wp-search-suggest / wp-search-suggest.php

wp-search-suggest.php in WP Search Suggest 8, at wp-search-suggest.php

130 lines 3.8 KB

Raw Download Zip

1	<?php
2	/**
3	* Plugin Name: WP Search Suggest
4	* Plugin URI: http://en.obenland.it/wp-search-suggest/#utm_source=wordpress&utm_medium=plugin&utm_campaign=wp-search-suggest
5	* Description: Provides title suggestions while typing a search query, using the built-in jQuery suggest script.
6	* Version: 8
7	* Author: Konstantin Obenland
8	* Author URI: http://en.obenland.it/#utm_source=wordpress&utm_medium=plugin&utm_campaign=wp-search-suggest
9	* Text Domain: wp-search-suggest
10	* Domain Path: /lang
11	* License: GNU General Public License v2 or later
12	* License URI: http://www.gnu.org/licenses/gpl-2.0.html
13	*
14	* @package wp-search-suggest
15	*/
16
17	/**
18	* Registers the script and stylesheet.
19	*
20	* The scripts and stylesheets can easily be deregistered by calling
21	* <code>wp_deregister_script( 'wp-search-suggest' );</code> or
22	* <code>wp_deregister_style( 'wp-search-suggest' );</code> on the init hook.
23	*/
24	function wpss_init() {
25	$plugin_data = get_file_data( __FILE__, array( 'Version' => 'Version' ), 'plugin' );
26	$suffix = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '.dev' : '';
27
28	wp_register_script( 'wp-search-suggest', plugins_url( "js/wpss-search-suggest$suffix.js", __FILE__ ), array( 'suggest' ), $plugin_data['Version'], true );
29	wp_localize_script(
30	'wp-search-suggest',
31	'wpss_options',
32	array(
33	'url' => admin_url( 'admin-ajax.php' ),
34	'nonce' => wp_create_nonce( 'wpss-post-url' ),
35	'ajaxurl' => add_query_arg(
36	array(
37	'action' => 'wp-search-suggest',
38	'_wpnonce' => wp_create_nonce( 'wp-search-suggest' ),
39	),
40	admin_url( 'admin-ajax.php' )
41	),
42	)
43	);
44
45	wp_register_style( 'wp-search-suggest', plugins_url( "css/wpss-search-suggest$suffix.css", __FILE__ ), array(), $plugin_data['Version'] );
46	}
47	add_action( 'init', 'wpss_init', 9 );
48
49	/**
50	* Enqueues the script and style.
51	*/
52	function wpss_enqueue_scripts() {
53	wp_enqueue_script( 'wp-search-suggest' );
54	wp_enqueue_style( 'wp-search-suggest' );
55	}
56	add_action( 'wp_enqueue_scripts', 'wpss_enqueue_scripts' );
57
58	/**
59	* Handles the AJAX request for the search term.
60	*/
61	function wpss_ajax_response() {
62	check_ajax_referer( 'wp-search-suggest' );
63
64	// phpcs:ignore WordPress.Security.ValidatedSanitizedInput
65	$s = trim( stripslashes( $_GET['q'] ) );
66
67	$query_args = apply_filters(
68	'wpss_search_query_args',
69	array(
70	's' => $s,
71	'post_status' => 'publish',
72	),
73	$s
74	);
75
76	$query = new WP_Query( $query_args );
77
78	if ( $query->posts ) {
79	$results = apply_filters( 'wpss_search_results', wp_list_pluck( $query->posts, 'post_title' ), $query );
80	echo wp_kses_post( join( "\n", $results ) );
81	}
82
83	wp_die();
84	}
85	add_action( 'wp_ajax_wp-search-suggest', 'wpss_ajax_response' );
86	add_action( 'wp_ajax_nopriv_wp-search-suggest', 'wpss_ajax_response' );
87
88	/**
89	* Handles the AJAX request for a specific title.
90	*/
91	function wpss_post_url() {
92	check_ajax_referer( 'wpss-post-url' );
93
94	// phpcs:ignore WordPress.Security.ValidatedSanitizedInput
95	$post = wpss_get_post_id_from_title( trim( stripslashes( $_REQUEST['title'] ) ) );
96
97	if ( $post ) {
98	echo esc_url( get_permalink( $post ) );
99	}
100
101	wp_die();
102	}
103	add_action( 'wp_ajax_wpss-post-url', 'wpss_post_url' );
104	add_action( 'wp_ajax_nopriv_wpss-post-url', 'wpss_post_url' );
105
106	/**
107	* Examines a title and tries to determine the post ID it represents.\
108	*
109	* @param string $title Post title to check.
110	* @return int Post ID or 0 on failure.
111	*/
112	function wpss_get_post_id_from_title( $title ) {
113	global $wpdb;
114
115	$post_id = wp_cache_get( 'wpss_post_title' . $title, 'post' );
116
117	if ( false === $post_id ) {
118	$post_id = $wpdb->get_var( //phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery
119	$wpdb->prepare(
120	"SELECT ID FROM $wpdb->posts WHERE post_title = %s AND post_status = 'publish' LIMIT 1",
121	$title
122	)
123	);
124
125	wp_cache_set( 'wpss_post_title' . $title, $post_id, 'post' );
126	}
127
128	return absint( $post_id );
129	}
130