Ejemplo n.º 1
0
def roles_of_permission(context, permission):
    """Return all roles which have the given permission
    on the current context."""

    role_manager = IRoleManager(context)
    for p in role_manager.ac_inherited_permissions(1):
        name, value = p[:2]
        if name == permission:
            p = Permission(name, value, role_manager)
            roles = p.getRoles()
            return roles
Ejemplo n.º 2
0
def roles_of_permission(context, permission):
    """Return all roles which have the given permission
    on the current context."""

    role_manager = IRoleManager(context)
    for p in role_manager.ac_inherited_permissions(1):
        name, value = p[:2]
        if name == permission:
            p = Permission(name, value, role_manager)
            roles = p.getRoles()
            return roles
    def __iter__(self):
        for item in self.previous:

            if '_username' in item.keys():
                member = self.memtool.getMemberById(item['_username'])
                if not member:
                    yield item; continue
                member.setMemberProperties(item['_properties'])

                # add member to group
                if item.get('_user_groups', False):
                    for groupid in item['_user_groups']:
                        group = self.gtool.getGroupById(groupid)
                        if group:
                            group.addMember(item['_username'])

                # setting global roles
                if item.get('_root_roles', False):
                    self.portal.acl_users.userFolderEditUser(
                                item['_username'],
                                None,
                                item['_root_roles'])

                # setting local roles
                if item.get('_local_roles', False):
                    try:
                        obj = self.portal.unrestrictedTraverse(item['_plone_site'])
                    except (AttributeError, KeyError):
                        pass
                    else:
                        if IRoleManager.providedBy(obj):
                            obj.manage_addLocalRoles(item['_username'], item['_local_roles'])
                            obj.reindexObjectSecurity()

            yield item
Ejemplo n.º 4
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    def __iter__(self):
        for item in self.previous:
            pathkey = self.pathkey(*list(item.keys()))[0]
            roleskey = self.roleskey(*list(item.keys()))[0]

            if not pathkey or not roleskey or \
               roleskey not in item:    # not enough info
                yield item
                continue

            path = safe_unicode(item[pathkey].lstrip('/')).encode('ascii')
            obj = traverse(self.context, path, None)

            # path doesn't exist
            if obj is None:
                yield item
                continue

            if IRoleManager.providedBy(obj):
                for principal, roles in list(item[roleskey].items()):
                    if roles:
                        obj.manage_addLocalRoles(principal, roles)
                        obj.reindexObjectSecurity()

            yield item
    def __iter__(self):
        for item in self.previous:
            pathkey = self.pathkey(*item.keys())[0]
            roleskey = self.roleskey(*item.keys())[0]

            if not pathkey or not roleskey or \
               roleskey not in item:    # not enough info
                yield item
                continue

            path = safe_unicode(item[pathkey].lstrip('/')).encode('ascii')
            obj = traverse(self.context, path, None)

            # path doesn't exist
            if obj is None:
                yield item
                continue

            if IRoleManager.providedBy(obj):
                for principal, roles in item[roleskey].items():
                    if roles:
                        obj.manage_addLocalRoles(principal, roles)
                        obj.reindexObjectSecurity()

            yield item
Ejemplo n.º 6
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def setReviewer(issue, event):
    log( "=== Default Reviewer Role Attribution in Issue ===")
    acl_users = getToolByName(issue, 'acl_users')
    mail_host = getToolByName(issue, 'MailHost')
    portal_url = getToolByName(issue, 'portal_url')
    
    parent = issue.aq_inner.aq_parent
    log( parent.__name__ + "parent local roles : " +str(parent.get_local_roles())
            + "\naq_parent'parent local roles : " + str(parent.aq_parent.get_local_roles()))
    
    users_with_the_role = []
    if parent.Type() == "Tracker":
        log( "Testing parent's reviewers")
        users_roles = parent.get_local_roles()
        log("users roles : " + str( users_roles))
        users_with_the_role = [x[0] for x in users_roles if 'Reviewer' in x[1]]
        for member in users_with_the_role:
            log("member : " + member)

    #Add local roles to a group
    if IRoleManager.providedBy(issue):
        for member in users_with_the_role:
            log( "adding roles (Reviewer) to " + member )
            issue.manage_addLocalRoles(member, ['Reviewer'])

    return
Ejemplo n.º 7
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    def __iter__(self):
        for item in self.previous:
            pathkey = self.pathkey(*item.keys())[0]
            permskey = self.permskey(*item.keys())[0]

            if not pathkey or not permskey or \
               permskey not in item:    # not enough info
                yield item
                continue

            obj = self.context.unrestrictedTraverse(item[pathkey].lstrip('/'),
                                                    None)
            if obj is None:  # path doesn't exist
                yield item
                continue

            if IRoleManager.providedBy(obj):
                for perm, perm_dict in item[permskey].items():
                    try:
                        obj.manage_permission(perm,
                                              roles=perm_dict['roles'],
                                              acquire=perm_dict['acquire'])
                    except ValueError:
                        # raise Exception('Error setting the perm "%s"' % perm)
                        logger.error('Error setting the perm "%s" on %s' %
                                     (perm, item[pathkey]))

            yield item
Ejemplo n.º 8
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    def __iter__(self):
        for item in self.previous:
            pathkey = self.pathkey(*item.keys())[0]
            permskey = self.permskey(*item.keys())[0]

            if not pathkey or not permskey or \
               permskey not in item:    # not enough info
                yield item; continue

            obj = self.context.unrestrictedTraverse(
                    item[pathkey].lstrip('/'), None)
            if obj is None:             # path doesn't exist
                yield item; continue

            if IRoleManager.providedBy(obj):
                for perm, perm_dict in item[permskey].items():
                    try:
                        obj.manage_permission(perm,
                            roles=perm_dict['roles'],
                            acquire=perm_dict['acquire'])
                    except ValueError:
                        #raise Exception('Error setting the perm "%s"' % perm)
                        logger.error('Error setting the perm "%s" on %s' % (perm, item[pathkey]))


            yield item
Ejemplo n.º 9
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def createGroup(projet, event):
    print "=== Group creation ==="
    acl_users = getToolByName(projet, 'acl_users')
    mail_host = getToolByName(projet, 'MailHost')
    portal_url = getToolByName(projet, 'portal_url')
    
    portal = portal_url.getPortalObject()
    sender = portal.getProperty('email_from_address')

    gr = portal.portal_groups
    
    group_id = projet.id
    if not group_id in gr.getGroupIds():
        gr.addGroup(group_id)
    
    for member in projet.contributor:
        gtool = getToolByName(portal, "portal_groups", None)
        user_groups = gtool.getGroupsByUserId(member)
        print "user groups for member %s : "%member, user_groups
        if group_id not in user_groups:
            print "adding group ", group_id
            gr.addPrincipalToGroup(member, group_id)
            
     
    #Add local roles to a group
    if IRoleManager.providedBy(projet):
        print "adding roles (contributor and Editor) to ", group_id 
        projet.manage_addLocalRoles(group_id, ['Contributor','Editor'])
    

    return
Ejemplo n.º 10
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    def __iter__(self):
        for item in self.previous:
            pathkey = self.pathkey(*list(item.keys()))[0]
            roleskey = self.roleskey(*list(item.keys()))[0]

            if (not pathkey or not roleskey
                    or roleskey not in item):  # not enough info
                yield item
                continue
            obj = self.context.unrestrictedTraverse(
                str(item[pathkey]).lstrip("/"), None)
            if obj is None:  # path doesn't exist
                yield item
                continue

            if IRoleManager.providedBy(obj):
                for principal, roles in item[roleskey].items():
                    if roles:
                        obj.manage_addLocalRoles(principal, roles)
                        try:
                            obj.reindexObjectSecurity()
                        except Exception:
                            logger.warning(
                                "Failed to reindexObjectSecurity {}".format(
                                    item["_path"]))
            yield item
    def __iter__(self):
        for item in self.previous:
            pathkey = self.pathkey(*item.keys())[0]
            roleskey = self.roleskey(*item.keys())[0]

