<?php /** * Administration API: Core Ajax handlers * * @package WordPress * @subpackage Administration * @since 2.1.0 */ // // No-privilege Ajax handlers. // /** * Handles the Heartbeat API in the no-privilege context via AJAX . * * Runs when the user is not logged in. * * @since 3.6.0 */ function wp_ajax_nopriv_heartbeat() { $response = array(); // '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'] ); /** * Filters Heartbeat Ajax response in no-privilege environments. * * @since 3.6.0 * * @param array $response The no-priv Heartbeat response. * @param array $data The $_POST data sent. * @param string $screen_id The screen ID. */ $response = apply_filters( 'heartbeat_nopriv_received', $response, $data, $screen_id ); } /** * Filters Heartbeat Ajax response in no-privilege environments when no data is passed. * * @since 3.6.0 * * @param array $response The no-priv Heartbeat response. * @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 $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. // /** * Handles fetching a list table via AJAX. * * @since 3.1.0 */ function wp_ajax_fetch_list() { $list_class = $_GET['list_args']['class']; check_ajax_referer( "fetch-list-$list_class", '_ajax_fetch_list_nonce' ); $wp_list_table = _get_list_table( $list_class, array( 'screen' => $_GET['list_args']['screen']['id'] ) ); if ( ! $wp_list_table ) { wp_die( 0 ); } if ( ! $wp_list_table->ajax_user_can() ) { wp_die( -1 ); } $wp_list_table->ajax_response(); wp_die( 0 ); } /** * Handles tag search via AJAX. * * @since 3.1.0 */ function wp_ajax_ajax_tag_search() { if ( ! isset( $_GET['tax'] ) ) { wp_die( 0 ); } $taxonomy = sanitize_key( $_GET['tax'] ); $taxonomy_object = get_taxonomy( $taxonomy ); if ( ! $taxonomy_object ) { wp_die( 0 ); } if ( ! current_user_can( $taxonomy_object->cap->assign_terms ) ) { wp_die( -1 ); } $search = wp_unslash( $_GET['q'] ); $comma = _x( ',', 'tag delimiter' ); if ( ',' !== $comma ) { $search = str_replace( $comma, ',', $search ); } if ( str_contains( $search, ',' ) ) { $search = explode( ',', $search ); $search = $search[ count( $search ) - 1 ]; } $search = trim( $search ); /** * Filters 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 WP_Taxonomy $taxonomy_object The taxonomy object. * @param string $search The search term. */ $term_search_min_chars = (int) apply_filters( 'term_search_min_chars', 2, $taxonomy_object, $search ); /* * Require $term_search_min_chars chars for matching (default: 2) * ensure it's a non-negative, non-zero integer. */ if ( ( 0 === $term_search_min_chars ) || ( strlen( $search ) < $term_search_min_chars ) ) { wp_die(); } $results = get_terms( array( 'taxonomy' => $taxonomy, 'name__like' => $search, 'fields' => 'names', 'hide_empty' => false, 'number' => isset( $_GET['number'] ) ? (int) $_GET['number'] : 0, ) ); /** * Filters the Ajax term search results. * * @since 6.1.0 * * @param string[] $results Array of term names. * @param WP_Taxonomy $taxonomy_object The taxonomy object. * @param string $search The search term. */ $results = apply_filters( 'ajax_term_search_results', $results, $taxonomy_object, $search ); echo implode( "\n", $results ); wp_die(); } /** * Handles compression testing via AJAX. * * @since 3.1.0 */ function wp_ajax_wp_compression_test() { if ( ! current_user_can( 'manage_options' ) ) { wp_die( -1 ); } if ( ini_get( 'zlib.output_compression' ) || 'ob_gzhandler' === ini_get( 'output_handler' ) ) { // Use `update_option()` on single site to mark the option for autoloading. if ( is_multisite() ) { update_site_option( 'can_compress_scripts', 0 ); } else { update_option( 'can_compress_scripts', 0, true ); } wp_die( 0 ); } if ( isset( $_GET['test'] ) ) { header( 'Expires: Wed, 11 Jan 1984 05:00:00 GMT' ); header( 'Last-Modified: ' . gmdate( 'D, d M Y H:i:s' ) . ' GMT' ); header( 'Cache-Control: no-cache, must-revalidate, max-age=0' ); header( 'Content-Type: application/javascript; charset=UTF-8' ); $force_gzip = ( defined( 'ENFORCE_GZIP' ) && ENFORCE_GZIP ); $test_str = '"wpCompressionTest Lorem ipsum dolor sit amet consectetuer mollis sapien urna ut a. Eu nonummy condimentum fringilla tempor pretium platea vel nibh netus Maecenas. Hac molestie amet justo quis pellentesque est ultrices interdum nibh Morbi. Cras mattis pretium Phasellus ante ipsum ipsum ut sociis Suspendisse Lorem. Ante et non molestie. Porta urna Vestibulum egestas id congue nibh eu risus gravida sit. Ac augue auctor Ut et non a elit massa id sodales. Elit eu Nulla at nibh adipiscing mattis lacus mauris at tempus. Netus nibh quis suscipit nec feugiat eget sed lorem et urna. Pellentesque lacus at ut massa consectetuer ligula ut auctor semper Pellentesque. Ut metus massa nibh quam Curabitur molestie nec mauris congue. Volutpat molestie elit justo facilisis neque ac risus Ut nascetur tristique. Vitae sit lorem tellus et quis Phasellus lacus tincidunt nunc Fusce. Pharetra wisi Suspendisse mus sagittis libero lacinia Integer consequat ac Phasellus. Et urna ac cursus tortor aliquam Aliquam amet tellus volutpat Vestibulum. Justo interdum condimentum In augue congue tellus sollicitudin Quisque quis nibh."'; if ( '1' === $_GET['test'] ) { echo $test_str; wp_die(); } elseif ( '2' === $_GET['test'] ) { if ( ! isset( $_SERVER['HTTP_ACCEPT_ENCODING'] ) ) { wp_die( -1 ); } if ( false !== stripos( $_SERVER['HTTP_ACCEPT_ENCODING'], 'deflate' ) && function_exists( 'gzdeflate' ) && ! $force_gzip ) { header( 'Content-Encoding: deflate' ); $out = gzdeflate( $test_str, 1 ); } elseif ( false !== stripos( $_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip' ) && function_exists( 'gzencode' ) ) { header( 'Content-Encoding: gzip' ); $out = gzencode( $test_str, 1 ); } else { wp_die( -1 ); } echo $out; wp_die(); } elseif ( 'no' === $_GET['test'] ) { check_ajax_referer( 'update_can_compress_scripts' ); // Use `update_option()` on single site to mark the option for autoloading. if ( is_multisite() ) { update_site_option( 'can_compress_scripts', 0 ); } else { update_option( 'can_compress_scripts', 0, true ); } } elseif ( 'yes' === $_GET['test'] ) { check_ajax_referer( 'update_can_compress_scripts' ); // Use `update_option()` on single site to mark the option for autoloading. if ( is_multisite() ) { update_site_option( 'can_compress_scripts', 1 ); } else { update_option( 'can_compress_scripts', 1, true ); } } } wp_die( 0 ); } /** * Handles image editor previews via AJAX. * * @since 3.1.0 */ function wp_ajax_imgedit_preview() { $post_id = (int) $_GET['postid']; if ( empty( $post_id ) || ! current_user_can( 'edit_post', $post_id ) ) { wp_die( -1 ); } check_ajax_referer( "image_editor-$post_id" ); require_once ABSPATH . 'wp-admin/includes/image-edit.php'; if ( ! stream_preview_image( $post_id ) ) { wp_die( -1 ); } wp_die(); } /** * Handles oEmbed caching via AJAX. * * @since 3.1.0 * * @global WP_Embed $wp_embed WordPress Embed object. */ function wp_ajax_oembed_cache() { $GLOBALS['wp_embed']->cache_oembed( $_GET['post'] ); wp_die( 0 ); } /** * Handles user autocomplete via AJAX. * * @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 ( ! current_user_can( 'manage_network_users' ) && ! apply_filters( 'autocomplete_users_for_site_admins', false ) ) { wp_die( -1 ); } $return = array(); /* * Check the type of request. * Current allowed values are `add` and `search`. */ if ( isset( $_REQUEST['autocomplete_type'] ) && 'search' === $_REQUEST['autocomplete_type'] ) { $type = $_REQUEST['autocomplete_type']; } 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'] ) ) { $id = absint( $_REQUEST['site_id'] ); } else { $id = get_current_blog_id(); } $include_blog_users = ( 'search' === $type ? get_users( array( 'blog_id' => $id, 'fields' => 'ID', ) ) : array() ); $exclude_blog_users = ( 'add' === $type ? get_users( array( 'blog_id' => $id, 'fields' => 'ID', ) ) : array() ); $users = get_users( array( 'blog_id' => false, 'search' => '*' . $_REQUEST['term'] . '*', 'include' => $include_blog_users, 'exclude' => $exclude_blog_users, 'search_columns' => array( 'user_login', 'user_nicename', 'user_email' ), ) ); foreach ( $users as $user ) { $return[] = array( /* translators: 1: User login, 2: User email address. */ 'label' => sprintf( _x( '%1$s (%2$s)', 'user autocomplete result' ), $user->user_login, $user->user_email ), 'value' => $user->$field, ); } wp_die( wp_json_encode( $return ) ); } /** * Handles Ajax requests for community events * * @since 4.8.0 */ function wp_ajax_get_community_events() { require_once ABSPATH . 'wp-admin/includes/class-wp-community-events.php'; check_ajax_referer( 'community_events' ); $search = isset( $_POST['location'] ) ? wp_unslash( $_POST['location'] ) : ''; $timezone = isset( $_POST['timezone'] ) ? wp_unslash( $_POST['timezone'] ) : ''; $user_id = get_current_user_id(); $saved_location = get_user_option( 'community-events-location', $user_id ); $events_client = new WP_Community_Events( $user_id, $saved_location ); $events = $events_client->get_events( $search, $timezone ); $ip_changed = false; if ( is_wp_error( $events ) ) { wp_send_json_error( array( 'error' => $events->get_error_message(), ) ); } else { if ( empty( $saved_location['ip'] ) && ! empty( $events['location']['ip'] ) ) { $ip_changed = true; } elseif ( isset( $saved_location['ip'] ) && ! empty( $events['location']['ip'] ) && $saved_location['ip'] !== $events['location']['ip'] ) { $ip_changed = true; } /* * The location should only be updated when it changes. The API doesn't always return * a full location; sometimes it's missing the description or country. The location * that was saved during the initial request is known to be good and complete, though. * It should be left intact until the user explicitly changes it (either by manually * searching for a new location, or by changing their IP address). * * If the location was updated with an incomplete response from the API, then it could * break assumptions that the UI makes (e.g., that there will always be a description * that corresponds to a latitude/longitude location). * * The location is stored network-wide, so that the user doesn't have to set it on each site. */ if ( $ip_changed || $search ) { update_user_meta( $user_id, 'community-events-location', $events['location'] ); } wp_send_json_success( $events ); } } /** * Handles dashboard widgets via AJAX. * * @since 3.4.0 */ function wp_ajax_dashboard_widgets() { require_once ABSPATH . 'wp-admin/includes/dashboard.php'; $pagenow = $_GET['pagenow']; if ( 'dashboard-user' === $pagenow || 'dashboard-network' === $pagenow || 'dashboard' === $pagenow ) { set_current_screen( $pagenow ); } switch ( $_GET['widget'] ) { case 'dashboard_primary': wp_dashboard_primary(); break; } wp_die(); } /** * Handles Customizer preview logged-in status via AJAX. * * @since 3.4.0 */ function wp_ajax_logged_in() { wp_die( 1 ); } // // 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 2.7.0 * @access private * * @param int $comment_id * @param int $delta */ function _wp_ajax_delete_comment_response( $comment_id, $delta = -1 ) { $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'] ) ? sanitize_url( $_POST['_url'] ) : ''; // JS didn't send us everything we need to know. Just die with success message. if ( ! $total || ! $per_page || ! $page || ! $url ) { $time = time(); $comment = get_comment( $comment_id ); $comment_status = ''; $comment_link = ''; if ( $comment ) { $comment_status = $comment->comment_approved; } if ( 1 === (int) $comment_status ) { $comment_link = get_comment_link( $comment ); } $counts = wp_count_comments(); $x = new WP_Ajax_Response( array( 'what' => 'comment', // Here for completeness - not used. 'id' => $comment_id, 'supplemental' => array( 'status' => $comment_status, 'postId' => $comment ? $comment->comment_post_ID : '', 'time' => $time, 'in_moderation' => $counts->moderated, 'i18n_comments_text' => sprintf( /* translators: %s: Number of comments. */ _n( '%s Comment', '%s Comments', $counts->approved ), number_format_i18n( $counts->approved ) ), 'i18n_moderation_text' => sprintf( /* translators: %s: Number of comments. */ _n( '%s Comment in moderation', '%s Comments in moderation', $counts->moderated ), number_format_i18n( $counts->moderated ) ), 'comment_link' => $comment_link, ), ) ); $x->send(); } $total += $delta; if ( $total < 0 ) { $total = 0; } // Only do the expensive stuff on a page-break, and about 1 other time per page. if ( 0 === $total % $per_page || 1 === mt_rand( 1, $per_page ) ) { $post_id = 0; // What type of comment count are we looking for? $status = 'all'; $parsed = parse_url( $url ); if ( isset( $parsed['query'] ) ) { parse_str( $parsed['query'], $query_vars ); if ( ! empty( $query_vars['comment_status'] ) ) { $status = $query_vars['comment_status']; } if ( ! empty( $query_vars['p'] ) ) { $post_id = (int) $query_vars['p']; } if ( ! empty( $query_vars['comment_type'] ) ) { $type = $query_vars['comment_type']; } } if ( empty( $type ) ) { // Only use the comment count if not filtering by a comment_type. $comment_count = wp_count_comments( $post_id ); // 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. } // The time since the last comment count. $time = time(); $comment = get_comment( $comment_id ); $counts = wp_count_comments(); $x = new WP_Ajax_Response( array( 'what' => 'comment', 'id' => $comment_id, 'supplemental' => array( 'status' => $comment ? $comment->comment_approved : '', 'postId' => $comment ? $comment->comment_post_ID : '', /* translators: %s: Number of comments. */ 'total_items_i18n' => sprintf( _n( '%s item', '%s items', $total ), number_format_i18n( $total ) ), 'total_pages' => (int) ceil( $total / $per_page ), 'total_pages_i18n' => number_format_i18n( (int) ceil( $total / $per_page ) ), 'total' => $total, 'time' => $time, 'in_moderation' => $counts->moderated, 'i18n_moderation_text' => sprintf( /* translators: %s: Number of comments. */ _n( '%s Comment in moderation', '%s Comments in moderation', $counts->moderated ), number_format_i18n( $counts->moderated ) ), ), ) ); $x->send(); } // // POST-based Ajax handlers. // /** * Handles adding a hierarchical term via AJAX. * * @since 3.1.0 * @access private */ function _wp_ajax_add_hierarchical_term() { $action = $_POST['action']; $taxonomy = get_taxonomy( substr( $action, 4 ) ); check_ajax_referer( $action, '_ajax_nonce-add-' . $taxonomy->name ); if ( ! current_user_can( $taxonomy->cap->edit_terms ) ) { wp_die( -1 ); } $names = explode( ',', $_POST[ 'new' . $taxonomy->name ] ); $parent = isset( $_POST[ 'new' . $taxonomy->name . '_parent' ] ) ? (int) $_POST[ 'new' . $taxonomy->name . '_parent' ] : 0; if ( 0 > $parent ) { $parent = 0; } if ( 'category' === $taxonomy->name ) { $post_category = isset( $_POST['post_category'] ) ? (array) $_POST['post_category'] : array(); } else { $post_category = ( isset( $_POST['tax_input'] ) && isset( $_POST['tax_input'][ $taxonomy->name ] ) ) ? (array) $_POST['tax_input'][ $taxonomy->name ] : array(); } $checked_categories = array_map( 'absint', (array) $post_category ); $popular_ids = wp_popular_terms_checklist( $taxonomy->name, 0, 10, false ); foreach ( $names as $cat_name ) { $cat_name = trim( $cat_name ); $category_nicename = sanitize_title( $cat_name ); if ( '' === $category_nicename ) { continue; } $cat_id = wp_insert_term( $cat_name, $taxonomy->name, array( 'parent' => $parent ) ); if ( ! $cat_id || is_wp_error( $cat_id ) ) { continue; } else { $cat_id = $cat_id['term_id']; } $checked_categories[] = $cat_id; if ( $parent ) { // Do these all at once in a second. continue; } ob_start(); wp_terms_checklist( 0, array( 'taxonomy' => $taxonomy->name, 'descendants_and_self' => $cat_id, 'selected_cats' => $checked_categories, 'popular_cats' => $popular_ids, ) ); $data = ob_get_clean(); $add = array( 'what' => $taxonomy->name, 'id' => $cat_id, 'data' => str_replace( array( "\n", "\t" ), '', $data ), 'position' => -1, ); } if ( $parent ) { // Foncy - replace the parent and all its children. $parent = get_term( $parent, $taxonomy->name ); $term_id = $parent->term_id; while ( $parent->parent ) { // Get the top parent. $parent = get_term( $parent->parent, $taxonomy->name ); if ( is_wp_error( $parent ) ) { break; } $term_id = $parent->term_id; } ob_start(); wp_terms_checklist( 0, array( 'taxonomy' => $taxonomy->name, 'descendants_and_self' => $term_id, 'selected_cats' => $checked_categories, 'popular_cats' => $popular_ids, ) ); $data = ob_get_clean(); $add = array( 'what' => $taxonomy->name, 'id' => $term_id, 'data' => str_replace( array( "\n", "\t" ), '', $data ), 'position' => -1, ); } ob_start(); wp_dropdown_categories( array( 'taxonomy' => $taxonomy->name, 'hide_empty' => 0, 'name' => 'new' . $taxonomy->name . '_parent', 'orderby' => 'name', 'hierarchical' => 1, 'show_option_none' => '— ' . $taxonomy->labels->parent_item . ' —', ) ); $sup = ob_get_clean(); $add['supplemental'] = array( 'newcat_parent' => $sup ); $x = new WP_Ajax_Response( $add ); $x->send(); } /** * Handles deleting a comment via AJAX. * * @since 3.1.0 */ function wp_ajax_delete_comment() { $id = isset( $_POST['id'] ) ? (int) $_POST['id'] : 0; $comment = get_comment( $id ); if ( ! $comment ) { wp_die( time() ); } if ( ! current_user_can( 'edit_comment', $comment->comment_ID ) ) { wp_die( -1 ); } check_ajax_referer( "delete-comment_$id" ); $status = wp_get_comment_status( $comment ); $delta = -1; if ( isset( $_POST['trash'] ) && '1' === $_POST['trash'] ) { if ( 'trash' === $status ) { wp_die( time() ); } $r = wp_trash_comment( $comment ); } elseif ( isset( $_POST['untrash'] ) && '1' === $_POST['untrash'] ) { if ( 'trash' !== $status ) { wp_die( time() ); } $r = wp_untrash_comment( $comment ); // Undo trash, not in Trash. if ( ! isset( $_POST['comment_status'] ) || 'trash' !== $_POST['comment_status'] ) { $delta = 1; } } elseif ( isset( $_POST['spam'] ) && '1' === $_POST['spam'] ) { if ( 'spam' === $status ) { wp_die( time() ); } $r = wp_spam_comment( $comment ); } elseif ( isset( $_POST['unspam'] ) && '1' === $_POST['unspam'] ) { if ( 'spam' !== $status ) { wp_die( time() ); } $r = wp_unspam_comment( $comment ); // Undo spam, not in spam. if ( ! isset( $_POST['comment_status'] ) || 'spam' !== $_POST['comment_status'] ) { $delta = 1; } } elseif ( isset( $_POST['delete'] ) && '1' === $_POST['delete'] ) { $r = wp_delete_comment( $comment ); } else { wp_die( -1 ); } if ( $r ) { // Decide if we need to send back '1' or a more complicated response including page links and comment counts. _wp_ajax_delete_comment_response( $comment->comment_ID, $delta ); } wp_die( 0 ); } /** * Handles deleting a tag via AJAX. * * @since 3.1.0 */ function wp_ajax_delete_tag() { $tag_id = (int) $_POST['tag_ID']; check_ajax_referer( "delete-tag_$tag_id" ); if ( ! current_user_can( 'delete_term', $tag_id ) ) { wp_die( -1 ); } $taxonomy = ! empty( $_POST['taxonomy'] ) ? $_POST['taxonomy'] : 'post_tag'; $tag = get_term( $tag_id, $taxonomy ); if ( ! $tag || is_wp_error( $tag ) ) { wp_die( 1 ); } if ( wp_delete_term( $tag_id, $taxonomy ) ) { wp_die( 1 ); } else { wp_die( 0 ); } } /** * Handles deleting a link via AJAX. * * @since 3.1.0 */ function wp_ajax_delete_link() { $id = isset( $_POST['id'] ) ? (int) $_POST['id'] : 0; check_ajax_referer( "delete-bookmark_$id" ); if ( ! current_user_can( 'manage_links' ) ) { wp_die( -1 ); } $link = get_bookmark( $id ); if ( ! $link || is_wp_error( $link ) ) { wp_die( 1 ); } if ( wp_delete_link( $id ) ) { wp_die( 1 ); } else { wp_die( 0 ); } } /** * Handles deleting meta via AJAX. * * @since 3.1.0 */ function wp_ajax_delete_meta() { $id = isset( $_POST['id'] ) ? (int) $_POST['id'] : 0; check_ajax_referer( "delete-meta_$id" ); $meta = get_metadata_by_mid( 'post', $id ); if ( ! $meta ) { wp_die( 1 ); } if ( is_protected_meta( $meta->meta_key, 'post' ) || ! current_user_can( 'delete_post_meta', $meta->post_id, $meta->meta_key ) ) { wp_die( -1 ); } if ( delete_meta( $meta->meta_id ) ) { wp_die( 1 ); } wp_die( 0 ); } /** * Handles deleting a post via AJAX. * * @since 3.1.0 * * @param string $action Action to perform. */ function wp_ajax_delete_post( $action ) { if ( empty( $action ) ) { $action = 'delete-post'; } $id = isset( $_POST['id'] ) ? (int) $_POST['id'] : 0; check_ajax_referer( "{$action}_$id" ); if ( ! current_user_can( 'delete_post', $id ) ) { wp_die( -1 ); } if ( ! get_post( $id ) ) { wp_die( 1 ); } if ( wp_delete_post( $id ) ) { wp_die( 1 ); } else { wp_die( 0 ); } } /** * Handles sending a post to the Trash via AJAX. * * @since 3.1.0 * * @param string $action Action to perform. */ function wp_ajax_trash_post( $action ) { if ( empty( $action ) ) { $action = 'trash-post'; } $id = isset( $_POST['id'] ) ? (int) $_POST['id'] : 0; check_ajax_referer( "{$action}_$id" ); if ( ! current_user_can( 'delete_post', $id ) ) { wp_die( -1 ); } if ( ! get_post( $id ) ) { wp_die( 1 ); } if ( 'trash-post' === $action ) { $done = wp_trash_post( $id ); } else { $done = wp_untrash_post( $id ); } if ( $done ) { wp_die( 1 ); } wp_die( 0 ); } /** * Handles restoring a post from the Trash via AJAX. * * @since 3.1.0 * * @param string $action Action to perform. */ function wp_ajax_untrash_post( $action ) { if ( empty( $action ) ) { $action = 'untrash-post'; } wp_ajax_trash_post( $action ); } /** * Handles deleting a page via AJAX. * * @since 3.1.0 * * @param string $action Action to perform. */ function wp_ajax_delete_page( $action ) { if ( empty( $action ) ) { $action = 'delete-page'; } $id = isset( $_POST['id'] ) ? (int) $_POST['id'] : 0; check_ajax_referer( "{$action}_$id" ); if ( ! current_user_can( 'delete_page', $id ) ) { wp_die( -1 ); } if ( ! get_post( $id ) ) { wp_die( 1 ); } if ( wp_delete_post( $id ) ) { wp_die( 1 ); } else { wp_die( 0 ); } } /** * Handles dimming a comment via AJAX. * * @since 3.1.0 */ function wp_ajax_dim_comment() { $id = isset( $_POST['id'] ) ? (int) $_POST['id'] : 0; $comment = get_comment( $id ); if ( ! $comment ) { $x = new WP_Ajax_Response( array( 'what' => 'comment', 'id' => new WP_Error( 'invalid_comment', /* translators: %d: Comment ID. */ sprintf( __( 'Comment %d does not exist' ), $id ) ), ) ); $x->send(); } if ( ! current_user_can( 'edit_comment', $comment->comment_ID ) && ! current_user_can( 'moderate_comments' ) ) { wp_die( -1 ); } $current = wp_get_comment_status( $comment ); if ( isset( $_POST['new'] ) && $_POST['new'] === $current ) { wp_die( time() ); } check_ajax_referer( "approve-comment_$id" ); if ( in_array( $current, array( 'unapproved', 'spam' ), true ) ) { $result = wp_set_comment_status( $comment, 'approve', true ); } else { $result = wp_set_comment_status( $comment, 'hold', true ); } if ( is_wp_error( $result ) ) { $x = new WP_Ajax_Response( array( 'what' => 'comment', 'id' => $result, ) ); $x->send(); } // Decide if we need to send back '1' or a more complicated response including page links and comment counts. _wp_ajax_delete_comment_response( $comment->comment_ID ); wp_die( 0 ); } /** * Handles adding a link category via AJAX. * * @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 ); $taxonomy_object = get_taxonomy( 'link_category' ); if ( ! current_user_can( $taxonomy_object->cap->manage_terms ) ) { wp_die( -1 ); } $names = explode( ',', wp_unslash( $_POST['newcat'] ) ); $x = new WP_Ajax_Response(); foreach ( $names as $cat_name ) { $cat_name = trim( $cat_name ); $slug = sanitize_title( $cat_name ); if ( '' === $slug ) { continue; } $cat_id = wp_insert_term( $cat_name, 'link_category' ); if ( ! $cat_id || is_wp_error( $cat_id ) ) { continue; } else { $cat_id = $cat_id['term_id']; } $cat_name = esc_html( $cat_name ); $x->add( array( 'what' => 'link-category', 'id' => $cat_id, 'data' => "<li id='link-category-$cat_id'><label for='in-link-category-$cat_id' class='selectit'><input value='" . esc_attr( $cat_id ) . "' type='checkbox' checked='checked' name='link_category[]' id='in-link-category-$cat_id'/> $cat_name</label></li>", 'position' => -1, ) ); } $x->send(); } /** * Handles adding a tag via AJAX. * * @since 3.1.0 */ function wp_ajax_add_tag() { check_ajax_referer( 'add-tag', '_wpnonce_add-tag' ); $taxonomy = ! empty( $_POST['taxonomy'] ) ? $_POST['taxonomy'] : 'post_tag'; $taxonomy_object = get_taxonomy( $taxonomy ); if ( ! current_user_can( $taxonomy_object->cap->edit_terms ) ) { wp_die( -1 ); } $x = new WP_Ajax_Response(); $tag = wp_insert_term( $_POST['tag-name'], $taxonomy, $_POST ); if ( $tag && ! is_wp_error( $tag ) ) { $tag = get_term( $tag['term_id'], $taxonomy ); } if ( ! $tag || is_wp_error( $tag ) ) { $message = __( 'An error has occurred. Please reload the page and try again.' ); $error_code = 'error'; if ( is_wp_error( $tag ) && $tag->get_error_message() ) { $message = $tag->get_error_message(); } if ( is_wp_error( $tag ) && $tag->get_error_code() ) { $error_code = $tag->get_error_code(); } $x->add( array( 'what' => 'taxonomy', 'data' => new WP_Error( $error_code, $message ), ) ); $x->send(); } $wp_list_table = _get_list_table( 'WP_Terms_List_Table', array( 'screen' => $_POST['screen'] ) ); $level = 0; $noparents = ''; if ( is_taxonomy_hierarchical( $taxonomy ) ) { $level = count( get_ancestors( $tag->term_id, $taxonomy, 'taxonomy' ) ); ob_start(); $wp_list_table->single_row( $tag, $level ); $noparents = ob_get_clean(); } ob_start(); $wp_list_table->single_row( $tag ); $parents = ob_get_clean(); require ABSPATH . 'wp-admin/includes/edit-tag-messages.php'; $message = ''; if ( isset( $messages[ $taxonomy_object->name ][1] ) ) { $message = $messages[ $taxonomy_object->name ][1]; } elseif ( isset( $messages['_item'][1] ) ) { $message = $messages['_item'][1]; } $x->add( array( 'what' => 'taxonomy', 'data' => $message, 'supplemental' => array( 'parents' => $parents, 'noparents' => $noparents, 'notice' => $message, ), ) ); $x->add( array( 'what' => 'term', 'position' => $level, 'supplemental' => (array) $tag, ) ); $x->send(); } /** * Handles getting a tagcloud via AJAX. * * @since 3.1.0 */ function wp_ajax_get_tagcloud() { if ( ! isset( $_POST['tax'] ) ) { wp_die( 0 ); } $taxonomy = sanitize_key( $_POST['tax'] ); $taxonomy_object = get_taxonomy( $taxonomy ); if ( ! $taxonomy_object ) { wp_die( 0 ); } if ( ! current_user_can( $taxonomy_object->cap->assign_terms ) ) { wp_die( -1 ); } $tags = get_terms( array( 'taxonomy' => $taxonomy, 'number' => 45, 'orderby' => 'count', 'order' => 'DESC', ) ); if ( empty( $tags ) ) { wp_die( $taxonomy_object->labels->not_found ); } if ( is_wp_error( $tags ) ) { wp_die( $tags->get_error_message() ); } foreach ( $tags as $key => $tag ) { $tags[ $key ]->link = '#'; $tags[ $key ]->id = $tag->term_id; } // We need raw tag names here, so don't filter the output. $return = wp_generate_tag_cloud( $tags, array( 'filter' => 0, 'format' => 'list', ) ); if ( empty( $return ) ) { wp_die( 0 ); } echo $return; wp_die(); } /** * Handles getting comments via AJAX. * * @since 3.1.0 * * @global int $post_id * * @param string $action Action to perform. */ function wp_ajax_get_comments( $action ) { global $post_id; if ( empty( $action ) ) { $action = 'get-comments'; } check_ajax_referer( $action ); 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', array( 'screen' => 'edit-comments' ) ); if ( ! current_user_can( 'edit_post', $post_id ) ) { wp_die( -1 ); } $wp_list_table->prepare_items(); if ( ! $wp_list_table->has_items() ) { wp_die( 1 ); } $x = new WP_Ajax_Response(); ob_start(); foreach ( $wp_list_table->items as $comment ) { if ( ! current_user_can( 'edit_comment', $comment->comment_ID ) && 0 === $comment->comment_approved ) { continue; } get_comment( $comment ); $wp_list_table->single_row( $comment ); } $comment_list_item = ob_get_clean(); $x->add( array( 'what' => 'comments', 'data' => $comment_list_item, ) ); $x->send(); } /** * Handles replying to a comment via AJAX. * * @since 3.1.0 * * @param string $action Action to perform. */ function wp_ajax_replyto_comment( $action ) { if ( empty( $action ) ) { $action = 'replyto-comment'; } check_ajax_referer( $action, '_ajax_nonce-replyto-comment' ); $comment_post_id = (int) $_POST['comment_post_ID']; $post = get_post( $comment_post_id ); if ( ! $post ) { wp_die( -1 ); } if ( ! current_user_can( 'edit_post', $comment_post_id ) ) { wp_die( -1 ); } if ( empty( $post->post_status ) ) { wp_die( 1 ); } elseif ( in_array( $post->post_status, array( 'draft', 'pending', 'trash' ), true ) ) { wp_die( __( 'You cannot reply to a comment on a draft post.' ) ); } $user = wp_get_current_user(); if ( $user->exists() ) { $comment_author = wp_slash( $user->display_name ); $comment_author_email = wp_slash( $user->user_email ); $comment_author_url = wp_slash( $user->user_url ); $user_id = $user->ID; 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. remove_filter( 'pre_comment_content', 'wp_filter_post_kses' ); add_filter( 'pre_comment_content', 'wp_filter_kses' ); } } } else { wp_die( __( 'Sorry, you must be logged in to reply to a comment.' ) ); } $comment_content = trim( $_POST['content'] ); if ( '' === $comment_content ) { wp_die( __( 'Please type your comment text.' ) ); } $comment_type = isset( $_POST['comment_type'] ) ? trim( $_POST['comment_type'] ) : 'comment'; $comment_parent = 0; if ( isset( $_POST['comment_ID'] ) ) { $comment_parent = absint( $_POST['comment_ID'] ); } $comment_auto_approved = false; $commentdata = array( 'comment_post_ID' => $comment_post_id, ); $commentdata += compact( 'comment_author', 'comment_author_email', 'comment_author_url', 'comment_content', 'comment_type', 'comment_parent', 'user_id' ); // Automatically approve parent comment. if ( ! empty( $_POST['approve_parent'] ) ) { $parent = get_comment( $comment_parent ); if ( $parent && '0' === $parent->comment_approved && (int) $parent->comment_post_ID === $comment_post_id ) { if ( ! current_user_can( 'edit_comment', $parent->comment_ID ) ) { wp_die( -1 ); } if ( wp_set_comment_status( $parent, 'approve' ) ) { $comment_auto_approved = true; } } } $comment_id = wp_new_comment( $commentdata ); if ( is_wp_error( $comment_id ) ) { wp_die( $comment_id->get_error_message() ); } $comment = get_comment( $comment_id ); if ( ! $comment ) { wp_die( 1 ); } $position = ( isset( $_POST['position'] ) && (int) $_POST['position'] ) ? (int) $_POST['position'] : '-1'; ob_start(); 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 { $wp_list_table = _get_list_table( 'WP_Comments_List_Table', array( 'screen' => 'edit-comments' ) ); } $wp_list_table->single_row( $comment ); } $comment_list_item = ob_get_clean(); $response = array( 'what' => 'comment', 'id' => $comment->comment_ID, 'data' => $comment_list_item, 'position' => $position, ); $counts = wp_count_comments(); $response['supplemental'] = array( 'in_moderation' => $counts->moderated, 'i18n_comments_text' => sprintf( /* translators: %s: Number of comments. */ _n( '%s Comment', '%s Comments', $counts->approved ), number_format_i18n( $counts->approved ) ), 'i18n_moderation_text' => sprintf( /* translators: %s: Number of comments. */ _n( '%s Comment in moderation', '%s Comments in moderation', $counts->moderated ), number_format_i18n( $counts->moderated ) ), ); if ( $comment_auto_approved ) { $response['supplemental']['parent_approved'] = $parent->comment_ID; $response['supplemental']['parent_post_id'] = $parent->comment_post_ID; } $x = new WP_Ajax_Response(); $x->add( $response ); $x->send(); } /** * Handles editing a comment via AJAX. * * @since 3.1.0 */ function wp_ajax_edit_comment() { check_ajax_referer( 'replyto-comment', '_ajax_nonce-replyto-comment' ); $comment_id = (int) $_POST['comment_ID']; if ( ! current_user_can( 'edit_comment', $comment_id ) ) { wp_die( -1 ); } if ( '' === $_POST['content'] ) { wp_die( __( 'Please type your comment text.' ) ); } if ( isset( $_POST['status'] ) ) { $_POST['comment_status'] = $_POST['status']; } $updated = edit_comment(); if ( is_wp_error( $updated ) ) { wp_die( $updated->get_error_message() ); } $position = ( isset( $_POST['position'] ) && (int) $_POST['position'] ) ? (int) $_POST['position'] : '-1'; /* * Checkbox is used to differentiate between the Edit Comments screen (1) * and the Comments section on the Edit Post screen (0). */ $checkbox = ( isset( $_POST['checkbox'] ) && '1' === $_POST['checkbox'] ) ? 1 : 0; $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_clean(); $x = new WP_Ajax_Response(); $x->add( array( 'what' => 'edit_comment', 'id' => $comment->comment_ID, 'data' => $comment_list_item, 'position' => $position, ) ); $x->send(); } /** * Handles adding a menu item via AJAX. * * @since 3.1.0 */ function wp_ajax_add_menu_item() { check_ajax_referer( 'add-menu_item', 'menu-settings-column-nonce' ); if ( ! current_user_can( 'edit_theme_options' ) ) { wp_die( -1 ); } require_once ABSPATH . 'wp-admin/includes/nav-menu.php'; /* * For performance reasons, we omit some object properties from the checklist. * The following is a hacky way to restore them when adding non-custom items. */ $menu_items_data = array(); foreach ( (array) $_POST['menu-item'] as $menu_item_data ) { if ( ! empty( $menu_item_data['menu-item-type'] ) && 'custom' !== $menu_item_data['menu-item-type'] && ! empty( $menu_item_data['menu-item-object-id'] ) ) { switch ( $menu_item_data['menu-item-type'] ) { case 'post_type': $_object = get_post( $menu_item_data['menu-item-object-id'] ); break; case 'post_type_archive': $_object = get_post_type_object( $menu_item_data['menu-item-object'] ); break; case 'taxonomy': $_object = get_term( $menu_item_data['menu-item-object-id'], $menu_item_data['menu-item-object'] ); break; } $_menu_items = array_map( 'wp_setup_nav_menu_item', array( $_object ) ); $_menu_item = reset( $_menu_items ); // Restore the missing menu item properties. $menu_item_data['menu-item-description'] = $_menu_item->description; } $menu_items_data[] = $menu_item_data; } $item_ids = wp_save_nav_menu_items( 0, $menu_items_data ); if ( is_wp_error( $item_ids ) ) { wp_die( 0 ); } $menu_items = array(); foreach ( (array) $item_ids as $menu_item_id ) { $menu_obj = get_post( $menu_item_id ); if ( ! empty( $menu_obj->ID ) ) { $menu_obj = wp_setup_nav_menu_item( $menu_obj ); $menu_obj->title = empty( $menu_obj->title ) ? __( 'Menu Item' ) : $menu_obj->title; $menu_obj->label = $menu_obj->title; // Don't show "(pending)" in ajax-added items. $menu_items[] = $menu_obj; } } /** 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 ) ) { wp_die( 0 ); } if ( ! empty( $menu_items ) ) { $args = array( 'after' => '', 'before' => '', 'link_after' => '', 'link_before' => '', 'walker' => new $walker_class_name(), ); echo walk_nav_menu_tree( $menu_items, 0, (object) $args ); } wp_die(); } /** * Handles adding meta via AJAX. * * @since 3.1.0 */ function wp_ajax_add_meta() { check_ajax_referer( 'add-meta', '_ajax_nonce-add-meta' ); $c = 0; $pid = (int) $_POST['post_id']; $post = get_post( $pid ); if ( isset( $_POST['metakeyselect'] ) || isset( $_POST['metakeyinput'] ) ) { if ( ! current_user_can( 'edit_post', $pid ) ) { 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 ( 'auto-draft' === $post->post_status ) { $post_data = array(); $post_data['action'] = 'draft'; // Warning fix. $post_data['post_ID'] = $pid; $post_data['post_type'] = $post->post_type; $post_data['post_status'] = 'draft'; $now = time(); $post_data['post_title'] = sprintf( /* translators: 1: Post creation date, 2: Post creation time. */ __( 'Draft created on %1$s at %2$s' ), gmdate( __( 'F j, Y' ), $now ), gmdate( __( 'g:i a' ), $now ) ); $pid = edit_post( $post_data ); if ( $pid ) { if ( is_wp_error( $pid ) ) { $x = new WP_Ajax_Response( array( 'what' => 'meta', 'data' => $pid, ) ); $x->send(); } $mid = add_meta( $pid ); if ( ! $mid ) { wp_die( __( 'Please provide a custom field value.' ) ); } } else { wp_die( 0 ); } } else { $mid = add_meta( $pid ); if ( ! $mid ) { wp_die( __( 'Please provide a custom field value.' ) ); } } $meta = get_metadata_by_mid( 'post', $mid ); $pid = (int) $meta->post_id; $meta = get_object_vars( $meta ); $x = new WP_Ajax_Response( array( 'what' => 'meta', 'id' => $mid, 'data' => _list_meta_row( $meta, $c ), 'position' => 1, 'supplemental' => array( 'postid' => $pid ), ) ); } else { // Update? $mid = (int) key( $_POST['meta'] ); $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.' ) ); } $meta = get_metadata_by_mid( 'post', $mid ); if ( ! $meta ) { wp_die( 0 ); // If meta doesn't exist. } if ( is_protected_meta( $meta->meta_key, 'post' ) || is_protected_meta( $key, 'post' ) || ! current_user_can( 'edit_post_meta', $meta->post_id, $meta->meta_key ) || ! current_user_can( 'edit_post_meta', $meta->post_id, $key ) ) { wp_die( -1 ); } if ( $meta->meta_value !== $value || $meta->meta_key !== $key ) { $u = update_metadata_by_mid( 'post', $mid, $value, $key ); if ( ! $u ) { wp_die( 0 ); // We know meta exists; we also know it's unchanged (or DB error, in which case there are bigger problems). } } $x = new WP_Ajax_Response( array( 'what' => 'meta', 'id' => $mid, 'old_id' => $mid, 'data' => _list_meta_row( array( 'meta_key' => $key, 'meta_value' => $value, 'meta_id' => $mid, ), $c ), 'position' => 0, 'supplemental' => array( 'postid' => $meta->post_id ), ) ); } $x->send(); } /** * Handles adding a user via AJAX. * * @since 3.1.0 * * @param string $action Action to perform. */ function wp_ajax_add_user( $action ) { if ( empty( $action ) ) { $action = 'add-user'; } check_ajax_referer( $action ); if ( ! current_user_can( 'create_users' ) ) { wp_die( -1 ); } $user_id = edit_user(); if ( ! $user_id ) { wp_die( 0 ); } elseif ( is_wp_error( $user_id ) ) { $x = new WP_Ajax_Response( array( 'what' => 'user', 'id' => $user_id, ) ); $x->send(); } $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, '', $role ), 'supplemental' => array( 'show-link' => sprintf( /* translators: %s: The new user. */ __( 'User %s added' ), '<a href="#user-' . $user_id . '">' . $user_object->user_login . '</a>' ), 'role' => $role, ), ) ); $x->send(); } /** * Handles closed post boxes via AJAX. * * @since 3.1.0 */ function wp_ajax_closed_postboxes() { check_ajax_referer( 'closedpostboxes', 'closedpostboxesnonce' ); $closed = isset( $_POST['closed'] ) ? explode( ',', $_POST['closed'] ) : array(); $closed = array_filter( $closed ); $hidden = isset( $_POST['hidden'] ) ? explode( ',', $_POST['hidden'] ) : array(); $hidden = array_filter( $hidden ); $page = isset( $_POST['page'] ) ? $_POST['page'] : ''; if ( sanitize_key( $page ) !== $page ) { wp_die( 0 ); } $user = wp_get_current_user(); if ( ! $user ) { wp_die( -1 ); } if ( is_array( $closed ) ) { update_user_meta( $user->ID, "closedpostboxes_$page", $closed ); } if ( is_array( $hidden ) ) { // Postboxes that are always shown. $hidden = array_diff( $hidden, array( 'submitdiv', 'linksubmitdiv', 'manage-menu', 'create-menu' ) ); update_user_meta( $user->ID, "metaboxhidden_$page", $hidden ); } wp_die( 1 ); } /** * Handles hidden columns via AJAX. * * @since 3.1.0 */ function wp_ajax_hidden_columns() { check_ajax_referer( 'screen-options-nonce', 'screenoptionnonce' ); $page = isset( $_POST['page'] ) ? $_POST['page'] : ''; if ( sanitize_key( $page ) !== $page ) { wp_die( 0 ); } $user = wp_get_current_user(); if ( ! $user ) { wp_die( -1 ); } $hidden = ! empty( $_POST['hidden'] ) ? explode( ',', $_POST['hidden'] ) : array(); update_user_meta( $user->ID, "manage{$page}columnshidden", $hidden ); wp_die( 1 ); } /** * Handles updating whether to display the welcome panel via AJAX. * * @since 3.1.0 */ function wp_ajax_update_welcome_panel() { check_ajax_referer( 'welcome-panel-nonce', 'welcomepanelnonce' ); if ( ! current_user_can( 'edit_theme_options' ) ) { wp_die( -1 ); } update_user_meta( get_current_user_id(), 'show_welcome_panel', empty( $_POST['visible'] ) ? 0 : 1 ); wp_die( 1 ); } /** * Handles for retrieving menu meta boxes via AJAX. * * @since 3.1.0 */ function wp_ajax_menu_get_metabox() { if ( ! current_user_can( 'edit_theme_options' ) ) { wp_die( -1 ); } require_once ABSPATH . 'wp-admin/includes/nav-menu.php'; if ( isset( $_POST['item-type'] ) && 'post_type' === $_POST['item-type'] ) { $type = 'posttype'; $callback = 'wp_nav_menu_item_post_type_meta_box'; $items = (array) get_post_types( array( 'show_in_nav_menus' => true ), 'object' ); } elseif ( isset( $_POST['item-type'] ) && 'taxonomy' === $_POST['item-type'] ) { $type = 'taxonomy'; $callback = 'wp_nav_menu_item_taxonomy_meta_box'; $items = (array) get_taxonomies( array( 'show_ui' => true ), 'object' ); } if ( ! empty( $_POST['item-object'] ) && isset( $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 ); $box_args = array( 'id' => 'add-' . $item->name, 'title' => $item->labels->name, 'callback' => $callback, 'args' => $item, ); ob_start(); $callback( null, $box_args ); $markup = ob_get_clean(); echo wp_json_encode( array( 'replace-id' => $type . '-' . $item->name, 'markup' => $markup, ) ); } wp_die(); } /** * Handles internal linking via AJAX. * * @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'] = wp_unslash( $_POST['search'] ); } if ( isset( $_POST['term'] ) ) { $args['s'] = wp_unslash( $_POST['term'] ); } $args['pagenum'] = ! empty( $_POST['page'] ) ? absint( $_POST['page'] ) : 1; if ( ! class_exists( '_WP_Editors', false ) ) { require ABSPATH . WPINC . '/class-wp-editor.php'; } $results = _WP_Editors::wp_link_query( $args ); if ( ! isset( $results ) ) { wp_die( 0 ); } echo wp_json_encode( $results ); echo "\n"; wp_die(); } /** * Handles saving menu locations via AJAX. * * @since 3.1.0 */ function wp_ajax_menu_locations_save() { if ( ! current_user_can( 'edit_theme_options' ) ) { wp_die( -1 ); } check_ajax_referer( 'add-menu_item', 'menu-settings-column-nonce' ); if ( ! isset( $_POST['menu-locations'] ) ) { wp_die( 0 ); } set_theme_mod( 'nav_menu_locations', array_map( 'absint', $_POST['menu-locations'] ) ); wp_die( 1 ); } /** * Handles saving the meta box order via AJAX. * * @since 3.1.0 */ function wp_ajax_meta_box_order() { check_ajax_referer( 'meta-box-order' ); $order = isset( $_POST['order'] ) ? (array) $_POST['order'] : false; $page_columns = isset( $_POST['page_columns'] ) ? $_POST['page_columns'] : 'auto'; if ( 'auto' !== $page_columns ) { $page_columns = (int) $page_columns; } $page = isset( $_POST['page'] ) ? $_POST['page'] : ''; if ( sanitize_key( $page ) !== $page ) { wp_die( 0 ); } $user = wp_get_current_user(); if ( ! $user ) { wp_die( -1 ); } if ( $order ) { update_user_meta( $user->ID, "meta-box-order_$page", $order ); } if ( $page_columns ) { update_user_meta( $user->ID, "screen_layout_$page", $page_columns ); } wp_send_json_success(); } /** * Handles menu quick searching via AJAX. * * @since 3.1.0 */ function wp_ajax_menu_quick_search() { if ( ! current_user_can( 'edit_theme_options' ) ) { wp_die( -1 ); } require_once ABSPATH . 'wp-admin/includes/nav-menu.php'; _wp_ajax_menu_quick_search( $_POST ); wp_die(); } /** * Handles retrieving a permalink via AJAX. * * @since 3.1.0 */ function wp_ajax_get_permalink() { check_ajax_referer( 'getpermalink', 'getpermalinknonce' ); $post_id = isset( $_POST['post_id'] ) ? (int) $_POST['post_id'] : 0; wp_die( get_preview_post_link( $post_id ) ); } /** * Handles retrieving a sample permalink via AJAX. * * @since 3.1.0 */ function wp_ajax_sample_permalink() { check_ajax_referer( 'samplepermalink', 'samplepermalinknonce' ); $post_id = isset( $_POST['post_id'] ) ? (int) $_POST['post_id'] : 0; $title = isset( $_POST['new_title'] ) ? $_POST['new_title'] : ''; $slug = isset( $_POST['new_slug'] ) ? $_POST['new_slug'] : null; wp_die( get_sample_permalink_html( $post_id, $title, $slug ) ); } /** * Handles Quick Edit saving a post from a list table via AJAX. * * @since 3.1.0 * * @global string $mode List table view mode. */ function wp_ajax_inline_save() { global $mode; check_ajax_referer( 'inlineeditnonce', '_inline_edit' ); if ( ! isset( $_POST['post_ID'] ) || ! (int) $_POST['post_ID'] ) { wp_die(); } $post_id = (int) $_POST['post_ID']; if ( 'page' === $_POST['post_type'] ) { if ( ! current_user_can( 'edit_page', $post_id ) ) { wp_die( __( 'Sorry, you are not allowed to edit this page.' ) ); } } else { if ( ! current_user_can( 'edit_post', $post_id ) ) { wp_die( __( 'Sorry, you are not allowed to edit this post.' ) ); } } $last = wp_check_post_lock( $post_id ); if ( $last ) { $last_user = get_userdata( $last ); $last_user_name = $last_user ? $last_user->display_name : __( 'Someone' ); /* translators: %s: User's display name. */ $msg_template = __( 'Saving is disabled: %s is currently editing this post.' ); if ( 'page' === $_POST['post_type'] ) { /* translators: %s: User's display name. */ $msg_template = __( 'Saving is disabled: %s is currently editing this page.' ); } printf( $msg_template, esc_html( $last_user_name ) ); wp_die(); } $data = &$_POST; $post = get_post( $post_id, ARRAY_A ); // 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'] = get_current_user_id(); if ( isset( $data['post_parent'] ) ) { $data['parent_id'] = $data['post_parent']; } // Status. if ( isset( $data['keep_private'] ) && 'private' === $data['keep_private'] ) { $data['visibility'] = 'private'; $data['post_status'] = 'private'; } else { $data['post_status'] = $data['_status']; } if ( empty( $data['comment_status'] ) ) { $data['comment_status'] = 'closed'; } if ( empty( $data['ping_status'] ) ) { $data['ping_status'] = 'closed'; } // Exclude terms from taxonomies that are not supposed to appear in Quick Edit. if ( ! empty( $data['tax_input'] ) ) { foreach ( $data['tax_input'] as $taxonomy => $terms ) { $tax_object = get_taxonomy( $taxonomy ); /** This filter is documented in wp-admin/includes/class-wp-posts-list-table.php */ if ( ! apply_filters( 'quick_edit_show_taxonomy', $tax_object->show_in_quick_edit, $taxonomy, $post['post_type'] ) ) { unset( $data['tax_input'][ $taxonomy ] ); } } } // 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' ), true ) ) { $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', array( 'screen' => $_POST['screen'] ) ); $mode = 'excerpt' === $_POST['post_view'] ? 'excerpt' : 'list'; $level = 0; if ( is_post_type_hierarchical( $wp_list_table->screen->post_type ) ) { $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; } } $wp_list_table->display_rows( array( get_post( $_POST['post_ID'] ) ), $level ); wp_die(); } /** * Handles Quick Edit saving for a term via AJAX. * * @since 3.1.0 */ function wp_ajax_inline_save_tax() { check_ajax_referer( 'taxinlineeditnonce', '_inline_edit' ); $taxonomy = sanitize_key( $_POST['taxonomy'] ); $taxonomy_object = get_taxonomy( $taxonomy ); if ( ! $taxonomy_object ) { wp_die( 0 ); } if ( ! isset( $_POST['tax_ID'] ) || ! (int) $_POST['tax_ID'] ) { wp_die( -1 ); } $id = (int) $_POST['tax_ID']; if ( ! current_user_can( 'edit_term', $id ) ) { wp_die( -1 ); } $wp_list_table = _get_list_table( 'WP_Terms_List_Table', array( 'screen' => 'edit-' . $taxonomy ) ); $tag = get_term( $id, $taxonomy ); $_POST['description'] = $tag->description; $updated = wp_update_term( $id, $taxonomy, $_POST ); if ( $updated && ! is_wp_error( $updated ) ) { $tag = get_term( $updated['term_id'], $taxonomy ); if ( ! $tag || is_wp_error( $tag ) ) { if ( is_wp_error( $tag ) && $tag->get_error_message() ) { wp_die( $tag->get_error_message() ); } wp_die( __( 'Item not updated.' ) ); } } 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(); } /** * Handles querying posts for the Find Posts modal via AJAX. * * @see window.findPosts * * @since 3.1.0 */ function wp_ajax_find_posts() { check_ajax_referer( 'find-posts' ); $post_types = get_post_types( array( 'public' => true ), 'objects' ); unset( $post_types['attachment'] ); $args = array( 'post_type' => array_keys( $post_types ), 'post_status' => 'any', 'posts_per_page' => 50, ); $search = wp_unslash( $_POST['ps'] ); if ( '' !== $search ) { $args['s'] = $search; } $posts = get_posts( $args ); if ( ! $posts ) { wp_send_json_error( __( 'No items found.' ) ); } $html = '<table class="widefat"><thead><tr><th class="found-radio"><br /></th><th>' . __( 'Title' ) . '</th><th class="no-break">' . __( 'Type' ) . '</th><th class="no-break">' . __( 'Date' ) . '</th><th class="no-break">' . __( 'Status' ) . '</th></tr></thead><tbody>'; $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': case 'private': $stat = __( 'Published' ); break; case 'future': $stat = __( 'Scheduled' ); break; case 'pending': $stat = __( 'Pending Review' ); break; case 'draft': $stat = __( 'Draft' ); break; } if ( '0000-00-00 00:00:00' === $post->post_date ) { $time = ''; } else { /* translators: Date format in table columns, see https://www.php.net/manual/datetime.format.php */ $time = mysql2date( __( 'Y/m/d' ), $post->post_date ); } $html .= '<tr class="' . trim( 'found-posts ' . $alt ) . '"><td class="found-radio"><input type="radio" id="found-' . $post->ID . '" name="found_post_id" value="' . esc_attr( $post->ID ) . '"></td>'; $html .= '<td><label for="found-' . $post->ID . '">' . esc_html( $title ) . '</label></td><td class="no-break">' . esc_html( $post_types[ $post->post_type ]->labels->singular_name ) . '</td><td class="no-break">' . esc_html( $time ) . '</td><td class="no-break">' . esc_html( $stat ) . ' </td></tr>' . "\n\n"; } $html .= '</tbody></table>'; wp_send_json_success( $html ); } /** * Handles saving the widgets order via AJAX. * * @since 3.1.0 */ function wp_ajax_widgets_order() { check_ajax_referer( 'save-sidebar-widgets', 'savewidgets' ); if ( ! current_user_can( 'edit_theme_options' ) ) { wp_die( -1 ); } unset( $_POST['savewidgets'], $_POST['action'] ); // Save widgets order for all sidebars. if ( is_array( $_POST['sidebars'] ) ) { $sidebars = array(); foreach ( wp_unslash( $_POST['sidebars'] ) as $key => $val ) { $sb = array(); if ( ! empty( $val ) ) { $val = explode( ',', $val ); foreach ( $val as $k => $v ) { if ( ! str_contains( $v, 'widget-' ) ) { continue; } $sb[ $k ] = substr( $v, strpos( $v, '_' ) + 1 ); } } $sidebars[ $key ] = $sb; } wp_set_sidebars_widgets( $sidebars ); wp_die( 1 ); } wp_die( -1 ); } /** * Handles saving a widget via AJAX. * * @since 3.1.0 * * @global array $wp_registered_widgets * @global array $wp_registered_widget_controls * @global array $wp_registered_widget_updates */ function wp_ajax_save_widget() { global $wp_registered_widgets, $wp_registered_widget_controls, $wp_registered_widget_updates; check_ajax_referer( 'save-sidebar-widgets', 'savewidgets' ); if ( ! current_user_can( 'edit_theme_options' ) || ! isset( $_POST['id_base'] ) ) { wp_die( -1 ); } unset( $_POST['savewidgets'], $_POST['action'] ); /** * Fires early when editing the widgets displayed in sidebars. * * @since 2.8.0 */ do_action( 'load-widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores /** * Fires early when editing the widgets displayed in sidebars. * * @since 2.8.0 */ do_action( 'widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores /** This action is documented in wp-admin/widgets.php */ do_action( 'sidebar_admin_setup' ); $id_base = wp_unslash( $_POST['id_base'] ); $widget_id = wp_unslash( $_POST['widget-id'] ); $sidebar_id = $_POST['sidebar']; $multi_number = ! empty( $_POST['multi_number'] ) ? (int) $_POST['multi_number'] : 0; $settings = isset( $_POST[ 'widget-' . $id_base ] ) && is_array( $_POST[ 'widget-' . $id_base ] ) ? $_POST[ 'widget-' . $id_base ] : false; $error = '<p>' . __( 'An error has occurred. Please reload the page and try again.' ) . '</p>'; $sidebars = wp_get_sidebars_widgets(); $sidebar = isset( $sidebars[ $sidebar_id ] ) ? $sidebars[ $sidebar_id ] : array(); // Delete. if ( isset( $_POST['delete_widget'] ) && $_POST['delete_widget'] ) { if ( ! isset( $wp_registered_widgets[ $widget_id ] ) ) { wp_die( $error ); } $sidebar = array_diff( $sidebar, array( $widget_id ) ); $_POST = array( 'sidebar' => $sidebar_id, 'widget-' . $id_base => array(), 'the-widget-id' => $widget_id, 'delete_widget' => '1', ); /** This action is documented in wp-admin/widgets.php */ do_action( 'delete_widget', $widget_id, $sidebar_id, $id_base ); } elseif ( $settings && preg_match( '/__i__|%i%/', key( $settings ) ) ) { if ( ! $multi_number ) { wp_die( $error ); } $_POST[ 'widget-' . $id_base ] = array( $multi_number => reset( $settings ) ); $widget_id = $id_base . '-' . $multi_number; $sidebar[] = $widget_id; } $_POST['widget-id'] = $sidebar; foreach ( (array) $wp_registered_widget_updates as $name => $control ) { if ( $name === $id_base ) { if ( ! is_callable( $control['callback'] ) ) { continue; } ob_start(); call_user_func_array( $control['callback'], $control['params'] ); ob_end_clean(); break; } } if ( isset( $_POST['delete_widget'] ) && $_POST['delete_widget'] ) { $sidebars[ $sidebar_id ] = $sidebar; wp_set_sidebars_widgets( $sidebars ); echo "deleted:$widget_id"; wp_die(); } if ( ! empty( $_POST['add_new'] ) ) { wp_die(); } $form = $wp_registered_widget_controls[ $widget_id ]; if ( $form ) { call_user_func_array( $form['callback'], $form['params'] ); } wp_die(); } /** * Handles updating a widget via AJAX. * * @since 3.9.0 * * @global WP_Customize_Manager $wp_customize */ function wp_ajax_update_widget() { global $wp_customize; $wp_customize->widgets->wp_ajax_update_widget(); } /** * Handles removing inactive widgets via AJAX. * * @since 4.4.0 */ function wp_ajax_delete_inactive_widgets() { check_ajax_referer( 'remove-inactive-widgets', 'removeinactivewidgets' ); if ( ! current_user_can( 'edit_theme_options' ) ) { wp_die( -1 ); } unset( $_POST['removeinactivewidgets'], $_POST['action'] ); /** This action is documented in wp-admin/includes/ajax-actions.php */ do_action( 'load-widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores /** This action is documented in wp-admin/includes/ajax-actions.php */ do_action( 'widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores /** This action is documented in wp-admin/widgets.php */ do_action( 'sidebar_admin_setup' ); $sidebars_widgets = wp_get_sidebars_widgets(); foreach ( $sidebars_widgets['wp_inactive_widgets'] as $key => $widget_id ) { $pieces = explode( '-', $widget_id ); $multi_number = array_pop( $pieces ); $id_base = implode( '-', $pieces ); $widget = get_option( 'widget_' . $id_base ); unset( $widget[ $multi_number ] ); update_option( 'widget_' . $id_base, $widget ); unset( $sidebars_widgets['wp_inactive_widgets'][ $key ] ); } wp_set_sidebars_widgets( $sidebars_widgets ); wp_die(); } /** * Handles creating missing image sub-sizes for just uploaded images via AJAX. * * @since 5.3.0 */ function wp_ajax_media_create_image_subsizes() { check_ajax_referer( 'media-form' ); if ( ! current_user_can( 'upload_files' ) ) { wp_send_json_error( array( 'message' => __( 'Sorry, you are not allowed to upload files.' ) ) ); } if ( empty( $_POST['attachment_id'] ) ) { wp_send_json_error( array( 'message' => __( 'Upload failed. Please reload and try again.' ) ) ); } $attachment_id = (int) $_POST['attachment_id']; if ( ! empty( $_POST['_wp_upload_failed_cleanup'] ) ) { // Upload failed. Cleanup. if ( wp_attachment_is_image( $attachment_id ) && current_user_can( 'delete_post', $attachment_id ) ) { $attachment = get_post( $attachment_id ); // Created at most 10 min ago. if ( $attachment && ( time() - strtotime( $attachment->post_date_gmt ) < 600 ) ) { wp_delete_attachment( $attachment_id, true ); wp_send_json_success(); } } } /* * Set a custom header with the attachment_id. * Used by the browser/client to resume creating image sub-sizes after a PHP fatal error. */ if ( ! headers_sent() ) { header( 'X-WP-Upload-Attachment-ID: ' . $attachment_id ); } /* * This can still be pretty slow and cause timeout or out of memory errors. * The js that handles the response would need to also handle HTTP 500 errors. */ wp_update_image_subsizes( $attachment_id ); if ( ! empty( $_POST['_legacy_support'] ) ) { // The old (inline) uploader. Only needs the attachment_id. $response = array( 'id' => $attachment_id ); } else { // Media modal and Media Library grid view. $response = wp_prepare_attachment_for_js( $attachment_id ); if ( ! $response ) { wp_send_json_error( array( 'message' => __( 'Upload failed.' ) ) ); } } // At this point the image has been uploaded successfully. wp_send_json_success( $response ); } /** * Handles uploading attachments via AJAX. * * @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' => __( 'Sorry, you are not allowed to upload files.' ), 'filename' => esc_html( $_FILES['async-upload']['name'] ), ), ) ); wp_die(); } if ( isset( $_REQUEST['post_id'] ) ) { $post_id = $_REQUEST['post_id']; if ( ! current_user_can( 'edit_post', $post_id ) ) { echo wp_json_encode( array( 'success' => false, 'data' => array( 'message' => __( 'Sorry, you are not allowed to attach files to this post.' ), 'filename' => esc_html( $_FILES['async-upload']['name'] ), ), ) ); wp_die(); } } else { $post_id = null; } $post_data = ! empty( $_REQUEST['post_data'] ) ? _wp_get_allowed_postdata( _wp_translate_postdata( false, (array) $_REQUEST['post_data'] ) ) : array(); if ( is_wp_error( $post_data ) ) { wp_die( $post_data->get_error_message() ); } // 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' ), true ) ) { $wp_filetype = wp_check_filetype_and_ext( $_FILES['async-upload']['tmp_name'], $_FILES['async-upload']['name'] ); 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' => esc_html( $_FILES['async-upload']['name'] ), ), ) ); wp_die(); } } $attachment_id = media_handle_upload( 'async-upload', $post_id, $post_data ); if ( is_wp_error( $attachment_id ) ) { echo wp_json_encode( array( 'success' => false, 'data' => array( 'message' => $attachment_id->get_error_message(), 'filename' => esc_html( $_FILES['async-upload']['name'] ), ), ) ); wp_die(); } if ( isset( $post_data['context'] ) && isset( $post_data['theme'] ) ) { if ( 'custom-background' === $post_data['context'] ) { update_post_meta( $attachment_id, '_wp_attachment_is_custom_background', $post_data['theme'] ); } if ( 'custom-header' === $post_data['context'] ) { update_post_meta( $attachment_id, '_wp_attachment_is_custom_header', $post_data['theme'] ); } } $attachment = wp_prepare_attachment_for_js( $attachment_id ); if ( ! $attachment ) { wp_die(); } echo wp_json_encode( array( 'success' => true, 'data' => $attachment, ) ); wp_die(); } /** * Handles image editing via AJAX. * * @since 3.1.0 */ function wp_ajax_image_editor() { $attachment_id = (int) $_POST['postid']; if ( empty( $attachment_id ) || ! current_user_can( 'edit_post', $attachment_id ) ) { wp_die( -1 ); } check_ajax_referer( "image_editor-$attachment_id" ); require_once ABSPATH . 'wp-admin/includes/image-edit.php'; $msg = false; switch ( $_POST['do'] ) { case 'save': $msg = wp_save_image( $attachment_id ); if ( ! empty( $msg->error ) ) { wp_send_json_error( $msg ); } wp_send_json_success( $msg ); break; case 'scale': $msg = wp_save_image( $attachment_id ); break; case 'restore': $msg = wp_restore_image( $attachment_id ); break; } ob_start(); wp_image_editor( $attachment_id, $msg ); $html = ob_get_clean(); if ( ! empty( $msg->error ) ) { wp_send_json_error( array( 'message' => $msg, 'html' => $html, ) ); } wp_send_json_success( array( 'message' => $msg, 'html' => $html, ) ); } /** * Handles setting the featured image via AJAX. * * @since 3.1.0 */ function wp_ajax_set_post_thumbnail() { $json = ! empty( $_REQUEST['json'] ); // New-style request. $post_id = (int) $_POST['post_id']; if ( ! current_user_can( 'edit_post', $post_id ) ) { wp_die( -1 ); } $thumbnail_id = (int) $_POST['thumbnail_id']; if ( $json ) { check_ajax_referer( "update-post_$post_id" ); } else { check_ajax_referer( "set_post_thumbnail-$post_id" ); } if ( -1 === $thumbnail_id ) { 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 ); } wp_die( 0 ); } /** * Handles retrieving HTML for the featured image via AJAX. * * @since 4.6.0 */ function wp_ajax_get_post_thumbnail_html() { $post_id = (int) $_POST['post_id']; check_ajax_referer( "update-post_$post_id" ); if ( ! current_user_can( 'edit_post', $post_id ) ) { wp_die( -1 ); } $thumbnail_id = (int) $_POST['thumbnail_id']; // For backward compatibility, -1 refers to no featured image. if ( -1 === $thumbnail_id ) { $thumbnail_id = null; } $return = _wp_post_thumbnail_html( $thumbnail_id, $post_id ); wp_send_json_success( $return ); } /** * Handles setting the featured image for an attachment via AJAX. * * @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(); } if ( false === check_ajax_referer( 'set-attachment-thumbnail', '_ajax_nonce', false ) ) { 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(); } /** * Handles formatting a date via AJAX. * * @since 3.1.0 */ function wp_ajax_date_format() { wp_die( date_i18n( sanitize_option( 'date_format', wp_unslash( $_POST['date'] ) ) ) ); } /** * Handles formatting a time via AJAX. * * @since 3.1.0 */ function wp_ajax_time_format() { wp_die( date_i18n( sanitize_option( 'time_format', wp_unslash( $_POST['date'] ) ) ) ); } /** * Handles saving posts from the fullscreen editor via AJAX. * * @since 3.1.0 * @deprecated 4.3.0 */ function wp_ajax_wp_fullscreen_save_post() { $post_id = isset( $_POST['post_ID'] ) ? (int) $_POST['post_ID'] : 0; $post = null; if ( $post_id ) { $post = get_post( $post_id ); } check_ajax_referer( 'update-post_' . $post_id, '_wpnonce' ); $post_id = edit_post(); if ( is_wp_error( $post_id ) ) { wp_send_json_error(); } if ( $post ) { $last_date = mysql2date( __( 'F j, Y' ), $post->post_modified ); $last_time = mysql2date( __( 'g:i a' ), $post->post_modified ); } else { $last_date = date_i18n( __( 'F j, Y' ) ); $last_time = date_i18n( __( 'g:i a' ) ); } $last_id = get_post_meta( $post_id, '_edit_last', true ); if ( $last_id ) { $last_user = get_userdata( $last_id ); /* translators: 1: User's display name, 2: Date of last edit, 3: Time of last edit. */ $last_edited = sprintf( __( 'Last edited by %1$s on %2$s at %3$s' ), esc_html( $last_user->display_name ), $last_date, $last_time ); } else { /* translators: 1: Date of last edit, 2: Time of last edit. */ $last_edited = sprintf( __( 'Last edited on %1$s at %2$s' ), $last_date, $last_time ); } wp_send_json_success( array( 'last_edited' => $last_edited ) ); } /** * Handles removing a post lock via AJAX. * * @since 3.1.0 */ function wp_ajax_wp_remove_post_lock() { if ( empty( $_POST['post_ID'] ) || empty( $_POST['active_post_lock'] ) ) { wp_die( 0 ); } $post_id = (int) $_POST['post_ID']; $post = get_post( $post_id ); if ( ! $post ) { wp_die( 0 ); } check_ajax_referer( 'update-post_' . $post_id ); if ( ! current_user_can( 'edit_post', $post_id ) ) { wp_die( -1 ); } $active_lock = array_map( 'absint', explode( ':', $_POST['active_post_lock'] ) ); if ( get_current_user_id() !== $active_lock[1] ) { wp_die( 0 ); } /** * Filters 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 ); } /** * Handles dismissing a WordPress pointer via AJAX. * * @since 3.1.0 */ function wp_ajax_dismiss_wp_pointer() { $pointer = $_POST['pointer']; if ( sanitize_key( $pointer ) !== $pointer ) { wp_die( 0 ); } // check_ajax_referer( 'dismiss-pointer_' . $pointer ); $dismissed = array_filter( explode( ',', (string) get_user_meta( get_current_user_id(), 'dismissed_wp_pointers', true ) ) ); if ( in_array( $pointer, $dismissed, true ) ) { wp_die( 0 ); } $dismissed[] = $pointer; $dismissed = implode( ',', $dismissed ); update_user_meta( get_current_user_id(), 'dismissed_wp_pointers', $dismissed ); wp_die( 1 ); } /** * Handles getting an attachment via AJAX. * * @since 3.5.0 */ function wp_ajax_get_attachment() { if ( ! isset( $_REQUEST['id'] ) ) { wp_send_json_error(); } $id = absint( $_REQUEST['id'] ); if ( ! $id ) { wp_send_json_error(); } $post = get_post( $id ); if ( ! $post ) { wp_send_json_error(); } if ( 'attachment' !== $post->post_type ) { wp_send_json_error(); } if ( ! current_user_can( 'upload_files' ) ) { wp_send_json_error(); } $attachment = wp_prepare_attachment_for_js( $id ); if ( ! $attachment ) { wp_send_json_error(); } wp_send_json_success( $attachment ); } /** * Handles querying attachments via AJAX. * * @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(); $keys = array( 's', 'order', 'orderby', 'posts_per_page', 'paged', 'post_mime_type', 'post_parent', 'author', 'post__in', 'post__not_in', 'year', 'monthnum', ); foreach ( get_taxonomies_for_attachments( 'objects' ) as $t ) { if ( $t->query_var && isset( $query[ $t->query_var ] ) ) { $keys[] = $t->query_var; } } $query = array_intersect_key( $query, array_flip( $keys ) ); $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 query clauses to include filenames. if ( isset( $query['s'] ) ) { add_filter( 'wp_allow_query_attachment_by_filename', '__return_true' ); } /** * Filters 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 ); $attachments_query = new WP_Query( $query ); update_post_parent_caches( $attachments_query->posts ); $posts = array_map( 'wp_prepare_attachment_for_js', $attachments_query->posts ); $posts = array_filter( $posts ); $total_posts = $attachments_query->found_posts; if ( $total_posts < 1 ) { // Out-of-bounds, run the query again without LIMIT for total count. unset( $query['paged'] ); $count_query = new WP_Query(); $count_query->query( $query ); $total_posts = $count_query->found_posts; } $posts_per_page = (int) $attachments_query->get( 'posts_per_page' ); $max_pages = $posts_per_page ? (int) ceil( $total_posts / $posts_per_page ) : 0; header( 'X-WP-Total: ' . (int) $total_posts ); header( 'X-WP-TotalPages: ' . $max_pages ); wp_send_json_success( $posts ); } /** * Handles updating attachment attributes via AJAX. * * @since 3.5.0 */ function wp_ajax_save_attachment() { if ( ! isset( $_REQUEST['id'] ) || ! isset( $_REQUEST['changes'] ) ) { wp_send_json_error(); } $id = absint( $_REQUEST['id'] ); if ( ! $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['parent'] ) ) { $post['post_parent'] = $changes['parent']; } 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 ( get_post_meta( $id, '_wp_attachment_image_alt', true ) !== $alt ) { $alt = wp_strip_all_tags( $alt, true ); update_post_meta( $id, '_wp_attachment_image_alt', wp_slash( $alt ) ); } } if ( wp_attachment_is( 'audio', $post['ID'] ) ) { $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(); } /** * Handles saving backward compatible attachment attributes via AJAX. * * @since 3.5.0 */ function wp_ajax_save_attachment_compat() { if ( ! isset( $_REQUEST['id'] ) ) { wp_send_json_error(); } $id = absint( $_REQUEST['id'] ); if ( ! $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 ); } } $attachment = wp_prepare_attachment_for_js( $id ); if ( ! $attachment ) { wp_send_json_error(); } wp_send_json_success( $attachment ); } /** * Handles saving the attachment order via AJAX. * * @since 3.5.0 */ function wp_ajax_save_attachment_order() { if ( ! isset( $_REQUEST['post_id'] ) ) { wp_send_json_error(); } $post_id = absint( $_REQUEST['post_id'] ); if ( ! $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; } $attachment = get_post( $attachment_id ); if ( ! $attachment ) { continue; } if ( 'attachment' !== $attachment->post_type ) { continue; } wp_update_post( array( 'ID' => $attachment_id, 'menu_order' => $menu_order, ) ); } wp_send_json_success(); } /** * Handles sending an attachment to the editor via AJAX. * * Generates the HTML to send an attachment to the editor. * Backward compatible with the {@see '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 = (int) $attachment['id']; $post = get_post( $id ); if ( ! $post ) { 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. $insert_into_post_id = (int) $_POST['post_id']; if ( 0 === $post->post_parent && $insert_into_post_id ) { wp_update_post( array( 'ID' => $id, 'post_parent' => $insert_into_post_id, ) ); } } $url = empty( $attachment['url'] ) ? '' : $attachment['url']; $rel = ( str_contains( $url, 'attachment_id' ) || get_attachment_link( $id ) === $url ); remove_filter( 'media_send_to_editor', 'image_media_send_to_editor' ); if ( str_starts_with( $post->post_mime_type, 'image' ) ) { $align = isset( $attachment['align'] ) ? $attachment['align'] : 'none'; $size = isset( $attachment['image-size'] ) ? $attachment['image-size'] : 'medium'; $alt = isset( $attachment['image_alt'] ) ? $attachment['image_alt'] : ''; // No whitespace-only captions. $caption = isset( $attachment['post_excerpt'] ) ? $attachment['post_excerpt'] : ''; if ( '' === trim( $caption ) ) { $caption = ''; } $title = ''; // We no longer insert title tags into <img> tags, as they are redundant. $html = get_image_send_to_editor( $id, $caption, $title, $align, $url, $rel, $size, $alt ); } elseif ( wp_attachment_is( 'video', $post ) || wp_attachment_is( 'audio', $post ) ) { $html = stripslashes_deep( $_POST['html'] ); } else { $html = isset( $attachment['post_title'] ) ? $attachment['post_title'] : ''; $rel = $rel ? ' rel="attachment wp-att-' . $id . '"' : ''; // Hard-coded string, $id is already sanitized. if ( ! empty( $url ) ) { $html = '<a href="' . esc_url( $url ) . '"' . $rel . '>' . $html . '</a>'; } } /** 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 ); } /** * Handles sending a link to the editor via AJAX. * * Generates the HTML to send a non-image embed link to the editor. * * Backward compatible with the following filters: * - file_send_to_editor_url * - audio_send_to_editor_url * - video_send_to_editor_url * * @since 3.5.0 * * @global WP_Post $post Global post object. * @global WP_Embed $wp_embed WordPress Embed object. */ function wp_ajax_send_link_to_editor() { global $post, $wp_embed; check_ajax_referer( 'media-send-to-editor', 'nonce' ); $src = wp_unslash( $_POST['src'] ); if ( ! $src ) { wp_send_json_error(); } if ( ! strpos( $src, '://' ) ) { $src = 'http://' . $src; } $src = sanitize_url( $src ); if ( ! $src ) { wp_send_json_error(); } $link_text = trim( wp_unslash( $_POST['link_text'] ) ); if ( ! $link_text ) { $link_text = 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 ( $link_text ) { $html = '<a href="' . esc_url( $src ) . '">' . $link_text . '</a>'; } else { $html = ''; } // Figure out what filter to run: $type = 'file'; $ext = preg_replace( '/^.+?\.([^.]+)$/', '$1', $src ); if ( $ext ) { $ext_type = wp_ext2type( $ext ); if ( '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, $link_text ); wp_send_json_success( $html ); } /** * Handles the Heartbeat API via AJAX. * * 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(); $data = array(); $nonce_state = wp_verify_nonce( $_POST['_nonce'], 'heartbeat-nonce' ); // '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'] ); } if ( 1 !== $nonce_state ) { /** * Filters the nonces to send to the New/Edit Post screen. * * @since 4.3.0 * * @param array $response The Heartbeat response. * @param array $data The $_POST data sent. * @param string $screen_id The screen ID. */ $response = apply_filters( 'wp_refresh_nonces', $response, $data, $screen_id ); if ( false === $nonce_state ) { // User is logged in but nonces have expired. $response['nonces_expired'] = true; wp_send_json( $response ); } } if ( ! empty( $data ) ) { /** * Filters the Heartbeat response received. * * @since 3.6.0 * * @param array $response The Heartbeat response. * @param array $data The $_POST data sent. * @param string $screen_id The screen ID. */ $response = apply_filters( 'heartbeat_received', $response, $data, $screen_id ); } /** * Filters the Heartbeat response sent. * * @since 3.6.0 * * @param array $response The Heartbeat response. * @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 $response The Heartbeat response. * @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 ); } /** * Handles getting revision diffs via AJAX. * * @since 3.6.0 */ function wp_ajax_get_revision_diffs() { require ABSPATH . 'wp-admin/includes/revision.php'; $post = get_post( (int) $_REQUEST['post_id'] ); if ( ! $post ) { wp_send_json_error(); } if ( ! current_user_can( 'edit_post', $post->ID ) ) { wp_send_json_error(); } // Really just pre-loading the cache here. $revisions = wp_get_post_revisions( $post->ID, array( 'check_enabled' => false ) ); if ( ! $revisions ) { wp_send_json_error(); } $return = array(); // Increase the script timeout limit to allow ample time for diff UI setup. if ( function_exists( 'set_time_limit' ) ) { set_time_limit( 5 * MINUTE_IN_SECONDS ); } 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 ); } /** * Handles auto-saving the selected color scheme for * a user's own profile via AJAX. * * @since 3.8.0 * * @global array $_wp_admin_css_colors */ 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(); } $previous_color_scheme = get_user_meta( get_current_user_id(), 'admin_color', true ); update_user_meta( get_current_user_id(), 'admin_color', $color_scheme ); wp_send_json_success( array( 'previousScheme' => 'admin-color-' . $previous_color_scheme, 'currentScheme' => 'admin-color-' . $color_scheme, ) ); } /** * Handles getting themes from themes_api() via AJAX. * * @since 3.9.0 * * @global array $themes_allowedtags * @global array $theme_field_defaults */ 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' => array_merge( (array) $theme_field_defaults, array( 'reviews_url' => true, // Explicitly request the reviews URL to be linked from the Add Themes screen. ) ), ) ); if ( isset( $args['browse'] ) && 'favorites' === $args['browse'] && ! isset( $args['user'] ) ) { $user = get_user_option( 'wporg_favorites' ); if ( $user ) { $args['user'] = $user; } } $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' ); $installed_themes = search_theme_directories(); if ( false === $installed_themes ) { $installed_themes = array(); } foreach ( $installed_themes as $theme_slug => $theme_data ) { // Ignore child themes. if ( str_contains( $theme_slug, '/' ) ) { unset( $installed_themes[ $theme_slug ] ); } } 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 ); if ( current_user_can( 'switch_themes' ) ) { if ( is_multisite() ) { $theme->activate_url = add_query_arg( array( 'action' => 'enable', '_wpnonce' => wp_create_nonce( 'enable-theme_' . $theme->slug ), 'theme' => $theme->slug, ), network_admin_url( 'themes.php' ) ); } else { $theme->activate_url = add_query_arg( array( 'action' => 'activate', '_wpnonce' => wp_create_nonce( 'switch-theme_' . $theme->slug ), 'stylesheet' => $theme->slug, ), admin_url( 'themes.php' ) ); } } $is_theme_installed = array_key_exists( $theme->slug, $installed_themes ); // We only care about installed themes. $theme->block_theme = $is_theme_installed && wp_get_theme( $theme->slug )->is_block_theme(); if ( ! is_multisite() && current_user_can( 'edit_theme_options' ) && current_user_can( 'customize' ) ) { $customize_url = $theme->block_theme ? admin_url( 'site-editor.php' ) : wp_customize_url( $theme->slug ); $theme->customize_url = add_query_arg( array( 'return' => urlencode( network_admin_url( 'theme-install.php', 'relative' ) ), ), $customize_url ); } $theme->name = wp_kses( $theme->name, $themes_allowedtags ); $theme->author = wp_kses( $theme->author['display_name'], $themes_allowedtags ); $theme->version = wp_kses( $theme->version, $themes_allowedtags ); $theme->description = wp_kses( $theme->description, $themes_allowedtags ); $theme->stars = wp_star_rating( array( 'rating' => $theme->rating, 'type' => 'percent', 'number' => $theme->num_ratings, 'echo' => false, ) ); $theme->num_ratings = number_format_i18n( $theme->num_ratings ); $theme->preview_url = set_url_scheme( $theme->preview_url ); $theme->compatible_wp = is_wp_version_compatible( $theme->requires ); $theme->compatible_php = is_php_version_compatible( $theme->requires_php ); } wp_send_json_success( $api ); } /** * Applies [embed] Ajax handlers to a string. * * @since 4.0.0 * * @global WP_Post $post Global post object. * @global WP_Embed $wp_embed WordPress Embed object. * @global WP_Scripts $wp_scripts * @global int $content_width */ function wp_ajax_parse_embed() { global $post, $wp_embed, $content_width; if ( empty( $_POST['shortcode'] ) ) { wp_send_json_error(); } $post_id = isset( $_POST['post_ID'] ) ? (int) $_POST['post_ID'] : 0; if ( $post_id > 0 ) { $post = get_post( $post_id ); if ( ! $post || ! current_user_can( 'edit_post', $post->ID ) ) { wp_send_json_error(); } setup_postdata( $post ); } elseif ( ! current_user_can( 'edit_posts' ) ) { // See WP_oEmbed_Controller::get_proxy_item_permissions_check(). wp_send_json_error(); } $shortcode = wp_unslash( $_POST['shortcode'] ); preg_match( '/' . get_shortcode_regex() . '/s', $shortcode, $matches ); $atts = shortcode_parse_atts( $matches[3] ); if ( ! empty( $matches[5] ) ) { $url = $matches[5]; } elseif ( ! empty( $atts['src'] ) ) { $url = $atts['src']; } else { $url = ''; } $parsed = false; $wp_embed->return_false_on_fail = true; if ( 0 === $post_id ) { /* * Refresh oEmbeds cached outside of posts that are past their TTL. * Posts are excluded because they have separate logic for refreshing * their post meta caches. See WP_Embed::cache_oembed(). */ $wp_embed->usecache = false; } if ( is_ssl() && str_starts_with( $url, 'http://' ) ) { /* * 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; } } // Set $content_width so any embeds fit in the destination iframe. if ( isset( $_POST['maxwidth'] ) && is_numeric( $_POST['maxwidth'] ) && $_POST['maxwidth'] > 0 ) { if ( ! isset( $content_width ) ) { $content_width = (int) $_POST['maxwidth']; } else { $content_width = min( $content_width, (int) $_POST['maxwidth'] ); } } if ( $url && ! $parsed ) { $parsed = $wp_embed->run_shortcode( $shortcode ); } if ( ! $parsed ) { wp_send_json_error( array( 'type' => 'not-embeddable', /* translators: %s: URL that could not be embedded. */ 'message' => sprintf( __( '%s failed to embed.' ), '<code>' . esc_html( $url ) . '</code>' ), ) ); } if ( has_shortcode( $parsed, 'audio' ) || has_shortcode( $parsed, 'video' ) ) { $styles = ''; $mce_styles = wpview_media_sandbox_styles(); foreach ( $mce_styles as $style ) { $styles .= sprintf( '<link rel="stylesheet" href="%s" />', $style ); } $html = do_shortcode( $parsed ); global $wp_scripts; if ( ! empty( $wp_scripts ) ) { $wp_scripts->done = array(); } ob_start(); wp_print_scripts( array( 'mediaelement-vimeo', '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( '%<link [^>]*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.' ), ) ); } $return = array( 'body' => $parsed, 'attr' => $wp_embed->last_attr, ); if ( str_contains( $parsed, 'class="wp-embedded-content' ) ) { if ( defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ) { $script_src = includes_url( 'js/wp-embed.js' ); } else { $script_src = includes_url( 'js/wp-embed.min.js' ); } $return['head'] = '<script src="' . $script_src . '"></script>'; $return['sandbox'] = true; } wp_send_json_success( $return ); } /** * @since 4.0.0 * * @global WP_Post $post Global post object. * @global WP_Scripts $wp_scripts */ function wp_ajax_parse_media_shortcode() { global $post, $wp_scripts; if ( empty( $_POST['shortcode'] ) ) { wp_send_json_error(); } $shortcode = wp_unslash( $_POST['shortcode'] ); // Only process previews for media related shortcodes: $found_shortcodes = get_shortcode_tags_in_content( $shortcode ); $media_shortcodes = array( 'audio', 'embed', 'playlist', 'video', 'gallery', ); $other_shortcodes = array_diff( $found_shortcodes, $media_shortcodes ); if ( ! empty( $other_shortcodes ) ) { wp_send_json_error(); } if ( ! empty( $_POST['post_ID'] ) ) { $post = get_post( (int) $_POST['post_ID'] ); } // The embed shortcode requires a post. if ( ! $post || ! current_user_can( 'edit_post', $post->ID ) ) { if ( in_array( 'embed', $found_shortcodes, true ) ) { wp_send_json_error(); } } else { setup_postdata( $post ); } $parsed = do_shortcode( $shortcode ); if ( empty( $parsed ) ) { wp_send_json_error( array( 'type' => 'no-items', 'message' => __( 'No items found.' ), ) ); } $head = ''; $styles = wpview_media_sandbox_styles(); foreach ( $styles as $style ) { $head .= '<link type="text/css" rel="stylesheet" href="' . $style . '">'; } if ( ! empty( $wp_scripts ) ) { $wp_scripts->done = array(); } ob_start(); echo $parsed; if ( 'playlist' === $_REQUEST['type'] ) { wp_underscore_playlist_templates(); wp_print_scripts( 'wp-playlist' ); } else { wp_print_scripts( array( 'mediaelement-vimeo', 'wp-mediaelement' ) ); } wp_send_json_success( array( 'head' => $head, 'body' => ob_get_clean(), ) ); } /** * Handles destroying multiple open sessions for a user via AJAX. * * @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 ( get_current_user_id() === $user->ID ) { $sessions->destroy_others( wp_get_session_token() ); $message = __( 'You are now logged out everywhere else.' ); } else { $sessions->destroy_all(); /* translators: %s: User's display name. */ $message = sprintf( __( '%s has been logged out.' ), $user->display_name ); } wp_send_json_success( array( 'message' => $message ) ); } /** * Handles cropping an image via AJAX. * * @since 4.3.0 */ function wp_ajax_crop_image() { $attachment_id = absint( $_POST['id'] ); check_ajax_referer( 'image_editor-' . $attachment_id, 'nonce' ); if ( empty( $attachment_id ) || ! current_user_can( 'edit_post', $attachment_id ) ) { wp_send_json_error(); } $context = str_replace( '_', '-', $_POST['context'] ); $data = array_map( 'absint', $_POST['cropDetails'] ); $cropped = wp_crop_image( $attachment_id, $data['x1'], $data['y1'], $data['width'], $data['height'], $data['dst_width'], $data['dst_height'] ); if ( ! $cropped || is_wp_error( $cropped ) ) { wp_send_json_error( array( 'message' => __( 'Image could not be processed.' ) ) ); } switch ( $context ) { case 'site-icon': require_once ABSPATH . 'wp-admin/includes/class-wp-site-icon.php'; $wp_site_icon = new WP_Site_Icon(); // Skip creating a new attachment if the attachment is a Site Icon. if ( get_post_meta( $attachment_id, '_wp_attachment_context', true ) === $context ) { // Delete the temporary cropped file, we don't need it. wp_delete_file( $cropped ); // Additional sizes in wp_prepare_attachment_for_js(). add_filter( 'image_size_names_choose', array( $wp_site_icon, 'additional_sizes' ) ); break; } /** This filter is documented in wp-admin/includes/class-custom-image-header.php */ $cropped = apply_filters( 'wp_create_file_in_uploads', $cropped, $attachment_id ); // For replication. // Copy attachment properties. $attachment = wp_copy_parent_attachment_properties( $cropped, $attachment_id, $context ); // Update the attachment. add_filter( 'intermediate_image_sizes_advanced', array( $wp_site_icon, 'additional_sizes' ) ); $attachment_id = $wp_site_icon->insert_attachment( $attachment, $cropped ); remove_filter( 'intermediate_image_sizes_advanced', array( $wp_site_icon, 'additional_sizes' ) ); // Additional sizes in wp_prepare_attachment_for_js(). add_filter( 'image_size_names_choose', array( $wp_site_icon, 'additional_sizes' ) ); break; default: /** * Fires before a cropped image is saved. * * Allows to add filters to modify the way a cropped image is saved. * * @since 4.3.0 * * @param string $context The Customizer control requesting the cropped image. * @param int $attachment_id The attachment ID of the original image. * @param string $cropped Path to the cropped image file. */ do_action( 'wp_ajax_crop_image_pre_save', $context, $attachment_id, $cropped ); /** This filter is documented in wp-admin/includes/class-custom-image-header.php */ $cropped = apply_filters( 'wp_create_file_in_uploads', $cropped, $attachment_id ); // For replication. // Copy attachment properties. $attachment = wp_copy_parent_attachment_properties( $cropped, $attachment_id, $context ); $attachment_id = wp_insert_attachment( $attachment, $cropped ); $metadata = wp_generate_attachment_metadata( $attachment_id, $cropped ); /** * Filters the cropped image attachment metadata. * * @since 4.3.0 * * @see wp_generate_attachment_metadata() * * @param array $metadata Attachment metadata. */ $metadata = apply_filters( 'wp_ajax_cropped_attachment_metadata', $metadata ); wp_update_attachment_metadata( $attachment_id, $metadata ); /** * Filters the attachment ID for a cropped image. * * @since 4.3.0 * * @param int $attachment_id The attachment ID of the cropped image. * @param string $context The Customizer control requesting the cropped image. */ $attachment_id = apply_filters( 'wp_ajax_cropped_attachment_id', $attachment_id, $context ); } wp_send_json_success( wp_prepare_attachment_for_js( $attachment_id ) ); } /** * Handles generating a password via AJAX. * * @since 4.4.0 */ function wp_ajax_generate_password() { wp_send_json_success( wp_generate_password( 24 ) ); } /** * Handles generating a password in the no-privilege context via AJAX. * * @since 5.7.0 */ function wp_ajax_nopriv_generate_password() { wp_send_json_success( wp_generate_password( 24 ) ); } /** * Handles saving the user's WordPress.org username via AJAX. * * @since 4.4.0 */ function wp_ajax_save_wporg_username() { if ( ! current_user_can( 'install_themes' ) && ! current_user_can( 'install_plugins' ) ) { wp_send_json_error(); } check_ajax_referer( 'save_wporg_username_' . get_current_user_id() ); $username = isset( $_REQUEST['username'] ) ? wp_unslash( $_REQUEST['username'] ) : false; if ( ! $username ) { wp_send_json_error(); } wp_send_json_success( update_user_meta( get_current_user_id(), 'wporg_favorites', $username ) ); } /** * Handles installing a theme via AJAX. * * @since 4.6.0 * * @see Theme_Upgrader * * @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass. */ function wp_ajax_install_theme() { check_ajax_referer( 'updates' ); if ( empty( $_POST['slug'] ) ) { wp_send_json_error( array( 'slug' => '', 'errorCode' => 'no_theme_specified', 'errorMessage' => __( 'No theme specified.' ), ) ); } $slug = sanitize_key( wp_unslash( $_POST['slug'] ) ); $status = array( 'install' => 'theme', 'slug' => $slug, ); if ( ! current_user_can( 'install_themes' ) ) { $status['errorMessage'] = __( 'Sorry, you are not allowed to install themes on this site.' ); wp_send_json_error( $status ); } require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php'; require_once ABSPATH . 'wp-admin/includes/theme.php'; $api = themes_api( 'theme_information', array( 'slug' => $slug, 'fields' => array( 'sections' => false ), ) ); if ( is_wp_error( $api ) ) { $status['errorMessage'] = $api->get_error_message(); wp_send_json_error( $status ); } $skin = new WP_Ajax_Upgrader_Skin(); $upgrader = new Theme_Upgrader( $skin ); $result = $upgrader->install( $api->download_link ); if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) { $status['debug'] = $skin->get_upgrade_messages(); } if ( is_wp_error( $result ) ) { $status['errorCode'] = $result->get_error_code(); $status['errorMessage'] = $result->get_error_message(); wp_send_json_error( $status ); } elseif ( is_wp_error( $skin->result ) ) { $status['errorCode'] = $skin->result->get_error_code(); $status['errorMessage'] = $skin->result->get_error_message(); wp_send_json_error( $status ); } elseif ( $skin->get_errors()->has_errors() ) { $status['errorMessage'] = $skin->get_error_messages(); wp_send_json_error( $status ); } elseif ( is_null( $result ) ) { global $wp_filesystem; $status['errorCode'] = 'unable_to_connect_to_filesystem'; $status['errorMessage'] = __( 'Unable to connect to the filesystem. Please confirm your credentials.' ); // Pass through the error from WP_Filesystem if one was raised. if ( $wp_filesystem instanceof WP_Filesystem_Base && is_wp_error( $wp_filesystem->errors ) && $wp_filesystem->errors->has_errors() ) { $status['errorMessage'] = esc_html( $wp_filesystem->errors->get_error_message() ); } wp_send_json_error( $status ); } $status['themeName'] = wp_get_theme( $slug )->get( 'Name' ); if ( current_user_can( 'switch_themes' ) ) { if ( is_multisite() ) { $status['activateUrl'] = add_query_arg( array( 'action' => 'enable', '_wpnonce' => wp_create_nonce( 'enable-theme_' . $slug ), 'theme' => $slug, ), network_admin_url( 'themes.php' ) ); } else { $status['activateUrl'] = add_query_arg( array( 'action' => 'activate', '_wpnonce' => wp_create_nonce( 'switch-theme_' . $slug ), 'stylesheet' => $slug, ), admin_url( 'themes.php' ) ); } } $theme = wp_get_theme( $slug ); $status['blockTheme'] = $theme->is_block_theme(); if ( ! is_multisite() && current_user_can( 'edit_theme_options' ) && current_user_can( 'customize' ) ) { $status['customizeUrl'] = add_query_arg( array( 'return' => urlencode( network_admin_url( 'theme-install.php', 'relative' ) ), ), wp_customize_url( $slug ) ); } /* * See WP_Theme_Install_List_Table::_get_theme_status() if we wanted to check * on post-installation status. */ wp_send_json_success( $status ); } /** * Handles updating a theme via AJAX. * * @since 4.6.0 * * @see Theme_Upgrader * * @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass. */ function wp_ajax_update_theme() { check_ajax_referer( 'updates' ); if ( empty( $_POST['slug'] ) ) { wp_send_json_error( array( 'slug' => '', 'errorCode' => 'no_theme_specified', 'errorMessage' => __( 'No theme specified.' ), ) ); } $stylesheet = preg_replace( '/[^A-z0-9_\-]/', '', wp_unslash( $_POST['slug'] ) ); $status = array( 'update' => 'theme', 'slug' => $stylesheet, 'oldVersion' => '', 'newVersion' => '', ); if ( ! current_user_can( 'update_themes' ) ) { $status['errorMessage'] = __( 'Sorry, you are not allowed to update themes for this site.' ); wp_send_json_error( $status ); } $theme = wp_get_theme( $stylesheet ); if ( $theme->exists() ) { $status['oldVersion'] = $theme->get( 'Version' ); } require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php'; $current = get_site_transient( 'update_themes' ); if ( empty( $current ) ) { wp_update_themes(); } $skin = new WP_Ajax_Upgrader_Skin(); $upgrader = new Theme_Upgrader( $skin ); $result = $upgrader->bulk_upgrade( array( $stylesheet ) ); if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) { $status['debug'] = $skin->get_upgrade_messages(); } if ( is_wp_error( $skin->result ) ) { $status['errorCode'] = $skin->result->get_error_code(); $status['errorMessage'] = $skin->result->get_error_message(); wp_send_json_error( $status ); } elseif ( $skin->get_errors()->has_errors() ) { $status['errorMessage'] = $skin->get_error_messages(); wp_send_json_error( $status ); } elseif ( is_array( $result ) && ! empty( $result[ $stylesheet ] ) ) { // Theme is already at the latest version. if ( true === $result[ $stylesheet ] ) { $status['errorMessage'] = $upgrader->strings['up_to_date']; wp_send_json_error( $status ); } $theme = wp_get_theme( $stylesheet ); if ( $theme->exists() ) { $status['newVersion'] = $theme->get( 'Version' ); } wp_send_json_success( $status ); } elseif ( false === $result ) { global $wp_filesystem; $status['errorCode'] = 'unable_to_connect_to_filesystem'; $status['errorMessage'] = __( 'Unable to connect to the filesystem. Please confirm your credentials.' ); // Pass through the error from WP_Filesystem if one was raised. if ( $wp_filesystem instanceof WP_Filesystem_Base && is_wp_error( $wp_filesystem->errors ) && $wp_filesystem->errors->has_errors() ) { $status['errorMessage'] = esc_html( $wp_filesystem->errors->get_error_message() ); } wp_send_json_error( $status ); } // An unhandled error occurred. $status['errorMessage'] = __( 'Theme update failed.' ); wp_send_json_error( $status ); } /** * Handles deleting a theme via AJAX. * * @since 4.6.0 * * @see delete_theme() * * @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass. */ function wp_ajax_delete_theme() { check_ajax_referer( 'updates' ); if ( empty( $_POST['slug'] ) ) { wp_send_json_error( array( 'slug' => '', 'errorCode' => 'no_theme_specified', 'errorMessage' => __( 'No theme specified.' ), ) ); } $stylesheet = preg_replace( '/[^A-z0-9_\-]/', '', wp_unslash( $_POST['slug'] ) ); $status = array( 'delete' => 'theme', 'slug' => $stylesheet, ); if ( ! current_user_can( 'delete_themes' ) ) { $status['errorMessage'] = __( 'Sorry, you are not allowed to delete themes on this site.' ); wp_send_json_error( $status ); } if ( ! wp_get_theme( $stylesheet )->exists() ) { $status['errorMessage'] = __( 'The requested theme does not exist.' ); wp_send_json_error( $status ); } // Check filesystem credentials. `delete_theme()` will bail otherwise. $url = wp_nonce_url( 'themes.php?action=delete&stylesheet=' . urlencode( $stylesheet ), 'delete-theme_' . $stylesheet ); ob_start(); $credentials = request_filesystem_credentials( $url ); ob_end_clean(); if ( false === $credentials || ! WP_Filesystem( $credentials ) ) { global $wp_filesystem; $status['errorCode'] = 'unable_to_connect_to_filesystem'; $status['errorMessage'] = __( 'Unable to connect to the filesystem. Please confirm your credentials.' ); // Pass through the error from WP_Filesystem if one was raised. if ( $wp_filesystem instanceof WP_Filesystem_Base && is_wp_error( $wp_filesystem->errors ) && $wp_filesystem->errors->has_errors() ) { $status['errorMessage'] = esc_html( $wp_filesystem->errors->get_error_message() ); } wp_send_json_error( $status ); } require_once ABSPATH . 'wp-admin/includes/theme.php'; $result = delete_theme( $stylesheet ); if ( is_wp_error( $result ) ) { $status['errorMessage'] = $result->get_error_message(); wp_send_json_error( $status ); } elseif ( false === $result ) { $status['errorMessage'] = __( 'Theme could not be deleted.' ); wp_send_json_error( $status ); } wp_send_json_success( $status ); } /** * Handles installing a plugin via AJAX. * * @since 4.6.0 * * @see Plugin_Upgrader * * @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass. */ function wp_ajax_install_plugin() { check_ajax_referer( 'updates' ); if ( empty( $_POST['slug'] ) ) { wp_send_json_error( array( 'slug' => '', 'errorCode' => 'no_plugin_specified', 'errorMessage' => __( 'No plugin specified.' ), ) ); } $status = array( 'install' => 'plugin', 'slug' => sanitize_key( wp_unslash( $_POST['slug'] ) ), ); if ( ! current_user_can( 'install_plugins' ) ) { $status['errorMessage'] = __( 'Sorry, you are not allowed to install plugins on this site.' ); wp_send_json_error( $status ); } require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php'; require_once ABSPATH . 'wp-admin/includes/plugin-install.php'; $api = plugins_api( 'plugin_information', array( 'slug' => sanitize_key( wp_unslash( $_POST['slug'] ) ), 'fields' => array( 'sections' => false, ), ) ); if ( is_wp_error( $api ) ) { $status['errorMessage'] = $api->get_error_message(); wp_send_json_error( $status ); } $status['pluginName'] = $api->name; $skin = new WP_Ajax_Upgrader_Skin(); $upgrader = new Plugin_Upgrader( $skin ); $result = $upgrader->install( $api->download_link ); if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) { $status['debug'] = $skin->get_upgrade_messages(); } if ( is_wp_error( $result ) ) { $status['errorCode'] = $result->get_error_code(); $status['errorMessage'] = $result->get_error_message(); wp_send_json_error( $status ); } elseif ( is_wp_error( $skin->result ) ) { $status['errorCode'] = $skin->result->get_error_code(); $status['errorMessage'] = $skin->result->get_error_message(); wp_send_json_error( $status ); } elseif ( $skin->get_errors()->has_errors() ) { $status['errorMessage'] = $skin->get_error_messages(); wp_send_json_error( $status ); } elseif ( is_null( $result ) ) { global $wp_filesystem; $status['errorCode'] = 'unable_to_connect_to_filesystem'; $status['errorMessage'] = __( 'Unable to connect to the filesystem. Please confirm your credentials.' ); // Pass through the error from WP_Filesystem if one was raised. if ( $wp_filesystem instanceof WP_Filesystem_Base && is_wp_error( $wp_filesystem->errors ) && $wp_filesystem->errors->has_errors() ) { $status['errorMessage'] = esc_html( $wp_filesystem->errors->get_error_message() ); } wp_send_json_error( $status ); } $install_status = install_plugin_install_status( $api ); $pagenow = isset( $_POST['pagenow'] ) ? sanitize_key( $_POST['pagenow'] ) : ''; // If installation request is coming from import page, do not return network activation link. $plugins_url = ( 'import' === $pagenow ) ? admin_url( 'plugins.php' ) : network_admin_url( 'plugins.php' ); if ( current_user_can( 'activate_plugin', $install_status['file'] ) && is_plugin_inactive( $install_status['file'] ) ) { $status['activateUrl'] = add_query_arg( array( '_wpnonce' => wp_create_nonce( 'activate-plugin_' . $install_status['file'] ), 'action' => 'activate', 'plugin' => $install_status['file'], ), $plugins_url ); } if ( is_multisite() && current_user_can( 'manage_network_plugins' ) && 'import' !== $pagenow ) { $status['activateUrl'] = add_query_arg( array( 'networkwide' => 1 ), $status['activateUrl'] ); } wp_send_json_success( $status ); } /** * Handles activating a plugin via AJAX. * * @since 6.5.0 */ function wp_ajax_activate_plugin() { check_ajax_referer( 'updates' ); if ( empty( $_POST['name'] ) || empty( $_POST['slug'] ) || empty( $_POST['plugin'] ) ) { wp_send_json_error( array( 'slug' => '', 'pluginName' => '', 'plugin' => '', 'errorCode' => 'no_plugin_specified', 'errorMessage' => __( 'No plugin specified.' ), ) ); } $status = array( 'activate' => 'plugin', 'slug' => wp_unslash( $_POST['slug'] ), 'pluginName' => wp_unslash( $_POST['name'] ), 'plugin' => wp_unslash( $_POST['plugin'] ), ); if ( ! current_user_can( 'activate_plugin', $status['plugin'] ) ) { $status['errorMessage'] = __( 'Sorry, you are not allowed to activate plugins on this site.' ); wp_send_json_error( $status ); } if ( is_plugin_active( $status['plugin'] ) ) { $status['errorMessage'] = sprintf( /* translators: %s: Plugin name. */ __( '%s is already active.' ), $status['pluginName'] ); } $activated = activate_plugin( $status['plugin'] ); if ( is_wp_error( $activated ) ) { $status['errorMessage'] = $activated->get_error_message(); wp_send_json_error( $status ); } wp_send_json_success( $status ); } /** * Handles updating a plugin via AJAX. * * @since 4.2.0 * * @see Plugin_Upgrader * * @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass. */ function wp_ajax_update_plugin() { check_ajax_referer( 'updates' ); if ( empty( $_POST['plugin'] ) || empty( $_POST['slug'] ) ) { wp_send_json_error( array( 'slug' => '', 'errorCode' => 'no_plugin_specified', 'errorMessage' => __( 'No plugin specified.' ), ) ); } $plugin = plugin_basename( sanitize_text_field( wp_unslash( $_POST['plugin'] ) ) ); $status = array( 'update' => 'plugin', 'slug' => sanitize_key( wp_unslash( $_POST['slug'] ) ), 'oldVersion' => '', 'newVersion' => '', ); if ( ! current_user_can( 'update_plugins' ) || 0 !== validate_file( $plugin ) ) { $status['errorMessage'] = __( 'Sorry, you are not allowed to update plugins for this site.' ); wp_send_json_error( $status ); } $plugin_data = get_plugin_data( WP_PLUGIN_DIR . '/' . $plugin ); $status['plugin'] = $plugin; $status['pluginName'] = $plugin_data['Name']; if ( $plugin_data['Version'] ) { /* translators: %s: Plugin version. */ $status['oldVersion'] = sprintf( __( 'Version %s' ), $plugin_data['Version'] ); } require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php'; wp_update_plugins(); $skin = new WP_Ajax_Upgrader_Skin(); $upgrader = new Plugin_Upgrader( $skin ); $result = $upgrader->bulk_upgrade( array( $plugin ) ); if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) { $status['debug'] = $skin->get_upgrade_messages(); } if ( is_wp_error( $skin->result ) ) { $status['errorCode'] = $skin->result->get_error_code(); $status['errorMessage'] = $skin->result->get_error_message(); wp_send_json_error( $status ); } elseif ( $skin->get_errors()->has_errors() ) { $status['errorMessage'] = $skin->get_error_messages(); wp_send_json_error( $status ); } elseif ( is_array( $result ) && ! empty( $result[ $plugin ] ) ) { /* * Plugin is already at the latest version. * * This may also be the return value if the `update_plugins` site transient is empty, * e.g. when you update two plugins in quick succession before the transient repopulates. * * Preferably something can be done to ensure `update_plugins` isn't empty. * For now, surface some sort of error here. */ if ( true === $result[ $plugin ] ) { $status['errorMessage'] = $upgrader->strings['up_to_date']; wp_send_json_error( $status ); } $plugin_data = get_plugins( '/' . $result[ $plugin ]['destination_name'] ); $plugin_data = reset( $plugin_data ); if ( $plugin_data['Version'] ) { /* translators: %s: Plugin version. */ $status['newVersion'] = sprintf( __( 'Version %s' ), $plugin_data['Version'] ); } wp_send_json_success( $status ); } elseif ( false === $result ) { global $wp_filesystem; $status['errorCode'] = 'unable_to_connect_to_filesystem'; $status['errorMessage'] = __( 'Unable to connect to the filesystem. Please confirm your credentials.' ); // Pass through the error from WP_Filesystem if one was raised. if ( $wp_filesystem instanceof WP_Filesystem_Base && is_wp_error( $wp_filesystem->errors ) && $wp_filesystem->errors->has_errors() ) { $status['errorMessage'] = esc_html( $wp_filesystem->errors->get_error_message() ); } wp_send_json_error( $status ); } // An unhandled error occurred. $status['errorMessage'] = __( 'Plugin update failed.' ); wp_send_json_error( $status ); } /** * Handles deleting a plugin via AJAX. * * @since 4.6.0 * * @see delete_plugins() * * @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass. */ function wp_ajax_delete_plugin() { check_ajax_referer( 'updates' ); if ( empty( $_POST['slug'] ) || empty( $_POST['plugin'] ) ) { wp_send_json_error( array( 'slug' => '', 'errorCode' => 'no_plugin_specified', 'errorMessage' => __( 'No plugin specified.' ), ) ); } $plugin = plugin_basename( sanitize_text_field( wp_unslash( $_POST['plugin'] ) ) ); $status = array( 'delete' => 'plugin', 'slug' => sanitize_key( wp_unslash( $_POST['slug'] ) ), ); if ( ! current_user_can( 'delete_plugins' ) || 0 !== validate_file( $plugin ) ) { $status['errorMessage'] = __( 'Sorry, you are not allowed to delete plugins for this site.' ); wp_send_json_error( $status ); } $plugin_data = get_plugin_data( WP_PLUGIN_DIR . '/' . $plugin ); $status['plugin'] = $plugin; $status['pluginName'] = $plugin_data['Name']; if ( is_plugin_active( $plugin ) ) { $status['errorMessage'] = __( 'You cannot delete a plugin while it is active on the main site.' ); wp_send_json_error( $status ); } // Check filesystem credentials. `delete_plugins()` will bail otherwise. $url = wp_nonce_url( 'plugins.php?action=delete-selected&verify-delete=1&checked[]=' . $plugin, 'bulk-plugins' ); ob_start(); $credentials = request_filesystem_credentials( $url ); ob_end_clean(); if ( false === $credentials || ! WP_Filesystem( $credentials ) ) { global $wp_filesystem; $status['errorCode'] = 'unable_to_connect_to_filesystem'; $status['errorMessage'] = __( 'Unable to connect to the filesystem. Please confirm your credentials.' ); // Pass through the error from WP_Filesystem if one was raised. if ( $wp_filesystem instanceof WP_Filesystem_Base && is_wp_error( $wp_filesystem->errors ) && $wp_filesystem->errors->has_errors() ) { $status['errorMessage'] = esc_html( $wp_filesystem->errors->get_error_message() ); } wp_send_json_error( $status ); } $result = delete_plugins( array( $plugin ) ); if ( is_wp_error( $result ) ) { $status['errorMessage'] = $result->get_error_message(); wp_send_json_error( $status ); } elseif ( false === $result ) { $status['errorMessage'] = __( 'Plugin could not be deleted.' ); wp_send_json_error( $status ); } wp_send_json_success( $status ); } /** * Handles searching plugins via AJAX. * * @since 4.6.0 * * @global string $s Search term. */ function wp_ajax_search_plugins() { check_ajax_referer( 'updates' ); // Ensure after_plugin_row_{$plugin_file} gets hooked. wp_plugin_update_rows(); $pagenow = isset( $_POST['pagenow'] ) ? sanitize_key( $_POST['pagenow'] ) : ''; if ( 'plugins-network' === $pagenow || 'plugins' === $pagenow ) { set_current_screen( $pagenow ); } /** @var WP_Plugins_List_Table $wp_list_table */ $wp_list_table = _get_list_table( 'WP_Plugins_List_Table', array( 'screen' => get_current_screen(), ) ); $status = array(); if ( ! $wp_list_table->ajax_user_can() ) { $status['errorMessage'] = __( 'Sorry, you are not allowed to manage plugins for this site.' ); wp_send_json_error( $status ); } // Set the correct requester, so pagination works. $_SERVER['REQUEST_URI'] = add_query_arg( array_diff_key( $_POST, array( '_ajax_nonce' => null, 'action' => null, ) ), network_admin_url( 'plugins.php', 'relative' ) ); $GLOBALS['s'] = wp_unslash( $_POST['s'] ); $wp_list_table->prepare_items(); ob_start(); $wp_list_table->display(); $status['count'] = count( $wp_list_table->items ); $status['items'] = ob_get_clean(); wp_send_json_success( $status ); } /** * Handles searching plugins to install via AJAX. * * @since 4.6.0 */ function wp_ajax_search_install_plugins() { check_ajax_referer( 'updates' ); $pagenow = isset( $_POST['pagenow'] ) ? sanitize_key( $_POST['pagenow'] ) : ''; if ( 'plugin-install-network' === $pagenow || 'plugin-install' === $pagenow ) { set_current_screen( $pagenow ); } /** @var WP_Plugin_Install_List_Table $wp_list_table */ $wp_list_table = _get_list_table( 'WP_Plugin_Install_List_Table', array( 'screen' => get_current_screen(), ) ); $status = array(); if ( ! $wp_list_table->ajax_user_can() ) { $status['errorMessage'] = __( 'Sorry, you are not allowed to manage plugins for this site.' ); wp_send_json_error( $status ); } // Set the correct requester, so pagination works. $_SERVER['REQUEST_URI'] = add_query_arg( array_diff_key( $_POST, array( '_ajax_nonce' => null, 'action' => null, ) ), network_admin_url( 'plugin-install.php', 'relative' ) ); $wp_list_table->prepare_items(); ob_start(); $wp_list_table->display(); $status['count'] = (int) $wp_list_table->get_pagination_arg( 'total_items' ); $status['items'] = ob_get_clean(); wp_send_json_success( $status ); } /** * Handles editing a theme or plugin file via AJAX. * * @since 4.9.0 * * @see wp_edit_theme_plugin_file() */ function wp_ajax_edit_theme_plugin_file() { $r = wp_edit_theme_plugin_file( wp_unslash( $_POST ) ); // Validation of args is done in wp_edit_theme_plugin_file(). if ( is_wp_error( $r ) ) { wp_send_json_error( array_merge( array( 'code' => $r->get_error_code(), 'message' => $r->get_error_message(), ), (array) $r->get_error_data() ) ); } else { wp_send_json_success( array( 'message' => __( 'File edited successfully.' ), ) ); } } /** * Handles exporting a user's personal data via AJAX. * * @since 4.9.6 */ function wp_ajax_wp_privacy_export_personal_data() { if ( empty( $_POST['id'] ) ) { wp_send_json_error( __( 'Missing request ID.' ) ); } $request_id = (int) $_POST['id']; if ( $request_id < 1 ) { wp_send_json_error( __( 'Invalid request ID.' ) ); } if ( ! current_user_can( 'export_others_personal_data' ) ) { wp_send_json_error( __( 'Sorry, you are not allowed to perform this action.' ) ); } check_ajax_referer( 'wp-privacy-export-personal-data-' . $request_id, 'security' ); // Get the request. $request = wp_get_user_request( $request_id ); if ( ! $request || 'export_personal_data' !== $request->action_name ) { wp_send_json_error( __( 'Invalid request type.' ) ); } $email_address = $request->email; if ( ! is_email( $email_address ) ) { wp_send_json_error( __( 'A valid email address must be given.' ) ); } if ( ! isset( $_POST['exporter'] ) ) { wp_send_json_error( __( 'Missing exporter index.' ) ); } $exporter_index = (int) $_POST['exporter']; if ( ! isset( $_POST['page'] ) ) { wp_send_json_error( __( 'Missing page index.' ) ); } $page = (int) $_POST['page']; $send_as_email = isset( $_POST['sendAsEmail'] ) ? ( 'true' === $_POST['sendAsEmail'] ) : false; /** * Filters the array of exporter callbacks. * * @since 4.9.6 * * @param array $args { * An array of callable exporters of personal data. Default empty array. * * @type array ...$0 { * Array of personal data exporters. * * @type callable $callback Callable exporter function that accepts an * email address and a page number and returns an * array of name => value pairs of personal data. * @type string $exporter_friendly_name Translated user facing friendly name for the * exporter. * } * } */ $exporters = apply_filters( 'wp_privacy_personal_data_exporters', array() ); if ( ! is_array( $exporters ) ) { wp_send_json_error( __( 'An exporter has improperly used the registration filter.' ) ); } // Do we have any registered exporters? if ( 0 < count( $exporters ) ) { if ( $exporter_index < 1 ) { wp_send_json_error( __( 'Exporter index cannot be negative.' ) ); } if ( $exporter_index > count( $exporters ) ) { wp_send_json_error( __( 'Exporter index is out of range.' ) ); } if ( $page < 1 ) { wp_send_json_error( __( 'Page index cannot be less than one.' ) ); } $exporter_keys = array_keys( $exporters ); $exporter_key = $exporter_keys[ $exporter_index - 1 ]; $exporter = $exporters[ $exporter_key ]; if ( ! is_array( $exporter ) ) { wp_send_json_error( /* translators: %s: Exporter array index. */ sprintf( __( 'Expected an array describing the exporter at index %s.' ), $exporter_key ) ); } if ( ! array_key_exists( 'exporter_friendly_name', $exporter ) ) { wp_send_json_error( /* translators: %s: Exporter array index. */ sprintf( __( 'Exporter array at index %s does not include a friendly name.' ), $exporter_key ) ); } $exporter_friendly_name = $exporter['exporter_friendly_name']; if ( ! array_key_exists( 'callback', $exporter ) ) { wp_send_json_error( /* translators: %s: Exporter friendly name. */ sprintf( __( 'Exporter does not include a callback: %s.' ), esc_html( $exporter_friendly_name ) ) ); } if ( ! is_callable( $exporter['callback'] ) ) { wp_send_json_error( /* translators: %s: Exporter friendly name. */ sprintf( __( 'Exporter callback is not a valid callback: %s.' ), esc_html( $exporter_friendly_name ) ) ); } $callback = $exporter['callback']; $response = call_user_func( $callback, $email_address, $page ); if ( is_wp_error( $response ) ) { wp_send_json_error( $response ); } if ( ! is_array( $response ) ) { wp_send_json_error( /* translators: %s: Exporter friendly name. */ sprintf( __( 'Expected response as an array from exporter: %s.' ), esc_html( $exporter_friendly_name ) ) ); } if ( ! array_key_exists( 'data', $response ) ) { wp_send_json_error( /* translators: %s: Exporter friendly name. */ sprintf( __( 'Expected data in response array from exporter: %s.' ), esc_html( $exporter_friendly_name ) ) ); } if ( ! is_array( $response['data'] ) ) { wp_send_json_error( /* translators: %s: Exporter friendly name. */ sprintf( __( 'Expected data array in response array from exporter: %s.' ), esc_html( $exporter_friendly_name ) ) ); } if ( ! array_key_exists( 'done', $response ) ) { wp_send_json_error( /* translators: %s: Exporter friendly name. */ sprintf( __( 'Expected done (boolean) in response array from exporter: %s.' ), esc_html( $exporter_friendly_name ) ) ); } } else { // No exporters, so we're done. $exporter_key = ''; $response = array( 'data' => array(), 'done' => true, ); } /** * Filters a page of personal data exporter data. Used to build the export report. * * Allows the export response to be consumed by destinations in addition to Ajax. * * @since 4.9.6 * * @param array $response The personal data for the given exporter and page number. * @param int $exporter_index The index of the exporter that provided this data. * @param string $email_address The email address associated with this personal data. * @param int $page The page number for this response. * @param int $request_id The privacy request post ID associated with this request. * @param bool $send_as_email Whether the final results of the export should be emailed to the user. * @param string $exporter_key The key (slug) of the exporter that provided this data. */ $response = apply_filters( 'wp_privacy_personal_data_export_page', $response, $exporter_index, $email_address, $page, $request_id, $send_as_email, $exporter_key ); if ( is_wp_error( $response ) ) { wp_send_json_error( $response ); } wp_send_json_success( $response ); } /** * Handles erasing personal data via AJAX. * * @since 4.9.6 */ function wp_ajax_wp_privacy_erase_personal_data() { if ( empty( $_POST['id'] ) ) { wp_send_json_error( __( 'Missing request ID.' ) ); } $request_id = (int) $_POST['id']; if ( $request_id < 1 ) { wp_send_json_error( __( 'Invalid request ID.' ) ); } // Both capabilities are required to avoid confusion, see `_wp_personal_data_removal_page()`. if ( ! current_user_can( 'erase_others_personal_data' ) || ! current_user_can( 'delete_users' ) ) { wp_send_json_error( __( 'Sorry, you are not allowed to perform this action.' ) ); } check_ajax_referer( 'wp-privacy-erase-personal-data-' . $request_id, 'security' ); // Get the request. $request = wp_get_user_request( $request_id ); if ( ! $request || 'remove_personal_data' !== $request->action_name ) { wp_send_json_error( __( 'Invalid request type.' ) ); } $email_address = $request->email; if ( ! is_email( $email_address ) ) { wp_send_json_error( __( 'Invalid email address in request.' ) ); } if ( ! isset( $_POST['eraser'] ) ) { wp_send_json_error( __( 'Missing eraser index.' ) ); } $eraser_index = (int) $_POST['eraser']; if ( ! isset( $_POST['page'] ) ) { wp_send_json_error( __( 'Missing page index.' ) ); } $page = (int) $_POST['page']; /** * Filters the array of personal data eraser callbacks. * * @since 4.9.6 * * @param array $args { * An array of callable erasers of personal data. Default empty array. * * @type array ...$0 { * Array of personal data exporters. * * @type callable $callback Callable eraser that accepts an email address and a page * number, and returns an array with boolean values for * whether items were removed or retained and any messages * from the eraser, as well as if additional pages are * available. * @type string $exporter_friendly_name Translated user facing friendly name for the eraser. * } * } */ $erasers = apply_filters( 'wp_privacy_personal_data_erasers', array() ); // Do we have any registered erasers? if ( 0 < count( $erasers ) ) { if ( $eraser_index < 1 ) { wp_send_json_error( __( 'Eraser index cannot be less than one.' ) ); } if ( $eraser_index > count( $erasers ) ) { wp_send_json_error( __( 'Eraser index is out of range.' ) ); } if ( $page < 1 ) { wp_send_json_error( __( 'Page index cannot be less than one.' ) ); } $eraser_keys = array_keys( $erasers ); $eraser_key = $eraser_keys[ $eraser_index - 1 ]; $eraser = $erasers[ $eraser_key ]; if ( ! is_array( $eraser ) ) { /* translators: %d: Eraser array index. */ wp_send_json_error( sprintf( __( 'Expected an array describing the eraser at index %d.' ), $eraser_index ) ); } if ( ! array_key_exists( 'eraser_friendly_name', $eraser ) ) { /* translators: %d: Eraser array index. */ wp_send_json_error( sprintf( __( 'Eraser array at index %d does not include a friendly name.' ), $eraser_index ) ); } $eraser_friendly_name = $eraser['eraser_friendly_name']; if ( ! array_key_exists( 'callback', $eraser ) ) { wp_send_json_error( sprintf( /* translators: %s: Eraser friendly name. */ __( 'Eraser does not include a callback: %s.' ), esc_html( $eraser_friendly_name ) ) ); } if ( ! is_callable( $eraser['callback'] ) ) { wp_send_json_error( sprintf( /* translators: %s: Eraser friendly name. */ __( 'Eraser callback is not valid: %s.' ), esc_html( $eraser_friendly_name ) ) ); } $callback = $eraser['callback']; $response = call_user_func( $callback, $email_address, $page ); if ( is_wp_error( $response ) ) { wp_send_json_error( $response ); } if ( ! is_array( $response ) ) { wp_send_json_error( sprintf( /* translators: 1: Eraser friendly name, 2: Eraser array index. */ __( 'Did not receive array from %1$s eraser (index %2$d).' ), esc_html( $eraser_friendly_name ), $eraser_index ) ); } if ( ! array_key_exists( 'items_removed', $response ) ) { wp_send_json_error( sprintf( /* translators: 1: Eraser friendly name, 2: Eraser array index. */ __( 'Expected items_removed key in response array from %1$s eraser (index %2$d).' ), esc_html( $eraser_friendly_name ), $eraser_index ) ); } if ( ! array_key_exists( 'items_retained', $response ) ) { wp_send_json_error( sprintf( /* translators: 1: Eraser friendly name, 2: Eraser array index. */ __( 'Expected items_retained key in response array from %1$s eraser (index %2$d).' ), esc_html( $eraser_friendly_name ), $eraser_index ) ); } if ( ! array_key_exists( 'messages', $response ) ) { wp_send_json_error( sprintf( /* translators: 1: Eraser friendly name, 2: Eraser array index. */ __( 'Expected messages key in response array from %1$s eraser (index %2$d).' ), esc_html( $eraser_friendly_name ), $eraser_index ) ); } if ( ! is_array( $response['messages'] ) ) { wp_send_json_error( sprintf( /* translators: 1: Eraser friendly name, 2: Eraser array index. */ __( 'Expected messages key to reference an array in response array from %1$s eraser (index %2$d).' ), esc_html( $eraser_friendly_name ), $eraser_index ) ); } if ( ! array_key_exists( 'done', $response ) ) { wp_send_json_error( sprintf( /* translators: 1: Eraser friendly name, 2: Eraser array index. */ __( 'Expected done flag in response array from %1$s eraser (index %2$d).' ), esc_html( $eraser_friendly_name ), $eraser_index ) ); } } else { // No erasers, so we're done. $eraser_key = ''; $response = array( 'items_removed' => false, 'items_retained' => false, 'messages' => array(), 'done' => true, ); } /** * Filters a page of personal data eraser data. * * Allows the erasure response to be consumed by destinations in addition to Ajax. * * @since 4.9.6 * * @param array $response { * The personal data for the given exporter and page number. * * @type bool $items_removed Whether items were actually removed or not. * @type bool $items_retained Whether items were retained or not. * @type string[] $messages An array of messages to add to the personal data export file. * @type bool $done Whether the eraser is finished or not. * } * @param int $eraser_index The index of the eraser that provided this data. * @param string $email_address The email address associated with this personal data. * @param int $page The page number for this response. * @param int $request_id The privacy request post ID associated with this request. * @param string $eraser_key The key (slug) of the eraser that provided this data. */ $response = apply_filters( 'wp_privacy_personal_data_erasure_page', $response, $eraser_index, $email_address, $page, $request_id, $eraser_key ); if ( is_wp_error( $response ) ) { wp_send_json_error( $response ); } wp_send_json_success( $response ); } /** * Handles site health checks on server communication via AJAX. * * @since 5.2.0 * @deprecated 5.6.0 Use WP_REST_Site_Health_Controller::test_dotorg_communication() * @see WP_REST_Site_Health_Controller::test_dotorg_communication() */ function wp_ajax_health_check_dotorg_communication() { _doing_it_wrong( 'wp_ajax_health_check_dotorg_communication', sprintf( // translators: 1: The Site Health action that is no longer used by core. 2: The new function that replaces it. __( 'The Site Health check for %1$s has been replaced with %2$s.' ), 'wp_ajax_health_check_dotorg_communication', 'WP_REST_Site_Health_Controller::test_dotorg_communication' ), '5.6.0' ); check_ajax_referer( 'health-check-site-status' ); if ( ! current_user_can( 'view_site_health_checks' ) ) { wp_send_json_error(); } if ( ! class_exists( 'WP_Site_Health' ) ) { require_once ABSPATH . 'wp-admin/includes/class-wp-site-health.php'; } $site_health = WP_Site_Health::get_instance(); wp_send_json_success( $site_health->get_test_dotorg_communication() ); } /** * Handles site health checks on background updates via AJAX. * * @since 5.2.0 * @deprecated 5.6.0 Use WP_REST_Site_Health_Controller::test_background_updates() * @see WP_REST_Site_Health_Controller::test_background_updates() */ function wp_ajax_health_check_background_updates() { _doing_it_wrong( 'wp_ajax_health_check_background_updates', sprintf( // translators: 1: The Site Health action that is no longer used by core. 2: The new function that replaces it. __( 'The Site Health check for %1$s has been replaced with %2$s.' ), 'wp_ajax_health_check_background_updates', 'WP_REST_Site_Health_Controller::test_background_updates' ), '5.6.0' ); check_ajax_referer( 'health-check-site-status' ); if ( ! current_user_can( 'view_site_health_checks' ) ) { wp_send_json_error(); } if ( ! class_exists( 'WP_Site_Health' ) ) { require_once ABSPATH . 'wp-admin/includes/class-wp-site-health.php'; } $site_health = WP_Site_Health::get_instance(); wp_send_json_success( $site_health->get_test_background_updates() ); } /** * Handles site health checks on loopback requests via AJAX. * * @since 5.2.0 * @deprecated 5.6.0 Use WP_REST_Site_Health_Controller::test_loopback_requests() * @see WP_REST_Site_Health_Controller::test_loopback_requests() */ function wp_ajax_health_check_loopback_requests() { _doing_it_wrong( 'wp_ajax_health_check_loopback_requests', sprintf( // translators: 1: The Site Health action that is no longer used by core. 2: The new function that replaces it. __( 'The Site Health check for %1$s has been replaced with %2$s.' ), 'wp_ajax_health_check_loopback_requests', 'WP_REST_Site_Health_Controller::test_loopback_requests' ), '5.6.0' ); check_ajax_referer( 'health-check-site-status' ); if ( ! current_user_can( 'view_site_health_checks' ) ) { wp_send_json_error(); } if ( ! class_exists( 'WP_Site_Health' ) ) { require_once ABSPATH . 'wp-admin/includes/class-wp-site-health.php'; } $site_health = WP_Site_Health::get_instance(); wp_send_json_success( $site_health->get_test_loopback_requests() ); } /** * Handles site health check to update the result status via AJAX. * * @since 5.2.0 */ function wp_ajax_health_check_site_status_result() { check_ajax_referer( 'health-check-site-status-result' ); if ( ! current_user_can( 'view_site_health_checks' ) ) { wp_send_json_error(); } set_transient( 'health-check-site-status-result', wp_json_encode( $_POST['counts'] ) ); wp_send_json_success(); } /** * Handles site health check to get directories and database sizes via AJAX. * * @since 5.2.0 * @deprecated 5.6.0 Use WP_REST_Site_Health_Controller::get_directory_sizes() * @see WP_REST_Site_Health_Controller::get_directory_sizes() */ function wp_ajax_health_check_get_sizes() { _doing_it_wrong( 'wp_ajax_health_check_get_sizes', sprintf( // translators: 1: The Site Health action that is no longer used by core. 2: The new function that replaces it. __( 'The Site Health check for %1$s has been replaced with %2$s.' ), 'wp_ajax_health_check_get_sizes', 'WP_REST_Site_Health_Controller::get_directory_sizes' ), '5.6.0' ); check_ajax_referer( 'health-check-site-status-result' ); if ( ! current_user_can( 'view_site_health_checks' ) || is_multisite() ) { wp_send_json_error(); } if ( ! class_exists( 'WP_Debug_Data' ) ) { require_once ABSPATH . 'wp-admin/includes/class-wp-debug-data.php'; } $sizes_data = WP_Debug_Data::get_sizes(); $all_sizes = array( 'raw' => 0 ); foreach ( $sizes_data as $name => $value ) { $name = sanitize_text_field( $name ); $data = array(); if ( isset( $value['size'] ) ) { if ( is_string( $value['size'] ) ) { $data['size'] = sanitize_text_field( $value['size'] ); } else { $data['size'] = (int) $value['size']; } } if ( isset( $value['debug'] ) ) { if ( is_string( $value['debug'] ) ) { $data['debug'] = sanitize_text_field( $value['debug'] ); } else { $data['debug'] = (int) $value['debug']; } } if ( ! empty( $value['raw'] ) ) { $data['raw'] = (int) $value['raw']; } $all_sizes[ $name ] = $data; } if ( isset( $all_sizes['total_size']['debug'] ) && 'not available' === $all_sizes['total_size']['debug'] ) { wp_send_json_error( $all_sizes ); } wp_send_json_success( $all_sizes ); } /** * Handles renewing the REST API nonce via AJAX. * * @since 5.3.0 */ function wp_ajax_rest_nonce() { exit( wp_create_nonce( 'wp_rest' ) ); } /** * Handles enabling or disable plugin and theme auto-updates via AJAX. * * @since 5.5.0 */ function wp_ajax_toggle_auto_updates() { check_ajax_referer( 'updates' ); if ( empty( $_POST['type'] ) || empty( $_POST['asset'] ) || empty( $_POST['state'] ) ) { wp_send_json_error( array( 'error' => __( 'Invalid data. No selected item.' ) ) ); } $asset = sanitize_text_field( urldecode( $_POST['asset'] ) ); if ( 'enable' !== $_POST['state'] && 'disable' !== $_POST['state'] ) { wp_send_json_error( array( 'error' => __( 'Invalid data. Unknown state.' ) ) ); } $state = $_POST['state']; if ( 'plugin' !== $_POST['type'] && 'theme' !== $_POST['type'] ) { wp_send_json_error( array( 'error' => __( 'Invalid data. Unknown type.' ) ) ); } $type = $_POST['type']; switch ( $type ) { case 'plugin': if ( ! current_user_can( 'update_plugins' ) ) { $error_message = __( 'Sorry, you are not allowed to modify plugins.' ); wp_send_json_error( array( 'error' => $error_message ) ); } $option = 'auto_update_plugins'; /** This filter is documented in wp-admin/includes/class-wp-plugins-list-table.php */ $all_items = apply_filters( 'all_plugins', get_plugins() ); break; case 'theme': if ( ! current_user_can( 'update_themes' ) ) { $error_message = __( 'Sorry, you are not allowed to modify themes.' ); wp_send_json_error( array( 'error' => $error_message ) ); } $option = 'auto_update_themes'; $all_items = wp_get_themes(); break; default: wp_send_json_error( array( 'error' => __( 'Invalid data. Unknown type.' ) ) ); } if ( ! array_key_exists( $asset, $all_items ) ) { $error_message = __( 'Invalid data. The item does not exist.' ); wp_send_json_error( array( 'error' => $error_message ) ); } $auto_updates = (array) get_site_option( $option, array() ); if ( 'disable' === $state ) { $auto_updates = array_diff( $auto_updates, array( $asset ) ); } else { $auto_updates[] = $asset; $auto_updates = array_unique( $auto_updates ); } // Remove items that have been deleted since the site option was last updated. $auto_updates = array_intersect( $auto_updates, array_keys( $all_items ) ); update_site_option( $option, $auto_updates ); wp_send_json_success(); } /** * Handles sending a password reset link via AJAX. * * @since 5.7.0 */ function wp_ajax_send_password_reset() { // Validate the nonce for this action. $user_id = isset( $_POST['user_id'] ) ? (int) $_POST['user_id'] : 0; check_ajax_referer( 'reset-password-for-' . $user_id, 'nonce' ); // Verify user capabilities. if ( ! current_user_can( 'edit_user', $user_id ) ) { wp_send_json_error( __( 'Cannot send password reset, permission denied.' ) ); } // Send the password reset link. $user = get_userdata( $user_id ); $results = retrieve_password( $user->user_login ); if ( true === $results ) { wp_send_json_success( /* translators: %s: User's display name. */ sprintf( __( 'A password reset link was emailed to %s.' ), $user->display_name ) ); } else { wp_send_json_error( $results->get_error_message() ); } }

A Beginner’s Facts Playing Casino Slots

BDM June 26, 2025 Betting for all Leave a comment 458 Views

How In Order To Play Slots Find Out The Rules Involving Slot Machines

Content

Slot Suggestion 4: Always Perform Within Your Price Range And Be Willing To Lower Your Wager Or Stop Enjoying If You Hit A Limit
Beginners Guide: How To Be Able To Play Slots For Dummies
Slot Tournaments
How To Participate In Slot Machines Online: Step By Stage Instructions For Beginners
Top Payment Approaches Available On Share Casino
Are There Diverse Types Of Slot Machines?
How To Enjoy Slot Machines In A Casino
How To Play Slot Machine Game Machines: A Step By Step Guide
How Developers Found Techniques To Increase Jackpots
Slot Tip 10: Take Advantage Of Bonuses In Addition To Promotions
What Takes Place When You” “Earn On A Slot Machine?
What Is Responsible Video Gaming And What Makes It Important?
Starting To Play Slots
How To Experience Slots: The Pokernews Guide
Find Your Web Slots Casino
Paylines
Understanding Slot Machines
The Future Of Traditional Casino Gambling
How To Try Out Casino Slots For Beginners
Gambling Help
Can I Play Online Slots For Cost-free?
How To Play Free Of Charge Slots To Succeed Real Money
For Progressive Slots
Betting
Top Online Poker Rooms
Basic Sport Concepts
Evoplay Unveils Tree Of Light: Fabled Fruits, An Exilerating Fantasy Slot Adventure
Bonus Features
Tips For Playing Slot Machine Machines
Progressive Jackpot Slots

In most modern devices, the number regarding lines that will pay off for” “a gamer depends on the particular number of credits (money or coin-in) wagered on a new particular spin. Those first machines will be paid out based about the mechanical features of the device. However, modern equipment not merely often employ video reels yet also make full use of random number generators instead of mechanical operation to determine champions.

The strategy of progressive jackpots dates back to be able to 1986 when the particular Megabucks machine seemed to be introduced, allowing earnings to accumulate until the player hit the jackpot. Today, many popular progressive slot machines are connected around multiple casinos, more increasing the jackpot feature potential. Classic slot machines, often referred to be able to as 3-reel slot machine games, provide quick plus satisfying action. These games are great for players who appreciate easy and fast-paced game play. With their standard design and mechanics, classic slots charm to both newbies and seasoned gamers. Typically, these slot machines feature one to three paylines, making them easy in order to understand and enjoy.

Slot Tip 4: Always Enjoy Within Your Budget And Become Willing To Lower Your Guess Or Stop Playing If You Struck A Limit

Bets can be as minimal as 1c each spin, playing with your local on line casino or online is usually easier than at any time to access your bank roll. Modern slot” “equipment games trace to large and unique machines manufactured by an enthusiastic mechanic (and tinkerer) of typically the late 19th millennium, Charles Fey. The machine that Fey created was very simple but complex in concept, and also this machine was the Liberty Bell. Note that these online slot machine game strategies work finest with games that have the lowest volatility since you will need to adjust the dimensions of the gamble as you proceed. Scatter symbols are usually special icons of which can fork out irregardless of their place on the reels, often triggering reward features mostbet.

It’s quick to customize amount of credits you’d like to participate in too.
Because of the long odds, seeking to win a huge jackpot is most likely unrealistic.
You’ll learn what to be able to expect and exactly how to adjust your current playing style to be able to the features of a particular slot device game.
For example, the Blood Suckers slot with the RTP of 98% returns to all players $98 of $100 expended inside; $2 is usually the house edge.
Therefore, carry out not rush to immediately place actual bets, but initial, get accustomed to the position controls.

Now, your house edge will vary with respect to the” “video game that players opt to play, and typically the total bet amount which is placed. Developers are continually striving to innovate and even create new ways for players to be able to win in a great attempt to retain player interest. One of those innovations seemed to be respins or cascading down symbols – which in turn are certain emblems which cause reels to respin to produce bigger wins or multipliers with outrageous symbols potentially. With all the success and recognition, there is usually one thing which includes always been some sort of given for position machines. In essence, they have been income generators regarding casinos for several years in spite of featuring large plus relatively frequent affiliate payouts. Once you’ve set your desired bet, press the “Spin” button or draw the lever (if available) to trigger the spin.

Beginners Guide: How To Play Slots Regarding Dummies

Keeping with the straightforward nature of playing slots at on the web casinos, if gamers have trouble, these types of websites offer consumer service. The special offers that online casinos offer purely relate with in-game aspects such as bonus money in addition to free spins for slots. The appeal of slot machines is the possiblity to hit big which has a jackpot payday. Over the years, developers have continued to find ways to boost the jackpots regarding players without stopping too much of the edge for your casino.

The most realistic strategy when betting on slot machines is bankroll management; its essence is usually rather simple. Each player can devote a certain amount on bets, in addition to spending it within one evening is a bad concept; a wise option is to split your bankroll volume into several parts. For example, following making a deposit, you can divide it into components simultaneously and use only one piece per day for making bets mostbet app.

Slot Tournaments

Today almost all progressives are linked electronically to other machines, with all credit played in the particular linked machines adding to a typical jackpot. Woe will be the person who hits three jackpot symbols about a buy-a-pay together with only one gold coin played — typically the player gets practically nothing back. On some sort of multiplier, payoffs are proportionate for each coin played — apart from, usually, for that leading jackpot.

Their slots selection includes progressive jackpot feature games, as well as a massive selection of all traditional slots you’d count on to find.
This is because slot games can be highly addicting and can prospect a player to chase their losses.
Nowadays, known because a philanthropist, Bill Redd (also referred to as Si) was among the Bally group’s designers in the 1971s.
With all the achievement and popularity, there will be one thing that has always been a new given for slot machine machines.

The wide collection of slot games, like exclusive titles, guarantees a varied plus exciting gaming knowledge. Here are many of the most effective online casinos for slot machine machines and precisely what causes them to be stand out there. A Night Using Cleo transports gamers to the planet of Ancient Egypt, complete with icons such as scarab beetles and the Eye of Horus. This game holds out for its unique bonus models, which add a great extra layer associated with excitement to the gameplay. Players can easily also make use of the chance feature, that allows all of them to attempt in order to double their winnings after any effective spin.

How To Play Slot Machines On-line: Step By Phase Instructions For Beginners

Among other things, site visitors will discover a day-to-day dose of content articles with the newest poker news, reside reporting from tournaments, exclusive videos, podcasts, reviews and bonus deals and so much more. With these kinds of eligibility factors and even any others you might find, your best choice is always in order to game details or even information before a person commit to enjoying. Sean Chaffin can be a longtime freelance article writer, editor, and former high school writing teacher. If you ever feel it’s learning to be a problem, urgently speak to a helpline in your country for immediate” “assistance. From in-depth testimonials and helpful guidelines to the latest reports, we’re here to be able to help you find a very good platforms and create informed decisions every step of the particular way.

They had been featuring three” “re-writing reels operated by way of a handle and a new single slot to be able to place a coin into. This equipment had only one shell out line, with each and every reel featuring several symbols – many you would acknowledge today – spades, hearts, diamonds, a new horseshoe, and the bell. This method requires players to be able to be more involved with every earn, so having some sort of calculator close by is recommended. Instead of changing the particular size of the particular bet based in won or lost rounds, the method has a set bet determined being a percentage of typically the available balance. Using 5% can become convenient, but all of us prefer staying secure and only wagering 3%. Slot machines top the record with regards to the almost all attractive casino game titles for gamblers, the two online and in land-based casinos.

Top Payment Procedures Available On Stake Casino

This feature means that you can spin a slot machine game game without seeking to connect to the particular game, but you is going to take care to be able to ensure you’re not really spending too much per spin. Wilds usually are special symbols that can replace other symbols on paylines to generate benefits. They are typically the most crucial symbols in the particular game and may also sometimes induce bonus features.

Additionally, players could unlock bonus capabilities through scatter signs” “that trigger special features.
If a person start thinking, “Well, they’re only credit, ” or even, “They’re already paid out for, ” it’s harder to persuade yourself to guard your bankroll.
At the core involving every authentic internet gambling platform is gaming software.
Players may also withdraw their funds by hitting “Cash Out and about. ” An individual can will certainly then receive a paper voucher together with the balance amount that can become used in another machine.

The user interface is definitely crafted to mirror the appearance and even ambiance of the conventional gambling establishment, featuring intuitive selections and controls. Volatility measures the frequency as well as the size regarding the wins that will the slots spend. For example, in case you prefer big is the winner less often, then you will want to perform an increased volatility slot; in case you prefer a low volatility slot then an individual will get smaller sized, more frequent is the winner. Commonly, this symbol is very totally different from the other symbols, therefore it is easy to distinguish besides making it simpler to understand the gameplay. Depending how many you obtain, could be dependent about the reward an individual are given; but like always, this may also vary per game.

Are There Different Types Of Slot Machines?

That about wraps upward our How in order to Play Slot Devices for Beginners guidebook. If you’ve appreciated it and are ready to try many free slots with regard to yourself, check out our slot reviews web page now. After a new few spins about those, you’ll grasp all of the particular concepts you’ve figured out about here. Paylines often confuse starter slots players the most, and no Exactly how to Play Slot machine Machines for Beginners guide would be full without explaining all of them further. Each symbol has a different worth and exactly how much you win for making combinations will be identified by the value of the symbols.

Don’t forget to be able to carefully experience almost all of the great print, because a few terms & situations can limit claiming, usage or cashing out of bonuses.
First, you should note that you can always find out exactly what bonus rounds and even special features the game has by viewing the paytable.
The goal with this specific strategy for earning at slots is usually to win back our losses.
Slot machines have are available a long approach since being simple machines and actually their role since store vending equipment.
Once you’ve established your desired gamble, press the “Spin” button or draw the lever (if available) to initiate the spin.

He’s written several books, generally on the topics of card counting and the different blackjack systems they employed over the particular years. He in addition runs a effective YouTube channel wherever he showcases various blackjack scenarios with beginner tips about how to overcome the dealer. Bets can be since little as 1c compared to typically the common minimum levels of $5 in order to $10 that stand and card games require.” “[newline]Please note that Slotsspot. com doesn’t work any gambling companies.

How To Play Slot Machines Inside A Casino

Bonus rounds can befuddle some new participants, so we believed we’d describe all of them here so that this specific How to Play Slot Machines intended for Beginners piece will be complete. When the cheats inserted particular numbers of coins in a certain order, the device would fork out. In jurisdictions with licensed casinos, the law takes a very dim view of cheating the video poker machines. Cheating licensed casinos is a criminal offence and will carry stiff prison terms. A zero-bonus balances the particular possibility of greater wins than you see in pick’em bonuses.

Over in britain, they include a couple of names for all of them, fruit machines in England and puggy in Scotland.
They are created to offer the chance-based, easy-to-play video gaming experience where gamers” “can go back home with potentially big wins using a simple rewrite.
However, you may stick to certain rules when playing particular titles; by using them, you could decrease risks and boost your winning possibilities.
The bonus round is usually activated by way of a minimum of three scatter symbols – but this can easily vary slot in order to slot.
Just such as the relaxed nature of how to play slot machines, players from all over have similar carefree love towards online game.

A gamer has numerous game titles available, something intended for every taste plus interest. However, whilst we can’t inform you how in order to play slot devices and win every time, we can show a couple of slot machine techniques that will assist you win more often. This is knowledge we’ve gained above decades, so bring it in and create sure you realize that before choosing which usually game to enjoy. Some slot machines in the 1960s and ‘70s had been vulnerable to ordinary magnets. Cheaters could make use of the magnets in order to make the fishing reels float freely alternatively of stopping about a spin.

How To Play Position Machines: A Step By Step Guide

Usually, classic, fruits, 3D, and progressive jackpot slot equipment are available with all online internet casinos. Old-fashioned slot equipment have only one horizontal payline, along which in turn three winning emblems (usually fruit icons or 7s) have to line upwards for you to be paid out. The vast bulk of today’s position machines, however, are multi-payline, with a few featuring up to 100 paylines or more.

So, let’s say that we all start with $100, which usually means our 1st bet is 3%.
It works generally the same manner regarding all slot devices, although there may become some variations based on the application developer.
These are the added features that assist to boost your payout in the particular game.
There is enough diversity and choice available amongst the slot machine game games industry.
“Each game comes with a unique combo of features like bonus rounds, thrilling varied animation alternatives, modern machines, multiplier machines, wild icons, and more.

The risk is that a new dry run can lead to a large bet that may be difficult in order to sustain. Some slot machine games feature progressive jackpots, where a small portion of each and every bet contributes to be able to a growing goldmine that can always be won by getting a specific combo or at unique. Find out about slot machines, how that they work and how to play slots for actual money with our own full guide.

How Developers Found Ways To Increase Jackpots

The worst factor you can apply at slot machines is always to chase loss by increasing the bet level. The chances are good that you may lose a lot more cash, and probably crazily run through the bankroll. When selecting an ideal bet level for your slot play, your decision is usually a trade-off among risk and payment.

The machine became known as the Liberty Bell and Fey spawned an evergrowing industry.
There are video games in penny, 2-cent, nickel, 10-cent, 1 fourth, dollar and also $100 denominations, and several machines allow players in order to choose which denomination they want to be able to use.
Nearly everyone is guilty associated with not reading Apple or Google words of service, but you shouldn’t are available to a casino with that same mindset.
The slot machine machine landscape has always been dependent upon the improvements and innovations involving software companies.
These slots are normally great for players who just want to have many fun create typically the most of their particular play.

It’s important to read the cup or help menus and learn precisely what type of device it is. The three major forms of reel-spinning slot machines are the multiplier, the buy-a-pay along with the progressive. Modern movie slots, of program, don’t have real coins but instead use virtual bridal party. To period pay-out odds, simply cash out your own slot credits straight into a real money balance. If you’re gunning for the big bucks, on the other hand, you would end up being wise to stick to high volatility slots.

Slot Hint 10: Take Benefit Of Bonuses And Even Promotions

In typically the rest, the recognition of attempting to be able to win at slot machines is surging to the point slot machine game play is rivaling table play. On those machines, the particular big payoffs have been $50 or $100 — not like typically the big numbers slot machine game players expect today. On systems of which electronically link equipment in several casinos, progressive jackpots reach huge amount of money. It’s quick — just drop coins into typically the slot and push the button or even pull the handle. Newcomers will find the particular personal interaction along with dealers or additional players at the particular tables intimidating — slot players prevent that. And besides, the greatest, most lifestyle-changing jackpots in typically the casino are available upon the slots.

The game software giant incorporated a 4-tier progressive goldmine with levels called mega, major, slight, and mini. In order to be eligible for the tiny jackpot – the lowest of the bunch, you must bet at least 1 cent on all twenty-five paylines (a minimal total of $0. 25). When this comes to video slots, these generally include multi-tier accelerating jackpots. Every video clip slot usually provides between 2 plus 12 progressive goldmine levels, and every level provides a established max bet an individual have to help to make in order to be able to be eligible.

What Occurs When You” “Get On A Slot Machine?

Each slot machine features a pay stand that shows just what symbols have to line up for a pay out of varying sums. These are organized with the greatest payouts, known because the jackpot, on top of the tables and subsequent payouts below those. A desk also includes an amount paid relying on the amount of credits a new player puts in the machine. A random number generator, or perhaps RNG, is a computer technology that is definitely used to determine payouts and jackpots. An RNG makes a sequence associated with simulated random amounts to determine exactly where those reels may land, and therefore which payouts” “are distributed to participants. Modern slot equipment have become high-tech machines with advanced online video, sound, graphics, in addition to gameplay.

So, you should recognize that playing slot machine machines are extremely basic – which is part of the reason players love these games.
Ordinarily, a traditional 3-reel slot will be an ideal opt for for the player who else likes a pared-down game with not any frills and everything perform.
For example, if you owned four matching emblems on reels one, two, four, in addition to five, and some sort of wild landed throughout the middle, you’d have a 5 symbol combination.
Usually, classic, fruit, 3D, and progressive jackpot slot machines are available from all online casinos.
You can typically do this inside the ‘account’ or ‘banking’ section of your own casino.

The scam artists would likely remove the magnetic only when the fishing reels had aligned throughout a winning combo. My top slot machine game machine strategy ideas – you’ll learned about below – consist of 12 do’s and even 6 don’ts that may assist you in answering the top ‘how to succeed at slot machines? Changing the developed payback percentage demands opening the device and replacing a computer chip. Server-based slot machines that will allow casinos in order to change payout proportions remotely, but there are still polices around making these kinds of changes. It’s certainly not unusual to proceed 20 or fifty or more draws without a one payout on a reel-spinning slot, although payouts tend to be more repeated on video video poker machines. Nor would it be unusual for a device to pay again 150 percent or more for many dozen pulls.

What Is Responsible Game Playing And What Makes It Essential?

Given that they are games of chance, playing slots has more to perform with luck as compared to strategy. Even so, there are several strategies you can employ to select some sort of slot machine that may likely pay. As you might have got heard before, a person can’t win large payouts at a intensifying slot if you don’t max the wager. A small section of your bet on a modern slot machine game goes straight into a jackpot or perhaps set of jackpots. The more participants wager on typically the progressive lot the bigger its jackpot gets.

Not all machines are made the similar way and programmed with the same RTP or payment percentage.
To place a bet on the slot machine, simply insert the coins or currency, select your bet size, and take the lever or perhaps press the rotate button.
Alternatively, you can start building up a bankroll by keeping aside small amounts through your savings and after that begin gambling after getting saved enough money for a certain variety of slot machines.
Let’s consider a closer look at the sorts of bonus icons you’re more likely to find in a regular online” “slot.

Other accelerating slots are connected within a casino, although some are interconnected across all internet casinos featuring that certain game. For a new genuine casino experience from the coziness of your abode, live dealer games certainly are a must consider. These games, including live blackjack, different roulette games, and baccarat, feature real human retailers who interact along with players via reside video streams. Players can participate in current gameplay, detailed with interpersonal interaction, creating a great immersive and genuine casino atmosphere. They” “come in various themes and give a stimulating blend of gameplay, visuals, plus the possibility for significant winnings. Demo methods are available regarding players to train and even familiarize themselves along with the game with out risking real cash.

Starting In Order To Play Slots

Yes, due to the fact demo versions permit you to test slots, check their particular characteristics, and do not risk your own funds. While wagering, it is essential to control yourself, while emotions often usually tend to get free from control. It is incredibly common when you strike a large reward and lose manage, forgetting about caution as well as the strategy you adhere to. Aside coming from these run-of-the-mill strategies, participate in slot machine tournaments whenever feasible.

Understanding design and even mechanics in the sport is essential ahead of spinning the fishing reels.
Don’t hesitate in order to ask tough queries; other gamblers are usually willing to out a poor apple.
The scam artists would remove the magnet only if the reels had aligned within a winning mixture.
Video slots are acknowledged for their advanced graphics and several paylines, which will enhance the chances regarding winning.
The paytable also shows the value of every symbol, indicating the amount you win intended for matching different icons on a payline.

When playing video poker machines online, you could decrease or raise your stake by simply clicking on typically the BET/STAKE button. For example, classic on the internet slots based about traditional slot equipment have 3 reels. Three-reel slot games put more importance on their leading jackpots but have got a lesser hit regularity with additional losing spins. If you’re pondering how to win at slots, three-reel position games do offer slot players typically the best possiblity to get big, but additionally the particular best chance in order to lose fast. Every good online gambling establishment will have an array of games to attempt at no cost or true money.

How To Experience Video Poker Machines: The Pokernews Guide

The microprocessors driving today’s machines are set with random-number generation devices that govern winning combinations. Many position players pump money into two or more adjacent devices at a time, although if the casino will be crowded and others are having problems finding places to play, limit yourself to one machine. Select your bets and paylines, and get a theme and bonus feature of which interests you. Online slot software will be governed by the Arbitrary Number Generator, or perhaps RNG. As quickly as you struck the ‘Spin’ key, an algorithm can determine where and if the reels can stop. The process is completely unique, and slot designers have their games examined before they hit the casino industry, along with periodically audited with time.

This network impact results in massive jackpots, some of which can become truly life-changing.
While learning how in order to play casino slot machine games, there are particular factors that you have to always keep in mind when choosing the proper slot machine game game.
Added for the paylines and payout structures, deciphering the bet measurements is likewise crucial, as it can have an effect on both the possible winnings and the particular overall game.
You may well also get a feeling whether it’s achievable to win in slot games and even if so how to win in slots.

Now, a new payout and goldmine is determined as quickly as the player hits the switch to spin the particular reels. If you’re purely after massive jackpots, you ought to consider playing the subsequent games. These top rated progressive jackpot slots have paid out many of the greatest online slot jackpots of all time.

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What Is Responsible Game Playing And What Makes It Essential?

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