1mod store;
2
3use crate::{
4 auth,
5 db::{self, ChannelId, MessageId, User, UserId},
6 AppState, Result,
7};
8use anyhow::anyhow;
9use async_tungstenite::tungstenite::{
10 protocol::CloseFrame as TungsteniteCloseFrame, Message as TungsteniteMessage,
11};
12use axum::{
13 body::Body,
14 extract::{
15 ws::{CloseFrame as AxumCloseFrame, Message as AxumMessage},
16 ConnectInfo, WebSocketUpgrade,
17 },
18 headers::{Header, HeaderName},
19 http::StatusCode,
20 middleware,
21 response::IntoResponse,
22 routing::get,
23 Extension, Router, TypedHeader,
24};
25use collections::HashMap;
26use futures::{
27 channel::mpsc,
28 future::{self, BoxFuture},
29 FutureExt, SinkExt, StreamExt, TryStreamExt,
30};
31use lazy_static::lazy_static;
32use rpc::{
33 proto::{self, AnyTypedEnvelope, EntityMessage, EnvelopedMessage, RequestMessage},
34 Connection, ConnectionId, Peer, Receipt, TypedEnvelope,
35};
36use serde::{Serialize, Serializer};
37use std::{
38 any::TypeId,
39 future::Future,
40 marker::PhantomData,
41 net::SocketAddr,
42 ops::{Deref, DerefMut},
43 rc::Rc,
44 sync::{
45 atomic::{AtomicBool, Ordering::SeqCst},
46 Arc,
47 },
48 time::Duration,
49};
50use time::OffsetDateTime;
51use tokio::{
52 sync::{RwLock, RwLockReadGuard, RwLockWriteGuard},
53 time::Sleep,
54};
55use tower::ServiceBuilder;
56use tracing::{info_span, instrument, Instrument};
57
58pub use store::{Store, Worktree};
59
60type MessageHandler =
61 Box<dyn Send + Sync + Fn(Arc<Server>, Box<dyn AnyTypedEnvelope>) -> BoxFuture<'static, ()>>;
62
63struct Response<R> {
64 server: Arc<Server>,
65 receipt: Receipt<R>,
66 responded: Arc<AtomicBool>,
67}
68
69impl<R: RequestMessage> Response<R> {
70 fn send(self, payload: R::Response) -> Result<()> {
71 self.responded.store(true, SeqCst);
72 self.server.peer.respond(self.receipt, payload)?;
73 Ok(())
74 }
75
76 fn into_receipt(self) -> Receipt<R> {
77 self.responded.store(true, SeqCst);
78 self.receipt
79 }
80}
81
82pub struct Server {
83 peer: Arc<Peer>,
84 pub(crate) store: RwLock<Store>,
85 app_state: Arc<AppState>,
86 handlers: HashMap<TypeId, MessageHandler>,
87 notifications: Option<mpsc::UnboundedSender<()>>,
88}
89
90pub trait Executor: Send + Clone {
91 type Sleep: Send + Future;
92 fn spawn_detached<F: 'static + Send + Future<Output = ()>>(&self, future: F);
93 fn sleep(&self, duration: Duration) -> Self::Sleep;
94}
95
96#[derive(Clone)]
97pub struct RealExecutor;
98
99const MESSAGE_COUNT_PER_PAGE: usize = 100;
100const MAX_MESSAGE_LEN: usize = 1024;
101
102struct StoreReadGuard<'a> {
103 guard: RwLockReadGuard<'a, Store>,
104 _not_send: PhantomData<Rc<()>>,
105}
106
107struct StoreWriteGuard<'a> {
108 guard: RwLockWriteGuard<'a, Store>,
109 _not_send: PhantomData<Rc<()>>,
110}
111
112#[derive(Serialize)]
113pub struct ServerSnapshot<'a> {
114 peer: &'a Peer,
115 #[serde(serialize_with = "serialize_deref")]
116 store: RwLockReadGuard<'a, Store>,
117}
118
119pub fn serialize_deref<S, T, U>(value: &T, serializer: S) -> Result<S::Ok, S::Error>
120where
121 S: Serializer,
122 T: Deref<Target = U>,
123 U: Serialize,
124{
125 Serialize::serialize(value.deref(), serializer)
126}
127
128impl Server {
129 pub fn new(
130 app_state: Arc<AppState>,
131 notifications: Option<mpsc::UnboundedSender<()>>,
132 ) -> Arc<Self> {
133 let mut server = Self {
134 peer: Peer::new(),
135 app_state,
136 store: Default::default(),
137 handlers: Default::default(),
138 notifications,
139 };
140
141 server
142 .add_request_handler(Server::ping)
143 .add_request_handler(Server::register_project)
144 .add_request_handler(Server::unregister_project)
145 .add_request_handler(Server::join_project)
146 .add_message_handler(Server::leave_project)
147 .add_message_handler(Server::respond_to_join_project_request)
148 .add_message_handler(Server::update_project)
149 .add_request_handler(Server::update_worktree)
150 .add_message_handler(Server::start_language_server)
151 .add_message_handler(Server::update_language_server)
152 .add_message_handler(Server::update_diagnostic_summary)
153 .add_request_handler(Server::forward_project_request::<proto::GetHover>)
154 .add_request_handler(Server::forward_project_request::<proto::GetDefinition>)
155 .add_request_handler(Server::forward_project_request::<proto::GetReferences>)
156 .add_request_handler(Server::forward_project_request::<proto::SearchProject>)
157 .add_request_handler(Server::forward_project_request::<proto::GetDocumentHighlights>)
158 .add_request_handler(Server::forward_project_request::<proto::GetProjectSymbols>)
159 .add_request_handler(Server::forward_project_request::<proto::OpenBufferForSymbol>)
160 .add_request_handler(Server::forward_project_request::<proto::OpenBufferById>)
161 .add_request_handler(Server::forward_project_request::<proto::OpenBufferByPath>)
162 .add_request_handler(Server::forward_project_request::<proto::GetCompletions>)
163 .add_request_handler(
164 Server::forward_project_request::<proto::ApplyCompletionAdditionalEdits>,
165 )
166 .add_request_handler(Server::forward_project_request::<proto::GetCodeActions>)
167 .add_request_handler(Server::forward_project_request::<proto::ApplyCodeAction>)
168 .add_request_handler(Server::forward_project_request::<proto::PrepareRename>)
169 .add_request_handler(Server::forward_project_request::<proto::PerformRename>)
170 .add_request_handler(Server::forward_project_request::<proto::ReloadBuffers>)
171 .add_request_handler(Server::forward_project_request::<proto::FormatBuffers>)
172 .add_request_handler(Server::forward_project_request::<proto::CreateProjectEntry>)
173 .add_request_handler(Server::forward_project_request::<proto::RenameProjectEntry>)
174 .add_request_handler(Server::forward_project_request::<proto::CopyProjectEntry>)
175 .add_request_handler(Server::forward_project_request::<proto::DeleteProjectEntry>)
176 .add_request_handler(Server::update_buffer)
177 .add_message_handler(Server::update_buffer_file)
178 .add_message_handler(Server::buffer_reloaded)
179 .add_message_handler(Server::buffer_saved)
180 .add_request_handler(Server::save_buffer)
181 .add_request_handler(Server::get_channels)
182 .add_request_handler(Server::get_users)
183 .add_request_handler(Server::fuzzy_search_users)
184 .add_request_handler(Server::request_contact)
185 .add_request_handler(Server::remove_contact)
186 .add_request_handler(Server::respond_to_contact_request)
187 .add_request_handler(Server::join_channel)
188 .add_message_handler(Server::leave_channel)
189 .add_request_handler(Server::send_channel_message)
190 .add_request_handler(Server::follow)
191 .add_message_handler(Server::unfollow)
192 .add_message_handler(Server::update_followers)
193 .add_request_handler(Server::get_channel_messages);
194
195 Arc::new(server)
196 }
197
198 fn add_message_handler<F, Fut, M>(&mut self, handler: F) -> &mut Self
199 where
200 F: 'static + Send + Sync + Fn(Arc<Self>, TypedEnvelope<M>) -> Fut,
201 Fut: 'static + Send + Future<Output = Result<()>>,
202 M: EnvelopedMessage,
203 {
204 let prev_handler = self.handlers.insert(
205 TypeId::of::<M>(),
206 Box::new(move |server, envelope| {
207 let envelope = envelope.into_any().downcast::<TypedEnvelope<M>>().unwrap();
208 let span = info_span!(
209 "handle message",
210 payload_type = envelope.payload_type_name(),
211 payload = format!("{:?}", envelope.payload).as_str(),
212 );
213 let future = (handler)(server, *envelope);
214 async move {
215 if let Err(error) = future.await {
216 tracing::error!(%error, "error handling message");
217 }
218 }
219 .instrument(span)
220 .boxed()
221 }),
222 );
223 if prev_handler.is_some() {
224 panic!("registered a handler for the same message twice");
225 }
226 self
227 }
228
229 /// Handle a request while holding a lock to the store. This is useful when we're registering
230 /// a connection but we want to respond on the connection before anybody else can send on it.
