/**
* If the user is logged in, returns signature URL snippet, in form &signature=SOMETHING.
* Otherwise, empty string is returned
*/
public static function get_signature_text()
{
global $usr;
if (is_array($usr)) {
if (isset($_SESSION['signature'])) {
$signature = $_SESSION['signature'];
} else {
$signature = null;
}
if ($signature == null) {
// TODO grhhh, it's not cryptographically strong RNG
$signature = sprintf('%04X%04X-%04X-%04X-%04X-%04X%04X%04X', mt_rand(0, 65535), mt_rand(0, 65535), mt_rand(0, 65535), mt_rand(16384, 20479), mt_rand(32768, 49151), mt_rand(0, 65535), mt_rand(0, 65535), mt_rand(0, 65535));
$_SESSION['signature'] = $signature;
}
Php7Handler::apc_store($signature, $usr, 3600);
# cache it for 1 hour
return '&signature=' . $signature;
} else {
return '';
}
}
static function getConfig()
{
global $debug_page;
if (self::$config !== null) {
return self::$config;
}
$useCache = !(isset($debug_page) ? $debug_page : false);
$cache_key = 'HTMLPurifierConfig';
$result = $useCache ? Php7Handler::apc_fetch($cache_key) : false;
if ($result === false) {
$result = self::createConfig();
// finalize and lock the config
$result->getHTMLDefinition();
$result->getCSSDefinition();
$result->getURIDefinition();
if ($useCache) {
Php7Handler::apc_store($cache_key, $result, 60);
# cache it for 60 seconds
}
}
return self::$config = $result;
}
