384 lines
14 KiB
PHP
384 lines
14 KiB
PHP
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<?php
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/**
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* Adapter for HTTP_Request2 wrapping around cURL extension
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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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* Copyright (c) 2008, 2009, Alexey Borzov <avb@php.net>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * The names of the authors may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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-license.php New BSD License
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* @version CVS: $Id: Curl.php 278226 2009-04-03 21:32:48Z avb $
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* @link http://pear.php.net/package/HTTP_Request2
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*/
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/**
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* Base class for HTTP_Request2 adapters
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*/
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require_once 'HTTP/Request2/Adapter.php';
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/**
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* Adapter for HTTP_Request2 wrapping around cURL extension
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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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* @version Release: 0.4.1
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*/
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class HTTP_Request2_Adapter_Curl extends HTTP_Request2_Adapter
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{
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/**
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* Mapping of header names to cURL options
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* @var array
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*/
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protected static $headerMap = array(
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'accept-encoding' => CURLOPT_ENCODING,
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'cookie' => CURLOPT_COOKIE,
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'referer' => CURLOPT_REFERER,
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'user-agent' => CURLOPT_USERAGENT
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);
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/**
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* Mapping of SSL context options to cURL options
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* @var array
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*/
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protected static $sslContextMap = array(
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'ssl_verify_peer' => CURLOPT_SSL_VERIFYPEER,
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'ssl_cafile' => CURLOPT_CAINFO,
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'ssl_capath' => CURLOPT_CAPATH,
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'ssl_local_cert' => CURLOPT_SSLCERT,
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'ssl_passphrase' => CURLOPT_SSLCERTPASSWD
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);
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/**
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* Response being received
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* @var HTTP_Request2_Response
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*/
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protected $response;
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/**
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* Whether 'sentHeaders' event was sent to observers
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* @var boolean
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*/
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protected $eventSentHeaders = false;
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/**
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* Whether 'receivedHeaders' event was sent to observers
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* @var boolean
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*/
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protected $eventReceivedHeaders = false;
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/**
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* Position within request body
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* @var integer
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* @see callbackReadBody()
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*/
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protected $position = 0;
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/**
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* Information about last transfer, as returned by curl_getinfo()
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* @var array
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*/
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protected $lastInfo;
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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
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* @return HTTP_Request2_Response
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* @throws HTTP_Request2_Exception
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*/
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public function sendRequest(HTTP_Request2 $request)
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{
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if (!extension_loaded('curl')) {
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throw new HTTP_Request2_Exception('cURL extension not available');
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}
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$this->request = $request;
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$this->response = null;
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$this->position = 0;
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$this->eventSentHeaders = false;
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$this->eventReceivedHeaders = false;
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try {
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if (false === curl_exec($ch = $this->createCurlHandle())) {
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$errorMessage = 'Error sending request: #' . curl_errno($ch) .
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' ' . curl_error($ch);
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}
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} catch (Exception $e) {
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}
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$this->lastInfo = curl_getinfo($ch);
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curl_close($ch);
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if (!empty($e)) {
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throw $e;
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} elseif (!empty($errorMessage)) {
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throw new HTTP_Request2_Exception($errorMessage);
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}
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if (0 < $this->lastInfo['size_download']) {
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$this->request->setLastEvent('receivedBody', $this->response);
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}
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return $this->response;
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}
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/**
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* Returns information about last transfer
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*
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* @return array associative array as returned by curl_getinfo()
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*/
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public function getInfo()
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{
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return $this->lastInfo;
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}
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/**
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* Creates a new cURL handle and populates it with data from the request
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*
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* @return resource a cURL handle, as created by curl_init()
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* @throws HTTP_Request2_Exception
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*/
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protected function createCurlHandle()
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{
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$ch = curl_init();
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curl_setopt_array($ch, array(
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// setup callbacks
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CURLOPT_READFUNCTION => array($this, 'callbackReadBody'),
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CURLOPT_HEADERFUNCTION => array($this, 'callbackWriteHeader'),
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CURLOPT_WRITEFUNCTION => array($this, 'callbackWriteBody'),
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// disallow redirects
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CURLOPT_FOLLOWLOCATION => false,
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// buffer size
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CURLOPT_BUFFERSIZE => $this->request->getConfig('buffer_size'),
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// connection timeout
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CURLOPT_CONNECTTIMEOUT => $this->request->getConfig('connect_timeout'),
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// save full outgoing headers, in case someone is interested
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CURLINFO_HEADER_OUT => true,
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// request url
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CURLOPT_URL => $this->request->getUrl()->getUrl()
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));
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// request timeout
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if ($timeout = $this->request->getConfig('timeout')) {
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curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
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}
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// set HTTP version
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switch ($this->request->getConfig('protocol_version')) {
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case '1.0':
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curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
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break;
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case '1.1':
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curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
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}
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// set request method
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switch ($this->request->getMethod()) {
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case HTTP_Request2::METHOD_GET:
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curl_setopt($ch, CURLOPT_HTTPGET, true);
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break;
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case HTTP_Request2::METHOD_POST:
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curl_setopt($ch, CURLOPT_POST, true);
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break;
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default:
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curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $this->request->getMethod());
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}
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// set proxy, if needed
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if ($host = $this->request->getConfig('proxy_host')) {
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if (!($port = $this->request->getConfig('proxy_port'))) {
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throw new HTTP_Request2_Exception('Proxy port not provided');
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}
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curl_setopt($ch, CURLOPT_PROXY, $host . ':' . $port);
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if ($user = $this->request->getConfig('proxy_user')) {
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curl_setopt($ch, CURLOPT_PROXYUSERPWD, $user . ':' .
