class.ilObjWorkspaceFolderGUI.php

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<?php

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

require_once "./Services/Object/classes/class.ilObject2GUI.php";

class ilObjWorkspaceFolderGUI extends ilObject2GUI
{
    protected $help;

    protected $tabs;

    protected $ui;

    protected $user_folder_settings;

    protected $requested_sortation;

    protected $wsp_log;

    public function __construct($a_id = 0, $a_id_type = self::REPOSITORY_NODE_ID, $a_parent_node_id = 0)
    {
        global $DIC;
        parent::__construct($a_id, $a_id_type, $a_parent_node_id);

        $this->lng = $DIC->language();
        $this->help = $DIC["ilHelp"];
        $this->tpl = $DIC["tpl"];
        $this->user = $DIC->user();
        $this->tabs = $DIC->tabs();
        $this->ctrl = $DIC->ctrl();
        $this->ui = $DIC->ui();

        $this->wsp_log = ilLoggerFactory::getLogger("pwsp");

        $this->user_folder_settings = new ilWorkspaceFolderUserSettings(
            $this->user->getId(),
            new ilWorkspaceFolderUserSettingsRepository($this->user->getId())
        );

        $this->requested_sortation = (int) $_GET["sortation"];

        $this->lng->loadLanguageModule("cntr");
    }

    public function getType()
    {
        return "wfld";
    }

    public function setTabs($a_show_settings = true)
    {
        $lng = $this->lng;
        $ilHelp = $this->help;

        $ilHelp->setScreenIdComponent("wfld");
        
        $this->ctrl->setParameter($this, "wsp_id", $this->node_id);

        $this->tabs_gui->addTab(
            "wsp",
            $lng->txt("wsp_tab_personal"),
            $this->ctrl->getLinkTarget($this, "")
        );
        
        $this->ctrl->setParameterByClass(
            "ilObjWorkspaceRootFolderGUI",
            "wsp_id",
            $this->getAccessHandler()->getTree()->getRootId()
        );
        
        $this->tabs_gui->addTab(
            "share",
            $lng->txt("wsp_tab_shared"),
            $this->ctrl->getLinkTargetByClass("ilObjWorkspaceRootFolderGUI", "shareFilter")
        );
        
        $this->tabs_gui->addTab(
            "ownership",
            $lng->txt("wsp_tab_ownership"),
            $this->ctrl->getLinkTargetByClass(array("ilObjWorkspaceRootFolderGUI", "ilObjectOwnershipManagementGUI"), "listObjects")
        );
        
        if (!$this->ctrl->getNextClass($this)) {
            if (stristr($this->ctrl->getCmd(), "share")) {
                $this->tabs_gui->activateTab("share");
            } else {
                $this->tabs_gui->activateTab("wsp");
                $this->addContentSubTabs($a_show_settings);
            }
        }
    }

    public function isActiveAdministrationPanel()
    {
        return (bool) $_SESSION["il_wsp_admin_panel"];
    }

    public function setAdministrationPanel(bool $active)
    {
        return $_SESSION["il_wsp_admin_panel"] = $active;
    }

    protected function addContentSubTabs($a_show_settings)
    {
        $tabs = $this->tabs;
        $ctrl = $this->ctrl;
        $lng = $this->lng;

        if ($this->checkPermissionBool("read")) {
            $tabs->addSubTab("content", $lng->txt("view"), $ctrl->getLinkTarget($this, "disableAdminPanel"));
            $tabs->addSubTab("manage", $lng->txt("cntr_manage"), $ctrl->getLinkTarget($this, "enableAdminPanel"));
        }

        if ($this->checkPermissionBool("write") && $a_show_settings) {
            $this->tabs_gui->addSubTab(
                "settings",
                $lng->txt("settings"),
                $this->ctrl->getLinkTarget($this, "edit")
            );
        }

        if ($this->isActiveAdministrationPanel()) {
            $tabs->activateSubTab("manage");
        } else {
            $tabs->activateSubTab("content");
        }
    }

    protected function enableAdminPanel()
    {
        $this->setAdministrationPanel(true);
        $this->ctrl->redirect($this, "");
    }

    protected function disableAdminPanel()
    {
        $this->setAdministrationPanel(false);
        $this->ctrl->redirect($this, "");
    }

    public function executeCommand()
    {
        $next_class = $this->ctrl->getNextClass($this);
        $cmd = $this->ctrl->getCmd();

        switch ($next_class) {
            case "ilcommonactiondispatchergui":
                include_once("Services/Object/classes/class.ilCommonActionDispatcherGUI.php");
                $gui = ilCommonActionDispatcherGUI::getInstanceFromAjaxCall();
                $this->ctrl->forwardCommand($gui);
                break;
            
