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MxChat – AI Chatbot & Content Generation for WordPress / 3.2.23
MxChat – AI Chatbot & Content Generation for WordPress v3.2.23
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← All changes | admin/class-ajax-handler.php +598 -17 3.2.8 → 3.2.23 View file →
@@ -27,8 +27,9 @@
27 27 private function mxchat_init_ajax_hooks() {
28 28 // Settings AJAX
29 29 add_action('wp_ajax_mxchat_save_setting', array($this, 'mxchat_save_setting_callback'));
30 30 add_action('wp_ajax_mxchat_save_prompts_setting', array($this, 'mxchat_save_prompts_setting_callback'));
31 + add_action('wp_ajax_mxchat_acf_toggle_group', array($this, 'mxchat_acf_toggle_group_callback'));
31 32 add_action('wp_ajax_migrate_pinecone_settings', array($this, 'ajax_migrate_pinecone_settings'));
32 33
33 34 // License AJAX
34 35 add_action('wp_ajax_mxchat_handle_activate_license', array($this, 'mxchat_handle_activate_license'));
@@ -53,11 +54,119 @@
53 54 add_action('wp_ajax_mxchat_reset_global_rate_limit', array($this, 'mxchat_reset_global_rate_limit_callback'));
54 55
55 56 // Custom (OpenAI-compatible) Provider connection test
56 57 add_action('wp_ajax_mxchat_test_custom_provider', array($this, 'mxchat_test_custom_provider_callback'));
58 +
59 + // Built-in provider key validation — cheap per-provider auth check (plan-mxchat-20260623-c41f74)
60 + add_action('wp_ajax_mxchat_test_provider_key', array($this, 'mxchat_test_provider_key_callback'));
61 +
62 + // Custom Post Meta discovery scan for the KB whitelist picker (plan-mxchat-20260709-fe8e4e)
63 + add_action('wp_ajax_mxchat_scan_custom_meta_keys', array($this, 'mxchat_scan_custom_meta_keys_callback'));
57 64 }
58 65
59 66 /**
67 + * Discover non-ACF custom post-meta keys present on published public content, so the
68 + * KB → Custom Post Meta section can offer a click-to-add picker instead of a blind
69 + * "type the exact key you already know" textarea. plan-mxchat-20260709-fe8e4e.
70 + *
71 + * Bounded + button-triggered only (never on page load). Returns up to 50 keys by
72 + * frequency, each with a short sample value, so the owner can judge relevance before
73 + * whitelisting. Underscore-prefixed (protected/internal) keys are hidden unless the
74 + * caller opts in; ACF-managed keys are excluded so this picker never double-lists the
75 + * sibling ACF discovery picker on the same page.
76 + */
77 +public function mxchat_scan_custom_meta_keys_callback() {
78 + check_ajax_referer('mxchat_prompts_setting_nonce');
79 +
80 + if (!current_user_can('manage_options')) {
81 + wp_send_json_error(['message' => esc_html__('Unauthorized', 'mxchat')]);
82 + }
83 +
84 + global $wpdb;
85 +
86 + $include_internal = isset($_POST['include_internal']) && $_POST['include_internal'] === '1';
87 +
88 + // Restrict discovery to public post types (the content the KB actually embeds).
89 + $post_types = get_post_types(array('public' => true), 'names');
90 + if (empty($post_types)) {
91 + wp_send_json_success(array('keys' => array(), 'scanned' => 0));
92 + }
93 + $pt_placeholders = implode(',', array_fill(0, count($post_types), '%s'));
94 +
95 + // Build the set of ACF-managed meta keys to exclude. ACF stores, alongside each
96 + // value key `foo`, a reference key `_foo` whose value is the ACF field key
97 + // (`field_xxxxx`). Strip the leading underscore from every such reference key to
98 + // get the real meta key, and exclude those — the ACF picker on this page owns them.
99 + $acf_managed = array();
100 + $acf_refs = $wpdb->get_col(
101 + $wpdb->prepare(
102 + "SELECT DISTINCT meta_key FROM {$wpdb->postmeta} WHERE meta_key LIKE %s AND meta_value LIKE %s",
103 + $wpdb->esc_like('_') . '%',
104 + $wpdb->esc_like('field_') . '%'
105 + )
106 + );
107 + foreach ((array) $acf_refs as $ref_key) {
108 + if (strlen($ref_key) > 1 && $ref_key[0] === '_') {
109 + $acf_managed[substr($ref_key, 1)] = true;
110 + }
111 + }
112 +
113 + // Discover keys + counts + a sample value in one bounded aggregate query.
114 + // SUBSTRING(MIN(...)) keeps the sample selection ONLY_FULL_GROUP_BY-safe.
115 + $params = $post_types;
116 + $sql = "SELECT pm.meta_key AS mk, COUNT(*) AS n, SUBSTRING(MIN(pm.meta_value), 1, 200) AS sample
117 + FROM {$wpdb->postmeta} pm
118 + INNER JOIN {$wpdb->posts} p ON p.ID = pm.post_id
119 + WHERE p.post_status = 'publish'
120 + AND p.post_type IN ($pt_placeholders)
121 + AND pm.meta_key <> ''";
122 + if (!$include_internal) {
123 + $sql .= " AND pm.meta_key NOT LIKE %s";
124 + $params[] = $wpdb->esc_like('_') . '%';
125 + }
126 + $sql .= " GROUP BY pm.meta_key ORDER BY n DESC, pm.meta_key ASC LIMIT 200";
127 +
128 + // phpcs:ignore WordPress.DB.PreparedSQL — placeholders assembled above, values in $params.
129 + $rows = $wpdb->get_results($wpdb->prepare($sql, $params));
130 +
131 + $keys = array();
132 + foreach ((array) $rows as $row) {
133 + $mk = $row->mk;
134 + if (isset($acf_managed[$mk])) {
135 + continue; // already offered by the ACF picker
136 + }
137 +
138 + $raw = (string) $row->sample;
139 + if ($raw !== '' && (is_serialized($raw) || preg_match('/^(a:\d+:\{|O:\d+:"|s:\d+:")/', $raw))) {
140 + $sample = esc_html__('[structured value]', 'mxchat');
141 + } else {
142 + $sample = trim(preg_replace('/\s+/', ' ', $raw));
143 + if (function_exists('mb_strlen') ? mb_strlen($sample) > 60 : strlen($sample) > 60) {
144 + $sample = (function_exists('mb_substr') ? mb_substr($sample, 0, 60) : substr($sample, 0, 60)) . '…';
145 + }
146 + if ($sample === '') {
147 + $sample = esc_html__('(empty value)', 'mxchat');
148 + }
149 + }
150 +
151 + $keys[] = array(
152 + 'key' => $mk,
153 + 'count' => (int) $row->n,
154 + 'sample' => $sample,
155 + );
156 +
157 + if (count($keys) >= 50) {
158 + break;
159 + }
160 + }
161 +
162 + wp_send_json_success(array(
163 + 'keys' => $keys,
164 + 'scanned' => is_array($rows) ? count($rows) : 0,
165 + ));
166 +}
167 +
168 +/**
60 169 * Test connection to a Custom (OpenAI-compatible) provider by hitting its /models endpoint
61 170 * with whichever auth scheme the user configured. Reports model count or a clean error.
62 171 */
63 172 public function mxchat_test_custom_provider_callback() {
@@ -125,8 +234,122 @@
125 234 'count' => $count,
126 235 ));
127 236 }
128 237
238 +/**
239 + * Validate a BUILT-IN provider key with the lightest authenticated call per
240 + * provider (a /models or key-info GET — never a generation). Reads the posted
241 + * key value so the owner can test BEFORE saving; falls back to the saved option
242 + * when the field is empty. Mirrors mxchat_test_custom_provider_callback and the
243 + * add-on test buttons (cf5bd5 veo / 8d16f1 perplexity). The key is never logged.
244 + * plan-mxchat-20260623-c41f74.
245 + */
246 +public function mxchat_test_provider_key_callback() {
247 + check_ajax_referer('mxchat_test_provider_key');
248 + if (!current_user_can('manage_options')) {
249 + wp_send_json_error(array('message' => esc_html__('Unauthorized', 'mxchat')));
250 + }
251 +
252 + $provider = isset($_POST['provider']) ? sanitize_key(wp_unslash($_POST['provider'])) : '';
253 + $posted_key = isset($_POST['key']) ? trim((string) wp_unslash($_POST['key'])) : '';
254 +
255 + $option_map = array(
256 + 'openai' => 'api_key',
257 + 'xai' => 'xai_api_key',
258 + 'claude' => 'claude_api_key',
259 + 'deepseek' => 'deepseek_api_key',
260 + 'gemini' => 'gemini_api_key',
261 + 'openrouter' => 'openrouter_api_key',
262 + );
263 + if (!isset($option_map[$provider])) {
264 + wp_send_json_error(array('message' => esc_html__('Unknown provider.', 'mxchat')));
265 + }
266 +
267 + // Prefer the just-typed value (test-before-save); fall back to the saved key.
268 + $key = $posted_key;
269 + if ($key === '') {
270 + $options = get_option('mxchat_options', array());
271 + $key = isset($options[$option_map[$provider]]) ? trim((string) $options[$option_map[$provider]]) : '';
272 + }
273 + if ($key === '') {
274 + wp_send_json_error(array('message' => esc_html__('No API key entered or saved for this provider.', 'mxchat')));
275 + }
276 +
277 + // Lightest authenticated metadata call per provider — model-agnostic, no generation.
278 + $headers = array();
279 + switch ($provider) {
280 + case 'openai':
281 + $url = 'https://api.openai.com/v1/models';
282 + $headers = array('Authorization' => 'Bearer ' . $key);
283 + break;
284 + case 'xai':
285 + $url = 'https://api.x.ai/v1/models';
286 + $headers = array('Authorization' => 'Bearer ' . $key);
287 + break;
288 + case 'deepseek':
289 + $url = 'https://api.deepseek.com/models';
290 + $headers = array('Authorization' => 'Bearer ' . $key);
291 + break;
292 + case 'openrouter':
293 + // /auth/key validates the key itself (the public /models list does not).
