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

import { Injectable } from '@angular/core';
import {Router, CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot, ActivatedRoute} 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 {
  constructor(private router: Router,
              private communityService: CommunityService,
              private propertiesService:EnvironmentSpecificService,
              private route: ActivatedRoute) {}

  canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean> | boolean {
    let errorCode = LoginErrorCodes.NOT_SUBSCRIBER;
    let community = this.route.queryParams["communityId"];
    if(!community && (typeof document !== 'undefined')){
     community  = ConnectHelper.getCommunityFromDomain(document.location.hostname);
    }
    if(!Session.isLoggedIn()){
      errorCode = LoginErrorCodes.NOT_LOGIN;
      this.router.navigate(['/user-info'], { queryParams: { "errorCode": errorCode, "redirectUrl":  state.url } });
      return false;
    }
    else {
      let obs = this.propertiesService.subscribeEnvironment().mergeMap(properties => {
        return this.communityService.isSubscribedToCommunity(community, Session.getUserEmail(), properties["adminToolsAPIURL"])
      });
      obs.filter(enabled => !enabled)
          .subscribe(() => this.router.navigate(['/user-info'], {
            queryParams: {
              "errorCode": errorCode,
              "redirectUrl": state.url
            }
          }));
      return obs;
    }
  }

}