metasync / includes / class-metasync.php

class-metasync.php in Search Atlas SEO – OTTO AI SEO Automation for WordPress 2.6.19, at includes/class-metasync.php

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1	<?php
2	// If this file is called directly, abort.
3	if (!defined('ABSPATH')) {
4	exit;
5	}
6
7
8	/**
9	* The file that defines the core plugin class
10	*
11	* A class definition that includes attributes and functions used across both the
12	* public-facing side of the site and the admin area.
13	*
14	* @link https://searchatlas.com
15	* @since 1.0.0
16	*
17	* @package Metasync
18	* @subpackage Metasync/includes
19	*/
20
21	/**
22	* The core plugin class.
23	*
24	* This is used to define internationalization, admin-specific hooks, and
25	* public-facing site hooks.
26	*
27	* Also maintains the unique identifier of this plugin as well as the current
28	* version of the plugin.
29	*
30	* @since 1.0.0
31	* @package Metasync
32	* @subpackage Metasync/includes
33	* @author Engineering Team <support@searchatlas.com>
34	*/
35	class Metasync
36	{
37
38	/**
39	* The loader that's responsible for maintaining and registering all hooks that power
40	* the plugin.
41	*
42	* @since 1.0.0
43	* @access protected
44	* @var Metasync_Loader $loader Maintains and registers all hooks for the plugin.
45	*/
46	protected $loader;
47
48	/**
49	* The unique identifier of this plugin.
50	*
51	* @since 1.0.0
52	* @access protected
53	* @var string $plugin_name The string used to uniquely identify this plugin.
54	*/
55	protected $plugin_name;
56
57	/**
58	* The current version of the plugin.
59	*
60	* @since 1.0.0
61	* @access protected
62	* @var string $version The current version of the plugin.
63	*/
64	protected $version;
65
66	protected $database;
67
68	protected $db_redirection;
69
70	protected $db_heartbeat_errors;
71
72
73
74	public const option_name = "metasync_options";
75
76	/**
77	* Dedicated option key for heartbeat throttle timestamps.
78	*
79	* Stored separately from the main options blob so writes to last_heart_beat
80	* and last_heartbeat_at do not race with concurrent settings writes during
81	* the 15-second wp_remote_post window in SyncCustomerParams.
82	*/
83	public const heartbeat_throttle_option = "metasync_heartbeat_throttle";
84
85	/**
86	* Search Atlas Domain Constants
87	* Centralized constants for all Search Atlas service endpoints
88	*/
89	public const HOMEPAGE_DOMAIN = "https://searchatlas.com";
90	public const DASHBOARD_DOMAIN = "https://dashboard.searchatlas.com";
91	public const API_DOMAIN = "https://api.searchatlas.com";
92	public const CA_API_DOMAIN = "https://ca.searchatlas.com";
93	public const SUPPORT_EMAIL = "support@searchatlas.com";
94	public const DOCUMENTATION_DOMAIN = "https://help.searchatlas.com";
95
96	/**
97	* Storage prefix marking a Search Atlas API key value as encrypted at rest.
98	*/
99	private const API_KEY_ENC_PREFIX = 'enc_v1:';
100
101	/**
102	* Request-scoped memo for the decrypted Search Atlas API key.
103	*
104	* null = not yet loaded this request
105	* false = load attempted but decryption failed (salts changed / corrupt)
106	* string = decrypted plaintext (may be '')
107	*
108	* Never written to a transient or the DB — exists only for the lifetime
109	* of the current request.
110	*
111	* @var string\|false\|null
112	*/
113	private static $memo_api_key = null;
114
115	/**
116	* Define the core functionality of the plugin.
117	*
118	* Set the plugin name and the plugin version that can be used throughout the plugin.
119	* Load the dependencies, define the locale, and set the hooks for the admin area and
120	* the public-facing side of the site.
121	*
122	* @since 1.0.0
123	*/
124	public function __construct()
125	{
126	if (defined('METASYNC_VERSION')) {
127	$this->version = METASYNC_VERSION;
128	} else {
129	$this->version = '1.0.0';
130	}
131	$this->plugin_name = 'metasync';
132
133	$this->load_dependencies();
134	// $this->set_locale(); // Language support removed - using default only
135	$this->init_api_key_monitor();
136	$this->define_admin_hooks();
137	$this->define_public_hooks();
138	}
139
140	/**
141	* Load the required dependencies for this plugin.
142	*
143	* Include the following files that make up the plugin:
144	*
145	* - Metasync_Loader. Orchestrates the hooks of the plugin.
146	* - Metasync_i18n. Defines internationalization functionality.
147	* - Metasync_Admin. Defines all hooks for the admin area.
148	* - Metasync_Public. Defines all hooks for the public side of the site.
149	*
150	* Create an instance of the loader which will be used to register the hooks
151	* with WordPress.
152	*
153	* @since 1.0.0
154	* @access private
155	*/
156	private function load_dependencies()
157	{
158	// WordPress core — cannot be autoloaded.
159	require_once ABSPATH . 'wp-admin/includes/taxonomy.php';
160
161	// Procedural init file — not a class, must stay explicit.
162	if (file_exists(plugin_dir_path(dirname(__FILE__)) . 'google-index/google-index-init.php')) {
163	require_once plugin_dir_path(dirname(__FILE__)) . 'google-index/google-index-init.php';
164	} else {
165	error_log('MetaSync Google Index: google-index-init.php not found at ' . plugin_dir_path(dirname(__FILE__)) . 'google-index/google-index-init.php');
166	}
167
168	// Admin navigation is referenced statically from frontend-reachable
169	// includes (heartbeat/connect managers). Require it explicitly here so
170	// the static call never fatals when wp_head fires before autoload.
171	if (!class_exists('Metasync_Admin_Navigation')) {
172	require_once plugin_dir_path(dirname(__FILE__)) . 'includes/class-metasync-admin-navigation.php';
173	}
174
175	$this->loader = new Metasync_Loader();
176	$this->db_heartbeat_errors = new Metasync_HeartBeat_Error_Monitor_Database();
177	$this->db_redirection = new Metasync_Redirection_Database();
178	}
179
180	/**
181	* Define the locale for this plugin for internationalization.
182	*
183	* Uses the Metasync_i18n class in order to set the domain and to register the hook
184	* with WordPress.
185	*
186	* @since 1.0.0
187	* @access private
188	*/
189	// Language support removed - using default only
190	/*
191	private function set_locale()
192	{
193	$plugin_i18n = new Metasync_i18n();
194
195	$this->loader->add_action('plugins_loaded', $plugin_i18n, 'load_plugin_textdomain');
196	}
197	*/
198
199	/**
200	* Initialize the API Key Monitor for comprehensive API key change detection
201	*
202	* @since 1.0.0
203	* @access private
204	*/
205	private function init_api_key_monitor()
206	{
207	// Initialize the singleton instance of the API Key Monitor
208	// This will automatically set up hooks to monitor all API key changes
209	Metasync_API_Key_Monitor::get_instance();
210
211	// Log successful initialization
212	#commented out to stop appending this to error.php
213	# error_log('MetaSync: API Key Monitor initialized successfully');
214	}
215
216	/**
217	* Register all of the hooks related to the admin area functionality
218	* of the plugin.
219	*
220	* @since 1.0.0
221	* @access private
222	*/
223	private function define_admin_hooks()
224	{
225
226	$plugin_admin = new Metasync_Admin($this->get_plugin_name(), $this->get_version(), $this->database, $this->db_redirection, $this->db_heartbeat_errors); // , $this->data_error_log_list
227
228	// Initialize HTML Visual Editor
229	$html_visual_editor = new Metasync_HTML_Visual_Editor($this->get_plugin_name(), $this->get_version());
230	$html_visual_editor->init();
231
232	// Initialize OTTO Debug class for developers
233	if (class_exists('Metasync_Otto_Debug')) {
234	$otto_debug = new Metasync_Otto_Debug($this->get_plugin_name(), $this->get_version());
235	}
236
237	// Initialize SEO Sidebar for Gutenberg Block Editor
238	if (class_exists('Metasync_SEO_Sidebar')) {
239	new Metasync_SEO_Sidebar($this->get_version());
240	}
241
242	// Initialize Internal Link Suggestions for Gutenberg Block Editor
243	if (class_exists('Metasync_Link_Suggestions')) {
244	new Metasync_Link_Suggestions();
245	}
246
247	$this->loader->add_action('admin_enqueue_scripts', $plugin_admin, 'enqueue_styles');
248	$this->loader->add_action('admin_enqueue_scripts', $plugin_admin, 'enqueue_scripts');
249
250	# Redirection import AJAX handler
251	$redirection_handler = new Metasync_Redirection($this->db_redirection);
252	$this->loader->add_action('wp_ajax_metasync_import_redirections', $redirection_handler, 'handle_import_ajax');
253	$this->loader->add_action('wp_ajax_metasync_check_redirects_health', $redirection_handler, 'handle_health_check_ajax');
254
255	// HeartBeat API Receive Respond and Settings.
