import hashlib
import os
import simplejson as json
import time
import traceback
from wsgiref.util import FileWrapper
from zlib import crc32

from django.http import HttpResponse
from django.utils.decorators import method_decorator
from django.views.decorators.csrf import csrf_exempt
from django.views.generic import TemplateView

from Ansjer.config import BASE_DIR
from Ansjer.config import SERVER_DOMAIN
from Ansjer.config import SERVER_TYPE
from Model.models import Device_User, EquipmentVersionLimitModel, CountryIPModel
from Model.models import Equipment_Version
from Object.RedisObject import RedisObject
from Object.ResponseObject import ResponseObject
from Object.TokenObject import TokenObject
from Object.UrlTokenObject import UrlTokenObject
from Service.CommonService import CommonService
from Service.ModelService import ModelService


def downloadUrl(fileType, fileCode, fileVersion, fileName):
    fullPath = os.path.join(BASE_DIR, "static/Upgrade").replace('\\', '/')
    if fileType == 'IPC':
        Path = '/'.join((fullPath, 'IPC', fileCode, fileVersion, fileName)).replace('\\', '/')
    elif fileType == 'DVR':
        Path = '/'.join((fullPath, 'DVR', fileCode, fileVersion, fileName)).replace('\\', '/')
    elif fileType == 'NVR':
        Path = '/'.join((fullPath, 'NVR', fileCode, fileVersion, fileName)).replace('\\', '/')
    elif fileType == 'XVR':
        Path = '/'.join((fullPath, 'IPC', fileCode, fileVersion, fileName)).replace('\\', '/')
    else:
        if fileType == 'CHM':
            Path = fileName
        else:
            Path = '/'.join((fullPath, 'Other', fileName)).replace('\\', '/')

    if os.path.isfile(Path):
        try:
            JSON = json.dumps(
                {
                    "result_code": 0,
                    "reason": 'Success',
                    "result": {},
                    "error_code": 0,
                }, ensure_ascii=False
            )
            wrapper = FileWrapper(open(Path, 'rb'))
            response = HttpResponse(wrapper, content_type="application/octet-stream")
            response['Content-Length'] = os.path.getsize(Path)
            response['Content-Disposition'] = 'attachment; filename=%s' % os.path.basename(Path)
            response['Content-MD5'] = getMD5orSHA265(Path)
            response['Content-SHA265'] = getMD5orSHA265(Path, 'SHA265')
            response['Content-CRC32'] = getMD5orSHA265(Path, 'CRC32')
            response['Content-Error'] = JSON
            return response

        except Exception as e:
            res = ResponseObject()
            errorJSON = res.formal(906, {'details': repr(e)})
            response = HttpResponse(errorJSON, content_type='text/plain', charset='utf-8')
            response['Content-Error'] = errorJSON
            return response
    else:
        res = ResponseObject()
        errorJSON = res.formal(907)
        response = HttpResponse(errorJSON, content_type='text/plain', charset='utf-8')
        response['Content-Error'] = errorJSON
        return response


def getMD5orSHA265(fileName, encryptionType='MD5'):
    """

    :param filePath:
    :param encryptionType:
    :return:
    """
    if not os.path.isfile(fileName):
        return ''
    else:
        if encryptionType == 'MD5':
            encryption = hashlib.md5()
        elif encryptionType == 'SHA265':
            encryption = hashlib.sha256()
        elif encryptionType == 'CRC32':
            f = open(fileName, 'rb')
            chunk = f.read()
            return crc32(chunk)

        f = open(fileName, 'rb')
        block_size = 8192  # why is 8192 | 8192 is fast than 2048

        while True:
            chunk = f.read(block_size)
            if not chunk:
                break
            encryption.update(chunk)

        f.close()
        return encryption.hexdigest()


