Google latitude returns empty location resource. Anything wrong in this Oauth flow?

Question

using examples I have this code. It works fine, authorizes the proper scopes and everything:

<?php 
ini_set("display_errors",1);
error_reporting(E_ALL);
session_start(); 
set_include_path('/home/library/'.get_include_path());
require_once 'Zend/Oauth/Consumer.php'; 

$oauthOptions = array(
    'requestScheme'        => Zend_Oauth::REQUEST_SCHEME_HEADER,
    'version'              => '1.0',
    'consumerKey'          => 'ivana.2x.to',
    'consumerSecret'       => '*********',
    'signatureMethod'      => 'HMAC-SHA1',
    'requestTokenUrl'      => 'https://www.google.com/accounts/OAuthGetRequestToken',
    'userAuthorizationUrl' => 'https://www.google.com/latitude/apps/OAuthAuthorizeToken',
    'accessTokenUrl'       => 'https://www.google.com/accounts/OAuthGetAccessToken',
    'callbackUrl'          => 'http://ivana.2x.to/geo/?show=callback',
);
$consumer = new Zend_Oauth_Consumer($oauthOptions); 
if (!isset($_SESSION['ACCESS_TOKEN_GOOGLE'])) { 
    if (!empty($_GET)) { 
        $token = $consumer->getAccessToken($_GET, unserialize($_SESSION['REQUEST_TOKEN_GOOGLE'])); 
        $_SESSION['ACCESS_TOKEN_GOOGLE'] = serialize($token); 
    } else { 
        $token = $consumer->getRequestToken(array('scope'=>'https://www.googleapis.com/auth/latitude')); 
        $_SESSION['REQUEST_TOKEN_GOOGLE'] = serialize($token); 
        $customparams = array('domain' => 'ivana.2x.to', 'granularity' => 'best', 'location' => 'current');
        $consumer->redirect($customparams ); 
        exit; 
    } 
} else { 
    $token = unserialize($_SESSION['ACCESS_TOKEN_GOOGLE']); 
    //$_SESSION['ACCESS_TOKEN_GOOGLE'] = null; // do not use, we want to keep the access token
} 
$client = $token->getHttpClient($oauthOptions); 
$client->setUri('https://www.googleapis.com/latitude/v1/currentLocation'); 
$client->setMethod(Zend_Http_Client::GET); 


$response = $client->request(); 
$body = $response->getBody();
header('Content-Type: ' . $response->getHeader('Content-Type')); 
echo $response->getBody(); 

No my problem is that i get an empty location resource. It just looks like this:

{"data":{"kind":"latitude#location"}}

The data is missing. But no error or anything.

I am logged in and my location is set and google guarantees lon and lat to be returned.

Any ideas?

Figureground

just realised doesnt really belong here. sorry. figured it out anyway, forgot the granularity parameter – Figureground

Nah, question is on-topic, but you should probably answer your own question if you solved it. Also, with OAuth, you'll get a 401 response if there's a problem with the flow. – Flynn

Answer 1

I was a little miss guided by the api description. Once i passed the granularity parameter, everything worked fine. I also had to add it with $client->addParameterGet('granularity','best'), because oterhwise the oauth signing would not work.

Figureground