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-rw-r--r--source4/dsdb/tests/python/vlv.py1765
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diff --git a/source4/dsdb/tests/python/vlv.py b/source4/dsdb/tests/python/vlv.py
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+++ b/source4/dsdb/tests/python/vlv.py
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+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# Originally based on ./sam.py
+import optparse
+import sys
+import os
+import base64
+import random
+import re
+
+sys.path.insert(0, "bin/python")
+import samba
+from samba.tests.subunitrun import SubunitOptions, TestProgram
+
+import samba.getopt as options
+
+from samba.auth import system_session
+import ldb
+from samba.samdb import SamDB
+from samba.common import get_bytes
+from samba.common import get_string
+
+import time
+
+parser = optparse.OptionParser("vlv.py [options] <host>")
+sambaopts = options.SambaOptions(parser)
+parser.add_option_group(sambaopts)
+parser.add_option_group(options.VersionOptions(parser))
+# use command line creds if available
+credopts = options.CredentialsOptions(parser)
+parser.add_option_group(credopts)
+subunitopts = SubunitOptions(parser)
+parser.add_option_group(subunitopts)
+
+parser.add_option('--elements', type='int', default=20,
+ help="use this many elements in the tests")
+
+parser.add_option('--delete-in-setup', action='store_true',
+ help="cleanup in next setup rather than teardown")
+
+parser.add_option('--skip-attr-regex',
+ help="ignore attributes matching this regex")
+
+opts, args = parser.parse_args()
+
+if len(args) < 1:
+ parser.print_usage()
+ sys.exit(1)
+
+host = args[0]
+
+lp = sambaopts.get_loadparm()
+creds = credopts.get_credentials(lp)
+
+N_ELEMENTS = opts.elements
+
+
+class VlvTestException(Exception):
+ pass
+
+
+def encode_vlv_control(critical=1,
+ before=0, after=0,
+ offset=None,
+ gte=None,
+ n=0, cookie=None):
+
+ s = "vlv:%d:%d:%d:" % (critical, before, after)
+
+ if offset is not None:
+ m = "%d:%d" % (offset, n)
+ elif b':' in gte or b'\x00' in gte:
+ gte = get_string(base64.b64encode(gte))
+ m = "base64>=%s" % gte
+ else:
+ m = ">=%s" % get_string(gte)
+
+ if cookie is None:
+ return s + m
+
+ return s + m + ':' + cookie
+
+
+def get_cookie(controls, expected_n=None):
+ """Get the cookie, STILL base64 encoded, or raise ValueError."""
+ for c in list(controls):
+ cstr = str(c)
+ if cstr.startswith('vlv_resp'):
+ head, n, _, cookie = cstr.rsplit(':', 3)
+ if expected_n is not None and int(n) != expected_n:
+ raise ValueError("Expected %s items, server said %s" %
+ (expected_n, n))
+ return cookie
+ raise ValueError("there is no VLV response")
+
+
+class TestsWithUserOU(samba.tests.TestCase):
+
+ def create_user(self, i, n, prefix='vlvtest', suffix='', attrs=None):
+ name = "%s%d%s" % (prefix, i, suffix)
+ user = {
+ 'cn': name,
+ "objectclass": "user",
+ 'givenName': "abcdefghijklmnopqrstuvwxyz"[i % 26],
+ "roomNumber": "%sbc" % (n - i),
+ "carLicense": "后来经",
+ "facsimileTelephoneNumber": name,
+ "employeeNumber": "%s%sx" % (abs(i * (99 - i)), '\n' * (i & 255)),
+ "accountExpires": "%s" % (10 ** 9 + 1000000 * i),
+ "msTSExpireDate4": "19%02d0101010000.0Z" % (i % 100),
+ "flags": str(i * (n - i)),
+ "serialNumber": "abc %s%s%s" % ('AaBb |-/'[i & 7],
+ ' 3z}'[i & 3],
+ '"@'[i & 1],),
+ }
+
+ # _user_broken_attrs tests are broken due to problems outside
+ # of VLV.
+ _user_broken_attrs = {
+ # Sort doesn't look past a NUL byte.
+ "photo": "\x00%d" % (n - i),
+ "audio": "%sn octet string %s%s ♫♬\x00lalala" % ('Aa'[i & 1],
+ chr(i & 255), i),
+ "displayNamePrintable": "%d\x00%c" % (i, i & 255),
+ "adminDisplayName": "%d\x00b" % (n - i),
+ "title": "%d%sb" % (n - i, '\x00' * i),
+ "comment": "Favourite colour is %d" % (n % (i + 1)),
+
+ # Names that vary only in case. Windows returns
+ # equivalent addresses in the order they were put
+ # in ('a st', 'A st',...).
+ "street": "%s st" % (chr(65 | (i & 14) | ((i & 1) * 32))),
+ }
+
+ if attrs is not None:
+ user.update(attrs)
+
+ user['dn'] = "cn=%s,%s" % (user['cn'], self.ou)
+
+ if opts.skip_attr_regex:
+ match = re.compile(opts.skip_attr_regex).search
+ for k in user.keys():
+ if match(k):
+ del user[k]
+
+ self.users.append(user)
+ self.ldb.add(user)
+ return user
+
+ def setUp(self):
+ super(TestsWithUserOU, self).setUp()
+ self.ldb = SamDB(host, credentials=creds,
+ session_info=system_session(lp), lp=lp)
+ self.ldb_ro = self.ldb
+ self.base_dn = self.ldb.domain_dn()
+ self.tree_dn = "ou=vlvtesttree,%s" % self.base_dn
+ self.ou = "ou=vlvou,%s" % self.tree_dn
+ if opts.delete_in_setup:
+ try:
+ self.ldb.delete(self.tree_dn, ['tree_delete:1'])
+ except ldb.LdbError as e:
+ print("tried deleting %s, got error %s" % (self.tree_dn, e))
+ self.ldb.add({
+ "dn": self.tree_dn,
+ "objectclass": "organizationalUnit"})
+ self.ldb.add({
+ "dn": self.ou,
+ "objectclass": "organizationalUnit"})
+
+ self.users = []
+ for i in range(N_ELEMENTS):
+ self.create_user(i, N_ELEMENTS)
+
+ attrs = self.users[0].keys()
+ self.binary_sorted_keys = ['audio',
+ 'photo',
+ "msTSExpireDate4",
+ 'serialNumber',
+ "displayNamePrintable"]
+
+ self.numeric_sorted_keys = ['flags',
+ 'accountExpires']
+
+ self.timestamp_keys = ['msTSExpireDate4']
+
+ self.int64_keys = set(['accountExpires'])
+
+ self.locale_sorted_keys = [x for x in attrs if
+ x not in (self.binary_sorted_keys +
+ self.numeric_sorted_keys)]
+
+ # don't try spaces, etc in cn
+ self.delicate_keys = ['cn']
+
+ def tearDown(self):
+ super(TestsWithUserOU, self).tearDown()
+ if not opts.delete_in_setup:
+ self.ldb.delete(self.tree_dn, ['tree_delete:1'])
+
+
+class VLVTestsBase(TestsWithUserOU):
+
+ # Run a vlv search and return important fields of the response control
+ def vlv_search(self, attr, expr, cookie="", after_count=0, offset=1):
+ sort_ctrl = "server_sort:1:0:%s" % attr
+ ctrl = "vlv:1:0:%d:%d:0" % (after_count, offset)
+ if cookie:
+ ctrl += ":" + cookie
+
+ res = self.ldb_ro.search(self.ou,
+ expression=expr,
+ scope=ldb.SCOPE_ONELEVEL,
+ attrs=[attr],
+ controls=[ctrl, sort_ctrl])
+ results = [str(x[attr][0]) for x in res]
+
+ ctrls = [str(c) for c in res.controls if
+ str(c).startswith('vlv')]
+ self.assertEqual(len(ctrls), 1)
+
+ spl = ctrls[0].rsplit(':')
+ cookie = ""
+ if len(spl) == 6:
+ cookie = spl[-1]
+
+ return results, cookie
+
+
+class VLVTestsRO(VLVTestsBase):
+ def test_vlv_simple_double_run(self):
+ """Do the simplest possible VLV query to confirm if VLV
+ works at all. Useful for showing VLV as a whole works
+ on Global Catalog (for example)"""
+ attr = 'roomNumber'
+ expr = "(objectclass=user)"
+
+ # Start new search
+ full_results, cookie = self.vlv_search(attr, expr,
+ after_count=len(self.users))
+
+ results, cookie = self.vlv_search(attr, expr, cookie=cookie,
+ after_count=len(self.users))
+ expected_results = full_results
+ self.assertEqual(results, expected_results)
+
+
+class VLVTestsGC(VLVTestsRO):
+ def setUp(self):
+ super(VLVTestsRO, self).setUp()
+ self.ldb_ro = SamDB(host + ":3268", credentials=creds,
+ session_info=system_session(lp), lp=lp)
+
+
+class VLVTests(VLVTestsBase):
+ def get_full_list(self, attr, include_cn=False):
+ """Fetch the whole list sorted on the attribute, using the VLV.
