SimpleMachines /
SMF2.1
| @@ 454-498 (lines=45) @@ | ||
| 451 | } |
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| 452 | ||
| 453 | // First, we clean strings out of the query, reduce whitespace, lowercase, and trim - so we can check it over. |
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| 454 | if (empty($modSettings['disableQueryCheck'])) |
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| 455 | { |
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| 456 | $clean = ''; |
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| 457 | $old_pos = 0; |
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| 458 | $pos = -1; |
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| 459 | while (true) |
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| 460 | { |
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| 461 | $pos = strpos($db_string, '\'', $pos + 1); |
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| 462 | if ($pos === false) |
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| 463 | break; |
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| 464 | $clean .= substr($db_string, $old_pos, $pos - $old_pos); |
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| 465 | ||
| 466 | while (true) |
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| 467 | { |
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| 468 | $pos1 = strpos($db_string, '\'', $pos + 1); |
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| 469 | $pos2 = strpos($db_string, '\\', $pos + 1); |
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| 470 | if ($pos1 === false) |
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| 471 | break; |
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| 472 | elseif ($pos2 === false || $pos2 > $pos1) |
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| 473 | { |
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| 474 | $pos = $pos1; |
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| 475 | break; |
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| 476 | } |
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| 477 | ||
| 478 | $pos = $pos2 + 1; |
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| 479 | } |
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| 480 | $clean .= ' %s '; |
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| 481 | ||
| 482 | $old_pos = $pos + 1; |
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| 483 | } |
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| 484 | $clean .= substr($db_string, $old_pos); |
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| 485 | $clean = trim(strtolower(preg_replace($allowed_comments_from, $allowed_comments_to, $clean))); |
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| 486 | ||
| 487 | // Comments? We don't use comments in our queries, we leave 'em outside! |
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| 488 | if (strpos($clean, '/*') > 2 || strpos($clean, '--') !== false || strpos($clean, ';') !== false) |
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| 489 | $fail = true; |
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| 490 | // Trying to change passwords, slow us down, or something? |
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| 491 | elseif (strpos($clean, 'sleep') !== false && preg_match('~(^|[^a-z])sleep($|[^[_a-z])~s', $clean) != 0) |
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| 492 | $fail = true; |
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| 493 | elseif (strpos($clean, 'benchmark') !== false && preg_match('~(^|[^a-z])benchmark($|[^[a-z])~s', $clean) != 0) |
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| 494 | $fail = true; |
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| 495 | ||
| 496 | if (!empty($fail) && function_exists('log_error')) |
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| 497 | smf_db_error_backtrace('Hacking attempt...', 'Hacking attempt...' . "\n" . $db_string, E_USER_ERROR, __FILE__, __LINE__); |
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| 498 | } |
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| 499 | ||
| 500 | if (empty($db_unbuffered)) |
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| 501 | $ret = @mysqli_query($connection, $db_string); |
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| @@ 421-465 (lines=45) @@ | ||
| 418 | } |
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| 419 | ||
| 420 | // First, we clean strings out of the query, reduce whitespace, lowercase, and trim - so we can check it over. |
|
| 421 | if (empty($modSettings['disableQueryCheck'])) |
|
| 422 | { |
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| 423 | $clean = ''; |
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| 424 | $old_pos = 0; |
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| 425 | $pos = -1; |
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| 426 | while (true) |
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| 427 | { |
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| 428 | $pos = strpos($db_string, '\'', $pos + 1); |
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| 429 | if ($pos === false) |
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| 430 | break; |
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| 431 | $clean .= substr($db_string, $old_pos, $pos - $old_pos); |
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| 432 | ||
| 433 | while (true) |
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| 434 | { |
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| 435 | $pos1 = strpos($db_string, '\'', $pos + 1); |
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| 436 | $pos2 = strpos($db_string, '\\', $pos + 1); |
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| 437 | if ($pos1 === false) |
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| 438 | break; |
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| 439 | elseif ($pos2 === false || $pos2 > $pos1) |
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| 440 | { |
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| 441 | $pos = $pos1; |
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| 442 | break; |
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| 443 | } |
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| 444 | ||
| 445 | $pos = $pos2 + 1; |
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| 446 | } |
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| 447 | $clean .= ' %s '; |
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| 448 | ||
| 449 | $old_pos = $pos + 1; |
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| 450 | } |
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| 451 | $clean .= substr($db_string, $old_pos); |
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| 452 | $clean = trim(strtolower(preg_replace($allowed_comments_from, $allowed_comments_to, $clean))); |
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| 453 | ||
| 454 | // Comments? We don't use comments in our queries, we leave 'em outside! |
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| 455 | if (strpos($clean, '/*') > 2 || strpos($clean, '--') !== false || strpos($clean, ';') !== false) |
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| 456 | $fail = true; |
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| 457 | // Trying to change passwords, slow us down, or something? |
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| 458 | elseif (strpos($clean, 'sleep') !== false && preg_match('~(^|[^a-z])sleep($|[^[_a-z])~s', $clean) != 0) |
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| 459 | $fail = true; |
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| 460 | elseif (strpos($clean, 'benchmark') !== false && preg_match('~(^|[^a-z])benchmark($|[^[a-z])~s', $clean) != 0) |
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| 461 | $fail = true; |
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| 462 | ||
| 463 | if (!empty($fail) && function_exists('log_error')) |
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| 464 | smf_db_error_backtrace('Hacking attempt...', 'Hacking attempt...' . "\n" . $db_string, E_USER_ERROR, __FILE__, __LINE__); |
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| 465 | } |
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| 466 | ||
| 467 | // Set optimize stuff |
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| 468 | if (isset($query_opt[$identifier])) |
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