            if not pathkey or not roleskey or \
               roleskey not in item:    # not enough info
                yield item; continue

            obj = self.context.unrestrictedTraverse(item[pathkey].lstrip('/'), None)
            if obj is None:             # path doesn't exist
                yield item; continue

            if IRoleManager.providedBy(obj):
                
                if self.options.get('erasebefore'):
                    obj.__ac_local_roles__ = {}
                for principal, roles in item[roleskey].items():
                    if roles:
                        if principal.startswith(u'group_'):
                            principal = idnormalizer.normalize(principal)
                        obj.manage_addLocalRoles(principal, roles)
                obj.reindexObjectSecurity()

            yield item
Ejemplo n.º 12
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    def __iter__(self):
        for item in self.previous:
            pathkey = self.pathkey(*list(item.keys()))[0]
            permskey = self.permskey(*list(item.keys()))[0]

            if not pathkey or not permskey or \
               permskey not in item:    # not enough info
                yield item
                continue

            path = safe_unicode(item[pathkey].lstrip('/')).encode('ascii')
            obj = traverse(self.context, path, None)

            if obj is None:
                yield item
                continue

            if IRoleManager.providedBy(obj):
                for perm, perm_dict in list(item[permskey].items()):
                    try:
                        obj.manage_permission(perm,
                                              roles=perm_dict['roles'],
                                              acquire=perm_dict['acquire'])
                    except ValueError:
                        # raise Exception('Error setting the perm "%s"' % perm)
                        logger.error('Error setting the perm "%s" on %s' %
                                     (perm, item[pathkey]))

            yield item
Ejemplo n.º 13
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def agregaRolesAGrupo(contexto,groupid,listRoles):
    """Agrega un grupoid con los roles en listRoles a una carpeta"""
    for gs in contexto.aq_base.get_local_roles():
        if gs[0]==groupid:
            return

    if IRoleManager.providedBy(contexto):
        contexto.aq_base.manage_addLocalRoles(groupid, listRoles)
Ejemplo n.º 14
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def agregaRolesAGrupo(contexto,groupid,listRoles):
    """Agrega un grupoid con los roles en listRoles a una carpeta"""
    for gs in contexto.aq_base.get_local_roles():
        if gs[0]==groupid:
            return

    if IRoleManager.providedBy(contexto):
        contexto.aq_base.manage_addLocalRoles(groupid, listRoles)
Ejemplo n.º 15
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    def configure_development_options(self):
        for obj in self.site.listFolderContents():
            if not IRoleManager.providedBy(obj):
                continue

            if self._has_default_role_assignments(obj):
                self._assign_roles_to_development_users_group(
                    ["Contributor", "Editor", "Reader"], obj)
            elif self._has_meeting_role_assignments(obj):
                self._assign_roles_to_development_users_group(
                    ["CommitteeAdministrator"], obj)
Ejemplo n.º 16
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    def configure_development_options(self):
        for obj in self.site.listFolderContents():
            if not IRoleManager.providedBy(obj):
                continue

            if self._has_default_role_assignments(obj):
                self._assign_roles_to_development_users_group(
                    ["Contributor", "Editor", "Reader"], obj)
            elif self._has_meeting_role_assignments(obj):
                self._assign_roles_to_development_users_group(
                    ["CommitteeAdministrator"], obj)
Ejemplo n.º 17
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    def checkWorkspacePermission(self):
        helper = zope.component.queryAdapter(
            self.context, IExposureSourceAdapter)
        exposure, workspace, path = helper.source()

        if not IRoleManager.providedBy(workspace):
            # We don't know?
            return False

        for i in workspace.rolesOfPermission('View'):
            if i['name'] == 'Anonymous':
                return i['selected']
Ejemplo n.º 18
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    def reply(self):
        serializer = queryMultiAdapter((self.context, self.request),
                                       ISerializeToJson)

        if serializer is None:
            self.request.response.setStatus(501)
            return dict(error=dict(message='No serializer available.'))

