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Make handle_new_client_event throws PartialStateConflictError (#14665)

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Then adapts calling code to retry when needed so it doesn't 500
to clients.

Signed-off-by: Mathieu Velten <mathieuv@matrix.org>
Co-authored-by: Sean Quah <8349537+squahtx@users.noreply.github.com>
This commit is contained in:
Mathieu Velten 2022-12-15 17:04:23 +01:00 • committed by GitHub
parent 046320b9b6
commit 54c012c5a8
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7 changed files with 366 additions and 245 deletions
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117
synapse/handlers/federation.py
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@ -1343,32 +1343,53 @@ class FederationHandler:
)
EventValidator().validate_builder(builder)
event, context = await self.event_creation_handler.create_new_client_event(
builder=builder
)
event, context = await self.add_display_name_to_third_party_invite(
room_version_obj, event_dict, event, context
)
# Try several times, it could fail with PartialStateConflictError
# in send_membership_event, cf comment in except block.
max_retries = 5
for i in range(max_retries):
try:
(
event,
context,
) = await self.event_creation_handler.create_new_client_event(
builder=builder
)
EventValidator().validate_new(event, self.config)
event, context = await self.add_display_name_to_third_party_invite(
room_version_obj, event_dict, event, context
)
# We need to tell the transaction queue to send this out, even
# though the sender isn't a local user.
event.internal_metadata.send_on_behalf_of = self.hs.hostname
EventValidator().validate_new(event, self.config)
try:
validate_event_for_room_version(event)
await self._event_auth_handler.check_auth_rules_from_context(event)
except AuthError as e:
logger.warning("Denying new third party invite %r because %s", event, e)
raise e
# We need to tell the transaction queue to send this out, even
# though the sender isn't a local user.
event.internal_metadata.send_on_behalf_of = self.hs.hostname
await self._check_signature(event, context)
try:
validate_event_for_room_version(event)
await self._event_auth_handler.check_auth_rules_from_context(
event
)
except AuthError as e:
logger.warning(
"Denying new third party invite %r because %s", event, e
)
raise e
# We retrieve the room member handler here as to not cause a cyclic dependency
member_handler = self.hs.get_room_member_handler()
await member_handler.send_membership_event(None, event, context)
await self._check_signature(event, context)
# We retrieve the room member handler here as to not cause a cyclic dependency
member_handler = self.hs.get_room_member_handler()
await member_handler.send_membership_event(None, event, context)
break
except PartialStateConflictError as e:
# Persisting couldn't happen because the room got un-partial stated
# in the meantime and context needs to be recomputed, so let's do so.
if i == max_retries - 1:
raise e
pass
else:
destinations = {x.split(":", 1)[-1] for x in (sender_user_id, room_id)}
@ -1400,28 +1421,46 @@ class FederationHandler:
room_version_obj, event_dict
)
event, context = await self.event_creation_handler.create_new_client_event(
builder=builder
)
event, context = await self.add_display_name_to_third_party_invite(
room_version_obj, event_dict, event, context
)
# Try several times, it could fail with PartialStateConflictError
# in send_membership_event, cf comment in except block.
max_retries = 5
for i in range(max_retries):
try:
(
event,
context,
) = await self.event_creation_handler.create_new_client_event(
builder=builder
)
event, context = await self.add_display_name_to_third_party_invite(
room_version_obj, event_dict, event, context
)
try:
validate_event_for_room_version(event)
await self._event_auth_handler.check_auth_rules_from_context(event)
except AuthError as e:
logger.warning("Denying third party invite %r because %s", event, e)
raise e
await self._check_signature(event, context)
try:
validate_event_for_room_version(event)
await self._event_auth_handler.check_auth_rules_from_context(event)
except AuthError as e:
logger.warning("Denying third party invite %r because %s", event, e)
raise e
await self._check_signature(event, context)
# We need to tell the transaction queue to send this out, even
# though the sender isn't a local user.
event.internal_metadata.send_on_behalf_of = get_domain_from_id(event.sender)
# We need to tell the transaction queue to send this out, even
# though the sender isn't a local user.
event.internal_metadata.send_on_behalf_of = get_domain_from_id(
event.sender
)
# We retrieve the room member handler here as to not cause a cyclic dependency
member_handler = self.hs.get_room_member_handler()
await member_handler.send_membership_event(None, event, context)
# We retrieve the room member handler here as to not cause a cyclic dependency
member_handler = self.hs.get_room_member_handler()
await member_handler.send_membership_event(None, event, context)
break
except PartialStateConflictError as e:
# Persisting couldn't happen because the room got un-partial stated
# in the meantime and context needs to be recomputed, so let's do so.
if i == max_retries - 1:
raise e
pass
async def add_display_name_to_third_party_invite(
self,