iplookup/index.php

   1 <?php
   2
   3 // This file is part of Moodle - http://moodle.org/
   4 //
   5 // Moodle is free software: you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation, either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // Moodle is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 /**
  19  * Displays IP address on map.
  20  *
  21  * This script is not compatible with IPv6.
  22  *
  23  * @package    core
  24  * @subpackage iplookup
  25  * @copyright  2008 Petr Skoda (http://skodak.org)
  26  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  27  */
  28
  29 require('../config.php');
  30 require_once('lib.php');
  31
  32 require_login();
  33
  34 $ip   = optional_param('ip', getremoteaddr(), PARAM_HOST);
  35 $user = optional_param('user', 0, PARAM_INT);
  36
  37 if (isset($CFG->iplookup)) {
  38     //clean up of old settings
  39     set_config('iplookup', NULL);
  40 }
  41
  42 $PAGE->set_url('/iplookup/index.php', array('id'=>$ip, 'user'=>$user));
  43 $PAGE->set_pagelayout('popup');
  44 $PAGE->set_context(get_context_instance(CONTEXT_SYSTEM));
  45
  46 $info = array($ip);
  47 $note = array();
  48
  49 if (!preg_match('/(^\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/', $ip, $match)) {
  50     print_error('invalidipformat', 'error');
  51 }
  52
  53 if ($match[1] > 255 or $match[2] > 255 or $match[3] > 255 or $match[4] > 255) {
  54     print_error('invalidipformat', 'error');
  55 }
  56
  57 if ($match[1] == '127' or $match[1] == '10' or ($match[1] == '172' and $match[2] >= '16' and $match[2] <= '31') or ($match[1] == '192' and $match[2] == '168')) {
  58     print_error('iplookupprivate', 'error');
  59 }
  60
  61 $info = iplookup_find_location($ip);
  62
  63 if ($info['error']) {
  64     // can not display
  65     notice($info['error']);
  66 }
  67
  68 if ($user) {
  69     if ($user = $DB->get_record('user', array('id'=>$user, 'deleted'=>0))) {
  70         // note: better not show full names to everybody
  71         if (has_capability('moodle/user:viewdetails', get_context_instance(CONTEXT_USER, $user->id))) {
  72             array_unshift($info['title'], fullname($user));
  73         }
  74     }
  75 }
  76 array_unshift($info['title'], $ip);
  77
  78 $title = implode(' - ', $info['title']);
  79 $PAGE->set_title(get_string('iplookup', 'admin').': '.$title);
  80 $PAGE->set_heading($title);
  81 echo $OUTPUT->header();
  82
  83 if (empty($CFG->googlemapkey)) {
  84     $imgwidth  = 620;
  85     $imgheight = 310;
  86     $dotwidth  = 18;
  87     $dotheight = 30;
  88
  89     $dx = round((($info['longitude'] + 180) * ($imgwidth / 360)) - $imgwidth - $dotwidth/2);
  90     $dy = round((($info['latitude'] + 90) * ($imgheight / 180)));
  91
  92     echo '<div id="map" style="width:'.($imgwidth+$dotwidth).'px; height:'.$imgheight.'px;">';
  93     echo '<img src="earth.jpeg" style="width:'.$imgwidth.'px; height:'.$imgheight.'px" alt="" />';
  94     echo '<img src="marker.gif" style="width:'.$dotwidth.'px; height:'.$dotheight.'px; margin-left:'.$dx.'px; margin-bottom:'.$dy.'px;" alt="" />';
  95     echo '</div>';
  96     echo '<div id="note">'.$info['note'].'</div>';
  97
  98 } else {
  99     $PAGE->requires->js(new moodle_url("http://maps.google.com/maps?file=api&v=2&key=$CFG->googlemapkey"));
 100     $module = array('name'=>'core_iplookup', 'fullpath'=>'/iplookup/module.js');
 101     $PAGE->requires->js_init_call('M.core_iplookup.init', array($info['latitude'], $info['longitude']), true, $module);
 102
 103     echo '<div id="map" style="width: 650px; height: 360px"></div>';
 104     echo '<div id="note">'.$info['note'].'</div>';
 105 }
 106
 107 echo $OUTPUT->footer();