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<?php |
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/** |
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* @author Alex Bilbie <[email protected]> |
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* @copyright Copyright (c) Alex Bilbie |
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* @license http://mit-license.org/ |
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* |
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* @link https://github.com/thephpleague/oauth2-server |
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*/ |
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namespace League\OAuth2\Server\Exception; |
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use Psr\Http\Message\ResponseInterface; |
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class OAuthServerException extends \Exception |
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{ |
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/** |
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* @var int |
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*/ |
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private $httpStatusCode; |
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/** |
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* @var string |
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*/ |
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private $errorType; |
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/** |
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* @var null|string |
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*/ |
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private $hint; |
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/** |
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* @var null|string |
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*/ |
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private $redirectUri; |
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/** |
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* Throw a new exception. |
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* |
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* @param string $message Error message |
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* @param int $code Error code |
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* @param string $errorType Error type |
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* @param int $httpStatusCode HTTP status code to send (default = 400) |
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* @param null|string $hint A helper hint |
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* @param null|string $redirectUri A HTTP URI to redirect the user back to |
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*/ |
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public function __construct($message, $code, $errorType, $httpStatusCode = 400, $hint = null, $redirectUri = null) |
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{ |
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parent::__construct($message, $code); |
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$this->httpStatusCode = $httpStatusCode; |
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$this->errorType = $errorType; |
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$this->hint = $hint; |
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$this->redirectUri = $redirectUri; |
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} |
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/** |
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* Unsupported grant type error. |
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* |
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* @return static |
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*/ |
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public static function unsupportedGrantType() |
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{ |
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$errorMessage = 'The authorization grant type is not supported by the authorization server.'; |
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$hint = 'Check the `grant_type` parameter'; |
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return new static($errorMessage, 2, 'unsupported_grant_type', 400, $hint); |
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} |
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/** |
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* Invalid request error. |
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* |
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* @param string $parameter The invalid parameter |
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* @param string|null $hint |
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* |
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* @return static |
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*/ |
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public static function invalidRequest($parameter, $hint = null) |
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{ |
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$errorMessage = 'The request is missing a required parameter, includes an invalid parameter value, ' . |
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'includes a parameter more than once, or is otherwise malformed.'; |
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$hint = ($hint === null) ? sprintf('Check the `%s` parameter', $parameter) : $hint; |
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return new static($errorMessage, 3, 'invalid_request', 400, $hint); |
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} |
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/** |
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* Invalid client error. |
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* |
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* @return static |
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*/ |
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public static function invalidClient() |
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{ |
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$errorMessage = 'Client authentication failed'; |
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return new static($errorMessage, 4, 'invalid_client', 401); |
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} |
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/** |
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* Invalid scope error. |
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* |
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* @param string $scope The bad scope |
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* @param null|string $redirectUri A HTTP URI to redirect the user back to |
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* |
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* @return static |
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*/ |
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public static function invalidScope($scope, $redirectUri = null) |
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{ |
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$errorMessage = 'The requested scope is invalid, unknown, or malformed'; |
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$hint = sprintf('Check the `%s` scope', $scope); |
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return new static($errorMessage, 5, 'invalid_scope', 400, $hint, $redirectUri); |
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} |
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/** |
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* Invalid credentials error. |
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* |
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* @return static |
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*/ |
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public static function invalidCredentials() |
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{ |
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return new static('The user credentials were incorrect.', 6, 'invalid_credentials', 401); |
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} |
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/** |
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* Server error. |
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* |
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* @param $hint |
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* |
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* @return static |
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* |
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* @codeCoverageIgnore |
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*/ |
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public static function serverError($hint) |
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{ |
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return new static( |
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'The authorization server encountered an unexpected condition which prevented it from fulfilling' |
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. ' the request: ' . $hint, |
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7, |
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'server_error', |
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500 |
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); |
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} |
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/** |
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* Invalid refresh token. |
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* |
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* @param string|null $hint |
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* |
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* @return static |
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*/ |
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public static function invalidRefreshToken($hint = null) |
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{ |
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return new static('The refresh token is invalid.', 8, 'invalid_request', 400, $hint); |
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} |
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/** |
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* Access denied. |
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* |
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* @param string|null $hint |
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* @param string|null $redirectUri |
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* |
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* @return static |
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*/ |
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public static function accessDenied($hint = null, $redirectUri = null) |
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{ |
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return new static( |
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'The resource owner or authorization server denied the request.', |
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9, |
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'access_denied', |
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401, |
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$hint, |
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$redirectUri |
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); |
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} |
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/** |
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* @return string |
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*/ |
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public function getErrorType() |
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{ |
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return $this->errorType; |
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} |
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/** |
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* Generate a HTTP response. |
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* |
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* @param \Psr\Http\Message\ResponseInterface $response |
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* @param bool $useFragment True if errors should be in the URI fragment instead of |
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* query string |
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* |
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* @return \Psr\Http\Message\ResponseInterface |
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*/ |
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public function generateHttpResponse(ResponseInterface $response, $useFragment = false) |
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{ |
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$headers = $this->getHttpHeaders(); |
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$payload = [ |
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'error' => $this->getErrorType(), |
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'message' => $this->getMessage(), |
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]; |
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if ($this->hint !== null) { |
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$payload['hint'] = $this->hint; |
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} |
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if ($this->redirectUri !== null) { |
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if ($useFragment === true) { |
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$this->redirectUri .= (strstr($this->redirectUri, '#') === false) ? '#' : '&'; |
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} else { |
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$this->redirectUri .= (strstr($this->redirectUri, '?') === false) ? '?' : '&'; |
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} |
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return $response->withStatus(302)->withHeader('Location', $this->redirectUri . http_build_query($payload)); |
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} |
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foreach ($headers as $header => $content) { |
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$response = $response->withHeader($header, $content); |
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} |
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$response->getBody()->write(json_encode($payload)); |
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return $response->withStatus($this->getHttpStatusCode()); |
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} |
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/** |
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* Get all headers that have to be send with the error response. |
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* |
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* @return array Array with header values |
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*/ |
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public function getHttpHeaders() |
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{ |
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$headers = [ |
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'Content-type' => 'application/json', |
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]; |
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// Add "WWW-Authenticate" header |
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// |
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// RFC 6749, section 5.2.: |
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// "If the client attempted to authenticate via the 'Authorization' |
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// request header field, the authorization server MUST |
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// respond with an HTTP 401 (Unauthorized) status code and |
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// include the "WWW-Authenticate" response header field |
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// matching the authentication scheme used by the client. |
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// @codeCoverageIgnoreStart |
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if ($this->errorType === 'invalid_client') { |
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$authScheme = 'Basic'; |
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if (array_key_exists('HTTP_AUTHORIZATION', $_SERVER) !== false |
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&& strpos($_SERVER['HTTP_AUTHORIZATION'], 'Bearer') === 0 |
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) { |
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$authScheme = 'Bearer'; |
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} |
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$headers[] = 'WWW-Authenticate: ' . $authScheme . ' realm="OAuth"'; |
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} |
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// @codeCoverageIgnoreEnd |
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return $headers; |
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} |
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/** |
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* Returns the HTTP status code to send when the exceptions is output. |
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* |
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* @return int |
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*/ |
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public function getHttpStatusCode() |
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{ |
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return $this->httpStatusCode; |
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} |
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/** |
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* @return null|string |
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*/ |
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public function getHint() |
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{ |
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return $this->hint; |
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} |
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} |
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Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable: