/**
* Acquire a new access token from the server.
*
* @return array|null
*/
protected function acquireAccessToken()
{
$accessToken = parent::acquireAccessToken();
if ($this->cache !== null) {
$this->cache->put($this->accessToken);
}
return $accessToken;
}
public function authenticate()
{
$params = array('code' => $this->authorizationCode, 'redirect_uri' => $this->redirectUrl, 'client_id' => $this->exactClientId, 'client_secret' => $this->exactClientSecret, 'refresh_token' => $this->refreshToken);
$oauth2Client = new Client($this->tokenUrl);
$grantType = new AuthorizationCode($oauth2Client, $params);
$refreshTokenGrantType = new RefreshToken($oauth2Client, $params);
$oauth2Plugin = new Oauth2Plugin($grantType, $refreshTokenGrantType);
if (!empty($this->refreshToken)) {
$oauth2Plugin->setRefreshToken($this->refreshToken);
}
$this->accessToken = $oauth2Plugin->getAccessToken();
$this->refreshToken = $oauth2Plugin->getRefreshToken();
$this->client()->addSubscriber($oauth2Plugin);
}