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<?php |
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function not_found($message = '') { |
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header("HTTP/1.1 404 Not Found"); |
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echo $message."\n"; |
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die(); |
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} |
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if (!isset($_SERVER['REQUEST_URI'])) |
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not_found(); |
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$uri = htmlspecialchars($_SERVER['REQUEST_URI']); |
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if ($uri === '/canonical.php') |
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not_found(); |
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$dir = dirname(__FILE__).dirname($uri).'/'; |
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if (!file_exists($dir)) |
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not_found("{$uri} is not found."); |
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$file = pathinfo(basename($uri)); |
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$name = isset($file['filename']) ? $file['filename'] : ''; |
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$ext = isset($file['extension']) ? '.'.$file['extension'] : ''; |
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$filenames = array( |
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$name . strtolower($ext), |
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strtolower($name) . $ext, |
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strtolower($name) . strtolower($ext), |
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strtolower($name) . strtoupper($ext), |
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$name . strtoupper($ext), |
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strtoupper($name) . $ext, |
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strtoupper($name) . strtoupper($ext), |
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strtoupper($name) . strtolower($ext), |
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); |
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foreach ($filenames as $filename) { |
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if (file_exists($dir.$filename)) { |
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header('HTTP/1.1 301 Moved Permanently'); |
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header('Location: '.dirname($uri).'/'.$filename); |
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exit(); |
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} |
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} |
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not_found("{$uri} is not found."); |
