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968 lines
26 KiB
PHP
968 lines
26 KiB
PHP
<?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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return $this;
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}
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/**
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* Get the response status code
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*
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* @return integer
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*/
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public function getStatusCode()
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{
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return $this->statusCode;
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}
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/**
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* Get the entire response as a string
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*
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* @return string
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*/
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public function getMessage()
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{
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$message = $this->getRawHeaders();
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// Only include the body in the message if the size is < 2MB
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$size = $this->body->getSize();
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if ($size < 2097152) {
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$message .= (string) $this->body;
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}
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return $message;
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}
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/**
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* Get the the raw message headers as a string
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*
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* @return string
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*/
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public function getRawHeaders()
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{
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$headers = 'HTTP/1.1 ' . $this->statusCode . ' ' . $this->reasonPhrase . "\r\n";
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$lines = $this->getHeaderLines();
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if (!empty($lines)) {
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$headers .= implode("\r\n", $lines) . "\r\n";
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}
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return $headers . "\r\n";
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}
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/**
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* Get the response reason phrase- a human readable version of the numeric
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* status code
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*
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* @return string
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*/
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public function getReasonPhrase()
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{
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return $this->reasonPhrase;
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}
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/**
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* Get the Accept-Ranges HTTP header
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*
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* @return string Returns what partial content range types this server supports.
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*/
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public function getAcceptRanges()
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{
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return (string) $this->getHeader('Accept-Ranges');
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}
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/**
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* Calculate the age of the response
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*
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* @return integer
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*/
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public function calculateAge()
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{
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$age = $this->getHeader('Age');
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if ($age === null && $this->getDate()) {
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$age = time() - strtotime($this->getDate());
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}
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return $age === null ? null : (int) (string) $age;
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}
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/**
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* Get the Age HTTP header
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*
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* @return integer|null Returns the age the object has been in a proxy cache in seconds.
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*/
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public function getAge()
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{
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return (string) $this->getHeader('Age');
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}
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/**
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* Get the Allow HTTP header
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*
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* @return string|null Returns valid actions for a specified resource. To be used for a 405 Method not allowed.
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*/
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public function getAllow()
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{
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return (string) $this->getHeader('Allow');
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}
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/**
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* Check if an HTTP method is allowed by checking the Allow response header
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*
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* @param string $method Method to check
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*
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* @return bool
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*/
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public function isMethodAllowed($method)
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{
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$allow = $this->getHeader('Allow');
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if ($allow) {
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foreach (explode(',', $allow) as $allowable) {
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if (!strcasecmp(trim($allowable), $method)) {
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return true;
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}
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}
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}
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return false;
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}
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/**
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* Get the Cache-Control HTTP header
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*
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* @return string
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*/
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public function getCacheControl()
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{
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return (string) $this->getHeader('Cache-Control');
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}
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/**
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* Get the Connection HTTP header
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*
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* @return string
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*/
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public function getConnection()
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{
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return (string) $this->getHeader('Connection');
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}
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/**
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* Get the Content-Encoding HTTP header
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*
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* @return string|null
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*/
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public function getContentEncoding()
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{
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return (string) $this->getHeader('Content-Encoding');
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}
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/**
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* Get the Content-Language HTTP header
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*
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* @return string|null Returns the language the content is in.
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*/
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public function getContentLanguage()
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{
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return (string) $this->getHeader('Content-Language');
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}
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/**
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* Get the Content-Length HTTP header
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*
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* @return integer Returns the length of the response body in bytes
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*/
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public function getContentLength()
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{
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return (int) (string) $this->getHeader('Content-Length');
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}
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/**
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* Get the Content-Location HTTP header
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*
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* @return string|null Returns an alternate location for the returned data (e.g /index.htm)
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*/
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public function getContentLocation()
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{
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return (string) $this->getHeader('Content-Location');
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}
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/**
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* Get the Content-Disposition HTTP header
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*
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* @return string|null Returns the Content-Disposition header
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*/
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public function getContentDisposition()
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{
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return (string) $this->getHeader('Content-Disposition');
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}
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/**
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* Get the Content-MD5 HTTP header
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*
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* @return string|null Returns a Base64-encoded binary MD5 sum of the content of the response.
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*/
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public function getContentMd5()
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{
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return (string) $this->getHeader('Content-MD5');
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}
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/**
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* Get the Content-Range HTTP header
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*
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* @return string Returns where in a full body message this partial message belongs (e.g. bytes 21010-47021/47022).
