[f9c482b] | 1 | <?php
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| 2 | /*
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| 3 | * Copyright 2015 Google Inc.
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| 4 | *
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| 5 | * Licensed under the Apache License, Version 2.0 (the "License");
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| 6 | * you may not use this file except in compliance with the License.
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| 7 | * You may obtain a copy of the License at
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| 8 | *
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| 9 | * http://www.apache.org/licenses/LICENSE-2.0
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| 10 | *
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| 11 | * Unless required by applicable law or agreed to in writing, software
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| 12 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 14 | * See the License for the specific language governing permissions and
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| 15 | * limitations under the License.
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| 16 | */
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| 17 |
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| 18 | namespace Google\Auth\Middleware;
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| 19 |
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| 20 | use GuzzleHttp\Psr7\Query;
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| 21 | use Psr\Http\Message\RequestInterface;
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| 22 |
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| 23 | /**
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| 24 | * SimpleMiddleware is a Guzzle Middleware that implements Google's Simple API
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| 25 | * access.
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| 26 | *
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| 27 | * Requests are accessed using the Simple API access developer key.
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| 28 | */
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| 29 | class SimpleMiddleware
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| 30 | {
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| 31 | /**
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| 32 | * @var array<mixed>
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| 33 | */
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| 34 | private $config;
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| 35 |
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| 36 | /**
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| 37 | * Create a new Simple plugin.
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| 38 | *
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| 39 | * The configuration array expects one option
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| 40 | * - key: required, otherwise InvalidArgumentException is thrown
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| 41 | *
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| 42 | * @param array<mixed> $config Configuration array
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| 43 | */
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| 44 | public function __construct(array $config)
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| 45 | {
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| 46 | if (!isset($config['key'])) {
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| 47 | throw new \InvalidArgumentException('requires a key to have been set');
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| 48 | }
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| 49 |
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| 50 | $this->config = array_merge(['key' => null], $config);
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| 51 | }
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| 52 |
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| 53 | /**
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| 54 | * Updates the request query with the developer key if auth is set to simple.
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| 55 | *
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| 56 | * use Google\Auth\Middleware\SimpleMiddleware;
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| 57 | * use GuzzleHttp\Client;
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| 58 | * use GuzzleHttp\HandlerStack;
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| 59 | *
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| 60 | * $my_key = 'is not the same as yours';
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| 61 | * $middleware = new SimpleMiddleware(['key' => $my_key]);
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| 62 | * $stack = HandlerStack::create();
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| 63 | * $stack->push($middleware);
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| 64 | *
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| 65 | * $client = new Client([
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| 66 | * 'handler' => $stack,
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| 67 | * 'base_uri' => 'https://www.googleapis.com/discovery/v1/',
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| 68 | * 'auth' => 'simple'
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| 69 | * ]);
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| 70 | *
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| 71 | * $res = $client->get('drive/v2/rest');
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| 72 | *
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| 73 | * @param callable $handler
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| 74 | * @return \Closure
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| 75 | */
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| 76 | public function __invoke(callable $handler)
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| 77 | {
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| 78 | return function (RequestInterface $request, array $options) use ($handler) {
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| 79 | // Requests using "auth"="scoped" will be authorized.
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| 80 | if (!isset($options['auth']) || $options['auth'] !== 'simple') {
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| 81 | return $handler($request, $options);
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| 82 | }
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| 83 |
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| 84 | $query = Query::parse($request->getUri()->getQuery());
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| 85 | $params = array_merge($query, $this->config);
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| 86 | $uri = $request->getUri()->withQuery(Query::build($params));
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| 87 | $request = $request->withUri($uri);
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| 88 |
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| 89 | return $handler($request, $options);
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| 90 | };
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| 91 | }
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| 92 | }
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