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File: /var/www/itt.kaunokolegija.lt/wp-content/plugins/mainwp-child/class/class-mainwp-child.php
<?php
/**
 * MainWP Child
 *
 * @package MainWP\Child
 */

namespace MainWP\Child;

// phpcs:disable -- required for debugging.
if ( isset( $_REQUEST['mainwpsignature'] ) && ( ! defined('MAINWP_CHILD_DEBUG') || false === MAINWP_CHILD_DEBUG ) ) {
    ini_set( 'display_errors', false );
    error_reporting( 0 );
}

// phpcs:enable

require_once ABSPATH . '/wp-admin/includes/file.php'; // NOSONAR - WP compatible.
require_once ABSPATH . '/wp-admin/includes/plugin.php'; // NOSONAR - WP compatible.

/**
 * Class MainWP_Child
 *
 * Manage all MainWP features.
 */
class MainWP_Child {

    /**
     * Public static variable containing the latest MainWP Child plugin version.
     *
     * @var string MainWP Child plugin version.
     */
    public static $version = '5.4.0.8'; // NOSONAR - not IP.

    /**
     * Private variable containing the latest MainWP Child update version.
     *
     * @var string MainWP Child update version.
     */
    private $update_version = '1.6';

    /**
     * Public variable containing the MainWP Child plugin slug.
     *
     * @var string MainWP Child plugin slug.
     */
    public $plugin_slug;

    /**
     * MainWP_Child constructor.
     *
     * Run any time class is called.
     *
     * @param resource $plugin_file MainWP Child plugin file.
     *
     * @uses \MainWP\Child\MainWP_Child_Branding::save_branding_options()
     * @uses \MainWP\Child\MainWP_Child_Plugins_Check::instance()
     * @uses \MainWP\Child\MainWP_Child_Themes_Check::instance()
     * @uses \MainWP\Child\MainWP_Child_Updates::get_instance()
     * @uses \MainWP\Child\MainWP_Client_Report::init()
     * @uses \MainWP\Child\MainWP_Clone::init()
     * @uses \MainWP\Child\MainWP_Connect::check_other_auth()
     * @uses \MainWP\Child\MainWP_Pages::init()
     * @uses \MainWP\Child\MainWP_Helper::update_option()
     * @uses \MainWP\Child\MainWP_Utility::run_saved_snippets()
     * @uses \MainWP\Child\MainWP_Utility::get_class_name()
     */
    public function __construct( $plugin_file ) {
        $this->update();
        $this->load_all_options();

        $this->plugin_slug = plugin_basename( $plugin_file );

        add_action( 'template_redirect', array( $this, 'template_redirect' ) );
        add_action( 'activated_plugin', array( $this, 'hook_activated_plugin' ) );
        add_action( 'init', array( &$this, 'init_check_login' ), 1 );
        add_action( 'init', array( &$this, 'parse_init' ), 9999 );
        add_action( 'init', array( &$this, 'localization' ), 33 );
        add_action( 'init', array( &$this, 'init_hooks' ), 9 );
        add_action( 'admin_init', array( &$this, 'admin_init' ) );
        add_action( 'plugin_action_links_mainwp-child/mainwp-child.php', array( &$this, 'plugin_settings_link' ) );

        // support for better detection for premium plugins.
        add_action( 'pre_current_active_plugins', array( MainWP_Child_Updates::get_instance(), 'detect_premium_themesplugins_updates' ) );

        // support for better detection for premium themes.
        add_action( 'core_upgrade_preamble', array( MainWP_Child_Updates::get_instance(), 'detect_premium_themesplugins_updates' ) );

        MainWP_Pages::get_instance()->init();

        // Initiate MainWP Cache Control class.
        MainWP_Child_Cache_Purge::instance();

        // Initiate MainWP Child API Backups class.
        MainWP_Child_Api_Backups::instance();

        if ( is_admin() ) {
            MainWP_Helper::update_option( 'mainwp_child_plugin_version', static::$version, 'yes' );
        }

        MainWP_Connect::instance()->check_other_auth();

