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Remove remaining pieces of groups code. (#12966)

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* Remove an unused stream ID generator.
* Remove the now unused remote profile cache.
This commit is contained in:
Patrick Cloke 2022-06-06 13:20:05 -04:00 committed by GitHub
parent 44de53bb79
commit f7baffd8ec
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8 changed files with 6 additions and 209 deletions
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1
changelog.d/12966.removal Normal file
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@ -0,0 +1 @@
Remove support for the non-standard groups/communities feature from Synapse.

1
synapse/_scripts/synapse_port_db.py
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@ -182,6 +182,7 @@ IGNORED_TABLES = {
"groups",
"local_group_membership",
"local_group_updates",
"remote_profile_cache",
}

83
synapse/handlers/profile.py
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@ -23,14 +23,7 @@ from synapse.api.errors import (
StoreError,
SynapseError,
)
from synapse.metrics.background_process_metrics import wrap_as_background_process
from synapse.types import (
JsonDict,
Requester,
UserID,
create_requester,
get_domain_from_id,
)
from synapse.types import JsonDict, Requester, UserID, create_requester
from synapse.util.caches.descriptors import cached
from synapse.util.stringutils import parse_and_validate_mxc_uri
@ -50,9 +43,6 @@ class ProfileHandler:
delegate to master when necessary.
"""
PROFILE_UPDATE_MS = 60 * 1000
PROFILE_UPDATE_EVERY_MS = 24 * 60 * 60 * 1000
def __init__(self, hs: "HomeServer"):
self.store = hs.get_datastores().main
self.clock = hs.get_clock()
@ -73,11 +63,6 @@ class ProfileHandler:
self._third_party_rules = hs.get_third_party_event_rules()
if hs.config.worker.run_background_tasks:
self.clock.looping_call(
self._update_remote_profile_cache, self.PROFILE_UPDATE_MS
)
async def get_profile(self, user_id: str) -> JsonDict:
target_user = UserID.from_string(user_id)
@ -116,30 +101,6 @@ class ProfileHandler:
raise SynapseError(502, "Failed to fetch profile")
raise e.to_synapse_error()
async def get_profile_from_cache(self, user_id: str) -> JsonDict:
"""Get the profile information from our local cache. If the user is
ours then the profile information will always be correct. Otherwise,
it may be out of date/missing.
"""
target_user = UserID.from_string(user_id)
if self.hs.is_mine(target_user):
try:
displayname = await self.store.get_profile_displayname(
target_user.localpart
)
avatar_url = await self.store.get_profile_avatar_url(
target_user.localpart
)
except StoreError as e:
if e.code == 404:
raise SynapseError(404, "Profile was not found", Codes.NOT_FOUND)
raise
return {"displayname": displayname, "avatar_url": avatar_url}
else:
profile = await self.store.get_from_remote_profile_cache(user_id)
return profile or {}
async def get_displayname(self, target_user: UserID) -> Optional[str]:
if self.hs.is_mine(target_user):
try:
@ -509,45 +470,3 @@ class ProfileHandler:
# so we act as if we couldn't find the profile.
raise SynapseError(403, "Profile isn't available", Codes.FORBIDDEN)
raise
@wrap_as_background_process("Update remote profile")
async def _update_remote_profile_cache(self) -> None:
"""Called periodically to check profiles of remote users we haven't
checked in a while.
"""
entries = await self.store.get_remote_profile_cache_entries_that_expire(
last_checked=self.clock.time_msec() - self.PROFILE_UPDATE_EVERY_MS
)
for user_id, displayname, avatar_url in entries:
is_subscribed = await self.store.is_subscribed_remote_profile_for_user(
user_id
)
if not is_subscribed:
await self.store.maybe_delete_remote_profile_cache(user_id)
continue
try:
profile = await self.federation.make_query(
destination=get_domain_from_id(user_id),
query_type="profile",
args={"user_id": user_id},
ignore_backoff=True,
)
except Exception:
logger.exception("Failed to get avatar_url")
await self.store.update_remote_profile_cache(
user_id, displayname, avatar_url
)
continue
new_name = profile.get("displayname")
if not isinstance(new_name, str):
new_name = None
new_avatar = profile.get("avatar_url")
if not isinstance(new_avatar, str):
new_avatar = None
# We always hit update to update the last_check timestamp
await self.store.update_remote_profile_cache(user_id, new_name, new_avatar)

18
synapse/storage/databases/main/__init__.py
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@ -151,10 +151,6 @@ class DataStore(
],
)
self._group_updates_id_gen = StreamIdGenerator(
db_conn, "local_group_updates", "stream_id"
)
self._cache_id_gen: Optional[MultiWriterIdGenerator]
if isinstance(self.database_engine, PostgresEngine):
# We set the `writers` to an empty list here as we don't care about
@ -197,20 +193,6 @@ class DataStore(
prefilled_cache=curr_state_delta_prefill,
)
_group_updates_prefill, min_group_updates_id = self.db_pool.get_cache_dict(
db_conn,
"local_group_updates",
entity_column="user_id",
stream_column="stream_id",
max_value=self._group_updates_id_gen.get_current_token(),
limit=1000,
)
self._group_updates_stream_cache = StreamChangeCache(
"_group_updates_stream_cache",
min_group_updates_id,
prefilled_cache=_group_updates_prefill,
)
self._stream_order_on_start = self.get_room_max_stream_ordering()
self._min_stream_order_on_start = self.get_room_min_stream_ordering()

