e107inc/e107

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install.php

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<?php
/*
* e107 website system
*
* Copyright (C) 2008-2012 e107 Inc (e107.org)
* Released under the terms and conditions of the
* GNU General Public License (http://www.gnu.org/licenses/gpl.txt)
*
* e107 v2.x Installation file
*
*/

// minimal software version
define('MIN_PHP_VERSION',   '7.4');
define('MIN_MYSQL_VERSION', '4.1.2');
define('MAKE_INSTALL_LOG', true);

// ensure CHARSET is UTF-8 if used
//define('CHARSET', 'utf-8');

/* Default Options and Paths for Installer */
$MySQLprefix         = 'e107_';
$HANDLERS_DIRECTORY  = "e107_handlers/"; // needed for e107 class init

header('Content-type: text/html; charset=utf-8');

define("e107_INIT", TRUE);
define("DEFAULT_INSTALL_THEME", 'bootstrap5');
define('HELPICON', "<span class='e-tip glyphicon glyphicon-question-sign' style='float:right;padding-top:3px'></span>"); // <i class="glyphicon glyphicon-question-sign"></i>

$e107info = array();
require_once("e107_admin/ver.php");

define("e_VERSION", $e107info['e107_version']);

$e_ROOT = realpath(__DIR__ ."/");
if ((substr($e_ROOT,-1) !== '/') && (substr($e_ROOT,-1) !== '\\') )
{
    $e_ROOT .= DIRECTORY_SEPARATOR;  // Should function correctly on both windows and Linux now.
}
define('e_ROOT', $e_ROOT);
unset($e_ROOT);


class installLog
{

    const logFile = "e107Install.log";


    /**
     * @param Throwable $exception
     * @return void
     */
    static function exceptionHandler($exception)
    {
        $message = $exception->getMessage();
        self::add($message, "error");
    }

    static function errorHandler($errno=null, $errstr=null, $errfile=null, $errline=null)
    {

        $error = "Error on line ".$errline." in file ".$errfile." : ".$errstr;

        switch($errno)
        {
            case E_ERROR:
            case E_CORE_ERROR:
            case E_COMPILE_ERROR:
            case E_PARSE:
                self::add($error, "fatal");
                break;
            case E_USER_ERROR:
            case E_RECOVERABLE_ERROR:
                self::add($error, "error");
                break;
            case E_WARNING:
            case E_CORE_WARNING:
            case E_COMPILE_WARNING:
            case E_USER_WARNING:
                self::add($error, "warn");
                break;
            case E_NOTICE:
            case E_USER_NOTICE:
                self::add($error, "notice");
                break;
            case E_STRICT:
                self::add($error, "debug");
                break;
            default:
                if(!empty($errno))
                {
                     self::add($error, "warn");
                }


        }

        return true;
    }


    static function clear()
    {
        if(!MAKE_INSTALL_LOG || !is_writable(__DIR__))
        {
            return null;
        }

        $logFile = __DIR__ .'/'.self::logFile;
        file_put_contents($logFile,'');

    }

    /**
     * Write a line of text to the log file (if enabled) - prepend time/date, append \n
     * @param string $message
     * @param string $type
     * @return null
     */
    static function add($message, $type='info')
    {
        if(!MAKE_INSTALL_LOG || !is_writable(__DIR__))
        {
            return null;
        }

        $logFile = __DIR__ .'/'.self::logFile; // e107InstallLog.log';

        $now    = time();
        $message = $now.', '.date('c')."\t".$type."\t".$message."\n";

        file_put_contents($logFile, $message, FILE_APPEND);

        return null;
    }


}

set_exception_handler(array('installLog','exceptionHandler'));
set_error_handler(array('installLog',"errorHandler"));
register_shutdown_function(array('installLog',"errorHandler"));



/*define("e_UC_PUBLIC", 0);
define("e_UC_MAINADMIN", 250);
define("e_UC_READONLY", 251);
define("e_UC_GUEST", 252);
define("e_UC_MEMBER", 253);
define("e_UC_ADMIN", 254);
define("e_UC_NOBODY", 255);*/

define("E107_INSTALL",true);

if($_SERVER['QUERY_STRING'] !== "debug") // install.php?debug
{
    error_reporting(0); // suppress all errors unless debugging.
}
else
{
    error_reporting(E_ALL);
}

if($_SERVER['QUERY_STRING'] === 'clear')
{
    unset($_SESSION);
}

//error_reporting(E_ALL);

/*function e107_ini_set($var, $value)
{
    if (function_exists('ini_set'))
    {
        ini_set($var, $value);
    }
}*/

// setup some php options

ini_set('arg_separator.output',     '&amp;');
ini_set('session.use_only_cookies', 1);
ini_set('session.use_trans_sid',    0);

if (function_exists('date_default_timezone_set'))
{
    date_default_timezone_set('UTC');
}

define('MAGIC_QUOTES_GPC', false); // (ini_get('magic_quotes_gpc') ? true : false));

$php_version = PHP_VERSION;
if(version_compare($php_version, MIN_PHP_VERSION, "<"))
{
    die_fatal_error('A minimum version of PHP '.MIN_PHP_VERSION.' is required');   // no  LAN DEF translation accepted by lower versions <5.3
}

// Check needed to continue (extension check in stage 4 is too late)
if(!class_exists('DOMDocument', false))
{
    die_fatal_error("You need to install the DOM extension to install e107."); // NO LAN 
}

//  Ensure that '.' is the first part of the include path
$inc_path = explode(PATH_SEPARATOR, ini_get('include_path'));
if($inc_path[0] !== ".")
{
    array_unshift($inc_path, ".");
    $inc_path = implode(PATH_SEPARATOR, $inc_path);
    ini_set("include_path", $inc_path);
}
unset($inc_path);

if(!function_exists("mysql_connect")  && !defined('PDO::ATTR_DRIVER_NAME'))
{
    die_fatal_error("e107 requires PHP to be installed or compiled with PDO or the MySQL extension to work correctly, please see the MySQL manual for more information.");
}

# Check for the realpath(). Some hosts (I'm looking at you, Awardspace) are totally dumb and
# they think that disabling realpath() will somehow (I'm assuming) help improve their pathetic
# local security. Fact is, it just prevents apps from doing their proper local inclusion security
# checks. So, we refuse to work with these people.
$functions_ok = true;
$disabled_functions = ini_get('disable_functions');
if (trim($disabled_functions) != '')
{
    $disabled_functions = explode( ',', $disabled_functions );
    foreach ($disabled_functions as $function)
    {
        if(trim($function) === "realpath")
        {
            $functions_ok = false;
        }
    }
}
if($functions_ok == true && function_exists("realpath") == false)
{
    $functions_ok = false;
}
if($functions_ok == false)
{
    die_fatal_error("e107 requires the realpath() function to be enabled and your host appears to have disabled it. This function is required for some <b>important</b> security checks and there is <b>NO workaround</b>. Please contact your host for more information.");
}

//obsolete $installer_folder_name = 'e107_install';
include_once("./{$HANDLERS_DIRECTORY}core_functions.php");
include_once("./{$HANDLERS_DIRECTORY}e107_class.php");

function check_class($whatever='')
{
    unset($whatever);
    return true;
}

function getperms($arg, $ap = '')
{
    unset($arg,$ap);
    return true;
}

$override = array();

if(isset($_POST['previous_steps']))
{
    $tmp = unserialize(base64_decode($_POST['previous_steps']));
    $override = (isset($tmp['paths']) && isset($tmp['paths']['hash'])) ? array('site_path'=>$tmp['paths']['hash']) : array();
    unset($tmp);
    unset($tmpadminpass1);
}

//$e107_paths = compact('ADMIN_DIRECTORY', 'FILES_DIRECTORY', 'IMAGES_DIRECTORY', 'THEMES_DIRECTORY', 'PLUGINS_DIRECTORY', 'HANDLERS_DIRECTORY', 'LANGUAGES_DIRECTORY', 'HELP_DIRECTORY', 'CACHE_DIRECTORY', 'DOWNLOADS_DIRECTORY', 'UPLOADS_DIRECTORY', 'MEDIA_DIRECTORY', 'LOGS_DIRECTORY', 'SYSTEM_DIRECTORY', 'CORE_DIRECTORY');
$e107_paths = array();
$e107 = e107::getInstance();
$ebase = realpath(__DIR__);
if($e107->initInstall($e107_paths, $ebase, $override)===false)
{
    die_fatal_error("Error creating the following empty file: <b>".$ebase.DIRECTORY_SEPARATOR."e107_config.php</b><br />Please create it manually and then run the installation again.");
}

unset($e107_paths,$override,$ebase);

// NEW - session handler
require_once(e_HANDLER.'session_handler.php');
define('e_SECURITY_LEVEL', e_session::SECURITY_LEVEL_NONE);
define('e_COOKIE', 'e107install');
e107::getSession(); // starts session, creates default namespace
// session_start();

function include_lan($path, $force = false)
{
    unset($force);
    return include($path);
}
//obsolete $e107->e107_dirs['INSTALLER'] = "{$installer_folder_name}/";

if(isset($_GET['create_tables']))
{
    create_tables_unattended();
    exit;
}



$e_install = new e_install();
$e_forms = new e_forms();

$e_install->template->SetTag("installer_css_http", $_SERVER['PHP_SELF']."?object=stylesheet");
//obsolete $e_install->template->SetTag("installer_folder_http", e_HTTP.$installer_folder_name."/");
$e_install->template->SetTag("files_dir_http", e_FILE_ABS);

$e_install->renderPage();

/**
 * Set Cookie
 * @param string $name
 * @param string $value
 * @param integer $expire seconds
 * @param string $path
 * @param string $domain
 * @param boolean $secure
 * @return void
 */
function cookie($name, $value, $expire=0, $path = e_HTTP, $domain = '', $secure = false)
{
    setcookie($name, $value, $expire, $path, $domain, (bool) $secure);
}

class e_install
{
//    private   $paths;
    public    $template;
    private   $debug_info;
//    private   $debug_db_info;
    private   $e107;
    public    $previous_steps;
    private   $stage;
    private   $post_data;
    private   $required = array();

    private   $session;
    protected $pdo = false;
    protected $debug = false;

    //    public function __construct()
    function __construct()
    {
        // notice removal, required from various core routines
        define('USERID', 1);
        define('USER', true);
        define('ADMIN', true);
    //    define('e_UC_MAINADMIN', 250);
        define('E107_DEBUG_LEVEL',0);

        if($_SERVER['QUERY_STRING'] === "debug")
        {
            $this->debug = true;
        }

        if(defined('PDO::ATTR_DRIVER_NAME'))
        {
             $this->pdo = true;
             define('e_PDO', true);
        }

        if(!empty($this->previous_steps['mysql']['prefix']))
        {
            define('MPREFIX', $this->previous_steps['mysql']['prefix']);
        }

        $tp = e107::getParser();
        
        // session instance
        $this->session = e107::getSession();

        // $this->logLine('Query string: ');
        $this->template = new SimpleTemplate();

        if(ob_get_level() > 1)
        {
            while (@ob_end_clean())
            {
                unset($whatever);
            }
        }
        global $e107;
        $this->e107 = $e107;
        if(isset($_POST['previous_steps']))
        {
            $this->previous_steps = unserialize(base64_decode($_POST['previous_steps']));

            // Save unfiltered admin password (#4004) - " are transformed into &#34;
            $tmpadminpass2 = (isset($this->previous_steps['admin'])) ? $this->previous_steps['admin']['password'] : '';
            
            $this->previous_steps = $tp->filter($this->previous_steps);