        MainWP_Clone::instance()->init();
        MainWP_Client_Report::instance()->init();
        MainWP_Child_Plugins_Check::instance();
        MainWP_Child_Themes_Check::instance();
        MainWP_Utility::instance()->run_saved_snippets();
        MainWP_Child_Vulnerability_Checker::instance();

        if ( defined( 'WP_CLI' ) && WP_CLI ) {
            MainWP_Child_WP_CLI_Command::init();
        }

        /**
         * Initiate Branding Options.
         */
        if ( ! get_option( 'mainwp_child_pubkey' ) ) {
            MainWP_Child_Branding::instance()->save_branding_options( 'branding_disconnected', 'yes' );
        }

        if ( defined( 'DOING_CRON' ) && DOING_CRON && isset( $_GET['mainwp_child_run'] ) && ! empty( $_GET['mainwp_child_run'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification
            add_action( 'init', array( MainWP_Utility::get_class_name(), 'cron_active' ), PHP_INT_MAX );
        }

        /**
         * Action to response data result.
         *
         * @since 4.3
         */
        add_action( 'mainwp_child_write', array( MainWP_Helper::class, 'write' ) );

        add_filter( 'mainwp_child_create_action_nonce', array( MainWP_Utility::class, 'hook_create_nonce_action' ), 10, 2 );
        add_filter( 'mainwp_child_verify_authed_acion_nonce', array( MainWP_Utility::class, 'hook_verify_authed_action_nonce' ), 10, 2 );
        add_filter( 'mainwp_child_get_ping_nonce', array( MainWP_Utility::class, 'hook_get_ping_nonce' ), 10, 2 );
        add_filter( 'mainwp_child_get_encrypted_option', array( MainWP_Child_Keys_Manager::class, 'hook_get_encrypted_option' ), 10, 3 );
    }

    /**
     * Method load_all_options()
     *
     * Load all MainWP Child plugin options.
     *
     * @return array|bool Return array of options or false on failure.
     */
    public function load_all_options() { //phpcs:ignore -- NOSONAR - complex.

        /**
         * WP Database object.
         *
         * @global object $wpdb WordPress object.
         */
        global $wpdb;

        if ( ! defined( 'WP_INSTALLING' ) || ! is_multisite() ) {
            $alloptions = wp_cache_get( 'alloptions', 'options' );
        } else {
            $alloptions = false;
        }

        if ( ! defined( 'WP_INSTALLING' ) || ! is_multisite() ) {
            $notoptions = wp_cache_get( 'notoptions', 'options' );
        } else {
            $notoptions = false;
        }

        if ( ! isset( $alloptions['mainwp_child_pubkey'] ) ) {
            $suppress = $wpdb->suppress_errors();
            $options  = array(
                'mainwp_child_auth',
                'mainwp_child_reports_db',
                'mainwp_child_pluginDir',
                'mainwp_updraftplus_hide_plugin',
                'mainwp_backwpup_ext_enabled',
                'mainwp_child_server',
                'mainwp_pagespeed_hide_plugin',
                'mainwp_child_clone_permalink',
                'mainwp_child_restore_permalink',
                'mainwp_ext_snippets_enabled',
                'mainwp_child_pubkey',
                'mainwp_security',
                'mainwp_backupwordpress_ext_enabled',
                'mainwp_pagespeed_ext_enabled',
                'mainwp_linkschecker_ext_enabled',
                'mainwp_child_branding_settings',
                'mainwp_child_plugintheme_days_outdate',
                'mainwp_wp_staging_ext_enabled',
                'mainwp_child_connected_admin',
                'mainwp_child_actions_saved_number_of_days',
                'mainwp_child_pingnonce',
            );
            $query    = "SELECT option_name, option_value FROM $wpdb->options WHERE option_name in (";
            foreach ( $options as $option ) {
                $query .= "'" . $option . "', ";
            }
            $query  = substr( $query, 0, strlen( $query ) - 2 );
            $query .= ")"; // phpcs:ignore -- simple style problem.

