class.ilSetupGUI.php

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<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */

require_once "./setup/classes/class.ilSetup.php";
require_once('./Services/Database/classes/class.ilDBConstants.php');

class ilSetupGUI
{
        var $tpl;       // template object
        var $lng;       // language objet
        var $log;       // log object

        var $btn_prev_on = false;   // toggle previous button on/off
        var $btn_prev_cmd;          // command processed when previous button was clicked
        var $btn_prev_lng;          // previous button label

        var $btn_next_on = false;   // toggle NEXT button on/off
        var $btn_next_cmd;          // command processed when next button was clicked
        var $btn_next_lng;          // next button label

        var $revision;              // cvs revision of this script
        var $version;               // cvs version of this script
        var $lang;                  // current language (lang_key)

        var $cmd;                       // command variable
        var $display_mode = "view";     // view mode (setup or details)

        function __construct()
        {
                global $tpl, $lng;

                $this->tpl = $tpl;
                $this->lng = $lng;

                // note: this is currently only used for subtabs, alex 8.1.2012
                include_once("./Services/UIComponent/Tabs/classes/class.ilTabsGUI.php");
                $this->tabs = new ilTabsGUI();
                $this->tabs->setSetupMode(true);

                include_once("./Services/jQuery/classes/class.iljQueryUtil.php");
                iljQueryUtil::initjQuery($this->tpl);
                include_once("./Services/YUI/classes/class.ilYuiUtil.php");
                ilYuiUtil::initDomEvent();

                $tpl->addJavaScript("./Services/JavaScript/js/Basic.js", 0);

                include_once("./Services/UICore/classes/class.ilUIFramework.php");
                ilUIFramework::init($this->tpl);

                // CVS - REVISION - DO NOT MODIFY
                $this->revision = '$Revision$';
                $this->version = "2 ".substr(substr($this->revision,1),0,-2);
                $this->lang = $this->lng->lang_key;

                // init setup
                $this->setup = new ilSetup($_SESSION["auth"],$_SESSION["access_mode"]);

                // init client object if exists
                $client_id = ($_GET["client_id"]) ? $_GET["client_id"] : $_SESSION["ClientId"];
                if ($_POST["client_id"] != "")
                {
                        $client_id = $_POST["client_id"];
                }

/*if ($_POST["client_id"] == "")
{
echo "<br>+".$_GET["client_id"];
echo "<br>+".$_POST["client_id"];
echo "<br>+".$_SESSION["ClientId"];
echo "<br>+".$client_id;
}*/
                // for security
                if (!$this->setup->isAdmin() and $client_id != $_SESSION["ClientId"])
                {
                        $client_id = $_SESSION["ClientId"];
                }

                $this->client_id = $client_id;

                $this->setup->ini_client_exists = $this->setup->newClient($client_id);
                if (is_object($this->setup->getClient()))
                {
                        $this->setup->getClient()->status = $this->setup->getStatus($client_id);
                }

                // determine command
                if (($this->cmd = $_GET["cmd"]) == "gateway")
                {
                        // surpress warning if POST is not set
                        @$this->cmd = key($_POST["cmd"]);
                }

                // determine display mode here
                // TODO: depending on previous setting (session)
                // OR switch to 'setup'-mode if someone logs in as client and client's setup wasn't finished (-> entry in settings table does not exist)
                if ($this->setup->isAuthenticated() and !$this->setup->getClient()->status["finish"]["status"] and $this->cmd != "clientlist" and $this->cmd != "")
                {
                        $this->setDisplayMode("setup");
                }
                else
                {
                        $this->setDisplayMode($_SESSION["display_mode"]);
                }

                // output starts here


                // main cmd handling
                if (!$this->setup->isAuthenticated() or !$this->setup->isInstalled())
                {
                        // check for first time installation or migrate an old one first
                        if (!$this->setup->isInstalled() or !($this->setup->ini->readVariable("clients","path")))
                        {
                                $this->cmdInstall();
                        }
                        else
                        {
                                if ($this->cmd == "performLogin" || $this->cmd == "performMLogin")
                                {
                                        $cmd = $this->cmd;
                                        $this->$cmd();
                                }
                                else
                                {
                                        $this->displayLogin();
                                }
                        }
                }
                else
                {
                        if ($this->setup->isAdmin())
                        {
                                $this->cmdAdmin();
                        }
                        else
                        {
                                $this->cmdClient();
                        }
                }

                // display header
                $this->displayHeader();

                if (DEBUG)
                {
                        echo "cmd: ".$this->cmd." | access: ".$this->setup->access_mode." | display: ".$this->display_mode;
                        var_dump($this->setup->getClient()->status);
                }

                // display footer
                $this->displayFooter();

                // end output

        }  // end constructor

        // cmd subsets

        function cmdInstall()
        {
                $cmd = $this->cmd;
                switch ($this->cmd)
                {
                        case NULL:
                        case "preliminaries":
                                $this->setup->checkPreliminaries();
                                $this->displayPreliminaries();
                                break;

                        case "install":
                                $this->displayMasterSetup();
                                break;

                        case "determineToolsPathInstall":
                                $this->determineToolsPathInstall();
                                break;

                        case "saveBasicSettings":
                                $this->$cmd();
                                break;

                        default:
                                $this->displayError($this->lng->txt("unknown_command").": '".$this->cmd."'");
                                break;
                }
        }

        function cmdAdmin()
        {
                $cmd = $this->cmd;
                switch ($this->cmd)
                {
                        case NULL:
                        case "clientlist":
                                
                                $this->setDisplayMode("view");
                                $this->displayClientList();
                                $this->active_tab = "clientlist";
                                break;

                        case "savemasterpassword":
                                $this->setDisplayMode("view");
                                $this->saveMasterPassword();
                                $this->active_tab = "password";
                                break;

                        case "changemasterpassword":
                                $this->setDisplayMode("view");
                                $this->changeMasterPassword();
                                $this->active_tab = "password";
                                break;

                        case "mastersettings":
                                $this->setDisplayMode("view");
                                $this->changeMasterSettings();
                                $this->active_tab = "basicsettings";
                                break;

                        case "determineToolsPath":
                                $this->setDisplayMode("view");
                                $this->determineToolsPath();
                                break;

                        case "changedefault":
                                $this->changeDefaultClient();
                                break;

                        case "newclient":
                                $this->cmd = "selectdb";
                                $this->setDisplayMode("setup");
                                $this->setup->ini_client_exists = $this->setup->newClient();
                                $this->selectDBType();
                                break;

                        case "selectdbtype":
                        case "displayIni":
                                $this->cmd = "ini";
                                $this->setDisplayMode("setup");
                                //$this->setup->ini_client_exists = $this->setup->newClient($this->client_id);
                                $this->displayIni();
                                break;

                        case "startup":
                                $this->setDisplayMode("setup");
                                $this->setup->ini_client_exists = $this->setup->newClient();
                                $this->displayStartup();
                                break;

                        case "delete":
                                $this->setDisplayMode("view");
                                $this->displayDeleteConfirmation();
                                break;

                        case "togglelist":
                                $this->setDisplayMode("view");
                                $this->toggleClientList();
                                break;

                        case "preliminaries":
                                $this->setup->checkPreliminaries();
                                $this->displayPreliminaries();
                                $this->active_tab = "preliminaries";
                                break;

                        case "updateBasicSettings":
                        case "performLogin":
                        case "performMLogin":
                                $this->$cmd();
                                break;

                        default:
                                $this->cmdClient();
                                break;
                }
        }

        function cmdClient()
        {
                $cmd = $this->cmd;
                switch ($this->cmd)
                {
                        case NULL:
                        case "view":
                                if ($this->setup->getClient()->db_installed)
                                {
                                        $this->setDisplayMode("view");
                                        $this->displayClientOverview();
                                }
                                else
                                {
                                        $this->cmd = "db";
                                        $this->displayDatabase();
                                }
                                break;

                        case "ini":
                                // only allow access to ini if db does not exist yet
                                //if ($this->setup->getClient()->db_installed)
                                //{
                                //      $this->cmd = "db";
                                //      $this->displayDatabase();
                                //}
                                //else
                                //{
                                        $this->displayIni();
                                //}
                                break;

                        case "db":
                                $this->displayDatabase();
                                break;

                        case "dbslave":
                                $this->displayDatabaseSlave();
                                break;

                        case "sess":
                                if (!isset($_GET["lang"]) and !$this->setup->getClient()->status["finish"]["status"] and $_GET["cmd"] == "sess" and $this->setup->error === true)
                                {
                                        $this->jumpToFirstUnfinishedSetupStep();
                                }
                                else
                                {
                                        $this->displaySessions();
                                }
                                break;

                        case "lang":
                                if (!isset($_GET["lang"]) and !$this->setup->getClient()->status["finish"]["status"] and $_GET["cmd"] == "lang" and $this->setup->error === true)
                                {
                                        $this->jumpToFirstUnfinishedSetupStep();
                                }
                                else
                                {
                                        $this->displayLanguages();
                                }
                                break;

                        case "contact":
                                if (!isset($_GET["lang"]) and !$this->setup->getClient()->status["finish"]["status"] and $_GET["cmd"] == "contact")
                                {
                                        $this->jumpToFirstUnfinishedSetupStep();
                                }
                                else
                                {
                                        $this->displayContactData();
                                }
                                break;

                        case "proxy":
                                if (!isset($_GET["lang"]) and !$this->setup->getClient()->status["finish"]["status"] and $_GET["cmd"] == "proxy")
                                {
                                        $this->jumpToFirstUnfinishedSetupStep();
                                }
                                else
                                {
                                        $this->displayProxy();
                                }
                                break;

                        case "cache":
                                $this->displayCache();
                                break;


                        case "nic":
                                if (!isset($_GET["lang"]) and !$this->setup->getClient()->status["finish"]["status"] and $_GET["cmd"] == "nic")
                                {
                                        $this->jumpToFirstUnfinishedSetupStep();
                                }
                                else
                                {
                                        $this->displayNIC();
                                }
                                break;

                        case "finish":
                                if (!isset($_GET["lang"]) and !$this->setup->getClient()->status["finish"]["status"] and $_GET["cmd"] == "finish")
                                {
                                        $this->jumpToFirstUnfinishedSetupStep();
                                }
                                else
                                {
                                        $this->displayFinishSetup();
                                }
                                break;

                        case "changeaccess":
                                $this->changeAccessMode($_GET["back"]);
                                break;

                        case "logout":
                                $this->displayLogout();
                                break;

                        case "login":
                                session_destroy();
                                ilUtil::redirect(ILIAS_HTTP_PATH."/login.php?client_id=".$this->setup->getClient()->getId());
                                break;

                        case "login_new":
                                if ($this->setup->getClient()->ini->readVariable("client","access") != "1")
                                {
                                        $this->setup->getClient()->ini->setVariable("client","access","1");
                                        $this->setup->getClient()->ini->write();
                                }

                                session_destroy();
                                ilUtil::redirect(ILIAS_HTTP_PATH."/login.php?client_id=".$this->setup->getClient()->getId());
                                break;

                        case "tools":
                                $this->displayTools();
                                break;

                        case "reloadStructure":
                                $this->reloadControlStructure();
                                break;

                        case 'switchTree':
                                $this->switchTree();
                                break;

                        case "saveClientIni":
                        case "installDatabase":
                        case "displayDatabase":
                        case "updateDatabase":
                        case "showUpdateSteps":
                        case "saveLanguages":
                        case "saveContact":
                        case "displayContactData":
                        case "displayNIC":
                        case "saveRegistration":
                        case "applyHotfix":
                        case "showHotfixSteps":
                        case "applyCustomUpdates":
                        case "changeSettingsType":
                        case "showLongerSettings":
                        case "cloneSelectSource":
                        case "cloneSaveSource":
                        case "saveProxy":
                        case "displayPassword":
                        case "savePassword":
                        case "saveDbSlave":
                        case "saveCache":
                        case "addMemcacheServer":
                        case "deleteMemcacheServer":
                        case "editMemcacheServer":
                        case "createMemcacheServer":
                        case "updateMemcacheServer":
                        case "flushCache":
                                $this->$cmd();
                                break;

                        default:
                                $this->setDisplayMode("setup");
                                $this->displayError($this->lng->txt("unknown_command").": '".$this->cmd."'");
                                break;
                }
        }

        // end cmd subsets 


        function setDisplayMode($a_mode)
        {
                // security
                if ($a_mode != "view" and $a_mode != "setup")
                {
                        return false;
                }

                $this->display_mode = $a_mode;
                $_SESSION["display_mode"] = $this->display_mode;

                return true;
        }

        function displayHeader()
        {
                $languages = $this->lng->getLanguages();

                $count = (int) round(count($languages) / 2);
                $num = 1;
                
                sort($languages); // #16837
                foreach ($languages as $lang_key)
                {
                        /*
                        if ($num === $count)
                        {
                                $this->tpl->touchBlock("lng_new_row");
                        }
                        */
                        $this->tpl->setCurrentBlock("languages");
                        $this->tpl->setVariable("LINK_LANG", "./setup.php?cmd=".$this->cmd."&amp;lang=".$lang_key);
                        $this->tpl->setVariable("LANG_NAME", $this->lng->txt("meta_l_".$lang_key));
                        $this->tpl->setVariable("LANG_ICON", $lang_key);
                        $this->tpl->setVariable("LANG_KEY", $lang_key);
                        $this->tpl->setVariable("BORDER", 0);
                        $this->tpl->setVariable("VSPACE", 0);
                        $this->tpl->parseCurrentBlock();

                        $num++;
                }

                if ($this->cmd != "logout" and $this->setup->isInstalled() and $this->setup->isAuthenticated())
                {
                        // add client link
                        if ($this->setup->isAdmin())
                        {
                                if ($this->display_mode == "view" ||
                                        $this->cmd == "clientlist" ||
                                        $this->cmd == "changemasterpassword" ||
                                        $this->cmd == 'savemasterpassword' ||
                                        $this->cmd == "mastersettings") {
                                        $this->tpl->setCurrentBlock("add_client");
                                        $this->tpl->setVariable("TXT_ADD_CLIENT",ucfirst($this->lng->txt("new_client")));
                                        $this->tpl->parseCurrentBlock();
                                }

                                // client list link
                                $class = ($this->active_tab == "clientlist")
                                        ? "ilSMActive"
                                        : "ilSMInactive";
                                $this->tpl->setCurrentBlock("display_list");
                                $this->tpl->setVariable("TXT_LIST",ucfirst($this->lng->txt("list_clients")));
                                $this->tpl->setVariable("TAB_CLASS", $class);
                                $this->tpl->parseCurrentBlock();

                                // edit paths link
                                $class = ($this->active_tab == "basicsettings")
                                        ? "ilSMActive"
                                        : "ilSMInactive";
                                $this->tpl->setCurrentBlock("edit_pathes");
                                $this->tpl->setVariable("TXT_EDIT_PATHES",$this->lng->txt("basic_settings"));
                                $this->tpl->setVariable("TAB_CLASS", $class);
                                $this->tpl->parseCurrentBlock();

                                // preliminaries
                                $class = ($this->active_tab == "preliminaries")
                                        ? "ilSMActive"
                                        : "ilSMInactive";
                                $this->tpl->setCurrentBlock("preliminaries");
                                $this->tpl->setVariable("TXT_PRELIMINARIES",$this->lng->txt("preliminaries"));
                                $this->tpl->setVariable("TAB_CLASS", $class);
                                $this->tpl->parseCurrentBlock();

                                // change password link
                                $class = ($this->active_tab == "password")
                                        ? "ilSMActive"
                                        : "ilSMInactive";
                                $this->tpl->setCurrentBlock("change_password");
                                $this->tpl->setVariable("TXT_CHANGE_PASSWORD",ucfirst($this->lng->txt("password")));
                                $this->tpl->setVariable("TAB_CLASS", $class);
                                $this->tpl->parseCurrentBlock();
                        }

                        // logout link
                        if ($this->setup->isAuthenticated())
                        {
                                $this->tpl->setCurrentBlock("logout");
                                $this->tpl->setVariable("TXT_LOGOUT",$this->lng->txt("logout"));
                                $this->tpl->parseCurrentBlock();
                        }
                }

                $this->tpl->setVariable("VAL_CMD", htmlspecialchars($_GET["cmd"]));
                $this->tpl->setVariable("TXT_OK",$this->lng->txt("change"));
                $this->tpl->setVariable("TXT_CHOOSE_LANGUAGE",$this->lng->txt("choose_language"));
                $this->tpl->setVariable("PAGETITLE","Setup");
                //$this->tpl->setVariable("LOCATION_STYLESHEET","./templates/blueshadow.css");
                $this->tpl->setVariable("LOCATION_STYLESHEET","../templates/default/delos.css");
                $this->tpl->setVariable("LOCATION_CONTENT_STYLESHEET","./css/setup.css");
                $this->tpl->setVariable("TXT_ILIAS_VERSION", "ILIAS ".ILIAS_VERSION);
                $this->tpl->setVariable("TXT_SETUP",$this->lng->txt("setup"));
                $this->tpl->setVariable("VERSION", $this->version);
                $this->tpl->setVariable("TXT_VERSION", $this->lng->txt("version"));
                $this->tpl->setVariable("LANG", $this->lang);
        }

        function displayFooter()
        {
                // footer (not really)
                if ($this->cmd != "logout")
                {
                        if ($this->setup->ini_ilias_exists and $this->display_mode == "setup" and $this->setup->getClient()->getId() != "")
                        {
                                $this->tpl->setVariable("TXT_ACCESS_MODE","(".$this->lng->txt("client_id").": ".$this->setup->getClient()->getId().")");
                        }
                        elseif ($this->setup->isAdmin())
                        {
                                $this->tpl->setVariable("TXT_ACCESS_MODE","(".$this->lng->txt("root_access").")");
                        }

                        $this->displayNavButtons();
                }

                $this->tpl->show();
        }

        function displayNavButtons()
        {
                if (!$this->btn_prev_on and !$this->btn_next_on)
                {
                        return false;
                }

                $ntpl = new ilTemplate("tpl.navbuttons.html", true, true, "setup");
                //$this->tpl->addBlockFile("NAVBUTTONS","navbuttons","tpl.navbuttons.html", "setup");

                $ntpl->setVariable("FORMACTION_BUTTONS","setup.php?cmd=gateway");

                if ($this->btn_prev_on)
                {
                        $ntpl->setCurrentBlock("btn_back");
                        $ntpl->setVariable("TXT_PREV", $this->btn_prev_lng);
                        $ntpl->setVariable("CMD_PREV", $this->btn_prev_cmd);
                        $ntpl->parseCurrentBlock();
                }

                if ($this->btn_next_on)
                {
                        $ntpl->setCurrentBlock("btn_forward");
                        $ntpl->setVariable("TXT_NEXT", $this->btn_next_lng);
                        $ntpl->setVariable("CMD_NEXT", $this->btn_next_cmd);
                        $ntpl->parseCurrentBlock();
                }

                $nav_html = $ntpl->get();
                $this->tpl->setVariable("NAVBUTTONS", $nav_html);
                if (!$this->no_second_nav)
                {
                        $this->tpl->setVariable("NAVBUTTONS2", $nav_html);
                }
                return true;
        }

        function SetButtonPrev($a_cmd = 0,$a_lng = 0)
        {
                $this->btn_prev_on = true;
                $this->btn_prev_cmd = ($a_cmd) ? $a_cmd : "gateway";
                $this->btn_prev_lng = ($a_lng) ? $this->lng->txt($a_lng) : $this->lng->txt("prev");
        }

        function SetButtonNext($a_cmd,$a_lng = 0)
        {
                $this->btn_next_on = true;
                $this->btn_next_cmd = ($a_cmd) ? $a_cmd : "gateway";
                $this->btn_next_lng = ($a_lng) ? $this->lng->txt($a_lng) : $this->lng->txt("next");
        }


        function displayClientOverview()
        {
                $this->checkDisplayMode();

                // disable/enable button
                $btpl = new ilTemplate("tpl.buttons.html", true, true, "setup");
                $btpl->setCurrentBlock("btn");
                $btpl->setVariable("CMD", "changeaccess");
                $access_button = ($this->setup->getClient()->status["access"]["status"]) ? "disable" : "enable";
                $btpl->setVariable("TXT", $this->lng->txt($access_button));
                $btpl->setVariable("FORMACTION", "setup.php?cmd=gateway");
                $btpl->parseCurrentBlock();
                $this->tpl->setVariable("BUTTONS", $btpl->get());

                $this->initClientOverviewForm();
                $this->tpl->setVariable("SETUP_CONTENT", $this->form->getHTML());

                $this->displayStatusPanel();
        }

        public function initClientOverviewForm()
        {
                global $lng, $ilCtrl;

                $settings = $this->setup->getClient()->getAllSettings();

                include_once("Services/Form/classes/class.ilPropertyFormGUI.php");
                $this->form = new ilPropertyFormGUI();

                $this->form->setTitle($lng->txt("client_info"));

                // installation name
                $ne = new ilNonEditableValueGUI($lng->txt("inst_name"), "inst_name");
                $ne->setValue(($this->setup->getClient()->getName())
                        ? $this->setup->getClient()->getName()
                        : "&lt;".$this->lng->txt("no_client_name")."&gt;");
                $ne->setInfo($this->setup->getClient()->getDescription());
                $this->form->addItem($ne);

                // client id
                $ne = new ilNonEditableValueGUI($lng->txt("client_id"), "client_id");
                $ne->setValue($this->setup->getClient()->getId());
                $this->form->addItem($ne);

                // nic id
                $ne = new ilNonEditableValueGUI($lng->txt("ilias_nic_id"), "nic_id");
                $ne->setValue(($this->setup->getClient()->db_installed)
                        ? $settings["inst_id"]
                        : $txt_no_database);
                $this->form->addItem($ne);

                // database version
                $ne = new ilNonEditableValueGUI($lng->txt("db_version"), "db_vers");
                $ne->setValue(($this->setup->getClient()->db_installed)
                        ? $settings["db_version"]
                        : $txt_no_database);
                $this->form->addItem($ne);

                // access status
                $ne = new ilNonEditableValueGUI($lng->txt("access_status"), "status");
                //$access_link = "&nbsp;&nbsp;[<a href=\"setup.php?cmd=changeaccess&client_id=".$this->setup->getClient()->getId()."&back=view\">".$this->lng->txt($access_button)."</a>]";
                $access_status = ($this->setup->getClient()->status["access"]["status"]) ? "online" : "disabled";
                $ne->setValue($this->lng->txt($access_status).$access_link);
                $this->form->addItem($ne);

                // server information
                $sh = new ilFormSectionHeaderGUI();
                $sh->setTitle($this->lng->txt("server_info"));
                $this->form->addItem($sh);

                // ilias version
                $ne = new ilNonEditableValueGUI($lng->txt("ilias_version"), "il_vers");
                $ne->setValue(ILIAS_VERSION);
                $this->form->addItem($ne);

                // host
                $ne = new ilNonEditableValueGUI($lng->txt("host"), "host");
                $ne->setValue($_SERVER["SERVER_NAME"]);
                $this->form->addItem($ne);

                // ip address and port
                $ne = new ilNonEditableValueGUI($lng->txt("ip_address")." & ".
                        $lng->txt("port"));
                $ne->setValue($_SERVER["SERVER_ADDR"].":".$_SERVER["SERVER_PORT"]);
                $this->form->addItem($ne);

                // server software
                $ne = new ilNonEditableValueGUI($lng->txt("server_software"), "server_softw");
                $ne->setValue($_SERVER["SERVER_SOFTWARE"]);
                $this->form->addItem($ne);

                // http path
                $ne = new ilNonEditableValueGUI($lng->txt("http_path"), "http_path");
                $ne->setValue(ILIAS_HTTP_PATH);
                $this->form->addItem($ne);

                // absolute path
                $ne = new ilNonEditableValueGUI($lng->txt("absolute_path"), "absolute_path");
                $ne->setValue(ILIAS_ABSOLUTE_PATH);
                $this->form->addItem($ne);

                // third party tools
                $sh = new ilFormSectionHeaderGUI();
                $sh->setTitle($this->lng->txt("3rd_party_software"));
                $this->form->addItem($sh);

                $tools = array("convert", "zip", "unzip", "ghostscript", "java", "ffmpeg");

                foreach ($tools as $tool)
                {
                        // tool
                        $ne = new ilNonEditableValueGUI($lng->txt($tool."_path"), $tool."_path");
                        $p = $this->setup->ini->readVariable("tools", $tool);
                        $ne->setValue($p ? $p : $this->lng->txt("not_configured"));
                        $this->form->addItem($ne);
                }

                // latex
                $ne = new ilNonEditableValueGUI($lng->txt("url_to_latex"), "latex_url");
                $p = $this->setup->ini->readVariable("tools", "latex"); // #13109
                $ne->setValue($p ? $p : $this->lng->txt("not_configured"));
                $this->form->addItem($ne);

                // virus scanner
                $ne = new ilNonEditableValueGUI($lng->txt("virus_scanner"), "vscan");
                $ne->setValue($this->setup->ini->readVariable("tools","vscantype"));
                $this->form->addItem($ne);

                // scan command
                $ne = new ilNonEditableValueGUI($lng->txt("scan_command"), "scan");
                $p = $this->setup->ini->readVariable("tools","scancommand");
                $ne->setValue($p ? $p : $this->lng->txt("not_configured"));
                $this->form->addItem($ne);

                // clean command
                $ne = new ilNonEditableValueGUI($lng->txt("clean_command"), "clean");
                $p = $this->setup->ini->readVariable("tools","cleancommand");
                $ne->setValue($p ? $p : $this->lng->txt("not_configured"));
                $this->form->addItem($ne);

                // system styles
                $ne = new ilNonEditableValueGUI($lng->txt("enable_system_styles_management"), "enable_system_styles_management");
                $p = $this->setup->ini->readVariable("tools","enable_system_styles_management");
                $ne->setValue($p ? $this->lng->txt("enabled") : $this->lng->txt("not_enabled"));
                $this->form->addItem($ne);

                // lessc command
                $ne = new ilNonEditableValueGUI($lng->txt("lessc"), "lessc");
                $p = $this->setup->ini->readVariable("tools","lessc");
                $ne->setValue($p ? $p : $this->lng->txt("not_configured"));
                $this->form->addItem($ne);


                $this->form->setFormAction("setup.php?cmd=gateway");
        }


        function displayPreliminaries()
        {
                $OK = "<font color=\"green\"><strong>OK</strong></font>";
                $FAILED = "<strong><font color=\"red\">FAILED</font></strong>";

                $this->tpl->addBlockFile("CONTENT","content","tpl.preliminaries.html", "setup");

                $this->tpl->setVariable("TXT_SETUP_TITLE",$this->lng->txt("ilias_setup"));
                $this->tpl->setVariable("TXT_SETUP_WELCOME", $this->lng->txt("setup_welcome"));
                $this->tpl->setVariable("TXT_SETUP_INIFILE_DESC", $this->lng->txt("setup_inifile_desc"));
                $this->tpl->setVariable("TXT_SETUP_DATABASE_DESC", $this->lng->txt("setup_database_desc"));
                $this->tpl->setVariable("TXT_SETUP_LANGUAGES_DESC", $this->lng->txt("setup_languages_desc"));
                $this->tpl->setVariable("TXT_SETUP_PASSWORD_DESC", $this->lng->txt("setup_password_desc"));
                $this->tpl->setVariable("TXT_SETUP_NIC_DESC", $this->lng->txt("setup_nic_desc"));

                $server_os = php_uname();
                $server_web = $_SERVER["SERVER_SOFTWARE"];
                $environment = $this->lng->txt("env_using")." ".$server_os." <br/>".$this->lng->txt("with")." ".$server_web;

                if ((stristr($server_os,"linux") || stristr($server_os,"windows")) && stristr($server_web,"apache"))
                {
                        $env_comment = $this->lng->txt("env_ok");
                }
                else
                {
                        $env_comment = "<font color=\"red\">".$this->lng->txt("env_warning")."</font>";
                }

                $this->tpl->setVariable("TXT_ENV_TITLE", $this->lng->txt("environment"));
                $this->tpl->setVariable("TXT_ENV_INTRO", $environment);
                $this->tpl->setVariable("TXT_ENV_COMMENT", $env_comment);

                $this->tpl->setVariable("TXT_PRE_TITLE", $this->lng->txt("preliminaries"));
                $this->tpl->setVariable("TXT_PRE_INTRO", $this->lng->txt("pre_intro"));

                $preliminaries = array("php", "root", "folder_create",
                        "cookies_enabled", "dom", "xsl", "gd", "memory");
                if ($this->setup->hasOpCacheEnabled()) {
                        $preliminaries[] = 'load_comments';
                }

                foreach ($preliminaries as $preliminary)
                {
                        $this->tpl->setCurrentBlock("preliminary");
                        $this->tpl->setVariable("TXT_PRE", $this->lng->txt("pre_".$preliminary));
                        if ($this->setup->preliminaries_result[$preliminary]["status"] == true)
                        {
                                $this->tpl->setVariable("STATUS_PRE", $OK);
                        }
                        else
                        {
                                $this->tpl->setVariable("STATUS_PRE", $FAILED);
                        }
                        $this->tpl->setVariable("COMMENT_PRE", $this->setup->preliminaries_result[$preliminary]["comment"]);
                        $this->tpl->parseCurrentBlock();
                }

                // summary
                if ($this->setup->preliminaries === true)
                {
                        if ($this->setup->isInstalled())
                        {
                                $cmd = "mastersettings";
                        }
                        else
                        {
                                $cmd = "install";
                        }
                        $btn_text = ($this->cmd == "preliminaries") ? "" : "installation";
//echo "-".$this->display_mode."-";
                        $this->setButtonNext($cmd,$btn_text);
                }
                else
                {
                        $this->tpl->setCurrentBlock("premessage");
                        $this->tpl->setVariable("TXT_PRE_ERR", sprintf($this->lng->txt("pre_error"),
                                "http://www.ilias.de/docu/goto.php?target=pg_6531_367&client_id=docu"));
                        $this->tpl->parseCurrentBlock();
                }
        }


        function displayMasterSetup($a_omit_init = false)
        {
                $this->tpl->addBlockFile("CONTENT","content","tpl.std_layout.html", "setup");
                $this->tpl->setVariable("TXT_HEADER", $this->lng->txt("basic_settings"));
                $this->tpl->setVariable("TXT_INFO",
                        $this->lng->txt("info_text_first_install")."<br/>".$this->lng->txt("info_text_pathes"));

                $this->setButtonPrev("preliminaries");

                if ($this->setup->isInstalled())
                {
                        $this->setButtonNext("list");
                }

                if (!$a_omit_init)
                {
                        $this->initBasicSettingsForm(true);
                }
                $this->tpl->setVariable("SETUP_CONTENT", "<br>".$this->form->getHTML()."<br>");
        }

        function changeMasterSettings($a_omit_init = false)
        {
                $this->tpl->addBlockFile("CONTENT","content","tpl.std_layout.html", "setup");
                $this->tpl->setVariable("TXT_HEADER", $this->lng->txt("basic_settings"));
                $this->tpl->setVariable("TXT_INFO", $this->lng->txt("info_text_pathes"));

                $this->btn_next_on = true;
                $this->btn_next_lng = $this->lng->txt("create_new_client")."...";
                $this->btn_next_cmd = "newclient";

                if (!$a_omit_init)
                {
                        $this->initBasicSettingsForm();
                        $this->getBasicSettingsValues();
                }
                $this->tpl->setVariable("SETUP_CONTENT", "<br>".$this->form->getHTML()."<br>");
        }

        public function initBasicSettingsForm($a_install = false)
        {
                global $lng, $ilCtrl;

                include_once("Services/Form/classes/class.ilPropertyFormGUI.php");
                $this->form = new ilPropertyFormGUI();

                // webspace dir 
                $ne = new ilNonEditableValueGUI($lng->txt("data_directory_in_ws"), "webspace_dir");
                if ($a_install)
                {
                        $ne->setInfo($this->lng->txt("data_directory_in_ws_info"));
                }
                $cwd = ilUtil::isWindows()
                        ? str_replace("\\", "/", getcwd())
                        : getcwd();

                $ne->setValue($cwd."/data");
                $this->form->addItem($ne);

                // data dir
                if ($a_install)
                {
                        $ti = new ilTextInputGUI($lng->txt("data_directory_outside_ws"), "datadir_path");
                        $ti->setInfo($lng->txt("data_directory_info"));
                        $ti->setRequired(true);
                        $this->form->addItem($ti);
                }
                else
                {
                        $ne = new ilNonEditableValueGUI($lng->txt("data_directory_outside_ws"), "data_dir");
                        $this->form->addItem($ne);
                }

                $lvext = (ilUtil::isWindows())
                        ? "_win"
                        : "";


                // logging
                $sh = new ilFormSectionHeaderGUI();
                $sh->setTitle($lng->txt("logging"));
                $this->form->addItem($sh);

                // path to log file
                $ti = new ilTextInputGUI($lng->txt("log_path"), "log_path");
                $ti->setInfo($lng->txt("log_path_comment".$lvext));
                $this->form->addItem($ti);

                // disable logging 
                $cb = new ilCheckboxInputGUI($lng->txt("disable_logging"), "chk_log_status");
                $this->form->addItem($cb);

                // path to error log dir
                $ti = new ilTextInputGUI($lng->txt("error_log_path"), "error_log_path");
                $ti->setInfo($lng->txt("error_log_path_comment".$lvext));
                $this->form->addItem($ti);

                // server settings
                $sh = new ilFormSectionHeaderGUI();
                $sh->setTitle($lng->txt("server_settings"));
                $this->form->addItem($sh);

                // time zone
                include_once("./Services/Calendar/classes/class.ilCalendarUtil.php");
                $si = new ilSelectInputGUI($lng->txt("time_zone"), "time_zone");
                $si->setOptions(array_merge(
                        array("" => "-- ".$lng->txt("please_select")." --"),
                        ilCalendarUtil::_getShortTimeZoneList()));
                $si->setRequired(true);
                $this->form->addItem($si);

                // https settings
                $sh = new ilFormSectionHeaderGUI();
                $sh->setTitle($lng->txt("https_settings"));
                $this->form->addItem($sh);

                $check = new ilCheckboxInputGUI($lng->txt('ps_auto_https'),'auto_https_detect_enabled');
                $check->setOptionTitle($lng->txt('ps_auto_https_description'));
                $check->setValue(1);

                $text = new ilTextInputGUI($lng->txt('ps_auto_https_header_name'),'auto_https_detect_header_name');
                $text->setSize(24);
                $text->setMaxLength(64);
                $text->setRequired(true);
                $check->addSubItem($text);

                $text = new ilTextInputGUI($lng->txt('ps_auto_https_header_value'),'auto_https_detect_header_value');
                $text->setSize(24);
                $text->setMaxLength(64);
                $text->setRequired(true);
                $check->addSubItem($text);

                $this->form->addItem($check);

                // required 3rd party tools
                $sh = new ilFormSectionHeaderGUI();
                $sh->setTitle($lng->txt("3rd_party_software_req"));
                $this->form->addItem($sh);

                // convert path
                $ti = new ilTextInputGUI($lng->txt("convert_path"), "convert_path");
                $ti->setInfo($lng->txt("convert_path_comment".$lvext));
                $ti->setRequired(true);
                $this->form->addItem($ti);

                // zip path
                $ti = new ilTextInputGUI($lng->txt("zip_path"), "zip_path");
                $ti->setInfo($lng->txt("zip_path_comment".$lvext));
                $ti->setRequired(true);
                $this->form->addItem($ti);

                // unzip path
                $ti = new ilTextInputGUI($lng->txt("unzip_path"), "unzip_path");
                $ti->setInfo($lng->txt("unzip_path_comment".$lvext));
                $ti->setRequired(true);
                $this->form->addItem($ti);

                // optional 3rd party tools
                $sh = new ilFormSectionHeaderGUI();
                $sh->setTitle($lng->txt("3rd_party_software_opt"));
                $this->form->addItem($sh);

                // ghostscript path
                $ti = new ilTextInputGUI($lng->txt("ghostscript_path"), "ghostscript_path");
                $ti->setInfo($lng->txt("ghostscript_path_comment".$lvext));
                $this->form->addItem($ti);

                // ffmpeg path
                $ti = new ilTextInputGUI($lng->txt("ffmpeg_path"), "ffmpeg_path");
                $ti->setInfo($lng->txt("ffmpeg_path_comment"));
                $this->form->addItem($ti);

                // latex
                $ti = new ilTextInputGUI($lng->txt("url_to_latex"), "latex_url");
                $ti->setInfo($lng->txt("latex_url_comment"));
                $this->form->addItem($ti);

                // virus scanner
                $options = array(
                        "none" => $lng->txt("none"),
                        "sophos" => $lng->txt("sophos"),
                        "antivir" => $lng->txt("antivir"),
                        "clamav" => $lng->txt("clamav")
                        );
                $si = new ilSelectInputGUI($lng->txt("virus_scanner"), "vscanner_type");
                $si->setOptions($options);
                $this->form->addItem($si);

                // scan command
                $ti = new ilTextInputGUI($lng->txt("scan_command"), "scan_command");
                $this->form->addItem($ti);

                // clean command
                $ti = new ilTextInputGUI($lng->txt("clean_command"), "clean_command");
                $this->form->addItem($ti);

                // enabled system styles mangesment
                $check = new ilCheckboxInputGUI($lng->txt('enable_system_styles_management'),'enable_system_styles_management');
                $check->setInfo($lng->txt('enable_system_styles_management_info'));
                $check->setValue(1);

                // lessc command
                $lessc = new ilTextInputGUI($lng->txt("lessc_path"), "lessc_path");
                $lessc->setInfo($lng->txt("lessc_path_comment"));
                $check->addSubItem($lessc);

                $this->form->addItem($check);


                if ($a_install)
                {
                        $sh = new ilFormSectionHeaderGUI();
                        $sh->setTitle($lng->txt("master_password"));
                        $this->form->addItem($sh);

                        // password
                        $pi = new ilPasswordInputGUI($lng->txt("password"), "password");
                        $pi->setRequired(true);
                        $pi->setSkipSyntaxCheck(true);
                        $pi->setInfo($lng->txt("password_info"));
                        $this->form->addItem($pi);
                }

                if ($a_install)
                {
                        $this->form->addCommandButton("saveBasicSettings", $lng->txt("save"));
                }
                else
                {
                        $this->form->addCommandButton("updateBasicSettings", $lng->txt("save"));
                        $this->form->addCommandButton("determineToolsPath", $lng->txt("determine_tools_paths"));
                }

                $this->form->setTitle($lng->txt("data_directories"));
                $this->form->setFormAction("setup.php?cmd=gateway");

                if ($a_install)
                {
                        $det = $this->determineTools();
                        $this->form->setValuesByArray($det);
                }

        }

        public function getBasicSettingsValues()
        {
                $values = array();

                $values["webspace_dir"] = getcwd()."/data";
                $values["data_dir"] = $this->setup->ini->readVariable("clients","datadir");
                $values["convert_path"] = $this->setup->ini->readVariable("tools","convert");
                $values["zip_path"] = $this->setup->ini->readVariable("tools","zip");
                $values["unzip_path"] = $this->setup->ini->readVariable("tools","unzip");
                $values["ghostscript_path"] = $this->setup->ini->readVariable("tools","ghostscript");
                //$values["mkisofs_path"] = $this->setup->ini->readVariable("tools","mkisofs");
                $values["ffmpeg_path"] = $this->setup->ini->readVariable("tools","ffmpeg");
                $values["latex_url"] = $this->setup->ini->readVariable("tools","latex");
                $values["fop_path"] = $this->setup->ini->readVariable("tools","fop");
                $values["vscanner_type"] = $this->setup->ini->readVariable("tools", "vscantype");
                $values["scan_command"] = $this->setup->ini->readVariable("tools", "scancommand");
                $values["clean_command"] = $this->setup->ini->readVariable("tools", "cleancommand");
                $values["enable_system_styles_management"] = $this->setup->ini->readVariable("tools", "enable_system_styles_management");
                $values["lessc_path"] = $this->setup->ini->readVariable("tools", "lessc");
                $values["log_path"] = $this->setup->ini->readVariable("log","path")."/".
                        $this->setup->ini->readVariable("log","file");
                $values["chk_log_status"] = !$this->setup->ini->readVariable("log","enabled");
                $values["error_log_path"] = $this->setup->ini->readVariable("log","error_path");
                $values["time_zone"] = $this->setup->ini->readVariable("server", "timezone");

                // https settings
                $values["auto_https_detect_enabled"] = $this->setup->ini->readVariable("https", "auto_https_detect_enabled");
                $values["auto_https_detect_header_name"] = $this->setup->ini->readVariable("https", "auto_https_detect_header_name");
                $values["auto_https_detect_header_value"] = $this->setup->ini->readVariable("https", "auto_https_detect_header_value");

                $this->form->setValuesByArray($values);
        }

        public function saveBasicSettings()
        {
                global $tpl, $lng, $ilCtrl;

                $this->initBasicSettingsForm(true);

                if ($this->form->checkInput())
                {
                        // correct paths on windows
                        if (ilUtil::isWindows())
                        {
                                $fs = array("datadir_path", "log_path", "convert_path", "zip_path",
                                        "unzip_path", "ghostscript_path", "ffmpeg_path","lessc_path");
                                foreach ($fs as $f)
                                {
                                        $_POST[$f] = str_replace("\\", "/", $_POST[$f]);
                                }
                        }
                        $_POST["setup_pass"] = $_POST["password"];
                        $_POST["setup_pass2"] = $_POST["password_retype"];
                        if (!$this->setup->checkDataDirSetup($_POST))
                        {
                                $i = $this->form->getItemByPostVar("datadir_path");
                                $i->setAlert($this->lng->txt($this->setup->getError()));
                                ilUtil::sendFailure($this->lng->txt("form_input_not_valid"),true);
                        }
                        else if (!$this->setup->checkLogSetup($_POST))
                        {
                                $i = $this->form->getItemByPostVar("log_path");
                                $i->setAlert($this->lng->txt($this->setup->getError()));
                                ilUtil::sendFailure($this->lng->txt("form_input_not_valid"),true);
                        }
                        else if(!$this->setup->checkErrorLogSetup($_POST["error_log_path"])) {
                                $i = $this->form->getItemByPostVar("error_log_path");
                                $i->setAlert($this->lng->txt($this->setup->getError()));
                                ilUtil::sendFailure($this->lng->txt("form_input_not_valid"),true);
                        }
                        else if (!$this->setup->checkPasswordSetup($_POST))
                        {
                                ilUtil::sendFailure($this->lng->txt($this->setup->getError()),true);
                        }
                        else if (!$this->setup->saveMasterSetup($_POST))
                        {
                                ilUtil::sendFailure($this->lng->txt($this->setup->getError()),true);
                        }
                        else
                        {
                                ilUtil::sendSuccess($this->lng->txt("settings_saved"),true);
                                ilUtil::redirect("setup.php?cmd=mastersettings");
                        }
                }

                $this->form->setValuesByPost();
                $this->displayMasterSetup(true);
        }

        public function updateBasicSettings()
        {
                global $tpl, $lng, $ilCtrl;

                $this->initBasicSettingsForm();

                if ($this->form->checkInput())
                {
                        if (ilUtil::isWindows())
                        {
                                $fs = array("datadir_path", "log_path", "convert_path", "zip_path",
                                        "unzip_path", "ghostscript_path", "ffmpeg_path","lessc_path");
                                foreach ($fs as $f)
                                {
                                        $_POST[$f] = str_replace("\\", "/", $_POST[$f]);
                                }
                        }

                        if (!$this->setup->checkLogSetup($_POST))
                        {
                                $i = $this->form->getItemByPostVar("log_path");
                                $i->setAlert($this->lng->txt($this->setup->getError()));
                                ilUtil::sendFailure($this->lng->txt("form_input_not_valid"),true);
                        }
                        else if (!$this->setup->checkErrorLogSetup($_POST["error_log_path"])) {
                                $i = $this->form->getItemByPostVar("error_log_path");
                                $i->setAlert($this->lng->txt($this->setup->getError()));
                                ilUtil::sendFailure($this->lng->txt("form_input_not_valid"),true);
                        }
                        else if (!$this->setup->updateMasterSettings($_POST))
                        {
                                ilUtil::sendFailure($this->lng->txt($this->setup->getError()),true);
                        }
                        else
                        {
                                ilUtil::sendSuccess($this->lng->txt("settings_saved"),true);
                                ilUtil::redirect("setup.php?cmd=mastersettings");
                        }
                }

                $this->form->setValuesByPost();
                $this->changeMasterSettings(true);
        }


        function loginClient()
        {
                session_destroy();

                ilUtil::redirect(ILIAS_HTTP_PATH."/login.php?client_id=".$this->setup->getClient()->getId());
        }

        function displayLogin($a_omit_minit = false, $a_omit_cinit = false)
        {
                global $lng;
                $this->tpl->setVariable("SETUP_LOGIN_CLASS", " ilSetupLogin");
                $this->tpl->addBlockFile("CONTENT","content","tpl.std_layout.html", "setup");

                if ($a_omit_minit)
                {
                        $m_form = $this->form->getHTML();
                }
                if (!$a_omit_cinit)
                {
                        $this->initClientLoginForm();
                }
                $cl_form = $this->form->getHTML();
                if (!$a_omit_minit)
                {
                        $this->initMasterLoginForm();
                        $m_form = $this->form->getHTML();
                }
                $this->tpl->setVariable("SETUP_CONTENT", $cl_form."<br>".$m_form);
                $this->tpl->setVariable("TXT_HEADER", $lng->txt("login"));
        }

        public function performMLogin()
        {
                $this->initMasterLoginForm();
                if ($this->form->checkInput())
                {
                        $i = $this->form->getItemByPostVar("mpassword");
                        if (!$this->setup->loginAsAdmin($_POST["mpassword"]))
                        {
                                $i->setAlert($this->lng->txt("login_invalid"));
                        }
                        else
                        {
                                // everything ok -> we are authenticated
                                ilUtil::redirect("setup.php");
                        }
                }

                // something wrong -> display login again               
                $this->form->setValuesByPost();
                $this->displayLogin(true);
        }

        function performLogin()
        {
                $this->initClientLoginForm();
                if ($this->form->checkInput())
                {
                        $i = $this->form->getItemByPostVar("password");
                        if (!$this->setup->loginAsClient(
                                array("client_id" => $_POST["client_id"],
                                "username" => $_POST["username"], "password" => $_POST["password"])))
                        {
                                $i->setAlert($this->setup->getError());
                        }
                        else
                        {
                                // everything ok -> we are authenticated
                                ilUtil::redirect("setup.php");
                        }
                }

                // something wrong -> display login again               
                $this->form->setValuesByPost();
                $this->displayLogin(false, true);
        }

        public function initClientLoginForm()
        {
                global $lng, $ilCtrl;

                include_once("Services/Form/classes/class.ilPropertyFormGUI.php");
                $this->form = new ilPropertyFormGUI();
                $this->form->setId("client_login");

                // client id
                $ti = new ilTextInputGUI($lng->txt("client_id"), "client_id");
                $ti->setMaxLength(32);
                $ti->setSize(20);
                $this->form->addItem($ti);

                // username
                $ti = new ilTextInputGUI($lng->txt("username"), "username");
                $ti->setSize(20);
                $this->form->addItem($ti);

                // password
                $pi = new ilPasswordInputGUI($lng->txt("password"), "password");
                $pi->setSize(20);
                $pi->setRetype(false);
                $pi->setSkipSyntaxCheck(true);
                $this->form->addItem($pi);

                $this->form->addCommandButton("performLogin", $lng->txt("login"));

                $this->form->setTitle($lng->txt("client_login"));
                $this->form->setFormAction("setup.php?cmd=gateway");
        }

        public function initMasterLoginForm()
        {
                global $lng, $ilCtrl;

                include_once("Services/Form/classes/class.ilPropertyFormGUI.php");
                $this->form = new ilPropertyFormGUI();
                $this->form->setId("master_login");             
                // password
                $pi = new ilPasswordInputGUI($lng->txt("password"), "mpassword");
                $pi->setSize(20);
                $pi->setRetype(false);
                $pi->setSkipSyntaxCheck(true);
                $this->form->addItem($pi);

                $this->form->addCommandButton("performMLogin", $lng->txt("login"));

                $this->form->setTitle($lng->txt("admin_login"));
                $this->form->setFormAction("setup.php?cmd=gateway");

        }


        function displayClientList()
        {
                $_SESSION["ClientId"] = "";

                $this->tpl->addBlockFile("CONTENT","content","tpl.clientlist.html", "setup");
                $this->tpl->setVariable("TXT_INFO", $this->lng->txt("info_text_list"));
                ilUtil::sendInfo();

                // common
                $this->tpl->setVariable("TXT_HEADER",$this->lng->txt("list_clients"));
                $this->tpl->setVariable("TXT_LISTSTATUS",($this->setup->ini->readVariable("clients","list")) ? $this->lng->txt("display_clientlist") : $this->lng->txt("hide_clientlist"));
                $this->tpl->setVariable("TXT_TOGGLELIST",($this->setup->ini->readVariable("clients","list")) ? $this->lng->txt("disable") : $this->lng->txt("enable"));

                include_once("./setup/classes/class.ilClientListTableGUI.php");
                $tab = new ilClientListTableGUI($this->setup);
                $this->tpl->setVariable("CLIENT_LIST", $tab->getHTML());

                // create new client button
                $this->btn_next_on = true;
                $this->btn_next_lng = $this->lng->txt("create_new_client")."...";
                $this->btn_next_cmd = "newclient";
        }

        function determineToolsPath()
        {
                $_POST = $this->determineTools($_POST);
                $this->updateBasicSettings();
        }

        function determineToolsPathInstall()
        {
                $this->displayMasterSetup(true);
        }

        function determineTools($a_tools = array())
        {
                $cwd = ilUtil::isWindows()
                        ? str_replace("\\", "/", getcwd())
                        : getcwd();
                if (!ilUtil::isWindows())
                {
                        $tools = array("convert" => "convert",
                                "zip" => "zip", "unzip" => "unzip", "ghostscript" => "gs",
                                "java" => "java", "ffmpeg" => "ffmpeg", "lessc"=>"lessc");
                        $dirs = array("/usr/local", "/usr/local/bin", "/usr/bin", "/bin", "/sw/bin", "/usr/bin");
                }
                else
                {
                        $tools = array("convert" => "convert.exe",
                                "zip" => "zip.exe", "unzip" => "unzip.exe");
                        $dirs = array();
                }
                foreach($tools as $k => $tool)
                {
                        // try which command
                        unset($ret);
                        @exec("which ".$tool, $ret);
                        if (substr($ret[0], 0, 3) != "no " && substr($ret[0], 0, 1) == "/")
                        {
                                $a_tools[$k."_path"] = $ret[0];
                                continue;
                        }

                        // try common directories
                        foreach($dirs as $dir)
                        {
                                if (@is_file($dir."/".$tool))
                                {
                                        $a_tools[$k."_path"] = $dir."/".$tool;
                                        continue;
                                }
                        }
                }
                return $a_tools;
        }



        function selectDBType()
        {
                $this->checkDisplayMode("create_new_client");

                unset($_SESSION["db_type"]);
                $this->initDBSelectionForm();
                $this->tpl->setVariable("SETUP_CONTENT", $this->form->getHTML());

                if ($this->setup->getClient()->status["ini"]["status"]) {
                        $this->setButtonNext("db");
                }

                $this->checkPanelMode();
        }

        public function initDBSelectionForm()
        {
                global $lng;

                require_once('./Services/Form/classes/class.ilPropertyFormGUI.php');
                require_once('./Services/Database/classes/class.ilDBConstants.php');
                $this->form = new ilPropertyFormGUI();

                // db type
                $options = ilDBConstants::getAvailableTypes(true);
                $si = new ilSelectInputGUI($lng->txt("db_type"), "db_type");
                $si->setOptions($options);
                $si->setInfo($lng->txt(""));
                $this->form->addItem($si);

                $this->form->addCommandButton("selectdbtype", $lng->txt("save"));

                $this->form->setTitle($lng->txt("db_selection"));
                $this->form->setFormAction("setup.php?cmd=gateway");
        }


        function displayIni($a_omit_form_init = false)
        {
                $this->checkDisplayMode("create_new_client");

                if ($_POST["db_type"] != "") {
                        $_SESSION["db_type"] = $_POST["db_type"];
                } else {
                        $_POST["db_type"] = $_SESSION["db_type"];
                }

                $has_ini = $this->setup->getClient()->status["ini"]["status"];

                // use value from client ini if setup was resumed (no value in session)
                if (!$_SESSION["db_type"] && $has_ini) {
                        $_SESSION["db_type"] = $this->setup->getClient()->getDbType();
                }

                $this->tpl->setVariable("TXT_INFO", $this->lng->txt("info_text_ini"));
                if (!$a_omit_form_init) {
                        $this->initClientIniForm();
                        $this->getClientIniValues();
                }
                $this->tpl->setVariable("SETUP_CONTENT", $this->form->getHTML());

                if ($has_ini) {
                        $this->setButtonNext("db");
                }

                $this->checkPanelMode();
        }

        protected function initClientIniForm()
        {
                global $lng;

                include_once("Services/Form/classes/class.ilPropertyFormGUI.php");
                $this->form = new ilPropertyFormGUI();

                // client id
                if ($this->setup->ini_client_exists) {
                        $hi = new ilHiddenInputGUI("client_id");
                        $hi->setValue($this->client_id);
                        $this->form->addItem($hi);

                        $ne = new ilNonEditableValueGUI($lng->txt("client_id"), "hh");
                        $ne->setValue($this->client_id);
                        $this->form->addItem($ne);
                } else {
                        $ti = new ilTextInputGUI($lng->txt("client_id"), "client_id");
                        $ti->setMaxLength(32);
                        $ti->setRequired(true);
                        $this->form->addItem($ti);
                }

                // database connection  
                $sh = new ilFormSectionHeaderGUI();
                $sh->setTitle($lng->txt("db_conn"));
                $this->form->addItem($sh);

                // db type
                $ne = new ilNonEditableValueGUI($lng->txt("db_type"), "dbt");
                $at = ilDBConstants::getAvailableTypes(true);
                $ne->setValue($at[$_SESSION["db_type"]] );
                $this->form->addItem($ne);

                // db host
                $ti = new ilTextInputGUI($lng->txt("db_host"), "db_host");
                $ti->setMaxLength(120);
                $ti->setRequired(true);
                $this->form->addItem($ti);

                // db name
                require_once('./Services/Database/classes/class.ilDBConstants.php');
                if (!in_array($_SESSION["db_type"], array( ilDBConstants::TYPE_ORACLE ))) {
                        $ti = new ilTextInputGUI($lng->txt("db_name"), "db_name");
                        $ti->setRequired(true);
                } else {
                        $ti = new ilTextInputGUI($lng->txt("db_service_name"), "db_name");
                }
                $ti->setMaxLength(40);
                $this->form->addItem($ti);

                // db user
                $ti = new ilTextInputGUI($lng->txt("db_user"), "db_user");
                $ti->setMaxLength(40);
                $ti->setRequired(true);
                $this->form->addItem($ti);

                // db port
                $ti = new ilTextInputGUI($lng->txt("db_port"), "db_port");
                $ti->setMaxLength(8);
                $this->form->addItem($ti);

                // db password
                $ti = new ilTextInputGUI($lng->txt("db_pass"), "db_pass");
                $ti->setMaxLength(40);
                $this->form->addItem($ti);

                $this->form->addCommandButton("saveClientIni", $lng->txt("save"));

                $this->form->setTitle($lng->txt("inst_identification"));
                $this->form->setFormAction("setup.php?cmd=gateway");
        }

        public function getClientIniValues()
        {
                $values = array();

                $values["db_host"] = $this->setup->getClient()->getDbHost();
                $values["db_user"] = $this->setup->getClient()->getDbUser();
                $values["db_port"] = $this->setup->getClient()->getDbPort();
                $values["db_pass"] = $this->setup->getClient()->getDbPass();
                $values["db_name"] = $this->setup->getClient()->getDbName();
                $values["client_id"] = $this->setup->getClient()->getId();

                $this->form->setValuesByArray($values);
        }
        
        public function saveClientIni()
        {
                $this->initClientIniForm();
                if ($this->form->checkInput()) {
                        if (strlen($_POST["client_id"]) != strlen(urlencode(($_POST["client_id"])))
                            || !$this->setup->isValidClientId($_POST["client_id"])
                        ) {
                                $i = $this->form->getItemByPostVar("client_id");
                                $i->setAlert($this->lng->txt("ini_client_id_invalid"));
                                ilUtil::sendFailure($this->lng->txt("ini_client_id_invalid"), true);
                        } else {
                                if (strlen($_POST["client_id"]) < 4) {
                                        $i = $this->form->getItemByPostVar("client_id");
                                        $i->setAlert($this->lng->txt("ini_client_id_too_short"));
                                        ilUtil::sendFailure($this->lng->txt("ini_client_id_too_short"), true);
                                } else {
                                        if (strlen($_POST["client_id"]) > 32) {
                                                $i = $this->form->getItemByPostVar("client_id");
                                                $i->setAlert($this->lng->txt("ini_client_id_too_long"));
                                                ilUtil::sendFailure($this->lng->txt("ini_client_id_too_long"), true);
                                        } else {
                                                if (!$this->setup->ini_client_exists && file_exists(ILIAS_ABSOLUTE_PATH . "/" . ILIAS_WEB_DIR . "/" . $_POST["client_id"])) {
                                                        $i = $this->form->getItemByPostVar("client_id");
                                                        $i->setAlert($this->lng->txt("ini_client_id_exists"));
                                                        ilUtil::sendFailure($this->lng->txt("ini_client_id_exists"), true);
                                                } else {

                                                        // save some old values
                                                        $old_db_name = $this->setup->getClient()->getDbName();
                                                        $old_db_type = $this->setup->getClient()->getDbType();
                                                        $old_client_id = $this->setup->getClient()->getId();

                                                        // create new client object if it does not exist
                                                        if (!$this->setup->ini_client_exists) {
                                                                $client_id = $_POST["client_id"];
                                                                $this->setup->newClient($client_id);
                                                        }

                                                        // set client data
                                                        $this->setup->getClient()->setId($_POST["client_id"]);
                                                        $this->setup->getClient()->setDbHost($_POST["db_host"]);
                                                        $this->setup->getClient()->setDbName($_POST["db_name"]);
                                                        $this->setup->getClient()->setDbUser($_POST["db_user"]);
                                                        $this->setup->getClient()->setDbPort($_POST["db_port"]);
                                                        $this->setup->getClient()->setDbPass($_POST["db_pass"]);
                                                        $this->setup->getClient()->setDbType($_SESSION["db_type"]);
                                                        $this->setup->getClient()->setDSN();

                                                        // try to connect to database
                                                        if (!$this->setup->getClient()->getDBSetup()->isConnectable()) {
                                                                $i = $this->form->getItemByPostVar("db_host");
                                                                $i->setAlert($this->lng->txt($this->setup->getClient()->getError()));
                                                                ilUtil::sendFailure($this->setup->getClient()->getError(), true);
                                                        } else {
                                                                // check if db exists
                                                                $db_installed = $this->setup->getClient()->getDBSetup()->isDatabaseInstalled();

                                                                if ($db_installed and (!$this->setup->ini_ilias_exists or ($this->setup->getClient()->getDbName() != $old_db_name))) {
                                                                        $_POST["db_name"] = $old_db_name;
                                                                        $message = ucfirst($this->lng->txt("database")) . " \"" . $this->setup->getClient()->getDbName() . "\" "
                                                                                   . $this->lng->txt("ini_db_name_exists");
                                                                        $i = $this->form->getItemByPostVar("db_name");
                                                                        $i->setAlert($message);
                                                                        ilUtil::sendFailure($message, true);
                                                                } else {
                                                                        // all ok. create client.ini and save posted data
                                                                        if (!$this->setup->ini_client_exists) {
                                                                                if ($this->setup->saveNewClient()) {
                                                                                        ilUtil::sendSuccess($this->lng->txt("settings_saved"), true);
                                                                                        $this->setup->getClient()->status["ini"]["status"] = true;
                                                                                        $_SESSION["ClientId"] = $client_id;
                                                                                        ilUtil::redirect("setup.php?cmd=displayIni&client_id=" . $client_id);
                                                                                } else {
                                                                                        $err = $this->setup->getError();
                                                                                        ilUtil::sendFailure($this->lng->txt("save_error") . ": " . $err, true);
                                                                                        $this->setup->getClient()->status["ini"]["status"] = false;
                                                                                        $this->setup->getClient()->status["ini"]["comment"] = $err;
                                                                                }
                                                                        } else {
                                                                                if ($this->setup->getClient()->ini->write()) {
                                                                                        ilUtil::sendSuccess($this->lng->txt("settings_changed"));
                                                                                        $this->setup->getClient()->status["ini"]["status"] = true;
                                                                                        ilUtil::redirect("setup.php?cmd=displayIni");
                                                                                } else {
                                                                                        $err = $this->setup->getClient()->ini->getError();
                                                                                        ilUtil::sendFailure($this->lng->txt("save_error") . ": " . $err, true);
                                                                                        $this->setup->getClient()->status["ini"]["status"] = false;
                                                                                        $this->setup->getClient()->status["ini"]["comment"] = $err;
                                                                                }
                                                                        }
                                                                }
                                                        }
                                                }
                                        }
                                }
                        }
                }

                $this->form->setValuesByPost();
                $this->displayIni(true);
        }

        function displayError($a_message)
        {
                $this->setDisplayMode("view");

                $this->tpl->addBlockFile("CONTENT", "content", "tpl.error.html", "setup");

                $this->tpl->setCurrentBlock("content");
                $this->tpl->setVariable("FORMACTION", $_SESSION["referer"]);
                $this->tpl->setVariable("TXT_BACK", $this->lng->txt("back"));
                $this->tpl->setVariable("ERROR_MESSAGE", ($a_message));
                $this->tpl->parseCurrentBlock();

//              $this->tpl->show();
//              exit();
        }

        function displayLogout()
        {
                $this->tpl->addBlockFile("CONTENT","content","tpl.logout.html", "setup");

                session_destroy();

                $this->logged_out = true;
                $this->tpl->setVariable("TXT_HEADER",$this->lng->txt("logged_out"));
                $this->tpl->setCurrentBlock("home_link");
                $this->tpl->setVariable("TXT_INDEX",$this->lng->txt("ilias_homepage"));
                $this->tpl->setVariable("LNK_INDEX",ILIAS_HTTP_PATH."/index.php");
                $this->tpl->parseCurrentBlock();
        }

        function displayProcessPanel()
        {
                include_once("./Services/UIComponent/Checklist/classes/class.ilChecklistGUI.php");
                $checklist = new ilChecklistGUI();
                $checklist->setHeading($this->lng->txt("setup_process_status"));


                $OK = "<font color=\"green\"><strong>OK</strong></font>";

                $steps = $this->setup->getStatus();
                
                // #16846
                $first = array("selectdb" => array(
                        "status" => ((bool)$_SESSION["db_type"] || (bool)$steps["ini"]["status"]),
                        "text" => $this->lng->txt("db_selection"),
                        "comment" => ""
                ));
                
                $steps = $first + $steps;               

                // remove access step
                unset($steps["access"]);

                $steps["ini"]["text"] = $this->lng->txt("setup_process_step_ini");
                $steps["db"]["text"]  = $this->lng->txt("setup_process_step_db");
                //$steps["sess"]["text"]      = $this->lng->txt("setup_process_step_sess");
                $steps["lang"]["text"]    = $this->lng->txt("setup_process_step_lang");
                $steps["contact"]["text"] = $this->lng->txt("setup_process_step_contact");
                $steps["proxy"]["text"]   = $this->lng->txt("setup_process_step_proxy");
                $steps["nic"]["text"]     = $this->lng->txt("setup_process_step_nic");
                $steps["finish"]["text"]  = $this->lng->txt("setup_process_step_finish");

                $stpl = new ilTemplate("tpl.process_panel.html", true, true, "setup");

                $num = 1;

                foreach ($steps as $key => $val)
                {
                        $stpl->setCurrentBlock("menu_row");
                        $stpl->setVariable("TXT_STEP",$this->lng->txt("step")." ".$num.": &nbsp;");
                        $stpl->setVariable("TXT_ACTION",$val["text"]);
                        $stpl->setVariable("IMG_ARROW", "spacer.png");

                        if ($this->cmd == $key and isset($this->cmd))
                        {
                                $stpl->setVariable("HIGHLIGHT", " style=\"font-weight:bold;\"");
                        }

                        $status = ($val["status"]) ? $OK : "";

                        $stpl->setVariable("TXT_STATUS",$status);
                        $stpl->parseCurrentBlock();

                        $checklist->addEntry($num.". ".$val["text"], "",
                                ($val["status"]) ?
                                        ilChecklistGUI::STATUS_OK : ilChecklistGUI::STATUS_NOT_OK,
                                ($this->cmd == $key and isset($this->cmd)),
                                "");

                        $num++;
                }

                $stpl->setVariable("TXT_SETUP_PROCESS_STATUS",$this->lng->txt("setup_process_status"));

                $this->tpl->setVariable("PROCESS_MENU", $checklist->getHTML());
        }

        function displayStatusPanel()
        {
                include_once("./Services/UIComponent/Checklist/classes/class.ilChecklistGUI.php");
                $checklist = new ilChecklistGUI();
                $checklist->setHeading($this->lng->txt("overall_status"));
                
                $OK = "<font color=\"green\"><strong>OK</strong></font>";

                //$this->tpl->addBlockFile("STATUS_PANEL","status_panel","tpl.status_panel.html", "setup");

                $this->tpl->setVariable("TXT_OVERALL_STATUS", $this->lng->txt("overall_status"));
                // display status
                if ($this->setup->getClient()->status)
                {
                        foreach ($this->setup->getClient()->status as $key => $val)
                        {
                                $status = ($val["status"]) ? $OK : "&nbsp;";
//                              $this->tpl->setCurrentBlock("status_row");
//                              $this->tpl->setVariable("TXT_STEP", $this->lng->txt("step_".$key));
//                              $this->tpl->setVariable("TXT_STATUS",$status);


//                              $this->tpl->setVariable("TXT_COMMENT",$val["comment"]);
//                              $this->tpl->parseCurrentBlock();

                                $checklist->addEntry($this->lng->txt("step_".$key), "",
                                        ($val["status"]) ?
                                                ilChecklistGUI::STATUS_OK : ilChecklistGUI::STATUS_NO_STATUS, false, $val["comment"]);
                        }
                }
                $this->tpl->setVariable("STATUS_PANEL", $checklist->getHTML());
        }

        function checkDisplayMode($a_title = "")
        {
                switch ($this->display_mode)
                {
                        case "view":
                                $this->tpl->addBlockFile("CONTENT","content","tpl.clientview.html", "setup");
                                // display tabs
                                include "./setup/include/inc.client_tabs.php";
                                $client_name = ($this->setup->getClient()->getName()) ? $this->setup->getClient()->getName() : $this->lng->txt("no_client_name");
                                $this->tpl->setVariable("TXT_HEADER",$client_name." (".$this->lng->txt("client_id").": ".$this->setup->getClient()->getId().")");
                                break;

                        case "setup":
                                $this->tpl->addBlockFile("CONTENT","content","tpl.clientsetup.html", "setup");
                                $this->tpl->setVariable("TXT_HEADER",$this->lng->txt($a_title));
                                break;

                        default:
                                $this->displayError($this->lng->txt("unknown_display_mode"));
                                exit();
                                break;
                }
        }

        function displaySubTabs()
        {
                $sub_tab_html = $this->tabs->getSubTabHTML();
                if ($sub_tab_html != "")
                {
                        $this->tpl->setVariable("SUBTABS", $sub_tab_html);
                }

        }


        function checkPanelMode()
        {
                switch ($this->display_mode)
                {
                        case "view":
                                $this->displayStatusPanel();
                                break;

                        case "setup":
                                $this->displayProcessPanel();
                                break;
                }
        }

        function displayStartup()
        {
                $this->tpl->addBlockFile("CONTENT","content","tpl.clientsetup.html", "setup");

                $this->tpl->setVariable("TXT_INFO",$this->lng->txt("info_text_first_client"));
                $this->tpl->setVariable("TXT_HEADER",$this->lng->txt("setup_first_client"));

                $this->displayProcessPanel();

                $this->setButtonNext("ini");
        }


        function displayDatabase()
        {
                global $ilErr,$ilDB,$ilLog;

                $this->checkDisplayMode("setup_database");

                // database is intalled
                if ($this->setup->getClient()->getDBSetup()->isDatabaseInstalled())
                {
                        $this->setDbSubTabs("db");

                        $ilDB = $this->setup->getClient()->getDB();
                        $this->lng->setDbHandler($ilDB);
                        include_once "./Services/Database/classes/class.ilDBUpdate.php";
                        $dbupdate = new ilDBUpdate($ilDB);
                        $db_status = $dbupdate->getDBVersionStatus();
                        $hotfix_available = $dbupdate->hotfixAvailable();
                        $custom_updates_available = $dbupdate->customUpdatesAvailable();
                        $this->initClientDbForm(false, $dbupdate, $db_status, $hotfix_available, $custom_updates_available);
                        $this->getClientDbFormValues($dbupdate);
                        $this->tpl->setVariable("SETUP_CONTENT", $this->form->getHTML());

                        if ($db_status)
                        {
                                $this->setButtonNext("lang");
                        }
                }
                else    // database is not installed
                {
                        $this->tpl->setVariable("TXT_INFO", $this->lng->txt("info_text_db")."<br />".
                                "<p><code>CREATE DATABASE &lt;your_db&gt; CHARACTER SET utf8 COLLATE &lt;your_collation&gt;</code></p>".
                                "<p><b>".$this->lng->txt("info_text_db2")."</b></p><br/>");

                        $this->initClientDbForm();
                        $this->getClientDbFormValues();
                        $this->tpl->setVariable("SETUP_CONTENT", $this->form->getHTML());
                        $this->setButtonPrev("ini");
                }

                $this->checkPanelMode();

                $this->displaySubTabs();
        }


        protected function displayCache() {
                require_once('Services/Form/classes/class.ilPropertyFormGUI.php');
                require_once('Services/GlobalCache/classes/class.ilGlobalCache.php');
                require_once('./Services/GlobalCache/classes/Settings/class.ilGlobalCacheSettings.php');
                $this->checkDisplayMode('setup_cache');
                $ilGlobalCacheSettings = new ilGlobalCacheSettings();
                $ilGlobalCacheSettings->readFromIniFile($this->setup->getClient()->ini);

                $cache_form = new ilPropertyFormGUI();
                $cache_form->setTitle($this->lng->txt('global_cache_configuration'));
                $cache_form->addCommandButton('saveCache', $this->lng->txt('save'));
                $cache_form->setFormAction('setup.php?cmd=gateway');

                $some_inactive = false;
                $message = '';
                $service_type = new ilRadioGroupInputGUI($this->lng->txt('global_cache_service_type'), 'global_cache_service_type');

                $option = new ilRadioOption($this->lng->txt('none'), - 1);
                $service_type->addOption($option);

                foreach (ilGlobalCache::getAllTypes() as $type) {
                        $option = new ilRadioOption($this->lng->txt('global_cache_service_type_' . $type->getServiceType()), $type->getServiceType());
                        $option->setInfo($this->lng->txt('global_cache_install_info_' . $type->getServiceType()));
                        if (! $type->isCacheServiceInstallable()) {
                                $option->setDisabled(true);
                                $message .= $this->lng->txt('global_cache_service_type_' . $type->getServiceType()) . ': ' . $type->getInstallationFailureReason()
                                        . '; ';
                                $some_inactive = true;
                        }
                        $service_type->addOption($option);
                }

                if ($some_inactive) {
                        $service_type->setAlert($message);
                        ilUtil::sendInfo($this->lng->txt('global_cache_supported_services'));
                }

                $service_type->setValue($ilGlobalCacheSettings->isActive() ? $ilGlobalCacheSettings->getService() : - 1);
                $cache_form->addItem($service_type);
                if ($ilGlobalCacheSettings->isActive()) {

                        $h = new ilFormSectionHeaderGUI();
                        $h->setTitle($this->lng->txt('cache_activated_components'));
                        $cache_form->addItem($h);

                        foreach (ilGlobalCache::getAvailableComponents() as $comp) {
                                $cc = new ilCheckboxInputGUI($this->lng->txt('cache_activate_' . $comp), 'activate[' . $comp . ']');
                                $cc->setChecked($ilGlobalCacheSettings->isComponentActivated($comp));
                                $cache_form->addItem($cc);
                        }

                        $cc = new ilCheckboxInputGUI($this->lng->txt('cache_activate_all' ), 'activate[all]');
                        $cc->setChecked($ilGlobalCacheSettings->areAllComponentActivated());
                        $cache_form->addItem($cc);
                }

                $table_html = '';
                require_once('./Services/UIComponent/Toolbar/classes/class.ilToolbarGUI.php');
                require_once('./Services/UIComponent/Button/classes/class.ilLinkButton.php');
                $ilToolbarGUI = new ilToolbarGUI();
                if ($ilGlobalCacheSettings->isActive()) {
                        $b = ilLinkButton::getInstance();
                        $b->setCaption('cache_flush');
                        $b->setUrl('setup.php?cmd=flushCache');
                        $ilToolbarGUI->addButtonInstance($b);
                }

                if ($ilGlobalCacheSettings->getService() == ilGlobalCache::TYPE_MEMCACHED) {
                        require_once('./Services/GlobalCache/classes/Memcache/class.ilMemcacheServerTableGUI.php');
                        $b = ilLinkButton::getInstance();
                        $b->setCaption('memcache_add');
                        $b->setUrl('setup.php?cmd=addMemcacheServer');
                        $ilToolbarGUI->addButtonInstance($b);
                        $ilMemcacheServerTableGUI = new ilMemcacheServerTableGUI(NULL);
                        $table_html = $ilMemcacheServerTableGUI->getHTML();
                }

                $this->tpl->setVariable('SETUP_CONTENT', $ilToolbarGUI->getHTML() . $cache_form->getHTML() . $table_html);
        }


        protected function flushCache() {
                require_once('Services/GlobalCache/classes/class.ilGlobalCache.php');
                ilGlobalCache::flushAll();
                ilUtil::redirect('setup.php?cmd=cache');
        }


        protected function addMemcacheServer() {
                require_once('./Services/GlobalCache/classes/Memcache/class.ilMemcacheServerFormGUI.php');
                $this->checkDisplayMode('setup_cache');
                $ilMemcacheServerFormGUI = new ilMemcacheServerFormGUI(new ilMemcacheServer());
                $this->tpl->setVariable('SETUP_CONTENT', $ilMemcacheServerFormGUI->getHTML());
        }


        protected function createMemcacheServer() {
                require_once('./Services/GlobalCache/classes/Memcache/class.ilMemcacheServerFormGUI.php');
                $this->checkDisplayMode('setup_cache');
                $ilMemcacheServerFormGUI = new ilMemcacheServerFormGUI(new ilMemcacheServer());
                $ilMemcacheServerFormGUI->setValuesByPost();
                if ($ilMemcacheServerFormGUI->saveObject()) {
                        ilUtil::redirect('setup.php?cmd=cache');
                }
                $this->tpl->setVariable('SETUP_CONTENT', $ilMemcacheServerFormGUI->getHTML());
        }


        protected function editMemcacheServer() {
                require_once('./Services/GlobalCache/classes/Memcache/class.ilMemcacheServerFormGUI.php');
                $this->checkDisplayMode('setup_cache');
                $ilMemcacheServerFormGUI = new ilMemcacheServerFormGUI(ilMemcacheServer::find($_GET['mcsid']));
                $ilMemcacheServerFormGUI->fillForm();
                $this->tpl->setVariable('SETUP_CONTENT', $ilMemcacheServerFormGUI->getHTML());
        }


        protected function updateMemcacheServer() {
                require_once('./Services/GlobalCache/classes/Memcache/class.ilMemcacheServerFormGUI.php');
                $this->checkDisplayMode('setup_cache');

                $ilMemcacheServerFormGUI = new ilMemcacheServerFormGUI(ilMemcacheServer::find($_GET['mcsid']));
                $ilMemcacheServerFormGUI->setValuesByPost();
                if ($ilMemcacheServerFormGUI->saveObject()) {
                        ilUtil::redirect('setup.php?cmd=cache');
                }
                $this->tpl->setVariable('SETUP_CONTENT', $ilMemcacheServerFormGUI->getHTML());
        }


        protected function deleteMemcacheServer() {
                require_once('./Services/GlobalCache/classes/Memcache/class.ilMemcacheServer.php');
                $ilMemcacheServer = ilMemcacheServer::find($_GET['mcsid']);
                $ilMemcacheServer->delete();
                ilUtil::redirect('setup.php?cmd=cache');
        }


        public function saveCache() {
                require_once('Services/GlobalCache/classes/class.ilGlobalCache.php');
                require_once('./Services/GlobalCache/classes/Settings/class.ilGlobalCacheSettings.php');
                ilGlobalCache::flushAll();
                $ini = $this->setup->getClient()->ini;

                $ilGlobalCacheSettings = new ilGlobalCacheSettings();
                $ilGlobalCacheSettings->readFromIniFile($ini);
                $service_type = $_POST['global_cache_service_type'];
                $ilGlobalCacheSettings->setActive(($service_type >= 0) ? true : false);
                $ilGlobalCacheSettings->setService($service_type);
                $ilGlobalCacheSettings->resetActivatedComponents();
                if (is_array($_POST['activate']) && count($_POST['activate']) > 0) {
                        foreach ($_POST['activate'] as $comp => $a) {
                                if ($comp == 'all') {
                                        $ilGlobalCacheSettings->activateAll();
                                        break;
                                }
                                $ilGlobalCacheSettings->addActivatedComponent($comp);
                        }
                }

                $ilGlobalCacheSettings->writeToIniFile($ini);

                ilUtil::sendSuccess($this->lng->txt('saved_successfully'), true);
                ilUtil::redirect('setup.php?cmd=cache');
        }


        function displayDatabaseSlave($a_from_save = false)
        {
                global $ilErr,$ilDB,$ilLog;

                $this->checkDisplayMode("setup_database");

                //$this->tpl->addBlockFile("SETUP_CONTENT","setup_content","tpl.clientsetup_db.html", "setup");

                // database is intalled
                if (!$this->setup->getClient()->db_installed)
                {
                        return;
                }

                $this->setDbSubTabs("repl");

                if (!$a_from_save)
                {
                        $ilDB = $this->setup->getClient()->db;
                        $this->lng->setDbHandler($ilDB);
                }

                ilUtil::sendInfo($this->lng->txt("mysql_replication_info_alpha"));

                if (!$a_from_save)
                {
                        $this->initDbSlaveForm();
                }

                $this->tpl->setVariable("SETUP_CONTENT", $this->form->getHTML());

                $this->checkPanelMode();

                $this->displaySubTabs();
        }

        public function initDbSlaveForm()
        {
                global $lng, $ilCtrl, $ilDB;

                $client = $this->setup->getClient();

                include_once("Services/Form/classes/class.ilPropertyFormGUI.php");
                $this->form = new ilPropertyFormGUI();

                // db type
                $ne = new ilNonEditableValueGUI($lng->txt("db_type"), "slave_type");
                $ne->setValue($lng->txt("db_".$ilDB->getDbType()));
                $this->form->addItem($ne);

                // activate slave
                $act = new ilCheckboxInputGUI($this->lng->txt("db_active"), "slave_active");
                $act->setChecked($client->getDbSlaveActive());
                $this->form->addItem($act);

                // slave host
                $ti = new ilTextInputGUI($lng->txt("db_host"), "slave_host");
                $ti->setValue($client->getDbSlaveHost());
                $ti->setMaxLength(120);
                $ti->setRequired(true);
                $act->addSubItem($ti);

                // slave name
                $ti = new ilTextInputGUI($lng->txt("db_name"), "slave_name");
                $ti->setValue($client->getDbSlaveName());
                $ti->setRequired(true);
                $ti->setMaxLength(40);
                $act->addSubItem($ti);

                // slave user
                $ti = new ilTextInputGUI($lng->txt("db_user"), "slave_user");
                $ti->setValue($client->getDbSlaveUser());
                $ti->setMaxLength(40);
                $ti->setRequired(true);
                $act->addSubItem($ti);

                // slave port
                $ti = new ilTextInputGUI($lng->txt("db_port"), "slave_port");
                $ti->setValue($client->getDbSlavePort());
                $ti->setMaxLength(8);
                $act->addSubItem($ti);

                // set password
                $set_pw = new ilCheckboxInputGUI($this->lng->txt("db_set_password"), "set_slave_password");
                $act->addSubItem($set_pw);

                // slave password
                $ti = new ilTextInputGUI($lng->txt("db_pass"), "slave_pass");
                $ti->setMaxLength(40);
                $set_pw->addSubItem($ti);

                $this->form->addCommandButton("saveDbSlave", $lng->txt("save"));

                $this->form->setTitle($lng->txt("db_slave_settings"));
                $this->form->setFormAction("setup.php?cmd=gateway");
        }

        public function saveDbSlave()
        {
                global $tpl, $lng, $ilCtrl, $ilDB;

                $client = $this->setup->getClient();

                $ilDB = $this->setup->getClient()->db;
                $this->lng->setDbHandler($ilDB);

                $this->initDbSlaveForm();
                if ($this->form->checkInput())
                {
                        $client->setDbSlaveActive($this->form->getInput("slave_active"));
                        if ($this->form->getInput("slave_active"))
                        {
                                $client->setDbSlaveHost($this->form->getInput("slave_host"));
                                $client->setDbSlaveUser($this->form->getInput("slave_user"));
                                $client->setDbSlavePort($this->form->getInput("slave_port"));
                                $client->setDbSlaveName($this->form->getInput("slave_name"));
                                if ($this->form->getInput("set_slave_password"))
                                {
                                        $client->setDbSlavePass($this->form->getInput("slave_pass"));
                                }
                        }
                        $client->writeIni();

                        ilUtil::sendSuccess($lng->txt("saved_successfully"), true);
                        ilUtil::redirect("setup.php?cmd=dbslave");
                }
                else
                {
                        $this->form->setValuesByPost();
                        $this->displayDatabaseSlave(true);
                }
        }


        function setDbSubtabs($a_subtab_id = "db")
        {
                global $ilDB;

                if ($ilDB->getDbType() == "mysql")
                {
                        $this->tabs->addSubTab("db", $this->lng->txt("db_master"), "setup.php?client_id=".$this->client_id."&cmd=db");
                        $this->tabs->addSubTab("repl", $this->lng->txt("db_slave"), "setup.php?client_id=".$this->client_id."&cmd=dbslave");
                }

                $this->tabs->activateSubTab($a_subtab_id);
        }



        public function initClientDbForm($a_install = true, $dbupdate = null, $db_status = false, $hotfix_available = false, $custom_updates_available = false)
        {
                global $lng, $ilCtrl;

                include_once("Services/Form/classes/class.ilPropertyFormGUI.php");
                $this->form = new ilPropertyFormGUI();

                // type
                $ne = new ilNonEditableValueGUI($lng->txt("db_type"), "db_type");
                $this->form->addItem($ne);

                // version
                if ($this->setup->getClient()->getDBSetup()->isDatabaseInstalled()
                    && in_array($this->setup->getClient()->getDbType(), array(
                                ilDBConstants::TYPE_MYSQL,
                                ilDBConstants::TYPE_INNODB,
                        ))
                ) {
                        $ne = new ilNonEditableValueGUI($lng->txt("version"), "db_version");
                        $ilDB = $this->setup->getClient()->db;
                        $ne->setValue($ilDB->getDBVersion());
                        $this->form->addItem($ne);
                }

                // host
                $ne = new ilNonEditableValueGUI($lng->txt("host"), "db_host");
                $this->form->addItem($ne);

                // name
                $ne = new ilNonEditableValueGUI($lng->txt("name"), "db_name");
                $this->form->addItem($ne);

                // user
                $ne = new ilNonEditableValueGUI($lng->txt("user"), "db_user");
                $this->form->addItem($ne);

                // port
                $ne = new ilNonEditableValueGUI($lng->txt("port"), "db_port");
                $this->form->addItem($ne);

                // creation / collation for mysql
                if ((in_array($this->setup->getClient()->getDBType(), ilDBConstants::getInstallableTypes()) && $a_install))
                {
                        // create database 
                        $cb = new ilCheckboxInputGUI($lng->txt("database_create"), "chk_db_create");

                                // collation
                                $collations = array
                                (
                                        "utf8_unicode_ci",
                                        "utf8_general_ci",
                                        "utf8_czech_ci",
                                        "utf8_danish_ci",
                                        "utf8_estonian_ci",
                                        "utf8_icelandic_ci",
                                        "utf8_latvian_ci",
                                        "utf8_lithuanian_ci",
                                        "utf8_persian_ci",
                                        "utf8_polish_ci",
                                        "utf8_roman_ci",
                                        "utf8_romanian_ci",
                                        "utf8_slovak_ci",
                                        "utf8_slovenian_ci",
                                        "utf8_spanish2_ci",
                                        "utf8_spanish_ci",
                                        "utf8_swedish_ci",
                                        "utf8_turkish_ci"
                                );
                                foreach($collations as $collation)
                                {
                                        $options[$collation] = $collation;
                                }
                                $si = new ilSelectInputGUI($lng->txt("collation"), "collation");
                                $si->setOptions($options);
                                $si->setInfo($this->lng->txt("info_text_db_collation2")." ".
                                        "<a target=\"_new\" href=\"http://dev.mysql.com/doc/mysql/en/charset-unicode-sets.html\">".
                                        " MySQL Reference Manual :: 10.11.1 Unicode Character Sets</a>");
                                $cb->addSubItem($si);

                        $this->form->addItem($cb);
                }

                if ($a_install)
                {
                        $this->form->addCommandButton("installDatabase", $lng->txt("database_install"));
                }
                else
                {
                        $ilDB = $this->setup->getClient()->db;
                        $this->lng->setDbHandler($ilDB);
                        $dbupdate = new ilDBUpdate($ilDB);

                        // database version
                        $ne = new ilNonEditableValueGUI($lng->txt("database_version"), "curv");
                        $ne->setValue($dbupdate->currentVersion);
                        $this->form->addItem($ne);

                        // file version
                        $ne = new ilNonEditableValueGUI($lng->txt("file_version"), "filev");
                        $ne->setValue($dbupdate->fileVersion);
                        $this->form->addItem($ne);

                        if (!$db_status = $dbupdate->getDBVersionStatus())
                        {
                                // next update step
                                $options = array();
                                for ($i = $dbupdate->currentVersion + 1; $i <= $dbupdate->fileVersion; $i++)
                                {
                                        $options[$i] = $i;
                                }
                                if (count($options) > 1)
                                {
                                        $si = new ilSelectInputGUI($lng->txt("next_update_break"), "update_break");
                                        $si->setOptions($options);
                                        $si->setInfo($lng->txt("next_update_break_info"));
                                        $this->form->addItem($si);
                                }

                                if ($dbupdate->getRunningStatus() > 0)
                                {
                                        ilUtil::sendFailure($this->lng->txt("db_update_interrupted")." (Step ".$dbupdate->getRunningStatus().") <br /><br />".
                                                $this->lng->txt("db_update_interrupted_avoid"));
                                }
                                else
                                {
                                        ilUtil::sendInfo($this->lng->txt("database_needs_update"));
                                }
                                $this->form->addCommandButton("updateDatabase", $lng->txt("database_update"));
                                $this->form->addCommandButton("showUpdateSteps", $lng->txt("show_update_steps"));
                        }
                        else if ($hotfix_available)
                        {
                                // hotfix current version
                                $ne = new ilNonEditableValueGUI($lng->txt("applied_hotfixes"), "curhf");
                                $ne->setValue($dbupdate->getHotfixCurrentVersion());
                                $this->form->addItem($ne);

                                // hotfix file version
                                $ne = new ilNonEditableValueGUI($lng->txt("available_hotfixes"), "filehf");
                                $ne->setValue($dbupdate->getHotfixFileVersion());
                                $this->form->addItem($ne);

                                $this->form->addCommandButton("applyHotfix", $lng->txt("apply_hotfixes"));
                                $this->form->addCommandButton("showHotfixSteps", $lng->txt("show_update_steps"));
                                ilUtil::sendInfo($this->lng->txt("database_needs_update"));
                        }
                        elseif($custom_updates_available)
                        {
                                // custom updates current version
                                $ne = new ilNonEditableValueGUI($lng->txt("applied_custom_updates"), "curcu");
                                $ne->setValue($dbupdate->getCustomUpdatesCurrentVersion());
                                $this->form->addItem($ne);

                                // custom updates file version
                                $ne = new ilNonEditableValueGUI($lng->txt("available_custom_updates"), "filecu");
                                $ne->setValue($dbupdate->getCustomUpdatesFileVersion());
                                $this->form->addItem($ne);

                                $this->form->addCommandButton("applyCustomUpdates", $lng->txt("apply_custom_updates"));
                                ilUtil::sendInfo($this->lng->txt("database_needs_update"));
                        }
                        else
                        {
                                if ($dbupdate->getHotfixFileVersion() > 0)
                                {
                                        // hotfix current version
                                        $ne = new ilNonEditableValueGUI($lng->txt("applied_hotfixes"), "curhf");
                                        $ne->setValue($dbupdate->getHotfixCurrentVersion());
                                        $this->form->addItem($ne);

                                        // hotfix file version
                                        $ne = new ilNonEditableValueGUI($lng->txt("available_hotfixes"), "filehf");
                                        $ne->setValue($dbupdate->getHotfixFileVersion());
                                        $this->form->addItem($ne);
                                }
                                if ($dbupdate->getCustomUpdatesFileVersion() > 0)
                                {
                                        // custom updates current version
                                        $ne = new ilNonEditableValueGUI($lng->txt("applied_custom_updates"), "curcu");
                                        $ne->setValue($dbupdate->getCustomUpdatesCurrentVersion());
                                        $this->form->addItem($ne);

                                        // custom updates file version
                                        $ne = new ilNonEditableValueGUI($lng->txt("available_custom_updates"), "filecu");
                                        $ne->setValue($dbupdate->getCustomUpdatesFileVersion());
                                        $this->form->addItem($ne);
                                }
                                ilUtil::sendSuccess($this->lng->txt("database_is_uptodate"));
                        }
                }

                $this->form->setTitle($lng->txt("database"));
                $this->form->setFormAction("setup.php?cmd=gateway");
        }

        public function getClientDbFormValues($dbupdate = null)
        {
                $values = array();
                $values["db_host"] = $this->setup->getClient()->getDbHost();
                $values["db_name"] = $this->setup->getClient()->getDbName();
                $values["db_user"] = $this->setup->getClient()->getDbUser();
                $values["db_port"] = $this->setup->getClient()->getDbPort();
                $values["db_type"] = ilDBConstants::describe($this->setup->getClient()->getDbType());
                if (is_object($dbupdate))
                {
                        $values["update_break"] = $dbupdate->fileVersion;
                        if (($dbupdate->fileVersion - $dbupdate->currentVersion) >= 200)
                        {
                                $values["update_break"] = $dbupdate->currentVersion + 200 -
                                        ($dbupdate->currentVersion % 100);
                        }
                }

                $this->form->setValuesByArray($values);
        }


        function installDatabase()
        {
                if (!$this->setup->getClient()->getDBSetup()->isDatabaseExisting()) {
                        if ($_POST["chk_db_create"]) {
                                if (!$this->setup->createDatabase($_POST["collation"])) {
                                        echo "installation failed";
                                        ilUtil::sendFailure($this->lng->txt($this->setup->getError()), true);
                                        ilUtil::redirect("setup.php?cmd=displayDatabase");
                                }
                        } else {
                                ilUtil::sendFailure($this->lng->txt("database_not_exists_create_first"), true);
                                ilUtil::redirect("setup.php?cmd=displayDatabase");
                        }
                }
                if (!$this->setup->installDatabase()) {
                        ilUtil::sendFailure($this->lng->txt($this->setup->getError()), true);
                } else {
                        ilUtil::sendSuccess($this->lng->txt("database_installed"), true);
                }
                ilUtil::redirect("setup.php?cmd=displayDatabase");
        }


        function updateDatabase()
        {
                global $ilCtrlStructureReader;

                $ilCtrlStructureReader->setIniFile($this->setup->getClient()->ini);

                include_once "./Services/Database/classes/class.ilDBUpdate.php";
                include_once "./Services/AccessControl/classes/class.ilRbacAdmin.php";
                include_once "./Services/AccessControl/classes/class.ilRbacReview.php";
                include_once "./Services/AccessControl/classes/class.ilRbacSystem.php";
                include_once "./Services/Tree/classes/class.ilTree.php";
                include_once "./Services/Xml/classes/class.ilSaxParser.php";
                include_once "./Services/Object/classes/class.ilObjectDefinition.php";


                // referencing db handler in language class
                $ilDB = $this->setup->getClient()->db;
                $this->lng->setDbHandler($ilDB);

                // run dbupdate
                $dbupdate = new ilDBUpdate($ilDB);
                $dbupdate->applyUpdate((int) $_POST["update_break"]);

                if ($dbupdate->updateMsg == "no_changes")
                {
                        $message = $this->lng->txt("no_changes").". ".$this->lng->txt("database_is_uptodate");
                }
                else
                {
                        $sep = "";
                        foreach ($dbupdate->updateMsg as $row)
                        {
                                if ($row["msg"] == "update_applied")
                                {
                                        $a_message.= $sep.$row["nr"];
                                        $sep = ", ";
                                }
                                else
                                {
                                        $e_message.= "<br/>".$this->lng->txt($row["msg"]).": ".$row["nr"];
                                }
                        }
                        if ($a_message != "")
                        {
                                $a_message = $this->lng->txt("update_applied").": ".$a_message;
                        }
                }

                ilUtil::sendInfo($a_message.$e_message, true);
                ilUtil::redirect("setup.php?cmd=displayDatabase");
        }


        function showHotfixSteps()
        {
                $this->showUpdateSteps(true);
        }


        function showUpdateSteps($a_hotfix = false)
        {
                global $ilCtrlStructureReader;

                $this->checkDisplayMode("setup_database");

                //$this->tpl->addBlockFile("SETUP_CONTENT","setup_content","tpl.clientsetup_db.html", "setup");

                // database is intalled
                if ($this->setup->getClient()->db_installed)
                {
                        $ilDB = $this->setup->getClient()->db;
                        $this->lng->setDbHandler($ilDB);
                        $dbupdate = new ilDBUpdate($ilDB);
                        $db_status = $dbupdate->getDBVersionStatus();
                        $hotfix_available = $dbupdate->hotfixAvailable();
                        $custom_updates_available = $dbupdate->customUpdatesAvailable();
//                      $this->initClientDbForm(false, $dbupdate, $db_status, $hotfix_available, $custom_updates_available);
//                      $this->getClientDbFormValues($dbupdate);

                        $ntpl = new ilTemplate("tpl.setup_steps.html", true, true, "setup");
                        if ($a_hotfix)
                        {
                                $ntpl->setVariable("CONTENT", $dbupdate->getHotfixSteps());
                        }
                        else
                        {
                                $ntpl->setVariable("CONTENT", $dbupdate->getUpdateSteps($_POST["update_break"]));
                        }
                        $ntpl->setVariable("BACK", $this->lng->txt("back"));
                        $ntpl->setVariable("HREF_BACK", "./setup.php?client_id=&cmd=db");
                        $this->tpl->setVariable("SETUP_CONTENT", $ntpl->get());
                }
        }



        function applyHotfix()
        {
                global $ilCtrlStructureReader;

                $ilCtrlStructureReader->setIniFile($this->setup->getClient()->ini);

                include_once "./Services/Database/classes/class.ilDBUpdate.php";
                include_once "./Services/AccessControl/classes/class.ilRbacAdmin.php";
                include_once "./Services/AccessControl/classes/class.ilRbacReview.php";
                include_once "./Services/AccessControl/classes/class.ilRbacSystem.php";
                include_once "./Services/Tree/classes/class.ilTree.php";
                include_once "./Services/Xml/classes/class.ilSaxParser.php";
                include_once "./Services/Object/classes/class.ilObjectDefinition.php";

                // referencing db handler in language class
                $ilDB = $this->setup->getClient()->db;
                $this->lng->setDbHandler($ilDB);

                // run dbupdate
                $dbupdate = new ilDBUpdate($ilDB);
                $dbupdate->applyHotfix();

                if ($dbupdate->updateMsg == "no_changes")
                {
                        $message = $this->lng->txt("no_changes").". ".$this->lng->txt("database_is_uptodate");
                }
                else
                {
                        $sep = "";
                        foreach ($dbupdate->updateMsg as $row)
                        {
                                if ($row["msg"] == "update_applied")
                                {
                                        $a_message.= $sep.$row["nr"];
                                        $sep = ", ";
                                }
                                else
                                {
                                        $e_message.= "<br/>".$this->lng->txt($row["msg"]).": ".$row["nr"];
                                }
                        }
                        if ($a_message != "")
                        {
                                $a_message = $this->lng->txt("update_applied").": ".$a_message;
                        }
                }

                ilUtil::sendInfo($a_message.$e_message, true);
                ilUtil::redirect("setup.php?cmd=displayDatabase");
        }


        function displaySessions()
        {
                require_once('Services/Authentication/classes/class.ilSessionControl.php');

                $this->checkDisplayMode("setup_sessions");

                if (!$this->setup->getClient()->db_installed)
                {
                        // program should never come to this place
                        $message = "No database found! Please install database first.";
                        ilUtil::sendInfo($message);
                }

                $setting_fields = ilSessionControl::getSettingFields();

                $valid = true;
                $settings = array();

                foreach( $setting_fields as $field )
                {
                        if( $field == 'session_allow_client_maintenance' )
                        {
                                if( isset($_POST[$field]) )             $_POST[$field] = '1';
                                else                                                    $_POST[$field] = '0';
                        }

                        if( isset($_POST[$field]) && $_POST[$field] != '' )
                        {
                                $settings[$field] = $_POST[$field];
                        }
                        else
                        {
                                $valid = false;
                                break;
                        }

                }

                if($valid) $this->setup->setSessionSettings($settings);

                $settings = $this->setup->getSessionSettings();

                include_once("Services/Form/classes/class.ilPropertyFormGUI.php");
                $form = new ilPropertyFormGUI();

                include_once 'Services/Authentication/classes/class.ilSession.php';

                // BEGIN SESSION SETTINGS
                // create session handling radio group
                $ssettings = new ilRadioGroupInputGUI($this->lng->txt('sess_mode'), 'session_handling_type');
                $ssettings->setValue($settings['session_handling_type'], ilSession::SESSION_HANDLING_FIXED);

                // first option, fixed session duration
                $fixed = new ilRadioOption($this->lng->txt('sess_fixed_duration'), ilSession::SESSION_HANDLING_FIXED);

                // add session handling to radio group
                $ssettings->addOption($fixed);

                // second option, session control
                $ldsh = new ilRadioOption($this->lng->txt('sess_load_dependent_session_handling'), ilSession::SESSION_HANDLING_LOAD_DEPENDENT);

                // this is the max count of active sessions
                // that are getting started simlutanously
                $ti = new ilTextInputGUI($this->lng->txt('sess_max_session_count'), "session_max_count");
                $ti->setInfo($this->lng->txt('sess_max_session_count_info'));
                $ti->setMaxLength(5);
                $ti->setSize(5);
                $ti->setValue($settings['session_max_count']);
                $ldsh->addSubItem($ti);

                // after this (min) idle time the session can be deleted,
                // if there are further requests for new sessions,
                // but max session count is reached yet
                $ti = new ilTextInputGUI($this->lng->txt('sess_min_session_idle'), "session_min_idle");
                $ti->setInfo($this->lng->txt('sess_min_session_idle_info'));
                $ti->setMaxLength(5);
                $ti->setSize(5);
                $ti->setValue($settings['session_min_idle']);
                $ldsh->addSubItem($ti);

                // after this (max) idle timeout the session expires
                // and become invalid, so it is not considered anymore
                // when calculating current count of active sessions
                $ti = new ilTextInputGUI($this->lng->txt('sess_max_session_idle'), "session_max_idle");
                $ti->setInfo($this->lng->txt('sess_max_session_idle_info'));
                $ti->setMaxLength(5);
                $ti->setSize(5);
                $ti->setValue($settings['session_max_idle']);
                $ldsh->addSubItem($ti);

                // this is the max duration that can elapse between the first and the secnd
                // request to the system before the session is immidietly deleted
                $ti = new ilTextInputGUI($this->lng->txt('sess_max_session_idle_after_first_request'), "session_max_idle_after_first_request");
                $ti->setInfo($this->lng->txt('sess_max_session_idle_after_first_request_info'));
                $ti->setMaxLength(5);
                $ti->setSize(5);
                $ti->setValue($settings['session_max_idle_after_first_request']);
                $ldsh->addSubItem($ti);

                // add session control to radio group
                $ssettings->addOption($ldsh);

                $form->addItem($ssettings);

                // controls the ability t maintenance the following
                // settings in client administration
                $chkb = new ilCheckboxInputGUI($this->lng->txt('sess_allow_client_maintenance'), "session_allow_client_maintenance");
                $chkb->setInfo($this->lng->txt('sess_allow_client_maintenance_info'));
                $chkb->setChecked($settings['session_allow_client_maintenance'] ? true : false);
                $form->addItem($chkb);
                // END SESSION SETTINGS

                // save and cancel commands
                $form->addCommandButton("sess", $this->lng->txt('save'));

                $form->setTitle($this->lng->txt("sess_sessions"));
                $form->setFormAction('setup.php?client_id='.$this->client_id.'&cmd=sess');

                $this->tpl->setVariable("TXT_SETUP_TITLE",ucfirst(trim($this->lng->txt('sess_sessions'))));
                $this->tpl->setVariable("TXT_INFO", '');
                $this->tpl->setVariable("SETUP_CONTENT", $form->getHTML());

                /*$this->setButtonPrev("db");

                if($this->setup->checkClientSessionSettings($this->client,true))
                {
                        $this->setButtonNext("lang");
                }*/

                $this->checkPanelMode();
        }


        function displayLanguages()
        {
                $this->checkDisplayMode("setup_languages");

                if (!$this->setup->getClient()->db_installed)
                {
                        // program should never come to this place
                        $message = "No database found! Please install database first.";
                        ilUtil::sendFailure($message);
                }

                include_once("./setup/classes/class.ilSetupLanguageTableGUI.php");
                $tab = new ilSetupLanguageTableGUI($this->setup->getClient());
                $this->tpl->setVariable("SETUP_CONTENT", $tab->getHTML());

                $this->tpl->setVariable("TXT_SETUP_TITLE",ucfirst(trim($this->lng->txt("setup_languages"))));
                $this->tpl->setVariable("TXT_INFO", $this->lng->txt("info_text_lang"));

                $installed_langs = $this->lng->getInstalledLanguages();
                $lang_count = count($installed_langs);
                if ($lang_count > 0)
                {
                        $this->setup->getClient()->status["lang"]["status"] = true;
                        $this->setup->getClient()->status["lang"]["comment"] = $lang_count." ".$this->lng->txt("languages_installed");
                }
                else
                {
                        $this->setup->getClient()->status["lang"]["status"] = false;
                        $this->setup->getClient()->status["lang"]["comment"] = $this->lng->txt("lang_none_installed");
                }

                $this->setButtonPrev("lang");

                if ($lang_count > 0)
                {
                        $this->setButtonNext("contact");
                }

                $this->checkPanelMode();
        }

        function saveLanguages()
        {
                if (empty($_POST["form"]["lang_id"]))
                {
                        ilUtil::sendFailure($this->lng->txt("lang_min_one_language"), true);
                        ilUtil::redirect("setup.php?cmd=lang");
                }

                if (!in_array($_POST["form"]["lang_default"],$_POST["form"]["lang_id"]))
                {
                        ilUtil::sendFailure($this->lng->txt("lang_not_installed_default"), true);
                        ilUtil::redirect("setup.php?cmd=lang");
                }

                $result = $this->lng->installLanguages($_POST["form"]["lang_id"], $_POST["form"]["lang_local"]);

                if (is_array($result))
                {
                        $count = count($result);
                        $txt = "tet";

                        foreach ($result as $key => $lang_key)
                        {
                                $list .= $this->lng->txt("lang_".$lang_key);

                                if ($count > $key + 1)
                                {
                                        $list .= ", ";
                                }
                        }
                }

                $this->setup->getClient()->setDefaultLanguage($_POST["form"]["lang_default"]);
                $message = $this->lng->txt("languages_installed");

                if ($result !== true)
                {
                        $message .= "<br/>(".$this->lng->txt("langs_not_valid_not_installed").": ".$list.")";
                }
                ilUtil::sendInfo($message, true);
                ilUtil::redirect("setup.php?cmd=lang");
        }


        function displayContactData($a_omit_init = false)
        {
                $this->checkDisplayMode("setup_contact_data");
                $settings = $this->setup->getClient()->getAllSettings();

                if (!$a_omit_init)
                {
                        $this->initContactDataForm();
                        $this->getContactValues();
                }
                $this->tpl->setVariable("SETUP_CONTENT", $this->form->getHTML());
                $this->tpl->setVariable("TXT_INFO", $this->lng->txt("info_text_contact"));
                $this->setButtonPrev("lang");

                $check = $this->setup->checkClientContact($this->setup->client);

                $this->setup->getClient()->status["contact"]["status"] = $check["status"];
                $this->setup->getClient()->status["contact"]["comment"] = $check["comment"];

                if ($check["status"])
                {
                        $this->setButtonNext("proxy");
                }

                $this->checkPanelMode();
        }

        public function initContactDataForm()
        {
                global $lng, $ilCtrl;

                include_once("Services/Form/classes/class.ilPropertyFormGUI.php");
                $this->form = new ilPropertyFormGUI();

                // name
                $ti = new ilTextInputGUI($lng->txt("name"), "inst_name");
                $ti->setMaxLength(64);
                $ti->setSize(30);
                $ti->setRequired(true);
                $this->form->addItem($ti);

                // description
                $ti = new ilTextInputGUI($lng->txt("client_info"), "inst_info");
                $ti->setMaxLength(64);
                $ti->setSize(30);
                $this->form->addItem($ti);

                // institution
                $ti = new ilTextInputGUI($lng->txt("client_institution"), "inst_institution");
                $ti->setMaxLength(64);
                $ti->setSize(30);
                $this->form->addItem($ti);

                // contact data
                $sh = new ilFormSectionHeaderGUI();
                $sh->setTitle($lng->txt("contact_data"));
                $this->form->addItem($sh);

                // first name
                $ti = new ilTextInputGUI($lng->txt("firstname"), "admin_firstname");
                $ti->setMaxLength(64);
                $ti->setSize(30);
                $ti->setRequired(true);
                $this->form->addItem($ti);

                // last name
                $ti = new ilTextInputGUI($lng->txt("lastname"), "admin_lastname");
                $ti->setMaxLength(64);
                $ti->setSize(30);
                $ti->setRequired(true);
                $this->form->addItem($ti);

                $fs = array (
                        "title" => array("max" => 64, "size" => 30),
                        "position" => array("max" => 64, "size" => 30),
                        "institution" => array("max" => 200, "size" => 30),
                        "street" => array("max" => 64, "size" => 30),
                        "zipcode" => array("max" => 10, "size" => 5),
                        "city" => array("max" => 64, "size" => 30),
                        "country" => array("max" => 64, "size" => 30),
                        "phone" => array("max" => 64, "size" => 30)
                        );
                foreach ($fs as $f => $op)
                {
                        // field
                        $ti = new ilTextInputGUI($lng->txt($f), "admin_".$f);
                        $ti->setMaxLength($op["max"]);
                        $ti->setSize($op["size"]);
                        $ti->setInfo($lng->txt(""));
                        $this->form->addItem($ti);
                }

