class.ilPersonalSettingsGUI.php

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

class ilPersonalSettingsGUI
{
    var $tpl;
    var $lng;
    var $ilias;
        var $ctrl;

    function __construct()
    {
        global $ilias, $tpl, $lng, $rbacsystem, $ilCtrl;

                include_once './Services/User/classes/class.ilUserDefinedFields.php';
                $this->user_defined_fields =& ilUserDefinedFields::_getInstance();

        $this->tpl =& $tpl;
        $this->lng =& $lng;
        $this->ilias =& $ilias;
                $this->ctrl =& $ilCtrl;
                $this->settings = $ilias->getAllSettings();
//              $lng->loadLanguageModule("jsmath");
                $lng->loadLanguageModule('chatroom');
                $lng->loadLanguageModule('chatroom_adm');
                $this->upload_error = "";
                $this->password_error = "";
                $lng->loadLanguageModule("user");
                $ilCtrl->saveParameter($this, "user_page");
        }

        function &executeCommand()
        {
                global $ilUser, $ilCtrl, $tpl, $ilTabs, $lng;
                
                $next_class = $this->ctrl->getNextClass();

                switch($next_class)
                {
                        
                        default:
                                $cmd = $this->ctrl->getCmd("showGeneralSettings");
                                $this->$cmd();
                                break;
                }
                return true;
        }

        public function saveMailOptions()
        {
                global $ilUser, $lng, $ilTabs, $ilSetting, $rbacsystem;

                include_once 'Services/Mail/classes/class.ilMailGlobalServices.php';
                if(!$rbacsystem->checkAccess('internal_mail', ilMailGlobalServices::getMailObjectRefId()))
                {
                        $this->ilias->raiseError($lng->txt('permission_denied'), $this->ilias->error_obj->MESSAGE);
                }
                
                $lng->loadLanguageModule('mail');
                
                $this->__initSubTabs('showMailOptions');
                $ilTabs->activateTab('mail_settings');
                
                $this->setHeader();
                
                require_once 'Services/Mail/classes/class.ilMailOptions.php';
                $mailOptions = new ilMailOptions($ilUser->getId());
                if($ilSetting->get('usr_settings_hide_mail_incoming_mail') != '1' && 
                   $ilSetting->get('usr_settings_disable_mail_incoming_mail') != '1')
                {
                        $incoming_type = (int)$_POST['incoming_type'];
                }
                else
                {
                        $incoming_type = $mailOptions->getIncomingType();
                }                       
                
                $this->initMailOptionsForm();
                if($this->form->checkInput())
                {               
                        $mailOptions->updateOptions(
                                ilUtil::stripSlashes($_POST['signature']),
                                (int)$_POST['linebreak'],
                                $incoming_type,
                                (int)$_POST['cronjob_notification']
                        );
                        
                        ilUtil::sendSuccess($lng->txt('mail_options_saved'));                   
                }
                
                if(!isset($_POST['incoming_type']))
                {
                        $_POST['incoming_type'] = $mailOptions->getIncomingType();
                }
                
                $this->form->setValuesByPost();
                
                $this->tpl->setContent($this->form->getHTML());
                $this->tpl->show();
        }

        private function initMailOptionsForm()
        {
                global $ilCtrl, $ilSetting, $lng, $ilUser;      
                
                include_once 'Services/Form/classes/class.ilPropertyFormGUI.php';
                $this->form = new ilPropertyFormGUI();
                
                $this->form->setFormAction($ilCtrl->getFormAction($this, 'saveMailOptions'));
                $this->form->setTitle($lng->txt('mail_settings'));
                        
                // BEGIN INCOMING
                include_once 'Services/Mail/classes/class.ilMailOptions.php';
                if($ilSetting->get('usr_settings_hide_mail_incoming_mail') != '1')
                {
                        $options = array(
                                IL_MAIL_LOCAL => $this->lng->txt('mail_incoming_local'), 
                                IL_MAIL_EMAIL => $this->lng->txt('mail_incoming_smtp'),
                                IL_MAIL_BOTH => $this->lng->txt('mail_incoming_both')
                        );
                        $si = new ilSelectInputGUI($lng->txt('mail_incoming'), 'incoming_type');
                        $si->setOptions($options);
                        if(!strlen(ilObjUser::_lookupEmail($ilUser->getId())) ||
                           $ilSetting->get('usr_settings_disable_mail_incoming_mail') == '1')
                        {
                                $si->setDisabled(true); 
                        }
                        $this->form->addItem($si);
                }
                
                // BEGIN LINEBREAK_OPTIONS
                $options = array();
                for($i = 50; $i <= 80; $i++)
                {
                        $options[$i] = $i; 
                }       
                $si = new ilSelectInputGUI($lng->txt('linebreak'), 'linebreak');
                $si->setOptions($options);                      
                $this->form->addItem($si);
                
                // BEGIN SIGNATURE
                $ta = new ilTextAreaInputGUI($lng->txt('signature'), 'signature');
                $ta->setRows(10);
                $ta->setCols(60);                       
                $this->form->addItem($ta);
                
                // BEGIN CRONJOB NOTIFICATION
                if($ilSetting->get('mail_notification'))
                {
                        $cb = new ilCheckboxInputGUI($lng->txt('cron_mail_notification'), 'cronjob_notification');                      
                        $cb->setInfo($lng->txt('mail_cronjob_notification_info'));
                        $cb->setValue(1);
                        $this->form->addItem($cb);
                }               
                
                $this->form->addCommandButton('saveMailOptions', $lng->txt('save'));
        }
        
        private function setMailOptionsValuesByDB()
        {
                global $ilUser, $ilSetting;             
                
                require_once 'Services/Mail/classes/class.ilMailOptions.php';
                $mailOptions = new ilMailOptions($ilUser->getId());
                
                $data = array(
                        'linebreak' => $mailOptions->getLinebreak(),
                        'signature' => $mailOptions->getSignature(),
                        'cronjob_notification' => $mailOptions->getCronjobNotification()
                );
                
                if($ilSetting->get('usr_settings_hide_mail_incoming_mail') != '1')
                {               
                        $data['incoming_type'] = $mailOptions->getIncomingType();
                }
                
                $this->form->setValuesByArray($data);
        }

        public function showMailOptions()
        {
                global $ilTabs, $lng, $rbacsystem;

                include_once 'Services/Mail/classes/class.ilMailGlobalServices.php';
                if(!$rbacsystem->checkAccess('internal_mail', ilMailGlobalServices::getMailObjectRefId()))
                {
                        $this->ilias->raiseError($lng->txt('permission_denied'), $this->ilias->error_obj->MESSAGE);
                }
                
                $lng->loadLanguageModule('mail');
                
                $this->__initSubTabs('showMailOptions');
                $ilTabs->activateTab('mail_settings');

                $this->setHeader();

                $this->initMailOptionsForm();
                $this->setMailOptionsValuesByDB();

                $this->tpl->setContent($this->form->getHTML());
                $this->tpl->show();
        }

/*      function showjsMath()
        {
                global $lng, $ilCtrl, $tpl, $ilUser;

                $this->__initSubTabs("showjsMath");
                $this->setHeader();

                include_once("./Services/Form/classes/class.ilPropertyFormGUI.php");
                $form = new ilPropertyFormGUI();
                $form->setFormAction($ilCtrl->getFormAction($this));
                $form->setTitle($lng->txt("jsmath_settings"));

                // Enable jsMath
                include_once "./Services/Administration/classes/class.ilSetting.php";
                $jsMathSetting = new ilSetting("jsMath");
                $enable = new ilCheckboxInputGUI($lng->txt("jsmath_enable_user"), "enable");
                $checked = ($ilUser->getPref("js_math") === FALSE) ? $jsMathSetting->get("makedefault") : $ilUser->getPref("js_math");
                $enable->setChecked($checked);
                $enable->setInfo($lng->txt("jsmath_enable_user_desc"));
                $form->addItem($enable);

                $form->addCommandButton("savejsMath", $lng->txt("save"));
                $form->addCommandButton("showjsMath", $lng->txt("cancel"));

                $this->tpl->setVariable("ADM_CONTENT", $form->getHTML());
                $this->tpl->show();
        }

        function savejsMath()
        {
                global $ilCtrl, $ilUser;

                include_once "./Services/Administration/classes/class.ilSetting.php";
                $jsMathSetting = new ilSetting("jsMath");
                if ($jsMathSetting->get("enable"))
                {
                        if ($_POST["enable"])
                        {
                                $ilUser->writePref("js_math", "1");
                        }
                        else
                        {
                                $ilUser->writePref("js_math", "0");
                        }
                }
                $ilCtrl->redirect($this, "showjsMath");
        }
*/
        // init sub tabs
        function __initSubTabs($a_cmd)
        {
                global $ilTabs, $ilSetting, $ilHelp, $rbacsystem, $ilUser;

                $ilHelp->setScreenIdComponent("user");
                
                $showPassword = ($a_cmd == 'showPassword') ? true : false;
                $showGeneralSettings = ($a_cmd == 'showGeneralSettings') ? true : false;
                $showMailOptions = ($a_cmd == 'showMailOptions') ? true : false;
//              $showjsMath = ($a_cmd == 'showjsMath') ? true : false;
                $showChatOptions = ($a_cmd == 'showChatOptions') ? true : false;

                // old profile

                // general settings
                $ilTabs->addTarget("general_settings", $this->ctrl->getLinkTarget($this, "showGeneralSettings"),
                        "", "", "", $showGeneralSettings);

                // password
                if ($this->allowPasswordChange())
                {
                        $ilTabs->addTarget("password", $this->ctrl->getLinkTarget($this, "showPassword"),
                                "", "", "", $showPassword);
                }

                include_once 'Services/Mail/classes/class.ilMailGlobalServices.php';
                if($rbacsystem->checkAccess('internal_mail', ilMailGlobalServices::getMailObjectRefId()))
                {
                        $ilTabs->addTarget("mail_settings", $this->ctrl->getLinkTarget($this, "showMailOptions"), "", "", "", $showMailOptions);
                }

                $chatSettings = new ilSetting('chatroom');
                $notificationSettings = new ilSetting('notifications');
                if(
                        $chatSettings->get('chat_enabled', false) &&
                        $notificationSettings->get('enable_osd', false) &&
                        $chatSettings->get('play_invitation_sound', false)
                )
                {               
                        $ilTabs->addTarget('chat_settings', $this->ctrl->getLinkTarget($this, 'showChatOptions'), '', '', '', $showChatOptions);
                }

                include_once "./Services/Administration/classes/class.ilSetting.php";
/*              $jsMathSetting = new ilSetting("jsMath");
                if ($jsMathSetting->get("enable"))
                {
                        $ilTabs->addTarget("jsmath_extt_jsmath", $this->ctrl->getLinkTarget($this, "showjsMath"),
                                                                         "", "", "", $showjsMath);
                }*/
                
                if((bool)$ilSetting->get('user_delete_own_account') &&
                        $ilUser->getId() != SYSTEM_USER_ID)
                {
                        $ilTabs->addTab("delacc", $this->lng->txt('user_delete_own_account'),
                                $this->ctrl->getLinkTarget($this, "deleteOwnAccount1"));
                }
        }

        private function getChatSettingsForm()
        {
                global $lng;

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

                $form->setFormAction($this->ctrl->getFormAction($this, 'saveChatOptions'));
                $form->setTitle($lng->txt("chat_settings"));

                $chb = new ilCheckboxInputGUI('', 'play_invitation_sound');
                $chb->setOptionTitle($this->lng->txt('play_invitation_sound'));
                $form->addItem($chb);

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

                return $form;
        }

        public function saveChatOptions()
        {
                global $ilUser, $lng, $ilCtrl;

                $chatSettings         = new ilSetting('chatroom');
                $notificationSettings = new ilSetting('notifications');
                if(!(
                        $chatSettings->get('chat_enabled', false) &&
                        $notificationSettings->get('enable_osd', false) &&
                        $chatSettings->get('play_invitation_sound', false)
                )
                )
                {
                        $ilCtrl->redirect($this);
                }

                $form = $this->getChatSettingsForm();
                if(!$form->checkInput())
                {
                        $this->showChatOptions($form);
                        return;
                }

                $ilUser->setPref('chat_play_invitation_sound', (int)$form->getInput('play_invitation_sound'));
                $ilUser->writePrefs();

                ilUtil::sendSuccess($lng->txt('saved_successfully'));
                $this->showChatOptions($form);
        }

        public function setHeader()
        {
                $this->tpl->setVariable('HEADER', $this->lng->txt('personal_settings'));
        }

        public function showChatOptions(ilPropertyFormGUI $form = null)
        {
                global $ilUser, $ilCtrl;

                $chatSettings = new ilSetting('chatroom');
                $notificationSettings = new ilSetting('notifications');
                if(!(
                        $chatSettings->get('chat_enabled', false) &&
                        $notificationSettings->get('enable_osd', false) &&
                        $chatSettings->get('play_invitation_sound', false)
                ))
                {
                        $ilCtrl->redirect($this);
                }

                $this->__initSubTabs('showChatOptions');
                $this->setHeader();

                if($form)
                {
                        $form->setValuesByPost();
                }
                else
                {
                        $form = $this->getChatSettingsForm();
                        $form->setValuesByArray(array(
                                'play_invitation_sound' => $ilUser->getPref('chat_play_invitation_sound')
                        ));
                }

                $this->tpl->setContent($form->getHTML());
                $this->tpl->show();
        }
        
        
        //
        //
        //      PASSWORD FORM
        //
        //

        function showPassword($a_no_init = false, $hide_form = false)
        {
                global $ilTabs, $ilUser;
                
                $this->__initSubTabs("showPersonalData");
                $ilTabs->activateTab("password");

                $this->setHeader();
                // check whether password of user have to be changed
                // due to first login or password of user is expired
                if($ilUser->isPasswordChangeDemanded())
                {
                        ilUtil::sendInfo(
                                $this->lng->txt('password_change_on_first_login_demand')
                        );
                }
                else if($ilUser->isPasswordExpired())
                {
                        $msg          = $this->lng->txt('password_expired');
                        $password_age = $ilUser->getPasswordAge();
                        ilUtil::sendInfo(sprintf($msg, $password_age));
                }

                if (!$a_no_init && !$hide_form)
                {
                        $this->initPasswordForm();
                }
                $this->tpl->setContent(!$hide_form ? $this->form->getHTML() : '');
                $this->tpl->show();
        }

        public function initPasswordForm()
        {
                global $lng, $ilUser, $ilSetting;
                
                include_once("Services/Form/classes/class.ilPropertyFormGUI.php");
                $this->form = new ilPropertyFormGUI();
        
                // Check whether password change is allowed
                if ($this->allowPasswordChange())
                {
                        // The current password needs to be checked for verification
                        // unless the user uses Shibboleth authentication with additional
                        // local authentication for WebDAV.
                        //if (
                        //      ($ilUser->getAuthMode(true) != AUTH_SHIBBOLETH || !$ilSetting->get("shib_auth_allow_local"))
                        //)
                        if($ilUser->getAuthMode(true) == AUTH_LOCAL)
                        {
                                // current password
                                $cpass = new ilPasswordInputGUI($lng->txt("current_password"), "current_password");
                                $cpass->setRetype(false);
                                $cpass->setSkipSyntaxCheck(true);
                                // only if a password exists.
                                if($ilUser->getPasswd())
                                {
                                        $cpass->setRequired(true);
                                }
                                $this->form->addItem($cpass);
                        }
                        
                        // new password
                        $ipass = new ilPasswordInputGUI($lng->txt("desired_password"), "new_password");
                        $ipass->setRequired(true);
                        $ipass->setInfo(ilUtil::getPasswordRequirementsInfo());

                        if ($ilSetting->get("passwd_auto_generate") == 1)       // auto generation list
                        {
                                $ipass->setPreSelection(true);
                                
                                $this->form->addItem($ipass);
                                $this->form->addCommandButton("savePassword", $lng->txt("save"));
                                $this->form->addCommandButton("showPassword", $lng->txt("new_list_password"));
                        }
                        else                                                            // user enters password
                        {
                                $this->form->addItem($ipass);
                                $this->form->addCommandButton("savePassword", $lng->txt("save"));
                        }
                        
                        switch ($ilUser->getAuthMode(true))
                        {
                                case AUTH_LOCAL :
                                        $this->form->setTitle($lng->txt("chg_password"));
                                        break;
                                        
                                case AUTH_SHIBBOLETH :
                                case AUTH_CAS:
                                        require_once 'Services/WebDAV/classes/class.ilDAVServer.php';
                                        if (ilDAVServer::_isActive())
                                        {
                                                $this->form->setTitle($lng->txt("chg_ilias_and_webfolder_password"));
                                        }
                                        else
                                        {
                                                $this->form->setTitle($lng->txt("chg_ilias_password"));
                                        }
                                        break;
                                default :
                                        $this->form->setTitle($lng->txt("chg_ilias_password"));
                                        break;
                        }
                        $this->form->setFormAction($this->ctrl->getFormAction($this));
                }
        }
        
        protected function allowPasswordChange()
        {
                global $ilUser;

                if (\ilSession::get('used_external_auth')) {
                        return false;
                }

