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<?php /* * Copyright 2015 Google Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ namespace Google\Site_Kit_Dependencies\Google\Auth\Middleware; use Google\Site_Kit_Dependencies\Google\Auth\FetchAuthTokenInterface; use Google\Site_Kit_Dependencies\Google\Auth\GetQuotaProjectInterface; use Google\Site_Kit_Dependencies\Psr\Http\Message\RequestInterface; /** * ProxyAuthTokenMiddleware is a Guzzle Middleware that adds an Authorization header * provided by an object implementing FetchAuthTokenInterface. * * The FetchAuthTokenInterface#fetchAuthToken is used to obtain a hash; one of * the values value in that hash is added as the authorization header. * * Requests will be accessed with the authorization header: * * 'proxy-authorization' 'Bearer <value of auth_token>' */ class ProxyAuthTokenMiddleware { /** * @var callable */ private $httpHandler; /** * @var FetchAuthTokenInterface */ private $fetcher; /** * @var ?callable */ private $tokenCallback; /** * Creates a new ProxyAuthTokenMiddleware. * * @param FetchAuthTokenInterface $fetcher is used to fetch the auth token * @param callable $httpHandler (optional) callback which delivers psr7 request * @param callable $tokenCallback (optional) function to be called when a new token is fetched. */ public function __construct(\Google\Site_Kit_Dependencies\Google\Auth\FetchAuthTokenInterface $fetcher, callable $httpHandler = null, callable $tokenCallback = null) { $this->fetcher = $fetcher; $this->httpHandler = $httpHandler; $this->tokenCallback = $tokenCallback; } /** * Updates the request with an Authorization header when auth is 'google_auth'. * * use Google\Auth\Middleware\ProxyAuthTokenMiddleware; * use Google\Auth\OAuth2; * use GuzzleHttp\Client; * use GuzzleHttp\HandlerStack; * * $config = [..<oauth config param>.]; * $oauth2 = new OAuth2($config) * $middleware = new ProxyAuthTokenMiddleware($oauth2); * $stack = HandlerStack::create(); * $stack->push($middleware); * * $client = new Client([ * 'handler' => $stack, * 'base_uri' => 'https://www.googleapis.com/taskqueue/v1beta2/projects/', * 'proxy_auth' => 'google_auth' // authorize all requests * ]); * * $res = $client->get('myproject/taskqueues/myqueue'); * * @param callable $handler * @return \Closure */ public function __invoke(callable $handler) { return function (\Google\Site_Kit_Dependencies\Psr\Http\Message\RequestInterface $request, array $options) use($handler) { // Requests using "proxy_auth"="google_auth" will be authorized. if (!isset($options['proxy_auth']) || $options['proxy_auth'] !== 'google_auth') { return $handler($request, $options); } $request = $request->withHeader('proxy-authorization', 'Bearer ' . $this->fetchToken()); if ($quotaProject = $this->getQuotaProject()) { $request = $request->withHeader(\Google\Site_Kit_Dependencies\Google\Auth\GetQuotaProjectInterface::X_GOOG_USER_PROJECT_HEADER, $quotaProject); } return $handler($request, $options); }; } /** * Call fetcher to fetch the token. * * @return string|null */ private function fetchToken() { $auth_tokens = $this->fetcher->fetchAuthToken($this->httpHandler); if (\array_key_exists('access_token', $auth_tokens)) { // notify the callback if applicable if ($this->tokenCallback) { \call_user_func($this->tokenCallback, $this->fetcher->getCacheKey(), $auth_tokens['access_token']); } return $auth_tokens['access_token']; } if (\array_key_exists('id_token', $auth_tokens)) { return $auth_tokens['id_token']; } return null; } /** * @return string|null; */ private function getQuotaProject() { if ($this->fetcher instanceof \Google\Site_Kit_Dependencies\Google\Auth\GetQuotaProjectInterface) { return $this->fetcher->getQuotaProject(); } return null; } }
| ver. 1.4 |
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| PHP 7.4.3-4ubuntu2.24 | Генерация страницы: 0.01 |
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