Lumen实现用户注册登录认证

前言

Lumen是一个基于Laravel的微框架，号称是以速度为生。截用Lumen官网的一段，号称是比silex和slim还要快。

本文将用Lumen来实现一个完整的用户注册、登录及获取用户信息的API。

Lumen官方网站：https://lumen.laravel.com/
Lumen中文网站：http://lumen.laravel-china.org/

安装

composer create-project --prefer-dist laravel/lumen lumen

数据库配置

跟全栈框架 Laravel 框架不一样的是，所有的 Lumen 框架的配置信息都存储在 .env 文件中。一旦 Lumen 成功安装，你需要配置本地环境,如果没有在目录下新建.env文件

APP_ENV=local

APP_DEBUG=true

APP_KEY=SomeRandomString!!!

DB_CONNECTION=mysql

DB_HOST=localhost

DB_PORT=3306

DB_DATABASE=lumen

DB_USERNAME=root

DB_PASSWORD=charlie

CACHE_DRIVER=memcached

QUEUE_DRIVER=sync

APP_TIMEZONE=PRC

DB_TIMEZONE=+08:00

三配置迁移数据库

php artisan make:migration create_users_table --create=users

执行这条命令后，会在项目目录lumen/database/migrations/ 目录下生成一个php文件，这个文件主要包括两个函数，在up()函数中根据你的需求定义数据库字段。

<?php

use Illuminate\Support\Facades\Schema;

use Illuminate\Database\Schema\Blueprint;

use Illuminate\Database\Migrations\Migration;

class CreateUsersTable extends Migration

{

/**

* Run the migrations.

* @return void

public function up()

{

Schema::create('users', function (Blueprint $table) {

$table->increments('id');

$table->string('username');

$table->string('password');

$table->string('email');

$table->string('api_token', 60)->unique();

$table->timestamps();

});

}

/**

* Reverse the migrations.

* @return void

public function down()

{

Schema::dropIfExists('users');

}

执行命令，创建数据库

php artisan migrate

数据库会生成一张users表

创建用户数据模型

如果你的项目文件夹lumen\app\文件夹下没有User.php文件，那么新建一个User.php文件，文件内容如下：

<?php

namespace App;

use Illuminate\Auth\Authenticatable;

use Laravel\Lumen\Auth\Authorizable;

use Illuminate\Database\Eloquent\Model;

use Illuminate\Contracts\Auth\Authenticatable as AuthenticatableContract;

use Illuminate\Contracts\Auth\Access\Authorizable as AuthorizableContract;

class User extends Model implements AuthenticatableContract, AuthorizableContract

{

use Authenticatable, Authorizable;

/**

* The attributes that are mass assignable.

* @var array

protected $fillable = [

'username', 'email', 'password', 'api_token'

];

/**

* The attributes excluded from the model's JSON form.

* @var array

protected $hidden = [

'password',

];

}

路由定义

定义三个路由，实现用户登录，注册及获取用户信息

路由类型	路由路径	路由控制器
POST	user/register	UserController@register
POST	user/login	UserController@login
GET	user/info	UserController@info

根据上述表的内容，在routes/web.php中定义路由

<?php

$app->get('/', function () use ($app) {

return $app->version();

});

//登录注册

$app->post('user/login', 'UserController@login');

$app->post('user/register', 'UserController@register');

$app->get('user/info', [

'middleware' => 'authToken',

'uses' => 'UserController@info'

]);

Controller逻辑

在Lumen\app\Http\Controllers\文件夹下新建用户控制器UserController.php，实现用户注册、登录和用户信息获取功能

<?php

namespace App\Http\Controllers;

use App\User;

use App\Http\Controllers\Controller;

use Illuminate\Http\Request;

use Illuminate\Support\Facades\Auth;

class UserController extends Controller

{

private $salt;

public function __construct()

{

$this->salt = "userloginregister";

}

//登录

public function login(Request $request)

{

if($request->has('username') && $request->has('password')){

$user = User::where('username', '=', $request->input('username'))->where('password', '=', sha1($this->salt.$request->input('password')))->first();

if($user){

$token = str_random(60);

$user->api_token = $token;

$user->save();

return $user->api_token;

}else{

return '用户名或密码不正确,登录失败';

}

}else{

return '登录信息不完整,请输入用户名和密码';

}

//注册

public function register(Request $request)

{

if($request->has('username') && $request->has('password') && $request->has('email')){

$user = new User;

$user->username = $request->input('username');

$user->password = sha1($this->salt.$request->input('password'));

$user->email = $request->input('email');

$user->api_token = str_random(60);

if($user->save()){

return '用户注册成功!';

}else{

return '用户注册失败!';

}

}else{

return '请输入完整用户信息!';

}

//信息

public function info()

{

return Auth::user();

}

认证服务

必须要通过token验证才能获取用户信息。在Lumen\app\Http\Providers\AuthServiceProvider.php中定义验证服务。我们使用header包含token的形式来验证。修改Lumen\app\Http\Providers\AuthServiceProvider.php文件代码。

<?php

namespace App\Providers;

use App\User;

use Illuminate\Support\Facades\Gate;

use Illuminate\Support\ServiceProvider;

class AuthServiceProvider extends ServiceProvider

{

/**

* Register any application services.

* @return void

public function register()

{

}

/**

* Boot the authentication services for the application.

* @return void

public function boot()

{

// Here you may define how you wish users to be authenticated for your Lumen

// application. The callback which receives the incoming request instance

// should return either a User instance or null. You're free to obtain

// the User instance via an API token or any other method necessary.

$this->app['auth']->viaRequest('api', function ($request) {

if ($request->header('api_token')) {

return User::where('api_token', '=', $request->header('api_token'))->first();

}

});

}

定义认证中间件

在Lumen\app\Http\Middleware\文件夹下定义认证路由中间件AuthToken.php，就是之前在路由中定义的”authToken”。

<?php

namespace App\Http\Middleware;

use Closure;

use Illuminate\Support\Facades\Auth;

class AuthToken

{

public function handle($request, Closure $next)

{

if(Auth::check()){

return $next($request);

}else{

abort(401);

}

启用配置信息

在lumen\app\bootstrap\app.php中取消注释

<?php

//让数据库信息和认证服务修改生效

$app->withFacades();

$app->withEloquent();

//认证中间件

$app->routeMiddleware([

'authToken' => App\Http\Middleware\AuthToken::class

]);

//开启注册提供者

$app->register(App\Providers\AppServiceProvider::class);

$app->register(App\Providers\AuthServiceProvider::class);

启动服务，测试

php -S localhost:8000

1.用户注册

查看数据库

2.用户登录

登录后会更新数据库的api_token

3.获取用户信息

错误信息：

[Symfony\Component\Debug\Exception\FatalErrorException]

Class 'Memcached' not found

解决办法，安装memcached 和php扩展

brew install memcached

brew install php56-memcached

启动memcached

memcached -D

PHP Fatal error: Call to a member function connection() on null in /Users/03315/www/lumen/vendor/illuminate/database/Eloquent/Model.php on line 1013

解决办法，需要开启，路径app/bootstrap/app.php

$app->withEloquent();