            case "ilobjectownershipmanagementgui":
                $this->prepareOutput();
                $this->tabs_gui->activateTab("ownership");
                include_once("Services/Object/classes/class.ilObjectOwnershipManagementGUI.php");
                $gui = new ilObjectOwnershipManagementGUI();
                $this->ctrl->forwardCommand($gui);
                break;
            
            default:
                $this->prepareOutput();
                if ($this->type != "wsrt") {
                    $this->addHeaderAction();
                }
                if (!$cmd) {
                    $cmd = "render";
                }
                $this->$cmd();
                break;
        }
        
        return true;
    }
    
    protected function initCreationForms($a_new_type)
    {
        $forms = array(
            self::CFORM_NEW => $this->initCreateForm($a_new_type)
            );

        return $forms;
    }

    public function render()
    {
        $tpl = $this->tpl;
        $ilUser = $this->user;
        $ilTabs = $this->tabs;
        $ilCtrl = $this->ctrl;

        //$this->addContentSubTabs();
        $this->showAdministrationPanel();

        unset($_SESSION['clipboard']['wsp2repo']);
        
        // add new item
        include_once "Services/Object/classes/class.ilObjectAddNewItemGUI.php";
        $gui = new ilObjectAddNewItemGUI($this->node_id);
        $gui->setMode(ilObjectDefinition::MODE_WORKSPACE);
        $gui->setCreationUrl($ilCtrl->getLinkTarget($this, "create"));
        $gui->render();
    
        include_once "Services/Object/classes/class.ilObjectListGUI.php";
        ilObjectListGUI::prepareJsLinks(
            "",
            $this->ctrl->getLinkTargetByClass(array("ilcommonactiondispatchergui", "ilnotegui"), "", "", true, false),
            $this->ctrl->getLinkTargetByClass(array("ilcommonactiondispatchergui", "iltagginggui"), "", "", true, false)
        );
        
        include_once "Modules/WorkspaceFolder/classes/class.ilWorkspaceContentGUI.php";
        $gui = new ilWorkspaceContentGUI(
            $this,
            $this->node_id,
            $this->isActiveAdministrationPanel(),
            $this->getAccessHandler(),
            $this->ui,
            $this->lng,
            $this->user,
            $this->objDefinition,
            $this->ctrl,
            $this->user_folder_settings
        );
        $tpl->setContent($gui->render());

        include_once("./Services/PersonalWorkspace/classes/class.ilWorkspaceExplorerGUI.php");
        $exp = new ilWorkspaceExplorerGUI($ilUser->getId(), $this, "render", $this, "", "wsp_id");
        $exp->setTypeWhiteList(array("wsrt", "wfld"));
        $exp->setSelectableTypes(array("wsrt", "wfld"));
        $exp->setLinkToNodeClass(true);
        $exp->setActivateHighlighting(true);
        if ($exp->handleCommand()) {
            return;
        }
        $left = $exp->getHTML();

        $tpl->setLeftNavContent($left);
    }
    
    public function edit()
    {
        parent::edit();
      
        $this->tabs_gui->activateTab("wsp");
        $this->tabs_gui->activateSubTab("settings");
    }
    
    public function update()
    {
        parent::update();
        
        $this->tabs_gui->activateTab("wsp");
        $this->tabs_gui->activateSubTab("settings");
    }

    protected function getRequestItemIds()
    {
        if (is_string($_REQUEST["item_ref_id"]) && $_REQUEST["item_ref_id"] != "") {
            return [(int) $_REQUEST["item_ref_id"]];
        } elseif (is_array($_POST["id"])) {
            return array_map(function ($i) {
                return (int) $i;
            }, $_POST["id"]);
        }
        return [];
    }
    
    
    
    public function cut()
    {
        $item_ids = $this->getRequestItemIds();
        if (count($item_ids) == 0) {
            ilUtil::sendFailure($this->lng->txt("no_checkbox"), true);
            $this->ctrl->redirect($this);
        }

        //$current_node = $_REQUEST["item_ref_id"];
        //$parent_node = $this->tree->getParentId($current_node);

        // on cancel or fail we return to parent node
        //$this->ctrl->setParameter($this, "wsp_id", $parent_node);

