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Core.php

<?php

namespace WPMailSMTP;

use Exception;
use ReflectionFunction;
use WPMailSMTP\Admin\AdminBarMenu;
use WPMailSMTP\Admin\DashboardWidget;
use WPMailSMTP\Admin\DebugEvents\DebugEvents;
use WPMailSMTP\Admin\Notifications;
use WPMailSMTP\Compatibility\Compatibility;
use WPMailSMTP\Providers\Outlook\Provider as OutlookProvider;
use WPMailSMTP\Queue\Queue;
use WPMailSMTP\Reports\Reports;
use WPMailSMTP\Tasks\Meta;
use WPMailSMTP\UsageTracking\UsageTracking;

/**
 * Class Core to handle all plugin initialization.
 *
 * @since 1.0.0
 */
class Core {

/**
	 * URL to plugin directory.
	 *
	 * @since 1.0.0
	 *
	 * @var string Without trailing slash.
	 */
	public $plugin_url;

/**
	 * URL to Lite plugin assets directory.
	 *
	 * @since 1.5.0
	 *
	 * @var string Without trailing slash.
	 */
	public $assets_url;

/**
	 * Path to plugin directory.
	 *
	 * @since 1.0.0
	 *
	 * @var string Without trailing slash.
	 */
	public $plugin_path;

/**
	 * Shortcut to get access to Pro functionality using wp_mail_smtp()->pro->example().
	 *
	 * @since 1.5.0
	 *
	 * @var \WPMailSMTP\Pro\Pro
	 */
	public $pro;

/**
	 * Core constructor.
	 *
	 * @since 1.0.0
	 */
	public function __construct() {

$this->plugin_url  = rtrim( plugin_dir_url( __DIR__ ), '/\\' );
		$this->assets_url  = $this->plugin_url . '/assets';
		$this->plugin_path = rtrim( plugin_dir_path( __DIR__ ), '/\\' );

if ( $this->is_not_loadable() ) {
			add_action( 'admin_notices', 'wp_mail_smtp_insecure_php_version_notice' );

if ( WP::use_global_plugin_settings() ) {
				add_action( 'network_admin_notices', 'wp_mail_smtp_insecure_php_version_notice' );
			}

return;
		}

// Finally, load all the plugin.
		$this->hooks();
		$this->init_early();
	}

/**
	 * Currently used for Pro version only.
	 *
	 * @since 1.5.0
	 *
	 * @return bool
	 */
	protected function is_not_loadable() {

// Check the Pro.
		if (
			is_readable( $this->plugin_path . '/src/Pro/Pro.php' ) &&
			! $this->is_pro_allowed()
		) {
			// So there is a Pro version, but its PHP version check failed.
			return true;
		}

return false;
	}

/**
	 * Assign all hooks to proper places.
	 *
	 * @since 1.0.0
	 */
	public function hooks() {

// Activation hook.
		register_activation_hook( WPMS_PLUGIN_FILE, [ $this, 'activate' ] );

// Initialize DB migrations.
		add_action( 'plugins_loaded', [ $this, 'get_migrations' ] );

// Load Pro if available.
		add_action( 'plugins_loaded', [ $this, 'get_pro' ] );

// Redefine PHPMailer.
		add_action( 'plugins_loaded', [ $this, 'get_processor' ] );
		add_action( 'plugins_loaded', [ $this, 'replace_phpmailer' ] );

// Various notifications.
		add_action( 'admin_init', [ $this, 'init_notifications' ] );

add_action( 'init', [ $this, 'init' ] );

// Initialize Action Scheduler tasks.
		add_action( 'init', [ $this, 'get_tasks' ], 5 );

add_action( 'plugins_loaded', [ $this, 'get_usage_tracking' ] );
		add_action( 'plugins_loaded', [ $this, 'get_admin_bar_menu' ] );
		add_action( 'plugins_loaded', [ $this, 'get_notifications' ] );
		add_action( 'plugins_loaded', [ $this, 'get_connect' ], 15 );
		add_action( 'plugins_loaded', [ $this, 'get_compatibility' ], 0 );
		add_action( 'plugins_loaded', [ $this, 'get_dashboard_widget' ], 20 );
		add_action( 'plugins_loaded', [ $this, 'get_reports' ] );
		add_action( 'plugins_loaded', [ $this, 'get_db_repair' ] );
		add_action( 'plugins_loaded', [ $this, 'get_connections_manager' ], 20 );
		add_action( 'plugins_loaded', [ $this, 'get_wp_mail_initiator' ] );
		add_action( 'plugins_loaded', [ $this, 'get_queue' ] );
		add_action(
			'plugins_loaded',
			function() {
				( new OptimizedEmailSending() )->hooks();
				( new OutlookProvider() )->hooks();
			}
		);
	}

/**
	 * Initial plugin actions.
	 *
	 * @since 1.0.0
	 */
	public function init() {

// Load translations just in case.
		load_plugin_textdomain( 'wp-mail-smtp', false, plugin_basename( wp_mail_smtp()->plugin_path ) . '/assets/languages' );

/*
		 * Constantly check in admin area, that we don't need to upgrade DB.
		 * Do not wait for the `admin_init` hook, because some actions are already done
		 * on `plugins_loaded`, so migration has to be done before.
		 * We should not fire this in AJAX requests.
		 */
		if ( WP::in_wp_admin() ) {
			$this->get_upgrade();
			$this->detect_conflicts();
		}

// In admin area, regardless of AJAX or not AJAX request.
		if ( is_admin() ) {
			$this->get_admin();
			$this->get_site_health()->init();

// Register Debug Event hooks.
			( new DebugEvents() )->hooks();
		}

// Plugin admin area notices. Display to "admins" only.
		if ( current_user_can( wp_mail_smtp()->get_capability_manage_options() ) ) {
			add_action( 'admin_notices', array( '\WPMailSMTP\WP', 'display_admin_notices' ) );
			add_action( 'admin_notices', array( $this, 'display_general_notices' ) );

if ( WP::use_global_plugin_settings() ) {
				add_action( 'network_admin_notices', array( '\WPMailSMTP\WP', 'display_admin_notices' ) );
				add_action( 'network_admin_notices', array( $this, 'display_general_notices' ) );
			}
		}
	}

/**
	 * Whether the Pro part of the plugin is allowed to be loaded.
	 *
	 * @since 1.5.0
	 * @since 1.6.0 Added a filter.
	 *
	 * @return bool
	 */
	protected function is_pro_allowed() {

$is_allowed = true;

if ( ! is_readable( $this->plugin_path . '/src/Pro/Pro.php' ) ) {
			$is_allowed = false;
		}

return apply_filters( 'wp_mail_smtp_core_is_pro_allowed', $is_allowed );
	}

/**
	 * Get/Load the Pro code of the plugin if it exists.
	 *
	 * @since 1.6.2
	 *
	 * @return \WPMailSMTP\Pro\Pro
	 */
	public function get_pro() {

if ( ! $this->is_pro_allowed() ) {
			return $this->pro;
		}

if ( ! $this->is_pro() ) {
			$this->pro = new \WPMailSMTP\Pro\Pro();
		}

return $this->pro;
	}

/**
	 * Get/Load the Tasks code of the plugin.
	 *
	 * @since 2.1.0
	 *
	 * @return \WPMailSMTP\Tasks\Tasks
	 */
	public function get_tasks() {

static $tasks;

if ( ! isset( $tasks ) ) {
			$tasks = apply_filters( 'wp_mail_smtp_core_get_tasks', new Tasks\Tasks() );
			$tasks->init();
		}

return $tasks;
	}

/**
	 * This method allows to overwrite certain core WP functions, because it's fired:
	 *  - after `muplugins_loaded` hook,
	 *  - before WordPress own `wp-includes/pluggable.php` file include,
	 *  - before `plugin_loaded` and `plugins_loaded` hooks.
	 *
	 * @since 1.5.0
	 */
	protected function init_early() {

// Action Scheduler requires a special early loading procedure.
		$this->load_action_scheduler();

// Load Pro specific files early.
		$pro_files = $this->is_pro_allowed() ? \WPMailSMTP\Pro\Pro::PLUGGABLE_FILES : array();

$files = (array) apply_filters( 'wp_mail_smtp_core_init_early_include_files', $pro_files );

foreach ( $files as $file ) {
			$path = $this->plugin_path . '/' . $file;

if ( is_readable( $path ) ) {
				/** @noinspection PhpIncludeInspection */
				include_once $path;
			}
		}
	}

/**
	 * Load the plugin core processor.
	 *
	 * @since 1.0.0
	 *
	 * @return Processor
	 */
	public function get_processor() {

static $processor;

if ( ! isset( $processor ) ) {

/**
			 * Filters Processor instance.
			 *
			 * @since 4.0.0
			 *
			 * @param Processor $processor Processor instance.
			 */
			$processor = apply_filters(
				'wp_mail_smtp_core_get_processor',
				new Processor()
			);

if ( method_exists( $processor, 'hooks' ) ) {
				$processor->hooks();
			}
		}

return $processor;
	}

/**
	 * Load the plugin admin area.
	 *
	 * @since 1.0.0
	 *
	 * @return Admin\Area
	 */
	public function get_admin() {

static $admin;

if ( ! isset( $admin ) ) {
			$admin = apply_filters( 'wp_mail_smtp_core_get_admin', new Admin\Area() );

if ( method_exists( $admin, 'hooks' ) ) {
				$admin->hooks();
			}
		}

return $admin;
	}

/**
	 * Load the plugin providers loader.
	 *
	 * @since 1.0.0
	 *
	 * @return Providers\Loader
	 */
	public function get_providers() {

static $providers;

if ( ! isset( $providers ) ) {
			$providers = apply_filters( 'wp_mail_smtp_core_get_providers', new Providers\Loader() );
		}

return $providers;
	}

/**
	 * Load the plugin option migrator.
	 *
	 * @deprecated 3.0.0
	 *
	 * @since 1.0.0
	 *
	 * @return Migration
	 */
	public function get_migration() {

_deprecated_function( __METHOD__, '3.0.0' );

static $migration;

if ( ! isset( $migration ) ) {
			$migration = apply_filters( 'wp_mail_smtp_core_get_migration', new Migration() );
		}

return $migration;
	}

/**
	 * Initialize DB migrations.
	 *
	 * @deprecated 4.0.0
	 *
	 * @since 3.0.0
	 */
	public function init_migrations() {

_deprecated_function( __METHOD__, '3.10.0', '\WPMailSMTP\Migrations::init_migrations_on_request' );

$this->get_migrations()->init_migrations_on_request();
	}

/**
	 * Get the Migrations object.
	 *
	 * @since 4.0.0
	 *
	 * @return Migrations
	 */
	public function get_migrations() {

static $migrations;

if ( ! isset( $migrations ) ) {
			$migrations = new Migrations();

$migrations->hooks();
		}

return $migrations;
	}

/**
	 * Load the plugin upgrader.
	 *
	 * @since 1.1.0
	 *
	 * @return Upgrade
	 */
	public function get_upgrade() {

static $upgrade;

if ( ! isset( $upgrade ) ) {
			$upgrade = apply_filters( 'wp_mail_smtp_core_get_upgrade', new Upgrade() );

if ( method_exists( $upgrade, 'run' ) ) {
				$upgrade->run();
			}
		}

return $upgrade;
	}

/**
	 * Get the plugin's WP Site Health object.
	 *
	 * @since 1.9.0
	 *
	 * @return SiteHealth
	 */
	public function get_site_health() {

static $site_health;

if ( ! isset( $site_health ) ) {
			$site_health = apply_filters( 'wp_mail_smtp_core_get_site_health', new SiteHealth() );
		}

return $site_health;
	}

/**
	 * Display various notifications to a user.
	 *
	 * @since 1.0.0
	 */
	public function init_notifications() { }

/**
	 * Display all debug mail-delivery related notices.
	 *
	 * @since 1.3.0
	 * @since 1.6.0 Added a filter that allows to hide debug errors.
	 */
	public static function display_general_notices() {

if ( wp_mail_smtp()->is_blocked() ) {
			?>

<div class="notice <?php echo esc_attr( WP::ADMIN_NOTICE_ERROR ); ?>">
				<p>
					<?php
					$notices[] = sprintf(
						/* translators: %s - plugin name and its version. */
						__( '<strong>EMAILING DISABLED:</strong> The %s is currently blocking all emails from being sent.', 'wp-mail-smtp' ),
						esc_html( 'WP Mail SMTP v' . WPMS_PLUGIN_VER )
					);

if ( Options::init()->is_const_defined( 'general', 'do_not_send' ) ) {
						$notices[] = sprintf(
							/* translators: %1$s - constant name; %2$s - constant value. */
							__( 'To send emails, change the value of the %1$s constant to %2$s.', 'wp-mail-smtp' ),
							'<code>WPMS_DO_NOT_SEND</code>',
							'<code>false</code>'
						);
					} else {
						$notices[] = sprintf(
							/* translators: %s - plugin Misc settings page URL. */
							__( 'To send emails, go to plugin <a href="%s">Misc settings</a> and disable the "Do Not Send" option.', 'wp-mail-smtp' ),
							esc_url( add_query_arg( 'tab', 'misc', wp_mail_smtp()->get_admin()->get_admin_page_url() ) )
						);
					}

if (
						wp_mail_smtp()->get_admin()->is_admin_page( 'tools' ) &&
						(
							! isset( $_GET['tab'] ) ||
							( isset( $_GET['tab'] ) && $_GET['tab'] === 'test' )
						)
					) {
						$notices[] = esc_html__( 'If you create a test email on this page, it will still be sent.', 'wp-mail-smtp' );
					}

echo wp_kses_post( implode( ' ', $notices ) );
					?>
				</p>
			</div>

<?php
			return;
		}

if ( wp_mail_smtp()->get_admin()->is_admin_page() ) {
			wp_mail_smtp()->wp_mail_function_incorrect_location_notice();
		}

if ( wp_mail_smtp()->get_admin()->is_error_delivery_notice_enabled() ) {
			$screen = get_current_screen();

// Skip the error notice if not on plugin page.
			if (
				is_object( $screen ) &&
				strpos( $screen->id, 'page_wp-mail-smtp' ) === false
			) {
				return;
			}

$notice = apply_filters(
				'wp_mail_smtp_core_display_general_notices_email_delivery_error_notice',
				Debug::get_last()
			);

if ( ! empty( $notice ) ) {
				?>

<div class="notice <?php echo esc_attr( WP::ADMIN_NOTICE_ERROR ); ?>">
					<p>
						<?php
						echo wp_kses(
							__( '<strong>Heads up!</strong> The last email your site attempted to send was unsuccessful.', 'wp-mail-smtp' ),
							[
								'strong' => [],
							]
						);
						?>
					</p>

<p>
						<?php
						if ( ! wp_mail_smtp()->get_admin()->is_admin_page() ) {
							printf(
								wp_kses( /* translators: %s - plugin admin page URL. */
									__( 'Please review your WP Mail SMTP settings in <a href="%s">plugin admin area</a>.' ) . ' ',
									array(
										'a' => array(
											'href' => array(),
										),
									)
								),
								esc_url( wp_mail_smtp()->get_admin()->get_admin_page_url() )
							);
						}

printf(
							wp_kses( /* translators: %s - URL to the debug events page. */
								__( 'For more details please try running an Email Test or reading the latest <a href="%s">error event</a>.' ),
								[
									'a' => [
										'href' => [],
									],
								]
							),
							esc_url( DebugEvents::get_page_url() )
						);
						?>
					</p>

<?php
						echo wp_kses(
							apply_filters(
								'wp_mail_smtp_core_display_general_notices_email_delivery_error_notice_footer',
								''
							),
							[
								'p' => [],
								'a' => [
									'href'   => [],
									'target' => [],
									'class'  => [],
									'rel'    => [],
								],
							]
						);
					?>
				</div>

<?php
			}
		}
	}

/**
	 * Check whether we are working with a new plugin install.
	 *
	 * @since 1.3.0
	 *
	 * @return bool
	 */
	protected function is_new_install() {

/*
		 * No previously installed 0.*.
		 * 'wp_mail_smtp_initial_version' option appeared in 1.3.0. So we make sure it exists.
		 * No previous plugin upgrades.
		 */
		if (
			! get_option( 'mailer', false ) &&
			get_option( 'wp_mail_smtp_initial_version', false ) &&
			version_compare( WPMS_PLUGIN_VER, get_option( 'wp_mail_smtp_initial_version' ), '=' )
		) {
			return true;
		}

return false;
	}

/**
	 * Detect if there are plugins activated that will cause a conflict.
	 *
	 * @since 1.3.0
	 * @since 1.5.0 Moved the logic to Conflicts class.
	 */
	public function detect_conflicts() {

// Display only for those who can actually deactivate plugins.
		if ( ! current_user_can( wp_mail_smtp()->get_capability_manage_options() ) ) {
			return;
		}

$conflicts = new Conflicts();

if ( $conflicts->is_detected() ) {
			$conflicts->notify();
		}
	}

/**
	 * Init the \PHPMailer replacement.
	 *
	 * @since 1.0.0
	 *
	 * @return MailCatcherInterface
	 */
	public function replace_phpmailer() {

global $phpmailer;

return $this->replace_w_fake_phpmailer( $phpmailer );
	}

/**
	 * Overwrite default PhpMailer with our MailCatcher.
	 *
	 * @since 1.0.0
	 * @since 1.5.0 Throw external PhpMailer exceptions, inherits default WP behavior.
	 *
	 * @param null $obj PhpMailer object to override with own implementation.
	 *
	 * @return MailCatcherInterface
	 */
	protected function replace_w_fake_phpmailer( &$obj = null ) {

$obj = $this->generate_mail_catcher( true );

return $obj;
	}

/**
	 * What to do on plugin activation.
	 *
	 * @since 1.0.0
	 * @since 2.0.0 Changed from general `plugin_activate` hook to this plugin specific activation hook.
	 */
	public function activate() {

// Store the plugin version when initial install occurred.
		add_option( 'wp_mail_smtp_initial_version', WPMS_PLUGIN_VER, '', false );

// Store the plugin version activated to reference with upgrades.
		update_option( 'wp_mail_smtp_version', WPMS_PLUGIN_VER, false );

// Save default options, only once.
		Options::init()->set( Options::get_defaults(), true );

/**
		 * Store the timestamp of first plugin activation.
		 *
		 * @since 2.1.0
		 */
		add_option( 'wp_mail_smtp_activated_time', time(), '', false );

/**
		 * Store the timestamp of the first plugin activation by license type.
		 *
		 * @since 2.3.0
		 */
		$license_type = is_readable( $this->plugin_path . '/src/Pro/Pro.php' ) ? 'pro' : 'lite';
		$activated    = get_option( 'wp_mail_smtp_activated', [] );

if ( empty( $activated[ $license_type ] ) ) {
			$activated[ $license_type ] = time();
			update_option( 'wp_mail_smtp_activated', $activated );
		}

set_transient( 'wp_mail_smtp_just_activated', true, 60 );

// Add transient to trigger redirect to the Setup Wizard.
		set_transient( 'wp_mail_smtp_activation_redirect', true, 30 );
	}

/**
	 * Whether this is a Pro version of a plugin.
	 *
	 * @since 1.5.0
	 *
	 * @return bool
	 */
	public function is_pro() {

return apply_filters( 'wp_mail_smtp_core_is_pro', ! empty( $this->pro ) );
	}

/**
	 * Get the current license type.
	 *
	 * @since 1.5.0
	 *
	 * @return string Default value: lite.
	 */
	public function get_license_type() {

$type = Options::init()->get( 'license', 'type' );

if ( empty( $type ) ) {
			$type = 'lite';
		}

return strtolower( $type );
	}

/**
	 * Get the current license key.
	 *
	 * @since 1.5.0
	 *
	 * @return string
	 */
	public function get_license_key() {

$key = Options::init()->get( 'license', 'key' );

if ( empty( $key ) ) {
			$key = '';
		}

return $key;
	}

/**
	 * Upgrade link used within the various admin pages.
	 *
	 * @since 1.5.0
	 * @since 1.5.1 Support all UTM params.
	 *
	 * @param array|string $utm Array of UTM params, or if string provided - utm_content URL parameter.
	 *
	 * @return string
	 */
	public function get_upgrade_link( $utm ) {

$url = $this->get_utm_url( 'https://wpmailsmtp.com/lite-upgrade/', $utm );

/**
		 * Filters upgrade link.
		 *
		 * @since 1.5.0
		 *
		 * @param string $url Upgrade link.
		 */
		return apply_filters( 'wp_mail_smtp_core_get_upgrade_link', $url );
	}

