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

import { Injectable } from '@angular/core';
import {Router, CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot, 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 {ConnectHelper} from '../connectHelper';

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

   check(community: string, path: string): Observable<boolean> | boolean {
     let errorCode = LoginErrorCodes.NOT_SUBSCRIBER;
     if (!Session.isLoggedIn()) {
       errorCode = LoginErrorCodes.NOT_LOGIN;
       this.router.navigate(['/user-info'], {queryParams: {'errorCode': errorCode, 'redirectUrl': path}});
       return false;
     } else {
       const obs = this.propertiesService.subscribeEnvironment().mergeMap(properties => {
         if(!community){
          community  = ConnectHelper.getCommunityFromDomain(properties.domain);
         }
         return this.communityService.isSubscribedToCommunity( community, Session.getUserEmail(), properties["adminToolsAPIURL"])
       });
       obs.filter(enabled => !enabled)
           .subscribe(() => this.router.navigate(['/user-info'], {
             queryParams: {
               'errorCode': errorCode,
               'redirectUrl': path
             }
           }));
       return obs;
     }
   }

  canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean> | boolean {
    return this.check(route.queryParams['communityId'], state.url);
  }
  canLoad(route: Route): Observable<boolean> | Promise<boolean> | boolean {
    const path = '/' + route.path;
    return this.check(ConnectHelper.getCommunityFromPath(path), path);

  }

}