| 1 |
<?php |
| 2 |
/** |
| 3 |
* Plugin Name: Mailgun |
| 4 |
* Plugin URI: http://wordpress.org/extend/plugins/mailgun/ |
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* Description: Mailgun integration for WordPress |
| 6 |
* Version: 2.1.0 |
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* Requires PHP: 7.4 |
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* Requires at least: 4.4 |
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* Author: Mailgun |
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* Author URI: http://www.mailgun.com/ |
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* License: GPLv2 or later |
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* Text Domain: mailgun |
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* Domain Path: /languages/. |
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*/ |
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|
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/* |
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* mailgun-wordpress-plugin - Sending mail from Wordpress using Mailgun |
| 18 |
* Copyright (C) 2016 Mailgun, et al. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
| 22 |
* the Free Software Foundation; either version 2 of the License, or |
| 23 |
* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
| 26 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 27 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 28 |
* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along |
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* with this program; if not, write to the Free Software Foundation, Inc., |
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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*/ |
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|
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/** |
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* Entrypoint for the Mailgun plugin. Sets up the mailing "strategy" - |
| 37 |
* either API or SMTP. |
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* |
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* Registers handlers for later actions and sets up config variables with |
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* WordPress. |
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*/ |
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class Mailgun |
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{ |
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/** |
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* @var Mailgun $instance |
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*/ |
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private static $instance; |
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|
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/** |
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* @var false|mixed|null |
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*/ |
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private $options; |
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|
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/** |
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* @var string |
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*/ |
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protected $plugin_file; |
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|
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/** |
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* @var string |
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*/ |
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protected $plugin_basename; |
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|
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/** |
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* @var string |
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*/ |
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protected $assetsDir; |
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|
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/** |
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* Setup shared functionality for Admin and Front End. |
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* |
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*/ |
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public function __construct() |
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{ |
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$this->options = get_option('mailgun'); |
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$this->plugin_file = __FILE__; |
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$this->plugin_basename = plugin_basename($this->plugin_file); |
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$this->assetsDir = plugin_dir_url($this->plugin_file) . 'assets/'; |
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|
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// Either override the wp_mail function or configure PHPMailer to use the |
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// Mailgun SMTP servers |
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// When using SMTP, we also need to inject a `wp_mail` filter to make "from" settings |
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// work properly. Fixed issues with 1.5.7+ |
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if ($this->get_option('useAPI') || (defined('MAILGUN_USEAPI') && MAILGUN_USEAPI)) { |
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if (!function_exists('wp_mail')) { |
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if (!include_once(__DIR__ . '/includes/wp-mail-api.php')) { |
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$this->deactivate_and_die(__DIR__ . '/includes/wp-mail-api.php'); |
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} |
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} |
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} else { |
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// Using SMTP, include the SMTP filter |
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if (!function_exists('mg_smtp_mail_filter')) { |
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if (!include __DIR__ . '/includes/wp-mail-smtp.php') { |
