Files
buzz/desktop/src-tauri/src
Wes e5a7e26a10 fix(desktop): preserve keyring identity during recovery (#7203)
Pinky is opening this PR on Wes's behalf.

## Summary

Carry forward the fix from #7103 by **Taksh / @Chessing234**, with the
original author and DCO sign-off preserved in commit `99dd19191c`. A
separate Pinky-authored commit fixes and strengthens the regression
tests.

`recover_from_keyring` previously deleted an unreadable keyring identity
before checking for a valid leftover `identity.key`. A migrated
installation normally has a marker but no file, so that deletion could
destroy the only remaining key material.

- Attempt valid-file recovery before any explicit keyring deletion.
- If a migration marker exists but no valid file can be recovered, enter
`Lost` without deleting the unreadable keyring value.
- Retain the existing no-marker clear/generate policy.
- Correct the stale deletion expectation in
`corrupt_keyring_recovers_valid_file_without_rotating`, retaining its
identity and persistence checks.
- Add an explicit no-delete assertion to
`corrupt_keyring_with_valid_file_recovers_before_delete`.

Production recovery behavior matches the contributor's fix; follow-up
production-file edits only clarify comments and restore a doc comment.
The existing migration durability order remains **store → uncached
verification → marker → file removal**. Lost-state signing/startup gates
and explicit user re-import remain intact.

### Related issue

Fixes #6218. Linked continuation/replacement of #7103, not a competing
implementation. The original PR remains open for maintainer disposition.
Searched existing keyring PRs and identity/keyring issues; #7103 is the
direct duplicate and source contribution.

### Testing

Validated head: `b6a5512ba85f9e76a039f69714ed04a98eabc710`, based on
`4365883151698cd30e31cf4091629543b61c2478`.

- **Focused baseline:** `cd desktop/src-tauri && cargo test --lib
app_state::` — 52 passed, 0 failed.
- **Mutation check:** in an isolated copy, restore the original
delete-before-file-probe ordering without changing the test file.
`corrupt_keyring_with_valid_file_recovers_before_delete` fails at the
new `store.deleted.borrow().is_empty()` assertion (0 passed, 1 failed;
expected exit 101). The candidate working tree was never mutated.
- **Actual pre-push hooks passed, without bypass:** `push-head-scope`,
`branch-skew`, `file-size-check`, and `desktop-tauri-checks`.
- `cargo clippy --manifest-path desktop/src-tauri/Cargo.toml --workspace
--all-targets -- -D warnings`
- `cd desktop/src-tauri && cargo test --workspace` — 3,156 passed, 0
failed, 20 ignored across test binaries.
- Pre-commit Tauri formatting and DCO hooks passed.
- Independent read-only review by Brain found no further defects in the
final range and verified the baseline/mutation artifacts and contributor
attribution. This is not a GitHub approval.

Local validation used the repository's sidecar stubs for compilation.
Full-repository `just ci`, a native-app recovery workflow, and
live-keyring fault injection were not run. GitHub CI and an actual
current-range Codex security review are still pending; local hooks do
not substitute for those results. No UI markup changed, so screenshots
are not applicable.

### Limits

This prevents destructive cleanup on the marker-backed recovery path; it
does not identify what originally made the keyring value unreadable or
guarantee recovery of already-corrupt material. Markerless last-copy
preservation remains a pre-existing limitation outside this change. Only
the two app-state Rust files change; no new dependency, workflow, or
secret-export surface is introduced.

---------

Signed-off-by: Taksh <takshkothari09@gmail.com>
Signed-off-by: Pinky <5f5ab050ec58ae208332edd544ebf705221e24c1b86d82a6ca07038a7a8f6ac9@buzz.block.builderlab.xyz>
Co-authored-by: Taksh <takshkothari09@gmail.com>
Co-authored-by: Pinky <5f5ab050ec58ae208332edd544ebf705221e24c1b86d82a6ca07038a7a8f6ac9@buzz.block.builderlab.xyz>
2026-09-01 13:43:01 -06:00
..