Added support for Netgear wireless routers (tested with R6300)

README.md

@@ -16,7 +16,13 @@ It is currently able to do the following things:
 
 ![screenshot-states](https://raw.github.com/balloob/home-assistant/master/docs/states.png)
 
-It currently works with any wireless router running [Tomato firmware](http://www.polarcloud.com/tomato) in combination with [Philips Hue](http://meethue.com) and the [Google Chromecast](http://www.google.com/intl/en/chrome/devices/chromecast). The system is built modular so support for other wireless routers, other devices or actions can be implemented easily.
+Current compatible devices:
+ * Wireless router running [Tomato firmware](http://www.polarcloud.com/tomato)
+ * Netgear wireless routers (tested with R6300)
+ * [Philips Hue](http://meethue.com)
+ * [Google Chromecast](http://www.google.com/intl/en/chrome/devices/chromecast)
+
+The system is built modular so support for other wireless routers, other devices or actions can be implemented easily.
 
 Installation instructions
 -------------------------

homeassistant/bootstrap.py

@@ -42,12 +42,24 @@ def from_config_file(config_path):
         statusses.append(("Device Scanner - Tomato",
                           device_scanner.success_init))
 
-        if not device_scanner.success_init:
-            device_scanner = None
+    elif config.has_option('netgear', 'host') and \
+         config.has_option('netgear', 'username') and \
+         config.has_option('netgear', 'password'):
+
+        device_scanner = device.NetgearDeviceScanner(
+            config.get('netgear', 'host'),
+            config.get('netgear', 'username'),
+            config.get('netgear', 'password'))
+
+        statusses.append(("Device Scanner - Netgear",
+                          device_scanner.success_init))
 
     else:
         device_scanner = None
 
+    if device_scanner and not device_scanner.success_init:
+        device_scanner = None
+
     # Device Tracker
     if device_scanner:
         device.DeviceTracker(bus, statemachine, device_scanner)

homeassistant/components/device.py

@@ -33,7 +33,7 @@ STATE_HOME = 'device_home'
 TIME_SPAN_FOR_ERROR_IN_SCANNING = timedelta(minutes=1)
 
 # Return cached results if last scan was less then this time ago
-TOMATO_MIN_TIME_BETWEEN_SCANS = timedelta(seconds=5)
+MIN_TIME_BETWEEN_SCANS = timedelta(seconds=5)
 
 # Filename to save known devices to
 KNOWN_DEVICES_FILE = "known_devices.csv"
@@ -324,7 +324,7 @@ class TomatoDeviceScanner(object):
 
         # if date_updated is None or the date is too old we scan for new data
         if (not self.date_updated or datetime.now() - self.date_updated >
-           TOMATO_MIN_TIME_BETWEEN_SCANS):
+           MIN_TIME_BETWEEN_SCANS):
 
             self.logger.info("Tomato:Scanning")
 
@@ -389,3 +389,127 @@ class TomatoDeviceScanner(object):
             self.lock.release()
 
             return True
+
+
+class NetgearDeviceScanner(object):
+    """ This class queries a Netgear wireless router.
+
+    Tested with the Netgear R6300.
+    """
+
+    def __init__(self, host, username, password):
+        self.req = requests.Request('GET',
+                                    'http://{}/DEV_device.htm'.format(host),
+                                    auth=requests.auth.HTTPBasicAuth(
+                                        username, password)).prepare()
+
+        self.req_main_page = requests.Request('GET',
+                                    'http://{}/start.htm'.format(host),
+                                    auth=requests.auth.HTTPBasicAuth(
+                                        username, password)).prepare()
+
+
+        self.parse_api_pattern = re.compile(r'ttext">(.*?)<')
+
+        self.logger = logging.getLogger(__name__)
+        self.lock = threading.Lock()
+
+        self.date_updated = None
+        self.last_results = []
+
+        self.success_init = self._update_info()
+
+    def scan_devices(self):
+        """ Scans for new devices and return a
+            list containing found device ids. """
+
+        self._update_info()
+
+        return [item[2] for item in self.last_results]
+
+    def get_device_name(self, device):
+        """ Returns the name of the given device or None if we don't know. """
+
+        # Make sure there are results
+        if not self.date_updated:
+            self._update_info()
+
+        filter_named = [item[1] for item in self.last_results
+                        if item[2] == device]
+
+        if len(filter_named) == 0 or filter_named[0] == "--":
+            return None
+        else:
+            return filter_named[0]
+
+    def _update_info(self):
+        """ Retrieves latest information from the Netgear router.
+            Returns boolean if scanning successful. """
+
+        self.lock.acquire()
+
+        # if date_updated is None or the date is too old we scan for new data
+        if (not self.date_updated or datetime.now() - self.date_updated >
+           MIN_TIME_BETWEEN_SCANS):
+
+            self.logger.info("Netgear:Scanning")
+
+            try:
+                response = requests.Session().send(self.req, timeout=3)
+
+                # Netgear likes us to hit the main page first
+                # So first 401 we get we will first hit main page
+                if response.status_code == 401:
+                    response = requests.Session().send(self.req_main_page, timeout=3)
+                    response = requests.Session().send(self.req, timeout=3)
+
+                if response.status_code == 200:
+
+                    entries = self.parse_api_pattern.findall(response.text)
+
+                    if len(entries) % 3 != 0:
+                        self.logger.error("Netgear:Failed to parse response")
+                        return False
+
+                    else:
+                        self.last_results = [entries[i:i+3] for i
+                                             in xrange(0, len(entries), 3)]
+
+                        self.date_updated = datetime.now()
+
+                        return True
+
+                elif response.status_code == 401:
+                    # Authentication error
+                    self.logger.exception((
+                        "Netgear:Failed to authenticate, "
+                        "please check your username and password"))
+
+                    return False
+
+            except requests.exceptions.ConnectionError:
+                # We get this if we could not connect to the router or
+                # an invalid http_id was supplied
+                self.logger.exception((
+                    "Netgear:Failed to connect to the router"
+                    " or invalid http_id supplied"))
+
+                return False
+
+            except requests.exceptions.Timeout:
+                # We get this if we could not connect to the router or
+                # an invalid http_id was supplied
+                self.logger.exception(
+                    "Netgear:Connection to the router timed out")
+
+                return False
+
+            finally:
+                self.lock.release()
+
+        else:
+            # We acquired the lock before the IF check,
+            # release it before we return True
+            self.lock.release()
+
+            return True