#! /usr/bin/python
#
# ufw: front-end for Linux firewalling (cli)
#
# Copyright 2008-2011 Canonical Ltd.
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License version 3,
#    as published by the Free Software Foundation.
#
#    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 for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

import os
import re
import sys
import warnings

try:
    import ufw.frontend
    from ufw.common import UFWError
    from ufw.util import error, warn, msg
except Exception:
    print >> sys.stderr, "ERROR: Could not find required libraries. Aborting."
    sys.exit(1)

import gettext
gettext.install(ufw.common.programName)

version = "0.31.1-1"

# Internationalization
gettext.bindtextdomain(ufw.common.programName, \
                       os.path.join(ufw.common.trans_dir, 'messages'))
gettext.textdomain(ufw.common.programName)
_ = gettext.gettext

if sys.version_info[0] < 2 or \
   (sys.version_info[0] == 2 and sys.version_info[1] < 5):
    msg(ufw.common.programName + _(": Need at least python 2.5)\n"), \
        sys.stderr)
    sys.exit(1)

if sys.version_info[0] == 2 and sys.version_info[1] < 6:
    def clean_warning(message, category, filename, lineno, file=None):
        warn(message)
else:
    def clean_warning(message, category, filename, lineno, file=None, line=""):
        warn(message)

if __name__ == "__main__":
    warnings.showwarning = clean_warning
    app_action = False
    pr = None

    # Remember, will have to take --force into account if we use it with 'app'
    idx = 1
    if len(sys.argv) > 1 and sys.argv[1].lower() == "--dry-run":
        idx += 1

    if len(sys.argv) > idx and sys.argv[idx].lower() == "app":
        app_action = True

    try:
        pr = ufw.frontend.parse_command(sys.argv)
    except ValueError:
        msg(ufw.frontend.get_command_help())
        sys.exit(1)
    except UFWError, e:
        error(e.value)
    except Exception:
        raise

    if pr.action == "help" or pr.action == "--help":
        msg(ufw.frontend.get_command_help())
        sys.exit(0)
    elif pr.action == "version" or pr.action == "--version":
        msg(ufw.common.programName + " " + version)
        msg("Copyright 2008-2010 Canonical Ltd.")
        sys.exit(0)

    try:
        ui = ufw.frontend.UFWFrontend(pr.dryrun)
    except UFWError, e:
        error(e.value)
    except Exception:
        raise

    res = ""
    try:
        if app_action and pr.data.has_key('type') and pr.data['type'] == 'app':
            res = ui.do_application_action(pr.action, pr.data['name'])
        else:
            bailout = False
            if pr.action == "enable" and not pr.force and \
               not ui.continue_under_ssh():
                res = _("Aborted")
                bailout = True

            if not bailout:
                if pr.data.has_key('rule'):
                    res = ui.do_action(pr.action, pr.data['rule'], \
                                       pr.data['iptype'], pr.force)
                else:
                    res = ui.do_action(pr.action, "", "", pr.force)

        if res != "":
            msg(res)

    except UFWError, e:
        error(e.value)
    except Exception:
        raise

    sys.exit(0)