186 lines
7.2 KiB
Python
186 lines
7.2 KiB
Python
# Copyright 2015 Canonical, Ltd.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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""" Network Model
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Provides network device listings and extended network information
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"""
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import logging
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import textwrap
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from urwid import (ListBox, Pile, BoxAdapter,
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Text, Columns)
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import yaml
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from subiquitycore.ui.lists import SimpleList
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from subiquitycore.ui.buttons import cancel_btn, menu_btn, done_btn
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from subiquitycore.ui.utils import Padding, Color
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from subiquitycore.view import ViewPolicy
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log = logging.getLogger('subiquitycore.views.network')
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class NetworkView(ViewPolicy):
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def __init__(self, model, signal):
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self.model = model
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self.signal = signal
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self.items = []
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self.body = [
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Padding.center_79(self._build_model_inputs()),
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Padding.line_break(""),
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Padding.center_79(self._build_additional_options()),
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Padding.line_break(""),
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Padding.fixed_10(self._build_buttons()),
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]
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# FIXME determine which UX widget should have focus
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self.lb = ListBox(self.body)
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self.lb.set_focus(4) # _build_buttons
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super().__init__(self.lb)
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def _build_buttons(self):
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cancel = Color.button(cancel_btn(on_press=self.cancel),
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focus_map='button focus')
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done = Color.button(done_btn(on_press=self.done),
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focus_map='button focus')
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self.default_focus = done
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buttons = [done, cancel]
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return Pile(buttons, focus_item=done)
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def _build_model_inputs(self):
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log.info("probing for network devices")
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self.model.probe_network()
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ifaces = self.model.get_all_interface_names()
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ifname_width = 8 # default padding
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col_1 = []
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for iface in ifaces:
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col_1.append(
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Color.info_major(
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menu_btn(label=iface,
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on_press=self.on_net_dev_press),
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focus_map='button focus'))
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col_1.append(Text("")) # vertical holder for ipv6 status
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col_1.append(Text("")) # vertical holder for ipv4 status
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col_1 = BoxAdapter(SimpleList(col_1),
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height=len(col_1))
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col_2 = []
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for iface in ifaces:
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interface = self.model.get_interface(iface)
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ipv4_status = {
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'ip': interface.ip,
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'method': interface.ip_method,
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'provider': interface.ip_provider,
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}
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log.debug('ipv4_status: {}'.format(ipv4_status))
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ipv4_template = ''
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if ipv4_status['ip']:
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# FIXME: should show netmask or CIDR too
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ipv4_template += '{ip}'.format(**ipv4_status)
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if ipv4_status['method']:
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ipv4_template += ' ({method}) '.format(**ipv4_status)
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#if ipv4_status['provider']:
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# ipv4_template += 'from {provider} '.format(**ipv4_status)
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col_2.append(Color.info_primary(Text(ipv4_template)))
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# TODO: add IPv6 address information retrieval.
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col_2.append(Color.info_primary(Text("No IPv6 connection"))) # vert. holder for ipv6
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info = self.model.get_iface_info(iface)
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hwaddr = self.model.get_hw_addr(iface)
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log.debug('iface info:{}'.format(info))
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template = ''
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if hwaddr:
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template += '{} '.format(hwaddr)
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if info['bond_slave']:
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template += '(Bonded) '
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if not info['vendor'].lower().startswith('unknown'):
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vendor = textwrap.wrap(info['vendor'], 15)[0]
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template += '{} '.format(vendor)
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if not info['model'].lower().startswith('unknown'):
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model = textwrap.wrap(info['model'], 20)[0]
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template += '{} '.format(model)
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if info['speed']:
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template += '({speed})'.format(**info)
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col_2.append(Color.info_minor(Text(template)))
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if len(col_2):
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col_2 = BoxAdapter(SimpleList(col_2, is_selectable=False),
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height=len(col_2))
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ifname_width += len(max(ifaces, key=len))
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if ifname_width > 20:
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ifname_width = 20
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else:
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col_2 = Pile([Text("No network interfaces detected.")])
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return Columns([(ifname_width, col_1), col_2], 2)
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def _build_additional_options(self):
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opts = []
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ifaces = self.model.get_all_interface_names()
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# Display default route status
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if len(ifaces) > 0:
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default_route = ("Default route is ")
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route_source = ("whatever DHCP provides on any interface")
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# FIXME: correctly get default gateway
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if self.model.default_gateway is not None:
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route_source = self.model.default_gateway
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default_route_w = Color.info_minor(
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Text(" " + default_route + route_source))
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opts.append(default_route_w)
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for opt, sig, _ in self.model.get_menu():
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if ':set-default-route' in sig:
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if len(ifaces) < 2:
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log.debug('Skipping default route menu option'
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' (only one nic)')
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continue
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if ':bond-interfaces' in sig:
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not_bonded = [iface for iface in ifaces
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if not self.model.iface_is_bonded(iface)]
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if len(not_bonded) < 2:
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log.debug('Skipping bonding menu option'
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' (not enough available nics)')
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continue
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opts.append(
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Color.menu_button(
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menu_btn(label=opt,
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on_press=self.additional_menu_select),
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focus_map='button focus'))
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return Pile(opts)
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def additional_menu_select(self, result):
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self.signal.emit_signal(self.model.get_signal_by_name(result.label))
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def on_net_dev_press(self, result):
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log.debug("Selected network dev: {}".format(result.label))
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self.signal.emit_signal('menu:network:main:configure-interface',
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result.label)
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def done(self, result):
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actions = [iface.action.get() for iface in
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self.model.get_configured_interfaces()]
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actions += self.model.get_default_route()
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log.debug('Configured Network Actions:\n{}'.format(
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yaml.dump(actions, default_flow_style=False)))
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self.signal.emit_signal('network:finish', actions)
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def cancel(self, button):
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self.model.reset()
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self.signal.prev_signal()
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