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<?php
/*
** Zabbix
** Copyright (C) 2001-2019 Zabbix SIA
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**/
/**
* This class can be used for any pre-processing required for API calls made from the frontend.
*/
class CFrontendApiWrapper extends CApiWrapper {
/**
* Whether to enable debug mode.
*
* @var bool
*/
public $debug = false;
/**
* The profiler class used for profiling API calls.
*
* @var CProfiler
*/
protected $profiler;
/**
* Set the profiler class.
*
* @param CProfiler $profiler
*/
public function setProfiler(CProfiler $profiler) {
$this->profiler = $profiler;
}
/**
* Call the API method with profiling.
*
* If the API call has been unsuccessful - return only the result value.
* If the API call has been unsuccessful - add an error message and return false, instead of an array.
*
* @param string $method
* @param mixed $params
*
* @return mixed
*/
protected function callMethod($method, $params) {
API::setWrapper();
$response = parent::callMethod($method, $params);
API::setWrapper($this);
// call profiling
if ($this->debug) {
$this->profiler->profileApiCall($this->api, $method, $params, $response->data);
}
if (!$response->errorCode) {
return $response->data;
}
else {
// add an error message
$trace = $response->errorMessage;
if ($response->debug) {
$trace .= ' ['.$this->profiler->formatCallStack($response->debug).']';
}
error($trace);
return false;
}
}
/**
* Call the client method. Pass the "auth" parameter only to the methods that require it.
*
* @param string $method API method
* @param array $params API parameters
*
* @return CApiClientResponse
*/
protected function callClientMethod($method, $params) {
$auth = ($this->requiresAuthentication($this->api, $method)) ? $this->auth : null;
return $this->client->callMethod($this->api, $method, $params, $auth);
}
/**
* Returns true if calling the given method requires an authentication token.
*
* @param $api
* @param $method
*
* @return bool
*/
protected function requiresAuthentication($api, $method) {
return !(($api === 'user' && $method === 'login')
|| ($api === 'user' && $method === 'checkAuthentication')
|| ($api === 'apiinfo' && $method === 'version'));
}
}
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