+ This way you get a VLV cookie."""
+ n_users = len(self.users)
+ sort_control = "server_sort:1:0:%s" % attr
+ half_n = n_users // 2
+ vlv_search = "vlv:1:%d:%d:%d:0" % (half_n, half_n, half_n + 1)
+ attrs = [attr]
+ if include_cn:
+ attrs.append('cn')
+ res = self.ldb.search(self.ou,
+ scope=ldb.SCOPE_ONELEVEL,
+ attrs=attrs,
+ controls=[sort_control,
+ vlv_search])
+ if include_cn:
+ full_results = [(str(x[attr][0]), str(x['cn'][0])) for x in res]
+ else:
+ full_results = [str(x[attr][0]).lower() for x in res]
+ controls = res.controls
+ return full_results, controls, sort_control
+
+ def get_expected_order(self, attr, expression=None):
+ """Fetch the whole list sorted on the attribute, using sort only."""
+ sort_control = "server_sort:1:0:%s" % attr
+ res = self.ldb.search(self.ou,
+ scope=ldb.SCOPE_ONELEVEL,
+ expression=expression,
+ attrs=[attr],
+ controls=[sort_control])
+ results = [x[attr][0] for x in res]
+ return results
+
+ def delete_user(self, user):
+ self.ldb.delete(user['dn'])
+ del self.users[self.users.index(user)]
+
+ def get_gte_tests_and_order(self, attr, expression=None):
+ expected_order = self.get_expected_order(attr, expression=expression)
+ gte_users = []
+ if attr in self.delicate_keys:
+ gte_keys = [
+ '3',
+ 'abc',
+ '¹',
+ 'ŋđ¼³ŧ“«đð',
+ '桑巴',
+ ]
+ elif attr in self.timestamp_keys:
+ gte_keys = [
+ '18560101010000.0Z',
+ '19140103010000.0Z',
+ '19560101010010.0Z',
+ '19700101000000.0Z',
+ '19991231211234.3Z',
+ '20061111211234.0Z',
+ '20390901041234.0Z',
+ '25560101010000.0Z',
+ ]
+ elif attr not in self.numeric_sorted_keys:
+ gte_keys = [
+ '3',
+ 'abc',
+ ' ',
+ '!@#!@#!',
+ 'kōkako',
+ '¹',
+ 'ŋđ¼³ŧ“«đð',
+ '\n\t\t',
+ '桑巴',
+ 'zzzz',
+ ]
+ if expected_order:
+ gte_keys.append(expected_order[len(expected_order) // 2] + b' tail')
+
+ else:
+ # "numeric" means positive integers
+ # doesn't work with -1, 3.14, ' 3', '9' * 20
+ gte_keys = ['3',
+ '1' * 10,
+ '1',
+ '9' * 7,
+ '0']
+
+ if attr in self.int64_keys:
+ gte_keys += ['3' * 12, '71' * 8]
+
+ for i, x in enumerate(gte_keys):
+ user = self.create_user(i, N_ELEMENTS,
+ prefix='gte',
+ attrs={attr: x})
+ gte_users.append(user)
+
+ gte_order = self.get_expected_order(attr)
+ for user in gte_users:
+ self.delete_user(user)
+
+ # for sanity's sake
+ expected_order_2 = self.get_expected_order(attr, expression=expression)
+ self.assertEqual(expected_order, expected_order_2)
+
+ # Map gte tests to indexes in expected order. This will break
+ # if gte_order and expected_order are differently ordered (as
+ # it should).
+ gte_map = {}
+
+ # index to the first one with each value
+ index_map = {}
+ for i, k in enumerate(expected_order):
+ if k not in index_map:
+ index_map[k] = i
+
+ keys = []
+ for k in gte_order:
+ if k in index_map:
+ i = index_map[k]
+ gte_map[k] = i
+ for k in keys:
+ gte_map[k] = i
+ keys = []
+ else:
+ keys.append(k)
+
+ for k in keys:
+ gte_map[k] = len(expected_order)
+
+ if False:
+ print("gte_map:")
+ for k in gte_order:
+ print(" %10s => %10s" % (k, gte_map[k]))
+
+ return gte_order, expected_order, gte_map
+
+ def assertCorrectResults(self, results, expected_order,
+ offset, before, after):
+ """A helper to calculate offsets correctly and say as much as possible
+ when something goes wrong."""
+
+ start = max(offset - before - 1, 0)
+ end = offset + after
+ expected_results = expected_order[start: end]
+
+ # if it is a tuple with the cn, drop the cn
+ if expected_results and isinstance(expected_results[0], tuple):
+ expected_results = [x[0] for x in expected_results]
+
+ if expected_results == results:
+ return
+
+ if expected_order is not None:
+ print("expected order: %s" % expected_order[:20])
+ if len(expected_order) > 20:
+ print("... and %d more not shown" % (len(expected_order) - 20))
+
+ print("offset %d before %d after %d" % (offset, before, after))
+ print("start %d end %d" % (start, end))
+ print("expected: %s" % expected_results)
+ print("got : %s" % results)
+ self.assertEqual(expected_results, results)
+
+ def test_server_vlv_with_cookie(self):
+ attrs = [x for x in self.users[0].keys() if x not in
+ ('dn', 'objectclass')]
+ for attr in attrs:
+ expected_order = self.get_expected_order(attr)
+ sort_control = "server_sort:1:0:%s" % attr
+ res = None
+ n = len(self.users)
+ for before in [10, 0, 3, 1, 4, 5, 2]:
+ for after in [0, 3, 1, 4, 5, 2, 7]:
+ for offset in range(max(1, before - 2),
+ min(n - after + 2, n)):
+ if res is None:
+ vlv_search = "vlv:1:%d:%d:%d:0" % (before, after,
+ offset)
+ else:
+ cookie = get_cookie(res.controls, n)
+ vlv_search = ("vlv:1:%d:%d:%d:%s:%s" %
+ (before, after, offset, n,
+ cookie))
+
+ res = self.ldb.search(self.ou,
+ scope=ldb.SCOPE_ONELEVEL,
+ attrs=[attr],
+ controls=[sort_control,
+ vlv_search])
+
+ results = [x[attr][0] for x in res]
+
+ self.assertCorrectResults(results, expected_order,
+ offset, before, after)
+
+ def run_index_tests_with_expressions(self, expressions):
+ # Here we don't test every before/after combination.
