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import os
from unittest import TestCase
import shutil
from subprocess import check_output
import ldb
TDB_PREFIX = "tdb://"
MDB_PREFIX = "mdb://"
def tempdir():
import tempfile
try:
dir_prefix = os.path.join(os.environ["SELFTEST_PREFIX"], "tmp")
except KeyError:
dir_prefix = None
return tempfile.mkdtemp(dir=dir_prefix)
# Check enabling and disabling GUID indexing works and that the database is
# repacked at version 2 if GUID indexing is enabled, or version 1 if disabled.
class GUIDIndexAndPackFormatTests(TestCase):
prefix = TDB_PREFIX
def setup_newdb(self):
self.testdir = tempdir()
self.filename = os.path.join(self.testdir,
"guidpackformattest.ldb")
url = self.prefix + self.filename
self.l = ldb.Ldb(url, options=["modules:"])
self.num_recs_added = 0
#guidindexpackv1.ldb is a pre-made database packed with version 1 format
#but with GUID indexing enabled, which is not allowed, so Samba should
#repack the database on the first transaction.
def setup_premade_v1_db(self):
db_name = "guidindexpackv1.ldb"
this_file_dir = os.path.dirname(os.path.abspath(__file__))
db_path = os.path.join(this_file_dir, "../", db_name)
self.testdir = tempdir()
self.filename = os.path.join(self.testdir, db_name)
shutil.copy(db_path, self.filename)
url = self.prefix + self.filename
self.l = ldb.Ldb(url, options=["modules:"])
self.num_recs_added = 10
def tearDown(self):
if hasattr(self, 'testdir'):
shutil.rmtree(self.testdir)
def add_one_rec(self):
ouuid = 0x0123456789abcdef + self.num_recs_added
ouuid_s = '0' + hex(ouuid)[2:]
dn = "OU=GUIDPFTEST{},DC=SAMBA,DC=ORG".format(self.num_recs_added)
rec = {"dn": dn, "objectUUID": ouuid_s, "distinguishedName": dn}
self.l.add(rec)
self.num_recs_added += 1
# Turn GUID back into a str for easier comparisons
return rec
def set_guid_indexing(self, enable=True):
modmsg = ldb.Message()
modmsg.dn = ldb.Dn(self.l, '@INDEXLIST')
attrs = {"@IDXGUID": [b"objectUUID"],
"@IDX_DN_GUID": [b"GUID"]}
for attr, val in attrs.items():
replace = ldb.FLAG_MOD_REPLACE
el = val if enable else []
el = ldb.MessageElement(elements=el, flags=replace, name=attr)
modmsg.add(el)
self.l.modify(modmsg)
# Parse out the comments above each record that ldbdump produces
# containing pack format version and KV level key for each record.
# Return all GUID index keys and the set of all unique pack formats.
def ldbdump_guid_keys_pack_formats(self):
dump = check_output(["bin/ldbdump", "-i", self.filename])
dump = dump.decode("utf-8")
dump = dump.split("\n")
comments = [s for s in dump if s.startswith("#")]
guid_key_tag = "# key: GUID="
guid_keys = {c[len(guid_key_tag):] for c in comments
if c.startswith(guid_key_tag)}
pack_format_tag = "# pack format: "
pack_formats = {c[len(pack_format_tag):] for c in comments
if c.startswith(pack_format_tag)}
pack_formats = [int(s, 16) for s in pack_formats]
return guid_keys, pack_formats
# Put the whole database in a dict so we can easily check the database
# hasn't changed
def get_database(self):
recs = self.l.search(base="", scope=ldb.SCOPE_SUBTREE, expression="")
db = dict()
for r in recs:
dn = str(r.dn)
self.assertNotIn(dn, db)
db[dn] = dict()
for k in r.keys():
k = str(k)
db[dn][k] = str(r.get(k))
return db
# Toggle GUID indexing on and off a few times, and check that when GUID
# indexing is enabled, the database is repacked to pack format V2, and
# when GUID indexing is disabled again, the database is repacked with
# pack format V1.
def toggle_guidindex_check_pack(self):
expect_db = self.get_database()
for enable in [False, False, True, False, True, True, False]:
pf = ldb.PACKING_FORMAT_V2 if enable else ldb.PACKING_FORMAT
self.set_guid_indexing(enable=enable)
guid_keys, pack_formats = self.ldbdump_guid_keys_pack_formats()
num_guid_keys = self.num_recs_added if enable else 0
self.assertEqual(len(guid_keys), num_guid_keys)
self.assertEqual(pack_formats, [pf])
self.assertEqual(self.get_database(), expect_db)
rec = self.add_one_rec()
expect_db[rec['dn']] = rec
guid_keys, pack_formats = self.ldbdump_guid_keys_pack_formats()
num_guid_keys = self.num_recs_added if enable else 0
self.assertEqual(len(guid_keys), num_guid_keys)
self.assertEqual(pack_formats, [pf])
self.assertEqual(self.get_database(), expect_db)
# Check a newly created database is initially packed at V1, then is
# repacked at V2 when GUID indexing is enabled.
def test_repack(self):
self.setup_newdb()
guid_keys, pack_formats = self.ldbdump_guid_keys_pack_formats()
self.assertEqual(len(guid_keys), 0)
self.assertEqual(pack_formats, [ldb.PACKING_FORMAT])
self.assertEqual(self.get_database(), {})
self.l.add({"dn": "@ATTRIBUTES"})
guid_keys, pack_formats = self.ldbdump_guid_keys_pack_formats()
self.assertEqual(len(guid_keys), 0)
self.assertEqual(pack_formats, [ldb.PACKING_FORMAT])
self.assertEqual(self.get_database(), {})
self.l.add({"dn": "@INDEXLIST",
"@IDXONE": [b"1"],
"@IDXGUID": [b"objectUUID"],
"@IDX_DN_GUID": [b"GUID"]})
guid_keys, pack_formats = self.ldbdump_guid_keys_pack_formats()
self.assertEqual(len(guid_keys), 0)
self.assertEqual(pack_formats, [ldb.PACKING_FORMAT_V2])
self.assertEqual(self.get_database(), {})
rec = self.add_one_rec()
expect_db = {rec["dn"]: rec}
guid_keys, pack_formats = self.ldbdump_guid_keys_pack_formats()
self.assertEqual(len(guid_keys), 1)
self.assertEqual(pack_formats, [ldb.PACKING_FORMAT_V2])
self.assertEqual(self.get_database(), expect_db)
self.toggle_guidindex_check_pack()
# Check a database with V1 format with GUID indexing enabled is repacked
# with version 2 format.
def test_guid_indexed_v1_db(self):
self.setup_premade_v1_db()
expect_db = self.get_database()
guid_keys, pack_formats = self.ldbdump_guid_keys_pack_formats()
self.assertEqual(len(guid_keys), self.num_recs_added)
self.assertEqual(pack_formats, [ldb.PACKING_FORMAT])
self.assertEqual(self.get_database(), expect_db)
rec = self.add_one_rec()
expect_db[rec['dn']] = rec
guid_keys, pack_formats = self.ldbdump_guid_keys_pack_formats()
self.assertEqual(len(guid_keys), self.num_recs_added)
self.assertEqual(pack_formats, [ldb.PACKING_FORMAT_V2])
self.assertEqual(self.get_database(), expect_db)
self.toggle_guidindex_check_pack()
if __name__ == '__main__':
import unittest
unittest.TestProgram()
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