<?php

/*

 * Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between

 * Copyright (C) 2006-2008 Dan Fuhry

 * Installation package

 * database_mysql.php - Installer database info page, MySQL

 *

 * 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();

if ( isset($_POST['_cont']) )

{

  $allow_go = true;

  // Do we have everything? If so, continue with installation.

  foreach ( array('db_host', 'db_name', 'db_user', 'db_pass') as $field )

  {

    if ( empty($_POST[$field]) )

    {

      $allow_go = false;

    }

  }

  if ( $allow_go )

  {

    require( ENANO_ROOT . '/install/includes/stages/database_post.php' );

    return true;

  }

}

if ( isset($_POST['ajax_test']) )

{

  // Test the database connection

  $return = array(

      'can_install' => false,

      'host_good' => true,

      'creating_user' => false,

      'db_exist' => false,

      'creating_db' => false,

      'creating_db_grant' => false,

      'root_fail' => false,

      'version' => array(

        'version' => 'unknown',

        'good' => 'indeterminate'

      ),

      'last_error' => ''

    );

  if ( !isset($_POST['info']) )

    die();

  $info = $_POST['info'];

  // From here on out will be JSON responses

  header('Content-type: application/json');

  try

  {

    $info = @enano_json_decode($info);

  }

  catch ( Zend_Json_Exception $e )

  {

    die(enano_json_encode(array(

        'mode' => 'error',

        'error' => 'Exception in JSON decoder'

      )));

  }

  // Try to connect as the normal user

  $test = @mysql_connect($info['db_host'], $info['db_user'], $info['db_pass']);

  if ( !$test )

  {

    $return['creating_user'] = true;

    $return['last_error'] = mysql_error();

    if ( strstr( $return['last_error'], 'Lost connection' ) || strstr( $return['last_error'], 'Unknown MySQL server host' ) )

    {

      $return['host_good'] = false;

    }

    // Doing that failed. If we have root credentials, test those

    if ( !empty($info['db_root_user']) && !empty($info['db_root_pass']) )

    {

      // Log in with root rights and if that works, tell 'em we'll reset the password or create

      // the account if it doesn't exist already. This is done with GRANT ALL PRIVILEGES ON enano_db.*

      // etc etc, a little hackish but known to work with MySQL >= 4.1.

      $test_root = @mysql_connect($info['db_host'], $info['db_root_user'], $info['db_root_pass']);

      if ( $test_root )

      {

        // We logged in with root rights, assume that we have appropriate permissions.

        // If not, well, the installation will fail. Tough on the user, but creating

        // test databases/users is too risky.

        // Does the database exist?

        $q = @mysql_query('USE `' . mysql_real_escape_string($info['db_name']) . '`;', $test_root);

        if ( !$q )

        {

          // Nope, we'll have to create it

          $return['creating_db'] = true;

          $return['last_error'] = mysql_error();

        }

        $version = mysql_get_server_info($test_root);

        $return['version'] = array(

          'version' => $version,

          'good' => version_compare($version, '4.0.17', '>=')

        );

        $return['can_install'] = ( $return['version']['good'] ) ? true : false;

      }

      else

      {

        // Well that helped. Root credentials are bad.

        $return['creating_db'] = true;

        $return['root_fail'] = true;

      }

    }

    else

    {

      // No root credentials, fail out

      $return['root_fail'] = true;

    }

  }

  else

  {

    // We're connected; do we have permission to use the database?

    $have_database = false;

    $q = @mysql_query('USE `' . mysql_real_escape_string($info['db_name']) . '`;', $test);

    if ( $q )

    {

      // Permissions are good and we're all connected. Perform version check...

      $version = mysql_get_server_info($test);

      $return['version'] = array(

        'version' => $version,

        'good' => version_compare($version, '4.0.17', '>=')

      );

      $return['can_install'] = ( $return['version']['good'] ) ? true : false;

    }

    else

    {

      $return['last_error'] = mysql_error();

      $return['creating_db'] = true;

      // We don't have permission to use the database or it doesn't exist.

      // See if we have a root login to work with, if not then fail

      if ( !empty($info['db_root_user']) && !empty($info['db_root_pass']) )

      {

        // Log in with root rights and if that works, tell 'em we'll create the database.

