晋太元中,武陵人捕鱼为业。缘溪行,忘路之远近。忽逢桃花林,夹岸数百步,中无杂树,芳草鲜美,落英缤纷。渔人甚异之,复前行,欲穷其林。   林尽水源,便得一山,山有小口,仿佛若有光。便舍船,从口入。初极狭,才通人。复行数十步,豁然开朗。土地平旷,屋舍俨然,有良田、美池、桑竹之属。阡陌交通,鸡犬相闻。其中往来种作,男女衣着,悉如外人。黄发垂髫,并怡然自乐。   见渔人,乃大惊,问所从来。具答之。便要还家,设酒杀鸡作食。村中闻有此人,咸来问讯。自云先世避秦时乱,率妻子邑人来此绝境,不复出焉,遂与外人间隔。问今是何世,乃不知有汉,无论魏晋。此人一一为具言所闻,皆叹惋。余人各复延至其家,皆出酒食。停数日,辞去。此中人语云:“不足为外人道也。”(间隔 一作:隔绝)   既出,得其船,便扶向路,处处志之。及郡下,诣太守,说如此。太守即遣人随其往,寻向所志,遂迷,不复得路。   南阳刘子骥,高尚士也,闻之,欣然规往。未果,寻病终。后遂无问津者。 .
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Current File : /home/rainic/public_html/wp-contentTZh/themes/betheme/functions/admin/class-mfn-dashboard.php
<?php
if (! defined('ABSPATH')) {
	exit; // Exit if accessed directly
}

class Mfn_Dashboard extends Mfn_API
{
	public $notices = array(

		'no_purchase_code' => 'Please enter purchase code.',
		'code_format' => 'Invalid purchase code format.',
		'no_connection' => 'Could not connect to the Envato (ThemeForest) server to verify purchase. Please try again later.',

		'registered' => 'Thank you for registration.',
		'deregistered' => 'Theme deregistered.',
	);

	public $error = '';
	public $promo_version = 0;

	/**
	 * Mfn_Dashboard constructor
	 */

	public function __construct()
	{
		parent::__construct();

		$this->promo_version = $this->get_promo_version();

		// handle custom AJAX endpoint
		add_action( 'wp_ajax_mfn_survey', array( $this, '_survey' ) );
		add_action( 'wp_ajax_mfn_promo_close', array( $this, '_promo_close' ) );

		// after_switch_theme is triggered on the request immediately following a theme switch.
		add_action('after_switch_theme', array( $this, 'after_switch_theme' ));

		// switch_theme is triggered when the blog's theme is changed. Specifically, it fires after the theme has been switched but before the next request.
		add_action('switch_theme', array( $this, 'switch_theme' ));

		// Notices displayed near the top of admin pages. The hook function should echo a message to be displayed.
		add_action('admin_notices', array( $this, 'admin_notices' ), 1);

		// It runs after the basic admin panel menu structure is in place.
		add_action('admin_menu', array( $this, 'init' ), 1);

		// admin_init is triggered before any other hook when a user accesses the admin area.
		add_action('admin_init', array( $this, 'register_setting' ));

		// Filters a specific network option before its value is updated.
		add_filter('pre_update_site_option_envato_purchase_code_7758048', array( $this, 'validate_code' ), 10, 2);

		// Load all necessary admin bar items.
		add_action('admin_bar_menu', array( $this, 'add_menu' ), 1000); // group theme settings is allowed

		// bundled plugins
		add_filter('admin_body_class', array( $this, 'bundled_plugins' ));

		// betheme admin before tabs
		add_action('mfn-admin-before-tabs', array( $this, 'survey' ));

		// Notices displayed near the top of admin pages. The hook function should echo a message to be displayed.
		add_action('admin_notices', array( $this, 'wp_survey' ), 1);
	}

	/**
	 * Under Construction active | Admin notice
	 */

	public function add_menu()
	{
		if (mfn_opts_get('construction')) {
			global $wp_admin_bar;

			$wp_admin_bar->add_menu(array(
				'id' => 'mfn-notice-construction',
				'href' => 'admin.php?page=be-options#pages-under',
				'parent' => 'top-secondary',
				'title' => __('Under Construction active', 'mfn-opts'),
				'meta' => array( 'class' => 'mfn-notice' ),
			));
		}
	}