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$this->deactivate_and_die(__DIR__ . '/includes/wp-mail-smtp.php'); |
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} |
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} |
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add_filter('wp_mail', 'mg_smtp_mail_filter'); |
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add_action('phpmailer_init', [&$this, 'phpmailer_init']); |
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add_action('wp_mail_failed', 'wp_mail_failed'); |
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} |
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} |
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|
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/** |
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* @return static |
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*/ |
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public static function getInstance() |
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{ |
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if (!isset(self::$instance)) { |
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self::$instance = new self(); |
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} |
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|
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return self::$instance; |
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} |
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|
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/** |
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* Get specific option from the options table. |
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* |
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* @param string $option Name of option to be used as array key for retrieving the specific value |
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* @param array|null $options Array to iterate over for specific values |
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* @param bool $default False if no options are set |
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* |
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* @return mixed |
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* |
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*/ |
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public function get_option(string $option, ?array $options = null, bool $default = false) |
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{ |
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if (is_null($options)) { |
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$options = &$this->options; |
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} |
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|
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if (isset($options[$option])) { |
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return $options[$option]; |
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} |
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|
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return $default; |
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} |
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|
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/** |
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* Hook into phpmailer to override SMTP based configurations |
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* to use the Mailgun SMTP server. |
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* |
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* @param object $phpmailer The PHPMailer object to modify by reference |
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* |
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* @return void |
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* |
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*/ |
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public function phpmailer_init(&$phpmailer) |
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{ |
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$username = (defined('MAILGUN_USERNAME') && MAILGUN_USERNAME) ? MAILGUN_USERNAME : $this->get_option('username'); |
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$domain = (defined('MAILGUN_DOMAIN') && MAILGUN_DOMAIN) ? MAILGUN_DOMAIN : $this->get_option('domain'); |
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$username = preg_replace('/@.+$/', '', $username) . "@{$domain}"; |
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$secure = (defined('MAILGUN_SECURE') && MAILGUN_SECURE) ? MAILGUN_SECURE : $this->get_option('secure'); |
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$sectype = (defined('MAILGUN_SECTYPE') && MAILGUN_SECTYPE) ? MAILGUN_SECTYPE : $this->get_option('sectype'); |
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$password = (defined('MAILGUN_PASSWORD') && MAILGUN_PASSWORD) ? MAILGUN_PASSWORD : $this->get_option('password'); |
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$region = (defined('MAILGUN_REGION') && MAILGUN_REGION) ? MAILGUN_REGION : $this->get_option('region'); |
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|
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$smtp_endpoint = mg_smtp_get_region($region); |
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$smtp_endpoint = (bool) $smtp_endpoint ? $smtp_endpoint : 'smtp.mailgun.org'; |
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|
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$phpmailer->Mailer = 'smtp'; |
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$phpmailer->Host = $smtp_endpoint; |
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|
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if ('ssl' === $sectype) { |
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// For SSL-only connections, use 465 |
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$phpmailer->Port = 465; |
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} else { |
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// Otherwise, use 587. |
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$phpmailer->Port = 587; |