            $alloptions_db = $wpdb->get_results( $query ); // phpcs:ignore -- safe query, required to achieve desired results, pull request solutions appreciated.
            $wpdb->suppress_errors( $suppress );
            if ( ! is_array( $alloptions ) ) {
                $alloptions = array();
            }
            if ( is_array( $alloptions_db ) ) {
                foreach ( (array) $alloptions_db as $o ) {
                    $alloptions[ $o->option_name ] = $o->option_value;
                    unset( $options[ array_search( $o->option_name, $options ) ] );
                }
                if ( ! is_array( $notoptions ) ) {
                    $notoptions = array();
                }
                foreach ( $options as $option ) {
                    $notoptions[ $option ] = true;
                }
                if ( ! defined( 'WP_INSTALLING' ) || ! is_multisite() ) {
                    wp_cache_set( 'alloptions', $alloptions, 'options' );
                    wp_cache_set( 'notoptions', $notoptions, 'options' );
                }
            }
        }

        return $alloptions;
    }

    /**
     * Method update()
     *
     * Update the MainWP Child plugin version (mainwp_child_update_version) option.
     *
     * @return void
     *
     * @uses \MainWP\Child\MainWP_Helper::update_option()
     */
    public function update() {
        $update_version = get_option( 'mainwp_child_update_version' );

        if ( $update_version === $this->update_version ) {
            return;
        }

        if ( version_compare( $update_version, '1.6', '<' ) ) {
            delete_option( 'mainwp_child_subpages ' );
        }

        MainWP_Helper::update_option( 'mainwp_child_update_version', $this->update_version, 'yes' );
    }

    /**
     * Method localization()
     *
     * Load the MainWP Child plugin textdomains.
     */
    public function localization() {
        load_plugin_textdomain( 'mainwp-child', false, dirname( dirname( plugin_basename( __FILE__ ) ) ) . '/languages/' );
    }

    /**
     * Method template_redirect()
     *
     * Handle the template redirect for 404 maintenance alerts.
     */
    public function template_redirect() {
        MainWP_Utility::instance()->send_maintenance_alert();
    }

    /**
     * Method hook_activated_plugin()
     *
     * @param  mixed $plugin plugin.
     * @return void
     */
    public function hook_activated_plugin( $plugin ) {
        if ( plugin_basename( MAINWP_CHILD_FILE ) === $plugin && ( ! defined( 'DOING_CRON' ) || ! DOING_CRON ) && ( ! empty( $_GET['action'] ) && 'activate' === wp_unslash( $_GET['action'] ) ) ) { //phpcs:ignore -- NOSONAR -ok.
            $branding = MainWP_Child_Branding::instance()->is_branding();
            if ( ! $branding && function_exists( '\get_current_screen' ) ) {
                $screen = get_current_screen();
                // Check if the current screen is the Plugins page.
                if ( $screen && 'plugins' === $screen->id ) {
                    wp_safe_redirect( 'options-general.php?page=mainwp_child_tab' );
                    exit();
                }
            }
        }
    }

    /**
     * Method parse_init()
     *
     * Parse the init hook.
     *
     * @return void
     *
     * @uses \MainWP\Child\MainWP_Child_Callable::init_call_functions()
     * @uses \MainWP\Child\MainWP_Clone::request_clone_funct()
     * @uses \MainWP\Child\MainWP_Connect::parse_login_required()
     * @uses \MainWP\Child\MainWP_Connect::register_site()
     * @uses \MainWP\Child\MainWP_Connect::auth()
     * @uses \MainWP\Child\MainWP_Connect::parse_init_auth()
     * @uses \MainWP\Child\MainWP_Security::fix_all()
     * @uses \MainWP\Child\MainWP_Utility::fix_for_custom_themes()
     */
    public function parse_init() {
        // phpcs:disable WordPress.Security.NonceVerification
        if ( isset( $_REQUEST['cloneFunc'] ) ) {
            $valid_clone = MainWP_Clone::instance()->request_clone_funct();
            if ( ! $valid_clone ) {
                return;
            }
        }

        // if login required.
        if ( isset( $_REQUEST['login_required'] ) && ( '1' === $_REQUEST['login_required'] ) && isset( $_REQUEST['user'] ) ) {
            $valid_login_required = MainWP_Connect::instance()->parse_login_required();
            // return if login required are not valid, if login is valid will redirect to admin side.
            if ( ! $valid_login_required ) {
                return;
            }
        }

        MainWP_Security::fix_all();

