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23 lines
661 B
PHP
23 lines
661 B
PHP
<?php
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// Log non-WordPress URL query strings.
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add_action(
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'parse_request',
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static function ($wp) {
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if (empty($_SERVER['QUERY_STRING'])) {
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return;
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}
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if (strpos($_SERVER['QUERY_STRING'], '+') !== false) {
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error_log(sprintf('Non-WordPress query string: plus_encoded_whitespace ("%s")', $_SERVER['QUERY_STRING']));
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return;
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}
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if (preg_match('/%[[:xdigit:]]?[a-f]/', $_SERVER['QUERY_STRING']) === 1) {
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error_log(sprintf('Non-WordPress query string: lower_case_hexadecimal_digit ("%s")', $_SERVER['QUERY_STRING']));
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return;
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}
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},
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0,
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1
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);
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