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/**
* Authorize.Net enrol plugin implementation.
*
* @package enrol
* @subpackage authorize
* @copyright 2010 Eugene Venter
* @author Eugene Venter
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
require_once($CFG->libdir.'/formslib.php');
class enrol_authorize_form extends moodleform
{
protected $instance;
function definition() {
global $USER;
$mform = $this->_form;
$this->instance = $this->_customdata;
$plugin = enrol_get_plugin('authorize');
$paymentmethodsenabled = get_list_of_payment_methods();
$paymentmethod = optional_param('paymentmethod', $paymentmethodsenabled[0], PARAM_ALPHA);
if (!in_array($paymentmethod, $paymentmethodsenabled)) {
print_error('invalidpaymentmethod', '', '', $paymentmethod);
}
$othermethodstr = $this->other_method_available($paymentmethod);
if ($othermethodstr) {
$mform->addElement('static', '', '' . $othermethodstr . '
', '');
}
$mform->addElement('hidden', 'id');
$mform->setType('id', PARAM_INT);
$mform->setDefault('id', $this->instance->courseid);
$mform->addElement('hidden', 'instanceid');
$mform->setType('instanceid', PARAM_INT);
$mform->setDefault('instanceid', $this->instance->id);
$mform->addElement('hidden', 'paymentmethod', $paymentmethod);
$mform->setType('paymentmethod', PARAM_ALPHA);
$firstlastnamestr = (AN_METHOD_CC == $paymentmethod) ? get_string('nameoncard', 'enrol_authorize') : get_string('echeckfirslasttname', 'enrol_authorize');
$mform->addElement('text', 'firstname', get_string('firstnameoncard', 'enrol_authorize'), 'size="16"');
$mform->addElement('text', 'lastname', get_string('lastnameoncard', 'enrol_authorize'), 'size="16"');
$mform->addRule('firstname', get_string('missingfirstname'), 'required', null, 'client');
$mform->addRule('lastname', get_string('missinglastname'), 'required', null, 'client');
$mform->setType('firstname', PARAM_ALPHANUM);
$mform->setType('lastname', PARAM_ALPHANUM);
$mform->setDefault('firstname', $USER->firstname);
$mform->setDefault('lastname', $USER->lastname);
if (AN_METHOD_CC == $paymentmethod)
{
$mform->addElement('passwordunmask', 'cc', get_string('ccno', 'enrol_authorize'), 'size="20"');
$mform->setType('cc', PARAM_ALPHANUM);
$mform->setDefault('cc', '');
$mform->addRule('cc', get_string('missingcc', 'enrol_authorize'), 'required', null, 'client');
$mform->addRule('cc', get_string('ccinvalid', 'enrol_authorize'), 'numeric', null, 'client');
$monthsmenu = array('' => get_string('choose'));
for ($i = 1; $i <= 12; $i++) {
$monthsmenu[$i] = userdate(gmmktime(12, 0, 0, $i, 15, 2000), "%B");
}
$nowdate = getdate();
$startyear = $nowdate["year"] - 1;
$endyear = $startyear + 20;
$yearsmenu = array('' => get_string('choose'));
for ($i = $startyear; $i < $endyear; $i++) {
$yearsmenu[$i] = $i;
}
$mform->addElement('select', 'ccexpiremm', get_string('expiremonth', 'enrol_authorize'), $monthsmenu);
$mform->addElement('select', 'ccexpireyyyy', get_string('expireyear', 'enrol_authorize'), $yearsmenu);
$mform->addRule('ccexpiremm', get_string('missingccexpiremonth', 'enrol_authorize'), 'required', null, 'client');
$mform->addRule('ccexpireyyyy', get_string('missingccexpireyear', 'enrol_authorize'), 'required', null, 'client');
$mform->setType('ccexpiremm', PARAM_INT);
$mform->setType('ccexpireyyyy', PARAM_INT);
$mform->setDefault('ccexpiremm', '');
$mform->setDefault('ccexpireyyyy', '');
$creditcardsmenu = array('' => get_string('choose')) + get_list_of_creditcards();
$mform->addElement('select', 'cctype', get_string('cctype', 'enrol_authorize'), $creditcardsmenu);
$mform->setType('cctype', PARAM_ALPHA);
$mform->addRule('cctype', get_string('missingcctype', 'enrol_authorize'), 'required', null, 'client');
$mform->setDefault('cctype', '');
$mform->addElement('text', 'cvv', get_string('ccvv', 'enrol_authorize'), 'size="4"');
$mform->setType('cvv', PARAM_ALPHANUM);
$mform->setDefault('cvv', '');
$mform->addRule('cvv', get_string('missingcvv', 'enrol_authorize'), 'required', null, 'client');
$mform->addRule('cvv', get_string('missingcvv', 'enrol_authorize'), 'numeric', null, 'client');
if ($plugin->get_config('an_authcode')) {
$ccauthgrp = array();
$ccauthgrp[] = &$mform->createElement('checkbox', 'haveauth', null, get_string('haveauthcode', 'enrol_authorize'));
$ccauthgrp[] = &$mform->createElement('static', 'nextline', null, '
');
$ccauthgrp[] = &$mform->createElement('text', 'ccauthcode', '', 'size="8"');
$mform->addGroup($ccauthgrp, 'ccauthgrp', get_string('authcode', 'enrol_authorize'), ' ', false);
$ccauthgrprules = array();
$ccauthgrprules['ccauthcode'][] = array(get_string('missingccauthcode', 'enrol_authorize'), 'numeric', null, 'client');
$mform->addGroupRule('ccauthgrp', $ccauthgrprules);
$mform->setDefault('haveauth', '');
$mform->setDefault('ccauthcode', '');
}
if ($plugin->get_config('an_avs')) {
$mform->addElement('header', '', ' ' . get_string('address'), '');
$mform->addElement('text', 'ccaddress', get_string('address'), 'size="30"');
$mform->setType('ccaddress', PARAM_ALPHANUM);
$mform->setDefault('ccaddress', $USER->address);
$mform->addRule('ccaddress', get_string('missingaddress', 'enrol_authorize'), 'required', null, 'client');
$mform->addElement('text', 'cccity', get_string('cccity', 'enrol_authorize'), 'size="14"');
$mform->addElement('text', 'ccstate', get_string('ccstate', 'enrol_authorize'), 'size="8"');
$mform->addRule('cccity', get_string('missingcity'), 'required', null, 'client');
$mform->setType('cccity', PARAM_ALPHANUM);
$mform->setType('ccstate', PARAM_ALPHANUM);
$mform->setDefault('cccity', $USER->city);
$mform->setDefault('ccstate', '');
$mform->addElement('select', 'cccountry', get_string('country'), get_string_manager()->get_list_of_countries());
$mform->addRule('cccountry', get_string('missingcountry'), 'required', null, 'client');
$mform->setType('cccountry', PARAM_ALPHA);
$mform->setDefault('cccountry', $USER->country);
}
else {
$mform->addElement('hidden', 'ccstate', '');
$mform->setType('ccstate', PARAM_ALPHANUM);
$mform->addElement('hidden', 'ccaddress', $USER->address);
$mform->setType('ccaddress', PARAM_ALPHANUM);
$mform->addElement('hidden', 'cccity', $USER->city);
$mform->setType('cccity', PARAM_ALPHANUM);
$mform->addElement('hidden', 'cccountry', $USER->country);
$mform->setType('ccountry', PARAM_ALPHA);
$mform->setDefault('cccountry', $USER->country);
}
} elseif (AN_METHOD_ECHECK == $paymentmethod) {
$mform->addElement('text', 'abacode', get_string('echeckabacode', 'enrol_authorize'), 'size="9" maxlength="9"');
$mform->setType('abacode', PARAM_ALPHANUM);
$mform->setDefault('abacode', '');
$mform->addRule('abacode', get_string('missingaba', 'enrol_authorize'), 'required', null, 'client');
$mform->addRule('abacode', get_string('missingaba', 'enrol_authorize'), 'numeric', null, 'client');
$mform->addElement('text', 'accnum', get_string('echeckaccnum', 'enrol_authorize'), 'size="20" maxlength="20"');
$mform->setType('accnum', PARAM_ALPHANUM);
$mform->setDefault('accnum', '');
$mform->addRule('accnum', get_string('invalidaccnum', 'enrol_authorize'), 'required', null, 'client');
$mform->addRule('accnum', get_string('invalidaccnum', 'enrol_authorize'), 'numeric', null, 'client');
$acctypes = array();
$acctypesenabled = get_list_of_bank_account_types();
foreach ($acctypesenabled as $key) {
$acctypes[$key] = get_string("echeck".strtolower($key), "enrol_authorize");
}
$acctypes = array('' => get_string('choose')) + $acctypes;
$mform->addElement('select', 'acctype', get_string('echeckacctype', 'enrol_authorize'), $acctypes);
$mform->setType('acctype', PARAM_ALPHA);
$mform->addRule('acctype', get_string('invalidacctype', 'enrol_authorize'), 'required', null, 'client');
$mform->setDefault('acctype', '');
$mform->addElement('text', 'bankname', get_string('echeckbankname', 'enrol_authorize'), 'size="20" maxlength="50"');
$mform->setType('bankname', PARAM_ALPHANUM);
$mform->setDefault('bankname', '');
$mform->addRule('bankname', get_string('missingbankname', 'enrol_authorize'), 'required', null, 'client');
}
$mform->addElement('text', 'cczip', get_string('zipcode', 'enrol_authorize'), 'size="5"');
$mform->setType('cczip', PARAM_ALPHANUM);
$mform->setDefault('cczip', '');
