+
−<?php
+
−
+
−/*
+
− * Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
+
− * Version 1.1.1
+
− * Copyright (C) 2006-2007 Dan Fuhry
+
− * Installation package
+
− * upgrade.php - Upgrade interface
+
− *
+
− * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
+
− * as published by the Free Software Foundation; either version 2 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 details.
+
− */
+
−
+
−define('IN_ENANO', 1);
+
−
+
−// The list of versions in THIS BRANCH, in chronological order.
+
−$enano_versions = array('1.1.1', '1.1.2', '1.1.3');
+
−
+
−// Turn on every imaginable API hack to make common load on older databases
+
−define('IN_ENANO_UPGRADE', 1);
+
−define('IN_ENANO_MIGRATION', 1);
+
−define('ENANO_ALLOW_LOAD_NOLANG', 1);
+
−@ini_set('display_errors', 'on');
+
−
+
−require('includes/sql_parse.php');
+
−
+
−require_once('includes/common.php');
+
−// when the installer's common is loaded, it runs chdir() to the ENANO_ROOT, thus making this Enano's common.php
+
−require_once('includes/common.php');
+
−@ini_set('display_errors', 'on');
+
−
+
−$ui = new Enano_Installer_UI('Enano upgrader', false);
+
−if ( version_compare(PHP_VERSION, '5.0.0', '<') )
+
−{
+
−  $ui->__construct('Enano upgrader', false);
+
−}
+
−$stg_welcome = $ui->add_stage('Welcome', true);
+
−$stg_confirm = $ui->add_stage('Confirmation', true);
+
−$stg_upgrade = $ui->add_stage('Perform upgrade', true);
+
−$stg_finish  = $ui->add_stage('Finish', true);
+
−$stg_php4 = $ui->add_stage('PHP4 compatibility notice', false);
+
−
+
−if ( version_compare(PHP_VERSION, '5.0.0', '<') || isset($_GET['debug_warn_php4']) )
+
−{
+
−  $ui->set_visible_stage($stg_php4);
+
−  $ui->step = '';
+
−  
+
−  $ui->show_header();
+
−  
+
−  // This isn't localized because all localization code is dependent on
+
−  // PHP 5 (loading lang.php will throw a parser error under PHP4). This
+
−  // one message probably doesn't need to be localized anyway.
+
−  
+
−  ?>
+
−  <h2 class="heading-error">
+
−    Your server doesn't have support for PHP 5.
+
−  </h2>
+
−  <p>
+
−    PHP 5 is the latest version of the language on which Enano was built. Its many new features have been available since early 2004, yet
+
−    many web hosts have not migrated to it because of the work involved. In 2007, Zend Corporation announced that support for the aging
+
−    PHP 4.x would be discontinued at the end of the year. An initiative called <a href="http://gophp5.org/">GoPHP5</a> was started to
+
−    encourage web hosts to migrate to PHP 5.
+
−  </p>
+
−  <p>
+
−    Because of the industry's decision to not support PHP 4 any longer, the Enano team decided that it was time to begin using the powerful
+
−    features of PHP 5 at the expense of PHP 4 compatibility. Therefore, this version of Enano cannot be installed on your server until it
+
−    is upgraded to at least PHP 5.0.0, and preferably the latest available version.
+
−    <!-- No, not even removing the check in this installer script will help. As soon as the PHP4 check is passed, the installer shows the
+
−         language selection page, after which the language code is loaded. The language code and libjson2 will trigger parse errors under
+
−         PHP <5.0.0. -->
+
−  </p>
+
−  <p>
+
−    If you need to use Enano but can't upgrade your PHP because you're on a shared or reseller hosting service, you can use the
+
−    <a href="http://enanocms.org/download?series=1.0">1.0.x series of Enano</a> on your site. While the Enano team attempts to make this
+
−    older series work on PHP 4, official support is not provided for installations of Enano on PHP 4.
+
−  </p>
+
−  <?php
+
−  
+
−  $ui->show_footer();
+
−  exit(0);
+
−}
+
−
+
−// Version check
+
−if ( enano_version() == installer_enano_version() )
+
−{
+
−  $ui->show_header();
+
−  echo '<h3>Already upgraded</h3>' . '<p>You don\'t need to migrate, you\'re already on <del>crack</del> the 1.1 platform.</p>';
+
−  $ui->show_footer();
+
−  exit();
+
−}
+
−
+
−// Start session manager
+
−$session->start();
+
−if ( !$session->user_logged_in || ( $session->user_logged_in && $session->auth_level < USER_LEVEL_ADMIN ) )
+
−{
+
−  if ( isset($_POST['do_login']) )
+
−  {
+
−    if ( !$session->user_logged_in )
+
−    {
+
−      $result = $session->login_without_crypto($_POST['username'], $_POST['password'], false, USER_LEVEL_MEMBER);
+
−    }
+
−    $result = $session->login_without_crypto($_POST['username'], $_POST['password'], false, USER_LEVEL_ADMIN);
+
−    if ( $result['success'] )
+
−    {
+
−      header('HTTP/1.1 302 Some kind of redirect with implied no content');
+
−      header('Location: ' . scriptPath . '/install/' . $session->append_sid('upgrade.php'));
+
−      exit();
+
−    }
+
−  }
+
−  
+
−  $ui->show_header();
+
−  
+
−  ?>
+
−  <h3>Authentication needed</h3>
+
−  <?php
+
−  
+
−  echo '<form action="upgrade.php" method="post">';
+
−  
+
−  if ( isset($result) )
+
−  {
+
−    echo '<b>Session manager returned error: ' . $result['error'] . '</b>';
+
−  }
+
−  
+
−  ?>
+
−  <p>You need an active admin session to continue.</p>
+
−  <p>
+
−    Username:&nbsp;&nbsp;&nbsp;<input type="text" name="username" /><br />
+
−    Password:&nbsp;&nbsp;&nbsp;<input type="password" name="password" /><br />
+
−    <input type="submit" name="do_login" value="Log in" />
+
−  </p>
+
−  <?php
+
−  
+
−  echo '</form>';
+
−  
+
−  $ui->show_footer();
+
−  exit();
+
−}
+
−
+
−if ( isset($_GET['stage']) && @$_GET['stage'] == 'pimpmyenano' )
+
−{
+
−  $ui->set_visible_stage($stg_upgrade);
+
−}
+
−else
+
−{
+
−  $ui->set_visible_stage($stg_confirm);
+
−}
+
−
+
−// The real migration code
+
−$ui->show_header();
+
−
+
−if ( isset($_GET['stage']) && @$_GET['stage'] == 'pimpmyenano' )
+
−{
+
−  // Do we need to run the migration first?
