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Support filtering the /messages API by relation type (MSC3874). (#14148)

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Gated behind an experimental configuration flag.
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Patrick Cloke 2022-10-17 11:32:11 -04:00 • committed by GitHub
parent 6b24235142
commit 4283bd1cf9
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9 changed files with 212 additions and 177 deletions
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synapse/api/filtering.py
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@ -36,7 +36,7 @@ from jsonschema import FormatChecker
from synapse.api.constants import EduTypes, EventContentFields
from synapse.api.errors import SynapseError
from synapse.api.presence import UserPresenceState
from synapse.events import EventBase
from synapse.events import EventBase, relation_from_event
from synapse.types import JsonDict, RoomID, UserID
if TYPE_CHECKING:
@ -53,6 +53,12 @@ FILTER_SCHEMA = {
# check types are valid event types
"types": {"type": "array", "items": {"type": "string"}},
"not_types": {"type": "array", "items": {"type": "string"}},
# MSC3874, filtering /messages.
"org.matrix.msc3874.rel_types": {"type": "array", "items": {"type": "string"}},
"org.matrix.msc3874.not_rel_types": {
"type": "array",
"items": {"type": "string"},
},
},
}
@ -334,8 +340,15 @@ class Filter:
self.labels = filter_json.get("org.matrix.labels", None)
self.not_labels = filter_json.get("org.matrix.not_labels", [])
self.related_by_senders = self.filter_json.get("related_by_senders", None)
self.related_by_rel_types = self.filter_json.get("related_by_rel_types", None)
self.related_by_senders = filter_json.get("related_by_senders", None)
self.related_by_rel_types = filter_json.get("related_by_rel_types", None)
# For compatibility with _check_fields.
self.rel_types = None
self.not_rel_types = []
if hs.config.experimental.msc3874_enabled:
self.rel_types = filter_json.get("org.matrix.msc3874.rel_types", None)
self.not_rel_types = filter_json.get("org.matrix.msc3874.not_rel_types", [])
def filters_all_types(self) -> bool:
return "*" in self.not_types
@ -386,11 +399,19 @@ class Filter:
# check if there is a string url field in the content for filtering purposes
labels = content.get(EventContentFields.LABELS, [])
# Check if the event has a relation.
rel_type = None
if isinstance(event, EventBase):
relation = relation_from_event(event)
if relation:
rel_type = relation.rel_type
field_matchers = {
"rooms": lambda v: room_id == v,
"senders": lambda v: sender == v,
"types": lambda v: _matches_wildcard(ev_type, v),
"labels": lambda v: v in labels,
"rel_types": lambda v: rel_type == v,
}
result = self._check_fields(field_matchers)