/** * Download a file * Runs through various permissions checks to ensure user has access * * @return void */ public function downloadTask() { // Incoming $id = Request::getInt('id', 0); $alias = Request::getVar('alias', ''); $d = Request::getVar('d', 'inline'); //make sure we have a proper disposition if ($d != "inline" && $d != "attachment") { $d = "inline"; } // Load the resource $resource = new Resource($this->database); if ($alias && !$resource->loadAlias($alias)) { App::abort(404, Lang::txt('COM_RESOURCES_RESOURCE_NOT_FOUND')); return; } elseif (substr($id, 0, 4) == '9999') { $resource->id = $id; $resource->standalone = 1; $resource->path = null; $resource->created = Date::of('now')->format('Y-m-d 00:00:00'); } elseif (!$resource->load($id)) { App::abort(404, Lang::txt('COM_RESOURCES_RESOURCE_NOT_FOUND')); return; } // Check if the resource is for logged-in users only and the user is logged-in if ($token = Request::getVar('token', '', 'get')) { $token = base64_decode($token); $key = App::hash(@$_SERVER['HTTP_USER_AGENT']); $crypter = new \Hubzero\Encryption\Encrypter(new \Hubzero\Encryption\Cipher\Simple(), new \Hubzero\Encryption\Key('simple', $key, $key)); $session_id = $crypter->decrypt($token); $session = \Hubzero\Session\Helper::getSession($session_id); $user = User::getInstance($session->userid); $user->guest = 0; $user->id = $session->userid; $user->usertype = $session->usertype; } else { $user = User::getRoot(); } if ($resource->access == 1 && $user->get('guest')) { App::abort(403, Lang::txt('COM_RESOURCES_ALERTNOTAUTH')); return; } // Check if the resource is "private" and the user is allowed to view it if ($resource->access == 4 || $resource->access == 3 || !$resource->standalone) { if ($this->checkGroupAccess($resource, $user)) { App::abort(403, Lang::txt('COM_RESOURCES_ALERTNOTAUTH')); return; } } if ($resource->standalone && !$resource->path) { $resource->path = DS . trim($this->config->get('uploadpath', '/site/resources'), DS) . Html::build_path($resource->created, $resource->id, '') . DS . 'media' . DS . Request::getVar('file'); } $resource->path = trim($resource->path); // Ensure we have a path // Ensure resource is published - stemedhub #472 if (empty($resource->path) && $resource->published != 1) { App::abort(404, Lang::txt('COM_RESOURCES_FILE_NOT_FOUND')); return; } // Get the configured upload path $base_path = $this->config->get('uploadpath', '/site/resources'); if ($base_path) { $base_path = DS . trim($base_path, DS); } // Does the path start with a slash? if (substr($resource->path, 0, 1) != DS) { $resource->path = DS . $resource->path; // Does the beginning of the $resource->path match the config path? if (substr($resource->path, 0, strlen($base_path)) == $base_path) { // Yes - this means the full path got saved at some point } else { // No - append it $resource->path = $base_path . $resource->path; } } // Add root path $filename = PATH_APP . $resource->path; // Ensure the file exist if (!file_exists($filename)) { App::abort(404, Lang::txt('COM_RESOURCES_FILE_NOT_FOUND') . ' ' . $filename); return; } $ext = strtolower(\Filesystem::extension($filename)); if (!in_array($ext, array('jpg', 'jpeg', 'jpe', 'gif', 'png', 'pdf', 'htm', 'html', 'txt', 'json', 'xml'))) { $d = 'attachment'; } // Initiate a new content server and serve up the file $xserver = new \Hubzero\Content\Server(); $xserver->filename($filename); $xserver->disposition($d); $xserver->acceptranges(false); // @TODO fix byte range support if (!$xserver->serve()) { // Should only get here on error throw new Exception(Lang::txt('COM_RESOURCES_SERVER_ERROR'), 500); } else { exit; } return; }
/** * Generate a Windows tool invoke URL to redirect to * * @param string $option Name of the component * @return void */ public function invoke($option) { $no_html = Request::getInt('no_html', 0); $response = new StdClass(); $response->success = false; $response->message = Lang::txt('No invoke URL found.'); // Check for an imconing token. if ($token = Request::getVar('token', '', 'get')) { $dtoken = base64_decode($token); $key = App::hash(@$_SERVER['HTTP_USER_AGENT']); $crypter = new \Hubzero\Encryption\Encrypter(new \Hubzero\Encryption\Cipher\Simple(), new \Hubzero\Encryption\Key('simple', $key, $key)); $session_id = $crypter->decrypt($dtoken); $session = \Hubzero\Session\Helper::getSession($session_id); $user = User::getInstance($session->userid); $user->set('guest', 0); $user->set('id', $session->userid); $user->set('username', $session->username); $ip = $session->ip; } else { $user = User::getInstance(); $ip = Request::ip(); } // Is the user validated? if ($user->isGuest()) { $response->message = Lang::txt('Login is required to perform this action.'); } else { $appid = Request::getVar('appid'); // Generate the URL $url = $this->generateInvokeUrl($option, $appid, $user, $ip); if ($url) { if (!$token) { $session = App::get('session'); $session_id = $session->getId(); $key = App::hash(@$_SERVER['HTTP_USER_AGENT']); $crypter = new \Hubzero\Encryption\Encrypter(new \Hubzero\Encryption\Cipher\Simple(), new \Hubzero\Encryption\Key('simple', $key, $key)); $token = base64_encode($crypter->encrypt($session_id)); } $rurl = rtrim($this->params->get('invoke_url', 'http://wapps.hubzero.org'), '/') . '/v1?'; //standaloneUrl=' . $url; $params = array(); $params[] = 'token=' . $token; if ($appid) { $params[] = 'appid=' . $appid; } $params[] = 'standaloneUrl=' . $url; $rurl .= implode('&', $params); $response->success = true; $response->message = $rurl; if (!$no_html) { $this->view('invoke', 'display')->set('url', $rurl)->set('rurl', $_SERVER['HTTP_REFERER'])->display(); exit; App::redirect($url); } } } if (!$no_html) { App::abort(404, Lang::txt('No invoke URL found.')); } $response = json_encode($response); if ($callback = Request::getVar('callback')) { $response = $callback . '(' . $response . ')'; } echo $response; exit; }