<?php
require_once('env-parser.php');
require_once('file-util.php');

function admin_password_crypt($value)
{
    return md5($value);
}

function get_localized_schema_files()
{
    $schema_files = array('schema.sql' => 'main');
    $schema_files['admin_user.sql'] = 'main';

    //Set schema_version
    $schema_files['schema_schema_version.sql'] = 'main';

    $sample_data = fetch_env_var('SETTINGS_sample_data');
    if(strlen($sample_data) > 0 && $sample_data == 'no')
    {
        return $schema_files;
    }

    $locale = fetch_env_var('SETTINGS_locale');
    $fname = "${locale}_data.sql";
    if(!@file_exists($fname))
    {
        $fname = 'en-GB_data.sql';
    }
    $schema_files[$fname] = 'main';

    return $schema_files;
}

function rebuild_config_file($old_config_file, $file_source, $file_dest, $meta_settings)
{
    $file_content = read_file($file_source);

    require_once $old_config_file;
    $old_conf = new JConfig();

    foreach(get_object_vars($old_conf) as $key => $value)
    {
        foreach($meta_settings as $field)
        {
            if($key == $field)
            {
                continue 2;
            }
        }

        $file_content = preg_replace('@public \$'.$key.' = \'.*\';@i', "public \$".$key." = '".php_quote($value)."';", $file_content);
    }
    write_file($file_dest, $file_content);
}

function get_additional_modify_hash()
{
    $parameters = array();
    $parameters['@@SECRET_KEY@@'] = genRandomPassword(16);

    return $parameters;
}

function genRandomPassword($length = 8)
{
    $salt = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
    $len = strlen($salt);
    $makepass = '';
    mt_srand(10000000 * (double)microtime());

    for($i = 0; $i < $length; $i++)
    {
        $makepass .= $salt[mt_rand(0, $len - 1)];
    }

    return $makepass;
}

function install_extra_component($root_dir, $locale)
{
    // install localization and components only in not migration mode

    if(version_compare(PHP_VERSION, '5.3.1', '<'))
    {
        //problem on Plesk ignoring php version requirement
        return;
    }

    install_component($locale.'_joomla_lang_full.zip', $root_dir);
    install_component('com_akeeba.zip', $root_dir);
    install_component('plugin_googlemap.zip', $root_dir);
    install_component('pkg_xmap.zip', $root_dir);

    //install_component('com_extplorer.zip', $root_dir);
    //install_component('plg_autologin.zip', $root_dir);
    //Enable plg_autologin by default
    //enable_plg_autologin();

    // Run the core functionality to set the default language
    JLoad::loadFramework($root_dir);
    JSetDefaultLanguage::setLanguage($locale);
}

function activateDefaultLanguage()
{
    // Not needed yet
}

function enable_plg_autologin()
{
    $db_id = "main";
    mysql_db_connect(get_db_address($db_id), get_db_login($db_id), get_db_password($db_id), get_db_name($db_id));

    $result = mysql_query("UPDATE `".get_db_prefix($db_id)."jos_extensions` SET `enabled`=1, `params`='{\"urlredirect\":\"\",\"authmethod\":\"0\"}' WHERE `name`='System - Autologin' AND `type`='plugin' AND `element`='autologin';");
}

function install_component($zip_file, $root_dir)
{
    if(version_compare(PHP_VERSION, '5.3.1', '<'))
    {
        //problem on Plesk ignoring php version requirement
        return;
    }

    defined('APS_EXTENSION_INSTALL') || define('APS_EXTENSION_INSTALL', 'on');
    $script_dir = getcwd();
    chdir($root_dir);
    ob_start();
    require_once($root_dir."/cli/install_package_cli.php");
    $joomlaExtensionFromAPS = new InstallJoomlaExtensionFromAPS();
    $joomlaExtensionFromAPS->install($root_dir."/tmp/distributives/${zip_file}");

    if(ob_get_length() > 0)
    {
        ob_end_clean();
    }

    chdir($script_dir);
}

/************************************************************************/
/* 						Get Joomla Admin User Id						*/
/* 		Old Joomla APS Admin User Id is diferent (like Joomla 2.5.1)	*/
/************************************************************************/
function getJoomlaAdminUserId()
{
    $joomlaAdminUserId = 62;
    $db_id = "main";
    mysql_db_connect(get_db_address($db_id), get_db_login($db_id), get_db_password($db_id), get_db_name($db_id));

