Added qbittorrent sensor platform

.coveragerc

@@ -780,6 +780,7 @@ omit =
     homeassistant/components/sensor/pushbullet.py
     homeassistant/components/sensor/pvoutput.py
     homeassistant/components/sensor/pyload.py
+    homeassistant/components/sensor/qbittorrent.py
     homeassistant/components/sensor/qnap.py
     homeassistant/components/sensor/radarr.py
     homeassistant/components/sensor/rainbird.py

homeassistant/components/sensor/qbittorrent.py

@@ -0,0 +1,142 @@
+"""
+Support for monitoring the qBittorrent API.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/sensor.qbittorrent/
+"""
+import logging
+
+import voluptuous as vol
+
+from requests.exceptions import RequestException
+
+from homeassistant.components.sensor import PLATFORM_SCHEMA
+from homeassistant.const import (
+    CONF_NAME, CONF_PASSWORD, CONF_URL, CONF_USERNAME, STATE_IDLE)
+from homeassistant.helpers.entity import Entity
+import homeassistant.helpers.config_validation as cv
+from homeassistant.exceptions import PlatformNotReady
+
+REQUIREMENTS = ['python-qbittorrent==0.3.1']
+
+_LOGGER = logging.getLogger(__name__)
+
+SENSOR_TYPE_CURRENT_STATUS = 'current_status'
+SENSOR_TYPE_DOWNLOAD_SPEED = 'download_speed'
+SENSOR_TYPE_UPLOAD_SPEED = 'upload_speed'
+
+DEFAULT_NAME = 'qBittorrent'
+
+SENSOR_TYPES = {
+    SENSOR_TYPE_CURRENT_STATUS: ['Status', None],
+    SENSOR_TYPE_DOWNLOAD_SPEED: ['Down Speed', 'kB/s'],
+    SENSOR_TYPE_UPLOAD_SPEED: ['Up Speed', 'kB/s'],
+}
+
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
+    vol.Required(CONF_URL): cv.url,
+    vol.Required(CONF_USERNAME): cv.string,
+    vol.Required(CONF_PASSWORD): cv.string,
+    vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string
+})
+
+
+async def async_setup_platform(
+        hass, config, async_add_entities, discovery_info=None):
+    """Set up the qBittorrent sensors."""
+    from qbittorrent.client import Client, LoginRequired
+
+    try:
+        client = Client(config[CONF_URL])
+        client.login(config[CONF_USERNAME], config[CONF_PASSWORD])
+    except LoginRequired:
+        _LOGGER.error("Invalid authentication")
+        return
+    except RequestException:
+        _LOGGER.error("Connection failed")
+        raise PlatformNotReady
+
+    name = config.get(CONF_NAME)
+
+    dev = []
+    for sensor_type in SENSOR_TYPES:
+        sensor = QBittorrentSensor(sensor_type, client, name, LoginRequired)
+        dev.append(sensor)
+
+    async_add_entities(dev, True)
+
+
+def format_speed(speed):
+    """Return a bytes/s measurement as a human readable string."""
+    kb_spd = float(speed) / 1024
+    return round(kb_spd, 2 if kb_spd < 0.1 else 1)
+
+
+class QBittorrentSensor(Entity):
+    """Representation of an qBittorrent sensor."""
+
+    def __init__(self, sensor_type, qbittorrent_client,
+                 client_name, exception):
+        """Initialize the qBittorrent sensor."""
+        self._name = SENSOR_TYPES[sensor_type][0]
+        self.client = qbittorrent_client
+        self.type = sensor_type
+        self.client_name = client_name
+        self._state = None
+        self._unit_of_measurement = SENSOR_TYPES[sensor_type][1]
+        self._available = False
+        self._exception = exception
+
+    @property
+    def name(self):
+        """Return the name of the sensor."""
+        return '{} {}'.format(self.client_name, self._name)
+
+    @property
+    def state(self):
+        """Return the state of the sensor."""
+        return self._state
+
+    @property
+    def available(self):
+        """Return true if device is available."""
+        return self._available
+
+    @property
+    def unit_of_measurement(self):
+        """Return the unit of measurement of this entity, if any."""
+        return self._unit_of_measurement
+
+    async def async_update(self):
+        """Get the latest data from qBittorrent and updates the state."""
+        try:
+            data = self.client.sync()
+            self._available = True
+        except RequestException:
+            _LOGGER.error("Connection lost")
+            self._available = False
+            return
+        except self._exception:
+            _LOGGER.error("Invalid authentication")
+            return
+
+        if data is None:
+            return
+
+        download = data['server_state']['dl_info_speed']
+        upload = data['server_state']['up_info_speed']
+
+        if self.type == SENSOR_TYPE_CURRENT_STATUS:
+            if upload > 0 and download > 0:
+                self._state = 'up_down'
+            elif upload > 0 and download == 0:
+                self._state = 'seeding'
+            elif upload == 0 and download > 0:
+                self._state = 'downloading'
+            else:
+                self._state = STATE_IDLE
+
+        elif self.type == SENSOR_TYPE_DOWNLOAD_SPEED:
+            self._state = format_speed(download)
+        elif self.type == SENSOR_TYPE_UPLOAD_SPEED:
+            self._state = format_speed(upload)

requirements_all.txt

@@ -1233,6 +1233,9 @@ python-nmap==0.6.1
 # homeassistant.components.notify.pushover
 python-pushover==0.3
 
+# homeassistant.components.sensor.qbittorrent
+python-qbittorrent==0.3.1
+
 # homeassistant.components.sensor.ripple
 python-ripple-api==0.0.3