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