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<?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' => '&mdash; ' . $taxonomy->labels->parent_item . ' &mdash;',
		)
	);

	$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();

	// Removes the script timeout limit by setting it to 0 allowing ample time for diff UI setup.
	if ( function_exists( 'set_time_limit' ) ) {
		set_time_limit( 0 );
	}

	foreach ( $_REQUEST['compare'] as $compare_key ) {
		list( $compare_from, $compare_to ) = explode( ':', $compare_key ); // from:to

		$return[] = array(
			'id'     => $compare_key,
			'fields' => wp_get_revision_ui_diff( $post, $compare_from, $compare_to ),
		);
	}
	wp_send_json_success( $return );
}

/**
 * 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() );
	}
}

京都の外壁塗装で選ぶべき評判・口コミの良い業者ランキング【2021年】

京都の外壁塗装で選ぶべき評判・口コミの良い業者ランキング【2021年】

京都の外壁塗装業者ランキング
京都の外壁塗装業者を評判・口コミから厳選

京都の外壁塗装業者を徹底調査!

京都で評判の良いおすすめ外壁塗装業者ランキング!

京都で評判・口コミの良い外壁塗装業者ランキング!

こんにちは、「京都のおすすめ外壁塗装業者を実績・評判から厳選して10社ご紹介」の管理人です。
この度は当サイトをご覧いただきき、本当にありがとうございます。

このサイトでは、京都で生まれ育った管理人である私が、地元である京都の優良外壁塗装業者をご紹介しています。
京都にお住まいの方で、外壁塗装を検討されている方にとって少しでもお役に立てれば幸いです。

まず、なぜ私が「京都の優良外壁塗装業者」を紹介しようと思ったのか? 手短にご説明させていただきます。

実は最近、たくさんの思い出が詰まった我が家の外壁塗装工事を行いました。

築年数は約20年程。 築20年を超えたくらいのタイミングで塗り替えをしないと家の寿命が短くなってしまうと聞いたこと。
そして何より、この20年一切外壁には手をかけていなかったので、汚れが目立ち美観がすごく悪くなっていたこと。
これが初めて外壁塗装の塗り替えを検討するきっかけとなりました。

私は性格的に凝り性で、何でも自分で調べないと気が済まない性格です。
自分が納得するまで徹底的に調査して、どこよりも良い塗装業者さんを見つけて塗り替えをしてもらおう!と意気込みました。

幸いにも、私は職業柄、そして長年京都に住み続けていることもあり、建築関係(大工さん・建築士さん・設計士さんなど)の知人が複数います。
実際に行った調査方法として、その建築関係の知人と直接会い、徹底的に塗装業界を含む建築業界の生の声を聞き込みました。

その結果、納得・安心して塗り替えをお願いできる塗装業者さんと出会うことができ、仕上がり・工事金額ともに満足のいく塗り替えをすることができました。

私と同じように、

・大切な家だからこそ、丁寧にしっかりと外壁塗装をしてほしい
・少しでも安くなれば嬉しいけど、手抜き工事はされたくない
・しっかり工事内容を説明してくれるような、信頼できる塗装業者を見つけたい

とお考えの方は、きっとこのサイトが京都での塗装業者探しの参考になると信じております。

ぜひ、京都にお住まいの方で、外壁塗装を検討されている方、優良塗装業者をお探しの方の参考にしてください。

京都で信頼できる外壁塗装業者を選ぶポイント

京都で信頼できる外壁塗装業者を選ぶポイント

今回、私が「優良外壁塗装業者の定義」として挙げたポイントは以下の3点です。

① 良心的な外壁塗装の金額設定
② 塗り替えの施工技術のレベルが高い
③ 対応品質・サポートがしっかりしている

恐らく皆さんにとっても、上記3点が揃っていれば優良塗装業者と言えるでしょう。
しかし、京都にも外壁塗装業者は数多くありますが、上記全てを満たす塗装業者というのは実は非常に少ないのです。

「値段が安くても、塗装工事自体の品質が悪い」
「仕上がりはすごく良いけど、工事金額が相場より明らかに高額」
「会社の規模は大きいが、施工は全て下請けに丸投げで対応が雑or下請け任せ」
など、どれか1つの項目は満たしても、他のポイントが良くないという塗装業者が圧倒的に多いのが現状です。

それでは、「優良外壁塗装業者の定義」をもう少し掘り下げてご説明します。

良心的な外壁塗装工事の金額設定

良心的な外壁塗装工事の金額設定

良心的な金額設定は、やはり皆さん重視したいポイントではないでしょうか?
私自身もここは絶対に外せないポイントでした。

一般的な戸建住宅の外壁塗装の価格相場は、おおよそ80万〜120万円とされています。
しかし、ただ安ければ良いという訳でない、施工品質が伴わないといけない、というのが難しいポイントです。

良心的な工事金額、その中で最大限高品質な塗り替えを行ってくれる塗装業者を見極めるポイント
それは、

営業マンやCM・チラシなど、過剰な営業費・宣伝広告費を使っていないかどうか、です。

外壁塗装業界は、大手メーカーから地元密着型の小さな塗装業者まで、お客さんの奪い合い状態となっています。
そのため、多くの塗装業者が他社より少しでも知名度を上げるため、少しでも多くのお客さんに知ってもらうために、多額の営業費・宣伝広告費を使っています。
大手メーカーであればCM、小さな塗装業者でも新聞チラシ、そして多くの営業マンを雇い、訪問販売による営業活動を行なっているのです。

もちろん塗装業者も生活がかかっているので、営業・宣伝を行い、少しでも仕事を受注しようとするのは当然です。
しかし問題は、多額の営業費・宣伝広告費は皆さんがお支払いになる工事代金に含まれる、という点です。

過剰な営業費・宣伝広告費を使っている塗装業者は、総じて塗り替えの工事金額が高額になりがちです。
こうなると、「なぜ私たちが工事には直接関係の無い営業費・宣伝広告費を支払わないといけないのか」と思ってしまいますよね。

本当に優良な塗装業者なら、広告を出したり営業マンを雇ったりしなくても評判・口コミでお客さんは自然と集まるのです。
ただでさえ価格相場の幅が広く、工事金額の内訳がわかりにくい外壁塗装です。
気になった塗装業者が、営業マンを雇っていないか、過剰な広告を出していないか、確認してみましょう。

塗り替えの施工技術のレベルが高い

塗り替えの施工技術のレベルが高い

施工技術・施工品質に関しては、気にはなりますがわかりにくいポイントです。
私もそうでしたが、普段塗装工事に馴染みが無い一般の方からすれば、実際に施工している姿を見ても、技術の良し悪しを見極めるのは難しいのです。

ここで1つの見極めポイントとなるのが、「一級塗装技能士」という資格です。

この「一級塗装技能士」は、塗装の実技試験と学科試験の両方に合格した塗装職人のみが持っている資格になります。
もちろんこれは国家資格です

資格を持っていない塗装職人さんでも、技術力が高い職人さんは沢山いらっしゃると思いますが、少なくともこの資格を持つ塗装職人さんは、一定水準以上の技術・知識を持つ塗装職人だと国から認められているのです。
気になった塗装業者に「一級塗装技能士」の取得者がいるのか、ぜひ確認しておきましょう。

塗装工事以外にも接客対応・サポートがしっかりしている

塗装工事以外にも対応・サポートがしっかりしている

外壁塗装を検討されている方の中で、外壁塗装について精通してるという方は少ないと思います。
なぜなら、外壁塗装の塗り替え周期は10~20年に一度、知らなくても当然なのです。
むしろ私のように、「初めて外壁塗装を検討している」という人の方が多いかもしれません。

一般の方が馴染みが薄い外壁塗装工事だからこそ、対応品質・サポートがしっかりしている塗装業者の方が安心して施工を任せられるでしょう。

打ち合わせや現地調査、見積もりの段階で、「わからないことはないか?心配な点はないか?」など、気遣ってくれる塗装業者は本当に心強いです。
初めて塗り替え工事を行う方なら、尚更安心して工事を任せることができます。
こちらの些細な疑問・質問にも、丁寧にしっかり対応してくれる塗装業者を選ぶようにしましょう。

また、不思議と対応品質が良い塗装業者は、総じて塗り替えの施工品質も高いです。
やはり、真面目に誠実に塗装と向き合っている業者は、その真面目さ・誠実さが対応品質にも現れるということですね。

京都で評判の良い外壁塗装業者はどこ?

京都で評判の良い外壁塗装業者はどこ?

以上のことを踏まえた上で私は、複数の塗装業者から見積もりをいただき、じっくりと見積書を比較検討し、塗装業者を吟味しました。
そしてその結果、京都の中でも大変素晴らしい外壁塗装業者さんと出会うことができ、仕上がり・価格ともに満足のいく外壁塗装工事をしていただくことができました。

ここでは、私が実際に塗り替えを依頼した塗装業者さんをはじめ、

・見積もりを依頼したり問い合わせたりした際に「3つの優良外壁塗装業者の定義を満たしている」と感じた塗装業者さん
・建築業界に在籍している知人の中で評判の良い塗装業者さん

この2点を含めた、京都で安心して塗装工事を任せることができる優良外壁塗装業者さんをランキング形式でご紹介させていただきます。

ぜひ京都にお住まいの方は、優良外壁塗装業者探しの参考にしてください。

京都で評判・口コミの良い外壁塗装業者ランキング
ランキング1位

京都で評判・口コミの良い外壁塗装業者ランキング

株式会社ウェルビーホーム

京都でおすすめの優良外壁塗装業者|株式会社ウェルビーホーム

株式会社ウェルビーホームさんの特徴

今回、私が実際に外壁塗装の塗り替えを依頼し、最も皆さんにもおすすめしたい外壁塗装業者さんは、「株式会社ウェルビーホーム」さんです。

ウェルビーホームさんは、代表の高橋さんが直接打ち合わせ・現場調査から実際の施工、そして工事後のアフターフォローまで全て対応してくれます。
また、高橋さんは建築士の資格も持っており、外壁塗装だけでなく住まいのこと全般に精通しておられるので、様々な観点から外壁塗装に関するアドバイスをしてくれます。
高橋さん自身とても笑顔の素敵な物腰の優しい方で、外壁塗装以外の住まいに関する質問にも、とてもわかりやすく丁寧に答えてくださいました。

見積書も、他のどの業者さんよりも丁寧で詳細に作ってくださり、工事内容が非常に明確で安心できたのがウェルビーホームさんを選んだ大きなポイントです。
さらに、ウェルビーホームさんは「一級塗装技能士」の資格を所持する職人さんが在籍しています。
施工してくれた職人さん方もとても愛想良くマナーもしっかりしており、塗り替えの仕上がり・接客応対ともに大満足の結果でした。

工事金額も他業者さんと比べても安価でしたし、是非とも京都で外壁塗装を検討されている方におすすめしたい優良塗装業者さんです。

株式会社ウェルビーホームさんを利用した方の評判・口コミ

40代・女性・京都市中京区在住

外壁塗装が初めての私にも非常に丁寧にご説明くださいました。
打ち合わせの時点から高橋社長の人柄の良さは伝わりました。
見積書の内容も細かく教えてくださり、初めての外壁塗装も安心して行えました、ありがとうございました。

50代・男性・京都府城陽市在住

問い合わせから施工までやりとりがとてもスムーズでした。
特に問い合わせから現地確認までの対応の早さは一番でした。
カラーシミュレーションなど、色決めも早かったです。
仕上がりも綺麗で大満足です。

50代・女性・大阪府寝屋川市在住

前回の工事代金より大幅に安かったので大変驚きました。
こんなことなら前回の塗装工事もウェルビーホームさんにお願いしたかったです。
次回の塗装もお願いしたいので、その際はよろしくお願いします。

京都で評判・口コミの良い外壁塗装業者ランキング
ランキング2位

京都で評判・口コミの良い外壁塗装業者ランキング

株式会社 佐藤塗装店

京都でおすすめの優良外壁塗装業者|株式会社 佐藤塗装店

株式会社 佐藤塗装店さんの特徴

「株式会社 佐藤塗装店」さんは、京都市西京区を中心に京都府全域、大阪府、滋賀県、奈良県と幅広いエリアで活躍する塗装業者さんです。

代表の佐藤さんは、「一級塗装技能士」の資格をはじめ、「一級左官技能士」「足場組立作業主任者」など、数多くの資格を有しておられます。
塗り替えを依頼する塗装業者さんが塗装だけでなく他の建築工事に関して精通していると、幅広い視点で的確なアドバイスをもらえるので嬉しいポイントです。

佐藤塗装店さんは、日本ペイント株式会社の特約店であり、使用する塗料も日本ペイントが主になりますので、塗料の単価や性能など、工事内容が非常に明確です。
見積もりの内容も分かりやすく明瞭会計で、職人さんの対応も非常に丁寧です。
京都の数ある塗装業者の中でも、5指に入る優良塗装業者さんです。

株式会社 佐藤塗装店さんを利用した方の評判・口コミ

50代・男性・京都市西京区在住

日本ペイントの塗料と聞いて安心しましたし、塗料の知識が豊富な営業さんで、勉強になりました。
価格がわかりやすく、日本ペイントの塗料を使用しているとのことで、決めました。
仕上がりにも大変満足です。

50代・女性・兵庫県神戸市在住

住まいのイメージを変えたく、相談に乗っていただきました。
熱心に対応して頂き、次回もお願いしたいと思います。
ありがとうございました。

40代・女性・大阪府堺市在住

塗装後玄関周りの色が気に入らず、再度塗り替えて頂き有難うございました。
大満足です。ご近所様をご紹介させて頂きます。

京都で評判・口コミの良い外壁塗装業者ランキング
ランキング3位

京都で評判・口コミの良い外壁塗装業者ランキング

株式会社 伊藤建装

京都でおすすめの優良外壁塗装業者|株式会社 伊藤建装

株式会社 伊藤建装さんの特徴

「株式会社 伊藤建装」さんは、京都市伏見区を中心に京都府・滋賀県・大阪府北部で活躍する塗装業者さんです。

「一級塗装技能士」の資格保有者だけでなく、外壁診断士や外壁アドバイザーなどの資格保有者が複数在籍しておられ、まさに外壁のプロフェッショナルです。
非常に多くの塗料・プランをご用意されており、外壁診断士さんがお住まい一軒一軒に合ったプランを提案してくれます。

非常に多くの職人さんが在籍され、宣伝・広告にも力を入れておられるので、工事金額自体は決して安価ではありません
しかし、外壁をしっかり診断してほしい・質の良い塗装工事をしてほしいといった、金額より施工品質重視の方にはおすすめの塗装業者さんです。

株式会社 伊藤建装さんを利用した方の評判・口コミ

40代・女性・京都市左京区在住

職人さん達はゴミの片付けもきっちりされていて良かったと思います。
女性の職人さんがいらっしゃったので驚きました。
足場を組む時なども男性と変わらない力強さで仕事をこなされていたので感心してました。

40代・男性・京都市西京区在住

細かいところまで綺麗にして頂き、ありがとうございました。
工事中、台風が来た時には困りましたが、結果的に綺麗に仕上げてくださり満足です。

50代・男性・滋賀県大津市在住

見積もりから施工まで、こまかいこだわりを重視してくださりありがとうございました。
家が生まれ変わったように綺麗になり感謝しています。
丁寧な職人さん達にも感謝です。

京都で評判・口コミの良い外壁塗装業者ランキング

京都でのおすすめ優良外壁塗装業者
1位:株式会社ウェルビーホーム
京都で評判・口コミの良い外壁塗装業者ランキング|株式会社ウェルビーホーム
京都でのおすすめ優良外壁塗装業者
2位:株式会社 佐藤塗装店
京京都で評判・口コミの良い外壁塗装業者ランキング|株式会社 佐藤塗装店
京都でのおすすめ優良外壁塗装業者
3位:株式会社 伊藤建装
京都で評判・口コミの良い外壁塗装業者ランキング|株式会社 伊藤建装

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