"""SQLite parser plugin for MacOS application usage 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 MacOSApplicationUsageEventData(events.EventData):
"""MacOS application usage event data.
Attributes:
application (str): name of the application.
application_version (str): version of the application.
bundle_identifier (str): bundle identifier of the application.
count (int): number of occurances of the event.
event (str): event.
last_used_time (dfdatetime.DateTimeValues): last date and time
the application was last used.
query (str): SQL query that was used to obtain the event data.
"""
DATA_TYPE = "macos:application_usage:entry"
[docs]
def __init__(self):
"""Initializes event data."""
super().__init__(data_type=self.DATA_TYPE)
self.application = None
self.application_version = None
self.bundle_identifier = None
self.count = None
self.event = None
self.last_used_time = None
self.query = None
[docs]
class MacOSApplicationUsagePlugin(interface.SQLitePlugin):
"""SQLite parser plugin for MacOS application usage database files.
The MacOS application usage database is typically stored in:
/var/db/application_usage.sqlite
Application usage is a SQLite database that logs down entries triggered by
NSWorkspaceWillLaunchApplicationNotification and
NSWorkspaceDidTerminateApplicationNotification NSWorkspace notifications by
crankd.
More information can be found here:
https://github.com/google/macops/blob/master/crankd/ApplicationUsage.py
"""
NAME = "appusage"
DATA_FORMAT = (
"MacOS application usage SQLite database (application_usage.sqlite) file"
)
REQUIRED_STRUCTURE = {
"application_usage": frozenset(
[
"last_time",
"event",
"bundle_id",
"app_version",
"app_path",
"number_times",
]
)
}
QUERIES = [
(
(
"SELECT last_time, event, bundle_id, app_version, app_path, "
"number_times FROM application_usage"
),
"_ParseApplicationUsageRow",
)
]
SCHEMAS = [
{
"application_usage": (
"CREATE TABLE application_usage (event TEXT, bundle_id TEXT, "
"app_version TEXT, app_path TEXT, last_time INTEGER DEFAULT 0, "
"number_times INTEGER DEFAULT 0, PRIMARY KEY (event, bundle_id))"
)
}
]
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)
def _ParseApplicationUsageRow(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 = MacOSApplicationUsageEventData()
event_data.application = self._GetRowValue(query_hash, row, "app_path")
event_data.application_version = self._GetRowValue(
query_hash, row, "app_version"
)
event_data.bundle_identifier = self._GetRowValue(query_hash, row, "bundle_id")
event_data.count = self._GetRowValue(query_hash, row, "number_times")
event_data.event = self._GetRowValue(query_hash, row, "event")
event_data.last_used_time = self._GetDateTimeRowValue(
query_hash, row, "last_time"
)
event_data.query = query
parser_mediator.ProduceEventData(event_data)
sqlite.SQLiteParser.RegisterPlugin(MacOSApplicationUsagePlugin)