        // check permission
        $no_cut = array();
        $repo_switch_allowed = true;
        foreach ($item_ids as $item_id) {
            foreach ($this->tree->getSubTree($this->tree->getNodeData($item_id)) as $node) {
                if (ilObject::_lookupType($node["obj_id"]) != "file") {
                    $repo_switch_allowed = false;
                }
                if (!$this->checkPermissionBool("delete", "", "", $node["wsp_id"])) {
                    $obj = ilObjectFactory::getInstanceByObjId($node["obj_id"]);
                    $no_cut[$node["wsp_id"]] = $obj->getTitle();
                    unset($obj);
                }
            }
        }
        if (count($no_cut)) {
            ilUtil::sendFailure($this->lng->txt("msg_no_perm_cut") . " " . implode(',', $no_cut), true);
            $this->ctrl->redirect($this);
        }

        // open current position
        // using the explorer session storage directly is basically a hack
        // as we do not use setExpanded() [see below]
        $_SESSION['paste_cut_wspexpand'] = array();
        foreach ((array) $this->tree->getPathId($this->node_id) as $node_id) {
            $_SESSION['paste_cut_wspexpand'][] = $node_id;
        }

        // remember source node
        $_SESSION['clipboard']['source_ids'] = $item_ids;
        $_SESSION['clipboard']['cmd'] = 'cut';

        return $this->showMoveIntoObjectTree($repo_switch_allowed);
    }
        
    public function cut_for_repository()
    {
        $_SESSION['clipboard']['wsp2repo'] = true;
        $this->cut();
    }
    
    public function cut_for_workspace()
    {
        $_SESSION['clipboard']['wsp2repo'] = false;
        $this->cut();
    }

    public function copy()
    {
        $ilUser = $this->user;

        $item_ids = $this->getRequestItemIds();
        if (count($item_ids) == 0) {
            ilUtil::sendFailure($this->lng->txt("no_checkbox"), true);
            $this->ctrl->redirect($this);
        }

        // on cancel or fail we return to parent node
        $this->ctrl->setParameter($this, "wsp_id", $this->node_id);

        $repo_switch_allowed = true;
        foreach ($item_ids as $item_id) {
            $node = $this->tree->getNodeData($item_id);
            if (ilObject::_lookupType($node["obj_id"]) != "file") {
                $repo_switch_allowed = false;
            }
            $current_node = $item_id;
            $owner = $this->tree->lookupOwner($current_node);
            if ($owner == $ilUser->getId()) {
                // open current position
                // using the explorer session storage directly is basically a hack
                // as we do not use setExpanded() [see below]
                $_SESSION['paste_copy_wspexpand'] = array();
                foreach ((array) $this->tree->getPathId($item_id) as $node_id) {
                    $_SESSION['paste_copy_wspexpand'][] = $node_id;
                }
            } else {
                // see copyShared()
                ilUtil::sendFailure($this->lng->txt('permission_denied'), true);
                $this->ctrl->redirect($this);
            }
        }

        // remember source node
        $_SESSION['clipboard']['source_ids'] = $item_ids;
        $_SESSION['clipboard']['cmd'] = 'copy';

        return $this->showMoveIntoObjectTree($repo_switch_allowed);
    }
    
    public function copyShared()
    {
        if (!$_REQUEST["item_ref_id"]) {
            $this->ctrl->redirect($this, "share");
        }
        
        $current_node = $_REQUEST["item_ref_id"];
        $handler = $this->getAccessHandler();
        // see ilSharedRessourceGUI::hasAccess()
        if ($handler->checkAccess("read", "", $current_node)) {
            // remember source node
            $_SESSION['clipboard']['source_ids'] = [$current_node];
            $_SESSION['clipboard']['cmd'] = 'copy';
            $_SESSION['clipboard']['shared'] = true;

            return $this->showMoveIntoObjectTree();
        } else {
            $perms = $handler->getPermissions($current_node);
            if (in_array(ilWorkspaceAccessGUI::PERMISSION_ALL_PASSWORD, $perms)) {
                return $this->passwordForm($current_node);
            }
        }
        
        ilUtil::sendFailure($this->lng->txt('permission_denied'), true);
        $this->ctrl->redirect($this, "share");
    }
        
    public function copy_to_repository()
    {
        $_SESSION['clipboard']['wsp2repo'] = true;
        $this->copy();
    }

    public function copy_to_workspace()
    {
        $_SESSION['clipboard']['wsp2repo'] = false;
        $this->copy();
    }

    public function showMoveIntoObjectTree($repo_switch_allowed = false)
    {
        $ilTabs = $this->tabs;
        $tree = $this->tree;
        
        $ilTabs->clearTargets();

        if (!$_SESSION['clipboard']['shared']) {
            $ilTabs->setBackTarget(
                $this->lng->txt('back'),
                $this->ctrl->getLinkTarget($this)
            );
        } else {
            $ilTabs->setBackTarget(
                $this->lng->txt('back'),
                $this->ctrl->getLinkTarget($this, 'share')
            );
        }
        
