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<?php |
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/** |
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* This file is part of the bitbucket-api package. |
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* |
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* (c) Alexandru Guzinschi <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Bitbucket\API\Http\Plugin; |
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use Bitbucket\API\Exceptions\ForbiddenAccessException; |
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use Bitbucket\API\Exceptions\HttpResponseException; |
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use Bitbucket\API\Http\Client; |
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use Bitbucket\API\Http\ClientInterface; |
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use Http\Client\Common\Plugin; |
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use Psr\Http\Message\RequestInterface; |
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/** |
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* @author Alexandru Guzinschi <[email protected]> |
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*/ |
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class OAuth2Plugin implements Plugin |
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{ |
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use Plugin\VersionBridgePlugin; |
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const ENDPOINT_ACCESS_TOKEN = '/oauth2/access_token'; |
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const ENDPOINT_AUTHORIZE = '/oauth2/authorize'; |
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/** @var array */ |
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private $config = array( |
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'oauth_client_id' => 'anon', |
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'oauth_client_secret' => 'anon', |
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'token_type' => 'bearer', |
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'scopes' => array() |
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); |
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/** @var ClientInterface */ |
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private $httpClient; |
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public function __construct(array $config, ClientInterface $client = null) |
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{ |
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$this->config = array_merge($this->config, $config); |
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$this->httpClient = (null !== $client) ? $client : new Client( |
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array( |
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'base_url' => 'https://bitbucket.org', |
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'api_version' => 'site', |
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'api_versions' => array('site') |
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) |
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); |
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} |
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/** |
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* {@inheritDoc} |
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* |
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* @throws ForbiddenAccessException |
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* @throws \InvalidArgumentException |
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*/ |
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protected function doHandleRequest(RequestInterface $request, callable $next, callable $first) |
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{ |
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$oauth2Header = $request->getHeader('Authorization'); |
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foreach ($oauth2Header as $header) { |
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if (strpos($header, 'Bearer') !== false) { |
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return $next($request); |
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} |
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} |
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if (false === array_key_exists('access_token', $this->config)) { |
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try { |
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$data = $this->getAccessToken(); |
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$this->config['token_type'] = $data['token_type']; |
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$this->config['access_token'] = $data['access_token']; |
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} catch (HttpResponseException $e) { |
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throw new ForbiddenAccessException("Can't fetch access_token.", 0, $e); |
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} |
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} |
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$request = $request->withHeader( |
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'Authorization', |
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sprintf( |
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'%s %s', |
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ucfirst(strtolower($this->config['token_type'])), |
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$this->config['access_token'] |
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) |
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); |
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return $next($request); |
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} |
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/** |
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* Fetch access token with a grant_type of client_credentials |
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* |
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* @access public |
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* @return array |
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* |
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* throws \InvalidArgumentException |
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* @throws HttpResponseException |
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*/ |
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protected function getAccessToken() |
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{ |
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$response = $this->httpClient |
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->post( |
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self::ENDPOINT_ACCESS_TOKEN, |
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array( |
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'grant_type' => 'client_credentials', |
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'client_id' => $this->config['client_id'], |
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'client_secret' => $this->config['client_secret'], |
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'scope' => implode(',', $this->config['scopes']) |
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) |
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) |
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; |
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$contents = $response->getBody()->getContents(); |
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$data = json_decode($contents, true); |
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if (json_last_error() !== JSON_ERROR_NONE) { |
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$ex = new HttpResponseException('[access_token] Invalid JSON: '. json_last_error_msg()); |
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$ex |
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->setResponse($response) |
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->setRequest($this->httpClient->getLastRequest()) |
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; |
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throw $ex; |
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} |
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if (false === array_key_exists('access_token', $data)) { |
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throw new HttpResponseException('access_token is missing from response. '. $contents); |
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} |
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return $data; |
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} |
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} |
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