Your IP : 216.73.216.145
<?php
/*
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;
#[\AllowDynamicProperties]
class Stripe
{
private $secret_key = "";
private $publishable_key = "";
private $webhook_secret_key = "";
private $currency_code = "";
private $url = "";
function __construct()
{
$this->CI = &get_instance();
$this->CI->load->helper('url');
$this->CI->load->helper('form');
$settings = get_settings('payment_method', true);
$system_settings = get_settings('system_settings', true);
$this->secret_key = (isset($settings['stripe_secret_key'])) ? $settings['stripe_secret_key'] : "";
$this->publishable_key = (isset($settings['stripe_publishable_key'])) ? $settings['stripe_publishable_key'] : "";
$this->webhook_secret_key = (isset($settings['stripe_webhook_secret_key'])) ? $settings['stripe_webhook_secret_key'] : "";
$this->currency_code = (isset($settings['stripe_currency_code'])) ? strtolower($settings['stripe_currency_code']) : "usd";
$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_code'] = $this->currency_code;
$data['url'] = $this->url;
return $data;
}
public function create_customer($customer_data)
{
if (!empty($customer_data)) {
$create_customer['name'] = $customer_data['name'];
$create_customer['email'] = $customer_data['email'];
$create_customer['address']['line1'] = $customer_data['line1'];
$create_customer['address']['postal_code'] = $customer_data['postal_code'];
$create_customer['address']['city'] = $customer_data['city'];
$create_customer['address']['state'] = $customer_data['state'];
$create_customer['address']['country'] = $customer_data['country'];
} else {
$create_customer['name'] = 'Jenny Rosen';
$create_customer['email'] = 'jennyrosen@example.com';
$create_customer['address']['line1'] = "510 Townsend St";
$create_customer['address']['postal_code'] = '98140';
$create_customer['address']['city'] = "San Francisco";
$create_customer['address']['state'] = 'CA';
$create_customer['address']['country'] = 'US';
}
$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;
}
$timestamp = trim($data[0][1]);
$signs = trim($data[1][1]);
$signed_payload = "{$timestamp}.{$request_body}";
log_message('error', 'Signed Payload: ' . $signed_payload);
log_message('error', 'Secret: ' . $secret);
$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['expectedSignature'] = $expectedSignature;
$response['signs'] = $signs;
$response['signed_payload'] = $signed_payload;
$response['message'] = "No signatures found matching the expected signature for payload";
return $response;
}
}
public function create_payment_intent($c_data, $cus_id)
{
$c_data['currency'] = $this->currency_code;
$c_data['description'] = 'Software development services';
$c_data['customer'] = $cus_id;
$url = $this->url . 'v1/payment_intents';
$method = 'POST';
$response = $this->curl($url, $method, $c_data);
$res = json_decode($response['body'], true);
return $res;
}
public function curl($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;
}
}