install/upgrade.php
author Dan
Sun, 25 Jan 2009 20:24:38 -0500
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<?php
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/*
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 * Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
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 * Version 1.1.6 (Caoineag beta 1)
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 * Copyright (C) 2006-2008 Dan Fuhry
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 * Installation package
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 * upgrade.php - Upgrade interface
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 *
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 * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
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 */
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define('IN_ENANO', 1);
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// The list of versions in THIS AND PREVIOUS branches, in chronological order.
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$enano_versions = array();
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$enano_versions['1.0'] = array('1.0', '1.0.1', '1.0.2b1', '1.0.2', '1.0.3', '1.0.4', '1.0.5');
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$enano_versions['1.1'] = array('1.1.1', '1.1.2', '1.1.3', '1.1.4', '1.1.5', '1.1.6');
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// Turn on every imaginable API hack to make common load on older databases
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define('IN_ENANO_UPGRADE', 1);
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define('IN_ENANO_MIGRATION', 1);
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define('ENANO_ALLOW_LOAD_NOLANG', 1);
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@ini_set('display_errors', 'on');
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// Load installer files
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require_once('../includes/sql_parse.php');
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require_once('includes/common.php');
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require_once('includes/libenanoinstall.php');
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// when the installer's common is loaded, it runs chdir() to the ENANO_ROOT, thus making this Enano's common.php
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// PHP5 notice removed in 1.1.4 since the existing common is loaded and that loads lang and json2, which will
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// give syntax errors on PHP4. So much for that. The installer will warn about this anyway.
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require_once('includes/common.php');
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@ini_set('display_errors', 'on');
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define('ENANO_UPGRADE_USE_AES_PASSWORDS', in_array(enano_version(), array('1.0RC1', '1.0RC2', '1.0RC3', '1.0', '1.0.1', '1.0.2', '1.0.3', '1.0.4', '1.0.5', '1.1.1', '1.1.2', '1.1.3', '1.1.4', '1.1.5')));
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$ui = new Enano_Installer_UI('Enano upgrader', false);
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$stg_welcome = $ui->add_stage('Welcome', true);
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$stg_confirm = $ui->add_stage('Confirmation', true);
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$stg_upgrade = $ui->add_stage('Perform upgrade', true);
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$stg_finish  = $ui->add_stage('Finish', true);
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// init languages
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$lang_id_list = array_keys($languages);
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$lang_id = $lang_id_list[0];
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$language_dir = $languages[$lang_id]['dir'];
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// load the language file
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$lang = new Language($lang_id);
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$lang->load_file(ENANO_ROOT . '/language/' . $language_dir . '/install.json');
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$lang->load_file(ENANO_ROOT . '/language/' . $language_dir . '/user.json');
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// Version check
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if ( enano_version() == installer_enano_version() )
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{
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  $ui->show_header();
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  $link_home = makeUrl(get_main_page(), false, true);
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  echo '<h3>' . $lang->get('upgrade_err_current_title') . '</h3>' .
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       '<p>' . $lang->get('upgrade_err_current_body', array('mainpage_link' => $link_home)) . '</p>' .