256	$this->loader->add_action('heartbeat_settings', $plugin_admin, 'metasync_heartbeat_settings');
257	$this->loader->add_action('heartbeat_received', $plugin_admin, 'metasync_received_data', 10, 2);
258	$this->loader->add_action('wp_ajax_metasync_send_customer_params', $plugin_admin, 'lgSendCustomerParams');
259
260	// Search Atlas Connect endpoints - authenticates with Search Atlas platform to retrieve SA API key and Otto UUID
261	$this->loader->add_action('wp_ajax_metasync_generate_connect_url', $plugin_admin, 'generate_searchatlas_connect_url');
262	$this->loader->add_action('wp_ajax_metasync_check_connect_status', $plugin_admin, 'check_searchatlas_connect_status');
263	$this->loader->add_action('wp_ajax_metasync_reset_authentication', $plugin_admin, 'reset_searchatlas_authentication');
264
265	// Auto-update filter
266	$this->loader->add_filter('auto_update_plugin', $plugin_admin, 'control_plugin_auto_updates', 10, 2);
267
268	// Search Atlas Connect development/testing endpoints
269	$this->loader->add_action('wp_ajax_metasync_test_enhanced_tokens', $plugin_admin, 'test_enhanced_searchatlas_tokens');
270	$this->loader->add_action('wp_ajax_metasync_test_whitelabel_domain', $plugin_admin, 'test_whitelabel_domain');
271	$this->loader->add_action('wp_ajax_metasync_test_ajax_endpoint', $plugin_admin, 'test_searchatlas_ajax_endpoint');
272	$this->loader->add_action('wp_ajax_metasync_simple_ajax_test', $plugin_admin, 'simple_ajax_test');
273
274
275	$post_meta_setting = new Metasync_Post_Meta_Settings();
276	$this->loader->add_action('admin_init', $post_meta_setting, 'add_post_meta_data', 2);
277	$this->loader->add_action('admin_init', $post_meta_setting, 'show_top_admin_bar', 9);
278
279	// SEO Health CSV export: must run on admin_init (before output).
280	// Cheap $_GET check avoids loading the class on every admin page.
281	if (
282	isset($_GET['page'], $_GET['export'], $_GET['_wpnonce']) &&
283	$_GET['export'] === 'csv' &&
284	strpos($_GET['page'], '-seo-health') !== false
285	) {
286	$this->loader->add_action('admin_init', Metasync_SEO_Health::get_instance(), 'handle_csv_export', 1);
287	}
288	$this->loader->add_action('wp', $post_meta_setting, 'show_top_admin_bar', 9);
289
290	// Initialize XML Sitemap auto-update hooks if enabled
291	// Note: Must not be gated by is_admin() because Gutenberg saves posts
292	// via the REST API where is_admin() returns false, and REST_REQUEST
293	// is not yet defined at plugin load time
294	if (get_option('metasync_sitemap_auto_update', false)) {
295	$sitemap_generator = new Metasync_Sitemap_Generator();
296	$sitemap_generator->setup_auto_update_hooks();
297	}
298	// Initialize Schema Markup functionality
299	$schema_markup = new Metasync_Schema_Markup($this->get_plugin_name(), $this->get_version());
300	$this->loader->add_action('wp_ajax_metasync_get_schema_fields', $schema_markup, 'ajax_get_schema_fields');
301	$this->loader->add_action('wp_ajax_metasync_preview_schema', $schema_markup, 'ajax_preview_schema');
302
303	// Initialize Breadcrumbs functionality
304	if (class_exists('Metasync_Breadcrumbs')) {
305	new Metasync_Breadcrumbs($this->get_plugin_name(), $this->get_version());
306	}
307	if (class_exists('Metasync_Breadcrumbs_Schema')) {
308	new Metasync_Breadcrumbs_Schema($this->get_plugin_name(), $this->get_version());
309	}
310
311	// Initialize Developer Panel (for endpoint switching)
312	if (class_exists('Metasync_Dev_Panel')) {
313	$dev_panel = new Metasync_Dev_Panel($this->get_plugin_name(), $this->get_version());
314	}
315
316	// Initialize Site Health integration
317	if (class_exists('Metasync_Site_Health')) {
318	$site_health = new Metasync_Site_Health();
319	$site_health->register_tests();
320	}
321
322	// Initialize endpoint URL filtering for staging mode
323	$this->init_endpoint_filtering();
324
325	}
326
327	/**
328	* Register all of the hooks related to the public-facing functionality
329	* of the plugin.
330	*
331	* @since 1.0.0
332	* @access private
333	*/
334	private function define_public_hooks()
335	{
336	// Header and Footer code snippets
337	$code_snippets = new Metasync_Code_Snippets();
338
339	$this->loader->add_action('wp_head', $code_snippets, 'get_header_snippet');
340	$this->loader->add_action('wp_footer', $code_snippets, 'get_footer_snippet');
341
342	$plugin_public = new Metasync_Public($this->get_plugin_name(), $this->get_version());
343	$rest_api = $plugin_public->get_rest_api();
344	$seo_output = $plugin_public->get_seo_output();
345	$get_plugin_basename = sprintf('%1$s/%1$s.php', $this->plugin_name);
346
347	// Asset enqueue hooks (Metasync_Public)
348	$this->loader->add_action('wp_enqueue_scripts', $plugin_public, 'enqueue_styles');
349	$this->loader->add_action('wp_enqueue_scripts', $plugin_public, 'enqueue_scripts');
350	$this->loader->add_action('wp_enqueue_scripts', $plugin_public, 'enqueue_page_custom_css', 999);
351
352	// Elementor editor CSS injection
353	if (class_exists('\Elementor\Plugin')) {
354	$this->loader->add_action('elementor/preview/enqueue_styles', $plugin_public, 'enqueue_elementor_editor_css', 999);
355	}
356
357	// Divi builder CSS injection
358	if (function_exists('et_setup_theme')) {
359	$this->loader->add_action('wp_enqueue_scripts', $plugin_public, 'enqueue_divi_builder_css', 999);
360	}
361
362	// Initialize centralized SEO conflict handler (singleton — suppresses
363	// third-party SEO plugin descriptions when MetaSync provides its own).
364	Metasync_SEO_Conflict_Handler::get_instance();
365
366	// Term-level SEO plugin sync: propagate MetaSync term meta (category/tag
367	// archives) into Yoast/Rank Math/AIOSEO term storage on every write.
368	$this->loader->add_action('updated_term_meta', $this, 'on_term_meta_updated', 10, 4);
369	$this->loader->add_action('added_term_meta', $this, 'on_term_meta_updated', 10, 4);
370
371	// Post-level plugin sync: propagate MetaSync post meta into
372	// Yoast/Rank Math/AIOSEO post storage on every write.
373	$this->loader->add_action('updated_post_meta', $this, 'on_post_meta_updated', 10, 4);
374	$this->loader->add_action('added_post_meta', $this, 'on_post_meta_updated', 10, 4);
375
376	// SEO Output hooks (Metasync_Seo_Output)
377	$this->loader->add_action('wp_head', $seo_output, 'hook_metasync_metatags', 1, 1);
378	$this->loader->add_action('template_redirect', $seo_output, 'inject_archive_seo_controls');
379
380	// Hreflang / language alternates output (wp_head @ priority 2).
