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monerowp/monero/include/monero_payments.php
cryptochangements34 f75790d908 Gives option to provide a discount for using XMR 
Allows merchant to choose to provide a discount (in terms of percentage) for customers that choose to pay securely with Monero
2017-08-11 11:06:06 -05:00

384 lines
17 KiB
PHP
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<?php
/* Main Gateway of Monero using a daemon online */
class Monero_Gateway extends WC_Payment_Gateway
{
private $reloadTime = 30000;
private $discount;
private $monero_daemon;
function __construct()
{
$this->id = "monero_gateway";
$this->method_title = __("Monero GateWay", 'monero_gateway');
$this->method_description = __("Monero Payment Gateway Plug-in for WooCommerce. You can find more information about this payment gateway in our website. WARN: You'll need a daemon online for your address.", 'monero_gateway');
$this->title = __("Monero Gateway", 'monero_gateway');
$this->version = "0.2";
//
$this->icon = apply_filters('woocommerce_offline_icon', '');
$this->has_fields = false;
$this->log = new WC_Logger();
$this->init_form_fields();
$this->host = $this->get_option('daemon_host');
$this->port = $this->get_option('daemon_port');
$this->address = $this->get_option('monero_address');
$this->username = $this->get_option('username');
$this->password = $this->get_option('password');
$this->discount = $this->get_option('discount');
// After init_settings() is called, you can get the settings and load them into variables, e.g:
// $this->title = $this->get_option('title' );
$this->init_settings();
// Turn these settings into variables we can use
foreach ($this->settings as $setting_key => $value) {
$this->$setting_key = $value;
}
add_action('admin_notices', array($this,'do_ssl_check'));
add_action('admin_notices', array($this,'validate_fields'));
add_action('woocommerce_thankyou_' . $this->id, array($this,'instruction'));
if (is_admin()) {
/* Save Settings */
add_action('woocommerce_update_options_payment_gateways_' . $this->id, array($this,'process_admin_options'
));
}
$this->monero_daemon = new Monero_Library($this->host . ':' . $this->port . '/json_rpc', $this->username, $this->password);
}
public function admin_options()
{
$this->log->add('Monero_gateway', '[SUCCESS] Monero Settings OK');
echo "<noscript><p><img src='http://monerointegrations.com/stats/piwik.php?idsite=2&rec=1' style='border:0;' alt='' /></p></noscript>";
echo "<h1>Monero Payment Gateway</h1>";
echo "<p>Welcome to Monero Extension for WooCommerce. Getting started: Make a connection with daemon <a href='https://reddit.com/u/serhack'>Contact Me</a>";
echo "<table class='form-table'>";
$this->generate_settings_html();
echo "</table>";
echo "<h4>Learn more about using a password with the monero wallet-rpc <a href=\"https://github.com/cryptochangements34/monerowp/blob/master/README.md\">here</a></h4>";
}
public function init_form_fields()
{
$this->form_fields = array(
'enabled' => array(
'title' => __('Enable / Disable', 'monero_gateway'),
'label' => __('Enable this payment gateway', 'monero_gateway'),
'type' => 'checkbox',
'default' => 'no'
),
'title' => array(
'title' => __('Title', 'monero_gateway'),
'type' => 'text',
'desc_tip' => __('Payment title the customer will see during the checkout process.', 'monero_gateway'),
'default' => __('Monero XMR Payment', 'monero_gateway')
),
'description' => array(
'title' => __('Description', 'monero_gateway'),
'type' => 'textarea',
'desc_tip' => __('Payment description the customer will see during the checkout process.', 'monero_gateway'),
'default' => __('Pay securely using XMR.', 'monero_gateway')
),
'monero_address' => array(
'title' => __('Monero Address', 'monero_gateway'),
'label' => __('Useful for people that have not a daemon online'),
'type' => 'text',
'desc_tip' => __('Monero Wallet Address', 'monero_gateway')
),
'daemon_host' => array(
'title' => __('Daemon Host/ IP', 'monero_gateway'),
'type' => 'text',
'desc_tip' => __('This is the Daemon Host/IP to authorize the payment with port', 'monero_gateway'),
'default' => 'localhost',
),
'daemon_port' => array(
'title' => __('Daemon PORT', 'monero_gateway'),
'type' => 'text',
'desc_tip' => __('This is the Daemon Host/IP to authorize the payment with port', 'monero_gateway'),
'default' => '18080',
),
'username' => array(
'title' => __('Daemon username', 'monero_gateway'),
'desc_tip' => __('This is the username that you used with your monero wallet-rpc', 'monero_gateway'),
'type' => __('text'),
'default' => __('username','monero_gateway'),
