def power(self, power=None):
if power is True:
cmd("nmcli nm wifi on")
elif power is False:
cmd("nmcli nm wifi off")
else:
response = cmd("nmcli nm wifi")
return "enabled" in response
def _clean(self, partial):
# list matching connections
response = cmd("nmcli --fields UUID,NAME con show | grep {}".format(partial))
# delete all of the matching connections
for line in response.splitlines():
if len(line) > 0:
uuid = line.split()[0]
cmd("nmcli con delete uuid {}".format(uuid))
def connect(self, ssid, password):
# clean up previous connection
self._clean(self.current())
# attempt to connect
response = cmd("nmcli dev wifi connect {} password {} iface {}".format(
ssid, password, self._interface))
# parse response
return not self._errorInResponse(response)
def current(self):
# list active connections for all interfaces
response = cmd("nmcli con status | grep {}".format(self.interface()))
# the current network is in the first column
for line in response.splitlines():
if len(line) > 0:
return line.split()[0]
# return none if there was not an active connection
return None
def connect(self, ssid, password):
# attempt to stop any active wpa_supplicant instances
# ideally we do this just for the interface we care about
cmd("sudo killall wpa_supplicant")
# don't do DHCP for GoPros; can cause dropouts with the server
cmd("sudo ifconfig {} 10.5.5.10/24 up".format(self._interface))
# create configuration file
f = open(self._file, "w")
f.write('network={{\n ssid="{}"\n psk="{}"\n}}\n'.format(
ssid, password))
f.close()
# attempt to connect
cmd("sudo wpa_supplicant -i{} -c{} -B".format(self._interface,
self._file))
# check that the connection was successful
# i've never seen it take more than 3 seconds for the link to establish
sleep(5)
if self.current() != ssid:
return False
# attempt to grab an IP
# better hope we are connected because the timeout here is really long
# cmd('sudo dhclient {}'.format(self._interface))
# parse response
return True
def interfaces(self):
# grab list of interfaces
response = cmd("nmcli dev")
# parse response
interfaces = []
for line in response.splitlines():
if "wireless" in line:
# this line has our interface name in the first column
interfaces.append(line.split()[0])
# return list
return interfaces
def interfaces(self):
# grab list of interfaces
response = cmd("iwconfig")
# parse response
interfaces = []
for line in response.splitlines():
if len(line) > 0 and not line.startswith(" "):
# this line contains an interface name!
if "no wireless extensions" not in line:
# this is a wireless interface
interfaces.append(line.split()[0])
# return list
return interfaces
def current(self):
# get interface status
response = cmd("iwconfig {}".format(self.interface()))
# the current network is on the first line.
# ex: wlan0 IEEE 802.11AC ESSID:"SSID" Nickname:"<WIFI@REALTEK>"
line = response.splitlines()[0]
match = re.search('ESSID:"(.+?)"', line)
if match is not None:
network = match.group(1)
if network != "off/any":
return network
# return none if there was not an active connection
return None
def setUp(self):
self.com = cmd('echo "test_ok"')
self.empty_com = cmd("echo -n")