def from_urlencoded(self, urlencoded, **kwargs):
"""
Starting with a string of the application/x-www-form-urlencoded format
this method creates a class instance
:param urlencoded: The string
:return: A class instance or raise an exception on error
"""
# parse_qs returns a dictionary with keys and values. The values are
# always lists even if there is only one value in the list.
# keys only appears once.
if isinstance(urlencoded, str):
pass
elif isinstance(urlencoded, list):
urlencoded = urlencoded[0]
_spec = self.c_param
_info = parse_qs(urlencoded)
if len(urlencoded) and _info == {}:
raise FormatError('Wrong format')
for key, val in _info.items():
try:
(typ, _, _, _deser, _) = _spec[key]
except KeyError:
try:
_key = key.split("#")[0]
(typ, _, _, _deser, _) = _spec[_key]
except (ValueError, KeyError):
try:
(typ, _, _, _deser, _) = _spec['*']
except KeyError:
if len(val) == 1:
val = val[0]
self._dict[key] = val
continue
if isinstance(typ, list):
if _deser:
self._dict[key] = _deser(val[0], "urlencoded")
else:
self._dict[key] = val
else: # must be single value
if len(val) == 1:
if _deser:
self._dict[key] = _deser(val[0], "urlencoded")
elif isinstance(val[0], typ):
self._dict[key] = val[0]
else:
self._dict[key] = val[0]
else:
raise TooManyValues('{}'.format(key))
return self
def deserialize_from_one_of(val, msgtype, sformat):
if sformat in ["dict", "json"]:
flist = ["json", "urlencoded"]
if not isinstance(val, str):
val = json.dumps(val)
else:
flist = ["urlencoded", "json"]
for _format in flist:
try:
return msgtype().deserialize(val, _format)
except FormatError:
pass
raise FormatError("Unexpected format")
def deserialize(self, info, method="urlencoded", **kwargs):
"""
Convert from an external representation to an internal.
:param info: The input
:param method: The method used to deserialize the info
:param kwargs: extra Keyword arguments
:return: In the normal case the Message instance
"""
try:
func = getattr(self, "from_%s" % method)
except AttributeError:
raise FormatError("Unknown serialization method (%s)" % method)
else:
return func(info, **kwargs)