2021-05-03 15:50:27 +02:00

101 lines
3.1 KiB
Rust

//! [GET /_matrix/client/r0/rooms/{roomId}/context/{eventId}](https://matrix.org/docs/spec/client_server/r0.6.0#get-matrix-client-r0-rooms-roomid-context-eventid)
use js_int::{uint, UInt};
use ruma_api::ruma_api;
use ruma_events::{AnyRoomEvent, AnyStateEvent};
use ruma_identifiers::{EventId, RoomId};
use ruma_serde::Raw;
use crate::r0::filter::{IncomingRoomEventFilter, RoomEventFilter};
ruma_api! {
metadata: {
description: "Get the events immediately preceding and following a given event.",
method: GET,
path: "/_matrix/client/r0/rooms/:room_id/context/:event_id",
name: "get_context",
rate_limited: false,
authentication: AccessToken,
}
request: {
/// The room to get events from.
#[ruma_api(path)]
pub room_id: &'a RoomId,
/// The event to get context around.
#[ruma_api(path)]
pub event_id: &'a EventId,
/// The maximum number of events to return.
///
/// Defaults to 10.
#[ruma_api(query)]
#[serde(default = "default_limit", skip_serializing_if = "is_default_limit")]
pub limit: UInt,
/// A RoomEventFilter to filter returned events with.
#[ruma_api(query)]
#[serde(
with = "ruma_serde::json_string",
default,
skip_serializing_if = "Option::is_none"
)]
pub filter: Option<RoomEventFilter<'a>>,
}
#[derive(Default)]
response: {
/// A token that can be used to paginate backwards with.
#[serde(skip_serializing_if = "Option::is_none")]
pub start: Option<String>,
/// A token that can be used to paginate forwards with.
#[serde(skip_serializing_if = "Option::is_none")]
pub end: Option<String>,
/// A list of room events that happened just before the requested event,
/// in reverse-chronological order.
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub events_before: Vec<Raw<AnyRoomEvent>>,
/// Details of the requested event.
#[serde(skip_serializing_if = "Option::is_none")]
pub event: Option<Raw<AnyRoomEvent>>,
/// A list of room events that happened just after the requested event,
/// in chronological order.
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub events_after: Vec<Raw<AnyRoomEvent>>,
/// The state of the room at the last event returned.
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub state: Vec<Raw<AnyStateEvent>>,
}
error: crate::Error
}
impl<'a> Request<'a> {
/// Creates a new `Request` with the given room id and event id.
pub fn new(room_id: &'a RoomId, event_id: &'a EventId) -> Self {
Self { room_id, event_id, limit: default_limit(), filter: None }
}
}
impl Response {
/// Creates an empty `Response`.
pub fn new() -> Self {
Default::default()
}
}
fn default_limit() -> UInt {
uint!(10)
}
#[allow(clippy::trivially_copy_pass_by_ref)]
fn is_default_limit(val: &UInt) -> bool {
*val == default_limit()
}