294 + $url = 'https://openrouter.ai/api/v1/auth/key';
295 + $headers = array('Authorization' => 'Bearer ' . $key);
296 + break;
297 + case 'gemini':
298 + $url = add_query_arg(array('pageSize' => 1, 'key' => $key), 'https://generativelanguage.googleapis.com/v1beta/models');
299 + break;
300 + case 'claude':
301 + $url = 'https://api.anthropic.com/v1/models';
302 + $headers = array('x-api-key' => $key, 'anthropic-version' => '2023-06-01');
303 + break;
304 + default:
305 + wp_send_json_error(array('message' => esc_html__('Unknown provider.', 'mxchat')));
306 + }
307 +
308 + $response = wp_remote_get($url, array(
309 + 'headers' => $headers,
310 + 'timeout' => 10,
311 + ));
312 +
313 + if (is_wp_error($response)) {
314 + wp_send_json_error(array('message' => sprintf(esc_html__('Network error: %s', 'mxchat'), esc_html($response->get_error_message()))));
315 + }
316 +
317 + $code = (int) wp_remote_retrieve_response_code($response);
318 + if ($code >= 200 && $code < 300) {
319 + wp_send_json_success(array('message' => esc_html__('Key is valid.', 'mxchat')));
320 + }
321 +
322 + // Surface the provider's own error text when present (trimmed; key never echoed).
323 + $detail = '';
324 + $body = json_decode(wp_remote_retrieve_body($response), true);
325 + if (is_array($body)) {
326 + if (isset($body['error']['message'])) {
327 + $detail = $body['error']['message'];
328 + } elseif (isset($body['error']) && is_string($body['error'])) {
329 + $detail = $body['error'];
330 + } elseif (isset($body['message'])) {
331 + $detail = $body['message'];
332 + }
333 + }
334 + $detail = trim((string) $detail);
335 + if (strlen($detail) > 200) {
336 + $detail = substr($detail, 0, 200) . '…';
337 + }
338 +
339 + if ($code === 401 || $code === 403) {
340 + $msg = ($detail !== '')
341 + ? sprintf(esc_html__('Key rejected (HTTP %1$d): %2$s', 'mxchat'), $code, esc_html($detail))
342 + : sprintf(esc_html__('Key rejected (HTTP %d). Check the API key.', 'mxchat'), $code);
343 + wp_send_json_error(array('message' => $msg));
344 + }
345 +
346 + $msg = ($detail !== '')
347 + ? sprintf(esc_html__('Provider returned HTTP %1$d: %2$s', 'mxchat'), $code, esc_html($detail))
348 + : sprintf(esc_html__('Provider returned HTTP %d.', 'mxchat'), $code);
349 + wp_send_json_error(array('message' => $msg));
350 +}
351 +
129 352 // ========================================
130 353 // SETTINGS AJAX HANDLERS
131 354 // ========================================
132 355
@@ -140,10 +363,10 @@
140 363 wp_send_json_error(['message' => esc_html__('Unauthorized', 'mxchat')]);
141 364 }
142 365
143 366 $name = isset($_POST['name']) ? $_POST['name'] : '';
144 - // Strip slashes from the value before saving
145 - $value = isset($_POST['value']) ? stripslashes($_POST['value']) : '';
367 + // Remove WP's added slashes before saving (wp_unslash is the canonical form; plan-3f8158).
368 + $value = isset($_POST['value']) ? wp_unslash($_POST['value']) : '';
146 369
147 370 //error_log('MXChat Save: Processing field name: ' . $name);
148 371 //error_log('MXChat Save: Field value: ' . $value);
149 372
@@ -164,8 +387,113 @@
164 387 }
165 388
166 389 // Handle special cases
167 390 switch ($field_name) {
391 + // Editor Assistant enable toggle (plan-8cb0cb). STANDALONE option — NOT part
392 + // of mxchat_options, so it skips the mxchat_sanitize strip-trap entirely. Save
393 + // it directly and short-circuit (mirrors the mxchat_transcripts_options pattern
394 + // below); never falls through to the generic mxchat_options save. Default OFF.
395 + case 'mxchat_editor_assistant_enabled':
396 + $ea_value = ($value === 'on' || $value === '1') ? 'on' : 'off';
397 + update_option('mxchat_editor_assistant_enabled', $ea_value);
398 + wp_send_json_success(['message' => esc_html__('Setting saved', 'mxchat')]);
399 + return;
400 +
401 + // Smart asset loading toggle (plan-915355). STANDALONE option, same
402 + // reasoning as the Editor Assistant case above — saved directly and
403 + // short-circuited so it never touches mxchat_options / mxchat_sanitize.
404 + // Default OFF (opt-in performance optimization).
405 + case 'mxchat_smart_asset_loading':
406 + $sal_value = ($value === 'on' || $value === '1') ? 'on' : 'off';
407 + update_option('mxchat_smart_asset_loading', $sal_value);
408 + wp_send_json_success(['message' => esc_html__('Setting saved', 'mxchat')]);
409 + return;
410 +
411 + // Hybrid keyword boost toggle (plan-38ffa1). STANDALONE option, same
412 + // pattern. Enabling runs capability detection HERE, at admin-save time —
413 + // building the FULLTEXT index during a visitor's chat request is not
414 + // acceptable, and detection is a one-time cost the admin can wait on.
