class BackendWirelessInterface(BaseInterface):
''' A Wireless Interface backend for Wicd. '''
@staticmethod
def get_type():
''' Returns type of network interface. '''
return 'wireless'
@staticmethod
def find_available_interfaces():
''' Returns list of strings of valid network interface names. '''
dev_dir = '/sys/class/net/'
ifnames = [iface for iface in os.listdir(dev_dir) \
if os.path.isdir(dev_dir + iface)
and 'wireless' in os.listdir(dev_dir + iface)]
return ifnames
def __init__(self, interface_name, status_change_callback):
''' Instantiates the BackendWirelessInterface. '''
BaseInterface.__init__(self, interface_name, status_change_callback)
if not interface_name in self.find_available_interfaces():
raise self.CannotCreateInterfaceException()
self.name = 'Wireless Interface %s' % self.interface_name
self.interface = WirelessInterface(self.interface_name)
self._status_change('idle')
@needsidle
def do_update(self):
""" Updates interface status. """
self._status_change('updating')
self._status_change('idle')
@needsidle
def do_scan(self):
''' Scans for new networks. '''
def finished_callback():
''' Sets the current interface state. '''
self._status_change('idle')
self.interface.scan(finished_callback)
self._status_change('scanning')
def get_status(self):
''' Returns interface status. '''
return "Wireless Interface. Connected %s" % \
self.get_connected_to_network()
@needsidle
def get_networks(self):
""" Returns a dictionary of network BSSIDs with the ESSIDs. """
networks = dict( [ ( network.bssid, network.essid ) for network in self.interface.networks ] )
return networks
def _get_network(self, the_property, value):
''' Returns the first network where property == value. '''
for network in self.interface.networks:
if hasattr(network, the_property):
if getattr(network, the_property) == value:
return network
@needsidle
def set_current_network(self, network_bssid):
''' Sets the current network to the one with the specified BSSID. '''
try:
networks = self.get_networks()
except AttributeError:
raise WicdError('Must run do_scan() before set_current_network()')
self.interface.current_network = self._get_network('bssid', network_bssid)
def set_network_property(self, name, value):
setattr(self.interface.current_network.profile, name, value)
def get_network_property(self, name):
if not hasattr(self.interface.current_network.profile, name):
raise WicdError('Current network has no property %s' % name)
return getattr(self.interface.current_network.profile, name)
@needsidle
def do_connect(self):
''' Connects to the wireless network set with set_current_network(). '''
if not self.interface.current_network:
raise WicdError('Must run set_current_network() before do_connect()')
def finished_callback():
''' Sets the current interface state. '''
self.connected = True
self._status_change('idle')
self._status_change('connecting')
self.interface.connect(finished_callback)
def do_cancel_connect(self):
''' Cancels the current connection attempt. '''
self.interface.cancel_connection_attempt()
@needsidle
def do_save(self):
''' Saves the wireless profiles. '''
self.interface.save_profiles()
class BackendWirelessInterface(BaseInterface):
''' A Wireless Interface backend for Wicd. '''
@staticmethod
def get_type():
''' Returns type of network interface. '''
return 'wireless'
@staticmethod
def find_available_interfaces():
''' Returns list of strings of valid network interface names. '''
dev_dir = '/sys/class/net/'
ifnames = [iface for iface in os.listdir(dev_dir) \
if os.path.isdir(dev_dir + iface)
and 'wireless' in os.listdir(dev_dir + iface)]
return ifnames
def __init__(self, interface_name, status_change_callback):
''' Instantiates the BackendWirelessInterface. '''
BaseInterface.__init__(self, interface_name, status_change_callback)
if not interface_name in self.find_available_interfaces():
raise self.CannotCreateInterfaceException(
'No wireless interface named %s exists.' % interface_name)
self.name = 'Wireless Interface %s' % self.interface_name
self.interface = WirelessInterface(self.interface_name)
self._status_change('idle')
@needsidle
def do_update(self):
""" Updates interface status. """
self._status_change('updating')
self._status_change('idle')
@needsidle
def do_scan(self):
''' Scans for new networks. '''
def finished_callback():
''' Sets the current interface state. '''
self._status_change('idle')
self.interface.scan(finished_callback)
self._status_change('scanning')
@needsidle
def get_networks(self):
""" Returns a dictionary of network BSSIDs with the ESSIDs. """
try:
networks = self.interface.networks
except AttributeError:
raise WicdError('Must run do_scan() before get_networks()')
networks = dict( [ ( network.bssid, network.essid ) for network in networks ] )
return networks
def _get_network(self, the_property, value):
''' Returns the first network where property == value. '''
if not hasattr(self.interface, 'networks'):
raise WicdError('Must run do_scan() before _get_networks()')
for network in self.interface.networks:
if hasattr(network, the_property):
if getattr(network, the_property) == value:
return network
raise WicdError('No network with the specified %s exists.' % the_property)
def get_has_profile_property(self, bssid, name):
network = self._get_network('bssid', bssid)
return name in network.profile
@needsidle
def set_profile_property(self, bssid, name, value):
network = self._get_network('bssid', bssid)
network.profile[name] = value
def get_profile_property(self, bssid, name):
network = self._get_network('bssid', bssid)
if name in network.profile:
return network.profile[name]
else:
raise WicdError('%s: no such profile property' % name)
def get_network_information(self, bssid, name):
network = self._get_network('bssid', bssid)
if hasattr(network, name):
return getattr(network, name)
else:
raise WicdError('%s: network has no such information' % name)
@needsidle
def do_connect(self, bssid):
''' Connects to the wireless network set with set_current_profile(). '''
def finished_callback(result):
''' Sets the current interface state. '''
self._state_change(result)
self._status_change('idle')
self._status_change('connecting')
network = self._get_network('bssid', bssid)
self.interface.connect(network, finished_callback)
def do_cancel_connect(self):
''' Cancels the current connection attempt. '''
self.interface.cancel_connection_attempt()
@needsidle
def do_save(self):
''' Saves the wireless profiles. '''
self.interface.save_profiles()
@needsidle
def do_autoconnect(self, value):
logging.debug('%s: do_autoconnect %s', self.interface.interface_name, value)
for network in self.interface.networks:
logging.debug('found network %s', network.essid)
if 'autoconnect' in network.profile \
and network.profile['autoconnect']:
logging.debug('autoconnecting to %s', network.essid)
self.do_connect(network.bssid)
return