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<?php

/**

 * Copyright (c) 2007-2011, Servigistics, Inc.

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions are met:

 *

 *  - Redistributions of source code must retain the above copyright notice,

 *    this list of conditions and the following disclaimer.

 *  - Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *  - Neither the name of Servigistics, Inc. nor the names of

 *    its contributors may be used to endorse or promote products derived from

 *    this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE

 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

 * POSSIBILITY OF SUCH DAMAGE.

 *

 * @copyright Copyright 2007-2011 Servigistics, Inc. (http://servigistics.com)

 * @license http://solr-php-client.googlecode.com/svn/trunk/COPYING New BSD

 * @version $Id: $

 *

 * @package Apache

 * @subpackage Solr

 * @author Timo Schmidt <timo.schmidt@aoemedia.de>, Donovan Jimenez <djimenez@conduit-it.com>

 */

// Require Apache_Solr_HttpTransport_Abstract

require_once(dirname(__FILE__) . '/Abstract.php');

/**

 * A Curl based HTTP transport. Uses a single curl session for all requests.

 */

class Apache_Solr_HttpTransport_Curl extends Apache_Solr_HttpTransport_Abstract

{

	/**

	 * SVN Revision meta data for this class

	 */

	const SVN_REVISION = '$Revision:$';

	/**

	 * SVN ID meta data for this class

	 */

	const SVN_ID = '$Id:$';

	/**

	 * Curl Session Handle

	 *

	 * @var resource

	 */

	private $_curl;

	/**

	 * Initializes a curl session

	 */

	public function __construct()

	{

		// initialize a CURL session

		$this->_curl = curl_init();

		// set common options that will not be changed during the session

		curl_setopt_array($this->_curl, array(

			// return the response body from curl_exec

			CURLOPT_RETURNTRANSFER => true,

			// get the output as binary data

			CURLOPT_BINARYTRANSFER => true,

			// we do not need the headers in the output, we get everything we need from curl_getinfo

			CURLOPT_HEADER => false

		));

	}

	/**

	 * Closes a curl session

	 */

	function __destruct()

	{

		// close our curl session

		curl_close($this->_curl);

	}

	public function performGetRequest($url, $timeout = false)

	{

		// check the timeout value

		if ($timeout === false || $timeout <= 0.0)

		{

			// use the default timeout

			$timeout = $this->getDefaultTimeout();

		}

		// set curl GET options

		curl_setopt_array($this->_curl, array(

			// make sure we're returning the body

			CURLOPT_NOBODY => false,

			// make sure we're GET

			CURLOPT_HTTPGET => true,

			// set the URL

			CURLOPT_URL => $url,

			// set the timeout

			CURLOPT_TIMEOUT => $timeout

		));

		// make the request

		$responseBody = curl_exec($this->_curl);

		// get info from the transfer

		$statusCode = curl_getinfo($this->_curl, CURLINFO_HTTP_CODE);

		$contentType = curl_getinfo($this->_curl, CURLINFO_CONTENT_TYPE);

		return new Apache_Solr_HttpTransport_Response($statusCode, $contentType, $responseBody);

	}

	public function performHeadRequest($url, $timeout = false)

	{

		// check the timeout value

		if ($timeout === false || $timeout <= 0.0)

		{

			// use the default timeout

			$timeout = $this->getDefaultTimeout();

		}

		// set curl HEAD options

		curl_setopt_array($this->_curl, array(

			// this both sets the method to HEAD and says not to return a body

			CURLOPT_NOBODY => true,

			// set the URL

			CURLOPT_URL => $url,

			// set the timeout

			CURLOPT_TIMEOUT => $timeout

		));

		// make the request

		$responseBody = curl_exec($this->_curl);

		// get info from the transfer

		$statusCode = curl_getinfo($this->_curl, CURLINFO_HTTP_CODE);

		$contentType = curl_getinfo($this->_curl, CURLINFO_CONTENT_TYPE);

		return new Apache_Solr_HttpTransport_Response($statusCode, $contentType, $responseBody);

	}

	public function performPostRequest($url, $postData, $contentType, $timeout = false)

	{

		// check the timeout value

		if ($timeout === false || $timeout <= 0.0)

		{

			// use the default timeout

			$timeout = $this->getDefaultTimeout();

		}

		// set curl POST options

		curl_setopt_array($this->_curl, array(

			// make sure we're returning the body

			CURLOPT_NOBODY => false,

			// make sure we're POST

			CURLOPT_POST => true,

			// set the URL

			CURLOPT_URL => $url,

			// set the post data

			CURLOPT_POSTFIELDS => $postData,

			// set the content type

			CURLOPT_HTTPHEADER => array("Content-Type: {$contentType}"),

			// set the timeout

			CURLOPT_TIMEOUT => $timeout

		));

		// make the request

		$responseBody = curl_exec($this->_curl);

		// get info from the transfer

		$statusCode = curl_getinfo($this->_curl, CURLINFO_HTTP_CODE);

		$contentType = curl_getinfo($this->_curl, CURLINFO_CONTENT_TYPE);

		return new Apache_Solr_HttpTransport_Response($statusCode, $contentType, $responseBody);

	}

}