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feat: ask for backfill

This commit is contained in:
Timo Kösters 2023-02-20 22:59:45 +01:00
parent 23b18d71ee
commit 7bdd9660aa
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GPG Key ID: 0B25E636FBA7E4CB
12 changed files with 502 additions and 269 deletions
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33
src/api/client_server/context.rs
View File

@ -27,25 +27,24 @@ pub async fn get_context_route(
let mut lazy_loaded = HashSet::new();
let base_pdu_id = services()
let base_token = services()
.rooms
.timeline
.get_pdu_id(&body.event_id)?
.get_pdu_count(&body.event_id)?
.ok_or(Error::BadRequest(
ErrorKind::NotFound,
"Base event id not found.",
))?;
let base_token = services().rooms.timeline.pdu_count(&base_pdu_id)?;
let base_event = services()
.rooms
.timeline
.get_pdu_from_id(&base_pdu_id)?
.ok_or(Error::BadRequest(
ErrorKind::NotFound,
"Base event not found.",
))?;
let base_event =
services()
.rooms
.timeline
.get_pdu(&body.event_id)?
.ok_or(Error::BadRequest(
ErrorKind::NotFound,
"Base event not found.",
))?;
let room_id = base_event.room_id.clone();
@ -97,10 +96,7 @@ pub async fn get_context_route(
}
}
let start_token = events_before
.last()
.and_then(|(pdu_id, _)| services().rooms.timeline.pdu_count(pdu_id).ok())
.map(|count| count.to_string());
let start_token = events_before.last().map(|(count, _)| count.stringify());
let events_before: Vec<_> = events_before
.into_iter()
@ -151,10 +147,7 @@ pub async fn get_context_route(
.state_full_ids(shortstatehash)
.await?;
let end_token = events_after
.last()
.and_then(|(pdu_id, _)| services().rooms.timeline.pdu_count(pdu_id).ok())
.map(|count| count.to_string());
let end_token = events_after.last().map(|(count, _)| count.stringify());
let events_after: Vec<_> = events_after
.into_iter()

6
src/api/client_server/membership.rs
View File

@ -714,8 +714,10 @@ async fn join_room_by_id_helper(
.ok()?
},
)
.map_err(|_e| Error::BadRequest(ErrorKind::InvalidParam, "Auth check failed"))?
{
.map_err(|e| {
warn!("Auth check failed: {e}");
Error::BadRequest(ErrorKind::InvalidParam, "Auth check failed")
})? {
return Err(Error::BadRequest(
ErrorKind::InvalidParam,
"Auth check failed",

52
src/api/client_server/message.rs
View File

@ -1,4 +1,7 @@
use crate::{service::pdu::PduBuilder, services, utils, Error, Result, Ruma};
use crate::{
service::{pdu::PduBuilder, rooms::timeline::PduCount},
services, utils, Error, Result, Ruma,
};
use ruma::{
api::client::{
error::ErrorKind,
@ -122,17 +125,17 @@ pub async fn get_message_events_route(
}
let from = match body.from.clone() {
Some(from) => from
.parse()
.map_err(|_| Error::BadRequest(ErrorKind::InvalidParam, "Invalid `from` value."))?,
Some(from) => PduCount::try_from_string(&from)?,
None => match body.dir {
ruma::api::client::Direction::Forward => 0,
ruma::api::client::Direction::Backward => u64::MAX,
ruma::api::client::Direction::Forward => PduCount::min(),
ruma::api::client::Direction::Backward => PduCount::max(),
},
};
let to = body.to.as_ref().map(|t| t.parse());
let to = body
.to
.as_ref()
.and_then(|t| PduCount::try_from_string(&t).ok());
services().rooms.lazy_loading.lazy_load_confirm_delivery(
sender_user,
@ -158,15 +161,7 @@ pub async fn get_message_events_route(
.pdus_after(sender_user, &body.room_id, from)?
.take(limit)
.filter_map(|r| r.ok()) // Filter out buggy events
.filter_map(|(pdu_id, pdu)| {
services()
.rooms
.timeline
.pdu_count(&pdu_id)
.map(|pdu_count| (pdu_count, pdu))
.ok()
})
.take_while(|&(k, _)| Some(Ok(k)) != to) // Stop at `to`
.take_while(|&(k, _)| Some(k) != to) // Stop at `to`
.collect();
for (_, event) in &events_after {
@ -192,26 +187,23 @@ pub async fn get_message_events_route(
.map(|(_, pdu)| pdu.to_room_event())
.collect();
resp.start = from.to_string();
resp.end = next_token.map(|count| count.to_string());
resp.start = from.stringify();
resp.end = next_token.map(|count| count.stringify());
resp.chunk = events_after;
}
ruma::api::client::Direction::Backward => {
services()
.rooms
.timeline
.backfill_if_required(&body.room_id, from)
.await?;
let events_before: Vec<_> = services()
.rooms
.timeline
.pdus_until(sender_user, &body.room_id, from)?
.take(limit)
.filter_map(|r| r.ok()) // Filter out buggy events
.filter_map(|(pdu_id, pdu)| {
services()
.rooms
.timeline
.pdu_count(&pdu_id)
.map(|pdu_count| (pdu_count, pdu))
.ok()
})
.take_while(|&(k, _)| Some(Ok(k)) != to) // Stop at `to`
.take_while(|&(k, _)| Some(k) != to) // Stop at `to`
.collect();
for (_, event) in &events_before {
@ -237,8 +229,8 @@ pub async fn get_message_events_route(
.map(|(_, pdu)| pdu.to_room_event())
.collect();
resp.start = from.to_string();
resp.end = next_token.map(|count| count.to_string());
resp.start = from.stringify();
resp.end = next_token.map(|count| count.stringify());
resp.chunk = events_before;
}
}

60
src/api/client_server/read_marker.rs
View File

@ -1,4 +1,4 @@
use crate::{services, Error, Result, Ruma};
use crate::{service::rooms::timeline::PduCount, services, Error, Result, Ruma};
use ruma::{
api::client::{error::ErrorKind, read_marker::set_read_marker, receipt::create_receipt},
events::{
@ -42,18 +42,28 @@ pub async fn set_read_marker_route(
}
if let Some(event) = &body.private_read_receipt {
services().rooms.edus.read_receipt.private_read_set(
&body.room_id,
sender_user,
services()
.rooms
.timeline
.get_pdu_count(event)?
.ok_or(Error::BadRequest(
let count = services()
.rooms
.timeline
.get_pdu_count(event)?
.ok_or(Error::BadRequest(
ErrorKind::InvalidParam,
"Event does not exist.",
))?;
let count = match count {
PduCount::Backfilled(_) => {
return Err(Error::BadRequest(
ErrorKind::InvalidParam,
"Event does not exist.",
))?,
)?;
"Read receipt is in backfilled timeline",
))
}
PduCount::Normal(c) => c,
};
services()
.rooms
.edus
.read_receipt
.private_read_set(&body.room_id, sender_user, count)?;
}
if let Some(event) = &body.read_receipt {
@ -142,17 +152,27 @@ pub async fn create_receipt_route(
)?;
}
create_receipt::v3::ReceiptType::ReadPrivate => {
let count = services()
.rooms
.timeline
.get_pdu_count(&body.event_id)?
.ok_or(Error::BadRequest(
ErrorKind::InvalidParam,
"Event does not exist.",
))?;
let count = match count {
PduCount::Backfilled(_) => {
return Err(Error::BadRequest(
ErrorKind::InvalidParam,
"Read receipt is in backfilled timeline",
))
}
PduCount::Normal(c) => c,
};
services().rooms.edus.read_receipt.private_read_set(
&body.room_id,
sender_user,
services()
.rooms
.timeline
.get_pdu_count(&body.event_id)?
.ok_or(Error::BadRequest(
ErrorKind::InvalidParam,
"Event does not exist.",
))?,
count,
)?;
}
_ => return Err(Error::bad_database("Unsupported receipt type")),

34
src/api/client_server/sync.rs
View File

@ -1,4 +1,4 @@
use crate::{services, Error, Result, Ruma, RumaResponse};
use crate::{service::rooms::timeline::PduCount, services, Error, Result, Ruma, RumaResponse};
use ruma::{
api::client::{
filter::{FilterDefinition, LazyLoadOptions},
@ -172,6 +172,7 @@ async fn sync_helper(
let watcher = services().globals.watch(&sender_user, &sender_device);
let next_batch = services().globals.current_count()?;
let next_batchcount = PduCount::Normal(next_batch);
let next_batch_string = next_batch.to_string();
// Load filter
@ -197,6 +198,7 @@ async fn sync_helper(
.clone()
.and_then(|string| string.parse().ok())
.unwrap_or(0);
let sincecount = PduCount::Normal(since);
let mut presence_updates = HashMap::new();
let mut left_encrypted_users = HashSet::new(); // Users that have left any encrypted rooms the sender was in
@ -241,12 +243,12 @@ async fn sync_helper(
.rooms
.timeline
.last_timeline_count(&sender_user, &room_id)?
> since
> sincecount
{
let mut non_timeline_pdus = services()
.rooms
.timeline
.pdus_until(&sender_user, &room_id, u64::MAX)?
.pdus_until(&sender_user, &room_id, PduCount::max())?
.filter_map(|r| {
// Filter out buggy events
if r.is_err() {
@ -254,13 +256,7 @@ async fn sync_helper(
}
r.ok()
})
.take_while(|(pduid, _)| {
services()
.rooms
.timeline
.pdu_count(pduid)
.map_or(false, |count| count > since)
});
.take_while(|(pducount, _)| pducount > &sincecount);
// Take the last 10 events for the timeline
timeline_pdus = non_timeline_pdus
@ -295,7 +291,7 @@ async fn sync_helper(
&sender_user,
&sender_device,
&room_id,
since,
sincecount,
)?;
// Database queries:
@ -492,7 +488,7 @@ async fn sync_helper(
&sender_device,
&room_id,
lazy_loaded,
next_batch,
next_batchcount,
);
(
@ -582,7 +578,7 @@ async fn sync_helper(
&sender_device,
&room_id,
lazy_loaded,
next_batch,
next_batchcount,
);
let encrypted_room = services()
@ -711,10 +707,14 @@ async fn sync_helper(
let prev_batch = timeline_pdus
.first()
.map_or(Ok::<_, Error>(None), |(pdu_id, _)| {
Ok(Some(
services().rooms.timeline.pdu_count(pdu_id)?.to_string(),
))
.map_or(Ok::<_, Error>(None), |(pdu_count, _)| {
Ok(Some(match pdu_count {
PduCount::Backfilled(_) => {
error!("timeline in backfill state?!");
"0".to_owned()
}
PduCount::Normal(c) => c.to_string(),
}))
})?;
let room_events: Vec<_> = timeline_pdus

