factory/apps/utils/dahua.py

118 lines
4.4 KiB
Python
Executable File

import time
from threading import Thread
import requests
from django.conf import settings
from rest_framework.exceptions import APIException, ParseError
from apps.utils.errors import DH_REQUEST_ERROR
from apps.utils.tools import print_roundtrip
requests.packages.urllib3.disable_warnings()
class DhClient:
"""
大华
"""
def __init__(self, client_id=settings.DAHUA_CLIENTID,
client_secret=settings.DAHUA_SECRET) -> None:
if not settings.DAHUA_ENABLED:
return 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=10,
file_path_rela=None, raise_exception=True):
if self.isGetingToken:
req_num = 0
while True:
time.sleep(0.5)
if not self.isGetingToken:
self.request(url, method, params, json, timeout, file_path_rela, raise_exception)
req_num = req_num + 1
if req_num > 4:
break
else:
files = None
if file_path_rela: # 相对路径
files = {'file': open(settings.BASE_DIR + file_path_rela, 'rb')}
try:
if params:
url = url.format(**params)
r = getattr(requests, method)('{}{}'.format(settings.DAHUA_BASE_URL, url),
headers=self.headers, params=params, json=json,
timeout=timeout, files=files, verify=False)
except:
if raise_exception:
raise APIException(**DH_REQUEST_ERROR)
return 'error', DH_REQUEST_ERROR
# if settings.DEBUG:
# print_roundtrip(r)
if r.status_code == 200:
ret = r.json()
if ret.get('code') == '27001007':
self.get_token() # 重新获取token
self.request(url, method, params, json, timeout, file_path_rela, raise_exception)
else:
if ret['code'] not in ['0', '100', '00000', '1000', 0, 100, 1000]:
detail = '大华错误:' + \
'{}|{}{}{}'.format(str(ret['code']), ret.get('errMsg', ''),
ret.get('desc', ''), str(ret.get('data', '')))
err_detail = dict(detail=detail, code='dh_'+str(ret['code']))
if raise_exception:
raise ParseError(**err_detail)
return 'fail', dict(detail=detail, code='dh_'+str(ret['code']))
return 'success', ret['data'] if 'data' in ret else None
if raise_exception:
raise APIException(**DH_REQUEST_ERROR)
return 'error', DH_REQUEST_ERROR
dhClient = DhClient()