update_config.py
author Pascal Volk <neverseen@users.sourceforge.net>
Mon, 18 Jan 2010 18:34:48 +0000
branchv0.6.x
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man: reworded some parts.
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#!/usr/bin/env python
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# -*- coding: UTF-8 -*-
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# Copyright (c) 2008 - 2010, Pascal Volk
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# See COPYING for distribution information.
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import os
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os.sys.path.remove(os.sys.path[0])
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from time import time
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from ConfigParser import ConfigParser
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from shutil import copy2
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from VirtualMailManager.constants.VERSION import VERSION
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def get_config_file():
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    f = None
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    for d in ('/root', '/usr/local/etc', '/etc'):
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        tmp = os.path.join(d, 'vmm.cfg')
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        if os.path.isfile(tmp):
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            f = tmp
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            break
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    if f:
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        return f
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    else:
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        os.sys.stderr.write('error: vmm.cfg not found\n')
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        raise SystemExit(2)
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def update(cp):
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    if VERSION == '0.5.2':
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        upd_052(cp)
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    elif VERSION == '0.6.0':
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        os.sys.stdout.write('info: nothing to do for version %s\n' % VERSION)
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        return
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    else:
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        os.sys.stderr.write(
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            'error: the version %s is not supported by this script\n' % VERSION)
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        raise SystemExit(3)
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def get_cfg_parser(cf):
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    fh = file(cf, 'r')
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    cp = ConfigParser()
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    cp.readfp(fh)
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    fh.close()
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    return cp
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def update_cfg_file(cp, cf):
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    copy2(cf, cf+'.bak.'+str(time()))
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    fh = file(cf, 'w')
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    cp.write(fh)
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    fh.close()
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def add_sections(cp, sections):
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    for section in sections:
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        if not cp.has_section(section):
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            cp.add_section(section)
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def move_option(cp, src, dst):
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    ds, do = dst.split('.')
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    if not cp.has_option(ds, do):
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        ss, so = src.split('.')
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        cp.set(ds, do, cp.get(ss, so))
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        cp.remove_option(ss, so)
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        sect_opt.append((dst, 'R'))
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def add_option(cp, dst, val):
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    ds, do = dst.split('.')
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    if not cp.has_option(ds, do):
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        cp.set(ds, do, val)
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        sect_opt.append((dst, 'N'))
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def get_option(cp, src):
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    ss, so = src.split('.')
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    return cp.get(ss, so)
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def upd_052(cp):
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    add_sections(cp, ('domain', 'account'))
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    if cp.has_section('domdir'):
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        for src, dst in (('domdir.mode',   'domain.directory_mode'),
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                         ('domdir.delete', 'domain.delete_directory'),
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                         ('domdir.base',   'misc.base_directory')):
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            move_option(cp, src, dst)
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        cp.remove_section('domdir')
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    if cp.has_section('services'):
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        for service in cp.options('services'):
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            move_option(cp, 'services.%s'%service, 'account.%s'%service)
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        cp.remove_section('services')
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    for src, dst in (('maildir.mode',      'account.directory_mode'),
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                     ('maildir.diskusage', 'account.disk_usage'),
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                     ('maildir.delete',    'account.delete_directory'),
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                     ('misc.forcedel',     'domain.force_deletion'),
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                     ('misc.passwdscheme', 'misc.password_scheme'),
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                     ('misc.dovecotvers',  'misc.dovecot_version')):
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        move_option(cp, src, dst)
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    for dst, val in (('account.random_password', 'false'),
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                     ('account.password_length', '8'),
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                     ('domain.auto_postmaster',  'true')):
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        add_option(cp, dst, val)
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# def main():
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if __name__ == '__main__':
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    sect_opt = []
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    cf = get_config_file()
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    cp = get_cfg_parser(cf)
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    update(cp)
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    if len(sect_opt):
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        update_cfg_file(cp, cf)
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        sect_opt.sort()
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        print 'Please have a look at your configuration: %s' %cf
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        print 'This are your Renamed/New settings:'
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        for s_o, st in sect_opt:
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            print '%s   %s = %s' % (st, s_o, get_option(cp, s_o))
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        print
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