        $test_root = @mysql_connect($info['db_host'], $info['db_root_user'], $info['db_root_pass']);

        if ( $test_root )

        {

          // We logged in with root rights, assume that we have appropriate permissions.

          // If not, well, the installation will fail. Tough on the user, but creating

          // test databases/users is too risky.

          // See if the database already exists

          $dbname = mysql_real_escape_string($info['db_name']);

          $q = @mysql_query("SHOW DATABASES LIKE '$dbname';", $test_root);

          if ( $q )

          {

            if ( mysql_num_rows($q) > 0 )

            {

              $return['creating_db'] = false;

              $return['creating_db_grant'] = true;

            }

            @mysql_free_result($q);

          }

          $version = mysql_get_server_info($test);

          $return['version'] = array(

            'version' => $version,

            'good' => version_compare($version, '4.0.17', '>=')

          );

          $return['can_install'] = ( $return['version']['good'] ) ? true : false;

        }

        else

        {

          // Well that helped. Root credentials are bad.

          $return['creating_db'] = true;

          $return['root_fail'] = true;

        }

      }

      // No root credentials, fail out

    }

  }

  if ( isset($test) && @is_resource($test) )

    @mysql_close($test);

  if ( isset($test_root) && @is_resource($test_root) )

    @mysql_close($test_root);

  echo enano_json_encode($return);

  exit();

}

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

$ui->show_header();

?>

<div style="float: right; padding: 10px 0 10px 10px;">

  <img alt="MySQL logo" src="../images/about-powered-mysql.png" />

</div>

<p><?php echo $lang->get('dbmysql_blurb_needdb'); ?></p>

<p><?php echo $lang->get('dbmysql_blurb_howtomysql'); ?></p>

<?php

if ( @file_exists('/etc/enano-is-virt-appliance') )

{

  echo '<p>

          ' . $lang->get('database_vm_login_info', array( 'host' => 'localhost', 'user' => 'enano', 'pass' => 'clurichaun', 'name' => 'enano_www1' )) . '

        </p>';

}

?>

<script type="text/javascript">

  var tested = false;

  function verify(field)

  {

    if ( tested && !field )

      return true;

    tested = false;

    if ( document.getElementById('verify_error').className != '' )

    {

      document.getElementById('verify_error').className = '';

      document.getElementById('verify_error').innerHTML = '';

    }

    var frm = document.forms.database_info;

    // List of fields

    var fields = {

      db_host: frm.db_host,

      db_name: frm.db_name,

      db_user: frm.db_user,

      db_pass: frm.db_pass,

      table_prefix: frm.table_prefix,

      db_root_user: frm.db_root_user,

      db_root_pass: frm.db_root_pass

    };

    var passed = true;

    // Main validation

    if ( field == fields.db_host || !field )

    {

      var matches = fields.db_host.value.match(/^([a-z0-9_-]+)((\.([a-z0-9_-]+))*)?$/);

      document.getElementById('s_db_host').src = ( matches ) ? img_neu : img_bad;

      if ( !matches )

        passed = false;

    }

    if ( field == fields.db_name || !field )

    {

      var matches = fields.db_name.value.match(/^[A-z0-9_-]+$/);

      document.getElementById('s_db_name').src = ( matches ) ? img_neu : img_bad;

      if ( !matches )

        passed = false;

    }

    if ( field == fields.db_user || field == fields.db_pass || !field )

    {

      var matches = fields.db_user.value.match(/^[A-z0-9_-]+$/);

      document.getElementById('s_db_auth').src = ( matches ) ? img_neu : img_bad;

      if ( !matches )

        passed = false;

    }

    if ( field == fields.table_prefix || !field )

    {

      var matches = fields.table_prefix.value.match(/^[a-z0-9_]*$/);

      document.getElementById('s_table_prefix').src = ( matches ) ? img_good : img_bad;

      if ( !matches )

        passed = false;

    }

    if ( field == fields.db_root_user || field == fields.db_root_pass || !field )

    {

      var matches = ( ( fields.db_root_user.value.match(/^[A-z0-9_-]+$/) && fields.db_root_pass.value.match(/^.+$/) ) || fields.db_root_user.value == '' );

      document.getElementById('s_db_root').src = ( matches ) ? img_neu : img_bad;

      if ( !matches )

        passed = false;

    }

    return passed;

  }

  function ajaxTestConnection()

  {

    if ( !verify() )

