Two security fixes bundled together because they all live on the
icon-click/fill path:
1. Icon + picker + TOFU hint now render inside closed-mode Shadow DOM
(via shadow.createShadowHost). Page scripts can no longer find our
overlay via document.querySelector or rewrite buttons.
2. Icon's get_autofill_candidates call drops the `url` field — router
derives origin from sender.tab.url. Similarly get_credentials.
3. Icon's get_credentials response handling was buggy: the response is a
discriminated union { requires_ack, hostname } | { username, password }
and the old code always read .username (→ undefined when requires_ack).
New code dispatches on the `requires_ack` marker and either shows an
in-page TOFU hint or fills directly.
4. fill_credentials is popup-only in the router — the icon click cannot
(and MUST NOT) issue it from content. The new flow calls fillFields()
directly after get_credentials returns the plaintext: the content
script IS the origin, so no SW round-trip is needed for the typing.
5. TOCTOU on the popup → SW → content fill path: the SW verified the
captured tab's hostname matched capturedUrl, then forwarded blindly.
Between that check and chrome.tabs.sendMessage delivery, the tab can
navigate; chrome.tabs.sendMessage delivers to whatever content-script
principal is loaded at send-time. Closed by:
- Router forwards { expectedHost: currentHost } in the payload.
- fill.ts re-checks location.href.hostname === expectedHost before
typing anything; on mismatch replies { ok: false, error: 'origin_changed' }
and types nothing.
6. Remove @ts-nocheck from icon.ts, fill.ts, and detector.ts — all three
now type-check clean.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Non-functional tightening flagged in the slice-3 code review:
- session.ts: document future multi-vault refactor (β+) so the module-
scope singleton is explicitly "deliberately simple," not an oversight.
- vault.ts: move findByHostname doc comment above the function; note
α's intentionally-coarse hostname match (no www-stripping, no
public-suffix matching) and that tighter matching is a β/γ concern.
- index.ts: expand the passphrase scope-clearing comment to make
the theatre explicit rather than leaving it looking like real defense.
- index.ts: TODO(slice-4) marker on delete_item's non-atomic two-write
path — consider manifest-first ordering or retry/rollback at router-
split time.
- index.ts: cross-reference comment on itemToManifestEntry pointing at
the Rust-side ManifestEntry::from_item derivation it must mirror.
No behavior change; build still compiles with 2 bundle-size warnings.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Chrome MV3 service workers do not support dynamic import().
Switch to static import of the wasm-pack JS glue and use
initSync() with fetch() to load the WASM binary at runtime.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Fix .idfoto/ prefix for salt and params.json in vault.ts
- Cache TOTP secrets by entry ID to avoid re-fetching every second
- Fix keyboard navigation to use filtered entries, not unfiltered
- Add window.close() on Escape from entry list
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Main entry point that loads WASM via dynamic import, manages vault state
(master key, manifest, git host), and handles all message types from
popup and content scripts.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Bridges WASM crypto with git host API for encrypt/decrypt of entries
and manifest, plus search, group filtering, and URL-based lookup.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
GitHost interface for reading/writing vault files via REST API.
Gitea and GitHub implementations handle base64 content encoding,
SHA-based updates, and directory listing.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
