/usr/lib/python2.7/dist-packages/formalchemy/multidict.py is in python-formalchemy 1.4.2-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 | # -*- coding: utf-8 -*-
import cgi
import copy
from UserDict import DictMixin
from webob.multidict import MultiDict
class UnicodeMultiDict(DictMixin):
"""
A MultiDict wrapper that decodes returned values to unicode on the
fly. Decoding is not applied to assigned values.
The key/value contents are assumed to be ``str``/``strs`` or
``str``/``FieldStorages`` (as is returned by the ``paste.request.parse_``
functions).
Can optionally also decode keys when the ``decode_keys`` argument is
True.
``FieldStorage`` instances are cloned, and the clone's ``filename``
variable is decoded. Its ``name`` variable is decoded when ``decode_keys``
is enabled.
"""
def __init__(self, multi, encoding=None, errors='strict',
decode_keys=False):
self.multi = multi
if encoding is None:
encoding = sys.getdefaultencoding()
self.encoding = encoding
self.errors = errors
self.decode_keys = decode_keys
def _decode_key(self, key):
if self.decode_keys:
try:
key = key.decode(self.encoding, self.errors)
except AttributeError:
pass
return key
def _encode_key(self, key):
if self.decode_keys and isinstance(key, unicode):
return key.encode(self.encoding, self.errors)
return key
def _decode_value(self, value):
"""
Decode the specified value to unicode. Assumes value is a ``str`` or
`FieldStorage`` object.
``FieldStorage`` objects are specially handled.
"""
if isinstance(value, cgi.FieldStorage):
# decode FieldStorage's field name and filename
value = copy.copy(value)
if self.decode_keys:
if not isinstance(value.name, unicode):
value.name = value.name.decode(self.encoding, self.errors)
if value.filename:
if not isinstance(value.filename, unicode):
value.filename = value.filename.decode(self.encoding,
self.errors)
elif not isinstance(value, unicode):
try:
value = value.decode(self.encoding, self.errors)
except AttributeError:
pass
return value
def _encode_value(self, value):
if isinstance(value, unicode):
value = value.encode(self.encoding, self.errors)
return value
def __getitem__(self, key):
return self._decode_value(self.multi.__getitem__(self._encode_key(key)))
def __setitem__(self, key, value):
self.multi.__setitem__(self._encode_key(key), self._encode_value(value))
def add(self, key, value):
"""
Add the key and value, not overwriting any previous value.
"""
self.multi.add(self._encode_key(key), self._encode_value(value))
def getall(self, key):
"""
Return a list of all values matching the key (may be an empty list)
"""
return map(self._decode_value, self.multi.getall(self._encode_key(key)))
def getone(self, key):
"""
Get one value matching the key, raising a KeyError if multiple
values were found.
"""
return self._decode_value(self.multi.getone(self._encode_key(key)))
def mixed(self):
"""
Returns a dictionary where the values are either single
values, or a list of values when a key/value appears more than
once in this dictionary. This is similar to the kind of
dictionary often used to represent the variables in a web
request.
"""
unicode_mixed = {}
for key, value in self.multi.mixed().iteritems():
if isinstance(value, list):
value = [self._decode_value(value) for value in value]
else:
value = self._decode_value(value)
unicode_mixed[self._decode_key(key)] = value
return unicode_mixed
def dict_of_lists(self):
"""
Returns a dictionary where each key is associated with a
list of values.
"""
unicode_dict = {}
for key, value in self.multi.dict_of_lists().iteritems():
value = [self._decode_value(value) for value in value]
unicode_dict[self._decode_key(key)] = value
return unicode_dict
def __delitem__(self, key):
self.multi.__delitem__(self._encode_key(key))
def __contains__(self, key):
return self.multi.__contains__(self._encode_key(key))
has_key = __contains__
def clear(self):
self.multi.clear()
def copy(self):
return UnicodeMultiDict(self.multi.copy(), self.encoding, self.errors)
def setdefault(self, key, default=None):
return self._decode_value(
self.multi.setdefault(self._encode_key(key),
self._encode_value(default)))
def pop(self, key, *args):
return self._decode_value(self.multi.pop(self._encode_key(key), *args))
def popitem(self):
k, v = self.multi.popitem()
return (self._decode_key(k), self._decode_value(v))
def __repr__(self):
items = map('(%r, %r)'.__mod__, _hide_passwd(self.iteritems()))
return '%s([%s])' % (self.__class__.__name__, ', '.join(items))
def __len__(self):
return self.multi.__len__()
##
## All the iteration:
##
def keys(self):
return [self._decode_key(k) for k in self.multi.iterkeys()]
def iterkeys(self):
for k in self.multi.iterkeys():
yield self._decode_key(k)
__iter__ = iterkeys
def items(self):
return [(self._decode_key(k), self._decode_value(v))
for k, v in self.multi.iteritems()]
def iteritems(self):
for k, v in self.multi.iteritems():
yield (self._decode_key(k), self._decode_value(v))
def values(self):
return [self._decode_value(v) for v in self.multi.itervalues()]
def itervalues(self):
for v in self.multi.itervalues():
yield self._decode_value(v)
def _hide_passwd(items):
for k, v in items:
if ('password' in k
or 'passwd' in k
or 'pwd' in k
):
yield k, '******'
else:
yield k, v
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