381	$plugin_hreflang = new Metasync_Hreflang_Output();
382	$this->loader->add_action('wp_head', $plugin_hreflang, 'output_hreflang_tags', 2);
383
384	// Edge Cache: detect Cloudways Varnish and persist for settings UI
385	$this->loader->add_action('init', 'Metasync_Edge_Cache_Purge', 'detect_cloudways');
386
387	// Sitemap exclusions for disabled archive types
388	$this->loader->add_filter('wp_sitemaps_taxonomies', $seo_output, 'filter_sitemap_taxonomies');
389	$this->loader->add_filter('wp_sitemaps_users_entry', $seo_output, 'filter_sitemap_users', 10, 2);
390	$this->loader->add_filter('wp_sitemaps_add_provider', $seo_output, 'filter_sitemap_providers', 10, 2);
391	$this->loader->add_filter('wp_sitemaps_index_entry', $seo_output, 'filter_sitemap_index_entries', 10, 4);
392
393	// AMP cleanup functionality - remove metasync_optimized attribute from head on AMP pages
394	$this->loader->add_action('template_redirect', $seo_output, 'cleanup_amp_head_attribute', 1);
395	$this->loader->add_action('wp_footer', $seo_output, 'end_amp_head_cleanup', 999);
396
397	// Redirection functionality
398	$redirection = new Metasync_Redirection($this->db_redirection);
399	$this->loader->add_action('template_redirect', $redirection, 'handle_template_redirect', 5);
400
401	# Prevent WordPress from redirecting to draft posts via redirect_canonical
402	$this->loader->add_filter('redirect_canonical', $redirection, 'prevent_draft_post_redirects', 10, 2);
403
404	# Prevent WordPress old slug redirects to unpublished posts only
405	$this->loader->add_filter('old_slug_redirect_post_id', $redirection, 'prevent_old_slug_redirect_to_drafts', 10, 1);
406
407	// Auto-redirect on slug change - creates 301 redirect when post/page slug is changed
408	$auto_redirect = new Metasync_Auto_Redirect($this->db_redirection);
409	$auto_redirect->init();
410
411	# Custom HTML Pages functionality
412	# No additional loader hooks needed - class registers its own hooks
413	$custom_pages = new Metasync_Custom_Pages();
414
415	// 404 Error monitoring
416	$this->loader->add_action('template_redirect', $this, 'handle_404_monitoring', 10);
417	$this->loader->add_action('plugin_action_links_' . $get_plugin_basename, $plugin_public, 'metasync_plugin_links');
418
419	// REST API hooks (Metasync_Rest_Api)
420	$this->loader->add_action('rest_api_init', $rest_api, 'metasync_register_rest_routes');
421	// Coexist with third-party JWT auth plugins: clear their prior auth error
422	// for metasync/v1 requests when our own API key validates. The Tmeister
423	// "JWT Authentication for WP-API" plugin surfaces its jwt_auth_invalid_token
424	// 403 via rest_pre_dispatch (priority 10), so we hook the same filter at a
425	// later priority (11) to clear it for our namespace only.
426	$this->loader->add_filter('rest_pre_dispatch', $rest_api, 'allow_metasync_rest_auth', 11, 3);
427	$this->loader->add_action('init', $plugin_public, 'metasync_plugin_init', 5);
428	$this->loader->add_action('wp_ajax_metasync_lglogin', $rest_api, 'linkgraph_login');
429
430	// Robots meta filter (Metasync_Seo_Output)
431	$this->loader->add_filter('wp_robots', $seo_output, 'metasync_wp_robots_meta');
432
433
434
435	$metasyncTemplateClass = new Metasync_Template();
436	$this->loader->add_filter('theme_page_templates', $metasyncTemplateClass, 'metasync_template_landing_page', 10, 3);
437	$this->loader->add_filter('template_include', $metasyncTemplateClass, 'metasync_template_landing_page_load', 99 );
438	$templateCrawler = new MetaSyncHiddenPostManager(); # initialize the crawler class
439
440	$this->loader->add_action('wp_trash_post', $templateCrawler , 'prevent_post_deletion'); # Prevent post deletion when moved to trash
441	$this->loader->add_action('before_delete_post', $templateCrawler , 'prevent_post_deletion'); # Prevent permanent deletion
442	# $this->loader->add_filter('metasync_hidden_post_manager', $templateCrawler , 'init'); # run the crawler
443	# Hidden post manager now runs via cron instead of filter (to avoid interfering with post create/update)
444	$this->loader->add_action('metasync_hidden_post_check', $templateCrawler , 'init'); # run the crawler via cron
445
446	// Open Graph and Social Media Tags
447	$opengraph = new Metasync_OpenGraph($this->get_plugin_name(), $this->get_version());
448	$opengraph->init();
449
450	# Save current theme info to database (safe context - admin/init hooks)
451	$this->loader->add_action('after_switch_theme', $this, 'save_current_theme_info');
452	$this->loader->add_action('admin_init', $this, 'ensure_theme_info_saved');
453
454	// OTTO Frontend Toolbar
455	$otto_toolbar = new Metasync_Otto_Frontend_Toolbar($this->get_plugin_name(), $this->get_version());
456	$this->loader->add_action('wp_enqueue_scripts', $otto_toolbar, 'enqueue_styles');
457	$this->loader->add_action('wp_enqueue_scripts', $otto_toolbar, 'enqueue_scripts');
458	$this->loader->add_action('admin_bar_menu', $otto_toolbar, 'add_admin_bar_menu', 100);
459	$this->loader->add_action('wp_footer', $otto_toolbar, 'render_debug_bar', 999);
460
461	// Initialize Sitemap Generator on frontend (for virtual sitemap serving)
462	$sitemap_generator = new Metasync_Sitemap_Generator();
463
464	// Initialize LLMs.txt Generator (for virtual /llms.txt and /llms-full.txt serving)
465	require_once plugin_dir_path(dirname(__FILE__)) . 'includes/class-metasync-html-to-markdown.php';
466	require_once plugin_dir_path(dirname(__FILE__)) . 'llms-txt/class-metasync-llms-txt-generator.php';
467	$llms_txt_generator = new Metasync_Llms_Txt_Generator();
468
469	// Serve the IndexNow key file virtually at /{key}.txt so it works
470	// on read-only web roots and nginx hosts that 403 direct static .txt access.
471	require_once plugin_dir_path(dirname(__FILE__)) . 'bing-index/class-metasync-bing-instant-index.php';
472	add_action('template_redirect', array('Metasync_Bing_Instant_Index', 'serve_virtual_key_file'), 0);
473
474	// One-time upgrade: regenerate sitemap to remove any Beaver Builder template entries
475	if ( ! get_option( 'metasync_sitemap_bb_exclusion_applied' ) ) {
476	$this->loader->add_action('init', $this, 'maybe_regenerate_sitemap_after_upgrade');
477	}
478	}
479
480	/**
481	* One-time upgrade routine: regenerate the XML sitemap so that Beaver Builder
482	* template post types (fl-builder-template, fl-theme-layout) that were already
483	* present in previously-generated sitemaps are purged.
484	*
485	* Runs once on 'init' and sets a flag so it never runs again.
486	*
487	* @since 1.0.0
488	*/
489	public function maybe_regenerate_sitemap_after_upgrade() {
490	$done_key = 'metasync_sitemap_bb_exclusion_applied';
491	if ( get_option( $done_key ) ) {
492	return;
493	}
494
495	// Only regenerate if the custom sitemap feature is actually in use.
496	if ( get_option( 'metasync_sitemap_auto_update', false ) \|\| file_exists( ABSPATH . 'sitemap_index.xml' ) ) {
497	if ( ! class_exists( 'Metasync_Sitemap_Generator' ) ) {
498	require_once plugin_dir_path( dirname( __FILE__ ) ) . 'sitemap/class-metasync-sitemap-generator.php';
499	}
500	$sitemap = new Metasync_Sitemap_Generator();
501	$sitemap->generate_sitemap();
502	update_option( $done_key, true );
503	}
504	// If sitemap is not in use, don't set the flag — retry on next load
505	// so that enabling sitemaps later will still clean up BB templates.