            // Restore unfiltered admin password
            $this->previous_steps['admin']['password'] = $tmpadminpass2;

            unset($_POST['previous_steps']);
            unset($tmpadminpass2);
        }
        else
        {
            $this->previous_steps = array();
        }
        $this->get_lan_file();
        $this->post_data = $tp->filter($_POST);



        $this->template->SetTag('required', '');
        if(isset($this->previous_steps['language']))
        {
            define("e_LANGUAGE", $this->previous_steps['language']);
            include_lan(e_LANGUAGEDIR.e_LANGUAGE."/".e_LANGUAGE.".php");
            include_lan(e_LANGUAGEDIR.e_LANGUAGE."/admin/lan_admin.php");
        }
    }



    function add_button($id, $title='', $align = "right", $type = "submit")
    {

        global $e_forms;

        $e_forms->form .= "<div class='buttons-bar inline' style='text-align: {$align}; z-index: 10;'>";
        if($id !== 'start')
        {
            //        $this->form .= "<a class='btn btn-large ' href='javascript:history.go(-1)'>&laquo; ".LAN_BACK."</a>&nbsp;";
            $prevStage = ($this->stage - 1);
            $e_forms->form .= "<button class='btn btn-default btn-secondary btn-large no-validate ' name='back' value='".$prevStage."' type='submit'>&laquo; ".LAN_BACK."</button>&nbsp;";
        }
        if($id !== 'back')
        {
            $e_forms->form .= "<input type='{$type}' id='{$id}' name='{$id}' value='{$title} &raquo;' class='btn btn-large btn-primary' />";
        }
        $e_forms->form .= "</div>\n";
    }

    function renderPage()
    {
        if(!isset($_POST['stage']))
        {
            $_POST['stage'] = 1;
        }
        $_POST['stage'] = (int) $_POST['stage'];

        if(!empty($_POST['back']))
        {
            $_POST['stage'] = (int) $_POST['back'];
        }

        switch ($_POST['stage'])
        {
            case 1:
                $this->stage_1();
                break;
            case 2:
                $this->stage_2();
                break;
            case 3:
                $this->stage_3();
                break;
            case 4:
                $this->stage_4();
                break;
            case 5:
                $this->stage_5();
                break;
            case 6:
                $this->stage_6();
                break;
            case 7:
                $this->stage_7();
                break;
            case 8:
                $this->stage_8();
                break;
            default:
                $this->raise_error("Install stage information from client makes no sense to me.");
        }

        if($_SERVER['QUERY_STRING'] === "debug")
        {
            $this->template->SetTag("debug_info", print_a($this->previous_steps,TRUE));
        }
        else
        {
            $this->template->SetTag("debug_info", (!empty($this->debug_info) ? print_a($this->debug_info,TRUE)."Backtrace:<br />".print_a($this,TRUE) : ""));
        }

        echo $this->template->ParseTemplate(template_data(), TEMPLATE_TYPE_DATA);
    }

    function raise_error($details)
    {
        $this->debug_info[] = array (
        'info' => array (
            'details' => $details,
            'backtrace' => debug_backtrace()
            )
        );
    }

    function display_required()
    {
        if(empty($this->required))
        {
            return;
        }
        $this->required = array_filter($this->required);
        if(!empty($this->required))
        {
            $this->template->SetTag("required","<div class='message'>". implode("<br />",$this->required)."</div>");
            $this->required = array();
        }
    }

    /**
     * Stage 1
     * @return null
     */
    private function stage_1()
    {
        global $e_forms;
        $this->stage = 1;
        installLog::clear();
        installLog::add('Stage 1 started');


        $this->template->SetTag("installation_heading", LANINS_001);
        $this->template->SetTag("stage_pre", LANINS_002);
        $this->template->SetTag("stage_num", LANINS_003);
        $this->template->SetTag("stage_title", LANINS_004);
        $this->template->SetTag("percent", 10);
        $this->template->SetTag("bartype", 'warning');
        
        $e_forms->start_form("language_select", $_SERVER['PHP_SELF'].($_SERVER['QUERY_STRING'] === "debug" ? "?debug" : ""));
        $e_forms->add_select_item("language", $this->get_languages(), "English");
        $this->finish_form();
        $this->add_button("start", LAN_CONTINUE);
        $output = "
            <div style='text-align: center;'>
                <div class='alert alert-info alert-block text-center'>
                    <label for='language'>".LANINS_005."</label>
                </div>\n
                <br />\n
                <div class='col-md-offset-4 col-md-6'>
                ".$e_forms->return_form()."
                </div><br />
            </div>";
        $this->template->SetTag("stage_content", $output);
        installLog::add('Stage 1 completed');

        return null;
    }

    private function stage_2()
    {
        global $e_forms;
        $this->stage = 2;
        installLog::add('Stage 2 started');

        if(!empty($_POST['language']))
        {
            $this->previous_steps['language'] = $_POST['language'];
        }
        $this->template->SetTag("installation_heading", LANINS_001);
        $this->template->SetTag("stage_pre", LANINS_002);
        $this->template->SetTag("stage_num", LANINS_021);
        $this->template->SetTag("stage_title", LANINS_022);
        $this->template->SetTag("percent", 25);
        $this->template->SetTag("bartype", 'warning');
        
        if(!isset($this->previous_steps['mysql']['createdb']))
        {
            $this->previous_steps['mysql']['createdb'] = 1; // default to yes.     
        }
        
        // $this->template->SetTag("onload", "document.getElementById('name').focus()");
        // $page_info = nl2br(LANINS_023);
        $page_info = "<div class='alert alert-block alert-info'>".LANINS_141."</div>";
        $e_forms->start_form("versions", $_SERVER['PHP_SELF'].($_SERVER['QUERY_STRING'] === "debug" ? "?debug" : ""));
        $isrequired = (($_SERVER['SERVER_ADDR'] === "127.0.0.1") || ($_SERVER['SERVER_ADDR'] === "localhost") || ($_SERVER['SERVER_ADDR'] === "::1") || preg_match('/^192\.168\.\d{1,3}\.\d{1,3}$/',$_SERVER['SERVER_ADDR'])) ? "" :  "required='required'"; // Deals with IP V6, and 192.168.x.x address ranges, could be improved to validate x.x to a valid IP but for this use, I dont think its required to be that picky.

        $output = "
            <div style='width: 100%; padding-left: auto; padding-right: auto;'>
            <table class='table table-striped table-bordered' >
                <tr>
                    <td style='border-top: 1px solid #999;'><label for='server'>".LANINS_024."</label>".HELPICON."
                    <span class='field-help'>".LANINS_030."</span></td>
                    <td style='border-top: 1px solid #999;'>
                        <input class='form-control input-large' type='text' id='server' name='server' autofocus size='40' value='".varset($this->previous_steps['mysql']['server'],'localhost')."' maxlength='100' required='required' />
                        
                    </td>
                </tr>
                
                <tr>
                    <td><label for='name'>".LANINS_025."</label>".HELPICON."<span class='field-help'>".LANINS_031."</span></td>
                    <td>
                        <input class='form-control input-large' type='text' name='name' id='name' value='".varset($this->previous_steps['mysql']['user'])."' size='40'  maxlength='100' required='required' />
                    </td>
                </tr>
                
                <tr>
                    <td><label for='password'>".LANINS_026."</label>".HELPICON."<span class='field-help'>".LANINS_032."</span></td>
                    <td>
                        <input class='form-control input-large' type='password' name='password' size='40' id='password' value='".varset($this->previous_steps['mysql']['password'])."' maxlength='100' {$isrequired}  pattern='[^\x22]+' />

                    </td>
                </tr>
                
                <tr>
                    <td><label for='db'>".LANINS_027."</label>".HELPICON."<span class='field-help'>".LANINS_033."</span></td>
                    <td class='form-inline'>
                        <input class='form-control input-large' type='text' name='db' size='20' id='db' value='".varset($this->previous_steps['mysql']['db'])."' maxlength='100' required='required' pattern='^[a-zA-Z0-9][a-zA-Z0-9_-]*' />
                        <label class='checkbox-inline'><input type='checkbox' name='createdb' value='1' ".($this->previous_steps['mysql']['createdb'] ==1 ? "checked='checked'" : "")." /><small>".LANINS_028."</small></label>
                        
                    </td>
                </tr>
                
                <tr>
                    <td><label for='prefix'>".LANINS_029."</label>".HELPICON."<span class='field-help'>".LANINS_034."</span></td>
                    <td>
                        <input class='form-control input-large' type='text' name='prefix' size='20' id='prefix' value='e107_'  pattern='[a-z0-9]*_$' maxlength='100' required='required' />
                    </td>
                </tr>
            </table>
            <br /><br />
            </div>
            \n";
            
        $e_forms->add_plain_html($output);



        $this->finish_form();
        $this->add_button("submit", LAN_CONTINUE);
        $this->template->SetTag("stage_content", $page_info.$e_forms->return_form());
        installLog::add('Stage 2 completed');
    }

    /**
     *    Replace hash paths and create folders if needed.
     *
     *    @return null
     */    
    private function updatePaths()
    {
        $hash = $this->e107->makeSiteHash($this->previous_steps['mysql']['db'],$this->previous_steps['mysql']['prefix']);
        $this->e107->site_path = $hash;    
        
        $this->previous_steps['paths']['hash'] = $hash;

        installLog::add("Directory Hash Set: ".$hash);

        $omit = array('FILES_DIRECTORY','WEB_IMAGES_DIRECTORY');
        
        foreach($this->e107->e107_dirs as $dir => $p)
        {
            if(in_array($dir, $omit)) { continue; }    
            
            $this->e107->e107_dirs[$dir] = str_replace("[hash]", $hash, $this->e107->e107_dirs[$dir]);
                    
            if(!is_dir($this->e107->e107_dirs[$dir]))
            {
                @mkdir($this->e107->e107_dirs[$dir]);    
            }                    
        }

        return null;
    }

    private function stage_3()
    {

        global $e_forms;

        $this->stage = 3;
        $alertType = 'warning';
        installLog::add('Stage 3 started');

        $this->template->SetTag("installation_heading", LANINS_001);
        $this->template->SetTag("stage_pre", LANINS_002);
        $this->template->SetTag("stage_num", LANINS_036);
        $this->template->SetTag("onload", "document.getElementById('name').focus()");
        $this->template->SetTag("percent", 40);
        $this->template->SetTag("bartype", 'warning');
        $tp = e107::getParser();
    
        if(!empty($_POST['server']))
        {
            $this->previous_steps['mysql']['server']    = trim($tp->filter($_POST['server']));
            $this->previous_steps['mysql']['user']      = trim($tp->filter($_POST['name']));
            $this->previous_steps['mysql']['password']  = trim($tp->filter($_POST['password']));
            $this->previous_steps['mysql']['db']        = trim($tp->filter($_POST['db']));
            $this->previous_steps['mysql']['createdb']  = isset($_POST['createdb']) && $_POST['createdb'] == true;
            $this->previous_steps['mysql']['prefix']    = trim($tp->filter($_POST['prefix']));

            $this->setDb();
        }
        
        if(!empty($_POST['overwritedb']))
        {
            $this->previous_steps['mysql']['overwritedb'] = 1;
        }
                    