        data = serializer()
        if IRoleManager.providedBy(self.context):
            data['sharing'] = {
                '@id': '{}/@sharing'.format(self.context.absolute_url()),
                'title': 'Sharing',
            }
        return data
    def __iter__(self):
        for item in self.previous:
            if not item.get('_groupname', False):
                yield item; continue

            group = self.gtool.getGroupById(item['_groupname'])
            if not group:
                yield item; continue

            if item.get('_root_group', False):
                self.gtool.editGroup(item['_groupname'],
                                    roles=item['_roles'])
            elif item.get('_roles', False):

                # setting local roles
                try:
                    obj = self.portal.unrestrictedTraverse(item['_plone_site'])
                except (AttributeError, KeyError):
                    pass
                else:
                    if IRoleManager.providedBy(obj):
                        obj.manage_addLocalRoles(item['_groupname'], item['_roles'])
                        obj.reindexObjectSecurity()

            if item.get('_group_groups', False):
                try:
                    self.gtool.editGroup(item['_groupname'],
                                    groups=item.get('_group_groups', []))
                except:
                    pass

            # With PlonePAS > 4.0b3, mutable_properties.enumerateUsers doesn't
            # return groups anymore, so it isn't possible to search a group
            # by its title stored in mutable_properties. Only the
            # title in source_groups is searched.
            # editGroup modify the title and description in source_groups
            # plugin, then it calls setGroupProperties(kw) which set the
            # properties on the mutable_properties plugin.
            if '_properties' in item:
                self.gtool.editGroup(item['_groupname'],
                                     **item['_properties'])
            yield item
Ejemplo n.º 20
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    def __iter__(self):
        for item in self.previous:
            pathkey = self.pathkey(*item.keys())[0]
            roleskey = self.roleskey(*item.keys())[0]

            if not pathkey or not roleskey or \
               roleskey not in item:    # not enough info
                yield item; continue

            obj = self.context.unrestrictedTraverse(item[pathkey].lstrip('/'), None)
            if obj is None:             # path doesn't exist
                yield item; continue

            if IRoleManager.providedBy(obj):
                for principal, roles in item[roleskey].items():
                    if roles:
                        obj.manage_addLocalRoles(principal, roles)
                        obj.reindexObjectSecurity()

            yield item
Ejemplo n.º 21
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    def __iter__(self):
        for item in self.previous:
            pathkey = self.pathkey(*item.keys())[0]
            roleskey = self.roleskey(*item.keys())[0]

            if not pathkey or not roleskey or \
               roleskey not in item:    # not enough info
                yield item; continue

            obj = self.context.unrestrictedTraverse(item[pathkey].lstrip('/'), None)
            if obj is None:             # path doesn't exist
                yield item; continue

            if IRoleManager.providedBy(obj):
                for principal, roles in item[roleskey].items():
                    if roles:
                        obj.manage_addLocalRoles(principal, roles)
                        obj.reindexObjectSecurity()

            yield item
Ejemplo n.º 22
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def createGroup(projet, event):
    acl_users = getToolByName(projet, 'acl_users')
    mail_host = getToolByName(projet, 'MailHost')
    portal_url = getToolByName(projet, 'portal_url')
    catalog = getToolByName(projet, 'portal_catalog')
    
    portal = portal_url.getPortalObject()
    gr = portal.portal_groups
    
    group_id = projet.id
    log("=== Group creation ===> " + group_id)
    
    group = gr.getGroupById(group_id)
    if not group:
        gr.addGroup(group_id)
        group = gr.getGroupById(group_id)
    
    admid = 'admin_%s'%projet.id
    adm = projet[admid]
    projectPath = projet.absolute_url()
    #members = adm.objectIds(['ageliaco.rd.auteur']) => filter ne marche pas avec Dexterity
    members = adm.objectValues() #=> filtre sur le type ne marche pas avec Dexterity
    for member in members:
        if member.portal_type == 'ageliaco.rd.auteur':
            gr.addPrincipalToGroup(member.id, group_id)
    #         gtool = getToolByName(portal, "portal_groups", None)
    #         user_groups = gtool.getGroupsByUserId(member)
    #         print "user groups for member %s : "%member, user_groups
    #         if group_id not in user_groups:
    #             print "adding group ", group_id
    #             gr.addPrincipalToGroup(member.id, group_id)
            