107
synapse/storage/databases/main/profile.py
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@ -11,11 +11,10 @@
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from typing import Any, Dict, List, Optional
from typing import Optional
from synapse.api.errors import StoreError
from synapse.storage._base import SQLBaseStore
from synapse.storage.database import LoggingTransaction
from synapse.storage.databases.main.roommember import ProfileInfo
@ -55,17 +54,6 @@ class ProfileWorkerStore(SQLBaseStore):
desc="get_profile_avatar_url",
)
async def get_from_remote_profile_cache(
self, user_id: str
) -> Optional[Dict[str, Any]]:
return await self.db_pool.simple_select_one(
table="remote_profile_cache",
keyvalues={"user_id": user_id},
retcols=("displayname", "avatar_url"),
allow_none=True,
desc="get_from_remote_profile_cache",
)
async def create_profile(self, user_localpart: str) -> None:
await self.db_pool.simple_insert(
table="profiles", values={"user_id": user_localpart}, desc="create_profile"
@ -91,97 +79,6 @@ class ProfileWorkerStore(SQLBaseStore):
desc="set_profile_avatar_url",
)
async def update_remote_profile_cache(
self, user_id: str, displayname: Optional[str], avatar_url: Optional[str]
) -> int:
return await self.db_pool.simple_update(
table="remote_profile_cache",
keyvalues={"user_id": user_id},
updatevalues={
"displayname": displayname,
"avatar_url": avatar_url,
"last_check": self._clock.time_msec(),
},
desc="update_remote_profile_cache",
)
async def maybe_delete_remote_profile_cache(self, user_id: str) -> None:
"""Check if we still care about the remote user's profile, and if we
don't then remove their profile from the cache
"""
subscribed = await self.is_subscribed_remote_profile_for_user(user_id)
if not subscribed:
await self.db_pool.simple_delete(
table="remote_profile_cache",
keyvalues={"user_id": user_id},
desc="delete_remote_profile_cache",
)
async def is_subscribed_remote_profile_for_user(self, user_id: str) -> bool:
"""Check whether we are interested in a remote user's profile."""
res: Optional[str] = await self.db_pool.simple_select_one_onecol(
table="group_users",
keyvalues={"user_id": user_id},
retcol="user_id",
allow_none=True,
desc="should_update_remote_profile_cache_for_user",
)
if res:
return True
res = await self.db_pool.simple_select_one_onecol(
table="group_invites",
keyvalues={"user_id": user_id},
retcol="user_id",
allow_none=True,
desc="should_update_remote_profile_cache_for_user",
)
if res:
return True
return False
async def get_remote_profile_cache_entries_that_expire(
self, last_checked: int
) -> List[Dict[str, str]]:
"""Get all users who haven't been checked since `last_checked`"""
def _get_remote_profile_cache_entries_that_expire_txn(
txn: LoggingTransaction,
) -> List[Dict[str, str]]:
sql = """
SELECT user_id, displayname, avatar_url
FROM remote_profile_cache
WHERE last_check < ?
"""
txn.execute(sql, (last_checked,))
return self.db_pool.cursor_to_dict(txn)
return await self.db_pool.runInteraction(
"get_remote_profile_cache_entries_that_expire",
_get_remote_profile_cache_entries_that_expire_txn,
)
class ProfileStore(ProfileWorkerStore):
async def add_remote_profile_cache(
self, user_id: str, displayname: str, avatar_url: str
) -> None:
"""Ensure we are caching the remote user's profiles.
This should only be called when `is_subscribed_remote_profile_for_user`
would return true for the user.
"""
await self.db_pool.simple_upsert(
table="remote_profile_cache",
keyvalues={"user_id": user_id},
values={
"displayname": displayname,
"avatar_url": avatar_url,
"last_check": self._clock.time_msec(),
},
desc="add_remote_profile_cache",
)
pass

2
synapse/storage/databases/main/purge_events.py
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@ -393,7 +393,6 @@ class PurgeEventsStore(StateGroupWorkerStore, CacheInvalidationWorkerStore):
"partial_state_events",
"events",
"federation_inbound_events_staging",
"group_rooms",
"local_current_membership",
"partial_state_rooms_servers",
"partial_state_rooms",
@ -413,7 +412,6 @@ class PurgeEventsStore(StateGroupWorkerStore, CacheInvalidationWorkerStore):
"e2e_room_keys",
"event_push_summary",
"pusher_throttle",
"group_summary_rooms",
"room_account_data",
"room_tags",
# "rooms" happens last, to keep the foreign keys in the other tables

1
synapse/storage/schema/__init__.py
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@ -70,6 +70,7 @@ Changes in SCHEMA_VERSION = 70:
Changes in SCHEMA_VERSION = 71:
- event_edges.room_id is no longer read from.
- Tables related to groups are no longer accessed.
"""

2
tests/rest/admin/test_room.py
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@ -2467,7 +2467,6 @@ PURGE_TABLES = [
"event_push_actions",
"event_search",
"events",
"group_rooms",
"receipts_graph",
"receipts_linearized",
"room_aliases",
@ -2484,7 +2483,6 @@ PURGE_TABLES = [
"e2e_room_keys",
"event_push_summary",
"pusher_throttle",
"group_summary_rooms",
"room_account_data",
"room_tags",
# "state_groups", # Current impl leaves orphaned state groups around.