Xcode auto-generated localization strings for new UI elements:
- Camera/photo picker labels
- Voice recording UI strings
- Media attachment descriptions
These are legitimate new strings needed for the audio+image feature,
not just formatting changes.
- Added MacImagePickerView with NSOpenPanel for macOS
- macOS shows photo.circle.fill icon (no camera hardware)
- Opens native file picker for images (.png, .jpeg, .heic)
- Images processed through ImageUtils with EXIF stripping
- Simple sheet with Select/Cancel buttons
Cross-platform photo sharing now works:
- iOS: Tap for library, long-press for camera
- macOS: Tap for file picker
The Localizable.xcstrings file had massive formatting-only changes
(spacing: 'key' vs 'key :') that added 50K+ lines to the PR diff.
This was just Xcode reformatting with no actual string changes.
Reverted to main's version to keep PR focused on actual code changes.
CRITICAL: The PeerID version of _handleFragment was accessing
incomingFragments dictionary without collectionsQueue synchronization,
causing crashes when multiple BLE threads processed fragments concurrently.
Crash stack trace pointed to line 3431 (dictionary subscript) with:
'doesNotRecognizeSelector' - classic concurrent mutation crash.
Fix:
- Wrapped ALL incomingFragments/fragmentMetadata access in
collectionsQueue.sync(flags: .barrier)
- Matches the thread-safe pattern used in String version
- Separate cleanup into its own barrier block after reassembly
- Prevents concurrent dictionary mutations from multiple BLE threads
This is the same pattern as the String version (line 1128) which didn't crash.
Root cause: BinaryProtocol.decode() was rejecting decompressed payloads
larger than maxPayloadBytes (1 MB), but TLV-encoded file transfers are
slightly larger due to metadata overhead.
Fixes:
- Changed decompression limit from maxPayloadBytes to maxFramedFileBytes
- This accounts for TLV overhead (~50 bytes) + binary protocol headers
- Now allows ~1.12 MB decompressed payloads (1 MB + overhead budget)
The failing test was:
- Creating 1 MB file content
- TLV encoding adds ~50 bytes (1,048,627 total)
- Compression reduces to ~1,084 bytes (highly repetitive data)
- During decode, decompression was rejecting the 1,048,627 byte output
- Now correctly allows it since 1,048,627 < 1,179,760 (maxFramedFileBytes)
All 154 tests now pass including 'Max-sized file transfer survives reassembly'
Critical security fix addressing Codex review feedback:
The PeerID overload of handleFragment (which is actually called by
CoreBluetooth) was missing key safety checks that existed in the
String overload:
1. Added total <= 10000 check to prevent unbounded fragment counts
2. Added cumulative size check against FileTransferLimits before
storing each fragment
3. Prevents memory exhaustion DoS attacks via malicious fragment streams
This ensures the actually-used code path has proper bounds checking.
- Force .large detent for maximum height
- Hide drag indicator for cleaner look
- Use ignoresSafeArea to give camera full space
- Should show complete flash button and controls
- Set overrideUserInterfaceStyle = .dark on UIImagePickerController
- Changes white bars to black (much better looking)
- Camera controls and photo library also appear in dark mode
- Consistent dark appearance regardless of system settings
- Changed back to standard .fullScreen presentation
- Removed overFullScreen which was causing frame dimension errors
- Let iOS handle safe areas automatically (white bars are intentional)
- Reduces gesture gate timeout warnings
Note: White bars on notched devices are iOS default behavior for
UIImagePickerController. This respects safe areas for status bar
and home indicator. True edge-to-edge would require custom AVFoundation
camera implementation.
UX improvements:
- Tap camera icon → Photo library (common use case)
- Long press camera icon (0.3s) → Direct camera (quick photos)
- Removed action sheet entirely for cleaner flow
- Power users can long-press for instant camera access
This is more discoverable and eliminates an extra step in the UI.
- Changed modalPresentationStyle from .fullScreen to .overFullScreen
- This should eliminate white bars at top/bottom on notched devices
- Explicitly set showsCameraControls and cameraOverlayView for camera mode
- Change to fullScreenCover for immersive camera experience
- Add action sheet with 'Take Photo' and 'Choose from Library' options
- Renamed ImagePickerView to support both camera and library sources
- Both options open full-screen for better UX
- Updated accessibility label to 'Add photo' (more accurate)
- Change paperclip icon to camera icon for clearer affordance
- Open camera directly on tap (no confirmation dialog)
- Add CameraPickerView wrapper for UIImagePickerController
- Remove PhotosPicker in favor of direct camera access
- Images still processed through ImageUtils with EXIF stripping
- Accessibility: Added 'Take photo' label
- Fix critical EXIF privacy issue in iOS image processing
- Both iOS and macOS now use CGImageDestination for metadata stripping
- Shared encodeJPEG function ensures no GPS, camera, or metadata leaks
- Remove file transfer functionality to simplify PR scope
- Deleted FileAttachmentView
- Removed sendFileAttachment from ChatViewModel
- Removed file picker UI from ContentView
- Simplified attachment dialog to image only (iOS) or voice only
- Keep focused media features:
- Voice recording and playback
- Image sending with progressive reveal
- Binary protocol for media transfer
Expands location notes coverage to include 8 neighboring geohash cells,
creating a 3×3 grid around the user's current building-level location.
Changes:
- Add Geohash.neighbors() method to calculate 8 surrounding cells
- Update LocationNotesManager to subscribe to center + neighbors (9 cells total)
- Add NostrFilter.geohashNotes([String]) overload for multi-cell subscriptions
- Display '± 1' indicator in LocationNotesView header
Coverage:
- Single cell: ~38m × 19m
- 3×3 grid: ~114m × 57m total area
- Better discovery of nearby activity
Behavior:
- Subscribe: Fetches notes from all 9 cells (single efficient subscription)
- Post: Still uses center geohash only (correct privacy-preserving behavior)
- UI: Shows 'geohash ± 1' to indicate expanded coverage
Co-authored-by: jack <jackjackbits@users.noreply.github.com>
Simplifies geonotes architecture by eliminating all background subscriptions:
- Delete LocationNotesCounter.swift (104 lines) and related tests (58 lines)
- Remove background subscription system entirely
- Icon is now constant darker orange (indicates availability, not state)
- Subscription ONLY happens when user explicitly opens the sheet
- Total: ~220 lines of code removed
Privacy Benefits:
- Zero network traffic until user action
- No location leaking to relays via background polling
- User must explicitly opt-in to discover notes
The icon (note.text in orange) simply indicates the feature is available
when location permission is granted. Notes are only fetched when the
sheet is opened, prioritizing privacy over convenience.
Co-authored-by: jack <jackjackbits@users.noreply.github.com>
- Add check for full Xcode vs command line tools only
- Provide clearer error messages with setup instructions
- Verify Xcode is installed and properly configured
- Add better validation for development environment
Fixes issue where 'just run' fails with cryptic error when only
command line tools are installed. Now gives clear guidance on
installing full Xcode and configuring xcode-select properly.
Resolves#760
PhotosPickerItem has SDK availability issues on macOS in CI.
Change PhotosPicker from canImport(PhotosUI) to os(iOS) only.
macOS users can still import images via file importer (.fileImporter).
This is actually cleaner as macOS file picker is more familiar to users.
Fixes CI build failures.
PhotosPickerItem requires iOS 16+ / macOS 13+ but canImport(PhotosUI)
succeeds on older macOS versions. Add compiler version check to ensure
PhotosPicker code only compiles when actually available.
This fixes CI build failures on older macOS environments.
- Fix PhotosUI import order (must be after platform imports)
- Fix Data.WritingOptions.atomic reference
- Add identity derivation caching to NostrIdentityBridge
- Fix all remaining PeerID type conversions in ChatViewModel
- Fix ContentView body structure to use main's VStack layout
- Fix PaymentChipView API usage (now uses PaymentType enum)
Build and tests now passing.
- Remove duplicate NostrIdentityBridge and Bech32 from NostrIdentity.swift (now in separate files)
- Add caching to NostrIdentityBridge.deriveIdentity() for performance
- Remove duplicate NotificationStreamAssembler from BLEService.swift
- Remove duplicate function declarations in BLEService.swift
- Remove duplicate DeliveryStatusView and PaymentChipView from ContentView.swift
- Fix PeerID type conversions throughout (use .id for String, PeerID(str:) for wrapping)
- Update ContentView body to use main's simple VStack structure
- Fix NostrIdentityBridge instance method calls
- Remove privateChatView (replaced with sheet-based UI in main)
Build and tests passing (137/139 tests pass).
Fragment Reassembly Race Condition (CRITICAL):
- Wrap all incomingFragments/fragmentMetadata access in collectionsQueue.sync
- Prevents concurrent modification crashes from multi-threaded access
- Minimizes lock contention by doing heavy work (reassembly/decode) outside locks
- Add upper bound check: reject fragments with total > 10,000 (DoS prevention)
- Add cumulative size validation before storing fragments (memory DoS prevention)
File Cleanup Path Traversal (CRITICAL):
- Use NSString.lastPathComponent to extract filename safely
- Prevents directory traversal attacks via malicious filenames
- Add path prefix validation before file deletion
- Now checks both incoming and outgoing directories (fixes disk leak)
Additional Protections:
- Fragment assemblies now limited by both count (128) and cumulative bytes (1MB)
- Explicit checks for "." and ".." filenames in cleanup
- Defense-in-depth: multiple validation layers
- Reduce sample rate from 44.1 kHz to 16 kHz (telephony standard)
- Lower bitrate from 32 kbps to 20 kbps
- Results in ~37% file size reduction (~150 KB/min vs 240 KB/min)
- Increases max voice note length from 4.4 to 7 minutes over 1 MiB BLE limit
- Maintains excellent voice quality using native AAC-LC codec
- Mark non-localizable strings with Text(verbatim:) to prevent extraction
- Update UI strings to lowercase per style guide (open, save, close, recording)
- Add complete translations for all 29 languages (194/194 strings at 100%)
- Remove empty/duplicate entries (@, bitchat/, Open, Recording %@)
- Add proper localization comments for all user-facing strings
Fix: /clear command and panicClearAllData() now properly delete media files
1. /clear (triple-tap on chat):
- Deletes outgoing media (voice notes, images, files)
- Conservative: only our sent media, preserves received media
- Runs in background to avoid UI freeze
2. panicClearAllData() (triple-tap on bitchat/ header):
- Deletes ALL media files (incoming + outgoing)
- Removes entire files directory and recreates structure
- Ensures complete data wipe for emergency scenarios
Both operations run async on .utility queue to prevent blocking UI.
Aggressive performance optimization to prevent UI freezes:
Problem: Even with async loading, creating 10+ VoiceNotePlaybackController
instances simultaneously (when scrolling past multiple voice notes) spawned
20+ concurrent background tasks, potentially starving main thread.
Solution - Ultra-lazy loading:
1. VoiceNotePlaybackController.init() now does ZERO work
- No duration loading
- No player creation
- Instant initialization
2. Duration loaded on-demand via public loadDuration() method
- Called from VoiceNoteView.onAppear after 150ms delay
- Reduced priority: .utility instead of .userInitiated
- Guard prevents duplicate loading
3. Waveform loading also deferred 150ms
- Gives UI time to settle after message appears
- Prevents task storms when multiple voice notes appear
This spreads the work over time instead of all at once.
Additional optimization for location channels (voice notes are mesh-only,
but this helps with text message rendering in geohash channels):
- Add cachedGeohashIdentity to avoid deriveIdentity calls during rendering
- Check cache before falling back to crypto derivation
- Reduces main thread crypto work in location channels
Critical performance fix:
Problem: formatMessageHeader() called deriveIdentity(forGeohash:) during
every SwiftUI render for every media message. Each call performed:
- Keychain I/O (getOrCreateDeviceSeed)
- HMAC-SHA256 computation
- Up to 10 secp256k1 key validations (elliptic curve crypto)
With multiple media messages, this resulted in 100s of milliseconds of
blocking crypto on main thread per render cycle.
Solution: Add thread-safe cache for derived identities
- Check cache before expensive crypto operations
- NSLock protects concurrent access
- Identity is deterministic per geohash, so caching is safe
This eliminates crypto from the hot rendering path.
Critical performance fix for UI freezes when receiving media:
Problem: mediaAttachment(for:) was called during every SwiftUI render,
performing synchronous disk I/O on main thread:
- FileManager.fileExists() called 2-6x per message (checking subdirs)
- applicationFilesDirectory() creating directories on every call
- With multiple media messages, this meant 20-100+ disk ops per render
Solution:
1. Remove fileExists checks - construct URLs directly
- Files are validated during playback/display (fail gracefully if missing)
- Sender determines subdirectory (outgoing vs incoming)
2. Cache applicationFilesDirectory() result
- Static cache prevents repeated FileManager.url() calls
- Directory created only once
3. Remove redundant playback.replaceURL() in VoiceNoteView.onAppear
- Controller already initialized with correct URL
This eliminates ALL disk I/O from the view rendering hot path.
Fixes:
1. Post-playback freeze: audioPlayerDidFinishPlaying now dispatches to main
thread before updating @Published properties (Swift concurrency violation)
2. Unbounded waveform cache: Implement LRU eviction with 20-entry limit
- Track last access time for each cached waveform
- Evict oldest entry when cache is full
- Prevents unlimited memory growth as voice notes accumulate
3. Audio buffer memory leaks: Wrap computeWaveform in autoreleasepool
- AVAudioPCMBuffer allocations are autoreleased
- Pool ensures buffers are freed promptly
4. Image processing memory: Add autoreleasepool around compression loops
- Each jpegData() call creates temporary objects
- Inner pool per iteration prevents memory spikes during quality search
Memory should now remain stable during extended use.
Problem: AVAudioPlayer initialization in VoiceNotePlaybackController.init()
was running synchronously on main thread during view creation, blocking
UI for 50-200ms per voice note.
Solution:
- Remove eager preparePlayer() call from init
- Load duration asynchronously on background queue
- Player is only prepared when playback is actually requested via ensurePlayerReady()
This prevents UI freezes when voice notes appear in the chat.
jack