Files
Modus/services/network.py
T

558 lines
20 KiB
Python

import subprocess
from typing import Any, List, Literal
import gi
from fabric.core.service import Property, Service, Signal
from fabric.utils import bulk_connect
from gi.repository import Gio
from loguru import logger
try:
gi.require_version("NM", "1.0")
from gi.repository import NM
except ValueError:
raise logger.error("Failed to start network manager")
class Wifi(Service):
"""A service to manage wifi devices"""
@Signal
def changed(self) -> None: ...
@Signal
def enabled(self) -> bool: ...
@Signal
def scanning(self, is_scanning: bool) -> None: ...
def __init__(self, client: NM.Client, device: NM.DeviceWifi, **kwargs):
self._client: NM.Client = client
self._device: NM.DeviceWifi = device
self._ap: NM.AccessPoint | None = None
self._ap_signal: int | None = None
self._scan_cancellable: Gio.Cancellable | None = None
self._is_scanning: bool = False
super().__init__(**kwargs)
self._client.connect(
"notify::wireless-enabled",
lambda *args: self.notifier("enabled", args),
)
if self._device:
bulk_connect(
self._device,
{
"notify::active-access-point": self._activate_ap,
"access-point-added": lambda *_: self.emit("changed"),
"access-point-removed": lambda *_: self.emit("changed"),
"state-changed": self.ap_update,
},
)
self._activate_ap()
def ap_update(self, *_):
self.emit("changed")
for sn in [
"enabled",
"internet",
"strength",
"frequency",
"access-points",
"ssid",
"state",
"icon-name",
]:
self.notify(sn)
def _activate_ap(self, *_):
if self._ap:
self._ap.disconnect(self._ap_signal)
self._ap = self._device.get_active_access_point()
if not self._ap:
return
self._ap_signal = self._ap.connect(
"notify::strength", lambda *args: self.ap_update()
) # type: ignore
def toggle_wifi(self):
self._client.wireless_set_enabled(not self._client.wireless_get_enabled())
def get_ap_security(
self, nm_ap: NM.AccessPoint
) -> Literal["WEP", "WPA1", "WPA2", "802.1X", "unsecured"]:
"""Parse the security flags to return a string with 'WPA2', etc."""
flags = nm_ap.get_flags()
wpa_flags = nm_ap.get_wpa_flags()
rsn_flags = nm_ap.get_rsn_flags()
sec_str = ""
if (
(flags & getattr(NM, "80211ApFlags").PRIVACY)
and (wpa_flags == 0)
and (rsn_flags == 0)
):
sec_str += " WEP"
if wpa_flags != 0:
sec_str += " WPA1"
if rsn_flags != 0:
sec_str += " WPA2"
if (wpa_flags & getattr(NM, "80211ApSecurityFlags").KEY_MGMT_802_1X) or (
rsn_flags & getattr(NM, "80211ApSecurityFlags").KEY_MGMT_802_1X
):
sec_str += " 802.1X"
# If there is no security use "--"
if sec_str == "":
sec_str = "unsecured"
return sec_str.lstrip()
def scan(self):
"""Start scanning for WiFi networks and emit scanning signal"""
if self._device and not self._is_scanning:
self._is_scanning = True
self._scan_cancellable = Gio.Cancellable()
self.notify("scanning") # Notify property change
self._device.request_scan_async(
self._scan_cancellable,
lambda device, result: self._scan_finished(device, result),
)
def _scan_finished(self, device, result):
"""Handle scan completion"""
try:
device.request_scan_finish(result)
except Exception as e:
logger.error(f"WiFi scan error: {e}")
finally:
self._is_scanning = False
self._scan_cancellable = None
self.notify("scanning") # Notify property change
def toggle_scan(self):
"""Toggle WiFi scanning on/off"""
if self._is_scanning:
# Stop current scan
if self._scan_cancellable:
self._scan_cancellable.cancel()
self._scan_cancellable = None
self._is_scanning = False
self.notify("scanning") # Notify property change
else:
# Start new scan
self.scan()
@Property(bool, "readable", default_value=False)
def scanning(self) -> bool:
"""Check if currently scanning"""
return self._is_scanning
def is_active_ap(self, name) -> bool:
return self._ap.get_bssid() == name if self._ap else False
def notifier(self, name: str, *_):
self.notify(name)
self.emit("changed")
return
def forget_access_point(self, ssid):
try:
# List all saved connections
result = subprocess.check_output(
"nmcli connection show", shell=True, text=True
)
# Find connection ID that matches SSID
for line in result.splitlines():
if ssid in line:
connection_id = line.split()[0]
subprocess.check_call(
f"nmcli connection delete id '{connection_id}'", shell=True
)
logger.info(
f"[NetworkService] Deleted saved connection: {connection_id}"
)
return True
logger.warning(
f"[NetworkService] No saved connection found for SSID: {ssid}"
)
return False
except subprocess.CalledProcessError as e:
logger.error(f"[NetworkService] Error forgetting connection: {e}")
return False
def connect_network(
self, ssid: str, password: str = "", remember: bool = True
) -> bool:
"""Connect to a WiFi network"""
if not ssid:
logger.error("[NetworkService] SSID cannot be empty")
return False
try:
# First try to connect using saved connection
try:
subprocess.run(["nmcli", "con", "up", ssid], check=True)
return True
except subprocess.CalledProcessError:
# If saved connection fails, try with password if provided
if password:
cmd = [
"nmcli",
"device",
"wifi",
"connect",
ssid,
"password",
password,
]
if not remember:
cmd.extend(["--temporary"])
subprocess.run(cmd, check=True)
return True
return False
except subprocess.CalledProcessError as e:
logger.error(f"[NetworkService] Failed connecting to network: {e}")
return False
def disconnect_network(self, ssid: str) -> bool:
"""Disconnect from a WiFi network"""
if not ssid:
logger.error("[NetworkService] SSID cannot be empty")
return False
try:
# Method 1: Try to disconnect using device-based approach (more reliable)
if self._device and self._device.get_active_connection():
active_connection = self._device.get_active_connection()
# Verify this is the connection we want to disconnect
if self._ap and NM.utils_ssid_to_utf8(self._ap.get_ssid().get_data()) == ssid:
try:
# Use NetworkManager API to deactivate the connection
self._client.deactivate_connection_async(
active_connection,
None,
lambda client, result: self._disconnect_finished(client, result, ssid)
)
logger.info(f"[NetworkService] Initiated disconnect from {ssid}")
# Force immediate state update to reflect disconnection
from gi.repository import GLib
GLib.timeout_add(100, lambda: self._force_state_update())
return True
except Exception as e:
logger.warning(f"[NetworkService] API disconnect failed: {e}, trying nmcli")
# Method 2: Fallback to nmcli with proper connection ID resolution
try:
# First, get the connection ID that matches the SSID
result = subprocess.check_output(
["nmcli", "-t", "-f", "NAME,TYPE", "connection", "show", "--active"],
text=True
)
connection_id = None
for line in result.strip().split('\n'):
if line:
name, conn_type = line.split(':', 1)
if conn_type == "802-11-wireless" and name == ssid:
connection_id = name
break
if connection_id:
subprocess.run(["nmcli", "con", "down", connection_id], check=True)
logger.info(f"[NetworkService] Disconnected from {ssid} using connection ID")
# Force immediate state update
from gi.repository import GLib
GLib.timeout_add(100, lambda: self._force_state_update())
return True
else:
# Method 3: Try disconnecting by device
device_name = self._device.get_iface() if self._device else None
if device_name:
subprocess.run(["nmcli", "device", "disconnect", device_name], check=True)
logger.info(f"[NetworkService] Disconnected device {device_name}")
# Force immediate state update
from gi.repository import GLib
GLib.timeout_add(100, lambda: self._force_state_update())
return True
else:
logger.error(f"[NetworkService] No active connection found for SSID: {ssid}")
return False
except subprocess.CalledProcessError as e:
logger.error(f"[NetworkService] nmcli disconnect failed: {e}")
return False
except Exception as e:
logger.error(f"[NetworkService] Failed disconnecting from network: {e}")
return False
def _disconnect_finished(self, client, result, ssid):
