VirtualMailManager/cli/main.py
author martin f. krafft <madduck@madduck.net>
Sun, 15 Apr 2012 13:17:21 +0200
branchv0.6.x
changeset 555 499c63f52462
parent 420 d4a341248500
child 568 14abdd04ddf5
permissions -rw-r--r--
Provide list{addresses,aliases,users,relocated} subcommands The patch provides the list{addresses,aliases,users,relocated} subcommands to the UI. All commands actually take the same path in the code and only one query is run with different parameters for each case. There are still two shortcomings: 1. With alias domains, the output order is not as one might want it, e.g. foo@example.org bar@example.org foo@example.com bar@example.com when it should really be foo@ twice and then bar@ twice. I have not found a way to modify the SQL accordingly. 2. The SELECT queries for Accounts, Alias and Relocated are hard-coded in common.py.

# -*- coding: UTF-8 -*-
# Copyright 2007 - 2011, Pascal Volk
# See COPYING for distribution information.
"""
    VirtualMailManager.cli.main
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~

    VirtualMailManager's command line interface.
"""

from ConfigParser import NoOptionError, NoSectionError

from VirtualMailManager import ENCODING, errors
from VirtualMailManager.config import BadOptionError, ConfigValueError
from VirtualMailManager.cli import w_err
from VirtualMailManager.cli.handler import CliHandler
from VirtualMailManager.constants import DATABASE_ERROR, EX_MISSING_ARGS, \
     EX_SUCCESS, EX_UNKNOWN_COMMAND, EX_USER_INTERRUPT, INVALID_ARGUMENT
from VirtualMailManager.cli.subcommands import RunContext, cmd_map, \
     update_cmd_map, usage


_ = lambda msg: msg


def _get_handler():
    """Try to get a CliHandler. Exit the program when an error occurs."""
    try:
        handler = CliHandler()
    except (errors.NotRootError, errors.PermissionError, errors.VMMError,
            errors.ConfigError), err:
        w_err(err.code, _(u'Error: %s') % err.msg)
    else:
        handler.cfg_install()
        return handler


def run(argv):
    update_cmd_map()
    if len(argv) < 2:
        usage(EX_MISSING_ARGS, _(u"You must specify a subcommand at least."))

    sub_cmd = argv[1].lower()
    if sub_cmd in cmd_map:
        cmd_func = cmd_map[sub_cmd].func
    else:
        for cmd in cmd_map.itervalues():
            if cmd.alias == sub_cmd:
                cmd_func = cmd.func
                sub_cmd = cmd.name
                break
        else:
            usage(EX_UNKNOWN_COMMAND, _(u"Unknown subcommand: '%s'") % sub_cmd)

    handler = _get_handler()
    run_ctx = RunContext(argv, handler, sub_cmd)
    try:
        cmd_func(run_ctx)
    except (EOFError, KeyboardInterrupt):
        # TP: We have to cry, because root has killed/interrupted vmm
        # with Ctrl+C or Ctrl+D.
        w_err(EX_USER_INTERRUPT, '', _(u'Ouch!'), '')
    except errors.VMMError, err:
        if err.code != DATABASE_ERROR:
            w_err(err.code, _(u'Error: %s') % err.msg)
        w_err(err.code, unicode(err.msg, ENCODING, 'replace'))
    except (BadOptionError, ConfigValueError), err:
        w_err(INVALID_ARGUMENT, _(u'Error: %s') % err)
    except NoSectionError, err:
        w_err(INVALID_ARGUMENT,
              _(u"Error: Unknown section: '%s'") % err.section)
    except NoOptionError, err:
        w_err(INVALID_ARGUMENT,
              _(u"Error: No option '%(option)s' in section: '%(section)s'") %
              {'option': err.option, 'section': err.section})
    if handler.has_warnings():
        w_err(0, _(u'Warnings:'), *handler.get_warnings())
    return EX_SUCCESS

del _