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auth.py
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auth.py
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import struct
import time
import logging
from datetime import datetime
from Crypto.Cipher import AES
from Queue import Queue, Empty
import binascii
from bluepy.btle import *
import crc16
import os
import struct
from constants import UUIDS, AUTH_STATES, ALERT_TYPES, QUEUE_TYPES
from threading import Event
from pynput.keyboard import Key, Controller
keyboard = Controller()
slide1 = ""
class AuthenticationDelegate(DefaultDelegate):
"""This Class inherits DefaultDelegate to handle the authentication process."""
def __init__(self, device):
DefaultDelegate.__init__(self)
self.device = device
def handleNotification(self, hnd, data):
global slide1
if hnd == self.device._char_auth.getHandle():
if data[:3] == b'\x10\x01\x01':
self.device._req_rdn()
elif data[:3] == b'\x10\x01\x04':
self.device.state = AUTH_STATES.KEY_SENDING_FAILED
elif data[:3] == b'\x10\x02\x01':
# 16 bytes
random_nr = data[3:]
self.device._send_enc_rdn(random_nr)
elif data[:3] == b'\x10\x02\x04':
self.device.state = AUTH_STATES.REQUEST_RN_ERROR
elif data[:3] == b'\x10\x03\x01':
self.device.state = AUTH_STATES.AUTH_OK
elif data[:3] == b'\x10\x03\x04':
self.device.status = AUTH_STATES.ENCRIPTION_KEY_FAILED
self.device._send_key()
else:
self.device.state = AUTH_STATES.AUTH_FAILED
# elif hnd == self.device._char_heart_measure.getHandle():
# self.device.queue.put((QUEUE_TYPES.HEART, data))
elif hnd ==0x4d: #for call mute and cut
mute_reject = str(data.encode('hex'))
# print (mute_reject) # prints data
if mute_reject== '09':
print "Mute"
elif mute_reject == '07':
keyboard.press(Key.left)
keyboard.release(Key.left)
elif hnd == 0x35: # For Acceleration data i think its actually gyroscope -VR
if len(data) == 20 and struct.unpack('b', data[0])[0] == 1:
self.device.queue.put((QUEUE_TYPES.RAW_ACCEL, data))
print "Hello"
elif hnd == 0x38:
# Not sure about this, need test
if len(data) == 20 and struct.unpack('b', data[0])[0] == 1:
self.device.queue.put(
(QUEUE_TYPES.RAW_ACCEL, data)) # useless - VR
elif len(data) == 16:
slide = str(data.encode('hex')) # 10030101c221000000001e003b001d00 here 3b is count for touch of button, 1d is count for raise to awake
slide = slide.split("00000000")[-1].split("00")[1]
if (slide != slide1):
if len(slide1) > 0:
# keyboard.press(Key.right)
# keyboard.release(Key.right)
self.device.slider_feedback()
print("Change man")
slide1 = slide
# self.device.queue.put((QUEUE_TYPES.RAW_HEART, data))
else:
print("DDDkkk")
elif hnd == 0x46: # for notificaton from mi band 2 to button presentation control
print "Slider here"
else:
self.device._log.error("Unhandled Response " + hex(hnd) + ": " +
str(data.encode("hex")) + " len:" + str(len(data)))
class MiBand3(Peripheral):
_KEY = b'\x01\x23\x45\x67\x89\x01\x22\x23\x34\x45\x56\x67\x78\x89\x90\x02'
_send_key_cmd = struct.pack('<18s', b'\x01\x08' + _KEY)
_send_rnd_cmd = struct.pack('<2s', b'\x02\x08')
_send_enc_key = struct.pack('<2s', b'\x03\x08')
def __init__(self, mac_address, timeout=0.5, debug=False):
FORMAT = '%(asctime)-15s %(name)s (%(levelname)s) > %(message)s'
logging.basicConfig(format=FORMAT)
log_level = logging.WARNING if not debug else logging.DEBUG
self._log = logging.getLogger(self.__class__.__name__)
self._log.setLevel(log_level)
self._log.info('Connecting to ' + mac_address)
Peripheral.__init__(self, mac_address, addrType=ADDR_TYPE_RANDOM)
self._log.info('Connected')
self.timeout = timeout
self.mac_address = mac_address
self.state = None
self.queue = Queue()
self.heart_measure_callback = None
self.heart_raw_callback = None
self.accel_raw_callback = None
self.svc_1 = self.getServiceByUUID(UUIDS.SERVICE_MIBAND1)
self.svc_2 = self.getServiceByUUID(UUIDS.SERVICE_MIBAND2)
self._char_auth = self.svc_2.getCharacteristics(
UUIDS.CHARACTERISTIC_AUTH)[0]
self._desc_auth = self._char_auth.getDescriptors(
forUUID=UUIDS.NOTIFICATION_DESCRIPTOR)[0]
self._char_sensor_measure = self.svc_1.getCharacteristics(
UUIDS.CHARACTERISTIC_SENSOR_MEASURE)[0]
self._char_sensor_ctrl = self.svc_1.getCharacteristics(
UUIDS.CHARACTERISTIC_SENSOR_CONTROL)[0]
self._stop_getting_real_time = Event()
# Enable auth service notifications on startup
self._auth_notif(True)
# Let band to settle
self.waitForNotifications(0.1)
# Auth helpers ######################################################################
def _auth_notif(self, enabled):
if enabled:
self._log.info("Enabling Auth Service notifications status...")