    {

      document.body.scrollTop = 0;

      new Spry.Effect.Shake('enano-body', {duration: 750}).start();

      document.getElementById('verify_error').className = 'error-box-mini';

      document.getElementById('verify_error').innerHTML = $lang.get('meta_msg_err_verification');

      return false;

    }

    install_set_ajax_loading();

    var frm = document.forms.database_info;

    var connection_info = 'info=' + ajaxEscape(toJSONString({

        db_host: frm.db_host.value,

        db_name: frm.db_name.value,

        db_user: frm.db_user.value,

        db_pass: frm.db_pass.value,

        db_root_user: frm.db_root_user.value,

        db_root_pass: frm.db_root_pass.value

      }));

    ajaxPost(scriptPath + '/install/install.php?stage=database', connection_info + '&driver=mysql&ajax_test=on&language=' + enano_lang_code[ENANO_LANG_ID], function()

      {

        if ( ajax.readyState == 4 && ajax.status == 200 )

        {

          setTimeout('install_unset_ajax_loading();', 750);

          // Process response

          var response = String(ajax.responseText + '');

          if ( response.substr(0, 1) != '{' )

          {

            alert('Received an invalid JSON response from the server.');

            return false;

          }

          response = parseJSON(response);

          if ( response.mode == 'error' )

          {

            return false;

          }

          document.getElementById('e_db_host').innerHTML = '';

          document.getElementById('e_db_name').innerHTML = '';

          document.getElementById('e_db_auth').innerHTML = '';

          document.getElementById('e_db_root').innerHTML = '';

          if ( response.can_install )

          {

            tested = true;

            var statuses = ['s_db_host', 's_db_name', 's_db_auth', 's_table_prefix', 's_db_root', 's_mysql_version'];

            for ( var i in statuses )

            {

              var img = document.getElementById(statuses[i]);

              if ( img )

                img.src = img_good;

            }

            document.getElementById('e_mysql_version').innerHTML = $lang.get('dbmysql_msg_info_mysql_good');

            document.getElementById('verify_error').className = 'info-box-mini';

            document.getElementById('verify_error').innerHTML = $lang.get('dbmysql_msg_test_success');

            if ( response.creating_db )

            {

              document.getElementById('e_db_name').innerHTML = $lang.get('dbmysql_msg_warn_creating_db');

            }

            if ( response.creating_user )

            {

              document.getElementById('e_db_auth').innerHTML = $lang.get('dbmysql_msg_warn_creating_user');

            }

          }

          else

          {

            // Oh dear, oh dear, oh dear, oh dear, oh dear...

            if ( response.creating_db )

            {

              document.getElementById('e_db_name').innerHTML = $lang.get('dbmysql_msg_err_mysql_dbexist', { mysql_error: response.last_error });

              document.getElementById('s_db_name').src = img_bad;

            }

            if ( response.creating_user )

            {

              document.getElementById('e_db_auth').innerHTML = $lang.get('dbmysql_msg_err_mysql_auth', { mysql_error: response.last_error });

              document.getElementById('s_db_auth').src = img_bad;

            }

            if ( !response.host_good )

            {

              document.getElementById('e_db_host').innerHTML = $lang.get('dbmysql_msg_err_mysql_connect', { db_host: frm.db_host.value, mysql_error: response.last_error });

              document.getElementById('s_db_host').src = img_bad;

            }

          }

        }

      });

  }

</script>

<form action="install.php?stage=database" method="post" name="database_info">

<input type="hidden" name="language" value="<?php echo $lang_id; ?>" />

<input type="hidden" name="driver" value="mysql" />

<table border="0" cellspacing="0" cellpadding="10" width="100%">

  <tr>

    <td colspan="3" style="text-align: center">

      <h3><?php echo $lang->get('dbmysql_table_title'); ?></h3>

    </td>

  </tr>

  <tr>

    <td>

      <b><?php echo $lang->get('dbmysql_field_hostname_title'); ?></b>

      <br /><?php echo $lang->get('dbmysql_field_hostname_body'); ?>

      <br /><span style="color: #993300" id="e_db_host"></span>

    </td>

    <td>

      <input onkeyup="verify(this);" tabindex="1" name="db_host" size="30" type="text" />

