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/home/develito/www/plugins/system/bfnetwork/bfnetwork/bfActivitylog.php

<?php

/**
 * @author    Phil Taylor <phil@phil-taylor.com>
 * @copyright Copyright (C) 2011, 2012, 2013, 2014, 2015 Blue Flame IT Ltd. All rights reserved.
 * @license   Commercial License - Not to be distributed!
 * @link      https://manage.myjoomla.com
 * @source    https://github.com/PhilETaylor/bfnetwork
 *
 */
require_once 'bfPreferences.php';

class bfActivitylog
{
    protected static $instance;
    private $db;
    private $table_create = 'CREATE TABLE IF NOT EXISTS `bf_activitylog` (
                              `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
                              `who` varchar(255) DEFAULT NULL,
                              `who_id` int(11) DEFAULT NULL,
                              `what` varchar(255) DEFAULT NULL,
                              `when` datetime DEFAULT NULL,
                              `where` varchar(255) DEFAULT NULL,
                              `where_id` int(11) DEFAULT NULL,
                              `ip` varchar(20) DEFAULT NULL,
                              `useragent` varchar(255) DEFAULT NULL,
                              `meta` text,
                              `action` varchar(255) DEFAULT NULL,
                              PRIMARY KEY (`id`),
                              KEY `who` (`who`),
                              KEY `who_id` (`who_id`),
                              KEY `when` (`when`)
                            ) DEFAULT CHARSET=utf8';

private $table_insert = 'INSERT INTO `bf_activitylog`
                              (`id`, `who`, `who_id`, `what`, `when`, `where`, `where_id`, `ip`, `useragent`, `meta`,`action`) 
                              VALUES 
                             (NULL, "%s", "%s", "%s", "%s", "%s", "%s", "%s", "%s", %s, "%s")';
    private $prefs;

/**
     * bfActivitylog constructor.
     */
    public function __construct()
    {

$preferences = new bfPreferences();
        $this->prefs = $preferences->getPreferences();
        $this->db = JFactory::getDBO();
        $this->ensureTableCreated();
    }

public function ensureTableCreated()
    {
        $this->db->setQuery($this->table_create);
        if (method_exists($this->db, 'query')) {
            $this->db->query();
        } else {
            $this->db->execute();
        }
    }

public static function getInstance()
    {
        if (!isset(self::$instance)) {
            self::$instance = new bfActivitylog;
        }

return self::$instance;
    }

/**
     * If we get here we are "inside" the Joomla Application API and so all Joomla functions available
     *
     * @param string $who
     * @param int $who_id
     * @param string $what
     * @param string $where
     * @param int $where_id
     * @param null $ip
     * @param null $userAgent
     *
     *
     * @since version
     */
    public function log($who = 'not me!', $who_id = 0, $what = 'dunno', $where = 'er?', $where_id = 0, $ip = NULL, $userAgent = NULL, $meta = '{}', $action = '', $alertName = '')
    {
        $when = JFactory::getDate()->format('Y-m-d H:i:s', TRUE);

if (NULL == $ip) {
            $ip = str_replace('::ffff:', '', (@getenv('HTTP_X_FORWARDED_FOR') ? @getenv('HTTP_X_FORWARDED_FOR') : @$_SERVER['REMOTE_ADDR']));
        }
        if ('system' == $ip) {
            $ip = '';
        }

$sql = sprintf($this->table_insert,
            $who, $who_id, $what, $when, $where, $where_id, $ip, NULL, $this->db->quote($meta), $action
        );

$this->db->setQuery($sql);
        if (method_exists($this->db, 'execute')) {
            $this->db->execute();
        } else {
            $this->db->query();
        }

if (property_exists($this->prefs, $alertName) && $this->prefs->$alertName == 1) {
            $this->sendLogAlert($who, $who_id, $what, $when, $where, $where_id, $ip, $userAgent, $meta, $action, $alertName);
        }
    }

public function sendLogAlert($who = 'not me!', $who_id = 0, $what = 'dunno', $when, $where = 'er?', $where_id = 0, $ip = NULL, $userAgent = NULL, $meta = '{}', $action = '', $alertName = '')
    {
        $host_id = $this->getHostID();

if (!$host_id) return;

$postdata = http_build_query(
            array(
                'HOST_ID'    => $host_id,
                'who'        => $who,
                'who_id'     => $who_id,
                'what'       => $what,
                'what'       => $what,
                'when'       => $when,
                'where'      => $where,
                'where_id'   => $where_id,
                'ip'         => $ip,
                'userAgent'  => $userAgent,
                'meta'       => $meta,
                'action'     => $action,
                'alert_name' => $alertName
            )
        );

$opts = array('http' =>
                          array(
                              'content'       => $postdata,
                              'method'        => 'POST',
                              'user_agent'    => JURI::base(),
                              'max_redirects' => 1,
                              'header'        => 'Content-type: application/x-www-form-urlencoded',
                              'proxy'         => (getenv('APPLICATION_ENV') == 'local' ? 'tcp://127.0.0.1:8888' : ''),
                              'timeout'       => 5, //so we don't destroy live sites if the service is offline
                          )
        );

if (getenv('APPLICATION_ENV') == 'local') {
            return @file_get_contents('https://local-manage.myjoomla.com/api/log', FALSE, stream_context_create($opts));
        } else {
            // Using @ so we don't destroy live sites if the service is offline
            return @file_get_contents('https://manage.myjoomla.com/api/log', FALSE, stream_context_create($opts));
        }
    }

public function getHostID()
    {
        $files = array(
            str_replace('/administrator', '', JPATH_BASE . '/plugins/system/bfnetwork/HOST_ID'),         //Joomla 1.5 gulp
            str_replace('/administrator', '', JPATH_BASE . '/plugins/system/bfnetwork/bfnetwork/HOST_ID')//Joomla 2+
        );

foreach ($files as $file) {
            if (file_exists($file)) {
                return file_get_contents($file);
            }
        }
    }
}