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Vigilant – 100% Free Security Suite: Firewall, 2FA, Login, Headers, Scanner… / 2.11.12
Vigilant – 100% Free Security Suite: Firewall, 2FA, Login, Headers, Scanner… v2.11.12
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← All changes | includes/class-database.php +384 -36 2.9.82.11.12 View file →
@@ -11,10 +11,8 @@
11 11 if ( ! defined( 'ABSPATH' ) ) {
12 12 exit;
13 13 }
14 14
15 -// phpcs:disable WordPress.DB.PreparedSQL.NotPrepared, WordPress.DB.PreparedSQL.InterpolatedNotPrepared, WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, PluginCheck.Security.DirectDB.UnescapedDBParameter -- All queries use $wpdb->prepare() with validated parameters
16 -
17 15 /**
18 16 * Class Vigilante_Database
19 17 *
20 18 * Manages custom database tables
@@ -31,8 +29,18 @@
31 29 */
32 30 const DB_VERSION_OPTION = 'vigilante_db_version';
33 31
34 32 /**
33 + * Records that the destructive part of the 2.11.0 migration already ran.
34 + *
35 + * A marker of its own, not a point on the version chain, because what it
36 + * governs deletes rows. See purge_for_2_11_0().
37 + *
38 + * @since 2.11.4
39 + */
40 + const PURGE_2_11_0_OPTION = 'vigilante_purge_2_11_0_done';
41 +
42 + /**
35 43 * Activity log table name (without prefix)
36 44 *
37 45 * @var string
38 46 */
@@ -105,18 +113,8 @@
105 113 return $this->wpdb->prefix . $table;
106 114 }
107 115
108 116 /**
109 - * Get escaped table name for use in SQL queries
110 - *
111 - * @param string $table Full table name.
112 - * @return string Escaped table name with backticks.
113 - */
114 - private function esc_table( $table ) {
115 - return '`' . esc_sql( $table ) . '`';
116 - }
117 -
118 - /**
119 117 * Get activity log table name
120 118 *
121 119 * @return string
122 120 */
@@ -264,9 +262,9 @@
264 262 // 2FA Codes table
265 263 $two_factor_codes_sql = "CREATE TABLE {$this->get_2fa_codes_table()} (
266 264 id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
267 265 user_id bigint(20) unsigned NOT NULL,
268 - code varchar(6) NOT NULL,
266 + code varchar(64) NOT NULL,
269 267 created_at datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
270 268 expires_at datetime NOT NULL,
271 269 attempts int(11) unsigned DEFAULT 0,
272 270 used tinyint(1) DEFAULT 0,
@@ -319,15 +317,49 @@
319 317 ) $charset_collate;";
320 318
321 319 dbDelta( $two_factor_totp_sql );
322 320
323 - // Store database version
324 - update_option( self::DB_VERSION_OPTION, self::DB_VERSION );
321 + $this->store_schema_version();
325 322
326 323 return $result;
327 324 }
328 325
329 326 /**
327 + * Write the schema version, but never walk the stored value backwards
328 + *
329 + * vigilante_db_version is written on two different scales into the same
330 + * option: this class counts in schema versions, currently 1.4.0, and
331 + * Vigilante_Admin::run_migrations() counts in plugin versions, currently
332 + * 2.11.0. For version_compare, 1.4.0 is LOWER than 1.14.0, so a site whose
333 + * option was last written here reads as being behind almost every step of
334 + * that chain and runs them all again.
335 + *
336 + * That was not a corner case. create_tables() is called unconditionally by
337 + * the activator, so deactivating and reactivating the plugin on a perfectly
338 + * up-to-date site sent it back to 1.4.0 and replayed eleven migrations,
339 + * among them the one that empties the trusted devices and the pending
340 + * second-factor codes. Every user of that site had to pass the second
341 + * factor again, for no reason, every single time somebody toggled the
342 + * plugin. Reported by @calzbert, who worked it out from the code after the
343 + * 1.4.0 reading turned up on a site here.
344 + *
345 + * Refusing to go backwards fixes that without touching the two scales,
346 + * which is a separate job. A brand new site still starts here, with no
347 + * option at all, and that is correct: it has never run the chain.
348 + *
349 + * @since 2.11.4
350 + *
351 + * @return void
352 + */
353 + private function store_schema_version() {
354 + $stored = get_option( self::DB_VERSION_OPTION, '0' );
355 +
356 + if ( version_compare( $stored, self::DB_VERSION, '<' ) ) {
357 + update_option( self::DB_VERSION_OPTION, self::DB_VERSION );
358 + }
359 + }
360 +
361 + /**
330 362 * Check if tables need to be updated
331 363 *
332 364 * @return bool True if update needed.
333 365 */
@@ -344,13 +376,13 @@
344 376 public function run_migrations() {
345 377 $current_version = get_option( self::DB_VERSION_OPTION, '0' );
346 378
347 379 // v1.3.0: Add request_method column to activity log
380 + // phpcs:disable WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.PreparedSQL.NotPrepared -- %i placeholder requires WP 6.2+, and the sniff reports inside the multiline prepare().
348 381 if ( version_compare( $current_version, '1.3.0', '<' ) ) {
349 382 $table = $this->get_activity_log_table();
350 383
351 384 // Check if column already exists
352 - // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
353 385 $column_exists = $this->wpdb->get_results(
354 386 $this->wpdb->prepare(
355 387 'SHOW COLUMNS FROM %i LIKE %s',
356 388 $table,
@@ -358,9 +390,8 @@
358 390 )
359 391 );
360 392
361 393 if ( empty( $column_exists ) ) {
362 - // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.PreparedSQL.NotPrepared
363 394 $this->wpdb->query(
364 395 $this->wpdb->prepare(
365 396 'ALTER TABLE %i ADD COLUMN request_method varchar(10) DEFAULT %s AFTER user_agent',
366 397 $table,
@@ -368,9 +399,8 @@
368 399 )
369 400 );
370 401
371 402 // Add index
372 - // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.PreparedSQL.NotPrepared
373 403 $this->wpdb->query(
374 404 $this->wpdb->prepare(
375 405 'ALTER TABLE %i ADD KEY request_method (request_method)',
376 406 $table
@@ -377,14 +407,77 @@
377 407 )
378 408 );
379 409 }
380 410 }
411 + // phpcs:enable WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.PreparedSQL.NotPrepared
381 412
382 - // Update stored version
383 - update_option( self::DB_VERSION_OPTION, self::DB_VERSION );
413 + $this->store_schema_version();
384 414 }
385 415
386 416 /**
417 + * Schema changes and purges of the 2.11.0 security release
418 + *
419 + * Called from the 2.11.0 block of Vigilante_Admin::run_migrations(), not
420 + * from needs_update(): the vigilante_db_version option is shared with that
421 + * chain and on any updated site it already holds a plugin version (2.9.9 or
422 + * later), so a bump of DB_VERSION would never fire. create_tables() widens
423 + * the code column on its own through dbDelta; this method does what dbDelta
424 + * cannot, which is deleting rows.
425 + *
426 + * - Trusted devices identified a browser by its User-Agent (S1). If the old
427 + * rows survived, the bypass would survive with them.
428 + * - Email codes were stored in clear (S11). They are compared against a
429 + * hash from now on, so any pending code would fail; they expire in
430 + * minutes and a new one is a click away.
431 + *
432 + * @since 2.11.0
433 + *
434 + * @return bool True when it ran, false when it had already run.
435 + */
436 + public function purge_for_2_11_0() {
437 + /*
438 + * Its own one-off marker, and not a point on the version chain.
439 + *
440 + * This deletes rows, and it hung off a version comparison that could
441 + * walk backwards, so every reactivation replayed it. store_schema_version()
442 + * closes that particular door, but the lesson is more general than the
443 + * door: a migration that deletes rows should not depend on a version
444 + * number staying where it was put.
445 + *
446 + * Both the marker and the tables are per site (get_table_name() builds
447 + * on $wpdb->prefix), so the pair travels together and there is no case
448 + * where one site's marker stops another site's purge. A subsite created
449 + * after a network-wide activation is NOT covered by this marker, and
450 + * does not need to be: it has no marker, so it purges, and what it
451 + * purges are its own tables, created empty moments earlier.
452 + *
453 + * Marked AFTER the deletes, unlike the network sweep of the baselines,
454 + * and the asymmetry is deliberate. There, repeating the walk is
455 + * expensive and not finishing it costs only time. Here, repeating the
456 + * deletes costs one more prompt for the second factor, while not doing
457 + * them at all would leave the trusted devices that were identified by
458 + * User-Agent in place, which is the bypass this purge exists to close.
