407 lines
16 KiB
PHP
407 lines
16 KiB
PHP
<?php
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/*
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* Plugin Name: FewMail SMTP
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* Plugin URI: https://wenpai.org/plugins/fewmail-smtp
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* Description: A WordPress email plugin that makes it convenient for users to configure SMTP settings.
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* Version: 1.0.5
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* Author: FewMail.com
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* Author URI: https://fewmail.com/
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* License: GPL v2 or later
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* License URI: https://www.gnu.org/licenses/gpl-2.0.html
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* Requires at least: 5.9
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* Requires PHP: 7.4
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* Text Domain: fewmail-smtp
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*/
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if (!defined('ABSPATH')) {
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exit;
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}
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define('FEWMAIL_SMTP_VERSION', '1.0.5');
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define('FEWMAIL_SMTP_PLUGIN_SLUG', 'fewmail-smtp');
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define('FEWMAIL_SMTP_PLUGIN_PAGE', plugin_basename(dirname(__FILE__)) . '%2F' . basename(__FILE__));
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define('FEWMAIL_SMTP_URL', plugins_url('/', __FILE__));
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define('FEWMAIL_SMTP_ASSETS_URL', FEWMAIL_SMTP_URL . 'assets/');
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require_once 'vendor/autoload.php';
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require_once dirname(__FILE__) . '/includes/Setting-Page.php';
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require_once dirname(__FILE__) . '/includes/Config.php';
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use FewMailSmtp\Config;
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use FewMailSmtp\Db;
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register_activation_hook(__FILE__, 'fewmail_smtp_activate');
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add_action('plugins_loaded', 'fewmail_smtp_load_textdomain');
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function fewmail_smtp_load_textdomain() {
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load_plugin_textdomain('fewmail-smtp', false, dirname(plugin_basename(__FILE__)) . '/languages/');
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}
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function fewmail_smtp_activate() {
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ob_start();
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fewmail_smtp_set_options();
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fewmail_smtp_set_stats();
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$output = ob_get_contents();
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if (!empty($output)) {
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error_log('FewMail SMTP Activation Output: ' . bin2hex($output));
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}
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ob_end_clean();
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}
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function fewmail_smtp_set_options() {
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$options = [
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'from' => '',
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'from_name' => '',
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'host' => '',
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'port' => '',
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'smtp_secure' => '',
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'smtp_auth' => 'yes',
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'username' => '',
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'password' => '',
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'disable_logs' => '',
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];
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if (!get_option('fewmail_smtp_options')) {
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add_option('fewmail_smtp_options', $options, '', 'yes');
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}
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fewmail_smtp_install_table();
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}
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function fewmail_smtp_set_stats() {
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$stats = [
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'total_emails' => 0,
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'successful_sends' => 0,
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'failed_sends' => 0,
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'last_send_time' => null
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];
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if (!get_option('fewmail_smtp_stats')) {
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add_option('fewmail_smtp_stats', $stats, '', 'yes');
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}
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}
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function fewmail_smtp_install_table() {
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global $wpdb;
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$tableName = $wpdb->prefix . 'fewmail_smtp_logs';
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$sql = "CREATE TABLE IF NOT EXISTS `" . $tableName . "` (
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`id` BIGINT unsigned NOT NULL AUTO_INCREMENT,
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`timestamp` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
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`to` VARCHAR(200) NOT NULL DEFAULT '0',
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`subject` VARCHAR(200) NOT NULL DEFAULT '0',
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`message` TEXT NULL,
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`headers` TEXT NULL,
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`error` TEXT NULL,
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PRIMARY KEY (`id`)
