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wemosetup.py
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wemosetup.py
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import os
import io
import re
import sys
import time
import base64
import argparse
import subprocess
import itertools
import socket
import http.client
import urllib.request
import xml.dom.minidom
class SsdpDevice:
def __init__(self, setup_xml_url, timeout = 5):
setup_xml_response = urllib.request.urlopen(setup_xml_url, timeout = timeout).read().decode()
self.host_port = re.search(r'//(.+):(\d+)/', setup_xml_url).groups()
parsed_xml = xml.dom.minidom.parseString(setup_xml_response)
self.friendly_name = parsed_xml.getElementsByTagName('friendlyName')[0].firstChild.data
self.udn = parsed_xml.getElementsByTagName('UDN')[0].firstChild.data
self.services = {elem.getElementsByTagName('serviceType')[0].firstChild.data : elem.getElementsByTagName('controlURL')[0].firstChild.data for elem in parsed_xml.getElementsByTagName('service')}
def soap(self, service_name, method_name, response_tag = None, args = {}, timeout = 30):
service_type, control_url = [(service_type, control_url) for service_type, control_url in self.services.items() if service_name in service_type][0]
service_url = 'http://{}:{}/'.format(*self.host_port) + control_url.lstrip('/')
request_body = f'''<?xml version="1.0" encoding="utf-8"?>
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<s:Body>
<u:{method_name} xmlns:u="{service_type}">
''' + ''.join(itertools.starmap('<{0}>{1}</{0}>'.format, args.items())) + f'''
</u:{method_name}>
</s:Body>
</s:Envelope>'''
request_headers = {
'Content-Type' : 'text/xml; charset="utf-8"',
'SOAPACTION' : f'"{service_type}#{method_name}"',
'Content-Length': len(request_body),
'HOST' : '{}:{}'.format(*self.host_port)
}
response = urllib.request.urlopen(urllib.request.Request(service_url, request_body.encode(), headers = request_headers), timeout = timeout).read().decode()
if response_tag:
response = xml.dom.minidom.parseString(response).getElementsByTagName(response_tag)[0].firstChild.data
return response
@staticmethod
def discover_devices(service_type, timeout = 5, retries = 1, mx = 3):
host_port = ("239.255.255.250", 1900)
message = "\r\n".join([
'M-SEARCH * HTTP/1.1',
'HOST: {0}:{1}',
'MAN: "ssdp:discover"',
'ST: {service_type}','MX: {mx}','',''])
socket.setdefaulttimeout(timeout)
setup_xml_urls = []
for _ in range(retries):
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 2)
sock.sendto(message.format(*host_port, service_type = service_type, mx = mx).encode(), host_port)
while True:
try:
fake_socket = io.BytesIO(sock.recv(1024))
fake_socket.makefile = lambda *args, **kwargs: fake_socket
response = http.client.HTTPResponse(fake_socket)
response.begin()
setup_xml_urls.append(response.getheader('location'))
except socket.timeout:
break
return setup_xml_urls
def __str__(self):
return '{} ({}:{})'.format(self.friendly_name, *self.host_port)
class WemoDevice(SsdpDevice):
def __init__(self, host, port):
SsdpDevice.__init__(self, f'http://{host}:{port}/setup.xml')
@staticmethod
def discover_devices(*args, **kwargs):
return [re.search(r'//(.+):(\d+)/', setup_xml_url).groups() for setup_xml_url in SsdpDevice.discover_devices(service_type = 'urn:Belkin:service:basicevent:1', *args, **kwargs)]
def encrypt_wifi_password(self, password, meta_array):
keydata = meta_array[0][0:6] + meta_array[1] + meta_array[0][6:12]
salt, iv = keydata[0:8], keydata[0:16]
assert len(salt) == 8 and len(iv) == 16
stdout, stderr = subprocess.Popen(['openssl', 'enc', '-aes-128-cbc', '-md', 'md5', '-S', salt.encode('hex'), '-iv', iv.encode('hex'), '-pass', 'pass:' + keydata], stdin = subprocess.PIPE, stdout = subprocess.PIPE).communicate(password)
encrypted_password = base64.b64encode(stdout[16:]) # removing 16byte magic and salt prefix inserted by OpenSSL
encrypted_password += hex(len(encrypted_password))[2:] + ('0' if len(password) < 16 else '') + hex(len(password))[2:]
return encrypted_password
def generate_auth_code(self, device_id, private_key):
expiration_time = int(time.time()) + 200
stdout, stderr = subprocess.Popen(['openssl', 'sha1', '-binary', '-hmac', private_key], stdin = subprocess.PIPE, stdout = subprocess.PIPE).communicate(f'{device_id}\n\n{expiration_time}')
auth_code = "SDU {}:{}:{}".format(device_id, base64.b64encode(stdout).strip(), expiration_time)
return auth_code
def prettify_device_state(self, state):
return 'on' if state == 1 else 'off' if state == 0 else f'unknown ({state})'
def discover():
print()
print('Discovery of WeMo devices')
print()
host_ports = set(WemoDevice.discover_devices() + [('10.22.22.1', str(port)) for port in range(49151, 49156)])
discovered_devices = []
for host, port in sorted(host_ports):
try:
discovered_devices.append(WemoDevice(host, port))
except urllib.error.URLError:
continue
print('Discovered:' if discovered_devices else 'No devices discovered')
for device in discovered_devices:
print(' - ' + str(device))
print()
return discovered_devices
def connecthomenetwork(host, port, ssid, password, timeout = 10):
device = WemoDevice(host, port)
aps = [ap for ap in device.soap('WiFiSetup', 'GetApList', 'ApList').split('\n') if ap.startswith(ssid + '|')]
if len(aps) == 0:
print(f'Could not find network "{ssid}". Try again.')
