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