),
'password' => array(
'title' => __('Daemon password', 'monero_gateway'),
'desc_tip' => __('This is the password that you used with your monero wallet-rpc', 'monero_gateway'),
'description' => __('you can leave these fields empty if you did not set', 'monero_gateway'),
'type' => __('text'),
'default' => ''
),
'discount' => array(
'title' => __('% discount for using XMR', 'monero_gateway'),
'desc_tip' => __('Provide a descount to your customers for paying privatly with XMR!', 'monero_gateway'),
'description' => __('Leave this empty if you do not wish to provide a discount for using XMR', 'monero_gateway'),
'type' => __('text'),
),
'environment' => array(
'title' => __(' Test Mode', 'monero_gateway'),
'label' => __('Enable Test Mode', 'monero_gateway'),
'type' => 'checkbox',
'description' => __('Check this box if you are using testnet', 'monero_gateway'),
'default' => 'no'
),
);
}
public function retriveprice($currency)
{
$xmr_price = file_get_contents('https://min-api.cryptocompare.com/data/price?fsym=XMR&tsyms=BTC,USD,EUR,CAD,INR,GBP&extraParams=monero_woocommerce');
$price = json_decode($xmr_price, TRUE);
if(!isset($price)){
$this->log->add('Monero_Gateway', '[ERROR] Unable to get the price of Monero');
}
if ($currency == 'USD') {
return $price['USD'];
}
if ($currency == 'EUR') {
return $price['EUR'];
}
if ($currency == 'CAD'){
return $price['CAD'];
}
if ($currency == 'GBP'){
return $price['GBP'];
}
if ($currency == 'INR'){
return $price['INR'];
}
}
public function changeto($amount, $currency, $payment_id)
{
global $wpdb;
// This will create a table named whatever the payment id is inside the database "WordPress"
$create_table = "CREATE TABLE IF NOT EXISTS $payment_id (
rate INT
)";
$wpdb->query($create_table);
$rows_num = $wpdb->get_results("SELECT count(*) as count FROM $payment_id");
if($rows_num[0]->count > 0) // Checks if the row has already been created or not
{
$stored_rate = $wpdb->get_results("SELECT rate FROM $payment_id");
$stored_rate_transformed = $stored_rate[0]->rate / 100; //this will turn the stored rate back into a decimaled number
if(isset($this->discount))
{
$discount_decimal = $this->discount / 100;
$new_amount = $amount / $stored_rate_transformed;
$discount = $new_amount * $discount_decimal;
$final_amount = $new_amount - $discount;
$rounded_amount = round($final_amount, 12);
}
else{
$new_amount = $amount / $stored_rate_transformed;
$rounded_amount = round($new_amount, 12); //the moneo wallet can't handle decimals smaller than 0.000000000001
}
}
else // If the row has not been created then the live exchange rate will be grabbed and stored
{
$xmr_live_price = $this->retriveprice($currency);
$live_for_storing = $xmr_live_price * 100; //This will remove the decimal so that it can easily be stored as an integer
$new_amount = $amount / $xmr_live_price;
$rounded_amount = round($new_amount, 12);
$wpdb->query("INSERT INTO $payment_id (rate)
VALUES ($live_for_storing)");
}
return $rounded_amount;
}
// Submit payment and handle response
public function process_payment($order_id)
{
$order = wc_get_order($order_id);
$order->update_status('on-hold', __('Awaiting offline payment', 'monero_gateway'));
// Reduce stock levels
$order->reduce_order_stock();
// Remove cart
WC()->cart->empty_cart();
// Return thankyou redirect
return array(
'result' => 'success',
'redirect' => $this->get_return_url($order)
);
}
// Validate fields
public function validate_fields()
{
if ($this->check_monero() != TRUE) {
echo "<div class=\"error\"><p>Your Monero Address Seems not valid. Have you checked it?</p></div>";
}
}
public function check_monero()
{
$monero_address = $this->settings['monero_address'];
if (strlen($monero_address) == 95 && substr($monero_address, 1)) {
return true;
}
return false;
}
private function set_paymentid_cookie()
{
if(!isset($_COOKIE['payment_id']))
{
$payment_id = bin2hex(openssl_random_pseudo_bytes(8));
setcookie('payment_id', $payment_id, time()+2700);
}
else
$payment_id = $_COOKIE['payment_id'];
return $payment_id;
}
public function instruction($order_id)
{
$order = wc_get_order($order_id);
$amount = floatval(preg_replace('#[^\d.]#', '', $order->order_total));
$payment_id = $this->set_paymentid_cookie();
$currency = $order->currency;
$amount_xmr2 = $this->changeto($amount, $currency, $payment_id);
$address = $this->address;
$uri = "monero:$address?amount=$amount?payment_id=$payment_id";
$array_integrated_address = $this->monero_daemon->make_integrated_address($payment_id);
if(!isset($array_integrated_address)){
$this->log->add('Monero_Gateway', '[ERROR] Unable to getting integrated address ');
