CatalogTool.py 42 KB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044
##############################################################################
#
# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
#
# WARNING: This program as such is intended to be used by professional
# programmers who take the whole responsability of assessing all potential
# consequences resulting from its eventual inadequacies and bugs
# End users who are looking for a ready-to-use solution with commercial
# garantees and support are strongly adviced to contract a Free Software
# Service Company
#
# This program is Free Software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
#
##############################################################################

import sys
from copy import deepcopy
from collections import defaultdict
from Products.CMFCore.CatalogTool import CatalogTool as CMFCoreCatalogTool
from Products.ZSQLCatalog.ZSQLCatalog import ZCatalog
from Products.ZSQLCatalog.SQLCatalog import Query, ComplexQuery, SimpleQuery
from Products.ERP5Type import Permissions
from AccessControl import ClassSecurityInfo, getSecurityManager
from AccessControl.User import system as system_user
from Products.CMFCore.utils import UniqueObject, _getAuthenticatedUser, getToolByName
from Products.ERP5Type.Globals import InitializeClass, DTMLFile
from Acquisition import aq_base, aq_inner, aq_parent, ImplicitAcquisitionWrapper
from Products.CMFActivity.ActiveObject import ActiveObject
from Products.CMFActivity.ActivityTool import GroupedMessage
from Products.ERP5Type.TransactionalVariable import getTransactionalVariable

from AccessControl.PermissionRole import rolesForPermissionOn

from MethodObject import Method

from Products.ERP5Security import mergedLocalRoles
from Products.ERP5Security.ERP5UserManager import SUPER_USER
from Products.ERP5Type.Utils import sqlquote

import warnings
from zLOG import LOG, PROBLEM, WARNING, INFO

ACQUIRE_PERMISSION_VALUE = []
DYNAMIC_METHOD_NAME = 'z_related_'
DYNAMIC_METHOD_NAME_LEN = len(DYNAMIC_METHOD_NAME)
STRICT_DYNAMIC_METHOD_NAME = DYNAMIC_METHOD_NAME + 'strict_'
STRICT_DYNAMIC_METHOD_NAME_LEN = len(STRICT_DYNAMIC_METHOD_NAME)
RELATED_DYNAMIC_METHOD_NAME = '_related'
# Negative as it's used as a slice end offset
RELATED_DYNAMIC_METHOD_NAME_LEN = -len(RELATED_DYNAMIC_METHOD_NAME)
ZOPE_SECURITY_SUFFIX = '__roles__'

class IndexableObjectWrapper(object):

    def __init__(self, ob):
        self.__ob = ob

    def __getattr__(self, name):
        return getattr(self.__ob, name)

    # We need to update the uid during the cataloging process
    uid = property(lambda self: self.__ob.getUid(),
                   lambda self, value: setattr(self.__ob, 'uid', value))

    def _getSecurityParameterList(self):
      result = self.__dict__.get('_cache_result', None)
      if result is None:
        ob = self.__ob
        # For each group or user, we have a list of roles, this list
        # give in this order : [roles on object, roles acquired on the parent,
        # roles acquired on the parent of the parent....]
        # So if we have ['-Author','Author'] we should remove the role 'Author'
        # but if we have ['Author','-Author'] we have to keep the role 'Author'
        localroles = {}
        skip_role_set = set()
        skip_role = skip_role_set.add
        clear_skip_role = skip_role_set.clear
        for key, role_list in mergedLocalRoles(ob).iteritems():
          new_role_list = []
          new_role = new_role_list.append
          clear_skip_role()
          for role in role_list:
            if role[:1] == '-':
              skip_role(role[1:])
            elif role not in skip_role_set:
              new_role(role)
          if len(new_role_list)>0:
            localroles[key] = new_role_list

        portal = ob.getPortalObject()
        role_dict = dict(portal.portal_catalog.getSQLCatalog().\
                                              getSQLCatalogRoleKeysList())
        getUserById = portal.acl_users.getUserById

        allowed_dict = {}

        # For each local role of a user:
        #   If the local role grants View permission, add it.
        # Every addition implies 2 lines:
        #   user:<user_id>
        #   user:<user_id>:<role_id>
        # A line must not be present twice in final result.
        allowed_role_set = set(rolesForPermissionOn('View', ob))
        # XXX the permission name is included by default for verbose
        # logging of security errors, but the catalog does not need to
        # index it. Unfortunately, rolesForPermissionOn does not have
        # an option to disable this behavior at calling time, so
        # discard it explicitly.
        allowed_role_set.discard('_View_Permission')
        # XXX Owner is hardcoded, in order to prevent searching for user on the
        # site root.
        allowed_role_set.discard('Owner')

        # XXX make this a method of base ?
        local_roles_group_id_group_id = deepcopy(getattr(ob,
          '__ac_local_roles_group_id_dict__', {}))

        # If we acquire a permission, then we also want to acquire the local
        # roles group ids
        local_roles_container = ob
        while getattr(local_roles_container, 'isRADContent', 0):
          if local_roles_container._getAcquireLocalRoles():
            local_roles_container = local_roles_container.aq_parent
            for role_definition_group, user_and_role_list in \
                getattr(local_roles_container,
                        '__ac_local_roles_group_id_dict__',
                        {}).items():
              local_roles_group_id_group_id.setdefault(role_definition_group, set()
                ).update(user_and_role_list)
          else:
            break

        allowed_by_local_roles_group_id = {}
        allowed_by_local_roles_group_id[''] = allowed_role_set

        user_role_dict = {}
        user_view_permission_role_dict = {}
        optimized_role_set = set()
        # First parse optimized roles and build optimized_role_set
        for role_definition_group, user_and_role_list in local_roles_group_id_group_id.items():
          group_allowed_set = allowed_by_local_roles_group_id.setdefault(
            role_definition_group, set())
          for user, role in user_and_role_list:
            if role in allowed_role_set:
              prefix = 'user:' + user
              group_allowed_set.update((prefix, '%s:%s' % (prefix, role)))
              optimized_role_set.add((user, role))

        # Then parse other roles
        for user, roles in localroles.iteritems():
          prefix = 'user:' + user
          for role in roles:
            if (role in role_dict) and (getUserById(user) is not None):
              # If role is monovalued, check if key is a user.
              # If not, continue to index it in roles_and_users table.
              if (user, role) not in optimized_role_set:
                user_role_dict[role] = user # Only add to user_role_dict if not in optimized_role_set (double check)
              if role in allowed_role_set:
                user_view_permission_role_dict[role] = user
            elif role in allowed_role_set:
              for group in local_roles_group_id_group_id.get(user, ('', )):
                group_allowed_set = allowed_by_local_roles_group_id.setdefault(
                  group, set())
                if (user, role) not in optimized_role_set:
                  # add only if not already added to optimized_role_set to avoid polluting indexation table
                  group_allowed_set.update((prefix, '%s:%s' % (prefix, role)))

        # sort `allowed` principals
        sorted_allowed_by_local_roles_group_id = {}
        for local_roles_group_id, allowed in \
                allowed_by_local_roles_group_id.items():
          sorted_allowed_by_local_roles_group_id[local_roles_group_id] = tuple(
            sorted(allowed))

        self._cache_result = result = (sorted_allowed_by_local_roles_group_id,
                                       user_role_dict,
                                       user_view_permission_role_dict)
      return result

    def getLocalRolesGroupIdDict(self):
      """Returns a mapping of local roles group id to roles and users with View
      permission.
      """
      return self._getSecurityParameterList()[0]

    def getAssignee(self):
      """Returns the user ID of the user with 'Assignee' local role on this
      document.

      If there is more than one Assignee local role, the result is undefined.
      """
      return self._getSecurityParameterList()[1].get('Assignee', None)

    def getViewPermissionAssignee(self):
      """Returns the user ID of the user with 'Assignee' local role on this
      document, if the Assignee role has View permission.

      If there is more than one Assignee local role, the result is undefined.
      """
      return self._getSecurityParameterList()[2].get('Assignee', None)

    def getViewPermissionAssignor(self):
      """Returns the user ID of the user with 'Assignor' local role on this
      document, if the Assignor role has View permission.

      If there is more than one Assignor local role, the result is undefined.
      """
      return self._getSecurityParameterList()[2].get('Assignor', None)

    def getViewPermissionAssociate(self):
      """Returns the user ID of the user with 'Associate' local role on this
      document, if the Associate role has View permission.

      If there is more than one Associate local role, the result is undefined.
      """
      return self._getSecurityParameterList()[2].get('Associate', None)

    def __repr__(self):
      return '<Products.ERP5Catalog.CatalogTool.IndexableObjectWrapper'\
          ' for %s>' % ('/'.join(self.__ob.getPhysicalPath()), )


class RelatedBaseCategory(Method):
    """A Dynamic Method to act as a related key.
    """
    def __init__(self, id, strict_membership=0, related=0):
      self._id = id
      if strict_membership:
        strict = 'AND %(category_table)s.category_strict_membership = 1\n'
      else:
        strict = ''
      # From the point of view of query_table, we are looking up objects...
      if related:
        # ... which have a relation toward us
        # query_table's uid = category table's category_uid
        query_table_side = 'category_uid'
        # category table's uid = foreign_table's uid
        foreign_side = 'uid'
      else:
        # ... toward which we have a relation
        # query_table's uid = category table's uid
        query_table_side = 'uid'
        # category table's category_uid = foreign_table's uid
        foreign_side = 'category_uid'
      self._template = """\
%%(category_table)s.base_category_uid = %%(base_category_uid)s
%(strict)sAND %%(foreign_catalog)s.uid = %%(category_table)s.%(foreign_side)s
%%(RELATED_QUERY_SEPARATOR)s
%%(category_table)s.%(query_table_side)s = %%(query_table)s.uid""" % {
          'strict': strict,
          'foreign_side': foreign_side,
          'query_table_side': query_table_side,
      }
      self._monotable_template = """\
%%(category_table)s.base_category_uid = %%(base_category_uid)s
%(strict)sAND %%(category_table)s.%(query_table_side)s = %%(query_table)s.uid""" % {
          'strict': strict,
          'query_table_side': query_table_side,
      }