    $result = mysql_query("SELECT `id` FROM `".get_db_prefix($db_id)."jos_users` LIMIT 1");
    if($result)
    {
        $joomlaAdminUserId = mysql_result($result, 0);
    }

    return $joomlaAdminUserId;
}

/************************************************************************/
/* 					Delete Old Joomla Files (Plesk bug)					*/
/************************************************************************/
function deleteOldJoomlaFiles($root_dir)
{
    $old_filelist = 'old_joomla_files.files';
    if(file_exists($old_filelist))
    {
        $lines = file($old_filelist);
        foreach($lines as $lnum => $fpath)
        {
            $fpath = rtrim($fpath, "\r\n");
            if(file_exists($root_dir."/".$fpath))
            {
                @unlink($root_dir."/".$fpath);
            }
        }
    }
}

/* 
/* removing 1.7.x.sql files to avoid error message in Extensions -> Database
/* If these files present, there is 2 messages of kind "Table 'jos_content' does not have column 'title_alias' with type 'VARCHAR(255)'. (From file 1.7.3-2011-10-15.sql.)"
*/
function removeJoomla17UpgradeScripts($root_dir)
{
    $mysql_updates_dir = "$root_dir/administrator/components/com_admin/sql/updates/mysql/";
    if($handle = @opendir($mysql_updates_dir))
    {
        while(strlen($file = readdir($handle)))
        {
            if(preg_match("/^1\.7\..*\.sql$/", $file))
            {
                @unlink($mysql_updates_dir.$file);
            }
        }
    }
    @closedir($handle);
}

function get_table_prefix($db_modify_hash, $psa_modify_hash)
{
    $dbprefix = $db_modify_hash['@@DB_MAIN_PREFIX@@'].'jos_'; // this is our default prefix. Get the one from configuration.php just in case
    $config_content = read_file($psa_modify_hash['@@ROOT_DIR@@'].'/configuration.php');
    if(preg_match('#public \$dbprefix *= *[\'\"]([^\'\"]*)[\'\"]#m', $config_content, $mres))
    {
        $dbprefix = $mres[1];
    }

    return $dbprefix;
}

function clean_up_installation($folder, $create_empty_folder = false, $create_empty_index_html = false, $delete_folder = true, $not_remove = array())
{
    if(substr($folder, -1) != '/')
    {
        $folder .= '/';
    }

    if(file_exists($folder))
    {
        if($handle = @opendir($folder))
        {
            while(strlen($file = readdir($handle)))
            {
                if($file != '.' && $file != '..' && !in_array($file, $not_remove))
                {
                    set_write_permissions($folder.$file);

                    if(is_dir($folder.$file))
                    {
                        if(!@rmdir($folder.$file))
                        {
                            clean_up_installation($folder.$file.'/');
                        }
                    }
                    else
                    {
                        @unlink($folder.$file);
                    }
                }
            }
        }

        @closedir($handle);

        if($delete_folder)
        {
            set_write_permissions($folder);
            @rmdir($folder);
        }

        if($create_empty_folder AND !file_exists($folder))
        {
            if($create_empty_folder)
            {
                mkdir($folder);
            }
        }

        if($create_empty_index_html)
        {
            file_put_contents($folder."/index.html", '');
        }
    }
}

function createHtaccessFile($base_path, $root_dir)
{
    if(empty($base_path))
    {
        $base_path = '/';
    }

    $file_content = read_file('htaccess.txt');
    $file_content = str_replace('###BASE_PATH###', $base_path, $file_content);
    write_file($root_dir, $file_content);
}