@csrf_exempt
def downloadUpdataFileUrl(request):
    response = ResponseObject()
    if request.method == 'GET':
        request_dict = request.GET
    elif request.method == 'POST':
        request_dict = request.POST
    else:
        errorJSON = response.formal(444)
        response = HttpResponse(errorJSON, content_type='text/plain', charset='utf-8')
        response['Content-Error'] = errorJSON
        return response
    fileType = request_dict.get('fileType', None)
    fileCode = request_dict.get('fileCode', None)
    fileVersion = request_dict.get('fileVersion', None)
    fileName = request_dict.get('fileName', None)
    if fileType != None and fileCode != None and fileVersion != \
            None and fileName != None:
        return downloadUrl(fileType, fileCode, fileVersion, fileName, response)

    else:
        errorJSON = response.formal(444)
        response = HttpResponse(errorJSON, content_type='text/plain', charset='utf-8')
        response['Content-Error'] = errorJSON
        return response


@csrf_exempt
def getEquipmentVersionInterface(request):
    response = ResponseObject()
    if request.method == "POST":
        request.encoding = 'utf-8'
        request_dict = request.POST
    elif request.method == "GET":
        request.encoding = 'gb2312'
        request_dict = request.GET
    else:
        return response.json(444)
    code = request_dict.get('code', None)
    ov = request_dict.get('ov', None)
    if not code:
        return response.json(444, 'code')
    eqs = Equipment_Version.objects.filter(code=code, status=1, lang='en').order_by('-data_joined')
    if not eqs.exists():
        return response.json(900)
    if ov is not None:
        # 判断大小
        nv = eqs[0].softwareVersion
        if ov > nv:
            return response.json(0, {'softwareVersion': ov})
    equipment = eqs[0]
    return response.json(0, {'softwareVersion': equipment.softwareVersion})


@csrf_exempt
def getUpdataFileUrlInterface(request):
    response = ResponseObject()
    request.encoding = 'utf-8'
    if request.method == "POST":
        code = request.POST.get('code', None)
    elif request.method == "GET":
        code = request.GET.get('code', None)
    else:
        return response.json(444)
    if not code:
        return response.json(444, 'code')
    eq = Equipment_Version.objects.filter(code=code, status=1, lang='en').order_by('-data_joined')
    # 判断是否有版本存在
    if not eq.exists():
        return response.json(902)
    file_path = eq[0].filePath
    urls = []
    if file_path:
        if file_path.find('static/Upgrade/') != -1:
            path = file_path.replace('static/Upgrade/', '').replace('\\', '/')
            url = SERVER_DOMAIN + 'OTA/downloads/' + path + '?time=' + str(time.time())
            urls.append(url)
        if file_path.find('static/otapack') != -1:
            url = SERVER_DOMAIN + 'OTA/downloadsPack/' + file_path + '?time=' + str(time.time())
            urls.append(url)
    if len(urls) > 0:
        res = {
            "urlCount": len(urls),
            "url": urls,
            "fileSize": eq[0].fileSize,
            "Description": eq[0].Description,
        }
        return response.json(0, res)
    else:
        return response.json(901)


@csrf_exempt
def downloadUpdataFileUrlInterface(request, fileType, fileName,
                                   *callback_args, **callback_kwargs):
    res = ResponseObject()
    if fileType is not None and fileName is not None:
        fullPath = os.path.join(BASE_DIR, "static/Upgrade/").replace('\\', '/')
        if fileType == 'IPC':
            fullPath += 'IPC/' + fileName
        elif fileType == 'DVR':
            fullPath += 'DVR/' + fileName
        elif fileType == 'NVR':
            fullPath += 'NVR/' + fileName
        elif fileType == 'XVR':
            fullPath += 'XVR/' + fileName
        elif fileType == 'User':
            fullPath = os.path.join(BASE_DIR, "static/").replace('\\', '/')
            fullPath += 'User/' + fileName
        elif fileType == 'ADCloud':
            fullPath = os.path.join(BASE_DIR, "static/APK/").replace('\\', '/')
            fullPath += 'ADCloud/' + fileName
        elif fileType == 'ACCloud':
            fullPath = os.path.join(BASE_DIR, "static/APK/").replace('\\', '/')
            fullPath += 'ACCloud/' + fileName
        else:
            fullPath += 'Other/' + fileName

        print(fullPath)
        if os.path.isfile(fullPath):
            try:
                JSON = res.formal(0)
                if fileType != 'User':
                    wrapper = FileWrapper(open(fullPath, 'rb'))
                    response = HttpResponse(wrapper, content_type="application/octet-stream")
                    response['Content-Length'] = os.path.getsize(fullPath)
                    response['Content-Disposition'] = 'attachment; filename=%s' % os.path.basename(fullPath)
                    response['Content-MD5'] = getMD5orSHA265(fullPath)
                    # 校验文件md5值
                    response['Content-SHA265'] = getMD5orSHA265(fullPath, 'SHA265')
                    response['Content-CRC32'] = getMD5orSHA265(fullPath, 'CRC32')
                    response['Content-Error'] = JSON
                    return response
                else:
                    Imagedata = open(fullPath, 'rb').read()
                    response = HttpResponse(Imagedata, content_type="image/jpeg")
                    return response
            except Exception as e:
                errorJSON = res.formal(906)
                response = HttpResponse(errorJSON, content_type='text/plain', charset='utf-8')
                response['Content-Error'] = errorJSON
                return response
        else:
            errorJSON = res.formal(907)
            response = HttpResponse(errorJSON, content_type='text/plain', charset='utf-8')
            response['Content-Error'] = errorJSON
            return response

    else:
        errorJSON = res.formal(444)
        response = HttpResponse(errorJSON, content_type='text/plain', charset='utf-8')
        response['Content-Error'] = errorJSON
        return response


class getUploadFiletoDirView(TemplateView):
    @method_decorator(csrf_exempt)
    def dispatch(self, *args, **kwargs):
        return super(getUploadFiletoDirView, self).dispatch(*args, **kwargs)

    def post(self, request, *args, **kwargs):
        request.encoding = 'utf-8'
        request_dict = request.POST
        fileName = request.FILES.get('fileName', None)
        return self.ValidationError(request_dict, fileName)

    def get(self, request, *args, **kwargs):
        request.encoding = 'gb2312'
        request_dict = request.GET
        fileName = request.FILES.get('fileName', None)
        return self.ValidationError(request_dict, fileName)

    def ValidationError(self, request_dict, fileName):
        response = ResponseObject()
        token = request_dict.get('token', None)
        fileType = request_dict.get('fileType', None)
        fileCode = request_dict.get('fileCode', None)
        fileVersion = request_dict.get('fileVersion', None)
        if not fileName or not fileType:
            return response.json(444, 'fileName,fileType')
        tko = TokenObject(token)
        response.lang = tko.lang
        if tko.code != 0:
            return response.json(tko.code)
        userID = tko.userID
        if not userID:
            return response.json(104)
        own_perm = ModelService.check_perm(userID=userID, permID=210)
        if not own_perm:
            return response.json(404)
        if fileVersion != None and fileCode != None:
            return self.getUploadFiletoDir(userID, fileType, fileName, response, fileCode,
                                           fileVersion=fileVersion)
        else:
            return self.getUploadFiletoDir(userID, fileType, fileName, response)

    def getUploadFiletoDir(self, userID, fileType, fileName, response, *args, **kwargs):
        """
        将上传的文件写入服务器对应目录下
        :param Type: equipment type
        :param fileName: File name of upgrade file.
        :return: filePath
        """
        User = Device_User.objects.filter(userID=userID)

        if not User:
            return response.json(104)
        own_perm = ModelService.check_perm(userID, permID=210)
        if own_perm is not True:
            return response.json(404)
        updataFile = fileName.name
        updataFile = updataFile.replace(' ', '+')
        versionIndex = updataFile.find('.', updataFile.find('.', updataFile.find('.') + 1) + 1)
        codeIndex = versionIndex + 12