64
src/api/server_server.rs
View File

@ -629,6 +629,37 @@ pub async fn get_public_rooms_route(
})
}
pub fn parse_incoming_pdu(
pdu: &RawJsonValue,
) -> Result<(OwnedEventId, CanonicalJsonObject, OwnedRoomId)> {
let value: CanonicalJsonObject = serde_json::from_str(pdu.get()).map_err(|e| {
warn!("Error parsing incoming event {:?}: {:?}", pdu, e);
Error::BadServerResponse("Invalid PDU in server response")
})?;
let room_id: OwnedRoomId = value
.get("room_id")
.and_then(|id| RoomId::parse(id.as_str()?).ok())
.ok_or(Error::BadRequest(
ErrorKind::InvalidParam,
"Invalid room id in pdu",
))?;
let room_version_id = services().rooms.state.get_room_version(&room_id)?;
let (event_id, value) = match gen_event_id_canonical_json(&pdu, &room_version_id) {
Ok(t) => t,
Err(_) => {
// Event could not be converted to canonical json
return Err(Error::BadRequest(
ErrorKind::InvalidParam,
"Could not convert event to canonical json.",
));
}
};
Ok((event_id, value, room_id))
}
/// # `PUT /_matrix/federation/v1/send/{txnId}`
///
/// Push EDUs and PDUs to this server.
@ -657,36 +688,7 @@ pub async fn send_transaction_message_route(
// let mut auth_cache = EventMap::new();
for pdu in &body.pdus {
let value: CanonicalJsonObject = serde_json::from_str(pdu.get()).map_err(|e| {
warn!("Error parsing incoming event {:?}: {:?}", pdu, e);
Error::BadServerResponse("Invalid PDU in server response")
})?;
let room_id: OwnedRoomId = match value
.get("room_id")
.and_then(|id| RoomId::parse(id.as_str()?).ok())
{
Some(id) => id,
None => {
// Event is invalid
continue;
}
};
let room_version_id = match services().rooms.state.get_room_version(&room_id) {
Ok(v) => v,
Err(_) => {
continue;
}
};
let (event_id, value) = match gen_event_id_canonical_json(pdu, &room_version_id) {
Ok(t) => t,
Err(_) => {
// Event could not be converted to canonical json
continue;
}
};
let (event_id, value, room_id) = parse_incoming_pdu(&pdu)?;
// We do not add the event_id field to the pdu here because of signature and hashes checks
services()
@ -1017,7 +1019,7 @@ pub async fn get_backfill_route(
Ok(true),
)
})
.map(|(pdu_id, _)| services().rooms.timeline.get_pdu_json_from_id(&pdu_id))
.map(|(_, pdu)| services().rooms.timeline.get_pdu_json(&pdu.event_id))
.filter_map(|r| r.ok().flatten())
.map(|pdu| PduEvent::convert_to_outgoing_federation_event(pdu))
.collect();