     
    #Add local roles to a group
    if IRoleManager.providedBy(projet):
        log("adding roles (contributor and Editor) to " + group_id) 
        projet.manage_addLocalRoles(group_id, ['Contributor','Editor'])
    

    return
    def __iter__(self):
        for item in self.previous:
            pathkey = self.pathkey(*item.keys())[0]
            roleskey = self.roleskey(*item.keys())[0]

            if not pathkey or not roleskey or \
               roleskey not in item:    # not enough info
                yield item; continue

            obj = self.context.unrestrictedTraverse(item[pathkey].lstrip('/'), None)
            if obj is None:             # path doesn't exist
                yield item; continue

            if IRoleManager.providedBy(obj):
                new_settings = []
                groups = getToolByName(self.context, 'portal_groups')
                newrolemap = self.options.get('local-roles-mapping', {})
                if newrolemap:
                    newrolemap = newrolemap.split('\n')
                    newrolemap = dict([(t.split(':')[0].strip(),
                                     t.split(':')[1].strip())
                                 for t in newrolemap if ':' in t])
                for principal, roles in item[roleskey].items():
                    if roles:
                        if newrolemap:
                            roles = [newrolemap.get(r, r) for r in roles]
                        obj.manage_addLocalRoles(principal, roles)
                        obj.reindexObjectSecurity()
                        if HAS_GS:
                            new_settings.append({
                                'id': principal,
                                'type': groups.getGroupById(principal) and 'group' or 'user',
                                'roles': [r for r in roles if queryUtility(IRolesPageRole, r)],
                            })
                if HAS_GS and ILocalGroupSpacePASRoles.providedBy(obj):
                    roles_view = RolesView(obj, TestRequest())
                    roles_view.update_role_settings(new_settings)

            yield item
Ejemplo n.º 24
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    def __iter__(self):
        for item in self.previous:
            pathkey = self.pathkey(*item.keys())[0]
            roleskey = self.roleskey(*item.keys())[0]

            if not pathkey or not roleskey or \
               roleskey not in item:    # not enough info
                yield item
                continue

            obj = self.context.unrestrictedTraverse(item[pathkey].lstrip('/'), None)
            if obj is None:             # path doesn't exist
                yield item
                continue

            if IRoleManager.providedBy(obj):
                for principal, roles in item[roleskey].items():
                    if roles:
                        RoleAssignmentManager(obj).add_or_update_assignment(
                            SharingRoleAssignment(principal, roles))

            yield item
Ejemplo n.º 25
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    def __iter__(self):
        for item in self.previous:
            pathkey = self.pathkey(*item.keys())[0]
            roleskey = self.roleskey(*item.keys())[0]

            if not pathkey or not roleskey or \
               roleskey not in item:    # not enough info
                yield item
                continue

            obj = self.context.unrestrictedTraverse(item[pathkey].lstrip('/'),
                                                    None)
            if obj is None:  # path doesn't exist
                yield item
                continue

            if IRoleManager.providedBy(obj):
                for principal, roles in item[roleskey].items():
                    if roles:
                        RoleAssignmentManager(obj).add_or_update_assignment(
                            SharingRoleAssignment(principal, roles))

            yield item
Ejemplo n.º 26
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 def _assign_local_roles_to_managers(self, ml):
     assign_local_role('Owner', ml.managers, IRoleManager(ml))
Ejemplo n.º 27
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 def _assign_local_roles_to_managers(self):
     ml = self.context
     assign_local_role('Owner', ml.managers, IRoleManager(ml))
Ejemplo n.º 28
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    def update(self):
        
        # Allow the source to provide terms until we have more specific ones
        # from the query. Things do not go well if self.terms is None

        self._bound_source = None
        source = self.bound_source

        self.terms = SourceTerms(self.context, self.request, self.form, self.field, self, source)
        
