update_config_0.4.x-0.5.py
author Pascal Volk <neverseen@users.sourceforge.net>
Sun, 27 Dec 2009 00:15:39 +0000
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#!/usr/bin/env python
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# -*- coding: UTF-8 -*-
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# Copyright (c) 2008 - 2009, VEB IT
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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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        os.sys.exit(2)
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def update(cp):
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    if VERSION == '0.4':
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        upd_040(cp)
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    elif VERSION == '0.5':
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        upd_050(cp)
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    elif VERSION == '0.5.1':
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        upd_051(cp)
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    elif VERSION == '0.5.2':
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        os.sys.stdout.write('info: nothing to do for version %s\n' % VERSION)
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        os.sys.exit(0)
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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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        os.sys.exit(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 upd_040(cp):
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    if not cp.has_option('maildir', 'name') or not cp.has_option('maildir',
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        'folders') or cp.has_option('maildir', 'folder'):
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        if not cp.has_option('maildir', 'name'):
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            if cp.has_option('maildir', 'folder'):
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                cp.set('maildir', 'name', cp.get('maildir', 'folder'))
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                cp.remove_option('maildir', 'folder')
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                sect_opt.append(('maildir', 'name'))
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            else:
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                cp.set('maildir', 'name', 'Maildir')
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                sect_opt.append(('maildir', 'name'))
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        if not cp.has_option('maildir', 'folders'):
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            cp.set('maildir', 'folders', 'Drafts:Sent:Templates:Trash')
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            sect_opt.append(('maildir', 'folders'))
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        if cp.has_option('maildir', 'folder'):
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            cp.remove_option('maildir', 'folder')
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    upd_050(cp)
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def upd_050(cp):
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    if not cp.has_option('bin', 'postconf'):
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        try:
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            postconf = os.sys.argv[1].strip()
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            if len(postconf):
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                cp.set('bin', 'postconf', postconf)
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                sect_opt.append(('bin', 'postconf'))
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            else: # possible?
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                cp.set('bin', 'postconf', '/usr/sbin/postconf')
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                sect_opt.append(('bin', 'postconf'))
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        except IndexError:
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            cp.set('bin', 'postconf', '/usr/sbin/postconf')
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            sect_opt.append(('bin', 'postconf'))
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    upd_051(cp)
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def upd_051(cp):
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    if not cp.has_option('misc', 'dovecotvers') or cp.has_option('services',
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            'managesieve'):
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        if not cp.has_option('misc', 'dovecotvers'):
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            cp.set('misc', 'dovecotvers', os.sys.argv[2].strip())
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            sect_opt.append(('misc', 'dovecotvers'))
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        if cp.has_option('services', 'managesieve'):
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            cp.set('services','sieve',cp.getboolean('services', 'managesieve'))
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            cp.remove_option('services', 'managesieve')
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            sect_opt.append(('services', 'sieve'))
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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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        print 'Please have a look at your configuration: %s' %cf
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        print 'and verify the value from:'
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        for s_o in sect_opt:
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            print '  [%s] %s' % s_o
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        print
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