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factor out _update_context_for_auth_events

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This is duplicated, so let's factor it out before fixing it
This commit is contained in:
Richard van der Hoff 2017-11-07 16:43:00 +00:00
parent f5cf3638e9
commit 1ca4288135
1 changed files with 42 additions and 20 deletions
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62
synapse/handlers/federation.py
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@ -1706,6 +1706,17 @@ class FederationHandler(BaseHandler):
@defer.inlineCallbacks
@log_function
def do_auth(self, origin, event, context, auth_events):
"""
Args:
origin (str):
event (synapse.events.FrozenEvent):
context (synapse.events.snapshot.EventContext):
auth_events (dict[(str, str)->str]):
Returns:
defer.Deferred[None]
"""
# Check if we have all the auth events.
current_state = set(e.event_id for e in auth_events.values())
event_auth_events = set(e_id for e_id, _ in event.auth_events)
@ -1817,16 +1828,9 @@ class FederationHandler(BaseHandler):
current_state = set(e.event_id for e in auth_events.values())
different_auth = event_auth_events - current_state
context.current_state_ids = dict(context.current_state_ids)
context.current_state_ids.update({
k: a.event_id for k, a in auth_events.items()
if k != event_key
})
context.prev_state_ids = dict(context.prev_state_ids)
context.prev_state_ids.update({
k: a.event_id for k, a in auth_events.items()
})
context.state_group = self.store.get_next_state_group()
self._update_context_for_auth_events(
context, auth_events, event_key,
)
if different_auth and not event.internal_metadata.is_outlier():
logger.info("Different auth after resolution: %s", different_auth)
@ -1906,16 +1910,9 @@ class FederationHandler(BaseHandler):
# 4. Look at rejects and their proofs.
# TODO.
context.current_state_ids = dict(context.current_state_ids)
context.current_state_ids.update({
k: a.event_id for k, a in auth_events.items()
if k != event_key
})
context.prev_state_ids = dict(context.prev_state_ids)
context.prev_state_ids.update({
k: a.event_id for k, a in auth_events.items()
})
context.state_group = self.store.get_next_state_group()
self._update_context_for_auth_events(
context, auth_events, event_key,
)
try:
self.auth.check(event, auth_events=auth_events)
@ -1923,6 +1920,31 @@ class FederationHandler(BaseHandler):
logger.warn("Failed auth resolution for %r because %s", event, e)
raise e
def _update_context_for_auth_events(self, context, auth_events,
event_key):
"""Update the state_ids in an event context after auth event resolution
Args:
context (synapse.events.snapshot.EventContext): event context
to be updated
auth_events (dict[(str, str)->str]): Events to update in the event
context.
event_key ((str, str)): (type, state_key) for the current event.
this will not be included in the current_state in the context.
"""
context.current_state_ids = dict(context.current_state_ids)
context.current_state_ids.update({
k: a.event_id for k, a in auth_events.items()
if k != event_key
})
context.prev_state_ids = dict(context.prev_state_ids)
context.prev_state_ids.update({
k: a.event_id for k, a in auth_events.items()
})
context.state_group = self.store.get_next_state_group()
@defer.inlineCallbacks
def construct_auth_difference(self, local_auth, remote_auth):
""" Given a local and remote auth chain, find the differences. This