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Remove Python Android Module
Remove Python Android Module
This commit is contained in:
Mark McKinnon
@@ -1,521 +0,0 @@
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"""
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Autopsy Forensic Browser
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Copyright 2019-2020 Basis Technology Corp.
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Contact: carrier <at> sleuthkit <dot> org
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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"""
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import json
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import traceback
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import general
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import ast
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from java.io import File
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from java.lang import Class
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from java.lang import ClassNotFoundException
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from java.lang import Long
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from java.lang import String
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from java.sql import ResultSet
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from java.sql import SQLException
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from java.sql import Statement
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from java.util.logging import Level
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from java.util import ArrayList
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from org.apache.commons.codec.binary import Base64
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from org.sleuthkit.autopsy.casemodule import Case
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from org.sleuthkit.autopsy.casemodule import NoCurrentCaseException
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from org.sleuthkit.autopsy.coreutils import Logger
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from org.sleuthkit.autopsy.coreutils import MessageNotifyUtil
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from org.sleuthkit.autopsy.coreutils import AppSQLiteDB
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from org.sleuthkit.autopsy.datamodel import ContentUtils
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from org.sleuthkit.autopsy.ingest import IngestJobContext
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from org.sleuthkit.datamodel import AbstractFile
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from org.sleuthkit.datamodel import BlackboardArtifact
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from org.sleuthkit.datamodel import BlackboardAttribute
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from org.sleuthkit.datamodel import Content
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from org.sleuthkit.datamodel import TskCoreException
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from org.sleuthkit.datamodel.Blackboard import BlackboardException
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from org.sleuthkit.datamodel import Account
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from org.sleuthkit.datamodel.blackboardutils import CommunicationArtifactsHelper
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from org.sleuthkit.datamodel.blackboardutils.attributes import MessageAttachments
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from org.sleuthkit.datamodel.blackboardutils.attributes.MessageAttachments import FileAttachment
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from org.sleuthkit.datamodel.blackboardutils.attributes.MessageAttachments import URLAttachment
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from org.sleuthkit.datamodel.blackboardutils.CommunicationArtifactsHelper import MessageReadStatus
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from org.sleuthkit.datamodel.blackboardutils.CommunicationArtifactsHelper import CommunicationDirection
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from org.sleuthkit.datamodel.blackboardutils.CommunicationArtifactsHelper import CallMediaType
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class FBMessengerAnalyzer(general.AndroidComponentAnalyzer):
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"""
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Facebook Messenger is a messaging application for Facebook users.
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It can be used to have one-to-one as well as group message conversations -
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text, send photos videos and other media file. It can also be used to make
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phone calls - audio as well as video.
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This module finds the SQLite DB for FB messenger, parses the DB for contacts,
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messages, and call logs and creates artifacts.
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FB messenger requires Facebook accounts. Although Facebook and Facebook Messenger are
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two different applications with separate packages, their database structure is very similar
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and FB messenger seems to share the FB database if FB is inatalled.
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FB assigns each user a unique FB id, fbid - a long numeric id.
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Each user also has a display name.
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FB uses a notion of user key, which is of the form FACEBOOK:<fbid>
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FB messenger version 239.0.0.41 has the following database structure:
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- contacts_db2
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-- A contacts table that stores the contacts/friends.
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- threads_db2
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-- A messages table to store the messages
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--- A sender column - this is a JSON structure which has a the FB user key of sender.
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--- A attachments column - a JSON structure that has details of the attachments,
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--- A msg_type column: message type - indicates whether its a text/mms message or a audio/video call
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Following values have been observed:
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-1: UNKNOWN - need more research, have no meaningful text though.
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observed for 1-to-1, Group message hreads as well as Montage (wall messages)
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0: User messages in 1-to-1, Group and montage threads
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8: System generated messages in 1-to-1, Group and montage threads
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e.g. "You created a the group", "You can now talk to XYZ".....
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9: System generated event records for one to one calls ??
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* have no text,
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* admin_text_thread_rtc_event has the specific event
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"one-to-one-call-ended", "missed-call" (havent seen a "one-to-one-call-started" event??)
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203: System generated event records for group calls ??
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* have no text,
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* admin_text_thread_rtc_event has the specific event
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"group-call-started", "group-call_ended"
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--- A pending_send_media_attachment - a JSON structure that has details of attachments that may or may not have been sent.
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--- A admin_text_thread_rtc_event column - has specific text events such as- "one-on-one-call-ended"
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--- A thread_key column - identifies the message thread
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--- A timestamp_ms column - date/time message was sent
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--- A text column - message text, if applicable
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-- A thread_participants table to identify participants in a particular thread
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--- A thread_key column - identifies a message thread
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--- A user_key column to identify a particpant in the thread
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-- A thread_users to identify the user details, primarliy name, of a user that has been a particiapnt in any thread
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--- A user_key column - identifies a unique user
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--- A name column - user display name
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"""
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def __init__(self):
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self._logger = Logger.getLogger(self.__class__.__name__)
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self._FB_MESSENGER_PACKAGE_NAME = "com.facebook.orca"
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self._FACEBOOK_PACKAGE_NAME = "com.facebook.katana"
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self._MODULE_NAME = "FB Messenger Analyzer"
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self._MESSAGE_TYPE = "Facebook Messenger"
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self._VERSION = "239.0.0.41" ## FB version number. Did not find independent version number in FB Messenger
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self.selfAccountId = None
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self.current_case = None
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## Analyze contacts
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def analyzeContacts(self, dataSource, fileManager, context):
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## FB messenger and FB have same database structure for contacts.
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## In our dataset, the FB Messenger database was empty.
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## But the FB database had the data.
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contactsDbs = AppSQLiteDB.findAppDatabases(dataSource, "contacts_db2", True, self._FACEBOOK_PACKAGE_NAME)
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for contactsDb in contactsDbs:
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try:
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## The device owner's FB account details can be found in the contacts table in a row with added_time_ms of 0.
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selfAccountResultSet = contactsDb.runQuery("SELECT fbid, display_name FROM contacts WHERE added_time_ms = 0")
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if selfAccountResultSet:
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if not self.selfAccountId:
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self.selfAccountId = selfAccountResultSet.getString("fbid")
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if self.selfAccountId is not None:
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contactsDBHelper = CommunicationArtifactsHelper(self.current_case.getSleuthkitCase(),
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self._MODULE_NAME, contactsDb.getDBFile(),
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Account.Type.FACEBOOK, Account.Type.FACEBOOK, self.selfAccountId )
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else:
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contactsDBHelper = CommunicationArtifactsHelper(self.current_case.getSleuthkitCase(),
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self._MODULE_NAME, contactsDb.getDBFile(),
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Account.Type.FACEBOOK)
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## get the other contacts/friends
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contactsResultSet = contactsDb.runQuery("SELECT fbid, display_name, added_time_ms FROM contacts WHERE added_time_ms <> 0")
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if contactsResultSet is not None:
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while contactsResultSet.next():
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fbid = contactsResultSet.getString("fbid")
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contactName = contactsResultSet.getString("display_name")
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dateCreated = contactsResultSet.getLong("added_time_ms") / 1000
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## create additional attributes for contact.
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additionalAttributes = ArrayList();
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additionalAttributes.add(BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_ID, self._MODULE_NAME, fbid))
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additionalAttributes.add(BlackboardAttribute(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_DATETIME_CREATED, self._MODULE_NAME, dateCreated))
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contactsDBHelper.addContact( contactName, ## contact name
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"", ## phone
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"", ## home phone
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"", ## mobile
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"", ## email
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additionalAttributes)
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except SQLException as ex:
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self._logger.log(Level.WARNING, "Error processing query result for account", ex)
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self._logger.log(Level.WARNING, traceback.format_exc())
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except TskCoreException as ex:
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self._logger.log(Level.SEVERE, "Failed to add FB Messenger contact artifacts.", ex)
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self._logger.log(Level.SEVERE, traceback.format_exc())
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except BlackboardException as ex:
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self._logger.log(Level.WARNING, "Failed to post artifacts.", ex)
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self._logger.log(Level.WARNING, traceback.format_exc())
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finally:
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contactsDb.close()
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## Extracts recipeint id from 'user_key' column and adds recipient to given list,
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## if the recipeint id is not the same as sender id
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def addRecipientToList(self, user_key, senderId, recipientList):
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if user_key is not None:
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recipientId = user_key.replace('FACEBOOK:', '')
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if recipientId != senderId:
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recipientList.append(recipientId)
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## Extracts sender id from the json in 'sender' column.
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def getSenderIdFromJson(self, senderJsonStr):
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senderId = None;
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if senderJsonStr is not None:
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sender_dict = json.loads(senderJsonStr)
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senderId = sender_dict['user_key']
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senderId = senderId.replace('FACEBOOK:', '')
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return senderId
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## determines communication direction by comparing senderId with selfAccountId
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def deduceDirectionFromSenderId(self, senderId):
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direction = CommunicationDirection.UNKNOWN
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if senderId is not None:
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if senderId == self.selfAccountId:
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direction = CommunicationDirection.OUTGOING
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else:
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direction = CommunicationDirection.INCOMING
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return direction
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## Get the arrayList from the json passed in
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def getJPGListFromJson(self, jpgJson):
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jpgArray = ArrayList()
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# The urls attachment will come across as unicode unless we use ast.literal_eval to change it to a dictionary
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jpgDict = ast.literal_eval(jpgJson)
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for jpgPreview in jpgDict.iterkeys():
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# Need to use ast.literal_eval so that the string can be converted to a dictionary
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jpgUrlDict = ast.literal_eval(jpgDict[jpgPreview])
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jpgArray.add(URLAttachment(jpgUrlDict["src"]))
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return jpgArray
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## Analyzes messages
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def analyzeMessages(self, threadsDb, threadsDBHelper):
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try:
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## Messages are found in the messages table.
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## This query filters messages by msg_type to only get actual user created conversation messages (msg_type 0).
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## The participant ids can be found in the thread_participants table.
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## Participant names are found in thread_users table.
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## Joining these tables produces multiple rows per message, one row for each recipient.
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## The result set is processed to collect the multiple recipients for a given message.
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sqlString = """
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SELECT msg_id, text, sender, timestamp_ms, msg_type, messages.thread_key as thread_key,
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snippet, thread_participants.user_key as user_key, thread_users.name as name,
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attachments, pending_send_media_attachment
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FROM messages
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JOIN thread_participants ON messages.thread_key = thread_participants.thread_key
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JOIN thread_users ON thread_participants.user_key = thread_users.user_key
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WHERE msg_type = 0
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ORDER BY msg_id
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"""
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messagesResultSet = threadsDb.runQuery(sqlString)
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if messagesResultSet is not None:
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oldMsgId = None
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direction = CommunicationDirection.UNKNOWN
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fromId = None
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recipientIdsList = None
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timeStamp = -1
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msgText = ""
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threadId = ""
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messageAttachments = None
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currentCase = Case.getCurrentCaseThrows()
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while messagesResultSet.next():
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msgId = messagesResultSet.getString("msg_id")
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# new msg begins when msgId changes
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if msgId != oldMsgId:
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# Create message artifact with collected attributes
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if oldMsgId is not None:
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messageArtifact = threadsDBHelper.addMessage(
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self._MESSAGE_TYPE,
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direction,
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fromId,
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recipientIdsList,
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timeStamp,
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MessageReadStatus.UNKNOWN,
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"", # subject
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msgText,
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threadId)
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if (messageAttachments is not None):
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threadsDBHelper.addAttachments(messageArtifact, messageAttachments)
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messageAttachments = None
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oldMsgId = msgId
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# New message - collect all attributes
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recipientIdsList = []
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## get sender id by parsing JSON in sender column
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fromId = self.getSenderIdFromJson(messagesResultSet.getString("sender"))
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direction = self.deduceDirectionFromSenderId(fromId)
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# Get recipient and add to list
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self.addRecipientToList(messagesResultSet.getString("user_key"), fromId,
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recipientIdsList)
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timeStamp = messagesResultSet.getLong("timestamp_ms") / 1000
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# Get msg text
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# Sometimes there may not be an explict msg text,
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# but an app generated snippet instead
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msgText = messagesResultSet.getString("text")
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if not msgText:
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msgText = messagesResultSet.getString("snippet")
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# Get attachments and pending attachments if they exist
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attachment = messagesResultSet.getString("attachments")
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pendingAttachment = messagesResultSet.getString("pending_send_media_attachment")
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urlAttachments = ArrayList()
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fileAttachments = ArrayList()
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if ((attachment is not None) or (pendingAttachment is not None)):
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if (attachment is not None):
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attachmentDict = json.loads(attachment)[0]
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if (attachmentDict["mime_type"] == "image/jpeg"):
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urls = attachmentDict.get("urls", None)
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if (urls is not None):
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urlAttachments = self.getJPGListFromJson(urls)
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elif (attachmentDict["mime_type"] == "video/mp4"):
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# filename does not have an associated path with it so it will be ignored
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urls = attachmentDict.get("urls", None)
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if (urls is not None):
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urlAttachments = self.getJPGListFromJson(urls)
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video_data_url = attachmentDict.get("video_data_url", None)
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if (video_data_url is not None):
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urlAttachments.add(URLAttachment(video_data_url))
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video_data_thumbnail_url = attachmentDict.get("video_data_thumbnail_url", None)
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if (video_data_thumbnail_url is not None):
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urlAttachments.add(URLAttachment(video_data_thumbnail_url))
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elif (attachmentDict["mime_type"] == "audio/mpeg"):
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audioUri = attachmentDict.get("audio_uri", None)
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if (audioUri is None or audioUri == ""):
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continue
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else:
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fileAttachments.add(FileAttachment(currentCase.getSleuthkitCase(), threadsDb.getDBFile().getDataSource(), audioUri.replace("file://","")))
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else:
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self._logger.log(Level.INFO, "Attachment type not handled: " + attachmentDict["mime_type"])
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if (pendingAttachment is not None):
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pendingAttachmentDict = json.loads(pendingAttachment)[0]
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pendingAttachmentUri = pendingAttachmentDict.get("uri", None)
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if (pendingAttachmentUri is not None):
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fileAttachments.add(FileAttachment(currentCase.getSleuthkitCase(), threadsDb.getDBFile().getDataSource(), pendingAttachmentUri.replace("file://","")))
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messageAttachments = MessageAttachments(fileAttachments, urlAttachments)
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threadId = messagesResultSet.getString("thread_key")
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else: # same msgId as last, just collect recipient from current row
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self.addRecipientToList(messagesResultSet.getString("user_key"), fromId,
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recipientIdsList)
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# at the end of the loop, add last message
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messageArtifact = threadsDBHelper.addMessage(
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self._MESSAGE_TYPE,
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direction,
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fromId,
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recipientIdsList,
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timeStamp,
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MessageReadStatus.UNKNOWN,
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"", # subject
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msgText,
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threadId)
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except SQLException as ex:
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self._logger.log(Level.WARNING, "Error processing query result for FB Messenger messages.", ex)
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self._logger.log(Level.WARNING, traceback.format_exc())
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except TskCoreException as ex:
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self._logger.log(Level.SEVERE, "Failed to add FB Messenger message artifacts.", ex)
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self._logger.log(Level.SEVERE, traceback.format_exc())
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except BlackboardException as ex:
|
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self._logger.log(Level.WARNING, "Failed to post artifacts.", ex)
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self._logger.log(Level.WARNING, traceback.format_exc())
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||||
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## Analyzes call logs
