How to use do_DELETE method in lettuce-tools

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test_firewall_driver.py

Source:test_firewall_driver.py

1# Copyright 2013 VMware, Inc2#3#    Licensed under the Apache License, Version 2.0 (the "License"); you may4#    not use this file except in compliance with the License. You may obtain5#    a copy of the License at6#7#         http://www.apache.org/licenses/LICENSE-2.08#9#    Unless required by applicable law or agreed to in writing, software10#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT11#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the12#    License for the specific language governing permissions and limitations13#    under the License.14#15import contextlib16import mock17import webob.exc18from neutron import context19from neutron.db.firewall import firewall_db20from neutron.openstack.common import uuidutils21from neutron.plugins.vmware.vshield.common import exceptions as vcns_exc22from neutron.plugins.vmware.vshield import vcns_driver23from neutron.tests.unit.db.firewall import test_db_firewall24from neutron.tests.unit import vmware25from neutron.tests.unit.vmware.vshield import fake_vcns26_uuid = uuidutils.generate_uuid27VSE_ID = 'edge-1'28ROUTER_ID = '42f95450-5cc9-44e4-a744-1320e592a9d5'29VCNS_CONFIG_FILE = vmware.get_fake_conf("vcns.ini.test")30class VcnsDriverTestCase(test_db_firewall.FirewallPluginDbTestCase,31                         firewall_db.Firewall_db_mixin):32    def vcns_firewall_patch(self):33        instance = self.mock_vcns.start()34        instance.return_value.update_firewall.side_effect = (35            self.fc2.update_firewall)36        instance.return_value.delete_firewall.side_effect = (37            self.fc2.delete_firewall)38        instance.return_value.update_firewall_rule.side_effect = (39            self.fc2.update_firewall_rule)40        instance.return_value.delete_firewall_rule.side_effect = (41            self.fc2.delete_firewall_rule)42        instance.return_value.add_firewall_rule_above.side_effect = (43            self.fc2.add_firewall_rule_above)44        instance.return_value.add_firewall_rule.side_effect = (45            self.fc2.add_firewall_rule)46        instance.return_value.get_firewall.side_effect = (47            self.fc2.get_firewall)48        instance.return_value.get_firewall_rule.side_effect = (49            self.fc2.get_firewall_rule)50    def setUp(self):51        self.config_parse(args=['--config-file', VCNS_CONFIG_FILE])52        # mock vcns53        self.fc2 = fake_vcns.FakeVcns(unique_router_name=False)54        self.mock_vcns = mock.patch(vmware.VCNS_NAME, autospec=True)55        self.vcns_firewall_patch()56        self.driver = vcns_driver.VcnsDriver(mock.Mock())57        super(VcnsDriverTestCase, self).setUp()58        self.addCleanup(self.fc2.reset_all)59        self.addCleanup(self.mock_vcns.stop)60        self.tenant_id = _uuid()61        self.subnet_id = _uuid()62class TestEdgeFwDriver(VcnsDriverTestCase):63    def _make_firewall_dict_with_rules(self, context, firewall_id):64        fw = self.get_firewall(context, firewall_id)65        fw_policy_id = fw['firewall_policy_id']66        if fw_policy_id:67            firewall_policy_db = self._get_firewall_policy(68                context, fw_policy_id)69            fw['firewall_rule_list'] = [70                self._make_firewall_rule_dict(fw_rule_db)71                for fw_rule_db in firewall_policy_db['firewall_rules']72            ]73        return fw74    def _compare_firewall_rule_lists(self, firewall_policy_id,75                                     list1, list2):76        for r1, r2 in zip(list1, list2):77            rule = r1['firewall_rule']78            rule['firewall_policy_id'] = firewall_policy_id79            for k in rule:80                self.assertEqual(rule[k], r2[k])81    def test_create_and_get_firewall(self):82        ctx = context.get_admin_context()83        name = 'firewall'84        with contextlib.nested(self.firewall_rule(name='fwr1',85                                                  do_delete=False),86                               self.firewall_rule(name='fwr2',87                                                  do_delete=False),88                               self.firewall_rule(name='fwr3',89                                                  do_delete=False)) as fr:90            fw_rule_ids = [r['firewall_rule']['id'] for r in fr]91            with self.firewall_policy(firewall_rules=fw_rule_ids,92                                      do_delete=False) as fwp:93                fwp_id = fwp['firewall_policy']['id']94                with self.firewall(name=name,95                                   firewall_policy_id=fwp_id) as firewall:96                    fw_create = firewall['firewall']97                    fw_expect = self._make_firewall_dict_with_rules(98                        ctx, fw_create['id'])99                    self.driver.update_firewall(ctx, VSE_ID, fw_expect)100                    fw_get = self.driver.get_firewall(ctx, VSE_ID)101                    self._compare_firewall_rule_lists(102                        fwp_id, fw_get['firewall_rule_list'],103                        fw_expect['firewall_rule_list'])104    def test_update_firewall_with_rules(self):105        ctx = context.get_admin_context()106        name = 'new_firewall'107        with contextlib.nested(self.firewall_rule(name='fwr1',108                                                  do_delete=False),109                               self.firewall_rule(name='fwr2',110                                                  do_delete=False),111                               self.firewall_rule(name='fwr3',112                                                  do_delete=False)) as fr:113            fw_rule_ids = [r['firewall_rule']['id'] for r in fr]114            with self.firewall_policy(firewall_rules=fw_rule_ids,115                                      do_delete=False) as fwp:116                fwp_id = fwp['firewall_policy']['id']117                with self.firewall(name=name,118                                   firewall_policy_id=fwp_id) as firewall:119                    fw_create = firewall['firewall']120                    fw_create = self._make_firewall_dict_with_rules(121                        ctx, fw_create['id'])122                    self.driver.update_firewall(ctx, VSE_ID, fw_create)123                    data = {'firewall_rule': {'name': name,124                                              'source_port': '10:20',125                                              'destination_port': '30:40'}}126                    self.new_update_request('firewall_rules', data,127                                            fr[0]['firewall_rule']['id'])128                    fw_expect = self._make_firewall_dict_with_rules(129                        ctx, fw_create['id'])130                    self.driver.update_firewall(ctx, VSE_ID, fw_expect)131                    fw_get = self.driver.get_firewall(132                        ctx, VSE_ID)133                    self._compare_firewall_rule_lists(134                        fwp_id, fw_get['firewall_rule_list'],135                        fw_expect['firewall_rule_list'])136    def test_delete_firewall(self):137        ctx = context.get_admin_context()138        name = 'firewall'139        with contextlib.nested(self.firewall_rule(name='fwr1',140                                                  do_delete=False),141                               self.firewall_rule(name='fwr2',142                                                  do_delete=False),143                               self.firewall_rule(name='fwr3',144                                                  do_delete=False)) as fr:145            fw_rule_ids = [r['firewall_rule']['id'] for r in fr]146            with self.firewall_policy(firewall_rules=fw_rule_ids,147                                      do_delete=False) as fwp:148                fwp_id = fwp['firewall_policy']['id']149                with self.firewall(name=name,150                                   firewall_policy_id=fwp_id) as firewall:151                    fw_create = firewall['firewall']152                    fw_expect = self._make_firewall_dict_with_rules(153                        ctx, fw_create['id'])154                    self.driver.update_firewall(ctx, VSE_ID, fw_expect)155                    self.driver.delete_firewall(ctx, VSE_ID)156                    fw_get = self.driver.get_firewall(157                        ctx, VSE_ID)158                    self.assertFalse(fw_get['firewall_rule_list'])159    def test_update_firewall_rule(self):160        ctx = context.get_admin_context()161        name = 'new_firewall'162        with contextlib.nested(self.firewall_rule(name='fwr1',163                                                  do_delete=False)) as fr:164            fw_rule_ids = [r['firewall_rule']['id'] for r in fr]165            with self.firewall_policy(firewall_rules=fw_rule_ids,166                                      do_delete=False) as fwp:167                fwp_id = fwp['firewall_policy']['id']168                with self.firewall(name=name,169                                   firewall_policy_id=fwp_id) as firewall:170                    fw_create = firewall['firewall']171                    fw_create = self._make_firewall_dict_with_rules(172                        ctx, fw_create['id'])173                    self.driver.update_firewall(ctx, VSE_ID, fw_create)174                    data = {'firewall_rule': {'name': name,175                                              'source_port': '10:20',176                                              'destination_port': '30:40'}}177                    req = self.new_update_request(178                        'firewall_rules', data,179                        fr[0]['firewall_rule']['id'])180                    res = self.deserialize(self.fmt,181                                           req.get_response(self.ext_api))182                    rule_expect = res['firewall_rule']183                    rule_expect['edge_id'] = VSE_ID184                    self.driver.update_firewall_rule(185                        ctx, rule_expect['id'], VSE_ID, rule_expect)186                    rule_get = self.driver.get_firewall_rule(187                        ctx, rule_expect['id'], VSE_ID)188                    for k, v in rule_get['firewall_rule'].items():189                        self.assertEqual(rule_expect[k], v)190    def test_delete_firewall_rule(self):191        ctx = context.get_admin_context()192        name = 'new_firewall'193        with contextlib.nested(self.firewall_rule(name='fwr1',194                                                  do_delete=False),195                               self.firewall_rule(name='fwr2',196                                                  do_delete=False)) as fr:197            fw_rule_ids = [r['firewall_rule']['id'] for r in fr]198            with self.firewall_policy(firewall_rules=fw_rule_ids,199                                      do_delete=False) as fwp:200                fwp_id = fwp['firewall_policy']['id']201                with self.firewall(name=name,202                                   firewall_policy_id=fwp_id) as firewall:203                    fw_create = firewall['firewall']204                    fw_create = self._make_firewall_dict_with_rules(205                        ctx, fw_create['id'])206                    self.driver.update_firewall(ctx, VSE_ID, fw_create)207                    fr[0]['firewall_rule']['edge_id'] = VSE_ID208                    self.driver.delete_firewall_rule(209                        ctx, fr[0]['firewall_rule']['id'],210                        VSE_ID)211                    self.assertRaises(vcns_exc.VcnsNotFound,212                                      self.driver.get_firewall_rule,213                                      ctx, fr[0]['firewall_rule']['id'],214                                      VSE_ID)215    def test_insert_rule(self):216        ctx = context.get_admin_context()217        with self.firewall_policy() as fwp:218            fwp_id = fwp['firewall_policy']['id']219            with self.firewall(firewall_policy_id=fwp_id) as firewall:220                fw_create = firewall['firewall']221                fw_create = self._make_firewall_dict_with_rules(222                    ctx, fw_create['id'])223                self.driver.update_firewall(ctx, VSE_ID, fw_create)224                with contextlib.nested(self.firewall_rule(name='fwr0',225                                                          do_delete=False),226                                       self.firewall_rule(name='fwr1',227                                                          do_delete=False),228                                       self.firewall_rule(name='fwr2',229                                                          do_delete=False),230                                       self.firewall_rule(name='fwr3',231                                                          do_delete=False),232                                       self.firewall_rule(name='fwr4',233                                                          do_delete=False),234                                       self.firewall_rule(name='fwr5',235                                                          do_delete=False),236                                       self.firewall_rule(237                                           name='fwr6',238                                           do_delete=False)) as fwr:239                    # test insert when rule list is empty240                    fwr0_id = fwr[0]['firewall_rule']['id']241                    self._rule_action('insert', fwp_id, fwr0_id,242                                      insert_before=None,243                                      insert_after=None,244                                      expected_code=webob.exc.HTTPOk.code)245                    fw_update = self._make_firewall_dict_with_rules(246                        ctx, fw_create['id'])247                    self.driver.update_firewall(ctx, VSE_ID, fw_update)248                    # test insert at top of list above existing rule249                    fwr1_id = fwr[1]['firewall_rule']['id']250                    self._rule_action('insert', fwp_id, fwr1_id,251                                      insert_before=fwr0_id,252                                      insert_after=None,253                                      expected_code=webob.exc.HTTPOk.code)254                    fw_expect = self._make_firewall_dict_with_rules(255                        ctx, fw_create['id'])256                    rule_info = {'firewall_rule_id': fwr1_id,257                                 