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# Network configuration spoke classes
#
# Copyright (C) 2011  Red Hat, Inc.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# the GNU General Public License v.2, or (at your option) any later version.
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY expressed or implied, including the implied warranties 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, write to the
# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.  Any Red Hat trademarks that are incorporated in the
# source code or documentation are not subject to the GNU General Public
# License and may only be used or replicated with the express permission of
# Red Hat, Inc.
#
# Red Hat Author(s): Radek Vykydal <rvykydal@redhat.com>
#

# TODO:

# - move callback connection to initialize?
# - Automatically reconnecting wifi after failure
#   https://bugzilla.redhat.com/show_bug.cgi?id=712778#c1
# - secrets agent - use nm_applet?
#   see we_dont_have_nm_applet_as_secrets_agent
# - callback on NM_CLIENT_ACTIVE_CONNECTIONS
# - support connection to hidden network (ap-other)
# - device_is_stored
# - NMClient.CLIENT_WIRELESS_ENABLED callback (hw switch?) - test
# - nm-c-e run: blocking? logging?

from gi.repository import Gtk, AnacondaWidgets

from pyanaconda.flags import flags
from pyanaconda.ui.gui import GUIObject, communication
from pyanaconda.ui.gui.spokes import NormalSpoke, StandaloneSpoke
from pyanaconda.ui.gui.categories.software import SoftwareCategory
from pyanaconda.ui.gui.hubs.summary import SummaryHub
from pyanaconda.ui.gui.utils import gtk_call_once

from pyanaconda.network import NetworkDevice, netscriptsDir, kickstartNetworkData, getActiveNetDevs, logIfcfgFiles, update_hostname, sanityCheckHostname

from gi.repository import GLib, GObject, Pango, Gio, NetworkManager, NMClient
import dbus
import socket
import subprocess
import struct
import time
from dbus.mainloop.glib import DBusGMainLoop
dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)

import ctypes
ctypes.cdll.LoadLibrary("libnm-util.so.2")
nm_utils = ctypes.CDLL("libnm-util.so.2")

import gettext
_ = lambda x: gettext.ldgettext("anaconda", x)
N_ = lambda x: x
P_ = lambda x, y, z: gettext.ldngettext("anaconda", x, y, z)

import logging
log = logging.getLogger("anaconda")

# These are required for dbus API use we need because of
# NM_GI_BUGS: 767998, 773678
NM_SERVICE = "org.freedesktop.NetworkManager"
NM_MANAGER_PATH = "/org/freedesktop/NetworkManager"
NM_SETTINGS_PATH = "/org/freedesktop/NetworkManager/Settings"
NM_MANAGER_IFACE = "org.freedesktop.NetworkManager"
NM_SETTINGS_IFACE = "org.freedesktop.NetworkManager.Settings"
NM_CONNECTION_IFACE = "org.freedesktop.NetworkManager.Settings.Connection"
NM_DEVICE_IFACE = "org.freedesktop.NetworkManager.Device"
NM_802_11_AP_FLAGS_PRIVACY = 0x1
NM_802_11_AP_SEC_NONE = 0x0
NM_802_11_AP_SEC_KEY_MGMT_802_1X = 0x200
DBUS_PROPS_IFACE = "org.freedesktop.DBus.Properties"

def getNMObjProperty(object, nm_iface_suffix, property):
    props_iface = dbus.Interface(object, DBUS_PROPS_IFACE)
    return props_iface.Get("org.freedesktop.NetworkManager"+nm_iface_suffix,
                           property)