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def analyzeCallLogs(self, threadsDb, threadsDBHelper):
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try:
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||||
## Call logs are found in the messages table.
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## msg_type indicates type of call:
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## 9: one to one calls
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## 203: group call
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## 1-to-1 calls only have a call_ended record.
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## group calls have a call_started_record as well as call_ended recorded, with *different* message ids.
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## all the data we need can be found in the call_ended record.
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sqlString = """
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SELECT msg_id, text, sender, timestamp_ms, msg_type, admin_text_thread_rtc_event,
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generic_admin_message_extensible_data,
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messages.thread_key as thread_key,
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thread_participants.user_key as user_key,
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thread_users.name as name
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FROM messages
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JOIN thread_participants ON messages.thread_key = thread_participants.thread_key
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JOIN thread_users ON thread_participants.user_key = thread_users.user_key
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WHERE msg_type = 9 OR (msg_type = 203 AND admin_text_thread_rtc_event = 'group_call_ended')
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ORDER BY msg_id
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"""
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messagesResultSet = threadsDb.runQuery(sqlString)
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if messagesResultSet is not None:
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oldMsgId = None
|
||||
|
||||
direction = CommunicationDirection.UNKNOWN
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||||
callerId = None
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calleeIdsList = None
|
||||
startTimeStamp = -1
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||||
endTimeStamp = -1
|
||||
duration = 0
|
||||
mediaType = CallMediaType.AUDIO
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||||
|
||||
while messagesResultSet.next():
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msgId = messagesResultSet.getString("msg_id")
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||||
|
||||
# new call begins when msgId changes
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||||
if msgId != oldMsgId:
|
||||
# Create call log artifact with collected attributes
|
||||
if oldMsgId is not None:
|
||||
messageArtifact = threadsDBHelper.addCalllog(
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||||
direction,
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||||
callerId,
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||||
calleeIdsList,
|
||||
startTimeStamp,
|
||||
endTimeStamp,
|
||||
mediaType )
|
||||
|
||||
oldMsgId = msgId
|
||||
|
||||
# New message - collect all attributes
|
||||
calleeIdsList = []
|
||||
|
||||
## get caller id by parsing JSON in sender column
|
||||
callerId = self.getSenderIdFromJson(messagesResultSet.getString("sender"))
|
||||
direction = self.deduceDirectionFromSenderId(callerId)
|
||||
|
||||
# Get recipient and add to list
|
||||
self.addRecipientToList(messagesResultSet.getString("user_key"), callerId,
|
||||
calleeIdsList)
|
||||
|
||||
# the timestamp from call ended msg is used as end timestamp
|
||||
endTimeStamp = messagesResultSet.getLong("timestamp_ms") / 1000
|
||||
|
||||
# parse the generic_admin_message_extensible_data JSON to extract the duration and video fields
|
||||
adminDataJsonStr = messagesResultSet.getString("generic_admin_message_extensible_data")
|
||||
if adminDataJsonStr is not None:
|
||||
adminData_dict = json.loads(adminDataJsonStr)
|
||||
duration = adminData_dict['call_duration'] # call duration in seconds
|
||||
isVideo = adminData_dict['video']
|
||||
if isVideo:
|
||||
mediaType = CallMediaType.VIDEO
|
||||
|
||||
startTimeStamp = endTimeStamp - duration
|
||||
|
||||
else: # same msgId as last, just collect callee from current row
|
||||
self.addRecipientToList(messagesResultSet.getString("user_key"), callerId,
|
||||
calleeIdsList)
|
||||
|
||||
# at the end of the loop, add last message
|
||||
messageArtifact = threadsDBHelper.addCalllog(
|
||||
direction,
|
||||
callerId,
|
||||
calleeIdsList,
|
||||
startTimeStamp,
|
||||
endTimeStamp,
|
||||
mediaType )
|
||||
|
||||
except SQLException as ex:
|
||||
self._logger.log(Level.WARNING, "Error processing query result for FB Messenger call logs.", ex)
|
||||
self._logger.log(Level.WARNING, traceback.format_exc())
|
||||
except TskCoreException as ex:
|
||||
self._logger.log(Level.SEVERE, "Failed to add FB Messenger call log artifacts.", ex)
|
||||
self._logger.log(Level.SEVERE, traceback.format_exc())
|
||||
except BlackboardException as ex:
|
||||
self._logger.log(Level.WARNING, "Failed to post FB Messenger call log artifacts.", ex)
|
||||
self._logger.log(Level.WARNING, traceback.format_exc())
|
||||
|
||||
|
||||
## Analyze messages and call log threads
|
||||
def analyzeMessagesAndCallLogs(self, dataSource, fileManager, context):
|
||||
threadsDbs = AppSQLiteDB.findAppDatabases(dataSource, "threads_db2", True, self._FB_MESSENGER_PACKAGE_NAME)
|
||||
for threadsDb in threadsDbs:
|
||||
try:
|
||||
if self.selfAccountId is not None:
|
||||
threadsDBHelper = CommunicationArtifactsHelper(self.current_case.getSleuthkitCase(),
|
||||
self._MODULE_NAME, threadsDb.getDBFile(),
|
||||
Account.Type.FACEBOOK, Account.Type.FACEBOOK, self.selfAccountId )
|
||||
else:
|
||||
threadsDBHelper = CommunicationArtifactsHelper(self.current_case.getSleuthkitCase(),
|
||||
self._MODULE_NAME, threadsDb.getDBFile(),
|
||||
Account.Type.FACEBOOK)
|
||||
|
||||
self.analyzeMessages(threadsDb, threadsDBHelper)
|
||||
self.analyzeCallLogs(threadsDb, threadsDBHelper)
|
||||
|
||||
except TskCoreException as ex:
|
||||
self._logger.log(Level.SEVERE, "Failed to to create CommunicationArtifactsHelper for FB Messenger.", ex)
|
||||
self._logger.log(Level.SEVERE, traceback.format_exc())
|
||||
finally:
|
||||
threadsDb.close()
|
||||
|
||||
def analyze(self, dataSource, fileManager, context):
|
||||
try:
|
||||
self.current_case = Case.getCurrentCaseThrows()
|
||||
except NoCurrentCaseException as ex:
|
||||
self._logger.log(Level.WARNING, "No case currently open.", ex)
|
||||
self._logger.log(Level.WARNING, traceback.format_exc())
|
||||
return
|
||||
|
||||
self.analyzeContacts(dataSource, fileManager, context)
|
||||
self.analyzeMessagesAndCallLogs(dataSource, fileManager, context)
|
||||
|
||||
|
||||
Reference in New Issue
Block a user