def callObject(self, request, ob):
"""See `zope.publisher.interfaces.IPublication`.
Our implementation make sure that no result is returned on
redirect.
It also sets the launchpad.userid and launchpad.pageid WSGI
environment variables.
"""
request._publicationticks_start = tickcount.tickcount()
if request.response.getStatus() in [301, 302, 303, 307]:
return ''
request.setInWSGIEnvironment(
'launchpad.userid', request.principal.id)
# The view may be security proxied
view = removeSecurityProxy(ob)
# It's possible that the view is a bound method.
view = getattr(view, 'im_self', view)
context = removeSecurityProxy(getattr(view, 'context', None))
pageid = self.constructPageID(view, context)
request.setInWSGIEnvironment('launchpad.pageid', pageid)
# And spit the pageid out to our tracelog.
tracelog(request, 'p', pageid)
# For status URLs, where we really don't want to have any DB access
# at all, ensure that all flag lookups will stop early.
if pageid in (
'RootObject:OpStats', 'RootObject:+opstats',
'RootObject:+haproxy'):
request.features = NullFeatureController()
features.install_feature_controller(request.features)
# Calculate the hard timeout: needed because featureflags can be used
# to control the hard timeout, and they trigger DB access, but our
# DB tracers are not safe for reentrant use, so we must do this
# outside of the SQL stack. We must also do it after traversal so that
# the view is known and can be used in scope resolution. As we
# actually stash the pageid after afterTraversal, we need to do this
# even later.
da.set_permit_timeout_from_features(True)
da._get_request_timeout()
if isinstance(removeSecurityProxy(ob), METHOD_WRAPPER_TYPE):
# this is a direct call on a C-defined method such as __repr__ or
# dict.__setitem__. Apparently publishing this is possible and
# acceptable, at least in the case of
# lp.services.webapp.servers.PrivateXMLRPCPublication.
# mapply cannot handle these methods because it cannot introspect
# them. We'll just call them directly.
return ob(*request.getPositionalArguments())
return mapply(ob, request.getPositionalArguments(), request)
def test_threadGetFlag(self):
self.populateStore()
# the start-of-request handler will do something like this:
controller, call_log = self.makeControllerInScopes(["default", "beta_user"])
install_feature_controller(controller)
try:
# then application code can simply ask without needing a context
# object
self.assertEqual(u"4.0", getFeatureFlag("ui.icing"))
finally:
install_feature_controller(None)
def task_init(dbuser):
"""Prepare to run a task.
:param dbuser: The database user to use for running the task.
"""
ensure_zcml()
transaction.abort()
store = IStore(Job)
getUtility(IZStorm).remove(store)
store.close()
dbconfig.override(dbuser=dbuser, isolation_level='read_committed')
install_feature_controller(make_script_feature_controller('celery'))
def task_init(dbuser):
"""Prepare to run a task.
:param dbuser: The database user to use for running the task.
"""
ensure_zcml()
transaction.abort()
store = IStore(Job)
getUtility(IZStorm).remove(store)
store.close()
dbconfig.override(dbuser=dbuser, isolation_level='read_committed')
install_feature_controller(make_script_feature_controller('celery'))
def test_threadGetFlag(self):
self.populateStore()
# the start-of-request handler will do something like this:
controller, call_log = self.makeControllerInScopes(
['default', 'beta_user'])
install_feature_controller(controller)
try:
# then application code can simply ask without needing a context
# object
self.assertEqual(u'4.0', getFeatureFlag('ui.icing'))
finally:
install_feature_controller(None)
def callObject(self, request, ob):
"""See `zope.publisher.interfaces.IPublication`.
Our implementation make sure that no result is returned on
redirect.
It also sets the launchpad.userid and launchpad.pageid WSGI
environment variables.
