# import json
# import time
# import zlib
# from datetime import datetime
# from time import mktime
#
# from flask import request, g
# from nc_http.tools.helpers import strip_value
#
#
# def filter_fields(data, valid_fields):
#     """
#     过滤字段
#     :param data:
#     :param valid_fields: 格式['field1', 'field2', 'field3', {'field4': ['sub_field1', 'sub_field2']}]
#     :return:
#     """
#     if isinstance(data, list):
#         tmp = []
#         for item in data:
#             tmp.append(filter_fields(item, valid_fields))
#         format_data = tmp
#     else:
#         format_data = {}
#         for field in valid_fields:
#             if isinstance(field, dict):
#                 for key, sub_valid_fields in field.items():
#                     if isinstance(sub_valid_fields, list) and key in data:
#                         format_data[key] = filter_fields(data[key], sub_valid_fields)
#             else:
#                 if field in data:
#                     format_data[field] = data[field]
#     return format_data
#
#
# def get_client_ip(request):
#     """
#     获取客户端 ip
#     :param request:
#     :return:
#     """
#     x_forwarded_for = request.headers.get('X-Forwarded-For')
#     if x_forwarded_for:
#         ips = x_forwarded_for.split(',')
#         return ips[0].strip()
#     return request.headers.get('X-Real-Ip', request.remote_addr)
#
#
# def get_time(data, is_datetime=False):
#     if data:
#         if isinstance(data, int):
#             return data
#
#         if isinstance(data, datetime):
#             return int(time.mktime(data.timetuple()))
#
#         _data = None
#         if data.isdigit():
#             _data = int(data)
#             if is_datetime:
#                 _data = datetime.fromtimestamp(_data)
#         else:
#             if data.count('-') == 2:
#                 date_format = '%Y-%m-%d'
#             elif data.count('-') == 1:
#                 date_format = '%Y-%m'
#             elif data.count('/') == 2:
#                 date_format = '%Y/%m/%d'
#
#             else:
#                 date_format = ''
#
#             if data.count(':') == 2:
#                 time_format = '%H:%M:%S'
#             elif data.count(':') == 1:
#                 time_format = '%H:%M'
#             else:
#                 time_format = ''
#
#             if date_format or time_format:
#                 if ' ' in data:
#                     datetime_format = '{} {}'.format(date_format, time_format)
#                 else:
#                     datetime_format = '{}{}'.format(date_format, time_format)
#
#                 _data = datetime.strptime(data, datetime_format)
#                 if is_datetime is False:
#                     _data = int(mktime(_data.timetuple()))
#             else:
#                 if is_datetime:
#                     return None
#                 return 0
#     else:
#         if is_datetime:
#             return None
#         return 0
#
#     return _data
#
#
# def camelize(uncamelized_str):
#     if not uncamelized_str:
#         return uncamelized_str
#     result = ''.join(i.capitalize() for i in uncamelized_str.split('_'))
#     result = ''.join((result[0].lower(), result[1:]))
#     return result
#
#
# def uncamelize(camelized_str):
#     if not camelized_str:
#         return camelized_str
#     lst = []
#     for index, char in enumerate(camelized_str):
#         if char.isupper() and index != 0:
#             lst.append("_")
#         lst.append(char)
#
#     return ''.join(lst).lower()
#
#
# def uncamelize_dict(d):
#     return {uncamelize(k): v for k, v in d.items()}
#
#
# def camelize_dict(d):
#     return {camelize(k): v for k, v in d.items()}
#
#
# def get_request_json(is_uncamelize=True):
#     """
#     获取 json 传递参数
#     :return:
#     """
#     if request.method.lower() == 'get':
#         data = request.args.to_dict()
#     else:
#         if request.content_encoding and 'gzip' in request.content_encoding:
#             json_data = zlib.decompress(request.get_data())
#             data = json.loads(json_data)
#         else:
#             data = request.get_json(force=True, silent=True) or {}
#     if is_uncamelize:
#         data = {uncamelize(k): v for k, v in data.items()}
#
#     g.request_data = strip_value(data)
#
#     return g.request_data
#
#
# def get_params():
#     data = request.args.to_dict()
#     if request.method.lower() != 'get':
#         if request.content_encoding and 'gzip' in request.content_encoding:
#             json_data = zlib.decompress(request.get_data())
#             data.update(json.loads(json_data))
#         else:
#             data.update(request.get_json(force=True, silent=True) or {})
#     return data