415 + case 'mxchat_hybrid_keyword_toggle':
416 + $hkb_value = ($value === 'on' || $value === '1') ? 'on' : 'off';
417 + update_option('mxchat_hybrid_keyword_toggle', $hkb_value);
418 + if ($hkb_value === 'on') {
419 + MxChat_Utils::mxchat_hybrid_detect_capability(true);
420 + }
421 + wp_send_json_success(['message' => esc_html__('Setting saved', 'mxchat')]);
422 + return;
423 +
424 + // ACF→PDF import-time extraction (plan 11720c). STANDALONE option, same
425 + // pattern. Moved from a per-import modal checkbox to an install-level
426 + // setting on Knowledge → ACF Fields. Stored '1'/'0' to match the
427 + // knowledge page's sibling toggles. Default OFF.
428 + case 'mxchat_acf_pdf_extraction':
429 + $apx_value = ($value === 'on' || $value === '1') ? '1' : '0';
430 + update_option('mxchat_acf_pdf_extraction', $apx_value);
431 + wp_send_json_success(['message' => esc_html__('Setting saved', 'mxchat')]);
432 + return;
433 +
434 + // In-chat YouTube card: master switch + its own confidence floor
435 + // (plan f52492). STANDALONE options, same pattern as the cases above.
436 + // Default ON — the card already ships, so this is an opt-OUT.
437 + case 'mxchat_video_embed_enabled':
438 + $vce_value = ($value === 'on' || $value === '1') ? 'on' : 'off';
439 + update_option('mxchat_video_embed_enabled', $vce_value);
440 + wp_send_json_success(['message' => esc_html__('Setting saved', 'mxchat')]);
441 + return;
442 +
443 + // Clamped to the same 20-95 the field advertises. An out-of-range or
444 + // non-numeric POST is corrected rather than refused, and the corrected
445 + // value is echoed back so the field can reconcile — a silently stored
446 + // 0 here would put a video on every answer, which is the bug.
447 + case 'mxchat_video_embed_threshold':
448 + $vct_value = is_numeric($value)
449 + ? (int) $value
450 + : MXCHAT_VIDEO_EMBED_THRESHOLD_DEFAULT;
451 + if ($vct_value < 20) { $vct_value = 20; }
452 + if ($vct_value > 95) { $vct_value = 95; }
453 + update_option('mxchat_video_embed_threshold', $vct_value);
454 + wp_send_json_success([
455 + 'message' => esc_html__('Setting saved', 'mxchat'),
456 + 'value' => $vct_value,
457 + ]);
458 + return;
459 +
460 + // Live-agent availability schedules (plans 8ccaa2 + 99d7a4). STANDALONE
461 + // options, same reasoning as the Editor Assistant case above — nested
462 + // structures that mxchat_sanitize() would strip on the next autosave of any
463 + // other field. Each channel's value arrives as JSON from its own hidden
464 + // input, which that channel's schedule editor keeps in sync; the class owns
465 + // all validation. The bare legacy name is kept as a defense against a
466 + // browser still running pre-split cached admin JS: that UI edited "both
467 + // channels" as one, so its save writes both.
468 + case 'live_agent_schedule_slack':
469 + case 'live_agent_schedule_telegram':
470 + case 'live_agent_schedule_webhook':
471 + case 'live_agent_schedule':
472 + if (!class_exists('MxChat_Live_Agent_Schedule')) {
473 + wp_send_json_error(['message' => esc_html__('Schedule unavailable', 'mxchat')]);
474 + return;
475 + }
476 + $decoded = json_decode($value, true);
477 + if (!is_array($decoded)) {
478 + wp_send_json_error(['message' => esc_html__('Invalid schedule', 'mxchat')]);
479 + return;
480 + }
481 + $channels = ($field_name === 'live_agent_schedule')
482 + ? array('slack', 'telegram')
483 + : array(substr($field_name, strlen('live_agent_schedule_')));
484 + $saved_schedule = null;
485 + foreach ($channels as $schedule_channel) {
486 + $saved_schedule = MxChat_Live_Agent_Schedule::save($schedule_channel, $decoded);
487 + }
488 + // Echo the normalized result so the editor can reconcile if it ever
489 + // disagrees with the server (e.g. a time the class rejected).
490 + wp_send_json_success([
491 + 'message' => esc_html__('Setting saved', 'mxchat'),
492 + 'schedule' => $saved_schedule,
493 + ]);
494 + return;
495 +
168 496 case 'model':
169 497 //error_log('MXChat Save: Processing model selection');
170 498 //error_log('MXChat Save: Model value received: ' . $value);
171 499 //error_log('MXChat Save: Value type: ' . gettype($value));
@@ -237,8 +565,15 @@
237 565 //error_log('MXChat Save: Processing email_blocker_header_content');
238 566 // Allow HTML content but sanitize it safely
239 567 $options[$field_name] = wp_kses_post($value);
240 568 break;
569 + case 'intro_message':
570 + // Stored-XSS hardening (Wordfence CWE-79, plan-3f8158): sanitize on save as
571 + // defense in depth. wp_kses_post mirrors mxchat_sanitize() (the options.php
572 + // save path) so both save routes treat intro_message identically and strip
573 + // <script>/</textarea> breakout while keeping basic formatting + {visitor_name}.
