├── .gitignore
├── .DS_Store
├── img
    ├── logo.png
    └── loader.gif
├── templates
    ├── completed.php
    └── payment.php
├── README.md
├── css
    └── payment.css
├── LICENSE
├── Lnd_wrapper.php
└── woocommerce-gateway-lightning.php


/.gitignore:
--------------------------------------------------------------------------------
1 | tls/.DS_Store
2 | 


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/.DS_Store:
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https://raw.githubusercontent.com/joaodealmeida/woocommerce-gateway-lightning/HEAD/.DS_Store


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/img/logo.png:
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https://raw.githubusercontent.com/joaodealmeida/woocommerce-gateway-lightning/HEAD/img/logo.png


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/img/loader.gif:
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https://raw.githubusercontent.com/joaodealmeida/woocommerce-gateway-lightning/HEAD/img/loader.gif


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/templates/completed.php:
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 1 | <h2>Payment completed successfully</h2>
 2 | <?php
 3 |   $payHash = get_post_meta( $order->get_id(), 'LN_HASH', true );
 4 |   $invoiceRep = $this->lndCon->getInvoiceInfoFromHash( bin2hex(base64_decode($payHash)) ); 
 5 | ?>
 6 | <ul class="order_details">
 7 |   <li>
 8 |     Payment completed at: <strong><?php echo date('r', $invoiceRep->settle_date) ?></strong>
 9 |   </li>
10 |   <li>
11 |     Lightning rhash: <strong><?php echo $invoiceRep->r_hash ?></strong>
12 |   </li>
13 |   <li>
14 |     Invoice amount: <strong><?php echo self::format_msat($invoiceRep->value, $this->lndCon->getCoin()) ?></strong>
15 |   </li>
16 | </ul>
17 | 


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/README.md:
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 1 | # WooCommerce Plugin for Bitcoin Lightning
 2 | 
 3 | Plugin to accept Bitcoin Lightning payments at [WooCommerce](https://woocommerce.com) stores,
 4 | using [LND](https://github.com/lightningnetwork/lnd).
 5 | 
 6 | ## Installation
 7 | 
 8 | Requires PHP >= 5.6 and the `php-curl` and `php-gd` extensions.
 9 | 
10 | 1. Setup a [LND] node (https://github.com/lightningnetwork/lnd).
11 | 
12 | 2. Get the Node server IP and macaroon key
13 | 
14 | 3. Install and enable the plugin on your WordPress installation.
15 | 
16 | 4. Under the WordPress administration panel, go to `WooCommerce -> Settings -> Checkout -> Lightning` and set LND endpoint and macaroon key.
17 | 
18 | 5. Add LND tls.cert to plugin-folder/tls or input the exact path on plugin settings.
19 | 
20 | 
21 | The payment option should now be available in your checkout page.
22 | 
23 | ## License
24 | 
25 | MIT
26 | 


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/css/payment.css:
--------------------------------------------------------------------------------
 1 | /* Hide WooCommerce default title payment details */
 2 | header.entry-header, .order_details {
 3 |   display: none;
 4 | }
 5 | 
 6 | .woocommerce-breadcrumb {
 7 |   margin-bottom: 0;
 8 | }
 9 | 
10 | .ln-pay { margin-bottom: 2em; }
11 | 
12 | .ln-pay h2 { margin-bottom: 0; }
13 | 
14 | .ln-pay h4 {
15 |   color: #999;
16 |   clear: none;
17 | }
18 | 
19 | .ln-pay .qr {
20 |   display: block;
21 |   float: right;
22 |   width: 200px;
23 |   margin-top: -10px;
24 | }
25 | 
26 | .ln-pay .payreq {
27 |   word-wrap: break-word;
28 |   margin-right: 220px;
29 | }
30 | 
31 | .ln-pay code {
32 |   display: block;
33 |   margin: 1em 0;
34 |   padding: 0.75em;
35 | }
36 | 
37 | .ln-pay p {
38 |   margin: 1em 0;
39 | }
40 | 
41 | .ln-pay .loader {
42 |   display: inline;
43 | }
44 | 
45 | @media (max-width: 550px) {
46 |   .ln-pay { text-align: center; }
47 |   .ln-pay .qr { float: none; margin: 0 auto; }
48 |   .ln-pay .payreq { margin-right: 0; }
49 | }
50 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
 1 | MIT License
 2 | 
 3 | Copyright (c) 2018 João Almeida
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 


