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improvement: efficient /sync, mutex for federation transactions

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This commit is contained in:
Timo Kösters 2021-07-01 19:55:26 +02:00
parent 1c25492a7e
commit e15e6d4405
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GPG key ID: 24DA7517711A2BA4
5 changed files with 359 additions and 263 deletions
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185
src/server_server.rs
View file

@ -625,13 +625,44 @@ pub async fn send_transaction_message_route(
}
};
// 0. Check the server is in the room
let room_id = match value
.get("room_id")
.and_then(|id| RoomId::try_from(id.as_str()?).ok())
{
Some(id) => id,
None => {
// Event is invalid
resolved_map.insert(event_id, Err("Event needs a valid RoomId.".to_string()));
continue;
}
};
let mutex = Arc::clone(
db.globals
.roomid_mutex
.write()
.unwrap()
.entry(room_id.clone())
.or_default(),
);
let mutex_lock = mutex.lock().await;
let start_time = Instant::now();
resolved_map.insert(
event_id.clone(),
handle_incoming_pdu(&body.origin, &event_id, value, true, &db, &pub_key_map)
.await
.map(|_| ()),
handle_incoming_pdu(
&body.origin,
&event_id,
&room_id,
value,
true,
&db,
&pub_key_map,
)
.await
.map(|_| ()),
);
drop(mutex_lock);
let elapsed = start_time.elapsed();
if elapsed > Duration::from_secs(1) {
@ -784,8 +815,8 @@ pub async fn send_transaction_message_route(
type AsyncRecursiveResult<'a, T, E> = Pin<Box<dyn Future<Output = StdResult<T, E>> + 'a + Send>>;
/// When receiving an event one needs to:
/// 0. Skip the PDU if we already know about it
/// 1. Check the server is in the room
/// 0. Check the server is in the room
/// 1. Skip the PDU if we already know about it
/// 2. Check signatures, otherwise drop
/// 3. Check content hash, redact if doesn't match
/// 4. Fetch any missing auth events doing all checks listed here starting at 1. These are not
@ -810,6 +841,7 @@ type AsyncRecursiveResult<'a, T, E> = Pin<Box<dyn Future<Output = StdResult<T, E
pub fn handle_incoming_pdu<'a>(
origin: &'a ServerName,
event_id: &'a EventId,
room_id: &'a RoomId,
value: BTreeMap<String, CanonicalJsonValue>,
is_timeline_event: bool,
db: &'a Database,
@ -817,24 +849,6 @@ pub fn handle_incoming_pdu<'a>(
) -> AsyncRecursiveResult<'a, Option<Vec<u8>>, String> {
Box::pin(async move {
// TODO: For RoomVersion6 we must check that Raw<..> is canonical do we anywhere?: https://matrix.org/docs/spec/rooms/v6#canonical-json
// 0. Skip the PDU if we already have it as a timeline event
if let Ok(Some(pdu_id)) = db.rooms.get_pdu_id(&event_id) {
return Ok(Some(pdu_id.to_vec()));
}
// 1. Check the server is in the room
let room_id = match value
.get("room_id")
.and_then(|id| RoomId::try_from(id.as_str()?).ok())
{
Some(id) => id,
None => {
// Event is invalid
return Err("Event needs a valid RoomId.".to_string());
}
};
match db.rooms.exists(&room_id) {
Ok(true) => {}
_ => {
@ -842,6 +856,11 @@ pub fn handle_incoming_pdu<'a>(
}
}
// 1. Skip the PDU if we already have it as a timeline event
if let Ok(Some(pdu_id)) = db.rooms.get_pdu_id(&event_id) {
return Ok(Some(pdu_id.to_vec()));
}
// We go through all the signatures we see on the value and fetch the corresponding signing
// keys
fetch_required_signing_keys(&value, &pub_key_map, db)
@ -901,7 +920,7 @@ pub fn handle_incoming_pdu<'a>(
// 5. Reject "due to auth events" if can't get all the auth events or some of the auth events are also rejected "due to auth events"
// EDIT: Step 5 is not applied anymore because it failed too often
debug!("Fetching auth events for {}", incoming_pdu.event_id);
fetch_and_handle_events(db, origin, &incoming_pdu.auth_events, pub_key_map)
fetch_and_handle_events(db, origin, &incoming_pdu.auth_events, &room_id, pub_key_map)
.await
.map_err(|e| e.to_string())?;
@ -1002,13 +1021,13 @@ pub fn handle_incoming_pdu<'a>(
if incoming_pdu.prev_events.len() == 1 {
let prev_event = &incoming_pdu.prev_events[0];
let state_vec = db
let state = db
.rooms
.pdu_shortstatehash(prev_event)
.map_err(|_| "Failed talking to db".to_owned())?
.map(|shortstatehash| db.rooms.state_full_ids(shortstatehash).ok())
.flatten();
if let Some(mut state_vec) = state_vec {
if let Some(mut state) = state {
if db
.rooms
.get_pdu(prev_event)
@ -1018,25 +1037,31 @@ pub fn handle_incoming_pdu<'a>(
.state_key
.is_some()
{
state_vec.push(prev_event.clone());
state.insert(prev_event.clone());
}
state_at_incoming_event = Some(
fetch_and_handle_events(db, origin, &state_vec, pub_key_map)
.await
.map_err(|_| "Failed to fetch state events locally".to_owned())?
.into_iter()
.map(|pdu| {
fetch_and_handle_events(
db,
origin,
&state.into_iter().collect::<Vec<_>>(),
&room_id,
pub_key_map,
)
.await
.map_err(|_| "Failed to fetch state events locally".to_owned())?
.into_iter()
.map(|pdu| {
(
(
(
pdu.kind.clone(),
pdu.state_key
.clone()
.expect("events from state_full_ids are state events"),
),
pdu,
)
})
.collect(),
pdu.kind.clone(),
pdu.state_key
.clone()
.expect("events from state_full_ids are state events"),
),
pdu,
)
})
.collect(),
);
}
// TODO: set incoming_auth_events?
@ -1059,12 +1084,18 @@ pub fn handle_incoming_pdu<'a>(
{
Ok(res) => {
debug!("Fetching state events at event.");
let state_vec =
match fetch_and_handle_events(&db, origin, &res.pdu_ids, pub_key_map).await
{
Ok(state) => state,
Err(_) => return Err("Failed to fetch state events.".to_owned()),
};
let state_vec = match fetch_and_handle_events(
&db,
origin,
&res.pdu_ids,
&room_id,
pub_key_map,
)
.await
{
Ok(state) => state,
Err(_) => return Err("Failed to fetch state events.".to_owned()),
};
let mut state = BTreeMap::new();
for pdu in state_vec {
@ -1090,8 +1121,14 @@ pub fn handle_incoming_pdu<'a>(
}
debug!("Fetching auth chain events at event.");
match fetch_and_handle_events(&db, origin, &res.auth_chain_ids, pub_key_map)
.await
match fetch_and_handle_events(
&db,
origin,
&res.auth_chain_ids,
&room_id,
pub_key_map,
)
.await
{
Ok(state) => state,
Err(_) => return Err("Failed to fetch auth chain.".to_owned()),
@ -1313,6 +1350,7 @@ pub(crate) fn fetch_and_handle_events<'a>(
db: &'a Database,
origin: &'a ServerName,
events: &'a [EventId],
room_id: &'a RoomId,
pub_key_map: &'a RwLock<BTreeMap<String, BTreeMap<String, String>>>,
) -> AsyncRecursiveResult<'a, Vec<Arc<PduEvent>>, Error> {
Box::pin(async move {
@ -1366,6 +1404,7 @@ pub(crate) fn fetch_and_handle_events<'a>(
match handle_incoming_pdu(
origin,
&event_id,
&room_id,
value.clone(),
false,
db,
@ -1854,7 +1893,11 @@ pub fn get_room_state_ids_route(
"Pdu state not found.",
))?;
let pdu_ids = db.rooms.state_full_ids(shortstatehash)?;
let pdu_ids = db
.rooms
.state_full_ids(shortstatehash)?
.into_iter()
.collect();
let mut auth_chain_ids = BTreeSet::<EventId>::new();
let mut todo = BTreeSet::new();
@ -2100,18 +2143,36 @@ pub async fn create_join_event_route(
)
.map_err(|_| Error::BadRequest(ErrorKind::InvalidParam, "Origin field is invalid."))?;
let pdu_id = handle_incoming_pdu(&origin, &event_id, value, true, &db, &pub_key_map)
.await
.map_err(|_| {
Error::BadRequest(
ErrorKind::InvalidParam,
"Error while handling incoming PDU.",
)
})?
.ok_or(Error::BadRequest(
let mutex = Arc::clone(
db.globals
.roomid_mutex
.write()
.unwrap()
.entry(body.room_id.clone())
.or_default(),
);
let mutex_lock = mutex.lock().await;
let pdu_id = handle_incoming_pdu(
&origin,
&event_id,
&body.room_id,
value,
true,
&db,
&pub_key_map,
)
.await
.map_err(|_| {
Error::BadRequest(
ErrorKind::InvalidParam,
"Could not accept incoming PDU as timeline event.",
))?;
"Error while handling incoming PDU.",
)
})?
.ok_or(Error::BadRequest(
ErrorKind::InvalidParam,
"Could not accept incoming PDU as timeline event.",
))?;
drop(mutex_lock);
let state_ids = db.rooms.state_full_ids(shortstatehash)?;