DEVICES_COLUMN_TITLE  = 2
DEVICES_COLUMN_OBJECT = 3


def localized_string_of_device_state(device, state):
    str = _("Status unknown (missing)")

    if state == NetworkManager.DeviceState.UNKNOWN:
        str = _("Status unknown")
    elif state == NetworkManager.DeviceState.UNMANAGED:
        str = _("Unmanaged")
    elif state == NetworkManager.DeviceState.UNAVAILABLE:
        if device.get_firmware_missing():
            str = _("Firmware missing")
        elif (device.get_device_type() == NetworkManager.DeviceType.ETHERNET
              and not device.get_carrier()):
            str = _("Cable unplugged")
        else:
            str = _("Unavailable")
    elif state == NetworkManager.DeviceState.DISCONNECTED:
        str = _("Disconnected")
    elif state in (NetworkManager.DeviceState.PREPARE,
                   NetworkManager.DeviceState.CONFIG,
                   NetworkManager.DeviceState.IP_CONFIG,
                   NetworkManager.DeviceState.IP_CHECK):
        str = _("Connecting")
    elif state == NetworkManager.DeviceState.NEED_AUTH:
        str = _("Authentication required")
    elif state == NetworkManager.DeviceState.ACTIVATED:
        str = _("Connected")
    elif state == NetworkManager.DeviceState.DEACTIVATING:
        str = _("Disconnecting")
    elif state == NetworkManager.DeviceState.FAILED:
        str = _("Connection failed")

    return str

configuration_of_disconnected_devices_allowed = True
# it is not in gnome-control-center but it makes sense
# for installer
# https://bugzilla.redhat.com/show_bug.cgi?id=704119

we_dont_have_nm_applet_as_secrets_agent = True
# so we have to disconnect from former ap before trying
# to connect to new one bound to fail due to no secrets

__all__ = ["NetworkSpoke", "NetworkStandaloneSpoke"]

class CellRendererSignal(Gtk.CellRendererPixbuf):

    __gtype_name__ = "CellRendererSignal"
    __gproperties__ = {
        "signal": (GObject.TYPE_UINT,
                   "Signal", "Signal",
                   0, GObject.G_MAXUINT, 0,
                   GObject.PARAM_READWRITE),
    }

    def __init__(self):
        Gtk.CellRendererPixbuf.__init__(self)
        self.signal = 0


    def do_get_property(self, property):
        if property.name == 'signal':
            return self.signal
        else:
            raise AttributeError, 'unknown property %s' % property.name

    def do_set_property(self, property, value):
        if property.name == 'signal':
            self.signal = value
            self._set_icon_name(value)
        else:
            raise AttributeError, 'unknown property %s' % property.name

    def _set_icon_name(self, value):

        if value == 0:
            self.set_property("gicon", None)

        if value < 20:
            icon_name = "network-wireless-signal-none-symbolic"
        elif value < 40:
            icon_name = "network-wireless-signal-weak-symbolic"
        elif value < 50:
            icon_name = "network-wireless-signal-ok-symbolic"
        elif value < 80:
            icon_name = "network-wireless-signal-good-symbolic"
        else:
            icon_name = "network-wireless-signal-excellent-symbolic"

        icon = Gio.ThemedIcon.new_with_default_fallbacks(icon_name)
        self.set_property("gicon", icon)


NM_AP_SEC_UNKNOWN = 0
NM_AP_SEC_NONE = 1
NM_AP_SEC_WEP = 2
NM_AP_SEC_WPA = 3
NM_AP_SEC_WPA2 = 4

class CellRendererSecurity(Gtk.CellRendererPixbuf):

    __gtype_name__ = "CellRendererSecurity"
    __gproperties__ = {
        "security": (GObject.TYPE_UINT,
                   "Security", "Security",
                   0, GObject.G_MAXUINT, 0,
                   GObject.PARAM_READWRITE),
    }

    def __init__(self):
        Gtk.CellRendererPixbuf.__init__(self)
        self.security = NM_AP_SEC_UNKNOWN
        self.icon_name = ""

    def do_get_property(self, property):
        if property.name == 'security':
            return self.security
        else:
            raise AttributeError, 'unknown property %s' % property.name

    def do_set_property(self, property, value):
        if property.name == 'security':
            self.security = value
            self._set_icon_name(value)
        else:
            raise AttributeError, 'unknown property %s' % property.name

    def _set_icon_name(self, security):
        self.icon_name = ""
        if security not in (NM_AP_SEC_NONE, NM_AP_SEC_UNKNOWN):
            self.icon_name = "network-wireless-encrypted-symbolic"

        self.set_property("icon-name", self.icon_name)

class NetworkControlBox(object):

    supported_device_types = [
        NetworkManager.DeviceType.ETHERNET,
        NetworkManager.DeviceType.WIFI,
    ]

    def __init__(self, builder):

        self.builder = builder

        # these buttons are only for vpn and proxy
        self.builder.get_object("add_toolbutton").set_sensitive(False)
        self.builder.get_object("remove_toolbutton").set_sensitive(False)

        not_supported = ["start_hotspot_button",
                         "stop_hotspot_button",
                         "heading_hotspot_network_name",
                         "heading_hotspot_security_key",
                         "label_hotspot_network_name",
                         "label_hotspot_security_key",
                         "devices_toolbar",
                         "hbox54",
                        ]

        do_not_show_in_refresh = ["heading_wireless_network_name",
                                  "combobox_wireless_network_name"]
        do_not_show_in_refresh += ["%s_%s_%s" % (widget, type, value)
                                   for widget in ["heading", "label"]
                                   for type in ["wired", "wireless"]
                                   for value in ["ipv4", "ipv6", "dns", "route"]]
        do_not_show_in_refresh += ["%s_wired_subnet" % widget
                                   for widget in ["heading", "label"]]

        for id in not_supported + do_not_show_in_refresh:
            self.builder.get_object(id).set_no_show_all(True)
            self.builder.get_object(id).hide()

        self.builder.get_object("notebook_types").set_show_tabs(False)

        # to prevent UI update signals races
        self._updating_device = False

        self.client = NMClient.Client.new()
        self.remote_settings = NMClient.RemoteSettings()

        # devices list
        # limited to wired and wireless
        treeview = self.builder.get_object("treeview_devices")
        self._add_device_columns(treeview)
        devices_store = self.builder.get_object("liststore_devices")
        devices_store.set_sort_column_id(2, Gtk.SortType.ASCENDING)
        selection = treeview.get_selection()
        selection.set_mode(Gtk.SelectionMode.BROWSE)
        selection.connect("changed", self.on_device_selection_changed)

        # wireless APs list
        combobox = self.builder.get_object("combobox_wireless_network_name")
        self._add_ap_icons(combobox)
        model = combobox.get_model()
        model.set_sort_column_id(2, Gtk.SortType.ASCENDING)
        combobox.connect("changed", self.on_wireless_ap_changed_cb)
        self.selected_ssid = None

        # NM Client
        self.client.connect("device-added", self.on_device_added)
        self.client.connect("device-removed", self.on_device_removed)

        self.builder.get_object("device_wired_off_switch").connect("notify::active",
                                                             self.on_device_off_toggled)
        self.builder.get_object("device_wireless_off_switch").connect("notify::active",
                                                             self.on_device_off_toggled)
        self.client.connect("notify::%s" % NMClient.CLIENT_WIRELESS_ENABLED,
                            self.on_wireless_enabled)

        self.builder.get_object("button_wired_options").connect("clicked",
                                                           self.on_edit_connection)
        self.builder.get_object("button_wireless_options").connect("clicked",
                                                              self.on_edit_connection)
        self.entry_hostname = self.builder.get_object("entry_hostname")


    @property
    def vbox(self):
        return self.builder.get_object("networkControlBox_vbox")


    def _add_ap_icons(self, combobox):
        cell = CellRendererSecurity()
        cell.set_padding(4, 0)
        combobox.pack_start(cell, False)
        combobox.add_attribute(cell, "security", 5)

        cell = CellRendererSignal()
        cell.set_padding(4, 0)
        #cell.set_property("xalign", 1.0)
        combobox.pack_start(cell, False)
        combobox.add_attribute(cell, "signal", 3)

    def _add_device_columns(self, treeview):
        rnd = Gtk.CellRendererPixbuf()
        rnd.set_property("stock-size", Gtk.IconSize.DND)
        # TODO Gtk3 icon-name? (also at other places)
        col = Gtk.TreeViewColumn("Icon", rnd, **{"icon-name":0})
        treeview.append_column(col)

        rnd = Gtk.CellRendererText()
        rnd.set_property("wrap-mode", Pango.WrapMode.WORD)
        col = Gtk.TreeViewColumn("Text", rnd, markup=2)
        col.set_sort_column_id(2)
        col.set_expand(True)
        treeview.append_column(col)

    def initialize(self):
        for device in self.client.get_devices():
            self.add_device(device)

        treeview = self.builder.get_object("treeview_devices")
        devices_store = self.builder.get_object("liststore_devices")
        selection = treeview.get_selection()
        itr = devices_store.get_iter_first()
        if itr:
            selection.select_iter(itr)

    def refresh(self):
        device = self.selected_device()
        self.refresh_ui(device)

    def activated_connections(self):
        """Returns list of tuples (device_name, ssid), ssid is None for wired."""
        active_devs = []

        for con in self.client.get_active_connections():
            if con.get_state() != NetworkManager.ActiveConnectionState.ACTIVATED:
                continue
            device = con.get_devices()[0]
            if device.get_device_type() == NetworkManager.DeviceType.ETHERNET:
                active_devs.append((device.get_iface(), None))
            elif device.get_device_type() == NetworkManager.DeviceType.WIFI:
                active_devs.append((device.get_iface(),
                                    device.get_active_access_point().get_ssid()))
        return active_devs

    # Signal handlers.
    def on_device_selection_changed(self, *args):
        device = self.selected_device()
        log.debug("network: selected device %s" % device.get_iface())
        self.refresh_ui(device)

    def on_device_state_changed(self, *args):
        device = args[0]
        new_state = args[1]
        if new_state == NetworkManager.DeviceState.SECONDARIES:
            return
        self._refresh_carrier_info()
        read_config_values = (new_state == NetworkManager.DeviceState.ACTIVATED)
        if device == self.selected_device():
            self.refresh_ui(device, read_config_values, new_state)

    def on_wireless_ap_changed_cb(self, combobox, *args):
        if self._updating_device:
            return
        iter = combobox.get_active_iter()
        if not iter:
            return

        device = self.selected_device()
        ap_obj_path, ssid_target = combobox.get_model().get(iter, 0, 1)
        self.selected_ssid = ssid_target
        if ap_obj_path == "ap-other...":
            return

        log.info("network: access point changed: %s" % ssid_target)

        if we_dont_have_nm_applet_as_secrets_agent:
            if self.find_active_connection_for_device(device):
                # TODO we should pass callback and block until really disconnected?
                # or is wireless reconnection stuff solved in NM? TEST!
                device.disconnect(None, None)

        con = self.find_connection_for_device(device, ssid_target)
        if con:
            self.client.activate_connection(con, device,
                                            None, None, None)
        else:
            self.client.add_and_activate_connection(None, device, ap_obj_path,
                                                    None, None)

    def on_device_added(self, client, device, *args):
        self.add_device(device)

    def on_device_removed(self, client, device, *args):
        self.remove_device(device)

    def on_edit_connection(self, *args):
        device = self.selected_device()
        if not device:
            return

        con = self.find_active_connection_for_device(device)
        ssid = None
        if not con and configuration_of_disconnected_devices_allowed:
            if device.get_device_type() == NetworkManager.DeviceType.WIFI:
                ssid = self.selected_ssid
            con = self.find_connection_for_device(device, ssid)

        if con:
            uuid = con.get_uuid()
        else:
            return

        # 871132 auto activate wireless connection after editing if it is not
        # already activated (assume entering secrets)
        activate = None
        if (device.get_device_type() == NetworkManager.DeviceType.WIFI
            and ssid and (device.get_iface(), ssid) not in self.activated_connections()):
            activate = (con, device)

        log.info("network: configuring connection %s device %s ssid %s" % (uuid, device.get_iface(), ssid))
        self.builder.get_object("button_wired_options").set_sensitive(False)
        proc = subprocess.Popen(["nm-connection-editor", "--edit", "%s" % uuid])