        if codeIndex != -1 and versionIndex != -1:
            fileVersion = len(updataFile[1: versionIndex]) > 0 and updataFile[1: versionIndex] or None
            fileCode = len(updataFile[versionIndex + 1: codeIndex]) > 0 and \
                       updataFile[versionIndex + 1: codeIndex] or None
            if fileCode is not None and fileVersion is not None:
                return self.getDir(fileType, fileName, fileCode, fileVersion, response)
            else:
                fileCode = kwargs.get('fileCode', None)
                fileVersion = kwargs.get('fileVersion', None)
                print(fileCode, fileVersion)
                if fileCode != None and fileVersion != None:
                    return self.getDir(fileType, fileName, fileCode, fileVersion)
                else:
                    return response.json(903)
        else:
            fileCode = kwargs.get('fileCode', None)
            fileVersion = kwargs.get('fileVersion', None)
            if fileCode != None and fileVersion != None:
                return self.getDir(fileType, fileName, fileCode, fileVersion, response)
            else:
                return response.json(903)

    def getDir(self, fileType, fileName, fileCode, fileVersion, response):
        try:
            if fileCode != None and fileVersion != None:
                path = '/'.join((BASE_DIR, 'static/Upgrade', fileType, fileCode, fileVersion)).replace('\\', '/') + '/'
            else:
                if fileType != 'IPC' and fileType != 'DVR' and fileType != 'NVR' and fileType != 'XVR':
                    path = '/'.join((BASE_DIR, "static/Upgrade", 'Other')).replace('\\', '/') + '/'

            if not os.path.exists(path):
                os.makedirs(path)
                file_name = path + str(fileName)
                if os.path.exists(file_name):
                    os.remove(file_name)
                destination = open(file_name, 'wb+')
                for chunk in fileName.chunks():
                    destination.write(chunk)
                destination.close()
            else:
                file_name = path + str(fileName)
                if os.path.exists(file_name):
                    os.remove(file_name)

                destination = open(file_name, 'wb+')
                for chunk in fileName.chunks():
                    destination.write(chunk)
                destination.close()
        except Exception as e:
            errorInfo = traceback.format_exc()
            print('上传文件错误: %s' % errorInfo)
            return response.json(700, {'details': repr(e)})
        else:
            index = file_name.find('static/')
            filePath = file_name[index:]
            return response.json(0, {'filePath': filePath})


@csrf_exempt
def addNewEquipmentVersionInterface(request):
    request.encoding = 'utf-8'
    response = ResponseObject()
    if request.method == "POST":
        request_dict = request.POST
    elif request.method == "GET":
        request_dict = request.GET
    else:
        return response.json(444)
    deviceContent = request_dict.get('content', None).encode('utf-8')
    token = request_dict.get('token', None)
    file_s = request.FILES.get('file', None)
    deviceContent = str(deviceContent, encoding='utf-8')
    deviceContent = deviceContent.replace(' ', ' ').replace('\'', '\"')
    if deviceContent is None:
        return response.json(444, 'content')
    tko = TokenObject(token)
    response.lang = tko.lang
    if tko.code != 0:
        return response.json(tko.code)
    userID = tko.userID
    own_perm = ModelService.check_perm(userID=userID, permID=220)
    if own_perm is False:
        return response.json(404)
    try:
        deviceData = json.loads(deviceContent)
        version = deviceData.get('version', None)
        filePath = deviceData.get('filePath', None)
        code = deviceData.get('code', None)
        lang = deviceData.get('lang', None)
        if code and lang:
            try:
                Equipment_Version.objects.filter(code=code,lang=lang).delete()
            except Exception as e:
                pass
        if version is None or filePath is None:
            return response.json(444, 'content')
        deviceData['filePath'] = ','.join(filePath)
        paths = 'static/versions/image'
        if not os.path.exists(paths):
            os.makedirs(paths)  # makedirs 创建文件时如果路径不存在会创建这个路径
            # print ('该文件不存在')
        else:
            print ('该文件存在')
        print(file_s)
        if file_s is None:
            deviceData['img'] = ''
        else:
            rv_path = 'static/versions/image/' + code + '.png'
            try:
                as_path = os.path.join(BASE_DIR, rv_path)
                if os.path.exists(as_path):
                    os.remove(as_path)
                with open(as_path, 'wb+') as destination:
                    for chunk in file_s.chunks():
                        destination.write(chunk)
            except Exception as e:
                pass
            else:
                deviceData['img'] = SERVER_DOMAIN + 'sysfile/' + rv_path
        ev_qs = Equipment_Version(
            eid=CommonService.getUserID(getUser=False, setOTAID=True),
            **deviceData)
        ev_qs.save()
    except Exception as e:
        return response.json(444, repr(e))
    else:
        res = CommonService.qs_to_dict([ev_qs])
        return response.json(0, res)


