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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | 1x 5x 5x 5x 5x 5x 3x 2x | import { inject } from '@angular/core';
import type { User } from '@angular/fire/auth';
import { Router } from '@angular/router';
import type {
ActivatedRouteSnapshot,
CanActivateChildFn,
RouterStateSnapshot,
UrlTree,
} from '@angular/router';
import { map } from 'rxjs';
import type { Observable } from 'rxjs';
import { USER$ } from '../user.token';
/**
* Requires that there not be a currently logged in user to navigate to certain routes.
* For example, routes that are for logging in and recovering accounts.
* Can be used for both CanActivate and CanActivateChild guards.
*/
export const noAuthGuard: CanActivateChildFn = (
childRoute: ActivatedRouteSnapshot,
_state: RouterStateSnapshot,
): Observable<UrlTree | true> => {
const router = inject(Router);
// Navigate to the `next` query parameter if set, else to the root and allow default redirectTo Route to decide initial destination.
const nextUrl = childRoute.queryParamMap.get('next') ?? '/';
const user$ = inject(USER$);
return user$.pipe(
map((maybeUser: User | null): UrlTree | true => {
if (maybeUser) {
return router.parseUrl(nextUrl);
}
return true;
}),
);
};
|