def _on_get_data(self, data: list):
"""
传感器数据回调函数
:param data: 数据
:return:
"""
# 每一次回调，每种类型的数据最多只取一次，防止出现抖动
acc_data_found = False
gyro_data_found = False
ang_data_found = False
for i in range(len(data) - 11):
if not (data[i] == 0x55 and data[i + 1] & 0x50 == 0x50):
continue
if data[i] == 0x55 and data[i + 1] == 0x51 and sum(
data[i:i + 10]) & 255 == data[i + 10]:
axl, axh, ayl, ayh, azl, azh, *_ = data[i + 2:i + 11]
sensor_data = [
get_current_timestamp(),
(np.short((axh << 8) | axl)) / 32768 * 16 * 9.8,
(np.short((ayh << 8) | ayl)) / 32768 * 16 * 9.8,
(np.short((azh << 8) | azl)) / 32768 * 16 * 9.8
]
if not acc_data_found:
acc_data_found = True
self.acc_to_display.append(sensor_data)
self.acc_to_detect_cycle.append(sensor_data)
if data[i] == 0x55 and data[i + 1] == 0x52 and sum(
data[i:i + 10]) & 255 == data[i + 10]:
wxl, wxh, wyl, wyh, wzl, wzh, *_ = data[i + 2:i + 11]
sensor_data = [
get_current_timestamp(), (np.short(wxh << 8) | wxl) /
32768 * 2000 * (math.pi / 180),
(np.short(wyh << 8) | wyl) / 32768 * 2000 *
(math.pi / 180),
(np.short(wzh << 8) | wzl) / 32768 * 2000 * (math.pi / 180)
]
if not gyro_data_found:
gyro_data_found = True
self.gyro_to_display.append(sensor_data)
self.gyro_to_detect_cycle.append(sensor_data)
if data[i] == 0x55 and data[i + 1] == 0x53 and sum(
data[i:i + 10]) & 255 == data[i + 10]:
rol, roh, pil, pih, yal, yah, *_ = data[i + 2:i + 11]
sensor_data = [
get_current_timestamp(),
(np.short(roh << 8 | rol) / 32768 * 180),
(np.short(pih << 8 | pil) / 32768 * 180),
(np.short(yah << 8 | yal) / 32768 * 180)
]
if not ang_data_found:
ang_data_found = True
self.ang_to_display.append(sensor_data)
self.ang_to_detect_cycle.append(sensor_data)
self.fix_data_count()
def get_data_set_as_table(catalog_index=settings.DEFAULT_CATALOG_INDEX, skip_rows=0, sep=';', return_index=False, data=None, description=None):
if (data is None) and (description is None):
data, description = get_data_set(catalog_index, skip_rows, sep)
else:
data, description = data, description
data_html = data.to_html()
data_html = util_design.get_custom_table_header() + data_html[82:]
if return_index:
return data_html, description, get_current_timestamp(), list(data)
else:
return data_html, description, get_current_timestamp()
def make_question(title, message, image=""):
result = {
'id': generate_id(persistence.get_ids('question')),
'submission_time': util.decode_time_for_human(util.get_current_timestamp()),
'view_number': 0,
'vote_number': 0,
'title': title,
'message': message,
'image': image,
}
return result
def firewall_simulator():
while True:
timestamp = util.get_current_timestamp()
status = "BLOCK"
interface = interfaces[randint(0, len(interfaces) - 1)]
source_ip = firewall_ips[randint(0, len(firewall_ips) - 1)]
destination_ip = my_ip
log = " ".join(
[timestamp, status, interface, source_ip, destination_ip])
util.save_firewall_log(log)
print(log)
sleep(2)
def __init__(self, sensor_data: Union[int, None] = None):
"""
初始化
:param sensor_data: 数据类型，0 - 9 表示使用data0中的数据进行模拟，"usb"表示usb数据，"socket"表示使用socket
"""
# 传感器，用于实时数据
self.sensor = None
# 模拟数据
self.sensor_data = sensor_data
# 最多保存的数据点的个数
self.ACC_POINT_COUNT = 400
self.GYRO_POINT_COUNT = 400
self.ANG_POINT_COUNT = 400
# 原始数据，显示使用
self.acc_to_display = []
self.gyro_to_display = []
self.ang_to_display = []
# 用于检测步态的数据
self.acc_to_detect_cycle = []
self.gyro_to_detect_cycle = []
self.ang_to_detect_cycle = []
self.conn = None # socket连接
logger.info("是否使用实时数据：{0}".format(bool(sensor_data is None)))
if type(sensor_data) == int and 0 <= sensor_data <= 9:
assert sensor_data is None or 0 <= int(sensor_data) <= 9, "数据错误"
self.last_data_index = 0 # 上一次载入的数据的index
self.last_data_timestamp = None # 传感器开始时间，用于模拟数据的时候读取数据
self.acc_data_lines = None # 模拟数据
self.gyro_data_lines = None # 模拟数据
logger.info("载入data0加速度数据")
self.acc_data_lines = load_data0_data(
os.path.join(DATA_DIR, "data0",
"accData{0}.txt".format(sensor_data)))
logger.info("载入data0陀螺仪数据")
self.gyro_data_lines = load_data0_data(
os.path.join(DATA_DIR, "data0",
"gyrData{0}.txt".format(sensor_data)))
self.ang_data_lines = load_data0_data(
os.path.join(DATA_DIR, "data0",