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) DEFAULT CHARACTER SET = utf8 DEFAULT COLLATE utf8_general_ci;";
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require_once ABSPATH . 'wp-admin/includes/upgrade.php';
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dbDelta($sql);
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if ($wpdb->last_error) {
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error_log('FewMail SMTP table creation error: ' . $wpdb->last_error);
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}
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}
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function fewmail_smtp_setting_page_tabs() {
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return [
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'config' => esc_html__('Config', 'fewmail-smtp'),
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'testing' => esc_html__('Testing', 'fewmail-smtp'),
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'logs' => esc_html__('Logs', 'fewmail-smtp'),
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];
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}
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function fewmail_smtp_get_current_tab() {
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$tabs = fewmail_smtp_setting_page_tabs();
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$current = sanitize_text_field($_GET['tab'] ?? 'config');
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return !isset($tabs[$current]) ? 'config' : $current;
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}
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add_action('admin_menu', 'fewmail_smtp_add_setting_page');
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$options = get_option('fewmail_smtp_options', []);
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if (is_array($options) && isset($options['disable_logs']) && 'yes' === $options['disable_logs']) {
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} else {
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add_filter('wp_mail', 'fewmail_smtp_log_mails', PHP_INT_MAX);
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}
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add_action('wp_mail_failed', 'fewmail_smtp_update_failed_status', PHP_INT_MAX);
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add_action('wp_mail_succeeded', 'fewmail_smtp_update_success_status');
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function fewmail_smtp_log_mails($parts) {
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$data = $parts;
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unset($data['attachments']);
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$stats = get_option('fewmail_smtp_stats', []);
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$stats['total_emails'] = ($stats['total_emails'] ?? 0) + 1;
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update_option('fewmail_smtp_stats', $stats);
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Db::$id = Db::create()->insert($data);
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return $parts;
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}
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function fewmail_smtp_update_failed_status($wp_error) {
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Db::$phpmailer_error = $wp_error;
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$options = get_option('fewmail_smtp_options');
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$stats = get_option('fewmail_smtp_stats', []);
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$stats['failed_sends'] = ($stats['failed_sends'] ?? 0) + 1;
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$stats['last_send_time'] = current_time('mysql');
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update_option('fewmail_smtp_stats', $stats);
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if ('yes' !== $options['disable_logs']) {
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$data = $wp_error->get_error_data('wp_mail_failed');
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unset($data['phpmailer_exception_code']);
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unset($data['attachments']);
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$data['error'] = $wp_error->get_error_message();
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if (!is_numeric(Db::$id)) {
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Db::create()->insert($data);
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} else {
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Db::create()->update($data, ['id' => Db::$id]);
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}
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}
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}
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function fewmail_smtp_update_success_status($mail_data) {
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$stats = get_option('fewmail_smtp_stats', []);
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$stats['successful_sends'] = ($stats['successful_sends'] ?? 0) + 1;
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$stats['last_send_time'] = current_time('mysql');
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update_option('fewmail_smtp_stats', $stats);
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}
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add_action('phpmailer_init', 'fewmail_smtp_init');
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function fewmail_smtp_init($phpmailer) {
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$options = get_option('fewmail_smtp_options');
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if (!is_email($options['from']) || empty($options['host'])) {
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return;
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}
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$phpmailer->Timeout = 5;
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$phpmailer->Mailer = 'smtp';
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$phpmailer->From = $options['from'];
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$phpmailer->FromName = $options['from_name'];
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$phpmailer->Sender = $phpmailer->From;
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$phpmailer->AddReplyTo($phpmailer->From, $phpmailer->FromName);
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$phpmailer->Host = $options['host'];
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$phpmailer->SMTPAuth = 'yes' === $options['smtp_auth'];
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$phpmailer->Port = $options['port'];
