296 lines
12 KiB
Python
296 lines
12 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, Overlay,
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LineBox, ProgressBar, WidgetWrap)
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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 BaseView
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log = logging.getLogger('subiquitycore.views.network')
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class ApplyingConfigWidget(WidgetWrap):
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def __init__(self, step_count, cancel_func):
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self.cancel_func = cancel_func
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button = cancel_btn(on_press=self.do_cancel)
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self.bar = ProgressBar(normal='progress_incomplete',
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complete='progress_complete',
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current=0, done=step_count)
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box = LineBox(Pile([self.bar,
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Padding.fixed_10(button)]),
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title="Applying network config")
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super().__init__(box)
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def advance(self):
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self.bar.current += 1
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def do_cancel(self, sender):
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self.cancel_func()
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class NetworkView(BaseView):
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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.error = Text("", align='center')
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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.center_79(Color.info_error(self.error)),
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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 show_overlay(self, overlay_widget):
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self.orig_w = self._w
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self._w = Overlay(top_w=overlay_widget,
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bottom_w=self._w,
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align='center',
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width=('relative', 60),
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min_width=80,
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valign='middle',
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height='pack')
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def remove_overlay(self, overlay_widget):
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# urwid note: we could also get orig_w as
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# self._w.contents[0][0], but this is clearer:
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self._w = self.orig_w
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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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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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col_2 = []
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# Display each interface -- name in first column, then configured IPs
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# in the second.
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log.debug('interfaces: {}'.format(ifaces))
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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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interface = self.model.get_interface(iface)
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ip_status = {
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'ipv4_addresses': interface.ipv4_addresses,
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'ipv6_addresses': interface.ipv6_addresses,
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'dhcp4_addresses': interface.dhcp4_addresses,
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'dhcp6_addresses': interface.dhcp6_addresses,
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'dhcp4': interface.dhcp4,
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'dhcp6': interface.dhcp6,
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}
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for addr in ip_status['dhcp4_addresses']:
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template = '{} (dhcp)'.format(addr[0])
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col_1.append(Text(""))
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col_2.append(Color.info_primary(Text(template)))
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for addr in ip_status['ipv4_addresses']:
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template = '{} (manual)'.format(addr)
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col_1.append(Text(""))
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col_2.append(Color.info_primary(Text(template)))
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for addr in ip_status['dhcp6_addresses']:
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template = '{} (dhcp)'.format(addr[0])
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col_1.append(Text(""))
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col_2.append(Color.info_primary(Text(template)))
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for addr in ip_status['ipv6_addresses']:
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template = '{} (manual)'.format(addr)
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col_1.append(Text(""))
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col_2.append(Color.info_primary(Text(template)))
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template = None
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if ( not ip_status['dhcp4'] and not ip_status['dhcp6'] ) \
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and len(ip_status['ipv4_addresses']) == 0 and \
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len(ip_status['ipv6_addresses']) == 0:
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template = "Not configured"
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if ip_status['dhcp4'] and ip_status['dhcp6'] and \
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len(ip_status['ipv4_addresses']) == 0 and \
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len(ip_status['dhcp4_addresses']) == 0 and \
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len(ip_status['ipv6_addresses']) == 0 and \
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len(ip_status['dhcp6_addresses']) == 0:
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template = "DHCP is enabled"
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elif ip_status['dhcp4'] and \
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len(ip_status['ipv4_addresses']) == 0 and \
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len(ip_status['dhcp4_addresses']) == 0:
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template = "DHCPv4 is enabled"
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elif ip_status['dhcp6'] and \
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len(ip_status['ipv6_addresses']) == 0 and \
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len(ip_status['dhcp6_addresses']) == 0:
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template = "DHCPv6 is enabled"
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if template is not None:
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col_1.append(Text(""))
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col_2.append(Color.info_primary(Text(template)))
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if interface.iftype == 'wlan':
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if interface.essid is not None:
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col_2.append(Text("Associated to '" + interface.essid + "'"))
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else:
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col_2.append(Text("Not associated."))
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# Other device info (MAC, vendor/model, speed)
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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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#log.debug('template: {}', template)
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log.debug('hwaddr:{}, {}'.format(hwaddr, template))
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col_2.append(Color.info_minor(Text(template)))
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col_1 = BoxAdapter(SimpleList(col_1),
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height=len(col_1))
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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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labels = []
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ifaces = self.model.get_all_interface_names()
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# Display default route status
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if self.model.default_v4_gateway is not None:
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v4_route_source = "via " + self.model.default_v4_gateway
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default_v4_route_w = Color.info_minor(
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Text(" IPv4 default route " + v4_route_source + "."))
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labels.append(default_v4_route_w)
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if self.model.default_v6_gateway is not None:
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v6_route_source = "via " + self.model.default_v6_gateway
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default_v6_route_w = Color.info_minor(
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Text(" IPv6 default route " + v6_route_source + "."))
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labels.append(default_v6_route_w)
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max_btn_len = 0
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buttons = []
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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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if len(opt) > max_btn_len:
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max_btn_len = len(opt)
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buttons.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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padding = getattr(Padding, 'left_{}'.format(max_btn_len + 10))
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buttons = [ padding(button) for button in buttons ]
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return Pile(labels + buttons)
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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 show_network_error(self, action):
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if action == 'generate':
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self.error.set_text("Network configuration failed; " + \
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"please verify your settings.")
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elif action == 'apply':
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self.error.set_text("Network configuration could not be applied; " + \
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"please verify your settings.")
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elif action == 'timeout':
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self.error.set_text("Network configuration timed out; " + \
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"please verify your settings.")
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elif action == 'canceled':
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self.error.set_text("Network configuration canceled.")
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else:
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self.error.set_text("An unexpected error has occurred; " + \
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"please verify your settings.")
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def done(self, result):
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self.signal.emit_signal('network:finish', self.model.render())
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def cancel(self, button):
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# Because of the double signal hack done in the controller we
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# need to pop two signals here.
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self.signal.signal_stack.pop()
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self.signal.prev_signal()
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