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 let has_contact = self
609 .app_state
610 .db
611 .has_contact(guest_user_id, host_user_id)
612 .await?;
613 if !has_contact {
614 return Err(anyhow!("no such project"))?;
615 }
616
617 self.store_mut().await.request_join_project(
618 guest_user_id,
619 project_id,
620 response.into_receipt(),
621 )?;
622 self.peer.send(
623 host_connection_id,
624 proto::RequestJoinProject {
625 project_id,
626 requester_id: guest_user_id.to_proto(),
627 },
628 )?;
629 Ok(())
630 }
631
632 async fn respond_to_join_project_request(
633 self: Arc<Server>,
634 request: TypedEnvelope<proto::RespondToJoinProjectRequest>,
635 ) -> Result<()> {
636 let host_user_id;
637
638 {
639 let mut state = self.store_mut().await;
640 let project_id = request.payload.project_id;
641 let project = state.project(project_id)?;
642 if project.host_connection_id != request.sender_id {
643 Err(anyhow!("no such connection"))?;
644 }
645
646 host_user_id = project.host_user_id;
647 let guest_user_id = UserId::from_proto(request.payload.requester_id);
648
649 if !request.payload.allow {
650 let receipts = state
651 .deny_join_project_request(request.sender_id, guest_user_id, project_id)
652 .ok_or_else(|| anyhow!("no such request"))?;
653 for receipt in receipts {
654 self.peer.respond(
655 receipt,
656 proto::JoinProjectResponse {
657 variant: Some(proto::join_project_response::Variant::Decline(
658 proto::join_project_response::Decline {
659 reason: proto::join_project_response::decline::Reason::Declined
660 as i32,
661 },
662 )),
663 },
664 )?;
665 }
666 return Ok(());
667 }
668
669 let (receipts_with_replica_ids, project) = state
670 .accept_join_project_request(request.sender_id, guest_user_id, project_id)
671 .ok_or_else(|| anyhow!("no such request"))?;
672
673 let peer_count = project.guests.len();
674 let mut collaborators = Vec::with_capacity(peer_count);
675 collaborators.push(proto::Collaborator {
676 peer_id: project.host_connection_id.0,
677 replica_id: 0,
678 user_id: project.host_user_id.to_proto(),
679 });
680 let worktrees = project
681 .worktrees
682 .iter()
683 .filter_map(|(id, shared_worktree)| {
684 let worktree = project.worktrees.get(&id)?;
685 Some(proto::Worktree {
686 id: *id,
687 root_name: worktree.root_name.clone(),
688 entries: shared_worktree.entries.values().cloned().collect(),
689 diagnostic_summaries: shared_worktree
690 .diagnostic_summaries
691 .values()
692 .cloned()
693 .collect(),
694 visible: worktree.visible,
695 scan_id: shared_worktree.scan_id,
696 })
697 })
698 .collect::<Vec<_>>();
699
700 // Add all guests other than the requesting user's own connections as collaborators
701 for (peer_conn_id, (peer_replica_id, peer_user_id)) in &project.guests {
702 if receipts_with_replica_ids
703 .iter()
704 .all(|(receipt, _)| receipt.sender_id != *peer_conn_id)
705 {
706 collaborators.push(proto::Collaborator {
707 peer_id: peer_conn_id.0,
708 replica_id: *peer_replica_id as u32,
709 user_id: peer_user_id.to_proto(),
710 });
711 }
712 }
713
714 for conn_id in project.connection_ids() {
715 for (receipt, replica_id) in &receipts_with_replica_ids {
716 if conn_id != receipt.sender_id {
717 self.peer.send(
718 conn_id,
719 proto::AddProjectCollaborator {
720 project_id,
721 collaborator: Some(proto::Collaborator {
722 peer_id: receipt.sender_id.0,
723 replica_id: *replica_id as u32,
724 user_id: guest_user_id.to_proto(),
725 }),
726 },
727 )?;
728 }
729 }
730 }
731
732 for (receipt, replica_id) in receipts_with_replica_ids {
733 self.peer.respond(
734 receipt,
735 proto::JoinProjectResponse {
736 variant: Some(proto::join_project_response::Variant::Accept(
737 proto::join_project_response::Accept {
738 worktrees: worktrees.clone(),
739 replica_id: replica_id as u32,
740 collaborators: collaborators.clone(),
741 language_servers: project.language_servers.clone(),
742 },
743 )),
744 },
745 )?;
746 }
747 }
748
749 self.update_user_contacts(host_user_id).await?;
750 Ok(())
751 }
752
753 async fn leave_project(
754 self: Arc<Server>,
755 request: TypedEnvelope<proto::LeaveProject>,
756 ) -> Result<()> {
757 let sender_id = request.sender_id;
758 let project_id = request.payload.project_id;
759 let project;
760 {
761 let mut store = self.store_mut().await;
