| 1 |
<?php |
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/** |
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* Plugin Name: Mailgun |
| 4 |
* Plugin URI: http://wordpress.org/extend/plugins/mailgun/ |
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* Description: Mailgun integration for WordPress |
| 6 |
* Version: 2.2.2 |
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* Requires PHP: 7.4 |
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* Requires at least: 5.6 |
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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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* @package Mailgun |
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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 |
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* 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 |
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* the Free Software Foundation; either version 2 of the License, or |
| 25 |
* (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, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 29 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* 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" - |
| 39 |
* 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 Mailgun $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 string $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 string $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 string $assetsDir; |
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|
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/** |
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* @var string |
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*/ |
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private string $api_endpoint; |
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|
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/** |
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* Setup shared functionality for Admin and Front End. |
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*/ |
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public function __construct() { |
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$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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$this->deactivate_and_die( __DIR__ . '/includes/wp-mail-smtp.php' ); |
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} |
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} |
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add_filter( 'wp_mail', 'mg_smtp_mail_filter' ); |
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add_action( 'phpmailer_init', array( &$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(): Mailgun { |
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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 $defaultValue Default value to return if option is not found |
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* @return mixed |
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*/ |
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public function get_option( string $option, ?array $options = null, bool $defaultValue = false ) { |
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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 $defaultValue; |
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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 $phpmailer The PHPMailer object to modify by reference |
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* |
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* @return void |
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*/ |
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public function phpmailer_init( &$phpmailer ): void { |
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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( |
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sprintf( 'PHPMailer configured to send via %s:%s', $phpmailer->Host, $phpmailer->Port ), |
| 182 |
'DEBUG' |
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); |
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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 string $file files critical to plugin functionality |
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* |
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* @return void |
| 193 |
*/ |
| 194 |
public function deactivate_and_die( $file ): void { |
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load_plugin_textdomain( 'mailgun', false, 'mailgun/languages' ); |
