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# Copyright (C) 1998-2005 by the Free Software Foundation, Inc.
#
# 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
# USA.
"""Central logging class for the Mailman system.
This might eventually be replaced by a syslog based logger, hence the name.
"""
import quopri
from Mailman.Logging.StampedLogger import StampedLogger
# Global, shared logger instance. All clients should use this object.
syslog = None
# Don't instantiate except below.
class _Syslog:
def __init__(self):
self._logfiles = {}
def __del__(self):
self.close()
def write(self, kind, msg, *args, **kws):
self.write_ex(kind, msg, args, kws)
# We need this because SMTPDirect tries to pass in a special dict-like
# object, which is not a concrete dictionary. This is not allowed by
# Python's extended call syntax. :(
def write_ex(self, kind, msg, args=None, kws=None):
origmsg = msg
logf = self._logfiles.get(kind)
if not logf:
logf = self._logfiles[kind] = StampedLogger(kind)
try:
if args:
msg %= args
if kws:
msg %= kws
# It's really bad if exceptions in the syslogger cause other crashes
except Exception, e:
msg = 'Bad format "%s": %s: %s' % (origmsg, repr(e), e)
try:
logf.write(msg + '\n')
except UnicodeError:
# Python 2.4 may fail to write 8bit (non-ascii) characters
# Also, if msg is unicode with non-ascii, quopri.encodestring()
# will throw UnicodeEncodeError, so avoid that.
if isinstance(msg, unicode):
msg = msg.encode('iso-8859-1', 'replace')
logf.write(quopri.encodestring(msg) + '\n')
# For the ultimate in convenience
__call__ = write
def close(self):
for kind, logger in self._logfiles.items():
logger.close()
self._logfiles.clear()
syslog = _Syslog()
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