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<?php
use Google\Auth\CredentialsLoader;
use Google\Auth\HttpHandler\HttpHandlerFactory;
use Google\Auth\FetchAuthTokenCache;
use Google\Auth\Middleware\AuthTokenMiddleware;
use Google\Auth\Middleware\ScopedAccessTokenMiddleware;
use Google\Auth\Middleware\SimpleMiddleware;
use GuzzleHttp\Client;
use GuzzleHttp\ClientInterface;
use Psr\Cache\CacheItemPoolInterface;
/**
* This supports Guzzle 6
*/
class Google_AuthHandler_Guzzle6AuthHandler
{
protected $cache;
protected $cacheConfig;
public function __construct(CacheItemPoolInterface $cache = null, array $cacheConfig = [])
{
$this->cache = $cache;
$this->cacheConfig = $cacheConfig;
}
public function attachCredentials(
ClientInterface $http,
CredentialsLoader $credentials,
callable $tokenCallback = null
) {
// use the provided cache
if ($this->cache) {
$credentials = new FetchAuthTokenCache(
$credentials,
$this->cacheConfig,
$this->cache
);
}
// if we end up needing to make an HTTP request to retrieve credentials, we
// can use our existing one, but we need to throw exceptions so the error
// bubbles up.
$authHttp = $this->createAuthHttp($http);
$authHttpHandler = HttpHandlerFactory::build($authHttp);
$middleware = new AuthTokenMiddleware(
$credentials,
$authHttpHandler,
$tokenCallback
);
$config = $http->getConfig();
$config['handler']->remove('google_auth');
$config['handler']->push($middleware, 'google_auth');
$config['auth'] = 'google_auth';
$http = new Client($config);
return $http;
}
public function attachToken(ClientInterface $http, array $token, array $scopes)
{
$tokenFunc = function ($scopes) use ($token) {
return $token['access_token'];
};
$middleware = new ScopedAccessTokenMiddleware(
$tokenFunc,
$scopes,
$this->cacheConfig,
$this->cache
);
$config = $http->getConfig();
$config['handler']->remove('google_auth');
$config['handler']->push($middleware, 'google_auth');
$config['auth'] = 'scoped';
$http = new Client($config);
return $http;
}
public function attachKey(ClientInterface $http, $key)
{
$middleware = new SimpleMiddleware(['key' => $key]);
$config = $http->getConfig();
$config['handler']->remove('google_auth');
$config['handler']->push($middleware, 'google_auth');
$config['auth'] = 'simple';
$http = new Client($config);
return $http;
}
private function createAuthHttp(ClientInterface $http)
{
return new Client(
[
'base_uri' => $http->getConfig('base_uri'),
'exceptions' => true,
'verify' => $http->getConfig('verify'),
'proxy' => $http->getConfig('proxy'),
]
);
}
}
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