ASJServer/Controller/IcloudService/IcloudService.py

# -*- coding: utf-8 -*-
"""
@Author ： peng
@Time ： 2023-6-7 18:26:35
@File ：IcloudMeal.py
"""
from Ansjer.config import LOGGER
import time
import jwt

from django.db.models import Sum, Q
from django.http import HttpResponse
from django.views import View

from Model.models import IcloudUseDetails, IcloudService, VodBucketModel, IcloudStorageRecord, Device_Info
from Object.AWS.AmazonS3Util import AmazonS3Util
from Object.RedisObject import RedisObject
from Object.ResponseObject import ResponseObject
from Object.TokenObject import TokenObject
from Ansjer.config import ACCESS_KEY_ID, SECRET_ACCESS_KEY, REGION_NAME, SERVER_DOMAIN, AWS_ACCESS_KEY_ID, \
    AWS_SECRET_ACCESS_KEY, SERVER_DOMAIN_SSL, OAUTH_ACCESS_TOKEN_SECRET
from Object.m3u8generate import PlaylistGenerator
from Service.VodHlsService import SplitVodHlsObject


class IcloudServiceView(View):
    def get(self, request, *args, **kwargs):
        request.encoding = 'utf-8'
        operation = kwargs.get('operation')
        return self.validation(request.GET, operation, request)

    def post(self, request, *args, **kwargs):
        request.encoding = 'utf-8'
        operation = kwargs.get('operation')
        return self.validation(request.POST, operation, request)

    def validation(self, request_dict, operation, request):
        response = ResponseObject()
        if operation == 'icloudPlay':  # 云盘播放
            return self.icloud_play(request_dict, response)
        else:
            tko = TokenObject(request.META.get('HTTP_AUTHORIZATION'))
            response.lang = tko.lang
            user_id = tko.userID
            if tko.code != 0:
                return response.json(tko.code)
            if operation == 'vodUpload':  # 云存上传云盘
                return self.vod_upload(request_dict, response, user_id)
            elif operation == 'getUploadUrl':  # 获取s3上传地址
                return self.get_upload_url(request_dict, response, user_id)
            elif operation == 'localUpload':  # 本地上传云盘
                return self.local_upload(request_dict, response, user_id)
            elif operation == 'deleteIcloudRecord':  # 删除云盘记录
                return self.delete_icloud_record(request_dict, response, user_id)
            elif operation == 'getIcloudList':  # 获取云盘播放列表
                return self.get_icloud_list(request_dict, response, user_id)
            else:
                return response.json(404)

    @staticmethod
    def vod_upload(request_dict, response, user_id):
        """
        云存上传云盘
        @param request_dict: 请求参数
        @param user_id: 用户id
        @request_dict uid: 设备uid
        @request_dict channel: 设备通道
        @request_dict start_time: 播放时间戳
        @param response: 响应对象
        @return: response
        """
        LOGGER.info('开始云存转移到云盘')
        uid = request_dict.get('uid', None)
        channel = request_dict.get('channel', None)
        time_stamp = request_dict.get('time_stamp', None)
        if not all([uid, channel, time_stamp]):
            return response.json(444, {'error param': 'uid,channel,start_time'})
        device_qs = Device_Info.objects.filter(UID=uid, userID=user_id).values('NickName')
        if not device_qs.exists():
            return response.json(173)
        # 查询是否开通云盘
        use_details_qs = IcloudUseDetails.objects.filter(user_id=user_id).values('id', 'bucket_id', 'use_size')
        if not use_details_qs.exists():
            return response.json(173)
        use_details_id = use_details_qs[0]['id']
        target_bucket_id = use_details_qs[0]['bucket_id']
        use_size = float(use_details_qs[0]['use_size'])
        now_time = int(time.time())
        nickname = device_qs[0]['NickName']
        # 判断云盘是否还有容量
        all_size = IcloudService.objects.filter(Q(use_details_id=use_details_id), Q(use_status=0),
                                                Q(end_time__gt=now_time) | Q(end_time=0)).values(
            'size').aggregate(total_size=Sum('size'))['total_size']
        all_size = all_size * 1024 if all_size else 0
        if use_size > all_size:
            LOGGER.info('{}用户套餐总容量为：{}，已使用容量为：{}'.format(uid, all_size, use_size))
            return response.json(910)
        split_vod_hls_obj = SplitVodHlsObject()
        vod_hls = split_vod_hls_obj.get_vod_hls_data(uid=uid, channel=channel, start_time=time_stamp).values(
            'bucket_id', 'fg', 'sec')
        if not vod_hls.exists():
            LOGGER.info('{}用户查无此云存：{}'.format(uid, time_stamp))
            return response.json(173)
        source_bucket_id = vod_hls[0]['bucket_id']
        fg = int(vod_hls[0]['fg'])
        sec = vod_hls[0]['sec']
        target_bucket_qs = VodBucketModel.objects.filter(id=target_bucket_id).values('bucket')
        if not target_bucket_qs.exists():
            return response.json(173)
        target_bucket_name = target_bucket_qs[0]['bucket']

        source_bucket_qs = VodBucketModel.objects.filter(id=source_bucket_id).values('bucket', 'region', 'mold')
        if not source_bucket_qs.exists():
            return response.json(173)
        bucket_region = source_bucket_qs[0]['region']
        source_bucket_name = source_bucket_qs[0]['bucket']
        mold = source_bucket_qs[0]["mold"]
        ts_list = []
        ts_size = 0
        try:
            s3_obj = AmazonS3Util(
                AWS_ACCESS_KEY_ID[mold],
                AWS_SECRET_ACCESS_KEY[mold],
                bucket_region
            )
            # 获取视频封面
            thumbs_png = '{uid}/vod{channel}/{time}/Thumb.jpeg'.format(uid=uid, channel=channel, time=time_stamp)
            thumbs_png_size = s3_obj.get_object_size(source_bucket_name, thumbs_png)
            if thumbs_png_size:
                ts_size += thumbs_png_size
                ts_list.append(thumbs_png)
            # 获取s3对象，并计算总字节
            for i in range(15):
                shift = (i + 1) * 4
                duration = (fg >> shift) & 0xf
                if duration > 0:
                    ts_file = '{uid}/vod{channel}/{time}/ts{i}.ts'.format(uid=uid, channel=channel, time=time_stamp,
                                                                          i=i)
                    ts_list.append(ts_file)
                    ts_size += s3_obj.get_object_size(source_bucket_name, ts_file)  # 获取存储对象字节,单位B
            ts_size = round(ts_size / 1024 / 1024, 2)  # 字节转换为MB单位
            temp_size = ts_size + use_size
            if temp_size > all_size:
                LOGGER.info('{}用户无空间上传，套餐容量为：{}，使用容量为：{}'.format(uid, all_size, temp_size))
                return response.json(910)
            time_stamp = int(time_stamp) * 1000  # 转换单位为毫秒
            icloud_record_qs = IcloudStorageRecord.objects.filter(user_id=user_id, uid=uid, channel=channel,
                                                                  time_stamp=time_stamp,
                                                                  size=ts_size, file_type=1)
            if not icloud_record_qs.exists():  # 转移云盘，并记录上传记录，更新使用容量
                for source_key in ts_list:
                    ts_name = source_key.split('/')[-1]
                    target_key = '{user_id}/ts_file/{uid}/channel{channel}/{time}/{ts_name}'.format(user_id=user_id,
                                                                                                    uid=uid,
                                                                                                    channel=channel,
                                                                                                    time=time_stamp,
                                                                                                    ts_name=ts_name)
                    s3_obj.copy_single_obj(source_bucket_name, source_key, target_bucket_name, target_key)

                IcloudStorageRecord.objects.create(user_id=user_id, uid=uid, channel=channel, time_stamp=time_stamp,
                                                   nickname=nickname,
                                                   sec=sec, bucket_id=target_bucket_id, fg=fg, size=ts_size,
                                                   file_type=1)
                use_details_qs.update(use_size=temp_size)
                return response.json(0)
            else:
                return response.json(174)
        except Exception as e:
            LOGGER.info('云存转移云盘异常:{}'.format(repr(e)))
            return response.json(500)

    @staticmethod
    def local_upload(request_dict, response, user_id):
        """
        本地上传云盘
        @param request_dict: 请求参数
        @param user_id: 用户id
        @request_dict uid: 设备uid
        @request_dict channel: 设备通道
        @request_dict time_stamp: 时间戳
        @request_dict size: 文件大小
        @request_dict file_type: 文件类型
        @request_dict sec: 时长
        @param response: 响应对象
        @return: response
        """
        LOGGER.info('开始本地转移到云盘')
        uid = request_dict.get('uid', None)
        channel = request_dict.get('channel', None)
        time_stamp = request_dict.get('time_stamp', None)
        size = request_dict.get('size', None)
        file_type = request_dict.get('file_type', None)
        sec = request_dict.get('sec', 0)
        if not all([uid, channel, time_stamp, size]):
            return response.json(444, {'error param': 'uid,channel,time_stamp,size'})
        device_qs = Device_Info.objects.filter(UID=uid, userID=user_id).values('NickName')
        if not device_qs.exists():
            return response.json(173)
        # 查询是否开通云盘
        use_details_qs = IcloudUseDetails.objects.filter(user_id=user_id).values('id', 'use_size', 'bucket_id')
        if not use_details_qs.exists():
            return response.json(173)
        size = float(size)  # 单位是MB
        use_details_id = use_details_qs[0]['id']
        bucket_id = use_details_qs[0]['bucket_id']
        use_size = float(use_details_qs[0]['use_size'])
        now_time = int(time.time())
        nickname = device_qs[0]['NickName']
        # 判断云盘是否还有容量
        all_size = IcloudService.objects.filter(Q(use_details_id=use_details_id), Q(use_status=0),
                                                Q(end_time__gt=now_time) | Q(end_time=0)).values(
            'size').aggregate(total_size=Sum('size'))['total_size']
        all_size = all_size * 1024 if all_size else 0
        if use_size > all_size:
            LOGGER.info('{}用户套餐总容量为：{}，已使用容量为：{}'.format(uid, all_size, use_size))
            return response.json(910)

        try:
            new_size = round(use_size + size, 2)
            icloud_record_qs = IcloudStorageRecord.objects.filter(user_id=user_id, uid=uid, channel=channel,
                                                                  time_stamp=time_stamp,
                                                                  size=size, file_type=file_type)
            if not icloud_record_qs.exists():
                IcloudStorageRecord.objects.create(user_id=user_id, uid=uid, channel=channel, time_stamp=time_stamp,
                                                   nickname=nickname,
                                                   sec=sec, bucket_id=bucket_id, size=size,
                                                   file_type=file_type)
                use_details_qs.update(use_size=new_size)
                return response.json(0)
            else:
                return response.json(174)
        except Exception as e:
            LOGGER.info('本地转移云盘异常:{}'.format(repr(e)))
            return response.json(500)

    @staticmethod
    def get_upload_url(request_dict, response, user_id):
        """
        获取s3上传地址
        @param request_dict: 请求参数
        @param user_id: 用户id
        @request_dict time_stamp: 时间戳
        @request_dict file_type: 文件类型
        @request_dict uid: 设备uid
        @request_dict channel: 设备通道
        @param response: 响应对象
        @return: response
        """
        LOGGER.info('获取s3上传地址')
        time_stamp = request_dict.get('time_stamp', None)
        file_type = request_dict.get('file_type', None)
        uid = request_dict.get('uid', None)
        channel = request_dict.get('channel', None)
        if not all([time_stamp, uid, channel]):
            return response.json(444, {'error param': 'time_stamp,channel,uid'})
        device_qs = Device_Info.objects.filter(UID=uid, userID=user_id)
        if not device_qs.exists():
            return response.json(173)
        # 查询是否开通云盘
        use_details_qs = IcloudUseDetails.objects.filter(user_id=user_id).values('id', 'use_size', 'bucket_id')
        if not use_details_qs.exists():
            return response.json(173)
        use_details_id = use_details_qs[0]['id']
        use_size = use_details_qs[0]['use_size']
        bucket_id = use_details_qs[0]['bucket_id']
        now_time = int(time.time())
        # 判断云盘是否还有容量
        all_size = IcloudService.objects.filter(Q(use_details_id=use_details_id), Q(use_status=0),
                                                Q(end_time__gt=now_time) | Q(end_time=0)).values(
            'size').aggregate(total_size=Sum('size'))['total_size']
        all_size = all_size * 1024 if all_size else 0
        excess_size = all_size - use_size
        if excess_size < 0:
            LOGGER.info('{}用户套餐总容量为：{}，已使用容量为：{}'.format(user_id, all_size, use_size))
            return response.json(910)

        bucket_qs = VodBucketModel.objects.filter(id=bucket_id).values('bucket', 'region', 'mold')
        if not bucket_qs.exists():
            return response.json(173)
        bucket_name = bucket_qs[0]['bucket']
        bucket_region = bucket_qs[0]['region']
        mold = bucket_qs[0]['mold']
        try:
            s3_obj = AmazonS3Util(
                AWS_ACCESS_KEY_ID[mold],
                AWS_SECRET_ACCESS_KEY[mold],
                bucket_region
            )
            if file_type == '0':  # 图片
                key_name = '{user_id}/image_file/{uid}/channel{channel}/{time}/{time}.jpeg'.format(user_id=user_id,
                                                                                                   uid=uid,
                                                                                                   channel=channel,
                                                                                                   time=time_stamp)
            elif file_type == '2':
                key_name = '{user_id}/mp4_file/{uid}/channel{channel}/{time}/{time}.mp4'.format(user_id=user_id,
                                                                                                uid=uid,
                                                                                                channel=channel,
                                                                                                time=time_stamp)
            else:
                return response.json(444, {'error param': 'file_type'})
            upload_url = s3_obj.generate_put_obj_url(bucket_name, key_name)
            return response.json(0, {'uploadUrl': upload_url, 'excessSize': excess_size})
        except Exception as e:
            LOGGER.info('获取s3上传地址异常:{}'.format(repr(e)))
            return response.json(500)

    @staticmethod
    def delete_icloud_record(request_dict, response, user_id):
        """
        删除云盘记录
        @param request_dict: 请求参数
        @param user_id: 用户id
        @request_dict time_stamp: 时间戳
        @request_dict uid: 设备uid
        @request_dict channel: 设备通道
        @request_dict file_type: 文件类型
        @param response: 响应对象
        @return: response
        """
        LOGGER.info('删除云盘记录')
        time_stamp = request_dict.get('time_stamp', None)
        file_type = request_dict.get('file_type', None)
        uid = request_dict.get('uid', None)
        channel = request_dict.get('channel', None)
        if not all([time_stamp, uid, channel]):
            return response.json(444, {'error param': 'time_stamp,channel,uid'})
        # 查询是否开通云盘
        use_details_qs = IcloudUseDetails.objects.filter(user_id=user_id).values('use_size', 'bucket_id')
        if not use_details_qs.exists():
            return response.json(173)
        use_size = float(use_details_qs[0]['use_size'])
        bucket_id = use_details_qs[0]['bucket_id']
        icloud_record_qs = IcloudStorageRecord.objects.filter(user_id=user_id, uid=uid, channel=channel,
                                                              time_stamp=time_stamp,
                                                              bucket_id=bucket_id, file_type=file_type)
        if not icloud_record_qs.exists():
            return response.json(173)
        record_qs = icloud_record_qs.values('size')
        size = float(record_qs[0]['size'])
        bucket_qs = VodBucketModel.objects.filter(id=bucket_id).values('bucket', 'region', 'mold')
        if not bucket_qs.exists():
            return response.json(173)
        bucket_name = bucket_qs[0]['bucket']
        bucket_region = bucket_qs[0]['region']
        mold = bucket_qs[0]['mold']
        try:
            s3_obj = AmazonS3Util(
                AWS_ACCESS_KEY_ID[mold],
                AWS_SECRET_ACCESS_KEY[mold],
                bucket_region
            )
            new_size = round(use_size - size, 2)
            new_size = new_size if new_size > 0 else 0
            if file_type == '0':  # 图片
                key_name = '{user_id}/image_file/{uid}/vod{channel}/{time}'.format(user_id=user_id, uid=uid,
                                                                                   channel=channel,
                                                                                   time=time_stamp)
                object_list = s3_obj.get_object_list(bucket_name, key_name)
            elif file_type == '1':  # ts文件
                key_name = '{user_id}/ts_file/{uid}/vod{channel}/{time}'.format(user_id=user_id, uid=uid,
                                                                                channel=channel,
                                                                                time=time_stamp)
                object_list = s3_obj.get_object_list(bucket_name, key_name)
            elif file_type == '2':  # mp4文件
                key_name = '{user_id}/mp4_file/{uid}/vod{channel}/{time}'.format(user_id=user_id, uid=uid,
                                                                                 channel=channel,
                                                                                 time=time_stamp)
                object_list = s3_obj.get_object_list(bucket_name, key_name)
            else:
                return response.json(444, {'error param': 'file_type'})
            for item in object_list:
                s3_obj.delete_obj(bucket_name, item['Key'])
            icloud_record_qs.delete()
            use_details_qs.update(use_size=new_size)
            return response.json(0)
        except Exception as e:
            LOGGER.info('删除云盘记录异常:{}'.format(repr(e)))
            return response.json(500)

    @staticmethod
    def get_icloud_list(request_dict, response, user_id):
        """
        获取云盘播放列表
        @param request_dict: 请求参数
        @param user_id: 用户id
        @request_dict time_stamp: 时间戳
        @request_dict uid: 设备uid
        @request_dict channel: 设备通道
        @param response: 响应对象
        @return: response
        """
        LOGGER.info('删除云盘记录')
        start_time = request_dict.get('start_time', None)
        end_time = request_dict.get('end_time', None)
        uid = request_dict.get('uid', None)
        file_type = request_dict.get('file_type', None)
        page = request_dict.get('page', None)
        line = request_dict.get('line', None)
        if not all([page, line]):
            return response.json(444, {'error param': 'page, line'})
        page = int(page)
        line = int(line)
        now_time = int(time.time())
        icloud_list = []
        use_details_qs = IcloudUseDetails.objects.filter(user_id=user_id).values('id')
        if not use_details_qs.exists():
            return response.json(911)
        use_details_id = use_details_qs[0]['id']
        all_size = IcloudService.objects.filter(Q(use_details_id=use_details_id), Q(use_status=0),
                                                Q(end_time__gt=now_time) | Q(end_time=0)).values(
            'size').aggregate(total_size=Sum('size'))['total_size']
        all_size = float(all_size * 1024) if all_size else 0  # 转换单位为MB
        icloud_record_qs = IcloudStorageRecord.objects.filter(user_id=user_id)
        if start_time and end_time:  # 按时间段查询
            icloud_record_qs = icloud_record_qs.filter(time_stamp__gte=start_time, time_stamp__lt=end_time)
        if uid:  # 按设备昵称查询
            uid_list = uid.split(',')
            icloud_record_qs = icloud_record_qs.filter(uid__in=uid_list)
        if file_type:  # 按文件类型查询
            file_type_list = file_type.split(',')
            icloud_record_qs = icloud_record_qs.filter(file_type__in=file_type_list)
        icloud_record_qs = icloud_record_qs.values('bucket_id', 'sec', 'fg', 'nickname', 'uid', 'channel', 'size', 'id',
                                                   'time_stamp', 'file_type').order_by('-time_stamp')[
                           (page - 1) * line:page * line]
        if not icloud_record_qs.exists():
            return response.json(0, {'icloudList': icloud_list, 'notShow': 0})
        bucket_id = icloud_record_qs[0]['bucket_id']
        bucket_qs = VodBucketModel.objects.filter(id=bucket_id).values('bucket', 'region', 'mold')
        if not bucket_qs.exists():
            return response.json(173)
        bucket_name = bucket_qs[0]['bucket']
        bucket_region = bucket_qs[0]['region']
        mold = bucket_qs[0]['mold']
        total_size = 0
        try:
            s3_obj = AmazonS3Util(
                AWS_ACCESS_KEY_ID[mold],
                AWS_SECRET_ACCESS_KEY[mold],
                bucket_region
            )
            for item in icloud_record_qs:
                uid = item['uid']
                channel = item['channel']
                time_stamp = item['time_stamp']
                file_type = item['file_type']
                total_size += float(item['size'])
                uid_token = TokenObject().encryption(data={'uid': uid, 'user_id': user_id})
                res_data = {
                    'is_show': 1 if total_size < all_size else 0,  # 只展示剩余容量的数据，超过的部分不展示，1：展示；0：不展示
                    'time_stamp': time_stamp,
                    'icloud_id': item['id'],
                    'file_type': file_type,
                    'nick_name': item['nickname'],
                    'uid': uid
                }
                if file_type == 0:  # 图片,只返回图片地址
                    thumbs_png = '{user_id}/image_file/{uid}/channel{channel}/{time}/{time}.jpeg'.format(
                        user_id=user_id,
                        uid=uid,
                        channel=channel,
                        time=time_stamp)
                    response_url = s3_obj.generate_file_obj_url(bucket_name, thumbs_png)
                    res_data['thumb'] = response_url
                    icloud_list.append(res_data)
                elif file_type == 1:  # ts文件，返回播放地址
                    thumbs_png = '{user_id}/image_file/{uid}/channel{channel}/{time}/{time}.jpeg'.format(
                        user_id=user_id,
                        uid=uid,
                        channel=channel,
                        time=time_stamp)
                    response_url = s3_obj.generate_file_obj_url(bucket_name, thumbs_png)
                    ts_num = int(item['fg']) & 0xf
                    res_data['thumb'] = response_url
                    icloud_url = '{server_domain}icloud/service/icloudPlay?' \
                                 'uid={uid}&channel={channel}&time_stamp={time_stamp}&file_type=1&sign=tktktktk'. \
                        format(server_domain=SERVER_DOMAIN_SSL, uid=uid_token, channel=channel, time_stamp=time_stamp)
                    res_data['ts_num'] = ts_num
                    res_data['icloud_url'] = icloud_url
                    res_data['sec'] = item['sec']
                    icloud_list.append(res_data)
                elif file_type == 2:  # mp4文件，返回播放地址
                    mp4_file = '{user_id}/mp4_file/{uid}/channel{channel}/{time}/{time}.mp4'.format(
                        user_id=user_id,
                        uid=uid,
                        channel=channel,
                        time=time_stamp)
                    response_url = s3_obj.generate_file_obj_url(bucket_name, mp4_file)
                    res_data['icloud_url'] = response_url
                    res_data['sec'] = item['sec']
                    icloud_list.append(res_data)
            not_show = total_size - all_size if total_size > all_size else 0
            return response.json(0, {'icloudList': icloud_list, 'notShow': not_show})
        except Exception as e:
            LOGGER.info('获取云盘播放列表异常:{}'.format(repr(e)))
            return response.json(500)