"""Handle async disconnect completion"""
try:
client.deactivate_connection_finish(result)
logger.info(f"[NetworkService] Successfully disconnected from {ssid}")
# Force state update after async completion
self._force_state_update()
except Exception as e:
logger.error(f"[NetworkService] Async disconnect failed: {e}")
def _force_state_update(self):
"""Force an immediate state update to reflect changes"""
# Trigger all relevant property notifications
self.ap_update()
return False # Remove timeout
@Property(bool, "read-write", default_value=False)
def enabled(self) -> bool: # noqa: F811
return bool(self._client.wireless_get_enabled())
@enabled.setter
def enabled(self, value: bool):
self._client.wireless_set_enabled(value)
@Property(int, "readable")
def strength(self):
return self._ap.get_strength() if self._ap else -1
@Property(str, "readable")
def icon_name(self):
if not self._ap:
return "network-wireless-disabled-symbolic"
if self.internet == "activated":
return {
80: "network-wireless-signal-excellent-symbolic",
60: "network-wireless-signal-good-symbolic",
40: "network-wireless-signal-ok-symbolic",
20: "network-wireless-signal-weak-symbolic",
00: "network-wireless-signal-none-symbolic",
}.get(
min(80, 20 * round(self._ap.get_strength() / 20)),
"network-wireless-no-route-symbolic",
)
if self.internet == "activating":
return "network-wireless-acquiring-symbolic"
return "network-wireless-offline-symbolic"
@Property(int, "readable")
def frequency(self):
return self._ap.get_frequency() if self._ap else -1
@Property(int, "readable")
def internet(self):
active_connection = self._device.get_active_connection()
if not active_connection:
return "disconnected"
return {
NM.ActiveConnectionState.ACTIVATED: "activated",
NM.ActiveConnectionState.ACTIVATING: "activating",
NM.ActiveConnectionState.DEACTIVATING: "deactivating",
NM.ActiveConnectionState.DEACTIVATED: "deactivated",
}.get(
active_connection.get_state(),
"unknown",
)
@Property(object, "readable")
def access_points(self) -> List[object]:
points: list[NM.AccessPoint] = self._device.get_access_points()
def make_ap_dict(ap: NM.AccessPoint):
return {
"bssid": ap.get_bssid(),
"last_seen": ap.get_last_seen(),
"ssid": NM.utils_ssid_to_utf8(ap.get_ssid().get_data())
if ap.get_ssid()
else "Unknown",
"active-ap": self._ap,
"strength": ap.get_strength(),
"frequency": ap.get_frequency(),
"icon-name": {
80: "network-wireless-signal-excellent-symbolic",
60: "network-wireless-signal-good-symbolic",
40: "network-wireless-signal-ok-symbolic",
20: "network-wireless-signal-weak-symbolic",
00: "network-wireless-signal-none-symbolic",
}.get(
min(80, 20 * round(ap.get_strength() / 20)),
"network-wireless-no-route-symbolic",
),
}
return list(map(make_ap_dict, points))
@Property(str, "readable")
def ssid(self):
# Check if we have an active connection first
active_connection = self._device.get_active_connection()
if not active_connection or active_connection.get_state() in [
NM.ActiveConnectionState.DEACTIVATED,
NM.ActiveConnectionState.DEACTIVATING
]:
return "Disconnected"
if not self._ap:
return "Disconnected"
ssid = self._ap.get_ssid().get_data()
return NM.utils_ssid_to_utf8(ssid) if ssid else "Unknown"
@Property(int, "readable")
def state(self):
return {
NM.DeviceState.UNMANAGED: "unmanaged",
NM.DeviceState.UNAVAILABLE: "unavailable",
NM.DeviceState.DISCONNECTED: "disconnected",
NM.DeviceState.PREPARE: "prepare",
NM.DeviceState.CONFIG: "config",
NM.DeviceState.NEED_AUTH: "need_auth",
NM.DeviceState.IP_CONFIG: "ip_config",
NM.DeviceState.IP_CHECK: "ip_check",
NM.DeviceState.SECONDARIES: "secondaries",
NM.DeviceState.ACTIVATED: "activated",
NM.DeviceState.DEACTIVATING: "deactivating",
NM.DeviceState.FAILED: "failed",
}.get(self._device.get_state(), "unknown")
class Ethernet(Service):
"""A service to manage ethernet devices"""
@Signal
def changed(self) -> None: ...
@Signal
def enabled(self) -> bool: ...
@Property(int, "readable")
def speed(self) -> int:
return self._device.get_speed()
@Property(str, "readable")
def internet(self) -> str:
return {
NM.ActiveConnectionState.ACTIVATED: "activated",
NM.ActiveConnectionState.ACTIVATING: "activating",
NM.ActiveConnectionState.DEACTIVATING: "deactivating",
NM.ActiveConnectionState.DEACTIVATED: "deactivated",
}.get(
self._device.get_active_connection().get_state(),
"disconnected",
)
@Property(str, "readable")
def icon_name(self) -> str:
network = self.internet
if network == "activated":
return "network-wired-symbolic"
elif network == "activating":
return "network-wired-acquiring-symbolic"
elif self._device.get_connectivity != NM.ConnectivityState.FULL:
return "network-wired-no-route-symbolic"
return "network-wired-disconnected-symbolic"
def __init__(self, client: NM.Client, device: NM.DeviceEthernet, **kwargs) -> None:
super().__init__(**kwargs)
self._client: NM.Client = client
self._device: NM.DeviceEthernet = device
for names in (
"active-connection",
"icon-name",
"internet",
"speed",
"state",
):
self._device.connect(f"notify::{names}", lambda *_: self.notifier(names))
self._device.connect("notify::speed", lambda *_: print(_))
def notifier(self, names):
self.notify(names)
self.emit("changed")
class NetworkService(Service):
"""A service to manage network devices"""
_instance = None
def __new__(cls):
if cls._instance is None:
cls._instance = super().__new__(cls)
return cls._instance
@Signal
def device_ready(self) -> None: ...
def __init__(self, **kwargs):
self._client: NM.Client | None = None
self.wifi_device: Wifi | None = None
self.ethernet_device: Ethernet | None = None
super().__init__(**kwargs)
NM.Client.new_async(
cancellable=None,
callback=self._init_network_client,
**kwargs,
)
def _init_network_client(self, client: NM.Client, task: Gio.Task, **kwargs):
self._client = client
wifi_device: NM.DeviceWifi | None = self._get_device(NM.DeviceType.WIFI) # type: ignore
ethernet_device: NM.DeviceEthernet | None = self._get_device(
NM.DeviceType.ETHERNET
)
if wifi_device:
self.wifi_device = Wifi(self._client, wifi_device)
self.emit("device-ready")
if ethernet_device:
self.ethernet_device = Ethernet(client=self._client, device=ethernet_device)
self.emit("device-ready")
self.notify("primary-device")
def _get_device(self, device_type) -> Any:
devices: List[NM.Device] = self._client.get_devices() # type: ignore
return next(
(
x
for x in devices
if x.get_device_type() == device_type
and x.get_active_connection() is not None
),
None,
)
def _get_primary_device(self) -> Literal["wifi", "wired"] | None:
if not self._client:
return None
if self._client.get_primary_connection() is None:
return "wifi"
return (
"wifi"
if "wireless"
in str(self._client.get_primary_connection().get_connection_type())
else "wired"
if "ethernet"
in str(self._client.get_primary_connection().get_connection_type())
else None
)
@Property(str, "readable")
def primary_device(self) -> Literal["wifi", "wired"] | None:
return self._get_primary_device()