forked from Github-Mirrors/canaille
231 lines
7 KiB
Python
231 lines
7 KiB
Python
import ldap
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from flask import g
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class LDAPObjectHelper:
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_object_class_by_name = None
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_attribute_type_by_name = None
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may = None
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must = None
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base = None
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root_dn = None
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id = None
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def __init__(self, dn=None, **kwargs):
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self.attrs = {}
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self.changes = {}
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for k, v in kwargs.items():
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self.attrs[k] = [v] if not isinstance(v, list) else v
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self.attrs.setdefault("objectClass", self.objectClass)
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by_name = self.ocs_by_name()
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ocs = [by_name[name] for name in self.objectClass]
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self.may = []
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self.must = []
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for oc in ocs:
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self.may.extend(oc.may)
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self.must.extend(oc.must)
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def __repr__(self):
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return "<{} {}={}>".format(
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self.__class__.__name__, self.id, getattr(self, self.id)
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)
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@classmethod
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def ldap(cls):
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return g.ldap
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def keys(self):
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return self.must + self.may
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def __getitem__(self, item):
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return getattr(self, item)
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def update(self, **kwargs):
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for k, v in kwargs.items():
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self.__setattr__(k, v)
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def delete(self):
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self.ldap().delete_s(self.dn)
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@property
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def dn(self):
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if not self.id in self.attrs:
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return None
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return f"{self.id}={self.attrs[self.id][0]},{self.base},{self.root_dn}"
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@classmethod
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def initialize(cls, conn=None):
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conn = conn or cls.ldap()
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cls.ocs_by_name(conn)
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cls.attr_type_by_name(conn)
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acc = ""
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for organizationalUnit in cls.base.split(",")[::-1]:
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v = organizationalUnit.split("=")[1]
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dn = f"{organizationalUnit}{acc},{cls.root_dn}"
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acc = f",{organizationalUnit}"
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try:
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conn.add_s(
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dn,
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[
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("objectClass", [b"organizationalUnit"]),
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("ou", [v.encode("utf-8")]),
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],
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)
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except ldap.ALREADY_EXISTS:
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pass
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@classmethod
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def ocs_by_name(cls, conn=None):
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if cls._object_class_by_name:
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return cls._object_class_by_name
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conn = conn or cls.ldap()
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res = conn.search_s(
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"cn=subschema", ldap.SCOPE_BASE, "(objectclass=*)", ["*", "+"]
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)
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subschema_entry = res[0]
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subschema_subentry = ldap.cidict.cidict(subschema_entry[1])
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subschema = ldap.schema.SubSchema(subschema_subentry)
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object_class_oids = subschema.listall(ldap.schema.models.ObjectClass)
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cls._object_class_by_name = {}
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for oid in object_class_oids:
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oc = subschema.get_obj(ldap.schema.models.ObjectClass, oid)
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for name in oc.names:
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cls._object_class_by_name[name] = oc
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return cls._object_class_by_name
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@classmethod
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def attr_type_by_name(cls, conn=None):
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if cls._attribute_type_by_name:
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return cls._attribute_type_by_name
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conn = conn or cls.ldap()
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res = conn.search_s(
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"cn=subschema", ldap.SCOPE_BASE, "(objectclass=*)", ["*", "+"]
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)
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subschema_entry = res[0]
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subschema_subentry = ldap.cidict.cidict(subschema_entry[1])
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subschema = ldap.schema.SubSchema(subschema_subentry)
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attribute_type_oids = subschema.listall(ldap.schema.models.AttributeType)
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cls._attribute_type_by_name = {}
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for oid in attribute_type_oids:
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oc = subschema.get_obj(ldap.schema.models.AttributeType, oid)
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for name in oc.names:
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cls._attribute_type_by_name[name] = oc
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return cls._attribute_type_by_name
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def reload(self, conn=None):
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conn = conn or self.ldap()
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result = conn.search_s(self.dn, ldap.SCOPE_SUBTREE)
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self.changes = {}
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self.attrs = {
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k: [elt.decode("utf-8") for elt in v] for k, v in result[0][1].items()
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}
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def save(self, conn=None):
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conn = conn or self.ldap()
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try:
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match = bool(conn.search_s(self.dn, ldap.SCOPE_SUBTREE))
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except ldap.NO_SUCH_OBJECT:
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match = False
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if match:
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mods = {
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k: v
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for k, v in self.changes.items()
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if v and v[0] and self.attrs.get(k) != v
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}
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attributes = [
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(ldap.MOD_REPLACE, k, [elt.encode("utf-8") for elt in v])
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for k, v in mods.items()
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]
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conn.modify_s(self.dn, attributes)
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else:
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mods = {}
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for k, v in self.attrs.items():
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if v and v[0]:
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mods[k] = v
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for k, v in self.changes.items():
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if v and v[0]:
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mods[k] = v
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attributes = [
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(k, [elt.encode("utf-8") for elt in v]) for k, v in mods.items()
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]
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conn.add_s(self.dn, attributes)
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for k, v in self.changes.items():
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self.attrs[k] = v
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self.changes = {}
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@classmethod
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def get(cls, dn=None, filter=None, conn=None):
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conn = conn or cls.ldap()
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if dn is None:
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dn = f"{cls.base},{cls.root_dn}"
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elif "=" not in dn:
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dn = f"{cls.id}={dn},{cls.base},{cls.root_dn}"
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result = conn.search_s(dn, ldap.SCOPE_SUBTREE, filter)
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if not result:
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return None
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o = cls(
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**{k: [elt.decode("utf-8") for elt in v] for k, v in result[0][1].items()}
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)
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return o
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@classmethod
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def filter(cls, base=None, **kwargs):
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class_filter = "".join([f"(objectClass={oc})" for oc in cls.objectClass])
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arg_filter = ""
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for k, v in kwargs.items():
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if not isinstance(v, list):
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arg_filter += f"({k}={v})"
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elif len(v) == 1:
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arg_filter += f"({k}={v[0]})"
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else:
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arg_filter += "(|" + "".join([f"({k}={_v})" for _v in v]) + ")"
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ldapfilter = f"(&{class_filter}{arg_filter})"
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base = base or f"{cls.base},{cls.root_dn}"
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result = cls.ldap().search_s(base, ldap.SCOPE_SUBTREE, ldapfilter)
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return [
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cls(
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**{k: [elt.decode("utf-8") for elt in v] for k, v in args.items()},
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)
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for _, args in result
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]
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def __getattr__(self, name):
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if (not self.may or name not in self.may) and (
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not self.must or name not in self.must
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):
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return super().__getattribute__(name)
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if (
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not self.attr_type_by_name()
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or not self.attr_type_by_name()[name].single_value
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):
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return self.changes.get(name, self.attrs.get(name, []))
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return self.changes.get(name, self.attrs.get(name, [None]))[0]
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def __setattr__(self, name, value):
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super().__setattr__(name, value)
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if (self.may and name in self.may) or (self.must and name in self.must):
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if self.attr_type_by_name()[name].single_value:
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self.changes[name] = [value]
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else:
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self.changes[name] = value
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