--------------------------------------------------------------------------------
/templates/payment.php:
--------------------------------------------------------------------------------
 1 | <link rel="stylesheet" href="<?php echo plugins_url('css/payment.css', dirname(__FILE__))?>" type="text/css">
 2 | <noscript><style>.yesscript{display:none}</style></noscript>
 3 | <?php 
 4 | $expiry_datestr = $callResponse->creation_date + $callResponse->expiry;
 5 | $payReq = $callResponse->payment_request;
 6 | ?>
 7 | 
 8 | <div class="ln-pay">
 9 |   <h1>Pay with Lightning</h1>
10 |   <h3>
11 |     <?php if ($order->get_currency() !== 'BTC'): ?> <?php echo $order->get_total() ?> <?php echo $order->get_currency() ?> = <?php endif ?>
12 |     <?php echo self::format_msat($callResponse->value, $this->lndCon->getCoin()) ?>
13 |   </h3>
14 |   <img class="qr" src="<?php echo $qr_uri ?>">
15 |   <code class="payreq"><?php echo $payReq ?></code>
16 |   <p>
17 |     <noscript>Your browser has JavaScript turned off. Please refresh the page manually after making the payment.</noscript>
18 |     <span class="yesscript"><img src="<?php echo plugins_url( '../img/loader.gif', __FILE__ ) ?>" class="loader" alt="loading"> Awaiting payment.</span>
19 |     The invoice expires <span id="expiry-timer" title="<?php echo $expiry_datestr ?>"><?php echo $expiry_datestr ?></span>.
20 |   </p>
21 |   <a class="checkout-button button alt btn btn-default" href="lightning:<?php echo get_post_meta( $order->get_id(), 'LN_INVOICE', true ); ?>">Pay with Lightning</a>
22 | </div>
23 | 
24 | <script>
25 | (function($, ajax_url, invoice_id, redir_url, expires_at){
26 |   $(function poll() {
27 |     $.post(ajax_url, { action: 'ln_wait_invoice', invoice_id: invoice_id })
28 |       .success((code, state, res) => {
29 |         console.log(res.responseJSON)
30 |         if (res.responseJSON === true) return document.location = redir_url
31 | 
32 |         setTimeout(poll, 10000);
33 |         throw new Error('succesful response, but not the expected one')
34 |       })
35 |       .fail(res => {
36 |         // 402 Payment Required: timeout reached without payment, invoice is still payable
37 |         if (res.status === 402) return poll()
38 |         // 410 Gone: invoice expired and can not longer be paid
39 |         if (res.status === 410) return location.reload()
40 |         
41 |         throw new Error('unexpected status code '+res.status)
42 |       })
43 |   })
44 | 
45 |   ;(function updateExpiry() {
46 |     var left = expires_at - (+new Date()/1000|0)
47 |     if (left <= 0) return location.reload()
48 |     $('#expiry-timer').text('in '+formatDur(left))
49 |     setTimeout(updateExpiry, 1000)
50 |   })()
51 | 
52 |   function formatDur(x) {
53 |     var h=x/3600|0, m=x%3600/60|0, s=x%60
54 |     return ''+(h>0?h+':':'')+(m<10&&h>0?'0':'')+m+':'+(s<10?'0':'')+s
55 |   }
56 | })(jQuery, <?php echo json_encode(admin_url( 'admin-ajax.php' )) ?>, <?php echo json_encode($order->get_id()) ?>,
57 |            <?php echo json_encode($order->get_checkout_order_received_url()) ?>, <?php echo $expiry_datestr ?>)
58 | 
59 | </script>
60 | 
61 | 


--------------------------------------------------------------------------------
/Lnd_wrapper.php:
--------------------------------------------------------------------------------
  1 | <?php
  2 | 
  3 | class LndWrapper
  4 | {
  5 | 
  6 |     private $macaroonHex;
  7 |     private $endpoint;
  8 |     private $coin = 'BTC';
  9 |     private $tlsPath;
 10 | 
 11 | 
 12 |     /**
 13 |      * Call this method to get singleton
 14 |      */
 15 |     public static function instance()
 16 |     {
 17 |       static $instance = false;
 18 |       if( $instance === false )
 19 |       {
 20 |         // Late static binding (PHP 5.3+)
 21 |         $instance = new static();
 22 |       }
 23 | 
 24 |       return $instance;
 25 |     }
 26 | 
 27 |     /**
 28 |      * Make constructor private, so nobody can call "new Class".
 29 |      */
 30 |     private function __construct() {
 31 |     }
 32 | 
 33 |     /**
 34 |      * Make clone magic method private, so nobody can clone instance.
 35 |      */
 36 |     private function __clone() {}
 37 | 
 38 |     /**
 39 |      * Make sleep magic method private, so nobody can serialize instance.
 40 |      */
 41 |     private function __sleep() {}
 42 | 
 43 |     /**
 44 |      * Make wakeup magic method private, so nobody can unserialize instance.
 45 |      */
 46 |     private function __wakeup() {}
 47 | 
 48 |     /**
 49 |      * Custom function to make curl requests
 50 |      */
 51 |     private function curlWrap( $url, $json, $action, $headers ) {
 52 |         $ch			=			curl_init();
 53 | 
 54 |         curl_setopt($ch, CURLOPT_URL, $url);
 55 | 
 56 |         switch($action){
 57 |             case "POST":
 58 |                 curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
 59 |                 curl_setopt($ch, CURLOPT_POSTFIELDS, $json);
 60 |                 break;
 61 |             case "GET":
 62 |                 curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "GET");
 63 |                 break;
 64 |             case "PUT":
 65 |                 curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "PUT");
 66 |                 curl_setopt($ch, CURLOPT_POSTFIELDS, $json);
 67 |                 break;
 68 |             case "DELETE":
 69 |                 curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "DELETE");
 70 |                 break;
 71 |             default:
 72 |                 break;
 73 |             }
 74 | 
 75 |             curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 76 |             //This is set to 0 for development mode. Set 1 when production (self-signed certificate error)
 77 |             curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1);
 78 |             curl_setopt($ch, CURLOPT_CAINFO, $this->tlsPath);
 79 |             curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
 80 | 
 81 | 
 82 |             $output = curl_exec($ch);
 83 | 
 84 |             curl_close($ch);
 85 |             return $output;
 86 |     }
 87 | 
 88 |     /**
 89 |      * Set endpoint credentials
 90 |      */
 91 |     public function setCredentials ( $endpoint , $macaroonHex , $tlsPath){
 92 |         $this->endpoint = $endpoint;
 93 |         $this->macaroonHex = $macaroonHex;
 94 |         $this->tlsPath = $tlsPath;
 95 |     }
 96 | 
 97 |     public function setCoin ( $coin ){
 98 |         $this->coin = $coin;
 99 |     }
100 | 
101 |     public function getCoin () {
102 |         return $this->coin;
103 |     }
104 | 
105 |     public function generateQr( $paymentRequest ){
106 |         $size = "150x150";
107 |         $encoding = "UTF-8";
108 |         return 'https://chart.googleapis.com/chart?cht=qr' . '&chs=' . $size . '&chl=' . $paymentRequest . '&choe=' . $encoding;
109 |     }
110 | 
111 |     /**
112 |      * Generate Payment Request
113 |      */
114 |     public function createInvoice ( $invoice ) {
115 |         $header = array('Grpc-Metadata-macaroon: ' . $this->macaroonHex , 'Content-type: application/json');
116 |         $createInvoiceResponse = $this->curlWrap( $this->endpoint . '/v1/invoices', json_encode( $invoice ), 'POST', $header );
117 |         $createInvoiceResponse = json_decode($createInvoiceResponse);
118 |         return $createInvoiceResponse;
119 |     }
120 | 
121 |     public function getInvoiceInfoFromPayReq ($paymentRequest) {
122 |         $header = array('Grpc-Metadata-macaroon: ' . $this->macaroonHex , 'Content-type: application/json');
123 |         $invoiceInfoResponse = $this->curlWrap( $this->endpoint . '/v1/payreq/' . $paymentRequest,'', "GET", $header );
124 |         $invoiceInfoResponse = json_decode( $invoiceInfoResponse );
125 |         return $invoiceInfoResponse;
126 |     }
127 | 
128 |     public function getInvoiceInfoFromHash ( $paymentHash ) {
129 |         $header = array('Grpc-Metadata-macaroon: ' . $this->macaroonHex , 'Content-type: application/json');
130 |         $invoiceInfoResponse = $this->curlWrap( $this->endpoint . '/v1/invoice/' . $paymentHash,'', "GET", $header );
131 |         $invoiceInfoResponse = json_decode( $invoiceInfoResponse );
132 |         return $invoiceInfoResponse;
133 |     }
134 | 
135 |     public function getLivePrice() {
136 | 
137 |         $ticker = "BTCUSD";
138 |         if($this->coin === 'LTC'){
139 |             $ticker = 'LTCUSD';
140 |         }
141 |         $tickerUrl = "https://apiv2.bitcoinaverage.com/indices/global/ticker/" . $ticker;
142 |         $aHTTP = array(
143 |           'http' =>
144 |             array(
145 |             'method'  => 'GET',
146 |               )
147 |         );
148 |         $content = file_get_contents($tickerUrl, false);
149 | 
150 |         return json_decode($content, true)['ask'];
151 |     }
152 | 
153 | }
154 | 


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/woocommerce-gateway-lightning.php:
--------------------------------------------------------------------------------
  1 | <?php
  2 | /*
  3 |     Plugin Name: WooCommerce Lightning Gateway
  4 |     Plugin URI:  https://joaoalmeida.me
  5 |     Description: Enable instant and fee-reduced payments in BTC and LTC through Lightning Network.
  6 |     Author:      João Almeida
  7 |     Author URI:  https://joaoalmeida.me
  8 | 
  9 |     Version:           0.1.0
 10 |     GitHub Plugin URI: https://github.com/joaodealmeida/woocommerce-gateway-zap
 11 | */
 12 | 
 13 | if ( ! defined( 'ABSPATH' ) ) {
 14 |   exit;
 15 | }
 16 | 
 17 | register_activation_hook( __FILE__, function(){
 18 |   if (!extension_loaded('gd') || !extension_loaded('curl')) {
 19 |     die('The php-curl and php-gd extensions are required. Please contact your hosting provider for additional help.');
 20 |   }
 21 | });
 22 | 
 23 | require_once 'Lnd_wrapper.php';
 24 | 
 25 | if (!function_exists('init_wc_lightning')) {
 26 | 
 27 |   function init_wc_lightning() {
 28 |     if (!class_exists('WC_Payment_Gateway')) return;
 29 | 
 30 |     class WC_Gateway_Lightning extends WC_Payment_Gateway {
 31 | 
 32 |       public function __construct() {
 33 |         $this->id                 = 'lightning';
 34 |         $this->order_button_text  = __('Proceed to Lightning Payment', 'woocommerce');
 35 |         $this->method_title       = __('Lightning', 'woocommerce');
 36 |         $this->method_description = __('Lightning Network Payment');
 37 |         $this->icon               = plugin_dir_url(__FILE__).'img/logo.png';
 38 |         $this->supports           = array();       
 39 | 
 40 |         // Load the settings.
 41 |         $this->init_form_fields();
 42 |         $this->init_settings();
 43 | 
 44 |         // Define user set variables.
 45 |         $this->title       = $this->get_option('title');
 46 |         $this->description = $this->get_option('description');
 47 |         $this->endpoint = $this->get_option( 'endpoint' );
 48 |         $this->macaroon = $this->get_option( 'macaroon' );
 49 |         $this->lndCon = LndWrapper::instance();
 50 |         $this->lndCon->setCredentials ( $this->get_option( 'endpoint' ), $this->get_option( 'macaroon' ), $this->get_option( 'ssl' ));        
 51 |         $this->lndCon->setCoin( $this->get_option( 'coin' ) );
 52 | 
 53 |         add_action('woocommerce_payment_gateways', array($this, 'register_gateway'));
 54 |         add_action('woocommerce_update_options_payment_gateways_lightning', array($this, 'process_admin_options'));
 55 |         add_action('woocommerce_receipt_lightning', array($this, 'show_payment_info'));
 56 |         add_action('woocommerce_thankyou_lightning', array($this, 'show_payment_info'));
 57 |         add_action('wp_ajax_ln_wait_invoice', array($this, 'wait_invoice'));
 58 |         add_action('wp_ajax_nopriv_ln_wait_invoice', array($this, 'wait_invoice'));
 59 |       }
 60 | 
 61 |       /**
 62 |        * Initialise Gateway Settings Form Fields.
 63 |        */
 64 |       public function init_form_fields() {
 65 |         $tlsPath = plugin_dir_path(__FILE__).'tls/tls.cert';
 66 |         $this->form_fields = array(
 67 |           'enabled' => array(
 68 |             'title'       => __( 'Enable/Disable', 'woocommerce-gateway-lightning' ),
 69 |             'label'       => __( 'Enable Lightning payments', 'woocommerce-gateway-lightning' ),
 70 |             'type'        => 'checkbox',
 71 |             'description' => '',
 72 |             'default'     => 'no',
 73 |           ),
 74 |           'title' => array(
 75 |             'title'       => __('Title', 'lightning'),
 76 |             'type'        => 'text',
 77 |             'description' => __('Controls the name of this payment method as displayed to the customer during checkout.', 'lightning'),
 78 |             'default'     => __('Bitcoin Lightning', 'lightning'),
 79 |             'desc_tip'    => true,
 80 |            ),
 81 |            'coin' => array(
 82 |              'title'       => __('Coin', 'lightning'),
 83 |              'type'        => 'select',
