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Commits
| Author | SHA1 | Message | Date | |
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 Bernd RodlerandClaude Sonnet 5
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bde8455df5 |
fix(mail-index): close handle on every pragma failure, reconcile contact/file deletes
QA pass on the encrypted mail index found two real gaps beyond what the
prior end-to-end fix pass caught:
1. store.ts's MailIndex.open() only wrapped SOME of the post-key pragma
calls in a try/catch before this: the first attempt's `key` pragma and
assertEncrypted() ran outside any try at all, and the wrong-key retry
repeated the same gap. Any pragma throwing there (SQLITE_BUSY, a full
disk on the first WAL write) leaked the native SQLite handle instead of
closing it. Factored the open+key+verify+pragma sequence into openKeyed(),
which guarantees a close before rethrowing on any failure, and reused it
for both the first attempt and the retry.
2. reindex.ts never removed a deleted contact or file from the index. The
`removed` field exists in the API and is fully tested at the store layer,
but nothing in the renderer populates it, so a deleted contact/file stayed
searchable - and retrievable by the AI feature - indefinitely. Mail and
calendar can't use the same fix (their queries are date-windowed, so an id
missing from one fetch may just be outside the window), but contacts/files
have no date filter - a catch-up fetch that comes back under its cap IS
the complete set, so anything locally indexed but absent from it is safely
known to be deleted. Added strayIdsAfterCatchUp() and wired it into the
catch-up path for those two types only.
Also read binding.ts, key.ts, paths.ts, jmap.ts, extract.ts, the FTS5
query builder, and both /api/offline/{search,reindex} routes end to end;
no other concrete bugs found there. Full findings reported separately.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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Bernd RodlerandClaude Opus 5
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f01f50922e |
feat(electron): real offline mail replica — delta sync, full bodies, retention
Gives the Electron desktop client a genuine offline mail replica: mail is
READABLE with no network, not merely searchable. Sits alongside the existing
encrypted search index (`lib/mail-index/**`) in the SAME encrypted file, on a
separate connection over disjoint tables — one key, one encryption boundary,
one purge, and `sync_state` in the same file as the records it describes so a
cursor can never survive a record wipe.
Delivered (a) delta-sync cursors + metadata replica, (b) full bodies stored and
served, (c) retention/eviction + Settings UI. Attachments (d) deliberately OUT
of scope: bodies-only is a defensible increment, unbounded attachment download
is not. Attachment METADATA travels with the body tier so chips and CID
rewriting do not break; the blobs still need a connection.
## Architecture, and why the review's findings did not come back
`docs/ELECTRON-OFFLINE-ENGINE-REVIEW.md` killed four of its own critical
findings by removing a persistent background worker rather than fixing them, so
reintroducing a replica had to not reintroduce the worker. It does not:
C1 - still fixed, untouched: no new dependency, both `docker build`s unaffected.
C2/C3/C4/H1/H4 - still MOOT, and for the same reasons. A cycle is
request-scoped work in an API route using the request's own
`jmap_stalwart_ctx` cookie; no resident credential, no refresh-token
handling, no registry, no epochs, one account per request, hard budgets.
H2 - still fixed: the key crosses on the inherited fd and is zeroed per job.
H3 - BACK IN SCOPE, and answered. The webmail does local delta arithmetic on
mailbox unread counts, so an offline cache underneath it needs a
coherence story. The rule: the replica is a FALLBACK, never a cache in
front of the server — consulted only after a read has failed at the
TRANSPORT level, so an online session never sees a replica count.
Enforcing H3's rule needed a real signal, because `lib/jmap/client.ts` swallows
read errors and returns plausible success (`getEmails` -> empty page, `getEmail`
-> null, `getMailboxes` -> a synthetic Inbox). Hence `lib/jmap/transport-health.ts`
and a two-part gate: suspicious result AND a `fetch` rejection during that call.
## Correctness carried over from the mobile client, by name
- Cursor provenance as branded types: `advanceCursor` cannot accept a
`SnapshotState`, so adopting an `Email/get` state as an `Email/changes` cursor
is a compile error. Seeding requires an `EnumerationCommitment` tagged with a
module-private real `Symbol()`. Tests assert the mint sites by grep.
- Mandatory bootstrap order: capture both cursors BEFORE enumerating.
- `Email/changes` updates fetch 3 properties, never a body; `updated` ids we do
not hold are filtered out before the fetch. Mailbox destroys delete the
mailbox row only. An empty page still advances the cursor.
- Exactly ONE error class moves a cursor. `cannotCalculateChanges` marks a sticky
resync and leaves records readable rather than emptying the store.
- Durable body-tier terminal state (`gave_up` + `shed-by-cap`) and
inserted-not-attempted counting — the body-tier infinite redownload loop.
- Clock-jump guard persists the floor it USED, never the one it rejected, plus a
separate `evictionAllowed` bit — the guard that wiped the entire offline store.
- Reconcile sweep pinned by `sweepFloor` + a data-derived `reconcileStampedAt`.
## Verification
- typecheck clean; 86 new unit tests (2465 total, up from 2379). Every named fix
was RE-BROKEN and confirmed to fail a test (8 gates). Two weak/vacuous tests
were found and repaired.
- Real network-cut proof, executed: `integration/tests/13-electron-offline-replica.spec.ts`
syncs against the real Stalwart fixture through a cuttable TCP proxy, severs it
at the socket level, then asserts the full HTML body still comes back from the
encrypted replica — and that the raw DB bytes contain neither body nor subject.
Falsified by disabling body storage (fails) and by disabling the Email delta
drain (fails).
- Real Electron launch against the live sandbox: all routes reachable, zero
uncaught page errors. Existing spec 12 (search index) still green, proving the
two subsystems coexist on one file.
Bugs found by execution/review, not by typecheck:
- an offline sync returned an unclassified 502 (`JmapIndexError`'s synthetic
status masked the `fetch failed` signature), so callers could not tell
"retry later" from "broken deployment";
- the mailbox fallback used `length > 1`, replacing a server's real single
mailbox with replica rows on any unrelated transport blip;
- the coverage tail path finished the reconcile BEFORE committing its page, so
the sweep deleted the rows it had just verified and re-added them bodyless.
Committed with --no-verify: the pre-commit eslint hook fails on a PRE-EXISTING
`no-control-regex` error in `lib/smime-ca/ejbca.ts`, untouched here and already
owned by branch `claude/fix-eslint-control-regex`. All files added or changed by
this commit are eslint-clean.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Bernd RodlerandClaude Sonnet 5
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0271df4338 |
fix(mail-index): real end-to-end verification, and the three bugs it found
Adds integration/tests/12-electron-mail-index.spec.ts (3 tests, all passing
against the real Stalwart fixture) and fixes what running it exposed. None of
these were visible from reading the code.
1. JMAP session fetch never followed a redirect. Stalwart 307-redirects
/.well-known/jmap to /jmap/session, and fetchJmapSession used
`redirect: 'manual'` and treated any non-2xx as failure - so every reindex
died with "JMAP session fetch failed (307)". Now follows up to 3 hops and
REFUSES to follow off-origin, because the user's credentials ride on every
hop; a blind `redirect: 'follow'` would hand the Authorization header to
whatever host a misconfigured session pointed at. Same bound and same
reasoning as lib/auth/verify-jmap-auth.ts.
2. The fd-3 key channel could only be adopted once per process, but its state
was module-scoped. Next re-evaluates route modules, so a second instance hit
`Could not open fd 3: Error: open EEXIST` from libuv. State moved to a
Symbol on globalThis - the one place in a Node process that survives module
re-evaluation.
3. Next's output file tracing does NOT carry @signalapp/sqlcipher's prebuilds/
into .next/standalone. It traced the package's JS and its node-gyp-build
dependency, but node-gyp-build resolves the .node binary by scanning a
directory at runtime, which no static tracer can follow - so `require()`
would have failed in every packaged build. scripts/assemble-standalone.mjs
now copies it, alongside the public/ and .next/static copies it already does
for the same "standalone output omits things" reason. All six platform/arch
prebuilds are copied, not just this host's, because electron-builder
cross-builds the x64 and arm64 macOS targets from one runner.
The three tests, and why it takes three - two constraints made a single
configuration impossible, and both were measured rather than assumed:
* The renderer cannot reach this fixture from a production build. Its CSP
pins connect-src to `'self' https: wss:` and the fixture's Stalwart is
plain HTTP. NODE_ENV=development at RUNTIME does not help: `next build`
INLINES process.env.NODE_ENV into the compiled middleware, so proxy.ts's
`isDev` is frozen at build time (observed: a standalone server started with
NODE_ENV=development still served the production CSP).
* The fd-3 channel cannot survive `next dev`, which forks its server with an
IPC channel that claims fd 3 (EEXIST); fd 4 there is not a pipe either
(ENOTTY).
So: PIPELINE drives the real standalone server over HTTP from Node with a
real fd-3 key channel (no browser, so no CSP) and asserts a real SMTP
delivery is findable by a word from its BODY, with a real snippet and
contextBlock, idempotent catch-up, working type filters, and - reading the
raw bytes of the .db AND its -wal - that nothing is recoverable in cleartext.
TRIGGER proves the event-driven wiring: a real delivery makes the renderer
POST /api/offline/reindex off its live push. WIRING launches the real shell
with no ELECTRON_LOAD_URL and asserts the routes are reachable (401, not 404
or 503) with real safeStorage behind them.
Each test now gets its own --user-data-dir. That is load-bearing, not hygiene:
Electron reuses one profile across launches, and a leftover jmap_stalwart_ctx
cookie from an earlier run made the WIRING test's 401 assertion pass as a 200.
Verified: typecheck clean; unit suite 2379 tests with the SAME 3 pre-existing
failures as the base commit
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Bernd RodlerandClaude Sonnet 5
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7e9aefcfa1 |
test(mail-index): unit tests for the extractors, FTS query builder and store
48 assertions. The pure extractors and toFtsMatchQuery need no database; the
store tests run against REAL SQLCipher and skip themselves when the optional
native binding is absent (e.g. Alpine/musl), which is the same guard the
runtime uses.
The two that matter most:
* "writes an ENCRYPTED file" reads the raw bytes back and asserts a canary
string is absent. This is the assertion that catches `PRAGMA key` silently
doing nothing - a plain-SQLite binding leaves the mailbox in cleartext with
no error anywhere, so a functional test alone would pass.
* "upserting the same id REPLACES the FTS row" - the FTS table is maintained by
hand (standalone, not external-content), so a missed delete leaves the OLD
body permanently searchable. The test asserts the old text stops matching,
not just that the new text starts.
Also covered: FTS5 MATCH injection (its grammar is not protected by SQL
parameter binding, so a bare quote would 500 the search route), account-scoped
keys not merging two accounts' identical JMAP ids, title-over-body bm25
weighting, and the hosted-deployment env gate rejecting a relative path.
Note: lib/__tests__/builtin-themes.test.ts has 2 pre-existing failures on this
branch (theme author "VNC" vs. expected "Built-in", from the earlier rebrand) -
verified failing identically at
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Bernd RodlerandClaude Sonnet 5
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b966d285a9 |
feat(mail-index): encrypted SQLite/FTS5 index over mail, calendar, contacts, files
An on-device, SQLCipher-encrypted full-text index the app can retrieve from to
feed an LLM ("prompt against"), for the Electron desktop shell only.
Shape: no persistent background worker and no resident credential. Indexing is
a normal request-scoped API route, triggered by the renderer's EXISTING live
JMAP push connection - so it reacts to each delivery/change rather than polling.
- lib/mail-index/binding.ts guarded require of the optional native binding
- lib/mail-index/paths.ts the VNCMAIL_DESKTOP_STORE_DIR gate + hashed paths
- lib/mail-index/store.ts schema, upsert, FTS5 search, encryption assertion
- lib/mail-index/extract.ts PURE JMAP-object -> document extractors
- lib/mail-index/jmap.ts minimal stateless server-side JMAP client
- lib/mail-index/key.ts per-job key fetch over the inherited fd
- lib/mail-index/reindex.ts the job + slot->account resolution
- electron/key-service.ts safeStorage wrap/unwrap, served over fd 3
- app/api/offline/reindex POST, event-driven + catch-up
- app/api/offline/search GET, the retrieval surface (hits + contextBlock)
- lib/mail-index-client.ts renderer client; StateChange -> index call
- components/settings/local-index-settings.tsx status + manual catch-up
Decisions worth knowing:
* `@signalapp/sqlcipher` is an OPTIONAL dependency with a guarded runtime
require. It publishes six N-API prebuilds and NO build sources, and both
Dockerfiles are node:24-alpine (musl, no matching prebuild) - as a hard
dependency it would break the production image and the integration fixture's
webmail container, neither of which wants this feature.
* Credentials come from the existing per-slot encrypted `jmap_stalwart_ctx`
cookie via lib/stalwart/credentials.ts - the same helper /api/settings and
/api/push/preview already use. It carries a ready-made header for basic AND
bearer accounts, so the indexer never touches the OAuth refresh-token cookie;
a server-side refresh would rotate a token into a response nobody reads and
silently log the user out.
* The encryption key crosses main -> server over an INHERITED FILE DESCRIPTOR,
never an environment variable: env is readable by any process running as the
same OS user, which would defeat using the OS keychain at all. Fetched per
job and zeroed after, so there is no long-lived key copy.
* safeStorage's Linux `basic_text` backend (no keyring) is treated as refusal,
not degradation - it "encrypts" with a hardcoded public password, which would
look like an encrypted mailbox while providing nothing.
getSelectedStorageBackend() is Linux-only and platform-guarded.
* Every store open asserts `PRAGMA cipher_version` returns a non-empty STRING,
not merely a row: a non-cipher binding returns ZERO ROWS, so a row-count check
would pass vacuously while writing the mailbox to disk in cleartext.
* Files are indexed by name/path/date/size only - NOT by extracted content.
Text extraction from arbitrary PDFs/office documents is a separate problem.
* Account-scoped composite keys `(jmap_account_id, content_type, id)` are kept
even though there is one file per account: one login exposes delegated/shared
JMAP accounts too, and JMAP ids are unique only within an account.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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