Add the outgoing side of HushChat: compose messages and start conversations.
The wire construction is the byte-exact inverse of the receive parser and is
proven by a self-consistent round-trip (build → parse → decrypt).
- src/chat/chat_outgoing.{h,cpp} (pure): buildOutgoingMessage encrypts via
encryptOutgoing and buildOutgoingContactRequest carries plaintext; both emit
the header memo JSON ({h,v,z,cid,t,e,p}, which nlohmann serializes
alphabetically to match SilentDragonXLite) + the payload memo, validating the
512-byte memo limit, the 64-hex peer key, and the "no leading '{'" rule for
request text. My public key goes in header "p"; the peer's key is the
encryption recipient.
- ChatService: composeMessage/composeContactRequest (encrypt with the held
identity) + recordOutgoing (echo an Outgoing ChatMessage into the store + DB —
we never harvest our own sends, so this is the only local record).
- App: sendChatMessage(cid,text) sources the peer z-addr + public key from the
conversation, composes, and records a random-id echo; startChatConversation
(zaddr,text) mints a random cid + composes a plaintext contact request;
chatReplyZaddr() picks a spendable z-addr. broadcastChatMemos() is the Phase-5
transport seam (network delivery + real-SDXL interop verification land there).
- Chat tab: a message composer (shown once the peer's key is known, else a
"waiting for reply" hint) + a "New conversation" modal that sends a contact
request to a z-address.
- Tests: outgoing round-trip through the receive parser + decrypt, contact-request
passthrough, validation guards, and ChatService compose + recordOutgoing echo.
Adversarially reviewed (crypto/interop, secret hygiene, logic, UI) — 0 findings.
Gated by DRAGONX_ENABLE_CHAT (default OFF). Verified: Linux + Windows(mingw)
build with chat ON, ctest 100%, hygiene clean; caches restored to the OFF default.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Add the first user-visible HushChat surface: a Chat tab in the sidebar with a
two-pane, read-only conversation view — a conversation list on the left and the
selected thread on the right — reading from the App-owned ChatService store.
- New src/ui/windows/chat_tab.{h,cpp} (RenderChatTab(App*), mirroring the
Contacts tab). Conversations are sorted by most-recent activity; peer
z-addresses resolve to contact names via the address book when known; each
message shows sender + timestamp + wrapped body, with a contact-request tag
and a read-only footer (composing arrives in a later phase). Empty states
cover "wallet locked / identity not ready" and "no conversations yet".
- Sidebar wiring: NavPage::Chat + registry entry (static_assert stays balanced),
NavPageSurface + GetNavIconMD (ICON_MD_CHAT), dispatch in app.cpp, trace/sweep
page names, and App::chatService() accessor. The tab is gated on the new
WalletUiSurface::Chat, which returns DRAGONX_ENABLE_CHAT != 0 — so it only
appears in chat-enabled builds and is hidden (and unreachable) by default.
- i18n: English defaults for the chat nav label + hint strings.
Verified: Linux + Windows(mingw) build with chat ON, ctest 100%, hygiene clean;
caches restored to the OFF default. The screenshot sweep now includes the Chat
tab (sweepPageName "chat") for per-theme visual review.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
DanSandClaude Opus 4.8