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Ignored next-hops

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This commit is contained in:
Dominik Chilla 2020-02-21 00:03:01 +01:00
parent 165b279dbf
commit 66ad47e521
1 changed files with 26 additions and 6 deletions
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32
app/sos-milter.py
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@ -20,6 +20,7 @@ g_re_spf_regex = re.compile(r'.*', re.IGNORECASE)
g_re_expected_txt_data = ''
g_loglevel = logging.INFO
g_milter_mode = 'test'
g_ignored_next_hops = {}
class SOSMilter(Milter.Base):
# Each new connection is handled in an own thread
@ -120,13 +121,17 @@ class SOSMilter(Milter.Base):
# and therefore not available until DATA command
self.queue_id = self.getsymval('i')
if self.null_sender:
logging.info(self.mconn_id + '/' + self.queue_id + "/DATA Skipping bounce/DSN message")
logging.info(self.mconn_id + '/' + self.queue_id +
"/DATA Skipping bounce/DSN message"
)
return Milter.CONTINUE
if self.spf_record is not None:
logging.info(self.mconn_id + '/' + self.queue_id + "/DATA " +
"SPFv1: " + self.spf_record
)
logging.info(self.mconn_id + '/' + self.queue_id + "/DATA next-hop=" + self.next_hop)
logging.debug(self.mconn_id + '/' + self.queue_id + "/DATA " +
"next-hop=" + self.next_hop
)
if re.match(r'^".+-all"$', self.spf_record, re.IGNORECASE) is not None:
# SPF record is in restrictive mode
if g_re_spf_regex.match(self.spf_record) is not None:
@ -135,15 +140,20 @@ class SOSMilter(Milter.Base):
" permits us to relay this message"
)
else:
ex = "Restrictive SPF-record (-all) of 5321.from-domain=" + self.env_from_domain + " does not permit us to relay this message!"
# Expected 'include' not found in SPF-record
logging.debug(self.mconn_id + '/' + self.queue_id + "/DATA " + ex)
if self.next_hop in g_ignored_next_hops:
logging.info(self.mconn_id + '/' + self.queue_id + "/DATA " +
"Passing message due to ignored next-hop=" + self.next_hop
)
return Milter.CONTINUE
ex = "Restrictive SPF-record (-all) of 5321.from-domain=" + self.env_from_domain + " does not permit us to relay this message!"
if g_milter_mode == 'test':
logging.info(self.mconn_id + '/' + self.queue_id + "/DATA " + ex)
logging.debug(self.mconn_id + '/' + self.queue_id + "/DATA " +
'test-mode: X-SOS-Milter header will be added'
'test-mode: X-SOS-Milter header will be added. '
)
self.add_header = True
else:
else:
logging.error(self.mconn_id + '/' + self.queue_id + "/DATA " + ex)
self.setreply('550','5.7.1',
self.mconn_id + ' ' + ex + ' ' + g_milter_reject_message
@ -201,6 +211,16 @@ if __name__ == "__main__":
except:
logging.error("ENV[SPF_REGEX] exception: " + traceback.format_exc())
sys.exit(1)
if 'IGNORED_NEXT_HOPS' in os.environ:
try:
tmp_hops = os.environ['IGNORED_NEXT_HOPS'].split(',')
for next_hop in tmp_hops:
g_ignored_next_hops[next_hop] = 'ignore'
logging.error("next-hops: " + str(g_ignored_next_hops))
except:
logging.error("ENV[IGNORED_NEXT_HOPS] exception: " + traceback.format_exc())
sys.exit(1)
try:
timeout = 600
# Register to have the Milter factory create instances of your class: