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Diffstat (limited to 'debian/postfix-add-policy')
| -rw-r--r-- | debian/postfix-add-policy | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/debian/postfix-add-policy b/debian/postfix-add-policy new file mode 100644 index 0000000..6f04369 --- /dev/null +++ b/debian/postfix-add-policy @@ -0,0 +1,94 @@ +#!/usr/bin/python3 +''' +postfix-add-filter - A script to append new services to Postfix master.cf to +simplify integration of content filters. + +Copyright (c) 2008 Scott Kitterman <scott@kitterman.com> +Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: +The above copyright notice and this permission notice shall be included in + all copies or substantial portions of the Software. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + THE SOFTWARE. +''' +__author__ = "Scott Kitterman" +__email__ = "scott@kitterman.com" +__version__ = "0.1: August 3, 2008" + +import sys +import shutil +import time + +def makepolicy(name, user, argv): + # Recommendations from the Postfix SMTPD_POLICY_README. + header = """# ========================================================================== +# service type private unpriv chroot wakeup maxproc command + args +# (yes) (yes) (yes) (never) (100) +# ========================================================================== +# Added using postfix-add-policy script: +""" + policy = ("""%s unix - n n - 0 spawn + user=%s argv=%s +""" % (name, user, argv)) + additions = header + policy + return additions + + +USAGE = """To add a new policy service to your master.cf: + % sudo postfix-policy-add {policy service name} {user} {file (full path)} + +Example: + % sudo postfix-policy-add policyd noboby /usr/bin/policyd + +Adds the following to master.cf: +""" + makepolicy('policyd', 'nobody', '/usr/bin/policyd') + """ +To output this usage message: + % postfix-add-policy +""" + + +if __name__ == '__main__': + if len(sys.argv) < 4: + print(USAGE + "\n") + elif len(sys.argv) == 4: + policyname = sys.argv[1] + user = sys.argv[2] + argv = sys.argv[3] + # Read in master.cf and check to make sure specified name isn't + # already used + with open('/etc/postfix/master.cf', mode='r') as masterfile: + master = masterfile.readlines() + bailout = False + for line in master: + if policyname in line: + # Policy name already used, print error and bail + print ('Selected policy name, %s, already in master.cf. \ + Master.cf not updated.' % (policyname)) + bailout = True + break + if not bailout: + # Make backup copy + backupname = '/etc/postfix/master.cf.' + str(int(time.time())) + shutil.copy2('/etc/postfix/master.cf', backupname) + # Make working copy + shutil.copy2('/etc/postfix/master.cf', \ + '/etc/postfix/master.cf.working') + # Add stuff in + stuff = makepolicy(policyname, user, argv) + # Append stuff to the working copy: + with open('/etc/postfix/master.cf.working', mode='a') as newmaster: + newmaster.writelines(stuff) + # Put working copy in place. + shutil.move('/etc/postfix/master.cf.working', \ + '/etc/postfix/master.cf') + else: + print(USAGE + "\n") |