AGP 9's consistent resolution shares the runtime serialization version with the
androidTest classpath, where androidx.savedstate pins it to 1.7.3. Room 2.8's
schema-bundle serializers are compiled against >= 1.8.0, so MigrationTestHelper
threw AbstractMethodError on GeneratedSerializer.typeParametersSerializers(),
failing every E2E job. Import the serialization BOM as a platform to force 1.8.1.
Verified on-device (API 37): Migration9To10Test fails unpatched, passes patched.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Brings the screen-lock app gate (#22) up to date with 25 commits of main
(signatures, backup opt-in, battery optimization, rich compose, reporting).
Conflicts resolved as a union of both features:
- SettingsRepository: adopt main's top-level Keys + shared toAppSettings()
refactor and thread appLock through it; keep both appLock and includeInBackup
- DatabaseModule: keep provideSignatureDao; keep DatabaseFiles.NAME for DB_NAME
- MainActivity: wrap LibreMailApp(pendingCompose=...) inside AppLockGateHost
- SettingsViewModel/SettingsScreen: union app-lock and battery state/effects;
keep LocalResources for the app-lock toast (LocalContextGetResourceValueCall lint)
- SettingsScreenTest: construct SettingsViewModel with the merged 5 args
- strings.xml: keep both the app-lock and battery/diagnostics string blocks
Fast gate green with JDK 21: assembleDebug + testDebugUnitTest + lintDebug +
compileDebugAndroidTestKotlin.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Replace the fixed 50-message-per-folder header cap with a background,
resumable full-history backfill, and add a user-configurable device-only
retention limit that prunes local mail beyond it without ever deleting from
the server.
- ImapClient.fetchOlderThan pages a folder backwards in bounded batches,
locating the boundary by binary search over message numbers (O(log n) tiny
UID fetches, memory bounded to one batch).
- MailBackfiller + BackfillWorker page each synced folder newest→oldest,
persisting a per-folder boundary in a new backfill_progress table so a run
interrupted by process death / network loss resumes exactly where it stopped.
Runs off the sync mutex, so foreground sync / pull-to-refresh stay responsive.
- MailSyncer now reconciles server deletions only within the recent UID window
(deleteSyncedInWindowNotIn) instead of wiping everything outside the recent
50, so backfilled history survives each foreground sync. A materialized
messages.uid column powers the windowed reconcile and backfill boundary.
- Body/attachment prefetch still honours FetchPolicy (headers first).
- Per-account count/age overrides (nullable) with a global default; 0 = keep
everything (the default, matching #12).
- MailPruner + PruneWorker delete local rows beyond the limit (cascading
attachment rows + on-disk cache), never issuing a server delete. Deletes are
chunked under SQLite's 999-parameter limit.
- Precedence with backfill: backfill pauses (does not complete) at the
retention floor and both jobs share a maintenance mutex, so they never
contend; foreground fetch is also capped by the count so it can't re-download
what pruning just trimmed.
- Settings UI for the global default and per-account override, with copy making
clear it is device-only, not the server.
Room schema v9→v10 (migration + exported schema + MigrationTestHelper test).
GreenMail tests prove the backfill caches >50 and resumes after interruption;
pruning tests cover count/age limits and never touch the server.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Add a guided, F-Droid-safe onboarding step and an Advanced Settings recovery
row that let users move LibreMail to "Unrestricted" battery usage, so IMAP
IDLE push (IdleService) and periodic WorkManager sync aren't throttled or
killed by Doze. Deep-links to the system app-details screen rather than the
restricted REQUEST_IGNORE_BATTERY_OPTIMIZATIONS dialog, so it needs no new
permission and is safe on Play (#17) and F-Droid (#16).
- BatteryPromptDecision: pure, unit-tested gate (supported && !unrestricted && !handled)
- BatteryOptimizationManager: reads isIgnoringBatteryOptimizations, builds the deep-link intent
- Onboarding step shown after the first account is added; skipped when already
unrestricted or already handled; re-checks status on resume
- Advanced Settings row shows current status and re-opens the system screen
- battery_prompt_handled flag persisted in the settings DataStore (kept out of AppSettings)
- Unit tests for the decision + view model; Espresso E2E for the step
Closes#49
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Add an opt-in "Require screen lock" setting that gates the whole app behind
BiometricPrompt (strong biometric with device-credential fallback) and binds
the encrypted cache's SQLCipher passphrase to user authentication.
- App-lock gate: AppLockGateHost wraps the app; a pure AppLockGate state machine
locks on cold start / resume-after-timeout and unlocks on auth.
- Auth-bound decrypt: DatabaseKeyCipher seals the DB passphrase with a Keystore
key requiring user auth (setUserAuthenticationRequired, time-bound validity,
setInvalidatedByBiometricEnrollment). PassphraseSession holds the unwrapped
passphrase in memory; provideDatabase reads it only after auth.
- The non-auth master key (KeystoreCrypto) is unchanged, so background credential
access (IDLE push) still works.
- Invalidation / lock removal: KeyInvalidationPolicy decides clear-vs-disable;
the cache is wiped only at cold start in provideDatabase (never while Room holds
it open) via a persisted flag + process restart, then re-synced. No corruption.
- Enabling requires a secure device lock; disabling reseals the passphrase back
under the master key first (guarded to avoid a passphrase mismatch).
Adds androidx.biometric; MainActivity becomes a FragmentActivity (required by
BiometricPrompt). JVM tests cover the gate state machine, invalidation policy,
and passphrase session; the Keystore/BiometricPrompt/restart paths are
device-only.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
AGP 9.2 does not support JDK 25; committing the daemon-JVM criteria makes
every contributor's Gradle daemon run on JDK 21 regardless of JAVA_HOME.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Wire ktlint-gradle 14.2.0 and detekt 2.0.0-alpha.5 (the only detekt line
with Gradle 9 support) through the version catalog.
- .editorconfig: official Kotlin style, 120-col limit, @Composable exempt
from function-naming.
- config/detekt/detekt.yml: slim overrides on detekt's defaults —
@Composable exemptions for the OOP-era metrics, sane ReturnCount /
ThrowsCount / TooManyFunctions thresholds, and TooGenericExceptionCaught
off at the resilient network/push boundaries (which now log).
Findings fixed in code (behaviour-preserving; 81 unit tests still pass):
- SwallowedException: SendWorker / IdleService now log the caught exception.
- roleOf (Folder) and extractBody (ImapClient) split into named helpers.
- MailSyncer: hoisted a 4-condition `if` into a named val.
- TopDest extracted to its own file; ~14 magic numbers -> named constants.
The remainder is the ktlint auto-format across the module.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The reader rendered HTML emails as black-on-black in dark mode: the WebView
background was transparent (so the near-black app surface showed through) and the
injected CSS set no text or background color, so the WebView fell back to its
default black text.
Wrap each email with explicit, theme-derived background, text, and link colors
(surface / onSurface / primary) plus a matching color-scheme, set the WebView
background to the surface color, and allow WebView algorithmic darkening where
supported as a backstop for emails that hardcode their own foreground colors.
Add JVM contrast guards: HtmlBodyTest pins the wrapper's readability contract
(explicit colors meeting WCAG AA), and ColorSchemeContrastTest audits the
fallback light/dark Material schemes' role pairs.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Folder view: a left navigation drawer lists each account's IMAP folders;
tapping one browses and caches that folder's mail. IMAP UIDs are unique only
within a folder, so message identity, the fetch/read/flag/delete paths, sync,
and the Room cache all became folder-aware (id = "accountId:folder:uid"; new
`folder` column; schema v7->v8). Standard folders (Inbox/Sent/Drafts/Spam/Trash/
Archive) surface with friendly names + icons via RFC 6154 SPECIAL-USE attributes
with a case-insensitive name fallback; the multi-account drawer adds an account
switcher and a unified "All Inboxes". INBOX stays the only auto-synced,
IDLE-watched, notifying folder; other folders sync on demand.
Lower minSdk 33 -> 29 for a rolling ~7-year Android support window; guard the
API-33 POST_NOTIFICATIONS runtime request accordingly.
Tests and CI:
- Bump espresso-core 3.6.1 -> 3.7.0 so Compose UI tests run on API 37
(3.6.1's InputManagerEventInjectionStrategy reflects a removed hidden method).
- New coverage across layers: FolderRoleTest, ImapClientTest folder cases,
MailboxViewModelTest, MailRepositoryImplTest folder routing, a FolderDrawer
Compose UI test, and LibreMailDatabaseTest folder DAO/reconcile tests.
- Gradle Managed Devices + a CI E2E matrix over every API 29-36; a single
"CI passed" gate job fans in all jobs and is required by branch protection.
- Non-blocking, custom-provisioned API 37 (preview) E2E job with image caching.