574 + $options[$field_name] = wp_kses_post($value);
575 + break;
241 576 case 'email_blocker_button_text':
242 577 //error_log('MXChat Save: Processing email_blocker_button_text');
243 578 $options[$field_name] = sanitize_text_field($value);
244 579 break;
@@ -245,8 +580,13 @@
245 580 case 'name_field_placeholder':
246 581 //error_log('MXChat Save: Processing name_field_placeholder');
247 582 $options[$field_name] = sanitize_text_field($value);
248 583 break;
584 + case 'consent_checkbox_label':
585 + // b062c4 — same allowlist as the options.php save path and the
586 + // widget render, so the stored label always equals the shown label.
587 + $options[$field_name] = MxChat_Utils::sanitize_consent_label($value);
588 + break;
249 589 case 'similarity_threshold':
250 590 //error_log('MXChat Save: Processing similarity_threshold');
251 591 // Validate and save - enforce min 20, max 85
252 592 $threshold = intval($value);
@@ -273,8 +613,49 @@
273 613 //error_log('MXChat Save: Processing live_agent_status');
274 614 // Set the new value
275 615 $options[$field_name] = ($value === 'on') ? 'on' : 'off';
276 616 break;
617 + // Shared handoff channel (plan 1a2666): re-probe the channel's privacy
618 + // at configuration time so the settings screen can warn about private
619 + // channels (their inbound events arrive as message.groups, which the
620 + // documented app setup never subscribes to). Only id-shaped values can
621 + // be checked before the first handoff resolves a #name — the handoff
622 + // path probes those when it caches the resolved id.
623 + case 'live_agent_shared_channel':
624 + $options[$field_name] = sanitize_text_field($value);
625 + delete_option('mxchat_slack_shared_channel_privacy');
626 + $shared_channel_target = ltrim(trim((string) $options[$field_name]), '#');
627 + if ($shared_channel_target !== '' && preg_match('/^[CG][A-Z0-9]{6,}$/', $shared_channel_target)) {
628 + if (!class_exists('MxChat_Integrator')) {
629 + require_once plugin_dir_path(dirname(__FILE__)) . 'includes/class-mxchat-integrator.php';
630 + }
631 + MxChat_Integrator::mxchat_probe_slack_channel_privacy(
632 + $options['live_agent_bot_token'] ?? '',
633 + $shared_channel_target,
634 + trim((string) $options[$field_name])
635 + );
636 + }
637 + break;
638 + // Webhook handoff destination (plan d88e22). Status normalized like the
639 + // other channel toggles; the URL is refused outright when it isn't
640 + // https so the admin hears about it at save time instead of the
641 + // handoff silently never firing.
642 + case 'webhook_handoff_status':
643 + $options[$field_name] = ($value === 'on') ? 'on' : 'off';
644 + break;
645 + case 'webhook_handoff_url':
646 + $wh_url = trim((string) $value);
647 + if ($wh_url === '') {
648 + $options[$field_name] = '';
649 + break;
650 + }
651 + $wh_clean = esc_url_raw($wh_url, array('https'));
652 + if ($wh_clean === '' || stripos($wh_clean, 'https://') !== 0) {
653 + wp_send_json_error(['message' => esc_html__('Webhook URL must start with https://', 'mxchat')]);
654 + return;
655 + }
656 + $options[$field_name] = $wh_clean;
657 + break;
277 658 case 'enable_web_search':
278 659 //error_log('MXChat Save: Processing enable_web_search');
279 660 $options[$field_name] = ($value === 'on') ? 'on' : 'off';
280 661 break;
@@ -322,9 +703,16 @@
322 703 $transcripts_options = array();
323 704 }
324 705
325 706 // Handle checkbox values (convert 'on'/'off' to 1/0)
326 - if ($value === 'on' || $value === '1') {
707 + if ($field_name === 'mxchat_retention_days') {
708 + // Number field, NOT a checkbox — without this branch a
709 + // value of '1' would hit the 'on'/'1' coercion below
710 + // (harmlessly) but nothing would clamp: this direct-DB
711 + // path bypasses the registered sanitiser and its
712 + // 0-3650 clamp entirely (plan-3c3338).
713 + $transcripts_options[$field_name] = max(0, min(3650, (int) $value));
714 + } else if ($value === 'on' || $value === '1') {
327 715 $transcripts_options[$field_name] = 1;
328 716 } else if ($value === 'off' || $value === '0' || $value === '') {
329 717 $transcripts_options[$field_name] = 0;
330 718 } else {
@@ -329,9 +717,20 @@
329 717 $transcripts_options[$field_name] = 0;
330 718 } else {
331 719 // For text/select fields, sanitize appropriately
332 720 if ($field_name === 'mxchat_notification_email') {
333 - $transcripts_options[$field_name] = sanitize_email($value);
721 + // sanitize_email() alone CANNOT validate this field: given
722 + // "[email protected], [email protected]" it returns the single concatenated
723 + // address "[email protected]", which is_email() then accepts.
724 + // That is how two addresses used to be stored as one dead
725 + // one, silently. MxChat_Utils validates the raw parts first
726 + // and refuses the whole list if any of them is bad.
727 + $parsed = MxChat_Utils::parse_notification_emails($value);
728 + if ($parsed['error'] !== '') {
729 + // Reject: the previously stored value stays untouched.
