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| Current File : //snap/core22/2045/usr/share/subiquity/subiquitycore/ui/views/network_configure_wlan_interface.py |
import logging
from urwid import (
BoxAdapter,
connect_signal,
LineBox,
Text,
)
from subiquitycore.models.network import WLANConfig
from subiquitycore.ui.buttons import cancel_btn, menu_btn
from subiquitycore.ui.container import (
ListBox,
Pile,
WidgetWrap,
)
from subiquitycore.ui.form import Form, PasswordField, StringField
from subiquitycore.ui.stretchy import Stretchy
from subiquitycore.ui.utils import (
Color,
disabled,
Padding,
)
log = logging.getLogger(
'subiquitycore.network.network_configure_wlan_interface')
class NetworkList(WidgetWrap):
def __init__(self, parent, ssids):
self.parent = parent
button = cancel_btn(_("Cancel"), on_press=self.do_cancel)
ssid_list = [menu_btn(label=ssid, on_press=self.do_network)
for ssid in ssids if ssid]
p = Pile([BoxAdapter(ListBox(ssid_list), height=10),
Padding.fixed_10(button)])
box = LineBox(p, title=_("Select a network"))
super().__init__(box)
def do_network(self, sender):
self.parent.form.ssid.value = sender.label
self.parent.parent.remove_overlay()
def do_cancel(self, sender):
self.parent.parent.remove_overlay()
class WLANForm(Form):
ok_label = _("Save")
ssid = StringField(caption="Network Name:")
psk = PasswordField(caption="Password:")
def validate_psk(self):
psk = self.psk.value
if len(psk) == 0:
return
elif len(psk) < 8:
return "Password must be at least 8 characters long if present"
elif len(psk) > 63:
return "Password must be less than 63 characters long"
class NetworkConfigureWLANStretchy(Stretchy):
def __init__(self, parent, dev_info):
self.parent = parent
self.dev_info = dev_info
title = _("Network interface {nic} WIFI configuration").format(
nic=dev_info.name)
self.form = WLANForm()
connect_signal(self.form, 'submit', self.done)
connect_signal(self.form, 'cancel', self.cancel)
if self.dev_info.wlan.config.ssid:
self.form.ssid.value = self.dev_info.wlan.config.ssid
if self.dev_info.wlan.config.psk:
self.form.psk.value = self.dev_info.wlan.config.psk
self.ssid_row = self.form.ssid._table
self.psk_row = self.form.psk._table
self.ssid_row.bind(self.psk_row)
self.error = Text("")
self.inputs = Pile(self._build_iface_inputs())
widgets = [
self.inputs,
Padding.center_79(Color.info_error(self.error)),
self.form.buttons,
]
super().__init__(title, widgets, 0, 0)
def show_ssid_list(self, sender):
self.parent.show_overlay(
NetworkList(self, self.dev_info.wlan.visible_ssids),
width=60)
def start_scan(self, sender):
fp = self.inputs.focus_position - 1
while not self.inputs.contents[fp][0].selectable():
fp -= 1
self.inputs.focus_position = fp
self.parent.controller.start_scan(self.dev_info.name)
def _build_iface_inputs(self):
visible_ssids = self.dev_info.wlan.visible_ssids
if len(visible_ssids) > 0:
networks_btn = menu_btn("Choose a visible network",
on_press=self.show_ssid_list)
else:
networks_btn = disabled(menu_btn("No visible networks"))
scan_state = self.dev_info.wlan.scan_state
if not scan_state:
scan_btn = menu_btn("Scan for networks", on_press=self.start_scan)
elif scan_state.startswith('error'):
self.error.set_text('scan failed: %s' % (scan_state,))
scan_btn = disabled(menu_btn("Scanning for networks failed"))
else:
scan_btn = disabled(menu_btn("Scanning for networks"))
warning = (
"Only open or WPA2/PSK networks are supported at this time.")
col = [
Text(warning),
Text(""),
self.ssid_row,
Text(""),
Padding.fixed_32(networks_btn),
Padding.fixed_32(scan_btn),
Text(""),
self.psk_row,
]
return col
def update_link(self, dev_info):
if dev_info.name != self.dev_info.name:
return
self.dev_info = dev_info
self.inputs.contents = [(obj, ('pack', None))
for obj in self._build_iface_inputs()]
def done(self, sender):
if self.form.ssid.value:
ssid = self.form.ssid.value
else:
ssid = None
if self.form.psk.value:
psk = self.form.psk.value
else:
psk = None
self.parent.controller.set_wlan(
self.dev_info.name, WLANConfig(ssid=ssid, psk=psk))
self.parent.update_link(self.dev_info)
self.parent.remove_overlay()
def cancel(self, sender=None):
self.parent.remove_overlay()
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