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Search Atlas SEO – OTTO AI SEO Automation for WordPress / 2.6.23
Search Atlas SEO – OTTO AI SEO Automation for WordPress v2.6.23
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metasync / includes / class-metasync.php

class-metasync.php in Search Atlas SEO – OTTO AI SEO Automation for WordPress 2.6.23, 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 // Hooked on init at priority 0, before any theme or plugin callback
176 // runs, so it cannot wait for a lazy autoload. See define_public_hooks.
177 if (!class_exists('Metasync_BookingPress_Compat')) {
178 require_once plugin_dir_path(dirname(__FILE__)) . 'includes/class-metasync-bookingpress-compat.php';
179 }
180
181 $this->loader = new Metasync_Loader();
182 $this->db_heartbeat_errors = new Metasync_HeartBeat_Error_Monitor_Database();
183 $this->db_redirection = new Metasync_Redirection_Database();
184 }
185
186 /**
187 * Define the locale for this plugin for internationalization.
188 *
189 * Uses the Metasync_i18n class in order to set the domain and to register the hook
190 * with WordPress.
191 *
192 * @since 1.0.0
193 * @access private
194 */
195 // Language support removed - using default only
196 /*
197 private function set_locale()
198 {
199 $plugin_i18n = new Metasync_i18n();
200
201 $this->loader->add_action('plugins_loaded', $plugin_i18n, 'load_plugin_textdomain');
202 }
203 */
204
205 /**
206 * Initialize the API Key Monitor for comprehensive API key change detection
207 *
208 * @since 1.0.0
209 * @access private
210 */
211 private function init_api_key_monitor()
212 {
213 // Initialize the singleton instance of the API Key Monitor
214 // This will automatically set up hooks to monitor all API key changes
215 Metasync_API_Key_Monitor::get_instance();
216
217 // Log successful initialization
218 #commented out to stop appending this to error.php
219 # error_log('MetaSync: API Key Monitor initialized successfully');
220 }
221
222 /**
223 * Register all of the hooks related to the admin area functionality
224 * of the plugin.
225 *
226 * @since 1.0.0
227 * @access private
228 */
229 private function define_admin_hooks()
230 {
231
232 $plugin_admin = new Metasync_Admin($this->get_plugin_name(), $this->get_version(), $this->database, $this->db_redirection, $this->db_heartbeat_errors); // , $this->data_error_log_list
233
234 // Initialize HTML Visual Editor
235 $html_visual_editor = new Metasync_HTML_Visual_Editor($this->get_plugin_name(), $this->get_version());
236 $html_visual_editor->init();
237
238 // Initialize OTTO Debug class for developers
239 if (class_exists('Metasync_Otto_Debug')) {
240 $otto_debug = new Metasync_Otto_Debug($this->get_plugin_name(), $this->get_version());
241 }
242
243 // Initialize SEO Sidebar for Gutenberg Block Editor
244 if (class_exists('Metasync_SEO_Sidebar')) {
245 new Metasync_SEO_Sidebar($this->get_version());
246 }
247
248 // Initialize Internal Link Suggestions for Gutenberg Block Editor
249 if (class_exists('Metasync_Link_Suggestions')) {
250 new Metasync_Link_Suggestions();
251 }
252
253 $this->loader->add_action('admin_enqueue_scripts', $plugin_admin, 'enqueue_styles');
254 $this->loader->add_action('admin_enqueue_scripts', $plugin_admin, 'enqueue_scripts');
255
256 # Redirection import AJAX handler
257 $redirection_handler = new Metasync_Redirection($this->db_redirection);
258 $this->loader->add_action('wp_ajax_metasync_import_redirections', $redirection_handler, 'handle_import_ajax');
259 $this->loader->add_action('wp_ajax_metasync_check_redirects_health', $redirection_handler, 'handle_health_check_ajax');
260
261 // HeartBeat API Receive Respond and Settings.
262 $this->loader->add_action('heartbeat_settings', $plugin_admin, 'metasync_heartbeat_settings');
263 $this->loader->add_action('heartbeat_received', $plugin_admin, 'metasync_received_data', 10, 2);
264 $this->loader->add_action('wp_ajax_metasync_send_customer_params', $plugin_admin, 'lgSendCustomerParams');
265
266 // Search Atlas Connect endpoints - authenticates with Search Atlas platform to retrieve SA API key and Otto UUID
267 $this->loader->add_action('wp_ajax_metasync_generate_connect_url', $plugin_admin, 'generate_searchatlas_connect_url');
268 $this->loader->add_action('wp_ajax_metasync_check_connect_status', $plugin_admin, 'check_searchatlas_connect_status');
269 $this->loader->add_action('wp_ajax_metasync_reset_authentication', $plugin_admin, 'reset_searchatlas_authentication');
270
271 // Auto-update filter
272 $this->loader->add_filter('auto_update_plugin', $plugin_admin, 'control_plugin_auto_updates', 10, 2);
273
274 // Search Atlas Connect development/testing endpoints
275 $this->loader->add_action('wp_ajax_metasync_test_enhanced_tokens', $plugin_admin, 'test_enhanced_searchatlas_tokens');
276 $this->loader->add_action('wp_ajax_metasync_test_whitelabel_domain', $plugin_admin, 'test_whitelabel_domain');
277 $this->loader->add_action('wp_ajax_metasync_test_ajax_endpoint', $plugin_admin, 'test_searchatlas_ajax_endpoint');
278 $this->loader->add_action('wp_ajax_metasync_simple_ajax_test', $plugin_admin, 'simple_ajax_test');
279
280
281 $post_meta_setting = new Metasync_Post_Meta_Settings();
282 $this->loader->add_action('admin_init', $post_meta_setting, 'add_post_meta_data', 2);
283 $this->loader->add_action('admin_init', $post_meta_setting, 'show_top_admin_bar', 9);
284
285 // Unified "SEO Suite" meta box — consolidates the separate Classic-editor
286 // meta boxes above into one tabbed box (presentation-only; save handlers
287 // unchanged). Classic editor only; the block editor keeps its SEO sidebar.
288 // Self-registers its hooks in the constructor. Opt out via the
289 // `metasync_enable_seo_suite` filter.
290 require_once plugin_dir_path(dirname(__FILE__)) . 'includes/class-metasync-seo-suite.php';
291 new Metasync_Seo_Suite();
292
293 // SEO Health CSV export: must run on admin_init (before output).
294 // Cheap $_GET check avoids loading the class on every admin page.
295 if (
296 isset($_GET['page'], $_GET['export'], $_GET['_wpnonce']) &&
297 $_GET['export'] === 'csv' &&
298 strpos($_GET['page'], '-seo-health') !== false
299 ) {
300 $this->loader->add_action('admin_init', Metasync_SEO_Health::get_instance(), 'handle_csv_export', 1);
301 }
302 $this->loader->add_action('wp', $post_meta_setting, 'show_top_admin_bar', 9);
303
304 // SEO meta columns on the posts/pages list tables (WP-624).
305 // Registered for both the `posts` and `pages` variants of each hook so the
306 // columns reach every supported post type; the callbacks bail on unsupported
307 // ones. Hidden by default — users opt in from Screen Options.
308 $seo_columns = Metasync_SEO_Columns::get_instance();
309 $this->loader->add_filter('manage_posts_columns', $seo_columns, 'add_columns', 10, 2);
310 $this->loader->add_filter('manage_pages_columns', $seo_columns, 'add_columns', 10, 1);
311 $this->loader->add_action('manage_posts_custom_column', $seo_columns, 'render_column', 10, 2);
312 $this->loader->add_action('manage_pages_custom_column', $seo_columns, 'render_column', 10, 2);
313 $this->loader->add_filter('default_hidden_columns', $seo_columns, 'default_hidden_columns', 10, 2);
314 $this->loader->add_filter('hidden_columns', $seo_columns, 'hidden_columns', 10, 3);
315 $this->loader->add_action('admin_head', $seo_columns, 'print_styles');
316 $this->loader->add_action('admin_notices', $seo_columns, 'companion_plugin_notice');
317
318 // Initialize XML Sitemap auto-update hooks if enabled
319 // Note: Must not be gated by is_admin() because Gutenberg saves posts
320 // via the REST API where is_admin() returns false, and REST_REQUEST
321 // is not yet defined at plugin load time
322 if (get_option('metasync_sitemap_auto_update', false)) {
323 $sitemap_generator = new Metasync_Sitemap_Generator();
324 $sitemap_generator->setup_auto_update_hooks();
325 }
326 // Initialize Schema Markup functionality
327 $schema_markup = new Metasync_Schema_Markup($this->get_plugin_name(), $this->get_version());
328 $this->loader->add_action('wp_ajax_metasync_get_schema_fields', $schema_markup, 'ajax_get_schema_fields');
329 $this->loader->add_action('wp_ajax_metasync_preview_schema', $schema_markup, 'ajax_preview_schema');
330
331 // Initialize Breadcrumbs functionality
332 if (class_exists('Metasync_Breadcrumbs')) {
333 new Metasync_Breadcrumbs($this->get_plugin_name(), $this->get_version());
334 }
335 if (class_exists('Metasync_Breadcrumbs_Schema')) {
336 new Metasync_Breadcrumbs_Schema($this->get_plugin_name(), $this->get_version());
337 }
338
339 // Initialize Developer Panel (for endpoint switching)
340 if (class_exists('Metasync_Dev_Panel')) {
341 $dev_panel = new Metasync_Dev_Panel($this->get_plugin_name(), $this->get_version());
342 }
343
344 // Initialize Site Health integration
345 if (class_exists('Metasync_Site_Health')) {
346 $site_health = new Metasync_Site_Health();
347 $site_health->register_tests();
348 }
349
350 // Initialize endpoint URL filtering for staging mode
351 $this->init_endpoint_filtering();
352
353 }
354
355 /**
356 * Register all of the hooks related to the public-facing functionality
357 * of the plugin.
358 *
359 * @since 1.0.0
360 * @access private
361 */
362 private function define_public_hooks()
363 {
364 // Header and Footer code snippets
365 $code_snippets = new Metasync_Code_Snippets();
366
367 $this->loader->add_action('wp_head', $code_snippets, 'get_header_snippet');
368 $this->loader->add_action('wp_footer', $code_snippets, 'get_footer_snippet');
369
370 $plugin_public = new Metasync_Public($this->get_plugin_name(), $this->get_version());
371 $rest_api = $plugin_public->get_rest_api();
372 $seo_output = $plugin_public->get_seo_output();
373 $get_plugin_basename = sprintf('%1$s/%1$s.php', $this->plugin_name);
374
375 // Asset enqueue hooks (Metasync_Public)
376 $this->loader->add_action('wp_enqueue_scripts', $plugin_public, 'enqueue_styles');
377 $this->loader->add_action('wp_enqueue_scripts', $plugin_public, 'enqueue_scripts');
378 $this->loader->add_action('wp_enqueue_scripts', $plugin_public, 'enqueue_page_custom_css', 999);
379
380 // Elementor editor CSS injection
381 if (class_exists('\Elementor\Plugin')) {
382 $this->loader->add_action('elementor/preview/enqueue_styles', $plugin_public, 'enqueue_elementor_editor_css', 999);
383 }
384
385 // Divi builder CSS injection
386 if (function_exists('et_setup_theme')) {
387 $this->loader->add_action('wp_enqueue_scripts', $plugin_public, 'enqueue_divi_builder_css', 999);
388 }
389
390 // Initialize centralized SEO conflict handler (singleton — suppresses
391 // third-party SEO plugin descriptions when MetaSync provides its own).
392 Metasync_SEO_Conflict_Handler::get_instance();
393
394 // Term-level SEO plugin sync: propagate MetaSync term meta (category/tag
395 // archives) into Yoast/Rank Math/AIOSEO term storage on every write.
396 $this->loader->add_action('updated_term_meta', $this, 'on_term_meta_updated', 10, 4);
397 $this->loader->add_action('added_term_meta', $this, 'on_term_meta_updated', 10, 4);
398
399 // Post-level plugin sync: propagate MetaSync post meta into
400 // Yoast/Rank Math/AIOSEO post storage on every write.
401 $this->loader->add_action('updated_post_meta', $this, 'on_post_meta_updated', 10, 4);
402 $this->loader->add_action('added_post_meta', $this, 'on_post_meta_updated', 10, 4);
403 // Deletes matter too: clearing the last checkbox in a meta box removes
404 // the meta row, which fires neither hook above.
405 $this->loader->add_action('deleted_post_meta', $this, 'on_post_meta_deleted', 10, 3);
406
407 // SEO Output hooks (Metasync_Seo_Output)
408 $this->loader->add_action('wp_head', $seo_output, 'hook_metasync_metatags', 1, 1);
409 // LocalBusiness / Organization / Person JSON-LD from the Local Business page.
410 $this->loader->add_action('wp_head', $seo_output, 'output_local_business_schema', 2, 1);
411 $this->loader->add_action('template_redirect', $seo_output, 'inject_archive_seo_controls');
412
413 // Hreflang / language alternates output (wp_head @ priority 2).
414 $plugin_hreflang = new Metasync_Hreflang_Output();
415 $this->loader->add_action('wp_head', $plugin_hreflang, 'output_hreflang_tags', 2);
416
417 // Edge Cache: detect Cloudways Varnish and persist for settings UI
418 $this->loader->add_action('init', 'Metasync_Edge_Cache_Purge', 'detect_cloudways');
419
420 // BookingPress starts a PHP session on every front-end request (init
421 // at priority 1), which makes hosts skip page caching site-wide. Its
422 // booking flows manage their own sessions inside their AJAX handlers,
423 // so unhook the global start. Priority 0 keeps this ahead of theirs.
424 // Registered with add_action directly (like Metasync_Oxygen_Compat)
425 // because the loader's $component parameter is typed to objects.
426 add_action('init', ['Metasync_BookingPress_Compat', 'neutralize_bookingpress_session'], 0);
427
428 // Sitemap exclusions for disabled archive types
429 $this->loader->add_filter('wp_sitemaps_taxonomies', $seo_output, 'filter_sitemap_taxonomies');
430 $this->loader->add_filter('wp_sitemaps_users_entry', $seo_output, 'filter_sitemap_users', 10, 2);
431 $this->loader->add_filter('wp_sitemaps_add_provider', $seo_output, 'filter_sitemap_providers', 10, 2);
432 $this->loader->add_filter('wp_sitemaps_index_entry', $seo_output, 'filter_sitemap_index_entries', 10, 4);
433
434 // AMP cleanup functionality - remove metasync_optimized attribute from head on AMP pages
435 $this->loader->add_action('template_redirect', $seo_output, 'cleanup_amp_head_attribute', 1);
436 $this->loader->add_action('wp_footer', $seo_output, 'end_amp_head_cleanup', 999);
437
438 // Redirection functionality
439 $redirection = new Metasync_Redirection($this->db_redirection);
440 $this->loader->add_action('template_redirect', $redirection, 'handle_template_redirect', 5);
441
442 # Prevent WordPress from redirecting to draft posts via redirect_canonical
443 $this->loader->add_filter('redirect_canonical', $redirection, 'prevent_draft_post_redirects', 10, 2);
444
445 # Prevent WordPress old slug redirects to unpublished posts only
446 $this->loader->add_filter('old_slug_redirect_post_id', $redirection, 'prevent_old_slug_redirect_to_drafts', 10, 1);
447
448 // Auto-redirect on slug change - creates 301 redirect when post/page slug is changed
449 $auto_redirect = new Metasync_Auto_Redirect($this->db_redirection);
450 $auto_redirect->init();
451
452 # Custom HTML Pages functionality
453 # No additional loader hooks needed - class registers its own hooks
454 $custom_pages = new Metasync_Custom_Pages();
455
456 // 404 Error monitoring
457 $this->loader->add_action('template_redirect', $this, 'handle_404_monitoring', 10);
458 $this->loader->add_action('plugin_action_links_' . $get_plugin_basename, $plugin_public, 'metasync_plugin_links');
459
460 // REST API hooks (Metasync_Rest_Api)
461 $this->loader->add_action('rest_api_init', $rest_api, 'metasync_register_rest_routes');
462 // Coexist with third-party JWT auth plugins: clear their prior auth error
463 // for metasync/v1 requests when our own API key validates. The Tmeister
464 // "JWT Authentication for WP-API" plugin surfaces its jwt_auth_invalid_token
465 // 403 via rest_pre_dispatch (priority 10), so we hook the same filter at a
466 // later priority (11) to clear it for our namespace only.
467 $this->loader->add_filter('rest_pre_dispatch', $rest_api, 'allow_metasync_rest_auth', 11, 3);
468 // Coexist with site-wide "authenticated users only" REST restrictions.
469 // Those hook rest_authentication_errors, which WP applies before dispatch,
470 // so rest_pre_dispatch and permission_callback never run. Hook it late
471 // (99) to clear the error for metasync/v1 requests that present a valid
472 // plugin API key; every other route keeps the site's restriction.
473 $this->loader->add_filter('rest_authentication_errors', $rest_api, 'allow_metasync_rest_authentication', 99, 1);
474 $this->loader->add_action('init', $plugin_public, 'metasync_plugin_init', 5);
475 $this->loader->add_action('wp_ajax_metasync_lglogin', $rest_api, 'linkgraph_login');
476
477 // Robots meta filter (Metasync_Seo_Output)
478 $this->loader->add_filter('wp_robots', $seo_output, 'metasync_wp_robots_meta');
479
480
481
482 $metasyncTemplateClass = new Metasync_Template();
483 $this->loader->add_filter('theme_page_templates', $metasyncTemplateClass, 'metasync_template_landing_page', 10, 3);
484 $this->loader->add_filter('template_include', $metasyncTemplateClass, 'metasync_template_landing_page_load', 99 );
485 $templateCrawler = new MetaSyncHiddenPostManager(); # initialize the crawler class
486
487 $this->loader->add_action('wp_trash_post', $templateCrawler , 'prevent_post_deletion'); # Prevent post deletion when moved to trash
488 $this->loader->add_action('before_delete_post', $templateCrawler , 'prevent_post_deletion'); # Prevent permanent deletion
489 # $this->loader->add_filter('metasync_hidden_post_manager', $templateCrawler , 'init'); # run the crawler
490 # Hidden post manager now runs via cron instead of filter (to avoid interfering with post create/update)
491 $this->loader->add_action('metasync_hidden_post_check', $templateCrawler , 'init'); # run the crawler via cron
492
493 // Open Graph and Social Media Tags
494 $opengraph = new Metasync_OpenGraph($this->get_plugin_name(), $this->get_version());
495 $opengraph->init();
496
497 # Save current theme info to database (safe context - admin/init hooks)
498 $this->loader->add_action('after_switch_theme', $this, 'save_current_theme_info');
499 $this->loader->add_action('admin_init', $this, 'ensure_theme_info_saved');
500
501 // OTTO Frontend Toolbar
502 $otto_toolbar = new Metasync_Otto_Frontend_Toolbar($this->get_plugin_name(), $this->get_version());
503 $this->loader->add_action('wp_enqueue_scripts', $otto_toolbar, 'enqueue_styles');
504 $this->loader->add_action('wp_enqueue_scripts', $otto_toolbar, 'enqueue_scripts');
505 $this->loader->add_action('admin_bar_menu', $otto_toolbar, 'add_admin_bar_menu', 100);
506 $this->loader->add_action('wp_footer', $otto_toolbar, 'render_debug_bar', 999);
507
508 // Initialize Sitemap Generator on frontend (for virtual sitemap serving)
509 $sitemap_generator = new Metasync_Sitemap_Generator();
510
511 // Initialize LLMs.txt Generator (for virtual /llms.txt and /llms-full.txt serving)
512 require_once plugin_dir_path(dirname(__FILE__)) . 'includes/class-metasync-html-to-markdown.php';
513 require_once plugin_dir_path(dirname(__FILE__)) . 'llms-txt/class-metasync-llms-txt-generator.php';
514 $llms_txt_generator = new Metasync_Llms_Txt_Generator();
515
516 // Serve the IndexNow key file virtually at /{key}.txt so it works
517 // on read-only web roots and nginx hosts that 403 direct static .txt access.
518 require_once plugin_dir_path(dirname(__FILE__)) . 'bing-index/class-metasync-bing-instant-index.php';
519 add_action('template_redirect', array('Metasync_Bing_Instant_Index', 'serve_virtual_key_file'), 0);
520
521 // One-time upgrade: regenerate sitemap to remove any Beaver Builder template entries
522 if ( ! get_option( 'metasync_sitemap_bb_exclusion_applied' ) ) {
523 $this->loader->add_action('init', $this, 'maybe_regenerate_sitemap_after_upgrade');
524 }
525 }
526
527 /**
528 * One-time upgrade routine: regenerate the XML sitemap so that Beaver Builder
529 * template post types (fl-builder-template, fl-theme-layout) that were already
530 * present in previously-generated sitemaps are purged.
531 *
532 * Runs once on 'init' and sets a flag so it never runs again.
533 *
534 * @since 1.0.0
535 */
536 public function maybe_regenerate_sitemap_after_upgrade() {
537 $done_key = 'metasync_sitemap_bb_exclusion_applied';
538 if ( get_option( $done_key ) ) {
539 return;
540 }
541
542 // Only regenerate if the custom sitemap feature is actually in use.
543 if ( get_option( 'metasync_sitemap_auto_update', false ) || file_exists( ABSPATH . 'sitemap_index.xml' ) ) {
544 if ( ! class_exists( 'Metasync_Sitemap_Generator' ) ) {
545 require_once plugin_dir_path( dirname( __FILE__ ) ) . 'sitemap/class-metasync-sitemap-generator.php';
546 }
547 $sitemap = new Metasync_Sitemap_Generator();
548 $sitemap->generate_sitemap();
549 update_option( $done_key, true );
550 }
551 // If sitemap is not in use, don't set the flag — retry on next load
552 // so that enabling sitemaps later will still clean up BB templates.
553 }
554
555 /**
556 * Initialize endpoint URL filtering for staging mode
557 * Intercepts HTTP requests and replaces production URLs with staging URLs
558 */
559 private function init_endpoint_filtering() {
560 // Only add filter if Endpoint Manager is available and staging mode is active
561 if (!class_exists('Metasync_Endpoint_Manager') || !Metasync_Endpoint_Manager::is_staging_mode()) {
562 return;
563 }
564
565 // Add filter to intercept HTTP requests before they're sent
566 add_filter('pre_http_request', array($this, 'filter_http_request_urls'), 10, 3);
567 }
568
569 /**
570 * Filter HTTP request URLs to replace production endpoints with staging
571 *
572 * @param false|array|WP_Error $preempt Whether to preempt an HTTP request's return value.
573 * @param array $args HTTP request arguments.
574 * @param string $url The request URL.
575 * @return false|array|WP_Error
576 */
577 public function filter_http_request_urls($preempt, $args, $url) {
578 // Only process if we're not preempting the request
579 if ($preempt !== false) {
580 return $preempt;
581 }
582
583 // Only process if staging mode is active
584 if (!class_exists('Metasync_Endpoint_Manager') || !Metasync_Endpoint_Manager::is_staging_mode()) {
585 return $preempt;
586 }
587
588 // Define URL replacements (production => staging)
589 $url_replacements = array(
590 'https://dashboard.searchatlas.com' => 'https://dashboard.staging.searchatlas.com',
591 'https://api.searchatlas.com' => 'https://api.staging.searchatlas.com',
592 'https://ca.searchatlas.com' => 'https://ca.staging.searchatlas.com',
593 'https://sa.searchatlas.com' => 'https://sa.staging.searchatlas.com',
594 );
595
596 // Check if URL needs to be replaced
597 $original_url = $url;
598 foreach ($url_replacements as $production => $staging) {
599 if (strpos($url, $production) === 0) {
600 $url = str_replace($production, $staging, $url);
601 error_log("MetaSync Endpoint Filter: Replaced {$production} with {$staging} in URL: {$original_url}");
602 break;
603 }
604 }
605
606 // If URL was changed, modify the args and make the request ourselves
607 if ($url !== $original_url) {
608 // Make the request with the modified URL
609 return wp_remote_request($url, $args);
610 }
611
612 return $preempt;
613 }
614
615 /**
616 * Term meta update hook: mirror MetaSync term meta (`_metasync_*`)
617 * into the active third-party SEO plugins' term storage.
618 *
619 * Registered on both `updated_term_meta` and `added_term_meta` so new
620 * fields are synced the first time they are written as well as on
621 * subsequent updates.
622 *
623 * @param int $meta_id Meta row ID (unused).
