X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/8f374b7233bc2815ccc387e448d208c5434eb961..1132430022383fdf47fa6cb9377300fd885297aa:/wp-admin/includes/ajax-actions.php diff --git a/wp-admin/includes/ajax-actions.php b/wp-admin/includes/ajax-actions.php index 5ced9016..a18dbe7f 100644 --- a/wp-admin/includes/ajax-actions.php +++ b/wp-admin/includes/ajax-actions.php @@ -6,40 +6,86 @@ * @subpackage Administration */ -/* - * No-privilege Ajax handlers. - */ +// +// No-privilege Ajax handlers. +// -function wp_ajax_nopriv_autosave() { - $id = isset( $_POST['post_ID'] ) ? (int) $_POST['post_ID'] : 0; +/** + * Ajax handler for the Heartbeat API in + * the no-privilege context. + * + * Runs when the user is not logged in. + * + * @since 3.6.0 + */ +function wp_ajax_nopriv_heartbeat() { + $response = array(); - if ( ! $id ) - wp_die( -1 ); + // screen_id is the same as $current_screen->id and the JS global 'pagenow'. + if ( ! empty($_POST['screen_id']) ) + $screen_id = sanitize_key($_POST['screen_id']); + else + $screen_id = 'front'; + + if ( ! empty($_POST['data']) ) { + $data = wp_unslash( (array) $_POST['data'] ); + + /** + * Filter Heartbeat AJAX response in no-privilege environments. + * + * @since 3.6.0 + * + * @param array|object $response The no-priv Heartbeat response object or array. + * @param array $data An array of data passed via $_POST. + * @param string $screen_id The screen id. + */ + $response = apply_filters( 'heartbeat_nopriv_received', $response, $data, $screen_id ); + } - $message = sprintf( __('ALERT: You are logged out! Could not save draft. Please log in again.'), wp_login_url() ); - $x = new WP_Ajax_Response( array( - 'what' => 'autosave', - 'id' => $id, - 'data' => $message - ) ); - $x->send(); + /** + * Filter Heartbeat AJAX response when no data is passed. + * + * @since 3.6.0 + * + * @param array|object $response The Heartbeat response object or array. + * @param string $screen_id The screen id. + */ + $response = apply_filters( 'heartbeat_nopriv_send', $response, $screen_id ); + + /** + * Fires when Heartbeat ticks in no-privilege environments. + * + * Allows the transport to be easily replaced with long-polling. + * + * @since 3.6.0 + * + * @param array|object $response The no-priv Heartbeat response. + * @param string $screen_id The screen id. + */ + do_action( 'heartbeat_nopriv_tick', $response, $screen_id ); + + // Send the current time according to the server. + $response['server_time'] = time(); + + wp_send_json($response); } -/* - * GET-based Ajax handlers. +// +// GET-based Ajax handlers. +// + +/** + * Ajax handler for fetching a list table. + * + * @since 3.1.0 */ function wp_ajax_fetch_list() { - global $current_screen, $wp_list_table; + global $wp_list_table; $list_class = $_GET['list_args']['class']; check_ajax_referer( "fetch-list-$list_class", '_ajax_fetch_list_nonce' ); - $current_screen = convert_to_screen( $_GET['list_args']['screen']['id'] ); - - define( 'WP_NETWORK_ADMIN', $current_screen->is_network ); - define( 'WP_USER_ADMIN', $current_screen->is_user ); - - $wp_list_table = _get_list_table( $list_class ); + $wp_list_table = _get_list_table( $list_class, array( 'screen' => $_GET['list_args']['screen']['id'] ) ); if ( ! $wp_list_table ) wp_die( 0 ); @@ -50,21 +96,28 @@ function wp_ajax_fetch_list() { wp_die( 0 ); } + +/** + * Ajax handler for tag search. + * + * @since 3.1.0 + */ function wp_ajax_ajax_tag_search() { - global $wpdb; + if ( ! isset( $_GET['tax'] ) ) { + wp_die( 0 ); + } - if ( isset( $_GET['tax'] ) ) { - $taxonomy = sanitize_key( $_GET['tax'] ); - $tax = get_taxonomy( $taxonomy ); - if ( ! $tax ) - wp_die( 0 ); - if ( ! current_user_can( $tax->cap->assign_terms ) ) - wp_die( -1 ); - } else { + $taxonomy = sanitize_key( $_GET['tax'] ); + $tax = get_taxonomy( $taxonomy ); + if ( ! $tax ) { wp_die( 0 ); } - $s = stripslashes( $_GET['q'] ); + if ( ! current_user_can( $tax->cap->assign_terms ) ) { + wp_die( -1 ); + } + + $s = wp_unslash( $_GET['q'] ); $comma = _x( ',', 'tag delimiter' ); if ( ',' !== $comma ) @@ -74,15 +127,37 @@ function wp_ajax_ajax_tag_search() { $s = $s[count( $s ) - 1]; } $s = trim( $s ); - if ( strlen( $s ) < 2 ) - wp_die(); // require 2 chars for matching - $results = $wpdb->get_col( $wpdb->prepare( "SELECT t.name FROM $wpdb->term_taxonomy AS tt INNER JOIN $wpdb->terms AS t ON tt.term_id = t.term_id WHERE tt.taxonomy = %s AND t.name LIKE (%s)", $taxonomy, '%' . like_escape( $s ) . '%' ) ); + /** + * Filter the minimum number of characters required to fire a tag search via AJAX. + * + * @since 4.0.0 + * + * @param int $characters The minimum number of characters required. Default 2. + * @param object $tax The taxonomy object. + * @param string $s The search term. + */ + $term_search_min_chars = (int) apply_filters( 'term_search_min_chars', 2, $tax, $s ); + + /* + * Require $term_search_min_chars chars for matching (default: 2) + * ensure it's a non-negative, non-zero integer. + */ + if ( ( $term_search_min_chars == 0 ) || ( strlen( $s ) < $term_search_min_chars ) ){ + wp_die(); + } + + $results = get_terms( $taxonomy, array( 'name__like' => $s, 'fields' => 'names', 'hide_empty' => false ) ); echo join( $results, "\n" ); wp_die(); } +/** + * Ajax handler for compression testing. + * + * @since 3.1.0 + */ function wp_ajax_wp_compression_test() { if ( !current_user_can( 'manage_options' ) ) wp_die( -1 ); @@ -128,6 +203,11 @@ function wp_ajax_wp_compression_test() { wp_die( 0 ); } +/** + * Ajax handler for image editor previews. + * + * @since 3.1.0 + */ function wp_ajax_imgedit_preview() { $post_id = intval($_GET['postid']); if ( empty($post_id) || !current_user_can('edit_post', $post_id) ) @@ -142,33 +222,53 @@ function wp_ajax_imgedit_preview() { wp_die(); } +/** + * Ajax handler for oEmbed caching. + * + * @since 3.1.0 + */ function wp_ajax_oembed_cache() { - global $wp_embed; - - $return = ( $wp_embed->cache_oembed( $_GET['post'] ) ) ? '1' : '0'; - wp_die( $return ); + $GLOBALS['wp_embed']->cache_oembed( $_GET['post'] ); + wp_die( 0 ); } +/** + * Ajax handler for user autocomplete. + * + * @since 3.4.0 + */ function wp_ajax_autocomplete_user() { if ( ! is_multisite() || ! current_user_can( 'promote_users' ) || wp_is_large_network( 'users' ) ) wp_die( -1 ); + /** This filter is documented in wp-admin/user-new.php */ if ( ! is_super_admin() && ! apply_filters( 'autocomplete_users_for_site_admins', false ) ) wp_die( -1 ); $return = array(); // Check the type of request - if ( isset( $_REQUEST['autocomplete_type'] ) ) + // Current allowed values are `add` and `search` + if ( isset( $_REQUEST['autocomplete_type'] ) && 'search' === $_REQUEST['autocomplete_type'] ) { $type = $_REQUEST['autocomplete_type']; - else + } else { $type = 'add'; + } + + // Check the desired field for value + // Current allowed values are `user_email` and `user_login` + if ( isset( $_REQUEST['autocomplete_field'] ) && 'user_email' === $_REQUEST['autocomplete_field'] ) { + $field = $_REQUEST['autocomplete_field']; + } else { + $field = 'user_login'; + } // Exclude current users of this blog - if ( isset( $_REQUEST['site_id'] ) ) + if ( isset( $_REQUEST['site_id'] ) ) { $id = absint( $_REQUEST['site_id'] ); - else + } else { $id = get_current_blog_id(); + } $include_blog_users = ( $type == 'search' ? get_users( array( 'blog_id' => $id, 'fields' => 'ID' ) ) : array() ); $exclude_blog_users = ( $type == 'add' ? get_users( array( 'blog_id' => $id, 'fields' => 'ID' ) ) : array() ); @@ -185,56 +285,63 @@ function wp_ajax_autocomplete_user() { $return[] = array( /* translators: 1: user_login, 2: user_email */ 'label' => sprintf( __( '%1$s (%2$s)' ), $user->user_login, $user->user_email ), - 'value' => $user->user_login, + 'value' => $user->$field, ); } - wp_die( json_encode( $return ) ); + wp_die( wp_json_encode( $return ) ); } +/** + * Ajax handler for dashboard widgets. + * + * @since 3.4.0 + */ function wp_ajax_dashboard_widgets() { - require ABSPATH . 'wp-admin/includes/dashboard.php'; + require_once ABSPATH . 'wp-admin/includes/dashboard.php'; + + $pagenow = $_GET['pagenow']; + if ( $pagenow === 'dashboard-user' || $pagenow === 'dashboard-network' || $pagenow === 'dashboard' ) { + set_current_screen( $pagenow ); + } switch ( $_GET['widget'] ) { - case 'dashboard_incoming_links' : - wp_dashboard_incoming_links(); - break; case 'dashboard_primary' : wp_dashboard_primary(); break; - case 'dashboard_secondary' : - wp_dashboard_secondary(); - break; - case 'dashboard_plugins' : - wp_dashboard_plugins(); - break; } wp_die(); } +/** + * Ajax handler for Customizer preview logged-in status. + * + * @since 3.4.0 + */ function wp_ajax_logged_in() { wp_die( 1 ); } -/* - * Ajax helper. - */ +// +// Ajax helpers. +// /** * Sends back current comment total and new page links if they need to be updated. * * Contrary to normal success AJAX response ("1"), die with time() on success. * - * @since 2.7 + * @since 2.7.0 * * @param int $comment_id * @return die */ function _wp_ajax_delete_comment_response( $comment_id, $delta = -1 ) { - $total = (int) @$_POST['_total']; - $per_page = (int) @$_POST['_per_page']; - $page = (int) @$_POST['_page']; - $url = esc_url_raw( @$_POST['_url'] ); + $total = isset( $_POST['_total'] ) ? (int) $_POST['_total'] : 0; + $per_page = isset( $_POST['_per_page'] ) ? (int) $_POST['_per_page'] : 0; + $page = isset( $_POST['_page'] ) ? (int) $_POST['_page'] : 0; + $url = isset( $_POST['_url'] ) ? esc_url_raw( $_POST['_url'] ) : ''; + // JS didn't send us everything we need to know. Just die with success message if ( !