104 lines
3.9 KiB
Python
Executable File
104 lines
3.9 KiB
Python
Executable File
"""Class to perform requests to Tuya Cloud APIs."""
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import functools
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import hashlib
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import hmac
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import json
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import requests
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import sys
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import time
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# Signature algorithm.
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def calc_sign(msg,key):
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sign = hmac.new(msg=bytes(msg, 'latin-1'),key = bytes(key, 'latin-1'), digestmod = hashlib.sha256).hexdigest().upper()
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return sign
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class TuyaCloudApi:
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"""Class to send API calls."""
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def __init__(self, hass, region_code, client_id, secret, user_id):
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"""Initialize the class."""
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self._hass = hass
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self._base_url = f'https://openapi.tuya{region_code}.com'
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self._access_token = ""
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self._client_id = client_id
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self._secret = secret
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self._user_id = user_id
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def generate_payload(self, method, t, url, headers, body = None):
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payload = self._client_id + self._access_token + t
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payload += (method + '\n' +
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hashlib.sha256(bytes((body or "").encode('utf-8'))).hexdigest() + '\n' + # Content-SHA256
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''.join(
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['%s:%s\n'%(key, headers[key]) # Headers
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for key in headers.get("Signature-Headers", "").split(":")
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if key in headers]
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) +
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'\n/' + url.split('//', 1)[-1].split('/', 1)[-1]) # Url (extracted from 'url')
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# print("PAYLOAD: {}".format(payload))
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return payload
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async def async_make_request(self, method, url, body=None, headers={}):
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"""Perform requests."""
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t = str(int(time.time()*1000))
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payload = self.generate_payload(method, t, url, headers, body)
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default_par={
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'client_id':self._client_id,
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'access_token':self._access_token,
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'sign':calc_sign(payload, self._secret),
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't':t,
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'sign_method':'HMAC-SHA256',
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}
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full_url = self._base_url + url
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print("\n" + method + ": [{}]".format(full_url))
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if method == "GET":
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func = functools.partial(requests.get, full_url, headers=dict(default_par,**headers))
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elif method == "POST":
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func = functools.partial(requests.post, full_url, headers=dict(default_par,**headers), data=json.dumps(body))
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print("BODY: [{}]".format(body))
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elif method == "PUT":
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func = functools.partial(requests.put, full_url, headers=dict(default_par,**headers), data=json.dumps(body))
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r = await self._hass.async_add_executor_job(func)
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#r = json.dumps(r.json(), indent=2, ensure_ascii=False) # Beautify the request result format for easy printing and viewing
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return r
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async def async_get_access_token(self):
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"""Obtain a valid access token."""
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r = await self.async_make_request("GET", f'/v1.0/token?grant_type=1')
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if not r.ok:
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print("Request failed, status {}".format(r.status))
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return "Request failed, status " + str(r.status)
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r_json = r.json()
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if not r_json['success']:
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print("Request failed, reply is {}".format(json.dumps(r_json, indent=2, ensure_ascii=False)))
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return f"Error {r_json['code']}: {r_json['msg']}"
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print(r.json())
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self._access_token = r.json()['result']['access_token']
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print("GET_ACCESS_TOKEN: {}".format(self._access_token))
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return "ok"
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async def async_get_devices_list(self):
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"""Obtain the list of devices associated to a user."""
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r = await self.async_make_request("GET", url=f'/v1.0/users/{self._user_id}/devices')
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if not r.ok:
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print("Request failed, status {}".format(r.status))
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return None
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r_json = r.json()
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if not r_json['success']:
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print("Request failed, reply is {}".format(json.dumps(r_json, indent=2, ensure_ascii=False)))
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return None
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return r
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