273 lines
11 KiB
Python
273 lines
11 KiB
Python
# Network in KlipperScreen is a connection in NetworkManager
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# Interface in KlipperScreen is a device in NetworkManager
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import logging
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import uuid
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import dbus
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import gi
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gi.require_version('Gdk', '3.0')
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from gi.repository import GLib
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from contextlib import suppress
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from ks_includes.wifi import WifiChannels
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from ks_includes import NetworkManager
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from dbus.mainloop.glib import DBusGMainLoop
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class WifiManager:
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networks_in_supplicant = []
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def __init__(self, interface_name, *args, **kwargs):
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super().__init__(*args, **kwargs)
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DBusGMainLoop(set_as_default=True)
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self._callbacks = {
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"connected": [],
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"connecting_status": [],
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"scan_results": [],
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"popup": [],
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}
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self.connected = False
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self.connected_ssid = None
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self.interface_name = interface_name
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self.known_networks = {} # List of known connections
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self.visible_networks = {} # List of visible access points
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self.ssid_by_path = {}
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self.path_by_ssid = {}
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self.hidden_ssid_index = 0
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self.wifi_dev = NetworkManager.NetworkManager.GetDeviceByIpIface(interface_name)
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self.wifi_dev.OnAccessPointAdded(self._ap_added)
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self.wifi_dev.OnAccessPointRemoved(self._ap_removed)
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self.wifi_dev.OnStateChanged(self._ap_state_changed)
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for ap in self.wifi_dev.GetAccessPoints():
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self._add_ap(ap)
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self._update_known_connections()
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self.initialized = True
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def _update_known_connections(self):
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self.known_networks = {}
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for con in NetworkManager.Settings.ListConnections():
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settings = con.GetSettings()
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if "802-11-wireless" in settings:
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ssid = settings["802-11-wireless"]['ssid']
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self.known_networks[ssid] = con
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def _ap_added(self, nm, interface, signal, access_point):
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with suppress(NetworkManager.ObjectVanished):
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access_point.OnPropertiesChanged(self._ap_prop_changed)
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ssid = self._add_ap(access_point)
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for cb in self._callbacks['scan_results']:
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args = (cb, [ssid], [])
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GLib.idle_add(*args)
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def _ap_removed(self, dev, interface, signal, access_point):
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path = access_point.object_path
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if path in self.ssid_by_path:
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ssid = self.ssid_by_path[path]
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self._remove_ap(path)
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for cb in self._callbacks['scan_results']:
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args = (cb, [ssid], [])
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GLib.idle_add(*args)
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def _ap_state_changed(self, nm, interface, signal, old_state, new_state, reason):
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msg = ""
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if new_state in (NetworkManager.NM_DEVICE_STATE_UNKNOWN, NetworkManager.NM_DEVICE_STATE_REASON_UNKNOWN):
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msg = "State is unknown"
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elif new_state == NetworkManager.NM_DEVICE_STATE_UNMANAGED:
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msg = "Error: Not managed by NetworkManager"
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elif new_state == NetworkManager.NM_DEVICE_STATE_UNAVAILABLE:
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msg = "Error: Not available for use:\nReasons may include the wireless switched off, missing firmware, etc."
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elif new_state == NetworkManager.NM_DEVICE_STATE_DISCONNECTED:
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msg = "Currently disconnected"
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elif new_state == NetworkManager.NM_DEVICE_STATE_PREPARE:
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msg = "Preparing the connection to the network"
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elif new_state == NetworkManager.NM_DEVICE_STATE_CONFIG:
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msg = "Connecting to the requested network..."
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elif new_state == NetworkManager.NM_DEVICE_STATE_NEED_AUTH:
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msg = "Authorizing"
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elif new_state == NetworkManager.NM_DEVICE_STATE_IP_CONFIG:
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msg = "Requesting IP addresses and routing information"
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elif new_state == NetworkManager.NM_DEVICE_STATE_IP_CHECK:
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msg = "Checking whether further action is required for the requested network connection"
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elif new_state == NetworkManager.NM_DEVICE_STATE_SECONDARIES:
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msg = "Waiting for a secondary connection (like a VPN)"
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elif new_state == NetworkManager.NM_DEVICE_STATE_ACTIVATED:
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msg = "Connected"
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elif new_state == NetworkManager.NM_DEVICE_STATE_DEACTIVATING:
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msg = "A disconnection from the current network connection was requested"
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elif new_state == NetworkManager.NM_DEVICE_STATE_FAILED:
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msg = "Failed to connect to the requested network"
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self.callback("popup", msg)
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elif new_state == NetworkManager.NM_DEVICE_STATE_REASON_DEPENDENCY_FAILED:
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msg = "A dependency of the connection failed"
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elif new_state == NetworkManager.NM_DEVICE_STATE_REASON_CARRIER:
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msg = ""
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else:
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logging.info(f"State {new_state}")
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if msg != "":
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self.callback("connecting_status", msg)
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if new_state == NetworkManager.NM_DEVICE_STATE_ACTIVATED:
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self.connected = True
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for cb in self._callbacks['connected']:
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args = (cb, self.get_connected_ssid(), None)
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GLib.idle_add(*args)
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else:
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self.connected = False
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def _ap_prop_changed(self, ap, interface, signal, properties):
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pass
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def _add_ap(self, ap):
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ssid = ap.Ssid
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if ssid == "":
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ssid = _("Hidden") + f" {self.hidden_ssid_index}"
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self.hidden_ssid_index += 1
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self.ssid_by_path[ap.object_path] = ssid
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self.path_by_ssid[ssid] = ap.object_path
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self.visible_networks[ap.object_path] = ap
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return ssid
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def _remove_ap(self, path):
