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<?php |
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namespace Guzzle\Http\Message; |
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use Guzzle\Common\Version; |
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use Guzzle\Common\ToArrayInterface; |
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use Guzzle\Common\Exception\RuntimeException; |
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use Guzzle\Http\EntityBodyInterface; |
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use Guzzle\Http\EntityBody; |
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use Guzzle\Http\Exception\BadResponseException; |
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use Guzzle\Http\RedirectPlugin; |
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use Guzzle\Parser\ParserRegistry; |
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/** |
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* Guzzle HTTP response object |
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*/ |
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class Response extends AbstractMessage implements \Serializable |
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{ |
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/** |
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* @var array Array of reason phrases and their corresponding status codes |
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*/ |
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private static $statusTexts = array( |
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100 => 'Continue', |
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101 => 'Switching Protocols', |
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102 => 'Processing', |
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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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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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307 => 'Temporary Redirect', |
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308 => 'Permanent Redirect', |
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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 => 'Request Entity Too Large', |
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414 => 'Request-URI Too Long', |
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415 => 'Unsupported Media Type', |
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416 => 'Requested Range Not Satisfiable', |
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417 => 'Expectation Failed', |
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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 => 'Reserved for WebDAV advanced collections expired proposal', |
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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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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 (Experimental)', |
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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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); |
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/** @var EntityBodyInterface The response body */ |
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protected $body; |
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/** @var string The reason phrase of the response (human readable code) */ |
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protected $reasonPhrase; |
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/** @var string The status code of the response */ |
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protected $statusCode; |
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/** @var array Information about the request */ |
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protected $info = array(); |
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/** @var string The effective URL that returned this response */ |
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protected $effectiveUrl; |
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/** @var array Cacheable response codes (see RFC 2616:13.4) */ |
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protected static $cacheResponseCodes = array(200, 203, 206, 300, 301, 410); |
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/** |
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* Create a new Response based on a raw response message |
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* |
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* @param string $message Response message |
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* |
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* @return self|bool Returns false on error |
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*/ |
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public static function fromMessage($message) |
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{ |
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$data = ParserRegistry::getInstance()->getParser('message')->parseResponse($message); |
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if (!$data) { |
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return false; |
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} |
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$response = new static($data['code'], $data['headers'], $data['body']); |
