dave
2181 lines
81 KiB
Rust
2181 lines
81 KiB
Rust
//! CRDT sync — WebSocket-based replication of pipeline state between huskies nodes.
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/// WebSocket-based CRDT sync layer for replicating pipeline state between
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/// huskies nodes.
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///
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/// # Protocol
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///
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/// The sync protocol is a hybrid of two frame types:
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///
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/// ## Text frames (bulk initial state)
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/// A JSON object with a `"type"` field:
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/// - `{"type":"bulk","ops":[...]}` — Initial state dump (array of serialised
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/// `SignedOp` JSON strings). Sent by both sides immediately after connect.
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///
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/// ## Binary frames (real-time op broadcast)
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/// Individual `SignedOp`s encoded via [`crate::crdt_wire`] (versioned JSON
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/// envelope: `{"v":1,"op":{...}}`). Each locally-applied op is immediately
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/// broadcast as a binary frame to all connected peers.
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///
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/// Both the server endpoint and the rendezvous client use the same protocol,
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/// making the connection fully symmetric.
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///
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/// ## Backpressure
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/// Each connected peer has its own [`tokio::sync::broadcast`] receiver. If a
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/// slow peer allows the channel to fill (indicated by a `Lagged` error), the
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/// connection is dropped with a warning log. The peer can reconnect and
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/// receive a fresh bulk state dump to catch up.
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use bft_json_crdt::json_crdt::SignedOp;
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use futures::{SinkExt, StreamExt};
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use poem::handler;
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use poem::web::Data;
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use poem::web::websocket::{Message as WsMessage, WebSocket};
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use serde::{Deserialize, Serialize};
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use std::sync::{Arc, OnceLock};
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use crate::crdt_state;
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use crate::crdt_wire;
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use crate::http::context::AppContext;
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use crate::node_identity;
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use crate::slog;
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use crate::slog_error;
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use crate::slog_warn;
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// ── Auth configuration ──────────────────────────────────────────────
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/// Default timeout for the auth handshake (seconds).
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const AUTH_TIMEOUT_SECS: u64 = 10;
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/// Trusted public keys loaded once at startup.
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static TRUSTED_KEYS: OnceLock<Vec<String>> = OnceLock::new();
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/// Initialise the trusted-key allow-list for connect-time mutual auth.
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///
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/// Must be called once at startup before any WebSocket connections are
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/// accepted. Subsequent calls are no-ops (OnceLock).
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pub fn init_trusted_keys(keys: Vec<String>) {
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let _ = TRUSTED_KEYS.set(keys);
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}
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/// Return a reference to the trusted-key allow-list.
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fn trusted_keys() -> &'static [String] {
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TRUSTED_KEYS.get().map(|v| v.as_slice()).unwrap_or(&[])
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}
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// ── Wire protocol types ─────────────────────────────────────────────
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/// Auth handshake: challenge sent by the listener to the connector.
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#[derive(Serialize, Deserialize, Debug)]
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struct ChallengeMessage {
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r#type: String,
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nonce: String,
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}
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/// Auth handshake: auth reply sent by the connector to the listener.
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#[derive(Serialize, Deserialize, Debug)]
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struct AuthMessage {
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r#type: String,
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pubkey_hex: String,
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signature_hex: String,
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}
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#[derive(Serialize, Deserialize)]
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#[serde(tag = "type", rename_all = "snake_case")]
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enum SyncMessage {
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/// Bulk state dump sent on connect.
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Bulk { ops: Vec<String> },
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/// A single new op.
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Op { op: String },
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}
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// ── Server-side WebSocket handler ───────────────────────────────────
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#[handler]
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pub async fn crdt_sync_handler(
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ws: WebSocket,
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_ctx: Data<&Arc<AppContext>>,
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) -> impl poem::IntoResponse {
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ws.on_upgrade(|socket| async move {
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let (mut sink, mut stream) = socket.split();
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slog!("[crdt-sync] Peer connected, starting auth handshake");
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// ── Step 1: Send challenge to the connecting peer ─────────
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let challenge = node_identity::generate_challenge();
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let challenge_msg = ChallengeMessage {
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r#type: "challenge".to_string(),
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nonce: challenge.clone(),
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};
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let challenge_json = match serde_json::to_string(&challenge_msg) {
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Ok(j) => j,
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Err(_) => return,
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};
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if sink.send(WsMessage::Text(challenge_json)).await.is_err() {
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return;
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}
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// ── Step 2: Await auth reply within timeout ───────────────
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let auth_result = tokio::time::timeout(
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std::time::Duration::from_secs(AUTH_TIMEOUT_SECS),
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stream.next(),
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)
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.await;
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let auth_text = match auth_result {
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Ok(Some(Ok(WsMessage::Text(text)))) => text,
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Ok(_) | Err(_) => {
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// Timeout or connection closed before auth reply.
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slog!("[crdt-sync] Auth timeout or connection lost during handshake");
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let _ = sink
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.send(WsMessage::Close(Some((
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poem::web::websocket::CloseCode::from(4001),
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"auth_timeout".to_string(),
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))))
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.await;
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let _ = sink.close().await;
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return;
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}
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};
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// ── Step 3: Verify auth reply ─────────────────────────────
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let auth_msg: AuthMessage = match serde_json::from_str(&auth_text) {
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Ok(m) => m,
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Err(_) => {
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slog!("[crdt-sync] Invalid auth message from peer");
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close_with_auth_failed(&mut sink).await;
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return;
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}
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};
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// Verify signature AND check allow-list.
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let sig_valid =
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node_identity::verify_challenge(&auth_msg.pubkey_hex, &challenge, &auth_msg.signature_hex);
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let key_trusted = trusted_keys().iter().any(|k| k == &auth_msg.pubkey_hex);
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if !sig_valid || !key_trusted {
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slog!("[crdt-sync] Auth failed for peer (sig_valid={sig_valid}, key_trusted={key_trusted})");
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close_with_auth_failed(&mut sink).await;
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return;
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}
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slog!(
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"[crdt-sync] Peer authenticated: {:.12}…",
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&auth_msg.pubkey_hex
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);
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// ── Auth passed — proceed with CRDT sync ──────────────────
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// Send bulk state dump.
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if let Some(ops) = crdt_state::all_ops_json() {
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let msg = SyncMessage::Bulk { ops };
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if let Ok(json) = serde_json::to_string(&msg)
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&& sink.send(WsMessage::Text(json)).await.is_err()
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{
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return;
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}
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}
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// Subscribe to new local ops.
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let Some(mut op_rx) = crdt_state::subscribe_ops() else {
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return;
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};
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loop {
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tokio::select! {
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// Forward new local ops to the peer encoded via the wire codec.
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result = op_rx.recv() => {
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match result {
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Ok(signed_op) => {
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let bytes = crdt_wire::encode(&signed_op);
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if sink.send(WsMessage::Binary(bytes)).await.is_err() {
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break;
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}
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}
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Err(tokio::sync::broadcast::error::RecvError::Lagged(n)) => {
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// The peer cannot keep up; disconnect so it can
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// reconnect and receive a fresh bulk state dump.
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slog!("[crdt-sync] Slow peer lagged {n} ops; disconnecting");
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break;
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}
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Err(_) => break,
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}
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}
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// Receive ops from the peer.
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frame = stream.next() => {
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match frame {
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Some(Ok(WsMessage::Text(text))) => {
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// Bulk state dump or legacy text-frame op.
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handle_incoming_text(&text);
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}
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Some(Ok(WsMessage::Binary(bytes))) => {
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// Real-time op encoded via wire codec.
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handle_incoming_binary(&bytes);
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}
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Some(Ok(WsMessage::Close(_))) | None => break,
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_ => {}
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}
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}
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}
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}
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slog!("[crdt-sync] Peer disconnected");
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})
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}
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/// Close the WebSocket with a generic `auth_failed` reason.
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///
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/// The close reason is intentionally the same for all auth failures
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/// (bad signature, untrusted key, malformed message) to avoid leaking
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/// which check failed.
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async fn close_with_auth_failed(
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sink: &mut futures::stream::SplitSink<poem::web::websocket::WebSocketStream, WsMessage>,
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) {
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let _ = sink
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.send(WsMessage::Close(Some((
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poem::web::websocket::CloseCode::from(4002),
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"auth_failed".to_string(),
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))))
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.await;
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let _ = sink.close().await;
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}
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/// Process an incoming text-frame sync message from a peer.
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///
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/// Text frames carry the bulk state dump (`SyncMessage::Bulk`) or legacy
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/// single-op messages (`SyncMessage::Op`).
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fn handle_incoming_text(text: &str) {
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let msg: SyncMessage = match serde_json::from_str(text) {
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Ok(m) => m,
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Err(e) => {
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slog!("[crdt-sync] Bad text message from peer: {e}");
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return;
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}
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};
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match msg {
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SyncMessage::Bulk { ops } => {
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let mut applied = 0u64;
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for op_json in &ops {
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if let Ok(signed_op) = serde_json::from_str::<SignedOp>(op_json)
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&& crdt_state::apply_remote_op(signed_op)
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{
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applied += 1;
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}
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}
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slog!(
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"[crdt-sync] Bulk sync: received {} ops, applied {applied}",
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ops.len()
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);
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}
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SyncMessage::Op { op } => {
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if let Ok(signed_op) = serde_json::from_str::<SignedOp>(&op) {
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crdt_state::apply_remote_op(signed_op);
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}
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}
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}
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}
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/// Process an incoming binary-frame op from a peer.
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///
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/// Binary frames carry a single `SignedOp` encoded via [`crdt_wire`].
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fn handle_incoming_binary(bytes: &[u8]) {
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match crdt_wire::decode(bytes) {
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Ok(signed_op) => {
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crdt_state::apply_remote_op(signed_op);
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}
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Err(e) => {
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slog!("[crdt-sync] Bad binary frame from peer: {e}");
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}
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}
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}
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// ── Rendezvous client ───────────────────────────────────────────────
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/// Number of consecutive connection failures before escalating from WARN to ERROR.
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pub const RENDEZVOUS_ERROR_THRESHOLD: u32 = 10;
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/// Spawn a background task that connects to the configured rendezvous
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/// peer and exchanges CRDT ops bidirectionally.
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///
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/// The client reconnects with exponential backoff if the connection drops.
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/// Individual failures are logged at WARN; after [`RENDEZVOUS_ERROR_THRESHOLD`]
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/// consecutive failures the log level escalates to ERROR.
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pub fn spawn_rendezvous_client(url: String) {
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tokio::spawn(async move {
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let mut backoff_secs = 1u64;
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let mut consecutive_failures: u32 = 0;
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loop {
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slog!("[crdt-sync] Connecting to rendezvous peer: {url}");
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match connect_and_sync(&url).await {
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Ok(()) => {
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slog!("[crdt-sync] Rendezvous connection closed cleanly");
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backoff_secs = 1;
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consecutive_failures = 0;
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}
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Err(e) => {
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consecutive_failures += 1;
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if consecutive_failures >= RENDEZVOUS_ERROR_THRESHOLD {
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slog_error!(
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"[crdt-sync] Rendezvous peer unreachable ({consecutive_failures} consecutive failures): {e}"
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);
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} else {
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slog_warn!(
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"[crdt-sync] Rendezvous connection error (attempt {consecutive_failures}): {e}"
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);
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}
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}
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}
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slog!("[crdt-sync] Reconnecting in {backoff_secs}s...");
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tokio::time::sleep(std::time::Duration::from_secs(backoff_secs)).await;
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backoff_secs = (backoff_secs * 2).min(30);
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}
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});
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}
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/// Connect to a remote sync endpoint and exchange ops until disconnect.