459 + * When in doubt, repeat the harmless one. Marker added in 2.11.4.
460 + */
461 + if ( get_option( self::PURGE_2_11_0_OPTION ) ) {
462 + return false;
463 + }
464 +
465 + // phpcs:disable WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.PreparedSQL.NotPrepared -- %i placeholder requires WP 6.2+, and the sniff reports inside prepare(). Plugin tables, no cache to invalidate.
466 + $this->wpdb->query(
467 + $this->wpdb->prepare( 'DELETE FROM %i', $this->get_2fa_devices_table() )
468 + );
469 + $this->wpdb->query(
470 + $this->wpdb->prepare( 'DELETE FROM %i', $this->get_2fa_codes_table() )
471 + );
472 + // phpcs:enable WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.PreparedSQL.NotPrepared
473 +
474 + update_option( self::PURGE_2_11_0_OPTION, '1', false );
475 +
476 + return true;
477 + }
478 +
479 + /**
387 480 * Drop all plugin tables
388 481 *
389 482 * @return bool
390 483 */
@@ -402,13 +495,14 @@
402 495
403 496 foreach ( $tables as $table ) {
404 497 $this->wpdb->query( $this->wpdb->prepare( 'DROP TABLE IF EXISTS %i', $table ) ); // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared, WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.DirectDatabaseQuery.SchemaChange, PluginCheck.Security.DirectDB.UnescapedDBParameter
405 498 }
499 + // phpcs:enable WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.DirectDatabaseQuery.SchemaChange
406 500
407 501 delete_option( self::DB_VERSION_OPTION );
502 + delete_option( self::PURGE_2_11_0_OPTION );
408 503
409 504 return true;
410 - // phpcs:enable
411 505 }
412 506
413 507 // =========================================================================
414 508 // ACTIVITY LOG METHODS
@@ -636,18 +730,35 @@
636 730 $ip_address = sanitize_text_field( $ip_address );
637 731 $username = sanitize_user( $username );
638 732 $status = sanitize_key( $status );
639 733 $user_agent = isset( $_SERVER['HTTP_USER_AGENT'] ) ? sanitize_text_field( wp_unslash( $_SERVER['HTTP_USER_AGENT'] ) ) : '';
640 - $now = current_time( 'mysql' );
641 734
735 + /*
736 + * UTC, like every other timestamp this table is compared against.
737 + * Until 2.11.0 last_attempt was written in the site's local time while
738 + * get_failed_attempt_count() compared it against a UTC window and
739 + * set_lockout() wrote lockout_until in UTC, so the login lockout only
740 + * worked on sites whose timezone is UTC: with a positive offset the
741 + * lockout was never seen as active, with a negative one the attempts
742 + * were never counted (S18, found on 5 Sep 2026 while testing S8).
743 + */
744 + $now = current_time( 'mysql', true );
745 +
642 746 // Check if record exists for this IP + username
643 747 // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
644 748 $existing = $this->wpdb->get_row( $this->wpdb->prepare( 'SELECT * FROM %i WHERE ip_address = %s AND username = %s', $table, $ip_address, $username ), ARRAY_A );
645 749
646 750 if ( $existing ) {
751 + // An active lockout keeps its status: recording a failure on top
752 + // of it used to flip the row back to 'failed', so the lockout
753 + // vanished from is_locked_out() the moment anyone tried again (S8).
754 + $locked = 'lockout' === $existing['status']
755 + && ! empty( $existing['lockout_until'] )
756 + && $existing['lockout_until'] > $now;
757 +
647 758 // Update existing record
648 759 $data = array(
649 - 'status' => $status,
760 + 'status' => $locked ? 'lockout' : $status,
650 761 'attempt_count' => $existing['attempt_count'] + 1,
651 762 'last_attempt' => $now,
652 763 'user_agent' => $user_agent,
653 764 );
@@ -742,9 +853,10 @@
742 853 * @return array|false Lockout data or false if not locked.
743 854 */
744 855 public function is_locked_out( $ip_address ) {
745 856 $table = $this->get_login_attempts_table();
746 - $now = current_time( 'mysql' );
857 + // UTC: lockout_until is written with gmdate(). See record_login_attempt() (S18).
858 + $now = current_time( 'mysql', true );
747 859
748 860 // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
749 861 $lockout = $this->wpdb->get_row( $this->wpdb->prepare( "SELECT * FROM %i WHERE ip_address = %s AND lockout_until > %s AND status = 'lockout' ORDER BY lockout_until DESC LIMIT 1", $table, $ip_address, $now ), ARRAY_A );
750 862
@@ -770,9 +882,10 @@
770 882 * @return array List of locked IPs with their data.
771 883 */
772 884 public function get_active_lockouts() {
773 885 $table = $this->get_login_attempts_table();
774 - $now = current_time( 'mysql' );
886 + // UTC: lockout_until is written with gmdate(). See record_login_attempt() (S18).
887 + $now = current_time( 'mysql', true );
775 888
776 889 // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
777 890 $lockouts = $this->wpdb->get_results( $this->wpdb->prepare( "SELECT ip_address, username, attempt_count as attempts, lockout_until as locked_until, last_attempt FROM %i WHERE lockout_until > %s AND status = 'lockout' ORDER BY lockout_until DESC", $table, $now ) );
778 891
@@ -817,10 +930,11 @@
817 930 public function cleanup_old_login_attempts( $hours = 24 ) {
818 931 $table = $this->get_login_attempts_table();
819 932 $date = gmdate( 'Y-m-d H:i:s', strtotime( "-{$hours} hours" ) );
820 933
934 + // UTC on both sides, like the rest of this table since 2.11.0 (S18).
821 935 // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
822 - $deleted = $this->wpdb->query( $this->wpdb->prepare( 'DELETE FROM %i WHERE last_attempt < %s AND (lockout_until IS NULL OR lockout_until < %s)', $table, $date, current_time( 'mysql' ) ) );
936 + $deleted = $this->wpdb->query( $this->wpdb->prepare( 'DELETE FROM %i WHERE last_attempt < %s AND (lockout_until IS NULL OR lockout_until < %s)', $table, $date, current_time( 'mysql', true ) ) );
823 937
824 938 return $deleted ? $deleted : 0;
825 939 }
826 940
@@ -830,9 +944,10 @@
830 944 * @return array
831 945 */
832 946 public function get_locked_out_ips() {
833 947 $table = $this->get_login_attempts_table();
834 - $now = current_time( 'mysql' );
948 + // UTC: lockout_until is written with gmdate(). See record_login_attempt() (S18).
949 + $now = current_time( 'mysql', true );
835 950
836 951 // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
837 952 $results = $this->wpdb->get_results( $this->wpdb->prepare( "SELECT DISTINCT ip_address, lockout_until, attempt_count, last_attempt FROM %i WHERE lockout_until > %s AND status = 'lockout' ORDER BY lockout_until DESC", $table, $now ), ARRAY_A );
838 953
@@ -1061,10 +1176,15 @@
1061 1176 'code' => $code,
1062 1177 'expires_at' => $expires_at,
1063 1178 'attempts' => 0,
1064 1179 'used' => 0,
1180 + // In UTC, like expires_at. Left to the column default it was the
1181 + // MySQL server's local time, and the resend limit compares it with
1182 + // time(): on servers behind UTC it never held, and ahead of UTC it
1183 + // refused a legitimate resend for hours (rule 19, 2.11.8).
1184 + 'created_at' => current_time( 'mysql', true ),
1065 1185 ),
1066 - array( '%d', '%s', '%s', '%d', '%d' )
1186 + array( '%d', '%s', '%s', '%d', '%d', '%s' )
1067 1187 );
1068 1188
1069 1189 return $result ? $this->wpdb->insert_id : false;
1070 1190 }
@@ -1373,13 +1493,152 @@
1373 1493 * @param int $user_id User ID.
1374 1494 * @return array|null
1375 1495 */
1376 1496 public function get_totp_data( $user_id ) {
1377 - $table = $this->get_totp_table();
1497 + return $this->get_totp_row( $this->totp_table_for_user( $user_id ), $user_id );
1498 + }
1378 1499
1500 + /**
1501 + * The TOTP table that holds this account's enrolment
1502 + *
1503 + * On a network the enrolment has to be visible wherever the login arrives.
1504 + * This table carries the blog prefix, so an account enrolled on the main site
1505 + * had no row on a subsite: the "not set up yet" branch of
1506 + * check_2fa_requirement() let the login through and even wrote a grace
1507 + * placeholder there, and the cookie that came out was valid across the whole
1508 + * network.