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$response->setProtocol($data['protocol'], $data['version']) |
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->setStatus($data['code'], $data['reason_phrase']); |
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// Set the appropriate Content-Length if the one set is inaccurate (e.g. setting to X) |
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$contentLength = (string) $response->getHeader('Content-Length'); |
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$actualLength = strlen($data['body']); |
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if (strlen($data['body']) > 0 && $contentLength != $actualLength) { |
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$response->setHeader('Content-Length', $actualLength); |
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} |
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return $response; |
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} |
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/** |
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* Construct the response |
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* |
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* @param string $statusCode The response status code (e.g. 200, 404, etc) |
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* @param ToArrayInterface|array $headers The response headers |
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* @param string|resource|EntityBodyInterface $body The body of the response |
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* |
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* @throws BadResponseException if an invalid response code is given |
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*/ |
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public function __construct($statusCode, $headers = null, $body = null) |
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{ |
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parent::__construct(); |
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$this->setStatus($statusCode); |
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$this->body = EntityBody::factory($body !== null ? $body : ''); |
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if ($headers) { |
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if (is_array($headers)) { |
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$this->setHeaders($headers); |
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} elseif ($headers instanceof ToArrayInterface) { |
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$this->setHeaders($headers->toArray()); |
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} else { |
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throw new BadResponseException('Invalid headers argument received'); |
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} |
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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 __toString() |
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{ |
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return $this->getMessage(); |
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} |
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public function serialize() |
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{ |
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return json_encode(array( |
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'status' => $this->statusCode, |
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'body' => (string) $this->body, |
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'headers' => $this->headers->toArray() |
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)); |
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} |
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public function unserialize($serialize) |
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{ |
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$data = json_decode($serialize, true); |
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$this->__construct($data['status'], $data['headers'], $data['body']); |
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} |
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/** |
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* Get the response entity body |
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* |
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* @param bool $asString Set to TRUE to return a string of the body rather than a full body object |
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* |
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* @return EntityBodyInterface|string |
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*/ |
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public function getBody($asString = false) |
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{ |
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return $asString ? (string) $this->body : $this->body; |
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} |
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/** |
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* Set the response entity body |
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* |
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* @param EntityBodyInterface|string $body Body to set |
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* |
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* @return self |
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*/ |
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public function setBody($body) |
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{ |
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$this->body = EntityBody::factory($body); |
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return $this; |
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} |
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/** |
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* Set the protocol and protocol version of the response |
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* |
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* @param string $protocol Response protocol |
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* @param string $version Protocol version |
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* |
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* @return self |
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*/ |
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public function setProtocol($protocol, $version) |
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{ |
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$this->protocol = $protocol; |
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$this->protocolVersion = $version; |
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return $this; |
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} |
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/** |
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* Get the protocol used for the response (e.g. HTTP) |
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* |
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* @return string |
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*/ |
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public function getProtocol() |
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{ |
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return $this->protocol; |
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} |
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/** |
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* Get the HTTP protocol version |
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* |
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* @return string |
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*/ |
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public function getProtocolVersion() |
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{ |
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return $this->protocolVersion; |
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} |
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/** |
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* Get a cURL transfer information |
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* |
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* @param string $key A single statistic to check |
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* |
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* @return array|string|null Returns all stats if no key is set, a single stat if a key is set, or null if a key |
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* is set and not found |
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* @link http://www.php.net/manual/en/function.curl-getinfo.php |
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*/ |
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public function getInfo($key = null) |
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{ |
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if ($key === null) { |
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return $this->info; |
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} elseif (array_key_exists($key, $this->info)) { |
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return $this->info[$key]; |
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} else { |
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return null; |
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} |
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} |
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/** |
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* Set the transfer information |
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* |
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* @param array $info Array of cURL transfer stats |
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* |
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* @return self |
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*/ |
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public function setInfo(array $info) |
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{ |
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$this->info = $info; |
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return $this; |
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} |
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/** |
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* Set the response status |
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* |
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* @param int $statusCode Response status code to set |
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* @param string $reasonPhrase Response reason phrase |
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* |
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* @return self |