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async fn connect_and_sync(url: &str) -> Result<(), String> {
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let (ws_stream, _) = tokio_tungstenite::connect_async(url)
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.await
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.map_err(|e| format!("WebSocket connect failed: {e}"))?;
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let (mut sink, mut stream) = ws_stream.split();
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slog!("[crdt-sync] Connected to rendezvous peer, awaiting challenge");
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// ── Step 1: Receive challenge from listener ───────────────────
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use tokio_tungstenite::tungstenite::Message as TungsteniteMsg;
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let challenge_frame = tokio::time::timeout(
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std::time::Duration::from_secs(AUTH_TIMEOUT_SECS),
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stream.next(),
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)
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.await
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.map_err(|_| "Auth timeout waiting for challenge".to_string())?
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.ok_or_else(|| "Connection closed before challenge".to_string())?
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.map_err(|e| format!("WebSocket read error: {e}"))?;
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let challenge_text = match challenge_frame {
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TungsteniteMsg::Text(t) => t.to_string(),
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_ => return Err("Expected text frame for challenge".to_string()),
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};
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let challenge_msg: ChallengeMessage = serde_json::from_str(&challenge_text)
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.map_err(|e| format!("Invalid challenge message: {e}"))?;
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if challenge_msg.r#type != "challenge" {
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return Err(format!(
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"Expected challenge message, got type={}",
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challenge_msg.r#type
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));
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}
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// ── Step 2: Sign challenge and send auth reply ────────────────
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let (pubkey_hex, signature_hex) = crdt_state::sign_challenge(&challenge_msg.nonce)
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.ok_or_else(|| "CRDT not initialised — cannot sign challenge".to_string())?;
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let auth_msg = AuthMessage {
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r#type: "auth".to_string(),
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pubkey_hex,
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signature_hex,
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};
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let auth_json = serde_json::to_string(&auth_msg).map_err(|e| format!("Serialize auth: {e}"))?;
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sink.send(TungsteniteMsg::Text(auth_json.into()))
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.await
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.map_err(|e| format!("Send auth failed: {e}"))?;
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slog!("[crdt-sync] Auth reply sent, waiting for sync data");
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// Send our bulk state.
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if let Some(ops) = crdt_state::all_ops_json() {
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let msg = SyncMessage::Bulk { ops };
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if let Ok(json) = serde_json::to_string(&msg) {
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sink.send(TungsteniteMsg::Text(json.into()))
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.await
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.map_err(|e| format!("Send bulk failed: {e}"))?;
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}
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}
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// Subscribe to new local ops.
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let Some(mut op_rx) = crdt_state::subscribe_ops() else {
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return Err("CRDT not initialised".to_string());
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};
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loop {
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tokio::select! {
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result = op_rx.recv() => {
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match result {
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Ok(signed_op) => {
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// Encode via wire codec and send as binary frame.
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let bytes = crdt_wire::encode(&signed_op);
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use tokio_tungstenite::tungstenite::Message as TungsteniteMsg;
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if sink.send(TungsteniteMsg::Binary(bytes.into())).await.is_err() {
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break;
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}
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}
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Err(tokio::sync::broadcast::error::RecvError::Lagged(n)) => {
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slog!("[crdt-sync] Slow rendezvous link lagged {n} ops; disconnecting");
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break;
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}
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Err(_) => break,
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}
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}
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frame = stream.next() => {
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match frame {
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Some(Ok(tokio_tungstenite::tungstenite::Message::Text(text))) => {
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handle_incoming_text(text.as_ref());
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}
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Some(Ok(tokio_tungstenite::tungstenite::Message::Binary(bytes))) => {
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handle_incoming_binary(&bytes);
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}
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Some(Ok(tokio_tungstenite::tungstenite::Message::Close(_))) | None => break,
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Some(Err(e)) => {
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slog!("[crdt-sync] Rendezvous read error: {e}");
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break;
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}
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_ => {}
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}
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}
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}
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}
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|
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Ok(())
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}
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|
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// ── Tests ────────────────────────────────────────────────────────────
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|
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#[cfg(test)]
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mod tests {
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use super::*;
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|
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#[test]
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fn sync_message_bulk_serialization_roundtrip() {
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let msg = SyncMessage::Bulk {
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ops: vec!["op1".to_string(), "op2".to_string()],
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};
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let json = serde_json::to_string(&msg).unwrap();
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assert!(json.contains(r#""type":"bulk""#));
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let deserialized: SyncMessage = serde_json::from_str(&json).unwrap();
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match deserialized {
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SyncMessage::Bulk { ops } => {
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assert_eq!(ops.len(), 2);
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assert_eq!(ops[0], "op1");
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assert_eq!(ops[1], "op2");
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}
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_ => panic!("Expected Bulk"),
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}
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}
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|
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#[test]
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fn sync_message_op_serialization_roundtrip() {
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let msg = SyncMessage::Op {
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op: r#"{"inner":{}}"#.to_string(),
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};
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let json = serde_json::to_string(&msg).unwrap();
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assert!(json.contains(r#""type":"op""#));
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let deserialized: SyncMessage = serde_json::from_str(&json).unwrap();
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match deserialized {
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SyncMessage::Op { op } => {
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assert_eq!(op, r#"{"inner":{}}"#);
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}
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_ => panic!("Expected Op"),
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}
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}
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|
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#[test]
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fn handle_incoming_text_bad_json_does_not_panic() {
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handle_incoming_text("not valid json");
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}
|
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|
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#[test]
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fn handle_incoming_text_bulk_with_invalid_ops_does_not_panic() {
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let msg = SyncMessage::Bulk {
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ops: vec!["not a valid signed op".to_string()],
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};
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let json = serde_json::to_string(&msg).unwrap();
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|
handle_incoming_text(&json);
|
|
}
|
|
|
|
#[test]
|
|
fn handle_incoming_text_op_with_invalid_op_does_not_panic() {
|
|
let msg = SyncMessage::Op {
|
|
op: "garbage".to_string(),
|
|
};
|
|
let json = serde_json::to_string(&msg).unwrap();
|
|
handle_incoming_text(&json);
|
|
}
|
|
|
|
#[test]
|
|
fn handle_incoming_binary_bad_bytes_does_not_panic() {
|
|
handle_incoming_binary(b"not valid wire codec");
|
|
}
|
|
|
|
#[test]
|
|
fn handle_incoming_binary_empty_bytes_does_not_panic() {
|
|
handle_incoming_binary(b"");
|
|
}
|
|
|
|
#[test]
|
|
fn subscribe_ops_returns_none_before_init() {
|
|
// Before crdt_state::init() the channel doesn't exist yet.
|
|
// In test binaries it may or may not be initialised depending on
|
|
// other tests, so we just verify no panic.
|
|
let _ = crdt_state::subscribe_ops();
|
|
}
|
|
|
|
#[test]
|
|
fn all_ops_json_returns_none_before_init() {
|
|
let _ = crdt_state::all_ops_json();
|
|
}
|
|
|
|
#[test]
|
|
fn sync_message_bulk_empty_ops() {
|
|
let msg = SyncMessage::Bulk { ops: vec![] };
|
|
let json = serde_json::to_string(&msg).unwrap();
|
|
let deserialized: SyncMessage = serde_json::from_str(&json).unwrap();
|
|
match deserialized {
|
|
SyncMessage::Bulk { ops } => assert!(ops.is_empty()),
|
|
_ => panic!("Expected Bulk"),
|
|
}
|
|
}
|
|
|
|
/// Simulate the sync protocol by creating real SignedOps on two separate
|
|
/// CRDT instances and exchanging them through the SyncMessage wire format.
|
|
#[test]
|
|
fn two_node_sync_via_protocol_messages() {
|
|
use bft_json_crdt::json_crdt::{BaseCrdt, CrdtNode, OpState};
|
|
use bft_json_crdt::keypair::make_keypair;
|
|
use bft_json_crdt::op::ROOT_ID;
|
|
use serde_json::json;
|
|
|
|
use crate::crdt_state::PipelineDoc;
|
|
|
|
// ── Node A: create an item ──
|
|
let kp_a = make_keypair();
|
|
let mut crdt_a = BaseCrdt::<PipelineDoc>::new(&kp_a);
|
|
|
|
let item: bft_json_crdt::json_crdt::JsonValue = json!({
|
|
"story_id": "100_story_sync_test",
|
|
"stage": "1_backlog",
|
|
"name": "Sync Test",
|
|
"agent": "",
|
|
"retry_count": 0.0,
|
|
"blocked": false,
|
|
"depends_on": "",
|
|
"claimed_by": "",
|
|
"claimed_at": 0.0,
|
|
})
|
|
.into();
|
|
let op1 = crdt_a.doc.items.insert(ROOT_ID, item).sign(&kp_a);
|
|
assert_eq!(crdt_a.apply(op1.clone()), OpState::Ok);
|
|
|
|
// Serialise op1 into a SyncMessage::Op.
|
|
let op1_json = serde_json::to_string(&op1).unwrap();
|
|
let wire_msg = SyncMessage::Op {
|
|
op: op1_json.clone(),
|
|
};
|
|
let wire_json = serde_json::to_string(&wire_msg).unwrap();
|
|
|
|
// ── Node B: receive the op through protocol ──
|
|
let kp_b = make_keypair();
|
|
let mut crdt_b = BaseCrdt::<PipelineDoc>::new(&kp_b);
|
|
assert!(crdt_b.doc.items.view().is_empty());
|
|
|
|
// Parse wire message and apply.
|
|
let parsed: SyncMessage = serde_json::from_str(&wire_json).unwrap();
|
|
match parsed {
|
|
SyncMessage::Op { op } => {
|
|
let signed_op: bft_json_crdt::json_crdt::SignedOp =
|
|
serde_json::from_str(&op).unwrap();
|
|
let result = crdt_b.apply(signed_op);
|
|
assert_eq!(result, OpState::Ok);
|
|
}
|
|
_ => panic!("Expected Op"),
|
|
}
|
|
|
|
// Verify Node B has the same state as Node A.
|
|
assert_eq!(crdt_b.doc.items.view().len(), 1);
|
|
assert_eq!(
|
|
crdt_a.doc.items[0].story_id.view(),
|
|
crdt_b.doc.items[0].story_id.view()
|
|
);
|
|
assert_eq!(
|
|
crdt_a.doc.items[0].stage.view(),
|
|
crdt_b.doc.items[0].stage.view()
|
|
);
|
|
|
|
// ── Node A: update stage ──
|
|
let op2 = crdt_a.doc.items[0]
|
|
.stage
|
|
.set("2_current".to_string())
|
|
.sign(&kp_a);
|
|
crdt_a.apply(op2.clone());
|
|
|
|
// Send via bulk message.
|
|
let op2_json = serde_json::to_string(&op2).unwrap();
|
|
let bulk_msg = SyncMessage::Bulk {
|
|
ops: vec![op1_json, op2_json],
|
|
};
|
|
let bulk_wire = serde_json::to_string(&bulk_msg).unwrap();
|
|
|
|
// ── Node C: receives full state via bulk ──
|
|
let kp_c = make_keypair();
|
|
let mut crdt_c = BaseCrdt::<PipelineDoc>::new(&kp_c);
|
|
|
|
let parsed_bulk: SyncMessage = serde_json::from_str(&bulk_wire).unwrap();
|
|
match parsed_bulk {
|
|
SyncMessage::Bulk { ops } => {
|
|
for op_str in &ops {
|
|
let signed: bft_json_crdt::json_crdt::SignedOp =
|
|
serde_json::from_str(op_str).unwrap();
|
|
crdt_c.apply(signed);
|
|
}
|
|
}
|
|
_ => panic!("Expected Bulk"),
|
|
}
|
|
|
|
// Node C should have the updated stage.
|
|
assert_eq!(crdt_c.doc.items.view().len(), 1);
|
|
assert_eq!(
|
|
crdt_c.doc.items[0].stage.view(),
|
|
bft_json_crdt::json_crdt::JsonValue::String("2_current".to_string())
|
|
);
|
|
}
|
|
|
|
/// Verify that a single node's ops (insert + update) can be replayed
|
|
/// on another node via bulk sync and produce the same final state.
|
|
/// This is the core property needed for partition healing: when a
|
|
/// disconnected node reconnects, it sends all its ops as a bulk
|
|
/// message and the receiver catches up.
|
|
#[test]
|
|
fn partition_heal_via_bulk_replay() {
|
|
use bft_json_crdt::json_crdt::{BaseCrdt, CrdtNode, JsonValue as JV};
|
|
use bft_json_crdt::keypair::make_keypair;
|
|
use bft_json_crdt::op::ROOT_ID;
|
|
use serde_json::json;
|
|
|
|
use crate::crdt_state::PipelineDoc;
|
|
|
|
let kp = make_keypair();
|
|
|
|
// Node A creates an item and advances it.
|
|
let mut crdt_a = BaseCrdt::<PipelineDoc>::new(&kp);
|
|
let item: bft_json_crdt::json_crdt::JsonValue = json!({
|
|
"story_id": "200_story_heal",
|
|
"stage": "1_backlog",
|
|
"name": "Heal Test",
|
|
"agent": "",
|
|
"retry_count": 0.0,
|
|
"blocked": false,
|
|
"depends_on": "",
|
|
"claimed_by": "",
|
|
"claimed_at": 0.0,
|
|
})
|
|
.into();
|
|
|
|
let op1 = crdt_a.doc.items.insert(ROOT_ID, item).sign(&kp);
|
|
crdt_a.apply(op1.clone());
|
|
|
|
let op2 = crdt_a.doc.items[0]
|
|
.stage
|
|
.set("2_current".to_string())
|
|
.sign(&kp);
|
|
crdt_a.apply(op2.clone());
|
|
|
|
let op3 = crdt_a.doc.items[0].stage.set("3_qa".to_string()).sign(&kp);
|
|
crdt_a.apply(op3.clone());
|
|
|
|
// Serialise all ops as a bulk message (simulates partition heal).
|
|
let ops_json: Vec<String> = [&op1, &op2, &op3]
|
|
.iter()
|
|
.map(|op| serde_json::to_string(op).unwrap())
|
|
.collect();
|
|
let bulk = SyncMessage::Bulk { ops: ops_json };
|
|
let wire = serde_json::to_string(&bulk).unwrap();
|
|
|
|
// Node B receives the bulk and reconstructs state.
|
|
let mut crdt_b = BaseCrdt::<PipelineDoc>::new(&kp);
|
|
let parsed: SyncMessage = serde_json::from_str(&wire).unwrap();
|
|
match parsed {
|
|
SyncMessage::Bulk { ops } => {
|
|
for op_str in &ops {
|
|
let signed: bft_json_crdt::json_crdt::SignedOp =
|
|
serde_json::from_str(op_str).unwrap();
|
|
crdt_b.apply(signed);
|
|
}
|
|
}
|
|
_ => panic!("Expected Bulk"),
|
|
}
|
|
|
|
// Node B should match Node A exactly.
|
|
assert_eq!(crdt_b.doc.items.view().len(), 1);
|
|
assert_eq!(
|
|
crdt_b.doc.items[0].stage.view(),
|
|
JV::String("3_qa".to_string())
|
|
);
|
|
assert_eq!(
|
|
crdt_a.doc.items[0].stage.view(),
|
|
crdt_b.doc.items[0].stage.view()
|
|
);
|
|
assert_eq!(
|
|
crdt_a.doc.items[0].name.view(),
|
|
crdt_b.doc.items[0].name.view()
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn config_rendezvous_parsed_from_toml() {
|
|
let toml_str = r#"
|
|
rendezvous = "ws://remote:3001/crdt-sync"
|
|
|
|
[[agent]]
|
|
name = "test"
|
|
"#;
|
|
let config: crate::config::ProjectConfig = toml::from_str(toml_str).unwrap();
|
|
assert_eq!(
|
|
config.rendezvous.as_deref(),
|
|
Some("ws://remote:3001/crdt-sync")
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn config_rendezvous_defaults_to_none() {
|
|
let config = crate::config::ProjectConfig::default();
|
|
assert!(config.rendezvous.is_none());
|
|
}
|
|
|
|
// ── AC4: Failure logging escalation ──────────────────────────────────────
|
|
|
|
/// AC4: Connection errors must be logged at WARN for the first nine
|
|
/// consecutive failures and escalate to ERROR from the tenth onwards.
|
|
#[test]
|
|
fn failure_counter_warn_below_threshold() {
|
|
let threshold = super::RENDEZVOUS_ERROR_THRESHOLD;
|
|
let mut consecutive_failures: u32 = 0;
|
|
|
|
// First threshold-1 failures are below the ERROR threshold.
|
|
for _ in 0..(threshold - 1) {
|
|
consecutive_failures += 1;
|
|
assert!(
|
|
consecutive_failures < threshold,
|
|
"failure {consecutive_failures} must be below ERROR threshold {threshold}"
|
|
);
|
|
}
|
|
}
|
|
|
|
/// AC4: The tenth consecutive failure must trigger ERROR-level logging.
|
|
#[test]
|
|
fn failure_counter_error_at_threshold() {
|
|
let threshold = super::RENDEZVOUS_ERROR_THRESHOLD;
|
|
let consecutive_failures: u32 = threshold;
|
|
assert!(
|
|
consecutive_failures >= threshold,
|
|
"failure {consecutive_failures} must reach or exceed ERROR threshold {threshold}"
|
|
);
|
|
}
|
|
|
|
/// AC4: A successful connection resets the failure counter so subsequent
|
|
/// single failures are again logged at WARN (not ERROR).
|
|
#[test]
|
|
fn failure_counter_resets_on_success() {
|
|
let threshold = super::RENDEZVOUS_ERROR_THRESHOLD;
|
|
// Simulate sustained failure.
|
|
let mut consecutive_failures: u32 = threshold + 5;
|
|
assert!(consecutive_failures >= threshold);
|
|
|
|
// Simulate a clean reconnect.
|
|
consecutive_failures = 0;
|
|
assert_eq!(
|
|
consecutive_failures, 0,
|
|
"counter must reset to 0 on success"
|
|
);
|
|
|
|
// Next error is attempt 1 — well below the ERROR threshold.
|
|
consecutive_failures += 1;
|
|
assert!(
|
|
consecutive_failures < threshold,
|
|
"first failure after reset must be below ERROR threshold"
|
|
);
|
|
}
|
|
|
|
/// AC4: The RENDEZVOUS_ERROR_THRESHOLD constant must equal 10.
|
|
#[test]
|
|
fn error_threshold_is_ten() {
|
|
assert_eq!(
|
|
super::RENDEZVOUS_ERROR_THRESHOLD,
|
|
10,
|
|
"ERROR escalation threshold must be 10 consecutive failures"
|
|
);
|
|
}
|
|
|
|
// ── AC5: Self-loop dedup ──────────────────────────────────────────────────
|
|
|
|
/// AC5: Applying the same SignedOp twice returns AlreadySeen on the second
|
|
/// call and leaves the CRDT state unchanged.
|
|
#[test]
|
|
fn self_loop_dedup_second_apply_is_noop() {
|
|
use bft_json_crdt::json_crdt::{BaseCrdt, CrdtNode, JsonValue as JV, OpState};
|
|
use bft_json_crdt::keypair::make_keypair;
|
|
use bft_json_crdt::op::ROOT_ID;
|
|
use serde_json::json;
|
|
|
|
use crate::crdt_state::PipelineDoc;
|
|
|
|
let kp = make_keypair();
|
|
let mut crdt = BaseCrdt::<PipelineDoc>::new(&kp);
|
|
|
|
let item: bft_json_crdt::json_crdt::JsonValue = json!({
|
|
"story_id": "507_dedup_test",
|
|
"stage": "1_backlog",
|
|
"name": "Dedup Test",
|
|
"agent": "",
|
|
"retry_count": 0.0,
|
|
"blocked": false,
|
|
"depends_on": "",
|
|
"claimed_by": "",
|
|
"claimed_at": 0.0,
|
|
})
|
|
.into();
|
|
|
|
let op = crdt.doc.items.insert(ROOT_ID, item).sign(&kp);
|
|
|
|
// First apply: succeeds.
|
|
assert_eq!(crdt.apply(op.clone()), OpState::Ok);
|
|
assert_eq!(crdt.doc.items.view().len(), 1);
|
|
|
|
// Second apply (self-loop): must be a no-op.
|
|
assert_eq!(crdt.apply(op.clone()), OpState::AlreadySeen);
|
|
|
|
// State must not have changed.
|
|
assert_eq!(crdt.doc.items.view().len(), 1);
|
|
|
|
// Stage update also deduplicated correctly.
|
|
let stage_op = crdt.doc.items[0]
|
|
.stage
|
|
.set("2_current".to_string())
|
|
.sign(&kp);
|
|
assert_eq!(crdt.apply(stage_op.clone()), OpState::Ok);
|
|
assert_eq!(
|
|
crdt.doc.items[0].stage.view(),
|
|
JV::String("2_current".to_string())
|
|
);
|
|
assert_eq!(crdt.apply(stage_op), OpState::AlreadySeen);
|
|
assert_eq!(
|
|
crdt.doc.items[0].stage.view(),
|
|
JV::String("2_current".to_string()),
|
|
"stage must not change on duplicate apply"
|
|
);
|
|
}
|
|
|
|
// ── AC3 & AC7: Out-of-order causal queueing ───────────────────────────────
|
|
|
|
/// AC3/AC7: An op whose causal dependency has not yet arrived is held in the
|
|
/// queue (returns MissingCausalDependencies). When the dependency arrives
|
|
/// the queued op is released and applied automatically.
|
|
#[test]
|
|
fn out_of_order_causal_queueing_releases_on_dep_arrival() {
|
|
use bft_json_crdt::json_crdt::{BaseCrdt, CrdtNode, JsonValue as JV, OpState};
|
|
use bft_json_crdt::keypair::make_keypair;
|
|
use bft_json_crdt::op::ROOT_ID;
|
|
use serde_json::json;
|
|
|
|
use crate::crdt_state::PipelineDoc;
|
|
|
|
let kp = make_keypair();
|
|
let mut crdt = BaseCrdt::<PipelineDoc>::new(&kp);
|
|
|
|
let item: bft_json_crdt::json_crdt::JsonValue = json!({
|
|
"story_id": "507_causal_test",
|
|
"stage": "1_backlog",
|
|
"name": "Causal Test",
|
|
"agent": "",
|
|
"retry_count": 0.0,
|
|
"blocked": false,
|
|
"depends_on": "",
|
|
"claimed_by": "",
|
|
"claimed_at": 0.0,
|
|
})
|
|
.into();
|
|
|
|
// op1 = insert item (no deps)
|
|
let op1 = crdt.doc.items.insert(ROOT_ID, item).sign(&kp);
|
|
|
|
// op2 = set stage, declared to depend on op1
|
|
// We must first apply op1 locally to generate op2 from the right state,
|
|
// then we'll test op2-before-op1 on a fresh CRDT.
