| 1 |
<?php |
| 2 |
/** |
| 3 |
* Error classification, infrastructure error handling, missing-table repair, |
| 4 |
* and prefix mismatch diagnostics for DataAccess. |
| 5 |
* |
| 6 |
* Extracted from DataAccess.php to keep the main class under the file-size limit. |
| 7 |
* All methods are called via $this-> from DataAccess (trait context). |
| 8 |
* |
| 9 |
* @since 4.1.0 |
| 10 |
*/ |
| 11 |
|
| 12 |
if (!defined('ABSPATH')) { |
| 13 |
exit; |
| 14 |
} |
| 15 |
|
| 16 |
trait ABJ_404_Solution_DataAccess_ErrorClassificationTrait { |
| 17 |
|
| 18 |
/** |
| 19 |
* Determine whether an error indicates invalid text/charset payload. |
| 20 |
* |
| 21 |
* @param string $errorText |
| 22 |
* @return bool |
| 23 |
*/ |
| 24 |
private function isInvalidDataError($errorText) { |
| 25 |
if (!is_string($errorText) || $errorText === '') { |
| 26 |
return false; |
| 27 |
} |
| 28 |
$lower = strtolower($errorText); |
| 29 |
return ( |
| 30 |
$this->f->strpos($lower, 'contains invalid data') !== false || |
| 31 |
$this->f->strpos($lower, 'incorrect string value') !== false || |
| 32 |
$this->f->strpos($lower, 'invalid utf8') !== false |
| 33 |
); |
| 34 |
} |
| 35 |
|
| 36 |
/** |
| 37 |
* Classify a $wpdb->last_error as an infrastructure issue (disk full, read-only, etc.). |
| 38 |
* If it IS an infrastructure error: logs WARN and calls noteDatabaseIssueFromError(). |
| 39 |
* If it is NOT: returns false (caller is responsible for logging at ERROR level). |
| 40 |
* |
| 41 |
* Use this at call sites that bypass queryAndGetResults() and call $wpdb directly. |
| 42 |
* Public so that NGramFilter, DatabaseUpgradesEtc, and other classes can call it |
| 43 |
* via $this->dao->classifyAndHandleInfrastructureError(). |
| 44 |
* |
| 45 |
* @param string $errorText The value of $wpdb->last_error. |
| 46 |
* @return bool True if the error was classified as infrastructure (already handled). |
| 47 |
*/ |
| 48 |
public function classifyAndHandleInfrastructureError(string $errorText): bool { |
| 49 |
if ($errorText === '') { |
| 50 |
return false; |
| 51 |
} |
| 52 |
|
| 53 |
if ($this->isDiskFullError($errorText) || |
| 54 |
$this->isReadOnlyError($errorText) || |
| 55 |
$this->isQuotaLimitError($errorText) || |
| 56 |
$this->isInvalidDataError($errorText) || |
| 57 |
$this->isCollationError($errorText) || |
| 58 |
$this->isMissingPluginTableError($errorText) || |
| 59 |
$this->isIncorrectKeyFileError($errorText) || |
| 60 |
$this->isCrashedTableError($errorText) || |
| 61 |
$this->isDeadlockOrLockTimeoutError($errorText) || |
| 62 |
$this->isTransientConnectionError($errorText) |
| 63 |
) { |
| 64 |
$this->logger->warn("Server-side DB issue (handled): " . $errorText); |
| 65 |
$this->noteDatabaseIssueFromError($errorText); |
| 66 |
return true; |
| 67 |
} |
| 68 |
|
| 69 |
return false; |
| 70 |
} |
| 71 |
|
| 72 |
/** @param string|null $errorText @return bool */ |
| 73 |
private function isTransientConnectionError(?string $errorText): bool { |
| 74 |
$errorText = $errorText ?? ''; |
| 75 |
if ($errorText === '') { |
| 76 |
return false; |
| 77 |
} |
| 78 |
$lower = strtolower($errorText); |
| 79 |
$transientMarkers = array( |
| 80 |
'server has gone away', |
| 81 |
'lost connection to mysql server during query', |
| 82 |
'error while sending query packet', |
| 83 |
'packets out of order', |
| 84 |
'connection was killed', |
| 85 |
); |
| 86 |
foreach ($transientMarkers as $marker) { |
| 87 |
if ($this->f->strpos($lower, $marker) !== false) { |
