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<?php
defined('BASEPATH') or exit('No direct script access allowed');
/**
* Flutter Wave Library for CodeIgniter 3.X.X
*
* Library for Flutter Wave payment gateway. It helps to integrate Flutter Wave payment gateway's Standard Method
* in the CodeIgniter application.
*
* It requires Flutterwave configuration file and it should be placed in the config directory.
*
* @package CodeIgniter
* @category Libraries
* @author Jaydeep Goswami
* @link https://infinitietech.com
* @GITHUB link https://github.com/jaydeepgiri/Flutterwave-Payments-CodeIgniter-3.X.X-Library
* @license https://github.com/jaydeepgiri/Flutterwave-Payments-CodeIgniter-3.X.X-Library/blob/master/LICENSE
* @version 1.0
*/
class Flutterwave extends CI_Controller
{
protected $response = '';
public function __construct()
{
parent::__construct();
$this->load->helper('url');
$this->load->library(['flutterwave_lib', 'session']);
}
public function index()
{
$this->load->view('flutterwave/payment_form');
}
public function create_transaction()
{
$data = $this->input->post();
$data = array(
'amount' => $data['amount'],
'customer_email' => $data['customer_email'],
'redirect_url' => base_url("flutterwave/payment_status/"),
'payment_plan' => $data['payment_plan']
);
$this->response = $this->flutterwave_lib->create_payment($data);
print_r($this->response);
if (!empty($this->response) || $this->response != '') {
$this->response = json_decode($this->response, 1);
if (isset($this->response['status']) && $this->response['status'] == 'success') {
redirect($this->response['data']['link']);
} else {
$this->session->set_flashdata('message_type', 'danger');
$this->session->set_flashdata('message', 'API returned error >> ' . $this->response['message']);
redirect(base_url('flutterwave/'));
}
}
}
public function payment_status()
{
$params = $this->input->get();
if (empty($params)) {
$data['status'] = 'error';
$data['message'] = "No parameters found.";
$this->load->view('payment_status', $data);
} elseif (isset($params['txref']) && !empty($params['txref'])) {
$response = $this->flutterwave_lib->verify_transaction($params['txref']);
if (!empty($response)) {
$response = json_decode($response, 1);
if ($response['status'] == 'success' && isset($response['data']['chargecode']) && ($response['data']['chargecode'] == '00' || $response['data']['chargecode'] == '0')) {
$data['payment_plan'] = $response['data']['paymentplan'];
$data['customer_email'] = $response['data']['custemail'];
$data['txn_id'] = $response['data']['txref'];
$data['amount'] = $response['data']['amount'];
$data['currency_code'] = $response['data']['currency'];
$data['status'] = $response['data']['status'];
$data['message'] = $response['message'];
$data['full_data'] = $response;
/*
Perform Database Operations here
Add your custom code here for any other operation like
selling good / inserting / update transaction record in database / anything else
Or
to make payment system more secure you can make use of Webhook for one extra layer of security.
*/
$this->load->view('flutterwave/payment_status', $data);
} elseif ((isset($params['cancelled']) && $params['cancelled'] == true)) {
$data['status'] = 'cancelled';
$data['message'] = 'Payment Cancelled by you or some other reasons. Try again!';
$data['full_data'] = "No data found";
$this->load->view('flutterwave/payment_status', $data);
} elseif ($response['status'] == 'error') {
$data['status'] = 'error';
$data['message'] = $response['message'];
$data['full_data'] = $response;
$this->load->view('flutterwave/payment_status', $data);
}
} else {
$data['status'] = 'error';
$data['message'] = "No data returned from ";
$this->load->view('flutterwave/payment_status', $data);
}
}
}/* end of payment_status() */
/*
Flutter wave webhook
-------------------------------------------------------------
You can give this URL in flutter wave dashboard as webhook URL
Ex: yourdomain.com/flutterwave/webhook
*/
public function webhook()
{
$this->config->load('flutterwave');
$local_secret_hash = $this->config->item('secret_hash');
$body = @file_get_contents("php://input");
$response = json_decode($body, 1);
/*
to store the flutter wave response and server response into the log file,
which can be found under 'application/logs/' folder
Make a note many times codeIgniter cannot directly read the values of '$_SERVER' variable therefore if such problem arises
you can add the following line in your root .htaccess file
SetEnvIf Authorization "(.*)" HTTP_AUTHORIZATION=$1
*/
log_message('debug', 'Flutter Wave Webhook - Normal Response - JSON DATA --> ' . var_export($response, true));
log_message('debug', 'Server Variable --> ' . var_export($_SERVER, true));
/* Reading the signature sent by flutter wave webhook */
$signature = (isset($_SERVER['HTTP_VERIF_HASH'])) ? $_SERVER['HTTP_VERIF_HASH'] : '';
/* comparing our local signature with received signature */
if (empty($signature) || $signature != $local_secret_hash) {
log_message('error', 'Flutter Wave Webhook - Invalid Signature - JSON DATA --> ' . var_export($response, true));
log_message('error', 'Server Variable --> ' . var_export($_SERVER, true));
exit();
}
if (strtolower($response['status']) == 'successful') {
// TIP: you may still verify the transaction
// before giving value.
$response = $this->flutterwave->verify_transaction($response['txRef']);
$response = json_decode($response, 1);
if (
!empty($response) && isset($response['data']['status']) && strtolower($response['data']['status']) == 'successful'
&& isset($response['data']['chargecode']) && ($response['data']['chargecode'] == '00' || $response['data']['chargecode'] == '0')
) {
$payer_email = $response['data']['custemail'];
$paymentplan = $response['data']['paymentplan'];
/*
Perform Database Operations here
Add your custom code here for any other operation like
selling good / inserting / update transaction record in database / anything else
*/
} else {
/* Transaction failed */
log_message('error', 'Flutter Wave Webhook - Inner Verification Failed --> ' . var_export($response, true));
log_message('error', 'Server Variable --> ' . var_export($_SERVER, true));
}
} else {
/* Transaction failed */
log_message('error', 'Flutter Wave Webhook - Outter Verification Failed --> ' . var_export($response, true));
log_message('error', 'Server Variable --> ' . var_export($_SERVER, true));
}
}
}