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# Copyright 2010 Canonical Ltd. This software is licensed under the
# GNU Affero General Public License version 3 (see the file LICENSE).
__metaclass__ = type
__all__ = [
'NameBlacklistAddView',
'NameBlacklistEditView',
'NameBlacklistNavigationMenu',
'NameBlacklistSetNavigationMenu',
'NameBlacklistSetView',
]
import re
from zope.app.form.browser import TextWidget
from zope.component import (
adapter,
getUtility,
)
from zope.interface import implements
from lp.app.browser.launchpadform import (
custom_widget,
LaunchpadFormView,
)
from lp.registry.browser import RegistryEditFormView
from lp.registry.interfaces.nameblacklist import (
INameBlacklist,
INameBlacklistSet,
)
from lp.services.webapp import action
from lp.services.webapp.breadcrumb import Breadcrumb
from lp.services.webapp.interfaces import IBreadcrumb
from lp.services.webapp.menu import (
ApplicationMenu,
enabled_with_permission,
Link,
NavigationMenu,
)
from lp.services.webapp.publisher import (
canonical_url,
LaunchpadView,
Navigation,
)
class NameBlacklistValidationMixin:
"""Validate regular expression when adding or editing."""
def validate(self, data):
"""Validate regular expression."""
regexp = data['regexp']
try:
re.compile(regexp)
name_blacklist_set = getUtility(INameBlacklistSet)
if (INameBlacklistSet.providedBy(self.context)
or self.context.regexp != regexp):
# Check if the regular expression already exists if a
# new expression is being created or if an existing
# regular expression has been modified.
if name_blacklist_set.getByRegExp(regexp) is not None:
self.setFieldError(
'regexp',
'This regular expression already exists.')
except re.error, e:
self.setFieldError(
'regexp',
'Invalid regular expression: %s' % e)
class NameBlacklistEditView(NameBlacklistValidationMixin,
RegistryEditFormView):
"""View for editing a blacklist expression."""
schema = INameBlacklist
field_names = ['regexp', 'admin', 'comment']
label = "Edit a blacklist expression"
page_title = label
@property
def cancel_url(self):
return canonical_url(getUtility(INameBlacklistSet))
next_url = cancel_url
class NameBlacklistAddView(NameBlacklistValidationMixin, LaunchpadFormView):
"""View for adding a blacklist expression."""
schema = INameBlacklist
field_names = ['regexp', 'admin', 'comment']
label = "Add a new blacklist expression"
page_title = label
custom_widget('regexp', TextWidget, displayWidth=60)
@property
def cancel_url(self):
"""See `LaunchpadFormView`."""
return canonical_url(self.context)
next_url = cancel_url
@action("Add to blacklist", name='add')
def add_action(self, action, data):
name_blacklist_set = getUtility(INameBlacklistSet)
name_blacklist_set.create(
regexp=data['regexp'],
comment=data['comment'],
admin=data['admin'],
)
self.request.response.addInfoNotification(
'Regular expression "%s" has been added to the name blacklist.'
% data['regexp'])
class NameBlacklistSetView(LaunchpadView):
"""View for /+nameblacklists top level collection."""
label = (
'Blacklist for names of Launchpad pillars and persons')
page_title = label
class NameBlacklistSetNavigation(Navigation):
usedfor = INameBlacklistSet
def traverse(self, name):
return self.context.get(name)
class NameBlacklistSetNavigationMenu(NavigationMenu):
"""Action menu for NameBlacklistSet."""
usedfor = INameBlacklistSet
facet = 'overview'
links = [
'add_blacklist_expression',
]
@enabled_with_permission('launchpad.Edit')
def add_blacklist_expression(self):
return Link('+add', 'Add blacklist expression', icon='add')
class NameBlacklistNavigationMenu(ApplicationMenu):
"""Action menu for NameBlacklist."""
usedfor = INameBlacklist
facet = 'overview'
links = [
'edit_blacklist_expression',
]
@enabled_with_permission('launchpad.Edit')
def edit_blacklist_expression(self):
return Link('+edit', 'Edit blacklist expression', icon='edit')
@adapter(INameBlacklistSet)
class NameBlacklistSetBreadcrumb(Breadcrumb):
"""Return a breadcrumb for an `INameBlackListSet`."""
implements(IBreadcrumb)
text = "Name Blacklist"
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