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#!/usr/bin/env python3
# Unix SMB/CIFS implementation.
# Copyright (C) Andrew Tridgell 2009
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
"""Tests the possibleInferiors generation in the schema_fsmo ldb module"""
import optparse
import sys
# Find right directory when running from source tree
sys.path.insert(0, "bin/python")
from samba import getopt as options, Ldb
import ldb
parser = optparse.OptionParser("possibleinferiors.py <URL> [<CLASS>]")
sambaopts = options.SambaOptions(parser)
parser.add_option_group(sambaopts)
credopts = options.CredentialsOptions(parser)
parser.add_option_group(credopts)
parser.add_option_group(options.VersionOptions(parser))
parser.add_option("--wspp", action="store_true")
opts, args = parser.parse_args()
if len(args) < 1:
parser.print_usage()
sys.exit(1)
url = args[0]
if (len(args) > 1):
objectclass = args[1]
else:
objectclass = None
def uniq_list(alist):
"""return a unique list"""
set = {}
return [set.setdefault(e, e) for e in alist if e not in set]
lp_ctx = sambaopts.get_loadparm()
creds = credopts.get_credentials(lp_ctx)
ldb_options = []
# use 'paged_search' module when connecting remotely
if url.lower().startswith("ldap://"):
ldb_options = ["modules:paged_searches"]
db = Ldb(url, credentials=creds, lp=lp_ctx, options=ldb_options)
# get the rootDSE
res = db.search(base="", expression="",
scope=ldb.SCOPE_BASE,
attrs=["schemaNamingContext"])
rootDse = res[0]
schema_base = rootDse["schemaNamingContext"][0]
def possible_inferiors_search(db, oc):
"""return the possible inferiors via a search for the possibleInferiors attribute"""
res = db.search(base=schema_base,
expression=("ldapDisplayName=%s" % oc),
attrs=["possibleInferiors"])
poss = []
if len(res) == 0 or res[0].get("possibleInferiors") is None:
return poss
for item in res[0]["possibleInferiors"]:
poss.append(str(item))
poss = uniq_list(poss)
poss.sort()
return poss
# see [MS-ADTS] section 3.1.1.4.5.21
# and section 3.1.1.4.2 for this algorithm
# !systemOnly=TRUE
# !objectClassCategory=2
# !objectClassCategory=3
def supclasses(classinfo, oc):
list = []
if oc == "top":
return list
if classinfo[oc].get("SUPCLASSES") is not None:
return classinfo[oc]["SUPCLASSES"]
res = classinfo[oc]["subClassOf"]
for r in res:
list.append(r)
list.extend(supclasses(classinfo, r))
classinfo[oc]["SUPCLASSES"] = list
return list
def auxclasses(classinfo, oclist):
list = []
if oclist == []:
return list
for oc in oclist:
if classinfo[oc].get("AUXCLASSES") is not None:
list.extend(classinfo[oc]["AUXCLASSES"])
else:
list2 = []
list2.extend(classinfo[oc]["systemAuxiliaryClass"])
list2.extend(auxclasses(classinfo, classinfo[oc]["systemAuxiliaryClass"]))
list2.extend(classinfo[oc]["auxiliaryClass"])
list2.extend(auxclasses(classinfo, classinfo[oc]["auxiliaryClass"]))
list2.extend(auxclasses(classinfo, supclasses(classinfo, oc)))
classinfo[oc]["AUXCLASSES"] = list2
list.extend(list2)
return list
def subclasses(classinfo, oclist):
list = []
for oc in oclist:
list.extend(classinfo[oc]["SUBCLASSES"])
return list
def posssuperiors(classinfo, oclist):
list = []
for oc in oclist:
if classinfo[oc].get("POSSSUPERIORS") is not None:
list.extend(classinfo[oc]["POSSSUPERIORS"])
else:
list2 = []
list2.extend(classinfo[oc]["systemPossSuperiors"])
list2.extend(classinfo[oc]["possSuperiors"])
list2.extend(posssuperiors(classinfo, supclasses(classinfo, oc)))
if opts.wspp:
# the WSPP docs suggest we should do this:
list2.extend(posssuperiors(classinfo, auxclasses(classinfo, [oc])))
else:
# but testing against w2k3 and w2k8 shows that we need to do this instead
list2.extend(subclasses(classinfo, list2))
classinfo[oc]["POSSSUPERIORS"] = list2
list.extend(list2)
return list
def pull_classinfo(db):
"""At startup we build a classinfo[] dictionary that holds all the information needed to construct the possible inferiors"""
classinfo = {}
res = db.search(base=schema_base,
expression="objectclass=classSchema",
attrs=["ldapDisplayName", "systemOnly", "objectClassCategory",
"possSuperiors", "systemPossSuperiors",
"auxiliaryClass", "systemAuxiliaryClass", "subClassOf"])
for r in res:
name = str(r["ldapDisplayName"][0])
classinfo[name] = {}
if str(r["systemOnly"]) == "TRUE":
classinfo[name]["systemOnly"] = True
else:
classinfo[name]["systemOnly"] = False
if r.get("objectClassCategory"):
classinfo[name]["objectClassCategory"] = int(r["objectClassCategory"][0])
else:
classinfo[name]["objectClassCategory"] = 0
for a in ["possSuperiors", "systemPossSuperiors",
"auxiliaryClass", "systemAuxiliaryClass",
"subClassOf"]:
classinfo[name][a] = []
if r.get(a):
for i in r[a]:
classinfo[name][a].append(str(i))
# build a list of subclasses for each class
def subclasses_recurse(subclasses, oc):
list = subclasses[oc]
for c in list:
list.extend(subclasses_recurse(subclasses, c))
return list
subclasses = {}
for oc in classinfo:
subclasses[oc] = []
for oc in classinfo:
for c in classinfo[oc]["subClassOf"]:
if not c == oc:
subclasses[c].append(oc)
for oc in classinfo:
classinfo[oc]["SUBCLASSES"] = uniq_list(subclasses_recurse(subclasses, oc))
return classinfo
def is_in_list(list, c):
for a in list:
if c == a:
return True
return False
def possible_inferiors_constructed(db, classinfo, c):
list = []
for oc in classinfo:
superiors = posssuperiors(classinfo, [oc])
if (is_in_list(superiors, c) and
classinfo[oc]["systemOnly"] == False and
classinfo[oc]["objectClassCategory"] != 2 and
classinfo[oc]["objectClassCategory"] != 3):
list.append(oc)
list = uniq_list(list)
list.sort()
return list
def test_class(db, classinfo, oc):
"""test to see if one objectclass returns the correct possibleInferiors"""
print("test: objectClass.%s" % oc)
poss1 = possible_inferiors_search(db, oc)
poss2 = possible_inferiors_constructed(db, classinfo, oc)
if poss1 != poss2:
print("failure: objectClass.%s [" % oc)
print("Returned incorrect list for objectclass %s" % oc)
print("search: %s" % poss1)
print("constructed: %s" % poss2)
for i in range(0, min(len(poss1), len(poss2))):
print("%30s %30s" % (poss1[i], poss2[i]))
print("]")
sys.exit(1)
else:
print("success: objectClass.%s" % oc)
def get_object_classes(db):
"""return a list of all object classes"""
list = []
for item in classinfo:
list.append(item)
return list
classinfo = pull_classinfo(db)
if objectclass is None:
for oc in get_object_classes(db):
test_class(db, classinfo, oc)
else:
test_class(db, classinfo, objectclass)
print("Lists match OK")
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