1509 + *
1510 + * Every read AND every write goes through here, which is the part the first
1511 + * attempt got wrong: falling back only on the read meant verify_backup_code()
1512 + * found the code on the main site and then wrote the shortened list to the
1513 + * local table, where there is no row. wpdb::update() touches nothing, returns
1514 + * 0, and the caller reads that as success, so a single-use backup code stayed
1515 + * usable for ever. Found by the cross review of 2.11.10.
1516 + *
1517 + * A configured local row always wins, so an enrolment made on a subsite is
1518 + * never lost or overwritten.
1519 + *
1520 + * The search does not stop at the main site, and that is the second
1521 + * correction: looking only local then main left an account enrolled on one
1522 + * subsite reading as "not set up yet" from the main site and from every
1523 + * other subsite, which is the very branch that lets the login through. It
1524 + * did not show while the email class was registering on every network and
1525 + * catching those logins, and it would have become a live bypass the moment
1526 + * that was put right, which is exactly what this release also does. The two
1527 + * were found together by the second cross review of 2.11.10 and are fixed
1528 + * together on purpose: fixing one alone opens the other.
1529 + *
1530 + * @since 2.11.10
1531 + *
1532 + * @param int $user_id User ID.
1533 + * @return string Table name.
1534 + */
1535 + private function totp_table_for_user( $user_id ) {
1536 + $local = $this->get_totp_table();
1537 +
1538 + if ( ! is_multisite() ) {
1539 + return $local;
1540 + }
1541 +
1542 + $row = $this->get_totp_row( $local, $user_id );
1543 +
1544 + if ( $row && ! empty( $row['is_configured'] ) ) {
1545 + return $local;
1546 + }
1547 +
1548 + /*
1549 + * Where the enrolment is, asked of the account itself. User meta is
1550 + * network-global, so this one row answers from any site of the network,
1551 + * whatever its size and whoever the account is.
1552 + */
1553 + $marked = (int) get_user_meta( $user_id, 'vigilante_totp_site', true );
1554 +
1555 + if ( $marked > 0 ) {
1556 + $table = $this->wpdb->get_blog_prefix( $marked ) . $this->two_factor_totp_table;
1557 + $candidate = ( $table === $local ) ? $row : $this->get_totp_row( $table, $user_id );
1558 +
1559 + if ( $candidate && ! empty( $candidate['is_configured'] ) ) {
1560 + return $table;
1561 + }
1562 + }
1563 +
1564 + /*
1565 + * No marker: an enrolment made before this version, or one whose site is
1566 + * gone. Searched once, the old way, and written down when found so the
1567 + * search never happens again for this account.
1568 + */
1569 + foreach ( $this->totp_legacy_blog_ids( $user_id ) as $blog_id ) {
1570 + $table = $this->wpdb->get_blog_prefix( $blog_id ) . $this->two_factor_totp_table;
1571 +
1572 + if ( $table === $local ) {
1573 + continue;
1574 + }
1575 +
1576 + $candidate = $this->get_totp_row( $table, $user_id );
1577 +
1578 + if ( $candidate && ! empty( $candidate['is_configured'] ) ) {
1579 + $this->remember_totp_site( $user_id, (int) $blog_id );
1580 + return $table;
1581 + }
1582 + }
1583 +
1584 + return $local;
1585 + }
1586 +
1587 + /**
1588 + * Where an enrolment made before the marker existed could live
1589 + *
1590 + * Only for accounts with no vigilante_totp_site meta yet, and only until the
1591 + * first time one is found, because finding it writes the marker. The main
1592 + * site first, since that is where a network that configures two factor once
1593 + * sets it up, then the sites the account belongs to, then the rest of the
1594 + * network for a super administrator, who is asked for a second factor by
1595 + * every site and is a member of almost none.
1596 + *
1597 + * @since 2.11.10
1598 + *
1599 + * @param int $user_id User ID.
1600 + * @return int[] Blog IDs.
1601 + */
1602 + private function totp_legacy_blog_ids( $user_id ) {
1603 + $ids = array( (int) get_main_site_id() );
1604 +
1605 + foreach ( get_blogs_of_user( $user_id ) as $blog ) {
1606 + $ids[] = (int) $blog->userblog_id;
1607 + }
1608 +
1609 + if ( is_super_admin( $user_id ) ) {
1610 + foreach ( get_sites( array( 'fields' => 'ids', 'number' => 200 ) ) as $blog_id ) {
1611 + $ids[] = (int) $blog_id;
1612 + }
1613 + }
1614 +
1615 + return array_values( array_unique( $ids ) );
1616 + }
1617 +
1618 + /**
1619 + * One TOTP row from a given table
1620 + *
1621 + * @since 2.11.10
1622 + *
1623 + * @param string $table Table name.
1624 + * @param int $user_id User ID.
1625 + * @return array|null
1626 + */
1627 + private function get_totp_row( $table, $user_id ) {
1628 + /*
1629 + * The table asked for may not exist: on a network Vigilant can have been
1630 + * activated on some sites and not on others, and this is called with the
1631 + * candidate tables of every site the account belongs to. Asking for a
1632 + * table that is not there would print a database error on the login
1633 + * page, so errors are silenced for the duration and a missing table
1634 + * reads as what it means, no enrolment there.
1635 + */
1636 + $suppress = $this->wpdb->suppress_errors( true );
1637 +
1379 1638 // phpcs:disable WordPress.DB.PreparedSQL.NotPrepared -- %i placeholder requires WP 6.2+.
1380 1639 // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
1381 - return $this->wpdb->get_row(
1640 + $row = $this->wpdb->get_row(
1382 1641 $this->wpdb->prepare(
1383 1642 'SELECT * FROM %i WHERE user_id = %d LIMIT 1',
1384 1643 $table,
1385 1644 $user_id
@@ -1386,8 +1645,12 @@
1386 1645 ),
1387 1646 ARRAY_A
1388 1647 );
1389 1648 // phpcs:enable WordPress.DB.PreparedSQL.NotPrepared
1649 +
1650 + $this->wpdb->suppress_errors( $suppress );
1651 +
1652 + return $row;
1390 1653 }
1391 1654
1392 1655 /**
1393 1656 * Create TOTP placeholder row (grace period tracking)
@@ -1396,9 +1659,9 @@
1396 1659 * @param string $grace_expires Grace period expiry datetime.
1397 1660 * @return bool
1398 1661 */
1399 1662 public function create_totp_placeholder( $user_id, $grace_expires ) {
1400 - $table = $this->get_totp_table();
1663 + $table = $this->totp_table_for_user( $user_id );
1401 1664
1402 1665 // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery
1403 1666 return false !== $this->wpdb->replace(
1404 1667 $table,
@@ -1419,13 +1682,13 @@
1419 1682 * @param string $encrypted Encrypted secret.
1420 1683 * @return bool
1421 1684 */
1422 1685 public function save_totp_data( $user_id, $encrypted ) {
1423 - $table = $this->get_totp_table();
1686 + $table = $this->totp_table_for_user( $user_id );
1424 1687 $now = current_time( 'mysql', true );
1425 1688
1426 1689 // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery
1427 - return false !== $this->wpdb->replace(
1690 + $saved = false !== $this->wpdb->replace(
1428 1691 $table,
1429 1692 array(
1430 1693 'user_id' => $user_id,
1431 1694 'secret' => $encrypted,
@@ -1434,11 +1697,92 @@
1434 1697 'grace_period_expires' => null,
1435 1698 ),
1436 1699 array( '%d', '%s', '%d', '%s', '%s' )
1437 1700 );
1701 +
1702 + if ( $saved ) {
1703 + $this->remember_totp_site( $user_id, $this->blog_id_of_totp_table( $table ) );
1704 + }
1705 +
1706 + return $saved;
1438 1707 }
1439 1708
1440 1709 /**
1710 + * Whether this account has an enrolment anywhere in the network
1711 + *
1712 + * With the account's vigilante_totp_site marker in place this is one or two
1713 + * queries: the local table, and the one the marker points at. Without it,
1714 + * which is every account with no enrolment at all, totp_table_for_user() goes
1715 + * on to search the main site, the account's own sites and, for a super
1716 + * administrator, up to 200 more, and it does so every time, because the
1717 + * marker is only written once an enrolment is found. It runs at login and,
1718 + * since 2.11.10, from the dashboard hooks of the TOTP class too; that is why
1719 + * those ask for the election before reading the row (2.11.11).