506	}
507
508	/**
509	* Initialize endpoint URL filtering for staging mode
510	* Intercepts HTTP requests and replaces production URLs with staging URLs
511	*/
512	private function init_endpoint_filtering() {
513	// Only add filter if Endpoint Manager is available and staging mode is active
514	if (!class_exists('Metasync_Endpoint_Manager') \|\| !Metasync_Endpoint_Manager::is_staging_mode()) {
515	return;
516	}
517
518	// Add filter to intercept HTTP requests before they're sent
519	add_filter('pre_http_request', array($this, 'filter_http_request_urls'), 10, 3);
520	}
521
522	/**
523	* Filter HTTP request URLs to replace production endpoints with staging
524	*
525	* @param false\|array\|WP_Error $preempt Whether to preempt an HTTP request's return value.
526	* @param array $args HTTP request arguments.
527	* @param string $url The request URL.
528	* @return false\|array\|WP_Error
529	*/
530	public function filter_http_request_urls($preempt, $args, $url) {
531	// Only process if we're not preempting the request
532	if ($preempt !== false) {
533	return $preempt;
534	}
535
536	// Only process if staging mode is active
537	if (!class_exists('Metasync_Endpoint_Manager') \|\| !Metasync_Endpoint_Manager::is_staging_mode()) {
538	return $preempt;
539	}
540
541	// Define URL replacements (production => staging)
542	$url_replacements = array(
543	'https://dashboard.searchatlas.com' => 'https://dashboard.staging.searchatlas.com',
544	'https://api.searchatlas.com' => 'https://api.staging.searchatlas.com',
545	'https://ca.searchatlas.com' => 'https://ca.staging.searchatlas.com',
546	'https://sa.searchatlas.com' => 'https://sa.staging.searchatlas.com',
547	);
548
549	// Check if URL needs to be replaced
550	$original_url = $url;
551	foreach ($url_replacements as $production => $staging) {
552	if (strpos($url, $production) === 0) {
553	$url = str_replace($production, $staging, $url);
554	error_log("MetaSync Endpoint Filter: Replaced {$production} with {$staging} in URL: {$original_url}");
555	break;
556	}
557	}
558
559	// If URL was changed, modify the args and make the request ourselves
560	if ($url !== $original_url) {
561	// Make the request with the modified URL
562	return wp_remote_request($url, $args);
563	}
564
565	return $preempt;
566	}
567
568	/**
569	* Term meta update hook: mirror MetaSync term meta (`_metasync_*`)
570	* into the active third-party SEO plugins' term storage.
571	*
572	* Registered on both `updated_term_meta` and `added_term_meta` so new
573	* fields are synced the first time they are written as well as on
574	* subsequent updates.
575	*
576	* @param int $meta_id Meta row ID (unused).
577	* @param int $object_id Term ID.
578	* @param string $meta_key Meta key being written.
579	* @param mixed $meta_value Meta value being written.
580	*/
581	public function on_term_meta_updated($meta_id, $object_id, $meta_key, $meta_value) {
582	if (strncmp($meta_key, '_metasync_', 10) !== 0) {
583	return;
584	}
585
586	if (!class_exists('Metasync_Term_Plugin_Sync')) {
587	return;
588	}
589
590	$term = get_term((int) $object_id);
591	if (!$term \|\| is_wp_error($term)) {
592	return;
593	}
594
595	$canonical_map = [
596	'_metasync_metatitle' => 'title',
597	'_metasync_metadesc' => 'desc',
598	'_metasync_robots_index' => 'noindex',
599	'_metasync_canonical_url' => 'canonical',
600	'_metasync_og_title' => 'og_title',
601	'_metasync_og_description' => 'og_desc',
602	'_metasync_og_image' => 'og_image',
603	'_metasync_twitter_title' => 'twitter_title',
604	'_metasync_twitter_description' => 'twitter_desc',
605	];
606
607	if (!isset($canonical_map[$meta_key])) {
608	return;
609	}
610
611	$canonical_key = $canonical_map[$meta_key];
612
613	Metasync_Term_Plugin_Sync::get_instance()->sync_term(
614	(int) $object_id,
615	(string) $term->taxonomy,
616	[$canonical_key => $meta_value]
617	);
618	}
619
620	/**
621	* Post meta update hook: mirror MetaSync post meta (`_metasync_*`)
622	* into the active third-party SEO plugins' post storage.
623	*
624	* Registered on both `updated_post_meta` and `added_post_meta` so new
625	* fields are synced the first time they are written as well as on
626	* subsequent updates.
627	*
628	* @param int $meta_id Meta row ID (unused).
629	* @param int $post_id Post ID.
630	* @param string $meta_key Meta key being written.
631	* @param mixed $meta_value Meta value being written.
632	*/
633	public function on_post_meta_updated($meta_id, $post_id, $meta_key, $meta_value) {
634	if (!class_exists('Metasync_Plugin_Sync')) {
635	return;
636	}
637
638	Metasync_Plugin_Sync::get_instance()->on_meta_updated($meta_id, $post_id, $meta_key, $meta_value);
639	}
640
641	/**
642	* Save current theme information to MetaSync options
643	* This runs in WordPress admin context, not during REST API requests
644	* Safe to use wp_get_theme() here
645	*/
646	public function save_current_theme_info() {
647	$theme = wp_get_theme();
648	$metasync_data = self::get_option();
649
650	if (!isset($metasync_data['general'])) {
651	$metasync_data['general'] = array();
652	}
653
654	$metasync_data['general']['current_theme_name'] = $theme->get('Name');
655	$metasync_data['general']['current_theme_template'] = $theme->get_template();
656	$metasync_data['general']['theme_info_updated'] = time();
657
658	self::set_option($metasync_data);
659	}
660
661	/**
662	* Ensure theme info is saved on admin_init if not already saved
663	* This ensures theme info is available even if theme wasn't switched
664	*/
665	public function ensure_theme_info_saved() {
666	$metasync_data = self::get_option('general');
667
668	# Only run once per day to avoid overhead
669	if (empty($metasync_data['theme_info_updated']) \|\|
670	(time() - $metasync_data['theme_info_updated']) > 86400) {
671	$this->save_current_theme_info();
672	}
673	}
674
675	public static function get_option($key = null, $default = null)
676	{
677	$options = get_option(Metasync::option_name);
678	if (empty($options)) $options = [];
679	if ($key === null) return $options;
680	return $options[$key] ?? ($default !== null ? $default : null);
681	}
682
683	public static function set_option($data)
684	{
685	#return update_option(Metasync::option_name, $data);
686	$result = update_option(Metasync::option_name, $data);
687
688	// NEW: Structured error logging for database errors (only log if it's a real DB error)
689	global $wpdb;
690	if ($result === false && class_exists('Metasync_Error_Logger') && !empty($wpdb->last_error)) {
691	// Check if it's actually a database error (not just same value)
692	$saved_data = get_option(Metasync::option_name);
693	if ($saved_data !== $data) {
694	// Value is different but save failed - this is a real database error
695	Metasync_Error_Logger::log(
696	Metasync_Error_Logger::CATEGORY_DATABASE_ERROR,
697	Metasync_Error_Logger::SEVERITY_ERROR,
698	'Failed to save plugin main options to database',
699	[
700	'option_name' => Metasync::option_name,
701	'wpdb_error' => $wpdb->last_error,
702	'wpdb_last_query' => $wpdb->last_query,
703	'operation' => 'set_option',
704	'has_api_key' => !empty($data['general']['searchatlas_api_key'] ?? null),
705	'has_auth_token' => !empty($data['general']['apikey'] ?? null)
706	]
707	);
708	}
709	}
710
711	return $result;
712	}
713
714	/**
715	* Derive the 32-byte AES key from existing WordPress salts.
716	*
717	* No new secret is stored anywhere — the key material is the concatenation
718	* of three WordPress salts, hashed to a fixed 32 bytes. If the salts change
719	* (e.g. wp-config regenerated) the derived key changes and previously
720	* encrypted values can no longer be decrypted, which is handled gracefully
721	* by the callers (re-authenticate state) rather than fataling.
722	*
723	* @return string 32 raw bytes.
724	*/
725	private static function api_key_crypto_key()
726	{
727	$material = wp_salt('secure_auth') . wp_salt('logged_in') . wp_salt('nonce');
728	return hash('sha256', $material, true);
729	}
730
731	/**
732	* Determine whether a stored value is in the encrypted-at-rest format.
733	*
734	* @param mixed $value
735	* @return bool
736	*/
737	public static function is_encrypted_api_key($value)
738	{
739	return is_string($value) && strncmp($value, self::API_KEY_ENC_PREFIX, strlen(self::API_KEY_ENC_PREFIX)) === 0;
740	}
741
742	/**
743	* Encrypt a plaintext Search Atlas API key for storage at rest.
744	*
745	* Uses AES-256-GCM (authenticated) with a random 12-byte IV. The IV, the
746	* 16-byte GCM tag and the ciphertext are concatenated and base64-encoded
747	* behind an `enc_v1:` prefix. An empty string is stored as-is (no key set).
748	*
749	* When OpenSSL is unavailable or encryption fails the plaintext is stored
750	* unchanged (availability over hard-fail) and the degradation is logged so
751	* it cannot go unnoticed.
752	*
753	* @param string $plaintext
754	* @return string Encrypted blob, or '' when $plaintext is empty.
755	*/
756	public static function encrypt_api_key($plaintext)
757	{
758	$plaintext = (string) $plaintext;
759	if ($plaintext === '') {
760	return '';
761	}
762
763	// Already encrypted — do not double-encrypt.
764	if (self::is_encrypted_api_key($plaintext)) {
765	return $plaintext;
766	}
767
768	if (!function_exists('openssl_encrypt')) {
769	// OpenSSL unavailable — store plaintext rather than lose the key.
770	error_log('MetaSync: OpenSSL is unavailable — the Search Atlas API key was stored WITHOUT encryption at rest.');
771	return $plaintext;
772	}
773
774	$key = self::api_key_crypto_key();
775	$iv = random_bytes(12);
776	$tag = '';
777	$ciphertext = openssl_encrypt($plaintext, 'aes-256-gcm', $key, OPENSSL_RAW_DATA, $iv, $tag, '', 16);
778
779	if ($ciphertext === false) {
780	// Encryption failed — fall back to plaintext storage, but say so.
781	error_log('MetaSync: API key encryption failed — the Search Atlas API key was stored WITHOUT encryption at rest.');
782	return $plaintext;
783	}
784
785	return self::API_KEY_ENC_PREFIX . base64_encode($iv . $tag . $ciphertext);
786	}
787
788	/**
789	* Decrypt a stored Search Atlas API key value.
790	*
791	* Accepts either the encrypted `enc_v1:` format or a legacy plaintext value
792	* (returned unchanged, supporting installs that pre-date encryption). On any
793	* decryption failure (salt change / corruption) returns false so callers can
794	* surface a re-authenticate state instead of using a bad key.
795	*
796	* @param mixed $value
797	* @return string\|false Plaintext, or false when an encrypted value cannot be decrypted.
798	*/
799	public static function decrypt_api_key($value)
800	{
801	if (!is_string($value) \|\| $value === '') {
802	return '';
803	}
804
805	if (!self::is_encrypted_api_key($value)) {
806	// Legacy plaintext key.
807	return $value;
808	}
809
810	if (!function_exists('openssl_decrypt')) {
811	return false;
812	}
813
814	$raw = base64_decode(substr($value, strlen(self::API_KEY_ENC_PREFIX)), true);
815	if ($raw === false \|\| strlen($raw) < 12 + 16 + 1) {
816	return false;
817	}
818
819	$iv = substr($raw, 0, 12);
820	$tag = substr($raw, 12, 16);
821	$ciphertext = substr($raw, 28);
822
823	$key = self::api_key_crypto_key();
824	$plaintext = openssl_decrypt($ciphertext, 'aes-256-gcm', $key, OPENSSL_RAW_DATA, $iv, $tag);
825
826	if ($plaintext === false) {
827	return false;
828	}
829
830	return $plaintext;
831	}
832
833	/**
834	* Get the decrypted Search Atlas API key, memoized for the request.
835	*
836	* Decrypts at most once per request and never persists the decrypted value
837	* anywhere. When a legacy plaintext key is found it is migrated to the
838	* encrypted format in place (one-time migration on load). Returns:
839	* - the plaintext key (string, possibly '')
840	* - false when an encrypted value exists but cannot be decrypted
841	* (salts changed / corrupt) — callers should treat this as a
842	* "please re-authenticate" state.
843	*
844	* @return string\|false
845	*/
846	public static function get_searchatlas_api_key()
847	{
848	if (self::$memo_api_key !== null) {
849	return self::$memo_api_key;
850	}
851
852	$general = self::get_option('general');
853	$stored = is_array($general) ? ($general['searchatlas_api_key'] ?? '') : '';
854
855	// One-time migration: a non-empty legacy plaintext value is encrypted
856	// in place the first time it is read after this feature ships.
857	if ($stored !== '' && is_string($stored) && !self::is_encrypted_api_key($stored)) {
858	$encrypted = self::encrypt_api_key($stored);
859	if (self::is_encrypted_api_key($encrypted)) {
860	$options = self::get_option();
861	if (!is_array($options)) {
862	$options = [];
863	}
864	$options['general']['searchatlas_api_key'] = $encrypted;
865	self::set_option($options);
866	}
867	}
868
869	self::$memo_api_key = self::decrypt_api_key($stored);
870	return self::$memo_api_key;
871	}
872
873	/**
874	* Clear the request-scoped decrypted-key memo.
875	*
876	* Call after any write that changes the stored searchatlas_api_key so a
877	* subsequent read in the same request reflects the new value.
878	*/
879	public static function invalidate_api_key_cache()
880	{
881	self::$memo_api_key = null;
882	}
883
884	/**
885	* Read the heartbeat throttle state from its dedicated option.
886	*
887	* Backfills from the legacy location (`metasync_options['general']`) the
888	* first time the dedicated option is empty, so existing installs keep
889	* their throttle history across the migration.
890	*/
891	public static function get_heartbeat_throttle(): array
892	{
893	$value = get_option(self::heartbeat_throttle_option, []);
894	if (is_array($value) && !empty($value)) {
895	return $value;
896	}
897
898	$general = self::get_option('general');
899	if (is_array($general) && (array_key_exists('last_heart_beat', $general) \|\| array_key_exists('last_heartbeat_at', $general))) {
900	$throttle = [
901	'last_heart_beat' => $general['last_heart_beat'] ?? 0,
902	'last_heartbeat_at' => $general['last_heartbeat_at'] ?? null,
903	];
904	update_option(self::heartbeat_throttle_option, $throttle);
905	return $throttle;
906	}
907
908	return [];
909	}
910
911	/**
912	* Merge fields into the dedicated heartbeat throttle option.
913	*
914	* Writes via update_option directly so the main metasync_options blob is
915	* never read or rewritten — avoiding the read-modify-write race with
916	* concurrent settings saves.
917	*/
918	public static function set_heartbeat_throttle(array $fields): void
919	{
920	$existing = get_option(self::heartbeat_throttle_option, []);
921	if (!is_array($existing)) {
922	$existing = [];
923	}
924	$merged = array_merge($existing, $fields);
925	update_option(self::heartbeat_throttle_option, $merged);
926	}
927
928	/**
929	* Storage prefix marking a secret value as encrypted at rest.
930	*/
931	private const SECRET_ENC_PREFIX = 'enc_v1:';
932
933	/**
934	* Derive the 32-byte AES key from existing WordPress salts.
935	*
936	* No new secret is stored anywhere — the key material is the concatenation
937	* of three WordPress salts, hashed to a fixed 32 bytes. If the salts change
938	* (e.g. wp-config regenerated) the derived key changes and previously
939	* encrypted values can no longer be decrypted, which callers handle
940	* gracefully rather than fataling.
941	*
942	* @return string 32 raw bytes.
943	*/
944	private static function secret_crypto_key()
945	{
946	$material = wp_salt('secure_auth') . wp_salt('logged_in') . wp_salt('nonce');
947	return hash('sha256', $material, true);
948	}
949
950	/**
951	* Determine whether a stored value is in the encrypted-at-rest format.
952	*
953	* @param mixed $value
954	* @return bool
955	*/
956	public static function is_encrypted_secret($value)
957	{
958	return is_string($value) && strncmp($value, self::SECRET_ENC_PREFIX, strlen(self::SECRET_ENC_PREFIX)) === 0;
959	}
960
961	/**
962	* Encrypt a plaintext secret (e.g. the whitelabel settings password) for
963	* storage at rest.
