/usr/share/pyshared/postfix.py is in bley 0.1.5-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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from twisted.protocols.basic import LineOnlyReceiver
from twisted.internet.protocol import Factory
class PostfixPolicy(LineOnlyReceiver):
'''Basic implementation of a Postfix policy service.'''
def __init__(self):
self.params = {}
self.delimiter = '\n'
def lineReceived(self, line):
'''Parse stuff from Postfix and call check_policy() afterwards.'''
line = line.strip().lower()
if line == '':
if len(self.params) > 0:
self.check_policy()
self.params = {}
else:
try:
(pkey, pval) = line.split('=', 1)
try:
pval = pval.decode('utf-8', 'ignore').encode('us-ascii', 'ignore')
except:
pass
self.params[pkey] = pval
except:
print 'Could not parse "%s"' % line
def check_policy (self):
'''Check the incoming mail based on our policy and tell Postfix
about our decision.
You probably want to override this one with a function that does
something useful.
'''
self.send_action('DUNNO')
def send_action (self, action='DUNNO'):
'''Send action back to Postfix.
@type action: string
@param action: the action to be sent to Postfix (default: 'DUNNO')
'''
self.sendLine('action=%s\n' % action)
class PostfixPolicyFactory(Factory):
protocol = PostfixPolicy
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