 84 |              'description' => __('Select the coin network your LND is connected to.', 'lightning'),
 85 |              'default'     => __('BTC', 'lightning'),
 86 |              'options'     => array(
 87 |                             'BTC'   => __('BTC','lightning'),
 88 |                             'LTC'  => __('LTC','lightning')
 89 |              ),
 90 |              'desc_tip'    => true, 
 91 |             ),
 92 |           'endpoint' => array(
 93 |             'title'       => __( 'Endpoint', 'lightning' ),
 94 |             'type'        => 'textarea',
 95 |             'description' => __( 'Place here the API endpoint', 'lightning' ),
 96 |             'default'     => 'https://localhost:8080',
 97 |             'desc_tip'    => true,
 98 |           ),
 99 |           'macaroon' => array(
100 |             'title'       => __('Macaroon Hex', 'lightning'),
101 |             'type'        => 'textarea',
102 |             'description' => __('Input Macaroon Hex to get access to LND API', 'lightning'),
103 |             'default'     => '',
104 |             'desc_tip'    => true,
105 |           ),
106 |           'description' => array(
107 |             'title'       => __('Customer Message', 'lightning'),
108 |             'type'        => 'textarea',
109 |             'description' => __('Message to explain how the customer will be paying for the purchase.', 'lightning'),
110 |             'default'     => 'You will pay using the Lightning Network.',
111 |             'desc_tip'    => true,
112 |           ),
113 |           'ssl' => array(
114 |             'title'       => __('SSL Certificate Path', 'lightning'),
115 |             'type'        => 'textarea',
116 |             'description' => __('Put your LND SSL certificate path.', 'lightning'),
117 |             'default'     => $tlsPath,
118 |             'desc_tip'    => true,
119 |           )
120 |           
121 |         );
122 |       }
123 | 
124 |       /**
125 |        * Process the payment and return the result.
126 |        * @param  int $order_id
127 |        * @return array
128 |        */
129 |       public function process_payment( $order_id ) {
130 |         $order = wc_get_order($order_id);
131 |         $usedCurrency = get_woocommerce_currency();
132 |         $livePrice = $this->lndCon->getLivePrice();
133 | 
134 |         $invoiceInfo = array();
135 |         $btcPrice = $order->get_total() * ((float)1/ $livePrice);
136 |         
137 |         $invoiceInfo['value'] = round($btcPrice * 100000000);
138 |         $invoiceInfo['memo'] = "Order key: " . $order->get_checkout_order_received_url();
139 | 
140 |         $invoiceResponse = $this->lndCon->createInvoice ( $invoiceInfo );
141 | 
142 |         if(property_exists($invoiceResponse, 'error')){
143 |           wc_add_notice( __('Error: ', 'lightning') . $invoiceResponse->error, 'error' );
144 |           return;
145 |         }
146 | 
147 |         if(!property_exists($invoiceResponse, 'payment_request')) {
148 |           wc_add_notice( __('Error: ', 'lightning') . 'Lightning Node is not reachable at this time. Please contact the store administrator.', 'error' );
149 |           return;
150 |         }
151 | 
152 |         update_post_meta( $order->get_id(), 'LN_INVOICE', $invoiceResponse->payment_request, true);
153 |         update_post_meta( $order->get_id(), 'LN_HASH', $invoiceResponse->r_hash, true);
154 |         $order->add_order_note("Awaiting payment of " . number_format((float)$btcPrice, 7, '.', '') . " " . $this->lndCon->getCoin() .  "@ 1 " . $this->lndCon->getCoin() . " ~ " . $livePrice ." USD. <br> Invoice ID: " . $invoiceResponse->payment_request);
155 | 
156 |         return array(
157 |           'result'   => 'success',
158 |           'redirect' => $order->get_checkout_payment_url(true)
159 |         );
160 |       }
161 | 
162 | 
163 |       /**
164 |        * JSON endpoint for long polling payment updates.
165 |        */
166 |       public function wait_invoice() {
167 | 
168 |         $order = wc_get_order($_POST['invoice_id']);         
169 |         
170 |         if($order->get_status() == 'processing'){
171 |           status_header(200);
172 |           wp_send_json(true);
173 |           return;