                $status = ilAuthUtils::isPasswordModificationEnabled($ilUser->getAuthMode(true));
                if ($status) {
                        return true;
                }

                return \ilAuthUtils::isPasswordModificationHidden() && ($ilUser->isPasswordChangeDemanded() || $ilUser->isPasswordExpired());
        }
        
        public function savePassword()
        {
                global $tpl, $lng, $ilCtrl, $ilUser, $ilSetting;
        
                // normally we should not end up here
                if (!$this->allowPasswordChange())
                {
                        $ilCtrl->redirect($this, "showPersonalData");
                        return;
                }
                
                $this->initPasswordForm();
                if ($this->form->checkInput())
                {
                        $cp = $this->form->getItemByPostVar("current_password");
                        $np = $this->form->getItemByPostVar("new_password");
                        $error = false;
                        
                        // The old password needs to be checked for verification
                        // unless the user uses Shibboleth authentication with additional
                        // local authentication for WebDAV.
                        #if ($ilUser->getAuthMode(true) != AUTH_SHIBBOLETH || ! $ilSetting->get("shib_auth_allow_local"))
                        if($ilUser->getAuthMode(true) == AUTH_LOCAL)
                        {
                                require_once 'Services/User/classes/class.ilUserPasswordManager.php';
                                if(!ilUserPasswordManager::getInstance()->verifyPassword($ilUser, ilUtil::stripSlashes($_POST['current_password'])))
                                {
                                        $error = true;
                                        $cp->setAlert($this->lng->txt('passwd_wrong'));
                                }
                        }

                        // select password from auto generated passwords
                        if ($this->ilias->getSetting("passwd_auto_generate") == 1 &&
                                (!ilUtil::isPassword($_POST["new_password"])))
                        {
                                $error = true;
                                $np->setAlert($this->lng->txt("passwd_not_selected"));
                        }
                                
        
                        if ($this->ilias->getSetting("passwd_auto_generate") != 1 &&
                                !ilUtil::isPassword($_POST["new_password"],$custom_error))
                        {
                                $error = true;
                                if ($custom_error != '')
                                {
                                        $np->setAlert($custom_error);
                                }
                                else
                                {
                                        $np->setAlert($this->lng->txt("passwd_invalid"));
                                }
                        }
                        $error_lng_var = '';
                        if(
                                $this->ilias->getSetting("passwd_auto_generate") != 1 &&
                                !ilUtil::isPasswordValidForUserContext($_POST["new_password"], $ilUser, $error_lng_var)
                        )
                        {
                                ilUtil::sendFailure($this->lng->txt('form_input_not_valid'));
                                $np->setAlert($this->lng->txt($error_lng_var));
                                $error = true;
                        }
                        if ($this->ilias->getSetting("passwd_auto_generate") != 1 &&
                                ($ilUser->isPasswordExpired() || $ilUser->isPasswordChangeDemanded()) &&
                                ($_POST["current_password"] == $_POST["new_password"]))
                        {
                                $error = true;
                                $np->setAlert($this->lng->txt("new_pass_equals_old_pass"));
                        }
                        
                        if (!$error)
                        {
                                $ilUser->resetPassword($_POST["new_password"], $_POST["new_password"]);
                                if ($_POST["current_password"] != $_POST["new_password"])
                                {
                                        $ilUser->setLastPasswordChangeToNow();
                                }

                                if(ilSession::get('orig_request_target'))
                                {
                                        ilUtil::sendSuccess($this->lng->txt('saved_successfully'), true);
                                        $target = ilSession::get('orig_request_target');
                                        ilSession::set('orig_request_target', '');
                                        ilUtil::redirect($target);
                                }
                                else
                                {
                                        ilUtil::sendSuccess($this->lng->txt('saved_successfully'));
                                        $this->showPassword(true, true);
                                        return;
                                }
                        }
                }
                $this->form->setValuesByPost();
                $this->showPassword(true);
        }
        
        //
        //
        //      GENERAL SETTINGS FORM
        //
        //

        function workWithUserSetting($setting)
        {
                $result = TRUE;
                if ($this->settings["usr_settings_hide_".$setting] == 1)
                {
                        $result = FALSE;
                }
                if ($this->settings["usr_settings_disable_".$setting] == 1)
                {
                        $result = FALSE;
                }
                return $result;
        }

        function userSettingVisible($setting)
        {
                $result = TRUE;
                if (isset($this->settings["usr_settings_hide_".$setting]) &&
                        $this->settings["usr_settings_hide_".$setting] == 1)
                {
                        $result = FALSE;
                }
                return $result;
        }

        function userSettingEnabled($setting)
        {
                $result = TRUE;
                if ($this->settings["usr_settings_disable_".$setting] == 1)
                {
                        $result = FALSE;
                }
                return $result;
        }

        function showGeneralSettings($a_no_init = false)
        {
                global $ilTabs, $ilToolbar, $ilCtrl;
                
                // test to other base class
//              $ilToolbar->addButton("test",
//                      $ilCtrl->getLinkTargetByClass(array("ilmailgui","ilmailformgui"), "mailUser"));
                
                $this->__initSubTabs("showPersonalData");
                $ilTabs->activateTab("general_settings");

                $this->setHeader();

                if (!$a_no_init)
                {
                        $this->initGeneralSettingsForm();
                }
                $this->tpl->setContent($this->form->getHTML());
                $this->tpl->show();
        }

        public function initGeneralSettingsForm()
        {
                global $lng, $ilUser, $styleDefinition, $ilSetting;
                
                
                include_once("Services/Form/classes/class.ilPropertyFormGUI.php");
                $this->form = new ilPropertyFormGUI();

                // language
                if ($this->userSettingVisible("language"))
                {
                        $languages = $this->lng->getInstalledLanguages();
                        $options = array();
                        foreach($languages as $lang_key)
                        {
                                $options[$lang_key] = ilLanguage::_lookupEntry($lang_key,"meta", "meta_l_".$lang_key);
                        }
                        
                        $si = new ilSelectInputGUI($this->lng->txt("language"), "language");
                        $si->setOptions($options);
                        $si->setValue($ilUser->getLanguage());
                        $si->setDisabled($ilSetting->get("usr_settings_disable_language"));
                        $this->form->addItem($si);
                }

                // skin/style
                include_once("./Services/Style/classes/class.ilObjStyleSettings.php");
                if ($this->userSettingVisible("skin_style"))
                {
                        $templates = $styleDefinition->getAllTemplates();
                        if (is_array($templates))
                        { 
                                $si = new ilSelectInputGUI($this->lng->txt("skin_style"), "skin_style");
                                
                                $options = array();
                                foreach($templates as $template)
                                {
                                        // get styles information of template
                                        $styleDef = new ilStyleDefinition($template["id"]);
                                        $styleDef->startParsing();
                                        $styles = $styleDef->getStyles();

                                        foreach($styles as $style)
                                        {
                                                if (!ilObjStyleSettings::_lookupActivatedStyle($template["id"],$style["id"]))
                                                {
                                                        continue;
                                                }

                                                $options[$template["id"].":".$style["id"]] =
                                                        $styleDef->getTemplateName()." / ".$style["name"];
                                        }
                                }
                                $si->setOptions($options);
                                $si->setValue($ilUser->skin.":".$ilUser->prefs["style"]);
                                $si->setDisabled($ilSetting->get("usr_settings_disable_skin_style"));
                                $this->form->addItem($si);
                        }
                }

                // screen reader optimization
                if ($this->userSettingVisible("screen_reader_optimization"))
                { 
                        $cb = new ilCheckboxInputGUI($this->lng->txt("user_screen_reader_optimization"), "screen_reader_optimization");
                        $cb->setChecked($ilUser->prefs["screen_reader_optimization"]);
                        $cb->setDisabled($ilSetting->get("usr_settings_disable_screen_reader_optimization"));
                        $cb->setInfo($this->lng->txt("user_screen_reader_optimization_info"));
                        $this->form->addItem($cb);
                }

                // hits per page
                if ($this->userSettingVisible("hits_per_page"))
                {
                        $si = new ilSelectInputGUI($this->lng->txt("hits_per_page"), "hits_per_page");
                        
                        $hits_options = array(10,15,20,30,40,50,100,9999);
                        $options = array();

                        foreach($hits_options as $hits_option)
                        {
                                $hstr = ($hits_option == 9999)
                                        ? $this->lng->txt("no_limit")
                                        : $hits_option;
                                $options[$hits_option] = $hstr;
                        }
                        $si->setOptions($options);
                        $si->setValue($ilUser->prefs["hits_per_page"]);
                        $si->setDisabled($ilSetting->get("usr_settings_disable_hits_per_page"));
                        $this->form->addItem($si);
                }

                // Users Online
                /*
                if ($this->userSettingVisible("show_users_online"))
                {
                        $si = new ilSelectInputGUI($this->lng->txt("show_users_online"), "show_users_online");
                        
                        $options = array(
                                "y" => $this->lng->txt("users_online_show_y"),
                                "associated" => $this->lng->txt("users_online_show_associated"),
                                "n" => $this->lng->txt("users_online_show_n"));
                        $si->setOptions($options);
                        $si->setValue($ilUser->prefs["show_users_online"]);
                        $si->setDisabled($ilSetting->get("usr_settings_disable_show_users_online"));
                        $this->form->addItem($si);
                }*/

                // Store last visited
                $lv = new ilSelectInputGUI($this->lng->txt("user_store_last_visited"), "store_last_visited");
                $options = array(
                        0 => $this->lng->txt("user_lv_keep_entries"),
                        1 => $this->lng->txt("user_lv_keep_only_for_session"),
                        2 => $this->lng->txt("user_lv_do_not_store"));
                $lv->setOptions($options);
                $lv->setValue((int) $ilUser->prefs["store_last_visited"]);
                $this->form->addItem($lv);

                // hide_own_online_status
                $awrn_set = new ilSetting("awrn");
                if ($awrn_set->get("awrn_enabled", false) && $this->userSettingVisible("hide_own_online_status"))
                {
                        $this->lng->loadLanguageModule("awrn");
                        $cb = new ilCheckboxInputGUI($this->lng->txt("awrn_hide_from_awareness"), "hide_own_online_status");
                        $cb->setInfo($this->lng->txt("awrn_hide_from_awareness_info"));
                        $cb->setChecked($ilUser->prefs["hide_own_online_status"] == "y");
                        $cb->setDisabled($ilSetting->get("usr_settings_disable_hide_own_online_status"));
                        $this->form->addItem($cb);
                }

                require_once 'Services/Contact/BuddySystem/classes/class.ilBuddySystem.php';
                if(ilBuddySystem::getInstance()->isEnabled() && $this->userSettingVisible('bs_allow_to_contact_me'))
                {
                        $this->lng->loadLanguageModule('buddysystem');
                        $allow_to_contact_be = new ilCheckboxInputGUI($this->lng->txt('buddy_allow_to_contact_me'), 'bs_allow_to_contact_me');
                        $allow_to_contact_be->setInfo($this->lng->txt('buddy_allow_to_contact_me_info'));
                        $allow_to_contact_be->setChecked($ilUser->prefs['bs_allow_to_contact_me'] == 'y');
                        $allow_to_contact_be->setDisabled($ilSetting->get('usr_settings_disable_bs_allow_to_contact_me'));
                        $this->form->addItem($allow_to_contact_be);
                }

                include_once 'Services/Authentication/classes/class.ilSessionReminder.php';
                if(ilSessionReminder::isGloballyActivated())
                {
                        $cb = new ilCheckboxInputGUI($this->lng->txt('session_reminder'), 'session_reminder_enabled');
                        $cb->setInfo($this->lng->txt('session_reminder_info'));
                        $cb->setValue(1);
                        $cb->setChecked((int)$ilUser->getPref('session_reminder_enabled'));

                        $expires = ilSession::getSessionExpireValue();
                        $lead_time_gui = new ilNumberInputGUI($this->lng->txt('session_reminder_lead_time'), 'session_reminder_lead_time');
                        $lead_time_gui->setInfo(sprintf($this->lng->txt('session_reminder_lead_time_info'), ilFormat::_secondsToString($expires, true)));

                        $min_value = ilSessionReminder::MIN_LEAD_TIME;
                        $max_value = max($min_value, ((int)$expires / 60) - 1);

                        $current_user_value = $ilUser->getPref('session_reminder_lead_time');
                        if($current_user_value < $min_value ||
                           $current_user_value > $max_value)
                        {
                                $current_user_value = ilSessionReminder::SUGGESTED_LEAD_TIME;
                        }
                        $value = min(
                                max(
                                        $min_value, $current_user_value
                                ),
                                $max_value
                        );

                        $lead_time_gui->setValue($value);
                        $lead_time_gui->setSize(3);
                        $lead_time_gui->setMinValue($min_value);
                        $lead_time_gui->setMaxValue($max_value);
                        $cb->addSubItem($lead_time_gui);

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

                // calendar settings (copied here to be reachable when calendar is inactive)
                // they cannot be hidden/deactivated

                include_once('Services/Calendar/classes/class.ilCalendarUserSettings.php');
                include_once('Services/Calendar/classes/class.ilCalendarUtil.php');
                $lng->loadLanguageModule("dateplaner");
                $user_settings = ilCalendarUserSettings::_getInstanceByUserId($ilUser->getId());

                $select = new ilSelectInputGUI($lng->txt('cal_user_timezone'),'timezone');
                $select->setOptions(ilCalendarUtil::_getShortTimeZoneList());
                $select->setInfo($lng->txt('cal_timezone_info'));
                $select->setValue($user_settings->getTimeZone());
                $this->form->addItem($select);

                $year = date("Y");
                $select = new ilSelectInputGUI($lng->txt('cal_user_date_format'),'date_format');
                $select->setOptions(array(
                        ilCalendarSettings::DATE_FORMAT_DMY => '31.10.'.$year,
                        ilCalendarSettings::DATE_FORMAT_YMD => $year."-10-31",
                        ilCalendarSettings::DATE_FORMAT_MDY => "10/31/".$year));
                $select->setInfo($lng->txt('cal_date_format_info'));
                $select->setValue($user_settings->getDateFormat());
                $this->form->addItem($select);

                $select = new ilSelectInputGUI($lng->txt('cal_user_time_format'),'time_format');
                $select->setOptions(array(
                        ilCalendarSettings::TIME_FORMAT_24 => '13:00',
                        ilCalendarSettings::TIME_FORMAT_12 => '1:00pm'));
                $select->setInfo($lng->txt('cal_time_format_info'));
            $select->setValue($user_settings->getTimeFormat());
                $this->form->addItem($select);
                
                
                // starting point       
                include_once "Services/User/classes/class.ilUserUtil.php";
                if(ilUserUtil::hasPersonalStartingPoint())
                {
                        $this->lng->loadLanguageModule("administration");
                        $si = new ilRadioGroupInputGUI($this->lng->txt("adm_user_starting_point"), "usr_start");
                        $si->setRequired(true);
                        $si->setInfo($this->lng->txt("adm_user_starting_point_info"));
                        $def_opt = new ilRadioOption($this->lng->txt("adm_user_starting_point_inherit"), 0);
                        $def_opt->setInfo($this->lng->txt("adm_user_starting_point_inherit_info"));
                        $si->addOption($def_opt);
                        foreach(ilUserUtil::getPossibleStartingPoints() as $value => $caption)
                        {
                                $si->addOption(new ilRadioOption($caption, $value));
                        }
                        $si->setValue(ilUserUtil::hasPersonalStartPointPref()
                                ? ilUserUtil::getPersonalStartingPoint()
                                : 0);
                        $this->form->addItem($si);
                                                
                        // starting point: repository object
                        $repobj = new ilRadioOption($lng->txt("adm_user_starting_point_object"), ilUserUtil::START_REPOSITORY_OBJ);
                        $repobj_id = new ilTextInputGUI($lng->txt("adm_user_starting_point_ref_id"), "usr_start_ref_id");
                        $repobj_id->setInfo($lng->txt("adm_user_starting_point_ref_id_info"));
                        $repobj_id->setRequired(true);
                        $repobj_id->setSize(5);
                        if($si->getValue() == ilUserUtil::START_REPOSITORY_OBJ)
                        {
                                $start_ref_id = ilUserUtil::getPersonalStartingObject();
                                $repobj_id->setValue($start_ref_id);
                                if($start_ref_id)
                                {
                                        $start_obj_id = ilObject::_lookupObjId($start_ref_id);
                                        if($start_obj_id)
                                        {
                                                $repobj_id->setInfo($lng->txt("obj_".ilObject::_lookupType($start_obj_id)).
                                                        ": ".ilObject::_lookupTitle($start_obj_id));
                                        }
                                }
                        }               
                        $repobj->addSubItem($repobj_id);
                        $si->addOption($repobj);
                }               
                
                // selector for unicode characters
                global $ilSetting;
                if ($ilSetting->get('char_selector_availability') > 0)
                {
                        require_once 'Services/UIComponent/CharSelector/classes/class.ilCharSelectorGUI.php';
                        $char_selector = new ilCharSelectorGUI(ilCharSelectorConfig::CONTEXT_USER);
                        $char_selector->getConfig()->setAvailability($ilUser->getPref('char_selector_availability'));
                        $char_selector->getConfig()->setDefinition($ilUser->getPref('char_selector_definition'));
                        $char_selector->addFormProperties($this->form);
                        $char_selector->setFormValues($this->form);
                }
                
                $this->form->addCommandButton("saveGeneralSettings", $lng->txt("save"));
                $this->form->setTitle($lng->txt("general_settings"));
                $this->form->setFormAction($this->ctrl->getFormAction($this));
         
        }
        
        public function saveGeneralSettings()
        {
                global $tpl, $lng, $ilCtrl, $ilUser;
        
                $this->initGeneralSettingsForm();
                if ($this->form->checkInput())
                {       
                        if ($this->workWithUserSetting("skin_style"))
                        {
                                //set user skin and style
                                if ($_POST["skin_style"] != "")
                                {
                                        $sknst = explode(":", $_POST["skin_style"]);

                                        if ($ilUser->getPref("style") != $sknst[1] ||
                                                $ilUser->getPref("skin") != $sknst[0])
                                        {
                                                $ilUser->setPref("skin", $sknst[0]);
                                                $ilUser->setPref("style", $sknst[1]);
                                        }
                                }
                        }

                        // language
                        if ($this->workWithUserSetting("language"))
                        {
                                $ilUser->setLanguage($_POST["language"]);
                        }
                        
                        // hits per page
                        if ($this->workWithUserSetting("hits_per_page"))
                        {
                                if ($_POST["hits_per_page"] != "")
                                {
                                        $ilUser->setPref("hits_per_page",$_POST["hits_per_page"]);
                                }
                        }

                        // set show users online
                        /*
                        if ($this->workWithUserSetting("show_users_online"))
                        {
                                $ilUser->setPref("show_users_online", $_POST["show_users_online"]);
                        }*/
                        
                        // store last visited?
                        global $ilNavigationHistory;
                        $ilUser->setPref("store_last_visited", (int) $_POST["store_last_visited"]);
                        if ((int) $_POST["store_last_visited"] > 0)
                        {
                                $ilNavigationHistory->deleteDBEntries();
                                if ((int) $_POST["store_last_visited"] == 2)
                                {
                                        $ilNavigationHistory->deleteSessionEntries();
                                }
                        }

                        // set hide own online_status
                        if ($this->workWithUserSetting("hide_own_online_status"))
                        {
                                if ($_POST["hide_own_online_status"] == 1)
                                {
                                        $ilUser->setPref("hide_own_online_status","y");
                                }
                                else
                                {
                                        $ilUser->setPref("hide_own_online_status","n");
                                }
                        }

                        require_once 'Services/Contact/BuddySystem/classes/class.ilBuddySystem.php';
                        if(ilBuddySystem::getInstance()->isEnabled() && $this->workWithUserSetting('bs_allow_to_contact_me'))
                        {
                                if(isset($_POST['bs_allow_to_contact_me']) && $_POST['bs_allow_to_contact_me'] == 1)
                                {
                                        $ilUser->setPref('bs_allow_to_contact_me', 'y');
                                }
                                else
                                {
                                        $ilUser->setPref('bs_allow_to_contact_me', 'n');
                                }
                        }

                        // set show users online
                        if ($this->workWithUserSetting("screen_reader_optimization"))
                        {
                                $ilUser->setPref("screen_reader_optimization", $_POST["screen_reader_optimization"]);
                        }
                        
                        // session reminder
                        include_once 'Services/Authentication/classes/class.ilSessionReminder.php';
                        if(ilSessionReminder::isGloballyActivated())
                        {
                                $ilUser->setPref('session_reminder_enabled', (int)$this->form->getInput('session_reminder_enabled'));
                                $ilUser->setPref('session_reminder_lead_time', $this->form->getInput('session_reminder_lead_time'));
                        }

                        // starting point       
                        include_once "Services/User/classes/class.ilUserUtil.php";
                        if(ilUserUtil::hasPersonalStartingPoint())
                        {
                                ilUserUtil::setPersonalStartingPoint($this->form->getInput('usr_start'), 
                                        $this->form->getInput('usr_start_ref_id'));
                        }

                        // selector for unicode characters
                        global $ilSetting;
                        if ($ilSetting->get('char_selector_availability') > 0)
                        {
                                require_once 'Services/UIComponent/CharSelector/classes/class.ilCharSelectorGUI.php';
                                $char_selector = new ilCharSelectorGUI(ilCharSelectorConfig::CONTEXT_USER);
                                $char_selector->getFormValues($this->form);
                                $ilUser->setPref('char_selector_availability', $char_selector->getConfig()->getAvailability());
                                $ilUser->setPref('char_selector_definition', $char_selector->getConfig()->getDefinition());
                        }

                        $ilUser->update();

                        // calendar settings
                        include_once('Services/Calendar/classes/class.ilCalendarUserSettings.php');
                        $user_settings = ilCalendarUserSettings::_getInstanceByUserId($ilUser->getId());
                        $user_settings->setTimeZone($this->form->getInput("timezone"));
                        $user_settings->setDateFormat((int)$this->form->getInput("date_format"));
                        $user_settings->setTimeFormat((int)$this->form->getInput("time_format"));
                        $user_settings->save();
                                                
                        ilUtil::sendSuccess($lng->txt("msg_obj_modified"), true);
                        $ilCtrl->redirect($this, "showGeneralSettings");
                }

                $this->form->setValuesByPost();
                $this->showGeneralSettings(true);
        }
        
        protected function deleteOwnAccount1()
        {       
                global $ilTabs, $ilToolbar, $ilUser, $ilSetting;
                
                if(!(bool)$ilSetting->get('user_delete_own_account') ||
                        $ilUser->getId() == SYSTEM_USER_ID)
                {
                        $this->ctrl->redirect($this, "showGeneralSettings");
                }
                
