fix(calls): stop stale call state from auto-initiating a call on wake - #6018
Conversation
The join API (`GET /call/{channel_id}`) is a get-or-create: asking to join
a channel whose call has ended creates a brand-new call and rings everyone
in it. Three paths could reach that call automatically, long after the
session that triggered them was over — which is how closing a laptop
mid-call turns into a call starting by itself the next morning.
- Auto-rejoin: LiveKit's `Disconnected` scheduled an unconditional rejoin.
A sleeping device freezes that timer while the server reaps the
participant and archives the call; on wake it fires and "reconnects" into
a new call. It now checks that it is running when it was scheduled to
(wall-clock, since the performance timeline freezes with the device) and
that the call it dropped out of is still the live call in that channel.
Recovery may re-enter a call, never open one.
- `?join_call=true` deep link: cleared only once the call mounted, so a
failed join left it in the URL indefinitely and any later reload re-ran
the join. It is now cleared as soon as the attempt settles; retrying a
failed join is the Call tab's "Try again".
- Incoming-call notification: `requireInteraction`, and only closed when
the call was answered. An ended call's toast sat on screen until clicked,
and clicking it deep-linked into a join. It now closes on end too.
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📝 WalkthroughSummary by CodeRabbit
WalkthroughThe changes update call recovery and notification behavior. The channel adapter removes the Merge Risk: 🟡 Moderate · up to The PR reduces stale automatic joins, but recovery can still create or enter an unintended call if the channel or call changes between validation and joining, while an in-flight notification may resurrect an ended-call prompt. The affected behavior is bounded to call recovery and notifications, but these issues should be fixed or explicitly accepted before merge. 🚥 Pre-merge checks | ✅ 4✅ Passed checks (4 passed)
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Inline comments:
In `@apps/web/src/features/channel/Call/auto-rejoin.ts`:
- Around line 100-105: Update the recovery validation around
params.attempt.callId and params.activeCall.callId to return a refusal when the
dropped call ID is null or does not match the active call, preventing automatic
rejoining of an unknown or different call; preserve the existing call_replaced
refusal for known mismatches.
In `@apps/web/src/features/channel/Call/CallStartedNotifier.tsx`:
- Around line 271-275: The pendingCallNotifications handling must cover every
in-flight showNotification attempt for each callId, so a late-resolving earlier
attempt cannot recreate a notification after closeCallNotification runs. Update
the registration and cleanup logic used by closeCallNotification to track and
cancel all attempts per callId, or explicitly cancel the prior attempt before
replacing it, while preserving the existing joinChannelCall behavior for active
notifications.
In `@apps/web/src/features/channel/Call/use-call.ts`:
- Around line 160-169: In the auto-rejoin flow around lookupActiveCall and
joinCall, revalidate that channelId() still matches attempt.channelId after the
active-call lookup completes; if it changed, stop the recovery path before
joinCall to avoid joining the newly selected channel without user action.
- Around line 160-169: The auto-rejoin flow must preserve the captured channel
and call identity instead of using the current channel and channel-only
getOrCreateCall path. Add an atomic server operation under the queries layer
that validates attempt.channelId and attempt.callId before joining, then update
the auto-rejoin logic around checkAutoRejoinTarget and joinCall to use it; move
the direct checkActiveCall and getOrCreateCall requests into the queries layer.
Apply the same fix in `@apps/web/src/features/channel/Call/use-call.ts` around
lines 111 - 122.
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📒 Files selected for processing (5)
apps/web/src/features/block-channel/component/NewChannelBlockAdapter.tsxapps/web/src/features/channel/Call/CallStartedNotifier.tsxapps/web/src/features/channel/Call/auto-rejoin.tsapps/web/src/features/channel/Call/tests/auto-rejoin.test.tsapps/web/src/features/channel/Call/use-call.ts
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…ellation - Refuse an auto-rejoin when the dropped call could not be identified. There is no way to tell that call apart from one someone else has since started, and joining that would be as unprompted as creating one. - Re-check the channel after the active-call lookup. `joinCall` reads the channel accessor, which can have moved on while the lookup was in flight, so the rejoin could land in whichever channel the split navigated to. - Cancel a superseded in-flight notification attempt. Only one entry per call id fits in `pendingCallNotifications`, so a replaced attempt never saw a later `closeCallNotification` and could still register its toast — putting a requireInteraction notification back up for an ended call.
2 participants
Fixes the reported bug where opening a laptop the next morning immediately initiated a call in a channel, with no user action.
Root cause. The join API (
GET /call/{channel_id}) is a get-or-create: asking to join a channel whose call has ended creates a brand-new call and rings every member. Three client paths could reach it automatically, long after the session that triggered them was over.1. Auto-rejoin (
use-call.ts) — the likely culprit. LiveKit'sDisconnectedscheduled an unconditionaljoinCall()750ms later. A sleeping laptop freezes that timer while the server reaps the participant and archives the call; on wake the timer fires (or LiveKit reports the disconnect it could not report while suspended) and the "reconnect" creates a fresh call. The rejoin now runs two guards, extracted as pure functions inauto-rejoin.tsand unit-tested:GET /call/{channel_id}/active.Recovery may re-enter a call, never open one. When a guard refuses, the UI falls back to the pre-call surface the same way it does when a call ends on its own.
2.
?join_call=truedeep link (NewChannelBlockAdapter.tsx). The param was cleared only once the call mounted, so a failed join left it in the URL indefinitely and any later reload — a browser discarding the tab overnight and restoring it on wake, say — re-ran the join. It is now cleared as soon as the attempt settles; retrying a failed join is the Call tab's "Try again".3. Incoming-call notification (
CallStartedNotifier.tsx). The toast isrequireInteractionand was closed only oncall_answered. An ended call's notification sat on screen until clicked, and clicking it deep-links into a join. It now closes oncall_endedtoo.Server-side leave was already sound:
leave_or_end_callremoves only the caller, and LiveKit'sparticipant_left/room_finishedwebhooks archive an emptied call — which is exactly why the call was gone by morning and the rejoin created a new one.Session: https://claude.ai/code
Generated by Claude Code
Note
High Risk
Changes call join/rejoin and notification deep-link behavior on security-sensitive real-time flows; mistakes could block legitimate reconnects or still allow unprompted calls.
Overview
Fixes unprompted calls after sleep or tab restore by blocking automatic paths that hit the get-or-create join API when the original session is long gone.
Auto-rejoin no longer calls
joinCall()blindly after LiveKit disconnect. Newauto-rejoin.tsguards require the rejoin timer to fire within a wall-clock budget (so a frozen laptop timer does not reconnect hours later) and confirm the droppedcallIdis still the channel’s active call viacheckActiveCall. Refusals clear the reconnect UI viaonLeaveinstead of starting a new call.use-callcaptureslisteningCallIdbefore LiveKit resets state.Deep link
join_call=trueis stripped from the URL when the auto-join attempt settles (pendingJoinCallfalse), not only after the call UI mounts—so failed joins do not leave the param for overnight tab restore to retry via refresh.Incoming-call notifications now close on
call_endedas well as answered, and superseded asyncshowNotificationattempts are cancelled so stalerequireInteractiontoasts cannot deep-link into a join that creates a new call.Reviewed by Cursor Bugbot for commit 0579b4d. Bugbot is set up for automated code reviews on this repo. Configure here.