730 + wp_send_json_error(array('message' => $parsed['error']));
731 + }
732 + $transcripts_options[$field_name] = implode(', ', $parsed['emails']);
334 733 } else {
335 734 $transcripts_options[$field_name] = sanitize_text_field($value);
336 735 }
337 736 }
@@ -508,10 +907,14 @@
508 907 'contextual_awareness_toggle',
509 908 'citation_links_toggle',
510 909 'enable_email_block',
511 910 'enable_name_field',
911 + 'enable_consent_checkbox',
912 + 'consent_checkbox_required',
512 913 'custom_provider_for_embeddings',
513 - 'custom_provider_for_images'
914 + 'custom_provider_for_images',
915 + 'print_button_enabled',
916 + 'reset_chat_enabled'
514 917 ])) {
515 918 //error_log('MXChat Save: Processing toggle: ' . $field_name);
516 919 $options[$field_name] = ($value === 'on') ? 'on' : 'off';
517 920 } else {
@@ -654,8 +1057,42 @@
654 1057 if ($field_name === 'mxchat_pinecone_host') {
655 1058 $new_value = str_replace(['https://', 'http://'], '', $new_value);
656 1059 }
657 1060 break;
1061 + case 'mxchat_pinecone_index_type':
1062 + // 362c31: document only once the host has been checked (see sanitize_pinecone_settings).
1063 + $new_value = ($value === 'document') ? 'document' : 'vector';
1064 + if ($new_value === 'document' && strtolower(trim((string) ($current_options['mxchat_pinecone_host'] ?? ''), '/')) !== strtolower((string) ($current_options['mxchat_pinecone_docs_verified_host'] ?? ''))) {
1065 + wp_send_json_error(['message' => esc_html__('Check the document index host first (Check index or Create index for me).', 'mxchat')]);
1066 + }
1067 + // 3e83e4: same gate as the form save — no switch onto a half-copied index.
1068 + if ($new_value === 'document' && (($current_options['mxchat_pinecone_index_type'] ?? 'vector') !== 'document') && class_exists('MxChat_Pinecone_Documents')) {
1069 + $running = MxChat_Pinecone_Documents::migration_blocks_switch((string) ($current_options['mxchat_pinecone_host'] ?? ''));
1070 + if ($running !== null) {
1071 + wp_send_json_error(['message' => MxChat_Pinecone_Documents::switch_blocked_message($running)]);
1072 + }
1073 + }
1074 + break;
1075 + case 'mxchat_pinecone_vector_host':
1076 + $new_value = trim(str_replace(['https://', 'http://'], '', sanitize_text_field($value)), '/');
1077 + break;
1078 + case 'mxchat_pinecone_vector_index':
1079 + case 'mxchat_pinecone_docs_region':
1080 + $new_value = sanitize_text_field($value);
1081 + break;
1082 + case 'mxchat_pinecone_docs_cloud':
1083 + $new_value = in_array($value, array('aws', 'gcp', 'azure'), true) ? $value : 'aws';
1084 + break;
1085 + case 'mxchat_pinecone_docs_language':
1086 + $lang_value = sanitize_key($value);
1087 + $new_value = (class_exists('MxChat_Pinecone_Documents') && array_key_exists($lang_value, MxChat_Pinecone_Documents::languages())) ? $lang_value : 'en';
1088 + break;
1089 + case 'mxchat_pinecone_top_k':
1090 + // d0cae1: out-of-range and junk normalize to the default 50 —
1091 + // same clamp the read site applies.
1092 + $top_k = absint($value);
1093 + $new_value = (string) (($top_k >= 1 && $top_k <= 1000) ? $top_k : 50);
1094 + break;
658 1095 default:
659 1096 wp_send_json_error(['message' => esc_html__('Unknown Pinecone field', 'mxchat')]);
660 1097 }
661 1098
@@ -685,14 +1122,16 @@
685 1122 );
686 1123 //error_log('[MXCHAT-PROMPTS] Updated existing option, result: ' . ($save_result !== false ? 'SUCCESS' : 'FAILED'));
687 1124 } else {
688 1125 // Insert new option
1126 + // Credential option — must NOT autoload (holds the Pinecone secret;
1127 + // autoloaded rows are read into memory on every request).
689 1128 $save_result = $wpdb->insert(
690 1129 $wpdb->options,
691 1130 array(
692 1131 'option_name' => 'mxchat_pinecone_addon_options',
693 1132 'option_value' => $serialized_options,
694 - 'autoload' => 'yes'
1133 + 'autoload' => 'off'
695 1134 ),
696 1135 array('%s', '%s', '%s')
697 1136 );
698 1137 //error_log('[MXCHAT-PROMPTS] Inserted new option, result: ' . ($save_result !== false ? 'SUCCESS' : 'FAILED'));
@@ -810,10 +1249,18 @@
810 1249 }
811 1250
812 1251 // Handle ACF field exclusion toggles
813 1252 if (strpos($name, 'mxchat_acf_field_') === 0) {
814 - // Extract field name from the input name (e.g., mxchat_acf_field_private_notes -> private_notes)
815 - $field_name = str_replace('mxchat_acf_field_', '', $name);
1253 + // The identifier after the prefix is the ACF field KEY (unique per
1254 + // field), not the field name — names are shared across groups and
1255 + // collide (plan 30e81f). Reject anything that isn't key-shaped so a
1256 + // stale pre-3.2.20 page (or its exit beacon) posting a bare name
1257 + // can't write junk into the key-based list.
