70 lines
1.6 KiB
Rust
70 lines
1.6 KiB
Rust
use std::{borrow::Borrow, iter::once};
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use axum::extract::State;
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use futures::StreamExt;
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use ruma::{
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RoomId,
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api::{client::error::ErrorKind, federation::authorization::get_event_authorization},
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};
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use tuwunel_core::{Error, Result, utils::stream::ReadyExt};
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use super::AccessCheck;
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use crate::Ruma;
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/// # `GET /_matrix/federation/v1/event_auth/{roomId}/{eventId}`
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///
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/// Retrieves the auth chain for a given event.
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///
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/// - This does not include the event itself
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pub(crate) async fn get_event_authorization_route(
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State(services): State<crate::State>,
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body: Ruma<get_event_authorization::v1::Request>,
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) -> Result<get_event_authorization::v1::Response> {
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AccessCheck {
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services: &services,
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origin: body.origin(),
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room_id: &body.room_id,
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event_id: None,
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}
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.check()
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.await?;
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let event = services
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.rooms
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.timeline
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.get_pdu_json(&body.event_id)
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.await
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.map_err(|_| Error::BadRequest(ErrorKind::NotFound, "Event not found."))?;
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let room_id_str = event
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.get("room_id")
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.and_then(|val| val.as_str())
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.ok_or_else(|| Error::bad_database("Invalid event in database."))?;
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let room_id = <&RoomId>::try_from(room_id_str)
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.map_err(|_| Error::bad_database("Invalid room_id in event in database."))?;
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let auth_chain = services
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.rooms
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.auth_chain
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.event_ids_iter(room_id, once(body.event_id.borrow()))
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.ready_filter_map(Result::ok)
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.filter_map(|id| async move {
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services
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.rooms
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.timeline
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.get_pdu_json(&id)
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.await
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.ok()
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})
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.then(|pdu| {
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services
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.sending
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.convert_to_outgoing_federation_event(pdu)
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})
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.collect()
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.await;
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Ok(get_event_authorization::v1::Response { auth_chain })
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}
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