wp-optimize / includes / class-wp-optimize-performance.php

class-wp-optimize-performance.php in WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance 4.5.2, at includes/class-wp-optimize-performance.php

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1	<?php
2	if (!defined('ABSPATH')) die('No direct access allowed');
3
4	if (!class_exists('WP_Optimize_Performance')) :
5
6	class WP_Optimize_Performance {
7
8	/**
9	* WP_Optimize_404_Detector instance
10	*
11	* @var WP_Optimize_404_Detector
12	*/
13	private $obj_404_detector;
14
15	/**
16	* Constructor
17	*
18	* @param WP_Optimize_404_Detector $detector
19	*/
20	private function __construct($detector) {
21	$this->obj_404_detector = $detector;
22	}
23
24	/**
25	* Returns singleton instance
26	*
27	* @param WP_Optimize_404_Detector $detector Helper class to be able to call the 404 request detector
28	* @return WP_Optimize_Performance
29	*/
30	public static function get_instance($detector) {
31	static $instance = null;
32	if (null === $instance) {
33	$instance = new WP_Optimize_Performance($detector);
34	}
35	return $instance;
36	}
37
38	/**
39	* Hook content generators
40	*
41	* @return void
42	*/
43	public function init() {
44
45	add_filter('site_health_navigation_tabs', array($this, 'add_health_tab'));
46
47	add_action('site_health_tab_content', array($this, 'site_health_tab_content'));
48
49	add_action('wp_dashboard_setup', array($this, 'add_dashboard_widgets'));
50
51	// Network admin dashboard (multisite)
52	if (is_multisite()) {
53	add_action('wp_network_dashboard_setup', array($this, 'add_dashboard_widgets'));
54	}
55	}
56
57	/**
58	* Hook the handler class that will manage 404 requests
59	*
60	* @return void
61	*/
62	public function hook_404_handler() {
63	add_action('template_redirect', array($this, 'maybe_handle_404_request'));
64	}
65
66	/**
67	* Detect if request is a 404 not found error, and handle it using WP_Optimize_404_Detector class
68	*
69	* @return void
70	*/
71	public function maybe_handle_404_request() {
72	if (is_404()) {
73	$this->obj_404_detector->handle_request();
74	}
75	}
76
77	/**
78	* Add widget to admin dashboard
79	*
80	* @return void
81	*/
82	public function add_dashboard_widgets() {
83	wp_add_dashboard_widget('wp_optimize_performance', __('Performance', 'wp-optimize'), array($this, 'print_dashboard_widget'));
84	}
85
86	/**
87	* Generate the admin widget content
88	*
89	* @return string
90	*/
91	private function dashboard_widget() {
92	$html = $this->get_404_requests_summary();
93
94	if (empty($html)) {
95	$html = esc_html__('No performance issues found', 'wp-optimize');
96	}
97
98	return $html;
99	}
100
101	/**
102	* Build an HTML summary to be shown in a dashboard widget
103	*
104	* @return string
105	*/
106	private function get_404_requests_summary() {
107	$detector = $this->obj_404_detector;
108
109	$counts = $detector->get_suspicious_requests_count();
110	if ($counts['total_requests'] > $detector->get_dashboard_alert_request_count_threshold()) {
111	$url_count = $counts['unique_urls'];
112	$total_count = $counts['total_requests'];
113
114	$admin_url = is_multisite() ? network_admin_url('admin.php') : admin_url('admin.php');
115
116	$performance_url = esc_url(add_query_arg(array('page' => 'wpo_performance'), $admin_url));
117
118	$url_label = _n('URL', 'URLs', $url_count, 'wp-optimize');
119
120	return sprintf(
121	// translators: %1$d is count of unique URLs, %2$s is "URL" or "URLs", %3$d is count of 404 requests, %4$s is the performance page URL.
122	__('<b>%1$d</b> %2$s generated <b>%3$d</b> 404 Not Found requests <a href="%4$s">Check</a>', 'wp-optimize'),
123	$url_count,
124	esc_html($url_label),
125	$total_count,
126	$performance_url
127	);
128	}
129
130	return "";
131	}
132
133	/**
134	* Actually print the widget contents
135	*
136	* @return void
137	*/
138	public function print_dashboard_widget() {
139	echo $this->dashboard_widget(); // phpcs:ignore WordPress.Security.EscapeOutput -- Output is already escaped
140	}
141
142	/**
143	* Add a tab on the site health check
144	*
145	* @param array $tabs
146	* @return array
147	*/
148	public function add_health_tab($tabs) {
149	$tabs['wpo_performance'] = 'WP-Optimize ' . esc_html__('Performance', 'wp-optimize');
150
151	return $tabs;
152	}
153
154	/**
155	* Display information in the site health report
156	*
157	* @return void
158	*/
159	public function site_health_tab_content($tab) {
160	if ('wpo_performance' === $tab) {
161	WP_Optimize()->include_template('performance/site-health.php', false, array(
162	'alerts' => $this->dashboard_widget()
163	));
164	}
165	}
166	}
167
168	endif;
169