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*/
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public function getContentRange()
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{
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return (string) $this->getHeader('Content-Range');
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}
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/**
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* Get the Content-Type HTTP header
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*
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* @return string Returns the mime type of this content.
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*/
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public function getContentType()
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{
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return (string) $this->getHeader('Content-Type');
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}
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/**
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* Checks if the Content-Type is of a certain type. This is useful if the
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* Content-Type header contains charset information and you need to know if
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* the Content-Type matches a particular type.
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*
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* @param string $type Content type to check against
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*
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* @return bool
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*/
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public function isContentType($type)
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{
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return stripos($this->getHeader('Content-Type'), $type) !== false;
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}
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/**
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* Get the Date HTTP header
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*
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* @return string|null Returns the date and time that the message was sent.
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*/
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public function getDate()
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{
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return (string) $this->getHeader('Date');
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}
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/**
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* Get the ETag HTTP header
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*
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* @return string|null Returns an identifier for a specific version of a resource, often a Message digest.
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*/
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public function getEtag()
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{
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return (string) $this->getHeader('ETag');
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}
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/**
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* Get the Expires HTTP header
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*
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* @return string|null Returns the date/time after which the response is considered stale.
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*/
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public function getExpires()
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{
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return (string) $this->getHeader('Expires');
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}
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/**
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* Get the Last-Modified HTTP header
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*
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* @return string|null Returns the last modified date for the requested object, in RFC 2822 format
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* (e.g. Tue, 15 Nov 1994 12:45:26 GMT)
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*/
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public function getLastModified()
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{
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return (string) $this->getHeader('Last-Modified');
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}
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/**
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* Get the Location HTTP header
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*
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* @return string|null Used in redirection, or when a new resource has been created.
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*/
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public function getLocation()
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{
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return (string) $this->getHeader('Location');
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}
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/**
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* Get the Pragma HTTP header
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*
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* @return Header|null Returns the implementation-specific headers that may have various effects anywhere along
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* the request-response chain.
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*/
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public function getPragma()
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{
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return (string) $this->getHeader('Pragma');
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}
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/**
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* Get the Proxy-Authenticate HTTP header
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*
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* @return string|null Authentication to access the proxy (e.g. Basic)
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*/
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public function getProxyAuthenticate()
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{
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return (string) $this->getHeader('Proxy-Authenticate');
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}
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/**
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* Get the Retry-After HTTP header
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*
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* @return int|null If an entity is temporarily unavailable, this instructs the client to try again after a
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* specified period of time.
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*/
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public function getRetryAfter()
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{
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return (string) $this->getHeader('Retry-After');
|
|
}
|
|
|
|
/**
|
|
* Get the Server HTTP header
|
|
*
|
|
* @return string|null A name for the server
|
|
*/
|
|
public function getServer()
|
|
{
|
|
return (string) $this->getHeader('Server');
|
|
}
|
|
|
|
/**
|
|
* Get the Set-Cookie HTTP header
|
|
*
|
|
* @return string|null An HTTP cookie.
|
|
*/
|
|
public function getSetCookie()
|
|
{
|
|
return (string) $this->getHeader('Set-Cookie');
|
|
}
|
|
|
|
/**
|
|
* Get the Trailer HTTP header
|
|
*
|
|
* @return string|null The Trailer general field value indicates that the given set of header fields is present in
|
|
* the trailer of a message encoded with chunked transfer-coding.
|
|
*/
|
|
public function getTrailer()
|
|
{
|
|
return (string) $this->getHeader('Trailer');
|
|
}
|
|
|
|
/**
|
|
* Get the Transfer-Encoding HTTP header
|
|
*
|
|
* @return string|null The form of encoding used to safely transfer the entity to the user
|
|
*/
|
|
public function getTransferEncoding()
|
|
{
|
|
return (string) $this->getHeader('Transfer-Encoding');
|
|
}
|
|
|
|
/**
|
|
* Get the Vary HTTP header
|
|
*
|
|
* @return string|null Tells downstream proxies how to match future request headers to decide whether the cached
|
|
* response can be used rather than requesting a fresh one from the origin server.
|
|
*/
|
|
public function getVary()
|
|
{
|
|
return (string) $this->getHeader('Vary');
|
|
}
|
|
|
|
/**
|
|
* Get the Via HTTP header
|
|
*
|
|
* @return string|null Informs the client of proxies through which the response was sent.
|
|
*/
|
|
public function getVia()
|
|
{
|
|
return (string) $this->getHeader('Via');
|
|
}
|
|
|
|
/**
|
|
* Get the Warning HTTP header
|
|
*
|
|
* @return string|null A general warning about possible problems with the entity body
|
|
*/
|
|
public function getWarning()
|
|
{
|
|
return (string) $this->getHeader('Warning');
|
|
}
|
|
|
|
/**
|
|
* Get the WWW-Authenticate HTTP header
|
|
*
|
|
* @return string|null Indicates the authentication scheme that should be used to access the requested entity
|
|
*/
|
|
public function getWwwAuthenticate()
|
|
{
|
|
return (string) $this->getHeader('WWW-Authenticate');
|
|
}
|
|
|
|
/**
|
|
* Checks if HTTP Status code is a Client Error (4xx)
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function isClientError()
|
|
{
|
|
return $this->statusCode >= 400 && $this->statusCode < 500;
|
|
}
|
|
|
|
/**
|
|
* Checks if HTTP Status code is Server OR Client Error (4xx or 5xx)
|
|
*
|
|
* @return boolean
|
|
*/
|
|
public function isError()
|
|
{
|
|
return $this->isClientError() || $this->isServerError();
|
|
}
|
|
|
|
/**
|
|
* Checks if HTTP Status code is Information (1xx)
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function isInformational()
|
|
{
|
|
return $this->statusCode < 200;
|
|
}
|
|
|
|
/**
|
|
* Checks if HTTP Status code is a Redirect (3xx)
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function isRedirect()
|
|
{
|
|
return $this->statusCode >= 300 && $this->statusCode < 400;
|
|
}
|
|
|
|
/**
|
|
* Checks if HTTP Status code is Server Error (5xx)
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function isServerError()
|
|
{
|
|
return $this->statusCode >= 500 && $this->statusCode < 600;
|
|
}
|
|
|
|
/**
|
|
* Checks if HTTP Status code is Successful (2xx | 304)
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function isSuccessful()
|
|
{
|
|
return ($this->statusCode >= 200 && $this->statusCode < 300) || $this->statusCode == 304;
|
|
}
|
|
|
|
/**
|
|
* Check if the response can be cached based on the response headers
|
|
*
|
|
* @return bool Returns TRUE if the response can be cached or false if not
|
|
*/
|
|
public function canCache()
|
|
{
|
|
// Check if the response is cacheable based on the code
|
|
if (!in_array((int) $this->getStatusCode(), self::$cacheResponseCodes)) {
|
|
return false;
|
|
}
|
|
|
|
// Make sure a valid body was returned and can be cached
|
|
if ((!$this->getBody()->isReadable() || !$this->getBody()->isSeekable())
|
|
&& ($this->getContentLength() > 0 || $this->getTransferEncoding() == 'chunked')) {
|
|
return false;
|
|
}
|
|
|
|
// Never cache no-store resources (this is a private cache, so private
|
|
// can be cached)
|
|
if ($this->getHeader('Cache-Control') && $this->getHeader('Cache-Control')->hasDirective('no-store')) {
|
|
return false;
|
|
}
|
|
|
|
return $this->isFresh() || $this->getFreshness() === null || $this->canValidate();
|
|
}
|
|
|
|
/**
|
|
* Gets the number of seconds from the current time in which this response is still considered fresh
|
|
*
|
|
* @return int|null Returns the number of seconds
|
|
*/
|
|
public function getMaxAge()
|
|
{
|
|
if ($header = $this->getHeader('Cache-Control')) {
|
|
// s-max-age, then max-age, then Expires
|
|
if ($age = $header->getDirective('s-maxage')) {
|
|
return $age;
|
|
}
|
|
if ($age = $header->getDirective('max-age')) {
|
|
return $age;
|
|
}
|
|
}
|
|
|
|
if ($this->getHeader('Expires')) {
|
|
return strtotime($this->getExpires()) - time();
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Check if the response is considered fresh.
|
|
*
|
|
* A response is considered fresh when its age is less than or equal to the freshness lifetime (maximum age) of the
|
|
* response.
|
|
*
|
|
* @return bool|null
|
|
*/
|
|
public function isFresh()
|
|
{
|
|
$fresh = $this->getFreshness();
|
|
|
|
return $fresh === null ? null : $fresh >= 0;
|
|
}
|
|
|
|
/**
|
|
* Check if the response can be validated against the origin server using a conditional GET request.
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function canValidate()
|
|
{
|
|
return $this->getEtag() || $this->getLastModified();
|
|
}
|
|
|
|
/**
|
|
* Get the freshness of the response by returning the difference of the maximum lifetime of the response and the
|
|
* age of the response (max-age - age).
|
|
*
|
|
* Freshness values less than 0 mean that the response is no longer fresh and is ABS(freshness) seconds expired.
|
|
* Freshness values of greater than zero is the number of seconds until the response is no longer fresh. A NULL
|
|
* result means that no freshness information is available.
|
|
*
|
|
* @return int
|
|
*/
|
|
public function getFreshness()
|
|
{
|
|
$maxAge = $this->getMaxAge();
|
|
$age = $this->calculateAge();
|
|
|
|
return $maxAge && $age ? ($maxAge - $age) : null;
|
|
}
|
|
|
|
/**
|
|
* Parse the JSON response body and return an array
|
|
*
|
|
* @return array|string|int|bool|float
|
|
* @throws RuntimeException if the response body is not in JSON format
|
|
*/
|
|
public function json()
|
|
{
|
|
$data = json_decode((string) $this->body, true);
|
|
if (JSON_ERROR_NONE !== json_last_error()) {
|
|
throw new RuntimeException('Unable to parse response body into JSON: ' . json_last_error());
|
|
}
|
|
|
|
return $data === null ? array() : $data;
|
|
}
|
|
|
|
/**
|
|
* Parse the XML response body and return a \SimpleXMLElement.
|
|
*
|
|
* In order to prevent XXE attacks, this method disables loading external
|
|
* entities. If you rely on external entities, then you must parse the
|
|
* XML response manually by accessing the response body directly.
|
|
*
|
|
* @return \SimpleXMLElement
|
|
* @throws RuntimeException if the response body is not in XML format
|
|
* @link http://websec.io/2012/08/27/Preventing-XXE-in-PHP.html
|
|
*/
|
|
public function xml()
|
|
{
|
|
$errorMessage = null;
|
|
$internalErrors = libxml_use_internal_errors(true);
|
|
$disableEntities = libxml_disable_entity_loader(true);
|
|
libxml_clear_errors();
|
|
|
|
try {
|
|
$xml = new \SimpleXMLElement((string) $this->body ?: '<root />', LIBXML_NONET);
|
|
if ($error = libxml_get_last_error()) {
|
|
$errorMessage = $error->message;
|
|
}
|
|
} catch (\Exception $e) {
|
|
$errorMessage = $e->getMessage();
|
|
}
|
|
|
|
libxml_clear_errors();
|
|
libxml_use_internal_errors($internalErrors);
|
|
libxml_disable_entity_loader($disableEntities);
|
|
|
|
if ($errorMessage) {
|
|
throw new RuntimeException('Unable to parse response body into XML: ' . $errorMessage);
|
|
}
|
|
|
|
return $xml;
|
|
}
|
|
|
|
/**
|
|
* Get the redirect count of this response
|
|
*
|
|
* @return int
|
|
*/
|
|
public function getRedirectCount()
|
|
{
|
|
return (int) $this->params->get(RedirectPlugin::REDIRECT_COUNT);
|
|
}
|
|
|
|
/**
|
|
* Set the effective URL that resulted in this response (e.g. the last redirect URL)
|
|
*
|
|
* @param string $url The effective URL
|
|
*
|
|
* @return self
|
|
*/
|
|
public function setEffectiveUrl($url)
|
|
{
|
|
$this->effectiveUrl = $url;
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Get the effective URL that resulted in this response (e.g. the last redirect URL)
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getEffectiveUrl()
|
|
{
|
|
return $this->effectiveUrl;
|
|
}
|
|
|
|
/**
|
|
* @deprecated
|
|
* @codeCoverageIgnore
|
|
*/
|
|
public function getPreviousResponse()
|
|
{
|
|
Version::warn(__METHOD__ . ' is deprecated. Use the HistoryPlugin.');
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* @deprecated
|
|
* @codeCoverageIgnore
|
|
*/
|
|
public function setRequest($request)
|
|
{
|
|
Version::warn(__METHOD__ . ' is deprecated');
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* @deprecated
|
|
* @codeCoverageIgnore
|
|
*/
|
|
public function getRequest()
|
|
{
|
|
Version::warn(__METHOD__ . ' is deprecated');
|
|
return null;
|
|
}
|
|
}
|