        GLib.child_watch_add(proc.pid, self.on_nmce_exited, activate)

    def on_nmce_exited(self, pid, condition, activate):
        self.builder.get_object("button_wired_options").set_sensitive(True)
        if activate:
            con, device = activate
            gtk_call_once(self._activate_connection_cb, con, device)
        logIfcfgFiles("nm-c-e run")

    def _activate_connection_cb(self, con, device):
        self.client.activate_connection(con, device,
                                        None, None, None)

    def on_wireless_enabled(self, *args):
        switch = self.builder.get_object("device_wireless_off_switch")
        self._updating_device = True
        switch.set_active(self.client.wireless_get_enabled())
        self._updating_device = False

    def on_device_off_toggled(self, switch, *args):
        if self._updating_device:
            return

        active = switch.get_active()
        device = self.selected_device()

        log.info("network: device %s switched %s" %
                  (device.get_iface(), "on" if active else "off"))

        dev_type = device.get_device_type()
        if dev_type == NetworkManager.DeviceType.ETHERNET:
            if active:
                cons = self.remote_settings.list_connections()
                dev_cons = device.filter_connections(cons)
                if dev_cons:
                    self.client.activate_connection(dev_cons[0], device,
                                                    None, None, None)
                else:
                    self.client.add_and_activate_connection(None, device, None,
                                                            None, None)
            else:
                device.disconnect(None, None)
        elif dev_type == NetworkManager.DeviceType.WIFI:
            self.client.wireless_set_enabled(active)

    def selected_device(self):
        selection = self.builder.get_object("treeview_devices").get_selection()
        (model, iter) = selection.get_selected()
        if not iter:
            return None
        return model.get(iter, DEVICES_COLUMN_OBJECT)[0]

    def find_connection_for_device(self, device, ssid=None):
        dev_hwaddr = device.get_hw_address()
        cons = self.remote_settings.list_connections()
        for con in cons:
            con_type = con.get_setting_connection().get_connection_type()
            if con_type == NetworkManager.SETTING_WIRED_SETTING_NAME:
                settings = con.get_setting_wired()
            elif con_type == NetworkManager.SETTING_WIRELESS_SETTING_NAME:
                settings = con.get_setting_wireless()
                if ssid and ssid != settings.get_ssid():
                    continue
            else:
                continue
            con_hwaddr = ":".join("%02X" % ord(bytechar) for bytechar in settings.get_mac_address())
            if con_hwaddr == dev_hwaddr:
                return con
        return None

    def find_active_connection_for_device(self, device):
        cons = self.client.get_active_connections()
        for con in cons:
            if con.get_devices()[0] is device:
                return self.remote_settings.get_connection_by_path(con.get_connection())
        return None

    def _device_is_stored(self, nm_device):
        """TODO check that device with Udi of nm_device is already in
        liststore"""
        return False

    def add_device(self, device):
        if self._device_is_stored(device):
            return

        if device.get_device_type() not in self.supported_device_types:
            return

        device.connect("state-changed", self.on_device_state_changed)

        self.builder.get_object("liststore_devices").append([
            self._dev_icon_name(device),
            self._dev_type_sort_value(device),
            self._dev_title(device),
            device,
        ])

    def _dev_icon_name(self, device):
        icon_name = ""
        dev_type = device.get_device_type()
        if  dev_type == NetworkManager.DeviceType.ETHERNET:
            if device.get_state() == NetworkManager.DeviceState.UNAVAILABLE:
                icon_name = "network-wired-disconnected"
            else:
                icon_name = "network-wired"
        elif dev_type == NetworkManager.DeviceType.WIFI:
            icon_name = "network-wireless"

        return icon_name

    def _dev_type_sort_value(self, device):
        dev_type = device.get_device_type()
        if dev_type == NetworkManager.DeviceType.ETHERNET:
            str = "1"
        elif dev_type == NetworkManager.DeviceType.WIFI:
            str = "2"
        else:
            str = "3"
        return str

