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Do not accept pattern_type from user input in push rules. (#15088)

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Internally the push rules module uses a `pattern_type` property for `event_match`
conditions (and `related_event_match`) to mark the condition as matching the
current user's Matrix ID or localpart.

This is leaky to the Client-Server API where a user can successfully set a condition
which provides `pattern_type` instead of `pattern` (note that there's no benefit to
doing this -- the user can just use their own Matrix ID or localpart instead). When
serializing back to the client the `pattern_type` property is converted into a proper
`pattern`.

The following changes are made to avoid this:

* Separate the `KnownCondition::EventMatch` enum value into `EventMatch`
  and `EventMatchType`, each with their own expected properties. (Note that a
  similar change is made for `RelatedEventMatch`.)
* Make it such that the `pattern_type` variants serialize to the same condition kind,
  but cannot be deserialized (since they're only provided by base rules).
* As a final tweak, convert `user_id` vs. `user_localpart` values into an enum.
This commit is contained in:
Patrick Cloke 2023-02-28 10:11:20 -05:00 committed by GitHub
parent 521026897c
commit e746f80b4f
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 244 additions and 186 deletions
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1
changelog.d/15088.bugfix Normal file
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@ -0,0 +1 @@
Fix a long-standing bug where Synapse handled an unspecced field on push rules.

9
rust/benches/evaluator.rs
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@ -60,8 +60,7 @@ fn bench_match_exact(b: &mut Bencher) {
let condition = Condition::Known(synapse::push::KnownCondition::EventMatch( let condition = Condition::Known(synapse::push::KnownCondition::EventMatch(
EventMatchCondition { EventMatchCondition {
key: "room_id".into(), key: "room_id".into(),
pattern: Some("!room:server".into()), pattern: "!room:server".into(),
pattern_type: None,
}, },
)); ));
@ -109,8 +108,7 @@ fn bench_match_word(b: &mut Bencher) {
let condition = Condition::Known(synapse::push::KnownCondition::EventMatch( let condition = Condition::Known(synapse::push::KnownCondition::EventMatch(
EventMatchCondition { EventMatchCondition {
key: "content.body".into(), key: "content.body".into(),
pattern: Some("test".into()), pattern: "test".into(),
pattern_type: None,
}, },
)); ));
@ -158,8 +156,7 @@ fn bench_match_word_miss(b: &mut Bencher) {
let condition = Condition::Known(synapse::push::KnownCondition::EventMatch( let condition = Condition::Known(synapse::push::KnownCondition::EventMatch(
EventMatchCondition { EventMatchCondition {
key: "content.body".into(), key: "content.body".into(),
pattern: Some("foobar".into()), pattern: "foobar".into(),
pattern_type: None,
}, },
)); ));

135
rust/src/push/base_rules.rs
View File

@ -21,13 +21,13 @@ use lazy_static::lazy_static;
use serde_json::Value; use serde_json::Value;
use super::KnownCondition; use super::KnownCondition;
use crate::push::Condition;
use crate::push::EventMatchCondition;
use crate::push::PushRule; use crate::push::PushRule;
use crate::push::RelatedEventMatchCondition; use crate::push::RelatedEventMatchTypeCondition;
use crate::push::SetTweak; use crate::push::SetTweak;
use crate::push::TweakValue; use crate::push::TweakValue;
use crate::push::{Action, ExactEventMatchCondition, SimpleJsonValue}; use crate::push::{Action, ExactEventMatchCondition, SimpleJsonValue};
use crate::push::{Condition, EventMatchTypeCondition};
use crate::push::{EventMatchCondition, EventMatchPatternType};
const HIGHLIGHT_ACTION: Action = Action::SetTweak(SetTweak { const HIGHLIGHT_ACTION: Action = Action::SetTweak(SetTweak {
set_tweak: Cow::Borrowed("highlight"), set_tweak: Cow::Borrowed("highlight"),
@ -72,8 +72,7 @@ pub const BASE_APPEND_OVERRIDE_RULES: &[PushRule] = &[
conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch( conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch(
EventMatchCondition { EventMatchCondition {
key: Cow::Borrowed("content.m.relates_to.rel_type"), key: Cow::Borrowed("content.m.relates_to.rel_type"),
pattern: Some(Cow::Borrowed("m.replace")), pattern: Cow::Borrowed("m.replace"),
pattern_type: None,
}, },
))]), ))]),
actions: Cow::Borrowed(&[]), actions: Cow::Borrowed(&[]),
@ -86,8 +85,7 @@ pub const BASE_APPEND_OVERRIDE_RULES: &[PushRule] = &[
conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch( conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch(
EventMatchCondition { EventMatchCondition {
key: Cow::Borrowed("content.msgtype"), key: Cow::Borrowed("content.msgtype"),
pattern: Some(Cow::Borrowed("m.notice")), pattern: Cow::Borrowed("m.notice"),
pattern_type: None,
}, },
))]), ))]),
actions: Cow::Borrowed(&[Action::DontNotify]), actions: Cow::Borrowed(&[Action::DontNotify]),
@ -100,18 +98,15 @@ pub const BASE_APPEND_OVERRIDE_RULES: &[PushRule] = &[
conditions: Cow::Borrowed(&[ conditions: Cow::Borrowed(&[
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
pattern: Some(Cow::Borrowed("m.room.member")), pattern: Cow::Borrowed("m.room.member"),
pattern_type: None,
})), })),
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("content.membership"), key: Cow::Borrowed("content.membership"),
pattern: Some(Cow::Borrowed("invite")), pattern: Cow::Borrowed("invite"),
pattern_type: None,
})), })),
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatchType(EventMatchTypeCondition {
key: Cow::Borrowed("state_key"), key: Cow::Borrowed("state_key"),
pattern: None, pattern_type: Cow::Borrowed(&EventMatchPatternType::UserId),
pattern_type: Some(Cow::Borrowed("user_id")),
})), })),
]), ]),
actions: Cow::Borrowed(&[Action::Notify, HIGHLIGHT_FALSE_ACTION, SOUND_ACTION]), actions: Cow::Borrowed(&[Action::Notify, HIGHLIGHT_FALSE_ACTION, SOUND_ACTION]),
@ -124,8 +119,7 @@ pub const BASE_APPEND_OVERRIDE_RULES: &[PushRule] = &[
conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch( conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch(
EventMatchCondition { EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
pattern: Some(Cow::Borrowed("m.room.member")), pattern: Cow::Borrowed("m.room.member"),
pattern_type: None,
}, },
))]), ))]),
actions: Cow::Borrowed(&[Action::DontNotify]), actions: Cow::Borrowed(&[Action::DontNotify]),
@ -135,11 +129,10 @@ pub const BASE_APPEND_OVERRIDE_RULES: &[PushRule] = &[
PushRule { PushRule {
rule_id: Cow::Borrowed("global/override/.im.nheko.msc3664.reply"), rule_id: Cow::Borrowed("global/override/.im.nheko.msc3664.reply"),
priority_class: 5, priority_class: 5,
conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::RelatedEventMatch( conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::RelatedEventMatchType(
RelatedEventMatchCondition { RelatedEventMatchTypeCondition {
key: Some(Cow::Borrowed("sender")), key: Cow::Borrowed("sender"),
pattern: None, pattern_type: Cow::Borrowed(&EventMatchPatternType::UserId),
pattern_type: Some(Cow::Borrowed("user_id")),
rel_type: Cow::Borrowed("m.in_reply_to"), rel_type: Cow::Borrowed("m.in_reply_to"),
include_fallbacks: None, include_fallbacks: None,
}, },
@ -189,8 +182,7 @@ pub const BASE_APPEND_OVERRIDE_RULES: &[PushRule] = &[
}), }),
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("content.body"), key: Cow::Borrowed("content.body"),
pattern: Some(Cow::Borrowed("@room")), pattern: Cow::Borrowed("@room"),
pattern_type: None,
})), })),
]), ]),
actions: Cow::Borrowed(&[Action::Notify, HIGHLIGHT_ACTION]), actions: Cow::Borrowed(&[Action::Notify, HIGHLIGHT_ACTION]),
@ -203,13 +195,11 @@ pub const BASE_APPEND_OVERRIDE_RULES: &[PushRule] = &[
conditions: Cow::Borrowed(&[ conditions: Cow::Borrowed(&[
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
pattern: Some(Cow::Borrowed("m.room.tombstone")), pattern: Cow::Borrowed("m.room.tombstone"),
pattern_type: None,
})), })),
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("state_key"), key: Cow::Borrowed("state_key"),
pattern: Some(Cow::Borrowed("")), pattern: Cow::Borrowed(""),
pattern_type: None,
})), })),
]), ]),
actions: Cow::Borrowed(&[Action::Notify, HIGHLIGHT_ACTION]), actions: Cow::Borrowed(&[Action::Notify, HIGHLIGHT_ACTION]),
@ -222,8 +212,7 @@ pub const BASE_APPEND_OVERRIDE_RULES: &[PushRule] = &[
conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch( conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch(
EventMatchCondition { EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
pattern: Some(Cow::Borrowed("m.reaction")), pattern: Cow::Borrowed("m.reaction"),
pattern_type: None,
}, },
))]), ))]),
actions: Cow::Borrowed(&[]), actions: Cow::Borrowed(&[]),
@ -236,13 +225,11 @@ pub const BASE_APPEND_OVERRIDE_RULES: &[PushRule] = &[
conditions: Cow::Borrowed(&[ conditions: Cow::Borrowed(&[
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
pattern: Some(Cow::Borrowed("m.room.server_acl")), pattern: Cow::Borrowed("m.room.server_acl"),
pattern_type: None,
})), })),
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("state_key"), key: Cow::Borrowed("state_key"),
pattern: Some(Cow::Borrowed("")), pattern: Cow::Borrowed(""),
pattern_type: None,
})), })),
]), ]),
actions: Cow::Borrowed(&[]), actions: Cow::Borrowed(&[]),
@ -255,8 +242,7 @@ pub const BASE_APPEND_OVERRIDE_RULES: &[PushRule] = &[
conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch( conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch(
EventMatchCondition { EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
pattern: Some(Cow::Borrowed("org.matrix.msc3381.poll.response")), pattern: Cow::Borrowed("org.matrix.msc3381.poll.response"),
pattern_type: None,
}, },
))]), ))]),
