Flask:ckeditor4.13上传图片功能

def gen_rnd_filename():
    filename_prefix = datetime.datetime.now().strftime('%Y%m%d%H%M%S')
    return '%s%s' % (filename_prefix, str(random.randrange(1000, 10000)))
@main.route('/ckupload/', methods=['POST', 'OPTIONS'])
def ckupload():
    """CKEditor file upload"""
    error = ''
    url = ''
    callback = request.args.get("CKEditorFuncNum")
    if request.method == 'POST' and 'upload' in request.files:
        fileobj = request.files['upload']
        fname, fext = os.path.splitext(fileobj.filename)
        rnd_name = '%s%s' % (gen_rnd_filename(), fext)
        filepath = os.path.join(r'F:/flask/app/static/', 'upload', rnd_name)
        # 检查路径是否存在，不存在则创建
        dirname = os.path.dirname(filepath)
        if not os.path.exists(dirname):
            try:
                os.makedirs(dirname)
            except:
                error = 'ERROR_CREATE_DIR'
        elif not os.access(dirname, os.W_OK):
            error = 'ERROR_DIR_NOT_WRITEABLE'
        if not error:
            fileobj.save(filepath)
            url = url_for('static', filename='%s/%s' % ('upload', rnd_name))
            return jsonify({
                "uploaded": 1,
                "fileName": rnd_name,
                "url": url
            })
    else:
        return jsonify({
        "uploaded": 0,
        "error": {
            "message": "上传失败请重试！"
        }
})

在新版本中ckeditor希望获得的返回数据是json格式
前端：

        <form id='text'>
            <textarea name="editor1" id="editor1" class="ckeditor"  rows="10" cols="80"></textarea>
            <script>
                CKEDITOR.replace('editor1',
                {
                  filebrowserUploadUrl: '/ckupload/'
                }
                );
            </script>
        </form>