507 Zeilen
16 KiB
PHP
507 Zeilen
16 KiB
PHP
<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Http
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* @subpackage Client_Adapter
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* @version $Id$
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* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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/**
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* @see Zend_Uri_Http
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*/
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require_once 'Zend/Uri/Http.php';
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/**
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* @see Zend_Http_Client_Adapter_Interface
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*/
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require_once 'Zend/Http/Client/Adapter/Interface.php';
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/**
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* @see Zend_Http_Client_Adapter_Stream
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*/
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require_once 'Zend/Http/Client/Adapter/Stream.php';
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/**
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* An adapter class for Zend_Http_Client based on the curl extension.
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* Curl requires libcurl. See for full requirements the PHP manual: http://php.net/curl
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*
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* @category Zend
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* @package Zend_Http
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* @subpackage Client_Adapter
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* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Http_Client_Adapter_Curl implements Zend_Http_Client_Adapter_Interface, Zend_Http_Client_Adapter_Stream
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{
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/**
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* Parameters array
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*
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* @var array
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*/
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protected $_config = array();
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/**
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* What host/port are we connected to?
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*
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* @var array
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*/
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protected $_connected_to = array(null, null);
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/**
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* The curl session handle
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*
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* @var resource|null
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*/
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protected $_curl = null;
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/**
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* List of cURL options that should never be overwritten
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*
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* @var array
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*/
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protected $_invalidOverwritableCurlOptions;
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/**
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* Response gotten from server
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*
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* @var string
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*/
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protected $_response = null;
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/**
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* Stream for storing output
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*
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* @var resource
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*/
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protected $out_stream;
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/**
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* Adapter constructor
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*
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* Config is set using setConfig()
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*
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* @return void
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* @throws Zend_Http_Client_Adapter_Exception
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*/
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public function __construct()
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{
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if (!extension_loaded('curl')) {
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require_once 'Zend/Http/Client/Adapter/Exception.php';
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throw new Zend_Http_Client_Adapter_Exception('cURL extension has to be loaded to use this Zend_Http_Client adapter.');
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}
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$this->_invalidOverwritableCurlOptions = array(
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CURLOPT_HTTPGET,
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CURLOPT_POST,
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CURLOPT_PUT,
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CURLOPT_CUSTOMREQUEST,
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CURLOPT_HEADER,
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CURLOPT_RETURNTRANSFER,
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CURLOPT_HTTPHEADER,
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CURLOPT_POSTFIELDS,
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CURLOPT_INFILE,
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CURLOPT_INFILESIZE,
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CURLOPT_PORT,
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CURLOPT_MAXREDIRS,
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CURLOPT_CONNECTTIMEOUT,
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CURL_HTTP_VERSION_1_1,
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CURL_HTTP_VERSION_1_0,
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);
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}
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/**
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* Set the configuration array for the adapter
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*
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* @throws Zend_Http_Client_Adapter_Exception
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* @param Zend_Config | array $config
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* @return Zend_Http_Client_Adapter_Curl
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*/
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public function setConfig($config = array())
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{
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if ($config instanceof Zend_Config) {
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$config = $config->toArray();
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} elseif (! is_array($config)) {
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require_once 'Zend/Http/Client/Adapter/Exception.php';
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throw new Zend_Http_Client_Adapter_Exception(
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'Array or Zend_Config object expected, got ' . gettype($config)
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);
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}
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if(isset($config['proxy_user']) && isset($config['proxy_pass'])) {
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$this->setCurlOption(CURLOPT_PROXYUSERPWD, $config['proxy_user'].":".$config['proxy_pass']);
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unset($config['proxy_user'], $config['proxy_pass']);
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}
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foreach ($config as $k => $v) {
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$option = strtolower($k);
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switch($option) {
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case 'proxy_host':
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$this->setCurlOption(CURLOPT_PROXY, $v);
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break;
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case 'proxy_port':
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$this->setCurlOption(CURLOPT_PROXYPORT, $v);
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break;
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default:
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$this->_config[$option] = $v;
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break;
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}
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}
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return $this;
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}
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/**
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* Retrieve the array of all configuration options
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*
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* @return array
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*/
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public function getConfig()
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{
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return $this->_config;
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}
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/**
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* Direct setter for cURL adapter related options.
