mirror of
https://github.com/overcuriousity/autopsy-flatpak.git
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363 lines
16 KiB
Python
363 lines
16 KiB
Python
"""
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Autopsy Forensic Browser
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Copyright 2019 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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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 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.coreutils import Logger
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from org.sleuthkit.autopsy.coreutils import AppSQLiteDB
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from org.sleuthkit.autopsy.coreutils import AppDBParserHelper
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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 import Account
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from TskMessagesParser import TskMessagesParser
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from TskContactsParser import TskContactsParser
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from TskCallLogsParser import TskCallLogsParser
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import traceback
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import general
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class SkypeAnalyzer(general.AndroidComponentAnalyzer):
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"""
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Parses the Skype App databases for TSK contacts, message
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and calllog artifacts.
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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._SKYPE_PACKAGE_NAME = "com.skype.raider"
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self._PARSER_NAME = "Skype Parser"
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self._VERSION = "8.15.0.428"
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def get_account_instance(self, skype_db):
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account_query_result = skype_db.runQuery(
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"""
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SELECT entry_id,
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CASE
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WHEN first_name is NULL AND last_name is NULL THEN entry_id
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WHEN first_name is NULL THEN last_name
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WHEN last_name is NULL THEN first_name
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ELSE first_name || " " || last_name
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END as name
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FROM user
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"""
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)
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if account_query_result is not None and account_query_result.next():
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return Account.Address(account_query_result.getString("entry_id"),
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account_query_result.getString("name"))
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return None
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def analyze(self, dataSource, fileManager, context):
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"""
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Extract, Transform and Load all messages, contacts and
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calllogs from the Skype databases.
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"""
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try:
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#Skype databases are of the form: live:XYZ.db, where
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#XYZ is the skype id of the user.
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skype_dbs = AppSQLiteDB.findAppDatabases(dataSource,
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"live", False, "") #self._SKYPE_PACKAGE_NAME)
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#Extract TSK_CONTACT and TSK_CALLLOG information
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for skype_db in skype_dbs:
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account_instance = self.get_account_instance(skype_db)
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if account_instance is None:
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helper = AppDBParserHelper(self._PARSER_NAME,
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skype_db.getDBFile(), Account.Type.SKYPE)
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else:
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helper = AppDBParserHelper(self._PARSER_NAME,
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skype_db.getDBFile(), Account.Type.SKYPE,
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Account.Type.SKYPE, account_instance)
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contacts_parser = SkypeContactsParser(skype_db)
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while contacts_parser.next():
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helper.addContact(
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contacts_parser.get_account_name(),
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contacts_parser.get_contact_name(),
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contacts_parser.get_phone(),
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contacts_parser.get_home_phone(),
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contacts_parser.get_mobile_phone(),
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contacts_parser.get_email()
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)
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contacts_parser.close()
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calllog_parser = SkypeCallLogsParser(skype_db)
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while calllog_parser.next():
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helper.addCalllog(
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calllog_parser.get_call_direction(),
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calllog_parser.get_phone_number_from(),
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calllog_parser.get_phone_number_to(),
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calllog_parser.get_call_start_date_time(),
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calllog_parser.get_call_end_date_time(),
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calllog_parser.get_call_type()
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)
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calllog_parser.close()
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messages_parser = SkypeMessagesParser(skype_db)
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while messages_parser.next():
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helper.addMessage(
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messages_parser.get_message_type(),
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messages_parser.get_message_direction(),
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messages_parser.get_phone_number_from(),
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messages_parser.get_phone_number_to(),
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messages_parser.get_message_date_time(),
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messages_parser.get_message_read_status(),
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messages_parser.get_message_subject(),
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messages_parser.get_message_text(),
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messages_parser.get_thread_id()
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)
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messages_parser.close()
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skype_db.close()
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except (SQLException, TskCoreException) as ex:
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#Error parsing Viber db
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self._logger.log(Level.WARNING, "Error parsing Skype Databases", ex)
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self._logger.log(Level.WARNING, traceback.format_exec())
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class SkypeCallLogsParser(TskCallLogsParser):
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"""
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Extracts TSK_CALLLOG information from the Skype database.
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TSK_CALLLOG fields that are not in the Skype database are given
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a default value inherited from the super class.
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"""
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def __init__(self, calllog_db):
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super(SkypeCallLogsParser, self).__init__(calllog_db.runQuery(
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"""
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SELECT full_contacts_list.id,
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full_contacts_list.names,
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time,
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duration,
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is_sender_me
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FROM (SELECT conversation_id AS id ,
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Group_concat(person_id) AS members,
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Group_concat(CASE
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WHEN Ifnull(first_name, "") == ""
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AND Ifnull(last_name,"") == "" THEN entry_id
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WHEN Ifnull(first_name, "") == "" THEN last_name
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WHEN Ifnull(last_name, "") == "" THEN first_name
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ELSE first_name
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|| " "
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|| last_name
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END) AS names
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FROM particiapnt AS PART
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JOIN person AS P
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ON PART.person_id = P.entry_id
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GROUP BY conversation_id
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UNION
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SELECT entry_id AS id,
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NULL,
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CASE
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WHEN Ifnull(first_name, "") == ""
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AND Ifnull(last_name, "") == "" THEN entry_id
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WHEN Ifnull(first_name, "") == "" THEN last_name
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WHEN Ifnull(last_name, "") == "" THEN first_name
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ELSE first_name
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|| " "
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|| last_name
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END AS name
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FROM person) AS full_contacts_list
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JOIN chatitem AS C
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ON C.conversation_link = full_contacts_list.id
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WHERE message_type == 3
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"""
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)
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)
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self._INCOMING_CALL_TYPE = 0
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self._OUTGOING_CALL_TYPE = 1
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def get_phone_number_from(self):
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if self.get_call_direction() == self.INCOMING_CALL:
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return Account.Address(self.result_set.getString("id"),
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self.result_set.getString("names"))
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return super(SkypeCallLogsParser, self).get_phone_number_from()
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def get_phone_number_to(self):
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if self.get_call_direction() == self.OUTGOING_CALL:
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return Account.Address(self.result_set.getString("id"),
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self.result_set.getString("names"))
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return super(SkypeCallLogsParser, self).get_phone_number_to()
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def get_call_direction(self):
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direction = self.result_set.getInt("is_sender_me")
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if direction == self._INCOMING_CALL_TYPE:
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return self.INCOMING_CALL
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if direction == self._OUTGOING_CALL_TYPE:
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return self.OUTGOING_CALL
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return super(SkypeCallLogsParser, self).get_call_direction()
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def get_call_start_date_time(self):
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return self.result_set.getLong("time") / 1000
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def get_call_end_date_time(self):
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start = self.get_call_start_date_time()
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duration = self.result_set.getInt("duration") / 1000
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return start + duration
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class SkypeContactsParser(TskContactsParser):
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"""
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Extracts TSK_CONTACT information from the Skype database.
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TSK_CONTACT fields that are not in the Skype database are given
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a default value inherited from the super class.
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"""
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def __init__(self, contact_db):
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super(SkypeContactsParser, self).__init__(contact_db.runQuery(
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"""
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SELECT entry_id,
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CASE
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WHEN Ifnull(first_name, "") == ""
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AND Ifnull(last_name, "") == "" THEN entry_id
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WHEN Ifnull(first_name, "") == "" THEN last_name
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WHEN Ifnull(last_name, "") == "" THEN first_name
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ELSE first_name
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|| " "
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|| last_name
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end AS name
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FROM person
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"""
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)
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)
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def get_account_name(self):
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return self.result_set.getString("entry_id")
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def get_contact_name(self):
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return self.result_set.getString("name")
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class SkypeMessagesParser(TskMessagesParser):
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"""
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Extract TSK_MESSAGE information from the Skype database.
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TSK_CONTACT fields that are not in the Skype database are given
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a default value inherited from the super class.
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"""
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def __init__(self, message_db):
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super(SkypeMessagesParser, self).__init__(message_db.runQuery(
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"""
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SELECT full_contacts_list.id,
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full_contacts_list.members,
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full_contacts_list.names,
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time,
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content,
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file_name,
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device_gallery_path,
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is_sender_me
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FROM (SELECT conversation_id AS id ,
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Group_concat(person_id) AS members,
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Group_concat(CASE
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WHEN Ifnull(first_name, "") == ""
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AND Ifnull(last_name,"") == "" THEN entry_id
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WHEN Ifnull(first_name, "") == "" THEN last_name
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WHEN Ifnull(last_name, "") == "" THEN first_name
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ELSE first_name
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|| " "
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|| last_name
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END) AS names
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FROM particiapnt AS PART
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JOIN person AS P
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ON PART.person_id = P.entry_id
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GROUP BY conversation_id
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UNION
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SELECT entry_id AS id,
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NULL,
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CASE
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WHEN Ifnull(first_name, "") == ""
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AND Ifnull(last_name, "") == "" THEN entry_id
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WHEN Ifnull(first_name, "") == "" THEN last_name
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WHEN Ifnull(last_name, "") == "" THEN first_name
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ELSE first_name
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|| " "
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|| last_name
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END AS name
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FROM person) AS full_contacts_list
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JOIN chatitem AS C
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ON C.conversation_link = full_contacts_list.id
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WHERE message_type != 3
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"""
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)
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)
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self._SKYPE_MESSAGE_TYPE = "Skype Message"
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self._OUTGOING_MESSAGE_TYPE = 1
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self._INCOMING_MESSAGE_TYPE = 0
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def get_message_type(self):
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return self._SKYPE_MESSAGE_TYPE
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def get_phone_number_from(self):
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if self.get_message_direction() == self.INCOMING:
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return Account.Address(self.result_set.getString("id"),
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self.result_set.getString("names"))
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return super(SkypeMessagesParser, self).get_phone_number_from()
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def get_message_direction(self):
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direction = self.result_set.getInt("is_sender_me")
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if direction == self._OUTGOING_MESSAGE_TYPE:
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return self.OUTGOING
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if direction == self._INCOMING_MESSAGE_TYPE:
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return self.INCOMING
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return super(SkypeMessagesParser, self).get_message_direction()
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def get_phone_number_to(self):
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if self.get_message_direction() == self.OUTGOING:
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return Account.Address(self.result_set.getString("id"),
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self.result_set.getString("names"))
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return super(SkypeMessagesParser, self).get_phone_number_to()
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def get_message_date_time(self):
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date = self.result_set.getLong("time")
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return date / 1000
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def get_message_text(self):
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content = self.result_set.getString("content")
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if content is not None:
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file_name = self.result_set.getString("file_name")
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file_path = self.result_set.getString("device_gallery_path")
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#if a file name and file path are associated with a message, append it
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if file_name is not None and file_path is not None:
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attachment = "File Name: "+file_name +"\n"+ "File Path: "+file_path
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return general.appendAttachmentList(content, [attachment])
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return content
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return super(SkypeMessagesParser, self).get_message_text()
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def get_thread_id(self):
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members = self.result_set.getString("members")
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if members is not None:
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return self.result_set.getString("id")
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return super(SkypeMessagesParser, self).get_thread_id()
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