actions: Cow::Borrowed(&[]), actions: Cow::Borrowed(&[]),
@ -268,11 +254,10 @@ pub const BASE_APPEND_OVERRIDE_RULES: &[PushRule] = &[
pub const BASE_APPEND_CONTENT_RULES: &[PushRule] = &[PushRule { pub const BASE_APPEND_CONTENT_RULES: &[PushRule] = &[PushRule {
rule_id: Cow::Borrowed("global/content/.m.rule.contains_user_name"), rule_id: Cow::Borrowed("global/content/.m.rule.contains_user_name"),
priority_class: 4, priority_class: 4,
conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch( conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatchType(
EventMatchCondition { EventMatchTypeCondition {
key: Cow::Borrowed("content.body"), key: Cow::Borrowed("content.body"),
pattern: None, pattern_type: Cow::Borrowed(&EventMatchPatternType::UserLocalpart),
pattern_type: Some(Cow::Borrowed("user_localpart")),
}, },
))]), ))]),
actions: Cow::Borrowed(&[Action::Notify, HIGHLIGHT_ACTION, SOUND_ACTION]), actions: Cow::Borrowed(&[Action::Notify, HIGHLIGHT_ACTION, SOUND_ACTION]),
@ -287,8 +272,7 @@ pub const BASE_APPEND_UNDERRIDE_RULES: &[PushRule] = &[
conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch( conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch(
EventMatchCondition { EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
pattern: Some(Cow::Borrowed("m.call.invite")), pattern: Cow::Borrowed("m.call.invite"),
pattern_type: None,
}, },
))]), ))]),
actions: Cow::Borrowed(&[Action::Notify, RING_ACTION, HIGHLIGHT_FALSE_ACTION]), actions: Cow::Borrowed(&[Action::Notify, RING_ACTION, HIGHLIGHT_FALSE_ACTION]),
@ -301,8 +285,7 @@ pub const BASE_APPEND_UNDERRIDE_RULES: &[PushRule] = &[
conditions: Cow::Borrowed(&[ conditions: Cow::Borrowed(&[
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
pattern: Some(Cow::Borrowed("m.room.message")), pattern: Cow::Borrowed("m.room.message"),
pattern_type: None,
})), })),
Condition::Known(KnownCondition::RoomMemberCount { Condition::Known(KnownCondition::RoomMemberCount {
is: Some(Cow::Borrowed("2")), is: Some(Cow::Borrowed("2")),
@ -318,8 +301,7 @@ pub const BASE_APPEND_UNDERRIDE_RULES: &[PushRule] = &[
conditions: Cow::Borrowed(&[ conditions: Cow::Borrowed(&[
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
pattern: Some(Cow::Borrowed("m.room.encrypted")), pattern: Cow::Borrowed("m.room.encrypted"),
pattern_type: None,
})), })),
Condition::Known(KnownCondition::RoomMemberCount { Condition::Known(KnownCondition::RoomMemberCount {
is: Some(Cow::Borrowed("2")), is: Some(Cow::Borrowed("2")),
@ -338,8 +320,7 @@ pub const BASE_APPEND_UNDERRIDE_RULES: &[PushRule] = &[
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
// MSC3933: Type changed from template rule - see MSC. // MSC3933: Type changed from template rule - see MSC.
pattern: Some(Cow::Borrowed("org.matrix.msc1767.encrypted")), pattern: Cow::Borrowed("org.matrix.msc1767.encrypted"),
pattern_type: None,
})), })),
Condition::Known(KnownCondition::RoomMemberCount { Condition::Known(KnownCondition::RoomMemberCount {
is: Some(Cow::Borrowed("2")), is: Some(Cow::Borrowed("2")),
@ -363,8 +344,7 @@ pub const BASE_APPEND_UNDERRIDE_RULES: &[PushRule] = &[
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
// MSC3933: Type changed from template rule - see MSC. // MSC3933: Type changed from template rule - see MSC.
pattern: Some(Cow::Borrowed("org.matrix.msc1767.message")), pattern: Cow::Borrowed("org.matrix.msc1767.message"),
pattern_type: None,
})), })),
Condition::Known(KnownCondition::RoomMemberCount { Condition::Known(KnownCondition::RoomMemberCount {
is: Some(Cow::Borrowed("2")), is: Some(Cow::Borrowed("2")),
@ -388,8 +368,7 @@ pub const BASE_APPEND_UNDERRIDE_RULES: &[PushRule] = &[
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
// MSC3933: Type changed from template rule - see MSC. // MSC3933: Type changed from template rule - see MSC.
pattern: Some(Cow::Borrowed("org.matrix.msc1767.file")), pattern: Cow::Borrowed("org.matrix.msc1767.file"),
pattern_type: None,
})), })),
Condition::Known(KnownCondition::RoomMemberCount { Condition::Known(KnownCondition::RoomMemberCount {
is: Some(Cow::Borrowed("2")), is: Some(Cow::Borrowed("2")),
@ -413,8 +392,7 @@ pub const BASE_APPEND_UNDERRIDE_RULES: &[PushRule] = &[
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
// MSC3933: Type changed from template rule - see MSC. // MSC3933: Type changed from template rule - see MSC.
pattern: Some(Cow::Borrowed("org.matrix.msc1767.image")), pattern: Cow::Borrowed("org.matrix.msc1767.image"),
pattern_type: None,
})), })),
Condition::Known(KnownCondition::RoomMemberCount { Condition::Known(KnownCondition::RoomMemberCount {
is: Some(Cow::Borrowed("2")), is: Some(Cow::Borrowed("2")),
@ -438,8 +416,7 @@ pub const BASE_APPEND_UNDERRIDE_RULES: &[PushRule] = &[
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
// MSC3933: Type changed from template rule - see MSC. // MSC3933: Type changed from template rule - see MSC.
