Add ClearPass Policy Manger device tracker (#21673)

* Adding ClearPass Policy Manger device tracker. Amending author

* Cleaned redundant code

* Updated .coveragerc

* Updated requirements_all.txt

* Implemented suggested changes partially.

* Implemented more suggested changes.

* Hound was unhappy

* Implement further suggested changes.

* Make Hound happy.

* Satisfy Travic CI

* Satisfy Travis CI #2

* Hound barking

* pylint else: return

* Implemented suggested changes minus AccessToken

* Removed access token logging

* Removed throttle import

* Removed period from debug string

* Make travis happy :(

* Moved source to new component structure.

* Forgot to rename source.

.coveragerc

@@ -110,6 +110,7 @@ omit =
     homeassistant/components/device_tracker/bt_home_hub_5.py
     homeassistant/components/device_tracker/bt_smarthub.py
     homeassistant/components/device_tracker/cisco_ios.py
+    homeassistant/components/cppm_tracker/device_tracker.py
     homeassistant/components/device_tracker/ddwrt.py
     homeassistant/components/device_tracker/fritz.py
     homeassistant/components/device_tracker/google_maps.py

homeassistant/components/cppm_tracker/__init__.py

@@ -0,0 +1 @@
+"""Add support for ClearPass Policy Manager."""

homeassistant/components/cppm_tracker/device_tracker.py

@@ -0,0 +1,85 @@
+"""
+Support for ClearPass Policy Manager.
+
+Allows tracking devices with CPPM.
+"""
+import logging
+from datetime import timedelta
+
+import voluptuous as vol
+import homeassistant.helpers.config_validation as cv
+from homeassistant.components.device_tracker import (
+    PLATFORM_SCHEMA, DeviceScanner, DOMAIN
+)
+from homeassistant.const import (
+    CONF_HOST, CONF_API_KEY
+)
+
+REQUIREMENTS = ['clearpasspy==1.0.2']
+
+SCAN_INTERVAL = timedelta(seconds=120)
+
+CLIENT_ID = 'client_id'
+
+GRANT_TYPE = 'client_credentials'
+
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
+    vol.Required(CONF_HOST): cv.string,
+    vol.Required(CLIENT_ID): cv.string,
+    vol.Required(CONF_API_KEY): cv.string,
+})
+
+_LOGGER = logging.getLogger(__name__)
+
+
+def get_scanner(hass, config):
+    """Initialize Scanner."""
+    from clearpasspy import ClearPass
+    data = {
+        'server': config[DOMAIN][CONF_HOST],
+        'grant_type': GRANT_TYPE,
+        'secret': config[DOMAIN][CONF_API_KEY],
+        'client': config[DOMAIN][CLIENT_ID]
+    }
+    cppm = ClearPass(data)
+    if cppm.access_token is None:
+        return None
+    _LOGGER.debug("Successfully received Access Token")
+    return CPPMDeviceScanner(cppm)
+
+
+class CPPMDeviceScanner(DeviceScanner):
+    """Initialize class."""
+
+    def __init__(self, cppm):
+        """Initialize class."""
+        self._cppm = cppm
+        self.results = None
+
+    def scan_devices(self):
+        """Initialize scanner."""
+        self.get_cppm_data()
+        return [device['mac'] for device in self.results]
+
+    def get_device_name(self, device):
+        """Retrieve device name."""
+        name = next((
+            result['name'] for result in self.results
+            if result['mac'] == device), None)
+        return name
+
+    def get_cppm_data(self):
+        """Retrieve data from Aruba Clearpass and return parsed result."""
+        endpoints = self._cppm.get_endpoints(100)['_embedded']['items']
+        devices = []
+        for item in endpoints:
+            if self._cppm.online_status(item['mac_address']):
+                device = {
+                    'mac': item['mac_address'],
+                    'name': item['mac_address']
+                }
+                devices.append(device)
+            else:
+                continue
+        _LOGGER.debug("Devices: %s", devices)
+        self.results = devices

requirements_all.txt

@@ -271,6 +271,9 @@ ciscomobilityexpress==0.1.2
 # homeassistant.components.notify.ciscospark
 ciscosparkapi==0.4.2
 
+# homeassistant.components.cppm_tracker.device_tracker
+clearpasspy==1.0.2
+
 # homeassistant.components.sensor.co2signal
 co2signal==0.4.2