762 project = store.leave_project(sender_id, project_id)?;
763
764 if project.remove_collaborator {
765 broadcast(sender_id, project.connection_ids, |conn_id| {
766 self.peer.send(
767 conn_id,
768 proto::RemoveProjectCollaborator {
769 project_id,
770 peer_id: sender_id.0,
771 },
772 )
773 });
774 }
775
776 if let Some(requester_id) = project.cancel_request {
777 self.peer.send(
778 project.host_connection_id,
779 proto::JoinProjectRequestCancelled {
780 project_id,
781 requester_id: requester_id.to_proto(),
782 },
783 )?;
784 }
785
786 if project.unshare {
787 self.peer.send(
788 project.host_connection_id,
789 proto::ProjectUnshared { project_id },
790 )?;
791 }
792 }
793 self.update_user_contacts(project.host_user_id).await?;
794 Ok(())
795 }
796
797 async fn update_project(
798 self: Arc<Server>,
799 request: TypedEnvelope<proto::UpdateProject>,
800 ) -> Result<()> {
801 let user_id;
802 {
803 let mut state = self.store_mut().await;
804 user_id = state.user_id_for_connection(request.sender_id)?;
805 let guest_connection_ids = state
806 .read_project(request.payload.project_id, request.sender_id)?
807 .guest_connection_ids();
808 state.update_project(
809 request.payload.project_id,
810 &request.payload.worktrees,
811 request.sender_id,
812 )?;
813 broadcast(request.sender_id, guest_connection_ids, |connection_id| {
814 self.peer
815 .forward_send(request.sender_id, connection_id, request.payload.clone())
816 });
817 };
818 self.update_user_contacts(user_id).await?;
819 Ok(())
820 }
821
822 async fn update_worktree(
823 self: Arc<Server>,
824 request: TypedEnvelope<proto::UpdateWorktree>,
825 response: Response<proto::UpdateWorktree>,
826 ) -> Result<()> {
827 let (connection_ids, metadata_changed) = self.store_mut().await.update_worktree(
828 request.sender_id,
829 request.payload.project_id,
830 request.payload.worktree_id,
831 &request.payload.root_name,
832 &request.payload.removed_entries,
833 &request.payload.updated_entries,
834 request.payload.scan_id,
835 )?;
836
837 broadcast(request.sender_id, connection_ids, |connection_id| {
838 self.peer
839 .forward_send(request.sender_id, connection_id, request.payload.clone())
840 });
841 if metadata_changed {
842 let user_id = self
843 .store()
844 .await
845 .user_id_for_connection(request.sender_id)?;
846 self.update_user_contacts(user_id).await?;
847 }
848 response.send(proto::Ack {})?;
849 Ok(())
850 }
851
852 async fn update_diagnostic_summary(
853 self: Arc<Server>,
854 request: TypedEnvelope<proto::UpdateDiagnosticSummary>,
855 ) -> Result<()> {
856 let summary = request
857 .payload
858 .summary
859 .clone()
860 .ok_or_else(|| anyhow!("invalid summary"))?;
861 let receiver_ids = self.store_mut().await.update_diagnostic_summary(
862 request.payload.project_id,
863 request.payload.worktree_id,
864 request.sender_id,
865 summary,
866 )?;
867
868 broadcast(request.sender_id, receiver_ids, |connection_id| {
869 self.peer
870 .forward_send(request.sender_id, connection_id, request.payload.clone())
871 });
872 Ok(())
873 }
874
875 async fn start_language_server(
876 self: Arc<Server>,
877 request: TypedEnvelope<proto::StartLanguageServer>,
878 ) -> Result<()> {
879 let receiver_ids = self.store_mut().await.start_language_server(
880 request.payload.project_id,
881 request.sender_id,
882 request
883 .payload
884 .server
885 .clone()
886 .ok_or_else(|| anyhow!("invalid language server"))?,
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 update_language_server(
896 self: Arc<Server>,
897 request: TypedEnvelope<proto::UpdateLanguageServer>,
898 ) -> Result<()> {
899 let receiver_ids = self
900 .store()
901 .await
902 .project_connection_ids(request.payload.project_id, request.sender_id)?;
903 broadcast(request.sender_id, receiver_ids, |connection_id| {
904 self.peer
905 .forward_send(request.sender_id, connection_id, request.payload.clone())
906 });
907 Ok(())
908 }
909
910 async fn forward_project_request<T>(
911 self: Arc<Server>,
912 request: TypedEnvelope<T>,
913 response: Response<T>,
914 ) -> Result<()>
915 where
916 T: EntityMessage + RequestMessage,
917 {
918 let host_connection_id = self
919 .store()
920 .await
921 .read_project(request.payload.remote_entity_id(), request.sender_id)?
922 .host_connection_id;
923
924 response.send(
925 self.peer
926 .forward_request(request.sender_id, host_connection_id, request.payload)
927 .await?,
928 )?;
929 Ok(())
930 }
931
932 async fn save_buffer(
933 self: Arc<Server>,
934 request: TypedEnvelope<proto::SaveBuffer>,
935 response: Response<proto::SaveBuffer>,
936 ) -> Result<()> {
937 let host = self
938 .store()
939 .await
940 .read_project(request.payload.project_id, request.sender_id)?
941 .host_connection_id;
942 let response_payload = self
943 .peer
944 .forward_request(request.sender_id, host, request.payload.clone())
945 .await?;
946
947 let mut guests = self
948 .store()
949 .await
950 .read_project(request.payload.project_id, request.sender_id)?
951 .connection_ids();
952 guests.retain(|guest_connection_id| *guest_connection_id != request.sender_id);
953 broadcast(host, guests, |conn_id| {
954 self.peer
955 .forward_send(host, conn_id, response_payload.clone())
956 });
957 response.send(response_payload)?;
958 Ok(())
959 }
960
961 async fn update_buffer(
962 self: Arc<Server>,
963 request: TypedEnvelope<proto::UpdateBuffer>,
964 response: Response<proto::UpdateBuffer>,
965 ) -> Result<()> {
966 let receiver_ids = self
967 .store()
968 .await
969 .project_connection_ids(request.payload.project_id, request.sender_id)?;
970 broadcast(request.sender_id, receiver_ids, |connection_id| {
971 self.peer
972 .forward_send(request.sender_id, connection_id, request.payload.clone())
973 });
974 response.send(proto::Ack {})?;
975 Ok(())
976 }
977
978 async fn update_buffer_file(
979 self: Arc<Server>,
980 request: TypedEnvelope<proto::UpdateBufferFile>,
981 ) -> Result<()> {
982 let receiver_ids = self
983 .store()
984 .await
985 .project_connection_ids(request.payload.project_id, request.sender_id)?;
986 broadcast(request.sender_id, receiver_ids, |connection_id| {
987 self.peer
988 .forward_send(request.sender_id, connection_id, request.payload.clone())
989 });
990 Ok(())
991 }
992
993 async fn buffer_reloaded(
994 self: Arc<Server>,
995 request: TypedEnvelope<proto::BufferReloaded>,
996 ) -> Result<()> {
997 let receiver_ids = self
998 .store()
999 .await
1000 .project_connection_ids(request.payload.project_id, request.sender_id)?;
1001 broadcast(request.sender_id, receiver_ids, |connection_id| {
1002 self.peer
1003 .forward_send(request.sender_id, connection_id, request.payload.clone())
1004 });
1005 Ok(())
1006 }
1007
1008 async fn buffer_saved(
1009 self: Arc<Server>,
1010 request: TypedEnvelope<proto::BufferSaved>,
1011 ) -> Result<()> {
1012 let receiver_ids = self
1013 .store()
1014 .await
1015 .project_connection_ids(request.payload.project_id, request.sender_id)?;
1016 broadcast(request.sender_id, receiver_ids, |connection_id| {
1017 self.peer
1018 .forward_send(request.sender_id, connection_id, request.payload.clone())
1019 });
1020 Ok(())
1021 }
1022
1023 async fn follow(
1024 self: Arc<Self>,
1025 request: TypedEnvelope<proto::Follow>,
1026 response: Response<proto::Follow>,
1027 ) -> Result<()> {
1028 let leader_id = ConnectionId(request.payload.leader_id);
1029 let follower_id = request.sender_id;
1030 if !self
1031 .store()
1032 .await
1033 .project_connection_ids(request.payload.project_id, follower_id)?
1034 .contains(&leader_id)
1035 {
1036 Err(anyhow!("no such peer"))?;
1037 }
1038 let mut response_payload = self
1039 .peer
1040 .forward_request(request.sender_id, leader_id, request.payload)
1041 .await?;
1042 response_payload
1043 .views
1044 .retain(|view| view.leader_id != Some(follower_id.0));
1045 response.send(response_payload)?;
1046 Ok(())
1047 }
1048
1049 async fn unfollow(self: Arc<Self>, request: TypedEnvelope<proto::Unfollow>) -> Result<()> {
1050 let leader_id = ConnectionId(request.payload.leader_id);
1051 if !self
1052 .store()
1053 .await
1054 .project_connection_ids(request.payload.project_id, request.sender_id)?
1055 .contains(&leader_id)
1056 {
1057 Err(anyhow!("no such peer"))?;
1058 }
1059 self.peer
1060 .forward_send(request.sender_id, leader_id, request.payload)?;
1061 Ok(())
1062 }
1063
1064 async fn update_followers(
1065 self: Arc<Self>,
1066 request: TypedEnvelope<proto::UpdateFollowers>,
1067 ) -> Result<()> {
1068 let connection_ids = self
1069 .store()
1070 .await
1071 .project_connection_ids(request.payload.project_id, request.sender_id)?;
1072 let leader_id = request
1073 .payload
1074 .variant
1075 .as_ref()
1076 .and_then(|variant| match variant {
1077 proto::update_followers::Variant::CreateView(payload) => payload.leader_id,
1078 proto::update_followers::Variant::UpdateView(payload) => payload.leader_id,
1079 proto::update_followers::Variant::UpdateActiveView(payload) => payload.leader_id,
1080 });
1081 for follower_id in &request.payload.follower_ids {
1082 let follower_id = ConnectionId(*follower_id);
1083 if connection_ids.contains(&follower_id) && Some(follower_id.0) != leader_id {
1084 self.peer
1085 .forward_send(request.sender_id, follower_id, request.payload.clone())?;
1086 }
1087 }
1088 Ok(())
1089 }
1090
1091 async fn get_channels(
1092 self: Arc<Server>,
1093 request: TypedEnvelope<proto::GetChannels>,
1094 response: Response<proto::GetChannels>,
1095 ) -> Result<()> {
1096 let user_id = self
1097 .store()
1098 .await
1099 .user_id_for_connection(request.sender_id)?;
1100 let channels = self.app_state.db.get_accessible_channels(user_id).await?;
1101 response.send(proto::GetChannelsResponse {
1102 channels: channels
1103 .into_iter()
1104 .map(|chan| proto::Channel {
1105 id: chan.id.to_proto(),
1106 name: chan.name,
1107 })
1108 .collect(),
1109 })?;
1110 Ok(())
1111 }
1112
1113 async fn get_users(
1114 self: Arc<Server>,
1115 request: TypedEnvelope<proto::GetUsers>,
1116 response: Response<proto::GetUsers>,
1117 ) -> Result<()> {
1118 let user_ids = request
1119 .payload
1120 .user_ids
1121 .into_iter()
1122 .map(UserId::from_proto)
1123 .collect();
1124 let users = self
1125 .app_state
1126 .db
1127 .get_users_by_ids(user_ids)
1128 .await?
1129 .into_iter()
1130 .map(|user| proto::User {
1131 id: user.id.to_proto(),
1132 avatar_url: format!("https://github.com/{}.png?size=128", user.github_login),
1133 github_login: user.github_login,
1134 })
1135 .collect();
1136 response.send(proto::UsersResponse { users })?;
1137 Ok(())
1138 }
1139
1140 async fn fuzzy_search_users(
1141 self: Arc<Server>,
1142 request: TypedEnvelope<proto::FuzzySearchUsers>,
1143 response: Response<proto::FuzzySearchUsers>,
1144 ) -> Result<()> {
1145 let user_id = self
1146 .store()
1147 .await
1148 .user_id_for_connection(request.sender_id)?;
1149 let query = request.payload.query;
1150 let db = &self.app_state.db;
1151 let users = match query.len() {
1152 0 => vec![],
1153 1 | 2 => db
1154 .get_user_by_github_login(&query)
1155 .await?
