Stabilize support for MSC3873: disambuguated event push keys. (#15190)

This removes the experimental configuration option and
always escapes the push rule condition keys.

Also escapes any (experimental) push rule condition keys
in the base rules which contain dot in a field name.
pull/15223/head
Patrick Cloke 2023-03-07 11:27:57 -05:00 committed by GitHub
parent 47bc84dd53
commit 20ed8c926b
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GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 15 additions and 45 deletions

1
changelog.d/15190.bugfix Normal file
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@ -0,0 +1 @@
Implement [MSC3873](https://github.com/matrix-org/matrix-spec-proposals/pull/3873) to fix a long-standing bug where properties with dots were handled ambiguously in push rules.

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@ -71,7 +71,7 @@ pub const BASE_APPEND_OVERRIDE_RULES: &[PushRule] = &[
priority_class: 5,
conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch(
EventMatchCondition {
key: Cow::Borrowed("content.m.relates_to.rel_type"),
key: Cow::Borrowed("content.m\\.relates_to.rel_type"),
pattern: Cow::Borrowed("m.replace"),
},
))]),
@ -146,7 +146,7 @@ pub const BASE_APPEND_OVERRIDE_RULES: &[PushRule] = &[
priority_class: 5,
conditions: Cow::Borrowed(&[Condition::Known(
KnownCondition::ExactEventPropertyContainsType(EventPropertyIsTypeCondition {
key: Cow::Borrowed("content.org.matrix.msc3952.mentions.user_ids"),
key: Cow::Borrowed("content.org\\.matrix\\.msc3952\\.mentions.user_ids"),
value_type: Cow::Borrowed(&EventMatchPatternType::UserId),
}),
)]),
@ -167,7 +167,7 @@ pub const BASE_APPEND_OVERRIDE_RULES: &[PushRule] = &[
priority_class: 5,
conditions: Cow::Borrowed(&[
Condition::Known(KnownCondition::EventPropertyIs(EventPropertyIsCondition {
key: Cow::Borrowed("content.org.matrix.msc3952.mentions.room"),
key: Cow::Borrowed("content.org\\.matrix\\.msc3952\\.mentions.room"),
value: Cow::Borrowed(&SimpleJsonValue::Bool(true)),
})),
Condition::Known(KnownCondition::SenderNotificationPermission {

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@ -166,11 +166,6 @@ class ExperimentalConfig(Config):
# MSC3391: Removing account data.
self.msc3391_enabled = experimental.get("msc3391_enabled", False)
# MSC3873: Disambiguate event_match keys.
self.msc3873_escape_event_match_key = experimental.get(
"msc3873_escape_event_match_key", False
)
# MSC3952: Intentional mentions, this depends on MSC3966.
self.msc3952_intentional_mentions = experimental.get(
"msc3952_intentional_mentions", False
@ -181,10 +176,5 @@ class ExperimentalConfig(Config):
"msc3958_supress_edit_notifs", False
)
# MSC3966: exact_event_property_contains push rule condition.
self.msc3966_exact_event_property_contains = experimental.get(
"msc3966_exact_event_property_contains", False
)
# MSC3967: Do not require UIA when first uploading cross signing keys
self.msc3967_enabled = experimental.get("msc3967_enabled", False)

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@ -273,10 +273,7 @@ class BulkPushRuleEvaluator:
related_event_id, allow_none=True
)
if related_event is not None:
related_events[relation_type] = _flatten_dict(
related_event,
msc3873_escape_event_match_key=self.hs.config.experimental.msc3873_escape_event_match_key,
)
related_events[relation_type] = _flatten_dict(related_event)
reply_event_id = (
event.content.get("m.relates_to", {})
@ -291,10 +288,7 @@ class BulkPushRuleEvaluator:
)
if related_event is not None:
related_events["m.in_reply_to"] = _flatten_dict(
related_event,
msc3873_escape_event_match_key=self.hs.config.experimental.msc3873_escape_event_match_key,
)
related_events["m.in_reply_to"] = _flatten_dict(related_event)
# indicate that this is from a fallback relation.
if relation_type == "m.thread" and event.content.get(
@ -401,10 +395,7 @@ class BulkPushRuleEvaluator:
)
evaluator = PushRuleEvaluator(
_flatten_dict(
event,
msc3873_escape_event_match_key=self.hs.config.experimental.msc3873_escape_event_match_key,
),
_flatten_dict(event),
has_mentions,
room_member_count,
sender_power_level,
@ -494,8 +485,6 @@ def _flatten_dict(
d: Union[EventBase, Mapping[str, Any]],
prefix: Optional[List[str]] = None,
result: Optional[Dict[str, JsonValue]] = None,
*,
msc3873_escape_event_match_key: bool = False,
) -> Dict[str, JsonValue]:
"""
Given a JSON dictionary (or event) which might contain sub dictionaries,
@ -524,7 +513,6 @@ def _flatten_dict(
if result is None:
result = {}
for key, value in d.items():
if msc3873_escape_event_match_key:
# Escape periods in the key with a backslash (and backslashes with an
# extra backslash). This is since a period is used as a separator between
# nested fields.
@ -536,12 +524,7 @@ def _flatten_dict(
result[".".join(prefix + [key])] = [v for v in value if _is_simple_value(v)]
elif isinstance(value, Mapping):
# do not set `room_version` due to recursion considerations below
_flatten_dict(
value,
prefix=(prefix + [key]),
result=result,
msc3873_escape_event_match_key=msc3873_escape_event_match_key,
)
_flatten_dict(value, prefix=(prefix + [key]), result=result)
# `room_version` should only ever be set when looking at the top level of an event
if (

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@ -51,11 +51,7 @@ class FlattenDictTestCase(unittest.TestCase):
# If a field has a dot in it, escape it.
input = {"m.foo": {"b\\ar": "abc"}}
self.assertEqual({"m.foo.b\\ar": "abc"}, _flatten_dict(input))
self.assertEqual(
{"m\\.foo.b\\\\ar": "abc"},
_flatten_dict(input, msc3873_escape_event_match_key=True),
)
self.assertEqual({"m\\.foo.b\\\\ar": "abc"}, _flatten_dict(input))
def test_non_string(self) -> None:
"""String, booleans, ints, nulls and list of those should be kept while other items are dropped."""
@ -125,7 +121,7 @@ class FlattenDictTestCase(unittest.TestCase):
"room_id": "!test:test",
"sender": "@alice:test",
"type": "m.room.message",
"content.org.matrix.msc1767.markup": [],
"content.org\\.matrix\\.msc1767\\.markup": [],
}
self.assertEqual(expected, _flatten_dict(event))
@ -137,7 +133,7 @@ class FlattenDictTestCase(unittest.TestCase):
"room_id": "!test:test",
"sender": "@alice:test",
"type": "m.room.message",
"content.org.matrix.msc1767.markup": [],
"content.org\\.matrix\\.msc1767\\.markup": [],
}
self.assertEqual(expected, _flatten_dict(event))