        $mode = $_SESSION['clipboard']['cmd'];

        ilUtil::sendInfo($this->lng->txt('msg_' . $mode . '_clipboard'));
        
        $this->tpl->addBlockfile(
            'ADM_CONTENT',
            'adm_content',
            'tpl.paste_into_multiple_objects.html',
            "Services/Object"
        );
        
        // move/copy in personal workspace
        if (!$_SESSION['clipboard']['wsp2repo']) {
            include_once("./Services/PersonalWorkspace/classes/class.ilWorkspaceExplorerGUI.php");
            $exp = new ilWorkspaceExplorerGUI($this->user->getId(), $this, "showMoveIntoObjectTree", $this, "");
            $exp->setTypeWhiteList(array("wsrt", "wfld"));
            $exp->setSelectableTypes(array("wsrt", "wfld"));
            $exp->setSelectMode("node", false);
            if ($exp->handleCommand()) {
                return;
            }
            $this->tpl->setVariable('OBJECT_TREE', $exp->getHTML());

            // switch to repo?
            if ($repo_switch_allowed) {
                $switch_cmd = ($mode == "cut")
                    ? "cut_for_repository"
                    : "copy_to_repository";
                $this->tpl->setCurrentBlock("switch_button");
                $this->tpl->setVariable('CMD_SWITCH', $switch_cmd);
                $this->tpl->setVariable('TXT_SWITCH', $this->lng->txt('wsp_switch_to_repo_tree'));
                $this->tpl->parseCurrentBlock();

                foreach ($this->getRequestItemIds() as $id) {
                    $this->tpl->setCurrentBlock("hidden");
                    $this->tpl->setVariable('VALUE', $id);
                    $this->tpl->parseCurrentBlock();
                }
            }
        }
        // move/copy to repository
        else {
            require_once './Services/Object/classes/class.ilPasteIntoMultipleItemsExplorer.php';
            $exp = new ilPasteIntoMultipleItemsExplorer(
                ilPasteIntoMultipleItemsExplorer::SEL_TYPE_RADIO,
                '',
                'paste_' . $mode . '_repexpand'
            );
            $exp->setTargetGet('ref_id');
            
            if ($_GET['paste_' . $mode . '_repexpand'] == '') {
                $expanded = $tree->readRootId();
            } else {
                $expanded = $_GET['paste_' . $mode . '_repexpand'];
            }
            $exp->setCheckedItems(array((int) $_POST['node']));
            $exp->setExpandTarget($this->ctrl->getLinkTarget($this, 'showMoveIntoObjectTree'));
            $exp->setPostVar('node');
            $exp->setExpand($expanded);
            $exp->setOutput(0);
            $this->tpl->setVariable('OBJECT_TREE', $exp->getOutput());

            if (in_array($mode, ["copy", "cut"])) {
                $switch_cmd = ($mode == "cut")
                    ? "cut_for_workspace"
                    : "copy_to_workspace";
                $this->tpl->setCurrentBlock("switch_button");
                $this->tpl->setVariable('CMD_SWITCH', $switch_cmd);
                $this->tpl->setVariable('TXT_SWITCH', $this->lng->txt('wsp_switch_to_wsp_tree'));
                $this->tpl->parseCurrentBlock();

                foreach ($this->getRequestItemIds() as $id) {
                    $this->tpl->setCurrentBlock("hidden");
                    $this->tpl->setVariable('VALUE', $id);
                    $this->tpl->parseCurrentBlock();
                }
            }
        }
        

        unset($exp);

        $this->tpl->setVariable('FORM_TARGET', '_top');
        $this->tpl->setVariable(
            'FORM_ACTION',
            $this->ctrl->getFormAction($this, 'performPasteIntoMultipleObjects')
        );

        $this->tpl->setVariable('CMD_SUBMIT', 'performPasteIntoMultipleObjects');
        $this->tpl->setVariable('TXT_SUBMIT', $this->lng->txt('paste'));
    }

    public function performPasteIntoMultipleObjects()
    {
        $ilUser = $this->user;
        
        $mode = $_SESSION['clipboard']['cmd'];
        $source_node_ids = $_SESSION['clipboard']['source_ids'];
        $target_node_id = $_REQUEST['node'];

        if (!is_array($source_node_ids) || count($source_node_ids) == 0) {
            ilUtil::sendFailure($this->lng->txt('select_at_least_one_object'), true);
            $this->ctrl->redirect($this);
        }
        if (!$target_node_id) {
            ilUtil::sendFailure($this->lng->txt('select_at_least_one_object'), true);
            $this->ctrl->redirect($this, "showMoveIntoObjectTree");
        }

        if (!$_SESSION['clipboard']['wsp2repo']) {
            $target_obj_id = $this->tree->lookupObjectId($target_node_id);
        } else {
            $target_obj_id = ilObject::_lookupObjId($target_node_id);
        }
        $target_object = ilObjectFactory::getInstanceByObjId($target_obj_id);