pattern: Some(Cow::Borrowed("org.matrix.msc1767.video")), pattern: Cow::Borrowed("org.matrix.msc1767.video"),
pattern_type: None,
})), })),
Condition::Known(KnownCondition::RoomMemberCount { Condition::Known(KnownCondition::RoomMemberCount {
is: Some(Cow::Borrowed("2")), is: Some(Cow::Borrowed("2")),
@ -463,8 +440,7 @@ pub const BASE_APPEND_UNDERRIDE_RULES: &[PushRule] = &[
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
// MSC3933: Type changed from template rule - see MSC. // MSC3933: Type changed from template rule - see MSC.
pattern: Some(Cow::Borrowed("org.matrix.msc1767.audio")), pattern: Cow::Borrowed("org.matrix.msc1767.audio"),
pattern_type: None,
})), })),
Condition::Known(KnownCondition::RoomMemberCount { Condition::Known(KnownCondition::RoomMemberCount {
is: Some(Cow::Borrowed("2")), is: Some(Cow::Borrowed("2")),
@ -485,8 +461,7 @@ pub const BASE_APPEND_UNDERRIDE_RULES: &[PushRule] = &[
conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch( conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch(
EventMatchCondition { EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
pattern: Some(Cow::Borrowed("m.room.message")), pattern: Cow::Borrowed("m.room.message"),
pattern_type: None,
}, },
))]), ))]),
actions: Cow::Borrowed(&[Action::Notify, HIGHLIGHT_FALSE_ACTION]), actions: Cow::Borrowed(&[Action::Notify, HIGHLIGHT_FALSE_ACTION]),
@ -499,8 +474,7 @@ pub const BASE_APPEND_UNDERRIDE_RULES: &[PushRule] = &[
conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch( conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch(
EventMatchCondition { EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
pattern: Some(Cow::Borrowed("m.room.encrypted")), pattern: Cow::Borrowed("m.room.encrypted"),
pattern_type: None,
}, },
))]), ))]),
actions: Cow::Borrowed(&[Action::Notify, HIGHLIGHT_FALSE_ACTION]), actions: Cow::Borrowed(&[Action::Notify, HIGHLIGHT_FALSE_ACTION]),
@ -514,8 +488,7 @@ pub const BASE_APPEND_UNDERRIDE_RULES: &[PushRule] = &[
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
// MSC3933: Type changed from template rule - see MSC. // MSC3933: Type changed from template rule - see MSC.
pattern: Some(Cow::Borrowed("m.encrypted")), pattern: Cow::Borrowed("m.encrypted"),
pattern_type: None,
})), })),
// MSC3933: Add condition on top of template rule - see MSC. // MSC3933: Add condition on top of template rule - see MSC.
Condition::Known(KnownCondition::RoomVersionSupports { Condition::Known(KnownCondition::RoomVersionSupports {
@ -534,8 +507,7 @@ pub const BASE_APPEND_UNDERRIDE_RULES: &[PushRule] = &[
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
// MSC3933: Type changed from template rule - see MSC. // MSC3933: Type changed from template rule - see MSC.
pattern: Some(Cow::Borrowed("m.message")), pattern: Cow::Borrowed("m.message"),
pattern_type: None,
})), })),
// MSC3933: Add condition on top of template rule - see MSC. // MSC3933: Add condition on top of template rule - see MSC.
Condition::Known(KnownCondition::RoomVersionSupports { Condition::Known(KnownCondition::RoomVersionSupports {
@ -554,8 +526,7 @@ pub const BASE_APPEND_UNDERRIDE_RULES: &[PushRule] = &[
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
// MSC3933: Type changed from template rule - see MSC. // MSC3933: Type changed from template rule - see MSC.
pattern: Some(Cow::Borrowed("m.file")), pattern: Cow::Borrowed("m.file"),
pattern_type: None,
})), })),
// MSC3933: Add condition on top of template rule - see MSC. // MSC3933: Add condition on top of template rule - see MSC.
Condition::Known(KnownCondition::RoomVersionSupports { Condition::Known(KnownCondition::RoomVersionSupports {
@ -574,8 +545,7 @@ pub const BASE_APPEND_UNDERRIDE_RULES: &[PushRule] = &[
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
// MSC3933: Type changed from template rule - see MSC. // MSC3933: Type changed from template rule - see MSC.
pattern: Some(Cow::Borrowed("m.image")), pattern: Cow::Borrowed("m.image"),
pattern_type: None,
})), })),
// MSC3933: Add condition on top of template rule - see MSC. // MSC3933: Add condition on top of template rule - see MSC.
Condition::Known(KnownCondition::RoomVersionSupports { Condition::Known(KnownCondition::RoomVersionSupports {
@ -594,8 +564,7 @@ pub const BASE_APPEND_UNDERRIDE_RULES: &[PushRule] = &[
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
// MSC3933: Type changed from template rule - see MSC. // MSC3933: Type changed from template rule - see MSC.
pattern: Some(Cow::Borrowed("m.video")), pattern: Cow::Borrowed("m.video"),
pattern_type: None,
})), })),
// MSC3933: Add condition on top of template rule - see MSC. // MSC3933: Add condition on top of template rule - see MSC.
Condition::Known(KnownCondition::RoomVersionSupports { Condition::Known(KnownCondition::RoomVersionSupports {
@ -614,8 +583,7 @@ pub const BASE_APPEND_UNDERRIDE_RULES: &[PushRule] = &[
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
// MSC3933: Type changed from template rule - see MSC. // MSC3933: Type changed from template rule - see MSC.
pattern: Some(Cow::Borrowed("m.audio")), pattern: Cow::Borrowed("m.audio"),
pattern_type: None,
})), })),
// MSC3933: Add condition on top of template rule - see MSC. // MSC3933: Add condition on top of template rule - see MSC.
Condition::Known(KnownCondition::RoomVersionSupports { Condition::Known(KnownCondition::RoomVersionSupports {
@ -633,18 +601,15 @@ pub const BASE_APPEND_UNDERRIDE_RULES: &[PushRule] = &[
conditions: Cow::Borrowed(&[ conditions: Cow::Borrowed(&[
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
pattern: Some(Cow::Borrowed("im.vector.modular.widgets")), pattern: Cow::Borrowed("im.vector.modular.widgets"),
pattern_type: None,
})), })),
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("content.type"), key: Cow::Borrowed("content.type"),
pattern: Some(Cow::Borrowed("jitsi")), pattern: Cow::Borrowed("jitsi"),
pattern_type: None,
})), })),
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("state_key"), key: Cow::Borrowed("state_key"),
pattern: Some(Cow::Borrowed("*")), pattern: Cow::Borrowed("*"),
pattern_type: None,
})), })),
]), ]),
actions: Cow::Borrowed(&[Action::Notify, HIGHLIGHT_FALSE_ACTION]), actions: Cow::Borrowed(&[Action::Notify, HIGHLIGHT_FALSE_ACTION]),
@ -660,8 +625,7 @@ pub const BASE_APPEND_UNDERRIDE_RULES: &[PushRule] = &[
}), }),
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
pattern: Some(Cow::Borrowed("org.matrix.msc3381.poll.start")), pattern: Cow::Borrowed("org.matrix.msc3381.poll.start"),
pattern_type: None,
})), })),
]), ]),
actions: Cow::Borrowed(&[Action::Notify, SOUND_ACTION]), actions: Cow::Borrowed(&[Action::Notify, SOUND_ACTION]),
@ -674,8 +638,7 @@ pub const BASE_APPEND_UNDERRIDE_RULES: &[PushRule] = &[
conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch( conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch(
EventMatchCondition { EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
pattern: Some(Cow::Borrowed("org.matrix.msc3381.poll.start")), pattern: Cow::Borrowed("org.matrix.msc3381.poll.start"),
pattern_type: None,
}, },
))]), ))]),
actions: Cow::Borrowed(&[Action::Notify]), actions: Cow::Borrowed(&[Action::Notify]),
@ -691,8 +654,7 @@ pub const BASE_APPEND_UNDERRIDE_RULES: &[PushRule] = &[
}), }),
Condition::Known(KnownCondition::EventMatch(EventMatchCondition { Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
pattern: Some(Cow::Borrowed("org.matrix.msc3381.poll.end")), pattern: Cow::Borrowed("org.matrix.msc3381.poll.end"),
pattern_type: None,
})), })),
]), ]),
actions: Cow::Borrowed(&[Action::Notify, SOUND_ACTION]), actions: Cow::Borrowed(&[Action::Notify, SOUND_ACTION]),
@ -705,8 +667,7 @@ pub const BASE_APPEND_UNDERRIDE_RULES: &[PushRule] = &[
conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch( conditions: Cow::Borrowed(&[Condition::Known(KnownCondition::EventMatch(
EventMatchCondition { EventMatchCondition {
key: Cow::Borrowed("type"), key: Cow::Borrowed("type"),
pattern: Some(Cow::Borrowed("org.matrix.msc3381.poll.end")), pattern: Cow::Borrowed("org.matrix.msc3381.poll.end"),
pattern_type: None,
}, },
))]), ))]),
actions: Cow::Borrowed(&[Action::Notify]), actions: Cow::Borrowed(&[Action::Notify]),

153
rust/src/push/evaluator.rs
View File

@ -12,9 +12,10 @@
// See the License for the specific language governing permissions and // See the License for the specific language governing permissions and
// limitations under the License. // limitations under the License.
use std::borrow::Cow;
use std::collections::{BTreeMap, BTreeSet}; use std::collections::{BTreeMap, BTreeSet};
use crate::push::JsonValue; use crate::push::{EventMatchPatternType, JsonValue};
use anyhow::{Context, Error}; use anyhow::{Context, Error};
use lazy_static::lazy_static; use lazy_static::lazy_static;
use log::warn; use log::warn;
@ -23,8 +24,8 @@ use regex::Regex;
use super::{ use super::{
utils::{get_glob_matcher, get_localpart_from_id, GlobMatchType}, utils::{get_glob_matcher, get_localpart_from_id, GlobMatchType},
Action, Condition, EventMatchCondition, ExactEventMatchCondition, FilteredPushRules, Action, Condition, ExactEventMatchCondition, FilteredPushRules, KnownCondition,
KnownCondition, RelatedEventMatchCondition, SimpleJsonValue, SimpleJsonValue,
}; };
lazy_static! { lazy_static! {
@ -256,14 +257,58 @@ impl PushRuleEvaluator {
}; };
let result = match known_condition { let result = match known_condition {
KnownCondition::EventMatch(event_match) => { KnownCondition::EventMatch(event_match) => self.match_event_match(
self.match_event_match(event_match, user_id)? &self.flattened_keys,
&event_match.key,
&event_match.pattern,
)?,
KnownCondition::EventMatchType(event_match) => {
// The `pattern_type` can either be "user_id" or "user_localpart",
// either way if we don't have a `user_id` then the condition can't
// match.
let user_id = if let Some(user_id) = user_id {
user_id
} else {
return Ok(false);
};
let pattern = match &*event_match.pattern_type {
EventMatchPatternType::UserId => user_id,
EventMatchPatternType::UserLocalpart => get_localpart_from_id(user_id)?,
};
self.match_event_match(&self.flattened_keys, &event_match.key, pattern)?
} }
KnownCondition::ExactEventMatch(exact_event_match) => { KnownCondition::ExactEventMatch(exact_event_match) => {
self.match_exact_event_match(exact_event_match)? self.match_exact_event_match(exact_event_match)?
} }
KnownCondition::RelatedEventMatch(event_match) => { KnownCondition::RelatedEventMatch(event_match) => self.match_related_event_match(
self.match_related_event_match(event_match, user_id)? &event_match.rel_type.clone(),
event_match.include_fallbacks,
event_match.key.clone(),
event_match.pattern.clone(),
)?,
KnownCondition::RelatedEventMatchType(event_match) => {
// The `pattern_type` can either be "user_id" or "user_localpart",
// either way if we don't have a `user_id` then the condition can't
// match.
let user_id = if let Some(user_id) = user_id {
user_id
} else {
return Ok(false);
};
let pattern = match &*event_match.pattern_type {
EventMatchPatternType::UserId => user_id,
EventMatchPatternType::UserLocalpart => get_localpart_from_id(user_id)?,
};
self.match_related_event_match(
&event_match.rel_type.clone(),
event_match.include_fallbacks,
Some(event_match.key.clone()),
Some(Cow::Borrowed(pattern)),
)?
} }
KnownCondition::ExactEventPropertyContains(exact_event_match) => { KnownCondition::ExactEventPropertyContains(exact_event_match) => {
self.match_exact_event_property_contains(exact_event_match)? self.match_exact_event_property_contains(exact_event_match)?
@ -325,32 +370,12 @@ impl PushRuleEvaluator {
/// Evaluates a `event_match` condition. /// Evaluates a `event_match` condition.
fn match_event_match( fn match_event_match(
&self, &self,
event_match: &EventMatchCondition, flattened_event: &BTreeMap<String, JsonValue>,
user_id: Option<&str>, key: &str,
pattern: &str,
) -> Result<bool, Error> { ) -> Result<bool, Error> {
let pattern = if let Some(pattern) = &event_match.pattern {
pattern
} else if let Some(pattern_type) = &event_match.pattern_type {
// The `pattern_type` can either be "user_id" or "user_localpart",
// either way if we don't have a `user_id` then the condition can't
// match.
let user_id = if let Some(user_id) = user_id {
user_id
} else {
return Ok(false);
};
match &**pattern_type {
"user_id" => user_id,
"user_localpart" => get_localpart_from_id(user_id)?,
_ => return Ok(false),
}
} else {
return Ok(false);
};
let haystack = if let Some(JsonValue::Value(SimpleJsonValue::Str(haystack))) = let haystack = if let Some(JsonValue::Value(SimpleJsonValue::Str(haystack))) =
self.flattened_keys.get(&*event_match.key) flattened_event.get(key)
{ {
haystack haystack
} else { } else {
@ -359,7 +384,7 @@ impl PushRuleEvaluator {
// For the content.body we match against "words", but for everything // For the content.body we match against "words", but for everything
// else we match against the entire value. // else we match against the entire value.
let match_type = if event_match.key == "content.body" { let match_type = if key == "content.body" {
GlobMatchType::Word GlobMatchType::Word
} else { } else {
GlobMatchType::Whole GlobMatchType::Whole
@ -395,8 +420,10 @@ impl PushRuleEvaluator {
/// Evaluates a `related_event_match` condition. (MSC3664) /// Evaluates a `related_event_match` condition. (MSC3664)
fn match_related_event_match( fn match_related_event_match(
&self, &self,
event_match: &RelatedEventMatchCondition, rel_type: &str,
user_id: Option<&str>, include_fallbacks: Option<bool>,
key: Option<Cow<str>>,
pattern: Option<Cow<str>>,
) -> Result<bool, Error> { ) -> Result<bool, Error> {
// First check if related event matching is enabled... // First check if related event matching is enabled...
if !self.related_event_match_enabled { if !self.related_event_match_enabled {
@ -404,7 +431,7 @@ impl PushRuleEvaluator {
} }
// get the related event, fail if there is none. // get the related event, fail if there is none.
let event = if let Some(event) = self.related_events_flattened.get(&*event_match.rel_type) { let event = if let Some(event) = self.related_events_flattened.get(rel_type) {
event event
} else { } else {
return Ok(false); return Ok(false);
@ -412,58 +439,18 @@ impl PushRuleEvaluator {
// If we are not matching fallbacks, don't match if our special key indicating this is a // If we are not matching fallbacks, don't match if our special key indicating this is a
// fallback relation is not present. // fallback relation is not present.
if !event_match.include_fallbacks.unwrap_or(false) if !include_fallbacks.unwrap_or(false) && event.contains_key("im.vector.is_falling_back") {
&& event.contains_key("im.vector.is_falling_back")
{
return Ok(false); return Ok(false);
} }
// if we have no key, accept the event as matching, if it existed without matching any match (key, pattern) {
// fields. // if we have no key, accept the event as matching.
let key = if let Some(key) = &event_match.key { (None, _) => Ok(true),
key // There was a key, so we *must* have a pattern to go with it.