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} |
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|
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$phpmailer->SMTPAuth = true; |
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$phpmailer->Username = $username; |
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$phpmailer->Password = $password; |
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|
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$phpmailer->SMTPSecure = (bool) $secure ? $sectype : ''; |
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// Without this line... wp_mail for SMTP-only will always return false. But why? :( |
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$phpmailer->Debugoutput = 'mg_smtp_debug_output'; |
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$phpmailer->SMTPDebug = 2; |
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|
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// Emit some logging for SMTP connection |
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mg_smtp_debug_output(sprintf("PHPMailer configured to send via %s:%s", $phpmailer->Host, $phpmailer->Port), |
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'DEBUG'); |
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} |
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|
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/** |
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* Deactivate this plugin and die. |
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* Deactivate the plugin when files critical to it's operation cannot be loaded |
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* |
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* @param $file Files critical to plugin functionality |
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* |
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* @return void |
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*/ |
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public function deactivate_and_die($file) |
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{ |
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load_plugin_textdomain('mailgun', false, 'mailgun/languages'); |
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$message = sprintf(__('Mailgun has been automatically deactivated because the file <strong>%s</strong> is missing. Please reinstall the plugin and reactivate.'), |
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$file); |
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if (!function_exists('deactivate_plugins')) { |
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include ABSPATH . 'wp-admin/includes/plugin.php'; |
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} |
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deactivate_plugins(__FILE__); |
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wp_die($message); |
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} |
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|
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/** |
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* Make a Mailgun api call. |
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* |
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* @param string $uri The endpoint for the Mailgun API |
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* @param array $params Array of parameters passed to the API |
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* @param string $method The form request type |
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* |
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* @return string |
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* |
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*/ |
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public function api_call($uri, $params = [], $method = 'POST'): string |
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{ |
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$options = get_option('mailgun'); |
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$getRegion = (defined('MAILGUN_REGION') && MAILGUN_REGION) ? MAILGUN_REGION : $options[ 'region' ]; |
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$apiKey = (defined('MAILGUN_APIKEY') && MAILGUN_APIKEY) ? MAILGUN_APIKEY : $options[ 'apiKey' ]; |
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$domain = (defined('MAILGUN_DOMAIN') && MAILGUN_DOMAIN) ? MAILGUN_DOMAIN : $options[ 'domain' ]; |
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|
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$region = mg_api_get_region($getRegion); |
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$this->api_endpoint = ($region) ?: 'https://api.mailgun.net/v3/'; |
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|
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$time = time(); |
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$url = $this->api_endpoint . $uri; |
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$headers = [ |
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'Authorization' => 'Basic ' . base64_encode("api:{$apiKey}"), |
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]; |
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|
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switch ($method) { |
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case 'GET': |
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$params[ 'sess' ] = ''; |
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$querystring = http_build_query($params); |
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$url = $url . '?' . $querystring; |
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$params = ''; |
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break; |
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case 'POST': |
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case 'PUT': |
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case 'DELETE': |
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$params[ 'sess' ] = ''; |
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$params[ 'time' ] = $time; |
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$params[ 'hash' ] = sha1(date('U')); |
