/**
* Retrieves an access token for the given authorization code
* (previously generated from www.github.com on behalf of a specific user).
* The authorization code is sent to api.github.com/oauth
* and a legitimate access token is generated provided the access token
* and the user for which it was generated all match, and the user is
* either logged in to Github or has granted an offline access permission.
*
* @param string $code An authorization code.
* @param null $redirectUri
* @return mixed An access token exchanged for the authorization code, or false if an access token could not be generated.
*/
protected function getAccessTokenFromCode($code, $redirectUri = NULL)
{
if (empty($code)) {
return FALSE;
}
if ($redirectUri === NULL) {
$redirectUri = $this->getCurrentUrl();
parse_str($redirectUri->getQuery(), $query);
unset($query['code'], $query['state']);
$redirectUri->setQuery($query);
}
try {
$url = $this->config->createUrl('oauth', 'access_token', array('client_id' => $this->config->appId, 'client_secret' => $this->config->appSecret, 'code' => $code, 'redirect_uri' => $redirectUri));
$response = $this->httpClient->makeRequest(new Api\Request($url, Api\Request::POST, array(), array('Accept' => 'application/json')));
if (!$response->isOk() || !$response->isJson()) {
return FALSE;
}
$token = $response->toArray();
} catch (\Exception $e) {
// most likely that user very recently revoked authorization.
// In any event, we don't have an access token, so say so.
return FALSE;
}
return isset($token['access_token']) ? $token['access_token'] : FALSE;
}
/**
* @return string
*/
public function getUrl()
{
return (string) $this->config->createUrl('oauth', 'authorize', $this->getQueryParams());
}