Guzzle5AuthHandler.php
| 1 | <?php |
| 2 | |
| 3 | namespace Google\AuthHandler; |
| 4 | |
| 5 | use Google\Auth\CredentialsLoader; |
| 6 | use Google\Auth\FetchAuthTokenCache; |
| 7 | use Google\Auth\HttpHandler\HttpHandlerFactory; |
| 8 | use Google\Auth\Subscriber\AuthTokenSubscriber; |
| 9 | use Google\Auth\Subscriber\ScopedAccessTokenSubscriber; |
| 10 | use Google\Auth\Subscriber\SimpleSubscriber; |
| 11 | use GuzzleHttp\Client; |
| 12 | use GuzzleHttp\ClientInterface; |
| 13 | use Psr\Cache\CacheItemPoolInterface; |
| 14 | |
| 15 | /** |
| 16 | * This supports Guzzle 5 |
| 17 | */ |
| 18 | class Guzzle5AuthHandler |
| 19 | { |
| 20 | protected $cache; |
| 21 | protected $cacheConfig; |
| 22 | |
| 23 | public function __construct(CacheItemPoolInterface $cache = null, array $cacheConfig = []) |
| 24 | { |
| 25 | $this->cache = $cache; |
| 26 | $this->cacheConfig = $cacheConfig; |
| 27 | } |
| 28 | |
| 29 | public function attachCredentials( |
| 30 | ClientInterface $http, |
| 31 | CredentialsLoader $credentials, |
| 32 | callable $tokenCallback = null |
| 33 | ) { |
| 34 | // use the provided cache |
| 35 | if ($this->cache) { |
| 36 | $credentials = new FetchAuthTokenCache( |
| 37 | $credentials, |
| 38 | $this->cacheConfig, |
| 39 | $this->cache |
| 40 | ); |
| 41 | } |
| 42 | |
| 43 | return $this->attachCredentialsCache($http, $credentials, $tokenCallback); |
| 44 | } |
| 45 | |
| 46 | public function attachCredentialsCache( |
| 47 | ClientInterface $http, |
| 48 | FetchAuthTokenCache $credentials, |
| 49 | callable $tokenCallback = null |
| 50 | ) { |
| 51 | // if we end up needing to make an HTTP request to retrieve credentials, we |
| 52 | // can use our existing one, but we need to throw exceptions so the error |
| 53 | // bubbles up. |
| 54 | $authHttp = $this->createAuthHttp($http); |
| 55 | $authHttpHandler = HttpHandlerFactory::build($authHttp); |
| 56 | $subscriber = new AuthTokenSubscriber( |
| 57 | $credentials, |
| 58 | $authHttpHandler, |
| 59 | $tokenCallback |
| 60 | ); |
| 61 | |
| 62 | $http->setDefaultOption('auth', 'google_auth'); |
| 63 | $http->getEmitter()->attach($subscriber); |
| 64 | |
| 65 | return $http; |
| 66 | } |
| 67 | |
| 68 | public function attachToken(ClientInterface $http, array $token, array $scopes) |
| 69 | { |
| 70 | $tokenFunc = function ($scopes) use ($token) { |
| 71 | return $token['access_token']; |
| 72 | }; |
| 73 | |
| 74 | $subscriber = new ScopedAccessTokenSubscriber( |
| 75 | $tokenFunc, |
| 76 | $scopes, |
| 77 | $this->cacheConfig, |
| 78 | $this->cache |
| 79 | ); |
| 80 | |
| 81 | $http->setDefaultOption('auth', 'scoped'); |
| 82 | $http->getEmitter()->attach($subscriber); |
| 83 | |
| 84 | return $http; |
| 85 | } |
| 86 | |
| 87 | public function attachKey(ClientInterface $http, $key) |
| 88 | { |
| 89 | $subscriber = new SimpleSubscriber(['key' => $key]); |
| 90 | |
| 91 | $http->setDefaultOption('auth', 'simple'); |
| 92 | $http->getEmitter()->attach($subscriber); |
| 93 | |
| 94 | return $http; |
| 95 | } |
| 96 | |
| 97 | private function createAuthHttp(ClientInterface $http) |
| 98 | { |
| 99 | return new Client([ |
| 100 | 'base_url' => $http->getBaseUrl(), |
| 101 | 'defaults' => [ |
| 102 | 'exceptions' => true, |
| 103 | 'verify' => $http->getDefaultOption('verify'), |
| 104 | 'proxy' => $http->getDefaultOption('proxy'), |
| 105 | ] |
| 106 | ]); |
| 107 | } |
| 108 | } |
| 109 |