125 lines
3.9 KiB
Python
Executable file
125 lines
3.9 KiB
Python
Executable file
#!/usr/bin/env python2.4
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#
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# This file is part of lispet - an encryption filter for the
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# ezmlm-idx mailinglist manager.
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#
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# Copyright 02007 Sense.Lab e.V. <info@senselab.org>
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#
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# This script decrypts an incoming mail and encrypts it for each recipient
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# separately. Afterwards it calls qmail-queue for each recipient.
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# It is meant as a wrapper around qmail-queue. See 'man qmail-queue' for
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# details of the qmail-queue interface.
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#
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# Syntax:
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# lispet-encrypt [MAILINGLIST_DIRECTORY]
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#
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# If no MAILINGLIST_DIRECTORY is given, then it will only run some self-tests.
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#
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# Environment settings:
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# - QMAILQUEUE should contain the path of the qmail-queue program (or a
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# substitute - e.g. for spam filtering) - otherwise the default location
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# /var/qmail/bin/qmail-queue is used
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#
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#
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# lispet is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# lispet is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with the CryptoBox; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# TODO:
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# implement 'sign_messages'
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# implement 'hide_subject'
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import sys
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import os
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import re
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#the following modules are imported later
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# import configobj
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# try to load the module configobj
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try:
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import configobj
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except ImportError:
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sys.stderr.write("Failed to import the required module 'configobj'. "
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. "Please check if it is installed!\n")
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sys.exit(1)
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############### some default settings ##################
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## default settings - the setting keys must always be lower case!
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DEFAULT_SETTINGS = {
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"plain_without_key": False,
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"sign_messages": False,
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"gnupg_dir": ".gnupg"
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}
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def read_config(self):
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"""Read the config file.
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If a value is not defined in the config file, then the default value
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is used.
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Any line that does not really look like a config setting is ignored.
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Any unknown configuration settings are ignored, too.
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"""
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result = DEFAULT_SETTINGS
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## retrieve the absolute path of the configuration file
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## by default it is relative to the mailinglist's directory
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if os.path.isabs(CONF_FILE):
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conf_file = CONF_FILE
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else:
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conf_file = os.path.join(self.list_dir, CONF_FILE)
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if not os.access(conf_file, os.R_OK):
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internal_error("Could not read gpgpy-ezmlm config file: %s" % conf_file)
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## read all lines of the configuration file
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all_lines = [ e.strip() for e in file(conf_file).readlines() ]
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for line in all_lines:
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## ignore empty lines, comments and lines without "="
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if (not line) or e.startswith("#") or (e.find("=") == -1):
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continue
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key, value = line.split("=", 1)
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## turn everything to lower case and remove surrounding whitespace
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key, value = (key.strip().lower(), value.strip())
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if (len(value) > 1) and \
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((value.startswith('"') and value.endswith('"')) \
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or (value.startswith("'") and value.endswith("'"))):
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value = value[1:-1]
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## ignore empty values or keys
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if not key or not value:
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continue
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## check boolean values
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if key in ['plain_without_key', 'sign_messages']:
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if value.lower() == 'no':
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result[key] = False
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elif value.lower() == 'yes':
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result[key] = True
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else:
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continue
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## process the key directory
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elif key == 'gnupg_dir':
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result[key] = value
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## unknown setting - ignore
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else:
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continue
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if result["gnupg_dir"].startswith('~'):
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result["gnupg_dir"] = os.path.expanduser(result["gnupg_dir"])
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elif not os.path.isabs(result["gnupg_dir"]):
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result["gnupg_dir"] = os.path.abspath(os.path.join(
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self.list_dir, result["gnupg_dir"]))
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return result
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