Newer
Older
client_server,
pdu::{PduBuilder, PduEvent},
server_server, utils, ConduitResult, Database, Error, Result, Ruma,
api::{
client::{
error::ErrorKind,
r0::membership::{
ban_user, forget_room, get_member_events, invite_user, join_room_by_id,
join_room_by_id_or_alias, joined_members, joined_rooms, kick_user, leave_room,
unban_user, IncomingThirdPartySigned,
EventId, Raw, RoomId, RoomVersionId, ServerName, UserId,
use state_res::StateEvent;
use std::{
collections::BTreeMap, collections::HashMap, collections::HashSet, convert::TryFrom, sync::Arc,
};
#[cfg(feature = "conduit_bin")]
use rocket::{get, post};
#[cfg_attr(
feature = "conduit_bin",
post("/_matrix/client/r0/rooms/<_>/join", data = "<body>")
)]
pub async fn join_room_by_id_route(
) -> ConduitResult<join_room_by_id::Response> {
join_room_by_id_helper(
&db,
body.sender_id.as_ref(),
&body.room_id,
&[body.room_id.server_name().to_owned()],
body.third_party_signed.as_ref(),
)
.await
}
#[cfg_attr(
feature = "conduit_bin",
post("/_matrix/client/r0/join/<_>", data = "<body>")
)]
pub async fn join_room_by_id_or_alias_route(
) -> ConduitResult<join_room_by_id_or_alias::Response> {
let (servers, room_id) = match RoomId::try_from(body.room_id_or_alias.clone()) {
Ok(room_id) => (vec![room_id.server_name().to_owned()], room_id),
let response = client_server::get_alias_helper(&db, &room_alias).await?;
(response.0.servers, response.0.room_id)
Ok(join_room_by_id_or_alias::Response {
room_id: join_room_by_id_helper(
body.sender_id.as_ref(),
&room_id,
body.third_party_signed.as_ref(),
)
.await?
.0
.room_id,
}
.into())
}
#[cfg_attr(
feature = "conduit_bin",
post("/_matrix/client/r0/rooms/<_>/leave", data = "<body>")
)]
) -> ConduitResult<leave_room::Response> {
let sender_id = body.sender_id.as_ref().expect("user is authenticated");
let mut event = serde_json::from_value::<Raw<member::MemberEventContent>>(
db.rooms
.room_state_get(
&body.room_id,
&EventType::RoomMember,
&sender_id.to_string(),
)?
.ok_or(Error::BadRequest(
ErrorKind::BadState,
"Cannot leave a room you are not a member of.",
))?
.content,
)
.expect("from_value::<Raw<..>> can never fail")
.deserialize()
.map_err(|_| Error::bad_database("Invalid member event in database."))?;
event.membership = member::MembershipState::Leave;
db.rooms
.build_and_append_pdu(
PduBuilder {
event_type: EventType::RoomMember,
content: serde_json::to_value(event).expect("event is valid, we just created it"),
unsigned: None,
state_key: Some(sender_id.to_string()),
redacts: None,
},
&sender_id,
&body.room_id,
&db.globals,
&db.account_data,
)
.await?;
Ok(leave_room::Response::new().into())
}
#[cfg_attr(
feature = "conduit_bin",
post("/_matrix/client/r0/rooms/<_>/invite", data = "<body>")
)]
) -> ConduitResult<invite_user::Response> {
let sender_id = body.sender_id.as_ref().expect("user is authenticated");
if let invite_user::IncomingInvitationRecipient::UserId { user_id } = &body.recipient {
db.rooms
.build_and_append_pdu(
PduBuilder {
event_type: EventType::RoomMember,
content: serde_json::to_value(member::MemberEventContent {
membership: member::MembershipState::Invite,
displayname: db.users.displayname(&user_id)?,
avatar_url: db.users.avatar_url(&user_id)?,
is_direct: None,
third_party_invite: None,
})
.expect("event is valid, we just created it"),
unsigned: None,
state_key: Some(user_id.to_string()),
redacts: None,
},
&sender_id,
&body.room_id,
&db.globals,
&db.account_data,
)
.await?;
Ok(invite_user::Response.into())
} else {
Err(Error::BadRequest(ErrorKind::NotFound, "User not found."))
}
}
#[cfg_attr(
feature = "conduit_bin",
post("/_matrix/client/r0/rooms/<_>/kick", data = "<body>")
)]
) -> ConduitResult<kick_user::Response> {
let sender_id = body.sender_id.as_ref().expect("user is authenticated");
let mut event = serde_json::from_value::<Raw<ruma::events::room::member::MemberEventContent>>(
db.rooms
.room_state_get(
&body.room_id,
&EventType::RoomMember,
&body.user_id.to_string(),
)?