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$phpmailer->SMTPSecure = $options['smtp_secure'];
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if ($phpmailer->SMTPAuth) {
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$phpmailer->Username = base64_decode($options['username']);
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$phpmailer->Password = base64_decode($options['password']);
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}
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}
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function fewmail_smtp_check_credentials($options = []) {
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if (!is_admin()) return false;
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if (empty($options)) $options = get_option('fewmail_smtp_options');
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$keys = ['username', 'password', 'host', 'port', 'smtp_auth'];
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foreach ($keys as $key) {
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if (empty($options[$key])) return false;
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}
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global $phpmailer;
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if (!($phpmailer instanceof PHPMailer\PHPMailer\PHPMailer)) {
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require_once ABSPATH . WPINC . '/PHPMailer/PHPMailer.php';
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require_once ABSPATH . WPINC . '/PHPMailer/SMTP.php';
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require_once ABSPATH . WPINC . '/PHPMailer/Exception.php';
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$phpmailer = new PHPMailer\PHPMailer\PHPMailer(true);
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}
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$smtp = $phpmailer->getSMTPInstance();
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$smtp->Timeout = 5;
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$phpmailer->Timeout = 5;
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$phpmailer->Mailer = 'smtp';
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$phpmailer->Host = $options['host'];
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$phpmailer->SMTPAuth = 'yes' === $options['smtp_auth'];
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$phpmailer->Port = $options['port'];
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$phpmailer->SMTPKeepAlive = false;
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if ($phpmailer->SMTPAuth) {
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$phpmailer->Username = base64_decode($options['username']);
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$phpmailer->Password = base64_decode($options['password']);
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}
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$phpmailer->SMTPSecure = $options['smtp_secure'];
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try {
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return $phpmailer->smtpConnect();
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} catch (Throwable $e) {
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error_log('FewMail SMTP credential check failed: ' . $e->getMessage());
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return false;
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}
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}
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function fewmail_smtp_plugin_action_links($links, $file) {
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if ($file == urldecode(FEWMAIL_SMTP_PLUGIN_PAGE)) {
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$page = FEWMAIL_SMTP_PLUGIN_SLUG;
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$links[] = "<a href='tools.php?page={$page}'>" . esc_html__('Settings', 'fewmail-smtp') . "</a>";
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}
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return $links;
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}
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add_filter('plugin_action_links', 'fewmail_smtp_plugin_action_links', 10, 2);
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function fewmail_smtp_add_setting_page() {
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add_submenu_page(
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'tools.php',
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esc_html__('FewMail SMTP', 'fewmail-smtp'),
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esc_html__('SMTP', 'fewmail-smtp'),
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'manage_options',
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FEWMAIL_SMTP_PLUGIN_SLUG,
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'fewmail_smtp_setting_page'
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);
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}
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function fewmail_smtp_init_host_select() {
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$lists = Config::lists();
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$html = '<select id="configSelect" class="regular-text">';
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$html .= "<option value='' data-host='' data-port='' data-secure=''>" . esc_html__('Select a provider', 'fewmail-smtp') . "</option>";
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foreach ($lists as $group_key => $group) {
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$html .= "<optgroup label='" . esc_attr($group['label']) . "'>";
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foreach ($group['services'] as $key => $value) {
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$secure = isset($value['secure']) && $value['secure'] ? 'ssl' : '';
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$provider_key = sanitize_title($key);
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$html .= "<option value='{$provider_key}' data-host='{$value['host']}' data-port='{$value['port']}' data-secure='{$secure}' data-provider-name='" . esc_attr($key) . "'>{$key}</option>";
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}
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$html .= "</optgroup>";
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}
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$html .= '</select>';
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$html .= '<div id="provider-info" style="margin-top: 5px;">';
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$html .= '<span id="provider-link"></span>';
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$html .= '<p id="provider-tip" style="color: #646970; font-size: 12px; margin: 5px 0 0 0;"></p>';
