CatalogTool.py 17.1 KB
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##############################################################################
#
# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
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#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
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#
# 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.
#
##############################################################################

from Products.CMFCore.CatalogTool import CatalogTool as CMFCoreCatalogTool
from Products.ZSQLCatalog.ZSQLCatalog import ZCatalog
from Products.CMFCore import CMFCorePermissions
from AccessControl import ClassSecurityInfo, getSecurityManager
from Products.CMFCore.CatalogTool import IndexableObjectWrapper as CMFCoreIndexableObjectWrapper
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from Products.CMFCore.utils import UniqueObject, _checkPermission, _getAuthenticatedUser, getToolByName
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from Products.CMFCore.utils import _mergedLocalRoles
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from Globals import InitializeClass, DTMLFile, package_home
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from Acquisition import aq_base, aq_inner, aq_parent
from DateTime.DateTime import DateTime
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from Products.CMFActivity.ActiveObject import ActiveObject
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from AccessControl.PermissionRole import rolesForPermissionOn

from Products.PageTemplates.Expressions import SecureModuleImporter
from Products.CMFCore.Expression import Expression
from Products.PageTemplates.Expressions import getEngine

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import os, time, urllib

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from zLOG import LOG

class IndexableObjectWrapper(CMFCoreIndexableObjectWrapper):

    def __setattr__(self, name, value):
      # We need to update the uid during the cataloging process
      if name == 'uid':
        setattr(self.__ob, name, value)
      else:
        self.__dict__[name] = value

    def allowedRolesAndUsers(self):
        """
        Return a list of roles and users with View permission.
        Used by PortalCatalog to filter out items you're not allowed to see.
        """
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        # Try to import CPS (import here to make sure no circular)
        try:
          from Products.NuxUserGroups.CatalogToolWithGroups import mergedLocalRoles
          withgroups = 1
        except ImportError:
          withgroups = 0

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        ob = self.__ob
        allowed = {}
        for r in rolesForPermissionOn('View', ob):
            allowed[r] = 1
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        if withgroups:
          localroles = mergedLocalRoles(ob, withgroups=1)
        else:
          # CMF
          localroles = _mergedLocalRoles(ob)
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        # 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'
        new_dict = {}
        for key in localroles.keys():
          new_list = []
          remove_list = []
          for role in localroles[key]:
            if role.startswith('-'):
              if not role[1:] in new_list and not role[1:] in remove_list:
                remove_list.append(role[1:])
            elif not role in remove_list:
              new_list.append(role)
          if len(new_list)>0:
            new_dict[key] = new_list
        localroles = new_dict
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        for user, roles in localroles.items():
            for role in roles:
                if allowed.has_key(role):
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                    if withgroups:
                      allowed[user] = 1
                    else:
                      allowed['user:' + user] = 1
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                # Added for ERP5 project by JP Smets
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                if role != 'Owner':
                  if withgroups:
                    allowed[user + ':' + role] = 1
                  else:
                    allowed['user:' + user + ':' + role] = 1
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        if allowed.has_key('Owner'):
            del allowed['Owner']
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        #LOG("allowedRolesAndUsers",0,str(allowed.keys()))
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        return list(allowed.keys())

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

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


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

    # Explicite Inheritance
    __url = CMFCoreCatalogTool.__url
    manage_catalogFind = CMFCoreCatalogTool.manage_catalogFind

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

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    security.declareProtected( 'Import/Export objects', 'addDefaultSQLMethods' )
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    def addDefaultSQLMethods(self, config_id='erp5'):
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      """
        Add default SQL methods for a given configuration.
      """
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      # For compatibility.
      if config_id.lower() == 'erp5':
        config_id = 'erp5_mysql'
      elif config_id.lower() == 'cps3':
        config_id = 'cps3_mysql'

      addSQLCatalog = self.manage_addProduct['ZSQLCatalog'].manage_addSQLCatalog
      if config_id not in self.objectIds():
        addSQLCatalog(config_id, '')

      catalog = self.getSQLCatalog(config_id)
      addSQLMethod = catalog.manage_addProduct['ZSQLMethods'].manage_addZSQLMethod
      product_path = package_home(globals())
      zsql_dirs = []