+
−  if ( substr(enano_version(), 0, 4) != '1.1.' )
+
−  {
+
−    require(ENANO_ROOT . '/install/upgrade/migration/1.0-1.1.php');
+
−    $result = MIGRATE();
+
−    if ( !$result )
+
−    {
+
−      echo 'Migration failed, there should be an error message above.';
+
−      $ui->show_footer();
+
−      exit;
+
−    }
+
−  }
+
−  // Main upgrade stage
+
−  
+
−  // Init vars
+
−  $version_flipped = array_flip($enano_versions);
+
−  $version_curr = enano_version();
+
−  $version_target = installer_enano_version();
+
−  
+
−  // Calculate which scripts to run
+
−  if ( !isset($version_flipped[$version_curr]) )
+
−  {
+
−    echo '<p>ERROR: Unsupported version</p>';
+
−    $ui->show_footer();
+
−    exit;
+
−  }
+
−  if ( !isset($version_flipped[$version_target]) )
+
−  {
+
−    echo '<p>ERROR: Upgrader doesn\'t support its own version</p>';
+
−    $ui->show_footer();
+
−    exit;
+
−  }
+
−  $upg_queue = array();
+
−  for ( $i = $version_flipped[$version_curr]; $i < $version_flipped[$version_target]; $i++ )
+
−  {
+
−    if ( !isset($enano_versions[$i + 1]) )
+
−    {
+
−      echo '<p>ERROR: Unsupported intermediate version</p>';
+
−      $ui->show_footer();
+
−      exit;
+
−    }
+
−    $ver_this = $enano_versions[$i];
+
−    $ver_next = $enano_versions[$i + 1];
+
−    $upg_queue[] = array($ver_this, $ver_next);
+
−  }
+
−  
+
−  // Verify that all upgrade scripts are usable
+
−  foreach ( $upg_queue as $verset )
+
−  {
+
−    $file = ENANO_ROOT . "/install/schemas/upgrade/{$verset[0]}-{$verset[1]}-$dbdriver.sql";
+
−    if ( !file_exists($file) )
+
−    {
+
−      echo "<p>ERROR: Couldn't find required schema file: $file</p>";
+
−      $ui->show_footer();
+
−      exit;
+
−    }
+
−  }
+
−  // Perform upgrade
+
−  foreach ( $upg_queue as $verset )
+
−  {
+
−    $file = ENANO_ROOT . "/install/schemas/upgrade/{$verset[0]}-{$verset[1]}-$dbdriver.sql";
+
−    try
+
−    {
+
−      $parser = new SQL_Parser($file);
+
−    }
+
−    catch(Exception $e)
+
−    {
+
−      die("<pre>$e</pre>");
+
−    }
+
−    
+
−    $parser->assign_vars(array(
+
−      'TABLE_PREFIX' => table_prefix
+
−    ));
+
−  
+
−    $sql_list = $parser->parse();
+
−  
+
−    foreach ( $sql_list as $sql )
+
−    {
+
−      if ( !$db->sql_query($sql) )
+
−        $db->_die();
+
−    }
+
−    
+
−    // Is there an additional script (logic) to be run after the schema?
+
−    $postscript = ENANO_ROOT . "/install/schemas/upgrade/{$verset[0]}-{$verset[1]}.php";
+
−    if ( file_exists($postscript) )
+
−      @include($postscript);
+
−    
+
−    // The advantage of calling setConfig on the system version here?
+
−    // Simple. If the upgrade fails, it will pick up from the last
+
−    // version, not try to start again from the beginning. This will
+
−    // still cause errors in most cases though. Eventually we probably
+
−    // need some sort of query-numbering system that tracks in-progress
+
−    // upgrades.
+
−    
+
−    setConfig('enano_version', $verset[1]);
+
−  }
+
−  echo '<p>All done!</p>';
+
−}
+
−else
+
−{
+
−  ?>
+
−  <p>Nothing's really implemented for now except the actual migration code, which is not very smart. Just <a href="<?php echo $session->append_sid('upgrade.php?stage=pimpmyenano'); ?>">do the upgrade and get it over with</a>.</p>
+
−  <?php
+
−}
+
−
+
−$ui->show_footer();
+
−