114 lines
4.4 KiB
Python
114 lines
4.4 KiB
Python
from threading import Thread
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import traceback
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import requests
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from apps.utils.errors import DH_REQUEST_ERROR
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from apps.utils.tools import print_roundtrip
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from server import settings
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import json
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import time
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from rest_framework.exceptions import APIException, ParseError
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import os
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requests.packages.urllib3.disable_warnings()
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class DhClient:
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"""
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大华
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"""
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def __init__(self, client_id= settings.DAHUA_CLIENTID
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, client_secret = settings.DAHUA_SECRET) -> None:
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if not settings.DAHUA_ENABLED:
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return None
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self.client_id = client_id
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self.client_secret = client_secret
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self.headers = {}
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self.isGetingToken = False
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self.isRuning = True
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self.t = None # 线程
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self.setup()
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def _get_token_loop(self):
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while self.isRuning:
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params = {
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'grant_type': 'client_credentials',
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'client_id': self.client_id,
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'client_secret': self.client_secret
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}
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r = requests.post(params=params, url=settings.DAHUA_BASE_URL + '/evo-apigw/evo-oauth/oauth/token', verify=False)
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ret = r.json()
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if ret['success']:
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self.headers['Authorization'] = 'bearer ' + ret['data']['access_token']
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self.headers['User-Id'] = '1'
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time.sleep(3600)
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def get_token(self):
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self.isGetingToken = True
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params = {
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'grant_type': 'client_credentials',
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'client_id': self.client_id,
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'client_secret': self.client_secret
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}
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r = requests.post(params=params, url=settings.DAHUA_BASE_URL + '/evo-apigw/evo-oauth/oauth/token', verify=False)
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ret = r.json()
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if ret['success']:
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self.headers['Authorization'] = 'bearer ' + ret['data']['access_token']
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self.headers['User-Id'] = '1'
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self.isGetingToken = False
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def setup(self):
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t = Thread(target=self._get_token_loop, args=(), daemon=True)
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t.start()
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def __del__(self):
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"""
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自定义销毁
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"""
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self.isRuning = False
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# self.t.join()
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def request(self, url:str, method:str, params=dict(), json=dict(), timeout=10, file_path_rela=None, raise_exception=True):
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if self.isGetingToken:
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req_num = 0
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while True:
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time.sleep(0.5)
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if not self.isGetingToken:
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self.request(url, method, params, json, timeout, file_path_rela, raise_exception)
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req_num = req_num + 1
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if req_num > 4:
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break
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else:
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files = None
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if file_path_rela: # 相对路径
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files = {'file': open(settings.BASE_DIR + file_path_rela, 'rb')}
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try:
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if params:
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url = url.format(**params)
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r = getattr(requests, method)('{}{}'.format(settings.DAHUA_BASE_URL, url)
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, headers = self.headers, params=params, json=json, timeout=timeout, files=files, verify=False)
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except:
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if raise_exception:
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raise APIException(**DH_REQUEST_ERROR)
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return 'error', DH_REQUEST_ERROR
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# if settings.DEBUG:
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# print_roundtrip(r)
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if r.status_code == 200:
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"""
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请求成功
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"""
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ret = r.json()
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if ret.get('code') == '27001007':
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self.get_token() # 重新获取token
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self.request(url, method, params, json, timeout, file_path_rela, raise_exception)
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else:
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if ret['code'] not in ['0', '100', '00000', '1000', 0, 100, 1000]:
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detail = '大华错误:' + '{}|{}{}{}'.format(str(ret['code']), ret.get('errMsg',''), ret.get('desc', ''), str(ret.get('data', '')))
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err_detail = dict(detail=detail, code='dh_'+str(ret['code']))
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if raise_exception:
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raise ParseError(**err_detail)
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return 'fail', dict(detail=detail, code='dh_'+str(ret['code']))
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return 'success', ret['data'] if 'data' in ret else None
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if raise_exception:
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raise APIException(**DH_REQUEST_ERROR)
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return 'error', DH_REQUEST_ERROR
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dhClient = DhClient() |