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<?php
/* Icinga Web 2 | (c) 2016 Icinga Development Team | GPLv2+ */
namespace Icinga\Module\Monitoring\Command\Transport;
use Icinga\Application\Hook\AuditHook;
use Icinga\Application\Logger;
use Icinga\Exception\Json\JsonDecodeException;
use Icinga\Module\Monitoring\Command\IcingaApiCommand;
use Icinga\Module\Monitoring\Command\IcingaCommand;
use Icinga\Module\Monitoring\Command\Renderer\IcingaApiCommandRenderer;
use Icinga\Module\Monitoring\Exception\CommandTransportException;
use Icinga\Module\Monitoring\Exception\CurlException;
use Icinga\Module\Monitoring\Web\Rest\RestRequest;
use Icinga\Util\Json;
/**
* Command transport over Icinga 2's REST API
*/
class ApiCommandTransport implements CommandTransportInterface
{
/**
* Transport identifier
*/
const TRANSPORT = 'api';
/**
* API host
*
* @var string
*/
protected $host;
/**
* API password
*
* @var string
*/
protected $password;
/**
* API port
*
* @var int
*/
protected $port = 5665;
/**
* Command renderer
*
* @var IcingaApiCommandRenderer
*/
protected $renderer;
/**
* API username
*
* @var string
*/
protected $username;
/**
* Create a new API command transport
*/
public function __construct()
{
$this->renderer = new IcingaApiCommandRenderer();
}
/**
* Set the name of the Icinga application object
*
* @param string $app
*
* @return $this
*/
public function setApp($app)
{
$this->renderer->setApp($app);
return $this;
}
/**
* Get the API host
*
* @return string
*/
public function getHost()
{
return $this->host;
}
/**
* Set the API host
*
* @param string $host
*
* @return $this
*/
public function setHost($host)
{
$this->host = $host;
return $this;
}
/**
* Get the API password
*
* @return string
*/
public function getPassword()
{
return $this->password;
}
/**
* Set the API password
*
* @param string $password
*
* @return $this
*/
public function setPassword($password)
{
$this->password = $password;
return $this;
}
/**
* Get the API port
*
* @return int
*/
public function getPort()
{
return $this->port;
}
/**
* Set the API port
*
* @param int $port
*
* @return $this
*/
public function setPort($port)
{
$this->port = (int) $port;
return $this;
}
/**
* Get the API username
*
* @return string
*/
public function getUsername()
{
return $this->username;
}
/**
* Set the API username
*
* @param string $username
*
* @return $this
*/
public function setUsername($username)
{
$this->username = $username;
return $this;
}
/**
* Get URI for endpoint
*
* @param string $endpoint
*
* @return string
*/
protected function getUriFor($endpoint)
{
return sprintf('https://%s:%u/v1/%s', $this->getHost(), $this->getPort(), $endpoint);
}
protected function sendCommand(IcingaApiCommand $command)
{
Logger::debug(
'Sending Icinga command "%s" to the API "%s:%u"',
$command->getEndpoint(),
$this->getHost(),
$this->getPort()
);
$data = $command->getData();
$payload = Json::encode($data);
AuditHook::logActivity(
'monitoring/command',
"Issued command {$command->getEndpoint()} with the following payload: $payload",
$data
);
try {
$response = RestRequest::post($this->getUriFor($command->getEndpoint()))
->authenticateWith($this->getUsername(), $this->getPassword())
->sendJson()
->noStrictSsl()
->setPayload($command->getData())
->send();
} catch (JsonDecodeException $e) {
throw new CommandTransportException(
'Got invalid JSON response from the Icinga 2 API: %s',
$e->getMessage()
);
}
if (isset($response['error'])) {
throw new CommandTransportException(
'Can\'t send external Icinga command: %u %s',
$response['error'],
$response['status']
);
}
$result = array_pop($response['results']);
if (! empty($result)
&& ($result['code'] < 200 || $result['code'] >= 300)
) {
throw new CommandTransportException(
'Can\'t send external Icinga command: %u %s',
$result['code'],
$result['status']
);
}
if ($command->hasNext()) {
$this->sendCommand($command->getNext());
}
}
/**
* Send the Icinga command over the Icinga 2 API
*
* @param IcingaCommand $command
* @param int|null $now
*
* @throws CommandTransportException
*/
public function send(IcingaCommand $command, $now = null)
{
$this->sendCommand($this->renderer->render($command));
}
/**
* Try to connect to the API
*
* @throws CommandTransportException In case of failure
*/
public function probe()
{
$request = RestRequest::get($this->getUriFor(null))
->authenticateWith($this->getUsername(), $this->getPassword())
->noStrictSsl();
try {
$response = $request->send();
} catch (CurlException $e) {
throw new CommandTransportException(
'Couldn\'t connect to the Icinga 2 API: %s',
$e->getMessage()
);
} catch (JsonDecodeException $e) {
throw new CommandTransportException(
'Got invalid JSON response from the Icinga 2 API: %s',
$e->getMessage()
);
}
if (isset($response['error'])) {
throw new CommandTransportException(
'Can\'t connect to the Icinga 2 API: %u %s',
$response['error'],
$response['status']
);
}
}
}
|