231 fn add_request_handler<F, Fut, M>(&mut self, handler: F) -> &mut Self
232 where
233 F: 'static + Send + Sync + Fn(Arc<Self>, TypedEnvelope<M>, Response<M>) -> Fut,
234 Fut: Send + Future<Output = Result<()>>,
235 M: RequestMessage,
236 {
237 let handler = Arc::new(handler);
238 self.add_message_handler(move |server, envelope| {
239 let receipt = envelope.receipt();
240 let handler = handler.clone();
241 async move {
242 let responded = Arc::new(AtomicBool::default());
243 let response = Response {
244 server: server.clone(),
245 responded: responded.clone(),
246 receipt: envelope.receipt(),
247 };
248 match (handler)(server.clone(), envelope, response).await {
249 Ok(()) => {
250 if responded.load(std::sync::atomic::Ordering::SeqCst) {
251 Ok(())
252 } else {
253 Err(anyhow!("handler did not send a response"))?
254 }
255 }
256 Err(error) => {
257 server.peer.respond_with_error(
258 receipt,
259 proto::Error {
260 message: error.to_string(),
261 },
262 )?;
263 Err(error)
264 }
265 }
266 }
267 })
268 }
269
270 pub fn handle_connection<E: Executor>(
271 self: &Arc<Self>,
272 connection: Connection,
273 address: String,
274 user: User,
275 mut send_connection_id: Option<mpsc::Sender<ConnectionId>>,
276 executor: E,
277 ) -> impl Future<Output = Result<()>> {
278 let mut this = self.clone();
279 let user_id = user.id;
280 let login = user.github_login;
281 let span = info_span!("handle connection", %user_id, %login, %address);
282 async move {
283 let (connection_id, handle_io, mut incoming_rx) = this
284 .peer
285 .add_connection(connection, {
286 let executor = executor.clone();
287 move |duration| {
288 let timer = executor.sleep(duration);
289 async move {
290 timer.await;
291 }
292 }
293 })
294 .await;
295
296 tracing::info!(%user_id, %login, %connection_id, %address, "connection opened");
297
298 if let Some(send_connection_id) = send_connection_id.as_mut() {
299 let _ = send_connection_id.send(connection_id).await;
300 }
301
302 if !user.connected_once {
303 this.peer.send(connection_id, proto::ShowContacts {})?;
304 this.app_state.db.set_user_connected_once(user_id, true).await?;
305 }
306
307 let (contacts, invite_code) = future::try_join(
308 this.app_state.db.get_contacts(user_id),
309 this.app_state.db.get_invite_code_for_user(user_id)
310 ).await?;
311
312 {
313 let mut store = this.store_mut().await;
314 store.add_connection(connection_id, user_id);
315 this.peer.send(connection_id, store.build_initial_contacts_update(contacts))?;
316
317 if let Some((code, count)) = invite_code {
318 this.peer.send(connection_id, proto::UpdateInviteInfo {
319 url: format!("{}{}", this.app_state.invite_link_prefix, code),
320 count,
321 })?;
322 }
323 }
324 this.update_user_contacts(user_id).await?;
325
326 let handle_io = handle_io.fuse();
327 futures::pin_mut!(handle_io);
328 loop {
329 let next_message = incoming_rx.next().fuse();
330 futures::pin_mut!(next_message);
331 futures::select_biased! {
332 result = handle_io => {
333 if let Err(error) = result {
334 tracing::error!(?error, %user_id, %login, %connection_id, %address, "error handling I/O");
335 }
336 break;
337 }
338 message = next_message => {
339 if let Some(message) = message {
340 let type_name = message.payload_type_name();
341 let span = tracing::info_span!("receive message", %user_id, %login, %connection_id, %address, type_name);
342 async {
343 if let Some(handler) = this.handlers.get(&message.payload_type_id()) {
344 let notifications = this.notifications.clone();
345 let is_background = message.is_background();
346 let handle_message = (handler)(this.clone(), message);
347 let handle_message = async move {
348 handle_message.await;
349 if let Some(mut notifications) = notifications {
350 let _ = notifications.send(()).await;
351 }
352 };
353 if is_background {
354 executor.spawn_detached(handle_message);
355 } else {
356 handle_message.await;
357 }
358 } else {
359 tracing::error!(%user_id, %login, %connection_id, %address, "no message handler");
360 }
361 }.instrument(span).await;
362 } else {
363 tracing::info!(%user_id, %login, %connection_id, %address, "connection closed");
364 break;
365 }
366 }
367 }
368 }
369
370 tracing::info!(%user_id, %login, %connection_id, %address, "signing out");
371 if let Err(error) = this.sign_out(connection_id).await {
372 tracing::error!(%user_id, %login, %connection_id, %address, ?error, "error signing out");
373 }
374
375 Ok(())
376 }.instrument(span)
377 }
378
379 #[instrument(skip(self), err)]
380 async fn sign_out(self: &mut Arc<Self>, connection_id: ConnectionId) -> Result<()> {
381 self.peer.disconnect(connection_id);
382
383 let removed_user_id = {
384 let mut store = self.store_mut().await;
385 let removed_connection = store.remove_connection(connection_id)?;
386
387 for (project_id, project) in removed_connection.hosted_projects {
388 broadcast(connection_id, project.guests.keys().copied(), |conn_id| {
389 self.peer
390 .send(conn_id, proto::UnregisterProject { project_id })
391 });
392
393 for (_, receipts) in project.join_requests {
394 for receipt in receipts {
395 self.peer.respond(
396 receipt,
397 proto::JoinProjectResponse {
398 variant: Some(proto::join_project_response::Variant::Decline(
399 proto::join_project_response::Decline {
400 reason: proto::join_project_response::decline::Reason::WentOffline as i32
401 },
402 )),
403 },
404 )?;
405 }
406 }
407 }
408
409 for project_id in removed_connection.guest_project_ids {
410 if let Some(project) = store.project(project_id).trace_err() {
411 broadcast(connection_id, project.connection_ids(), |conn_id| {
412 self.peer.send(
413 conn_id,
414 proto::RemoveProjectCollaborator {
415 project_id,
416 peer_id: connection_id.0,
417 },
418 )
419 });
420 if project.guests.is_empty() {
421 self.peer
422 .send(
423 project.host_connection_id,
424 proto::ProjectUnshared { project_id },
425 )
426 .trace_err();
427 }
428 }
429 }
430
431 removed_connection.user_id
432 };
433
434 self.update_user_contacts(removed_user_id).await?;
435
436 Ok(())
437 }
438
439 pub async fn invite_code_redeemed(
440 self: &Arc<Self>,
441 code: &str,
442 invitee_id: UserId,
443 ) -> Result<()> {
444 let user = self.app_state.db.get_user_for_invite_code(code).await?;
445 let store = self.store().await;
446 let invitee_contact = store.contact_for_user(invitee_id, true);
447 for connection_id in store.connection_ids_for_user(user.id) {
448 self.peer.send(
449 connection_id,
450 proto::UpdateContacts {
451 contacts: vec![invitee_contact.clone()],
452 ..Default::default()
453 },
454 )?;
455 self.peer.send(
456 connection_id,
457 proto::UpdateInviteInfo {
458 url: format!("{}{}", self.app_state.invite_link_prefix, code),
459 count: user.invite_count as u32,
460 },
461 )?;
462 }
463 Ok(())
464 }
465
466 pub async fn invite_count_updated(self: &Arc<Self>, user_id: UserId) -> Result<()> {
467 if let Some(user) = self.app_state.db.get_user_by_id(user_id).await? {
468 if let Some(invite_code) = &user.invite_code {
469 let store = self.store().await;
470 for connection_id in store.connection_ids_for_user(user_id) {
471 self.peer.send(
472 connection_id,
473 proto::UpdateInviteInfo {
474 url: format!("{}{}", self.app_state.invite_link_prefix, invite_code),
475 count: user.invite_count as u32,
476 },
477 )?;
478 }
479 }
480 }
481 Ok(())
482 }
483
484 async fn ping(
485 self: Arc<Server>,
486 _: TypedEnvelope<proto::Ping>,
487 response: Response<proto::Ping>,
488 ) -> Result<()> {
489 response.send(proto::Ack {})?;
490 Ok(())
491 }
492
493 async fn register_project(
494 self: Arc<Server>,
495 request: TypedEnvelope<proto::RegisterProject>,
496 response: Response<proto::RegisterProject>,
497 ) -> Result<()> {
498 let project_id;
499 {
500 let mut state = self.store_mut().await;
501 let user_id = state.user_id_for_connection(request.sender_id)?;
502 project_id = state.register_project(request.sender_id, user_id);
503 };
504
505 response.send(proto::RegisterProjectResponse { project_id })?;
506
507 Ok(())
508 }
509
510 async fn unregister_project(
511 self: Arc<Server>,
512 request: TypedEnvelope<proto::UnregisterProject>,
513 response: Response<proto::UnregisterProject>,
514 ) -> Result<()> {
515 let (user_id, project) = {
516 let mut state = self.store_mut().await;
517 let project =
518 state.unregister_project(request.payload.project_id, request.sender_id)?;
519 (state.user_id_for_connection(request.sender_id)?, project)
520 };
521
522 broadcast(
523 request.sender_id,
524 project.guests.keys().copied(),
525 |conn_id| {
526 self.peer.send(
527 conn_id,
528 proto::UnregisterProject {
529 project_id: request.payload.project_id,
530 },
531 )
532 },
533 );
534 for (_, receipts) in project.join_requests {
535 for receipt in receipts {
536 self.peer.respond(
537 receipt,
538 proto::JoinProjectResponse {
539 variant: Some(proto::join_project_response::Variant::Decline(
540 proto::join_project_response::Decline {
541 reason: proto::join_project_response::decline::Reason::Closed
542 as i32,
543 },
544 )),
545 },
546 )?;
547 }
548 }
549
550 // Send out the `UpdateContacts` message before responding to the unregister
551 // request. This way, when the project's host can keep track of the project's
552 // remote id until after they've received the `UpdateContacts` message for
553 // themself.
554 self.update_user_contacts(user_id).await?;
555 response.send(proto::Ack {})?;
556
557 Ok(())
558 }
559
560 async fn update_user_contacts(self: &Arc<Server>, user_id: UserId) -> Result<()> {
561 let contacts = self.app_state.db.get_contacts(user_id).await?;
562 let store = self.store().await;
563 let updated_contact = store.contact_for_user(user_id, false);
564 for contact in contacts {
565 if let db::Contact::Accepted {
566 user_id: contact_user_id,
567 ..
568 } = contact
569 {
570 for contact_conn_id in store.connection_ids_for_user(contact_user_id) {
571 self.peer
572 .send(
573 contact_conn_id,
574 proto::UpdateContacts {
575 contacts: vec![updated_contact.clone()],
576 remove_contacts: Default::default(),
577 incoming_requests: Default::default(),
578 remove_incoming_requests: Default::default(),
579 outgoing_requests: Default::default(),
580 remove_outgoing_requests: Default::default(),
581 },
582 )
583 .trace_err();
584 }
585 }
586 }
587 Ok(())
588 }
589
590 async fn join_project(
591 self: Arc<Server>,
592 request: TypedEnvelope<proto::JoinProject>,
593 response: Response<proto::JoinProject>,
594 ) -> Result<()> {
595 let project_id = request.payload.project_id;
596
597 let host_user_id;
598 let guest_user_id;
599 let host_connection_id;
600 {
601 let state = self.store().await;
602 let project = state.project(project_id)?;
603 host_user_id = project.host_user_id;
604 host_connection_id = project.host_connection_id;
605 guest_user_id = state.user_id_for_connection(request.sender_id)?;
606 };
607
608 tracing::info!(project_id, %host_user_id, %host_connection_id, "join project");
609 let has_contact = self
610 .app_state
611 .db
612 .has_contact(guest_user_id, host_user_id)
613 .await?;
614 if !has_contact {
615 return Err(anyhow!("no such project"))?;
616 }
617
618 self.store_mut().await.request_join_project(
619 guest_user_id,
620 project_id,
621 response.into_receipt(),
622 )?;
623 self.peer.send(
624 host_connection_id,
625 proto::RequestJoinProject {
626 project_id,
627 requester_id: guest_user_id.to_proto(),
628 },
629 )?;
630 Ok(())
631 }
632
633 async fn respond_to_join_project_request(
634 self: Arc<Server>,
635 request: TypedEnvelope<proto::RespondToJoinProjectRequest>,
636 ) -> Result<()> {
637 let host_user_id;
638
639 {
640 let mut state = self.store_mut().await;
641 let project_id = request.payload.project_id;
642 let project = state.project(project_id)?;
643 if project.host_connection_id != request.sender_id {
644 Err(anyhow!("no such connection"))?;
645 }
646
647 host_user_id = project.host_user_id;
648 let guest_user_id = UserId::from_proto(request.payload.requester_id);
649
650 if !request.payload.allow {
651 let receipts = state
652 .deny_join_project_request(request.sender_id, guest_user_id, project_id)
653 .ok_or_else(|| anyhow!("no such request"))?;
654 for receipt in receipts {
655 self.peer.respond(
656 receipt,
657 proto::JoinProjectResponse {
658 variant: Some(proto::join_project_response::Variant::Decline(
659 proto::join_project_response::Decline {
660 reason: proto::join_project_response::decline::Reason::Declined
661 as i32,
662 },
663 )),
664 },
665 )?;
666 }
667 return Ok(());
668 }
669
670 let (receipts_with_replica_ids, project) = state
671 .accept_join_project_request(request.sender_id, guest_user_id, project_id)
672 .ok_or_else(|| anyhow!("no such request"))?;
673
674 let peer_count = project.guests.len();
675 let mut collaborators = Vec::with_capacity(peer_count);
676 collaborators.push(proto::Collaborator {
677 peer_id: project.host_connection_id.0,
678 replica_id: 0,
679 user_id: project.host_user_id.to_proto(),
680 });
681 let worktrees = project
682 .worktrees
683 .iter()
684 .filter_map(|(id, shared_worktree)| {
685 let worktree = project.worktrees.get(&id)?;
686 Some(proto::Worktree {
687 id: *id,
688 root_name: worktree.root_name.clone(),
689 entries: shared_worktree.entries.values().cloned().collect(),
690 diagnostic_summaries: shared_worktree
691 .diagnostic_summaries
692 .values()
693 .cloned()
694 .collect(),
695 visible: worktree.visible,
696 scan_id: shared_worktree.scan_id,
697 })
698 })
699 .collect::<Vec<_>>();
700
701 // Add all guests other than the requesting user's own connections as collaborators
702 for (peer_conn_id, (peer_replica_id, peer_user_id)) in &project.guests {
703 if receipts_with_replica_ids
704 .iter()
705 .all(|(receipt, _)| receipt.sender_id != *peer_conn_id)
706 {
707 collaborators.push(proto::Collaborator {
708 peer_id: peer_conn_id.0,
709 replica_id: *peer_replica_id as u32,
710 user_id: peer_user_id.to_proto(),
711 });
712 }
713 }
714
715 for conn_id in project.connection_ids() {
716 for (receipt, replica_id) in &receipts_with_replica_ids {
717 if conn_id != receipt.sender_id {
718 self.peer.send(
719 conn_id,
720 proto::AddProjectCollaborator {
721 project_id,
722 collaborator: Some(proto::Collaborator {
723 peer_id: receipt.sender_id.0,
724 replica_id: *replica_id as u32,
725 user_id: guest_user_id.to_proto(),
726 }),
727 },
728 )?;
729 }
730 }
731 }
732
733 for (receipt, replica_id) in receipts_with_replica_ids {
734 self.peer.respond(
735 receipt,
736 proto::JoinProjectResponse {
737 variant: Some(proto::join_project_response::Variant::Accept(
738 proto::join_project_response::Accept {
739 worktrees: worktrees.clone(),
740 replica_id: replica_id as u32,
741 collaborators: collaborators.clone(),
742 language_servers: project.language_servers.clone(),
743 },
744 )),
745 },
746 )?;
747 }
748 }
749
750 self.update_user_contacts(host_user_id).await?;
751 Ok(())
752 }
753
754 async fn leave_project(
755 self: Arc<Server>,
756 request: TypedEnvelope<proto::LeaveProject>,
757 ) -> Result<()> {
758 let sender_id = request.sender_id;
759 let project_id = request.payload.project_id;
760 let project;
761 {
762 let mut store = self.store_mut().await;
763 project = store.leave_project(sender_id, project_id)?;
764 tracing::info!(
765 project_id,
766 host_user_id = %project.host_user_id,
767 host_connection_id = %project.host_connection_id,
768 "leave project"
769 );
770
771 if project.remove_collaborator {
772 broadcast(sender_id, project.connection_ids, |conn_id| {
773 self.peer.send(
774 conn_id,
775 proto::RemoveProjectCollaborator {
776 project_id,
777 peer_id: sender_id.0,
778 },
779 )
780 });
781 }
782
783 if let Some(requester_id) = project.cancel_request {
784 self.peer.send(
785 project.host_connection_id,
786 proto::JoinProjectRequestCancelled {
787 project_id,
788 requester_id: requester_id.to_proto(),
789 },
790 )?;
791 }
792
793 if project.unshare {
794 self.peer.send(
795 project.host_connection_id,
796 proto::ProjectUnshared { project_id },
797 )?;
798 }
799 }
800 self.update_user_contacts(project.host_user_id).await?;
801 Ok(())
802 }
803
804 async fn update_project(
805 self: Arc<Server>,
806 request: TypedEnvelope<proto::UpdateProject>,
807 ) -> Result<()> {
808 let user_id;
809 {
810 let mut state = self.store_mut().await;
811 user_id = state.user_id_for_connection(request.sender_id)?;
812 let guest_connection_ids = state
813 .read_project(request.payload.project_id, request.sender_id)?
