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

import {map, filter, mergeMap, take} from 'rxjs/operators';
import {Injectable} from '@angular/core';
import {
  Router,
  CanActivate,
  ActivatedRouteSnapshot,
  RouterStateSnapshot,
  CanLoad, Route, UrlSegment
} from '@angular/router';
import {Observable, of, Subscription} from 'rxjs';
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';
import {StringUtils} from '../../utils/string-utils.class';
import {UserManagementService} from "../../services/user-management.service";
import {properties} from "../../../../environments/environment";

@Injectable()
export class ConnectAdminLoginGuard implements CanActivate, CanLoad {
  sub: Subscription = null;

  constructor(private router: Router,
              private communityService: CommunityService,
              private propertiesService: EnvironmentSpecificService,
              private userManagementService: UserManagementService) {
  }

  check(community: string, path: string): Observable<boolean> | boolean {
    let errorCode = LoginErrorCodes.NOT_LOGIN;
    let email = null;
    const authorized = this.userManagementService.getUserInfo(false).pipe(take(1),map(user => {
        if (user) {
          email = user.email;
          if (Session.isPortalAdministrator(user) || Session.isCommunityCurator(user) || Session.isManager('community', community, user)) {
            return of(true);
          } else {
            errorCode = LoginErrorCodes.NOT_ADMIN;
            return this.communityService.isCommunityManagerByState(properties, properties['communityAPI'] + community,
              email).pipe(take(1));
          }
        } else {
          return of(false);
        }
      }), mergeMap( authorized => {
        return authorized;
      }));
    //}));
    this.sub = authorized.pipe(filter(authorized => !authorized)).subscribe(() => {
      this.router.navigate(['/user-info'], {
        queryParams: {
          'errorCode': errorCode,
          'redirectUrl': path
        }
    })});
    return authorized;
  }

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

  canLoad(route: Route, segments: UrlSegment[]): Observable<boolean> | Promise<boolean> | boolean {
    const path = StringUtils.URLSegmentsToPath(segments) + document.location.search;
    return this.check(ConnectHelper.getCommunityFromPath(path), path);
  }

  canDeactivate() {
    if(this.sub) {
      this.sub.unsubscribe();
    }
    return true;
  }
}