}
$message = $this->verify_payment($payment_id, $amount_xmr2, $order);
echo "<h4>".$message."</h4>";
echo "<link rel='stylesheet' href='https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css'>";
echo "<div class='row'>
<div class='col-sm-12 col-md-12 col-lg-12'>
<div class='panel panel-default' id='PaymentBox_de3a227fb470475'>
<div class='panel-body'>
<div class='row'>
<div class='col-sm-12 col-md-12 col-lg-12'>
<h3><span class='text text-warning'><img src='https://pbs.twimg.com/profile_images/473825289630257152/PzHu2yli.png' width='32px' height='32px'></span> Monero Payment Box</h3>
</div>
<div class='col-sm-3 col-md-3 col-lg-3'>
<img src='https://chart.googleapis.com/chart?cht=qr&chs=150x150&chl=" . $uri . "' class='img-responsive'>
</div>
<div class='col-sm-9 col-md-9 col-lg-9' style='padding:10px;'>
Send <b>" . $amount_xmr2 . " XMR</b> to<br/><input type='text' class='form-control' value='" . $array_integrated_address["integrated_address"]."'>
or scan QR Code with your mobile device<br/><br/>
<small>If you don't know how to pay with monero, click instructions button. </small>
</div>
<div class='col-sm-12 col-md-12 col-lg-12'>
<input type='hidden' id='payment_boxID' value='de3a227fb470475'>
</div>
</div>
</div>
<div class='panel-footer'>
<a class='btn btn-info btn-lg' style='width: 100%; font-size: 14px; ' data-toggle='modal' data-target='#myModal'>Instructions</a>
</div>
</div>
</div>
</div>
<div class='modal fade' id='myModal' role='dialog'>
<div class='modal-dialog'>
<!-- Modal content-->
<div class='modal-content'>
<div class='modal-header'>
<h4 class='modal-title'>How to pay with Monero</h4>
</div>
<div class='modal-body container'>
<b>Paying with Monero</b>
<p>If you don't have Monero, you can buy it at a trusted exchange. If you already have some, please follow instructions</p>
<p>Scan the QR code into your monero app or copy and paste the address above into your Monero Wallet</p>
</div>
<div class='modal-footer'>
<button type='button' class='btn btn-default' data-dismiss='modal'>Close</button>
</div>
</div>
</div>
</div>
<script type='text/javascript'>
setTimeout(function () { location.reload(true); }, $this->reloadTime);
</script>";
}
// Check if we are forcing SSL on checkout pages
// Custom function not required by the Gateway
public function do_ssl_check()
{
if ($this->enabled == "yes") {
if (get_option('woocommerce_force_ssl_checkout') == "no") {
echo "<div class=\"error\"><p>" . sprintf(__("<strong>%s</strong> is enabled and WooCommerce is not forcing the SSL certificate on your checkout page. Please ensure that you have a valid SSL certificate and that you are <a href=\"%s\">forcing the checkout pages to be secured.</a>"), $this->method_title, admin_url('admin.php?page=wc-settings&tab=checkout')) . "</p></div>";
}
}
}
public function connect_daemon(){
$host = $this->settings['daemon_host'];
$port = $this->settings['daemon_port'];
$monero_library = new Monero($host, $port);
if( $monero_library->works() == true){
echo "<div class=\"notice notice-success is-dismissible\"><p>Everything works! Congratulations and Welcome aboard Monero. <button type=\"button\" class=\"notice-dismiss\">
<span class=\"screen-reader-text\">Dismiss this notice.</span>
</button></p></div>";
}
else{
$this->log->add('Monero_gateway','[ERROR] Plugin can not reach wallet rpc.');
echo "<div class=\" notice notice-error\"><p>Error with connection of daemon, see documentation!</p></div>";
} }
public function verify_payment($payment_id, $amount, $order_id){
/*
* function for verifying payments
* Check if a payment has been made with this payment id then notify the merchant
*/
$amount_atomic_units = $amount * 1000000000000;
$get_payments_method = $this->monero_daemon->get_payments($payment_id);
if(isset($get_payments_method["payments"][0]["amount"]))
{
if($get_payments_method["payments"][0]["amount"] >= $amount_atomic_units)
{
$message = "Payment has been received and confirmed. Thanks!";
$this->log->add('Monero_gateway','[SUCCESS] Payment has been recorded. Congrats!');
$paid = true;
$order = wc_get_order($order_id);
$order->update_status('completed', __('Payment has been received', 'monero_gateway'));
$wpdb->query("DROP TABLE $payment_id"); // Drop the table from database after payment has been confirmed as it is no longer needed
$this->reloadTime = 3000000000000; // Greatly increase the reload time as it is no longer needed
}
}
else
{
$message = "We are waiting for your payment to be confirmed";
}
return $message;
}
}
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