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<?php
namespace Icinga\Module\Director\RestApi;
use Exception;
use Icinga\Exception\IcingaException;
use Icinga\Exception\NotFoundError;
use Icinga\Exception\ProgrammingError;
use Icinga\Module\Director\Core\CoreApi;
use Icinga\Module\Director\Data\Exporter;
use Icinga\Module\Director\DirectorObject\Lookup\ServiceFinder;
use Icinga\Module\Director\Exception\DuplicateKeyException;
use Icinga\Module\Director\Objects\IcingaHost;
use Icinga\Module\Director\Objects\IcingaObject;
use Icinga\Module\Director\Resolver\OverrideHelper;
use InvalidArgumentException;
use RuntimeException;
class IcingaObjectHandler extends RequestHandler
{
/** @var IcingaObject */
protected $object;
/** @var CoreApi */
protected $api;
public function setObject(IcingaObject $object)
{
$this->object = $object;
return $this;
}
public function setApi(CoreApi $api)
{
$this->api = $api;
return $this;
}
/**
* @return IcingaObject
* @throws ProgrammingError
*/
protected function requireObject()
{
if ($this->object === null) {
throw new ProgrammingError('Object is required');
}
return $this->object;
}
/**
* @return IcingaObject
*/
protected function loadOptionalObject()
{
return $this->object;
}
protected function requireJsonBody()
{
$data = json_decode($this->request->getRawBody());
if ($data === null) {
$this->response->setHttpResponseCode(400);
throw new IcingaException(
'Invalid JSON: %s',
$this->getLastJsonError()
);
}
return $data;
}
protected function getType()
{
return $this->request->getControllerName();
}
protected function processApiRequest()
{
try {
$this->handleApiRequest();
} catch (NotFoundError $e) {
$this->sendJsonError($e, 404);
return;
} catch (DuplicateKeyException $e) {
$this->sendJsonError($e, 422);
return;
} catch (Exception $e) {
$this->sendJsonError($e);
}
if ($this->request->getActionName() !== 'index') {
throw new NotFoundError('Not found');
}
}
protected function handleApiRequest()
{
$request = $this->request;
$db = $this->db;
// TODO: I hate doing this:
if ($this->request->getActionName() === 'ticket') {
$host = $this->requireObject();
if ($host->getResolvedProperty('has_agent') !== 'y') {
throw new NotFoundError('The host "%s" is not an agent', $host->getObjectName());
}
$this->sendJson($this->api->getTicket($host->getObjectName()));
// TODO: find a better way to shut down. Currently, this avoids
// "not found" errors:
exit;
}
switch ($request->getMethod()) {
case 'DELETE':
$object = $this->requireObject();
$object->delete();
$this->sendJson($object->toPlainObject(false, true));
break;
case 'POST':
case 'PUT':
$data = (array) $this->requireJsonBody();
$params = $this->request->getUrl()->getParams();
$allowsOverrides = $params->get('allowOverrides');
$type = $this->getType();
if ($object = $this->loadOptionalObject()) {
if ($request->getMethod() === 'POST') {
$object->setProperties($data);
} else {
$data = array_merge([
'object_type' => $object->get('object_type'),
'object_name' => $object->getObjectName()
], $data);
$object->replaceWith(IcingaObject::createByType($type, $data, $db));
}
$this->persistChanges($object);
$this->sendJson($object->toPlainObject(false, true));
} elseif ($allowsOverrides && $type === 'service') {
if ($request->getMethod() === 'PUT') {
throw new InvalidArgumentException('Overrides are not (yet) available for HTTP PUT');
}
$this->setServiceProperties($params->getRequired('host'), $params->getRequired('name'), $data);
} else {
$object = IcingaObject::createByType($type, $data, $db);
$this->persistChanges($object);
$this->sendJson($object->toPlainObject(false, true));
}
break;
case 'GET':
$object = $this->requireObject();
$exporter = new Exporter($this->db);
RestApiParams::applyParamsToExporter($exporter, $this->request, $object->getShortTableName());
$this->sendJson($exporter->export($object));
break;
default:
$request->getResponse()->setHttpResponseCode(400);
throw new IcingaException('Unsupported method ' . $request->getMethod());
}
}
protected function persistChanges(IcingaObject $object)
{
if ($object->hasBeenModified()) {
$status = $object->hasBeenLoadedFromDb() ? 200 : 201;
$object->store();
$this->response->setHttpResponseCode($status);
} else {
$this->response->setHttpResponseCode(304);
}
}
protected function setServiceProperties($hostname, $serviceName, $properties)
{
$host = IcingaHost::load($hostname, $this->db);
$service = ServiceFinder::find($host, $serviceName);
if ($service === false) {
throw new NotFoundError('Not found');
}
if ($service->requiresOverrides()) {
unset($properties['host']);
OverrideHelper::applyOverriddenVars($host, $serviceName, $properties);
$this->persistChanges($host);
$this->sendJson($host->toPlainObject(false, true));
} else {
throw new RuntimeException('Found a single service, which should have been found (and dealt with) before');
}
}
}
|