964	*
965	* Uses AES-256-GCM (authenticated) with a random 12-byte IV. The IV, the
966	* 16-byte GCM tag and the ciphertext are concatenated and base64-encoded
967	* behind an `enc_v1:` prefix. An empty string is stored as-is (no secret).
968	*
969	* When OpenSSL is unavailable or encryption fails the plaintext is stored
970	* unchanged (availability over hard-fail) and the degradation is logged so
971	* it cannot go unnoticed.
972	*
973	* @param string $plaintext
974	* @return string Encrypted blob, or '' when $plaintext is empty.
975	*/
976	public static function encrypt_secret($plaintext)
977	{
978	$plaintext = (string) $plaintext;
979	if ($plaintext === '') {
980	return '';
981	}
982
983	// Already encrypted — do not double-encrypt.
984	if (self::is_encrypted_secret($plaintext)) {
985	return $plaintext;
986	}
987
988	if (!function_exists('openssl_encrypt')) {
989	// OpenSSL unavailable — store plaintext rather than lose the secret.
990	error_log('MetaSync: OpenSSL is unavailable — a secret was stored WITHOUT encryption at rest.');
991	return $plaintext;
992	}
993
994	$key = self::secret_crypto_key();
995	$iv = random_bytes(12);
996	$tag = '';
997	$ciphertext = openssl_encrypt($plaintext, 'aes-256-gcm', $key, OPENSSL_RAW_DATA, $iv, $tag, '', 16);
998
999	if ($ciphertext === false) {
1000	// Encryption failed — fall back to plaintext storage, but say so.
1001	error_log('MetaSync: Secret encryption failed — a secret was stored WITHOUT encryption at rest.');
1002	return $plaintext;
1003	}
1004
1005	return self::SECRET_ENC_PREFIX . base64_encode($iv . $tag . $ciphertext);
1006	}
1007
1008	/**
1009	* Decrypt a stored secret value.
1010	*
1011	* Accepts either the encrypted `enc_v1:` format or a legacy plaintext value
1012	* (returned unchanged, supporting installs that pre-date encryption). On any
1013	* decryption failure (salt change / corruption) returns false so callers can
1014	* degrade gracefully instead of using a bad value.
1015	*
1016	* @param mixed $value
1017	* @return string\|false Plaintext, or false when an encrypted value cannot be decrypted.
1018	*/
1019	public static function decrypt_secret($value)
1020	{
1021	if (!is_string($value) \|\| $value === '') {
1022	return '';
1023	}
1024
1025	if (!self::is_encrypted_secret($value)) {
1026	// Legacy plaintext value.
1027	return $value;
1028	}
1029
1030	if (!function_exists('openssl_decrypt')) {
1031	return false;
1032	}
1033
1034	$raw = base64_decode(substr($value, strlen(self::SECRET_ENC_PREFIX)), true);
1035	if ($raw === false \|\| strlen($raw) < 12 + 16 + 1) {
1036	return false;
1037	}
1038
1039	$iv = substr($raw, 0, 12);
1040	$tag = substr($raw, 12, 16);
1041	$ciphertext = substr($raw, 28);
1042
1043	$key = self::secret_crypto_key();
1044	$plaintext = openssl_decrypt($ciphertext, 'aes-256-gcm', $key, OPENSSL_RAW_DATA, $iv, $tag);
1045
1046	if ($plaintext === false) {
1047	return false;
1048	}
1049
1050	return $plaintext;
1051	}
1052
1053	/**
1054	* Get the decrypted whitelabel settings password.
1055	*
1056	* Reads the stored (encrypted) value and returns the plaintext for
1057	* verification or authorized display. A legacy plaintext value found in
1058	* storage is migrated to the encrypted format in place (one-time migration
1059	* on read). Returns '' when no password is set or when an encrypted value
1060	* can no longer be decrypted (salts changed / corrupt) — in that case the
1061	* stored value still counts as "password set" for protection checks, but
1062	* the user password cannot authenticate until it is reset.
1063	*
1064	* @return string
1065	*/
1066	public static function get_whitelabel_password()
1067	{
1068	$whitelabel = self::get_whitelabel_settings();
1069	$stored = $whitelabel['settings_password'] ?? '';
1070
1071	if (!is_string($stored) \|\| $stored === '') {
1072	return '';
1073	}
1074
1075	// One-time migration: encrypt a legacy plaintext value in place.
1076	// This is a whole-blob read-modify-write of metasync_options during a
1077	// read request; a concurrent settings save could theoretically clobber
1078	// it, but it fires at most once per legacy install so the window is
1079	// accepted rather than adding a dedicated option.
1080	if (!self::is_encrypted_secret($stored)) {
1081	$encrypted = self::encrypt_secret($stored);
1082	if (self::is_encrypted_secret($encrypted)) {
1083	$options = self::get_option();
1084	if (!is_array($options)) {
1085	$options = [];
1086	}
1087	$options['whitelabel']['settings_password'] = $encrypted;
1088	self::set_option($options);
1089	}
1090	return $stored;
1091	}
1092
1093	$plaintext = self::decrypt_secret($stored);
1094	return $plaintext === false ? '' : $plaintext;
1095	}
1096
1097	/**
1098	* Get whitelabel settings
1099	* Helper method to retrieve whitelabel configuration
1100	*/
1101	public static function get_whitelabel_settings()
1102	{
1103	$whitelabel = self::get_option('whitelabel');
1104	return is_array($whitelabel) ? $whitelabel : array(
1105	'is_whitelabel' => false,
1106	'domain' => '',
1107	'logo' => '',
1108	'logo_light' => '',
1109	'logo_dark' => '',
1110	'company_name' => '',
1111	'color_palette' => array(),
1112	'updated_at' => 0
1113	);
1114	}
1115
1116	/**
1117	* Check if whitelabel mode is enabled
1118	*/
1119	public static function is_whitelabel_enabled()
1120	{
1121	$whitelabel = self::get_whitelabel_settings();
1122	return isset($whitelabel['is_whitelabel']) && $whitelabel['is_whitelabel'] === true;
1123	}
1124
1125	/**
1126	* Get effective dashboard domain for the plugin
1127	* Returns whitelabel domain if set (regardless of is_whitelabel flag), otherwise respects staging/production mode
1128	*/
1129	public static function get_dashboard_domain()
1130	{
1131	$whitelabel = self::get_whitelabel_settings();
1132
1133	// Priority 1: Use whitelabel domain if it's not empty (regardless of is_whitelabel flag)
1134	if (!empty($whitelabel['domain'])) {
1135	return $whitelabel['domain'];
1136	}
1137
1138	// Priority 2: Use endpoint manager to respect staging/production mode
1139	if (class_exists('Metasync_Endpoint_Manager')) {
1140	return Metasync_Endpoint_Manager::get_endpoint('DASHBOARD_DOMAIN');
1141	}
1142
1143	// Priority 3: Fallback to production default domain
1144	return self::DASHBOARD_DOMAIN;
1145	}
1146
1147	/**
1148	* Get whitelabel logo URL
1149	* Returns the whitelabel logo URL if logo is set
1150	*/
1151	public static function get_whitelabel_logo()
1152	{
1153	$whitelabel = self::get_whitelabel_settings();
1154
1155	// Return logo if it's set and is a valid URL
1156	// Users should be able to set a custom logo without requiring a custom domain
1157	if (!empty($whitelabel['logo'])) {
1158	return $whitelabel['logo'];
1159	}
1160
1161	return null;
1162	}
1163
1164	/**
1165	* Get whitelabel logo URL for light theme
1166	* Falls back to legacy 'logo' field if logo_light is not set
1167	*/
1168	public static function get_whitelabel_logo_light()
1169	{
1170	$whitelabel = self::get_whitelabel_settings();
1171
1172	if (!empty($whitelabel['logo_light'])) {
1173	return $whitelabel['logo_light'];
1174	}
1175
1176	if (!empty($whitelabel['logo'])) {
1177	return $whitelabel['logo'];
1178	}
1179
1180	return null;
1181	}
1182
1183	/**
1184	* Get whitelabel logo URL for dark theme
1185	* Falls back to legacy 'logo' field if logo_dark is not set
1186	*/
1187	public static function get_whitelabel_logo_dark()
1188	{
1189	$whitelabel = self::get_whitelabel_settings();
1190
1191	if (!empty($whitelabel['logo_dark'])) {
1192	return $whitelabel['logo_dark'];
1193	}
1194
1195	if (!empty($whitelabel['logo'])) {