624 * @param int $object_id Term ID.
625 * @param string $meta_key Meta key being written.
626 * @param mixed $meta_value Meta value being written.
627 */
628 public function on_term_meta_updated($meta_id, $object_id, $meta_key, $meta_value) {
629 if (strncmp($meta_key, '_metasync_', 10) !== 0) {
630 return;
631 }
632
633 if (!class_exists('Metasync_Term_Plugin_Sync')) {
634 return;
635 }
636
637 $term = get_term((int) $object_id);
638 if (!$term || is_wp_error($term)) {
639 return;
640 }
641
642 $canonical_map = [
643 '_metasync_metatitle' => 'title',
644 '_metasync_metadesc' => 'desc',
645 '_metasync_robots_index' => 'noindex',
646 '_metasync_canonical_url' => 'canonical',
647 '_metasync_og_title' => 'og_title',
648 '_metasync_og_description' => 'og_desc',
649 '_metasync_og_image' => 'og_image',
650 '_metasync_twitter_title' => 'twitter_title',
651 '_metasync_twitter_description' => 'twitter_desc',
652 ];
653
654 if (!isset($canonical_map[$meta_key])) {
655 return;
656 }
657
658 $canonical_key = $canonical_map[$meta_key];
659
660 Metasync_Term_Plugin_Sync::get_instance()->sync_term(
661 (int) $object_id,
662 (string) $term->taxonomy,
663 [$canonical_key => $meta_value]
664 );
665 }
666
667 /**
668 * Post meta update hook: mirror MetaSync post meta (`_metasync_*`)
669 * into the active third-party SEO plugins' post storage.
670 *
671 * Registered on both `updated_post_meta` and `added_post_meta` so new
672 * fields are synced the first time they are written as well as on
673 * subsequent updates.
674 *
675 * @param int $meta_id Meta row ID (unused).
676 * @param int $post_id Post ID.
677 * @param string $meta_key Meta key being written.
678 * @param mixed $meta_value Meta value being written.
679 */
680 public function on_post_meta_updated($meta_id, $post_id, $meta_key, $meta_value) {
681 if (!self::is_metasync_meta_key($meta_key)) {
682 return;
683 }
684
685 if (!self::sync_layer_handles('on_meta_updated')) {
686 return;
687 }
688
689 Metasync_Plugin_Sync::get_instance()->on_meta_updated($meta_id, $post_id, $meta_key, $meta_value);
690 }
691
692 /**
693 * Bridge deleted_post_meta to the sync layer.
694 *
695 * Clearing the last checkbox in a meta box deletes its meta row rather than
696 * updating it, so the update hooks above never fire and mirrored values can
697 * go stale. Only the legacy robots keys are acted on; see
698 * Metasync_Plugin_Sync::on_meta_deleted().
699 *
700 * @param array $meta_ids Meta row IDs (unused).
701 * @param int $post_id Post ID.
702 * @param string $meta_key Meta key being deleted.
703 */
704 public function on_post_meta_deleted($meta_ids, $post_id, $meta_key) {
705 if (!self::is_metasync_meta_key($meta_key)) {
706 return;
707 }
708
709 if (!self::sync_layer_handles('on_meta_deleted')) {
710 return;
711 }
712
713 Metasync_Plugin_Sync::get_instance()->on_meta_deleted($meta_ids, $post_id, $meta_key);
714 }
715
716 /**
717 * Is this meta key one the post sync layer could possibly care about?
718 *
719 * Cheap string gate, no autoload, no singleton. Every watched post key is
720 * either `_metasync_*` (sidebar, OTTO and the mirrored robots JSON) or
721 * `metasync_*` (the legacy meta box keys), so this keeps third-party meta
722 * writes out of the sync layer entirely — `deleted_post_meta` and
723 * `updated_post_meta` fire for every key on the site, including on front-end
724 * requests, and crossing into the sync layer for keys it will only discard
725 * costs an autoload plus a singleton on the hot path.
726 *
727 * Deliberately broader than the sync layer's own key maps: those stay the
728 * single source of exact truth, so a new MetaSync key needs no change here.
729 *
730 * @param string $meta_key Meta key being written or deleted.
731 * @return bool
732 */
733 private static function is_metasync_meta_key($meta_key) {
734 return strncmp($meta_key, '_metasync_', 10) === 0
735 || strncmp($meta_key, 'metasync_', 9) === 0;
736 }
737
738 /**
739 * Can the post sync layer actually handle this hook right now?
740 *
741 * A partially updated install can leave a newer class-metasync.php beside an
742 * older class-metasync-plugin-sync.php — stale opcache bytecode for one file
743 * is enough. Calling a method the loaded class does not define is a fatal,
744 * and because these bridges run on `wp_head` via third-party meta writes it
745 * takes the front end down rather than degrading. Check before dispatching.
746 *
747 * Checked on the class, not an instance, so a mismatch skips the singleton.
748 *
749 * @param string $method Sync-layer method about to be called.
750 * @return bool
751 */
752 private static function sync_layer_handles($method) {
753 return class_exists('Metasync_Plugin_Sync')
754 && method_exists('Metasync_Plugin_Sync', 'get_instance')
755 && method_exists('Metasync_Plugin_Sync', $method);
756 }
757
758 /**
759 * Save current theme information to MetaSync options
760 * This runs in WordPress admin context, not during REST API requests
761 * Safe to use wp_get_theme() here
762 */
763 public function save_current_theme_info() {
764 $theme = wp_get_theme();
765 $metasync_data = self::get_option();
766
767 if (!isset($metasync_data['general'])) {
768 $metasync_data['general'] = array();
769 }
770
771 $metasync_data['general']['current_theme_name'] = $theme->get('Name');
772 $metasync_data['general']['current_theme_template'] = $theme->get_template();
773 $metasync_data['general']['theme_info_updated'] = time();
774
775 self::set_option($metasync_data);
776 }
777
778 /**
779 * Ensure theme info is saved on admin_init if not already saved
780 * This ensures theme info is available even if theme wasn't switched
781 */
782 public function ensure_theme_info_saved() {
783 $metasync_data = self::get_option('general');
784
785 # Only run once per day to avoid overhead
786 if (empty($metasync_data['theme_info_updated']) ||
787 (time() - $metasync_data['theme_info_updated']) > 86400) {
788 $this->save_current_theme_info();
789 }
790 }
791
792 public static function get_option($key = null, $default = null)
793 {
794 $options = get_option(Metasync::option_name);
795 if (empty($options)) $options = [];
796 if ($key === null) return $options;
797 return $options[$key] ?? ($default !== null ? $default : null);
798 }
799
800 public static function set_option($data)
801 {
802 #return update_option(Metasync::option_name, $data);
803 $result = update_option(Metasync::option_name, $data);
804
805 // NEW: Structured error logging for database errors (only log if it's a real DB error)
806 global $wpdb;
807 if ($result === false && class_exists('Metasync_Error_Logger') && !empty($wpdb->last_error)) {
808 // Check if it's actually a database error (not just same value)
809 $saved_data = get_option(Metasync::option_name);
810 if ($saved_data !== $data) {
811 // Value is different but save failed - this is a real database error
812 Metasync_Error_Logger::log(
813 Metasync_Error_Logger::CATEGORY_DATABASE_ERROR,
814 Metasync_Error_Logger::SEVERITY_ERROR,
815 'Failed to save plugin main options to database',
816 [
817 'option_name' => Metasync::option_name,
818 'wpdb_error' => $wpdb->last_error,
819 'wpdb_last_query' => $wpdb->last_query,
820 'operation' => 'set_option',
821 'has_api_key' => !empty($data['general']['searchatlas_api_key'] ?? null),
822 'has_auth_token' => !empty($data['general']['apikey'] ?? null)
823 ]
824 );
825 }
826 }
827
828 return $result;
829 }
830
831 /**
832 * Derive the 32-byte AES key from existing WordPress salts.
833 *
834 * No new secret is stored anywhere — the key material is the concatenation
835 * of three WordPress salts, hashed to a fixed 32 bytes. If the salts change
836 * (e.g. wp-config regenerated) the derived key changes and previously
837 * encrypted values can no longer be decrypted, which is handled gracefully
838 * by the callers (re-authenticate state) rather than fataling.
839 *
840 * @return string 32 raw bytes.
841 */
842 private static function api_key_crypto_key()
843 {
844 $material = wp_salt('secure_auth') . wp_salt('logged_in') . wp_salt('nonce');
845 return hash('sha256', $material, true);
846 }
847
848 /**
849 * Determine whether a stored value is in the encrypted-at-rest format.
850 *
851 * @param mixed $value
852 * @return bool
853 */
854 public static function is_encrypted_api_key($value)
855 {
856 return is_string($value) && strncmp($value, self::API_KEY_ENC_PREFIX, strlen(self::API_KEY_ENC_PREFIX)) === 0;
857 }
858
859 /**
860 * Encrypt a plaintext Search Atlas API key for storage at rest.
861 *
862 * Uses AES-256-GCM (authenticated) with a random 12-byte IV. The IV, the
863 * 16-byte GCM tag and the ciphertext are concatenated and base64-encoded
864 * behind an `enc_v1:` prefix. An empty string is stored as-is (no key set).
865 *
866 * When OpenSSL is unavailable or encryption fails the plaintext is stored
867 * unchanged (availability over hard-fail) and the degradation is logged so
868 * it cannot go unnoticed.
869 *
870 * @param string $plaintext
871 * @return string Encrypted blob, or '' when $plaintext is empty.
872 */
873 public static function encrypt_api_key($plaintext)
874 {
875 $plaintext = (string) $plaintext;
876 if ($plaintext === '') {
877 return '';
878 }
879
880 // Already encrypted — do not double-encrypt.
881 if (self::is_encrypted_api_key($plaintext)) {
882 return $plaintext;
883 }
884
885 if (!function_exists('openssl_encrypt')) {
886 // OpenSSL unavailable — store plaintext rather than lose the key.
887 error_log('MetaSync: OpenSSL is unavailable — the Search Atlas API key was stored WITHOUT encryption at rest.');
888 return $plaintext;
889 }
890
891 $key = self::api_key_crypto_key();
892 $iv = random_bytes(12);
893 $tag = '';
894 $ciphertext = openssl_encrypt($plaintext, 'aes-256-gcm', $key, OPENSSL_RAW_DATA, $iv, $tag, '', 16);
895
896 if ($ciphertext === false) {
897 // Encryption failed — fall back to plaintext storage, but say so.
898 error_log('MetaSync: API key encryption failed — the Search Atlas API key was stored WITHOUT encryption at rest.');
899 return $plaintext;
900 }
901
902 return self::API_KEY_ENC_PREFIX . base64_encode($iv . $tag . $ciphertext);
903 }
904
905 /**
906 * Decrypt a stored Search Atlas API key value.
907 *
908 * Accepts either the encrypted `enc_v1:` format or a legacy plaintext value
909 * (returned unchanged, supporting installs that pre-date encryption). On any
910 * decryption failure (salt change / corruption) returns false so callers can
911 * surface a re-authenticate state instead of using a bad key.
912 *
913 * @param mixed $value
914 * @return string|false Plaintext, or false when an encrypted value cannot be decrypted.
915 */
916 public static function decrypt_api_key($value)
917 {
918 if (!is_string($value) || $value === '') {
919 return '';
920 }
921
922 if (!self::is_encrypted_api_key($value)) {
923 // Legacy plaintext key.
924 return $value;
925 }
926
927 if (!function_exists('openssl_decrypt')) {
928 return false;
929 }
930
931 $raw = base64_decode(substr($value, strlen(self::API_KEY_ENC_PREFIX)), true);
932 if ($raw === false || strlen($raw) < 12 + 16 + 1) {
933 return false;
934 }
935
936 $iv = substr($raw, 0, 12);
937 $tag = substr($raw, 12, 16);
938 $ciphertext = substr($raw, 28);
939
940 $key = self::api_key_crypto_key();
941 $plaintext = openssl_decrypt($ciphertext, 'aes-256-gcm', $key, OPENSSL_RAW_DATA, $iv, $tag);
942
943 if ($plaintext === false) {
944 return false;
945 }
946
947 return $plaintext;
948 }
949
950 /**
951 * Get the decrypted Search Atlas API key, memoized for the request.
952 *
953 * Decrypts at most once per request and never persists the decrypted value
954 * anywhere. When a legacy plaintext key is found it is migrated to the
955 * encrypted format in place (one-time migration on load). Returns:
956 * - the plaintext key (string, possibly '')
957 * - false when an encrypted value exists but cannot be decrypted
958 * (salts changed / corrupt) — callers should treat this as a
959 * "please re-authenticate" state.
960 *
961 * @return string|false
962 */
963 public static function get_searchatlas_api_key()
964 {
965 if (self::$memo_api_key !== null) {
966 return self::$memo_api_key;
967 }
968
969 $general = self::get_option('general');
970 $stored = is_array($general) ? ($general['searchatlas_api_key'] ?? '') : '';
971
972 // One-time migration: a non-empty legacy plaintext value is encrypted
973 // in place the first time it is read after this feature ships.
974 if ($stored !== '' && is_string($stored) && !self::is_encrypted_api_key($stored)) {
975 $encrypted = self::encrypt_api_key($stored);
976 if (self::is_encrypted_api_key($encrypted)) {
977 $options = self::get_option();
978 if (!is_array($options)) {
979 $options = [];
980 }
981 $options['general']['searchatlas_api_key'] = $encrypted;
982 self::set_option($options);
983 }
984 }
985
986 self::$memo_api_key = self::decrypt_api_key($stored);
987 return self::$memo_api_key;
988 }
989
990 /**
991 * Clear the request-scoped decrypted-key memo.
992 *
993 * Call after any write that changes the stored searchatlas_api_key so a
994 * subsequent read in the same request reflects the new value.
995 */
996 public static function invalidate_api_key_cache()
997 {
998 self::$memo_api_key = null;
999 }
1000
1001 /**
1002 * Read the heartbeat throttle state from its dedicated option.
1003 *
1004 * Backfills from the legacy location (`metasync_options['general']`) the
1005 * first time the dedicated option is empty, so existing installs keep
1006 * their throttle history across the migration.
1007 */
1008 public static function get_heartbeat_throttle(): array
1009 {
1010 $value = get_option(self::heartbeat_throttle_option, []);
1011 if (is_array($value) && !empty($value)) {
1012 return $value;
1013 }
1014
1015 $general = self::get_option('general');
1016 if (is_array($general) && (array_key_exists('last_heart_beat', $general) || array_key_exists('last_heartbeat_at', $general))) {
1017 $throttle = [
1018 'last_heart_beat' => $general['last_heart_beat'] ?? 0,
1019 'last_heartbeat_at' => $general['last_heartbeat_at'] ?? null,
1020 ];
1021 update_option(self::heartbeat_throttle_option, $throttle);
1022 return $throttle;
1023 }
1024
1025 return [];
1026 }
1027
1028 /**
1029 * Merge fields into the dedicated heartbeat throttle option.
1030 *
1031 * Writes via update_option directly so the main metasync_options blob is
1032 * never read or rewritten — avoiding the read-modify-write race with
1033 * concurrent settings saves.
1034 */
1035 public static function set_heartbeat_throttle(array $fields): void
1036 {
1037 $existing = get_option(self::heartbeat_throttle_option, []);
1038 if (!is_array($existing)) {
1039 $existing = [];
1040 }
1041 $merged = array_merge($existing, $fields);
1042 update_option(self::heartbeat_throttle_option, $merged);
1043 }
1044
1045 /**
1046 * Storage prefix marking a secret value as encrypted at rest.
1047 */
1048 private const SECRET_ENC_PREFIX = 'enc_v1:';
1049
1050 /**
1051 * Derive the 32-byte AES key from existing WordPress salts.
1052 *
1053 * No new secret is stored anywhere — the key material is the concatenation
1054 * of three WordPress salts, hashed to a fixed 32 bytes. If the salts change
1055 * (e.g. wp-config regenerated) the derived key changes and previously
1056 * encrypted values can no longer be decrypted, which callers handle
1057 * gracefully rather than fataling.
1058 *
1059 * @return string 32 raw bytes.
1060 */
1061 private static function secret_crypto_key()
1062 {
1063 $material = wp_salt('secure_auth') . wp_salt('logged_in') . wp_salt('nonce');
1064 return hash('sha256', $material, true);
1065 }
1066
1067 /**
1068 * Determine whether a stored value is in the encrypted-at-rest format.
1069 *
1070 * @param mixed $value
1071 * @return bool
1072 */
1073 public static function is_encrypted_secret($value)
1074 {
1075 return is_string($value) && strncmp($value, self::SECRET_ENC_PREFIX, strlen(self::SECRET_ENC_PREFIX)) === 0;
1076 }
1077
1078 /**
1079 * Encrypt a plaintext secret (e.g. the whitelabel settings password) for
1080 * storage at rest.
1081 *
1082 * Uses AES-256-GCM (authenticated) with a random 12-byte IV. The IV, the
1083 * 16-byte GCM tag and the ciphertext are concatenated and base64-encoded
1084 * behind an `enc_v1:` prefix. An empty string is stored as-is (no secret).
1085 *
1086 * When OpenSSL is unavailable or encryption fails the plaintext is stored
1087 * unchanged (availability over hard-fail) and the degradation is logged so
1088 * it cannot go unnoticed.
1089 *
1090 * @param string $plaintext
1091 * @return string Encrypted blob, or '' when $plaintext is empty.
1092 */
1093 public static function encrypt_secret($plaintext)
1094 {
1095 $plaintext = (string) $plaintext;
1096 if ($plaintext === '') {
1097 return '';
1098 }
1099
1100 // Already encrypted — do not double-encrypt.
1101 if (self::is_encrypted_secret($plaintext)) {
1102 return $plaintext;
1103 }
1104
1105 if (!function_exists('openssl_encrypt')) {
1106 // OpenSSL unavailable — store plaintext rather than lose the secret.
1107 error_log('MetaSync: OpenSSL is unavailable — a secret was stored WITHOUT encryption at rest.');
1108 return $plaintext;
1109 }
1110
1111 $key = self::secret_crypto_key();
1112 $iv = random_bytes(12);
1113 $tag = '';
1114 $ciphertext = openssl_encrypt($plaintext, 'aes-256-gcm', $key, OPENSSL_RAW_DATA, $iv, $tag, '', 16);
1115
1116 if ($ciphertext === false) {
1117 // Encryption failed — fall back to plaintext storage, but say so.
1118 error_log('MetaSync: Secret encryption failed — a secret was stored WITHOUT encryption at rest.');
1119 return $plaintext;
1120 }
1121
1122 return self::SECRET_ENC_PREFIX . base64_encode($iv . $tag . $ciphertext);
1123 }
1124
1125 /**
1126 * Decrypt a stored secret value.
1127 *
1128 * Accepts either the encrypted `enc_v1:` format or a legacy plaintext value
1129 * (returned unchanged, supporting installs that pre-date encryption). On any
1130 * decryption failure (salt change / corruption) returns false so callers can
1131 * degrade gracefully instead of using a bad value.
1132 *
1133 * @param mixed $value
1134 * @return string|false Plaintext, or false when an encrypted value cannot be decrypted.
1135 */
1136 public static function decrypt_secret($value)
1137 {
1138 if (!is_string($value) || $value === '') {
1139 return '';
1140 }
1141
1142 if (!self::is_encrypted_secret($value)) {
1143 // Legacy plaintext value.
1144 return $value;
1145 }
1146
1147 if (!function_exists('openssl_decrypt')) {
1148 return false;
1149 }
1150
1151 $raw = base64_decode(substr($value, strlen(self::SECRET_ENC_PREFIX)), true);
1152 if ($raw === false || strlen($raw) < 12 + 16 + 1) {
1153 return false;
1154 }
1155
1156 $iv = substr($raw, 0, 12);
1157 $tag = substr($raw, 12, 16);
1158 $ciphertext = substr($raw, 28);
1159
1160 $key = self::secret_crypto_key();
1161 $plaintext = openssl_decrypt($ciphertext, 'aes-256-gcm', $key, OPENSSL_RAW_DATA, $iv, $tag);
1162
1163 if ($plaintext === false) {
1164 return false;
1165 }
1166
1167 return $plaintext;
1168 }
1169
1170 /**
1171 * Get the decrypted whitelabel settings password.
1172 *
1173 * Reads the stored (encrypted) value and returns the plaintext for
1174 * verification or authorized display. A legacy plaintext value found in
1175 * storage is migrated to the encrypted format in place (one-time migration
1176 * on read). Returns '' when no password is set or when an encrypted value
1177 * can no longer be decrypted (salts changed / corrupt) — in that case the
1178 * stored value still counts as "password set" for protection checks, but
1179 * the user password cannot authenticate until it is reset.
1180 *
1181 * @return string
1182 */
1183 public static function get_whitelabel_password()
1184 {
1185 $whitelabel = self::get_whitelabel_settings();
1186 $stored = $whitelabel['settings_password'] ?? '';
1187
1188 if (!is_string($stored) || $stored === '') {
1189 return '';
1190 }
1191
1192 // One-time migration: encrypt a legacy plaintext value in place.
1193 // This is a whole-blob read-modify-write of metasync_options during a
1194 // read request; a concurrent settings save could theoretically clobber
1195 // it, but it fires at most once per legacy install so the window is
1196 // accepted rather than adding a dedicated option.
1197 if (!self::is_encrypted_secret($stored)) {
1198 $encrypted = self::encrypt_secret($stored);
1199 if (self::is_encrypted_secret($encrypted)) {
1200 $options = self::get_option();
1201 if (!is_array($options)) {
1202 $options = [];
1203 }
1204 $options['whitelabel']['settings_password'] = $encrypted;
1205 self::set_option($options);
1206 }
1207 return $stored;
1208 }
1209
1210 $plaintext = self::decrypt_secret($stored);
1211 return $plaintext === false ? '' : $plaintext;
1212 }
1213
1214 /**
1215 * Get whitelabel settings
1216 * Helper method to retrieve whitelabel configuration
1217 */
1218 public static function get_whitelabel_settings()
1219 {
1220 $whitelabel = self::get_option('whitelabel');
1221 return is_array($whitelabel) ? $whitelabel : array(
1222 'is_whitelabel' => false,
1223 'domain' => '',
1224 'logo' => '',
1225 'logo_light' => '',
1226 'logo_dark' => '',
1227 'company_name' => '',
1228 'color_palette' => array(),
1229 'updated_at' => 0
1230 );
1231 }
1232
1233 /**
1234 * Check if whitelabel mode is enabled
1235 */
1236 public static function is_whitelabel_enabled()
1237 {
1238 $whitelabel = self::get_whitelabel_settings();
1239 return isset($whitelabel['is_whitelabel']) && $whitelabel['is_whitelabel'] === true;
1240 }
1241
1242 /**
1243 * Get effective dashboard domain for the plugin
1244 * Returns whitelabel domain if set (regardless of is_whitelabel flag), otherwise respects staging/production mode
1245 */
1246 public static function get_dashboard_domain()
1247 {
1248 $whitelabel = self::get_whitelabel_settings();
1249
1250 // Priority 1: Use whitelabel domain if it's not empty (regardless of is_whitelabel flag)
1251 if (!empty($whitelabel['domain'])) {
1252 return $whitelabel['domain'];
1253 }
1254
1255 // Priority 2: Use endpoint manager to respect staging/production mode
1256 if (class_exists('Metasync_Endpoint_Manager')) {
1257 return Metasync_Endpoint_Manager::get_endpoint('DASHBOARD_DOMAIN');
1258 }
1259
1260 // Priority 3: Fallback to production default domain
1261 return self::DASHBOARD_DOMAIN;
1262 }
1263
1264 /**
1265 * Get whitelabel logo URL
1266 * Returns the whitelabel logo URL if logo is set
1267 */
1268 public static function get_whitelabel_logo()
1269 {
1270 $whitelabel = self::get_whitelabel_settings();
1271
1272 // Return logo if it's set and is a valid URL
1273 // Users should be able to set a custom logo without requiring a custom domain
1274 if (!empty($whitelabel['logo'])) {
1275 return $whitelabel['logo'];
1276 }
1277
1278 return null;
1279 }
1280
1281 /**
1282 * Get whitelabel logo URL for light theme
1283 * Falls back to legacy 'logo' field if logo_light is not set
1284 */
1285 public static function get_whitelabel_logo_light()
1286 {
1287 $whitelabel = self::get_whitelabel_settings();
1288
1289 if (!empty($whitelabel['logo_light'])) {
1290 return $whitelabel['logo_light'];
1291 }
1292
1293 if (!empty($whitelabel['logo'])) {
1294 return $whitelabel['logo'];
1295 }
1296
1297 return null;
1298 }
1299
1300 /**
1301 * Get whitelabel logo URL for dark theme
1302 * Falls back to legacy 'logo' field if logo_dark is not set
1303 */
