/**
* 每个请求层，最终被调用的方法
*
* @return mixed
*/
public function handle()
{
/** @var Request $request */
$request =& $this->flow->contexts['request'];
// 如果当前请求是初始请求，那么对其进行额外处理
// 如果当前请求是CLI，那么直接当做为初始化请求
if (PHP_SAPI == 'cli' || $request->isInitial()) {
if (!empty($_SERVER['HTTPS']) && filter_var($_SERVER['HTTPS'], FILTER_VALIDATE_BOOLEAN) || isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && 'https' === $_SERVER['HTTP_X_FORWARDED_PROTO'] && in_array($_SERVER['REMOTE_ADDR'], Request::$trustedProxies)) {
$request->secure = true;
}
if (isset($_SERVER['REQUEST_METHOD'])) {
$method = $_SERVER['REQUEST_METHOD'];
} else {
$method = Http::GET;
}
if (isset($_SERVER['HTTP_REFERER'])) {
$referrer = $_SERVER['HTTP_REFERER'];
}
if (isset($_SERVER['HTTP_USER_AGENT'])) {
Request::$userAgent = $_SERVER['HTTP_USER_AGENT'];
}
if (isset($_SERVER['HTTP_X_REQUESTED_WITH'])) {
$requestedWith = $_SERVER['HTTP_X_REQUESTED_WITH'];
}
Request::$clientIp = Request::getClientIP();
if ($method !== Http::GET) {
$body = file_get_contents('php://input');
}
$cookies = [];
if ($cookieKeys = array_keys($_COOKIE)) {
foreach ($cookieKeys as $key) {
$cookies[$key] = Cookie::get($key);
}
}
if (isset($_SERVER['SERVER_PROTOCOL'])) {
$request->protocol = $_SERVER['SERVER_PROTOCOL'];
}
$request->query($_GET)->post($_POST);
if (isset($method)) {
$request->method = $method;
}
if (isset($referrer)) {
$request->referrer = $referrer;
}
if (isset($requestedWith)) {
$request->requestedWith = $requestedWith;
}
if (isset($body)) {
$request->body = $body;
}
if (isset($cookies)) {
$request->cookie($cookies);
}
}
}
/**
* @param string $id session id
* @return string
*/
protected function _read($id = null)
{
return Cookie::get($this->_name, null);
}
