/**
* Fetch and store a new App access_token from Facebook
*
* @return string the access_token
* @throws FacebookAuthException if our request was denied
* @throws FacebookApiException if some unexpected response was received from Facebook
*/
protected function fetchAccessToken()
{
$request = new GraphRequest();
$client = $request->getClient();
$request = $this->buildFacebookHttpRequest($client);
$response = $request->send();
if ($response->getStatusCode() == 200) {
parse_str($response->getBody(true), $arr);
if (isset($arr['access_token'])) {
$this->session_cached = new \DateTime();
$this->access_token = (string) $arr['access_token'];
} else {
throw new FacebookApiException('Unexpected Facebook error');
}
} else {
throw new FacebookAuthException(sprintf('Facebook error: %s', $response->getBody(true)));
}
}
/**
* Prepare a Graph HTTP request
*
* @return \Guzzle\Http\Message\RequestInterface
*/
public function getGraphHttpRequest()
{
$graph_request = new GraphRequest();
$client = $graph_request->getClient();
$request = $this->buildFacebookHttpRequest($client);
return $request;
}
