CatalogTool.py 23 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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from MethodObject import Method
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import os, time, urllib
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from zLOG import LOG

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  # Security uses ERP5Security by default
try:
  from Products.ERP5Security import ERP5UserManager
  withnuxgroups = 0
except ImportError:
  ERP5UserManager = None
  # If NuxUserGroups is installed and ERP5Security is not installed, we use NuxUserGroups groups
  try:
    from Products.NuxUserGroups.CatalogToolWithGroups import mergedLocalRoles
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    from Products.NuxUserGroups.CatalogToolWithGroups import _getAllowedRolesAndUsers
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    withnuxgroups = 1
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  except ImportError:
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    withnuxgroups = 0
    
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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):
        """
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        Return a list of roles and users with Access contents
        information permission.
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        Used by PortalCatalog to filter out items you're not allowed to see.
        """
        ob = self.__ob
        allowed = {}
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        for r in rolesForPermissionOn('Access contents information', ob):
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          allowed[r] = 1
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        if withnuxgroups:
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          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():
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          for role in roles:
            if allowed.has_key(role):
              if withnuxgroups:
                allowed[user] = 1
              else:
                allowed['user:' + user] = 1
            # Added for ERP5 project by JP Smets
            if role != 'Owner':
              if withnuxgroups:
                allowed[user + ':' + role] = 1
              else:
                allowed['user:' + user + ':' + role] = 1
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        if allowed.has_key('Owner'):
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          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 RelatedBaseCategory(Method):

    def __init__(self, id):
      self._id = id

    def __call__(self, instance, table_0, table_1, query_table='catalog',**kw):
      base_category_uid = instance.portal_categories._getOb(self._id).getUid()
      expression_list = []
      append = expression_list.append
      append('%s.uid = %s.category_uid' % (table_1,table_0))
      append('AND %s.base_category_uid = %s' % (table_0,base_category_uid))
      append('AND %s.uid = %s.uid' % (table_0,query_table))
      return ' '.join(expression_list)

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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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    security.declareProtected( 'Import/Export objects', 'exportSQLMethods' )
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    def exportSQLMethods(self, sql_catalog_id=None, config_id='erp5'):
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      """
        Export SQL methods for a given configuration.
      """
      # For compatibility.
      if config_id.lower() == 'erp5':
        config_id = 'erp5_mysql'
      elif config_id.lower() == 'cps3':
        config_id = 'cps3_mysql'
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      catalog = self.getSQLCatalog(sql_catalog_id)
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      product_path = package_home(globals())
      common_sql_dir = os.path.join(product_path, 'sql', 'common_mysql')
      config_sql_dir = os.path.join(product_path, 'sql', config_id)
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      common_sql_list = ('z0_drop_record', 'z_read_recorded_object_list', 'z_catalog_paths',
                         'z_record_catalog_object', 'z_clear_reserved', 'z_record_uncatalog_object',
                         'z_create_record', 'z_related_security', 'z_delete_recorded_object_list',
                         'z_reserve_uid', 'z_getitem_by_path', 'z_show_columns', 'z_getitem_by_path',
                         'z_show_tables', 'z_getitem_by_uid', 'z_unique_values', 'z_produce_reserved_uid_list',)
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      msg = ''
      for id in catalog.objectIds(spec=('Z SQL Method',)):
        if id in common_sql_list:
          d = common_sql_dir
        else:
          d = config_sql_dir
        sql = catalog._getOb(id)
        # First convert the skin to text
        text = sql.manage_FTPget()
        name = os.path.join(d, '%s.zsql' % (id,))
        msg += 'Writing %s\n' % (name,)
        f = open(name, 'w')
        try:
          f.write(text)
        finally:
          f.close()
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      properties = self.manage_catalogExportProperties(sql_catalog_id=sql_catalog_id)
      name = os.path.join(config_sql_dir, 'properties.xml')
      msg += 'Writing %s\n' % (name,)
      f = open(name, 'w')
      try:
        f.write(properties)
      finally:
        f.close()
        
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      return msg
        
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    def _listAllowedRolesAndUsers(self, user):
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      if ERP5UserManager is not None:
        # We use ERP5Security PAS based authentication
        result = CMFCoreCatalogTool._listAllowedRolesAndUsers(self, user)
        # deal with groups
        getGroups = getattr(user, 'getGroups', None)
        if getGroups is not None:
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            groups = list(user.getGroups())
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            groups.append('role:Anonymous')
            if 'Authenticated' in result:
                groups.append('role:Authenticated')
            for group in groups:
                result.append('user:%s' % group)
        # end groups
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        return result
      elif withnuxgroups:
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        return _getAllowedRolesAndUsers(user)
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      else:
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        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.
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        This is supposed to be used with Z SQL Methods to check permissions
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        when you list up documents. It is also able to take into account
        a parameter named local_roles so that list documents only include
        those documents for which the user (or the group) was
        associated one of the given local roles.
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      """
      user = _getAuthenticatedUser(self)
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      allowedRolesAndUsers = self._listAllowedRolesAndUsers(user)
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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'):
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        # XXX user is not enough - we should also include groups of the user
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        # 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']
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          new_allowedRolesAndUsers = []
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          # 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)
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          for user_or_group in allowedRolesAndUsers:
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            for role in local_roles:
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              new_allowedRolesAndUsers.append('%s:%s' % (user_or_group, role))
          allowedRolesAndUsers = new_allowedRolesAndUsers
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      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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        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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        if not kw.has_key('limit'):
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          kw['limit'] = 1000
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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
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        # (we should not count lines more than once with statistic expressions)
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        if kw.has_key('select_expression'): del kw[ 'allowedRolesAndUsers' ]
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        # XXX This needs to be set again
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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
      """
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      if not getattr(object,'isPredicate',None):
        return None
      object = object.asPredicate()
      if object is None:
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        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:
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            property_dict['%s_range_min' % property] = min
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          if max is not None:
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            property_dict['%s_range_max' % property] = max
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      property_dict['membership_criterion_category_list'] = object.getMembershipCriterionCategoryList()
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      return property_dict

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    security.declarePrivate('getDynamicRelatedKeyList')
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    def getDynamicRelatedKeyList(self, sql_catalog_id=None, **kw):
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      """
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      Return the list of dynamic related keys.
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      This method will try to automatically generate new related key
      by looking at the category tree.
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      For exemple it will generate:
      destination_title | category,catalog/title/z_related_destination
      default_destination_title | category,catalog/title/z_related_destination
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      """
      related_key_list = []
      base_cat_id_list = self.portal_categories.getBaseCategoryList()
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      default_string = 'default_'
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      for key in kw.keys():
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        prefix = ''
        if key.startswith(default_string):
          key = key[len(default_string):]
          prefix = default_string
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        splitted_key = key.split('_')
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        # look from the end of the key from the beginning if we
        # can find 'title', or 'portal_type'...
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        for i in range(1,len(splitted_key))[::-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:])
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            # accept only some catalog columns
            if end_key in ('title','uid','description','id','portal_type'):
              related_key_list.append('%s%s | category,catalog/%s/z_related_%s' %
                                        (prefix,key,end_key,expected_base_cat_id))
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      return related_key_list

    def _aq_dynamic(self, name):
      """
      Automatic related key generation.
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      Will generate z_related_[base_category_id] if possible
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      """
      aq_base_name = getattr(aq_base(self), name, None)
      if aq_base_name == None:
        DYNAMIC_METHOD_NAME = 'z_related_'
        method_name_length = len(DYNAMIC_METHOD_NAME)
        zope_security = '__roles__'
        if (name.startswith(DYNAMIC_METHOD_NAME) and \
          (not name.endswith(zope_security))):
          base_category_id = name[len(DYNAMIC_METHOD_NAME):]
          method = RelatedBaseCategory(base_category_id)
          setattr(self.__class__, name, 
                  method)
          klass = aq_base(self).__class__
          if hasattr(klass, 'security'):
            from Products.ERP5Type import Permissions as ERP5Permissions
            klass.security.declareProtected(ERP5Permissions.View, name)
          else:
            # XXX security declaration always failed....
            LOG('WARNING ERP5Form SelectionTool, security not defined on',
                0, klass.__name__)
          return getattr(self, name)
        else:
          return aq_base_name
      return aq_base_name
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InitializeClass(CatalogTool)