$mform->addRule('cczip', get_string('missingzip', 'enrol_authorize'), 'required', null, 'client');
$this->add_action_buttons(false, get_string('sendpaymentbutton', 'enrol_authorize'));
}
function validation($data, $files) {
$errors = parent::validation($data, $files);
$plugin = enrol_get_plugin('authorize');
if (AN_METHOD_CC == $data['paymentmethod'])
{
if (!in_array($data['cctype'], array_keys(get_list_of_creditcards()))) {
$errors['cctype'] = get_string('missingcctype', 'enrol_authorize');
}
$expdate = sprintf("%02d", intval($data['ccexpiremm'])) . $data['ccexpireyyyy'];
$validcc = $this->validate_cc($data['cc'], $data['cctype'], $expdate);
if (!$validcc) {
if ($validcc === 0) {
$errors['ccexpiremm'] = get_string('ccexpired', 'enrol_authorize');
}
else {
$errors['cc'] = get_string('ccinvalid', 'enrol_authorize');
}
}
if ($plugin->get_config('an_authcode') && !empty($data['haveauth']) && empty($data['ccauthcode'])) {
$errors['ccauthgrp'] = get_string('missingccauthcode', 'enrol_authorize');
}
}
elseif (AN_METHOD_ECHECK == $data['paymentmethod'])
{
if (!$this->validate_aba($data['abacode'])) {
$errors['abacode'] = get_string('invalidaba', 'enrol_authorize');
}
if (!in_array($data['acctype'], get_list_of_bank_account_types())) {
$errors['acctype'] = get_string('invalidacctype', 'enrol_authorize');
}
}
return $errors;
}
private function other_method_available($currentmethod)
{
if ($currentmethod == AN_METHOD_CC) {
$otheravailable = in_array(AN_METHOD_ECHECK, get_list_of_payment_methods());
$url = 'index.php?id='.$this->instance->courseid.'&paymentmethod='.AN_METHOD_ECHECK;
$stringtofetch = 'usingecheckmethod';
} else {
$otheravailable = in_array(AN_METHOD_CC, get_list_of_payment_methods());
$url = 'index.php?id='.$this->instance->courseid.'&paymentmethod='.AN_METHOD_CC;
$stringtofetch = 'usingccmethod';
}
if ($otheravailable) {
$a = new stdClass;
$a->url = $url;
return get_string($stringtofetch, "enrol_authorize", $a);
}
else {
return '';
}
}
private function validate_aba($aba)
{
if (preg_match("/^[0-9]{9}$/", $aba)) {
$n = 0;
for($i = 0; $i < 9; $i += 3) {
$n += (substr($aba, $i, 1) * 3) + (substr($aba, $i + 1, 1) * 7) + (substr($aba, $i + 2, 1));
}
if ($n != 0 and $n % 10 == 0) {
return true;
}
}
return false;
}
private function validate_cc($Num, $Name = "n/a", $Exp = "")
{
// Check the expiration date first
if (strlen($Exp))
{
$Month = substr($Exp, 0, 2);
$Year = substr($Exp, -2);
$WorkDate = "$Month/01/$Year";
$WorkDate = strtotime($WorkDate);
$LastDay = date("t", $WorkDate);
$Expires = strtotime("$Month/$LastDay/$Year 11:59:59");
if ($Expires < time()) return 0;
}
// Innocent until proven guilty
$GoodCard = true;
// Get rid of any non-digits
$Num = preg_replace("/[^0-9]~/", "", $Num);
// Perform card-specific checks, if applicable
switch ($Name)
{
case "mcd" :
$GoodCard = preg_match("/^5[1-5].{14}$/", $Num);
break;
case "vis" :
$GoodCard = preg_match("/^4.{15}$|^4.{12}$/", $Num);
break;
case "amx" :
$GoodCard = preg_match("/^3[47].{13}$/", $Num);
break;
case "dsc" :
$GoodCard = preg_match("/^6011.{12}$/", $Num);
break;
case "dnc" :
$GoodCard = preg_match("/^30[0-5].{11}$|^3[68].{12}$/", $Num);
break;
case "jcb" :
$GoodCard = preg_match("/^3.{15}$|^2131|1800.{11}$/", $Num);
break;
case "dlt" :
$GoodCard = preg_match("/^4.{15}$/", $Num);
break;
case "swi" :
$GoodCard = preg_match("/^[456].{15}$|^[456].{17,18}$/", $Num);
break;
case "enr" :
$GoodCard = preg_match("/^2014.{11}$|^2149.{11}$/", $Num);
break;
}
// The Luhn formula works right to left, so reverse the number.
$Num = strrev($Num);
$Total = 0;
for ($x=0; $x < strlen($Num); $x++)
{
$digit = substr($Num, $x, 1);
// If it's an odd digit, double it
if ($x/2 != floor($x/2)) {
$digit *= 2;
// If the result is two digits, add them
if (strlen($digit) == 2)
$digit = substr($digit, 0, 1) + substr($digit, 1, 1);
}
// Add the current digit, doubled and added if applicable, to the Total
$Total += $digit;
}
// If it passed (or bypassed) the card-specific check and the Total is
// evenly divisible by 10, it's cool!
return ($GoodCard && $Total % 10 == 0);
}
}