seitime-frappe/realtime/index.js

65 lines
1.8 KiB
JavaScript

const { Server } = require("socket.io");
const http = require("node:http");
const { get_conf, get_redis_subscriber } = require("../node_utils");
const conf = get_conf();
const server = http.createServer();
let io = new Server(server, {
cors: {
// Should be fine since we are ensuring whether hostname and origin are same before adding setting listeners for s socket
origin: true,
credentials: true,
},
cleanupEmptyChildNamespaces: true,
});
// Multitenancy implementation.
// allow arbitrary sitename as namespaces
// namespaces get validated during authentication.
const realtime = io.of(/^\/.*$/);
// load and register middlewares
const authenticate = require("./middlewares/authenticate");
realtime.use(authenticate);
// =======================
// load and register handlers
const frappe_handlers = require("./handlers/frappe_handlers");
function on_connection(socket) {
frappe_handlers(realtime, socket);
// ESBUild "open in editor" on error
socket.on("open_in_editor", async (data) => {
await subscriber.connect();
subscriber.publish("open_in_editor", JSON.stringify(data));
});
}
realtime.on("connection", on_connection);
// =======================
// Consume events sent from python via redis pub-sub channel.
const subscriber = get_redis_subscriber();
(async () => {
await subscriber.connect();
subscriber.subscribe("events", (message) => {
message = JSON.parse(message);
let namespace = "/" + message.namespace;
if (message.room) {
io.of(namespace).to(message.room).emit(message.event, message.message);
} else {
// publish to ALL sites only used for things like build event.
realtime.emit(message.event, message.message);
}
});
})();
// =======================
let uds = conf.socketio_uds;
let port = conf.socketio_port;
server.listen(uds || port, () => {
console.log("Realtime service listening on: ", uds || port);
});