Commit Graph
10 Commits
Author SHA1 Message Date
70229f0be1 Originate v2 source routes and wire fragmentIdFilter targeted resync (#1378)
* Originate v2 source routes and wire fragmentIdFilter targeted resync

Part A — source-route origination policy:
- Gate route application (BLESourceRouteOriginationPolicy): only packets we
  author, directed at a single peer, with TTL headroom, whose recipient is
  not directly connected. Relays no longer attach routes to (and re-sign)
  packets they merely forward.
- Version-gate paths: MeshTopologyTracker records the highest protocol
  version observed per peer; BFS routes require every intermediate hop and
  the recipient to be v2-observed, capped at 4 intermediate hops.
- Degrade on failure: BLESourceRouteFailureCache marks a routed send that
  sees no inbound traffic from the recipient within 10s as failed and floods
  for 60s before retrying routes.

Part B — REQUEST_SYNC fragmentIdFilter (TLV 0x06):
- Requester: BLEFragmentAssemblyBuffer reports stalled broadcast
  reassemblies (no new fragment for 5s, retried at most every 10s); the
  maintenance pass sends a types=fragment REQUEST_SYNC naming the stalled
  8-byte fragment stream IDs to each connected peer.
- Responder: GossipSyncManager restricts the fragment diff to exactly the
  named streams, bypassing the since-cursor while the GCS filter still
  excludes pieces the requester holds; RSR/TTL-0/rate-limit semantics
  unchanged and REQUEST_SYNC stays link-local.
- Bounds: at most 60 IDs per request (60*17-1 = 1019 bytes <= the 1024-byte
  decoder cap); oversized 0x06 values are ignored, not fatal.

Docs: SOURCE_ROUTING.md gains the iOS origination policy (§8);
REQUEST_SYNC_MANAGER.md documents 0x05/0x06 as implemented.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* Fix stall-clock refresh on duplicates and overflow suppression in fragment resync

Two fixes to stalledBroadcastFragmentIDs bookkeeping in
BLEFragmentAssemblyBuffer:

- Duplicate fragments no longer reset the stall clock. Fragment packets
  bypass the packet deduplicator, so relayed duplicates of an
  already-held index arriving every few seconds kept lastFragmentAt
  fresh and suppressed the targeted REQUEST_SYNC indefinitely. Now
  lastFragmentAt only updates when the index is new (actual progress).

- Only the streams that will actually be encoded on the wire are
  rate-limited. Previously every stalled candidate got
  lastResyncRequestAt set, but encodeFragmentIdFilter serializes at most
  RequestSyncPacket.maxFragmentIdFilterCount (60) IDs, so overflow
  streams were suppressed for retryAfter without ever being requested.
  Selection now caps at that shared constant, oldest stall first, so
  overflow stays eligible and rotates fairly on the next pass.

Tests: duplicates arriving periodically still trigger the stall report;
70 stalled streams yield the 60 oldest on the first pass and the
remaining 10 on the next.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: jack <jackjackbits@users.noreply.github.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-07 14:42:53 +02:00
60be88a4f5 Geohash bulletin board: persistent signed notices over mesh sync (#1379)
* Add geohash bulletin board: persistent signed notices over mesh sync

New MessageType 0x23 carries TLV-encoded board posts and tombstones,
self-signed with the author's Ed25519 key ("bitchat-board-v1" /
"bitchat-board-del-v1" domains) so notices verify without the author
present. BoardStore persists raw signed packets under Application
Support/board/ (200 posts, 5 per author, oldest evicted; expiry sweep;
tombstones retained until the deleted post's original expiry) and is
wiped on panic.

Board packets join gossip sync as bit 8 of the existing variable-length
types bitfield (a second byte old decoders already accept and ignore),
with a 60s round and its own capacity, served straight from the board
store so retention has one owner. Posts relay like broadcasts; urgent
posts get the announce-class TTL cap.

UI: a pin button in the header opens the board for the current channel
(geohash board, or mesh-local board), with urgent-pinned newest-first
listing, compose with urgent toggle and 1/3/7-day expiry, and
swipe-delete on own posts. Geohash posts also publish one-way as
Nostr kind-1 location notes when relays are reachable.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* Board: bound orphan tombstones and reject future-dated posts at ingest

Two hardening fixes from Codex review of the geohash bulletin board:

- Orphan tombstones (P1): retention was derived solely from the
  sender-chosen deletedAt, so self-signed tombstones for unseen post IDs
  with far-future deletedAt persisted and re-entered sync unboundedly.
  Retention is now also clamped to receive time (now + 7d + 1h skew --
  no post can outlive that), and orphans are capped at 100 globally and
  5 per author key with oldest-received evicted first. Matched
  tombstones and disk restores keep their existing behavior.

- Future-dated posts (P2): ingest only checked expiresAt > now, letting
  posts dated years ahead sort above honest posts and squat the 200
  global slots without ever pruning. The single ingest chokepoint
  (radio, sync, and disk restore all funnel through it) now rejects
  createdAt > now + 1h skew and expiresAt > now + 7d + 1h skew; the
  decoder's span rule is unchanged.

Adds tests for the skew boundary, far-future expiry, receive-time
tombstone clamping, orphan caps/eviction, and matched-tombstone
exemption.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: jack <jackjackbits@users.noreply.github.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-07 14:13:25 +02:00
201dbac49a docs: reconcile protocol docstrings with implementation (#1374)
- BitchatProtocol.swift: stop advertising "timing obfuscation prevents
  traffic analysis" — what exists is randomized relay jitter
  (RelayController, 10-220 ms) and PKCS#7-style padding to
  256/512/1024/2048-byte blocks (MessagePadding); there is no cover
  traffic or per-message timing obfuscation. Also update the stale
  Message Types list (Delivery/Read are Noise payloads, no Version
  negotiation type; add CourierEnvelope/RequestSync/FileTransfer).
- MessageType.swift: header said "6 essential" types; the enum has 9
  cases.

WHITEPAPER.md needed no changes: the #1372 rewrite already replaced the
old Bloom-filter and MessageRetryService claims, and its numbers
(dedup 1000/5min, jitter, outbox 100/peer 24h 8 attempts, courier
16 KiB/24h/40-20-5-2 quotas, spray 4/8, gossip 1000/15s/6h) all match
the code.

Co-authored-by: jack <jackjackbits@users.noreply.github.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-07 14:10:58 +02:00
5fdc15d5af Add capability bits to announce TLV (#1375)
Announces now carry an optional capabilities TLV (0x05): a little-endian
bitfield with named bits for upcoming features (prekeys, wifiBulk,
gateway, groups, board, vouch, meshDiagnostics). Old clients skip the
unknown TLV; peers without it decode as nil so features can distinguish
"legacy peer" from "advertises nothing".

PeerCapabilities lives in BitFoundation with a minimal-length encoding
that preserves unknown bits for forward compatibility. Peer capabilities
are stored in the BLE peer registry on verified announce and exposed via
BLEService.peerCapabilities(_:). The local advertisement set is empty
until each feature ships its bit.

Co-authored-by: jack <jackjackbits@users.noreply.github.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-07 14:07:52 +02:00
7341696280 Expand store-and-forward: open couriers, spray-and-wait, persistent outbox, 6h public history (#1372)
Store-and-forward previously delivered to an out-of-range peer only if a
mutual favorite happened to be connected at send time and later met the
recipient directly, and everything except courier envelopes died with the
app process. This closes those gaps end to end:

- Persist the MessageRouter outbox to disk, sealed with a ChaChaPoly key
  held only in the Keychain (no plaintext at rest); queued private
  messages now survive an app kill and flush on next launch.
- Deposit retry: queued messages are re-deposited whenever a new eligible
  courier connects, tracked per message so the same courier is never
  double-burned, until 3 distinct couriers carry it or it expires.
- Tiered open couriering: signature-verified strangers can now carry mail
  (2 envelopes/depositor into a 20-slot pool) alongside mutual favorites
  (5 each); overflow evicts verified-tier mail before favorites'.
- Spray-and-wait: envelopes carry a copy budget (4, capped 8, new TLV,
  wire-compatible with old clients); couriers split half their remaining
  budget with each newly encountered courier so mail diffuses through a
  moving crowd.
- Remote handover: a verified relayed announce now floods a copy toward
  the multi-hop recipient (directed-relay treatment, 10-min per-envelope
  cooldown) while the carried original stays put for a direct encounter.
- Public history: gossip-sync window for whole public messages widened
  from 15 min to 6 h, matched on the receive-acceptance side, and the
  message store persists to disk so devices bridge partitions and
  restarts ("town crier").
- Privacy-safe local delivery counters (bare tallies, log-only) so the
  store-and-forward stack is measurable on-device.
- Panic wipe now also clears the sealed outbox, gossip archive, and
  counters.
- Rewrite WHITEPAPER.md to describe the app as implemented (Noise XX/X,
  actual flood control, courier system, gossip sync, Nostr path); the old
  document described a bloom filter, three fragment types, and a
  MessageRetryService that don't exist.

1037 macOS tests pass (17 new); iOS builds.

Co-authored-by: jack <jackjackbits@users.noreply.github.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-06 19:33:16 +02:00
75da63c9d7 Fix favorites end-to-end: peer-list duplicates, Nostr sync, /fav key corruption (v1.5.4) (#1367)
* Friend-courier store-and-forward: mutual favorites carry sealed messages to offline peers

When a private message has no reachable transport, the router now seals it
to the recipient's Noise static key (new one-way Noise X pattern) and hands
the envelope to up to three connected mutual favorites. Couriers store the
opaque ciphertext under strict quotas (20 total, 5 per depositor, 16 KiB,
24 h) and hand it over when the recipient's announce matches a rotating
HMAC recipient tag; the recipient opens it and the message flows through
the normal private-message pipeline, so dedup and delivery acks just work.

- CourierEnvelope TLV + courierEnvelope (0x04) message type in BitFoundation
- Noise X one-way pattern reusing the existing handshake machinery,
  domain-separated by a courier prologue; sender identity authenticated
  via the ss DH (no forward secrecy - documented tradeoff)
- CourierStore with eviction, file persistence, and panic-wipe integration
- Rotating recipient tags (HMAC over epoch day) so carried envelopes don't
  correlate for observers who don't already know the recipient's key
- New "carried" delivery status with figure.walk glyph; header indicator
  while carrying mail for others
- Three-node end-to-end test ferrying packets through real BLEService
  instances, plus codec/crypto/store/router suites (986 tests green)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* Fix courier handoff verification and directed sends

* Authenticate courier deposits by ingress peer

* Gate courier handover on direct announces and isolate store test

Envelopes are removed from the courier store optimistically, so releasing
them on a relayed (multi-hop) announce risks losing carried mail to a
speculative flood that never reaches the recipient. Handover now also
requires the announce to have arrived directly (full TTL), i.e. an actual
encounter with a live link; regression test builds a relayed copy of a
genuinely signed announce (TTL is excluded from announce signatures).

Also make CourierStore's on-disk location injectable so the persistence
test round-trips through a temp directory instead of wiping the real
Application Support store, and reattach BLEAnnounceHandler's doc comment
to the class it describes.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* Use Xcode-bundled Swift in CI instead of a standalone toolchain

The unpinned setup-swift action installs Swift 6.1, which refuses the
SDK on runner images that have rolled to Xcode 26.5 ("this SDK is not
supported by the compiler"). Jobs passed or failed depending on which
image they landed on. The Xcode-bundled toolchain always matches the
image's SDK, and matches local development. Cache keys now include the
toolchain version so artifacts from one compiler are never restored
into builds with another.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* Drop couriered mail from blocked senders at envelope open

The UI-layer block check (isPeerBlocked in the transport event
coordinator) resolves a fingerprint from the live session or peer list,
but a couriered message arrives precisely when its sender is absent —
no session, no registry entry — so the check failed open and a blocked
identity's mail was delivered anyway. Gate in openCourierEnvelope,
where the sealed sender's full static key is in hand.

End-to-end test ferries a full deposit→carry→handover round and
verifies the envelope from a blocked sender never reaches the delegate
(confirmed failing without the gate).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* Fix favorites end-to-end: peer-list dedup, Nostr sync, /fav key corruption

- UnifiedPeerService: dedup offline favorites against mesh peers by noise
  key. Phase 2 compared a 64-hex noise-key PeerID against 16-hex mesh IDs
  (never equal), leaving only a nickname+isConnected heuristic — a mutual
  favorite that was reachable-but-not-connected or renamed rendered twice,
  and a same-nick stranger could suppress a favorite entirely.
- Nostr inbound: intercept [FAVORITED]/[UNFAVORITED] markers in the live
  PM handler so they update theyFavoritedUs instead of rendering as chat
  text; mutual favorites can now form over Nostr. Delete the dead
  favorite-aware PM variant and ChatNostrCoordinator.handleFavoriteNotification
  (unwired, parsed a stale FAVORITE:TRUE|… format no sender emits).
- NostrTransport.isPeerReachable: match short form regardless of incoming
  ID width — toggling an offline favorite (addressed by 64-hex noise key)
  was silently dropped with no reachable transport.
- BLEService.sendPrivateMessage: normalize recipient to the short ID like
  sendFilePrivate, so a 64-hex target hits the existing Noise session
  instead of initiating a handshake with a 32-byte wire recipient ID.
- /fav, /unfav: stop writing Data(hexString: peerID.id) — the 8-byte
  routing ID for mesh peers — into the favorites store as a "noise key",
  and stop double-sending the favorite notification; delegate to
  toggleFavorite with a proper state check.
- FavoritesPersistenceService.updatePeerFavoritedUs: keep the stored
  nickname when the caller passes the "Unknown" placeholder.
- Bump marketing version to 1.5.4.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* Route DMs to mutual favorites via Nostr when a mesh-keyed peer goes offline

Field-tested on device: with a DM window opened while the peer was on
mesh (conversation keyed by the short 16-hex ID), walking out of range
and sending failed instantly with "peer not reachable" even though the
header showed the peer as Nostr-reachable (mutual favorite, npub known).

sendPrivateMessage derived the favorites key as Data(hexString:
peerID.id) — for a short mesh ID that is the 8-byte routing ID, never
the noise key — so the mutual-favorite/Nostr-key checks always came up
empty and the send failed before reaching MessageRouter. Conversations
keyed by the full 64-hex noise-key ID (opened from the offline favorite
row) were unaffected, which is why later tests appeared to work.

Resolve the noise key properly (peerID.noiseKey, then the unified peer
row, then the favorites store by derived short ID) and add a regression
test for the mesh-keyed-peer-goes-offline case.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* Label Nostr DMs from favorites with their stored nickname

Field-tested: a DM delivered over the Nostr fallback rendered as
"anon#678e" instead of the sender's name. The inbound handler named the
sender via displayNameForNostrPubkey, which only knows geohash-scoped
names — even though the pipeline had already resolved the sender's
noise key (the conversation is keyed by it).

When the conversation key carries a noise key, prefer the favorite's
stored nickname; geohash DMs (nostr_ keys) keep the anon geo name. This
also stops an inbound Nostr [FAVORITED] from overwriting the stored
nickname with the anon fallback, since the same name feeds
updatePeerFavoritedUs.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* Fix courier path for offline favorites addressed by noise-key IDs

Two Codex review findings, both the same ID-width confusion this PR
targets, in the courier flow:

- CourierDirectory.favoritesBacked resolved recipients only via
  getFavoriteStatus(forPeerID:), which requires a short 16-hex ID —
  offline favorites are addressed by the full 64-hex noise-key ID, so
  attemptCourierDeposit silently bailed for exactly the peers couriers
  exist to serve. The 64-hex ID now yields its own key directly.
- openCourierEnvelope emitted the derived short mesh ID even when the
  sender has no live mesh identity, landing couriered mail in an
  unresolvable short-ID thread labeled "Unknown". Absent senders now
  emit the full noise-key ID so the message joins the stable favorite
  conversation; present senders keep the live short-ID thread.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: jack <jackjackbits@users.noreply.github.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-06 17:17:21 +02:00
b31a63ce37 Burn down SwiftLint advisory violations from 109 to 4 (#1362)
Mechanical style fixes across the enabled rule set, mostly via
swiftlint --fix (trailing_comma, comma, colon, trailing_newline,
comment_spacing, unused_closure_parameter, unneeded_break_in_switch,
opening_brace) plus hand fixes:

- non_optional_string_data_conversion (45): .data(using: .utf8)! and
  ?? Data() fallbacks replaced with the non-optional Data(_.utf8),
  including two production sites (NIP-44 HKDF info constant and the
  announce canonicalization context/nickname bytes — byte-identical
  output, only the impossible-nil handling is gone).
- switch_case_alignment: LocationChannel had a misindented closing
  brace; also repaired an --fix artifact in BLEService's .none case.
- redundant_string_enum_value: TrustLevel raw values equal to the case
  names (encoded form unchanged).
- unused_optional_binding: let _ = binds replaced with != nil / is Bool.
- static_over_final_class: PreviewView.layerClass.
- Resolved the BinaryProtocolTests TODO by documenting that 8-byte
  recipient ID truncation is the fixed wire-field size, not a bug.

The 4 remaining violations are all todo markers for a shared
test-helpers module (tracked in #1088) and one Reuse note.

Co-authored-by: jack <jackjackbits@users.noreply.github.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-05 14:09:13 +02:00
af954b05ea Liquid Glass theme with in-app appearance switcher (#1337)
* Centralize UI theme colors into semantic ThemePalette tokens

Introduce AppTheme/ThemePalette (Utils/Theme.swift) with an environment
key and @ThemedPalette property wrapper, persisted via @AppStorage.
Views now resolve background/primary/secondary/accentBlue/alertRed/
divider tokens from the environment instead of computing colors inline,
removing the backgroundColor/textColor/secondaryTextColor prop-drilling
through the header, composer, and people-sheet hierarchy.

Matrix theme output is pixel-identical; this is groundwork for a
user-selectable theme switcher.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* Add liquid glass theme with in-app appearance switcher

Add a .liquidGlass AppTheme alongside the matrix terminal theme,
selectable from a one-line APPEARANCE row in the app info sheet
(persisted via @AppStorage, applies live).

Liquid glass renders system fonts and colors over a subtle gradient
backdrop, with the header and composer floating as Liquid Glass panels
(real .glassEffect() on iOS/macOS 26, compiler-gated with an
ultraThinMaterial fallback for older SDKs). The message list scrolls
underneath the chrome via safe-area insets, and all sheets share the
same backdrop and surface language. The matrix theme is unchanged.

Details:
- Theme is threaded through ChatMessageFormatter so message
  AttributedStrings switch font design per theme; the per-message
  format cache gains a variant key so themes never serve each other's
  cached strings
- New palette tokens: accent (interactive tint) and locationAccent
  (geohash green), replacing scattered hardcoded greens/blues in the
  voice note, waveform, verification, and people-sheet views
- Header controls get full-height tap targets and the people count
  becomes a real Button (previously a tap gesture on the cluster)
- CommandSuggestionsView renders nothing when empty instead of a
  zero-height view that pushed the composer input off-center
- New appearance strings localized for all 29 catalog languages

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: jack <jackjackbits@users.noreply.github.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-06-12 01:13:04 +02:00
IslamandGitHub c60eff2c11 Move additional files/tests to BitFoundation (#1102) 2026-04-15 12:26:48 -05:00
IslamandGitHub 4cfcefcda6 BitFoundation module to centralize shared components (#1089)
* Run local packages’ tests as well on CI

* BitFoundation module to centralize shared components
2026-04-14 14:10:03 -05:00