return
elif len(aps) > 1:
print(f'Discovered {len(aps)} networks with SSID "{ssid}", using the first available..."')
channel, auth_mode, encryption_mode = re.match(r'.+\|(.+)\|.+\|(.+)/(.+),', aps[0]).groups()
meta_array = device.soap('metainfo', 'GetMetaInfo', 'MetaInfo').split('|')
connect_status = device.soap('WiFiSetup', 'ConnectHomeNetwork', 'PairingStatus', args = {
'ssid' : ssid,
'auth' : auth_mode,
'password' : device.encrypt_wifi_password(password, meta_array),
'encrypt' : encryption_mode,
'channel' : channel
})
time.sleep(timeout)
network_status = device.soap('WiFiSetup', 'GetNetworkStatus', 'NetworkStatus')
close_status = device.soap('WiFiSetup', 'CloseSetup', 'status')
print(f'Device failed to connect to the network: ({connect_status}, {network_status}). Try again.' if network_status not in ['1', '3'] or close_status != 'success' else f'Device {device} connected to network "{ssid}"')
def getenddevices(device = None, host = None, port = None, list_type = 'PAIRED_LIST'):
device = device or WemoDevice(host, port)
end_devices_decoded = device.soap('bridge', 'GetEndDevices', 'DeviceLists', args = {'DevUDN' : device.udn, 'ReqListType' : list_type}).replace('<', '<').replace('>', '>').replace('"', '"')
end_devices = {str(elem.getElementsByTagName('DeviceID')[0].firstChild.data) : {'' : None, '1' : 1, '0' : 0}[elem.getElementsByTagName('CurrentState')[0].firstChild.data.split(',')[0]] for elem in xml.dom.minidom.parseString(end_devices_decoded).getElementsByTagName('DeviceInfo')} if end_devices_decoded != '0' else {}
if host != None and port != None:
print(f'End devices of {device}:' if end_devices else 'No end devices of {device} were found')
for device_id, state in sorted(end_devices.items()):
print(' - {}, state: {}'.format(device_id, device.prettify_device_state(state)))
return end_devices
def addenddevices(host, port, timeout = 10):
device = WemoDevice(host, port)
device.soap('bridge', 'OpenNetwork', args = {'DevUDN' : device.udn})
time.sleep(timeout)
scanned_bulb_device_ids = getenddevices(device, list_type = 'SCAN_LIST').keys()
if scanned_bulb_device_ids:
device.soap('bridge', 'AddDeviceName', args = {'DeviceIDs' : ','.join(scanned_bulb_device_ids), 'FriendlyNames' : ','.join(scanned_bulb_device_ids)})
time.sleep(timeout)
paired_bulb_device_ids = getenddevices(device, list_type = 'PAIRED_LIST').keys()
device.soap('bridge', 'CloseNetwork', args = {'DevUDN' : device.udn})
print('Paired bulbs: ', sorted(set(scanned_bulb_device_ids) & set(paired_bulb_device_ids)))
def removeenddevices(host, port, timeout = 10):
device = WemoDevice(host, port)
device.soap('bridge', 'OpenNetwork', args = {'DevUDN' : device.udn})
time.sleep(timeout)
scanned_bulb_device_ids = getenddevices(device, list_type = 'PAIRED_LIST').keys()
if scanned_bulb_device_ids:
device.soap('bridge', 'RemoveDevice', args = {'DeviceIDs' : ','.join(scanned_bulb_device_ids), 'FriendlyNames' : ','.join(scanned_bulb_device_ids)})
time.sleep(timeout)
paired_bulb_device_ids = getenddevices(device, list_type = 'PAIRED_LIST').keys()
device.soap('bridge', 'CloseNetwork', args = {'DevUDN' : device.udn})
print('Bulbs removed:', sorted(scanned_bulb_device_ids), 'bulbs left:', sorted(paired_bulb_device_ids))
def resetenddevices(host, port, timeout = 30):
removeenddevices(host, port, timeout = timeout)
addenddevices(host, port, timeout = timeout)
def toggle(host, port):
device = WemoDevice(host, port)
if 'Bridge' in device.friendly_name:
bulbs = getenddevices(device, list_type = 'PAIRED_LIST')
new_binary_state = 1 - int(bulbs.items()[0][1] or 0)
device.soap('bridge', 'SetDeviceStatus', args = {'DeviceStatusList' :
''.join(['<?xml version="1.0" encoding="utf-8"?>'] +
['''<DeviceStatus><IsGroupAction>NO</IsGroupAction><DeviceID available="YES">{}</DeviceID><CapabilityID>{}</CapabilityID><CapabilityValue>{}</CapabilityValue></DeviceStatus>'''.format(bulb_device_id, 10006, new_binary_state) for bulb_device_id in bulbs.keys()]
).replace('<', '<').replace('>', '>').replace('"', '"')
})
else:
new_binary_state = 1 - int(device.soap('basicevent', 'GetBinaryState', 'BinaryState') == '1')
device.soap('basicevent', 'SetBinaryState', args = {'BinaryState' : new_binary_state})
print('{} toggled to: {}'.format(device, device.prettify_device_state(new_binary_state)))
def ifttt(host, port, device_id):
device = WemoDevice(host, port)
parse_xml = lambda resp, fields: [doc.getElementsByTagName(field)[0].firstChild.data for doc in [xml.dom.minidom.parseString(resp)] for field in fields]
error = lambda status: f'{device} failed to enable IFTTT: status code {status}'
home_id, private_key, remote_access_status = parse_xml(device.soap('remoteaccess', 'RemoteAccess', args = {'DeviceId' : device_id, 'DeviceName' : device_id, 'dst' : 0, 'HomeId' : '', 'MacAddr' : '', 'pluginprivateKey' : '', 'smartprivateKey' : '', 'smartUniqueId' : '', 'numSmartDev' : ''}), ['homeId', 'smartprivateKey', 'statusCode'])
if remote_access_status != 'S':
print(error(remote_access_status))
return
auth_code = device.generate_auth_code(device_id, private_key)
activation_code, generate_pin_status = parse_xml(urllib.request.urlopen(urllib.request.Request(f'https://api.xbcs.net:8443/apis/http/plugin/generatePin/{home_id}/IFTTT', headers = {'Content-Type' : 'application/xml', 'Authorization' : auth_code})).read().decode(), ['activationCode', 'status'])
if generate_pin_status != '0':
print(error(generate_pin_status))
return
print('Navigate to the following address to complete pairing:')
print(f'https://ifttt.com/wemo_activate?wemopin={activation_code}&done_url=wemo://status=0')
print()
print('and run the following JavaScript code when you get to the webpage that says you need to open it from the WeMo app:')
print('document.getElementById("WeMoAppMobileData").innerHTML = JSON.stringify({' + f'uniqueId:"{device_id}", homeId:"{home_id}", signature:"{auth_code}"' + '}); doSubmit(1);')
if __name__ == '__main__':
common = argparse.ArgumentParser(add_help = False)
common.add_argument('--ip', required = True, dest = 'host')
common.add_argument('--port', required = True, type = int)
parser = argparse.ArgumentParser()
subparsers = parser.add_subparsers()
subparsers.add_parser('discover').set_defaults(func = discover)
subparsers.add_parser('getenddevices', parents = [common]).set_defaults(func = getenddevices)
subparsers.add_parser('addenddevices', parents = [common]).set_defaults(func = addenddevices)
subparsers.add_parser('removeenddevices', parents = [common]).set_defaults(func = removeenddevices)
subparsers.add_parser('resetenddevices', parents = [common]).set_defaults(func = resetenddevices)
subparsers.add_parser('toggle', parents = [common]).set_defaults(func = toggle)
cmd = subparsers.add_parser('connecthomenetwork', parents = [common])
cmd.add_argument('--ssid', required = True)
cmd.add_argument('--password', required = True)
cmd.set_defaults(func = connecthomenetwork)
cmd = subparsers.add_parser('ifttt', parents = [common])
cmd.add_argument('--imei', required = True, type = int, dest = 'device_id')
cmd.set_defaults(func = ifttt)
args = vars(parser.parse_args())
cmd = args.pop('func')
cmd(**args)