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