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       '<p>' . $lang->get('upgrade_err_current_body_para2', array('mainpage_link' => $link_home)) . '</p>';
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  $ui->show_footer();
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  exit();
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}
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// Start session manager
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$session->start();
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if ( !$session->user_logged_in || ( $session->user_logged_in && $session->auth_level < USER_LEVEL_ADMIN ) )
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{
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  if ( isset($_POST['do_login']) )
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  {
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    if ( !$session->user_logged_in )
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    {
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      $result = $session->login_without_crypto($_POST['username'], $_POST['password'], false, USER_LEVEL_MEMBER);
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    }
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    if ( !isset($result) || ( isset($result) && $result['success']) )
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    {
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      $result = $session->login_without_crypto($_POST['username'], $_POST['password'], false, USER_LEVEL_ADMIN);
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      if ( $result['success'] )
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      {
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        header('HTTP/1.1 302 Some kind of redirect with implied no content');
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        header('Location: ' . scriptPath . '/install/' . $session->append_sid('upgrade.php'));
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        exit();
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      }
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    }
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  }
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    93
  
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  $ui->show_header();
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    95
  
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  ?>
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  <h3><?php echo $lang->get('upgrade_login_msg_auth_needed_title'); ?></h3>
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  <?php
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  echo '<form action="upgrade.php" method="post">';
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  if ( isset($result) )
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  {
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    echo '<b>' . $lang->get('upgrade_login_err_failed', array('error_code' => $result['error'])) . '</b>';
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  }
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  ?>
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  <p><?php
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  if ( $session->user_logged_in )
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  {
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    echo $lang->get('upgrade_login_msg_auth_needed_body_level2');
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  }
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  else
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  {
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    echo $lang->get('upgrade_login_msg_auth_needed_body_level1');
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  }
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  ?></p>
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  <table border="0" cellspacing="0" cellpadding="5" style="margin: 0 auto;">
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  <tr>
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    <td><?php echo $lang->get('user_login_field_username'); ?>:</td>
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    <td><input type="text" name="username" tabindex="1" /></td>
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  </tr>
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  <tr>
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    <td><?php echo $lang->get('user_login_field_password'); ?>:</td>
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    <td><input type="password" name="password" tabindex="2" /></td>
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  </tr>
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  <tr>
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    <td colspan="2" style="text-align: center;">
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      <input type="submit" name="do_login" value="<?php echo $lang->get('upgrade_login_btn_login'); ?>" tabindex="3" />
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    </td>
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  </tr>
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  </table>
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  <?php
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  echo '</form>';
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  $ui->show_footer();
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  exit();
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}
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if ( isset($_GET['stage']) && @$_GET['stage'] == 'pimpmyenano' )
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{
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  $ui->set_visible_stage($stg_upgrade);
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}
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else if ( isset($_GET['stage']) && @$_GET['stage'] == 'postpimp' )
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{
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  $ui->set_visible_stage($stg_finish);
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}
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else
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{
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  $ui->set_visible_stage($stg_confirm);
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}
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// The real migration code
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$ui->show_header();
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if ( isset($_GET['stage']) && @$_GET['stage'] == 'pimpmyenano' )
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{
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  /*
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   HOW DOES ENANO'S UPGRADER WORK?
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   Versions of Enano are organized into branches and then specific versions by
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   version number. The upgrader works by using a list of known version numbers
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   and then systematically executing upgrade schemas for each version.
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   When the user requests an upgrade, the first thing performed is a migration
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   check, which verifies that they are within the right branch. If they are not
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   within the right branch the upgrade framework will load a migration script
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   which will define a function named MIGRATE(). Performing more than one
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   migration in one pass will probably never be supported. How that works for
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   UX in 1.3.x/1.4.x I know not yet.
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   After performing any necessary branch migrations, the framework will perform
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   any upgrades within the target branch, which is the first two parts
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   (delimited by periods) of the installer's version number defined in the
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   installer's common.php.
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   enano_perform_upgrade() will only do upgrades. Not migrations. The two as
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   illustrated within this installer are very different.
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   */
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  // Do we need to run the migration first?
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  list($major_version, $minor_version) = explode('.', preg_replace('/^upg-/', '', enano_version()));
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  $current_branch = "$major_version.$minor_version";
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  list($major_version, $minor_version) = explode('.', installer_enano_version());
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  $target_branch = "$major_version.$minor_version";
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  if ( $target_branch != $current_branch )
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  {
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    // First upgrade to the latest revision of the current branch
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    enano_perform_upgrade($current_branch);
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    // Branch migration could be tricky and is often highly specific between
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    // major branches, so just include a custom migration script.
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    require(ENANO_ROOT . "/install/schemas/upgrade/migration/{$current_branch}-{$target_branch}.php");
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    $result = MIGRATE();
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    if ( !$result )
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    {
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      echo 'Migration failed, there should be an error message above.';
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      $ui->show_footer();
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      exit;
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    }
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  }
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  // Do the actual upgrade
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  enano_perform_upgrade($target_branch);
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  // Mark as upgrade-in-progress
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  setConfig('enano_version', 'upg-' . installer_enano_version());
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  ?>
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  <h3>
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    <?php echo $lang->get('upgrade_msg_schema_complete_title'); ?>
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  </h3>
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  <p>
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    <?php echo $lang->get('upgrade_msg_schema_complete_body'); ?>
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  </p>
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  <form action="upgrade.php" method="get" style="text-align: center;">
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    <input type="hidden" name="auth" value="<?php echo $session->sid_super; ?>" />
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    <p style="text-align: center;">
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      <button name="stage" value="postpimp" class="submit">
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        <?php echo $lang->get('upgrade_btn_continue'); ?>
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      </button>
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    </p>
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  </form>
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  <?php
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}
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else if ( isset($_GET['stage']) && @$_GET['stage'] == 'postpimp' )
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{
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  // verify version
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  if ( enano_version() != 'upg-' . installer_enano_version() )
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  {
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    echo '<p>' . $lang->get('upgrade_err_post_not_available') . '</p>';
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    $ui->show_footer();
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    $db->close();
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    exit();
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  }
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  function stg_load_files()
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  {
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    if ( !@include( ENANO_ROOT . "/install/includes/payload.php" ) )
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      return false;
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    return true;
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  }
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  echo '<h3>' . $lang->get('upgrade_post_status_title') . '</h3>';
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  echo '<p>' . $lang->get('upgrade_post_status_body') . '</p>';
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  start_install_table();
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  run_installer_stage('load', $lang->get('install_stg_load_title'), 'stg_load_files', $lang->get('install_stg_load_body'), false);
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  run_installer_stage('importlang', $lang->get('install_stg_importlang_title'), 'stg_lang_import', $lang->get('install_stg_importlang_body'));
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  run_installer_stage('flushcache', $lang->get('upgrade_stg_flushcache_title'), 'stg_flush_cache', $lang->get('upgrade_stg_flushcache_body'));
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  run_installer_stage('setversion', $lang->get('upgrade_stg_setversion_title'), 'stg_set_version', $lang->get('upgrade_stg_setversion_body'));
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  close_install_table();
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   256
  
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  // demote privileges
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  $session->logout(USER_LEVEL_ADMIN);
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  $link_home = makeUrl(get_main_page(), false, true);
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  echo '<h3>' . $lang->get('upgrade_post_status_finish_title') . '</h3>';
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  echo '<p>' . $lang->get('upgrade_post_status_finish_body', array('mainpage_link' => $link_home)) . '</p>';
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}
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else
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{
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  ?>
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  <h3><?php echo $lang->get('upgrade_confirm_title'); ?></h3>
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  <p><?php echo $lang->get('upgrade_confirm_body', array('enano_version' => installer_enano_version())); ?></p>
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  <ul>
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    <li><?php echo $lang->get('upgrade_confirm_objective_backup_fs', array('dir' => ENANO_ROOT)); ?></li>
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    <li><?php echo $lang->get('upgrade_confirm_objective_backup_db', array('dbname' => $dbname)); ?></li>
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  </ul>
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  <form method="get" action="upgrade.php" style="text-align: center;">
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    <input type="hidden" name="auth" value="<?php echo $session->sid_super; ?>" />
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    <button name="stage" value="pimpmyenano" class="submit">
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      <img src="images/icons/pimp.png" />
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      <?php echo $lang->get('upgrade_confirm_btn_upgrade'); ?>
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    </button>
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  </form>
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  <?php
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   281
}
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354
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$ui->show_footer();
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