|
|
crdt.apply(op1.clone());
|
|
let op2 = crdt.doc.items[0]
|
|
.stage
|
|
.set("2_current".to_string())
|
|
.sign_with_dependencies(&kp, vec![&op1]);
|
|
|
|
// Create a fresh receiver CRDT.
|
|
let mut receiver = BaseCrdt::<PipelineDoc>::new(&kp);
|
|
|
|
// Apply op2 first — dependency (op1) has not arrived yet.
|
|
let r = receiver.apply(op2.clone());
|
|
assert_eq!(
|
|
r,
|
|
OpState::MissingCausalDependencies,
|
|
"op2 must be queued when op1 has not arrived"
|
|
);
|
|
// Queue length must reflect the held op.
|
|
assert_eq!(receiver.causal_queue_len(), 1);
|
|
|
|
// Item has NOT been inserted yet (op1 not applied).
|
|
assert_eq!(receiver.doc.items.view().len(), 0);
|
|
|
|
// Now deliver op1 — this should trigger op2 to be flushed automatically.
|
|
let r = receiver.apply(op1.clone());
|
|
assert_eq!(r, OpState::Ok);
|
|
|
|
// Both ops are now applied — item is present at stage 2_current.
|
|
assert_eq!(receiver.doc.items.view().len(), 1);
|
|
assert_eq!(
|
|
receiver.doc.items[0].stage.view(),
|
|
JV::String("2_current".to_string()),
|
|
"op2 must have been applied automatically after op1 arrived"
|
|
);
|
|
|
|
// Queue must be empty now.
|
|
assert_eq!(receiver.causal_queue_len(), 0);
|
|
}
|
|
|
|
/// AC7: In-order apply works correctly (no causal queueing needed).
|
|
#[test]
|
|
fn in_order_apply_works_without_queueing() {
|
|
use bft_json_crdt::json_crdt::{BaseCrdt, CrdtNode, JsonValue as JV, OpState};
|
|
use bft_json_crdt::keypair::make_keypair;
|
|
use bft_json_crdt::op::ROOT_ID;
|
|
use serde_json::json;
|
|
|
|
use crate::crdt_state::PipelineDoc;
|
|
|
|
let kp = make_keypair();
|
|
let mut crdt_a = BaseCrdt::<PipelineDoc>::new(&kp);
|
|
|
|
let item: bft_json_crdt::json_crdt::JsonValue = json!({
|
|
"story_id": "507_inorder_test",
|
|
"stage": "1_backlog",
|
|
"name": "In-Order Test",
|
|
"agent": "",
|
|
"retry_count": 0.0,
|
|
"blocked": false,
|
|
"depends_on": "",
|
|
"claimed_by": "",
|
|
"claimed_at": 0.0,
|
|
})
|
|
.into();
|
|
|
|
let op1 = crdt_a.doc.items.insert(ROOT_ID, item).sign(&kp);
|
|
crdt_a.apply(op1.clone());
|
|
let op2 = crdt_a.doc.items[0]
|
|
.stage
|
|
.set("2_current".to_string())
|
|
.sign(&kp);
|
|
crdt_a.apply(op2.clone());
|
|
let op3 = crdt_a.doc.items[0].stage.set("3_qa".to_string()).sign(&kp);
|
|
crdt_a.apply(op3.clone());
|
|
|
|
// Receiver applies all ops in the correct order.
|
|
let mut crdt_b = BaseCrdt::<PipelineDoc>::new(&kp);
|
|
assert_eq!(crdt_b.apply(op1), OpState::Ok);
|
|
assert_eq!(crdt_b.apply(op2), OpState::Ok);
|
|
assert_eq!(crdt_b.apply(op3), OpState::Ok);
|
|
assert_eq!(crdt_b.causal_queue_len(), 0);
|
|
assert_eq!(
|
|
crdt_b.doc.items[0].stage.view(),
|
|
JV::String("3_qa".to_string())
|
|
);
|
|
}
|
|
|
|
// ── AC4: Queue overflow behaviour ─────────────────────────────────────────
|
|
|
|
/// AC4: When the causal-order queue exceeds CAUSAL_QUEUE_MAX the oldest
|
|
/// pending op is evicted (queue never grows beyond the cap).
|
|
#[test]
|
|
fn causal_queue_overflow_drops_oldest() {
|
|
use bft_json_crdt::json_crdt::{BaseCrdt, CAUSAL_QUEUE_MAX, OpState};
|
|
use bft_json_crdt::keypair::make_keypair;
|
|
use bft_json_crdt::op::ROOT_ID;
|
|
use serde_json::json;
|
|
|
|
use crate::crdt_state::PipelineDoc;
|
|
|
|
let kp = make_keypair();
|
|
|
|
// Build one "phantom" op that we'll claim as a dependency but never deliver.
|
|
// We do this by creating it on a separate CRDT and never applying it.
|
|
let mut source = BaseCrdt::<PipelineDoc>::new(&kp);
|
|
let phantom_item: bft_json_crdt::json_crdt::JsonValue = json!({
|
|
"story_id": "507_phantom",
|
|
"stage": "1_backlog",
|
|
"name": "Phantom",
|
|
"agent": "",
|
|
"retry_count": 0.0,
|
|
"blocked": false,
|
|
"depends_on": "",
|
|
"claimed_by": "",
|
|
"claimed_at": 0.0,
|
|
})
|
|
.into();
|
|
let phantom_op = source.doc.items.insert(ROOT_ID, phantom_item).sign(&kp);
|
|
|
|
// Receiver never sees phantom_op, so any op declaring it as a dep will
|
|
// sit in the causal queue forever (until evicted by overflow).
|
|
let mut receiver = BaseCrdt::<PipelineDoc>::new(&kp);
|
|
source.apply(phantom_op.clone());
|
|
|
|
// Send CAUSAL_QUEUE_MAX + 5 stage-update ops all depending on phantom_op.
|
|
// Each one will be queued because phantom_op is never delivered.
|
|
let mut queued = 0usize;
|
|
for i in 0..CAUSAL_QUEUE_MAX + 5 {
|
|
let stage_name = format!("stage_{i}");
|
|
// Generate from source so seq numbers are valid.
|
|
let op = source.doc.items[0]
|
|
.stage
|
|
.set(stage_name)
|
|
.sign_with_dependencies(&kp, vec![&phantom_op]);
|
|
source.apply(op.clone());
|
|
let r = receiver.apply(op);
|
|
if r == OpState::MissingCausalDependencies {
|
|
queued += 1;
|
|
}
|
|
}
|
|
|
|
// We sent more than CAUSAL_QUEUE_MAX ops, but the queue must stay bounded.
|
|
assert!(
|
|
receiver.causal_queue_len() <= CAUSAL_QUEUE_MAX,
|
|
"queue ({}) must not exceed CAUSAL_QUEUE_MAX ({CAUSAL_QUEUE_MAX})",
|
|
receiver.causal_queue_len()
|
|
);
|
|
assert!(
|
|
queued > 0,
|
|
"at least some ops must have been accepted into the queue"
|
|
);
|
|
}
|
|
|
|
// ── AC6: Convergence test ─────────────────────────────────────────────────
|
|
|
|
/// AC6: Two CRDT instances generate interleaved ops on each side, simulate a
|
|
/// network partition by withholding each other's ops, then exchange all
|
|
/// buffered ops. Final state must be byte-identical on both nodes.
|
|
#[test]
|
|
fn convergence_after_partition_and_replay() {
|
|
use bft_json_crdt::json_crdt::{BaseCrdt, CrdtNode, JsonValue as JV, OpState};
|
|
use bft_json_crdt::keypair::make_keypair;
|
|
use bft_json_crdt::op::ROOT_ID;
|
|
use serde_json::json;
|
|
|
|
use crate::crdt_state::PipelineDoc;
|
|
|
|
let kp_a = make_keypair();
|
|
let kp_b = make_keypair();
|
|
|
|
let mut crdt_a = BaseCrdt::<PipelineDoc>::new(&kp_a);
|
|
let mut crdt_b = BaseCrdt::<PipelineDoc>::new(&kp_b);
|
|
|
|
// ── Phase 1: A generates ops while partitioned from B ──────────────
|
|
|
|
let item_a: bft_json_crdt::json_crdt::JsonValue = json!({
|
|
"story_id": "507_convergence_a",
|
|
"stage": "1_backlog",
|
|
"name": "Story A",
|
|
"agent": "",
|
|
"retry_count": 0.0,
|
|
"blocked": false,
|
|
"depends_on": "",
|
|
"claimed_by": "",
|
|
"claimed_at": 0.0,
|
|
})
|
|
.into();
|
|
let op_a1 = crdt_a.doc.items.insert(ROOT_ID, item_a).sign(&kp_a);
|
|
crdt_a.apply(op_a1.clone());
|
|
|
|
let op_a2 = crdt_a.doc.items[0]
|
|
.stage
|
|
.set("2_current".to_string())
|
|
.sign(&kp_a);
|
|
crdt_a.apply(op_a2.clone());
|
|
|
|
// ── Phase 2: B generates ops while partitioned from A ──────────────
|
|
|
|
let item_b: bft_json_crdt::json_crdt::JsonValue = json!({
|
|
"story_id": "507_convergence_b",
|
|
"stage": "1_backlog",
|
|
"name": "Story B",
|
|
"agent": "",
|
|
"retry_count": 0.0,
|
|
"blocked": false,
|
|
"depends_on": "",
|
|
"claimed_by": "",
|
|
"claimed_at": 0.0,
|
|
})
|
|
.into();
|
|
let op_b1 = crdt_b.doc.items.insert(ROOT_ID, item_b).sign(&kp_b);
|
|
crdt_b.apply(op_b1.clone());
|
|
|
|
let op_b2 = crdt_b.doc.items[0]
|
|
.stage
|
|
.set("2_current".to_string())
|
|
.sign(&kp_b);
|
|
crdt_b.apply(op_b2.clone());
|
|
|
|
// ── Phase 3: Reconnect — both sides replay all buffered ops ────────
|
|
|
|
// A sends its ops to B.
|
|
let r = crdt_b.apply(op_a1.clone());
|
|
assert!(r == OpState::Ok || r == OpState::AlreadySeen);
|
|
let r = crdt_b.apply(op_a2.clone());
|
|
assert!(r == OpState::Ok || r == OpState::AlreadySeen);
|
|
|
|
// B sends its ops to A.
|
|
let r = crdt_a.apply(op_b1.clone());
|
|
assert!(r == OpState::Ok || r == OpState::AlreadySeen);
|
|
let r = crdt_a.apply(op_b2.clone());
|
|
assert!(r == OpState::Ok || r == OpState::AlreadySeen);
|
|
|
|
// ── Phase 4: Assert convergence ────────────────────────────────────
|
|
|
|
// Both nodes must have both stories.
|
|
assert_eq!(
|
|
crdt_a.doc.items.view().len(),
|
|
2,
|
|
"A must have 2 items after convergence"
|
|
);
|
|
assert_eq!(
|
|
crdt_b.doc.items.view().len(),
|
|
2,
|
|
"B must have 2 items after convergence"
|
|
);
|
|
|
|
// Serialise both CRDT views to JSON and assert byte-identical.