- Build + unit-test jobs run on arm64 (ubuntu-24.04-arm); emulators stay x86_64.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
From a whole-repo security review (no critical/high issues; TLS cert and
hostname validation were already intact):
- Don't offer the plaintext "None" transport in manual account setup; it
would send credentials in the clear. The enum value stays only for local
test servers.
- Relabel the advanced toggle "Allow insecure STARTTLS fallback" with a
warning subtitle: it relaxes (does not enable) STARTTLS and permits a
plaintext downgrade when on. Default stays off/secure.
- Set mail.<proto>.ssl.checkserveridentity=true explicitly on IMAP/SMTP as
insurance over the (already-true) Angus default.
- Add a Content-Security-Policy meta to the reader WebView (JavaScript is
already disabled).
- Strip Log.d/Log.v in release builds and drop the account address from the
IDLE log; mark new-mail notifications VISIBILITY_PRIVATE.
Add opt-in at-rest encryption of the Room cache (Settings -> "Encrypt local
cache", off by default) using SQLCipher. The DB passphrase is a random key
sealed by the existing Keystore crypto and kept in a separate DataStore.
DatabaseEncryption performs a self-healing, atomic plaintext<->encrypted
migration at startup that preserves PRAGMA user_version, so toggling applies
on next launch without data loss.
Verified end-to-end on an API 37 emulator (DatabaseEncryptionTest round-trip,
7 instrumented tests) plus 12 unit tests and a release R8 build.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Increment 3 — receive.
- ImapClient.fetchRecentInbox pulls recent INBOX headers (ENVELOPE/FLAGS/UID)
over IMAP (password or XOAUTH2) into FetchedMessage.
- MailSyncer orchestrates per-account fetch -> Room (replace-per-account),
refreshing and re-persisting the Gmail OAuth token when needed.
- WorkManager background sync via a @HiltWorker (periodic 15-min + an expedited
one-shot after adding an account); Application supplies the HiltWorkerFactory
and the default WorkManager initializer is removed.
- Mailbox renders real cached mail with pull-to-refresh and proper empty states
(welcome/add-account vs no-messages); the sample-data crutch is removed.
- Shared entity mappers; MessageDao.replaceAccountMessages transaction.
- Tests: GreenMail-backed fetchRecentInbox unit test (deliver via SMTP, read via
IMAP, newest-first). Instrumented Keystore + Angus-provider tests stay green on
the Android 17 emulator, where the SyncWorker also runs to SUCCESS.
- Add error_prone_annotations to the compile classpath (Hilt/Dagger codegen).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Increment 2 — authentication and account management.
- Gmail OAuth 2.0 via AppAuth (Authorization Code + PKCE, restricted
https://mail.google.com/ scope); redirect scheme derived from the client id.
- Generic IMAP/SMTP manual setup (host/port/security) with an Advanced section.
- Angus/Jakarta Mail IMAP client (password + XOAUTH2); "test connection" logs in
and lists folders before an account is saved.
- Android Keystore-backed AES-256-GCM credential store (encrypts the OAuth
AuthState / IMAP password); accounts + secrets persisted in Room (schema v2).
- AccountRepository + Hilt wiring; Settings accounts list (add / remove).
- Tests: GreenMail-backed IMAP client unit test; instrumented Keystore round-trip
and Angus Mail provider-resolution tests (green on the Android 17 emulator).
- Remove the placeholder Compose smoke test (the API 37 Compose-UI-test library
hits InputManager.getInstance); on-device rendering verified via screenshots.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Initial scaffold for LibreMail, a free and open-source (GPL-3.0) Android email
client. This increment delivers a buildable, runnable, themed app shell on top
of the full architecture skeleton; account sign-in, IMAP/SMTP sync and sending
arrive in later increments.
- Gradle 9.6 + AGP 9.2 + Kotlin 2.4.0 (AGP built-in Kotlin via the buildscript
classpath; KSP, no KAPT); version catalog; minSdk 33, target/compile SDK 37
- Jetpack Compose + Material 3 with Material You dynamic color, light/dark and
edge-to-edge; adaptive, themed launcher icon
- Navigation across Inbox, Reader, Compose, Settings (with an Advanced Settings
group) and Account Setup
- Hilt DI, Room cache (entities/DAOs/database), domain models, and a
MailRepository as single source of truth with a sample-data fallback
- Unit tests (repository + sample data) and a Compose smoke test
- GPL-3.0 LICENSE, SPDX headers, README with build and Gmail OAuth setup steps
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
JMR-dev
