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<?php
class RequestDispatcher {
public function __construct(
protected Router $router
) {}
public function dispatch(): void {
try {
if (!in_array($_SERVER['REQUEST_METHOD'], ['POST', 'GET']))
throw new NotImplementedException('Method '.$_SERVER['REQUEST_METHOD'].' not implemented');
$route = $this->router->find(self::path());
if ($route === null)
throw new NotFoundException('Route not found');
$route = preg_split('/ +/', $route);
$handler_class = $route[0];
if (($pos = strrpos($handler_class, '/')) !== false) {
$class_name = substr($handler_class, $pos+1);
$class_name = ucfirst(to_camel_case($class_name));
$handler_class = str_replace('/', '\\', substr($handler_class, 0, $pos)).'\\'.$class_name;
} else {
$handler_class = ucfirst(to_camel_case($handler_class));
}
$handler_class = 'handler\\'.$handler_class;
if (!class_exists($handler_class))
throw new NotFoundException('Handler class "'.$handler_class.'" not found');
$router_input = [];
if (count($route) > 1) {
for ($i = 1; $i < count($route); $i++) {
$var = $route[$i];
list($k, $v) = explode('=', $var);
$router_input[trim($k)] = trim($v);
}
}
$skin = new Skin();
$skin->static[] = 'css/common.css';
$skin->static[] = 'js/common.js';
$lang = LangData::getInstance();
$skin->addLangKeys($lang->search('/^theme_/'));
/** @var RequestHandler $handler */
$handler = new $handler_class($skin, $lang, $router_input);
$resp = $handler->beforeDispatch();
if ($resp instanceof Response) {
$resp->send();
return;
}
$resp = call_user_func([$handler, strtolower($_SERVER['REQUEST_METHOD'])]);
} catch (NotFoundException $e) {
$resp = $this->getErrorResponse($e, 'not_found');
} catch (ForbiddenException $e) {
$resp = $this->getErrorResponse($e, 'forbidden');
} catch (NotImplementedException $e) {
$resp = $this->getErrorResponse($e, 'not_implemented');
} catch (UnauthorizedException $e) {
$resp = $this->getErrorResponse($e, 'unauthorized');
}
$resp->send();
}
protected function getErrorResponse(Exception $e, string $render_function): Response {
$ctx = new SkinContext('\\skin\\error');
$html = call_user_func([$ctx, $render_function], $e->getMessage());
return new Response($e->getCode(), $html);
}
public static function path(): string {
$uri = $_SERVER['REQUEST_URI'];
if (($pos = strpos($uri, '?')) !== false)
$uri = substr($uri, 0, $pos);
return $uri;
}
}
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