130 lines
2.8 KiB
Python
130 lines
2.8 KiB
Python
"""
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This is a convenience wrapper for dictionaries
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returned from LDAP servers containing attribute
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names of variable case.
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See https://www.python-ldap.org/ for details.
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"""
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import warnings
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from ldap.compat import MutableMapping
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from ldap import __version__
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class cidict(MutableMapping):
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"""
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Case-insensitive but case-respecting dictionary.
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"""
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__slots__ = ('_keys', '_data')
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def __init__(self, default=None):
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self._keys = {}
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self._data = {}
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if default:
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self.update(default)
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# MutableMapping abstract methods
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def __getitem__(self, key):
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return self._data[key.lower()]
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def __setitem__(self, key, value):
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lower_key = key.lower()
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self._keys[lower_key] = key
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self._data[lower_key] = value
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def __delitem__(self, key):
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lower_key = key.lower()
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del self._keys[lower_key]
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del self._data[lower_key]
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def __iter__(self):
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return iter(self._keys.values())
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def __len__(self):
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return len(self._keys)
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# Specializations for performance
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def __contains__(self, key):
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return key.lower() in self._keys
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def clear(self):
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self._keys.clear()
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self._data.clear()
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# Backwards compatibility
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def has_key(self, key):
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"""Compatibility with python-ldap 2.x"""
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return key in self
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@property
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def data(self):
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"""Compatibility with older IterableUserDict-based implementation"""
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warnings.warn(
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'ldap.cidict.cidict.data is an internal attribute; it may be ' +
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'removed at any time',
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category=DeprecationWarning,
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stacklevel=2,
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)
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return self._data
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def strlist_minus(a,b):
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"""
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Return list of all items in a which are not in b (a - b).
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a,b are supposed to be lists of case-insensitive strings.
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"""
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warnings.warn(
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"strlist functions are deprecated and will be removed in 3.4",
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category=DeprecationWarning,
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stacklevel=2,
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)
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temp = cidict()
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for elt in b:
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temp[elt] = elt
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result = [
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elt
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for elt in a
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if elt not in temp
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]
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return result
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def strlist_intersection(a,b):
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"""
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Return intersection of two lists of case-insensitive strings a,b.
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"""
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warnings.warn(
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"strlist functions are deprecated and will be removed in 3.4",
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category=DeprecationWarning,
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stacklevel=2,
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)
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temp = cidict()
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for elt in a:
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temp[elt] = elt
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result = [
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temp[elt]
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for elt in b
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if elt in temp
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]
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return result
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def strlist_union(a,b):
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"""
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Return union of two lists of case-insensitive strings a,b.
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"""
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warnings.warn(
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"strlist functions are deprecated and will be removed in 3.4",
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category=DeprecationWarning,
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stacklevel=2,
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)
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temp = cidict()
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for elt in a:
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temp[elt] = elt
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for elt in b:
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temp[elt] = elt
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return temp.values()
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