python-benedict/benedict/serializers/query_string.py

37 lines
923 B
Python

# -*- coding: utf-8 -*-
from __future__ import absolute_import
from benedict.serializers.abstract import AbstractSerializer
try:
# python 3
from urllib.parse import urlencode
from urllib.parse import parse_qs
except ImportError:
# python 2
from urllib import urlencode
from urlparse import parse_qs
import re
class QueryStringSerializer(AbstractSerializer):
@staticmethod
def decode(s, **kwargs):
flat = kwargs.pop('flat', True)
qs_re = r'^(([\w\-\%\+]+\=[\w\-\%\+]*)+([\&]{1})?)+'
qs_pattern = re.compile(qs_re)
if qs_pattern.match(s):
data = parse_qs(s)
if flat:
data = {key: value[0] for key, value in data.items()}
return data
raise ValueError('Invalid query string: {}'.format(s))
@staticmethod
def encode(d, **kwargs):
data = urlencode(d, **kwargs)
return data