source4/dsdb/tests/python/passwords.py

   1 #!/usr/bin/env python
   2 # -*- coding: utf-8 -*-
   3 # This tests the password changes over LDAP for AD implementations
   4 #
   5 # Copyright Matthias Dieter Wallnoefer 2010
   6 #
   7 # Notice: This tests will also work against Windows Server if the connection is
   8 # secured enough (SASL with a minimum of 128 Bit encryption) - consider
   9 # MS-ADTS 3.1.1.3.1.5
  10
  11 import optparse
  12 import sys
  13 import base64
  14 import time
  15 import os
  16
  17 sys.path.append("bin/python")
  18 import samba
  19 samba.ensure_external_module("testtools", "testtools")
  20 samba.ensure_external_module("subunit", "subunit/python")
  21
  22 import samba.getopt as options
  23
  24 from samba.auth import system_session
  25 from samba.credentials import Credentials
  26 from ldb import SCOPE_BASE, LdbError
  27 from ldb import ERR_NO_SUCH_OBJECT, ERR_ATTRIBUTE_OR_VALUE_EXISTS
  28 from ldb import ERR_UNWILLING_TO_PERFORM, ERR_INSUFFICIENT_ACCESS_RIGHTS
  29 from ldb import ERR_NO_SUCH_ATTRIBUTE
  30 from ldb import ERR_CONSTRAINT_VIOLATION
  31 from ldb import Message, MessageElement, Dn
  32 from ldb import FLAG_MOD_ADD, FLAG_MOD_REPLACE, FLAG_MOD_DELETE
  33 from samba import gensec
  34 from samba.samdb import SamDB
  35 import samba.tests
  36 from samba.tests import delete_force
  37 from subunit.run import SubunitTestRunner
  38 import unittest
  39
  40 parser = optparse.OptionParser("passwords.py [options] <host>")
  41 sambaopts = options.SambaOptions(parser)
  42 parser.add_option_group(sambaopts)
  43 parser.add_option_group(options.VersionOptions(parser))
  44 # use command line creds if available
  45 credopts = options.CredentialsOptions(parser)
  46 parser.add_option_group(credopts)
  47 opts, args = parser.parse_args()
  48
  49 if len(args) < 1:
  50     parser.print_usage()
  51     sys.exit(1)
  52
  53 host = args[0]
  54
  55 lp = sambaopts.get_loadparm()
  56 creds = credopts.get_credentials(lp)
  57
  58 # Force an encrypted connection
  59 creds.set_gensec_features(creds.get_gensec_features() | gensec.FEATURE_SEAL)
  60
  61 #
  62 # Tests start here
  63 #
  64
  65 class PasswordTests(samba.tests.TestCase):
  66
  67     def setUp(self):
  68         super(PasswordTests, self).setUp()
  69         self.ldb = ldb
  70         self.base_dn = ldb.domain_dn()
  71
  72         # (Re)adds the test user "testuser" with no password atm
  73         delete_force(self.ldb, "cn=testuser,cn=users," + self.base_dn)
  74         self.ldb.add({
  75              "dn": "cn=testuser,cn=users," + self.base_dn,
  76              "objectclass": "user",
  77              "sAMAccountName": "testuser"})
  78
  79         # Tests a password change when we don't have any password yet with a
  80         # wrong old password
  81         try:
  82             self.ldb.modify_ldif("""
  83 dn: cn=testuser,cn=users,""" + self.base_dn + """
  84 changetype: modify
  85 delete: userPassword
  86 userPassword: noPassword
  87 add: userPassword
  88 userPassword: thatsAcomplPASS2
  89 """)
  90             self.fail()
  91         except LdbError, (num, msg):
  92             self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
  93             # Windows (2008 at least) seems to have some small bug here: it
  94             # returns "0000056A" on longer (always wrong) previous passwords.
  95             self.assertTrue('00000056' in msg)
  96
  97         # Sets the initial user password with a "special" password change
  98         # I think that this internally is a password set operation and it can
  99         # only be performed by someone which has password set privileges on the
 100         # account (at least in s4 we do handle it like that).
 101         self.ldb.modify_ldif("""
 102 dn: cn=testuser,cn=users,""" + self.base_dn + """
 103 changetype: modify
 104 delete: userPassword
 105 add: userPassword
 106 userPassword: thatsAcomplPASS1
 107 """)
 108
 109         # But in the other way around this special syntax doesn't work
 110         try:
 111             self.ldb.modify_ldif("""
 112 dn: cn=testuser,cn=users,""" + self.base_dn + """
 113 changetype: modify
 114 delete: userPassword
 115 userPassword: thatsAcomplPASS1
 116 add: userPassword
 117 """)
 118             self.fail()
 119         except LdbError, (num, _):
 120             self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
 121
 122         # Enables the user account
 123         self.ldb.enable_account("(sAMAccountName=testuser)")
 124
 125         # Open a second LDB connection with the user credentials. Use the
 126         # command line credentials for informations like the domain, the realm
 127         # and the workstation.