1156 .into_iter()
1157 .collect(),
1158 _ => db.fuzzy_search_users(&query, 10).await?,
1159 };
1160 let users = users
1161 .into_iter()
1162 .filter(|user| user.id != user_id)
1163 .map(|user| proto::User {
1164 id: user.id.to_proto(),
1165 avatar_url: format!("https://github.com/{}.png?size=128", user.github_login),
1166 github_login: user.github_login,
1167 })
1168 .collect();
1169 response.send(proto::UsersResponse { users })?;
1170 Ok(())
1171 }
1172
1173 async fn request_contact(
1174 self: Arc<Server>,
1175 request: TypedEnvelope<proto::RequestContact>,
1176 response: Response<proto::RequestContact>,
1177 ) -> Result<()> {
1178 let requester_id = self
1179 .store()
1180 .await
1181 .user_id_for_connection(request.sender_id)?;
1182 let responder_id = UserId::from_proto(request.payload.responder_id);
1183 if requester_id == responder_id {
1184 return Err(anyhow!("cannot add yourself as a contact"))?;
1185 }
1186
1187 self.app_state
1188 .db
1189 .send_contact_request(requester_id, responder_id)
1190 .await?;
1191
1192 // Update outgoing contact requests of requester
1193 let mut update = proto::UpdateContacts::default();
1194 update.outgoing_requests.push(responder_id.to_proto());
1195 for connection_id in self.store().await.connection_ids_for_user(requester_id) {
1196 self.peer.send(connection_id, update.clone())?;
1197 }
1198
1199 // Update incoming contact requests of responder
1200 let mut update = proto::UpdateContacts::default();
1201 update
1202 .incoming_requests
1203 .push(proto::IncomingContactRequest {
1204 requester_id: requester_id.to_proto(),
1205 should_notify: true,
1206 });
1207 for connection_id in self.store().await.connection_ids_for_user(responder_id) {
1208 self.peer.send(connection_id, update.clone())?;
1209 }
1210
1211 response.send(proto::Ack {})?;
1212 Ok(())
1213 }
1214
1215 async fn respond_to_contact_request(
1216 self: Arc<Server>,
1217 request: TypedEnvelope<proto::RespondToContactRequest>,
1218 response: Response<proto::RespondToContactRequest>,
1219 ) -> Result<()> {
1220 let responder_id = self
1221 .store()
1222 .await
1223 .user_id_for_connection(request.sender_id)?;
1224 let requester_id = UserId::from_proto(request.payload.requester_id);
1225 if request.payload.response == proto::ContactRequestResponse::Dismiss as i32 {
1226 self.app_state
1227 .db
1228 .dismiss_contact_notification(responder_id, requester_id)
1229 .await?;
1230 } else {
1231 let accept = request.payload.response == proto::ContactRequestResponse::Accept as i32;
1232 self.app_state
1233 .db
1234 .respond_to_contact_request(responder_id, requester_id, accept)
1235 .await?;
1236
1237 let store = self.store().await;
1238 // Update responder with new contact
1239 let mut update = proto::UpdateContacts::default();
1240 if accept {
1241 update
1242 .contacts
1243 .push(store.contact_for_user(requester_id, false));
1244 }
1245 update
1246 .remove_incoming_requests
1247 .push(requester_id.to_proto());
1248 for connection_id in store.connection_ids_for_user(responder_id) {
1249 self.peer.send(connection_id, update.clone())?;
1250 }
1251
1252 // Update requester with new contact
1253 let mut update = proto::UpdateContacts::default();
1254 if accept {
1255 update
1256 .contacts
1257 .push(store.contact_for_user(responder_id, true));
1258 }
1259 update
1260 .remove_outgoing_requests
1261 .push(responder_id.to_proto());
1262 for connection_id in store.connection_ids_for_user(requester_id) {
1263 self.peer.send(connection_id, update.clone())?;
1264 }
1265 }
1266
1267 response.send(proto::Ack {})?;
1268 Ok(())
1269 }
1270
1271 async fn remove_contact(
1272 self: Arc<Server>,
1273 request: TypedEnvelope<proto::RemoveContact>,
1274 response: Response<proto::RemoveContact>,
1275 ) -> Result<()> {
1276 let requester_id = self
1277 .store()
1278 .await
1279 .user_id_for_connection(request.sender_id)?;
1280 let responder_id = UserId::from_proto(request.payload.user_id);
1281 self.app_state
1282 .db
1283 .remove_contact(requester_id, responder_id)
1284 .await?;
1285
1286 // Update outgoing contact requests of requester
1287 let mut update = proto::UpdateContacts::default();
1288 update
1289 .remove_outgoing_requests
1290 .push(responder_id.to_proto());
1291 for connection_id in self.store().await.connection_ids_for_user(requester_id) {
1292 self.peer.send(connection_id, update.clone())?;
1293 }
1294
1295 // Update incoming contact requests of responder
1296 let mut update = proto::UpdateContacts::default();
1297 update
1298 .remove_incoming_requests
1299 .push(requester_id.to_proto());
1300 for connection_id in self.store().await.connection_ids_for_user(responder_id) {
1301 self.peer.send(connection_id, update.clone())?;
1302 }
1303
1304 response.send(proto::Ack {})?;
1305 Ok(())
1306 }
1307
1308 async fn join_channel(
1309 self: Arc<Self>,
1310 request: TypedEnvelope<proto::JoinChannel>,
1311 response: Response<proto::JoinChannel>,
1312 ) -> Result<()> {
1313 let user_id = self
1314 .store()
1315 .await
1316 .user_id_for_connection(request.sender_id)?;
1317 let channel_id = ChannelId::from_proto(request.payload.channel_id);
1318 if !self
1319 .app_state
1320 .db
1321 .can_user_access_channel(user_id, channel_id)
1322 .await?
1323 {
1324 Err(anyhow!("access denied"))?;
1325 }
1326
1327 self.store_mut()
1328 .await
1329 .join_channel(request.sender_id, channel_id);
1330 let messages = self
1331 .app_state
1332 .db
1333 .get_channel_messages(channel_id, MESSAGE_COUNT_PER_PAGE, None)
1334 .await?
1335 .into_iter()
1336 .map(|msg| proto::ChannelMessage {
1337 id: msg.id.to_proto(),
1338 body: msg.body,
1339 timestamp: msg.sent_at.unix_timestamp() as u64,
1340 sender_id: msg.sender_id.to_proto(),
1341 nonce: Some(msg.nonce.as_u128().into()),
1342 })
1343 .collect::<Vec<_>>();
1344 response.send(proto::JoinChannelResponse {
1345 done: messages.len() < MESSAGE_COUNT_PER_PAGE,
1346 messages,
1347 })?;
1348 Ok(())
1349 }
1350
1351 async fn leave_channel(
1352 self: Arc<Self>,
1353 request: TypedEnvelope<proto::LeaveChannel>,
1354 ) -> Result<()> {
1355 let user_id = self
1356 .store()
1357 .await
1358 .user_id_for_connection(request.sender_id)?;
1359 let channel_id = ChannelId::from_proto(request.payload.channel_id);
1360 if !self
1361 .app_state
1362 .db
1363 .can_user_access_channel(user_id, channel_id)
1364 .await?
1365 {
1366 Err(anyhow!("access denied"))?;
1367 }
1368
1369 self.store_mut()
1370 .await
1371 .leave_channel(request.sender_id, channel_id);
1372
1373 Ok(())
1374 }
1375
1376 async fn send_channel_message(
1377 self: Arc<Self>,
1378 request: TypedEnvelope<proto::SendChannelMessage>,
1379 response: Response<proto::SendChannelMessage>,
1380 ) -> Result<()> {
1381 let channel_id = ChannelId::from_proto(request.payload.channel_id);
1382 let user_id;
1383 let connection_ids;
1384 {
1385 let state = self.store().await;
1386 user_id = state.user_id_for_connection(request.sender_id)?;
1387 connection_ids = state.channel_connection_ids(channel_id)?;
1388 }
1389
1390 // Validate the message body.
1391 let body = request.payload.body.trim().to_string();
1392 if body.len() > MAX_MESSAGE_LEN {
1393 return Err(anyhow!("message is too long"))?;
1394 }
1395 if body.is_empty() {
1396 return Err(anyhow!("message can't be blank"))?;
1397 }
1398
1399 let timestamp = OffsetDateTime::now_utc();
1400 let nonce = request
1401 .payload
1402 .nonce
1403 .ok_or_else(|| anyhow!("nonce can't be blank"))?;
1404
1405 let message_id = self
1406 .app_state
1407 .db
1408 .create_channel_message(channel_id, user_id, &body, timestamp, nonce.clone().into())
1409 .await?
1410 .to_proto();
1411 let message = proto::ChannelMessage {
1412 sender_id: user_id.to_proto(),
1413 id: message_id,
1414 body,
1415 timestamp: timestamp.unix_timestamp() as u64,
1416 nonce: Some(nonce),
1417 };
1418 broadcast(request.sender_id, connection_ids, |conn_id| {
1419 self.peer.send(
1420 conn_id,
1421 proto::ChannelMessageSent {
1422 channel_id: channel_id.to_proto(),
1423 message: Some(message.clone()),
1424 },
1425 )
1426 });
1427 response.send(proto::SendChannelMessageResponse {
1428 message: Some(message),
1429 })?;
1430 Ok(())
1431 }
1432
1433 async fn get_channel_messages(
1434 self: Arc<Self>,
1435 request: TypedEnvelope<proto::GetChannelMessages>,
1436 response: Response<proto::GetChannelMessages>,
1437 ) -> Result<()> {
1438 let user_id = self
1439 .store()
1440 .await
1441 .user_id_for_connection(request.sender_id)?;
1442 let channel_id = ChannelId::from_proto(request.payload.channel_id);
1443 if !self
1444 .app_state
1445 .db
1446 .can_user_access_channel(user_id, channel_id)
1447 .await?
1448 {
1449 Err(anyhow!("access denied"))?;
1450 }
1451
1452 let messages = self
1453 .app_state
1454 .db
1455 .get_channel_messages(
1456 channel_id,
1457 MESSAGE_COUNT_PER_PAGE,
1458 Some(MessageId::from_proto(request.payload.before_message_id)),
1459 )
1460 .await?
1461 .into_iter()
1462 .map(|msg| proto::ChannelMessage {
1463 id: msg.id.to_proto(),
1464 body: msg.body,
1465 timestamp: msg.sent_at.unix_timestamp() as u64,
1466 sender_id: msg.sender_id.to_proto(),
1467 nonce: Some(msg.nonce.as_u128().into()),
1468 })
1469 .collect::<Vec<_>>();
1470 response.send(proto::GetChannelMessagesResponse {
1471 done: messages.len() < MESSAGE_COUNT_PER_PAGE,
1472 messages,
1473 })?;
1474 Ok(())
1475 }
1476
1477 async fn store<'a>(self: &'a Arc<Self>) -> StoreReadGuard<'a> {
1478 #[cfg(test)]
1479 tokio::task::yield_now().await;
1480 let guard = self.store.read().await;
1481 #[cfg(test)]
1482 tokio::task::yield_now().await;
1483 StoreReadGuard {
1484 guard,
1485 _not_send: PhantomData,
1486 }
1487 }
1488
1489 async fn store_mut<'a>(self: &'a Arc<Self>) -> StoreWriteGuard<'a> {
1490 #[cfg(test)]
1491 tokio::task::yield_now().await;
1492 let guard = self.store.write().await;
1493 #[cfg(test)]
1494 tokio::task::yield_now().await;
1495 StoreWriteGuard {
1496 guard,
1497 _not_send: PhantomData,
1498 }
1499 }
1500
1501 pub async fn snapshot<'a>(self: &'a Arc<Self>) -> ServerSnapshot<'a> {
1502 ServerSnapshot {
1503 store: self.store.read().await,
1504 peer: &self.peer,
1505 }
1506 }
1507}
1508
1509impl<'a> Deref for StoreReadGuard<'a> {
1510 type Target = Store;
1511
1512 fn deref(&self) -> &Self::Target {
1513 &*self.guard
1514 }
1515}
1516
1517impl<'a> Deref for StoreWriteGuard<'a> {
1518 type Target = Store;
1519
1520 fn deref(&self) -> &Self::Target {
1521 &*self.guard
1522 }
1523}
1524
1525impl<'a> DerefMut for StoreWriteGuard<'a> {
1526 fn deref_mut(&mut self) -> &mut Self::Target {
1527 &mut *self.guard
1528 }
1529}
1530
1531impl<'a> Drop for StoreWriteGuard<'a> {
1532 fn drop(&mut self) {
1533 #[cfg(test)]
1534 self.check_invariants();
1535
1536 let metrics = self.metrics();
1537 tracing::info!(
1538 connections = metrics.connections,
1539 registered_projects = metrics.registered_projects,
1540 shared_projects = metrics.shared_projects,
1541 "metrics"
1542 );
1543 }
1544}
1545
1546impl Executor for RealExecutor {
1547 type Sleep = Sleep;
1548
1549 fn spawn_detached<F: 'static + Send + Future<Output = ()>>(&self, future: F) {
1550 tokio::task::spawn(future);
1551 }
1552
1553 fn sleep(&self, duration: Duration) -> Self::Sleep {
1554 tokio::time::sleep(duration)
1555 }
1556}
1557
1558fn broadcast<F>(
1559 sender_id: ConnectionId,
1560 receiver_ids: impl IntoIterator<Item = ConnectionId>,
1561 mut f: F,
1562) where
1563 F: FnMut(ConnectionId) -> anyhow::Result<()>,
1564{
1565 for receiver_id in receiver_ids {
1566 if receiver_id != sender_id {
1567 f(receiver_id).trace_err();
1568 }
1569 }
1570}
1571
1572lazy_static! {
1573 static ref ZED_PROTOCOL_VERSION: HeaderName = HeaderName::from_static("x-zed-protocol-version");
1574}
1575
1576pub struct ProtocolVersion(u32);
1577
1578impl Header for ProtocolVersion {
1579 fn name() -> &'static HeaderName {
1580 &ZED_PROTOCOL_VERSION
1581 }
1582
1583 fn decode<'i, I>(values: &mut I) -> Result<Self, axum::headers::Error>
1584 where
1585 Self: Sized,
1586 I: Iterator<Item = &'i axum::http::HeaderValue>,
1587 {
1588 let version = values
1589 .next()
1590 .ok_or_else(|| axum::headers::Error::invalid())?