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* @throws BadResponseException when an invalid response code is received |
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*/ |
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public function setStatus($statusCode, $reasonPhrase = '') |
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{ |
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$this->statusCode = (int) $statusCode; |
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if (!$reasonPhrase && isset(self::$statusTexts[$this->statusCode])) { |
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$this->reasonPhrase = self::$statusTexts[$this->statusCode]; |
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} else { |
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$this->reasonPhrase = $reasonPhrase; |
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} |
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293
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return $this; |
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} |
295
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296
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/** |
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* Get the response status code |
298
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* |
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* @return integer |
300
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*/ |
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public function getStatusCode() |
302
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{ |
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return $this->statusCode; |
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} |
305
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306
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/** |
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* Get the entire response as a string |
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* |
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* @return string |
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*/ |
311
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public function getMessage() |
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{ |
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$message = $this->getRawHeaders(); |
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315
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// Only include the body in the message if the size is < 2MB |
316
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$size = $this->body->getSize(); |
317
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if ($size < 2097152) { |
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$message .= (string) $this->body; |
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} |
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321
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return $message; |
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} |
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324
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/** |
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* Get the the raw message headers as a string |
326
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* |
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* @return string |
328
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*/ |
329
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public function getRawHeaders() |
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{ |
331
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$headers = 'HTTP/1.1 ' . $this->statusCode . ' ' . $this->reasonPhrase . "\r\n"; |
332
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$lines = $this->getHeaderLines(); |
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if (!empty($lines)) { |
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$headers .= implode("\r\n", $lines) . "\r\n"; |
335
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} |
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337
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return $headers . "\r\n"; |
338
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} |
339
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340
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/** |
341
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* Get the response reason phrase- a human readable version of the numeric |
342
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* status code |
343
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* |
344
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* @return string |
345
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*/ |
346
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public function getReasonPhrase() |
347
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{ |
348
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return $this->reasonPhrase; |
349
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} |
350
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351
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/** |
352
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* Get the Accept-Ranges HTTP header |
353
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* |
354
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* @return string Returns what partial content range types this server supports. |
355
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*/ |
