) {
digit *= 2;
if (digit > 9)
digit -= 9;
}
sum += digit;
}
if (sum % 10 == 0)
return true;
else
return false;
}
/*************************************************************************\
ArrayObject makeArray(int size)
return the array object in the size specified.
\*************************************************************************/
function makeArray(size) {
this.size = size;
return this;
}
/*************************************************************************\
CardType setCardNumber(cardnumber)
return the CardType object.
\*************************************************************************/
function setCardNumber(cardnumber) {
this.cardnumber = cardnumber;
return this;
}
/*************************************************************************\
CardType setCardType(cardtype)
return the CardType object.
\*************************************************************************/
function setCardType(cardtype) {
this.cardtype = cardtype;
return this;
}
/*************************************************************************\
CardType setExpiryDate(year, month)
return the CardType object.
\*************************************************************************/
function setExpiryDate(year, month) {
this.year = year;
this.month = month;
return this;
}
/*************************************************************************\
CardType setLen(len)
return the CardType object.
\*************************************************************************/
function setLen(len) {
// Create the len array.
if (len.length == 0 || len == null)
len = "13,14,15,16,19";
var tmplen = len;
n = 1;
while (tmplen.indexOf(",") != -1) {
tmplen = tmplen.substring(tmplen.indexOf(",") + 1, tmplen.length);
n++;
}
this.len = new makeArray(n);
n = 0;
while (len.indexOf(",") != -1) {
var tmpstr = len.substring(0, len.indexOf(","));
this.len[n] = tmpstr;
len = len.substring(len.indexOf(",") + 1, len.length);
n++;
}
this.len[n] = len;
return this;
}
/*************************************************************************\
CardType setRules()
return the CardType object.
\*************************************************************************/
function setRules(rules) {
// Create the rules array.
if (rules.length == 0 || rules == null)
rules = "0,1,2,3,4,5,6,7,8,9";
var tmprules = rules;
n = 1;
while (tmprules.indexOf(",") != -1) {
tmprules = tmprules.substring(tmprules.indexOf(",") + 1, tmprules.length);
n++;
}
this.rules = new makeArray(n);
n = 0;
while (rules.indexOf(",") != -1) {
var tmpstr = rules.substring(0, rules.indexOf(","));
this.rules[n] = tmpstr;
rules = rules.substring(rules.indexOf(",") + 1, rules.length);
n++;
}
this.rules[n] = rules;
return this;
}
// End -->
</script>