        $success = $this->check_name($this->previous_steps['mysql']['db']) && $this->check_name($this->previous_steps['mysql']['prefix'], TRUE);
        
        if ($success)
        {
            $success = $this->checkDbFields($this->previous_steps['mysql']);        // Check for invalid characters
        }
        
        if(!$success || $this->previous_steps['mysql']['server'] == "" || $this->previous_steps['mysql']['user'] == "")
        {
            $this->stage = 3;
            $this->template->SetTag("stage_num", LANINS_021);
            $e_forms->start_form("versions", $_SERVER['PHP_SELF'].($_SERVER['QUERY_STRING'] === "debug" ? "?debug" : ""));
            $head = LANINS_039."<br /><br />\n";
            $output = "
            <div style='width: 100%; padding-left: auto; padding-right: auto;'>
            <table class='table table-bordered table-striped'>
                <tr>
                    <td style='border-top: 1px solid #999;'><label for='server'>".LANINS_024."</label></td>
                    <td style='border-top: 1px solid #999;'><input class='form-control' type='text' id='server' name='server' size='40' value='{$this->previous_steps['mysql']['server']}' maxlength='100' required /></td>
                    <td style='width: 40%; border-top: 1px solid #999;'>".LANINS_030."</td>
                </tr>

                <tr>
                    <td><label for='name'>".LANINS_025."</label></td>
                    <td><input class='form-control' type='text' name='name' id='name' size='40' value='{$this->previous_steps['mysql']['user']}' maxlength='100' onload='this.focus()'  /></td>
                    <td>".LANINS_031."</td>
                </tr>

                <tr>
                    <td><label for='password'>".LANINS_026."</label></td>
                    <td><input class='form-control' type='password' name='password' id='password' size='40' value='{$this->previous_steps['mysql']['password']}' maxlength='100' /></td>
                    <td>".LANINS_032."</td>
                </tr>

                <tr>
                    <td><label for='db'>".LANINS_027."</label></td>
                    <td><input type='text' name='db' id='db' size='20' value='{$this->previous_steps['mysql']['db']}' maxlength='100' />
                        <br /><label class='defaulttext'><input type='checkbox' name='createdb' " .($this->previous_steps['mysql']['createdb'] == 1 ? " checked='checked'" : "") . " value='1' />".LANINS_028."</label></td>
                    <td>".LANINS_033."</td>
                </tr>

                <tr>
                    <td><label for='prefix'>".LANINS_029."</label></td>
                    <td><input type='text' name='prefix' id='prefix' size='20' value='{$this->previous_steps['mysql']['prefix']}'  maxlength='100' /></td>
                    <td>".LANINS_034."</td>
                </tr>";
                
            if (!$success)
            {
                $output .= "<tr><td colspan='3'>".LANINS_105."</td></tr>";
            }
            
            $output .= "
            </table>
            <br /><br />
            </div>
            \n";
            $e_forms->add_plain_html($output);
            $this->add_button("submit", LAN_CONTINUE);
            $this->template->SetTag("stage_title", LANINS_040);
        }
        else
        {
            $this->template->SetTag("stage_title", LANINS_037.($this->previous_steps['mysql']['createdb'] == 1 ? LANINS_038 : ""));        

            $sql = e107::getDb();
            if (!$res = $sql->connect($this->previous_steps['mysql']['server'], $this->previous_steps['mysql']['user'], $this->previous_steps['mysql']['password']))

    //        if (!$res = @mysql_connect($this->previous_steps['mysql']['server'], $this->previous_steps['mysql']['user'], $this->previous_steps['mysql']['password']))
            {
                $success = FALSE;
                $e_forms->start_form("versions", $_SERVER['PHP_SELF'].($_SERVER['QUERY_STRING'] === "debug" ? "?debug" : ""));
                $page_content = LANINS_041.nl2br("\n\n<b>".LANINS_083."\n</b><i>".$sql->getLastErrorText()."</i>");
                
                $alertType = 'error';
            }
            elseif(($this->previous_steps['mysql']['createdb'] == 1) && empty($this->previous_steps['mysql']['overwritedb']) && $sql->database($this->previous_steps['mysql']['db'], $this->previous_steps['mysql']['prefix']))
            {
                $e_forms->start_form("versions", $_SERVER['PHP_SELF'].($_SERVER['QUERY_STRING'] === "debug" ? "?debug" : ""));
                $head = str_replace('[x]', '<b>'.$this->previous_steps['mysql']['db'].'</b>', "<div class='alert alert-warning'>". LANINS_127."</div>");
                $alertType = 'error';
                $this->add_button('overwritedb', LANINS_128);
            /*    $e_forms->add_plain_html("
                <input type='submit' id='overwritedb' name='overwritedb' value=\"".LANINS_128." &raquo;\" class='btn btn-large btn-primary' />"
                
                );*/

                $this->finish_form(3);
                $this->template->SetTag("stage_content", "<div class='alert alert-block alert-{$alertType}'>".$head."</div>".$e_forms->return_form());
                installLog::add('Stage 3 completed');
                return; 
            }
            else
            {
                $e_forms->start_form("versions", $_SERVER['PHP_SELF'].($_SERVER['QUERY_STRING'] === "debug" ? "?debug" : ""));
                $page_content = "<span class='glyphicon glyphicon-ok'></span> ".LANINS_042;
                // @TODO Check database version here?
/*
                $mysql_note = mysql_get_server_info();
                if (version_compare($mysql_note, MIN_MYSQL_VERSION, '>='))
                {
                    $success = FALSE;

                }
*/
                // Do brute force for now - Should be enough
                
                if(!empty($this->previous_steps['mysql']['overwritedb']))
                {
                    if($this->dbqry('DROP DATABASE `'.$this->previous_steps['mysql']['db'].'` '))
                    {
                        $page_content .= "<br /><span class='glyphicon glyphicon-ok'></span>  ".LANINS_136;
                    }
                    else 
                    {
                        $success = false;
                        $page_content .= "<br /><br />".LANINS_043.nl2br("\n\n<b>".LANINS_083."\n</b><i>".e107::getDb()->getLastErrorText()."</i>");
                    }
                        
                }
                
                if($this->previous_steps['mysql']['createdb'] == 1)
                {
                    $notification = "<br /><span class='glyphicon glyphicon-ok'></span> ".LANINS_044;
                    $query = 'CREATE DATABASE `'.$this->previous_steps['mysql']['db'].'` CHARACTER SET `utf8mb4` ';
                    
                }
                else
                {
                    $notification = "<br /><span class='glyphicon glyphicon-ok'></span>  ".LANINS_137;
                    $query = 'ALTER DATABASE `'.$this->previous_steps['mysql']['db'].'` CHARACTER SET `utf8mb4` ';
                }

                if (!$this->dbqry($query))
                {
                    $success = false;
                    $alertType = 'error';
                    $page_content .= "<br /><br />";
                    $page_content .= (empty($this->previous_steps['mysql']['createdb'])) ? LANINS_129 : LANINS_043;


                    $page_content .= nl2br("\n\n<b>".LANINS_083."\n</b><i>".e107::getDb()->getLastErrorText()."</i>");
                }
                else
                {
                    $this->dbqry('SET NAMES `utf8mb4`');

                    $page_content .= $notification; // "
                }
            }
            
            if($success)
            {

                // $page_content .= "<br /><br />".LANINS_045."<br /><br />";
                $this->add_button("submit", LAN_CONTINUE);
                $alertType = 'success';
            }
            else 
            {
                $this->add_button("back", LAN_CONTINUE);
            }
            $head = $page_content;
        }
        if ($success)
        {
            $this->finish_form();
        }
        else
        {
            $this->finish_form(3);
        }

        $this->template->SetTag("stage_content", "<div class='alert alert-block alert-{$alertType}'>".$head."</div>".$e_forms->return_form());

        installLog::add('Stage 3 completed');

        return null;
    }

    private function stage_4()
    {
        global $e_forms;

        $this->stage = 4;
        installLog::add('Stage 4 started');

        $this->template->SetTag("installation_heading", LANINS_001);
        $this->template->SetTag("stage_pre", LANINS_002);
        $this->template->SetTag("stage_num", LANINS_007);
        $this->template->SetTag("stage_title", LANINS_008);
        $this->template->SetTag("percent", 50);
        $this->template->SetTag("bartype", 'warning');
        $not_writable = $this->check_writable_perms();        // Some directories MUST be writable
        $opt_writable = $this->check_writable_perms('can_write');        // Some directories CAN optionally be writable
        $version_fail = false;
        $perms_errors = "";
        $mysql_pass = false;

        $this->setDb();

        if(count($not_writable))
        {
            $perms_pass = false;
            foreach ($not_writable as $file)
            {
                $perms_errors .= (substr($file, -1) === "/" ? LANINS_010a : LANINS_010)."<br /><b>{$file}</b><br />\n";
            }
            $perms_notes = LANINS_018;
        }
        elseif (count($opt_writable))
        {
            $perms_pass = true;
            foreach ($opt_writable as $file)
            {
                $perms_errors .= (substr($file, -1) === "/" ? LANINS_010a : LANINS_010)."<br /><b>{$file}</b><br />\n";
            }
            $perms_notes = LANINS_106;
        }
        elseif (filesize('e107_config.php') > 1)
        {    // Must start from an empty e107_config.php
            $perms_pass = FALSE;
            $perms_errors = LANINS_121;
            $perms_notes = "<span class='glyphicon glyphicon-remove'></span> ".LANINS_122;
        }
        else
        {
            $perms_pass = true;
            $perms_errors = "&nbsp;";
            $perms_notes = "<span class='glyphicon glyphicon-ok'></span> ".LANINS_017;
        }

        if(!function_exists("mysql_connect") && !defined('PDO::ATTR_DRIVER_NAME'))
        {
            $version_fail = true;
            $mysql_note = LAN_ERROR;
            $mysql_help = LANINS_012;
        }
        elseif (!e107::getDb()->connect($this->previous_steps['mysql']['server'], $this->previous_steps['mysql']['user'], $this->previous_steps['mysql']['password']))
//        elseif (!@mysql_connect($this->previous_steps['mysql']['server'], $this->previous_steps['mysql']['user'], $this->previous_steps['mysql']['password']))
        {
            $mysql_note = LAN_ERROR;
            $mysql_help = LANINS_013;
        }
        else
        {
        //    $mysql_note = mysql_get_server_info();
            $mysql_note = e107::getDb()->getServerInfo();

            if($this->pdo == true)
            {
                $mysql_note .= " (PDO)";
            }

            if (version_compare($mysql_note, MIN_MYSQL_VERSION, '>='))
            {
                $mysql_help = "<span class='glyphicon glyphicon-ok'></span> ".LANINS_017;
                $mysql_pass = true;
            }
            else
            {
                $mysql_help = "<span class='glyphicon glyphicon-remove'></span> ".LANINS_105;
            }
        }

        $php_version = PHP_VERSION;

        if(version_compare($php_version, MIN_PHP_VERSION, ">="))
        {
            $php_help = "<span class='glyphicon glyphicon-ok'></span> ".LANINS_017;
        }
        else
        {
            $php_help = "<span class='glyphicon glyphicon-remove'></span> ".LANINS_019;
        }



        $e_forms->start_form("versions", $_SERVER['PHP_SELF'].($_SERVER['QUERY_STRING'] === "debug" ? "?debug" : ""));


        
        $permColor    = ($perms_pass == true) ? "text-success" : "text-danger";
        $PHPColor     = ($version_fail == false) ? "text-success" : "text-danger";
        $mysqlColor    = ($mysql_pass == true) ? "text-success" : "text-danger";


        $extensionCheck = array(
            'pdo'      => array('label' => "PDO (MySQL)", 'status' => extension_loaded('pdo_mysql'), 'url' => 'https:/php.net/manual/en/book.pdo.php'),
            'xml'      => array('label' => LANINS_050, 'status' => function_exists('utf8_encode') && class_exists('DOMDocument', false), 'url' => 'http://php.net/manual/en/ref.xml.php'),
            'exif'     => array('label' => LANINS_048, 'status' => function_exists('exif_imagetype'), 'url' => 'http://php.net/manual/en/book.exif.php'),
            'fileinfo' => array('label' => "FileInfo. Extension", 'status' => extension_loaded('fileinfo'), 'url' => 'https://www.php.net/manual/en/book.fileinfo'),
            'curl'      => array('label' => 'Curl Library', 'status' => function_exists('curl_version'), 'url' => 'http://php.net/manual/en/book.curl.php'),
            'gd'        => array('label' => 'GD Library', 'status' => function_exists('gd_info'), 'url' => 'http://php.net/manual/en/book.image.php'),
            'mb'        => array('label' => 'MB String Library', 'status' => function_exists('mb_strimwidth'), 'url' => 'http://php.net/manual/en/book.mbstring.php'),
        );



        $output = "
            <table class='table table-striped table-bordered' style='width: 100%; margin-left: auto; margin-right: auto;'>
                <tr>
                    <td style='width: 20%;'>".LANINS_014."</td>
                    <td style='width: 40%;'>{$perms_errors}</td>
                    <td class='{$permColor}' style='width: 40%;'>{$perms_notes}</td>
                </tr>
                
                <tr>
                    <td>".LANINS_015."</td>
                    <td>{$php_version}</td>
                    <td class='{$PHPColor}'>{$php_help}</td>
                </tr>
                
                <tr>
                    <td>MySQL</td>
                    <td>{$mysql_note}</td>
                    <td class='{$mysqlColor}'>{$mysql_help}</td>
                </tr>";

                foreach($extensionCheck as $ext)
                {
                    $statusText = ($ext['status'] === true) ? LANINS_051 : LANINS_052;
                    $statusColor = ($ext['status'] === true) ? "text-success" : "text-error";
                    $statusIcon = ($ext['status'] === true) ? "<i class='glyphicon glyphicon-ok'></i> ".LANINS_017 : str_replace(array("[x]",'[y]'), array($ext['label'], "<a href='".$ext['url']."'>php.net</a>"), LANINS_145);

                    $output .= "
                    <tr>
                        <td>".$ext['label']."</td>
                        <td>".$statusText."</td>
                        <td class='".$statusColor."'>".$statusIcon."</td>
                    </tr>";
                }


                $output .= "
            </table>\n";

        if(!$perms_pass || (($extensionCheck['xml']['status'] !== true)))
        {
            $this->add_button("retest_perms", LANINS_009);
            $this->stage = 3; // make the installer jump back a step
        }
        elseif (!$version_fail && ($extensionCheck['xml']['status'] == true))
        {
            $this->add_button("continue_install", LAN_CONTINUE);
        }

        $this->finish_form();
        $this->template->SetTag("stage_content", $output.$e_forms->return_form());
        installLog::add('Stage 4 completed');
    }

    /**
     * Install stage 5 - collect Admin Login Data.
     *
     * @return string HTML form of stage 5.
     */
    private function stage_5()
    {
        global $e_forms;

        $this->setDb();
        $this->updatePaths(); // update dynamic paths and create media and system directories - requires mysql info.

        
        $this->stage = 5;
        installLog::add('Stage 5 started');

        $this->display_required();
        $this->template->SetTag("installation_heading", LANINS_001);
        $this->template->SetTag("stage_pre", LANINS_002);
        $this->template->SetTag("stage_num", LANINS_046);
        $this->template->SetTag("stage_title", defset('LANINS_147', 'Administration'));
        // $this->template->SetTag("onload", "document.getElementById('u_name').focus()");
        $this->template->SetTag("percent", 60);
        $this->template->SetTag("bartype", 'warning');

        $e_forms->start_form("admin_info", $_SERVER['PHP_SELF'].($_SERVER['QUERY_STRING'] === "debug" ? "?debug" : ""));
        $output = "
            <div style='width: 100%; padding-left: auto; padding-right: auto;'>
            <table class='table table-striped table-bordered'>
                <colgroup>
                    <col style='width:35%' />
                    <col  />
                </colgroup>
                <tr>
                    <td><label for='u_name'>".LANINS_072."</label>".HELPICON."<span class='field-help'>".LANINS_073."</span></td>
                    <td>
                        <input class='form-control' type='text' autofocus name='u_name' id='u_name' placeholder='admin' size='30' required='required' value='".(isset($this->previous_steps['admin']['user']) ? $this->previous_steps['admin']['user'] : "")."' maxlength='60' />
                        
                    </td>
                </tr>
                
                <tr>
                    <td><label for='d_name'>".LANINS_074."</label>".HELPICON."<span class='field-help'>".LANINS_123."</span></td>
                    <td>
                        <input class='form-control' type='text' name='d_name' id='d_name' size='30' placeholder='Administrator'  value='".(isset($this->previous_steps['admin']['display']) ? $this->previous_steps['admin']['display'] : "")."' maxlength='60' />
    
                    </td>
                </tr>
                
                <tr>
                    <td><label for='pass1'>".LANINS_076."</label>".HELPICON."<span class='field-help'>".LANINS_124."</span></td>
                    <td>
                        <input class='form-control' type='password' name='pass1' size='30' id='pass1' value='' maxlength='60' required='required' />
                        
                    </td>
                </tr>
                
                <tr>
                    <td><label for='pass2'>".LANINS_078."</label>".HELPICON."<span class='field-help'>".LANINS_079."</span></td>
                    <td>
                        <input class='form-control' type='password' name='pass2' size='30' id='pass2' value='' maxlength='60' required='required' />
                        
                    </td>
                </tr>
                
                <tr>
                    <td><label for='email'>".LANINS_080."</label>".HELPICON."<span class='field-help'>".LANINS_081."</span></td>
                    <td>
                        <input class='form-control' type='text' name='email' size='30' id='email' required='required' placeholder='admin@mysite.com' value='".(isset($this->previous_steps['admin']['email']) ? $this->previous_steps['admin']['email'] : '')."' maxlength='100' />
                    
                    </td>
                </tr>
                </table>
                
                <table class='table table-striped table-bordered'>
                <colgroup>
                    <col style='width:35%' />
                    <col  />
                </colgroup>
                <tr>
                    <td><label for='admincss'>".LANINS_146."</label></td>
                    <td>";

                $d = $this->get_theme_xml('bootstrap3');
                $opts = array();

                foreach($d['css'] as $val)
                {
                    $key = $val['name'];

                    if($key !== 'css/modern-light.css' && ($key !== 'css/modern-dark.css'))
                    {
                        continue;
                    }

                    $opts[$key] = array (
                            'title'         => $val['info'],
                            'preview'       => e_THEME."bootstrap3/".$val['thumbnail'],
                            'description'   =>'',
                            'category'=>''
                            );


                }

                $output .= $this->thumbnailSelector('admincss', $opts, 'css/modern-dark.css');

                $output .= "
                        
                    
                    </td>
                </tr>
            </table>
            <br /><br />
            </div>
            \n";
        $e_forms->add_plain_html($output);
        $this->finish_form();
        $this->add_button("submit", LAN_CONTINUE);
        $this->template->SetTag("stage_content", $e_forms->return_form());
        installLog::add('Stage 5 completed');

        return null;
    }

    /**
     * Collect User's Website Preferences
     *
     * @return string HTML form of stage 6.
     */
    private function stage_6()
    {
        global $e_forms;
        $tp = e107::getParser();
        $this->stage = 6;
        installLog::add('Stage 6 started');

        // -------------------- Save Step 5 Data -------------------------
        if(!vartrue($this->previous_steps['admin']['user']) || varset($_POST['u_name']))
        {
            $_POST['u_name'] = str_replace(array("'", '"'), "", $_POST['u_name']);
            $this->previous_steps['admin']['user'] = $tp->filter($_POST['u_name']);
        }

        if(!vartrue($this->previous_steps['admin']['display']) || varset($_POST['d_name']))
        {
            $_POST['d_name'] = str_replace(array("'", '"'), "", $_POST['d_name']);
            if ($_POST['d_name'] == "")
            {
                $this->previous_steps['admin']['display'] = $tp->filter($_POST['u_name']);
            }
            else
            {
                $this->previous_steps['admin']['display'] = $tp->filter($_POST['d_name']);
            }
        }

        if(!vartrue($this->previous_steps['admin']['email']) || varset($_POST['email']))
        {
            $this->previous_steps['admin']['email'] = $tp->filter($_POST['email'],'email');
        }

        if(varset($_POST['pass1']) || !vartrue($this->previous_steps['admin']['password']))
        {
            if($_POST['pass1'] != $_POST['pass2'])
            {
                $this->required['pass1'] = LANINS_049; // passwords don't match.
            }
            elseif(!vartrue($_POST['pass1']))
            {
                $this->required['pass1'] = LANINS_077;
            }
            else
            {
                $this->previous_steps['admin']['password'] = $_POST['pass1'];
            }
        }

        if(!empty($_POST['admincss']))
        {
            $this->previous_steps['prefs']['admincss'] = $tp->filter($_POST['admincss']);
        }
        else // empty
        {
            $this->previous_steps['prefs']['admincss'] = 'css/bootstrap-dark.min.css';
        }

        // -------------   Validate Step 5 Data. --------------------------
        if(!vartrue($this->previous_steps['admin']['user']) || !vartrue($this->previous_steps['admin']['password']))
        {
            $this->required['u_name'] = LANINS_086; //
        }

        if(!empty($this->required['u_name']) || !empty($this->required['pass1']))
        {
            return $this->stage_5();
        }

        // required for various core routines
        if(!defined('USERNAME'))
        {
            define('USERNAME', $this->previous_steps['admin']['user']);
            define('USEREMAIL', $this->previous_steps['admin']['email']);
        }

        // ------------- Step 6 Form --------------------------------
        $this->display_required();
        $this->template->SetTag("installation_heading", LANINS_001);
        $this->template->SetTag("stage_pre", LANINS_002);
        $this->template->SetTag("stage_num", LANINS_056);
        $this->template->SetTag("stage_title", LANINS_117); // Website Preferences;
        // $this->template->SetTag("onload", "document.getElementById('sitename').focus()");
        $this->template->SetTag("percent", 70);
        $this->template->SetTag("bartype", 'warning');

        $e_forms->start_form("pref_info", $_SERVER['PHP_SELF'].($_SERVER['QUERY_STRING'] === "debug" ? "?debug" : ""));
        $output = "
            <div style='width: 100%; padding-left: auto; padding-right: auto; margin-bottom:20px'>
            <table class='table table-striped'>
                  <colgroup>
                    <col class='col-label'  />
                    <col class='col-control'  />
                  </colgroup>
                <tr>
                    <td><label for='sitename'>".LANINS_107."</label></td>
                    <td>
                        <input class='form-control' type='text' autofocus placeholder=\"".LANINS_108."\" required='required' name='sitename' id='sitename' size='30' value='".(vartrue($_POST['sitename']) ? $_POST['sitename'] : "")."' maxlength='60' />
                    </td>
                </tr>

                <tr>
                    <td><label>".LANINS_109."</label></td>
                    <td style='padding-right:0'>

                            ";

                $themes = $this->get_themes();

                $opts = array();

                foreach($themes as $val)
                {

                    /*if($val != 'bootstrap3' && $val != 'voux')
                    {
                        continue;
                    }*/



                    $themeInfo     = $this->get_theme_xml($val);



                    $opts[$val] = array(
                        'title' =>vartrue($themeInfo['@attributes']['name']),
                        'category'     => vartrue($themeInfo['category']),
                        'preview'   =>  e_THEME.$val."/".$themeInfo['thumbnail'],
                        'description'   => vartrue($themeInfo['info'])
                    );


    /*                $title         = vartrue($themeInfo['@attributes']['name']);
                    $category     = vartrue($themeInfo['category']);
                    $preview    = e_THEME.$val."/".$themeInfo['thumbnail'];
                    $description = vartrue($themeInfo['info']);

                    if(!is_readable($preview))
                    {
                        continue;
                    }


                    $thumbnail = "<img class='img-responsive img-fluid thumbnail'  src='".$preview ."' alt='".$val."' />";


                    $selected = ($val === DEFAULT_INSTALL_THEME) ? " checked" : "";

                    $output .= "
                                    <div class='col-md-6 theme-cell' >
                                        <label class='theme-selection' title=\"".$description."\"><input type='radio' name='sitetheme' value='{$val}' required='required' $selected />
                                        <div>".$thumbnail."
                                        <h5>".$title." <small>(".$category.")</small><span class='glyphicon glyphicon-ok text-success'></span></h5>
                                        </div>
                                        </label>
                                    </div>";*/
                }

                $output .= $this->thumbnailSelector('sitetheme', $opts, DEFAULT_INSTALL_THEME);


                $output .= "

                    </td>

                </tr>
                
                <tr>
                    <td><label for='install_plugins'>".LANINS_118."</label></td>
                    <td>
                        <input type='checkbox' name='install_plugins' checked='checked' id='install_plugins' value='1' />
                        <span class='field-help'>".LANINS_119."</span>
                    </td>
                </tr>
                
                <tr>
                    <td><label for='generate_content'>".LANINS_111."</label></td>
                    <td>
                        <input type='checkbox' name='generate_content' checked='checked' id='generate_content' value='1' />
                        <span class='field-help'>".LANINS_112."</span>
                    </td>
                </tr>
            </table>
            <br /><br />
            </div>
            \n";
        $e_forms->add_plain_html($output);
        $this->finish_form();
        $this->add_button("submit", LAN_CONTINUE);
        $this->template->SetTag("stage_content", $e_forms->return_form());
        installLog::add('Stage 6 completed');

        return null;
    }


    private function thumbnailSelector($name, $opts, $default='')
    {

        $ret = '';

        foreach($opts as $key=>$val)
        {

            if(!is_readable($val['preview']) || !is_file($val['preview']))
            {
                continue;
            }


            $thumbnail = "<img class='img-responsive img-fluid thumbnail'  src='".$val['preview'] ."' alt='".$key."' />";


            $selected = ($key === $default) ? " checked" : "";

            $categoryInfo = !empty($val['category']) ? "<small>(".$val['category'].")</small>" : "";

            $ret .= "
                    <div class='col-md-6 theme-cell' >
                        <label class='theme-selection' title=\"".$val['description']."\"><input type='radio' name='".$name."' value='{$key}' required='required' $selected />
                            <div>".$thumbnail."
                                <h5>".$val['title']." ".$categoryInfo."<span class='glyphicon glyphicon-ok text-success'></span></h5>
                            </div>
                        </label>
                    </div>";
        }


        return $ret;

    }

    private function stage_7()
    {
        global $e_forms;
        $tp = e107::getParser();

        $this->e107->e107_dirs['SYSTEM_DIRECTORY'] = str_replace("[hash]",$this->e107->site_path,$this->e107->e107_dirs['SYSTEM_DIRECTORY']);    
        $this->e107->e107_dirs['CACHE_DIRECTORY']  = str_replace("[hash]",$this->e107->site_path,$this->e107->e107_dirs['CACHE_DIRECTORY']);
        $this->e107->e107_dirs['SYSTEM_DIRECTORY'] = str_replace("/".$this->e107->site_path,"",$this->e107->e107_dirs['SYSTEM_DIRECTORY']);
        $this->e107->e107_dirs['MEDIA_DIRECTORY']  = str_replace("/".$this->e107->site_path,"",$this->e107->e107_dirs['MEDIA_DIRECTORY']);

        $this->stage = 7;
        installLog::add('Stage 7 started');

        // required for various core routines
        if(!defined('USERNAME'))
        {
            define('USERNAME', $this->previous_steps['admin']['user']);
            define('USEREMAIL', $this->previous_steps['admin']['email']);
        }

        if(varset($_POST['sitename']))
        {
            $this->previous_steps['prefs']['sitename'] = $tp->filter($_POST['sitename']);
        }

        if(varset($_POST['sitetheme']))
        {
            $this->previous_steps['prefs']['sitetheme'] = $tp->filter($_POST['sitetheme']);
        }

        if(varset($_POST['generate_content']))
        {
            $this->previous_steps['generate_content'] = $tp->filter($_POST['generate_content'],'int');
        }

        if(varset($_POST['install_plugins']))
        {
            $this->previous_steps['install_plugins'] = $tp->filter($_POST['install_plugins'],'int');
        }

        // Validate
        if(!vartrue($this->previous_steps['prefs']['sitename']))
        {
            $this->required['sitename'] = LANINS_113; // 'Please enter a website name.'; // should be used to highlight the required field. (using css for example)
        }
        if(!vartrue($this->previous_steps['prefs']['sitetheme']))
        {
             $this->required['sitetheme'] = LANINS_114; // 'Please select a theme.';
        }

        if(!empty($this->required['sitetheme']) || !empty($this->required['sitename']))
        {
            return $this->stage_6();
        }

        $config_file = "<?php
/*
 * e107 website system
 *
 * Copyright (C) 2008-".date('Y')." e107 Inc (e107.org)
 * Released under the terms and conditions of the
 * GNU General Public License (http://www.gnu.org/licenses/gpl.txt)
 *
 * e107 configuration file
 *
 * This file has been generated by the installation script on ".date('r').".
 */

\$mySQLserver    = '{$this->previous_steps['mysql']['server']}';
\$mySQLuser      = '{$this->previous_steps['mysql']['user']}';
\$mySQLpassword  = '{$this->previous_steps['mysql']['password']}';
\$mySQLdefaultdb = '{$this->previous_steps['mysql']['db']}';
\$mySQLprefix    = '{$this->previous_steps['mysql']['prefix']}';
\$mySQLcharset   = 'utf8mb4';

\$ADMIN_DIRECTORY     = '{$this->e107->e107_dirs['ADMIN_DIRECTORY']}';
\$FILES_DIRECTORY     = '{$this->e107->e107_dirs['FILES_DIRECTORY']}';
\$IMAGES_DIRECTORY    = '{$this->e107->e107_dirs['IMAGES_DIRECTORY']}';
\$THEMES_DIRECTORY    = '{$this->e107->e107_dirs['THEMES_DIRECTORY']}';
\$PLUGINS_DIRECTORY   = '{$this->e107->e107_dirs['PLUGINS_DIRECTORY']}';
\$HANDLERS_DIRECTORY  = '{$this->e107->e107_dirs['HANDLERS_DIRECTORY']}';
\$LANGUAGES_DIRECTORY = '{$this->e107->e107_dirs['LANGUAGES_DIRECTORY']}';
\$HELP_DIRECTORY      = '{$this->e107->e107_dirs['HELP_DIRECTORY']}';
\$MEDIA_DIRECTORY      = '{$this->e107->e107_dirs['MEDIA_DIRECTORY']}';
\$SYSTEM_DIRECTORY    = '{$this->e107->e107_dirs['SYSTEM_DIRECTORY']}';

\$E107_CONFIG = ['site_path' => '{$this->previous_steps['paths']['hash']}'];


// -- Optional --
// define('e_EMAIL_CRITICAL', '".$this->previous_steps['admin']['email']."');  // email the admin (and share no details with the user) if a critical error occurs. 
// define('e_LOG_CRITICAL', true); // log critical errors but do not display them to user. (similar to above, but no email is sent - instead error goes into a log file)   
// define('e_DEBUG', true); // Enable debug mode to allow displaying of errors
// define('e_HTTP_STATIC', 'https://static.mydomain.com/');  // Use a static subdomain for js/css/images etc. 
// define('e_MOD_REWRITE_STATIC', true); // Rewrite static image urls. 
// define('e_GIT', 'path-to-git');  // Path to GIT for developers
// define('X-FRAME-SAMEORIGIN', false); // Option to override X-Frame-Options 
// define('e_PDO, true); // Enable PDO mode (used in PHP > 7 and when mysql_* methods are not available)

";
/*
if($this->pdo == true)
{
    $config_file .= 'define("e_PDO", true);';
    $config_file .= "\n\n";
}*/


// New format e107 v2.4+

$config_file = "<?php
/*
 * e107 website system
 *
 * Copyright (C) 2008-".date('Y')." e107 Inc (e107.org)
 * Released under the terms and conditions of the
 * GNU General Public License (http://www.gnu.org/licenses/gpl.txt)
 *
 * e107 configuration file
 *
 * This file has been generated by the installation script on ".date('r').".
 */
 
// -- Optional --
// const e_EMAIL_CRITICAL = '{$this->previous_steps['admin']['email']}';  // email the admin (and share no details with the user) if a critical error occurs. 
// const e_LOG_CRITICAL = true; // log critical errors but do not display them to user. (similar to above, but no email is sent - instead error goes into a log file)
// const e_DEBUG = true;  // Enable debug mode to allow displaying of errors
// const e_HTTP_STATIC = 'https://static.mydomain.com/';  // Use a static subdomain for js/css/images etc. 
// const e_MOD_REWRITE_STATIC = true; // Rewrite static image urls. 
// const e_GIT = 'path-to-git';  // Path to GIT for developers
// const X_FRAME_SAMEORIGIN = false; // Option to override X-Frame-Options 
 

return [
    'database' => [
        'server'   => '{$this->previous_steps['mysql']['server']}',
        'user'     => '{$this->previous_steps['mysql']['user']}',
        'password' => '{$this->previous_steps['mysql']['password']}',
        'defaultdb'=> '{$this->previous_steps['mysql']['db']}',
        'prefix'   => '{$this->previous_steps['mysql']['prefix']}',
        'charset'  => 'utf8mb4',
    ],
    'paths' => [
        'admin'      => '{$this->e107->e107_dirs['ADMIN_DIRECTORY']}',
        'files'      => '{$this->e107->e107_dirs['FILES_DIRECTORY']}',
        'images'     => '{$this->e107->e107_dirs['IMAGES_DIRECTORY']}',
        'themes'     => '{$this->e107->e107_dirs['THEMES_DIRECTORY']}',
        'plugins'    => '{$this->e107->e107_dirs['PLUGINS_DIRECTORY']}',
        'handlers'   => '{$this->e107->e107_dirs['HANDLERS_DIRECTORY']}',
        'languages'  => '{$this->e107->e107_dirs['LANGUAGES_DIRECTORY']}',
        'help'       => '{$this->e107->e107_dirs['HELP_DIRECTORY']}',
        'media'      => '{$this->e107->e107_dirs['MEDIA_DIRECTORY']}',
        'system'     => '{$this->e107->e107_dirs['SYSTEM_DIRECTORY']}',
    ],
    'site' => [
        'site_path'  => '{$this->previous_steps['paths']['hash']}',
    ]
];
";


        $config_result = $this->write_config($config_file);        

        if ($config_result)
        {
            // $page = $config_result."<br />";
            installLog::add('Error writing config file: '.$config_result);
        }
        else
        {
            installLog::add('Config file written successfully');
        }
         

        // Data is okay - Continue.

        // $this->previous_steps['prefs']['sitename']         = $_POST['sitename'];
        // $this->previous_steps['prefs']['sitetheme']         = $_POST['sitetheme'];
        // $this->previous_steps['generate_content']         = $_POST['generate_content'];

        $this->template->SetTag("installation_heading", LANINS_001);
        $this->template->SetTag("stage_pre", LANINS_002);
        $this->template->SetTag("stage_num", LANINS_058);
        $this->template->SetTag("stage_title", LANINS_055);
        $this->template->SetTag("percent", 80);
        $this->template->SetTag("bartype", 'warning');

        $e_forms->start_form("confirmation", $_SERVER['PHP_SELF'].($_SERVER['QUERY_STRING'] === "debug" ? "?debug" : ""));
        $page = '<div class="alert alert-success">'.nl2br(LANINS_057).'</div>';
        $this->finish_form();
        $this->add_button("submit", LAN_CONTINUE);



        $this->template->SetTag("stage_content", $page.$e_forms->return_form());
        installLog::add('Stage 7 completed');

        return null;
    }

    /**
     *    Stage 8 - actually create database and set up the site
     *
     *    @return null
     */
    private function stage_8()
    {
        global $e_forms;
    
        //$system_dir = str_replace("/".$this->e107->site_path,"",$this->e107->e107_dirs['SYSTEM_DIRECTORY']);
        //$media_dir = str_replace("/".$this->e107->site_path,"",$this->e107->e107_dirs['MEDIA_DIRECTORY']);

        // required for various core routines
        if(!defined('USERNAME'))
        {
            define('USERNAME', $this->previous_steps['admin']['user']);
            define('USEREMAIL', $this->previous_steps['admin']['email']);
        }

        $this->setDb();

        define('THEME', e_THEME.$this->previous_steps['prefs']['sitetheme'].'/');
        define('THEME_ABS', e_THEME_ABS.$this->previous_steps['prefs']['sitetheme'].'/');
        define('USERCLASS_LIST', '253,247,254,250,251,0');

        $this->stage = 8;
        installLog::add('Stage 8 started');

        $this->template->SetTag("installation_heading", LANINS_001);
        $this->template->SetTag("stage_pre", LANINS_002);
        $this->template->SetTag("stage_num", LANINS_120);
        $this->template->SetTag("stage_title", LANINS_071);
        $this->template->SetTag("percent", 100);
        $this->template->SetTag("bartype", 'success');
    
        $htaccessError = $this->htaccess();
        $this->saveFileTypes();

        $e_forms->start_form("confirmation", "index.php");

            $errors = $this->create_tables();
            if (!empty($errors))
            {
                installLog::add('Errors creating tables: '.$errors);
                $page = $errors."<br />";
                $alertType = 'error';
            }
            else
            {
                $alertType = 'success';
                installLog::add('Tables created successfully');
                $this->import_configuration();
                $page = nl2br(LANINS_125)."<br />";
                $page .= (is_writable('e107_config.php')) ? "<br />".str_replace("e107_config.php","<b>e107_config.php</b>",LANINS_126) : "";
                
                if($htaccessError)
                {
                    $page .= "<br />".$htaccessError;
                }    
                $this->add_button('submit', LAN_CONTINUE);
            }

        $this->stats();
        $this->finish_form();

        $this->template->SetTag("stage_content", "<div class='alert alert-block alert-{$alertType}'>".$page."</div>".$e_forms->return_form());
        installLog::add('Stage 8 completed');

        e107::getMessage()->reset(false, false, true);

        return null;
    }

    private function saveFileTypes()
    {
        $data = '<?xml version="1.0" encoding="utf-8"?>
<e107Filetypes>
    <class name="member" type="zip,gz,jpg,jpeg,png,gif,webp,xml,pdf" maxupload="2M" />
    <class name="admin" type="zip,gz,jpg,jpeg,png,gif,webp,xml,pdf" maxupload="10M" />
    <class name="main" type="zip,gz,rar,jpg,jpeg,png,gif,webp,xml,pdf,ppt,pptx,mov,mp4,mp3,doc,docx,xls,xlsm,mp3,mp4,wav,ogg,webm,mid,midi,torrent,txt,dmg,msi" maxupload="50M" />
</e107Filetypes>';

        return file_put_contents($this->e107->e107_dirs['SYSTEM_DIRECTORY']."filetypes.xml",$data);

    }



    protected function stats()
    {
        global $e_forms;

        $data = array('name'=>$this->previous_steps['prefs']['sitename'], 'theme'=>$this->previous_steps['prefs']['sitetheme'], 'language'=>$this->previous_steps['language'], 'url'=>$_SERVER['SCRIPT_URI'],'version'=> defset('e_VERSION'), 'php'=>defset('PHP_VERSION'));
        $base = base64_encode(http_build_query($data, '','&'));
        $url = "https://e107.org/e-install/".$base;
        $e_forms->add_plain_html("<img src='".$url."' style='width:1px; height:1px' />");

    }



    /**
     *    htaccess - handle the .htaccess file
     *
     *    @return string $error
     */    
    protected function htaccess()
    {
        $error = "";
            
        if(!file_exists(".htaccess"))
        {
            if(!rename("e107.htaccess",".htaccess"))
            {
                $error = LANINS_142;
            }
            elseif($_SERVER['QUERY_STRING'] === "debug")
            {
                rename(".htaccess","e107.htaccess");
                $error = "DEBUG: Rename from e107.htaccess to .htaccess was successful";        
            }
        }
        elseif(file_exists("e107.htaccess"))
        {
            $srch = array('[b]','[/b]');
            $repl = array('<b>','</b>');
            $error = str_replace($srch,$repl, LANINS_144); // too early to use e107::getParser() so use str_replace();
        }        
        return $error;    
    }
                    
    /**
     * Import and generate preferences and default content.
     *
     * @return boolean
     */
    public function import_configuration()
    {
        installLog::add('Starting configuration import');

        // PRE-CONFIG start - create and register blank config instances - do not load!
        $config_aliases = array(
            'core',
            'core_backup',
            'emote', 
            'menu',
            'search',
            'notify',
        );
        foreach ($config_aliases as $alias) 
        {
            e107::getConfig($alias, false)->clearPrefCache();
        }
        // PRE-CONFIG end        

        // Basic stuff to get the handlers/classes to work.


        // $udirs = "admin/|plugins/|temp";
        // $e_SELF = $_SERVER['PHP_SELF'];
        // $e_HTTP = preg_replace("#".$udirs."#i", "", substr($e_SELF, 0, strrpos($e_SELF, "/"))."/");

        // define("MAGIC_QUOTES_GPC", (ini_get('magic_quotes_gpc') ? true : false));
        // define('CHARSET', 'utf-8');
        // define("e_LANGUAGE", $this->previous_steps['language']);
        // define('e_SELF', 'http://'.$_SERVER['HTTP_HOST']) . ($_SERVER['PHP_SELF'] ? $_SERVER['PHP_SELF'] : $_SERVER['SCRIPT_FILENAME']);

        $themeImportFile = array();
        $themeImportFile[0] = $this->e107->e107_dirs['THEMES_DIRECTORY'].$this->previous_steps['prefs']['sitetheme']."/install.xml";
        $themeImportFile[1] = $this->e107->e107_dirs['THEMES_DIRECTORY'].$this->previous_steps['prefs']['sitetheme']."/install/install.xml";
        // $themeImportFile[3] = $this->e107->e107_dirs['CORE_DIRECTORY']. "xml/default_install.xml";

        $XMLImportfile = false;

        if(vartrue($this->previous_steps['generate_content']))
        {
            foreach($themeImportFile as $file)
            {
                if(is_readable($file))
                {
                    $XMLImportfile = $file;
                    break;
                }
            }
        }

        $tp = e107::getParser();

        define('PREVIEWTHEMENAME',""); // Notice Removal.

//        include_lan($this->e107->e107_dirs['LANGUAGES_DIRECTORY'].$this->previous_steps['language']."/lan_prefs.php");
        include_lan($this->e107->e107_dirs['LANGUAGES_DIRECTORY'].$this->previous_steps['language']."/admin/lan_theme.php");


        $coreConfig = $this->e107->e107_dirs['CORE_DIRECTORY']. "xml/default_install.xml";        
        $ret = e107::getXml()->e107Import($coreConfig, 'replace', true, false); // Add core pref values
        installLog::add('Attempting to Write Core Prefs.');
        installLog::add(print_r($ret, true));

        /*
        if($XMLImportfile) // We cannot rely on themes to include all prefs..so use 'replace'. 
        {
            $ret2 = e107::getXml()->e107Import($XMLImportfile, 'replace', true, false); // Overwrite specific core pref and tables entries. 
            installLog::add('Attempting to write Theme Prefs/Tables (install.xml)');
            installLog::add(print_r($ret2, true));
        }
        
    */    //Create default plugin-table entries.
        // e107::getConfig('core')->clearPrefCache();
        installLog::add('Updating Plugin Tables');
        e107::getPlug();
    //    e107::getPlugin()->update_plugins_table('update');
        installLog::add('Plugins table updated');

        // Install Theme-required plugins
        if(vartrue($this->previous_steps['install_plugins']) && ($themeInfo = $this->get_theme_xml($this->previous_steps['prefs']['sitetheme'])) && isset($themeInfo['plugins']['plugin']))
        {
            $themeName = $this->previous_steps['prefs']['sitetheme'];
            foreach($themeInfo['plugins']['plugin'] as $k=>$plug)
            {
                $this->install_plugin($plug['@attributes']['name']);
                installLog::add('Theme-related ('.$themeName.') plugin installed: '.$plug['@attributes']['name']);
            }
        }

        installLog::add('Updating addon Prefs');

        e107::getSingleton('e107plugin')->save_addon_prefs('update'); // save plugin addon pref-lists. eg. e_latest_list.
        installLog::add('Addon prefs saved');

        // do this AFTER any required plugins are installated. 
        if($XMLImportfile) // We cannot rely on themes to include all prefs..so use 'replace'.
        {
            $ret2 = e107::getXml()->e107Import($XMLImportfile, 'replace', true, false); // Overwrite specific core pref and tables entries.
            installLog::add('Attempting to write Theme Prefs/Tables (install.xml)');
            installLog::add(print_r($ret2, true));
        }


        $tm = e107::getSingleton('themeHandler');
        $tm->noLog = true; // false to enable log
        $tm->setTheme($this->previous_steps['prefs']['sitetheme'], false);

        // Admin log fix - don't allow logs to be called inside pref handler
        // FIX
        e107::getConfig()->setParam('nologs', true); // change to false to enable log
        $pref = e107::getConfig()->getPref();

        // Set Preferences defined during install - overwriting those that may exist in the XML.

        $this->previous_steps['prefs']['sitelanguage']         = $this->previous_steps['language'];
        $this->previous_steps['prefs']['sitelang_init']        = $this->previous_steps['language'];

        $this->previous_steps['prefs']['siteadmin']         = $this->previous_steps['admin']['display'];
        $this->previous_steps['prefs']['siteadminemail']     = $this->previous_steps['admin']['email'];
        $this->previous_steps['prefs']['install_date']      = time();
        $this->previous_steps['prefs']['siteurl']            = e_HTTP;

        $this->previous_steps['prefs']['sitetag']            = "e107 Website System";
        $this->previous_steps['prefs']['sitedisclaimer']    = '';

        $this->previous_steps['prefs']['replyto_name']        = $this->previous_steps['admin']['display'];
        $this->previous_steps['prefs']['replyto_email']        = $this->previous_steps['admin']['email'];

        // Cookie name fix, ended up with 406 error when non-latin words used
        $cookiename                                         = preg_replace('/[^a-z0-9]/i', '', trim($this->previous_steps['prefs']['sitename']));
        $this->previous_steps['prefs']['cookie_name']        = ($cookiename ? substr($cookiename, 0, 4).'_' : 'e_').'cookie';
        
        ### URL related prefs
        // set all prefs so that they are available, required for adminReadModules() - it checks which plugins are installed
        e107::getConfig()->setPref($this->previous_steps['prefs']);
        
        $url_modules = eRouter::adminReadModules();
        $url_locations = eRouter::adminBuildLocations($url_modules);
        $url_config = eRouter::adminBuildConfig(array(), $url_modules);

        $this->previous_steps['prefs']['url_aliases']        = array();
        $this->previous_steps['prefs']['url_config']    = $url_config;
        $this->previous_steps['prefs']['url_modules']        = $url_modules;
        $this->previous_steps['prefs']['url_locations']        = $url_locations;


        eRouter::clearCache();
        installLog::add('Core URL config set to default state');

        $us = e107::getUserSession();

        if($us->passwordAPIExists() === true)
        {
            $this->previous_steps['prefs']['passwordEncoding'] = PASSWORD_E107_PHP;
            $pwdEncoding = PASSWORD_E107_PHP;
        }
        else
        {
            $pwdEncoding = PASSWORD_E107_MD5; // default already in default_install.xml
        }

        // Set prefs, save
        e107::getConfig()->setPref($this->previous_steps['prefs']);
        e107::getConfig()->save(FALSE,TRUE, FALSE); // save preferences made during install.
        installLog::add('Core prefs set to install choices');

        // Create the admin user - replacing any that may be been included in the XML.

