/**
* dispatch
* dispatches execution to a handler based on
* a request uri
*
* pattern modifications based on those by Joe Topjian,
* in the GluePHP micro-framework: http://gluephp.com/
*
* @param \dirp\http\request $request
* @param \dirp\http\response
* @throws \dirp\exception\routing if no routes are defined
* @throws \dirp\exception\routing if a method is assigned but not existant
* @return mixed
*/
public static function dispatch(\dirp\http\request $request, \dirp\http\response $response)
{
if (!static::$_routes) {
return false;
// boy i sure hope this is handled somewhere
}
$routes = static::$_routes;
$path = $request->get_uri();
foreach ($routes as $pair) {
$pattern = $pair[0];
$handler = $pair[1];
$pattern = str_replace('/', '\\/', $pattern);
$pattern = '^' . $pattern . '\\/?$';
if (preg_match("/{$pattern}/i", $path, $matches)) {
if (!method_exists($handler[0], $handler[1])) {
throw new \dirp\exception\routing('that method (' . $handler[1] . ') doesn\'t exist!');
}
// make matches available through the request
$request->set_params($matches);
// route passing/halting:
try {
// check for a 'before' handler for this controller.
if (method_exists($handler[0], 'before')) {
call_user_func(array($handler[0], 'before'), $request, $response);
}
if ($ret = call_user_func(array($handler[0], $handler[1]), $request, $response)) {
return $ret;
}
return $handler[0];
} catch (\dirp\exception\pass $e) {
continue;
} catch (\dirp\exception\halt $e) {
return $e->getMessage();
}
}
}
throw new \dirp\exception\routing('no matches, four oh four!');
}
