source: extensions/database_migration/install.php @ 21623

<?php
// +-----------------------------------------------------------------------+
// | database_migration - a plugin for Piwigo                              |
// +-----------------------------------------------------------------------+
// | Copyright(C) 2010 Nicolas Roudaire             http://www.nikrou.net  |
// +-----------------------------------------------------------------------+
// | This program is free software; you can redistribute it and/or modify  |
// | it under the terms of the GNU General Public License version 2 as     |
// | published by the Free Software Foundation                             |
// |                                                                       |
// | 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, write to the Free Software           |
// | Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,            |
// | MA 02110-1301 USA                                                     |
// +-----------------------------------------------------------------------+

define('PHPWG_ROOT_PATH', '../../');
define('DM_PLUGIN_ROOT', dirname(__FILE__));
define('PHPWG_DEFAULT_LANGUAGE', 'en_UK');

include_once PHPWG_ROOT_PATH . 'include/functions.inc.php';
include_once DM_PLUGIN_ROOT . '/include/config.class.php';

load_language('plugin.lang', DM_PLUGIN_ROOT.'/');

$conf['local_data_dir'] = PHPWG_ROOT_PATH . '_data';
$conf['show_queries'] = false;
$conf['php_extension_in_urls'] = true;
$conf['debug_l10n'] = false;

$response = array();

if (isset($_SERVER['HTTP_X_REQUESTED_WITH'])) {
  $xmlhttprequest = true;
} else {
  $xmlhttprequest = false;
}

$me = new dmConfig(DM_PLUGIN_ROOT, 'database_migration');
$me->load_config();

if (!empty($_POST['dm_key']) && ($_POST['dm_key']==$me->dm_key)) {
  $connection = $me->getConnection($_POST['dblayer']);
  if ($connection==null) {
    addError(l10n('unknown dblayer'));
  } else {
    $dblayer = $_POST['dblayer'];
    include_once PHPWG_ROOT_PATH . 'include/dblayer/functions_'.$dblayer.'.inc.php';

    $pwg_db_link = pwg_db_connect($connection['db_host'], $connection['db_user'], $connection['db_password'], $connection['db_base']);
    $result = execute_sqlfile(PHPWG_ROOT_PATH.'install/piwigo_structure-'.$dblayer.'.sql',
                              'piwigo_',
                              $connection['prefix']);
    if (!$result) {
      addError(l10n('Cannot create struture'));
    } else {
      $structure_file = PHPWG_ROOT_PATH .'/install/piwigo_structure-mysql.sql';
      $content = file_get_contents($structure_file);
      $pattern = '!CREATE TABLE `([^`]*)`!';
      preg_match_all($pattern, $content, $matches);
    
      $Tables = $matches[1];
      $ignoreTables = array('piwigo_history', 'piwigo_history_summary', 'piwigo_sessions', 'piwigo_user_cache', 'piwigo_user_cache_categories');
      $dump_dir = $conf['local_data_dir'].'/plugins/database_migration/';
      foreach ($Tables as $table) {
        if (in_array($table, $ignoreTables)) {
          continue;
        }
        $result = execute_sqlfile("{$dump_dir}/{$table}.dump",
                                  'piwigo_',
                                  $connection['prefix']);
        if (!$result) {
          addError(l10n(sprintf('Cannot import %s content', $table)));
          break;
        }
      }
    }
  }
} else {
  addError(l10n('Hacking attempt!'));
}

if (empty($response)) {
  addInfo(l10n('Import completed'));
}

if ($xmlhttprequest) {
  header("Content-Type: application/json");
  echo json_encode($response);
  exit();
} else {
  echo '<pre>', print_r($response, true), '</pre>';
}

function addError($message) {
  global $response;

  $response['error'] = $message;
}

function addInfo($message) {
  global $response;

  $response['info'] = $message;
}

function execute_sqlfile($filepath, $replaced, $replacing)
{
  $sql_lines = file($filepath);
  $query = '';
  foreach ($sql_lines as $sql_line)
    {
      $sql_line = trim($sql_line);
      if (preg_match('/(^--|^$)/', $sql_line))
        {
          continue;
        }
      $query.= ' '.$sql_line;
      if (preg_match('/;$/', $sql_line))
        {
          $query = trim($query);
          $query = str_replace($replaced, $replacing, $query);
      
          $result = pwg_query($query);  
          $query = '';
        }
    }
  return true;
}
?>