    @staticmethod
    def icloud_play(request_dict, response):
        """
        云盘播放
        @param request_dict: 请求参数
        @request_dict time_stamp: 时间戳
        @request_dict uid: 设备uid
        @request_dict channel: 设备通道
        @param response: 响应对象
        @return: response
        """
        LOGGER.info('播放云盘记录')
        time_stamp = request_dict.get('time_stamp', None)
        uid_token = request_dict.get('uid', None)
        channel = request_dict.get('channel', None)
        file_type = request_dict.get('file_type', None)
        if not all([time_stamp, uid_token, channel, file_type]):
            return response.json(444, {'error param': 'time_stamp, uid_token, channel, file_type'})
        if file_type != '1':
            return response.json(444, {'error param': 'file_type'})
        token = jwt.decode(uid_token, OAUTH_ACCESS_TOKEN_SECRET, algorithms='HS256')
        uid = token.get('uid', '')
        user_id = token.get('user_id', '')
        icloud_record_qs = IcloudStorageRecord.objects.filter(user_id=user_id, uid=uid, channel=channel,
                                                              file_type=file_type,
                                                              time_stamp=time_stamp).values('bucket_id', 'fg')
        if not icloud_record_qs.exists():
            return response.json(173)
        bucket_id = icloud_record_qs[0]['bucket_id']
        fg = int(icloud_record_qs[0]['fg'])
        bucket_qs = VodBucketModel.objects.filter(id=bucket_id).values('bucket', 'region', 'mold')
        if not bucket_qs.exists():
            return response.json(173)
        bucket_name = bucket_qs[0]['bucket']
        bucket_region = bucket_qs[0]['region']
        mold = bucket_qs[0]['mold']
        try:
            s3_obj = AmazonS3Util(
                AWS_ACCESS_KEY_ID[mold],
                AWS_SECRET_ACCESS_KEY[mold],
                bucket_region
            )
            playlist_entries = []
            for i in range(15):
                shift = (i + 1) * 4
                duration = (fg >> shift) & 0xf
                if duration > 0:
                    ts_file = '{user_id}/ts_file/{uid}/channel{channel}/{time_stamp}/ts{i}.ts'.format(
                        user_id=user_id, uid=uid, channel=channel, time_stamp=time_stamp, i=i)
                    response_url = s3_obj.generate_file_obj_url(bucket_name, ts_file)
                    playlist_entries.append({
                        'name': response_url,
                        'duration': duration,
                    })
            playlist = PlaylistGenerator(playlist_entries).generate()
            response = HttpResponse(playlist)
            response['Content-Type'] = 'application/octet-stream'
            response['Content-Disposition'] = 'attachment;filename="play.m3u8"'
            return response
        except Exception as e:
            LOGGER.info('云盘播放异常:{}'.format(repr(e)))
            return response.json(500)