GeoArtifactsHelper.java

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/*
 * Sleuth Kit Data Model
 *
 * Copyright 2020 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.datamodel.blackboardutils;

import java.util.ArrayList;
import java.util.List;
import org.sleuthkit.datamodel.AbstractFile;
import org.sleuthkit.datamodel.Blackboard.BlackboardException;
import org.sleuthkit.datamodel.BlackboardArtifact;
import org.sleuthkit.datamodel.BlackboardAttribute;
import org.sleuthkit.datamodel.Content;
import org.sleuthkit.datamodel.SleuthkitCase;
import org.sleuthkit.datamodel.TskCoreException;
import org.sleuthkit.datamodel.blackboardutils.attributes.BlackboardJsonAttrUtil;
import org.sleuthkit.datamodel.blackboardutils.attributes.GeoWaypoints;
import org.sleuthkit.datamodel.blackboardutils.attributes.GeoTrackPoints;
import org.sleuthkit.datamodel.blackboardutils.attributes.GeoAreaPoints;

public final class GeoArtifactsHelper extends ArtifactHelperBase {

        private static final BlackboardAttribute.Type WAYPOINTS_ATTR_TYPE = new BlackboardAttribute.Type(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_GEO_WAYPOINTS);
        private static final BlackboardAttribute.Type TRACKPOINTS_ATTR_TYPE = new BlackboardAttribute.Type(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_GEO_TRACKPOINTS);
        private static final BlackboardAttribute.Type AREAPOINTS_ATTR_TYPE = new BlackboardAttribute.Type(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_GEO_AREAPOINTS);
        
        private static final BlackboardArtifact.Type GPS_TRACK_TYPE = new BlackboardArtifact.Type(BlackboardArtifact.ARTIFACT_TYPE.TSK_GPS_TRACK);
        private static final BlackboardArtifact.Type GPS_ROUTE_TYPE = new BlackboardArtifact.Type(BlackboardArtifact.ARTIFACT_TYPE.TSK_GPS_ROUTE);
        private static final BlackboardArtifact.Type GPS_AREA_TYPE = new BlackboardArtifact.Type(BlackboardArtifact.ARTIFACT_TYPE.TSK_GPS_AREA);
        
        private final String programName;

        public GeoArtifactsHelper(SleuthkitCase caseDb, String moduleName, String programName, Content srcContent) {
                super(caseDb, moduleName, srcContent);
                this.programName = programName;
        }

        public BlackboardArtifact addTrack(String trackName, GeoTrackPoints trackPoints, List<BlackboardAttribute> moreAttributes) throws TskCoreException, BlackboardException {
                if (trackPoints == null || trackPoints.isEmpty()) {
                        throw new IllegalArgumentException(String.format("addTrack was passed a null or empty list of track points"));
                }

                List<BlackboardAttribute> attributes = new ArrayList<>();

                if (trackName != null) {
                        attributes.add(new BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_NAME, getModuleName(), trackName));
                }

                // acquire necessary attribute.  If 'toAttribute' call throws an exception, an artifact will not be created for this instance.
                attributes.add(BlackboardJsonAttrUtil.toAttribute(TRACKPOINTS_ATTR_TYPE, getModuleName(), trackPoints));

                if (programName != null) {
                        attributes.add(new BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_PROG_NAME, getModuleName(), programName));
                }

                if (moreAttributes != null) {
                        attributes.addAll(moreAttributes);
                }

                Content content = getContent();
                BlackboardArtifact artifact = content.newDataArtifact(GPS_TRACK_TYPE, attributes);

                getSleuthkitCase().getBlackboard().postArtifact(artifact, getModuleName());

                return artifact;
        }

        public BlackboardArtifact addRoute(String routeName, Long creationTime, GeoWaypoints wayPoints, List<BlackboardAttribute> moreAttributes) throws TskCoreException, BlackboardException {
                if (wayPoints == null || wayPoints.isEmpty()) {
                        throw new IllegalArgumentException(String.format("addRoute was passed a null or empty list of waypoints"));
                }

                List<BlackboardAttribute> attributes = new ArrayList<>();

                attributes.add(BlackboardJsonAttrUtil.toAttribute(WAYPOINTS_ATTR_TYPE, getModuleName(), wayPoints));

                if (routeName != null) {
                        attributes.add(new BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_NAME, getModuleName(), routeName));
                }

                if (creationTime != null) {
                        attributes.add(new BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_DATETIME, getModuleName(), creationTime));
                }

                if (programName != null) {
                        attributes.add(new BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_PROG_NAME, getModuleName(), programName));
                }

                if (moreAttributes != null) {
                        attributes.addAll(moreAttributes);
                }

                Content content = getContent();
                BlackboardArtifact artifact = content.newDataArtifact(GPS_ROUTE_TYPE, attributes);
                
                getSleuthkitCase().getBlackboard().postArtifact(artifact, getModuleName());

                return artifact;
        }

        public BlackboardArtifact addArea(String areaName, GeoAreaPoints areaPoints, List<BlackboardAttribute> moreAttributes) throws TskCoreException, BlackboardException {
                if (areaPoints == null || areaPoints.isEmpty()) {
                        throw new IllegalArgumentException(String.format("addArea was passed a null or empty list of points"));
                }

                List<BlackboardAttribute> attributes = new ArrayList<>();
                attributes.add(BlackboardJsonAttrUtil.toAttribute(AREAPOINTS_ATTR_TYPE, getModuleName(), areaPoints));

                if (areaName != null) {
                        attributes.add(new BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_NAME, getModuleName(), areaName));
                }

                if (programName != null) {
                        attributes.add(new BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_PROG_NAME, getModuleName(), programName));
                }

                if (moreAttributes != null) {
                        attributes.addAll(moreAttributes);
                }

                Content content = getContent();
                BlackboardArtifact artifact = content.newDataArtifact(GPS_AREA_TYPE, attributes);
                
                getSleuthkitCase().getBlackboard().postArtifact(artifact, getModuleName());

                return artifact;
        }

}