RawDSProcessor.java

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/*
 * Autopsy Forensic Browser
 *
 * Copyright 2011-2018 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.datasourceprocessors;

import java.io.File;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.List;
import java.util.UUID;
import javax.swing.JPanel;
import javax.swing.filechooser.FileFilter;
import org.openide.util.NbBundle.Messages;
import org.openide.util.lookup.ServiceProvider;
import org.openide.util.lookup.ServiceProviders;
import org.sleuthkit.autopsy.casemodule.GeneralFilter;
import org.sleuthkit.autopsy.corecomponentinterfaces.DataSourceProcessorProgressMonitor;
import org.sleuthkit.autopsy.corecomponentinterfaces.DataSourceProcessorCallback;
import org.sleuthkit.autopsy.corecomponentinterfaces.DataSourceProcessor;

@ServiceProviders(value={
    @ServiceProvider(service=DataSourceProcessor.class),
    @ServiceProvider(service=AutoIngestDataSourceProcessor.class)}
)
public class RawDSProcessor implements DataSourceProcessor, AutoIngestDataSourceProcessor {

    private final RawDSInputPanel configPanel;
    private static final GeneralFilter rawFilter = new GeneralFilter(GeneralFilter.RAW_IMAGE_EXTS, GeneralFilter.RAW_IMAGE_DESC);
    private static final GeneralFilter encaseFilter = new GeneralFilter(GeneralFilter.ENCASE_IMAGE_EXTS, GeneralFilter.ENCASE_IMAGE_DESC);   
    private static final List<FileFilter> filtersList = new ArrayList<>();
    static {
        filtersList.add(rawFilter);
        filtersList.add(encaseFilter);
    }
    
    // By default, split image into 2GB unallocated space chunks
    private static final long DEFAULT_CHUNK_SIZE = 2000000000L; // 2 GB
    
    /*
     * Constructs a Raw data source processor that implements the
     * DataSourceProcessor service provider interface to allow integration with
     * the add data source wizard. It also provides a run method overload to
     * allow it to be used independently of the wizard.
     */
    public RawDSProcessor() {
        configPanel = RawDSInputPanel.createInstance(RawDSProcessor.class.getName());
    }

    @Messages({"RawDSProcessor.dataSourceType=Unallocated Space Image File"})
    public static String getType() {
        return Bundle.RawDSProcessor_dataSourceType();
    }

    @Override
    public String getDataSourceType() {
        return Bundle.RawDSProcessor_dataSourceType();
    }

    @Override
    public JPanel getPanel() {
        configPanel.readSettings();
        configPanel.select();
        return configPanel;
    }

    @Override
    public boolean isPanelValid() {
        return configPanel.validatePanel();
    }

    @Override
    public void run(DataSourceProcessorProgressMonitor progressMonitor, DataSourceProcessorCallback callback) {
        configPanel.storeSettings();
        run(UUID.randomUUID().toString(), configPanel.getImageFilePath(), configPanel.getTimeZone(), configPanel.getChunkSize(), progressMonitor, callback);
    }

    private void run(String deviceId, String imageFilePath, String timeZone, long chunkSize, DataSourceProcessorProgressMonitor progressMonitor, DataSourceProcessorCallback callback) {
        AddRawImageTask addImageTask = new AddRawImageTask(deviceId, imageFilePath, timeZone, chunkSize, progressMonitor, callback);
        new Thread(addImageTask).start();
    }

    @Override
    public void cancel() {
    }

    @Override
    public void reset() {
        configPanel.reset();
    }
    
    private static boolean isAcceptedByFiler(File file, List<FileFilter> filters) {
        for (FileFilter filter : filters) {
            if (filter.accept(file)) {
                return true;
            }
        }
        return false;
    }

    @Override
    public int canProcess(Path dataSourcePath) throws AutoIngestDataSourceProcessorException {
        
        // only accept files
        if (!new File(dataSourcePath.toString()).isFile()) {
            return 0;
        }
        
        // check file extension for supported types
        if (!isAcceptedByFiler(dataSourcePath.toFile(), filtersList)) {
            return 0;
        }

        return 2;
    }

    @Override
    public void process(String deviceId, Path dataSourcePath, DataSourceProcessorProgressMonitor progressMonitor, DataSourceProcessorCallback callBack) {
        run(deviceId, dataSourcePath.toString(), Calendar.getInstance().getTimeZone().getID(), DEFAULT_CHUNK_SIZE, progressMonitor, callBack);
    }

}