Disable pushing for server ACL events (MSC3786). (#13997)

Switches to the stable identifier for MSC3786 and enables it
by default.

This disables pushes of m.room.server_acl events.

changelog.d/13997.feature

+Ignore server ACL changes when generating pushes. Implement [MSC3786](https://github.com/matrix-org/matrix-spec-proposals/pull/3786).

rust/src/push/base_rules.rs

@@ -173,7 +173,7 @@ pub const BASE_APPEND_OVERRIDE_RULES: &[PushRule] = &[
         default_enabled: true,
     },
     PushRule {
-        rule_id: Cow::Borrowed("global/override/.org.matrix.msc3786.rule.room.server_acl"),
+        rule_id: Cow::Borrowed("global/override/.m.rule.room.server_acl"),
         priority_class: 5,
         conditions: Cow::Borrowed(&[
             Condition::Known(KnownCondition::EventMatch(EventMatchCondition {

rust/src/push/mod.rs

@@ -401,7 +401,6 @@ impl PushRules {
 pub struct FilteredPushRules {
     push_rules: PushRules,
     enabled_map: BTreeMap<String, bool>,
-    msc3786_enabled: bool,
     msc3772_enabled: bool,
 }
 
@@ -411,13 +410,11 @@ impl FilteredPushRules {
     pub fn py_new(
         push_rules: PushRules,
         enabled_map: BTreeMap<String, bool>,
-        msc3786_enabled: bool,
         msc3772_enabled: bool,
     ) -> Self {
         Self {
             push_rules,
             enabled_map,
-            msc3786_enabled,
             msc3772_enabled,
         }
     }
@@ -437,12 +434,6 @@ impl FilteredPushRules {
             .iter()
             .filter(|rule| {
                 // Ignore disabled experimental push rules
-                if !self.msc3786_enabled
-                    && rule.rule_id == "global/override/.org.matrix.msc3786.rule.room.server_acl"
-                {
-                    return false;
-                }
-
                 if !self.msc3772_enabled
                     && rule.rule_id == "global/underride/.org.matrix.msc3772.thread_reply"
                 {

stubs/synapse/synapse_rust/push.pyi

@@ -26,11 +26,7 @@ class PushRules:
 
 class FilteredPushRules:
     def __init__(
-        self,
-        push_rules: PushRules,
-        enabled_map: Dict[str, bool],
-        msc3786_enabled: bool,
-        msc3772_enabled: bool,
+        self, push_rules: PushRules, enabled_map: Dict[str, bool], msc3772_enabled: bool
     ): ...
     def rules(self) -> Collection[Tuple[PushRule, bool]]: ...
 

synapse/config/experimental.py

@@ -95,9 +95,6 @@ class ExperimentalConfig(Config):
         # MSC2815 (allow room moderators to view redacted event content)
         self.msc2815_enabled: bool = experimental.get("msc2815_enabled", False)
 
-        # MSC3786 (Add a default push rule to ignore m.room.server_acl events)
-        self.msc3786_enabled: bool = experimental.get("msc3786_enabled", False)
-
         # MSC3771: Thread read receipts
         self.msc3771_enabled: bool = experimental.get("msc3771_enabled", False)
         # MSC3772: A push rule for mutual relations.

synapse/storage/databases/main/push_rule.py

@@ -81,15 +81,10 @@ def _load_rules(
         for rawrule in rawrules
     ]
 
-    push_rules = PushRules(
-        ruleslist,
-    )
+    push_rules = PushRules(ruleslist)
 
     filtered_rules = FilteredPushRules(
-        push_rules,
-        enabled_map,
-        msc3786_enabled=experimental_config.msc3786_enabled,
-        msc3772_enabled=experimental_config.msc3772_enabled,
+        push_rules, enabled_map, msc3772_enabled=experimental_config.msc3772_enabled
     )
 
     return filtered_rules