1591 .to_str()
1592 .map_err(|_| axum::headers::Error::invalid())?
1593 .parse()
1594 .map_err(|_| axum::headers::Error::invalid())?;
1595 Ok(Self(version))
1596 }
1597
1598 fn encode<E: Extend<axum::http::HeaderValue>>(&self, values: &mut E) {
1599 values.extend([self.0.to_string().parse().unwrap()]);
1600 }
1601}
1602
1603pub fn routes(server: Arc<Server>) -> Router<Body> {
1604 Router::new()
1605 .route("/rpc", get(handle_websocket_request))
1606 .layer(
1607 ServiceBuilder::new()
1608 .layer(Extension(server.app_state.clone()))
1609 .layer(middleware::from_fn(auth::validate_header))
1610 .layer(Extension(server)),
1611 )
1612}
1613
1614pub async fn handle_websocket_request(
1615 TypedHeader(ProtocolVersion(protocol_version)): TypedHeader<ProtocolVersion>,
1616 ConnectInfo(socket_address): ConnectInfo<SocketAddr>,
1617 Extension(server): Extension<Arc<Server>>,
1618 Extension(user): Extension<User>,
1619 ws: WebSocketUpgrade,
1620) -> axum::response::Response {
1621 if protocol_version != rpc::PROTOCOL_VERSION {
1622 return (
1623 StatusCode::UPGRADE_REQUIRED,
1624 "client must be upgraded".to_string(),
1625 )
1626 .into_response();
1627 }
1628 let socket_address = socket_address.to_string();
1629 ws.on_upgrade(move |socket| {
1630 use util::ResultExt;
1631 let socket = socket
1632 .map_ok(to_tungstenite_message)
1633 .err_into()
1634 .with(|message| async move { Ok(to_axum_message(message)) });
1635 let connection = Connection::new(Box::pin(socket));
1636 async move {
1637 server
1638 .handle_connection(connection, socket_address, user, None, RealExecutor)
1639 .await
1640 .log_err();
1641 }
1642 })
1643}
1644
1645fn to_axum_message(message: TungsteniteMessage) -> AxumMessage {
1646 match message {
1647 TungsteniteMessage::Text(payload) => AxumMessage::Text(payload),
1648 TungsteniteMessage::Binary(payload) => AxumMessage::Binary(payload),
1649 TungsteniteMessage::Ping(payload) => AxumMessage::Ping(payload),
1650 TungsteniteMessage::Pong(payload) => AxumMessage::Pong(payload),
1651 TungsteniteMessage::Close(frame) => AxumMessage::Close(frame.map(|frame| AxumCloseFrame {
1652 code: frame.code.into(),
1653 reason: frame.reason,
1654 })),
1655 }
1656}
1657
1658fn to_tungstenite_message(message: AxumMessage) -> TungsteniteMessage {
1659 match message {
1660 AxumMessage::Text(payload) => TungsteniteMessage::Text(payload),
1661 AxumMessage::Binary(payload) => TungsteniteMessage::Binary(payload),
1662 AxumMessage::Ping(payload) => TungsteniteMessage::Ping(payload),
1663 AxumMessage::Pong(payload) => TungsteniteMessage::Pong(payload),
1664 AxumMessage::Close(frame) => {
1665 TungsteniteMessage::Close(frame.map(|frame| TungsteniteCloseFrame {
1666 code: frame.code.into(),
1667 reason: frame.reason,
1668 }))
1669 }
1670 }
1671}
1672
1673pub trait ResultExt {
1674 type Ok;
1675
1676 fn trace_err(self) -> Option<Self::Ok>;
1677}
1678
1679impl<T, E> ResultExt for Result<T, E>
1680where
1681 E: std::fmt::Debug,
1682{
1683 type Ok = T;
1684
1685 fn trace_err(self) -> Option<T> {
1686 match self {
1687 Ok(value) => Some(value),
1688 Err(error) => {
1689 tracing::error!("{:?}", error);
1690 None
1691 }
1692 }
1693 }
1694}