814 .guest_connection_ids();
815 state.update_project(
816 request.payload.project_id,
817 &request.payload.worktrees,
818 request.sender_id,
819 )?;
820 broadcast(request.sender_id, guest_connection_ids, |connection_id| {
821 self.peer
822 .forward_send(request.sender_id, connection_id, request.payload.clone())
823 });
824 };
825 self.update_user_contacts(user_id).await?;
826 Ok(())
827 }
828
829 async fn update_worktree(
830 self: Arc<Server>,
831 request: TypedEnvelope<proto::UpdateWorktree>,
832 response: Response<proto::UpdateWorktree>,
833 ) -> Result<()> {
834 let (connection_ids, metadata_changed) = {
835 let mut store = self.store_mut().await;
836 let (connection_ids, metadata_changed, extension_counts) = store.update_worktree(
837 request.sender_id,
838 request.payload.project_id,
839 request.payload.worktree_id,
840 &request.payload.root_name,
841 &request.payload.removed_entries,
842 &request.payload.updated_entries,
843 request.payload.scan_id,
844 )?;
845 for (extension, count) in extension_counts {
846 tracing::info!(
847 project_id = request.payload.project_id,
848 worktree_id = request.payload.worktree_id,
849 ?extension,
850 %count,
851 "worktree updated"
852 );
853 }
854 (connection_ids, metadata_changed)
855 };
856
857 broadcast(request.sender_id, connection_ids, |connection_id| {
858 self.peer
859 .forward_send(request.sender_id, connection_id, request.payload.clone())
860 });
861 if metadata_changed {
862 let user_id = self
863 .store()
864 .await
865 .user_id_for_connection(request.sender_id)?;
866 self.update_user_contacts(user_id).await?;
867 }
868 response.send(proto::Ack {})?;
869 Ok(())
870 }
871
872 async fn update_diagnostic_summary(
873 self: Arc<Server>,
874 request: TypedEnvelope<proto::UpdateDiagnosticSummary>,
875 ) -> Result<()> {
876 let summary = request
877 .payload
878 .summary
879 .clone()
880 .ok_or_else(|| anyhow!("invalid summary"))?;
881 let receiver_ids = self.store_mut().await.update_diagnostic_summary(
882 request.payload.project_id,
883 request.payload.worktree_id,
884 request.sender_id,
885 summary,
886 )?;
887
888 broadcast(request.sender_id, receiver_ids, |connection_id| {
889 self.peer
890 .forward_send(request.sender_id, connection_id, request.payload.clone())
891 });
892 Ok(())
893 }
894
895 async fn start_language_server(
896 self: Arc<Server>,
897 request: TypedEnvelope<proto::StartLanguageServer>,
898 ) -> Result<()> {
899 let receiver_ids = self.store_mut().await.start_language_server(
900 request.payload.project_id,
901 request.sender_id,
902 request
903 .payload
904 .server
905 .clone()
906 .ok_or_else(|| anyhow!("invalid language server"))?,
907 )?;
908 broadcast(request.sender_id, receiver_ids, |connection_id| {
909 self.peer
910 .forward_send(request.sender_id, connection_id, request.payload.clone())
911 });
912 Ok(())
913 }
914
915 async fn update_language_server(
916 self: Arc<Server>,
917 request: TypedEnvelope<proto::UpdateLanguageServer>,
918 ) -> Result<()> {
919 let receiver_ids = self
920 .store()
921 .await
922 .project_connection_ids(request.payload.project_id, request.sender_id)?;
923 broadcast(request.sender_id, receiver_ids, |connection_id| {
924 self.peer
925 .forward_send(request.sender_id, connection_id, request.payload.clone())
926 });
927 Ok(())
928 }
929
930 async fn forward_project_request<T>(
931 self: Arc<Server>,
932 request: TypedEnvelope<T>,
933 response: Response<T>,
934 ) -> Result<()>
935 where
936 T: EntityMessage + RequestMessage,
937 {
938 let host_connection_id = self
939 .store()
940 .await
941 .read_project(request.payload.remote_entity_id(), request.sender_id)?
942 .host_connection_id;
943
944 response.send(
945 self.peer
946 .forward_request(request.sender_id, host_connection_id, request.payload)
947 .await?,
948 )?;
949 Ok(())
950 }
951
952 async fn save_buffer(
953 self: Arc<Server>,
954 request: TypedEnvelope<proto::SaveBuffer>,
955 response: Response<proto::SaveBuffer>,
956 ) -> Result<()> {
957 let host = self
958 .store()
959 .await
960 .read_project(request.payload.project_id, request.sender_id)?
961 .host_connection_id;
962 let response_payload = self
963 .peer
964 .forward_request(request.sender_id, host, request.payload.clone())
965 .await?;
966
967 let mut guests = self
968 .store()
969 .await
970 .read_project(request.payload.project_id, request.sender_id)?
971 .connection_ids();
972 guests.retain(|guest_connection_id| *guest_connection_id != request.sender_id);
973 broadcast(host, guests, |conn_id| {
974 self.peer
975 .forward_send(host, conn_id, response_payload.clone())
976 });
977 response.send(response_payload)?;
978 Ok(())
979 }
980
981 async fn update_buffer(
982 self: Arc<Server>,
983 request: TypedEnvelope<proto::UpdateBuffer>,
984 response: Response<proto::UpdateBuffer>,
985 ) -> Result<()> {
986 let receiver_ids = self
987 .store()
988 .await
989 .project_connection_ids(request.payload.project_id, request.sender_id)?;
990 broadcast(request.sender_id, receiver_ids, |connection_id| {
991 self.peer
992 .forward_send(request.sender_id, connection_id, request.payload.clone())
993 });
994 response.send(proto::Ack {})?;
995 Ok(())
996 }
997
998 async fn update_buffer_file(
999 self: Arc<Server>,
1000 request: TypedEnvelope<proto::UpdateBufferFile>,
1001 ) -> Result<()> {
1002 let receiver_ids = self
1003 .store()
1004 .await
1005 .project_connection_ids(request.payload.project_id, request.sender_id)?;
1006 broadcast(request.sender_id, receiver_ids, |connection_id| {
1007 self.peer
1008 .forward_send(request.sender_id, connection_id, request.payload.clone())
1009 });
1010 Ok(())
1011 }
1012
1013 async fn buffer_reloaded(
1014 self: Arc<Server>,
1015 request: TypedEnvelope<proto::BufferReloaded>,
1016 ) -> Result<()> {
1017 let receiver_ids = self
1018 .store()
1019 .await
1020 .project_connection_ids(request.payload.project_id, request.sender_id)?;
1021 broadcast(request.sender_id, receiver_ids, |connection_id| {
1022 self.peer
1023 .forward_send(request.sender_id, connection_id, request.payload.clone())
1024 });
1025 Ok(())
1026 }
1027
1028 async fn buffer_saved(
1029 self: Arc<Server>,
1030 request: TypedEnvelope<proto::BufferSaved>,
1031 ) -> Result<()> {
1032 let receiver_ids = self
1033 .store()
1034 .await
1035 .project_connection_ids(request.payload.project_id, request.sender_id)?;
1036 broadcast(request.sender_id, receiver_ids, |connection_id| {
1037 self.peer
1038 .forward_send(request.sender_id, connection_id, request.payload.clone())
1039 });
1040 Ok(())
1041 }
1042
1043 async fn follow(
1044 self: Arc<Self>,
1045 request: TypedEnvelope<proto::Follow>,
1046 response: Response<proto::Follow>,
1047 ) -> Result<()> {
1048 let leader_id = ConnectionId(request.payload.leader_id);
1049 let follower_id = request.sender_id;
1050 if !self
1051 .store()
1052 .await
1053 .project_connection_ids(request.payload.project_id, follower_id)?
1054 .contains(&leader_id)
1055 {
1056 Err(anyhow!("no such peer"))?;
1057 }
1058 let mut response_payload = self
1059 .peer
1060 .forward_request(request.sender_id, leader_id, request.payload)
1061 .await?;
1062 response_payload
1063 .views
1064 .retain(|view| view.leader_id != Some(follower_id.0));
1065 response.send(response_payload)?;
1066 Ok(())
1067 }
1068
1069 async fn unfollow(self: Arc<Self>, request: TypedEnvelope<proto::Unfollow>) -> Result<()> {
1070 let leader_id = ConnectionId(request.payload.leader_id);
1071 if !self
1072 .store()
1073 .await
1074 .project_connection_ids(request.payload.project_id, request.sender_id)?
