Angular 8 配置 oidc

配置相对较为繁琐，最后会放上 Github 源码地址

新建一个 ng 项目

ng new angular-oidc

进入目录 cd angular-oidc

安装 oidc-client

npm i oidc-client --save

配置 oidc-client 参数

打开 environment.ts 将下面的代码覆盖原来的内容

import { WebStorageStateStore } from "oidc-client";

export const environment = {
  production: false,
  authConfig: {
    authority: "http://localhost:57001",
    client_id: "query",
    redirect_uri: "http://localhost:4200/login-callback",
    response_type: "id_token token",
    scope: "openid profile",
    post_logout_redirect_uri: "http://localhost:4200",
    accessTokenExpiringNotificationTime: 4,
    filterProtocolClaims: true,
    silentRequestTimeout: 10000,
    loadUserInfo: true,
    userStore: new WebStorageStateStore({ store: window.localStorage }),
  },
};

需要修改的几个参数:

• authority: 认证服务器,需要修改为自己的认证服务器
• client_id: 客户端 id ,按照约定修改即可
• redirect_uri: 认证服务器回调的客户端页面
• post_logout_redirect_uri: 登出回调链接

模块划分

这里我们把模块划分为2块: 1) 游客模块 2) 用户模块

默认的壳组件所在的 module 作为游客模块, 另外还需要构建一个用户模块

游客模块

为了方便理解, 游客模块创建一个欢迎页, 点击继续按钮访问用户模块.

1. 创建一个欢迎页

没什么特别的作用, 就是为了方便理解单独设立的一个交互页面.

ng g c public/index

修改 index.component.html

<h3>WELLCOME TO ANGULAR OIDC</h3>
<input type="button" value="visit" (click)="visitAuth()">

修改 index.component.ts

import { Component, OnInit } from "@angular/core";
import { Router } from "@angular/router";

@Component({
  selector: "app-index",
  templateUrl: "./index.component.html",
  styleUrls: ["./index.component.less"],
})
export class IndexComponent implements OnInit {
  constructor(private _router: Router) {}

  ngOnInit() {}

  public visitAuth(): void {
    this._router.navigate(["auth"]);
  }
}

2. 创建一个回调页

回调页是用户 oidc 认证结束后的回调, 起到一个过度的作用(目前先空着)

ng g c public/login-callback

3. 配置路由

打开 app-routing.module.ts, 对照修改

import { NgModule } from "@angular/core";
import { Routes, RouterModule } from "@angular/router";
import { IndexComponent } from "./public/index/index.component";
import { LoginCallbackComponent } from "./public/login-callback/login-callback.component";

const routes: Routes = [
  {
    path: "",
    pathMatch: "full",
    component: IndexComponent,
  },
  {
    path: "login-callback",
    component: LoginCallbackComponent,
  },
];

@NgModule({
  imports: [RouterModule.forRoot(routes)],
  exports: [RouterModule],
})
export class AppRoutingModule {}

启动程序 ng s -o, 这时候已经能看到一点点信息了, 不过还没有 home 路由, 下面来配置一下

用户模块

1. 添加一个 auth 模块

ng g m auth/auth --flat

--flat:不在一个单独的文件夹创建

2. 将 auth 模块添加到壳组件

打开 app-module.ts, 主要修改一下内容

import { AuthModule } from "./auth/auth.module";
...

imports: [..., AuthModule],

3. 添加 auth "壳组件"

ng g c auth/auth

4. 添加 auth 模块的路由

ng g m auth/auth-routing --flat

修改 auth-routing.module.ts 内容如下:

import { NgModule } from "@angular/core";
import { RouterModule, Routes } from "@angular/router";
import { AuthComponent } from "./auth/auth.component";

const routes: Routes = [
  {
    path: "home",
    component: AuthComponent,
  },
];

@NgModule({
  exports: [RouterModule],
})
export class AuthRoutingModule {}

5. 修改 app-routing.module.ts 添加 home 路由

const routes: Routes = [
  {
    path: "",
    pathMatch: "full",
    component: IndexComponent,
  },
  {
    path: "login-callback",
    component: LoginCallbackComponent,
  },
  {
    path: "home",
    component: AuthComponent,
  },
];

ctrl + c -> y 停止之前启动项目的终端, ng s 重新启动项目

此时的项目已经可以从游客路由跳转至用户路由，但我们是不允许游客默认访问用户路由的, 这时候就应该 守卫(Guard) 登场了。

配置守卫(Guard)

1. 添加 auth.service (认证相关的函数)

ng g s auth/auth --flat

替换 auth.service.ts 内容:

import { Injectable, EventEmitter } from '@angular/core';
import { environment } from 'src/environments/environment';
import { UserManager, User } from 'oidc-client';
import { Observable, from } from 'rxjs';