/**
	 * Get UTM URL.
	 *
	 * @since 3.4.0
	 *
	 * @param string       $url Base url.
	 * @param array|string $utm Array of UTM params, or if string provided - utm_content URL parameter.
	 *
	 * @return string
	 */
	public function get_utm_url( $url, $utm ) { // phpcs:ignore Generic.Metrics.CyclomaticComplexity.TooHigh

// Defaults.
		$source   = 'WordPress';
		$medium   = 'plugin-settings';
		$campaign = $this->is_pro() ? 'plugin' : 'liteplugin';
		$content  = 'general';
		$locale   = get_user_locale();

if ( is_array( $utm ) ) {
			if ( isset( $utm['source'] ) ) {
				$source = $utm['source'];
			}
			if ( isset( $utm['medium'] ) ) {
				$medium = $utm['medium'];
			}
			if ( isset( $utm['campaign'] ) ) {
				$campaign = $utm['campaign'];
			}
			if ( isset( $utm['content'] ) ) {
				$content = $utm['content'];
			}
			if ( isset( $utm['locale'] ) ) {
				$locale = $utm['locale'];
			}
		} elseif ( is_string( $utm ) ) {
			$content = $utm;
		}

$query_args = [
			'utm_source'   => esc_attr( rawurlencode( $source ) ),
			'utm_medium'   => esc_attr( rawurlencode( $medium ) ),
			'utm_campaign' => esc_attr( rawurlencode( $campaign ) ),
			'utm_locale'   => esc_attr( sanitize_key( $locale ) ),
		];

if ( ! empty( $content ) ) {
			$query_args['utm_content'] = esc_attr( rawurlencode( $content ) );
		}

return add_query_arg( $query_args, $url );
	}

/**
	 * Whether the emailing functionality is blocked, with either an option or a constatnt.
	 *
	 * @since 1.7.0
	 *
	 * @return bool
	 */
	public function is_blocked() {

return (bool) Options::init()->get( 'general', 'do_not_send' );
	}

/**
	 * Whether the white-labeling is enabled.
	 * White-labeling disables the plugin "About us" page, it replaces any plugin marketing texts or images with
	 * white label ones.
	 *
	 * @since 2.0.0
	 *
	 * @return bool
	 */
	public function is_white_labeled() {

return (bool) apply_filters( 'wp_mail_smtp_is_white_labeled', false );
	}

/**
	 * Require the action scheduler in an early plugins_loaded hook (-10).
	 *
	 * @see   https://actionscheduler.org/usage/#load-order
	 *
	 * @since 2.1.0
	 */
	public function load_action_scheduler() {

require_once $this->plugin_path . '/vendor/woocommerce/action-scheduler/action-scheduler.php';
	}

/**
	 * Get the list of all custom DB tables that should be present in the DB.
	 *
	 * @since 2.1.2
	 *
	 * @return array List of table names.
	 */
	public function get_custom_db_tables() {

$tables = [
			Meta::get_table_name(),
			DebugEvents::get_table_name(),
		];

if ( $this->get_queue()->is_enabled() ) {
			$tables[] = Queue::get_table_name();
		}

return apply_filters( 'wp_mail_smtp_core_get_custom_db_tables', $tables );
	}

/**
	 * Generate the correct MailCatcher object based on the PHPMailer version used in WP.
	 *
	 * Also conditionally require the needed class files.
	 *
	 * @see   https://make.wordpress.org/core/2020/07/01/external-library-updates-in-wordpress-5-5-call-for-testing/
	 *
	 * @since 2.2.0
	 *
	 * @param bool $exceptions True if external exceptions should be thrown.
	 *
	 * @return MailCatcherInterface
	 */
	public function generate_mail_catcher( $exceptions = null ) {

$is_old_version = version_compare( get_bloginfo( 'version' ), '5.5-alpha', '<' );

if ( $is_old_version ) {
			if ( ! class_exists( '\PHPMailer', false ) ) {
				require_once ABSPATH . WPINC . '/class-phpmailer.php';
			}

$class_name = MailCatcher::class;
		} else {
			if ( ! class_exists( '\PHPMailer\PHPMailer\PHPMailer', false ) ) {
				require_once ABSPATH . WPINC . '/PHPMailer/PHPMailer.php';
			}

if ( ! class_exists( '\PHPMailer\PHPMailer\Exception', false ) ) {
				require_once ABSPATH . WPINC . '/PHPMailer/Exception.php';
			}

if ( ! class_exists( '\PHPMailer\PHPMailer\SMTP', false ) ) {
				require_once ABSPATH . WPINC . '/PHPMailer/SMTP.php';
			}

$class_name = MailCatcherV6::class;
		}

/**
		 * Filters MailCatcher class name.
		 *
		 * @since 3.7.0
		 *
		 * @param string $mail_catcher The MailCatcher class name.
		 */
		$class_name = apply_filters( 'wp_mail_smtp_core_generate_mail_catcher', $class_name );

