mirror of https://github.com/home-assistant/core
136 lines
3.9 KiB
Python
136 lines
3.9 KiB
Python
"""Support for Aruba Access Points."""
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import logging
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import re
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import voluptuous as vol
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import homeassistant.helpers.config_validation as cv
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from homeassistant.components.device_tracker import (
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DOMAIN,
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PLATFORM_SCHEMA,
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DeviceScanner,
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)
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from homeassistant.const import CONF_HOST, CONF_PASSWORD, CONF_USERNAME
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_LOGGER = logging.getLogger(__name__)
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_DEVICES_REGEX = re.compile(
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r"(?P<name>([^\s]+)?)\s+"
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+ r"(?P<ip>([0-9]{1,3}[\.]){3}[0-9]{1,3})\s+"
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+ r"(?P<mac>([0-9a-f]{2}[:-]){5}([0-9a-f]{2}))\s+"
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)
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
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{
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vol.Required(CONF_HOST): cv.string,
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vol.Required(CONF_PASSWORD): cv.string,
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vol.Required(CONF_USERNAME): cv.string,
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}
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)
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def get_scanner(hass, config):
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"""Validate the configuration and return a Aruba scanner."""
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scanner = ArubaDeviceScanner(config[DOMAIN])
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return scanner if scanner.success_init else None
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class ArubaDeviceScanner(DeviceScanner):
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"""This class queries a Aruba Access Point for connected devices."""
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def __init__(self, config):
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"""Initialize the scanner."""
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self.host = config[CONF_HOST]
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self.username = config[CONF_USERNAME]
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self.password = config[CONF_PASSWORD]
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self.last_results = {}
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# Test the router is accessible.
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data = self.get_aruba_data()
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self.success_init = data is not None
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def scan_devices(self):
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"""Scan for new devices and return a list with found device IDs."""
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self._update_info()
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return [client["mac"] for client in self.last_results]
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def get_device_name(self, device):
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"""Return the name of the given device or None if we don't know."""
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if not self.last_results:
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return None
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for client in self.last_results:
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if client["mac"] == device:
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return client["name"]
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return None
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def _update_info(self):
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"""Ensure the information from the Aruba Access Point is up to date.
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Return boolean if scanning successful.
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"""
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if not self.success_init:
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return False
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data = self.get_aruba_data()
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if not data:
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return False
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self.last_results = data.values()
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return True
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def get_aruba_data(self):
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"""Retrieve data from Aruba Access Point and return parsed result."""
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import pexpect
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connect = "ssh {}@{}"
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ssh = pexpect.spawn(connect.format(self.username, self.host))
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query = ssh.expect(
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[
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"password:",
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pexpect.TIMEOUT,
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pexpect.EOF,
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"continue connecting (yes/no)?",
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"Host key verification failed.",
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"Connection refused",
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"Connection timed out",
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],
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timeout=120,
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)
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if query == 1:
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_LOGGER.error("Timeout")
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return
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if query == 2:
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_LOGGER.error("Unexpected response from router")
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return
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if query == 3:
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ssh.sendline("yes")
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ssh.expect("password:")
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elif query == 4:
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_LOGGER.error("Host key changed")
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return
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elif query == 5:
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_LOGGER.error("Connection refused by server")
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return
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elif query == 6:
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_LOGGER.error("Connection timed out")
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return
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ssh.sendline(self.password)
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ssh.expect("#")
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ssh.sendline("show clients")
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ssh.expect("#")
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devices_result = ssh.before.split(b"\r\n")
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ssh.sendline("exit")
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devices = {}
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for device in devices_result:
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match = _DEVICES_REGEX.search(device.decode("utf-8"))
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if match:
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devices[match.group("ip")] = {
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"ip": match.group("ip"),
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"mac": match.group("mac").upper(),
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"name": match.group("name"),
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}
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return devices
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