ruwuma/crates/ruma-federation-api/src/event/get_missing_events.rs
2022-04-20 10:39:36 +02:00

90 lines
2.7 KiB
Rust

//! `POST /_matrix/federation/*/get_missing_events/{roomId}`
//!
//! Retrieves previous events that the sender is missing.
pub mod v1 {
//! `/v1/` ([spec])
//!
//! [spec]: https://spec.matrix.org/v1.2/server-server-api/#post_matrixfederationv1get_missing_eventsroomid
use js_int::{uint, UInt};
use ruma_common::{api::ruma_api, OwnedEventId, RoomId};
use serde_json::value::RawValue as RawJsonValue;
ruma_api! {
metadata: {
description: "Retrieves previous events that the sender is missing.",
method: POST,
name: "get_missing_events",
stable_path: "/_matrix/federation/v1/get_missing_events/:room_id",
rate_limited: false,
authentication: ServerSignatures,
added: 1.0,
}
request: {
/// The room ID to search in.
#[ruma_api(path)]
pub room_id: &'a RoomId,
/// The maximum number of events to retrieve.
///
/// Defaults to 10.
#[serde(default = "default_limit", skip_serializing_if = "is_default_limit")]
pub limit: UInt,
/// The minimum depth of events to retrieve.
///
/// Defaults to 0.
#[serde(default, skip_serializing_if = "ruma_common::serde::is_default")]
pub min_depth: UInt,
/// The latest event IDs that the sender already has.
///
/// These are skipped when retrieving the previous events of `latest_events`.
pub earliest_events: &'a [OwnedEventId],
/// The event IDs to retrieve the previous events for.
pub latest_events: &'a [OwnedEventId],
}
#[derive(Default)]
response: {
/// The missing PDUs.
pub events: Vec<Box<RawJsonValue>>,
}
}
impl<'a> Request<'a> {
/// Creates a new `Request` for events in the given room with the given constraints.
pub fn new(
room_id: &'a RoomId,
earliest_events: &'a [OwnedEventId],
latest_events: &'a [OwnedEventId],
) -> Self {
Self {
room_id,
limit: default_limit(),
min_depth: UInt::default(),
earliest_events,
latest_events,
}
}
}
impl Response {
/// Creates a new `Response` with the given events.
pub fn new(events: Vec<Box<RawJsonValue>>) -> Self {
Self { events }
}
}
fn default_limit() -> UInt {
uint!(10)
}
fn is_default_limit(val: &UInt) -> bool {
*val == default_limit()
}
}