        $hash = $us->HashPassword($this->previous_steps['admin']['password'],$this->previous_steps['admin']['user'], $pwdEncoding);

        $ip = $_SERVER['REMOTE_ADDR'];
        $userp = "1, '{$this->previous_steps['admin']['display']}', '{$this->previous_steps['admin']['user']}', '', '".$hash."', '', '{$this->previous_steps['admin']['email']}', '', '', 0, ".time().", 0, 0, 0, 0, 0, '{$ip}', 0, '', 0, 1, '', '', '0', '', ".time().", ''";
    //    $qry = "REPLACE INTO {$this->previous_steps['mysql']['prefix']}user VALUES ({$userp})";
        $this->dbqry("REPLACE INTO {$this->previous_steps['mysql']['prefix']}user VALUES ({$userp})" );
        installLog::add('Admin user created');

        // Add Default user-extended values;
        $extendedQuery = "REPLACE INTO `{$this->previous_steps['mysql']['prefix']}user_extended` (`user_extended_id` ,    `user_hidden_fields`) VALUES ('1', NULL     );";
        $this->dbqry($extendedQuery);

        e107::getDb()->close();
    //    mysql_close($this->dbLink);
        
        e107::getMessage()->reset(false, false, true);

        unset($tp, $pref);
        return false;
    }

    /**
     * Install a Theme required plugin.
     *
     * @param string $plugpath - plugin folder name
     * @return null
     */
    public function install_plugin($plugpath)
    {
        $plugin_handler = e107::getPlugin();
        $plugin_handler->XmlTables('uninstall', ['plugin_path' => $plugpath], ['delete_tables' => true]);
        $plugin_handler->install($plugpath);

        e107::getMessage()->reset(false, false, true);
        
        return null;
    }

    /**
     * Check a DB name or table prefix - anything starting with a numeric followed by 'e' causes problems.
     * Return TRUE if acceptable, FALSE if unacceptable
     * Empty string returns the value of $blank_ok (caller should set TRUE for prefix, FALSE for DB name)
     *
     * @param string $str
     * @param boolean $blank_ok [optional]
     * @return boolean
     */
    function check_name($str, $blank_ok = FALSE)
    {
        if ($str == '')
        {
            return $blank_ok;
        }
        if (preg_match("#^\d+[e|E]#", $str))
        {
            return false;
        }
        return TRUE;
    }

    /**
     * checkDbFields - Check an array of db-related fields for illegal characters
     *
     * @param array $fields
     * @return boolean TRUE for OK, FALSE for invalid character
     */
    function checkDbFields($fields)
    {
        if (!is_array($fields))
        {
            return false;
        }
        foreach (array('server', 'user', 'db', 'prefix') as $key)
        {
            if (isset($fields[$key]) && strtr($fields[$key], "';", '    ') != $fields[$key])
            {
                return FALSE;        // Invalid character found
            }
        }
        return TRUE;
    }

    function get_lan_file()
    {
        if(!empty($_POST['language']))
        {
            $this->previous_steps['language'] = $_POST['language'];
        }        
        
        if(!isset($this->previous_steps['language']))
        {
            $this->previous_steps['language'] = "English";
        }

        include_lan($this->e107->e107_dirs['LANGUAGES_DIRECTORY'].$this->previous_steps['language']."/lan_installer.php");
        // $this->lan_file = "{$this->e107->e107_dirs['LANGUAGES_DIRECTORY']}{$this->previous_steps['language']}/lan_installer.php";
        // if(is_readable($this->lan_file))
        // {
        //        include($this->lan_file);
        // }
        // elseif(is_readable("{$this->e107->e107_dirs['LANGUAGES_DIRECTORY']}English/lan_installer.php"))
        // {
        //        include("{$this->e107->e107_dirs['LANGUAGES_DIRECTORY']}English/lan_installer.php");
        // }
        // else
        // {
        //        $this->raise_error("Fatal: Could not get valid language file for installation.");
        // }
    }

    /**
     * get_languages - check language folder for language names
     *
     * @return array $lanlist
     */
    function get_languages()
    {
        $handle = opendir($this->e107->e107_dirs['LANGUAGES_DIRECTORY']);
        $lanlist = array();        
        while ($file = readdir($handle))
        {
            if ($file !== "." && $file !== ".." && $file !== "/" && $file !== "CVS" && $file !== 'index.html')
            {
                if(file_exists("./{$this->e107->e107_dirs['LANGUAGES_DIRECTORY']}{$file}/lan_installer.php"))
                {
                    $lanlist[] = $file;
                }
            }
        }
        closedir($handle);
        return $lanlist;
    }

    /**
     * get_themes - check theme folder for theme names
     *
     * @return array $themelist
     */
    function get_themes()
    {
        return ['bootstrap5', 'voux'];

        $handle = opendir($this->e107->e107_dirs['THEMES_DIRECTORY']);
        $themelist = array();
        while ($file = readdir($handle))
        {
            if (is_dir($this->e107->e107_dirs['THEMES_DIRECTORY'].$file) && $file !== '_blank')
            {
                if(is_readable("./{$this->e107->e107_dirs['THEMES_DIRECTORY']}{$file}/theme.xml"))
                {
                    $themelist[] = $file;
                }
            }
        }
        closedir($handle);
        return $themelist;
    }

    /**
     * get_theme_xml - check theme.xml file of specific theme
     *
     * @param string $theme_folder
     * @return array|bool $xmlArray OR boolean FALSE if result is no array
     */    
    function get_theme_xml($theme_folder)
    {
        if(!defined("SITEURL"))
        {
            define("SITEURL","");
        }
        $path = $this->e107->e107_dirs['THEMES_DIRECTORY'].$theme_folder."/theme.xml";

        if(!is_readable($path))
        {
            return FALSE;
        }

    //    require_once($this->e107->e107_dirs['HANDLERS_DIRECTORY']."theme_handler.php");
    //    $tm = new themeHandler;
        $xmlArray = e107::getTheme($theme_folder, $this->debug)->get();

        return (is_array($xmlArray)) ? $xmlArray : false;
    }

    /**
     * finish_form - pass data along forms
     *
     * @param bool $force_stage [optional]
     * @return null
     */    
    function finish_form($force_stage = false)
    {
        global $e_forms;
        if($this->previous_steps)
        {
            $e_forms->add_hidden_data("previous_steps", base64_encode(serialize($this->previous_steps)));
        }
        $e_forms->add_hidden_data("stage", ($force_stage ? $force_stage : ($this->stage + 1)));

        return null;
    }

    /**
     * check_writable_perms - check writable permissions
     *
     * @param string $list [default 'must_write']
     * @return array $bad_files
     */    
    function check_writable_perms($list = 'must_write')
    {
        $bad_files = array();
        
        $system_dirs = $this->e107->e107_dirs;
        $system_dirs['MEDIA_DIRECTORY'] = str_replace("[hash]/","", $system_dirs['MEDIA_DIRECTORY']);
        $system_dirs['SYSTEM_DIRECTORY'] = str_replace("[hash]/","", $system_dirs['SYSTEM_DIRECTORY']);
        
        $data['must_write'] = 'e107_config.php|{$MEDIA_DIRECTORY}|{$SYSTEM_DIRECTORY}'; // all-sub folders are created on-the-fly
        
        $data['can_write'] = '{$PLUGINS_DIRECTORY}|{$THEMES_DIRECTORY}|{$WEB_DIRECTORY}cache|{$WEB_DIRECTORY}lib';
        if (!isset($data[$list]))
        {
            return $bad_files;
        }

        $find = array();
        $replace = array();

        foreach ($system_dirs as $dir_name => $value)
        {
            $find[] = "{\${$dir_name}}";
            $replace[] = "./$value";
        }
        $data[$list] = str_replace($find, $replace, $data[$list]);
        $files = explode("|", trim($data[$list]));
        foreach ($files as $file)
        {
            if(!is_writable($file))
            {
                $bad_files[] = str_replace("./", "", $file);
            }
        }
        return $bad_files;
    }

    /**
     * Create Core MySQL tables
     *
     * @return string|FALSE error code or FALSE if no errors are detected
     */
    public function create_tables()
    {
    //    $link = mysql_connect($this->previous_steps['mysql']['server'], $this->previous_steps['mysql']['user'], $this->previous_steps['mysql']['password']);



        $sql = e107::getDb();

        installLog::add("Starting Table Creation");

        $link = $sql->connect($this->previous_steps['mysql']['server'], $this->previous_steps['mysql']['user'], $this->previous_steps['mysql']['password']);

        if(!$link)
        {
            return nl2br(LANINS_084."\n\n<b>".LANINS_083."\n</b><i>".$sql->getLastErrorText()."</i>");
        }

        installLog::add("DB Connection made");

    //    $dbLink = $link;        // Needed for mysql_close() to work round bug in PHP 5.3
    //    $db_selected = mysql_select_db($this->previous_steps['mysql']['db'], $link);
        $db_selected = $sql->database($this->previous_steps['mysql']['db'],$this->previous_steps['mysql']['prefix']);
        if(!$db_selected)
        {
            return nl2br(LANINS_085." '{$this->previous_steps['mysql']['db']}'\n\n<b>".LANINS_083."\n</b><i>".e107::getDb()->getLastErrorText()."</i>");
        }

        installLog::add("DB Database Selected");

        $filename = "{$this->e107->e107_dirs['CORE_DIRECTORY']}sql/core_sql.php";
        $fd = fopen ($filename, "r");
        $sql_data = fread($fd, filesize($filename));
        $sql_data = preg_replace("#\/\*.*?\*\/#mis", '', $sql_data);        // Strip comments
        fclose ($fd);

        if (!$sql_data)
        {
            return nl2br(LANINS_060)."<br /><br />";
        }

        preg_match_all("/create(.*?)(?:myisam|innodb);/si", $sql_data, $result );

        // Force UTF-8 again
        $this->dbqry('SET NAMES `utf8mb4`');

        $srch = array("CREATE TABLE","(");
        $repl = array("DROP TABLE IF EXISTS","");

        foreach ($result[0] as $sql_table)
        {
            $sql_table = preg_replace("/create table\s/si", "CREATE TABLE {$this->previous_steps['mysql']['prefix']}", $sql_table);

            // Drop existing tables before creating.
            $tmp = explode("\n",$sql_table);
            $drop_table = str_replace($srch,$repl,$tmp[0]);
            $this->dbqry($drop_table);

            if (!$this->dbqry($sql_table))
            {
                installLog::add("Query Failed in ".$filename." : ".$sql_table, 'error');
                return nl2br(LANINS_061."\n\n<b>".LANINS_083."\n</b><i>".e107::getDb()->getLastErrorText()."</i>");
            }
        }

        return FALSE;

    }

    function write_config($data)
    {
        $e107_config = 'e107_config.php';
        $fp = @fopen($e107_config, 'w');
        if (!@fwrite($fp, $data))
        {
            @fclose ($fp);
            return nl2br(LANINS_070);
        }
        @fclose ($fp);
        @chmod($e107_config,0644); // correct permissions. 
        return false;
    }




    private function setDb()
    {
        $sqlInfo = array(
                'mySQLserver'       => $this->previous_steps['mysql']['server'],
                'mySQLuser'         => $this->previous_steps['mysql']['user'],
                'mySQLpassword'     => $this->previous_steps['mysql']['password'],
                'mySQLdefaultdb'    => $this->previous_steps['mysql']['db'],
                'mySQLprefix'       => $this->previous_steps['mysql']['prefix']
        );

        $this->e107->initInstallSql($sqlInfo);
    }


    private function dbqry($qry)
    {
        $sql = e107::getDb();
        $return =  $sql->db_Query($qry);

        if($return === false)
        {
            installLog::add('Query Failed: '.$qry, 'error');
        }

        return $return;

        /*if($error = $sql->getLastErrorNumber())
        {
            $errorInfo = 'Query Error [#'.$error.']: '.$sql->getLastErrorText()."\nQuery: {$qry}";
            $this->debug_db_info['db_error_log'][] = $errorInfo;
            return false;
        }

        return true;*/
    }
}

class e_forms 
{
    public  $form;
    private $opened;

    function start_form($id, $action, $method = "post" )
    {
        $this->form = "\n<form method='{$method}' id='{$id}' action='{$action}'>\n";
        $this->opened = true;
    }

    function add_select_item($id, $labels, $selected)
    {
        $this->form .= "
        <select class='form-control input-large' name='{$id}' id='{$id}'>\n";
        foreach ($labels as $label)
        {
            $this->form .= "<option value='".$label."' ".($label == $selected ? " selected='selected'" : "").">{$label}</option>\n";
        }
        $this->form .= "</select>\n";
    }
    


    function add_hidden_data($id, $data)
    {
        $this->form .= "<input type='hidden' name='{$id}' value='{$data}' />\n";
    }

    function add_plain_html($html_data)
    {
        $this->form .= $html_data;
    }

    function return_form()
    {
        if($this->opened == true)
        {
            $this->form .= "</form>\n";
        }
        $this->opened = false;
        return $this->form;
    }
}

function create_tables_unattended()
{
    //If username or password not specified, exit
    if(!isset($_GET['username']) || !isset($_GET['password']))
    {
        return false;
    }

    $mySQLserver = null;
    $mySQLuser = null;
    $mySQLpassword = null;
    $mySQLdefaultdb = null;
    $mySQLprefix = null;
    
    if(file_exists('e107_config.php'))
    {
        @include('e107_config.php');
    } else {
        return false;
    }    
    
    //If mysql info not set, config file is not created properly
    if(!isset($mySQLuser) || !isset($mySQLpassword) || !isset($mySQLdefaultdb) || !isset($mySQLprefix))
    {
        return false;
    }

    // If specified username and password does not match the ones in config, exit
    if($_GET['username'] !== $mySQLuser || $_GET['password'] !== $mySQLpassword)
    {
        return false;
    }

    $einstall = new e_install();
    $einstall->previous_steps['mysql']['server']     = $mySQLserver;
    $einstall->previous_steps['mysql']['user']        = $mySQLuser;
    $einstall->previous_steps['mysql']['password']     = $mySQLpassword;
    $einstall->previous_steps['mysql']['db']         = $mySQLdefaultdb;
    $einstall->previous_steps['mysql']['prefix']     = $mySQLprefix;

    $einstall->previous_steps['language']             = (isset($_GET['language']) ? $_GET['language'] : 'English');

    $einstall->previous_steps['admin']['display']      = (isset($_GET['admin_display']) ? $_GET['admin_display'] : 'admin');
    $einstall->previous_steps['admin']['user']      = (isset($_GET['admin_user']) ? $_GET['admin_user'] : 'admin');
    $einstall->previous_steps['admin']['password']  = (isset($_GET['admin_password']) ? $_GET['admin_password'] : 'admin_password');
    $einstall->previous_steps['admin']['email']      = (isset($_GET['admin_email']) ? $_GET['admin_email'] : 'admin_email@xxx.com');

    $einstall->previous_steps['generate_content']     = isset($_GET['gen']) ? (int) $_GET['gen'] : 1;
    $einstall->previous_steps['install_plugins']     = isset($_GET['plugins']) ? (int) $_GET['plugins'] : 1;
    $einstall->previous_steps['prefs']['sitename']     = isset($_GET['sitename']) ? urldecode($_GET['sitename']) : LANINS_113;
    $einstall->previous_steps['prefs']['sitetheme'] = isset($_GET['theme']) ? urldecode($_GET['theme']) : 'bootstrap3';

    //@include_once("./{$HANDLERS_DIRECTORY}e107_class.php");
    //$e107_paths = compact('ADMIN_DIRECTORY', 'FILES_DIRECTORY', 'IMAGES_DIRECTORY', 'THEMES_DIRECTORY', 'PLUGINS_DIRECTORY', 'HANDLERS_DIRECTORY', 'LANGUAGES_DIRECTORY', 'HELP_DIRECTORY', 'CACHE_DIRECTORY', 'DOWNLOADS_DIRECTORY', 'UPLOADS_DIRECTORY');
    //$e107 = e107::getInstance();
    //$e107->init($e107_paths, realpath(dirname(__FILE__)));

    //$einstall->e107 = &$e107;

    //FIXME - does not appear to work for import_configuration. ie. tables are blank except for user table.

    $einstall->create_tables();
    $einstall->import_configuration();
    return true;
}

class SimpleTemplate
{
    private $Tags = array();
    private $open_tag = "{";
    private $close_tag = "}";

    function __construct()
    {
        define("TEMPLATE_TYPE_FILE", 0);
        define("TEMPLATE_TYPE_DATA", 1);
    }

    function SetTag($TagName, $Data)
    {
        $this->Tags[$TagName] = array(    'Tag'  => $TagName,
        'Data' => $Data
        );
    }
/*
    function RemoveTag($TagName)
    {
        unset($this->Tags[$TagName]);
    }

    function ClearTags()
    {
        $this->Tags = array();
    }*/

    function ParseTemplate($Template, $template_type = TEMPLATE_TYPE_FILE)
    {
        if($template_type == TEMPLATE_TYPE_DATA)
        {
            $TemplateData = $Template;
        }
        else
        {
            $TemplateData = file_get_contents($Template);
        }
        foreach ($this->Tags as $Tag)
        {
            $TemplateData = str_replace($this->open_tag.$Tag['Tag'].$this->close_tag, $Tag['Data'], $TemplateData);
        }

        return $TemplateData;
    }
}

function template_data()
{

    return '<!DOCTYPE html>
    <html lang="en">
      <head>
        <meta charset="utf-8">
        <title>{installation_heading} :: {stage_pre}{stage_num} - {stage_title}</title>
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <link href="'.e_THEME.'bootstrap3/css/bootstrap-dark.min.css" rel="stylesheet">
        <link href="'.e_THEME.'bootstrap3/admin_style.css" rel="stylesheet">
        <link rel="icon" href="favicon.ico" type="image/x-icon" />
        <style>
        
        body                     {  padding-top: 40px; padding-bottom: 40px; background-color: #181818; }
        .container-narrow         { margin: 0 auto; max-width: 800px; }
        .container-narrow > hr     { margin: 30px 0; }
        .nav                     { margin-top:35px; }
        .buttons-bar             { margin: 20px 30px 10px 0px }
        .tooltip-inner             { font-size:110%; }
        div.masthead             { margin-bottom:30px }
        h4                        { margin-left:10px; margin-bottom:20px; color:#181818; }
        #version                { position:relative; left:50px; top:-20px; }
        .well                    { border-radius: 12px }

        .theme-cell             { margin-bottom:15px; padding-left:0; padding-right:5px }
        .theme-cell .thumbnail  { margin-bottom:5px; height:170px; width:auto }
        .theme-cell h5          { padding-left:8px; margin-top:0; font-weight:bold }

        label.theme-selection > input { visibility: hidden;  position: absolute;     }
        label.theme-selection > input + div{  cursor:pointer;  border:2px solid transparent; border-radius:6px }
        label.theme-selection > input:checked + div {    border:2px solid #337ab7;     }
        label.theme-selection > input + div span { visibility: hidden; float:right; margin-right:10px; color:#337ab7    }
        label.theme-selection > input:checked + div span { visibility: initial;    }
        div.tooltip { width:320px }



        </style>
        <!-- HTML5 shim, for IE6-8 support of HTML5 elements -->
        <!--[if lt IE 9]>
          <script src="https://cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.3/html5shiv.js"></script>
        <![endif]-->
      </head>
      <body>

        <div class="container-narrow">

          <div class="masthead">
            <ul class="nav nav-pills pull-right" >
              <li style="width:200px;text-align:center" ><a href="#" >'.LANINS_134.' &#58  {stage_pre} {stage_num} '.LANINS_135.' 8</a>
              <div class="progress progress-{bartype}">
                <div class="progress-bar bar" style="width: {percent}%"></div>
            </div>
            </li>
             </ul>
            <h3 class="muted">
            <img src="'.e_IMAGE.'admin_images/credits_logo.png" alt="e107" />
            </h3>
            
          </div>

            <div class="panel panel-default">
                      <div class="panel-heading">
                        <h3 class="panel-title">{stage_title}</h3>
                      </div>
                      <div class="panel-body">
                        {stage_content}
                      </div>
                    </div>



          <div class="footer">
            <p class="pull-left">&copy; e107 Inc. '.date("Y").'</p>
            <p class="pull-right">'.LAN_VERSION.' &#58 '.e_VERSION.'</p>
          </div>
         <div>{debug_info}</div>
        </div> <!-- /container -->

        <!-- The javascript
        ================================================== -->
        <!-- Placed at the end of the document so the pages load faster -->
        <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
        <script src="https://netdna.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>

        <script>
        
        $(document).ready(function()
        {
        
            $(".e-tip,input,textarea,select,label").each(function(c) {
                        
                var t = $(this).nextAll(".field-help");
                t.hide();
        
                $(this).tooltip({
                    title: function() {
                        var tip = t.html();
                        return tip;
                    },
                    fade: true,
                    html: true,
                    placement: "right",
                    delay: { show: 200, hide: 200 }
                });
            });

            // disable validation for back-button.
            $(".no-validate").click(function () {
                $("form").attr( "novalidate",true );
            });
        
        });
        
        </script>
        
      </body>
    </html>
    ';

}

/**
* Render a Fatal error and halt installation.
*
* @param $error
*/
function die_fatal_error($error)
{

    define("e_IMAGE","e107_images/");
    define("e_JS","e107_web/js/");
    define("e_THEME", "e107_themes/");
    define("e_LANGUAGEDIR", "e107_languages/");
    
    include(e_LANGUAGEDIR."English/English.php");
    include(e_LANGUAGEDIR."English/lan_installer.php");
    
    $var = array();
    $var["installation_heading"]     = LANINS_001;
    $var["stage_pre"]                 = LANINS_002;
    $var["stage_num"]                 =  LANINS_003;
    $var["stage_title"]             = LAN_ERROR;
    $var["percent"]                 = 10;
    $var["bartype"]                 = 'danger';
    $var['stage_content']            = "<div class='alert alert-error alert-block'>".$error."</div>";
    $var['debug_info']                 = '';
    
    $template = template_data();
    
    foreach($var as $k=>$val)
    {
        $template = str_replace("{".$k."}", $val, $template);    
        
    }
    echo $template;
    exit;        
}