/usr/lib/python2.7/dist-packages/flufl/bounce/_detectors/simplewarning.py is in python-flufl.bounce 2.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# This file is part of flufl.bounce
#
# flufl.bounce 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, version 3 of the License.
#
# flufl.bounce 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 flufl.bounce. If not, see <http://www.gnu.org/licenses/>.
"""Recognizes simple heuristically delimited warnings."""
__metaclass__ = type
__all__ = [
'SimpleWarning',
]
from flufl.bounce._detectors.simplematch import SimpleMatch
from flufl.bounce._detectors.simplematch import _c
from flufl.bounce.interfaces import NoPermanentFailures
# This is a list of tuples of the form
#
# (start cre, end cre, address cre)
#
# where 'cre' means compiled regular expression, start is the line just before
# the bouncing address block, end is the line just after the bouncing address
# block, and address cre is the regexp that will recognize the addresses. It
# must have a group called 'addr' which will contain exactly and only the
# address that bounced.
PATTERNS = [
# pop3.pta.lia.net
(_c('The address to which the message has not yet been delivered is'),
_c('No action is required on your part'),
_c(r'\s*(?P<addr>\S+@\S+)\s*')),
# MessageSwitch
(_c('Your message to:'),
_c('This is just a warning, you do not need to take any action'),
_c(r'\s*(?P<addr>\S+@\S+)\s*')),
# Symantec_AntiVirus_for_SMTP_Gateways
(_c('Your message with Subject:'),
_c('Delivery attempts will continue to be made'),
_c(r'\s*(?P<addr>\S+@\S+)\s*')),
# googlemail.com warning
(_c('Delivery to the following recipient has been delayed'),
_c('Message will be retried'),
_c(r'\s*(?P<addr>\S+@\S+)\s*')),
# Exchange warning message.
(_c('This is an advisory-only email'),
_c('has been postponed'),
_c('"(?P<addr>[^"]+)"')),
# kundenserver.de
(_c('not yet been delivered'),
_c('No action is required on your part'),
_c(r'\s*<?(?P<addr>\S+@[^>\s]+)>?\s*')),
# Next one goes here...
]
class SimpleWarning(SimpleMatch):
"""Recognizes simple heuristically delimited warnings."""
PATTERNS = PATTERNS
def process(self, msg):
"""See `SimpleMatch`."""
# Since these are warnings, they're classified as temporary failures.
# There are no permanent failures.
(temporary,
permanent_really_temporary) = super(SimpleWarning, self).process(msg)
return permanent_really_temporary, NoPermanentFailures
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