'insert_before': fwr0_id,258                                 'insert_after': None}259                    rule = fwr[1]['firewall_rule']260                    self.driver.insert_rule(ctx, rule_info, VSE_ID, rule)261                    fw_get = self.driver.get_firewall(262                        ctx, VSE_ID)263                    self._compare_firewall_rule_lists(264                        fwp_id, fw_get['firewall_rule_list'],265                        fw_expect['firewall_rule_list'])266                    # test insert at bottom of list267                    fwr2_id = fwr[2]['firewall_rule']['id']268                    self._rule_action('insert', fwp_id, fwr2_id,269                                      insert_before=None,270                                      insert_after=fwr0_id,271                                      expected_code=webob.exc.HTTPOk.code)272                    fw_expect = self._make_firewall_dict_with_rules(273                        ctx, fw_create['id'])274                    rule_info = {'firewall_rule_id': fwr2_id,275                                 'insert_before': None,276                                 'insert_after': fwr0_id}277                    rule = fwr[2]['firewall_rule']278                    self.driver.insert_rule(ctx, rule_info, VSE_ID, rule)279                    fw_get = self.driver.get_firewall(280                        ctx, VSE_ID)281                    self._compare_firewall_rule_lists(282                        fwp_id, fw_get['firewall_rule_list'],283                        fw_expect['firewall_rule_list'])284                    # test insert in the middle of the list using285                    # insert_before286                    fwr3_id = fwr[3]['firewall_rule']['id']287                    self._rule_action('insert', fwp_id, fwr3_id,288                                      insert_before=fwr2_id,289                                      insert_after=None,290                                      expected_code=webob.exc.HTTPOk.code)291                    fw_expect = self._make_firewall_dict_with_rules(292                        ctx, fw_create['id'])293                    rule_info = {'firewall_rule_id': fwr3_id,294                                 'insert_before': fwr2_id,295                                 'insert_after': None}296                    rule = fwr[3]['firewall_rule']297                    self.driver.insert_rule(ctx, rule_info, VSE_ID, rule)298                    fw_get = self.driver.get_firewall(299                        ctx, VSE_ID)300                    self._compare_firewall_rule_lists(301                        fwp_id, fw_get['firewall_rule_list'],302                        fw_expect['firewall_rule_list'])303                    # test insert in the middle of the list using304                    # insert_after305                    fwr4_id = fwr[4]['firewall_rule']['id']306                    self._rule_action('insert', fwp_id, fwr4_id,307                                      insert_before=None,308                                      insert_after=fwr3_id,309                                      expected_code=webob.exc.HTTPOk.code)310                    fw_expect = self._make_firewall_dict_with_rules(311                        ctx, fw_create['id'])312                    rule_info = {'firewall_rule_id': fwr4_id,313                                 'insert_before': None,314                                 'insert_after': fwr3_id}315                    rule = fwr[4]['firewall_rule']316                    self.driver.insert_rule(ctx, rule_info, VSE_ID, rule)317                    fw_get = self.driver.get_firewall(318                        ctx, VSE_ID)319                    self._compare_firewall_rule_lists(320                        fwp_id, fw_get['firewall_rule_list'],321                        fw_expect['firewall_rule_list'])322                    # test insert when both insert_before and323                    # insert_after are set324                    fwr5_id = fwr[5]['firewall_rule']['id']325                    self._rule_action('insert', fwp_id, fwr5_id,326                                      insert_before=fwr4_id,327                                      insert_after=fwr4_id,328                                      expected_code=webob.exc.HTTPOk.code)329                    fw_expect = self._make_firewall_dict_with_rules(330                        ctx, fw_create['id'])331                    rule_info = {'firewall_rule_id': fwr5_id,332                                 'insert_before': fwr4_id,333                                 'insert_after': fwr4_id}334                    rule = fwr[5]['firewall_rule']335                    self.driver.insert_rule(ctx, rule_info, VSE_ID, rule)336                    fw_get = self.driver.get_firewall(337                        ctx, VSE_ID)338                    self._compare_firewall_rule_lists(339                        fwp_id, fw_get['firewall_rule_list'],...

