mirror of
https://github.com/smogon/pokemon-showdown-client.git
synced 2026-03-21 17:50:29 -05:00
106 lines
3.4 KiB
PHP
106 lines
3.4 KiB
PHP
<?php
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ini_set('max_execution_time', 60); // 1 minute
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require_once __DIR__ . '/config/servers.inc.php';
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require_once __DIR__ . '/config/config.inc.php';
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spl_autoload_register(function ($class) {
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require_once('lib/css-sanitizer/'.str_replace('\\', DIRECTORY_SEPARATOR, $class).'.php');
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});
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use Wikimedia\CSS\Parser\Parser;
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use Wikimedia\CSS\Sanitizer\StylesheetSanitizer;
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$server = @$_REQUEST['server'];
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if ($server === 'showdown' || $server === 'smogtours') die();
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if (empty($PokemonServers[$server])) {
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header('Content-Type: text/plain; charset=utf-8');
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die('server not found');
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}
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$invalidate = isset($_REQUEST['invalidate']);
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if (!$invalidate) header('Content-Type: text/css'); // the CSS file should specify a charset
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$serverdata =& $PokemonServers[$server];
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$customcssuri = @$serverdata['customcss'];
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if (empty($customcssuri)) {
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$protocol = ($serverdata['port'] === 443) ? 'https' : 'http';
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$customcssuri = $protocol . '://'.$serverdata['server'].':'.$serverdata['port'].'/custom.css';
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}
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// No need to sanitise $server because it should be safe already.
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$cssfile = '../pokemonshowdown.com/config/customcss/' . $server . '.css';
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$lastmodified = @filemtime($cssfile);
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$timenow = time();
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$expiration = ($lastmodified ? $lastmodified : $timenow) + 3600;
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header('Expires: ' . gmdate('D, d M Y H:i:s T', $expiration));
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// echo '/* ', $customcssuri, ' */';
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if (!$invalidate && $lastmodified && (($timenow - $lastmodified) < 3600)) {
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// Don't check for modifications more than once an hour.
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readfile($cssfile);
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die();
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}
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$curl = curl_init($customcssuri);
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if ($lastmodified && !$invalidate) {
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curl_setopt($curl, CURLOPT_HTTPHEADER, array(
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'If-Modified-Since: ' . gmdate('D, d M Y H:i:s T', $lastmodified),
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'User-Agent: PSCustomCSS/0.1 (server=' . $server . ($invalidate ? '; invalidate=1' : '') . ')',
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// 'X-Forwarded-For: ' . @$_SERVER['HTTP_X_FORWARDED_FOR'],
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));
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} else {
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curl_setopt($curl, CURLOPT_HTTPHEADER, array(
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'User-Agent: PSCustomCSS/0.1 (server=' . $server . ($invalidate ? '; invalidate=1' : '') . ')',
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// 'X-Forwarded-For: ' . @$_SERVER['HTTP_X_FORWARDED_FOR'],
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));
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}
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curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
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curl_setopt($curl, CURLOPT_MAXREDIRS, 5);
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curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
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$curlret = curl_exec($curl);
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if ($curlret) {
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$code = curl_getinfo($curl, CURLINFO_HTTP_CODE);
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if ($code === 200) {
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// Sanitise the CSS.
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// Parse a stylesheet from a string
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$parser = Parser::newFromString($curlret);
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$stylesheet = $parser->parseStylesheet();
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// Apply sanitization to the stylehseet
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$sanitizer = StylesheetSanitizer::newDefault();
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$newStylesheet = $sanitizer->sanitize( $stylesheet );
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// Convert the sanitized stylesheet back to text
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$outputcss = Wikimedia\CSS\Util::stringify( $newStylesheet, [ 'minify' => true ] );
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file_put_contents($cssfile, $outputcss);
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if (!$invalidate) echo $outputcss;
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} else {
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// Either no modifications (status: 304) or an error condition.
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if ($invalidate) die('Error: custom CSS file not found');
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if ($lastmodified) readfile($cssfile);
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}
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touch($cssfile, $timenow); // Don't check again for an hour.
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} else if (file_exists($cssfile)) {
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if ($invalidate) die('Error: custom CSS file not found');
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readfile($cssfile);
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}
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curl_close($curl);
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if ($invalidate) {
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?>
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<p>
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Done: <?= htmlspecialchars($customcssuri) ?> was reloaded.
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</p>
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<p>
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<a href="http://<?= $psconfig['routes']['root'] ?>/servers/<?= $server ?>">Back to server management</a>
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</p>
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<?php
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}
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