diff options
Diffstat (limited to 'Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Credentials/GCECredentials.php')
| -rw-r--r-- | Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Credentials/GCECredentials.php | 219 |
1 files changed, 0 insertions, 219 deletions
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Credentials/GCECredentials.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Credentials/GCECredentials.php deleted file mode 100644 index 4311529..0000000 --- a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Credentials/GCECredentials.php +++ /dev/null @@ -1,219 +0,0 @@ -<?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\Auth\Credentials; - -use Google\Auth\CredentialsLoader; -use Google\Auth\HttpHandler\HttpHandlerFactory; -use GuzzleHttp\Exception\ClientException; -use GuzzleHttp\Exception\RequestException; -use GuzzleHttp\Exception\ServerException; -use GuzzleHttp\Psr7\Request; - -/** - * GCECredentials supports authorization on Google Compute Engine. - * - * It can be used to authorize requests using the AuthTokenMiddleware, but will - * only succeed if being run on GCE: - * - * use Google\Auth\Credentials\GCECredentials; - * use Google\Auth\Middleware\AuthTokenMiddleware; - * use GuzzleHttp\Client; - * use GuzzleHttp\HandlerStack; - * - * $gce = new GCECredentials(); - * $middleware = new AuthTokenMiddleware($gce); - * $stack = HandlerStack::create(); - * $stack->push($middleware); - * - * $client = new Client([ - * 'handler' => $stack, - * 'base_uri' => 'https://www.googleapis.com/taskqueue/v1beta2/projects/', - * 'auth' => 'google_auth' - * ]); - * - * $res = $client->get('myproject/taskqueues/myqueue'); - */ -class GCECredentials extends CredentialsLoader -{ - const cacheKey = 'GOOGLE_AUTH_PHP_GCE'; - /** - * The metadata IP address on appengine instances. - * - * The IP is used instead of the domain 'metadata' to avoid slow responses - * when not on Compute Engine. - */ - const METADATA_IP = '169.254.169.254'; - - /** - * The metadata path of the default token. - */ - const TOKEN_URI_PATH = 'v1/instance/service-accounts/default/token'; - - /** - * The header whose presence indicates GCE presence. - */ - const FLAVOR_HEADER = 'Metadata-Flavor'; - - /** - * Flag used to ensure that the onGCE test is only done once;. - * - * @var bool - */ - private $hasCheckedOnGce = false; - - /** - * Flag that stores the value of the onGCE check. - * - * @var bool - */ - private $isOnGce = false; - - /** - * Result of fetchAuthToken. - */ - protected $lastReceivedToken; - - /** - * The full uri for accessing the default token. - * - * @return string - */ - public static function getTokenUri() - { - $base = 'http://' . self::METADATA_IP . '/computeMetadata/'; - - return $base . self::TOKEN_URI_PATH; - } - - /** - * Determines if this an App Engine Flexible instance, by accessing the - * GAE_VM environment variable. - * - * @return true if this an App Engine Flexible Instance, false otherwise - */ - public static function onAppEngineFlexible() - { - return isset($_SERVER['GAE_VM']) && 'true' === $_SERVER['GAE_VM']; - } - - /** - * Determines if this a GCE instance, by accessing the expected metadata - * host. - * If $httpHandler is not specified a the default HttpHandler is used. - * - * @param callable $httpHandler callback which delivers psr7 request - * - * @return true if this a GCEInstance false otherwise - */ - public static function onGce(callable $httpHandler = null) - { - if (is_null($httpHandler)) { - $httpHandler = HttpHandlerFactory::build(); - } - $checkUri = 'http://' . self::METADATA_IP; - try { - // Comment from: oauth2client/client.py - // - // Note: the explicit `timeout` below is a workaround. The underlying - // issue is that resolving an unknown host on some networks will take - // 20-30 seconds; making this timeout short fixes the issue, but - // could lead to false negatives in the event that we are on GCE, but - // the metadata resolution was particularly slow. The latter case is - // "unlikely". - $resp = $httpHandler( - new Request('GET', $checkUri), - ['timeout' => 0.3] - ); - - return $resp->getHeaderLine(self::FLAVOR_HEADER) == 'Google'; - } catch (ClientException $e) { - return false; - } catch (ServerException $e) { - return false; - } catch (RequestException $e) { - return false; - } - } - - /** - * Implements FetchAuthTokenInterface#fetchAuthToken. - * - * Fetches the auth tokens from the GCE metadata host if it is available. - * If $httpHandler is not specified a the default HttpHandler is used. - * - * @param callable $httpHandler callback which delivers psr7 request - * - * @return array the response - * - * @throws \Exception - */ - public function fetchAuthToken(callable $httpHandler = null) - { - if (is_null($httpHandler)) { - $httpHandler = HttpHandlerFactory::build(); - } - if (!$this->hasCheckedOnGce) { - $this->isOnGce = self::onGce($httpHandler); - } - if (!$this->isOnGce) { - return array(); // return an empty array with no access token - } - $resp = $httpHandler( - new Request( - 'GET', - self::getTokenUri(), - [self::FLAVOR_HEADER => 'Google'] - ) - ); - $body = (string)$resp->getBody(); - - // Assume it's JSON; if it's not throw an exception - if (null === $json = json_decode($body, true)) { - throw new \Exception('Invalid JSON response'); - } - - // store this so we can retrieve it later - $this->lastReceivedToken = $json; - $this->lastReceivedToken['expires_at'] = time() + $json['expires_in']; - - return $json; - } - - /** - * @return string - */ - public function getCacheKey() - { - return self::cacheKey; - } - - /** - * @return array|null - */ - public function getLastReceivedToken() - { - if ($this->lastReceivedToken) { - return [ - 'access_token' => $this->lastReceivedToken['access_token'], - 'expires_at' => $this->lastReceivedToken['expires_at'], - ]; - } - - return null; - } -} |