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$html .= '</div>';
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echo wp_kses($html, [
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'select' => ['id' => [], 'class' => []],
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'optgroup' => ['label' => []],
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'option' => ['value' => [], 'data-host' => [], 'data-port' => [], 'data-secure' => [], 'data-provider-name' => []],
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'div' => ['id' => [], 'style' => []],
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'span' => ['id' => []],
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'p' => ['id' => [], 'style' => []],
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]);
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}
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add_action('wp_ajax_fewmail_smtp_get_logs', 'fewmail_smtp_get_logs');
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add_action('wp_ajax_fewmail_smtp_clear_logs', 'fewmail_smtp_clear_logs');
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add_action('wp_ajax_fewmail_smtp_save_auto_clear', 'fewmail_smtp_save_auto_clear');
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add_action('wp_ajax_fewmail_smtp_save_config', 'fewmail_smtp_save_config');
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add_action('wp_ajax_fewmail_smtp_test_email', 'fewmail_smtp_test_email');
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add_action('admin_enqueue_scripts', 'fewmail_smtp_enqueue_scripts');
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function fewmail_smtp_enqueue_scripts() {
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$screen = get_current_screen();
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if (!$screen) return;
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if (strpos($screen->id, 'fewmail-smtp') !== false) {
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wp_enqueue_style('datatable', FEWMAIL_SMTP_ASSETS_URL . 'datatables.min.css', [], FEWMAIL_SMTP_VERSION);
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wp_register_script('datatable', FEWMAIL_SMTP_ASSETS_URL . 'datatables.min.js', ['jquery'], FEWMAIL_SMTP_VERSION, true);
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wp_localize_script('datatable', 'fewmail_smtp', ['ajaxurl' => admin_url('admin-ajax.php')]);
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wp_enqueue_script('datatable');
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}
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}
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function fewmail_smtp_get_logs() {
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check_ajax_referer('fewmail_smtp_logs', 'security');
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$result = Db::create()->get();
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$records_count = Db::create()->records_count();
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foreach ($result as $key => $value) {
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foreach ($value as $index => $data) {
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if ($index == 'message') {
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if (!preg_match('/<br>/', $data) && !preg_match('/<p>/', $data)) $data = nl2br($data);
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$result[$key][$index] = wp_kses_post($data);
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} elseif (is_serialized($data)) {
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$result[$key][$index] = implode(',', array_map('esc_html', maybe_unserialize($data)));
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} else {
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$result[$key][$index] = esc_html($data);
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}
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}
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}
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$response = [
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'draw' => isset($_GET['draw']) ? absint($_GET['draw']) : 1,
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'recordsTotal' => $records_count,
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'recordsFiltered' => $records_count,
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'data' => $result
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];
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if (isset($_GET['search']['value']) && !empty($_GET['search']['value'])) {
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$response['recordsFiltered'] = count($result);
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}
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wp_send_json($response);
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}
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function fewmail_smtp_clear_logs() {
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check_ajax_referer('fewmail_smtp_logs', 'security');
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global $wpdb;
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$table = $wpdb->prefix . 'fewmail_smtp_logs';
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$wpdb->query("TRUNCATE TABLE $table");
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wp_send_json_success(['message' => esc_html__('Logs cleared successfully!', 'fewmail-smtp')]);
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}
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function fewmail_smtp_save_auto_clear() {
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check_ajax_referer('fewmail_smtp_logs', 'security');
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$days = isset($_POST['days']) ? absint($_POST['days']) : 30;
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update_option('fewmail_smtp_auto_clear_days', $days);
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if (!wp_next_scheduled('fewmail_smtp_auto_clear_logs')) {
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wp_schedule_event(time(), 'daily', 'fewmail_smtp_auto_clear_logs');
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}
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wp_send_json_success(['message' => esc_html__('Auto-clear settings saved!', 'fewmail-smtp')]);
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}
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function fewmail_smtp_save_config() {
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check_ajax_referer('fewmail_smtp_config', 'fewmail_smtp_config-nonce');
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if (!current_user_can('manage_options')) {
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wp_send_json_error(['message' => esc_html__('Insufficient privileges!', 'fewmail-smtp')]);
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}
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$options = [];
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$options['from'] = sanitize_email(wp_unslash(trim($_POST['from'])));
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$options['from_name'] = sanitize_text_field(trim($_POST['from_name']));
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$options['host'] = sanitize_text_field(wp_unslash(trim($_POST['host'])));
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$options['smtp_secure'] = sanitize_text_field(wp_unslash(trim($_POST['smtp_secure'])));
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$options['port'] = is_numeric(trim($_POST['port'])) ? absint(trim($_POST['port'])) : '';
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$options['smtp_auth'] = sanitize_text_field(wp_unslash(trim($_POST['smtp_auth'])));
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$options['username'] = base64_encode(sanitize_text_field(wp_unslash(trim($_POST['username']))));
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$options['password'] = base64_encode(sanitize_text_field(trim($_POST['password'])));
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$options['disable_logs'] = isset($_POST['disable_logs']) ? 'yes' : '';
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update_option('fewmail_smtp_options', $options);
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if (fewmail_smtp_check_credentials($options)) {
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wp_send_json_success(['message' => esc_html__('Configuration saved successfully!', 'fewmail-smtp')]);
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} else {
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wp_send_json_error(['message' => esc_html__('Configuration error, please check and resave!', 'fewmail-smtp')]);
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}
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}
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function fewmail_smtp_test_email() {
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check_ajax_referer('fewmail_smtp_testing', 'fewmail_smtp_testing-nonce');
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if (!current_user_can('manage_options')) {
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wp_send_json_error(['message' => esc_html__('Insufficient privileges!', 'fewmail-smtp')]);
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}
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$to = sanitize_email(wp_unslash(trim($_POST['to'])));
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$subject = sanitize_text_field(trim($_POST['subject']));
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$message = sanitize_textarea_field(trim($_POST['message']));
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if (!empty($to) && is_email($to) && !empty($subject) && !empty($message)) {
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global $phpmailer;
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if (!($phpmailer instanceof PHPMailer\PHPMailer\PHPMailer)) {
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require_once ABSPATH . WPINC . '/PHPMailer/PHPMailer.php';
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require_once ABSPATH . WPINC . '/PHPMailer/SMTP.php';
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require_once ABSPATH . WPINC . '/PHPMailer/Exception.php';
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$phpmailer = new PHPMailer\PHPMailer\PHPMailer(true);
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}
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$phpmailer->Timeout = 5;
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try {
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$result = wp_mail($to, $subject, $message);
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if ($result === true) {
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wp_send_json_success(['message' => esc_html__('Email sent!', 'fewmail-smtp')]);
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} else {
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$error = Db::$phpmailer_error ? Db::$phpmailer_error->get_error_message() : esc_html__('Email failed to send.', 'fewmail-smtp');
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wp_send_json_error(['message' => $error]);
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}
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} catch (Exception $e) {
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wp_send_json_error(['message' => esc_html__('SMTP connection failed: ' . $e->getMessage(), 'fewmail-smtp')]);
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}
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} else {
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wp_send_json_error(['message' => esc_html__('Fields are not filled in or there is an error.', 'fewmail-smtp')]);
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}
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}
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add_action('fewmail_smtp_auto_clear_logs', 'fewmail_smtp_auto_clear_logs');
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function fewmail_smtp_auto_clear_logs() {
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global $wpdb;
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$days = get_option('fewmail_smtp_auto_clear_days', 30);
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$table = $wpdb->prefix . 'fewmail_smtp_logs';
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$wpdb->query($wpdb->prepare("DELETE FROM $table WHERE timestamp < DATE_SUB(NOW(), INTERVAL %d DAY)", $days));
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}
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// Integrate UpdatePulse Server for updates using PUC v5.3
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require_once plugin_dir_path(__FILE__) . 'lib/plugin-update-checker/plugin-update-checker.php';
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use YahnisElsts\PluginUpdateChecker\v5p3\PucFactory;
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$fewmailSmtpUpdateChecker = PucFactory::buildUpdateChecker(
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'https://updates.weixiaoduo.com/fewmail-smtp.json',
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__FILE__,
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'fewmail-smtp'
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);
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