<?php

/*
 * Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
 * Copyright (C) 2006-2009 Dan Fuhry
 * Installation package
 * login.php - Installer login information stage
 *
 * 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.
 */

if ( !defined('IN_ENANO_INSTALL') )
  die();

// AES functions required
require_once( ENANO_ROOT . '/includes/rijndael.php' );
require_once( ENANO_ROOT . '/includes/constants.php' );
require_once( ENANO_ROOT . '/includes/dbal.php' );

// Write our temporary password key to the database
require( ENANO_ROOT . '/config.new.php' );
if ( !defined('ENANO_INSTALL_HAVE_CONFIG') )
{
  die('Config file is corrupt');
}
$db = new $dbdriver();
$result = $db->connect();
if ( !$result )
  die('DB privileges were revoked');

// Is the key in the database?
$q = $db->sql_query('SELECT config_value FROM ' . table_prefix . 'config WHERE config_name = \'install_aes_key\';');
if ( !$q )
  $db->_die();
if ( $db->numrows() > 0 )
{
  list($install_aes_key) = $db->fetchrow_num();
}
else
{
  $aes = AESCrypt::singleton(AES_BITS, AES_BLOCKSIZE);
  $install_aes_key = $aes->gen_readymade_key();
  
  if ( ! $db->sql_query('INSERT INTO ' . table_prefix . 'config ( config_name, config_value ) VALUES ( \'install_aes_key\', \'' . $install_aes_key .'\' ); ') )
    $db->_die();
}
$db->free_result($q);

$ui->add_header('<script type="text/javascript" src="includes/js/formutils.js"></script>');
$ui->show_header();

// FIXME: l10n
?>
<h3><?php echo $lang->get('login_welcome_title'); ?></h3>
<?php echo $lang->get('login_welcome_body'); ?>

<script type="text/javascript">

  // <![CDATA[
  
  function verify(target)
  {
    var frm = document.forms [ 'install_login' ];
    var undefined;
    var passed = true;
    
    var data = {
      username: frm.username.value,
      password: frm.password.value,
      password_confirm: frm.password_confirm.value,
      email: frm.email.value
    };
    
    if ( !target )
      target = { name: undefined };
    
    if ( target.name == undefined || target.name == 'username' )
    {
      var matches = validateUsername(data.username);
      document.getElementById('s_username').src = ( matches ) ? img_good : img_bad;
      if ( !matches )
        passed = false;
    }
    
    if ( target.name == undefined || target.name == 'password' || target.name == 'password_confirm' )
    {
      var matches = ( data.password.length >= 6 && data.password == data.password_confirm ) ;
      document.getElementById('s_password').src = ( matches ) ? img_good : img_bad;
      if ( !matches )
        passed = false;
    }
    
    if ( target.name == undefined || target.name == 'email' )
    {
      var matches = validateEmail(data.email);
      document.getElementById('s_email').src = ( matches ) ? img_good : img_bad;
      if ( !matches )
        passed = false;
    }
    
    return passed;
  }
  
  function verify_submit()
  {
    if ( verify() )
      return true;
    alert($lang.get('login_err_verify_failure'));
    return false;
  }
  
  function submit_encrypt()
  {
    var frm = document.forms [ 'install_login' ];
    var password = frm.password.value;
    var pass_conf = frm.password_confirm.value;
    var crypt_key = frm.crypt_key.value;
    
    if ( password != pass_conf )
      return false;
    
    if ( !aes_self_test() )
      // Return true to prevent form from failing
      return true;
      
    if ( frm.crypt_key.KeyBak )
    {
      crypt_key = frm.crypt_key.KeyBak;
    }
    frm.crypt_key.KeyBak = crypt_key;
    
    password = stringToByteArray(password);
    crypt_key = hexToByteArray(crypt_key);
    
    var crypt_data = rijndaelEncrypt(password, crypt_key, 'ECB');
    
    if ( !crypt_data )
    {
      alert($lang.get('login_err_rijndael_failed'));
      return false;
    }
  
    crypt_data = byteArrayToHex(crypt_data);
    
    frm.password.value = '';
    frm.password_confirm.value = '';
    frm.crypt_key.value = '';
    frm.crypt_data.value = crypt_data;
    
    return true;
  }
  
  addOnloadHook(function()
    {
      load_component('crypto');
      load_component('l10n');
    });
  
  // ]]>

</script>

<form action="install.php?stage=confirm" method="post" name="install_login" onsubmit="return ( verify_submit() && submit_encrypt() );"><?php
  foreach ( $_POST as $key => &$value )
  {
    if ( !preg_match('/^[a-z0-9_]+$/', $key) )
      die('You idiot hacker...');
    if ( $key == '_cont' )
      continue;
    $value_clean = str_replace(array('\\', '"', '<', '>'), array('\\\\', '\\"', '&lt;', '&gt;'), $value);
    echo "\n  <input type=\"hidden\" name=\"$key\" value=\"$value_clean\" />";
  }
  
  $https = ( isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off' );
  $scriptpath_full = 'http' . ( $https ? 's' : '' ) . '://' . $_SERVER['HTTP_HOST'] . scriptPath . '/';
  ?>
  
  <input type="hidden" name="crypt_key" value="<?php echo $install_aes_key; ?>" />
  <input type="hidden" name="crypt_data" value="" />
  
  <table border="0" cellspacing="0" cellpadding="10" style="width: 100%;">
  
    <tr>
      <td style="width: 50%;">
        <b><?php echo $lang->get('login_field_username'); ?></b>
      </td>
      <td style="width: 50%;">
        <input type="text" tabindex="1" name="username" size="15" onkeyup="verify(this);" />
      </td>
      <td>
        <img id="s_username" alt="Good/bad icon" src="../images/checkbad.png" />
      </td>
    </tr>
    
    <tr>
      <td>
        <b><?php echo $lang->get('login_field_password'); ?></b><br />
        <?php echo $lang->get('login_aes_blurb'); ?>
      </td>
      <td>
        <input type="password" tabindex="2" name="password" size="15" onkeyup="password_score_field(this); verify(this);" /><br />
        <br />
        <div id="pwmeter"></div>
        <br />
        <input type="password" tabindex="3" name="password_confirm" size="15" onkeyup="verify(this);" /> <small><?php echo $lang->get('login_field_password_confirm'); ?></small>
      </td>
      <td>
        <img id="s_password" alt="Good/bad icon" src="../images/checkbad.png" />
      </td>
    </tr>
    
    <tr>
      <td style="width: 50%;">
        <b><?php echo $lang->get('login_field_email'); ?></b>
      </td>
      <td style="width: 50%;">
        <input type="text" tabindex="4" name="email" size="30" onkeyup="verify(this);" />
      </td>
      <td>
        <img id="s_email" alt="Good/bad icon" src="../images/checkbad.png" />
      </td>
    </tr>
  
  </table>
  
  <div style="text-align: center;">
    <input type="submit" name="_cont" value="<?php echo $lang->get('meta_btn_continue'); ?>" />
  </div>
</form>