    def _dev_title(self, device):
        unplugged = ''
        if (device.get_state() == NetworkManager.DeviceState.UNAVAILABLE
            and device.get_device_type() == NetworkManager.DeviceType.ETHERNET
            and not device.get_carrier()):
            # Translators: ethernet cable is unplugged
            unplugged = ', <i>%s</i>' % _("unplugged")
        title = '<span size="large">%s (%s%s)</span>' % (self._dev_type_str(device),
                                                         device.get_iface(),
                                                         unplugged)
        title += '\n<span size="small">%s %s</span>' % (device.get_vendor() or "",
                                                        device.get_product() or "")
        return title

    def _dev_type_str(self, device):
        dev_type = device.get_device_type()
        if dev_type == NetworkManager.DeviceType.UNKNOWN:
            title = _("Unknown")
        elif dev_type == NetworkManager.DeviceType.ETHERNET:
            title = _("Ethernet")
        elif dev_type == NetworkManager.DeviceType.WIFI:
            title = _("Wireless")
        else:
            title = ""
        return title

    def remove_device(self, device):
        # This should not concern wifi and ethernet devices,
        # just virtual devices e.g. vpn probably
        # TODO test!, remove perhaps
        model = self.builder.get_object("liststore_devices")
        rows_to_remove = []
        for row in model:
            if (device.get_udi() == row[DEVICES_COLUMN_OBJECT].get_udi()):
                rows_to_remove.append(row)
        for row in rows_to_remove:
            del(row)

    def refresh_ui(self, device, read_config_values=True, state=None):

        if not device:
            notebook = self.builder.get_object("notebook_types")
            notebook.set_current_page(5)
            return

        self._refresh_device_type_page(device)
        self._refresh_header_ui(device, state)
        self._refresh_speed_hwaddr(device, state)
        self._refresh_ap(device, state)
        if read_config_values:
            num_of_tries = 3
        else:
            num_of_tries = 0
        self._refresh_device_cfg((device, num_of_tries), state)

    def _refresh_device_cfg(self, dev_tries, state):
        device, num_of_tries = dev_tries
        ipv4cfg = None
        ipv6cfg = None

        # We might need to wait for config objects to become available
        if num_of_tries > 0:
            ipv4cfg = device.get_ip4_config()
            ipv6cfg = device.get_ip6_config()
            if not ipv4cfg and not ipv6cfg:
                GLib.timeout_add(300,
                                 self._refresh_device_cfg,
                                 (device, num_of_tries-1),
                                 state)
                return False

        dev_type = device.get_device_type()
        if dev_type == NetworkManager.DeviceType.ETHERNET:
            dt = "wired"
        elif dev_type == NetworkManager.DeviceType.WIFI:
            dt = "wireless"

        if state is None:
            state = device.get_state()
        if (ipv4cfg
            and state == NetworkManager.DeviceState.ACTIVATED):
            addr = socket.inet_ntoa(struct.pack('=L',
                                                ipv4cfg.get_addresses()[0].get_address()))
            self._set_device_info_value(dt, "ipv4", addr)
            dnss = " ".join([socket.inet_ntoa(struct.pack('=L', addr))
                             for addr in ipv4cfg.get_nameservers()])
            self._set_device_info_value(dt, "dns", dnss)
            gateway = socket.inet_ntoa(struct.pack('=L',
                                                   ipv4cfg.get_addresses()[0].get_gateway()))
            self._set_device_info_value(dt, "route", gateway)
            if dt == "wired":
                prefix = ipv4cfg.get_addresses()[0].get_prefix()
                nm_utils.nm_utils_ip4_prefix_to_netmask.argtypes = [ctypes.c_uint32]
                nm_utils.nm_utils_ip4_prefix_to_netmask.restype = ctypes.c_uint32
                netmask = nm_utils.nm_utils_ip4_prefix_to_netmask(prefix)
                netmask = socket.inet_ntoa(struct.pack('=L', netmask))
                self._set_device_info_value(dt, "subnet", netmask)
        else:
            self._set_device_info_value(dt, "ipv4", None)
            self._set_device_info_value(dt, "dns", None)
            self._set_device_info_value(dt, "route", None)
            if dt == "wired":
                self._set_device_info_value(dt, "subnet", None)