self._desc_auth.write(b"\x01\x00", True)
elif not enabled:
self._log.info("Disabling Auth Service notifications status...")
self._desc_auth.write(b"\x00\x00", True)
else:
self._log.error(
"Something went wrong while changing the Auth Service notifications status...")
def _encrypt(self, message):
aes = AES.new(self._KEY, AES.MODE_ECB)
return aes.encrypt(message)
def _send_key(self):
self._log.info("Sending Key...")
self._char_auth.write(self._send_key_cmd)
self.waitForNotifications(self.timeout)
def _req_rdn(self):
self._log.info("Requesting random number...")
self._char_auth.write(self._send_rnd_cmd)
self.waitForNotifications(self.timeout)
def _send_enc_rdn(self, data):
self._log.info("Sending encrypted random number")
cmd = self._send_enc_key + self._encrypt(data)
send_cmd = struct.pack('<18s', cmd)
self._char_auth.write(send_cmd)
self.waitForNotifications(self.timeout)
# Parse helpers ###################################################################
def _parse_raw_accel(self, bytes):
res = []
for i in xrange(3):
g = struct.unpack('hhh', bytes[2 + i * 6:8 + i * 6])
res.append({'x': g[0], 'y': g[1], 'wtf': g[2]})
return res
def _parse_raw_heart(self, bytes):
res = struct.unpack('HHHHHHH', bytes[2:])
return res
def _parse_date(self, bytes):
year = struct.unpack('h', bytes[0:2])[0] if len(bytes) >= 2 else None
month = struct.unpack('b', bytes[2])[0] if len(bytes) >= 3 else None
day = struct.unpack('b', bytes[3])[0] if len(bytes) >= 4 else None
hours = struct.unpack('b', bytes[4])[0] if len(bytes) >= 5 else None
minutes = struct.unpack('b', bytes[5])[0] if len(bytes) >= 6 else None
seconds = struct.unpack('b', bytes[6])[0] if len(bytes) >= 7 else None
day_of_week = struct.unpack('b', bytes[7])[
0] if len(bytes) >= 8 else None
fractions256 = struct.unpack('b', bytes[8])[
0] if len(bytes) >= 9 else None
return {"date": datetime(*(year, month, day, hours, minutes, seconds)), "day_of_week": day_of_week, "fractions256": fractions256}
def _parse_battery_response(self, bytes):
level = struct.unpack('b', bytes[1])[0] if len(bytes) >= 2 else None
last_level = struct.unpack('b', bytes[19])[
0] if len(bytes) >= 20 else None
status = 'normal' if struct.unpack(
'b', bytes[2])[0] == 0 else "charging"
datetime_last_charge = self._parse_date(bytes[11:18])
datetime_last_off = self._parse_date(bytes[3:10])
res = {
"status": status,
"level": level,
"last_level": last_level,
"last_charge": datetime_last_charge,
"last_off": datetime_last_off
}
return res
# Queue ###################################################################
def _get_from_queue(self, _type):
try:
res = self.queue.get(False)
except Empty:
return None
if res[0] != _type:
self.queue.put(res)
return None
return res[1]
# API ####################################################################
def initialize(self):
self.setDelegate(AuthenticationDelegate(self))
self._send_key()
while True:
self.waitForNotifications(0.1)
if self.state == AUTH_STATES.AUTH_OK:
self._log.info('Initialized')
self._auth_notif(False)
return True
elif self.state is None:
continue
self._log.error(self.state)
return False
def authenticate(self):
self.setDelegate(AuthenticationDelegate(self))
self._req_rdn()
while True:
self.waitForNotifications(0.1)
if self.state == AUTH_STATES.AUTH_OK:
self._log.info('Authenticated')
return True
elif self.state is None:
continue
self._log.error(self.state)
return False
def is_realtime_stopped(self):
return self._stop_getting_real_time.is_set()
def _parse_queue(self):
while True:
try:
res = self.queue.get(False)
_type = res[0]
if self.accel_raw_callback and _type == QUEUE_TYPES.RAW_ACCEL:
self.accel_raw_callback(self._parse_raw_accel(res[1]))
except Empty as err:
print(err)
break
def start_raw_data_realtime(self, accel_raw_callback=None, duration=None):
if accel_raw_callback:
self.accel_raw_callback = accel_raw_callback
char_sensor_desc = self._char_sensor_measure.getDescriptors(
forUUID=UUIDS.NOTIFICATION_DESCRIPTOR)[0]
self._log.info("Enabling accel raw data notification")
self._char_sensor_ctrl.write(b'\x01\x01\x19')
self._log.info("Start getting sensor data")
self._char_sensor_ctrl.write(b'\x02')
self._log.info("Data written to descrip.")
char_sensor_desc.write(b'\x01\x00')
t = time.time()
while not self.is_realtime_stopped():
self.waitForNotifications(0.5)
self._parse_queue()
# send ping request every 60 sec
if duration and (time.time() - t) > duration:
print "Executed"
# stop getting notifications
char_sensor_desc.write(b'\x00\x00')
self._char_sensor_ctrl.write(b'\x03') # stopping
break
if (time.time() - t) > 60:
self._char_sensor_ctrl.write(b'\x01\x01\x19')
self._char_sensor_ctrl.write(b'\x02')
t = time.time()
def get_battery_info(self):
char = self.svc_1.getCharacteristics(UUIDS.CHARACTERISTIC_BATTERY)[0]
return self._parse_battery_response(char.read())
def get_current_time(self):
char = self.svc_1.getCharacteristics(
UUIDS.CHARACTERISTIC_CURRENT_TIME)[0]
return self._parse_date(char.read()[0:9])
def get_revision(self):
svc = self.getServiceByUUID(UUIDS.SERVICE_DEVICE_INFO)
char = svc.getCharacteristics(UUIDS.CHARACTERISTIC_REVISION)[0]
data = char.read()
return data
def get_hrdw_revision(self):
svc = self.getServiceByUUID(UUIDS.SERVICE_DEVICE_INFO)
char = svc.getCharacteristics(UUIDS.CHARACTERISTIC_HRDW_REVISION)[0]
data = char.read()
return data
def set_encoding(self, encoding="en_US"):
char = self.svc_1.getCharacteristics(
UUIDS.CHARACTERISTIC_CONFIGURATION)[0]
print(str(char))
packet = struct.pack('5s', encoding)
packet = b'\x06\x17\x00' + packet
return char.write(packet)
def get_serial(self):
svc = self.getServiceByUUID(UUIDS.SERVICE_DEVICE_INFO)
char = svc.getCharacteristics(UUIDS.CHARACTERISTIC_SERIAL)[0]
data = char.read()
serial = struct.unpack(
'12s', data[-12:])[0] if len(data) == 12 else None
return serial
def get_steps(self):
char = self.svc_1.getCharacteristics(UUIDS.CHARACTERISTIC_STEPS)[0]
a = char.read()
steps = struct.unpack('h', a[1:3])[0] if len(a) >= 3 else None
meters = struct.unpack('h', a[5:7])[0] if len(a) >= 7 else None
fat_gramms = struct.unpack('h', a[2:4])[0] if len(a) >= 4 else None
# why only 1 byte??
callories = struct.unpack('b', a[9])[0] if len(a) >= 10 else None
return {
"steps": steps,
"meters": meters,
"fat_gramms": fat_gramms,
"callories": callories
}
def send_alert(self, _type):
svc = self.getServiceByUUID(UUIDS.SERVICE_ALERT)
char = svc.getCharacteristics(UUIDS.CHARACTERISTIC_ALERT)[0]
char.write(_type)
def left_turn(self):
base_value = '\x05\x01'
turn1 = ("Left Turn!")
svc = self.getServiceByUUID(UUIDS.SERVICE_ALERT_NOTIFICATION)
char = svc.getCharacteristics(UUIDS.CHARACTERISTIC_CUSTOM_ALERT)[0]
char.write(base_value+turn1, withResponse=True)
def right_turn(self):
base_value = '\x05\x01'
turn2 = ("Right Turn!")
svc = self.getServiceByUUID(UUIDS.SERVICE_ALERT_NOTIFICATION)
char = svc.getCharacteristics(UUIDS.CHARACTERISTIC_CUSTOM_ALERT)[0]
char.write(base_value+turn2, withResponse=True)
def send_custom_alert(self, type):
if type == 5:
base_value = '\x05\x01'
elif type == 4:
base_value = '\x04\x01'
elif type == 3:
base_value = '\x03\x01'
phone = input('Sender Name or Caller ID')
svc = self.getServiceByUUID(UUIDS.SERVICE_ALERT_NOTIFICATION)
char = svc.getCharacteristics(UUIDS.CHARACTERISTIC_CUSTOM_ALERT)[0]
char.write(base_value+phone, withResponse=True)
def slider_feedback(self, text="Next"):
svc = self.getServiceByUUID(UUIDS.SERVICE_ALERT_NOTIFICATION)
char = svc.getCharacteristics(UUIDS.CHARACTERISTIC_CUSTOM_ALERT)[0]
char.write('\x00\x01'+text, withResponse=True)
def change_date(self):
print('Change date and time')
svc = self.getServiceByUUID(UUIDS.SERVICE_MIBAND1)
char = svc.getCharacteristics(UUIDS.CHARACTERISTIC_CURRENT_TIME)[0]
date = input('Enter the date in dd-mm-yyyy format\n')
time = input('Enter the time in HH:MM:SS format\n')
#
day = int(date[:2])
month = int(date[3:5])
year = int(date[6:10])
fraction = year / 256
rem = year % 256
#
hour = int(time[:2])
minute = int(time[3:5])
seconds = int(time[6:])
#
write_val = format(rem, '#04x') + format(fraction, '#04x') + format(month, '#04x') + format(day, '#04x') + format(hour, '#04x') + \
format(minute, '#04x') + format(seconds, '#04x') + format(5,
'#04x') + format(0, '#04x') + format(0, '#04x') + '0x16'
write_val = write_val.replace('0x', '\\x')
print(write_val)
char.write(write_val, withResponse=True)
input('Date Changed, press any key to continue')
def dfuUpdate(self, fileName):
print('Update Firmware/Resource')
svc = self.getServiceByUUID(UUIDS.SERVICE_DFU_FIRMWARE)
char = svc.getCharacteristics(UUIDS.CHARACTERISTIC_DFU_FIRMWARE)[0]
extension = os.path.splitext(fileName)[1][1:]
fileSize = os.path.getsize(fileName)
# calculating crc checksum of firmware
# crc16
crc = 0xFFFF
with open(fileName) as f:
while True:
c = f.read(1)
if not c:
break
cInt = int(c.encode('hex'), 16) # converting hex to int
# now calculate crc
crc = ((crc >> 8) | (crc << 8)) & 0xFFFF
crc ^= (cInt & 0xff)
crc ^= ((crc & 0xff) >> 4)
crc ^= (crc << 12) & 0xFFFF
crc ^= ((crc & 0xFF) << 5) & 0xFFFFFF
crc &= 0xFFFF
print('CRC Value is-->', crc)
input('Press Enter to Continue')
if extension.lower() == "res":
# file size hex value is
char.write('\x01' + struct.pack("<i", fileSize)
[:-1] + '\x02', withResponse=True)
elif extension.lower() == "fw":
char.write('\x01' + struct.pack("<i", fileSize)
[:-1], withResponse=True)
char.write("\x03", withResponse=True)
char1 = svc.getCharacteristics(
UUIDS.CHARACTERISTIC_DFU_FIRMWARE_WRITE)[0]
with open(fileName) as f:
while True:
c = f.read(20) # takes 20 bytes :D
if not c:
print("Update Over")
break
print('Writing Resource', c.encode('hex'))
char1.write(c)
# after update is done send these values
char.write(b'\x00', withResponse=True)
self.waitForNotifications(0.5)
print('CheckSum is --> ', hex(crc & 0xFF), hex((crc >> 8) & 0xFF))
checkSum = b'\x04' + chr(crc & 0xFF) + chr((crc >> 8) & 0xFF)
char.write(checkSum, withResponse=True)
if extension.lower() == "fw":
self.waitForNotifications(0.5)
char.write('\x05', withResponse=True)
print('Update Complete')
input('Press Enter to Continue')
def start_get_previews_data(self, start_timestamp):
self._auth_previews_data_notif(True)
self.waitForNotifications(0.1)
print("Trigger activity communication")
year = struct.pack("<H", start_timestamp.year)
month = struct.pack("<H", start_timestamp.month)[0]
day = struct.pack("<H", start_timestamp.day)[0]
hour = struct.pack("<H", start_timestamp.hour)[0]
minute = struct.pack("<H", start_timestamp.minute)[0]
ts = year + month + day + hour + minute
trigger = b'\x01\x01' + ts + b'\x00\x08'
self._char_fetch.write(trigger, False)
self.active = True
def subscribeNotifications(self):
setup_data = b'\x01\x00'
notifys = self.svc_1.getCharacteristics(
UUIDS.CHARACTERISTIC_DEVICEEVENT)[0]
ccc_desc = notifys.getDescriptors(forUUID=0x2902)[0]
ccc_desc.write(setup_data)
return "Done"
def change_slide(self):
self.button_chars = self.svc_1.getCharacteristics(
UUIDS.CHARACTERISTIC_CONFIGURATION)[0]
notify_setup_data = b'\x03\x00'
ccc_desc = self.button_chars.getDescriptors(forUUID=0x2902)[0]
ccc_desc.write(notify_setup_data)