1258 + $field_key = str_replace('mxchat_acf_field_', '', $name);
1259 + if (!preg_match('/^field_[A-Za-z0-9_\-]+$/', $field_key)) {
1260 + wp_send_json_error(['message' => esc_html__('Invalid ACF field identifier', 'mxchat')]);
1261 + return;
1262 + }
816 1263 $is_enabled = ($value === 'on' || $value === '1');
817 1264
818 1265 // Get current excluded fields
819 1266 $excluded_fields = get_option('mxchat_acf_excluded_fields', array());
@@ -822,13 +1269,19 @@
822 1269 }
823 1270
824 1271 if ($is_enabled) {
825 1272 // Remove from exclusion list (field should be included)
826 - $excluded_fields = array_values(array_diff($excluded_fields, array($field_name)));
1273 + $excluded_fields = array_values(array_diff($excluded_fields, array($field_key)));
1274 + // Lazy legacy-name conversion: if this field's NAME is still
1275 + // stored (its group was inactive when the 30e81f migration
1276 + // ran), including this one field must not silently include
1277 + // its same-named twins — swap the name entry for the keys of
1278 + // every OTHER field currently wearing that name.
1279 + $excluded_fields = $this->mxchat_expand_legacy_acf_name_entry($excluded_fields, $field_key);
827 1280 } else {
828 1281 // Add to exclusion list (field should be excluded)
829 - if (!in_array($field_name, $excluded_fields)) {
830 - $excluded_fields[] = $field_name;
1282 + if (!in_array($field_key, $excluded_fields, true)) {
1283 + $excluded_fields[] = $field_key;
831 1284 }
832 1285 }
833 1286
834 1287 $updated = update_option('mxchat_acf_excluded_fields', $excluded_fields);
@@ -835,10 +1288,10 @@
835 1288
836 1289 if ($updated || true) { // Always report success since the state may already be correct
837 1290 wp_send_json_success([
838 1291 'message' => $is_enabled
839 - ? sprintf(esc_html__('Field "%s" will be included in imports', 'mxchat'), $field_name)
840 - : sprintf(esc_html__('Field "%s" will be excluded from imports', 'mxchat'), $field_name)
1292 + ? esc_html__('Field will be included in imports', 'mxchat')
1293 + : esc_html__('Field will be excluded from imports', 'mxchat')
841 1294 ]);
842 1295 } else {
843 1296 wp_send_json_error(['message' => esc_html__('Failed to save ACF field setting', 'mxchat')]);
844 1297 }
@@ -858,12 +1311,12 @@
858 1311 }
859 1312 return;
860 1313 }
861 1314
862 - // Handle other prompts options
1315 + // Handle other prompts options (autoload false — can hold the Pinecone secret)
863 1316 $options = get_option('mxchat_prompts_options', []);
864 1317 $options[$name] = $value;
865 - $updated = update_option('mxchat_prompts_options', $options);
1318 + $updated = update_option('mxchat_prompts_options', $options, false);
866 1319
867 1320 if ($updated) {
868 1321 wp_send_json_success(['message' => esc_html__('Setting saved', 'mxchat')]);
869 1322 } else {
@@ -870,10 +1323,130 @@
870 1323 wp_send_json_error(['message' => esc_html__('No changes detected', 'mxchat')]);
871 1324 }
872 1325 }
873 1326
1327 + /**
1328 + * If the field behind $included_key still has its NAME stored in the
1329 + * exclusion list (a legacy entry the 30e81f migration could not resolve
1330 + * because the group was inactive), replace that name with the keys of
1331 + * every OTHER current field wearing it. Including one field must never
1332 + * silently include its same-named twins — that would be the original
1333 + * collision bug in reverse, in the unsafe (privacy-losing) direction.
1334 + */
1335 + private function mxchat_expand_legacy_acf_name_entry($excluded_fields, $included_key) {
1336 + if (!function_exists('acf_get_field')) {
1337 + return $excluded_fields;
1338 + }
1339 + $field = acf_get_field($included_key);
1340 + if (!$field || empty($field['name'])) {
1341 + return $excluded_fields;
1342 + }
1343 + $field_name = $field['name'];
1344 + if (!in_array($field_name, $excluded_fields, true)) {
1345 + return $excluded_fields;
1346 + }
1347 + $excluded_fields = array_values(array_diff($excluded_fields, array($field_name)));
1348 + foreach ($this->mxchat_acf_keys_for_name($field_name) as $twin_key) {
1349 + if ($twin_key !== $included_key && !in_array($twin_key, $excluded_fields, true)) {
1350 + $excluded_fields[] = $twin_key;
1351 + }
1352 + }
1353 + return $excluded_fields;
1354 + }
874 1355
875 1356 /**
1357 + * Keys of every currently-registered top-level ACF field with this name.
1358 + */
1359 + private function mxchat_acf_keys_for_name($field_name) {
1360 + $keys = array();
1361 + if (!function_exists('acf_get_field_groups') || !function_exists('acf_get_fields')) {
1362 + return $keys;
1363 + }
1364 + foreach (acf_get_field_groups() as $group) {
1365 + $group_fields = acf_get_fields($group['key']);
1366 + if (empty($group_fields)) {
1367 + continue;
1368 + }
1369 + foreach ($group_fields as $field) {
1370 + if (isset($field['name'], $field['key']) && $field['name'] === $field_name) {
1371 + $keys[] = $field['key'];
1372 + }
1373 + }
1374 + }
1375 + return $keys;
1376 + }
1377 +
1378 + /**
1379 + * Group-level ACF toggle (plan bf57e0): sets every field in one ACF field
1380 + * group included or excluded in a SINGLE option write. The client must
1381 + * never loop the per-field endpoint for this — get_option → modify →
1382 + * update_option once per field from twenty concurrent requests is a
1383 + * lost-update race that silently drops most of the group.