| 88 |
return true; |
| 89 |
} |
| 90 |
} |
| 91 |
return false; |
| 92 |
} |
| 93 |
|
| 94 |
/** @param string $errorText @return bool */ |
| 95 |
private function isQuotaLimitError(string $errorText): bool { |
| 96 |
if (!is_string($errorText) || $errorText === '') { |
| 97 |
return false; |
| 98 |
} |
| 99 |
$lower = strtolower($errorText); |
| 100 |
return ($this->f->strpos($lower, 'max_questions') !== false || |
| 101 |
$this->f->strpos($lower, 'resource') !== false && $this->f->strpos($lower, 'question') !== false); |
| 102 |
} |
| 103 |
|
| 104 |
/** @param string $errorText @return bool */ |
| 105 |
private function isDiskFullError(string $errorText): bool { |
| 106 |
if (!is_string($errorText) || $errorText === '') { |
| 107 |
return false; |
| 108 |
} |
| 109 |
$lower = strtolower($errorText); |
| 110 |
// "Got error 28 from storage engine" (ER_GET_ERRNO with POSIX ENOSPC) |
| 111 |
// "errno: 28" / "Errcode: 28" (ER_DISK_FULL, ER_ERROR_ON_WRITE) |
| 112 |
// "No space left on device" (OS strerror for ENOSPC, English only) |
| 113 |
// "The table '...' is full" (ER_RECORD_FILE_FULL / error 1114) |
| 114 |
// "Disk full" (ER_DISK_FULL) |
| 115 |
// Note: on servers with non-English lc_messages, the text around "28" |
| 116 |
// may be translated (e.g. "erreur 28" in French), but the numeric 28 |
| 117 |
// always appears. The strpos checks cover all known English MySQL/MariaDB |
| 118 |
// message formats; non-English servers are rare in WordPress hosting. |
| 119 |
return ($this->f->strpos($lower, 'error 28') !== false || |
| 120 |
$this->f->strpos($lower, 'errno: 28') !== false || |
| 121 |
$this->f->strpos($lower, 'errcode: 28') !== false || |
| 122 |
$this->f->strpos($lower, 'no space left on device') !== false || |
| 123 |
$this->f->strpos($lower, "' is full") !== false || |
| 124 |
$this->f->strpos($lower, 'table is full') !== false || |
| 125 |
$this->f->strpos($lower, 'disk full') !== false); |
| 126 |
} |
| 127 |
|
| 128 |
/** @param string $errorText @return bool */ |
| 129 |
private function isReadOnlyError(string $errorText): bool { |
| 130 |
if (!is_string($errorText) || $errorText === '') { |
| 131 |
return false; |
| 132 |
} |
| 133 |
$lower = strtolower($errorText); |
| 134 |
return ($this->f->strpos($lower, 'read only') !== false || |
| 135 |
$this->f->strpos($lower, 'read-only') !== false || |
| 136 |
$this->f->strpos($lower, 'super_read_only') !== false); |
| 137 |
} |
| 138 |
|
| 139 |
/** @param string $errorText @return bool */ |
| 140 |
private function isCollationError(string $errorText): bool { |
| 141 |
if (!is_string($errorText) || $errorText === '') { |
| 142 |
return false; |
| 143 |
} |
| 144 |
$lower = strtolower($errorText); |
| 145 |
return ($this->f->strpos($lower, 'illegal mix of collations') !== false || |
| 146 |
$this->f->strpos($lower, 'unknown collation') !== false || |
| 147 |
$this->f->strpos($lower, 'collation') !== false && $this->f->strpos($lower, 'not valid') !== false); |
| 148 |
} |
| 149 |
|
| 150 |
/** @param string $errorText @return bool */ |
| 151 |
private function isCrashedTableError(string $errorText): bool { |
| 152 |
if (!is_string($errorText) || $errorText === '') { |
| 153 |
return false; |
| 154 |
} |
| 155 |
return stripos($errorText, 'is marked as crashed') !== false; |
| 156 |
} |
| 157 |
|
| 158 |
/** @param string $errorText @return bool */ |
| 159 |
private function isIncorrectKeyFileError(string $errorText): bool { |
| 160 |
