ContactAnalyzer.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.DatabaseMetaData;
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 ContactAnalyzer {

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

    public static void findContacts(Content dataSource, FileManager fileManager) {

        List<AbstractFile> absFiles;
        try {
            absFiles = fileManager.findFiles(dataSource, "contacts.db"); //NON-NLS
            absFiles.addAll(fileManager.findFiles(dataSource, "contacts2.db")); //NON-NLS
            if (absFiles.isEmpty()) {
                return;
            }
            for (AbstractFile AF : absFiles) {
                try {
                    File jFile = new File(Case.getCurrentCase().getTempDirectory(), AF.getName());
                    ContentUtils.writeToFile(AF, jFile);
                    findContactsInDB(jFile.toString(), AF);
                } catch (Exception e) {
                    logger.log(Level.SEVERE, "Error parsing Contacts", e); //NON-NLS
                }
            }
        } catch (TskCoreException e) {
            logger.log(Level.SEVERE, "Error finding Contacts", e); //NON-NLS
        }
    }

    private static void findContactsInDB(String databasePath, AbstractFile f) {
        Connection connection = null;
        ResultSet resultSet = null;
        Statement statement = null;
        Blackboard blackboard = Case.getCurrentCase().getServices().getBlackboard();

        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 {
            // get display_name, mimetype(email or phone number) and data1 (phonenumber or email address depending on mimetype)
            //sorted by name, so phonenumber/email would be consecutive for a person if they exist.
            // check if contacts.name_raw_contact_id exists. Modify the query accordingly.
            Boolean column_found = false;
            DatabaseMetaData metadata = connection.getMetaData();
            ResultSet columnListResultSet = metadata.getColumns(null, null, "contacts", null); //NON-NLS
            while (columnListResultSet.next()) {
                if (columnListResultSet.getString("COLUMN_NAME").equals("name_raw_contact_id")) { //NON-NLS
                    column_found = true;
                    break;
                }
            }
            if (column_found) {
                resultSet = statement.executeQuery(
                        "SELECT mimetype,data1, name_raw_contact.display_name AS display_name \n" //NON-NLS
                        + "FROM raw_contacts JOIN contacts ON (raw_contacts.contact_id=contacts._id) \n" //NON-NLS
                        + "JOIN raw_contacts AS name_raw_contact ON(name_raw_contact_id=name_raw_contact._id) " //NON-NLS
                        + "LEFT OUTER JOIN data ON (data.raw_contact_id=raw_contacts._id) \n" //NON-NLS
                        + "LEFT OUTER JOIN mimetypes ON (data.mimetype_id=mimetypes._id) \n" //NON-NLS
                        + "WHERE mimetype = 'vnd.android.cursor.item/phone_v2' OR mimetype = 'vnd.android.cursor.item/email_v2'\n" //NON-NLS
                        + "ORDER BY name_raw_contact.display_name ASC;"); //NON-NLS
            } else {
                resultSet = statement.executeQuery(
                        "SELECT mimetype,data1, raw_contacts.display_name AS display_name \n" //NON-NLS
                        + "FROM raw_contacts JOIN contacts ON (raw_contacts.contact_id=contacts._id) \n" //NON-NLS
                        + "LEFT OUTER JOIN data ON (data.raw_contact_id=raw_contacts._id) \n" //NON-NLS
                        + "LEFT OUTER JOIN mimetypes ON (data.mimetype_id=mimetypes._id) \n" //NON-NLS
                        + "WHERE mimetype = 'vnd.android.cursor.item/phone_v2' OR mimetype = 'vnd.android.cursor.item/email_v2'\n" //NON-NLS
                        + "ORDER BY raw_contacts.display_name ASC;"); //NON-NLS
            }

            BlackboardArtifact bba;
            bba = f.newArtifact(BlackboardArtifact.ARTIFACT_TYPE.TSK_CONTACT);
            String name;
            String oldName = "";
            String mimetype; // either phone or email
            String data1; // the phone number or email
            while (resultSet.next()) {
                name = resultSet.getString("display_name"); //NON-NLS
                data1 = resultSet.getString("data1"); //NON-NLS
                mimetype = resultSet.getString("mimetype"); //NON-NLS
                if (name.equals(oldName) == false) {
                    bba = f.newArtifact(BlackboardArtifact.ARTIFACT_TYPE.TSK_CONTACT);
                    bba.addAttribute(new BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_NAME, moduleName, name));
                }
                if (mimetype.equals("vnd.android.cursor.item/phone_v2")) { //NON-NLS
                    bba.addAttribute(new BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_PHONE_NUMBER, moduleName, data1));
                } else {
                    bba.addAttribute(new BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_EMAIL, moduleName, data1));
                }
                oldName = name;
                
                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 (SQLException e) {
            logger.log(Level.WARNING, "Unable to execute contacts SQL query against {0} : {1}", new Object[]{databasePath, e}); //NON-NLS
        } catch (TskCoreException e) {
            logger.log(Level.SEVERE, "Error posting 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
            }
        }
    }
}