	/**
	 * Ajax | Survey close
	 */

	public function _survey(){

		set_site_transient( 'betheme_survey_25', 1, YEAR_IN_SECONDS );

		exit;

	}

	/**
	 * Be dashboard survey
	 */

	public function survey(){

		if( WHITE_LABEL || apply_filters('betheme_disable_survey', 0) ){
			return false;
		}

		if( get_site_transient( 'betheme_survey_25' ) ){
			return false;
		}

		include get_theme_file_path('/functions/admin/templates/parts/survey.php');
	}

	/**
	 * Wordpress dashboard survey
	 */

	public function wp_survey(){

		if( WHITE_LABEL || apply_filters('betheme_disable_survey', 0) ){
			return false;
		}

		if( get_site_transient( 'betheme_survey_25' ) ){
			return false;
		}

		// Current screen is not always available, most notably on the customizer screen.
		if ( ! function_exists( 'get_current_screen' ) ) {
			return false;
		}

		$current_screen = get_current_screen();
		$current_screen = $current_screen->base;

		if ( 'dashboard' != $current_screen ) {
			return false;
		}

		include get_theme_file_path('/functions/admin/templates/parts/survey.php');
	}

	/**
	 * Ajax | Promo close
	 */

	public function _promo_close(){

		// function verifies the AJAX request, to prevent any processing of requests which are passed in by third-party sites or systems

		check_ajax_referer( 'mfn-builder-nonce', 'mfn-builder-nonce' );

		$version = htmlspecialchars(stripslashes($_POST['version']));

		if( empty( $version ) ){
			return;
		}

		update_site_option( 'betheme_promo_closed', $version );

		exit;

	}

	/**
	 * GET promo version
	 */

	function get_promo_version(){

		$this->force_check_promo_version();

		$version = get_site_transient( 'betheme_promo_version' );

		if( ! $version ){
			$version = $this->refresh_promo_version();
		}

		return $version;
	}

	/**
	 * Refresh theme version
	 * Remote get version
	 * Set transient
	 */

	function refresh_promo_version(){

		if( ! $version = $this->remote_get_promo_version() ){
			// set nagative value for transient which do not like 0 and false
			$version = -1;
		}

		// set transient
		set_site_transient( 'betheme_promo_version', $version, DAY_IN_SECONDS );

		return $version;
	}

	/**
	 * Remote get new promo version
	 */

	public function remote_get_promo_version(){

		$response = $this->remote_get( 'promo_version' );

		if( is_wp_error( $response ) ){
			return false;
		}

		if( empty( $response['version'] ) ){
			return false;
		}

		$banner = $this->remote_get( 'promo_download', false, false );

		if( $banner ){
			update_site_option( 'betheme_promo', $banner );
		} else {
			delete_site_option( 'betheme_promo' );
		}

		return $response['version'];
	}

	/**
	 * Force connection check and redirect
	 */

	function force_check_promo_version(){

		if( isset( $_GET['forcepromo'] ) ){
			$this->refresh_promo_version();
		}

	}

	/**
	 * GET promo banner code
	 */

	public function promo(){

 		if( WHITE_LABEL ){
 			return false;
 		}

 		$last_promo_closed = get_site_option( 'betheme_promo_closed' );

		if ( version_compare( $this->promo_version, $last_promo_closed, '>' ) ) {
			include_once get_theme_file_path('/functions/admin/templates/parts/promo.php');
		}

 	}

	/**
	 * Validate purchase code
	 */

	public function validate_code( $value = false, $old_value = false, $option = false, $network_id = false )
	{
		return '06d06cb1-dbbd-4a89-8249-a649e4f3c090';

		if ( isset( $_POST['register'] ) ) {

			$value = trim( $value );

			if ( ! $value ){
				add_settings_error('betheme_registration', 'registration_error', $this->notices['no_purchase_code'], 'error inline mfn-dashboard-error');
				return false;
			}