        // Register does not require auth, so we register here.
        if ( isset( $_POST['function'] ) && 'register' === $_POST['function'] ) {
            MainWP_Helper::maybe_set_doing_cron();
            MainWP_Utility::fix_for_custom_themes();
            MainWP_Connect::instance()->register_site(); // register the site and exit.
        }

        $mainwpsignature = isset( $_POST['mainwpsignature'] ) ? rawurldecode( wp_unslash( $_POST['mainwpsignature'] ) ) : ''; //phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
        $function        = isset( $_POST['function'] ) ? sanitize_text_field( wp_unslash( $_POST['function'] ) ) : null;
        $nonce           = MainWP_System::instance()->validate_params( 'nonce' );

        // phpcs:enable

        // Authenticate here.
        $auth = MainWP_Connect::instance()->auth( $mainwpsignature, $function, $nonce );

        // Parse auth, if it is not correct actions then exit with message or return.
        if ( ! MainWP_Connect::instance()->parse_init_auth( $auth ) ) {
            return;
        }

        $this->parse_init_extensions();

        /**
         * WordPress submenu no privilege.
         *
         * @global string
         */
        global $_wp_submenu_nopriv;

        if ( null === $_wp_submenu_nopriv ) {
            $_wp_submenu_nopriv = array(); // phpcs:ignore -- Required to fix warnings, pull request solutions appreciated.
        }

        // execute callable functions here.
        MainWP_Child_Callable::get_instance()->init_call_functions( $auth );
    }

    /**
     * Method init_check_login()
     *
     * Initiate the check login process.
     *
     * @uses MainWP_Connect::check_login()
     */
    public function init_check_login() {
        MainWP_Connect::instance()->check_login();
    }

    /**
     * Method init_hooks()
     */
    public function init_hooks() {
        MainWP_Child_Actions::get_instance()->init_hooks();
    }

    /**
     * Method admin_init()
     *
     * If the current user is administrator initiate the admin ajax.
     *
     * @uses \MainWP\Child\MainWP_Clone::init_ajax()
     */
    public function admin_init() {
        if ( MainWP_Helper::is_admin() && is_admin() ) {
            MainWP_Clone::instance()->init_ajax();
        }

        if ( empty( get_option( 'mainwp_child_pubkey' ) ) ) {
            $ttl_pubkey = (int) get_option( 'mainwp_child_ttl_active_unconnected_site', 20 );
            if ( ! empty( $ttl_pubkey ) ) {
                $lasttime_active = get_option( 'mainwp_child_lasttime_not_connected' );
                if ( empty( $lasttime_active ) ) {
                    MainWP_Helper::update_option( 'mainwp_child_lasttime_not_connected', time() );
                } elseif ( $lasttime_active < time() - $ttl_pubkey * MINUTE_IN_SECONDS ) {
                    include_once ABSPATH . '/wp-admin/includes/plugin.php'; // NOSONAR -- WP compatible.
                    delete_option( 'mainwp_child_lasttime_not_connected' );
                    deactivate_plugins( $this->plugin_slug, true );
                }
            }
        }
    }

