312 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			Python
		
	
	
	
			
		
		
	
	
			312 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			Python
		
	
	
	
import logging
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import json
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import time
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from threading import Thread
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import traceback
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import uuid
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import requests
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from requests.exceptions import RequestException
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from django.conf import settings
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from rest_framework.exceptions import APIException, ParseError
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from apps.third.errors import DH_REQUEST_ERROR
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from apps.third.models import Tlog
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from apps.utils.my_rsa import encrypt_data
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from apps.utils.tools import convert_to_base64, print_roundtrip
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from django.utils.timezone import now
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from apps.third.tapis import dhapis
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from apps.utils.tools import singleton
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from django.core.cache import cache
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requests.packages.urllib3.disable_warnings()
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myLogger = logging.getLogger('log')
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@singleton
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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):
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        self.dahua_enabled = getattr(settings, 'DAHUA_ENABLED', False)
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        if  self.dahua_enabled:
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            self.dahua_enabled = True
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            self.client_id = settings.DAHUA_CLIENTID
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            self.client_secret = settings.DAHUA_SECRET
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            self.headers = {"Connection": "close"}
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            self.isGetingToken = False
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            self.log = {}
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            # self._get_token()
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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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        is_ok, res = self.request(
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            **dhapis['token_login'], params=params, raise_exception=False, timeout=10)
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        if is_ok == 'success':
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            cache.set('dh_token', res['access_token'], timeout=None)
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        self.isGetingToken = False
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    def request(self, url: str, method: str, params=dict(), json=dict(), timeout=120,
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                file_path_rela=None, raise_exception=True):
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        if not self.dahua_enabled:
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            raise ParseError('大华对接未启用')
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        self.headers['Authorization'] = 'bearer ' + cache.get('dh_token', '')
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        self.headers['User-Id'] = '1'
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        self.log = {"requested_at": now(), "id": uuid.uuid4(), "path": url, "method": method,
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                    "params": params, "body": json, "target": "dahua", "result": 10,  "headers": self.headers}
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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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        if params:
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            url = url.format(**params)
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            self.log.update({"path": url})
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        try:
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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,
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                                          timeout=timeout, files=files, verify=False)
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            # if settings.DEBUG:
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            #     print_roundtrip(r)
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            ret = r.text
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            if 300 > r.status_code >= 200:
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                ret = r.json()
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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:' + \
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                        '{}|{}{}{}'.format(str(ret['code']), ret.get('errMsg', ''),
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                                           ret.get('desc', ''), str(ret.get('data', '')))
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                    err_detail = dict(
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                        detail=detail, code='dh_'+str(ret['code']))
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                    self.handle_log(result='fail', response=ret)
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                    if raise_exception:
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                        raise ParseError(**err_detail)
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                    return 'fail', err_detail
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                # self.handle_log(result='success', response=ret)  # 成功的日志就不记录了
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                return 'success', ret['data'] if 'data' in ret else None
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            else:
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                self.handle_log(result='error', response=ret)
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        except RequestException:
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            self.handle_log(result='error', errors=traceback.format_exc())
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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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    def _get_response_ms(self):
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        """
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        Get the duration of the request response cycle is milliseconds.
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        In case of negative duration 0 is returned.
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        """
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        response_timedelta = now() - self.log["requested_at"]
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        response_ms = int(response_timedelta.total_seconds() * 1000)
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        return max(response_ms, 0)
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    def handle_log(self, result, response=None, errors=None):
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        self.log.update({
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            "result": result,
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            "response": response,
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            "response_ms": self._get_response_ms(),
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            "errors": errors
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        })
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        Tlog(**self.log).save()
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    def get_full_pic(self, path: str):
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        """返回完整访问地址
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        """
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        return '{}/evo-apigw/evo-oss/{}?token={}'.format(settings.DAHUA_BASE_URL, path, cache.get('dh_token', ''))
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    def snap(self, code: str, raise_exception:bool):
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        """摄像头实时截图
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        Args:
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            code (str): 视频通道编号
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        返回完整访问地址
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        """
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        json_data = {
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            "deviceCode": "1000093",
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            "operation": "generalJsonTransport"
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        }
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        if '$' in code:
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            d_code_list = code.split('$')
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            d_code = d_code_list[0]
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            num = d_code_list[-1]
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            json_data['deviceCode'] = d_code
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            json_data['params'] = '{\"method\":\"dev.snap\",\"id\":123,\"params\":{\"DevID\":\"' + \
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                str(d_code) + '\",\"DevChannel\":' + str(num) + \
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                ',\"PicNum\":1,\"SnapType\":1,\"CmdSrc\":0}}'
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        is_ok, res = self.request(**dhapis['dev_snap'], json=json_data, raise_exception=raise_exception)
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        if is_ok == 'success':
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            res = json.loads(res)
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            return self.get_full_pic(res['params']['PicInfo'])
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        return None
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    def get_password_token(self):
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        _, res = self.request(**dhapis['oauth_key'])
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        e_pwd = encrypt_data(settings.DAHUA_PASSWORD, res['publicKey'])
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        res['public_key'] = res['publicKey']
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        res['password'] = e_pwd
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        res.update({
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            "grant_type": "password",
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            "username": settings.DAHUA_USERNAME,
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            "client_id": settings.DAHUA_CLIENTID,
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            "client_secret": settings.DAHUA_SECRET,
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        })
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        _, res2 = self.request(**dhapis['oauth_token'], json=res)
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        return res2
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    def face_search(self, path: str):
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        """人像库检索
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        Args:
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            path (str): 图片地址
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        返回识别结果
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        """
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        base64img = convert_to_base64(path)
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        json_data = {
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            "base64Img": base64img,
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            "devType": 1,
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            "deviceCodes": ["1000038"],
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            "groupIds": ["100001"],
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            "searchGroupType": 2,
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            "threshold": "80"
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        }
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        _, res = self.request(**dhapis['face_search'], json=json_data)
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        return res['pageData']
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        # 返回的识别结果是从右往左
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        """
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        "pageData": [
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    {
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      "id": null,
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      "devId": "1000038",
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      "channelId": null,
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      "channelSeq": null,
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      "channelName": null,
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      "faceLibId": "1",
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      "libImgUrl": "6ad010cf-ce45-11ec-9715-e4246c7d1635/20220805/63/dsf_8c2487c1-14a1-11ed-880a-e4246c7d1635_2551349_2624751.jpg",
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      "faceImgUrl": null,
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      "hitImgUrl": null,
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      "identity": "342422199004040175",
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      "name": "曹前明",
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      "sex": "男",
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      "nation": null,
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      "bornYear": null,
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      "age": null,
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      "glasses": null,
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      "fringe": null,
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      "similarity": 99,
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      "recTime": null,
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      "mask": null,
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      "beard": null,
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      "glass": null,
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      "maskStr": null,
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      "beardStr": null,
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      "glassStr": null,
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      "featureStr": "其他 ",
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      "groupName": "内部库1",
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      "groupType": 3,
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      "groupTypeStr": "内部库",
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      "identityType": 1,
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      "identityTypeStr": "身份证",
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      "birthday": null,
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      "searchGroupType": 2,
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      "birthdayStr": "2022-07-14",
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      "deviceName": "ivs服务器",
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      "personCode": "123"
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    },
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    {
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      "id": null,
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      "devId": "1000038",
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      "channelId": null,
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      "channelSeq": null,
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      "channelName": null,
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      "faceLibId": "1",
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      "libImgUrl": "6ad010cf-ce45-11ec-9715-e4246c7d1635/20220805/63/dsf_8c2487c1-14a1-11ed-880a-e4246c7d1635_2624751_2701750.jpg",
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      "faceImgUrl": null,
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      "hitImgUrl": null,
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      "identity": "371324199502156548",
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      "name": "石静",
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      "sex": "女",
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      "nation": null,
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      "bornYear": null,
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      "age": null,
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      "glasses": null,
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      "fringe": null,
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      "similarity": 96,
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      "recTime": null,
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      "mask": null,
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      "beard": null,
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      "glass": null,
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      "maskStr": null,
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      "beardStr": null,
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      "glassStr": null,
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      "featureStr": "其他 ",
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      "groupName": "内部库1",
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      "groupType": 3,
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      "groupTypeStr": "内部库",
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      "identityType": 1,
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      "identityTypeStr": "身份证",
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      "birthday": null,
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      "searchGroupType": 2,
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      "birthdayStr": "2022-06-24",
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      "deviceName": "ivs服务器",
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      "personCode": "shijing"
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    }
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  ]
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        """
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    def face_bind(self):
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        # 人像绑定到主库
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        json_data = {
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            "deptId": 1,
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            "groupIdList": [settings.DAHUA_FACEGROUPID_1],
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            "cascade": True
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        }
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        self.request(**dhapis['face_bind'], json=json_data)
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    def face_deploy(self, minSim: int = 90):
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        params = {
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            "id": "001001001",
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            "checkStat": "1",
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            "type": "001;00_1;1",
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            "capability": "1_00000000000000000000000100000000",
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            "curCount": "0",
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            "isDomain": 0
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        }
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        _, res = self.request(**dhapis['dev_tree'], params=params)
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        for i in json.loads(res):
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            json_data = {
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                "minSimilarity": str(minSim),
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                "dpMinSimilarity": minSim,
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                "surveyType": ["1"],
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                "groups": str(settings.DAHUA_FACEGROUPID_1),
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                "chnId": i['id']
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            }
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            self.request(**dhapis['face_deploy'], json=json_data)
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    def get_rtsp(self, code: str):
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        """获取rtsp流
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        Args:
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            code (str): 通道编号
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        """
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        is_ok, res = self.request(**dhapis['video_rtsp'], json={"data": {"channelId": code,"dataType": "1","streamType": "1"}})
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        if is_ok == 'success':
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            if '|' in res['url']:
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                urls = res['url'].split('|')
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                for i in urls:
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                    if settings.DAHUA_HOST in i:
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                        return f"{i}?token={res['token']}"
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            else:
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                return f"{res['url']}?token={res['token']}"
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        return None
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dhClient = DhClient()
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