Novatek-Electro EM-130 HTTP API

em130.py

#!/usr/bin/env python3

import sys
import requests
import hashlib

BASE_URL = "http://192.0.2.0"
PASSWORD = "admin"
MODE_AUTO = "0"
MODE_ON = "1"
MODE_OFF = "2"

session = requests.Session()

def salt():
    response = session.get(BASE_URL + "/api/login", params={"salt": "1"})
    data = response.json()
    if data.get("STATUS") != "OK":
        raise Exception("Salt: STATUS != OK")
    salt_ = data.get("salt")
    if not salt_:
        raise Exception("Salt: No salt")
    return salt_

def login(salt, password):
    hash_ = hashlib.sha1((salt + password.encode().hex() + salt).encode("ascii")).hexdigest()
    response = session.get(BASE_URL + "/api/login", params={"login": hash_})
    data = response.json()
    if data.get("STATUS") != "OK":
        raise Exception("Login: STATUS != OK")

def get():
    response = session.get(BASE_URL + "/api/get", params={"user-ctrl": ""})
    data = response.json()
    if data.get("STATUS") != "OK":
        raise Exception("Get: STATUS != OK")
    return data.get("user-ctrl")

def set(mode):
    response = session.get(BASE_URL + "/api/set", params={"user-ctrl": mode})
    data = response.json()
    if data.get("STATUS") != "OK":
        raise Exception("Set: STATUS != OK")

login(salt(), PASSWORD)
print(get())
set(MODE_AUTO)