install/includes/libenanoinstall.php
author Dan
Sat, 16 Feb 2008 16:56:08 -0500
changeset 424 f58e0b6e9c22
parent 404 fb4f9e6f378f
child 494 6c78cc456091
permissions -rw-r--r--
Some memory usage improvements, I think. PHP is being weird to me.
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 1.1.1
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 * Copyright (C) 2006-2007 Dan Fuhry
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 * Installation package
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 * libenanoinstall.php - Installation payload backend
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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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$neutral_color = 'C';
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function run_installer_stage($stage_id, $stage_name, $function, $failure_explanation, $allow_skip = true)
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{
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  static $resumed = false;
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  static $resume_stack = array();
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  if ( empty($resume_stack) && isset($_POST['resume_stack']) && preg_match('/[a-z_]+((\|[a-z_]+)+)/', $_POST['resume_stack']) )
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  {
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    $resume_stack = explode('|', $_POST['resume_stack']);
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  }
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  $already_run = false;
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  if ( in_array($stage_id, $resume_stack) )
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  {
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    $already_run = true;
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  }
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  if ( !$resumed )
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  {
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    if ( !isset($_GET['sub']) )
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      $resumed = true;
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    if ( isset($_GET['sub']) && $_GET['sub'] == $stage_id )
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    {
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      $resumed = true;
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    }
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  }
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  if ( !$resumed && $allow_skip )
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  {
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    echo_stage_success($stage_id, $stage_name);
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    return false;
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  }
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  if ( !function_exists($function) )
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    die('libenanoinstall: CRITICAL: function "' . $function . '" for ' . $stage_id . ' doesn\'t exist');
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  $result = @call_user_func($function, false, $already_run);
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  if ( $result )
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  {
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    echo_stage_success($stage_id, $stage_name);
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    $resume_stack[] = $stage_id;
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    return true;
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  }
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  else
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  {
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    echo_stage_failure($stage_id, $stage_name, $failure_explanation, $resume_stack);
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    return false;
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  }
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}
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function start_install_table()
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{
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  echo '<table border="0" cellspacing="0" cellpadding="0" style="margin-top: 10px;">' . "\n";
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}
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function close_install_table()
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{
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  echo '</table>' . "\n\n";
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  flush();
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}
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function echo_stage_success($stage_id, $stage_name)
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{
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  global $neutral_color;
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  $neutral_color = ( $neutral_color == 'A' ) ? 'C' : 'A';
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  echo '<tr><td style="width: 500px; background-color: #' . "{$neutral_color}{$neutral_color}FF{$neutral_color}{$neutral_color}" . '; padding: 0 5px;">' . htmlspecialchars($stage_name) . '</td><td style="padding: 0 5px;"><img alt="Done" src="../images/check.png" /></td></tr>' . "\n";
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  flush();
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}
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function echo_stage_failure($stage_id, $stage_name, $failure_explanation, $resume_stack)
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{
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  global $neutral_color;
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  global $lang;
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  $neutral_color = ( $neutral_color == 'A' ) ? 'C' : 'A';
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  echo '<tr><td style="width: 500px; background-color: #' . "FF{$neutral_color}{$neutral_color}{$neutral_color}{$neutral_color}" . '; padding: 0 5px;">' . htmlspecialchars($stage_name) . '</td><td style="padding: 0 5px;"><img alt="Failed" src="../images/checkbad.png" /></td></tr>' . "\n";
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  flush();
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  close_install_table();
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  $post_data = '';
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  $mysql_error = mysql_error();
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  foreach ( $_POST as $key => $value )
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  {
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    // FIXME: These should really also be sanitized for double quotes
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    $value = htmlspecialchars($value);
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    $key = htmlspecialchars($key);
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    $post_data .= "          <input type=\"hidden\" name=\"$key\" value=\"$value\" />\n";
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  }
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  if ( $stage_id == 'renameconfig' )
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    echo '<p>' . $failure_explanation . '</p>';
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  else
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    echo '<form action="install.php?stage=install&amp;sub=' . $stage_id . '" method="post">
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            ' . $post_data . '
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            <input type="hidden" name="resume_stack" value="' . htmlspecialchars(implode('|', $resume_stack)) . '" />
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            <h3>' . $lang->get('meta_msg_err_stagefailed_title') . '</h3>
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             <p>' . $failure_explanation . '</p>
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             ' . ( !empty($mysql_error) ? "<p>" . $lang->get('meta_msg_err_stagefailed_mysqlerror') . " $mysql_error</p>" : '' ) . '
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             <p>' . $lang->get('meta_msg_err_stagefailed_body') . '</p>
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             <p style="text-align: center;"><input type="submit" value="' . $lang->get('meta_btn_retry_installation') . '" /></p>
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          </form>';
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  global $ui;
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  $ui->show_footer();
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  exit;
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}
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?>