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*
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* @param string|int $option
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* @param mixed $value
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* @return Zend_Http_Adapter_Curl
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*/
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public function setCurlOption($option, $value)
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{
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if (!isset($this->_config['curloptions'])) {
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$this->_config['curloptions'] = array();
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}
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$this->_config['curloptions'][$option] = $value;
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return $this;
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}
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/**
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* Initialize curl
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*
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* @param string $host
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* @param int $port
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* @param boolean $secure
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* @return void
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* @throws Zend_Http_Client_Adapter_Exception if unable to connect
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*/
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public function connect($host, $port = 80, $secure = false)
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{
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// If we're already connected, disconnect first
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if ($this->_curl) {
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$this->close();
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}
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// If we are connected to a different server or port, disconnect first
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if ($this->_curl
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&& is_array($this->_connected_to)
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&& ($this->_connected_to[0] != $host
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|| $this->_connected_to[1] != $port)
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) {
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$this->close();
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}
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// Do the actual connection
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$this->_curl = curl_init();
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if ($port != 80) {
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curl_setopt($this->_curl, CURLOPT_PORT, intval($port));
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}
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// Set timeout
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curl_setopt($this->_curl, CURLOPT_CONNECTTIMEOUT, $this->_config['timeout']);
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// Set Max redirects
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curl_setopt($this->_curl, CURLOPT_MAXREDIRS, $this->_config['maxredirects']);
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if (!$this->_curl) {
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$this->close();
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require_once 'Zend/Http/Client/Adapter/Exception.php';
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throw new Zend_Http_Client_Adapter_Exception('Unable to Connect to ' . $host . ':' . $port);
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}
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if ($secure !== false) {
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// Behave the same like Zend_Http_Adapter_Socket on SSL options.
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if (isset($this->_config['sslcert'])) {
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curl_setopt($this->_curl, CURLOPT_SSLCERT, $this->_config['sslcert']);
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}
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if (isset($this->_config['sslpassphrase'])) {
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curl_setopt($this->_curl, CURLOPT_SSLCERTPASSWD, $this->_config['sslpassphrase']);
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}
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}
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// Update connected_to
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$this->_connected_to = array($host, $port);
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}
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/**
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* Send request to the remote server
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*
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* @param string $method
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* @param Zend_Uri_Http $uri
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* @param float $http_ver
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* @param array $headers
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* @param string $body
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* @return string $request
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* @throws Zend_Http_Client_Adapter_Exception If connection fails, connected to wrong host, no PUT file defined, unsupported method, or unsupported cURL option
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*/
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public function write($method, $uri, $httpVersion = 1.1, $headers = array(), $body = '')
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{
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// Make sure we're properly connected
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if (!$this->_curl) {
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require_once 'Zend/Http/Client/Adapter/Exception.php';
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throw new Zend_Http_Client_Adapter_Exception("Trying to write but we are not connected");
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}
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if ($this->_connected_to[0] != $uri->getHost() || $this->_connected_to[1] != $uri->getPort()) {
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require_once 'Zend/Http/Client/Adapter/Exception.php';
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throw new Zend_Http_Client_Adapter_Exception("Trying to write but we are connected to the wrong host");
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}
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// set URL
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curl_setopt($this->_curl, CURLOPT_URL, $uri->__toString());
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// ensure correct curl call
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$curlValue = true;
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switch ($method) {
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case Zend_Http_Client::GET:
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$curlMethod = CURLOPT_HTTPGET;
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break;
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case Zend_Http_Client::POST:
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$curlMethod = CURLOPT_POST;
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break;
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case Zend_Http_Client::PUT:
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// There are two different types of PUT request, either a Raw Data string has been set
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// or CURLOPT_INFILE and CURLOPT_INFILESIZE are used.
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if(is_resource($body)) {
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$this->_config['curloptions'][CURLOPT_INFILE] = $body;
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}
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if (isset($this->_config['curloptions'][CURLOPT_INFILE])) {
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// Now we will probably already have Content-Length set, so that we have to delete it
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// from $headers at this point:
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foreach ($headers AS $k => $header) {
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if (preg_match('/Content-Length:\s*(\d+)/i', $header, $m)) {
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if(is_resource($body)) {
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$this->_config['curloptions'][CURLOPT_INFILESIZE] = (int)$m[1];
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}
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unset($headers[$k]);
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}
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}
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if (!isset($this->_config['curloptions'][CURLOPT_INFILESIZE])) {
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require_once 'Zend/Http/Client/Adapter/Exception.php';
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throw new Zend_Http_Client_Adapter_Exception("Cannot set a file-handle for cURL option CURLOPT_INFILE without also setting its size in CURLOPT_INFILESIZE.");
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}
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if(is_resource($body)) {
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$body = '';
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}
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$curlMethod = CURLOPT_PUT;
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} else {
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$curlMethod = CURLOPT_CUSTOMREQUEST;
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$curlValue = "PUT";
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}
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break;
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case Zend_Http_Client::DELETE:
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$curlMethod = CURLOPT_CUSTOMREQUEST;
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$curlValue = "DELETE";
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break;
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case Zend_Http_Client::OPTIONS:
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$curlMethod = CURLOPT_CUSTOMREQUEST;
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$curlValue = "OPTIONS";
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break;
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case Zend_Http_Client::TRACE:
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$curlMethod = CURLOPT_CUSTOMREQUEST;
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$curlValue = "TRACE";
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break;
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case Zend_Http_Client::HEAD:
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$curlMethod = CURLOPT_CUSTOMREQUEST;
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$curlValue = "HEAD";
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break;
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default:
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// For now, through an exception for unsupported request methods
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require_once 'Zend/Http/Client/Adapter/Exception.php';
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throw new Zend_Http_Client_Adapter_Exception("Method currently not supported");
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}
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if(is_resource($body) && $curlMethod != CURLOPT_PUT) {
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require_once 'Zend/Http/Client/Adapter/Exception.php';
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throw new Zend_Http_Client_Adapter_Exception("Streaming requests are allowed only with PUT");
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}
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// get http version to use
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$curlHttp = ($httpVersion == 1.1) ? CURL_HTTP_VERSION_1_1 : CURL_HTTP_VERSION_1_0;
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// mark as HTTP request and set HTTP method
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curl_setopt($this->_curl, $curlHttp, true);
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curl_setopt($this->_curl, $curlMethod, $curlValue);
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if($this->out_stream) {
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// headers will be read into the response
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curl_setopt($this->_curl, CURLOPT_HEADER, false);
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curl_setopt($this->_curl, CURLOPT_HEADERFUNCTION, array($this, "readHeader"));
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// and data will be written into the file
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curl_setopt($this->_curl, CURLOPT_FILE, $this->out_stream);
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} else {
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// ensure headers are also returned
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curl_setopt($this->_curl, CURLOPT_HEADER, true);
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// ensure actual response is returned
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curl_setopt($this->_curl, CURLOPT_RETURNTRANSFER, true);
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}
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// set additional headers
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$headers['Accept'] = '';
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curl_setopt($this->_curl, CURLOPT_HTTPHEADER, $headers);
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/**
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* Make sure POSTFIELDS is set after $curlMethod is set:
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* @link http://de2.php.net/manual/en/function.curl-setopt.php#81161
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*/
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if ($method == Zend_Http_Client::POST) {
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curl_setopt($this->_curl, CURLOPT_POSTFIELDS, $body);
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} elseif ($curlMethod == CURLOPT_PUT) {
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// this covers a PUT by file-handle:
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// Make the setting of this options explicit (rather than setting it through the loop following a bit lower)
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// to group common functionality together.
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curl_setopt($this->_curl, CURLOPT_INFILE, $this->_config['curloptions'][CURLOPT_INFILE]);
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curl_setopt($this->_curl, CURLOPT_INFILESIZE, $this->_config['curloptions'][CURLOPT_INFILESIZE]);
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unset($this->_config['curloptions'][CURLOPT_INFILE]);
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unset($this->_config['curloptions'][CURLOPT_INFILESIZE]);
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} elseif ($method == Zend_Http_Client::PUT) {
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// This is a PUT by a setRawData string, not by file-handle
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curl_setopt($this->_curl, CURLOPT_POSTFIELDS, $body);
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}
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// set additional curl options
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if (isset($this->_config['curloptions'])) {
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foreach ((array)$this->_config['curloptions'] as $k => $v) {
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if (!in_array($k, $this->_invalidOverwritableCurlOptions)) {
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if (curl_setopt($this->_curl, $k, $v) == false) {
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require_once 'Zend/Http/Client/Exception.php';
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throw new Zend_Http_Client_Exception(sprintf("Unknown or erroreous cURL option '%s' set", $k));
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}
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}
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}
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}
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// send the request
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$response = curl_exec($this->_curl);
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// if we used streaming, headers are already there
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if(!is_resource($this->out_stream)) {
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$this->_response = $response;
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}
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$request = curl_getinfo($this->_curl, CURLINFO_HEADER_OUT);
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$request .= $body;
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if (empty($this->_response)) {
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require_once 'Zend/Http/Client/Exception.php';
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throw new Zend_Http_Client_Exception("Error in cURL request: " . curl_error($this->_curl));
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}
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// cURL automatically decodes chunked-messages, this means we have to disallow the Zend_Http_Response to do it again
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if (stripos($this->_response, "Transfer-Encoding: chunked\r\n")) {
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$this->_response = str_ireplace("Transfer-Encoding: chunked\r\n", '', $this->_response);
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}
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// Eliminate multiple HTTP responses.
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do {
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$parts = preg_split('|(?:\r?\n){2}|m', $this->_response, 2);
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$again = false;
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if (isset($parts[1]) && preg_match("|^HTTP/1\.[01](.*?)\r\n|mi", $parts[1])) {
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$this->_response = $parts[1];
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$again = true;
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}
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} while ($again);
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// cURL automatically handles Proxy rewrites, remove the "HTTP/1.0 200 Connection established" string:
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if (stripos($this->_response, "HTTP/1.0 200 Connection established\r\n\r\n") !== false) {
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$this->_response = str_ireplace("HTTP/1.0 200 Connection established\r\n\r\n", '', $this->_response);
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}
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return $request;
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}
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/**
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* Return read response from server
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*
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* @return string
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*/
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public function read()
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{
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return $this->_response;
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}
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/**
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* Close the connection to the server
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*
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*/
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public function close()
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{
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if(is_resource($this->_curl)) {
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curl_close($this->_curl);
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}
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$this->_curl = null;
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$this->_connected_to = array(null, null);
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}
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/**
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* Get cUrl Handle
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*
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* @return resource
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*/
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public function getHandle()
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{
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return $this->_curl;
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}
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/**
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* Set output stream for the response
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*
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* @param resource $stream
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* @return Zend_Http_Client_Adapter_Socket
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*/
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public function setOutputStream($stream)
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{
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$this->out_stream = $stream;
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return $this;
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}
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/**
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* Header reader function for CURL
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*
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* @param resource $curl
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* @param string $header
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* @return int
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*/
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public function readHeader($curl, $header)
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{
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$this->_response .= $header;
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return strlen($header);
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}
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}
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