+ attrs = [x for x in self.users[0].keys() if x not in
+ ('dn', 'objectclass')]
+ for attr in attrs:
+ for expression in expressions:
+ expected_order = self.get_expected_order(attr, expression)
+ sort_control = "server_sort:1:0:%s" % attr
+ res = None
+ n = len(expected_order)
+ for before in range(0, 11):
+ after = before
+ for offset in range(max(1, before - 2),
+ min(n - after + 2, n)):
+ if res is None:
+ vlv_search = "vlv:1:%d:%d:%d:0" % (before, after,
+ offset)
+ else:
+ cookie = get_cookie(res.controls)
+ vlv_search = ("vlv:1:%d:%d:%d:%s:%s" %
+ (before, after, offset, n,
+ cookie))
+
+ res = self.ldb.search(self.ou,
+ expression=expression,
+ scope=ldb.SCOPE_ONELEVEL,
+ attrs=[attr],
+ controls=[sort_control,
+ vlv_search])
+
+ results = [x[attr][0] for x in res]
+
+ self.assertCorrectResults(results, expected_order,
+ offset, before, after)
+
+ def test_server_vlv_with_expression(self):
+ """What happens when we run the VLV with an expression?"""
+ expressions = ["(objectClass=*)",
+ "(cn=%s)" % self.users[-1]['cn'],
+ "(roomNumber=%s)" % self.users[0]['roomNumber'],
+ ]
+ self.run_index_tests_with_expressions(expressions)
+
+ def test_server_vlv_with_failing_expression(self):
+ """What happens when we run the VLV on an expression that matches
+ nothing?"""
+ expressions = ["(samaccountname=testferf)",
+ "(cn=hefalump)",
+ ]
+ self.run_index_tests_with_expressions(expressions)
+
+ def run_gte_tests_with_expressions(self, expressions):
+ # Here we don't test every before/after combination.
+ attrs = [x for x in self.users[0].keys() if x not in
+ ('dn', 'objectclass')]
+ for expression in expressions:
+ for attr in attrs:
+ gte_order, expected_order, gte_map = \
+ self.get_gte_tests_and_order(attr, expression)
+ # In case there is some order dependency, disorder tests
+ gte_tests = gte_order[:]
+ random.seed(2)
+ random.shuffle(gte_tests)
+ res = None
+ sort_control = "server_sort:1:0:%s" % attr
+ expected_order = self.get_expected_order(attr, expression)
+
+ for before in range(0, 11):
+ after = before
+ for gte in gte_tests:
+ if res is not None:
+ cookie = get_cookie(res.controls)
+ else:
+ cookie = None
+ vlv_search = encode_vlv_control(before=before,
+ after=after,
+ gte=get_bytes(gte),
+ cookie=cookie)
+
+ res = self.ldb.search(self.ou,
+ scope=ldb.SCOPE_ONELEVEL,
+ expression=expression,
+ attrs=[attr],
+ controls=[sort_control,
+ vlv_search])
+
+ results = [x[attr][0] for x in res]
+ offset = gte_map.get(gte, len(expected_order))
+
+ # here offset is 0-based
+ start = max(offset - before, 0)
+ end = offset + 1 + after
+
+ expected_results = expected_order[start: end]
+
+ self.assertEqual(expected_results, results)
+
+ def test_vlv_gte_with_expression(self):
+ """What happens when we run the VLV with an expression?"""
+ expressions = ["(objectClass=*)",
+ "(cn=%s)" % self.users[-1]['cn'],
+ "(roomNumber=%s)" % self.users[0]['roomNumber'],
+ ]
+ self.run_gte_tests_with_expressions(expressions)
+
+ def test_vlv_gte_with_failing_expression(self):
+ """What happens when we run the VLV on an expression that matches
+ nothing?"""
+ expressions = ["(samaccountname=testferf)",
+ "(cn=hefalump)",
+ ]
+ self.run_gte_tests_with_expressions(expressions)
+
+ def test_server_vlv_with_cookie_while_adding_and_deleting(self):
+ """What happens if we add or remove items in the middle of the VLV?
+
+ Nothing. The search and the sort is not repeated, and we only
+ deal with the objects originally found.
+ """
+ attrs = ['cn'] + [x for x in self.users[0].keys() if x not in
+ ('dn', 'objectclass')]
+ user_number = 0
+ iteration = 0
+ for attr in attrs:
+ full_results, controls, sort_control = \
+ self.get_full_list(attr, True)
+ original_n = len(self.users)
+
+ expected_order = full_results
+ random.seed(1)
+
+ for before in list(range(0, 3)) + [6, 11, 19]:
+ for after in list(range(0, 3)) + [6, 11, 19]:
+ start = max(before - 1, 1)
+ end = max(start + 4, original_n - after + 2)
+ for offset in range(start, end):
+ # if iteration > 2076:
+ # return
+ cookie = get_cookie(controls, original_n)
+ vlv_search = encode_vlv_control(before=before,
+ after=after,
+ offset=offset,
+ n=original_n,
+ cookie=cookie)
+
+ iteration += 1
+ res = self.ldb.search(self.ou,
+ scope=ldb.SCOPE_ONELEVEL,
+ attrs=[attr],
+ controls=[sort_control,
+ vlv_search])
+
+ controls = res.controls
+ results = [x[attr][0] for x in res]
+ real_offset = max(1, min(offset, len(expected_order)))
+
+ expected_results = []
+ skipped = 0
+ begin_offset = max(real_offset - before - 1, 0)
+ real_before = min(before, real_offset - 1)
+ real_after = min(after,
+ len(expected_order) - real_offset)
+
+ for x in expected_order[begin_offset:]:
+ if x is not None:
+ expected_results.append(get_bytes(x[0]))
+ if (len(expected_results) ==
+ real_before + real_after + 1):
+ break
+ else:
+ skipped += 1
+
+ if expected_results != results:
+ print("attr %s before %d after %d offset %d" %
+ (attr, before, after, offset))
+ self.assertEqual(expected_results, results)
+
+ n = len(self.users)
+ if random.random() < 0.1 + (n < 5) * 0.05:
+ if n == 0:
+ i = 0
+ else:
+ i = random.randrange(n)
+ user = self.create_user(i, n, suffix='-%s' %
+ user_number)
+ user_number += 1
+ if random.random() < 0.1 + (n > 50) * 0.02 and n:
+ index = random.randrange(n)
+ user = self.users.pop(index)
+
+ self.ldb.delete(user['dn'])
+
+ replaced = (user[attr], user['cn'])
+ if replaced in expected_order:
+ i = expected_order.index(replaced)
+ expected_order[i] = None
+
+ def test_server_vlv_with_cookie_while_changing(self):
+ """What happens if we modify items in the middle of the VLV?
+
+ The expected behaviour (as found on Windows) is the sort is
+ not repeated, but the changes in attributes are reflected.
+ """
+ attrs = [x for x in self.users[0].keys() if x not in
+ ('dn', 'objectclass', 'cn')]
+ for attr in attrs:
+ n_users = len(self.users)
+ expected_order = [x.upper() for x in self.get_expected_order(attr)]
+ sort_control = "server_sort:1:0:%s" % attr
+ res = None
+ i = 0
+
+ # First we'll fetch the whole list so we know the original
+ # sort order. This is necessary because we don't know how
+ # the server will order equivalent items. We are using the
+ # dn as a key.
+ half_n = n_users // 2
+ vlv_search = "vlv:1:%d:%d:%d:0" % (half_n, half_n, half_n + 1)
+ res = self.ldb.search(self.ou,
+ scope=ldb.SCOPE_ONELEVEL,
+ attrs=['dn', attr],
+ controls=[sort_control, vlv_search])
+
+ results = [x[attr][0].upper() for x in res]
+ #self.assertEqual(expected_order, results)
+
+ dn_order = [str(x['dn']) for x in res]
+ values = results[:]
+
+ for before in range(0, 3):
+ for after in range(0, 3):
+ for offset in range(1 + before, n_users - after):
+ cookie = get_cookie(res.controls, len(self.users))
+ vlv_search = ("vlv:1:%d:%d:%d:%s:%s" %
+ (before, after, offset, len(self.users),
+ cookie))
+
+ res = self.ldb.search(self.ou,
+ scope=ldb.SCOPE_ONELEVEL,
+ attrs=['dn', attr],
+ controls=[sort_control,
+ vlv_search])
+
+ dn_results = [str(x['dn']) for x in res]
+ dn_expected = dn_order[offset - before - 1:
+ offset + after]
+
+ self.assertEqual(dn_expected, dn_results)
+
+ results = [x[attr][0].upper() for x in res]
+
+ self.assertCorrectResults(results, values,
+ offset, before, after)
+
+ i += 1
+ if i % 3 == 2:
+ if (attr in self.locale_sorted_keys or
+ attr in self.binary_sorted_keys):
+ i1 = i % n_users
+ i2 = (i ^ 255) % n_users
+ dn1 = dn_order[i1]
+ dn2 = dn_order[i2]
+ v2 = values[i2]
+
+ if v2 in self.locale_sorted_keys:
+ v2 += '-%d' % i
+ cn1 = dn1.split(',', 1)[0][3:]
+ cn2 = dn2.split(',', 1)[0][3:]
+
+ values[i1] = v2
+
+ m = ldb.Message()
+ m.dn = ldb.Dn(self.ldb, dn1)
+ m[attr] = ldb.MessageElement(v2,
+ ldb.FLAG_MOD_REPLACE,
+ attr)
+
+ self.ldb.modify(m)
+
+ def test_server_vlv_fractions_with_cookie(self):
+ """What happens when the count is set to an arbitrary number?
+
+ In that case the offset and the count form a fraction, and the
+ VLV should be centred at a point offset/count of the way
+ through. For example, if offset is 3 and count is 6, the VLV
+ should be looking around halfway. The actual algorithm is a
+ bit fiddlier than that, because of the one-basedness of VLV.
+ """
+ attrs = [x for x in self.users[0].keys() if x not in
+ ('dn', 'objectclass')]
+
+ n_users = len(self.users)
+
+ random.seed(4)
+
+ for attr in attrs:
+ full_results, controls, sort_control = self.get_full_list(attr)
+ self.assertEqual(len(full_results), n_users)
+ for before in range(0, 2):
+ for after in range(0, 2):
+ for denominator in range(1, 20):
+ for offset in range(1, denominator + 3):
+ cookie = get_cookie(controls, len(self.users))
+ vlv_search = ("vlv:1:%d:%d:%d:%s:%s" %
+ (before, after, offset,
+ denominator,
+ cookie))
+ try:
+ res = self.ldb.search(self.ou,
+ scope=ldb.SCOPE_ONELEVEL,
+ attrs=[attr],
+ controls=[sort_control,
+ vlv_search])
+ except ldb.LdbError as e:
+ if offset != 0:
+ raise
+ print("offset %d denominator %d raised error "
+ "expected error %s\n"
+ "(offset zero is illegal unless "
+ "content count is zero)" %
+ (offset, denominator, e))
+ continue
+
+ results = [str(x[attr][0]).lower() for x in res]
+
+ if denominator == 0:
+ denominator = n_users
+ if offset == 0:
+ offset = denominator
+ elif denominator == 1:
+ # the offset can only be 1, but the 1/1 case
+ # means something special
+ if offset == 1:
+ real_offset = n_users
+ else:
+ real_offset = 1
+ else:
+ if offset > denominator:
+ offset = denominator
+ real_offset = (1 +
+ int(round((n_users - 1) *
+ (offset - 1) /
+ (denominator - 1.0)))
+ )
+
+ self.assertCorrectResults(results, full_results,
+ real_offset, before,
+ after)
+
+ controls = res.controls
+ if False:
+ for c in list(controls):
+ cstr = str(c)
+ if cstr.startswith('vlv_resp'):
+ bits = cstr.rsplit(':')
+ print("the answer is %s; we said %d" %
+ (bits[2], real_offset))
+ break
+
+ def test_server_vlv_no_cookie(self):
+ attrs = [x for x in self.users[0].keys() if x not in
+ ('dn', 'objectclass')]
+
+ for attr in attrs:
+ expected_order = self.get_expected_order(attr)
+ sort_control = "server_sort:1:0:%s" % attr
+ for before in range(0, 5):
+ for after in range(0, 7):
+ for offset in range(1 + before, len(self.users) - after):
+ res = self.ldb.search(self.ou,
+ scope=ldb.SCOPE_ONELEVEL,
+ attrs=[attr],
+ controls=[sort_control,
+ "vlv:1:%d:%d:%d:0" %
+ (before, after,
+ offset)])
+ results = [x[attr][0] for x in res]
+ self.assertCorrectResults(results, expected_order,
+ offset, before, after)
+
+ def get_expected_order_showing_deleted(self, attr,
+ expression="(|(cn=vlvtest*)(cn=vlv-deleted*))",
+ base=None,
+ scope=ldb.SCOPE_SUBTREE
+ ):
+ """Fetch the whole list sorted on the attribute, using sort only,
+ searching in the entire tree, not just our OU. This is the
+ way to find deleted objects.
+ """
+ if base is None:
+ base = self.base_dn
+ sort_control = "server_sort:1:0:%s" % attr
+ controls = [sort_control, "show_deleted:1"]
+
+ res = self.ldb.search(base,
+ scope=scope,
+ expression=expression,
+ attrs=[attr],
+ controls=controls)
+ results = [x[attr][0] for x in res]
+ return results
+
+ def add_deleted_users(self, n):
+ deleted_users = [self.create_user(i, n, prefix='vlv-deleted')
+ for i in range(n)]
+
+ for user in deleted_users:
+ self.delete_user(user)
+
+ def test_server_vlv_no_cookie_show_deleted(self):
+ """What do we see with the show_deleted control?"""
+ attrs = ['objectGUID',
+ 'cn',
+ 'sAMAccountName',
+ 'objectSid',
+ 'name',
+ 'whenChanged',
+ 'usnChanged'
+ ]
+
+ # add some deleted users first, just in case there are none
+ self.add_deleted_users(6)
+ random.seed(22)
+ expression = "(|(cn=vlvtest*)(cn=vlv-deleted*))"
+
+ for attr in attrs:
+ show_deleted_control = "show_deleted:1"
+ expected_order = self.get_expected_order_showing_deleted(attr,
+ expression)
+ n = len(expected_order)
+ sort_control = "server_sort:1:0:%s" % attr
+ for before in [3, 1, 0]:
+ for after in [0, 2]:
+ # don't test every position, because there could be hundreds.
+ # jump back and forth instead
+ for i in range(20):
+ offset = random.randrange(max(1, before - 2),
+ min(n - after + 2, n))
+ res = self.ldb.search(self.base_dn,
+ expression=expression,
+ scope=ldb.SCOPE_SUBTREE,
+ attrs=[attr],
+ controls=[sort_control,
+ show_deleted_control,
+ "vlv:1:%d:%d:%d:0" %
+ (before, after,
+ offset)
+ ]
+ )
+ results = [x[attr][0] for x in res]
+ self.assertCorrectResults(results, expected_order,
+ offset, before, after)
+
+ def test_server_vlv_no_cookie_show_deleted_only(self):
+ """What do we see with the show_deleted control when we're not looking
+ at any non-deleted things"""
+ attrs = ['objectGUID',
+ 'cn',
+ 'sAMAccountName',
+ 'objectSid',
+ 'whenChanged',
+ ]
+
+ # add some deleted users first, just in case there are none
+ self.add_deleted_users(4)
+ base = 'CN=Deleted Objects,%s' % self.base_dn
+ expression = "(cn=vlv-deleted*)"
+ for attr in attrs:
+ show_deleted_control = "show_deleted:1"
+ expected_order = self.get_expected_order_showing_deleted(attr,
+ expression=expression,
+ base=base,
+ scope=ldb.SCOPE_ONELEVEL)
+ print("searching for attr %s amongst %d deleted objects" %
+ (attr, len(expected_order)))
+ sort_control = "server_sort:1:0:%s" % attr
+ step = max(len(expected_order) // 10, 1)
+ for before in [3, 0]:
+ for after in [0, 2]:
+ for offset in range(1 + before,
+ len(expected_order) - after,
+ step):
+ res = self.ldb.search(base,
+ expression=expression,
+ scope=ldb.SCOPE_ONELEVEL,
+ attrs=[attr],
+ controls=[sort_control,
+ show_deleted_control,
+ "vlv:1:%d:%d:%d:0" %
+ (before, after,
+ offset)])
+ results = [x[attr][0] for x in res]
+ self.assertCorrectResults(results, expected_order,
+ offset, before, after)
+
+ def test_server_vlv_with_cookie_show_deleted(self):
+ """What do we see with the show_deleted control?"""