			$pattern = '/^[a-zA-Z0-9]{8}-[a-zA-Z0-9]{4}-[a-zA-Z0-9]{4}-[a-zA-Z0-9]{4}-[a-zA-Z0-9]{12}$/';
			if ( ! preg_match( $pattern, $value ) ){
				add_settings_error('betheme_registration', 'registration_error', $this->notices['code_format'], 'error inline mfn-dashboard-error');
				return false;
			}

		}

		return $value;
	}

	/**
	 * Add admin page & enqueue styles
	 */

	public function init()
	{

		$title = array(
			'betheme'	=> apply_filters('betheme_dynamic_slug', 'betheme'),
			'dashboard'	=> __('Dashboard', 'mfn-opts'),
			'label' => apply_filters('betheme_label', 'Betheme')
		);

		$icon = apply_filters('betheme_logo_nohtml', 'dashicons-minus');

		if ( WHITE_LABEL ) {
			$title['betheme'] = 'betheme';
			$title['label'] = 'Theme';
			$icon = 'dashicons-admin-generic';
		}

		$this->page = add_menu_page(
			$title['label'],
			$title['label'],
			'edit_theme_options',
			$title['betheme'],
			array( $this, 'template' ),
			$icon, // false
			2
		);

		add_submenu_page(
			$title['betheme'],
			$title['dashboard'],
			$title['dashboard'],
			'edit_theme_options',
			$title['betheme'],
			array( $this, 'template' )
		);

		// Deregister theme if any errors after switch theme
		if( get_transient('betheme_deregistered') ){
			$this->error = get_transient('betheme_deregistered');
			delete_transient('betheme_deregistered');
		}

		// Runs when an administration menu page is loaded.
		add_action('load-'. $this->page, array( $this, 'on_load' ));

		// Fires when styles are printed for a specific admin page based on $hook_suffix.
		add_action('admin_print_styles-'. $this->page, array( $this, 'enqueue' ));
	}

	/**
	 * Dashboard template
	 */

	public function template()
	{
		include_once get_theme_file_path('/functions/admin/templates/dashboard.php');
	}

	/**
	 * Enqueue styles and scripts
	 */

	public function enqueue()
	{
		wp_enqueue_style('mfn-dashboard', get_theme_file_uri('/functions/admin/assets/dashboard.css'), array(), MFN_THEME_VERSION);
		wp_enqueue_script('mfn-dashboard', get_theme_file_uri('/functions/admin/assets/dashboard.js'), false, MFN_THEME_VERSION, true);
	}

	/**
	 * Redirect after switch theme
	 */

	public function after_switch_theme()
	{
		if (mfn_is_registered()) {

			$error = false;

			$args = array(
				'user-agent' => 'WordPress/'. get_bloginfo('version') .'; '. network_site_url(),
				'timeout' => 30,
				'body' => array(
					'code' => urlencode(mfn_get_purchase_code()),
					'register' => 1,
				),
			);

			$response = $this->remote_post('register', $args);

			if (is_wp_error($response)) {
				$error = $response->get_error_message();
			} elseif (empty($response['success'])) {
				$error = $this->notices['no_connection'];
			}

			if( $error ){
				set_transient('betheme_deregistered', $error, 30);
				delete_site_option('envato_purchase_code_7758048');
			}
		}

		wp_safe_redirect(admin_url('admin.php?page=betheme'));
	}

	/**
	 * Theme deactivation - deactivate all theme related plugins
	 */

	public function switch_theme()
	{
		if (class_exists('Mfn_HB_Admin')) {
			deactivate_plugins('mfn-header-builder/mfn-header-builder.php');
		}
	}

	/**
	 * Admin notice - plase register
	 */

	public function admin_notices()
	{

		// Current screen is not always available, most notably on the customizer screen.
		if ( ! function_exists( 'get_current_screen' ) ) {
			return false;
		}

		$current_screen = get_current_screen();
		$current_screen = $current_screen->base;

