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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).
"""Vostok's custom publication."""
__metaclass__ = type
__all__ = [
'VostokBrowserRequest',
'VostokLayer',
'VostokRootNavigation',
'vostok_request_publication_factory',
]
from zope.component import getUtility
from zope.interface import (
implements,
Interface,
)
from zope.publisher.interfaces.browser import (
IBrowserRequest,
IDefaultBrowserLayer,
)
from canonical.launchpad.webapp import (
canonical_url,
Navigation,
)
from canonical.launchpad.webapp.publication import LaunchpadBrowserPublication
from canonical.launchpad.webapp.servers import (
LaunchpadBrowserRequest,
LaunchpadBrowserResponse,
VirtualHostRequestPublicationFactory,
)
from canonical.launchpad.webapp.vhosts import allvhosts
from lp.registry.interfaces.distribution import IDistributionSet
class VostokLayer(IBrowserRequest, IDefaultBrowserLayer):
"""The Vostok layer."""
class VostokRequestMixin:
"""This mixin defines behaviour for the real and test Vostok requests."""
implements(VostokLayer)
def getRootURL(self, rootsite):
"""See `IBasicLaunchpadRequest`."""
return allvhosts.configs['vostok'].rooturl
class VostokBrowserRequest(VostokRequestMixin, LaunchpadBrowserRequest):
"""Request class for Vostok layer."""
def _createResponse(self):
"""As per zope.publisher.browser.BrowserRequest._createResponse"""
return VostokBrowserResponse()
class VostokBrowserResponse(LaunchpadBrowserResponse):
def redirect(self, location, status=None, trusted=False,
temporary_if_possible=False):
"""Override the parent method to make redirects untrusted by default.
This is so that we don't allow redirects to any hosts other than
vostok's.
"""
# Need to call LaunchpadBrowserResponse.redirect() directly because
# the temporary_if_possible argument only exists there.
LaunchpadBrowserResponse.redirect(
self, location, status=status, trusted=trusted,
temporary_if_possible=temporary_if_possible)
class IVostokRoot(Interface):
"""Marker interface for the root vostok object."""
class VostokRoot:
"""The root object for the Vostok site.
No behaviour here, it just exists so it can have view and navigation
registrations attached to it.
"""
implements(IVostokRoot)
class VostokRootNavigation(Navigation):
usedfor = IVostokRoot
def traverse(self, name):
distro = getUtility(IDistributionSet)[name]
if distro is not None and distro.name != name:
# This distro was accessed through one of its aliases, so we
# must redirect to its canonical URL.
return self.redirectSubTree(canonical_url(distro), status=301)
return distro
class VostokBrowserPublication(LaunchpadBrowserPublication):
root_object_interface = IVostokRoot
def vostok_request_publication_factory():
return VirtualHostRequestPublicationFactory(
'vostok', VostokBrowserRequest, VostokBrowserPublication)
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