1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
#
# 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 os
import signal
import sys
import logging
from logging.handlers import SysLogHandler, SYSLOG_UDP_PORT
import types
import iutil
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"
ANACONDA_SYSLOG_FACILITY = SysLogHandler.LOG_LOCAL1
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:
def __init__ (self):
self.tty_loglevel = DEFAULT_TTY_LEVEL
self.remote_syslog = None
# Create the base of the logger hierarcy.
logger = logging.getLogger("anaconda")
logger.setLevel(logging.DEBUG)
self.addFileHandler(MAIN_LOG_FILE, logger,
minLevel=logging.DEBUG)
self.forwardToSyslog(logger)
# Log to tty3.
if not iutil.isS390() 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.forwardToSyslog(program_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)
# Add another logger to the hierarchy. For best results, make sure
# name falls under anaconda in the tree.
def addLogger (self, name, minLevel=DEFAULT_TTY_LEVEL):
newLogger = logging.getLogger(name)
newLogger.setLevel(minLevel)
# Add a handler for remote syslogs.
def addSysLogHandler (self, logger, host, port=SYSLOG_UDP_PORT,
minLevel=DEFAULT_TTY_LEVEL):
fmt = logging.Formatter("%(levelname)-8s %(message)s")
syslogHandler = SysLogHandler((host, port))
syslogHandler.setLevel(minLevel)
syslogHandler.setFormatter(fmt)
logger.addHandler(syslogHandler)
def forwardToSyslog(self, logger):
"""Forward everything that goes in the logger to the syslog daemon.
"""
syslogHandler = AnacondaSyslogHandler(
'/dev/log',
ANACONDA_SYSLOG_FACILITY,
logger.name)
syslogHandler.setLevel(logging.DEBUG)
logger.addHandler(syslogHandler)
def updateRemote(self, remote_syslog):
"""Updates the location of remote rsyslogd to forward to.
Requires updating rsyslogd config and sending SIGHUP to the daemon.
"""
PIDFILE = "/var/run/syslogd.pid"
CFGFILE = "/etc/rsyslog.conf"
TEMPLATE = "*.* @@%s\n"
self.remote_syslog = remote_syslog
with open(CFGFILE, 'a') as cfgfile:
forward_line = TEMPLATE % remote_syslog
cfgfile.write(forward_line)
with open(PIDFILE, 'r') as pidfile:
pid = int(pidfile.read())
os.kill(pid, signal.SIGHUP)
logger = AnacondaLog()
|
