<?php

/**

 * Magento

 *

 * NOTICE OF LICENSE

 *

 * This source file is subject to the Open Software License (OSL 3.0)

 * that is bundled with this package in the file LICENSE.txt.

 * It is also available through the world-wide-web at this URL:

 * http://opensource.org/licenses/osl-3.0.php

 * If you did not receive a copy of the license and are unable to

 * obtain it through the world-wide-web, please send an email

 * to license@magentocommerce.com so we can send you a copy immediately.

 *

 * DISCLAIMER

 *

 * Do not edit or add to this file if you wish to upgrade Magento to newer

 * versions in the future. If you wish to customize Magento for your

 * needs please refer to http://www.magentocommerce.com for more information.

 *

 * @category   Varien

 * @package    Varien_Http

 * @copyright  Copyright (c) 2008 Irubin Consulting Inc. DBA Varien (http://www.varien.com)

 * @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)

 */



/**

 * HTTP CURL Adapter

 *

 * @category   Varien

 * @package    Varien_Http

 * @author      Magento Core Team <core@magentocommerce.com>

 */

class Varien_Http_Adapter_Curl implements Zend_Http_Client_Adapter_Interface

{

    /**

     * Parameters array

     *

     * @var array

     */

    protected $_config = array();



    protected $_resource;



    /**

     * Apply current configuration array to transport resource

     */

    protected function _applyConfig()

    {

        //curl_setopt();

        if (isset($this->_config['timeout'])) {

            curl_setopt($this->_getResource(), CURLOPT_TIMEOUT, $this->_config['timeout']);

        }

        if (isset($this->_config['maxredirects'])) {

            curl_setopt($this->_getResource(), CURLOPT_MAXREDIRS, $this->_config['maxredirects']);

        }

        if (isset($this->_config['proxy'])) {

            curl_setopt ($this->_getResource(), CURLOPT_PROXY, $this->_config['proxy']);

        }

        if (isset($this->_config['ssl_cert'])) {

            curl_setopt($this->_getResource(), CURLOPT_SSLCERT, $this->_config['ssl_cert']);

        }



        return $this;

    }



    /**

     * Set the configuration array for the adapter

     *

     * @param array $config

     */

    public function setConfig($config = array())

    {

        $this->_config = $config;

        return $this;

    }



    /**

     * Connect to the remote server

     *

     * @param string  $host

     * @param int     $port

     * @param boolean $secure

     * @deprecated since 1.4.0.0-rc1

     */

    public function connect($host, $port = 80, $secure = false)

    {

        //curl_setopt();

        if (isset($this->_config['timeout'])) {

            curl_setopt($this->_getResource(), CURLOPT_TIMEOUT, $this->_config['timeout']);

        }

        if (isset($this->_config['maxredirects'])) {

            curl_setopt($this->_getResource(), CURLOPT_MAXREDIRS, $this->_config['maxredirects']);

        }

        if (isset($this->_config['proxy'])) {

            curl_setopt ($this->_getResource(), CURLOPT_PROXY, $this->_config['proxy']);

        }



        return $this;

    }



    /**

     * Send request to the remote server

     *

     * @param string        $method

     * @param Zend_Uri_Http $url

     * @param string        $http_ver

     * @param array         $headers

     * @param string        $body

     * @return string Request as text

     */

    public function write($method, $url, $http_ver = '1.1', $headers = array(), $body = '')

    {

        if ($url instanceof Zend_Uri_Http) {

            $url = $url->getUri();

        }

        $this->_applyConfig();



        // set url to post to

        curl_setopt($this->_getResource(), CURLOPT_URL, $url);

        curl_setopt($this->_getResource(), CURLOPT_RETURNTRANSFER, true);

        if ($method == Zend_Http_Client::POST) {

            curl_setopt($this->_getResource(), CURLOPT_POST, true);

            curl_setopt($this->_getResource(), CURLOPT_POSTFIELDS, $body);

        }

        elseif ($method == Zend_Http_Client::GET) {

            curl_setopt($this->_getResource(), CURLOPT_HTTPGET, true);

        }



        if( is_array($headers) ) {

            curl_setopt($this->_getResource(), CURLOPT_HTTPHEADER, $headers);

        }



        curl_setopt($this->_getResource(), CURLOPT_HEADER, true);

        curl_setopt($this->_getResource(), CURLOPT_SSL_VERIFYPEER, 0);

        curl_setopt($this->_getResource(), CURLOPT_SSL_VERIFYHOST, 0);





        return $body;

    }



    /**

     * Read response from server

     *

     * @return string

     */

    public function read()

    {

        $response = curl_exec($this->_getResource());



        // Remove 100 and 101 responses headers

        if (Zend_Http_Response::extractCode($response) == 100 ||

            Zend_Http_Response::extractCode($response) == 101) {

            $response = preg_split('/^\r?$/m', $response, 2);

            $response = trim($response[1]);

        }



        return $response;

    }



    /**

     * Close the connection to the server

     *

     */

    public function close()

    {

        curl_close($this->_getResource());

        $this->_resource = null;

        return $this;

    }



    protected function _getResource()

    {

        if (is_null($this->_resource)) {

            $this->_resource = curl_init();

        }

        return $this->_resource;

    }



    public function getErrno()

    {

        return curl_errno($this->_getResource());

    }



    public function getError()

    {

        return curl_error($this->_getResource());

    }



    /**

     * Get information regarding a specific transfer

     *

     * @param int $opt CURLINFO option

     * @return mixed

     */

    public function getInfo($opt = 0)

    {

        return curl_getinfo($this->_getResource(), $opt);

    }



    /**

     * curl_multi_* requests support

     *

     * @param array $urls

     * @param array $options

     * @return array

     */

    public function multiRequest($urls, $options = array())

    {

        $handles = array();

        $result  = array();



        $multihandle = curl_multi_init();



        foreach ($urls as $key => $url) {

            $handles[$key] = curl_init();

            curl_setopt($handles[$key], CURLOPT_URL,            $url);

            curl_setopt($handles[$key], CURLOPT_HEADER,         0);

            curl_setopt($handles[$key], CURLOPT_RETURNTRANSFER, 1);

            if (!empty($options)) {

                curl_setopt_array($handles[$key], $options);

            }

            curl_multi_add_handle($multihandle, $handles[$key]);

        }

        $process = null;

        do {

            curl_multi_exec($multihandle, $process);

            usleep(100);

        } while ($process>0);



        foreach ($handles as $key => $handle) {

            $result[$key] = curl_multi_getcontent($handle);

            curl_multi_remove_handle($multihandle, $handle);

        }

        curl_multi_close($multihandle);

        return $result;

    }

}