<?php

use common\libraries\Path;

/**
 * Photobucket API 
 * Fluent interface for PHP5
 * fsockopen request method
 * 
 * @author Photobucket
 * @package PBAPI
 * @subpackage Request
 * 
 * @copyright Copyright Copyright (c) 2008, Photobucket, Inc.
 * @license http://www.opensource.org/licenses/mit-license.php The MIT License
 */



/**
 * Load Request parent
 */

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

/**
 * fsockopen request strategy
 * requires ability to use fsockopen
 * 
 * @package PBAPI
 * @subpackage Request
 */

class PBAPI_Request_fsockopen extends PBAPI_Request

{



    /**
     * Do actual request
     *
     * @param string $method
     * @param string $uri
     * @param array $params
     * @return string
     */

    protected function request($method, $uri, $params = array())

    {

        $url = $this->preRequest($method, $uri, $params);

        $parts = parse_url($url);

        

        $len = 0;

        $data = '';

        $resp = '';

        

        //open socket
        if ($fp = @fsockopen($parts['host'], 80))

        {

            

            //generate request headers
            $path = (! empty($parts['path'])) ? $parts['path'] : '';

            $query = (! empty($parts['query'])) ? '?' . $parts['query'] : '';

            fputs($fp, "$method $path$query HTTP/1.1\n");

            fputs($fp, "Host: {$parts['host']}\n");

            fputs($fp, 'User-Agent: ' . __CLASS__ . "\n");

            

            //generate request headers for post
            if ($method == 'POST')

            {

                if (self :: detectFileUploadParams($params))

                {

                    $boundary = uniqid('xx');

                    $data = self :: multipartEncodeParams($this->oauth_request->getParameters(), $boundary);

                    fputs($fp, "Content-Type: multipart/form-data; boundary=$boundary\n");

                }

                else

                {

                    $data = $this->oauth_request->toPostdata();

                    fputs($fp, "Content-type: application/x-www-form-urlencoded\n");

                }

                

                $len = strlen($data);

                fputs($fp, "Content-length: $len\n\n");

                fputs($fp, "$data\n");

            }

            

            //put last newline to signal i'm done
            fputs($fp, "\n");

            

            $headers = true;

            while (! feof($fp))

            {

                $line = fgets($fp); //get lines
                if (trim($line) == '')

                    $headers = false; //empty line will signal that we're done with headers
                else 

                    if (! $headers)

                        $resp .= $line; //dont capture headers to response
            }

            

            //close socket
            fclose($fp);

        }

        else

        {

            throw new PBAPI_Exception('FSOCKOPEN failed'); //todo exception
        }

        

        return $resp;

    }



}