Google+：在离线模式下获取朋友的好友列表

Question

I want to find the list of friends of Google+ user who have authorized the app without asking for authorization again.

For example: Once the user login using the Google+ to my website, I store the auth token, code, Google+ user id in the db. So once that is done I want to find the list of users friends in his circle. I managed to get the first part working and it saves the auth token, code, Google+ user id in the db. But in the second case i.e. finding the list of users friends, I again get a the screen where user have to authorize the app.

Can someone please help me in this?

Also is it possible to get all the user details in offline mode like using the auth token, code, Google+ user id which is in the db?

Initial code(login):

require_once __DIR__.'/social-api/google/Google_Client.php';
require_once __DIR__.'/social-api/google/contrib/Google_PlusService.php';

$this->sn_obj = new Google_Client($google_app_id, $google_secret_key,  $call_back_url);
$this->plus_obj = new Google_PlusService($this->sn_obj);

$this->sn_obj->setRedirectUri($call_back_url);
$this->sn_obj->setState($redirect_url);
$requestVisibleActions = array('http://schemas.google.com/AddActivity','http://schemas.google.com/ReviewActivity');
$this->sn_obj->setRequestVisibleActions($requestVisibleActions);
$this->sn_obj->setAccessType('offline');

$this->sn_obj->setScopes(array('https://www.googleapis.com/auth/userinfo.profile','https://www.googleapis.com/auth/userinfo.email','https://www.googleapis.com/auth/plus.login'));
$this->sn_obj->createAuthUrl();

In callback page:

require_once __DIR__.'/social-api/google/Google_Client.php';
require_once __DIR__.'/social-api/google/contrib/Google_PlusService.php';

$this->sn_obj = new Google_Client($google_app_id, $google_secret_key,  $call_back_url);
$this->plus_obj = new Google_PlusService($this->sn_obj);

$this->sn_obj->setRedirectUri($call_back_url);
$this->sn_obj->setState($redirect_url);
$requestVisibleActions = array('http://schemas.google.com/AddActivity','http://schemas.google.com/ReviewActivity');
$this->sn_obj->setRequestVisibleActions($requestVisibleActions);
$this->sn_obj->setAccessType('offline');

$this->sn_obj->setScopes(array('https://www.googleapis.com/auth/userinfo.profile','https://www.googleapis.com/auth/userinfo.email','https://www.googleapis.com/auth/plus.login'));

$this->sn_obj->authenticate();
$google_auth_token = $this->sn_obj->getAccessToken();
$google_user_info =  $this->plus_obj->people->get('me');

Friends listing page:

require_once __DIR__.'/social-api/google/Google_Client.php';
require_once __DIR__.'/social-api/google/contrib/Google_PlusService.php';

$this->sn_obj = new Google_Client($google_app_id, $google_secret_key,  $call_back_url);
$this->plus_obj = new Google_PlusService($this->sn_obj);
$this->sn_obj->setRedirectUri($call_back_uri);
$this->sn_obj->authenticate();
$user_info = $this->plus_obj->people->listPeople($token['oauth_uid'],'visible');

Answer 1

Finally managed to get get it done

On Friends listing page:

require_once __DIR__.'/social-api/google/Google_Client.php';
require_once __DIR__.'/social-api/google/contrib/Google_PlusService.php';

$this->sn_obj = new Google_Client($google_app_id, $google_secret_key,  $call_back_url);
$this->plus_obj = new Google_PlusService($this->sn_obj);
if(!$this->sn_obj->getAccessToken()){
    $this->sn_obj->refreshToken($refresh_token_from_db);
}
$google_auth_token = $this->sn_obj->getAccessToken();
$google_auth_token_arr = json_decode($google_auth_token,true);

$url = 'https://www.googleapis.com/plus/v1/people/'.$uid_from_db.'/people/visible?access_token='.$google_auth_token_arr['access_token'].'&format=json';

$c = curl_init($url);
curl_setopt($c, CURLINFO_HEADER_OUT, 1);
curl_setopt($c, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_HEADER, 0);

$contents = curl_exec($c);
curl_close($c);
$user_info = json_decode($contents, true);