$mail_catcher = new $class_name( $exceptions );

if ( $is_old_version ) {
			$mail_catcher::$validator = static function ( $email ) {
				return (bool) is_email( $email );
			};
		}

return $mail_catcher;
	}

/**
	 * Check if the passed object is a valid PHPMailer object.
	 *
	 * @since 2.2.0
	 *
	 * @param object $phpmailer A potential PHPMailer object to be tested.
	 *
	 * @return bool
	 */
	public function is_valid_phpmailer( $phpmailer ) {

return $phpmailer instanceof MailCatcherInterface ||
		       $phpmailer instanceof \PHPMailer ||
		       $phpmailer instanceof \PHPMailer\PHPMailer\PHPMailer;
	}

/**
	 * Force the `mail.from_email_force` plugin option to always return true if the current saved mailer is Gmail.
	 * Alters the plugin options retrieving via the Options::get method.
	 *
	 * The gmail mailer check is performed when this filter is added.
	 *
	 * @deprecated 2.7.0
	 *
	 * @since 2.2.0
	 *
	 * @param mixed  $value The value of the plugin option that is being retrieved via Options::get method.
	 * @param string $group The group of the plugin option that is being retrieved via Options::get method.
	 * @param string $key   The key of the plugin option that is being retrieved via Options::get method.
	 *
	 * @return mixed
	 */
	public function gmail_mailer_get_from_email_force( $value, $group, $key ) {

_deprecated_function( __METHOD__, '2.7.0' );

if ( $group === 'mail' && $key === 'from_email_force' ) {
			$value = true;
		}

return $value;
	}

/**
	 * Load the plugin admin bar menu and initialize it.
	 *
	 * @since 2.3.0
	 *
	 * @return AdminBarMenu
	 */
	public function get_admin_bar_menu() {

static $admin_bar_menu;

if ( ! isset( $admin_bar_menu ) ) {
			$admin_bar_menu = apply_filters(
				'wp_mail_smtp_core_get_admin_bar_menu',
				new AdminBarMenu()
			);

if ( method_exists( $admin_bar_menu, 'init' ) ) {
				$admin_bar_menu->init();
			}
		}

return $admin_bar_menu;
	}

/**
	 * Load the plugin usage tracking.
	 *
	 * @since 2.3.0
	 *
	 * @return UsageTracking
	 */
	public function get_usage_tracking() {

static $usage_tracking;

if ( ! isset( $usage_tracking ) ) {
			$usage_tracking = apply_filters( 'wp_mail_smtp_core_get_usage_tracking', new UsageTracking() );

if ( method_exists( $usage_tracking, 'load' ) ) {
				add_action( 'after_setup_theme', [ $usage_tracking, 'load' ] );
			}
		}

return $usage_tracking;
	}

/**
	 * Load the plugin admin notifications functionality and initializes it.
	 *
	 * @since 2.3.0
	 *
	 * @return Notifications
	 */
	public function get_notifications() {

static $notifications;

if ( ! isset( $notifications ) ) {
			$notifications = apply_filters(
				'wp_mail_smtp_core_get_notifications',
				new Notifications()
			);

if ( method_exists( $notifications, 'init' ) ) {
				$notifications->init();
			}
		}

return $notifications;
	}

/**
	 * Prepare the HTML output for a plugin loader/spinner.
	 *
	 * @since 2.4.0
	 *
	 * @param string $color The color of the loader ('', 'blue' or 'white'), where '' is default orange.
	 * @param string $size  The size of the loader ('lg', 'md', 'sm').
	 *
	 * @return string
	 */
	public function prepare_loader( $color = '', $size = 'md' ) {

$svg_name = 'loading';

if ( in_array( $color, [ 'blue', 'white' ], true ) ) {
			$svg_name .= '-' . $color;
		}

if ( ! in_array( $size, [ 'lg', 'md', 'sm' ], true ) ) {
			$size = 'md';
		}

return '<img src="' . esc_url( $this->plugin_url . '/assets/images/loaders/' . $svg_name . '.svg' ) . '" alt="' . esc_attr__( 'Loading', 'wp-mail-smtp' ) . '" class="wp-mail-smtp-loading wp-mail-smtp-loading-' . $size . '">';
	}

/**
	 * Initialize the Connect functionality.
	 * This has to execute after pro was loaded, since we need check for plugin license type (if pro or not).
	 * That's why it's hooked to the same WP hook (`plugins_loaded`) as `get_pro` with lower priority.
	 *
	 * @since 2.6.0
	 */
	public function get_connect() {

static $connect;

if ( ! isset( $connect ) && ! $this->is_pro() ) {
			$connect = apply_filters( 'wp_mail_smtp_core_get_connect', new Connect() );

if ( method_exists( $connect, 'hooks' ) ) {
				$connect->hooks();
			}
		}

return $connect;
	}

/**
	 * Load the plugin compatibility functionality and initializes it.
	 *
	 * @since 2.8.0
	 *
	 * @return Compatibility
	 */
	public function get_compatibility() {

static $compatibility;

if ( ! isset( $compatibility ) ) {

/**
			 * Filters compatibility instance.
			 *
			 * @since 2.8.0
			 *
			 * @param \WPMailSMTP\Compatibility\Compatibility  $compatibility Compatibility instance.
			 */
			$compatibility = apply_filters( 'wp_mail_smtp_core_get_compatibility', new Compatibility() );

if ( method_exists( $compatibility, 'init' ) ) {
				$compatibility->init();
			}
		}

return $compatibility;
	}

/**
	 * Get the Dashboard Widget object (lite or pro version).
	 *
	 * @since 2.9.0
	 *
	 * @return DashboardWidget
	 */
	public function get_dashboard_widget() {

static $dashboard_widget;

if ( ! isset( $dashboard_widget ) ) {

/**
			 * Filter the dashboard widget class name.
			 *
			 * @since 2.9.0
			 *
			 * @param DashboardWidget $class_name The dashboard widget class name to be instantiated.
			 */
			$class_name       = apply_filters( 'wp_mail_smtp_core_get_dashboard_widget', DashboardWidget::class );
			$dashboard_widget = new $class_name();

if ( method_exists( $dashboard_widget, 'init' ) ) {
				$dashboard_widget->init();
			}
		}

return $dashboard_widget;
	}

/**
	 * Get the reports object (lite or pro version).
	 *
	 * @since 3.0.0
	 *
	 * @return Reports
	 */
	public function get_reports() {

static $reports;

if ( ! isset( $reports ) ) {

/**
			 * Filter the reports class name.
			 *
			 * @since 3.0.0
			 *
			 * @param Reports $class_name The reports class name to be instantiated.
			 */
			$class_name = apply_filters( 'wp_mail_smtp_core_get_reports', Reports::class );
			$reports    = new $class_name();

if ( method_exists( $reports, 'init' ) ) {
				$reports->init();
			}
		}

return $reports;
	}

/**
	 * Get the DBRepair object (lite or pro version).
	 *
	 * @since 3.6.0
	 *
	 * @return DBRepair
	 */
	public function get_db_repair() {

static $db_repair;

if ( ! isset( $db_repair ) ) {

/**
			 * Filter the DBRepair class name.
			 *
			 * @since 3.6.0
			 *
			 * @param DBRepair $class_name The reports class name to be instantiated.
			 */
			$class_name = apply_filters( 'wp_mail_smtp_core_get_db_repair', DBRepair::class );
			$db_repair  = new $class_name();

if ( method_exists( $db_repair, 'hooks' ) ) {
				$db_repair->hooks();
			}
		}

return $db_repair;
	}

/**
	 * Get connections manager.
	 *
	 * @since 3.7.0
	 *
	 * @return ConnectionsManager
	 */
	public function get_connections_manager() {

static $connections_manager = null;

if ( is_null( $connections_manager ) ) {

/**
			 * Filter the connections manager class name.
			 *
			 * @since 3.7.0
			 *
			 * @param ConnectionsManager $connections_manager The connections manager class name to be instantiated.
			 */
			$class_name          = apply_filters( 'wp_mail_smtp_core_get_connections_manager', ConnectionsManager::class );
			$connections_manager = new $class_name();

if ( method_exists( $connections_manager, 'hooks' ) ) {
				$connections_manager->hooks();
			}
		}

return $connections_manager;
	}

/**
	 * Get the `wp_mail` function initiator.
	 *
	 * @since 3.7.0
	 *
	 * @return WPMailInitiator
	 */
	public function get_wp_mail_initiator() {

static $wp_mail_initiator = null;

if ( is_null( $wp_mail_initiator ) ) {

/**
			 * Filter the `wp_mail` function initiator class name.
			 *
			 * @since 3.7.0
			 *
			 * @param WPMailInitiator $wp_mail_initiator The `wp_mail` function initiator class name to be instantiated.
			 */
			$class_name        = apply_filters( 'wp_mail_smtp_core_get_wp_mail_initiator', WPMailInitiator::class );
			$wp_mail_initiator = new $class_name();

if ( method_exists( $wp_mail_initiator, 'hooks' ) ) {
				$wp_mail_initiator->hooks();
			}
		}

return $wp_mail_initiator;
	}

/**
	 * Detect incorrect `wp_mail` function location and display warning.
	 *
	 * @since 3.5.0
	 */
	private function wp_mail_function_incorrect_location_notice() { // phpcs:ignore Generic.Metrics.CyclomaticComplexity.TooHigh

/**
		 * Filters whether to display incorrect `wp_mail` function location warning.
		 *
		 * @since 3.5.0
		 *
		 * @param bool $display Whether to display incorrect `wp_mail` function location warning.
		 */
		$display_notice = apply_filters( 'wp_mail_smtp_core_wp_mail_function_incorrect_location_notice', true );

if ( ! $display_notice || ! defined( 'ABSPATH' ) || ! defined( 'WPINC' ) ) {
			return;
		}

try {
			$wp_mail_reflection = new ReflectionFunction( 'wp_mail' );
			$wp_mail_filepath   = $wp_mail_reflection->getFileName();
			$separator          = defined( 'DIRECTORY_SEPARATOR' ) ? DIRECTORY_SEPARATOR : '/';

$wp_mail_original_filepath = ABSPATH . WPINC . $separator . 'pluggable.php';

if ( str_replace( '\\', '/', $wp_mail_filepath ) === str_replace( '\\', '/', $wp_mail_original_filepath ) ) {
				return;
			}

if ( strpos( $wp_mail_filepath, WPINC . $separator . 'pluggable.php' ) !== false ) {
				return;
			}

$conflict = WP::get_initiator( $wp_mail_filepath );