174 |         }
175 |         /**
176 |          * 
177 |          * Check if invoice is paid
178 |          */
179 | 
180 |         $payHash = get_post_meta( $_POST['invoice_id'], 'LN_HASH', true );
181 | 
182 |         $callResponse = $this->lndCon->getInvoiceInfoFromHash( bin2hex(base64_decode( $payHash ) ) );
183 |         if(!property_exists( $callResponse, 'r_hash' )) {
184 |           status_header(410);
185 |           wp_send_json(false);
186 |           return;
187 |         }
188 | 
189 |         $invoiceTime = $callResponse->creation_date + $callResponse->expiry;
190 |         if($invoiceTime < time()) {
191 | 
192 |           //Invoice expired
193 |           $livePrice = $this->lndCon->getLivePrice();
194 |           $invoiceInfo = array();
195 |           $btcPrice = $order->get_total() * ((float)1/ $livePrice);
196 |           
197 |           $invoiceInfo['value'] = round($btcPrice * 100000000);
198 |           $invoiceInfo['memo'] = "Order key: " . $order->get_checkout_order_received_url();
199 |   
200 |           $invoiceResponse = $this->lndCon->createInvoice ( $invoiceInfo );
201 |           update_post_meta( $order->get_id(), 'LN_INVOICE', $invoiceResponse->payment_request);
202 |           update_post_meta( $order->get_id(), 'LN_HASH', $invoiceResponse->r_hash);
203 |           $order->add_order_note("Awaiting payment of " . number_format((float)$btcPrice, 7, '.', '') . " " . $this->lndCon->getCoin() .  "@ 1 " . $this->lndCon->getCoin() . " ~ " . $livePrice ." USD. <br> Invoice ID: " . $invoiceResponse->payment_request);          
204 |           status_header(410);
205 |           wp_send_json(false);
206 |           return;
207 |         }
208 |         
209 |         if(!property_exists( $callResponse, 'settled' )){
210 |           status_header(402);
211 |           wp_send_json(false);
212 |           return;
213 |         }
214 |         
215 |         if ($callResponse->settled) {
216 |           $order->payment_complete();
217 |           $order->add_order_note('Lightning Payment received on ' . $invoiceRep->settle_date);
218 |           status_header(200);
219 |           wp_send_json(true);
220 |           return;
221 |         }
222 | 
223 |       }
224 | 
225 |       /**
226 |        * Hooks into the checkout page to display Lightning-related payment info.
227 |        */
228 |       public function show_payment_info($order_id) {
229 |         global $wp;
230 | 
231 |         $order = wc_get_order($order_id);
232 | 
233 |         if (!empty($wp->query_vars['order-received']) && $order->needs_payment()) {
234 |           // thankyou page requested, but order is still unpaid
235 |           wp_redirect($order->get_checkout_payment_url(true));
236 |           exit;
237 |         }
238 | 
239 |         if ($order->has_status('cancelled')) {
240 |           // invoice expired, reload page to display expiry message
241 |           wp_redirect($order->get_checkout_payment_url(true));
242 |           exit;
243 |         }
244 | 
245 |         if ($order->needs_payment()) {
246 |           //Prepare information for payment page
247 |           $qr_uri = $this->lndCon->generateQr( get_post_meta( $order_id, 'LN_INVOICE', true ) );
248 |           $payHash = get_post_meta( $order_id, 'LN_HASH', true );
249 |           $callResponse = $this->lndCon->getInvoiceInfoFromHash( bin2hex(base64_decode($payHash)) );
250 |           require __DIR__.'/templates/payment.php';
251 | 
252 |         } elseif ($order->has_status(array('processing', 'completed'))) {
253 |           require __DIR__.'/templates/completed.php';
254 |         }
255 |       }
256 | 
257 |       /**
258 |        * Register as a WooCommerce gateway.
259 |        */
260 |       public function register_gateway($methods) {
261 |         $methods[] = $this;
262 |         return $methods;
263 |       }
264 | 
265 |       protected static function format_msat($msat, $coin) {
266 |         return rtrim(rtrim(number_format($msat/100000000, 8), '0'), '.') . ' ' . $coin;
267 |       }
268 |     }
269 | 
270 |     new WC_Gateway_Lightning();
271 |   }
272 | 
273 |   add_action('plugins_loaded', 'init_wc_lightning');
274 | }
275 | 


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