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$message = sprintf( |
| 197 |
__( '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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); |
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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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public function api_call( string $uri, array $params = [], string $method = 'POST' ): string { |
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$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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if ( ! function_exists( 'mg_api_get_region' ) ) { |
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include __DIR__ . '/includes/mg-filter.php'; |
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} |
| 225 |
$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; |
| 230 |
$headers = [ |
| 231 |
'Authorization' => 'Basic ' . base64_encode( "api:{$apiKey}" ), |
| 232 |
]; |
| 233 |
|
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switch ( $method ) { |
| 235 |
case 'GET': |
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$params['sess'] = ''; |
| 237 |
$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': |
| 242 |
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'] = hash( 'sha256', 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 ); |
| 260 |
if ( ! is_wp_error( $result ) ) { |
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return $result['body']; |
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} |
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|
| 264 |
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 ) ) { |
| 269 |
if ( isset( $result['response'] ) ) { |
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return $result['response']['message'] ?? ''; |
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} |
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} |
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|
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return ''; |
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} |
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|
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/** |
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* Get account associated lists. |
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* |
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* @return array |
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* |
| 282 |
* @throws JsonException |
| 283 |
*/ |
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public function get_lists(): array { |
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$results = []; |
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|
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$lists_json = $this->api_call( 'lists', [], 'GET' ); |
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|
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$lists_arr = json_decode( $lists_json, true, 512, JSON_THROW_ON_ERROR ); |
| 290 |
if ( isset( $lists_arr['items'] ) && ! empty( $lists_arr['items'] ) ) { |
| 291 |
$results = $lists_arr['items']; |
| 292 |
} |
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|
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return $results; |
| 295 |
} |
| 296 |
|
| 297 |
/** |
| 298 |
* @return array |
| 299 |
* @throws JsonException |
| 300 |
*/ |
| 301 |
public function getTrackingSettings(): array |
| 302 |
{ |
| 303 |
$domain = ( defined( 'MAILGUN_DOMAIN' ) && MAILGUN_DOMAIN ) ? MAILGUN_DOMAIN : $this->get_option( 'domain' ); |
| 304 |
if (!$domain) { |
| 305 |
return []; |
| 306 |
} |
| 307 |
$settings = $this->api_call(sprintf("domains/%s/tracking", $domain), [], 'GET' ); |
| 308 |
|
| 309 |
return json_decode( $settings, true, 512, JSON_THROW_ON_ERROR ); |
| 310 |
} |
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|
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/** |
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* Handle add list ajax post. |
| 314 |
* |
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* @return void json |
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* |
| 317 |
* @throws JsonException |
| 318 |
*/ |
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public function add_list(): void { |
| 320 |
if ( ! isset( $_POST['mailgun_nonce'] ) || ! wp_verify_nonce( sanitize_text_field( wp_unslash( $_POST['mailgun_nonce'] ) ), 'mailgun_subscribe' ) ) { |
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wp_send_json( [ 'status' => 403, 'message' => 'Invalid request.' ], 403 ); |
| 322 |
return; |
| 323 |
} |
| 324 |
|
| 325 |