1075 .contains(&leader_id)
1076 {
1077 Err(anyhow!("no such peer"))?;
1078 }
1079 self.peer
1080 .forward_send(request.sender_id, leader_id, request.payload)?;
1081 Ok(())
1082 }
1083
1084 async fn update_followers(
1085 self: Arc<Self>,
1086 request: TypedEnvelope<proto::UpdateFollowers>,
1087 ) -> Result<()> {
1088 let connection_ids = self
1089 .store()
1090 .await
1091 .project_connection_ids(request.payload.project_id, request.sender_id)?;
1092 let leader_id = request
1093 .payload
1094 .variant
1095 .as_ref()
1096 .and_then(|variant| match variant {
1097 proto::update_followers::Variant::CreateView(payload) => payload.leader_id,
1098 proto::update_followers::Variant::UpdateView(payload) => payload.leader_id,
1099 proto::update_followers::Variant::UpdateActiveView(payload) => payload.leader_id,
1100 });
1101 for follower_id in &request.payload.follower_ids {
1102 let follower_id = ConnectionId(*follower_id);
1103 if connection_ids.contains(&follower_id) && Some(follower_id.0) != leader_id {
1104 self.peer
1105 .forward_send(request.sender_id, follower_id, request.payload.clone())?;
1106 }
1107 }
1108 Ok(())
1109 }
1110
1111 async fn get_channels(
1112 self: Arc<Server>,
1113 request: TypedEnvelope<proto::GetChannels>,
1114 response: Response<proto::GetChannels>,
1115 ) -> Result<()> {
1116 let user_id = self
1117 .store()
1118 .await
1119 .user_id_for_connection(request.sender_id)?;
1120 let channels = self.app_state.db.get_accessible_channels(user_id).await?;
1121 response.send(proto::GetChannelsResponse {
1122 channels: channels
1123 .into_iter()
1124 .map(|chan| proto::Channel {
1125 id: chan.id.to_proto(),
1126 name: chan.name,
1127 })
1128 .collect(),
1129 })?;
1130 Ok(())
1131 }
1132
1133 async fn get_users(
1134 self: Arc<Server>,
1135 request: TypedEnvelope<proto::GetUsers>,
1136 response: Response<proto::GetUsers>,
1137 ) -> Result<()> {
1138 let user_ids = request
1139 .payload
1140 .user_ids
1141 .into_iter()
1142 .map(UserId::from_proto)
1143 .collect();
1144 let users = self
1145 .app_state
1146 .db
1147 .get_users_by_ids(user_ids)
1148 .await?
1149 .into_iter()
1150 .map(|user| proto::User {
1151 id: user.id.to_proto(),
1152 avatar_url: format!("https://github.com/{}.png?size=128", user.github_login),
1153 github_login: user.github_login,
1154 })
1155 .collect();
1156 response.send(proto::UsersResponse { users })?;
1157 Ok(())
1158 }
1159
1160 async fn fuzzy_search_users(
1161 self: Arc<Server>,
1162 request: TypedEnvelope<proto::FuzzySearchUsers>,
1163 response: Response<proto::FuzzySearchUsers>,
1164 ) -> Result<()> {
1165 let user_id = self
1166 .store()
1167 .await
1168 .user_id_for_connection(request.sender_id)?;
1169 let query = request.payload.query;
1170 let db = &self.app_state.db;
1171 let users = match query.len() {
1172 0 => vec![],
1173 1 | 2 => db
1174 .get_user_by_github_login(&query)
1175 .await?
1176 .into_iter()
1177 .collect(),
1178 _ => db.fuzzy_search_users(&query, 10).await?,
1179 };
1180 let users = users
1181 .into_iter()
1182 .filter(|user| user.id != user_id)
1183 .map(|user| proto::User {
1184 id: user.id.to_proto(),
1185 avatar_url: format!("https://github.com/{}.png?size=128", user.github_login),
1186 github_login: user.github_login,
1187 })
1188 .collect();
1189 response.send(proto::UsersResponse { users })?;
1190 Ok(())
1191 }
1192
1193 async fn request_contact(
1194 self: Arc<Server>,
1195 request: TypedEnvelope<proto::RequestContact>,
1196 response: Response<proto::RequestContact>,
1197 ) -> Result<()> {
1198 let requester_id = self
1199 .store()
1200 .await
1201 .user_id_for_connection(request.sender_id)?;
1202 let responder_id = UserId::from_proto(request.payload.responder_id);
1203 if requester_id == responder_id {
1204 return Err(anyhow!("cannot add yourself as a contact"))?;
1205 }
1206
1207 self.app_state
1208 .db
1209 .send_contact_request(requester_id, responder_id)
1210 .await?;
1211
1212 // Update outgoing contact requests of requester
1213 let mut update = proto::UpdateContacts::default();
1214 update.outgoing_requests.push(responder_id.to_proto());
1215 for connection_id in self.store().await.connection_ids_for_user(requester_id) {
1216 self.peer.send(connection_id, update.clone())?;
1217 }
1218
1219 // Update incoming contact requests of responder
1220 let mut update = proto::UpdateContacts::default();
1221 update
1222 .incoming_requests
1223 .push(proto::IncomingContactRequest {
1224 requester_id: requester_id.to_proto(),
1225 should_notify: true,
1226 });
1227 for connection_id in self.store().await.connection_ids_for_user(responder_id) {
1228 self.peer.send(connection_id, update.clone())?;
1229 }
1230
1231 response.send(proto::Ack {})?;
1232 Ok(())
1233 }
1234
1235 async fn respond_to_contact_request(
1236 self: Arc<Server>,
1237 request: TypedEnvelope<proto::RespondToContactRequest>,
1238 response: Response<proto::RespondToContactRequest>,
1239 ) -> Result<()> {
1240 let responder_id = self
1241 .store()
1242 .await
1243 .user_id_for_connection(request.sender_id)?;
1244 let requester_id = UserId::from_proto(request.payload.requester_id);
1245 if request.payload.response == proto::ContactRequestResponse::Dismiss as i32 {
1246 self.app_state
1247 .db
1248 .dismiss_contact_notification(responder_id, requester_id)
1249 .await?;
1250 } else {
1251 let accept = request.payload.response == proto::ContactRequestResponse::Accept as i32;
1252 self.app_state
1253 .db
1254 .respond_to_contact_request(responder_id, requester_id, accept)
1255 .await?;
1256
1257 let store = self.store().await;
1258 // Update responder with new contact
1259 let mut update = proto::UpdateContacts::default();
1260 if accept {
1261 update
1262 .contacts
1263 .push(store.contact_for_user(requester_id, false));
1264 }
1265 update
1266 .remove_incoming_requests
1267 .push(requester_id.to_proto());
1268 for connection_id in store.connection_ids_for_user(responder_id) {
1269 self.peer.send(connection_id, update.clone())?;
1270 }
1271
1272 // Update requester with new contact
1273 let mut update = proto::UpdateContacts::default();
1274 if accept {
1275 update
1276 .contacts
1277 .push(store.contact_for_user(responder_id, true));
1278 }
1279 update
1280 .remove_outgoing_requests
1281 .push(responder_id.to_proto());
1282 for connection_id in store.connection_ids_for_user(requester_id) {
1283 self.peer.send(connection_id, update.clone())?;
1284 }
1285 }
1286
1287 response.send(proto::Ack {})?;
1288 Ok(())
1289 }
1290
1291 async fn remove_contact(
1292 self: Arc<Server>,
1293 request: TypedEnvelope<proto::RemoveContact>,
1294 response: Response<proto::RemoveContact>,
1295 ) -> Result<()> {
1296 let requester_id = self
1297 .store()
1298 .await
1299 .user_id_for_connection(request.sender_id)?;
1300 let responder_id = UserId::from_proto(request.payload.user_id);
1301 self.app_state
1302 .db
1303 .remove_contact(requester_id, responder_id)
1304 .await?;
1305
1306 // Update outgoing contact requests of requester
1307 let mut update = proto::UpdateContacts::default();
1308 update
1309 .remove_outgoing_requests
1310 .push(responder_id.to_proto());
1311 for connection_id in self.store().await.connection_ids_for_user(requester_id) {
1312 self.peer.send(connection_id, update.clone())?;
1313 }
1314
1315 // Update incoming contact requests of responder
1316 let mut update = proto::UpdateContacts::default();
1317 update
1318 .remove_incoming_requests
1319 .push(requester_id.to_proto());
1320 for connection_id in self.store().await.connection_ids_for_user(responder_id) {
1321 self.peer.send(connection_id, update.clone())?;
1322 }
1323
1324 response.send(proto::Ack {})?;
1325 Ok(())
1326 }
1327
1328 async fn join_channel(
1329 self: Arc<Self>,
1330 request: TypedEnvelope<proto::JoinChannel>,
1331 response: Response<proto::JoinChannel>,
1332 ) -> Result<()> {
1333 let user_id = self
1334 .store()
1335 .await
1336 .user_id_for_connection(request.sender_id)?;
1337 let channel_id = ChannelId::from_proto(request.payload.channel_id);
1338 if !self
1339 .app_state
1340 .db
1341 .can_user_access_channel(user_id, channel_id)
1342 .await?