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break; |
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} |
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|
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// make the request |
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$args = [ |
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'method' => $method, |
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'body' => $params, |
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'headers' => $headers, |
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'sslverify' => true, |
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]; |
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|
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// make the remote request |
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$result = wp_remote_request($url, $args); |
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if (!is_wp_error($result)) { |
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return $result['body']; |
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} |
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|
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if (is_callable($result)) { |
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return $result->get_error_message(); |
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} |
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|
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if (is_array($result)) { |
| 266 |
if (isset($result['response'])) { |
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return $result['response']['message'] ?? ''; |
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} |
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} |
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|
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return ''; |
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|
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} |
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|
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/** |
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* Get account associated lists. |
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* |
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* @return array |
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* |
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* @throws JsonException |
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*/ |
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public function get_lists(): array |
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{ |
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$results = []; |
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|
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$lists_json = $this->api_call('lists', [], 'GET'); |
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|
| 288 |
$lists_arr = json_decode($lists_json, true, 512, JSON_THROW_ON_ERROR); |
| 289 |
if (isset($lists_arr[ 'items' ]) && !empty($lists_arr[ 'items' ])) { |
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$results = $lists_arr['items']; |
| 291 |
} |
| 292 |
|
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return $results; |
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} |
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|
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/** |
| 297 |
* Handle add list ajax post. |
| 298 |
* |
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* @return void json |
| 300 |
* |
| 301 |
* @throws JsonException |
| 302 |
*/ |
| 303 |
public function add_list() |
| 304 |
{ |
| 305 |
$name = sanitize_text_field($_POST['name'] ?? null); |
| 306 |
$email = sanitize_text_field($_POST['email'] ?? null); |
| 307 |
$list_addresses = []; |
| 308 |
foreach ($_POST['addresses'] as $address => $val) { |
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$list_addresses[sanitize_text_field($address)] = sanitize_text_field($val); |
| 310 |
} |
| 311 |
|
| 312 |
if (!empty($list_addresses)) { |
| 313 |
$result = []; |
| 314 |
foreach ($list_addresses as $address => $val) { |
| 315 |
$result[] = $this->api_call( |
| 316 |
"lists/{$address}/members", |
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[ |
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'address' => $email, |
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'name' => $name, |
| 320 |
] |
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); |
| 322 |
} |
| 323 |
$message = 'Thank you!'; |
| 324 |
if ($result) { |
| 325 |
$message = 'Something went wrong'; |
| 326 |
$response = json_decode($result[0], true); |
| 327 |
if (is_array($response) && isset($response['message'])) { |
| 328 |
$message = $response['message']; |
| 329 |
} |
| 330 |
|
| 331 |
} |
| 332 |
echo json_encode([ |
| 333 |
'status' => 200, |
| 334 |
'message' => $message |
| 335 |
], JSON_THROW_ON_ERROR); |
| 336 |
} else { |
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echo json_encode([ |
| 338 |
'status' => 500, |
| 339 |
'message' => 'Uh oh. We weren\'t able to add you to the list' . count($list_addresses) ? 's.' : '. Please try again.' |
| 340 |
], JSON_THROW_ON_ERROR); |
| 341 |
} |
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wp_die(); |
| 343 |
} |
| 344 |
|
| 345 |
/** |
| 346 |
* Frontend List Form. |
| 347 |
* |
| 348 |
* @param string $list_address Mailgun address list id |
| 349 |
* @param array $args widget arguments |
| 350 |
* @param array $instance widget instance params |
| 351 |
* |
| 352 |
* @throws JsonException |
| 353 |
*/ |
| 354 |
public function list_form(string $list_address, array $args = [], array $instance = []) |
| 355 |
{ |
| 356 |
$widgetId = $args['widget_id'] ?? 0; |
| 357 |
$widget_class_id = "mailgun-list-widget-{$widgetId}"; |
| 358 |
$form_class_id = "list-form-{$widgetId}"; |
| 359 |
|
| 360 |
// List addresses from the plugin config |
| 361 |
$list_addresses = array_map('trim', explode(',', $list_address)); |
| 362 |
|
| 363 |
// All list info from the API; used for list info when more than one list is available to subscribe to |
| 364 |
$all_list_addresses = $this->get_lists(); |
| 365 |
?> |
| 366 |
<div class="mailgun-list-widget-front <?php echo esc_attr($widget_class_id); ?> widget"> |
| 367 |
<form class="list-form <?php echo esc_attr($form_class_id); ?>"> |
| 368 |
<div class="mailgun-list-widget-inputs"> |
| 369 |
<?php if (isset($args[ 'list_title' ])): ?> |
| 370 |
<div class="mailgun-list-title"> |
| 371 |
<h4 class="widget-title"> |
| 372 |
<span><?php echo wp_kses_data($args[ 'list_title' ]); ?></span> |
| 373 |
</h4> |
| 374 |
</div> |
| 375 |
<?php endif; ?> |
| 376 |
<?php if (isset($args[ 'list_description' ])): ?> |
| 377 |
<div class="mailgun-list-description"> |
| 378 |
<p class="widget-description"> |
| 379 |
<span><?php echo wp_kses_data($args[ 'list_description' ]); ?></span> |
| 380 |
</p> |
| 381 |
</div> |
| 382 |
<?php endif; ?> |
| 383 |
<?php if (isset($args[ 'collect_name' ]) && (int)$args['collect_name'] === 1): ?> |
| 384 |
<p class="mailgun-list-widget-name"> |
| 385 |
<strong>Name:</strong> |
| 386 |
<input type="text" name="name"/> |
| 387 |
</p> |
| 388 |
<?php endif; ?> |
| 389 |
<p class="mailgun-list-widget-email"> |
| 390 |
<strong>Email:</strong> |
| 391 |
<input type="text" name="email"/> |
| 392 |
</p> |
| 393 |
</div> |
| 394 |
|
| 395 |
<?php if (count($list_addresses) > '1'): ?> |
| 396 |
<ul class="mailgun-lists" style="list-style: none;"> |
| 397 |
<?php |
| 398 |
foreach ($all_list_addresses as $la): |
| 399 |
if (!in_array($la[ 'address' ], $list_addresses)): |
| 400 |
continue; |
| 401 |
endif; |
| 402 |
?> |
| 403 |
<li> |
| 404 |
<input type="checkbox" class="mailgun-list-name" |
| 405 |
name="addresses[<?php echo esc_attr($la[ 'address' ]); ?>]"/> <?php echo esc_attr($la[ 'name' ] ?: $la[ 'address' ]); ?> |
| 406 |
</li> |
| 407 |
<?php endforeach; ?> |
| 408 |
</ul> |
| 409 |
<?php else: ?> |
| 410 |
<input type="hidden" name="addresses[<?php echo esc_attr($list_addresses[ 0 ]); ?>]" value="on"/> |
| 411 |
<?php endif; ?> |
| 412 |
|
| 413 |
<input class="mailgun-list-submit-button" data-form-id="<?php echo esc_attr($form_class_id); ?>" type="button" |
| 414 |
value="Subscribe"/> |
| 415 |
<input type="hidden" name="mailgun-submission" value="1"/> |
| 416 |
|
| 417 |
</form> |
| 418 |
<div class="widget-list-panel result-panel" style="display:none;"> |
| 419 |
<span>Thank you for subscribing!</span> |
| 420 |
</div> |
| 421 |
</div> |
| 422 |
|
| 423 |
<script> |
| 424 |
jQuery(document).ready(function () { |
| 425 |
|
| 426 |
jQuery('.mailgun-list-submit-button').on('click', function () { |
| 427 |
|
| 428 |
var form_id = jQuery(this).data('form-id') |
| 429 |
|
| 430 |
if (jQuery('.mailgun-list-name').length > 0 && jQuery('.' + form_id + ' .mailgun-list-name:checked').length < 1) { |
| 431 |
alert('Please select a list to subscribe to.') |
| 432 |
return |
| 433 |
} |
| 434 |
|
| 435 |
if (jQuery('.' + form_id + ' .mailgun-list-widget-name input') && jQuery('.' + form_id + ' .mailgun-list-widget-name input').val() === '') { |
| 436 |
alert('Please enter your subscription name.') |
| 437 |
return |
| 438 |
} |
| 439 |
|
| 440 |
if (jQuery('.' + form_id + ' .mailgun-list-widget-email input').val() === '') { |
| 441 |
alert('Please enter your subscription email.') |
| 442 |
return |
| 443 |
} |
| 444 |
|
| 445 |
jQuery.ajax({ |
| 446 |
url: '<?php echo admin_url('admin-ajax.php?action=add_list'); ?>', |
| 447 |
action: 'add_list', |
| 448 |
type: 'post', |
| 449 |
dataType: 'json', |
| 450 |
data: jQuery('.' + form_id + '').serialize(), |
| 451 |
success: function (data) { |
| 452 |
data_msg = data.message |
| 453 |
already_exists = false |
| 454 |
if (data_msg !== undefined) { |
| 455 |
already_exists = data_msg.indexOf('Address already exists') > -1 |
| 456 |
} |
| 457 |
|
| 458 |
// success |
| 459 |
if ((data.status === 200)) { |
| 460 |
jQuery('.<?php echo esc_attr($widget_class_id); ?> .widget-list-panel').css('display', 'none') |
| 461 |
jQuery('.<?php echo esc_attr($widget_class_id); ?> .list-form').css('display', 'none') |
| 462 |
jQuery('.<?php echo esc_attr($widget_class_id); ?> .result-panel').css('display', 'block') |
| 463 |
// error |
| 464 |
} else { |
| 465 |
alert(data_msg) |
| 466 |
} |
| 467 |
} |
| 468 |
}) |
| 469 |
}) |
| 470 |
}) |
| 471 |
</script> |
| 472 |
|
| 473 |
<?php |
| 474 |
} |
| 475 |
|
| 476 |
/** |
| 477 |
* Initialize List Form. |
| 478 |
* |
| 479 |
* @param array $atts Form attributes |
| 480 |
* |
| 481 |
* @return string |
| 482 |
* |
| 483 |
* @throws JsonException |
| 484 |
*/ |
| 485 |
public function build_list_form(array $atts): string |
| 486 |
{ |
| 487 |
if (isset($atts['id']) && $atts['id'] != '') { |
| 488 |
$args['widget_id'] = md5(rand(10000, 99999) . $atts['id']); |
| 489 |
|
| 490 |
if (isset($atts['collect_name'])) { |
| 491 |
$args['collect_name'] = true; |
| 492 |
} |
| 493 |
|
| 494 |
if (isset($atts['title'])) { |
| 495 |
$args['list_title'] = $atts['title']; |
| 496 |
} |
| 497 |
|
| 498 |
if (isset($atts['description'])) { |
| 499 |
$args['list_description'] = $atts['description']; |
| 500 |
} |
| 501 |
|
| 502 |
ob_start(); |
| 503 |
$this->list_form($atts['id'], $args); |
| 504 |
return ob_get_clean(); |
| 505 |
} |
| 506 |
|
| 507 |
return '<span>Mailgun list ID needed to render form!</span> |
| 508 |
<br/> |
| 509 |
<strong>Example :</strong> [mailgun id="[your list id]"]'; |
| 510 |
} |
| 511 |
|
| 512 |
/** |
| 513 |
* Initialize List Widget. |
| 514 |
*/ |
| 515 |
public function load_list_widget() |
| 516 |
{ |
| 517 |
register_widget('list_widget'); |
| 518 |
add_shortcode('mailgun', [&$this, 'build_list_form']); |
| 519 |
} |
| 520 |
|
| 521 |
/** |
| 522 |
* @return string |
| 523 |
*/ |
| 524 |
public function getAssetsPath(): string |
| 525 |
{ |
| 526 |
return $this->assetsDir; |
| 527 |
} |
| 528 |
} |
| 529 |
|
| 530 |
$mailgun = Mailgun::getInstance(); |
| 531 |
|
| 532 |
if (@include __DIR__ . '/includes/widget.php') { |
| 533 |
add_action('widgets_init', [&$mailgun, 'load_list_widget']); |
| 534 |
add_action('wp_ajax_nopriv_add_list', [&$mailgun, 'add_list']); |
| 535 |
add_action('wp_ajax_add_list', [&$mailgun, 'add_list']); |
| 536 |
} |
| 537 |
|
| 538 |
if (is_admin()) { |
| 539 |
if (@include __DIR__ . '/includes/admin.php') { |
| 540 |
$mailgunAdmin = new MailgunAdmin(); |
| 541 |
} else { |
| 542 |
$mailgun->deactivate_and_die(__DIR__ . '/includes/admin.php'); |
| 543 |
} |
| 544 |
} |
| 545 |
|
