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<?php
class Toro {
public static function serve($routes) {
ToroHook::fire('before_request');
$request_method = strtolower($_SERVER['REQUEST_METHOD']);
$path_info = isset($_SERVER['PATH_INFO']) ? $_SERVER['PATH_INFO'] : '/';
$discovered_handler = NULL;
$regex_matches = array();
if (isset($routes[$path_info])) {
$discovered_handler = $routes[$path_info];
}
elseif ($routes) {
$tokens = array(
':string' => '([a-zA-Z]+)',
':number' => '([0-9]+)',
':alpha' => '([a-zA-Z0-9-_]+)'
);
foreach ($routes as $pattern => $handler_name) {
$pattern = strtr($pattern, $tokens);
if (preg_match('#^/?' . $pattern . '/?$#', $path_info, $matches)) {
$discovered_handler = $handler_name;
$regex_matches = $matches;
break;
}
}
}
if ($discovered_handler && class_exists($discovered_handler)) {
unset($regex_matches[0]);
$handler_instance = new $discovered_handler();
if (self::xhr_request() && method_exists($discovered_handler, $request_method . '_xhr')) {
header('Content-type: application/json');
header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
header('Cache-Control: no-store, no-cache, must-revalidate');
header('Cache-Control: post-check=0, pre-check=0', false);
header('Pragma: no-cache');
$request_method .= '_xhr';
}
if (method_exists($handler_instance, $request_method)) {
ToroHook::fire('before_handler');
call_user_func_array(array($handler_instance, $request_method), $regex_matches);
ToroHook::fire('after_handler');
}
else {
ToroHook::fire('404');
}
}
else {
ToroHook::fire('404');
}
ToroHook::fire('after_request');
}
private static function xhr_request() {
return isset($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] === 'XMLHttpRequest';
}
}
class ToroHook {
private static $instance;
private $hooks = array();
private function __construct() { }
private function __clone() { }
public static function add($hook_name, $fn) {
$instance = self::get_instance();
$instance->hooks[$hook_name][] = $fn;
}
public static function fire($hook_name, $params = NULL) {
$instance = self::get_instance();
if (isset($instance->hooks[$hook_name])) {
foreach ($instance->hooks[$hook_name] as $fn) {
call_user_func_array($fn, array(&$params));
}
}
}
public static function get_instance() {
if (empty(self::$instance)) {
self::$instance = new ToroHook();
}
return self::$instance;
}
}