polldaddy api method GetPollResults

polldaddy.php:

<?php
    /**
     * Copyright (c) 2011 Khang Minh <betterwp.net>
     *
     * This program is free software: you can redistribute it and/or modify
     * it under the terms of the GNU General Public License as published by
     * the Free Software Foundation, either version 3 of the License, or
     * (at your option) any later version.
     *
     * This program is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
     * GNU General Public License for more details.
     *
     * You should have received a copy of the GNU General Public License
     * along with this program. If not, see <http://www.gnu.org/licenses/>.
     */
     
    function bwp_get_poll($id = '')
    {
        global $bwp_polldaddy;
     
        $polls = $bwp_polldaddy->get_cached_polls();
     
        if (!empty($id) && isset($polls) && is_array($polls))
        {
            foreach ($polls as $poll)
            {
                if ($id == $poll->id)
                    return $poll;
            }
        }
     
        return '';
    }
     
    function bwp_get_polls($limit = 0, $orderby = '', $order = 'desc')
    {
        global $bwp_polldaddy;
     
        $polls = $bwp_polldaddy->get_cached_polls();
     
        if (!isset($polls) || !is_array($polls)) return array();
     
        // Sort by rand
        if ('rand' == $orderby)
        {
            shuffle($polls);
            return (!empty($limit)) ? array_slice($polls, 0, $limit) : $polls;
        }
     
        // Begin sorting
        $orderby = (empty($orderby) || !in_array($orderby, array('created', 'responses'))) ? 'id' : $orderby;
        $sorted_polls = array();
        foreach ($polls as $poll)
        {
            $sorted_polls[$poll->{$orderby}] = $poll;
        }
        if ('asc' == $order)
            ksort($sorted_polls);
        else
            krsort($sorted_polls);
     
        // Limit result
        return (!empty($limit)) ? array_slice($sorted_polls, 0, $limit) : $sorted_polls;
    }
     
    class BWP_PollDaddy {
     
        var $api_key;
        var $api_host = 'http://api.polldaddy.com/';
        var $user_code;
        var $is_ssl;
        var $polls;
        var $last_updated;
     
        function __construct($api_key, $cache_time = 43200, $is_ssl = false)
        {
            $this->api_key = (!empty($api_key)) ? $api_key : NULL;
            $this->is_ssl = (true == $is_ssl) ? true : false;
            $this->api_host = (true == $this->is_ssl) ? 'https://api.polldaddy.com/' : $this->api_host;
            // Get data
            $this->user_code = get_option('bwp_polldaddy_usercode');
            $this->polls = get_option('bwp_polldaddy_polls');
            $this->last_updated = get_option('bwp_polldaddy_updated');
            // Get all data again if the cache is expired or not found
            // Admin only
            if (is_user_logged_in() && current_user_can('manage_options'))
            {
                $time = time();
                if (empty($this->last_updated) || (!empty($cache_time) && $this->last_updated + $cache_time <= $time))
                {
                    // not really have to update this
                    $this->user_code = $this->get_usercode();
                    if (!empty($this->user_code))
                    {
                        $this->polls = $this->get_polls();
                        $this->last_updated = $time;
                    }
                }
                else
                {
                    $this->user_code = (!$this->user_code) ? $this->get_usercode() : $this->user_code;
                    $this->polls = (!$this->polls || !is_array($this->polls)) ? $this->get_polls() : $this->polls;
                }
                // Update all data
                update_option('bwp_polldaddy_usercode', $this->user_code);
                update_option('bwp_polldaddy_polls', $this->polls);
                update_option('bwp_polldaddy_updated', $this->last_updated);
            }
        }
     
        function do_request($request)
        {
            if (empty($request)) return '';
     
            $response = ''; $result = '';
     
            if (function_exists('wp_remote_post'))
            {
                $response = wp_remote_post(
                    $this->api_host,
                    array(
                        'headers' => array('Content-Type' => 'application/json; charset=utf-8', 'Content-Length' => strlen($request)),
                        'user-agent' => 'PollDaddy PHP Client/1.0',
                        'body' => $request
                    )
                );
     
                if (!$response || is_wp_error($response))
                    return '<strong>Polldaddy Error:</strong> Could not connect to API host or no data found';
     
                $result = wp_remote_retrieve_body($response);
            }
            else
            {
                /* Borrowed from the PollDaddy Polls & Rating Plugin */
                $parsed = parse_url($this->api_host);
                if (!isset($parsed['host']) && !isset($parsed['scheme']))
                    return 'Bad API host';
     
                $fp = fsockopen(
                    $parsed['host'],
                    true == $this->is_ssl ? 443 : 80,
                    $err_num,
                    $err_str,
                    3
                );                     
     
                if (!$fp)
                    return '<strong>Polldaddy Error:</strong> Could not connect to API host';
     
                if (function_exists('stream_set_timeout'))
                    stream_set_timeout($fp, 3);
     
                if (!isset($parsed['path']) || !$path = $parsed['path'] . (isset($parsed['query']) ? '?' . $parsed['query'] : ''))
                    $path = '/';
     
                $header  = "POST $path HTTP/1.0\r\n";
                $header .= "Host: {$parsed['host']}\r\n";
                $header .= "User-agent: PollDaddy PHP Client/1.0\r\n";
                $header .= "Content-Type: application/json; charset=utf-8\r\n";
                $header .= 'Content-Length: ' . strlen($request) . "\r\n";
     
                fwrite($fp, "$header\r\n$request");
     
                $response = '';
                while (!feof($fp))
                    $response .= fread($fp, 4096);
                fclose($fp);
     
                if (!$response)
                    return '<strong>Polldaddy Error:</strong> Could not connect to API host or no data found';
     
                list($headers, $result) = explode("\r\n\r\n", $response, 2);
            }
     
            return json_decode($result);
        }
     
        function get_cached_polls()
        {
            return $this->polls;
        }
     
        function get_polls()
        {
            if (empty($this->user_code))
                return '';
     
            $request = '
                {"pdRequest": {
                    "partnerGUID": "' . $this->api_key . '",
                    "userCode": "' . $this->user_code . '",
                    "demands": {
                        "demand": {
                                "id": "GetPolls"
                            }
                        }
                    }
                }
            ';
     
            $response = $this->do_request($request);
     
            if (!isset($response->pdResponse->demands->demand[0]->polls->poll))
                return '<strong>Polldaddy Error:</strong> There was a problem getting polls.';
     
            return $response->pdResponse->demands->demand[0]->polls->poll;
        }
     
        function get_usercode()
        {
            if (!isset($this->api_key))
                return '';
     
            $request  = '
                {"pdAccess": {
                        "partnerGUID": "' . $this->api_key . '",
                        "partnerUserID": "0",
                        "demands": {
                            "demand": {
                                "id": "GetUserCode"
                            }
                        }
                    }
                }
            ';
     
            $response = $this->do_request($request);
     
            if (!isset($response->pdResponse->userCode))
                return '<strong>Polldaddy Error:</strong> Account inaccessible, please recheck your API key.';
     
            return $response->pdResponse->userCode;
        }
    }
?>





functions.php:

//POLL DADDY
include_once('includes/polldaddy.php');
// cache data for 1 day (86400 seconds)
$bwp_polldaddy = new BWP_PollDaddy('a really long number', 0);

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