mixins.py

Source:mixins.py

1# Copyright 2015 Alcatel-Lucent USA Inc.2#3#    Licensed under the Apache License, Version 2.0 (the "License"); you may4#    not use this file except in compliance with the License. You may obtain5#    a copy of the License at6#7#         http://www.apache.org/licenses/LICENSE-2.08#9#    Unless required by applicable law or agreed to in writing, software10#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT11#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the12#    License for the specific language governing permissions and limitations13#    under the License.14"""15These mixins extend BaseTestCase, so your testclass should only extend the16mixins it needs. The reason for this design is that now every mixin a test17extends will have 'setup_clients' called automagically for you. A test class'18structure would look like:19    BaseTestCase20         |21     BaseMixin22    /    |    \23mixin1 mixin2  mixin324    \    |    /25     TestClass26"""27import contextlib2829from tempest.common.utils import data_utils30from tempest.test import BaseTestCase31from . import bgpvpn_client3233class BaseMixin(BaseTestCase):34    """Base class for all Mixins.3536    This class exists because calling get_client_manager() in every mixin would37    reinitialize all the clients over and over again. So don't use38    get_client_manager in the mixins, but cls.manager and cls.admin_manager39    instead.40    """41    @classmethod42    def setup_clients(cls):43        super(BaseMixin, cls).setup_clients()44        cls.manager = cls.get_client_manager()45        cls.admin_manager = cls.get_client_manager(credential_type='admin')46        cls.manager.bgpvpn_client = bgpvpn_client.BGPVPNClient(47                                        cls.manager.auth_provider)48        cls.admin_manager.bgpvpn_client = bgpvpn_client.BGPVPNClient(49                                        cls.manager.auth_provider)50        cls.manager.net_assoc_client = bgpvpn_client.BGPVPNNetworkAssociationClient(51                                            cls.manager.auth_provider)52        cls.admin_manager.net_assoc_client = bgpvpn_client.BGPVPNNetworkAssociationClient(53                                            cls.manager.auth_provider)54        cls.manager.rtr_assoc_client = bgpvpn_client.BGPVPNRouterAssociationClient(55                                            cls.manager.auth_provider)56        cls.admin_manager.rtr_assoc_client = bgpvpn_client.BGPVPNRouterAssociationClient(57                                            cls.manager.auth_provider)5859class BGPVPNMixin(BaseMixin):6061    @classmethod62    def setup_clients(cls):63        super(BGPVPNMixin, cls).setup_clients()64        cls.bgpvpn_client = cls.manager.bgpvpn_client65        cls.bgpvpn_client_admin = cls.admin_manager.bgpvpn_client66        cls.net_assoc_client = cls.manager.net_assoc_client67        cls.net_assoc_client_admin = cls.admin_manager.net_assoc_client68        cls.rtr_assoc_client = cls.manager.rtr_assoc_client69        cls.rtr_assoc_client_admin = cls.admin_manager.rtr_assoc_client7071    @contextlib.contextmanager72    def bgpvpn(self, do_delete=True, as_admin=True, **kwargs):73        client = self.bgpvpn_client_admin if as_admin else self.bgpvpn_client74        bgpvpn = {'name': data_utils.rand_name('bgpvpn')}75        bgpvpn.update(kwargs)76        bgpvpn = client.create_bgpvpn(**bgpvpn)77        try:78            yield bgpvpn79        finally:80            if do_delete:81                client.delete_bgpvpn(bgpvpn['id'])8283    @contextlib.contextmanager84    def router_assocation(self, router_id, bgpvpn_id, do_delete=True,85                          as_admin=False, **kwargs):86        client = (self.rtr_assoc_client_admin if as_admin87                  else self.rtr_assoc_client)88        rtr_assoc = {'router_id': router_id}89        rtr_assoc.update(kwargs)90        rtr_assoc = client.create_router_assocation(bgpvpn_id, **rtr_assoc)91        try:92            yield rtr_assoc93        finally:94            if do_delete:95                client.delete_router_assocation(rtr_assoc['id'], bgpvpn_id)9697    @contextlib.contextmanager98    def network_assocation(self, network_id, bgpvpn_id, do_delete=True,99                           as_admin=False, **kwargs):100        client = (self.net_assoc_client_admin if as_admin101                  else self.net_assoc_client)102        net_assoc = {'network_id': network_id}103        net_assoc.update(kwargs)104        net_assoc = client.create_network_association(bgpvpn_id, **net_assoc)105        try:106            yield net_assoc107        finally:108            if do_delete:109                client.delete_network_association(net_assoc['id'], bgpvpn_id)110111112class NetworkMixin(BaseMixin):113114    @classmethod115    def setup_clients(cls):116        super(NetworkMixin, cls).setup_clients()117        cls.network_client = cls.manager.network_client118        cls.network_client_admin = cls.admin_manager.network_client119        cls.networks_client = cls.manager.networks_client120        cls.networks_client_admin = cls.admin_manager.networks_client121        cls.subnets_client = cls.manager.subnets_client122        cls.subnets_client_admin = cls.admin_manager.subnets_client123124    @contextlib.contextmanager125    def network(self, do_delete=True, as_admin=False, **kwargs):126        client = (self.networks_client_admin