1304 public static function get_whitelabel_logo_dark()
1305 {
1306 $whitelabel = self::get_whitelabel_settings();
1307
1308 if (!empty($whitelabel['logo_dark'])) {
1309 return $whitelabel['logo_dark'];
1310 }
1311
1312 if (!empty($whitelabel['logo'])) {
1313 return $whitelabel['logo'];
1314 }
1315
1316 return null;
1317 }
1318
1319 /**
1320 * Get whitelabel company name
1321 * Returns the whitelabel company name if whitelabel is active and company name is set
1322 */
1323 public static function get_whitelabel_company_name()
1324 {
1325 $whitelabel = self::get_whitelabel_settings();
1326
1327 // Return company name only if whitelabel is active and company name is set
1328 if (isset($whitelabel['is_whitelabel']) && $whitelabel['is_whitelabel'] === true && !empty($whitelabel['company_name'])) {
1329 return $whitelabel['company_name'];
1330 }
1331
1332 return null;
1333 }
1334
1335 /**
1336 * Get whitelabel OTTO name
1337 * Returns the custom OTTO name if set, otherwise returns 'OTTO'
1338 */
1339 public static function get_whitelabel_otto_name()
1340 {
1341 $general_settings = self::get_option('general');
1342
1343 // Return custom OTTO name if set, otherwise fallback to 'OTTO'
1344 if (!empty($general_settings['whitelabel_otto_name'])) {
1345 return $general_settings['whitelabel_otto_name'];
1346 }
1347
1348 return 'OTTO';
1349 }
1350
1351 /**
1352 * Check if the current user has access to the plugin based on role settings
1353 *
1354 * @return bool True if user has access, false otherwise
1355 */
1356 public static function current_user_has_plugin_access()
1357 {
1358 $user = wp_get_current_user();
1359 if (!$user || !$user->exists()) {
1360 return false;
1361 }
1362
1363 // Administrators always have access
1364 if (in_array('administrator', (array) $user->roles)) {
1365 return true;
1366 }
1367
1368 // Get the plugin access roles setting
1369 $general_options = self::get_option('general');
1370
1371 // If setting not configured, default to admin-only access
1372 if (!isset($general_options['plugin_access_roles'])) {
1373 return false;
1374 }
1375
1376 $allowed_roles = $general_options['plugin_access_roles'];
1377
1378 // If it's a string (single role), convert to array
1379 if (!is_array($allowed_roles)) {
1380 $allowed_roles = array($allowed_roles);
1381 }
1382
1383 // If "all" is selected, allow access
1384 if (in_array('all', $allowed_roles)) {
1385 return true;
1386 }
1387
1388 // If array is empty, deny access (only admins allowed)
1389 if (empty($allowed_roles)) {
1390 return false;
1391 }
1392
1393 // Check if user has any of the allowed roles
1394 $user_roles = (array) $user->roles;
1395 return !empty(array_intersect($user_roles, $allowed_roles));
1396 }
1397
1398 /**
1399 * Get active JWT token for Search Atlas API authentication
1400 * Convenience method accessible from anywhere in the plugin
1401 *
1402 * @param bool $force_refresh Force generation of new token even if cached one exists
1403 * @return string|false JWT token on success, false on failure
1404 */
1405 public static function get_jwt_token($force_refresh = false)
1406 {
1407 // Delegate to admin class method
1408 return Metasync_Admin::get_active_jwt_token($force_refresh);
1409 }
1410
1411 /**
1412 * Get effective plugin name
1413 * Returns plugin name respecting white label settings
1414 * Priority: 1) white_label_plugin_name 2) company branding + base_name 3) base_name
1415 */
1416 public static function get_effective_plugin_name($base_name = 'Search Atlas')
1417 {
1418 $general_settings = self::get_option('general');
1419
1420 // Priority 1: Use white_label_plugin_name if set and not empty
1421 if (!empty($general_settings['white_label_plugin_name'])) {
1422 return $general_settings['white_label_plugin_name'];
1423 }
1424
1425 $whitelabel = self::get_whitelabel_settings();
1426
1427 // Priority 2: If whitelabel is enabled and company name is provided, enhance the plugin name
1428 if (isset($whitelabel['is_whitelabel']) && $whitelabel['is_whitelabel'] === true && !empty($whitelabel['company_name'])) {
1429 return $whitelabel['company_name'] . ' ' . $base_name;
1430 }
1431
1432 // Priority 3: Return base_name as fallback
1433 return $base_name;
1434 }
1435
1436 /**
1437 * Render a standalone info-icon tooltip (the same visual/JS pattern used by
1438 * get_field_tooltips() + render_accordion_sections() in Metasync_Settings_Fields).
1439 * Use this on any admin page whose fields are NOT rendered through that
1440 * accordion field-loop (custom render_callback pages, standalone view files) —
1441 * the trigger/hover/positioning JS in admin/js/metasync-admin.js binds to
1442 * `.metasync-tooltip-trigger` globally, so no extra wiring is needed as long
1443 * as this markup is present on a page where metasync-admin.js is enqueued
1444 * (i.e. any admin page under this plugin's menu).
1445 *
1446 * @param string $tooltip_id Unique id for this tooltip (unique per page).
1447 * @param string $text Plain-English help text (escaped internally).
1448 */
1449 public static function render_tooltip_icon($tooltip_id, $text)
1450 {
1451 echo self::get_tooltip_icon_html($tooltip_id, $text);
1452 }
1453
1454 /**
1455 * Same tooltip markup as render_tooltip_icon(), but RETURNS the HTML string
1456 * instead of echoing it. Use this when the tooltip needs to be concatenated
1457 * into another string — e.g. appended to the $title argument of
1458 * add_settings_field(), which WordPress core echoes raw next to the label.
1459 *
1460 * The whole trigger+popup pair is wrapped in its own small
1461 * `position: relative` anchor span. The popup CSS (.metasync-tooltip) is
1462 * `position: absolute; left: 100%` and positions itself relative to the
1463 * nearest positioned ancestor — on the main settings accordion that's the
1464 * `.metasync-field-label-wrapper` div, but standalone pages (custom
1465 * render_callback templates, add_settings_field titles on plain
1466 * do_settings_sections() pages, etc.) usually have no such ancestor, so
1467 * the popup would escape to whatever distant positioned element exists
1468 * on the page (rendering in the wrong corner of the screen). Wrapping
1469 * here makes every tooltip self-contained regardless of where it's placed.
1470 *
1471 * @param string $tooltip_id Unique id for this tooltip (unique per page).
1472 * @param string $text Plain-English help text (escaped internally).
1473 * @return string HTML markup for the info-icon trigger + tooltip content.
1474 */
1475 public static function get_tooltip_icon_html($tooltip_id, $text)
1476 {
1477 $html = '<span class="metasync-tooltip-anchor" style="position:relative;display:inline-block;vertical-align:middle;margin-left:8px;">';
1478 $html .= '<button type="button" class="metasync-tooltip-trigger" data-tooltip-id="' . esc_attr($tooltip_id) . '" aria-label="More information">';
1479 $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">';
1480 $html .= '<circle cx="12" cy="12" r="10"></circle>';
1481 $html .= '<path d="M9.09 9a3 3 0 0 1 5.83 1c0 2-3 3-3 3"></path>';
1482 $html .= '<line x1="12" y1="17" x2="12.01" y2="17"></line>';
1483 $html .= '</svg>';
1484 $html .= '</button>';
1485
1486 $html .= '<div class="metasync-tooltip" id="tooltip-' . esc_attr($tooltip_id) . '" role="tooltip">';
1487 $html .= '<div class="metasync-tooltip-arrow"></div>';
1488 $html .= '<div class="metasync-tooltip-content">' . esc_html($text) . '</div>';
1489 $html .= '</div>';
1490 $html .= '</span>';
1491
1492 return $html;
1493 }
1494
1495 /**
1496 * Centralized API Key Event Logging
1497 * Provides structured logging for all API key related events with consistent formatting
1498 *
1499 * @since 1.0.0
1500 * @param string $event_type Type of event (change, refresh, reset, etc.)