        # TODO NM_GI_BUGS - segfaults on get_addres(), get_prefix()
        ipv6_addr = None
        if (ipv6cfg
            and state == NetworkManager.DeviceState.ACTIVATED):
            config = dbus.SystemBus().get_object(NM_SERVICE, ipv6cfg.get_path())
            addr, prefix, gw = getNMObjProperty(config, ".IP6Config",
                                                "Addresses")[0]
            ipv6_addr = socket.inet_ntop(socket.AF_INET6, "".join(chr(byte) for byte in addr))
        self._set_device_info_value(dt, "ipv6", ipv6_addr)

        if ipv4cfg and ipv6_addr:
            self.builder.get_object("heading_%s_ipv4" % dt).set_label(_("IPv4 Address"))
            self.builder.get_object("heading_%s_ipv6" % dt).set_label(_("IPv6 Address"))
        elif ipv4cfg:
            self.builder.get_object("heading_%s_ipv4" % dt).set_label(_("IP Address"))
        elif ipv6_addr:
            self.builder.get_object("heading_%s_ipv6" % dt).set_label(_("IP Address"))

        return False

    def _refresh_ap(self, device, state=None):
        if device.get_device_type() != NetworkManager.DeviceType.WIFI:
            return

        if state is None:
            state = device.get_state()
        if state == NetworkManager.DeviceState.UNAVAILABLE:
            ap_str = None
        else:
            active_ap = device.get_active_access_point()
            if active_ap:
                active_ap_dbus = dbus.SystemBus().get_object(NM_SERVICE,
                                                             active_ap.get_path())
                ap_str = self._ap_security_string_dbus(active_ap_dbus)
                # TODO NM_GI_BUGS move to gi after fixed in NM
                # - NetworkManager.80211ApFlags
                # - active_ap.get_flags, get_wpa_flags, get_rsn_flags
                #ap_str = self._ap_security_string(active_ap)
            else:
                ap_str = ""

        self._set_device_info_value("wireless", "security", ap_str)

        if state == NetworkManager.DeviceState.UNAVAILABLE:
            self.builder.get_object("heading_wireless_network_name").hide()
            self.builder.get_object("combobox_wireless_network_name").hide()
        else:
            self.builder.get_object("heading_wireless_network_name").show()
            self.builder.get_object("combobox_wireless_network_name").show()

            store = self.builder.get_object("liststore_wireless_network")
            self._updating_device = True
            store.clear()
            aps = self._get_strongest_unique_aps(device.get_access_points())
            for ap in aps:
                active = active_ap and active_ap.get_path() == ap.get_path()
                self._add_ap(ap, active)
            # TODO: add access point other...
            if active_ap:
                combobox = self.builder.get_object("combobox_wireless_network_name")
                for i in combobox.get_model():
                    if i[1] == active_ap.get_ssid():
                        combobox.set_active_iter(i.iter)
                        self.selected_ssid = active_ap.get_ssid()
                        break
            self._updating_device = False

    def _refresh_speed_hwaddr(self, device, state=None):
        dev_type = device.get_device_type()
        if dev_type == NetworkManager.DeviceType.ETHERNET:
            dt = "wired"
            speed = device.get_speed()
        elif dev_type == NetworkManager.DeviceType.WIFI:
            dt = "wireless"
            speed = device.get_bitrate() / 1000

        if state is None:
            state = device.get_state()
        if state == NetworkManager.DeviceState.UNAVAILABLE:
            speed_str = None
        elif speed:
            speed_str = _("%d Mb/s") % speed
        else:
            speed_str = ""
        self._set_device_info_value(dt, "speed", speed_str)
        self._set_device_info_value(dt, "mac", device.get_hw_address())

