analytics_helper.php

<?php
/**
 * @copyright  2020 Podlibre
 * @license    https://www.gnu.org/licenses/agpl-3.0.en.html AGPL3
 * @link       https://castopod.org/
 */

/**
 * Set user country in session variable, for analytics purpose
 */
function set_user_session_country()
{
    $session = \Config\Services::session();
    $session->start();
    $db = \Config\Database::connect();

    $country = 'N/A';

    // Finds country:
    if (!$session->has('country')) {
        try {
            $reader = new \GeoIp2\Database\Reader(
                WRITEPATH . 'uploads/GeoLite2-Country/GeoLite2-Country.mmdb'
            );
            $geoip = $reader->country($_SERVER['REMOTE_ADDR']);
            $country = $geoip->country->isoCode;
        } catch (\Exception $e) {
            // If things go wrong the show must go on and the user must be able to download the file
        }
        $session->set('country', $country);
    }
}

/**
 * Set user player in session variable, for analytics purpose
 */
function set_user_session_player()
{
    $session = \Config\Services::session();
    $session->start();

    if (!$session->has('player')) {
        $session = \Config\Services::session();
        $session->start();

        $playerName = '- Unknown Player -';

        $useragent = $_SERVER['HTTP_USER_AGENT'];

        try {
            $jsonUserAgents = json_decode(
                file_get_contents(
                    WRITEPATH . 'uploads/user-agents/src/user-agents.json'
                ),
                true
            );

            //Search for current HTTP_USER_AGENT in json file:
            foreach ($jsonUserAgents as $player) {
                foreach ($player['user_agents'] as $useragentsRegexp) {
                    //Does the HTTP_USER_AGENT match this regexp:
                    if (preg_match("#{$useragentsRegexp}#", $useragent)) {
                        if (isset($player['bot'])) {
                            //It’s a bot!
                            $playerName = '- Bot -';
                        } else {
                            //It isn’t a bot, we store device/os/app:
                            $playerName =
                                (isset($player['device'])