$total || !$per_page || !$page || !$url ) wp_die( time() ); @@ -258,16 +365,19 @@ function _wp_ajax_delete_comment_response( $comment_id, $delta = -1 ) { $comment_count = wp_count_comments($post_id); - if ( isset( $comment_count->$status ) ) // We're looking for a known type of comment count + // We're looking for a known type of comment count. + if ( isset( $comment_count->$status ) ) $total = $comment_count->$status; - // else use the decremented value from above + // Else use the decremented value from above. } - $time = time(); // The time since the last comment count + // The time since the last comment count. + $time = time(); $x = new WP_Ajax_Response( array( 'what' => 'comment', - 'id' => $comment_id, // here for completeness - not used + // Here for completeness - not used. + 'id' => $comment_id, 'supplemental' => array( 'total_items_i18n' => sprintf( _n( '1 item', '%s items', $total ), number_format_i18n( $total ) ), 'total_pages' => ceil( $total / $per_page ), @@ -279,10 +389,15 @@ function _wp_ajax_delete_comment_response( $comment_id, $delta = -1 ) { $x->send(); } -/* - * POST-based Ajax handlers. - */ +// +// POST-based Ajax handlers. +// +/** + * Ajax handler for adding a hierarchical term. + * + * @since 3.1.0 + */ function _wp_ajax_add_hierarchical_term() { $action = $_POST['action']; $taxonomy = get_taxonomy(substr($action, 4)); @@ -331,7 +446,7 @@ function _wp_ajax_add_hierarchical_term() { $term_id = $parent->term_id; while ( $parent->parent ) { // get the top parent - $parent = &get_term( $parent->parent, $taxonomy->name ); + $parent = get_term( $parent->parent, $taxonomy->name ); if ( is_wp_error( $parent ) ) break; $term_id = $parent->term_id; @@ -362,6 +477,11 @@ function _wp_ajax_add_hierarchical_term() { $x->send(); } +/** + * Ajax handler for deleting a comment. + * + * @since 3.1.0 + */ function wp_ajax_delete_comment() { $id = isset( $_POST['id'] ) ? (int) $_POST['id'] : 0; @@ -405,6 +525,11 @@ function wp_ajax_delete_comment() { wp_die( 0 ); } +/** + * Ajax handler for deleting a tag. + * + * @since 3.1.0 + */ function wp_ajax_delete_tag() { $tag_id = (int) $_POST['tag_ID']; check_ajax_referer( "delete-tag_$tag_id" ); @@ -425,6 +550,11 @@ function wp_ajax_delete_tag() { wp_die( 0 ); } +/** + * Ajax handler for deleting a link. + * + * @since 3.1.0 + */ function wp_ajax_delete_link() { $id = isset( $_POST['id'] ) ? (int) $_POST['id'] : 0; @@ -442,6 +572,11 @@ function wp_ajax_delete_link() { wp_die( 0 ); } +/** + * Ajax handler for deleting meta. + * + * @since 3.1.0 + */ function wp_ajax_delete_meta() { $id = isset( $_POST['id'] ) ? (int) $_POST['id'] : 0; @@ -456,6 +591,13 @@ function wp_ajax_delete_meta() { wp_die( 0 ); } +/** + * Ajax handler for deleting a post. + * + * @since 3.1.0 + * + * @param string $action Action to perform. + */ function wp_ajax_delete_post( $action ) { if ( empty( $action ) ) $action = 'delete-post'; @@ -474,6 +616,13 @@ function wp_ajax_delete_post( $action ) { wp_die( 0 ); } +/** + * Ajax handler for sending a post to the trash. + * + * @since 3.1.0 + * + * @param string $action Action to perform. + */ function wp_ajax_trash_post( $action ) { if ( empty( $action ) ) $action = 'trash-post'; @@ -497,6 +646,13 @@ function wp_ajax_trash_post( $action ) { wp_die( 0 ); } +/** + * Ajax handler to restore a post from the trash. + * + * @since 3.1.0 + * + * @param string $action Action to perform. + */ function wp_ajax_untrash_post( $action ) { if ( empty( $action ) ) $action = 'untrash-post'; @@ -512,7 +668,7 @@ function wp_ajax_delete_page( $action ) { if ( !current_user_can( 'delete_page', $id ) ) wp_die( -1 ); - if ( !get_page( $id ) ) + if ( ! get_post( $id ) ) wp_die( 1 ); if ( wp_delete_post( $id ) ) @@ -521,6 +677,11 @@ function wp_ajax_delete_page( $action ) { wp_die( 0 ); } +/** + * Ajax handler to dim a comment. + * + * @since 3.1.0 + */ function wp_ajax_dim_comment() { $id = isset( $_POST['id'] ) ? (int) $_POST['id'] : 0; @@ -536,7 +697,7 @@ function wp_ajax_dim_comment() { wp_die( -1 ); $current = wp_get_comment_status( $comment->comment_ID ); - if ( $_POST['new'] == $current ) + if ( isset( $_POST['new'] ) && $_POST['new'] == $current ) wp_die( time() ); check_ajax_referer( "approve-comment_$id" ); @@ -558,13 +719,20 @@ function wp_ajax_dim_comment() { wp_die( 0 ); } +/** + * Ajax handler for deleting a link category. + * + * @since 3.1.0 + * + * @param string $action Action to perform. + */ function wp_ajax_add_link_category( $action ) { if ( empty( $action ) ) $action = 'add-link-category'; check_ajax_referer( $action ); if ( !current_user_can( 'manage_categories' ) ) wp_die( -1 ); - $names = explode(',', $_POST['newcat']); + $names = explode(',', wp_unslash( $_POST['newcat'] ) ); $x = new WP_Ajax_Response(); foreach ( $names as $cat_name ) { $cat_name = trim($cat_name); @@ -577,7 +745,7 @@ function wp_ajax_add_link_category( $action ) { continue; else if ( is_array( $cat_id ) ) $cat_id = $cat_id['term_id']; - $cat_name = esc_html(stripslashes($cat_name)); + $cat_name = esc_html( $cat_name ); $x->add( array( 'what' => 'link-category', 'id' => $cat_id, @@ -588,11 +756,15 @@ function wp_ajax_add_link_category( $action ) { $x->send(); } +/** + * Ajax handler to add a tag. + * + * @since 3.1.0 + */ function wp_ajax_add_tag() { global $wp_list_table; check_ajax_referer( 'add-tag', '_wpnonce_add-tag' ); - $post_type = !empty($_POST['post_type']) ? $_POST['post_type'] : 'post'; $taxonomy = !empty($_POST['taxonomy']) ? $_POST['taxonomy'] : 'post_tag'; $tax = get_taxonomy($taxonomy); @@ -615,13 +787,11 @@ function wp_ajax_add_tag() { $x->send(); } - set_current_screen( $_POST['screen'] ); - - $wp_list_table = _get_list_table('WP_Terms_List_Table'); + $wp_list_table = _get_list_table( 'WP_Terms_List_Table', array( 'screen' => $_POST['screen'] ) ); $level = 0; if ( is_taxonomy_hierarchical($taxonomy) ) { - $level = count( get_ancestors( $tag->term_id, $taxonomy ) ); + $level = count( get_ancestors( $tag->term_id, $taxonomy, 'taxonomy' ) ); ob_start(); $wp_list_table->single_row( $tag, $level ); $noparents = ob_get_clean(); @@ -643,22 +813,30 @@ function wp_ajax_add_tag() { $x->send(); } +/** + * Ajax handler for getting a tagcloud. + * + * @since 3.1.0 + */ function wp_ajax_get_tagcloud() { - if ( isset( $_POST['tax'] ) ) { - $taxonomy = sanitize_key( $_POST['tax'] ); - $tax = get_taxonomy( $taxonomy ); - if ( ! $tax ) - wp_die( 0 ); - if ( ! current_user_can( $tax->cap->assign_terms ) ) - wp_die( -1 ); - } else { + if ( ! isset( $_POST['tax'] ) ) { + wp_die( 0 ); + } + + $taxonomy = sanitize_key( $_POST['tax'] ); + $tax = get_taxonomy( $taxonomy ); + if ( ! $tax ) { wp_die( 0 ); } + + if ( ! current_user_can( $tax->cap->assign_terms ) ) { + wp_die( -1 ); + } $tags = get_terms( $taxonomy, array( 'number' => 45, 'orderby' => 'count', 'order' => 'DESC' ) ); if ( empty( $tags ) ) - wp_die( isset( $tax->no_tagcloud ) ? $tax->no_tagcloud : __('No tags found!') ); + wp_die( $tax->labels->not_found ); if ( is_wp_error( $tags ) ) wp_die( $tags->get_error_message() ); @@ -679,6 +857,13 @@ function wp_ajax_get_tagcloud() { wp_die(); } +/** + * Ajax handler for getting comments. + * + * @since 3.1.0 + * + * @param string $action Action to perform. + */ function wp_ajax_get_comments( $action ) { global $wp_list_table, $post_id; if ( empty( $action ) ) @@ -686,11 +871,18 @@ function wp_ajax_get_comments( $action ) { check_ajax_referer( $action ); - set_current_screen( 'edit-comments' ); + if ( empty( $post_id ) && ! empty( $_REQUEST['p'] ) ) { + $id = absint( $_REQUEST['p'] ); + if ( ! empty( $id ) ) + $post_id = $id; + } + + if ( empty( $post_id ) ) + wp_die( -1 ); - $wp_list_table = _get_list_table('WP_Post_Comments_List_Table'); + $wp_list_table = _get_list_table( 'WP_Post_Comments_List_Table', array( 'screen' => 'edit-comments' ) ); - if ( !current_user_can( 'edit_post', $post_id ) ) + if ( ! current_user_can( 'edit_post', $post_id ) ) wp_die( -1 ); $wp_list_table->prepare_items(); @@ -716,34 +908,45 @@ function wp_ajax_get_comments( $action ) { $x->send(); } +/** + * Ajax handler for replying to a comment. + * + * @since 3.1.0 + * + * @param string $action Action to perform. + */ function wp_ajax_replyto_comment( $action ) { - global $wp_list_table, $wpdb; + global $wp_list_table; if ( empty( $action ) ) $action = 'replyto-comment'; check_ajax_referer( $action, '_ajax_nonce-replyto-comment' ); - set_current_screen( 'edit-comments' ); - $comment_post_ID = (int) $_POST['comment_post_ID']; - if ( !current_user_can( 'edit_post', $comment_post_ID ) ) + $post = get_post( $comment_post_ID ); + if ( ! $post ) wp_die( -1 ); - $status = $wpdb->get_var( $wpdb->prepare("SELECT post_status FROM $wpdb->posts WHERE ID = %d", $comment_post_ID) ); + if ( !current_user_can( 'edit_post', $comment_post_ID ) ) + wp_die( -1 ); - if ( empty($status) ) + if ( empty( $post->post_status ) ) wp_die( 1 ); - elseif ( in_array($status, array('draft', 'pending', 'trash') ) ) + elseif ( in_array($post->post_status, array('draft', 'pending', 'trash') ) ) wp_die( __('ERROR: you are replying to a comment on a draft post.') ); $user = wp_get_current_user(); if ( $user->exists() ) { $user_ID = $user->ID; - $comment_author = $wpdb->escape($user->display_name); - $comment_author_email = $wpdb->escape($user->user_email); - $comment_author_url = $wpdb->escape($user->user_url); - $comment_content = trim($_POST['content']); + $comment_author = wp_slash( $user->display_name ); + $comment_author_email = wp_slash( $user->user_email ); + $comment_author_url = wp_slash( $user->user_url ); + $comment_content = trim( $_POST['content'] ); + $comment_type = isset( $_POST['comment_type'] ) ? trim( $_POST['comment_type'] ) : ''; if ( current_user_can( 'unfiltered_html' ) ) { + if ( ! isset( $_POST['_wp_unfiltered_html_comment'] ) ) + $_POST['_wp_unfiltered_html_comment'] = ''; + if ( wp_create_nonce( 'unfiltered-html-comment' ) != $_POST['_wp_unfiltered_html_comment'] ) { kses_remove_filters(); // start with a clean slate kses_init_filters(); // set up the filters @@ -756,17 +959,13 @@ function wp_ajax_replyto_comment( $action ) { if ( '' == $comment_content ) wp_die( __( 'ERROR: please type a comment.' ) ); - $comment_parent = absint($_POST['comment_ID']); + $comment_parent = 0; + if ( isset( $_POST['comment_ID'] ) ) + $comment_parent = absint( $_POST['comment_ID'] ); $comment_auto_approved = false; $commentdata = compact('comment_post_ID', 'comment_author', 'comment_author_email', 'comment_author_url', 'comment_content', 'comment_type', 'comment_parent', 'user_ID'); - $comment_id = wp_new_comment( $commentdata ); - $comment = get_comment($comment_id); - if ( ! $comment ) wp_die( 1 ); - - $position = ( isset($_POST['position']) && (int) $_POST['position'] ) ? (int) $_POST['position'] : '-1'; - - // automatically approve parent comment + // Automatically approve parent comment. if ( !empty($_POST['approve_parent']) ) { $parent = get_comment( $comment_parent ); @@ -776,20 +975,25 @@ function wp_ajax_replyto_comment( $action ) { } } + $comment_id = wp_new_comment( $commentdata ); + $comment = get_comment($comment_id); + if ( ! $comment ) wp_die( 1 ); + + $position = ( isset($_POST['position']) && (int) $_POST['position'] ) ? (int) $_POST['position'] : '-1'; + ob_start(); - if ( 'dashboard' == $_REQUEST['mode'] ) { - require_once( ABSPATH . 'wp-admin/includes/dashboard.php' ); - _wp_dashboard_recent_comments_row( $comment ); + if ( isset( $_REQUEST['mode'] ) && 'dashboard' == $_REQUEST['mode'] ) { + require_once( ABSPATH . 'wp-admin/includes/dashboard.php' ); + _wp_dashboard_recent_comments_row( $comment ); + } else { + if ( isset( $_REQUEST['mode'] ) && 'single' == $_REQUEST['mode'] ) { + $wp_list_table = _get_list_table('WP_Post_Comments_List_Table', array( 'screen' => 'edit-comments' ) ); } else { - if ( 'single' == $_REQUEST['mode'] ) { - $wp_list_table = _get_list_table('WP_Post_Comments_List_Table'); - } else { - $wp_list_table = _get_list_table('WP_Comments_List_Table'); - } - $wp_list_table->single_row( $comment ); + $wp_list_table = _get_list_table('WP_Comments_List_Table', array( 'screen' => 'edit-comments' ) ); } - $comment_list_item = ob_get_contents(); - ob_end_clean(); + $wp_list_table->single_row( $comment ); + } + $comment_list_item = ob_get_clean(); $response = array( 'what' => 'comment', @@ -806,13 +1010,16 @@ function wp_ajax_replyto_comment( $action ) { $x->send(); } +/** + * Ajax handler for editing a comment. + * + * @since 3.1.0 + */ function wp_ajax_edit_comment() { global $wp_list_table; check_ajax_referer( 'replyto-comment', '_ajax_nonce-replyto-comment' ); - set_current_screen( 'edit-comments' ); - $comment_id = (int) $_POST['comment_ID']; if ( ! current_user_can( 'edit_comment', $comment_id ) ) wp_die( -1 ); @@ -820,21 +1027,21 @@ function wp_ajax_edit_comment() { if ( '' == $_POST['content'] ) wp_die( __( 'ERROR: please type a comment.' ) ); - $_POST['comment_status'] = $_POST['status']; + if ( isset( $_POST['status'] ) ) + $_POST['comment_status'] = $_POST['status']; edit_comment(); $position = ( isset($_POST['position']) && (int) $_POST['position']) ? (int) $_POST['position'] : '-1'; - $comments_status = isset($_POST['comments_listing']) ? $_POST['comments_listing'] : ''; - $checkbox = ( isset($_POST['checkbox']) && true == $_POST['checkbox'] ) ? 1 : 0; - $wp_list_table = _get_list_table( $checkbox ? 'WP_Comments_List_Table' : 'WP_Post_Comments_List_Table' ); + $wp_list_table = _get_list_table( $checkbox ? 'WP_Comments_List_Table' : 'WP_Post_Comments_List_Table', array( 'screen' => 'edit-comments' ) ); $comment = get_comment( $comment_id ); + if ( empty( $comment->comment_ID ) ) + wp_die( -1 ); ob_start(); - $wp_list_table->single_row( $comment ); - $comment_list_item = ob_get_contents(); - ob_end_clean(); + $wp_list_table->single_row( $comment ); + $comment_list_item = ob_get_clean(); $x = new WP_Ajax_Response(); @@ -848,6 +1055,11 @@ function wp_ajax_edit_comment() { $x->send(); } +/** + * Ajax handler for adding a menu item. + * + * @since 3.1.0 + */ function wp_ajax_add_menu_item() { check_ajax_referer( 'add-menu_item', 'menu-settings-column-nonce' ); @@ -901,6 +1113,7 @@ function wp_ajax_add_menu_item() { } } + /** This filter is documented in wp-admin/includes/nav-menu.php */ $walker_class_name = apply_filters( 'wp_edit_nav_menu_walker', 'Walker_Nav_Menu_Edit', $_POST['menu'] ); if ( ! class_exists( $walker_class_name ) ) @@ -916,8 +1129,14 @@ function wp_ajax_add_menu_item() { ); echo walk_nav_menu_tree( $menu_items, 0, (object) $args ); } + wp_die(); } +/** + * Ajax handler for adding meta. + * + * @since 3.1.0 + */ function wp_ajax_add_meta() { check_ajax_referer( 'add-meta', '_ajax_nonce-add-meta' ); $c = 0; @@ -929,6 +1148,8 @@ function wp_ajax_add_meta() { wp_die( -1 ); if ( isset($_POST['metakeyselect']) && '#NONE#' == $_POST['metakeyselect'] && empty($_POST['metakeyinput']) ) wp_die( 1 ); + + // If the post is an autodraft, save the post as a draft and then attempt to save the meta. if ( $post->post_status == 'auto-draft' ) { $save_POST = $_POST; // Backup $_POST $_POST = array(); // Make it empty for edit_post() @@ -937,7 +1158,7 @@ function wp_ajax_add_meta() { $_POST['post_type'] = $post->post_type; $_POST['post_status'] = 'draft'; $now = current_time('timestamp', 1); - $_POST['post_title'] = sprintf('Draft created on %s at %s', date(get_option('date_format'), $now), date(get_option('time_format'), $now)); + $_POST['post_title'] = sprintf( __( 'Draft created on %1$s at %2$s' ), date( get_option( 'date_format' ), $now ), date( get_option( 'time_format' ), $now ) ); if ( $pid = edit_post() ) { if ( is_wp_error( $pid ) ) { @@ -969,8 +1190,8 @@ function wp_ajax_add_meta() { ) ); } else { // Update? $mid = (int) key( $_POST['meta'] ); - $key = stripslashes( $_POST['meta'][$mid]['key'] ); - $value = stripslashes( $_POST['meta'][$mid]['value'] ); + $key = wp_unslash( $_POST['meta'][$mid]['key'] ); + $value = wp_unslash( $_POST['meta'][$mid]['value'] ); if ( '' == trim($key) ) wp_die( __( 'Please provide a custom field name.' ) ); if ( '' == trim($value) ) @@ -1001,6 +1222,13 @@ function wp_ajax_add_meta() { $x->send(); } +/** + * Ajax handler for adding a user. + * + * @since 3.1.0 + * + * @param string $action Action to perform. + */ function wp_ajax_add_user( $action ) { global $wp_list_table; if ( empty( $action ) ) @@ -1018,123 +1246,29 @@ function wp_ajax_add_user( $action ) { ) ); $x->send(); } - $user_object = new WP_User( $user_id ); + $user_object = get_userdata( $user_id ); $wp_list_table = _get_list_table('WP_Users_List_Table'); + $role = current( $user_object->roles ); + $x = new WP_Ajax_Response( array( 'what' => 'user', 'id' => $user_id, - 'data' => $wp_list_table->single_row( $user_object, '', $user_object->roles[0] ), + 'data' => $wp_list_table->single_row( $user_object, '', $role ), 'supplemental' => array( 'show-link' => sprintf(__( 'User %s added' ), "user-$user_id", $user_object->user_login), - 'role' => $user_object->roles[0] + 'role' => $role, ) ) ); $x->send(); } -function wp_ajax_autosave() { - global $login_grace_period; - - define( 'DOING_AUTOSAVE', true ); - - $nonce_age = check_ajax_referer( 'autosave', 'autosavenonce' ); - - $_POST['post_category'] = explode(",", $_POST['catslist']); - if ( $_POST['post_type'] == 'page' || empty($_POST['post_category']) ) - unset($_POST['post_category']); - - $do_autosave = (bool) $_POST['autosave']; - $do_lock = true; - - $data = $alert = ''; - /* translators: draft saved date format, see http://php.net/date */ - $draft_saved_date_format = __('g:i:s a'); - /* translators: %s: date and time */ - $message = sprintf( __('Draft saved at %s.'), date_i18n( $draft_saved_date_format ) ); - - $supplemental = array(); - if ( isset($login_grace_period) ) - $alert .