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<?php |
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/** |
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* @see https://github.com/zendframework/zend-diactoros for the canonical source repository |
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* @copyright Copyright (c) 2015-2018 Zend Technologies USA Inc. (http://www.zend.com) |
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* @license https://github.com/zendframework/zend-diactoros/blob/master/LICENSE.md New BSD License |
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*/ |
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declare(strict_types=1); |
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namespace Zend\Diactoros; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\StreamInterface; |
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use function gettype; |
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use function is_float; |
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use function is_numeric; |
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use function is_scalar; |
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use function sprintf; |
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/** |
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* HTTP response encapsulation. |
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* |
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* Responses are considered immutable; all methods that might change state are |
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* implemented such that they retain the internal state of the current |
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* message and return a new instance that contains the changed state. |
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*/ |
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class Response implements ResponseInterface |
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{ |
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use MessageTrait; |
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const MIN_STATUS_CODE_VALUE = 100; |
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const MAX_STATUS_CODE_VALUE = 599; |
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/** |
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* Map of standard HTTP status code/reason phrases |
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* |
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* @var array |
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*/ |
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private $phrases = [ |
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// INFORMATIONAL CODES |
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100 => 'Continue', |
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101 => 'Switching Protocols', |
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102 => 'Processing', |
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103 => 'Early Hints', |
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// SUCCESS CODES |
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200 => 'OK', |
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201 => 'Created', |
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202 => 'Accepted', |
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203 => 'Non-Authoritative Information', |
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204 => 'No Content', |
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205 => 'Reset Content', |
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206 => 'Partial Content', |
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207 => 'Multi-Status', |
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208 => 'Already Reported', |
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226 => 'IM Used', |
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// REDIRECTION CODES |
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300 => 'Multiple Choices', |
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301 => 'Moved Permanently', |
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302 => 'Found', |
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303 => 'See Other', |
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304 => 'Not Modified', |
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305 => 'Use Proxy', |
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306 => 'Switch Proxy', // Deprecated to 306 => '(Unused)' |
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307 => 'Temporary Redirect', |
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308 => 'Permanent Redirect', |
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// CLIENT ERROR |
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400 => 'Bad Request', |
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401 => 'Unauthorized', |
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402 => 'Payment Required', |
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403 => 'Forbidden', |
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404 => 'Not Found', |
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405 => 'Method Not Allowed', |
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406 => 'Not Acceptable', |
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407 => 'Proxy Authentication Required', |
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408 => 'Request Timeout', |
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409 => 'Conflict', |
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410 => 'Gone', |
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411 => 'Length Required', |
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412 => 'Precondition Failed', |
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413 => 'Payload Too Large', |
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414 => 'URI Too Long', |
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415 => 'Unsupported Media Type', |
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416 => 'Range Not Satisfiable', |
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417 => 'Expectation Failed', |
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418 => 'I\'m a teapot', |
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421 => 'Misdirected Request', |
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422 => 'Unprocessable Entity', |
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423 => 'Locked', |
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424 => 'Failed Dependency', |
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425 => 'Too Early', |
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426 => 'Upgrade Required', |
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428 => 'Precondition Required', |
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429 => 'Too Many Requests', |
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431 => 'Request Header Fields Too Large', |
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444 => 'Connection Closed Without Response', |
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451 => 'Unavailable For Legal Reasons', |
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// SERVER ERROR |
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499 => 'Client Closed Request', |
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500 => 'Internal Server Error', |
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501 => 'Not Implemented', |
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502 => 'Bad Gateway', |
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503 => 'Service Unavailable', |
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504 => 'Gateway Timeout', |
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505 => 'HTTP Version Not Supported', |
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506 => 'Variant Also Negotiates', |
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507 => 'Insufficient Storage', |
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508 => 'Loop Detected', |
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510 => 'Not Extended', |
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511 => 'Network Authentication Required', |
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599 => 'Network Connect Timeout Error', |
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]; |
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/** |
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* @var string |
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*/ |
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private $reasonPhrase; |
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/** |
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* @var int |
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*/ |
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private $statusCode; |
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/** |
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* @param string|resource|StreamInterface $body Stream identifier and/or actual stream resource |
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* @param int $status Status code for the response, if any. |
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* @param array $headers Headers for the response, if any. |
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* @throws Exception\InvalidArgumentException on any invalid element. |
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*/ |
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public function __construct($body = 'php://memory', int $status = 200, array $headers = []) |
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{ |
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$this->setStatusCode($status); |
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$this->stream = $this->getStream($body, 'wb+'); |
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$this->setHeaders($headers); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getStatusCode() : int |
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{ |
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return $this->statusCode; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getReasonPhrase() : string |
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{ |
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return $this->reasonPhrase; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function withStatus($code, $reasonPhrase = '') : Response |
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{ |
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$new = clone $this; |
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$new->setStatusCode($code, $reasonPhrase); |
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return $new; |
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} |
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/** |
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* Set a valid status code. |
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* |
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* @param int $code |
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* @param string $reasonPhrase |
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* @throws Exception\InvalidArgumentException on an invalid status code. |
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*/ |
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private function setStatusCode($code, $reasonPhrase = '') : void |
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{ |
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if (! is_numeric($code) |
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|| is_float($code) |
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|| $code < static::MIN_STATUS_CODE_VALUE |
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|| $code > static::MAX_STATUS_CODE_VALUE |
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) { |
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throw new Exception\InvalidArgumentException(sprintf( |
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'Invalid status code "%s"; must be an integer between %d and %d, inclusive', |
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is_scalar($code) ? $code : gettype($code), |
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static::MIN_STATUS_CODE_VALUE, |
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static::MAX_STATUS_CODE_VALUE |
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)); |
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} |
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if (! is_string($reasonPhrase)) { |
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throw new Exception\InvalidArgumentException(sprintf( |
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'Unsupported response reason phrase; must be a string, received %s', |
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is_object($reasonPhrase) ? get_class($reasonPhrase) : gettype($reasonPhrase) |
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)); |
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} |
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if ($reasonPhrase === '' && isset($this->phrases[$code])) { |
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$reasonPhrase = $this->phrases[$code]; |
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} |
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$this->reasonPhrase = $reasonPhrase; |
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$this->statusCode = (int) $code; |
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} |
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} |
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