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self.ssid_by_path.pop(path, None)
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self.visible_networks.pop(path, None)
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def add_callback(self, name, callback):
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if name in self._callbacks and callback not in self._callbacks[name]:
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self._callbacks[name].append(callback)
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def callback(self, cb_type, msg):
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if cb_type in self._callbacks:
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for cb in self._callbacks[cb_type]:
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GLib.idle_add(cb, msg)
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def add_network(self, ssid, psk):
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aps = self._visible_networks_by_ssid()
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if ssid in aps:
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ap = aps[ssid]
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new_connection = {
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'802-11-wireless': {
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'mode': 'infrastructure',
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'security': '802-11-wireless-security',
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'ssid': ssid
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},
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'802-11-wireless-security': {
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'auth-alg': 'open',
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'key-mgmt': 'wpa-psk',
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'psk': psk
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},
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'connection': {
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'id': ssid,
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'type': '802-11-wireless',
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'uuid': str(uuid.uuid4())
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},
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'ipv4': {
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'method': 'auto'
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},
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'ipv6': {
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'method': 'auto'
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}
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}
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try:
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NetworkManager.Settings.AddConnection(new_connection)
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except dbus.exceptions.DBusException as e:
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msg = _("Invalid password") if "802-11-wireless-security.psk" in e else f"{e}"
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self.callback("popup", msg)
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logging.info(f"Error adding network {e}")
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self._update_known_connections()
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return True
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def connect(self, ssid):
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if ssid in self.known_networks:
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conn = self.known_networks[ssid]
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with suppress(NetworkManager.ObjectVanished):
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msg = f"Connecting to: {ssid}"
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logging.info(msg)
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self.callback("connecting_status", msg)
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NetworkManager.NetworkManager.ActivateConnection(conn, self.wifi_dev, "/")
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def delete_network(self, ssid):
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for ssid in self.known_networks:
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con = self.known_networks[ssid]
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if con.GetSettings()['connection']['id'] == ssid:
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con.Delete()
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self._update_known_connections()
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def get_connected_ssid(self):
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if self.wifi_dev.SpecificDevice().ActiveAccessPoint:
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return self.wifi_dev.SpecificDevice().ActiveAccessPoint.Ssid
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return None
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def _get_connected_ap(self):
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return self.wifi_dev.SpecificDevice().ActiveAccessPoint
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def _visible_networks_by_ssid(self):
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aps = self.wifi_dev.GetAccessPoints()
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ret = {}
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for ap in aps:
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with suppress(NetworkManager.ObjectVanished):
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ret[ap.Ssid] = ap
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return ret
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def get_network_info(self, ssid):
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netinfo = {}
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if ssid in self.known_networks:
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con = self.known_networks[ssid]
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with suppress(NetworkManager.ObjectVanished):
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settings = con.GetSettings()
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if settings and '802-11-wireless' in settings:
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netinfo.update({
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"ssid": settings['802-11-wireless']['ssid'],
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"connected": self.get_connected_ssid() == ssid
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})
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path = self.path_by_ssid[ssid]
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aps = self.visible_networks
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if path in aps:
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ap = aps[path]
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with suppress(NetworkManager.ObjectVanished):
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netinfo.update({
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"mac": ap.HwAddress,
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"channel": WifiChannels.lookup(ap.Frequency)[1],
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"configured": ssid in self.known_networks,
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"frequency": str(ap.Frequency),
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"flags": ap.Flags,
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"ssid": ssid,
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"connected": self._get_connected_ap() == ap,
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"encryption": self._get_encryption(ap.RsnFlags),
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"signal_level_dBm": str(ap.Strength)
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})
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return netinfo
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@staticmethod
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def _get_encryption(flags):
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encryption = ""
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if (flags & NetworkManager.NM_802_11_AP_SEC_PAIR_WEP40 or
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flags & NetworkManager.NM_802_11_AP_SEC_PAIR_WEP104 or
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flags & NetworkManager.NM_802_11_AP_SEC_GROUP_WEP40 or
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flags & NetworkManager.NM_802_11_AP_SEC_GROUP_WEP104):
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encryption += "WEP "
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if (flags & NetworkManager.NM_802_11_AP_SEC_PAIR_TKIP or
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flags & NetworkManager.NM_802_11_AP_SEC_GROUP_TKIP):
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encryption += "TKIP "
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if (flags & NetworkManager.NM_802_11_AP_SEC_PAIR_CCMP or
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flags & NetworkManager.NM_802_11_AP_SEC_GROUP_CCMP):
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encryption += "AES "
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if flags & NetworkManager.NM_802_11_AP_SEC_KEY_MGMT_PSK:
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encryption += "WPA-PSK "
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if flags & NetworkManager.NM_802_11_AP_SEC_KEY_MGMT_802_1X:
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encryption += "802.1x "
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return encryption.strip()
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def get_networks(self):
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return list(set(list(self.known_networks.keys()) + list(self.ssid_by_path.values())))
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def get_supplicant_networks(self):
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return {ssid: {"ssid": ssid} for ssid in self.known_networks.keys()}
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def rescan(self):
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try:
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self.wifi_dev.RequestScan({})
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except dbus.exceptions.DBusException as e:
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logging.error(f"Error during rescan {e}")
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