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19 lines
675 B
PHP
19 lines
675 B
PHP
<?php
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$domain = $_GET['domain'] ?? '';
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if (strpos($domain, '.') === false) {
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http_response_code(400);
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} elseif (strpos($domain, '/') !== false) {
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http_response_code(400);
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} elseif (strpos($domain, ':') !== false) {
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http_response_code(400);
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} elseif (filter_var($domain, FILTER_VALIDATE_DOMAIN, FILTER_FLAG_HOSTNAME) === false) {
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http_response_code(400);
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} elseif (filter_var($domain, FILTER_VALIDATE_IP)) {
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http_response_code(400);
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} else {
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// Commented because logging is disabled as otherwise all attempts will be logged which spams the logs
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// error_log($domain . ' was accepted as valid domain.');
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http_response_code(200);
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}
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