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>
- Turn on minification for the release build and sign it with the debug key so it is
installable for testing (a public release would use a dedicated keystore).
- proguard-rules.pro keeps the reflection-heavy mail/auth stack: Jakarta/Angus Mail
(IMAP/SMTP providers resolved via reflection + service files) and AppAuth.
- Verified on the Android 17 emulator: the release APK builds with R8, installs, and
syncs mail over IMAP — confirming Angus Mail's provider resolution survives shrinking.
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-devandClaude Opus 4.8