<?php

/**

 * WordPress Ajax Process Execution

 *

 * @package WordPress

 * @subpackage Administration

 *

 * @link https://codex.wordpress.org/AJAX_in_Plugins

 */

/**

 * Executing Ajax process.

 *

 * @since 2.1.0

 */

define( 'DOING_AJAX', true );

if ( ! defined( 'WP_ADMIN' ) ) {

	define( 'WP_ADMIN', true );

}

/** Load WordPress Bootstrap */

require_once( dirname( dirname( __FILE__ ) ) . '/wp-load.php' );

/** Allow for cross-domain requests (from the front end). */

send_origin_headers();

// Require an action parameter

if ( empty( $_REQUEST['action'] ) ) {

	wp_die( '0', 400 );

}

/** Load WordPress Administration APIs */

require_once( ABSPATH . 'wp-admin/includes/admin.php' );

/** Load Ajax Handlers for WordPress Core */

require_once( ABSPATH . 'wp-admin/includes/ajax-actions.php' );

@header( 'Content-Type: text/html; charset=' . get_option( 'blog_charset' ) );

@header( 'X-Robots-Tag: noindex' );

send_nosniff_header();

nocache_headers();

/** This action is documented in wp-admin/admin.php */

do_action( 'admin_init' );

$core_actions_get = array(

	'fetch-list',

	'ajax-tag-search',

	'wp-compression-test',

	'imgedit-preview',

	'oembed-cache',

	'autocomplete-user',

	'dashboard-widgets',

	'logged-in',

);

$core_actions_post = array(

	'oembed-cache',

	'image-editor',

	'delete-comment',

	'delete-tag',

	'delete-link',

	'delete-meta',

	'delete-post',

	'trash-post',

	'untrash-post',

	'delete-page',

	'dim-comment',

	'add-link-category',

	'add-tag',

	'get-tagcloud',

	'get-comments',

	'replyto-comment',

	'edit-comment',

	'add-menu-item',

	'add-meta',

	'add-user',

	'closed-postboxes',

	'hidden-columns',

	'update-welcome-panel',

	'menu-get-metabox',

	'wp-link-ajax',

	'menu-locations-save',

	'menu-quick-search',

	'meta-box-order',

	'get-permalink',

	'sample-permalink',

	'inline-save',

	'inline-save-tax',

	'find_posts',

	'widgets-order',

	'save-widget',

	'delete-inactive-widgets',

	'set-post-thumbnail',

	'date_format',

	'time_format',

	'wp-remove-post-lock',

	'dismiss-wp-pointer',

	'upload-attachment',

	'get-attachment',

	'query-attachments',

	'save-attachment',

	'save-attachment-compat',

	'send-link-to-editor',

	'send-attachment-to-editor',

	'save-attachment-order',

	'heartbeat',

	'get-revision-diffs',

	'save-user-color-scheme',

	'update-widget',

	'query-themes',

	'parse-embed',

	'set-attachment-thumbnail',

	'parse-media-shortcode',

	'destroy-sessions',

	'install-plugin',

	'update-plugin',

	'crop-image',

	'generate-password',

	'save-wporg-username',

	'delete-plugin',

	'search-plugins',

	'search-install-plugins',

	'activate-plugin',

	'update-theme',

	'delete-theme',

	'install-theme',

	'get-post-thumbnail-html',

	'get-community-events',

	'edit-theme-plugin-file',

	'wp-privacy-export-personal-data',

	'wp-privacy-erase-personal-data',

	'health-check-site-status-result',

	'health-check-dotorg-communication',

	'health-check-is-in-debug-mode',

	'health-check-background-updates',

	'health-check-loopback-requests',

	'health-check-get-sizes',

);

// Deprecated

$core_actions_post_deprecated = array( 'wp-fullscreen-save-post', 'press-this-save-post', 'press-this-add-category' );

$core_actions_post            = array_merge( $core_actions_post, $core_actions_post_deprecated );

// Register core Ajax calls.

if ( ! empty( $_GET['action'] ) && in_array( $_GET['action'], $core_actions_get ) ) {

	add_action( 'wp_ajax_' . $_GET['action'], 'wp_ajax_' . str_replace( '-', '_', $_GET['action'] ), 1 );

}

if ( ! empty( $_POST['action'] ) && in_array( $_POST['action'], $core_actions_post ) ) {

	add_action( 'wp_ajax_' . $_POST['action'], 'wp_ajax_' . str_replace( '-', '_', $_POST['action'] ), 1 );

}

add_action( 'wp_ajax_nopriv_heartbeat', 'wp_ajax_nopriv_heartbeat', 1 );

$action = ( isset( $_REQUEST['action'] ) ) ? $_REQUEST['action'] : '';

if ( is_user_logged_in() ) {

	// If no action is registered, return a Bad Request response.

	if ( ! has_action( "wp_ajax_{$action}" ) ) {

		wp_die( '0', 400 );

	}

	/**

	 * Fires authenticated Ajax actions for logged-in users.

	 *

	 * The dynamic portion of the hook name, `$action`, refers

	 * to the name of the Ajax action callback being fired.

	 *

	 * @since 2.1.0

	 */

	do_action( "wp_ajax_{$action}" );

} else {

	// If no action is registered, return a Bad Request response.

	if ( ! has_action( "wp_ajax_nopriv_{$action}" ) ) {

		wp_die( '0', 400 );

	}

	/**

	 * Fires non-authenticated Ajax actions for logged-out users.

	 *

	 * The dynamic portion of the hook name, `$action`, refers

	 * to the name of the Ajax action callback being fired.

	 *

	 * @since 2.8.0

	 */

	do_action( "wp_ajax_nopriv_{$action}" );

}

// Default status

wp_die( '0' );