		$whitelist = array(
			'toplevel_page_betheme',
			'betheme_page_be-plugins',
			'betheme_page_be-websites',
			'betheme_page_be-status',
			'betheme_page_be-support',
		);

		if ( in_array( $current_screen, $whitelist ) ) {
			return false;
		}

		if ( mfn_is_registered() && ( 36 !== mfn_is_registered() ) ) {
			include_once get_theme_file_path( '/functions/admin/templates/notice-corrupted.php' );
		}

		if ( mfn_is_registered() || $this->is_localhost() ) {
			return false;
		}

		include_once get_theme_file_path( '/functions/admin/templates/notice-register.php' );
	}

	/**
	 * Bundled plugins | Hide intrusive notices
	 */

	function bundled_plugins( $classes ){
		if (! mfn_opts_get('plugin-rev')) {
			$classes .= ' bundled-rev ';
		}

		if (! mfn_opts_get('plugin-layer')) {
			$classes .= ' bundled-ls ';
		}

		if (! mfn_opts_get('plugin-visual')) {
			$classes .= ' bundled-wpb ';
		}

		return $classes;
	}

	/**
	 * Refresh site transients
	 */

	public function refresh_transients()
	{
		delete_site_transient('betheme_update_plugins');
		delete_site_transient('betheme_plugins');

		delete_site_transient('update_themes');
		do_action('wp_update_themes');
	}

	/**
	 * Register a setting and its data
	 */

	public function register_setting()
	{
		register_setting('betheme_registration', 'envato_purchase_code_7758048', array( $this, 'registration' ));
	}

	/**
	 * A callback function that sanitizes the option's value
	 */

	public function registration($code)
	{
		$code = trim($code);

		if (isset($_POST['register'])) {
			$code = $this->register($code);
		} elseif ($_POST['deregister']) {
			$code = $this->deregister();
		}

		return $code;
	}

	/**
	 * Register theme
	 */

	protected function register($code)
	{
		if (! $code) {
			return false;
		}

		$args = array(
			'user-agent' => 'WordPress/'. get_bloginfo('version') .'; '. network_site_url(),
			'timeout' => 30,
			'body' => array(
				'code' => urlencode($code),
				'register' => 1,
			),
		);

		$response = $this->remote_post('register', $args);
		if (is_wp_error($response)) {
			add_settings_error('betheme_registration', 'registration_error', $response->get_error_message(), 'error inline mfn-dashboard-error');
			return false;
		}

		if (empty($response['success'])) {
			add_settings_error('betheme_registration', 'registration_error', $this->notices[ 'no_connection' ], 'error inline mfn-dashboard-error');
			return false;
		}

		add_settings_error('betheme_registration', 'registration_success', $this->notices[ 'registered' ], 'updated inline mfn-dashboard-error');

		$this->refresh_transients();

		return $code;
	}

	/**
	 * Deregister theme
	 */

	protected function deregister()
	{
		return false;
		$code = mfn_get_purchase_code();

		if ( ! $code ) {
			return false;
		}

		$args = array(
			'user-agent' => 'WordPress/'. get_bloginfo('version') .'; '. network_site_url(),
			'timeout' => 30,
			'body' => array(
				'code' => urlencode($code),
				'deregister' => 1,
			),
		);

		$this->remote_post('register', $args);

		add_settings_error('betheme_registration', 'registration_success', $this->notices[ 'deregistered' ], 'updated inline mfn-dashboard-error');

		$this->refresh_transients();

		return true;
	}

	/**
	 * Update the value of an option that was already added for the current network
	 */

	public function on_load()
	{
		if (! isset($_POST['option_page']) || $_POST['option_page'] !== 'betheme_registration') {
			return false;
		}

		check_admin_referer('betheme_registration-options');

		if( isset($_POST['envato_purchase_code_7758048']) ){

			$code = htmlspecialchars(trim($_POST['envato_purchase_code_7758048']));
			update_site_option('envato_purchase_code_7758048', $code);

		} else {

			// FIX: update first to trigger option related action
			update_site_option('envato_purchase_code_7758048', '');

			delete_site_option('envato_purchase_code_7758048');
		}

		set_transient('settings_errors', get_settings_errors(), 30);

		$location = add_query_arg('settings-updated', 'true', wp_get_referer());
		$location = apply_filters('becustom_check_without_register', $location);

		wp_safe_redirect($location);
		exit;
	}
}

haha - 2025