237
src/database/key_value/rooms/timeline.rs
View File

@ -7,6 +7,8 @@ use tracing::error;
use crate::{database::KeyValueDatabase, service, services, utils, Error, PduEvent, Result};
use service::rooms::timeline::PduCount;
impl service::rooms::timeline::Data for KeyValueDatabase {
fn first_pdu_in_room(&self, room_id: &RoomId) -> Result<Option<Arc<PduEvent>>> {
let prefix = services()
@ -30,7 +32,7 @@ impl service::rooms::timeline::Data for KeyValueDatabase {
.transpose()
}
fn last_timeline_count(&self, sender_user: &UserId, room_id: &RoomId) -> Result<u64> {
fn last_timeline_count(&self, sender_user: &UserId, room_id: &RoomId) -> Result<PduCount> {
match self
.lasttimelinecount_cache
.lock()
@ -39,20 +41,18 @@ impl service::rooms::timeline::Data for KeyValueDatabase {
{
hash_map::Entry::Vacant(v) => {
if let Some(last_count) = self
.pdus_until(sender_user, room_id, u64::MAX)?
.filter_map(|r| {
.pdus_until(sender_user, room_id, PduCount::max())?
.find_map(|r| {
// Filter out buggy events
if r.is_err() {
error!("Bad pdu in pdus_since: {:?}", r);
}
r.ok()
})
.map(|(pduid, _)| self.pdu_count(&pduid))
.next()
{
Ok(*v.insert(last_count?))
Ok(*v.insert(last_count.0))
} else {
Ok(0)
Ok(PduCount::Normal(0))
}
}
hash_map::Entry::Occupied(o) => Ok(*o.get()),
@ -60,11 +60,23 @@ impl service::rooms::timeline::Data for KeyValueDatabase {
}
/// Returns the `count` of this pdu's id.
fn get_pdu_count(&self, event_id: &EventId) -> Result<Option<u64>> {
self.eventid_pduid
fn get_pdu_count(&self, event_id: &EventId) -> Result<Option<PduCount>> {
Ok(self
.eventid_pduid
.get(event_id.as_bytes())?
.map(|pdu_id| self.pdu_count(&pdu_id))
.transpose()
.map(|pdu_id| Ok::<_, Error>(PduCount::Normal(pdu_count(&pdu_id)?)))
.transpose()?
.map_or_else(
|| {
Ok::<_, Error>(
self.eventid_backfillpduid
.get(event_id.as_bytes())?
.map(|pdu_id| Ok::<_, Error>(PduCount::Backfilled(pdu_count(&pdu_id)?)))
.transpose()?,
)
},
|x| Ok(Some(x)),
)?)
}
/// Returns the json of a pdu.
@ -182,12 +194,6 @@ impl service::rooms::timeline::Data for KeyValueDatabase {
})
}
/// Returns the `count` of this pdu's id.
fn pdu_count(&self, pdu_id: &[u8]) -> Result<u64> {
utils::u64_from_bytes(&pdu_id[pdu_id.len() - size_of::<u64>()..])
.map_err(|_| Error::bad_database("PDU has invalid count bytes."))
}
fn append_pdu(
&self,
pdu_id: &[u8],
@ -203,7 +209,7 @@ impl service::rooms::timeline::Data for KeyValueDatabase {
self.lasttimelinecount_cache
.lock()
.unwrap()
.insert(pdu.room_id.clone(), count);
.insert(pdu.room_id.clone(), PduCount::Normal(count));
self.eventid_pduid.insert(pdu.event_id.as_bytes(), pdu_id)?;
self.eventid_outlierpdu.remove(pdu.event_id.as_bytes())?;
@ -211,6 +217,24 @@ impl service::rooms::timeline::Data for KeyValueDatabase {
Ok(())
}
fn prepend_backfill_pdu(
&self,
pdu_id: &[u8],
event_id: &EventId,
json: &CanonicalJsonObject,
) -> Result<()> {
self.pduid_backfillpdu.insert(
pdu_id,
&serde_json::to_vec(json).expect("CanonicalJsonObject is always a valid"),
)?;
self.eventid_backfillpduid
.insert(event_id.as_bytes(), pdu_id)?;
self.eventid_outlierpdu.remove(event_id.as_bytes())?;
Ok(())
}
/// Removes a pdu and creates a new one with the same id.
fn replace_pdu(&self, pdu_id: &[u8], pdu: &PduEvent) -> Result<()> {
if self.pduid_pdu.get(pdu_id)?.is_some() {
@ -227,51 +251,14 @@ impl service::rooms::timeline::Data for KeyValueDatabase {
}
}
/// Returns an iterator over all events in a room that happened after the event with id `since`
/// in chronological order.
fn pdus_since<'a>(
&'a self,
user_id: &UserId,
room_id: &RoomId,
since: u64,
) -> Result<Box<dyn Iterator<Item = Result<(Vec<u8>, PduEvent)>> + 'a>> {
let prefix = services()
.rooms
.short
.get_shortroomid(room_id)?
.expect("room exists")
.to_be_bytes()
.to_vec();
// Skip the first pdu if it's exactly at since, because we sent that last time
let mut first_pdu_id = prefix.clone();
first_pdu_id.extend_from_slice(&(since + 1).to_be_bytes());
let user_id = user_id.to_owned();
Ok(Box::new(
self.pduid_pdu
.iter_from(&first_pdu_id, false)
.take_while(move |(k, _)| k.starts_with(&prefix))
.map(move |(pdu_id, v)| {
let mut pdu = serde_json::from_slice::<PduEvent>(&v)
.map_err(|_| Error::bad_database("PDU in db is invalid."))?;
if pdu.sender != user_id {
pdu.remove_transaction_id()?;
}
Ok((pdu_id, pdu))
}),
))
}
/// Returns an iterator over all events and their tokens in a room that happened before the
/// event with id `until` in reverse-chronological order.
fn pdus_until<'a>(
&'a self,
user_id: &UserId,
room_id: &RoomId,
until: u64,
) -> Result<Box<dyn Iterator<Item = Result<(Vec<u8>, PduEvent)>> + 'a>> {
until: PduCount,
) -> Result<Box<dyn Iterator<Item = Result<(PduCount, PduEvent)>> + 'a>> {
// Create the first part of the full pdu id
let prefix = services()
.rooms
@ -281,34 +268,63 @@ impl service::rooms::timeline::Data for KeyValueDatabase {
.to_be_bytes()
.to_vec();
let mut current = prefix.clone();
current.extend_from_slice(&(until.saturating_sub(1)).to_be_bytes()); // -1 because we don't want event at `until`
let current: &[u8] = &current;
let mut current_backfill = prefix.clone();
// +1 so we don't send the base event
let backfill_count = match until {
PduCount::Backfilled(x) => x + 1,
PduCount::Normal(_) => 0,
};
current_backfill.extend_from_slice(&backfill_count.to_be_bytes());
let user_id = user_id.to_owned();
let user_id2 = user_id.to_owned();
let prefix2 = prefix.clone();
Ok(Box::new(
self.pduid_pdu
.iter_from(current, true)
.take_while(move |(k, _)| k.starts_with(&prefix))
.map(move |(pdu_id, v)| {
let mut pdu = serde_json::from_slice::<PduEvent>(&v)
.map_err(|_| Error::bad_database("PDU in db is invalid."))?;
if pdu.sender != user_id {
pdu.remove_transaction_id()?;
}
Ok((pdu_id, pdu))
}),
))
let backfill_iter = self
.pduid_backfillpdu
.iter_from(&current_backfill, false)
.take_while(move |(k, _)| k.starts_with(&prefix))
.map(move |(pdu_id, v)| {
let mut pdu = serde_json::from_slice::<PduEvent>(&v)
.map_err(|_| Error::bad_database("PDU in db is invalid."))?;
if pdu.sender != user_id {
pdu.remove_transaction_id()?;
}
let count = PduCount::Backfilled(pdu_count(&pdu_id)?);
Ok((count, pdu))
});
match until {
PduCount::Backfilled(_) => Ok(Box::new(backfill_iter)),
PduCount::Normal(x) => {
let mut current_normal = prefix2.clone();
// -1 so we don't send the base event
current_normal.extend_from_slice(&x.saturating_sub(1).to_be_bytes());
let normal_iter = self
.pduid_pdu
.iter_from(&current_normal, true)
.take_while(move |(k, _)| k.starts_with(&prefix2))
.map(move |(pdu_id, v)| {
let mut pdu = serde_json::from_slice::<PduEvent>(&v)
.map_err(|_| Error::bad_database("PDU in db is invalid."))?;
if pdu.sender != user_id2 {
pdu.remove_transaction_id()?;
}
let count = PduCount::Normal(pdu_count(&pdu_id)?);
Ok((count, pdu))
});
Ok(Box::new(normal_iter.chain(backfill_iter)))
}
}
}
fn pdus_after<'a>(
&'a self,
user_id: &UserId,
room_id: &RoomId,
from: u64,
) -> Result<Box<dyn Iterator<Item = Result<(Vec<u8>, PduEvent)>> + 'a>> {
from: PduCount,
) -> Result<Box<dyn Iterator<Item = Result<(PduCount, PduEvent)>> + 'a>> {
// Create the first part of the full pdu id
let prefix = services()
.rooms
@ -318,26 +334,55 @@ impl service::rooms::timeline::Data for KeyValueDatabase {
.to_be_bytes()
.to_vec();
let mut current = prefix.clone();
current.extend_from_slice(&(from + 1).to_be_bytes()); // +1 so we don't send the base event
let current: &[u8] = &current;
let mut current_normal = prefix.clone();
// +1 so we don't send the base event
let normal_count = match from {
PduCount::Normal(x) => x + 1,
PduCount::Backfilled(_) => 0,
};
current_normal.extend_from_slice(&normal_count.to_be_bytes());
let user_id = user_id.to_owned();
let user_id2 = user_id.to_owned();
let prefix2 = prefix.clone();
Ok(Box::new(
self.pduid_pdu
.iter_from(current, false)
.take_while(move |(k, _)| k.starts_with(&prefix))
.map(move |(pdu_id, v)| {
let mut pdu = serde_json::from_slice::<PduEvent>(&v)
.map_err(|_| Error::bad_database("PDU in db is invalid."))?;
if pdu.sender != user_id {
pdu.remove_transaction_id()?;
}
Ok((pdu_id, pdu))
}),
))
let normal_iter = self
.pduid_pdu
.iter_from(&current_normal, false)
.take_while(move |(k, _)| k.starts_with(&prefix))
.map(move |(pdu_id, v)| {
let mut pdu = serde_json::from_slice::<PduEvent>(&v)
.map_err(|_| Error::bad_database("PDU in db is invalid."))?;
if pdu.sender != user_id {
pdu.remove_transaction_id()?;
}
let count = PduCount::Normal(pdu_count(&pdu_id)?);
Ok((count, pdu))
});
match from {
PduCount::Normal(_) => Ok(Box::new(normal_iter)),
PduCount::Backfilled(x) => {
let mut current_backfill = prefix2.clone();
// -1 so we don't send the base event
current_backfill.extend_from_slice(&x.saturating_sub(1).to_be_bytes());
let backfill_iter = self
.pduid_backfillpdu
.iter_from(&current_backfill, true)
.take_while(move |(k, _)| k.starts_with(&prefix2))
.map(move |(pdu_id, v)| {
let mut pdu = serde_json::from_slice::<PduEvent>(&v)
.map_err(|_| Error::bad_database("PDU in db is invalid."))?;
if pdu.sender != user_id2 {
pdu.remove_transaction_id()?;
}
let count = PduCount::Backfilled(pdu_count(&pdu_id)?);
Ok((count, pdu))
});
Ok(Box::new(backfill_iter.chain(normal_iter)))
}
}
}
fn increment_notification_counts(
@ -368,3 +413,9 @@ impl service::rooms::timeline::Data for KeyValueDatabase {
Ok(())
}
}
/// Returns the `count` of this pdu's id.
fn pdu_count(pdu_id: &[u8]) -> Result<u64> {
utils::u64_from_bytes(&pdu_id[pdu_id.len() - size_of::<u64>()..])
.map_err(|_| Error::bad_database("PDU has invalid count bytes."))
}

11
src/database/mod.rs
View File

@ -1,7 +1,10 @@
pub mod abstraction;
pub mod key_value;
use crate::{services, utils, Config, Error, PduEvent, Result, Services, SERVICES};
use crate::{
service::rooms::timeline::PduCount, services, utils, Config, Error, PduEvent, Result, Services,
SERVICES,
};
use abstraction::{KeyValueDatabaseEngine, KvTree};
use directories::ProjectDirs;
use lru_cache::LruCache;
@ -71,7 +74,9 @@ pub struct KeyValueDatabase {
//pub rooms: rooms::Rooms,
pub(super) pduid_pdu: Arc<dyn KvTree>, // PduId = ShortRoomId + Count
pub(super) pduid_backfillpdu: Arc<dyn KvTree>, // PduId = ShortRoomId + Count
pub(super) eventid_pduid: Arc<dyn KvTree>,
pub(super) eventid_backfillpduid: Arc<dyn KvTree>,
pub(super) roomid_pduleaves: Arc<dyn KvTree>,
pub(super) alias_roomid: Arc<dyn KvTree>,
pub(super) aliasid_alias: Arc<dyn KvTree>, // AliasId = RoomId + Count
@ -161,7 +166,7 @@ pub struct KeyValueDatabase {
pub(super) shortstatekey_cache: Mutex<LruCache<u64, (StateEventType, String)>>,
pub(super) our_real_users_cache: RwLock<HashMap<OwnedRoomId, Arc<HashSet<OwnedUserId>>>>,
pub(super) appservice_in_room_cache: RwLock<HashMap<OwnedRoomId, HashMap<String, bool>>>,
pub(super) lasttimelinecount_cache: Mutex<HashMap<OwnedRoomId, u64>>,
pub(super) lasttimelinecount_cache: Mutex<HashMap<OwnedRoomId, PduCount>>,
}
impl KeyValueDatabase {
@ -292,7 +297,9 @@ impl KeyValueDatabase {
presenceid_presence: builder.open_tree("presenceid_presence")?,
userid_lastpresenceupdate: builder.open_tree("userid_lastpresenceupdate")?,
pduid_pdu: builder.open_tree("pduid_pdu")?,
pduid_backfillpdu: builder.open_tree("pduid_backfillpdu")?,
eventid_pduid: builder.open_tree("eventid_pduid")?,
eventid_backfillpduid: builder.open_tree("eventid_backfillpduid")?,
roomid_pduleaves: builder.open_tree("roomid_pduleaves")?,
alias_roomid: builder.open_tree("alias_roomid")?,

8
src/service/rooms/lazy_loading/mod.rs
View File

@ -9,11 +9,13 @@ use ruma::{DeviceId, OwnedDeviceId, OwnedRoomId, OwnedUserId, RoomId, UserId};
use crate::Result;
use super::timeline::PduCount;
pub struct Service {
pub db: &'static dyn Data,
pub lazy_load_waiting:
Mutex<HashMap<(OwnedUserId, OwnedDeviceId, OwnedRoomId, u64), HashSet<OwnedUserId>>>,
Mutex<HashMap<(OwnedUserId, OwnedDeviceId, OwnedRoomId, PduCount), HashSet<OwnedUserId>>>,
}
impl Service {
@ -36,7 +38,7 @@ impl Service {
device_id: &DeviceId,
room_id: &RoomId,
lazy_load: HashSet<OwnedUserId>,
count: u64,
count: PduCount,
) {
self.lazy_load_waiting.lock().unwrap().insert(
(
@ -55,7 +57,7 @@ impl Service {
user_id: &UserId,
device_id: &DeviceId,
room_id: &RoomId,
since: u64,
since: PduCount,
) -> Result<()> {
if let Some(user_ids) = self.lazy_load_waiting.lock().unwrap().remove(&(
user_id.to_owned(),

2
src/service/rooms/state_accessor/mod.rs
View File

@ -14,7 +14,7 @@ use ruma::{
},
StateEventType,
},
EventId, OwnedServerName, OwnedUserId, RoomId, ServerName, UserId,
EventId, OwnedServerName, RoomId, ServerName, UserId,
};
use tracing::error;

36
src/service/rooms/timeline/data.rs
View File

@ -4,12 +4,14 @@ use ruma::{CanonicalJsonObject, EventId, OwnedUserId, RoomId, UserId};
use crate::{PduEvent, Result};
use super::PduCount;
pub trait Data: Send + Sync {
fn first_pdu_in_room(&self, room_id: &RoomId) -> Result<Option<Arc<PduEvent>>>;
fn last_timeline_count(&self, sender_user: &UserId, room_id: &RoomId) -> Result<u64>;
fn last_timeline_count(&self, sender_user: &UserId, room_id: &RoomId) -> Result<PduCount>;
/// Returns the `count` of this pdu's id.
fn get_pdu_count(&self, event_id: &EventId) -> Result<Option<u64>>;
fn get_pdu_count(&self, event_id: &EventId) -> Result<Option<PduCount>>;
/// Returns the json of a pdu.
fn get_pdu_json(&self, event_id: &EventId) -> Result<Option<CanonicalJsonObject>>;
@ -38,9 +40,6 @@ pub trait Data: Send + Sync {
/// Returns the pdu as a `BTreeMap<String, CanonicalJsonValue>`.
fn get_pdu_json_from_id(&self, pdu_id: &[u8]) -> Result<Option<CanonicalJsonObject>>;
/// Returns the `count` of this pdu's id.
fn pdu_count(&self, pdu_id: &[u8]) -> Result<u64>;
/// Adds a new pdu to the timeline
fn append_pdu(
&self,
@ -50,33 +49,34 @@ pub trait Data: Send + Sync {
count: u64,
) -> Result<()>;
// Adds a new pdu to the backfilled timeline
fn prepend_backfill_pdu(
&self,
pdu_id: &[u8],
event_id: &EventId,
json: &CanonicalJsonObject,
) -> Result<()>;
/// Removes a pdu and creates a new one with the same id.
fn replace_pdu(&self, pdu_id: &[u8], pdu: &PduEvent) -> Result<()>;
/// Returns an iterator over all events in a room that happened after the event with id `since`
/// in chronological order.
fn pdus_since<'a>(
&'a self,
user_id: &UserId,
room_id: &RoomId,
since: u64,
) -> Result<Box<dyn Iterator<Item = Result<(Vec<u8>, PduEvent)>> + 'a>>;
/// Returns an iterator over all events and their tokens in a room that happened before the
/// event with id `until` in reverse-chronological order.
fn pdus_until<'a>(
&'a self,
user_id: &UserId,
room_id: &RoomId,
until: u64,
) -> Result<Box<dyn Iterator<Item = Result<(Vec<u8>, PduEvent)>> + 'a>>;
until: PduCount,
) -> Result<Box<dyn Iterator<Item = Result<(PduCount, PduEvent)>> + 'a>>;
/// Returns an iterator over all events in a room that happened after the event with id `from`
/// in chronological order.
fn pdus_after<'a>(
&'a self,
user_id: &UserId,
room_id: &RoomId,
from: u64,
) -> Result<Box<dyn Iterator<Item = Result<(Vec<u8>, PduEvent)>> + 'a>>;
from: PduCount,
) -> Result<Box<dyn Iterator<Item = Result<(PduCount, PduEvent)>> + 'a>>;
fn increment_notification_counts(
&self,