    def _refresh_device_type_page(self, device):
        notebook = self.builder.get_object("notebook_types")
        dev_type = device.get_device_type()
        if dev_type == NetworkManager.DeviceType.ETHERNET:
            notebook.set_current_page(0)
        elif dev_type == NetworkManager.DeviceType.WIFI:
            notebook.set_current_page(1)

    def _refresh_carrier_info(self):
        for i in self.builder.get_object("liststore_devices"):
            i[DEVICES_COLUMN_TITLE] = self._dev_title(i[DEVICES_COLUMN_OBJECT])

    def _refresh_header_ui(self, device, state=None):
        dev_type = device.get_device_type()
        if dev_type == NetworkManager.DeviceType.ETHERNET:
            dev_type_str = "wired"
        elif dev_type == NetworkManager.DeviceType.WIFI:
            dev_type_str = "wireless"

        if dev_type_str == "wired":
            # update icon according to device status
            img = self.builder.get_object("image_wired_device")
            img.set_from_icon_name(self._dev_icon_name(device), Gtk.IconSize.DIALOG)

        # TODO: is this necessary? Isn't it static from glade?
        self.builder.get_object("label_%s_device" % dev_type_str).set_label(
            "%s (%s)" % (self._dev_type_str(device), device.get_iface()))

        if state is None:
            state = device.get_state()
        self.builder.get_object("label_%s_status" % dev_type_str).set_label(
            localized_string_of_device_state(device, state))

        switch = self.builder.get_object("device_%s_off_switch" % dev_type_str)
        if dev_type_str == "wired":
            switch.set_visible(state not in (NetworkManager.DeviceState.UNAVAILABLE,
                                             NetworkManager.DeviceState.UNMANAGED))
            self._updating_device = True
            switch.set_active(state not in (NetworkManager.DeviceState.UNMANAGED,
                                            NetworkManager.DeviceState.UNAVAILABLE,
                                            NetworkManager.DeviceState.DISCONNECTED,
                                            NetworkManager.DeviceState.DEACTIVATING,
                                            NetworkManager.DeviceState.FAILED))
            self._updating_device = False
            if not configuration_of_disconnected_devices_allowed:
                self.builder.get_object("button_%s_options" % dev_type_str).set_sensitive(state == NetworkManager.DeviceState.ACTIVATED)
        elif dev_type_str == "wireless":
            self.on_wireless_enabled()

    def _set_device_info_value(self, dev_type_str, info, value_str):
        heading = self.builder.get_object("heading_%s_%s" % (dev_type_str, info))
        value_label = self.builder.get_object("label_%s_%s" % (dev_type_str, info))
        if value_str is None:
            heading.hide()
            value_label.hide()
        else:
            heading.show()
            value_label.show()
            value_label.set_label(value_str)

    # TODO NM_GI_BUGS use glib methods for mode and security (dbus obj or nm obj?)
    def _add_ap(self, ap, active=False):
        ssid = ap.get_ssid()
        if not ssid:
            return

        # TODO NM_GI_BUGS
        ap_dbus = dbus.SystemBus().get_object(NM_SERVICE, ap.get_path())
        mode = getNMObjProperty(ap_dbus, ".AccessPoint", "Mode")

        security = self._ap_security_dbus(ap)

        store = self.builder.get_object("liststore_wireless_network")
        # the third column is for sorting
        iter = store.append([ap.get_path(),
                             ssid,
                             ssid,
                             ap.get_strength(),
                             mode,
                             security])
        if active:
            self.builder.get_object("combobox_wireless_network_name").set_active_iter(iter)

    def _get_strongest_unique_aps(self, access_points):
        strongest_aps = {}
        for ap in access_points:
            ssid = ap.get_ssid()
            if ssid in strongest_aps:
                #print "DBG: found %s duplicate" % ssid
                if ap.get_strength() > strongest_aps[ssid].get_strength():
                    strongest_aps[ssid] = ap
                    #print "DBG: ...stronger"
            else:
                strongest_aps[ssid] = ap


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