    </td>

    <td>

      <img id="s_db_host" alt="Good/bad icon" src="../images/checkbad.png" />

    </td>

  </tr>

  <tr>

    <td>

      <b><?php echo $lang->get('dbmysql_field_dbname_title'); ?></b><br />

      <?php echo $lang->get('dbmysql_field_dbname_body'); ?><br />

      <span style="color: #993300" id="e_db_name"></span>

    </td>

    <td>

      <input onkeyup="verify(this);" tabindex="2" name="db_name" size="30" type="text" />

    </td>

    <td>

      <img id="s_db_name" alt="Good/bad icon" src="../images/checkbad.png" />

    </td>

  </tr>

  <tr>

    <td>

      <b><?php echo $lang->get('dbmysql_field_dbauth_title'); ?></b><br />

      <?php echo $lang->get('dbmysql_field_dbauth_body'); ?><br />

      <span style="color: #993300" id="e_db_auth"></span>

    </td>

    <td>

      <input onkeyup="verify(this);" tabindex="3" name="db_user" size="30" type="text" /><br />

      <br />

      <input name="db_pass" tabindex="4" size="30" type="password" />

    </td>

    <td>

      <img id="s_db_auth" alt="Good/bad icon" src="../images/checkbad.png" />

    </td>

  </tr>

  <tr>

    <td colspan="3" style="text-align: center">

      <h3><?php echo $lang->get('database_heading_optionalinfo'); ?></h3>

    </td>

  </tr>

  <tr>

    <td>

      <b><?php echo $lang->get('dbmysql_field_tableprefix_title'); ?></b><br />

      <?php echo $lang->get('dbmysql_field_tableprefix_body'); ?>

    </td>

    <td>

      <input onkeyup="verify(this);" tabindex="5" name="table_prefix" size="30" type="text" />

    </td>

    <td>

      <img id="s_table_prefix" alt="Good/bad icon" src="../images/check.png" />

    </td>

  </tr>

  <tr>

    <td>

      <b><?php echo $lang->get('dbmysql_field_rootauth_title'); ?></b><br />

      <?php echo $lang->get('dbmysql_field_rootauth_body'); ?><br />

      <span style="color: #993300" id="e_db_root"></span>

    </td>

    <td>

      <input onkeyup="verify(this);" tabindex="6" name="db_root_user" size="30" type="text" /><br />

      <br />

      <input onkeyup="verify(this);" tabindex="7" name="db_root_pass" size="30" type="password" />

    </td>

    <td>

      <img id="s_db_root" alt="Good/bad icon" src="../images/check.png" />

    </td>

  </tr>

  <tr>

    <td>

      <b><?php echo $lang->get('dbmysql_field_mysqlversion_title'); ?></b>

    </td>

    <td id="e_mysql_version">

      <?php echo $lang->get('dbmysql_field_mysqlversion_blurb_willbechecked'); ?>

    </td>

    <td>

      <img id="s_mysql_version" alt="Good/bad icon" src="../images/checkunk.png" />

    </td>

  </tr>

  <tr>

    <td>

      <b><?php echo $lang->get('dbmysql_field_droptables_title'); ?></b><br />

      <?php echo $lang->get('dbmysql_field_droptables_body'); ?>

    </td>

    <td colspan="2">

      <input type="checkbox" tabindex="8" name="drop_tables" id="dtcheck" />  <label for="dtcheck"><?php echo $lang->get('dbmysql_field_droptables_lbl'); ?></label>

    </td>

  </tr>

  <tr>

    <td colspan="3" style="text-align: center">

      <input type="button" tabindex="9" value="<?php echo $lang->get('dbmysql_btn_testconnection'); ?>" onclick="ajaxTestConnection();" />

      <div id="verify_error"></div>

    </td>

  </tr>

</table>

<table border="0">

  <tr>

    <td>

      <input type="submit" tabindex="10" value="<?php echo $lang->get('meta_btn_continue'); ?>" onclick="return verify();" name="_cont" />

    </td>

    <td>

      <p>

        <span style="font-weight: bold;"><?php echo $lang->get('meta_lbl_before_continue'); ?></span><br />

        &bull; <?php echo $lang->get('database_objective_test'); ?><br />

        &bull; <?php echo $lang->get('database_objective_uncrypt'); ?>

      </p>

    </td>

  </tr>

</table>

</form>

<script type="text/javascript">

  verify();

</script>