TextMessageAnalyzer.java

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/*
 * Autopsy Forensic Browser
 *
 * Copyright 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.modules.android;

import java.io.File;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.List;
import java.util.logging.Level;

import org.openide.util.NbBundle;
import org.sleuthkit.autopsy.casemodule.Case;
import org.sleuthkit.autopsy.casemodule.services.Blackboard;
import org.sleuthkit.autopsy.casemodule.services.FileManager;
import org.sleuthkit.autopsy.coreutils.Logger;
import org.sleuthkit.autopsy.coreutils.MessageNotifyUtil;
import org.sleuthkit.autopsy.datamodel.ContentUtils;
import org.sleuthkit.datamodel.AbstractFile;
import org.sleuthkit.datamodel.BlackboardArtifact;
import org.sleuthkit.datamodel.BlackboardAttribute;
import org.sleuthkit.datamodel.Content;
import org.sleuthkit.datamodel.TskCoreException;

class TextMessageAnalyzer {

    private static final String moduleName = AndroidModuleFactory.getModuleName();
    private static final Logger logger = Logger.getLogger(TextMessageAnalyzer.class.getName());
    private static Blackboard blackboard;

    public static void findTexts(Content dataSource, FileManager fileManager) {
        blackboard = Case.getCurrentCase().getServices().getBlackboard();
        try {

            List<AbstractFile> absFiles = fileManager.findFiles(dataSource, "mmssms.db"); //NON-NLS
            for (AbstractFile abstractFile : absFiles) {
                try {
                    File jFile = new File(Case.getCurrentCase().getTempDirectory(), abstractFile.getName());
                    ContentUtils.writeToFile(abstractFile, jFile);
                    findTextsInDB(jFile.toString(), abstractFile);
                } catch (Exception e) {
                    logger.log(Level.SEVERE, "Error parsing text messages", e); //NON-NLS
                }
            }
        } catch (TskCoreException e) {
            logger.log(Level.SEVERE, "Error finding text messages", e); //NON-NLS
        }
    }

    private static void findTextsInDB(String DatabasePath, AbstractFile f) {
        Connection connection = null;
        ResultSet resultSet = null;
        Statement statement = null;

        if (DatabasePath == null || DatabasePath.isEmpty()) {
            return;
        }
        try {
            Class.forName("org.sqlite.JDBC"); //NON-NLS //load JDBC driver
            connection = DriverManager.getConnection("jdbc:sqlite:" + DatabasePath); //NON-NLS
            statement = connection.createStatement();
        } catch (ClassNotFoundException | SQLException e) {
            logger.log(Level.SEVERE, "Error opening database", e); //NON-NLS
            return;
        }

        try {
            resultSet = statement.executeQuery(
                    "SELECT address,date,read,type,subject,body FROM sms;"); //NON-NLS

            String address; // may be phone number, or other addresses

            String direction; // message received in inbox = 1, message sent = 2
            String subject;//message subject
            Integer read; // may be unread = 0, read = 1
            String body; //message body
            while (resultSet.next()) {
                address = resultSet.getString("address"); //NON-NLS
                Long date = Long.valueOf(resultSet.getString("date")) / 1000; //NON-NLS

                read = resultSet.getInt("read"); //NON-NLS
                subject = resultSet.getString("subject"); //NON-NLS
                body = resultSet.getString("body"); //NON-NLS

                BlackboardArtifact bba = f.newArtifact(BlackboardArtifact.ARTIFACT_TYPE.TSK_MESSAGE); //create Message artifact and then add attributes from result set.
                if (resultSet.getString("type").equals("1")) { //NON-NLS
                    bba.addAttribute(new BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_DIRECTION, moduleName,
                            NbBundle.getMessage(TextMessageAnalyzer.class,
                                    "TextMessageAnalyzer.bbAttribute.incoming")));
                    bba.addAttribute(new BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_PHONE_NUMBER_FROM, moduleName, address));
                } else {
                    bba.addAttribute(new BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_DIRECTION, moduleName,
                            NbBundle.getMessage(TextMessageAnalyzer.class,
                                    "TextMessageAnalyzer.bbAttribute.outgoing")));
                    bba.addAttribute(new BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_PHONE_NUMBER_TO, moduleName, address));
                }
                bba.addAttribute(new BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_DATETIME, moduleName, date));

                bba.addAttribute(new BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_READ_STATUS, moduleName, read));
                bba.addAttribute(new BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_SUBJECT, moduleName, subject));
                bba.addAttribute(new BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_TEXT, moduleName, body));
                bba.addAttribute(new BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_MESSAGE_TYPE, moduleName,
                        NbBundle.getMessage(TextMessageAnalyzer.class,
                                "TextMessageAnalyzer.bbAttribute.smsMessage")));
                
                try {
                    // index the artifact for keyword search
                    blackboard.indexArtifact(bba);
                } catch (Blackboard.BlackboardException ex) {
                    logger.log(Level.SEVERE, NbBundle.getMessage(Blackboard.class, "Blackboard.unableToIndexArtifact.error.msg", bba.getDisplayName()), ex); //NON-NLS
                    MessageNotifyUtil.Notify.error(
                        NbBundle.getMessage(Blackboard.class, "Blackboard.unableToIndexArtifact.exception.msg"), bba.getDisplayName());
                }
            }
        } catch (Exception e) {
            logger.log(Level.SEVERE, "Error parsing text messages to Blackboard", e); //NON-NLS
        } finally {
            try {
                if (resultSet != null) {
                    resultSet.close();
                }
                statement.close();
                connection.close();
            } catch (Exception e) {
                logger.log(Level.SEVERE, "Error closing database", e); //NON-NLS
            }
        }
    }
}