        $fail = array();
        foreach ($source_node_ids as $source_node_id) {
            // object instances
            $source_obj_id = $this->tree->lookupObjectId($source_node_id);
            $source_object = ilObjectFactory::getInstanceByObjId($source_obj_id);


            // sanity checks
            if ($source_node_id == $target_node_id) {
                $fail[] = sprintf(
                    $this->lng->txt('msg_obj_exists_in_folder'),
                    $source_object->getTitle(),
                    $target_object->getTitle()
                );
            }

            if (!in_array($source_object->getType(), array_keys($target_object->getPossibleSubObjects()))) {
                $fail[] = sprintf(
                    $this->lng->txt('msg_obj_may_not_contain_objects_of_type'),
                    $target_object->getTitle(),
                    $source_object->getType()
                );
            }

            // if object is shared permission to copy has been checked above
            $owner = $this->tree->lookupOwner($source_node_id);
            if ($mode == "copy" && $ilUser->getId() == $owner && !$this->checkPermissionBool('copy', '', '', $source_node_id)) {
                $fail[] = $this->lng->txt('permission_denied');
            }

            if (!$_SESSION['clipboard']['wsp2repo']) {
                if ($mode == "cut" && $this->tree->isGrandChild($source_node_id, $target_node_id)) {
                    $fail[] = sprintf(
                        $this->lng->txt('msg_paste_object_not_in_itself'),
                        $source_object->getTitle()
                    );
                }
            }

            if ($_SESSION['clipboard']['wsp2repo'] == true) {        // see #22959
                global $ilAccess;
                if (!$ilAccess->checkAccess("create", "", $target_node_id, $source_object->getType())) {
                    $fail[] = sprintf(
                        $this->lng->txt('msg_no_perm_paste_object_in_folder'),
                        $source_object->getTitle(),
                        $target_object->getTitle()
                    );
                }
            } else {
                if (!$this->checkPermissionBool('create', '', $source_object->getType(), $target_node_id)) {
                    $fail[] = sprintf(
                        $this->lng->txt('msg_no_perm_paste_object_in_folder'),
                        $source_object->getTitle(),
                        $target_object->getTitle()
                    );
                }
            }
        }

        if (sizeof($fail)) {
            ilUtil::sendFailure(implode("<br />", $fail), true);
            $this->ctrl->redirect($this);
        }

        foreach ($source_node_ids as $source_node_id) {
            $source_tree = $this->tree;
            if ($ilUser->getId() != $owner && $mode == "copy") {
                $source_tree = new ilWorkspaceTree($owner);
            }
            $node_data = $source_tree->getNodeData($source_node_id);
            $source_object = ilObjectFactory::getInstanceByObjId($node_data["obj_id"]);

            // move the node
            if ($mode == "cut") {
                if (!$_SESSION['clipboard']['wsp2repo']) {
                    $this->tree->moveTree($source_node_id, $target_node_id);
                } else {
                    $parent_id = $this->tree->getParentId($source_node_id);

                    // remove from personal workspace
                    $this->getAccessHandler()->removePermission($source_node_id);
                    $this->tree->deleteReference($source_node_id);
                    $source_node = $this->tree->getNodeData($source_node_id);
                    $this->tree->deleteTree($source_node);

                    // add to repository
                    $source_object->createReference();
                    $source_object->putInTree($target_node_id);
                    $source_object->setPermissions($target_node_id);

                    $source_node_id = $parent_id;
                }
            } // copy the node
            elseif ($mode == "copy") {
                include_once('Services/CopyWizard/classes/class.ilCopyWizardOptions.php');
                $copy_id = ilCopyWizardOptions::_allocateCopyId();
                $wizard_options = ilCopyWizardOptions::_getInstance($copy_id);
                $this->wsp_log->debug("Copy ID: " . $copy_id . ", Source Node: " . $source_node_id
                    . ", source object: " . $source_object->getId());
                if (!$_SESSION['clipboard']['wsp2repo']) {
                    $wizard_options->disableTreeCopy();
                }
                $wizard_options->saveOwner($ilUser->getId());
                $wizard_options->saveRoot($source_node_id);
                $wizard_options->read();

