function getAPIUserID()
{
static $user_id;
if (!$user_id) {
$user_id = APIAuthentication::getInstance()->authenticate();
}
return $user_id;
}
/**
* Finds and calls the requested resource
* @param string $resource_name Requested resource name
* @return string
*/
public final function fetchResource($resource_name = null)
{
if ($resource_name == null) {
$resource_name = $this->get('resource');
}
$resource_obj = ApiResource::getInstance($resource_name, $this);
if ($resource_obj === false) {
$this->checkInternally($resource_name);
}
$access = $this->getResourceAccess($resource_name, $this->request_method);
if ($access == 'protected') {
$auth_handler = APIAuthentication::getInstance();
$user = $auth_handler->authenticateRequest();
if ($user === false) {
throw new Exception($auth_handler->getError(), 403);
}
$this->set('user', $user);
}
if (!$this->checkRequestLimit()) {
throw new Exception(JText::_('COM_API_RATE_LIMIT_EXCEEDED'), 403);
}
$this->log();
if ($resource_obj !== false) {
$resource_obj->invoke();
} else {
call_user_func(array($this, $resource_name));
}
$output = $this->encode();
return $output;
}