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Based on qubes.log module from core-admin
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# | ||
# The Qubes OS Project, https://www.qubes-os.org/ | ||
# | ||
# Copyright (C) 2014-2015 Joanna Rutkowska <[email protected]> | ||
# Copyright (C) 2014-2015 Wojtek Porczyk <[email protected]> | ||
# | ||
# This program is free software; you can redistribute it and/or modify | ||
# it under the terms of the GNU Lesser General Public License as published by | ||
# the Free Software Foundation; either version 2.1 of the License, 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 Lesser General Public License for more details. | ||
# | ||
# You should have received a copy of the GNU Lesser General Public License along | ||
# with this program; if not, write to the Free Software Foundation, Inc., | ||
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | ||
# | ||
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'''Qubes logging routines | ||
See also: :py:attr:`qubes.vm.qubesvm.QubesVM.log` | ||
''' | ||
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import logging | ||
import sys | ||
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import dbus | ||
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FORMAT_CONSOLE = '%(message)s' | ||
FORMAT_LOG = '%(asctime)s %(message)s' | ||
FORMAT_DEBUG = '%(asctime)s ' \ | ||
'[%(processName)s %(module)s.%(funcName)s:%(lineno)d] %(name)s: %(message)s' | ||
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formatter_console = logging.Formatter(FORMAT_CONSOLE) | ||
formatter_log = logging.Formatter(FORMAT_LOG) | ||
formatter_debug = logging.Formatter(FORMAT_DEBUG) | ||
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class DBusHandler(logging.Handler): | ||
'''Handler which displays records as DBus notifications''' | ||
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#: mapping of loglevels to icons | ||
app_icons = { | ||
logging.ERROR: 'dialog-error', | ||
logging.WARNING: 'dialog-warning', | ||
logging.NOTSET: 'dialog-information', | ||
} | ||
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def __init__(self, *args, **kwargs): | ||
super(DBusHandler, self).__init__(*args, **kwargs) | ||
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self._notify_object = dbus.SessionBus().get_object( | ||
'org.freedesktop.Notifications', '/org/freedesktop/Notifications') | ||
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def emit(self, record): | ||
app_icon = self.app_icons[ | ||
max(level for level in self.app_icons if level <= record.levelno)] | ||
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try: | ||
# https://developer.gnome.org/notification-spec/#command-notify | ||
self._notify_object.Notify( | ||
'Qubes', # STRING app_name | ||
0, # UINT32 replaces_id | ||
app_icon, # STRING app_icon | ||
record.msg, # STRING summary | ||
'', # STRING body | ||
(), # ARRAY actions | ||
{}, # DICT hints | ||
0, # INT32 timeout | ||
dbus_interface='org.freedesktop.Notifications') | ||
except dbus.DBusException: | ||
pass | ||
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def enable(): | ||
'''Enable global logging | ||
Use :py:mod:`logging` module from standard library to log messages. | ||
>>> import qubes.log | ||
>>> qubes.log.enable() # doctest: +SKIP | ||
>>> import logging | ||
>>> logging.warning('Foobar') # doctest: +SKIP | ||
''' | ||
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if logging.root.handlers: | ||
return | ||
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handler_console = logging.StreamHandler(sys.stderr) | ||
handler_console.setFormatter(formatter_console) | ||
logging.root.addHandler(handler_console) | ||
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logging.root.setLevel(logging.INFO) | ||
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def enable_debug(): | ||
'''Enable debug logging | ||
Enable more messages and additional info to message format. | ||
''' | ||
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enable() | ||
logging.root.setLevel(logging.DEBUG) | ||
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for handler in logging.root.handlers: | ||
handler.setFormatter(formatter_debug) |