D-Net

import {Injectable} from "@angular/core";

import { ActivatedRoute, Router } from '@angular/router';

import { apiUrl, loginUrl } from '../domain/tempAPI';

import { deleteCookie, getCookie } from '../domain/utils';

import { Http } from '@angular/http';

import { User } from '../domain/typeScriptClasses';

import {CookieService} from "angular2-cookie/core";

@Injectable()

export class AuthenticationService {

  constructor(private route: ActivatedRoute,

              private router: Router,

              private http: Http,

              private _cookie: CookieService) {}

  private loginUrl : string = loginUrl;

  private apiUrl : string = apiUrl;

  // store the URL so we can redirect after logging in

  public redirectUrl: string;

  private _storage: Storage = sessionStorage;

  isLoggedIn: boolean = false;

  userEmail: string;

  userFullName: string;

  userRole: string;

  public loginWithState() {

    console.log(`logging in with state. Current url is: ${this.router.url}`);

    sessionStorage.setItem("state.location",this.router.url);

    window.location.href = this.loginUrl;

  }

  login(user: User){

    localStorage.setItem('user', JSON.stringify(user));

    this.isLoggedIn = true;

    this.userEmail = localStorage.getItem('email');

    this.userFullName = localStorage.getItem('name');

    this.userRole = localStorage.getItem('role');

  }

  logout(){

    deleteCookie('currentUser');

    sessionStorage.removeItem('name');

    sessionStorage.removeItem('email');

    sessionStorage.removeItem('role');

    this.router.navigate(['/home']);

  }

  public tryLogin() {

    if(getCookie('currentUser')) {

      console.log(`I got the cookie!`);

      this.http.get(this.apiUrl + '/user/login',{ withCredentials: true }).subscribe(

        userInfo => {console.log("User is still logged in")},

        () => {sessionStorage.removeItem('name');sessionStorage.removeItem('email');deleteCookie('name');sessionStorage.removeItem('role');},

        () => {

          if(!sessionStorage.getItem('name')) {

            console.log(`session.name wasn't found --> logging in via repo-service!`);

            this.http.get(this.apiUrl + '/user/login',{ withCredentials: true }).subscribe(

              userInfo => {

                console.log(userInfo.json());

                sessionStorage.setItem('name',userInfo.json()['name']);

                sessionStorage.setItem('email',userInfo.json()['email']);

                sessionStorage.setItem('role',userInfo.json()['role']);

              },

              () => {

                sessionStorage.removeItem('name');

                sessionStorage.removeItem('email');

                sessionStorage.removeItem('role');

                deleteCookie('currentUser');

              }, () => {

                this.isLoggedIn = true;

              }

            );

          }

          if(sessionStorage.getItem("state.location")) {

            let state = sessionStorage.getItem("state.location");

            sessionStorage.removeItem("state.location");

            this.router.navigateByUrl(state);

          }

        }

      );

    }

  }

    public getIsUserLoggedIn() {

      return this.isLoggedIn;

    }

    public getUserName() {

      if (this.isLoggedIn)

        return sessionStorage.getItem('name');

    }

    public getUserEmail() {

      if (this.isLoggedIn)

        return sessionStorage.getItem('email');

    }

    public getUserRole() {

      if (this.isLoggedIn)

        return sessionStorage.getItem('role');

    }

}