228
src/service/rooms/timeline/mod.rs
View File

@ -1,7 +1,9 @@
mod data;
use std::collections::HashMap;
use std::cmp::Ordering;
use std::collections::{BTreeMap, HashMap};
use std::sync::RwLock;
use std::{
collections::HashSet,
sync::{Arc, Mutex},
@ -9,6 +11,8 @@ use std::{
pub use data::Data;
use regex::Regex;
use ruma::api::federation;
use ruma::serde::Base64;
use ruma::{
api::client::error::ErrorKind,
canonical_json::to_canonical_value,
@ -27,11 +31,13 @@ use ruma::{
uint, CanonicalJsonObject, CanonicalJsonValue, EventId, OwnedEventId, OwnedRoomId,
OwnedServerName, RoomAliasId, RoomId, UserId,
};
use ruma::{user_id, ServerName};
use serde::Deserialize;
use serde_json::value::to_raw_value;
use serde_json::value::{to_raw_value, RawValue as RawJsonValue};
use tokio::sync::MutexGuard;
use tracing::{error, warn};
use tracing::{error, info, warn};
use crate::api::server_server;
use crate::{
service::pdu::{EventHash, PduBuilder},
services, utils, Error, PduEvent, Result,
@ -39,10 +45,70 @@ use crate::{
use super::state_compressor::CompressedStateEvent;
#[derive(Hash, PartialEq, Eq, Clone, Copy, Debug)]
pub enum PduCount {
Backfilled(u64),
Normal(u64),
}
impl PduCount {
pub fn min() -> Self {
Self::Backfilled(u64::MAX)
}
pub fn max() -> Self {
Self::Normal(u64::MAX)
}
pub fn try_from_string(token: &str) -> Result<Self> {
if token.starts_with('-') {
token[1..].parse().map(PduCount::Backfilled)
} else {
token.parse().map(PduCount::Normal)
}
.map_err(|_| Error::BadRequest(ErrorKind::InvalidParam, "Invalid pagination token."))
}
pub fn stringify(&self) -> String {
match self {
PduCount::Backfilled(x) => format!("-{x}"),
PduCount::Normal(x) => x.to_string(),
}
}
}
impl PartialOrd for PduCount {
fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
Some(self.cmp(other))
}
}
impl Ord for PduCount {
fn cmp(&self, other: &Self) -> Ordering {
match (self, other) {
(PduCount::Normal(s), PduCount::Normal(o)) => s.cmp(o),
(PduCount::Backfilled(s), PduCount::Backfilled(o)) => o.cmp(s),
(PduCount::Normal(_), PduCount::Backfilled(_)) => Ordering::Greater,
(PduCount::Backfilled(_), PduCount::Normal(_)) => Ordering::Less,
}
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn comparisons() {
assert!(PduCount::Normal(1) < PduCount::Normal(2));
assert!(PduCount::Backfilled(2) < PduCount::Backfilled(1));
assert!(PduCount::Normal(1) > PduCount::Backfilled(1));
assert!(PduCount::Backfilled(1) < PduCount::Normal(1));
}
}
pub struct Service {
pub db: &'static dyn Data,
pub lasttimelinecount_cache: Mutex<HashMap<OwnedRoomId, u64>>,
pub lasttimelinecount_cache: Mutex<HashMap<OwnedRoomId, PduCount>>,
}
impl Service {
@ -52,10 +118,15 @@ impl Service {
}
#[tracing::instrument(skip(self))]
pub fn last_timeline_count(&self, sender_user: &UserId, room_id: &RoomId) -> Result<u64> {
pub fn last_timeline_count(&self, sender_user: &UserId, room_id: &RoomId) -> Result<PduCount> {
self.db.last_timeline_count(sender_user, room_id)
}
/// Returns the `count` of this pdu's id.
pub fn get_pdu_count(&self, event_id: &EventId) -> Result<Option<PduCount>> {
self.db.get_pdu_count(event_id)
}
// TODO Is this the same as the function above?
/*
#[tracing::instrument(skip(self))]
@ -79,11 +150,6 @@ impl Service {
}
*/
/// Returns the `count` of this pdu's id.
pub fn get_pdu_count(&self, event_id: &EventId) -> Result<Option<u64>> {
self.db.get_pdu_count(event_id)
}
/// Returns the json of a pdu.
pub fn get_pdu_json(&self, event_id: &EventId) -> Result<Option<CanonicalJsonObject>> {
self.db.get_pdu_json(event_id)
@ -128,11 +194,6 @@ impl Service {
self.db.get_pdu_json_from_id(pdu_id)
}
/// Returns the `count` of this pdu's id.
pub fn pdu_count(&self, pdu_id: &[u8]) -> Result<u64> {
self.db.pdu_count(pdu_id)
}
/// Removes a pdu and creates a new one with the same id.
#[tracing::instrument(skip(self))]
fn replace_pdu(&self, pdu_id: &[u8], pdu: &PduEvent) -> Result<()> {
@ -863,19 +924,8 @@ impl Service {
&'a self,
user_id: &UserId,
room_id: &RoomId,
) -> Result<impl Iterator<Item = Result<(Vec<u8>, PduEvent)>> + 'a> {
self.pdus_since(user_id, room_id, 0)
}
/// Returns an iterator over all events in a room that happened after the event with id `since`
/// in chronological order.
pub fn pdus_since<'a>(
&'a self,
user_id: &UserId,
room_id: &RoomId,
since: u64,
) -> Result<impl Iterator<Item = Result<(Vec<u8>, PduEvent)>> + 'a> {
self.db.pdus_since(user_id, room_id, since)
) -> Result<impl Iterator<Item = Result<(PduCount, PduEvent)>> + 'a> {
self.pdus_after(user_id, room_id, PduCount::min())
}
/// Returns an iterator over all events and their tokens in a room that happened before the
@ -885,8 +935,8 @@ impl Service {
&'a self,
user_id: &UserId,
room_id: &RoomId,
until: u64,
) -> Result<impl Iterator<Item = Result<(Vec<u8>, PduEvent)>> + 'a> {
until: PduCount,
) -> Result<impl Iterator<Item = Result<(PduCount, PduEvent)>> + 'a> {
self.db.pdus_until(user_id, room_id, until)
}
@ -897,8 +947,8 @@ impl Service {
&'a self,
user_id: &UserId,
room_id: &RoomId,
from: u64,
) -> Result<impl Iterator<Item = Result<(Vec<u8>, PduEvent)>> + 'a> {
from: PduCount,
) -> Result<impl Iterator<Item = Result<(PduCount, PduEvent)>> + 'a> {
self.db.pdus_after(user_id, room_id, from)
}
@ -915,4 +965,118 @@ impl Service {
// If event does not exist, just noop
Ok(())
}
#[tracing::instrument(skip(self, room_id))]
pub async fn backfill_if_required(&self, room_id: &RoomId, from: PduCount) -> Result<()> {
let first_pdu = self
.all_pdus(&user_id!("@doesntmatter:conduit.rs"), &room_id)?
.next()
.expect("Room is not empty")?;
if first_pdu.0 < from {
// No backfill required, there are still events between them
return Ok(());
}
let power_levels: RoomPowerLevelsEventContent = services()
.rooms
.state_accessor
.room_state_get(&room_id, &StateEventType::RoomPowerLevels, "")?
.map(|ev| {
serde_json::from_str(ev.content.get())
.map_err(|_| Error::bad_database("invalid m.room.power_levels event"))
})
.transpose()?
.unwrap_or_default();
let mut admin_servers = power_levels
.users
.iter()
.filter(|(_, level)| **level > power_levels.users_default)
.map(|(user_id, _)| user_id.server_name())
.collect::<HashSet<_>>();
admin_servers.remove(services().globals.server_name());
// Request backfill
for backfill_server in admin_servers {
info!("Asking {backfill_server} for backfill");
let response = services()
.sending
.send_federation_request(
backfill_server,
federation::backfill::get_backfill::v1::Request {
room_id: room_id.to_owned(),
v: vec![first_pdu.1.event_id.as_ref().to_owned()],
limit: uint!(100),
},
)
.await;
match response {
Ok(response) => {
let mut pub_key_map = RwLock::new(BTreeMap::new());
for pdu in response.pdus {
if let Err(e) = self
.backfill_pdu(backfill_server, pdu, &mut pub_key_map)
.await
{
warn!("Failed to add backfilled pdu: {e}");
}
}
return Ok(());
}
Err(e) => {
warn!("{backfill_server} could not provide backfill: {e}");
}
}
}
info!("No servers could backfill");
Ok(())
}
#[tracing::instrument(skip(self, pdu))]
pub async fn backfill_pdu(
&self,
origin: &ServerName,
pdu: Box<RawJsonValue>,
pub_key_map: &RwLock<BTreeMap<String, BTreeMap<String, Base64>>>,
) -> Result<()> {
let (event_id, value, room_id) = server_server::parse_incoming_pdu(&pdu)?;
services()
.rooms
.event_handler
.handle_incoming_pdu(origin, &event_id, &room_id, value, false, &pub_key_map)
.await?;
let value = self.get_pdu_json(&event_id)?.expect("We just created it");
let shortroomid = services()
.rooms
.short
.get_shortroomid(&room_id)?
.expect("room exists");
let mutex_insert = Arc::clone(
services()
.globals
.roomid_mutex_insert
.write()
.unwrap()
.entry(room_id.clone())
.or_default(),
);
let insert_lock = mutex_insert.lock().unwrap();
let count = services().globals.next_count()?;
let mut pdu_id = shortroomid.to_be_bytes().to_vec();
pdu_id.extend_from_slice(&count.to_be_bytes());
// Insert pdu
self.db.prepend_backfill_pdu(&pdu_id, &event_id, &value)?;
drop(insert_lock);
info!("Appended incoming pdu");
Ok(())
}
}