1720 + *
1721 + * @since 2.11.10
1722 + *
1723 + * @param int $user_id User ID.
1724 + * @return bool
1725 + */
1726 + public function has_totp_enrolment( $user_id ) {
1727 + $row = $this->get_totp_data( $user_id );
1728 +
1729 + return ( $row && ! empty( $row['is_configured'] ) );
1730 + }
1731 +
1732 + /**
1733 + * The blog a TOTP table belongs to
1734 + *
1735 + * @since 2.11.10
1736 + *
1737 + * @param string $table Table name.
1738 + * @return int Blog ID, 0 when it cannot be told.
1739 + */
1740 + private function blog_id_of_totp_table( $table ) {
1741 + if ( ! is_multisite() ) {
1742 + return 0;
1743 + }
1744 +
1745 + $base = $this->wpdb->base_prefix . $this->two_factor_totp_table;
1746 +
1747 + if ( $table === $base ) {
1748 + return (int) get_main_site_id();
1749 + }
1750 +
1751 + if ( 1 === preg_match( '/^' . preg_quote( $this->wpdb->base_prefix, '/' ) . '(\d+)_' . preg_quote( $this->two_factor_totp_table, '/' ) . '$/', $table, $m ) ) {
1752 + return (int) $m[1];
1753 + }
1754 +
1755 + return 0;
1756 + }
1757 +
1758 + /**
1759 + * Write down which site holds this account's enrolment
1760 + *
1761 + * User meta is network-global, so one row says where the enrolment is from
1762 + * anywhere. That is what makes the lookup exact instead of a search: the
1763 + * first version walked the main site plus the account's own sites, capped at
1764 + * 25, and any enrolment outside that set read as "not set up yet", which is
1765 + * the branch that lets the login through. The third cross review of 2.11.10
1766 + * measured all three ways out of it: a network with more sites than the cap,
1767 + * an enrolment on a site the account was later removed from, and a super
1768 + * administrator, who is asked for a second factor by every site of the
1769 + * network and is a member of almost none.
1770 + *
1771 + * @since 2.11.10
1772 + *
1773 + * @param int $user_id User ID.
1774 + * @param int $blog_id Blog the enrolment was written to.
1775 + */
1776 + private function remember_totp_site( $user_id, $blog_id ) {
1777 + if ( ! is_multisite() || $blog_id < 1 ) {
1778 + return;
1779 + }
1780 +
1781 + update_user_meta( $user_id, 'vigilante_totp_site', (int) $blog_id );
1782 + }
1783 +
1784 + /**
1441 1785 * Store backup codes for a user
1442 1786 *
1443 1787 * @param int $user_id User ID.
1444 1788 * @param string $hashed_codes JSON-encoded hashed codes.
@@ -1444,9 +1788,9 @@
1444 1788 * @param string $hashed_codes JSON-encoded hashed codes.
1445 1789 * @return bool
1446 1790 */
1447 1791 public function store_totp_backup_codes( $user_id, $hashed_codes ) {
1448 - $table = $this->get_totp_table();
1792 + $table = $this->totp_table_for_user( $user_id );
1449 1793
1450 1794 // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
1451 1795 return false !== $this->wpdb->update(
1452 1796 $table,
@@ -1463,9 +1807,9 @@
1463 1807 * @param int $user_id User ID.
1464 1808 * @return bool
1465 1809 */
1466 1810 public function update_totp_last_used( $user_id ) {
1467 - $table = $this->get_totp_table();
1811 + $table = $this->totp_table_for_user( $user_id );
1468 1812 $now = current_time( 'mysql', true );
1469 1813
1470 1814 // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
1471 1815 return false !== $this->wpdb->update(
@@ -1483,9 +1827,13 @@
1483 1827 * @param int $user_id User ID.
1484 1828 * @return bool
1485 1829 */
1486 1830 public function reset_totp_data( $user_id ) {
1487 - $table = $this->get_totp_table();
1831 + $table = $this->totp_table_for_user( $user_id );
1832 +
1833 + // The marker goes with the row it points at, or the next login would look
1834 + // for an enrolment that is no longer there.
1835 + delete_user_meta( $user_id, 'vigilante_totp_site' );
1488 1836
1489 1837 // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
1490 1838 return false !== $this->wpdb->delete(
1491 1839 $table,