Commit Graph
4 Commits
Author SHA1 Message Date
jevb 4c4526e539 fix: security hardening — 45 issues from full-project Copilot audit
Critical (6):
- C1: SQL injection in VACUUM INTO backup path — strict character allowlist
- C2: Unlimited binary download in updater — 500MB LimitReader
- C3: JSON injection in SSE log stream — json.Marshal instead of concat
- C4: CSS injection via custom themes — reject () and {} in values
- C5: Silent DM message loss — error response on participant lookup failure
- C6: LiveKit URL credential leak — strip creds from diagnostics endpoint

High (11):
- H1: DB errors no longer trigger login rate-limit lockout
- H2: Permission fetch failure returns 500, not empty channel list
- H3: TOCTOU race on duplicate WS — atomic check-and-register in hub
- H5: LiveKit webhook verifies voice channel match (already implemented)
- H7: Server host address validated before storage (hostname regex)
- H8: WS message deduplication on reconnect replay (1000-entry Set)
- H9: Admin setup endpoint rate limited (5/min/IP)
- H10: Backup responses return filename only, not full path
- H11: Update binary recovery failure now alerts admin

Medium (17):
- M1: MIME type from magic bytes, not client header
- M3: Nil guard on DM broadcast recipient
- M5: LiveKit process run-done channel race fixed
- M6: Backup restore calls fsync before close
- M7: Partial download file cleaned up on error
- M8: Admin CSP uses nonce instead of unsafe-inline
- M9: Client rate limiter enforced for presence_update
- M10: Voice joinedAt not reset on double-join
- M11: Unread count skips increment during reconnect replay
- M13: Category type uses exact match, not substring
- M14: Storage LimitReader off-by-one fixed
- M15: GitHub token only sent to GitHub hosts
- M16: Content-parser ReDoS regex replaced with split approach
- M17: Audio device switch error handling added

Low (11):
- L1: CORS uses configured origins instead of wildcard
- L2: HSTS header added when TLS enabled
- L3: Consistent JSON error responses across all endpoints
- L4: File modtime from stat, not time.Now()
- L5: Malformed invite JSON returns 400
- L6: TouchSession failure logged at warn
- L8: MessageInput timers cleared on destroy
- L9: Log persistence flush errors caught
- L10: Credential save failure surfaced to user
- L11: Case-insensitive asset name matching in updater

Found by GitHub Copilot full-project review (claude-sonnet-4.6 + claude-haiku-4.5).
2026-03-29 12:35:04 +02:00
jevb 76cb9b9630 fix: security hardening, DM auth, LiveKit stability, and voice call timer
Security fixes (from multi-reviewer code review):
- Add DM participant auth checks to channel_focus, typing, and REST
  message endpoints — prevents unauthorized access to DM channels
- Fix TOCTOU race in GetOrCreateDMChannel using IMMEDIATE transaction
- Validate YAML credentials before LiveKit config interpolation
- Add CSS variable injection prevention in custom theme loader
- Validate localStorage JSON before unsafe type casts

LiveKit stability:
- Track remote mic audio elements for cleanup on abnormal disconnect
- Remove duplicate token refresh timer scheduling
- Add .catch() to all floating applyMicMuteState promises
- Clear reconnectAc after async post-connect work completes
- Fix double cmd.Wait() race in LiveKit process Stop()
- Reorder voice_join guards: validate channel before livekit==nil check
- Add startup warning for external LiveKit webhook CIDR mismatch

DM system fixes:
- Emit dm_channel_close WebSocket event from REST close handler
- Re-open DM for caller when channel already exists
- Fix unread count incrementing for own messages and active DMs
- Reset channelBeforeDm after Back navigation (stale state bug)

New feature:
- Voice call duration timer in VoiceWidget (MM:SS / HH:MM:SS elapsed)
- Accent color restored on app startup (was only applied in settings)

Test infrastructure:
- Add DM tables to all test schemas (hubTestSchema)
- Inject test LiveKit client in voice handler tests (fixes 28 failures)
2026-03-27 16:14:54 +01:00
jevb 99dd25ec9a feat(server): add DM REST endpoints, WebSocket routing, and ready payload
Task A: REST API endpoints in api/dm_handler.go — POST /api/v1/dms
(create/get DM channel), GET /api/v1/dms (list open DMs), DELETE
/api/v1/dms/{channelId} (close DM). Routes registered in router.go.

Task B: WebSocket DM routing — handleChatSend, handleChatEdit,
handleChatDelete, and handleReaction all check channel type and use
participant-based auth for DM channels instead of role permissions.
DM messages delivered via SendToUser to each participant (bypassing
channel-subscription model). Auto-reopens DM for recipient on new
message with dm_channel_open event. New broadcastToDMParticipants
helper. New WS event types: dm_channel_open, dm_channel_close.

Task C: Ready payload includes dm_channels from GetUserDMChannels.
Also adds GetDMParticipantIDs helper to db/dm_queries.go.
2026-03-27 13:58:48 +01:00
jevb e938a80ac8 feat(server): add DM schema migration and database query layer
Add migration 008 with dm_participants and dm_open_state tables.
Add dm_queries.go with GetOrCreateDMChannel, GetUserDMChannels,
OpenDM, CloseDM, IsDMParticipant, and GetDMRecipient functions.
2026-03-27 13:46:06 +01:00