+ attrs = ['objectGUID',
+ 'cn',
+ 'sAMAccountName',
+ 'objectSid',
+ 'name',
+ 'whenChanged',
+ 'usnChanged'
+ ]
+ self.add_deleted_users(6)
+ random.seed(23)
+ for attr in attrs:
+ expected_order = self.get_expected_order(attr)
+ sort_control = "server_sort:1:0:%s" % attr
+ res = None
+ show_deleted_control = "show_deleted:1"
+ expected_order = self.get_expected_order_showing_deleted(attr)
+ n = len(expected_order)
+ expression = "(|(cn=vlvtest*)(cn=vlv-deleted*))"
+ for before in [3, 2, 1, 0]:
+ after = before
+ for i in range(20):
+ offset = random.randrange(max(1, before - 2),
+ min(n - after + 2, n))
+ if res is None:
+ vlv_search = "vlv:1:%d:%d:%d:0" % (before, after,
+ offset)
+ else:
+ cookie = get_cookie(res.controls, n)
+ vlv_search = ("vlv:1:%d:%d:%d:%s:%s" %
+ (before, after, offset, n,
+ cookie))
+
+ res = self.ldb.search(self.base_dn,
+ expression=expression,
+ scope=ldb.SCOPE_SUBTREE,
+ attrs=[attr],
+ controls=[sort_control,
+ vlv_search,
+ show_deleted_control])
+
+ results = [x[attr][0] for x in res]
+
+ self.assertCorrectResults(results, expected_order,
+ offset, before, after)
+
+ def test_server_vlv_gte_with_cookie(self):
+ attrs = [x for x in self.users[0].keys() if x not in
+ ('dn', 'objectclass')]
+ for attr in attrs:
+ gte_order, expected_order, gte_map = \
+ self.get_gte_tests_and_order(attr)
+ # In case there is some order dependency, disorder tests
+ gte_tests = gte_order[:]
+ random.seed(1)
+ random.shuffle(gte_tests)
+ res = None
+ sort_control = "server_sort:1:0:%s" % attr
+ for before in [0, 1, 2, 4]:
+ for after in [0, 1, 3, 6]:
+ for gte in gte_tests:
+ if res is not None:
+ cookie = get_cookie(res.controls, len(self.users))
+ else:
+ cookie = None
+ vlv_search = encode_vlv_control(before=before,
+ after=after,
+ gte=get_bytes(gte),
+ cookie=cookie)
+
+ res = self.ldb.search(self.ou,
+ scope=ldb.SCOPE_ONELEVEL,
+ attrs=[attr],
+ controls=[sort_control,
+ vlv_search])
+
+ results = [x[attr][0] for x in res]
+ offset = gte_map.get(gte, len(expected_order))
+
+ # here offset is 0-based
+ start = max(offset - before, 0)
+ end = offset + 1 + after
+
+ expected_results = expected_order[start: end]
+
+ self.assertEqual(expected_results, results)
+
+ def test_server_vlv_gte_no_cookie(self):
+ attrs = [x for x in self.users[0].keys() if x not in
+ ('dn', 'objectclass')]
+ iteration = 0
+ for attr in attrs:
+ gte_order, expected_order, gte_map = \
+ self.get_gte_tests_and_order(attr)
+ # In case there is some order dependency, disorder tests
+ gte_tests = gte_order[:]
+ random.seed(1)
+ random.shuffle(gte_tests)
+
+ sort_control = "server_sort:1:0:%s" % attr
+ for before in [0, 1, 3]:
+ for after in [0, 4]:
+ for gte in gte_tests:
+ vlv_search = encode_vlv_control(before=before,
+ after=after,
+ gte=get_bytes(gte))
+
+ res = self.ldb.search(self.ou,
+ scope=ldb.SCOPE_ONELEVEL,
+ attrs=[attr],
+ controls=[sort_control,
+ vlv_search])
+ results = [x[attr][0] for x in res]
+
+ # here offset is 0-based
+ offset = gte_map.get(gte, len(expected_order))
+ start = max(offset - before, 0)
+ end = offset + after + 1
+ expected_results = expected_order[start: end]
+ iteration += 1
+ if expected_results != results:
+ middle = expected_order[len(expected_order) // 2]
+ print(expected_results, results)
+ print(middle)
+ print(expected_order)
+ print()
+ print("\nattr %s offset %d before %d "
+ "after %d gte %s" %
+ (attr, offset, before, after, gte))
+ self.assertEqual(expected_results, results)
+
+ def test_multiple_searches(self):
+ """The maximum number of concurrent vlv searches per connection is
+ currently set at 3. That means if you open 4 VLV searches the
+ cookie on the first one should fail.
+ """
+ # Windows has a limit of 10 VLVs where there are low numbers
+ # of objects in each search.
+ attrs = ([x for x in self.users[0].keys() if x not in
+ ('dn', 'objectclass')] * 2)[:12]
+
+ vlv_cookies = []
+ for attr in attrs:
+ sort_control = "server_sort:1:0:%s" % attr
+
+ res = self.ldb.search(self.ou,
+ scope=ldb.SCOPE_ONELEVEL,
+ attrs=[attr],
+ controls=[sort_control,
+ "vlv:1:1:1:1:0"])
+
+ cookie = get_cookie(res.controls, len(self.users))
+ vlv_cookies.append(cookie)
+ time.sleep(0.2)
+
+ # now this one should fail
+ self.assertRaises(ldb.LdbError,
+ self.ldb.search,
+ self.ou,
+ scope=ldb.SCOPE_ONELEVEL,
+ attrs=[attr],
+ controls=[sort_control,
+ "vlv:1:1:1:1:0:%s" % vlv_cookies[0]])
+
+ # and this one should succeed
+ res = self.ldb.search(self.ou,
+ scope=ldb.SCOPE_ONELEVEL,
+ attrs=[attr],
+ controls=[sort_control,
+ "vlv:1:1:1:1:0:%s" % vlv_cookies[-1]])
+
+ # this one should fail because it is a new connection and
+ # doesn't share cookies
+ new_ldb = SamDB(host, credentials=creds,
+ session_info=system_session(lp), lp=lp)
+
+ self.assertRaises(ldb.LdbError,
+ new_ldb.search, self.ou,
+ scope=ldb.SCOPE_ONELEVEL,
+ attrs=[attr],
+ controls=[sort_control,
+ "vlv:1:1:1:1:0:%s" % vlv_cookies[-1]])
+
+ # but now without the critical flag it just does no VLV.
