* Executes the middleware for an incoming namespace not already created on the server. * * @param name - name of incoming namespace * @param auth - the auth parameters * @param fn - callback * * @private
(
name: string,
auth: { [key: string]: any },
fn: (
nsp:
| Namespace<ListenEvents, EmitEvents, ServerSideEvents, SocketData>
| false,
) => void,
)
| 368 | * @private |
| 369 | */ |
| 370 | _checkNamespace( |
| 371 | name: string, |
| 372 | auth: { [key: string]: any }, |
| 373 | fn: ( |
| 374 | nsp: |
| 375 | | Namespace<ListenEvents, EmitEvents, ServerSideEvents, SocketData> |
| 376 | | false, |
| 377 | ) => void, |
| 378 | ): void { |
| 379 | if (this.parentNsps.size === 0) return fn(false); |
| 380 | |
| 381 | const keysIterator = this.parentNsps.keys(); |
| 382 | |
| 383 | const run = () => { |
| 384 | const nextFn = keysIterator.next(); |
| 385 | if (nextFn.done) { |
| 386 | return fn(false); |
| 387 | } |
| 388 | nextFn.value(name, auth, (err, allow) => { |
| 389 | if (err || !allow) { |
| 390 | return run(); |
| 391 | } |
| 392 | if (this._nsps.has(name)) { |
| 393 | // the namespace was created in the meantime |
| 394 | debug("dynamic namespace %s already exists", name); |
| 395 | return fn(this._nsps.get(name) as Namespace); |
| 396 | } |
| 397 | const namespace = this.parentNsps.get(nextFn.value)!.createChild(name); |
| 398 | debug("dynamic namespace %s was created", name); |
| 399 | fn(namespace); |
| 400 | }); |
| 401 | }; |
| 402 | |
| 403 | run(); |
| 404 | } |
| 405 | |
| 406 | /** |
| 407 | * Sets the client serving path. |