= sprintf( __('Your login has expired. Please open a new browser window and log in again. '), add_query_arg( 'interim-login', 1, wp_login_url() ) ); - - $id = $revision_id = 0; - - $post_ID = (int) $_POST['post_ID']; - $_POST['ID'] = $post_ID; - $post = get_post($post_ID); - if ( 'auto-draft' == $post->post_status ) - $_POST['post_status'] = 'draft'; - - if ( $last = wp_check_post_lock( $post->ID ) ) { - $do_autosave = $do_lock = false; - - $last_user = get_userdata( $last ); - $last_user_name = $last_user ? $last_user->display_name : __( 'Someone' ); - $data = __( 'Autosave disabled.' ); - - $supplemental['disable_autosave'] = 'disable'; - $alert .= sprintf( __( '%s is currently editing this article. If you update it, you will overwrite the changes.' ), esc_html( $last_user_name ) ); - } - - if ( 'page' == $post->post_type ) { - if ( !current_user_can('edit_page', $post_ID) ) - wp_die( __( 'You are not allowed to edit this page.' ) ); - } else { - if ( !current_user_can('edit_post', $post_ID) ) - wp_die( __( 'You are not allowed to edit this post.' ) ); - } - - if ( $do_autosave ) { - // Drafts and auto-drafts are just overwritten by autosave - if ( 'auto-draft' == $post->post_status || 'draft' == $post->post_status ) { - $id = edit_post(); - } else { // Non drafts are not overwritten. The autosave is stored in a special post revision. - $revision_id = wp_create_post_autosave( $post->ID ); - if ( is_wp_error($revision_id) ) - $id = $revision_id; - else - $id = $post->ID; - } - $data = $message; - } else { - if ( ! empty( $_POST['auto_draft'] ) ) - $id = 0; // This tells us it didn't actually save - else - $id = $post->ID; - } - - if ( $do_lock && empty( $_POST['auto_draft'] ) && $id && is_numeric( $id ) ) { - $lock_result = wp_set_post_lock( $id ); - $supplemental['active-post-lock'] = implode( ':', $lock_result ); - } - - if ( $nonce_age == 2 ) { - $supplemental['replace-autosavenonce'] = wp_create_nonce('autosave'); - $supplemental['replace-getpermalinknonce'] = wp_create_nonce('getpermalink'); - $supplemental['replace-samplepermalinknonce'] = wp_create_nonce('samplepermalink'); - $supplemental['replace-closedpostboxesnonce'] = wp_create_nonce('closedpostboxes'); - $supplemental['replace-_ajax_linking_nonce'] = wp_create_nonce( 'internal-linking' ); - if ( $id ) { - if ( $_POST['post_type'] == 'post' ) - $supplemental['replace-_wpnonce'] = wp_create_nonce('update-post_' . $id); - elseif ( $_POST['post_type'] == 'page' ) - $supplemental['replace-_wpnonce'] = wp_create_nonce('update-page_' . $id); - } - } - - if ( ! empty($alert) ) - $supplemental['alert'] = $alert; - - $x = new WP_Ajax_Response( array( - 'what' => 'autosave', - 'id' => $id, - 'data' => $id ? $data : '', - 'supplemental' => $supplemental - ) ); - $x->send(); -} - +/** + * Ajax handler for closed post boxes. + * + * @since 3.1.0 + */ function wp_ajax_closed_postboxes() { check_ajax_referer( 'closedpostboxes', 'closedpostboxesnonce' ); $closed = isset( $_POST['closed'] ) ? explode( ',', $_POST['closed']) : array(); @@ -1162,10 +1296,14 @@ function wp_ajax_closed_postboxes() { wp_die( 1 ); } +/** + * Ajax handler for hidden columns. + * + * @since 3.1.0 + */ function wp_ajax_hidden_columns() { check_ajax_referer( 'screen-options-nonce', 'screenoptionnonce' ); - $hidden = isset( $_POST['hidden'] ) ? $_POST['hidden'] : ''; - $hidden = explode( ',', $_POST['hidden'] ); + $hidden = explode( ',', isset( $_POST['hidden'] ) ? $_POST['hidden'] : '' ); $page = isset( $_POST['page'] ) ? $_POST['page'] : ''; if ( $page != sanitize_key( $page ) ) @@ -1180,6 +1318,11 @@ function wp_ajax_hidden_columns() { wp_die( 1 ); } +/** + * Ajax handler for updating whether to display the welcome panel. + * + * @since 3.1.0 + */ function wp_ajax_update_welcome_panel() { check_ajax_referer( 'welcome-panel-nonce', 'welcomepanelnonce' ); @@ -1191,6 +1334,11 @@ function wp_ajax_update_welcome_panel() { wp_die( 1 ); } +/** + * Ajax handler for retrieving menu meta boxes. + * + * @since 3.1.0 + */ function wp_ajax_menu_get_metabox() { if ( ! current_user_can( 'edit_theme_options' ) ) wp_die( -1 ); @@ -1208,7 +1356,10 @@ function wp_ajax_menu_get_metabox() { } if ( ! empty( $_POST['item-object'] ) && isset( $items[$_POST['item-object']] ) ) { - $item = apply_filters( 'nav_menu_meta_box_object', $items[ $_POST['item-object'] ] ); + $menus_meta_box_object = $items[ $_POST['item-object'] ]; + + /** This filter is documented in wp-admin/includes/nav-menu.php */ + $item = apply_filters( 'nav_menu_meta_box_object', $menus_meta_box_object ); ob_start(); call_user_func_array($callback, array( null, @@ -1222,7 +1373,7 @@ function wp_ajax_menu_get_metabox() { $markup = ob_get_clean(); - echo json_encode(array( + echo wp_json_encode(array( 'replace-id' => $type . '-' . $item->name, 'markup' => $markup, )); @@ -1231,13 +1382,18 @@ function wp_ajax_menu_get_metabox() { wp_die(); } +/** + * Ajax handler for internal linking. + * + * @since 3.1.0 + */ function wp_ajax_wp_link_ajax() { check_ajax_referer( 'internal-linking', '_ajax_linking_nonce' ); $args = array(); if ( isset( $_POST['search'] ) ) - $args['s'] = stripslashes( $_POST['search'] ); + $args['s'] = wp_unslash( $_POST['search'] ); $args['pagenum'] = ! empty( $_POST['page'] ) ? absint( $_POST['page'] ) : 1; require(ABSPATH . WPINC . '/class-wp-editor.php'); @@ -1246,12 +1402,17 @@ function wp_ajax_wp_link_ajax() { if ( ! isset( $results ) ) wp_die( 0 ); - echo json_encode( $results ); + echo wp_json_encode( $results ); echo "\n"; wp_die(); } +/** + * Ajax handler for menu locations save. + * + * @since 3.1.0 + */ function wp_ajax_menu_locations_save() { if ( ! current_user_can( 'edit_theme_options' ) ) wp_die( -1 ); @@ -1262,6 +1423,11 @@ function wp_ajax_menu_locations_save() { wp_die( 1 ); } +/** + * Ajax handler for saving the meta box order. + * + * @since 3.1.0 + */ function wp_ajax_meta_box_order() { check_ajax_referer( 'meta-box-order' ); $order = isset( $_POST['order'] ) ? (array) $_POST['order'] : false; @@ -1287,6 +1453,11 @@ function wp_ajax_meta_box_order() { wp_die( 1 ); } +/** + * Ajax handler for menu quick searching. + * + * @since 3.1.0 + */ function wp_ajax_menu_quick_search() { if ( ! current_user_can( 'edit_theme_options' ) ) wp_die( -1 ); @@ -1298,12 +1469,22 @@ function wp_ajax_menu_quick_search() { wp_die(); } +/** + * Ajax handler to retrieve a permalink. + * + * @since 3.1.0 + */ function wp_ajax_get_permalink() { check_ajax_referer( 'getpermalink', 'getpermalinknonce' ); $post_id = isset($_POST['post_id'])? intval($_POST['post_id']) : 0; wp_die( add_query_arg( array( 'preview' => 'true' ), get_permalink( $post_id ) ) ); } +/** + * Ajax handler to retrieve a sample permalink. + * + * @since 3.1.0 + */ function wp_ajax_sample_permalink() { check_ajax_referer( 'samplepermalink', 'samplepermalinknonce' ); $post_id = isset($_POST['post_id'])? intval($_POST['post_id']) : 0; @@ -1312,6 +1493,11 @@ function wp_ajax_sample_permalink() { wp_die( get_sample_permalink_html( $post_id, $title, $slug ) ); } +/** + * Ajax handler for Quick Edit saving a post from a list table. + * + * @since 3.1.0 + */ function wp_ajax_inline_save() { global $wp_list_table; @@ -1328,8 +1514,6 @@ function wp_ajax_inline_save() { wp_die( __( 'You are not allowed to edit this post.' ) ); } - set_current_screen( $_POST['screen'] ); - if ( $last = wp_check_post_lock( $post_ID ) ) { $last_user = get_userdata( $last ); $last_user_name = $last_user ? $last_user->display_name : __( 'Someone' ); @@ -1340,18 +1524,20 @@ function wp_ajax_inline_save() { $data = &$_POST; $post = get_post( $post_ID, ARRAY_A ); - $post = add_magic_quotes($post); //since it is from db + + // Since it's coming from the database. + $post = wp_slash($post); $data['content'] = $post['post_content']; $data['excerpt'] = $post['post_excerpt']; - // rename - $data['user_ID'] = $GLOBALS['user_ID']; + // Rename. + $data['user_ID'] = get_current_user_id(); if ( isset($data['post_parent']) ) $data['parent_id'] = $data['post_parent']; - // status + // Status. if ( isset($data['keep_private']) && 'private' == $data['keep_private'] ) $data['post_status'] = 'private'; else @@ -1362,17 +1548,37 @@ function wp_ajax_inline_save() { if ( empty($data['ping_status']) ) $data['ping_status'] = 'closed'; - // update the post + // Hack: wp_unique_post_slug() doesn't work for drafts, so we will fake that our post is published. + if ( ! empty( $data['post_name'] ) && in_array( $post['post_status'], array( 'draft', 'pending' ) ) ) { + $post['post_status'] = 'publish'; + $data['post_name'] = wp_unique_post_slug( $data['post_name'], $post['ID'], $post['post_status'], $post['post_type'], $post['post_parent'] ); + } + + // Update the post. edit_post(); - $wp_list_table = _get_list_table('WP_Posts_List_Table'); + $wp_list_table = _get_list_table( 'WP_Posts_List_Table', array( 'screen' => $_POST['screen'] ) ); + + $level = 0; + $request_post = array( get_post( $_POST['post_ID'] ) ); + $parent = $request_post[0]->post_parent; + + while ( $parent > 0 ) { + $parent_post = get_post( $parent ); + $parent = $parent_post->post_parent; + $level++; + } - $mode = $_POST['post_view']; - $wp_list_table->display_rows( array( get_post( $_POST['post_ID'] ) ) ); + $wp_list_table->display_rows( array( get_post( $_POST['post_ID'] ) ), $level ); wp_die(); } +/** + * Ajax handler for quick edit saving for a term. + * + * @since 3.1.0 + */ function wp_ajax_inline_save_tax() { global $wp_list_table; @@ -1386,9 +1592,7 @@ function wp_ajax_inline_save_tax() { if ( ! current_user_can( $tax->cap->edit_terms ) ) wp_die( -1 ); - set_current_screen( 'edit-' . $taxonomy ); - - $wp_list_table = _get_list_table('WP_Terms_List_Table'); + $wp_list_table = _get_list_table( 'WP_Terms_List_Table', array( 'screen' => 'edit-' . $taxonomy ) ); if ( ! isset($_POST['tax_ID']) || ! ( $id = (int) $_POST['tax_ID'] ) ) wp_die( -1 ); @@ -1404,53 +1608,55 @@ function wp_ajax_inline_save_tax() { wp_die( $tag->get_error_message() ); wp_die( __( 'Item not updated.' ) ); } - - echo $wp_list_table->single_row( $tag ); } else { if ( is_wp_error($updated) && $updated->get_error_message() ) wp_die( $updated->get_error_message() ); wp_die( __( 'Item not updated.' ) ); } - + $level = 0; + $parent = $tag->parent; + while ( $parent > 0 ) { + $parent_tag = get_term( $parent, $taxonomy ); + $parent = $parent_tag->parent; + $level++; + } + $wp_list_table->single_row( $tag, $level ); wp_die(); } +/** + * Ajax handler for querying posts for the Find Posts modal. + * + * @see window.findPosts + * + * @since 3.1.0 + */ function wp_ajax_find_posts() { - global $wpdb; - check_ajax_referer( 'find-posts' ); - if ( empty($_POST['ps']) ) - wp_die(); - - if ( !empty($_POST['post_type']) && in_array( $_POST['post_type'], get_post_types() ) ) - $what = $_POST['post_type']; - else - $what = 'post'; - - $s = stripslashes($_POST['ps']); - preg_match_all('/".*?("|$)|((?<=[\\s",+])|^)[^\\s",+]+/', $s, $matches); - $search_terms = array_map('_search_terms_tidy', $matches[0]); + $post_types = get_post_types( array( 'public' => true ), 'objects' ); + unset( $post_types['attachment'] ); - $searchand = $search = ''; - foreach ( (array) $search_terms as $term ) { - $term = esc_sql( like_escape( $term ) ); - $search .= "{$searchand}(($wpdb->posts.post_title LIKE '%{$term}%') OR ($wpdb->posts.post_content LIKE '%{$term}%'))"; - $searchand = ' AND '; - } - $term = esc_sql( like_escape( $s ) ); - if ( count($search_terms) > 1 && $search_terms[0] != $s ) - $search .= " OR ($wpdb->posts.post_title LIKE '%{$term}%') OR ($wpdb->posts.post_content LIKE '%{$term}%')"; + $s = wp_unslash( $_POST['ps'] ); + $args = array( + 'post_type' => array_keys( $post_types ), + 'post_status' => 'any', + 'posts_per_page' => 50, + ); + if ( '' !== $s ) + $args['s'] = $s; - $posts = $wpdb->get_results( "SELECT ID, post_title, post_status, post_date FROM $wpdb->posts WHERE post_type = '$what' AND post_status IN ('draft', 'publish') AND ($search) ORDER BY post_date_gmt DESC LIMIT 50" ); + $posts = get_posts( $args ); if ( ! $posts ) { - $posttype = get_post_type_object($what); - wp_die( $posttype->labels->not_found ); + wp_send_json_error( __( 'No items found.' ) ); } - $html = ''; + $html = '

'.__('Title').''.__('Date').''.__('Status').'
'; + $alt = ''; foreach ( $posts as $post ) { + $title = trim( $post->post_title ) ? $post->post_title : __( '(no title)' ); + $alt = ( 'alternate' == $alt ) ? '' : 'alternate'; switch ( $post->post_status ) { case 'publish' : @@ -1475,20 +1681,20 @@ function wp_ajax_find_posts() { $time = mysql2date(__('Y/m/d'), $post->post_date); } - $html .= ''; - $html .= ''."\n\n"; + $html .= ''; + $html .= '' . "\n\n"; } - $html .= '

'.__('Title').''.__('Type').''.__('Date').''.__('Status').'
'.esc_html( $time ).''.esc_html( $stat ).'
' . esc_html( $post_types[$post->post_type]->labels->singular_name ) . ''.esc_html( $time ) . '' . esc_html( $stat ). '
'; - $x = new WP_Ajax_Response(); - $x->add( array( - 'what' => $what, - 'data' => $html - )); - $x->send(); + $html .= ''; + wp_send_json_success( $html ); } +/** + * Ajax handler for saving the widgets order. + * + * @since 3.1.0 + */ function wp_ajax_widgets_order() { check_ajax_referer( 'save-sidebar-widgets', 'savewidgets' ); @@ -1497,7 +1703,7 @@ function wp_ajax_widgets_order() { unset( $_POST['savewidgets'], $_POST['action'] ); - // save widgets order for all sidebars + // Save widgets order for all sidebars. if ( is_array($_POST['sidebars']) ) { $sidebars = array(); foreach ( $_POST['sidebars'] as $key => $val ) { @@ -1520,6 +1726,11 @@ function wp_ajax_widgets_order() { wp_die( -1 ); } +/** + * Ajax handler for saving a widget. + * + * @since 3.1.0 + */ function wp_ajax_save_widget() { global $wp_registered_widgets, $wp_registered_widget_controls, $wp_registered_widget_updates; @@ -1530,9 +1741,22 @@ function wp_ajax_save_widget() { unset( $_POST['savewidgets'], $_POST['action'] ); - do_action('load-widgets.php'); - do_action('widgets.php'); - do_action('sidebar_admin_setup'); + /** + * Fires early when editing the widgets displayed in sidebars. + * + * @since 2.8.0 + */ + do_action( 'load-widgets.php' ); + + /** + * Fires early when editing the widgets displayed in sidebars. + * + * @since 2.8.0 + */ + do_action( 'widgets.php' ); + + /** This action is documented in wp-admin/widgets.php */ + do_action( 'sidebar_admin_setup' ); $id_base = $_POST['id_base']; $widget_id = $_POST['widget-id']; @@ -1544,7 +1768,7 @@ function wp_ajax_save_widget() { $sidebars = wp_get_sidebars_widgets(); $sidebar = isset($sidebars[$sidebar_id]) ? $sidebars[$sidebar_id] : array(); - // delete + // Delete. if ( isset($_POST['delete_widget']) && $_POST['delete_widget'] ) { if ( !isset($wp_registered_widgets[$widget_id]) ) @@ -1591,32 +1815,87 @@ function wp_ajax_save_widget() { wp_die(); } +/** + * Ajax handler for saving a widget. + * + * @since 3.9.0 + */ +function wp_ajax_update_widget() { + global $wp_customize; + $wp_customize->widgets->wp_ajax_update_widget(); +} + +/** + * Ajax handler for uploading attachments + * + * @since 3.3.0 + */ function wp_ajax_upload_attachment() { check_ajax_referer( 'media-form' ); + /* + * This function does not use wp_send_json_success() / wp_send_json_error() + * as the html4 Plupload handler requires a text/html content-type for older IE. + * See https://core.trac.wordpress.org/ticket/31037 + */ + + if ( ! current_user_can( 'upload_files' ) ) { + echo wp_json_encode( array( + 'success' => false, + 'data' => array( + 'message' => __( "You don't have permission to upload files." ), + 'filename' => $_FILES['async-upload']['name'], + ) + ) ); - if ( ! current_user_can( 'upload_files' ) ) - wp_die( -1 ); + wp_die(); + } if ( isset( $_REQUEST['post_id'] ) ) { $post_id = $_REQUEST['post_id']; - if ( ! current_user_can( 'edit_post', $post_id ) ) - wp_die( -1 ); + if ( ! current_user_can( 'edit_post', $post_id ) ) { + echo wp_json_encode( array( + 'success' => false, + 'data' => array( + 'message' => __( "You don't have permission to attach files to this post." ), + 'filename' => $_FILES['async-upload']['name'], + ) + ) ); + + wp_die(); + } } else { $post_id = null; } $post_data = isset( $_REQUEST['post_data'] ) ? $_REQUEST['post_data'] : array(); + // If the context is custom header or background, make sure the uploaded file is an image. + if ( isset( $post_data['context'] ) && in_array( $post_data['context'], array( 'custom-header', 'custom-background' ) ) ) { + $wp_filetype = wp_check_filetype_and_ext( $_FILES['async-upload']['tmp_name'], $_FILES['async-upload']['name'], false ); + if ( ! wp_match_mime_types( 'image', $wp_filetype['type'] ) ) { + echo wp_json_encode( array( + 'success' => false, + 'data' => array( + 'message' => __( 'The uploaded file is not a valid image. Please try again.' ), + 'filename' => $_FILES['async-upload']['name'], + ) + ) ); + + wp_die(); + } + } + $attachment_id = media_handle_upload( 'async-upload', $post_id, $post_data ); if ( is_wp_error( $attachment_id ) ) { - echo json_encode( array( - 'type' => 'error', - 'data' => array( + echo wp_json_encode( array( + 'success' => false, + 'data' => array( 'message' => $attachment_id->get_error_message(), 'filename' => $_FILES['async-upload']['name'], - ), + ) ) ); + wp_die(); } @@ -1628,21 +1907,22 @@ function wp_ajax_upload_attachment() { update_post_meta( $attachment_id, '_wp_attachment_is_custom_header', $post_data['theme'] ); } - $post = get_post( $attachment_id ); + if ( ! $attachment = wp_prepare_attachment_for_js( $attachment_id ) ) + wp_die(); - echo json_encode( array( - 'type' => 'success', - 'data' => array( - 'id' => $attachment_id, - 'title' => esc_attr( $post->post_title ), - 'filename' => esc_html( basename( $post->guid ) ), - 'url' => wp_get_attachment_url( $attachment_id ), - 'meta' => wp_get_attachment_metadata( $attachment_id ), - ), + echo wp_json_encode( array( + 'success' => true, + 'data' => $attachment, ) ); + wp_die(); } +/** + * Ajax handler for image editing. + * + * @since 3.1.0 + */ function wp_ajax_image_editor() { $attachment_id = intval($_POST['postid']); if ( empty($attachment_id) || !current_user_can('edit_post', $attachment_id) ) @@ -1655,7 +1935,7 @@ function wp_ajax_image_editor() { switch ( $_POST['do'] ) { case 'save' : $msg = wp_save_image($attachment_id); - $msg = json_encode($msg); + $msg = wp_json_encode($msg); wp_die( $msg ); break; case 'scale' : @@ -1670,61 +1950,130 @@ function wp_ajax_image_editor() { wp_die(); } +/** + * Ajax handler for setting the featured image. + * + * @since 3.1.0 + */ function wp_ajax_set_post_thumbnail() { + $json = ! empty( $_REQUEST['json'] ); // New-style request + $post_ID = intval( $_POST['post_id'] ); - if ( !current_user_can( 'edit_post', $post_ID ) ) + if ( ! current_user_can( 'edit_post', $post_ID ) ) wp_die( -1 ); + $thumbnail_id = intval( $_POST['thumbnail_id'] ); - check_ajax_referer( "set_post_thumbnail-$post_ID" ); + if ( $json ) + check_ajax_referer( "update-post_$post_ID" ); + else + check_ajax_referer( "set_post_thumbnail-$post_ID" ); if ( $thumbnail_id == '-1' ) { - if ( delete_post_thumbnail( $post_ID ) ) - wp_die( _wp_post_thumbnail_html( null, $post_ID ) ); - else + if ( delete_post_thumbnail( $post_ID ) ) { + $return = _wp_post_thumbnail_html( null, $post_ID ); + $json ? wp_send_json_success( $return ) : wp_die( $return ); + } else { wp_die( 0 ); + } + } + + if ( set_post_thumbnail( $post_ID, $thumbnail_id ) ) { + $return = _wp_post_thumbnail_html( $thumbnail_id, $post_ID ); + $json ? wp_send_json_success( $return ) : wp_die( $return ); } - if ( set_post_thumbnail( $post_ID, $thumbnail_id ) ) - wp_die( _wp_post_thumbnail_html( $thumbnail_id, $post_ID ) ); wp_die( 0 ); } +/** + * AJAX handler for setting the featured image for an attachment. + * + * @since 4.0.0 + * + * @see set_post_thumbnail() + */ +function wp_ajax_set_attachment_thumbnail() { + if ( empty( $_POST['urls'] ) || ! is_array( $_POST['urls'] ) ) { + wp_send_json_error(); + } + + $thumbnail_id = (int) $_POST['thumbnail_id']; + if ( empty( $thumbnail_id ) ) { + wp_send_json_error(); + } + + $post_ids = array(); + // For each URL, try to find its corresponding post ID. + foreach ( $_POST['urls'] as $url ) { + $post_id = attachment_url_to_postid( $url ); + if ( ! empty( $post_id ) ) { + $post_ids[] = $post_id; + } + } + + if ( empty( $post_ids ) ) { + wp_send_json_error(); + } + + $success = 0; + // For each found attachment, set its thumbnail. + foreach ( $post_ids as $post_id ) { + if ( ! current_user_can( 'edit_post', $post_id ) ) { + continue; + } + + if ( set_post_thumbnail( $post_id, $thumbnail_id ) ) { + $success++; + } + } + + if ( 0 === $success ) { + wp_send_json_error(); + } else { + wp_send_json_success(); + } + + wp_send_json_error(); +} + +/** + * Ajax handler for date formatting. + * + * @since 3.1.0 + */ function wp_ajax_date_format() { - wp_die( date_i18n( sanitize_option( 'date_format', $_POST['date'] ) ) ); + wp_die( date_i18n( sanitize_option( 'date_format', wp_unslash( $_POST['date'] ) ) ) ); } +/** + * Ajax handler for time formatting. + * + * @since 3.1.0 + */ function wp_ajax_time_format() { - wp_die( date_i18n( sanitize_option( 'time_format', $_POST['date'] ) ) ); + wp_die( date_i18n( sanitize_option( 'time_format', wp_unslash( $_POST['date'] ) ) ) ); } +/** + * Ajax handler for saving posts from the fullscreen editor. + * + * @since 3.1.0 + */ function wp_ajax_wp_fullscreen_save_post() { $post_id = isset( $_POST['post_ID'] ) ? (int) $_POST['post_ID'] : 0; - $post = $post_type = null; + $post = null; if ( $post_id ) $post = get_post( $post_id ); - if ( $post ) - $post_type = $post->post_type; - elseif ( isset( $_POST['post_type'] ) && post_type_exists( $_POST['post_type'] ) ) - $post_type = $_POST['post_type']; - - check_ajax_referer('update-' . $post_type . '_' . $post_id, '_wpnonce'); + check_ajax_referer('update-post_' . $post_id, '_wpnonce'); $post_id = edit_post(); - if ( is_wp_error($post_id) ) { - if ( $post_id->get_error_message() ) - $message = $post_id->get_error_message(); - else - $message = __('Save failed'); - - echo json_encode( array( 'message' => $message, 'last_edited' => '' ) ); - wp_die(); - } else { - $message = __('Saved.'); + if ( is_wp_error( $post_id ) ) { + wp_send_json_error(); } if ( $post ) { @@ -1735,17 +2084,21 @@ function wp_ajax_wp_fullscreen_save_post() { $last_time = date_i18n( get_option('time_format') ); } - if ( $last_id = get_post_meta($post_id, '_edit_last', true) ) { - $last_user = get_userdata($last_id); + if ( $last_id = get_post_meta( $post_id, '_edit_last', true ) ) { + $last_user = get_userdata( $last_id ); $last_edited = sprintf( __('Last edited by %1$s on %2$s at %3$s'), esc_html( $last_user->display_name ), $last_date, $last_time ); } else { $last_edited = sprintf( __('Last edited on %1$s at %2$s'), $last_date, $last_time ); } - echo json_encode( array( 'message' => $message, 'last_edited' => $last_edited ) ); - wp_die(); + wp_send_json_success( array( 'last_edited' => $last_edited ) ); } +/** + * Ajax handler for removing a post lock. + * + * @since 3.1.0 + */ function wp_ajax_wp_remove_post_lock() { if ( empty( $_POST['post_ID'] ) || empty( $_POST['active_post_lock'] ) ) wp_die( 0 ); @@ -1753,7 +2106,7 @@ function wp_ajax_wp_remove_post_lock() { if ( ! $post = get_post( $post_id ) ) wp_die( 0 ); - check_ajax_referer( 'update-' . $post->post_type . '_' . $post_id ); + check_ajax_referer( 'update-post_' . $post_id ); if ( ! current_user_can( 'edit_post', $post_id ) ) wp_die( -1 ); @@ -1762,11 +2115,24 @@ function wp_ajax_wp_remove_post_lock() { if ( $active_lock[1] != get_current_user_id() ) wp_die( 0 ); - $new_lock = ( time() - apply_filters( 'wp_check_post_lock_window', AUTOSAVE_INTERVAL * 2 ) + 5 ) . ':' . $active_lock[1]; + /** + * Filter the post lock window duration. + * + * @since 3.3.0 + * + * @param int $interval The interval in seconds the post lock duration + * should last, plus 5 seconds. Default 150. + */ + $new_lock = ( time() - apply_filters( 'wp_check_post_lock_window', 150 ) + 5 ) . ':' . $active_lock[1]; update_post_meta( $post_id, '_edit_lock', $new_lock, implode( ':', $active_lock ) ); wp_die( 1 ); } +/** + * Ajax handler for dismissing a WordPress pointer. + * + * @since 3.1.0 + */ function wp_ajax_dismiss_wp_pointer() { $pointer = $_POST['pointer']; if ( $pointer != sanitize_key( $pointer ) ) @@ -1785,3 +2151,681 @@ function wp_ajax_dismiss_wp_pointer() { update_user_meta( get_current_user_id(), 'dismissed_wp_pointers', $dismissed ); wp_die( 1 ); } + +/** + * Ajax handler for getting an attachment. + * + * @since 3.5.0 + */ +function wp_ajax_get_attachment() { + if ( ! isset( $_REQUEST['id'] ) ) + wp_send_json_error(); + + if ( ! $id = absint( $_REQUEST['id'] ) ) + wp_send_json_error(); + + if ( ! $post = get_post( $id ) ) + wp_send_json_error(); + + if ( 'attachment' != $post->post_type ) + wp_send_json_error(); + + if ( ! current_user_can( 'upload_files' ) ) + wp_send_json_error(); + + if ( ! $attachment = wp_prepare_attachment_for_js( $id ) ) + wp_send_json_error(); + + wp_send_json_success( $attachment ); +} + +/** + * Ajax handler for querying attachments. + * + * @since 3.5.0 + */ +function wp_ajax_query_attachments() { + if ( ! current_user_can( 'upload_files' ) ) + wp_send_json_error(); + + $query = isset( $_REQUEST['query'] ) ? (array) $_REQUEST['query'] : array(); + $query = array_intersect_key( $query, array_flip( array( + 's', 'order', 'orderby', 'posts_per_page', 'paged', 'post_mime_type', + 'post_parent', 'post__in', 'post__not_in', 'year', 'monthnum' + ) ) ); + + $query['post_type'] = 'attachment'; + if ( MEDIA_TRASH + && ! empty( $_REQUEST['query']['post_status'] ) + && 'trash' === $_REQUEST['query']['post_status'] ) { + $query['post_status'] = 'trash'; + } else { + $query['post_status'] = 'inherit'; + } + + if ( current_user_can( get_post_type_object( 'attachment' )->cap->read_private_posts ) ) + $query['post_status'] .= ',private'; + + /** + * Filter the arguments passed to WP_Query during an AJAX + * call for querying attachments. + * + * @since 3.7.0 + * + * @see WP_Query::parse_query() + * + * @param array $query An array of query variables. + */ + $query = apply_filters( 'ajax_query_attachments_args', $query ); + $query = new WP_Query( $query ); + + $posts = array_map( 'wp_prepare_attachment_for_js', $query->posts ); + $posts = array_filter( $posts ); + + wp_send_json_success( $posts ); +} + +/** + * Ajax handler for updating attachment attributes. + * + * @since 3.5.0 + */ +function wp_ajax_save_attachment() { + if ( ! isset( $_REQUEST['id'] ) || ! isset( $_REQUEST['changes'] ) ) + wp_send_json_error(); + + if ( ! $id = absint( $_REQUEST['id'] ) ) + wp_send_json_error(); + + check_ajax_referer( 'update-post_' . $id, 'nonce' ); + + if ( ! current_user_can( 'edit_post', $id ) ) + wp_send_json_error(); + + $changes = $_REQUEST['changes']; + $post = get_post( $id, ARRAY_A ); + + if ( 'attachment' != $post['post_type'] ) + wp_send_json_error(); + + if ( isset( $changes['title'] ) ) + $post['post_title'] = $changes['title']; + + if ( isset( $changes['caption'] ) ) + $post['post_excerpt'] = $changes['caption']; + + if ( isset( $changes['description'] ) ) + $post['post_content'] = $changes['description']; + + if ( MEDIA_TRASH && isset( $changes['status'] ) ) + $post['post_status'] = $changes['status']; + + if ( isset( $changes['alt'] ) ) { + $alt = wp_unslash( $changes['alt'] ); + if ( $alt != get_post_meta( $id, '_wp_attachment_image_alt', true ) ) { + $alt = wp_strip_all_tags( $alt, true ); + update_post_meta( $id, '_wp_attachment_image_alt', wp_slash( $alt ) ); + } + } + + if ( 0 === strpos( $post['post_mime_type'], 'audio/' ) ) { + $changed = false; + $id3data = wp_get_attachment_metadata( $post['ID'] ); + if ( ! is_array( $id3data ) ) { + $changed = true; + $id3data = array(); + } + foreach ( wp_get_attachment_id3_keys( (object) $post, 'edit' ) as $key => $label ) { + if ( isset( $changes[ $key ] ) ) { + $changed = true; + $id3data[ $key ] = sanitize_text_field( wp_unslash( $changes[ $key ] ) ); + } + } + + if ( $changed ) { + wp_update_attachment_metadata( $id, $id3data ); + } + } + + if ( MEDIA_TRASH && isset( $changes['status'] ) && 'trash' === $changes['status'] ) { + wp_delete_post( $id ); + } else { + wp_update_post( $post ); + } + + wp_send_json_success(); +} + +/** + * Ajax handler for saving backwards compatible attachment attributes. + * + * @since 3.5.0 + */ +function wp_ajax_save_attachment_compat() { + if ( ! isset( $_REQUEST['id'] ) ) + wp_send_json_error(); + + if ( ! $id = absint( $_REQUEST['id'] ) ) + wp_send_json_error(); + + if ( empty( $_REQUEST['attachments'] ) || empty( $_REQUEST['attachments'][ $id ] ) ) + wp_send_json_error(); + $attachment_data = $_REQUEST['attachments'][ $id ]; + + check_ajax_referer( 'update-post_' . $id, 'nonce' ); + + if ( ! current_user_can( 'edit_post', $id ) ) + wp_send_json_error(); + + $post = get_post( $id, ARRAY_A ); + + if ( 'attachment' != $post['post_type'] ) + wp_send_json_error(); + + /** This filter is documented in wp-admin/includes/media.php */ + $post = apply_filters( 'attachment_fields_to_save', $post, $attachment_data ); + + if ( isset( $post['errors'] ) ) { + $errors = $post['errors']; // @todo return me and display me! + unset( $post['errors'] ); + } + + wp_update_post( $post ); + + foreach ( get_attachment_taxonomies( $post ) as $taxonomy ) { + if ( isset( $attachment_data[ $taxonomy ] ) ) + wp_set_object_terms( $id, array_map( 'trim', preg_split( '/,+/', $attachment_data[ $taxonomy ] ) ), $taxonomy, false ); + } + + if ( ! $attachment = wp_prepare_attachment_for_js( $id ) ) + wp_send_json_error(); + + wp_send_json_success( $attachment ); +} + +/** + * Ajax handler for saving the attachment order. + * + * @since 3.5.0 + */ +function wp_ajax_save_attachment_order() { + if ( ! isset( $_REQUEST['post_id'] ) ) + wp_send_json_error(); + + if ( ! $post_id = absint( $_REQUEST['post_id'] ) ) + wp_send_json_error(); + + if ( empty( $_REQUEST['attachments'] ) ) + wp_send_json_error(); + + check_ajax_referer( 'update-post_' . $post_id, 'nonce' ); + + $attachments = $_REQUEST['attachments']; + + if ( ! current_user_can( 'edit_post', $post_id ) ) + wp_send_json_error(); + + foreach ( $attachments as $attachment_id => $menu_order ) { + if ( ! current_user_can( 'edit_post', $attachment_id ) ) + continue; + if ( ! $attachment = get_post( $attachment_id ) ) + continue; + if ( 'attachment' != $attachment->post_type ) + continue; + + wp_update_post( array( 'ID' => $attachment_id, 'menu_order' => $menu_order ) ); + } + + wp_send_json_success(); +} + +/** + * Ajax handler for sending an attachment to the editor. + * + * Generates the HTML to send an attachment to the editor. + * Backwards compatible with the media_send_to_editor filter + * and the chain of filters that follow. + * + * @since 3.5.0 + */ +function wp_ajax_send_attachment_to_editor() { + check_ajax_referer( 'media-send-to-editor', 'nonce' ); + + $attachment = wp_unslash( $_POST['attachment'] ); + + $id = intval( $attachment['id'] ); + + if ( ! $post = get_post( $id ) ) + wp_send_json_error(); + + if ( 'attachment' != $post->post_type ) + wp_send_json_error(); + + if ( current_user_can( 'edit_post', $id ) ) { + // If this attachment is unattached, attach it. Primarily a back compat thing. + if ( 0 == $post->post_parent && $insert_into_post_id = intval( $_POST['post_id'] ) ) { + wp_update_post( array( 'ID' => $id, 'post_parent' => $insert_into_post_id ) ); + } + } + + $rel = $url = ''; + $html = isset( $attachment['post_title'] ) ? $attachment['post_title'] : ''; + if ( ! empty( $attachment['url'] ) ) { + $url = $attachment['url']; + if ( strpos( $url, 'attachment_id') || get_attachment_link( $id ) == $url ) + $rel = ' rel="attachment wp-att-' . $id . '"'; + $html = '' . $html . ''; + } + + remove_filter( 'media_send_to_editor', 'image_media_send_to_editor' ); + + if ( 'image' === substr( $post->post_mime_type, 0, 5 ) ) { + $align = isset( $attachment['align'] ) ? $attachment['align'] : 'none'; + $size = isset( $attachment['image-size'] ) ? $attachment['image-size'] : 'medium'; + $alt = isset( $attachment['image_alt'] ) ? $attachment['image_alt'] : ''; + $caption = isset( $attachment['post_excerpt'] ) ? $attachment['post_excerpt'] : ''; + $title = ''; // We no longer insert title tags into tags, as they are redundant. + $html = get_image_send_to_editor( $id, $caption, $title, $align, $url, (bool) $rel, $size, $alt ); + } elseif ( 'video' === substr( $post->post_mime_type, 0, 5 ) || 'audio' === substr( $post->post_mime_type, 0, 5 ) ) { + $html = stripslashes_deep( $_POST['html'] ); + } + + /** This filter is documented in wp-admin/includes/media.php */ + $html = apply_filters( 'media_send_to_editor', $html, $id, $attachment ); + + wp_send_json_success( $html ); +} + +/** + * Ajax handler for sending a link to the editor. + * + * Generates the HTML to send a non-image embed link to the editor. + * + * Backwards compatible with the following filters: + * - file_send_to_editor_url + * - audio_send_to_editor_url + * - video_send_to_editor_url + * + * @since 3.5.0 + */ +function wp_ajax_send_link_to_editor() { + global $post, $wp_embed; + + check_ajax_referer( 'media-send-to-editor', 'nonce' ); + + if ( ! $src = wp_unslash( $_POST['src'] ) ) + wp_send_json_error(); + + if ( ! strpos( $src, '://' ) ) + $src = 'http://' . $src; + + if ( ! $src = esc_url_raw( $src ) ) + wp_send_json_error(); + + if ( ! $title = trim( wp_unslash( $_POST['title'] ) ) ) + $title = wp_basename( $src ); + + $post = get_post( isset( $_POST['post_id'] ) ? $_POST['post_id'] : 0 ); + + // Ping WordPress for an embed. + $check_embed = $wp_embed->run_shortcode( '[embed]'. $src .'[/embed]' ); + + // Fallback that WordPress creates when no oEmbed was found. + $fallback = $wp_embed->maybe_make_link( $src ); + + if ( $check_embed !== $fallback ) { + // TinyMCE view for [embed] will parse this + $html = '[embed]' . $src . '[/embed]'; + } elseif ( $title ) { + $html = '' . $title . ''; + } else { + $html = ''; + } + + // Figure out what filter to run: + $type = 'file'; + if ( ( $ext = preg_replace( '/^.+?\.([^.]