1343 {
1344 Err(anyhow!("access denied"))?;
1345 }
1346
1347 self.store_mut()
1348 .await
1349 .join_channel(request.sender_id, channel_id);
1350 let messages = self
1351 .app_state
1352 .db
1353 .get_channel_messages(channel_id, MESSAGE_COUNT_PER_PAGE, None)
1354 .await?
1355 .into_iter()
1356 .map(|msg| proto::ChannelMessage {
1357 id: msg.id.to_proto(),
1358 body: msg.body,
1359 timestamp: msg.sent_at.unix_timestamp() as u64,
1360 sender_id: msg.sender_id.to_proto(),
1361 nonce: Some(msg.nonce.as_u128().into()),
1362 })
1363 .collect::<Vec<_>>();
1364 response.send(proto::JoinChannelResponse {
1365 done: messages.len() < MESSAGE_COUNT_PER_PAGE,
1366 messages,
1367 })?;
1368 Ok(())
1369 }
1370
1371 async fn leave_channel(
1372 self: Arc<Self>,
1373 request: TypedEnvelope<proto::LeaveChannel>,
1374 ) -> Result<()> {
1375 let user_id = self
1376 .store()
1377 .await
1378 .user_id_for_connection(request.sender_id)?;
1379 let channel_id = ChannelId::from_proto(request.payload.channel_id);
1380 if !self
1381 .app_state
1382 .db
1383 .can_user_access_channel(user_id, channel_id)
1384 .await?
1385 {
1386 Err(anyhow!("access denied"))?;
1387 }
1388
1389 self.store_mut()
1390 .await
1391 .leave_channel(request.sender_id, channel_id);
1392
1393 Ok(())
1394 }
1395
1396 async fn send_channel_message(
1397 self: Arc<Self>,
1398 request: TypedEnvelope<proto::SendChannelMessage>,
1399 response: Response<proto::SendChannelMessage>,
1400 ) -> Result<()> {
1401 let channel_id = ChannelId::from_proto(request.payload.channel_id);
1402 let user_id;
1403 let connection_ids;
1404 {
1405 let state = self.store().await;
1406 user_id = state.user_id_for_connection(request.sender_id)?;
1407 connection_ids = state.channel_connection_ids(channel_id)?;
1408 }
1409
1410 // Validate the message body.
1411 let body = request.payload.body.trim().to_string();
1412 if body.len() > MAX_MESSAGE_LEN {
1413 return Err(anyhow!("message is too long"))?;
1414 }
1415 if body.is_empty() {
1416 return Err(anyhow!("message can't be blank"))?;
1417 }
1418
1419 let timestamp = OffsetDateTime::now_utc();
1420 let nonce = request
1421 .payload
1422 .nonce
1423 .ok_or_else(|| anyhow!("nonce can't be blank"))?;
1424
1425 let message_id = self
1426 .app_state
1427 .db
1428 .create_channel_message(channel_id, user_id, &body, timestamp, nonce.clone().into())
1429 .await?
1430 .to_proto();
1431 let message = proto::ChannelMessage {
1432 sender_id: user_id.to_proto(),
1433 id: message_id,
1434 body,
1435 timestamp: timestamp.unix_timestamp() as u64,
1436 nonce: Some(nonce),
1437 };
1438 broadcast(request.sender_id, connection_ids, |conn_id| {
1439 self.peer.send(
1440 conn_id,
1441 proto::ChannelMessageSent {
1442 channel_id: channel_id.to_proto(),
1443 message: Some(message.clone()),
1444 },
1445 )
1446 });
1447 response.send(proto::SendChannelMessageResponse {
1448 message: Some(message),
1449 })?;
1450 Ok(())
1451 }
1452
1453 async fn get_channel_messages(
1454 self: Arc<Self>,
1455 request: TypedEnvelope<proto::GetChannelMessages>,
1456 response: Response<proto::GetChannelMessages>,
1457 ) -> Result<()> {
1458 let user_id = self
1459 .store()
1460 .await
1461 .user_id_for_connection(request.sender_id)?;
1462 let channel_id = ChannelId::from_proto(request.payload.channel_id);
1463 if !self
1464 .app_state
1465 .db
1466 .can_user_access_channel(user_id, channel_id)
1467 .await?
1468 {
1469 Err(anyhow!("access denied"))?;
1470 }
1471
1472 let messages = self
1473 .app_state
1474 .db
1475 .get_channel_messages(
1476 channel_id,
1477 MESSAGE_COUNT_PER_PAGE,
1478 Some(MessageId::from_proto(request.payload.before_message_id)),
1479 )
1480 .await?
1481 .into_iter()
1482 .map(|msg| proto::ChannelMessage {
1483 id: msg.id.to_proto(),
1484 body: msg.body,
1485 timestamp: msg.sent_at.unix_timestamp() as u64,
1486 sender_id: msg.sender_id.to_proto(),
1487 nonce: Some(msg.nonce.as_u128().into()),
1488 })
1489 .collect::<Vec<_>>();
1490 response.send(proto::GetChannelMessagesResponse {
1491 done: messages.len() < MESSAGE_COUNT_PER_PAGE,
1492 messages,
1493 })?;
1494 Ok(())
1495 }
1496
1497 async fn store<'a>(self: &'a Arc<Self>) -> StoreReadGuard<'a> {
1498 #[cfg(test)]
1499 tokio::task::yield_now().await;
1500 let guard = self.store.read().await;
1501 #[cfg(test)]
1502 tokio::task::yield_now().await;
1503 StoreReadGuard {
1504 guard,
1505 _not_send: PhantomData,
1506 }
1507 }
1508
1509 async fn store_mut<'a>(self: &'a Arc<Self>) -> StoreWriteGuard<'a> {
1510 #[cfg(test)]
1511 tokio::task::yield_now().await;
1512 let guard = self.store.write().await;
1513 #[cfg(test)]
1514 tokio::task::yield_now().await;
1515 StoreWriteGuard {
1516 guard,
1517 _not_send: PhantomData,
1518 }
1519 }
1520
1521 pub async fn snapshot<'a>(self: &'a Arc<Self>) -> ServerSnapshot<'a> {
1522 ServerSnapshot {
1523 store: self.store.read().await,
1524 peer: &self.peer,
1525 }
1526 }
1527}
1528
1529impl<'a> Deref for StoreReadGuard<'a> {
1530 type Target = Store;
1531
1532 fn deref(&self) -> &Self::Target {
1533 &*self.guard
1534 }
1535}
1536
1537impl<'a> Deref for StoreWriteGuard<'a> {
1538 type Target = Store;
1539
1540 fn deref(&self) -> &Self::Target {
1541 &*self.guard
1542 }
1543}
1544
1545impl<'a> DerefMut for StoreWriteGuard<'a> {
1546 fn deref_mut(&mut self) -> &mut Self::Target {
1547 &mut *self.guard
1548 }
1549}
1550
1551impl<'a> Drop for StoreWriteGuard<'a> {
1552 fn drop(&mut self) {
1553 #[cfg(test)]
1554 self.check_invariants();
1555
1556 let metrics = self.metrics();
1557 tracing::info!(
1558 connections = metrics.connections,
1559 registered_projects = metrics.registered_projects,
1560 shared_projects = metrics.shared_projects,
1561 "metrics"
1562 );
1563 }
1564}
1565
1566impl Executor for RealExecutor {
1567 type Sleep = Sleep;
1568
1569 fn spawn_detached<F: 'static + Send + Future<Output = ()>>(&self, future: F) {
1570 tokio::task::spawn(future);
1571 }
1572
1573 fn sleep(&self, duration: Duration) -> Self::Sleep {
1574 tokio::time::sleep(duration)
1575 }
1576}
1577
1578fn broadcast<F>(
1579 sender_id: ConnectionId,
1580 receiver_ids: impl IntoIterator<Item = ConnectionId>,
1581 mut f: F,
1582) where
1583 F: FnMut(ConnectionId) -> anyhow::Result<()>,
1584{
1585 for receiver_id in receiver_ids {
1586 if receiver_id != sender_id {
1587 f(receiver_id).trace_err();
1588 }
1589 }
1590}
1591
1592lazy_static! {
1593 static ref ZED_PROTOCOL_VERSION: HeaderName = HeaderName::from_static("x-zed-protocol-version");
1594}
1595
1596pub struct ProtocolVersion(u32);
1597
1598impl Header for ProtocolVersion {
1599 fn name() -> &'static HeaderName {
1600 &ZED_PROTOCOL_VERSION
1601 }
1602
1603 fn decode<'i, I>(values: &mut I) -> Result<Self, axum::headers::Error>
1604 where
1605 Self: Sized,
1606 I: Iterator<Item = &'i axum::http::HeaderValue>,
1607 {
1608 let version = values
1609 .next()
1610 .ok_or_else(|| axum::headers::Error::invalid())?
1611 .to_str()
1612 .map_err(|_| axum::headers::Error::invalid())?
1613 .parse()
1614 .map_err(|_| axum::headers::Error::invalid())?;
1615 Ok(Self(version))
1616 }
1617
1618 fn encode<E: Extend<axum::http::HeaderValue>>(&self, values: &mut E) {
1619 values.extend([self.0.to_string().parse().unwrap()]);
1620 }
1621}
1622
1623pub fn routes(server: Arc<Server>) -> Router<Body> {
1624 Router::new()
1625 .route("/rpc", get(handle_websocket_request))
1626 .layer(
1627 ServiceBuilder::new()
1628 .layer(Extension(server.app_state.clone()))
1629 .layer(middleware::from_fn(auth::validate_header))
1630 .layer(Extension(server)),
1631 )
1632}
1633
1634pub async fn handle_websocket_request(
1635 TypedHeader(ProtocolVersion(protocol_version)): TypedHeader<ProtocolVersion>,
1636 ConnectInfo(socket_address): ConnectInfo<SocketAddr>,
1637 Extension(server): Extension<Arc<Server>>,
1638 Extension(user): Extension<User>,
1639 ws: WebSocketUpgrade,
1640) -> axum::response::Response {
1641 if protocol_version != rpc::PROTOCOL_VERSION {
1642 return (
1643 StatusCode::UPGRADE_REQUIRED,
1644 "client must be upgraded".to_string(),
1645 )
1646 .into_response();
1647 }
1648 let socket_address = socket_address.to_string();
1649 ws.on_upgrade(move |socket| {
1650 use util::ResultExt;
1651 let socket = socket
1652 .map_ok(to_tungstenite_message)
1653 .err_into()
1654 .with(|message| async move { Ok(to_axum_message(message)) });
1655 let connection = Connection::new(Box::pin(socket));
1656 async move {
1657 server
1658 .handle_connection(connection, socket_address, user, None, RealExecutor)
1659 .await
1660 .log_err();
1661 }
1662 })
1663}
1664
1665fn to_axum_message(message: TungsteniteMessage) -> AxumMessage {
1666 match message {
1667 TungsteniteMessage::Text(payload) => AxumMessage::Text(payload),
1668 TungsteniteMessage::Binary(payload) => AxumMessage::Binary(payload),
1669 TungsteniteMessage::Ping(payload) => AxumMessage::Ping(payload),
1670 TungsteniteMessage::Pong(payload) => AxumMessage::Pong(payload),
1671 TungsteniteMessage::Close(frame) => AxumMessage::Close(frame.map(|frame| AxumCloseFrame {
1672 code: frame.code.into(),
1673 reason: frame.reason,
1674 })),
1675 }
1676}
1677
1678fn to_tungstenite_message(message: AxumMessage) -> TungsteniteMessage {
1679 match message {
1680 AxumMessage::Text(payload) => TungsteniteMessage::Text(payload),
1681 AxumMessage::Binary(payload) => TungsteniteMessage::Binary(payload),
1682 AxumMessage::Ping(payload) => TungsteniteMessage::Ping(payload),
1683 AxumMessage::Pong(payload) => TungsteniteMessage::Pong(payload),
1684 AxumMessage::Close(frame) => {
1685 TungsteniteMessage::Close(frame.map(|frame| TungsteniteCloseFrame {
1686 code: frame.code.into(),
1687 reason: frame.reason,
1688 }))
1689 }
1690 }
1691}
1692
1693pub trait ResultExt {
1694 type Ok;
1695
1696 fn trace_err(self) -> Option<Self::Ok>;
1697}
1698
1699impl<T, E> ResultExt for Result<T, E>
1700where
1701 E: std::fmt::Debug,
1702{
1703 type Ok = T;
1704
1705 fn trace_err(self) -> Option<T> {
1706 match self {
1707 Ok(value) => Some(value),
1708 Err(error) => {
1709 tracing::error!("{:?}", error);
1710 None
1711 }
1712 }
1713 }
1714}