$name = sanitize_text_field( $_POST['name'] ?? null ); |
| 326 |
$email = sanitize_text_field( $_POST['email'] ?? null ); |
| 327 |
$list_addresses = []; |
| 328 |
|
| 329 |
$valid_lists = array_column( $this->get_lists(), 'address' ); |
| 330 |
|
| 331 |
foreach ( ( $_POST['addresses'] ?? [] ) as $address => $val ) { |
| 332 |
$sanitized_address = sanitize_text_field( $address ); |
| 333 |
if ( in_array( $sanitized_address, $valid_lists, true ) ) { |
| 334 |
$list_addresses[ $sanitized_address ] = sanitize_text_field( $val ); |
| 335 |
} |
| 336 |
} |
| 337 |
|
| 338 |
if ( ! empty( $list_addresses ) ) { |
| 339 |
$result = []; |
| 340 |
foreach ( $list_addresses as $address => $val ) { |
| 341 |
$result[] = $this->api_call( |
| 342 |
"lists/{$address}/members", |
| 343 |
[ |
| 344 |
'address' => $email, |
| 345 |
'name' => $name, |
| 346 |
] |
| 347 |
); |
| 348 |
} |
| 349 |
$message = 'Thank you!'; |
| 350 |
if ( $result ) { |
| 351 |
$message = 'Something went wrong'; |
| 352 |
$response = json_decode( $result[0], true ); |
| 353 |
if ( is_array( $response ) && isset( $response['message'] ) ) { |
| 354 |
$message = $response['message']; |
| 355 |
} |
| 356 |
} |
| 357 |
echo json_encode( |
| 358 |
[ |
| 359 |
'status' => 200, |
| 360 |
'message' => $message, |
| 361 |
], |
| 362 |
JSON_THROW_ON_ERROR |
| 363 |
); |
| 364 |
} else { |
| 365 |
echo json_encode( |
| 366 |
[ |
| 367 |
'status' => 500, |
| 368 |
'message' => 'Uh oh. We weren\'t able to add you to the list' . count( $list_addresses ) ? 's.' : '. Please try again.', |
| 369 |
], |
| 370 |
JSON_THROW_ON_ERROR |
| 371 |
); |
| 372 |
} |
| 373 |
wp_die(); |
| 374 |
} |
| 375 |
|
| 376 |
/** |
| 377 |
* Frontend List Form. |
| 378 |
* |
| 379 |
* @param string $list_address Mailgun address list id |
| 380 |
* @param array $args widget arguments |
| 381 |
* @throws JsonException |
| 382 |
*/ |
| 383 |
public function list_form( string $list_address, array $args = []): void { |
| 384 |
$widgetId = $args['widget_id'] ?? 0; |
| 385 |
$widget_class_id = "mailgun-list-widget-{$widgetId}"; |
| 386 |
$form_class_id = "list-form-{$widgetId}"; |
| 387 |
|
| 388 |
// List addresses from the plugin config |
| 389 |
$list_addresses = array_map( 'trim', explode( ',', $list_address ) ); |
| 390 |
|
| 391 |
// All list info from the API; used for list info when more than one list is available to subscribe to |
| 392 |
$all_list_addresses = $this->get_lists(); |
| 393 |
?> |
| 394 |
<div class="mailgun-list-widget-front <?php echo esc_attr( $widget_class_id ); ?> widget"> |
| 395 |
<form class="list-form <?php echo esc_attr( $form_class_id ); ?>"> |
| 396 |
<div class="mailgun-list-widget-inputs"> |
| 397 |
<?php if ( isset( $args['list_title'] ) ) : ?> |
| 398 |
<div class="mailgun-list-title"> |
| 399 |
<h4 class="widget-title"> |
| 400 |
<span><?php echo wp_kses_data( $args['list_title'] ); ?></span> |
| 401 |
</h4> |
| 402 |
</div> |
| 403 |
<?php endif; ?> |
| 404 |
<?php if ( isset( $args['list_description'] ) ) : ?> |
| 405 |
<div class="mailgun-list-description"> |
| 406 |
<p class="widget-description"> |
| 407 |
<span><?php echo wp_kses_data( $args['list_description'] ); ?></span> |
| 408 |
</p> |
| 409 |
</div> |
| 410 |
<?php endif; ?> |
| 411 |
<?php if ( isset( $args['collect_name'] ) && (int) $args['collect_name'] === 1 ) : ?> |
| 412 |
<p class="mailgun-list-widget-name"> |
| 413 |
<label><strong>Name:</strong></label> |
| 414 |
<input type="text" name="name" placeholder="Name"/> |
| 415 |
</p> |
| 416 |
<?php endif; ?> |
| 417 |
<p class="mailgun-list-widget-email"> |
| 418 |
<label><strong>Email:</strong></label> |
| 419 |
<input type="text" name="email" placeholder="Email"/> |
| 420 |
</p> |
| 421 |
</div> |
| 422 |
|
| 423 |
<div class="mailgun-list-widget-lists"> |
| 424 |
<?php if ( count( $list_addresses ) > '1' ) : ?> |
| 425 |
<ul class="mailgun-lists" style="list-style: none;"> |
| 426 |
<?php |
| 427 |
foreach ( $all_list_addresses as $la ) : |
| 428 |
if ( ! in_array( $la['address'], $list_addresses, true ) ) : |
| 429 |
continue; |
| 430 |
endif; |
| 431 |
?> |
| 432 |
<li> |
| 433 |
<input type="checkbox" class="mailgun-list-name" |
| 434 |
name="addresses[<?php echo esc_attr( $la['address'] ); ?>]"/> <?php echo esc_attr( $la['name'] ?: $la['address'] ); ?> |
| 435 |
</li> |
| 436 |
<?php endforeach; ?> |
| 437 |
</ul> |
| 438 |
<?php else : ?> |
| 439 |
<input type="hidden" name="addresses[<?php echo esc_attr( $list_addresses[0] ); ?>]" value="on"/> |
| 440 |
<?php endif; ?> |
| 441 |
|
| 442 |
<input class="mailgun-list-submit-button" data-form-id="<?php echo esc_attr( $form_class_id ); ?>" type="button" |
| 443 |
value="Subscribe"/> |
| 444 |
