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Remove support for the unstable dir flag on relations. (#14106) 

From MSC3715, this was unused by clients (and there was no
way for clients to know it was supported).

Matrix 1.4 defines the stable field.
This commit is contained in:
Patrick Cloke 2022-10-07 12:38:46 -04:00 committed by GitHub
parent ab8047b4bf
commit e03d7c5fd0
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5 changed files with 31 additions and 57 deletions
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1
changelog.d/14106.removal Normal file
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@ -0,0 +1 @@
Remove the unstable identifier for [MSC3715](https://github.com/matrix-org/matrix-doc/pull/3715).

3
synapse/config/experimental.py
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@ -100,9 +100,6 @@ class ExperimentalConfig(Config):
# MSC3773: Thread notifications
self.msc3773_enabled: bool = experimental.get("msc3773_enabled", False)
# MSC3715: dir param on /relations.
self.msc3715_enabled: bool = experimental.get("msc3715_enabled", False)
# MSC3848: Introduce errcodes for specific event sending failures
self.msc3848_enabled: bool = experimental.get("msc3848_enabled", False)

33
synapse/handlers/relations.py
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@ -21,6 +21,7 @@ from synapse.api.errors import SynapseError
from synapse.events import EventBase, relation_from_event
from synapse.logging.opentracing import trace
from synapse.storage.databases.main.relations import _RelatedEvent
from synapse.streams.config import PaginationConfig
from synapse.types import JsonDict, Requester, StreamToken, UserID
from synapse.visibility import filter_events_for_client
@ -72,13 +73,10 @@ class RelationsHandler:
requester: Requester,
event_id: str,
room_id: str,
pagin_config: PaginationConfig,
include_original_event: bool,
relation_type: Optional[str] = None,
event_type: Optional[str] = None,
limit: int = 5,
direction: str = "b",
from_token: Optional[StreamToken] = None,
to_token: Optional[StreamToken] = None,
include_original_event: bool = False,
) -> JsonDict:
"""Get related events of a event, ordered by topological ordering.
@ -88,14 +86,10 @@ class RelationsHandler:
requester: The user requesting the relations.
event_id: Fetch events that relate to this event ID.
room_id: The room the event belongs to.
pagin_config: The pagination config rules to apply, if any.
include_original_event: Whether to include the parent event.
relation_type: Only fetch events with this relation type, if given.
event_type: Only fetch events with this event type, if given.
limit: Only fetch the most recent `limit` events.
direction: Whether to fetch the most recent first (`"b"`) or the
oldest first (`"f"`).
from_token: Fetch rows from the given token, or from the start if None.
to_token: Fetch rows up to the given token, or up to the end if None.
include_original_event: Whether to include the parent event.
Returns:
The pagination chunk.
@ -114,6 +108,9 @@ class RelationsHandler:
if event is None:
raise SynapseError(404, "Unknown parent event.")
# TODO Update pagination config to not allow None limits.
assert pagin_config.limit is not None
# Note that ignored users are not passed into get_relations_for_event
# below. Ignored users are handled in filter_events_for_client (and by
# not passing them in here we should get a better cache hit rate).
@ -123,10 +120,10 @@ class RelationsHandler:
room_id=room_id,
relation_type=relation_type,
event_type=event_type,
limit=limit,
direction=direction,
from_token=from_token,
to_token=to_token,
limit=pagin_config.limit,
direction=pagin_config.direction,
from_token=pagin_config.from_token,
to_token=pagin_config.to_token,
)
events = await self._main_store.get_events_as_list(
@ -162,8 +159,10 @@ class RelationsHandler:
if next_token:
return_value["next_batch"] = await next_token.to_string(self._main_store)
if from_token:
return_value["prev_batch"] = await from_token.to_string(self._main_store)
if pagin_config.from_token:
return_value["prev_batch"] = await pagin_config.from_token.to_string(
self._main_store
)
return return_value

45
synapse/rest/client/relations.py
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@ -16,10 +16,11 @@ import logging
from typing import TYPE_CHECKING, Optional, Tuple
from synapse.http.server import HttpServer
from synapse.http.servlet import RestServlet, parse_integer, parse_string
from synapse.http.servlet import RestServlet
from synapse.http.site import SynapseRequest
from synapse.rest.client._base import client_patterns
from synapse.types import JsonDict, StreamToken
from synapse.streams.config import PaginationConfig
from synapse.types import JsonDict
if TYPE_CHECKING:
from synapse.server import HomeServer
@ -41,9 +42,8 @@ class RelationPaginationServlet(RestServlet):
def __init__(self, hs: "HomeServer"):
super().__init__()
self.auth = hs.get_auth()
self.store = hs.get_datastores().main
self._store = hs.get_datastores().main
self._relations_handler = hs.get_relations_handler()
self._msc3715_enabled = hs.config.experimental.msc3715_enabled
async def on_GET(
self,
@ -55,49 +55,24 @@ class RelationPaginationServlet(RestServlet):
) -> Tuple[int, JsonDict]:
requester = await self.auth.get_user_by_req(request, allow_guest=True)
limit = parse_integer(request, "limit", default=5)
# Fetch the direction parameter, if provided.
#
# TODO Use PaginationConfig.from_request when the unstable parameter is
# no longer needed.
direction = parse_string(request, "dir", allowed_values=["f", "b"])
if direction is None:
if self._msc3715_enabled:
direction = parse_string(
request,
"org.matrix.msc3715.dir",
default="b",
allowed_values=["f", "b"],
)
else:
direction = "b"
from_token_str = parse_string(request, "from")
to_token_str = parse_string(request, "to")
# Return the relations
from_token = None
if from_token_str:
from_token = await StreamToken.from_string(self.store, from_token_str)
to_token = None
if to_token_str:
to_token = await StreamToken.from_string(self.store, to_token_str)
pagination_config = await PaginationConfig.from_request(
self._store, request, default_limit=5, default_dir="b"
)
# The unstable version of this API returns an extra field for client
# compatibility, see https://github.com/matrix-org/synapse/issues/12930.
assert request.path is not None
include_original_event = request.path.startswith(b"/_matrix/client/unstable/")
# Return the relations
result = await self._relations_handler.get_relations(
requester=requester,
event_id=parent_id,
room_id=room_id,
pagin_config=pagination_config,
include_original_event=include_original_event,
relation_type=relation_type,
event_type=event_type,
limit=limit,
direction=direction,
from_token=from_token,
to_token=to_token,
include_original_event=include_original_event,
)
return 200, result

6
synapse/streams/config.py
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@ -42,10 +42,12 @@ class PaginationConfig:
cls,
store: "DataStore",
request: SynapseRequest,
raise_invalid_params: bool = True,
default_limit: Optional[int] = None,
default_dir: str = "f",
) -> "PaginationConfig":
direction = parse_string(request, "dir", default="f", allowed_values=["f", "b"])
direction = parse_string(
request, "dir", default=default_dir, allowed_values=["f", "b"]
)
from_tok_str = parse_string(request, "from")
to_tok_str = parse_string(request, "to")