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Use Wikimedia's css sanitizer for custom css parsing (#919)

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This commit is contained in:
Sacha Reinert
2017-06-14 06:26:15 +02:00
committed by Guangcong Luo
parent d4a085365e
commit a6e7db9b89
62 changed files with 10273 additions and 19 deletions
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36
customcss.php
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@@ -2,6 +2,13 @@
include '../pokemonshowdown.com/config/servers.inc.php';
spl_autoload_register(function ($class) {
require_once('lib/css-sanitizer/'.$class.'.php');
});
use Wikimedia\CSS\Parser\Parser;
use Wikimedia\CSS\Sanitizer\StylesheetSanitizer;
$server = @$_REQUEST['server'];
if ($server === 'showdown' || $server === 'smogtours') die();
if (empty($PokemonServers[$server])) {
@@ -57,25 +64,16 @@ if ($curlret) {
$code = curl_getinfo($curl, CURLINFO_HTTP_CODE);
if ($code === 200) {
// Sanitise the CSS.
require '../pokemonshowdown.com/lib/htmlpurifier/HTMLPurifier.auto.php';
require '../pokemonshowdown.com/lib/csstidy/class.csstidy.php';
$config = HTMLPurifier_Config::createDefault();
$config->set('Filter.ExtractStyleBlocks', true);
$config->set('CSS.Proprietary', true);
$config->set('CSS.AllowImportant', true);
$config->set('CSS.AllowTricky', true);
$level = error_reporting(E_ALL & ~E_STRICT);
// $purifier = new HTMLPurifier($config);
// $html = $purifier->purify('<style>' . $curlret . '</style>');
// error_reporting($level);
// list($outputcss) = $purifier->context->get('StyleBlocks');
$context = new HTMLPurifier_Context();
$filter = new HTMLPurifier_Filter_ExtractStyleBlocks();
$outputcss = $filter->cleanCSS($curlret, $config, $context);
// Parse a stylesheet from a string
$parser = Parser::newFromString($curlret);
$stylesheet = $parser->parseStylesheet();
// Apply sanitization to the stylehseet
$sanitizer = StylesheetSanitizer::newDefault();
$newStylesheet = $sanitizer->sanitize( $stylesheet );
// Convert the sanitized stylesheet back to text
$outputcss = Wikimedia\CSS\Util::stringify( $newStylesheet, [ 'minify' => true ] );
file_put_contents($cssfile, $outputcss);
if (!$invalidate) echo $outputcss;