icingaweb2-module-director/library/Director/RestApi/RequestHandler.php

87 lines
2.4 KiB
PHP

<?php
namespace Icinga\Module\Director\RestApi;
use Exception;
use gipfl\Json\JsonString;
use Icinga\Module\Director\Db;
use Icinga\Web\Request;
use Icinga\Web\Response;
abstract class RequestHandler
{
/** @var Request */
protected $request;
/** @var Response */
protected $response;
/** @var Db */
protected $db;
public function __construct(Request $request, Response $response, Db $db)
{
$this->request = $request;
$this->response = $response;
$this->db = $db;
}
abstract protected function processApiRequest();
public function dispatch()
{
$this->processApiRequest();
}
public function sendJson($object)
{
$this->response->setHeader('Content-Type', 'application/json', true);
$this->response->sendHeaders();
echo JsonString::encode($object, JSON_PRETTY_PRINT) . "\n";
}
public function sendJsonError($error, $code = null)
{
$response = $this->response;
if ($code === null) {
if ($response->getHttpResponseCode() === 200) {
$response->setHttpResponseCode(500);
}
} else {
$response->setHttpResponseCode((int) $code);
}
if ($error instanceof Exception) {
$message = $error->getMessage();
} else {
$message = $error;
}
$response->sendHeaders();
$result = ['error' => $message];
if ($this->request->getUrl()->getParam('showStacktrace')) {
$result['trace'] = $error->getTraceAsString();
}
$this->sendJson((object) $result);
}
// TODO: just return json_last_error_msg() for PHP >= 5.5.0
protected function getLastJsonError()
{
switch (json_last_error()) {
case JSON_ERROR_DEPTH:
return 'The maximum stack depth has been exceeded';
case JSON_ERROR_CTRL_CHAR:
return 'Control character error, possibly incorrectly encoded';
case JSON_ERROR_STATE_MISMATCH:
return 'Invalid or malformed JSON';
case JSON_ERROR_SYNTAX:
return 'Syntax error';
case JSON_ERROR_UTF8:
return 'Malformed UTF-8 characters, possibly incorrectly encoded';
default:
return 'An error occured when parsing a JSON string';
}
}
}