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

Browse source 
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")