# =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
# Mobius Forensic Toolkit
# Copyright (C) 2008,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018,2019,2020 Eduardo Aguiar
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2, or (at your option) any later
# version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
import mobius
import pymobius.operating_system
import traceback

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# @brief Generic dataholder class
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class dataholder (object):
  pass

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# @brief Retrieves keywords from CUSTOM.DIC files
# @author Eduardo Aguiar
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class Ant (object):

  # =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  # @brief Initialize object
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  def __init__ (self, item):
    self.name = 'Turing CUSTOM.DIC'
    self.version = '1.0'
    self.__item = item

  # =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  # @brief Run ant
  # =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  def run (self):
    self.__count = 0
    self.__keywords = set ()

    try:
      self.__retrieve_custom_dic ()
    except Exception, e:
      mobius.core.log ('WRN ant.turing: %s' % str (e))

  # =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  # @brief Event <i>on_export_data</i>: Export data to mediator ant
  # @param ant Mediator ant object
  # =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  def on_export_data (self, ant):
    self.__count = len (self.__keywords)

    for keyword in list (self.__keywords):
      ant.test_password (keyword)

  # =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  # @brief Event <i>on_stop</i>: Terminate this ant
  # @param ant Mediator ant object
  # =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  def on_stop (self, ant):
    mobius.core.log ('INF ant.turing: %d CUSTOM.DIC keyword(s) tested' % self.__count)

  # =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  # @brief Event <i>on_test_password</i>: Process password object
  # @param ant Mediator ant object
  # @param password Password value
  # =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  def on_test_password (self, ant, password):
    self.__keywords.discard (password)

  # =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  # @brief Retrieve keywords from CUSTOM.DIC files
  # @see https://answers.microsoft.com/en-us/office/forum/office_2010-word/uproof-and-proof-folders-custom-dictionary/453dab50-1a4d-4415-a076-5000ced87475
  # =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  def __retrieve_custom_dic (self):
    for opsys in pymobius.operating_system.scan (self.__item):
      for user_profile in opsys.get_profiles ():
        try:
          f = user_profile.get_entry_by_path ('%appdata%/Microsoft/UProof/CUSTOM.DIC')
          self.__retrieve_custom_dic_from_file (f, 'utf-16le')
          
          f = user_profile.get_entry_by_path ('%appdata%/Microsoft/Proof/CUSTOM.DIC')
          self.__retrieve_custom_dic_from_file (f, 'ascii')
        except Exception, e:
          mobius.core.log ('WRN %s' % str (e))
          traceback.print_exc ()

  # =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  # @brief Retrieve keywords from CUSTOM.DIC file
  # =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  def __retrieve_custom_dic_from_file (self, f, encoding):
    if f:
      reader = f.new_reader ()
      if reader:
        data = unicode (reader.read (), encoding)

        for keyword in data.split ('\r\n'):
          self.__keywords.add (keyword.encode ('utf-8'))
