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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 G. <[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 Http\Client\Common\Plugin; |
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use JacobKiers\OAuth\SignatureMethod\SignatureMethodInterface; |
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use JacobKiers\OAuth\Consumer\ConsumerInterface; |
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use JacobKiers\OAuth\Token\TokenInterface; |
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use JacobKiers\OAuth as OAuth1; |
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use Psr\Http\Message\RequestInterface; |
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/** |
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* @author Alexandru G. <[email protected]> |
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*/ |
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class OAuthPlugin implements Plugin |
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{ |
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use Plugin\VersionBridgePlugin; |
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const ENDPOINT_REQUEST_TOKEN = 'oauth/request_token'; |
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const ENDPOINT_ACCESS_TOKEN = 'oauth/access_token'; |
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const ENDPOINT_AUTHORIZE = 'oauth/authenticate'; |
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/** |
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* @var array |
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*/ |
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protected $config = array( |
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'oauth_consumer_key' => 'anon', |
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'oauth_consumer_secret' => 'anon', |
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'oauth_token' => '', |
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'oauth_token_secret' => '', |
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'oauth_signature_method' => 'HMAC-SHA1', |
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'oauth_callback' => '', |
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'oauth_verifier' => '', |
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'oauth_version' => '1.0', |
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); |
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/** |
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* @var SignatureMethodInterface |
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*/ |
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protected $signature; |
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/** |
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* @var TokenInterface |
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*/ |
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protected $token; |
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/** |
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* @var ConsumerInterface |
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*/ |
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protected $consumer; |
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public function __construct( |
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array $config, |
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SignatureMethodInterface $signature = null, |
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TokenInterface $token = null, |
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ConsumerInterface $consumer = null |
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) { |
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$this->config = array_merge($this->config, $config); |
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$this->signature = (!is_null($signature)) ? $signature : $this->getSigner(); |
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$this->token = $this->initToken($token); |
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$this->consumer = $this->initConsumer($consumer); |
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} |
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protected function doHandleRequest(RequestInterface $request, callable $next, callable $first) |
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{ |
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$params = $this->getParametersToSign($request); |
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/** @var OAuth1\Request\Request $req */ |
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$req = OAuth1\Request\Request::fromConsumerAndToken( |
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$this->consumer, |
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$this->token, |
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$request->getMethod(), |
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(string) $request->getUri(), |
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$params |
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); |
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$req->signRequest($this->signature, $this->consumer, $this->token); |
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$header = explode(':', $req->toHeader(), 2); |
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return $next($request->withHeader($header[0], $header[1])); |
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} |
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/** |
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* Include OAuth and request body parameters |
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* |
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* @access protected |
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* @param RequestInterface $request |
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* @return array |
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* |
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* @see http://oauth.net/core/1.0/#sig_norm_param |
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*/ |
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protected function getParametersToSign(RequestInterface $request) |
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{ |
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$params = $this->getOAuthParameters($request); |
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if (in_array('application/x-www-form-urlencoded', $request->getHeader('Content-Type'), true)) { |
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$params = array_merge($params, $this->getContentAsParameters($request)); |
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} |
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return $params; |
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} |
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/** |
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* Include/exclude optional parameters |
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* |
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* The exclusion/inclusion is based on current request resource |
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* |
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* @access protected |
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* @param RequestInterface $request |
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* @return array |
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*/ |
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protected function getOAuthParameters(RequestInterface $request) |
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{ |
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$params = $this->filterOAuthParameters(array('oauth_token', 'oauth_version')); |
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if ($this->isEndpointRequested(self::ENDPOINT_REQUEST_TOKEN, $request)) { |
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$params = $this->filterOAuthParameters(array('oauth_callback')); |
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} elseif ($this->isEndpointRequested(self::ENDPOINT_ACCESS_TOKEN, $request)) { |
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$params = $this->filterOAuthParameters(array('oauth_token', 'oauth_verifier')); |
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} |
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return $params; |
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} |
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/** |
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* White list based filter |
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* |
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* @access protected |
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* @param string[] $include |
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* @return array |
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*/ |
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protected function filterOAuthParameters(array $include) |
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{ |
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$final = array(); |
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foreach ($include as $key => $value) { |
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if (!empty($this->config[$value])) { |
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$final[$value] = $this->config[$value]; |
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} |
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} |
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return $final; |
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} |
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/** |
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* Transform request content to associative array |
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* |
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* @access protected |
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* @param RequestInterface $request |
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* @return array |
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*/ |
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protected function getContentAsParameters(RequestInterface $request) |
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{ |
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parse_str($request->getBody()->getContents(), $parts); |
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return $parts; |
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} |
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/** |
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* Check if specified endpoint is in current request |
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* |
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* @param string $endpoint |
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* @param RequestInterface $request |
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* @return bool |
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*/ |
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protected function isEndpointRequested($endpoint, RequestInterface $request) |
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{ |
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return strpos($request->getUri()->getPath(), $endpoint) !== false; |
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} |
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/** |
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* Bitbucket supports only HMAC-SHA1 and PlainText signatures. |
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* |
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* For better security, HMAC-SHA1 is the default one. |
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* |
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* @return \JacobKiers\OAuth\SignatureMethod\SignatureMethodInterface |
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*/ |
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protected function getSigner() |
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{ |
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$signature = 'HmacSha1'; |
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if ($this->config['oauth_signature_method'] == 'PLAINTEXT') { |
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$signature = 'PlainText'; |
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} |
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$class = '\JacobKiers\OAuth\SignatureMethod\\'.$signature; |
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return new $class(); |
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} |
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/** |
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* @access public |
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* @param TokenInterface|null $token |
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* @return TokenInterface |
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*/ |
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protected function initToken($token) |
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{ |
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return (!is_null($token)) ? |
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$token : |
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empty($this->config['oauth_token']) ? |
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new OAuth1\Token\NullToken() : |
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new OAuth1\Token\Token($this->config['oauth_token'], $this->config['oauth_token_secret']) |
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; |
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} |
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/** |
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* @access public |
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* @param ConsumerInterface|null $consumer |
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* @return ConsumerInterface |
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*/ |
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protected function initConsumer($consumer) |
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{ |
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return (!is_null($consumer)) ? |
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$consumer : |
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new OAuth1\Consumer\Consumer( |
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$this->config['oauth_consumer_key'], |
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$this->config['oauth_consumer_secret'] |
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) |
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; |
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} |
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} |
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Our type inference engine in quite powerful, but sometimes the code does not provide enough clues to go by. In these cases we request you to add a
@return
annotation as described here.