Proyectos de Subversion Moodle

<?php

// This file is part of Moodle - http://moodle.org/

//

// Moodle 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.

//

// Moodle 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 Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**

 * IP Lookup utility functions

 *

 * @package    core

 * @subpackage iplookup

 * @copyright  2010 Petr Skoda {@link http://skodak.org}

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

defined('MOODLE_INTERNAL') || die();

/**

 * Returns location information

 * @param string $ip

 * @return array

 */

function iplookup_find_location($ip) {

    global $CFG;

    $info = array('city'=>null, 'country'=>null, 'longitude'=>null, 'latitude'=>null, 'error'=>null, 'note'=>'',  'title'=>array());

    if (!empty($CFG->geoip2file) and file_exists($CFG->geoip2file)) {

        $reader = new GeoIp2\Database\Reader($CFG->geoip2file);

        $record = $reader->city($ip);

        if (empty($record)) {

            $info['error'] = get_string('iplookupfailed', 'error', $ip);

            return $info;

        }

        $info['city'] = core_text::convert($record->city->name, 'iso-8859-1', 'utf-8');

        $info['title'][] = $info['city'];

        $countrycode = $record->country->isoCode;

        $countries = get_string_manager()->get_list_of_countries(true);

        if (isset($countries[$countrycode])) {

            // Prefer our localized country names.

            $info['country'] = $countries[$countrycode];

        } else {

            $info['country'] = $record->country->names['en'];

        }

        $info['title'][] = $info['country'];

        $info['longitude'] = $record->location->longitude;

        $info['latitude'] = $record->location->latitude;

        $info['note'] = get_string('iplookupmaxmindnote', 'admin');

        return $info;

    } else if (!empty($CFG->geopluginapikey)) {

        require_once($CFG->libdir.'/filelib.php');

        if (strpos($ip, ':') !== false) {

            // IPv6 is not supported by geoplugin.net.

            $info['error'] = get_string('invalidipformat', 'error');

            return $info;

        }

        $requesturl = new moodle_url('https://api.geoplugin.com', ['ip' => $ip, 'auth' => $CFG->geopluginapikey]);

        $response = download_file_content($requesturl->out(false), null, null, true);

        if ($response->response_code != 200) {

            $info['error'] = get_string('cannotgeoplugin', 'error');

            return $info;

        }

        $ipdata = json_decode($response->results, true);

        if (!is_array($ipdata)) {

            $info['error'] = get_string('cannotgeoplugin', 'error');

            return $info;

        }

        $info['latitude'] = (float)$ipdata['geoplugin_latitude'];

        $info['longitude'] = (float)$ipdata['geoplugin_longitude'];

        $info['city'] = s($ipdata['geoplugin_city']);

        $info['accuracyRadius'] = (int)$ipdata['geoplugin_locationAccuracyRadius']; // Unit is in Miles.

        $countrycode = $ipdata['geoplugin_countryCode'];

        $countries = get_string_manager()->get_list_of_countries(true);

        if (isset($countries[$countrycode])) {

            // prefer our localized country names

            $info['country'] = $countries[$countrycode];

        } else {

            $info['country'] = s($ipdata['geoplugin_countryName']);

        }

        $info['note'] = get_string('iplookupgeoplugin', 'admin');

        $info['title'][] = $info['city'];

        $info['title'][] = $info['country'];

        return $info;

    }

    $info['error'] = get_string('iplookupfailed', 'error', $ip);

    return $info;

}