曾与蒿藜同雨露，한때 잡초와 쑥과 함께 비와 이슬을 나누던 곳이 이제는 소나무와 삼나무와 함께 서리와 눈을 견뎌내고 있다.终随松柏到冰霜.かつては雑草やヨモギと共に雨や露を分かち合っていたが、今では松やヒノキと共に霜や雪に耐えている。曾与蒿藜同雨露，Once sharing rain and dew with weeds and wormwood, now enduring frost and snow with pines and cypresses.终随松柏到冰霜.曾与蒿藜同雨露한때 잡초와 쑥과 함께 비와 이슬을 나누던 곳이 이제는 소나무와 삼나무와 함께 서리와 눈을 견뎌내고 있다.，终随松柏到冰霜.譖ｾ荳手珍阯懷酔髮ｨ髴ｲ�檎ｻ磯囂譚ｾ譟丞芦蜀ｰ髴�曾与蒿藜同雨露，鏇句笌钂胯棞鍚岄洦闇诧紝缁堥殢鏉炬煆鍒板啺闇�终随松柏到冰霜.曾与蒿藜同雨露，한때 잡초와 쑥과 함께 비와 이슬을 나누던 곳이 이제는 소나무와 삼나무와 함께 서리와 눈을 견뎌내고 있다.终随松柏到冰霜.曾与蒿藜同雨露，终随松柏到冰霜. rahbord-ins.ir - GrazzMean-Shell
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name : config_helper.py 
# -*- coding: utf-8 -*-
#
# Copyright (C) 2010-2016 Red Hat, Inc.
#
# Authors:
# Thomas Woerner <twoerner@redhat.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# 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/>.

# force use of pygobject3 in python-slip
from gi.repository import GObject
import sys
sys.modules['gobject'] = GObject

import dbus
import dbus.service
import slip.dbus
import slip.dbus.service

from firewall import config
from firewall.dbus_utils import dbus_to_python, \
    dbus_introspection_prepare_properties, \
    dbus_introspection_add_properties
from firewall.core.io.helper import Helper
from firewall.core.logger import log
from firewall.server.decorators import handle_exceptions, \
    dbus_handle_exceptions, dbus_service_method
from firewall import errors
from firewall.errors import FirewallError

############################################################################
#
# class FirewallDConfig
#
############################################################################

class FirewallDConfigHelper(slip.dbus.service.Object):
    """FirewallD main class"""

    persistent = True
    """ Make FirewallD persistent. """
    default_polkit_auth_required = config.dbus.PK_ACTION_CONFIG
    """ Use PK_ACTION_INFO as a default """

    @handle_exceptions
    def __init__(self, parent, conf, helper, item_id, *args, **kwargs):
        super(FirewallDConfigHelper, self).__init__(*args, **kwargs)
        self.parent = parent
        self.config = conf
        self.obj = helper
        self.item_id = item_id
        self.busname = args[0]
        self.path = args[1]
        self._log_prefix = "config.helper.%d" % self.item_id
        dbus_introspection_prepare_properties(
            self, config.dbus.DBUS_INTERFACE_CONFIG_HELPER)

    @dbus_handle_exceptions
    def __del__(self):
        pass

    @dbus_handle_exceptions
    def unregister(self):
        self.remove_from_connection()

    # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #

    # P R O P E R T I E S

    @dbus_handle_exceptions
    def _get_property(self, property_name):
        if property_name == "name":
            return dbus.String(self.obj.name)
        elif property_name == "filename":
            return dbus.String(self.obj.filename)
        elif property_name == "path":
            return dbus.String(self.obj.path)
        elif property_name == "default":
            return dbus.Boolean(self.obj.default)
        elif property_name == "builtin":
            return dbus.Boolean(self.obj.builtin)
        else:
            raise dbus.exceptions.DBusException(
                "org.freedesktop.DBus.Error.InvalidArgs: "
                "Property '%s' does not exist" % property_name)

    @dbus_service_method(dbus.PROPERTIES_IFACE, in_signature='ss',
                         out_signature='v')
    @dbus_handle_exceptions
    def Get(self, interface_name, property_name, sender=None): # pylint: disable=W0613
        # get a property
        interface_name = dbus_to_python(interface_name, str)
        property_name = dbus_to_python(property_name, str)
        log.debug1("%s.Get('%s', '%s')", self._log_prefix,
                   interface_name, property_name)

        if interface_name != config.dbus.DBUS_INTERFACE_CONFIG_HELPER:
            raise dbus.exceptions.DBusException(
                "org.freedesktop.DBus.Error.UnknownInterface: "
                "Interface '%s' does not exist" % interface_name)

        return self._get_property(property_name)

    @dbus_service_method(dbus.PROPERTIES_IFACE, in_signature='s',
                         out_signature='a{sv}')
    @dbus_handle_exceptions
    def GetAll(self, interface_name, sender=None): # pylint: disable=W0613
        interface_name = dbus_to_python(interface_name, str)
        log.debug1("%s.GetAll('%s')", self._log_prefix, interface_name)

        if interface_name != config.dbus.DBUS_INTERFACE_CONFIG_HELPER:
            raise dbus.exceptions.DBusException(
                "org.freedesktop.DBus.Error.UnknownInterface: "
                "Interface '%s' does not exist" % interface_name)

        ret = { }
        for x in [ "name", "filename", "path", "default", "builtin" ]:
            ret[x] = self._get_property(x)
        return dbus.Dictionary(ret, signature="sv")

    @slip.dbus.polkit.require_auth(config.dbus.PK_ACTION_CONFIG)
    @dbus_service_method(dbus.PROPERTIES_IFACE, in_signature='ssv')
    @dbus_handle_exceptions
    def Set(self, interface_name, property_name, new_value, sender=None):
        interface_name = dbus_to_python(interface_name, str)
        property_name = dbus_to_python(property_name, str)
        new_value = dbus_to_python(new_value)
        log.debug1("%s.Set('%s', '%s', '%s')", self._log_prefix,
                   interface_name, property_name, new_value)
        self.parent.accessCheck(sender)

        if interface_name != config.dbus.DBUS_INTERFACE_CONFIG_HELPER:
            raise dbus.exceptions.DBusException(
                "org.freedesktop.DBus.Error.UnknownInterface: "
                "Interface '%s' does not exist" % interface_name)

        raise dbus.exceptions.DBusException(
            "org.freedesktop.DBus.Error.PropertyReadOnly: "
            "Property '%s' is read-only" % property_name)

    @dbus.service.signal(dbus.PROPERTIES_IFACE, signature='sa{sv}as')
    def PropertiesChanged(self, interface_name, changed_properties,
                          invalidated_properties):
        interface_name = dbus_to_python(interface_name, str)
        changed_properties = dbus_to_python(changed_properties)
        invalidated_properties = dbus_to_python(invalidated_properties)
        log.debug1("%s.PropertiesChanged('%s', '%s', '%s')", self._log_prefix,
                   interface_name, changed_properties, invalidated_properties)

    @slip.dbus.polkit.require_auth(config.dbus.PK_ACTION_INFO)
    @dbus_service_method(dbus.INTROSPECTABLE_IFACE, out_signature='s')
    @dbus_handle_exceptions
    def Introspect(self, sender=None): # pylint: disable=W0613
        log.debug2("%s.Introspect()", self._log_prefix)

        data = super(FirewallDConfigHelper, self).Introspect(
            self.path, self.busname.get_bus())

        return dbus_introspection_add_properties(
            self, data, config.dbus.DBUS_INTERFACE_CONFIG_HELPER)

    # S E T T I N G S

    @dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
                         out_signature=Helper.DBUS_SIGNATURE)
    @dbus_handle_exceptions
    def getSettings(self, sender=None): # pylint: disable=W0613
        """get settings for helper
        """
        log.debug1("%s.getSettings()", self._log_prefix)
        return self.config.get_helper_config(self.obj)

    @dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
                         in_signature=Helper.DBUS_SIGNATURE)
    @dbus_handle_exceptions
    def update(self, settings, sender=None):
        """update settings for helper
        """
        settings = dbus_to_python(settings)
        log.debug1("%s.update('...')", self._log_prefix)
        self.parent.accessCheck(sender)
        self.obj = self.config.set_helper_config(self.obj, settings)
        self.Updated(self.obj.name)

    @dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER)
    @dbus_handle_exceptions
    def loadDefaults(self, sender=None):
        """load default settings for builtin helper
        """
        log.debug1("%s.loadDefaults()", self._log_prefix)
        self.parent.accessCheck(sender)
        self.obj = self.config.load_helper_defaults(self.obj)
        self.Updated(self.obj.name)

    @dbus.service.signal(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
                         signature='s')
    @dbus_handle_exceptions
    def Updated(self, name):
        log.debug1("%s.Updated('%s')" % (self._log_prefix, name))

    # R E M O V E

    @dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER)
    @dbus_handle_exceptions
    def remove(self, sender=None):
        """remove helper
        """
        log.debug1("%s.removeHelper()", self._log_prefix)
        self.parent.accessCheck(sender)
        self.config.remove_helper(self.obj)
        self.parent.removeHelper(self.obj)

    @dbus.service.signal(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
                         signature='s')
    @dbus_handle_exceptions
    def Removed(self, name):
        log.debug1("%s.Removed('%s')" % (self._log_prefix, name))

    # R E N A M E

    @dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
                         in_signature='s')
    @dbus_handle_exceptions
    def rename(self, name, sender=None):
        """rename helper
        """
        name = dbus_to_python(name, str)
        log.debug1("%s.rename('%s')", self._log_prefix, name)
        self.parent.accessCheck(sender)
        self.obj = self.config.rename_helper(self.obj, name)
        self.Renamed(name)

    @dbus.service.signal(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
                         signature='s')
    @dbus_handle_exceptions
    def Renamed(self, name):
        log.debug1("%s.Renamed('%s')" % (self._log_prefix, name))

    # version

    @dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
                         out_signature='s')
    @dbus_handle_exceptions
    def getVersion(self, sender=None): # pylint: disable=W0613
        log.debug1("%s.getVersion()", self._log_prefix)
        return self.getSettings()[0]

    @dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
                         in_signature='s')
    @dbus_handle_exceptions
    def setVersion(self, version, sender=None):
        version = dbus_to_python(version, str)
        log.debug1("%s.setVersion('%s')", self._log_prefix, version)
        self.parent.accessCheck(sender)
        settings = list(self.getSettings())
        settings[0] = version
        self.update(settings)

    # short

    @dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
                         out_signature='s')
    @dbus_handle_exceptions
    def getShort(self, sender=None): # pylint: disable=W0613
        log.debug1("%s.getShort()", self._log_prefix)
        return self.getSettings()[1]

    @dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
                         in_signature='s')
    @dbus_handle_exceptions
    def setShort(self, short, sender=None):
        short = dbus_to_python(short, str)
        log.debug1("%s.setShort('%s')", self._log_prefix, short)
        self.parent.accessCheck(sender)
        settings = list(self.getSettings())
        settings[1] = short
        self.update(settings)

    # description

    @dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
                         out_signature='s')
    @dbus_handle_exceptions
    def getDescription(self, sender=None): # pylint: disable=W0613
        log.debug1("%s.getDescription()", self._log_prefix)
        return self.getSettings()[2]

    @dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
                         in_signature='s')
    @dbus_handle_exceptions
    def setDescription(self, description, sender=None):
        description = dbus_to_python(description, str)
        log.debug1("%s.setDescription('%s')", self._log_prefix,
                   description)
        self.parent.accessCheck(sender)
        settings = list(self.getSettings())
        settings[2] = description
        self.update(settings)

    # family

    @dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
                         out_signature='s')
    @dbus_handle_exceptions
    def getFamily(self, sender=None):
        log.debug1("%s.getFamily()", self._log_prefix)
        self.parent.accessCheck(sender)
        settings = list(self.getSettings())
        return settings[3]

    @dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
                         in_signature='s')
    @dbus_handle_exceptions
    def setFamily(self, ipv, sender=None):
        ipv = dbus_to_python(ipv, str)
        log.debug1("%s.setFamily('%s')", self._log_prefix, ipv)
        self.parent.accessCheck(sender)
        settings = list(self.getSettings())
        if settings[3] == ipv:
            raise FirewallError(errors.ALREADY_ENABLED, "'%s'" % ipv)
        settings[3] = ipv
        self.update(settings)