 128         creds2 = Credentials()
 129         creds2.set_username("testuser")
 130         creds2.set_password("thatsAcomplPASS1")
 131         creds2.set_domain(creds.get_domain())
 132         creds2.set_realm(creds.get_realm())
 133         creds2.set_workstation(creds.get_workstation())
 134         creds2.set_gensec_features(creds2.get_gensec_features()
 135                                                           | gensec.FEATURE_SEAL)
 136         self.ldb2 = SamDB(url=host, credentials=creds2, lp=lp)
 137
 138     def test_unicodePwd_hash_set(self):
 139         print "Performs a password hash set operation on 'unicodePwd' which should be prevented"
 140         # Notice: Direct hash password sets should never work
 141
 142         m = Message()
 143         m.dn = Dn(ldb, "cn=testuser,cn=users," + self.base_dn)
 144         m["unicodePwd"] = MessageElement("XXXXXXXXXXXXXXXX", FLAG_MOD_REPLACE,
 145           "unicodePwd")
 146         try:
 147             ldb.modify(m)
 148             self.fail()
 149         except LdbError, (num, _):
 150             self.assertEquals(num, ERR_UNWILLING_TO_PERFORM)
 151
 152     def test_unicodePwd_hash_change(self):
 153         print "Performs a password hash change operation on 'unicodePwd' which should be prevented"
 154         # Notice: Direct hash password changes should never work
 155
 156         # Hash password changes should never work
 157         try:
 158             self.ldb2.modify_ldif("""
 159 dn: cn=testuser,cn=users,""" + self.base_dn + """
 160 changetype: modify
 161 delete: unicodePwd
 162 unicodePwd: XXXXXXXXXXXXXXXX
 163 add: unicodePwd
 164 unicodePwd: YYYYYYYYYYYYYYYY
 165 """)
 166             self.fail()
 167         except LdbError, (num, _):
 168             self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
 169
 170     def test_unicodePwd_clear_set(self):
 171         print "Performs a password cleartext set operation on 'unicodePwd'"
 172
 173         m = Message()
 174         m.dn = Dn(ldb, "cn=testuser,cn=users," + self.base_dn)
 175         m["unicodePwd"] = MessageElement("\"thatsAcomplPASS2\"".encode('utf-16-le'),
 176           FLAG_MOD_REPLACE, "unicodePwd")
 177         ldb.modify(m)
 178
 179     def test_unicodePwd_clear_change(self):
 180         print "Performs a password cleartext change operation on 'unicodePwd'"
 181
 182         self.ldb2.modify_ldif("""
 183 dn: cn=testuser,cn=users,""" + self.base_dn + """
 184 changetype: modify
 185 delete: unicodePwd
 186 unicodePwd:: """ + base64.b64encode("\"thatsAcomplPASS1\"".encode('utf-16-le')) + """
 187 add: unicodePwd
 188 unicodePwd:: """ + base64.b64encode("\"thatsAcomplPASS2\"".encode('utf-16-le')) + """
 189 """)
 190
 191         # Wrong old password
 192         try:
 193             self.ldb2.modify_ldif("""
 194 dn: cn=testuser,cn=users,""" + self.base_dn + """
 195 changetype: modify
 196 delete: unicodePwd
 197 unicodePwd:: """ + base64.b64encode("\"thatsAcomplPASS3\"".encode('utf-16-le')) + """
 198 add: unicodePwd
 199 unicodePwd:: """ + base64.b64encode("\"thatsAcomplPASS4\"".encode('utf-16-le')) + """
 200 """)
 201             self.fail()
 202         except LdbError, (num, msg):
 203             self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
 204             self.assertTrue('00000056' in msg)
 205
 206         # A change to the same password again will not work (password history)
 207         try:
 208             self.ldb2.modify_ldif("""
 209 dn: cn=testuser,cn=users,""" + self.base_dn + """
 210 changetype: modify
 211 delete: unicodePwd
 212 unicodePwd:: """ + base64.b64encode("\"thatsAcomplPASS2\"".encode('utf-16-le')) + """
 213 add: unicodePwd
 214 unicodePwd:: """ + base64.b64encode("\"thatsAcomplPASS2\"".encode('utf-16-le')) + """
 215 """)
 216             self.fail()
 217         except LdbError, (num, msg):
 218             self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
 219             self.assertTrue('0000052D' in msg)
 220
 221     def test_dBCSPwd_hash_set(self):
 222         print "Performs a password hash set operation on 'dBCSPwd' which should be prevented"
 223         # Notice: Direct hash password sets should never work
 224
 225         m = Message()
 226         m.dn = Dn(ldb, "cn=testuser,cn=users," + self.base_dn)
 227         m["dBCSPwd"] = MessageElement("XXXXXXXXXXXXXXXX", FLAG_MOD_REPLACE,
 228           "dBCSPwd")
 229         try:
 230             ldb.modify(m)
 231             self.fail()
 232         except LdbError, (num, _):
 233             self.assertEquals(num, ERR_UNWILLING_TO_PERFORM)
 234
 235     def test_dBCSPwd_hash_change(self):
 236         print "Performs a password hash change operation on 'dBCSPwd' which should be prevented"
 237         # Notice: Direct hash password changes should never work
 238
 239         try:
 240             self.ldb2.modify_ldif("""
 241 dn: cn=testuser,cn=users,""" + self.base_dn + """
 242 changetype: modify
 243 delete: dBCSPwd
 244 dBCSPwd: XXXXXXXXXXXXXXXX
 245 add: dBCSPwd
 246 dBCSPwd: YYYYYYYYYYYYYYYY
 247 """)
 248             self.fail()
 249         except LdbError, (num, _):
 250             self.assertEquals(num, ERR_UNWILLING_TO_PERFORM)
 251
 252     def test_userPassword_clear_set(self):
 253         print "Performs a password cleartext set operation on 'userPassword'"
 254         # Notice: This works only against Windows if "dSHeuristics" has been set
 255         # properly
 256
 257         m = Message()
 258         m.dn = Dn(ldb, "cn=testuser,cn=users," + self.base_dn)
 259         m["userPassword"] = MessageElement("thatsAcomplPASS2", FLAG_MOD_REPLACE,
 260           "userPassword")
 261         ldb.modify(m)
 262
 263     def test_userPassword_clear_change(self):
 264         print "Performs a password cleartext change operation on 'userPassword'"
 265         # Notice: This works only against Windows if "dSHeuristics" has been set
 266         # properly
 267
 268         self.ldb2.modify_ldif("""
 269 dn: cn=testuser,cn=users,""" + self.base_dn + """
 270 changetype: modify
 271 delete: userPassword
 272 userPassword: thatsAcomplPASS1
 273 add: userPassword
 274 userPassword: thatsAcomplPASS2
 275 """)
 276
 277         # Wrong old password
 278         try:
 279             self.ldb2.modify_ldif("""
 280 dn: cn=testuser,cn=users,""" + self.base_dn + """
 281 changetype: modify
 282 delete: userPassword
 283 userPassword: thatsAcomplPASS3
 284 add: userPassword
 285 userPassword: thatsAcomplPASS4
 286 """)
 287             self.fail()
 288         except LdbError, (num, msg):
 289             self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
 290             self.assertTrue('00000056' in msg)
 291
 292         # A change to the same password again will not work (password history)
 293         try:
 294             self.ldb2.modify_ldif("""
 295 dn: cn=testuser,cn=users,""" + self.base_dn + """
 296 changetype: modify
 297 delete: userPassword
 298 userPassword: thatsAcomplPASS2
 299 add: userPassword
 300 userPassword: thatsAcomplPASS2
 301 """)
 302             self.fail()
 303         except LdbError, (num, msg):
 304             self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
 305             self.assertTrue('0000052D' in msg)
 306
 307     def test_clearTextPassword_clear_set(self):
 308         print "Performs a password cleartext set operation on 'clearTextPassword'"
 309         # Notice: This never works against Windows - only supported by us
 310
 311         try:
 312             m = Message()
 313             m.dn = Dn(ldb, "cn=testuser,cn=users," + self.base_dn)
 314             m["clearTextPassword"] = MessageElement("thatsAcomplPASS2".encode('utf-16-le'),
 315               FLAG_MOD_REPLACE, "clearTextPassword")
 316             ldb.modify(m)
 317             # this passes against s4
 318         except LdbError, (num, msg):
 319             # "NO_SUCH_ATTRIBUTE" is returned by Windows -> ignore it
 320             if num != ERR_NO_SUCH_ATTRIBUTE:
 321                 raise LdbError(num, msg)
 322
 323     def test_clearTextPassword_clear_change(self):
 324         print "Performs a password cleartext change operation on 'clearTextPassword'"
 325         # Notice: This never works against Windows - only supported by us
 326
 327         try:
 328             self.ldb2.modify_ldif("""
 329 dn: cn=testuser,cn=users,""" + self.base_dn + """
 330 changetype: modify
 331 delete: clearTextPassword
 332 clearTextPassword:: """ + base64.b64encode("thatsAcomplPASS1".encode('utf-16-le')) + """
 333 add: clearTextPassword
 334 clearTextPassword:: """ + base64.b64encode("thatsAcomplPASS2".encode('utf-16-le')) + """
 335 """)
 336             # this passes against s4
 337         except LdbError, (num, msg):
 338             # "NO_SUCH_ATTRIBUTE" is returned by Windows -> ignore it
 339             if num != ERR_NO_SUCH_ATTRIBUTE:
 340                 raise LdbError(num, msg)
 341
 342         # Wrong old password
 343         try:
 344             self.ldb2.modify_ldif("""
 345 dn: cn=testuser,cn=users,""" + self.base_dn + """
 346 changetype: modify
 347 delete: clearTextPassword
 348 clearTextPassword:: """ + base64.b64encode("thatsAcomplPASS3".encode('utf-16-le')) + """
 349 add: clearTextPassword
 350 clearTextPassword:: """ + base64.b64encode("thatsAcomplPASS4".encode('utf-16-le')) + """
 351 """)
 352             self.fail()
 353         except LdbError, (num, msg):
 354             # "NO_SUCH_ATTRIBUTE" is returned by Windows -> ignore it
 355             if num != ERR_NO_SUCH_ATTRIBUTE:
 356                 self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
 357                 self.assertTrue('00000056' in msg)
 358
 359         # A change to the same password again will not work (password history)
 360         try:
 361             self.ldb2.modify_ldif("""
 362 dn: cn=testuser,cn=users,""" + self.base_dn + """
 363 changetype: modify
 364 delete: clearTextPassword
 365 clearTextPassword:: """ + base64.b64encode("thatsAcomplPASS2".encode('utf-16-le')) + """
 366 add: clearTextPassword
 367 clearTextPassword:: """ + base64.b64encode("thatsAcomplPASS2".encode('utf-16-le')) + """
 368 """)
 369             self.fail()
 370         except LdbError, (num, msg):
 371             # "NO_SUCH_ATTRIBUTE" is returned by Windows -> ignore it
 372             if num != ERR_NO_SUCH_ATTRIBUTE:
 373                 self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
 374                 self.assertTrue('0000052D' in msg)
 375
 376     def test_failures(self):
 377         print "Performs some failure testing"
 378
 379         try:
 380             ldb.modify_ldif("""
 381 dn: cn=testuser,cn=users,""" + self.base_dn + """
 382 changetype: modify
 383 delete: userPassword
 384 userPassword: thatsAcomplPASS1
 385 """)
 386             self.fail()
 387         except LdbError, (num, _):
 388             self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
 389
 390         try:
 391             self.ldb2.modify_ldif("""
 392 dn: cn=testuser,cn=users,""" + self.base_dn + """
 393 changetype: modify
 394 delete: userPassword
 395 userPassword: thatsAcomplPASS1
 396 """)
 397             self.fail()
 398         except LdbError, (num, _):
 399             self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
 400
 401         try:
 402             ldb.modify_ldif("""
 403 dn: cn=testuser,cn=users,""" + self.base_dn + """
 404 changetype: modify
 405 delete: userPassword
 406 """)
 407             self.fail()
 408         except LdbError, (num, _):
 409             self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
 410
 411         try:
 412             self.ldb2.modify_ldif("""
 413 dn: cn=testuser,cn=users,""" + self.base_dn + """
 414 changetype: modify
 415 delete: userPassword
 416 """)
 417             self.fail()
 418         except LdbError, (num, _):
 419             self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
 420
 421         try:
 422             ldb.modify_ldif("""
 423 dn: cn=testuser,cn=users,""" + self.base_dn + """
 424 changetype: modify
 425 add: userPassword
 426 userPassword: thatsAcomplPASS1
 427 """)
 428             self.fail()
 429         except LdbError, (num, _):
 430             self.assertEquals(num, ERR_UNWILLING_TO_PERFORM)
 431
 432         try:
 433             self.ldb2.modify_ldif("""
 434 dn: cn=testuser,cn=users,""" + self.base_dn + """
 435 changetype: modify
 436 add: userPassword
 437 userPassword: thatsAcomplPASS1
 438 """)
 439             self.fail()
 440         except LdbError, (num, _):
 441             self.assertEquals(num, ERR_INSUFFICIENT_ACCESS_RIGHTS)
 442
 443         try:
 444             ldb.modify_ldif("""
 445 dn: cn=testuser,cn=users,""" + self.base_dn + """
 446 changetype: modify
 447 delete: userPassword
 448 userPassword: thatsAcomplPASS1
 449 add: userPassword
 450 userPassword: thatsAcomplPASS2
 451 userPassword: thatsAcomplPASS2
 452 """)
 453             self.fail()
 454         except LdbError, (num, _):
 455             self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
 456
 457         try:
 458             self.ldb2.modify_ldif("""
 459 dn: cn=testuser,cn=users,""" + self.base_dn + """
 460 changetype: modify
 461 delete: userPassword
 462 userPassword: thatsAcomplPASS1
 463 add: userPassword
 464 userPassword: thatsAcomplPASS2
 465 userPassword: thatsAcomplPASS2
 466 """)
 467             self.fail()
 468         except LdbError, (num, _):
 469             self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
 470
 471         try:
 472             ldb.modify_ldif("""
 473 dn: cn=testuser,cn=users,""" + self.base_dn + """
 474 changetype: modify
 475 delete: userPassword
 476 userPassword: thatsAcomplPASS1
 477 userPassword: thatsAcomplPASS1
 478 add: userPassword
 479 userPassword: thatsAcomplPASS2
 480 """)
 481             self.fail()
 482         except LdbError, (num, _):
 483             self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
 484
 485         try:
 486             self.ldb2.modify_ldif("""
 487 dn: cn=testuser,cn=users,""" + self.base_dn + """
 488 changetype: modify
 489 delete: userPassword
 490 userPassword: thatsAcomplPASS1
 491 userPassword: thatsAcomplPASS1
 492 add: userPassword
 493 userPassword: thatsAcomplPASS2
 494 """)
 495             self.fail()
 496         except LdbError, (num, _):
 497             self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
 498
 499         try:
 500             ldb.modify_ldif("""
 501 dn: cn=testuser,cn=users,""" + self.base_dn + """
 502 changetype: modify
 503 delete: userPassword
 504 userPassword: thatsAcomplPASS1
 505 add: userPassword
 506 userPassword: thatsAcomplPASS2
 507 add: userPassword
 508 userPassword: thatsAcomplPASS2
 509 """)
 510             self.fail()
 511         except LdbError, (num, _):
 512             self.assertEquals(num, ERR_UNWILLING_TO_PERFORM)
 513
 514         try:
 515             self.ldb2.modify_ldif("""
 516 dn: cn=testuser,cn=users,""" + self.base_dn + """
 517 changetype: modify
 518 delete: userPassword
 519 userPassword: thatsAcomplPASS1
 520 add: userPassword
 521 userPassword: thatsAcomplPASS2
 522 add: userPassword
 523 userPassword: thatsAcomplPASS2
 524 """)
 525             self.fail()
 526         except LdbError, (num, _):
 527             self.assertEquals(num, ERR_INSUFFICIENT_ACCESS_RIGHTS)
 528
 529         try:
 530             ldb.modify_ldif("""
 531 dn: cn=testuser,cn=users,""" + self.base_dn + """
 532 changetype: modify
 533 delete: userPassword
 534 userPassword: thatsAcomplPASS1
 535 delete: userPassword
 536 userPassword: thatsAcomplPASS1
 537 add: userPassword
 538 userPassword: thatsAcomplPASS2
 539 """)
 540             self.fail()
 541         except LdbError, (num, _):
 542             self.assertEquals(num, ERR_UNWILLING_TO_PERFORM)
 543
 544         try:
 545             self.ldb2.modify_ldif("""
 546 dn: cn=testuser,cn=users,""" + self.base_dn + """
 547 changetype: modify
 548 delete: userPassword
 549 userPassword: thatsAcomplPASS1
 550 delete: userPassword
 551 userPassword: thatsAcomplPASS1
 552 add: userPassword
 553 userPassword: thatsAcomplPASS2
 554 """)
 555             self.fail()
 556         except LdbError, (num, _):
 557             self.assertEquals(num, ERR_INSUFFICIENT_ACCESS_RIGHTS)
 558
 559         try:
 560             ldb.modify_ldif("""
 561 dn: cn=testuser,cn=users,""" + self.base_dn + """
 562 changetype: modify
 563 delete: userPassword
 564 userPassword: thatsAcomplPASS1
 565 add: userPassword
 566 userPassword: thatsAcomplPASS2
 567 replace: userPassword
 568 userPassword: thatsAcomplPASS3
 569 """)
 570             self.fail()
 571         except LdbError, (num, _):
 572             self.assertEquals(num, ERR_UNWILLING_TO_PERFORM)
 573
 574         try:
 575             self.ldb2.modify_ldif("""
 576 dn: cn=testuser,cn=users,""" + self.base_dn + """
 577 changetype: modify
 578 delete: userPassword
 579 userPassword: thatsAcomplPASS1
 580 add: userPassword
 581 userPassword: thatsAcomplPASS2
 582 replace: userPassword
 583 userPassword: thatsAcomplPASS3
 584 """)
 585             self.fail()
 586         except LdbError, (num, _):
 587             self.assertEquals(num, ERR_INSUFFICIENT_ACCESS_RIGHTS)
 588
 589         # Reverse order does work
 590         self.ldb2.modify_ldif("""
 591 dn: cn=testuser,cn=users,""" + self.base_dn + """
 592 changetype: modify
 593 add: userPassword
 594 userPassword: thatsAcomplPASS2
 595 delete: userPassword
 596 userPassword: thatsAcomplPASS1
 597 """)
 598
 599         try:
 600             self.ldb2.modify_ldif("""
 601 dn: cn=testuser,cn=users,""" + self.base_dn + """
 602 changetype: modify
 603 delete: userPassword
 604 userPassword: thatsAcomplPASS2
 605 add: unicodePwd
 606 unicodePwd:: """ + base64.b64encode("\"thatsAcomplPASS3\"".encode('utf-16-le')) + """
 607 """)
 608              # this passes against s4
 609         except LdbError, (num, _):
 610             self.assertEquals(num, ERR_ATTRIBUTE_OR_VALUE_EXISTS)
 611
 612         try:
 613             self.ldb2.modify_ldif("""
 614 dn: cn=testuser,cn=users,""" + self.base_dn + """
 615 changetype: modify
 616 delete: unicodePwd
 617 unicodePwd:: """ + base64.b64encode("\"thatsAcomplPASS3\"".encode('utf-16-le')) + """
 618 add: userPassword
 619 userPassword: thatsAcomplPASS4
 620 """)
 621              # this passes against s4
 622         except LdbError, (num, _):
 623             self.assertEquals(num, ERR_NO_SUCH_ATTRIBUTE)
 624
 625         # Several password changes at once are allowed
 626         ldb.modify_ldif("""
 627 dn: cn=testuser,cn=users,""" + self.base_dn + """
 628 changetype: modify
 629 replace: userPassword
 630 userPassword: thatsAcomplPASS1
 631 userPassword: thatsAcomplPASS2
 632 """)
 633
 634         # Several password changes at once are allowed
 635         ldb.modify_ldif("""
 636 dn: cn=testuser,cn=users,""" + self.base_dn + """
 637 changetype: modify
 638 replace: userPassword
 639 userPassword: thatsAcomplPASS1
 640 userPassword: thatsAcomplPASS2
 641 replace: userPassword
 642 userPassword: thatsAcomplPASS3
 643 replace: userPassword
 644 userPassword: thatsAcomplPASS4
 645 """)
 646
 647         # This surprisingly should work
 648         delete_force(self.ldb, "cn=testuser2,cn=users," + self.base_dn)
 649         self.ldb.add({
 650              "dn": "cn=testuser2,cn=users," + self.base_dn,
 651              "objectclass": "user",
 652              "userPassword": ["thatsAcomplPASS1", "thatsAcomplPASS2"] })
 653
 654         # This surprisingly should work
 655         delete_force(self.ldb, "cn=testuser2,cn=users," + self.base_dn)
 656         self.ldb.add({
 657              "dn": "cn=testuser2,cn=users," + self.base_dn,
 658              "objectclass": "user",
 659              "userPassword": ["thatsAcomplPASS1", "thatsAcomplPASS1"] })
 660
 661     def test_empty_passwords(self):
 662         print "Performs some empty passwords testing"
 663
 664         try:
 665             self.ldb.add({
 666                  "dn": "cn=testuser2,cn=users," + self.base_dn,
 667                  "objectclass": "user",
 668                  "unicodePwd": [] })
 669             self.fail()
 670         except LdbError, (num, _):
 671             self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
 672
 673         try:
 674             self.ldb.add({
 675                  "dn": "cn=testuser2,cn=users," + self.base_dn,
 676                  "objectclass": "user",
 677                  "dBCSPwd": [] })
 678             self.fail()
 679         except LdbError, (num, _):
 680             self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
 681
 682         try:
 683             self.ldb.add({
 684                  "dn": "cn=testuser2,cn=users," + self.base_dn,
 685                  "objectclass": "user",
 686                  "userPassword": [] })
 687             self.fail()
 688         except LdbError, (num, _):
 689             self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
 690
 691         try:
 692             self.ldb.add({
 693                  "dn": "cn=testuser2,cn=users," + self.base_dn,
 694                  "objectclass": "user",
 695                  "clearTextPassword": [] })
 696             self.fail()
 697         except LdbError, (num, _):
 698             self.assertTrue(num == ERR_CONSTRAINT_VIOLATION or
 699                             num == ERR_NO_SUCH_ATTRIBUTE) # for Windows
 700
 701         delete_force(self.ldb, "cn=testuser2,cn=users," + self.base_dn)
 702
 703         m = Message()
 704         m.dn = Dn(ldb, "cn=testuser,cn=users," + self.base_dn)
 705         m["unicodePwd"] = MessageElement([], FLAG_MOD_ADD, "unicodePwd")
 706         try:
 707             ldb.modify(m)
 708             self.fail()
 709         except LdbError, (num, _):
 710             self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
 711
 712         m = Message()
 713         m.dn = Dn(ldb, "cn=testuser,cn=users," + self.base_dn)
 714         m["dBCSPwd"] = MessageElement([], FLAG_MOD_ADD, "dBCSPwd")
 715         try:
 716             ldb.modify(m)
 717             self.fail()
 718         except LdbError, (num, _):
 719             self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
 720
 721         m = Message()
 722         m.dn = Dn(ldb, "cn=testuser,cn=users," + self.base_dn)
 723         m["userPassword"] = MessageElement([], FLAG_MOD_ADD, "userPassword")
 724         try:
 725             ldb.modify(m)
 726             self.fail()
 727         except LdbError, (num, _):
 728             self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
 729
 730         m = Message()
 731         m.dn = Dn(ldb, "cn=testuser,cn=users," + self.base_dn)
 732         m["clearTextPassword"] = MessageElement([], FLAG_MOD_ADD, "clearTextPassword")
 733         try:
 734             ldb.modify(m)
 735             self.fail()
 736         except LdbError, (num, _):
 737             self.assertTrue(num == ERR_CONSTRAINT_VIOLATION or
 738                             num == ERR_NO_SUCH_ATTRIBUTE) # for Windows
 739
 740         m = Message()
 741         m.dn = Dn(ldb, "cn=testuser,cn=users," + self.base_dn)
 742         m["unicodePwd"] = MessageElement([], FLAG_MOD_REPLACE, "unicodePwd")
 743         try:
 744             ldb.modify(m)
 745             self.fail()
 746         except LdbError, (num, _):
 747             self.assertEquals(num, ERR_UNWILLING_TO_PERFORM)
 748
 749         m = Message()
 750         m.dn = Dn(ldb, "cn=testuser,cn=users," + self.base_dn)
 751         m["dBCSPwd"] = MessageElement([], FLAG_MOD_REPLACE, "dBCSPwd")
 752         try:
 753             ldb.modify(m)
 754             self.fail()
 755         except LdbError, (num, _):
 756             self.assertEquals(num, ERR_UNWILLING_TO_PERFORM)
 757
 758         m = Message()
 759         m.dn = Dn(ldb, "cn=testuser,cn=users," + self.base_dn)
 760         m["userPassword"] = MessageElement([], FLAG_MOD_REPLACE, "userPassword")
 761         try:
 762             ldb.modify(m)
 763             self.fail()
 764         except LdbError, (num, _):
 765             self.assertEquals(num, ERR_UNWILLING_TO_PERFORM)
 766
 767         m = Message()
 768         m.dn = Dn(ldb, "cn=testuser,cn=users," + self.base_dn)
 769         m["clearTextPassword"] = MessageElement([], FLAG_MOD_REPLACE, "clearTextPassword")
 770         try:
 771             ldb.modify(m)
 772             self.fail()
 773         except LdbError, (num, _):
 774             self.assertTrue(num == ERR_UNWILLING_TO_PERFORM or
 775                             num == ERR_NO_SUCH_ATTRIBUTE) # for Windows
 776
 777         m = Message()
 778         m.dn = Dn(ldb, "cn=testuser,cn=users," + self.base_dn)
 779         m["unicodePwd"] = MessageElement([], FLAG_MOD_DELETE, "unicodePwd")
 780         try:
 781             ldb.modify(m)
 782             self.fail()
 783         except LdbError, (num, _):
 784             self.assertEquals(num, ERR_UNWILLING_TO_PERFORM)
 785
 786         m = Message()
 787         m.dn = Dn(ldb, "cn=testuser,cn=users," + self.base_dn)
 788         m["dBCSPwd"] = MessageElement([], FLAG_MOD_DELETE, "dBCSPwd")
 789         try:
 790             ldb.modify(m)
 791             self.fail()
 792         except LdbError, (num, _):
 793             self.assertEquals(num, ERR_UNWILLING_TO_PERFORM)
 794
 795         m = Message()
 796         m.dn = Dn(ldb, "cn=testuser,cn=users," + self.base_dn)
 797         m["userPassword"] = MessageElement([], FLAG_MOD_DELETE, "userPassword")
 798         try:
 799             ldb.modify(m)
 800             self.fail()
 801         except LdbError, (num, _):
 802             self.assertEquals(num, ERR_CONSTRAINT_VIOLATION)
 803
 804         m = Message()
 805         m.dn = Dn(ldb, "cn=testuser,cn=users," + self.base_dn)
 806         m["clearTextPassword"] = MessageElement([], FLAG_MOD_DELETE, "clearTextPassword")
 807         try:
 808             ldb.modify(m)
 809             self.fail()
 810         except LdbError, (num, _):
 811             self.assertTrue(num == ERR_CONSTRAINT_VIOLATION or
 812                             num == ERR_NO_SUCH_ATTRIBUTE) # for Windows
 813
 814     def test_plain_userPassword(self):
 815         print "Performs testing about the standard 'userPassword' behaviour"
 816
 817         # Delete the "dSHeuristics"
 818         ldb.set_dsheuristics(None)
 819
 820         time.sleep(1) # This switching time is strictly needed!
 821
 822         m = Message()
 823         m.dn = Dn(ldb, "cn=testuser,cn=users," + self.base_dn)
 824         m["userPassword"] = MessageElement("myPassword", FLAG_MOD_ADD,
 825           "userPassword")
 826         ldb.modify(m)
 827
 828         res = ldb.search("cn=testuser,cn=users," + self.base_dn,
 829                          scope=SCOPE_BASE, attrs=["userPassword"])
 830         self.assertTrue(len(res) == 1)
 831         self.assertTrue("userPassword" in res[0])
 832         self.assertEquals(res[0]["userPassword"][0], "myPassword")
 833
 834         m = Message()
 835         m.dn = Dn(ldb, "cn=testuser,cn=users," + self.base_dn)
 836         m["userPassword"] = MessageElement("myPassword2", FLAG_MOD_REPLACE,
 837           "userPassword")
 838         ldb.modify(m)
 839
 840         res = ldb.search("cn=testuser,cn=users," + self.base_dn,
 841                          scope=SCOPE_BASE, attrs=["userPassword"])
 842         self.assertTrue(len(res) == 1)
 843         self.assertTrue("userPassword" in res[0])
 844         self.assertEquals(res[0]["userPassword"][0], "myPassword2")
 845
 846         m = Message()
 847         m.dn = Dn(ldb, "cn=testuser,cn=users," + self.base_dn)
 848         m["userPassword"] = MessageElement([], FLAG_MOD_DELETE,
 849           "userPassword")
 850         ldb.modify(m)
 851
 852         res = ldb.search("cn=testuser,cn=users," + self.base_dn,
 853                          scope=SCOPE_BASE, attrs=["userPassword"])
 854         self.assertTrue(len(res) == 1)
 855         self.assertFalse("userPassword" in res[0])
 856
 857         # Set the test "dSHeuristics" to deactivate "userPassword" pwd changes
 858         ldb.set_dsheuristics("000000000")
 859
 860         m = Message()
 861         m.dn = Dn(ldb, "cn=testuser,cn=users," + self.base_dn)
 862         m["userPassword"] = MessageElement("myPassword3", FLAG_MOD_REPLACE,
 863           "userPassword")
 864         ldb.modify(m)
 865
 866         res = ldb.search("cn=testuser,cn=users," + self.base_dn,
 867                          scope=SCOPE_BASE, attrs=["userPassword"])
 868         self.assertTrue(len(res) == 1)
 869         self.assertTrue("userPassword" in res[0])
 870         self.assertEquals(res[0]["userPassword"][0], "myPassword3")
 871
 872         # Set the test "dSHeuristics" to deactivate "userPassword" pwd changes
 873         ldb.set_dsheuristics("000000002")
 874
 875         m = Message()
 876         m.dn = Dn(ldb, "cn=testuser,cn=users," + self.base_dn)
 877         m["userPassword"] = MessageElement("myPassword4", FLAG_MOD_REPLACE,
 878           "userPassword")
 879         ldb.modify(m)
 880
 881         res = ldb.search("cn=testuser,cn=users," + self.base_dn,
 882                          scope=SCOPE_BASE, attrs=["userPassword"])
 883         self.assertTrue(len(res) == 1)
 884         self.assertTrue("userPassword" in res[0])
 885         self.assertEquals(res[0]["userPassword"][0], "myPassword4")
 886
 887         # Reset the test "dSHeuristics" (reactivate "userPassword" pwd changes)
 888         ldb.set_dsheuristics("000000001")
 889
 890     def test_zero_length(self):
 891         # Get the old "minPwdLength"
 892         minPwdLength = ldb.get_minPwdLength()
 893         # Set it temporarely to "0"
 894         ldb.set_minPwdLength("0")
 895
 896         # Get the old "pwdProperties"
 897         pwdProperties = ldb.get_pwdProperties()
 898         # Set them temporarely to "0" (to deactivate eventually the complexity)
 899         ldb.set_pwdProperties("0")
 900
 901         ldb.setpassword("(sAMAccountName=testuser)", "")
 902
 903         # Reset the "pwdProperties" as they were before
 904         ldb.set_pwdProperties(pwdProperties)
 905
 906         # Reset the "minPwdLength" as it was before
 907         ldb.set_minPwdLength(minPwdLength)
 908
 909     def tearDown(self):
 910         super(PasswordTests, self).tearDown()
 911         delete_force(self.ldb, "cn=testuser,cn=users," + self.base_dn)
 912         delete_force(self.ldb, "cn=testuser2,cn=users," + self.base_dn)
 913         # Close the second LDB connection (with the user credentials)
 914         self.ldb2 = None
 915
 916 if not "://" in host:
 917     if os.path.isfile(host):
 918         host = "tdb://%s" % host
 919     else:
 920         host = "ldap://%s" % host
 921
 922 ldb = SamDB(url=host, session_info=system_session(lp), credentials=creds, lp=lp)
 923
 924 # Gets back the basedn
 925 base_dn = ldb.domain_dn()
 926
 927 # Gets back the configuration basedn
 928 configuration_dn = ldb.get_config_basedn().get_linearized()
 929
 930 # Get the old "dSHeuristics" if it was set
 931 dsheuristics = ldb.get_dsheuristics()
 932
 933 # Set the "dSHeuristics" to activate the correct "userPassword" behaviour
 934 ldb.set_dsheuristics("000000001")
 935
 936 # Get the old "minPwdAge"
 937 minPwdAge = ldb.get_minPwdAge()
 938
 939 # Set it temporarely to "0"
 940 ldb.set_minPwdAge("0")
 941
 942 runner = SubunitTestRunner()
 943 rc = 0
 944 if not runner.run(unittest.makeSuite(PasswordTests)).wasSuccessful():
 945     rc = 1
 946
 947 # Reset the "dSHeuristics" as they were before
 948 ldb.set_dsheuristics(dsheuristics)
 949
 950 # Reset the "minPwdAge" as it was before
 951 ldb.set_minPwdAge(minPwdAge)
 952
 953 sys.exit(rc)