+)$/', '$1', $src ) ) && ( $ext_type = wp_ext2type( $ext ) ) + && ( 'audio' == $ext_type || 'video' == $ext_type ) ) + $type = $ext_type; + + /** This filter is documented in wp-admin/includes/media.php */ + $html = apply_filters( $type . '_send_to_editor_url', $html, $src, $title ); + + wp_send_json_success( $html ); +} + +/** + * Ajax handler for the Heartbeat API. + * + * Runs when the user is logged in. + * + * @since 3.6.0 + */ +function wp_ajax_heartbeat() { + if ( empty( $_POST['_nonce'] ) ) + wp_send_json_error(); + + $response = array(); + + if ( false === wp_verify_nonce( $_POST['_nonce'], 'heartbeat-nonce' ) ) { + // User is logged in but nonces have expired. + $response['nonces_expired'] = true; + wp_send_json($response); + } + + // screen_id is the same as $current_screen->id and the JS global 'pagenow'. + if ( ! empty($_POST['screen_id']) ) + $screen_id = sanitize_key($_POST['screen_id']); + else + $screen_id = 'front'; + + if ( ! empty($_POST['data']) ) { + $data = wp_unslash( (array) $_POST['data'] ); + + /** + * Filter the Heartbeat response received. + * + * @since 3.6.0 + * + * @param array|object $response The Heartbeat response object or array. + * @param array $data The $_POST data sent. + * @param string $screen_id The screen id. + */ + $response = apply_filters( 'heartbeat_received', $response, $data, $screen_id ); + } + + /** + * Filter the Heartbeat response sent. + * + * @since 3.6.0 + * + * @param array|object $response The Heartbeat response object or array. + * @param string $screen_id The screen id. + */ + $response = apply_filters( 'heartbeat_send', $response, $screen_id ); + + /** + * Fires when Heartbeat ticks in logged-in environments. + * + * Allows the transport to be easily replaced with long-polling. + * + * @since 3.6.0 + * + * @param array|object $response The Heartbeat response object or array. + * @param string $screen_id The screen id. + */ + do_action( 'heartbeat_tick', $response, $screen_id ); + + // Send the current time according to the server + $response['server_time'] = time(); + + wp_send_json($response); +} + +/** + * Ajax handler for getting revision diffs. + * + * @since 3.6.0 + */ +function wp_ajax_get_revision_diffs() { + require ABSPATH . 'wp-admin/includes/revision.php'; + + if ( ! $post = get_post( (int) $_REQUEST['post_id'] ) ) + wp_send_json_error(); + + if ( ! current_user_can( 'read_post', $post->ID ) ) + wp_send_json_error(); + + // Really just pre-loading the cache here. + if ( ! $revisions = wp_get_post_revisions( $post->ID, array( 'check_enabled' => false ) ) ) + wp_send_json_error(); + + $return = array(); + @set_time_limit( 0 ); + + foreach ( $_REQUEST['compare'] as $compare_key ) { + list( $compare_from, $compare_to ) = explode( ':', $compare_key ); // from:to + + $return[] = array( + 'id' => $compare_key, + 'fields' => wp_get_revision_ui_diff( $post, $compare_from, $compare_to ), + ); + } + wp_send_json_success( $return ); +} + +/** + * Ajax handler for auto-saving the selected color scheme for + * a user's own profile. + * + * @since 3.8.0 + */ +function wp_ajax_save_user_color_scheme() { + global $_wp_admin_css_colors; + + check_ajax_referer( 'save-color-scheme', 'nonce' ); + + $color_scheme = sanitize_key( $_POST['color_scheme'] ); + + if ( ! isset( $_wp_admin_css_colors[ $color_scheme ] ) ) { + wp_send_json_error(); + } + + update_user_meta( get_current_user_id(), 'admin_color', $color_scheme ); + wp_send_json_success(); +} + +/** + * Ajax handler for getting themes from themes_api(). + * + * @since 3.9.0 + */ +function wp_ajax_query_themes() { + global $themes_allowedtags, $theme_field_defaults; + + if ( ! current_user_can( 'install_themes' ) ) { + wp_send_json_error(); + } + + $args = wp_parse_args( wp_unslash( $_REQUEST['request'] ), array( + 'per_page' => 20, + 'fields' => $theme_field_defaults + ) ); + + $old_filter = isset( $args['browse'] ) ? $args['browse'] : 'search'; + + /** This filter is documented in wp-admin/includes/class-wp-theme-install-list-table.php */ + $args = apply_filters( 'install_themes_table_api_args_' . $old_filter, $args ); + + $api = themes_api( 'query_themes', $args ); + + if ( is_wp_error( $api ) ) { + wp_send_json_error(); + } + + $update_php = network_admin_url( 'update.php?action=install-theme' ); + foreach ( $api->themes as &$theme ) { + $theme->install_url = add_query_arg( array( + 'theme' => $theme->slug, + '_wpnonce' => wp_create_nonce( 'install-theme_' . $theme->slug ) + ), $update_php ); + + $theme->name = wp_kses( $theme->name, $themes_allowedtags ); + $theme->author = wp_kses( $theme->author, $themes_allowedtags ); + $theme->version = wp_kses( $theme->version, $themes_allowedtags ); + $theme->description = wp_kses( $theme->description, $themes_allowedtags ); + $theme->num_ratings = sprintf( _n( '(based on %s rating)', '(based on %s ratings)', $theme->num_ratings ), number_format_i18n( $theme->num_ratings ) ); + $theme->preview_url = set_url_scheme( $theme->preview_url ); + } + + wp_send_json_success( $api ); +} + +/** + * Apply [embed] AJAX handlers to a string. + * + * @since 4.0.0 + * + * @global WP_Post $post Global $post. + * @global WP_Embed $wp_embed Embed API instance. + */ +function wp_ajax_parse_embed() { + global $post, $wp_embed; + + if ( ! $post = get_post( (int) $_POST['post_ID'] ) ) { + wp_send_json_error(); + } + + if ( empty( $_POST['shortcode'] ) || ! current_user_can( 'edit_post', $post->ID ) ) { + wp_send_json_error(); + } + + $shortcode = wp_unslash( $_POST['shortcode'] ); + $url = str_replace( '[embed]', '', str_replace( '[/embed]', '', $shortcode ) ); + $parsed = false; + setup_postdata( $post ); + + $wp_embed->return_false_on_fail = true; + + if ( is_ssl() && preg_match( '%^\\[embed[^\\]]*\\]http://%i', $shortcode ) ) { + // Admin is ssl and the user pasted non-ssl URL. + // Check if the provider supports ssl embeds and use that for the preview. + $ssl_shortcode = preg_replace( '%^(\\[embed[^\\]]*\\])http://%i', '$1https://', $shortcode ); + $parsed = $wp_embed->run_shortcode( $ssl_shortcode ); + + if ( ! $parsed ) { + $no_ssl_support = true; + } + } + + if ( ! $parsed ) { + $parsed = $wp_embed->run_shortcode( $shortcode ); + } + + if ( ! $parsed ) { + wp_send_json_error( array( + 'type' => 'not-embeddable', + 'message' => sprintf( __( '%s failed to embed.' ), '' . esc_html( $url ) . '' ), + ) ); + } + + if ( has_shortcode( $parsed, 'audio' ) || has_shortcode( $parsed, 'video' ) ) { + $styles = ''; + $mce_styles = wpview_media_sandbox_styles(); + foreach ( $mce_styles as $style ) { + $styles .= sprintf( '', $style ); + } + + $html = do_shortcode( $parsed ); + + global $wp_scripts; + if ( ! empty( $wp_scripts ) ) { + $wp_scripts->done = array(); + } + ob_start(); + wp_print_scripts( 'wp-mediaelement' ); + $scripts = ob_get_clean(); + + $parsed = $styles . $html . $scripts; + } + + + if ( ! empty( $no_ssl_support ) || ( is_ssl() && ( preg_match( '%<(iframe|script|embed) [^>]*src="http://%', $parsed ) || + preg_match( '%]*href="http://%', $parsed ) ) ) ) { + // Admin is ssl and the embed is not. Iframes, scripts, and other "active content" will be blocked. + wp_send_json_error( array( + 'type' => 'not-ssl', + 'message' => __( 'This preview is unavailable in the editor.' ), + ) ); + } + + wp_send_json_success( array( + 'body' => $parsed + ) ); +} + +function wp_ajax_parse_media_shortcode() { + global $post, $wp_scripts; + + if ( ! $post = get_post( (int) $_POST['post_ID'] ) ) { + wp_send_json_error(); + } + + if ( empty( $_POST['shortcode'] ) || ! current_user_can( 'edit_post', $post->ID ) ) { + wp_send_json_error(); + } + + setup_postdata( $post ); + $shortcode = do_shortcode( wp_unslash( $_POST['shortcode'] ) ); + + if ( empty( $shortcode ) ) { + wp_send_json_error( array( + 'type' => 'no-items', + 'message' => __( 'No items found.' ), + ) ); + } + + $head = ''; + $styles = wpview_media_sandbox_styles(); + + foreach ( $styles as $style ) { + $head .= ''; + } + + if ( ! empty( $wp_scripts ) ) { + $wp_scripts->done = array(); + } + + ob_start(); + + echo $shortcode; + + if ( 'playlist' === $_REQUEST['type'] ) { + wp_underscore_playlist_templates(); + + wp_print_scripts( 'wp-playlist' ); + } else { + wp_print_scripts( 'wp-mediaelement' ); + } + + wp_send_json_success( array( + 'head' => $head, + 'body' => ob_get_clean() + ) ); +} + +/** + * AJAX handler for destroying multiple open sessions for a user. + * + * @since 4.1.0 + */ +function wp_ajax_destroy_sessions() { + + $user = get_userdata( (int) $_POST['user_id'] ); + if ( $user ) { + if ( ! current_user_can( 'edit_user', $user->ID ) ) { + $user = false; + } elseif ( ! wp_verify_nonce( $_POST['nonce'], 'update-user_' . $user->ID ) ) { + $user = false; + } + } + + if ( ! $user ) { + wp_send_json_error( array( + 'message' => __( 'Could not log out user sessions. Please try again.' ), + ) ); + } + + $sessions = WP_Session_Tokens::get_instance( $user->ID ); + + if ( $user->ID === get_current_user_id() ) { + $sessions->destroy_others( wp_get_session_token() ); + $message = __( 'You are now logged out everywhere else.' ); + } else { + $sessions->destroy_all(); + /* translators: 1: User's display name. */ + $message = sprintf( __( '%s has been logged out.' ), $user->display_name ); + } + + wp_send_json_success( array( 'message' => $message ) ); +}