      # Common methods
      if config_id.lower() == 'erp5_mysql':
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        zsql_dirs.append(os.path.join(product_path, 'sql', 'common_mysql'))
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        zsql_dirs.append(os.path.join(product_path, 'sql', 'erp5_mysql'))
      elif config_id.lower() == 'cps3_mysql':
        zsql_dirs.append(os.path.join(product_path, 'sql', 'common_mysql'))
        zsql_dirs.append(os.path.join(product_path, 'sql', 'cps3_mysql'))
      # XXX TODO : add other cases

      # Iterate over the sql directory. Add all sql methods in that directory.
      for directory in zsql_dirs:
        for entry in os.listdir(directory):
          if entry.endswith('.zsql'):
            id = entry[:-5]
            # Create an empty SQL method first.
            addSQLMethod(id = id, title = '', connection_id = '', arguments = '', template = '')
            #LOG('addDefaultSQLMethods', 0, 'catalog = %r' % (catalog.objectIds(),))
            sql_method = getattr(catalog, id)
            # Set parameters of the SQL method from the contents of a .zsql file.
            sql_method.fromFile(os.path.join(directory, entry))
          elif entry == 'properties.xml':
            # This sets up the attributes. The file should be generated by manage_exportProperties.
            catalog.manage_importProperties(os.path.join(directory, entry))

      # Make this the default.
      self.default_sql_catalog_id = config_id
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    def _listAllowedRolesAndUsers(self, user):
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      try:
        from Products.NuxUserGroups.CatalogToolWithGroups import _getAllowedRolesAndUsers
        return _getAllowedRolesAndUsers(user)
      except ImportError:
        return CMFCoreCatalogTool._listAllowedRolesAndUsers(self, user)
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    # 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


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    security.declarePublic( 'getAllowedRolesAndUsers' )
    def getAllowedRolesAndUsers(self, **kw):
      """
        Return allowed roles and users.
        This is supposed to be used with Z SQL Methods to check permissions
        when you list up documents.
      """
      user = _getAuthenticatedUser(self)
      allowedRolesAndUsers = self._listAllowedRolesAndUsers( user )

      # Patch for ERP5 by JP Smets in order
      # to implement worklists and search of local roles
      if kw.has_key('local_roles'):
        # Only consider local_roles if it is not empty
        if kw['local_roles'] != '' and  kw['local_roles'] != [] and  kw['local_roles'] is not None:
          local_roles = kw['local_roles']
          # Turn it into a list if necessary according to ';' separator
          if type(local_roles) == type('a'):
            local_roles = local_roles.split(';')
          # Local roles now has precedence (since it comes from a WorkList)
          allowedRolesAndUsers = []
          for role in local_roles:
            allowedRolesAndUsers.append('user:%s:%s' % (user, role))

      return allowedRolesAndUsers

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    # searchResults has inherited security assertions.
    def searchResults(self, REQUEST=None, **kw):
        """
            Calls ZCatalog.searchResults with extra arguments that
            limit the results to what the user is allowed to see.
        """
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        kw[ 'allowedRolesAndUsers' ] = self.getAllowedRolesAndUsers(**kw) # XXX allowedRolesAndUsers naming is wrong

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        # Patch for ERP5 by JP Smets in order
        # to implement worklists and search of local roles
        if kw.has_key('local_roles'):
          # Only consider local_roles if it is not empty
          if kw['local_roles'] != '' and  kw['local_roles'] != [] and  kw['local_roles'] is not None:
            local_roles = kw['local_roles']
            # Turn it into a list if necessary according to ';' separator
            if type(local_roles) == type('a'):
              local_roles = local_roles.split(';')
            # Local roles now has precedence (since it comes from a WorkList)
            kw[ 'allowedRolesAndUsers' ] = []
            for role in local_roles:
                 kw[ 'allowedRolesAndUsers' ].append('user:%s:%s' % (user, role))

        if not _checkPermission(
            CMFCorePermissions.AccessInactivePortalContent, self ):
            base = aq_base( self )
            now = DateTime()
            kw[ 'effective' ] = { 'query' : now, 'range' : 'max' }
            kw[ 'expires'   ] = { 'query' : now, 'range' : 'min' }
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        #LOG("search allowedRolesAndUsers",0,str(kw[ 'allowedRolesAndUsers' ]))
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        return apply(ZCatalog.searchResults, (self, REQUEST), kw)

