factory/apps/utils/dahua.py

99 lines
3.5 KiB
Python

from threading import Thread
import traceback
import requests
from apps.utils.tools import print_roundtrip
from server import settings
import json
import time
requests.packages.urllib3.disable_warnings()
class DhClient:
"""
大华
"""
def __init__(self, client_id= settings.DAHUA_CLIENTID
, client_secret = settings.DAHUA_SECRET) -> None:
self.client_id = client_id
self.client_secret = client_secret
self.headers = {}
self.isGetingToken = False
self.isRuning = True
self.t = None # 线程
self.setup()
def _get_token_loop(self):
while self.isRuning:
params = {
'grant_type': 'client_credentials',
'client_id': self.client_id,
'client_secret': self.client_secret
}
r = requests.post(params=params, url=settings.DAHUA_BASE_URL + '/evo-apigw/evo-oauth/oauth/token', verify=False)
ret = r.json()
if ret['success']:
self.headers['Authorization'] = 'bearer ' + ret['data']['access_token']
self.headers['User-Id'] = '1'
time.sleep(3600)
def get_token(self):
self.isGetingToken = True
params = {
'grant_type': 'client_credentials',
'client_id': self.client_id,
'client_secret': self.client_secret
}
r = requests.post(params=params, url=settings.DAHUA_BASE_URL + '/evo-apigw/evo-oauth/oauth/token', verify=False)
ret = r.json()
if ret['success']:
self.headers['Authorization'] = 'bearer ' + ret['data']['access_token']
self.headers['User-Id'] = '1'
self.isGetingToken = False
def setup(self):
t = Thread(target=self._get_token_loop, args=(), daemon=True)
t.start()
def __del__(self):
"""
自定义销毁
"""
self.isRuning = False
self.t.join()
def request(self, url:str, method:str, params=dict(), json=dict(), timeout=20):
if self.isGetingToken:
req_num = 0
while True:
time.sleep(0.5)
if not self.isGetingToken:
self.request(url, method, params, json, timeout)
req_num = req_num + 1
if req_num > 4:
break
else:
r = getattr(requests, method)('{}{}'.format(settings.DAHUA_BASE_URL, url)
, headers = self.headers, params=params, json=json, verify=False)
if settings.DEBUG:
print_roundtrip(r)
if r.status_code == 200:
"""
请求成功
"""
ret = r.json()
if ret.get('code') == '27001007':
self.get_token() # 重新获取token
self.request(url, method, params, json, timeout) # 重新请求
else:
msg = '{}|{}{}'.format(str(ret['code']), ret.get('errMsg',''), ret.get('desc', ''))
res = dict(success=True, code=200000, msg= msg, data=ret.get('data', None))
if ret['code'] not in ['0', '100', '00000']:
res['success'] = False
res['code'] = 400000
return res
return dict(success=False, code=400901, msg='大华接口访问异常', data=None)
if settings.DAHUA_ENABLED:
dhClient = DhClient()