356
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public function getAcceptRanges() |
357
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{ |
358
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return (string) $this->getHeader('Accept-Ranges'); |
359
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} |
360
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361
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/** |
362
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* Calculate the age of the response |
363
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* |
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* @return integer |
365
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*/ |
366
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public function calculateAge() |
367
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{ |
368
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$age = $this->getHeader('Age'); |
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370
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if ($age === null && $this->getDate()) { |
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371
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$age = time() - strtotime($this->getDate()); |
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} |
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374
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return $age === null ? null : (int) (string) $age; |
375
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} |
376
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377
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/** |
378
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* Get the Age HTTP header |
379
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* |
380
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* @return integer|null Returns the age the object has been in a proxy cache in seconds. |
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*/ |
382
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public function getAge() |
383
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{ |
384
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return (string) $this->getHeader('Age'); |
385
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} |
386
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387
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/** |
388
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* Get the Allow HTTP header |
389
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* |
390
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* @return string|null Returns valid actions for a specified resource. To be used for a 405 Method not allowed. |
391
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*/ |
392
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public function getAllow() |
393
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{ |
394
|
|
|
return (string) $this->getHeader('Allow'); |
395
|
|
|
} |
396
|
|
|
|
397
|
|
|
/** |
398
|
|
|
* Check if an HTTP method is allowed by checking the Allow response header |
399
|
|
|
* |
400
|
|
|
* @param string $method Method to check |
401
|
|
|
* |
402
|
|
|
* @return bool |
403
|
|
|
*/ |
404
|
|
|
public function isMethodAllowed($method) |
405
|
|
|
{ |
406
|
|
|
$allow = $this->getHeader('Allow'); |
407
|
|
|
if ($allow) { |
408
|
|
|
foreach (explode(',', $allow) as $allowable) { |
409
|
|
|
if (!strcasecmp(trim($allowable), $method)) { |
410
|
|
|
return true; |
411
|
|
|
} |
412
|
|
|
} |
413
|
|
|
} |
414
|
|
|
|
415
|
|
|
return false; |
416
|
|
|
} |
417
|
|
|
|
418
|
|
|
/** |
419
|
|
|
* Get the Cache-Control HTTP header |
420
|
|
|
* |
421
|
|
|
* @return string |
422
|
|
|
*/ |
423
|
|
|
public function getCacheControl() |
424
|
|
|
{ |
425
|
|
|
return (string) $this->getHeader('Cache-Control'); |
426
|
|
|
} |
427
|
|
|
|
428
|
|
|
/** |
429
|
|
|
* Get the Connection HTTP header |
430
|
|
|
* |
431
|
|
|
* @return string |
432
|
|
|
*/ |
433
|
|
|
public function getConnection() |
434
|
|
|
{ |
435
|
|
|
return (string) $this->getHeader('Connection'); |
436
|
|
|
} |
437
|
|
|
|
438
|
|
|
/** |
439
|
|
|
* Get the Content-Encoding HTTP header |
440
|
|
|
* |
441
|
|
|
* @return string|null |
442
|
|
|
*/ |
443
|
|
|
public function getContentEncoding() |
444
|
|
|
{ |
445
|
|
|
return (string) $this->getHeader('Content-Encoding'); |
446
|
|
|
} |
447
|
|
|
|
448
|
|
|
/** |
449
|
|
|
* Get the Content-Language HTTP header |
450
|
|
|
* |
451
|
|
|
* @return string|null Returns the language the content is in. |
452
|
|
|
*/ |
453
|
|
|
public function getContentLanguage() |
454
|
|
|
{ |
455
|
|
|
return (string) $this->getHeader('Content-Language'); |
456
|
|
|
} |
457
|
|
|
|
458
|
|
|
/** |
459
|
|
|
* Get the Content-Length HTTP header |
460
|
|
|
* |
461
|
|
|
* @return integer Returns the length of the response body in bytes |
462
|
|
|
*/ |
463
|
|
|
public function getContentLength() |
464
|
|
|
{ |
465
|
|
|
return (int) (string) $this->getHeader('Content-Length'); |
466
|
|
|
} |
467
|
|
|
|
468
|
|
|
/** |
469
|
|
|
* Get the Content-Location HTTP header |
470
|
|
|
* |
471
|
|
|
* @return string|null Returns an alternate location for the returned data (e.g /index.htm) |
472
|
|
|
*/ |
473
|
|
|
public function getContentLocation() |
474
|
|
|
{ |
475
|
|
|
return (string) $this->getHeader('Content-Location'); |
476
|
|
|
} |
477
|
|
|
|
478
|
|
|
/** |
479
|
|
|
* Get the Content-Disposition HTTP header |
480
|
|
|
* |
481
|
|
|
* @return string|null Returns the Content-Disposition header |
482
|
|
|
*/ |
483
|
|
|
public function getContentDisposition() |
484
|
|
|
{ |
485
|
|
|
return (string) $this->getHeader('Content-Disposition'); |
486
|
|
|
} |
487
|
|
|
|
488
|
|
|
/** |
489
|
|
|
* Get the Content-MD5 HTTP header |
490
|
|
|
* |
491
|
|
|
* @return string|null Returns a Base64-encoded binary MD5 sum of the content of the response. |
492
|
|
|
*/ |
493
|
|
|
public function getContentMd5() |
494
|
|
|
{ |
495
|
|
|
return (string) $this->getHeader('Content-MD5'); |
496
|
|
|
} |
497
|
|
|
|
498
|
|
|
/** |
499
|
|
|
* Get the Content-Range HTTP header |
500
|
|
|
* |
501
|
|
|
* @return string Returns where in a full body message this partial message belongs (e.g. bytes 21010-47021/47022). |
502
|
|
|
*/ |
503
|
|
|
public function getContentRange() |
504
|
|
|
{ |
505
|
|
|
return (string) $this->getHeader('Content-Range'); |
506
|
|
|
} |
507
|
|
|
|
508
|
|
|
/** |
509
|
|
|
* Get the Content-Type HTTP header |
510
|
|
|
* |
511
|
|
|
* @return string Returns the mime type of this content. |
512
|
|
|
*/ |
513
|
|
|
public function getContentType() |
514
|
|
|
{ |
515
|
|
|
return (string) $this->getHeader('Content-Type'); |
516
|
|
|
} |
517
|
|
|
|
518
|
|
|
/** |
519
|
|
|
* Checks if the Content-Type is of a certain type. This is useful if the |
520
|
|
|
* Content-Type header contains charset information and you need to know if |
521
|
|
|
* the Content-Type matches a particular type. |
522
|
|
|
* |
523
|
|
|
* @param string $type Content type to check against |
524
|
|
|
* |
525
|
|
|
* @return bool |
526
|
|
|
*/ |
527
|
|
|
public function isContentType($type) |
528
|
|
|
{ |
529
|
|
|
return stripos($this->getHeader('Content-Type'), $type) !== false; |
530
|
|
|
} |
531
|
|
|
|
532
|
|
|
/** |
533
|
|
|
* Get the Date HTTP header |
534
|
|
|
* |
535
|
|
|
* @return string|null Returns the date and time that the message was sent. |
536
|
|
|
*/ |
537
|
|
|
public function getDate() |
538
|
|
|
{ |
539
|
|
|
return (string) $this->getHeader('Date'); |
540
|
|
|
} |
541
|
|
|
|
542
|
|
|
/** |
543
|
|
|
* Get the ETag HTTP header |
544
|
|
|
* |
545
|
|
|
* @return string|null Returns an identifier for a specific version of a resource, often a Message digest. |
546
|
|
|
*/ |
547
|
|
|
public function getEtag() |
548
|
|
|
{ |
549
|
|
|
return (string) $this->getHeader('ETag'); |
550
|
|
|
} |
551
|
|
|
|
552
|
|
|
/** |
553
|
|
|
* Get the Expires HTTP header |
554
|
|
|
* |
555
|
|
|
* @return string|null Returns the date/time after which the response is considered stale. |
556
|
|
|
*/ |
557
|
|
|
public function getExpires() |
558
|
|
|
{ |
559
|
|
|
return (string) $this->getHeader('Expires'); |
560
|
|
|
} |
561
|
|
|
|
562
|
|
|
/** |
563
|
|
|
* Get the Last-Modified HTTP header |
564
|
|
|
* |
565
|
|
|
* @return string|null Returns the last modified date for the requested object, in RFC 2822 format |
566
|
|
|
* (e.g. Tue, 15 Nov 1994 12:45:26 GMT) |
567
|
|
|
*/ |
568
|
|
|
public function getLastModified() |
569
|
|
|
{ |
570
|
|
|
return (string) $this->getHeader('Last-Modified'); |
571
|
|
|
} |
572
|
|
|
|
573
|
|
|
/** |
574
|
|
|
* Get the Location HTTP header |
575
|
|
|
* |
576
|
|
|
* @return string|null Used in redirection, or when a new resource has been created. |
577
|
|
|
*/ |
578
|
|
|
public function getLocation() |
579
|
|
|
{ |
580
|
|
|
return (string) $this->getHeader('Location'); |
581
|
|
|
} |
582
|
|
|
|
583
|
|
|
/** |
584
|
|
|
* Get the Pragma HTTP header |
585
|
|
|
* |
586
|
|
|
* @return Header|null Returns the implementation-specific headers that may have various effects anywhere along |
587
|
|
|
* the request-response chain. |
588
|
|
|
*/ |
589
|
|
|
public function getPragma() |
590
|
|
|
{ |
591
|
|
|
return (string) $this->getHeader('Pragma'); |
592
|
|
|
} |
593
|
|
|
|
594
|
|
|
/** |
595
|
|
|
* Get the Proxy-Authenticate HTTP header |
596
|
|
|
* |
597
|
|
|
* @return string|null Authentication to access the proxy (e.g. Basic) |
598
|
|
|
*/ |
599
|
|
|
public function getProxyAuthenticate() |
600
|
|
|
{ |
601
|
|
|
return (string) $this->getHeader('Proxy-Authenticate'); |
602
|
|
|
} |
603
|
|
|
|
604
|
|
|
/** |
605
|
|
|
* Get the Retry-After HTTP header |
606
|
|
|
* |
607
|
|
|
* @return int|null If an entity is temporarily unavailable, this instructs the client to try again after a |
608
|
|
|
* specified period of time. |
609
|
|
|
*/ |
610
|
|
|
public function getRetryAfter() |
611
|
|
|
{ |
612
|
|
|
return (string) $this->getHeader('Retry-After'); |
613
|
|
|
} |
614
|
|
|
|
615
|
|
|
/** |
616
|
|
|
* Get the Server HTTP header |
617
|
|
|
* |
618
|
|
|
* @return string|null A name for the server |
619
|
|
|
*/ |
620
|
|
|
public function getServer() |
621
|
|
|
{ |
622
|
|
|
return (string) $this->getHeader('Server'); |
623
|
|
|
} |
624
|
|
|
|
625
|
|
|
/** |
626
|
|
|
* Get the Set-Cookie HTTP header |
627
|
|
|
* |
628
|
|
|
* @return string|null An HTTP cookie. |
629
|
|
|
*/ |
630
|
|
|
public function getSetCookie() |
631
|
|
|
{ |
632
|
|
|
return (string) $this->getHeader('Set-Cookie'); |
633
|
|
|
} |
634
|
|
|
|
635
|
|
|
/** |
636
|
|
|
* Get the Trailer HTTP header |
637
|
|
|
* |
638
|
|
|
* @return string|null The Trailer general field value indicates that the given set of header fields is present in |
639
|
|
|
* the trailer of a message encoded with chunked transfer-coding. |
640
|
|
|
*/ |
641
|
|
|
public function getTrailer() |
642
|
|
|
{ |
643
|
|
|
return (string) $this->getHeader('Trailer'); |
644
|
|
|
} |
645
|
|
|
|
646
|
|
|
/** |
647
|
|
|
* Get the Transfer-Encoding HTTP header |
648
|
|
|
* |
649
|
|
|
* @return string|null The form of encoding used to safely transfer the entity to the user |
650
|
|
|
*/ |
651
|
|
|
public function getTransferEncoding() |
652
|
|
|
{ |
653
|
|
|
return (string) $this->getHeader('Transfer-Encoding'); |
654
|
|
|
} |
655
|
|
|
|
656
|
|
|
/** |
657
|
|
|
* Get the Vary HTTP header |
658
|
|
|
* |
659
|
|
|
* @return string|null Tells downstream proxies how to match future request headers to decide whether the cached |
660
|
|
|
* response can be used rather than requesting a fresh one from the origin server. |
661
|
|
|
*/ |
662
|
|
|
public function getVary() |
663
|
|
|
{ |
664
|
|
|
return (string) $this->getHeader('Vary'); |
665
|
|
|
} |
666
|
|
|
|
667
|
|
|
/** |
668
|
|
|
* Get the Via HTTP header |
669
|
|
|
* |
670
|
|
|
* @return string|null Informs the client of proxies through which the response was sent. |
671
|
|
|
*/ |
672
|
|
|
public function getVia() |
673
|
|
|
{ |
674
|
|
|
return (string) $this->getHeader('Via'); |
675
|
|
|
} |
676
|
|
|
|
677
|
|
|
/** |
678
|
|
|
* Get the Warning HTTP header |
679
|
|
|
* |
680
|
|
|
* @return string|null A general warning about possible problems with the entity body |
681
|
|
|
*/ |
682
|
|
|
public function getWarning() |
683
|
|
|
{ |
684
|
|
|
return (string) $this->getHeader('Warning'); |
685
|
|
|
} |
686
|
|
|
|
687
|
|
|
/** |
688
|
|
|
* Get the WWW-Authenticate HTTP header |
689
|
|
|
* |
690
|
|
|
* @return string|null Indicates the authentication scheme that should be used to access the requested entity |
691
|
|
|
*/ |
692
|
|
|
public function getWwwAuthenticate() |
693
|
|
|
{ |
694
|
|
|
return (string) $this->getHeader('WWW-Authenticate'); |
695
|
|
|
} |
696
|
|
|
|
697
|
|
|
/** |
698
|
|
|
* Checks if HTTP Status code is a Client Error (4xx) |
699
|
|
|
* |
700
|
|
|
* @return bool |
701
|
|
|
*/ |
702
|
|
|
public function isClientError() |
703
|
|
|
{ |
704
|
|
|
return $this->statusCode >= 400 && $this->statusCode < 500; |
705
|
|
|
} |
706
|
|
|
|
707
|
|
|
/** |
708
|
|
|
* Checks if HTTP Status code is Server OR Client Error (4xx or 5xx) |
709
|
|
|
* |
710
|
|
|
* @return boolean |
711
|
|
|
*/ |
712
|
|
|
public function isError() |
713
|
|
|
{ |
714
|
|
|
return $this->isClientError() || $this->isServerError(); |
715
|
|
|
} |
716
|
|
|
|
717
|
|
|
/** |
718
|
|
|
* Checks if HTTP Status code is Information (1xx) |
719
|
|
|
* |
720
|
|
|
* @return bool |
721
|
|
|
*/ |
722
|
|
|
public function isInformational() |
723
|
|
|
{ |
724
|
|
|
return $this->statusCode < 200; |
725
|
|
|
} |
726
|
|
|
|
727
|
|
|
/** |
728
|
|
|
* Checks if HTTP Status code is a Redirect (3xx) |
729
|
|
|
* |
730
|
|
|
* @return bool |
731
|
|
|
*/ |
732
|
|
|
public function isRedirect() |
733
|
|
|
{ |
734
|
|
|
return $this->statusCode >= 300 && $this->statusCode < 400; |
735
|
|
|
} |
736
|
|
|
|
737
|
|
|
/** |
738
|
|
|
* Checks if HTTP Status code is Server Error (5xx) |
739
|
|
|
* |
740
|
|
|
* @return bool |
741
|
|
|
*/ |
742
|
|
|
public function isServerError() |
743
|
|
|
{ |
744
|
|
|
return $this->statusCode >= 500 && $this->statusCode < 600; |
745
|
|
|
} |
746
|
|
|
|
747
|
|
|
/** |
748
|
|
|
* Checks if HTTP Status code is Successful (2xx | 304) |
749
|
|
|
* |
750
|
|
|
* @return bool |
751
|
|
|
*/ |
752
|
|
|
public function isSuccessful() |
753
|
|
|
{ |
754
|
|
|
return ($this->statusCode >= 200 && $this->statusCode < 300) || $this->statusCode == 304; |
755
|
|
|
} |
756
|
|
|
|
757
|
|
|
/** |
758
|
|
|
* Check if the response can be cached based on the response headers |
759
|
|
|
* |
760
|
|
|
* @return bool Returns TRUE if the response can be cached or false if not |
761
|
|
|
*/ |
762
|
|
|
public function canCache() |
763
|
|
|
{ |
764
|
|
|
// Check if the response is cacheable based on the code |
765
|
|
|
if (!in_array((int) $this->getStatusCode(), self::$cacheResponseCodes)) { |
766
|
|
|
return false; |
767
|
|
|
} |
768
|
|
|
|
769
|
|
|
// Make sure a valid body was returned and can be cached |
770
|
|
|
if ((!$this->getBody()->isReadable() || !$this->getBody()->isSeekable()) |
771
|
|
|
&& ($this->getContentLength() > 0 || $this->getTransferEncoding() == 'chunked')) { |
772
|
|
|
return false; |
773
|
|
|
} |
774
|
|
|
|
775
|
|
|
// Never cache no-store resources (this is a private cache, so private |
776
|
|
|
// can be cached) |
777
|
|
|
if ($this->getHeader('Cache-Control') && $this->getHeader('Cache-Control')->hasDirective('no-store')) { |
|
|
|
|
778
|
|
|
return false; |
779
|
|
|
} |
780
|
|
|
|
781
|
|
|
return $this->isFresh() || $this->getFreshness() === null || $this->canValidate(); |
782
|
|
|
} |
783
|
|
|
|
784
|
|
|
/** |
785
|
|
|
* Gets the number of seconds from the current time in which this response is still considered fresh |
786
|
|
|
* |
787
|
|
|
* @return int|null Returns the number of seconds |
788
|
|
|
*/ |
789
|
|
|
public function getMaxAge() |
790
|
|
|
{ |
791
|
|
|
if ($header = $this->getHeader('Cache-Control')) { |
792
|
|
|
// s-max-age, then max-age, then Expires |
793
|
|
|
if ($age = $header->getDirective('s-maxage')) { |
794
|
|
|
return $age; |
795
|
|
|
} |
796
|
|
|
if ($age = $header->getDirective('max-age')) { |
797
|
|
|
return $age; |
798
|
|
|
} |
799
|
|
|
} |
800
|
|
|
|
801
|
|
|
if ($this->getHeader('Expires')) { |
802
|
|
|
return strtotime($this->getExpires()) - time(); |
803
|
|
|
} |
804
|
|
|
|
805
|
|
|
return null; |
806
|
|
|
} |
807
|
|
|
|
808
|
|
|
/** |
809
|
|
|
* Check if the response is considered fresh. |
810
|
|
|
* |
811
|
|
|
