320 lines
13 KiB
Python
320 lines
13 KiB
Python
import logging
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import re
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import fabric2
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from fabric2 import Connection
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from homeassistant.exceptions import HomeAssistantError
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_LOGGER = logging.getLogger(__name__)
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# _LOGGER.setLevel(logging.DEBUG)
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def create_ssh_connection(host: str, username: str, password: str, port=22):
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"""Create an SSH connection to a host using a username and password specified in the config flow."""
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conf = fabric2.Config()
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conf.run.hide = True
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conf.run.warn = True
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conf.warn = True
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conf.sudo.password = password
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conf.password = password
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connection = Connection(
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host=host, user=username, port=port, connect_timeout=3, connect_kwargs={"password": password},
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config=conf
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)
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_LOGGER.info("Successfully created SSH connection to %s using username %s", host, username)
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return connection
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def test_connection(connection: Connection):
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"""Test the connection to the host by running a simple command."""
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try:
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connection.run('ls')
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return True
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except Exception:
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return False
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def is_unix_system(connection: Connection):
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"""Return a boolean based on get_operating_system result."""
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return get_operating_system(connection) == "Linux/Unix"
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def get_operating_system_version(connection: Connection, is_unix=None):
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"""Return the running operating system name and version."""
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if is_unix is None:
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is_unix = is_unix_system(connection)
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if is_unix:
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result = connection.run(
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"awk -F'=' '/^NAME=|^VERSION=/{gsub(/\"/, \"\", $2); printf $2\" \"}\' /etc/os-release && echo").stdout
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if result == "":
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result = connection.run(
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"lsb_release -a | awk '/Description/ {print $2, $3, $4}'"
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).stdout
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return result
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else:
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return connection.run(
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'for /f "tokens=1 delims=|" %i in (\'wmic os get Name ^| findstr /B /C:"Microsoft"\') do @echo %i'
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).stdout
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def get_operating_system(connection: Connection):
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"""Return the running operating system type."""
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# TODO: might be a better way to do this
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result = connection.run("uname")
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if result.return_code == 0:
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return "Linux/Unix"
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else:
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return "Windows/Other"
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def shutdown_system(connection: Connection, is_unix=None):
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"""Shutdown the system."""
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if is_unix is None:
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is_unix = is_unix_system(connection)
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if is_unix:
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# First method using shutdown command
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result = connection.run("sudo shutdown -h now")
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if result.return_code != 0:
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# Try a second method using init command
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result = connection.run("sudo init 0")
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if result.return_code != 0:
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# Try a third method using systemctl command
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result = connection.run("sudo systemctl poweroff")
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if result.return_code != 0:
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raise HomeAssistantError(
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f"Cannot shutdown system running at {connection.host}, all methods failed.")
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else:
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# First method using shutdown command
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result = connection.run("shutdown /s /t 0")
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if result.return_code != 0:
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# Try a second method using init command
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result = connection.run("wmic os where Primary=TRUE call Shutdown")
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if result.return_code != 0:
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raise HomeAssistantError(f"Cannot shutdown system running at {connection.host}, all methods failed.")
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connection.close()
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def restart_system(connection: Connection, is_unix=None):
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"""Restart the system."""
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if is_unix is None:
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is_unix = is_unix_system(connection)
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if is_unix:
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# First method using shutdown command
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result = connection.run("sudo shutdown -r now")
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if result.return_code != 0:
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# Try a second method using init command
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result = connection.run("sudo init 6")
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if result.return_code != 0:
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# Try a third method using systemctl command
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result = connection.run("sudo systemctl reboot")
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if result.return_code != 0:
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raise HomeAssistantError(f"Cannot restart system running at {connection.host}, all methods failed.")
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else:
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# First method using shutdown command
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result = connection.run("shutdown /r /t 0")
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if result.return_code != 0:
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# Try a second method using wmic command
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result = connection.run("wmic os where Primary=TRUE call Reboot")
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if result.return_code != 0:
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raise HomeAssistantError(f"Cannot restart system running at {connection.host}, all methods failed.")
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def sleep_system(connection: Connection, is_unix=None):
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"""Put the system to sleep."""
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if is_unix is None:
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is_unix = is_unix_system(connection)
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if is_unix:
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# First method using systemctl command
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result = connection.run("sudo systemctl suspend")
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if result.return_code != 0:
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# Try a second method using pm-suspend command
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result = connection.run("sudo pm-suspend")
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if result.return_code != 0:
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raise HomeAssistantError(
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f"Cannot put system running at {connection.host} to sleep, all methods failed.")
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else:
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# First method using shutdown command
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result = connection.run("shutdown /h /t 0")
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if result.return_code != 0:
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# Try a second method using rundll32 command
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result = connection.run("rundll32.exe powrprof.dll,SetSuspendState Sleep")
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if result.return_code != 0:
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raise HomeAssistantError(
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f"Cannot put system running at {connection.host} to sleep, all methods failed.")
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def get_windows_entry_in_grub(connection: Connection):
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"""
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Grabs the Windows entry name in GRUB.
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Used later with grub-reboot to specify which entry to boot.
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"""
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result = connection.run("sudo awk -F \"'\" '/windows/ {print $2}' /boot/grub/grub.cfg")
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if result.return_code == 0:
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_LOGGER.debug("Found Windows entry in grub : " + result.stdout.strip())
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else:
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result = connection.run("sudo awk -F \"'\" '/windows/ {print $2}' /boot/grub2/grub.cfg")
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if result.return_code == 0:
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_LOGGER.debug("Successfully found Windows Grub entry (%s) for system running at %s.", result.stdout.strip(),
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connection.host)
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else:
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_LOGGER.error("Could not find Windows entry on computer with address %s.")
