openaire-library/connect/communityGuard/isCommunityOrAdmin.ts

import {Injectable} from '@angular/core';
import {ActivatedRouteSnapshot, CanActivate, Router, RouterStateSnapshot} from '@angular/router';
import {Observable} from 'rxjs';
import {filter, map, mergeMap, take} from "rxjs/operators";
import {UserManagementService} from "../../services/user-management.service";
import {EnvironmentSpecificService} from "../../utils/properties/environment-specific.service";
import {Session} from "../../login/utils/helper.class";

@Injectable()
export class IsCommunityOrAdmin implements CanActivate {

  constructor(private router: Router,
              private userManagementService: UserManagementService,
              private propertiesService: EnvironmentSpecificService) {
  }
  /*
  //TODO add login guard and simplify this method
    check(community: string): Observable<boolean> | boolean {
    return this.userManagementService.getUserInfo(false).pipe(take(1),map(user => {
      if (community && community !== 'undefined' || Session.isPortalAdministrator(user)) {
        return true;
      } else {
        this.router.navigate(['/errorCommunity']);
        return false;
      }
    }));
  }
   */
  check(community: string): Observable<boolean> | boolean {
    if (community && community !== 'undefined') {
      return true;
    } else {
      const obs = this.propertiesService.subscribeEnvironment().pipe(mergeMap(properties => {
        return this.userManagementService.getUserInfo(false).pipe(map(user => {
          return Session.isPortalAdministrator(user);
        }));
      }));
      obs.pipe(filter( isAdmin => !isAdmin)).subscribe( () => {
        this.router.navigate(['/errorCommunity']);
      });
      return obs;
    }
  }
/*
  check(community: string): Observable<boolean> | boolean {
    if(Session.isLoggedIn() && Session.isPortalAdministrator()) {
      return true;
    }
    else if (community && community !== 'undefined') {
      return true;
    } else {
      this.router.navigate(['errorcommunity']);
      return false;
    }
  }*/

  canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean> | boolean {
    return this.check(route.queryParams['communityId']);
  }

}