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Refactoring before implementing the updated spaces summary. (#10527)

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This should have no user-visible changes, but refactors some pieces of
the SpaceSummaryHandler before adding support for the updated
MSC2946.
This commit is contained in:
Patrick Cloke 2021-08-05 08:39:17 -04:00 committed by GitHub
parent a8a27b2b8b
commit 3b354faad0
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4 changed files with 198 additions and 136 deletions
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1
changelog.d/10527.misc Normal file
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@ -0,0 +1 @@
Prepare for the new spaces summary endpoint (updates to [MSC2946](https://github.com/matrix-org/matrix-doc/pull/2946)).

23
synapse/federation/federation_client.py
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@ -1290,7 +1290,7 @@ class FederationClient(FederationBase):
)
@attr.s(frozen=True, slots=True)
@attr.s(frozen=True, slots=True, auto_attribs=True)
class FederationSpaceSummaryEventResult:
"""Represents a single event in the result of a successful get_space_summary call.
@ -1299,12 +1299,13 @@ class FederationSpaceSummaryEventResult:
object attributes.
"""
event_type = attr.ib(type=str)
state_key = attr.ib(type=str)
via = attr.ib(type=Sequence[str])
event_type: str
room_id: str
state_key: str
via: Sequence[str]
# the raw data, including the above keys
data = attr.ib(type=JsonDict)
data: JsonDict
@classmethod
def from_json_dict(cls, d: JsonDict) -> "FederationSpaceSummaryEventResult":
@ -1321,6 +1322,10 @@ class FederationSpaceSummaryEventResult:
if not isinstance(event_type, str):
raise ValueError("Invalid event: 'event_type' must be a str")
room_id = d.get("room_id")
if not isinstance(room_id, str):
raise ValueError("Invalid event: 'room_id' must be a str")
state_key = d.get("state_key")
if not isinstance(state_key, str):
raise ValueError("Invalid event: 'state_key' must be a str")
@ -1335,15 +1340,15 @@ class FederationSpaceSummaryEventResult:
if any(not isinstance(v, str) for v in via):
raise ValueError("Invalid event: 'via' must be a list of strings")
return cls(event_type, state_key, via, d)
return cls(event_type, room_id, state_key, via, d)
@attr.s(frozen=True, slots=True)
@attr.s(frozen=True, slots=True, auto_attribs=True)
class FederationSpaceSummaryResult:
"""Represents the data returned by a successful get_space_summary call."""
rooms = attr.ib(type=Sequence[JsonDict])
events = attr.ib(type=Sequence[FederationSpaceSummaryEventResult])
rooms: Sequence[JsonDict]
events: Sequence[FederationSpaceSummaryEventResult]
@classmethod
def from_json_dict(cls, d: JsonDict) -> "FederationSpaceSummaryResult":

