3 * WordPress Ajax Process Execution
6 * @subpackage Administration
8 * @link https://codex.wordpress.org/AJAX_in_Plugins
12 * Executing Ajax process.
16 define( 'DOING_AJAX', true );
17 if ( ! defined( 'WP_ADMIN' ) ) {
18 define( 'WP_ADMIN', true );
21 /** Load WordPress Bootstrap */
22 require_once( dirname( dirname( __FILE__ ) ) . '/wp-load.php' );
24 /** Allow for cross-domain requests (from the front end). */
25 send_origin_headers();
27 // Require an action parameter
28 if ( empty( $_REQUEST['action'] ) )
31 /** Load WordPress Administration APIs */
32 require_once( ABSPATH . 'wp-admin/includes/admin.php' );
34 /** Load Ajax Handlers for WordPress Core */
35 require_once( ABSPATH . 'wp-admin/includes/ajax-actions.php' );
37 @header( 'Content-Type: text/html; charset=' . get_option( 'blog_charset' ) );
38 @header( 'X-Robots-Tag: noindex' );
40 send_nosniff_header();
43 /** This action is documented in wp-admin/admin.php */
44 do_action( 'admin_init' );
46 $core_actions_get = array(
47 'fetch-list', 'ajax-tag-search', 'wp-compression-test', 'imgedit-preview', 'oembed-cache',
48 'autocomplete-user', 'dashboard-widgets', 'logged-in',
51 $core_actions_post = array(
52 'oembed-cache', 'image-editor', 'delete-comment', 'delete-tag', 'delete-link',
53 'delete-meta', 'delete-post', 'trash-post', 'untrash-post', 'delete-page', 'dim-comment',
54 'add-link-category', 'add-tag', 'get-tagcloud', 'get-comments', 'replyto-comment',
55 'edit-comment', 'add-menu-item', 'add-meta', 'add-user', 'closed-postboxes',
56 'hidden-columns', 'update-welcome-panel', 'menu-get-metabox', 'wp-link-ajax',
57 'menu-locations-save', 'menu-quick-search', 'meta-box-order', 'get-permalink',
58 'sample-permalink', 'inline-save', 'inline-save-tax', 'find_posts', 'widgets-order',
59 'save-widget', 'delete-inactive-widgets', 'set-post-thumbnail', 'date_format', 'time_format',
60 'wp-remove-post-lock', 'dismiss-wp-pointer', 'upload-attachment', 'get-attachment',
61 'query-attachments', 'save-attachment', 'save-attachment-compat', 'send-link-to-editor',
62 'send-attachment-to-editor', 'save-attachment-order', 'heartbeat', 'get-revision-diffs',
63 'save-user-color-scheme', 'update-widget', 'query-themes', 'parse-embed', 'set-attachment-thumbnail',
64 'parse-media-shortcode', 'destroy-sessions', 'install-plugin', 'update-plugin', 'press-this-save-post',
65 'press-this-add-category', 'crop-image', 'generate-password', 'save-wporg-username', 'delete-plugin',
66 'search-plugins', 'search-install-plugins', 'activate-plugin', 'update-theme', 'delete-theme',
67 'install-theme', 'get-post-thumbnail-html',
71 $core_actions_post[] = 'wp-fullscreen-save-post';
73 // Register core Ajax calls.
74 if ( ! empty( $_GET['action'] ) && in_array( $_GET['action'], $core_actions_get ) )
75 add_action( 'wp_ajax_' . $_GET['action'], 'wp_ajax_' . str_replace( '-', '_', $_GET['action'] ), 1 );
77 if ( ! empty( $_POST['action'] ) && in_array( $_POST['action'], $core_actions_post ) )
78 add_action( 'wp_ajax_' . $_POST['action'], 'wp_ajax_' . str_replace( '-', '_', $_POST['action'] ), 1 );
80 add_action( 'wp_ajax_nopriv_heartbeat', 'wp_ajax_nopriv_heartbeat', 1 );
82 if ( is_user_logged_in() ) {
84 * Fires authenticated Ajax actions for logged-in users.
86 * The dynamic portion of the hook name, `$_REQUEST['action']`,
87 * refers to the name of the Ajax action callback being fired.
91 do_action( 'wp_ajax_' . $_REQUEST['action'] );
94 * Fires non-authenticated Ajax actions for logged-out users.
96 * The dynamic portion of the hook name, `$_REQUEST['action']`,
97 * refers to the name of the Ajax action callback being fired.
101 do_action( 'wp_ajax_nopriv_' . $_REQUEST['action'] );