} else { (Some(_), None) => Ok(false),
return Ok(true); // If there is a key & pattern, check if they're in the flattened event (given by rel_type).
}; (Some(key), Some(pattern)) => self.match_event_match(event, &key, &pattern),
let pattern = if let Some(pattern) = &event_match.pattern {
pattern
} else if let Some(pattern_type) = &event_match.pattern_type {
// The `pattern_type` can either be "user_id" or "user_localpart",
// either way if we don't have a `user_id` then the condition can't
// match.
let user_id = if let Some(user_id) = user_id {
user_id
} else {
return Ok(false);
};
match &**pattern_type {
"user_id" => user_id,
"user_localpart" => get_localpart_from_id(user_id)?,
_ => return Ok(false),
} }
} else {
return Ok(false);
};
let haystack =
if let Some(JsonValue::Value(SimpleJsonValue::Str(haystack))) = event.get(&**key) {
haystack
} else {
return Ok(false);
};
// For the content.body we match against "words", but for everything
// else we match against the entire value.
let match_type = if key == "content.body" {
GlobMatchType::Word
} else {
GlobMatchType::Whole
};
let mut compiled_pattern = get_glob_matcher(pattern, match_type)?;
compiled_pattern.is_match(haystack)
} }
/// Evaluates a `exact_event_property_contains` condition. (MSC3758) /// Evaluates a `exact_event_property_contains` condition. (MSC3758)

103
rust/src/push/mod.rs
View File

@ -328,10 +328,16 @@ pub enum Condition {
#[serde(tag = "kind")] #[serde(tag = "kind")]
pub enum KnownCondition { pub enum KnownCondition {
EventMatch(EventMatchCondition), EventMatch(EventMatchCondition),
// Identical to event_match but gives predefined patterns. Cannot be added by users.
#[serde(skip_deserializing, rename = "event_match")]
EventMatchType(EventMatchTypeCondition),
#[serde(rename = "com.beeper.msc3758.exact_event_match")] #[serde(rename = "com.beeper.msc3758.exact_event_match")]
ExactEventMatch(ExactEventMatchCondition), ExactEventMatch(ExactEventMatchCondition),
#[serde(rename = "im.nheko.msc3664.related_event_match")] #[serde(rename = "im.nheko.msc3664.related_event_match")]
RelatedEventMatch(RelatedEventMatchCondition), RelatedEventMatch(RelatedEventMatchCondition),
// Identical to related_event_match but gives predefined patterns. Cannot be added by users.
#[serde(skip_deserializing, rename = "im.nheko.msc3664.related_event_match")]
RelatedEventMatchType(RelatedEventMatchTypeCondition),
#[serde(rename = "org.matrix.msc3966.exact_event_property_contains")] #[serde(rename = "org.matrix.msc3966.exact_event_property_contains")]
ExactEventPropertyContains(ExactEventMatchCondition), ExactEventPropertyContains(ExactEventMatchCondition),
#[serde(rename = "org.matrix.msc3952.is_user_mention")] #[serde(rename = "org.matrix.msc3952.is_user_mention")]
@ -362,14 +368,27 @@ impl<'source> FromPyObject<'source> for Condition {
} }
} }
/// The body of a [`Condition::EventMatch`] /// The body of a [`Condition::EventMatch`] with a pattern.
#[derive(Serialize, Deserialize, Debug, Clone)] #[derive(Serialize, Deserialize, Debug, Clone)]
pub struct EventMatchCondition { pub struct EventMatchCondition {
pub key: Cow<'static, str>, pub key: Cow<'static, str>,
#[serde(skip_serializing_if = "Option::is_none")] pub pattern: Cow<'static, str>,
pub pattern: Option<Cow<'static, str>>, }
#[serde(skip_serializing_if = "Option::is_none")]
pub pattern_type: Option<Cow<'static, str>>, #[derive(Serialize, Debug, Clone)]
#[serde(rename_all = "snake_case")]
pub enum EventMatchPatternType {
UserId,
UserLocalpart,
}
/// The body of a [`Condition::EventMatch`] that uses user_id or user_localpart as a pattern.
#[derive(Serialize, Debug, Clone)]
pub struct EventMatchTypeCondition {
pub key: Cow<'static, str>,
// During serialization, the pattern_type property gets replaced with a
// pattern property of the correct value in synapse.push.clientformat.format_push_rules_for_user.
pub pattern_type: Cow<'static, EventMatchPatternType>,
} }
/// The body of a [`Condition::ExactEventMatch`] /// The body of a [`Condition::ExactEventMatch`]
@ -386,8 +405,18 @@ pub struct RelatedEventMatchCondition {
pub key: Option<Cow<'static, str>>, pub key: Option<Cow<'static, str>>,
#[serde(skip_serializing_if = "Option::is_none")] #[serde(skip_serializing_if = "Option::is_none")]
pub pattern: Option<Cow<'static, str>>, pub pattern: Option<Cow<'static, str>>,
pub rel_type: Cow<'static, str>,
#[serde(skip_serializing_if = "Option::is_none")] #[serde(skip_serializing_if = "Option::is_none")]
pub pattern_type: Option<Cow<'static, str>>, pub include_fallbacks: Option<bool>,
}
/// The body of a [`Condition::RelatedEventMatch`] that uses user_id or user_localpart as a pattern.
