Django实战-信息资讯-UEditor文件上传

from django.http import FileResponse

def send_file(request,filename):
    fp = open(os.path.join(UEDITOR_UPLOAD_PATH,filename),'rb')
    response = FileResponse(fp)
    response['Content-Type'] = "application/octet-stream"
    return response

if hasattr(settings, "UEDITOR_UPLOAD_PATH"):
    urlpatterns += [
        path("f/<filename>", views.send_file, name='send_file')
    ]

@method_decorator([csrf_exempt,require_http_methods(['GET','POST'])],name='dispatch')
class UploadView(View):
    def __init__(self):
        super(UploadView, self).__init__()

    def _random_filename(self,rawfilename):
        """
        随机的文件名，保证文件名称不会冲突
        """
        letters = string.ascii_letters
        random_filename = str(time.time()) + "".join(random.sample(letters, 5))
        filename = hashlib.md5(random_filename.encode('utf-8')).hexdigest()
        subffix = os.path.splitext(rawfilename)[-1]
        return filename + subffix

    def _json_result(self,state='', url='', title='', original=''):
        """
        返回指定格式的json数据的
        """
        result = {
            'state': state,
            'url': url,
            'title': title,
            'original': original
        }
        return JsonResponse(result)

    def _upload_to_server(self,upfile,filename):
        """
        上传文件到自己的服务器
        """
        with open(os.path.join(UEDITOR_UPLOAD_PATH, filename), 'wb') as fp:
            for chunk in upfile.chunks():
                fp.write(chunk)
        url = reverse("ueditor:send_file", kwargs={"filename": filename})
        return 'SUCCESS', url, filename, filename


    def _action_config(self):
        """
        处理config类型的响应
        """
        config_path = UEDITOR_CONFIG_PATH
        with open(config_path, 'r', encoding='utf-8') as fp:
            result = json.loads(re.sub(r'\/\*.*\*\/', '', fp.read()))
            return JsonResponse(result)

    def _action_upload(self,request):
        """
        处理文件（图片，视频，普通文件）上传
        """
        upfile = request.FILES.get("upfile")
        filename = self._random_filename(upfile.name)

        qiniu_result = None
        server_result = None

        if UEDITOR_UPLOAD_TO_QINIU:
            qiniu_result = self._upload_to_qiniu(upfile,filename)

        if UEDITOR_UPLOAD_TO_SERVER:
            server_result = self._upload_to_server(upfile,filename)

        if qiniu_result and qiniu_result[0] == 'SUCCESS':
            return self._json_result(*qiniu_result)
        elif server_result and server_result[0] == 'SUCCESS':
            return self._json_result(*server_result)
        else:
            return self._json_result()


    def _action_scrawl(self,request):
        base64data = request.form.get("upfile")
        img = base64.b64decode(base64data)
        filename = self._random_filename('xx.png')
        with open(os.path.join(UEDITOR_UPLOAD_PATH, filename), 'wb') as fp:
            fp.write(img)
        url = reverse('ueditor:send_file', kwargs={"filename": filename})
        return self._json_result('SUCCESS', url, filename, filename)


    def dispatch(self, request, *args, **kwargs):
        super(UploadView, self).dispatch(request,*args,**kwargs)
        action = request.GET.get('action')
        if action == 'config':
            return self._action_config()
        elif action in ['uploadimage','uploadvideo','uploadfile']:
            return self._action_upload(request)
        elif action == 'uploadscrawl':
            return self._action_scrawl(request)
        else:
            return self._json_result()