1196	return $whitelabel['logo'];
1197	}
1198
1199	return null;
1200	}
1201
1202	/**
1203	* Get whitelabel company name
1204	* Returns the whitelabel company name if whitelabel is active and company name is set
1205	*/
1206	public static function get_whitelabel_company_name()
1207	{
1208	$whitelabel = self::get_whitelabel_settings();
1209
1210	// Return company name only if whitelabel is active and company name is set
1211	if (isset($whitelabel['is_whitelabel']) && $whitelabel['is_whitelabel'] === true && !empty($whitelabel['company_name'])) {
1212	return $whitelabel['company_name'];
1213	}
1214
1215	return null;
1216	}
1217
1218	/**
1219	* Get whitelabel OTTO name
1220	* Returns the custom OTTO name if set, otherwise returns 'OTTO'
1221	*/
1222	public static function get_whitelabel_otto_name()
1223	{
1224	$general_settings = self::get_option('general');
1225
1226	// Return custom OTTO name if set, otherwise fallback to 'OTTO'
1227	if (!empty($general_settings['whitelabel_otto_name'])) {
1228	return $general_settings['whitelabel_otto_name'];
1229	}
1230
1231	return 'OTTO';
1232	}
1233
1234	/**
1235	* Check if the current user has access to the plugin based on role settings
1236	*
1237	* @return bool True if user has access, false otherwise
1238	*/
1239	public static function current_user_has_plugin_access()
1240	{
1241	$user = wp_get_current_user();
1242	if (!$user \|\| !$user->exists()) {
1243	return false;
1244	}
1245
1246	// Administrators always have access
1247	if (in_array('administrator', (array) $user->roles)) {
1248	return true;
1249	}
1250
1251	// Get the plugin access roles setting
1252	$general_options = self::get_option('general');
1253
1254	// If setting not configured, default to admin-only access
1255	if (!isset($general_options['plugin_access_roles'])) {
1256	return false;
1257	}
1258
1259	$allowed_roles = $general_options['plugin_access_roles'];
1260
1261	// If it's a string (single role), convert to array
1262	if (!is_array($allowed_roles)) {
1263	$allowed_roles = array($allowed_roles);
1264	}
1265
1266	// If "all" is selected, allow access
1267	if (in_array('all', $allowed_roles)) {
1268	return true;
1269	}
1270
1271	// If array is empty, deny access (only admins allowed)
1272	if (empty($allowed_roles)) {
1273	return false;
1274	}
1275
1276	// Check if user has any of the allowed roles
1277	$user_roles = (array) $user->roles;
1278	return !empty(array_intersect($user_roles, $allowed_roles));
1279	}
1280
1281	/**
1282	* Get active JWT token for Search Atlas API authentication
1283	* Convenience method accessible from anywhere in the plugin
1284	*
1285	* @param bool $force_refresh Force generation of new token even if cached one exists
1286	* @return string\|false JWT token on success, false on failure
1287	*/
1288	public static function get_jwt_token($force_refresh = false)
1289	{
1290	// Delegate to admin class method
1291	return Metasync_Admin::get_active_jwt_token($force_refresh);
1292	}
1293
1294	/**
1295	* Get effective plugin name
1296	* Returns plugin name respecting white label settings
1297	* Priority: 1) white_label_plugin_name 2) company branding + base_name 3) base_name
1298	*/
1299	public static function get_effective_plugin_name($base_name = 'Search Atlas')
1300	{
1301	$general_settings = self::get_option('general');
1302
1303	// Priority 1: Use white_label_plugin_name if set and not empty
1304	if (!empty($general_settings['white_label_plugin_name'])) {
1305	return $general_settings['white_label_plugin_name'];
1306	}
1307
1308	$whitelabel = self::get_whitelabel_settings();
1309
1310	// Priority 2: If whitelabel is enabled and company name is provided, enhance the plugin name
1311	if (isset($whitelabel['is_whitelabel']) && $whitelabel['is_whitelabel'] === true && !empty($whitelabel['company_name'])) {
1312	return $whitelabel['company_name'] . ' ' . $base_name;
1313	}
1314
1315	// Priority 3: Return base_name as fallback
1316	return $base_name;
1317	}
1318
1319	/**
1320	* Render a standalone info-icon tooltip (the same visual/JS pattern used by
1321	* get_field_tooltips() + render_accordion_sections() in Metasync_Settings_Fields).
1322	* Use this on any admin page whose fields are NOT rendered through that
1323	* accordion field-loop (custom render_callback pages, standalone view files) —
1324	* the trigger/hover/positioning JS in admin/js/metasync-admin.js binds to
1325	* `.metasync-tooltip-trigger` globally, so no extra wiring is needed as long
1326	* as this markup is present on a page where metasync-admin.js is enqueued
1327	* (i.e. any admin page under this plugin's menu).
1328	*
1329	* @param string $tooltip_id Unique id for this tooltip (unique per page).
1330	* @param string $text Plain-English help text (escaped internally).
1331	*/
1332	public static function render_tooltip_icon($tooltip_id, $text)
1333	{
1334	echo self::get_tooltip_icon_html($tooltip_id, $text);
1335	}
1336
1337	/**
1338	* Same tooltip markup as render_tooltip_icon(), but RETURNS the HTML string
1339	* instead of echoing it. Use this when the tooltip needs to be concatenated
1340	* into another string — e.g. appended to the $title argument of
1341	* add_settings_field(), which WordPress core echoes raw next to the label.
1342	*
1343	* The whole trigger+popup pair is wrapped in its own small
1344	* `position: relative` anchor span. The popup CSS (.metasync-tooltip) is
1345	* `position: absolute; left: 100%` and positions itself relative to the
1346	* nearest positioned ancestor — on the main settings accordion that's the
1347	* `.metasync-field-label-wrapper` div, but standalone pages (custom
1348	* render_callback templates, add_settings_field titles on plain
1349	* do_settings_sections() pages, etc.) usually have no such ancestor, so
1350	* the popup would escape to whatever distant positioned element exists
1351	* on the page (rendering in the wrong corner of the screen). Wrapping
1352	* here makes every tooltip self-contained regardless of where it's placed.
1353	*
1354	* @param string $tooltip_id Unique id for this tooltip (unique per page).
1355	* @param string $text Plain-English help text (escaped internally).
1356	* @return string HTML markup for the info-icon trigger + tooltip content.
1357	*/
1358	public static function get_tooltip_icon_html($tooltip_id, $text)
1359	{
1360	$html = '<span class="metasync-tooltip-anchor" style="position:relative;display:inline-block;vertical-align:middle;margin-left:8px;">';
1361	$html .= '<button type="button" class="metasync-tooltip-trigger" data-tooltip-id="' . esc_attr($tooltip_id) . '" aria-label="More information">';
1362	$html .= '<svg class="metasync-info-icon" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">';
1363	$html .= '<circle cx="12" cy="12" r="10"></circle>';
1364	$html .= '<path d="M9.09 9a3 3 0 0 1 5.83 1c0 2-3 3-3 3"></path>';
1365	$html .= '<line x1="12" y1="17" x2="12.01" y2="17"></line>';
1366	$html .= '</svg>';
1367	$html .= '</button>';
1368
1369	$html .= '<div class="metasync-tooltip" id="tooltip-' . esc_attr($tooltip_id) . '" role="tooltip">';
1370	$html .= '<div class="metasync-tooltip-arrow"></div>';
1371	$html .= '<div class="metasync-tooltip-content">' . esc_html($text) . '</div>';
1372	$html .= '</div>';
1373	$html .= '</span>';
1374
1375	return $html;
1376	}
1377
1378	/**
1379	* Centralized API Key Event Logging
1380	* Provides structured logging for all API key related events with consistent formatting
1381	*
1382	* @since 1.0.0
1383	* @param string $event_type Type of event (change, refresh, reset, etc.)
