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<?php
namespace App\Libraries;
// if (!defined('BASEPATH')) exit('No direct script access allowed');
/**
* PayPal Library for CodeIgniter 3.x
*
* Library for PayPal payment gateway. It helps to integrate PayPal payment gateway
* in the CodeIgniter application.
*
* It requires PayPal configuration file and it should be placed in the config directory.
*
* @package CodeIgniter
* @category Libraries
* @author CodexWorld
* @license http://www.codexworld.com/license/
* @link http://www.codexworld.com
* @version 2.0
*/
class Paypal
{
var $paypal_url;
var $last_error;
var $ipn_log;
var $ipn_log_file;
var $ipn_response;
var $ipn_data = array();
var $fields = array();
var $submit_btn = '';
var $button_path = '';
var $CI;
protected string $refund_url,$token_url,$paypal_client_key,$paypal_secret_key,$paypal_lib; // Explicitly declare the $refund_url property
function __construct()
{
helper('form');
helper('url');
helper('paypal');
$settings = get_settings('payment_gateways_settings', true);
if(!empty($settings['paypal_mode'])){
$sandbox = ($settings['paypal_mode']==="sandbox")?TRUE:FALSE;
}else{
$sandbox =TRUE;
}
$this->paypal_url = ($sandbox == TRUE) ? 'https://www.sandbox.paypal.com/cgi-bin/webscr' : 'https://www.paypal.com/cgi-bin/webscr';
$this->refund_url=($sandbox == TRUE) ?"https://api-m.sandbox.paypal.com/v2/payments/captures/":"https://api-m.paypal.com/v2/payments/captures/";
$this->token_url=($sandbox == TRUE) ?"https://api.sandbox.paypal.com/v1/oauth2/token":" ";
if(!empty($settings['paypal_mode'])){
$this->paypal_client_key=$settings['paypal_client_key'];
}else{
$this->paypal_client_key="";
}
if(!empty($settings['paypal_mode'])){
$this->paypal_secret_key=$settings['paypal_secret_key'];
}else{
$this->paypal_secret_key="";
}
$this->last_error = '';
$this->ipn_response = '';
$this->ipn_log_file = config('paypal_lib_ipn_log_file');
$this->ipn_log = config('paypal_lib_ipn_log');
$this->button_path = config('paypal_lib_button_path');
// populate $fields array with a few default values.
if(!empty($settings['paypal_mode'])){
$businessEmail = $settings['paypal_business_email'];
}else{
$businessEmail="";
}
$this->add_field('business', $businessEmail);
$this->add_field('rm', '2');
$this->add_field('cmd', '_xclick');
if(!empty($settings['paypal_mode'])){
$this->add_field('currency_code', $settings['paypal_currency_code']);
}else{
$this->add_field('currency_code', "USD");
}
$this->add_field('quantity', '1');
$this->button('Pay Now!');
}
function button($value)
{
// changes the default caption of the submit button
$this->submit_btn = form_submit('pp_submit', $value, 'class="btn btn-primary"');
}
function image($file)
{
$this->submit_btn = '<input type="image" name="add" src="' . base_url(rtrim($this->button_path, '/') . '/' . $file) . '" border="0" />';
}
function add_field($field, $value)
{
// adds a key=>value pair to the fields array
$this->fields[$field] = $value;
}
function paypal_auto_form()
{
// form with hidden elements which is submitted to paypal
$this->button('Click here if you\'re not automatically redirected...');
echo '<html>' . "\n";
echo '<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>Processing Payment.. Please wait.. | Telefoniim.com</title>
<link href="' . base_url('assets/img/favicon.png') . '" rel="shortcut icon" type="image/ico" />
<link href="' . base_url('assets/css/bootstrap.min.css') . '" rel="stylesheet" type="text/css" />
</head>' . "\n";
echo '<body style="text-align:center; font-size:3em;" onLoad="document.forms[\'paypal_auto_form\'].submit();">' . "\n";
echo '<p style="text-align:center;">Please wait, your order is being processed and you will be redirected to the paypal website.</p>' . "\n";
echo $this->paypal_form('paypal_auto_form');
echo '</body></html>';
}
function paypal_form($form_name = 'paypal_form')
{
$str = '';
$str .= '<form method="post" action="' . $this->paypal_url . '" name="' . $form_name . '"/>' . "\n";
// $str .= '<input type="hidden" name="paymentaction" value="authorization" />';
foreach ($this->fields as $name => $value)
$str .= form_hidden($name, $value) . "\n";
$str .= '<p><img src="' . base_url('public/frontend/retro/load.gif') . '" alt="Please wait.. Loading" title="Please wait.. Loading.." width="140px" /></p>';
$str .= '<p>' . $this->submit_btn . '</p>';
$str .= form_close() . "\n";
return $str;
}
function validate_ipn($paypalReturn)
{
$ipn_response = $this->curlPost($this->paypal_url, $paypalReturn);
log_message('error', '$ipn_response ---'.print_r($paypalReturn));
if (preg_match("/VERIFIED/i", $ipn_response)) {
// Valid IPN transaction.
return true;
} else {
// Invalid IPN transaction. Check the log for details.
$this->last_error = 'IPN Validation Failed.';
$this->log_ipn_results(false);
return false;
}
}
function log_ipn_results($success)
{
if (!$this->ipn_log) return; // is logging turned off?
