DirectoryTreeFilterNode.java

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/*
 * Autopsy Forensic Browser
 *
 * Copyright 2011-2014 Basis Technology Corp.
 * Contact: carrier <at> sleuthkit <dot> org
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.sleuthkit.autopsy.directorytree;

import java.awt.event.ActionEvent;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.logging.Level;
import javax.swing.AbstractAction;
import javax.swing.Action;
import org.openide.nodes.FilterNode;
import org.openide.nodes.Node;
import org.openide.util.NbBundle;
import org.openide.util.lookup.Lookups;
import org.openide.util.lookup.ProxyLookup;
import org.sleuthkit.autopsy.coreutils.Logger;
import org.sleuthkit.autopsy.datamodel.AbstractContentNode;
import org.sleuthkit.autopsy.datamodel.DisplayableItemNode;
import org.sleuthkit.autopsy.ingest.RunIngestModulesDialog;
import org.sleuthkit.datamodel.AbstractFile;
import org.sleuthkit.datamodel.Content;
import org.sleuthkit.datamodel.Directory;
import org.sleuthkit.datamodel.Image;
import org.sleuthkit.datamodel.TskCoreException;
import org.sleuthkit.datamodel.VirtualDirectory;

class DirectoryTreeFilterNode extends FilterNode {

    private static final Action collapseAll = new CollapseAction(
            NbBundle.getMessage(DirectoryTreeFilterNode.class, "DirectoryTreeFilterNode.action.collapseAll.text"));

    private static final Logger logger = Logger.getLogger(DirectoryTreeFilterNode.class.getName());

    DirectoryTreeFilterNode(Node arg, boolean createChildren) {
        super(arg, DirectoryTreeFilterChildren.createInstance(arg, createChildren),
                new ProxyLookup(Lookups.singleton(new OriginalNode(arg)),
                        arg.getLookup()));
    }

    @Override
    public String getDisplayName() {
        final Node orig = getOriginal();

        String name = orig.getDisplayName();

        //do not show children counts for non content nodes
        if (orig instanceof AbstractContentNode) {
            //show only for file content nodes
            AbstractFile file = getLookup().lookup(AbstractFile.class);
            if (file != null) {
                try {
                    final int numChildren = file.getChildrenCount();
                    
                    // left-to-right marks here are necessary to keep the count and parens together
                    // for mixed right-to-left and left-to-right names
                    name = name + " \u200E(\u200E" + numChildren + ")\u200E";
                } catch (TskCoreException ex) {
                    logger.log(Level.SEVERE, "Error getting children count to display for file: " + file, ex); //NON-NLS
                }

            }
        }

        return name;
    }

    @Override
    public Action[] getActions(boolean popup) {
        List<Action> actions = new ArrayList<>();

        final Content content = this.getLookup().lookup(Content.class);
        if (content != null) {
            actions.addAll(DirectoryTreeFilterNode.getDetailActions(content));

            //extract dir action
            Directory dir = this.getLookup().lookup(Directory.class);
            if (dir != null) {
                actions.add(ExtractAction.getInstance());
                actions.add(new AbstractAction(
                        NbBundle.getMessage(this.getClass(), "DirectoryTreeFilterNode.action.runIngestMods.text")) {
                            @Override
                            public void actionPerformed(ActionEvent e) {
                                final RunIngestModulesDialog ingestDialog = new RunIngestModulesDialog(dir);
                                ingestDialog.display();
                            }
                        });
            }

            final Image img = this.getLookup().lookup(Image.class);

            VirtualDirectory virtualDirectory = this.getLookup().lookup(VirtualDirectory.class);
            // determine if the virtualDireory is at root-level (Logical File Set).
            boolean isRootVD = false;
            if (virtualDirectory != null) {
                try {
                    if (virtualDirectory.getParent() == null) {
                        isRootVD = true;
                    }
                } catch (TskCoreException ex) {
                    logger.log(Level.WARNING, "Error determining the parent of the virtual directory", ex); // NON-NLS
                }
            }

            // 'run ingest' action and 'file search' action are added only if the
            // selected node is img node or a root level virtual directory.
            if (img != null || isRootVD) {
                actions.add(new FileSearchAction(
                        NbBundle.getMessage(this.getClass(), "DirectoryTreeFilterNode.action.openFileSrcByAttr.text")));
                actions.add(new AbstractAction(
                        NbBundle.getMessage(this.getClass(), "DirectoryTreeFilterNode.action.runIngestMods.text")) {
                            @Override
                            public void actionPerformed(ActionEvent e) {
                                final RunIngestModulesDialog ingestDialog = new RunIngestModulesDialog(Collections.<Content>singletonList(content));
                                ingestDialog.display();
                            }
                        });
            }
        }

        //check if delete actions should be added
        final Node orig = getOriginal();
        //TODO add a mechanism to determine if DisplayableItemNode
        if (orig instanceof DisplayableItemNode) {
            actions.addAll(getDeleteActions((DisplayableItemNode) orig));
        }

        actions.add(collapseAll);
        return actions.toArray(new Action[actions.size()]);
    }

    private static List<Action> getDeleteActions(DisplayableItemNode original) {
        List<Action> actions = new ArrayList<>();
        //actions.addAll(original.accept(getDeleteActionVisitor));
        return actions;
    }

    private static List<Action> getDetailActions(Content c) {
        List<Action> actions = new ArrayList<>();

        actions.addAll(ExplorerNodeActionVisitor.getActions(c));

        return actions;
    }

    //FIXME: this seems like a big hack -jm
    public static class OriginalNode {

        private final Node original;

        OriginalNode(Node original) {
            this.original = original;
        }

        Node getNode() {
            return original;
        }
    }
}