.ok_or(Error::BadRequest(
ErrorKind::BadState,
"Cannot kick member that's not in the room.",
))?
.content,
)
.expect("Raw::from_value always works")
.deserialize()
.map_err(|_| Error::bad_database("Invalid member event in database."))?;
event.membership = ruma::events::room::member::MembershipState::Leave;
// TODO: reason
db.rooms
.build_and_append_pdu(
PduBuilder {
event_type: EventType::RoomMember,
content: serde_json::to_value(event).expect("event is valid, we just created it"),
unsigned: None,
state_key: Some(body.user_id.to_string()),
redacts: None,
},
&sender_id,
&body.room_id,
&db.globals,
&db.account_data,
)
.await?;
Ok(kick_user::Response::new().into())
}
#[cfg_attr(
feature = "conduit_bin",
post("/_matrix/client/r0/rooms/<_>/ban", data = "<body>")
)]
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
) -> ConduitResult<ban_user::Response> {
let sender_id = body.sender_id.as_ref().expect("user is authenticated");
// TODO: reason
let event = db
.rooms
.room_state_get(
&body.room_id,
&EventType::RoomMember,
&body.user_id.to_string(),
)?
.map_or(
Ok::<_, Error>(member::MemberEventContent {
membership: member::MembershipState::Ban,
displayname: db.users.displayname(&body.user_id)?,
avatar_url: db.users.avatar_url(&body.user_id)?,
is_direct: None,
third_party_invite: None,
}),
|event| {
let mut event =
serde_json::from_value::<Raw<member::MemberEventContent>>(event.content)
.expect("Raw::from_value always works")
.deserialize()
.map_err(|_| Error::bad_database("Invalid member event in database."))?;
event.membership = ruma::events::room::member::MembershipState::Ban;
Ok(event)
},
)?;
db.rooms
.build_and_append_pdu(
PduBuilder {
event_type: EventType::RoomMember,
content: serde_json::to_value(event).expect("event is valid, we just created it"),
unsigned: None,
state_key: Some(body.user_id.to_string()),
redacts: None,
},
&sender_id,
&body.room_id,
&db.globals,
&db.account_data,
)
.await?;
Ok(ban_user::Response::new().into())
}
#[cfg_attr(
feature = "conduit_bin",
post("/_matrix/client/r0/rooms/<_>/unban", data = "<body>")
)]
) -> ConduitResult<unban_user::Response> {
let sender_id = body.sender_id.as_ref().expect("user is authenticated");
let mut event = serde_json::from_value::<Raw<ruma::events::room::member::MemberEventContent>>(
db.rooms
.room_state_get(
&body.room_id,
&EventType::RoomMember,
&body.user_id.to_string(),
)?
.ok_or(Error::BadRequest(
ErrorKind::BadState,
"Cannot unban a user who is not banned.",
))?
.content,
)
.expect("from_value::<Raw<..>> can never fail")
.deserialize()
.map_err(|_| Error::bad_database("Invalid member event in database."))?;
event.membership = ruma::events::room::member::MembershipState::Leave;
db.rooms
.build_and_append_pdu(
PduBuilder {
event_type: EventType::RoomMember,
content: serde_json::to_value(event).expect("event is valid, we just created it"),
unsigned: None,
state_key: Some(body.user_id.to_string()),
redacts: None,
},
&sender_id,
&body.room_id,
&db.globals,
&db.account_data,
)
.await?;
Ok(unban_user::Response::new().into())
}
#[cfg_attr(
feature = "conduit_bin",
post("/_matrix/client/r0/rooms/<_>/forget", data = "<body>")
)]
pub fn forget_room_route(
db: State<'_, Database>,
) -> ConduitResult<forget_room::Response> {
let sender_id = body.sender_id.as_ref().expect("user is authenticated");
db.rooms.forget(&body.room_id, &sender_id)?;
Ok(forget_room::Response::new().into())
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
}
#[cfg_attr(
feature = "conduit_bin",
get("/_matrix/client/r0/joined_rooms", data = "<body>")
)]
pub fn joined_rooms_route(
db: State<'_, Database>,
body: Ruma<joined_rooms::Request>,
) -> ConduitResult<joined_rooms::Response> {
let sender_id = body.sender_id.as_ref().expect("user is authenticated");
Ok(joined_rooms::Response {
joined_rooms: db
.rooms
.rooms_joined(&sender_id)
.filter_map(|r| r.ok())
.collect(),
}
.into())
}
#[cfg_attr(
feature = "conduit_bin",
get("/_matrix/client/r0/rooms/<_>/members", data = "<body>")
)]
pub fn get_member_events_route(
db: State<'_, Database>,
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
) -> ConduitResult<get_member_events::Response> {
let sender_id = body.sender_id.as_ref().expect("user is authenticated");
if !db.rooms.is_joined(sender_id, &body.room_id)? {
return Err(Error::BadRequest(
ErrorKind::Forbidden,
"You don't have permission to view this room.",
));
}
Ok(get_member_events::Response {
chunk: db
.rooms
.room_state_type(&body.room_id, &EventType::RoomMember)?
