/**
* Request a ping from a journal.
*
* @todo Use the Ping service
*
* @param Journal $journal
*
* @return bool
*/
protected function pingJournal(Journal $journal)
{
$client = new Client();
try {
$response = $client->get($journal->getGatewayUrl());
if ($response->getStatusCode() !== 200) {
return false;
}
$xml = $response->xml();
$element = $xml->xpath('//terms')[0];
if ($element && isset($element['termsAccepted']) && (string) $element['termsAccepted'] === 'yes') {
return true;
}
} catch (RequestException $e) {
$this->logger->error("Cannot ping {$journal->getUrl()}: {$e->getMessage()}");
if ($e->hasResponse()) {
$this->logger->error($e->getResponse()->getStatusCode() . ' ' . $this->logger->error($e->getResponse()->getReasonPhrase()));
}
} catch (XmlParseException $e) {
$this->logger->error("Cannot parse journal ping response {$journal->getUrl()}: {$e->getMessage()}");
}
return false;
}
/**
* Ping a journal, check on it's health, etc.
*
* @param Journal $journal
*
* @return PingResult
*
* @throws Exception
*/
public function ping(Journal $journal)
{
$this->logger->notice("Pinging {$journal}");
$url = $journal->getGatewayUrl();
$client = $this->getClient();
try {
$response = $client->get($url, array('allow_redirects' => false, 'headers' => array('User-Agent' => 'PkpPlnBot 1.0; http://pkp.sfu.ca', 'Accept' => 'application/xml,text/xml,*/*;q=0.1')));
$pingResponse = new PingResult($response);
if ($pingResponse->getHttpStatus() === 200) {
$journal->setContacted(new DateTime());
$journal->setTitle($pingResponse->getJournalTitle('(unknown title)'));
$journal->setOjsVersion($pingResponse->getOjsRelease());
$journal->setTermsAccepted($pingResponse->areTermsAccepted() === 'yes');
} else {
$journal->setStatus('ping-error');
}
$this->em->flush($journal);
return $pingResponse;
} catch (RequestException $e) {
$journal->setStatus('ping-error');
$this->em->flush($journal);
if ($e->hasResponse()) {
return new PingResult($e->getResponse());
}
throw $e;
} catch (XmlParseException $e) {
$journal->setStatus('ping-error');
$this->em->flush($journal);
return new PingResult($e->getResponse());
} catch (Exception $e) {
$journal->setStatus('ping-error');
$this->em->flush($journal);
throw $e;
}
}
