Spring Security OAuthを使用したフロントエンドアプリケーション – 認証コードフロー

import {Component} from '@angular/core';

@Component({
    selector: 'app-root',
    template: `<nav class="navbar navbar-default">
  <div class="container-fluid">
    <div class="navbar-header">
      <a class="navbar-brand" href="/">Spring Security Oauth - Authorization Code</a>
    </div>
  </div>
</nav>
<router-outlet></router-outlet>`
})

export class AppComponent {}

import {Component} from '@angular/core';
import {AppService} from './app.service'

@Component({
    selector: 'home-header',
    providers:[AppService],
  template: `<div class="container" >
    <button ** ngIf="!isLoggedIn" class="btn btn-primary" (click)="login()" type="submit">Login</button>
    <div ** ngIf="isLoggedIn" class="content">
        <span>Welcome !!</span>
        <a class="btn btn-default pull-right"(click)="logout()" href="#">Logout</a>
        <br/>
        <foo-details></foo-details>
    </div>
</div>`
})

export class HomeComponent {
     public isLoggedIn = false;

    constructor(
        private __service:AppService){}

    ngOnInit(){
        this.isLoggedIn = this.__service.checkCredentials();
        let i = window.location.href.indexOf('code');
        if(!this.isLoggedIn && i != -1){
            this.__service.retrieveToken(window.location.href.substring(i + 5));
        }
    }

    login() {
        window.location.href = 'http://localhost:8081/spring-security-oauth-server/oauth/authorize?response__type=code&client__id=' + this.__service.clientId + '&redirect__uri='+ this.__service.redirectUri;
    }

    logout() {
        this.__service.logout();
    }
}

import { Component } from '@angular/core';
import {AppService, Foo} from './app.service'

@Component({
  selector: 'foo-details',
  providers:[AppService],
  template: `<div class="container">
    <h1 class="col-sm-12">Foo Details</h1>
    <div class="col-sm-12">
        <label class="col-sm-3">ID</label> <span>{{foo.id}}</span>
    </div>
    <div class="col-sm-12">
        <label class="col-sm-3">Name</label> <span>{{foo.name}}</span>
    </div>
    <div class="col-sm-12">
        <button class="btn btn-primary" (click)="getFoo()" type="submit">New Foo</button>
    </div>
</div>`
})

export class FooComponent {
    public foo = new Foo(1,'sample foo');
    private foosUrl = 'http://localhost:8082/spring-security-oauth-resource/foos/';

    constructor(private __service:AppService) {}

    getFoo(){
        this.__service.getResource(this.foosUrl+this.foo.id)
         .subscribe(
            data => this.foo = data,
            error =>  this.foo.name = 'Error');
    }
}

import {Injectable} from '@angular/core';
import { Cookie } from 'ng2-cookies';
import { HttpClient, HttpHeaders } from '@angular/common/http';
import { Observable } from 'rxjs/Observable';
import 'rxjs/add/operator/catch';
import 'rxjs/add/operator/map';

export class Foo {
  constructor(
    public id: number,
    public name: string) { }
}

@Injectable()
export class AppService {
   public clientId = 'fooClientId';
   public redirectUri = 'http://localhost:8089/';

  constructor(
    private __http: HttpClient){}

  retrieveToken(code){
    let params = new URLSearchParams();
    params.append('grant__type','authorization__code');
    params.append('client__id', this.clientId);
    params.append('redirect__uri', this.redirectUri);
    params.append('code',code);

    let headers = new HttpHeaders({'Content-type': 'application/x-www-form-urlencoded; charset=utf-8', 'Authorization': 'Basic '+btoa(this.clientId+":secret")});
     this.__http.post('http://localhost:8081/spring-security-oauth-server/oauth/token', params.toString(), { headers: headers })
    .subscribe(
      data => this.saveToken(data),
      err => alert('Invalid Credentials')
    );
  }

  saveToken(token){
    var expireDate = new Date().getTime() + (1000 **  token.expires__in);
    Cookie.set("access__token", token.access__token, expireDate);
    console.log('Obtained Access token');
    window.location.href = 'http://localhost:8089';
  }

  getResource(resourceUrl) : Observable<any>{
    var headers = new HttpHeaders({'Content-type': 'application/x-www-form-urlencoded; charset=utf-8', 'Authorization': 'Bearer '+Cookie.get('access__token')});
    return this.__http.get(resourceUrl,{ headers: headers })
                   .catch((error:any) => Observable.throw(error.json().error || 'Server error'));
  }

  checkCredentials(){
    return Cookie.check('access__token');
  }

  logout() {
    Cookie.delete('access__token');
    window.location.reload();
  }
}