1384	* @param string $api_key_type Type of API key (plugin_auth_token, searchatlas_api_key)
1385	* @param array $details Additional details about the event
1386	* @param string $level Log level (info, warning, error)
1387	*/
1388	public static function log_api_key_event($event_type, $api_key_type, $details = array(), $level = 'info')
1389	{
1390	try {
1391	// Build structured log entry
1392	$log_data = array(
1393	'timestamp' => current_time('mysql'),
1394	'event_type' => $event_type,
1395	'api_key_type' => $api_key_type,
1396	'level' => $level
1397	);
1398
1399	// Add details if provided
1400	if (!empty($details)) {
1401	$log_data['details'] = $details;
1402	}
1403
1404	// Format log message with consistent structure
1405	$log_prefix = strtoupper($level) . ' - MetaSync API Key Event';
1406	$log_message = sprintf('[%s] %s: %s (%s)',
1407	$log_data['timestamp'],
1408	$log_prefix,
1409	$event_type,
1410	$api_key_type
1411	);
1412
1413	// Add details to log message if present
1414	if (!empty($details)) {
1415	$formatted_details = array();
1416	foreach ($details as $key => $value) {
1417	$formatted_details[] = $key . ': ' . (is_string($value) ? $value : json_encode($value));
1418	}
1419	$log_message .= ' - ' . implode(', ', $formatted_details);
1420	}
1421
1422
1423	// Optionally store in database for admin dashboard (future enhancement)
1424	// This could be extended to store in a dedicated log table
1425
1426	} catch (Exception $e) {
1427	// Fallback logging if structured logging fails
1428	error_log('MetaSync API Key Event Logging Error: ' . $e->getMessage());
1429	}
1430	}
1431
1432	/**
1433	* Handle 404 error monitoring
1434	*/
1435	public function handle_404_monitoring()
1436	{
1437	// Only process on frontend
1438	if (is_admin()) {
1439	return;
1440	}
1441
1442	// Check if this is a 404 error
1443	if (!is_404()) {
1444	return;
1445	}
1446
1447	// PROTECTION 0: Skip WordPress system paths — these are not "broken links"
1448	$request_uri = $_SERVER['REQUEST_URI'] ?? '';
1449	$skip_prefixes = [
1450	'/wp-json/',
1451	'/wp-admin/',
1452	'/feed/',
1453	'/xmlrpc.php',
1454	'/wp-login.php',
1455	'/wp-cron.php',
1456	];
1457	foreach ($skip_prefixes as $prefix) {
1458	if (stripos($request_uri, $prefix) === 0) {
1459	return;
1460	}
1461	}
1462
1463	// PROTECTION 1: Exclude static assets to reduce noise
1464	$static_extensions = ['.css', '.js', '.jpg', '.jpeg', '.png', '.gif', '.ico', '.svg', '.woff', '.woff2', '.ttf', '.eot', '.map','.webp'];
1465	foreach ($static_extensions as $ext) {
1466	if (stripos($request_uri, $ext) !== false) {
1467	return; // Skip logging static asset 404s
1468	}
1469	}
1470
1471	// PROTECTION 2: Bot detection - Block known bot patterns
1472	$user_agent = $_SERVER['HTTP_USER_AGENT'] ?? '';
1473	$bot_patterns = ['bot', 'crawler', 'spider', 'scraper', 'curl', 'wget', 'python', 'java'];
1474	foreach ($bot_patterns as $pattern) {
1475	if (stripos($user_agent, $pattern) !== false) {
1476	// Rate limit bot 404s more aggressively
1477	$bot_rate_key = 'metasync_404_bot_rate';
1478	$bot_hits = get_transient($bot_rate_key);
1479	if ($bot_hits !== false && $bot_hits >= 10) {
1480	// Bot has hit 10+ 404s in last minute - stop logging
1481	return;
1482	}
1483	set_transient($bot_rate_key, $bot_hits === false ? 1 : $bot_hits + 1, 60);
1484	break;
1485	}
1486	}
1487
1488	// PROTECTION 3: Global rate limiting - Prevent 404 logging storms
1489	$global_rate_key = 'metasync_404_global_rate';
1490	$global_hits = get_transient($global_rate_key);
1491	if ($global_hits !== false && $global_hits >= 50) {
1492	// More than 50 404s per minute - stop logging to protect database
1493	if ($global_hits === 50) {
1494	error_log('MetaSync 404 Monitor: Rate limit exceeded - 50+ 404s per minute. Pausing logging.');
1495	}
1496	set_transient($global_rate_key, $global_hits + 1, 60);
1497	return;
1498	}
1499	set_transient($global_rate_key, $global_hits === false ? 1 : $global_hits + 1, 60);
1500
1501	// Get current URL
1502	$current_url = $this->get_current_url();
1503
1504	// PROTECTION 4: Per-URL caching - Prevent same URL from being logged repeatedly
1505	$url_cache_key = 'metasync_404_cached_' . md5($current_url);
1506	if (get_transient($url_cache_key)) {
1507	// This URL was already logged in last 5 minutes - skip DB write
1508	return;
1509	}
1510
1511	// PROTECTION 5: URL validation - Skip obviously malicious URLs
1512	if (strlen($current_url) > 500 \|\| preg_match('/[<>{}\\\\\|]/', $current_url)) {
1513	return; // Skip potentially malicious or malformed URLs
1514	}
1515
1516	// Initialize 404 monitor database
1517	require_once plugin_dir_path(dirname(__FILE__)) . '404-monitor/class-metasync-404-monitor-database.php';
1518	$db_404 = new Metasync_Error_Monitor_Database();
1519
1520	// Get user agent (sanitized)
1521	$user_agent = isset($_SERVER['HTTP_USER_AGENT']) ? sanitize_text_field($_SERVER['HTTP_USER_AGENT']) : '';
1522
1523	// Log the 404 error
1524	$result = $db_404->update([
1525	'uri' => $current_url,
1526	'user_agent' => $user_agent,
1527	'date_time' => current_time('mysql'),
1528	'hits_count' => 1
1529	]);
1530
1531	// Cache this URL for 5 minutes to prevent repeated DB writes
1532	set_transient($url_cache_key, true, 300);
1533	}
1534
1535	/**
1536	* Get current URL
1537	*/
1538	private function get_current_url()
1539	{
1540	$protocol = is_ssl() ? 'https://' : 'http://';
1541
1542	// Safely get HTTP_HOST with fallback
1543	$host = isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : '';
1544	if (empty($host) && isset($_SERVER['SERVER_NAME'])) {
1545	$host = $_SERVER['SERVER_NAME'];
1546	}
1547	if (empty($host)) {
1548	// Fallback to WordPress site URL if available
1549	$host = parse_url(home_url(), PHP_URL_HOST);
1550	}
1551
1552	// Safely get REQUEST_URI with fallback
1553	$uri = isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : '/';
1554
1555	// Decode URL-encoded characters
1556	$uri = urldecode($uri);
1557
1558	// Ensure URI starts with /
1559	if (!str_starts_with($uri, '/')) {
1560	$uri = '/' . $uri;
1561	}
1562
1563	return $protocol . $host . $uri;
1564	}
1565
1566	/**
1567	* Run the loader to execute all of the hooks with WordPress.
1568	*
1569	* @since 1.0.0
1570	*/
1571	public function run()
1572	{
1573	$this->loader->run();
1574	}
1575
1576	/**
1577	* The name of the plugin used to uniquely identify it within the context of
1578	* WordPress and to define internationalization functionality.
1579	*
1580	* @since 1.0.0
1581	* @return string The name of the plugin.
1582	*/
1583	public function get_plugin_name()
1584	{
1585	return $this->plugin_name;
1586	}
1587
1588	/**
1589	* The reference to the class that orchestrates the hooks with the plugin.
1590	*
1591	* @since 1.0.0
1592	* @return Metasync_Loader Orchestrates the hooks of the plugin.
1593	*/
1594	public function get_loader()
1595	{
1596	return $this->loader;
1597	}
1598
1599	/**
1600	* Retrieve the version number of the plugin.
1601	*
1602	* @since 1.0.0
1603	* @return string The version number of the plugin.
1604	*/
1605	public function get_version()
1606	{
1607	return $this->version;
1608	}
1609	}
1610