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$this->request->getConfig('proxy_password'));
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switch ($this->request->getConfig('proxy_auth_scheme')) {
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case HTTP_Request2::AUTH_BASIC:
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curl_setopt($ch, CURLOPT_PROXYAUTH, CURLAUTH_BASIC);
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break;
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case HTTP_Request2::AUTH_DIGEST:
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curl_setopt($ch, CURLOPT_PROXYAUTH, CURLAUTH_DIGEST);
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}
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}
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}
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// set authentication data
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if ($auth = $this->request->getAuth()) {
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curl_setopt($ch, CURLOPT_USERPWD, $auth['user'] . ':' . $auth['password']);
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switch ($auth['scheme']) {
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case HTTP_Request2::AUTH_BASIC:
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curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
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break;
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case HTTP_Request2::AUTH_DIGEST:
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curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_DIGEST);
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}
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}
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// set SSL options
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if (0 == strcasecmp($this->request->getUrl()->getScheme(), 'https')) {
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foreach ($this->request->getConfig() as $name => $value) {
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if ('ssl_verify_host' == $name && null !== $value) {
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curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, $value? 2: 0);
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} elseif (isset(self::$sslContextMap[$name]) && null !== $value) {
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curl_setopt($ch, self::$sslContextMap[$name], $value);
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}
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}
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}
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$headers = $this->request->getHeaders();
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// make cURL automagically send proper header
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if (!isset($headers['accept-encoding'])) {
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$headers['accept-encoding'] = '';
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}
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// set headers having special cURL keys
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foreach (self::$headerMap as $name => $option) {
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if (isset($headers[$name])) {
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curl_setopt($ch, $option, $headers[$name]);
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unset($headers[$name]);
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}
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}
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$this->calculateRequestLength($headers);
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// set headers not having special keys
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$headersFmt = array();
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foreach ($headers as $name => $value) {
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$canonicalName = implode('-', array_map('ucfirst', explode('-', $name)));
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$headersFmt[] = $canonicalName . ': ' . $value;
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}
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curl_setopt($ch, CURLOPT_HTTPHEADER, $headersFmt);
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return $ch;
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}
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/**
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* Callback function called by cURL for reading the request body
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*
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* @param resource cURL handle
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* @param resource file descriptor (not used)
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* @param integer maximum length of data to return
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* @return string part of the request body, up to $length bytes
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*/
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protected function callbackReadBody($ch, $fd, $length)
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{
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if (!$this->eventSentHeaders) {
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$this->request->setLastEvent(
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'sentHeaders', curl_getinfo($ch, CURLINFO_HEADER_OUT)
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);
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$this->eventSentHeaders = true;
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}
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if (in_array($this->request->getMethod(), self::$bodyDisallowed) ||
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0 == $this->contentLength || $this->position >= $this->contentLength
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) {
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return '';
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}
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if (is_string($this->requestBody)) {
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$string = substr($this->requestBody, $this->position, $length);
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} elseif (is_resource($this->requestBody)) {
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$string = fread($this->requestBody, $length);
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} else {
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$string = $this->requestBody->read($length);
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}
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$this->request->setLastEvent('sentBodyPart', strlen($string));
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$this->position += strlen($string);
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return $string;
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}
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/**
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* Callback function called by cURL for saving the response headers
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*
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* @param resource cURL handle
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* @param string response header (with trailing CRLF)
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* @return integer number of bytes saved
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* @see HTTP_Request2_Response::parseHeaderLine()
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*/
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protected function callbackWriteHeader($ch, $string)
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{
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// we may receive a second set of headers if doing e.g. digest auth
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if ($this->eventReceivedHeaders || !$this->eventSentHeaders) {
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// don't bother with 100-Continue responses (bug #15785)
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if (!$this->eventSentHeaders ||
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$this->response->getStatus() >= 200
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) {
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$this->request->setLastEvent(
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'sentHeaders', curl_getinfo($ch, CURLINFO_HEADER_OUT)
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);
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}
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$this->eventSentHeaders = true;
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// we'll need a new response object
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if ($this->eventReceivedHeaders) {
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$this->eventReceivedHeaders = false;
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$this->response = null;
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}
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}
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if (empty($this->response)) {
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$this->response = new HTTP_Request2_Response($string, false);
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} else {
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$this->response->parseHeaderLine($string);
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if ('' == trim($string)) {
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// don't bother with 100-Continue responses (bug #15785)
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if (200 <= $this->response->getStatus()) {
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$this->request->setLastEvent('receivedHeaders', $this->response);
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}
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$this->eventReceivedHeaders = true;
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}
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}
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return strlen($string);
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}
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/**
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* Callback function called by cURL for saving the response body
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*
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* @param resource cURL handle (not used)
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* @param string part of the response body
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* @return integer number of bytes saved
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* @see HTTP_Request2_Response::appendBody()
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*/
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protected function callbackWriteBody($ch, $string)
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{
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// cURL calls WRITEFUNCTION callback without calling HEADERFUNCTION if
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// response doesn't start with proper HTTP status line (see bug #15716)
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if (empty($this->response)) {
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throw new HTTP_Request2_Exception("Malformed response: {$string}");
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}
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if ($this->request->getConfig('store_body')) {
|
||
|
|
$this->response->appendBody($string);
|
||
|
|
}
|
||
|
|
$this->request->setLastEvent('receivedBodyPart', $string);
|
||
|
|
return strlen($string);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
?>
|