#[derive(Serialize, Debug, Clone)]
pub struct RelatedEventMatchTypeCondition {
// This is only used if pattern_type exists (and thus key must exist), so is
// a bit simpler than RelatedEventMatchCondition.
pub key: Cow<'static, str>,
pub pattern_type: Cow<'static, EventMatchPatternType>,
pub rel_type: Cow<'static, str>, pub rel_type: Cow<'static, str>,
#[serde(skip_serializing_if = "Option::is_none")] #[serde(skip_serializing_if = "Option::is_none")]
pub include_fallbacks: Option<bool>, pub include_fallbacks: Option<bool>,
@ -571,8 +600,7 @@ impl FilteredPushRules {
fn test_serialize_condition() { fn test_serialize_condition() {
let condition = Condition::Known(KnownCondition::EventMatch(EventMatchCondition { let condition = Condition::Known(KnownCondition::EventMatch(EventMatchCondition {
key: "content.body".into(), key: "content.body".into(),
pattern: Some("coffee".into()), pattern: "coffee".into(),
pattern_type: None,
})); }));
let json = serde_json::to_string(&condition).unwrap(); let json = serde_json::to_string(&condition).unwrap();
@ -586,7 +614,33 @@ fn test_serialize_condition() {
fn test_deserialize_condition() { fn test_deserialize_condition() {
let json = r#"{"kind":"event_match","key":"content.body","pattern":"coffee"}"#; let json = r#"{"kind":"event_match","key":"content.body","pattern":"coffee"}"#;
let _: Condition = serde_json::from_str(json).unwrap(); let condition: Condition = serde_json::from_str(json).unwrap();
assert!(matches!(
condition,
Condition::Known(KnownCondition::EventMatch(_))
));
}
#[test]
fn test_serialize_event_match_condition_with_pattern_type() {
let condition = Condition::Known(KnownCondition::EventMatchType(EventMatchTypeCondition {
key: "content.body".into(),
pattern_type: Cow::Owned(EventMatchPatternType::UserId),
}));
let json = serde_json::to_string(&condition).unwrap();
assert_eq!(
json,
r#"{"kind":"event_match","key":"content.body","pattern_type":"user_id"}"#
)
}
#[test]
fn test_cannot_deserialize_event_match_condition_with_pattern_type() {
let json = r#"{"kind":"event_match","key":"content.body","pattern_type":"user_id"}"#;
let condition: Condition = serde_json::from_str(json).unwrap();
assert!(matches!(condition, Condition::Unknown(_)));
} }
#[test] #[test]
@ -600,6 +654,37 @@ fn test_deserialize_unstable_msc3664_condition() {
)); ));
} }
#[test]
fn test_serialize_unstable_msc3664_condition_with_pattern_type() {
let condition = Condition::Known(KnownCondition::RelatedEventMatchType(
RelatedEventMatchTypeCondition {
key: "content.body".into(),
pattern_type: Cow::Owned(EventMatchPatternType::UserId),
rel_type: "m.in_reply_to".into(),
include_fallbacks: Some(true),
},
));
let json = serde_json::to_string(&condition).unwrap();
assert_eq!(
json,
r#"{"kind":"im.nheko.msc3664.related_event_match","key":"content.body","pattern_type":"user_id","rel_type":"m.in_reply_to","include_fallbacks":true}"#
)
}
#[test]
fn test_cannot_deserialize_unstable_msc3664_condition_with_pattern_type() {
let json = r#"{"kind":"im.nheko.msc3664.related_event_match","key":"content.body","pattern_type":"user_id","rel_type":"m.in_reply_to"}"#;
let condition: Condition = serde_json::from_str(json).unwrap();
// Since pattern is optional on RelatedEventMatch it deserializes it to that
// instead of RelatedEventMatchType.
assert!(matches!(
condition,
Condition::Known(KnownCondition::RelatedEventMatch(_))
));
}
#[test] #[test]
fn test_deserialize_unstable_msc3931_condition() { fn test_deserialize_unstable_msc3931_condition() {
let json = let json =

27
tests/push/test_push_rule_evaluator.py
View File

@ -401,6 +401,33 @@ class PushRuleEvaluatorTestCase(unittest.TestCase):
"pattern should not match before a newline", "pattern should not match before a newline",
) )
def test_event_match_pattern(self) -> None:
"""Check that event_match conditions do not use a "pattern_type" from user data."""
# The pattern_type should not be deserialized into anything valid.
condition = {
"kind": "event_match",
"key": "content.value",
"pattern_type": "user_id",
}
self._assert_not_matches(
condition,
{"value": "@user:test"},
"should not be possible to pass a pattern_type in",
)
# This is an internal-only condition which shouldn't get deserialized.
condition = {
"kind": "event_match_type",
"key": "content.value",
"pattern_type": "user_id",
}
self._assert_not_matches(
condition,
{"value": "@user:test"},
"should not be possible to pass a pattern_type in",
)
def test_exact_event_match_string(self) -> None: def test_exact_event_match_string(self) -> None:
"""Check that exact_event_match conditions work as expected for strings.""" """Check that exact_event_match conditions work as expected for strings."""