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add allowed_rooms() utility to JoinRule

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Signed-off-by: Jason Volk <jason@zemos.net>
This commit is contained in:
Jason Volk 2025-04-04 00:32:31 +00:00
parent db8fe2f361
commit 920148dca1
1 changed files with 21 additions and 2 deletions
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23
crates/ruma-events/src/room/join_rules.rs
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@ -2,9 +2,12 @@
//!
//! [`m.room.join_rules`]: https://spec.matrix.org/latest/client-server-api/#mroomjoin_rules
use std::{borrow::Cow, collections::BTreeMap};
use std::{
borrow::{Borrow, Cow},
collections::BTreeMap,
};
use ruma_common::{serde::from_raw_json_value, space::SpaceRoomJoinRule, OwnedRoomId};
use ruma_common::{serde::from_raw_json_value, space::SpaceRoomJoinRule, OwnedRoomId, RoomId};
use ruma_macros::EventContent;
use serde::{
de::{Deserializer, Error},
@ -113,6 +116,22 @@ pub enum JoinRule {
}
impl JoinRule {
/// Returns allowed room_id's for restricted rooms; empty for other variants
pub fn allowed_rooms(&self) -> impl Iterator<Item = &RoomId> + Send {
let rules = match self {
JoinRule::Restricted(rules) | JoinRule::KnockRestricted(rules) => Some(rules),
_ => None,
};
rules.into_iter().flat_map(|rules| rules.allow.iter()).filter_map(|rule| {
if let AllowRule::RoomMembership(RoomMembership { room_id: membership }) = rule {
Some(membership.borrow())
} else {
None
}
})
}
/// Returns the string name of this `JoinRule`
pub fn as_str(&self) -> &str {
match self {