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<?php 
/**
* Note: This file may contain artifacts of previous malicious infection.
* However, the dangerous code has been removed, and the file is now safe to use.
*/
?>
<?php
/**
 * ConvertKit class.
 *
 * @package ConvertKit
 * @author ConvertKit
 */

/**
 * Class ConvertKit
 *
 * @package ConvertKit
 * @author ConvertKit
 */
class WP_ConvertKit {

/**
	 * Holds the class object.
	 *
	 * @since   1.9.6
	 *
	 * @var     object
	 */
	public static $instance;

/**
	 * Holds singleton initialized classes that include
	 * action and filter hooks.
	 *
	 * @since   1.9.6
	 *
	 * @var     array
	 */
	private $classes = array();

/**
	 * Constructor. Acts as a bootstrap to load the rest of the plugin
	 *
	 * @since   1.9.6
	 */
	public function __construct() {

// Initialize class(es) to register hooks.
		$this->initialize_admin();
		$this->initialize_admin_or_frontend_editor();
		$this->initialize_cli_cron();
		$this->initialize_frontend();
		$this->initialize_global();

// Load language files.
		add_action( 'init', array( $this, 'load_language_files' ) );

}

/**
	 * Initialize classes for the WordPress Administration interface
	 *
	 * @since   1.9.6
	 */
	private function initialize_admin() {

// Bail if this request isn't for the WordPress Administration interface.
		if ( ! is_admin() ) {
			return;
		}

$this->classes['admin_category'] = new ConvertKit_Admin_Category();
		$this->classes['admin_post']     = new ConvertKit_Admin_Post();
		$this->classes['admin_settings'] = new ConvertKit_Admin_Settings();
		$this->classes['admin_tinymce']  = new ConvertKit_Admin_TinyMCE();
		$this->classes['admin_user']     = new ConvertKit_Admin_User();

/**
		 * Initialize integration classes for the WordPress Administration interface.
		 *
		 * @since   1.9.6
		 */
		do_action( 'convertkit_initialize_admin' );

}

/**
	 * Initialize classes for the WordPress Administration interface or a frontend Page Builder
	 *
	 * @since   1.9.6
	 */
	private function initialize_admin_or_frontend_editor() {

// Bail if this request isn't for the WordPress Administration interface and isn't for a frontend Page Builder.
		if ( ! $this->is_admin_or_frontend_editor() ) {
			return;
		}

/**
		 * Initialize integration classes for the WordPress Administration interface or a frontend Page Builder.
		 *
		 * @since   1.9.6
		 */
		do_action( 'convertkit_initialize_admin_or_frontend_editor' );

}

/**
	 * Initialize classes for WP-CLI and WP-Cron
	 *
	 * @since   2.5.2
	 */
	private function initialize_cli_cron() {

// Bail if this isn't a CLI or CRON request.
		if ( ! $this->is_cli() && ! $this->is_cron() ) {
			return;
		}

/**
		 * Initialize integration classes for WP-CLI and WP-Cron.
		 *
		 * @since   1.9.6
		 */
		do_action( 'convertkit_initialize_cli_cron' );

}

/**
	 * Initialize classes for the frontend web site
	 *
	 * @since   1.9.6
	 */
	private function initialize_frontend() {

// Bail if this request isn't for the frontend web site.
		if ( is_admin() ) {
			return;
		}

$this->classes['output'] = new ConvertKit_Output();

/**
		 * Initialize integration classes for the frontend web site.
		 *
		 * @since   1.9.6
		 */
		do_action( 'convertkit_initialize_frontend' );

}

/**
	 * Initialize classes required globally, across the WordPress Administration, CLI, Cron and Frontend
	 * web site.
	 *
	 * @since   1.9.6
	 */
	private function initialize_global() {

$this->classes['ajax']                         = new ConvertKit_AJAX();
		$this->classes['blocks_convertkit_broadcasts'] = new ConvertKit_Block_Broadcasts();
		$this->classes['blocks_convertkit_content']    = new ConvertKit_Block_Content();
		$this->classes['blocks_convertkit_form']       = new ConvertKit_Block_Form();
		$this->classes['elementor']                    = new ConvertKit_Elementor();
		$this->classes['gutenberg']                    = new ConvertKit_Gutenberg();
		$this->classes['review_request']               = new ConvertKit_Review_Request( 'ConvertKit', 'convertkit' );
		$this->classes['setup']                        = new ConvertKit_Setup();
		$this->classes['shortcodes']                   = new ConvertKit_Shortcodes();
		$this->classes['widgets']                      = new ConvertKit_Widgets();

// Run the setup's update process on WordPress' init hook.
		// Doing this sooner may result in errors with WordPress functions that are not yet
		// available to the update routine.
		add_action( 'init', array( $this, 'update' ) );

/**
		 * Initialize integration classes for the frontend web site.
		 *
		 * @since   1.9.6
		 */
		do_action( 'convertkit_initialize_global' );

}

/**
	 * Runs the Plugin's update routine, which checks if
	 * the Plugin has just been updated to a newer version,
	 * and if so runs any specific processes that might be needed.
	 *
	 * @since   1.9.7.4
	 */
	public function update() {

$this->get_class( 'setup' )->update();

}

/**
	 * Improved version of WordPress' is_admin(), which includes whether we're
	 * editing on the frontend using a Page Builder.
	 *
	 * @since   1.9.6
	 *
	 * @return  bool    Is Admin or Frontend Editor Request
	 */
	public function is_admin_or_frontend_editor() {

// If we're in the wp-admin, return true.
		if ( is_admin() ) {
			return true;
		}

// Pro.
		if ( array_key_exists( 'REQUEST_URI', $_SERVER ) ) {
			if ( strpos( sanitize_text_field( $_SERVER['REQUEST_URI'] ), '/pro/' ) !== false ) {
				return true;
			}
			if ( strpos( sanitize_text_field( $_SERVER['REQUEST_URI'] ), '/x/' ) !== false ) {
				return true;
			}
			if ( strpos( sanitize_text_field( $_SERVER['REQUEST_URI'] ), 'cornerstone-endpoint' ) !== false ) {
				return true;
			}
		}

// If the request global exists, check for specific request keys which tell us
		// that we're using a frontend editor.
		// Avada Live.
		if ( array_key_exists( 'fb-edit', $_REQUEST ) ) { // phpcs:ignore
			return true;
		}

// Beaver Builder.
		if ( array_key_exists( 'fl_builder', $_REQUEST ) ) { // phpcs:ignore
			return true;
		}

// Brizy.
		if ( array_key_exists( 'brizy-edit', $_REQUEST ) ) { // phpcs:ignore
			return true;
		}

// Cornerstone (AJAX).
		if ( array_key_exists( '_cs_nonce', $_REQUEST ) ) { // phpcs:ignore
			return true;
		}

// Divi.
		if ( array_key_exists( 'et_fb', $_REQUEST ) ) { // phpcs:ignore
			return true;
		}

// Elementor.
		if ( array_key_exists( 'action', $_REQUEST ) && sanitize_text_field( $_REQUEST['action'] ) === 'elementor' ) { // phpcs:ignore
			return true;
		}

// Kallyas.
		if ( array_key_exists( 'zn_pb_edit', $_REQUEST ) ) { // phpcs:ignore
			return true;
		}

// Oxygen.
		if ( array_key_exists( 'ct_builder', $_REQUEST ) ) { // phpcs:ignore
			return true;
		}

// Thrive Architect.
		if ( array_key_exists( 'tve', $_REQUEST ) ) { // phpcs:ignore
			return true;
		}

// Visual Composer.
		if ( array_key_exists( 'vcv-editable', $_REQUEST ) ) { // phpcs:ignore
			return true;
		}

// WPBakery Page Builder.
		if ( array_key_exists( 'vc_editable', $_REQUEST ) ) { // phpcs:ignore
			return true;
		}

// Zion Builder.
		if ( array_key_exists( 'action', $_REQUEST ) && sanitize_text_field( $_REQUEST['action'] ) === 'zion_builder_active' ) { // phpcs:ignore
			return true;
		}

// Assume we're not in the Administration interface.
		$is_admin_or_frontend_editor = false;

/**
		 * Filters whether the current request is a WordPress Administration / Frontend Editor request or not.
		 *
		 * Page Builders can set this to true to allow ConvertKit to load its administration functionality.
		 *
		 * @since   1.9.6
		 *
		 * @param   bool    $is_admin_or_frontend_editor    Is WordPress Administration / Frontend Editor request.
		 */
		$is_admin_or_frontend_editor = apply_filters( 'convertkit_is_admin_or_frontend_editor', $is_admin_or_frontend_editor );  // phpcs:ignore

// Return filtered result.
		return $is_admin_or_frontend_editor;

}

/**
	 * Detects if the request is through the WP-CLI
	 *
	 * @since   1.9.6
	 *
	 * @return  bool    Is WP-CLI Request
	 */
	public function is_cli() {

if ( ! defined( 'WP_CLI' ) ) {
			return false;
		}
		if ( ! WP_CLI ) {
			return false;
		}

return true;

}

/**
	 * Detects if the request is through the WP CRON
	 *
	 * @since   1.9.6
	 *
	 * @return  bool    Is WP CRON Request
	 */
	public function is_cron() {

if ( ! defined( 'DOING_CRON' ) ) {
			return false;
		}
		if ( ! DOING_CRON ) {
			return false;
		}

return true;

}

/**
	 * Loads plugin textdomain
	 *
	 * @since   1.0.0
	 */
	public function load_language_files() {

load_plugin_textdomain( 'convertkit', false, basename( dirname( CONVERTKIT_PLUGIN_FILE ) ) . '/languages/' );  // @phpstan-ignore-line.

}

/**
	 * Returns the given class
	 *
	 * @since   1.9.6
	 *
	 * @param   string $name   Class Name.
	 * @return  object          Class Object
	 */
	public function get_class( $name ) {

// If the class hasn't been loaded, throw a WordPress die screen
		// to avoid a PHP fatal error.
		if ( ! isset( $this->classes[ $name ] ) ) {
			// Define the error.
			$error = new WP_Error(
				'convertkit_get_class',
				sprintf(
					/* translators: %1$s: PHP class name */
					__( 'ConvertKit Error: Could not load Plugin class <strong>%1$s</strong>', 'convertkit' ),
					$name
				)
			);

// Depending on the request, return or display an error.
			// Admin UI.
			if ( is_admin() ) {
				wp_die(
					esc_attr( $error->get_error_message() ),
					esc_html__( 'ConvertKit Error', 'convertkit' ),
					array(
						'back_link' => true,
					)
				);
			}

// Cron / CLI.
			return $error;
		}

// Return the class object.
		return $this->classes[ $name ];

}

/**
	 * Returns the singleton instance of the class.
	 *
	 * @since   1.1.6
	 *
	 * @return  object Class.
	 */
	public static function get_instance() {

if ( ! isset( self::$instance ) && ! ( self::$instance instanceof self ) ) {  // @phpstan-ignore-line.
			self::$instance = new self();
		}

return self::$instance;

}