@Injectable({
  providedIn: 'root'
})
export class AuthService {

  // 大多数 oidc-client 操作都在其中
  private manager: UserManager = new UserManager(environment.authConfig);
  // private manager: UserManager = undefined;

  // 登录状态改变事件
  public loginStatusChanged: EventEmitter<User> = new EventEmitter();
  // localStorage 中存放用户信息的 Key

  private userKey = `oidc.user:${environment.authConfig.authority}:${environment.authConfig.client_id}`;
  // private userKey = `oidc.user:${this._conf.env.authConfig.authority}:${this._conf.env.authConfig.client_id}`;

  constructor() {
    // 如果访问用的 token 过期，调用 login()
    this.manager.events.addAccessTokenExpired(() => {
      this.login();
    });
  }

  login() {
    this.manager.signinRedirect();
  }

  logout() {
    this.manager.signoutRedirect();
  }

  loginCallBack() {
    return Observable.create(observer => {
      from(this.manager.signinRedirectCallback())
        .subscribe((user: User) => {
          this.loginStatusChanged.emit(user);
          observer.next(user);
          observer.complete();
        });
    });
  }

  tryGetUser() {

    return from(this.manager.getUser());
  }

  get type(): string {
    return 'Bearer';
  }

  get user(): User | null {
    const temp = localStorage.getItem(this.userKey);
    if (temp) {
      const user: User = JSON.parse(temp);
      return user;
    }
    return null;
  }

  get token(): string | null {
    const temp = localStorage.getItem(this.userKey);
    if (temp) {
      const user: User = JSON.parse(temp);
      return user.access_token;
    }
    return null;
  }

  get authorizationHeader(): string | null {
    if (this.token) {
      return `${this.type} ${this.token}`;
    }
    return null;
  }
}

2. 添加 auth.guard

ng g g auth/auth --flat

选择 CanActivate

替换 auth.guard.ts 内容:

import { Injectable } from "@angular/core";
import {
  CanActivate,
  CanActivateChild,
  ActivatedRouteSnapshot,
  RouterStateSnapshot,
  UrlTree,
} from "@angular/router";
import { Observable } from "rxjs";
import { map } from "rxjs/operators";
import { AuthService } from "./auth.service";
import { User } from "oidc-client";

@Injectable({
  providedIn: "root",
})
export class AuthGuard implements CanActivate {
  constructor(private _auth: AuthService) {}

  canActivate(
    next: ActivatedRouteSnapshot,
    state: RouterStateSnapshot
  ): Observable<boolean> {
    return this.mapper(this._auth.tryGetUser());
  }

  private mapper = map((user: User) => {
    if (user) return true;
    this._auth.login();
    return false;
  });
}

3. 修改 app-routing.module.ts

import { NgModule } from "@angular/core";
import { RouterModule, Routes } from "@angular/router";
import { AuthComponent } from "./auth/auth.component";
import { C1Component } from "./test/c1/c1.component";
import { C2Component } from "./test/c2/c2.component";

const routes: Routes = [
  {
    path: "home",
    component: AuthComponent,
    children: [
      { path: "c1", component: C1Component },
      { path: "c2", component: C2Component },
    ],
  },
];

@NgModule({
  imports: [RouterModule.forChild(routes)],
  exports: [RouterModule],
})
export class AuthRoutingModule {}

4. 修改 login-callback.component.ts 页

回到成功后，导航到 home 页，你也可以写更多的其他逻辑。

import { Component, OnInit } from "@angular/core";
import { Router } from "@angular/router";
import { User } from "oidc-client";
import { AuthService } from "src/app/auth/auth.service";

@Component({
  selector: "app-login-callback",
  templateUrl: "./login-callback.component.html",
  styleUrls: ["./login-callback.component.less"],
})
export class LoginCallbackComponent implements OnInit {
  constructor(private _router: Router, private _auth: AuthService) {}

  ngOnInit() {
    this._auth.loginCallBack().subscribe((user: User) => {
      this._router.navigate(["home"]);
    });
  }
}

顺便美化一下下样式

login-callback.component.html:

<div class="callback-bar">
  <span style="margin-left: 10px;">登录成功，跳转中...</span>
</div>

login-callback.component.less(我这里使用的是 less，你的可能是 css/scss/sass):

.callback-bar {
    margin: 0px 0px 0px 0px;
    padding: 8px 0px 0px 0px;
    font-size: 24px;
    font-weight: 600px;
    color: white;
    background-color: #3881bf;
    box-shadow: 0px 3px 5px #666;
    height: 50px;
}

再此重启一下程序（往往一些奇奇怪怪的问题重新启动后会被解决）。

这时候就已经实现了一个认证的过程，不过 auth 模块（用户模块）只有一个组件，总感觉不够直观，因此，我们需要在 auth 模块添加更多的组件，形成子路由，在观察功能。

添加 auth 子组件、子路由

修改 auth.component 组件

1. auth.component.html

<div>
  <input type="button" value="c1" (click)="goC1()">
  <input type="button" value="c2" (click)="goC2()">
</div>