    def __call__(self, instance, table_0, table_1=None, query_table='catalog',
        RELATED_QUERY_SEPARATOR=' AND ', **kw):
      """Create the sql code for this related key."""
      # Note: in normal conditions, our category's uid will not change from
      # one invocation to the next.
      return (
        self._monotable_template if table_1 is None else self._template
      ) % {
        'base_category_uid': instance.getPortalObject().portal_categories.\
          _getOb(self._id).getUid(),
        'query_table': query_table,
        'category_table': table_0,
        'foreign_catalog': table_1,
        'RELATED_QUERY_SEPARATOR': RELATED_QUERY_SEPARATOR,
      }

class CatalogTool (UniqueObject, ZCatalog, CMFCoreCatalogTool, ActiveObject):
    """
    This is a ZSQLCatalog that filters catalog queries.
    It is based on ZSQLCatalog
    """
    id = 'portal_catalog'
    meta_type = 'ERP5 Catalog'
    security = ClassSecurityInfo()

    default_result_limit = None
    default_count_limit = 1

    manage_options = ({ 'label' : 'Overview', 'action' : 'manage_overview' },
                     ) + ZCatalog.manage_options

    def __init__(self):
        ZCatalog.__init__(self, self.getId())

    # Explicit Inheritance
    __url = CMFCoreCatalogTool.__url
    manage_catalogFind = CMFCoreCatalogTool.manage_catalogFind

    security.declareProtected(Permissions.ManagePortal
                , 'manage_schema')
    manage_schema = DTMLFile('dtml/manageSchema', globals())

    def getPreferredSQLCatalogId(self, id=None):
      """
      Get the SQL Catalog from preference.
      """
      if id is None:
        # Check if we want to use an archive
        #if getattr(aq_base(self.portal_preferences), 'uid', None) is not None:
        archive_path = self.portal_preferences.getPreferredArchive(sql_catalog_id=self.default_sql_catalog_id)
        if archive_path not in ('', None):
          try:
            archive = self.restrictedTraverse(archive_path)
          except KeyError:
            # Do not fail if archive object has been removed,
            # but preference is not up to date
            return None
          if archive is not None:
            catalog_id = archive.getCatalogId()
            if catalog_id not in ('', None):
              return catalog_id
        return None
      else:
        return id

    def _listAllowedRolesAndUsers(self, user):
        # We use ERP5Security PAS based authentication
        try:
          # check for proxy role in stack
          eo = getSecurityManager()._context.stack[-1]
          proxy_roles = getattr(eo, '_proxy_roles',None)
        except IndexError:
          proxy_roles = None
        if proxy_roles:
          # apply proxy roles
          user = eo.getOwner()
          result = list(proxy_roles)
        else:
          result = list(user.getRoles())
        result.append('Anonymous')
        result.append('user:%s' % user.getId())
        # deal with groups
        getGroups = getattr(user, 'getGroups', None)
        if getGroups is not None:
            groups = list(user.getGroups())
            groups.append('role:Anonymous')
            if 'Authenticated' in result:
                groups.append('role:Authenticated')
            for group in groups:
                result.append('user:%s' % group)
        # end groups
        return result

    # Schema Management
    def editColumn(self, column_id, sql_definition, method_id, default_value, REQUEST=None, RESPONSE=None):
      """
        Modifies a schema column of the catalog
      """
      new_schema = []
      for c in self.getIndexList():
        if c.id == index_id:
          new_c = {'id': index_id, 'sql_definition': sql_definition, 'method_id': method_id, 'default_value': default_value}
        else:
          new_c = c
        new_schema.append(new_c)
      self.setColumnList(new_schema)

    def setColumnList(self, column_list):
      """
      """
      self._sql_schema = column_list

    def getColumnList(self):
      """
      """
      if not hasattr(self, '_sql_schema'): self._sql_schema = []
      return self._sql_schema

    def getColumn(self, column_id):
      """
      """
      for c in self.getColumnList():
        if c.id == column_id:
          return c
      return None

    def editIndex(self, index_id, sql_definition, REQUEST=None, RESPONSE=None):
      """
        Modifies the schema of the catalog
      """
      new_index = []
      for c in self.getIndexList():
        if c.id == index_id:
          new_c = {'id': index_id, 'sql_definition': sql_definition}
        else:
          new_c = c
        new_index.append(new_c)
      self.setIndexList(new_index)

    def setIndexList(self, index_list):
      """
      """
      self._sql_index = index_list

    def getIndexList(self):
      """
      """
      if not hasattr(self, '_sql_index'): self._sql_index = []
      return self._sql_index

    def getIndex(self, index_id):
      """
      """
      for c in self.getIndexList():
        if c.id == index_id:
          return c
      return None


    security.declarePublic('getAllowedRolesAndUsers')
    def getAllowedRolesAndUsers(self, sql_catalog_id=None, **kw):
      """
        Return allowed roles and users.

        This is supposed to be used with Z SQL Methods to check permissions
        when you list up documents. It is also able to take into account
        a parameter named local_roles so that listed documents only include
        those documents for which the user (or the group) was
        associated one of the given local roles.

        The use of getAllowedRolesAndUsers is deprecated, you should use
        getSecurityQuery instead
      """
      user = _getAuthenticatedUser(self)
      user_str = str(user)
      user_is_superuser = (user == system_user) or (user_str == SUPER_USER)
      allowedRolesAndUsers = self._listAllowedRolesAndUsers(user)
      role_column_dict = {}
      local_role_column_dict = {}
      catalog = self.getSQLCatalog(sql_catalog_id)
      column_map = catalog.getColumnMap()

      # We only consider here the Owner role (since it was not indexed)
      # since some objects may only be visible by their owner
      # which was not indexed
      for role, column_id in catalog.getSQLCatalogRoleKeysList():
        # XXX This should be a list
        if not user_is_superuser:
          try:
            # if called by an executable with proxy roles, we don't use
            # owner, but only roles from the proxy.
            eo = getSecurityManager()._context.stack[-1]
            proxy_roles = getattr(eo, '_proxy_roles', None)
            if not proxy_roles:
              role_column_dict[column_id] = user_str
          except IndexError:
            role_column_dict[column_id] = user_str

      # Patch for ERP5 by JP Smets in order
      # to implement worklists and search of local roles
      local_roles = kw.get('local_roles', None)
      if local_roles:
        local_role_dict = dict(catalog.getSQLCatalogLocalRoleKeysList())
        role_dict = dict(catalog.getSQLCatalogRoleKeysList())
        # XXX user is not enough - we should also include groups of the user
        new_allowedRolesAndUsers = []
        new_role_column_dict = {}
        # Turn it into a list if necessary according to ';' separator
        if isinstance(local_roles, str):
          local_roles = local_roles.split(';')
        # Local roles now has precedence (since it comes from a WorkList)
        for user_or_group in allowedRolesAndUsers:
          for role in local_roles:
            # Performance optimisation
            if local_role_dict.has_key(role):
              # XXX This should be a list
              # If a given role exists as a column in the catalog,
              # then it is considered as single valued and indexed
              # through the catalog.
              if not user_is_superuser:
                # XXX This should be a list
                # which also includes all user groups
                column_id = local_role_dict[role]
                local_role_column_dict[column_id] = user_str
            if role_dict.has_key(role):
              # XXX This should be a list
              # If a given role exists as a column in the catalog,
              # then it is considered as single valued and indexed
              # through the catalog.
              if not user_is_superuser:
                # XXX This should be a list
                # which also includes all user groups
                column_id = role_dict[role]
                new_role_column_dict[column_id] = user_str
            new_allowedRolesAndUsers.append('%s:%s' % (user_or_group, role))
        if local_role_column_dict == {}:
          allowedRolesAndUsers = new_allowedRolesAndUsers
          role_column_dict = new_role_column_dict

      return allowedRolesAndUsers, role_column_dict, local_role_column_dict

    def getSecurityUidDictAndRoleColumnDict(self, sql_catalog_id=None, **kw):
      """
        Return a dict of local_roles_group_id -> security Uids and a
        dictionnary containing available role columns.

        XXX: This method always uses default catalog. This should not break a
        site as long as security uids are considered consistent among all
        catalogs.
      """
      allowedRolesAndUsers, role_column_dict, local_role_column_dict = \
          self.getAllowedRolesAndUsers(**kw)
      catalog = self.getSQLCatalog(sql_catalog_id)
      method = getattr(catalog, catalog.sql_search_security, None)
      if allowedRolesAndUsers:
        allowedRolesAndUsers.sort()
        cache_key = tuple(allowedRolesAndUsers)
        tv = getTransactionalVariable()
        try:
          security_uid_cache = tv['getSecurityUidDictAndRoleColumnDict']
        except KeyError:
          security_uid_cache = tv['getSecurityUidDictAndRoleColumnDict'] = {}
        try:
          security_uid_dict = security_uid_cache[cache_key]
        except KeyError:
          if method is None:
            warnings.warn("The usage of allowedRolesAndUsers is "\
                          "deprecated. Please update your catalog "\
                          "business template.", DeprecationWarning)
            security_uid_dict = {None: [x.security_uid for x in \
              self.unrestrictedSearchResults(
                allowedRolesAndUsers=allowedRolesAndUsers,
                select_expression="security_uid",
                group_by_expression="security_uid")] }
          else:
            # XXX: What with this string transformation ?! Souldn't it be done in
            # dtml instead ? ... yes, but how to be bw compatible ?
            allowedRolesAndUsers = [sqlquote(role) for role in allowedRolesAndUsers]

            security_uid_dict = defaultdict(list)
            for brain in method(security_roles_list=allowedRolesAndUsers):
              security_uid_dict[getattr(brain, 'local_roles_group_id', '')
                ].append(brain.uid)

          security_uid_cache[cache_key] = security_uid_dict
      else:
        security_uid_dict = []
      return security_uid_dict, role_column_dict, local_role_column_dict

    security.declarePublic('getSecurityQuery')
    def getSecurityQuery(self, query=None, sql_catalog_id=None, **kw):
      """
        Build a query based on allowed roles or on a list of security_uid
        values. The query takes into account the fact that some roles are
        catalogued with columns.
      """
      user = _getAuthenticatedUser(self)
      user_str = str(user)
      user_is_superuser = (user == system_user) or (user_str == SUPER_USER)
      if user_is_superuser:
        # We need no security check for super user.
        return query
      original_query = query
      security_uid_dict, role_column_dict, local_role_column_dict = \
          self.getSecurityUidDictAndRoleColumnDict(sql_catalog_id=sql_catalog_id, **kw)

      role_query = None
      security_uid_query = None
      if role_column_dict:
        query_list = []
        for key, value in role_column_dict.items():
          new_query = Query(**{key : value})
          query_list.append(new_query)
        operator_kw = {'operator': 'OR'}
        role_query = ComplexQuery(*query_list, **operator_kw)
      if security_uid_dict:
        catalog_security_uid_groups_columns_dict = \
            self.getSQLCatalog().getSQLCatalogSecurityUidGroupsColumnsDict()

        query_list = []
        for local_roles_group_id, security_uid_list in\
                 security_uid_dict.iteritems():
          assert security_uid_list
          query_list.append(Query(**{
            catalog_security_uid_groups_columns_dict[local_roles_group_id]:
                  security_uid_list,
            'operator': 'IN'}))

        security_uid_query = ComplexQuery(*query_list, operator='OR')

      if role_query:
        if security_uid_query:
          # merge
          query = ComplexQuery(security_uid_query, role_query, operator='OR')
        else:
          query = role_query
      elif security_uid_query:
        query = security_uid_query

      else:
        # XXX A false query has to be generated.
        # As it is not possible to use SQLKey for now, pass impossible value
        # on uid (which will be detected as False by MySQL, as it is not in the
        # column range)
        # Do not pass security_uid_list as empty in order to prevent useless
        # overhead
        query = Query(uid=-1)

      if local_role_column_dict:
        query_list = []
        for key, value in local_role_column_dict.items():
          new_query = Query(**{key : value})
          query_list.append(new_query)
        operator_kw = {'operator': 'AND'}
        local_role_query = ComplexQuery(*query_list, **operator_kw)
        query = ComplexQuery(query, local_role_query, operator='AND')

      if original_query is not None:
        query = ComplexQuery(query, original_query, operator='AND')
      return query

    # searchResults has inherited security assertions.
    def searchResults(self, query=None, **kw):
        """
        Calls ZCatalog.searchResults with extra arguments that
        limit the results to what the user is allowed to see.
        """
        #if not _checkPermission(
        #    Permissions.AccessInactivePortalContent, self):
        #    now = DateTime()
        #    kw[ 'effective' ] = { 'query' : now, 'range' : 'max' }
        #    kw[ 'expires'   ] = { 'query' : now, 'range' : 'min' }

        catalog_id = self.getPreferredSQLCatalogId(kw.pop("sql_catalog_id", None))
        query = self.getSecurityQuery(query=query, sql_catalog_id=catalog_id, **kw)
        kw.setdefault('limit', self.default_result_limit)
        # get catalog from preference
        #LOG("searchResult", INFO, catalog_id)
        #         LOG("searchResult", INFO, ZCatalog.searchResults(self, query=query, sql_catalog_id=catalog_id, src__=1, **kw))
        return ZCatalog.searchResults(self, query=query, sql_catalog_id=catalog_id, **kw)

    __call__ = searchResults

    security.declarePrivate('unrestrictedSearchResults')
    def unrestrictedSearchResults(self, REQUEST=None, **kw):
        """Calls ZSQLCatalog.searchResults directly without restrictions.
        """
        kw.setdefault('limit', self.default_result_limit)
        return ZCatalog.searchResults(self, REQUEST, **kw)

    # We use a string for permissions here due to circular reference in import
    # from ERP5Type.Permissions
    security.declareProtected('Search ZCatalog', 'getResultValue')
    def getResultValue(self, query=None, **kw):
        """
        A method to factor common code used to search a single
        object in the database.
        """
        kw.setdefault('limit', 1)
        result = self.searchResults(query=query, **kw)
        try:
          return result[0].getObject()
        except IndexError:
          return None

    security.declarePrivate('unrestrictedGetResultValue')
    def unrestrictedGetResultValue(self, query=None, **kw):
        """
        A method to factor common code used to search a single
        object in the database. Same as getResultValue but without
        taking into account security.
        """
        kw.setdefault('limit', 1)
        result = self.unrestrictedSearchResults(query=query, **kw)
        try:
          return result[0].getObject()
        except IndexError:
          return None

    def countResults(self, query=None, **kw):
        """
            Calls ZCatalog.countResults with extra arguments that
            limit the results to what the user is allowed to see.
        """
        # XXX This needs to be set again
        #if not _checkPermission(
        #    Permissions.AccessInactivePortalContent, self):
        #    base = aq_base(self)
        #    now = DateTime()
        #    #kw[ 'effective' ] = { 'query' : now, 'range' : 'max' }
        #    #kw[ 'expires'   ] = { 'query' : now, 'range' : 'min' }
        catalog_id = self.getPreferredSQLCatalogId(kw.pop("sql_catalog_id", None))
        query = self.getSecurityQuery(query=query, sql_catalog_id=catalog_id, **kw)
        kw.setdefault('limit', self.default_count_limit)
        # get catalog from preference
        return ZCatalog.countResults(self, query=query, sql_catalog_id=catalog_id, **kw)

    security.declarePrivate('unrestrictedCountResults')
    def unrestrictedCountResults(self, REQUEST=None, **kw):
        """Calls ZSQLCatalog.countResults directly without restrictions.
        """
        return ZCatalog.countResults(self, REQUEST, **kw)

    def wrapObject(self, object, sql_catalog_id=None, **kw):
        """
          Return a wrapped object for reindexing.
        """
        catalog = self.getSQLCatalog(sql_catalog_id)
        if catalog is None:
          # Nothing to do.
          LOG('wrapObject', 0, 'Warning: catalog is not available')
          return (None, None)

        document_object = aq_inner(object)
        w = IndexableObjectWrapper(document_object)

        wf = getToolByName(self, 'portal_workflow')
        if wf is not None:
          w.__dict__.update(wf.getCatalogVariablesFor(object))

        # Find the parent definition for security
        is_acquired = 0
        while getattr(document_object, 'isRADContent', 0):
          # This condition tells which object should acquire
          # from their parent.
          # XXX Hardcode _View_Permission for a performance point of view
          if getattr(aq_base(document_object), '_View_Permission', ACQUIRE_PERMISSION_VALUE) == ACQUIRE_PERMISSION_VALUE\
             and document_object._getAcquireLocalRoles():
            document_object = document_object.aq_parent
            is_acquired = 1
          else:
            break
        if is_acquired:
          document_w = IndexableObjectWrapper(document_object)
        else:
          document_w = w

        (security_uid_dict, optimised_roles_and_users) = \
              catalog.getSecurityUidDict(document_w)


        w.optimised_roles_and_users = optimised_roles_and_users

        catalog_security_uid_groups_columns_dict = \
            catalog.getSQLCatalogSecurityUidGroupsColumnsDict()
        default_security_uid_column = catalog_security_uid_groups_columns_dict['']
        for local_roles_group_id, security_uid in security_uid_dict.items():
          catalog_column = catalog_security_uid_groups_columns_dict.get(
                local_roles_group_id, default_security_uid_column)
          setattr(w, catalog_column, security_uid)

        # XXX we should build vars begore building the wrapper

        predicate_property_dict = catalog.getPredicatePropertyDict(object)
        if predicate_property_dict is not None:
          w.predicate_property_dict = predicate_property_dict
        else:
          w.predicate_property_dict = {}

        (subject_set_uid, optimised_subject_list) = catalog.getSubjectSetUid(document_w)
        w.optimised_subject_list = optimised_subject_list
        w.subject_set_uid = subject_set_uid

        return ImplicitAcquisitionWrapper(w, aq_parent(document_object))

    security.declarePrivate('reindexObject')
    def reindexObject(self, object, idxs=None, sql_catalog_id=None,**kw):
        '''Update catalog after object data has changed.
        The optional idxs argument is a list of specific indexes
        to update (all of them by default).
        '''
        if idxs is None: idxs = []
        url = self.__url(object)
        self.catalog_object(object, url, idxs=idxs, sql_catalog_id=sql_catalog_id,**kw)


    def catalogObjectList(self, object_list, *args, **kw):
        """Catalog a list of objects"""
        m = object_list[0]
        if isinstance(m, GroupedMessage):
          tmp_object_list = [x.object for x in object_list]
          super(CatalogTool, self).catalogObjectList(tmp_object_list, **m.kw)
          if tmp_object_list:
            exc_info = sys.exc_info()
          for x in object_list:
            if x.object in tmp_object_list:
              x.raised(exc_info)
            else:
              x.result = None
        else:
          super(CatalogTool, self).catalogObjectList(object_list, *args, **kw)

    security.declarePrivate('uncatalogObjectList')
    def uncatalogObjectList(self, message_list):
      """Uncatalog a list of objects"""
      # TODO: this is currently only a placeholder for further optimization
      try:
        for m in message_list:
          m.result = self.unindexObject(*m.args, **m.kw)
      except Exception:
        m.raised()

    security.declarePrivate('unindexObject')
    def unindexObject(self, object=None, path=None, uid=None,sql_catalog_id=None):
        """
          Remove from catalog.
        """
        if path is None and uid is None:
          if object is None:
            raise TypeError, 'One of uid, path and object parameters must not be None'
          path = self.__url(object)
        if uid is None:
          raise TypeError, "unindexObject supports only uid now"
        self.uncatalog_object(path=path, uid=uid, sql_catalog_id=sql_catalog_id)

    security.declarePrivate('beforeUnindexObject')
    def beforeUnindexObject(self, object, path=None, uid=None,sql_catalog_id=None):
        """
          Remove from catalog.
        """
        if path is None and uid is None:
          path = self.__url(object)
        self.beforeUncatalogObject(path=path,uid=uid, sql_catalog_id=sql_catalog_id)

    security.declarePrivate('getUrl')
    def getUrl(self, object):
      return self.__url(object)

    security.declarePrivate('moveObject')
    def moveObject(self, object, idxs=None):
        """
          Reindex in catalog, taking into account
          peculiarities of ERP5Catalog / ZSQLCatalog

          Useless ??? XXX
        """
        if idxs is None: idxs = []
        url = self.__url(object)
        self.catalog_object(object, url, idxs=idxs, is_object_moved=1)

    security.declarePublic('getPredicatePropertyDict')
    def getPredicatePropertyDict(self, object):
      """
      Construct a dictionnary with a list of properties
      to catalog into the table predicate
      """
      if not object.providesIPredicate():
        return None
      object = object.asPredicate()
      if object is None:
        return None
      property_dict = {}
      identity_criterion = getattr(object,'_identity_criterion',None)
      range_criterion = getattr(object,'_range_criterion',None)
      if identity_criterion is not None:
        for property, value in identity_criterion.items():
          if value is not None:
            property_dict[property] = value
      if range_criterion is not None:
        for property, (min, max) in range_criterion.items():
          if min is not None:
            property_dict['%s_range_min' % property] = min
          if max is not None:
            property_dict['%s_range_max' % property] = max
      property_dict['membership_criterion_category_list'] = object.getMembershipCriterionCategoryList()
      return property_dict

    security.declarePrivate('getDynamicRelatedKeyList')
    def getDynamicRelatedKeyList(self, key_list, sql_catalog_id=None):
      """
      Return the list of dynamic related keys.
      This method will try to automatically generate new related key
      by looking at the category tree.

      For exemple it will generate:
      destination_title | category,catalog/title/z_related_destination
      default_destination_title | category,catalog/title/z_related_destination
      strict_destination_title | category,catalog/title/z_related_strict_destination

      strict_ related keys only returns documents which are strictly member of
      the category.
      """
      related_key_list = []
      base_cat_id_list = self.portal_categories.getBaseCategoryDict()
      default_string = 'default_'
      strict_string = 'strict_'
      related_string = 'related_'
      column_map = self.getSQLCatalog(sql_catalog_id).getColumnMap()
      for key in key_list:
        prefix = ''
        strict = 0
        if key.startswith(default_string):
          key = key[len(default_string):]
          prefix = default_string
        if key.startswith(strict_string):
          strict = 1
          key = key[len(strict_string):]
          prefix = prefix + strict_string
        splitted_key = key.split('_')
        # look from the end of the key from the beginning if we
        # can find 'title', or 'portal_type'...
        for i in xrange(len(splitted_key) - 1, 0, -1):
          expected_base_cat_id = '_'.join(splitted_key[0:i])
          if expected_base_cat_id != 'parent' and \
             expected_base_cat_id in base_cat_id_list:
            # We have found a base_category
            end_key = '_'.join(splitted_key[i:])
            related = end_key.startswith(related_string)
            if related:
              end_key = end_key[len(related_string):]
            # XXX: joining with non-catalog tables is not trivial and requires
            # ZSQLCatalog's ColumnMapper cooperation, so only allow catalog
            # columns.
            if 'catalog' in column_map.get(end_key, ()):
              is_uid = end_key == 'uid'
              if is_uid:
                end_key = 'uid' if related else 'category_uid'
              related_key_list.append(
                prefix + key + ' | category' +
                ('' if is_uid else ',catalog') +
                '/' +
                end_key +
                '/z_related_' +
                ('strict_' if strict else '') +
                expected_base_cat_id +
                ('_related' if related else '')
              )

      return related_key_list

    def _aq_dynamic(self, name):
      """
      Automatic related key generation.
      Will generate z_related_[base_category_id] if possible
      """
      result = None
      if name.startswith(DYNAMIC_METHOD_NAME) and \
          not name.endswith(ZOPE_SECURITY_SUFFIX):
        kw = {}
        if name.endswith(RELATED_DYNAMIC_METHOD_NAME):
          end_offset = RELATED_DYNAMIC_METHOD_NAME_LEN
          kw['related'] = 1
        else:
          end_offset = None
        if name.startswith(STRICT_DYNAMIC_METHOD_NAME):
          start_offset = STRICT_DYNAMIC_METHOD_NAME_LEN
          kw['strict_membership'] = 1
        else:
          start_offset = DYNAMIC_METHOD_NAME_LEN
        method = RelatedBaseCategory(name[start_offset:end_offset], **kw)
        setattr(self.__class__, name, method)
        # This getattr has 2 purposes:
        # - wrap in acquisition context
        #   This alone should be explicitly done rather than through getattr.
        # - wrap (if needed) class attribute on the instance
        #   (for the sake of not relying on current implementation details
        #   "too much")
        result = getattr(self, name)
      return result

    def _searchAndActivate(self, method_id, method_args=(), method_kw={},
                           activate_kw={}, min_uid=None, **kw):
      """Search the catalog and run a script by activity on all found objects

      This method is configurable (via 'packet_size' & 'activity_count'
      parameters) so that it can work efficiently with databases of any size.
      'select_method_id', if provided, will be called with partial catalog
      results and returned value will be provided to the callable identified by
      'method_id' (which will no longer be invoked in the context of a given
      document returned by catalog) as first positional argument.

      'activate_kw' may specify an active process to collect results.
      """
      catalog_kw = dict(kw)
      packet_size = catalog_kw.pop('packet_size', 30)
      limit = packet_size * catalog_kw.pop('activity_count', 100)
      select_method_id = catalog_kw.pop('select_method_id', None)
      if min_uid:
        catalog_kw['min_uid'] = SimpleQuery(uid=min_uid,
                                            comparison_operator='>')
      if catalog_kw.pop('restricted', False):
        search = self
      else:
        search = self.unrestrictedSearchResults
      r = search(sort_on=(('uid','ascending'),), limit=limit, **catalog_kw)
      result_count = len(r)
      if result_count:
        if result_count == limit:
          next_kw = dict(activate_kw, priority=1+activate_kw.get('priority', 1))
          self.activate(activity='SQLQueue', **next_kw) \
              ._searchAndActivate(method_id,method_args, method_kw,
                                  activate_kw, r[-1].getUid(), **kw)
        portal_activities = self.getPortalObject().portal_activities
        active_portal_activities = portal_activities.activate(
          activity='SQLQueue', **activate_kw)
        if select_method_id is None:
          r = [x.getPath() for x in r]
          r.sort()
          activate = active_portal_activities.callMethodOnObjectList
          method_args = (method_id, ) + method_args
        else:
          r = getattr(portal_activities, select_method_id)(r)
          activate = getattr(active_portal_activities, method_id)
        for i in xrange(0, result_count, packet_size):
          activate(r[i:i+packet_size], *method_args, **method_kw)

    security.declarePublic('searchAndActivate')
    def searchAndActivate(self, *args, **kw):
      """Restricted version of _searchAndActivate"""
      return self._searchAndActivate(restricted=True, *args, **kw)

    security.declareProtected(Permissions.ManagePortal, 'upgradeSchema')
    def upgradeSchema(self, sql_catalog_id=None, src__=0):
      """Upgrade all catalog tables, with ALTER or CREATE queries"""
      catalog = self.getSQLCatalog(sql_catalog_id)
      connection_id = catalog.z_create_catalog.connection_id
      src = []
      db = self.getPortalObject()[connection_id]()
      with db.lock():
        for clear_method in catalog.sql_clear_catalog:
          r = catalog[clear_method]._upgradeSchema(
            connection_id, create_if_not_exists=1, src__=1)
          if r:
            src.append(r)
        if not src__:
          for r in src:
            db.query(r)
      return src


InitializeClass(CatalogTool)