                $new_obj = $source_object->cloneObject($target_node_id, $copy_id);
                // insert into workspace tree
                if ($new_obj && !$_SESSION['clipboard']['wsp2repo']) {
                    $this->wsp_log->debug("New Obj ID: " . $new_obj->getId());
                    $new_obj_node_id = $this->tree->insertObject($target_node_id, $new_obj->getId());
                    $this->getAccessHandler()->setPermissions($target_node_id, $new_obj_node_id);
                }

                $wizard_options->deleteAll();
            }
        }
        
        // redirect to target if not repository
        if (!$_SESSION['clipboard']['wsp2repo']) {
            $redirect_node = $target_node_id;
        } else {
            // reload current folder
            $redirect_node = $this->node_id;
        }
        
        unset($_SESSION['clipboard']['cmd']);
        unset($_SESSION['clipboard']['source_ids']);
        unset($_SESSION['clipboard']['wsp2repo']);
        unset($_SESSION['clipboard']['shared']);
        
        // #17746
        if ($mode == 'cut') {
            ilUtil::sendSuccess($this->lng->txt('msg_cut_copied'), true);
        } else {
            ilUtil::sendSuccess($this->lng->txt('msg_cloned'), true);
        }
        
        $this->ctrl->setParameter($this, "wsp_id", $redirect_node);
        $this->ctrl->redirect($this);
    }
    
    public function shareFilter()
    {
        $this->share(false);
    }
    
    public function share($a_load_data = true)
    {
        $tpl = $this->tpl;
    
        include_once "Services/PersonalWorkspace/classes/class.ilWorkspaceShareTableGUI.php";
        $tbl = new ilWorkspaceShareTableGUI($this, "share", $this->getAccessHandler(), $this->node_id, $a_load_data);
        $tpl->setContent($tbl->getHTML());
    }
    
    public function applyShareFilter()
    {
        include_once "Services/PersonalWorkspace/classes/class.ilWorkspaceShareTableGUI.php";
        $tbl = new ilWorkspaceShareTableGUI($this, "share", $this->getAccessHandler(), $this->node_id);
        $tbl->resetOffset();
        $tbl->writeFilterToSession();
        
        $this->share();
    }
    
    public function resetShareFilter()
    {
        include_once "Services/PersonalWorkspace/classes/class.ilWorkspaceShareTableGUI.php";
        $tbl = new ilWorkspaceShareTableGUI($this, "share", $this->getAccessHandler(), $this->node_id);
        $tbl->resetOffset();
        $tbl->resetFilter();
        
        $this->shareFilter();
    }
    
    protected function passwordForm($a_node_id, $form = null)
    {
        $tpl = $this->tpl;
        $lng = $this->lng;
        $ilTabs = $this->tabs;
        
        $tpl->setTitle($lng->txt("wsp_password_protected_resource"));
        $tpl->setDescription($lng->txt("wsp_password_protected_resource_info"));
        
        $ilTabs->clearTargets();
        $ilTabs->setBackTarget(
            $lng->txt("back"),
            $this->ctrl->getLinkTarget($this, "share")
        );
        
        if (!$form) {
            $form = $this->initPasswordForm($a_node_id);
        }
    
        $tpl->setContent($form->getHTML());
    }
    
    protected function initPasswordForm($a_node_id)
    {
        $ilCtrl = $this->ctrl;
        $lng = $this->lng;
                        
        $this->ctrl->setParameter($this, "item_ref_id", $a_node_id);
        
        $object_data = $this->getAccessHandler()->getObjectDataFromNode($a_node_id);
        
        include_once "Services/Form/classes/class.ilPropertyFormGUI.php";
        $form = new ilPropertyFormGUI();
        $form->setFormAction($ilCtrl->getFormAction($this, "checkPassword"));
        $form->setTitle($lng->txt("wsp_password_for") . ": " . $object_data["title"]);
        
        $password = new ilPasswordInputGUI($lng->txt("password"), "password");
        $password->setRetype(false);
        $password->setRequired(true);
        $password->setSkipSyntaxCheck(true);
        $form->addItem($password);
        
        $form->addCommandButton("checkPassword", $lng->txt("submit"));
        $form->addCommandButton("share", $lng->txt("cancel"));
        
        return $form;
    }
    
    protected function checkPassword()
    {
        $lng = $this->lng;
        
        $node_id = $_REQUEST["item_ref_id"];
        if (!$node_id) {
            $this->ctrl->redirect($this, "share");
        }
         
        $form = $this->initPasswordForm($node_id);
        if ($form->checkInput()) {
            include_once "Services/PersonalWorkspace/classes/class.ilWorkspaceAccessHandler.php";
            $password = ilWorkspaceAccessHandler::getSharedNodePassword($node_id);
            $input = md5($form->getInput("password"));
            if ($input == $password) {
                // we save password and start over
                ilWorkspaceAccessHandler::keepSharedSessionPassword($node_id, $input);
                
