[PR #6486] [client] Add Auth.Stop() to cancel an in-progress interactive login #29587

New Issue

saavagebueno · 2026-08-05T08:08:23-04:00

saavagebueno commented

2026-08-05 08:08:23 -04:00

Original Pull Request: https://github.com/netbirdio/netbird/pull/6486

State: closed
Merged: Yes

The iOS PKCE login runs in the main-app process, decoupled from the network extension (the extension's client context is torn down on login-required, which would otherwise kill the WaitToken goroutine before the OAuth callback arrives). Because it is decoupled, nothing aborted the flow when the user dismissed the browser without logging in: WaitToken kept its loopback HTTP server bound to the redirect port until the flow expired, so the next connect stalled trying to bind the same port.

Make the Auth context cancellable and add Auth.Stop(), which cancels it. Cancelling unblocks WaitToken, whose deferred server.Shutdown frees the port immediately. This mirrors how Android's stopEngine() aborts login via the engine context.

NewAuthWithConfig now also derives a cancellable context; its only iOS caller uses LoginSync (no interactive server), so behaviour is unchanged there.

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This change does not modify the public API, gRPC protocols, functionality behavior, CLI / service flags, or introduce a new feature — OR I have discussed it with the NetBird team beforehand (link the issue / Slack thread in the description). See CONTRIBUTING.md.

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Summary by CodeRabbit

New Features
- Added the ability to cancel in-progress authentication flows. Users can now abort interactive login operations on-demand for improved control over the authentication process.

**Original Pull Request:** https://github.com/netbirdio/netbird/pull/6486 **State:** closed **Merged:** Yes --- The iOS PKCE login runs in the main-app process, decoupled from the network extension (the extension's client context is torn down on login-required, which would otherwise kill the WaitToken goroutine before the OAuth callback arrives). Because it is decoupled, nothing aborted the flow when the user dismissed the browser without logging in: WaitToken kept its loopback HTTP server bound to the redirect port until the flow expired, so the next connect stalled trying to bind the same port. Make the Auth context cancellable and add Auth.Stop(), which cancels it. Cancelling unblocks WaitToken, whose deferred server.Shutdown frees the port immediately. This mirrors how Android's stopEngine() aborts login via the engine context. NewAuthWithConfig now also derives a cancellable context; its only iOS caller uses LoginSync (no interactive server), so behaviour is unchanged there. ## Describe your changes ## Issue ticket number and link ## Stack  ### Checklist - [x] Is it a bug fix - [ ] Is a typo/documentation fix - [ ] Is a feature enhancement - [ ] It is a refactor - [ ] Created tests that fail without the change (if possible) - [ ] This change does **not** modify the public API, gRPC protocols, functionality behavior, CLI / service flags, or introduce a new feature — **OR** I have discussed it with the NetBird team beforehand (link the issue / Slack thread in the description). See [CONTRIBUTING.md](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTING.md#discuss-changes-with-the-netbird-team-first). > By submitting this pull request, you confirm that you have read and agree to the terms of the [Contributor License Agreement](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT.md). ## Documentation Select exactly one: - [ ] I added/updated documentation for this change - [x] Documentation is **not needed** for this change (explain why) ### Docs PR URL (required if "docs added" is checked) Paste the PR link from https://github.com/netbirdio/docs here: https://github.com/netbirdio/docs/pull/__  ## Summary by CodeRabbit * **New Features** * Added the ability to cancel in-progress authentication flows. Users can now abort interactive login operations on-demand for improved control over the authentication process.

saavagebueno added the pull-request label 2026-08-05 08:08:23 -04:00

saavagebueno closed this issue

2026-08-05 08:08:24 -04:00

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Reference: DYNR/netbird#29587