$message = esc_html__( 'WP Mail SMTP has detected incorrect "wp_mail" function location. Usually, this means that emails will not be sent successfully!', 'wp-mail-smtp' );

if ( $conflict['type'] === 'plugin' ) {
				$message .= '<br><br>' . sprintf(
					/* translators: %s - plugin name. */
					esc_html__( 'It looks like the "%s" plugin is overwriting the "wp_mail" function. Please reach out to the plugin developer on how to disable or remove the "wp_mail" function overwrite to prevent conflicts with WP Mail SMTP.', 'wp-mail-smtp' ),
					esc_html( $conflict['name'] )
				);
			} elseif ( $conflict['type'] === 'mu-plugin' ) {
				$message .= '<br><br>' . sprintf(
					/* translators: %s - must-use plugin name. */
					esc_html__( 'It looks like the "%s" must-use plugin is overwriting the "wp_mail" function. Please reach out to your hosting provider on how to disable or remove the "wp_mail" function overwrite to prevent conflicts with WP Mail SMTP.', 'wp-mail-smtp' ),
					esc_html( $conflict['name'] )
				);
			} elseif ( $wp_mail_filepath === ABSPATH . 'wp-config.php' ) {
				$message .= '<br><br>' . esc_html__( 'It looks like it\'s overwritten in the "wp-config.php" file. Please reach out to your hosting provider on how to disable or remove the "wp_mail" function overwrite to prevent conflicts with WP Mail SMTP.', 'wp-mail-smtp' );
			}

$message .= '<br><br>' . sprintf(
				/* translators: %s - path. */
				esc_html__( 'Current function path: %s', 'wp-mail-smtp' ),
				$wp_mail_filepath . ':' . $wp_mail_reflection->getStartLine()
			);

printf(
				'<div class="notice %1$s"><p>%2$s</p></div>',
				esc_attr( WP::ADMIN_NOTICE_ERROR ),
				wp_kses( $message, [ 'br' => [] ] )
			);
		} catch ( Exception $e ) {
			return;
		}
	}

/**
	 * Get the default capability to manage everything for WP Mail SMTP.
	 *
	 * @since 3.11.0
	 *
	 * @return string
	 */
	public function get_capability_manage_options() {

/**
		 * Filters the default capability to manage everything for WP Mail SMTP.
		 *
		 * @since 3.11.0
		 *
		 * @param string $capability The default capability to manage everything for WP Mail SMTP.
		 */
		return apply_filters( 'wp_mail_smtp_core_get_capability_manage_options', 'manage_options' );
	}

/**
	 * Load the queue functionality.
	 *
	 * @since 4.0.0
	 *
	 * @return Queue
	 */
	public function get_queue() {

static $queue;

if ( ! isset( $queue ) ) {
			/**
			 * Filter the Queue object.
			 *
			 * @since 4.0.0
			 *
			 * @param Queue $queue The Queue object.
			 */
			$queue = apply_filters( 'wp_mail_smtp_core_get_queue', new Queue() );
		}

return $queue;
	}
}

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	nasimsch/nasimsch	0755	2025-07-18 01:26:25
..	dir	-	nasimsch/nasimsch	0755	2025-07-18 01:26:29
Admin	dir	-	nasimsch/nasimsch	0755	2025-07-18 01:26:24
Compatibility	dir	-	nasimsch/nasimsch	0755	2025-07-18 01:26:24
Helpers	dir	-	nasimsch/nasimsch	0755	2025-07-18 01:26:24
Providers	dir	-	nasimsch/nasimsch	0755	2025-07-18 01:26:24
Queue	dir	-	nasimsch/nasimsch	0755	2025-07-18 01:26:25
Reports	dir	-	nasimsch/nasimsch	0755	2025-07-18 01:26:25
Tasks	dir	-	nasimsch/nasimsch	0755	2025-07-18 01:26:25
UsageTracking	dir	-	nasimsch/nasimsch	0755	2025-07-18 01:26:25
AbstractConnection.php	file	1.09 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:23
Conflicts.php	file	15.01 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:24
Connect.php	file	9.18 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:24
Connection.php	file	964 B	nasimsch/nasimsch	0644	2025-07-18 01:26:24
ConnectionInterface.php	file	1.01 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:24
ConnectionsManager.php	file	765 B	nasimsch/nasimsch	0644	2025-07-18 01:26:24
Core.php	file	33.45 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:24
DBRepair.php	file	6.29 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:24
Debug.php	file	3.5 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:24
Geo.php	file	6.76 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:24
MailCatcher.php	file	1.63 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:24
MailCatcherInterface.php	file	1.16 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:24
MailCatcherTrait.php	file	13.43 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:24
MailCatcherV6.php	file	1.47 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:24
Migration.php	file	12.11 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:24
MigrationAbstract.php	file	3.21 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:24
Migrations.php	file	3.59 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:24
OptimizedEmailSending.php	file	1.17 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:24
Options.php	file	46.44 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:24
Processor.php	file	14.06 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:24
SiteHealth.php	file	12.63 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:25
Upgrade.php	file	1.55 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:25
Uploads.php	file	5.44 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:25
WP.php	file	20.08 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:25
WPMailArgs.php	file	4.44 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:25
WPMailInitiator.php	file	4.38 KB	nasimsch/nasimsch	0644	2025-07-18 01:26:25

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