|
|
let view_a = serde_json::to_string(&CrdtNode::view(&crdt_a.doc.items)).unwrap();
|
|
let view_b = serde_json::to_string(&CrdtNode::view(&crdt_b.doc.items)).unwrap();
|
|
assert_eq!(
|
|
view_a, view_b,
|
|
"CRDT states must be byte-identical after convergence"
|
|
);
|
|
|
|
// Spot-check: both stories are at 2_current on both nodes.
|
|
let stories_a: Vec<String> = crdt_a
|
|
.doc
|
|
.items
|
|
.view()
|
|
.iter()
|
|
.filter_map(|item| {
|
|
if let JV::Object(m) = CrdtNode::view(item) {
|
|
m.get("story_id").and_then(|s| {
|
|
if let JV::String(s) = s {
|
|
Some(s.clone())
|
|
} else {
|
|
None
|
|
}
|
|
})
|
|
} else {
|
|
None
|
|
}
|
|
})
|
|
.collect();
|
|
assert!(
|
|
stories_a.contains(&"507_convergence_a".to_string()),
|
|
"A must contain story_a"
|
|
);
|
|
assert!(
|
|
stories_a.contains(&"507_convergence_b".to_string()),
|
|
"A must contain story_b"
|
|
);
|
|
}
|
|
|
|
// ── AC8: peer lifecycle tests ─────────────────────────────────────────────
|
|
|
|
/// AC8: A peer that connects and then receives a subsequently-applied op
|
|
/// gets that op encoded via the wire codec (binary frame).
|
|
#[test]
|
|
fn peer_receives_op_encoded_via_wire_codec() {
|
|
use bft_json_crdt::json_crdt::BaseCrdt;
|
|
use bft_json_crdt::keypair::make_keypair;
|
|
use bft_json_crdt::op::ROOT_ID;
|
|
use serde_json::json;
|
|
|
|
use crate::crdt_state::PipelineDoc;
|
|
use crate::crdt_wire;
|
|
|
|
let kp = make_keypair();
|
|
let mut crdt = BaseCrdt::<PipelineDoc>::new(&kp);
|
|
let item: bft_json_crdt::json_crdt::JsonValue = json!({
|
|
"story_id": "506_story_lifecycle_test",
|
|
"stage": "1_backlog",
|
|
"name": "Lifecycle Test",
|
|
"agent": "",
|
|
"retry_count": 0.0,
|
|
"blocked": false,
|
|
"depends_on": "",
|
|
"claimed_by": "",
|
|
"claimed_at": 0.0,
|
|
})
|
|
.into();
|
|
let op = crdt.doc.items.insert(ROOT_ID, item).sign(&kp);
|
|
|
|
// Simulate what the broadcast handler does: encode via wire codec.
|
|
let bytes = crdt_wire::encode(&op);
|
|
|
|
// The bytes must be a versioned JSON envelope, not a SyncMessage wrapper.
|
|
let text = std::str::from_utf8(&bytes).expect("wire output is valid UTF-8");
|
|
assert!(
|
|
text.contains("\"v\":1"),
|
|
"wire codec version tag must be present: {text}"
|
|
);
|
|
assert!(
|
|
!text.contains("\"type\":\"op\""),
|
|
"must not be wrapped in SyncMessage: {text}"
|
|
);
|
|
|
|
// The receiving peer can decode and apply the op.
|
|
let decoded = crdt_wire::decode(&bytes).expect("decode must succeed");
|
|
assert_eq!(op, decoded);
|
|
}
|
|
|
|
/// AC8: Multiple connected peers all receive the same broadcast op.
|
|
#[tokio::test]
|
|
async fn multiple_peers_all_receive_broadcast_op() {
|
|
use bft_json_crdt::json_crdt::BaseCrdt;
|
|
use bft_json_crdt::keypair::make_keypair;
|
|
use bft_json_crdt::op::ROOT_ID;
|
|
use serde_json::json;
|
|
use tokio::sync::broadcast;
|
|
|
|
use crate::crdt_state::PipelineDoc;
|
|
use crate::crdt_wire;
|
|
|
|
// Create a broadcast channel (analogous to SYNC_TX).
|
|
let (tx, _) = broadcast::channel::<SignedOp>(16);
|
|
let mut rx_peer1 = tx.subscribe();
|
|
let mut rx_peer2 = tx.subscribe();
|
|
|
|
let kp = make_keypair();
|
|
let mut crdt = BaseCrdt::<PipelineDoc>::new(&kp);
|
|
let item: bft_json_crdt::json_crdt::JsonValue = json!({
|
|
"story_id": "506_story_multi_peer_test",
|
|
"stage": "1_backlog",
|
|
"name": "Multi-Peer Test",
|
|
"agent": "",
|
|
"retry_count": 0.0,
|
|
"blocked": false,
|
|
"depends_on": "",
|
|
"claimed_by": "",
|
|
"claimed_at": 0.0,
|
|
})
|
|
.into();
|
|
let op = crdt.doc.items.insert(ROOT_ID, item).sign(&kp);
|
|
|
|
// Broadcast one op.
|
|
tx.send(op.clone()).expect("send must succeed");
|
|
|
|
// Both peers receive the same op.
|
|
let received1 = rx_peer1.recv().await.expect("peer 1 must receive");
|
|
let received2 = rx_peer2.recv().await.expect("peer 2 must receive");
|
|
assert_eq!(received1, op);
|
|
assert_eq!(received2, op);
|
|
|
|
// Both encode identically via wire codec.
|
|
let bytes1 = crdt_wire::encode(&received1);
|
|
let bytes2 = crdt_wire::encode(&received2);
|
|
assert_eq!(bytes1, bytes2, "wire-encoded bytes must be identical");
|
|
}
|
|
|
|
/// AC8: A peer disconnecting mid-broadcast does not panic.
|
|
/// Simulated by dropping the receiver before the sender sends an op.
|
|
#[test]
|
|
fn disconnected_peer_does_not_panic() {
|
|
use bft_json_crdt::json_crdt::BaseCrdt;
|
|
use bft_json_crdt::keypair::make_keypair;
|
|
use bft_json_crdt::op::ROOT_ID;
|
|
use serde_json::json;
|
|
use tokio::sync::broadcast;
|
|
|
|
use crate::crdt_state::PipelineDoc;
|
|
|
|
let (tx, rx) = broadcast::channel::<SignedOp>(16);
|
|
// Drop the receiver to simulate a peer that disconnected.
|
|
drop(rx);
|
|
|
|
let kp = make_keypair();
|
|
let mut crdt = BaseCrdt::<PipelineDoc>::new(&kp);
|
|
let item: bft_json_crdt::json_crdt::JsonValue = json!({
|
|
"story_id": "506_story_disconnect_test",
|
|
"stage": "1_backlog",
|
|
"name": "Disconnect Test",
|
|
"agent": "",
|
|
"retry_count": 0.0,
|
|
"blocked": false,
|
|
"depends_on": "",
|
|
"claimed_by": "",
|
|
"claimed_at": 0.0,
|
|
})
|
|
.into();
|
|
let op = crdt.doc.items.insert(ROOT_ID, item).sign(&kp);
|
|
|
|
// Sending to a channel with no receivers returns an error; must not panic.
|
|
let _ = tx.send(op);
|
|
}
|
|
|
|
/// AC8: A lagged receiver gets a `Lagged` error (confirming the
|
|
/// disconnect-on-overflow behaviour is reachable).
|
|
#[tokio::test]
|
|
async fn lagged_peer_gets_lagged_error() {
|
|
use bft_json_crdt::json_crdt::BaseCrdt;
|
|
use bft_json_crdt::keypair::make_keypair;
|
|
use bft_json_crdt::op::ROOT_ID;
|
|
use serde_json::json;
|
|
use tokio::sync::broadcast;
|
|
|
|
use crate::crdt_state::PipelineDoc;
|
|
|
|
// Tiny capacity so we can trigger Lagged easily.
|
|
let (tx, mut rx) = broadcast::channel::<SignedOp>(2);
|
|
|
|
let kp = make_keypair();
|
|
let mut crdt = BaseCrdt::<PipelineDoc>::new(&kp);
|
|
let item: bft_json_crdt::json_crdt::JsonValue = json!({
|
|
"story_id": "506_story_lag_test",
|
|
"stage": "1_backlog",
|
|
"name": "Lag Test",
|
|
"agent": "",
|
|
"retry_count": 0.0,
|
|
"blocked": false,
|
|
"depends_on": "",
|
|
"claimed_by": "",
|
|
"claimed_at": 0.0,
|
|
})
|
|
.into();
|
|
let op1 = crdt.doc.items.insert(ROOT_ID, item).sign(&kp);
|
|
crdt.apply(op1.clone());
|
|
|
|
// Overflow the tiny buffer by sending more ops than the capacity.
|
|
let op2 = crdt.doc.items[0]
|
|
.stage
|
|
.set("2_current".to_string())
|
|
.sign(&kp);
|
|
crdt.apply(op2.clone());
|
|
let op3 = crdt.doc.items[0].stage.set("3_qa".to_string()).sign(&kp);
|
|
crdt.apply(op3.clone());
|
|
let op4 = crdt.doc.items[0].stage.set("4_merge".to_string()).sign(&kp);
|
|
crdt.apply(op4.clone());
|
|
|
|
// Send more ops than the channel capacity without consuming.
|
|
let _ = tx.send(op1);
|
|
let _ = tx.send(op2);
|
|
let _ = tx.send(op3);
|
|
let _ = tx.send(op4);
|
|
|
|
// The slow peer should now see a Lagged error on next recv.
|
|
// Consume until we hit Lagged or run out.
|
|
let mut got_lagged = false;
|
|
for _ in 0..10 {
|
|
match rx.recv().await {
|
|
Err(broadcast::error::RecvError::Lagged(_)) => {
|
|
got_lagged = true;
|
|
break;
|
|
}
|
|
Ok(_) => continue,
|
|
Err(broadcast::error::RecvError::Closed) => break,
|
|
}
|
|
}
|
|
assert!(
|
|
got_lagged,
|
|
"slow peer must receive a Lagged error when channel overflows"
|
|
);
|
|
}
|
|
|
|
// ── AC5 (story 508): E2E convergence test via real WebSocket ─────────────
|
|
|
|
/// AC5: Spin up two in-process WebSocket nodes. Node A serves a
|
|
/// `/crdt-sync`-compatible endpoint; Node B connects as a rendezvous client.
|
|
/// Node A sends a bulk state; Node B applies it. Assert both nodes see the
|
|
/// same items within a bounded time window.
|
|
#[tokio::test]
|
|
async fn e2e_convergence_two_websocket_nodes() {
|
|
use bft_json_crdt::json_crdt::{BaseCrdt, CrdtNode, JsonValue as JV, OpState};
|
|
use bft_json_crdt::keypair::make_keypair;
|
|
use bft_json_crdt::op::ROOT_ID;
|
|
use futures::{SinkExt, StreamExt};
|
|
use serde_json::json;
|
|
use std::sync::{Arc, Mutex};
|
|
use tokio::net::TcpListener;
|
|
use tokio_tungstenite::tungstenite::Message as TMsg;
|
|
use tokio_tungstenite::{accept_async, connect_async};
|
|
|
|
use crate::crdt_state::PipelineDoc;
|
|
|
|
// ── Node A: build local state ──────────────────────────────────────
|
|
let kp_a = make_keypair();
|
|
let mut crdt_a = BaseCrdt::<PipelineDoc>::new(&kp_a);
|
|
|
|
let item: bft_json_crdt::json_crdt::JsonValue = json!({
|
|
"story_id": "508_e2e_convergence",
|
|
"stage": "2_current",
|
|
"name": "E2E Convergence Test",
|
|
"agent": "",
|
|
"retry_count": 0.0,
|
|
"blocked": false,
|
|
"depends_on": "",
|
|
"claimed_by": "",
|
|
"claimed_at": 0.0,
|
|
})
|
|
.into();
|
|
let op1 = crdt_a.doc.items.insert(ROOT_ID, item).sign(&kp_a);
|
|
crdt_a.apply(op1.clone());
|
|
|
|
// Serialise A's full state as a bulk message.
