| /*** OLAT - Online Learning and Training<br>* http://www.olat.org* <p>* Licensed under the Apache License, Version 2.0 (the "License"); <br>* you may not use this file except in compliance with the License.<br>* You may obtain a copy of the License at* <p>* http://www.apache.org/licenses/LICENSE-2.0* <p>* Unless required by applicable law or agreed to in writing,<br>* software distributed under the License is distributed on an "AS IS" BASIS, <br>* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>* See the License for the specific language governing permissions and <br>* limitations under the License.* <p>* Copyright (c) since 2004 at Multimedia- & E-Learning Services (MELS),<br>* University of Zurich, Switzerland.* <hr>* <a href="http://www.openolat.org">* OpenOLAT - Online Learning and Training</a><br>* This file has been modified by the OpenOLAT community. Changes are licensed* under the Apache 2.0 license as the original file. * <p>*/ package org.olat.core.commons.modules.bc.commands;import java.util.ArrayList;import java.util.Collections;import java.util.List;import org.olat.core.CoreSpringFactory;import org.olat.core.commons.modules.bc.FileSelection;import org.olat.core.commons.modules.bc.FolderEvent;import org.olat.core.commons.modules.bc.components.FolderComponent;import org.olat.core.commons.services.vfs.VFSVersionModule;import org.olat.core.gui.UserRequest;import org.olat.core.gui.components.Component;import org.olat.core.gui.control.Controller;import org.olat.core.gui.control.Event;import org.olat.core.gui.control.WindowControl;import org.olat.core.gui.control.controller.BasicController;import org.olat.core.gui.control.generic.modal.DialogBoxController;import org.olat.core.gui.control.generic.modal.DialogBoxUIFactory;import org.olat.core.gui.translator.Translator;import org.olat.core.util.vfs.VFSConstants;import org.olat.core.util.vfs.VFSContainer;import org.olat.core.util.vfs.VFSItem;import org.olat.core.util.vfs.VFSLockApplicationType;import org.olat.core.util.vfs.VFSLockManager;public class CmdDelete extends BasicController implements FolderCommand { private static int status = FolderCommandStatus.STATUS_SUCCESS; private Translator translator; private FolderComponent folderComponent; private FileSelection fileSelection; private DialogBoxController dialogCtr; private DialogBoxController lockedFiledCtr; private final boolean versionsEnabled; private final VFSLockManager lockManager; protected CmdDelete(UserRequest ureq, WindowControl wControl) { super(ureq, wControl); versionsEnabled = CoreSpringFactory.getImpl(VFSVersionModule.class).isEnabled(); lockManager = CoreSpringFactory.getImpl(VFSLockManager.class); } @Override public Controller execute(FolderComponent fc, UserRequest ureq, WindowControl wContr, Translator trans) { this.translator = trans; this.folderComponent = fc; // BUG: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') // this.fileSelection = new FileSelection(ureq, fc.getCurrentContainerPath()); // FIXED: this.fileSelection = new FileSelection(ureq, fc.getCurrentContainer(), fc.getCurrentContainerPath()); VFSContainer currentContainer = folderComponent.getCurrentContainer(); List<String> lockedFiles = hasLockedFiles(currentContainer, fileSelection); if (lockedFiles.isEmpty()) { String msg = trans.translate("del.confirm") + "<p>" + fileSelection.renderAsHtml() + "</p>"; // create dialog controller dialogCtr = activateYesNoDialog(ureq, trans.translate("del.header"), msg, dialogCtr); } else { String msg = FolderCommandHelper.renderLockedMessageAsHtml(trans, lockedFiles); List<String> buttonLabels = Collections.singletonList(trans.translate("ok")); lockedFiledCtr = activateGenericDialog(ureq, trans.translate("lock.title"), msg, buttonLabels, lockedFiledCtr); } return this; } public List<String> hasLockedFiles(VFSContainer container, FileSelection selection) { List<String> lockedFiles = new ArrayList<>(); for (String file : selection.getFiles()) { VFSItem item = container.resolve(file); if (lockManager.isLockedForMe(item, getIdentity(), VFSLockApplicationType.vfs, null)) { lockedFiles.add(file); } } return lockedFiles; } @Override public int getStatus() { return status; } @Override public boolean runsModal() { // this controller has its own modal dialog box return true; } @Override public String getModalTitle() { return null; } public FileSelection getFileSelection() { return fileSelection; } @Override public void event(UserRequest ureq, Controller source, Event event) { if (source == dialogCtr) { if (DialogBoxUIFactory.isYesEvent(event)) { // do delete VFSContainer currentContainer = folderComponent.getCurrentContainer(); List<String> files = fileSelection.getFiles(); if (files.isEmpty()) { // sometimes, browser sends empty form data... getWindowControl().setError(translator.translate("failed")); status = FolderCommandStatus.STATUS_FAILED; fireEvent(ureq, FOLDERCOMMAND_FINISHED); } for (String file : files) { VFSItem item = currentContainer.resolve(file); if (item != null && (item.canDelete() == VFSConstants.YES)) { if (versionsEnabled && item.canVersion() == VFSConstants.YES) { // Move to pub item.delete(); } else { item.deleteSilently(); } } else { getWindowControl().setWarning(translator.translate("del.partial")); } } String confirmationText = fileSelection.renderAsHtml(); fireEvent(ureq, new FolderEvent(FolderEvent.DELETE_EVENT, confirmationText)); fireEvent(ureq, FOLDERCOMMAND_FINISHED); } else { // abort status = FolderCommandStatus.STATUS_CANCELED; fireEvent(ureq, FOLDERCOMMAND_FINISHED); } } } @Override protected void event(UserRequest ureq, Component source, Event event) { // no events to catch } @Override protected void doDispose() { // autodisposed by basic controller }} |