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#
# anaconda_log.py: Support for logging to multiple destinations with log
# levels.
#
# Copyright (C) 2000, 2001, 2002, 2005 Red Hat, Inc. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# Author(s): Chris Lumens <clumens@redhat.com>
# Matt Wilson <msw@redhat.com>
# Michael Fulbright <msf@redhat.com>
#
import logging
from logging.handlers import SysLogHandler, SYSLOG_UDP_PORT
import os
import signal
import sys
import types
import warnings
from flags import flags
DEFAULT_TTY_LEVEL = logging.INFO
ENTRY_FORMAT = "%(asctime)s,%(msecs)03d %(levelname)s %(name)s: %(message)s"
TTY_FORMAT = "%(levelname)s %(name)s: %(message)s"
STDOUT_FORMAT = "%(asctime)s %(message)s"
DATE_FORMAT = "%H:%M:%S"
MAIN_LOG_FILE = "/tmp/anaconda.log"
MAIN_LOG_TTY = "/dev/tty3"
PROGRAM_LOG_FILE = "/tmp/program.log"
PROGRAM_LOG_TTY = "/dev/tty5"
STORAGE_LOG_FILE = "/tmp/storage.log"
PACKAGING_LOG_FILE = "/tmp/packaging.log"
ANACONDA_SYSLOG_FACILITY = SysLogHandler.LOG_LOCAL1
from threading import Lock
program_log_lock = Lock()
logLevelMap = {"debug": logging.DEBUG, "info": logging.INFO,
"warning": logging.WARNING, "error": logging.ERROR,
"critical": logging.CRITICAL}
# sets autoSetLevel for the given handler
def autoSetLevel(handler, value):
handler.autoSetLevel = value
# all handlers of given logger with autoSetLevel == True are set to level
def setHandlersLevel(logger, level):
map(lambda hdlr: hdlr.setLevel(level),
filter (lambda hdlr: hasattr(hdlr, "autoSetLevel") and hdlr.autoSetLevel, logger.handlers))
class AnacondaSyslogHandler(SysLogHandler):
def __init__(self,
address=('localhost', SYSLOG_UDP_PORT),
facility=SysLogHandler.LOG_USER,
tag=''):
self.tag = tag
SysLogHandler.__init__(self, address, facility)
def emit(self, record):
original_msg = record.msg
record.msg = '%s: %s' %(self.tag, original_msg)
SysLogHandler.emit(self, record)
record.msg = original_msg
class AnacondaLog:
SYSLOG_CFGFILE = "/etc/rsyslog.conf"
VIRTIO_PORT = "/dev/virtio-ports/org.fedoraproject.anaconda.log.0"
def __init__ (self):
self.tty_loglevel = DEFAULT_TTY_LEVEL
self.remote_syslog = None
# Rename the loglevels so they are the same as in syslog.
logging.addLevelName(logging.WARNING, "WARN")
logging.addLevelName(logging.ERROR, "ERR")
logging.addLevelName(logging.CRITICAL, "CRIT")
# Create the base of the logger hierarchy.
self.anaconda_logger = logging.getLogger("anaconda")
self.addFileHandler(MAIN_LOG_FILE, self.anaconda_logger,
minLevel=logging.DEBUG)
warnings.showwarning = self.showwarning
# Create the storage logger.
storage_logger = logging.getLogger("blivet")
self.addFileHandler(STORAGE_LOG_FILE, storage_logger,
minLevel=logging.DEBUG)
# Set the common parameters for anaconda and storage loggers.
for logger in [self.anaconda_logger, storage_logger]:
logger.setLevel(logging.DEBUG)
self.forwardToSyslog(logger)