"angData{0}.txt".format(sensor_data)))
self.last_data_timestamp = get_current_timestamp()
elif sensor_data == "usb":
self.set_handler()
elif sensor_data == "socket":
logger.info("使用socket数据")
thread = threading.Thread(target=self._wait_socket_data)
thread.start()
else:
raise Exception("错误的数据类型")
def make_answer(message, image, question_id, answer_id=None):
if answer_id is None:
id_ = generate_id(persistence.get_ids("answer"))
else:
id_ = answer_id
result = {
'id': id_,
'submission_time': util.decode_time_for_human(util.get_current_timestamp()),
'vote_number': 0,
'message': message,
'question_id': question_id,
'image': image
}
return result
def make_comment(message, question_id, comment_id=None):
if comment_id is None:
id_ = generate_id(persistence.get_ids("comment"))
else:
id_ = comment_id
result = {
'id': id_,
'submission_time': util.decode_time_for_human(util.get_current_timestamp()),
'edited_count': 0,
'message': message,
'question_id': question_id,
'answer_id': 0,
}
return result
def edit_question(cursor, dictionary):
cursor.execute("""
UPDATE question
SET submission_time = '{submission_time}',
view_number = {view_number},
vote_number = {vote_number},
title = '{title}',
message = '{message}',
image = '{image}'
WHERE id = {id};
""".format(submission_time=util.decode_time_for_human(util.get_current_timestamp()),
view_number=dictionary['view_number'],
vote_number=dictionary['vote_number'],
title=dictionary['title'],
message=dictionary['message'],
image=dictionary['image'],
id=dictionary['id']
))
def _wait_socket_data(self):
"""
起一个socket server等数据来
:return:
"""
def get_headers(data):
"""将请求头转换为字典"""
header_dict = {}
data = str(data, encoding="utf-8")
header, body = data.split("\r\n\r\n", 1)
header_list = header.split("\r\n")
for i in range(0, len(header_list)):
if i == 0:
if len(header_list[0].split(" ")) == 3:
header_dict['method'], header_dict['url'], header_dict[
'protocol'] = header_list[0].split(" ")
else:
k, v = header_list[i].split(":", 1)
header_dict[k] = v.strip()
return header_dict
def get_data(info):
logger.info(len(self.acc_to_display))
payload_len = info[1] & 127
if payload_len == 126:
extend_payload_len = info[2:4]
mask = info[4:8]
decoded = info[8:]
elif payload_len == 127:
extend_payload_len = info[2:10]
mask = info[10:14]
decoded = info[14:]
else:
extend_payload_len = None
mask = info[2:6]
decoded = info[6:]
bytes_list = bytearray() # 这里我们使用字节将数据全部收集，再去字符串编码，这样不会导致中文乱码
for i in range(len(decoded)):
chunk = decoded[i] ^ mask[i % 4] # 解码方式
bytes_list.append(chunk)
try:
body = str(bytes_list, encoding='utf-8')
except UnicodeDecodeError as err:
logger.exception(err)
return ""
return body
logger.info("等待连接")
sock = socket.socket()
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind(("0.0.0.0", 80))
sock.listen(5)
while True:
# 等待用户连接
self.conn, addr = sock.accept()
logger.info("connect ")
# 获取握手消息，magic string ,sha1加密
# 发送给客户端
# 握手消息
data = self.conn.recv(8096)
headers = get_headers(data)
# 对请求头中的sec-websocket-key进行加密
response_tpl = "HTTP/1.1 101 Switching Protocols\r\n" \
"Upgrade:websocket\r\n" \
"Connection: Upgrade\r\n" \
"Sec-WebSocket-Accept: %s\r\n" \
"WebSocket-Location: ws://%s%s\r\n\r\n"
magic_string = '258EAFA5-E914-47DA-95CA-C5AB0DC85B11'
value = headers['Sec-WebSocket-Key'] + magic_string
ac = base64.b64encode(hashlib.sha1(value.encode('utf-8')).digest())
response_str = response_tpl % (ac.decode('utf-8'), headers['Host'],
headers['url'])
# 响应【握手】信息
self.conn.send(bytes(response_str, encoding='utf-8'))
# 可以进行通信
while True:
data = self.conn.recv(8096)
data = get_data(data)
if data:
logger.info(data)
try:
data = eval(data)
except Exception as err:
logger.exception(err)
continue
if data[0] == "acc":
data = [
get_current_timestamp(), data[1], data[2], data[3]
]
self.acc_to_display.append(data)
self.acc_to_detect_cycle.append(data)
elif data[0] == "gyro":
data = [
get_current_timestamp(), data[1] * (math.pi / 180),
data[2] * (math.pi / 180),
data[3] * (math.pi / 180)
]
self.gyro_to_display.append(data)
self.gyro_to_detect_cycle.append(data)
else:
raise Exception("错误的socket数据")
self.fix_data_count()
