openaire-library/connect/communityGuard/connectAdminLoginGuard.guard.ts

import { Injectable } from '@angular/core';
import {
  Router,
  CanActivate,
  ActivatedRouteSnapshot,
  RouterStateSnapshot,
  ActivatedRoute,
  CanLoad, Route
} from '@angular/router';
import {Observable}       from 'rxjs/Observable';
import {Session} from '../../login/utils/helper.class';
import {LoginErrorCodes} from '../../login/utils/guardHelper.class';
import {CommunityService} from '../community/community.service';
import { EnvironmentSpecificService} from '../../utils/properties/environment-specific.service';
import { mergeMap } from 'rxjs/operators';

@Injectable()
export class ConnectAdminLoginGuard implements CanActivate, CanLoad{
  constructor(private router: Router,
              private communityService: CommunityService,
              private propertiesService:EnvironmentSpecificService,
              private route: ActivatedRoute) {}

  check(path: string): Observable<boolean> | boolean {
    let errorCode = LoginErrorCodes.NOT_LOGIN;
    let community = this.route.queryParams["communityId"];
    if (Session.isLoggedIn()) {
      if (Session.isPortalAdministrator() || Session.isCommunityCurator()) {
        return true;
      } else {
        let obs = this.propertiesService.subscribeEnvironment().map(res => res).mergeMap(properties => {
          return this.communityService.iscommunityManager(properties, properties["communityAPI"] + community, Session.getUserEmail())
        });
        obs.filter(enabled => !enabled)
            .subscribe(() => this.router.navigate(['/user-info'], {
              queryParams: {
                "errorCode": errorCode,
                "redirectUrl": path
              }
            }));
        return obs;
      }
    } else {
      errorCode = LoginErrorCodes.NOT_LOGIN;
      this.router.navigate(['/user-info'], {queryParams: {"errorCode": errorCode, "redirectUrl": path}});

      return false;
    }
  }

  canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean> | boolean {
    return this.check(state.url);
  }

  canLoad(route: Route): Observable<boolean> | Promise<boolean> | boolean {
    return this.check('/' + route.path);
  }
}