use crate::{database::DatabaseGuard, ConduitResult, Database, Error, Ruma}; use regex::Regex; use ruma::{ api::{ appservice, client::{ error::ErrorKind, r0::alias::{create_alias, delete_alias, get_alias}, }, federation, }, RoomAliasId, }; #[cfg(feature = "conduit_bin")] use rocket::{delete, get, put}; /// # `PUT /_matrix/client/r0/directory/room/{roomAlias}` /// /// Creates a new room alias on this server. #[cfg_attr( feature = "conduit_bin", put("/_matrix/client/r0/directory/room/<_>", data = "") )] #[tracing::instrument(skip(db, body))] pub async fn create_alias_route( db: DatabaseGuard, body: Ruma>, ) -> ConduitResult { if body.room_alias.server_name() != db.globals.server_name() { return Err(Error::BadRequest( ErrorKind::InvalidParam, "Alias is from another server.", )); } if db.rooms.id_from_alias(&body.room_alias)?.is_some() { return Err(Error::Conflict("Alias already exists.")); } db.rooms .set_alias(&body.room_alias, Some(&body.room_id), &db.globals)?; db.flush()?; Ok(create_alias::Response::new().into()) } /// # `DELETE /_matrix/client/r0/directory/room/{roomAlias}` /// /// Deletes a room alias from this server. /// /// - TODO: additional access control checks /// - TODO: Update canonical alias event #[cfg_attr( feature = "conduit_bin", delete("/_matrix/client/r0/directory/room/<_>", data = "") )] #[tracing::instrument(skip(db, body))] pub async fn delete_alias_route( db: DatabaseGuard, body: Ruma>, ) -> ConduitResult { if body.room_alias.server_name() != db.globals.server_name() { return Err(Error::BadRequest( ErrorKind::InvalidParam, "Alias is from another server.", )); } db.rooms.set_alias(&body.room_alias, None, &db.globals)?; // TODO: update alt_aliases? db.flush()?; Ok(delete_alias::Response::new().into()) } /// # `GET /_matrix/client/r0/directory/room/{roomAlias}` /// /// Resolve an alias locally or over federation. /// /// - TODO: Suggest more servers to join via #[cfg_attr( feature = "conduit_bin", get("/_matrix/client/r0/directory/room/<_>", data = "") )] #[tracing::instrument(skip(db, body))] pub async fn get_alias_route( db: DatabaseGuard, body: Ruma>, ) -> ConduitResult { get_alias_helper(&db, &body.room_alias).await } pub(crate) async fn get_alias_helper( db: &Database, room_alias: &RoomAliasId, ) -> ConduitResult { if room_alias.server_name() != db.globals.server_name() { let response = db .sending .send_federation_request( &db.globals, room_alias.server_name(), federation::query::get_room_information::v1::Request { room_alias }, ) .await?; return Ok(get_alias::Response::new(response.room_id, response.servers).into()); } let mut room_id = None; match db.rooms.id_from_alias(&room_alias)? { Some(r) => room_id = Some(r), None => { for (_id, registration) in db.appservice.all()? { let aliases = registration .get("namespaces") .and_then(|ns| ns.get("aliases")) .and_then(|aliases| aliases.as_sequence()) .map_or_else(Vec::new, |aliases| { aliases .iter() .filter_map(|aliases| Regex::new(aliases.get("regex")?.as_str()?).ok()) .collect::>() }); if aliases .iter() .any(|aliases| aliases.is_match(room_alias.as_str())) && db .sending .send_appservice_request( &db.globals, registration, appservice::query::query_room_alias::v1::Request { room_alias }, ) .await .is_ok() { room_id = Some(db.rooms.id_from_alias(&room_alias)?.ok_or_else(|| { Error::bad_config("Appservice lied to us. Room does not exist.") })?); break; } } } }; let room_id = match room_id { Some(room_id) => room_id, None => { return Err(Error::BadRequest( ErrorKind::NotFound, "Room with alias not found.", )) } }; Ok(get_alias::Response::new(room_id, vec![db.globals.server_name().to_owned()]).into()) }