dolgeoip.class.php

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<?php
/* Copyright (C) 2009-2012  Laurent Destailleur         <eldy@users.sourceforge.net>
 * Copyright (C) 2024       Frédéric France             <frederic.france@free.fr>
 * Copyright (C) 2024   MDW             <mdeweerd@users.noreply.github.com>
 *
 * This program 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.
 *
 * This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
 * or see https://www.gnu.org/
 */
 
class DolGeoIP
{
  public $gi;
 
  public $error;
 
  public $errorlabel;
 
  public function __construct($type, $datfile)
  {
    global $conf;
 
    $geoipversion = '2'; // 'php', or geoip version '2'
    if (getDolGlobalString('GEOIP_VERSION')) {
      $geoipversion = getDolGlobalString('GEOIP_VERSION');
    }
 
    if ($type == 'country') {
      // geoip may have been already included with PEAR
      if ($geoipversion == '2' || ($geoipversion != 'php' && !function_exists('geoip_country_code_by_name'))) {
        if (function_exists('stream_wrapper_restore')) {
          stream_wrapper_restore('phar');
        }
        require_once DOL_DOCUMENT_ROOT.'/includes/geoip2/geoip2.phar';
      }
    } elseif ($type == 'city') {
      // geoip may have been already included with PEAR
      if ($geoipversion == '2' || ($geoipversion != 'php' && !function_exists('geoip_country_code_by_name'))) {
        if (function_exists('stream_wrapper_restore')) {
          stream_wrapper_restore('phar');
        }
        require_once DOL_DOCUMENT_ROOT.'/includes/geoip2/geoip2.phar';
      }
    } else {
      print 'ErrorBadParameterInConstructor';
      return;
    }
 
    // Here, function exists (embedded into PHP or exists because we made include)
    if (empty($type) || empty($datfile)) {
      $this->errorlabel = 'Constructor was called with no datafile parameter';
      dol_syslog('DolGeoIP '.$this->errorlabel, LOG_ERR);
      return;
    }
    if (!file_exists($datfile) || !is_readable($datfile)) {
      $this->error = 'ErrorGeoIPClassNotInitialized';
      $this->errorlabel = "Datafile ".$datfile." not found";
      dol_syslog('DolGeoIP '.$this->errorlabel, LOG_ERR);
      return;
    }
 
    if ($geoipversion == '2') {
      try {
        // @phpstan-ignore-next-line
        $this->gi = new GeoIp2\Database\Reader($datfile); // '/usr/local/share/GeoIP/GeoIP2-City.mmdb'
      } catch (Exception $e) {
        $this->error = $e->getMessage();
        dol_syslog('DolGeoIP '.$this->errorlabel, LOG_ERR);
        return;
      }
    } elseif (function_exists('geoip_open') && defined('GEOIP_STANDARD')) {
      $this->gi = geoip_open($datfile, constant('GEOIP_STANDARD'));
    } elseif (function_exists('geoip_country_code_by_name')) {
      $this->gi = 'NOGI'; // We are using embedded php geoip functions
      //print 'function_exists(geoip_country_code_by_name))='.function_exists('geoip_country_code_by_name');
      //print geoip_database_info();
    } else {
      $this->gi = ''; // For avoid error
    }
  }
 
  public function getCountryCodeFromIP($ip)
  {
    global $conf;
 
    $geoipversion = '2'; // 'php', or '2'
    if (getDolGlobalString('GEOIP_VERSION')) {
      $geoipversion = getDolGlobalString('GEOIP_VERSION');
    }
 
    if (empty($this->gi)) {
      return '';
    }
    if ($this->gi == 'NOGI') {
      // geoip_country_code_by_addr does not exists
      return strtolower(geoip_country_code_by_name($ip));
    } else {
      if (preg_match('/^[0-9]+.[0-9]+\.[0-9]+\.[0-9]+/', $ip)) {
        if ($geoipversion == '2') {
          try {
            $record = $this->gi->country($ip);
            return strtolower($record->country->isoCode);
          } catch (Exception $e) {
            //return $e->getMessage();
            return '';
          }
        } else {
          if (!function_exists('geoip_country_code_by_addr')) {
            return strtolower(geoip_country_code_by_name($ip));
          }
          return strtolower(geoip_country_code_by_addr($this->gi, $ip));
        }
      } else {
        if ($geoipversion == '2') {
          try {
            $record = $this->gi->country($ip);
            return strtolower($record->country->isoCode);
          } catch (Exception $e) {
            //return $e->getMessage();
            return '';
          }
        } else {
          if (function_exists('geoip_country_code_by_addr_v6')) {
            return strtolower(geoip_country_code_by_addr_v6($this->gi, $ip));
          } elseif (function_exists('geoip_country_code_by_name_v6')) {
            return strtolower(geoip_country_code_by_name_v6($this->gi, $ip));
          }
          return '';
        }
      }
    }
  }
 
  public function getCountryCodeFromName($name)
  {
    global $conf;
 
    $geoipversion = '2'; // 'php', or '2'
    if (getDolGlobalString('GEOIP_VERSION')) {
      $geoipversion = getDolGlobalString('GEOIP_VERSION');
    }
 
    if (empty($this->gi)) {
      return '';
    }
 
    if ($geoipversion == '2') {
      try {
        $record = $this->gi->country($name);
        return $record->country->isoCode;
      } catch (Exception $e) {
        //return $e->getMessage();
        return '';
      }
    } else {
      return strtolower(geoip_country_code_by_name($name));
    }
  }
 
  public function getVersion()
  {
    global $conf;
 
    $geoipversion = '2'; // 'php', or '2'
    if (getDolGlobalString('GEOIP_VERSION')) {
      $geoipversion = getDolGlobalString('GEOIP_VERSION');
    }
 
    if ($geoipversion == 'php') {
      if ($this->gi == 'NOGI') {
        return geoip_database_info();
      } else {
        return 'geoip_database_info() function not available';
      }
    }
 
    return 'Not available (not using PHP internal geo functions - We are using embedded Geoip v'.$geoipversion.')';
  }
 
  public function close()
  {
    if (function_exists('geoip_close')) {
      // With some geoip with PEAR, geoip_close function may not exists
      geoip_close($this->gi);
    }
  }
}