mirror of
https://github.com/permissionlesstech/bitchat.git
synced 2026-07-25 05:05:19 +00:00
main
4
Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
|
c8479c15e3 |
PTT hardening: per-peer burst keys + live-capture storage quota (#1420)
* PTT hardening: burst-ID collision hijack + live-capture quota bypass Fix C — burst-ID collision hijack: inbound live-voice assemblies and the finished-burst registry were keyed by the sender-chosen burst ID alone, so an attacker who observed a public burst ID could race a START and capture the real talker's frames (packets from the true sender were dropped as "collisions"). Assemblies now key on (peerID, scope, burstID): a colliding START from another peer opens its own capped assembly and can never divert the victim's frames; finalized-note absorption matches on the same triple, preserving the sender/scope binding. Live capture files also gain the peer ID in their name so colliding bursts land on distinct paths (still rejected by burstID(fromVoiceFileName:), so live names remain unabsorbable). Fix B — live-burst files bypassed the incoming-media quota: progressive voice_live_*.aac captures were written via raw FileHandle without ever touching BLEIncomingFileStore.enforceQuota, growing disk unbounded outside the 100 MB LRU accounting. The coordinator now takes an injected BLEIncomingFileStore, reserves pttMaxBurstBytes before opening a capture, and sweeps orphaned voice_live_* partials from previous sessions at startup. enforceQuota gains an `excluding:` set so in-flight partials are never LRU-evicted mid-stream; existing callers are unaffected. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * Review fixes: pattern-guard live captures in quota, scope in capture names Quota-eviction gap: BLEFileTransferHandler enforces the quota for every finalized arrival via enforceQuota(reservingBytes:) with no exclusion set, so a file landing at quota could LRU-evict an in-flight live capture — unlinking the inode under the coordinator's open FileHandle and leaving a dead bubble. Protection is now layer-independent: enforceQuota itself skips voice_live_* names (they still count toward usage), and the excluding: parameter is gone since the pattern guard covers its only caller. Orphaned partials are still reclaimed by the coordinator's startup sweep, which the quota deliberately never touches. Same-peer cross-scope truncation: makeIncomingURL omitted the scope, so one peer running a DM burst and a public burst with the same burst ID mapped both assemblies onto one path — and FileManager.createFile truncates, so each START corrupted the other capture. Names now mirror the assembly key: voice_live_<burstHex>_<peerID>_<dm|mesh>.aac. The sweep and quota guard match on the voice_live_ prefix and burstID(fromVoiceFileName:) still rejects every live name, so live captures remain unabsorbable; sameBurstIDCoexistsAcrossScopes now asserts both files survive with intact contents. Nits: the coordinator's file operations route through the store's injectable FileManager instead of FileManager.default, and the TestEnvironment.isRunningTests branch in init is replaced by a sweepsOnInit parameter (tests sharing the real application-support directory pass false for hermeticity). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * Promote kept live captures off the voice_live_ name at finalize Codex P1 follow-up: when a burst finalizes with frames but its .m4a note never arrives, the voice_live_*.aac capture stays behind as the bubble's replayable audio — yet the startup sweep deletes every voice_live_* file and the quota guard skips them forever, so a kept fallback was both quota-immune for the rest of the session and doomed at the next launch. finalize now promotes the capture to a plain voice_ name (same suffix) and republishes the row pointing at it; the finished-burst registry tracks the promoted URL so a late note still absorbs and deletes it. voice_live_ is thereby scoped to genuinely in-flight captures: the sweep never touches a referenced fallback, and promoted files age out of the quota like any finalized media. If the move fails the live name is kept — exactly the pre-promotion behavior. Premise correction, verified while tracing the reference model: chat rows are NOT persisted across restarts (ConversationStore is in-memory; the gossip archive replays MessageType.message packets only), so today's sweep never orphaned a persisted row — the fix removes the in-session quota immunity and makes the invariant hold if row persistence ever lands. Crash case stays deliberate and documented: a mid-burst partial from a dead process is swept because no surviving row can reference it. Tests: finalize-as-fallback promotes the file, repoints the row, and survives a later coordinator's startup sweep; promoted fallbacks are LRU-evictable by the quota; the sweep still removes true orphans while sparing promoted names; existing burst tests updated for the promoted paths. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> --------- Co-authored-by: jack <jackjackbits@users.noreply.github.com> Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com> |
||
|
|
d5cf64f99e |
Require signed sender for broadcast file transfers (#1406 follow-up) (#1407)
* Require signed sender for broadcast file transfers (#1406 follow-up) Broadcast file transfers trusted the packet's claimed senderID whenever the peer was merely connected (resolveKnownPeer allowConnectedUnverified: true), unlike public messages and public voice frames, which both require a valid packet signature from the claimed sender. Codex flagged the consequence on PR #1406: a peer that observed a public voice burst could broadcast a spoofed voice_<burstID>.m4a note under the talker's senderID, and ChatLiveVoiceCoordinator.absorbFinalizedVoiceNote would replace the signature-verified live bubble with attacker audio (senderPeerID + scope were the only bindings, both attacker-forgeable on this path). Bring broadcast file transfers up to the same bar as public messages: verify the packet signature against the registry signing key, falling back to the persisted-identity signature lookup, before trusting the sender. Directed (private) transfers keep the lenient connected-peer path — they are addressed to us specifically and carry no broadcast exposure. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * Exempt self broadcasts from the file-transfer signature gate Review of #1407 caught a regression: our own broadcast files replayed via gossip sync arrive with ttl==0 (so isSelfEcho does not drop them) and cannot be verified against the peer registry or identity cache, so the new broadcast signature guard would drop them. Mirror BLEPublicMessageHandler's self exemption — self packets are trivially authentic — and add a regression test. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * Stop relaying broadcast file packets that fail sender authentication Codex review on #1407: the new signature gate dropped spoofed broadcast files locally, but BLEService's .fileTransfer case still fell through to scheduleRelayIfNeeded, so a forged file kept propagating to downstream (possibly older, ungated) nodes. Have the handler report failed sender authentication and skip the relay step, like invalid board posts and voice frames. Local-only drops (malformed payload, quota, save failure) and files directed to other peers still relay unchanged. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * Fix CI hang: sign the max-size reassembly file transfer, unhang timeouts Both CI runs on #1407 died at the 5-minute watchdog (SIGKILL, exit 137) with the test process fully idle. Root cause was a pair of issues in FragmentationTests: - "Max-sized file transfer survives reassembly" injected an UNSIGNED broadcast file from an unknown peer, which the new broadcast signature gate now drops by design. Sign the packet and preseed the sender's signing key, mirroring the public-message reassembly tests. - CaptureDelegate's wait helpers could never time out: the timeout task threw, but withThrowingTaskGroup then awaited the sibling child that was parked in a non-cancellable withCheckedContinuation, deadlocking the whole run (hang instead of a 5s failure). Resume the parked continuation from a cancellation handler so timeouts now fail fast. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> --------- Co-authored-by: jack <jackjackbits@users.noreply.github.com> Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com> |
||
|
|
35fb9fdd42 |
Fix received DM images stuck as grey box: stamp incoming media delivered, reveal tap as Button (#1402)
* Make image tap-to-reveal a Button so the DM sheet can't swallow it Received images in a DM rendered as a grey "tap to reveal" box that never revealed: the DM sheet wraps the whole conversation in a high-priority swipe-to-close DragGesture (ContentSheetViews), and an ancestor high-priority gesture starves descendant TapGestures — the image's reveal/open tap never fired. Button actions survive that suppression (the sheet's own header buttons work for the same reason), so the tap now lives on a plain-style Button wrapping the image; swipe-to-hide stays attached as a simultaneous gesture. Fixes #1388 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * Move the cancel control out of the reveal Button Nested buttons don't get reliable independent hit testing, and the outer reveal tap is a no-op while sending, so the in-flight cancel x could become untappable. The cancel overlay now sits on the Button rather than inside its label. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * Root cause: received media stuck in .sending — grey box, dead tap Field testing showed the Button conversion alone didn't fix #1388: a received DM image still rendered as a flat grey box with a dead tap. The real culprit is BitchatMessage's initializer, which defaults every private message without an explicit status to `.sending`. BLEFileTransferHandler built incoming media messages without one, so every received private image/voice note was permanently "sending": mediaSendState returned progress 0 → BlockRevealMask rendered 0% of the image (the flat grey box is the blur overlay over an empty mask), and the reveal tap was disabled by the isSending guard — regardless of which gesture carried it. Two layers: - BLEFileTransferHandler now stamps incoming private media `.delivered(to: <local nickname>, at: <packet time>)`, matching the received-text path in ChatPrivateConversationCoordinator. - MediaMessageView treats received messages as never-sending, so no other construction path can reproduce the grey-box state. 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> |
||
|
jackandClaude Fable 5
|
3a995e20b6 |
Extract BLE packet handlers and migrate coordinators to narrow contexts
BLEService's per-packet-type orchestration moves into owned, tested components (BLEAnnounceHandler, BLEPublicMessageHandler, BLENoisePacketHandler, BLEFileTransferHandler, BLEFragmentHandler), each taking an environment struct of closures so every queue hop stays in BLEService and the handlers are synchronously testable. Behavior is preserved verbatim, including Noise session recovery on decrypt failure and single-block UI event ordering. handleLeave/handleRequestSync stay in place as already-thin delegations. BLEService drops to 3393 lines. Four coordinators (delivery, private conversation, Nostr, public conversation) drop their unowned/weak ChatViewModel back-references for narrow @MainActor context protocols, with ChatViewModel conformances as single shared witnesses for overlapping members. Their true coupling is now an explicit, reviewable surface, and each gains a mock-context test suite covering flows previously testable only through the full view model. Delivery/read acks now also clear the router's retained-send outbox via the delivery context. New LargeTopologyTests exercise production-shaped meshes with the in-memory harness: an 8-peer relay chain with per-hop TTL decay, a 14-peer cyclic mesh with exactly-once delivery, partition/heal, and topology churn. App-layer runtime/model files updated alongside. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |