searchpro / inc / photon / class-berqCriticalCSS.php

class-berqCriticalCSS.php in BerqWP – All-In-One Optimization for Core Web Vitals, Cache, CDN, Images, CSS & JavaScript 1.9.7, at inc/photon/class-berqCriticalCSS.php

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1	<?php
2	if (!defined('ABSPATH')) exit;
3
4	class berqCriticalCSS {
5	function __construct() {
6	add_action('berqwp_get_critical_css', [$this, 'make_request'], 10, 1);
7	add_action('berqwp_flush_page_cache', [$this, 'delete_css_file']);
8	add_action('berqwp_flush_all_cache', [$this, 'delete_all_css_files']);
9	}
10
11	function get_css($page_slug) {
12
13	if ($this->can_make_request($page_slug)) {
14	as_enqueue_async_action('berqwp_get_critical_css', [$page_slug]);
15
16	return false;
17	}
18
19	$css_file = $this->get_file_path($page_slug);
20	return file_get_contents($css_file);
21
22	}
23
24	function make_request($page_slug, $page_url = null) {
25
26	if (!empty($page_url)) {
27	$page_url = $page_url . "?generating_critical_css";
28
29	} else {
30	$page_url = home_url() . $page_slug . "?generating_critical_css";
31
32	}
33
34
35	// $page_url = "https://wordpress-1288044-4671067.cloudwaysapps.com/?generating_critical_css";
36	$url = 'https://api-critical.hamzamairaj.dev/';
37
38	$params = [
39	'url' => rawurlencode($page_url),
40	'w' => '1440',
41	'h' => '100000',
42	];
43
44	$api_url_with_params = add_query_arg($params, $url);
45	$response = wp_remote_get($api_url_with_params, array('timeout' => 100, 'sslverify' => true));
46
47	// Check for errors
48	if (is_wp_error($response) && wp_remote_retrieve_response_code($response) !== 200) {
49	$error_message = $response->get_error_message();
50	return false;
51	} else {
52	// Retrieve the response body
53	$response_body = wp_remote_retrieve_body($response);
54
55	if (isset (json_decode($response_body, true)['status']) && json_decode($response_body, true)['status'] == 'error') {
56	return false;
57	}
58
59
60	if (!empty (trim($response_body)) && !str_contains($response_body, '</title>')) {
61	$this->store_css($page_slug, $response_body);
62	return $response_body;
63	} else {
64	as_enqueue_async_action('berqwp_get_critical_css', [$page_slug]);
65	}
66
67	return false;
68
69	}
70	}
71
72	function delete_css_file($page_slug) {
73	$file_path = $this->get_file_path($page_slug);
74	if (file_exists($file_path)) {
75	unlink($file_path);
76	}
77	}
78
79	function delete_all_css_files() {
80	$css_directory = optifer_cache . '/critical-css/';
81	berqwp_unlink_recursive($css_directory);
82	}
83
84	function store_css($page_slug, $critical_css) {
85	$css_file = $this->get_file_path($page_slug);
86	file_put_contents($css_file, $critical_css);
87
88	$this->update_cache($page_slug);
89	}
90
91	function get_file_path($page_slug) {
92	$css_directory = optifer_cache . '/critical-css/';
93
94	if (!file_exists($css_directory)) {
95	mkdir($css_directory, 0755, true);
96	}
97
98	$css_file = $css_directory . md5($page_slug) . '.css';
99
100	return $css_file;
101	}
102
103	function can_make_request($page_slug) {
104	$file_path = $this->get_file_path($page_slug);
105
106	if (!file_exists($file_path)) {
107	return true;
108	}
109
110	$file_mod_time = filemtime($file_path);
111	$current_time = time();
112	$file_age = $current_time - $file_mod_time;
113	$seven_days_in_seconds = 7 * 24 * 60 * 60;
114
115	// Check if the file is older than 7 days
116	if ($file_age > $seven_days_in_seconds) {
117	return true;
118	}
119
120	return false;
121	}
122
123	function add_css_to_buffer($buffer, $css) {
124	$criticalcss = sprintf('<style data-berqwp id="berqwp-critical-css">%s</style>', $css);
125	$buffer = preg_replace('/<head(\s[^>]*)?>/i', '<head$1>' . $criticalcss, $buffer);
126	return $buffer;
127	}
128
129	function update_cache($page_slug) {
130	if (!function_exists('str_get_html')) {
131	require_once optifer_PATH . '/simplehtmldom/simple_html_dom.php';
132	}
133
134	$cache_directory = optifer_cache . '/html/';
135
136	// Create the cache directory if it doesn't exist
137	if (!file_exists($cache_directory)) {
138	mkdir($cache_directory, 0755, true);
139	}
140
141	$cache_file = $cache_directory . md5($page_slug) . '.html';
142	$css_file = $this->get_file_path($page_slug);
143
144	if (file_exists($cache_file) && file_exists($css_file)) {
145	$buffer = file_get_contents($cache_file);
146
147	// Load the HTML buffer into Simple HTML DOM
148	$html = str_get_html($buffer);
149
150	// Check if there's a <style> tag with id="berqwp-critical-css"
151	$style_tag = $html->find('style#berqwp-critical-css', 0);
152
153	if ($style_tag === null) {
154	$criticalcss = file_get_contents($css_file);
155	$buffer = $this->add_css_to_buffer($buffer, $criticalcss);
156
157	// update cache
158	$berqPageOptimizer = new berqPageOptimizer();
159	$berqBufferOptimize = new berqBufferOptimize();
160
161	$buffer = $berqBufferOptimize->css_optimize($buffer, true, false);
162	$berqPageOptimizer->set_slug($page_slug);
163
164	$beforeBodyClose = apply_filters( 'berqwp_buffer_before_closing_body', '' );
165	$buffer = str_replace('</body>', $beforeBodyClose . '</body>', $buffer);
166
167	$berqPageOptimizer->store_cache($buffer);
168	}
169
170	unset($html);
171	}
172
173
174	}
175
176	}
177
178	// new berqCriticalCSS();