// Timestamp
$text = '[' . date('m/d/Y g:i A') . '] - ';
// Success or failure being logged?
if ($success) $text .= "SUCCESS!\n";
else $text .= 'FAIL: ' . $this->last_error . "\n";
// Log the POST variables
$text .= "IPN POST Vars from Paypal:\n";
foreach ($this->ipn_data as $key => $value)
$text .= "$key=$value, ";
// Log the response from the paypal server
$text .= "\nIPN Response from Paypal Server:\n " . $this->ipn_response;
// Write to log
$fp = fopen($this->ipn_log_file, 'a');
fwrite($fp, $text . "\n\n");
fclose($fp); // close file
}
function dump()
{
// Used for debugging, this function will output all the field/value pairs
ksort($this->fields);
echo '<h2>ppal->dump() Output:</h2>' . "\n";
echo '<code style="font: 12px Monaco, \'Courier New\', Verdana, Sans-serif; background: #f9f9f9; border: 1px solid #D0D0D0; color: #002166; display: block; margin: 14px 0; padding: 12px 10px;">' . "\n";
foreach ($this->fields as $key => $value) echo '<strong>' . $key . '</strong>: ' . urldecode($value) . '<br/>';
echo "</code>\n";
}
function curlPost($paypal_url, $paypal_return_arr)
{
$req = 'cmd=_notify-validate';
foreach ($paypal_return_arr as $key => $value) {
$value = urlencode(stripslashes($value));
$req .= "&$key=$value";
}
$ipn_site_url = $paypal_url;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $ipn_site_url);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $req);
$result = curl_exec($ch);
curl_close($ch);
return $result;
}
// public function refund($txn_id, $amount)
// {
// $amount = ($amount * 100);
// $data = array(
// 'transaction' => $txn_id,
// 'amount' => $amount,
// );
// $url = $this->refund_url . '/'.$txn_id.'/refund';
// $method = 'POST';
// $response = $this->curl_request($url, $method, $data);
// print_R($url);
// die;
// if (isset($response['http_code']) && $response['http_code'] == '200') {
// $res = json_decode($response['body'], true);
// return $res;
// } else {
// return $response;
// }
// }
public function refund($txn_id, $amount,$currency=null)
{
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => $this->refund_url.$txn_id.'/refund',
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => '',
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 0,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => 'POST',
CURLOPT_USERPWD => $this->paypal_client_key . ":" . $this->paypal_secret_key,
CURLOPT_POSTFIELDS =>'{"amount": {
"value": "'.$amount.'",
"currency_code": "USD"
}}',
CURLOPT_HTTPHEADER => array(
'Content-Type: application/json',
),
));
$response = curl_exec($curl);
curl_close($curl);
if (isset($response['http_code']) && $response['http_code'] == '200') {
$res = json_decode($response['body'], true);
return $res;
} else {
return $response;
}
}
public function curl_request($end_point, $method, $data = array())
{
$this->curl = curl_init();
$token=$this->generate_token();
curl_setopt_array($this->curl, array(
CURLOPT_URL => $end_point,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_CUSTOMREQUEST => strtoupper($method),
CURLOPT_POSTFIELDS => $data, /* example array('test_key' => 'test_value_1') */
CURLOPT_HTTPHEADER => array(
"Authorization: Bearer " . $token,
"Accept: application/json",
),
));
$response = curl_exec($this->curl);
curl_close($this->curl);
return $response;
}
// https://api-m.sandbox.paypal.com
// public function generate_token(){
// $PAYPAL_CLIENT_ID=$this->paypal_client_key;
// $PAYPAL_SECRET=$this->paypal_secret_key;
// $curl = curl_init();
// curl_setopt_array($curl, array(
// CURLOPT_URL => "https://api-m.sandbox.paypal.com/v1/oauth2/token",
// CURLOPT_RETURNTRANSFER => true,
// CURLOPT_ENCODING => "",
// CURLOPT_MAXREDIRS => 10,
// CURLOPT_TIMEOUT => 30,
// CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
// CURLOPT_CUSTOMREQUEST => "POST",
// CURLOPT_USERPWD => $PAYPAL_CLIENT_ID.":".$PAYPAL_SECRET,
// CURLOPT_POSTFIELDS => "grant_type=client_credentials",
// CURLOPT_HTTPHEADER => array(
// "Accept: application/json",
// "Accept-Language: en_US"
// ),
// ));
// $result= curl_exec($curl);
// $array=json_decode($result, true);
// $token=$array['access_token'];
// return $token;
// }
public function generate_token() {
$PAYPAL_CLIENT_ID = $this->paypal_client_key;
$PAYPAL_SECRET = $this->paypal_secret_key;
$scopes = "https://uri.paypal.com/services/payments/refund ";
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => "https://api-m.sandbox.paypal.com/v1/oauth2/token",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_USERPWD => $PAYPAL_CLIENT_ID . ":" . $PAYPAL_SECRET,
CURLOPT_POSTFIELDS => "grant_type=client_credentials&scope=" . urlencode($scopes),
CURLOPT_HTTPHEADER => array(
"Accept: application/json",
"Accept-Language: en_US"
),
));
$result = curl_exec($curl);
$array = json_decode($result, true);
$token = $array['access_token'];
return $token;
}
}