121
synapse/handlers/space_summary.py
View File

@ -16,7 +16,17 @@ import itertools
import logging
import re
from collections import deque
from typing import TYPE_CHECKING, Iterable, List, Optional, Sequence, Set, Tuple
from typing import (
TYPE_CHECKING,
Collection,
Dict,
Iterable,
List,
Optional,
Sequence,
Set,
Tuple,
)
import attr
@ -116,20 +126,22 @@ class SpaceSummaryHandler:
max_children = max_rooms_per_space if processed_rooms else None
if is_in_room:
room, events = await self._summarize_local_room(
room_entry = await self._summarize_local_room(
requester, None, room_id, suggested_only, max_children
)
events: Collection[JsonDict] = []
if room_entry:
rooms_result.append(room_entry.room)
events = room_entry.children
logger.debug(
"Query of local room %s returned events %s",
room_id,
["%s->%s" % (ev["room_id"], ev["state_key"]) for ev in events],
)
if room:
rooms_result.append(room)
else:
fed_rooms, fed_events = await self._summarize_remote_room(
fed_rooms = await self._summarize_remote_room(
queue_entry,
suggested_only,
max_children,
@ -141,12 +153,10 @@ class SpaceSummaryHandler:
# user is not permitted see.
#
# Filter the returned results to only what is accessible to the user.
room_ids = set()
events = []
for room in fed_rooms:
fed_room_id = room.get("room_id")
if not fed_room_id or not isinstance(fed_room_id, str):
continue
for room_entry in fed_rooms:
room = room_entry.room
fed_room_id = room_entry.room_id
# The room should only be included in the summary if:
# a. the user is in the room;
@ -189,21 +199,17 @@ class SpaceSummaryHandler:
# The user can see the room, include it!
if include_room:
rooms_result.append(room)
room_ids.add(fed_room_id)
events.extend(room_entry.children)
# All rooms returned don't need visiting again (even if the user
# didn't have access to them).
processed_rooms.add(fed_room_id)
for event in fed_events:
if event.get("room_id") in room_ids:
events.append(event)
logger.debug(
"Query of %s returned rooms %s, events %s",
room_id,
[room.get("room_id") for room in fed_rooms],
["%s->%s" % (ev["room_id"], ev["state_key"]) for ev in fed_events],
[room_entry.room.get("room_id") for room_entry in fed_rooms],
["%s->%s" % (ev["room_id"], ev["state_key"]) for ev in events],
)
# the room we queried may or may not have been returned, but don't process
@ -283,20 +289,20 @@ class SpaceSummaryHandler:
# already done this room
continue
logger.debug("Processing room %s", room_id)
room, events = await self._summarize_local_room(
room_entry = await self._summarize_local_room(
None, origin, room_id, suggested_only, max_rooms_per_space
)
processed_rooms.add(room_id)
if room:
rooms_result.append(room)
events_result.extend(events)
if room_entry:
rooms_result.append(room_entry.room)
events_result.extend(room_entry.children)
# add any children to the queue
room_queue.extend(edge_event["state_key"] for edge_event in events)
room_queue.extend(
edge_event["state_key"] for edge_event in room_entry.children
)
return {"rooms": rooms_result, "events": events_result}
@ -307,7 +313,7 @@ class SpaceSummaryHandler:
room_id: str,
suggested_only: bool,
max_children: Optional[int],
) -> Tuple[Optional[JsonDict], Sequence[JsonDict]]:
) -> Optional["_RoomEntry"]:
"""
Generate a room entry and a list of event entries for a given room.
@ -326,21 +332,16 @@ class SpaceSummaryHandler:
to a server-set limit.
Returns:
A tuple of:
The room information, if the room should be returned to the
user. None, otherwise.
An iterable of the sorted children events. This may be limited
to a maximum size or may include all children.
A room entry if the room should be returned. None, otherwise.
"""
if not await self._is_room_accessible(room_id, requester, origin):
return None, ()
return None
room_entry = await self._build_room_entry(room_id)
# If the room is not a space, return just the room information.
if room_entry.get("room_type") != RoomTypes.SPACE:
return room_entry, ()
return _RoomEntry(room_id, room_entry)
# Otherwise, look for child rooms/spaces.
child_events = await self._get_child_events(room_id)
@ -363,7 +364,7 @@ class SpaceSummaryHandler:
)
)
return room_entry, events_result
return _RoomEntry(room_id, room_entry, events_result)
async def _summarize_remote_room(
self,
@ -371,7 +372,7 @@ class SpaceSummaryHandler:
suggested_only: bool,
max_children: Optional[int],
exclude_rooms: Iterable[str],
) -> Tuple[Sequence[JsonDict], Sequence[JsonDict]]:
) -> Iterable["_RoomEntry"]:
"""
Request room entries and a list of event entries for a given room by querying a remote server.
@ -386,11 +387,7 @@ class SpaceSummaryHandler:
Rooms IDs which do not need to be summarized.
Returns:
A tuple of:
An iterable of rooms.
An iterable of the sorted children events. This may be limited
to a maximum size or may include all children.
An iterable of room entries.
"""
room_id = room.room_id
logger.info("Requesting summary for %s via %s", room_id, room.via)
@ -414,11 +411,30 @@ class SpaceSummaryHandler:
e,
exc_info=logger.isEnabledFor(logging.DEBUG),
)
return (), ()
return ()
return res.rooms, tuple(
ev.data for ev in res.events if ev.event_type == EventTypes.SpaceChild
# Group the events by their room.
children_by_room: Dict[str, List[JsonDict]] = {}
for ev in res.events:
if ev.event_type == EventTypes.SpaceChild:
children_by_room.setdefault(ev.room_id, []).append(ev.data)
# Generate the final results.
results = []
for fed_room in res.rooms:
fed_room_id = fed_room.get("room_id")
if not fed_room_id or not isinstance(fed_room_id, str):
continue
results.append(
_RoomEntry(
fed_room_id,
fed_room,
children_by_room.get(fed_room_id, []),
)
)
return results
async def _is_room_accessible(
self, room_id: str, requester: Optional[str], origin: Optional[str]
@ -606,10 +622,21 @@ class SpaceSummaryHandler:
return sorted(filter(_has_valid_via, events), key=_child_events_comparison_key)
@attr.s(frozen=True, slots=True)
@attr.s(frozen=True, slots=True, auto_attribs=True)
class _RoomQueueEntry:
room_id = attr.ib(type=str)
via = attr.ib(type=Sequence[str])
room_id: str
via: Sequence[str]
@attr.s(frozen=True, slots=True, auto_attribs=True)
class _RoomEntry:
room_id: str
# The room summary for this room.
room: JsonDict
# An iterable of the sorted, stripped children events for children of this room.
#
# This may not include all children.
children: Collection[JsonDict] = ()
def _has_valid_via(e: EventBase) -> bool:

75
tests/handlers/test_space_summary.py
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@ -26,7 +26,7 @@ from synapse.api.constants import (
from synapse.api.errors import AuthError
from synapse.api.room_versions import RoomVersions
from synapse.events import make_event_from_dict
from synapse.handlers.space_summary import _child_events_comparison_key
from synapse.handlers.space_summary import _child_events_comparison_key, _RoomEntry
from synapse.rest import admin
from synapse.rest.client.v1 import login, room
from synapse.server import HomeServer
@ -351,26 +351,30 @@ class SpaceSummaryTestCase(unittest.HomeserverTestCase):
# events before child events).
# Note that these entries are brief, but should contain enough info.
rooms = [
return [
_RoomEntry(
subspace,
{
"room_id": subspace,
"world_readable": True,
"room_type": RoomTypes.SPACE,
},
[
{
"room_id": subspace,
"state_key": subroom,
"content": {"via": [fed_hostname]},
}
],
),
_RoomEntry(
subroom,
{
"room_id": subroom,
"world_readable": True,
},
),
]
event_content = {"via": [fed_hostname]}
events = [
{
"room_id": subspace,
"state_key": subroom,
"content": event_content,
},
]
return rooms, events
# Add a room to the space which is on another server.
self._add_child(self.space, subspace, self.token)
@ -436,70 +440,95 @@ class SpaceSummaryTestCase(unittest.HomeserverTestCase):
):
# Note that these entries are brief, but should contain enough info.
rooms = [
_RoomEntry(
public_room,
{
"room_id": public_room,
"world_readable": False,
"join_rules": JoinRules.PUBLIC,
},
),
_RoomEntry(
knock_room,
{
"room_id": knock_room,
"world_readable": False,
"join_rules": JoinRules.KNOCK,
},
),
_RoomEntry(
not_invited_room,
{
"room_id": not_invited_room,
"world_readable": False,
"join_rules": JoinRules.INVITE,
},
),
_RoomEntry(
invited_room,
{
"room_id": invited_room,
"world_readable": False,
"join_rules": JoinRules.INVITE,
},
),
_RoomEntry(
restricted_room,
{
"room_id": restricted_room,
"world_readable": False,
"join_rules": JoinRules.MSC3083_RESTRICTED,
"allowed_spaces": [],
},
),
_RoomEntry(
restricted_accessible_room,
{
"room_id": restricted_accessible_room,
"world_readable": False,
"join_rules": JoinRules.MSC3083_RESTRICTED,
"allowed_spaces": [self.room],
},
),
_RoomEntry(
world_readable_room,
{
"room_id": world_readable_room,
"world_readable": True,
"join_rules": JoinRules.INVITE,
},
),
_RoomEntry(
joined_room,
{
"room_id": joined_room,
"world_readable": False,
"join_rules": JoinRules.INVITE,
},
]
# Place each room in the sub-space.
event_content = {"via": [fed_hostname]}
events = [
{
"room_id": subspace,
"state_key": room["room_id"],
"content": event_content,
}
for room in rooms
),
]
# Also include the subspace.
rooms.insert(
0,
_RoomEntry(
subspace,
{
"room_id": subspace,
"world_readable": True,
},
# Place each room in the sub-space.
[
{
"room_id": subspace,
"state_key": room.room_id,
"content": {"via": [fed_hostname]},
}
for room in rooms
],
),
)
return rooms, events
return rooms
# Add a room to the space which is on another server.
self._add_child(self.space, subspace, self.token)