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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 IlluminateSupportFacadesSchema;
use IlluminateDatabaseSchemaBlueprint;
use IlluminateDatabaseMigrationsMigration;
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lumenapp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 IlluminateAuthAuthenticatable;
use LaravelLumenAuthAuthorizable;
use IlluminateDatabaseEloquentModel;
use IlluminateContractsAuthAuthenticatable as AuthenticatableContract;
use IlluminateContractsAuthAccessAuthorizable 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LumenappHttpControllers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 AppHttpControllers;
use AppUser;
use AppHttpControllersController;
use IlluminateHttpRequest;
use IlluminateSupportFacadesAuth;
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LumenappHttpProvidersAuthServiceProvider.php中定义验证服务。我们使用header包含token的形式来验证。修改LumenappHttpProvidersAuthServiceProvider.php文件代码。

<?php
namespace AppProviders;
use AppUser;
use IlluminateSupportFacadesGate;
use IlluminateSupportServiceProvider;
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LumenappHttpMiddleware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 AppHttpMiddleware;
use Closure;
use IlluminateSupportFacadesAuth;
class AuthToken
{
public function handle($request, Closure $next)
{
if(Auth::check()){
return $next($request);
}else{
abort(401);
}
}
}

启用配置信息

在lumenappootstrapapp.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’ => AppHttpMiddlewareAuthToken::class
]);
//开启注册提供者
$app->register(AppProvidersAppServiceProvider::class);
$app->register(AppProvidersAuthServiceProvider::class);

启动服务，测试

php -S localhost:8000

1.用户注册
user-register

查看数据库
show-user

2.用户登录
user-login

登录后会更新数据库的api_token
lumen-5

3.获取用户信息
lumen-6

错误信息：

1.

[SymfonyComponentDebugExceptionFatalErrorException]
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

2.

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();