                $this->ctrl->setParameter($this, "item_ref_id", $node_id);
                $this->ctrl->redirect($this, "copyShared");
            } else {
                $item = $form->getItemByPostVar("password");
                $item->setAlert($lng->txt("wsp_invalid_password"));
                ilUtil::sendFailure($lng->txt("form_input_not_valid"));
            }
        }
        
        $form->setValuesByPost();
        $this->passwordForm($node_id, $form);
    }
    
    public static function _goto($a_target)
    {
        $id = explode("_", $a_target);
        
        $_GET["baseClass"] = "ilsharedresourceGUI";
        $_GET["wsp_id"] = $id[0];
        include("ilias.php");
        exit;
    }

    public function listSharedResourcesOfOtherUser()
    {
        $ilCtrl = $this->ctrl;

        include_once "Services/PersonalWorkspace/classes/class.ilWorkspaceShareTableGUI.php";
        $tbl = new ilWorkspaceShareTableGUI($this, "share", $this->getAccessHandler(), $this->node_id);
        $tbl->resetOffset();
        $tbl->resetFilter();
        $_POST["user"] = $_GET["user"];
        $tbl->writeFilterToSession();
        $this->share();
    }

    protected function deleteConfirmation()
    {
        global $DIC;

        $tpl = $DIC["tpl"];
        $lng = $DIC["lng"];

        $item_ids = $this->getRequestItemIds();

        if (count($item_ids) == 0) {
            ilUtil::sendFailure($lng->txt("no_checkbox"), true);
            $this->ctrl->redirect($this, "");
        }

        // on cancel or fail we return to parent node
        //$parent_node = $this->tree->getParentId($node_id);
        //$this->ctrl->setParameter($this, "wsp_id", $parent_node);

        include_once("./Services/Utilities/classes/class.ilConfirmationGUI.php");
        $cgui = new ilConfirmationGUI();
        $cgui->setHeaderText($lng->txt("info_delete_sure") . "<br/>" .
            $lng->txt("info_delete_warning_no_trash"));

        $cgui->setFormAction($this->ctrl->getFormAction($this));
        $cgui->setCancel($lng->txt("cancel"), "cancelDeletion");
        $cgui->setConfirm($lng->txt("confirm"), "confirmedDelete");

        foreach ($item_ids as $node_id) {
            $children = $this->tree->getSubTree($this->tree->getNodeData($node_id));
            foreach ($children as $child) {
                $node_id = $child["wsp_id"];
                $obj_id = $this->tree->lookupObjectId($node_id);
                $type = ilObject::_lookupType($obj_id);
                $title = call_user_func(array(ilObjectFactory::getClassByType($type),'_lookupTitle'), $obj_id);

                // if anything fails, abort the whole process
                if (!$this->checkPermissionBool("delete", "", "", $node_id)) {
                    ilUtil::sendFailure($lng->txt("msg_no_perm_delete") . " " . $title, true);
                    $this->ctrl->redirect($this);
                }

                $cgui->addItem(
                    "id[]",
                    $node_id,
                    $title,
                    ilObject::_getIcon($obj_id, "small", $type),
                    $lng->txt("icon") . " " . $lng->txt("obj_" . $type)
                );
            }
        }

        $tpl->setContent($cgui->getHTML());
    }

    public function cancelDeletion()
    {
        unset($_SESSION['clipboard']['cmd']);
        unset($_SESSION['clipboard']['source_ids']);
        unset($_SESSION['clipboard']['wsp2repo']);
        unset($_SESSION['clipboard']['shared']);
        parent::cancelDelete();
    }


    //
    // admin panel
    //

    public function showAdministrationPanel()
    {
        global $DIC;

        $ilAccess = $this->access;
        $lng = $this->lng;

        $main_tpl = $DIC->ui()->mainTemplate();

        $lng->loadLanguageModule('cntr');

        if ($_SESSION["wsp_clipboard"]) {
            // #11545
            $main_tpl->setPageFormAction($this->ctrl->getFormAction($this));

            include_once './Services/UIComponent/Toolbar/classes/class.ilToolbarGUI.php';
            $toolbar = new ilToolbarGUI();
            $this->ctrl->setParameter($this, "type", "");
            $this->ctrl->setParameter($this, "item_ref_id", "");

            $toolbar->addFormButton(
                $this->lng->txt('paste_clipboard_items'),
                'paste'
            );

            $toolbar->addFormButton(
                $this->lng->txt('clear_clipboard'),
                'clear'
            );

            $main_tpl->addAdminPanelToolbar($toolbar, true, false);
        } elseif ($this->isActiveAdministrationPanel()) {
            // #11545
            $main_tpl->setPageFormAction($this->ctrl->getFormAction($this));

            include_once './Services/UIComponent/Toolbar/classes/class.ilToolbarGUI.php';
            $toolbar = new ilToolbarGUI();
            $this->ctrl->setParameter($this, "type", "");
            $this->ctrl->setParameter($this, "item_ref_id", "");

            //                  if (!$_SESSION["clipboard"])
            //                  {
            if ($this->object->gotItems($this->node_id)) {
                $toolbar->setLeadingImage(
                    ilUtil::getImagePath("arrow_upright.svg"),
                    $lng->txt("actions")
                );
                $toolbar->addFormButton(
                    $this->lng->txt('delete_selected_items'),
                    'delete'
                );
                $toolbar->addFormButton(
                    $this->lng->txt('move_selected_items'),
                    'cut'
                );
                $toolbar->addFormButton(
                    $this->lng->txt('copy_selected_items'),
                    'copy'
                );
                $toolbar->addFormButton(
                    $this->lng->txt('download_selected_items'),
                    'download'
                );
                // add download button if multi download enabled

                //@todo download
                /*
                $folder_set = new ilSetting("fold");
                if ($folder_set->get("enable_multi_download") == true)
                {
                    $toolbar->addSeparator();

                    if(!$folder_set->get("bgtask_download", 0))
                    {
                        $toolbar->addFormButton(
                            $this->lng->txt('download_selected_items'),
                            'download'
                        );
                    }
                    else
                    {

                        $url =  $this->ctrl->getLinkTargetByClass(array("ilrepositorygui", "ilobjfoldergui", "ilbackgroundtaskhub"), "", "", true, false);
                        $main_tpl->addJavaScript("Services/BackgroundTask/js/BgTask.js");
                        $main_tpl->addOnLoadCode("il.BgTask.initMultiForm('ilFolderDownloadBackgroundTaskHandler');");
                        $main_tpl->addOnLoadCode('il.BgTask.setAjax("'.$url.'");');

                        include_once "Services/UIComponent/Button/classes/class.ilSubmitButton.php";
                        $button = ilSubmitButton::getInstance();
                        $button->setCaption("download_selected_items");
                        $button->addCSSClass("ilbgtasksubmit");
                        $button->setCommand("download");
                        $toolbar->addButtonInstance($button);
                    }
                }*/
            }

            $main_tpl->addAdminPanelToolbar(
                $toolbar,
                ($this->object->gotItems($this->node_id) && !$_SESSION["wsp_clipboard"]) ? true : false,
                ($this->object->gotItems($this->node_id) && !$_SESSION["wsp_clipboard"]) ? true : false
            );

            // form action needed, see http://www.ilias.de/mantis/view.php?id=9630
            if ($this->object->gotItems($this->node_id)) {
                $main_tpl->setPageFormAction($this->ctrl->getFormAction($this));
            }
        }
    }


    protected function setSortation()
    {
        $this->user_folder_settings->updateSortation($this->object->getId(), $this->requested_sortation);
        $this->ctrl->redirect($this, "");
    }

    public function download()
    {
        // This variable determines whether the task has been initiated by a folder's action drop-down to prevent a folder
        // duplicate inside the zip.
        $initiated_by_folder_action = false;

        if ($_GET["item_ref_id"] != "") {
            $_POST["id"] = array($_GET["item_ref_id"]);
        }

        if (!isset($_POST["id"])) {
            /*$object = ilObjectFactory::getInstanceByRefId($_GET['ref_id']);
            $object_type = $object->getType();
            if($object_type == "fold")
            {
                $_POST["id"] = array($_GET['ref_id']);
                $initiated_by_folder_action = true;
            }
            else
            {
                $ilErr->raiseError($this->lng->txt("no_checkbox"), $ilErr->MESSAGE);
            }
            ilUtil::sendFailure($this->lng->txt("no_checkbox"), true);*/
            $this->ctrl->redirect($this, "");
        }

        $download_job = new ilDownloadWorkspaceFolderBackgroundTask($GLOBALS['DIC']->user()->getId(), $_POST["id"], $initiated_by_folder_action);

        $download_job->setBucketTitle($this->getBucketTitle());
        if ($download_job->run()) {
            ilUtil::sendSuccess($this->lng->txt('msg_bt_download_started'), true);
        }
        $this->ctrl->redirect($this);
    }

    public function getBucketTitle()
    {
        return $bucket_title = ilUtil::getAsciiFilename($this->object->getTitle());
    }
}