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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 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 | 6x 6x 6x 6x 6x 6x 6x 4x 6x 6x 3x 6x 3x 3x 3x 3x 1x 2x 1x 1x 6x | import { HttpClient } from '@angular/common/http';
import { Injectable } from '@angular/core';
import { ActivatedRouteSnapshot, CanActivate, CanActivateChild, Router } from '@angular/router';
import { of as observableOf } from 'rxjs';
import { catchError, map } from 'rxjs/operators';
/**
* This service checks if a route can be activated by executing a
* REST API call to '/api/<apiPath>/status'. If the returned response
* states that the module is not available, then the user is redirected
* to the specified <redirectTo> URL path.
*
* A controller implementing this endpoint should return an object of
* the following form:
* {'available': true|false, 'message': null|string}.
*
* The configuration of this guard should look like this:
* const routes: Routes = [
* {
* path: 'rgw/bucket',
* component: RgwBucketListComponent,
* canActivate: [AuthGuardService, ModuleStatusGuardService],
* data: {
* moduleStatusGuardConfig: {
* apiPath: 'rgw',
* redirectTo: 'rgw/501'
* }
* }
* },
* ...
*/
@Injectable({
providedIn: 'root'
})
export class ModuleStatusGuardService implements CanActivate, CanActivateChild {
// TODO: Hotfix - remove WHITELIST'ing when a generic ErrorComponent is implemented
static readonly WHITELIST: string[] = ['501'];
constructor(private http: HttpClient, private router: Router) {}
canActivate(route: ActivatedRouteSnapshot) {
return this.doCheck(route);
}
canActivateChild(childRoute: ActivatedRouteSnapshot) {
return this.doCheck(childRoute);
}
private doCheck(route: ActivatedRouteSnapshot) {
Iif (route.url.length > 0 && ModuleStatusGuardService.WHITELIST.includes(route.url[0].path)) {
return observableOf(true);
}
const config = route.data['moduleStatusGuardConfig'];
return this.http.get(`api/${config.apiPath}/status`).pipe(
map((resp: any) => {
if (!resp.available) {
this.router.navigate([config.redirectTo, resp.message || '']);
}
return resp.available;
}),
catchError(() => {
this.router.navigate([config.redirectTo]);
return observableOf(false);
})
);
}
}
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