        # If we have values in the request, use these to get the terms.
        # Otherwise, take the value from the current saved value.
        
        terms = []

        request_values = z3c.form.interfaces.NOVALUE
        if not self.ignoreRequest:
            request_values = self.extract(default=z3c.form.interfaces.NOVALUE)

        if request_values is not z3c.form.interfaces.NOVALUE:
            if not isinstance(request_values, (tuple, set, list)):
                request_values = (request_values,)

            for token in request_values:
                if not token or token == self.noValueToken:
                    continue
                try:
                    terms.append(source.getTermByToken(token))
                except LookupError:
                    # Term no longer available
                    if not self.ignoreMissing:
                        raise

        elif not self.ignoreContext:
            
            selection = zope.component.getMultiAdapter(
                (self.context, self.field), z3c.form.interfaces.IDataManager).query()
            
            if selection is z3c.form.interfaces.NOVALUE:
                selection = []
            elif not isinstance(selection, (tuple, set, list)):
                selection = [selection]
            
            for value in selection:
                if not value:
                    continue
                if HAS_AC and IRoleManager.providedBy(value):
                    if not checkPermission('zope2.View', value):
                        continue
                try:
                    terms.append(source.getTerm(value))
                except LookupError:
                    # Term no longer available
                    if not self.ignoreMissing:
                        raise

        # Set up query form

        subform = self.subform = QuerySubForm(QueryContext(), self.request, self.name)
        subform.update()

        # Don't carry on any search if we're ignoring the request
        if not self.ignoreRequest:
            data, errors = subform.extractData()
            if errors:
                return

            # perform the search

            query = data['query']
            if query is not None:
                query_terms = set(source.search(query))
                tokens = set([term.token for term in terms])
                for term in query_terms:
                    if term.token not in tokens:
                        terms.append(term)
        
        # set terms
        self.terms = QueryTerms(self.context, self.request, self.form, self.field, self, terms)

        # update widget - will set self.value
        self.updateQueryWidget()

        # add "novalue" option
        if self._radio and not self.required:
            self.items.insert(0, {
                'id': self.id + '-novalue',
                'name': self.name + ':list',
                'value': self.noValueToken,
                'label': self.noValueLabel,
                'checked': not self.value or self.value[0] == self.noValueToken,
                })
Ejemplo n.º 29
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    def getMostVisitedContent(self):
        site = getSite()
        site_url = site.absolute_url()
        r = redis.StrictRedis(host='localhost', port=6379, db=0)

        pipe = r.pipeline()

        timeslot = time.time() // 3600

        for hour in range(self.data.hours + 1):
            # We need to get all results, so we can filter out
            amount = r.zcard('tophits.%s' % (timeslot-hour))
            pipe.zrevrange('tophits.%s' % (timeslot-hour), 0, amount, withscores=True, score_cast_func=int)

        redis_results = pipe.execute()
        partial_results = {}
        for hour_result in redis_results:
            for result in hour_result:
                if result[0].endswith('.css') or\
                   result[0].endswith('.kss') or\
                   result[0].endswith('.gif') or\
                   result[0].endswith('.js'):
                    # We have a resource, just ignore it
                    continue

                count = partial_results.get(result[0], 0)
                count += result[1]
                partial_results[result[0]] = count

        # Filter out resources
        results = []
        for i in partial_results:
            if len(results) == self.data.max_results:
                # If we already have all results we need, then get out of loop
                break

            # We have a candidate, get the relative path
            rel_path = i[len(site_url)+1:]
            # Now let's get the proper object
            try:
                obj = site.restrictedTraverse(rel_path)
            except AttributeError:
                # Invalid resource. Ignore
                continue
            except KeyError:
                # Invalid resource. Ignore
                continue
            except NotFound:
                # Resource not found. Ignore
                continue
            except TypeError:
                # Invalid resource. Ignore
                continue
            except IndexError:
                # Invalid resource. Ignore
                continue

