111 lines
3.4 KiB
Python
111 lines
3.4 KiB
Python
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#
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# The Qubes OS Project, https://www.qubes-os.org/
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#
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# Copyright (C) 2014-2015 Joanna Rutkowska <joanna@invisiblethingslab.com>
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# Copyright (C) 2014-2015 Wojtek Porczyk <woju@invisiblethingslab.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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'''Qubes logging routines
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See also: :py:attr:`qubes.vm.qubesvm.QubesVM.log`
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'''
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import logging
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import sys
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import dbus
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FORMAT_CONSOLE = '%(message)s'
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FORMAT_LOG = '%(asctime)s %(message)s'
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FORMAT_DEBUG = '%(asctime)s ' \
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'[%(processName)s %(module)s.%(funcName)s:%(lineno)d] %(name)s: %(message)s'
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formatter_console = logging.Formatter(FORMAT_CONSOLE)
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formatter_log = logging.Formatter(FORMAT_LOG)
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formatter_debug = logging.Formatter(FORMAT_DEBUG)
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class DBusHandler(logging.Handler):
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'''Handler which displays records as DBus notifications'''
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#: mapping of loglevels to icons
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app_icons = {
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logging.ERROR: 'dialog-error',
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logging.WARNING: 'dialog-warning',
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logging.NOTSET: 'dialog-information',
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}
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def __init__(self, *args, **kwargs):
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super(DBusHandler, self).__init__(*args, **kwargs)
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self._notify_object = dbus.SessionBus().get_object(
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'org.freedesktop.Notifications', '/org/freedesktop/Notifications')
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def emit(self, record):
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app_icon = self.app_icons[
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max(level for level in self.app_icons if level <= record.levelno)]
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try:
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# https://developer.gnome.org/notification-spec/#command-notify
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self._notify_object.Notify(
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'Qubes', # STRING app_name
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0, # UINT32 replaces_id
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app_icon, # STRING app_icon
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record.msg, # STRING summary
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'', # STRING body
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(), # ARRAY actions
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{}, # DICT hints
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0, # INT32 timeout
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dbus_interface='org.freedesktop.Notifications')
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except dbus.DBusException:
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pass
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def enable():
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'''Enable global logging
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Use :py:mod:`logging` module from standard library to log messages.
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>>> import qubes.log
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>>> qubes.log.enable() # doctest: +SKIP
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>>> import logging
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>>> logging.warning('Foobar') # doctest: +SKIP
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'''
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if logging.root.handlers:
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return
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handler_console = logging.StreamHandler(sys.stderr)
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handler_console.setFormatter(formatter_console)
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logging.root.addHandler(handler_console)
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logging.root.setLevel(logging.INFO)
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def enable_debug():
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'''Enable debug logging
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Enable more messages and additional info to message format.
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'''
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enable()
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logging.root.setLevel(logging.DEBUG)
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for handler in logging.root.handlers:
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handler.setFormatter(formatter_debug)
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