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feat: optional per-room JetStream persistence (history + offline replay), gated by RoomPolicy.Persist

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This commit is contained in:
agent
2026-06-03 21:48:55 +02:00
parent bb2e412744
commit 8c680bc002
8 changed files with 578 additions and 45 deletions
Download Patch File Download Diff File Expand all files Collapse all files
playground/index.html
+10 -2
View File
@@ -166,6 +166,13 @@
<input id="roomEncrypt" type="checkbox" />
<label for="roomEncrypt">&#128274; encrypted (E2E)</label>
</div>
<div class="checkrow">
<input id="roomPersist" type="checkbox" />
<label for="roomPersist">&#128450; persistente (historial)</label>
</div>
<div class="help" style="margin:-4px 0 8px; font-size:12px; color:var(--muted)">
persistente = quien se une despues ve el historial; sin persistir = solo mensajes nuevos (NATS simple).
</div>
<button id="createRoomBtn" disabled>Create room</button>
<div style="border-top:1px solid var(--border); margin:12px 0"></div>
<label>Join by room_id</label>
@@ -370,16 +377,17 @@ $("connectBtn").onclick = async () => {
$("createRoomBtn").onclick = async () => {
const subject = $("roomSubject").value.trim();
const encrypt = $("roomEncrypt").checked;
const persist = $("roomPersist").checked;
if (!subject) { setStatus("roomStatus", "subject required", "bad"); return; }
try {
const res = await api("/api/room", { peer: state.peer, subject, encrypt });
const res = await api("/api/room", { peer: state.peer, subject, encrypt, persist });
state.rooms[res.room_id] = { subject: res.subject, encrypt: res.encrypt };
refreshRoomSelect();
$("activeRoom").value = res.room_id;
setStatus("roomStatus", "created " + res.room_id + " (click to copy)", "ok");
$("roomStatus").style.cursor = "pointer";
$("roomStatus").onclick = () => navigator.clipboard.writeText(res.room_id);
logSys("created room " + res.subject + " [" + short(res.room_id) + "]" + (encrypt ? " 🔒" : ""));
logSys("created room " + res.subject + " [" + short(res.room_id) + "]" + (encrypt ? " 🔒" : "") + (res.persist ? " 🗄" : ""));
} catch (e) {
setStatus("roomStatus", e.message, "bad");
}
playground/server.go
+10 -11
View File
@@ -34,8 +34,6 @@ import (
_ "embed"
"github.com/nats-io/nats.go"
"github.com/enmanuel/unibus/pkg/blobstore"
"github.com/enmanuel/unibus/pkg/client"
"github.com/enmanuel/unibus/pkg/embeddednats"
@@ -86,9 +84,9 @@ type peerState struct {
endpoint client.Endpoint
mu sync.Mutex
subs map[string]*nats.Subscription // roomID -> subscription
rooms map[string]roomInfo // roomID -> subject/encrypt
listeners map[chan Event]struct{} // attached SSE channels
subs map[string]*client.Sub // roomID -> subscription
rooms map[string]roomInfo // roomID -> subject/encrypt
listeners map[chan Event]struct{} // attached SSE channels
}
// emit fans an event out to all attached listeners without blocking on a slow
@@ -155,7 +153,7 @@ func (h *Hub) getOrCreate(name string) (*peerState, error) {
name: name,
client: c,
endpoint: c.Endpoint(),
subs: map[string]*nats.Subscription{},
subs: map[string]*client.Sub{},
rooms: map[string]roomInfo{},
listeners: map[chan Event]struct{}{},
}
@@ -311,6 +309,7 @@ func (h *Hub) handleRoom(w http.ResponseWriter, r *http.Request) {
Peer string `json:"peer"`
Subject string `json:"subject"`
Encrypt bool `json:"encrypt"`
Persist bool `json:"persist"`
}
if err := decodeBody(r, &req); err != nil || req.Peer == "" || req.Subject == "" {
writeErr(w, http.StatusBadRequest, "peer and subject required")
@@ -321,10 +320,10 @@ func (h *Hub) handleRoom(w http.ResponseWriter, r *http.Request) {
writeErr(w, http.StatusBadRequest, "unknown peer "+req.Peer)
return
}
policy := room.ModeNATS
if req.Encrypt {
policy = room.ModeMatrix
}
// The two checkboxes map to an explicit per-room policy. encrypt drives both
// encryption and per-message signing; persist (default false) independently
// toggles durable JetStream history. persist=false keeps plain ephemeral NATS.
policy := room.Policy{Encrypt: req.Encrypt, Persist: req.Persist, SignMsgs: req.Encrypt}
roomID, err := p.client.CreateRoom(req.Subject, policy)
if err != nil {
writeErr(w, http.StatusInternalServerError, err.Error())
@@ -336,7 +335,7 @@ func (h *Hub) handleRoom(w http.ResponseWriter, r *http.Request) {
return
}
writeJSON(w, http.StatusOK, map[string]any{
"room_id": roomID, "subject": req.Subject, "encrypt": req.Encrypt,
"room_id": roomID, "subject": req.Subject, "encrypt": req.Encrypt, "persist": req.Persist,
})
}