1501 * @param string $api_key_type Type of API key (plugin_auth_token, searchatlas_api_key)
1502 * @param array $details Additional details about the event
1503 * @param string $level Log level (info, warning, error)
1504 */
1505 public static function log_api_key_event($event_type, $api_key_type, $details = array(), $level = 'info')
1506 {
1507 try {
1508 // Build structured log entry
1509 $log_data = array(
1510 'timestamp' => current_time('mysql'),
1511 'event_type' => $event_type,
1512 'api_key_type' => $api_key_type,
1513 'level' => $level
1514 );
1515
1516 // Add details if provided
1517 if (!empty($details)) {
1518 $log_data['details'] = $details;
1519 }
1520
1521 // Format log message with consistent structure
1522 $log_prefix = strtoupper($level) . ' - MetaSync API Key Event';
1523 $log_message = sprintf('[%s] %s: %s (%s)',
1524 $log_data['timestamp'],
1525 $log_prefix,
1526 $event_type,
1527 $api_key_type
1528 );
1529
1530 // Add details to log message if present
1531 if (!empty($details)) {
1532 $formatted_details = array();
1533 foreach ($details as $key => $value) {
1534 $formatted_details[] = $key . ': ' . (is_string($value) ? $value : json_encode($value));
1535 }
1536 $log_message .= ' - ' . implode(', ', $formatted_details);
1537 }
1538
1539
1540 // Optionally store in database for admin dashboard (future enhancement)
1541 // This could be extended to store in a dedicated log table
1542
1543 } catch (Exception $e) {
1544 // Fallback logging if structured logging fails
1545 error_log('MetaSync API Key Event Logging Error: ' . $e->getMessage());
1546 }
1547 }
1548
1549 /**
1550 * Handle 404 error monitoring
1551 */
1552 public function handle_404_monitoring()
1553 {
1554 // Only process on frontend
1555 if (is_admin()) {
1556 return;
1557 }
1558
1559 // Check if this is a 404 error
1560 if (!is_404()) {
1561 return;
1562 }
1563
1564 // PROTECTION 0: Skip WordPress system paths — these are not "broken links"
1565 $request_uri = $_SERVER['REQUEST_URI'] ?? '';
1566 $skip_prefixes = [
1567 '/wp-json/',
1568 '/wp-admin/',
1569 '/feed/',
1570 '/xmlrpc.php',
1571 '/wp-login.php',
1572 '/wp-cron.php',
1573 ];
1574 foreach ($skip_prefixes as $prefix) {
1575 if (stripos($request_uri, $prefix) === 0) {
1576 return;
1577 }
1578 }
1579
1580 // PROTECTION 1: Exclude static assets to reduce noise
1581 $static_extensions = ['.css', '.js', '.jpg', '.jpeg', '.png', '.gif', '.ico', '.svg', '.woff', '.woff2', '.ttf', '.eot', '.map','.webp'];
1582 foreach ($static_extensions as $ext) {
1583 if (stripos($request_uri, $ext) !== false) {
1584 return; // Skip logging static asset 404s
1585 }
1586 }
1587
1588 // PROTECTION 2: Bot detection - Block known bot patterns
1589 $user_agent = $_SERVER['HTTP_USER_AGENT'] ?? '';
1590 $bot_patterns = ['bot', 'crawler', 'spider', 'scraper', 'curl', 'wget', 'python', 'java'];
1591 foreach ($bot_patterns as $pattern) {
1592 if (stripos($user_agent, $pattern) !== false) {
1593 // Rate limit bot 404s more aggressively
1594 $bot_rate_key = 'metasync_404_bot_rate';
1595 $bot_hits = get_transient($bot_rate_key);
1596 if ($bot_hits !== false && $bot_hits >= 10) {
1597 // Bot has hit 10+ 404s in last minute - stop logging
1598 return;
1599 }
1600 set_transient($bot_rate_key, $bot_hits === false ? 1 : $bot_hits + 1, 60);
1601 break;
1602 }
1603 }
1604
1605 // PROTECTION 3: Global rate limiting - Prevent 404 logging storms
1606 $global_rate_key = 'metasync_404_global_rate';
1607 $global_hits = get_transient($global_rate_key);
1608 if ($global_hits !== false && $global_hits >= 50) {
1609 // More than 50 404s per minute - stop logging to protect database
1610 if ($global_hits === 50) {
1611 error_log('MetaSync 404 Monitor: Rate limit exceeded - 50+ 404s per minute. Pausing logging.');
1612 }
1613 set_transient($global_rate_key, $global_hits + 1, 60);
1614 return;
1615 }
1616 set_transient($global_rate_key, $global_hits === false ? 1 : $global_hits + 1, 60);
1617
1618 // Get current URL
1619 $current_url = $this->get_current_url();
1620
1621 // PROTECTION 4: Per-URL caching - Prevent same URL from being logged repeatedly
1622 $url_cache_key = 'metasync_404_cached_' . md5($current_url);
1623 if (get_transient($url_cache_key)) {
1624 // This URL was already logged in last 5 minutes - skip DB write
1625 return;
1626 }
1627
1628 // PROTECTION 5: URL validation - Skip obviously malicious URLs
1629 if (strlen($current_url) > 500 || preg_match('/[<>{}\\\\|]/', $current_url)) {
1630 return; // Skip potentially malicious or malformed URLs
1631 }
1632
1633 // Initialize 404 monitor database
1634 require_once plugin_dir_path(dirname(__FILE__)) . '404-monitor/class-metasync-404-monitor-database.php';
1635 $db_404 = new Metasync_Error_Monitor_Database();
1636
1637 // Get user agent (sanitized)
1638 $user_agent = isset($_SERVER['HTTP_USER_AGENT']) ? sanitize_text_field($_SERVER['HTTP_USER_AGENT']) : '';
1639
1640 // Log the 404 error
1641 $result = $db_404->update([
1642 'uri' => $current_url,
1643 'user_agent' => $user_agent,
1644 'date_time' => current_time('mysql'),
1645 'hits_count' => 1
1646 ]);
1647
1648 // Cache this URL for 5 minutes to prevent repeated DB writes
1649 set_transient($url_cache_key, true, 300);
1650 }
1651
1652 /**
1653 * Get current URL
1654 */
1655 private function get_current_url()
1656 {
1657 $protocol = is_ssl() ? 'https://' : 'http://';
1658
1659 // Safely get HTTP_HOST with fallback
1660 $host = isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : '';
1661 if (empty($host) && isset($_SERVER['SERVER_NAME'])) {
1662 $host = $_SERVER['SERVER_NAME'];
1663 }
1664 if (empty($host)) {
1665 // Fallback to WordPress site URL if available
1666 $host = parse_url(home_url(), PHP_URL_HOST);
1667 }
1668
1669 // Safely get REQUEST_URI with fallback
1670 $uri = isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : '/';
1671
1672 // Decode URL-encoded characters
1673 $uri = urldecode($uri);
1674
1675 // Ensure URI starts with /
1676 if (!str_starts_with($uri, '/')) {
1677 $uri = '/' . $uri;
1678 }
1679
1680 return $protocol . $host . $uri;
1681 }
1682
1683 /**
1684 * Run the loader to execute all of the hooks with WordPress.
1685 *
1686 * @since 1.0.0
1687 */
1688 public function run()
1689 {
1690 $this->loader->run();
1691 }
1692
1693 /**
1694 * The name of the plugin used to uniquely identify it within the context of
1695 * WordPress and to define internationalization functionality.
1696 *
1697 * @since 1.0.0
1698 * @return string The name of the plugin.
1699 */
1700 public function get_plugin_name()
1701 {
1702 return $this->plugin_name;
1703 }
1704
1705 /**
1706 * The reference to the class that orchestrates the hooks with the plugin.
1707 *
1708 * @since 1.0.0
1709 * @return Metasync_Loader Orchestrates the hooks of the plugin.
1710 */
1711 public function get_loader()
1712 {
1713 return $this->loader;
1714 }
1715
1716 /**
1717 * Retrieve the version number of the plugin.
1718 *
1719 * @since 1.0.0
1720 * @return string The version number of the plugin.
1721 */
1722 public function get_version()
1723 {
1724 return $this->version;
1725 }
1726 }
1727