# Logging of basic stuff and storage to tty3.
# XXX Use os.uname here since it's too early to be importing the
# storage module.
if not os.uname()[4].startswith('s390') and os.access(MAIN_LOG_TTY, os.W_OK):
self.addFileHandler(MAIN_LOG_TTY, logger,
fmtStr=TTY_FORMAT,
autoLevel=True)
# External program output log
program_logger = logging.getLogger("program")
program_logger.setLevel(logging.DEBUG)
self.addFileHandler(PROGRAM_LOG_FILE, program_logger,
minLevel=logging.DEBUG)
self.addFileHandler(PROGRAM_LOG_TTY, program_logger,
fmtStr=TTY_FORMAT,
autoLevel=True)
self.forwardToSyslog(program_logger)
# Create the packaging logger.
packaging_logger = logging.getLogger("packaging")
packaging_logger.setLevel(logging.DEBUG)
self.addFileHandler(PACKAGING_LOG_FILE, packaging_logger,
minLevel=logging.DEBUG)
self.forwardToSyslog(packaging_logger)
# Create the yum logger and link it to packaging
yum_logger = logging.getLogger("yum")
yum_logger.setLevel(logging.DEBUG)
self.addFileHandler(PACKAGING_LOG_FILE, yum_logger,
minLevel=logging.DEBUG)
self.forwardToSyslog(yum_logger)
# Create a second logger for just the stuff we want to dup on
# stdout. Anything written here will also get passed up to the
# parent loggers for processing and possibly be written to the
# log.
stdoutLogger = logging.getLogger("anaconda.stdout")
stdoutLogger.setLevel(logging.INFO)
# Add a handler for the duped stuff. No fancy formatting, thanks.
self.addFileHandler(sys.stdout, stdoutLogger,
fmtStr=STDOUT_FORMAT, minLevel=logging.INFO)
# Stderr logger
stderrLogger = logging.getLogger("anaconda.stderr")
stderrLogger.setLevel(logging.INFO)
self.addFileHandler(sys.stderr, stderrLogger,
fmtStr=STDOUT_FORMAT, minLevel=logging.INFO)
# Add a simple handler - file or stream, depending on what we're given.
def addFileHandler (self, file, addToLogger, minLevel=DEFAULT_TTY_LEVEL,
fmtStr=ENTRY_FORMAT,
autoLevel=False):
if isinstance(file, types.StringTypes):
logfileHandler = logging.FileHandler(file)
else:
logfileHandler = logging.StreamHandler(file)
logfileHandler.setLevel(minLevel)
logfileHandler.setFormatter(logging.Formatter(fmtStr, DATE_FORMAT))
autoSetLevel(logfileHandler, autoLevel)
addToLogger.addHandler(logfileHandler)
def forwardToSyslog(self, logger):
"""Forward everything that goes in the logger to the syslog daemon.
"""
if flags.imageInstall:
# don't clutter up the system logs when doing an image install
return
syslogHandler = AnacondaSyslogHandler(
'/dev/log',
ANACONDA_SYSLOG_FACILITY,
logger.name)
syslogHandler.setLevel(logging.DEBUG)
logger.addHandler(syslogHandler)
def showwarning(self, message, category, filename, lineno,
file=sys.stderr, line=None):
""" Make sure messages sent through python's warnings module get logged.
The warnings mechanism is used by some libraries we use,
notably pykickstart.
"""
self.anaconda_logger.warning("%s" % warnings.formatwarning(
message, category, filename, lineno, line))
def restartSyslog(self):
os.system("systemctl restart rsyslog.service")
def updateRemote(self, remote_syslog):
"""Updates the location of remote rsyslogd to forward to.
Requires updating rsyslogd config and restarting rsyslog
"""
TEMPLATE = "*.* @@%s\n"
self.remote_syslog = remote_syslog
with open(self.SYSLOG_CFGFILE, 'a') as cfgfile:
forward_line = TEMPLATE % remote_syslog
cfgfile.write(forward_line)
self.restartSyslog()
def setupVirtio(self):
"""Setup virtio rsyslog logging.
"""
TEMPLATE = "*.* %s;anaconda_syslog\n"
if not os.path.exists(self.VIRTIO_PORT) \
or not os.access(self.VIRTIO_PORT, os.W_OK):
return
with open(self.SYSLOG_CFGFILE, 'a') as cfgfile:
cfgfile.write(TEMPLATE % (self.VIRTIO_PORT,))
self.restartSyslog()
logger = None
def init():
global logger
logger = AnacondaLog()
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