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MDL-23720 improved iplookup coding style + fixed a potential privacy …
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| <?php | ||
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| // 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/>. | ||
|
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| /** | ||
| * 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 | ||
| */ | ||
|
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||
| defined('MOODLE_INTERNAL') || die(); | ||
|
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| /** | ||
| * Returns location information | ||
| * @param string $ip | ||
| * @return array | ||
| */ | ||
| function iplookup_find_location($ip) { | ||
| 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)) { | ||
| require_once('Net/GeoIP.php'); | ||
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| $textlib = textlib_get_instance(); | ||
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| $geoip = Net_GeoIP::getInstance($CFG->geoipfile, Net_GeoIP::STANDARD); | ||
| $location = $geoip->lookupLocation($ip); | ||
| $geoip->close(); | ||
|
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| if (empty($location)) { | ||
| $info['error'] = get_string('iplookupfailed', 'error', $ip); | ||
| return $info; | ||
| } | ||
| if (!empty($location->city)) { | ||
| $info['city'] = $textlib->convert($location->city, 'iso-8859-1', 'utf-8'); | ||
| $info['title'][] = $info['city']; | ||
| } | ||
|
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| if (!empty($location->country_code)) { | ||
| $countries = get_string_manager()->get_list_of_countries(true); | ||
| if (isset($countries[$location->country_code])) { | ||
| // prefer our localized country names | ||
| $info['country'] = $countries[$location->country_code]; | ||
| } else { | ||
| $info['country'] = $location->country_name; | ||
| } | ||
| $info['title'][] = $info['country']; | ||
| } | ||
| $info['longitude'] = $location->longitude; | ||
| $info['latitude'] = $location->latitude; | ||
| $info['note'] = get_string('iplookupmaxmindnote', 'admin'); | ||
|
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| return $info; | ||
|
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| } else { | ||
| require_once($CFG->libdir.'/filelib.php'); | ||
|
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| $ipdata = download_file_content('http://netgeo.caida.org/perl/netgeo.cgi?target='.$ip); | ||
| if ($ipdata === false) { | ||
| $info['error'] = get_string('cannotnetgeo', 'error'); | ||
| return $info; | ||
| } | ||
| $matches = null; | ||
| if (!preg_match('/LAT:\s*(-?\d+\.\d+)/s', $ipdata, $matches)) { | ||
| $info['error'] = get_string('iplookupfailed', 'error', $ip); | ||
| return $info; | ||
| } | ||
| $info['latitude'] = (float)$matches[1]; | ||
| if (!preg_match('/LONG:\s*(-?\d+\.\d+)/s', $ipdata, $matches)) { | ||
| $info['error'] = get_string('iplookupfailed', 'error', $ip); | ||
| return $info; | ||
| } | ||
| $info['longitude'] = (float)$matches[1]; | ||
|
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| if (preg_match('/CITY:\s*([^<]*)/', $ipdata, $matches)) { | ||
| if (!empty($matches[1])) { | ||
| $info['city'] = s($matches[1]); | ||
| $info['title'][] = $info['city']; | ||
| } | ||
| } | ||
|
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| if (preg_match('/COUNTRY:\s*([^<]*)/', $ipdata, $matches)) { | ||
| if (!empty($matches[1])) { | ||
| $countrycode = $matches[1]; | ||
| $countries = get_string_manager()->get_list_of_countries(true); | ||
| if (isset($countries[$countrycode])) { | ||
| // prefer our localized country names | ||
| $info['country'] = $countries[$countrycode]; | ||
| } else { | ||
| $info['country'] = $countrycode; | ||
| } | ||
| $info['title'][] = $info['country']; | ||
| } | ||
| } | ||
| $info['note'] = get_string('iplookupnetgeonote', 'admin'); | ||
|
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| return $info; | ||
| } | ||
|
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| } |