+ new_ldb.search(self.ou,
+ scope=ldb.SCOPE_ONELEVEL,
+ attrs=[attr],
+ controls=[sort_control,
+ "vlv:0:1:1:1:0:%s" % vlv_cookies[-1]])
+
+ def test_vlv_modify_during_view(self):
+ attr = 'roomNumber'
+ expr = "(objectclass=user)"
+
+ # Start new search
+ full_results, cookie = self.vlv_search(attr, expr,
+ after_count=len(self.users))
+
+ # Edit a user
+ edit_index = len(self.users)//2
+ edit_attr = full_results[edit_index]
+ users_with_attr = [u for u in self.users if u[attr] == edit_attr]
+ self.assertEqual(len(users_with_attr), 1)
+ edit_user = users_with_attr[0]
+
+ # Put z at the front of the val so it comes last in ordering
+ edit_val = "z_" + edit_user[attr]
+
+ m = ldb.Message()
+ m.dn = ldb.Dn(self.ldb, edit_user['dn'])
+ m[attr] = ldb.MessageElement(edit_val, ldb.FLAG_MOD_REPLACE, attr)
+ self.ldb.modify(m)
+
+ results, cookie = self.vlv_search(attr, expr, cookie=cookie,
+ after_count=len(self.users))
+
+ # Make expected_results by copying and editing full_results
+ expected_results = full_results[:]
+ expected_results[edit_index] = edit_val
+ self.assertEqual(results, expected_results)
+
+ # Test changing the search expression in a request on an initialised view
+ # Expected failure on samba, passes on windows
+ def test_vlv_change_search_expr(self):
+ attr = 'roomNumber'
+ expr = "(objectclass=user)"
+
+ # Start new search
+ full_results, cookie = self.vlv_search(attr, expr,
+ after_count=len(self.users))
+
+ middle_index = len(full_results)//2
+ # Search that excludes the old value but includes the new one
+ expr = "%s>=%s" % (attr, full_results[middle_index])
+ results, cookie = self.vlv_search(attr, expr, cookie=cookie,
+ after_count=len(self.users))
+ self.assertEqual(results, full_results[middle_index:])
+
+ # Check you can't add a value to a vlv view
+ def test_vlv_add_during_view(self):
+ attr = 'roomNumber'
+ expr = "(objectclass=user)"
+
+ # Start new search
+ full_results, cookie = self.vlv_search(attr, expr,
+ after_count=len(self.users))
+
+ # Add a user at the end of the sort order
+ add_val = "z_addedval"
+ user = {'cn': add_val, "objectclass": "user", attr: add_val}
+ user['dn'] = "cn=%s,%s" % (user['cn'], self.ou)
+ self.ldb.add(user)
+
+ results, cookie = self.vlv_search(attr, expr, cookie=cookie,
+ after_count=len(self.users)+1)
+ self.assertEqual(results, full_results)
+
+ def test_vlv_delete_during_view(self):
+ attr = 'roomNumber'
+ expr = "(objectclass=user)"
+
+ # Start new search
+ full_results, cookie = self.vlv_search(attr, expr,
+ after_count=len(self.users))
+
+ # Delete one of the users
+ del_index = len(self.users)//2
+ del_user = self.users[del_index]
+ self.ldb.delete(del_user['dn'])
+
+ results, cookie = self.vlv_search(attr, expr, cookie=cookie,
+ after_count=len(self.users))
+ expected_results = [r for r in full_results if r != del_user[attr]]
+ self.assertEqual(results, expected_results)
+
+ def test_vlv_change_during_search(self):
+ attr = 'facsimileTelephoneNumber'
+ prefix = "change_during_search_"
+ expr = "(&(objectClass=user)(cn=%s*))" % (prefix)
+ num_users = 3
+ users = [self.create_user(i, num_users, prefix=prefix)
+ for i in range(num_users)]
+ expr = "(&(objectClass=user)(facsimileTelephoneNumber=%s*))" % (prefix)
+
+ # Start the VLV, change the searched attribute and try the
+ # cookie.
+ results, cookie = self.vlv_search(attr, expr)
+
+ for u in users:
+ self.ldb.modify_ldif("dn: %s\n"
+ "changetype: modify\n"
+ "replace: facsimileTelephoneNumber\n"
+ "facsimileTelephoneNumber: 123" % u['dn'])
+
+ for i in range(2):
+ results, cookie = self.vlv_search(attr, expr, cookie=cookie,
+ offset=i+1)
+
+
+
+class PagedResultsTests(TestsWithUserOU):
+
+ def paged_search(self, expr, cookie="", page_size=0, extra_ctrls=None,
+ attrs=None, ou=None, subtree=False, sort=True):
+ ou = ou or self.ou
+ if cookie:
+ cookie = ":" + cookie
+ ctrl = "paged_results:1:" + str(page_size) + cookie
+ controls = [ctrl]
+
+ # If extra controls are provided then add them, else default to
+ # sort control on 'cn' attribute
+ if extra_ctrls is not None:
+ controls += extra_ctrls
+ elif sort:
+ sort_ctrl = "server_sort:1:0:cn"
+ controls.append(sort_ctrl)
+
+ kwargs = {}
+ if attrs is not None:
+ kwargs = {"attrs": attrs}
+
+ scope = ldb.SCOPE_ONELEVEL
+ if subtree:
+ scope = ldb.SCOPE_SUBTREE
+
+ res = self.ldb_ro.search(ou,
+ expression=expr,
+ scope=scope,
+ controls=controls,
+ **kwargs)
+ results = [str(r['cn'][0]) for r in res]
+
+ ctrls = [str(c) for c in res.controls if
+ str(c).startswith("paged_results")]
+ assert len(ctrls) == 1, "no paged_results response"
+
+ spl = ctrls[0].rsplit(':', 3)
+ cookie = ""
+ if len(spl) == 3:
+ cookie = spl[-1]
+ return results, cookie
+
+
+class PagedResultsTestsRO(PagedResultsTests):
+
+ def test_paged_search_lockstep(self):
+ expr = "(objectClass=*)"
+ ps = 3
+
+ all_results, _ = self.paged_search(expr, page_size=len(self.users)+1)
+
+ # Run two different but overlapping paged searches simultaneously.
+ set_1_index = int((len(all_results))//3)
+ set_2_index = int((2*len(all_results))//3)
+ set_1 = all_results[set_1_index:]
+ set_2 = all_results[:set_2_index+1]
+ set_1_expr = "(cn>=%s)" % (all_results[set_1_index])
+ set_2_expr = "(cn<=%s)" % (all_results[set_2_index])
+
+ results, cookie1 = self.paged_search(set_1_expr, page_size=ps)
+ self.assertEqual(results, set_1[:ps])
+ results, cookie2 = self.paged_search(set_2_expr, page_size=ps)
+ self.assertEqual(results, set_2[:ps])
+
+ results, cookie1 = self.paged_search(set_1_expr, cookie=cookie1,
+ page_size=ps)
+ self.assertEqual(results, set_1[ps:ps*2])
+ results, cookie2 = self.paged_search(set_2_expr, cookie=cookie2,
+ page_size=ps)
+ self.assertEqual(results, set_2[ps:ps*2])
+
+ results, _ = self.paged_search(set_1_expr, cookie=cookie1,
+ page_size=len(self.users))
+ self.assertEqual(results, set_1[ps*2:])
+ results, _ = self.paged_search(set_2_expr, cookie=cookie2,
+ page_size=len(self.users))
+ self.assertEqual(results, set_2[ps*2:])
+
+
+class PagedResultsTestsGC(PagedResultsTestsRO):
+
+ def setUp(self):
+ super(PagedResultsTestsRO, self).setUp()
+ self.ldb_ro = SamDB(host + ":3268", credentials=creds,
+ session_info=system_session(lp), lp=lp)
+
+
+class PagedResultsTestsRW(PagedResultsTests):
+
+ def test_paged_delete_during_search(self, sort=True):
+ expr = "(objectClass=*)"
+
+ # Start new search
+ first_page_size = 3
+ results, cookie = self.paged_search(expr, sort=sort,
+ page_size=first_page_size)
+
+ # Run normal search to get expected results
+ unedited_results, _ = self.paged_search(expr, sort=sort,
+ page_size=len(self.users))
+
+ # Get remaining users not returned by the search above
+ unreturned_users = [u for u in self.users if u['cn'] not in results]
+
+ # Delete one of the users
+ del_index = len(self.users)//2
+ del_user = unreturned_users[del_index]
+ self.ldb.delete(del_user['dn'])
+
+ # Run test
+ results, _ = self.paged_search(expr, cookie=cookie, sort=sort,
+ page_size=len(self.users))
+ expected_results = [r for r in unedited_results[first_page_size:]
+ if r != del_user['cn']]
+ self.assertEqual(results, expected_results)
+
+ def test_paged_delete_during_search_unsorted(self):
+ self.test_paged_delete_during_search(sort=False)
+
+ def test_paged_show_deleted(self):
+ unique = time.strftime("%s", time.gmtime())[-5:]
+ prefix = "show_deleted_test_%s_" % (unique)
+ expr = "(&(objectClass=user)(cn=%s*))" % (prefix)
+ del_ctrl = "show_deleted:1"
+
+ num_users = 10
+ users = []
+ for i in range(num_users):
+ user = self.create_user(i, num_users, prefix=prefix)
+ users.append(user)
+
+ first_user = users[0]
+ self.ldb.delete(first_user['dn'])
+
+ # Start new search
+ first_page_size = 3
+ results, cookie = self.paged_search(expr, page_size=first_page_size,
+ extra_ctrls=[del_ctrl],
+ ou=self.base_dn,
+ subtree=True)
+
+ # Get remaining users not returned by the search above
+ unreturned_users = [u for u in users if u['cn'] not in results]
+
+ # Delete one of the users
+ del_index = len(users)//2
+ del_user = unreturned_users[del_index]
+ self.ldb.delete(del_user['dn'])
+
+ results2, _ = self.paged_search(expr, cookie=cookie,
+ page_size=len(users)*2,
+ extra_ctrls=[del_ctrl],
+ ou=self.base_dn,
+ subtree=True)
+
+ user_cns = {str(u['cn']) for u in users}
+ deleted_cns = {first_user['cn'], del_user['cn']}
+
+ all_results = results + results2
+ normal_results = {r for r in all_results if "DEL:" not in r}
+ self.assertEqual(normal_results, user_cns - deleted_cns)
+
+ # Deleted results get "\nDEL:<GUID>" added to the CN, so cut it out.