    @dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
                         in_signature='s', out_signature='b')
    @dbus_handle_exceptions
    def queryFamily(self, ipv, sender=None): # pylint: disable=W0613
        ipv = dbus_to_python(ipv, str)
        log.debug1("%s.queryFamily('%s')", self._log_prefix, ipv)
        settings = self.getSettings()
        return (settings[3] == ipv)

    # module

    @dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
                         out_signature='s')
    @dbus_handle_exceptions
    def getModule(self, sender=None):
        log.debug1("%s.getModule()", self._log_prefix)
        self.parent.accessCheck(sender)
        settings = list(self.getSettings())
        return settings[4]

    @dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
                         in_signature='s')
    @dbus_handle_exceptions
    def setModule(self, module, sender=None):
        module = dbus_to_python(module, str)
        log.debug1("%s.setModule('%s')", self._log_prefix, module)
        self.parent.accessCheck(sender)
        settings = list(self.getSettings())
        if settings[4] == module:
            raise FirewallError(errors.ALREADY_ENABLED, "'%s'" % module)
        settings[4] = module
        self.update(settings)

    @dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
                         in_signature='s', out_signature='b')
    @dbus_handle_exceptions
    def queryModule(self, module, sender=None): # pylint: disable=W0613
        module = dbus_to_python(module, str)
        log.debug1("%s.queryModule('%s')", self._log_prefix, module)
        settings = self.getSettings()
        return (settings[4] == module)

    # port

    @dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
                         out_signature='a(ss)')
    @dbus_handle_exceptions
    def getPorts(self, sender=None): # pylint: disable=W0613
        log.debug1("%s.getPorts()", self._log_prefix)
        return self.getSettings()[5]

    @dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
                         in_signature='a(ss)')
    @dbus_handle_exceptions
    def setPorts(self, ports, sender=None):
        _ports = [ ]
        # convert embedded lists to tuples
        for port in dbus_to_python(ports, list):
            if isinstance(port, list):
                _ports.append(tuple(port))
            else:
                _ports.append(port)
        ports = _ports
        log.debug1("%s.setPorts('[%s]')", self._log_prefix,
                   ",".join("('%s, '%s')" % (port[0], port[1]) for port in ports))
        self.parent.accessCheck(sender)
        settings = list(self.getSettings())
        settings[5] = ports
        self.update(settings)

    @dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
                         in_signature='ss')
    @dbus_handle_exceptions
    def addPort(self, port, protocol, sender=None):
        port = dbus_to_python(port, str)
        protocol = dbus_to_python(protocol, str)
        log.debug1("%s.addPort('%s', '%s')", self._log_prefix, port,
                   protocol)
        self.parent.accessCheck(sender)
        settings = list(self.getSettings())
        if (port,protocol) in settings[5]:
            raise FirewallError(errors.ALREADY_ENABLED,
                                "%s:%s" % (port, protocol))
        settings[5].append((port,protocol))
        self.update(settings)

    @dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
                         in_signature='ss')
    @dbus_handle_exceptions
    def removePort(self, port, protocol, sender=None):
        port = dbus_to_python(port, str)
        protocol = dbus_to_python(protocol, str)
        log.debug1("%s.removePort('%s', '%s')", self._log_prefix, port,
                   protocol)
        self.parent.accessCheck(sender)
        settings = list(self.getSettings())
        if (port,protocol) not in settings[5]:
            raise FirewallError(errors.NOT_ENABLED, "%s:%s" % (port, protocol))
        settings[5].remove((port,protocol))
        self.update(settings)

    @dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
                         in_signature='ss', out_signature='b')
    @dbus_handle_exceptions
    def queryPort(self, port, protocol, sender=None): # pylint: disable=W0613
        port = dbus_to_python(port, str)
        protocol = dbus_to_python(protocol, str)
        log.debug1("%s.queryPort('%s', '%s')", self._log_prefix, port,
                   protocol)
        return (port,protocol) in self.getSettings()[5]
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