forked from GNUsocial/gnu-social
138 lines
4.6 KiB
PHP
138 lines
4.6 KiB
PHP
<?php
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/**
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* Base class for HTTP_Request2 adapters
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*
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* PHP version 5
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*
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* LICENSE
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*
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* This source file is subject to BSD 3-Clause License that is bundled
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* with this package in the file LICENSE and available at the URL
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* https://raw.github.com/pear/HTTP_Request2/trunk/docs/LICENSE
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*
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* @category HTTP
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* @package HTTP_Request2
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* @author Alexey Borzov <avb@php.net>
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* @copyright 2008-2014 Alexey Borzov <avb@php.net>
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* @license http://opensource.org/licenses/BSD-3-Clause BSD 3-Clause License
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* @link http://pear.php.net/package/HTTP_Request2
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*/
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/**
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* Class representing a HTTP response
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*/
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require_once 'HTTP/Request2/Response.php';
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/**
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* Base class for HTTP_Request2 adapters
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*
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* HTTP_Request2 class itself only defines methods for aggregating the request
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* data, all actual work of sending the request to the remote server and
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* receiving its response is performed by adapters.
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*
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* @category HTTP
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* @package HTTP_Request2
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* @author Alexey Borzov <avb@php.net>
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* @license http://opensource.org/licenses/BSD-3-Clause BSD 3-Clause License
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* @version Release: 2.2.1
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* @link http://pear.php.net/package/HTTP_Request2
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*/
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abstract class HTTP_Request2_Adapter
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{
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/**
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* A list of methods that MUST NOT have a request body, per RFC 2616
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* @var array
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*/
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protected static $bodyDisallowed = array('TRACE');
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/**
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* Methods having defined semantics for request body
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*
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* Content-Length header (indicating that the body follows, section 4.3 of
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* RFC 2616) will be sent for these methods even if no body was added
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*
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* @var array
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* @link http://pear.php.net/bugs/bug.php?id=12900
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* @link http://pear.php.net/bugs/bug.php?id=14740
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*/
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protected static $bodyRequired = array('POST', 'PUT');
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/**
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* Request being sent
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* @var HTTP_Request2
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*/
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protected $request;
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/**
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* Request body
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* @var string|resource|HTTP_Request2_MultipartBody
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* @see HTTP_Request2::getBody()
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*/
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protected $requestBody;
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/**
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* Length of the request body
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* @var integer
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*/
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protected $contentLength;
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/**
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* Sends request to the remote server and returns its response
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*
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* @param HTTP_Request2 $request HTTP request message
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*
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* @return HTTP_Request2_Response
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* @throws HTTP_Request2_Exception
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*/
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abstract public function sendRequest(HTTP_Request2 $request);
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/**
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* Calculates length of the request body, adds proper headers
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*
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* @param array &$headers associative array of request headers, this method
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* will add proper 'Content-Length' and 'Content-Type'
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* headers to this array (or remove them if not needed)
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*/
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protected function calculateRequestLength(&$headers)
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{
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$this->requestBody = $this->request->getBody();
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if (is_string($this->requestBody)) {
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$this->contentLength = strlen($this->requestBody);
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} elseif (is_resource($this->requestBody)) {
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$stat = fstat($this->requestBody);
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$this->contentLength = $stat['size'];
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rewind($this->requestBody);
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} else {
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$this->contentLength = $this->requestBody->getLength();
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$headers['content-type'] = 'multipart/form-data; boundary=' .
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$this->requestBody->getBoundary();
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$this->requestBody->rewind();
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}
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if (in_array($this->request->getMethod(), self::$bodyDisallowed)
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|| 0 == $this->contentLength
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) {
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// No body: send a Content-Length header nonetheless (request #12900),
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// but do that only for methods that require a body (bug #14740)
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if (in_array($this->request->getMethod(), self::$bodyRequired)) {
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$headers['content-length'] = 0;
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} else {
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unset($headers['content-length']);
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// if the method doesn't require a body and doesn't have a
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// body, don't send a Content-Type header. (request #16799)
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unset($headers['content-type']);
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}
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} else {
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if (empty($headers['content-type'])) {
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$headers['content-type'] = 'application/x-www-form-urlencoded';
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}
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// Content-Length should not be sent for chunked Transfer-Encoding (bug #20125)
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if (!isset($headers['transfer-encoding'])) {
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$headers['content-length'] = $this->contentLength;
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}
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}
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}
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}
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?>
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