+ deleted_results = {r[:r.index('\n')] for r in all_results
+ if "DEL:" in r}
+ self.assertEqual(deleted_results, deleted_cns)
+
+ def test_paged_add_during_search(self, sort=True):
+ expr = "(objectClass=*)"
+
+ # Start new search
+ first_page_size = 3
+ results, cookie = self.paged_search(expr, sort=sort,
+ page_size=first_page_size)
+
+ unedited_results, _ = self.paged_search(expr, sort=sort,
+ page_size=len(self.users)+1)
+
+ # Get remaining users not returned by the search above
+ unwalked_users = [cn for cn in unedited_results if cn not in results]
+
+ # Add a user in the middle of the sort order
+ middle_index = len(unwalked_users)//2
+ middle_user = unwalked_users[middle_index]
+
+ user = {'cn': middle_user + '_2', "objectclass": "user"}
+ user['dn'] = "cn=%s,%s" % (user['cn'], self.ou)
+ self.ldb.add(user)
+
+ results, _ = self.paged_search(expr, sort=sort, cookie=cookie,
+ page_size=len(self.users)+1)
+ expected_results = unwalked_users[:]
+
+ # Uncomment this line to assert that adding worked.
+ # expected_results.insert(middle_index+1, user['cn'])
+
+ self.assertEqual(results, expected_results)
+
+ # On Windows, when server_sort ctrl is NOT provided in the initial search,
+ # adding a record during the search will cause the modified record to
+ # be returned in a future page if it belongs there in the ordering.
+ # When server_sort IS provided, the added record will not be returned.
+ # Samba implements the latter behaviour. This test confirms Samba's
+ # implementation and will fail on Windows.
+ def test_paged_add_during_search_unsorted(self):
+ self.test_paged_add_during_search(sort=False)
+
+ def test_paged_modify_during_search(self, sort=True):
+ expr = "(objectClass=*)"
+
+ # Start new search
+ first_page_size = 3
+ results, cookie = self.paged_search(expr, sort=sort,
+ page_size=first_page_size)
+
+ unedited_results, _ = self.paged_search(expr, sort=sort,
+ page_size=len(self.users)+1)
+
+ # Modify user in the middle of the remaining sort order
+ unwalked_users = [cn for cn in unedited_results if cn not in results]
+ middle_index = len(unwalked_users)//2
+ middle_cn = unwalked_users[middle_index]
+
+ # Find user object
+ users_with_middle_cn = [u for u in self.users if u['cn'] == middle_cn]
+ self.assertEqual(len(users_with_middle_cn), 1)
+ middle_user = users_with_middle_cn[0]
+
+ # Rename object
+ edit_cn = "z_" + middle_cn
+ new_dn = middle_user['dn'].replace(middle_cn, edit_cn)
+ self.ldb.rename(middle_user['dn'], new_dn)
+
+ results, _ = self.paged_search(expr, cookie=cookie, sort=sort,
+ page_size=len(self.users)+1)
+ expected_results = unwalked_users[:]
+ expected_results[middle_index] = edit_cn
+ self.assertEqual(results, expected_results)
+
+ # On Windows, when server_sort ctrl is NOT provided in the initial search,
+ # modifying a record during the search will cause the modified record to
+ # be returned in its new place in a CN ordering.
+ # When server_sort IS provided, the record will be returned its old place
+ # in the control-specified ordering.
+ # Samba implements the latter behaviour. This test confirms Samba's
+ # implementation and will fail on Windows.
+ def test_paged_modify_during_search_unsorted(self):
+ self.test_paged_modify_during_search(sort=False)
+
+ def test_paged_modify_object_scope(self):
+ expr = "(objectClass=*)"
+
+ ou2 = "OU=vlvtestou2,%s" % (self.tree_dn)
+ self.ldb.add({"dn": ou2, "objectclass": "organizationalUnit"})
+
+ # Do a separate, full search to get all results
+ unedited_results, _ = self.paged_search(expr,
+ page_size=len(self.users)+1)
+
+ # Rename before starting a search
+ first_cn = self.users[0]['cn']
+ new_dn = "CN=%s,%s" % (first_cn, ou2)
+ self.ldb.rename(self.users[0]['dn'], new_dn)
+
+ # Start new search under the original OU
+ first_page_size = 3
+ results, cookie = self.paged_search(expr, page_size=first_page_size)
+ self.assertEqual(results, unedited_results[1:1+first_page_size])
+
+ # Get one of the users that is yet to be returned
+ unwalked_users = [cn for cn in unedited_results if cn not in results]
+ middle_index = len(unwalked_users)//2
+ middle_cn = unwalked_users[middle_index]
+
+ # Find user object
+ users_with_middle_cn = [u for u in self.users if u['cn'] == middle_cn]
+ self.assertEqual(len(users_with_middle_cn), 1)
+ middle_user = users_with_middle_cn[0]
+
+ # Rename
+ new_dn = "CN=%s,%s" % (middle_cn, ou2)
+ self.ldb.rename(middle_user['dn'], new_dn)
+
+ results, _ = self.paged_search(expr, cookie=cookie,
+ page_size=len(self.users)+1)
+
+ expected_results = unwalked_users[:]
+
+ # We should really expect that the object renamed into a different
+ # OU should vanish from the results, but turns out Windows does return
+ # the object in this case. Our module matches the Windows behaviour.
+
+ # If behaviour changes, this line inverts the test's expectations to
+ # what you might expect.
+ # del expected_results[middle_index]
+
+ # But still expect the user we removed before the search to be gone
+ del expected_results[0]
+
+ self.assertEqual(results, expected_results)
+
+ def test_paged_modify_one_during_search(self):
+ prefix = "change_during_search_"
+ num_users = 5
+ users = [self.create_user(i, num_users, prefix=prefix)
+ for i in range(num_users)]
+ expr = "(&(objectClass=user)(facsimileTelephoneNumber=%s*))" % (prefix)
+
+ # Get the first page, then change the searched attribute and
+ # try for the second page.
+ results, cookie = self.paged_search(expr, page_size=1)
+ self.assertEqual(len(results), 1)
+ unwalked_users = [u for u in users if u['cn'] != results[0]]
+ self.assertEqual(len(unwalked_users), num_users-1)
+
+ mod_dn = unwalked_users[0]['dn']
+ self.ldb.modify_ldif("dn: %s\n"
+ "changetype: modify\n"
+ "replace: facsimileTelephoneNumber\n"
+ "facsimileTelephoneNumber: 123" % mod_dn)
+
+ results, _ = self.paged_search(expr, cookie=cookie,
+ page_size=len(self.users))
+ expected_cns = {u['cn'] for u in unwalked_users if u['dn'] != mod_dn}
+ self.assertEqual(set(results), expected_cns)
+
+ def test_paged_modify_all_during_search(self):
+ prefix = "change_during_search_"
+ num_users = 5
+ users = [self.create_user(i, num_users, prefix=prefix)
+ for i in range(num_users)]
+ expr = "(&(objectClass=user)(facsimileTelephoneNumber=%s*))" % (prefix)
+
+ # Get the first page, then change the searched attribute and
+ # try for the second page.
+ results, cookie = self.paged_search(expr, page_size=1)
+ unwalked_users = [u for u in users if u['cn'] != results[0]]
+
+ for u in users:
+ self.ldb.modify_ldif("dn: %s\n"
+ "changetype: modify\n"
+ "replace: facsimileTelephoneNumber\n"
+ "facsimileTelephoneNumber: 123" % u['dn'])
+
+ results, _ = self.paged_search(expr, cookie=cookie,
+ page_size=len(self.users))
+ self.assertEqual(results, [])
+
+ def assertPagedSearchRaises(self, err_num, expr, cookie, attrs=None,
+ extra_ctrls=None):
+ try:
+ results, _ = self.paged_search(expr, cookie=cookie,
+ page_size=2,
+ extra_ctrls=extra_ctrls,
+ attrs=attrs)
+ except ldb.LdbError as e:
+ self.assertEqual(e.args[0], err_num)
+ return
+
+ self.fail("No error raised by invalid search")
+
+ def test_paged_changed_expr(self):
+ # Initiate search then use a different expr in subsequent req
+ expr = "(objectClass=*)"
+ results, cookie = self.paged_search(expr, page_size=3)
+ expr = "cn>=a"
+ expected_error_num = 12
+ self.assertPagedSearchRaises(expected_error_num, expr, cookie)
+
+ def test_paged_changed_controls(self):
+ expr = "(objectClass=*)"
+ sort_ctrl = "server_sort:1:0:cn"
+ del_ctrl = "show_deleted:1"
+ expected_error_num = 12
+ ps = 3
+
+ # Initiate search with a sort control then remove in subsequent req
+ results, cookie = self.paged_search(expr, page_size=ps,
+ extra_ctrls=[sort_ctrl])
+ self.assertPagedSearchRaises(expected_error_num, expr,
+ cookie, extra_ctrls=[])
+
+ # Initiate search with no sort control then add one in subsequent req
+ results, cookie = self.paged_search(expr, page_size=ps,
+ extra_ctrls=[])
+ self.assertPagedSearchRaises(expected_error_num, expr,
+ cookie, extra_ctrls=[sort_ctrl])
+
+ # Initiate search with show-deleted control then
+ # remove it in subsequent req
+ results, cookie = self.paged_search(expr, page_size=ps,
+ extra_ctrls=[del_ctrl])
+ self.assertPagedSearchRaises(expected_error_num, expr,
+ cookie, extra_ctrls=[])
+
+ # Initiate normal search then add show-deleted control
+ # in subsequent req
+ results, cookie = self.paged_search(expr, page_size=ps,
+ extra_ctrls=[])
+ self.assertPagedSearchRaises(expected_error_num, expr,
+ cookie, extra_ctrls=[del_ctrl])
+
+ # Changing order of controls shouldn't break the search
+ results, cookie = self.paged_search(expr, page_size=ps,
+ extra_ctrls=[del_ctrl, sort_ctrl])
+ try:
+ results, cookie = self.paged_search(expr, page_size=ps,
+ extra_ctrls=[sort_ctrl,
+ del_ctrl])
+ except ldb.LdbError as e:
+ self.fail(e)
+
+ def test_paged_cant_change_controls_data(self):
+ # Some defaults for the rest of the tests
+ expr = "(objectClass=*)"
+ sort_ctrl = "server_sort:1:0:cn"
+ expected_error_num = 12
+
+ # Initiate search with sort control then change it in subsequent req
+ results, cookie = self.paged_search(expr, page_size=3,
+ extra_ctrls=[sort_ctrl])
+ changed_sort_ctrl = "server_sort:1:0:roomNumber"
+ self.assertPagedSearchRaises(expected_error_num, expr,
+ cookie, extra_ctrls=[changed_sort_ctrl])
+
+ # Initiate search with a control with crit=1, then use crit=0
+ results, cookie = self.paged_search(expr, page_size=3,
+ extra_ctrls=[sort_ctrl])
+ changed_sort_ctrl = "server_sort:0:0:cn"
+ self.assertPagedSearchRaises(expected_error_num, expr,
+ cookie, extra_ctrls=[changed_sort_ctrl])
+
+ def test_paged_search_referrals(self):
+ expr = "(objectClass=*)"
+ paged_ctrl = "paged_results:1:5"
+ res = self.ldb.search(self.base_dn,
+ expression=expr,
+ attrs=['cn'],
+ scope=ldb.SCOPE_SUBTREE,
+ controls=[paged_ctrl])
+
+ # Do a paged search walk over the whole database and save a list
+ # of all the referrals returned by each search.
+ referral_lists = []
+
+ while True:
+ referral_lists.append(res.referals)
+
+ ctrls = [str(c) for c in res.controls if
+ str(c).startswith("paged_results")]
+ self.assertEqual(len(ctrls), 1)
+ spl = ctrls[0].rsplit(':')
+ if len(spl) != 3:
+ break
+
+ cookie = spl[-1]
+ res = self.ldb.search(self.base_dn,
+ expression=expr,
+ attrs=['cn'],
+ scope=ldb.SCOPE_SUBTREE,
+ controls=[paged_ctrl + ":" + cookie])
+
+ ref_list = referral_lists[0]
+
+ # Sanity check to make sure the search actually did something
+ self.assertGreater(len(referral_lists), 2)
+
+ # Check the first referral set contains stuff
+ self.assertGreater(len(ref_list), 0)
+
+ # Check the others don't
+ self.assertTrue(all([len(l) == 0 for l in referral_lists[1:]]))
+
+ # Check the entries in the first referral list look like referrals
+ self.assertTrue(all([s.startswith('ldap://') for s in ref_list]))
+
+ def test_paged_change_attrs(self):
+ expr = "(objectClass=*)"
+ attrs = ['cn']
+ expected_error_num = 12
+
+ results, cookie = self.paged_search(expr, page_size=3, attrs=attrs)
+ results, cookie = self.paged_search(expr, cookie=cookie, page_size=3,
+ attrs=attrs)
+
+ changed_attrs = attrs + ['roomNumber']
+ self.assertPagedSearchRaises(expected_error_num, expr,
+ cookie, attrs=changed_attrs,
+ extra_ctrls=[])
+
+ def test_vlv_paged(self):
+ """Testing behaviour with VLV and paged_results set.
+
+ A strange combination, certainly
+
+ Thankfully combining both of these gives
+ unavailable-critical-extension against Windows 1709
+
+ """
+ sort_control = "server_sort:1:0:cn"
+
+ try:
+ msgs = self.ldb.search(base=self.base_dn,
+ scope=ldb.SCOPE_SUBTREE,
+ attrs=["objectGUID", "cn", "member"],
+ controls=["vlv:1:20:20:11:0",
+ sort_control,
+ "paged_results:1:1024"])
+ self.fail("should have failed with LDAP_UNAVAILABLE_CRITICAL_EXTENSION")
+ except ldb.LdbError as e:
+ (enum, estr) = e.args
+ self.assertEqual(enum, ldb.ERR_UNSUPPORTED_CRITICAL_EXTENSION)
+
+
+if "://" not in host:
+ if os.path.isfile(host):
+ host = "tdb://%s" % host
+ else:
+ host = "ldap://%s" % host
+
+
+TestProgram(module=__name__, opts=subunitopts)
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 02:21:37 +0000