SimpleMachines /
SMF2.1
| @@ 422-466 (lines=45) @@ | ||
| 419 | } |
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| 420 | ||
| 421 | // First, we clean strings out of the query, reduce whitespace, lowercase, and trim - so we can check it over. |
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| 422 | if (empty($modSettings['disableQueryCheck'])) |
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| 423 | { |
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| 424 | $clean = ''; |
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| 425 | $old_pos = 0; |
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| 426 | $pos = -1; |
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| 427 | while (true) |
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| 428 | { |
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| 429 | $pos = strpos($db_string, '\'', $pos + 1); |
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| 430 | if ($pos === false) |
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| 431 | break; |
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| 432 | $clean .= substr($db_string, $old_pos, $pos - $old_pos); |
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| 433 | ||
| 434 | while (true) |
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| 435 | { |
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| 436 | $pos1 = strpos($db_string, '\'', $pos + 1); |
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| 437 | $pos2 = strpos($db_string, '\\', $pos + 1); |
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| 438 | if ($pos1 === false) |
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| 439 | break; |
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| 440 | elseif ($pos2 === false || $pos2 > $pos1) |
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| 441 | { |
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| 442 | $pos = $pos1; |
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| 443 | break; |
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| 444 | } |
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| 445 | ||
| 446 | $pos = $pos2 + 1; |
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| 447 | } |
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| 448 | $clean .= ' %s '; |
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| 449 | ||
| 450 | $old_pos = $pos + 1; |
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| 451 | } |
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| 452 | $clean .= substr($db_string, $old_pos); |
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| 453 | $clean = trim(strtolower(preg_replace($allowed_comments_from, $allowed_comments_to, $clean))); |
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| 454 | ||
| 455 | // Comments? We don't use comments in our queries, we leave 'em outside! |
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| 456 | if (strpos($clean, '/*') > 2 || strpos($clean, '--') !== false || strpos($clean, ';') !== false) |
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| 457 | $fail = true; |
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| 458 | // Trying to change passwords, slow us down, or something? |
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| 459 | elseif (strpos($clean, 'sleep') !== false && preg_match('~(^|[^a-z])sleep($|[^[_a-z])~s', $clean) != 0) |
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| 460 | $fail = true; |
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| 461 | elseif (strpos($clean, 'benchmark') !== false && preg_match('~(^|[^a-z])benchmark($|[^[a-z])~s', $clean) != 0) |
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| 462 | $fail = true; |
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| 463 | ||
| 464 | if (!empty($fail) && function_exists('log_error')) |
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| 465 | smf_db_error_backtrace('Hacking attempt...', 'Hacking attempt...' . "\n" . $db_string, E_USER_ERROR, __FILE__, __LINE__); |
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| 466 | } |
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| 467 | ||
| 468 | // Set optimize stuff |
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| 469 | if (isset($query_opt[$identifier])) |
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| @@ 455-499 (lines=45) @@ | ||
| 452 | } |
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| 453 | ||
| 454 | // First, we clean strings out of the query, reduce whitespace, lowercase, and trim - so we can check it over. |
|
| 455 | if (empty($modSettings['disableQueryCheck'])) |
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| 456 | { |
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| 457 | $clean = ''; |
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| 458 | $old_pos = 0; |
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| 459 | $pos = -1; |
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| 460 | while (true) |
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| 461 | { |
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| 462 | $pos = strpos($db_string, '\'', $pos + 1); |
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| 463 | if ($pos === false) |
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| 464 | break; |
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| 465 | $clean .= substr($db_string, $old_pos, $pos - $old_pos); |
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| 466 | ||
| 467 | while (true) |
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| 468 | { |
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| 469 | $pos1 = strpos($db_string, '\'', $pos + 1); |
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| 470 | $pos2 = strpos($db_string, '\\', $pos + 1); |
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| 471 | if ($pos1 === false) |
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| 472 | break; |
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| 473 | elseif ($pos2 === false || $pos2 > $pos1) |
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| 474 | { |
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| 475 | $pos = $pos1; |
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| 476 | break; |
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| 477 | } |
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| 478 | ||
| 479 | $pos = $pos2 + 1; |
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| 480 | } |
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| 481 | $clean .= ' %s '; |
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| 482 | ||
| 483 | $old_pos = $pos + 1; |
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| 484 | } |
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| 485 | $clean .= substr($db_string, $old_pos); |
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| 486 | $clean = trim(strtolower(preg_replace($allowed_comments_from, $allowed_comments_to, $clean))); |
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| 487 | ||
| 488 | // Comments? We don't use comments in our queries, we leave 'em outside! |
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| 489 | if (strpos($clean, '/*') > 2 || strpos($clean, '--') !== false || strpos($clean, ';') !== false) |
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| 490 | $fail = true; |
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| 491 | // Trying to change passwords, slow us down, or something? |
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| 492 | elseif (strpos($clean, 'sleep') !== false && preg_match('~(^|[^a-z])sleep($|[^[_a-z])~s', $clean) != 0) |
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| 493 | $fail = true; |
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| 494 | elseif (strpos($clean, 'benchmark') !== false && preg_match('~(^|[^a-z])benchmark($|[^[a-z])~s', $clean) != 0) |
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| 495 | $fail = true; |
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| 496 | ||
| 497 | if (!empty($fail) && function_exists('log_error')) |
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| 498 | smf_db_error_backtrace('Hacking attempt...', 'Hacking attempt...' . "\n" . $db_string, E_USER_ERROR, __FILE__, __LINE__); |
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| 499 | } |
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| 500 | ||
| 501 | if (empty($db_unbuffered)) |
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| 502 | $ret = @mysqli_query($connection, $db_string); |
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