searchpro / inc / class-berqconfigs.php

class-berqconfigs.php in BerqWP – All-In-One Optimization for Core Web Vitals, Cache, CDN, Images, CSS & JavaScript 4.0.27, at inc/class-berqconfigs.php

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1	<?php
2	if (!defined('ABSPATH')) exit;
3
4	class berqConfigs {
5	public $config_file;
6	private $defaults = [
7	'site_id' => '',
8	'secret' => '',
9	'home_url' => '',
10	'optimization_method' => '',
11	'exclude_cookies' => [],
12	'exclude_urls' => [],
13	'cache_lifespan' => MONTH_IN_SECONDS,
14	'page_compression' => false,
15	];
16
17	private static $cached_config = null;
18	private static $cached_blog_id = null;
19	private static $instance = null;
20
21	function __construct() {
22	$base_dir = WP_CONTENT_DIR . '/cache/berqwp/';
23
24	if (function_exists('is_multisite') && is_multisite()) {
25	$blog_id = $this->get_blog_id();
26	// Store per-site config inside the site's cache directory
27	$config_dir = $base_dir . 'site-' . $blog_id;
28	$this->config_file = $config_dir . '/config.json';
29
30	// Reset static cache if blog context changed
31	if (self::$cached_blog_id !== null && self::$cached_blog_id !== $blog_id) {
32	self::$cached_config = null;
33	}
34	self::$cached_blog_id = $blog_id;
35	} else {
36	$this->config_file = $base_dir . 'config.json';
37	}
38
39	$config_dir = dirname($this->config_file);
40
41	// Ensure the cache directory exists
42	if (!is_dir($config_dir)) {
43	@mkdir($config_dir, 0755, true);
44	}
45
46	// If dir still doesn't exist (e.g. permissions failure), use defaults and skip disk I/O
47	if (!is_dir($config_dir)) {
48	self::$cached_config = $this->defaults;
49	return;
50	}
51
52	if (!file_exists($this->config_file)) {
53	// Create config file with current defaults if it doesn't exist
54	$this->save_config($this->defaults);
55	self::$cached_config = $this->defaults;
56	} else if (self::$cached_config === null) {
57	// Only read from disk if not already cached this request
58	$existing_config = $this->get_file_config();
59	$merged_config = $this->merge_with_defaults($existing_config);
60
61	if ($merged_config !== $existing_config) {
62	$this->save_config($merged_config);
63	}
64
65	self::$cached_config = $merged_config;
66	}
67	}
68
69	static function getInstance() {
70	if (self::$instance === null) {
71	self::$instance = new berqConfigs();
72	}
73	return self::$instance;
74	}
75
76	/**
77	* Get the current blog ID, with fallback for early-load (drop-in) context.
78	*/
79	private function get_blog_id() {
80	if (function_exists('get_current_blog_id')) {
81	return get_current_blog_id();
82	}
83	return self::detect_blog_id_from_request();
84	}
85
86	/**
87	* Detect blog_id from the HTTP request before WordPress is fully loaded.
88	* Uses a cached blog-map.json file for lookup.
89	*/
90	public static function detect_blog_id_from_request() {
91	// If WordPress has already set the global, use it
92	global $blog_id;
93	if (!empty($blog_id)) {
94	return (int) $blog_id;
95	}
96
97	$map_file = WP_CONTENT_DIR . '/cache/berqwp/blog-map.json';
98	if (!file_exists($map_file)) {
99	return 1;
100	}
101
102	$map = json_decode(file_get_contents($map_file), true);
103	if (empty($map)) {
104	return 1;
105	}
106
107	$host = isset($_SERVER['HTTP_HOST']) ? strtolower($_SERVER['HTTP_HOST']) : '';
108	$path = isset($_SERVER['REQUEST_URI']) ? strtolower($_SERVER['REQUEST_URI']) : '/';
109
110	// Subdomain match
111	if (!empty($map['subdomains']) && isset($map['subdomains'][$host])) {
112	return (int) $map['subdomains'][$host];
113	}
114
115	// Subdirectory match (longest prefix wins)
116	if (!empty($map['subdirs'])) {
117	$best_match = 1;
118	$best_len = 0;
119	foreach ($map['subdirs'] as $prefix => $id) {
120	if (strpos($path, $prefix) === 0 && strlen($prefix) > $best_len) {
121	$best_match = (int) $id;
122	$best_len = strlen($prefix);
123	}
124	}
125	return $best_match;
126	}
127
128	return 1;
129	}
130
131	private function merge_with_defaults($config) {
132	// Ensure all default keys exist in the config, preserving existing values
133	return array_merge($this->defaults, $config);
134	}
135
136	private function get_file_config() {
137	if (file_exists($this->config_file)) {
138	$contents = file_get_contents($this->config_file);
139
140	if ($contents === false) {
141	return false;
142	}
143
144	return json_decode($contents, true) ?: [];
145	}
146	return [];
147	}
148
149	private function save_config($config) {
150	file_put_contents($this->config_file, json_encode($config, JSON_PRETTY_PRINT));
151	self::$cached_config = null; // invalidate cache on write
152	}
153
154	public function get_configs() {
155	if (self::$cached_config !== null) {
156	return self::$cached_config;
157	}
158
159	$file_config = $this->get_file_config();
160
161	if ($file_config === false) {
162	return false;
163	}
164
165	self::$cached_config = $this->merge_with_defaults($file_config);
166	return self::$cached_config;
167	}
168
169	public function update_configs($new_config) {
170	// Get current config (with defaults)
171	$current_config = $this->get_configs();
172
173	if ($current_config === false) {
174	return false;
175	}
176
177	// Merge new values with existing config
178	$updated_config = array_merge($current_config, $new_config);
179
180	// Save the complete configuration
181	return $this->save_config($updated_config);
182	}
183	}
184