Source code for plaso.formatters.winevtx
# -*- coding: utf-8 -*-
"""The Windows XML EventLog (EVTX) file event formatter."""
from __future__ import unicode_literals
from plaso.formatters import interface
from plaso.formatters import manager
from plaso.lib import errors
[docs]class WinEVTXFormatter(interface.ConditionalEventFormatter):
"""Formatter for a Windows XML EventLog (EVTX) record event."""
DATA_TYPE = 'windows:evtx:record'
FORMAT_STRING_PIECES = [
'[{event_identifier} /',
'0x{event_identifier:04x}]',
'Source Name: {source_name}',
'Message string: {message_string}',
'Strings: {strings}',
'Computer Name: {computer_name}',
'Record Number: {record_number}',
'Event Level: {event_level}']
FORMAT_STRING_SHORT_PIECES = [
'[{event_identifier} /',
'0x{event_identifier:04x}]',
'Strings: {strings}']
SOURCE_LONG = 'WinEVTX'
SOURCE_SHORT = 'EVT'
[docs] def GetMessages(self, formatter_mediator, event):
"""Determines the formatted message strings for an event object.
Args:
formatter_mediator (FormatterMediator): mediates the interactions between
formatters and other components, such as storage and Windows EventLog
resources.
event (EventObject): event.
Returns:
tuple(str, str): formatted message string and short message string.
Raises:
WrongFormatter: if the event object cannot be formatted by the formatter.
"""
if self.DATA_TYPE != event.data_type:
raise errors.WrongFormatter('Unsupported data type: {0:s}.'.format(
event.data_type))
event_values = event.CopyToDict()
source_name = event_values.get('source_name', None)
message_identifier = event_values.get('message_identifier', None)
strings = event_values.get('strings', [])
if source_name and message_identifier:
message_string = formatter_mediator.GetWindowsEventMessage(
source_name, message_identifier)
if message_string:
try:
event_values['message_string'] = message_string.format(*strings)
except IndexError:
pass
message_strings = []
for string in strings:
if string:
message_strings.append('\'{0:s}\''.format(string))
message_string = ', '.join(message_strings)
event_values['strings'] = '[{0:s}]'.format(message_string)
return self._ConditionalFormatMessages(event_values)
manager.FormattersManager.RegisterFormatter(WinEVTXFormatter)