if as_admin127                  else self.networks_client)128        network = {'name': data_utils.rand_name('network')}129        network.update(kwargs)130        network = client.create_network(**network)['network']131        try:132            yield network133        finally:134            if do_delete:135                client.delete_network(network['id'])136137    @contextlib.contextmanager138    def subnet(self, cidr, do_delete=True, as_admin=False, **kwargs):139        client = self.subnets_client_admin if as_admin else self.subnets_client140        subnet = {'name': data_utils.rand_name('subnet'),141                  'cidr': cidr}142        subnet.update(kwargs)143        subnet = client.create_subnet(**subnet)['subnet']144        try:145            yield subnet146        finally:147            if do_delete:148                client.delete_subnet(subnet['id'])149150    @contextlib.contextmanager151    def port(self, network_id, do_delete=True, as_admin=False, **kwargs):152        client = self.network_client_admin if as_admin else self.network_client153        port = {'name': data_utils.rand_name('port'),154                'network_id': network_id}155        port.update(kwargs)156        port = client.create_port(**port)['port']157        try:158            yield port159        finally:160            if do_delete:161                client.delete_port(port['id'])162163164class L3Mixin(BaseMixin):165166    @classmethod167    def setup_clients(cls):168        super(L3Mixin, cls).setup_clients()169        cls.routers_client = cls.manager.routers_client170        cls.routers_client_admin = cls.admin_manager.routers_client171172    @contextlib.contextmanager173    def router(self, do_delete=True, as_admin=False, **kwargs):174        client = self.routers_client_admin if as_admin else self.routers_client175        router = {'name': data_utils.rand_name('router')}176        router.update(kwargs)177        router = client.create_router(**router)['router']178        try:179            yield router180        finally:181            if do_delete:
...

eventhandlers.py

Source:eventhandlers.py

1from bungenicms.publisher import config2from bungenicms.publisher.utils import get_workflow_name3from bungenicms.publisher.utils import is_temporary, is_action_possible4from plone.app.linkintegrity.interfaces import ILinkIntegrityInfo5_marker = '_publisher_event_already_handled'6def publish_after_transition(obj, event):7    """ This event handler is executed after each transition and8    publishes the object with ftw.publisher on certain transitions.9    Also when retracting an object, the object will be published,10    since we should not delete anything unless it's delete from the11    sender instance too. This is necessary for preventing12    inconsistency, which could occur when deleting a folder which13    contains published objects on the reciever site.14    """15    # the event handler will be run multiple times, so we need to16    # remember which event we've already handled.17    if getattr(event, _marker, False):18        return19    else:20        setattr(event, _marker, True)21    # when there is no transition for the state change, we do nothing22    if not event.transition:23        return24    # do nothing with temprorary objects25    if is_temporary(obj):26        return27    # check if we should handle this transaction28    wf_transition = (event.workflow.__name__, event.transition.__name__)29    if wf_transition in config.PUSH_TRANSITIONS:30        action = 'push'31    elif wf_transition in config.DELETE_TRANSITIONS:32        action = 'delete'33    else:34        return35    if is_action_possible(obj, action):36        if action == 'push':37            obj.restrictedTraverse('publisher.publish')()38        elif action == 'delete':39            obj.restrictedTraverse('publisher.delete')()40def handle_remove_event(obj, event):41    """If an object will be removed on the senders instance, we need to create a42    publisher delete job.43    """44    # the event is notified for every subobject, but we only want to check45    # the top object which the users tries to delete46    if obj is not event.object:47        return48    workflow = get_workflow_name(obj)49    if not workflow or workflow not in config.PUBLISHING_WORKFLOWS:50        # we don't have a workflow or the workflow does not publish ever - so we51        # don't need to delete anything on the receiver.52        return53    # the event handler is fired twice (once from link integrity check), but54    # we just want to do our stuff once. And we should only do it if the user55    # already did confirm.56    do_delete = False57    request = getattr(obj, 'REQUEST', None)58    if request is None:59        do_delete = True60    else:61        info = ILinkIntegrityInfo(request)62        if not info.integrityCheckingEnabled():63            do_delete = True64        elif info.isConfirmedItem(obj):65            do_delete = True66    if request.URL.endswith('/sl_delete_object'):67        do_delete = True68    if request.has_key('form.submitted') and \69            request.URL.endswith('/delete_confirmation'):70        do_delete = True71    if request.URL.endswith('/folder_delete'):72        do_delete = True73    if request.has_key('form.button.Cancel'):74        do_delete = True75    # register the job76    if do_delete:...

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