51 lines
1.5 KiB
Rust
51 lines
1.5 KiB
Rust
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//! Helper traits and types to work with events (aka PDUs).
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pub mod create;
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pub mod join_rules;
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pub mod member;
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pub mod power_levels;
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pub mod third_party_invite;
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pub use self::{
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create::RoomCreateEvent,
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join_rules::{JoinRule, RoomJoinRulesEvent},
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member::{RoomMemberEvent, RoomMemberEventContent},
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power_levels::{RoomPowerLevelsEvent, RoomPowerLevelsIntField},
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third_party_invite::RoomThirdPartyInviteEvent,
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};
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/// Whether the given event is a power event.
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///
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/// Definition in the spec:
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///
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/// > A power event is a state event with type `m.room.power_levels` or
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/// > `m.room.join_rules`, or a
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/// > state event with type `m.room.member` where the `membership` is `leave` or
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/// > `ban` and the
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/// > `sender` does not match the `state_key`. The idea behind this is that
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/// > power events are events
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/// > that might remove someone’s ability to do something in the room.
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pub(super) fn is_power_event<Pdu>(event: &Pdu) -> bool
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where
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Pdu: crate::matrix::Event,
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{
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use ruma::events::{TimelineEventType, room::member::MembershipState};
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match event.event_type() {
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| TimelineEventType::RoomPowerLevels
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| TimelineEventType::RoomJoinRules
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| TimelineEventType::RoomCreate => event.state_key() == Some(""),
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| TimelineEventType::RoomMember => {
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let content = RoomMemberEventContent::new(event.content());
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if content.membership().is_ok_and(|membership| {
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matches!(membership, MembershipState::Leave | MembershipState::Ban)
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}) {
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return Some(event.sender().as_str()) != event.state_key();
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}
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false
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},
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| _ => false,
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}
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}
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