"""
request._publicationticks_start = tickcount.tickcount()
if request.response.getStatus() in [301, 302, 303, 307]:
return ''
request.setInWSGIEnvironment('launchpad.userid', request.principal.id)
# The view may be security proxied
view = removeSecurityProxy(ob)
# It's possible that the view is a bound method.
view = getattr(view, 'im_self', view)
context = removeSecurityProxy(getattr(view, 'context', None))
pageid = self.constructPageID(view, context)
request.setInWSGIEnvironment('launchpad.pageid', pageid)
# And spit the pageid out to our tracelog.
tracelog(request, 'p', pageid)
# For status URLs, where we really don't want to have any DB access
# at all, ensure that all flag lookups will stop early.
if pageid in ('RootObject:OpStats', 'RootObject:+opstats',
'RootObject:+haproxy'):
request.features = NullFeatureController()
features.install_feature_controller(request.features)
# Calculate the hard timeout: needed because featureflags can be used
# to control the hard timeout, and they trigger DB access, but our
# DB tracers are not safe for reentrant use, so we must do this
# outside of the SQL stack. We must also do it after traversal so that
# the view is known and can be used in scope resolution. As we
# actually stash the pageid after afterTraversal, we need to do this
# even later.
da.set_permit_timeout_from_features(True)
da._get_request_timeout()
if isinstance(removeSecurityProxy(ob), METHOD_WRAPPER_TYPE):
# this is a direct call on a C-defined method such as __repr__ or
# dict.__setitem__. Apparently publishing this is possible and
# acceptable, at least in the case of
# lp.services.webapp.servers.PrivateXMLRPCPublication.
# mapply cannot handle these methods because it cannot introspect
# them. We'll just call them directly.
return ob(*request.getPositionalArguments())
return mapply(ob, request.getPositionalArguments(), request)
def _setUp(self):
"""Set the feature flags that this fixture is responsible for."""
rule_source = self.makeRuleSource(self.makeNewRules())
original_controller = get_relevant_feature_controller()
def scope_lookup(scope_name):
request = get_current_browser_request()
return ScopesFromRequest(request).lookup(scope_name)
if self.override_scope_lookup:
scope_lookup = self.override_scope_lookup
install_feature_controller(FeatureController(scope_lookup,
rule_source))
self.addCleanup(install_feature_controller, original_controller)
def _install_and_reschedule(controller, script_name):
install_feature_controller(controller)
refresh = getFeatureFlag('twisted.flags.refresh') or 60.0
try:
refresh = float(refresh)
except ValueError:
log.msg("Invalid value {0!r} for twisted.flags.refresh".format(
refresh))
refresh = 60.0
global _last_refresh
if refresh != _last_refresh:
if _last_refresh is not None:
log.msg("twisted.flags.refresh changed to {0}".format(refresh))
_last_refresh = refresh
reactor.callLater(refresh, update, script_name)
def setUp(self):
"""Set the feature flags that this fixture is responsible for."""
super(FeatureFixture, self).setUp()
rule_source = StormFeatureRuleSource()
self.addCleanup(
rule_source.setAllRules, rule_source.getAllRulesAsTuples())
rule_source.setAllRules(self.makeNewRules())
original_controller = get_relevant_feature_controller()
def scope_lookup(scope_name):
request = get_current_browser_request()
return ScopesFromRequest(request).lookup(scope_name)
if self.override_scope_lookup:
scope_lookup = self.override_scope_lookup
install_feature_controller(
FeatureController(scope_lookup, rule_source))
self.addCleanup(install_feature_controller, original_controller)
def __init__(self, context, request):
super(SystemErrorView, self).__init__(context, request)
self.request.response.removeAllNotifications()
if self.response_code is not None:
self.request.response.setStatus(self.response_code)
if getattr(self.request, 'oopsid') is not None:
self.request.response.addHeader('X-Lazr-OopsId',
self.request.oopsid)
# Need to neuter the feature flags on error output. The base template
# checks for a feature flag, but they depend on db access which might
# not have been setup yet.
request.features = NullFeatureController()
features.install_feature_controller(request.features)
self.computeDebugOutput()
if config.canonical.show_tracebacks:
self.show_tracebacks = True
if lp.layers.DebugLayer.providedBy(self.request):
self.debugging = True
self.specialuser = getUtility(ILaunchBag).developer
def __init__(self, context, request):
super(SystemErrorView, self).__init__(context, request)
self.request.response.removeAllNotifications()
if self.response_code is not None:
self.request.response.setStatus(self.response_code)
if getattr(self.request, 'oopsid') is not None:
self.request.response.addHeader(
'X-Lazr-OopsId', self.request.oopsid)
# Need to neuter the feature flags on error output. The base template
# checks for a feature flag, but they depend on db access which might
# not have been setup yet.
request.features = NullFeatureController()
features.install_feature_controller(request.features)
self.computeDebugOutput()
if config.canonical.show_tracebacks:
self.show_tracebacks = True
if lp.layers.DebugLayer.providedBy(self.request):
self.debugging = True
self.specialuser = getUtility(ILaunchBag).developer
def run(self, use_web_security=False, isolation=None):
"""Actually run the script, executing zcml and initZopeless."""
if isolation is None:
isolation = 'read_committed'
self._init_zca(use_web_security=use_web_security)
self._init_db(isolation=isolation)
# XXX wgrant 2011-09-24 bug=29744: initZopeless used to do this.
# Should be called directly by scripts that actually need it.
set_immediate_mail_delivery(True)
date_started = datetime.datetime.now(UTC)
profiler = None
if self.options.profile:
profiler = Profile()
original_feature_controller = get_relevant_feature_controller()
install_feature_controller(make_script_feature_controller(self.name))
try:
if profiler:
profiler.runcall(self.main)
else:
self.main()
except LaunchpadScriptFailure as e:
self.logger.error(str(e))
sys.exit(e.exit_status)
except SilentLaunchpadScriptFailure as e:
sys.exit(e.exit_status)
else:
date_completed = datetime.datetime.now(UTC)
self.record_activity(date_started, date_completed)
finally:
install_feature_controller(original_feature_controller)
if profiler:
profiler.dump_stats(self.options.profile)
def run(self, use_web_security=False, isolation=None):
"""Actually run the script, executing zcml and initZopeless."""
if isolation is None:
isolation = 'read_committed'
self._init_zca(use_web_security=use_web_security)
self._init_db(isolation=isolation)
# XXX wgrant 2011-09-24 bug=29744: initZopeless used to do this.
# Should be called directly by scripts that actually need it.
set_immediate_mail_delivery(True)
date_started = datetime.datetime.now(UTC)
profiler = None
if self.options.profile:
profiler = Profile()
original_feature_controller = get_relevant_feature_controller()
install_feature_controller(make_script_feature_controller(self.name))
try:
if profiler:
profiler.runcall(self.main)
else:
self.main()
except LaunchpadScriptFailure as e:
self.logger.error(str(e))
sys.exit(e.exit_status)
except SilentLaunchpadScriptFailure as e:
sys.exit(e.exit_status)
else:
date_completed = datetime.datetime.now(UTC)
self.record_activity(date_started, date_completed)
finally:
install_feature_controller(original_feature_controller)
if profiler:
profiler.dump_stats(self.options.profile)
def installFeatureController(self, feature_controller):
old_features = features.get_relevant_feature_controller()
features.install_feature_controller(feature_controller)
self.addCleanup(features.install_feature_controller, old_features)
def installFeatureController(self, feature_controller):
old_features = features.get_relevant_feature_controller()
features.install_feature_controller(feature_controller)
self.addCleanup(
features.install_feature_controller, old_features)
def end_request(event):
"""Done with this FeatureController."""
install_feature_controller(None)
event.request.features = None
def start_request(event):
"""Register FeatureController."""
event.request.features = FeatureController(
ScopesFromRequest(event.request).lookup,
StormFeatureRuleSource())
install_feature_controller(event.request.features)
def tearDown(self):
install_feature_controller(self.original_controller)
super(TestScriptFeatureController, self).tearDown()
def test_threadGetFlagNoContext(self):
# If there is no context, please don't crash. workaround for the root
# cause in bug 631884.
install_feature_controller(None)
self.assertEqual(None, getFeatureFlag('ui.icing'))
def test_script_restores_feature_controller(self):
previous_controller = NullFeatureController()
install_feature_controller(previous_controller)
FakeScript(name="mongo").run()
self.assertEqual(
previous_controller, get_relevant_feature_controller())
def end_request(event):
"""Done with this FeatureController."""
install_feature_controller(None)
event.request.features = None
def start_request(event):
"""Register FeatureController."""
event.request.features = FeatureController(
ScopesFromRequest(event.request).lookup, StormFeatureRuleSource())
install_feature_controller(event.request.features)
def test_threadGetFlagNoContext(self):
# If there is no context, please don't crash. workaround for the root
# cause in bug 631884.
install_feature_controller(None)
self.assertEqual(None, getFeatureFlag("ui.icing"))