            # Let's check, we actually have a CT
            # XXX: Not sure which interface to use here. It should be common
            #      to AT and Dexterity types
            if not IRoleManager.providedBy(obj):
                continue

            # Finally, let's check that this object is of the type we
            # want
            if obj.portal_type in self.data.types:
                # Yeah ! append it to the results
                # XXX: Shall we store the hit number ? we will for now...
                results.append((obj, partial_results[i]))

        # Now, sort it using the number of hits
        results.sort(key=lambda x:x[1], reverse=True)

        return results
Ejemplo n.º 30
0
 def configure_development_options(self):
     for obj in self.site.listFolderContents():
         if IRoleManager.providedBy(obj):
             obj.manage_addLocalRoles(
                 DEVELOPMENT_USERS_GROUP,
                 ["Contributor", "Editor", "Reader"])
Ejemplo n.º 31
0
 def configure_development_options(self):
     for obj in self.site.listFolderContents():
         if IRoleManager.providedBy(
                 obj) and not IPrivateRoot.providedBy(obj):
             obj.manage_addLocalRoles(DEVELOPMENT_USERS_GROUP,
                                      ["Contributor", "Editor", "Reader"])
Ejemplo n.º 32
0
    def update(self):

        # Allow the source to provide terms until we have more specific ones
        # from the query. Things do not go well if self.terms is None

        self._bound_source = None
        source = self.bound_source

        self.terms = SourceTerms(self.context, self.request, self.form,
                                 self.field, self, source)

        # If we have values in the request, use these to get the terms.
        # Otherwise, take the value from the current saved value.

        terms = []

        request_values = z3c.form.interfaces.NOVALUE
        if not self.ignoreRequest:
            request_values = self.extract(default=z3c.form.interfaces.NOVALUE)

        if request_values is not z3c.form.interfaces.NOVALUE:
            if not isinstance(request_values, (tuple, set, list)):
                request_values = (request_values, )

            for token in request_values:
                if not token or token == self.noValueToken:
                    continue
                try:
                    terms.append(source.getTermByToken(token))
                except LookupError:
                    # Term no longer available
                    if not self.ignoreMissing:
                        raise

        elif not self.ignoreContext:

            selection = zope.component.getMultiAdapter(
                (self.context, self.field),
                z3c.form.interfaces.IDataManager).query()

            if selection is z3c.form.interfaces.NOVALUE:
                selection = []
            elif not isinstance(selection, (tuple, set, list)):
                selection = [selection]

            for value in selection:
                if not value:
                    continue
                if HAS_AC and IRoleManager.providedBy(value):
                    if not checkPermission('zope2.View', value):
                        continue
                try:
                    terms.append(source.getTerm(value))
                except LookupError:
                    # Term no longer available
                    if not self.ignoreMissing:
                        raise
        elif self.showDefault:
            adapter = zope.component.queryMultiAdapter(
                (self.context, self.request, self.form, self.field, self),
                z3c.form.interfaces.IValue,
                name='default')
            if adapter:
                default_value = adapter.get()
                if not isinstance(default_value, (tuple, set, list)):
                    default_value = [default_value]
                for value in default_value:
                    if not value:
                        continue
                    if HAS_AC and IRoleManager.providedBy(value):
                        if not checkPermission('zope2.View', value):
                            continue
                    try:
                        terms.append(source.getTerm(value))
                    except LookupError:
                        # Term no longer available
                        if not self.ignoreMissing:
                            raise

        # Set up query form

        subform = self.subform = QuerySubForm(QueryContext(), self.request,
                                              self.name)
        subform.update()

        # Don't carry on any search if we're ignoring the request
        if not self.ignoreRequest:
            data, errors = subform.extractData()
            if errors:
                return

            # perform the search

            query = data['query']
            if query is not None:
                query_terms = set(source.search(query))
                tokens = set([term.token for term in terms])
                for term in query_terms:
                    if term.token not in tokens:
                        terms.append(term)

        # set terms
        self.terms = QueryTerms(self.context, self.request, self.form,
                                self.field, self, terms)

        # update widget - will set self.value
        self.updateQueryWidget()