                // email
                $ti = new ilEmailInputGUI($lng->txt("email"), "admin_email");
                $ti->setRequired(true);
                $ti->allowRFC822(true);
                $this->form->addItem($ti);

                // feedback recipient
                /*$ti = new ilEmailInputGUI($lng->txt("feedback_recipient"), "feedback_recipient");
                $ti->setInfo($lng->txt("feedback_recipient_info"));
                $ti->setRequired(true);
                $ti->allowRFC822(true);
                $this->form->addItem($ti);*/

                // error recipient
                /*$ti = new ilEmailInputGUI($lng->txt("error_recipient"), "error_recipient");
                $ti->allowRFC822(true);
                $this->form->addItem($ti);*/

                $this->form->addCommandButton("saveContact", $lng->txt("save"));

                $this->form->setTitle($lng->txt("client_data"));
                $this->form->setFormAction("setup.php?cmd=gateway");
        }

        public function getContactValues()
        {

                $settings = $this->setup->getClient()->getAllSettings();

                $values = $settings;

                $values["inst_name"] = ($this->setup->getClient()->getName())
                        ? $this->setup->getClient()->getName()
                        : $this->setup->getClient()->getId();
                $values["inst_info"] = $this->setup->getClient()->getDescription();

                $this->form->setValuesByArray($values);
        }

        public function saveContact()
        {
                global $tpl, $lng, $ilCtrl;

                $this->initContactDataForm();
                if ($this->form->checkInput())
                {
                        $this->setup->getClient()->setSetting("admin_firstname", $_POST["admin_firstname"]);
                        $this->setup->getClient()->setSetting("admin_lastname", $_POST["admin_lastname"]);
                        $this->setup->getClient()->setSetting("admin_title", $_POST["admin_title"]);
                        $this->setup->getClient()->setSetting("admin_position", $_POST["admin_position"]);
                        $this->setup->getClient()->setSetting("admin_institution", $_POST["admin_institution"]);
                        $this->setup->getClient()->setSetting("admin_street", $_POST["admin_street"]);
                        $this->setup->getClient()->setSetting("admin_zipcode", $_POST["admin_zipcode"]);
                        $this->setup->getClient()->setSetting("admin_city", $_POST["admin_city"]);
                        $this->setup->getClient()->setSetting("admin_country", $_POST["admin_country"]);
                        $this->setup->getClient()->setSetting("admin_phone", $_POST["admin_phone"]);
                        $this->setup->getClient()->setSetting("admin_email", $_POST["admin_email"]);
                        $this->setup->getClient()->setSetting("inst_institution", $_POST["inst_institution"]);
                        $this->setup->getClient()->setSetting("inst_name", $_POST["inst_name"]);
                        //$this->setup->getClient()->setSetting("feedback_recipient", $_POST["feedback_recipient"]);
                        //$this->setup->getClient()->setSetting("error_recipient", $_POST["error_recipient"]);

                        // update client.ini
                        $this->setup->getClient()->setName($_POST["inst_name"]);
                        $this->setup->getClient()->setDescription($_POST["inst_info"]);
                        $this->setup->getClient()->ini->write();

                        ilUtil::sendSuccess($this->lng->txt("settings_saved"), true);
                        ilUtil::redirect("setup.php?cmd=displayContactData");
                }

                $this->form->setValuesByPost();
                $this->displayContactData(true);
        }


        function displayNIC($a_omit_init = false)
        {
                $this->checkDisplayMode("nic_registration");
                $settings = $this->setup->getClient()->getAllSettings();
                $nic_key = $this->setup->getClient()->getNICkey();

                // reload settings
                $settings = $this->setup->getClient()->getAllSettings();
//var_dump($settings);
                if ($settings["nic_enabled"] == "1" && $settings["inst_id"] > 0)
                {
                        $this->no_second_nav = true;
                        $this->tpl->setVariable("TXT_INFO",$this->lng->txt("info_text_nic3")." ".$settings["inst_id"].".");
                }
                else
                {
                        // reload settings
                        $settings = $this->setup->getClient()->getAllSettings();

                        $this->tpl->setVariable("TXT_INFO", $this->lng->txt("info_text_nic"));
                        if (!$a_omit_init)
                        {
                                $this->initRegistrationForm();
                                $this->getRegistrationValues();
                        }
                        $this->tpl->setVariable("SETUP_CONTENT", $this->form->getHTML());

                        if (isset($settings["nic_enabled"]))
                        {
                                $this->setup->getClient()->status["nic"]["status"] = true;
                        }

                }

                $this->setButtonPrev("proxy");

                if ($this->setup->getClient()->status["nic"]["status"])
                {
                        $this->setButtonNext("finish","finish");
                }

                $this->checkPanelMode();
        }

        public function initRegistrationForm($a_mode = "edit")
        {
                global $lng, $ilCtrl;

                include_once("Services/Form/classes/class.ilPropertyFormGUI.php");
                $this->form = new ilPropertyFormGUI();

                // registration type
                $radg = new ilRadioGroupInputGUI($lng->txt("nic_registration"), "register");
                $radg->setValue(1);
                $op1 = new ilRadioOption($lng->txt("nic_reg_online"), 1);
                $radg->addOption($op1);
                $op1 = new ilRadioOption($lng->txt("nic_reg_disable"), 0, $lng->txt("nic_reg_disable_info"));
                $radg->addOption($op1);
                $this->form->addItem($radg);

                $this->form->addCommandButton("saveRegistration", $lng->txt("save"));
                $this->form->setFormAction("setup.php?cmd=gateway");
        }

        public function getRegistrationValues()
        {
                $settings = $this->setup->getClient()->getAllSettings();
                $nic_key = $this->setup->getClient()->getNICkey();


                $values = array();

                if (!isset($settings["nic_enabled"]) or $settings["nic_enabled"] == "1")
                {
                        $values["register"] = 1;
                }
                /*elseif ($settings["nic_enabled"] == "2")
                {
                        $this->tpl->setVariable("EMAIL",$checked);
                }*/
                else
                {
                        $values["register"] = 0;
                }

                $this->form->setValuesByArray($values);
        }

        public function saveRegistration()
        {
                global $tpl, $lng, $ilCtrl;

                $this->initRegistrationForm();
                if ($this->form->checkInput())
                {
                        // check register option
                        if ($_POST["register"] == 1)
                        {
                                // update nic
                                $this->setup->getClient()->updateNIC($this->setup->ilias_nic_server);
//var_dump($this->setup->getClient()->nic_status);
                                // online registration failed
                                if (empty($this->setup->getClient()->nic_status[2]))
                                {
                                        $this->setup->getClient()->setSetting("nic_enabled","-1");
                                        ilUtil::sendFailure($this->lng->txt("nic_reg_failed"), true);
                                        ilUtil::redirect("setup.php?cmd=displayNIC");
                                }
                                else
                                {
                                        $this->setup->getClient()->setSetting("inst_id",$this->setup->getClient()->nic_status[2]);
                                        $this->setup->getClient()->setSetting("nic_enabled","1");
                                        $this->setup->getClient()->status["nic"]["status"] = true;
                                        ilUtil::sendSuccess($this->lng->txt("nic_reg_enabled"), true);
                                        ilUtil::redirect("setup.php?cmd=displayNIC");
                                }
                        }
                        /*elseif ($_POST["form"]["register"] == 2)
                        {
                                $nic_by_email = (int) $_POST["form"]["nic_id"];
                                
                                $checksum = md5($nic_key.$nic_by_email);
                                
                                if (!$nic_by_email or $_POST["form"]["nic_checksum"] != $checksum)
                                {
                                        $message = $this->lng->txt("nic_reg_enter_correct_id");     
                                }
                                else
                                {
                                        $this->setup->getClient()->setSetting("inst_id",$nic_by_email);
                                        $this->setup->getClient()->setSetting("nic_enabled","1");
                                        $message = $this->lng->txt("nic_reg_enabled");      
                                }
                        }*/
                        else
                        {
                                $this->setup->getClient()->setSetting("inst_id","0");
                                $this->setup->getClient()->setSetting("nic_enabled","0");
                                ilUtil::sendSuccess($this->lng->txt("nic_reg_disabled"), true);
                                ilUtil::redirect("setup.php?cmd=displayNIC");
                        }
                }

                $this->form->setValuesByPost();
                $this->displayNIC(true);
        }


        function displayTools()
        {
                $this->checkDisplayMode();

                // output
                ilUtil::sendInfo();

                // use property forms and add the settings type switch
                $ctrl_structure_form = $this->initControlStructureForm();
                $settings_type_form = $this->initSettingsTypeForm();
                $mp_ns_form = $this->initTreeImplementationForm();

                $this->tpl->setVariable("SETUP_CONTENT",
                        $ctrl_structure_form->getHTML() . "<br />" .
                        $settings_type_form->getHTML().'<br />'.
                        $mp_ns_form->getHTML());

        }

        public function initTreeImplementationForm()
        {
                include_once ("Services/Form/classes/class.ilPropertyFormGUI.php");
        $form = new ilPropertyFormGUI();

                $form->setId('tree_impl');
                $form->setTitle($this->lng->txt('tree_implementation'));
                $form->setFormAction('setup.php?cmd=gateway');


                $options = new ilRadioGroupInputGUI('', 'tree_impl_type');
                #$options->setRequired(true);

                $set = new ilSetting('common');
                $type = ($set->get('main_tree_impl','ns') == 'ns' ? 'ns' : 'mp');


                $options->setValue($type);

                $ns = new ilRadioOption($this->lng->txt('tree_implementation_ns'), 'ns');
                $options->addOption($ns);

                $mp = new ilRadioOption($this->lng->txt('tree_implementation_mp'),'mp');
                $options->addOption($mp);

                $form->addItem($options);
                $form->addCommandButton('switchTree', $this->lng->txt('tree_implementation_switch_btn'));
                $form->setShowTopButtons(false);

                return $form;

        }

        public function switchTree()
        {
                $set = new ilSetting('common');
                $type = ($set->get('main_tree_impl','ns') == 'ns' ? 'ns' : 'mp');

                if($type == 'ns' and $_POST['tree_impl_type'] == 'mp')
                {
                        // To mp
                        include_once './Services/Tree/classes/class.ilMaterializedPathTree.php';
                        ilMaterializedPathTree::createFromParentReleation();

                        $GLOBALS['ilDB']->dropIndexByFields('tree',array('lft'));
                        $GLOBALS['ilDB']->dropIndexByFields('tree',array('path'));
                        $GLOBALS['ilDB']->addIndex('tree',array('path'),'i4');

                        $set->set('main_tree_impl', 'mp');

                }
                elseif($type == 'mp' and $_POST['tree_impl_type'] == 'ns')
                {
                        include_once './Services/Tree/classes/class.ilTree.php';
                        $GLOBALS['ilSetting'] = $set;
                        $GLOBALS["DIC"]["ilSetting"] = function($c) {
                                return $GLOBALS["ilSetting"];
                        };
                        $tree = new ilTree(1);
                        $tree->renumber(1);

                        $GLOBALS['ilDB']->dropIndexByFields('tree',array('lft'));
                        $GLOBALS['ilDB']->dropIndexByFields('tree',array('path'));
                        $GLOBALS['ilDB']->addIndex('tree',array('lft'),'i4');

                        $set->set('main_tree_impl', 'ns');
                }

                ilUtil::sendInfo($this->lng->txt("tree_implementation_switched"), true);
                $this->displayTools();
        }

        function initControlStructureForm()
        {
                include_once ("Services/Form/classes/class.ilPropertyFormGUI.php");
        $form = new ilPropertyFormGUI();

                $form->setId("control_structure");
                $form->setTitle($this->lng->txt("ctrl_structure"));
                $form->setFormAction("setup.php?cmd=gateway");

                $ilDB = $this->setup->getClient()->db;
                $cset = $ilDB->query("SELECT count(*) as cnt FROM ctrl_calls");
                $crec = $ilDB->fetchAssoc($cset);

                $item = new ilCustomInputGUI($this->lng->txt("ctrl_structure_reload"));
                if ($crec["cnt"] == 0)
                {
                        $item->setInfo($this->lng->txt("ctrl_missing_desc"));
                }
                else
                {
                        $item->setInfo($this->lng->txt("ctrl_structure_desc"));
                }
                $form->addItem($item);

                $form->addCommandButton("reloadStructure", $this->lng->txt("reload"));
                return $form;
        }


        function reloadControlStructure()
        {
                global $ilCtrlStructureReader;

                if (!$this->setup->getClient()->db_installed)
                {
                        ilUtil::sendInfo($this->lng->txt("no_db"), true);
                        $this->displayTools();
                        return;
                }
                
                // referencing does not work in dbupdate-script
                $GLOBALS["ilDB"] = $this->setup->getClient()->getDB();
                $GLOBALS["DIC"]["ilDB"] = function($c) {
                        return $GLOBALS["ilDB"];
                };
// BEGIN WebDAV
                // read module and service information into db
                require_once "./setup/classes/class.ilModuleReader.php";
                require_once "./setup/classes/class.ilServiceReader.php";
                require_once "./setup/classes/class.ilCtrlStructureReader.php";

                require_once "./Services/Component/classes/class.ilModule.php";
                require_once "./Services/Component/classes/class.ilService.php";
                $modules = ilModule::getAvailableCoreModules();
                $services = ilService::getAvailableCoreServices();

                // clear tables
                $mr = new ilModuleReader("", "", "");
                $mr->clearTables();
                foreach($modules as $module)
                {
                        $mr = new ilModuleReader(ILIAS_ABSOLUTE_PATH."/Modules/".$module["subdir"]."/module.xml",
                                $module["subdir"], "Modules");
                        $mr->getModules();
                        unset($mr);
                }

                // clear tables
                $sr = new ilServiceReader("", "", "");
                $sr->clearTables();
                foreach($services as $service)
                {
                        $sr = new ilServiceReader(ILIAS_ABSOLUTE_PATH."/Services/".$service["subdir"]."/service.xml",
                                $service["subdir"], "Services");
                        $sr->getServices();
                        unset($sr);
                }
// END WebDAV

                $ilCtrlStructureReader->readStructure(true);
                ilUtil::sendInfo($this->lng->txt("ctrl_structure_reloaded"), true);
                $this->displayTools();
        }

        function initSettingsTypeForm()
        {
                include_once("./Services/Administration/classes/class.ilSetting.php");
                $type = ilSetting::_getValueType();

                include_once ("Services/Form/classes/class.ilPropertyFormGUI.php");
        $form = new ilPropertyFormGUI();

                $form->setId("settings_type");
                $form->setTitle($this->lng->txt("settings_type"));
                $form->setFormAction("setup.php?cmd=gateway");

                $item = new ilNonEditableValueGUI($this->lng->txt('settings_type_current'));
                $item->setValue(strtoupper($type));

                if ($type == "clob")
                {
                        $item->setInfo($this->lng->txt('settings_info_clob'));
            $form->addCommandButton("showLongerSettings", $this->lng->txt("settings_show_longer"));
            $form->addCommandButton("changeSettingsType", $this->lng->txt("settings_change_text"));
            }
                else
                {
                        $item->setInfo($this->lng->txt('settings_info_text'));
                $form->addCommandButton("changeSettingsType", $this->lng->txt("settings_change_clob"));
                }
                $form->addItem($item);

                if (is_array($this->longer_settings))
                {
                        $item = new ilCustomInputGUI($this->lng->txt('settings_longer_values'));

                        if (count($this->longer_settings))
                        {
                    foreach ($this->longer_settings as $row)
                                {
                        $subitem = new ilCustomInputGUI(sprintf($this->lng->txt('settings_key_info'), $row['module'], $row['keyword']));
                                        $subitem->setInfo($row['value']);
                                        $item->addSubItem($subitem);
                    }
                        }
                        else
                        {
                    $item->setHTML($this->lng->txt('settings_no_longer_values'));
                }
                        $form->addItem($item);
            }

                return $form;
        }


        function changeSettingsType()
        {
                include_once("./Services/Administration/classes/class.ilSetting.php");
                $old_type = ilSetting::_getValueType();

                if ($old_type == "clob")
                {
                        $longer_settings = ilSetting::_getLongerSettings();
                        if (count($longer_settings))
                        {
                    $this->longer_settings = $longer_settings;
                ilUtil::sendFailure($this->lng->txt("settings_too_long"));
                        }
                        else
                        {
                        $changed = ilSetting::_changeValueType('text');
                }
            }
                else
                {
                $changed = ilSetting::_changeValueType('clob');
            }

                if ($changed)
                {
                        ilUtil::sendInfo($this->lng->txt("settings_type_changed"));
                }

                $this->displayTools();
        }


        function showLongerSettings()
        {
                include_once("./Services/Administration/classes/class.ilSetting.php");
                $this->longer_settings = ilSetting::_getLongerSettings();
                $this->displayTools();
        }
        
        protected function getMasterPasswordForm()
        {
                require_once 'Services/Form/classes/class.ilPropertyFormGUI.php';
                $form = new \ilPropertyFormGUI();
                $form->setTitle($this->lng->txt('change_password'));

                $currentPassword = new \ilPasswordInputGUI($this->lng->txt('set_oldpasswd'), 'pass_old');
                $currentPassword->setDisableHtmlAutoComplete(true);
                $currentPassword->setValidateAuthPost(false);
                $currentPassword->setSkipSyntaxCheck(true);
                $currentPassword->setRequired(true);
                $currentPassword->setRetype(false);
                $form->addItem($currentPassword);

                $newPassword = new \ilPasswordInputGUI($this->lng->txt('set_newpasswd'), 'pass');
                $newPassword->setDisableHtmlAutoComplete(true);
                $newPassword->setValidateAuthPost(false);
                $newPassword->setSkipSyntaxCheck(true);
                $newPassword->setRequired(true);
                $newPassword->setRetype(true);
                $form->addItem($newPassword);

                $form->setFormAction('setup.php?cmd=gateway');
                $form->addCommandButton('savemasterpassword', $this->lng->txt('save'));

                return $form;
        }

        protected function saveMasterPassword()
        {
                $form = $this->getMasterPasswordForm();
                $isValid = $form->checkInput();
                $form->setValuesByPost();

                if (!$isValid) {
                        return $this->changeMasterPassword($form);
                }

                $cp = $form->getInput('pass_old');
                $np = $form->getInput('pass');

                if (md5($cp) != $this->setup->getPassword()) {
                        \ilUtil::sendFailure($this->lng->txt('password_old_wrong'));
                        return $this->changeMasterPassword($form);
                }

                if (!$this->setup->setPassword($np)) {
                        \ilUtil::sendFailure($this->lng->txt('save_error'));
                        return $this->changeMasterPassword($form);
                }

                \ilUtil::sendInfo($this->lng->txt('password_changed'), true);
                \ilUtil::redirect("setup.php");
        }

        protected function changeMasterPassword(\ilPropertyFormGUI $form = null)
        {
                if (null === $form) {
                        $form = $this->getMasterPasswordForm();
                }

                $this->tpl->addBlockFile('CONTENT', 'content', 'tpl.std_layout.html', 'setup');
                $this->tpl->setVariable('TXT_HEADER', $this->lng->txt('password_new_master'));
                $this->tpl->setVariable('TXT_INFO', $this->lng->txt('info_text_password'));
                $this->tpl->setVariable('SETUP_CONTENT', $form->getHTML());
        }

        function displayFinishSetup()
        {
                $this->checkDisplayMode("finish_setup");
                $this->no_second_nav = true;
//echo "<b>1</b>";
                if ($this->validateSetup())
                {
                        $txt_info = $this->lng->txt("info_text_finish1")."<br /><br />".
                                "<p>".$this->lng->txt("user").": <b>root</b><br />".
                                $this->lng->txt("password").": <b>homer</b></p>";
                        $this->setButtonNext("login_new","login");
//echo "<b>2</b>";
                        $this->setup->getClient()->reconnect();         // if this is not done, the writing of
                                                                                        // the setup_ok fails (with MDB2 and a larger
                                                                                        // client list), alex 17.1.2008
                        $this->setup->getClient()->setSetting("setup_ok",1);
//$this->setup->getClient()->setSetting("zzz", "Z");
//echo "<b>3</b>";
                        $this->setup->getClient()->status["finish"]["status"] = true;
//echo "<b>4</b>";
                }
                else
                {
                        $txt_info = $this->lng->txt("info_text_finish2");
                }

//echo "<b>5</b>";
                // output
                $this->tpl->addBlockFile("SETUP_CONTENT","setup_content","tpl.clientsetup_finish.html", "setup");
                $this->tpl->setVariable("TXT_INFO",$txt_info);

                $this->setButtonPrev("nic");
//echo "<b>6</b>";
                $this->checkPanelMode();
//echo "<b>7</b>";
        }

        function displayDeleteConfirmation()
        {
                $this->checkDisplayMode();

                // formular sent
                if ($_POST["form"]["delete"])
                {
                        $ini = true;
                        $db = false;
                        $files = false;

                        /* disabled
                        switch ($_POST["form"]["delete"])
                        {
                                case 1:
                                        $ini = true;
                                        break;
                        
                                case 2:
                                        $ini = true;
                                        $db = true;
                                        break;

                                case 3:
                                        $ini = true;
                                        $db = true;
                                        $files = true;
                                        break;      
                        }
                        */

                        $msg = $this->setup->getClient()->delete($ini,$db,$files);

                        ilUtil::sendInfo($this->lng->txt("client_deleted"),true);
                        ilUtil::redirect("setup.php");
                }

                $this->tpl->setVariable("TXT_INFO", $this->lng->txt("info_text_delete"));

                // output
                $this->tpl->addBlockFile("SETUP_CONTENT","setup_content","tpl.form_delete_client.html", "setup");

                // delete panel
                $this->tpl->setVariable("FORMACTION", "setup.php?cmd=gateway");
                $this->tpl->setVariable("TXT_DELETE", $this->lng->txt("delete"));
                $this->tpl->setVariable("TXT_DELETE_CONFIRM", $this->lng->txt("delete_confirm"));
                $this->tpl->setVariable("TXT_DELETE_INFO", $this->lng->txt("delete_info"));

                $this->checkPanelMode();
        }

        function changeAccessMode($a_back)
        {
                if ($this->setup->getClient()->status["finish"]["status"])
                {
                        $val = ($this->setup->getClient()->ini->readVariable("client","access")) ? "0" : true;
                        $this->setup->getClient()->ini->setVariable("client","access",$val);
                        $this->setup->getClient()->ini->write();
                        $message = "client_access_mode_changed";
                }
                else
                {
                        $message = "client_setup_not_finished";
                }

                ilUtil::sendInfo($this->lng->txt($message),true);

                ilUtil::redirect("setup.php?cmd=".$a_back);
        }

        function changeDefaultClient()
        {
                if ($_POST["form"])
                {
                        $client = new ilClient($_POST["form"]["default"], $this->setup->db_connections);

                        if (!$client->init())
                        {
                                \ilUtil::sendFailure($this->lng->txt("no_valid_client_id"), true);
                                \ilUtil::redirect("setup.php?cmd=clientlist");
                        }

                        $status = $this->setup->getStatus($client);

                        if ($status["finish"]["status"])
                        {
                                $this->setup->ini->setVariable("clients","default",$client->getId());
                                $this->setup->ini->write();
                                $message = "default_client_changed";
                        }
                        else
                        {
                                $message = "client_setup_not_finished";
                        }
                }

                ilUtil::sendInfo($this->lng->txt($message),true);

                ilUtil::redirect("setup.php");
        }

        function validateSetup()
        {
                foreach ($this->setup->getClient()->status as $key => $val)
                {
                        if ($key != "finish" and $key != "access")
                        {
                                if ($val["status"] != true)
                                {
                                        return false;
                                }
                        }
                }

//$this->setup->getClient()->setSetting("zzz", "V");
                $clientlist = new ilClientList($this->setup->db_connections);
//$this->setup->getClient()->setSetting("zzz", "W");
                $list = $clientlist->getClients();
//$this->setup->getClient()->setSetting("zzz", "X");
                if (count($list) == 1)
                {
                        $this->setup->ini->setVariable("clients","default",$this->setup->getClient()->getId());
                        $this->setup->ini->write();

                        $this->setup->getClient()->ini->setVariable("client","access",1);
                        $this->setup->getClient()->ini->write();
                }
//$this->setup->getClient()->setSetting("zzz", "Y");
                return true;
        }

        function jumpToFirstUnfinishedSetupStep()
        {
                if (!$this->setup->getClient()->status["db"]["status"])
                {
                        $this->cmd = "db";
                        ilUtil::sendInfo($this->lng->txt("finish_initial_setup_first"),true);
                        $this->displayDatabase();
                }
                elseif (!$this->setup->getClient()->status["lang"]["status"])
                {
                        $this->cmd = "lang";
                        ilUtil::sendInfo($this->lng->txt("finish_initial_setup_first"),true);
                        $this->displayLanguages();
                }
                elseif (!$this->setup->getClient()->status["contact"]["status"])
                {
                        $this->cmd = "contact";
                        ilUtil::sendInfo($this->lng->txt("finish_initial_setup_first"),true);
                        $this->displayContactData();
                }
                elseif(!$this->setup->getClient()->status['proxy']['status'])
                {
                        $this->cmd = "proxy";
                        ilUtil::sendInfo($this->lng->txt("finish_initial_setup_first"),true);
                        $this->displayProxy();
                }
                elseif (!$this->setup->getClient()->status["nic"]["status"])
                {
                        $this->cmd = "nic";
                        ilUtil::sendInfo($this->lng->txt("finish_initial_setup_first"),true);
                        $this->displayNIC();
                }
                elseif (!$this->setup->getClient()->status["finish"]["status"])
                {
                        $this->cmd = "finish";
                        ilUtil::sendInfo($this->lng->txt("finish_initial_setup_first"),true);
                        $this->displayFinishSetup();
                }
                else
                {
                        return false;
                }
        }

        function toggleClientList()
        {
                if ($this->setup->ini->readVariable("clients","list"))
                {
                        $this->setup->ini->setVariable("clients","list","0");
                        $this->setup->ini->write();
                        ilUtil::sendInfo($this->lng->txt("list_disabled"),true);
                }
                else
                {
                        $this->setup->ini->setVariable("clients","list","1");
                        $this->setup->ini->write();
                        ilUtil::sendInfo($this->lng->txt("list_enabled"),true);
                }

                ilUtil::redirect("setup.php");
        }


        function applyCustomUpdates()
        {
                global $ilCtrlStructureReader;

                $ilCtrlStructureReader->setIniFile($this->setup->getClient()->ini);

                include_once "./Services/Database/classes/class.ilDBUpdate.php";
                include_once "./Services/AccessControl/classes/class.ilRbacAdmin.php";
                include_once "./Services/AccessControl/classes/class.ilRbacReview.php";
                include_once "./Services/AccessControl/classes/class.ilRbacSystem.php";
                include_once "./Services/Tree/classes/class.ilTree.php";
                include_once "./Services/Xml/classes/class.ilSaxParser.php";
                include_once "./Services/Object/classes/class.ilObjectDefinition.php";

                // referencing db handler in language class
                $ilDB = $this->setup->getClient()->db;
                $this->lng->setDbHandler($ilDB);

                // run dbupdate
                $dbupdate = new ilDBUpdate($ilDB);
                $dbupdate->applyCustomUpdates();

                if ($dbupdate->updateMsg == "no_changes")
                {
                        $message = $this->lng->txt("no_changes").". ".$this->lng->txt("database_is_uptodate");
                }
                else
                {
                        $sep = "";
                        foreach ($dbupdate->updateMsg as $row)
                        {
                                if ($row["msg"] == "update_applied")
                                {
                                        $a_message.= $sep.$row["nr"];
                                        $sep = ", ";
                                }
                                else
                                {
                                        $e_message.= "<br/>".$this->lng->txt($row["msg"]).": ".$row["nr"];
                                }
                        }
                        if ($a_message != "")
                        {
                                $a_message = $this->lng->txt("update_applied").": ".$a_message;
                        }
                }

                ilUtil::sendInfo($a_message.$e_message, true);
                ilUtil::redirect("setup.php?cmd=displayDatabase");
        }

        function cloneInitForm()
        {
                global $lng, $ilCtrl;

                $this->checkDisplayMode();

                include_once("Services/Form/classes/class.ilPropertyFormGUI.php");
                $this->form = new ilPropertyFormGUI();

                $this->form->setId("clone_form");
                $this->form->setFormAction("setup.php?cmd=gateway");

                if ($this->setup->getClient()->status["access"]["status"] === false and stripos($this->setup->getClient()->getName(),"master") === false and $this->setup->getClient()->getdbType() == "mysql" and $this->setup->getClient()->db_exists )
                {
                        $this->form->setTitle($this->lng->txt("clone_source"));
                        $clients = array();
                        $clientlist = new ilClientList($this->setup->db_connections);
                        $list = $clientlist->getClients();
                        $clientlistarray = array();

                        foreach ($list as $key => $client){
                                if ((strcmp($key, $this->setup->getClient()->getId()) != '0') && ($client->getDbType() == 'mysql')) {  // You cannot clone yourself
                                        $clientlistarray[$client->id] = $client->id;
                                }
                        }

                        $si = new ilSelectInputGUI($lng->txt("clone_selectsource"), "source");

                        $si->setOptions(array_merge(
                                array("" => "-- ".$lng->txt("please_select")." --"),
                                $clientlistarray));
                        $si->setRequired(true);
                        $this->form->addItem($si);

                        $cb = new ilCheckboxInputGUI($lng->txt("clone_areyousure"), "iamsure");
                        $cb->setRequired(true);
                        $this->form->addItem($cb);

                        $this->form->addCommandButton("cloneSaveSource", $lng->txt("cloneit"));
                } else {
                        $disabledmessage = "<h1>" . $this->lng->txt("clone_disabledmessage") ."</h1><br>";
                        if (!$this->setup->getClient()->status["access"]["status"] === false) {
                                $disabledmessage .= $this->lng->txt("clone_clientnotdisabled") . "<br>";
                        }
                        if (!stripos($this->setup->getClient()->getName(),"aster") === false) {
                                $disabledmessage .= $this->lng->txt("clone_clientismaster") . "<br>";
                        }
                        if ($this->setup->getClient()->getdbType() != "mysql") {
                                $disabledmessage .= $this->lng->txt("clone_clientisnotmysql") . "<br>";
                        }
                        if (!$this->setup->getClient()->db_exists) {
                                $disabledmessage .= $this->lng->txt("clone_clientnodatabase") . "<br>";
                        }
                        $this->form->setTitle($disabledmessage);
                }
        }

        function cloneSelectSource() {

                if (!$this->setup->isAdmin())
                {
                        return;
                }

                $this->cloneInitForm();
                $this->form->setValuesByPost();
                $this->tpl->setVariable("TXT_INFO", $this->lng->txt("info_text_clone"));
                $this->tpl->setVariable("SETUP_CONTENT", $this->form->getHTML());
        }

        function cloneSaveSource()
        {
                global $lng, $ilCtrl;

                if (!$this->setup->isAdmin())
                {
                        return;
                }

                $this->cloneInitForm();

                if ($this->form->checkInput())
                {
                        $error = '';

                        if ($this->form->getInput("iamsure") != "1") {
                                $error = $this->lng->txt('clone_youmustcheckiamsure');
                        }

                        if (!$this->setup->cloneFromSource($this->form->getInput("source"))) {
                                $error = $this->lng->txt('clone_error') . ' -> ' . $this->setup->error;
                        }

                        if (0 === strlen($error)) {
                                \ilUtil::sendInfo($this->lng->txt('client_cloned'));
                        } else {
                                \ilUtil::sendFailure($error);
                        }
                }
                $this->form->setValuesByPost();
                $this->tpl->setVariable("TXT_INFO", $this->lng->txt("info_text_clone"));
                $this->tpl->setVariable("SETUP_CONTENT", $this->form->getHTML());
        }

        public function displayProxy($a_omit_init = false)
        {
                $this->checkDisplayMode("proxy");
                $settings = $this->setup->getClient()->getAllSettings();

                if (!$a_omit_init)
                {
                        include_once("./Services/Administration/classes/class.ilSetting.php");
                        $this->initProxyForm();
                        $this->form->setValuesByArray(array(
                                'proxy_status' => (bool)$settings['proxy_status'],
                                'proxy_host' => $settings['proxy_host'],
                                'proxy_port' => $settings['proxy_port']
                        ));
                        if((bool)$settings['proxy_status'])
                        {
                                $this->setup->printProxyStatus($this->setup->client);
                        }
                }
                $this->tpl->setVariable("SETUP_CONTENT", $this->form->getHTML());
                $this->tpl->setVariable("TXT_INFO", $this->lng->txt("info_text_proxy"));


                $check = $this->setup->checkClientProxySettings($this->setup->client);

                $this->setup->getClient()->status["proxy"]["status"] = $check["status"];
                $this->setup->getClient()->status["proxy"]["comment"] = $check["comment"];
                $this->setup->getClient()->status["proxy"]["text"] = $check["comment"];

                if ($check["status"])
                {
                        $this->setButtonNext("nic");
                }

                $this->setButtonPrev("contact");
                $this->checkPanelMode();
        }
        private function initProxyForm()
        {
                global $lng;

                include_once('Services/Form/classes/class.ilPropertyFormGUI.php');
                $this->form = new ilPropertyFormGUI();
                $this->form->setFormAction("setup.php?cmd=gateway");

                // Proxy status
                $proxs = new ilCheckboxInputGUI($lng->txt('proxy_status'), 'proxy_status');
                $proxs->setInfo($lng->txt('proxy_status_info'));
                $proxs->setValue(1);
                $this->form->addItem($proxs);

                // Proxy availability
                $proxa = new ilCustomInputGUI('', 'proxy_availability');
                $proxs->addSubItem($proxa);

                // Proxy
                $prox = new ilTextInputGUI($lng->txt('proxy_host'), 'proxy_host');
                $prox->setInfo($lng->txt('proxy_host_info'));
                $proxs->addSubItem($prox);

                // Proxy Port
                $proxp = new ilTextInputGUI($lng->txt('proxy_port'), 'proxy_port');
                $proxp->setInfo($lng->txt('proxy_port_info'));
                $proxp->setSize(10);
                $proxp->setMaxLength(10);
                $proxs->addSubItem($proxp);

                // save and cancel commands
                $this->form->addCommandButton('saveProxy', $lng->txt('save'));
        }

        public function saveProxy()
        {
                global $lng;

                $this->initProxyForm();
                $isFormValid = $this->form->checkInput();

                $new_settings['proxy_status'] = (int)$this->form->getInput('proxy_status');
                $new_settings['proxy_host'] = trim($this->form->getInput('proxy_host'));
                $new_settings['proxy_port'] = trim($this->form->getInput('proxy_port'));

                if($isFormValid)
                {
                        if($new_settings['proxy_status'] == true)
                        {
                                if(!strlen($new_settings['proxy_host']))
                                {
                                        $isFormValid = false;
                                        $this->form->getItemByPostVar('proxy_host')->setAlert($lng->txt('msg_input_is_required'));
                                }
                                if(!strlen($new_settings['proxy_port']))
                                {
                                        $isFormValid = false;
                                        $this->form->getItemByPostVar('proxy_port')->setAlert($lng->txt('msg_input_is_required'));
                                }
                                if(!preg_match('/[0-9]{1,}/', $new_settings['proxy_port']) ||
                                        $new_settings['proxy_port'] < 0 ||
                                        $new_settings['proxy_port'] > 65535)
                                {
                                        $isFormValid = false;
                                        $this->form->getItemByPostVar('proxy_port')->setAlert($lng->txt('proxy_port_numeric'));
                                }
                        }

                        if($isFormValid)
                        {
                                $this->setup->saveProxySettings($new_settings);

                                ilUtil::sendSuccess($lng->txt('saved_successfully'));
                                $settings = $this->setup->getClient()->getAllSettings();
                                if($settings['proxy_status'] == true)
                                {
                                        $this->setup->printProxyStatus($this->setup->client);
                                }
                        }
                        else
                        {
                                ilUtil::sendFailure($lng->txt('form_input_not_valid'));
                        }
                }

                $this->form->setValuesByPost();
                $this->tpl->setVariable("SETUP_CONTENT", $this->form->getHTML());


                $this->displayProxy(true);
        }
} // END class.ilSetupGUI
?>