<input type="hidden" name="mailgun-submission" value="1"/> |
| 445 |
<?php wp_nonce_field( 'mailgun_subscribe', 'mailgun_nonce' ); ?></div> |
| 446 |
|
| 447 |
</form> |
| 448 |
<div class="widget-list-panel result-panel" style="display:none;"> |
| 449 |
<span>Thank you for subscribing!</span> |
| 450 |
</div> |
| 451 |
</div> |
| 452 |
|
| 453 |
<script> |
| 454 |
jQuery(document).ready(function () { |
| 455 |
|
| 456 |
jQuery('.mailgun-list-submit-button').on('click', function () { |
| 457 |
|
| 458 |
var form_id = jQuery(this).data('form-id') |
| 459 |
|
| 460 |
if (jQuery('.mailgun-list-name').length > 0 && jQuery('.' + form_id + ' .mailgun-list-name:checked').length < 1) { |
| 461 |
alert('Please select a list to subscribe to.') |
| 462 |
return |
| 463 |
} |
| 464 |
|
| 465 |
if (jQuery('.' + form_id + ' .mailgun-list-widget-name input') && jQuery('.' + form_id + ' .mailgun-list-widget-name input').val() === '') { |
| 466 |
alert('Please enter your subscription name.') |
| 467 |
return |
| 468 |
} |
| 469 |
|
| 470 |
if (jQuery('.' + form_id + ' .mailgun-list-widget-email input').val() === '') { |
| 471 |
alert('Please enter your subscription email.') |
| 472 |
return |
| 473 |
} |
| 474 |
|
| 475 |
// Email validation regex pattern |
| 476 |
var emailPattern = /.+@.+\..{2,}/; |
| 477 |
|
| 478 |
if (!emailPattern.test(jQuery('.' + form_id + ' .mailgun-list-widget-email input').val())) { |
| 479 |
alert('Please enter a valid email address.') |
| 480 |
return |
| 481 |
} |
| 482 |
|
| 483 |
jQuery.ajax({ |
| 484 |
url: '<?php echo admin_url( 'admin-ajax.php?action=add_list' ); ?>', |
| 485 |
action: 'add_list', |
| 486 |
type: 'post', |
| 487 |
dataType: 'json', |
| 488 |
data: jQuery('.' + form_id + '').serialize(), |
| 489 |
success: function (data) { |
| 490 |
data_msg = data.message |
| 491 |
already_exists = false |
| 492 |
if (data_msg !== undefined) { |
| 493 |
already_exists = data_msg.indexOf('Address already exists') > -1 |
| 494 |
} |
| 495 |
|
| 496 |
// success |
| 497 |
if ((data.status === 200)) { |
| 498 |
jQuery('.<?php echo esc_attr( $widget_class_id ); ?> .widget-list-panel').css('display', 'none') |
| 499 |
jQuery('.<?php echo esc_attr( $widget_class_id ); ?> .list-form').css('display', 'none') |
| 500 |
jQuery('.<?php echo esc_attr( $widget_class_id ); ?> .result-panel').css('display', 'block') |
| 501 |
// error |
| 502 |
} else { |
| 503 |
alert(data_msg) |
| 504 |
} |
| 505 |
} |
| 506 |
}) |
| 507 |
}) |
| 508 |
}) |
| 509 |
</script> |
| 510 |
|
| 511 |
<?php |
| 512 |
} |
| 513 |
|
| 514 |
/** |
| 515 |
* Initialize List Form. |
| 516 |
* |
| 517 |
* @param array $atts Form attributes |
| 518 |
* |
| 519 |
* @return string |
| 520 |
* |
| 521 |
* @throws JsonException |
| 522 |
*/ |
| 523 |
public function build_list_form( array $atts ): string { |
| 524 |
if ( isset( $atts['id'] ) && $atts['id'] !== '' ) { |
| 525 |
$args['widget_id'] = hash( 'sha256', rand( 10000, 99999 ) . $atts['id'] ); |
| 526 |
|
| 527 |
if (isset( $atts['collect_name'] ) ) { |
| 528 |
$args['collect_name'] = true; |
| 529 |
} |
| 530 |
|
| 531 |
if (isset( $atts['title'] ) ) { |
| 532 |
$args['list_title'] = $atts['title']; |
| 533 |
} |
| 534 |
|
| 535 |
if (isset( $atts['description'] ) ) { |
| 536 |
$args['list_description'] = $atts['description']; |
| 537 |
} |
| 538 |
|
| 539 |
ob_start(); |
| 540 |
$this->list_form( $atts['id'], $args ); |
| 541 |
return ob_get_clean(); |
| 542 |
} |
| 543 |
|
| 544 |
return '<span>Mailgun list ID needed to render form!</span> |
| 545 |
<br/> |
| 546 |
<strong>Example :</strong> [mailgun id="[your list id]"]'; |
| 547 |
} |
| 548 |
|
| 549 |
/** |
| 550 |
* Initialize List Widget. |
| 551 |
*/ |
| 552 |
public function load_list_widget() { |
| 553 |
register_widget( 'List_Widget' ); |
| 554 |
add_shortcode( 'mailgun', array( &$this, 'build_list_form' ) ); |
| 555 |
} |
| 556 |
|
| 557 |
/** |
| 558 |
* @return string |
| 559 |
*/ |
| 560 |
public function getAssetsPath(): string { |
| 561 |
return $this->assetsDir; |
| 562 |
} |
| 563 |
} |
| 564 |
|
| 565 |
$mailgun = Mailgun::getInstance(); |
| 566 |
|
| 567 |
if (include __DIR__ . '/includes/widget.php' ) { |
| 568 |
add_action('widgets_init', array( &$mailgun, 'load_list_widget' )); |
| 569 |
add_action('wp_ajax_nopriv_add_list', array( &$mailgun, 'add_list' )); |
| 570 |
add_action('wp_ajax_add_list', array( &$mailgun, 'add_list' )); |
| 571 |
} |
| 572 |
|
| 573 |
if (is_admin()) { |
| 574 |
if (include __DIR__ . '/includes/admin.php') { |
| 575 |
$mailgunAdmin = new MailgunAdmin(); |
| 576 |
} else { |
| 577 |
$mailgun->deactivate_and_die(__DIR__ . '/includes/admin.php'); |
| 578 |
} |
| 579 |
} |
| 580 |
|