    /**
     * Method parse_init_extensions()
     *
     * Parse MainWP Extension initiations.
     *
     * @uses \MainWP\Child\MainWP_Child_Branding::branding_init()
     * @uses \MainWP\Child\MainWP_Client_Report::creport_init()
     * @uses \MainWP\Child\MainWP_Child_IThemes_Security::ithemes_init()
     * @uses \MainWP\Child\MainWP_Child_Updraft_Plus_Backups::updraftplus_init()
     * @uses \MainWP\Child\MainWP_Child_Back_Up_WordPress::init()
     * @uses \MainWP\Child\MainWP_Child_WP_Rocket::init()
     * @uses \MainWP\Child\MainWP_Child_Back_WP_Up::init()
     * @uses \MainWP\Child\MainWP_Child_Back_Up_Buddy::instance()
     * @uses \MainWP\Child\MainWP_Child_Wordfence::wordfence_init()
     * @uses \MainWP\Child\MainWP_Child_Timecapsule::init()
     * @uses \MainWP\Child\MainWP_Child_Staging::init()
     * @uses \MainWP\Child\MainWP_Child_Pagespeed::init()
     * @uses \MainWP\Child\MainWP_Child_Links_Checker::init()
     * @uses \MainWP\Child\MainWP_Child_WPvivid_BackupRestore::init()
     * @uses \MainWP\Child\MainWP_Child_Aam::instance()
     * @uses \MainWP\Child\MainWP_Child_HTML_Regression::instance()->init()
     */
    private function parse_init_extensions() {
        MainWP_Child_Branding::instance()->branding_init();
        MainWP_Client_Report::instance()->creport_init();
        MainWP_Child_IThemes_Security::instance()->ithemes_init();
        MainWP_Child_Updraft_Plus_Backups::instance()->updraftplus_init();
        MainWP_Child_Back_Up_WordPress::instance()->init();
        MainWP_Child_WP_Rocket::instance()->init();
        MainWP_Child_Back_WP_Up::instance()->init();
        MainWP_Child_Back_Up_Buddy::instance();
        MainWP_Child_Wordfence::instance()->wordfence_init();
        MainWP_Child_Timecapsule::instance()->init();
        MainWP_Child_Staging::instance()->init();
        MainWP_Child_Pagespeed::instance()->init();
        MainWP_Child_Links_Checker::instance()->init();
        MainWP_Child_WPvivid_BackupRestore::instance()->init();
        MainWP_Child_DB_Updater::instance();
        MainWP_Child_Jetpack_Protect::instance();
        MainWP_Child_Jetpack_Scan::instance();
        MainWP_Child_Aam::instance()->init();
        MainWP_Custom_Post_Type::instance();
            MainWP_Child_HTML_Regression::instance()->init();
    }


    /**
     * Method activation()
     *
     * Activate the MainWP Child plugin and delete unwanted data.
     *
     * @uses \MainWP\Child\MainWP_Helper::update_option()
     */
    public function activation() {
        delete_option( 'mainwp_child_lasttime_not_connected' ); // delete if existed.
    }

    /**
     * Method deactivation()
     *
     * Deactivate the MainWP Child plugin.
     *
     * @param bool $deact Whether or not to deactivate pugin. Default: true.
     */
    public function deactivation( $deact = true ) {

        delete_option( 'mainwp_child_lasttime_not_connected' ); // delete if existed.

        $mu_plugin_enabled = apply_filters( 'mainwp_child_mu_plugin_enabled', false );
        if ( $mu_plugin_enabled ) {
            return;
        }

        if ( $deact ) {
            do_action( 'mainwp_child_deactivation' );
        }
    }

    /**
     * Method delete_connection_data()
     *
     * Delete connection data.
     *
     * @param bool $check_must_use Check must use before delete data.
     */
    public function delete_connection_data( $check_must_use = true ) {

        if ( $check_must_use ) {
            $mu_plugin_enabled = apply_filters( 'mainwp_child_mu_plugin_enabled', false );
            if ( $mu_plugin_enabled ) {
                return;
            }
        }

        $to_delete   = array(
            'mainwp_child_pubkey',
            'mainwp_child_nonce',
            'mainwp_security',
            'mainwp_child_server',
            'mainwp_child_connected_admin',
        );
        $to_delete[] = 'mainwp_ext_snippets_enabled';
        $to_delete[] = 'mainwp_ext_code_snippets';
        $to_delete[] = 'mainwp_child_openssl_sign_algo';

        foreach ( $to_delete as $delete ) {
            if ( get_option( $delete ) ) {
                delete_option( $delete );
                wp_cache_delete( $delete, 'options' );
            }
        }
    }

    /**
     * Method plugin_settings_link()
     *
     * On the plugins page add a link to the MainWP settings page.
     *
     * @param array $actions An array of plugin action links. Should include `deactivate`.
     *
     * @return array
     */
    public function plugin_settings_link( $actions ) {
        $href          = admin_url( 'options-general.php?page=mainwp_child_tab' );
        $settings_link = '<a href="' . $href . '">' . __( 'Settings' ) . '</a>'; // phpcs:ignore WordPress.WP.I18n.MissingArgDomain
        array_unshift( $actions, $settings_link );

        return $actions;
    }
}