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Convert directory handler to async/await (#7727)

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Patrick Cloke 2020-06-22 07:18:00 -04:00 committed by GitHub
parent 91e886d615
commit e060bf4462
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3 changed files with 33 additions and 40 deletions
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1
changelog.d/7727.misc Normal file
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@ -0,0 +1 @@
Convert directory handler to async/await.

68
synapse/handlers/directory.py
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@ -17,8 +17,6 @@ import logging
import string
from typing import Iterable, List, Optional
from twisted.internet import defer
from synapse.api.constants import MAX_ALIAS_LENGTH, EventTypes
from synapse.api.errors import (
AuthError,
@ -55,8 +53,7 @@ class DirectoryHandler(BaseHandler):
self.spam_checker = hs.get_spam_checker()
@defer.inlineCallbacks
def _create_association(
async def _create_association(
self,
room_alias: RoomAlias,
room_id: str,
@ -76,13 +73,13 @@ class DirectoryHandler(BaseHandler):
# TODO(erikj): Add transactions.
# TODO(erikj): Check if there is a current association.
if not servers:
users = yield self.state.get_current_users_in_room(room_id)
users = await self.state.get_current_users_in_room(room_id)
servers = {get_domain_from_id(u) for u in users}
if not servers:
raise SynapseError(400, "Failed to get server list")
yield self.store.create_room_alias_association(
await self.store.create_room_alias_association(
room_alias, room_id, servers, creator=creator
)
@ -93,7 +90,7 @@ class DirectoryHandler(BaseHandler):
room_id: str,
servers: Optional[List[str]] = None,
check_membership: bool = True,
):
) -> None:
"""Attempt to create a new alias
Args:
@ -103,9 +100,6 @@ class DirectoryHandler(BaseHandler):
servers: Iterable of servers that others servers should try and join via
check_membership: Whether to check if the user is in the room
before the alias can be set (if the server's config requires it).
Returns:
Deferred
"""
user_id = requester.user.to_string()
@ -148,7 +142,7 @@ class DirectoryHandler(BaseHandler):
# per alias creation rule?
raise SynapseError(403, "Not allowed to create alias")
can_create = await self.can_modify_alias(room_alias, user_id=user_id)
can_create = self.can_modify_alias(room_alias, user_id=user_id)
if not can_create:
raise AuthError(
400,
@ -158,7 +152,9 @@ class DirectoryHandler(BaseHandler):
await self._create_association(room_alias, room_id, servers, creator=user_id)
async def delete_association(self, requester: Requester, room_alias: RoomAlias):
async def delete_association(
self, requester: Requester, room_alias: RoomAlias
) -> str:
"""Remove an alias from the directory
(this is only meant for human users; AS users should call
@ -169,7 +165,7 @@ class DirectoryHandler(BaseHandler):
room_alias
Returns:
Deferred[unicode]: room id that the alias used to point to
room id that the alias used to point to
Raises:
NotFoundError: if the alias doesn't exist
@ -191,7 +187,7 @@ class DirectoryHandler(BaseHandler):
if not can_delete:
raise AuthError(403, "You don't have permission to delete the alias.")
can_delete = await self.can_modify_alias(room_alias, user_id=user_id)
can_delete = self.can_modify_alias(room_alias, user_id=user_id)
if not can_delete:
raise SynapseError(
400,
@ -208,8 +204,7 @@ class DirectoryHandler(BaseHandler):
return room_id
@defer.inlineCallbacks
def delete_appservice_association(
async def delete_appservice_association(
self, service: ApplicationService, room_alias: RoomAlias
):
if not service.is_interested_in_alias(room_alias.to_string()):
@ -218,29 +213,27 @@ class DirectoryHandler(BaseHandler):
"This application service has not reserved this kind of alias",
errcode=Codes.EXCLUSIVE,
)
yield self._delete_association(room_alias)
await self._delete_association(room_alias)
@defer.inlineCallbacks
def _delete_association(self, room_alias: RoomAlias):
async def _delete_association(self, room_alias: RoomAlias):
if not self.hs.is_mine(room_alias):
raise SynapseError(400, "Room alias must be local")
room_id = yield self.store.delete_room_alias(room_alias)
room_id = await self.store.delete_room_alias(room_alias)
return room_id
@defer.inlineCallbacks
def get_association(self, room_alias: RoomAlias):
async def get_association(self, room_alias: RoomAlias):
room_id = None
if self.hs.is_mine(room_alias):
result = yield self.get_association_from_room_alias(room_alias)
result = await self.get_association_from_room_alias(room_alias)
if result:
room_id = result.room_id
servers = result.servers
else:
try:
result = yield self.federation.make_query(
result = await self.federation.make_query(
destination=room_alias.domain,
query_type="directory",
args={"room_alias": room_alias.to_string()},
@ -265,7 +258,7 @@ class DirectoryHandler(BaseHandler):
Codes.NOT_FOUND,
)
users = yield self.state.get_current_users_in_room(room_id)
users = await self.state.get_current_users_in_room(room_id)
extra_servers = {get_domain_from_id(u) for u in users}
servers = set(extra_servers) | set(servers)
@ -277,13 +270,12 @@ class DirectoryHandler(BaseHandler):
return {"room_id": room_id, "servers": servers}
@defer.inlineCallbacks
def on_directory_query(self, args):
async def on_directory_query(self, args):
room_alias = RoomAlias.from_string(args["room_alias"])
if not self.hs.is_mine(room_alias):
raise SynapseError(400, "Room Alias is not hosted on this homeserver")
result = yield self.get_association_from_room_alias(room_alias)
result = await self.get_association_from_room_alias(room_alias)
if result is not None:
return {"room_id": result.room_id, "servers": result.servers}
@ -344,16 +336,15 @@ class DirectoryHandler(BaseHandler):
ratelimit=False,
)
@defer.inlineCallbacks
def get_association_from_room_alias(self, room_alias: RoomAlias):
result = yield self.store.get_association_from_room_alias(room_alias)
async def get_association_from_room_alias(self, room_alias: RoomAlias):
result = await self.store.get_association_from_room_alias(room_alias)
if not result:
# Query AS to see if it exists
as_handler = self.appservice_handler
result = yield as_handler.query_room_alias_exists(room_alias)
result = await as_handler.query_room_alias_exists(room_alias)
return result
def can_modify_alias(self, alias: RoomAlias, user_id: Optional[str] = None):
def can_modify_alias(self, alias: RoomAlias, user_id: Optional[str] = None) -> bool:
# Any application service "interested" in an alias they are regexing on
# can modify the alias.
# Users can only modify the alias if ALL the interested services have
@ -366,12 +357,12 @@ class DirectoryHandler(BaseHandler):
for service in interested_services:
if user_id == service.sender:
# this user IS the app service so they can do whatever they like
return defer.succeed(True)
return True
elif service.is_exclusive_alias(alias.to_string()):
# another service has an exclusive lock on this alias.
return defer.succeed(False)
return False
# either no interested services, or no service with an exclusive lock
return defer.succeed(True)
return True
async def _user_can_delete_alias(self, alias: RoomAlias, user_id: str):
"""Determine whether a user can delete an alias.
@ -459,8 +450,7 @@ class DirectoryHandler(BaseHandler):
await self.store.set_room_is_public(room_id, making_public)
@defer.inlineCallbacks
def edit_published_appservice_room_list(
async def edit_published_appservice_room_list(
self, appservice_id: str, network_id: str, room_id: str, visibility: str
):
"""Add or remove a room from the appservice/network specific public
@ -475,7 +465,7 @@ class DirectoryHandler(BaseHandler):
if visibility not in ["public", "private"]:
raise SynapseError(400, "Invalid visibility setting")
yield self.store.set_room_is_public_appservice(
await self.store.set_room_is_public_appservice(
room_id, appservice_id, network_id, visibility == "public"
)

4
synapse/handlers/message.py
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@ -879,7 +879,9 @@ class EventCreationHandler(object):
"""
room_alias = RoomAlias.from_string(room_alias_str)
try:
mapping = yield directory_handler.get_association(room_alias)
mapping = yield defer.ensureDeferred(
directory_handler.get_association(room_alias)
)
except SynapseError as e:
# Turn M_NOT_FOUND errors into M_BAD_ALIAS errors.
if e.errcode == Codes.NOT_FOUND: