/**
* Get the key of the current client session.
*
* @return string Session key
*
* @throws Exception Throws if an error occurred.
*/
function getSessionKey()
{
// Return the key from the globals if set
if (isset($GLOBALS['session_key'])) {
return $GLOBALS['session_key'];
}
// Get the session cookie name
$sessionCookieName = Registry::getValue('client.session.cookie.name')->getValue();
// Get the session key
$sessionKey = CookieManager::getCookie($sessionCookieName);
// Set the session key global
$GLOBALS['session_key'] = $sessionKey;
// Return the session key
return $sessionKey;
}
/**
* Set the language tag cookie.
*
* @param string|null $langTag The language tag, or null to reset.
*
* @throws Exception Throws if the language tag is unknown or invalid.
*/
public static function setCookieLanguageTag($langTag)
{
// Make sure the tag is valid or null
if ($langTag !== null && !static::isWithTag($langTag)) {
throw new Exception('Invalid or unknown language tag.');
}
// Set or reset the cookie
if ($langTag !== null) {
CookieManager::setCookie(static::LANGUAGE_COOKIE_NAME, $langTag, static::LANGUAGE_COOKIE_EXPIRE);
} else {
CookieManager::deleteCookie(static::LANGUAGE_COOKIE_NAME);
}
}