# -*- coding: utf-8 -*-
"""SQLite parser plugin for MacOS TCC database files."""
from dfdatetime import posix_time as dfdatetime_posix_time
from plaso.containers import events
from plaso.parsers import sqlite
from plaso.parsers.sqlite_plugins import interface
[docs]
class MacOSTCCEntry(events.EventData):
"""MacOS TCC event data.
Attributes:
allowed (bool): whether access to the service was allowed.
client (str): name of the client requesting access to the service.
modification_time (dfdatetime.DateTimeValues): date and time of the entry
last modification.
prompt_count (int): number of times an application prompted the user for
access to a service.
query (str): SQL query that was used to obtain the event data.
service (str): name of the service.
"""
DATA_TYPE = 'macos:tcc_entry'
[docs]
def __init__(self):
"""Initializes event data."""
super(MacOSTCCEntry, self).__init__(data_type=self.DATA_TYPE)
self.allowed = None
self.client = None
self.modification_time = None
self.prompt_count = None
self.query = None
self.service = None
[docs]
class MacOSTCCPlugin(interface.SQLitePlugin):
"""SQLite parser plugin for MacOS TCC database files.
The MacOS Transparency, Consent, Control (TCC) database file is typically
stored in:
/Library/Application Support/com.apple.TCC/TCC.db
/Users/<username>/Library/Application Support/com.apple.TCC/TCC.db
"""
NAME = 'macostcc'
DATA_FORMAT = (
'MacOS Transparency, Consent, Control (TCC) SQLite database (TCC.db) '
'file')
REQUIRED_STRUCTURE = {
'access': frozenset([
'allowed', 'client', 'last_modified', 'prompt_count', 'service']),
'access_overrides': frozenset([]),
'active_policy': frozenset([]),
'admin': frozenset([]),
'expired': frozenset([]),
'policies': frozenset([])}
QUERIES = [(
('SELECT service, client, allowed, prompt_count, last_modified '
'FROM access;'), 'ParseTCCEntry')]
SCHEMAS = [{
'access': (
'CREATE TABLE access ( service TEXT NOT NULL, client TEXT NOT NULL, '
'client_type INTEGER NOT NULL, allowed INTEGER NOT NULL, '
'prompt_count INTEGER NOT NULL, csreq BLOB, policy_id INTEGER, '
'indirect_object_identifier_type INTEGER, '
'indirect_object_identifier TEXT, indirect_object_code_identity '
'BLOB, flags INTEGER, last_modified INTEGER NOT NULL DEFAULT '
'(CAST(strftime(\'%s\',\'now\') AS INTEGER)), PRIMARY KEY (service, '
'client, client_type, indirect_object_identifier), FOREIGN KEY '
'(policy_id) REFERENCES policies(id) ON DELETE CASCADE ON UPDATE '
'CASCADE)'),
'access_overrides': (
'CREATE TABLE access_overrides ( service TEXT NOT NULL PRIMARY KEY)'),
'active_policy': (
'CREATE TABLE active_policy ( client TEXT NOT NULL, client_type '
'INTEGER NOT NULL, policy_id INTEGER NOT NULL, PRIMARY KEY (client, '
'client_type), FOREIGN KEY (policy_id) REFERENCES policies(id) ON '
'DELETE CASCADE ON UPDATE CASCADE)'),
'admin': (
'CREATE TABLE admin (key TEXT PRIMARY KEY NOT NULL, value INTEGER '
'NOT NULL)'),
'expired': (
'CREATE TABLE expired ( service TEXT NOT NULL, client TEXT NOT '
'NULL, client_type INTEGER NOT NULL, csreq BLOB, last_modified '
'INTEGER NOT NULL , expired_at INTEGER NOT NULL DEFAULT '
'(CAST(strftime(\'%s\',\'now\') AS INTEGER)), PRIMARY KEY (service, '
'client, client_type))'),
'policies': (
'CREATE TABLE policies ( id INTEGER NOT NULL PRIMARY KEY, bundle_id '
'TEXT NOT NULL, uuid TEXT NOT NULL, display TEXT NOT NULL, UNIQUE '
'(bundle_id, uuid))')}]
def _GetDateTimeRowValue(self, query_hash, row, value_name):
"""Retrieves a date and time value from the row.
Args:
query_hash (int): hash of the query, that uniquely identifies the query
that produced the row.
row (sqlite3.Row): row.
value_name (str): name of the value.
Returns:
dfdatetime.PosixTime: date and time value or None if not available.
"""
timestamp = self._GetRowValue(query_hash, row, value_name)
if timestamp is None:
return None
return dfdatetime_posix_time.PosixTime(timestamp=timestamp)
[docs]
def ParseTCCEntry(self, parser_mediator, query, row, **unused_kwargs):
"""Parses an application usage row.
Args:
parser_mediator (ParserMediator): mediates interactions between parsers
and other components, such as storage and dfVFS.
query (str): query that created the row.
row (sqlite3.Row): row.
"""
query_hash = hash(query)
event_data = MacOSTCCEntry()
event_data.allowed = self._GetRowValue(query_hash, row, 'allowed')
event_data.client = self._GetRowValue(query_hash, row, 'client')
event_data.modification_time = self._GetDateTimeRowValue(
query_hash, row, 'last_modified')
event_data.prompt_count = self._GetRowValue(query_hash, row, 'prompt_count')
event_data.query = query
event_data.service = self._GetRowValue(query_hash, row, 'service')
parser_mediator.ProduceEventData(event_data)
sqlite.SQLiteParser.RegisterPlugin(MacOSTCCPlugin)