def test_internet_connection():
"""Checks whether the is a network and internet connection."""
logger.info("<< Testing internet connection")
if get_lan_ip() == None:
logger.warning(" + No network connection")
logger.warning(" + No internet connection")
system_status.set_network_connection(False)
system_status.set_internet_connection(False)
logger.info(">> Testing internet connection complete")
return time.time()
else:
system_status.set_network_connection(True)
was_connected = True
try:
urllib2.urlopen("http://google.com", timeout = 2)
except urllib2.URLError:
logger.warning(" + No internet connection")
was_connected = False
system_status.set_internet_connection(was_connected)
logger.info(">> Testing internet connection complete")
return time.time()
def refresh_data(self):
"""Retrieves new data from the system."""
logger.info("<< Refreshing data")
self.image_revision = 0
self.local_images = dropbox_images.get_all_images()
self.user_config = user_config.retrieve_config()
self.current_ip = network.get_lan_ip()
logger.info(" + Images found in database: %d" % len(self.local_images))
logger.info(" + Wait until image switch: %ds" % self.user_config.image_switch_wait)
logger.info(">> Refreshing data complete")
self.refresh_time = time.time()