* A response is considered fresh when its age is less than or equal to the freshness lifetime (maximum age) of the |
812
|
|
|
* response. |
813
|
|
|
* |
814
|
|
|
* @return bool|null |
815
|
|
|
*/ |
816
|
|
|
public function isFresh() |
817
|
|
|
{ |
818
|
|
|
$fresh = $this->getFreshness(); |
819
|
|
|
|
820
|
|
|
return $fresh === null ? null : $fresh >= 0; |
821
|
|
|
} |
822
|
|
|
|
823
|
|
|
/** |
824
|
|
|
* Check if the response can be validated against the origin server using a conditional GET request. |
825
|
|
|
* |
826
|
|
|
* @return bool |
827
|
|
|
*/ |
828
|
|
|
public function canValidate() |
829
|
|
|
{ |
830
|
|
|
return $this->getEtag() || $this->getLastModified(); |
|
|
|
|
831
|
|
|
} |
832
|
|
|
|
833
|
|
|
/** |
834
|
|
|
* Get the freshness of the response by returning the difference of the maximum lifetime of the response and the |
835
|
|
|
* age of the response (max-age - age). |
836
|
|
|
* |
837
|
|
|
* Freshness values less than 0 mean that the response is no longer fresh and is ABS(freshness) seconds expired. |
838
|
|
|
* Freshness values of greater than zero is the number of seconds until the response is no longer fresh. A NULL |
839
|
|
|
* result means that no freshness information is available. |
840
|
|
|
* |
841
|
|
|
* @return int |
842
|
|
|
*/ |
843
|
|
|
public function getFreshness() |
844
|
|
|
{ |
845
|
|
|
$maxAge = $this->getMaxAge(); |
846
|
|
|
$age = $this->calculateAge(); |
847
|
|
|
|
848
|
|
|
return $maxAge && $age ? ($maxAge - $age) : null; |
|
|
|
|
849
|
|
|
} |
850
|
|
|
|
851
|
|
|
/** |
852
|
|
|
* Parse the JSON response body and return an array |
853
|
|
|
* |
854
|
|
|
* @return array|string|int|bool|float |
855
|
|
|
* @throws RuntimeException if the response body is not in JSON format |
856
|
|
|
*/ |
857
|
|
|
public function json() |
858
|
|
|
{ |
859
|
|
|
$data = json_decode((string) $this->body, true); |
860
|
|
|
if (JSON_ERROR_NONE !== json_last_error()) { |
861
|
|
|
throw new RuntimeException('Unable to parse response body into JSON: ' . json_last_error()); |
862
|
|
|
} |
863
|
|
|
|
864
|
|
|
return $data === null ? array() : $data; |
865
|
|
|
} |
866
|
|
|
|
867
|
|
|
/** |
868
|
|
|
* Parse the XML response body and return a \SimpleXMLElement. |
869
|
|
|
* |
870
|
|
|
* In order to prevent XXE attacks, this method disables loading external |
871
|
|
|
* entities. If you rely on external entities, then you must parse the |
872
|
|
|
* XML response manually by accessing the response body directly. |
873
|
|
|
* |
874
|
|
|
* @return \SimpleXMLElement |
875
|
|
|
* @throws RuntimeException if the response body is not in XML format |
876
|
|
|
* @link http://websec.io/2012/08/27/Preventing-XXE-in-PHP.html |
877
|
|
|
*/ |
878
|
|
|
public function xml() |
879
|
|
|
{ |
880
|
|
|
$errorMessage = null; |
881
|
|
|
$internalErrors = libxml_use_internal_errors(true); |
882
|
|
|
$disableEntities = libxml_disable_entity_loader(true); |
883
|
|
|
libxml_clear_errors(); |
884
|
|
|
|
885
|
|
|
try { |
886
|
|
|
$xml = new \SimpleXMLElement((string) $this->body ?: '<root />', LIBXML_NONET); |
887
|
|
|
if ($error = libxml_get_last_error()) { |
888
|
|
|
$errorMessage = $error->message; |
889
|
|
|
} |
890
|
|
|
} catch (\Exception $e) { |
891
|
|
|
$errorMessage = $e->getMessage(); |
892
|
|
|
} |
893
|
|
|
|
894
|
|
|
libxml_clear_errors(); |
895
|
|
|
libxml_use_internal_errors($internalErrors); |
896
|
|
|
libxml_disable_entity_loader($disableEntities); |
897
|
|
|
|
898
|
|
|
if ($errorMessage) { |
899
|
|
|
throw new RuntimeException('Unable to parse response body into XML: ' . $errorMessage); |
900
|
|
|
} |
901
|
|
|
|
902
|
|
|
return $xml; |
903
|
|
|
} |
904
|
|
|
|
905
|
|
|
/** |
906
|
|
|
* Get the redirect count of this response |
907
|
|
|
* |
908
|
|
|
* @return int |
909
|
|
|
*/ |
910
|
|
|
public function getRedirectCount() |
911
|
|
|
{ |
912
|
|
|
return (int) $this->params->get(RedirectPlugin::REDIRECT_COUNT); |
913
|
|
|
} |
914
|
|
|
|
915
|
|
|
/** |
916
|
|
|
* Set the effective URL that resulted in this response (e.g. the last redirect URL) |
917
|
|
|
* |
918
|
|
|
* @param string $url The effective URL |
919
|
|
|
* |
920
|
|
|
* @return self |
921
|
|
|
*/ |
922
|
|
|
public function setEffectiveUrl($url) |
923
|
|
|
{ |
924
|
|
|
$this->effectiveUrl = $url; |
925
|
|
|
|
926
|
|
|
return $this; |
927
|
|
|
} |
928
|
|
|
|
929
|
|
|
/** |
930
|
|
|
* Get the effective URL that resulted in this response (e.g. the last redirect URL) |
931
|
|
|
* |
932
|
|
|
* @return string |
933
|
|
|
*/ |
934
|
|
|
public function getEffectiveUrl() |
935
|
|
|
{ |
936
|
|
|
return $this->effectiveUrl; |
937
|
|
|
} |
938
|
|
|
|
939
|
|
|
/** |
940
|
|
|
* @deprecated |
941
|
|
|
* @codeCoverageIgnore |
942
|
|
|
*/ |
943
|
|
|
public function getPreviousResponse() |
944
|
|
|
{ |
945
|
|
|
Version::warn(__METHOD__ . ' is deprecated. Use the HistoryPlugin.'); |
946
|
|
|
return null; |
947
|
|
|
} |
948
|
|
|
|
949
|
|
|
/** |
950
|
|
|
* @deprecated |
951
|
|
|
* @codeCoverageIgnore |
952
|
|
|
*/ |
953
|
|
|
public function setRequest($request) |
|
|
|
|
954
|
|
|
{ |
955
|
|
|
Version::warn(__METHOD__ . ' is deprecated'); |
956
|
|
|
return $this; |
957
|
|
|
} |
958
|
|
|
|
959
|
|
|
/** |
960
|
|
|
* @deprecated |
961
|
|
|
* @codeCoverageIgnore |
962
|
|
|
*/ |
963
|
|
|
public function getRequest() |
964
|
|
|
{ |
965
|
|
|
Version::warn(__METHOD__ . ' is deprecated'); |
966
|
|
|
return null; |
967
|
|
|
} |
968
|
|
|
} |
969
|
|
|
|
If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:
If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue.