/home/desid573/public_html/tollster/vendor/google/auth/src/Credentials
Edit: /home/desid573/public_html/tollster/vendor/google/auth/src/Credentials/AppIdentityCredentials.php (4840B)
push($middleware);
*
* $client = new Client([
* 'handler' => $stack,
* 'base_uri' => 'https://www.googleapis.com/books/v1',
* 'auth' => 'google_auth'
* ]);
*
* $res = $client->get('volumes?q=Henry+David+Thoreau&country=US');
*/
class AppIdentityCredentials extends CredentialsLoader
{
/**
* Result of fetchAuthToken.
*
* @array
*/
protected $lastReceivedToken;
/**
* Array of OAuth2 scopes to be requested.
*/
private $scope;
public function __construct($scope = array())
{
$this->scope = $scope;
}
/**
* Determines if this an App Engine instance, by accessing the
* SERVER_SOFTWARE environment variable (prod) or the APPENGINE_RUNTIME
* environment variable (dev).
*
* @return true if this an App Engine Instance, false otherwise
*/
public static function onAppEngine()
{
$appEngineProduction = isset($_SERVER['SERVER_SOFTWARE']) &&
0 === strpos($_SERVER['SERVER_SOFTWARE'], 'Google App Engine');
if ($appEngineProduction) {
return true;
}
$appEngineDevAppServer = isset($_SERVER['APPENGINE_RUNTIME']) &&
$_SERVER['APPENGINE_RUNTIME'] == 'php';
if ($appEngineDevAppServer) {
return true;
}
return false;
}
/**
* Implements FetchAuthTokenInterface#fetchAuthToken.
*
* Fetches the auth tokens using the AppIdentityService if available.
* As the AppIdentityService uses protobufs to fetch the access token,
* the GuzzleHttp\ClientInterface instance passed in will not be used.
*
* @param callable $httpHandler callback which delivers psr7 request
*
* @return array the auth metadata:
* array(2) {
* ["access_token"]=>
* string(3) "xyz"
* ["expiration_time"]=>
* string(10) "1444339905"
* }
*
* @throws \Exception
*/
public function fetchAuthToken(callable $httpHandler = null)
{
if (!self::onAppEngine()) {
return array();
}
if (!class_exists('google\appengine\api\app_identity\AppIdentityService')) {
throw new \Exception(
'This class must be run in App Engine, or you must include the AppIdentityService '
. 'mock class defined in tests/mocks/AppIdentityService.php'
);
}
// AppIdentityService expects an array when multiple scopes are supplied
$scope = is_array($this->scope) ? $this->scope : explode(' ', $this->scope);
$token = AppIdentityService::getAccessToken($scope);
$this->lastReceivedToken = $token;
return $token;
}
/**
* @return array|null
*/
public function getLastReceivedToken()
{
if ($this->lastReceivedToken) {
return [
'access_token' => $this->lastReceivedToken['access_token'],
'expires_at' => $this->lastReceivedToken['expiration_time'],
];
}
return null;
}
/**
* Caching is handled by the underlying AppIdentityService, return empty string
* to prevent caching.
*
* @return string
*/
public function getCacheKey()
{
return '';
}
}