1384 + */
1385 + public function mxchat_acf_toggle_group_callback() {
1386 + check_ajax_referer('mxchat_prompts_setting_nonce');
1387 +
1388 + if (!current_user_can('manage_options')) {
1389 + wp_send_json_error(['message' => esc_html__('Insufficient permissions', 'mxchat')], 403);
1390 + return;
1391 + }
1392 +
1393 + if (!function_exists('acf_get_fields')) {
1394 + wp_send_json_error(['message' => esc_html__('ACF is not active', 'mxchat')]);
1395 + return;
1396 + }
1397 +
1398 + $group_key = isset($_POST['group_key']) ? sanitize_text_field(wp_unslash($_POST['group_key'])) : '';
1399 + if (!preg_match('/^group_[A-Za-z0-9_\-]+$/', $group_key)) {
1400 + wp_send_json_error(['message' => esc_html__('Invalid ACF group identifier', 'mxchat')]);
1401 + return;
1402 + }
1403 + $state = isset($_POST['state']) ? sanitize_text_field(wp_unslash($_POST['state'])) : '';
1404 + $include = ($state === 'on' || $state === '1');
1405 +
1406 + // Resolve the group's fields SERVER-side — a client-supplied key list
1407 + // is not trusted. This is the same call the settings UI lists from,
1408 + // so the toggle covers exactly the rendered set (top-level fields).
1409 + $group_fields = acf_get_fields($group_key);
1410 + if (empty($group_fields)) {
1411 + wp_send_json_error(['message' => esc_html__('No fields found for this group', 'mxchat')]);
1412 + return;
1413 + }
1414 +
1415 + $excluded_fields = get_option('mxchat_acf_excluded_fields', array());
1416 + if (!is_array($excluded_fields)) {
1417 + $excluded_fields = array();
1418 + }
1419 +
1420 + $touched = array();
1421 + foreach ($group_fields as $field) {
1422 + if (empty($field['key'])) {
1423 + continue;
1424 + }
1425 + if ($include) {
1426 + $excluded_fields = array_values(array_diff($excluded_fields, array($field['key'])));
1427 + $excluded_fields = $this->mxchat_expand_legacy_acf_name_entry($excluded_fields, $field['key']);
1428 + } elseif (!in_array($field['key'], $excluded_fields, true)) {
1429 + $excluded_fields[] = $field['key'];
1430 + }
1431 + $touched[] = array(
1432 + 'name' => 'mxchat_acf_field_' . $field['key'],
1433 + 'value' => $include ? 'on' : 'off',
1434 + );
1435 + }
1436 +
1437 + // The one write — the whole point of this endpoint.
1438 + update_option('mxchat_acf_excluded_fields', array_values($excluded_fields));
1439 +
1440 + wp_send_json_success([
1441 + 'message' => $include
1442 + ? esc_html__('All fields in this group will be included in imports', 'mxchat')
1443 + : esc_html__('All fields in this group will be excluded from imports', 'mxchat'),
1444 + 'fields' => $touched,
1445 + ]);
1446 + }
1447 +
1448 + /**
876 1449 * Handles AJAX request for Pinecone settings migration
877 1450 */
878 1451 public function ajax_migrate_pinecone_settings() {
879 1452 // Verify nonce
@@ -909,9 +1482,9 @@
909 1482 'mxchat_pinecone_index' => sanitize_text_field($old_options['mxchat_pinecone_index'] ?? ''),
910 1483 'mxchat_pinecone_environment' => sanitize_text_field($old_options['mxchat_pinecone_environment'] ?? '')
911 1484 );
912 1485
913 - update_option('mxchat_pinecone_addon_options', $migrated_options);
1486 + update_option('mxchat_pinecone_addon_options', $migrated_options, false);
914 1487
915 1488 wp_send_json_success(array(
916 1489 'migrated' => true,
917 1490 'message' => 'Settings migrated successfully from Pinecone add-on'
@@ -1070,9 +1643,17 @@
1070 1643 //error_log('MxChat deactivate: Nonce check failed');
1071 1644 wp_send_json_error('Security check failed.');
1072 1645 return;
1073 1646 }
1074 -
1647 +
1648 + // plan-mxchat-20260731-c63fb6 — nonce is not authorization. Without this,
1649 + // any authenticated user holding the nonce could revoke the site's PRO
1650 + // licence. Every sibling handler in this file already checks.
1651 + if (!current_user_can('manage_options')) {
1652 + wp_send_json_error(esc_html__('Unauthorized', 'mxchat'), 403);
1653 + return;
1654 + }
1655 +
1075 1656 //error_log('MxChat deactivate: Nonce check passed');
1076 1657
1077 1658 $license_key = get_option('mxchat_activation_key');
1078 1659 $email = get_option('mxchat_pro_email');