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107 lines
3.6 KiB
107 lines
3.6 KiB
2 years ago
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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* IP Lookup utility functions
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*
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* @package core
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* @subpackage iplookup
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* @copyright 2010 Petr Skoda {@link http://skodak.org}
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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defined('MOODLE_INTERNAL') || die();
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/**
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* Returns location information
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* @param string $ip
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* @return array
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*/
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function iplookup_find_location($ip) {
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global $CFG;
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$info = array('city'=>null, 'country'=>null, 'longitude'=>null, 'latitude'=>null, 'error'=>null, 'note'=>'', 'title'=>array());
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if (!empty($CFG->geoip2file) and file_exists($CFG->geoip2file)) {
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$reader = new GeoIp2\Database\Reader($CFG->geoip2file);
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$record = $reader->city($ip);
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if (empty($record)) {
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$info['error'] = get_string('iplookupfailed', 'error', $ip);
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return $info;
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}
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$info['city'] = core_text::convert($record->city->name, 'iso-8859-1', 'utf-8');
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$info['title'][] = $info['city'];
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$countrycode = $record->country->isoCode;
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$countries = get_string_manager()->get_list_of_countries(true);
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if (isset($countries[$countrycode])) {
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// Prefer our localized country names.
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$info['country'] = $countries[$countrycode];
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} else {
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$info['country'] = $record->country->names['en'];
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}
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$info['title'][] = $info['country'];
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$info['longitude'] = $record->location->longitude;
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$info['latitude'] = $record->location->latitude;
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$info['note'] = get_string('iplookupmaxmindnote', 'admin');
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return $info;
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} else {
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require_once($CFG->libdir.'/filelib.php');
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if (strpos($ip, ':') !== false) {
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// IPv6 is not supported by geoplugin.net.
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$info['error'] = get_string('invalidipformat', 'error');
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return $info;
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}
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$ipdata = download_file_content('http://www.geoplugin.net/json.gp?ip='.$ip);
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if ($ipdata) {
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$ipdata = preg_replace('/^geoPlugin\((.*)\)\s*$/s', '$1', $ipdata);
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$ipdata = json_decode($ipdata, true);
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}
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if (!is_array($ipdata)) {
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$info['error'] = get_string('cannotgeoplugin', 'error');
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return $info;
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}
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$info['latitude'] = (float)$ipdata['geoplugin_latitude'];
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$info['longitude'] = (float)$ipdata['geoplugin_longitude'];
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$info['city'] = s($ipdata['geoplugin_city']);
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$countrycode = $ipdata['geoplugin_countryCode'];
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$countries = get_string_manager()->get_list_of_countries(true);
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if (isset($countries[$countrycode])) {
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// prefer our localized country names
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$info['country'] = $countries[$countrycode];
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} else {
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$info['country'] = s($ipdata['geoplugin_countryName']);
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}
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$info['note'] = get_string('iplookupgeoplugin', 'admin');
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$info['title'][] = $info['city'];
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$info['title'][] = $info['country'];
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return $info;
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}
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}
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