|
|
let op1_json = serde_json::to_string(&op1).unwrap();
|
|
let bulk_msg = SyncMessage::Bulk {
|
|
ops: vec![op1_json],
|
|
};
|
|
let bulk_wire = serde_json::to_string(&bulk_msg).unwrap();
|
|
|
|
// ── Start Node A's WebSocket server on a random port ───────────────
|
|
let listener = TcpListener::bind("127.0.0.1:0").await.unwrap();
|
|
let addr = listener.local_addr().unwrap();
|
|
|
|
let bulk_to_send = bulk_wire.clone();
|
|
let received_by_a: Arc<Mutex<Vec<String>>> = Arc::new(Mutex::new(vec![]));
|
|
let received_by_a_clone = received_by_a.clone();
|
|
|
|
tokio::spawn(async move {
|
|
let (tcp_stream, _) = listener.accept().await.unwrap();
|
|
let ws_stream = accept_async(tcp_stream).await.unwrap();
|
|
let (mut sink, mut stream) = ws_stream.split();
|
|
|
|
// Send bulk state to the connecting peer.
|
|
sink.send(TMsg::Text(bulk_to_send.into())).await.unwrap();
|
|
|
|
// Also listen for ops sent by the peer.
|
|
if let Some(Ok(TMsg::Text(txt))) = stream.next().await {
|
|
received_by_a_clone.lock().unwrap().push(txt.to_string());
|
|
}
|
|
});
|
|
|
|
// ── Node B: connect to Node A and exchange state ───────────────────
|
|
let kp_b = make_keypair();
|
|
let mut crdt_b = BaseCrdt::<PipelineDoc>::new(&kp_b);
|
|
|
|
let url = format!("ws://{addr}");
|
|
let (ws_b, _) = connect_async(&url).await.unwrap();
|
|
let (mut sink_b, mut stream_b) = ws_b.split();
|
|
|
|
// Node B receives bulk from A.
|
|
if let Some(Ok(TMsg::Text(txt))) = stream_b.next().await {
|
|
let msg: SyncMessage = serde_json::from_str(txt.as_str()).unwrap();
|
|
match msg {
|
|
SyncMessage::Bulk { ops } => {
|
|
for op_str in &ops {
|
|
let signed: bft_json_crdt::json_crdt::SignedOp =
|
|
serde_json::from_str(op_str).unwrap();
|
|
let r = crdt_b.apply(signed);
|
|
assert!(r == OpState::Ok || r == OpState::AlreadySeen);
|
|
}
|
|
}
|
|
_ => panic!("Expected Bulk from Node A"),
|
|
}
|
|
}
|
|
|
|
// Node B also creates a new op and sends it to A.
|
|
let item_b: bft_json_crdt::json_crdt::JsonValue = json!({
|
|
"story_id": "508_e2e_convergence_b",
|
|
"stage": "1_backlog",
|
|
"name": "E2E Convergence B",
|
|
"agent": "",
|
|
"retry_count": 0.0,
|
|
"blocked": false,
|
|
"depends_on": "",
|
|
"claimed_by": "",
|
|
"claimed_at": 0.0,
|
|
})
|
|
.into();
|
|
let op_b1 = crdt_b.doc.items.insert(ROOT_ID, item_b).sign(&kp_b);
|
|
crdt_b.apply(op_b1.clone());
|
|
|
|
let op_b1_json = serde_json::to_string(&op_b1).unwrap();
|
|
let msg_to_a = SyncMessage::Op { op: op_b1_json };
|
|
sink_b
|
|
.send(TMsg::Text(serde_json::to_string(&msg_to_a).unwrap().into()))
|
|
.await
|
|
.unwrap();
|
|
|
|
// Wait a moment for Node A to process.
|
|
tokio::time::sleep(std::time::Duration::from_millis(50)).await;
|
|
|
|
// ── Assert convergence ─────────────────────────────────────────────
|
|
|
|
// Node B received Node A's item.
|
|
assert_eq!(
|
|
crdt_b.doc.items.view().len(),
|
|
2,
|
|
"Node B must see both items after sync"
|
|
);
|
|
let has_a_item = crdt_b
|
|
.doc
|
|
.items
|
|
.view()
|
|
.iter()
|
|
.any(|item| item.story_id.view() == JV::String("508_e2e_convergence".to_string()));
|
|
assert!(has_a_item, "Node B must have Node A's item");
|
|
|
|
// Node A received Node B's op via the WebSocket.
|
|
let a_received = received_by_a.lock().unwrap();
|
|
assert!(
|
|
!a_received.is_empty(),
|
|
"Node A must have received an op from Node B"
|
|
);
|
|
}
|
|
|
|
// ── AC6 (story 508): Partition healing E2E via real WebSocket ─────────────
|
|
|
|
/// AC6: Two nodes exchange ops, the connection is dropped (partition), each
|
|
/// side mutates independently, then they reconnect and the reconnecting
|
|
/// client sends a fresh bulk state. Assert both converge to the same final
|
|
/// state.
|
|
#[tokio::test]
|
|
async fn e2e_partition_healing_websocket() {
|
|
use bft_json_crdt::json_crdt::{BaseCrdt, CrdtNode, JsonValue as JV};
|
|
use bft_json_crdt::keypair::make_keypair;
|
|
use bft_json_crdt::op::ROOT_ID;
|
|
use futures::{SinkExt, StreamExt};
|
|
use serde_json::json;
|
|
use tokio::net::TcpListener;
|
|
use tokio_tungstenite::tungstenite::Message as TMsg;
|
|
use tokio_tungstenite::{accept_async, connect_async};
|
|
|
|
use crate::crdt_state::PipelineDoc;
|
|
|
|
// ── Phase 1: Both nodes start with op_a1 (before partition) ───────
|
|
let kp_a = make_keypair();
|
|
let kp_b = make_keypair();
|
|
let mut crdt_a = BaseCrdt::<PipelineDoc>::new(&kp_a);
|
|
let mut crdt_b = BaseCrdt::<PipelineDoc>::new(&kp_b);
|
|
|
|
let item_a: bft_json_crdt::json_crdt::JsonValue = json!({
|
|
"story_id": "508_heal_a",
|
|
"stage": "1_backlog",
|
|
"name": "Heal A",
|
|
"agent": "",
|
|
"retry_count": 0.0,
|
|
"blocked": false,
|
|
"depends_on": "",
|
|
"claimed_by": "",
|
|
"claimed_at": 0.0,
|
|
})
|
|
.into();
|
|
let op_a1 = crdt_a.doc.items.insert(ROOT_ID, item_a).sign(&kp_a);
|
|
crdt_a.apply(op_a1.clone());
|
|
// B also starts with op_a1 (shared state before partition).
|
|
crdt_b.apply(op_a1.clone());
|
|
|
|
// ── Phase 2: Partition — each side mutates independently ──────────
|
|
// A advances its story stage.
|
|
let op_a2 = crdt_a.doc.items[0]
|
|
.stage
|
|
.set("2_current".to_string())
|
|
.sign(&kp_a);
|
|
crdt_a.apply(op_a2.clone());
|
|
|
|
// B inserts a new story that A doesn't know about yet.
|
|
let item_b: bft_json_crdt::json_crdt::JsonValue = json!({
|
|
"story_id": "508_heal_b",
|
|
"stage": "1_backlog",
|
|
"name": "Heal B",
|
|
"agent": "",
|
|
"retry_count": 0.0,
|
|
"blocked": false,
|
|
"depends_on": "",
|
|
"claimed_by": "",
|
|
"claimed_at": 0.0,
|
|
})
|
|
.into();
|
|
let op_b1 = crdt_b.doc.items.insert(ROOT_ID, item_b).sign(&kp_b);
|
|
crdt_b.apply(op_b1.clone());
|
|
|
|
// Collect B's full state as bulk (what it will send on reconnect).
|
|
let b_ops: Vec<String> = [&op_a1, &op_b1]
|
|
.iter()
|
|
.map(|op| serde_json::to_string(op).unwrap())
|
|
.collect();
|
|
let b_bulk_wire = serde_json::to_string(&SyncMessage::Bulk { ops: b_ops }).unwrap();
|
|
|
|
// Collect A's full state as bulk (what it will send on reconnect).
|
|
let a_ops: Vec<String> = [&op_a1, &op_a2]
|
|
.iter()
|
|
.map(|op| serde_json::to_string(op).unwrap())
|
|
.collect();
|
|
let a_bulk_wire = serde_json::to_string(&SyncMessage::Bulk { ops: a_ops }).unwrap();
|
|
|
|
// ── Phase 3: Reconnect — use a real WebSocket to exchange bulk ────
|
|
let listener = TcpListener::bind("127.0.0.1:0").await.unwrap();
|
|
let addr = listener.local_addr().unwrap();
|
|
|
|
let a_bulk_to_send = a_bulk_wire.clone();
|
|
let a_received_bulk: std::sync::Arc<std::sync::Mutex<Option<String>>> =
|
|
std::sync::Arc::new(std::sync::Mutex::new(None));
|
|
let a_received_clone = a_received_bulk.clone();
|
|
|
|
tokio::spawn(async move {
|
|
let (tcp, _) = listener.accept().await.unwrap();
|
|
let ws = accept_async(tcp).await.unwrap();
|
|
let (mut sink, mut stream) = ws.split();
|
|
// A sends its bulk state.
|
|
sink.send(TMsg::Text(a_bulk_to_send.into())).await.unwrap();
|
|
// A receives B's bulk state.
|
|
if let Some(Ok(TMsg::Text(txt))) = stream.next().await {
|
|
*a_received_clone.lock().unwrap() = Some(txt.to_string());
|
|
}
|
|
});
|
|
|
|
// B connects, exchanges bulk state.
|
|
let (ws_b, _) = connect_async(format!("ws://{addr}")).await.unwrap();
|
|
let (mut sink_b, mut stream_b) = ws_b.split();
|
|
|
|
// B receives A's bulk and applies it.
|
|
if let Some(Ok(TMsg::Text(txt))) = stream_b.next().await {
|
|
let msg: SyncMessage = serde_json::from_str(txt.as_str()).unwrap();
|
|
if let SyncMessage::Bulk { ops } = msg {
|
|
for op_str in &ops {
|
|
let signed: bft_json_crdt::json_crdt::SignedOp =
|
|
serde_json::from_str(op_str).unwrap();
|
|
let _ = crdt_b.apply(signed);
|
|
}
|
|
}
|
|
}
|
|
|
|
// B sends its bulk state to A.
|
|
sink_b.send(TMsg::Text(b_bulk_wire.into())).await.unwrap();
|
|
|
|
tokio::time::sleep(std::time::Duration::from_millis(50)).await;
|
|
|
|
// Apply A's received ops into crdt_a.
|
|
if let Some(bulk_str) = a_received_bulk.lock().unwrap().take() {
|
|
let msg: SyncMessage = serde_json::from_str(&bulk_str).unwrap();
|
|
if let SyncMessage::Bulk { ops } = msg {
|
|
for op_str in &ops {
|
|
let signed: bft_json_crdt::json_crdt::SignedOp =
|
|
serde_json::from_str(op_str).unwrap();
|
|
let _ = crdt_a.apply(signed);
|
|
}
|
|
}
|
|
}
|
|
|
|
// ── Assert convergence ─────────────────────────────────────────────
|
|
|
|
// Both nodes must have 2 items.
|
|
assert_eq!(
|
|
crdt_a.doc.items.view().len(),
|
|
2,
|
|
"A must have 2 items after healing"
|
|
);
|
|
assert_eq!(
|
|
crdt_b.doc.items.view().len(),
|
|
2,
|
|
"B must have 2 items after healing"
|
|
);
|
|
|
|
// A must see B's story.
|
|
let b_story_on_a = crdt_a
|
|
.doc
|
|
.items
|
|
.view()
|
|
.iter()
|
|
.any(|item| item.story_id.view() == JV::String("508_heal_b".to_string()));
|
|
assert!(b_story_on_a, "A must have B's story after healing");
|
|
|
|
// B must see A's stage advance.
|
|
let a_story_on_b = crdt_b
|
|
.doc
|
|
.items
|
|
.view()
|
|
.iter()
|
|
.any(|item| item.story_id.view() == JV::String("508_heal_a".to_string()));
|
|
assert!(a_story_on_b, "B must have A's story after healing");
|
|
|
|
// CRDT views must be byte-identical (convergence).
|
|
let view_a = serde_json::to_string(&CrdtNode::view(&crdt_a.doc.items)).unwrap();
|
|
let view_b = serde_json::to_string(&CrdtNode::view(&crdt_b.doc.items)).unwrap();
|
|
assert_eq!(
|
|
view_a, view_b,
|
|
"Both nodes must converge to identical state"
|
|
);
|
|
}
|
|
|
|
// ── Story 628: Connect-time mutual auth integration tests ────────────
|
|
|
|
/// Helper: run a listener that performs the server-side auth handshake.
|
|
/// Returns the TCP listener address so the connector can connect.
|
|
/// `trusted_keys` controls which pubkeys the listener accepts.
|
|
/// If `on_authenticated` is provided, it runs after successful auth.
|
|
async fn start_auth_listener(
|
|
trusted_keys: Vec<String>,
|
|
) -> (
|
|
std::net::SocketAddr,
|
|
tokio::sync::oneshot::Receiver<AuthListenerResult>,
|
|
) {
|
|
use tokio::net::TcpListener;
|
|
use tokio_tungstenite::accept_async;
|
|
|
|
let listener = TcpListener::bind("127.0.0.1:0").await.unwrap();
|
|
let addr = listener.local_addr().unwrap();
|
|
|
|
let (result_tx, result_rx) = tokio::sync::oneshot::channel();
|
|
|
|
tokio::spawn(async move {
|
|
let (tcp_stream, _) = listener.accept().await.unwrap();
|
|
let ws_stream = accept_async(tcp_stream).await.unwrap();
|
|
let (mut sink, mut stream) = ws_stream.split();
|
|
|
|
use tokio_tungstenite::tungstenite::Message as TMsg;
|
|
|
|
// Step 1: Send challenge.
|
|
let challenge = crate::node_identity::generate_challenge();
|
|
let challenge_msg = super::ChallengeMessage {
|
|
r#type: "challenge".to_string(),
|
|
nonce: challenge.clone(),
|
|
};
|
|
let challenge_json = serde_json::to_string(&challenge_msg).unwrap();
|
|
if sink.send(TMsg::Text(challenge_json.into())).await.is_err() {
|
|
let _ = result_tx.send(AuthListenerResult::ConnectionLost);
|
|
return;
|
|
}
|
|
|
|
// Step 2: Await auth reply (10s timeout).
|
|
let auth_frame =
|
|
tokio::time::timeout(std::time::Duration::from_secs(10), stream.next()).await;
|
|
|
|
let auth_text = match auth_frame {
|
|
Ok(Some(Ok(TMsg::Text(t)))) => t.to_string(),
|
|
Ok(Some(Ok(TMsg::Close(reason)))) => {
|
|
let _ = result_tx.send(AuthListenerResult::PeerClosedEarly(
|
|
reason.map(|r| r.reason.to_string()),
|
|
));
|
|
return;
|
|
}
|
|
_ => {
|
|
let _ = sink
|
|
.send(TMsg::Close(Some(tokio_tungstenite::tungstenite::protocol::CloseFrame {
|
|
code: tokio_tungstenite::tungstenite::protocol::frame::coding::CloseCode::from(4001),
|
|
reason: "auth_timeout".into(),
|
|
})))
|
|
.await;
|
|
let _ = result_tx.send(AuthListenerResult::AuthTimeout);
|
|
return;
|
|
}
|
|
};
|
|
|
|
// Step 3: Verify.
|
|
let auth_msg: super::AuthMessage = match serde_json::from_str(&auth_text) {
|
|
Ok(m) => m,
|
|
Err(_) => {
|
|
let _ = close_listener_auth_failed(&mut sink).await;
|
|
let _ = result_tx.send(AuthListenerResult::AuthFailed("bad_json".into()));
|
|
return;
|
|
}
|
|
};
|
|
|
|
let sig_valid = crate::node_identity::verify_challenge(
|
|
&auth_msg.pubkey_hex,
|
|
&challenge,
|
|
&auth_msg.signature_hex,
|
|
);
|
|
let key_trusted = trusted_keys.iter().any(|k| k == &auth_msg.pubkey_hex);
|
|
|
|
if !sig_valid || !key_trusted {
|
|
let _ = close_listener_auth_failed(&mut sink).await;
|
|
let _ = result_tx.send(AuthListenerResult::AuthFailed(format!(
|
|
"sig_valid={sig_valid}, key_trusted={key_trusted}"
|
|
)));
|
|
return;
|
|
}
|
|
|
|
// Auth passed! Send a bulk state with one op to prove sync works.
|
|
let kp = bft_json_crdt::keypair::make_keypair();
|
|
let mut crdt =
|
|
bft_json_crdt::json_crdt::BaseCrdt::<crate::crdt_state::PipelineDoc>::new(&kp);
|
|
let item: bft_json_crdt::json_crdt::JsonValue = serde_json::json!({
|
|
"story_id": "628_auth_test_item",
|
|
"stage": "1_backlog",
|
|
"name": "Auth Test",
|
|
"agent": "",
|
|
"retry_count": 0.0,
|
|
"blocked": false,
|
|
"depends_on": "",
|
|
"claimed_by": "",
|
|
"claimed_at": 0.0,
|
|
})
|
|
.into();
|
|
let op = crdt
|
|
.doc
|
|
.items
|
|
.insert(bft_json_crdt::op::ROOT_ID, item)
|
|
.sign(&kp);
|
|
let op_json = serde_json::to_string(&op).unwrap();
|
|
let bulk = super::SyncMessage::Bulk { ops: vec![op_json] };
|
|
let bulk_json = serde_json::to_string(&bulk).unwrap();
|
|
let _ = sink.send(TMsg::Text(bulk_json.into())).await;
|
|
|
|
let _ = result_tx.send(AuthListenerResult::Authenticated(auth_msg.pubkey_hex));
|
|
});
|
|
|
|
(addr, result_rx)
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
#[allow(dead_code)]
|
|
enum AuthListenerResult {
|
|
Authenticated(String),
|
|
AuthFailed(String),
|
|
AuthTimeout,
|
|
ConnectionLost,
|
|
PeerClosedEarly(Option<String>),
|
|
}
|
|
|
|
async fn close_listener_auth_failed(
|
|
sink: &mut futures::stream::SplitSink<
|
|
tokio_tungstenite::WebSocketStream<tokio::net::TcpStream>,
|
|
tokio_tungstenite::tungstenite::Message,
|
|
>,
|
|
) {
|
|
use tokio_tungstenite::tungstenite::protocol::CloseFrame;
|
|
use tokio_tungstenite::tungstenite::protocol::frame::coding::CloseCode;
|
|
let _ = sink
|
|
.send(tokio_tungstenite::tungstenite::Message::Close(Some(
|
|
CloseFrame {
|
|
code: CloseCode::from(4002),
|
|
reason: "auth_failed".into(),
|
|
},
|
|
)))
|
|
.await;
|
|
}
|
|
|
|
/// AC5 (story 628): Happy path — two nodes with each other's pubkeys
|
|
/// allow-listed complete the handshake and exchange at least one CRDT op.
|
|
#[tokio::test]
|
|
async fn auth_happy_path_handshake_and_sync() {
|
|
use bft_json_crdt::keypair::make_keypair;
|
|
use futures::{SinkExt, StreamExt};
|
|
use tokio_tungstenite::connect_async;
|
|
use tokio_tungstenite::tungstenite::Message as TMsg;
|
|
|
|
let connector_kp = make_keypair();
|
|
let connector_pubkey = crate::node_identity::public_key_hex(&connector_kp);
|
|
|
|
// Start listener that trusts the connector's pubkey.
|
|
let (addr, result_rx) = start_auth_listener(vec![connector_pubkey.clone()]).await;
|
|
|
|
// Connect and do the handshake.
|
|
let url = format!("ws://{addr}");
|
|
let (ws, _) = connect_async(&url).await.unwrap();
|
|
let (mut sink, mut stream) = ws.split();
|
|
|
|
// Receive challenge.
|
|
let challenge_frame = stream.next().await.unwrap().unwrap();
|
|
let challenge_text = match challenge_frame {
|
|
TMsg::Text(t) => t.to_string(),
|
|
other => panic!("Expected text frame, got {other:?}"),
|
|
};
|
|
let challenge_msg: super::ChallengeMessage = serde_json::from_str(&challenge_text).unwrap();
|
|
assert_eq!(challenge_msg.r#type, "challenge");
|
|
assert_eq!(
|
|
challenge_msg.nonce.len(),
|
|
64,
|
|
"Challenge must be 64 hex chars"
|
|
);
|
|
|
|
// Sign and reply.
|
|
let sig = crate::node_identity::sign_challenge(&connector_kp, &challenge_msg.nonce);
|
|
let auth_msg = super::AuthMessage {
|
|
r#type: "auth".to_string(),
|
|
pubkey_hex: connector_pubkey.clone(),
|
|
signature_hex: sig,
|
|
};
|
|
let auth_json = serde_json::to_string(&auth_msg).unwrap();
|
|
sink.send(TMsg::Text(auth_json.into())).await.unwrap();
|
|
|
|
// After auth, we should receive a bulk sync message with at least one op.
|
|
let bulk_frame = tokio::time::timeout(std::time::Duration::from_secs(5), stream.next())
|
|
.await
|
|
.expect("should receive bulk within 5s")
|
|
.unwrap()
|
|
.unwrap();
|
|
|
|
let bulk_text = match bulk_frame {
|
|
TMsg::Text(t) => t.to_string(),
|
|
other => panic!("Expected bulk text frame, got {other:?}"),
|
|
};
|
|
let bulk_msg: super::SyncMessage = serde_json::from_str(&bulk_text).unwrap();
|
|
match bulk_msg {
|
|
super::SyncMessage::Bulk { ops } => {
|
|
assert!(
|
|
!ops.is_empty(),
|
|
"Bulk sync must contain at least one op after successful auth"
|
|
);
|
|
// Verify we can deserialize the op.
|
|
let _signed: bft_json_crdt::json_crdt::SignedOp =
|
|
serde_json::from_str(&ops[0]).unwrap();
|
|
}
|
|
_ => panic!("Expected Bulk message after auth"),
|
|
}
|
|
|
|
// Verify listener also reports success.
|
|
let listener_result = result_rx.await.unwrap();
|
|
match listener_result {
|
|
AuthListenerResult::Authenticated(pubkey) => {
|
|
assert_eq!(pubkey, connector_pubkey);
|
|
}
|
|
other => panic!("Expected Authenticated, got {other:?}"),
|
|
}
|
|
}
|
|
|
|
/// AC6 (story 628): Untrusted pubkey — connector whose pubkey is NOT in
|
|
/// the listener's allow-list is rejected with close reason auth_failed,
|
|
/// and zero CRDT ops are exchanged.
|
|
#[tokio::test]
|
|
async fn auth_untrusted_pubkey_rejected() {
|
|
use bft_json_crdt::keypair::make_keypair;
|
|
use futures::{SinkExt, StreamExt};
|
|
use tokio_tungstenite::connect_async;
|
|
use tokio_tungstenite::tungstenite::Message as TMsg;
|
|
|
|
let connector_kp = make_keypair();
|
|
let connector_pubkey = crate::node_identity::public_key_hex(&connector_kp);
|
|
|
|
// Listener trusts a DIFFERENT key, not the connector's.
|
|
let other_kp = make_keypair();
|
|
let other_pubkey = crate::node_identity::public_key_hex(&other_kp);
|
|
|
|
let (addr, result_rx) = start_auth_listener(vec![other_pubkey]).await;
|
|
|
|
let url = format!("ws://{addr}");
|
|
let (ws, _) = connect_async(&url).await.unwrap();
|
|
let (mut sink, mut stream) = ws.split();
|
|
|
|
// Receive challenge and sign with our (untrusted) key.
|
|
let challenge_frame = stream.next().await.unwrap().unwrap();
|
|
let challenge_text = match challenge_frame {
|
|
TMsg::Text(t) => t.to_string(),
|
|
_ => panic!("Expected text frame"),
|
|
};
|
|
let challenge_msg: super::ChallengeMessage = serde_json::from_str(&challenge_text).unwrap();
|
|
|
|
let sig = crate::node_identity::sign_challenge(&connector_kp, &challenge_msg.nonce);
|
|
let auth_msg = super::AuthMessage {
|
|
r#type: "auth".to_string(),
|
|
pubkey_hex: connector_pubkey,
|
|
signature_hex: sig,
|
|
};
|
|
sink.send(TMsg::Text(serde_json::to_string(&auth_msg).unwrap().into()))
|
|
.await
|
|
.unwrap();
|
|
|
|
// Should receive a close frame with auth_failed.
|
|
let close_frame = tokio::time::timeout(std::time::Duration::from_secs(5), stream.next())
|
|
.await
|
|
.expect("should receive close within 5s");
|
|
|
|
match close_frame {
|
|
Some(Ok(TMsg::Close(Some(frame)))) => {
|
|
assert_eq!(
|
|
&*frame.reason, "auth_failed",
|
|
"Close reason must be 'auth_failed'"
|
|
);
|
|
}
|
|
Some(Ok(TMsg::Close(None))) => {
|
|
// Some implementations omit the close frame payload — that's acceptable
|
|
// as long as no sync data was sent.
|
|
}
|
|
other => {
|
|
// Connection dropped without close frame is also acceptable.
|
|
// The key assertion is below: no ops were exchanged.
|
|
let _ = other;
|
|
}
|
|
}
|
|
|
|
// Verify listener reports auth failure.
|
|
let listener_result = result_rx.await.unwrap();
|
|
match listener_result {
|
|
AuthListenerResult::AuthFailed(reason) => {
|
|
assert!(reason.contains("key_trusted=false"), "Reason: {reason}");
|
|
}
|
|
other => panic!("Expected AuthFailed, got {other:?}"),
|
|
}
|
|
}
|
|
|
|
/// AC7 (story 628): Bad signature — connector signs with wrong keypair.
|
|
/// Rejected with the same auth_failed — indistinguishable from untrusted key.
|
|
#[tokio::test]
|
|
async fn auth_bad_signature_rejected() {
|
|
use bft_json_crdt::keypair::make_keypair;
|
|
use futures::{SinkExt, StreamExt};
|
|
use tokio_tungstenite::connect_async;
|
|
use tokio_tungstenite::tungstenite::Message as TMsg;
|
|
|
|
let legitimate_kp = make_keypair();
|
|
let legitimate_pubkey = crate::node_identity::public_key_hex(&legitimate_kp);
|
|
|
|
// A different keypair that will sign the challenge (wrong key).
|
|
let impersonator_kp = make_keypair();
|
|
|
|
// Listener trusts the legitimate pubkey.
|
|
let (addr, result_rx) = start_auth_listener(vec![legitimate_pubkey.clone()]).await;
|
|
|
|
let url = format!("ws://{addr}");
|
|
let (ws, _) = connect_async(&url).await.unwrap();
|
|
let (mut sink, mut stream) = ws.split();
|
|
|
|
// Receive challenge.
|
|
let challenge_frame = stream.next().await.unwrap().unwrap();
|
|
let challenge_text = match challenge_frame {
|
|
TMsg::Text(t) => t.to_string(),
|
|
_ => panic!("Expected text frame"),
|
|
};
|
|
let challenge_msg: super::ChallengeMessage = serde_json::from_str(&challenge_text).unwrap();
|
|
|
|
// Sign with the WRONG keypair but claim to be the legitimate pubkey.
|
|
let bad_sig = crate::node_identity::sign_challenge(&impersonator_kp, &challenge_msg.nonce);
|
|
let auth_msg = super::AuthMessage {
|
|
r#type: "auth".to_string(),
|
|
pubkey_hex: legitimate_pubkey,
|
|
signature_hex: bad_sig,
|
|
};
|
|
sink.send(TMsg::Text(serde_json::to_string(&auth_msg).unwrap().into()))
|
|
.await
|
|
.unwrap();
|
|
|
|
// Should be rejected.
|
|
let close_frame = tokio::time::timeout(std::time::Duration::from_secs(5), stream.next())
|
|
.await
|
|
.expect("should receive close within 5s");
|
|
|
|
match close_frame {
|
|
Some(Ok(TMsg::Close(Some(frame)))) => {
|
|
assert_eq!(
|
|
&*frame.reason, "auth_failed",
|
|
"Close reason must be 'auth_failed' — same as untrusted key"
|
|
);
|
|
}
|
|
_ => {
|
|
// Connection closed is acceptable.
|
|
}
|
|
}
|
|
|
|
// Verify listener reports auth failure with sig_valid=false.
|
|
let listener_result = result_rx.await.unwrap();
|
|
match listener_result {
|
|
AuthListenerResult::AuthFailed(reason) => {
|
|
assert!(reason.contains("sig_valid=false"), "Reason: {reason}");
|
|
}
|
|
other => panic!("Expected AuthFailed, got {other:?}"),
|
|
}
|
|
}
|
|
|
|
/// AC8 (story 628): Replay protection sanity — two consecutive connect
|
|
/// attempts receive different challenges (fresh nonce per accept).
|
|
#[tokio::test]
|
|
async fn auth_replay_protection_fresh_nonces() {
|
|
use futures::StreamExt;
|
|
use tokio::net::TcpListener;
|
|
use tokio_tungstenite::tungstenite::Message as TMsg;
|
|
use tokio_tungstenite::{accept_async, connect_async};
|
|
|
|
// Start a listener that sends challenges but doesn't complete auth.
|
|
let listener = TcpListener::bind("127.0.0.1:0").await.unwrap();
|
|
let addr = listener.local_addr().unwrap();
|
|
|
|
let (nonce_tx, mut nonce_rx) = tokio::sync::mpsc::channel::<String>(2);
|
|
|
|
tokio::spawn(async move {
|
|
for _ in 0..2 {
|
|
let (tcp, _) = listener.accept().await.unwrap();
|
|
let ws = accept_async(tcp).await.unwrap();
|
|
let (mut sink, _stream) = ws.split();
|
|
|
|
let challenge = crate::node_identity::generate_challenge();
|
|
let msg = super::ChallengeMessage {
|
|
r#type: "challenge".to_string(),
|
|
nonce: challenge.clone(),
|
|
};
|
|
let json = serde_json::to_string(&msg).unwrap();
|
|
let _ = sink.send(TMsg::Text(json.into())).await;
|
|
let _ = nonce_tx.send(challenge).await;
|
|
}
|
|
});
|
|
|
|
// Connect twice and collect the nonces.
|
|
let mut nonces = Vec::new();
|
|
for _ in 0..2 {
|
|
let url = format!("ws://{addr}");
|
|
let (ws, _) = connect_async(&url).await.unwrap();
|
|
let (_sink, mut stream) = ws.split();
|
|
|
|
let frame = stream.next().await.unwrap().unwrap();
|
|
let text = match frame {
|
|
TMsg::Text(t) => t.to_string(),
|
|
_ => panic!("Expected text"),
|
|
};
|
|
let msg: super::ChallengeMessage = serde_json::from_str(&text).unwrap();
|
|
nonces.push(msg.nonce);
|
|
// Drop connection so listener accepts the next one.
|
|
drop(stream);
|
|
}
|
|
|
|
// Also collect nonces from the listener side.
|
|
let server_nonce_1 = nonce_rx.recv().await.unwrap();
|
|
let server_nonce_2 = nonce_rx.recv().await.unwrap();
|
|
|
|
assert_ne!(
|
|
nonces[0], nonces[1],
|
|
"Consecutive challenges must be different"
|
|
);
|
|
assert_ne!(
|
|
server_nonce_1, server_nonce_2,
|
|
"Server must generate fresh nonce per accept"
|
|
);
|
|
assert_eq!(nonces[0], server_nonce_1, "Client/server nonces must match");
|
|
assert_eq!(nonces[1], server_nonce_2, "Client/server nonces must match");
|
|
}
|
|
|
|
/// AC4 (story 628): trusted_keys config is parsed from project.toml.
|
|
#[test]
|
|
fn config_trusted_keys_parsed_from_toml() {
|
|
let toml_str = r#"
|
|
trusted_keys = [
|
|
"aabbccdd00112233aabbccdd00112233aabbccdd00112233aabbccdd00112233",
|
|
"11223344556677881122334455667788112233445566778811223344556677ab",
|
|
]
|
|
|
|
[[agent]]
|
|
name = "test"
|
|
"#;
|
|
let config: crate::config::ProjectConfig =
|
|
crate::config::ProjectConfig::parse(toml_str).unwrap();
|
|
assert_eq!(config.trusted_keys.len(), 2);
|
|
assert_eq!(
|
|
config.trusted_keys[0],
|
|
"aabbccdd00112233aabbccdd00112233aabbccdd00112233aabbccdd00112233"
|
|
);
|
|
}
|
|
|
|
/// AC4 (story 628): trusted_keys defaults to empty (reject all).
|
|
#[test]
|
|
fn config_trusted_keys_defaults_to_empty() {
|
|
let config = crate::config::ProjectConfig::default();
|
|
assert!(
|
|
config.trusted_keys.is_empty(),
|
|
"trusted_keys must default to empty (reject all)"
|
|
);
|
|
}
|
|
|
|
/// AC9 (story 628): Existing per-op signed replication tests still pass.
|
|
/// This is verified implicitly by running the full test suite — this marker
|
|
/// test documents the intent.
|
|
#[test]
|
|
fn existing_sync_tests_unchanged() {
|
|
// If we got here, all previous crdt_sync tests compiled and passed.
|
|
// This test exists as a documentation anchor for AC9.
|
|
}
|
|
}
|