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return None
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# Check if the entry is valid
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if result.stdout.strip() != "":
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return result.stdout.strip()
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else:
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_LOGGER.error("Could not find Windows entry on computer with address %s.")
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return None
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def restart_to_windows_from_linux(connection: Connection):
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"""Restart a running Linux system to Windows."""
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if is_unix_system(connection):
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windows_entry = get_windows_entry_in_grub(connection)
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if windows_entry is not None:
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# First method using grub-reboot command
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result = connection.run(f"sudo grub-reboot \"{windows_entry}\"")
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if result.return_code != 0:
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# Try a second method using grub2-reboot command
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result = connection.run(f"sudo grub2-reboot \"{windows_entry}\"")
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# Restart system if successful grub(2)-reboot command
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if result.return_code == 0:
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_LOGGER.debug("Rebooting to Windows")
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restart_system(connection)
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else:
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raise HomeAssistantError(
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f"Could not restart system running on {connection.host} to Windows from Linux, all methods failed.")
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else:
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raise HomeAssistantError(f"Could not find Windows entry in grub for system running at {connection.host}.")
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else:
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raise HomeAssistantError(f"System running at {connection.host} is not a Linux system.")
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def change_monitors_config(connection: Connection, monitors_config: dict):
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"""From a YAML config, changes the monitors configuration on the host, only works on Linux and Gnome (for now)."""
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# TODO: Add support for Windows
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if is_unix_system(connection):
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command_parts = ["gnome-monitor-config", "set"]
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for monitor, settings in monitors_config.items():
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if settings.get('enabled', False):
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if 'primary' in settings and settings['primary']:
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command_parts.append(f'-LpM {monitor}')
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else:
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command_parts.append(f'-LM {monitor}')
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if 'position' in settings:
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command_parts.append(f'-x {settings["position"][0]} -y {settings["position"][1]}')
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if 'mode' in settings:
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command_parts.append(f'-m {settings["mode"]}')
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if 'scale' in settings:
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command_parts.append(f'-s {settings["scale"]}')
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if 'transform' in settings:
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command_parts.append(f'-t {settings["transform"]}')
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command = ' '.join(command_parts)
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_LOGGER.debug("Running command: %s", command)
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result = connection.run(command)
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if result.return_code == 0:
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_LOGGER.info("Successfully changed monitors config on system running on %s.", connection.host)
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else:
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raise HomeAssistantError("Could not change monitors config on system running on %s, check logs with debug",
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connection.host)
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else:
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raise HomeAssistantError("Not implemented yet for Windows OS.")
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# Use NIRCMD to change monitors config on Windows
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# setdisplay {monitor:index/name} [width] [height] [color bits] {refresh rate} {-updatereg} {-allusers}
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# TODO: Work in progress
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command_parts = ["nircmd.exe", "setdisplay"]
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for monitor, settings in monitors_config.items():
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if settings.get('enabled', False):
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if 'primary' in settings and settings['primary']:
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command_parts.append(f'{monitor} -primary')
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else:
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command_parts.append(f'{monitor} -secondary')
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if 'resolution' in settings:
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command_parts.append(f'{settings["resolution"][0]} {settings["resolution"][1]}')
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if 'refresh_rate' in settings:
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command_parts.append(f'-hz {settings["refresh_rate"]}')
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if 'color_bits' in settings:
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command_parts.append(f'-bits {settings["color_bits"]}')
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def silent_install_nircmd(connection: Connection):
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"""Silently install NIRCMD on a Windows system."""
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if not is_unix_system(connection):
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download_url = "http://www.nirsoft.net/utils/nircmd.zip"
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# Download NIRCMD and save it in C:\Users\{username}\AppData\Local\EasyComputerManager\nircmd.zip and unzip it
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commands = [
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f"powershell -Command \"Invoke-WebRequest -Uri {download_url} -OutFile ( New-Item -Path \"C:\\Users\\{connection.user}\\AppData\\Local\\EasyComputerManager\\nircmd.zip\" -Force ) -UseBasicParsing\"",
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f"powershell -Command \"Expand-Archive C:\\Users\\{connection.user}\\AppData\\Local\\EasyComputerManager\\nircmd.zip -DestinationPath C:\\Users\\{connection.user}\\AppData\\Local\\EasyComputerManager\\",
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f"powershell -Command \"Remove-Item C:\\Users\\{connection.user}\\AppData\\Local\\EasyComputerManager\\nircmd.zip\""
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]
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for command in commands:
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result = connection.run(command)
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if result.return_code != 0:
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_LOGGER.error("Could not install NIRCMD on system running on %s.", connection.host)
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return
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def parse_gnome_monitor_config(output):
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# SHOULD NOT BE USED YET, STILL IN DEVELOPMENT
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"""Parse the output of the gnome-monitor-config command to get the current monitor configuration."""
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monitors = []
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current_monitor = None
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for line in output.split('\n'):
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monitor_match = re.match(r'^Monitor \[ (.+?) \] (ON|OFF)$', line)
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if monitor_match:
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if current_monitor:
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monitors.append(current_monitor)
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source, status = monitor_match.groups()
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current_monitor = {'source': source, 'status': status, 'names': [], 'resolutions': []}
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elif current_monitor:
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display_name_match = re.match(r'^\s+display-name: (.+)$', line)
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resolution_match = re.match(r'^\s+(\d+x\d+@\d+(?:\.\d+)?).*$', line)
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if display_name_match:
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current_monitor['names'].append(display_name_match.group(1).replace('"', ''))
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elif resolution_match:
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current_monitor['resolutions'].append(resolution_match.group(1))
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if current_monitor:
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monitors.append(current_monitor)
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return monitors
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