def showAllEquipmentVersion(userID, response):
    userValid = Device_User.objects.filter(userID=userID).order_by('-data_joined')
    if not userValid.exists():
        return response.json(104)
    own_perm = ModelService.check_perm(userID=userID, permID=240)
    if not own_perm:
        return response.json(404)
    qs = Equipment_Version.objects.all()
    res = CommonService.qs_to_dict(qs)
    return response.json(0, res)


# 检测ota更新包
@csrf_exempt
def getNewVerInterface(request):
    response = ResponseObject()
    if request.method == "POST":
        request_dict = request.POST
    elif request.method == "GET":
        request_dict = request.GET
    else:
        return response.json(404)
    code = request_dict.get('code', None)
    token = request_dict.get('token', None)
    lang = request_dict.get('lang', None)
    now_ver = request_dict.get('ver', None)
    uid = request_dict.get('uid', None)
    if not code or not now_ver:
        return response.json(902, {'param':'code,ver'})
        # return response.json(444, 'code,ver')
    tko = TokenObject(token)
    response.lang = tko.lang
    if tko.code != 0:
        return response.json(tko.code)
    if lang == 'zh-Hans' or lang == 'cn':
        equipmentValid = Equipment_Version.objects.filter(code=code, status=1, lang='zh-Hans').order_by(
            '-data_joined')
    else:
        equipmentValid = Equipment_Version.objects.filter(code=code, status=1, lang='en').order_by(
            '-data_joined')

    if equipmentValid.exists():
        equipment = equipmentValid[0]
        redisObject = RedisObject()
        key = 'limit_{eid}'.format(eid=equipment.eid)

        evl_qs = redisObject.get_data(key=key)
        if evl_qs:
            evl_qs = json.loads(evl_qs)
        else:
            evl_qs = EquipmentVersionLimitModel.objects.filter(equipment_version_id=equipment.eid, status=1).values()
            if evl_qs.exists():
                redisObject.set_data(key=key, val=json.dumps(list(evl_qs.values())), expire=600)
        if evl_qs and len(evl_qs) > 0:
            evl = evl_qs[0]
            if evl['type'] == 1: # uid限制
                uids = json.loads(evl['content'])
                if not uids.__contains__(uid):
                    return response.json(902)
            elif evl['type'] == 2: # user限制
                users = json.loads(evl['content'])
                if not users.__contains__(tko.userID):
                    return response.json(902)
            elif evl['type'] == 3: # 国家地区限制
                countries = json.loads(evl['content'])
                country_ip_qs = CountryIPModel.objects.filter(user_ex__userID=tko.userID)
                if country_ip_qs.exists():
                    country = country_ip_qs[0].country
                else:
                    country = CommonService.getAddr(CommonService.get_ip_address(request))
                if not countries.__contains__(country):
                    return response.json(902)

        file_path = equipment.filePath
        ver = equipment.softwareVersion
        max_ver = equipment.max_ver
        print(now_ver <= max_ver)
        if now_ver <= max_ver:
            # 创建url的token
            tko = UrlTokenObject()
            file_path = tko.generate(data={'Url': "ansjer/" + CommonService.RandomStr(6) + "/" + file_path})
            url = SERVER_DOMAIN + 'dlotapack/' + file_path
            print(url)
            # if SERVER_TYPE == 'Ansjer.formal_settings':
            #     url = SERVER_DOMAIN + 'dlotapack/' + file_path
            # else:
            #     这里调用国内服务器进行下载，防止下载bug
                # if code == '18E201200CA' or code == '18E201200CZ':
                #     url = 'http://www.zositech.xyz/dlotapack/' + file_path
                # else:
                #     url = SERVER_DOMAIN + 'dlotapack/' + file_path
            return response.json(0, {
                'ver': ver,
                'url': url,
                "Description": equipment.Description,
            })
        else:
            return response.json(902)
    else:
        return response.json(902)


# ota包上传
class uploadOTAInterfaceView(TemplateView):
    @method_decorator(csrf_exempt)
    def dispatch(self, *args, **kwargs):
        return super(uploadOTAInterfaceView, self).dispatch(*args, **kwargs)

    def post(self, request, *args, **kwargs):
        request.encoding = 'utf-8'
        token = request.POST.get('token', None)
        fileName = request.FILES.get('fileName', None)
        fileType = request.POST.get('fileType', None)
        language = request.POST.get('language', None)
        return self.validate(token, fileName, fileType, language)

    def get(self, request, *args, **kwargs):
        request.encoding = 'gb2312'
        token = request.GET.get('token', None)
        fileName = request.FILES.get('fileName', None)
        fileType = request.GET.get('fileType', None)
        language = request.GET.get('language', None)
        return self.validate(token, fileName, fileType, language)

    def validate(self, token, fileName, fileType, language):
        response = ResponseObject()
        if not fileName or not fileType:
            return response.json(444, 'fileName,fileType')
        tko = TokenObject(token)
        response.lang = tko.lang
        if tko.code != 0:
            return response.json(tko.code)
        userID = tko.userID
        if not userID:
            return response.json(104)
        own_permission = ModelService.check_perm(userID=userID, permID=210)
        if own_permission is not True:
            return response.json(404)
        return self.upload_ota_file(fileName, response, fileType, language)

    def upload_ota_file(self, fileName, response, fileType, language):
        try:
            if not language:
                language = 0
            path = '/'.join((BASE_DIR, 'static/otapack', fileType, str(language))).replace('\\', '/') + '/'
            if not os.path.exists(path):
                os.makedirs(path)
                file_name = path + str(fileName)
                if os.path.exists(file_name):
                    os.remove(file_name)
                destination = open(file_name, 'wb+')
                for chunk in fileName.chunks():
                    destination.write(chunk)
                destination.close()
            else:
                file_name = path + str(fileName)
                if os.path.exists(file_name):
                    os.remove(file_name)

                destination = open(file_name, 'wb+')
                for chunk in fileName.chunks():
                    destination.write(chunk)
                destination.close()
        except Exception as e:
            errorInfo = traceback.format_exc()
            print('上传文件错误: %s' % errorInfo)
            return response.json(700, {'details': repr(e)})
        else:
            index = file_name.find('static/')
            filePath = file_name[index:]
            return response.json(0, {'filePath': filePath})


# ota包下载
@csrf_exempt
def downloadOTAInterface(request, fullPath, *callback_args, **callback_kwargs):
    res = ResponseObject()
    print('fullPath:')
    print(fullPath)
    if fullPath:
        if os.path.isfile(fullPath):
            try:
                wrapper = FileWrapper(open(fullPath, 'rb'))
                response = HttpResponse(wrapper, content_type="application/octet-stream")
                response['Content-Length'] = os.path.getsize(fullPath)
                response['Content-Disposition'] = 'attachment; filename=%s' % os.path.basename(fullPath)
                response['Content-MD5'] = getMD5orSHA265(fullPath)
                # 校验文件md5值
                response['Content-SHA265'] = getMD5orSHA265(fullPath, 'SHA265')
                response['Content-CRC32'] = getMD5orSHA265(fullPath, 'CRC32')
                response['Content-Error'] = res.formal(0)
                return response
            except Exception as e:
                return res.json(906, repr(e))
        else:
            return res.json(907)
    else:
        return res.json(444, 'fullPath')


# ota包下载
@csrf_exempt
def downloadOTAInterfaceV2(request, fullPath, *callback_args, **callback_kwargs):
    res = ResponseObject()
    print('fullPath:')
    print(fullPath)
    # 解密url的token
    url_token = UrlTokenObject(fullPath)
    if ('' == url_token.Url):
        print('过期了')
        return res.json(907)
    else:
        print(url_token.Url)
        fp = url_token.Url
    fullPath = fp[14:]
    if fullPath:
        if os.path.isfile(fullPath):
            try:
                wrapper = FileWrapper(open(fullPath, 'rb'))
                response = HttpResponse(wrapper, content_type="application/octet-stream")
                response['Content-Length'] = os.path.getsize(fullPath)
                response['Content-Disposition'] = 'attachment; filename=%s' % os.path.basename(fullPath)
                response['Content-MD5'] = getMD5orSHA265(fullPath)
                # 校验文件md5值
                response['Content-SHA265'] = getMD5orSHA265(fullPath, 'SHA265')
                response['Content-CRC32'] = getMD5orSHA265(fullPath, 'CRC32')
                response['Content-Error'] = res.formal(0)
                return response
            except Exception as e:
                return res.json(906, repr(e))
        else:
            return res.json(907)
    else:
        return res.json(444, 'fullPath')


@csrf_exempt
def getDownLoadOTApackUrl(request):
    # QT获取升级文件的下载链接
    response = ResponseObject()
    if request.method == "POST":
        request_dict = request.POST
    elif request.method == "GET":
        request_dict = request.GET
    else:
        return response.json(444)
    deviceType = request_dict.get('deviceType', None)
    version = request_dict.get('version', None)
    if not deviceType or not version:
        return response.json(444, 'deviceType or version')
    equipmentVersion = Equipment_Version.objects.filter(mci=deviceType, version=version)
    # 判断是否有该版本存在
    if not equipmentVersion.exists():
        return response.json(907)
    file_path = equipmentVersion[0].filePath
    if file_path:
        if file_path.find('static/otapack') != -1:  # 只下载otapack路径下的文件
            url = SERVER_DOMAIN + 'OTA/downloadsPack/' + file_path  # 复用app下载ota包的方式
            # SERVER_DOMAIN = 'https://test.dvema.com/'
            # url = SERVER_DOMAIN + 'OTA/downloadsPack/' + file_path
            res = {
                "url": url,
            }
            return response.json(0, res)
        else:
            return response.json(901)
    else:
        return response.json(901)


@csrf_exempt
def checkMaxVersion(request):
    # QT检查ota设备软件版本是否需要更新
    response = ResponseObject()
    if request.method == "POST":
        request_dict = request.POST
    elif request.method == "GET":
        request_dict = request.GET
    else:
        return response.json(444)
    deviceType = request_dict.get('deviceType', None)
    version = request_dict.get('version', None) # 设备版本:当前版本+设备规格代码
    lang = request_dict.get('lang', None)   # 'zh-Hans','en'
    if not deviceType or not version:
        return response.json(444, 'deviceType or version')
    now_version = version[1:version.rindex('.')] # 去掉V
    code = version[version.rindex('.')+1:]
    equipmentVersion = Equipment_Version.objects.filter(mci=deviceType, code=code, lang=lang, status=1) # order by data_joined
    # 判断是否有该版本存在
    if not equipmentVersion.exists():
        return response.json(907)

    filePath = equipmentVersion[0].filePath
    softwareVersion = equipmentVersion[0].softwareVersion   # 可用最新版本的版本号
    maxVersion = equipmentVersion[0].max_ver
    if now_version >= softwareVersion:
        # 当前版本大于等于最新版本,不需要更新
        return response.json(902)
    url = SERVER_DOMAIN + 'OTA/downloadsPack/' + filePath   # 复用app下载ota包的方式
    res = {
        'url': url,
    }
    return response.json(0, res)