    __call__ = searchResults

    def countResults(self, REQUEST=None, **kw):
        """
            Calls ZCatalog.countResults with extra arguments that
            limit the results to what the user is allowed to see.
        """
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        kw[ 'allowedRolesAndUsers' ] = self.getAllowedRolesAndUsers(**kw) # XXX allowedRolesAndUsers naming is wrong
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        # Forget about permissions in statistics
        # (we should not count lines more than once
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        if kw.has_key('select_expression'): del kw[ 'allowedRolesAndUsers' ]
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        #if not _checkPermission(
        #    CMFCorePermissions.AccessInactivePortalContent, self ):
        #    base = aq_base( self )
        #    now = DateTime()
        #    #kw[ 'effective' ] = { 'query' : now, 'range' : 'max' }
        #    #kw[ 'expires'   ] = { 'query' : now, 'range' : 'min' }
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        return apply(ZCatalog.countResults, (self, REQUEST), kw)

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    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)

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        wf = getToolByName(self, 'portal_workflow')
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        if wf is not None:
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          vars = wf.getCatalogVariablesFor(object)
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        else:
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          vars = {}
        #LOG('catalog_object vars', 0, str(vars))
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        w = IndexableObjectWrapper(vars, object)
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        object_path = object.getPhysicalPath()
        portal_path = object.portal_url.getPortalObject().getPhysicalPath()
        if len(object_path) > len(portal_path) + 2 and getattr(object, 'isRADContent', 0):
          # This only applied to ERP5 Contents (not CPS)
          # We are now in the case of a subobject of a root document
          # We want to return single security information
          document_object = aq_inner(object)
          for i in range(0, len(object_path) - len(portal_path) - 2):
            document_object = document_object.aq_parent
          document_w = IndexableObjectWrapper({}, document_object)
        else:
          document_w = w

        (security_uid, optimised_roles_and_users) = catalog.getSecurityUid(document_w)
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        #LOG('catalog_object optimised_roles_and_users', 0, str(optimised_roles_and_users))
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        # XXX we should build vars begore building the wrapper
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        if optimised_roles_and_users is not None:
          vars['optimised_roles_and_users'] = optimised_roles_and_users
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        else:
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          vars['optimised_roles_and_users'] = None
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        predicate_property_dict = catalog.getPredicatePropertyDict(object)
        if predicate_property_dict is not None:
          vars['predicate_property_dict'] = predicate_property_dict
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        vars['security_uid'] = security_uid
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        return w
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    security.declarePrivate('reindexObject')
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    def reindexObject(self, object, idxs=None, sql_catalog_id=None,**kw):
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        '''Update catalog after object data has changed.
        The optional idxs argument is a list of specific indexes
        to update (all of them by default).
        '''
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        if idxs is None: idxs = []
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        url = self.__url(object)
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        self.catalog_object(object, url, idxs=idxs, sql_catalog_id=sql_catalog_id,**kw)
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    security.declarePrivate('unindexObject')
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    def unindexObject(self, object, path=None, sql_catalog_id=None):
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        """
          Remove from catalog.
        """
        if path is None:
          url = self.__url(object)
        else:
          url = path
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        self.uncatalog_object(url, sql_catalog_id=sql_catalog_id)
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    security.declarePrivate('moveObject')
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    def moveObject(self, object, idxs=None):
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        """
          Reindex in catalog, taking into account
          peculiarities of ERP5Catalog / ZSQLCatalog

          Useless ??? XXX
        """
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        if idxs is None: idxs = []
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        url = self.__url(object)
        self.catalog_object(object, url, idxs=idxs, is_object_moved=1)
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    security.declarePublic('getPredicatePropertyDict')
    def getPredicatePropertyDict(self, object):
      """
      Construct a dictionnary with a list of properties
      to catalog into the table predicate
      """
      if getattr(object,'isPredicate',None) 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_min' % property] = min
          if max is not None:
            property_dict['%s_max' % property] = max
      return property_dict





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InitializeClass(CatalogTool)