WASM bridge: web client now uses same crypto as CLI (full interop)
warzone-wasm crate: - Compiles warzone-protocol to WebAssembly via wasm-pack - Exposes WasmIdentity, WasmSession, decrypt_wire_message to JS - Same X25519 + ChaCha20-Poly1305 + X3DH + Double Ratchet as CLI - 344KB WASM binary (optimized with wasm-opt) WireMessage moved to warzone-protocol: - Shared type used by CLI client, WASM bridge, and TUI - Guarantees identical bincode serialization across all clients Web client rewritten: - Loads WASM module on startup (/wasm/warzone_wasm.js) - Identity: WasmIdentity generates same key types as CLI - Registration: sends bincode PreKeyBundle (same format as CLI) - Encrypt: WasmSession.encrypt/encrypt_key_exchange - Decrypt: decrypt_wire_message (handles KeyExchange + Message) - Sessions persisted in localStorage (base64 ratchet state) - Groups: per-member WASM encryption (interop with CLI members) Server routes: - GET /wasm/warzone_wasm.js — serves WASM JS glue - GET /wasm/warzone_wasm_bg.wasm — serves WASM binary - Both embedded at compile time via include_str!/include_bytes! Web ↔ CLI interop now works: - Same key exchange (X3DH with X25519) - Same ratchet (Double Ratchet with ChaCha20-Poly1305) - Same wire format (bincode WireMessage) - Web user can message CLI user and vice versa Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Siavash Sameni
@@ -1,5 +1,6 @@
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use axum::{
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response::Html,
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http::header,
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response::{Html, IntoResponse},
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routing::get,
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Router,
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};
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@@ -7,13 +8,30 @@ use axum::{
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use crate::state::AppState;
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pub fn routes() -> Router<AppState> {
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Router::new().route("/", get(web_ui))
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Router::new()
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.route("/", get(web_ui))
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.route("/wasm/warzone_wasm.js", get(wasm_js))
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.route("/wasm/warzone_wasm_bg.wasm", get(wasm_binary))
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}
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async fn web_ui() -> Html<&'static str> {
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Html(WEB_HTML)
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}
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async fn wasm_js() -> impl IntoResponse {
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(
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[(header::CONTENT_TYPE, "application/javascript")],
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include_str!("../../../../wasm-pkg/warzone_wasm.js"),
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)
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}
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async fn wasm_binary() -> impl IntoResponse {
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(
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[(header::CONTENT_TYPE, "application/wasm")],
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include_bytes!("../../../../wasm-pkg/warzone_wasm_bg.wasm").as_slice(),
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)
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}
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const WEB_HTML: &str = r##"<!DOCTYPE html>
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<html lang="en">
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<head>
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@@ -125,114 +143,65 @@ const WEB_HTML: &str = r##"<!DOCTYPE html>
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</div>
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</div>
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<script>
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<script type="module">
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import init, { WasmIdentity, WasmSession, decrypt_wire_message } from '/wasm/warzone_wasm.js';
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const SERVER = window.location.origin;
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const $messages = document.getElementById('messages');
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const $input = document.getElementById('msg-input');
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const $peerInput = document.getElementById('peer-input');
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// ── State ──
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let seed = null; // Uint8Array(32)
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let myKeyPair = null; // ECDH CryptoKeyPair
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let wasmIdentity = null; // WasmIdentity from WASM
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let myFingerprint = '';
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let derivedKeys = {}; // peerFP -> AES CryptoKey
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let mySeedHex = '';
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let sessions = {}; // peerFP -> { session: WasmSession, data: base64 }
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let peerBundles = {}; // peerFP -> bundle bytes
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let pollTimer = null;
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// ── Crypto ──
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function toHex(buf) {
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return Array.from(new Uint8Array(buf)).map(b => b.toString(16).padStart(2, '0')).join('');
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}
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function fromHex(h) {
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const clean = h.replace(/[^0-9a-fA-F]/g, '');
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const bytes = new Uint8Array(clean.length / 2);
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for (let i = 0; i < bytes.length; i++) bytes[i] = parseInt(clean.substr(i*2, 2), 16);
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return bytes;
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}
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function formatFP(bytes) {
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const h = toHex(bytes);
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return h.match(/.{4}/g).join(':');
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}
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let wasmReady = false;
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function normFP(fp) {
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return fp.replace(/[^0-9a-fA-F]/g, '').toLowerCase();
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}
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async function generateKeyPair() {
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return crypto.subtle.generateKey({ name: 'ECDH', namedCurve: 'P-256' }, true, ['deriveBits']);
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// ── WASM-based crypto (same as CLI: X25519 + ChaCha20 + Double Ratchet) ──
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async function initWasm() {
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await init('/wasm/warzone_wasm_bg.wasm');
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wasmReady = true;
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}
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async function computeFingerprint(publicKey) {
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const raw = await crypto.subtle.exportKey('raw', publicKey);
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const hash = await crypto.subtle.digest('SHA-256', raw);
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return new Uint8Array(hash).slice(0, 16);
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}
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async function deriveAESKey(theirPubJwk) {
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const theirPub = await crypto.subtle.importKey('jwk', theirPubJwk, { name: 'ECDH', namedCurve: 'P-256' }, false, []);
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const bits = await crypto.subtle.deriveBits({ name: 'ECDH', public: theirPub }, myKeyPair.privateKey, 256);
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return crypto.subtle.importKey('raw', bits, 'AES-GCM', false, ['encrypt', 'decrypt']);
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}
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async function aesEncrypt(key, plaintext) {
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const iv = crypto.getRandomValues(new Uint8Array(12));
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const ct = await crypto.subtle.encrypt({ name: 'AES-GCM', iv }, key, new TextEncoder().encode(plaintext));
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// iv(12) + ciphertext
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const result = new Uint8Array(12 + ct.byteLength);
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result.set(iv, 0);
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result.set(new Uint8Array(ct), 12);
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return result;
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}
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async function aesDecrypt(key, data) {
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const iv = data.slice(0, 12);
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const ct = data.slice(12);
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const plain = await crypto.subtle.decrypt({ name: 'AES-GCM', iv }, key, ct);
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return new TextDecoder().decode(plain);
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}
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// ── Identity ──
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async function initIdentity(seedBytes) {
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seed = seedBytes;
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myKeyPair = await generateKeyPair();
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const fpBytes = await computeFingerprint(myKeyPair.publicKey);
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myFingerprint = formatFP(fpBytes);
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// Persist
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const privJwk = await crypto.subtle.exportKey('jwk', myKeyPair.privateKey);
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const pubJwk = await crypto.subtle.exportKey('jwk', myKeyPair.publicKey);
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localStorage.setItem('wz-seed', toHex(seed));
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localStorage.setItem('wz-priv', JSON.stringify(privJwk));
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localStorage.setItem('wz-pub', JSON.stringify(pubJwk));
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function initIdentityFromSeed(hexSeed) {
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wasmIdentity = WasmIdentity.from_hex_seed(hexSeed);
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myFingerprint = wasmIdentity.fingerprint();
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mySeedHex = wasmIdentity.seed_hex();
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localStorage.setItem('wz-seed', mySeedHex);
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localStorage.setItem('wz-fp', myFingerprint);
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}
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async function loadIdentity() {
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const savedSeed = localStorage.getItem('wz-seed');
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const savedPriv = localStorage.getItem('wz-priv');
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const savedPub = localStorage.getItem('wz-pub');
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const savedFP = localStorage.getItem('wz-fp');
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if (!savedSeed || !savedPriv || !savedPub || !savedFP) return false;
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seed = fromHex(savedSeed);
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const privJwk = JSON.parse(savedPriv);
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const pubJwk = JSON.parse(savedPub);
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const priv = await crypto.subtle.importKey('jwk', privJwk, { name: 'ECDH', namedCurve: 'P-256' }, true, ['deriveBits']);
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const pub_ = await crypto.subtle.importKey('jwk', pubJwk, { name: 'ECDH', namedCurve: 'P-256' }, true, []);
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myKeyPair = { privateKey: priv, publicKey: pub_ };
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myFingerprint = savedFP;
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return true;
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function generateNewIdentity() {
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wasmIdentity = new WasmIdentity();
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myFingerprint = wasmIdentity.fingerprint();
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mySeedHex = wasmIdentity.seed_hex();
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localStorage.setItem('wz-seed', mySeedHex);
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localStorage.setItem('wz-fp', myFingerprint);
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}
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// ── Server API ──
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function loadSavedIdentity() {
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const saved = localStorage.getItem('wz-seed');
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if (!saved) return false;
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try {
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initIdentityFromSeed(saved);
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return true;
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} catch(e) {
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localStorage.removeItem('wz-seed');
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return false;
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}
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}
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async function registerKey() {
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const pubJwk = await crypto.subtle.exportKey('jwk', myKeyPair.publicKey);
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const fp = normFP(myFingerprint);
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const bundleBytes = new TextEncoder().encode(JSON.stringify({ type: 'web', jwk: pubJwk }));
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const bundleBytes = wasmIdentity.bundle_bytes();
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await fetch(SERVER + '/v1/keys/register', {
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method: 'POST',
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headers: { 'Content-Type': 'application/json' },
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@@ -240,49 +209,54 @@ async function registerKey() {
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});
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}
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async function fetchPeerKey(peerFP) {
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async function fetchPeerBundle(peerFP) {
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const fp = normFP(peerFP);
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const cached = derivedKeys[fp];
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if (cached) return cached;
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if (peerBundles[fp]) return peerBundles[fp];
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const resp = await fetch(SERVER + '/v1/keys/' + fp);
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if (!resp.ok) throw new Error('Peer not registered');
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const data = await resp.json();
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const bundleBytes = Uint8Array.from(atob(data.bundle), c => c.charCodeAt(0));
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const bundleStr = new TextDecoder().decode(bundleBytes);
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let bundle;
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try {
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bundle = JSON.parse(bundleStr);
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} catch(e) {
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throw new Error('CLI client — cannot encrypt (different crypto, needs WASM bridge)');
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}
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if (bundle.type !== 'web') throw new Error('CLI client — cannot encrypt (different crypto)');
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const aesKey = await deriveAESKey(bundle.jwk);
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derivedKeys[fp] = aesKey;
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return aesKey;
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const bytes = Uint8Array.from(atob(data.bundle), c => c.charCodeAt(0));
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peerBundles[fp] = bytes;
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return bytes;
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}
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async function sendEncrypted(peerFP, plaintext) {
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const aesKey = await fetchPeerKey(peerFP);
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const encrypted = await aesEncrypt(aesKey, plaintext);
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const fp = normFP(peerFP);
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const bundleBytes = await fetchPeerBundle(fp);
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const envelope = JSON.stringify({
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type: 'web',
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from: normFP(myFingerprint),
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ciphertext: toHex(encrypted)
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});
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let wireBytes;
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if (sessions[fp]) {
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// Existing session
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const sess = WasmSession.restore(sessions[fp].data);
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wireBytes = sess.encrypt(wasmIdentity, plaintext);
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sessions[fp].data = sess.save();
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localStorage.setItem('wz-sessions', JSON.stringify(
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Object.fromEntries(Object.entries(sessions).map(([k,v]) => [k, v.data]))
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));
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} else {
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// New session via X3DH
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const sess = WasmSession.initiate(wasmIdentity, bundleBytes);
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wireBytes = sess.encrypt_key_exchange(wasmIdentity, bundleBytes, plaintext);
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sessions[fp] = { data: sess.save() };
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localStorage.setItem('wz-sessions', JSON.stringify(
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Object.fromEntries(Object.entries(sessions).map(([k,v]) => [k, v.data]))
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));
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}
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await fetch(SERVER + '/v1/messages/send', {
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method: 'POST',
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headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify({ to: normFP(peerFP), message: Array.from(new TextEncoder().encode(envelope)) })
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body: JSON.stringify({
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to: fp,
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from: normFP(myFingerprint),
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message: Array.from(wireBytes)
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})
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});
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}
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async function pollMessages() {
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if (!wasmReady) return;
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try {
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const fp = normFP(myFingerprint);
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const resp = await fetch(SERVER + '/v1/messages/poll/' + fp);
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@@ -292,36 +266,83 @@ async function pollMessages() {
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for (const b64 of msgs) {
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try {
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const bytes = Uint8Array.from(atob(b64), c => c.charCodeAt(0));
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const str = new TextDecoder().decode(bytes);
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// Try JSON (web client message)
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// Find existing session for this sender (we don't know sender yet)
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// Try decrypt with each session, or let decrypt_wire_message handle it
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const existingSessionsJson = {};
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for (const [k, v] of Object.entries(sessions)) {
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existingSessionsJson[k] = v.data;
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}
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// Try to decrypt (WASM handles both KeyExchange and Message)
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const resultStr = decrypt_wire_message(
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mySeedHex,
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bytes,
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null // existing session found internally
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);
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const result = JSON.parse(resultStr);
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// Save updated session
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const senderFP = normFP(result.sender);
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sessions[senderFP] = { data: result.session_data };
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localStorage.setItem('wz-sessions', JSON.stringify(
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Object.fromEntries(Object.entries(sessions).map(([k,v]) => [k, v.data]))
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));
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// Resolve alias
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let fromLabel = result.sender.slice(0, 19);
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try {
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const env = JSON.parse(str);
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if (env.type === 'web') {
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const aesKey = await fetchPeerKey(env.from);
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const ct = fromHex(env.ciphertext);
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const text = await aesDecrypt(aesKey, ct);
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let fromLabel = env.from.slice(0, 12);
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// Try to resolve alias
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try {
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const ar = await fetch(SERVER + '/v1/alias/whois/' + env.from);
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const ad = await ar.json();
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if (ad.alias) fromLabel = '@' + ad.alias;
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} catch(e) {}
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const groupTag = env.group ? ' [' + env.group + ']' : '';
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addMsg(fromLabel + groupTag, text, false);
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continue;
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}
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} catch(e) { /* not JSON, might be CLI bincode */ }
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const ar = await fetch(SERVER + '/v1/alias/whois/' + senderFP);
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const ad = await ar.json();
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if (ad.alias) fromLabel = '@' + ad.alias;
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} catch(e) {}
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addSys('[encrypted message from CLI client — use CLI to read]');
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addMsg(fromLabel, result.text, false);
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} catch(e) {
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addSys('[failed to process message]');
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// Try with existing session
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try {
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const bytes = Uint8Array.from(atob(b64), c => c.charCodeAt(0));
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// Brute-force try each session
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let decrypted = false;
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for (const [senderFP, sessData] of Object.entries(sessions)) {
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try {
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const resultStr = decrypt_wire_message(mySeedHex, bytes, sessData.data);
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const result = JSON.parse(resultStr);
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sessions[senderFP] = { data: result.session_data };
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localStorage.setItem('wz-sessions', JSON.stringify(
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Object.fromEntries(Object.entries(sessions).map(([k,v]) => [k, v.data]))
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));
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let fromLabel = result.sender.slice(0, 19);
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try {
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const ar = await fetch(SERVER + '/v1/alias/whois/' + normFP(result.sender));
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const ad = await ar.json();
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if (ad.alias) fromLabel = '@' + ad.alias;
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} catch(e2) {}
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addMsg(fromLabel, result.text, false);
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decrypted = true;
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break;
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} catch(e2) { continue; }
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}
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if (!decrypted) addSys('[message could not be decrypted]');
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} catch(e2) {
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addSys('[failed to process message]');
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}
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}
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}
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} catch(e) { /* server offline */ }
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}
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// Load saved sessions
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try {
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const saved = localStorage.getItem('wz-sessions');
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if (saved) {
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const parsed = JSON.parse(saved);
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for (const [k, v] of Object.entries(parsed)) {
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sessions[k] = { data: v };
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}
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}
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} catch(e) {}
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// ── UI ──
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function ts() {
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@@ -355,20 +376,17 @@ function addSys(text) {
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// ── Actions ──
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async function doGenerate() {
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const s = crypto.getRandomValues(new Uint8Array(32));
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await initIdentity(s);
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generateNewIdentity();
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document.getElementById('my-fp').textContent = myFingerprint;
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document.getElementById('my-seed').textContent = toHex(seed);
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document.getElementById('my-seed').textContent = mySeedHex;
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document.getElementById('gen-section').style.display = 'none';
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document.getElementById('id-section').style.display = 'block';
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}
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async function doRecover() {
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const input = document.getElementById('recover-input').value.trim();
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const input = document.getElementById('recover-input').value.trim().replace(/\s+/g, '');
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try {
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const s = fromHex(input);
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if (s.length !== 32) throw new Error('need 32 bytes');
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await initIdentity(s);
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initIdentityFromSeed(input);
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document.getElementById('my-fp').textContent = myFingerprint;
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document.getElementById('my-seed').textContent = '(recovered)';
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document.getElementById('gen-section').style.display = 'none';
|
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@@ -453,28 +471,32 @@ async function sendToGroup(groupName, text) {
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const members = data.members.filter(m => m !== myFP);
|
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if (members.length === 0) { addSys('No other members in group'); return; }
|
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|
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// Encrypt for each member
|
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// Encrypt for each member using WASM (same crypto as CLI)
|
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const messages = [];
|
||||
for (const memberFP of members) {
|
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try {
|
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const aesKey = await fetchPeerKey(memberFP);
|
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const encrypted = await aesEncrypt(aesKey, text);
|
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const envelope = JSON.stringify({
|
||||
type: 'web',
|
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from: myFP,
|
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group: groupName,
|
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ciphertext: toHex(encrypted)
|
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});
|
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messages.push({
|
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to: memberFP,
|
||||
message: Array.from(new TextEncoder().encode(envelope))
|
||||
});
|
||||
const bundleBytes = await fetchPeerBundle(memberFP);
|
||||
let wireBytes;
|
||||
if (sessions[memberFP]) {
|
||||
const sess = WasmSession.restore(sessions[memberFP].data);
|
||||
wireBytes = sess.encrypt(wasmIdentity, text);
|
||||
sessions[memberFP].data = sess.save();
|
||||
} else {
|
||||
const sess = WasmSession.initiate(wasmIdentity, bundleBytes);
|
||||
wireBytes = sess.encrypt_key_exchange(wasmIdentity, bundleBytes, text);
|
||||
sessions[memberFP] = { data: sess.save() };
|
||||
}
|
||||
messages.push({ to: memberFP, message: Array.from(wireBytes) });
|
||||
} catch(e) {
|
||||
// Silently skip CLI members (different crypto)
|
||||
// Skip members we can't encrypt for
|
||||
}
|
||||
}
|
||||
// Save sessions
|
||||
localStorage.setItem('wz-sessions', JSON.stringify(
|
||||
Object.fromEntries(Object.entries(sessions).map(([k,v]) => [k, v.data]))
|
||||
));
|
||||
|
||||
if (messages.length === 0) { addSys('No compatible web members to send to'); return; }
|
||||
if (messages.length === 0) { addSys('No members to send to'); return; }
|
||||
|
||||
await fetch(SERVER + '/v1/groups/' + groupName + '/send', {
|
||||
method: 'POST',
|
||||
@@ -570,10 +592,15 @@ $input.addEventListener('input', function() {
|
||||
this.style.height = Math.min(this.scrollHeight, 120) + 'px';
|
||||
});
|
||||
|
||||
// Auto-load
|
||||
// Initialize WASM and auto-load
|
||||
(async function() {
|
||||
if (await loadIdentity()) {
|
||||
enterChat();
|
||||
try {
|
||||
await initWasm();
|
||||
if (loadSavedIdentity()) {
|
||||
enterChat();
|
||||
}
|
||||
} catch(e) {
|
||||
addSys('Failed to load WASM crypto: ' + e.message);
|
||||
}
|
||||
})();
|
||||
</script>
|
||||
|
||||
Reference in New Issue
Block a user