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   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  /**
  18   * Displays IP address on map.
  19   *
  20   * This script is not compatible with IPv6.
  21   *
  22   * @package    core_iplookup
  23   * @copyright  2008 Petr Skoda (http://skodak.org)
  24   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  25   */
  26  
  27  require('../config.php');
  28  require_once ('lib.php');
  29  
  30  require_login(0, false);
  31  if (isguestuser()) {
  32      // Guest users cannot perform lookups.
  33      throw new require_login_exception('Guests are not allowed here.');
  34  }
  35  
  36  $ip   = optional_param('ip', getremoteaddr(), PARAM_HOST);
  37  $user = optional_param('user', 0, PARAM_INT);
  38  
  39  if (isset($CFG->iplookup)) {
  40      // Clean up of old settings.
  41      set_config('iplookup', NULL);
  42  }
  43  
  44  $PAGE->set_url('/iplookup/index.php', array('id'=>$ip, 'user'=>$user));
  45  $PAGE->set_pagelayout('popup');
  46  $PAGE->set_context(context_system::instance());
  47  
  48  $info = array($ip);
  49  $note = array();
  50  
  51  if (!preg_match('/(^\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/', $ip, $match)) {
  52      print_error('invalidipformat', 'error');
  53  }
  54  
  55  if ($match[1] > 255 or $match[2] > 255 or $match[3] > 255 or $match[4] > 255) {
  56      print_error('invalidipformat', 'error');
  57  }
  58  
  59  if ($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')) {
  60      print_error('iplookupprivate', 'error');
  61  }
  62  
  63  $info = iplookup_find_location($ip);
  64  
  65  if ($info['error']) {
  66      // Can not display.
  67      notice($info['error']);
  68  }
  69  
  70  if ($user) {
  71      if ($user = $DB->get_record('user', array('id'=>$user, 'deleted'=>0))) {
  72          // note: better not show full names to everybody
  73          if (has_capability('moodle/user:viewdetails', context_user::instance($user->id))) {
  74              array_unshift($info['title'], fullname($user));
  75          }
  76      }
  77  }
  78  array_unshift($info['title'], $ip);
  79  
  80  $title = implode(' - ', $info['title']);
  81  $PAGE->set_title(get_string('iplookup', 'admin').': '.$title);
  82  $PAGE->set_heading($title);
  83  echo $OUTPUT->header();
  84  
  85  if (empty($CFG->googlemapkey3)) {
  86      $imgwidth  = 620;
  87      $imgheight = 310;
  88      $dotwidth  = 18;
  89      $dotheight = 30;
  90  
  91      $dx = round((($info['longitude'] + 180) * ($imgwidth / 360)) - $imgwidth - $dotwidth/2);
  92      $dy = round((($info['latitude'] + 90) * ($imgheight / 180)));
  93  
  94      echo '<div id="map" style="width:'.($imgwidth+$dotwidth).'px; height:'.$imgheight.'px;">';
  95      echo '<img src="earth.jpeg" style="width:'.$imgwidth.'px; height:'.$imgheight.'px" alt="" />';
  96      echo '<img src="marker.gif" style="width:'.$dotwidth.'px; height:'.$dotheight.'px; margin-left:'.$dx.'px; margin-bottom:'.$dy.'px;" alt="" />';
  97      echo '</div>';
  98      echo '<div id="note">'.$info['note'].'</div>';
  99  
 100  } else {
 101      if (is_https()) {
 102          $PAGE->requires->js(new moodle_url('https://maps.googleapis.com/maps/api/js', array('key'=>$CFG->googlemapkey3, 'sensor'=>'false')));
 103      } else {
 104          $PAGE->requires->js(new moodle_url('http://maps.googleapis.com/maps/api/js', array('key'=>$CFG->googlemapkey3, 'sensor'=>'false')));
 105      }
 106      $module = array('name'=>'core_iplookup', 'fullpath'=>'/iplookup/module.js');
 107      $PAGE->requires->js_init_call('M.core_iplookup.init3', array($info['latitude'], $info['longitude'], $ip), true, $module);
 108  
 109      echo '<div id="map" style="width: 650px; height: 360px"></div>';
 110      echo '<div id="note">'.$info['note'].'</div>';
 111  }
 112  
 113  echo $OUTPUT->footer();