                // too make sure
                $ilUser->removeDeletionFlag();          
                
                $this->setHeader();
                $this->__initSubTabs("deleteOwnAccount");
                $ilTabs->activateTab("delacc");
                
                ilUtil::sendInfo($this->lng->txt('user_delete_own_account_info'));
                $ilToolbar->addButton($this->lng->txt('btn_next'),
                        $this->ctrl->getLinkTarget($this, 'deleteOwnAccount2'));
                
                $this->tpl->show();
        }
        
        protected function deleteOwnAccount2()
        {       
                global $ilTabs, $ilUser, $ilSetting;
                
                if(!(bool)$ilSetting->get('user_delete_own_account') ||
                        $ilUser->getId() == SYSTEM_USER_ID)
                {
                        $this->ctrl->redirect($this, "showGeneralSettings");
                }
                
                $this->setHeader();
                $this->__initSubTabs("deleteOwnAccount");
                $ilTabs->activateTab("delacc");
                
                include_once "Services/Utilities/classes/class.ilConfirmationGUI.php";
                $cgui = new ilConfirmationGUI();                
                $cgui->setHeaderText($this->lng->txt('user_delete_own_account_logout_confirmation'));
                $cgui->setFormAction($this->ctrl->getFormAction($this));
                $cgui->setCancel($this->lng->txt("cancel"), "abortDeleteOwnAccount");
                $cgui->setConfirm($this->lng->txt("user_delete_own_account_logout_button"), "deleteOwnAccountLogout");          
                $this->tpl->setContent($cgui->getHTML());                       
                $this->tpl->show();     
        }
        
        protected function abortDeleteOwnAccount()
        {
                global $ilCtrl, $ilUser;
                
                $ilUser->removeDeletionFlag();                  
                
                ilUtil::sendInfo($this->lng->txt("user_delete_own_account_aborted"), true);
                $ilCtrl->redirect($this, "showGeneralSettings");
        }
        
        protected function deleteOwnAccountLogout()
        {
                global $ilAuth, $ilUser;
                                
                // we are setting the flag and ending the session in the same step
                
                $ilUser->activateDeletionFlag();                                
                                
                // see ilStartupGUI::showLogout()
                ilSession::setClosingContext(ilSession::SESSION_CLOSE_USER);            
                $ilAuth->logout();
                session_destroy();
                
                ilUtil::redirect("login.php?target=usr_".md5("usrdelown"));             
        }
        
        protected function deleteOwnAccount3()
        {       
                global $ilTabs, $ilUser, $ilSetting;    
                
                if(!(bool)$ilSetting->get('user_delete_own_account') ||
                        $ilUser->getId() == SYSTEM_USER_ID ||
                        !$ilUser->hasDeletionFlag())
                {
                        $this->ctrl->redirect($this, "showGeneralSettings");
                }
        
                $this->setHeader();
                $this->__initSubTabs("deleteOwnAccount");
                $ilTabs->activateTab("delacc");

                include_once "Services/Utilities/classes/class.ilConfirmationGUI.php";
                $cgui = new ilConfirmationGUI();                
                $cgui->setHeaderText($this->lng->txt('user_delete_own_account_final_confirmation'));
                $cgui->setFormAction($this->ctrl->getFormAction($this));
                $cgui->setCancel($this->lng->txt("cancel"), "abortDeleteOwnAccount");
                $cgui->setConfirm($this->lng->txt("confirm"), "deleteOwnAccount4");             
                $this->tpl->setContent($cgui->getHTML());                       
                $this->tpl->show();     
        }
        
        protected function deleteOwnAccount4()
        {       
                global $ilUser, $ilAuth, $ilSetting, $ilLog;
                
                if(!(bool)$ilSetting->get('user_delete_own_account') ||
                        $ilUser->getId() == SYSTEM_USER_ID ||
                        !$ilUser->hasDeletionFlag())
                {
                        $this->ctrl->redirect($this, "showGeneralSettings");
                }
                
                // build notification
                
                include_once "./Services/Notification/classes/class.ilSystemNotification.php";
                $ntf = new ilSystemNotification();
                $ntf->setLangModules(array("user"));            
                $ntf->addAdditionalInfo("profile", $ilUser->getProfileAsString($this->lng), true);              
                
                // mail message
                ilDatePresentation::setUseRelativeDates(false);
                $ntf->setIntroductionDirect(
                        sprintf($this->lng->txt("user_delete_own_account_email_body"), 
                                $ilUser->getLogin(), 
                                ILIAS_HTTP_PATH, 
                                ilDatePresentation::formatDate(new ilDateTime(time(), IL_CAL_UNIX))));
                
                $message = $ntf->composeAndGetMessage($ilUser->getId(), null, null, true);
                $subject = $this->lng->txt("user_delete_own_account_email_subject");    
                
                
                // send notification
                
                include_once "Services/Mail/classes/class.ilMail.php";
                $mail = new ilMail(ANONYMOUS_USER_ID);
                
                $user_email = $ilUser->getEmail();              
                $admin_mail = $ilSetting->get("user_delete_own_account_email");         
                
                // to user, admin as bcc
                if($user_email)
                {                                                                                       
                        $mail->sendMimeMail($user_email, null, $admin_mail, $subject, $message, null, true);            
                }
                // admin only
                else if($admin_mail)
                {
                        $mail->sendMimeMail($admin_mail, null, null, $subject, $message, null, true);           
                }
                
                $ilLog->write("Account deleted: ".$ilUser->getLogin()." (".$ilUser->getId().")");
                                
                $ilUser->delete();

                // terminate session
                $ilAuth->logout();
                session_destroy();              
                
                ilUtil::redirect("login.php?accdel=1");                         
        }
}
?>