if (!is_string($errorText) || $errorText === '') { |
| 161 |
return false; |
| 162 |
} |
| 163 |
return stripos($errorText, 'Incorrect key file') !== false; |
| 164 |
} |
| 165 |
|
| 166 |
/** Detect MySQL MAX_EXECUTION_TIME (errno 3024) and MariaDB max_statement_time (errno 1969) timeouts. |
| 167 |
* @param string $errorText @return bool */ |
| 168 |
private function isQueryTimeoutError(string $errorText): bool { |
| 169 |
if (!is_string($errorText) || $errorText === '') { |
| 170 |
return false; |
| 171 |
} |
| 172 |
return (strpos($errorText, '3024') !== false || |
| 173 |
strpos($errorText, '1969') !== false || |
| 174 |
stripos($errorText, 'max_execution_time') !== false || |
| 175 |
stripos($errorText, 'max_statement_time') !== false); |
| 176 |
} |
| 177 |
|
| 178 |
/** @param string $errorText @return bool */ |
| 179 |
private function isDeadlockOrLockTimeoutError(string $errorText): bool { |
| 180 |
if (!is_string($errorText) || $errorText === '') { |
| 181 |
return false; |
| 182 |
} |
| 183 |
$lower = strtolower($errorText); |
| 184 |
return ($this->f->strpos($lower, 'deadlock found') !== false || |
| 185 |
$this->f->strpos($lower, 'lock wait timeout exceeded') !== false || |
| 186 |
$this->f->strpos($lower, 'error 1213') !== false || |
| 187 |
$this->f->strpos($lower, 'error 1205') !== false); |
| 188 |
} |
| 189 |
|
| 190 |
/** |
| 191 |
* Extract a table name from a MySQL "table is full" error message. |
| 192 |
* MySQL formats this as: The table 'table_name' is full |
| 193 |
* @param string $errorText |
| 194 |
* @return string|null The table name, or null if not parseable. |
| 195 |
*/ |
| 196 |
private function extractTableNameFromFullError(string $errorText): ?string { |
| 197 |
if (preg_match("/table '([^']+)' is full/i", $errorText, $m)) { |
| 198 |
return $m[1]; |
| 199 |
} |
| 200 |
return null; |
| 201 |
} |
| 202 |
|
| 203 |
/** |
| 204 |
* Check if a given table uses the InnoDB storage engine. |
| 205 |
* Returns false on any query failure (safe default). |
| 206 |
* @param string $tableName |
| 207 |
* @return bool |
| 208 |
*/ |
| 209 |
private function isInnoDBTable(string $tableName): bool { |
| 210 |
global $wpdb; |
| 211 |
/** @var wpdb $wpdb */ |
| 212 |
if (!method_exists($wpdb, 'get_var') || !method_exists($wpdb, 'prepare')) { |
| 213 |
return false; // Safe default when $wpdb is a partial stub |
| 214 |
} |
| 215 |
if (defined('DB_NAME')) { |
| 216 |
$dbName = (string)DB_NAME; |
| 217 |
} else { |
| 218 |
// Per-request warn once: silent empty-string fallback hides |
| 219 |
// whether the schema-probe is actually working in tests that |
| 220 |
// forget to define DB_NAME (Smell 1 from error-swallow audit). |
| 221 |
static $warnedNoDbName = false; |
| 222 |
if (!$warnedNoDbName) { |
| 223 |
$warnedNoDbName = true; |
| 224 |
$this->logger->warn(__METHOD__ . ': DB_NAME undefined; using empty schema in InnoDB probe'); |
| 225 |
} |
| 226 |
$dbName = ''; |
| 227 |
} |
| 228 |
$engine = $wpdb->get_var( |
| 229 |
$wpdb->prepare( |
| 230 |
"SELECT ENGINE FROM information_schema.TABLES WHERE TABLE_SCHEMA = %s AND TABLE_NAME = %s", |
| 231 |
$dbName, |
| 232 |
$tableName |
| 233 |
) |
| 234 |
); |
| 235 |
return is_string($engine) && strtolower($engine) === 'innodb'; |
| 236 |
} |
| 237 |
|
| 238 |
private function noteDatabaseIssueFromError(string $errorText): void { |
| 239 |
if (!is_string($errorText) || trim($errorText) === '') { |
| 240 |
return; |
| 241 |
} |
| 242 |
if ($this->isDiskFullError($errorText)) { |
| 243 |
$this->serverSideIssueNoted = true; |
| 244 |
$this->setRuntimeFlag('abj404_db_disk_full_until', $this->clock()->now() + self::DB_WRITE_BLOCK_COOLDOWN_SECONDS, self::DB_WRITE_BLOCK_COOLDOWN_SECONDS); |
| 245 |
|
| 246 |
// Disambiguate InnoDB tablespace exhaustion from actual disk full or MyISAM limit. |
| 247 |
// "table is full" for InnoDB means the shared tablespace (ibdata1) is at capacity — |
| 248 |
// trimming plugin rows will NOT free space; the host must expand the tablespace. |
| 249 |
$tableFull = stripos($errorText, 'table') !== false && stripos($errorText, 'is full') !== false; |
| 250 |
if ($tableFull) { |
| 251 |
$tableName = $this->extractTableNameFromFullError($errorText); |
| 252 |
if ($tableName !== null && $this->isInnoDBTable($tableName)) { |
| 253 |
$this->setPluginDbNotice('disk_full', $this->localizeOrDefault('The InnoDB tablespace appears to be exhausted. Deleting plugin data will NOT free this space. Contact your hosting provider to expand the InnoDB tablespace (ibdata1).'), $errorText); |
| 254 |
return; |
| 255 |
} |
| 256 |
} |
| 257 |
|
| 258 |
$this->setPluginDbNotice('disk_full', $this->localizeOrDefault('Database storage appears full (disk/engine space). Plugin write-heavy tasks are temporarily paused.'), $errorText); |
| 259 |
return; |
| 260 |
} |
| 261 |
if ($this->isQuotaLimitError($errorText)) { |
| 262 |
$this->serverSideIssueNoted = true; |
| 263 |
$this->setRuntimeFlag('abj404_db_quota_cooldown_until', $this->clock()->now() + self::DB_QUOTA_COOLDOWN_SECONDS, self::DB_QUOTA_COOLDOWN_SECONDS); |
| 264 |
$this->setPluginDbNotice('query_quota', $this->localizeOrDefault('Database query quota was exceeded (for example max_questions). Non-essential plugin background tasks are temporarily paused.'), $errorText); |
| 265 |
return; |
| 266 |
} |
| 267 |
if ($this->isReadOnlyError($errorText)) { |
| 268 |
$this->serverSideIssueNoted = true; |
| 269 |
$this->setRuntimeFlag('abj404_db_read_only_until', $this->clock()->now() + self::DB_WRITE_BLOCK_COOLDOWN_SECONDS, self::DB_WRITE_BLOCK_COOLDOWN_SECONDS); |
| 270 |
$this->setPluginDbNotice('read_only', $this->localizeOrDefault('Database appears to be in read-only mode. Plugin write operations are temporarily paused.'), $errorText); |
| 271 |
return; |
| 272 |
} |
| 273 |
if ($this->isCollationError($errorText)) { |
| 274 |
// Per owner directive: collation issues must NEVER surface as user notices. |
| 275 |
// The plugin auto-recovers by running correctCollations() at query time |
| 276 |
// (see DataAccess::recoverFromCollationMismatchAndRetry()). Here we only |
| 277 |
// log the original error at debug level so developers can see it in |
| 278 |
// debug.txt without the user ever being notified. |
| 279 |
$this->logger->debugMessage("Collation mismatch detected (auto-recovery will run): " . $errorText); |
| 280 |
} |
| 281 |
} |
| 282 |
|
| 283 |
/** @return bool */ |
| 284 |
private function isQuotaCooldownActive(): bool { |
| 285 |
$rawQuotaFlag = $this->getRuntimeFlag('abj404_db_quota_cooldown_until'); |
| 286 |
$until = is_scalar($rawQuotaFlag) ? (int)$rawQuotaFlag : 0; |
| 287 |
return ($until > $this->clock()->now()); |
| 288 |
} |
| 289 |
|
| 290 |
/** @param string $errorText @return bool */ |
| 291 |
private function isMissingPluginTableError(string $errorText): bool { |
| 292 |
if (!is_string($errorText) || $errorText === '') { |
| 293 |
return false; |
| 294 |
} |
| 295 |
$lower = strtolower($errorText); |
| 296 |
if ($this->f->strpos($lower, '_abj404_logs_hits') !== false) { |
| 297 |
return false; |
| 298 |
} |
| 299 |
return ($this->f->strpos($lower, "doesn't exist") !== false && |
| 300 |
$this->f->strpos($lower, '_abj404_') !== false); |
| 301 |
} |
| 302 |
|
| 303 |
/** |
| 304 |
* Attempt one auto-repair pass for missing plugin tables, then retry query once. |
| 305 |
* |
| 306 |
* @param string $query |
| 307 |
* @param array<string, mixed> $result |
| 308 |
* @return void |
| 309 |
*/ |
| 310 |
private function attemptMissingTableRepairAndRetry($query, &$result) { |
| 311 |
if (self::$tableRepairInProgress) { |
| 312 |
return; |
| 313 |
} |
| 314 |
|
| 315 |
// Rate-limit repeated failures: after a failed repair, downgrade subsequent |
| 316 |
// occurrences to WARNING for 1 hour so cron-per-run error storms don't |
| 317 |
// generate email reports. The first failure still logs ERROR and attempts repair. |
| 318 |
// 1 hour (not 24h) — a transient race during the repair (e.g. concurrent wp-cron |
| 319 |
// firing) can cause one failure that would clear by the next page load. A 24h |
| 320 |
// lockout permanently disables self-healing for the rest of the admin session. |
| 321 |
$repairCooldownKey = 'abj404_missing_table_repair_cooldown'; |
| 322 |
$cooldownTtlSeconds = 3600; |
| 323 |
$cooldownUntil = $this->getRuntimeFlag($repairCooldownKey); |
| 324 |
if (is_scalar($cooldownUntil) && (int)$cooldownUntil > $this->clock()->now()) { |
| 325 |
$this->logger->warn("Missing plugin table (repair previously failed, cooldown active): " |
| 326 |
. $result['last_error']); |
| 327 |
// Clear last_error so the caller (queryAndGetResults) does not |
| 328 |
// double-report this error as "Ugh. SQL query error" ERROR. |
| 329 |
$result['last_error'] = ''; |
| 330 |
return; |
| 331 |
} |
| 332 |
|
| 333 |
// During upgrades and nightly maintenance, createDatabaseTables() runs |
| 334 |
// proactively before any queries. If we reach this point, a plugin table |
| 335 |
// went missing during normal usage. Log as INFO while we attempt repair; |
| 336 |
// only escalate to ERROR if repair fails (avoids flooding admin with |
| 337 |
// error emails for transient issues that auto-repair resolves). |
| 338 |
$originalSqlError = is_string($result['last_error']) ? $result['last_error'] : ''; |
| 339 |
$missingTable = $this->extractMissingTableNameFromError($originalSqlError); |
| 340 |
$this->logger->infoMessage("Missing plugin table detected during query. " |
| 341 |
. "Attempting auto-repair. SQL error: " . $originalSqlError); |
| 342 |
|
| 343 |
self::$tableRepairInProgress = true; |
| 344 |
try { |
| 345 |
$upgrades = abj_service('database_upgrades'); |
| 346 |
// Pass $force = true so the repair bypasses the concurrency lock — if another |
| 347 |
// request holds the lock (e.g. a concurrent upgrade), calling createDatabaseTables |
| 348 |
// without $force would silently return without creating anything, leaving the |
| 349 |
// missing table unrepaired. Concurrent CREATE TABLE IF NOT EXISTS calls are safe |
| 350 |
// (idempotent), so bypassing the lock here is correct. |
| 351 |
$upgrades->createDatabaseTables(false, true); |
| 352 |
|
| 353 |
global $wpdb; |
| 354 |
$wpdb->flush(); |
| 355 |
|
| 356 |
// Suppress WP's own error output for the retry — if it also fails, we |
| 357 |
// report it ourselves below. Without this, WP logs a second |
| 358 |
// "WordPress database error" entry on top of the first, producing |
| 359 |
// duplicate noise in debug.log for every failed cron run. |
| 360 |
$prevSuppressState = $wpdb->suppress_errors(true); |
| 361 |
$result['rows'] = $wpdb->get_results($query, $this->currentResultType); |
| 362 |
$wpdb->suppress_errors($prevSuppressState); |
| 363 |
$this->harvestWpdbResult($result); |
| 364 |
|
| 365 |
if ($result['last_error'] === '') { |
| 366 |
$this->logger->infoMessage("Missing-table auto-repair succeeded."); |
| 367 |
// Clear any active cooldown — repair is now working. |
| 368 |
if (function_exists('delete_transient')) { |
| 369 |
delete_transient($repairCooldownKey); |
| 370 |
} elseif (function_exists('delete_option')) { |
| 371 |
delete_option($repairCooldownKey); |
| 372 |
} |
| 373 |
// If a stale missing_table notice exists from an earlier failed |
| 374 |
// repair attempt, clear it immediately now that repair succeeded. |
| 375 |
$this->clearPluginDbNoticeIfType('missing_table'); |
| 376 |
} else { |
| 377 |
// Check for prefix mismatch: plugin tables may exist under a |
| 378 |
// different $table_prefix than the current $wpdb->prefix (common |
| 379 |
// after site migrations or hosting panel clones). |
| 380 |
$prefixDiag = $this->diagnosePrefixMismatch(); |
| 381 |
|
| 382 |
// Multisite cross-prefix: a query referenced another subsite's table. |
| 383 |
// The plugin correctly created tables for the current site, but cannot |
| 384 |
// fix another subsite's missing tables from this request context. |
| 385 |
// That subsite will get its tables when its own cron fires. |
| 386 |
if ($this->isMultisiteCrossPrefixError($originalSqlError)) { |
| 387 |
$this->logger->warn("Multisite cross-prefix table reference (not actionable from this site). " |
| 388 |
. "Current prefix: " . ($wpdb->prefix ?? '') |
| 389 |
. ", Original error: " . $originalSqlError . $prefixDiag); |
| 390 |
// Clear last_error so queryAndGetResults() does not double-report. |
| 391 |
$result['last_error'] = ''; |
| 392 |
return; |
| 393 |
} |
| 394 |
|
| 395 |
// Repair failed — now escalate to ERROR so it triggers email notification. |
| 396 |
// Include the specific table that failed plus an explicit post-CREATE |
| 397 |
// existence check so the debug log distinguishes "CREATE didn't materialize |
| 398 |
// the table" (concurrency race, swallowed SQL error in queryAndGetResults, |
| 399 |
// insufficient privileges) from other retry-failure modes. |
| 400 |
$tableStillMissing = ($missingTable !== '' && !$this->tableExists($missingTable)); |
| 401 |
$tableContext = ($missingTable !== '') |
| 402 |
? " Table: " . $missingTable . "." |
| 403 |
: ''; |
| 404 |
$existenceContext = $tableStillMissing |
| 405 |
? ' Table is still missing after CREATE TABLE ran — ' |
| 406 |
. 'createDatabaseTables() did not materialize this table ' |
| 407 |
. '(likely a concurrent DROP, swallowed SQL error in queryAndGetResults, ' |
| 408 |
. 'or insufficient CREATE TABLE privileges).' |
| 409 |
: ''; |
| 410 |
$this->logger->errorMessage("Missing plugin table auto-repair failed." |
| 411 |
. $tableContext |
| 412 |
. $existenceContext |
| 413 |
. " Original error: " . $originalSqlError |
| 414 |
. ", Retry error: " . $result['last_error'] |
| 415 |
. $prefixDiag); |
| 416 |
// Engage 1h cooldown and surface a single admin notice on |
| 417 |
// the plugin screen so the admin knows to investigate. |
| 418 |
// Never email; never show on all wp-admin pages. |
| 419 |
$this->setRuntimeFlag($repairCooldownKey, $this->clock()->now() + $cooldownTtlSeconds, $cooldownTtlSeconds); |
| 420 |
$tableLabel = ($missingTable !== '') ? "'" . $missingTable . "' " : ''; |
| 421 |
$adminMsg = 'A plugin database table ' . $tableLabel |
| 422 |
. 'is missing and could not be repaired automatically. ' |
| 423 |
. 'Try deactivating and reactivating 404 Solution, or verify that your database user has CREATE TABLE privileges.'; |
| 424 |
if ($prefixDiag !== '') { |
| 425 |
$adminMsg .= ' ' . $prefixDiag; |
| 426 |
} |
| 427 |
$noticePayload = array( |
| 428 |
'type' => 'missing_table', |
| 429 |
'message' => $this->localizeOrDefault($adminMsg), |
| 430 |
'timestamp' => $this->clock()->now(), |
| 431 |
'error_string' => $result['last_error'], |
| 432 |
); |
| 433 |
$this->setRuntimeFlag('abj404_plugin_db_notice', $noticePayload, 86400); |
| 434 |
} |
| 435 |
} catch (Throwable $e) { |
| 436 |
$this->logger->warn("Missing-table auto-repair failed: " . $e->getMessage()); |
| 437 |
$this->setRuntimeFlag($repairCooldownKey, $this->clock()->now() + $cooldownTtlSeconds, $cooldownTtlSeconds); |
| 438 |
} finally { |
| 439 |
self::$tableRepairInProgress = false; |
| 440 |
} |
| 441 |
} |
| 442 |
|
| 443 |
/** |
| 444 |
* Extract the unprefixed-by-database table name from a MySQL "doesn't exist" |
| 445 |
* error message. Returns the bare table name (e.g. "wp_abj404_redirects") |
| 446 |
* or empty string if the error format does not match. |
| 447 |
* |
| 448 |
* MySQL emits errors as either: |
| 449 |
* Table 'dbname.tablename' doesn't exist |
| 450 |
* Table 'tablename' doesn't exist |
| 451 |
* The database-name segment is stripped because callers want the live |
| 452 |
* table name suitable for SHOW TABLES LIKE. |
| 453 |
* |
| 454 |
* @param string $errorText |
| 455 |
* @return string |
| 456 |
*/ |
| 457 |
private function extractMissingTableNameFromError(string $errorText): string { |
| 458 |
if ($errorText === '') { |
| 459 |
return ''; |
| 460 |
} |
| 461 |
if (!preg_match("/Table '([^']+)' doesn't exist/i", $errorText, $matches)) { |
| 462 |
return ''; |
| 463 |
} |
| 464 |
$fullName = $matches[1]; |
| 465 |
$dotPos = strrpos($fullName, '.'); |
| 466 |
return $dotPos !== false ? substr($fullName, $dotPos + 1) : $fullName; |
| 467 |
} |
| 468 |
|
| 469 |
/** |
| 470 |
* Check whether plugin tables exist under a different prefix than $wpdb->prefix. |
| 471 |
* |
| 472 |
* After site migrations or hosting panel clones, $table_prefix in wp-config.php |
| 473 |
* may differ from the prefix used when the plugin tables were originally created. |
| 474 |
* Returns a diagnostic string if a mismatch is detected, empty string otherwise. |
| 475 |
* |
| 476 |
* @return string Diagnostic message or empty string. |
| 477 |
*/ |
| 478 |
private function diagnosePrefixMismatch(): string { |
| 479 |
global $wpdb; |
| 480 |
try { |
| 481 |
$dbName = $wpdb->dbname ?? ''; |
| 482 |
if ($dbName === '') { |
| 483 |
return ''; |
| 484 |
} |
| 485 |
// @utf8-audit: opt-out — $wpdb->dbname is set by WordPress at |
| 486 |
// bootstrap from wp-config.php; never user input. |
| 487 |
$dbNameEscaped = esc_sql($dbName); |
| 488 |
$dbNameStr = is_array($dbNameEscaped) ? '' : $dbNameEscaped; |
| 489 |
// Find any table containing 'abj404_redirects' in this database. |
| 490 |
$rows = $wpdb->get_results( |
| 491 |
"SELECT table_name FROM information_schema.tables " |
| 492 |
. "WHERE table_schema = '{$dbNameStr}' " |
| 493 |
. "AND LOWER(table_name) LIKE '%abj404\_redirects'", |
| 494 |
ARRAY_A |
| 495 |
); |
| 496 |
if (!is_array($rows) || empty($rows)) { |
| 497 |
return ''; |
| 498 |
} |
| 499 |
$expectedTable = $this->getLowercasePrefix() . 'abj404_redirects'; |
| 500 |
$foundTables = []; |
| 501 |
foreach ($rows as $row) { |
| 502 |
// Case-insensitive key lookup (MySQL driver inconsistency). |
| 503 |
$name = null; |
| 504 |
foreach ($row as $key => $value) { |
| 505 |
if (strtolower((string)$key) === 'table_name') { |
| 506 |
$name = (string)$value; |
| 507 |
break; |
| 508 |
} |
| 509 |
} |
| 510 |
if ($name !== null) { |
| 511 |
$foundTables[] = $name; |
| 512 |
} |
| 513 |
} |
| 514 |
// Filter out the table we're already looking for. |
| 515 |
$mismatched = array_filter($foundTables, function ($t) use ($expectedTable) { |
| 516 |
return strtolower($t) !== strtolower($expectedTable); |
| 517 |
}); |
| 518 |
if (empty($mismatched)) { |
| 519 |
return ''; |
| 520 |
} |
| 521 |
$msg = ', PREFIX MISMATCH DETECTED: $wpdb->prefix is "' . ($wpdb->prefix ?? '') |
| 522 |
. '" (expected table: ' . $expectedTable . ') but plugin tables exist as: ' |
| 523 |
. implode(', ', $mismatched) . '.'; |
| 524 |
if (function_exists('is_multisite') && is_multisite()) { |
| 525 |
$msg .= ' This is a multisite installation — the other prefixes likely belong to other subsites (normal).'; |
| 526 |
} else { |
| 527 |
$msg .= ' Check $table_prefix in wp-config.php.'; |
| 528 |
} |
| 529 |
return $msg; |
| 530 |
} catch (Throwable $e) { |
| 531 |
return ''; |
| 532 |
} |
| 533 |
} |
| 534 |
|
| 535 |
/** |
| 536 |
* Detect whether a missing-table error references a different multisite subsite's prefix. |
| 537 |
* |
| 538 |
* On network-activated multisite, wp-cron can fire queries that reference tables |
| 539 |
* from a different subsite's prefix (e.g. wp_4_abj404_* while current prefix is wp_). |
| 540 |
* This is not an error — the other subsite's tables exist under its own prefix and |
| 541 |
* will be serviced when that subsite's cron fires. |
| 542 |
* |
| 543 |
* @param string $errorText The MySQL error string. |
| 544 |
* @return bool True if the error references a different multisite subsite's prefix. |
| 545 |
*/ |
| 546 |
private function isMultisiteCrossPrefixError(string $errorText): bool { |
| 547 |
if ($errorText === '' || !function_exists('is_multisite') || !is_multisite()) { |
| 548 |
return false; |
| 549 |
} |
| 550 |
|
| 551 |
global $wpdb; |
| 552 |
// Extract table name from error. MySQL formats: |
| 553 |
// Table 'dbname.tablename' doesn't exist |
| 554 |
// Table `dbname`.`tablename` doesn't exist |
| 555 |
if (!preg_match("/['\x60](?:[^'\x60]+\.)?([^'\x60]*abj404_[^'\x60]+)['\x60]/i", $errorText, $matches)) { |
| 556 |
return false; |
| 557 |
} |
| 558 |
$referencedTable = strtolower($matches[1]); |
| 559 |
|
| 560 |
$currentPrefix = strtolower($wpdb->prefix ?? 'wp_'); |
| 561 |
$basePrefix = strtolower($wpdb->base_prefix ?? 'wp_'); |
| 562 |
|
| 563 |
// If the table starts with the current prefix, it's genuinely missing for THIS site. |
| 564 |
if (strpos($referencedTable, $currentPrefix . 'abj404_') === 0) { |
| 565 |
return false; |
| 566 |
} |
| 567 |
|
| 568 |
// Check if it matches {base_prefix}{N}_abj404_ (a different subsite's table). |
| 569 |
$pattern = '/^' . preg_quote($basePrefix, '/') . '(\d+)_abj404_/'; |
| 570 |
if (preg_match($pattern, $referencedTable)) { |
| 571 |
return true; |
| 572 |
} |
| 573 |
|
| 574 |
return false; |
| 575 |
} |
| 576 |
} |
| 577 |
|
