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Add encrypted UDP voice (OCB2-AES128) with TCP fallback

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- Port of Mumble's CryptStateOCB2 (XEX* counter-measures, late/lost/replay
  handling, nonce resync), verified against Mumble's OCB2 test vectors
- UDP channel per connection in the main process, to the address the TLS
  connection reached; used only while the server answers UDP pings, falls back
  to the TCP tunnel automatically; "voice over TCP only" setting
- Voice statistics show the live transport
- Information dialog no longer infers the transport from ping counters
- Message box: no padding, input fills the bar; Edit HTML only in descriptions

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
kibi
2026-10-01 01:14:36 +02:00
co-authored by Claude Opus 5.5
parent 9a3aeb29ad
commit b44b8230d4
19 changed files with 616 additions and 48 deletions
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CLAUDE.md
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@@ -37,7 +37,7 @@ A reused test server keeps registrations and channels from earlier runs; tests m
## Architecture
- `electron/` (Node, main process): window, TLS sockets to Mumble servers (`tls-transport.ts`), identities and PKCS#12 (`identity.ts`, `identity-store.ts`), certificate parsing (`certs.ts`), tray (`tray.ts`). The renderer only gets the narrow `window.mumh5Native` API from `preload.ts` (context isolation, sandbox).
- `electron/` (Node, main process): window, TLS sockets to Mumble servers (`tls-transport.ts`), encrypted UDP voice (`udp-voice.ts`, `ocb2.ts`, tested against Mumble's OCB2 vectors), identities and PKCS#12 (`identity.ts`, `identity-store.ts`), certificate parsing (`certs.ts`), tray (`tray.ts`). The renderer only gets the narrow `window.mumh5Native` API from `preload.ts` (context isolation, sandbox).
- `src/core/` (browser-safe TypeScript, also runs in Node for tests): framing and codec (`proto.ts`), the Mumble client state machine (`client.ts`), voice packet formats (`voice-packet.ts`). No DOM, no Electron, no Node imports here.
- `src/lib/`: app state. `session.svelte.ts` has one `Session` per server plus the `sessions` manager; `session` is a Proxy to the active one. `audio/voice.svelte.ts` is the voice engine (WebCodecs Opus, capture and playback AudioWorklets). `html.ts` sanitizes incoming HTML and serializes outgoing rich text.
- `src/ui/`: Svelte components. `App.svelte` owns layout and global dialogs (`ui.svelte.ts` store).