<div>
  <router-outlet></router-outlet>
</div>

2. auth.component.ts

import { Component, OnInit } from "@angular/core";
import { Router } from "@angular/router";

@Component({
  selector: "app-auth",
  templateUrl: "./auth.component.html",
  styleUrls: ["./auth.component.less"],
})
export class AuthComponent implements OnInit {
  constructor(private _router: Router) {}

  ngOnInit() {}

  public goC1(): void {
    this._router.navigate(["home/c1"]);
  }

  public goC2(): void {
    this._router.navigate(["home/c2"]);
  }
}

新建子路由

2. 添加 c1、c2 子组件

ng g c auth/test/c1
ng g c auth/test/c2

保持默认内容即可。

3. 修改 auth-routing.module.ts

import { NgModule } from "@angular/core";
import { RouterModule, Routes } from "@angular/router";
import { AuthComponent } from "./auth/auth.component";
import { C1Component } from "./test/c1/c1.component";
import { C2Component } from "./test/c2/c2.component";

const routes: Routes = [
  {
    path: "home",
    component: AuthComponent,
    children: [
      { path: "c1", component: C1Component },
      { path: "c2", component: C2Component },
    ],
  },
];

@NgModule({
  imports: [RouterModule.forChild(routes)],
  exports: [RouterModule],
})
export class AuthRoutingModule {}

重启项目，这时候得到一个错误信息：

Error: Template parse errors:
'router-outlet' is not a known element:

这表示 auth 模块没有引入 RouterModule，其实是我们的 auth.module.ts 没有引入 auth-routing.module.ts 导致的（routing 中有引入 RouterModule）

修改 auth.module.ts:

...
import { AuthRoutingModule } from './auth-routing.module';

@NgModule({
  ...
  imports: [..., AuthRoutingModule],
})

重启项目，可以看到现在基本功能都已经实现了，不过还差一个退出功能。

退出登录

1. 修改 auth.component.html

<div>
  <input type="button" value="c1" (click)="goC1()">
  <input type="button" value="c2" (click)="goC2()">
  <input type="button" value="exit" (click)="exit()">
</div>

<div>
  <router-outlet></router-outlet>
</div>

2. 修改 auth.component.ts

import { Component, OnInit } from "@angular/core";
import { Router } from "@angular/router";
import { AuthService } from "../auth.service";

@Component({
  selector: "app-auth",
  templateUrl: "./auth.component.html",
  styleUrls: ["./auth.component.less"],
})
export class AuthComponent implements OnInit {
  constructor(private _router: Router, private _auth: AuthService) {}

  ngOnInit() {}

  public goC1(): void {
    this._router.navigate(["home/c1"]);
  }

  public goC2(): void {
    this._router.navigate(["home/c2"]);
  }

  public exit(): void {
    this._auth.logout();
  }
}

重启测试，退出成功！

访问 /home 自动跳转登录，没问题。

访问 /home/c1 居然跳过了认证，直接进来了！

造成这个问题的原因是但是我们的守卫添加的方式是 canActivate，canActivate只会保护本路由，而不会保护其子路由。因此，我们还需要保护子路由！

保护子路由

1. 修改 auth.guard.ts

import { Injectable } from "@angular/core";
import {
  CanActivate,
  CanActivateChild,
  ActivatedRouteSnapshot,
  RouterStateSnapshot,
  UrlTree,
} from "@angular/router";
import { Observable } from "rxjs";
import { map } from "rxjs/operators";
import { AuthService } from "./auth.service";
import { User } from "oidc-client";

@Injectable({
  providedIn: "root",
})
export class AuthGuard implements CanActivate, CanActivateChild {
  constructor(private _auth: AuthService) {}

  canActivate(
    next: ActivatedRouteSnapshot,
    state: RouterStateSnapshot
  ): Observable<boolean> {
    return this.mapper(this._auth.tryGetUser());
  }

  canActivateChild(
    next: ActivatedRouteSnapshot,
    state: RouterStateSnapshot
  ):
    | Observable<boolean | UrlTree>
    | Promise<boolean | UrlTree>
    | boolean
    | UrlTree {
    return this.mapper(this._auth.tryGetUser());
  }

  private mapper = map((user: User) => {
    if (user) return true;
    this._auth.login();
    return false;
  });
}

2. 修改 auth-routing.module.ts
主要修改代码如下：

import { AuthGuard } from "./auth.guard"; // <- here

const routes: Routes = [
  {
    path: "home",
    component: AuthComponent,
    canActivateChild: [AuthGuard], // <- here
    children: [
      { path: "c1", component: C1Component },
      { path: "c2", component: C2Component },
    ],
  },
];

重启项目，再此访问 '/home/c1'，成功跳转，访问 '/home'，同样成功跳转。

Github

angular-oidc