/**
* Runs a rappture job.
*
* This is more than just invoking a tool. We're expecting a driver file to pass to the
* tool to be picked up and automatically run by rappture.
*
* @apiMethod POST
* @apiUri /tools/run
* @apiParameter {
* "name": "app",
* "description": "Name of app installed as a tool in the hub",
* "type": "string",
* "required": true,
* }
* @apiParameter {
* "name": "revision",
* "description": "The specific requested revision of the app",
* "type": "string",
* "required": false,
* "default": "default",
* }
* @apiParameter {
* "name": "xml",
* "description": "Content of the driver file that rappture will use to invoke the given app",
* "type": "string",
* "required": true,
* }
* @return void
*/
public function runTask()
{
$this->requiresAuthentication();
// Get the user_id and attempt to load user profile
$userid = App::get('authn')['user_id'];
$profile = User::getInstance($userid);
// Make sure we have a user
if (!$profile->get('id')) {
throw new Exception(Lang::txt('Unable to find user.'), 404);
}
// Grab tool name and version
$tool_name = Request::getVar('app', '');
$tool_version = Request::getVar('revision', 'default');
// Build application object
$app = new stdClass();
$app->name = trim(str_replace(':', '-', $tool_name));
$app->version = $tool_version;
$app->ip = $_SERVER["REMOTE_ADDR"];
// Check to make sure we have an app to invoke
if (!$app->name) {
throw new Exception(Lang::txt('A valid app name must be provided'), 404);
}
// Include needed tool libraries
require_once dirname(dirname(__DIR__)) . DS . 'tables' . DS . 'version.php';
require_once dirname(dirname(__DIR__)) . DS . 'tables' . DS . 'session.php';
require_once dirname(dirname(__DIR__)) . DS . 'tables' . DS . 'viewperm.php';
// Create database object
$database = \App::get('db');
// Load the tool version
$tv = new \Components\Tools\Tables\Version($database);
switch ($app->version) {
case 1:
case 'default':
$app->name = $tv->getCurrentVersionProperty($app->name, 'instance');
break;
case 'test':
case 'dev':
$app->name .= '_dev';
break;
default:
$app->name .= '_r' . $app->version;
break;
}
$app->toolname = $app->name;
if ($parent = $tv->getToolname($app->name)) {
$app->toolname = $parent;
}
// Check of the toolname has a revision indicator
$r = substr(strrchr($app->name, '_'), 1);
if (substr($r, 0, 1) != 'r' && substr($r, 0, 3) != 'dev') {
$r = '';
}
// No version passed and no revision
if ((!$app->version || $app->version == 'default') && !$r) {
// Get the latest version
$app->version = $tv->getCurrentVersionProperty($app->toolname, 'revision');
$app->name = $app->toolname . '_r' . $app->version;
}
// Get the caption/session title
$tv->loadFromInstance($app->name);
$app->caption = stripslashes($tv->title);
$app->title = stripslashes($tv->title);
// Make sure we have a valid tool
if ($app->title == '' || $app->toolname == '') {
throw new Exception(Lang::txt('The tool "%s" does not exist on the HUB.', $tool_name), 404);
}
// Get tool access
$toolAccess = \Components\Tools\Helpers\Utils::getToolAccess($app->name, $profile->get('username'));
// Do we have access
if ($toolAccess->valid != 1) {
throw new Exception($toolAccess->error->message, 500);
}
// Log the launch attempt
\Components\Tools\Helpers\Utils::recordToolUsage($app->toolname, $profile->get('id'));
// Get the middleware database
$mwdb = \Components\Tools\Helpers\Utils::getMWDBO();
// Find out how many sessions the user is running
$ms = new \Components\Tools\Tables\Session($mwdb);
$jobs = $ms->getCount($profile->get('username'));
// Find out how many sessions the user is ALLOWED to run.
include_once dirname(dirname(__DIR__)) . DS . 'tables' . DS . 'preferences.php';
$preferences = new \Components\Tools\Tables\Preferences($database);
$preferences->loadByUser($profile->get('id'));
if (!$preferences || !$preferences->id) {
$default = $preferences->find('one', array('alias' => 'default'));
$preferences->user_id = $profile->get('id');
$preferences->class_id = $default->id;
$preferences->jobs = $default->jobs;
$preferences->store();
}
$remain = $preferences->jobs - $jobs;
//can we open another session
if ($remain <= 0) {
throw new Exception(Lang::txt('You are using all (%s) your available job slots.', $jobs), 401);
}
// Check for an incoming driver file
if ($driver = Request::getVar('xml', false, 'post', 'none', 2)) {
// Build a path to where the driver file will go through webdav
$base = DS . 'webdav' . DS . 'home';
$user = DS . $profile->get('username');
$data = DS . 'data';
$drvr = DS . '.queued_drivers';
$inst = DS . md5(time()) . '.xml';
// Real home directory
$homeDir = $profile->get('homeDirectory');
// First, make sure webdav is there and that the necessary folders are there
if (!\Filesystem::exists($base)) {
throw new Exception(Lang::txt('Home directories are unavailable'), 500);
}
// Now see if the user has a home directory yet
if (!\Filesystem::exists($homeDir)) {
// Try to create their home directory
require_once dirname(dirname(__DIR__)) . DS . 'helpers' . DS . 'utils.php';
if (!\Components\Tools\Helpers\Utils::createHomeDirectory($profile->get('username'))) {
throw new Exception(Lang::txt('Failed to create user home directory'), 500);
}
}
// Check for, and create if needed a session data directory
if (!\Filesystem::exists($base . $user . $data) && !\Filesystem::makeDirectory($base . $user . $data, 0700)) {
throw new Exception(Lang::txt('Failed to create data directory'), 500);
}
// Check for, and create if needed a queued drivers directory
if (!\Filesystem::exists($base . $user . $data . $drvr) && !\Filesystem::makeDirectory($base . $user . $data . $drvr, 0700)) {
throw new Exception(Lang::txt('Failed to create drivers directory'), 500);
}
// Write the driver file out
if (!\Filesystem::write($base . $user . $data . $drvr . $inst, $driver)) {
throw new Exception(Lang::txt('Failed to create driver file'), 500);
}
} else {
throw new Exception(Lang::txt('No driver file provided'), 404);
}
// Now build params path that will be included with tool execution
// We know from the checks above that this directory already exists
$params = 'file(execute):' . $homeDir . DS . 'data' . DS . '.queued_drivers' . $inst;
$encoded = ' params=' . rawurlencode($params) . ' ';
$command = 'start user='******'username') . " ip={$app->ip} app={$app->name} version={$app->version}" . $encoded;
$status = \Components\Tools\Helpers\Utils::middleware($command, $output);
if (!$status) {
throw new Exception(Lang::txt('Tool invocation failed'), 500);
}
$this->send(array('success' => true, 'session' => $output->session));
}
