mirror of
https://github.com/moodle/moodle.git
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116 lines
4.1 KiB
PHP
116 lines
4.1 KiB
PHP
<?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($CFG->geoipfile) and file_exists($CFG->geoipfile)) {
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require_once('Net/GeoIP.php');
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$geoip = Net_GeoIP::getInstance($CFG->geoipfile, Net_GeoIP::STANDARD);
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$location = $geoip->lookupLocation($ip);
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$geoip->close();
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if (empty($location)) {
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$info['error'] = get_string('iplookupfailed', 'error', $ip);
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return $info;
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}
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if (!empty($location->city)) {
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$info['city'] = textlib::convert($location->city, 'iso-8859-1', 'utf-8');
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$info['title'][] = $info['city'];
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}
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if (!empty($location->country_code)) {
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$countries = get_string_manager()->get_list_of_countries(true);
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if (isset($countries[$location->country_code])) {
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// prefer our localized country names
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$info['country'] = $countries[$location->country_code];
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} else {
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$info['country'] = $location->country_name;
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}
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$info['title'][] = $info['country'];
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}
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$info['longitude'] = $location->longitude;
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$info['latitude'] = $location->latitude;
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$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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$ipdata = download_file_content('http://netgeo.caida.org/perl/netgeo.cgi?target='.$ip);
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if ($ipdata === false) {
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$info['error'] = get_string('cannotnetgeo', 'error');
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return $info;
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}
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$matches = null;
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if (!preg_match('/LAT:\s*(-?\d+\.\d+)/s', $ipdata, $matches)) {
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$info['error'] = get_string('iplookupfailed', 'error', $ip);
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return $info;
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}
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$info['latitude'] = (float)$matches[1];
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if (!preg_match('/LONG:\s*(-?\d+\.\d+)/s', $ipdata, $matches)) {
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$info['error'] = get_string('iplookupfailed', 'error', $ip);
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return $info;
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}
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$info['longitude'] = (float)$matches[1];
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if (preg_match('/CITY:\s*([^<]*)/', $ipdata, $matches)) {
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if (!empty($matches[1])) {
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$info['city'] = s($matches[1]);
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$info['title'][] = $info['city'];
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}
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}
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if (preg_match('/COUNTRY:\s*([^<]*)/', $ipdata, $matches)) {
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if (!empty($matches[1])) {
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$countrycode = $matches[1];
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$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'] = $countrycode;
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}
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$info['title'][] = $info['country'];
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}
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}
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$info['note'] = get_string('iplookupnetgeonote', 'admin');
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return $info;
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}
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} |