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examples: mutt crypt-hooks generator

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* Added a script which demonstrates how the groups module works.
* Script generates Mutt/Neomutt crypt-hooks for every group entry in
  gpg.conf, including those entries for multiple keys (Mutt handles
  that differently).
This commit is contained in:
Ben McGinnes 2018-05-25 07:12:52 +10:00
parent 48e946a96d
commit 321005c12f
1 changed files with 64 additions and 0 deletions
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lang/python/examples/howto/mutt-groups.py Executable file
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
from __future__ import absolute_import, division, unicode_literals
# Copyright (C) 2018 Ben McGinnes <ben@gnupg.org>
#
# 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 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; either version 2.1 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 and the GNU
# Lesser General Public Licensefor more details.
#
# You should have received a copy of the GNU General Public License and the GNU
# Lesser General Public along with this program; if not, see
# <http://www.gnu.org/licenses/>.
import sys
from groups import group_lists
"""
Uses the groups module to generate Mutt crypt-hooks from gpg.conf.
"""
if len(sys.argv) >= 2:
hook_file = sys.argv[1]
else:
hook_file = input("Enter the filename to save the crypt-hooks in: ")
with open(hook_file, "w") as f:
f.write("""# Change settings based upon message recipient
#
# send-hook [!]<pattern> <command>
#
# <command> is executed when sending mail to an address matching <pattern>
#
# crypt-hook regexp key-id
# The crypt-hook command provides a method by which you can
# specify the ID of the public key to be used when encrypting
# messages to a certain recipient. The meaning of "key ID" is to
# be taken broadly: This can be a different e-mail address, a
# numerical key ID, or even just an arbitrary search string. You
# may use multiple crypt-hooks with the same regexp; multiple
# matching crypt-hooks result in the use of multiple key-ids for a
# recipient.
""")
for n in range(len(group_lists)):
rule = group_lists[n][0].replace(".", "\\\\.")
with open(hook_file, "a") as f:
f.write("\n")
f.write("# {0}\n".format(group_lists[n][0]))
for i in range(len(group_lists[n][1])):
f.write("crypt-hook {0} {1}\n".format(rule, group_lists[n][1][i]))