Guzzle6AuthHandler.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\Middleware\AuthTokenMiddleware; |
| 9 | use Google\Auth\Middleware\ScopedAccessTokenMiddleware; |
| 10 | use Google\Auth\Middleware\SimpleMiddleware; |
| 11 | use GuzzleHttp\Client; |
| 12 | use GuzzleHttp\ClientInterface; |
| 13 | use Psr\Cache\CacheItemPoolInterface; |
| 14 | |
| 15 | /** |
| 16 | * This supports Guzzle 6 |
| 17 | */ |
| 18 | class Guzzle6AuthHandler |
| 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 | $middleware = new AuthTokenMiddleware( |
| 57 | $credentials, |
| 58 | $authHttpHandler, |
| 59 | $tokenCallback |
| 60 | ); |
| 61 | |
| 62 | $config = $http->getConfig(); |
| 63 | $config['handler']->remove('google_auth'); |
| 64 | $config['handler']->push($middleware, 'google_auth'); |
| 65 | $config['auth'] = 'google_auth'; |
| 66 | $http = new Client($config); |
| 67 | |
| 68 | return $http; |
| 69 | } |
| 70 | |
| 71 | public function attachToken(ClientInterface $http, array $token, array $scopes) |
| 72 | { |
| 73 | $tokenFunc = function ($scopes) use ($token) { |
| 74 | return $token['access_token']; |
| 75 | }; |
| 76 | |
| 77 | $middleware = new ScopedAccessTokenMiddleware( |
| 78 | $tokenFunc, |
| 79 | $scopes, |
| 80 | $this->cacheConfig, |
| 81 | $this->cache |
| 82 | ); |
| 83 | |
| 84 | $config = $http->getConfig(); |
| 85 | $config['handler']->remove('google_auth'); |
| 86 | $config['handler']->push($middleware, 'google_auth'); |
| 87 | $config['auth'] = 'scoped'; |
| 88 | $http = new Client($config); |
| 89 | |
| 90 | return $http; |
| 91 | } |
| 92 | |
| 93 | public function attachKey(ClientInterface $http, $key) |
| 94 | { |
| 95 | $middleware = new SimpleMiddleware(['key' => $key]); |
| 96 | |
| 97 | $config = $http->getConfig(); |
| 98 | $config['handler']->remove('google_auth'); |
| 99 | $config['handler']->push($middleware, 'google_auth'); |
| 100 | $config['auth'] = 'simple'; |
| 101 | $http = new Client($config); |
| 102 | |
| 103 | return $http; |
| 104 | } |
| 105 | |
| 106 | private function createAuthHttp(ClientInterface $http) |
| 107 | { |
| 108 | return new Client([ |
| 109 | 'base_uri' => $http->getConfig('base_uri'), |
| 110 | 'http_errors' => true, |
| 111 | 'verify' => $http->getConfig('verify'), |
| 112 | 'proxy' => $http->getConfig('proxy'), |
| 113 | ]); |
| 114 | } |
| 115 | } |
| 116 |