ok
Mini Shell
<?php
if (!defined('BASEPATH')) {
exit('No direct script access allowed');
}
class Payfast extends CI_Controller
{
public function __construct()
{
parent::__construct();
$this->load->model(array('gateway_ins_model'));
}
public function index()
{
// Tell PayFast that this page is reachable by triggering a header 200
header('HTTP/1.0 200 OK');
flush();
define('SANDBOX_MODE', true);
$pfHost = SANDBOX_MODE ? 'sandbox.payfast.co.za' : 'www.payfast.co.za';
// Posted variables from ITN
$pfData = $_POST;
// Strip any slashes in data
foreach ($pfData as $key => $val) {
$pfData[$key] = stripslashes($val);
}
// Convert posted variables to a string
foreach ($pfData as $key => $val) {
if ($key !== 'signature') {
$pfParamString .= $key . '=' . urlencode($val) . '&';
} else {
break;
}
}
$pfParamString = substr($pfParamString, 0, -1);
$response = "notify sent";
$para_amount = $this->gateway_ins_model->get_gateway_ins($pfData['m_payment_id'], 'payfast');
$PayFast_details = $this->gateway_ins_model->get_gateway_details('payfast');
$posted_parameter = json_decode($para_amount['parameter_details']);
$get_statusByUnique_id = $this->gateway_ins_model->get_statusByUnique_id($pfData['m_payment_id'], 'payfast');
$check1 = $this->pfValidSignature($pfData, $pfParamString, $PayFast_details->salt);
$check2 = $this->pfValidIP();
$check3 = $this->pfValidPaymentData($posted_parameter->amount, $pfData);
$check4 = $this->pfValidServerConfirmation($pfParamString, $pfHost);
if ($check1 && $check2 && $check4 && $check3) {
if ($pfData['payment_status'] == 'COMPLETE') {
$response = $pfData['payment_status'];
$paid_status = 1;
if ($para_amount['module_type'] == 'online_course') {
$online_course = $this->gateway_ins_model->get_processing_payment($para_amount['id']);
$online_course['transaction_id'] = $pfData['pf_payment_id'];
$online_course['note'] = "Online course fees processing skrill Txn ID: " . $pfData['pf_payment_id'];
unset($online_course['id']);
unset($online_course['gateway_ins_id']);
$response = "success";
$this->gateway_ins_model->deleteprocessingpaymentByid($para_amount['id']);
}
if ($para_amount['module_type'] == 'fees') {
#==========================fees-start==========================
$parameter_data = $this->gateway_ins_model->get($pfData['m_payment_id'], 'payfast');
$bulk_fees = array();
foreach ($parameter_data as $fee_key => $fee_value) {
$insert_fee_data = array(
'fee_category' => $fee_value['fee_category'],
'student_transport_fee_id' => $fee_value['student_transport_fee_id'],
'student_fees_master_id' => $fee_value['student_fees_master_id'],
'fee_groups_feetype_id' => $fee_value['fee_groups_feetype_id'],
'amount_detail' => json_decode($fee_value['amount_detail'], true),
);
$bulk_fees[] = $insert_fee_data;
//========
}
$insert_id = $this->gateway_ins_model->fee_deposit_bulk($bulk_fees);
if ($insert_id) {
$response = "success";
$this->gateway_ins_model->deleteBygateway_ins_id($para_amount['id']);
} else {
$response = "quiry_failed";
}
#==========================fees-end==========================
}
} else {
$response = $pfData['payment_status'];
$paid_status = 0;
}
} else {
$response = "checks_failed";
$paid_status = 2;
}
if ($para_amount['module_type'] == 'online_admission') {
$this->gateway_ins_model->onlineAdmissionStatus($para_amount['online_admission_id'], $paid_status);
}
$gateway_ins_response = json_encode($_POST);
$gateway_ins_add = array('gateway_ins_id' => $get_statusByUnique_id['id'], 'posted_data' => $gateway_ins_response, 'response
' => $response);
$this->gateway_ins_model->add_gateway_ins_response($gateway_ins_add);
$this->gateway_ins_model->update_gateway_ins(array('id' => $get_statusByUnique_id['id'], 'payment_status' => $response));
}
public function pfValidIP()
{
// Variable initialization
$validHosts = array(
'www.payfast.co.za',
'sandbox.payfast.co.za',
'w1w.payfast.co.za',
'w2w.payfast.co.za',
);
$validIps = [];
foreach ($validHosts as $pfHostname) {
$ips = gethostbynamel($pfHostname);
if ($ips !== false) {
$validIps = array_merge($validIps, $ips);
}
}
// Remove duplicates
$validIps = array_unique($validIps);
$referrerIp = gethostbyname(parse_url($_SERVER['HTTP_REFERER'])['host']);
if (in_array($referrerIp, $validIps, true)) {
return true;
}
return false;
}
public function pfValidSignature($pfData, $pfParamString, $pfPassphrase = null)
{
// Calculate security signature
if ($pfPassphrase === null) {
$tempParamString = $pfParamString;
} else {
$tempParamString = $pfParamString . '&passphrase=' . urlencode($pfPassphrase);
}
$signature = md5($tempParamString);
return ($pfData['signature'] === $signature);
}
public function pfValidPaymentData($cartTotal, $pfData)
{
return !(abs((float) $cartTotal - (float) $pfData['amount_gross']) > 0.01);
}
public function pfValidServerConfirmation($pfParamString, $pfHost = 'sandbox.payfast.co.za', $pfProxy = null)
{
// Use cURL (if available)
if (in_array('curl', get_loaded_extensions(), true)) {
// Variable initialization
$url = 'https://' . $pfHost . '/eng/query/validate';
// Create default cURL object
$ch = curl_init();
// Set cURL options - Use curl_setopt for greater PHP compatibility
// Base settings
curl_setopt($ch, CURLOPT_USERAGENT, null); // Set user agent
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); // Return output as string rather than outputting it
curl_setopt($ch, CURLOPT_HEADER, false); // Don't include header in output
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
// Standard settings
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $pfParamString);
if (!empty($pfProxy)) {
curl_setopt($ch, CURLOPT_PROXY, $pfProxy);
}
// Execute cURL
$response = curl_exec($ch);
curl_close($ch);
if ($response === 'VALID') {
return true;
}
}
return false;
}
}
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