Your IP : 216.73.216.93
<?php
namespace App\Libraries;
use App\Controllers\BaseController;
/*
Strip Payments Library v1.0 for codeigniter
by Jaydeep Goswami
*/
/*
1. get_credentials()
2. create_customer($customer_data)
3. construct_event($request_body, $sigHeader, $secret,$tolerance = DEFAULT_TOLERANCE)
4. create_payment_intent($c_data)
5. curl($url, $method = 'GET', $data = [])
*/
const DEFAULT_TOLERANCE = 300;
class Stripe
{
private $secret_key = "";
private $publishable_key = "";
private $webhook_secret_key = "";
private $currency_code = "";
private $url = "";
function __construct()
{
helper('url');
helper('form');
helper('function');
$settings = get_settings('payment_gateways_settings', true);
$this->secret_key = isset($settings['stripe_secret_key']) ? $settings['stripe_secret_key'] : "sk_test_51LERZeSCiHzi4IW1hODcT6ngl88bSZzN4SHqH58CFKJ7eEQKSzniJTXgVNXFQPXuKfu9pAOYVMOe6UeE2q7hY5J400qllsvrye";
$this->publishable_key = isset($settings['stripe_publishable_key']) ? $settings['stripe_publishable_key'] : "pk_test_51LERZeSCiHzi4IW10a1ecq2n2IqfiHZyvbVM6b4R7ofokfYk6HSSmv4KIjvDsFs8CVezsw50RiSizEswPhSC4SZC00M9HLWZZl";
$this->webhook_secret_key = isset($settings['stripe_webhook_secret_key']) ? $settings['stripe_webhook_secret_key'] : "whsec_fsFzJNGOI2jxtkRFHY27AMWV7Dtglzq4";
$this->currency_code = strtolower($settings['stripe_currency']);
$this->url = "https://api.stripe.com/";
}
public function get_credentials()
{
$data['secret_key'] = $this->secret_key;
$data['publishable_key'] = $this->publishable_key;
$data['webhook_key'] = $this->webhook_secret_key;
$data['currency'] = $this->currency_code;
$data['url'] = $this->url;
return $data;
}
// Set your secret key. Remember to switch to your live secret key in production.
// See your keys here: https://dashboard.stripe.com/apikeys
public function create_customer($customer_data)
{
$create_customer['name'] = $customer_data['name'];
$create_customer['address']['line1'] = $customer_data['line1'];
$create_customer['address']['postal_code'] = $customer_data['postal_code'];
$create_customer['address']['city'] = $customer_data['city'];
$url = $this->url . 'v1/customers';
$method = 'POST';
$response = $this->curl($url, $method, $create_customer);
$res = json_decode($response['body'], true);
return $res;
}
// public function construct_event($request_body, $sigHeader, $secret, $tolerance = DEFAULT_TOLERANCE)
// {
// $explode_header = explode(",", $sigHeader);
// for ($i = 0; $i < count($explode_header); $i++) {
// $data[] = explode("=", $explode_header[$i]);
// }
// if (empty($data[0][1]) || $data[0][1] == "" || empty($data[1][1]) || $data[1][1] == "") {
// $response['error'] = true;
// $response['message'] = "Unable to extract timestamp and signatures from header";
// return $response;
// }
// $timestamp = $data[0][1];
// $signs = $data[1][1];
// $signed_payload = "{$timestamp}.{$request_body}";
// $expectedSignature = hash_hmac('sha256', $signed_payload, $secret);
// if ($expectedSignature == $signs) {
// if (($tolerance > 0) && (\abs(\time() - $timestamp) > $tolerance)) {
// $response['error'] = true;
// $response['message'] = "Timestamp outside the tolerance zone";
// return $response;
// } else {
// return "Matched";
// }
// } else {
// $response['error'] = true;
// $response['message'] = "No signatures found matching the expected signature for payload";
// return $response;
// }
// }
public function construct_event($request_body, $sigHeader, $secret, $tolerance = DEFAULT_TOLERANCE)
{
$explode_header = explode(",", $sigHeader);
for ($i = 0; $i < count($explode_header); $i++) {
$data[] = explode("=", $explode_header[$i]);
}
if (empty($data[0][1]) || $data[0][1] == "" || empty($data[1][1]) || $data[1][1] == "") {
$response['error'] = true;
$response['message'] = "Unable to extract timestamp and signatures from header";
return $response;
}
$timestamp = $data[0][1];
$signs = $data[1][1];
$signed_payload = "{$timestamp}.{$request_body}";
$expectedSignature = hash_hmac('sha256', $signed_payload, $secret);
if ($expectedSignature == $signs) {
if (($tolerance > 0) && (\abs(\time() - $timestamp) > $tolerance)) {
$response['error'] = true;
$response['message'] = "Timestamp outside the tolerance zone";
return $response;
} else {
return "Matched";
}
} else {
$response['error'] = true;
$response['message'] = "No signatures found matching the expected signature for payload";
return $response;
}
}
public function create_payment_intent($c_data)
{
$c_data['currency'] = $this->currency_code;
$url = $this->url . 'v1/payment_intents';
$method = 'POST';
$response = $this->curl($url, $method, $c_data);
$res = json_decode($response['body'], true);
return $res;
}
public function refund($payment_intent, $amount)
{
$amount = ($amount*100);
$data = array(
'payment_intent' => $payment_intent,
'amount' => $amount,
);
$url = $this->url . 'v1/refunds';
$method = 'POST';
$response = $this->curl($url, $method, $data);
if ($response['http_code'] == '200') {
$res = json_decode($response['body'], true);
return $res;
} else {
return $response;
}
}
public function curl($url, $method = 'GET', $data = [])
{
$ch = curl_init();
$curl_options = array(
CURLOPT_URL => $url,
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_HEADER => 0,
CURLOPT_HTTPHEADER => array(
'Content-Type: application/x-www-form-urlencoded',
'Authorization: Basic ' . base64_encode($this->secret_key . ':')
)
);
if (strtolower($method) == 'post') {
$curl_options[CURLOPT_POST] = 1;
$curl_options[CURLOPT_POSTFIELDS] = http_build_query($data);
} else {
$curl_options[CURLOPT_CUSTOMREQUEST] = 'GET';
}
curl_setopt_array($ch, $curl_options);
$result = array(
'body' => curl_exec($ch),
'http_code' => curl_getinfo($ch, CURLINFO_HTTP_CODE),
);
return $result;
}
}