.values()
.map(|pdu| pdu.to_member_event())
.collect(),
}
.into())
}
#[cfg_attr(
feature = "conduit_bin",
get("/_matrix/client/r0/rooms/<_>/joined_members", data = "<body>")
)]
pub fn joined_members_route(
db: State<'_, Database>,
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
) -> ConduitResult<joined_members::Response> {
let sender_id = body.sender_id.as_ref().expect("user is authenticated");
if !db
.rooms
.is_joined(&sender_id, &body.room_id)
.unwrap_or(false)
{
return Err(Error::BadRequest(
ErrorKind::Forbidden,
"You aren't a member of the room.",
));
}
let mut joined = BTreeMap::new();
for user_id in db.rooms.room_members(&body.room_id).filter_map(|r| r.ok()) {
let display_name = db.users.displayname(&user_id)?;
let avatar_url = db.users.avatar_url(&user_id)?;
joined.insert(
user_id,
joined_members::RoomMember {
display_name,
avatar_url,
},
);
}
Ok(joined_members::Response { joined }.into())
}
async fn join_room_by_id_helper(
db: &Database,
sender_id: Option<&UserId>,
room_id: &RoomId,
servers: &[Box<ServerName>],
_third_party_signed: Option<&IncomingThirdPartySigned>,
) -> ConduitResult<join_room_by_id::Response> {
let sender_id = sender_id.expect("user is authenticated");
// Ask a remote server if we don't have this room
if !db.rooms.exists(&room_id)? && room_id.server_name() != db.globals.server_name() {
let mut make_join_response_and_server = Err(Error::BadServerResponse(
"No server available to assist in joining.",
));
for remote_server in servers {
let make_join_response = server_server::send_request(
remote_server,
federation::membership::create_join_event_template::v1::Request {
room_id,
user_id: sender_id,
ver: &[RoomVersionId::Version5, RoomVersionId::Version6],
},
)
.await;
make_join_response_and_server = make_join_response.map(|r| (r, remote_server));
if make_join_response_and_server.is_ok() {
break;
}
}
let (make_join_response, remote_server) = make_join_response_and_server?;
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
let mut join_event_stub_value =
serde_json::from_str::<serde_json::Value>(make_join_response.event.json().get())
.map_err(|_| {
Error::BadServerResponse("Invalid make_join event json received from server.")
})?;
let join_event_stub =
join_event_stub_value
.as_object_mut()
.ok_or(Error::BadServerResponse(
"Invalid make join event object received from server.",
))?;
join_event_stub.insert(
"origin".to_owned(),
db.globals.server_name().to_owned().to_string().into(),
);
join_event_stub.insert(
"origin_server_ts".to_owned(),
utils::millis_since_unix_epoch().into(),
);
// Generate event id
let event_id = EventId::try_from(&*format!(
"${}",
ruma::signatures::reference_hash(&join_event_stub_value)
.expect("ruma can calculate reference hashes")
))
.expect("ruma's reference hashes are valid event ids");
// We don't leave the event id into the pdu because that's only allowed in v1 or v2 rooms
let join_event_stub = join_event_stub_value.as_object_mut().unwrap();
join_event_stub.remove("event_id");
ruma::signatures::hash_and_sign_event(
db.globals.server_name().as_str(),
db.globals.keypair(),
&mut join_event_stub_value,
)
.expect("event is valid, we just created it");
let send_join_response = server_server::send_request(
remote_server,
federation::membership::create_join_event::v2::Request {
pdu_stub: serde_json::from_value(join_event_stub_value)
.expect("we just created this event"),
},
)
.await?;
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
let add_event_id = |pdu: &Raw<Pdu>| {
let mut value = serde_json::from_str(pdu.json().get())
.expect("converting raw jsons to values always works");
let event_id = EventId::try_from(&*format!(
"${}",
ruma::signatures::reference_hash(&value)
.expect("ruma can calculate reference hashes")
))
.expect("ruma's reference hashes are valid event ids");
value
.as_object_mut()
.ok_or_else(|| Error::BadServerResponse("PDU is not an object."))?
.insert("event_id".to_owned(), event_id.to_string().into());
Ok((event_id, value))
};
let room_state = send_join_response.room_state.state.iter().map(add_event_id);
let state_events = room_state
.clone()
.map(|pdu: Result<(EventId, serde_json::Value)>| Ok(pdu?.0))
.collect::<Result<HashSet<EventId>>>()?;
let auth_chain = send_join_response
.room_state
.iter()
let mut event_map = room_state
.chain(auth_chain)
.map(|r| {
let (event_id, value) = r?;
serde_json::from_value::<StateEvent>(value)
.map_err(|e| {
warn!("{}", e);
Error::BadServerResponse("Invalid PDU bytes in send_join response.")
})
.collect::<Result<BTreeMap<EventId, Arc<StateEvent>>>>()?;
let control_events = event_map
.values()
.filter(|pdu| pdu.is_power_event())
.collect::<Vec<_>>();
// These events are not guaranteed to be sorted but they are resolved according to spec
// we auth them anyways to weed out faulty/malicious server. The following is basically the
// full state resolution algorithm.
let event_ids = event_map.keys().cloned().collect::<Vec<_>>();
let sorted_control_events = state_res::StateResolution::reverse_topological_power_sort(
&control_events,
&mut event_map,
&db.rooms,
// Auth check each event against the "partial" state created by the preceding events
let resolved_control_events = state_res::StateResolution::iterative_auth_check(
room_id,
&RoomVersionId::Version6,
&sorted_control_events,
&BTreeMap::new(), // We have no "clean/resolved" events to add (these extend the `resolved_control_events`)
&mut event_map,
&db.rooms,
)
.expect("iterative auth check failed on resolved events");
// This removes the control events that failed auth, leaving the resolved
// to be mainline sorted
let events_to_sort = event_map
.keys()
.filter(|id| {
!sorted_control_events.contains(id)
|| resolved_control_events.values().any(|rid| *id == rid)
})
.cloned()
.collect::<Vec<_>>();
let power_level =
resolved_control_events.get(&(EventType::RoomPowerLevels, Some("".into())));
// Sort the remaining non control events
let sorted_event_ids = state_res::StateResolution::mainline_sort(
room_id,
&events_to_sort,
power_level,
&mut event_map,
&db.rooms,
);
let resolved_events = state_res::StateResolution::iterative_auth_check(
room_id,
&RoomVersionId::Version6,
&sorted_event_ids,
&resolved_control_events,
&mut event_map,
&db.rooms,
)
.expect("iterative auth check failed on resolved events");
// filter the events that failed the auth check keeping the remaining events
// sorted correctly
for ev_id in sorted_event_ids
.iter()
.filter(|id| resolved_events.values().any(|rid| rid == *id))
{
// this is a `state_res::StateEvent` that holds a `ruma::Pdu`
let pdu = event_map
.get(ev_id)
.expect("Found event_id in sorted events that is not in resolved state");
// We do not rebuild the PDU in this case only insert to DB
let pdu_id = db.rooms.append_pdu(
&PduEvent::from(&**pdu),
&serde_json::to_value(&**pdu).expect("PDU is valid value"),
&db.globals,
&db.account_data,
)?;
if state_events.contains(ev_id) {
state.insert(
(
pdu.kind(),
pdu.state_key().expect("State events have a state key"),
),
pdu_id,
);
}
db.rooms.force_state(room_id, state)?;
} else {
let event = member::MemberEventContent {
membership: member::MembershipState::Join,
displayname: db.users.displayname(&sender_id)?,
avatar_url: db.users.avatar_url(&sender_id)?,
is_direct: None,
third_party_invite: None,
};
db.rooms
.build_and_append_pdu(
PduBuilder {
event_type: EventType::RoomMember,
content: serde_json::to_value(event)
.expect("event is valid, we just created it"),
unsigned: None,
state_key: Some(sender_id.to_string()),
redacts: None,
},
&sender_id,
&room_id,
&db.globals,
&db.account_data,
)
.await?;
Ok(join_room_by_id::Response::new(room_id.clone()).into())
}