def on_feed_filter(self, feed, config):
entry_actions = {
'accept': feed.accept,
'reject': feed.reject,
'fail': feed.fail}
for entry in feed.entries:
# Make entry fields and other utilities available in the eval namespace
# We need our namespace to be an Entry instance for lazy loading to work
eval_locals = copy(entry)
eval_locals.update({'has_field': lambda f: f in entry,
'timedelta': datetime.timedelta,
'now': datetime.datetime.now()})
for item in config:
requirement, action = item.items()[0]
try:
# Restrict eval namespace to have no globals and locals only from eval_locals
passed = safer_eval(requirement, eval_locals)
except NameError, e:
# Extract the name that did not exist
missing_field = e.message.split('\'')[1]
log.debug('%s does not contain the field %s' % (entry['title'], missing_field))
except Exception, e:
log.error('Error occurred in if statement: %r' % e)
else:
if passed:
log.debug('%s matched requirement %s' % (entry['title'], requirement))
if isinstance(action, basestring):
# Simple entry action (accept, reject or fail) was specified as a string
entry_actions[action](entry, 'Matched requirement: %s' % requirement)
else:
# Other filters were specified to run on this entry
fake_feed = Feed(feed.manager, feed.name, feed.config)
fake_feed.session = feed.session
fake_feed.entries = [entry]
try:
for filter_name, filter_config in action.iteritems():
filter = get_plugin_by_name(filter_name)
method = filter.phase_handlers['filter']
method(fake_feed, filter_config)
except Exception:
raise
else:
# Populate changes from the fake feed to the real one
for e in fake_feed.accepted:
feed.accept(e, e.get('reason'))
for e in fake_feed.rejected:
feed.reject(e, e.get('reason'))
for e in fake_feed.failed:
feed.fail(e, e.get('reason'))
def handle_phase(feed, config):
if feed.name not in self.feed_phases:
log.debug('No config dict was generated for this feed.')
return
entry_actions = {
'accept': feed.accept,
'reject': feed.reject,
'fail': feed.fail}
for item in self.feed_phases[feed.name][phase]:
requirement, action = item.items()[0]
passed_entries = [e for e in feed.entries if self.check_condition(requirement, e)]
if passed_entries:
if isinstance(action, basestring):
# Simple entry action (accept, reject or fail) was specified as a string
for entry in passed_entries:
entry_actions[action](entry, 'Matched requirement: %s' % requirement)
else:
# Other plugins were specified to run on this entry
fake_feed = Feed(feed.manager, feed.name, feed.config)
fake_feed.session = feed.session
fake_feed.entries = passed_entries
fake_feed.accepted = [e for e in feed.accepted if self.check_condition(requirement, e)]
fake_feed.rejected = [e for e in feed.rejected if self.check_condition(requirement, e)]
try:
for plugin_name, plugin_config in action.iteritems():
plugin = get_plugin_by_name(plugin_name)
method = plugin.phase_handlers[phase]
method(fake_feed, plugin_config)
except Exception:
raise
else:
# Populate changes from the fake feed to the real one
for e in fake_feed.accepted:
feed.accept(e, e.get('reason'))
for e in fake_feed.rejected:
feed.reject(e, e.get('reason'))
for e in fake_feed.failed:
feed.fail(e, e.get('reason'))
feed.purge()
