gistfile1.txt

switch($this->request->param('Action')) {
                case 'preview':
                        return $this->renderWith('DocumentsPage_preview', array(
                            'requestedFile' => $file
                        ));
                    break;
                case 'open':
                    $this->response->addHeader('Content-Type', $mime);
                    $this->response->addHeader('Content-Disposition', 'attachment; filename='.$file->Title + "." + $file->Extension);
                    $this->response->addHeader('Content-Disposition', 'inline; filename='.str_replace(' ', '_', $file->Title.'.'.$file->getExtension()));
                    $this->response->addHeader('Content-Length', $file->getSize());
                    $this->response->setBody(file_get_contents($file->getFullPath()));
                    //Debug::dump($this->response);
                    return $this->response;
                    break;


                case 'download':
                    //$this->response->addHeader('Content-Description', 'File Transfer');
                    //$this->response->addHeader('Content-Type', $mime);
                    //$this->response->addHeader('Content-Disposition', 'attachment; filename='.$file->Title + "." + $file->Extension);
                    //$this->response->setBody(file_get_contents($file->getFullPath()));
                    header("Content-disposition: attachment; filename=" + $file->Title + '.' + $file->Extension  + "'");
                    header('Content-type: ' + $mime);
                    readfile(file_get_contents($file->getFullPath()));
                    //return $this->response;
                    break;


                default:
                    user_error('Unknow action');
                    break;
            }